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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /drivers/media/i2c/soc_camera | |
parent | Initial commit. (diff) | |
download | linux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip |
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/media/i2c/soc_camera')
-rw-r--r-- | drivers/media/i2c/soc_camera/Kconfig | 66 | ||||
-rw-r--r-- | drivers/media/i2c/soc_camera/Makefile | 10 | ||||
-rw-r--r-- | drivers/media/i2c/soc_camera/mt9m001.c | 758 | ||||
-rw-r--r-- | drivers/media/i2c/soc_camera/mt9t112.c | 1163 | ||||
-rw-r--r-- | drivers/media/i2c/soc_camera/mt9v022.c | 1013 | ||||
-rw-r--r-- | drivers/media/i2c/soc_camera/ov5642.c | 1088 | ||||
-rw-r--r-- | drivers/media/i2c/soc_camera/ov772x.c | 1124 | ||||
-rw-r--r-- | drivers/media/i2c/soc_camera/ov9640.c | 739 | ||||
-rw-r--r-- | drivers/media/i2c/soc_camera/ov9640.h | 208 | ||||
-rw-r--r-- | drivers/media/i2c/soc_camera/ov9740.c | 997 | ||||
-rw-r--r-- | drivers/media/i2c/soc_camera/rj54n1cb0c.c | 1416 | ||||
-rw-r--r-- | drivers/media/i2c/soc_camera/tw9910.c | 999 |
12 files changed, 9581 insertions, 0 deletions
diff --git a/drivers/media/i2c/soc_camera/Kconfig b/drivers/media/i2c/soc_camera/Kconfig new file mode 100644 index 000000000..7c2aabc8a --- /dev/null +++ b/drivers/media/i2c/soc_camera/Kconfig @@ -0,0 +1,66 @@ +comment "soc_camera sensor drivers" + +config SOC_CAMERA_MT9M001 + tristate "mt9m001 support" + depends on SOC_CAMERA && I2C + help + This driver supports MT9M001 cameras from Micron, monochrome + and colour models. + +config SOC_CAMERA_MT9M111 + tristate "legacy soc_camera mt9m111, mt9m112 and mt9m131 support" + depends on SOC_CAMERA && I2C + select VIDEO_MT9M111 + help + This driver supports MT9M111, MT9M112 and MT9M131 cameras from + Micron/Aptina. + This is the legacy configuration which shouldn't be used anymore, + while VIDEO_MT9M111 should be used instead. + +config SOC_CAMERA_MT9T112 + tristate "mt9t112 support" + depends on SOC_CAMERA && I2C + help + This driver supports MT9T112 cameras from Aptina. + +config SOC_CAMERA_MT9V022 + tristate "mt9v022 and mt9v024 support" + depends on SOC_CAMERA && I2C + help + This driver supports MT9V022 cameras from Micron + +config SOC_CAMERA_OV5642 + tristate "ov5642 camera support" + depends on SOC_CAMERA && I2C + help + This is a V4L2 camera driver for the OmniVision OV5642 sensor + +config SOC_CAMERA_OV772X + tristate "ov772x camera support" + depends on SOC_CAMERA && I2C + help + This is a ov772x camera driver + +config SOC_CAMERA_OV9640 + tristate "ov9640 camera support" + depends on SOC_CAMERA && I2C + help + This is a ov9640 camera driver + +config SOC_CAMERA_OV9740 + tristate "ov9740 camera support" + depends on SOC_CAMERA && I2C + help + This is a ov9740 camera driver + +config SOC_CAMERA_RJ54N1 + tristate "rj54n1cb0c support" + depends on SOC_CAMERA && I2C + help + This is a rj54n1cb0c video driver + +config SOC_CAMERA_TW9910 + tristate "tw9910 support" + depends on SOC_CAMERA && I2C + help + This is a tw9910 video driver diff --git a/drivers/media/i2c/soc_camera/Makefile b/drivers/media/i2c/soc_camera/Makefile new file mode 100644 index 000000000..8c7770f62 --- /dev/null +++ b/drivers/media/i2c/soc_camera/Makefile @@ -0,0 +1,10 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-$(CONFIG_SOC_CAMERA_MT9M001) += mt9m001.o +obj-$(CONFIG_SOC_CAMERA_MT9T112) += mt9t112.o +obj-$(CONFIG_SOC_CAMERA_MT9V022) += mt9v022.o +obj-$(CONFIG_SOC_CAMERA_OV5642) += ov5642.o +obj-$(CONFIG_SOC_CAMERA_OV772X) += ov772x.o +obj-$(CONFIG_SOC_CAMERA_OV9640) += ov9640.o +obj-$(CONFIG_SOC_CAMERA_OV9740) += ov9740.o +obj-$(CONFIG_SOC_CAMERA_RJ54N1) += rj54n1cb0c.o +obj-$(CONFIG_SOC_CAMERA_TW9910) += tw9910.o diff --git a/drivers/media/i2c/soc_camera/mt9m001.c b/drivers/media/i2c/soc_camera/mt9m001.c new file mode 100644 index 000000000..1bfb0d530 --- /dev/null +++ b/drivers/media/i2c/soc_camera/mt9m001.c @@ -0,0 +1,758 @@ +/* + * Driver for MT9M001 CMOS Image Sensor from Micron + * + * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/videodev2.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include <linux/log2.h> +#include <linux/module.h> + +#include <media/soc_camera.h> +#include <media/drv-intf/soc_mediabus.h> +#include <media/v4l2-clk.h> +#include <media/v4l2-subdev.h> +#include <media/v4l2-ctrls.h> + +/* + * mt9m001 i2c address 0x5d + * The platform has to define struct i2c_board_info objects and link to them + * from struct soc_camera_host_desc + */ + +/* mt9m001 selected register addresses */ +#define MT9M001_CHIP_VERSION 0x00 +#define MT9M001_ROW_START 0x01 +#define MT9M001_COLUMN_START 0x02 +#define MT9M001_WINDOW_HEIGHT 0x03 +#define MT9M001_WINDOW_WIDTH 0x04 +#define MT9M001_HORIZONTAL_BLANKING 0x05 +#define MT9M001_VERTICAL_BLANKING 0x06 +#define MT9M001_OUTPUT_CONTROL 0x07 +#define MT9M001_SHUTTER_WIDTH 0x09 +#define MT9M001_FRAME_RESTART 0x0b +#define MT9M001_SHUTTER_DELAY 0x0c +#define MT9M001_RESET 0x0d +#define MT9M001_READ_OPTIONS1 0x1e +#define MT9M001_READ_OPTIONS2 0x20 +#define MT9M001_GLOBAL_GAIN 0x35 +#define MT9M001_CHIP_ENABLE 0xF1 + +#define MT9M001_MAX_WIDTH 1280 +#define MT9M001_MAX_HEIGHT 1024 +#define MT9M001_MIN_WIDTH 48 +#define MT9M001_MIN_HEIGHT 32 +#define MT9M001_COLUMN_SKIP 20 +#define MT9M001_ROW_SKIP 12 + +/* MT9M001 has only one fixed colorspace per pixelcode */ +struct mt9m001_datafmt { + u32 code; + enum v4l2_colorspace colorspace; +}; + +/* Find a data format by a pixel code in an array */ +static const struct mt9m001_datafmt *mt9m001_find_datafmt( + u32 code, const struct mt9m001_datafmt *fmt, + int n) +{ + int i; + for (i = 0; i < n; i++) + if (fmt[i].code == code) + return fmt + i; + + return NULL; +} + +static const struct mt9m001_datafmt mt9m001_colour_fmts[] = { + /* + * Order important: first natively supported, + * second supported with a GPIO extender + */ + {MEDIA_BUS_FMT_SBGGR10_1X10, V4L2_COLORSPACE_SRGB}, + {MEDIA_BUS_FMT_SBGGR8_1X8, V4L2_COLORSPACE_SRGB}, +}; + +static const struct mt9m001_datafmt mt9m001_monochrome_fmts[] = { + /* Order important - see above */ + {MEDIA_BUS_FMT_Y10_1X10, V4L2_COLORSPACE_JPEG}, + {MEDIA_BUS_FMT_Y8_1X8, V4L2_COLORSPACE_JPEG}, +}; + +struct mt9m001 { + struct v4l2_subdev subdev; + struct v4l2_ctrl_handler hdl; + struct { + /* exposure/auto-exposure cluster */ + struct v4l2_ctrl *autoexposure; + struct v4l2_ctrl *exposure; + }; + struct v4l2_rect rect; /* Sensor window */ + struct v4l2_clk *clk; + const struct mt9m001_datafmt *fmt; + const struct mt9m001_datafmt *fmts; + int num_fmts; + unsigned int total_h; + unsigned short y_skip_top; /* Lines to skip at the top */ +}; + +static struct mt9m001 *to_mt9m001(const struct i2c_client *client) +{ + return container_of(i2c_get_clientdata(client), struct mt9m001, subdev); +} + +static int reg_read(struct i2c_client *client, const u8 reg) +{ + return i2c_smbus_read_word_swapped(client, reg); +} + +static int reg_write(struct i2c_client *client, const u8 reg, + const u16 data) +{ + return i2c_smbus_write_word_swapped(client, reg, data); +} + +static int reg_set(struct i2c_client *client, const u8 reg, + const u16 data) +{ + int ret; + + ret = reg_read(client, reg); + if (ret < 0) + return ret; + return reg_write(client, reg, ret | data); +} + +static int reg_clear(struct i2c_client *client, const u8 reg, + const u16 data) +{ + int ret; + + ret = reg_read(client, reg); + if (ret < 0) + return ret; + return reg_write(client, reg, ret & ~data); +} + +static int mt9m001_init(struct i2c_client *client) +{ + int ret; + + dev_dbg(&client->dev, "%s\n", __func__); + + /* + * We don't know, whether platform provides reset, issue a soft reset + * too. This returns all registers to their default values. + */ + ret = reg_write(client, MT9M001_RESET, 1); + if (!ret) + ret = reg_write(client, MT9M001_RESET, 0); + + /* Disable chip, synchronous option update */ + if (!ret) + ret = reg_write(client, MT9M001_OUTPUT_CONTROL, 0); + + return ret; +} + +static int mt9m001_s_stream(struct v4l2_subdev *sd, int enable) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + /* Switch to master "normal" mode or stop sensor readout */ + if (reg_write(client, MT9M001_OUTPUT_CONTROL, enable ? 2 : 0) < 0) + return -EIO; + return 0; +} + +static int mt9m001_set_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9m001 *mt9m001 = to_mt9m001(client); + struct v4l2_rect rect = sel->r; + const u16 hblank = 9, vblank = 25; + int ret; + + if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE || + sel->target != V4L2_SEL_TGT_CROP) + return -EINVAL; + + if (mt9m001->fmts == mt9m001_colour_fmts) + /* + * Bayer format - even number of rows for simplicity, + * but let the user play with the top row. + */ + rect.height = ALIGN(rect.height, 2); + + /* Datasheet requirement: see register description */ + rect.width = ALIGN(rect.width, 2); + rect.left = ALIGN(rect.left, 2); + + soc_camera_limit_side(&rect.left, &rect.width, + MT9M001_COLUMN_SKIP, MT9M001_MIN_WIDTH, MT9M001_MAX_WIDTH); + + soc_camera_limit_side(&rect.top, &rect.height, + MT9M001_ROW_SKIP, MT9M001_MIN_HEIGHT, MT9M001_MAX_HEIGHT); + + mt9m001->total_h = rect.height + mt9m001->y_skip_top + vblank; + + /* Blanking and start values - default... */ + ret = reg_write(client, MT9M001_HORIZONTAL_BLANKING, hblank); + if (!ret) + ret = reg_write(client, MT9M001_VERTICAL_BLANKING, vblank); + + /* + * The caller provides a supported format, as verified per + * call to .set_fmt(FORMAT_TRY). + */ + if (!ret) + ret = reg_write(client, MT9M001_COLUMN_START, rect.left); + if (!ret) + ret = reg_write(client, MT9M001_ROW_START, rect.top); + if (!ret) + ret = reg_write(client, MT9M001_WINDOW_WIDTH, rect.width - 1); + if (!ret) + ret = reg_write(client, MT9M001_WINDOW_HEIGHT, + rect.height + mt9m001->y_skip_top - 1); + if (!ret && v4l2_ctrl_g_ctrl(mt9m001->autoexposure) == V4L2_EXPOSURE_AUTO) + ret = reg_write(client, MT9M001_SHUTTER_WIDTH, mt9m001->total_h); + + if (!ret) + mt9m001->rect = rect; + + return ret; +} + +static int mt9m001_get_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9m001 *mt9m001 = to_mt9m001(client); + + if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) + return -EINVAL; + + switch (sel->target) { + case V4L2_SEL_TGT_CROP_BOUNDS: + case V4L2_SEL_TGT_CROP_DEFAULT: + sel->r.left = MT9M001_COLUMN_SKIP; + sel->r.top = MT9M001_ROW_SKIP; + sel->r.width = MT9M001_MAX_WIDTH; + sel->r.height = MT9M001_MAX_HEIGHT; + return 0; + case V4L2_SEL_TGT_CROP: + sel->r = mt9m001->rect; + return 0; + default: + return -EINVAL; + } +} + +static int mt9m001_get_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9m001 *mt9m001 = to_mt9m001(client); + struct v4l2_mbus_framefmt *mf = &format->format; + + if (format->pad) + return -EINVAL; + + mf->width = mt9m001->rect.width; + mf->height = mt9m001->rect.height; + mf->code = mt9m001->fmt->code; + mf->colorspace = mt9m001->fmt->colorspace; + mf->field = V4L2_FIELD_NONE; + + return 0; +} + +static int mt9m001_s_fmt(struct v4l2_subdev *sd, + const struct mt9m001_datafmt *fmt, + struct v4l2_mbus_framefmt *mf) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9m001 *mt9m001 = to_mt9m001(client); + struct v4l2_subdev_selection sel = { + .which = V4L2_SUBDEV_FORMAT_ACTIVE, + .target = V4L2_SEL_TGT_CROP, + .r.left = mt9m001->rect.left, + .r.top = mt9m001->rect.top, + .r.width = mf->width, + .r.height = mf->height, + }; + int ret; + + /* No support for scaling so far, just crop. TODO: use skipping */ + ret = mt9m001_set_selection(sd, NULL, &sel); + if (!ret) { + mf->width = mt9m001->rect.width; + mf->height = mt9m001->rect.height; + mt9m001->fmt = fmt; + mf->colorspace = fmt->colorspace; + } + + return ret; +} + +static int mt9m001_set_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct v4l2_mbus_framefmt *mf = &format->format; + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9m001 *mt9m001 = to_mt9m001(client); + const struct mt9m001_datafmt *fmt; + + if (format->pad) + return -EINVAL; + + v4l_bound_align_image(&mf->width, MT9M001_MIN_WIDTH, + MT9M001_MAX_WIDTH, 1, + &mf->height, MT9M001_MIN_HEIGHT + mt9m001->y_skip_top, + MT9M001_MAX_HEIGHT + mt9m001->y_skip_top, 0, 0); + + if (mt9m001->fmts == mt9m001_colour_fmts) + mf->height = ALIGN(mf->height - 1, 2); + + fmt = mt9m001_find_datafmt(mf->code, mt9m001->fmts, + mt9m001->num_fmts); + if (!fmt) { + fmt = mt9m001->fmt; + mf->code = fmt->code; + } + + mf->colorspace = fmt->colorspace; + + if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) + return mt9m001_s_fmt(sd, fmt, mf); + cfg->try_fmt = *mf; + return 0; +} + +#ifdef CONFIG_VIDEO_ADV_DEBUG +static int mt9m001_g_register(struct v4l2_subdev *sd, + struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (reg->reg > 0xff) + return -EINVAL; + + reg->size = 2; + reg->val = reg_read(client, reg->reg); + + if (reg->val > 0xffff) + return -EIO; + + return 0; +} + +static int mt9m001_s_register(struct v4l2_subdev *sd, + const struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (reg->reg > 0xff) + return -EINVAL; + + if (reg_write(client, reg->reg, reg->val) < 0) + return -EIO; + + return 0; +} +#endif + +static int mt9m001_s_power(struct v4l2_subdev *sd, int on) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + struct mt9m001 *mt9m001 = to_mt9m001(client); + + return soc_camera_set_power(&client->dev, ssdd, mt9m001->clk, on); +} + +static int mt9m001_g_volatile_ctrl(struct v4l2_ctrl *ctrl) +{ + struct mt9m001 *mt9m001 = container_of(ctrl->handler, + struct mt9m001, hdl); + s32 min, max; + + switch (ctrl->id) { + case V4L2_CID_EXPOSURE_AUTO: + min = mt9m001->exposure->minimum; + max = mt9m001->exposure->maximum; + mt9m001->exposure->val = + (524 + (mt9m001->total_h - 1) * (max - min)) / 1048 + min; + break; + } + return 0; +} + +static int mt9m001_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct mt9m001 *mt9m001 = container_of(ctrl->handler, + struct mt9m001, hdl); + struct v4l2_subdev *sd = &mt9m001->subdev; + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct v4l2_ctrl *exp = mt9m001->exposure; + int data; + + switch (ctrl->id) { + case V4L2_CID_VFLIP: + if (ctrl->val) + data = reg_set(client, MT9M001_READ_OPTIONS2, 0x8000); + else + data = reg_clear(client, MT9M001_READ_OPTIONS2, 0x8000); + if (data < 0) + return -EIO; + return 0; + + case V4L2_CID_GAIN: + /* See Datasheet Table 7, Gain settings. */ + if (ctrl->val <= ctrl->default_value) { + /* Pack it into 0..1 step 0.125, register values 0..8 */ + unsigned long range = ctrl->default_value - ctrl->minimum; + data = ((ctrl->val - (s32)ctrl->minimum) * 8 + range / 2) / range; + + dev_dbg(&client->dev, "Setting gain %d\n", data); + data = reg_write(client, MT9M001_GLOBAL_GAIN, data); + if (data < 0) + return -EIO; + } else { + /* Pack it into 1.125..15 variable step, register values 9..67 */ + /* We assume qctrl->maximum - qctrl->default_value - 1 > 0 */ + unsigned long range = ctrl->maximum - ctrl->default_value - 1; + unsigned long gain = ((ctrl->val - (s32)ctrl->default_value - 1) * + 111 + range / 2) / range + 9; + + if (gain <= 32) + data = gain; + else if (gain <= 64) + data = ((gain - 32) * 16 + 16) / 32 + 80; + else + data = ((gain - 64) * 7 + 28) / 56 + 96; + + dev_dbg(&client->dev, "Setting gain from %d to %d\n", + reg_read(client, MT9M001_GLOBAL_GAIN), data); + data = reg_write(client, MT9M001_GLOBAL_GAIN, data); + if (data < 0) + return -EIO; + } + return 0; + + case V4L2_CID_EXPOSURE_AUTO: + if (ctrl->val == V4L2_EXPOSURE_MANUAL) { + unsigned long range = exp->maximum - exp->minimum; + unsigned long shutter = ((exp->val - (s32)exp->minimum) * 1048 + + range / 2) / range + 1; + + dev_dbg(&client->dev, + "Setting shutter width from %d to %lu\n", + reg_read(client, MT9M001_SHUTTER_WIDTH), shutter); + if (reg_write(client, MT9M001_SHUTTER_WIDTH, shutter) < 0) + return -EIO; + } else { + const u16 vblank = 25; + + mt9m001->total_h = mt9m001->rect.height + + mt9m001->y_skip_top + vblank; + if (reg_write(client, MT9M001_SHUTTER_WIDTH, mt9m001->total_h) < 0) + return -EIO; + } + return 0; + } + return -EINVAL; +} + +/* + * Interface active, can use i2c. If it fails, it can indeed mean, that + * this wasn't our capture interface, so, we wait for the right one + */ +static int mt9m001_video_probe(struct soc_camera_subdev_desc *ssdd, + struct i2c_client *client) +{ + struct mt9m001 *mt9m001 = to_mt9m001(client); + s32 data; + unsigned long flags; + int ret; + + ret = mt9m001_s_power(&mt9m001->subdev, 1); + if (ret < 0) + return ret; + + /* Enable the chip */ + data = reg_write(client, MT9M001_CHIP_ENABLE, 1); + dev_dbg(&client->dev, "write: %d\n", data); + + /* Read out the chip version register */ + data = reg_read(client, MT9M001_CHIP_VERSION); + + /* must be 0x8411 or 0x8421 for colour sensor and 8431 for bw */ + switch (data) { + case 0x8411: + case 0x8421: + mt9m001->fmts = mt9m001_colour_fmts; + break; + case 0x8431: + mt9m001->fmts = mt9m001_monochrome_fmts; + break; + default: + dev_err(&client->dev, + "No MT9M001 chip detected, register read %x\n", data); + ret = -ENODEV; + goto done; + } + + mt9m001->num_fmts = 0; + + /* + * This is a 10bit sensor, so by default we only allow 10bit. + * The platform may support different bus widths due to + * different routing of the data lines. + */ + if (ssdd->query_bus_param) + flags = ssdd->query_bus_param(ssdd); + else + flags = SOCAM_DATAWIDTH_10; + + if (flags & SOCAM_DATAWIDTH_10) + mt9m001->num_fmts++; + else + mt9m001->fmts++; + + if (flags & SOCAM_DATAWIDTH_8) + mt9m001->num_fmts++; + + mt9m001->fmt = &mt9m001->fmts[0]; + + dev_info(&client->dev, "Detected a MT9M001 chip ID %x (%s)\n", data, + data == 0x8431 ? "C12STM" : "C12ST"); + + ret = mt9m001_init(client); + if (ret < 0) { + dev_err(&client->dev, "Failed to initialise the camera\n"); + goto done; + } + + /* mt9m001_init() has reset the chip, returning registers to defaults */ + ret = v4l2_ctrl_handler_setup(&mt9m001->hdl); + +done: + mt9m001_s_power(&mt9m001->subdev, 0); + return ret; +} + +static void mt9m001_video_remove(struct soc_camera_subdev_desc *ssdd) +{ + if (ssdd->free_bus) + ssdd->free_bus(ssdd); +} + +static int mt9m001_g_skip_top_lines(struct v4l2_subdev *sd, u32 *lines) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9m001 *mt9m001 = to_mt9m001(client); + + *lines = mt9m001->y_skip_top; + + return 0; +} + +static const struct v4l2_ctrl_ops mt9m001_ctrl_ops = { + .g_volatile_ctrl = mt9m001_g_volatile_ctrl, + .s_ctrl = mt9m001_s_ctrl, +}; + +static const struct v4l2_subdev_core_ops mt9m001_subdev_core_ops = { +#ifdef CONFIG_VIDEO_ADV_DEBUG + .g_register = mt9m001_g_register, + .s_register = mt9m001_s_register, +#endif + .s_power = mt9m001_s_power, +}; + +static int mt9m001_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_mbus_code_enum *code) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9m001 *mt9m001 = to_mt9m001(client); + + if (code->pad || code->index >= mt9m001->num_fmts) + return -EINVAL; + + code->code = mt9m001->fmts[code->index].code; + return 0; +} + +static int mt9m001_g_mbus_config(struct v4l2_subdev *sd, + struct v4l2_mbus_config *cfg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + + /* MT9M001 has all capture_format parameters fixed */ + cfg->flags = V4L2_MBUS_PCLK_SAMPLE_FALLING | + V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_HIGH | + V4L2_MBUS_DATA_ACTIVE_HIGH | V4L2_MBUS_MASTER; + cfg->type = V4L2_MBUS_PARALLEL; + cfg->flags = soc_camera_apply_board_flags(ssdd, cfg); + + return 0; +} + +static int mt9m001_s_mbus_config(struct v4l2_subdev *sd, + const struct v4l2_mbus_config *cfg) +{ + const struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + struct mt9m001 *mt9m001 = to_mt9m001(client); + unsigned int bps = soc_mbus_get_fmtdesc(mt9m001->fmt->code)->bits_per_sample; + + if (ssdd->set_bus_param) + return ssdd->set_bus_param(ssdd, 1 << (bps - 1)); + + /* + * Without board specific bus width settings we only support the + * sensors native bus width + */ + return bps == 10 ? 0 : -EINVAL; +} + +static const struct v4l2_subdev_video_ops mt9m001_subdev_video_ops = { + .s_stream = mt9m001_s_stream, + .g_mbus_config = mt9m001_g_mbus_config, + .s_mbus_config = mt9m001_s_mbus_config, +}; + +static const struct v4l2_subdev_sensor_ops mt9m001_subdev_sensor_ops = { + .g_skip_top_lines = mt9m001_g_skip_top_lines, +}; + +static const struct v4l2_subdev_pad_ops mt9m001_subdev_pad_ops = { + .enum_mbus_code = mt9m001_enum_mbus_code, + .get_selection = mt9m001_get_selection, + .set_selection = mt9m001_set_selection, + .get_fmt = mt9m001_get_fmt, + .set_fmt = mt9m001_set_fmt, +}; + +static const struct v4l2_subdev_ops mt9m001_subdev_ops = { + .core = &mt9m001_subdev_core_ops, + .video = &mt9m001_subdev_video_ops, + .sensor = &mt9m001_subdev_sensor_ops, + .pad = &mt9m001_subdev_pad_ops, +}; + +static int mt9m001_probe(struct i2c_client *client, + const struct i2c_device_id *did) +{ + struct mt9m001 *mt9m001; + struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + int ret; + + if (!ssdd) { + dev_err(&client->dev, "MT9M001 driver needs platform data\n"); + return -EINVAL; + } + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) { + dev_warn(&adapter->dev, + "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n"); + return -EIO; + } + + mt9m001 = devm_kzalloc(&client->dev, sizeof(struct mt9m001), GFP_KERNEL); + if (!mt9m001) + return -ENOMEM; + + v4l2_i2c_subdev_init(&mt9m001->subdev, client, &mt9m001_subdev_ops); + v4l2_ctrl_handler_init(&mt9m001->hdl, 4); + v4l2_ctrl_new_std(&mt9m001->hdl, &mt9m001_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 0); + v4l2_ctrl_new_std(&mt9m001->hdl, &mt9m001_ctrl_ops, + V4L2_CID_GAIN, 0, 127, 1, 64); + mt9m001->exposure = v4l2_ctrl_new_std(&mt9m001->hdl, &mt9m001_ctrl_ops, + V4L2_CID_EXPOSURE, 1, 255, 1, 255); + /* + * Simulated autoexposure. If enabled, we calculate shutter width + * ourselves in the driver based on vertical blanking and frame width + */ + mt9m001->autoexposure = v4l2_ctrl_new_std_menu(&mt9m001->hdl, + &mt9m001_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, 1, 0, + V4L2_EXPOSURE_AUTO); + mt9m001->subdev.ctrl_handler = &mt9m001->hdl; + if (mt9m001->hdl.error) + return mt9m001->hdl.error; + + v4l2_ctrl_auto_cluster(2, &mt9m001->autoexposure, + V4L2_EXPOSURE_MANUAL, true); + + /* Second stage probe - when a capture adapter is there */ + mt9m001->y_skip_top = 0; + mt9m001->rect.left = MT9M001_COLUMN_SKIP; + mt9m001->rect.top = MT9M001_ROW_SKIP; + mt9m001->rect.width = MT9M001_MAX_WIDTH; + mt9m001->rect.height = MT9M001_MAX_HEIGHT; + + mt9m001->clk = v4l2_clk_get(&client->dev, "mclk"); + if (IS_ERR(mt9m001->clk)) { + ret = PTR_ERR(mt9m001->clk); + goto eclkget; + } + + ret = mt9m001_video_probe(ssdd, client); + if (ret) { + v4l2_clk_put(mt9m001->clk); +eclkget: + v4l2_ctrl_handler_free(&mt9m001->hdl); + } + + return ret; +} + +static int mt9m001_remove(struct i2c_client *client) +{ + struct mt9m001 *mt9m001 = to_mt9m001(client); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + + v4l2_clk_put(mt9m001->clk); + v4l2_device_unregister_subdev(&mt9m001->subdev); + v4l2_ctrl_handler_free(&mt9m001->hdl); + mt9m001_video_remove(ssdd); + + return 0; +} + +static const struct i2c_device_id mt9m001_id[] = { + { "mt9m001", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, mt9m001_id); + +static struct i2c_driver mt9m001_i2c_driver = { + .driver = { + .name = "mt9m001", + }, + .probe = mt9m001_probe, + .remove = mt9m001_remove, + .id_table = mt9m001_id, +}; + +module_i2c_driver(mt9m001_i2c_driver); + +MODULE_DESCRIPTION("Micron MT9M001 Camera driver"); +MODULE_AUTHOR("Guennadi Liakhovetski <kernel@pengutronix.de>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/i2c/soc_camera/mt9t112.c b/drivers/media/i2c/soc_camera/mt9t112.c new file mode 100644 index 000000000..b53c36dfa --- /dev/null +++ b/drivers/media/i2c/soc_camera/mt9t112.c @@ -0,0 +1,1163 @@ +/* + * mt9t112 Camera Driver + * + * Copyright (C) 2009 Renesas Solutions Corp. + * Kuninori Morimoto <morimoto.kuninori@renesas.com> + * + * Based on ov772x driver, mt9m111 driver, + * + * Copyright (C) 2008 Kuninori Morimoto <morimoto.kuninori@renesas.com> + * Copyright (C) 2008, Robert Jarzmik <robert.jarzmik@free.fr> + * Copyright 2006-7 Jonathan Corbet <corbet@lwn.net> + * Copyright (C) 2008 Magnus Damm + * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/delay.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/v4l2-mediabus.h> +#include <linux/videodev2.h> + +#include <media/i2c/mt9t112.h> +#include <media/soc_camera.h> +#include <media/v4l2-clk.h> +#include <media/v4l2-common.h> +#include <media/v4l2-image-sizes.h> + +/* you can check PLL/clock info */ +/* #define EXT_CLOCK 24000000 */ + +/************************************************************************ + macro +************************************************************************/ +/* + * frame size + */ +#define MAX_WIDTH 2048 +#define MAX_HEIGHT 1536 + +/* + * macro of read/write + */ +#define ECHECKER(ret, x) \ + do { \ + (ret) = (x); \ + if ((ret) < 0) \ + return (ret); \ + } while (0) + +#define mt9t112_reg_write(ret, client, a, b) \ + ECHECKER(ret, __mt9t112_reg_write(client, a, b)) +#define mt9t112_mcu_write(ret, client, a, b) \ + ECHECKER(ret, __mt9t112_mcu_write(client, a, b)) + +#define mt9t112_reg_mask_set(ret, client, a, b, c) \ + ECHECKER(ret, __mt9t112_reg_mask_set(client, a, b, c)) +#define mt9t112_mcu_mask_set(ret, client, a, b, c) \ + ECHECKER(ret, __mt9t112_mcu_mask_set(client, a, b, c)) + +#define mt9t112_reg_read(ret, client, a) \ + ECHECKER(ret, __mt9t112_reg_read(client, a)) + +/* + * Logical address + */ +#define _VAR(id, offset, base) (base | (id & 0x1f) << 10 | (offset & 0x3ff)) +#define VAR(id, offset) _VAR(id, offset, 0x0000) +#define VAR8(id, offset) _VAR(id, offset, 0x8000) + +/************************************************************************ + struct +************************************************************************/ +struct mt9t112_format { + u32 code; + enum v4l2_colorspace colorspace; + u16 fmt; + u16 order; +}; + +struct mt9t112_priv { + struct v4l2_subdev subdev; + struct mt9t112_platform_data *info; + struct i2c_client *client; + struct v4l2_rect frame; + struct v4l2_clk *clk; + const struct mt9t112_format *format; + int num_formats; + u32 flags; +/* for flags */ +#define INIT_DONE (1 << 0) +#define PCLK_RISING (1 << 1) +}; + +/************************************************************************ + supported format +************************************************************************/ + +static const struct mt9t112_format mt9t112_cfmts[] = { + { + .code = MEDIA_BUS_FMT_UYVY8_2X8, + .colorspace = V4L2_COLORSPACE_SRGB, + .fmt = 1, + .order = 0, + }, { + .code = MEDIA_BUS_FMT_VYUY8_2X8, + .colorspace = V4L2_COLORSPACE_SRGB, + .fmt = 1, + .order = 1, + }, { + .code = MEDIA_BUS_FMT_YUYV8_2X8, + .colorspace = V4L2_COLORSPACE_SRGB, + .fmt = 1, + .order = 2, + }, { + .code = MEDIA_BUS_FMT_YVYU8_2X8, + .colorspace = V4L2_COLORSPACE_SRGB, + .fmt = 1, + .order = 3, + }, { + .code = MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE, + .colorspace = V4L2_COLORSPACE_SRGB, + .fmt = 8, + .order = 2, + }, { + .code = MEDIA_BUS_FMT_RGB565_2X8_LE, + .colorspace = V4L2_COLORSPACE_SRGB, + .fmt = 4, + .order = 2, + }, +}; + +/************************************************************************ + general function +************************************************************************/ +static struct mt9t112_priv *to_mt9t112(const struct i2c_client *client) +{ + return container_of(i2c_get_clientdata(client), + struct mt9t112_priv, + subdev); +} + +static int __mt9t112_reg_read(const struct i2c_client *client, u16 command) +{ + struct i2c_msg msg[2]; + u8 buf[2]; + int ret; + + command = swab16(command); + + msg[0].addr = client->addr; + msg[0].flags = 0; + msg[0].len = 2; + msg[0].buf = (u8 *)&command; + + msg[1].addr = client->addr; + msg[1].flags = I2C_M_RD; + msg[1].len = 2; + msg[1].buf = buf; + + /* + * if return value of this function is < 0, + * it mean error. + * else, under 16bit is valid data. + */ + ret = i2c_transfer(client->adapter, msg, 2); + if (ret < 0) + return ret; + + memcpy(&ret, buf, 2); + return swab16(ret); +} + +static int __mt9t112_reg_write(const struct i2c_client *client, + u16 command, u16 data) +{ + struct i2c_msg msg; + u8 buf[4]; + int ret; + + command = swab16(command); + data = swab16(data); + + memcpy(buf + 0, &command, 2); + memcpy(buf + 2, &data, 2); + + msg.addr = client->addr; + msg.flags = 0; + msg.len = 4; + msg.buf = buf; + + /* + * i2c_transfer return message length, + * but this function should return 0 if correct case + */ + ret = i2c_transfer(client->adapter, &msg, 1); + if (ret >= 0) + ret = 0; + + return ret; +} + +static int __mt9t112_reg_mask_set(const struct i2c_client *client, + u16 command, + u16 mask, + u16 set) +{ + int val = __mt9t112_reg_read(client, command); + if (val < 0) + return val; + + val &= ~mask; + val |= set & mask; + + return __mt9t112_reg_write(client, command, val); +} + +/* mcu access */ +static int __mt9t112_mcu_read(const struct i2c_client *client, u16 command) +{ + int ret; + + ret = __mt9t112_reg_write(client, 0x098E, command); + if (ret < 0) + return ret; + + return __mt9t112_reg_read(client, 0x0990); +} + +static int __mt9t112_mcu_write(const struct i2c_client *client, + u16 command, u16 data) +{ + int ret; + + ret = __mt9t112_reg_write(client, 0x098E, command); + if (ret < 0) + return ret; + + return __mt9t112_reg_write(client, 0x0990, data); +} + +static int __mt9t112_mcu_mask_set(const struct i2c_client *client, + u16 command, + u16 mask, + u16 set) +{ + int val = __mt9t112_mcu_read(client, command); + if (val < 0) + return val; + + val &= ~mask; + val |= set & mask; + + return __mt9t112_mcu_write(client, command, val); +} + +static int mt9t112_reset(const struct i2c_client *client) +{ + int ret; + + mt9t112_reg_mask_set(ret, client, 0x001a, 0x0001, 0x0001); + msleep(1); + mt9t112_reg_mask_set(ret, client, 0x001a, 0x0001, 0x0000); + + return ret; +} + +#ifndef EXT_CLOCK +#define CLOCK_INFO(a, b) +#else +#define CLOCK_INFO(a, b) mt9t112_clock_info(a, b) +static int mt9t112_clock_info(const struct i2c_client *client, u32 ext) +{ + int m, n, p1, p2, p3, p4, p5, p6, p7; + u32 vco, clk; + char *enable; + + ext /= 1000; /* kbyte order */ + + mt9t112_reg_read(n, client, 0x0012); + p1 = n & 0x000f; + n = n >> 4; + p2 = n & 0x000f; + n = n >> 4; + p3 = n & 0x000f; + + mt9t112_reg_read(n, client, 0x002a); + p4 = n & 0x000f; + n = n >> 4; + p5 = n & 0x000f; + n = n >> 4; + p6 = n & 0x000f; + + mt9t112_reg_read(n, client, 0x002c); + p7 = n & 0x000f; + + mt9t112_reg_read(n, client, 0x0010); + m = n & 0x00ff; + n = (n >> 8) & 0x003f; + + enable = ((6000 > ext) || (54000 < ext)) ? "X" : ""; + dev_dbg(&client->dev, "EXTCLK : %10u K %s\n", ext, enable); + + vco = 2 * m * ext / (n+1); + enable = ((384000 > vco) || (768000 < vco)) ? "X" : ""; + dev_dbg(&client->dev, "VCO : %10u K %s\n", vco, enable); + + clk = vco / (p1+1) / (p2+1); + enable = (96000 < clk) ? "X" : ""; + dev_dbg(&client->dev, "PIXCLK : %10u K %s\n", clk, enable); + + clk = vco / (p3+1); + enable = (768000 < clk) ? "X" : ""; + dev_dbg(&client->dev, "MIPICLK : %10u K %s\n", clk, enable); + + clk = vco / (p6+1); + enable = (96000 < clk) ? "X" : ""; + dev_dbg(&client->dev, "MCU CLK : %10u K %s\n", clk, enable); + + clk = vco / (p5+1); + enable = (54000 < clk) ? "X" : ""; + dev_dbg(&client->dev, "SOC CLK : %10u K %s\n", clk, enable); + + clk = vco / (p4+1); + enable = (70000 < clk) ? "X" : ""; + dev_dbg(&client->dev, "Sensor CLK : %10u K %s\n", clk, enable); + + clk = vco / (p7+1); + dev_dbg(&client->dev, "External sensor : %10u K\n", clk); + + clk = ext / (n+1); + enable = ((2000 > clk) || (24000 < clk)) ? "X" : ""; + dev_dbg(&client->dev, "PFD : %10u K %s\n", clk, enable); + + return 0; +} +#endif + +static void mt9t112_frame_check(u32 *width, u32 *height, u32 *left, u32 *top) +{ + soc_camera_limit_side(left, width, 0, 0, MAX_WIDTH); + soc_camera_limit_side(top, height, 0, 0, MAX_HEIGHT); +} + +static int mt9t112_set_a_frame_size(const struct i2c_client *client, + u16 width, + u16 height) +{ + int ret; + u16 wstart = (MAX_WIDTH - width) / 2; + u16 hstart = (MAX_HEIGHT - height) / 2; + + /* (Context A) Image Width/Height */ + mt9t112_mcu_write(ret, client, VAR(26, 0), width); + mt9t112_mcu_write(ret, client, VAR(26, 2), height); + + /* (Context A) Output Width/Height */ + mt9t112_mcu_write(ret, client, VAR(18, 43), 8 + width); + mt9t112_mcu_write(ret, client, VAR(18, 45), 8 + height); + + /* (Context A) Start Row/Column */ + mt9t112_mcu_write(ret, client, VAR(18, 2), 4 + hstart); + mt9t112_mcu_write(ret, client, VAR(18, 4), 4 + wstart); + + /* (Context A) End Row/Column */ + mt9t112_mcu_write(ret, client, VAR(18, 6), 11 + height + hstart); + mt9t112_mcu_write(ret, client, VAR(18, 8), 11 + width + wstart); + + mt9t112_mcu_write(ret, client, VAR8(1, 0), 0x06); + + return ret; +} + +static int mt9t112_set_pll_dividers(const struct i2c_client *client, + u8 m, u8 n, + u8 p1, u8 p2, u8 p3, + u8 p4, u8 p5, u8 p6, + u8 p7) +{ + int ret; + u16 val; + + /* N/M */ + val = (n << 8) | + (m << 0); + mt9t112_reg_mask_set(ret, client, 0x0010, 0x3fff, val); + + /* P1/P2/P3 */ + val = ((p3 & 0x0F) << 8) | + ((p2 & 0x0F) << 4) | + ((p1 & 0x0F) << 0); + mt9t112_reg_mask_set(ret, client, 0x0012, 0x0fff, val); + + /* P4/P5/P6 */ + val = (0x7 << 12) | + ((p6 & 0x0F) << 8) | + ((p5 & 0x0F) << 4) | + ((p4 & 0x0F) << 0); + mt9t112_reg_mask_set(ret, client, 0x002A, 0x7fff, val); + + /* P7 */ + val = (0x1 << 12) | + ((p7 & 0x0F) << 0); + mt9t112_reg_mask_set(ret, client, 0x002C, 0x100f, val); + + return ret; +} + +static int mt9t112_init_pll(const struct i2c_client *client) +{ + struct mt9t112_priv *priv = to_mt9t112(client); + int data, i, ret; + + mt9t112_reg_mask_set(ret, client, 0x0014, 0x003, 0x0001); + + /* PLL control: BYPASS PLL = 8517 */ + mt9t112_reg_write(ret, client, 0x0014, 0x2145); + + /* Replace these registers when new timing parameters are generated */ + mt9t112_set_pll_dividers(client, + priv->info->divider.m, + priv->info->divider.n, + priv->info->divider.p1, + priv->info->divider.p2, + priv->info->divider.p3, + priv->info->divider.p4, + priv->info->divider.p5, + priv->info->divider.p6, + priv->info->divider.p7); + + /* + * TEST_BYPASS on + * PLL_ENABLE on + * SEL_LOCK_DET on + * TEST_BYPASS off + */ + mt9t112_reg_write(ret, client, 0x0014, 0x2525); + mt9t112_reg_write(ret, client, 0x0014, 0x2527); + mt9t112_reg_write(ret, client, 0x0014, 0x3427); + mt9t112_reg_write(ret, client, 0x0014, 0x3027); + + mdelay(10); + + /* + * PLL_BYPASS off + * Reference clock count + * I2C Master Clock Divider + */ + mt9t112_reg_write(ret, client, 0x0014, 0x3046); + mt9t112_reg_write(ret, client, 0x0016, 0x0400); /* JPEG initialization workaround */ + mt9t112_reg_write(ret, client, 0x0022, 0x0190); + mt9t112_reg_write(ret, client, 0x3B84, 0x0212); + + /* External sensor clock is PLL bypass */ + mt9t112_reg_write(ret, client, 0x002E, 0x0500); + + mt9t112_reg_mask_set(ret, client, 0x0018, 0x0002, 0x0002); + mt9t112_reg_mask_set(ret, client, 0x3B82, 0x0004, 0x0004); + + /* MCU disabled */ + mt9t112_reg_mask_set(ret, client, 0x0018, 0x0004, 0x0004); + + /* out of standby */ + mt9t112_reg_mask_set(ret, client, 0x0018, 0x0001, 0); + + mdelay(50); + + /* + * Standby Workaround + * Disable Secondary I2C Pads + */ + mt9t112_reg_write(ret, client, 0x0614, 0x0001); + mdelay(1); + mt9t112_reg_write(ret, client, 0x0614, 0x0001); + mdelay(1); + mt9t112_reg_write(ret, client, 0x0614, 0x0001); + mdelay(1); + mt9t112_reg_write(ret, client, 0x0614, 0x0001); + mdelay(1); + mt9t112_reg_write(ret, client, 0x0614, 0x0001); + mdelay(1); + mt9t112_reg_write(ret, client, 0x0614, 0x0001); + mdelay(1); + + /* poll to verify out of standby. Must Poll this bit */ + for (i = 0; i < 100; i++) { + mt9t112_reg_read(data, client, 0x0018); + if (!(0x4000 & data)) + break; + + mdelay(10); + } + + return ret; +} + +static int mt9t112_init_setting(const struct i2c_client *client) +{ + + int ret; + + /* Adaptive Output Clock (A) */ + mt9t112_mcu_mask_set(ret, client, VAR(26, 160), 0x0040, 0x0000); + + /* Read Mode (A) */ + mt9t112_mcu_write(ret, client, VAR(18, 12), 0x0024); + + /* Fine Correction (A) */ + mt9t112_mcu_write(ret, client, VAR(18, 15), 0x00CC); + + /* Fine IT Min (A) */ + mt9t112_mcu_write(ret, client, VAR(18, 17), 0x01f1); + + /* Fine IT Max Margin (A) */ + mt9t112_mcu_write(ret, client, VAR(18, 19), 0x00fF); + + /* Base Frame Lines (A) */ + mt9t112_mcu_write(ret, client, VAR(18, 29), 0x032D); + + /* Min Line Length (A) */ + mt9t112_mcu_write(ret, client, VAR(18, 31), 0x073a); + + /* Line Length (A) */ + mt9t112_mcu_write(ret, client, VAR(18, 37), 0x07d0); + + /* Adaptive Output Clock (B) */ + mt9t112_mcu_mask_set(ret, client, VAR(27, 160), 0x0040, 0x0000); + + /* Row Start (B) */ + mt9t112_mcu_write(ret, client, VAR(18, 74), 0x004); + + /* Column Start (B) */ + mt9t112_mcu_write(ret, client, VAR(18, 76), 0x004); + + /* Row End (B) */ + mt9t112_mcu_write(ret, client, VAR(18, 78), 0x60B); + + /* Column End (B) */ + mt9t112_mcu_write(ret, client, VAR(18, 80), 0x80B); + + /* Fine Correction (B) */ + mt9t112_mcu_write(ret, client, VAR(18, 87), 0x008C); + + /* Fine IT Min (B) */ + mt9t112_mcu_write(ret, client, VAR(18, 89), 0x01F1); + + /* Fine IT Max Margin (B) */ + mt9t112_mcu_write(ret, client, VAR(18, 91), 0x00FF); + + /* Base Frame Lines (B) */ + mt9t112_mcu_write(ret, client, VAR(18, 101), 0x0668); + + /* Min Line Length (B) */ + mt9t112_mcu_write(ret, client, VAR(18, 103), 0x0AF0); + + /* Line Length (B) */ + mt9t112_mcu_write(ret, client, VAR(18, 109), 0x0AF0); + + /* + * Flicker Dectection registers + * This section should be replaced whenever new Timing file is generated + * All the following registers need to be replaced + * Following registers are generated from Register Wizard but user can + * modify them. For detail see auto flicker detection tuning + */ + + /* FD_FDPERIOD_SELECT */ + mt9t112_mcu_write(ret, client, VAR8(8, 5), 0x01); + + /* PRI_B_CONFIG_FD_ALGO_RUN */ + mt9t112_mcu_write(ret, client, VAR(27, 17), 0x0003); + + /* PRI_A_CONFIG_FD_ALGO_RUN */ + mt9t112_mcu_write(ret, client, VAR(26, 17), 0x0003); + + /* + * AFD range detection tuning registers + */ + + /* search_f1_50 */ + mt9t112_mcu_write(ret, client, VAR8(18, 165), 0x25); + + /* search_f2_50 */ + mt9t112_mcu_write(ret, client, VAR8(18, 166), 0x28); + + /* search_f1_60 */ + mt9t112_mcu_write(ret, client, VAR8(18, 167), 0x2C); + + /* search_f2_60 */ + mt9t112_mcu_write(ret, client, VAR8(18, 168), 0x2F); + + /* period_50Hz (A) */ + mt9t112_mcu_write(ret, client, VAR8(18, 68), 0xBA); + + /* secret register by aptina */ + /* period_50Hz (A MSB) */ + mt9t112_mcu_write(ret, client, VAR8(18, 303), 0x00); + + /* period_60Hz (A) */ + mt9t112_mcu_write(ret, client, VAR8(18, 69), 0x9B); + + /* secret register by aptina */ + /* period_60Hz (A MSB) */ + mt9t112_mcu_write(ret, client, VAR8(18, 301), 0x00); + + /* period_50Hz (B) */ + mt9t112_mcu_write(ret, client, VAR8(18, 140), 0x82); + + /* secret register by aptina */ + /* period_50Hz (B) MSB */ + mt9t112_mcu_write(ret, client, VAR8(18, 304), 0x00); + + /* period_60Hz (B) */ + mt9t112_mcu_write(ret, client, VAR8(18, 141), 0x6D); + + /* secret register by aptina */ + /* period_60Hz (B) MSB */ + mt9t112_mcu_write(ret, client, VAR8(18, 302), 0x00); + + /* FD Mode */ + mt9t112_mcu_write(ret, client, VAR8(8, 2), 0x10); + + /* Stat_min */ + mt9t112_mcu_write(ret, client, VAR8(8, 9), 0x02); + + /* Stat_max */ + mt9t112_mcu_write(ret, client, VAR8(8, 10), 0x03); + + /* Min_amplitude */ + mt9t112_mcu_write(ret, client, VAR8(8, 12), 0x0A); + + /* RX FIFO Watermark (A) */ + mt9t112_mcu_write(ret, client, VAR(18, 70), 0x0014); + + /* RX FIFO Watermark (B) */ + mt9t112_mcu_write(ret, client, VAR(18, 142), 0x0014); + + /* MCLK: 16MHz + * PCLK: 73MHz + * CorePixCLK: 36.5 MHz + */ + mt9t112_mcu_write(ret, client, VAR8(18, 0x0044), 133); + mt9t112_mcu_write(ret, client, VAR8(18, 0x0045), 110); + mt9t112_mcu_write(ret, client, VAR8(18, 0x008c), 130); + mt9t112_mcu_write(ret, client, VAR8(18, 0x008d), 108); + + mt9t112_mcu_write(ret, client, VAR8(18, 0x00A5), 27); + mt9t112_mcu_write(ret, client, VAR8(18, 0x00a6), 30); + mt9t112_mcu_write(ret, client, VAR8(18, 0x00a7), 32); + mt9t112_mcu_write(ret, client, VAR8(18, 0x00a8), 35); + + return ret; +} + +static int mt9t112_auto_focus_setting(const struct i2c_client *client) +{ + int ret; + + mt9t112_mcu_write(ret, client, VAR(12, 13), 0x000F); + mt9t112_mcu_write(ret, client, VAR(12, 23), 0x0F0F); + mt9t112_mcu_write(ret, client, VAR8(1, 0), 0x06); + + mt9t112_reg_write(ret, client, 0x0614, 0x0000); + + mt9t112_mcu_write(ret, client, VAR8(1, 0), 0x05); + mt9t112_mcu_write(ret, client, VAR8(12, 2), 0x02); + mt9t112_mcu_write(ret, client, VAR(12, 3), 0x0002); + mt9t112_mcu_write(ret, client, VAR(17, 3), 0x8001); + mt9t112_mcu_write(ret, client, VAR(17, 11), 0x0025); + mt9t112_mcu_write(ret, client, VAR(17, 13), 0x0193); + mt9t112_mcu_write(ret, client, VAR8(17, 33), 0x18); + mt9t112_mcu_write(ret, client, VAR8(1, 0), 0x05); + + return ret; +} + +static int mt9t112_auto_focus_trigger(const struct i2c_client *client) +{ + int ret; + + mt9t112_mcu_write(ret, client, VAR8(12, 25), 0x01); + + return ret; +} + +static int mt9t112_init_camera(const struct i2c_client *client) +{ + int ret; + + ECHECKER(ret, mt9t112_reset(client)); + + ECHECKER(ret, mt9t112_init_pll(client)); + + ECHECKER(ret, mt9t112_init_setting(client)); + + ECHECKER(ret, mt9t112_auto_focus_setting(client)); + + mt9t112_reg_mask_set(ret, client, 0x0018, 0x0004, 0); + + /* Analog setting B */ + mt9t112_reg_write(ret, client, 0x3084, 0x2409); + mt9t112_reg_write(ret, client, 0x3092, 0x0A49); + mt9t112_reg_write(ret, client, 0x3094, 0x4949); + mt9t112_reg_write(ret, client, 0x3096, 0x4950); + + /* + * Disable adaptive clock + * PRI_A_CONFIG_JPEG_OB_TX_CONTROL_VAR + * PRI_B_CONFIG_JPEG_OB_TX_CONTROL_VAR + */ + mt9t112_mcu_write(ret, client, VAR(26, 160), 0x0A2E); + mt9t112_mcu_write(ret, client, VAR(27, 160), 0x0A2E); + + /* Configure STatus in Status_before_length Format and enable header */ + /* PRI_B_CONFIG_JPEG_OB_TX_CONTROL_VAR */ + mt9t112_mcu_write(ret, client, VAR(27, 144), 0x0CB4); + + /* Enable JPEG in context B */ + /* PRI_B_CONFIG_JPEG_OB_TX_CONTROL_VAR */ + mt9t112_mcu_write(ret, client, VAR8(27, 142), 0x01); + + /* Disable Dac_TXLO */ + mt9t112_reg_write(ret, client, 0x316C, 0x350F); + + /* Set max slew rates */ + mt9t112_reg_write(ret, client, 0x1E, 0x777); + + return ret; +} + +/************************************************************************ + v4l2_subdev_core_ops +************************************************************************/ + +#ifdef CONFIG_VIDEO_ADV_DEBUG +static int mt9t112_g_register(struct v4l2_subdev *sd, + struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + int ret; + + reg->size = 2; + mt9t112_reg_read(ret, client, reg->reg); + + reg->val = (__u64)ret; + + return 0; +} + +static int mt9t112_s_register(struct v4l2_subdev *sd, + const struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + int ret; + + mt9t112_reg_write(ret, client, reg->reg, reg->val); + + return ret; +} +#endif + +static int mt9t112_s_power(struct v4l2_subdev *sd, int on) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + struct mt9t112_priv *priv = to_mt9t112(client); + + return soc_camera_set_power(&client->dev, ssdd, priv->clk, on); +} + +static const struct v4l2_subdev_core_ops mt9t112_subdev_core_ops = { +#ifdef CONFIG_VIDEO_ADV_DEBUG + .g_register = mt9t112_g_register, + .s_register = mt9t112_s_register, +#endif + .s_power = mt9t112_s_power, +}; + + +/************************************************************************ + v4l2_subdev_video_ops +************************************************************************/ +static int mt9t112_s_stream(struct v4l2_subdev *sd, int enable) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9t112_priv *priv = to_mt9t112(client); + int ret = 0; + + if (!enable) { + /* FIXME + * + * If user selected large output size, + * and used it long time, + * mt9t112 camera will be very warm. + * + * But current driver can not stop mt9t112 camera. + * So, set small size here to solve this problem. + */ + mt9t112_set_a_frame_size(client, VGA_WIDTH, VGA_HEIGHT); + return ret; + } + + if (!(priv->flags & INIT_DONE)) { + u16 param = PCLK_RISING & priv->flags ? 0x0001 : 0x0000; + + ECHECKER(ret, mt9t112_init_camera(client)); + + /* Invert PCLK (Data sampled on falling edge of pixclk) */ + mt9t112_reg_write(ret, client, 0x3C20, param); + + mdelay(5); + + priv->flags |= INIT_DONE; + } + + mt9t112_mcu_write(ret, client, VAR(26, 7), priv->format->fmt); + mt9t112_mcu_write(ret, client, VAR(26, 9), priv->format->order); + mt9t112_mcu_write(ret, client, VAR8(1, 0), 0x06); + + mt9t112_set_a_frame_size(client, + priv->frame.width, + priv->frame.height); + + ECHECKER(ret, mt9t112_auto_focus_trigger(client)); + + dev_dbg(&client->dev, "format : %d\n", priv->format->code); + dev_dbg(&client->dev, "size : %d x %d\n", + priv->frame.width, + priv->frame.height); + + CLOCK_INFO(client, EXT_CLOCK); + + return ret; +} + +static int mt9t112_set_params(struct mt9t112_priv *priv, + const struct v4l2_rect *rect, + u32 code) +{ + int i; + + /* + * get color format + */ + for (i = 0; i < priv->num_formats; i++) + if (mt9t112_cfmts[i].code == code) + break; + + if (i == priv->num_formats) + return -EINVAL; + + priv->frame = *rect; + + /* + * frame size check + */ + mt9t112_frame_check(&priv->frame.width, &priv->frame.height, + &priv->frame.left, &priv->frame.top); + + priv->format = mt9t112_cfmts + i; + + return 0; +} + +static int mt9t112_get_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9t112_priv *priv = to_mt9t112(client); + + if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) + return -EINVAL; + + switch (sel->target) { + case V4L2_SEL_TGT_CROP_BOUNDS: + sel->r.left = 0; + sel->r.top = 0; + sel->r.width = MAX_WIDTH; + sel->r.height = MAX_HEIGHT; + return 0; + case V4L2_SEL_TGT_CROP_DEFAULT: + sel->r.left = 0; + sel->r.top = 0; + sel->r.width = VGA_WIDTH; + sel->r.height = VGA_HEIGHT; + return 0; + case V4L2_SEL_TGT_CROP: + sel->r = priv->frame; + return 0; + default: + return -EINVAL; + } +} + +static int mt9t112_set_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9t112_priv *priv = to_mt9t112(client); + const struct v4l2_rect *rect = &sel->r; + + if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE || + sel->target != V4L2_SEL_TGT_CROP) + return -EINVAL; + + return mt9t112_set_params(priv, rect, priv->format->code); +} + +static int mt9t112_get_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct v4l2_mbus_framefmt *mf = &format->format; + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9t112_priv *priv = to_mt9t112(client); + + if (format->pad) + return -EINVAL; + + mf->width = priv->frame.width; + mf->height = priv->frame.height; + mf->colorspace = priv->format->colorspace; + mf->code = priv->format->code; + mf->field = V4L2_FIELD_NONE; + + return 0; +} + +static int mt9t112_s_fmt(struct v4l2_subdev *sd, + struct v4l2_mbus_framefmt *mf) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9t112_priv *priv = to_mt9t112(client); + struct v4l2_rect rect = { + .width = mf->width, + .height = mf->height, + .left = priv->frame.left, + .top = priv->frame.top, + }; + int ret; + + ret = mt9t112_set_params(priv, &rect, mf->code); + + if (!ret) + mf->colorspace = priv->format->colorspace; + + return ret; +} + +static int mt9t112_set_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct v4l2_mbus_framefmt *mf = &format->format; + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9t112_priv *priv = to_mt9t112(client); + unsigned int top, left; + int i; + + if (format->pad) + return -EINVAL; + + for (i = 0; i < priv->num_formats; i++) + if (mt9t112_cfmts[i].code == mf->code) + break; + + if (i == priv->num_formats) { + mf->code = MEDIA_BUS_FMT_UYVY8_2X8; + mf->colorspace = V4L2_COLORSPACE_JPEG; + } else { + mf->colorspace = mt9t112_cfmts[i].colorspace; + } + + mt9t112_frame_check(&mf->width, &mf->height, &left, &top); + + mf->field = V4L2_FIELD_NONE; + + if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) + return mt9t112_s_fmt(sd, mf); + cfg->try_fmt = *mf; + return 0; +} + +static int mt9t112_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_mbus_code_enum *code) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9t112_priv *priv = to_mt9t112(client); + + if (code->pad || code->index >= priv->num_formats) + return -EINVAL; + + code->code = mt9t112_cfmts[code->index].code; + + return 0; +} + +static int mt9t112_g_mbus_config(struct v4l2_subdev *sd, + struct v4l2_mbus_config *cfg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + + cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_VSYNC_ACTIVE_HIGH | + V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_DATA_ACTIVE_HIGH | + V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING; + cfg->type = V4L2_MBUS_PARALLEL; + cfg->flags = soc_camera_apply_board_flags(ssdd, cfg); + + return 0; +} + +static int mt9t112_s_mbus_config(struct v4l2_subdev *sd, + const struct v4l2_mbus_config *cfg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + struct mt9t112_priv *priv = to_mt9t112(client); + + if (soc_camera_apply_board_flags(ssdd, cfg) & V4L2_MBUS_PCLK_SAMPLE_RISING) + priv->flags |= PCLK_RISING; + + return 0; +} + +static const struct v4l2_subdev_video_ops mt9t112_subdev_video_ops = { + .s_stream = mt9t112_s_stream, + .g_mbus_config = mt9t112_g_mbus_config, + .s_mbus_config = mt9t112_s_mbus_config, +}; + +static const struct v4l2_subdev_pad_ops mt9t112_subdev_pad_ops = { + .enum_mbus_code = mt9t112_enum_mbus_code, + .get_selection = mt9t112_get_selection, + .set_selection = mt9t112_set_selection, + .get_fmt = mt9t112_get_fmt, + .set_fmt = mt9t112_set_fmt, +}; + +/************************************************************************ + i2c driver +************************************************************************/ +static const struct v4l2_subdev_ops mt9t112_subdev_ops = { + .core = &mt9t112_subdev_core_ops, + .video = &mt9t112_subdev_video_ops, + .pad = &mt9t112_subdev_pad_ops, +}; + +static int mt9t112_camera_probe(struct i2c_client *client) +{ + struct mt9t112_priv *priv = to_mt9t112(client); + const char *devname; + int chipid; + int ret; + + ret = mt9t112_s_power(&priv->subdev, 1); + if (ret < 0) + return ret; + + /* + * check and show chip ID + */ + mt9t112_reg_read(chipid, client, 0x0000); + + switch (chipid) { + case 0x2680: + devname = "mt9t111"; + priv->num_formats = 1; + break; + case 0x2682: + devname = "mt9t112"; + priv->num_formats = ARRAY_SIZE(mt9t112_cfmts); + break; + default: + dev_err(&client->dev, "Product ID error %04x\n", chipid); + ret = -ENODEV; + goto done; + } + + dev_info(&client->dev, "%s chip ID %04x\n", devname, chipid); + +done: + mt9t112_s_power(&priv->subdev, 0); + return ret; +} + +static int mt9t112_probe(struct i2c_client *client, + const struct i2c_device_id *did) +{ + struct mt9t112_priv *priv; + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + struct v4l2_rect rect = { + .width = VGA_WIDTH, + .height = VGA_HEIGHT, + .left = (MAX_WIDTH - VGA_WIDTH) / 2, + .top = (MAX_HEIGHT - VGA_HEIGHT) / 2, + }; + int ret; + + if (!ssdd || !ssdd->drv_priv) { + dev_err(&client->dev, "mt9t112: missing platform data!\n"); + return -EINVAL; + } + + priv = devm_kzalloc(&client->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->info = ssdd->drv_priv; + + v4l2_i2c_subdev_init(&priv->subdev, client, &mt9t112_subdev_ops); + + priv->clk = v4l2_clk_get(&client->dev, "mclk"); + if (IS_ERR(priv->clk)) + return PTR_ERR(priv->clk); + + ret = mt9t112_camera_probe(client); + + /* Cannot fail: using the default supported pixel code */ + if (!ret) + mt9t112_set_params(priv, &rect, MEDIA_BUS_FMT_UYVY8_2X8); + else + v4l2_clk_put(priv->clk); + + return ret; +} + +static int mt9t112_remove(struct i2c_client *client) +{ + struct mt9t112_priv *priv = to_mt9t112(client); + + v4l2_clk_put(priv->clk); + return 0; +} + +static const struct i2c_device_id mt9t112_id[] = { + { "mt9t112", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, mt9t112_id); + +static struct i2c_driver mt9t112_i2c_driver = { + .driver = { + .name = "mt9t112", + }, + .probe = mt9t112_probe, + .remove = mt9t112_remove, + .id_table = mt9t112_id, +}; + +module_i2c_driver(mt9t112_i2c_driver); + +MODULE_DESCRIPTION("SoC Camera driver for mt9t112"); +MODULE_AUTHOR("Kuninori Morimoto"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/media/i2c/soc_camera/mt9v022.c b/drivers/media/i2c/soc_camera/mt9v022.c new file mode 100644 index 000000000..762f06919 --- /dev/null +++ b/drivers/media/i2c/soc_camera/mt9v022.c @@ -0,0 +1,1013 @@ +/* + * Driver for MT9V022 CMOS Image Sensor from Micron + * + * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/videodev2.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include <linux/delay.h> +#include <linux/log2.h> +#include <linux/module.h> + +#include <media/i2c/mt9v022.h> +#include <media/soc_camera.h> +#include <media/drv-intf/soc_mediabus.h> +#include <media/v4l2-subdev.h> +#include <media/v4l2-clk.h> +#include <media/v4l2-ctrls.h> + +/* + * mt9v022 i2c address 0x48, 0x4c, 0x58, 0x5c + * The platform has to define struct i2c_board_info objects and link to them + * from struct soc_camera_host_desc + */ + +static char *sensor_type; +module_param(sensor_type, charp, S_IRUGO); +MODULE_PARM_DESC(sensor_type, "Sensor type: \"colour\" or \"monochrome\""); + +/* mt9v022 selected register addresses */ +#define MT9V022_CHIP_VERSION 0x00 +#define MT9V022_COLUMN_START 0x01 +#define MT9V022_ROW_START 0x02 +#define MT9V022_WINDOW_HEIGHT 0x03 +#define MT9V022_WINDOW_WIDTH 0x04 +#define MT9V022_HORIZONTAL_BLANKING 0x05 +#define MT9V022_VERTICAL_BLANKING 0x06 +#define MT9V022_CHIP_CONTROL 0x07 +#define MT9V022_SHUTTER_WIDTH1 0x08 +#define MT9V022_SHUTTER_WIDTH2 0x09 +#define MT9V022_SHUTTER_WIDTH_CTRL 0x0a +#define MT9V022_TOTAL_SHUTTER_WIDTH 0x0b +#define MT9V022_RESET 0x0c +#define MT9V022_READ_MODE 0x0d +#define MT9V022_MONITOR_MODE 0x0e +#define MT9V022_PIXEL_OPERATION_MODE 0x0f +#define MT9V022_LED_OUT_CONTROL 0x1b +#define MT9V022_ADC_MODE_CONTROL 0x1c +#define MT9V022_REG32 0x20 +#define MT9V022_ANALOG_GAIN 0x35 +#define MT9V022_BLACK_LEVEL_CALIB_CTRL 0x47 +#define MT9V022_PIXCLK_FV_LV 0x74 +#define MT9V022_DIGITAL_TEST_PATTERN 0x7f +#define MT9V022_AEC_AGC_ENABLE 0xAF +#define MT9V022_MAX_TOTAL_SHUTTER_WIDTH 0xBD + +/* mt9v024 partial list register addresses changes with respect to mt9v022 */ +#define MT9V024_PIXCLK_FV_LV 0x72 +#define MT9V024_MAX_TOTAL_SHUTTER_WIDTH 0xAD + +/* Progressive scan, master, defaults */ +#define MT9V022_CHIP_CONTROL_DEFAULT 0x188 + +#define MT9V022_MAX_WIDTH 752 +#define MT9V022_MAX_HEIGHT 480 +#define MT9V022_MIN_WIDTH 48 +#define MT9V022_MIN_HEIGHT 32 +#define MT9V022_COLUMN_SKIP 1 +#define MT9V022_ROW_SKIP 4 + +#define MT9V022_HORIZONTAL_BLANKING_MIN 43 +#define MT9V022_HORIZONTAL_BLANKING_MAX 1023 +#define MT9V022_HORIZONTAL_BLANKING_DEF 94 +#define MT9V022_VERTICAL_BLANKING_MIN 2 +#define MT9V022_VERTICAL_BLANKING_MAX 3000 +#define MT9V022_VERTICAL_BLANKING_DEF 45 + +#define is_mt9v022_rev3(id) (id == 0x1313) +#define is_mt9v024(id) (id == 0x1324) + +/* MT9V022 has only one fixed colorspace per pixelcode */ +struct mt9v022_datafmt { + u32 code; + enum v4l2_colorspace colorspace; +}; + +/* Find a data format by a pixel code in an array */ +static const struct mt9v022_datafmt *mt9v022_find_datafmt( + u32 code, const struct mt9v022_datafmt *fmt, + int n) +{ + int i; + for (i = 0; i < n; i++) + if (fmt[i].code == code) + return fmt + i; + + return NULL; +} + +static const struct mt9v022_datafmt mt9v022_colour_fmts[] = { + /* + * Order important: first natively supported, + * second supported with a GPIO extender + */ + {MEDIA_BUS_FMT_SBGGR10_1X10, V4L2_COLORSPACE_SRGB}, + {MEDIA_BUS_FMT_SBGGR8_1X8, V4L2_COLORSPACE_SRGB}, +}; + +static const struct mt9v022_datafmt mt9v022_monochrome_fmts[] = { + /* Order important - see above */ + {MEDIA_BUS_FMT_Y10_1X10, V4L2_COLORSPACE_JPEG}, + {MEDIA_BUS_FMT_Y8_1X8, V4L2_COLORSPACE_JPEG}, +}; + +/* only registers with different addresses on different mt9v02x sensors */ +struct mt9v02x_register { + u8 max_total_shutter_width; + u8 pixclk_fv_lv; +}; + +static const struct mt9v02x_register mt9v022_register = { + .max_total_shutter_width = MT9V022_MAX_TOTAL_SHUTTER_WIDTH, + .pixclk_fv_lv = MT9V022_PIXCLK_FV_LV, +}; + +static const struct mt9v02x_register mt9v024_register = { + .max_total_shutter_width = MT9V024_MAX_TOTAL_SHUTTER_WIDTH, + .pixclk_fv_lv = MT9V024_PIXCLK_FV_LV, +}; + +enum mt9v022_model { + MT9V022IX7ATM, + MT9V022IX7ATC, +}; + +struct mt9v022 { + struct v4l2_subdev subdev; + struct v4l2_ctrl_handler hdl; + struct { + /* exposure/auto-exposure cluster */ + struct v4l2_ctrl *autoexposure; + struct v4l2_ctrl *exposure; + }; + struct { + /* gain/auto-gain cluster */ + struct v4l2_ctrl *autogain; + struct v4l2_ctrl *gain; + }; + struct v4l2_ctrl *hblank; + struct v4l2_ctrl *vblank; + struct v4l2_rect rect; /* Sensor window */ + struct v4l2_clk *clk; + const struct mt9v022_datafmt *fmt; + const struct mt9v022_datafmt *fmts; + const struct mt9v02x_register *reg; + int num_fmts; + enum mt9v022_model model; + u16 chip_control; + u16 chip_version; + unsigned short y_skip_top; /* Lines to skip at the top */ +}; + +static struct mt9v022 *to_mt9v022(const struct i2c_client *client) +{ + return container_of(i2c_get_clientdata(client), struct mt9v022, subdev); +} + +static int reg_read(struct i2c_client *client, const u8 reg) +{ + return i2c_smbus_read_word_swapped(client, reg); +} + +static int reg_write(struct i2c_client *client, const u8 reg, + const u16 data) +{ + return i2c_smbus_write_word_swapped(client, reg, data); +} + +static int reg_set(struct i2c_client *client, const u8 reg, + const u16 data) +{ + int ret; + + ret = reg_read(client, reg); + if (ret < 0) + return ret; + return reg_write(client, reg, ret | data); +} + +static int reg_clear(struct i2c_client *client, const u8 reg, + const u16 data) +{ + int ret; + + ret = reg_read(client, reg); + if (ret < 0) + return ret; + return reg_write(client, reg, ret & ~data); +} + +static int mt9v022_init(struct i2c_client *client) +{ + struct mt9v022 *mt9v022 = to_mt9v022(client); + int ret; + + /* + * Almost the default mode: master, parallel, simultaneous, and an + * undocumented bit 0x200, which is present in table 7, but not in 8, + * plus snapshot mode to disable scan for now + */ + mt9v022->chip_control |= 0x10; + ret = reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control); + if (!ret) + ret = reg_write(client, MT9V022_READ_MODE, 0x300); + + /* All defaults */ + if (!ret) + /* AEC, AGC on */ + ret = reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x3); + if (!ret) + ret = reg_write(client, MT9V022_ANALOG_GAIN, 16); + if (!ret) + ret = reg_write(client, MT9V022_TOTAL_SHUTTER_WIDTH, 480); + if (!ret) + ret = reg_write(client, mt9v022->reg->max_total_shutter_width, 480); + if (!ret) + /* default - auto */ + ret = reg_clear(client, MT9V022_BLACK_LEVEL_CALIB_CTRL, 1); + if (!ret) + ret = reg_write(client, MT9V022_DIGITAL_TEST_PATTERN, 0); + if (!ret) + return v4l2_ctrl_handler_setup(&mt9v022->hdl); + + return ret; +} + +static int mt9v022_s_stream(struct v4l2_subdev *sd, int enable) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9v022 *mt9v022 = to_mt9v022(client); + + if (enable) { + /* Switch to master "normal" mode */ + mt9v022->chip_control &= ~0x10; + if (is_mt9v022_rev3(mt9v022->chip_version) || + is_mt9v024(mt9v022->chip_version)) { + /* + * Unset snapshot mode specific settings: clear bit 9 + * and bit 2 in reg. 0x20 when in normal mode. + */ + if (reg_clear(client, MT9V022_REG32, 0x204)) + return -EIO; + } + } else { + /* Switch to snapshot mode */ + mt9v022->chip_control |= 0x10; + if (is_mt9v022_rev3(mt9v022->chip_version) || + is_mt9v024(mt9v022->chip_version)) { + /* + * Required settings for snapshot mode: set bit 9 + * (RST enable) and bit 2 (CR enable) in reg. 0x20 + * See TechNote TN0960 or TN-09-225. + */ + if (reg_set(client, MT9V022_REG32, 0x204)) + return -EIO; + } + } + + if (reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control) < 0) + return -EIO; + return 0; +} + +static int mt9v022_set_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9v022 *mt9v022 = to_mt9v022(client); + struct v4l2_rect rect = sel->r; + int min_row, min_blank; + int ret; + + if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE || + sel->target != V4L2_SEL_TGT_CROP) + return -EINVAL; + + /* Bayer format - even size lengths */ + if (mt9v022->fmts == mt9v022_colour_fmts) { + rect.width = ALIGN(rect.width, 2); + rect.height = ALIGN(rect.height, 2); + /* Let the user play with the starting pixel */ + } + + soc_camera_limit_side(&rect.left, &rect.width, + MT9V022_COLUMN_SKIP, MT9V022_MIN_WIDTH, MT9V022_MAX_WIDTH); + + soc_camera_limit_side(&rect.top, &rect.height, + MT9V022_ROW_SKIP, MT9V022_MIN_HEIGHT, MT9V022_MAX_HEIGHT); + + /* Like in example app. Contradicts the datasheet though */ + ret = reg_read(client, MT9V022_AEC_AGC_ENABLE); + if (ret >= 0) { + if (ret & 1) /* Autoexposure */ + ret = reg_write(client, mt9v022->reg->max_total_shutter_width, + rect.height + mt9v022->y_skip_top + 43); + /* + * If autoexposure is off, there is no need to set + * MT9V022_TOTAL_SHUTTER_WIDTH here. Autoexposure can be off + * only if the user has set exposure manually, using the + * V4L2_CID_EXPOSURE_AUTO with the value V4L2_EXPOSURE_MANUAL. + * In this case the register MT9V022_TOTAL_SHUTTER_WIDTH + * already contains the correct value. + */ + } + /* Setup frame format: defaults apart from width and height */ + if (!ret) + ret = reg_write(client, MT9V022_COLUMN_START, rect.left); + if (!ret) + ret = reg_write(client, MT9V022_ROW_START, rect.top); + /* + * mt9v022: min total row time is 660 columns, min blanking is 43 + * mt9v024: min total row time is 690 columns, min blanking is 61 + */ + if (is_mt9v024(mt9v022->chip_version)) { + min_row = 690; + min_blank = 61; + } else { + min_row = 660; + min_blank = 43; + } + if (!ret) + ret = v4l2_ctrl_s_ctrl(mt9v022->hblank, + rect.width > min_row - min_blank ? + min_blank : min_row - rect.width); + if (!ret) + ret = v4l2_ctrl_s_ctrl(mt9v022->vblank, 45); + if (!ret) + ret = reg_write(client, MT9V022_WINDOW_WIDTH, rect.width); + if (!ret) + ret = reg_write(client, MT9V022_WINDOW_HEIGHT, + rect.height + mt9v022->y_skip_top); + + if (ret < 0) + return ret; + + dev_dbg(&client->dev, "Frame %dx%d pixel\n", rect.width, rect.height); + + mt9v022->rect = rect; + + return 0; +} + +static int mt9v022_get_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9v022 *mt9v022 = to_mt9v022(client); + + if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) + return -EINVAL; + + switch (sel->target) { + case V4L2_SEL_TGT_CROP_BOUNDS: + case V4L2_SEL_TGT_CROP_DEFAULT: + sel->r.left = MT9V022_COLUMN_SKIP; + sel->r.top = MT9V022_ROW_SKIP; + sel->r.width = MT9V022_MAX_WIDTH; + sel->r.height = MT9V022_MAX_HEIGHT; + return 0; + case V4L2_SEL_TGT_CROP: + sel->r = mt9v022->rect; + return 0; + default: + return -EINVAL; + } +} + +static int mt9v022_get_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct v4l2_mbus_framefmt *mf = &format->format; + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9v022 *mt9v022 = to_mt9v022(client); + + if (format->pad) + return -EINVAL; + + mf->width = mt9v022->rect.width; + mf->height = mt9v022->rect.height; + mf->code = mt9v022->fmt->code; + mf->colorspace = mt9v022->fmt->colorspace; + mf->field = V4L2_FIELD_NONE; + + return 0; +} + +static int mt9v022_s_fmt(struct v4l2_subdev *sd, + const struct mt9v022_datafmt *fmt, + struct v4l2_mbus_framefmt *mf) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9v022 *mt9v022 = to_mt9v022(client); + struct v4l2_subdev_selection sel = { + .which = V4L2_SUBDEV_FORMAT_ACTIVE, + .target = V4L2_SEL_TGT_CROP, + .r.left = mt9v022->rect.left, + .r.top = mt9v022->rect.top, + .r.width = mf->width, + .r.height = mf->height, + }; + int ret; + + /* + * The caller provides a supported format, as verified per call to + * .set_fmt(FORMAT_TRY), datawidth is from our supported format list + */ + switch (mf->code) { + case MEDIA_BUS_FMT_Y8_1X8: + case MEDIA_BUS_FMT_Y10_1X10: + if (mt9v022->model != MT9V022IX7ATM) + return -EINVAL; + break; + case MEDIA_BUS_FMT_SBGGR8_1X8: + case MEDIA_BUS_FMT_SBGGR10_1X10: + if (mt9v022->model != MT9V022IX7ATC) + return -EINVAL; + break; + default: + return -EINVAL; + } + + /* No support for scaling on this camera, just crop. */ + ret = mt9v022_set_selection(sd, NULL, &sel); + if (!ret) { + mf->width = mt9v022->rect.width; + mf->height = mt9v022->rect.height; + mt9v022->fmt = fmt; + mf->colorspace = fmt->colorspace; + } + + return ret; +} + +static int mt9v022_set_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct v4l2_mbus_framefmt *mf = &format->format; + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9v022 *mt9v022 = to_mt9v022(client); + const struct mt9v022_datafmt *fmt; + int align = mf->code == MEDIA_BUS_FMT_SBGGR8_1X8 || + mf->code == MEDIA_BUS_FMT_SBGGR10_1X10; + + if (format->pad) + return -EINVAL; + + v4l_bound_align_image(&mf->width, MT9V022_MIN_WIDTH, + MT9V022_MAX_WIDTH, align, + &mf->height, MT9V022_MIN_HEIGHT + mt9v022->y_skip_top, + MT9V022_MAX_HEIGHT + mt9v022->y_skip_top, align, 0); + + fmt = mt9v022_find_datafmt(mf->code, mt9v022->fmts, + mt9v022->num_fmts); + if (!fmt) { + fmt = mt9v022->fmt; + mf->code = fmt->code; + } + + mf->colorspace = fmt->colorspace; + + if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) + return mt9v022_s_fmt(sd, fmt, mf); + cfg->try_fmt = *mf; + return 0; +} + +#ifdef CONFIG_VIDEO_ADV_DEBUG +static int mt9v022_g_register(struct v4l2_subdev *sd, + struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (reg->reg > 0xff) + return -EINVAL; + + reg->size = 2; + reg->val = reg_read(client, reg->reg); + + if (reg->val > 0xffff) + return -EIO; + + return 0; +} + +static int mt9v022_s_register(struct v4l2_subdev *sd, + const struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (reg->reg > 0xff) + return -EINVAL; + + if (reg_write(client, reg->reg, reg->val) < 0) + return -EIO; + + return 0; +} +#endif + +static int mt9v022_s_power(struct v4l2_subdev *sd, int on) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + struct mt9v022 *mt9v022 = to_mt9v022(client); + + return soc_camera_set_power(&client->dev, ssdd, mt9v022->clk, on); +} + +static int mt9v022_g_volatile_ctrl(struct v4l2_ctrl *ctrl) +{ + struct mt9v022 *mt9v022 = container_of(ctrl->handler, + struct mt9v022, hdl); + struct v4l2_subdev *sd = &mt9v022->subdev; + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct v4l2_ctrl *gain = mt9v022->gain; + struct v4l2_ctrl *exp = mt9v022->exposure; + unsigned long range; + int data; + + switch (ctrl->id) { + case V4L2_CID_AUTOGAIN: + data = reg_read(client, MT9V022_ANALOG_GAIN); + if (data < 0) + return -EIO; + + range = gain->maximum - gain->minimum; + gain->val = ((data - 16) * range + 24) / 48 + gain->minimum; + return 0; + case V4L2_CID_EXPOSURE_AUTO: + data = reg_read(client, MT9V022_TOTAL_SHUTTER_WIDTH); + if (data < 0) + return -EIO; + + range = exp->maximum - exp->minimum; + exp->val = ((data - 1) * range + 239) / 479 + exp->minimum; + return 0; + case V4L2_CID_HBLANK: + data = reg_read(client, MT9V022_HORIZONTAL_BLANKING); + if (data < 0) + return -EIO; + ctrl->val = data; + return 0; + case V4L2_CID_VBLANK: + data = reg_read(client, MT9V022_VERTICAL_BLANKING); + if (data < 0) + return -EIO; + ctrl->val = data; + return 0; + } + return -EINVAL; +} + +static int mt9v022_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct mt9v022 *mt9v022 = container_of(ctrl->handler, + struct mt9v022, hdl); + struct v4l2_subdev *sd = &mt9v022->subdev; + struct i2c_client *client = v4l2_get_subdevdata(sd); + int data; + + switch (ctrl->id) { + case V4L2_CID_VFLIP: + if (ctrl->val) + data = reg_set(client, MT9V022_READ_MODE, 0x10); + else + data = reg_clear(client, MT9V022_READ_MODE, 0x10); + if (data < 0) + return -EIO; + return 0; + case V4L2_CID_HFLIP: + if (ctrl->val) + data = reg_set(client, MT9V022_READ_MODE, 0x20); + else + data = reg_clear(client, MT9V022_READ_MODE, 0x20); + if (data < 0) + return -EIO; + return 0; + case V4L2_CID_AUTOGAIN: + if (ctrl->val) { + if (reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x2) < 0) + return -EIO; + } else { + struct v4l2_ctrl *gain = mt9v022->gain; + /* mt9v022 has minimum == default */ + unsigned long range = gain->maximum - gain->minimum; + /* Valid values 16 to 64, 32 to 64 must be even. */ + unsigned long gain_val = ((gain->val - (s32)gain->minimum) * + 48 + range / 2) / range + 16; + + if (gain_val >= 32) + gain_val &= ~1; + + /* + * The user wants to set gain manually, hope, she + * knows, what she's doing... Switch AGC off. + */ + if (reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x2) < 0) + return -EIO; + + dev_dbg(&client->dev, "Setting gain from %d to %lu\n", + reg_read(client, MT9V022_ANALOG_GAIN), gain_val); + if (reg_write(client, MT9V022_ANALOG_GAIN, gain_val) < 0) + return -EIO; + } + return 0; + case V4L2_CID_EXPOSURE_AUTO: + if (ctrl->val == V4L2_EXPOSURE_AUTO) { + data = reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x1); + } else { + struct v4l2_ctrl *exp = mt9v022->exposure; + unsigned long range = exp->maximum - exp->minimum; + unsigned long shutter = ((exp->val - (s32)exp->minimum) * + 479 + range / 2) / range + 1; + + /* + * The user wants to set shutter width manually, hope, + * she knows, what she's doing... Switch AEC off. + */ + data = reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x1); + if (data < 0) + return -EIO; + dev_dbg(&client->dev, "Shutter width from %d to %lu\n", + reg_read(client, MT9V022_TOTAL_SHUTTER_WIDTH), + shutter); + if (reg_write(client, MT9V022_TOTAL_SHUTTER_WIDTH, + shutter) < 0) + return -EIO; + } + return 0; + case V4L2_CID_HBLANK: + if (reg_write(client, MT9V022_HORIZONTAL_BLANKING, + ctrl->val) < 0) + return -EIO; + return 0; + case V4L2_CID_VBLANK: + if (reg_write(client, MT9V022_VERTICAL_BLANKING, + ctrl->val) < 0) + return -EIO; + return 0; + } + return -EINVAL; +} + +/* + * Interface active, can use i2c. If it fails, it can indeed mean, that + * this wasn't our capture interface, so, we wait for the right one + */ +static int mt9v022_video_probe(struct i2c_client *client) +{ + struct mt9v022 *mt9v022 = to_mt9v022(client); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + s32 data; + int ret; + unsigned long flags; + + ret = mt9v022_s_power(&mt9v022->subdev, 1); + if (ret < 0) + return ret; + + /* Read out the chip version register */ + data = reg_read(client, MT9V022_CHIP_VERSION); + + /* must be 0x1311, 0x1313 or 0x1324 */ + if (data != 0x1311 && data != 0x1313 && data != 0x1324) { + ret = -ENODEV; + dev_info(&client->dev, "No MT9V022 found, ID register 0x%x\n", + data); + goto ei2c; + } + + mt9v022->chip_version = data; + + mt9v022->reg = is_mt9v024(data) ? &mt9v024_register : + &mt9v022_register; + + /* Soft reset */ + ret = reg_write(client, MT9V022_RESET, 1); + if (ret < 0) + goto ei2c; + /* 15 clock cycles */ + udelay(200); + if (reg_read(client, MT9V022_RESET)) { + dev_err(&client->dev, "Resetting MT9V022 failed!\n"); + if (ret > 0) + ret = -EIO; + goto ei2c; + } + + /* Set monochrome or colour sensor type */ + if (sensor_type && (!strcmp("colour", sensor_type) || + !strcmp("color", sensor_type))) { + ret = reg_write(client, MT9V022_PIXEL_OPERATION_MODE, 4 | 0x11); + mt9v022->model = MT9V022IX7ATC; + mt9v022->fmts = mt9v022_colour_fmts; + } else { + ret = reg_write(client, MT9V022_PIXEL_OPERATION_MODE, 0x11); + mt9v022->model = MT9V022IX7ATM; + mt9v022->fmts = mt9v022_monochrome_fmts; + } + + if (ret < 0) + goto ei2c; + + mt9v022->num_fmts = 0; + + /* + * This is a 10bit sensor, so by default we only allow 10bit. + * The platform may support different bus widths due to + * different routing of the data lines. + */ + if (ssdd->query_bus_param) + flags = ssdd->query_bus_param(ssdd); + else + flags = SOCAM_DATAWIDTH_10; + + if (flags & SOCAM_DATAWIDTH_10) + mt9v022->num_fmts++; + else + mt9v022->fmts++; + + if (flags & SOCAM_DATAWIDTH_8) + mt9v022->num_fmts++; + + mt9v022->fmt = &mt9v022->fmts[0]; + + dev_info(&client->dev, "Detected a MT9V022 chip ID %x, %s sensor\n", + data, mt9v022->model == MT9V022IX7ATM ? + "monochrome" : "colour"); + + ret = mt9v022_init(client); + if (ret < 0) + dev_err(&client->dev, "Failed to initialise the camera\n"); + +ei2c: + mt9v022_s_power(&mt9v022->subdev, 0); + return ret; +} + +static int mt9v022_g_skip_top_lines(struct v4l2_subdev *sd, u32 *lines) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9v022 *mt9v022 = to_mt9v022(client); + + *lines = mt9v022->y_skip_top; + + return 0; +} + +static const struct v4l2_ctrl_ops mt9v022_ctrl_ops = { + .g_volatile_ctrl = mt9v022_g_volatile_ctrl, + .s_ctrl = mt9v022_s_ctrl, +}; + +static const struct v4l2_subdev_core_ops mt9v022_subdev_core_ops = { +#ifdef CONFIG_VIDEO_ADV_DEBUG + .g_register = mt9v022_g_register, + .s_register = mt9v022_s_register, +#endif + .s_power = mt9v022_s_power, +}; + +static int mt9v022_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_mbus_code_enum *code) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct mt9v022 *mt9v022 = to_mt9v022(client); + + if (code->pad || code->index >= mt9v022->num_fmts) + return -EINVAL; + + code->code = mt9v022->fmts[code->index].code; + return 0; +} + +static int mt9v022_g_mbus_config(struct v4l2_subdev *sd, + struct v4l2_mbus_config *cfg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + + cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_SLAVE | + V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING | + V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_LOW | + V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_LOW | + V4L2_MBUS_DATA_ACTIVE_HIGH; + cfg->type = V4L2_MBUS_PARALLEL; + cfg->flags = soc_camera_apply_board_flags(ssdd, cfg); + + return 0; +} + +static int mt9v022_s_mbus_config(struct v4l2_subdev *sd, + const struct v4l2_mbus_config *cfg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + struct mt9v022 *mt9v022 = to_mt9v022(client); + unsigned long flags = soc_camera_apply_board_flags(ssdd, cfg); + unsigned int bps = soc_mbus_get_fmtdesc(mt9v022->fmt->code)->bits_per_sample; + int ret; + u16 pixclk = 0; + + if (ssdd->set_bus_param) { + ret = ssdd->set_bus_param(ssdd, 1 << (bps - 1)); + if (ret) + return ret; + } else if (bps != 10) { + /* + * Without board specific bus width settings we only support the + * sensors native bus width + */ + return -EINVAL; + } + + if (flags & V4L2_MBUS_PCLK_SAMPLE_FALLING) + pixclk |= 0x10; + + if (!(flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)) + pixclk |= 0x1; + + if (!(flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)) + pixclk |= 0x2; + + ret = reg_write(client, mt9v022->reg->pixclk_fv_lv, pixclk); + if (ret < 0) + return ret; + + if (!(flags & V4L2_MBUS_MASTER)) + mt9v022->chip_control &= ~0x8; + + ret = reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control); + if (ret < 0) + return ret; + + dev_dbg(&client->dev, "Calculated pixclk 0x%x, chip control 0x%x\n", + pixclk, mt9v022->chip_control); + + return 0; +} + +static const struct v4l2_subdev_video_ops mt9v022_subdev_video_ops = { + .s_stream = mt9v022_s_stream, + .g_mbus_config = mt9v022_g_mbus_config, + .s_mbus_config = mt9v022_s_mbus_config, +}; + +static const struct v4l2_subdev_sensor_ops mt9v022_subdev_sensor_ops = { + .g_skip_top_lines = mt9v022_g_skip_top_lines, +}; + +static const struct v4l2_subdev_pad_ops mt9v022_subdev_pad_ops = { + .enum_mbus_code = mt9v022_enum_mbus_code, + .get_selection = mt9v022_get_selection, + .set_selection = mt9v022_set_selection, + .get_fmt = mt9v022_get_fmt, + .set_fmt = mt9v022_set_fmt, +}; + +static const struct v4l2_subdev_ops mt9v022_subdev_ops = { + .core = &mt9v022_subdev_core_ops, + .video = &mt9v022_subdev_video_ops, + .sensor = &mt9v022_subdev_sensor_ops, + .pad = &mt9v022_subdev_pad_ops, +}; + +static int mt9v022_probe(struct i2c_client *client, + const struct i2c_device_id *did) +{ + struct mt9v022 *mt9v022; + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); + struct mt9v022_platform_data *pdata; + int ret; + + if (!ssdd) { + dev_err(&client->dev, "MT9V022 driver needs platform data\n"); + return -EINVAL; + } + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) { + dev_warn(&adapter->dev, + "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n"); + return -EIO; + } + + mt9v022 = devm_kzalloc(&client->dev, sizeof(struct mt9v022), GFP_KERNEL); + if (!mt9v022) + return -ENOMEM; + + pdata = ssdd->drv_priv; + v4l2_i2c_subdev_init(&mt9v022->subdev, client, &mt9v022_subdev_ops); + v4l2_ctrl_handler_init(&mt9v022->hdl, 6); + v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 0); + v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops, + V4L2_CID_HFLIP, 0, 1, 1, 0); + mt9v022->autogain = v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops, + V4L2_CID_AUTOGAIN, 0, 1, 1, 1); + mt9v022->gain = v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops, + V4L2_CID_GAIN, 0, 127, 1, 64); + + /* + * Simulated autoexposure. If enabled, we calculate shutter width + * ourselves in the driver based on vertical blanking and frame width + */ + mt9v022->autoexposure = v4l2_ctrl_new_std_menu(&mt9v022->hdl, + &mt9v022_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, 1, 0, + V4L2_EXPOSURE_AUTO); + mt9v022->exposure = v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops, + V4L2_CID_EXPOSURE, 1, 255, 1, 255); + + mt9v022->hblank = v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops, + V4L2_CID_HBLANK, MT9V022_HORIZONTAL_BLANKING_MIN, + MT9V022_HORIZONTAL_BLANKING_MAX, 1, + MT9V022_HORIZONTAL_BLANKING_DEF); + + mt9v022->vblank = v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops, + V4L2_CID_VBLANK, MT9V022_VERTICAL_BLANKING_MIN, + MT9V022_VERTICAL_BLANKING_MAX, 1, + MT9V022_VERTICAL_BLANKING_DEF); + + mt9v022->subdev.ctrl_handler = &mt9v022->hdl; + if (mt9v022->hdl.error) { + int err = mt9v022->hdl.error; + + dev_err(&client->dev, "control initialisation err %d\n", err); + return err; + } + v4l2_ctrl_auto_cluster(2, &mt9v022->autoexposure, + V4L2_EXPOSURE_MANUAL, true); + v4l2_ctrl_auto_cluster(2, &mt9v022->autogain, 0, true); + + mt9v022->chip_control = MT9V022_CHIP_CONTROL_DEFAULT; + + /* + * On some platforms the first read out line is corrupted. + * Workaround it by skipping if indicated by platform data. + */ + mt9v022->y_skip_top = pdata ? pdata->y_skip_top : 0; + mt9v022->rect.left = MT9V022_COLUMN_SKIP; + mt9v022->rect.top = MT9V022_ROW_SKIP; + mt9v022->rect.width = MT9V022_MAX_WIDTH; + mt9v022->rect.height = MT9V022_MAX_HEIGHT; + + mt9v022->clk = v4l2_clk_get(&client->dev, "mclk"); + if (IS_ERR(mt9v022->clk)) { + ret = PTR_ERR(mt9v022->clk); + goto eclkget; + } + + ret = mt9v022_video_probe(client); + if (ret) { + v4l2_clk_put(mt9v022->clk); +eclkget: + v4l2_ctrl_handler_free(&mt9v022->hdl); + } + + return ret; +} + +static int mt9v022_remove(struct i2c_client *client) +{ + struct mt9v022 *mt9v022 = to_mt9v022(client); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + + v4l2_clk_put(mt9v022->clk); + v4l2_device_unregister_subdev(&mt9v022->subdev); + if (ssdd->free_bus) + ssdd->free_bus(ssdd); + v4l2_ctrl_handler_free(&mt9v022->hdl); + + return 0; +} +static const struct i2c_device_id mt9v022_id[] = { + { "mt9v022", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, mt9v022_id); + +static struct i2c_driver mt9v022_i2c_driver = { + .driver = { + .name = "mt9v022", + }, + .probe = mt9v022_probe, + .remove = mt9v022_remove, + .id_table = mt9v022_id, +}; + +module_i2c_driver(mt9v022_i2c_driver); + +MODULE_DESCRIPTION("Micron MT9V022 Camera driver"); +MODULE_AUTHOR("Guennadi Liakhovetski <kernel@pengutronix.de>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/i2c/soc_camera/ov5642.c b/drivers/media/i2c/soc_camera/ov5642.c new file mode 100644 index 000000000..39f420db9 --- /dev/null +++ b/drivers/media/i2c/soc_camera/ov5642.c @@ -0,0 +1,1088 @@ +/* + * Driver for OV5642 CMOS Image Sensor from Omnivision + * + * Copyright (C) 2011, Bastian Hecht <hechtb@gmail.com> + * + * Based on Sony IMX074 Camera Driver + * Copyright (C) 2010, Guennadi Liakhovetski <g.liakhovetski@gmx.de> + * + * Based on Omnivision OV7670 Camera Driver + * Copyright (C) 2006-7 Jonathan Corbet <corbet@lwn.net> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/bitops.h> +#include <linux/delay.h> +#include <linux/i2c.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/videodev2.h> +#include <linux/module.h> +#include <linux/v4l2-mediabus.h> + +#include <media/soc_camera.h> +#include <media/v4l2-clk.h> +#include <media/v4l2-subdev.h> + +/* OV5642 registers */ +#define REG_CHIP_ID_HIGH 0x300a +#define REG_CHIP_ID_LOW 0x300b + +#define REG_WINDOW_START_X_HIGH 0x3800 +#define REG_WINDOW_START_X_LOW 0x3801 +#define REG_WINDOW_START_Y_HIGH 0x3802 +#define REG_WINDOW_START_Y_LOW 0x3803 +#define REG_WINDOW_WIDTH_HIGH 0x3804 +#define REG_WINDOW_WIDTH_LOW 0x3805 +#define REG_WINDOW_HEIGHT_HIGH 0x3806 +#define REG_WINDOW_HEIGHT_LOW 0x3807 +#define REG_OUT_WIDTH_HIGH 0x3808 +#define REG_OUT_WIDTH_LOW 0x3809 +#define REG_OUT_HEIGHT_HIGH 0x380a +#define REG_OUT_HEIGHT_LOW 0x380b +#define REG_OUT_TOTAL_WIDTH_HIGH 0x380c +#define REG_OUT_TOTAL_WIDTH_LOW 0x380d +#define REG_OUT_TOTAL_HEIGHT_HIGH 0x380e +#define REG_OUT_TOTAL_HEIGHT_LOW 0x380f +#define REG_OUTPUT_FORMAT 0x4300 +#define REG_ISP_CTRL_01 0x5001 +#define REG_AVG_WINDOW_END_X_HIGH 0x5682 +#define REG_AVG_WINDOW_END_X_LOW 0x5683 +#define REG_AVG_WINDOW_END_Y_HIGH 0x5686 +#define REG_AVG_WINDOW_END_Y_LOW 0x5687 + +/* active pixel array size */ +#define OV5642_SENSOR_SIZE_X 2592 +#define OV5642_SENSOR_SIZE_Y 1944 + +/* + * About OV5642 resolution, cropping and binning: + * This sensor supports it all, at least in the feature description. + * Unfortunately, no combination of appropriate registers settings could make + * the chip work the intended way. As it works with predefined register lists, + * some undocumented registers are presumably changed there to achieve their + * goals. + * This driver currently only works for resolutions up to 720 lines with a + * 1:1 scale. Hopefully these restrictions will be removed in the future. + */ +#define OV5642_MAX_WIDTH OV5642_SENSOR_SIZE_X +#define OV5642_MAX_HEIGHT 720 + +/* default sizes */ +#define OV5642_DEFAULT_WIDTH 1280 +#define OV5642_DEFAULT_HEIGHT OV5642_MAX_HEIGHT + +/* minimum extra blanking */ +#define BLANKING_EXTRA_WIDTH 500 +#define BLANKING_EXTRA_HEIGHT 20 + +/* + * the sensor's autoexposure is buggy when setting total_height low. + * It tries to expose longer than 1 frame period without taking care of it + * and this leads to weird output. So we set 1000 lines as minimum. + */ +#define BLANKING_MIN_HEIGHT 1000 + +struct regval_list { + u16 reg_num; + u8 value; +}; + +static struct regval_list ov5642_default_regs_init[] = { + { 0x3103, 0x93 }, + { 0x3008, 0x82 }, + { 0x3017, 0x7f }, + { 0x3018, 0xfc }, + { 0x3810, 0xc2 }, + { 0x3615, 0xf0 }, + { 0x3000, 0x0 }, + { 0x3001, 0x0 }, + { 0x3002, 0x0 }, + { 0x3003, 0x0 }, + { 0x3004, 0xff }, + { 0x3030, 0x2b }, + { 0x3011, 0x8 }, + { 0x3010, 0x10 }, + { 0x3604, 0x60 }, + { 0x3622, 0x60 }, + { 0x3621, 0x9 }, + { 0x3709, 0x0 }, + { 0x4000, 0x21 }, + { 0x401d, 0x22 }, + { 0x3600, 0x54 }, + { 0x3605, 0x4 }, + { 0x3606, 0x3f }, + { 0x3c01, 0x80 }, + { 0x300d, 0x22 }, + { 0x3623, 0x22 }, + { 0x5000, 0x4f }, + { 0x5020, 0x4 }, + { 0x5181, 0x79 }, + { 0x5182, 0x0 }, + { 0x5185, 0x22 }, + { 0x5197, 0x1 }, + { 0x5500, 0xa }, + { 0x5504, 0x0 }, + { 0x5505, 0x7f }, + { 0x5080, 0x8 }, + { 0x300e, 0x18 }, + { 0x4610, 0x0 }, + { 0x471d, 0x5 }, + { 0x4708, 0x6 }, + { 0x370c, 0xa0 }, + { 0x5687, 0x94 }, + { 0x501f, 0x0 }, + { 0x5000, 0x4f }, + { 0x5001, 0xcf }, + { 0x4300, 0x30 }, + { 0x4300, 0x30 }, + { 0x460b, 0x35 }, + { 0x471d, 0x0 }, + { 0x3002, 0xc }, + { 0x3002, 0x0 }, + { 0x4713, 0x3 }, + { 0x471c, 0x50 }, + { 0x4721, 0x2 }, + { 0x4402, 0x90 }, + { 0x460c, 0x22 }, + { 0x3815, 0x44 }, + { 0x3503, 0x7 }, + { 0x3501, 0x73 }, + { 0x3502, 0x80 }, + { 0x350b, 0x0 }, + { 0x3818, 0xc8 }, + { 0x3824, 0x11 }, + { 0x3a00, 0x78 }, + { 0x3a1a, 0x4 }, + { 0x3a13, 0x30 }, + { 0x3a18, 0x0 }, + { 0x3a19, 0x7c }, + { 0x3a08, 0x12 }, + { 0x3a09, 0xc0 }, + { 0x3a0a, 0xf }, + { 0x3a0b, 0xa0 }, + { 0x350c, 0x7 }, + { 0x350d, 0xd0 }, + { 0x3a0d, 0x8 }, + { 0x3a0e, 0x6 }, + { 0x3500, 0x0 }, + { 0x3501, 0x0 }, + { 0x3502, 0x0 }, + { 0x350a, 0x0 }, + { 0x350b, 0x0 }, + { 0x3503, 0x0 }, + { 0x3a0f, 0x3c }, + { 0x3a10, 0x32 }, + { 0x3a1b, 0x3c }, + { 0x3a1e, 0x32 }, + { 0x3a11, 0x80 }, + { 0x3a1f, 0x20 }, + { 0x3030, 0x2b }, + { 0x3a02, 0x0 }, + { 0x3a03, 0x7d }, + { 0x3a04, 0x0 }, + { 0x3a14, 0x0 }, + { 0x3a15, 0x7d }, + { 0x3a16, 0x0 }, + { 0x3a00, 0x78 }, + { 0x3a08, 0x9 }, + { 0x3a09, 0x60 }, + { 0x3a0a, 0x7 }, + { 0x3a0b, 0xd0 }, + { 0x3a0d, 0x10 }, + { 0x3a0e, 0xd }, + { 0x4407, 0x4 }, + { 0x5193, 0x70 }, + { 0x589b, 0x0 }, + { 0x589a, 0xc0 }, + { 0x401e, 0x20 }, + { 0x4001, 0x42 }, + { 0x401c, 0x6 }, + { 0x3825, 0xac }, + { 0x3827, 0xc }, + { 0x528a, 0x1 }, + { 0x528b, 0x4 }, + { 0x528c, 0x8 }, + { 0x528d, 0x10 }, + { 0x528e, 0x20 }, + { 0x528f, 0x28 }, + { 0x5290, 0x30 }, + { 0x5292, 0x0 }, + { 0x5293, 0x1 }, + { 0x5294, 0x0 }, + { 0x5295, 0x4 }, + { 0x5296, 0x0 }, + { 0x5297, 0x8 }, + { 0x5298, 0x0 }, + { 0x5299, 0x10 }, + { 0x529a, 0x0 }, + { 0x529b, 0x20 }, + { 0x529c, 0x0 }, + { 0x529d, 0x28 }, + { 0x529e, 0x0 }, + { 0x529f, 0x30 }, + { 0x5282, 0x0 }, + { 0x5300, 0x0 }, + { 0x5301, 0x20 }, + { 0x5302, 0x0 }, + { 0x5303, 0x7c }, + { 0x530c, 0x0 }, + { 0x530d, 0xc }, + { 0x530e, 0x20 }, + { 0x530f, 0x80 }, + { 0x5310, 0x20 }, + { 0x5311, 0x80 }, + { 0x5308, 0x20 }, + { 0x5309, 0x40 }, + { 0x5304, 0x0 }, + { 0x5305, 0x30 }, + { 0x5306, 0x0 }, + { 0x5307, 0x80 }, + { 0x5314, 0x8 }, + { 0x5315, 0x20 }, + { 0x5319, 0x30 }, + { 0x5316, 0x10 }, + { 0x5317, 0x0 }, + { 0x5318, 0x2 }, + { 0x5380, 0x1 }, + { 0x5381, 0x0 }, + { 0x5382, 0x0 }, + { 0x5383, 0x4e }, + { 0x5384, 0x0 }, + { 0x5385, 0xf }, + { 0x5386, 0x0 }, + { 0x5387, 0x0 }, + { 0x5388, 0x1 }, + { 0x5389, 0x15 }, + { 0x538a, 0x0 }, + { 0x538b, 0x31 }, + { 0x538c, 0x0 }, + { 0x538d, 0x0 }, + { 0x538e, 0x0 }, + { 0x538f, 0xf }, + { 0x5390, 0x0 }, + { 0x5391, 0xab }, + { 0x5392, 0x0 }, + { 0x5393, 0xa2 }, + { 0x5394, 0x8 }, + { 0x5480, 0x14 }, + { 0x5481, 0x21 }, + { 0x5482, 0x36 }, + { 0x5483, 0x57 }, + { 0x5484, 0x65 }, + { 0x5485, 0x71 }, + { 0x5486, 0x7d }, + { 0x5487, 0x87 }, + { 0x5488, 0x91 }, + { 0x5489, 0x9a }, + { 0x548a, 0xaa }, + { 0x548b, 0xb8 }, + { 0x548c, 0xcd }, + { 0x548d, 0xdd }, + { 0x548e, 0xea }, + { 0x548f, 0x1d }, + { 0x5490, 0x5 }, + { 0x5491, 0x0 }, + { 0x5492, 0x4 }, + { 0x5493, 0x20 }, + { 0x5494, 0x3 }, + { 0x5495, 0x60 }, + { 0x5496, 0x2 }, + { 0x5497, 0xb8 }, + { 0x5498, 0x2 }, + { 0x5499, 0x86 }, + { 0x549a, 0x2 }, + { 0x549b, 0x5b }, + { 0x549c, 0x2 }, + { 0x549d, 0x3b }, + { 0x549e, 0x2 }, + { 0x549f, 0x1c }, + { 0x54a0, 0x2 }, + { 0x54a1, 0x4 }, + { 0x54a2, 0x1 }, + { 0x54a3, 0xed }, + { 0x54a4, 0x1 }, + { 0x54a5, 0xc5 }, + { 0x54a6, 0x1 }, + { 0x54a7, 0xa5 }, + { 0x54a8, 0x1 }, + { 0x54a9, 0x6c }, + { 0x54aa, 0x1 }, + { 0x54ab, 0x41 }, + { 0x54ac, 0x1 }, + { 0x54ad, 0x20 }, + { 0x54ae, 0x0 }, + { 0x54af, 0x16 }, + { 0x54b0, 0x1 }, + { 0x54b1, 0x20 }, + { 0x54b2, 0x0 }, + { 0x54b3, 0x10 }, + { 0x54b4, 0x0 }, + { 0x54b5, 0xf0 }, + { 0x54b6, 0x0 }, + { 0x54b7, 0xdf }, + { 0x5402, 0x3f }, + { 0x5403, 0x0 }, + { 0x3406, 0x0 }, + { 0x5180, 0xff }, + { 0x5181, 0x52 }, + { 0x5182, 0x11 }, + { 0x5183, 0x14 }, + { 0x5184, 0x25 }, + { 0x5185, 0x24 }, + { 0x5186, 0x6 }, + { 0x5187, 0x8 }, + { 0x5188, 0x8 }, + { 0x5189, 0x7c }, + { 0x518a, 0x60 }, + { 0x518b, 0xb2 }, + { 0x518c, 0xb2 }, + { 0x518d, 0x44 }, + { 0x518e, 0x3d }, + { 0x518f, 0x58 }, + { 0x5190, 0x46 }, + { 0x5191, 0xf8 }, + { 0x5192, 0x4 }, + { 0x5193, 0x70 }, + { 0x5194, 0xf0 }, + { 0x5195, 0xf0 }, + { 0x5196, 0x3 }, + { 0x5197, 0x1 }, + { 0x5198, 0x4 }, + { 0x5199, 0x12 }, + { 0x519a, 0x4 }, + { 0x519b, 0x0 }, + { 0x519c, 0x6 }, + { 0x519d, 0x82 }, + { 0x519e, 0x0 }, + { 0x5025, 0x80 }, + { 0x3a0f, 0x38 }, + { 0x3a10, 0x30 }, + { 0x3a1b, 0x3a }, + { 0x3a1e, 0x2e }, + { 0x3a11, 0x60 }, + { 0x3a1f, 0x10 }, + { 0x5688, 0xa6 }, + { 0x5689, 0x6a }, + { 0x568a, 0xea }, + { 0x568b, 0xae }, + { 0x568c, 0xa6 }, + { 0x568d, 0x6a }, + { 0x568e, 0x62 }, + { 0x568f, 0x26 }, + { 0x5583, 0x40 }, + { 0x5584, 0x40 }, + { 0x5580, 0x2 }, + { 0x5000, 0xcf }, + { 0x5800, 0x27 }, + { 0x5801, 0x19 }, + { 0x5802, 0x12 }, + { 0x5803, 0xf }, + { 0x5804, 0x10 }, + { 0x5805, 0x15 }, + { 0x5806, 0x1e }, + { 0x5807, 0x2f }, + { 0x5808, 0x15 }, + { 0x5809, 0xd }, + { 0x580a, 0xa }, + { 0x580b, 0x9 }, + { 0x580c, 0xa }, + { 0x580d, 0xc }, + { 0x580e, 0x12 }, + { 0x580f, 0x19 }, + { 0x5810, 0xb }, + { 0x5811, 0x7 }, + { 0x5812, 0x4 }, + { 0x5813, 0x3 }, + { 0x5814, 0x3 }, + { 0x5815, 0x6 }, + { 0x5816, 0xa }, + { 0x5817, 0xf }, + { 0x5818, 0xa }, + { 0x5819, 0x5 }, + { 0x581a, 0x1 }, + { 0x581b, 0x0 }, + { 0x581c, 0x0 }, + { 0x581d, 0x3 }, + { 0x581e, 0x8 }, + { 0x581f, 0xc }, + { 0x5820, 0xa }, + { 0x5821, 0x5 }, + { 0x5822, 0x1 }, + { 0x5823, 0x0 }, + { 0x5824, 0x0 }, + { 0x5825, 0x3 }, + { 0x5826, 0x8 }, + { 0x5827, 0xc }, + { 0x5828, 0xe }, + { 0x5829, 0x8 }, + { 0x582a, 0x6 }, + { 0x582b, 0x4 }, + { 0x582c, 0x5 }, + { 0x582d, 0x7 }, + { 0x582e, 0xb }, + { 0x582f, 0x12 }, + { 0x5830, 0x18 }, + { 0x5831, 0x10 }, + { 0x5832, 0xc }, + { 0x5833, 0xa }, + { 0x5834, 0xb }, + { 0x5835, 0xe }, + { 0x5836, 0x15 }, + { 0x5837, 0x19 }, + { 0x5838, 0x32 }, + { 0x5839, 0x1f }, + { 0x583a, 0x18 }, + { 0x583b, 0x16 }, + { 0x583c, 0x17 }, + { 0x583d, 0x1e }, + { 0x583e, 0x26 }, + { 0x583f, 0x53 }, + { 0x5840, 0x10 }, + { 0x5841, 0xf }, + { 0x5842, 0xd }, + { 0x5843, 0xc }, + { 0x5844, 0xe }, + { 0x5845, 0x9 }, + { 0x5846, 0x11 }, + { 0x5847, 0x10 }, + { 0x5848, 0x10 }, + { 0x5849, 0x10 }, + { 0x584a, 0x10 }, + { 0x584b, 0xe }, + { 0x584c, 0x10 }, + { 0x584d, 0x10 }, + { 0x584e, 0x11 }, + { 0x584f, 0x10 }, + { 0x5850, 0xf }, + { 0x5851, 0xc }, + { 0x5852, 0xf }, + { 0x5853, 0x10 }, + { 0x5854, 0x10 }, + { 0x5855, 0xf }, + { 0x5856, 0xe }, + { 0x5857, 0xb }, + { 0x5858, 0x10 }, + { 0x5859, 0xd }, + { 0x585a, 0xd }, + { 0x585b, 0xc }, + { 0x585c, 0xc }, + { 0x585d, 0xc }, + { 0x585e, 0xb }, + { 0x585f, 0xc }, + { 0x5860, 0xc }, + { 0x5861, 0xc }, + { 0x5862, 0xd }, + { 0x5863, 0x8 }, + { 0x5864, 0x11 }, + { 0x5865, 0x18 }, + { 0x5866, 0x18 }, + { 0x5867, 0x19 }, + { 0x5868, 0x17 }, + { 0x5869, 0x19 }, + { 0x586a, 0x16 }, + { 0x586b, 0x13 }, + { 0x586c, 0x13 }, + { 0x586d, 0x12 }, + { 0x586e, 0x13 }, + { 0x586f, 0x16 }, + { 0x5870, 0x14 }, + { 0x5871, 0x12 }, + { 0x5872, 0x10 }, + { 0x5873, 0x11 }, + { 0x5874, 0x11 }, + { 0x5875, 0x16 }, + { 0x5876, 0x14 }, + { 0x5877, 0x11 }, + { 0x5878, 0x10 }, + { 0x5879, 0xf }, + { 0x587a, 0x10 }, + { 0x587b, 0x14 }, + { 0x587c, 0x13 }, + { 0x587d, 0x12 }, + { 0x587e, 0x11 }, + { 0x587f, 0x11 }, + { 0x5880, 0x12 }, + { 0x5881, 0x15 }, + { 0x5882, 0x14 }, + { 0x5883, 0x15 }, + { 0x5884, 0x15 }, + { 0x5885, 0x15 }, + { 0x5886, 0x13 }, + { 0x5887, 0x17 }, + { 0x3710, 0x10 }, + { 0x3632, 0x51 }, + { 0x3702, 0x10 }, + { 0x3703, 0xb2 }, + { 0x3704, 0x18 }, + { 0x370b, 0x40 }, + { 0x370d, 0x3 }, + { 0x3631, 0x1 }, + { 0x3632, 0x52 }, + { 0x3606, 0x24 }, + { 0x3620, 0x96 }, + { 0x5785, 0x7 }, + { 0x3a13, 0x30 }, + { 0x3600, 0x52 }, + { 0x3604, 0x48 }, + { 0x3606, 0x1b }, + { 0x370d, 0xb }, + { 0x370f, 0xc0 }, + { 0x3709, 0x1 }, + { 0x3823, 0x0 }, + { 0x5007, 0x0 }, + { 0x5009, 0x0 }, + { 0x5011, 0x0 }, + { 0x5013, 0x0 }, + { 0x519e, 0x0 }, + { 0x5086, 0x0 }, + { 0x5087, 0x0 }, + { 0x5088, 0x0 }, + { 0x5089, 0x0 }, + { 0x302b, 0x0 }, + { 0x3503, 0x7 }, + { 0x3011, 0x8 }, + { 0x350c, 0x2 }, + { 0x350d, 0xe4 }, + { 0x3621, 0xc9 }, + { 0x370a, 0x81 }, + { 0xffff, 0xff }, +}; + +static struct regval_list ov5642_default_regs_finalise[] = { + { 0x3810, 0xc2 }, + { 0x3818, 0xc9 }, + { 0x381c, 0x10 }, + { 0x381d, 0xa0 }, + { 0x381e, 0x5 }, + { 0x381f, 0xb0 }, + { 0x3820, 0x0 }, + { 0x3821, 0x0 }, + { 0x3824, 0x11 }, + { 0x3a08, 0x1b }, + { 0x3a09, 0xc0 }, + { 0x3a0a, 0x17 }, + { 0x3a0b, 0x20 }, + { 0x3a0d, 0x2 }, + { 0x3a0e, 0x1 }, + { 0x401c, 0x4 }, + { 0x5682, 0x5 }, + { 0x5683, 0x0 }, + { 0x5686, 0x2 }, + { 0x5687, 0xcc }, + { 0x5001, 0x4f }, + { 0x589b, 0x6 }, + { 0x589a, 0xc5 }, + { 0x3503, 0x0 }, + { 0x460c, 0x20 }, + { 0x460b, 0x37 }, + { 0x471c, 0xd0 }, + { 0x471d, 0x5 }, + { 0x3815, 0x1 }, + { 0x3818, 0xc1 }, + { 0x501f, 0x0 }, + { 0x5002, 0xe0 }, + { 0x4300, 0x32 }, /* UYVY */ + { 0x3002, 0x1c }, + { 0x4800, 0x14 }, + { 0x4801, 0xf }, + { 0x3007, 0x3b }, + { 0x300e, 0x4 }, + { 0x4803, 0x50 }, + { 0x3815, 0x1 }, + { 0x4713, 0x2 }, + { 0x4842, 0x1 }, + { 0x300f, 0xe }, + { 0x3003, 0x3 }, + { 0x3003, 0x1 }, + { 0xffff, 0xff }, +}; + +struct ov5642_datafmt { + u32 code; + enum v4l2_colorspace colorspace; +}; + +struct ov5642 { + struct v4l2_subdev subdev; + const struct ov5642_datafmt *fmt; + struct v4l2_rect crop_rect; + struct v4l2_clk *clk; + + /* blanking information */ + int total_width; + int total_height; +}; + +static const struct ov5642_datafmt ov5642_colour_fmts[] = { + {MEDIA_BUS_FMT_UYVY8_2X8, V4L2_COLORSPACE_JPEG}, +}; + +static struct ov5642 *to_ov5642(const struct i2c_client *client) +{ + return container_of(i2c_get_clientdata(client), struct ov5642, subdev); +} + +/* Find a data format by a pixel code in an array */ +static const struct ov5642_datafmt + *ov5642_find_datafmt(u32 code) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(ov5642_colour_fmts); i++) + if (ov5642_colour_fmts[i].code == code) + return ov5642_colour_fmts + i; + + return NULL; +} + +static int reg_read(struct i2c_client *client, u16 reg, u8 *val) +{ + int ret; + /* We have 16-bit i2c addresses - care for endianness */ + unsigned char data[2] = { reg >> 8, reg & 0xff }; + + ret = i2c_master_send(client, data, 2); + if (ret < 2) { + dev_err(&client->dev, "%s: i2c read error, reg: %x\n", + __func__, reg); + return ret < 0 ? ret : -EIO; + } + + ret = i2c_master_recv(client, val, 1); + if (ret < 1) { + dev_err(&client->dev, "%s: i2c read error, reg: %x\n", + __func__, reg); + return ret < 0 ? ret : -EIO; + } + return 0; +} + +static int reg_write(struct i2c_client *client, u16 reg, u8 val) +{ + int ret; + unsigned char data[3] = { reg >> 8, reg & 0xff, val }; + + ret = i2c_master_send(client, data, 3); + if (ret < 3) { + dev_err(&client->dev, "%s: i2c write error, reg: %x\n", + __func__, reg); + return ret < 0 ? ret : -EIO; + } + + return 0; +} + +/* + * convenience function to write 16 bit register values that are split up + * into two consecutive high and low parts + */ +static int reg_write16(struct i2c_client *client, u16 reg, u16 val16) +{ + int ret; + + ret = reg_write(client, reg, val16 >> 8); + if (ret) + return ret; + return reg_write(client, reg + 1, val16 & 0x00ff); +} + +#ifdef CONFIG_VIDEO_ADV_DEBUG +static int ov5642_get_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + int ret; + u8 val; + + if (reg->reg & ~0xffff) + return -EINVAL; + + reg->size = 1; + + ret = reg_read(client, reg->reg, &val); + if (!ret) + reg->val = (__u64)val; + + return ret; +} + +static int ov5642_set_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (reg->reg & ~0xffff || reg->val & ~0xff) + return -EINVAL; + + return reg_write(client, reg->reg, reg->val); +} +#endif + +static int ov5642_write_array(struct i2c_client *client, + struct regval_list *vals) +{ + while (vals->reg_num != 0xffff || vals->value != 0xff) { + int ret = reg_write(client, vals->reg_num, vals->value); + if (ret < 0) + return ret; + vals++; + } + dev_dbg(&client->dev, "Register list loaded\n"); + return 0; +} + +static int ov5642_set_resolution(struct v4l2_subdev *sd) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct ov5642 *priv = to_ov5642(client); + int width = priv->crop_rect.width; + int height = priv->crop_rect.height; + int total_width = priv->total_width; + int total_height = priv->total_height; + int start_x = (OV5642_SENSOR_SIZE_X - width) / 2; + int start_y = (OV5642_SENSOR_SIZE_Y - height) / 2; + int ret; + + /* + * This should set the starting point for cropping. + * Doesn't work so far. + */ + ret = reg_write16(client, REG_WINDOW_START_X_HIGH, start_x); + if (!ret) + ret = reg_write16(client, REG_WINDOW_START_Y_HIGH, start_y); + if (!ret) { + priv->crop_rect.left = start_x; + priv->crop_rect.top = start_y; + } + + if (!ret) + ret = reg_write16(client, REG_WINDOW_WIDTH_HIGH, width); + if (!ret) + ret = reg_write16(client, REG_WINDOW_HEIGHT_HIGH, height); + if (ret) + return ret; + priv->crop_rect.width = width; + priv->crop_rect.height = height; + + /* Set the output window size. Only 1:1 scale is supported so far. */ + ret = reg_write16(client, REG_OUT_WIDTH_HIGH, width); + if (!ret) + ret = reg_write16(client, REG_OUT_HEIGHT_HIGH, height); + + /* Total width = output size + blanking */ + if (!ret) + ret = reg_write16(client, REG_OUT_TOTAL_WIDTH_HIGH, total_width); + if (!ret) + ret = reg_write16(client, REG_OUT_TOTAL_HEIGHT_HIGH, total_height); + + /* Sets the window for AWB calculations */ + if (!ret) + ret = reg_write16(client, REG_AVG_WINDOW_END_X_HIGH, width); + if (!ret) + ret = reg_write16(client, REG_AVG_WINDOW_END_Y_HIGH, height); + + return ret; +} + +static int ov5642_set_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct v4l2_mbus_framefmt *mf = &format->format; + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct ov5642 *priv = to_ov5642(client); + const struct ov5642_datafmt *fmt = ov5642_find_datafmt(mf->code); + + if (format->pad) + return -EINVAL; + + mf->width = priv->crop_rect.width; + mf->height = priv->crop_rect.height; + + if (!fmt) { + if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) + return -EINVAL; + mf->code = ov5642_colour_fmts[0].code; + mf->colorspace = ov5642_colour_fmts[0].colorspace; + } + + mf->field = V4L2_FIELD_NONE; + + if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) + priv->fmt = fmt; + else + cfg->try_fmt = *mf; + return 0; +} + +static int ov5642_get_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct v4l2_mbus_framefmt *mf = &format->format; + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct ov5642 *priv = to_ov5642(client); + + const struct ov5642_datafmt *fmt = priv->fmt; + + if (format->pad) + return -EINVAL; + + mf->code = fmt->code; + mf->colorspace = fmt->colorspace; + mf->width = priv->crop_rect.width; + mf->height = priv->crop_rect.height; + mf->field = V4L2_FIELD_NONE; + + return 0; +} + +static int ov5642_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_mbus_code_enum *code) +{ + if (code->pad || code->index >= ARRAY_SIZE(ov5642_colour_fmts)) + return -EINVAL; + + code->code = ov5642_colour_fmts[code->index].code; + return 0; +} + +static int ov5642_set_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct ov5642 *priv = to_ov5642(client); + struct v4l2_rect rect = sel->r; + int ret; + + if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE || + sel->target != V4L2_SEL_TGT_CROP) + return -EINVAL; + + v4l_bound_align_image(&rect.width, 48, OV5642_MAX_WIDTH, 1, + &rect.height, 32, OV5642_MAX_HEIGHT, 1, 0); + + priv->crop_rect.width = rect.width; + priv->crop_rect.height = rect.height; + priv->total_width = rect.width + BLANKING_EXTRA_WIDTH; + priv->total_height = max_t(int, rect.height + + BLANKING_EXTRA_HEIGHT, + BLANKING_MIN_HEIGHT); + priv->crop_rect.width = rect.width; + priv->crop_rect.height = rect.height; + + ret = ov5642_write_array(client, ov5642_default_regs_init); + if (!ret) + ret = ov5642_set_resolution(sd); + if (!ret) + ret = ov5642_write_array(client, ov5642_default_regs_finalise); + + return ret; +} + +static int ov5642_get_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct ov5642 *priv = to_ov5642(client); + + if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) + return -EINVAL; + + switch (sel->target) { + case V4L2_SEL_TGT_CROP_BOUNDS: + case V4L2_SEL_TGT_CROP_DEFAULT: + sel->r.left = 0; + sel->r.top = 0; + sel->r.width = OV5642_MAX_WIDTH; + sel->r.height = OV5642_MAX_HEIGHT; + return 0; + case V4L2_SEL_TGT_CROP: + sel->r = priv->crop_rect; + return 0; + default: + return -EINVAL; + } +} + +static int ov5642_g_mbus_config(struct v4l2_subdev *sd, + struct v4l2_mbus_config *cfg) +{ + cfg->type = V4L2_MBUS_CSI2; + cfg->flags = V4L2_MBUS_CSI2_2_LANE | V4L2_MBUS_CSI2_CHANNEL_0 | + V4L2_MBUS_CSI2_CONTINUOUS_CLOCK; + + return 0; +} + +static int ov5642_s_power(struct v4l2_subdev *sd, int on) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + struct ov5642 *priv = to_ov5642(client); + int ret; + + if (!on) + return soc_camera_power_off(&client->dev, ssdd, priv->clk); + + ret = soc_camera_power_on(&client->dev, ssdd, priv->clk); + if (ret < 0) + return ret; + + ret = ov5642_write_array(client, ov5642_default_regs_init); + if (!ret) + ret = ov5642_set_resolution(sd); + if (!ret) + ret = ov5642_write_array(client, ov5642_default_regs_finalise); + + return ret; +} + +static const struct v4l2_subdev_video_ops ov5642_subdev_video_ops = { + .g_mbus_config = ov5642_g_mbus_config, +}; + +static const struct v4l2_subdev_pad_ops ov5642_subdev_pad_ops = { + .enum_mbus_code = ov5642_enum_mbus_code, + .get_selection = ov5642_get_selection, + .set_selection = ov5642_set_selection, + .get_fmt = ov5642_get_fmt, + .set_fmt = ov5642_set_fmt, +}; + +static const struct v4l2_subdev_core_ops ov5642_subdev_core_ops = { + .s_power = ov5642_s_power, +#ifdef CONFIG_VIDEO_ADV_DEBUG + .g_register = ov5642_get_register, + .s_register = ov5642_set_register, +#endif +}; + +static const struct v4l2_subdev_ops ov5642_subdev_ops = { + .core = &ov5642_subdev_core_ops, + .video = &ov5642_subdev_video_ops, + .pad = &ov5642_subdev_pad_ops, +}; + +static int ov5642_video_probe(struct i2c_client *client) +{ + struct v4l2_subdev *subdev = i2c_get_clientdata(client); + int ret; + u8 id_high, id_low; + u16 id; + + ret = ov5642_s_power(subdev, 1); + if (ret < 0) + return ret; + + /* Read sensor Model ID */ + ret = reg_read(client, REG_CHIP_ID_HIGH, &id_high); + if (ret < 0) + goto done; + + id = id_high << 8; + + ret = reg_read(client, REG_CHIP_ID_LOW, &id_low); + if (ret < 0) + goto done; + + id |= id_low; + + dev_info(&client->dev, "Chip ID 0x%04x detected\n", id); + + if (id != 0x5642) { + ret = -ENODEV; + goto done; + } + + ret = 0; + +done: + ov5642_s_power(subdev, 0); + return ret; +} + +static int ov5642_probe(struct i2c_client *client, + const struct i2c_device_id *did) +{ + struct ov5642 *priv; + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + int ret; + + if (!ssdd) { + dev_err(&client->dev, "OV5642: missing platform data!\n"); + return -EINVAL; + } + + priv = devm_kzalloc(&client->dev, sizeof(struct ov5642), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + v4l2_i2c_subdev_init(&priv->subdev, client, &ov5642_subdev_ops); + + priv->fmt = &ov5642_colour_fmts[0]; + + priv->crop_rect.width = OV5642_DEFAULT_WIDTH; + priv->crop_rect.height = OV5642_DEFAULT_HEIGHT; + priv->crop_rect.left = (OV5642_MAX_WIDTH - OV5642_DEFAULT_WIDTH) / 2; + priv->crop_rect.top = (OV5642_MAX_HEIGHT - OV5642_DEFAULT_HEIGHT) / 2; + priv->total_width = OV5642_DEFAULT_WIDTH + BLANKING_EXTRA_WIDTH; + priv->total_height = BLANKING_MIN_HEIGHT; + + priv->clk = v4l2_clk_get(&client->dev, "mclk"); + if (IS_ERR(priv->clk)) + return PTR_ERR(priv->clk); + + ret = ov5642_video_probe(client); + if (ret < 0) + v4l2_clk_put(priv->clk); + + return ret; +} + +static int ov5642_remove(struct i2c_client *client) +{ + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + struct ov5642 *priv = to_ov5642(client); + + v4l2_clk_put(priv->clk); + if (ssdd->free_bus) + ssdd->free_bus(ssdd); + + return 0; +} + +static const struct i2c_device_id ov5642_id[] = { + { "ov5642", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, ov5642_id); + +#if IS_ENABLED(CONFIG_OF) +static const struct of_device_id ov5642_of_match[] = { + { .compatible = "ovti,ov5642" }, + { }, +}; +MODULE_DEVICE_TABLE(of, ov5642_of_match); +#endif + +static struct i2c_driver ov5642_i2c_driver = { + .driver = { + .name = "ov5642", + .of_match_table = of_match_ptr(ov5642_of_match), + }, + .probe = ov5642_probe, + .remove = ov5642_remove, + .id_table = ov5642_id, +}; + +module_i2c_driver(ov5642_i2c_driver); + +MODULE_DESCRIPTION("Omnivision OV5642 Camera driver"); +MODULE_AUTHOR("Bastian Hecht <hechtb@gmail.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/media/i2c/soc_camera/ov772x.c b/drivers/media/i2c/soc_camera/ov772x.c new file mode 100644 index 000000000..14377af7c --- /dev/null +++ b/drivers/media/i2c/soc_camera/ov772x.c @@ -0,0 +1,1124 @@ +/* + * ov772x Camera Driver + * + * Copyright (C) 2008 Renesas Solutions Corp. + * Kuninori Morimoto <morimoto.kuninori@renesas.com> + * + * Based on ov7670 and soc_camera_platform driver, + * + * Copyright 2006-7 Jonathan Corbet <corbet@lwn.net> + * Copyright (C) 2008 Magnus Damm + * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/slab.h> +#include <linux/delay.h> +#include <linux/v4l2-mediabus.h> +#include <linux/videodev2.h> + +#include <media/i2c/ov772x.h> +#include <media/soc_camera.h> +#include <media/v4l2-clk.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-subdev.h> +#include <media/v4l2-image-sizes.h> + +/* + * register offset + */ +#define GAIN 0x00 /* AGC - Gain control gain setting */ +#define BLUE 0x01 /* AWB - Blue channel gain setting */ +#define RED 0x02 /* AWB - Red channel gain setting */ +#define GREEN 0x03 /* AWB - Green channel gain setting */ +#define COM1 0x04 /* Common control 1 */ +#define BAVG 0x05 /* U/B Average Level */ +#define GAVG 0x06 /* Y/Gb Average Level */ +#define RAVG 0x07 /* V/R Average Level */ +#define AECH 0x08 /* Exposure Value - AEC MSBs */ +#define COM2 0x09 /* Common control 2 */ +#define PID 0x0A /* Product ID Number MSB */ +#define VER 0x0B /* Product ID Number LSB */ +#define COM3 0x0C /* Common control 3 */ +#define COM4 0x0D /* Common control 4 */ +#define COM5 0x0E /* Common control 5 */ +#define COM6 0x0F /* Common control 6 */ +#define AEC 0x10 /* Exposure Value */ +#define CLKRC 0x11 /* Internal clock */ +#define COM7 0x12 /* Common control 7 */ +#define COM8 0x13 /* Common control 8 */ +#define COM9 0x14 /* Common control 9 */ +#define COM10 0x15 /* Common control 10 */ +#define REG16 0x16 /* Register 16 */ +#define HSTART 0x17 /* Horizontal sensor size */ +#define HSIZE 0x18 /* Horizontal frame (HREF column) end high 8-bit */ +#define VSTART 0x19 /* Vertical frame (row) start high 8-bit */ +#define VSIZE 0x1A /* Vertical sensor size */ +#define PSHFT 0x1B /* Data format - pixel delay select */ +#define MIDH 0x1C /* Manufacturer ID byte - high */ +#define MIDL 0x1D /* Manufacturer ID byte - low */ +#define LAEC 0x1F /* Fine AEC value */ +#define COM11 0x20 /* Common control 11 */ +#define BDBASE 0x22 /* Banding filter Minimum AEC value */ +#define DBSTEP 0x23 /* Banding filter Maximum Setp */ +#define AEW 0x24 /* AGC/AEC - Stable operating region (upper limit) */ +#define AEB 0x25 /* AGC/AEC - Stable operating region (lower limit) */ +#define VPT 0x26 /* AGC/AEC Fast mode operating region */ +#define REG28 0x28 /* Register 28 */ +#define HOUTSIZE 0x29 /* Horizontal data output size MSBs */ +#define EXHCH 0x2A /* Dummy pixel insert MSB */ +#define EXHCL 0x2B /* Dummy pixel insert LSB */ +#define VOUTSIZE 0x2C /* Vertical data output size MSBs */ +#define ADVFL 0x2D /* LSB of insert dummy lines in Vertical direction */ +#define ADVFH 0x2E /* MSG of insert dummy lines in Vertical direction */ +#define YAVE 0x2F /* Y/G Channel Average value */ +#define LUMHTH 0x30 /* Histogram AEC/AGC Luminance high level threshold */ +#define LUMLTH 0x31 /* Histogram AEC/AGC Luminance low level threshold */ +#define HREF 0x32 /* Image start and size control */ +#define DM_LNL 0x33 /* Dummy line low 8 bits */ +#define DM_LNH 0x34 /* Dummy line high 8 bits */ +#define ADOFF_B 0x35 /* AD offset compensation value for B channel */ +#define ADOFF_R 0x36 /* AD offset compensation value for R channel */ +#define ADOFF_GB 0x37 /* AD offset compensation value for Gb channel */ +#define ADOFF_GR 0x38 /* AD offset compensation value for Gr channel */ +#define OFF_B 0x39 /* Analog process B channel offset value */ +#define OFF_R 0x3A /* Analog process R channel offset value */ +#define OFF_GB 0x3B /* Analog process Gb channel offset value */ +#define OFF_GR 0x3C /* Analog process Gr channel offset value */ +#define COM12 0x3D /* Common control 12 */ +#define COM13 0x3E /* Common control 13 */ +#define COM14 0x3F /* Common control 14 */ +#define COM15 0x40 /* Common control 15*/ +#define COM16 0x41 /* Common control 16 */ +#define TGT_B 0x42 /* BLC blue channel target value */ +#define TGT_R 0x43 /* BLC red channel target value */ +#define TGT_GB 0x44 /* BLC Gb channel target value */ +#define TGT_GR 0x45 /* BLC Gr channel target value */ +/* for ov7720 */ +#define LCC0 0x46 /* Lens correction control 0 */ +#define LCC1 0x47 /* Lens correction option 1 - X coordinate */ +#define LCC2 0x48 /* Lens correction option 2 - Y coordinate */ +#define LCC3 0x49 /* Lens correction option 3 */ +#define LCC4 0x4A /* Lens correction option 4 - radius of the circular */ +#define LCC5 0x4B /* Lens correction option 5 */ +#define LCC6 0x4C /* Lens correction option 6 */ +/* for ov7725 */ +#define LC_CTR 0x46 /* Lens correction control */ +#define LC_XC 0x47 /* X coordinate of lens correction center relative */ +#define LC_YC 0x48 /* Y coordinate of lens correction center relative */ +#define LC_COEF 0x49 /* Lens correction coefficient */ +#define LC_RADI 0x4A /* Lens correction radius */ +#define LC_COEFB 0x4B /* Lens B channel compensation coefficient */ +#define LC_COEFR 0x4C /* Lens R channel compensation coefficient */ + +#define FIXGAIN 0x4D /* Analog fix gain amplifer */ +#define AREF0 0x4E /* Sensor reference control */ +#define AREF1 0x4F /* Sensor reference current control */ +#define AREF2 0x50 /* Analog reference control */ +#define AREF3 0x51 /* ADC reference control */ +#define AREF4 0x52 /* ADC reference control */ +#define AREF5 0x53 /* ADC reference control */ +#define AREF6 0x54 /* Analog reference control */ +#define AREF7 0x55 /* Analog reference control */ +#define UFIX 0x60 /* U channel fixed value output */ +#define VFIX 0x61 /* V channel fixed value output */ +#define AWBB_BLK 0x62 /* AWB option for advanced AWB */ +#define AWB_CTRL0 0x63 /* AWB control byte 0 */ +#define DSP_CTRL1 0x64 /* DSP control byte 1 */ +#define DSP_CTRL2 0x65 /* DSP control byte 2 */ +#define DSP_CTRL3 0x66 /* DSP control byte 3 */ +#define DSP_CTRL4 0x67 /* DSP control byte 4 */ +#define AWB_BIAS 0x68 /* AWB BLC level clip */ +#define AWB_CTRL1 0x69 /* AWB control 1 */ +#define AWB_CTRL2 0x6A /* AWB control 2 */ +#define AWB_CTRL3 0x6B /* AWB control 3 */ +#define AWB_CTRL4 0x6C /* AWB control 4 */ +#define AWB_CTRL5 0x6D /* AWB control 5 */ +#define AWB_CTRL6 0x6E /* AWB control 6 */ +#define AWB_CTRL7 0x6F /* AWB control 7 */ +#define AWB_CTRL8 0x70 /* AWB control 8 */ +#define AWB_CTRL9 0x71 /* AWB control 9 */ +#define AWB_CTRL10 0x72 /* AWB control 10 */ +#define AWB_CTRL11 0x73 /* AWB control 11 */ +#define AWB_CTRL12 0x74 /* AWB control 12 */ +#define AWB_CTRL13 0x75 /* AWB control 13 */ +#define AWB_CTRL14 0x76 /* AWB control 14 */ +#define AWB_CTRL15 0x77 /* AWB control 15 */ +#define AWB_CTRL16 0x78 /* AWB control 16 */ +#define AWB_CTRL17 0x79 /* AWB control 17 */ +#define AWB_CTRL18 0x7A /* AWB control 18 */ +#define AWB_CTRL19 0x7B /* AWB control 19 */ +#define AWB_CTRL20 0x7C /* AWB control 20 */ +#define AWB_CTRL21 0x7D /* AWB control 21 */ +#define GAM1 0x7E /* Gamma Curve 1st segment input end point */ +#define GAM2 0x7F /* Gamma Curve 2nd segment input end point */ +#define GAM3 0x80 /* Gamma Curve 3rd segment input end point */ +#define GAM4 0x81 /* Gamma Curve 4th segment input end point */ +#define GAM5 0x82 /* Gamma Curve 5th segment input end point */ +#define GAM6 0x83 /* Gamma Curve 6th segment input end point */ +#define GAM7 0x84 /* Gamma Curve 7th segment input end point */ +#define GAM8 0x85 /* Gamma Curve 8th segment input end point */ +#define GAM9 0x86 /* Gamma Curve 9th segment input end point */ +#define GAM10 0x87 /* Gamma Curve 10th segment input end point */ +#define GAM11 0x88 /* Gamma Curve 11th segment input end point */ +#define GAM12 0x89 /* Gamma Curve 12th segment input end point */ +#define GAM13 0x8A /* Gamma Curve 13th segment input end point */ +#define GAM14 0x8B /* Gamma Curve 14th segment input end point */ +#define GAM15 0x8C /* Gamma Curve 15th segment input end point */ +#define SLOP 0x8D /* Gamma curve highest segment slope */ +#define DNSTH 0x8E /* De-noise threshold */ +#define EDGE_STRNGT 0x8F /* Edge strength control when manual mode */ +#define EDGE_TRSHLD 0x90 /* Edge threshold control when manual mode */ +#define DNSOFF 0x91 /* Auto De-noise threshold control */ +#define EDGE_UPPER 0x92 /* Edge strength upper limit when Auto mode */ +#define EDGE_LOWER 0x93 /* Edge strength lower limit when Auto mode */ +#define MTX1 0x94 /* Matrix coefficient 1 */ +#define MTX2 0x95 /* Matrix coefficient 2 */ +#define MTX3 0x96 /* Matrix coefficient 3 */ +#define MTX4 0x97 /* Matrix coefficient 4 */ +#define MTX5 0x98 /* Matrix coefficient 5 */ +#define MTX6 0x99 /* Matrix coefficient 6 */ +#define MTX_CTRL 0x9A /* Matrix control */ +#define BRIGHT 0x9B /* Brightness control */ +#define CNTRST 0x9C /* Contrast contrast */ +#define CNTRST_CTRL 0x9D /* Contrast contrast center */ +#define UVAD_J0 0x9E /* Auto UV adjust contrast 0 */ +#define UVAD_J1 0x9F /* Auto UV adjust contrast 1 */ +#define SCAL0 0xA0 /* Scaling control 0 */ +#define SCAL1 0xA1 /* Scaling control 1 */ +#define SCAL2 0xA2 /* Scaling control 2 */ +#define FIFODLYM 0xA3 /* FIFO manual mode delay control */ +#define FIFODLYA 0xA4 /* FIFO auto mode delay control */ +#define SDE 0xA6 /* Special digital effect control */ +#define USAT 0xA7 /* U component saturation control */ +#define VSAT 0xA8 /* V component saturation control */ +/* for ov7720 */ +#define HUE0 0xA9 /* Hue control 0 */ +#define HUE1 0xAA /* Hue control 1 */ +/* for ov7725 */ +#define HUECOS 0xA9 /* Cosine value */ +#define HUESIN 0xAA /* Sine value */ + +#define SIGN 0xAB /* Sign bit for Hue and contrast */ +#define DSPAUTO 0xAC /* DSP auto function ON/OFF control */ + +/* + * register detail + */ + +/* COM2 */ +#define SOFT_SLEEP_MODE 0x10 /* Soft sleep mode */ + /* Output drive capability */ +#define OCAP_1x 0x00 /* 1x */ +#define OCAP_2x 0x01 /* 2x */ +#define OCAP_3x 0x02 /* 3x */ +#define OCAP_4x 0x03 /* 4x */ + +/* COM3 */ +#define SWAP_MASK (SWAP_RGB | SWAP_YUV | SWAP_ML) +#define IMG_MASK (VFLIP_IMG | HFLIP_IMG) + +#define VFLIP_IMG 0x80 /* Vertical flip image ON/OFF selection */ +#define HFLIP_IMG 0x40 /* Horizontal mirror image ON/OFF selection */ +#define SWAP_RGB 0x20 /* Swap B/R output sequence in RGB mode */ +#define SWAP_YUV 0x10 /* Swap Y/UV output sequence in YUV mode */ +#define SWAP_ML 0x08 /* Swap output MSB/LSB */ + /* Tri-state option for output clock */ +#define NOTRI_CLOCK 0x04 /* 0: Tri-state at this period */ + /* 1: No tri-state at this period */ + /* Tri-state option for output data */ +#define NOTRI_DATA 0x02 /* 0: Tri-state at this period */ + /* 1: No tri-state at this period */ +#define SCOLOR_TEST 0x01 /* Sensor color bar test pattern */ + +/* COM4 */ + /* PLL frequency control */ +#define PLL_BYPASS 0x00 /* 00: Bypass PLL */ +#define PLL_4x 0x40 /* 01: PLL 4x */ +#define PLL_6x 0x80 /* 10: PLL 6x */ +#define PLL_8x 0xc0 /* 11: PLL 8x */ + /* AEC evaluate window */ +#define AEC_FULL 0x00 /* 00: Full window */ +#define AEC_1p2 0x10 /* 01: 1/2 window */ +#define AEC_1p4 0x20 /* 10: 1/4 window */ +#define AEC_2p3 0x30 /* 11: Low 2/3 window */ + +/* COM5 */ +#define AFR_ON_OFF 0x80 /* Auto frame rate control ON/OFF selection */ +#define AFR_SPPED 0x40 /* Auto frame rate control speed selection */ + /* Auto frame rate max rate control */ +#define AFR_NO_RATE 0x00 /* No reduction of frame rate */ +#define AFR_1p2 0x10 /* Max reduction to 1/2 frame rate */ +#define AFR_1p4 0x20 /* Max reduction to 1/4 frame rate */ +#define AFR_1p8 0x30 /* Max reduction to 1/8 frame rate */ + /* Auto frame rate active point control */ +#define AF_2x 0x00 /* Add frame when AGC reaches 2x gain */ +#define AF_4x 0x04 /* Add frame when AGC reaches 4x gain */ +#define AF_8x 0x08 /* Add frame when AGC reaches 8x gain */ +#define AF_16x 0x0c /* Add frame when AGC reaches 16x gain */ + /* AEC max step control */ +#define AEC_NO_LIMIT 0x01 /* 0 : AEC incease step has limit */ + /* 1 : No limit to AEC increase step */ + +/* COM7 */ + /* SCCB Register Reset */ +#define SCCB_RESET 0x80 /* 0 : No change */ + /* 1 : Resets all registers to default */ + /* Resolution selection */ +#define SLCT_MASK 0x40 /* Mask of VGA or QVGA */ +#define SLCT_VGA 0x00 /* 0 : VGA */ +#define SLCT_QVGA 0x40 /* 1 : QVGA */ +#define ITU656_ON_OFF 0x20 /* ITU656 protocol ON/OFF selection */ +#define SENSOR_RAW 0x10 /* Sensor RAW */ + /* RGB output format control */ +#define FMT_MASK 0x0c /* Mask of color format */ +#define FMT_GBR422 0x00 /* 00 : GBR 4:2:2 */ +#define FMT_RGB565 0x04 /* 01 : RGB 565 */ +#define FMT_RGB555 0x08 /* 10 : RGB 555 */ +#define FMT_RGB444 0x0c /* 11 : RGB 444 */ + /* Output format control */ +#define OFMT_MASK 0x03 /* Mask of output format */ +#define OFMT_YUV 0x00 /* 00 : YUV */ +#define OFMT_P_BRAW 0x01 /* 01 : Processed Bayer RAW */ +#define OFMT_RGB 0x02 /* 10 : RGB */ +#define OFMT_BRAW 0x03 /* 11 : Bayer RAW */ + +/* COM8 */ +#define FAST_ALGO 0x80 /* Enable fast AGC/AEC algorithm */ + /* AEC Setp size limit */ +#define UNLMT_STEP 0x40 /* 0 : Step size is limited */ + /* 1 : Unlimited step size */ +#define BNDF_ON_OFF 0x20 /* Banding filter ON/OFF */ +#define AEC_BND 0x10 /* Enable AEC below banding value */ +#define AEC_ON_OFF 0x08 /* Fine AEC ON/OFF control */ +#define AGC_ON 0x04 /* AGC Enable */ +#define AWB_ON 0x02 /* AWB Enable */ +#define AEC_ON 0x01 /* AEC Enable */ + +/* COM9 */ +#define BASE_AECAGC 0x80 /* Histogram or average based AEC/AGC */ + /* Automatic gain ceiling - maximum AGC value */ +#define GAIN_2x 0x00 /* 000 : 2x */ +#define GAIN_4x 0x10 /* 001 : 4x */ +#define GAIN_8x 0x20 /* 010 : 8x */ +#define GAIN_16x 0x30 /* 011 : 16x */ +#define GAIN_32x 0x40 /* 100 : 32x */ +#define GAIN_64x 0x50 /* 101 : 64x */ +#define GAIN_128x 0x60 /* 110 : 128x */ +#define DROP_VSYNC 0x04 /* Drop VSYNC output of corrupt frame */ +#define DROP_HREF 0x02 /* Drop HREF output of corrupt frame */ + +/* COM11 */ +#define SGLF_ON_OFF 0x02 /* Single frame ON/OFF selection */ +#define SGLF_TRIG 0x01 /* Single frame transfer trigger */ + +/* HREF */ +#define HREF_VSTART_SHIFT 6 /* VSTART LSB */ +#define HREF_HSTART_SHIFT 4 /* HSTART 2 LSBs */ +#define HREF_VSIZE_SHIFT 2 /* VSIZE LSB */ +#define HREF_HSIZE_SHIFT 0 /* HSIZE 2 LSBs */ + +/* EXHCH */ +#define EXHCH_VSIZE_SHIFT 2 /* VOUTSIZE LSB */ +#define EXHCH_HSIZE_SHIFT 0 /* HOUTSIZE 2 LSBs */ + +/* DSP_CTRL1 */ +#define FIFO_ON 0x80 /* FIFO enable/disable selection */ +#define UV_ON_OFF 0x40 /* UV adjust function ON/OFF selection */ +#define YUV444_2_422 0x20 /* YUV444 to 422 UV channel option selection */ +#define CLR_MTRX_ON_OFF 0x10 /* Color matrix ON/OFF selection */ +#define INTPLT_ON_OFF 0x08 /* Interpolation ON/OFF selection */ +#define GMM_ON_OFF 0x04 /* Gamma function ON/OFF selection */ +#define AUTO_BLK_ON_OFF 0x02 /* Black defect auto correction ON/OFF */ +#define AUTO_WHT_ON_OFF 0x01 /* White define auto correction ON/OFF */ + +/* DSP_CTRL3 */ +#define UV_MASK 0x80 /* UV output sequence option */ +#define UV_ON 0x80 /* ON */ +#define UV_OFF 0x00 /* OFF */ +#define CBAR_MASK 0x20 /* DSP Color bar mask */ +#define CBAR_ON 0x20 /* ON */ +#define CBAR_OFF 0x00 /* OFF */ + +/* DSP_CTRL4 */ +#define DSP_OFMT_YUV 0x00 +#define DSP_OFMT_RGB 0x00 +#define DSP_OFMT_RAW8 0x02 +#define DSP_OFMT_RAW10 0x03 + +/* DSPAUTO (DSP Auto Function ON/OFF Control) */ +#define AWB_ACTRL 0x80 /* AWB auto threshold control */ +#define DENOISE_ACTRL 0x40 /* De-noise auto threshold control */ +#define EDGE_ACTRL 0x20 /* Edge enhancement auto strength control */ +#define UV_ACTRL 0x10 /* UV adjust auto slope control */ +#define SCAL0_ACTRL 0x08 /* Auto scaling factor control */ +#define SCAL1_2_ACTRL 0x04 /* Auto scaling factor control */ + +#define OV772X_MAX_WIDTH VGA_WIDTH +#define OV772X_MAX_HEIGHT VGA_HEIGHT + +/* + * ID + */ +#define OV7720 0x7720 +#define OV7725 0x7721 +#define VERSION(pid, ver) ((pid<<8)|(ver&0xFF)) + +/* + * struct + */ + +struct ov772x_color_format { + u32 code; + enum v4l2_colorspace colorspace; + u8 dsp3; + u8 dsp4; + u8 com3; + u8 com7; +}; + +struct ov772x_win_size { + char *name; + unsigned char com7_bit; + struct v4l2_rect rect; +}; + +struct ov772x_priv { + struct v4l2_subdev subdev; + struct v4l2_ctrl_handler hdl; + struct v4l2_clk *clk; + struct ov772x_camera_info *info; + const struct ov772x_color_format *cfmt; + const struct ov772x_win_size *win; + unsigned short flag_vflip:1; + unsigned short flag_hflip:1; + /* band_filter = COM8[5] ? 256 - BDBASE : 0 */ + unsigned short band_filter; +}; + +/* + * supported color format list + */ +static const struct ov772x_color_format ov772x_cfmts[] = { + { + .code = MEDIA_BUS_FMT_YUYV8_2X8, + .colorspace = V4L2_COLORSPACE_JPEG, + .dsp3 = 0x0, + .dsp4 = DSP_OFMT_YUV, + .com3 = SWAP_YUV, + .com7 = OFMT_YUV, + }, + { + .code = MEDIA_BUS_FMT_YVYU8_2X8, + .colorspace = V4L2_COLORSPACE_JPEG, + .dsp3 = UV_ON, + .dsp4 = DSP_OFMT_YUV, + .com3 = SWAP_YUV, + .com7 = OFMT_YUV, + }, + { + .code = MEDIA_BUS_FMT_UYVY8_2X8, + .colorspace = V4L2_COLORSPACE_JPEG, + .dsp3 = 0x0, + .dsp4 = DSP_OFMT_YUV, + .com3 = 0x0, + .com7 = OFMT_YUV, + }, + { + .code = MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE, + .colorspace = V4L2_COLORSPACE_SRGB, + .dsp3 = 0x0, + .dsp4 = DSP_OFMT_YUV, + .com3 = SWAP_RGB, + .com7 = FMT_RGB555 | OFMT_RGB, + }, + { + .code = MEDIA_BUS_FMT_RGB555_2X8_PADHI_BE, + .colorspace = V4L2_COLORSPACE_SRGB, + .dsp3 = 0x0, + .dsp4 = DSP_OFMT_YUV, + .com3 = 0x0, + .com7 = FMT_RGB555 | OFMT_RGB, + }, + { + .code = MEDIA_BUS_FMT_RGB565_2X8_LE, + .colorspace = V4L2_COLORSPACE_SRGB, + .dsp3 = 0x0, + .dsp4 = DSP_OFMT_YUV, + .com3 = SWAP_RGB, + .com7 = FMT_RGB565 | OFMT_RGB, + }, + { + .code = MEDIA_BUS_FMT_RGB565_2X8_BE, + .colorspace = V4L2_COLORSPACE_SRGB, + .dsp3 = 0x0, + .dsp4 = DSP_OFMT_YUV, + .com3 = 0x0, + .com7 = FMT_RGB565 | OFMT_RGB, + }, + { + /* Setting DSP4 to DSP_OFMT_RAW8 still gives 10-bit output, + * regardless of the COM7 value. We can thus only support 10-bit + * Bayer until someone figures it out. + */ + .code = MEDIA_BUS_FMT_SBGGR10_1X10, + .colorspace = V4L2_COLORSPACE_SRGB, + .dsp3 = 0x0, + .dsp4 = DSP_OFMT_RAW10, + .com3 = 0x0, + .com7 = SENSOR_RAW | OFMT_BRAW, + }, +}; + + +/* + * window size list + */ + +static const struct ov772x_win_size ov772x_win_sizes[] = { + { + .name = "VGA", + .com7_bit = SLCT_VGA, + .rect = { + .left = 140, + .top = 14, + .width = VGA_WIDTH, + .height = VGA_HEIGHT, + }, + }, { + .name = "QVGA", + .com7_bit = SLCT_QVGA, + .rect = { + .left = 252, + .top = 6, + .width = QVGA_WIDTH, + .height = QVGA_HEIGHT, + }, + }, +}; + +/* + * general function + */ + +static struct ov772x_priv *to_ov772x(struct v4l2_subdev *sd) +{ + return container_of(sd, struct ov772x_priv, subdev); +} + +static inline int ov772x_read(struct i2c_client *client, u8 addr) +{ + return i2c_smbus_read_byte_data(client, addr); +} + +static inline int ov772x_write(struct i2c_client *client, u8 addr, u8 value) +{ + return i2c_smbus_write_byte_data(client, addr, value); +} + +static int ov772x_mask_set(struct i2c_client *client, u8 command, u8 mask, + u8 set) +{ + s32 val = ov772x_read(client, command); + if (val < 0) + return val; + + val &= ~mask; + val |= set & mask; + + return ov772x_write(client, command, val); +} + +static int ov772x_reset(struct i2c_client *client) +{ + int ret; + + ret = ov772x_write(client, COM7, SCCB_RESET); + if (ret < 0) + return ret; + + msleep(1); + + return ov772x_mask_set(client, COM2, SOFT_SLEEP_MODE, SOFT_SLEEP_MODE); +} + +/* + * soc_camera_ops function + */ + +static int ov772x_s_stream(struct v4l2_subdev *sd, int enable) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct ov772x_priv *priv = to_ov772x(sd); + + if (!enable) { + ov772x_mask_set(client, COM2, SOFT_SLEEP_MODE, SOFT_SLEEP_MODE); + return 0; + } + + ov772x_mask_set(client, COM2, SOFT_SLEEP_MODE, 0); + + dev_dbg(&client->dev, "format %d, win %s\n", + priv->cfmt->code, priv->win->name); + + return 0; +} + +static int ov772x_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct ov772x_priv *priv = container_of(ctrl->handler, + struct ov772x_priv, hdl); + struct v4l2_subdev *sd = &priv->subdev; + struct i2c_client *client = v4l2_get_subdevdata(sd); + int ret = 0; + u8 val; + + switch (ctrl->id) { + case V4L2_CID_VFLIP: + val = ctrl->val ? VFLIP_IMG : 0x00; + priv->flag_vflip = ctrl->val; + if (priv->info->flags & OV772X_FLAG_VFLIP) + val ^= VFLIP_IMG; + return ov772x_mask_set(client, COM3, VFLIP_IMG, val); + case V4L2_CID_HFLIP: + val = ctrl->val ? HFLIP_IMG : 0x00; + priv->flag_hflip = ctrl->val; + if (priv->info->flags & OV772X_FLAG_HFLIP) + val ^= HFLIP_IMG; + return ov772x_mask_set(client, COM3, HFLIP_IMG, val); + case V4L2_CID_BAND_STOP_FILTER: + if (!ctrl->val) { + /* Switch the filter off, it is on now */ + ret = ov772x_mask_set(client, BDBASE, 0xff, 0xff); + if (!ret) + ret = ov772x_mask_set(client, COM8, + BNDF_ON_OFF, 0); + } else { + /* Switch the filter on, set AEC low limit */ + val = 256 - ctrl->val; + ret = ov772x_mask_set(client, COM8, + BNDF_ON_OFF, BNDF_ON_OFF); + if (!ret) + ret = ov772x_mask_set(client, BDBASE, + 0xff, val); + } + if (!ret) + priv->band_filter = ctrl->val; + return ret; + } + + return -EINVAL; +} + +#ifdef CONFIG_VIDEO_ADV_DEBUG +static int ov772x_g_register(struct v4l2_subdev *sd, + struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + int ret; + + reg->size = 1; + if (reg->reg > 0xff) + return -EINVAL; + + ret = ov772x_read(client, reg->reg); + if (ret < 0) + return ret; + + reg->val = (__u64)ret; + + return 0; +} + +static int ov772x_s_register(struct v4l2_subdev *sd, + const struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (reg->reg > 0xff || + reg->val > 0xff) + return -EINVAL; + + return ov772x_write(client, reg->reg, reg->val); +} +#endif + +static int ov772x_s_power(struct v4l2_subdev *sd, int on) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + struct ov772x_priv *priv = to_ov772x(sd); + + return soc_camera_set_power(&client->dev, ssdd, priv->clk, on); +} + +static const struct ov772x_win_size *ov772x_select_win(u32 width, u32 height) +{ + const struct ov772x_win_size *win = &ov772x_win_sizes[0]; + u32 best_diff = UINT_MAX; + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(ov772x_win_sizes); ++i) { + u32 diff = abs(width - ov772x_win_sizes[i].rect.width) + + abs(height - ov772x_win_sizes[i].rect.height); + if (diff < best_diff) { + best_diff = diff; + win = &ov772x_win_sizes[i]; + } + } + + return win; +} + +static void ov772x_select_params(const struct v4l2_mbus_framefmt *mf, + const struct ov772x_color_format **cfmt, + const struct ov772x_win_size **win) +{ + unsigned int i; + + /* Select a format. */ + *cfmt = &ov772x_cfmts[0]; + + for (i = 0; i < ARRAY_SIZE(ov772x_cfmts); i++) { + if (mf->code == ov772x_cfmts[i].code) { + *cfmt = &ov772x_cfmts[i]; + break; + } + } + + /* Select a window size. */ + *win = ov772x_select_win(mf->width, mf->height); +} + +static int ov772x_set_params(struct ov772x_priv *priv, + const struct ov772x_color_format *cfmt, + const struct ov772x_win_size *win) +{ + struct i2c_client *client = v4l2_get_subdevdata(&priv->subdev); + int ret; + u8 val; + + /* + * reset hardware + */ + ov772x_reset(client); + + /* + * Edge Ctrl + */ + if (priv->info->edgectrl.strength & OV772X_MANUAL_EDGE_CTRL) { + + /* + * Manual Edge Control Mode + * + * Edge auto strength bit is set by default. + * Remove it when manual mode. + */ + + ret = ov772x_mask_set(client, DSPAUTO, EDGE_ACTRL, 0x00); + if (ret < 0) + goto ov772x_set_fmt_error; + + ret = ov772x_mask_set(client, + EDGE_TRSHLD, OV772X_EDGE_THRESHOLD_MASK, + priv->info->edgectrl.threshold); + if (ret < 0) + goto ov772x_set_fmt_error; + + ret = ov772x_mask_set(client, + EDGE_STRNGT, OV772X_EDGE_STRENGTH_MASK, + priv->info->edgectrl.strength); + if (ret < 0) + goto ov772x_set_fmt_error; + + } else if (priv->info->edgectrl.upper > priv->info->edgectrl.lower) { + /* + * Auto Edge Control Mode + * + * set upper and lower limit + */ + ret = ov772x_mask_set(client, + EDGE_UPPER, OV772X_EDGE_UPPER_MASK, + priv->info->edgectrl.upper); + if (ret < 0) + goto ov772x_set_fmt_error; + + ret = ov772x_mask_set(client, + EDGE_LOWER, OV772X_EDGE_LOWER_MASK, + priv->info->edgectrl.lower); + if (ret < 0) + goto ov772x_set_fmt_error; + } + + /* Format and window size */ + ret = ov772x_write(client, HSTART, win->rect.left >> 2); + if (ret < 0) + goto ov772x_set_fmt_error; + ret = ov772x_write(client, HSIZE, win->rect.width >> 2); + if (ret < 0) + goto ov772x_set_fmt_error; + ret = ov772x_write(client, VSTART, win->rect.top >> 1); + if (ret < 0) + goto ov772x_set_fmt_error; + ret = ov772x_write(client, VSIZE, win->rect.height >> 1); + if (ret < 0) + goto ov772x_set_fmt_error; + ret = ov772x_write(client, HOUTSIZE, win->rect.width >> 2); + if (ret < 0) + goto ov772x_set_fmt_error; + ret = ov772x_write(client, VOUTSIZE, win->rect.height >> 1); + if (ret < 0) + goto ov772x_set_fmt_error; + ret = ov772x_write(client, HREF, + ((win->rect.top & 1) << HREF_VSTART_SHIFT) | + ((win->rect.left & 3) << HREF_HSTART_SHIFT) | + ((win->rect.height & 1) << HREF_VSIZE_SHIFT) | + ((win->rect.width & 3) << HREF_HSIZE_SHIFT)); + if (ret < 0) + goto ov772x_set_fmt_error; + ret = ov772x_write(client, EXHCH, + ((win->rect.height & 1) << EXHCH_VSIZE_SHIFT) | + ((win->rect.width & 3) << EXHCH_HSIZE_SHIFT)); + if (ret < 0) + goto ov772x_set_fmt_error; + + /* + * set DSP_CTRL3 + */ + val = cfmt->dsp3; + if (val) { + ret = ov772x_mask_set(client, + DSP_CTRL3, UV_MASK, val); + if (ret < 0) + goto ov772x_set_fmt_error; + } + + /* DSP_CTRL4: AEC reference point and DSP output format. */ + if (cfmt->dsp4) { + ret = ov772x_write(client, DSP_CTRL4, cfmt->dsp4); + if (ret < 0) + goto ov772x_set_fmt_error; + } + + /* + * set COM3 + */ + val = cfmt->com3; + if (priv->info->flags & OV772X_FLAG_VFLIP) + val |= VFLIP_IMG; + if (priv->info->flags & OV772X_FLAG_HFLIP) + val |= HFLIP_IMG; + if (priv->flag_vflip) + val ^= VFLIP_IMG; + if (priv->flag_hflip) + val ^= HFLIP_IMG; + + ret = ov772x_mask_set(client, + COM3, SWAP_MASK | IMG_MASK, val); + if (ret < 0) + goto ov772x_set_fmt_error; + + /* COM7: Sensor resolution and output format control. */ + ret = ov772x_write(client, COM7, win->com7_bit | cfmt->com7); + if (ret < 0) + goto ov772x_set_fmt_error; + + /* + * set COM8 + */ + if (priv->band_filter) { + ret = ov772x_mask_set(client, COM8, BNDF_ON_OFF, BNDF_ON_OFF); + if (!ret) + ret = ov772x_mask_set(client, BDBASE, + 0xff, 256 - priv->band_filter); + if (ret < 0) + goto ov772x_set_fmt_error; + } + + return ret; + +ov772x_set_fmt_error: + + ov772x_reset(client); + + return ret; +} + +static int ov772x_get_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel) +{ + if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) + return -EINVAL; + + sel->r.left = 0; + sel->r.top = 0; + switch (sel->target) { + case V4L2_SEL_TGT_CROP_BOUNDS: + case V4L2_SEL_TGT_CROP_DEFAULT: + sel->r.width = OV772X_MAX_WIDTH; + sel->r.height = OV772X_MAX_HEIGHT; + return 0; + case V4L2_SEL_TGT_CROP: + sel->r.width = VGA_WIDTH; + sel->r.height = VGA_HEIGHT; + return 0; + default: + return -EINVAL; + } +} + +static int ov772x_get_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct v4l2_mbus_framefmt *mf = &format->format; + struct ov772x_priv *priv = to_ov772x(sd); + + if (format->pad) + return -EINVAL; + + mf->width = priv->win->rect.width; + mf->height = priv->win->rect.height; + mf->code = priv->cfmt->code; + mf->colorspace = priv->cfmt->colorspace; + mf->field = V4L2_FIELD_NONE; + + return 0; +} + +static int ov772x_set_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct ov772x_priv *priv = to_ov772x(sd); + struct v4l2_mbus_framefmt *mf = &format->format; + const struct ov772x_color_format *cfmt; + const struct ov772x_win_size *win; + int ret; + + if (format->pad) + return -EINVAL; + + ov772x_select_params(mf, &cfmt, &win); + + mf->code = cfmt->code; + mf->width = win->rect.width; + mf->height = win->rect.height; + mf->field = V4L2_FIELD_NONE; + mf->colorspace = cfmt->colorspace; + + if (format->which == V4L2_SUBDEV_FORMAT_TRY) { + cfg->try_fmt = *mf; + return 0; + } + + ret = ov772x_set_params(priv, cfmt, win); + if (ret < 0) + return ret; + + priv->win = win; + priv->cfmt = cfmt; + return 0; +} + +static int ov772x_video_probe(struct ov772x_priv *priv) +{ + struct i2c_client *client = v4l2_get_subdevdata(&priv->subdev); + u8 pid, ver; + const char *devname; + int ret; + + ret = ov772x_s_power(&priv->subdev, 1); + if (ret < 0) + return ret; + + /* + * check and show product ID and manufacturer ID + */ + pid = ov772x_read(client, PID); + ver = ov772x_read(client, VER); + + switch (VERSION(pid, ver)) { + case OV7720: + devname = "ov7720"; + break; + case OV7725: + devname = "ov7725"; + break; + default: + dev_err(&client->dev, + "Product ID error %x:%x\n", pid, ver); + ret = -ENODEV; + goto done; + } + + dev_info(&client->dev, + "%s Product ID %0x:%0x Manufacturer ID %x:%x\n", + devname, + pid, + ver, + ov772x_read(client, MIDH), + ov772x_read(client, MIDL)); + ret = v4l2_ctrl_handler_setup(&priv->hdl); + +done: + ov772x_s_power(&priv->subdev, 0); + return ret; +} + +static const struct v4l2_ctrl_ops ov772x_ctrl_ops = { + .s_ctrl = ov772x_s_ctrl, +}; + +static const struct v4l2_subdev_core_ops ov772x_subdev_core_ops = { +#ifdef CONFIG_VIDEO_ADV_DEBUG + .g_register = ov772x_g_register, + .s_register = ov772x_s_register, +#endif + .s_power = ov772x_s_power, +}; + +static int ov772x_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_mbus_code_enum *code) +{ + if (code->pad || code->index >= ARRAY_SIZE(ov772x_cfmts)) + return -EINVAL; + + code->code = ov772x_cfmts[code->index].code; + return 0; +} + +static int ov772x_g_mbus_config(struct v4l2_subdev *sd, + struct v4l2_mbus_config *cfg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + + cfg->flags = V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_MASTER | + V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_HIGH | + V4L2_MBUS_DATA_ACTIVE_HIGH; + cfg->type = V4L2_MBUS_PARALLEL; + cfg->flags = soc_camera_apply_board_flags(ssdd, cfg); + + return 0; +} + +static const struct v4l2_subdev_video_ops ov772x_subdev_video_ops = { + .s_stream = ov772x_s_stream, + .g_mbus_config = ov772x_g_mbus_config, +}; + +static const struct v4l2_subdev_pad_ops ov772x_subdev_pad_ops = { + .enum_mbus_code = ov772x_enum_mbus_code, + .get_selection = ov772x_get_selection, + .get_fmt = ov772x_get_fmt, + .set_fmt = ov772x_set_fmt, +}; + +static const struct v4l2_subdev_ops ov772x_subdev_ops = { + .core = &ov772x_subdev_core_ops, + .video = &ov772x_subdev_video_ops, + .pad = &ov772x_subdev_pad_ops, +}; + +/* + * i2c_driver function + */ + +static int ov772x_probe(struct i2c_client *client, + const struct i2c_device_id *did) +{ + struct ov772x_priv *priv; + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); + int ret; + + if (!ssdd || !ssdd->drv_priv) { + dev_err(&client->dev, "OV772X: missing platform data!\n"); + return -EINVAL; + } + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | + I2C_FUNC_PROTOCOL_MANGLING)) { + dev_err(&adapter->dev, + "I2C-Adapter doesn't support SMBUS_BYTE_DATA or PROTOCOL_MANGLING\n"); + return -EIO; + } + client->flags |= I2C_CLIENT_SCCB; + + priv = devm_kzalloc(&client->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->info = ssdd->drv_priv; + + v4l2_i2c_subdev_init(&priv->subdev, client, &ov772x_subdev_ops); + v4l2_ctrl_handler_init(&priv->hdl, 3); + v4l2_ctrl_new_std(&priv->hdl, &ov772x_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 0); + v4l2_ctrl_new_std(&priv->hdl, &ov772x_ctrl_ops, + V4L2_CID_HFLIP, 0, 1, 1, 0); + v4l2_ctrl_new_std(&priv->hdl, &ov772x_ctrl_ops, + V4L2_CID_BAND_STOP_FILTER, 0, 256, 1, 0); + priv->subdev.ctrl_handler = &priv->hdl; + if (priv->hdl.error) + return priv->hdl.error; + + priv->clk = v4l2_clk_get(&client->dev, "mclk"); + if (IS_ERR(priv->clk)) { + ret = PTR_ERR(priv->clk); + goto eclkget; + } + + ret = ov772x_video_probe(priv); + if (ret < 0) { + v4l2_clk_put(priv->clk); +eclkget: + v4l2_ctrl_handler_free(&priv->hdl); + } else { + priv->cfmt = &ov772x_cfmts[0]; + priv->win = &ov772x_win_sizes[0]; + } + + return ret; +} + +static int ov772x_remove(struct i2c_client *client) +{ + struct ov772x_priv *priv = to_ov772x(i2c_get_clientdata(client)); + + v4l2_clk_put(priv->clk); + v4l2_device_unregister_subdev(&priv->subdev); + v4l2_ctrl_handler_free(&priv->hdl); + return 0; +} + +static const struct i2c_device_id ov772x_id[] = { + { "ov772x", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, ov772x_id); + +static struct i2c_driver ov772x_i2c_driver = { + .driver = { + .name = "ov772x", + }, + .probe = ov772x_probe, + .remove = ov772x_remove, + .id_table = ov772x_id, +}; + +module_i2c_driver(ov772x_i2c_driver); + +MODULE_DESCRIPTION("SoC Camera driver for ov772x"); +MODULE_AUTHOR("Kuninori Morimoto"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/media/i2c/soc_camera/ov9640.c b/drivers/media/i2c/soc_camera/ov9640.c new file mode 100644 index 000000000..c63948989 --- /dev/null +++ b/drivers/media/i2c/soc_camera/ov9640.c @@ -0,0 +1,739 @@ +/* + * OmniVision OV96xx Camera Driver + * + * Copyright (C) 2009 Marek Vasut <marek.vasut@gmail.com> + * + * Based on ov772x camera driver: + * + * Copyright (C) 2008 Renesas Solutions Corp. + * Kuninori Morimoto <morimoto.kuninori@renesas.com> + * + * Based on ov7670 and soc_camera_platform driver, + * + * Copyright 2006-7 Jonathan Corbet <corbet@lwn.net> + * Copyright (C) 2008 Magnus Damm + * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/slab.h> +#include <linux/delay.h> +#include <linux/v4l2-mediabus.h> +#include <linux/videodev2.h> + +#include <media/soc_camera.h> +#include <media/v4l2-clk.h> +#include <media/v4l2-common.h> +#include <media/v4l2-ctrls.h> + +#include "ov9640.h" + +#define to_ov9640_sensor(sd) container_of(sd, struct ov9640_priv, subdev) + +/* default register setup */ +static const struct ov9640_reg ov9640_regs_dflt[] = { + { OV9640_COM5, OV9640_COM5_SYSCLK | OV9640_COM5_LONGEXP }, + { OV9640_COM6, OV9640_COM6_OPT_BLC | OV9640_COM6_ADBLC_BIAS | + OV9640_COM6_FMT_RST | OV9640_COM6_ADBLC_OPTEN }, + { OV9640_PSHFT, OV9640_PSHFT_VAL(0x01) }, + { OV9640_ACOM, OV9640_ACOM_2X_ANALOG | OV9640_ACOM_RSVD }, + { OV9640_TSLB, OV9640_TSLB_YUYV_UYVY }, + { OV9640_COM16, OV9640_COM16_RB_AVG }, + + /* Gamma curve P */ + { 0x6c, 0x40 }, { 0x6d, 0x30 }, { 0x6e, 0x4b }, { 0x6f, 0x60 }, + { 0x70, 0x70 }, { 0x71, 0x70 }, { 0x72, 0x70 }, { 0x73, 0x70 }, + { 0x74, 0x60 }, { 0x75, 0x60 }, { 0x76, 0x50 }, { 0x77, 0x48 }, + { 0x78, 0x3a }, { 0x79, 0x2e }, { 0x7a, 0x28 }, { 0x7b, 0x22 }, + + /* Gamma curve T */ + { 0x7c, 0x04 }, { 0x7d, 0x07 }, { 0x7e, 0x10 }, { 0x7f, 0x28 }, + { 0x80, 0x36 }, { 0x81, 0x44 }, { 0x82, 0x52 }, { 0x83, 0x60 }, + { 0x84, 0x6c }, { 0x85, 0x78 }, { 0x86, 0x8c }, { 0x87, 0x9e }, + { 0x88, 0xbb }, { 0x89, 0xd2 }, { 0x8a, 0xe6 }, +}; + +/* Configurations + * NOTE: for YUV, alter the following registers: + * COM12 |= OV9640_COM12_YUV_AVG + * + * for RGB, alter the following registers: + * COM7 |= OV9640_COM7_RGB + * COM13 |= OV9640_COM13_RGB_AVG + * COM15 |= proper RGB color encoding mode + */ +static const struct ov9640_reg ov9640_regs_qqcif[] = { + { OV9640_CLKRC, OV9640_CLKRC_DPLL_EN | OV9640_CLKRC_DIV(0x0f) }, + { OV9640_COM1, OV9640_COM1_QQFMT | OV9640_COM1_HREF_2SKIP }, + { OV9640_COM4, OV9640_COM4_QQ_VP | OV9640_COM4_RSVD }, + { OV9640_COM7, OV9640_COM7_QCIF }, + { OV9640_COM12, OV9640_COM12_RSVD }, + { OV9640_COM13, OV9640_COM13_GAMMA_RAW | OV9640_COM13_MATRIX_EN }, + { OV9640_COM15, OV9640_COM15_OR_10F0 }, +}; + +static const struct ov9640_reg ov9640_regs_qqvga[] = { + { OV9640_CLKRC, OV9640_CLKRC_DPLL_EN | OV9640_CLKRC_DIV(0x07) }, + { OV9640_COM1, OV9640_COM1_QQFMT | OV9640_COM1_HREF_2SKIP }, + { OV9640_COM4, OV9640_COM4_QQ_VP | OV9640_COM4_RSVD }, + { OV9640_COM7, OV9640_COM7_QVGA }, + { OV9640_COM12, OV9640_COM12_RSVD }, + { OV9640_COM13, OV9640_COM13_GAMMA_RAW | OV9640_COM13_MATRIX_EN }, + { OV9640_COM15, OV9640_COM15_OR_10F0 }, +}; + +static const struct ov9640_reg ov9640_regs_qcif[] = { + { OV9640_CLKRC, OV9640_CLKRC_DPLL_EN | OV9640_CLKRC_DIV(0x07) }, + { OV9640_COM4, OV9640_COM4_QQ_VP | OV9640_COM4_RSVD }, + { OV9640_COM7, OV9640_COM7_QCIF }, + { OV9640_COM12, OV9640_COM12_RSVD }, + { OV9640_COM13, OV9640_COM13_GAMMA_RAW | OV9640_COM13_MATRIX_EN }, + { OV9640_COM15, OV9640_COM15_OR_10F0 }, +}; + +static const struct ov9640_reg ov9640_regs_qvga[] = { + { OV9640_CLKRC, OV9640_CLKRC_DPLL_EN | OV9640_CLKRC_DIV(0x03) }, + { OV9640_COM4, OV9640_COM4_QQ_VP | OV9640_COM4_RSVD }, + { OV9640_COM7, OV9640_COM7_QVGA }, + { OV9640_COM12, OV9640_COM12_RSVD }, + { OV9640_COM13, OV9640_COM13_GAMMA_RAW | OV9640_COM13_MATRIX_EN }, + { OV9640_COM15, OV9640_COM15_OR_10F0 }, +}; + +static const struct ov9640_reg ov9640_regs_cif[] = { + { OV9640_CLKRC, OV9640_CLKRC_DPLL_EN | OV9640_CLKRC_DIV(0x03) }, + { OV9640_COM3, OV9640_COM3_VP }, + { OV9640_COM7, OV9640_COM7_CIF }, + { OV9640_COM12, OV9640_COM12_RSVD }, + { OV9640_COM13, OV9640_COM13_GAMMA_RAW | OV9640_COM13_MATRIX_EN }, + { OV9640_COM15, OV9640_COM15_OR_10F0 }, +}; + +static const struct ov9640_reg ov9640_regs_vga[] = { + { OV9640_CLKRC, OV9640_CLKRC_DPLL_EN | OV9640_CLKRC_DIV(0x01) }, + { OV9640_COM3, OV9640_COM3_VP }, + { OV9640_COM7, OV9640_COM7_VGA }, + { OV9640_COM12, OV9640_COM12_RSVD }, + { OV9640_COM13, OV9640_COM13_GAMMA_RAW | OV9640_COM13_MATRIX_EN }, + { OV9640_COM15, OV9640_COM15_OR_10F0 }, +}; + +static const struct ov9640_reg ov9640_regs_sxga[] = { + { OV9640_CLKRC, OV9640_CLKRC_DPLL_EN | OV9640_CLKRC_DIV(0x01) }, + { OV9640_COM3, OV9640_COM3_VP }, + { OV9640_COM7, 0 }, + { OV9640_COM12, OV9640_COM12_RSVD }, + { OV9640_COM13, OV9640_COM13_GAMMA_RAW | OV9640_COM13_MATRIX_EN }, + { OV9640_COM15, OV9640_COM15_OR_10F0 }, +}; + +static const struct ov9640_reg ov9640_regs_yuv[] = { + { OV9640_MTX1, 0x58 }, + { OV9640_MTX2, 0x48 }, + { OV9640_MTX3, 0x10 }, + { OV9640_MTX4, 0x28 }, + { OV9640_MTX5, 0x48 }, + { OV9640_MTX6, 0x70 }, + { OV9640_MTX7, 0x40 }, + { OV9640_MTX8, 0x40 }, + { OV9640_MTX9, 0x40 }, + { OV9640_MTXS, 0x0f }, +}; + +static const struct ov9640_reg ov9640_regs_rgb[] = { + { OV9640_MTX1, 0x71 }, + { OV9640_MTX2, 0x3e }, + { OV9640_MTX3, 0x0c }, + { OV9640_MTX4, 0x33 }, + { OV9640_MTX5, 0x72 }, + { OV9640_MTX6, 0x00 }, + { OV9640_MTX7, 0x2b }, + { OV9640_MTX8, 0x66 }, + { OV9640_MTX9, 0xd2 }, + { OV9640_MTXS, 0x65 }, +}; + +static u32 ov9640_codes[] = { + MEDIA_BUS_FMT_UYVY8_2X8, + MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE, + MEDIA_BUS_FMT_RGB565_2X8_LE, +}; + +/* read a register */ +static int ov9640_reg_read(struct i2c_client *client, u8 reg, u8 *val) +{ + int ret; + u8 data = reg; + struct i2c_msg msg = { + .addr = client->addr, + .flags = 0, + .len = 1, + .buf = &data, + }; + + ret = i2c_transfer(client->adapter, &msg, 1); + if (ret < 0) + goto err; + + msg.flags = I2C_M_RD; + ret = i2c_transfer(client->adapter, &msg, 1); + if (ret < 0) + goto err; + + *val = data; + return 0; + +err: + dev_err(&client->dev, "Failed reading register 0x%02x!\n", reg); + return ret; +} + +/* write a register */ +static int ov9640_reg_write(struct i2c_client *client, u8 reg, u8 val) +{ + int ret; + u8 _val; + unsigned char data[2] = { reg, val }; + struct i2c_msg msg = { + .addr = client->addr, + .flags = 0, + .len = 2, + .buf = data, + }; + + ret = i2c_transfer(client->adapter, &msg, 1); + if (ret < 0) { + dev_err(&client->dev, "Failed writing register 0x%02x!\n", reg); + return ret; + } + + /* we have to read the register back ... no idea why, maybe HW bug */ + ret = ov9640_reg_read(client, reg, &_val); + if (ret) + dev_err(&client->dev, + "Failed reading back register 0x%02x!\n", reg); + + return 0; +} + + +/* Read a register, alter its bits, write it back */ +static int ov9640_reg_rmw(struct i2c_client *client, u8 reg, u8 set, u8 unset) +{ + u8 val; + int ret; + + ret = ov9640_reg_read(client, reg, &val); + if (ret) { + dev_err(&client->dev, + "[Read]-Modify-Write of register %02x failed!\n", reg); + return ret; + } + + val |= set; + val &= ~unset; + + ret = ov9640_reg_write(client, reg, val); + if (ret) + dev_err(&client->dev, + "Read-Modify-[Write] of register %02x failed!\n", reg); + + return ret; +} + +/* Soft reset the camera. This has nothing to do with the RESET pin! */ +static int ov9640_reset(struct i2c_client *client) +{ + int ret; + + ret = ov9640_reg_write(client, OV9640_COM7, OV9640_COM7_SCCB_RESET); + if (ret) + dev_err(&client->dev, + "An error occurred while entering soft reset!\n"); + + return ret; +} + +/* Start/Stop streaming from the device */ +static int ov9640_s_stream(struct v4l2_subdev *sd, int enable) +{ + return 0; +} + +/* Set status of additional camera capabilities */ +static int ov9640_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct ov9640_priv *priv = container_of(ctrl->handler, struct ov9640_priv, hdl); + struct i2c_client *client = v4l2_get_subdevdata(&priv->subdev); + + switch (ctrl->id) { + case V4L2_CID_VFLIP: + if (ctrl->val) + return ov9640_reg_rmw(client, OV9640_MVFP, + OV9640_MVFP_V, 0); + return ov9640_reg_rmw(client, OV9640_MVFP, 0, OV9640_MVFP_V); + case V4L2_CID_HFLIP: + if (ctrl->val) + return ov9640_reg_rmw(client, OV9640_MVFP, + OV9640_MVFP_H, 0); + return ov9640_reg_rmw(client, OV9640_MVFP, 0, OV9640_MVFP_H); + } + return -EINVAL; +} + +#ifdef CONFIG_VIDEO_ADV_DEBUG +static int ov9640_get_register(struct v4l2_subdev *sd, + struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + int ret; + u8 val; + + if (reg->reg & ~0xff) + return -EINVAL; + + reg->size = 1; + + ret = ov9640_reg_read(client, reg->reg, &val); + if (ret) + return ret; + + reg->val = (__u64)val; + + return 0; +} + +static int ov9640_set_register(struct v4l2_subdev *sd, + const struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (reg->reg & ~0xff || reg->val & ~0xff) + return -EINVAL; + + return ov9640_reg_write(client, reg->reg, reg->val); +} +#endif + +static int ov9640_s_power(struct v4l2_subdev *sd, int on) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + struct ov9640_priv *priv = to_ov9640_sensor(sd); + + return soc_camera_set_power(&client->dev, ssdd, priv->clk, on); +} + +/* select nearest higher resolution for capture */ +static void ov9640_res_roundup(u32 *width, u32 *height) +{ + int i; + enum { QQCIF, QQVGA, QCIF, QVGA, CIF, VGA, SXGA }; + static const int res_x[] = { 88, 160, 176, 320, 352, 640, 1280 }; + static const int res_y[] = { 72, 120, 144, 240, 288, 480, 960 }; + + for (i = 0; i < ARRAY_SIZE(res_x); i++) { + if (res_x[i] >= *width && res_y[i] >= *height) { + *width = res_x[i]; + *height = res_y[i]; + return; + } + } + + *width = res_x[SXGA]; + *height = res_y[SXGA]; +} + +/* Prepare necessary register changes depending on color encoding */ +static void ov9640_alter_regs(u32 code, + struct ov9640_reg_alt *alt) +{ + switch (code) { + default: + case MEDIA_BUS_FMT_UYVY8_2X8: + alt->com12 = OV9640_COM12_YUV_AVG; + alt->com13 = OV9640_COM13_Y_DELAY_EN | + OV9640_COM13_YUV_DLY(0x01); + break; + case MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE: + alt->com7 = OV9640_COM7_RGB; + alt->com13 = OV9640_COM13_RGB_AVG; + alt->com15 = OV9640_COM15_RGB_555; + break; + case MEDIA_BUS_FMT_RGB565_2X8_LE: + alt->com7 = OV9640_COM7_RGB; + alt->com13 = OV9640_COM13_RGB_AVG; + alt->com15 = OV9640_COM15_RGB_565; + break; + } +} + +/* Setup registers according to resolution and color encoding */ +static int ov9640_write_regs(struct i2c_client *client, u32 width, + u32 code, struct ov9640_reg_alt *alts) +{ + const struct ov9640_reg *ov9640_regs, *matrix_regs; + int ov9640_regs_len, matrix_regs_len; + int i, ret; + u8 val; + + /* select register configuration for given resolution */ + switch (width) { + case W_QQCIF: + ov9640_regs = ov9640_regs_qqcif; + ov9640_regs_len = ARRAY_SIZE(ov9640_regs_qqcif); + break; + case W_QQVGA: + ov9640_regs = ov9640_regs_qqvga; + ov9640_regs_len = ARRAY_SIZE(ov9640_regs_qqvga); + break; + case W_QCIF: + ov9640_regs = ov9640_regs_qcif; + ov9640_regs_len = ARRAY_SIZE(ov9640_regs_qcif); + break; + case W_QVGA: + ov9640_regs = ov9640_regs_qvga; + ov9640_regs_len = ARRAY_SIZE(ov9640_regs_qvga); + break; + case W_CIF: + ov9640_regs = ov9640_regs_cif; + ov9640_regs_len = ARRAY_SIZE(ov9640_regs_cif); + break; + case W_VGA: + ov9640_regs = ov9640_regs_vga; + ov9640_regs_len = ARRAY_SIZE(ov9640_regs_vga); + break; + case W_SXGA: + ov9640_regs = ov9640_regs_sxga; + ov9640_regs_len = ARRAY_SIZE(ov9640_regs_sxga); + break; + default: + dev_err(&client->dev, "Failed to select resolution!\n"); + return -EINVAL; + } + + /* select color matrix configuration for given color encoding */ + if (code == MEDIA_BUS_FMT_UYVY8_2X8) { + matrix_regs = ov9640_regs_yuv; + matrix_regs_len = ARRAY_SIZE(ov9640_regs_yuv); + } else { + matrix_regs = ov9640_regs_rgb; + matrix_regs_len = ARRAY_SIZE(ov9640_regs_rgb); + } + + /* write register settings into the module */ + for (i = 0; i < ov9640_regs_len; i++) { + val = ov9640_regs[i].val; + + switch (ov9640_regs[i].reg) { + case OV9640_COM7: + val |= alts->com7; + break; + case OV9640_COM12: + val |= alts->com12; + break; + case OV9640_COM13: + val |= alts->com13; + break; + case OV9640_COM15: + val |= alts->com15; + break; + } + + ret = ov9640_reg_write(client, ov9640_regs[i].reg, val); + if (ret) + return ret; + } + + /* write color matrix configuration into the module */ + for (i = 0; i < matrix_regs_len; i++) { + ret = ov9640_reg_write(client, matrix_regs[i].reg, + matrix_regs[i].val); + if (ret) + return ret; + } + + return 0; +} + +/* program default register values */ +static int ov9640_prog_dflt(struct i2c_client *client) +{ + int i, ret; + + for (i = 0; i < ARRAY_SIZE(ov9640_regs_dflt); i++) { + ret = ov9640_reg_write(client, ov9640_regs_dflt[i].reg, + ov9640_regs_dflt[i].val); + if (ret) + return ret; + } + + /* wait for the changes to actually happen, 140ms are not enough yet */ + mdelay(150); + + return 0; +} + +/* set the format we will capture in */ +static int ov9640_s_fmt(struct v4l2_subdev *sd, + struct v4l2_mbus_framefmt *mf) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct ov9640_reg_alt alts = {0}; + int ret; + + ov9640_alter_regs(mf->code, &alts); + + ov9640_reset(client); + + ret = ov9640_prog_dflt(client); + if (ret) + return ret; + + return ov9640_write_regs(client, mf->width, mf->code, &alts); +} + +static int ov9640_set_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct v4l2_mbus_framefmt *mf = &format->format; + + if (format->pad) + return -EINVAL; + + ov9640_res_roundup(&mf->width, &mf->height); + + mf->field = V4L2_FIELD_NONE; + + switch (mf->code) { + case MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE: + case MEDIA_BUS_FMT_RGB565_2X8_LE: + mf->colorspace = V4L2_COLORSPACE_SRGB; + break; + default: + mf->code = MEDIA_BUS_FMT_UYVY8_2X8; + /* fall through */ + case MEDIA_BUS_FMT_UYVY8_2X8: + mf->colorspace = V4L2_COLORSPACE_JPEG; + break; + } + + if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) + return ov9640_s_fmt(sd, mf); + + cfg->try_fmt = *mf; + return 0; +} + +static int ov9640_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_mbus_code_enum *code) +{ + if (code->pad || code->index >= ARRAY_SIZE(ov9640_codes)) + return -EINVAL; + + code->code = ov9640_codes[code->index]; + return 0; +} + +static int ov9640_get_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel) +{ + if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) + return -EINVAL; + + sel->r.left = 0; + sel->r.top = 0; + switch (sel->target) { + case V4L2_SEL_TGT_CROP_BOUNDS: + case V4L2_SEL_TGT_CROP_DEFAULT: + case V4L2_SEL_TGT_CROP: + sel->r.width = W_SXGA; + sel->r.height = H_SXGA; + return 0; + default: + return -EINVAL; + } +} + +static int ov9640_video_probe(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct ov9640_priv *priv = to_ov9640_sensor(sd); + u8 pid, ver, midh, midl; + const char *devname; + int ret; + + ret = ov9640_s_power(&priv->subdev, 1); + if (ret < 0) + return ret; + + /* + * check and show product ID and manufacturer ID + */ + + ret = ov9640_reg_read(client, OV9640_PID, &pid); + if (!ret) + ret = ov9640_reg_read(client, OV9640_VER, &ver); + if (!ret) + ret = ov9640_reg_read(client, OV9640_MIDH, &midh); + if (!ret) + ret = ov9640_reg_read(client, OV9640_MIDL, &midl); + if (ret) + goto done; + + switch (VERSION(pid, ver)) { + case OV9640_V2: + devname = "ov9640"; + priv->revision = 2; + break; + case OV9640_V3: + devname = "ov9640"; + priv->revision = 3; + break; + default: + dev_err(&client->dev, "Product ID error %x:%x\n", pid, ver); + ret = -ENODEV; + goto done; + } + + dev_info(&client->dev, "%s Product ID %0x:%0x Manufacturer ID %x:%x\n", + devname, pid, ver, midh, midl); + + ret = v4l2_ctrl_handler_setup(&priv->hdl); + +done: + ov9640_s_power(&priv->subdev, 0); + return ret; +} + +static const struct v4l2_ctrl_ops ov9640_ctrl_ops = { + .s_ctrl = ov9640_s_ctrl, +}; + +static const struct v4l2_subdev_core_ops ov9640_core_ops = { +#ifdef CONFIG_VIDEO_ADV_DEBUG + .g_register = ov9640_get_register, + .s_register = ov9640_set_register, +#endif + .s_power = ov9640_s_power, +}; + +/* Request bus settings on camera side */ +static int ov9640_g_mbus_config(struct v4l2_subdev *sd, + struct v4l2_mbus_config *cfg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + + cfg->flags = V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_MASTER | + V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_HIGH | + V4L2_MBUS_DATA_ACTIVE_HIGH; + cfg->type = V4L2_MBUS_PARALLEL; + cfg->flags = soc_camera_apply_board_flags(ssdd, cfg); + + return 0; +} + +static const struct v4l2_subdev_video_ops ov9640_video_ops = { + .s_stream = ov9640_s_stream, + .g_mbus_config = ov9640_g_mbus_config, +}; + +static const struct v4l2_subdev_pad_ops ov9640_pad_ops = { + .enum_mbus_code = ov9640_enum_mbus_code, + .get_selection = ov9640_get_selection, + .set_fmt = ov9640_set_fmt, +}; + +static const struct v4l2_subdev_ops ov9640_subdev_ops = { + .core = &ov9640_core_ops, + .video = &ov9640_video_ops, + .pad = &ov9640_pad_ops, +}; + +/* + * i2c_driver function + */ +static int ov9640_probe(struct i2c_client *client, + const struct i2c_device_id *did) +{ + struct ov9640_priv *priv; + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + int ret; + + if (!ssdd) { + dev_err(&client->dev, "Missing platform_data for driver\n"); + return -EINVAL; + } + + priv = devm_kzalloc(&client->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + v4l2_i2c_subdev_init(&priv->subdev, client, &ov9640_subdev_ops); + + v4l2_ctrl_handler_init(&priv->hdl, 2); + v4l2_ctrl_new_std(&priv->hdl, &ov9640_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 0); + v4l2_ctrl_new_std(&priv->hdl, &ov9640_ctrl_ops, + V4L2_CID_HFLIP, 0, 1, 1, 0); + priv->subdev.ctrl_handler = &priv->hdl; + if (priv->hdl.error) + return priv->hdl.error; + + priv->clk = v4l2_clk_get(&client->dev, "mclk"); + if (IS_ERR(priv->clk)) { + ret = PTR_ERR(priv->clk); + goto eclkget; + } + + ret = ov9640_video_probe(client); + if (ret) { + v4l2_clk_put(priv->clk); +eclkget: + v4l2_ctrl_handler_free(&priv->hdl); + } + + return ret; +} + +static int ov9640_remove(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct ov9640_priv *priv = to_ov9640_sensor(sd); + + v4l2_clk_put(priv->clk); + v4l2_device_unregister_subdev(&priv->subdev); + v4l2_ctrl_handler_free(&priv->hdl); + return 0; +} + +static const struct i2c_device_id ov9640_id[] = { + { "ov9640", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, ov9640_id); + +static struct i2c_driver ov9640_i2c_driver = { + .driver = { + .name = "ov9640", + }, + .probe = ov9640_probe, + .remove = ov9640_remove, + .id_table = ov9640_id, +}; + +module_i2c_driver(ov9640_i2c_driver); + +MODULE_DESCRIPTION("SoC Camera driver for OmniVision OV96xx"); +MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/media/i2c/soc_camera/ov9640.h b/drivers/media/i2c/soc_camera/ov9640.h new file mode 100644 index 000000000..65d13ff17 --- /dev/null +++ b/drivers/media/i2c/soc_camera/ov9640.h @@ -0,0 +1,208 @@ +/* + * OmniVision OV96xx Camera Header File + * + * Copyright (C) 2009 Marek Vasut <marek.vasut@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __DRIVERS_MEDIA_VIDEO_OV9640_H__ +#define __DRIVERS_MEDIA_VIDEO_OV9640_H__ + +/* Register definitions */ +#define OV9640_GAIN 0x00 +#define OV9640_BLUE 0x01 +#define OV9640_RED 0x02 +#define OV9640_VFER 0x03 +#define OV9640_COM1 0x04 +#define OV9640_BAVE 0x05 +#define OV9640_GEAVE 0x06 +#define OV9640_RSID 0x07 +#define OV9640_RAVE 0x08 +#define OV9640_COM2 0x09 +#define OV9640_PID 0x0a +#define OV9640_VER 0x0b +#define OV9640_COM3 0x0c +#define OV9640_COM4 0x0d +#define OV9640_COM5 0x0e +#define OV9640_COM6 0x0f +#define OV9640_AECH 0x10 +#define OV9640_CLKRC 0x11 +#define OV9640_COM7 0x12 +#define OV9640_COM8 0x13 +#define OV9640_COM9 0x14 +#define OV9640_COM10 0x15 +/* 0x16 - RESERVED */ +#define OV9640_HSTART 0x17 +#define OV9640_HSTOP 0x18 +#define OV9640_VSTART 0x19 +#define OV9640_VSTOP 0x1a +#define OV9640_PSHFT 0x1b +#define OV9640_MIDH 0x1c +#define OV9640_MIDL 0x1d +#define OV9640_MVFP 0x1e +#define OV9640_LAEC 0x1f +#define OV9640_BOS 0x20 +#define OV9640_GBOS 0x21 +#define OV9640_GROS 0x22 +#define OV9640_ROS 0x23 +#define OV9640_AEW 0x24 +#define OV9640_AEB 0x25 +#define OV9640_VPT 0x26 +#define OV9640_BBIAS 0x27 +#define OV9640_GBBIAS 0x28 +/* 0x29 - RESERVED */ +#define OV9640_EXHCH 0x2a +#define OV9640_EXHCL 0x2b +#define OV9640_RBIAS 0x2c +#define OV9640_ADVFL 0x2d +#define OV9640_ADVFH 0x2e +#define OV9640_YAVE 0x2f +#define OV9640_HSYST 0x30 +#define OV9640_HSYEN 0x31 +#define OV9640_HREF 0x32 +#define OV9640_CHLF 0x33 +#define OV9640_ARBLM 0x34 +/* 0x35..0x36 - RESERVED */ +#define OV9640_ADC 0x37 +#define OV9640_ACOM 0x38 +#define OV9640_OFON 0x39 +#define OV9640_TSLB 0x3a +#define OV9640_COM11 0x3b +#define OV9640_COM12 0x3c +#define OV9640_COM13 0x3d +#define OV9640_COM14 0x3e +#define OV9640_EDGE 0x3f +#define OV9640_COM15 0x40 +#define OV9640_COM16 0x41 +#define OV9640_COM17 0x42 +/* 0x43..0x4e - RESERVED */ +#define OV9640_MTX1 0x4f +#define OV9640_MTX2 0x50 +#define OV9640_MTX3 0x51 +#define OV9640_MTX4 0x52 +#define OV9640_MTX5 0x53 +#define OV9640_MTX6 0x54 +#define OV9640_MTX7 0x55 +#define OV9640_MTX8 0x56 +#define OV9640_MTX9 0x57 +#define OV9640_MTXS 0x58 +/* 0x59..0x61 - RESERVED */ +#define OV9640_LCC1 0x62 +#define OV9640_LCC2 0x63 +#define OV9640_LCC3 0x64 +#define OV9640_LCC4 0x65 +#define OV9640_LCC5 0x66 +#define OV9640_MANU 0x67 +#define OV9640_MANV 0x68 +#define OV9640_HV 0x69 +#define OV9640_MBD 0x6a +#define OV9640_DBLV 0x6b +#define OV9640_GSP 0x6c /* ... till 0x7b */ +#define OV9640_GST 0x7c /* ... till 0x8a */ + +#define OV9640_CLKRC_DPLL_EN 0x80 +#define OV9640_CLKRC_DIRECT 0x40 +#define OV9640_CLKRC_DIV(x) ((x) & 0x3f) + +#define OV9640_PSHFT_VAL(x) ((x) & 0xff) + +#define OV9640_ACOM_2X_ANALOG 0x80 +#define OV9640_ACOM_RSVD 0x12 + +#define OV9640_MVFP_V 0x10 +#define OV9640_MVFP_H 0x20 + +#define OV9640_COM1_HREF_NOSKIP 0x00 +#define OV9640_COM1_HREF_2SKIP 0x04 +#define OV9640_COM1_HREF_3SKIP 0x08 +#define OV9640_COM1_QQFMT 0x20 + +#define OV9640_COM2_SSM 0x10 + +#define OV9640_COM3_VP 0x04 + +#define OV9640_COM4_QQ_VP 0x80 +#define OV9640_COM4_RSVD 0x40 + +#define OV9640_COM5_SYSCLK 0x80 +#define OV9640_COM5_LONGEXP 0x01 + +#define OV9640_COM6_OPT_BLC 0x40 +#define OV9640_COM6_ADBLC_BIAS 0x08 +#define OV9640_COM6_FMT_RST 0x82 +#define OV9640_COM6_ADBLC_OPTEN 0x01 + +#define OV9640_COM7_RAW_RGB 0x01 +#define OV9640_COM7_RGB 0x04 +#define OV9640_COM7_QCIF 0x08 +#define OV9640_COM7_QVGA 0x10 +#define OV9640_COM7_CIF 0x20 +#define OV9640_COM7_VGA 0x40 +#define OV9640_COM7_SCCB_RESET 0x80 + +#define OV9640_TSLB_YVYU_YUYV 0x04 +#define OV9640_TSLB_YUYV_UYVY 0x08 + +#define OV9640_COM12_YUV_AVG 0x04 +#define OV9640_COM12_RSVD 0x40 + +#define OV9640_COM13_GAMMA_NONE 0x00 +#define OV9640_COM13_GAMMA_Y 0x40 +#define OV9640_COM13_GAMMA_RAW 0x80 +#define OV9640_COM13_RGB_AVG 0x20 +#define OV9640_COM13_MATRIX_EN 0x10 +#define OV9640_COM13_Y_DELAY_EN 0x08 +#define OV9640_COM13_YUV_DLY(x) ((x) & 0x07) + +#define OV9640_COM15_OR_00FF 0x00 +#define OV9640_COM15_OR_01FE 0x40 +#define OV9640_COM15_OR_10F0 0xc0 +#define OV9640_COM15_RGB_NORM 0x00 +#define OV9640_COM15_RGB_565 0x10 +#define OV9640_COM15_RGB_555 0x30 + +#define OV9640_COM16_RB_AVG 0x01 + +/* IDs */ +#define OV9640_V2 0x9648 +#define OV9640_V3 0x9649 +#define VERSION(pid, ver) (((pid) << 8) | ((ver) & 0xFF)) + +/* supported resolutions */ +enum { + W_QQCIF = 88, + W_QQVGA = 160, + W_QCIF = 176, + W_QVGA = 320, + W_CIF = 352, + W_VGA = 640, + W_SXGA = 1280 +}; +#define H_SXGA 960 + +/* Misc. structures */ +struct ov9640_reg_alt { + u8 com7; + u8 com12; + u8 com13; + u8 com15; +}; + +struct ov9640_reg { + u8 reg; + u8 val; +}; + +struct ov9640_priv { + struct v4l2_subdev subdev; + struct v4l2_ctrl_handler hdl; + struct v4l2_clk *clk; + + int model; + int revision; +}; + +#endif /* __DRIVERS_MEDIA_VIDEO_OV9640_H__ */ diff --git a/drivers/media/i2c/soc_camera/ov9740.c b/drivers/media/i2c/soc_camera/ov9740.c new file mode 100644 index 000000000..755de2289 --- /dev/null +++ b/drivers/media/i2c/soc_camera/ov9740.c @@ -0,0 +1,997 @@ +/* + * OmniVision OV9740 Camera Driver + * + * Copyright (C) 2011 NVIDIA Corporation + * + * Based on ov9640 camera driver. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/slab.h> +#include <linux/v4l2-mediabus.h> + +#include <media/soc_camera.h> +#include <media/v4l2-clk.h> +#include <media/v4l2-ctrls.h> + +#define to_ov9740(sd) container_of(sd, struct ov9740_priv, subdev) + +/* General Status Registers */ +#define OV9740_MODEL_ID_HI 0x0000 +#define OV9740_MODEL_ID_LO 0x0001 +#define OV9740_REVISION_NUMBER 0x0002 +#define OV9740_MANUFACTURER_ID 0x0003 +#define OV9740_SMIA_VERSION 0x0004 + +/* General Setup Registers */ +#define OV9740_MODE_SELECT 0x0100 +#define OV9740_IMAGE_ORT 0x0101 +#define OV9740_SOFTWARE_RESET 0x0103 +#define OV9740_GRP_PARAM_HOLD 0x0104 +#define OV9740_MSK_CORRUP_FM 0x0105 + +/* Timing Setting */ +#define OV9740_FRM_LENGTH_LN_HI 0x0340 /* VTS */ +#define OV9740_FRM_LENGTH_LN_LO 0x0341 /* VTS */ +#define OV9740_LN_LENGTH_PCK_HI 0x0342 /* HTS */ +#define OV9740_LN_LENGTH_PCK_LO 0x0343 /* HTS */ +#define OV9740_X_ADDR_START_HI 0x0344 +#define OV9740_X_ADDR_START_LO 0x0345 +#define OV9740_Y_ADDR_START_HI 0x0346 +#define OV9740_Y_ADDR_START_LO 0x0347 +#define OV9740_X_ADDR_END_HI 0x0348 +#define OV9740_X_ADDR_END_LO 0x0349 +#define OV9740_Y_ADDR_END_HI 0x034a +#define OV9740_Y_ADDR_END_LO 0x034b +#define OV9740_X_OUTPUT_SIZE_HI 0x034c +#define OV9740_X_OUTPUT_SIZE_LO 0x034d +#define OV9740_Y_OUTPUT_SIZE_HI 0x034e +#define OV9740_Y_OUTPUT_SIZE_LO 0x034f + +/* IO Control Registers */ +#define OV9740_IO_CREL00 0x3002 +#define OV9740_IO_CREL01 0x3004 +#define OV9740_IO_CREL02 0x3005 +#define OV9740_IO_OUTPUT_SEL01 0x3026 +#define OV9740_IO_OUTPUT_SEL02 0x3027 + +/* AWB Registers */ +#define OV9740_AWB_MANUAL_CTRL 0x3406 + +/* Analog Control Registers */ +#define OV9740_ANALOG_CTRL01 0x3601 +#define OV9740_ANALOG_CTRL02 0x3602 +#define OV9740_ANALOG_CTRL03 0x3603 +#define OV9740_ANALOG_CTRL04 0x3604 +#define OV9740_ANALOG_CTRL10 0x3610 +#define OV9740_ANALOG_CTRL12 0x3612 +#define OV9740_ANALOG_CTRL15 0x3615 +#define OV9740_ANALOG_CTRL20 0x3620 +#define OV9740_ANALOG_CTRL21 0x3621 +#define OV9740_ANALOG_CTRL22 0x3622 +#define OV9740_ANALOG_CTRL30 0x3630 +#define OV9740_ANALOG_CTRL31 0x3631 +#define OV9740_ANALOG_CTRL32 0x3632 +#define OV9740_ANALOG_CTRL33 0x3633 + +/* Sensor Control */ +#define OV9740_SENSOR_CTRL03 0x3703 +#define OV9740_SENSOR_CTRL04 0x3704 +#define OV9740_SENSOR_CTRL05 0x3705 +#define OV9740_SENSOR_CTRL07 0x3707 + +/* Timing Control */ +#define OV9740_TIMING_CTRL17 0x3817 +#define OV9740_TIMING_CTRL19 0x3819 +#define OV9740_TIMING_CTRL33 0x3833 +#define OV9740_TIMING_CTRL35 0x3835 + +/* Banding Filter */ +#define OV9740_AEC_MAXEXPO_60_H 0x3a02 +#define OV9740_AEC_MAXEXPO_60_L 0x3a03 +#define OV9740_AEC_B50_STEP_HI 0x3a08 +#define OV9740_AEC_B50_STEP_LO 0x3a09 +#define OV9740_AEC_B60_STEP_HI 0x3a0a +#define OV9740_AEC_B60_STEP_LO 0x3a0b +#define OV9740_AEC_CTRL0D 0x3a0d +#define OV9740_AEC_CTRL0E 0x3a0e +#define OV9740_AEC_MAXEXPO_50_H 0x3a14 +#define OV9740_AEC_MAXEXPO_50_L 0x3a15 + +/* AEC/AGC Control */ +#define OV9740_AEC_ENABLE 0x3503 +#define OV9740_GAIN_CEILING_01 0x3a18 +#define OV9740_GAIN_CEILING_02 0x3a19 +#define OV9740_AEC_HI_THRESHOLD 0x3a11 +#define OV9740_AEC_3A1A 0x3a1a +#define OV9740_AEC_CTRL1B_WPT2 0x3a1b +#define OV9740_AEC_CTRL0F_WPT 0x3a0f +#define OV9740_AEC_CTRL10_BPT 0x3a10 +#define OV9740_AEC_CTRL1E_BPT2 0x3a1e +#define OV9740_AEC_LO_THRESHOLD 0x3a1f + +/* BLC Control */ +#define OV9740_BLC_AUTO_ENABLE 0x4002 +#define OV9740_BLC_MODE 0x4005 + +/* VFIFO */ +#define OV9740_VFIFO_READ_START_HI 0x4608 +#define OV9740_VFIFO_READ_START_LO 0x4609 + +/* DVP Control */ +#define OV9740_DVP_VSYNC_CTRL02 0x4702 +#define OV9740_DVP_VSYNC_MODE 0x4704 +#define OV9740_DVP_VSYNC_CTRL06 0x4706 + +/* PLL Setting */ +#define OV9740_PLL_MODE_CTRL01 0x3104 +#define OV9740_PRE_PLL_CLK_DIV 0x0305 +#define OV9740_PLL_MULTIPLIER 0x0307 +#define OV9740_VT_SYS_CLK_DIV 0x0303 +#define OV9740_VT_PIX_CLK_DIV 0x0301 +#define OV9740_PLL_CTRL3010 0x3010 +#define OV9740_VFIFO_CTRL00 0x460e + +/* ISP Control */ +#define OV9740_ISP_CTRL00 0x5000 +#define OV9740_ISP_CTRL01 0x5001 +#define OV9740_ISP_CTRL03 0x5003 +#define OV9740_ISP_CTRL05 0x5005 +#define OV9740_ISP_CTRL12 0x5012 +#define OV9740_ISP_CTRL19 0x5019 +#define OV9740_ISP_CTRL1A 0x501a +#define OV9740_ISP_CTRL1E 0x501e +#define OV9740_ISP_CTRL1F 0x501f +#define OV9740_ISP_CTRL20 0x5020 +#define OV9740_ISP_CTRL21 0x5021 + +/* AWB */ +#define OV9740_AWB_CTRL00 0x5180 +#define OV9740_AWB_CTRL01 0x5181 +#define OV9740_AWB_CTRL02 0x5182 +#define OV9740_AWB_CTRL03 0x5183 +#define OV9740_AWB_ADV_CTRL01 0x5184 +#define OV9740_AWB_ADV_CTRL02 0x5185 +#define OV9740_AWB_ADV_CTRL03 0x5186 +#define OV9740_AWB_ADV_CTRL04 0x5187 +#define OV9740_AWB_ADV_CTRL05 0x5188 +#define OV9740_AWB_ADV_CTRL06 0x5189 +#define OV9740_AWB_ADV_CTRL07 0x518a +#define OV9740_AWB_ADV_CTRL08 0x518b +#define OV9740_AWB_ADV_CTRL09 0x518c +#define OV9740_AWB_ADV_CTRL10 0x518d +#define OV9740_AWB_ADV_CTRL11 0x518e +#define OV9740_AWB_CTRL0F 0x518f +#define OV9740_AWB_CTRL10 0x5190 +#define OV9740_AWB_CTRL11 0x5191 +#define OV9740_AWB_CTRL12 0x5192 +#define OV9740_AWB_CTRL13 0x5193 +#define OV9740_AWB_CTRL14 0x5194 + +/* MIPI Control */ +#define OV9740_MIPI_CTRL00 0x4800 +#define OV9740_MIPI_3837 0x3837 +#define OV9740_MIPI_CTRL01 0x4801 +#define OV9740_MIPI_CTRL03 0x4803 +#define OV9740_MIPI_CTRL05 0x4805 +#define OV9740_VFIFO_RD_CTRL 0x4601 +#define OV9740_MIPI_CTRL_3012 0x3012 +#define OV9740_SC_CMMM_MIPI_CTR 0x3014 + +#define OV9740_MAX_WIDTH 1280 +#define OV9740_MAX_HEIGHT 720 + +/* Misc. structures */ +struct ov9740_reg { + u16 reg; + u8 val; +}; + +struct ov9740_priv { + struct v4l2_subdev subdev; + struct v4l2_ctrl_handler hdl; + struct v4l2_clk *clk; + + u16 model; + u8 revision; + u8 manid; + u8 smiaver; + + bool flag_vflip; + bool flag_hflip; + + /* For suspend/resume. */ + struct v4l2_mbus_framefmt current_mf; + bool current_enable; +}; + +static const struct ov9740_reg ov9740_defaults[] = { + /* Software Reset */ + { OV9740_SOFTWARE_RESET, 0x01 }, + + /* Banding Filter */ + { OV9740_AEC_B50_STEP_HI, 0x00 }, + { OV9740_AEC_B50_STEP_LO, 0xe8 }, + { OV9740_AEC_CTRL0E, 0x03 }, + { OV9740_AEC_MAXEXPO_50_H, 0x15 }, + { OV9740_AEC_MAXEXPO_50_L, 0xc6 }, + { OV9740_AEC_B60_STEP_HI, 0x00 }, + { OV9740_AEC_B60_STEP_LO, 0xc0 }, + { OV9740_AEC_CTRL0D, 0x04 }, + { OV9740_AEC_MAXEXPO_60_H, 0x18 }, + { OV9740_AEC_MAXEXPO_60_L, 0x20 }, + + /* LC */ + { 0x5842, 0x02 }, { 0x5843, 0x5e }, { 0x5844, 0x04 }, { 0x5845, 0x32 }, + { 0x5846, 0x03 }, { 0x5847, 0x29 }, { 0x5848, 0x02 }, { 0x5849, 0xcc }, + + /* Un-documented OV9740 registers */ + { 0x5800, 0x29 }, { 0x5801, 0x25 }, { 0x5802, 0x20 }, { 0x5803, 0x21 }, + { 0x5804, 0x26 }, { 0x5805, 0x2e }, { 0x5806, 0x11 }, { 0x5807, 0x0c }, + { 0x5808, 0x09 }, { 0x5809, 0x0a }, { 0x580a, 0x0e }, { 0x580b, 0x16 }, + { 0x580c, 0x06 }, { 0x580d, 0x02 }, { 0x580e, 0x00 }, { 0x580f, 0x00 }, + { 0x5810, 0x04 }, { 0x5811, 0x0a }, { 0x5812, 0x05 }, { 0x5813, 0x02 }, + { 0x5814, 0x00 }, { 0x5815, 0x00 }, { 0x5816, 0x03 }, { 0x5817, 0x09 }, + { 0x5818, 0x0f }, { 0x5819, 0x0a }, { 0x581a, 0x07 }, { 0x581b, 0x08 }, + { 0x581c, 0x0b }, { 0x581d, 0x14 }, { 0x581e, 0x28 }, { 0x581f, 0x23 }, + { 0x5820, 0x1d }, { 0x5821, 0x1e }, { 0x5822, 0x24 }, { 0x5823, 0x2a }, + { 0x5824, 0x4f }, { 0x5825, 0x6f }, { 0x5826, 0x5f }, { 0x5827, 0x7f }, + { 0x5828, 0x9f }, { 0x5829, 0x5f }, { 0x582a, 0x8f }, { 0x582b, 0x9e }, + { 0x582c, 0x8f }, { 0x582d, 0x9f }, { 0x582e, 0x4f }, { 0x582f, 0x87 }, + { 0x5830, 0x86 }, { 0x5831, 0x97 }, { 0x5832, 0xae }, { 0x5833, 0x3f }, + { 0x5834, 0x8e }, { 0x5835, 0x7c }, { 0x5836, 0x7e }, { 0x5837, 0xaf }, + { 0x5838, 0x8f }, { 0x5839, 0x8f }, { 0x583a, 0x9f }, { 0x583b, 0x7f }, + { 0x583c, 0x5f }, + + /* Y Gamma */ + { 0x5480, 0x07 }, { 0x5481, 0x18 }, { 0x5482, 0x2c }, { 0x5483, 0x4e }, + { 0x5484, 0x5e }, { 0x5485, 0x6b }, { 0x5486, 0x77 }, { 0x5487, 0x82 }, + { 0x5488, 0x8c }, { 0x5489, 0x95 }, { 0x548a, 0xa4 }, { 0x548b, 0xb1 }, + { 0x548c, 0xc6 }, { 0x548d, 0xd8 }, { 0x548e, 0xe9 }, + + /* UV Gamma */ + { 0x5490, 0x0f }, { 0x5491, 0xff }, { 0x5492, 0x0d }, { 0x5493, 0x05 }, + { 0x5494, 0x07 }, { 0x5495, 0x1a }, { 0x5496, 0x04 }, { 0x5497, 0x01 }, + { 0x5498, 0x03 }, { 0x5499, 0x53 }, { 0x549a, 0x02 }, { 0x549b, 0xeb }, + { 0x549c, 0x02 }, { 0x549d, 0xa0 }, { 0x549e, 0x02 }, { 0x549f, 0x67 }, + { 0x54a0, 0x02 }, { 0x54a1, 0x3b }, { 0x54a2, 0x02 }, { 0x54a3, 0x18 }, + { 0x54a4, 0x01 }, { 0x54a5, 0xe7 }, { 0x54a6, 0x01 }, { 0x54a7, 0xc3 }, + { 0x54a8, 0x01 }, { 0x54a9, 0x94 }, { 0x54aa, 0x01 }, { 0x54ab, 0x72 }, + { 0x54ac, 0x01 }, { 0x54ad, 0x57 }, + + /* AWB */ + { OV9740_AWB_CTRL00, 0xf0 }, + { OV9740_AWB_CTRL01, 0x00 }, + { OV9740_AWB_CTRL02, 0x41 }, + { OV9740_AWB_CTRL03, 0x42 }, + { OV9740_AWB_ADV_CTRL01, 0x8a }, + { OV9740_AWB_ADV_CTRL02, 0x61 }, + { OV9740_AWB_ADV_CTRL03, 0xce }, + { OV9740_AWB_ADV_CTRL04, 0xa8 }, + { OV9740_AWB_ADV_CTRL05, 0x17 }, + { OV9740_AWB_ADV_CTRL06, 0x1f }, + { OV9740_AWB_ADV_CTRL07, 0x27 }, + { OV9740_AWB_ADV_CTRL08, 0x41 }, + { OV9740_AWB_ADV_CTRL09, 0x34 }, + { OV9740_AWB_ADV_CTRL10, 0xf0 }, + { OV9740_AWB_ADV_CTRL11, 0x10 }, + { OV9740_AWB_CTRL0F, 0xff }, + { OV9740_AWB_CTRL10, 0x00 }, + { OV9740_AWB_CTRL11, 0xff }, + { OV9740_AWB_CTRL12, 0x00 }, + { OV9740_AWB_CTRL13, 0xff }, + { OV9740_AWB_CTRL14, 0x00 }, + + /* CIP */ + { 0x530d, 0x12 }, + + /* CMX */ + { 0x5380, 0x01 }, { 0x5381, 0x00 }, { 0x5382, 0x00 }, { 0x5383, 0x17 }, + { 0x5384, 0x00 }, { 0x5385, 0x01 }, { 0x5386, 0x00 }, { 0x5387, 0x00 }, + { 0x5388, 0x00 }, { 0x5389, 0xe0 }, { 0x538a, 0x00 }, { 0x538b, 0x20 }, + { 0x538c, 0x00 }, { 0x538d, 0x00 }, { 0x538e, 0x00 }, { 0x538f, 0x16 }, + { 0x5390, 0x00 }, { 0x5391, 0x9c }, { 0x5392, 0x00 }, { 0x5393, 0xa0 }, + { 0x5394, 0x18 }, + + /* 50/60 Detection */ + { 0x3c0a, 0x9c }, { 0x3c0b, 0x3f }, + + /* Output Select */ + { OV9740_IO_OUTPUT_SEL01, 0x00 }, + { OV9740_IO_OUTPUT_SEL02, 0x00 }, + { OV9740_IO_CREL00, 0x00 }, + { OV9740_IO_CREL01, 0x00 }, + { OV9740_IO_CREL02, 0x00 }, + + /* AWB Control */ + { OV9740_AWB_MANUAL_CTRL, 0x00 }, + + /* Analog Control */ + { OV9740_ANALOG_CTRL03, 0xaa }, + { OV9740_ANALOG_CTRL32, 0x2f }, + { OV9740_ANALOG_CTRL20, 0x66 }, + { OV9740_ANALOG_CTRL21, 0xc0 }, + { OV9740_ANALOG_CTRL31, 0x52 }, + { OV9740_ANALOG_CTRL33, 0x50 }, + { OV9740_ANALOG_CTRL30, 0xca }, + { OV9740_ANALOG_CTRL04, 0x0c }, + { OV9740_ANALOG_CTRL01, 0x40 }, + { OV9740_ANALOG_CTRL02, 0x16 }, + { OV9740_ANALOG_CTRL10, 0xa1 }, + { OV9740_ANALOG_CTRL12, 0x24 }, + { OV9740_ANALOG_CTRL22, 0x9f }, + { OV9740_ANALOG_CTRL15, 0xf0 }, + + /* Sensor Control */ + { OV9740_SENSOR_CTRL03, 0x42 }, + { OV9740_SENSOR_CTRL04, 0x10 }, + { OV9740_SENSOR_CTRL05, 0x45 }, + { OV9740_SENSOR_CTRL07, 0x14 }, + + /* Timing Control */ + { OV9740_TIMING_CTRL33, 0x04 }, + { OV9740_TIMING_CTRL35, 0x02 }, + { OV9740_TIMING_CTRL19, 0x6e }, + { OV9740_TIMING_CTRL17, 0x94 }, + + /* AEC/AGC Control */ + { OV9740_AEC_ENABLE, 0x10 }, + { OV9740_GAIN_CEILING_01, 0x00 }, + { OV9740_GAIN_CEILING_02, 0x7f }, + { OV9740_AEC_HI_THRESHOLD, 0xa0 }, + { OV9740_AEC_3A1A, 0x05 }, + { OV9740_AEC_CTRL1B_WPT2, 0x50 }, + { OV9740_AEC_CTRL0F_WPT, 0x50 }, + { OV9740_AEC_CTRL10_BPT, 0x4c }, + { OV9740_AEC_CTRL1E_BPT2, 0x4c }, + { OV9740_AEC_LO_THRESHOLD, 0x26 }, + + /* BLC Control */ + { OV9740_BLC_AUTO_ENABLE, 0x45 }, + { OV9740_BLC_MODE, 0x18 }, + + /* DVP Control */ + { OV9740_DVP_VSYNC_CTRL02, 0x04 }, + { OV9740_DVP_VSYNC_MODE, 0x00 }, + { OV9740_DVP_VSYNC_CTRL06, 0x08 }, + + /* PLL Setting */ + { OV9740_PLL_MODE_CTRL01, 0x20 }, + { OV9740_PRE_PLL_CLK_DIV, 0x03 }, + { OV9740_PLL_MULTIPLIER, 0x4c }, + { OV9740_VT_SYS_CLK_DIV, 0x01 }, + { OV9740_VT_PIX_CLK_DIV, 0x08 }, + { OV9740_PLL_CTRL3010, 0x01 }, + { OV9740_VFIFO_CTRL00, 0x82 }, + + /* Timing Setting */ + /* VTS */ + { OV9740_FRM_LENGTH_LN_HI, 0x03 }, + { OV9740_FRM_LENGTH_LN_LO, 0x07 }, + /* HTS */ + { OV9740_LN_LENGTH_PCK_HI, 0x06 }, + { OV9740_LN_LENGTH_PCK_LO, 0x62 }, + + /* MIPI Control */ + { OV9740_MIPI_CTRL00, 0x44 }, /* 0x64 for discontinuous clk */ + { OV9740_MIPI_3837, 0x01 }, + { OV9740_MIPI_CTRL01, 0x0f }, + { OV9740_MIPI_CTRL03, 0x05 }, + { OV9740_MIPI_CTRL05, 0x10 }, + { OV9740_VFIFO_RD_CTRL, 0x16 }, + { OV9740_MIPI_CTRL_3012, 0x70 }, + { OV9740_SC_CMMM_MIPI_CTR, 0x01 }, + + /* YUYV order */ + { OV9740_ISP_CTRL19, 0x02 }, +}; + +static u32 ov9740_codes[] = { + MEDIA_BUS_FMT_YUYV8_2X8, +}; + +/* read a register */ +static int ov9740_reg_read(struct i2c_client *client, u16 reg, u8 *val) +{ + int ret; + struct i2c_msg msg[] = { + { + .addr = client->addr, + .flags = 0, + .len = 2, + .buf = (u8 *)®, + }, + { + .addr = client->addr, + .flags = I2C_M_RD, + .len = 1, + .buf = val, + }, + }; + + reg = swab16(reg); + + ret = i2c_transfer(client->adapter, msg, 2); + if (ret < 0) { + dev_err(&client->dev, "Failed reading register 0x%04x!\n", reg); + return ret; + } + + return 0; +} + +/* write a register */ +static int ov9740_reg_write(struct i2c_client *client, u16 reg, u8 val) +{ + struct i2c_msg msg; + struct { + u16 reg; + u8 val; + } __packed buf; + int ret; + + reg = swab16(reg); + + buf.reg = reg; + buf.val = val; + + msg.addr = client->addr; + msg.flags = 0; + msg.len = 3; + msg.buf = (u8 *)&buf; + + ret = i2c_transfer(client->adapter, &msg, 1); + if (ret < 0) { + dev_err(&client->dev, "Failed writing register 0x%04x!\n", reg); + return ret; + } + + return 0; +} + + +/* Read a register, alter its bits, write it back */ +static int ov9740_reg_rmw(struct i2c_client *client, u16 reg, u8 set, u8 unset) +{ + u8 val; + int ret; + + ret = ov9740_reg_read(client, reg, &val); + if (ret < 0) { + dev_err(&client->dev, + "[Read]-Modify-Write of register 0x%04x failed!\n", + reg); + return ret; + } + + val |= set; + val &= ~unset; + + ret = ov9740_reg_write(client, reg, val); + if (ret < 0) { + dev_err(&client->dev, + "Read-Modify-[Write] of register 0x%04x failed!\n", + reg); + return ret; + } + + return 0; +} + +static int ov9740_reg_write_array(struct i2c_client *client, + const struct ov9740_reg *regarray, + int regarraylen) +{ + int i; + int ret; + + for (i = 0; i < regarraylen; i++) { + ret = ov9740_reg_write(client, + regarray[i].reg, regarray[i].val); + if (ret < 0) + return ret; + } + + return 0; +} + +/* Start/Stop streaming from the device */ +static int ov9740_s_stream(struct v4l2_subdev *sd, int enable) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct ov9740_priv *priv = to_ov9740(sd); + int ret; + + /* Program orientation register. */ + if (priv->flag_vflip) + ret = ov9740_reg_rmw(client, OV9740_IMAGE_ORT, 0x2, 0); + else + ret = ov9740_reg_rmw(client, OV9740_IMAGE_ORT, 0, 0x2); + if (ret < 0) + return ret; + + if (priv->flag_hflip) + ret = ov9740_reg_rmw(client, OV9740_IMAGE_ORT, 0x1, 0); + else + ret = ov9740_reg_rmw(client, OV9740_IMAGE_ORT, 0, 0x1); + if (ret < 0) + return ret; + + if (enable) { + dev_dbg(&client->dev, "Enabling Streaming\n"); + /* Start Streaming */ + ret = ov9740_reg_write(client, OV9740_MODE_SELECT, 0x01); + + } else { + dev_dbg(&client->dev, "Disabling Streaming\n"); + /* Software Reset */ + ret = ov9740_reg_write(client, OV9740_SOFTWARE_RESET, 0x01); + if (!ret) + /* Setting Streaming to Standby */ + ret = ov9740_reg_write(client, OV9740_MODE_SELECT, + 0x00); + } + + priv->current_enable = enable; + + return ret; +} + +/* select nearest higher resolution for capture */ +static void ov9740_res_roundup(u32 *width, u32 *height) +{ + /* Width must be a multiple of 4 pixels. */ + *width = ALIGN(*width, 4); + + /* Max resolution is 1280x720 (720p). */ + if (*width > OV9740_MAX_WIDTH) + *width = OV9740_MAX_WIDTH; + + if (*height > OV9740_MAX_HEIGHT) + *height = OV9740_MAX_HEIGHT; +} + +/* Setup registers according to resolution and color encoding */ +static int ov9740_set_res(struct i2c_client *client, u32 width, u32 height) +{ + u32 x_start; + u32 y_start; + u32 x_end; + u32 y_end; + bool scaling = false; + u32 scale_input_x; + u32 scale_input_y; + int ret; + + if ((width != OV9740_MAX_WIDTH) || (height != OV9740_MAX_HEIGHT)) + scaling = true; + + /* + * Try to use as much of the sensor area as possible when supporting + * smaller resolutions. Depending on the aspect ratio of the + * chosen resolution, we can either use the full width of the sensor, + * or the full height of the sensor (or both if the aspect ratio is + * the same as 1280x720. + */ + if ((OV9740_MAX_WIDTH * height) > (OV9740_MAX_HEIGHT * width)) { + scale_input_x = (OV9740_MAX_HEIGHT * width) / height; + scale_input_y = OV9740_MAX_HEIGHT; + } else { + scale_input_x = OV9740_MAX_WIDTH; + scale_input_y = (OV9740_MAX_WIDTH * height) / width; + } + + /* These describe the area of the sensor to use. */ + x_start = (OV9740_MAX_WIDTH - scale_input_x) / 2; + y_start = (OV9740_MAX_HEIGHT - scale_input_y) / 2; + x_end = x_start + scale_input_x - 1; + y_end = y_start + scale_input_y - 1; + + ret = ov9740_reg_write(client, OV9740_X_ADDR_START_HI, x_start >> 8); + if (ret) + goto done; + ret = ov9740_reg_write(client, OV9740_X_ADDR_START_LO, x_start & 0xff); + if (ret) + goto done; + ret = ov9740_reg_write(client, OV9740_Y_ADDR_START_HI, y_start >> 8); + if (ret) + goto done; + ret = ov9740_reg_write(client, OV9740_Y_ADDR_START_LO, y_start & 0xff); + if (ret) + goto done; + + ret = ov9740_reg_write(client, OV9740_X_ADDR_END_HI, x_end >> 8); + if (ret) + goto done; + ret = ov9740_reg_write(client, OV9740_X_ADDR_END_LO, x_end & 0xff); + if (ret) + goto done; + ret = ov9740_reg_write(client, OV9740_Y_ADDR_END_HI, y_end >> 8); + if (ret) + goto done; + ret = ov9740_reg_write(client, OV9740_Y_ADDR_END_LO, y_end & 0xff); + if (ret) + goto done; + + ret = ov9740_reg_write(client, OV9740_X_OUTPUT_SIZE_HI, width >> 8); + if (ret) + goto done; + ret = ov9740_reg_write(client, OV9740_X_OUTPUT_SIZE_LO, width & 0xff); + if (ret) + goto done; + ret = ov9740_reg_write(client, OV9740_Y_OUTPUT_SIZE_HI, height >> 8); + if (ret) + goto done; + ret = ov9740_reg_write(client, OV9740_Y_OUTPUT_SIZE_LO, height & 0xff); + if (ret) + goto done; + + ret = ov9740_reg_write(client, OV9740_ISP_CTRL1E, scale_input_x >> 8); + if (ret) + goto done; + ret = ov9740_reg_write(client, OV9740_ISP_CTRL1F, scale_input_x & 0xff); + if (ret) + goto done; + ret = ov9740_reg_write(client, OV9740_ISP_CTRL20, scale_input_y >> 8); + if (ret) + goto done; + ret = ov9740_reg_write(client, OV9740_ISP_CTRL21, scale_input_y & 0xff); + if (ret) + goto done; + + ret = ov9740_reg_write(client, OV9740_VFIFO_READ_START_HI, + (scale_input_x - width) >> 8); + if (ret) + goto done; + ret = ov9740_reg_write(client, OV9740_VFIFO_READ_START_LO, + (scale_input_x - width) & 0xff); + if (ret) + goto done; + + ret = ov9740_reg_write(client, OV9740_ISP_CTRL00, 0xff); + if (ret) + goto done; + ret = ov9740_reg_write(client, OV9740_ISP_CTRL01, 0xef | + (scaling << 4)); + if (ret) + goto done; + ret = ov9740_reg_write(client, OV9740_ISP_CTRL03, 0xff); + +done: + return ret; +} + +/* set the format we will capture in */ +static int ov9740_s_fmt(struct v4l2_subdev *sd, + struct v4l2_mbus_framefmt *mf) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct ov9740_priv *priv = to_ov9740(sd); + int ret; + + ret = ov9740_reg_write_array(client, ov9740_defaults, + ARRAY_SIZE(ov9740_defaults)); + if (ret < 0) + return ret; + + ret = ov9740_set_res(client, mf->width, mf->height); + if (ret < 0) + return ret; + + priv->current_mf = *mf; + return ret; +} + +static int ov9740_set_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct v4l2_mbus_framefmt *mf = &format->format; + + if (format->pad) + return -EINVAL; + + ov9740_res_roundup(&mf->width, &mf->height); + + mf->field = V4L2_FIELD_NONE; + mf->code = MEDIA_BUS_FMT_YUYV8_2X8; + mf->colorspace = V4L2_COLORSPACE_SRGB; + + if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) + return ov9740_s_fmt(sd, mf); + cfg->try_fmt = *mf; + return 0; +} + +static int ov9740_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_mbus_code_enum *code) +{ + if (code->pad || code->index >= ARRAY_SIZE(ov9740_codes)) + return -EINVAL; + + code->code = ov9740_codes[code->index]; + + return 0; +} + +static int ov9740_get_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel) +{ + if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) + return -EINVAL; + + switch (sel->target) { + case V4L2_SEL_TGT_CROP_BOUNDS: + case V4L2_SEL_TGT_CROP_DEFAULT: + case V4L2_SEL_TGT_CROP: + sel->r.left = 0; + sel->r.top = 0; + sel->r.width = OV9740_MAX_WIDTH; + sel->r.height = OV9740_MAX_HEIGHT; + return 0; + default: + return -EINVAL; + } +} + +/* Set status of additional camera capabilities */ +static int ov9740_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct ov9740_priv *priv = + container_of(ctrl->handler, struct ov9740_priv, hdl); + + switch (ctrl->id) { + case V4L2_CID_VFLIP: + priv->flag_vflip = ctrl->val; + break; + case V4L2_CID_HFLIP: + priv->flag_hflip = ctrl->val; + break; + default: + return -EINVAL; + } + + return 0; +} + +static int ov9740_s_power(struct v4l2_subdev *sd, int on) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + struct ov9740_priv *priv = to_ov9740(sd); + int ret; + + if (on) { + ret = soc_camera_power_on(&client->dev, ssdd, priv->clk); + if (ret < 0) + return ret; + + if (priv->current_enable) { + ov9740_s_fmt(sd, &priv->current_mf); + ov9740_s_stream(sd, 1); + } + } else { + if (priv->current_enable) { + ov9740_s_stream(sd, 0); + priv->current_enable = true; + } + + soc_camera_power_off(&client->dev, ssdd, priv->clk); + } + + return 0; +} + +#ifdef CONFIG_VIDEO_ADV_DEBUG +static int ov9740_get_register(struct v4l2_subdev *sd, + struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + int ret; + u8 val; + + if (reg->reg & ~0xffff) + return -EINVAL; + + reg->size = 2; + + ret = ov9740_reg_read(client, reg->reg, &val); + if (ret) + return ret; + + reg->val = (__u64)val; + + return ret; +} + +static int ov9740_set_register(struct v4l2_subdev *sd, + const struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (reg->reg & ~0xffff || reg->val & ~0xff) + return -EINVAL; + + return ov9740_reg_write(client, reg->reg, reg->val); +} +#endif + +static int ov9740_video_probe(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct ov9740_priv *priv = to_ov9740(sd); + u8 modelhi, modello; + int ret; + + ret = ov9740_s_power(&priv->subdev, 1); + if (ret < 0) + return ret; + + /* + * check and show product ID and manufacturer ID + */ + ret = ov9740_reg_read(client, OV9740_MODEL_ID_HI, &modelhi); + if (ret < 0) + goto done; + + ret = ov9740_reg_read(client, OV9740_MODEL_ID_LO, &modello); + if (ret < 0) + goto done; + + priv->model = (modelhi << 8) | modello; + + ret = ov9740_reg_read(client, OV9740_REVISION_NUMBER, &priv->revision); + if (ret < 0) + goto done; + + ret = ov9740_reg_read(client, OV9740_MANUFACTURER_ID, &priv->manid); + if (ret < 0) + goto done; + + ret = ov9740_reg_read(client, OV9740_SMIA_VERSION, &priv->smiaver); + if (ret < 0) + goto done; + + if (priv->model != 0x9740) { + ret = -ENODEV; + goto done; + } + + dev_info(&client->dev, "ov9740 Model ID 0x%04x, Revision 0x%02x, Manufacturer 0x%02x, SMIA Version 0x%02x\n", + priv->model, priv->revision, priv->manid, priv->smiaver); + + ret = v4l2_ctrl_handler_setup(&priv->hdl); + +done: + ov9740_s_power(&priv->subdev, 0); + return ret; +} + +/* Request bus settings on camera side */ +static int ov9740_g_mbus_config(struct v4l2_subdev *sd, + struct v4l2_mbus_config *cfg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + + cfg->flags = V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_MASTER | + V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_HIGH | + V4L2_MBUS_DATA_ACTIVE_HIGH; + cfg->type = V4L2_MBUS_PARALLEL; + cfg->flags = soc_camera_apply_board_flags(ssdd, cfg); + + return 0; +} + +static const struct v4l2_subdev_video_ops ov9740_video_ops = { + .s_stream = ov9740_s_stream, + .g_mbus_config = ov9740_g_mbus_config, +}; + +static const struct v4l2_subdev_core_ops ov9740_core_ops = { + .s_power = ov9740_s_power, +#ifdef CONFIG_VIDEO_ADV_DEBUG + .g_register = ov9740_get_register, + .s_register = ov9740_set_register, +#endif +}; + +static const struct v4l2_subdev_pad_ops ov9740_pad_ops = { + .enum_mbus_code = ov9740_enum_mbus_code, + .get_selection = ov9740_get_selection, + .set_fmt = ov9740_set_fmt, +}; + +static const struct v4l2_subdev_ops ov9740_subdev_ops = { + .core = &ov9740_core_ops, + .video = &ov9740_video_ops, + .pad = &ov9740_pad_ops, +}; + +static const struct v4l2_ctrl_ops ov9740_ctrl_ops = { + .s_ctrl = ov9740_s_ctrl, +}; + +/* + * i2c_driver function + */ +static int ov9740_probe(struct i2c_client *client, + const struct i2c_device_id *did) +{ + struct ov9740_priv *priv; + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + int ret; + + if (!ssdd) { + dev_err(&client->dev, "Missing platform_data for driver\n"); + return -EINVAL; + } + + priv = devm_kzalloc(&client->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + v4l2_i2c_subdev_init(&priv->subdev, client, &ov9740_subdev_ops); + v4l2_ctrl_handler_init(&priv->hdl, 13); + v4l2_ctrl_new_std(&priv->hdl, &ov9740_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 0); + v4l2_ctrl_new_std(&priv->hdl, &ov9740_ctrl_ops, + V4L2_CID_HFLIP, 0, 1, 1, 0); + priv->subdev.ctrl_handler = &priv->hdl; + if (priv->hdl.error) + return priv->hdl.error; + + priv->clk = v4l2_clk_get(&client->dev, "mclk"); + if (IS_ERR(priv->clk)) { + ret = PTR_ERR(priv->clk); + goto eclkget; + } + + ret = ov9740_video_probe(client); + if (ret < 0) { + v4l2_clk_put(priv->clk); +eclkget: + v4l2_ctrl_handler_free(&priv->hdl); + } + + return ret; +} + +static int ov9740_remove(struct i2c_client *client) +{ + struct ov9740_priv *priv = i2c_get_clientdata(client); + + v4l2_clk_put(priv->clk); + v4l2_device_unregister_subdev(&priv->subdev); + v4l2_ctrl_handler_free(&priv->hdl); + return 0; +} + +static const struct i2c_device_id ov9740_id[] = { + { "ov9740", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, ov9740_id); + +static struct i2c_driver ov9740_i2c_driver = { + .driver = { + .name = "ov9740", + }, + .probe = ov9740_probe, + .remove = ov9740_remove, + .id_table = ov9740_id, +}; + +module_i2c_driver(ov9740_i2c_driver); + +MODULE_DESCRIPTION("SoC Camera driver for OmniVision OV9740"); +MODULE_AUTHOR("Andrew Chew <achew@nvidia.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/media/i2c/soc_camera/rj54n1cb0c.c b/drivers/media/i2c/soc_camera/rj54n1cb0c.c new file mode 100644 index 000000000..02398d0bc --- /dev/null +++ b/drivers/media/i2c/soc_camera/rj54n1cb0c.c @@ -0,0 +1,1416 @@ +/* + * Driver for RJ54N1CB0C CMOS Image Sensor from Sharp + * + * Copyright (C) 2009, Guennadi Liakhovetski <g.liakhovetski@gmx.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/delay.h> +#include <linux/i2c.h> +#include <linux/slab.h> +#include <linux/v4l2-mediabus.h> +#include <linux/videodev2.h> +#include <linux/module.h> + +#include <media/i2c/rj54n1cb0c.h> +#include <media/soc_camera.h> +#include <media/v4l2-clk.h> +#include <media/v4l2-subdev.h> +#include <media/v4l2-ctrls.h> + +#define RJ54N1_DEV_CODE 0x0400 +#define RJ54N1_DEV_CODE2 0x0401 +#define RJ54N1_OUT_SEL 0x0403 +#define RJ54N1_XY_OUTPUT_SIZE_S_H 0x0404 +#define RJ54N1_X_OUTPUT_SIZE_S_L 0x0405 +#define RJ54N1_Y_OUTPUT_SIZE_S_L 0x0406 +#define RJ54N1_XY_OUTPUT_SIZE_P_H 0x0407 +#define RJ54N1_X_OUTPUT_SIZE_P_L 0x0408 +#define RJ54N1_Y_OUTPUT_SIZE_P_L 0x0409 +#define RJ54N1_LINE_LENGTH_PCK_S_H 0x040a +#define RJ54N1_LINE_LENGTH_PCK_S_L 0x040b +#define RJ54N1_LINE_LENGTH_PCK_P_H 0x040c +#define RJ54N1_LINE_LENGTH_PCK_P_L 0x040d +#define RJ54N1_RESIZE_N 0x040e +#define RJ54N1_RESIZE_N_STEP 0x040f +#define RJ54N1_RESIZE_STEP 0x0410 +#define RJ54N1_RESIZE_HOLD_H 0x0411 +#define RJ54N1_RESIZE_HOLD_L 0x0412 +#define RJ54N1_H_OBEN_OFS 0x0413 +#define RJ54N1_V_OBEN_OFS 0x0414 +#define RJ54N1_RESIZE_CONTROL 0x0415 +#define RJ54N1_STILL_CONTROL 0x0417 +#define RJ54N1_INC_USE_SEL_H 0x0425 +#define RJ54N1_INC_USE_SEL_L 0x0426 +#define RJ54N1_MIRROR_STILL_MODE 0x0427 +#define RJ54N1_INIT_START 0x0428 +#define RJ54N1_SCALE_1_2_LEV 0x0429 +#define RJ54N1_SCALE_4_LEV 0x042a +#define RJ54N1_Y_GAIN 0x04d8 +#define RJ54N1_APT_GAIN_UP 0x04fa +#define RJ54N1_RA_SEL_UL 0x0530 +#define RJ54N1_BYTE_SWAP 0x0531 +#define RJ54N1_OUT_SIGPO 0x053b +#define RJ54N1_WB_SEL_WEIGHT_I 0x054e +#define RJ54N1_BIT8_WB 0x0569 +#define RJ54N1_HCAPS_WB 0x056a +#define RJ54N1_VCAPS_WB 0x056b +#define RJ54N1_HCAPE_WB 0x056c +#define RJ54N1_VCAPE_WB 0x056d +#define RJ54N1_EXPOSURE_CONTROL 0x058c +#define RJ54N1_FRAME_LENGTH_S_H 0x0595 +#define RJ54N1_FRAME_LENGTH_S_L 0x0596 +#define RJ54N1_FRAME_LENGTH_P_H 0x0597 +#define RJ54N1_FRAME_LENGTH_P_L 0x0598 +#define RJ54N1_PEAK_H 0x05b7 +#define RJ54N1_PEAK_50 0x05b8 +#define RJ54N1_PEAK_60 0x05b9 +#define RJ54N1_PEAK_DIFF 0x05ba +#define RJ54N1_IOC 0x05ef +#define RJ54N1_TG_BYPASS 0x0700 +#define RJ54N1_PLL_L 0x0701 +#define RJ54N1_PLL_N 0x0702 +#define RJ54N1_PLL_EN 0x0704 +#define RJ54N1_RATIO_TG 0x0706 +#define RJ54N1_RATIO_T 0x0707 +#define RJ54N1_RATIO_R 0x0708 +#define RJ54N1_RAMP_TGCLK_EN 0x0709 +#define RJ54N1_OCLK_DSP 0x0710 +#define RJ54N1_RATIO_OP 0x0711 +#define RJ54N1_RATIO_O 0x0712 +#define RJ54N1_OCLK_SEL_EN 0x0713 +#define RJ54N1_CLK_RST 0x0717 +#define RJ54N1_RESET_STANDBY 0x0718 +#define RJ54N1_FWFLG 0x07fe + +#define E_EXCLK (1 << 7) +#define SOFT_STDBY (1 << 4) +#define SEN_RSTX (1 << 2) +#define TG_RSTX (1 << 1) +#define DSP_RSTX (1 << 0) + +#define RESIZE_HOLD_SEL (1 << 2) +#define RESIZE_GO (1 << 1) + +/* + * When cropping, the camera automatically centers the cropped region, there + * doesn't seem to be a way to specify an explicit location of the rectangle. + */ +#define RJ54N1_COLUMN_SKIP 0 +#define RJ54N1_ROW_SKIP 0 +#define RJ54N1_MAX_WIDTH 1600 +#define RJ54N1_MAX_HEIGHT 1200 + +#define PLL_L 2 +#define PLL_N 0x31 + +/* I2C addresses: 0x50, 0x51, 0x60, 0x61 */ + +/* RJ54N1CB0C has only one fixed colorspace per pixelcode */ +struct rj54n1_datafmt { + u32 code; + enum v4l2_colorspace colorspace; +}; + +/* Find a data format by a pixel code in an array */ +static const struct rj54n1_datafmt *rj54n1_find_datafmt( + u32 code, const struct rj54n1_datafmt *fmt, + int n) +{ + int i; + for (i = 0; i < n; i++) + if (fmt[i].code == code) + return fmt + i; + + return NULL; +} + +static const struct rj54n1_datafmt rj54n1_colour_fmts[] = { + {MEDIA_BUS_FMT_YUYV8_2X8, V4L2_COLORSPACE_JPEG}, + {MEDIA_BUS_FMT_YVYU8_2X8, V4L2_COLORSPACE_JPEG}, + {MEDIA_BUS_FMT_RGB565_2X8_LE, V4L2_COLORSPACE_SRGB}, + {MEDIA_BUS_FMT_RGB565_2X8_BE, V4L2_COLORSPACE_SRGB}, + {MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE, V4L2_COLORSPACE_SRGB}, + {MEDIA_BUS_FMT_SBGGR10_2X8_PADLO_LE, V4L2_COLORSPACE_SRGB}, + {MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_BE, V4L2_COLORSPACE_SRGB}, + {MEDIA_BUS_FMT_SBGGR10_2X8_PADLO_BE, V4L2_COLORSPACE_SRGB}, + {MEDIA_BUS_FMT_SBGGR10_1X10, V4L2_COLORSPACE_SRGB}, +}; + +struct rj54n1_clock_div { + u8 ratio_tg; /* can be 0 or an odd number */ + u8 ratio_t; + u8 ratio_r; + u8 ratio_op; + u8 ratio_o; +}; + +struct rj54n1 { + struct v4l2_subdev subdev; + struct v4l2_ctrl_handler hdl; + struct v4l2_clk *clk; + struct rj54n1_clock_div clk_div; + const struct rj54n1_datafmt *fmt; + struct v4l2_rect rect; /* Sensor window */ + unsigned int tgclk_mhz; + bool auto_wb; + unsigned short width; /* Output window */ + unsigned short height; + unsigned short resize; /* Sensor * 1024 / resize = Output */ + unsigned short scale; + u8 bank; +}; + +struct rj54n1_reg_val { + u16 reg; + u8 val; +}; + +static const struct rj54n1_reg_val bank_4[] = { + {0x417, 0}, + {0x42c, 0}, + {0x42d, 0xf0}, + {0x42e, 0}, + {0x42f, 0x50}, + {0x430, 0xf5}, + {0x431, 0x16}, + {0x432, 0x20}, + {0x433, 0}, + {0x434, 0xc8}, + {0x43c, 8}, + {0x43e, 0x90}, + {0x445, 0x83}, + {0x4ba, 0x58}, + {0x4bb, 4}, + {0x4bc, 0x20}, + {0x4db, 4}, + {0x4fe, 2}, +}; + +static const struct rj54n1_reg_val bank_5[] = { + {0x514, 0}, + {0x516, 0}, + {0x518, 0}, + {0x51a, 0}, + {0x51d, 0xff}, + {0x56f, 0x28}, + {0x575, 0x40}, + {0x5bc, 0x48}, + {0x5c1, 6}, + {0x5e5, 0x11}, + {0x5e6, 0x43}, + {0x5e7, 0x33}, + {0x5e8, 0x21}, + {0x5e9, 0x30}, + {0x5ea, 0x0}, + {0x5eb, 0xa5}, + {0x5ec, 0xff}, + {0x5fe, 2}, +}; + +static const struct rj54n1_reg_val bank_7[] = { + {0x70a, 0}, + {0x714, 0xff}, + {0x715, 0xff}, + {0x716, 0x1f}, + {0x7FE, 2}, +}; + +static const struct rj54n1_reg_val bank_8[] = { + {0x800, 0x00}, + {0x801, 0x01}, + {0x802, 0x61}, + {0x805, 0x00}, + {0x806, 0x00}, + {0x807, 0x00}, + {0x808, 0x00}, + {0x809, 0x01}, + {0x80A, 0x61}, + {0x80B, 0x00}, + {0x80C, 0x01}, + {0x80D, 0x00}, + {0x80E, 0x00}, + {0x80F, 0x00}, + {0x810, 0x00}, + {0x811, 0x01}, + {0x812, 0x61}, + {0x813, 0x00}, + {0x814, 0x11}, + {0x815, 0x00}, + {0x816, 0x41}, + {0x817, 0x00}, + {0x818, 0x51}, + {0x819, 0x01}, + {0x81A, 0x1F}, + {0x81B, 0x00}, + {0x81C, 0x01}, + {0x81D, 0x00}, + {0x81E, 0x11}, + {0x81F, 0x00}, + {0x820, 0x41}, + {0x821, 0x00}, + {0x822, 0x51}, + {0x823, 0x00}, + {0x824, 0x00}, + {0x825, 0x00}, + {0x826, 0x47}, + {0x827, 0x01}, + {0x828, 0x4F}, + {0x829, 0x00}, + {0x82A, 0x00}, + {0x82B, 0x00}, + {0x82C, 0x30}, + {0x82D, 0x00}, + {0x82E, 0x40}, + {0x82F, 0x00}, + {0x830, 0xB3}, + {0x831, 0x00}, + {0x832, 0xE3}, + {0x833, 0x00}, + {0x834, 0x00}, + {0x835, 0x00}, + {0x836, 0x00}, + {0x837, 0x00}, + {0x838, 0x00}, + {0x839, 0x01}, + {0x83A, 0x61}, + {0x83B, 0x00}, + {0x83C, 0x01}, + {0x83D, 0x00}, + {0x83E, 0x00}, + {0x83F, 0x00}, + {0x840, 0x00}, + {0x841, 0x01}, + {0x842, 0x61}, + {0x843, 0x00}, + {0x844, 0x1D}, + {0x845, 0x00}, + {0x846, 0x00}, + {0x847, 0x00}, + {0x848, 0x00}, + {0x849, 0x01}, + {0x84A, 0x1F}, + {0x84B, 0x00}, + {0x84C, 0x05}, + {0x84D, 0x00}, + {0x84E, 0x19}, + {0x84F, 0x01}, + {0x850, 0x21}, + {0x851, 0x01}, + {0x852, 0x5D}, + {0x853, 0x00}, + {0x854, 0x00}, + {0x855, 0x00}, + {0x856, 0x19}, + {0x857, 0x01}, + {0x858, 0x21}, + {0x859, 0x00}, + {0x85A, 0x00}, + {0x85B, 0x00}, + {0x85C, 0x00}, + {0x85D, 0x00}, + {0x85E, 0x00}, + {0x85F, 0x00}, + {0x860, 0xB3}, + {0x861, 0x00}, + {0x862, 0xE3}, + {0x863, 0x00}, + {0x864, 0x00}, + {0x865, 0x00}, + {0x866, 0x00}, + {0x867, 0x00}, + {0x868, 0x00}, + {0x869, 0xE2}, + {0x86A, 0x00}, + {0x86B, 0x01}, + {0x86C, 0x06}, + {0x86D, 0x00}, + {0x86E, 0x00}, + {0x86F, 0x00}, + {0x870, 0x60}, + {0x871, 0x8C}, + {0x872, 0x10}, + {0x873, 0x00}, + {0x874, 0xE0}, + {0x875, 0x00}, + {0x876, 0x27}, + {0x877, 0x01}, + {0x878, 0x00}, + {0x879, 0x00}, + {0x87A, 0x00}, + {0x87B, 0x03}, + {0x87C, 0x00}, + {0x87D, 0x00}, + {0x87E, 0x00}, + {0x87F, 0x00}, + {0x880, 0x00}, + {0x881, 0x00}, + {0x882, 0x00}, + {0x883, 0x00}, + {0x884, 0x00}, + {0x885, 0x00}, + {0x886, 0xF8}, + {0x887, 0x00}, + {0x888, 0x03}, + {0x889, 0x00}, + {0x88A, 0x64}, + {0x88B, 0x00}, + {0x88C, 0x03}, + {0x88D, 0x00}, + {0x88E, 0xB1}, + {0x88F, 0x00}, + {0x890, 0x03}, + {0x891, 0x01}, + {0x892, 0x1D}, + {0x893, 0x00}, + {0x894, 0x03}, + {0x895, 0x01}, + {0x896, 0x4B}, + {0x897, 0x00}, + {0x898, 0xE5}, + {0x899, 0x00}, + {0x89A, 0x01}, + {0x89B, 0x00}, + {0x89C, 0x01}, + {0x89D, 0x04}, + {0x89E, 0xC8}, + {0x89F, 0x00}, + {0x8A0, 0x01}, + {0x8A1, 0x01}, + {0x8A2, 0x61}, + {0x8A3, 0x00}, + {0x8A4, 0x01}, + {0x8A5, 0x00}, + {0x8A6, 0x00}, + {0x8A7, 0x00}, + {0x8A8, 0x00}, + {0x8A9, 0x00}, + {0x8AA, 0x7F}, + {0x8AB, 0x03}, + {0x8AC, 0x00}, + {0x8AD, 0x00}, + {0x8AE, 0x00}, + {0x8AF, 0x00}, + {0x8B0, 0x00}, + {0x8B1, 0x00}, + {0x8B6, 0x00}, + {0x8B7, 0x01}, + {0x8B8, 0x00}, + {0x8B9, 0x00}, + {0x8BA, 0x02}, + {0x8BB, 0x00}, + {0x8BC, 0xFF}, + {0x8BD, 0x00}, + {0x8FE, 2}, +}; + +static const struct rj54n1_reg_val bank_10[] = { + {0x10bf, 0x69} +}; + +/* Clock dividers - these are default register values, divider = register + 1 */ +static const struct rj54n1_clock_div clk_div = { + .ratio_tg = 3 /* default: 5 */, + .ratio_t = 4 /* default: 1 */, + .ratio_r = 4 /* default: 0 */, + .ratio_op = 1 /* default: 5 */, + .ratio_o = 9 /* default: 0 */, +}; + +static struct rj54n1 *to_rj54n1(const struct i2c_client *client) +{ + return container_of(i2c_get_clientdata(client), struct rj54n1, subdev); +} + +static int reg_read(struct i2c_client *client, const u16 reg) +{ + struct rj54n1 *rj54n1 = to_rj54n1(client); + int ret; + + /* set bank */ + if (rj54n1->bank != reg >> 8) { + dev_dbg(&client->dev, "[0x%x] = 0x%x\n", 0xff, reg >> 8); + ret = i2c_smbus_write_byte_data(client, 0xff, reg >> 8); + if (ret < 0) + return ret; + rj54n1->bank = reg >> 8; + } + return i2c_smbus_read_byte_data(client, reg & 0xff); +} + +static int reg_write(struct i2c_client *client, const u16 reg, + const u8 data) +{ + struct rj54n1 *rj54n1 = to_rj54n1(client); + int ret; + + /* set bank */ + if (rj54n1->bank != reg >> 8) { + dev_dbg(&client->dev, "[0x%x] = 0x%x\n", 0xff, reg >> 8); + ret = i2c_smbus_write_byte_data(client, 0xff, reg >> 8); + if (ret < 0) + return ret; + rj54n1->bank = reg >> 8; + } + dev_dbg(&client->dev, "[0x%x] = 0x%x\n", reg & 0xff, data); + return i2c_smbus_write_byte_data(client, reg & 0xff, data); +} + +static int reg_set(struct i2c_client *client, const u16 reg, + const u8 data, const u8 mask) +{ + int ret; + + ret = reg_read(client, reg); + if (ret < 0) + return ret; + return reg_write(client, reg, (ret & ~mask) | (data & mask)); +} + +static int reg_write_multiple(struct i2c_client *client, + const struct rj54n1_reg_val *rv, const int n) +{ + int i, ret; + + for (i = 0; i < n; i++) { + ret = reg_write(client, rv->reg, rv->val); + if (ret < 0) + return ret; + rv++; + } + + return 0; +} + +static int rj54n1_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_mbus_code_enum *code) +{ + if (code->pad || code->index >= ARRAY_SIZE(rj54n1_colour_fmts)) + return -EINVAL; + + code->code = rj54n1_colour_fmts[code->index].code; + return 0; +} + +static int rj54n1_s_stream(struct v4l2_subdev *sd, int enable) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + /* Switch between preview and still shot modes */ + return reg_set(client, RJ54N1_STILL_CONTROL, (!enable) << 7, 0x80); +} + +static int rj54n1_set_rect(struct i2c_client *client, + u16 reg_x, u16 reg_y, u16 reg_xy, + u32 width, u32 height) +{ + int ret; + + ret = reg_write(client, reg_xy, + ((width >> 4) & 0x70) | + ((height >> 8) & 7)); + + if (!ret) + ret = reg_write(client, reg_x, width & 0xff); + if (!ret) + ret = reg_write(client, reg_y, height & 0xff); + + return ret; +} + +/* + * Some commands, specifically certain initialisation sequences, require + * a commit operation. + */ +static int rj54n1_commit(struct i2c_client *client) +{ + int ret = reg_write(client, RJ54N1_INIT_START, 1); + msleep(10); + if (!ret) + ret = reg_write(client, RJ54N1_INIT_START, 0); + return ret; +} + +static int rj54n1_sensor_scale(struct v4l2_subdev *sd, s32 *in_w, s32 *in_h, + s32 *out_w, s32 *out_h); + +static int rj54n1_set_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct rj54n1 *rj54n1 = to_rj54n1(client); + const struct v4l2_rect *rect = &sel->r; + int dummy = 0, output_w, output_h, + input_w = rect->width, input_h = rect->height; + int ret; + + if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE || + sel->target != V4L2_SEL_TGT_CROP) + return -EINVAL; + + /* arbitrary minimum width and height, edges unimportant */ + soc_camera_limit_side(&dummy, &input_w, + RJ54N1_COLUMN_SKIP, 8, RJ54N1_MAX_WIDTH); + + soc_camera_limit_side(&dummy, &input_h, + RJ54N1_ROW_SKIP, 8, RJ54N1_MAX_HEIGHT); + + output_w = (input_w * 1024 + rj54n1->resize / 2) / rj54n1->resize; + output_h = (input_h * 1024 + rj54n1->resize / 2) / rj54n1->resize; + + dev_dbg(&client->dev, "Scaling for %dx%d : %u = %dx%d\n", + input_w, input_h, rj54n1->resize, output_w, output_h); + + ret = rj54n1_sensor_scale(sd, &input_w, &input_h, &output_w, &output_h); + if (ret < 0) + return ret; + + rj54n1->width = output_w; + rj54n1->height = output_h; + rj54n1->resize = ret; + rj54n1->rect.width = input_w; + rj54n1->rect.height = input_h; + + return 0; +} + +static int rj54n1_get_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct rj54n1 *rj54n1 = to_rj54n1(client); + + if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) + return -EINVAL; + + switch (sel->target) { + case V4L2_SEL_TGT_CROP_BOUNDS: + case V4L2_SEL_TGT_CROP_DEFAULT: + sel->r.left = RJ54N1_COLUMN_SKIP; + sel->r.top = RJ54N1_ROW_SKIP; + sel->r.width = RJ54N1_MAX_WIDTH; + sel->r.height = RJ54N1_MAX_HEIGHT; + return 0; + case V4L2_SEL_TGT_CROP: + sel->r = rj54n1->rect; + return 0; + default: + return -EINVAL; + } +} + +static int rj54n1_get_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct v4l2_mbus_framefmt *mf = &format->format; + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct rj54n1 *rj54n1 = to_rj54n1(client); + + if (format->pad) + return -EINVAL; + + mf->code = rj54n1->fmt->code; + mf->colorspace = rj54n1->fmt->colorspace; + mf->field = V4L2_FIELD_NONE; + mf->width = rj54n1->width; + mf->height = rj54n1->height; + + return 0; +} + +/* + * The actual geometry configuration routine. It scales the input window into + * the output one, updates the window sizes and returns an error or the resize + * coefficient on success. Note: we only use the "Fixed Scaling" on this camera. + */ +static int rj54n1_sensor_scale(struct v4l2_subdev *sd, s32 *in_w, s32 *in_h, + s32 *out_w, s32 *out_h) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct rj54n1 *rj54n1 = to_rj54n1(client); + unsigned int skip, resize, input_w = *in_w, input_h = *in_h, + output_w = *out_w, output_h = *out_h; + u16 inc_sel, wb_bit8, wb_left, wb_right, wb_top, wb_bottom; + unsigned int peak, peak_50, peak_60; + int ret; + + /* + * We have a problem with crops, where the window is larger than 512x384 + * and output window is larger than a half of the input one. In this + * case we have to either reduce the input window to equal or below + * 512x384 or the output window to equal or below 1/2 of the input. + */ + if (output_w > max(512U, input_w / 2)) { + if (2 * output_w > RJ54N1_MAX_WIDTH) { + input_w = RJ54N1_MAX_WIDTH; + output_w = RJ54N1_MAX_WIDTH / 2; + } else { + input_w = output_w * 2; + } + + dev_dbg(&client->dev, "Adjusted output width: in %u, out %u\n", + input_w, output_w); + } + + if (output_h > max(384U, input_h / 2)) { + if (2 * output_h > RJ54N1_MAX_HEIGHT) { + input_h = RJ54N1_MAX_HEIGHT; + output_h = RJ54N1_MAX_HEIGHT / 2; + } else { + input_h = output_h * 2; + } + + dev_dbg(&client->dev, "Adjusted output height: in %u, out %u\n", + input_h, output_h); + } + + /* Idea: use the read mode for snapshots, handle separate geometries */ + ret = rj54n1_set_rect(client, RJ54N1_X_OUTPUT_SIZE_S_L, + RJ54N1_Y_OUTPUT_SIZE_S_L, + RJ54N1_XY_OUTPUT_SIZE_S_H, output_w, output_h); + if (!ret) + ret = rj54n1_set_rect(client, RJ54N1_X_OUTPUT_SIZE_P_L, + RJ54N1_Y_OUTPUT_SIZE_P_L, + RJ54N1_XY_OUTPUT_SIZE_P_H, output_w, output_h); + + if (ret < 0) + return ret; + + if (output_w > input_w && output_h > input_h) { + input_w = output_w; + input_h = output_h; + + resize = 1024; + } else { + unsigned int resize_x, resize_y; + resize_x = (input_w * 1024 + output_w / 2) / output_w; + resize_y = (input_h * 1024 + output_h / 2) / output_h; + + /* We want max(resize_x, resize_y), check if it still fits */ + if (resize_x > resize_y && + (output_h * resize_x + 512) / 1024 > RJ54N1_MAX_HEIGHT) + resize = (RJ54N1_MAX_HEIGHT * 1024 + output_h / 2) / + output_h; + else if (resize_y > resize_x && + (output_w * resize_y + 512) / 1024 > RJ54N1_MAX_WIDTH) + resize = (RJ54N1_MAX_WIDTH * 1024 + output_w / 2) / + output_w; + else + resize = max(resize_x, resize_y); + + /* Prohibited value ranges */ + switch (resize) { + case 2040 ... 2047: + resize = 2039; + break; + case 4080 ... 4095: + resize = 4079; + break; + case 8160 ... 8191: + resize = 8159; + break; + case 16320 ... 16384: + resize = 16319; + } + } + + /* Set scaling */ + ret = reg_write(client, RJ54N1_RESIZE_HOLD_L, resize & 0xff); + if (!ret) + ret = reg_write(client, RJ54N1_RESIZE_HOLD_H, resize >> 8); + + if (ret < 0) + return ret; + + /* + * Configure a skipping bitmask. The sensor will select a skipping value + * among set bits automatically. This is very unclear in the datasheet + * too. I was told, in this register one enables all skipping values, + * that are required for a specific resize, and the camera selects + * automatically, which ones to use. But it is unclear how to identify, + * which cropping values are needed. Secondly, why don't we just set all + * bits and let the camera choose? Would it increase processing time and + * reduce the framerate? Using 0xfffc for INC_USE_SEL doesn't seem to + * improve the image quality or stability for larger frames (see comment + * above), but I didn't check the framerate. + */ + skip = min(resize / 1024, 15U); + + inc_sel = 1 << skip; + + if (inc_sel <= 2) + inc_sel = 0xc; + else if (resize & 1023 && skip < 15) + inc_sel |= 1 << (skip + 1); + + ret = reg_write(client, RJ54N1_INC_USE_SEL_L, inc_sel & 0xfc); + if (!ret) + ret = reg_write(client, RJ54N1_INC_USE_SEL_H, inc_sel >> 8); + + if (!rj54n1->auto_wb) { + /* Auto white balance window */ + wb_left = output_w / 16; + wb_right = (3 * output_w / 4 - 3) / 4; + wb_top = output_h / 16; + wb_bottom = (3 * output_h / 4 - 3) / 4; + wb_bit8 = ((wb_left >> 2) & 0x40) | ((wb_top >> 4) & 0x10) | + ((wb_right >> 6) & 4) | ((wb_bottom >> 8) & 1); + + if (!ret) + ret = reg_write(client, RJ54N1_BIT8_WB, wb_bit8); + if (!ret) + ret = reg_write(client, RJ54N1_HCAPS_WB, wb_left); + if (!ret) + ret = reg_write(client, RJ54N1_VCAPS_WB, wb_top); + if (!ret) + ret = reg_write(client, RJ54N1_HCAPE_WB, wb_right); + if (!ret) + ret = reg_write(client, RJ54N1_VCAPE_WB, wb_bottom); + } + + /* Antiflicker */ + peak = 12 * RJ54N1_MAX_WIDTH * (1 << 14) * resize / rj54n1->tgclk_mhz / + 10000; + peak_50 = peak / 6; + peak_60 = peak / 5; + + if (!ret) + ret = reg_write(client, RJ54N1_PEAK_H, + ((peak_50 >> 4) & 0xf0) | (peak_60 >> 8)); + if (!ret) + ret = reg_write(client, RJ54N1_PEAK_50, peak_50); + if (!ret) + ret = reg_write(client, RJ54N1_PEAK_60, peak_60); + if (!ret) + ret = reg_write(client, RJ54N1_PEAK_DIFF, peak / 150); + + /* Start resizing */ + if (!ret) + ret = reg_write(client, RJ54N1_RESIZE_CONTROL, + RESIZE_HOLD_SEL | RESIZE_GO | 1); + + if (ret < 0) + return ret; + + /* Constant taken from manufacturer's example */ + msleep(230); + + ret = reg_write(client, RJ54N1_RESIZE_CONTROL, RESIZE_HOLD_SEL | 1); + if (ret < 0) + return ret; + + *in_w = (output_w * resize + 512) / 1024; + *in_h = (output_h * resize + 512) / 1024; + *out_w = output_w; + *out_h = output_h; + + dev_dbg(&client->dev, "Scaled for %dx%d : %u = %ux%u, skip %u\n", + *in_w, *in_h, resize, output_w, output_h, skip); + + return resize; +} + +static int rj54n1_set_clock(struct i2c_client *client) +{ + struct rj54n1 *rj54n1 = to_rj54n1(client); + int ret; + + /* Enable external clock */ + ret = reg_write(client, RJ54N1_RESET_STANDBY, E_EXCLK | SOFT_STDBY); + /* Leave stand-by. Note: use this when implementing suspend / resume */ + if (!ret) + ret = reg_write(client, RJ54N1_RESET_STANDBY, E_EXCLK); + + if (!ret) + ret = reg_write(client, RJ54N1_PLL_L, PLL_L); + if (!ret) + ret = reg_write(client, RJ54N1_PLL_N, PLL_N); + + /* TGCLK dividers */ + if (!ret) + ret = reg_write(client, RJ54N1_RATIO_TG, + rj54n1->clk_div.ratio_tg); + if (!ret) + ret = reg_write(client, RJ54N1_RATIO_T, + rj54n1->clk_div.ratio_t); + if (!ret) + ret = reg_write(client, RJ54N1_RATIO_R, + rj54n1->clk_div.ratio_r); + + /* Enable TGCLK & RAMP */ + if (!ret) + ret = reg_write(client, RJ54N1_RAMP_TGCLK_EN, 3); + + /* Disable clock output */ + if (!ret) + ret = reg_write(client, RJ54N1_OCLK_DSP, 0); + + /* Set divisors */ + if (!ret) + ret = reg_write(client, RJ54N1_RATIO_OP, + rj54n1->clk_div.ratio_op); + if (!ret) + ret = reg_write(client, RJ54N1_RATIO_O, + rj54n1->clk_div.ratio_o); + + /* Enable OCLK */ + if (!ret) + ret = reg_write(client, RJ54N1_OCLK_SEL_EN, 1); + + /* Use PLL for Timing Generator, write 2 to reserved bits */ + if (!ret) + ret = reg_write(client, RJ54N1_TG_BYPASS, 2); + + /* Take sensor out of reset */ + if (!ret) + ret = reg_write(client, RJ54N1_RESET_STANDBY, + E_EXCLK | SEN_RSTX); + /* Enable PLL */ + if (!ret) + ret = reg_write(client, RJ54N1_PLL_EN, 1); + + /* Wait for PLL to stabilise */ + msleep(10); + + /* Enable clock to frequency divider */ + if (!ret) + ret = reg_write(client, RJ54N1_CLK_RST, 1); + + if (!ret) + ret = reg_read(client, RJ54N1_CLK_RST); + if (ret != 1) { + dev_err(&client->dev, + "Resetting RJ54N1CB0C clock failed: %d!\n", ret); + return -EIO; + } + + /* Start the PLL */ + ret = reg_set(client, RJ54N1_OCLK_DSP, 1, 1); + + /* Enable OCLK */ + if (!ret) + ret = reg_write(client, RJ54N1_OCLK_SEL_EN, 1); + + return ret; +} + +static int rj54n1_reg_init(struct i2c_client *client) +{ + struct rj54n1 *rj54n1 = to_rj54n1(client); + int ret = rj54n1_set_clock(client); + + if (!ret) + ret = reg_write_multiple(client, bank_7, ARRAY_SIZE(bank_7)); + if (!ret) + ret = reg_write_multiple(client, bank_10, ARRAY_SIZE(bank_10)); + + /* Set binning divisors */ + if (!ret) + ret = reg_write(client, RJ54N1_SCALE_1_2_LEV, 3 | (7 << 4)); + if (!ret) + ret = reg_write(client, RJ54N1_SCALE_4_LEV, 0xf); + + /* Switch to fixed resize mode */ + if (!ret) + ret = reg_write(client, RJ54N1_RESIZE_CONTROL, + RESIZE_HOLD_SEL | 1); + + /* Set gain */ + if (!ret) + ret = reg_write(client, RJ54N1_Y_GAIN, 0x84); + + /* + * Mirror the image back: default is upside down and left-to-right... + * Set manual preview / still shot switching + */ + if (!ret) + ret = reg_write(client, RJ54N1_MIRROR_STILL_MODE, 0x27); + + if (!ret) + ret = reg_write_multiple(client, bank_4, ARRAY_SIZE(bank_4)); + + /* Auto exposure area */ + if (!ret) + ret = reg_write(client, RJ54N1_EXPOSURE_CONTROL, 0x80); + /* Check current auto WB config */ + if (!ret) + ret = reg_read(client, RJ54N1_WB_SEL_WEIGHT_I); + if (ret >= 0) { + rj54n1->auto_wb = ret & 0x80; + ret = reg_write_multiple(client, bank_5, ARRAY_SIZE(bank_5)); + } + if (!ret) + ret = reg_write_multiple(client, bank_8, ARRAY_SIZE(bank_8)); + + if (!ret) + ret = reg_write(client, RJ54N1_RESET_STANDBY, + E_EXCLK | DSP_RSTX | SEN_RSTX); + + /* Commit init */ + if (!ret) + ret = rj54n1_commit(client); + + /* Take DSP, TG, sensor out of reset */ + if (!ret) + ret = reg_write(client, RJ54N1_RESET_STANDBY, + E_EXCLK | DSP_RSTX | TG_RSTX | SEN_RSTX); + + /* Start register update? Same register as 0x?FE in many bank_* sets */ + if (!ret) + ret = reg_write(client, RJ54N1_FWFLG, 2); + + /* Constant taken from manufacturer's example */ + msleep(700); + + return ret; +} + +static int rj54n1_set_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct v4l2_mbus_framefmt *mf = &format->format; + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct rj54n1 *rj54n1 = to_rj54n1(client); + const struct rj54n1_datafmt *fmt; + int output_w, output_h, max_w, max_h, + input_w = rj54n1->rect.width, input_h = rj54n1->rect.height; + int align = mf->code == MEDIA_BUS_FMT_SBGGR10_1X10 || + mf->code == MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_BE || + mf->code == MEDIA_BUS_FMT_SBGGR10_2X8_PADLO_BE || + mf->code == MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE || + mf->code == MEDIA_BUS_FMT_SBGGR10_2X8_PADLO_LE; + int ret; + + if (format->pad) + return -EINVAL; + + dev_dbg(&client->dev, "%s: code = %d, width = %u, height = %u\n", + __func__, mf->code, mf->width, mf->height); + + fmt = rj54n1_find_datafmt(mf->code, rj54n1_colour_fmts, + ARRAY_SIZE(rj54n1_colour_fmts)); + if (!fmt) { + fmt = rj54n1->fmt; + mf->code = fmt->code; + } + + mf->field = V4L2_FIELD_NONE; + mf->colorspace = fmt->colorspace; + + v4l_bound_align_image(&mf->width, 112, RJ54N1_MAX_WIDTH, align, + &mf->height, 84, RJ54N1_MAX_HEIGHT, align, 0); + + if (format->which == V4L2_SUBDEV_FORMAT_TRY) { + cfg->try_fmt = *mf; + return 0; + } + + /* + * Verify if the sensor has just been powered on. TODO: replace this + * with proper PM, when a suitable API is available. + */ + ret = reg_read(client, RJ54N1_RESET_STANDBY); + if (ret < 0) + return ret; + + if (!(ret & E_EXCLK)) { + ret = rj54n1_reg_init(client); + if (ret < 0) + return ret; + } + + /* RA_SEL_UL is only relevant for raw modes, ignored otherwise. */ + switch (mf->code) { + case MEDIA_BUS_FMT_YUYV8_2X8: + ret = reg_write(client, RJ54N1_OUT_SEL, 0); + if (!ret) + ret = reg_set(client, RJ54N1_BYTE_SWAP, 8, 8); + break; + case MEDIA_BUS_FMT_YVYU8_2X8: + ret = reg_write(client, RJ54N1_OUT_SEL, 0); + if (!ret) + ret = reg_set(client, RJ54N1_BYTE_SWAP, 0, 8); + break; + case MEDIA_BUS_FMT_RGB565_2X8_LE: + ret = reg_write(client, RJ54N1_OUT_SEL, 0x11); + if (!ret) + ret = reg_set(client, RJ54N1_BYTE_SWAP, 8, 8); + break; + case MEDIA_BUS_FMT_RGB565_2X8_BE: + ret = reg_write(client, RJ54N1_OUT_SEL, 0x11); + if (!ret) + ret = reg_set(client, RJ54N1_BYTE_SWAP, 0, 8); + break; + case MEDIA_BUS_FMT_SBGGR10_2X8_PADLO_LE: + ret = reg_write(client, RJ54N1_OUT_SEL, 4); + if (!ret) + ret = reg_set(client, RJ54N1_BYTE_SWAP, 8, 8); + if (!ret) + ret = reg_write(client, RJ54N1_RA_SEL_UL, 0); + break; + case MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE: + ret = reg_write(client, RJ54N1_OUT_SEL, 4); + if (!ret) + ret = reg_set(client, RJ54N1_BYTE_SWAP, 8, 8); + if (!ret) + ret = reg_write(client, RJ54N1_RA_SEL_UL, 8); + break; + case MEDIA_BUS_FMT_SBGGR10_2X8_PADLO_BE: + ret = reg_write(client, RJ54N1_OUT_SEL, 4); + if (!ret) + ret = reg_set(client, RJ54N1_BYTE_SWAP, 0, 8); + if (!ret) + ret = reg_write(client, RJ54N1_RA_SEL_UL, 0); + break; + case MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_BE: + ret = reg_write(client, RJ54N1_OUT_SEL, 4); + if (!ret) + ret = reg_set(client, RJ54N1_BYTE_SWAP, 0, 8); + if (!ret) + ret = reg_write(client, RJ54N1_RA_SEL_UL, 8); + break; + case MEDIA_BUS_FMT_SBGGR10_1X10: + ret = reg_write(client, RJ54N1_OUT_SEL, 5); + break; + default: + ret = -EINVAL; + } + + /* Special case: a raw mode with 10 bits of data per clock tick */ + if (!ret) + ret = reg_set(client, RJ54N1_OCLK_SEL_EN, + (mf->code == MEDIA_BUS_FMT_SBGGR10_1X10) << 1, 2); + + if (ret < 0) + return ret; + + /* Supported scales 1:1 >= scale > 1:16 */ + max_w = mf->width * (16 * 1024 - 1) / 1024; + if (input_w > max_w) + input_w = max_w; + max_h = mf->height * (16 * 1024 - 1) / 1024; + if (input_h > max_h) + input_h = max_h; + + output_w = mf->width; + output_h = mf->height; + + ret = rj54n1_sensor_scale(sd, &input_w, &input_h, &output_w, &output_h); + if (ret < 0) + return ret; + + fmt = rj54n1_find_datafmt(mf->code, rj54n1_colour_fmts, + ARRAY_SIZE(rj54n1_colour_fmts)); + + rj54n1->fmt = fmt; + rj54n1->resize = ret; + rj54n1->rect.width = input_w; + rj54n1->rect.height = input_h; + rj54n1->width = output_w; + rj54n1->height = output_h; + + mf->width = output_w; + mf->height = output_h; + mf->field = V4L2_FIELD_NONE; + mf->colorspace = fmt->colorspace; + + return 0; +} + +#ifdef CONFIG_VIDEO_ADV_DEBUG +static int rj54n1_g_register(struct v4l2_subdev *sd, + struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (reg->reg < 0x400 || reg->reg > 0x1fff) + /* Registers > 0x0800 are only available from Sharp support */ + return -EINVAL; + + reg->size = 1; + reg->val = reg_read(client, reg->reg); + + if (reg->val > 0xff) + return -EIO; + + return 0; +} + +static int rj54n1_s_register(struct v4l2_subdev *sd, + const struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (reg->reg < 0x400 || reg->reg > 0x1fff) + /* Registers >= 0x0800 are only available from Sharp support */ + return -EINVAL; + + if (reg_write(client, reg->reg, reg->val) < 0) + return -EIO; + + return 0; +} +#endif + +static int rj54n1_s_power(struct v4l2_subdev *sd, int on) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + struct rj54n1 *rj54n1 = to_rj54n1(client); + + return soc_camera_set_power(&client->dev, ssdd, rj54n1->clk, on); +} + +static int rj54n1_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct rj54n1 *rj54n1 = container_of(ctrl->handler, struct rj54n1, hdl); + struct v4l2_subdev *sd = &rj54n1->subdev; + struct i2c_client *client = v4l2_get_subdevdata(sd); + int data; + + switch (ctrl->id) { + case V4L2_CID_VFLIP: + if (ctrl->val) + data = reg_set(client, RJ54N1_MIRROR_STILL_MODE, 0, 1); + else + data = reg_set(client, RJ54N1_MIRROR_STILL_MODE, 1, 1); + if (data < 0) + return -EIO; + return 0; + case V4L2_CID_HFLIP: + if (ctrl->val) + data = reg_set(client, RJ54N1_MIRROR_STILL_MODE, 0, 2); + else + data = reg_set(client, RJ54N1_MIRROR_STILL_MODE, 2, 2); + if (data < 0) + return -EIO; + return 0; + case V4L2_CID_GAIN: + if (reg_write(client, RJ54N1_Y_GAIN, ctrl->val * 2) < 0) + return -EIO; + return 0; + case V4L2_CID_AUTO_WHITE_BALANCE: + /* Auto WB area - whole image */ + if (reg_set(client, RJ54N1_WB_SEL_WEIGHT_I, ctrl->val << 7, + 0x80) < 0) + return -EIO; + rj54n1->auto_wb = ctrl->val; + return 0; + } + + return -EINVAL; +} + +static const struct v4l2_ctrl_ops rj54n1_ctrl_ops = { + .s_ctrl = rj54n1_s_ctrl, +}; + +static const struct v4l2_subdev_core_ops rj54n1_subdev_core_ops = { +#ifdef CONFIG_VIDEO_ADV_DEBUG + .g_register = rj54n1_g_register, + .s_register = rj54n1_s_register, +#endif + .s_power = rj54n1_s_power, +}; + +static int rj54n1_g_mbus_config(struct v4l2_subdev *sd, + struct v4l2_mbus_config *cfg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + + cfg->flags = + V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING | + V4L2_MBUS_MASTER | V4L2_MBUS_DATA_ACTIVE_HIGH | + V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_HIGH; + cfg->type = V4L2_MBUS_PARALLEL; + cfg->flags = soc_camera_apply_board_flags(ssdd, cfg); + + return 0; +} + +static int rj54n1_s_mbus_config(struct v4l2_subdev *sd, + const struct v4l2_mbus_config *cfg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + + /* Figures 2.5-1 to 2.5-3 - default falling pixclk edge */ + if (soc_camera_apply_board_flags(ssdd, cfg) & + V4L2_MBUS_PCLK_SAMPLE_RISING) + return reg_write(client, RJ54N1_OUT_SIGPO, 1 << 4); + else + return reg_write(client, RJ54N1_OUT_SIGPO, 0); +} + +static const struct v4l2_subdev_video_ops rj54n1_subdev_video_ops = { + .s_stream = rj54n1_s_stream, + .g_mbus_config = rj54n1_g_mbus_config, + .s_mbus_config = rj54n1_s_mbus_config, +}; + +static const struct v4l2_subdev_pad_ops rj54n1_subdev_pad_ops = { + .enum_mbus_code = rj54n1_enum_mbus_code, + .get_selection = rj54n1_get_selection, + .set_selection = rj54n1_set_selection, + .get_fmt = rj54n1_get_fmt, + .set_fmt = rj54n1_set_fmt, +}; + +static const struct v4l2_subdev_ops rj54n1_subdev_ops = { + .core = &rj54n1_subdev_core_ops, + .video = &rj54n1_subdev_video_ops, + .pad = &rj54n1_subdev_pad_ops, +}; + +/* + * Interface active, can use i2c. If it fails, it can indeed mean, that + * this wasn't our capture interface, so, we wait for the right one + */ +static int rj54n1_video_probe(struct i2c_client *client, + struct rj54n1_pdata *priv) +{ + struct rj54n1 *rj54n1 = to_rj54n1(client); + int data1, data2; + int ret; + + ret = rj54n1_s_power(&rj54n1->subdev, 1); + if (ret < 0) + return ret; + + /* Read out the chip version register */ + data1 = reg_read(client, RJ54N1_DEV_CODE); + data2 = reg_read(client, RJ54N1_DEV_CODE2); + + if (data1 != 0x51 || data2 != 0x10) { + ret = -ENODEV; + dev_info(&client->dev, "No RJ54N1CB0C found, read 0x%x:0x%x\n", + data1, data2); + goto done; + } + + /* Configure IOCTL polarity from the platform data: 0 or 1 << 7. */ + ret = reg_write(client, RJ54N1_IOC, priv->ioctl_high << 7); + if (ret < 0) + goto done; + + dev_info(&client->dev, "Detected a RJ54N1CB0C chip ID 0x%x:0x%x\n", + data1, data2); + + ret = v4l2_ctrl_handler_setup(&rj54n1->hdl); + +done: + rj54n1_s_power(&rj54n1->subdev, 0); + return ret; +} + +static int rj54n1_probe(struct i2c_client *client, + const struct i2c_device_id *did) +{ + struct rj54n1 *rj54n1; + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); + struct rj54n1_pdata *rj54n1_priv; + int ret; + + if (!ssdd || !ssdd->drv_priv) { + dev_err(&client->dev, "RJ54N1CB0C: missing platform data!\n"); + return -EINVAL; + } + + rj54n1_priv = ssdd->drv_priv; + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { + dev_warn(&adapter->dev, + "I2C-Adapter doesn't support I2C_FUNC_SMBUS_BYTE\n"); + return -EIO; + } + + rj54n1 = devm_kzalloc(&client->dev, sizeof(struct rj54n1), GFP_KERNEL); + if (!rj54n1) + return -ENOMEM; + + v4l2_i2c_subdev_init(&rj54n1->subdev, client, &rj54n1_subdev_ops); + v4l2_ctrl_handler_init(&rj54n1->hdl, 4); + v4l2_ctrl_new_std(&rj54n1->hdl, &rj54n1_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 0); + v4l2_ctrl_new_std(&rj54n1->hdl, &rj54n1_ctrl_ops, + V4L2_CID_HFLIP, 0, 1, 1, 0); + v4l2_ctrl_new_std(&rj54n1->hdl, &rj54n1_ctrl_ops, + V4L2_CID_GAIN, 0, 127, 1, 66); + v4l2_ctrl_new_std(&rj54n1->hdl, &rj54n1_ctrl_ops, + V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1); + rj54n1->subdev.ctrl_handler = &rj54n1->hdl; + if (rj54n1->hdl.error) + return rj54n1->hdl.error; + + rj54n1->clk_div = clk_div; + rj54n1->rect.left = RJ54N1_COLUMN_SKIP; + rj54n1->rect.top = RJ54N1_ROW_SKIP; + rj54n1->rect.width = RJ54N1_MAX_WIDTH; + rj54n1->rect.height = RJ54N1_MAX_HEIGHT; + rj54n1->width = RJ54N1_MAX_WIDTH; + rj54n1->height = RJ54N1_MAX_HEIGHT; + rj54n1->fmt = &rj54n1_colour_fmts[0]; + rj54n1->resize = 1024; + rj54n1->tgclk_mhz = (rj54n1_priv->mclk_freq / PLL_L * PLL_N) / + (clk_div.ratio_tg + 1) / (clk_div.ratio_t + 1); + + rj54n1->clk = v4l2_clk_get(&client->dev, "mclk"); + if (IS_ERR(rj54n1->clk)) { + ret = PTR_ERR(rj54n1->clk); + goto eclkget; + } + + ret = rj54n1_video_probe(client, rj54n1_priv); + if (ret < 0) { + v4l2_clk_put(rj54n1->clk); +eclkget: + v4l2_ctrl_handler_free(&rj54n1->hdl); + } + + return ret; +} + +static int rj54n1_remove(struct i2c_client *client) +{ + struct rj54n1 *rj54n1 = to_rj54n1(client); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + + v4l2_clk_put(rj54n1->clk); + v4l2_device_unregister_subdev(&rj54n1->subdev); + if (ssdd->free_bus) + ssdd->free_bus(ssdd); + v4l2_ctrl_handler_free(&rj54n1->hdl); + + return 0; +} + +static const struct i2c_device_id rj54n1_id[] = { + { "rj54n1cb0c", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, rj54n1_id); + +static struct i2c_driver rj54n1_i2c_driver = { + .driver = { + .name = "rj54n1cb0c", + }, + .probe = rj54n1_probe, + .remove = rj54n1_remove, + .id_table = rj54n1_id, +}; + +module_i2c_driver(rj54n1_i2c_driver); + +MODULE_DESCRIPTION("Sharp RJ54N1CB0C Camera driver"); +MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/media/i2c/soc_camera/tw9910.c b/drivers/media/i2c/soc_camera/tw9910.c new file mode 100644 index 000000000..bdb5e0a43 --- /dev/null +++ b/drivers/media/i2c/soc_camera/tw9910.c @@ -0,0 +1,999 @@ +/* + * tw9910 Video Driver + * + * Copyright (C) 2008 Renesas Solutions Corp. + * Kuninori Morimoto <morimoto.kuninori@renesas.com> + * + * Based on ov772x driver, + * + * Copyright (C) 2008 Kuninori Morimoto <morimoto.kuninori@renesas.com> + * Copyright 2006-7 Jonathan Corbet <corbet@lwn.net> + * Copyright (C) 2008 Magnus Damm + * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/slab.h> +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/v4l2-mediabus.h> +#include <linux/videodev2.h> + +#include <media/soc_camera.h> +#include <media/i2c/tw9910.h> +#include <media/v4l2-clk.h> +#include <media/v4l2-subdev.h> + +#define GET_ID(val) ((val & 0xF8) >> 3) +#define GET_REV(val) (val & 0x07) + +/* + * register offset + */ +#define ID 0x00 /* Product ID Code Register */ +#define STATUS1 0x01 /* Chip Status Register I */ +#define INFORM 0x02 /* Input Format */ +#define OPFORM 0x03 /* Output Format Control Register */ +#define DLYCTR 0x04 /* Hysteresis and HSYNC Delay Control */ +#define OUTCTR1 0x05 /* Output Control I */ +#define ACNTL1 0x06 /* Analog Control Register 1 */ +#define CROP_HI 0x07 /* Cropping Register, High */ +#define VDELAY_LO 0x08 /* Vertical Delay Register, Low */ +#define VACTIVE_LO 0x09 /* Vertical Active Register, Low */ +#define HDELAY_LO 0x0A /* Horizontal Delay Register, Low */ +#define HACTIVE_LO 0x0B /* Horizontal Active Register, Low */ +#define CNTRL1 0x0C /* Control Register I */ +#define VSCALE_LO 0x0D /* Vertical Scaling Register, Low */ +#define SCALE_HI 0x0E /* Scaling Register, High */ +#define HSCALE_LO 0x0F /* Horizontal Scaling Register, Low */ +#define BRIGHT 0x10 /* BRIGHTNESS Control Register */ +#define CONTRAST 0x11 /* CONTRAST Control Register */ +#define SHARPNESS 0x12 /* SHARPNESS Control Register I */ +#define SAT_U 0x13 /* Chroma (U) Gain Register */ +#define SAT_V 0x14 /* Chroma (V) Gain Register */ +#define HUE 0x15 /* Hue Control Register */ +#define CORING1 0x17 +#define CORING2 0x18 /* Coring and IF compensation */ +#define VBICNTL 0x19 /* VBI Control Register */ +#define ACNTL2 0x1A /* Analog Control 2 */ +#define OUTCTR2 0x1B /* Output Control 2 */ +#define SDT 0x1C /* Standard Selection */ +#define SDTR 0x1D /* Standard Recognition */ +#define TEST 0x1F /* Test Control Register */ +#define CLMPG 0x20 /* Clamping Gain */ +#define IAGC 0x21 /* Individual AGC Gain */ +#define AGCGAIN 0x22 /* AGC Gain */ +#define PEAKWT 0x23 /* White Peak Threshold */ +#define CLMPL 0x24 /* Clamp level */ +#define SYNCT 0x25 /* Sync Amplitude */ +#define MISSCNT 0x26 /* Sync Miss Count Register */ +#define PCLAMP 0x27 /* Clamp Position Register */ +#define VCNTL1 0x28 /* Vertical Control I */ +#define VCNTL2 0x29 /* Vertical Control II */ +#define CKILL 0x2A /* Color Killer Level Control */ +#define COMB 0x2B /* Comb Filter Control */ +#define LDLY 0x2C /* Luma Delay and H Filter Control */ +#define MISC1 0x2D /* Miscellaneous Control I */ +#define LOOP 0x2E /* LOOP Control Register */ +#define MISC2 0x2F /* Miscellaneous Control II */ +#define MVSN 0x30 /* Macrovision Detection */ +#define STATUS2 0x31 /* Chip STATUS II */ +#define HFREF 0x32 /* H monitor */ +#define CLMD 0x33 /* CLAMP MODE */ +#define IDCNTL 0x34 /* ID Detection Control */ +#define CLCNTL1 0x35 /* Clamp Control I */ +#define ANAPLLCTL 0x4C +#define VBIMIN 0x4D +#define HSLOWCTL 0x4E +#define WSS3 0x4F +#define FILLDATA 0x50 +#define SDID 0x51 +#define DID 0x52 +#define WSS1 0x53 +#define WSS2 0x54 +#define VVBI 0x55 +#define LCTL6 0x56 +#define LCTL7 0x57 +#define LCTL8 0x58 +#define LCTL9 0x59 +#define LCTL10 0x5A +#define LCTL11 0x5B +#define LCTL12 0x5C +#define LCTL13 0x5D +#define LCTL14 0x5E +#define LCTL15 0x5F +#define LCTL16 0x60 +#define LCTL17 0x61 +#define LCTL18 0x62 +#define LCTL19 0x63 +#define LCTL20 0x64 +#define LCTL21 0x65 +#define LCTL22 0x66 +#define LCTL23 0x67 +#define LCTL24 0x68 +#define LCTL25 0x69 +#define LCTL26 0x6A +#define HSBEGIN 0x6B +#define HSEND 0x6C +#define OVSDLY 0x6D +#define OVSEND 0x6E +#define VBIDELAY 0x6F + +/* + * register detail + */ + +/* INFORM */ +#define FC27_ON 0x40 /* 1 : Input crystal clock frequency is 27MHz */ +#define FC27_FF 0x00 /* 0 : Square pixel mode. */ + /* Must use 24.54MHz for 60Hz field rate */ + /* source or 29.5MHz for 50Hz field rate */ +#define IFSEL_S 0x10 /* 01 : S-video decoding */ +#define IFSEL_C 0x00 /* 00 : Composite video decoding */ + /* Y input video selection */ +#define YSEL_M0 0x00 /* 00 : Mux0 selected */ +#define YSEL_M1 0x04 /* 01 : Mux1 selected */ +#define YSEL_M2 0x08 /* 10 : Mux2 selected */ +#define YSEL_M3 0x10 /* 11 : Mux3 selected */ + +/* OPFORM */ +#define MODE 0x80 /* 0 : CCIR601 compatible YCrCb 4:2:2 format */ + /* 1 : ITU-R-656 compatible data sequence format */ +#define LEN 0x40 /* 0 : 8-bit YCrCb 4:2:2 output format */ + /* 1 : 16-bit YCrCb 4:2:2 output format.*/ +#define LLCMODE 0x20 /* 1 : LLC output mode. */ + /* 0 : free-run output mode */ +#define AINC 0x10 /* Serial interface auto-indexing control */ + /* 0 : auto-increment */ + /* 1 : non-auto */ +#define VSCTL 0x08 /* 1 : Vertical out ctrl by DVALID */ + /* 0 : Vertical out ctrl by HACTIVE and DVALID */ +#define OEN_TRI_SEL_MASK 0x07 +#define OEN_TRI_SEL_ALL_ON 0x00 /* Enable output for Rev0/Rev1 */ +#define OEN_TRI_SEL_ALL_OFF_r0 0x06 /* All tri-stated for Rev0 */ +#define OEN_TRI_SEL_ALL_OFF_r1 0x07 /* All tri-stated for Rev1 */ + +/* OUTCTR1 */ +#define VSP_LO 0x00 /* 0 : VS pin output polarity is active low */ +#define VSP_HI 0x80 /* 1 : VS pin output polarity is active high. */ + /* VS pin output control */ +#define VSSL_VSYNC 0x00 /* 0 : VSYNC */ +#define VSSL_VACT 0x10 /* 1 : VACT */ +#define VSSL_FIELD 0x20 /* 2 : FIELD */ +#define VSSL_VVALID 0x30 /* 3 : VVALID */ +#define VSSL_ZERO 0x70 /* 7 : 0 */ +#define HSP_LOW 0x00 /* 0 : HS pin output polarity is active low */ +#define HSP_HI 0x08 /* 1 : HS pin output polarity is active high.*/ + /* HS pin output control */ +#define HSSL_HACT 0x00 /* 0 : HACT */ +#define HSSL_HSYNC 0x01 /* 1 : HSYNC */ +#define HSSL_DVALID 0x02 /* 2 : DVALID */ +#define HSSL_HLOCK 0x03 /* 3 : HLOCK */ +#define HSSL_ASYNCW 0x04 /* 4 : ASYNCW */ +#define HSSL_ZERO 0x07 /* 7 : 0 */ + +/* ACNTL1 */ +#define SRESET 0x80 /* resets the device to its default state + * but all register content remain unchanged. + * This bit is self-resetting. + */ +#define ACNTL1_PDN_MASK 0x0e +#define CLK_PDN 0x08 /* system clock power down */ +#define Y_PDN 0x04 /* Luma ADC power down */ +#define C_PDN 0x02 /* Chroma ADC power down */ + +/* ACNTL2 */ +#define ACNTL2_PDN_MASK 0x40 +#define PLL_PDN 0x40 /* PLL power down */ + +/* VBICNTL */ + +/* RTSEL : control the real time signal output from the MPOUT pin */ +#define RTSEL_MASK 0x07 +#define RTSEL_VLOSS 0x00 /* 0000 = Video loss */ +#define RTSEL_HLOCK 0x01 /* 0001 = H-lock */ +#define RTSEL_SLOCK 0x02 /* 0010 = S-lock */ +#define RTSEL_VLOCK 0x03 /* 0011 = V-lock */ +#define RTSEL_MONO 0x04 /* 0100 = MONO */ +#define RTSEL_DET50 0x05 /* 0101 = DET50 */ +#define RTSEL_FIELD 0x06 /* 0110 = FIELD */ +#define RTSEL_RTCO 0x07 /* 0111 = RTCO ( Real Time Control ) */ + +/* HSYNC start and end are constant for now */ +#define HSYNC_START 0x0260 +#define HSYNC_END 0x0300 + +/* + * structure + */ + +struct regval_list { + unsigned char reg_num; + unsigned char value; +}; + +struct tw9910_scale_ctrl { + char *name; + unsigned short width; + unsigned short height; + u16 hscale; + u16 vscale; +}; + +struct tw9910_priv { + struct v4l2_subdev subdev; + struct v4l2_clk *clk; + struct tw9910_video_info *info; + const struct tw9910_scale_ctrl *scale; + v4l2_std_id norm; + u32 revision; +}; + +static const struct tw9910_scale_ctrl tw9910_ntsc_scales[] = { + { + .name = "NTSC SQ", + .width = 640, + .height = 480, + .hscale = 0x0100, + .vscale = 0x0100, + }, + { + .name = "NTSC CCIR601", + .width = 720, + .height = 480, + .hscale = 0x0100, + .vscale = 0x0100, + }, + { + .name = "NTSC SQ (CIF)", + .width = 320, + .height = 240, + .hscale = 0x0200, + .vscale = 0x0200, + }, + { + .name = "NTSC CCIR601 (CIF)", + .width = 360, + .height = 240, + .hscale = 0x0200, + .vscale = 0x0200, + }, + { + .name = "NTSC SQ (QCIF)", + .width = 160, + .height = 120, + .hscale = 0x0400, + .vscale = 0x0400, + }, + { + .name = "NTSC CCIR601 (QCIF)", + .width = 180, + .height = 120, + .hscale = 0x0400, + .vscale = 0x0400, + }, +}; + +static const struct tw9910_scale_ctrl tw9910_pal_scales[] = { + { + .name = "PAL SQ", + .width = 768, + .height = 576, + .hscale = 0x0100, + .vscale = 0x0100, + }, + { + .name = "PAL CCIR601", + .width = 720, + .height = 576, + .hscale = 0x0100, + .vscale = 0x0100, + }, + { + .name = "PAL SQ (CIF)", + .width = 384, + .height = 288, + .hscale = 0x0200, + .vscale = 0x0200, + }, + { + .name = "PAL CCIR601 (CIF)", + .width = 360, + .height = 288, + .hscale = 0x0200, + .vscale = 0x0200, + }, + { + .name = "PAL SQ (QCIF)", + .width = 192, + .height = 144, + .hscale = 0x0400, + .vscale = 0x0400, + }, + { + .name = "PAL CCIR601 (QCIF)", + .width = 180, + .height = 144, + .hscale = 0x0400, + .vscale = 0x0400, + }, +}; + +/* + * general function + */ +static struct tw9910_priv *to_tw9910(const struct i2c_client *client) +{ + return container_of(i2c_get_clientdata(client), struct tw9910_priv, + subdev); +} + +static int tw9910_mask_set(struct i2c_client *client, u8 command, + u8 mask, u8 set) +{ + s32 val = i2c_smbus_read_byte_data(client, command); + if (val < 0) + return val; + + val &= ~mask; + val |= set & mask; + + return i2c_smbus_write_byte_data(client, command, val); +} + +static int tw9910_set_scale(struct i2c_client *client, + const struct tw9910_scale_ctrl *scale) +{ + int ret; + + ret = i2c_smbus_write_byte_data(client, SCALE_HI, + (scale->vscale & 0x0F00) >> 4 | + (scale->hscale & 0x0F00) >> 8); + if (ret < 0) + return ret; + + ret = i2c_smbus_write_byte_data(client, HSCALE_LO, + scale->hscale & 0x00FF); + if (ret < 0) + return ret; + + ret = i2c_smbus_write_byte_data(client, VSCALE_LO, + scale->vscale & 0x00FF); + + return ret; +} + +static int tw9910_set_hsync(struct i2c_client *client) +{ + struct tw9910_priv *priv = to_tw9910(client); + int ret; + + /* bit 10 - 3 */ + ret = i2c_smbus_write_byte_data(client, HSBEGIN, + (HSYNC_START & 0x07F8) >> 3); + if (ret < 0) + return ret; + + /* bit 10 - 3 */ + ret = i2c_smbus_write_byte_data(client, HSEND, + (HSYNC_END & 0x07F8) >> 3); + if (ret < 0) + return ret; + + /* So far only revisions 0 and 1 have been seen */ + /* bit 2 - 0 */ + if (1 == priv->revision) + ret = tw9910_mask_set(client, HSLOWCTL, 0x77, + (HSYNC_START & 0x0007) << 4 | + (HSYNC_END & 0x0007)); + + return ret; +} + +static void tw9910_reset(struct i2c_client *client) +{ + tw9910_mask_set(client, ACNTL1, SRESET, SRESET); + msleep(1); +} + +static int tw9910_power(struct i2c_client *client, int enable) +{ + int ret; + u8 acntl1; + u8 acntl2; + + if (enable) { + acntl1 = 0; + acntl2 = 0; + } else { + acntl1 = CLK_PDN | Y_PDN | C_PDN; + acntl2 = PLL_PDN; + } + + ret = tw9910_mask_set(client, ACNTL1, ACNTL1_PDN_MASK, acntl1); + if (ret < 0) + return ret; + + return tw9910_mask_set(client, ACNTL2, ACNTL2_PDN_MASK, acntl2); +} + +static const struct tw9910_scale_ctrl *tw9910_select_norm(v4l2_std_id norm, + u32 width, u32 height) +{ + const struct tw9910_scale_ctrl *scale; + const struct tw9910_scale_ctrl *ret = NULL; + __u32 diff = 0xffffffff, tmp; + int size, i; + + if (norm & V4L2_STD_NTSC) { + scale = tw9910_ntsc_scales; + size = ARRAY_SIZE(tw9910_ntsc_scales); + } else if (norm & V4L2_STD_PAL) { + scale = tw9910_pal_scales; + size = ARRAY_SIZE(tw9910_pal_scales); + } else { + return NULL; + } + + for (i = 0; i < size; i++) { + tmp = abs(width - scale[i].width) + + abs(height - scale[i].height); + if (tmp < diff) { + diff = tmp; + ret = scale + i; + } + } + + return ret; +} + +/* + * subdevice operations + */ +static int tw9910_s_stream(struct v4l2_subdev *sd, int enable) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct tw9910_priv *priv = to_tw9910(client); + u8 val; + int ret; + + if (!enable) { + switch (priv->revision) { + case 0: + val = OEN_TRI_SEL_ALL_OFF_r0; + break; + case 1: + val = OEN_TRI_SEL_ALL_OFF_r1; + break; + default: + dev_err(&client->dev, "un-supported revision\n"); + return -EINVAL; + } + } else { + val = OEN_TRI_SEL_ALL_ON; + + if (!priv->scale) { + dev_err(&client->dev, "norm select error\n"); + return -EPERM; + } + + dev_dbg(&client->dev, "%s %dx%d\n", + priv->scale->name, + priv->scale->width, + priv->scale->height); + } + + ret = tw9910_mask_set(client, OPFORM, OEN_TRI_SEL_MASK, val); + if (ret < 0) + return ret; + + return tw9910_power(client, enable); +} + +static int tw9910_g_std(struct v4l2_subdev *sd, v4l2_std_id *norm) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct tw9910_priv *priv = to_tw9910(client); + + *norm = priv->norm; + + return 0; +} + +static int tw9910_s_std(struct v4l2_subdev *sd, v4l2_std_id norm) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct tw9910_priv *priv = to_tw9910(client); + const unsigned hact = 720; + const unsigned hdelay = 15; + unsigned vact; + unsigned vdelay; + int ret; + + if (!(norm & (V4L2_STD_NTSC | V4L2_STD_PAL))) + return -EINVAL; + + priv->norm = norm; + if (norm & V4L2_STD_525_60) { + vact = 240; + vdelay = 18; + ret = tw9910_mask_set(client, VVBI, 0x10, 0x10); + } else { + vact = 288; + vdelay = 24; + ret = tw9910_mask_set(client, VVBI, 0x10, 0x00); + } + if (!ret) + ret = i2c_smbus_write_byte_data(client, CROP_HI, + ((vdelay >> 2) & 0xc0) | + ((vact >> 4) & 0x30) | + ((hdelay >> 6) & 0x0c) | + ((hact >> 8) & 0x03)); + if (!ret) + ret = i2c_smbus_write_byte_data(client, VDELAY_LO, + vdelay & 0xff); + if (!ret) + ret = i2c_smbus_write_byte_data(client, VACTIVE_LO, + vact & 0xff); + + return ret; +} + +#ifdef CONFIG_VIDEO_ADV_DEBUG +static int tw9910_g_register(struct v4l2_subdev *sd, + struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + int ret; + + if (reg->reg > 0xff) + return -EINVAL; + + reg->size = 1; + ret = i2c_smbus_read_byte_data(client, reg->reg); + if (ret < 0) + return ret; + + /* + * ret = int + * reg->val = __u64 + */ + reg->val = (__u64)ret; + + return 0; +} + +static int tw9910_s_register(struct v4l2_subdev *sd, + const struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (reg->reg > 0xff || + reg->val > 0xff) + return -EINVAL; + + return i2c_smbus_write_byte_data(client, reg->reg, reg->val); +} +#endif + +static int tw9910_s_power(struct v4l2_subdev *sd, int on) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + struct tw9910_priv *priv = to_tw9910(client); + + return soc_camera_set_power(&client->dev, ssdd, priv->clk, on); +} + +static int tw9910_set_frame(struct v4l2_subdev *sd, u32 *width, u32 *height) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct tw9910_priv *priv = to_tw9910(client); + int ret = -EINVAL; + u8 val; + + /* + * select suitable norm + */ + priv->scale = tw9910_select_norm(priv->norm, *width, *height); + if (!priv->scale) + goto tw9910_set_fmt_error; + + /* + * reset hardware + */ + tw9910_reset(client); + + /* + * set bus width + */ + val = 0x00; + if (SOCAM_DATAWIDTH_16 == priv->info->buswidth) + val = LEN; + + ret = tw9910_mask_set(client, OPFORM, LEN, val); + if (ret < 0) + goto tw9910_set_fmt_error; + + /* + * select MPOUT behavior + */ + switch (priv->info->mpout) { + case TW9910_MPO_VLOSS: + val = RTSEL_VLOSS; break; + case TW9910_MPO_HLOCK: + val = RTSEL_HLOCK; break; + case TW9910_MPO_SLOCK: + val = RTSEL_SLOCK; break; + case TW9910_MPO_VLOCK: + val = RTSEL_VLOCK; break; + case TW9910_MPO_MONO: + val = RTSEL_MONO; break; + case TW9910_MPO_DET50: + val = RTSEL_DET50; break; + case TW9910_MPO_FIELD: + val = RTSEL_FIELD; break; + case TW9910_MPO_RTCO: + val = RTSEL_RTCO; break; + default: + val = 0; + } + + ret = tw9910_mask_set(client, VBICNTL, RTSEL_MASK, val); + if (ret < 0) + goto tw9910_set_fmt_error; + + /* + * set scale + */ + ret = tw9910_set_scale(client, priv->scale); + if (ret < 0) + goto tw9910_set_fmt_error; + + /* + * set hsync + */ + ret = tw9910_set_hsync(client); + if (ret < 0) + goto tw9910_set_fmt_error; + + *width = priv->scale->width; + *height = priv->scale->height; + + return ret; + +tw9910_set_fmt_error: + + tw9910_reset(client); + priv->scale = NULL; + + return ret; +} + +static int tw9910_get_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct tw9910_priv *priv = to_tw9910(client); + + if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) + return -EINVAL; + /* Only CROP, CROP_DEFAULT and CROP_BOUNDS are supported */ + if (sel->target > V4L2_SEL_TGT_CROP_BOUNDS) + return -EINVAL; + + sel->r.left = 0; + sel->r.top = 0; + if (priv->norm & V4L2_STD_NTSC) { + sel->r.width = 640; + sel->r.height = 480; + } else { + sel->r.width = 768; + sel->r.height = 576; + } + return 0; +} + +static int tw9910_get_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct v4l2_mbus_framefmt *mf = &format->format; + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct tw9910_priv *priv = to_tw9910(client); + + if (format->pad) + return -EINVAL; + + if (!priv->scale) { + priv->scale = tw9910_select_norm(priv->norm, 640, 480); + if (!priv->scale) + return -EINVAL; + } + + mf->width = priv->scale->width; + mf->height = priv->scale->height; + mf->code = MEDIA_BUS_FMT_UYVY8_2X8; + mf->colorspace = V4L2_COLORSPACE_SMPTE170M; + mf->field = V4L2_FIELD_INTERLACED_BT; + + return 0; +} + +static int tw9910_s_fmt(struct v4l2_subdev *sd, + struct v4l2_mbus_framefmt *mf) +{ + u32 width = mf->width, height = mf->height; + int ret; + + WARN_ON(mf->field != V4L2_FIELD_ANY && + mf->field != V4L2_FIELD_INTERLACED_BT); + + /* + * check color format + */ + if (mf->code != MEDIA_BUS_FMT_UYVY8_2X8) + return -EINVAL; + + mf->colorspace = V4L2_COLORSPACE_SMPTE170M; + + ret = tw9910_set_frame(sd, &width, &height); + if (!ret) { + mf->width = width; + mf->height = height; + } + return ret; +} + +static int tw9910_set_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct v4l2_mbus_framefmt *mf = &format->format; + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct tw9910_priv *priv = to_tw9910(client); + const struct tw9910_scale_ctrl *scale; + + if (format->pad) + return -EINVAL; + + if (V4L2_FIELD_ANY == mf->field) { + mf->field = V4L2_FIELD_INTERLACED_BT; + } else if (V4L2_FIELD_INTERLACED_BT != mf->field) { + dev_err(&client->dev, "Field type %d invalid.\n", mf->field); + return -EINVAL; + } + + mf->code = MEDIA_BUS_FMT_UYVY8_2X8; + mf->colorspace = V4L2_COLORSPACE_SMPTE170M; + + /* + * select suitable norm + */ + scale = tw9910_select_norm(priv->norm, mf->width, mf->height); + if (!scale) + return -EINVAL; + + mf->width = scale->width; + mf->height = scale->height; + + if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) + return tw9910_s_fmt(sd, mf); + cfg->try_fmt = *mf; + return 0; +} + +static int tw9910_video_probe(struct i2c_client *client) +{ + struct tw9910_priv *priv = to_tw9910(client); + s32 id; + int ret; + + /* + * tw9910 only use 8 or 16 bit bus width + */ + if (SOCAM_DATAWIDTH_16 != priv->info->buswidth && + SOCAM_DATAWIDTH_8 != priv->info->buswidth) { + dev_err(&client->dev, "bus width error\n"); + return -ENODEV; + } + + ret = tw9910_s_power(&priv->subdev, 1); + if (ret < 0) + return ret; + + /* + * check and show Product ID + * So far only revisions 0 and 1 have been seen + */ + id = i2c_smbus_read_byte_data(client, ID); + priv->revision = GET_REV(id); + id = GET_ID(id); + + if (0x0B != id || + 0x01 < priv->revision) { + dev_err(&client->dev, + "Product ID error %x:%x\n", + id, priv->revision); + ret = -ENODEV; + goto done; + } + + dev_info(&client->dev, + "tw9910 Product ID %0x:%0x\n", id, priv->revision); + + priv->norm = V4L2_STD_NTSC; + priv->scale = &tw9910_ntsc_scales[0]; + +done: + tw9910_s_power(&priv->subdev, 0); + return ret; +} + +static const struct v4l2_subdev_core_ops tw9910_subdev_core_ops = { +#ifdef CONFIG_VIDEO_ADV_DEBUG + .g_register = tw9910_g_register, + .s_register = tw9910_s_register, +#endif + .s_power = tw9910_s_power, +}; + +static int tw9910_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_mbus_code_enum *code) +{ + if (code->pad || code->index) + return -EINVAL; + + code->code = MEDIA_BUS_FMT_UYVY8_2X8; + return 0; +} + +static int tw9910_g_mbus_config(struct v4l2_subdev *sd, + struct v4l2_mbus_config *cfg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + + cfg->flags = V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_MASTER | + V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_LOW | + V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_LOW | + V4L2_MBUS_DATA_ACTIVE_HIGH; + cfg->type = V4L2_MBUS_PARALLEL; + cfg->flags = soc_camera_apply_board_flags(ssdd, cfg); + + return 0; +} + +static int tw9910_s_mbus_config(struct v4l2_subdev *sd, + const struct v4l2_mbus_config *cfg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + u8 val = VSSL_VVALID | HSSL_DVALID; + unsigned long flags = soc_camera_apply_board_flags(ssdd, cfg); + + /* + * set OUTCTR1 + * + * We use VVALID and DVALID signals to control VSYNC and HSYNC + * outputs, in this mode their polarity is inverted. + */ + if (flags & V4L2_MBUS_HSYNC_ACTIVE_LOW) + val |= HSP_HI; + + if (flags & V4L2_MBUS_VSYNC_ACTIVE_LOW) + val |= VSP_HI; + + return i2c_smbus_write_byte_data(client, OUTCTR1, val); +} + +static int tw9910_g_tvnorms(struct v4l2_subdev *sd, v4l2_std_id *norm) +{ + *norm = V4L2_STD_NTSC | V4L2_STD_PAL; + return 0; +} + +static const struct v4l2_subdev_video_ops tw9910_subdev_video_ops = { + .s_std = tw9910_s_std, + .g_std = tw9910_g_std, + .s_stream = tw9910_s_stream, + .g_mbus_config = tw9910_g_mbus_config, + .s_mbus_config = tw9910_s_mbus_config, + .g_tvnorms = tw9910_g_tvnorms, +}; + +static const struct v4l2_subdev_pad_ops tw9910_subdev_pad_ops = { + .enum_mbus_code = tw9910_enum_mbus_code, + .get_selection = tw9910_get_selection, + .get_fmt = tw9910_get_fmt, + .set_fmt = tw9910_set_fmt, +}; + +static const struct v4l2_subdev_ops tw9910_subdev_ops = { + .core = &tw9910_subdev_core_ops, + .video = &tw9910_subdev_video_ops, + .pad = &tw9910_subdev_pad_ops, +}; + +/* + * i2c_driver function + */ + +static int tw9910_probe(struct i2c_client *client, + const struct i2c_device_id *did) + +{ + struct tw9910_priv *priv; + struct tw9910_video_info *info; + struct i2c_adapter *adapter = + to_i2c_adapter(client->dev.parent); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + int ret; + + if (!ssdd || !ssdd->drv_priv) { + dev_err(&client->dev, "TW9910: missing platform data!\n"); + return -EINVAL; + } + + info = ssdd->drv_priv; + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { + dev_err(&client->dev, + "I2C-Adapter doesn't support I2C_FUNC_SMBUS_BYTE_DATA\n"); + return -EIO; + } + + priv = devm_kzalloc(&client->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->info = info; + + v4l2_i2c_subdev_init(&priv->subdev, client, &tw9910_subdev_ops); + + priv->clk = v4l2_clk_get(&client->dev, "mclk"); + if (IS_ERR(priv->clk)) + return PTR_ERR(priv->clk); + + ret = tw9910_video_probe(client); + if (ret < 0) + v4l2_clk_put(priv->clk); + + return ret; +} + +static int tw9910_remove(struct i2c_client *client) +{ + struct tw9910_priv *priv = to_tw9910(client); + v4l2_clk_put(priv->clk); + return 0; +} + +static const struct i2c_device_id tw9910_id[] = { + { "tw9910", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, tw9910_id); + +static struct i2c_driver tw9910_i2c_driver = { + .driver = { + .name = "tw9910", + }, + .probe = tw9910_probe, + .remove = tw9910_remove, + .id_table = tw9910_id, +}; + +module_i2c_driver(tw9910_i2c_driver); + +MODULE_DESCRIPTION("SoC Camera driver for tw9910"); +MODULE_AUTHOR("Kuninori Morimoto"); +MODULE_LICENSE("GPL v2"); |