diff options
Diffstat (limited to 'drivers/media/usb/gspca/spca561.c')
| -rw-r--r-- | drivers/media/usb/gspca/spca561.c | 911 |
1 files changed, 911 insertions, 0 deletions
diff --git a/drivers/media/usb/gspca/spca561.c b/drivers/media/usb/gspca/spca561.c new file mode 100644 index 000000000..431527ed6 --- /dev/null +++ b/drivers/media/usb/gspca/spca561.c @@ -0,0 +1,911 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Sunplus spca561 subdriver + * + * Copyright (C) 2004 Michel Xhaard mxhaard@magic.fr + * + * V4L2 by Jean-Francois Moine <http://moinejf.free.fr> + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#define MODULE_NAME "spca561" + +#include <linux/input.h> +#include "gspca.h" + +MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>"); +MODULE_DESCRIPTION("GSPCA/SPCA561 USB Camera Driver"); +MODULE_LICENSE("GPL"); + +#define EXPOSURE_MAX (2047 + 325) + +/* specific webcam descriptor */ +struct sd { + struct gspca_dev gspca_dev; /* !! must be the first item */ + + struct { /* hue/contrast control cluster */ + struct v4l2_ctrl *contrast; + struct v4l2_ctrl *hue; + }; + struct v4l2_ctrl *autogain; + +#define EXPO12A_DEF 3 + __u8 expo12a; /* expo/gain? for rev 12a */ + + __u8 chip_revision; +#define Rev012A 0 +#define Rev072A 1 + + signed char ag_cnt; +#define AG_CNT_START 13 +}; + +static const struct v4l2_pix_format sif_012a_mode[] = { + {160, 120, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, + .bytesperline = 160, + .sizeimage = 160 * 120, + .colorspace = V4L2_COLORSPACE_SRGB, + .priv = 3}, + {176, 144, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, + .bytesperline = 176, + .sizeimage = 176 * 144, + .colorspace = V4L2_COLORSPACE_SRGB, + .priv = 2}, + {320, 240, V4L2_PIX_FMT_SPCA561, V4L2_FIELD_NONE, + .bytesperline = 320, + .sizeimage = 320 * 240 * 4 / 8, + .colorspace = V4L2_COLORSPACE_SRGB, + .priv = 1}, + {352, 288, V4L2_PIX_FMT_SPCA561, V4L2_FIELD_NONE, + .bytesperline = 352, + .sizeimage = 352 * 288 * 4 / 8, + .colorspace = V4L2_COLORSPACE_SRGB, + .priv = 0}, +}; + +static const struct v4l2_pix_format sif_072a_mode[] = { + {160, 120, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, + .bytesperline = 160, + .sizeimage = 160 * 120, + .colorspace = V4L2_COLORSPACE_SRGB, + .priv = 3}, + {176, 144, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, + .bytesperline = 176, + .sizeimage = 176 * 144, + .colorspace = V4L2_COLORSPACE_SRGB, + .priv = 2}, + {320, 240, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, + .bytesperline = 320, + .sizeimage = 320 * 240, + .colorspace = V4L2_COLORSPACE_SRGB, + .priv = 1}, + {352, 288, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE, + .bytesperline = 352, + .sizeimage = 352 * 288, + .colorspace = V4L2_COLORSPACE_SRGB, + .priv = 0}, +}; + +/* + * Initialization data + * I'm not very sure how to split initialization from open data + * chunks. For now, we'll consider everything as initialization + */ +/* Frame packet header offsets for the spca561 */ +#define SPCA561_OFFSET_SNAP 1 +#define SPCA561_OFFSET_TYPE 2 +#define SPCA561_OFFSET_COMPRESS 3 +#define SPCA561_OFFSET_FRAMSEQ 4 +#define SPCA561_OFFSET_GPIO 5 +#define SPCA561_OFFSET_USBBUFF 6 +#define SPCA561_OFFSET_WIN2GRAVE 7 +#define SPCA561_OFFSET_WIN2RAVE 8 +#define SPCA561_OFFSET_WIN2BAVE 9 +#define SPCA561_OFFSET_WIN2GBAVE 10 +#define SPCA561_OFFSET_WIN1GRAVE 11 +#define SPCA561_OFFSET_WIN1RAVE 12 +#define SPCA561_OFFSET_WIN1BAVE 13 +#define SPCA561_OFFSET_WIN1GBAVE 14 +#define SPCA561_OFFSET_FREQ 15 +#define SPCA561_OFFSET_VSYNC 16 +#define SPCA561_INDEX_I2C_BASE 0x8800 +#define SPCA561_SNAPBIT 0x20 +#define SPCA561_SNAPCTRL 0x40 + +static const u16 rev72a_reset[][2] = { + {0x0000, 0x8114}, /* Software GPIO output data */ + {0x0001, 0x8114}, /* Software GPIO output data */ + {0x0000, 0x8112}, /* Some kind of reset */ + {} +}; +static const __u16 rev72a_init_data1[][2] = { + {0x0003, 0x8701}, /* PCLK clock delay adjustment */ + {0x0001, 0x8703}, /* HSYNC from cmos inverted */ + {0x0011, 0x8118}, /* Enable and conf sensor */ + {0x0001, 0x8118}, /* Conf sensor */ + {0x0092, 0x8804}, /* I know nothing about these */ + {0x0010, 0x8802}, /* 0x88xx registers, so I won't */ + {} +}; +static const u16 rev72a_init_sensor1[][2] = { + {0x0001, 0x000d}, + {0x0002, 0x0018}, + {0x0004, 0x0165}, + {0x0005, 0x0021}, + {0x0007, 0x00aa}, + {0x0020, 0x1504}, + {0x0039, 0x0002}, + {0x0035, 0x0010}, + {0x0009, 0x1049}, + {0x0028, 0x000b}, + {0x003b, 0x000f}, + {0x003c, 0x0000}, + {} +}; +static const __u16 rev72a_init_data2[][2] = { + {0x0018, 0x8601}, /* Pixel/line selection for color separation */ + {0x0000, 0x8602}, /* Optical black level for user setting */ + {0x0060, 0x8604}, /* Optical black horizontal offset */ + {0x0002, 0x8605}, /* Optical black vertical offset */ + {0x0000, 0x8603}, /* Non-automatic optical black level */ + {0x0002, 0x865b}, /* Horizontal offset for valid pixels */ + {0x0000, 0x865f}, /* Vertical valid pixels window (x2) */ + {0x00b0, 0x865d}, /* Horizontal valid pixels window (x2) */ + {0x0090, 0x865e}, /* Vertical valid lines window (x2) */ + {0x00e0, 0x8406}, /* Memory buffer threshold */ + {0x0000, 0x8660}, /* Compensation memory stuff */ + {0x0002, 0x8201}, /* Output address for r/w serial EEPROM */ + {0x0008, 0x8200}, /* Clear valid bit for serial EEPROM */ + {0x0001, 0x8200}, /* OprMode to be executed by hardware */ +/* from ms-win */ + {0x0000, 0x8611}, /* R offset for white balance */ + {0x00fd, 0x8612}, /* Gr offset for white balance */ + {0x0003, 0x8613}, /* B offset for white balance */ + {0x0000, 0x8614}, /* Gb offset for white balance */ +/* from ms-win */ + {0x0035, 0x8651}, /* R gain for white balance */ + {0x0040, 0x8652}, /* Gr gain for white balance */ + {0x005f, 0x8653}, /* B gain for white balance */ + {0x0040, 0x8654}, /* Gb gain for white balance */ + {0x0002, 0x8502}, /* Maximum average bit rate stuff */ + {0x0011, 0x8802}, + + {0x0087, 0x8700}, /* Set master clock (96Mhz????) */ + {0x0081, 0x8702}, /* Master clock output enable */ + + {0x0000, 0x8500}, /* Set image type (352x288 no compression) */ + /* Originally was 0x0010 (352x288 compression) */ + + {0x0002, 0x865b}, /* Horizontal offset for valid pixels */ + {0x0003, 0x865c}, /* Vertical offset for valid lines */ + {} +}; +static const u16 rev72a_init_sensor2[][2] = { + {0x0003, 0x0121}, + {0x0004, 0x0165}, + {0x0005, 0x002f}, /* blanking control column */ + {0x0006, 0x0000}, /* blanking mode row*/ + {0x000a, 0x0002}, + {0x0009, 0x1061}, /* setexposure times && pixel clock + * 0001 0 | 000 0110 0001 */ + {0x0035, 0x0014}, + {} +}; + +/******************** QC Express etch2 stuff ********************/ +static const __u16 Pb100_1map8300[][2] = { + /* reg, value */ + {0x8320, 0x3304}, + + {0x8303, 0x0125}, /* image area */ + {0x8304, 0x0169}, + {0x8328, 0x000b}, + {0x833c, 0x0001}, /*fixme: win:07*/ + + {0x832f, 0x1904}, /*fixme: was 0419*/ + {0x8307, 0x00aa}, + {0x8301, 0x0003}, + {0x8302, 0x000e}, + {} +}; +static const __u16 Pb100_2map8300[][2] = { + /* reg, value */ + {0x8339, 0x0000}, + {0x8307, 0x00aa}, + {} +}; + +static const __u16 spca561_161rev12A_data1[][2] = { + {0x29, 0x8118}, /* Control register (various enable bits) */ + {0x08, 0x8114}, /* GPIO: Led off */ + {0x0e, 0x8112}, /* 0x0e stream off 0x3e stream on */ + {0x00, 0x8102}, /* white balance - new */ + {0x92, 0x8804}, + {0x04, 0x8802}, /* windows uses 08 */ + {} +}; +static const __u16 spca561_161rev12A_data2[][2] = { + {0x21, 0x8118}, + {0x10, 0x8500}, + {0x07, 0x8601}, + {0x07, 0x8602}, + {0x04, 0x8501}, + + {0x07, 0x8201}, /* windows uses 02 */ + {0x08, 0x8200}, + {0x01, 0x8200}, + + {0x90, 0x8604}, + {0x00, 0x8605}, + {0xb0, 0x8603}, + + /* sensor gains */ + {0x07, 0x8601}, /* white balance - new */ + {0x07, 0x8602}, /* white balance - new */ + {0x00, 0x8610}, /* *red */ + {0x00, 0x8611}, /* 3f *green */ + {0x00, 0x8612}, /* green *blue */ + {0x00, 0x8613}, /* blue *green */ + {0x43, 0x8614}, /* green *red - white balance - was 0x35 */ + {0x40, 0x8615}, /* 40 *green - white balance - was 0x35 */ + {0x71, 0x8616}, /* 7a *blue - white balance - was 0x35 */ + {0x40, 0x8617}, /* 40 *green - white balance - was 0x35 */ + + {0x0c, 0x8620}, /* 0c */ + {0xc8, 0x8631}, /* c8 */ + {0xc8, 0x8634}, /* c8 */ + {0x23, 0x8635}, /* 23 */ + {0x1f, 0x8636}, /* 1f */ + {0xdd, 0x8637}, /* dd */ + {0xe1, 0x8638}, /* e1 */ + {0x1d, 0x8639}, /* 1d */ + {0x21, 0x863a}, /* 21 */ + {0xe3, 0x863b}, /* e3 */ + {0xdf, 0x863c}, /* df */ + {0xf0, 0x8505}, + {0x32, 0x850a}, +/* {0x99, 0x8700}, * - white balance - new (removed) */ + /* HDG we used to do this in stop0, making the init state and the state + after a start / stop different, so do this here instead. */ + {0x29, 0x8118}, + {} +}; + +static void reg_w_val(struct gspca_dev *gspca_dev, __u16 index, __u8 value) +{ + int ret; + struct usb_device *dev = gspca_dev->dev; + + ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), + 0, /* request */ + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, index, NULL, 0, 500); + gspca_dbg(gspca_dev, D_USBO, "reg write: 0x%02x:0x%02x\n", + index, value); + if (ret < 0) + pr_err("reg write: error %d\n", ret); +} + +static void write_vector(struct gspca_dev *gspca_dev, + const __u16 data[][2]) +{ + int i; + + i = 0; + while (data[i][1] != 0) { + reg_w_val(gspca_dev, data[i][1], data[i][0]); + i++; + } +} + +/* read 'len' bytes to gspca_dev->usb_buf */ +static void reg_r(struct gspca_dev *gspca_dev, + __u16 index, __u16 length) +{ + usb_control_msg(gspca_dev->dev, + usb_rcvctrlpipe(gspca_dev->dev, 0), + 0, /* request */ + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0, /* value */ + index, gspca_dev->usb_buf, length, 500); +} + +/* write 'len' bytes from gspca_dev->usb_buf */ +static void reg_w_buf(struct gspca_dev *gspca_dev, + __u16 index, __u16 len) +{ + usb_control_msg(gspca_dev->dev, + usb_sndctrlpipe(gspca_dev->dev, 0), + 0, /* request */ + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0, /* value */ + index, gspca_dev->usb_buf, len, 500); +} + +static void i2c_write(struct gspca_dev *gspca_dev, __u16 value, __u16 reg) +{ + int retry = 60; + + reg_w_val(gspca_dev, 0x8801, reg); + reg_w_val(gspca_dev, 0x8805, value); + reg_w_val(gspca_dev, 0x8800, value >> 8); + do { + reg_r(gspca_dev, 0x8803, 1); + if (!gspca_dev->usb_buf[0]) + return; + msleep(10); + } while (--retry); +} + +static int i2c_read(struct gspca_dev *gspca_dev, __u16 reg, __u8 mode) +{ + int retry = 60; + __u8 value; + + reg_w_val(gspca_dev, 0x8804, 0x92); + reg_w_val(gspca_dev, 0x8801, reg); + reg_w_val(gspca_dev, 0x8802, mode | 0x01); + do { + reg_r(gspca_dev, 0x8803, 1); + if (!gspca_dev->usb_buf[0]) { + reg_r(gspca_dev, 0x8800, 1); + value = gspca_dev->usb_buf[0]; + reg_r(gspca_dev, 0x8805, 1); + return ((int) value << 8) | gspca_dev->usb_buf[0]; + } + msleep(10); + } while (--retry); + return -1; +} + +static void sensor_mapwrite(struct gspca_dev *gspca_dev, + const __u16 (*sensormap)[2]) +{ + while ((*sensormap)[0]) { + gspca_dev->usb_buf[0] = (*sensormap)[1]; + gspca_dev->usb_buf[1] = (*sensormap)[1] >> 8; + reg_w_buf(gspca_dev, (*sensormap)[0], 2); + sensormap++; + } +} + +static void write_sensor_72a(struct gspca_dev *gspca_dev, + const __u16 (*sensor)[2]) +{ + while ((*sensor)[0]) { + i2c_write(gspca_dev, (*sensor)[1], (*sensor)[0]); + sensor++; + } +} + +static void init_161rev12A(struct gspca_dev *gspca_dev) +{ + write_vector(gspca_dev, spca561_161rev12A_data1); + sensor_mapwrite(gspca_dev, Pb100_1map8300); +/*fixme: should be in sd_start*/ + write_vector(gspca_dev, spca561_161rev12A_data2); + sensor_mapwrite(gspca_dev, Pb100_2map8300); +} + +/* this function is called at probe time */ +static int sd_config(struct gspca_dev *gspca_dev, + const struct usb_device_id *id) +{ + struct sd *sd = (struct sd *) gspca_dev; + struct cam *cam; + __u16 vendor, product; + __u8 data1, data2; + + /* Read frm global register the USB product and vendor IDs, just to + * prove that we can communicate with the device. This works, which + * confirms at we are communicating properly and that the device + * is a 561. */ + reg_r(gspca_dev, 0x8104, 1); + data1 = gspca_dev->usb_buf[0]; + reg_r(gspca_dev, 0x8105, 1); + data2 = gspca_dev->usb_buf[0]; + vendor = (data2 << 8) | data1; + reg_r(gspca_dev, 0x8106, 1); + data1 = gspca_dev->usb_buf[0]; + reg_r(gspca_dev, 0x8107, 1); + data2 = gspca_dev->usb_buf[0]; + product = (data2 << 8) | data1; + if (vendor != id->idVendor || product != id->idProduct) { + gspca_dbg(gspca_dev, D_PROBE, "Bad vendor / product from device\n"); + return -EINVAL; + } + + cam = &gspca_dev->cam; + cam->needs_full_bandwidth = 1; + + sd->chip_revision = id->driver_info; + if (sd->chip_revision == Rev012A) { + cam->cam_mode = sif_012a_mode; + cam->nmodes = ARRAY_SIZE(sif_012a_mode); + } else { + cam->cam_mode = sif_072a_mode; + cam->nmodes = ARRAY_SIZE(sif_072a_mode); + } + sd->expo12a = EXPO12A_DEF; + return 0; +} + +/* this function is called at probe and resume time */ +static int sd_init_12a(struct gspca_dev *gspca_dev) +{ + gspca_dbg(gspca_dev, D_STREAM, "Chip revision: 012a\n"); + init_161rev12A(gspca_dev); + return 0; +} +static int sd_init_72a(struct gspca_dev *gspca_dev) +{ + gspca_dbg(gspca_dev, D_STREAM, "Chip revision: 072a\n"); + write_vector(gspca_dev, rev72a_reset); + msleep(200); + write_vector(gspca_dev, rev72a_init_data1); + write_sensor_72a(gspca_dev, rev72a_init_sensor1); + write_vector(gspca_dev, rev72a_init_data2); + write_sensor_72a(gspca_dev, rev72a_init_sensor2); + reg_w_val(gspca_dev, 0x8112, 0x30); + return 0; +} + +static void setbrightness(struct gspca_dev *gspca_dev, s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + __u16 reg; + + if (sd->chip_revision == Rev012A) + reg = 0x8610; + else + reg = 0x8611; + + reg_w_val(gspca_dev, reg + 0, val); /* R */ + reg_w_val(gspca_dev, reg + 1, val); /* Gr */ + reg_w_val(gspca_dev, reg + 2, val); /* B */ + reg_w_val(gspca_dev, reg + 3, val); /* Gb */ +} + +static void setwhite(struct gspca_dev *gspca_dev, s32 white, s32 contrast) +{ + struct sd *sd = (struct sd *) gspca_dev; + __u8 blue, red; + __u16 reg; + + /* try to emulate MS-win as possible */ + red = 0x20 + white * 3 / 8; + blue = 0x90 - white * 5 / 8; + if (sd->chip_revision == Rev012A) { + reg = 0x8614; + } else { + reg = 0x8651; + red += contrast - 0x20; + blue += contrast - 0x20; + reg_w_val(gspca_dev, 0x8652, contrast + 0x20); /* Gr */ + reg_w_val(gspca_dev, 0x8654, contrast + 0x20); /* Gb */ + } + reg_w_val(gspca_dev, reg, red); + reg_w_val(gspca_dev, reg + 2, blue); +} + +/* rev 12a only */ +static void setexposure(struct gspca_dev *gspca_dev, s32 val) +{ + int i, expo = 0; + + /* Register 0x8309 controls exposure for the spca561, + the basic exposure setting goes from 1-2047, where 1 is completely + dark and 2047 is very bright. It not only influences exposure but + also the framerate (to allow for longer exposure) from 1 - 300 it + only raises the exposure time then from 300 - 600 it halves the + framerate to be able to further raise the exposure time and for every + 300 more it halves the framerate again. This allows for a maximum + exposure time of circa 0.2 - 0.25 seconds (30 / (2000/3000) fps). + Sometimes this is not enough, the 1-2047 uses bits 0-10, bits 11-12 + configure a divider for the base framerate which us used at the + exposure setting of 1-300. These bits configure the base framerate + according to the following formula: fps = 60 / (value + 2) */ + + /* We choose to use the high bits setting the fixed framerate divisor + asap, as setting high basic exposure setting without the fixed + divider in combination with high gains makes the cam stop */ + static const int table[] = { 0, 450, 550, 625, EXPOSURE_MAX }; + + for (i = 0; i < ARRAY_SIZE(table) - 1; i++) { + if (val <= table[i + 1]) { + expo = val - table[i]; + if (i) + expo += 300; + expo |= i << 11; + break; + } + } + + gspca_dev->usb_buf[0] = expo; + gspca_dev->usb_buf[1] = expo >> 8; + reg_w_buf(gspca_dev, 0x8309, 2); +} + +/* rev 12a only */ +static void setgain(struct gspca_dev *gspca_dev, s32 val) +{ + /* gain reg low 6 bits 0-63 gain, bit 6 and 7, both double the + sensitivity when set, so 31 + one of them set == 63, and 15 + with both of them set == 63 */ + if (val < 64) + gspca_dev->usb_buf[0] = val; + else if (val < 128) + gspca_dev->usb_buf[0] = (val / 2) | 0x40; + else + gspca_dev->usb_buf[0] = (val / 4) | 0xc0; + + gspca_dev->usb_buf[1] = 0; + reg_w_buf(gspca_dev, 0x8335, 2); +} + +static void setautogain(struct gspca_dev *gspca_dev, s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + if (val) + sd->ag_cnt = AG_CNT_START; + else + sd->ag_cnt = -1; +} + +static int sd_start_12a(struct gspca_dev *gspca_dev) +{ + int mode; + static const __u8 Reg8391[8] = + {0x92, 0x30, 0x20, 0x00, 0x0c, 0x00, 0x00, 0x00}; + + mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv; + if (mode <= 1) { + /* Use compression on 320x240 and above */ + reg_w_val(gspca_dev, 0x8500, 0x10 | mode); + } else { + /* I couldn't get the compression to work below 320x240 + * Fortunately at these resolutions the bandwidth + * is sufficient to push raw frames at ~20fps */ + reg_w_val(gspca_dev, 0x8500, mode); + } /* -- qq@kuku.eu.org */ + + gspca_dev->usb_buf[0] = 0xaa; + gspca_dev->usb_buf[1] = 0x00; + reg_w_buf(gspca_dev, 0x8307, 2); + /* clock - lower 0x8X values lead to fps > 30 */ + reg_w_val(gspca_dev, 0x8700, 0x8a); + /* 0x8f 0x85 0x27 clock */ + reg_w_val(gspca_dev, 0x8112, 0x1e | 0x20); + reg_w_val(gspca_dev, 0x850b, 0x03); + memcpy(gspca_dev->usb_buf, Reg8391, 8); + reg_w_buf(gspca_dev, 0x8391, 8); + reg_w_buf(gspca_dev, 0x8390, 8); + + /* Led ON (bit 3 -> 0 */ + reg_w_val(gspca_dev, 0x8114, 0x00); + return 0; +} +static int sd_start_72a(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + int Clck; + int mode; + + write_vector(gspca_dev, rev72a_reset); + msleep(200); + write_vector(gspca_dev, rev72a_init_data1); + write_sensor_72a(gspca_dev, rev72a_init_sensor1); + + mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv; + switch (mode) { + default: + case 0: + Clck = 0x27; /* ms-win 0x87 */ + break; + case 1: + Clck = 0x25; + break; + case 2: + Clck = 0x22; + break; + case 3: + Clck = 0x21; + break; + } + reg_w_val(gspca_dev, 0x8700, Clck); /* 0x27 clock */ + reg_w_val(gspca_dev, 0x8702, 0x81); + reg_w_val(gspca_dev, 0x8500, mode); /* mode */ + write_sensor_72a(gspca_dev, rev72a_init_sensor2); + setwhite(gspca_dev, v4l2_ctrl_g_ctrl(sd->hue), + v4l2_ctrl_g_ctrl(sd->contrast)); +/* setbrightness(gspca_dev); * fixme: bad values */ + setautogain(gspca_dev, v4l2_ctrl_g_ctrl(sd->autogain)); + reg_w_val(gspca_dev, 0x8112, 0x10 | 0x20); + return 0; +} + +static void sd_stopN(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + + if (sd->chip_revision == Rev012A) { + reg_w_val(gspca_dev, 0x8112, 0x0e); + /* Led Off (bit 3 -> 1 */ + reg_w_val(gspca_dev, 0x8114, 0x08); + } else { + reg_w_val(gspca_dev, 0x8112, 0x20); +/* reg_w_val(gspca_dev, 0x8102, 0x00); ?? */ + } +} + +static void do_autogain(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + int expotimes; + int pixelclk; + int gainG; + __u8 R, Gr, Gb, B; + int y; + __u8 luma_mean = 110; + __u8 luma_delta = 20; + __u8 spring = 4; + + if (sd->ag_cnt < 0) + return; + if (--sd->ag_cnt >= 0) + return; + sd->ag_cnt = AG_CNT_START; + + switch (sd->chip_revision) { + case Rev072A: + reg_r(gspca_dev, 0x8621, 1); + Gr = gspca_dev->usb_buf[0]; + reg_r(gspca_dev, 0x8622, 1); + R = gspca_dev->usb_buf[0]; + reg_r(gspca_dev, 0x8623, 1); + B = gspca_dev->usb_buf[0]; + reg_r(gspca_dev, 0x8624, 1); + Gb = gspca_dev->usb_buf[0]; + y = (77 * R + 75 * (Gr + Gb) + 29 * B) >> 8; + /* u= (128*B-(43*(Gr+Gb+R))) >> 8; */ + /* v= (128*R-(53*(Gr+Gb))-21*B) >> 8; */ + + if (y < luma_mean - luma_delta || + y > luma_mean + luma_delta) { + expotimes = i2c_read(gspca_dev, 0x09, 0x10); + pixelclk = 0x0800; + expotimes = expotimes & 0x07ff; + gainG = i2c_read(gspca_dev, 0x35, 0x10); + + expotimes += (luma_mean - y) >> spring; + gainG += (luma_mean - y) / 50; + + if (gainG > 0x3f) + gainG = 0x3f; + else if (gainG < 3) + gainG = 3; + i2c_write(gspca_dev, gainG, 0x35); + + if (expotimes > 0x0256) + expotimes = 0x0256; + else if (expotimes < 3) + expotimes = 3; + i2c_write(gspca_dev, expotimes | pixelclk, 0x09); + } + break; + } +} + +static void sd_pkt_scan(struct gspca_dev *gspca_dev, + u8 *data, /* isoc packet */ + int len) /* iso packet length */ +{ + struct sd *sd = (struct sd *) gspca_dev; + + len--; + switch (*data++) { /* sequence number */ + case 0: /* start of frame */ + gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0); + + /* This should never happen */ + if (len < 2) { + gspca_err(gspca_dev, "Short SOF packet, ignoring\n\n\n\n\n"); + gspca_dev->last_packet_type = DISCARD_PACKET; + return; + } + +#if IS_ENABLED(CONFIG_INPUT) + if (data[0] & 0x20) { + input_report_key(gspca_dev->input_dev, KEY_CAMERA, 1); + input_sync(gspca_dev->input_dev); + input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0); + input_sync(gspca_dev->input_dev); + } +#endif + + if (data[1] & 0x10) { + /* compressed bayer */ + gspca_frame_add(gspca_dev, FIRST_PACKET, data, len); + } else { + /* raw bayer (with a header, which we skip) */ + if (sd->chip_revision == Rev012A) { + data += 20; + len -= 20; + } else { + data += 16; + len -= 16; + } + gspca_frame_add(gspca_dev, FIRST_PACKET, data, len); + } + return; + case 0xff: /* drop (empty mpackets) */ + return; + } + gspca_frame_add(gspca_dev, INTER_PACKET, data, len); +} + +static int sd_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct gspca_dev *gspca_dev = + container_of(ctrl->handler, struct gspca_dev, ctrl_handler); + struct sd *sd = (struct sd *)gspca_dev; + + gspca_dev->usb_err = 0; + + if (!gspca_dev->streaming) + return 0; + + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + setbrightness(gspca_dev, ctrl->val); + break; + case V4L2_CID_CONTRAST: + /* hue/contrast control cluster for 72a */ + setwhite(gspca_dev, sd->hue->val, ctrl->val); + break; + case V4L2_CID_HUE: + /* just plain hue control for 12a */ + setwhite(gspca_dev, ctrl->val, 0); + break; + case V4L2_CID_EXPOSURE: + setexposure(gspca_dev, ctrl->val); + break; + case V4L2_CID_GAIN: + setgain(gspca_dev, ctrl->val); + break; + case V4L2_CID_AUTOGAIN: + setautogain(gspca_dev, ctrl->val); + break; + } + return gspca_dev->usb_err; +} + +static const struct v4l2_ctrl_ops sd_ctrl_ops = { + .s_ctrl = sd_s_ctrl, +}; + +static int sd_init_controls_12a(struct gspca_dev *gspca_dev) +{ + struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler; + + gspca_dev->vdev.ctrl_handler = hdl; + v4l2_ctrl_handler_init(hdl, 3); + v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_HUE, 1, 0x7f, 1, 0x40); + v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_BRIGHTNESS, -128, 127, 1, 0); + v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_EXPOSURE, 1, EXPOSURE_MAX, 1, 700); + v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_GAIN, 0, 255, 1, 63); + + if (hdl->error) { + pr_err("Could not initialize controls\n"); + return hdl->error; + } + return 0; +} + +static int sd_init_controls_72a(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *)gspca_dev; + struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler; + + gspca_dev->vdev.ctrl_handler = hdl; + v4l2_ctrl_handler_init(hdl, 4); + sd->contrast = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_CONTRAST, 0, 0x3f, 1, 0x20); + sd->hue = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_HUE, 1, 0x7f, 1, 0x40); + v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_BRIGHTNESS, 0, 0x3f, 1, 0x20); + sd->autogain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_AUTOGAIN, 0, 1, 1, 1); + + if (hdl->error) { + pr_err("Could not initialize controls\n"); + return hdl->error; + } + v4l2_ctrl_cluster(2, &sd->contrast); + return 0; +} + +/* sub-driver description */ +static const struct sd_desc sd_desc_12a = { + .name = MODULE_NAME, + .init_controls = sd_init_controls_12a, + .config = sd_config, + .init = sd_init_12a, + .start = sd_start_12a, + .stopN = sd_stopN, + .pkt_scan = sd_pkt_scan, +#if IS_ENABLED(CONFIG_INPUT) + .other_input = 1, +#endif +}; +static const struct sd_desc sd_desc_72a = { + .name = MODULE_NAME, + .init_controls = sd_init_controls_72a, + .config = sd_config, + .init = sd_init_72a, + .start = sd_start_72a, + .stopN = sd_stopN, + .pkt_scan = sd_pkt_scan, + .dq_callback = do_autogain, +#if IS_ENABLED(CONFIG_INPUT) + .other_input = 1, +#endif +}; +static const struct sd_desc *sd_desc[2] = { + &sd_desc_12a, + &sd_desc_72a +}; + +/* -- module initialisation -- */ +static const struct usb_device_id device_table[] = { + {USB_DEVICE(0x041e, 0x401a), .driver_info = Rev072A}, + {USB_DEVICE(0x041e, 0x403b), .driver_info = Rev012A}, + {USB_DEVICE(0x0458, 0x7004), .driver_info = Rev072A}, + {USB_DEVICE(0x0461, 0x0815), .driver_info = Rev072A}, + {USB_DEVICE(0x046d, 0x0928), .driver_info = Rev012A}, + {USB_DEVICE(0x046d, 0x0929), .driver_info = Rev012A}, + {USB_DEVICE(0x046d, 0x092a), .driver_info = Rev012A}, + {USB_DEVICE(0x046d, 0x092b), .driver_info = Rev012A}, + {USB_DEVICE(0x046d, 0x092c), .driver_info = Rev012A}, + {USB_DEVICE(0x046d, 0x092d), .driver_info = Rev012A}, + {USB_DEVICE(0x046d, 0x092e), .driver_info = Rev012A}, + {USB_DEVICE(0x046d, 0x092f), .driver_info = Rev012A}, + {USB_DEVICE(0x04fc, 0x0561), .driver_info = Rev072A}, + {USB_DEVICE(0x060b, 0xa001), .driver_info = Rev072A}, + {USB_DEVICE(0x10fd, 0x7e50), .driver_info = Rev072A}, + {USB_DEVICE(0xabcd, 0xcdee), .driver_info = Rev072A}, + {} +}; + +MODULE_DEVICE_TABLE(usb, device_table); + +/* -- device connect -- */ +static int sd_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + return gspca_dev_probe(intf, id, + sd_desc[id->driver_info], + sizeof(struct sd), + THIS_MODULE); +} + +static struct usb_driver sd_driver = { + .name = MODULE_NAME, + .id_table = device_table, + .probe = sd_probe, + .disconnect = gspca_disconnect, +#ifdef CONFIG_PM + .suspend = gspca_suspend, + .resume = gspca_resume, + .reset_resume = gspca_resume, +#endif +}; + +module_usb_driver(sd_driver); |