diff options
Diffstat (limited to 'drivers/media/usb/gspca/ov534.c')
| -rw-r--r-- | drivers/media/usb/gspca/ov534.c | 1550 |
1 files changed, 1550 insertions, 0 deletions
diff --git a/drivers/media/usb/gspca/ov534.c b/drivers/media/usb/gspca/ov534.c new file mode 100644 index 000000000..9e3326b66 --- /dev/null +++ b/drivers/media/usb/gspca/ov534.c @@ -0,0 +1,1550 @@ +/* + * ov534-ov7xxx gspca driver + * + * Copyright (C) 2008 Antonio Ospite <ospite@studenti.unina.it> + * Copyright (C) 2008 Jim Paris <jim@jtan.com> + * Copyright (C) 2009 Jean-Francois Moine http://moinejf.free.fr + * + * Based on a prototype written by Mark Ferrell <majortrips@gmail.com> + * USB protocol reverse engineered by Jim Paris <jim@jtan.com> + * https://jim.sh/svn/jim/devl/playstation/ps3/eye/test/ + * + * PS3 Eye camera enhanced by Richard Kaswy http://kaswy.free.fr + * PS3 Eye camera - brightness, contrast, awb, agc, aec controls + * added by Max Thrun <bear24rw@gmail.com> + * PS3 Eye camera - FPS range extended by Joseph Howse + * <josephhowse@nummist.com> http://nummist.com + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#define MODULE_NAME "ov534" + +#include "gspca.h" + +#include <linux/fixp-arith.h> +#include <media/v4l2-ctrls.h> + +#define OV534_REG_ADDRESS 0xf1 /* sensor address */ +#define OV534_REG_SUBADDR 0xf2 +#define OV534_REG_WRITE 0xf3 +#define OV534_REG_READ 0xf4 +#define OV534_REG_OPERATION 0xf5 +#define OV534_REG_STATUS 0xf6 + +#define OV534_OP_WRITE_3 0x37 +#define OV534_OP_WRITE_2 0x33 +#define OV534_OP_READ_2 0xf9 + +#define CTRL_TIMEOUT 500 +#define DEFAULT_FRAME_RATE 30 + +MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>"); +MODULE_DESCRIPTION("GSPCA/OV534 USB Camera Driver"); +MODULE_LICENSE("GPL"); + +/* specific webcam descriptor */ +struct sd { + struct gspca_dev gspca_dev; /* !! must be the first item */ + + struct v4l2_ctrl_handler ctrl_handler; + struct v4l2_ctrl *hue; + struct v4l2_ctrl *saturation; + struct v4l2_ctrl *brightness; + struct v4l2_ctrl *contrast; + struct { /* gain control cluster */ + struct v4l2_ctrl *autogain; + struct v4l2_ctrl *gain; + }; + struct v4l2_ctrl *autowhitebalance; + struct { /* exposure control cluster */ + struct v4l2_ctrl *autoexposure; + struct v4l2_ctrl *exposure; + }; + struct v4l2_ctrl *sharpness; + struct v4l2_ctrl *hflip; + struct v4l2_ctrl *vflip; + struct v4l2_ctrl *plfreq; + + __u32 last_pts; + u16 last_fid; + u8 frame_rate; + + u8 sensor; +}; +enum sensors { + SENSOR_OV767x, + SENSOR_OV772x, + NSENSORS +}; + +static int sd_start(struct gspca_dev *gspca_dev); +static void sd_stopN(struct gspca_dev *gspca_dev); + + +static const struct v4l2_pix_format ov772x_mode[] = { + {320, 240, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE, + .bytesperline = 320 * 2, + .sizeimage = 320 * 240 * 2, + .colorspace = V4L2_COLORSPACE_SRGB, + .priv = 1}, + {640, 480, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE, + .bytesperline = 640 * 2, + .sizeimage = 640 * 480 * 2, + .colorspace = V4L2_COLORSPACE_SRGB, + .priv = 0}, +}; +static const struct v4l2_pix_format ov767x_mode[] = { + {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE, + .bytesperline = 320, + .sizeimage = 320 * 240 * 3 / 8 + 590, + .colorspace = V4L2_COLORSPACE_JPEG}, + {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE, + .bytesperline = 640, + .sizeimage = 640 * 480 * 3 / 8 + 590, + .colorspace = V4L2_COLORSPACE_JPEG}, +}; + +static const u8 qvga_rates[] = {187, 150, 137, 125, 100, 75, 60, 50, 37, 30}; +static const u8 vga_rates[] = {60, 50, 40, 30, 15}; + +static const struct framerates ov772x_framerates[] = { + { /* 320x240 */ + .rates = qvga_rates, + .nrates = ARRAY_SIZE(qvga_rates), + }, + { /* 640x480 */ + .rates = vga_rates, + .nrates = ARRAY_SIZE(vga_rates), + }, +}; + +struct reg_array { + const u8 (*val)[2]; + int len; +}; + +static const u8 bridge_init_767x[][2] = { +/* comments from the ms-win file apollo7670.set */ +/* str1 */ + {0xf1, 0x42}, + {0x88, 0xf8}, + {0x89, 0xff}, + {0x76, 0x03}, + {0x92, 0x03}, + {0x95, 0x10}, + {0xe2, 0x00}, + {0xe7, 0x3e}, + {0x8d, 0x1c}, + {0x8e, 0x00}, + {0x8f, 0x00}, + {0x1f, 0x00}, + {0xc3, 0xf9}, + {0x89, 0xff}, + {0x88, 0xf8}, + {0x76, 0x03}, + {0x92, 0x01}, + {0x93, 0x18}, + {0x1c, 0x00}, + {0x1d, 0x48}, + {0x1d, 0x00}, + {0x1d, 0xff}, + {0x1d, 0x02}, + {0x1d, 0x58}, + {0x1d, 0x00}, + {0x1c, 0x0a}, + {0x1d, 0x0a}, + {0x1d, 0x0e}, + {0xc0, 0x50}, /* HSize 640 */ + {0xc1, 0x3c}, /* VSize 480 */ + {0x34, 0x05}, /* enable Audio Suspend mode */ + {0xc2, 0x0c}, /* Input YUV */ + {0xc3, 0xf9}, /* enable PRE */ + {0x34, 0x05}, /* enable Audio Suspend mode */ + {0xe7, 0x2e}, /* this solves failure of "SuspendResumeTest" */ + {0x31, 0xf9}, /* enable 1.8V Suspend */ + {0x35, 0x02}, /* turn on JPEG */ + {0xd9, 0x10}, + {0x25, 0x42}, /* GPIO[8]:Input */ + {0x94, 0x11}, /* If the default setting is loaded when + * system boots up, this flag is closed here */ +}; +static const u8 sensor_init_767x[][2] = { + {0x12, 0x80}, + {0x11, 0x03}, + {0x3a, 0x04}, + {0x12, 0x00}, + {0x17, 0x13}, + {0x18, 0x01}, + {0x32, 0xb6}, + {0x19, 0x02}, + {0x1a, 0x7a}, + {0x03, 0x0a}, + {0x0c, 0x00}, + {0x3e, 0x00}, + {0x70, 0x3a}, + {0x71, 0x35}, + {0x72, 0x11}, + {0x73, 0xf0}, + {0xa2, 0x02}, + {0x7a, 0x2a}, /* set Gamma=1.6 below */ + {0x7b, 0x12}, + {0x7c, 0x1d}, + {0x7d, 0x2d}, + {0x7e, 0x45}, + {0x7f, 0x50}, + {0x80, 0x59}, + {0x81, 0x62}, + {0x82, 0x6b}, + {0x83, 0x73}, + {0x84, 0x7b}, + {0x85, 0x8a}, + {0x86, 0x98}, + {0x87, 0xb2}, + {0x88, 0xca}, + {0x89, 0xe0}, + {0x13, 0xe0}, + {0x00, 0x00}, + {0x10, 0x00}, + {0x0d, 0x40}, + {0x14, 0x38}, /* gain max 16x */ + {0xa5, 0x05}, + {0xab, 0x07}, + {0x24, 0x95}, + {0x25, 0x33}, + {0x26, 0xe3}, + {0x9f, 0x78}, + {0xa0, 0x68}, + {0xa1, 0x03}, + {0xa6, 0xd8}, + {0xa7, 0xd8}, + {0xa8, 0xf0}, + {0xa9, 0x90}, + {0xaa, 0x94}, + {0x13, 0xe5}, + {0x0e, 0x61}, + {0x0f, 0x4b}, + {0x16, 0x02}, + {0x21, 0x02}, + {0x22, 0x91}, + {0x29, 0x07}, + {0x33, 0x0b}, + {0x35, 0x0b}, + {0x37, 0x1d}, + {0x38, 0x71}, + {0x39, 0x2a}, + {0x3c, 0x78}, + {0x4d, 0x40}, + {0x4e, 0x20}, + {0x69, 0x00}, + {0x6b, 0x4a}, + {0x74, 0x10}, + {0x8d, 0x4f}, + {0x8e, 0x00}, + {0x8f, 0x00}, + {0x90, 0x00}, + {0x91, 0x00}, + {0x96, 0x00}, + {0x9a, 0x80}, + {0xb0, 0x84}, + {0xb1, 0x0c}, + {0xb2, 0x0e}, + {0xb3, 0x82}, + {0xb8, 0x0a}, + {0x43, 0x0a}, + {0x44, 0xf0}, + {0x45, 0x34}, + {0x46, 0x58}, + {0x47, 0x28}, + {0x48, 0x3a}, + {0x59, 0x88}, + {0x5a, 0x88}, + {0x5b, 0x44}, + {0x5c, 0x67}, + {0x5d, 0x49}, + {0x5e, 0x0e}, + {0x6c, 0x0a}, + {0x6d, 0x55}, + {0x6e, 0x11}, + {0x6f, 0x9f}, + {0x6a, 0x40}, + {0x01, 0x40}, + {0x02, 0x40}, + {0x13, 0xe7}, + {0x4f, 0x80}, + {0x50, 0x80}, + {0x51, 0x00}, + {0x52, 0x22}, + {0x53, 0x5e}, + {0x54, 0x80}, + {0x58, 0x9e}, + {0x41, 0x08}, + {0x3f, 0x00}, + {0x75, 0x04}, + {0x76, 0xe1}, + {0x4c, 0x00}, + {0x77, 0x01}, + {0x3d, 0xc2}, + {0x4b, 0x09}, + {0xc9, 0x60}, + {0x41, 0x38}, /* jfm: auto sharpness + auto de-noise */ + {0x56, 0x40}, + {0x34, 0x11}, + {0x3b, 0xc2}, + {0xa4, 0x8a}, /* Night mode trigger point */ + {0x96, 0x00}, + {0x97, 0x30}, + {0x98, 0x20}, + {0x99, 0x20}, + {0x9a, 0x84}, + {0x9b, 0x29}, + {0x9c, 0x03}, + {0x9d, 0x4c}, + {0x9e, 0x3f}, + {0x78, 0x04}, + {0x79, 0x01}, + {0xc8, 0xf0}, + {0x79, 0x0f}, + {0xc8, 0x00}, + {0x79, 0x10}, + {0xc8, 0x7e}, + {0x79, 0x0a}, + {0xc8, 0x80}, + {0x79, 0x0b}, + {0xc8, 0x01}, + {0x79, 0x0c}, + {0xc8, 0x0f}, + {0x79, 0x0d}, + {0xc8, 0x20}, + {0x79, 0x09}, + {0xc8, 0x80}, + {0x79, 0x02}, + {0xc8, 0xc0}, + {0x79, 0x03}, + {0xc8, 0x20}, + {0x79, 0x26}, +}; +static const u8 bridge_start_vga_767x[][2] = { +/* str59 JPG */ + {0x94, 0xaa}, + {0xf1, 0x42}, + {0xe5, 0x04}, + {0xc0, 0x50}, + {0xc1, 0x3c}, + {0xc2, 0x0c}, + {0x35, 0x02}, /* turn on JPEG */ + {0xd9, 0x10}, + {0xda, 0x00}, /* for higher clock rate(30fps) */ + {0x34, 0x05}, /* enable Audio Suspend mode */ + {0xc3, 0xf9}, /* enable PRE */ + {0x8c, 0x00}, /* CIF VSize LSB[2:0] */ + {0x8d, 0x1c}, /* output YUV */ +/* {0x34, 0x05}, * enable Audio Suspend mode (?) */ + {0x50, 0x00}, /* H/V divider=0 */ + {0x51, 0xa0}, /* input H=640/4 */ + {0x52, 0x3c}, /* input V=480/4 */ + {0x53, 0x00}, /* offset X=0 */ + {0x54, 0x00}, /* offset Y=0 */ + {0x55, 0x00}, /* H/V size[8]=0 */ + {0x57, 0x00}, /* H-size[9]=0 */ + {0x5c, 0x00}, /* output size[9:8]=0 */ + {0x5a, 0xa0}, /* output H=640/4 */ + {0x5b, 0x78}, /* output V=480/4 */ + {0x1c, 0x0a}, + {0x1d, 0x0a}, + {0x94, 0x11}, +}; +static const u8 sensor_start_vga_767x[][2] = { + {0x11, 0x01}, + {0x1e, 0x04}, + {0x19, 0x02}, + {0x1a, 0x7a}, +}; +static const u8 bridge_start_qvga_767x[][2] = { +/* str86 JPG */ + {0x94, 0xaa}, + {0xf1, 0x42}, + {0xe5, 0x04}, + {0xc0, 0x80}, + {0xc1, 0x60}, + {0xc2, 0x0c}, + {0x35, 0x02}, /* turn on JPEG */ + {0xd9, 0x10}, + {0xc0, 0x50}, /* CIF HSize 640 */ + {0xc1, 0x3c}, /* CIF VSize 480 */ + {0x8c, 0x00}, /* CIF VSize LSB[2:0] */ + {0x8d, 0x1c}, /* output YUV */ + {0x34, 0x05}, /* enable Audio Suspend mode */ + {0xc2, 0x4c}, /* output YUV and Enable DCW */ + {0xc3, 0xf9}, /* enable PRE */ + {0x1c, 0x00}, /* indirect addressing */ + {0x1d, 0x48}, /* output YUV422 */ + {0x50, 0x89}, /* H/V divider=/2; plus DCW AVG */ + {0x51, 0xa0}, /* DCW input H=640/4 */ + {0x52, 0x78}, /* DCW input V=480/4 */ + {0x53, 0x00}, /* offset X=0 */ + {0x54, 0x00}, /* offset Y=0 */ + {0x55, 0x00}, /* H/V size[8]=0 */ + {0x57, 0x00}, /* H-size[9]=0 */ + {0x5c, 0x00}, /* DCW output size[9:8]=0 */ + {0x5a, 0x50}, /* DCW output H=320/4 */ + {0x5b, 0x3c}, /* DCW output V=240/4 */ + {0x1c, 0x0a}, + {0x1d, 0x0a}, + {0x94, 0x11}, +}; +static const u8 sensor_start_qvga_767x[][2] = { + {0x11, 0x01}, + {0x1e, 0x04}, + {0x19, 0x02}, + {0x1a, 0x7a}, +}; + +static const u8 bridge_init_772x[][2] = { + { 0xc2, 0x0c }, + { 0x88, 0xf8 }, + { 0xc3, 0x69 }, + { 0x89, 0xff }, + { 0x76, 0x03 }, + { 0x92, 0x01 }, + { 0x93, 0x18 }, + { 0x94, 0x10 }, + { 0x95, 0x10 }, + { 0xe2, 0x00 }, + { 0xe7, 0x3e }, + + { 0x96, 0x00 }, + + { 0x97, 0x20 }, + { 0x97, 0x20 }, + { 0x97, 0x20 }, + { 0x97, 0x0a }, + { 0x97, 0x3f }, + { 0x97, 0x4a }, + { 0x97, 0x20 }, + { 0x97, 0x15 }, + { 0x97, 0x0b }, + + { 0x8e, 0x40 }, + { 0x1f, 0x81 }, + { 0x34, 0x05 }, + { 0xe3, 0x04 }, + { 0x88, 0x00 }, + { 0x89, 0x00 }, + { 0x76, 0x00 }, + { 0xe7, 0x2e }, + { 0x31, 0xf9 }, + { 0x25, 0x42 }, + { 0x21, 0xf0 }, + + { 0x1c, 0x00 }, + { 0x1d, 0x40 }, + { 0x1d, 0x02 }, /* payload size 0x0200 * 4 = 2048 bytes */ + { 0x1d, 0x00 }, /* payload size */ + + { 0x1d, 0x02 }, /* frame size 0x025800 * 4 = 614400 */ + { 0x1d, 0x58 }, /* frame size */ + { 0x1d, 0x00 }, /* frame size */ + + { 0x1c, 0x0a }, + { 0x1d, 0x08 }, /* turn on UVC header */ + { 0x1d, 0x0e }, /* .. */ + + { 0x8d, 0x1c }, + { 0x8e, 0x80 }, + { 0xe5, 0x04 }, + + { 0xc0, 0x50 }, + { 0xc1, 0x3c }, + { 0xc2, 0x0c }, +}; +static const u8 sensor_init_772x[][2] = { + { 0x12, 0x80 }, + { 0x11, 0x01 }, +/*fixme: better have a delay?*/ + { 0x11, 0x01 }, + { 0x11, 0x01 }, + { 0x11, 0x01 }, + { 0x11, 0x01 }, + { 0x11, 0x01 }, + { 0x11, 0x01 }, + { 0x11, 0x01 }, + { 0x11, 0x01 }, + { 0x11, 0x01 }, + { 0x11, 0x01 }, + + { 0x3d, 0x03 }, + { 0x17, 0x26 }, + { 0x18, 0xa0 }, + { 0x19, 0x07 }, + { 0x1a, 0xf0 }, + { 0x32, 0x00 }, + { 0x29, 0xa0 }, + { 0x2c, 0xf0 }, + { 0x65, 0x20 }, + { 0x11, 0x01 }, + { 0x42, 0x7f }, + { 0x63, 0xaa }, /* AWB - was e0 */ + { 0x64, 0xff }, + { 0x66, 0x00 }, + { 0x13, 0xf0 }, /* com8 */ + { 0x0d, 0x41 }, + { 0x0f, 0xc5 }, + { 0x14, 0x11 }, + + { 0x22, 0x7f }, + { 0x23, 0x03 }, + { 0x24, 0x40 }, + { 0x25, 0x30 }, + { 0x26, 0xa1 }, + { 0x2a, 0x00 }, + { 0x2b, 0x00 }, + { 0x6b, 0xaa }, + { 0x13, 0xff }, /* AWB */ + + { 0x90, 0x05 }, + { 0x91, 0x01 }, + { 0x92, 0x03 }, + { 0x93, 0x00 }, + { 0x94, 0x60 }, + { 0x95, 0x3c }, + { 0x96, 0x24 }, + { 0x97, 0x1e }, + { 0x98, 0x62 }, + { 0x99, 0x80 }, + { 0x9a, 0x1e }, + { 0x9b, 0x08 }, + { 0x9c, 0x20 }, + { 0x9e, 0x81 }, + + { 0xa6, 0x07 }, + { 0x7e, 0x0c }, + { 0x7f, 0x16 }, + { 0x80, 0x2a }, + { 0x81, 0x4e }, + { 0x82, 0x61 }, + { 0x83, 0x6f }, + { 0x84, 0x7b }, + { 0x85, 0x86 }, + { 0x86, 0x8e }, + { 0x87, 0x97 }, + { 0x88, 0xa4 }, + { 0x89, 0xaf }, + { 0x8a, 0xc5 }, + { 0x8b, 0xd7 }, + { 0x8c, 0xe8 }, + { 0x8d, 0x20 }, + + { 0x0c, 0x90 }, + + { 0x2b, 0x00 }, + { 0x22, 0x7f }, + { 0x23, 0x03 }, + { 0x11, 0x01 }, + { 0x0c, 0xd0 }, + { 0x64, 0xff }, + { 0x0d, 0x41 }, + + { 0x14, 0x41 }, + { 0x0e, 0xcd }, + { 0xac, 0xbf }, + { 0x8e, 0x00 }, /* De-noise threshold */ + { 0x0c, 0xd0 } +}; +static const u8 bridge_start_vga_772x[][2] = { + {0x1c, 0x00}, + {0x1d, 0x40}, + {0x1d, 0x02}, + {0x1d, 0x00}, + {0x1d, 0x02}, + {0x1d, 0x58}, + {0x1d, 0x00}, + {0xc0, 0x50}, + {0xc1, 0x3c}, +}; +static const u8 sensor_start_vga_772x[][2] = { + {0x12, 0x00}, + {0x17, 0x26}, + {0x18, 0xa0}, + {0x19, 0x07}, + {0x1a, 0xf0}, + {0x29, 0xa0}, + {0x2c, 0xf0}, + {0x65, 0x20}, +}; +static const u8 bridge_start_qvga_772x[][2] = { + {0x1c, 0x00}, + {0x1d, 0x40}, + {0x1d, 0x02}, + {0x1d, 0x00}, + {0x1d, 0x01}, + {0x1d, 0x4b}, + {0x1d, 0x00}, + {0xc0, 0x28}, + {0xc1, 0x1e}, +}; +static const u8 sensor_start_qvga_772x[][2] = { + {0x12, 0x40}, + {0x17, 0x3f}, + {0x18, 0x50}, + {0x19, 0x03}, + {0x1a, 0x78}, + {0x29, 0x50}, + {0x2c, 0x78}, + {0x65, 0x2f}, +}; + +static void ov534_reg_write(struct gspca_dev *gspca_dev, u16 reg, u8 val) +{ + struct usb_device *udev = gspca_dev->dev; + int ret; + + if (gspca_dev->usb_err < 0) + return; + + gspca_dbg(gspca_dev, D_USBO, "SET 01 0000 %04x %02x\n", reg, val); + gspca_dev->usb_buf[0] = val; + ret = usb_control_msg(udev, + usb_sndctrlpipe(udev, 0), + 0x01, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT); + if (ret < 0) { + pr_err("write failed %d\n", ret); + gspca_dev->usb_err = ret; + } +} + +static u8 ov534_reg_read(struct gspca_dev *gspca_dev, u16 reg) +{ + struct usb_device *udev = gspca_dev->dev; + int ret; + + if (gspca_dev->usb_err < 0) + return 0; + ret = usb_control_msg(udev, + usb_rcvctrlpipe(udev, 0), + 0x01, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT); + gspca_dbg(gspca_dev, D_USBI, "GET 01 0000 %04x %02x\n", + reg, gspca_dev->usb_buf[0]); + if (ret < 0) { + pr_err("read failed %d\n", ret); + gspca_dev->usb_err = ret; + /* + * Make sure the result is zeroed to avoid uninitialized + * values. + */ + gspca_dev->usb_buf[0] = 0; + } + return gspca_dev->usb_buf[0]; +} + +/* Two bits control LED: 0x21 bit 7 and 0x23 bit 7. + * (direction and output)? */ +static void ov534_set_led(struct gspca_dev *gspca_dev, int status) +{ + u8 data; + + gspca_dbg(gspca_dev, D_CONF, "led status: %d\n", status); + + data = ov534_reg_read(gspca_dev, 0x21); + data |= 0x80; + ov534_reg_write(gspca_dev, 0x21, data); + + data = ov534_reg_read(gspca_dev, 0x23); + if (status) + data |= 0x80; + else + data &= ~0x80; + + ov534_reg_write(gspca_dev, 0x23, data); + + if (!status) { + data = ov534_reg_read(gspca_dev, 0x21); + data &= ~0x80; + ov534_reg_write(gspca_dev, 0x21, data); + } +} + +static int sccb_check_status(struct gspca_dev *gspca_dev) +{ + u8 data; + int i; + + for (i = 0; i < 5; i++) { + msleep(10); + data = ov534_reg_read(gspca_dev, OV534_REG_STATUS); + + switch (data) { + case 0x00: + return 1; + case 0x04: + return 0; + case 0x03: + break; + default: + gspca_err(gspca_dev, "sccb status 0x%02x, attempt %d/5\n", + data, i + 1); + } + } + return 0; +} + +static void sccb_reg_write(struct gspca_dev *gspca_dev, u8 reg, u8 val) +{ + gspca_dbg(gspca_dev, D_USBO, "sccb write: %02x %02x\n", reg, val); + ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg); + ov534_reg_write(gspca_dev, OV534_REG_WRITE, val); + ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_3); + + if (!sccb_check_status(gspca_dev)) { + pr_err("sccb_reg_write failed\n"); + gspca_dev->usb_err = -EIO; + } +} + +static u8 sccb_reg_read(struct gspca_dev *gspca_dev, u16 reg) +{ + ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg); + ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_2); + if (!sccb_check_status(gspca_dev)) + pr_err("sccb_reg_read failed 1\n"); + + ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_READ_2); + if (!sccb_check_status(gspca_dev)) + pr_err("sccb_reg_read failed 2\n"); + + return ov534_reg_read(gspca_dev, OV534_REG_READ); +} + +/* output a bridge sequence (reg - val) */ +static void reg_w_array(struct gspca_dev *gspca_dev, + const u8 (*data)[2], int len) +{ + while (--len >= 0) { + ov534_reg_write(gspca_dev, (*data)[0], (*data)[1]); + data++; + } +} + +/* output a sensor sequence (reg - val) */ +static void sccb_w_array(struct gspca_dev *gspca_dev, + const u8 (*data)[2], int len) +{ + while (--len >= 0) { + if ((*data)[0] != 0xff) { + sccb_reg_write(gspca_dev, (*data)[0], (*data)[1]); + } else { + sccb_reg_read(gspca_dev, (*data)[1]); + sccb_reg_write(gspca_dev, 0xff, 0x00); + } + data++; + } +} + +/* ov772x specific controls */ +static void set_frame_rate(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + int i; + struct rate_s { + u8 fps; + u8 r11; + u8 r0d; + u8 re5; + }; + const struct rate_s *r; + static const struct rate_s rate_0[] = { /* 640x480 */ + {60, 0x01, 0xc1, 0x04}, + {50, 0x01, 0x41, 0x02}, + {40, 0x02, 0xc1, 0x04}, + {30, 0x04, 0x81, 0x02}, + {15, 0x03, 0x41, 0x04}, + }; + static const struct rate_s rate_1[] = { /* 320x240 */ +/* {205, 0x01, 0xc1, 0x02}, * 205 FPS: video is partly corrupt */ + {187, 0x01, 0x81, 0x02}, /* 187 FPS or below: video is valid */ + {150, 0x01, 0xc1, 0x04}, + {137, 0x02, 0xc1, 0x02}, + {125, 0x02, 0x81, 0x02}, + {100, 0x02, 0xc1, 0x04}, + {75, 0x03, 0xc1, 0x04}, + {60, 0x04, 0xc1, 0x04}, + {50, 0x02, 0x41, 0x04}, + {37, 0x03, 0x41, 0x04}, + {30, 0x04, 0x41, 0x04}, + }; + + if (sd->sensor != SENSOR_OV772x) + return; + if (gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv == 0) { + r = rate_0; + i = ARRAY_SIZE(rate_0); + } else { + r = rate_1; + i = ARRAY_SIZE(rate_1); + } + while (--i > 0) { + if (sd->frame_rate >= r->fps) + break; + r++; + } + + sccb_reg_write(gspca_dev, 0x11, r->r11); + sccb_reg_write(gspca_dev, 0x0d, r->r0d); + ov534_reg_write(gspca_dev, 0xe5, r->re5); + + gspca_dbg(gspca_dev, D_PROBE, "frame_rate: %d\n", r->fps); +} + +static void sethue(struct gspca_dev *gspca_dev, s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + if (sd->sensor == SENSOR_OV767x) { + /* TBD */ + } else { + s16 huesin; + s16 huecos; + + /* According to the datasheet the registers expect HUESIN and + * HUECOS to be the result of the trigonometric functions, + * scaled by 0x80. + * + * The 0x7fff here represents the maximum absolute value + * returned byt fixp_sin and fixp_cos, so the scaling will + * consider the result like in the interval [-1.0, 1.0]. + */ + huesin = fixp_sin16(val) * 0x80 / 0x7fff; + huecos = fixp_cos16(val) * 0x80 / 0x7fff; + + if (huesin < 0) { + sccb_reg_write(gspca_dev, 0xab, + sccb_reg_read(gspca_dev, 0xab) | 0x2); + huesin = -huesin; + } else { + sccb_reg_write(gspca_dev, 0xab, + sccb_reg_read(gspca_dev, 0xab) & ~0x2); + + } + sccb_reg_write(gspca_dev, 0xa9, (u8)huecos); + sccb_reg_write(gspca_dev, 0xaa, (u8)huesin); + } +} + +static void setsaturation(struct gspca_dev *gspca_dev, s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + if (sd->sensor == SENSOR_OV767x) { + int i; + static u8 color_tb[][6] = { + {0x42, 0x42, 0x00, 0x11, 0x30, 0x41}, + {0x52, 0x52, 0x00, 0x16, 0x3c, 0x52}, + {0x66, 0x66, 0x00, 0x1b, 0x4b, 0x66}, + {0x80, 0x80, 0x00, 0x22, 0x5e, 0x80}, + {0x9a, 0x9a, 0x00, 0x29, 0x71, 0x9a}, + {0xb8, 0xb8, 0x00, 0x31, 0x87, 0xb8}, + {0xdd, 0xdd, 0x00, 0x3b, 0xa2, 0xdd}, + }; + + for (i = 0; i < ARRAY_SIZE(color_tb[0]); i++) + sccb_reg_write(gspca_dev, 0x4f + i, color_tb[val][i]); + } else { + sccb_reg_write(gspca_dev, 0xa7, val); /* U saturation */ + sccb_reg_write(gspca_dev, 0xa8, val); /* V saturation */ + } +} + +static void setbrightness(struct gspca_dev *gspca_dev, s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + if (sd->sensor == SENSOR_OV767x) { + if (val < 0) + val = 0x80 - val; + sccb_reg_write(gspca_dev, 0x55, val); /* bright */ + } else { + sccb_reg_write(gspca_dev, 0x9b, val); + } +} + +static void setcontrast(struct gspca_dev *gspca_dev, s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + if (sd->sensor == SENSOR_OV767x) + sccb_reg_write(gspca_dev, 0x56, val); /* contras */ + else + sccb_reg_write(gspca_dev, 0x9c, val); +} + +static void setgain(struct gspca_dev *gspca_dev, s32 val) +{ + switch (val & 0x30) { + case 0x00: + val &= 0x0f; + break; + case 0x10: + val &= 0x0f; + val |= 0x30; + break; + case 0x20: + val &= 0x0f; + val |= 0x70; + break; + default: +/* case 0x30: */ + val &= 0x0f; + val |= 0xf0; + break; + } + sccb_reg_write(gspca_dev, 0x00, val); +} + +static s32 getgain(struct gspca_dev *gspca_dev) +{ + return sccb_reg_read(gspca_dev, 0x00); +} + +static void setexposure(struct gspca_dev *gspca_dev, s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + if (sd->sensor == SENSOR_OV767x) { + + /* set only aec[9:2] */ + sccb_reg_write(gspca_dev, 0x10, val); /* aech */ + } else { + + /* 'val' is one byte and represents half of the exposure value + * we are going to set into registers, a two bytes value: + * + * MSB: ((u16) val << 1) >> 8 == val >> 7 + * LSB: ((u16) val << 1) & 0xff == val << 1 + */ + sccb_reg_write(gspca_dev, 0x08, val >> 7); + sccb_reg_write(gspca_dev, 0x10, val << 1); + } +} + +static s32 getexposure(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + + if (sd->sensor == SENSOR_OV767x) { + /* get only aec[9:2] */ + return sccb_reg_read(gspca_dev, 0x10); /* aech */ + } else { + u8 hi = sccb_reg_read(gspca_dev, 0x08); + u8 lo = sccb_reg_read(gspca_dev, 0x10); + return (hi << 8 | lo) >> 1; + } +} + +static void setagc(struct gspca_dev *gspca_dev, s32 val) +{ + if (val) { + sccb_reg_write(gspca_dev, 0x13, + sccb_reg_read(gspca_dev, 0x13) | 0x04); + sccb_reg_write(gspca_dev, 0x64, + sccb_reg_read(gspca_dev, 0x64) | 0x03); + } else { + sccb_reg_write(gspca_dev, 0x13, + sccb_reg_read(gspca_dev, 0x13) & ~0x04); + sccb_reg_write(gspca_dev, 0x64, + sccb_reg_read(gspca_dev, 0x64) & ~0x03); + } +} + +static void setawb(struct gspca_dev *gspca_dev, s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + if (val) { + sccb_reg_write(gspca_dev, 0x13, + sccb_reg_read(gspca_dev, 0x13) | 0x02); + if (sd->sensor == SENSOR_OV772x) + sccb_reg_write(gspca_dev, 0x63, + sccb_reg_read(gspca_dev, 0x63) | 0xc0); + } else { + sccb_reg_write(gspca_dev, 0x13, + sccb_reg_read(gspca_dev, 0x13) & ~0x02); + if (sd->sensor == SENSOR_OV772x) + sccb_reg_write(gspca_dev, 0x63, + sccb_reg_read(gspca_dev, 0x63) & ~0xc0); + } +} + +static void setaec(struct gspca_dev *gspca_dev, s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + u8 data; + + data = sd->sensor == SENSOR_OV767x ? + 0x05 : /* agc + aec */ + 0x01; /* agc */ + switch (val) { + case V4L2_EXPOSURE_AUTO: + sccb_reg_write(gspca_dev, 0x13, + sccb_reg_read(gspca_dev, 0x13) | data); + break; + case V4L2_EXPOSURE_MANUAL: + sccb_reg_write(gspca_dev, 0x13, + sccb_reg_read(gspca_dev, 0x13) & ~data); + break; + } +} + +static void setsharpness(struct gspca_dev *gspca_dev, s32 val) +{ + sccb_reg_write(gspca_dev, 0x91, val); /* Auto de-noise threshold */ + sccb_reg_write(gspca_dev, 0x8e, val); /* De-noise threshold */ +} + +static void sethvflip(struct gspca_dev *gspca_dev, s32 hflip, s32 vflip) +{ + struct sd *sd = (struct sd *) gspca_dev; + u8 val; + + if (sd->sensor == SENSOR_OV767x) { + val = sccb_reg_read(gspca_dev, 0x1e); /* mvfp */ + val &= ~0x30; + if (hflip) + val |= 0x20; + if (vflip) + val |= 0x10; + sccb_reg_write(gspca_dev, 0x1e, val); + } else { + val = sccb_reg_read(gspca_dev, 0x0c); + val &= ~0xc0; + if (hflip == 0) + val |= 0x40; + if (vflip == 0) + val |= 0x80; + sccb_reg_write(gspca_dev, 0x0c, val); + } +} + +static void setlightfreq(struct gspca_dev *gspca_dev, s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + + val = val ? 0x9e : 0x00; + if (sd->sensor == SENSOR_OV767x) { + sccb_reg_write(gspca_dev, 0x2a, 0x00); + if (val) + val = 0x9d; /* insert dummy to 25fps for 50Hz */ + } + sccb_reg_write(gspca_dev, 0x2b, val); +} + + +/* 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; + + cam = &gspca_dev->cam; + + cam->cam_mode = ov772x_mode; + cam->nmodes = ARRAY_SIZE(ov772x_mode); + + sd->frame_rate = DEFAULT_FRAME_RATE; + + return 0; +} + +static int ov534_g_volatile_ctrl(struct v4l2_ctrl *ctrl) +{ + struct sd *sd = container_of(ctrl->handler, struct sd, ctrl_handler); + struct gspca_dev *gspca_dev = &sd->gspca_dev; + + switch (ctrl->id) { + case V4L2_CID_AUTOGAIN: + gspca_dev->usb_err = 0; + if (ctrl->val && sd->gain && gspca_dev->streaming) + sd->gain->val = getgain(gspca_dev); + return gspca_dev->usb_err; + + case V4L2_CID_EXPOSURE_AUTO: + gspca_dev->usb_err = 0; + if (ctrl->val == V4L2_EXPOSURE_AUTO && sd->exposure && + gspca_dev->streaming) + sd->exposure->val = getexposure(gspca_dev); + return gspca_dev->usb_err; + } + return -EINVAL; +} + +static int ov534_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct sd *sd = container_of(ctrl->handler, struct sd, ctrl_handler); + struct gspca_dev *gspca_dev = &sd->gspca_dev; + + gspca_dev->usb_err = 0; + if (!gspca_dev->streaming) + return 0; + + switch (ctrl->id) { + case V4L2_CID_HUE: + sethue(gspca_dev, ctrl->val); + break; + case V4L2_CID_SATURATION: + setsaturation(gspca_dev, ctrl->val); + break; + case V4L2_CID_BRIGHTNESS: + setbrightness(gspca_dev, ctrl->val); + break; + case V4L2_CID_CONTRAST: + setcontrast(gspca_dev, ctrl->val); + break; + case V4L2_CID_AUTOGAIN: + /* case V4L2_CID_GAIN: */ + setagc(gspca_dev, ctrl->val); + if (!gspca_dev->usb_err && !ctrl->val && sd->gain) + setgain(gspca_dev, sd->gain->val); + break; + case V4L2_CID_AUTO_WHITE_BALANCE: + setawb(gspca_dev, ctrl->val); + break; + case V4L2_CID_EXPOSURE_AUTO: + /* case V4L2_CID_EXPOSURE: */ + setaec(gspca_dev, ctrl->val); + if (!gspca_dev->usb_err && ctrl->val == V4L2_EXPOSURE_MANUAL && + sd->exposure) + setexposure(gspca_dev, sd->exposure->val); + break; + case V4L2_CID_SHARPNESS: + setsharpness(gspca_dev, ctrl->val); + break; + case V4L2_CID_HFLIP: + sethvflip(gspca_dev, ctrl->val, sd->vflip->val); + break; + case V4L2_CID_VFLIP: + sethvflip(gspca_dev, sd->hflip->val, ctrl->val); + break; + case V4L2_CID_POWER_LINE_FREQUENCY: + setlightfreq(gspca_dev, ctrl->val); + break; + } + return gspca_dev->usb_err; +} + +static const struct v4l2_ctrl_ops ov534_ctrl_ops = { + .g_volatile_ctrl = ov534_g_volatile_ctrl, + .s_ctrl = ov534_s_ctrl, +}; + +static int sd_init_controls(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + struct v4l2_ctrl_handler *hdl = &sd->ctrl_handler; + /* parameters with different values between the supported sensors */ + int saturation_min; + int saturation_max; + int saturation_def; + int brightness_min; + int brightness_max; + int brightness_def; + int contrast_max; + int contrast_def; + int exposure_min; + int exposure_max; + int exposure_def; + int hflip_def; + + if (sd->sensor == SENSOR_OV767x) { + saturation_min = 0, + saturation_max = 6, + saturation_def = 3, + brightness_min = -127; + brightness_max = 127; + brightness_def = 0; + contrast_max = 0x80; + contrast_def = 0x40; + exposure_min = 0x08; + exposure_max = 0x60; + exposure_def = 0x13; + hflip_def = 1; + } else { + saturation_min = 0, + saturation_max = 255, + saturation_def = 64, + brightness_min = 0; + brightness_max = 255; + brightness_def = 0; + contrast_max = 255; + contrast_def = 32; + exposure_min = 0; + exposure_max = 255; + exposure_def = 120; + hflip_def = 0; + } + + gspca_dev->vdev.ctrl_handler = hdl; + + v4l2_ctrl_handler_init(hdl, 13); + + if (sd->sensor == SENSOR_OV772x) + sd->hue = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops, + V4L2_CID_HUE, -90, 90, 1, 0); + + sd->saturation = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops, + V4L2_CID_SATURATION, saturation_min, saturation_max, 1, + saturation_def); + sd->brightness = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops, + V4L2_CID_BRIGHTNESS, brightness_min, brightness_max, 1, + brightness_def); + sd->contrast = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops, + V4L2_CID_CONTRAST, 0, contrast_max, 1, contrast_def); + + if (sd->sensor == SENSOR_OV772x) { + sd->autogain = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops, + V4L2_CID_AUTOGAIN, 0, 1, 1, 1); + sd->gain = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops, + V4L2_CID_GAIN, 0, 63, 1, 20); + } + + sd->autoexposure = v4l2_ctrl_new_std_menu(hdl, &ov534_ctrl_ops, + V4L2_CID_EXPOSURE_AUTO, + V4L2_EXPOSURE_MANUAL, 0, + V4L2_EXPOSURE_AUTO); + sd->exposure = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops, + V4L2_CID_EXPOSURE, exposure_min, exposure_max, 1, + exposure_def); + + sd->autowhitebalance = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops, + V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1); + + if (sd->sensor == SENSOR_OV772x) + sd->sharpness = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops, + V4L2_CID_SHARPNESS, 0, 63, 1, 0); + + sd->hflip = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops, + V4L2_CID_HFLIP, 0, 1, 1, hflip_def); + sd->vflip = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 0); + sd->plfreq = v4l2_ctrl_new_std_menu(hdl, &ov534_ctrl_ops, + V4L2_CID_POWER_LINE_FREQUENCY, + V4L2_CID_POWER_LINE_FREQUENCY_50HZ, 0, + V4L2_CID_POWER_LINE_FREQUENCY_DISABLED); + + if (hdl->error) { + pr_err("Could not initialize controls\n"); + return hdl->error; + } + + if (sd->sensor == SENSOR_OV772x) + v4l2_ctrl_auto_cluster(2, &sd->autogain, 0, true); + + v4l2_ctrl_auto_cluster(2, &sd->autoexposure, V4L2_EXPOSURE_MANUAL, + true); + + return 0; +} + +/* this function is called at probe and resume time */ +static int sd_init(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + u16 sensor_id; + static const struct reg_array bridge_init[NSENSORS] = { + [SENSOR_OV767x] = {bridge_init_767x, ARRAY_SIZE(bridge_init_767x)}, + [SENSOR_OV772x] = {bridge_init_772x, ARRAY_SIZE(bridge_init_772x)}, + }; + static const struct reg_array sensor_init[NSENSORS] = { + [SENSOR_OV767x] = {sensor_init_767x, ARRAY_SIZE(sensor_init_767x)}, + [SENSOR_OV772x] = {sensor_init_772x, ARRAY_SIZE(sensor_init_772x)}, + }; + + /* reset bridge */ + ov534_reg_write(gspca_dev, 0xe7, 0x3a); + ov534_reg_write(gspca_dev, 0xe0, 0x08); + msleep(100); + + /* initialize the sensor address */ + ov534_reg_write(gspca_dev, OV534_REG_ADDRESS, 0x42); + + /* reset sensor */ + sccb_reg_write(gspca_dev, 0x12, 0x80); + msleep(10); + + /* probe the sensor */ + sccb_reg_read(gspca_dev, 0x0a); + sensor_id = sccb_reg_read(gspca_dev, 0x0a) << 8; + sccb_reg_read(gspca_dev, 0x0b); + sensor_id |= sccb_reg_read(gspca_dev, 0x0b); + gspca_dbg(gspca_dev, D_PROBE, "Sensor ID: %04x\n", sensor_id); + + if ((sensor_id & 0xfff0) == 0x7670) { + sd->sensor = SENSOR_OV767x; + gspca_dev->cam.cam_mode = ov767x_mode; + gspca_dev->cam.nmodes = ARRAY_SIZE(ov767x_mode); + } else { + sd->sensor = SENSOR_OV772x; + gspca_dev->cam.bulk = 1; + gspca_dev->cam.bulk_size = 16384; + gspca_dev->cam.bulk_nurbs = 2; + gspca_dev->cam.mode_framerates = ov772x_framerates; + } + + /* initialize */ + reg_w_array(gspca_dev, bridge_init[sd->sensor].val, + bridge_init[sd->sensor].len); + ov534_set_led(gspca_dev, 1); + sccb_w_array(gspca_dev, sensor_init[sd->sensor].val, + sensor_init[sd->sensor].len); + + sd_stopN(gspca_dev); +/* set_frame_rate(gspca_dev); */ + + return gspca_dev->usb_err; +} + +static int sd_start(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + int mode; + static const struct reg_array bridge_start[NSENSORS][2] = { + [SENSOR_OV767x] = {{bridge_start_qvga_767x, + ARRAY_SIZE(bridge_start_qvga_767x)}, + {bridge_start_vga_767x, + ARRAY_SIZE(bridge_start_vga_767x)}}, + [SENSOR_OV772x] = {{bridge_start_qvga_772x, + ARRAY_SIZE(bridge_start_qvga_772x)}, + {bridge_start_vga_772x, + ARRAY_SIZE(bridge_start_vga_772x)}}, + }; + static const struct reg_array sensor_start[NSENSORS][2] = { + [SENSOR_OV767x] = {{sensor_start_qvga_767x, + ARRAY_SIZE(sensor_start_qvga_767x)}, + {sensor_start_vga_767x, + ARRAY_SIZE(sensor_start_vga_767x)}}, + [SENSOR_OV772x] = {{sensor_start_qvga_772x, + ARRAY_SIZE(sensor_start_qvga_772x)}, + {sensor_start_vga_772x, + ARRAY_SIZE(sensor_start_vga_772x)}}, + }; + + /* (from ms-win trace) */ + if (sd->sensor == SENSOR_OV767x) + sccb_reg_write(gspca_dev, 0x1e, 0x04); + /* black sun enable ? */ + + mode = gspca_dev->curr_mode; /* 0: 320x240, 1: 640x480 */ + reg_w_array(gspca_dev, bridge_start[sd->sensor][mode].val, + bridge_start[sd->sensor][mode].len); + sccb_w_array(gspca_dev, sensor_start[sd->sensor][mode].val, + sensor_start[sd->sensor][mode].len); + + set_frame_rate(gspca_dev); + + if (sd->hue) + sethue(gspca_dev, v4l2_ctrl_g_ctrl(sd->hue)); + setsaturation(gspca_dev, v4l2_ctrl_g_ctrl(sd->saturation)); + if (sd->autogain) + setagc(gspca_dev, v4l2_ctrl_g_ctrl(sd->autogain)); + setawb(gspca_dev, v4l2_ctrl_g_ctrl(sd->autowhitebalance)); + setaec(gspca_dev, v4l2_ctrl_g_ctrl(sd->autoexposure)); + if (sd->gain) + setgain(gspca_dev, v4l2_ctrl_g_ctrl(sd->gain)); + setexposure(gspca_dev, v4l2_ctrl_g_ctrl(sd->exposure)); + setbrightness(gspca_dev, v4l2_ctrl_g_ctrl(sd->brightness)); + setcontrast(gspca_dev, v4l2_ctrl_g_ctrl(sd->contrast)); + if (sd->sharpness) + setsharpness(gspca_dev, v4l2_ctrl_g_ctrl(sd->sharpness)); + sethvflip(gspca_dev, v4l2_ctrl_g_ctrl(sd->hflip), + v4l2_ctrl_g_ctrl(sd->vflip)); + setlightfreq(gspca_dev, v4l2_ctrl_g_ctrl(sd->plfreq)); + + ov534_set_led(gspca_dev, 1); + ov534_reg_write(gspca_dev, 0xe0, 0x00); + return gspca_dev->usb_err; +} + +static void sd_stopN(struct gspca_dev *gspca_dev) +{ + ov534_reg_write(gspca_dev, 0xe0, 0x09); + ov534_set_led(gspca_dev, 0); +} + +/* Values for bmHeaderInfo (Video and Still Image Payload Headers, 2.4.3.3) */ +#define UVC_STREAM_EOH (1 << 7) +#define UVC_STREAM_ERR (1 << 6) +#define UVC_STREAM_STI (1 << 5) +#define UVC_STREAM_RES (1 << 4) +#define UVC_STREAM_SCR (1 << 3) +#define UVC_STREAM_PTS (1 << 2) +#define UVC_STREAM_EOF (1 << 1) +#define UVC_STREAM_FID (1 << 0) + +static void sd_pkt_scan(struct gspca_dev *gspca_dev, + u8 *data, int len) +{ + struct sd *sd = (struct sd *) gspca_dev; + __u32 this_pts; + u16 this_fid; + int remaining_len = len; + int payload_len; + + payload_len = gspca_dev->cam.bulk ? 2048 : 2040; + do { + len = min(remaining_len, payload_len); + + /* Payloads are prefixed with a UVC-style header. We + consider a frame to start when the FID toggles, or the PTS + changes. A frame ends when EOF is set, and we've received + the correct number of bytes. */ + + /* Verify UVC header. Header length is always 12 */ + if (data[0] != 12 || len < 12) { + gspca_dbg(gspca_dev, D_PACK, "bad header\n"); + goto discard; + } + + /* Check errors */ + if (data[1] & UVC_STREAM_ERR) { + gspca_dbg(gspca_dev, D_PACK, "payload error\n"); + goto discard; + } + + /* Extract PTS and FID */ + if (!(data[1] & UVC_STREAM_PTS)) { + gspca_dbg(gspca_dev, D_PACK, "PTS not present\n"); + goto discard; + } + this_pts = (data[5] << 24) | (data[4] << 16) + | (data[3] << 8) | data[2]; + this_fid = (data[1] & UVC_STREAM_FID) ? 1 : 0; + + /* If PTS or FID has changed, start a new frame. */ + if (this_pts != sd->last_pts || this_fid != sd->last_fid) { + if (gspca_dev->last_packet_type == INTER_PACKET) + gspca_frame_add(gspca_dev, LAST_PACKET, + NULL, 0); + sd->last_pts = this_pts; + sd->last_fid = this_fid; + gspca_frame_add(gspca_dev, FIRST_PACKET, + data + 12, len - 12); + /* If this packet is marked as EOF, end the frame */ + } else if (data[1] & UVC_STREAM_EOF) { + sd->last_pts = 0; + if (gspca_dev->pixfmt.pixelformat == V4L2_PIX_FMT_YUYV + && gspca_dev->image_len + len - 12 != + gspca_dev->pixfmt.width * + gspca_dev->pixfmt.height * 2) { + gspca_dbg(gspca_dev, D_PACK, "wrong sized frame\n"); + goto discard; + } + gspca_frame_add(gspca_dev, LAST_PACKET, + data + 12, len - 12); + } else { + + /* Add the data from this payload */ + gspca_frame_add(gspca_dev, INTER_PACKET, + data + 12, len - 12); + } + + /* Done this payload */ + goto scan_next; + +discard: + /* Discard data until a new frame starts. */ + gspca_dev->last_packet_type = DISCARD_PACKET; + +scan_next: + remaining_len -= len; + data += len; + } while (remaining_len > 0); +} + +/* get stream parameters (framerate) */ +static void sd_get_streamparm(struct gspca_dev *gspca_dev, + struct v4l2_streamparm *parm) +{ + struct v4l2_captureparm *cp = &parm->parm.capture; + struct v4l2_fract *tpf = &cp->timeperframe; + struct sd *sd = (struct sd *) gspca_dev; + + tpf->numerator = 1; + tpf->denominator = sd->frame_rate; +} + +/* set stream parameters (framerate) */ +static void sd_set_streamparm(struct gspca_dev *gspca_dev, + struct v4l2_streamparm *parm) +{ + struct v4l2_captureparm *cp = &parm->parm.capture; + struct v4l2_fract *tpf = &cp->timeperframe; + struct sd *sd = (struct sd *) gspca_dev; + + if (tpf->numerator == 0 || tpf->denominator == 0) + sd->frame_rate = DEFAULT_FRAME_RATE; + else + sd->frame_rate = tpf->denominator / tpf->numerator; + + if (gspca_dev->streaming) + set_frame_rate(gspca_dev); + + /* Return the actual framerate */ + tpf->numerator = 1; + tpf->denominator = sd->frame_rate; +} + +/* sub-driver description */ +static const struct sd_desc sd_desc = { + .name = MODULE_NAME, + .config = sd_config, + .init = sd_init, + .init_controls = sd_init_controls, + .start = sd_start, + .stopN = sd_stopN, + .pkt_scan = sd_pkt_scan, + .get_streamparm = sd_get_streamparm, + .set_streamparm = sd_set_streamparm, +}; + +/* -- module initialisation -- */ +static const struct usb_device_id device_table[] = { + {USB_DEVICE(0x1415, 0x2000)}, + {USB_DEVICE(0x06f8, 0x3002)}, + {} +}; + +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, 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); |