/*
* Sunplus spca561 subdriver
*
* Copyright (C) 2004 Michel Xhaard mxhaard@magic.fr
*
* V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define MODULE_NAME "spca561"
#include "gspca.h"
MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
MODULE_DESCRIPTION("GSPCA/SPCA561 USB Camera Driver");
MODULE_LICENSE("GPL");
/* specific webcam descriptor */
struct sd {
struct gspca_dev gspca_dev; /* !! must be the first item */
__u16 exposure; /* rev12a only */
#define EXPOSURE_MIN 1
#define EXPOSURE_DEF 200
#define EXPOSURE_MAX (4095 - 900) /* see set_exposure */
__u8 contrast; /* rev72a only */
#define CONTRAST_MIN 0x00
#define CONTRAST_DEF 0x20
#define CONTRAST_MAX 0x3f
__u8 brightness; /* rev72a only */
#define BRIGHTNESS_MIN 0
#define BRIGHTNESS_DEF 0x20
#define BRIGHTNESS_MAX 0x3f
__u8 white;
#define WHITE_MIN 1
#define WHITE_DEF 0x40
#define WHITE_MAX 0x7f
__u8 autogain;
#define AUTOGAIN_MIN 0
#define AUTOGAIN_DEF 1
#define AUTOGAIN_MAX 1
__u8 gain; /* rev12a only */
#define GAIN_MIN 0x0
#define GAIN_DEF 0x24
#define GAIN_MAX 0x24
#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}, /* white balance - was 21 */
{0x08, 0x8114}, /* white balance - was 01 */
{0x0e, 0x8112}, /* white balance - was 00 */
{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},
{0x21, 0x8118},
{0x07, 0x8201}, /* windows uses 02 */
{0x08, 0x8200},
{0x01, 0x8200},
{0x00, 0x8114},
{0x01, 0x8114}, /* windows uses 00 */
{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) */
{}
};
static void reg_w_val(struct usb_device *dev, __u16 index, __u8 value)
{
int ret;
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);
PDEBUG(D_USBO, "reg write: 0x%02x:0x%02x", index, value);
if (ret < 0)
PDEBUG(D_ERR, "reg write: error %d", ret);
}
static void write_vector(struct gspca_dev *gspca_dev,
const __u16 data[][2])
{
struct usb_device *dev = gspca_dev->dev;
int i;
i = 0;
while (data[i][1] != 0) {
reg_w_val(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->dev, 0x8801, reg);
reg_w_val(gspca_dev->dev, 0x8805, value);
reg_w_val(gspca_dev->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->dev, 0x8804, 0x92);
reg_w_val(gspca_dev->dev, 0x8801, reg);
reg_w_val(gspca_dev->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) {
PDEBUG(D_PROBE, "Bad vendor / product from device");
return -EINVAL;
}
cam = &gspca_dev->cam;
gspca_dev->nbalt = 7 + 1; /* choose alternate 7 first */
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->brightness = BRIGHTNESS_DEF;
sd->contrast = CONTRAST_DEF;
sd->white = WHITE_DEF;
sd->exposure = EXPOSURE_DEF;
sd->autogain = AUTOGAIN_DEF;
sd->gain = GAIN_DEF;
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)
{
PDEBUG(D_STREAM, "Chip revision: 012a");
init_161rev12A(gspca_dev);
return 0;
}
static int sd_init_72a(struct gspca_dev *gspca_dev)
{
PDEBUG(D_STREAM, "Chip revision: 072a");
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->dev, 0x8112, 0x30);
return 0;
}
/* rev 72a only */
static void setbrightness(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
struct usb_device *dev = gspca_dev->dev;
__u8 value;
value = sd->brightness;
/* offsets for white balance */
reg_w_val(dev, 0x8611, value); /* R */
reg_w_val(dev, 0x8612, value); /* Gr */
reg_w_val(dev, 0x8613, value); /* B */
reg_w_val(dev, 0x8614, value); /* Gb */
}
static void setwhite(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
__u16 white;
__u8 blue, red;
__u16 reg;
/* try to emulate MS-win as possible */
white = sd->white;
red = 0x20 + white * 3 / 8;
blue = 0x90 - white * 5 / 8;
if (sd->chip_revision == Rev012A) {
reg = 0x8614;
} else {
reg = 0x8651;
red += sd->contrast - 0x20;
blue += sd->contrast - 0x20;
}
reg_w_val(gspca_dev->dev, reg, red);
reg_w_val(gspca_dev->dev, reg + 2, blue);
}
static void setcontrast(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
struct usb_device *dev = gspca_dev->dev;
__u8 value;
if (sd->chip_revision != Rev072A)
return;
value = sd->contrast + 0x20;
/* gains for white balance */
setwhite(gspca_dev);
/* reg_w_val(dev, 0x8651, value); * R - done by setwhite */
reg_w_val(dev, 0x8652, value); /* Gr */
/* reg_w_val(dev, 0x8653, value); * B - done by setwhite */
reg_w_val(dev, 0x8654, value); /* Gb */
}
/* rev 12a only */
static void setexposure(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
int expo;
int clock_divider;
/* 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) */
if (sd->exposure < 2048) {
expo = sd->exposure;
clock_divider = 0;
} else {
/* Add 900 to make the 0 setting of the second part of the
exposure equal to the 2047 setting of the first part. */
expo = (sd->exposure - 2048) + 900;
clock_divider = 3;
}
expo |= clock_divider << 11;
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)
{
struct sd *sd = (struct sd *) gspca_dev;
gspca_dev->usb_buf[0] = sd->gain;
gspca_dev->usb_buf[1] = 0;
reg_w_buf(gspca_dev, 0x8335, 2);
}
static void setautogain(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
if (sd->autogain)
sd->ag_cnt = AG_CNT_START;
else
sd->ag_cnt = -1;
}
static int sd_start_12a(struct gspca_dev *gspca_dev)
{
struct usb_device *dev = gspca_dev->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(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(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->dev, 0x8700, 0x8a);
/* 0x8f 0x85 0x27 clock */
reg_w_val(gspca_dev->dev, 0x8112, 0x1e | 0x20);
reg_w_val(gspca_dev->dev, 0x850b, 0x03);
memcpy(gspca_dev->usb_buf, Reg8391, 8);
reg_w_buf(gspca_dev, 0x8391, 8);
reg_w_buf(gspca_dev, 0x8390, 8);
setwhite(gspca_dev);
setautogain(gspca_dev);
/* setgain(gspca_dev); */
setexposure(gspca_dev);
return 0;
}
static int sd_start_72a(struct gspca_dev *gspca_dev)
{
struct usb_device *dev = gspca_dev->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(dev, 0x8700, Clck); /* 0x27 clock */
reg_w_val(dev, 0x8702, 0x81);
reg_w_val(dev, 0x8500, mode); /* mode */
write_sensor_72a(gspca_dev, rev72a_init_sensor2);
setcontrast(gspca_dev);
/* setbrightness(gspca_dev); * fixme: bad values */
setautogain(gspca_dev);
reg_w_val(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->dev, 0x8112, 0x0e);
} else {
reg_w_val(gspca_dev->dev, 0x8112, 0x20);
/* reg_w_val(gspca_dev->dev, 0x8102, 0x00); ?? */
}
}
/* called on streamoff with alt 0 and on disconnect */
static void sd_stop0(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
if (!gspca_dev->present)
return;
if (sd->chip_revision == Rev012A) {
reg_w_val(gspca_dev->dev, 0x8118, 0x29);
reg_w_val(gspca_dev->dev, 0x8114, 0x08);
}
/* reg_w_val(gspca_dev->dev, 0x8114, 0); */
}
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; */
/* PDEBUG(D_CONF,"reading Y %d U %d V %d ",y,u,v); */
if (y < luma_mean - luma_delta ||
y > luma_mean + luma_delta) {
expotimes = i2c_read(gspca_dev, 0x09, 0x10);
pixelclk = 0x0800;
expotimes = expotimes & 0x07ff;
/* PDEBUG(D_PACK,
"Exposition Times 0x%03X Clock 0x%04X ",
expotimes,pixelclk); */
gainG = i2c_read(gspca_dev, 0x35, 0x10);
/* PDEBUG(D_PACK,
"reading Gain register %d", gainG); */
expotimes += (luma_mean - y) >> spring;
gainG += (luma_mean - y) / 50;
/* PDEBUG(D_PACK,
"compute expotimes %d gain %d",
expotimes,gainG); */
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;
case Rev012A:
reg_r(gspca_dev, 0x8330, 2);
if (gspca_dev->usb_buf[1] > 0x08) {
gspca_dev->usb_buf[0] = ++sd->expo12a;
gspca_dev->usb_buf[1] = 0;
reg_w_buf(gspca_dev, 0x8339, 2);
} else if (gspca_dev->usb_buf[1] < 0x02) {
gspca_dev->usb_buf[0] = --sd->expo12a;
gspca_dev->usb_buf[1] = 0;
reg_w_buf(gspca_dev, 0x8339, 2);
}
break;
}
}
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
struct gspca_frame *frame, /* target */
__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 */
frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
data, 0);
if (data[1] & 0x10) {
/* compressed bayer */
gspca_frame_add(gspca_dev, FIRST_PACKET,
frame, 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,
frame, data, len);
}
return;
case 0xff: /* drop (empty mpackets) */
return;
}
gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
}
/* rev 72a only */
static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
sd->brightness = val;
if (gspca_dev->streaming)
setbrightness(gspca_dev);
return 0;
}
static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
*val = sd->brightness;
return 0;
}
/* rev 72a only */
static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
sd->contrast = val;
if (gspca_dev->streaming)
setcontrast(gspca_dev);
return 0;
}
static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
*val = sd->contrast;
return 0;
}
static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
sd->autogain = val;
if (gspca_dev->streaming)
setautogain(gspca_dev);
return 0;
}
static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
*val = sd->autogain;
return 0;
}
static int sd_setwhite(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
sd->white = val;
if (gspca_dev->streaming)
setwhite(gspca_dev);
return 0;
}
static int sd_getwhite(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
*val = sd->white;
return 0;
}
/* rev12a only */
static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
sd->exposure = val;
if (gspca_dev->streaming)
setexposure(gspca_dev);
return 0;
}
static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
*val = sd->exposure;
return 0;
}
/* rev12a only */
static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
sd->gain = val;
if (gspca_dev->streaming)
setgain(gspca_dev);
return 0;
}
static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
*val = sd->gain;
return 0;
}
/* control tables */
static struct ctrl sd_ctrls_12a[] = {
{
{
.id = V4L2_CID_DO_WHITE_BALANCE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "White Balance",
.minimum = WHITE_MIN,
.maximum = WHITE_MAX,
.step = 1,
.default_value = WHITE_DEF,
},
.set = sd_setwhite,
.get = sd_getwhite,
},
{
{
.id = V4L2_CID_EXPOSURE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Exposure",
.minimum = EXPOSURE_MIN,
.maximum = EXPOSURE_MAX,
.step = 1,
.default_value = EXPOSURE_DEF,
},
.set = sd_setexposure,
.get = sd_getexposure,
},
{
{
.id = V4L2_CID_AUTOGAIN,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "Auto Gain",
.minimum = AUTOGAIN_MIN,
.maximum = AUTOGAIN_MAX,
.step = 1,
.default_value = AUTOGAIN_DEF,
},
.set = sd_setautogain,
.get = sd_getautogain,
},
{
{
.id = V4L2_CID_GAIN,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Gain",
.minimum = GAIN_MIN,
.maximum = GAIN_MAX,
.step = 1,
.default_value = GAIN_DEF,
},
.set = sd_setgain,
.get = sd_getgain,
},
};
static struct ctrl sd_ctrls_72a[] = {
{
{
.id = V4L2_CID_DO_WHITE_BALANCE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "White Balance",
.minimum = WHITE_MIN,
.maximum = WHITE_MAX,
.step = 1,
.default_value = WHITE_DEF,
},
.set = sd_setwhite,
.get = sd_getwhite,
},
{
{
.id = V4L2_CID_BRIGHTNESS,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Brightness",
.minimum = BRIGHTNESS_MIN,
.maximum = BRIGHTNESS_MAX,
.step = 1,
.default_value = BRIGHTNESS_DEF,
},
.set = sd_setbrightness,
.get = sd_getbrightness,
},
{
{
.id = V4L2_CID_CONTRAST,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Contrast",
.minimum = CONTRAST_MIN,
.maximum = CONTRAST_MAX,
.step = 1,
.default_value = CONTRAST_DEF,
},
.set = sd_setcontrast,
.get = sd_getcontrast,
},
{
{
.id = V4L2_CID_AUTOGAIN,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "Auto Gain",
.minimum = AUTOGAIN_MIN,
.maximum = AUTOGAIN_MAX,
.step = 1,
.default_value = AUTOGAIN_DEF,
},
.set = sd_setautogain,
.get = sd_getautogain,
},
};
/* sub-driver description */
static const struct sd_desc sd_desc_12a = {
.name = MODULE_NAME,
.ctrls = sd_ctrls_12a,
.nctrls = ARRAY_SIZE(sd_ctrls_12a),
.config = sd_config,
.init = sd_init_12a,
.start = sd_start_12a,
.stopN = sd_stopN,
.stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
/* .dq_callback = do_autogain, * fixme */
};
static const struct sd_desc sd_desc_72a = {
.name = MODULE_NAME,
.ctrls = sd_ctrls_72a,
.nctrls = ARRAY_SIZE(sd_ctrls_72a),
.config = sd_config,
.init = sd_init_72a,
.start = sd_start_72a,
.stopN = sd_stopN,
.stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
.dq_callback = do_autogain,
};
static const struct sd_desc *sd_desc[2] = {
&sd_desc_12a,
&sd_desc_72a
};
/* -- module initialisation -- */
static const __devinitdata 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(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,
#endif
};
/* -- module insert / remove -- */
static int __init sd_mod_init(void)
{
int ret;
ret = usb_register(&sd_driver);
if (ret < 0)
return ret;
PDEBUG(D_PROBE, "registered");
return 0;
}
static void __exit sd_mod_exit(void)
{
usb_deregister(&sd_driver);
PDEBUG(D_PROBE, "deregistered");
}
module_init(sd_mod_init);
module_exit(sd_mod_exit);
