/*
* ov534 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/
*
* 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 "ov534"
#include "gspca.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
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 */
__u32 last_pts;
u16 last_fid;
u8 frame_rate;
u8 sensor;
#define SENSOR_OV772X 0
#define SENSOR_OV965X 1
};
/* V4L2 controls supported by the driver */
static struct ctrl sd_ctrls[] = {
};
static const struct v4l2_pix_format vga_mode[] = {
{640, 480, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
.bytesperline = 640 * 2,
.sizeimage = 640 * 480 * 2,
.colorspace = V4L2_COLORSPACE_JPEG,
.priv = 0},
};
static const u8 bridge_init_ov722x[][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_ov722x[][2] = {
{ 0x12, 0x80 },
{ 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, 0xe0 },
{ 0x64, 0xff },
{ 0x66, 0x00 },
{ 0x13, 0xf0 },
{ 0x0d, 0x41 },
{ 0x0f, 0xc5 },
{ 0x14, 0x11 },
{ 0x22, 0x7f },
{ 0x23, 0x03 },
{ 0x24, 0x40 },
{ 0x25, 0x30 },
{ 0x26, 0xa1 },
{ 0x2a, 0x00 },
{ 0x2b, 0x00 },
{ 0x6b, 0xaa },
{ 0x13, 0xff },
{ 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, 0x04 },
{ 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 },
{ 0x0c, 0xd0 }
};
static const u8 bridge_init_ov965x[][2] = {
{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, 0x0a},
{0x1d, 0x48},
{0xc0, 0x50},
{0xc1, 0x3c},
{0x34, 0x05},
{0xc2, 0x0c},
{0xc3, 0xf9},
{0x34, 0x05},
{0xe7, 0x2e},
{0x31, 0xf9},
{0x35, 0x02},
{0xd9, 0x10},
{0x25, 0x42},
{0x94, 0x11},
};
static const u8 sensor_init_ov965x[][2] = {
{0x12, 0x80}, /* com7 - reset */
{0x00, 0x00}, /* gain */
{0x01, 0x80}, /* blue */
{0x02, 0x80}, /* red */
{0x03, 0x1b}, /* vref */
{0x04, 0x03}, /* com1 - exposure low bits */
{0x0b, 0x57}, /* ver */
{0x0e, 0x61}, /* com5 */
{0x0f, 0x42}, /* com6 */
{0x11, 0x00}, /* clkrc */
{0x12, 0x02}, /* com7 */
{0x13, 0xe7}, /* com8 - everything (AGC, AWB and AEC) */
{0x14, 0x28}, /* com9 */
{0x16, 0x24}, /* rsvd16 */
{0x17, 0x1d}, /* hstart*/
{0x18, 0xbd}, /* hstop */
{0x19, 0x01}, /* vstrt */
{0x1a, 0x81}, /* vstop*/
{0x1e, 0x04}, /* mvfp */
{0x24, 0x3c}, /* aew */
{0x25, 0x36}, /* aeb */
{0x26, 0x71}, /* vpt */
{0x27, 0x08}, /* bbias */
{0x28, 0x08}, /* gbbias */
{0x29, 0x15}, /* gr com */
{0x2a, 0x00},
{0x2b, 0x00},
{0x2c, 0x08}, /* rbias */
{0x32, 0xff}, /* href */
{0x33, 0x00}, /* chlf */
{0x34, 0x3f}, /* arblm */
{0x35, 0x00}, /* rsvd35 */
{0x36, 0xf8}, /* rsvd36 */
{0x38, 0x72}, /* acom38 */
{0x39, 0x57}, /* ofon */
{0x3a, 0x80}, /* tslb */
{0x3b, 0xc4},
{0x3d, 0x99}, /* com13 */
{0x3f, 0xc1},
{0x40, 0xc0}, /* com15 */
{0x41, 0x40}, /* com16 */
{0x42, 0xc0},
{0x43, 0x0a},
{0x44, 0xf0},
{0x45, 0x46},
{0x46, 0x62},
{0x47, 0x2a},
{0x48, 0x3c},
{0x4a, 0xfc},
{0x4b, 0xfc},
{0x4c, 0x7f},
{0x4d, 0x7f},
{0x4e, 0x7f},
{0x4f, 0x98},
{0x50, 0x98},
{0x51, 0x00},
{0x52, 0x28},
{0x53, 0x70},
{0x54, 0x98},
{0x58, 0x1a},
{0x59, 0x85},
{0x5a, 0xa9},
{0x5b, 0x64},
{0x5c, 0x84},
{0x5d, 0x53},
{0x5e, 0x0e},
{0x5f, 0xf0},
{0x60, 0xf0},
{0x61, 0xf0},
{0x62, 0x00}, /* lcc1 */
{0x63, 0x00}, /* lcc2 */
{0x64, 0x02}, /* lcc3 */
{0x65, 0x16}, /* lcc4 */
{0x66, 0x01}, /* lcc5 */
{0x69, 0x02}, /* hv */
{0x6b, 0x5a}, /* dbvl */
{0x6c, 0x04},
{0x6d, 0x55},
{0x6e, 0x00},
{0x6f, 0x9d},
{0x70, 0x21},
{0x71, 0x78},
{0x72, 0x00},
{0x73, 0x01},
{0x74, 0x3a},
{0x75, 0x35},
{0x76, 0x01},
{0x77, 0x02},
{0x7a, 0x12},
{0x7b, 0x08},
{0x7c, 0x16},
{0x7d, 0x30},
{0x7e, 0x5e},
{0x7f, 0x72},
{0x80, 0x82},
{0x81, 0x8e},
{0x82, 0x9a},
{0x83, 0xa4},
{0x84, 0xac},
{0x85, 0xb8},
{0x86, 0xc3},
{0x87, 0xd6},
{0x88, 0xe6},
{0x89, 0xf2},
{0x8a, 0x03},
{0x8c, 0x89},
{0x14, 0x28}, /* com9 */
{0x90, 0x7d},
{0x91, 0x7b},
{0x9d, 0x03},
{0x9e, 0x04},
{0x9f, 0x7a},
{0xa0, 0x79},
{0xa1, 0x40}, /* aechm */
{0xa4, 0x50},
{0xa5, 0x68}, /* com26 */
{0xa6, 0x4a},
{0xa8, 0xc1}, /* acoma8 */
{0xa9, 0xef}, /* acoma9 */
{0xaa, 0x92},
{0xab, 0x04},
{0xac, 0x80},
{0xad, 0x80},
{0xae, 0x80},
{0xaf, 0x80},
{0xb2, 0xf2},
{0xb3, 0x20},
{0xb4, 0x20},
{0xb5, 0x00},
{0xb6, 0xaf},
{0xbb, 0xae},
{0xbc, 0x7f},
{0xdb, 0x7f},
{0xbe, 0x7f},
{0xbf, 0x7f},
{0xc0, 0xe2},
{0xc1, 0xc0},
{0xc2, 0x01},
{0xc3, 0x4e},
{0xc6, 0x85},
{0xc7, 0x80},
{0xc9, 0xe0},
{0xca, 0xe8},
{0xcb, 0xf0},
{0xcc, 0xd8},
{0xcd, 0xf1},
{0x4f, 0x98},
{0x50, 0x98},
{0x51, 0x00},
{0x52, 0x28},
{0x53, 0x70},
{0x54, 0x98},
{0x58, 0x1a},
{0xff, 0x41}, /* read 41, write ff 00 */
{0x41, 0x40}, /* com16 */
{0xc5, 0x03},
{0x6a, 0x02},
{0x12, 0x62}, /* com7 - VGA + CIF */
{0x36, 0xfa}, /* rsvd36 */
{0x69, 0x0a}, /* hv */
{0x8c, 0x89}, /* com22 */
{0x14, 0x28}, /* com9 */
{0x3e, 0x0c},
{0x41, 0x40}, /* com16 */
{0x72, 0x00},
{0x73, 0x00},
{0x74, 0x3a},
{0x75, 0x35},
{0x76, 0x01},
{0xc7, 0x80},
{0x03, 0x12}, /* vref */
{0x17, 0x16}, /* hstart */
{0x18, 0x02}, /* hstop */
{0x19, 0x01}, /* vstrt */
{0x1a, 0x3d}, /* vstop */
{0x32, 0xff}, /* href */
{0xc0, 0xaa},
};
static const u8 bridge_init_ov965x_2[][2] = {
{0x94, 0xaa},
{0xf1, 0x60},
{0xe5, 0x04},
{0xc0, 0x50},
{0xc1, 0x3c},
{0x8c, 0x00},
{0x8d, 0x1c},
{0x34, 0x05},
{0xc2, 0x0c},
{0xc3, 0xf9},
{0xda, 0x01},
{0x50, 0x00},
{0x51, 0xa0},
{0x52, 0x3c},
{0x53, 0x00},
{0x54, 0x00},
{0x55, 0x00},
{0x57, 0x00},
{0x5c, 0x00},
{0x5a, 0xa0},
{0x5b, 0x78},
{0x35, 0x02},
{0xd9, 0x10},
{0x94, 0x11},
};
static const u8 sensor_init_ov965x_2[][2] = {
{0x3b, 0xc4},
{0x1e, 0x04}, /* mvfp */
{0x13, 0xe0}, /* com8 */
{0x00, 0x00}, /* gain */
{0x13, 0xe7}, /* com8 - everything (AGC, AWB and AEC) */
{0x11, 0x03}, /* clkrc */
{0x6b, 0x5a}, /* dblv */
{0x6a, 0x05},
{0xc5, 0x07},
{0xa2, 0x4b},
{0xa3, 0x3e},
{0x2d, 0x00},
{0xff, 0x42}, /* read 42, write ff 00 */
{0x42, 0xc0},
{0x2d, 0x00},
{0xff, 0x42}, /* read 42, write ff 00 */
{0x42, 0xc1},
{0x3f, 0x01},
{0xff, 0x42}, /* read 42, write ff 00 */
{0x42, 0xc1},
{0x4f, 0x98},
{0x50, 0x98},
{0x51, 0x00},
{0x52, 0x28},
{0x53, 0x70},
{0x54, 0x98},
{0x58, 0x1a},
{0xff, 0x41}, /* read 41, write ff 00 */
{0x41, 0x40}, /* com16 */
{0x56, 0x40},
{0x55, 0x8f},
{0x10, 0x25}, /* aech - exposure high bits */
{0xff, 0x13}, /* read 13, write ff 00 */
{0x13, 0xe7}, /* com8 - everything (AGC, AWB and AEC) */
};
static const u8 bridge_start_ov965x[][2] = {
{0xc2, 0x4c},
{0xc3, 0xf9},
{0x50, 0x00},
{0x51, 0xa0},
{0x52, 0x78},
{0x53, 0x00},
{0x54, 0x00},
{0x55, 0x00},
{0x57, 0x00},
{0x5c, 0x00},
{0x5a, 0x28},
{0x5b, 0x1e},
{0x35, 0x00},
{0xd9, 0x21},
{0x94, 0x11},
};
static const u8 sensor_start_ov965x[][2] = {
{0x3b, 0xe4},
{0x1e, 0x04}, /* mvfp */
{0x13, 0xe0}, /* com8 */
{0x00, 0x00},
{0x13, 0xe7}, /* com8 - everything (AGC, AWB and AEC) */
{0x11, 0x01}, /* clkrc */
{0x6b, 0x5a}, /* dblv */
{0x6a, 0x02},
{0xc5, 0x03},
{0xa2, 0x96},
{0xa3, 0x7d},
{0xff, 0x13}, /* read 13, write ff 00 */
{0x13, 0xe7},
{0x3a, 0x80},
{0xff, 0x42}, /* read 42, write ff 00 */
{0x42, 0xc1},
};
static void ov534_reg_write(struct gspca_dev *gspca_dev, u16 reg, u8 val)
{
struct usb_device *udev = gspca_dev->dev;
int ret;
PDEBUG(D_USBO, "reg=0x%04x, val=0%02x", 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)
PDEBUG(D_ERR, "write failed");
}
static u8 ov534_reg_read(struct gspca_dev *gspca_dev, u16 reg)
{
struct usb_device *udev = gspca_dev->dev;
int ret;
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);
PDEBUG(D_USBI, "reg=0x%04x, data=0x%02x", reg, gspca_dev->usb_buf[0]);
if (ret < 0)
PDEBUG(D_ERR, "read failed");
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;
PDEBUG(D_CONF, "led status: %d", 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++) {
data = ov534_reg_read(gspca_dev, OV534_REG_STATUS);
switch (data) {
case 0x00:
return 1;
case 0x04:
return 0;
case 0x03:
break;
default:
PDEBUG(D_ERR, "sccb status 0x%02x, attempt %d/5",
data, i + 1);
}
}
return 0;
}
static void sccb_reg_write(struct gspca_dev *gspca_dev, u8 reg, u8 val)
{
PDEBUG(D_USBO, "reg: 0x%02x, val: 0x%02x", 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))
PDEBUG(D_ERR, "sccb_reg_write failed");
}
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))
PDEBUG(D_ERR, "sccb_reg_read failed 1");
ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_READ_2);
if (!sccb_check_status(gspca_dev))
PDEBUG(D_ERR, "sccb_reg_read failed 2");
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++;
}
}
/* set framerate */
static void ov534_set_frame_rate(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
int fr = sd->frame_rate;
switch (fr) {
case 50:
sccb_reg_write(gspca_dev, 0x11, 0x01);
sccb_reg_write(gspca_dev, 0x0d, 0x41);
ov534_reg_write(gspca_dev, 0xe5, 0x02);
break;
case 40:
sccb_reg_write(gspca_dev, 0x11, 0x02);
sccb_reg_write(gspca_dev, 0x0d, 0xc1);
ov534_reg_write(gspca_dev, 0xe5, 0x04);
break;
/* case 30: */
default:
fr = 30;
sccb_reg_write(gspca_dev, 0x11, 0x04);
sccb_reg_write(gspca_dev, 0x0d, 0x81);
ov534_reg_write(gspca_dev, 0xe5, 0x02);
break;
case 15:
sccb_reg_write(gspca_dev, 0x11, 0x03);
sccb_reg_write(gspca_dev, 0x0d, 0x41);
ov534_reg_write(gspca_dev, 0xe5, 0x04);
break;
}
sd->frame_rate = fr;
PDEBUG(D_PROBE, "frame_rate: %d", fr);
}
/* 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;
sd->sensor = id->driver_info;
cam = &gspca_dev->cam;
cam->cam_mode = vga_mode;
cam->nmodes = ARRAY_SIZE(vga_mode);
cam->bulk_size = 16384;
cam->bulk_nurbs = 2;
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 u8 sensor_addr[2] = {
0x42, /* 0 SENSOR_OV772X */
0x60, /* 1 SENSOR_OV965X */
};
/* 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,
sensor_addr[sd->sensor]);
/* 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);
PDEBUG(D_PROBE, "Sensor ID: %04x", sensor_id);
/* initialize */
switch (sd->sensor) {
case SENSOR_OV772X:
reg_w_array(gspca_dev, bridge_init_ov722x,
ARRAY_SIZE(bridge_init_ov722x));
ov534_set_led(gspca_dev, 1);
sccb_w_array(gspca_dev, sensor_init_ov722x,
ARRAY_SIZE(sensor_init_ov722x));
ov534_reg_write(gspca_dev, 0xe0, 0x09);
ov534_set_led(gspca_dev, 0);
ov534_set_frame_rate(gspca_dev);
break;
default:
/* case SENSOR_OV965X: */
reg_w_array(gspca_dev, bridge_init_ov965x,
ARRAY_SIZE(bridge_init_ov965x));
sccb_w_array(gspca_dev, sensor_init_ov965x,
ARRAY_SIZE(sensor_init_ov965x));
reg_w_array(gspca_dev, bridge_init_ov965x_2,
ARRAY_SIZE(bridge_init_ov965x_2));
sccb_w_array(gspca_dev, sensor_init_ov965x_2,
ARRAY_SIZE(sensor_init_ov965x_2));
ov534_reg_write(gspca_dev, 0xe0, 0x00);
ov534_reg_write(gspca_dev, 0xe0, 0x01);
ov534_set_led(gspca_dev, 0);
ov534_reg_write(gspca_dev, 0xe0, 0x00);
}
return 0;
}
static int sd_start(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
switch (sd->sensor) {
case SENSOR_OV772X:
ov534_set_led(gspca_dev, 1);
ov534_reg_write(gspca_dev, 0xe0, 0x00);
break;
default:
/* case SENSOR_OV965X: */
reg_w_array(gspca_dev, bridge_start_ov965x,
ARRAY_SIZE(bridge_start_ov965x));
sccb_w_array(gspca_dev, sensor_start_ov965x,
ARRAY_SIZE(sensor_start_ov965x));
ov534_reg_write(gspca_dev, 0xe0, 0x00);
ov534_set_led(gspca_dev, 1);
/*fixme: other sensor start omitted*/
}
return 0;
}
static void sd_stopN(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
switch (sd->sensor) {
case SENSOR_OV772X:
ov534_reg_write(gspca_dev, 0xe0, 0x09);
ov534_set_led(gspca_dev, 0);
break;
default:
/* case SENSOR_OV965X: */
ov534_reg_write(gspca_dev, 0xe0, 0x01);
ov534_set_led(gspca_dev, 0);
ov534_reg_write(gspca_dev, 0xe0, 0x00);
break;
}
}
/* 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, struct gspca_frame *frame,
__u8 *data, int len)
{
struct sd *sd = (struct sd *) gspca_dev;
__u32 this_pts;
u16 this_fid;
int remaining_len = len;
do {
len = min(remaining_len, 2040); /*fixme: was 2048*/
/* 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) {
PDEBUG(D_PACK, "bad header");
goto discard;
}
/* Check errors */
if (data[1] & UVC_STREAM_ERR) {
PDEBUG(D_PACK, "payload error");
goto discard;
}
/* Extract PTS and FID */
if (!(data[1] & UVC_STREAM_PTS)) {
PDEBUG(D_PACK, "PTS not present");
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) {
gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
NULL, 0);
sd->last_pts = this_pts;
sd->last_fid = this_fid;
}
/* Add the data from this payload */
gspca_frame_add(gspca_dev, INTER_PACKET, frame,
data + 12, len - 12);
/* If this packet is marked as EOF, end the frame */
if (data[1] & UVC_STREAM_EOF) {
sd->last_pts = 0;
if (frame->data_end - frame->data !=
gspca_dev->width * gspca_dev->height * 2) {
PDEBUG(D_PACK, "short frame");
goto discard;
}
frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
NULL, 0);
}
/* Done this payload */
goto scan_next;
discard:
/* Discard data until a new frame starts. */
gspca_frame_add(gspca_dev, DISCARD_PACKET, frame, NULL, 0);
scan_next:
remaining_len -= len;
data += len;
} while (remaining_len > 0);
}
/* get stream parameters (framerate) */
static int 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;
if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
cp->capability |= V4L2_CAP_TIMEPERFRAME;
tpf->numerator = 1;
tpf->denominator = sd->frame_rate;
return 0;
}
/* set stream parameters (framerate) */
static int 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 (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
/* Set requested framerate */
sd->frame_rate = tpf->denominator / tpf->numerator;
ov534_set_frame_rate(gspca_dev);
/* Return the actual framerate */
tpf->numerator = 1;
tpf->denominator = sd->frame_rate;
return 0;
}
/* sub-driver description */
static const struct sd_desc sd_desc = {
.name = MODULE_NAME,
.ctrls = sd_ctrls,
.nctrls = ARRAY_SIZE(sd_ctrls),
.config = sd_config,
.init = sd_init,
.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 __devinitdata struct usb_device_id device_table[] = {
{USB_DEVICE(0x06f8, 0x3003), .driver_info = SENSOR_OV965X},
{USB_DEVICE(0x1415, 0x2000), .driver_info = SENSOR_OV772X},
{}
};
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,
#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);
