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linux/drivers/media/video/gspca/ov534.c
Antonio Ospite 29b87f0455 V4L/DVB: gspca - ov534: Allow enumerating supported framerates 
Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-02-26 15:10:47 -03:00

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/*
* ov534-ov772x 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, hue, AWB control added
* by Max Thrun <bear24rw@gmail.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.
*
* 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 brightness;
u8 contrast;
u8 gain;
u8 exposure;
u8 redblc;
u8 blueblc;
u8 hue;
u8 autogain;
u8 awb;
s8 sharpness;
u8 hflip;
u8 vflip;
};
/* V4L2 controls supported by the driver */
static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setredblc(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getredblc(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setblueblc(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getblueblc(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val);
static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_sethue(struct gspca_dev *gspca_dev, __s32 val);
static int sd_gethue(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setawb(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getawb(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
static const struct ctrl sd_ctrls[] = {
{ /* 0 */
{
.id = V4L2_CID_BRIGHTNESS,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Brightness",
.minimum = 0,
.maximum = 255,
.step = 1,
#define BRIGHTNESS_DEF 20
.default_value = BRIGHTNESS_DEF,
},
.set = sd_setbrightness,
.get = sd_getbrightness,
},
{ /* 1 */
{
.id = V4L2_CID_CONTRAST,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Contrast",
.minimum = 0,
.maximum = 255,
.step = 1,
#define CONTRAST_DEF 37
.default_value = CONTRAST_DEF,
},
.set = sd_setcontrast,
.get = sd_getcontrast,
},
{ /* 2 */
{
.id = V4L2_CID_GAIN,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Main Gain",
.minimum = 0,
.maximum = 63,
.step = 1,
#define GAIN_DEF 20
.default_value = GAIN_DEF,
},
.set = sd_setgain,
.get = sd_getgain,
},
{ /* 3 */
{
.id = V4L2_CID_EXPOSURE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Exposure",
.minimum = 0,
.maximum = 255,
.step = 1,
#define EXPO_DEF 120
.default_value = EXPO_DEF,
},
.set = sd_setexposure,
.get = sd_getexposure,
},
{ /* 4 */
{
.id = V4L2_CID_RED_BALANCE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Red Balance",
.minimum = 0,
.maximum = 255,
.step = 1,
#define RED_BALANCE_DEF 128
.default_value = RED_BALANCE_DEF,
},
.set = sd_setredblc,
.get = sd_getredblc,
},
{ /* 5 */
{
.id = V4L2_CID_BLUE_BALANCE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Blue Balance",
.minimum = 0,
.maximum = 255,
.step = 1,
#define BLUE_BALANCE_DEF 128
.default_value = BLUE_BALANCE_DEF,
},
.set = sd_setblueblc,
.get = sd_getblueblc,
},
{ /* 6 */
{
.id = V4L2_CID_HUE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Hue",
.minimum = 0,
.maximum = 255,
.step = 1,
#define HUE_DEF 143
.default_value = HUE_DEF,
},
.set = sd_sethue,
.get = sd_gethue,
},
{ /* 7 */
{
.id = V4L2_CID_AUTOGAIN,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "Autogain",
.minimum = 0,
.maximum = 1,
.step = 1,
#define AUTOGAIN_DEF 0
.default_value = AUTOGAIN_DEF,
},
.set = sd_setautogain,
.get = sd_getautogain,
},
#define AWB_IDX 8
{ /* 8 */
{
.id = V4L2_CID_AUTO_WHITE_BALANCE,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "Auto White Balance",
.minimum = 0,
.maximum = 1,
.step = 1,
#define AWB_DEF 0
.default_value = AWB_DEF,
},
.set = sd_setawb,
.get = sd_getawb,
},
{ /* 9 */
{
.id = V4L2_CID_SHARPNESS,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Sharpness",
.minimum = 0,
.maximum = 63,
.step = 1,
#define SHARPNESS_DEF 0
.default_value = SHARPNESS_DEF,
},
.set = sd_setsharpness,
.get = sd_getsharpness,
},
{ /* 10 */
{
.id = V4L2_CID_HFLIP,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "HFlip",
.minimum = 0,
.maximum = 1,
.step = 1,
#define HFLIP_DEF 0
.default_value = HFLIP_DEF,
},
.set = sd_sethflip,
.get = sd_gethflip,
},
{ /* 11 */
{
.id = V4L2_CID_VFLIP,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "VFlip",
.minimum = 0,
.maximum = 1,
.step = 1,
#define VFLIP_DEF 0
.default_value = VFLIP_DEF,
},
.set = sd_setvflip,
.get = sd_getvflip,
},
};
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 u8 qvga_rates[] = {125, 100, 75, 60, 50, 40, 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),
},
};
static const u8 bridge_init[][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[][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, 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 }, /* De-noise threshold */
{ 0x0c, 0xd0 }
};
static const u8 bridge_start_vga[][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[][2] = {
{0x12, 0x00},
{0x17, 0x26},
{0x18, 0xa0},
{0x19, 0x07},
{0x1a, 0xf0},
{0x29, 0xa0},
{0x2c, 0xf0},
{0x65, 0x20},
};
static const u8 bridge_start_qvga[][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[][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;
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++;
}
}
/* 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 */
{125, 0x02, 0x81, 0x02},
{100, 0x02, 0xc1, 0x04},
{75, 0x03, 0xc1, 0x04},
{60, 0x04, 0xc1, 0x04},
{50, 0x02, 0x41, 0x04},
{40, 0x03, 0x41, 0x04},
{30, 0x04, 0x41, 0x04},
};
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);
PDEBUG(D_PROBE, "frame_rate: %d", r->fps);
}
static void setbrightness(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
sccb_reg_write(gspca_dev, 0x9B, sd->brightness);
}
static void setcontrast(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
sccb_reg_write(gspca_dev, 0x9C, sd->contrast);
}
static void setgain(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 val;
val = sd->gain;
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 void setexposure(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 val;
val = sd->exposure;
sccb_reg_write(gspca_dev, 0x08, val >> 7);
sccb_reg_write(gspca_dev, 0x10, val << 1);
}
static void setredblc(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
sccb_reg_write(gspca_dev, 0x43, sd->redblc);
}
static void setblueblc(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
sccb_reg_write(gspca_dev, 0x42, sd->blueblc);
}
static void sethue(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
sccb_reg_write(gspca_dev, 0x01, sd->hue);
}
static void setautogain(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
if (sd->autogain) {
sccb_reg_write(gspca_dev, 0x13, 0xf7); /* AGC,AEC,AWB ON */
sccb_reg_write(gspca_dev, 0x64,
sccb_reg_read(gspca_dev, 0x64) | 0x03);
} else {
sccb_reg_write(gspca_dev, 0x13, 0xf0); /* AGC,AEC,AWB OFF */
sccb_reg_write(gspca_dev, 0x64,
sccb_reg_read(gspca_dev, 0x64) & 0xfc);
}
}
static void setawb(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
if (sd->awb)
sccb_reg_write(gspca_dev, 0x63, 0xe0); /* AWB on */
else
sccb_reg_write(gspca_dev, 0x63, 0xaa); /* AWB off */
}
static void setsharpness(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 val;
val = sd->sharpness;
sccb_reg_write(gspca_dev, 0x91, val); /* vga noise */
sccb_reg_write(gspca_dev, 0x8e, val); /* qvga noise */
}
static void sethflip(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
if (sd->hflip == 0)
sccb_reg_write(gspca_dev, 0x0c,
sccb_reg_read(gspca_dev, 0x0c) | 0x40);
else
sccb_reg_write(gspca_dev, 0x0c,
sccb_reg_read(gspca_dev, 0x0c) & 0xbf);
}
static void setvflip(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
if (sd->vflip == 0)
sccb_reg_write(gspca_dev, 0x0c,
sccb_reg_read(gspca_dev, 0x0c) | 0x80);
else
sccb_reg_write(gspca_dev, 0x0c,
sccb_reg_read(gspca_dev, 0x0c) & 0x7f);
}
/* 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);
cam->mode_framerates = ov772x_framerates;
cam->bulk = 1;
cam->bulk_size = 16384;
cam->bulk_nurbs = 2;
sd->frame_rate = 30;
sd->brightness = BRIGHTNESS_DEF;
sd->contrast = CONTRAST_DEF;
sd->gain = GAIN_DEF;
sd->exposure = EXPO_DEF;
sd->redblc = RED_BALANCE_DEF;
sd->blueblc = BLUE_BALANCE_DEF;
sd->hue = HUE_DEF;
#if AUTOGAIN_DEF != 0
sd->autogain = AUTOGAIN_DEF;
#else
gspca_dev->ctrl_inac |= (1 << AWB_IDX);
#endif
#if AWB_DEF != 0
sd->awb = AWB_DEF
#endif
#if SHARPNESS_DEF != 0
sd->sharpness = SHARPNESS_DEF;
#endif
#if HFLIP_DEF != 0
sd->hflip = HFLIP_DEF;
#endif
#if VFLIP_DEF != 0
sd->vflip = VFLIP_DEF;
#endif
return 0;
}
/* this function is called at probe and resume time */
static int sd_init(struct gspca_dev *gspca_dev)
{
u16 sensor_id;
/* 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);
PDEBUG(D_PROBE, "Sensor ID: %04x", sensor_id);
/* initialize */
reg_w_array(gspca_dev, bridge_init,
ARRAY_SIZE(bridge_init));
ov534_set_led(gspca_dev, 1);
sccb_w_array(gspca_dev, sensor_init,
ARRAY_SIZE(sensor_init));
ov534_reg_write(gspca_dev, 0xe0, 0x09);
ov534_set_led(gspca_dev, 0);
set_frame_rate(gspca_dev);
return 0;
}
static int sd_start(struct gspca_dev *gspca_dev)
{
int mode;
mode = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
if (mode != 0) { /* 320x240 */
reg_w_array(gspca_dev, bridge_start_qvga,
ARRAY_SIZE(bridge_start_qvga));
sccb_w_array(gspca_dev, sensor_start_qvga,
ARRAY_SIZE(sensor_start_qvga));
} else { /* 640x480 */
reg_w_array(gspca_dev, bridge_start_vga,
ARRAY_SIZE(bridge_start_vga));
sccb_w_array(gspca_dev, sensor_start_vga,
ARRAY_SIZE(sensor_start_vga));
}
set_frame_rate(gspca_dev);
setautogain(gspca_dev);
setawb(gspca_dev);
setgain(gspca_dev);
setredblc(gspca_dev);
setblueblc(gspca_dev);
sethue(gspca_dev);
setexposure(gspca_dev);
setbrightness(gspca_dev);
setcontrast(gspca_dev);
setsharpness(gspca_dev);
setvflip(gspca_dev);
sethflip(gspca_dev);
ov534_set_led(gspca_dev, 1);
ov534_reg_write(gspca_dev, 0xe0, 0x00);
return 0;
}
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;
do {
len = min(remaining_len, 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) {
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) {
struct gspca_frame *frame;
sd->last_pts = 0;
frame = gspca_get_i_frame(gspca_dev);
if (frame == NULL)
goto discard;
if (frame->data_end - frame->data !=
gspca_dev->width * gspca_dev->height * 2) {
PDEBUG(D_PACK, "short frame");
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);
}
/* controls */
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;
}
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;
}
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;
}
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_setredblc(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
sd->redblc = val;
if (gspca_dev->streaming)
setredblc(gspca_dev);
return 0;
}
static int sd_getredblc(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
*val = sd->redblc;
return 0;
}
static int sd_setblueblc(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
sd->blueblc = val;
if (gspca_dev->streaming)
setblueblc(gspca_dev);
return 0;
}
static int sd_getblueblc(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
*val = sd->blueblc;
return 0;
}
static int sd_sethue(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
sd->hue = val;
if (gspca_dev->streaming)
sethue(gspca_dev);
return 0;
}
static int sd_gethue(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
*val = sd->hue;
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) {
/* the auto white balance control works only
* when auto gain is set */
if (val)
gspca_dev->ctrl_inac &= ~(1 << AWB_IDX);
else
gspca_dev->ctrl_inac |= (1 << AWB_IDX);
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_setawb(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
sd->awb = val;
if (gspca_dev->streaming)
setawb(gspca_dev);
return 0;
}
static int sd_getawb(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
*val = sd->awb;
return 0;
}
static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
sd->sharpness = val;
if (gspca_dev->streaming)
setsharpness(gspca_dev);
return 0;
}
static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
*val = sd->sharpness;
return 0;
}
static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
sd->hflip = val;
if (gspca_dev->streaming)
sethflip(gspca_dev);
return 0;
}
static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
*val = sd->hflip;
return 0;
}
static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
sd->vflip = val;
if (gspca_dev->streaming)
setvflip(gspca_dev);
return 0;
}
static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
*val = sd->vflip;
return 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;
if (gspca_dev->streaming)
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(0x1415, 0x2000)},
{}
};
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);
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