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android_kernel_xiaomi_sm8350/drivers/media/video/gspca/pac7311.c
Jean-Francois Moine cebf3b67f7 V4L/DVB (8604): gspca: Fix of "scheduling while atomic" crash. 
The crash is due to USB exchanges done at interrupt level.
These exchanges, tied to autogain, are now done by the application.
Also, there is a fix about autogain start.
Concerned subdrivers: etoms, pac7311, sonixj and spca561.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-08-06 06:57:25 -03:00

767 lines
22 KiB
C
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/*
* Pixart PAC7311 library
* Copyright (C) 2005 Thomas Kaiser thomas@kaiser-linux.li
*
* 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 "pac7311"
#include "gspca.h"
MODULE_AUTHOR("Thomas Kaiser thomas@kaiser-linux.li");
MODULE_DESCRIPTION("Pixart PAC7311");
MODULE_LICENSE("GPL");
/* specific webcam descriptor */
struct sd {
struct gspca_dev gspca_dev; /* !! must be the first item */
int lum_sum;
atomic_t avg_lum;
atomic_t do_gain;
unsigned char brightness;
unsigned char contrast;
unsigned char colors;
unsigned char autogain;
char ffseq;
signed char ag_cnt;
#define AG_CNT_START 13
};
/* V4L2 controls supported by the driver */
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 int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getcolors(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 struct ctrl sd_ctrls[] = {
{
{
.id = V4L2_CID_BRIGHTNESS,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Brightness",
.minimum = 0,
#define BRIGHTNESS_MAX 0x20
.maximum = BRIGHTNESS_MAX,
.step = 1,
#define BRIGHTNESS_DEF 0x10
.default_value = BRIGHTNESS_DEF,
},
.set = sd_setbrightness,
.get = sd_getbrightness,
},
{
{
.id = V4L2_CID_CONTRAST,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Contrast",
.minimum = 0,
.maximum = 255,
.step = 1,
#define CONTRAST_DEF 127
.default_value = CONTRAST_DEF,
},
.set = sd_setcontrast,
.get = sd_getcontrast,
},
{
{
.id = V4L2_CID_SATURATION,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Color",
.minimum = 0,
.maximum = 255,
.step = 1,
#define COLOR_DEF 127
.default_value = COLOR_DEF,
},
.set = sd_setcolors,
.get = sd_getcolors,
},
{
{
.id = V4L2_CID_AUTOGAIN,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "Auto Gain",
.minimum = 0,
.maximum = 1,
.step = 1,
#define AUTOGAIN_DEF 1
.default_value = AUTOGAIN_DEF,
},
.set = sd_setautogain,
.get = sd_getautogain,
},
};
static struct v4l2_pix_format vga_mode[] = {
{160, 120, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
.bytesperline = 160,
.sizeimage = 160 * 120 * 3 / 8 + 590,
.colorspace = V4L2_COLORSPACE_JPEG,
.priv = 2},
{320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
.bytesperline = 320,
.sizeimage = 320 * 240 * 3 / 8 + 590,
.colorspace = V4L2_COLORSPACE_JPEG,
.priv = 1},
{640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
.bytesperline = 640,
.sizeimage = 640 * 480 * 3 / 8 + 590,
.colorspace = V4L2_COLORSPACE_JPEG,
.priv = 0},
};
#define PAC7311_JPEG_HEADER_SIZE (sizeof pac7311_jpeg_header) /* (594) */
static const __u8 pac7311_jpeg_header[] = {
0xff, 0xd8,
0xff, 0xe0, 0x00, 0x03, 0x20,
0xff, 0xc0, 0x00, 0x11, 0x08,
0x01, 0xe0, /* 12: height */
0x02, 0x80, /* 14: width */
0x03, /* 16 */
0x01, 0x21, 0x00,
0x02, 0x11, 0x01,
0x03, 0x11, 0x01,
0xff, 0xdb, 0x00, 0x84,
0x00, 0x10, 0x0b, 0x0c, 0x0e, 0x0c, 0x0a, 0x10, 0x0e, 0x0d,
0x0e, 0x12, 0x11, 0x10, 0x13, 0x18, 0x28, 0x1a, 0x18, 0x16,
0x16, 0x18, 0x31, 0x23, 0x25, 0x1d, 0x28, 0x3a, 0x33, 0x3d,
0x3c, 0x39, 0x33, 0x38, 0x37, 0x40, 0x48, 0x5c, 0x4e, 0x40,
0x44, 0x57, 0x45, 0x37, 0x38, 0x50, 0x6d, 0x51, 0x57, 0x5f,
0x62, 0x67, 0x68, 0x67, 0x3e, 0x4d, 0x71, 0x79, 0x70, 0x64,
0x78, 0x5c, 0x65, 0x67, 0x63, 0x01, 0x11, 0x12, 0x12, 0x18,
0x15, 0x18, 0x2f, 0x1a, 0x1a, 0x2f, 0x63, 0x42, 0x38, 0x42,
0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
0xff, 0xc4, 0x01, 0xa2, 0x00, 0x00, 0x01, 0x05, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
0x09, 0x0a, 0x0b, 0x10, 0x00, 0x02, 0x01, 0x03, 0x03, 0x02,
0x04, 0x03, 0x05, 0x05, 0x04, 0x04, 0x00, 0x00, 0x01, 0x7d,
0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21, 0x31,
0x41, 0x06, 0x13, 0x51, 0x61, 0x07, 0x22, 0x71, 0x14, 0x32,
0x81, 0x91, 0xa1, 0x08, 0x23, 0x42, 0xb1, 0xc1, 0x15, 0x52,
0xd1, 0xf0, 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0a, 0x16,
0x17, 0x18, 0x19, 0x1a, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a,
0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x43, 0x44, 0x45,
0x46, 0x47, 0x48, 0x49, 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57,
0x58, 0x59, 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69,
0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x83,
0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x92, 0x93, 0x94,
0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5,
0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6,
0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8,
0xd9, 0xda, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8,
0xe9, 0xea, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8,
0xf9, 0xfa, 0x01, 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a,
0x0b, 0x11, 0x00, 0x02, 0x01, 0x02, 0x04, 0x04, 0x03, 0x04,
0x07, 0x05, 0x04, 0x04, 0x00, 0x01, 0x02, 0x77, 0x00, 0x01,
0x02, 0x03, 0x11, 0x04, 0x05, 0x21, 0x31, 0x06, 0x12, 0x41,
0x51, 0x07, 0x61, 0x71, 0x13, 0x22, 0x32, 0x81, 0x08, 0x14,
0x42, 0x91, 0xa1, 0xb1, 0xc1, 0x09, 0x23, 0x33, 0x52, 0xf0,
0x15, 0x62, 0x72, 0xd1, 0x0a, 0x16, 0x24, 0x34, 0xe1, 0x25,
0xf1, 0x17, 0x18, 0x19, 0x1a, 0x26, 0x27, 0x28, 0x29, 0x2a,
0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x43, 0x44, 0x45, 0x46,
0x47, 0x48, 0x49, 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
0x59, 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a,
0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x82, 0x83,
0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x92, 0x93, 0x94,
0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5,
0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6,
0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8,
0xd9, 0xda, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9,
0xea, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa,
0xff, 0xda, 0x00, 0x0c, 0x03, 0x01, 0x00, 0x02, 0x11, 0x03,
0x11, 0x00, 0x3f, 0x00
};
static void reg_w_buf(struct gspca_dev *gspca_dev,
__u16 index,
const char *buffer, __u16 len)
{
memcpy(gspca_dev->usb_buf, buffer, len);
usb_control_msg(gspca_dev->dev,
usb_sndctrlpipe(gspca_dev->dev, 0),
1, /* request */
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0, /* value */
index, gspca_dev->usb_buf, len,
500);
}
static __u8 reg_r(struct gspca_dev *gspca_dev,
__u16 index)
{
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, 1,
500);
return gspca_dev->usb_buf[0];
}
static void reg_w(struct gspca_dev *gspca_dev,
__u16 index,
__u8 value)
{
gspca_dev->usb_buf[0] = value;
usb_control_msg(gspca_dev->dev,
usb_sndctrlpipe(gspca_dev->dev, 0),
0, /* request */
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
value, index, gspca_dev->usb_buf, 1,
500);
}
/* 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;
PDEBUG(D_CONF, "Find Sensor PAC7311");
reg_w(gspca_dev, 0x78, 0x40); /* Bit_0=start stream, Bit_7=LED */
reg_w(gspca_dev, 0x78, 0x40); /* Bit_0=start stream, Bit_7=LED */
reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_7=LED */
reg_w(gspca_dev, 0xff, 0x04);
reg_w(gspca_dev, 0x27, 0x80);
reg_w(gspca_dev, 0x28, 0xca);
reg_w(gspca_dev, 0x29, 0x53);
reg_w(gspca_dev, 0x2a, 0x0e);
reg_w(gspca_dev, 0xff, 0x01);
reg_w(gspca_dev, 0x3e, 0x20);
cam = &gspca_dev->cam;
cam->epaddr = 0x05;
cam->cam_mode = vga_mode;
cam->nmodes = ARRAY_SIZE(vga_mode);
sd->brightness = BRIGHTNESS_DEF;
sd->contrast = CONTRAST_DEF;
sd->colors = COLOR_DEF;
sd->autogain = AUTOGAIN_DEF;
sd->ag_cnt = -1;
return 0;
}
static void setbrightness(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
int brightness;
/*jfm: inverted?*/
brightness = BRIGHTNESS_MAX - sd->brightness;
reg_w(gspca_dev, 0xff, 0x04);
/* reg_w(gspca_dev, 0x0e, 0x00); */
reg_w(gspca_dev, 0x0f, brightness);
/* load registers to sensor (Bit 0, auto clear) */
reg_w(gspca_dev, 0x11, 0x01);
PDEBUG(D_CONF|D_STREAM, "brightness: %i", brightness);
}
static void setcontrast(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
reg_w(gspca_dev, 0xff, 0x01);
reg_w(gspca_dev, 0x80, sd->contrast);
/* load registers to sensor (Bit 0, auto clear) */
reg_w(gspca_dev, 0x11, 0x01);
PDEBUG(D_CONF|D_STREAM, "contrast: %i", sd->contrast);
}
static void setcolors(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
reg_w(gspca_dev, 0xff, 0x01);
reg_w(gspca_dev, 0x10, sd->colors);
/* load registers to sensor (Bit 0, auto clear) */
reg_w(gspca_dev, 0x11, 0x01);
PDEBUG(D_CONF|D_STREAM, "color: %i", sd->colors);
}
static void setautogain(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
if (sd->autogain) {
sd->lum_sum = 0;
sd->ag_cnt = AG_CNT_START;
} else {
sd->ag_cnt = -1;
}
}
/* this function is called at open time */
static int sd_open(struct gspca_dev *gspca_dev)
{
reg_w(gspca_dev, 0x78, 0x00); /* Turn on LED */
return 0;
}
static void sd_start(struct gspca_dev *gspca_dev)
{
reg_w(gspca_dev, 0xff, 0x01);
reg_w_buf(gspca_dev, 0x0002, "\x48\x0a\x40\x08\x00\x00\x08\x00", 8);
reg_w_buf(gspca_dev, 0x000a, "\x06\xff\x11\xff\x5a\x30\x90\x4c", 8);
reg_w_buf(gspca_dev, 0x0012, "\x00\x07\x00\x0a\x10\x00\xa0\x10", 8);
reg_w_buf(gspca_dev, 0x001a, "\x02\x00\x00\x00\x00\x0b\x01\x00", 8);
reg_w_buf(gspca_dev, 0x0022, "\x00\x00\x00\x00\x00\x00\x00\x00", 8);
reg_w_buf(gspca_dev, 0x002a, "\x00\x00\x00", 3);
reg_w_buf(gspca_dev, 0x003e, "\x00\x00\x78\x52\x4a\x52\x78\x6e", 8);
reg_w_buf(gspca_dev, 0x0046, "\x48\x46\x48\x6e\x5f\x49\x42\x49", 8);
reg_w_buf(gspca_dev, 0x004e, "\x5f\x5f\x49\x42\x49\x5f\x6e\x48", 8);
reg_w_buf(gspca_dev, 0x0056, "\x46\x48\x6e\x78\x52\x4a\x52\x78", 8);
reg_w_buf(gspca_dev, 0x005e, "\x00\x00\x09\x1b\x34\x49\x5c\x9b", 8);
reg_w_buf(gspca_dev, 0x0066, "\xd0\xff", 2);
reg_w_buf(gspca_dev, 0x0078, "\x44\x00\xf2\x01\x01\x80", 6);
reg_w_buf(gspca_dev, 0x007f, "\x2a\x1c\x00\xc8\x02\x58\x03\x84", 8);
reg_w_buf(gspca_dev, 0x0087, "\x12\x00\x1a\x04\x08\x0c\x10\x14", 8);
reg_w_buf(gspca_dev, 0x008f, "\x18\x20", 2);
reg_w_buf(gspca_dev, 0x0096, "\x01\x08\x04", 3);
reg_w_buf(gspca_dev, 0x00a0, "\x44\x44\x44\x04", 4);
reg_w_buf(gspca_dev, 0x00f0, "\x01\x00\x00\x00\x22\x00\x20\x00", 8);
reg_w_buf(gspca_dev, 0x00f8, "\x3f\x00\x0a\x01\x00", 5);
reg_w(gspca_dev, 0xff, 0x04);
reg_w(gspca_dev, 0x02, 0x04);
reg_w(gspca_dev, 0x03, 0x54);
reg_w(gspca_dev, 0x04, 0x07);
reg_w(gspca_dev, 0x05, 0x2b);
reg_w(gspca_dev, 0x06, 0x09);
reg_w(gspca_dev, 0x07, 0x0f);
reg_w(gspca_dev, 0x08, 0x09);
reg_w(gspca_dev, 0x09, 0x00);
reg_w(gspca_dev, 0x0c, 0x07);
reg_w(gspca_dev, 0x0d, 0x00);
reg_w(gspca_dev, 0x0e, 0x00);
reg_w(gspca_dev, 0x0f, 0x62);
reg_w(gspca_dev, 0x10, 0x08);
reg_w(gspca_dev, 0x12, 0x07);
reg_w(gspca_dev, 0x13, 0x00);
reg_w(gspca_dev, 0x14, 0x00);
reg_w(gspca_dev, 0x15, 0x00);
reg_w(gspca_dev, 0x16, 0x00);
reg_w(gspca_dev, 0x17, 0x00);
reg_w(gspca_dev, 0x18, 0x00);
reg_w(gspca_dev, 0x19, 0x00);
reg_w(gspca_dev, 0x1a, 0x00);
reg_w(gspca_dev, 0x1b, 0x03);
reg_w(gspca_dev, 0x1c, 0xa0);
reg_w(gspca_dev, 0x1d, 0x01);
reg_w(gspca_dev, 0x1e, 0xf4);
reg_w(gspca_dev, 0x21, 0x00);
reg_w(gspca_dev, 0x22, 0x08);
reg_w(gspca_dev, 0x24, 0x03);
reg_w(gspca_dev, 0x26, 0x00);
reg_w(gspca_dev, 0x27, 0x01);
reg_w(gspca_dev, 0x28, 0xca);
reg_w(gspca_dev, 0x29, 0x10);
reg_w(gspca_dev, 0x2a, 0x06);
reg_w(gspca_dev, 0x2b, 0x78);
reg_w(gspca_dev, 0x2c, 0x00);
reg_w(gspca_dev, 0x2d, 0x00);
reg_w(gspca_dev, 0x2e, 0x00);
reg_w(gspca_dev, 0x2f, 0x00);
reg_w(gspca_dev, 0x30, 0x23);
reg_w(gspca_dev, 0x31, 0x28);
reg_w(gspca_dev, 0x32, 0x04);
reg_w(gspca_dev, 0x33, 0x11);
reg_w(gspca_dev, 0x34, 0x00);
reg_w(gspca_dev, 0x35, 0x00);
reg_w(gspca_dev, 0x11, 0x01);
setcontrast(gspca_dev);
setbrightness(gspca_dev);
setcolors(gspca_dev);
setautogain(gspca_dev);
/* set correct resolution */
switch (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
case 2: /* 160x120 */
reg_w(gspca_dev, 0xff, 0x04);
reg_w(gspca_dev, 0x02, 0x03);
reg_w(gspca_dev, 0xff, 0x01);
reg_w(gspca_dev, 0x08, 0x09);
reg_w(gspca_dev, 0x17, 0x20);
reg_w(gspca_dev, 0x1b, 0x00);
/* reg_w(gspca_dev, 0x80, 0x69); */
reg_w(gspca_dev, 0x87, 0x10);
break;
case 1: /* 320x240 */
reg_w(gspca_dev, 0xff, 0x04);
reg_w(gspca_dev, 0x02, 0x03);
reg_w(gspca_dev, 0xff, 0x01);
reg_w(gspca_dev, 0x08, 0x09);
reg_w(gspca_dev, 0x17, 0x30);
/* reg_w(gspca_dev, 0x80, 0x3f); */
reg_w(gspca_dev, 0x87, 0x11);
break;
case 0: /* 640x480 */
reg_w(gspca_dev, 0xff, 0x04);
reg_w(gspca_dev, 0x02, 0x03);
reg_w(gspca_dev, 0xff, 0x01);
reg_w(gspca_dev, 0x08, 0x08);
reg_w(gspca_dev, 0x17, 0x00);
/* reg_w(gspca_dev, 0x80, 0x1c); */
reg_w(gspca_dev, 0x87, 0x12);
break;
}
/* start stream */
reg_w(gspca_dev, 0xff, 0x01);
reg_w(gspca_dev, 0x78, 0x04);
reg_w(gspca_dev, 0x78, 0x05);
}
static void sd_stopN(struct gspca_dev *gspca_dev)
{
reg_w(gspca_dev, 0xff, 0x04);
reg_w(gspca_dev, 0x27, 0x80);
reg_w(gspca_dev, 0x28, 0xca);
reg_w(gspca_dev, 0x29, 0x53);
reg_w(gspca_dev, 0x2a, 0x0e);
reg_w(gspca_dev, 0xff, 0x01);
reg_w(gspca_dev, 0x3e, 0x20);
reg_w(gspca_dev, 0x78, 0x04); /* Bit_0=start stream, Bit_7=LED */
reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_7=LED */
reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_7=LED */
}
static void sd_stop0(struct gspca_dev *gspca_dev)
{
}
/* this function is called at close time */
static void sd_close(struct gspca_dev *gspca_dev)
{
reg_w(gspca_dev, 0xff, 0x04);
reg_w(gspca_dev, 0x27, 0x80);
reg_w(gspca_dev, 0x28, 0xca);
reg_w(gspca_dev, 0x29, 0x53);
reg_w(gspca_dev, 0x2a, 0x0e);
reg_w(gspca_dev, 0xff, 0x01);
reg_w(gspca_dev, 0x3e, 0x20);
reg_w(gspca_dev, 0x78, 0x04); /* Bit_0=start stream, Bit_7=LED */
reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_7=LED */
reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_7=LED */
}
static void do_autogain(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
int luma;
int luma_mean = 128;
int luma_delta = 20;
__u8 spring = 5;
int Gbright;
if (!atomic_read(&sd->do_gain))
return;
atomic_set(&sd->do_gain, 0);
luma = atomic_read(&sd->avg_lum);
Gbright = reg_r(gspca_dev, 0x02);
PDEBUG(D_FRAM, "luma mean %d", luma);
if (luma < luma_mean - luma_delta ||
luma > luma_mean + luma_delta) {
Gbright += (luma_mean - luma) >> spring;
if (Gbright > 0x1a)
Gbright = 0x1a;
else if (Gbright < 4)
Gbright = 4;
PDEBUG(D_FRAM, "gbright %d", Gbright);
reg_w(gspca_dev, 0xff, 0x04);
reg_w(gspca_dev, 0x0f, Gbright);
/* load registers to sensor (Bit 0, auto clear) */
reg_w(gspca_dev, 0x11, 0x01);
}
}
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;
unsigned char tmpbuf[4];
int i, p, ffseq;
/* if (len < 5) { */
if (len < 6) {
/* gspca_dev->last_packet_type = DISCARD_PACKET; */
return;
}
ffseq = sd->ffseq;
for (p = 0; p < len - 6; p++) {
if ((data[0 + p] == 0xff)
&& (data[1 + p] == 0xff)
&& (data[2 + p] == 0x00)
&& (data[3 + p] == 0xff)
&& (data[4 + p] == 0x96)) {
/* start of frame */
if (sd->ag_cnt >= 0 && p > 28) {
sd->lum_sum += data[p - 23];
if (--sd->ag_cnt < 0) {
sd->ag_cnt = AG_CNT_START;
atomic_set(&sd->avg_lum,
sd->lum_sum / AG_CNT_START);
sd->lum_sum = 0;
atomic_set(&sd->do_gain, 1);
}
}
/* copy the end of data to the current frame */
frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
data, p);
/* put the JPEG header in the new frame */
gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
(unsigned char *) pac7311_jpeg_header,
12);
tmpbuf[0] = gspca_dev->height >> 8;
tmpbuf[1] = gspca_dev->height & 0xff;
tmpbuf[2] = gspca_dev->width >> 8;
tmpbuf[3] = gspca_dev->width & 0xff;
gspca_frame_add(gspca_dev, INTER_PACKET, frame,
tmpbuf, 4);
gspca_frame_add(gspca_dev, INTER_PACKET, frame,
(unsigned char *) &pac7311_jpeg_header[16],
PAC7311_JPEG_HEADER_SIZE - 16);
data += p + 7;
len -= p + 7;
ffseq = 0;
break;
}
}
/* remove the 'ff ff ff xx' sequences */
switch (ffseq) {
case 3:
data += 1;
len -= 1;
break;
case 2:
if (data[0] == 0xff) {
data += 2;
len -= 2;
frame->data_end -= 2;
}
break;
case 1:
if (data[0] == 0xff
&& data[1] == 0xff) {
data += 3;
len -= 3;
frame->data_end -= 1;
}
break;
}
for (i = 0; i < len - 4; i++) {
if (data[i] == 0xff
&& data[i + 1] == 0xff
&& data[i + 2] == 0xff) {
memmove(&data[i], &data[i + 4], len - i - 4);
len -= 4;
}
}
ffseq = 0;
if (data[len - 4] == 0xff) {
if (data[len - 3] == 0xff
&& data[len - 2] == 0xff) {
len -= 4;
}
} else if (data[len - 3] == 0xff) {
if (data[len - 2] == 0xff
&& data[len - 1] == 0xff)
ffseq = 3;
} else if (data[len - 2] == 0xff) {
if (data[len - 1] == 0xff)
ffseq = 2;
} else if (data[len - 1] == 0xff)
ffseq = 1;
sd->ffseq = ffseq;
gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
}
static void getbrightness(struct gspca_dev *gspca_dev)
{
/* sd->brightness = reg_r(gspca_dev, 0x08);
return sd->brightness; */
/* PDEBUG(D_CONF, "Called pac7311_getbrightness: Not implemented yet"); */
}
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;
getbrightness(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;
/* getcontrast(gspca_dev); */
*val = sd->contrast;
return 0;
}
static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
sd->colors = val;
if (gspca_dev->streaming)
setcolors(gspca_dev);
return 0;
}
static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
/* getcolors(gspca_dev); */
*val = sd->colors;
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;
}
/* sub-driver description */
static struct sd_desc sd_desc = {
.name = MODULE_NAME,
.ctrls = sd_ctrls,
.nctrls = ARRAY_SIZE(sd_ctrls),
.config = sd_config,
.open = sd_open,
.start = sd_start,
.stopN = sd_stopN,
.stop0 = sd_stop0,
.close = sd_close,
.pkt_scan = sd_pkt_scan,
.dq_callback = do_autogain,
};
/* -- module initialisation -- */
static __devinitdata struct usb_device_id device_table[] = {
{USB_DEVICE(0x093a, 0x2600)},
{USB_DEVICE(0x093a, 0x2601)},
{USB_DEVICE(0x093a, 0x2603)},
{USB_DEVICE(0x093a, 0x2608)},
{USB_DEVICE(0x093a, 0x260e)},
{USB_DEVICE(0x093a, 0x260f)},
{USB_DEVICE(0x093a, 0x2621)},
{}
};
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,
};
/* -- module insert / remove -- */
static int __init sd_mod_init(void)
{
if (usb_register(&sd_driver) < 0)
return -1;
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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