/*
* 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 ffnb; /* number of 'ff' in the previous frame */
char tosof; /* number of bytes before next start of frame */
signed char ag_cnt;
#define AG_CNT_START 13
__u8 sensor;
#define SENSOR_PAC7302 0
#define SENSOR_PAC7311 1
};
/* 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
};
/* pac 7302 */
static const __u8 probe_7302[] = {
/* index,value */
0xff, 0x01, /* page 1 */
0x78, 0x00, /* deactivate */
0xff, 0x01,
0x78, 0x40, /* led off */
};
static const __u8 start_7302[] = {
/* index, len, [value]* */
0xff, 1, 0x00, /* page 0 */
0x00, 12, 0x01, 0x40, 0x40, 0x40, 0x01, 0xe0, 0x02, 0x80,
0x00, 0x00, 0x00, 0x00,
0x0d, 24, 0x03, 0x01, 0x00, 0xb5, 0x07, 0xcb, 0x00, 0x00,
0x07, 0xc8, 0x00, 0xea, 0x07, 0xcf, 0x07, 0xf7,
0x07, 0x7e, 0x01, 0x0b, 0x00, 0x00, 0x00, 0x11,
0x26, 2, 0xaa, 0xaa,
0x2e, 1, 0x31,
0x38, 1, 0x01,
0x3a, 3, 0x14, 0xff, 0x5a,
0x43, 11, 0x00, 0x0a, 0x18, 0x11, 0x01, 0x2c, 0x88, 0x11,
0x00, 0x54, 0x11,
0x55, 1, 0x00,
0x62, 4, 0x10, 0x1e, 0x1e, 0x18,
0x6b, 1, 0x00,
0x6e, 3, 0x08, 0x06, 0x00,
0x72, 3, 0x00, 0xff, 0x00,
0x7d, 23, 0x01, 0x01, 0x58, 0x46, 0x50, 0x3c, 0x50, 0x3c,
0x54, 0x46, 0x54, 0x56, 0x52, 0x50, 0x52, 0x50,
0x56, 0x64, 0xa4, 0x00, 0xda, 0x00, 0x00,
0xa2, 10, 0x22, 0x2c, 0x3c, 0x54, 0x69, 0x7c, 0x9c, 0xb9,
0xd2, 0xeb,
0xaf, 1, 0x02,
0xb5, 2, 0x08, 0x08,
0xb8, 2, 0x08, 0x88,
0xc4, 4, 0xae, 0x01, 0x04, 0x01,
0xcc, 1, 0x00,
0xd1, 11, 0x01, 0x30, 0x49, 0x5e, 0x6f, 0x7f, 0x8e, 0xa9,
0xc1, 0xd7, 0xec,
0xdc, 1, 0x01,
0xff, 1, 0x01, /* page 1 */
0x12, 3, 0x02, 0x00, 0x01,
0x3e, 2, 0x00, 0x00,
0x76, 5, 0x01, 0x20, 0x40, 0x00, 0xf2,
0x7c, 1, 0x00,
0x7f, 10, 0x4b, 0x0f, 0x01, 0x2c, 0x02, 0x58, 0x03, 0x20,
0x02, 0x00,
0x96, 5, 0x01, 0x10, 0x04, 0x01, 0x04,
0xc8, 14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00,
0x07, 0x00, 0x01, 0x07, 0x04, 0x01,
0xd8, 1, 0x01,
0xdb, 2, 0x00, 0x01,
0xde, 7, 0x00, 0x01, 0x04, 0x04, 0x00, 0x00, 0x00,
0xe6, 4, 0x00, 0x00, 0x00, 0x01,
0xeb, 1, 0x00,
0xff, 1, 0x02, /* page 2 */
0x22, 1, 0x00,
0xff, 1, 0x03, /* page 3 */
0x00, 255, /* load the page 3 */
0x11, 1, 0x01,
0xff, 1, 0x02, /* page 2 */
0x13, 1, 0x00,
0x22, 4, 0x1f, 0xa4, 0xf0, 0x96,
0x27, 2, 0x14, 0x0c,
0x2a, 5, 0xc8, 0x00, 0x18, 0x12, 0x22,
0x64, 8, 0x00, 0x00, 0xf0, 0x01, 0x14, 0x44, 0x44, 0x44,
0x6e, 1, 0x08,
0xff, 1, 0x03, /* page 1 */
0x78, 1, 0x00,
0, 0 /* end of sequence */
};
/* page 3 - the value 0xaa says skip the index - see reg_w_page() */
static const __u8 page3_7302[] = {
0x90, 0x40, 0x03, 0x50, 0xc2, 0x01, 0x14, 0x16,
0x14, 0x12, 0x00, 0x00, 0x00, 0x02, 0x33, 0x00,
0x0f, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x47, 0x01, 0xb3, 0x01, 0x00,
0x00, 0x08, 0x00, 0x00, 0x0d, 0x00, 0x00, 0x21,
0x00, 0x00, 0x00, 0x54, 0xf4, 0x02, 0x52, 0x54,
0xa4, 0xb8, 0xe0, 0x2a, 0xf6, 0x00, 0x00, 0x00,
0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0xfc, 0x00, 0xf2, 0x1f, 0x04, 0x00, 0x00,
0x00, 0x00, 0x00, 0xc0, 0xc0, 0x10, 0x00, 0x00,
0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x40, 0xff, 0x03, 0x19, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0xc8, 0xc8, 0xc8,
0xc8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50,
0x08, 0x10, 0x24, 0x40, 0x00, 0x00, 0x00, 0x00,
0x01, 0x00, 0x02, 0x47, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x02, 0xfa, 0x00, 0x64, 0x5a, 0x28, 0x00,
0x00
};
/* pac 7311 */
static const __u8 probe_7311[] = {
0x78, 0x40, /* Bit_0=start stream, Bit_7=LED */
0x78, 0x40, /* Bit_0=start stream, Bit_7=LED */
0x78, 0x44, /* Bit_0=start stream, Bit_7=LED */
0xff, 0x04,
0x27, 0x80,
0x28, 0xca,
0x29, 0x53,
0x2a, 0x0e,
0xff, 0x01,
0x3e, 0x20,
};
static const __u8 start_7311[] = {
/* index, len, [value]* */
0xff, 1, 0x01, /* page 1 */
0x02, 43, 0x48, 0x0a, 0x40, 0x08, 0x00, 0x00, 0x08, 0x00,
0x06, 0xff, 0x11, 0xff, 0x5a, 0x30, 0x90, 0x4c,
0x00, 0x07, 0x00, 0x0a, 0x10, 0x00, 0xa0, 0x10,
0x02, 0x00, 0x00, 0x00, 0x00, 0x0b, 0x01, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00,
0x3e, 42, 0x00, 0x00, 0x78, 0x52, 0x4a, 0x52, 0x78, 0x6e,
0x48, 0x46, 0x48, 0x6e, 0x5f, 0x49, 0x42, 0x49,
0x5f, 0x5f, 0x49, 0x42, 0x49, 0x5f, 0x6e, 0x48,
0x46, 0x48, 0x6e, 0x78, 0x52, 0x4a, 0x52, 0x78,
0x00, 0x00, 0x09, 0x1b, 0x34, 0x49, 0x5c, 0x9b,
0xd0, 0xff,
0x78, 6, 0x44, 0x00, 0xf2, 0x01, 0x01, 0x80,
0x7f, 18, 0x2a, 0x1c, 0x00, 0xc8, 0x02, 0x58, 0x03, 0x84,
0x12, 0x00, 0x1a, 0x04, 0x08, 0x0c, 0x10, 0x14,
0x18, 0x20,
0x96, 3, 0x01, 0x08, 0x04,
0xa0, 4, 0x44, 0x44, 0x44, 0x04,
0xf0, 13, 0x01, 0x00, 0x00, 0x00, 0x22, 0x00, 0x20, 0x00,
0x3f, 0x00, 0x0a, 0x01, 0x00,
0xff, 1, 0x04, /* page 4 */
0x00, 254, /* load the page 4 */
0x11, 1, 0x01,
0, 0 /* end of sequence */
};
/* page 4 - the value 0xaa says skip the index - see reg_w_page() */
static const __u8 page4_7311[] = {
0xaa, 0xaa, 0x04, 0x54, 0x07, 0x2b, 0x09, 0x0f,
0x09, 0x00, 0xaa, 0xaa, 0x07, 0x00, 0x00, 0x62,
0x08, 0xaa, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x03, 0xa0, 0x01, 0xf4, 0xaa,
0xaa, 0x00, 0x08, 0xaa, 0x03, 0xaa, 0x00, 0x01,
0xca, 0x10, 0x06, 0x78, 0x00, 0x00, 0x00, 0x00,
0x23, 0x28, 0x04, 0x11, 0x00, 0x00
};
static void reg_w_buf(struct gspca_dev *gspca_dev,
__u8 index,
const char *buffer, int 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,
__u8 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,
__u8 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);
}
static void reg_w_seq(struct gspca_dev *gspca_dev,
const __u8 *seq, int len)
{
while (--len >= 0) {
reg_w(gspca_dev, seq[0], seq[1]);
seq += 2;
}
}
/* load the beginning of a page */
static void reg_w_page(struct gspca_dev *gspca_dev,
const __u8 *page, int len)
{
int index;
for (index = 0; index < len; index++) {
if (page[index] == 0xaa) /* skip this index */
continue;
gspca_dev->usb_buf[0] = page[index];
usb_control_msg(gspca_dev->dev,
usb_sndctrlpipe(gspca_dev->dev, 0),
0, /* request */
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0, index, gspca_dev->usb_buf, 1,
500);
}
}
/* output a variable sequence */
static void reg_w_var(struct gspca_dev *gspca_dev,
const __u8 *seq)
{
int index, len;
for (;;) {
index = *seq++;
len = *seq++;
switch (len) {
case 0:
return;
case 254:
reg_w_page(gspca_dev, page4_7311, sizeof page4_7311);
break;
case 255:
reg_w_page(gspca_dev, page3_7302, sizeof page3_7302);
break;
default:
if (len > 32) {
PDEBUG(D_ERR|D_STREAM,
"Incorrect variable sequence");
return;
}
while (len > 0) {
if (len < 8) {
reg_w_buf(gspca_dev, index, seq, len);
seq += len;
break;
}
reg_w_buf(gspca_dev, index, seq, 8);
seq += 8;
index += 8;
len -= 8;
}
}
}
/* not reached */
}
/* 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->epaddr = 0x05;
sd->sensor = id->driver_info;
if (sd->sensor == SENSOR_PAC7302) {
PDEBUG(D_CONF, "Find Sensor PAC7302");
reg_w_seq(gspca_dev, probe_7302, sizeof probe_7302);
cam->cam_mode = &vga_mode[2]; /* only 640x480 */
cam->nmodes = 1;
} else {
PDEBUG(D_CONF, "Find Sensor PAC7311");
reg_w_seq(gspca_dev, probe_7302, sizeof probe_7302);
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;
if (sd->sensor == SENSOR_PAC7302)
return;
/*jfm: inverted?*/
brightness = BRIGHTNESS_MAX - sd->brightness;
reg_w(gspca_dev, 0xff, 0x04);
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;
if (sd->sensor == SENSOR_PAC7302)
return;
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;
if (sd->sensor == SENSOR_PAC7302)
return;
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)
{
struct sd *sd = (struct sd *) gspca_dev;
sd->ffnb = 0;
sd->tosof = 0;
if (sd->sensor == SENSOR_PAC7302)
reg_w_var(gspca_dev, start_7302);
else
reg_w_var(gspca_dev, start_7311);
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 pac7311 */
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 pac7311 */
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 */
if (sd->sensor == SENSOR_PAC7302)
break;
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);
if (sd->sensor == SENSOR_PAC7302) {
reg_w(gspca_dev, 0x78, 0x01);
reg_w(gspca_dev, 0xff, 0x01);
reg_w(gspca_dev, 0x78, 0x01);
} else {
reg_w(gspca_dev, 0x78, 0x04);
reg_w(gspca_dev, 0x78, 0x05);
}
}
static void sd_stopN(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
if (sd->sensor == SENSOR_PAC7302) {
reg_w(gspca_dev, 0x78, 0x00);
reg_w(gspca_dev, 0x78, 0x00);
return;
}
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)
{
struct sd *sd = (struct sd *) gspca_dev;
if (sd->sensor == SENSOR_PAC7302) {
reg_w(gspca_dev, 0xff, 0x01);
reg_w(gspca_dev, 0x78, 0x40);
}
}
/* this function is called at close time */
static void sd_close(struct gspca_dev *gspca_dev)
{
}
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);
if (sd->sensor == SENSOR_PAC7302) {
reg_w(gspca_dev, 0xff, 0x03);
reg_w(gspca_dev, 0x10, Gbright);
/* load registers to sensor (Bit 0, auto clear) */
reg_w(gspca_dev, 0x11, 0x01);
} else {
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);
}
}
}
/* output the jpeg header */
static void put_jpeg_head(struct gspca_dev *gspca_dev,
struct gspca_frame *frame)
{
struct sd *sd = (struct sd *) gspca_dev;
unsigned char tmpbuf[4];
if (sd->ag_cnt >= 0) {
if (--sd->ag_cnt < 0) {
sd->ag_cnt = AG_CNT_START;
atomic_set(&sd->avg_lum, sd->lum_sum / AG_CNT_START);
atomic_set(&sd->do_gain, 1);
}
}
gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
(__u8 *) 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,
(__u8 *) &pac7311_jpeg_header[16],
PAC7311_JPEG_HEADER_SIZE - 16);
}
/* this function is run at interrupt level */
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;
int i;
#define INTER_FRAME 0x53 /* eof + inter frame + sof */
#define LUM_OFFSET 0x1e /* reverse offset / start of frame */
/*fixme:test+*/
/* dump the packet */
if (gspca_debug & 0x200) {
static char tmp[50];
PDEBUG(0x200, "pkt_scan");
tmp[0] = 0;
for (i = 0; i < len; i++) {
if (i % 16 == 0 && i != 0) {
PDEBUG(0x200, "%s", tmp);
tmp[0] = 0;
}
sprintf(&tmp[(i % 16) * 3], "%02x ", data[i]);
}
if (tmp[0] != 0)
PDEBUG(0x200, "%s", tmp);
}
/*fixme:test-*/
/*
* inside a frame, there may be:
* escaped ff ('ff 00')
* sequences'ff ff ff xx' to remove
* end of frame ('ff d9')
* at the end of frame, there are:
* ff d9 end of frame
* 0x33 bytes
* one byte luminosity
* 0x16 bytes
* ff ff 00 ff 96 62 44 start of frame header
*/
if (sd->tosof == 0) { /* if inside a frame */
/* check for 'ff ff ff xx' at start and at end of packet */
/* (len is always >= 3 and xx never ff) */
switch (sd->ffnb) {
case 1:
if (data[0] != 0xff) { /* can be '00' only */
__u8 ff;
sd->ffnb = 0;
ff = 0xff;
gspca_frame_add(gspca_dev, INTER_PACKET,
frame, &ff, 1);
break; /* keep 'ff 00' */
}
/* fall thru */
case 2:
case 3:
data += 4 - sd->ffnb;
len -= 4 - sd->ffnb;
sd->ffnb = 0;
break;
}
if (data[len - 1] == 0xff) {
if (data[len - 2] == 0xff) {
if (data[len - 3] == 0xff) {
sd->ffnb = 3;
len -= 3;
} else {
sd->ffnb = 2;
len -= 2;
}
} else {
sd->ffnb = 1;
len--;
}
}
} else { /* outside a frame */
/* get the luminosity and go to the start of frame */
data += sd->tosof;
len -= sd->tosof;
if (sd->tosof > LUM_OFFSET)
sd->lum_sum += data[-LUM_OFFSET];
sd->tosof = 0;
put_jpeg_head(gspca_dev, frame);
}
for (i = 0; i < len; i++) {
if (data[i] != 0xff)
continue;
switch (data[i + 1]) {
case 0xd9: /* end of frame */
frame = gspca_frame_add(gspca_dev,
LAST_PACKET,
frame, data, i + 2);
data += i + INTER_FRAME;
len -= i + INTER_FRAME;
i = 0;
if (len > -LUM_OFFSET)
sd->lum_sum += data[-LUM_OFFSET];
if (len < 0) {
sd->tosof = -len;
break;
}
put_jpeg_head(gspca_dev, frame);
break;
case 0xff: /* 'ff ff ff xx' */
/*fixme:test+*/
/* is there a start of frame ? */
if (data[i + 2] == 0x00) {
static __u8 ffd9[2] = {0xff, 0xd9};
gspca_frame_add(gspca_dev,
INTER_PACKET,
frame, data,
i + 7 - INTER_FRAME);
frame = gspca_frame_add(gspca_dev,
LAST_PACKET,
frame, ffd9, 2);
data += i + 7;
len -= i + 7;
i = 0;
put_jpeg_head(gspca_dev, frame);
break;
}
/*fixme:test-*/
gspca_frame_add(gspca_dev, INTER_PACKET,
frame, data, i);
data += i + 4;
len -= i + 4;
i = 0;
break;
}
}
gspca_frame_add(gspca_dev, INTER_PACKET,
frame, data, i);
}
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_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;
*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), .driver_info = SENSOR_PAC7311},
{USB_DEVICE(0x093a, 0x2601), .driver_info = SENSOR_PAC7311},
{USB_DEVICE(0x093a, 0x2603), .driver_info = SENSOR_PAC7311},
{USB_DEVICE(0x093a, 0x2608), .driver_info = SENSOR_PAC7311},
{USB_DEVICE(0x093a, 0x260e), .driver_info = SENSOR_PAC7311},
{USB_DEVICE(0x093a, 0x260f), .driver_info = SENSOR_PAC7311},
{USB_DEVICE(0x093a, 0x2621), .driver_info = SENSOR_PAC7302},
{}
};
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);
