/* * Pixart PAC7311 library * Copyright (C) 2005 Thomas Kaiser thomas@kaiser-linux.li * * V4L2 by Jean-Francois Moine * * 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 }; /* 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) { struct sd *sd = (struct sd *) gspca_dev; sd->ffnb = 0; sd->tosof = 0; 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); } } /* output the jpeg header */ static void put_jpeg_head(struct gspca_dev *gspca_dev, struct gspca_frame *frame) { unsigned char tmpbuf[4]; 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 #define LUM_OFFSET 0x1e /* reverse offset / start of frame */ /* * 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) */ switch (sd->ffnb) { case 1: if (data[0] != 0xff) 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]; put_jpeg_head(gspca_dev, frame); sd->tosof = 0; } 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 + 1); data += INTER_FRAME; len -= 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' */ gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, i); data += i + 4; len -= i + 4; i = 0; break; } } } 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);