/* * 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" #include "jpeg.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; __u8 hflip; __u8 vflip; __u8 qindex; 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 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 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, #define CONTRAST_MAX 255 .maximum = CONTRAST_MAX, .step = 1, #define CONTRAST_DEF 60 .default_value = CONTRAST_DEF, }, .set = sd_setcontrast, .get = sd_getcontrast, }, { { .id = V4L2_CID_SATURATION, .type = V4L2_CTRL_TYPE_INTEGER, .name = "Saturation", .minimum = 0, #define COLOR_MAX 255 .maximum = COLOR_MAX, .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, }, /* next controls work with pac7302 only */ { { .id = V4L2_CID_HFLIP, .type = V4L2_CTRL_TYPE_BOOLEAN, .name = "Mirror", .minimum = 0, .maximum = 1, .step = 1, #define HFLIP_DEF 0 .default_value = HFLIP_DEF, }, .set = sd_sethflip, .get = sd_gethflip, }, { { .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 struct v4l2_pix_format vga_mode[] = { {160, 120, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE, .bytesperline = 160, .sizeimage = 160 * 120 * 3 / 8 + 590, .colorspace = V4L2_COLORSPACE_JPEG, .priv = 2}, {320, 240, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE, .bytesperline = 320, .sizeimage = 320 * 240 * 3 / 8 + 590, .colorspace = V4L2_COLORSPACE_JPEG, .priv = 1}, {640, 480, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE, .bytesperline = 640, .sizeimage = 640 * 480 * 3 / 8 + 590, .colorspace = V4L2_COLORSPACE_JPEG, .priv = 0}, }; /* 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->hflip = HFLIP_DEF; sd->vflip = VFLIP_DEF; sd->qindex = 3; sd->ag_cnt = -1; return 0; } /* rev 12a only */ static void setbrightcont(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; int i, v; static const __u8 max[10] = {0x29, 0x33, 0x42, 0x5a, 0x6e, 0x80, 0x9f, 0xbb, 0xd4, 0xec}; static const __u8 delta[10] = {0x35, 0x33, 0x33, 0x2f, 0x2a, 0x25, 0x1e, 0x17, 0x11, 0x0b}; reg_w(gspca_dev, 0xff, 0x00); /* page 0 */ for (i = 0; i < 10; i++) { v = max[i]; v += (sd->brightness - BRIGHTNESS_MAX) * 150 / BRIGHTNESS_MAX; /* 200 ? */ v -= delta[i] * sd->contrast / CONTRAST_MAX; if (v < 0) v = 0; else if (v > 0xff) v = 0xff; reg_w(gspca_dev, 0xa2 + i, v); } reg_w(gspca_dev, 0xdc, 0x01); } static void setbrightness(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; int brightness; if (sd->sensor == SENSOR_PAC7302) { setbrightcont(gspca_dev); return; } /*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; if (sd->sensor == SENSOR_PAC7302) { setbrightcont(gspca_dev); return; } reg_w(gspca_dev, 0xff, 0x01); reg_w(gspca_dev, 0x10, sd->contrast); /* load registers to sensor (Bit 0, auto clear) */ reg_w(gspca_dev, 0x11, 0x01); } static void setcolors(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; if (sd->sensor == SENSOR_PAC7302) { int i, v; static const int a[9] = {217, -212, 0, -101, 170, -67, -38, -315, 355}; static const int b[9] = {19, 106, 0, 19, 106, 1, 19, 106, 1}; reg_w(gspca_dev, 0xff, 0x03); /* page 3 */ reg_w(gspca_dev, 0x11, 0x01); reg_w(gspca_dev, 0xff, 0x00); /* page 0 */ reg_w(gspca_dev, 0xff, 0x00); /* page 0 */ for (i = 0; i < 9; i++) { v = a[i] * sd->colors / COLOR_MAX + b[i]; reg_w(gspca_dev, 0x0f + 2 * i, (v >> 8) & 0x07); reg_w(gspca_dev, 0x0f + 2 * i + 1, v); } reg_w(gspca_dev, 0xdc, 0x01); return; } reg_w(gspca_dev, 0xff, 0x01); reg_w(gspca_dev, 0x80, 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 used by pac7302 only */ static void sethvflip(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; __u8 data; reg_w(gspca_dev, 0xff, 0x03); /* page 3 */ data = (sd->hflip ? 0x00 : 0x08) | (sd->vflip ? 0x04 : 0x00); reg_w(gspca_dev, 0x21, data); reg_w(gspca_dev, 0x11, 0x01); } /* this function is called at open time */ static int sd_open(struct gspca_dev *gspca_dev) { reg_w(gspca_dev, 0x78, 0x44); /* Turn on LED */ return 0; } static void sd_start(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; 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, 0x87, 0x10); break; case 1: /* 320x240 pac7311 */ reg_w(gspca_dev, 0xff, 0x04); reg_w(gspca_dev, 0x02, 0x07); reg_w(gspca_dev, 0xff, 0x01); reg_w(gspca_dev, 0x08, 0x09); reg_w(gspca_dev, 0x17, 0x30); 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, 0x07); reg_w(gspca_dev, 0xff, 0x01); reg_w(gspca_dev, 0x08, 0x08); reg_w(gspca_dev, 0x17, 0x00); reg_w(gspca_dev, 0x87, 0x12); break; } /* start stream */ reg_w(gspca_dev, 0xff, 0x01); if (sd->sensor == SENSOR_PAC7302) { sethvflip(gspca_dev); reg_w(gspca_dev, 0x78, 0x01); reg_w(gspca_dev, 0xff, 0x01); reg_w(gspca_dev, 0x78, 0x01); } else { reg_w(gspca_dev, 0x78, 0x44); reg_w(gspca_dev, 0x78, 0x45); } } 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, 0x44); /* 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); } } } /* 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 */ /* * 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 */ if (sd->tosof != 0) { /* if 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; jpeg_put_header(gspca_dev, frame, sd->qindex, 0x21); } for (i = 0; i < len; i++) { if (data[i] != 0xff) continue; switch (data[i + 1]) { case 0xd9: /* 'ff d9' 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; } jpeg_put_header(gspca_dev, frame, sd->qindex, 0x21); 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; } 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) sethvflip(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) sethvflip(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; } /* 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, #ifdef CONFIG_PM .suspend = gspca_suspend, .resume = gspca_resume, #endif }; /* -- 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);