2 * Pixart PAC7311 library
3 * Copyright (C) 2005 Thomas Kaiser thomas@kaiser-linux.li
5 * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 /* Some documentation about various registers as determined by trial and error.
23 When the register addresses differ between the 7202 and the 7311 the 2
24 different addresses are written as 7302addr/7311addr, when one of the 2
25 addresses is a - sign that register description is not valid for the
31 -/0x08 Unknown compressor related, must always be 8 except when not
32 in 640x480 resolution and page 4 reg 2 <= 3 then set it to 9 !
33 -/0x1b Auto white balance related, bit 0 is AWB enable (inverted)
34 bits 345 seem to toggle per color gains on/off (inverted)
35 0x78 Global control, bit 6 controls the LED (inverted)
36 -/0x80 JPEG compression ratio ? Best not touched
41 0x02 Clock divider 2-63, fps =~ 60 / val. Must be a multiple of 3 on
42 the 7302, so one of 3, 6, 9, ..., except when between 6 and 12?
43 -/0x0f Master gain 1-245, low value = high gain
44 0x10/- Master gain 0-31
45 -/0x10 Another gain 0-15, limited influence (1-2x gain I guess)
46 0x21 Bitfield: 0-1 unused, 2-3 vflip/hflip, 4-5 unknown, 6-7 unused
47 -/0x27 Seems to toggle various gains on / off, Setting bit 7 seems to
48 completely disable the analog amplification block. Set to 0x68
49 for max gain, 0x14 for minimal gain.
52 #define MODULE_NAME "pac7311"
56 MODULE_AUTHOR("Thomas Kaiser thomas@kaiser-linux.li");
57 MODULE_DESCRIPTION("Pixart PAC7311");
58 MODULE_LICENSE("GPL");
60 /* specific webcam descriptor */
62 struct gspca_dev gspca_dev; /* !! must be the first item */
64 unsigned char brightness;
65 unsigned char contrast;
68 unsigned char exposure;
69 unsigned char autogain;
74 #define SENSOR_PAC7302 0
75 #define SENSOR_PAC7311 1
78 u8 autogain_ignore_frames;
83 /* V4L2 controls supported by the driver */
84 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
85 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
86 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
87 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
88 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val);
89 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
90 static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val);
91 static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val);
92 static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val);
93 static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val);
94 static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val);
95 static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val);
96 static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val);
97 static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val);
98 static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val);
99 static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val);
101 static struct ctrl sd_ctrls[] = {
102 /* This control is pac7302 only */
103 #define BRIGHTNESS_IDX 0
106 .id = V4L2_CID_BRIGHTNESS,
107 .type = V4L2_CTRL_TYPE_INTEGER,
108 .name = "Brightness",
110 #define BRIGHTNESS_MAX 0x20
111 .maximum = BRIGHTNESS_MAX,
113 #define BRIGHTNESS_DEF 0x10
114 .default_value = BRIGHTNESS_DEF,
116 .set = sd_setbrightness,
117 .get = sd_getbrightness,
119 /* This control is for both the 7302 and the 7311 */
122 .id = V4L2_CID_CONTRAST,
123 .type = V4L2_CTRL_TYPE_INTEGER,
126 #define CONTRAST_MAX 255
127 .maximum = CONTRAST_MAX,
129 #define CONTRAST_DEF 127
130 .default_value = CONTRAST_DEF,
132 .set = sd_setcontrast,
133 .get = sd_getcontrast,
135 /* This control is pac7302 only */
136 #define SATURATION_IDX 2
139 .id = V4L2_CID_SATURATION,
140 .type = V4L2_CTRL_TYPE_INTEGER,
141 .name = "Saturation",
143 #define COLOR_MAX 255
144 .maximum = COLOR_MAX,
146 #define COLOR_DEF 127
147 .default_value = COLOR_DEF,
152 /* All controls below are for both the 7302 and the 7311 */
156 .type = V4L2_CTRL_TYPE_INTEGER,
163 #define GAIN_KNEE 255 /* Gain seems to cause little noise on the pac73xx */
164 .default_value = GAIN_DEF,
171 .id = V4L2_CID_EXPOSURE,
172 .type = V4L2_CTRL_TYPE_INTEGER,
175 #define EXPOSURE_MAX 255
176 .maximum = EXPOSURE_MAX,
178 #define EXPOSURE_DEF 16 /* 32 ms / 30 fps */
179 #define EXPOSURE_KNEE 50 /* 100 ms / 10 fps */
180 .default_value = EXPOSURE_DEF,
182 .set = sd_setexposure,
183 .get = sd_getexposure,
187 .id = V4L2_CID_AUTOGAIN,
188 .type = V4L2_CTRL_TYPE_BOOLEAN,
193 #define AUTOGAIN_DEF 1
194 .default_value = AUTOGAIN_DEF,
196 .set = sd_setautogain,
197 .get = sd_getautogain,
201 .id = V4L2_CID_HFLIP,
202 .type = V4L2_CTRL_TYPE_BOOLEAN,
208 .default_value = HFLIP_DEF,
215 .id = V4L2_CID_VFLIP,
216 .type = V4L2_CTRL_TYPE_BOOLEAN,
222 .default_value = VFLIP_DEF,
229 static struct v4l2_pix_format vga_mode[] = {
230 {160, 120, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE,
232 .sizeimage = 160 * 120 * 3 / 8 + 590,
233 .colorspace = V4L2_COLORSPACE_JPEG,
235 {320, 240, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE,
237 .sizeimage = 320 * 240 * 3 / 8 + 590,
238 .colorspace = V4L2_COLORSPACE_JPEG,
240 {640, 480, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE,
242 .sizeimage = 640 * 480 * 3 / 8 + 590,
243 .colorspace = V4L2_COLORSPACE_JPEG,
248 static const __u8 init_7302[] = {
250 0xff, 0x01, /* page 1 */
251 0x78, 0x00, /* deactivate */
253 0x78, 0x40, /* led off */
255 static const __u8 start_7302[] = {
256 /* index, len, [value]* */
257 0xff, 1, 0x00, /* page 0 */
258 0x00, 12, 0x01, 0x40, 0x40, 0x40, 0x01, 0xe0, 0x02, 0x80,
259 0x00, 0x00, 0x00, 0x00,
260 0x0d, 24, 0x03, 0x01, 0x00, 0xb5, 0x07, 0xcb, 0x00, 0x00,
261 0x07, 0xc8, 0x00, 0xea, 0x07, 0xcf, 0x07, 0xf7,
262 0x07, 0x7e, 0x01, 0x0b, 0x00, 0x00, 0x00, 0x11,
266 0x3a, 3, 0x14, 0xff, 0x5a,
267 0x43, 11, 0x00, 0x0a, 0x18, 0x11, 0x01, 0x2c, 0x88, 0x11,
270 0x62, 4, 0x10, 0x1e, 0x1e, 0x18,
272 0x6e, 3, 0x08, 0x06, 0x00,
273 0x72, 3, 0x00, 0xff, 0x00,
274 0x7d, 23, 0x01, 0x01, 0x58, 0x46, 0x50, 0x3c, 0x50, 0x3c,
275 0x54, 0x46, 0x54, 0x56, 0x52, 0x50, 0x52, 0x50,
276 0x56, 0x64, 0xa4, 0x00, 0xda, 0x00, 0x00,
277 0xa2, 10, 0x22, 0x2c, 0x3c, 0x54, 0x69, 0x7c, 0x9c, 0xb9,
282 0xc4, 4, 0xae, 0x01, 0x04, 0x01,
284 0xd1, 11, 0x01, 0x30, 0x49, 0x5e, 0x6f, 0x7f, 0x8e, 0xa9,
287 0xff, 1, 0x01, /* page 1 */
288 0x12, 3, 0x02, 0x00, 0x01,
290 0x76, 5, 0x01, 0x20, 0x40, 0x00, 0xf2,
292 0x7f, 10, 0x4b, 0x0f, 0x01, 0x2c, 0x02, 0x58, 0x03, 0x20,
294 0x96, 5, 0x01, 0x10, 0x04, 0x01, 0x04,
295 0xc8, 14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00,
296 0x07, 0x00, 0x01, 0x07, 0x04, 0x01,
299 0xde, 7, 0x00, 0x01, 0x04, 0x04, 0x00, 0x00, 0x00,
300 0xe6, 4, 0x00, 0x00, 0x00, 0x01,
302 0xff, 1, 0x02, /* page 2 */
304 0xff, 1, 0x03, /* page 3 */
305 0x00, 255, /* load the page 3 */
307 0xff, 1, 0x02, /* page 2 */
309 0x22, 4, 0x1f, 0xa4, 0xf0, 0x96,
311 0x2a, 5, 0xc8, 0x00, 0x18, 0x12, 0x22,
312 0x64, 8, 0x00, 0x00, 0xf0, 0x01, 0x14, 0x44, 0x44, 0x44,
314 0xff, 1, 0x01, /* page 1 */
316 0, 0 /* end of sequence */
319 /* page 3 - the value 0xaa says skip the index - see reg_w_page() */
320 static const __u8 page3_7302[] = {
321 0x90, 0x40, 0x03, 0x50, 0xc2, 0x01, 0x14, 0x16,
322 0x14, 0x12, 0x00, 0x00, 0x00, 0x02, 0x33, 0x00,
323 0x0f, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
324 0x00, 0x00, 0x00, 0x47, 0x01, 0xb3, 0x01, 0x00,
325 0x00, 0x08, 0x00, 0x00, 0x0d, 0x00, 0x00, 0x21,
326 0x00, 0x00, 0x00, 0x54, 0xf4, 0x02, 0x52, 0x54,
327 0xa4, 0xb8, 0xe0, 0x2a, 0xf6, 0x00, 0x00, 0x00,
328 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
329 0x00, 0xfc, 0x00, 0xf2, 0x1f, 0x04, 0x00, 0x00,
330 0x00, 0x00, 0x00, 0xc0, 0xc0, 0x10, 0x00, 0x00,
331 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
332 0x00, 0x40, 0xff, 0x03, 0x19, 0x00, 0x00, 0x00,
333 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
334 0x00, 0x00, 0x00, 0x00, 0x00, 0xc8, 0xc8, 0xc8,
335 0xc8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50,
336 0x08, 0x10, 0x24, 0x40, 0x00, 0x00, 0x00, 0x00,
337 0x01, 0x00, 0x02, 0x47, 0x00, 0x00, 0x00, 0x00,
338 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
339 0x00, 0x02, 0xfa, 0x00, 0x64, 0x5a, 0x28, 0x00,
344 static const __u8 init_7311[] = {
345 0x78, 0x40, /* Bit_0=start stream, Bit_6=LED */
346 0x78, 0x40, /* Bit_0=start stream, Bit_6=LED */
347 0x78, 0x44, /* Bit_0=start stream, Bit_6=LED */
357 static const __u8 start_7311[] = {
358 /* index, len, [value]* */
359 0xff, 1, 0x01, /* page 1 */
360 0x02, 43, 0x48, 0x0a, 0x40, 0x08, 0x00, 0x00, 0x08, 0x00,
361 0x06, 0xff, 0x11, 0xff, 0x5a, 0x30, 0x90, 0x4c,
362 0x00, 0x07, 0x00, 0x0a, 0x10, 0x00, 0xa0, 0x10,
363 0x02, 0x00, 0x00, 0x00, 0x00, 0x0b, 0x01, 0x00,
364 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
366 0x3e, 42, 0x00, 0x00, 0x78, 0x52, 0x4a, 0x52, 0x78, 0x6e,
367 0x48, 0x46, 0x48, 0x6e, 0x5f, 0x49, 0x42, 0x49,
368 0x5f, 0x5f, 0x49, 0x42, 0x49, 0x5f, 0x6e, 0x48,
369 0x46, 0x48, 0x6e, 0x78, 0x52, 0x4a, 0x52, 0x78,
370 0x00, 0x00, 0x09, 0x1b, 0x34, 0x49, 0x5c, 0x9b,
372 0x78, 6, 0x44, 0x00, 0xf2, 0x01, 0x01, 0x80,
373 0x7f, 18, 0x2a, 0x1c, 0x00, 0xc8, 0x02, 0x58, 0x03, 0x84,
374 0x12, 0x00, 0x1a, 0x04, 0x08, 0x0c, 0x10, 0x14,
376 0x96, 3, 0x01, 0x08, 0x04,
377 0xa0, 4, 0x44, 0x44, 0x44, 0x04,
378 0xf0, 13, 0x01, 0x00, 0x00, 0x00, 0x22, 0x00, 0x20, 0x00,
379 0x3f, 0x00, 0x0a, 0x01, 0x00,
380 0xff, 1, 0x04, /* page 4 */
381 0x00, 254, /* load the page 4 */
383 0, 0 /* end of sequence */
386 /* page 4 - the value 0xaa says skip the index - see reg_w_page() */
387 static const __u8 page4_7311[] = {
388 0xaa, 0xaa, 0x04, 0x54, 0x07, 0x2b, 0x09, 0x0f,
389 0x09, 0x00, 0xaa, 0xaa, 0x07, 0x00, 0x00, 0x62,
390 0x08, 0xaa, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00,
391 0x00, 0x00, 0x00, 0x03, 0xa0, 0x01, 0xf4, 0xaa,
392 0xaa, 0x00, 0x08, 0xaa, 0x03, 0xaa, 0x00, 0x68,
393 0xca, 0x10, 0x06, 0x78, 0x00, 0x00, 0x00, 0x00,
394 0x23, 0x28, 0x04, 0x11, 0x00, 0x00
397 static void reg_w_buf(struct gspca_dev *gspca_dev,
399 const char *buffer, int len)
401 memcpy(gspca_dev->usb_buf, buffer, len);
402 usb_control_msg(gspca_dev->dev,
403 usb_sndctrlpipe(gspca_dev->dev, 0),
405 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
407 index, gspca_dev->usb_buf, len,
412 static void reg_w(struct gspca_dev *gspca_dev,
416 gspca_dev->usb_buf[0] = value;
417 usb_control_msg(gspca_dev->dev,
418 usb_sndctrlpipe(gspca_dev->dev, 0),
420 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
421 0, index, gspca_dev->usb_buf, 1,
425 static void reg_w_seq(struct gspca_dev *gspca_dev,
426 const __u8 *seq, int len)
429 reg_w(gspca_dev, seq[0], seq[1]);
434 /* load the beginning of a page */
435 static void reg_w_page(struct gspca_dev *gspca_dev,
436 const __u8 *page, int len)
440 for (index = 0; index < len; index++) {
441 if (page[index] == 0xaa) /* skip this index */
443 gspca_dev->usb_buf[0] = page[index];
444 usb_control_msg(gspca_dev->dev,
445 usb_sndctrlpipe(gspca_dev->dev, 0),
447 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
448 0, index, gspca_dev->usb_buf, 1,
453 /* output a variable sequence */
454 static void reg_w_var(struct gspca_dev *gspca_dev,
466 reg_w_page(gspca_dev, page4_7311, sizeof page4_7311);
469 reg_w_page(gspca_dev, page3_7302, sizeof page3_7302);
473 PDEBUG(D_ERR|D_STREAM,
474 "Incorrect variable sequence");
479 reg_w_buf(gspca_dev, index, seq, len);
483 reg_w_buf(gspca_dev, index, seq, 8);
493 /* this function is called at probe time */
494 static int sd_config(struct gspca_dev *gspca_dev,
495 const struct usb_device_id *id)
497 struct sd *sd = (struct sd *) gspca_dev;
500 cam = &gspca_dev->cam;
503 sd->sensor = id->driver_info;
504 if (sd->sensor == SENSOR_PAC7302) {
505 PDEBUG(D_CONF, "Find Sensor PAC7302");
506 cam->cam_mode = &vga_mode[2]; /* only 640x480 */
509 PDEBUG(D_CONF, "Find Sensor PAC7311");
510 cam->cam_mode = vga_mode;
511 cam->nmodes = ARRAY_SIZE(vga_mode);
512 gspca_dev->ctrl_dis = (1 << BRIGHTNESS_IDX)
513 | (1 << SATURATION_IDX);
516 sd->brightness = BRIGHTNESS_DEF;
517 sd->contrast = CONTRAST_DEF;
518 sd->colors = COLOR_DEF;
520 sd->exposure = EXPOSURE_DEF;
521 sd->autogain = AUTOGAIN_DEF;
522 sd->hflip = HFLIP_DEF;
523 sd->vflip = VFLIP_DEF;
527 /* This function is used by pac7302 only */
528 static void setbrightcont(struct gspca_dev *gspca_dev)
530 struct sd *sd = (struct sd *) gspca_dev;
532 static const __u8 max[10] =
533 {0x29, 0x33, 0x42, 0x5a, 0x6e, 0x80, 0x9f, 0xbb,
535 static const __u8 delta[10] =
536 {0x35, 0x33, 0x33, 0x2f, 0x2a, 0x25, 0x1e, 0x17,
539 reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
540 for (i = 0; i < 10; i++) {
542 v += (sd->brightness - BRIGHTNESS_MAX)
543 * 150 / BRIGHTNESS_MAX; /* 200 ? */
544 v -= delta[i] * sd->contrast / CONTRAST_MAX;
549 reg_w(gspca_dev, 0xa2 + i, v);
551 reg_w(gspca_dev, 0xdc, 0x01);
554 /* This function is used by pac7311 only */
555 static void setcontrast(struct gspca_dev *gspca_dev)
557 struct sd *sd = (struct sd *) gspca_dev;
559 reg_w(gspca_dev, 0xff, 0x04);
560 reg_w(gspca_dev, 0x10, sd->contrast >> 4);
561 /* load registers to sensor (Bit 0, auto clear) */
562 reg_w(gspca_dev, 0x11, 0x01);
565 /* This function is used by pac7302 only */
566 static void setcolors(struct gspca_dev *gspca_dev)
568 struct sd *sd = (struct sd *) gspca_dev;
570 static const int a[9] =
571 {217, -212, 0, -101, 170, -67, -38, -315, 355};
572 static const int b[9] =
573 {19, 106, 0, 19, 106, 1, 19, 106, 1};
575 reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
576 reg_w(gspca_dev, 0x11, 0x01);
577 reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
578 reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
579 for (i = 0; i < 9; i++) {
580 v = a[i] * sd->colors / COLOR_MAX + b[i];
581 reg_w(gspca_dev, 0x0f + 2 * i, (v >> 8) & 0x07);
582 reg_w(gspca_dev, 0x0f + 2 * i + 1, v);
584 reg_w(gspca_dev, 0xdc, 0x01);
585 PDEBUG(D_CONF|D_STREAM, "color: %i", sd->colors);
588 static void setgain(struct gspca_dev *gspca_dev)
590 struct sd *sd = (struct sd *) gspca_dev;
592 if (sd->sensor == SENSOR_PAC7302) {
593 reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
594 reg_w(gspca_dev, 0x10, sd->gain >> 3);
596 int gain = GAIN_MAX - sd->gain;
601 reg_w(gspca_dev, 0xff, 0x04); /* page 4 */
602 reg_w(gspca_dev, 0x0e, 0x00);
603 reg_w(gspca_dev, 0x0f, gain);
605 /* load registers to sensor (Bit 0, auto clear) */
606 reg_w(gspca_dev, 0x11, 0x01);
609 static void setexposure(struct gspca_dev *gspca_dev)
611 struct sd *sd = (struct sd *) gspca_dev;
614 /* register 2 of frame 3/4 contains the clock divider configuring the
615 no fps according to the formula: 60 / reg. sd->exposure is the
616 desired exposure time in ms. */
617 reg = 120 * sd->exposure / 1000;
623 if (sd->sensor == SENSOR_PAC7302) {
624 /* On the pac7302 reg2 MUST be a multiple of 3, so round it to
625 the nearest multiple of 3, except when between 6 and 12? */
626 if (reg < 6 || reg > 12)
627 reg = ((reg + 1) / 3) * 3;
628 reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
629 reg_w(gspca_dev, 0x02, reg);
631 reg_w(gspca_dev, 0xff, 0x04); /* page 4 */
632 reg_w(gspca_dev, 0x02, reg);
633 /* Page 1 register 8 must always be 0x08 except when not in
634 640x480 mode and Page3/4 reg 2 <= 3 then it must be 9 */
635 reg_w(gspca_dev, 0xff, 0x01);
636 if (gspca_dev->cam.cam_mode[(int)gspca_dev->curr_mode].priv &&
638 reg_w(gspca_dev, 0x08, 0x09);
640 reg_w(gspca_dev, 0x08, 0x08);
642 /* load registers to sensor (Bit 0, auto clear) */
643 reg_w(gspca_dev, 0x11, 0x01);
646 static void sethvflip(struct gspca_dev *gspca_dev)
648 struct sd *sd = (struct sd *) gspca_dev;
651 if (sd->sensor == SENSOR_PAC7302) {
652 reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
653 data = (sd->hflip ? 0x08 : 0x00)
654 | (sd->vflip ? 0x04 : 0x00);
656 reg_w(gspca_dev, 0xff, 0x04); /* page 4 */
657 data = (sd->hflip ? 0x04 : 0x00)
658 | (sd->vflip ? 0x08 : 0x00);
660 reg_w(gspca_dev, 0x21, data);
661 /* load registers to sensor (Bit 0, auto clear) */
662 reg_w(gspca_dev, 0x11, 0x01);
665 /* this function is called at probe and resume time */
666 static int sd_init(struct gspca_dev *gspca_dev)
668 struct sd *sd = (struct sd *) gspca_dev;
670 if (sd->sensor == SENSOR_PAC7302)
671 reg_w_seq(gspca_dev, init_7302, sizeof init_7302);
673 reg_w_seq(gspca_dev, init_7311, sizeof init_7311);
678 static int sd_start(struct gspca_dev *gspca_dev)
680 struct sd *sd = (struct sd *) gspca_dev;
684 if (sd->sensor == SENSOR_PAC7302) {
685 reg_w_var(gspca_dev, start_7302);
686 setbrightcont(gspca_dev);
687 setcolors(gspca_dev);
689 reg_w_var(gspca_dev, start_7311);
690 setcontrast(gspca_dev);
693 setexposure(gspca_dev);
694 sethvflip(gspca_dev);
696 /* set correct resolution */
697 switch (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
698 case 2: /* 160x120 pac7311 */
699 reg_w(gspca_dev, 0xff, 0x01);
700 reg_w(gspca_dev, 0x17, 0x20);
701 reg_w(gspca_dev, 0x87, 0x10);
703 case 1: /* 320x240 pac7311 */
704 reg_w(gspca_dev, 0xff, 0x01);
705 reg_w(gspca_dev, 0x17, 0x30);
706 reg_w(gspca_dev, 0x87, 0x11);
708 case 0: /* 640x480 */
709 if (sd->sensor == SENSOR_PAC7302)
711 reg_w(gspca_dev, 0xff, 0x01);
712 reg_w(gspca_dev, 0x17, 0x00);
713 reg_w(gspca_dev, 0x87, 0x12);
718 sd->autogain_ignore_frames = 0;
719 atomic_set(&sd->avg_lum, -1);
722 reg_w(gspca_dev, 0xff, 0x01);
723 if (sd->sensor == SENSOR_PAC7302)
724 reg_w(gspca_dev, 0x78, 0x01);
726 reg_w(gspca_dev, 0x78, 0x05);
730 static void sd_stopN(struct gspca_dev *gspca_dev)
732 struct sd *sd = (struct sd *) gspca_dev;
734 if (sd->sensor == SENSOR_PAC7302) {
735 reg_w(gspca_dev, 0xff, 0x01);
736 reg_w(gspca_dev, 0x78, 0x00);
737 reg_w(gspca_dev, 0x78, 0x00);
740 reg_w(gspca_dev, 0xff, 0x04);
741 reg_w(gspca_dev, 0x27, 0x80);
742 reg_w(gspca_dev, 0x28, 0xca);
743 reg_w(gspca_dev, 0x29, 0x53);
744 reg_w(gspca_dev, 0x2a, 0x0e);
745 reg_w(gspca_dev, 0xff, 0x01);
746 reg_w(gspca_dev, 0x3e, 0x20);
747 reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
748 reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
749 reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
752 static void sd_stop0(struct gspca_dev *gspca_dev)
754 struct sd *sd = (struct sd *) gspca_dev;
756 if (sd->sensor == SENSOR_PAC7302) {
757 reg_w(gspca_dev, 0xff, 0x01);
758 reg_w(gspca_dev, 0x78, 0x40);
762 /* Include pac common sof detection functions */
763 #include "pac_common.h"
765 static void do_autogain(struct gspca_dev *gspca_dev)
767 struct sd *sd = (struct sd *) gspca_dev;
768 int avg_lum = atomic_read(&sd->avg_lum);
769 int desired_lum, deadzone;
774 if (sd->sensor == SENSOR_PAC7302) {
775 desired_lum = 270 + sd->brightness * 4;
776 /* Hack hack, with the 7202 the first exposure step is
777 pretty large, so if we're about to make the first
778 exposure increase make the deadzone large to avoid
780 if (desired_lum > avg_lum && sd->gain == GAIN_DEF &&
781 sd->exposure > EXPOSURE_DEF &&
791 if (sd->autogain_ignore_frames > 0)
792 sd->autogain_ignore_frames--;
793 else if (gspca_auto_gain_n_exposure(gspca_dev, avg_lum, desired_lum,
794 deadzone, GAIN_KNEE, EXPOSURE_KNEE))
795 sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES;
798 static const unsigned char pac7311_jpeg_header1[] = {
799 0xff, 0xd8, 0xff, 0xc0, 0x00, 0x11, 0x08
802 static const unsigned char pac7311_jpeg_header2[] = {
803 0x03, 0x01, 0x21, 0x00, 0x02, 0x11, 0x01, 0x03, 0x11, 0x01, 0xff, 0xda,
804 0x00, 0x0c, 0x03, 0x01, 0x00, 0x02, 0x11, 0x03, 0x11, 0x00, 0x3f, 0x00
807 /* this function is run at interrupt level */
808 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
809 struct gspca_frame *frame, /* target */
810 __u8 *data, /* isoc packet */
811 int len) /* iso packet length */
813 struct sd *sd = (struct sd *) gspca_dev;
816 sof = pac_find_sof(gspca_dev, data, len);
818 unsigned char tmpbuf[4];
819 int n, lum_offset, footer_length;
821 if (sd->sensor == SENSOR_PAC7302) {
822 /* 6 bytes after the FF D9 EOF marker a number of lumination
823 bytes are send corresponding to different parts of the
824 image, the 14th and 15th byte after the EOF seem to
825 correspond to the center of the image */
826 lum_offset = 61 + sizeof pac_sof_marker;
829 lum_offset = 24 + sizeof pac_sof_marker;
833 /* Finish decoding current frame */
834 n = (sof - data) - (footer_length + sizeof pac_sof_marker);
836 frame->data_end += n;
839 frame = gspca_frame_add(gspca_dev, INTER_PACKET, frame,
841 if (gspca_dev->last_packet_type != DISCARD_PACKET &&
842 frame->data_end[-2] == 0xff &&
843 frame->data_end[-1] == 0xd9)
844 frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
851 /* Get average lumination */
852 if (gspca_dev->last_packet_type == LAST_PACKET &&
854 atomic_set(&sd->avg_lum, data[-lum_offset] +
855 data[-lum_offset + 1]);
857 atomic_set(&sd->avg_lum, -1);
859 /* Start the new frame with the jpeg header */
860 gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
861 pac7311_jpeg_header1, sizeof(pac7311_jpeg_header1));
862 if (sd->sensor == SENSOR_PAC7302) {
863 /* The PAC7302 has the image rotated 90 degrees */
864 tmpbuf[0] = gspca_dev->width >> 8;
865 tmpbuf[1] = gspca_dev->width & 0xff;
866 tmpbuf[2] = gspca_dev->height >> 8;
867 tmpbuf[3] = gspca_dev->height & 0xff;
869 tmpbuf[0] = gspca_dev->height >> 8;
870 tmpbuf[1] = gspca_dev->height & 0xff;
871 tmpbuf[2] = gspca_dev->width >> 8;
872 tmpbuf[3] = gspca_dev->width & 0xff;
874 gspca_frame_add(gspca_dev, INTER_PACKET, frame, tmpbuf, 4);
875 gspca_frame_add(gspca_dev, INTER_PACKET, frame,
876 pac7311_jpeg_header2, sizeof(pac7311_jpeg_header2));
878 gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
881 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
883 struct sd *sd = (struct sd *) gspca_dev;
885 sd->brightness = val;
886 if (gspca_dev->streaming)
887 setbrightcont(gspca_dev);
891 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
893 struct sd *sd = (struct sd *) gspca_dev;
895 *val = sd->brightness;
899 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
901 struct sd *sd = (struct sd *) gspca_dev;
904 if (gspca_dev->streaming) {
905 if (sd->sensor == SENSOR_PAC7302)
906 setbrightcont(gspca_dev);
908 setcontrast(gspca_dev);
913 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
915 struct sd *sd = (struct sd *) gspca_dev;
921 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
923 struct sd *sd = (struct sd *) gspca_dev;
926 if (gspca_dev->streaming)
927 setcolors(gspca_dev);
931 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
933 struct sd *sd = (struct sd *) gspca_dev;
939 static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val)
941 struct sd *sd = (struct sd *) gspca_dev;
944 if (gspca_dev->streaming)
949 static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val)
951 struct sd *sd = (struct sd *) gspca_dev;
957 static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val)
959 struct sd *sd = (struct sd *) gspca_dev;
962 if (gspca_dev->streaming)
963 setexposure(gspca_dev);
967 static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val)
969 struct sd *sd = (struct sd *) gspca_dev;
975 static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
977 struct sd *sd = (struct sd *) gspca_dev;
980 /* when switching to autogain set defaults to make sure
981 we are on a valid point of the autogain gain /
982 exposure knee graph, and give this change time to
983 take effect before doing autogain. */
985 sd->exposure = EXPOSURE_DEF;
987 if (gspca_dev->streaming) {
988 sd->autogain_ignore_frames =
989 PAC_AUTOGAIN_IGNORE_FRAMES;
990 setexposure(gspca_dev);
998 static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val)
1000 struct sd *sd = (struct sd *) gspca_dev;
1002 *val = sd->autogain;
1006 static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val)
1008 struct sd *sd = (struct sd *) gspca_dev;
1011 if (gspca_dev->streaming)
1012 sethvflip(gspca_dev);
1016 static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val)
1018 struct sd *sd = (struct sd *) gspca_dev;
1024 static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val)
1026 struct sd *sd = (struct sd *) gspca_dev;
1029 if (gspca_dev->streaming)
1030 sethvflip(gspca_dev);
1034 static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val)
1036 struct sd *sd = (struct sd *) gspca_dev;
1042 /* sub-driver description */
1043 static struct sd_desc sd_desc = {
1044 .name = MODULE_NAME,
1046 .nctrls = ARRAY_SIZE(sd_ctrls),
1047 .config = sd_config,
1052 .pkt_scan = sd_pkt_scan,
1053 .dq_callback = do_autogain,
1056 /* -- module initialisation -- */
1057 static __devinitdata struct usb_device_id device_table[] = {
1058 {USB_DEVICE(0x093a, 0x2600), .driver_info = SENSOR_PAC7311},
1059 {USB_DEVICE(0x093a, 0x2601), .driver_info = SENSOR_PAC7311},
1060 {USB_DEVICE(0x093a, 0x2603), .driver_info = SENSOR_PAC7311},
1061 {USB_DEVICE(0x093a, 0x2608), .driver_info = SENSOR_PAC7311},
1062 {USB_DEVICE(0x093a, 0x260e), .driver_info = SENSOR_PAC7311},
1063 {USB_DEVICE(0x093a, 0x260f), .driver_info = SENSOR_PAC7311},
1064 {USB_DEVICE(0x093a, 0x2621), .driver_info = SENSOR_PAC7302},
1065 {USB_DEVICE(0x093a, 0x2624), .driver_info = SENSOR_PAC7302},
1066 {USB_DEVICE(0x093a, 0x2626), .driver_info = SENSOR_PAC7302},
1067 {USB_DEVICE(0x093a, 0x262a), .driver_info = SENSOR_PAC7302},
1070 MODULE_DEVICE_TABLE(usb, device_table);
1072 /* -- device connect -- */
1073 static int sd_probe(struct usb_interface *intf,
1074 const struct usb_device_id *id)
1076 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
1080 static struct usb_driver sd_driver = {
1081 .name = MODULE_NAME,
1082 .id_table = device_table,
1084 .disconnect = gspca_disconnect,
1086 .suspend = gspca_suspend,
1087 .resume = gspca_resume,
1091 /* -- module insert / remove -- */
1092 static int __init sd_mod_init(void)
1094 if (usb_register(&sd_driver) < 0)
1096 PDEBUG(D_PROBE, "registered");
1099 static void __exit sd_mod_exit(void)
1101 usb_deregister(&sd_driver);
1102 PDEBUG(D_PROBE, "deregistered");
1105 module_init(sd_mod_init);
1106 module_exit(sd_mod_exit);