1 /*
2 * Syntek DV4000 (STK014) subdriver
3 *
4 * Copyright (C) 2008 Jean-Francois Moine (http://moinejf.free.fr)
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21 #define MODULE_NAME "stk014"
22
23 #include "gspca.h"
24 #include "jpeg.h"
25
26 MODULE_AUTHOR("Jean-Francois Moine <http://moinejf.free.fr>");
27 MODULE_DESCRIPTION("Syntek DV4000 (STK014) USB Camera Driver");
28 MODULE_LICENSE("GPL");
29
30 /* specific webcam descriptor */
31 struct sd {
32 struct gspca_dev gspca_dev; /* !! must be the first item */
33
34 unsigned char brightness;
35 unsigned char contrast;
36 unsigned char colors;
37 unsigned char lightfreq;
38 u8 quality;
39 #define QUALITY_MIN 60
40 #define QUALITY_MAX 95
41 #define QUALITY_DEF 80
42
43 u8 *jpeg_hdr;
44 };
45
46 /* V4L2 controls supported by the driver */
47 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
48 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
49 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
50 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
51 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val);
52 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
53 static int sd_setfreq(struct gspca_dev *gspca_dev, __s32 val);
54 static int sd_getfreq(struct gspca_dev *gspca_dev, __s32 *val);
55
56 static struct ctrl sd_ctrls[] = {
57 {
58 {
59 .id = V4L2_CID_BRIGHTNESS,
60 .type = V4L2_CTRL_TYPE_INTEGER,
61 .name = "Brightness",
62 .minimum = 0,
63 .maximum = 255,
64 .step = 1,
65 #define BRIGHTNESS_DEF 127
66 .default_value = BRIGHTNESS_DEF,
67 },
68 .set = sd_setbrightness,
69 .get = sd_getbrightness,
70 },
71 {
72 {
73 .id = V4L2_CID_CONTRAST,
74 .type = V4L2_CTRL_TYPE_INTEGER,
75 .name = "Contrast",
76 .minimum = 0,
77 .maximum = 255,
78 .step = 1,
79 #define CONTRAST_DEF 127
80 .default_value = CONTRAST_DEF,
81 },
82 .set = sd_setcontrast,
83 .get = sd_getcontrast,
84 },
85 {
86 {
87 .id = V4L2_CID_SATURATION,
88 .type = V4L2_CTRL_TYPE_INTEGER,
89 .name = "Color",
90 .minimum = 0,
91 .maximum = 255,
92 .step = 1,
93 #define COLOR_DEF 127
94 .default_value = COLOR_DEF,
95 },
96 .set = sd_setcolors,
97 .get = sd_getcolors,
98 },
99 {
100 {
101 .id = V4L2_CID_POWER_LINE_FREQUENCY,
102 .type = V4L2_CTRL_TYPE_MENU,
103 .name = "Light frequency filter",
104 .minimum = 1,
105 .maximum = 2, /* 0: 0, 1: 50Hz, 2:60Hz */
106 .step = 1,
107 #define FREQ_DEF 1
108 .default_value = FREQ_DEF,
109 },
110 .set = sd_setfreq,
111 .get = sd_getfreq,
112 },
113 };
114
115 static const struct v4l2_pix_format vga_mode[] = {
116 {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
117 .bytesperline = 320,
118 .sizeimage = 320 * 240 * 3 / 8 + 590,
119 .colorspace = V4L2_COLORSPACE_JPEG,
120 .priv = 1},
121 {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
122 .bytesperline = 640,
123 .sizeimage = 640 * 480 * 3 / 8 + 590,
124 .colorspace = V4L2_COLORSPACE_JPEG,
125 .priv = 0},
126 };
127
128 /* -- read a register -- */
129 static int reg_r(struct gspca_dev *gspca_dev,
130 __u16 index)
131 {
132 struct usb_device *dev = gspca_dev->dev;
133 int ret;
134
135 ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
136 0x00,
137 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
138 0x00,
139 index,
140 gspca_dev->usb_buf, 1,
141 500);
142 if (ret < 0) {
143 PDEBUG(D_ERR, "reg_r err %d", ret);
144 return ret;
145 }
146 return gspca_dev->usb_buf[0];
147 }
148
149 /* -- write a register -- */
150 static int reg_w(struct gspca_dev *gspca_dev,
151 __u16 index, __u16 value)
152 {
153 struct usb_device *dev = gspca_dev->dev;
154 int ret;
155
156 ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
157 0x01,
158 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
159 value,
160 index,
161 NULL,
162 0,
163 500);
164 if (ret < 0)
165 PDEBUG(D_ERR, "reg_w err %d", ret);
166 return ret;
167 }
168
169 /* -- get a bulk value (4 bytes) -- */
170 static int rcv_val(struct gspca_dev *gspca_dev,
171 int ads)
172 {
173 struct usb_device *dev = gspca_dev->dev;
174 int alen, ret;
175
176 reg_w(gspca_dev, 0x634, (ads >> 16) & 0xff);
177 reg_w(gspca_dev, 0x635, (ads >> 8) & 0xff);
178 reg_w(gspca_dev, 0x636, ads & 0xff);
179 reg_w(gspca_dev, 0x637, 0);
180 reg_w(gspca_dev, 0x638, 4); /* len & 0xff */
181 reg_w(gspca_dev, 0x639, 0); /* len >> 8 */
182 reg_w(gspca_dev, 0x63a, 0);
183 reg_w(gspca_dev, 0x63b, 0);
184 reg_w(gspca_dev, 0x630, 5);
185 ret = usb_bulk_msg(dev,
186 usb_rcvbulkpipe(dev, 0x05),
187 gspca_dev->usb_buf,
188 4, /* length */
189 &alen,
190 500); /* timeout in milliseconds */
191 return ret;
192 }
193
194 /* -- send a bulk value -- */
195 static int snd_val(struct gspca_dev *gspca_dev,
196 int ads,
197 unsigned int val)
198 {
199 struct usb_device *dev = gspca_dev->dev;
200 int alen, ret;
201 __u8 seq = 0;
202
203 if (ads == 0x003f08) {
204 ret = reg_r(gspca_dev, 0x0704);
205 if (ret < 0)
206 goto ko;
207 ret = reg_r(gspca_dev, 0x0705);
208 if (ret < 0)
209 goto ko;
210 seq = ret; /* keep the sequence number */
211 ret = reg_r(gspca_dev, 0x0650);
212 if (ret < 0)
213 goto ko;
214 reg_w(gspca_dev, 0x654, seq);
215 } else {
216 reg_w(gspca_dev, 0x654, (ads >> 16) & 0xff);
217 }
218 reg_w(gspca_dev, 0x655, (ads >> 8) & 0xff);
219 reg_w(gspca_dev, 0x656, ads & 0xff);
220 reg_w(gspca_dev, 0x657, 0);
221 reg_w(gspca_dev, 0x658, 0x04); /* size */
222 reg_w(gspca_dev, 0x659, 0);
223 reg_w(gspca_dev, 0x65a, 0);
224 reg_w(gspca_dev, 0x65b, 0);
225 reg_w(gspca_dev, 0x650, 5);
226 gspca_dev->usb_buf[0] = val >> 24;
227 gspca_dev->usb_buf[1] = val >> 16;
228 gspca_dev->usb_buf[2] = val >> 8;
229 gspca_dev->usb_buf[3] = val;
230 ret = usb_bulk_msg(dev,
231 usb_sndbulkpipe(dev, 6),
232 gspca_dev->usb_buf,
233 4,
234 &alen,
235 500); /* timeout in milliseconds */
236 if (ret < 0)
237 goto ko;
238 if (ads == 0x003f08) {
239 seq += 4;
240 seq &= 0x3f;
241 reg_w(gspca_dev, 0x705, seq);
242 }
243 return ret;
244 ko:
245 PDEBUG(D_ERR, "snd_val err %d", ret);
246 return ret;
247 }
248
249 /* set a camera parameter */
250 static int set_par(struct gspca_dev *gspca_dev,
251 int parval)
252 {
253 return snd_val(gspca_dev, 0x003f08, parval);
254 }
255
256 static void setbrightness(struct gspca_dev *gspca_dev)
257 {
258 struct sd *sd = (struct sd *) gspca_dev;
259 int parval;
260
261 parval = 0x06000000 /* whiteness */
262 + (sd->brightness << 16);
263 set_par(gspca_dev, parval);
264 }
265
266 static void setcontrast(struct gspca_dev *gspca_dev)
267 {
268 struct sd *sd = (struct sd *) gspca_dev;
269 int parval;
270
271 parval = 0x07000000 /* contrast */
272 + (sd->contrast << 16);
273 set_par(gspca_dev, parval);
274 }
275
276 static void setcolors(struct gspca_dev *gspca_dev)
277 {
278 struct sd *sd = (struct sd *) gspca_dev;
279 int parval;
280
281 parval = 0x08000000 /* saturation */
282 + (sd->colors << 16);
283 set_par(gspca_dev, parval);
284 }
285
286 static void setfreq(struct gspca_dev *gspca_dev)
287 {
288 struct sd *sd = (struct sd *) gspca_dev;
289
290 set_par(gspca_dev, sd->lightfreq == 1
291 ? 0x33640000 /* 50 Hz */
292 : 0x33780000); /* 60 Hz */
293 }
294
295 /* this function is called at probe time */
296 static int sd_config(struct gspca_dev *gspca_dev,
297 const struct usb_device_id *id)
298 {
299 struct sd *sd = (struct sd *) gspca_dev;
300
301 gspca_dev->cam.cam_mode = vga_mode;
302 gspca_dev->cam.nmodes = ARRAY_SIZE(vga_mode);
303 sd->brightness = BRIGHTNESS_DEF;
304 sd->contrast = CONTRAST_DEF;
305 sd->colors = COLOR_DEF;
306 sd->lightfreq = FREQ_DEF;
307 sd->quality = QUALITY_DEF;
308 return 0;
309 }
310
311 /* this function is called at probe and resume time */
312 static int sd_init(struct gspca_dev *gspca_dev)
313 {
314 int ret;
315
316 /* check if the device responds */
317 usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1);
318 ret = reg_r(gspca_dev, 0x0740);
319 if (ret < 0)
320 return ret;
321 if (ret != 0xff) {
322 PDEBUG(D_ERR|D_STREAM, "init reg: 0x%02x", ret);
323 return -1;
324 }
325 return 0;
326 }
327
328 /* -- start the camera -- */
329 static int sd_start(struct gspca_dev *gspca_dev)
330 {
331 struct sd *sd = (struct sd *) gspca_dev;
332 int ret, value;
333
334 /* create the JPEG header */
335 sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
336 if (!sd->jpeg_hdr)
337 return -ENOMEM;
338 jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
339 0x22); /* JPEG 411 */
340 jpeg_set_qual(sd->jpeg_hdr, sd->quality);
341
342 /* work on alternate 1 */
343 usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1);
344
345 set_par(gspca_dev, 0x10000000);
346 set_par(gspca_dev, 0x00000000);
347 set_par(gspca_dev, 0x8002e001);
348 set_par(gspca_dev, 0x14000000);
349 if (gspca_dev->width > 320)
350 value = 0x8002e001; /* 640x480 */
351 else
352 value = 0x4001f000; /* 320x240 */
353 set_par(gspca_dev, value);
354 ret = usb_set_interface(gspca_dev->dev,
355 gspca_dev->iface,
356 gspca_dev->alt);
357 if (ret < 0) {
358 PDEBUG(D_ERR|D_STREAM, "set intf %d %d failed",
359 gspca_dev->iface, gspca_dev->alt);
360 goto out;
361 }
362 ret = reg_r(gspca_dev, 0x0630);
363 if (ret < 0)
364 goto out;
365 rcv_val(gspca_dev, 0x000020); /* << (value ff ff ff ff) */
366 ret = reg_r(gspca_dev, 0x0650);
367 if (ret < 0)
368 goto out;
369 snd_val(gspca_dev, 0x000020, 0xffffffff);
370 reg_w(gspca_dev, 0x0620, 0);
371 reg_w(gspca_dev, 0x0630, 0);
372 reg_w(gspca_dev, 0x0640, 0);
373 reg_w(gspca_dev, 0x0650, 0);
374 reg_w(gspca_dev, 0x0660, 0);
375 setbrightness(gspca_dev); /* whiteness */
376 setcontrast(gspca_dev); /* contrast */
377 setcolors(gspca_dev); /* saturation */
378 set_par(gspca_dev, 0x09800000); /* Red ? */
379 set_par(gspca_dev, 0x0a800000); /* Green ? */
380 set_par(gspca_dev, 0x0b800000); /* Blue ? */
381 set_par(gspca_dev, 0x0d030000); /* Gamma ? */
382 setfreq(gspca_dev); /* light frequency */
383
384 /* start the video flow */
385 set_par(gspca_dev, 0x01000000);
386 set_par(gspca_dev, 0x01000000);
387 PDEBUG(D_STREAM, "camera started alt: 0x%02x", gspca_dev->alt);
388 return 0;
389 out:
390 PDEBUG(D_ERR|D_STREAM, "camera start err %d", ret);
391 return ret;
392 }
393
394 static void sd_stopN(struct gspca_dev *gspca_dev)
395 {
396 struct usb_device *dev = gspca_dev->dev;
397
398 set_par(gspca_dev, 0x02000000);
399 set_par(gspca_dev, 0x02000000);
400 usb_set_interface(dev, gspca_dev->iface, 1);
401 reg_r(gspca_dev, 0x0630);
402 rcv_val(gspca_dev, 0x000020); /* << (value ff ff ff ff) */
403 reg_r(gspca_dev, 0x0650);
404 snd_val(gspca_dev, 0x000020, 0xffffffff);
405 reg_w(gspca_dev, 0x0620, 0);
406 reg_w(gspca_dev, 0x0630, 0);
407 reg_w(gspca_dev, 0x0640, 0);
408 reg_w(gspca_dev, 0x0650, 0);
409 reg_w(gspca_dev, 0x0660, 0);
410 PDEBUG(D_STREAM, "camera stopped");
411 }
412
413 static void sd_stop0(struct gspca_dev *gspca_dev)
414 {
415 struct sd *sd = (struct sd *) gspca_dev;
416
417 kfree(sd->jpeg_hdr);
418 }
419
420 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
421 struct gspca_frame *frame, /* target */
422 __u8 *data, /* isoc packet */
423 int len) /* iso packet length */
424 {
425 struct sd *sd = (struct sd *) gspca_dev;
426 static unsigned char ffd9[] = {0xff, 0xd9};
427
428 /* a frame starts with:
429 * - 0xff 0xfe
430 * - 0x08 0x00 - length (little endian ?!)
431 * - 4 bytes = size of whole frame (BE - including header)
432 * - 0x00 0x0c
433 * - 0xff 0xd8
434 * - .. JPEG image with escape sequences (ff 00)
435 * (without ending - ff d9)
436 */
437 if (data[0] == 0xff && data[1] == 0xfe) {
438 frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
439 ffd9, 2);
440
441 /* put the JPEG 411 header */
442 gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
443 sd->jpeg_hdr, JPEG_HDR_SZ);
444
445 /* beginning of the frame */
446 #define STKHDRSZ 12
447 data += STKHDRSZ;
448 len -= STKHDRSZ;
449 }
450 gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
451 }
452
453 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
454 {
455 struct sd *sd = (struct sd *) gspca_dev;
456
457 sd->brightness = val;
458 if (gspca_dev->streaming)
459 setbrightness(gspca_dev);
460 return 0;
461 }
462
463 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
464 {
465 struct sd *sd = (struct sd *) gspca_dev;
466
467 *val = sd->brightness;
468 return 0;
469 }
470
471 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
472 {
473 struct sd *sd = (struct sd *) gspca_dev;
474
475 sd->contrast = val;
476 if (gspca_dev->streaming)
477 setcontrast(gspca_dev);
478 return 0;
479 }
480
481 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
482 {
483 struct sd *sd = (struct sd *) gspca_dev;
484
485 *val = sd->contrast;
486 return 0;
487 }
488
489 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
490 {
491 struct sd *sd = (struct sd *) gspca_dev;
492
493 sd->colors = val;
494 if (gspca_dev->streaming)
495 setcolors(gspca_dev);
496 return 0;
497 }
498
499 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
500 {
501 struct sd *sd = (struct sd *) gspca_dev;
502
503 *val = sd->colors;
504 return 0;
505 }
506
507 static int sd_setfreq(struct gspca_dev *gspca_dev, __s32 val)
508 {
509 struct sd *sd = (struct sd *) gspca_dev;
510
511 sd->lightfreq = val;
512 if (gspca_dev->streaming)
513 setfreq(gspca_dev);
514 return 0;
515 }
516
517 static int sd_getfreq(struct gspca_dev *gspca_dev, __s32 *val)
518 {
519 struct sd *sd = (struct sd *) gspca_dev;
520
521 *val = sd->lightfreq;
522 return 0;
523 }
524
525 static int sd_querymenu(struct gspca_dev *gspca_dev,
526 struct v4l2_querymenu *menu)
527 {
528 switch (menu->id) {
529 case V4L2_CID_POWER_LINE_FREQUENCY:
530 switch (menu->index) {
531 case 1: /* V4L2_CID_POWER_LINE_FREQUENCY_50HZ */
532 strcpy((char *) menu->name, "50 Hz");
533 return 0;
534 case 2: /* V4L2_CID_POWER_LINE_FREQUENCY_60HZ */
535 strcpy((char *) menu->name, "60 Hz");
536 return 0;
537 }
538 break;
539 }
540 return -EINVAL;
541 }
542
543 static int sd_set_jcomp(struct gspca_dev *gspca_dev,
544 struct v4l2_jpegcompression *jcomp)
545 {
546 struct sd *sd = (struct sd *) gspca_dev;
547
548 if (jcomp->quality < QUALITY_MIN)
549 sd->quality = QUALITY_MIN;
550 else if (jcomp->quality > QUALITY_MAX)
551 sd->quality = QUALITY_MAX;
552 else
553 sd->quality = jcomp->quality;
554 if (gspca_dev->streaming)
555 jpeg_set_qual(sd->jpeg_hdr, sd->quality);
556 return 0;
557 }
558
559 static int sd_get_jcomp(struct gspca_dev *gspca_dev,
560 struct v4l2_jpegcompression *jcomp)
561 {
562 struct sd *sd = (struct sd *) gspca_dev;
563
564 memset(jcomp, 0, sizeof *jcomp);
565 jcomp->quality = sd->quality;
566 jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
567 | V4L2_JPEG_MARKER_DQT;
568 return 0;
569 }
570
571 /* sub-driver description */
572 static const struct sd_desc sd_desc = {
573 .name = MODULE_NAME,
574 .ctrls = sd_ctrls,
575 .nctrls = ARRAY_SIZE(sd_ctrls),
576 .config = sd_config,
577 .init = sd_init,
578 .start = sd_start,
579 .stopN = sd_stopN,
580 .stop0 = sd_stop0,
581 .pkt_scan = sd_pkt_scan,
582 .querymenu = sd_querymenu,
583 .get_jcomp = sd_get_jcomp,
584 .set_jcomp = sd_set_jcomp,
585 };
586
587 /* -- module initialisation -- */
588 static const __devinitdata struct usb_device_id device_table[] = {
589 {USB_DEVICE(0x05e1, 0x0893)},
590 {}
591 };
592 MODULE_DEVICE_TABLE(usb, device_table);
593
594 /* -- device connect -- */
595 static int sd_probe(struct usb_interface *intf,
596 const struct usb_device_id *id)
597 {
598 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
599 THIS_MODULE);
600 }
601
602 static struct usb_driver sd_driver = {
603 .name = MODULE_NAME,
604 .id_table = device_table,
605 .probe = sd_probe,
606 .disconnect = gspca_disconnect,
607 #ifdef CONFIG_PM
608 .suspend = gspca_suspend,
609 .resume = gspca_resume,
610 #endif
611 };
612
613 /* -- module insert / remove -- */
614 static int __init sd_mod_init(void)
615 {
616 int ret;
617 ret = usb_register(&sd_driver);
618 if (ret < 0)
619 return ret;
620 info("registered");
621 return 0;
622 }
623 static void __exit sd_mod_exit(void)
624 {
625 usb_deregister(&sd_driver);
626 info("deregistered");
627 }
628
629 module_init(sd_mod_init);
630 module_exit(sd_mod_exit);
631
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