1 /*
2 * Mars-Semi MR97311A library
3 * Copyright (C) 2005 <bradlch@hotmail.com>
4 *
5 * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
6 *
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
10 * any later version.
11 *
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.
16 *
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
20 */
21
22 #define MODULE_NAME "mars"
23
24 #include "gspca.h"
25 #include "jpeg.h"
26
27 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
28 MODULE_DESCRIPTION("GSPCA/Mars USB Camera Driver");
29 MODULE_LICENSE("GPL");
30
31 /* specific webcam descriptor */
32 struct sd {
33 struct gspca_dev gspca_dev; /* !! must be the first item */
34
35 u8 brightness;
36 u8 colors;
37 u8 gamma;
38 u8 sharpness;
39 u8 quality;
40 #define QUALITY_MIN 40
41 #define QUALITY_MAX 70
42 #define QUALITY_DEF 50
43
44 u8 *jpeg_hdr;
45 };
46
47 /* V4L2 controls supported by the driver */
48 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
49 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
50 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val);
51 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
52 static int sd_setgamma(struct gspca_dev *gspca_dev, __s32 val);
53 static int sd_getgamma(struct gspca_dev *gspca_dev, __s32 *val);
54 static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val);
55 static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val);
56
57 static struct ctrl sd_ctrls[] = {
58 {
59 {
60 .id = V4L2_CID_BRIGHTNESS,
61 .type = V4L2_CTRL_TYPE_INTEGER,
62 .name = "Brightness",
63 .minimum = 0,
64 .maximum = 30,
65 .step = 1,
66 #define BRIGHTNESS_DEF 15
67 .default_value = BRIGHTNESS_DEF,
68 },
69 .set = sd_setbrightness,
70 .get = sd_getbrightness,
71 },
72 {
73 {
74 .id = V4L2_CID_SATURATION,
75 .type = V4L2_CTRL_TYPE_INTEGER,
76 .name = "Color",
77 .minimum = 1,
78 .maximum = 255,
79 .step = 1,
80 #define COLOR_DEF 200
81 .default_value = COLOR_DEF,
82 },
83 .set = sd_setcolors,
84 .get = sd_getcolors,
85 },
86 {
87 {
88 .id = V4L2_CID_GAMMA,
89 .type = V4L2_CTRL_TYPE_INTEGER,
90 .name = "Gamma",
91 .minimum = 0,
92 .maximum = 3,
93 .step = 1,
94 #define GAMMA_DEF 1
95 .default_value = GAMMA_DEF,
96 },
97 .set = sd_setgamma,
98 .get = sd_getgamma,
99 },
100 {
101 {
102 .id = V4L2_CID_SHARPNESS,
103 .type = V4L2_CTRL_TYPE_INTEGER,
104 .name = "Sharpness",
105 .minimum = 0,
106 .maximum = 2,
107 .step = 1,
108 #define SHARPNESS_DEF 1
109 .default_value = SHARPNESS_DEF,
110 },
111 .set = sd_setsharpness,
112 .get = sd_getsharpness,
113 },
114 };
115
116 static const struct v4l2_pix_format vga_mode[] = {
117 {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
118 .bytesperline = 320,
119 .sizeimage = 320 * 240 * 3 / 8 + 590,
120 .colorspace = V4L2_COLORSPACE_JPEG,
121 .priv = 2},
122 {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
123 .bytesperline = 640,
124 .sizeimage = 640 * 480 * 3 / 8 + 590,
125 .colorspace = V4L2_COLORSPACE_JPEG,
126 .priv = 1},
127 };
128
129 static const __u8 mi_data[0x20] = {
130 /* 01 02 03 04 05 06 07 08 */
131 0x48, 0x22, 0x01, 0x47, 0x10, 0x00, 0x00, 0x00,
132 /* 09 0a 0b 0c 0d 0e 0f 10 */
133 0x00, 0x01, 0x30, 0x01, 0x30, 0x01, 0x30, 0x01,
134 /* 11 12 13 14 15 16 17 18 */
135 0x30, 0x00, 0x04, 0x00, 0x06, 0x01, 0xe2, 0x02,
136 /* 19 1a 1b 1c 1d 1e 1f 20 */
137 0x82, 0x00, 0x20, 0x17, 0x80, 0x08, 0x0c, 0x00
138 };
139
140 /* write <len> bytes from gspca_dev->usb_buf */
141 static int reg_w(struct gspca_dev *gspca_dev,
142 int len)
143 {
144 int alen, ret;
145
146 ret = usb_bulk_msg(gspca_dev->dev,
147 usb_sndbulkpipe(gspca_dev->dev, 4),
148 gspca_dev->usb_buf,
149 len,
150 &alen,
151 500); /* timeout in milliseconds */
152 if (ret < 0)
153 PDEBUG(D_ERR, "reg write [%02x] error %d",
154 gspca_dev->usb_buf[0], ret);
155 return ret;
156 }
157
158 static void mi_w(struct gspca_dev *gspca_dev,
159 u8 addr,
160 u8 value)
161 {
162 gspca_dev->usb_buf[0] = 0x1f;
163 gspca_dev->usb_buf[1] = 0; /* control byte */
164 gspca_dev->usb_buf[2] = addr;
165 gspca_dev->usb_buf[3] = value;
166
167 reg_w(gspca_dev, 4);
168 }
169
170 /* this function is called at probe time */
171 static int sd_config(struct gspca_dev *gspca_dev,
172 const struct usb_device_id *id)
173 {
174 struct sd *sd = (struct sd *) gspca_dev;
175 struct cam *cam;
176
177 cam = &gspca_dev->cam;
178 cam->cam_mode = vga_mode;
179 cam->nmodes = ARRAY_SIZE(vga_mode);
180 sd->brightness = BRIGHTNESS_DEF;
181 sd->colors = COLOR_DEF;
182 sd->gamma = GAMMA_DEF;
183 sd->sharpness = SHARPNESS_DEF;
184 sd->quality = QUALITY_DEF;
185 gspca_dev->nbalt = 9; /* use the altsetting 08 */
186 return 0;
187 }
188
189 /* this function is called at probe and resume time */
190 static int sd_init(struct gspca_dev *gspca_dev)
191 {
192 return 0;
193 }
194
195 static int sd_start(struct gspca_dev *gspca_dev)
196 {
197 struct sd *sd = (struct sd *) gspca_dev;
198 int err_code;
199 u8 *data;
200 int i;
201
202 /* create the JPEG header */
203 sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
204 if (!sd->jpeg_hdr)
205 return -ENOMEM;
206 jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
207 0x21); /* JPEG 422 */
208 jpeg_set_qual(sd->jpeg_hdr, sd->quality);
209
210 data = gspca_dev->usb_buf;
211
212 data[0] = 0x01; /* address */
213 data[1] = 0x01;
214 err_code = reg_w(gspca_dev, 2);
215 if (err_code < 0)
216 return err_code;
217
218 /*
219 Initialize the MR97113 chip register
220 */
221 data[0] = 0x00; /* address */
222 data[1] = 0x0c | 0x01; /* reg 0 */
223 data[2] = 0x01; /* reg 1 */
224 data[3] = gspca_dev->width / 8; /* h_size , reg 2 */
225 data[4] = gspca_dev->height / 8; /* v_size , reg 3 */
226 data[5] = 0x30; /* reg 4, MI, PAS5101 :
227 * 0x30 for 24mhz , 0x28 for 12mhz */
228 data[6] = 0x02; /* reg 5, H start - was 0x04 */
229 data[7] = sd->gamma * 0x40; /* reg 0x06: gamma */
230 data[8] = 0x01; /* reg 7, V start - was 0x03 */
231 /* if (h_size == 320 ) */
232 /* data[9]= 0x56; * reg 8, 24MHz, 2:1 scale down */
233 /* else */
234 data[9] = 0x52; /* reg 8, 24MHz, no scale down */
235 /*jfm: from win trace*/
236 data[10] = 0x18;
237
238 err_code = reg_w(gspca_dev, 11);
239 if (err_code < 0)
240 return err_code;
241
242 data[0] = 0x23; /* address */
243 data[1] = 0x09; /* reg 35, append frame header */
244
245 err_code = reg_w(gspca_dev, 2);
246 if (err_code < 0)
247 return err_code;
248
249 data[0] = 0x3c; /* address */
250 /* if (gspca_dev->width == 1280) */
251 /* data[1] = 200; * reg 60, pc-cam frame size
252 * (unit: 4KB) 800KB */
253 /* else */
254 data[1] = 50; /* 50 reg 60, pc-cam frame size
255 * (unit: 4KB) 200KB */
256 err_code = reg_w(gspca_dev, 2);
257 if (err_code < 0)
258 return err_code;
259
260 /* auto dark-gain */
261 data[0] = 0x5e; /* address */
262 data[1] = 0; /* reg 94, Y Gain (auto) */
263 /*jfm: from win trace*/
264 /* reg 0x5f/0x60 (LE) = saturation */
265 /* h (60): xxxx x100
266 * l (5f): xxxx x000 */
267 data[2] = sd->colors << 3;
268 data[3] = ((sd->colors >> 2) & 0xf8) | 0x04;
269 data[4] = sd->brightness; /* reg 0x61 = brightness */
270 data[5] = 0x00;
271
272 err_code = reg_w(gspca_dev, 6);
273 if (err_code < 0)
274 return err_code;
275
276 data[0] = 0x67;
277 /*jfm: from win trace*/
278 data[1] = sd->sharpness * 4 + 3;
279 data[2] = 0x14;
280 err_code = reg_w(gspca_dev, 3);
281 if (err_code < 0)
282 return err_code;
283
284 data[0] = 0x69;
285 data[1] = 0x2f;
286 data[2] = 0x28;
287 data[3] = 0x42;
288 err_code = reg_w(gspca_dev, 4);
289 if (err_code < 0)
290 return err_code;
291
292 data[0] = 0x63;
293 data[1] = 0x07;
294 err_code = reg_w(gspca_dev, 2);
295 /*jfm: win trace - many writes here to reg 0x64*/
296 if (err_code < 0)
297 return err_code;
298
299 /* initialize the MI sensor */
300 for (i = 0; i < sizeof mi_data; i++)
301 mi_w(gspca_dev, i + 1, mi_data[i]);
302
303 data[0] = 0x00;
304 data[1] = 0x4d; /* ISOC transfering enable... */
305 reg_w(gspca_dev, 2);
306 return 0;
307 }
308
309 static void sd_stopN(struct gspca_dev *gspca_dev)
310 {
311 int result;
312
313 gspca_dev->usb_buf[0] = 1;
314 gspca_dev->usb_buf[1] = 0;
315 result = reg_w(gspca_dev, 2);
316 if (result < 0)
317 PDEBUG(D_ERR, "Camera Stop failed");
318 }
319
320 static void sd_stop0(struct gspca_dev *gspca_dev)
321 {
322 struct sd *sd = (struct sd *) gspca_dev;
323
324 kfree(sd->jpeg_hdr);
325 }
326
327 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
328 struct gspca_frame *frame, /* target */
329 __u8 *data, /* isoc packet */
330 int len) /* iso packet length */
331 {
332 struct sd *sd = (struct sd *) gspca_dev;
333 int p;
334
335 if (len < 6) {
336 /* gspca_dev->last_packet_type = DISCARD_PACKET; */
337 return;
338 }
339 for (p = 0; p < len - 6; p++) {
340 if (data[0 + p] == 0xff
341 && data[1 + p] == 0xff
342 && data[2 + p] == 0x00
343 && data[3 + p] == 0xff
344 && data[4 + p] == 0x96) {
345 if (data[5 + p] == 0x64
346 || data[5 + p] == 0x65
347 || data[5 + p] == 0x66
348 || data[5 + p] == 0x67) {
349 PDEBUG(D_PACK, "sof offset: %d len: %d",
350 p, len);
351 frame = gspca_frame_add(gspca_dev, LAST_PACKET,
352 frame, data, p);
353
354 /* put the JPEG header */
355 gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
356 sd->jpeg_hdr, JPEG_HDR_SZ);
357 data += p + 16;
358 len -= p + 16;
359 break;
360 }
361 }
362 }
363 gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
364 }
365
366 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
367 {
368 struct sd *sd = (struct sd *) gspca_dev;
369
370 sd->brightness = val;
371 if (gspca_dev->streaming) {
372 gspca_dev->usb_buf[0] = 0x61;
373 gspca_dev->usb_buf[1] = val;
374 reg_w(gspca_dev, 2);
375 }
376 return 0;
377 }
378
379 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
380 {
381 struct sd *sd = (struct sd *) gspca_dev;
382
383 *val = sd->brightness;
384 return 0;
385 }
386
387 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
388 {
389 struct sd *sd = (struct sd *) gspca_dev;
390
391 sd->colors = val;
392 if (gspca_dev->streaming) {
393
394 /* see sd_start */
395 gspca_dev->usb_buf[0] = 0x5f;
396 gspca_dev->usb_buf[1] = sd->colors << 3;
397 gspca_dev->usb_buf[2] = ((sd->colors >> 2) & 0xf8) | 0x04;
398 reg_w(gspca_dev, 3);
399 }
400 return 0;
401 }
402
403 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
404 {
405 struct sd *sd = (struct sd *) gspca_dev;
406
407 *val = sd->colors;
408 return 0;
409 }
410
411 static int sd_setgamma(struct gspca_dev *gspca_dev, __s32 val)
412 {
413 struct sd *sd = (struct sd *) gspca_dev;
414
415 sd->gamma = val;
416 if (gspca_dev->streaming) {
417 gspca_dev->usb_buf[0] = 0x06;
418 gspca_dev->usb_buf[1] = val * 0x40;
419 reg_w(gspca_dev, 2);
420 }
421 return 0;
422 }
423
424 static int sd_getgamma(struct gspca_dev *gspca_dev, __s32 *val)
425 {
426 struct sd *sd = (struct sd *) gspca_dev;
427
428 *val = sd->gamma;
429 return 0;
430 }
431
432 static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val)
433 {
434 struct sd *sd = (struct sd *) gspca_dev;
435
436 sd->sharpness = val;
437 if (gspca_dev->streaming) {
438 gspca_dev->usb_buf[0] = 0x67;
439 gspca_dev->usb_buf[1] = val * 4 + 3;
440 reg_w(gspca_dev, 2);
441 }
442 return 0;
443 }
444
445 static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val)
446 {
447 struct sd *sd = (struct sd *) gspca_dev;
448
449 *val = sd->sharpness;
450 return 0;
451 }
452
453 static int sd_set_jcomp(struct gspca_dev *gspca_dev,
454 struct v4l2_jpegcompression *jcomp)
455 {
456 struct sd *sd = (struct sd *) gspca_dev;
457
458 if (jcomp->quality < QUALITY_MIN)
459 sd->quality = QUALITY_MIN;
460 else if (jcomp->quality > QUALITY_MAX)
461 sd->quality = QUALITY_MAX;
462 else
463 sd->quality = jcomp->quality;
464 if (gspca_dev->streaming)
465 jpeg_set_qual(sd->jpeg_hdr, sd->quality);
466 return 0;
467 }
468
469 static int sd_get_jcomp(struct gspca_dev *gspca_dev,
470 struct v4l2_jpegcompression *jcomp)
471 {
472 struct sd *sd = (struct sd *) gspca_dev;
473
474 memset(jcomp, 0, sizeof *jcomp);
475 jcomp->quality = sd->quality;
476 jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
477 | V4L2_JPEG_MARKER_DQT;
478 return 0;
479 }
480
481 /* sub-driver description */
482 static const struct sd_desc sd_desc = {
483 .name = MODULE_NAME,
484 .ctrls = sd_ctrls,
485 .nctrls = ARRAY_SIZE(sd_ctrls),
486 .config = sd_config,
487 .init = sd_init,
488 .start = sd_start,
489 .stopN = sd_stopN,
490 .stop0 = sd_stop0,
491 .pkt_scan = sd_pkt_scan,
492 .get_jcomp = sd_get_jcomp,
493 .set_jcomp = sd_set_jcomp,
494 };
495
496 /* -- module initialisation -- */
497 static const __devinitdata struct usb_device_id device_table[] = {
498 {USB_DEVICE(0x093a, 0x050f)},
499 {}
500 };
501 MODULE_DEVICE_TABLE(usb, device_table);
502
503 /* -- device connect -- */
504 static int sd_probe(struct usb_interface *intf,
505 const struct usb_device_id *id)
506 {
507 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
508 THIS_MODULE);
509 }
510
511 static struct usb_driver sd_driver = {
512 .name = MODULE_NAME,
513 .id_table = device_table,
514 .probe = sd_probe,
515 .disconnect = gspca_disconnect,
516 #ifdef CONFIG_PM
517 .suspend = gspca_suspend,
518 .resume = gspca_resume,
519 #endif
520 };
521
522 /* -- module insert / remove -- */
523 static int __init sd_mod_init(void)
524 {
525 int ret;
526
527 ret = usb_register(&sd_driver);
528 if (ret < 0)
529 return ret;
530 PDEBUG(D_PROBE, "registered");
531 return 0;
532 }
533 static void __exit sd_mod_exit(void)
534 {
535 usb_deregister(&sd_driver);
536 PDEBUG(D_PROBE, "deregistered");
537 }
538
539 module_init(sd_mod_init);
540 module_exit(sd_mod_exit);
541
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