2 * Mars-Semi MR97311A library
3 * Copyright (C) 2005 <bradlch@hotmail.com>
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 #define MODULE_NAME "mars"
27 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
28 MODULE_DESCRIPTION("GSPCA/Mars USB Camera Driver");
29 MODULE_LICENSE("GPL");
31 /* specific webcam descriptor */
33 struct gspca_dev gspca_dev; /* !! must be the first item */
40 #define QUALITY_MIN 40
41 #define QUALITY_MAX 70
42 #define QUALITY_DEF 50
44 u8 jpeg_hdr[JPEG_HDR_SZ];
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);
57 static const struct ctrl sd_ctrls[] = {
60 .id = V4L2_CID_BRIGHTNESS,
61 .type = V4L2_CTRL_TYPE_INTEGER,
66 #define BRIGHTNESS_DEF 15
67 .default_value = BRIGHTNESS_DEF,
69 .set = sd_setbrightness,
70 .get = sd_getbrightness,
74 .id = V4L2_CID_SATURATION,
75 .type = V4L2_CTRL_TYPE_INTEGER,
81 .default_value = COLOR_DEF,
89 .type = V4L2_CTRL_TYPE_INTEGER,
95 .default_value = GAMMA_DEF,
102 .id = V4L2_CID_SHARPNESS,
103 .type = V4L2_CTRL_TYPE_INTEGER,
108 #define SHARPNESS_DEF 1
109 .default_value = SHARPNESS_DEF,
111 .set = sd_setsharpness,
112 .get = sd_getsharpness,
116 static const struct v4l2_pix_format vga_mode[] = {
117 {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
119 .sizeimage = 320 * 240 * 3 / 8 + 590,
120 .colorspace = V4L2_COLORSPACE_JPEG,
122 {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
124 .sizeimage = 640 * 480 * 3 / 8 + 590,
125 .colorspace = V4L2_COLORSPACE_JPEG,
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
140 /* write <len> bytes from gspca_dev->usb_buf */
141 static int reg_w(struct gspca_dev *gspca_dev,
146 ret = usb_bulk_msg(gspca_dev->dev,
147 usb_sndbulkpipe(gspca_dev->dev, 4),
151 500); /* timeout in milliseconds */
153 PDEBUG(D_ERR, "reg write [%02x] error %d",
154 gspca_dev->usb_buf[0], ret);
158 static void mi_w(struct gspca_dev *gspca_dev,
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;
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)
174 struct sd *sd = (struct sd *) gspca_dev;
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 */
189 /* this function is called at probe and resume time */
190 static int sd_init(struct gspca_dev *gspca_dev)
195 static int sd_start(struct gspca_dev *gspca_dev)
197 struct sd *sd = (struct sd *) gspca_dev;
202 /* create the JPEG header */
203 jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
204 0x21); /* JPEG 422 */
205 jpeg_set_qual(sd->jpeg_hdr, sd->quality);
207 data = gspca_dev->usb_buf;
209 data[0] = 0x01; /* address */
211 err_code = reg_w(gspca_dev, 2);
216 Initialize the MR97113 chip register
218 data[0] = 0x00; /* address */
219 data[1] = 0x0c | 0x01; /* reg 0 */
220 data[2] = 0x01; /* reg 1 */
221 data[3] = gspca_dev->width / 8; /* h_size , reg 2 */
222 data[4] = gspca_dev->height / 8; /* v_size , reg 3 */
223 data[5] = 0x30; /* reg 4, MI, PAS5101 :
224 * 0x30 for 24mhz , 0x28 for 12mhz */
225 data[6] = 0x02; /* reg 5, H start - was 0x04 */
226 data[7] = sd->gamma * 0x40; /* reg 0x06: gamma */
227 data[8] = 0x01; /* reg 7, V start - was 0x03 */
228 /* if (h_size == 320 ) */
229 /* data[9]= 0x56; * reg 8, 24MHz, 2:1 scale down */
231 data[9] = 0x52; /* reg 8, 24MHz, no scale down */
232 /*jfm: from win trace*/
235 err_code = reg_w(gspca_dev, 11);
239 data[0] = 0x23; /* address */
240 data[1] = 0x09; /* reg 35, append frame header */
242 err_code = reg_w(gspca_dev, 2);
246 data[0] = 0x3c; /* address */
247 /* if (gspca_dev->width == 1280) */
248 /* data[1] = 200; * reg 60, pc-cam frame size
249 * (unit: 4KB) 800KB */
251 data[1] = 50; /* 50 reg 60, pc-cam frame size
252 * (unit: 4KB) 200KB */
253 err_code = reg_w(gspca_dev, 2);
258 data[0] = 0x5e; /* address */
259 data[1] = 0; /* reg 94, Y Gain (auto) */
260 /*jfm: from win trace*/
261 /* reg 0x5f/0x60 (LE) = saturation */
263 * l (5f): xxxx x000 */
264 data[2] = sd->colors << 3;
265 data[3] = ((sd->colors >> 2) & 0xf8) | 0x04;
266 data[4] = sd->brightness; /* reg 0x61 = brightness */
269 err_code = reg_w(gspca_dev, 6);
274 /*jfm: from win trace*/
275 data[1] = sd->sharpness * 4 + 3;
277 err_code = reg_w(gspca_dev, 3);
285 err_code = reg_w(gspca_dev, 4);
291 err_code = reg_w(gspca_dev, 2);
292 /*jfm: win trace - many writes here to reg 0x64*/
296 /* initialize the MI sensor */
297 for (i = 0; i < sizeof mi_data; i++)
298 mi_w(gspca_dev, i + 1, mi_data[i]);
301 data[1] = 0x4d; /* ISOC transfering enable... */
306 static void sd_stopN(struct gspca_dev *gspca_dev)
310 gspca_dev->usb_buf[0] = 1;
311 gspca_dev->usb_buf[1] = 0;
312 result = reg_w(gspca_dev, 2);
314 PDEBUG(D_ERR, "Camera Stop failed");
317 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
318 u8 *data, /* isoc packet */
319 int len) /* iso packet length */
321 struct sd *sd = (struct sd *) gspca_dev;
325 /* gspca_dev->last_packet_type = DISCARD_PACKET; */
328 for (p = 0; p < len - 6; p++) {
329 if (data[0 + p] == 0xff
330 && data[1 + p] == 0xff
331 && data[2 + p] == 0x00
332 && data[3 + p] == 0xff
333 && data[4 + p] == 0x96) {
334 if (data[5 + p] == 0x64
335 || data[5 + p] == 0x65
336 || data[5 + p] == 0x66
337 || data[5 + p] == 0x67) {
338 PDEBUG(D_PACK, "sof offset: %d len: %d",
340 gspca_frame_add(gspca_dev, LAST_PACKET,
343 /* put the JPEG header */
344 gspca_frame_add(gspca_dev, FIRST_PACKET,
345 sd->jpeg_hdr, JPEG_HDR_SZ);
352 gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
355 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
357 struct sd *sd = (struct sd *) gspca_dev;
359 sd->brightness = val;
360 if (gspca_dev->streaming) {
361 gspca_dev->usb_buf[0] = 0x61;
362 gspca_dev->usb_buf[1] = val;
368 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
370 struct sd *sd = (struct sd *) gspca_dev;
372 *val = sd->brightness;
376 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
378 struct sd *sd = (struct sd *) gspca_dev;
381 if (gspca_dev->streaming) {
384 gspca_dev->usb_buf[0] = 0x5f;
385 gspca_dev->usb_buf[1] = sd->colors << 3;
386 gspca_dev->usb_buf[2] = ((sd->colors >> 2) & 0xf8) | 0x04;
392 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
394 struct sd *sd = (struct sd *) gspca_dev;
400 static int sd_setgamma(struct gspca_dev *gspca_dev, __s32 val)
402 struct sd *sd = (struct sd *) gspca_dev;
405 if (gspca_dev->streaming) {
406 gspca_dev->usb_buf[0] = 0x06;
407 gspca_dev->usb_buf[1] = val * 0x40;
413 static int sd_getgamma(struct gspca_dev *gspca_dev, __s32 *val)
415 struct sd *sd = (struct sd *) gspca_dev;
421 static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val)
423 struct sd *sd = (struct sd *) gspca_dev;
426 if (gspca_dev->streaming) {
427 gspca_dev->usb_buf[0] = 0x67;
428 gspca_dev->usb_buf[1] = val * 4 + 3;
434 static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val)
436 struct sd *sd = (struct sd *) gspca_dev;
438 *val = sd->sharpness;
442 static int sd_set_jcomp(struct gspca_dev *gspca_dev,
443 struct v4l2_jpegcompression *jcomp)
445 struct sd *sd = (struct sd *) gspca_dev;
447 if (jcomp->quality < QUALITY_MIN)
448 sd->quality = QUALITY_MIN;
449 else if (jcomp->quality > QUALITY_MAX)
450 sd->quality = QUALITY_MAX;
452 sd->quality = jcomp->quality;
453 if (gspca_dev->streaming)
454 jpeg_set_qual(sd->jpeg_hdr, sd->quality);
458 static int sd_get_jcomp(struct gspca_dev *gspca_dev,
459 struct v4l2_jpegcompression *jcomp)
461 struct sd *sd = (struct sd *) gspca_dev;
463 memset(jcomp, 0, sizeof *jcomp);
464 jcomp->quality = sd->quality;
465 jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
466 | V4L2_JPEG_MARKER_DQT;
470 /* sub-driver description */
471 static const struct sd_desc sd_desc = {
474 .nctrls = ARRAY_SIZE(sd_ctrls),
479 .pkt_scan = sd_pkt_scan,
480 .get_jcomp = sd_get_jcomp,
481 .set_jcomp = sd_set_jcomp,
484 /* -- module initialisation -- */
485 static const __devinitdata struct usb_device_id device_table[] = {
486 {USB_DEVICE(0x093a, 0x050f)},
489 MODULE_DEVICE_TABLE(usb, device_table);
491 /* -- device connect -- */
492 static int sd_probe(struct usb_interface *intf,
493 const struct usb_device_id *id)
495 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
499 static struct usb_driver sd_driver = {
501 .id_table = device_table,
503 .disconnect = gspca_disconnect,
505 .suspend = gspca_suspend,
506 .resume = gspca_resume,
510 /* -- module insert / remove -- */
511 static int __init sd_mod_init(void)
515 ret = usb_register(&sd_driver);
518 PDEBUG(D_PROBE, "registered");
521 static void __exit sd_mod_exit(void)
523 usb_deregister(&sd_driver);
524 PDEBUG(D_PROBE, "deregistered");
527 module_init(sd_mod_init);
528 module_exit(sd_mod_exit);