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 char qindex;
36 };
37
38 /* V4L2 controls supported by the driver */
39 static struct ctrl sd_ctrls[] = {
40 };
41
42 static const struct v4l2_pix_format vga_mode[] = {
43 {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
44 .bytesperline = 320,
45 .sizeimage = 320 * 240 * 3 / 8 + 589,
46 .colorspace = V4L2_COLORSPACE_JPEG,
47 .priv = 2},
48 {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
49 .bytesperline = 640,
50 .sizeimage = 640 * 480 * 3 / 8 + 590,
51 .colorspace = V4L2_COLORSPACE_JPEG,
52 .priv = 1},
53 };
54
55 /* MI Register table //elvis */
56 enum {
57 REG_HW_MI_0,
58 REG_HW_MI_1,
59 REG_HW_MI_2,
60 REG_HW_MI_3,
61 REG_HW_MI_4,
62 REG_HW_MI_5,
63 REG_HW_MI_6,
64 REG_HW_MI_7,
65 REG_HW_MI_9 = 0x09,
66 REG_HW_MI_B = 0x0B,
67 REG_HW_MI_C,
68 REG_HW_MI_D,
69 REG_HW_MI_1E = 0x1E,
70 REG_HW_MI_20 = 0x20,
71 REG_HW_MI_2B = 0x2B,
72 REG_HW_MI_2C,
73 REG_HW_MI_2D,
74 REG_HW_MI_2E,
75 REG_HW_MI_35 = 0x35,
76 REG_HW_MI_5F = 0x5f,
77 REG_HW_MI_60,
78 REG_HW_MI_61,
79 REG_HW_MI_62,
80 REG_HW_MI_63,
81 REG_HW_MI_64,
82 REG_HW_MI_F1 = 0xf1,
83 ATTR_TOTAL_MI_REG = 0xf2
84 };
85
86 /* the bytes to write are in gspca_dev->usb_buf */
reg_w(struct gspca_dev * gspca_dev,__u16 index,int len)87 static int reg_w(struct gspca_dev *gspca_dev,
88 __u16 index, int len)
89 {
90 int rc;
91
92 rc = usb_control_msg(gspca_dev->dev,
93 usb_sndbulkpipe(gspca_dev->dev, 4),
94 0x12,
95 0xc8, /* ?? */
96 0, /* value */
97 index, gspca_dev->usb_buf, len, 500);
98 if (rc < 0)
99 PDEBUG(D_ERR, "reg write [%02x] error %d", index, rc);
100 return rc;
101 }
102
bulk_w(struct gspca_dev * gspca_dev,__u16 * pch,__u16 Address)103 static void bulk_w(struct gspca_dev *gspca_dev,
104 __u16 *pch,
105 __u16 Address)
106 {
107 gspca_dev->usb_buf[0] = 0x1f;
108 gspca_dev->usb_buf[1] = 0; /* control byte */
109 gspca_dev->usb_buf[2] = Address;
110 gspca_dev->usb_buf[3] = *pch >> 8; /* high byte */
111 gspca_dev->usb_buf[4] = *pch; /* low byte */
112
113 reg_w(gspca_dev, Address, 5);
114 }
115
116 /* this function is called at probe time */
sd_config(struct gspca_dev * gspca_dev,const struct usb_device_id * id)117 static int sd_config(struct gspca_dev *gspca_dev,
118 const struct usb_device_id *id)
119 {
120 struct sd *sd = (struct sd *) gspca_dev;
121 struct cam *cam;
122
123 cam = &gspca_dev->cam;
124 cam->epaddr = 0x01;
125 cam->cam_mode = vga_mode;
126 cam->nmodes = ARRAY_SIZE(vga_mode);
127 sd->qindex = 1; /* set the quantization table */
128 return 0;
129 }
130
131 /* this function is called at probe and resume time */
sd_init(struct gspca_dev * gspca_dev)132 static int sd_init(struct gspca_dev *gspca_dev)
133 {
134 return 0;
135 }
136
sd_start(struct gspca_dev * gspca_dev)137 static int sd_start(struct gspca_dev *gspca_dev)
138 {
139 int err_code;
140 __u8 *data;
141 __u16 *MI_buf;
142 int h_size, v_size;
143 int intpipe;
144
145 PDEBUG(D_STREAM, "camera start, iface %d, alt 8", gspca_dev->iface);
146 err_code = usb_set_interface(gspca_dev->dev, gspca_dev->iface, 8);
147 if (err_code < 0) {
148 PDEBUG(D_ERR|D_STREAM, "Set packet size: set interface error");
149 return err_code;
150 }
151
152 data = gspca_dev->usb_buf;
153 data[0] = 0x01; /* address */
154 data[1] = 0x01;
155
156 err_code = reg_w(gspca_dev, data[0], 2);
157 if (err_code < 0)
158 return err_code;
159
160 /*
161 Initialize the MR97113 chip register
162 */
163 data[0] = 0x00; /* address */
164 data[1] = 0x0c | 0x01; /* reg 0 */
165 data[2] = 0x01; /* reg 1 */
166 h_size = gspca_dev->width;
167 v_size = gspca_dev->height;
168 data[3] = h_size / 8; /* h_size , reg 2 */
169 data[4] = v_size / 8; /* v_size , reg 3 */
170 data[5] = 0x30; /* reg 4, MI, PAS5101 :
171 * 0x30 for 24mhz , 0x28 for 12mhz */
172 data[6] = 4; /* reg 5, H start */
173 data[7] = 0xc0; /* reg 6, gamma 1.5 */
174 data[8] = 3; /* reg 7, V start */
175 /* if (h_size == 320 ) */
176 /* data[9]= 0x56; * reg 8, 24MHz, 2:1 scale down */
177 /* else */
178 data[9] = 0x52; /* reg 8, 24MHz, no scale down */
179 data[10] = 0x5d; /* reg 9, I2C device address
180 * [for PAS5101 (0x40)] [for MI (0x5d)] */
181
182 err_code = reg_w(gspca_dev, data[0], 11);
183 if (err_code < 0)
184 return err_code;
185
186 data[0] = 0x23; /* address */
187 data[1] = 0x09; /* reg 35, append frame header */
188
189 err_code = reg_w(gspca_dev, data[0], 2);
190 if (err_code < 0)
191 return err_code;
192
193 data[0] = 0x3c; /* address */
194 /* if (gspca_dev->width == 1280) */
195 /* data[1] = 200; * reg 60, pc-cam frame size
196 * (unit: 4KB) 800KB */
197 /* else */
198 data[1] = 50; /* 50 reg 60, pc-cam frame size
199 * (unit: 4KB) 200KB */
200 err_code = reg_w(gspca_dev, data[0], 2);
201 if (err_code < 0)
202 return err_code;
203
204 if (0) { /* fixed dark-gain */
205 data[1] = 0; /* reg 94, Y Gain (1.75) */
206 data[2] = 0; /* reg 95, UV Gain (1.75) */
207 data[3] = 0x3f; /* reg 96, Y Gain/UV Gain/disable
208 * auto dark-gain */
209 data[4] = 0; /* reg 97, set fixed dark level */
210 data[5] = 0; /* reg 98, don't care */
211 } else { /* auto dark-gain */
212 data[1] = 0; /* reg 94, Y Gain (auto) */
213 data[2] = 0; /* reg 95, UV Gain (1.75) */
214 data[3] = 0x78; /* reg 96, Y Gain/UV Gain/disable
215 * auto dark-gain */
216 switch (gspca_dev->width) {
217 /* case 1280: */
218 /* data[4] = 154;
219 * reg 97, %3 shadow point (unit: 256 pixel) */
220 /* data[5] = 51;
221 * reg 98, %1 highlight point
222 * (uint: 256 pixel) */
223 /* break; */
224 default:
225 /* case 640: */
226 data[4] = 36; /* reg 97, %3 shadow point
227 * (unit: 256 pixel) */
228 data[5] = 12; /* reg 98, %1 highlight point
229 * (uint: 256 pixel) */
230 break;
231 case 320:
232 data[4] = 9; /* reg 97, %3 shadow point
233 * (unit: 256 pixel) */
234 data[5] = 3; /* reg 98, %1 highlight point
235 * (uint: 256 pixel) */
236 break;
237 }
238 }
239 /* auto dark-gain */
240 data[0] = 0x5e; /* address */
241
242 err_code = reg_w(gspca_dev, data[0], 6);
243 if (err_code < 0)
244 return err_code;
245
246 data[0] = 0x67;
247 data[1] = 0x13; /* reg 103, first pixel B, disable sharpness */
248 err_code = reg_w(gspca_dev, data[0], 2);
249 if (err_code < 0)
250 return err_code;
251
252 /*
253 * initialize the value of MI sensor...
254 */
255 MI_buf = kzalloc(ATTR_TOTAL_MI_REG * sizeof *MI_buf, GFP_KERNEL);
256 MI_buf[REG_HW_MI_1] = 0x000a;
257 MI_buf[REG_HW_MI_2] = 0x000c;
258 MI_buf[REG_HW_MI_3] = 0x0405;
259 MI_buf[REG_HW_MI_4] = 0x0507;
260 /* mi_Attr_Reg_[REG_HW_MI_5] = 0x01ff;//13 */
261 MI_buf[REG_HW_MI_5] = 0x0013; /* 13 */
262 MI_buf[REG_HW_MI_6] = 0x001f; /* vertical blanking */
263 /* mi_Attr_Reg_[REG_HW_MI_6] = 0x0400; // vertical blanking */
264 MI_buf[REG_HW_MI_7] = 0x0002;
265 /* mi_Attr_Reg_[REG_HW_MI_9] = 0x015f; */
266 /* mi_Attr_Reg_[REG_HW_MI_9] = 0x030f; */
267 MI_buf[REG_HW_MI_9] = 0x0374;
268 MI_buf[REG_HW_MI_B] = 0x0000;
269 MI_buf[REG_HW_MI_C] = 0x0000;
270 MI_buf[REG_HW_MI_D] = 0x0000;
271 MI_buf[REG_HW_MI_1E] = 0x8000;
272 /* mi_Attr_Reg_[REG_HW_MI_20] = 0x1104; */
273 MI_buf[REG_HW_MI_20] = 0x1104; /* 0x111c; */
274 MI_buf[REG_HW_MI_2B] = 0x0008;
275 /* mi_Attr_Reg_[REG_HW_MI_2C] = 0x000f; */
276 MI_buf[REG_HW_MI_2C] = 0x001f; /* lita suggest */
277 MI_buf[REG_HW_MI_2D] = 0x0008;
278 MI_buf[REG_HW_MI_2E] = 0x0008;
279 MI_buf[REG_HW_MI_35] = 0x0051;
280 MI_buf[REG_HW_MI_5F] = 0x0904; /* fail to write */
281 MI_buf[REG_HW_MI_60] = 0x0000;
282 MI_buf[REG_HW_MI_61] = 0x0000;
283 MI_buf[REG_HW_MI_62] = 0x0498;
284 MI_buf[REG_HW_MI_63] = 0x0000;
285 MI_buf[REG_HW_MI_64] = 0x0000;
286 MI_buf[REG_HW_MI_F1] = 0x0001;
287 /* changing while setting up the different value of dx/dy */
288
289 if (gspca_dev->width != 1280) {
290 MI_buf[0x01] = 0x010a;
291 MI_buf[0x02] = 0x014c;
292 MI_buf[0x03] = 0x01e5;
293 MI_buf[0x04] = 0x0287;
294 }
295 MI_buf[0x20] = 0x1104;
296
297 bulk_w(gspca_dev, MI_buf + 1, 1);
298 bulk_w(gspca_dev, MI_buf + 2, 2);
299 bulk_w(gspca_dev, MI_buf + 3, 3);
300 bulk_w(gspca_dev, MI_buf + 4, 4);
301 bulk_w(gspca_dev, MI_buf + 5, 5);
302 bulk_w(gspca_dev, MI_buf + 6, 6);
303 bulk_w(gspca_dev, MI_buf + 7, 7);
304 bulk_w(gspca_dev, MI_buf + 9, 9);
305 bulk_w(gspca_dev, MI_buf + 0x0b, 0x0b);
306 bulk_w(gspca_dev, MI_buf + 0x0c, 0x0c);
307 bulk_w(gspca_dev, MI_buf + 0x0d, 0x0d);
308 bulk_w(gspca_dev, MI_buf + 0x1e, 0x1e);
309 bulk_w(gspca_dev, MI_buf + 0x20, 0x20);
310 bulk_w(gspca_dev, MI_buf + 0x2b, 0x2b);
311 bulk_w(gspca_dev, MI_buf + 0x2c, 0x2c);
312 bulk_w(gspca_dev, MI_buf + 0x2d, 0x2d);
313 bulk_w(gspca_dev, MI_buf + 0x2e, 0x2e);
314 bulk_w(gspca_dev, MI_buf + 0x35, 0x35);
315 bulk_w(gspca_dev, MI_buf + 0x5f, 0x5f);
316 bulk_w(gspca_dev, MI_buf + 0x60, 0x60);
317 bulk_w(gspca_dev, MI_buf + 0x61, 0x61);
318 bulk_w(gspca_dev, MI_buf + 0x62, 0x62);
319 bulk_w(gspca_dev, MI_buf + 0x63, 0x63);
320 bulk_w(gspca_dev, MI_buf + 0x64, 0x64);
321 bulk_w(gspca_dev, MI_buf + 0xf1, 0xf1);
322 kfree(MI_buf);
323
324 intpipe = usb_sndintpipe(gspca_dev->dev, 0);
325 err_code = usb_clear_halt(gspca_dev->dev, intpipe);
326
327 data[0] = 0x00;
328 data[1] = 0x4d; /* ISOC transfering enable... */
329 reg_w(gspca_dev, data[0], 2);
330 return err_code;
331 }
332
sd_stopN(struct gspca_dev * gspca_dev)333 static void sd_stopN(struct gspca_dev *gspca_dev)
334 {
335 int result;
336
337 gspca_dev->usb_buf[0] = 1;
338 gspca_dev->usb_buf[1] = 0;
339 result = reg_w(gspca_dev, gspca_dev->usb_buf[0], 2);
340 if (result < 0)
341 PDEBUG(D_ERR, "Camera Stop failed");
342 }
343
sd_pkt_scan(struct gspca_dev * gspca_dev,struct gspca_frame * frame,__u8 * data,int len)344 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
345 struct gspca_frame *frame, /* target */
346 __u8 *data, /* isoc packet */
347 int len) /* iso packet length */
348 {
349 struct sd *sd = (struct sd *) gspca_dev;
350 int p;
351
352 if (len < 6) {
353 /* gspca_dev->last_packet_type = DISCARD_PACKET; */
354 return;
355 }
356 for (p = 0; p < len - 6; p++) {
357 if (data[0 + p] == 0xff
358 && data[1 + p] == 0xff
359 && data[2 + p] == 0x00
360 && data[3 + p] == 0xff
361 && data[4 + p] == 0x96) {
362 if (data[5 + p] == 0x64
363 || data[5 + p] == 0x65
364 || data[5 + p] == 0x66
365 || data[5 + p] == 0x67) {
366 PDEBUG(D_PACK, "sof offset: %d leng: %d",
367 p, len);
368 frame = gspca_frame_add(gspca_dev, LAST_PACKET,
369 frame, data, 0);
370
371 /* put the JPEG header */
372 jpeg_put_header(gspca_dev, frame,
373 sd->qindex, 0x21);
374 data += 16;
375 len -= 16;
376 break;
377 }
378 }
379 }
380 gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
381 }
382
383 /* sub-driver description */
384 static const struct sd_desc sd_desc = {
385 .name = MODULE_NAME,
386 .ctrls = sd_ctrls,
387 .nctrls = ARRAY_SIZE(sd_ctrls),
388 .config = sd_config,
389 .init = sd_init,
390 .start = sd_start,
391 .stopN = sd_stopN,
392 .pkt_scan = sd_pkt_scan,
393 };
394
395 /* -- module initialisation -- */
396 static const __devinitdata struct usb_device_id device_table[] = {
397 {USB_DEVICE(0x093a, 0x050f)},
398 {}
399 };
400 MODULE_DEVICE_TABLE(usb, device_table);
401
402 /* -- device connect -- */
sd_probe(struct usb_interface * intf,const struct usb_device_id * id)403 static int sd_probe(struct usb_interface *intf,
404 const struct usb_device_id *id)
405 {
406 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
407 THIS_MODULE);
408 }
409
410 static struct usb_driver sd_driver = {
411 .name = MODULE_NAME,
412 .id_table = device_table,
413 .probe = sd_probe,
414 .disconnect = gspca_disconnect,
415 #ifdef CONFIG_PM
416 .suspend = gspca_suspend,
417 .resume = gspca_resume,
418 #endif
419 };
420
421 /* -- module insert / remove -- */
sd_mod_init(void)422 static int __init sd_mod_init(void)
423 {
424 if (usb_register(&sd_driver) < 0)
425 return -1;
426 PDEBUG(D_PROBE, "registered");
427 return 0;
428 }
sd_mod_exit(void)429 static void __exit sd_mod_exit(void)
430 {
431 usb_deregister(&sd_driver);
432 PDEBUG(D_PROBE, "deregistered");
433 }
434
435 module_init(sd_mod_init);
436 module_exit(sd_mod_exit);
437