xref: /openbmc/linux/drivers/media/usb/gspca/spca505.c (revision e8f6f3b4)
1 /*
2  * SPCA505 chip based cameras initialization data
3  *
4  * V4L2 by Jean-Francis 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 
22 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
23 
24 #define MODULE_NAME "spca505"
25 
26 #include "gspca.h"
27 
28 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
29 MODULE_DESCRIPTION("GSPCA/SPCA505 USB Camera Driver");
30 MODULE_LICENSE("GPL");
31 
32 /* specific webcam descriptor */
33 struct sd {
34 	struct gspca_dev gspca_dev;		/* !! must be the first item */
35 
36 	u8 subtype;
37 #define IntelPCCameraPro 0
38 #define Nxultra 1
39 };
40 
41 static const struct v4l2_pix_format vga_mode[] = {
42 	{160, 120, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
43 		.bytesperline = 160,
44 		.sizeimage = 160 * 120 * 3 / 2,
45 		.colorspace = V4L2_COLORSPACE_SRGB,
46 		.priv = 4},
47 	{176, 144, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
48 		.bytesperline = 176,
49 		.sizeimage = 176 * 144 * 3 / 2,
50 		.colorspace = V4L2_COLORSPACE_SRGB,
51 		.priv = 3},
52 	{320, 240, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
53 		.bytesperline = 320,
54 		.sizeimage = 320 * 240 * 3 / 2,
55 		.colorspace = V4L2_COLORSPACE_SRGB,
56 		.priv = 2},
57 	{352, 288, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
58 		.bytesperline = 352,
59 		.sizeimage = 352 * 288 * 3 / 2,
60 		.colorspace = V4L2_COLORSPACE_SRGB,
61 		.priv = 1},
62 	{640, 480, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
63 		.bytesperline = 640,
64 		.sizeimage = 640 * 480 * 3 / 2,
65 		.colorspace = V4L2_COLORSPACE_SRGB,
66 		.priv = 0},
67 };
68 
69 #define SPCA50X_OFFSET_DATA 10
70 
71 #define SPCA50X_REG_USB 0x02	/* spca505 501 */
72 
73 #define SPCA50X_USB_CTRL 0x00	/* spca505 */
74 #define SPCA50X_CUSB_ENABLE 0x01 /* spca505 */
75 
76 #define SPCA50X_REG_GLOBAL 0x03	/* spca505 */
77 #define SPCA50X_GMISC0_IDSEL 0x01 /* Global control device ID select spca505 */
78 #define SPCA50X_GLOBAL_MISC0 0x00 /* Global control miscellaneous 0 spca505 */
79 
80 #define SPCA50X_GLOBAL_MISC1 0x01 /* 505 */
81 #define SPCA50X_GLOBAL_MISC3 0x03 /* 505 */
82 #define SPCA50X_GMISC3_SAA7113RST 0x20	/* Not sure about this one spca505 */
83 
84 /* Image format and compression control */
85 #define SPCA50X_REG_COMPRESS 0x04
86 
87 /*
88  * Data to initialize a SPCA505. Common to the CCD and external modes
89  */
90 static const u8 spca505_init_data[][3] = {
91 	/* bmRequest,value,index */
92 	{SPCA50X_REG_GLOBAL, SPCA50X_GMISC3_SAA7113RST, SPCA50X_GLOBAL_MISC3},
93 	/* Sensor reset */
94 	{SPCA50X_REG_GLOBAL, 0x00, SPCA50X_GLOBAL_MISC3},
95 	{SPCA50X_REG_GLOBAL, 0x00, SPCA50X_GLOBAL_MISC1},
96 	/* Block USB reset */
97 	{SPCA50X_REG_GLOBAL, SPCA50X_GMISC0_IDSEL, SPCA50X_GLOBAL_MISC0},
98 
99 	{0x05, 0x01, 0x10},
100 					/* Maybe power down some stuff */
101 	{0x05, 0x0f, 0x11},
102 
103 	/* Setup internal CCD  ? */
104 	{0x06, 0x10, 0x08},
105 	{0x06, 0x00, 0x09},
106 	{0x06, 0x00, 0x0a},
107 	{0x06, 0x00, 0x0b},
108 	{0x06, 0x10, 0x0c},
109 	{0x06, 0x00, 0x0d},
110 	{0x06, 0x00, 0x0e},
111 	{0x06, 0x00, 0x0f},
112 	{0x06, 0x10, 0x10},
113 	{0x06, 0x02, 0x11},
114 	{0x06, 0x00, 0x12},
115 	{0x06, 0x04, 0x13},
116 	{0x06, 0x02, 0x14},
117 	{0x06, 0x8a, 0x51},
118 	{0x06, 0x40, 0x52},
119 	{0x06, 0xb6, 0x53},
120 	{0x06, 0x3d, 0x54},
121 	{}
122 };
123 
124 /*
125  * Data to initialize the camera using the internal CCD
126  */
127 static const u8 spca505_open_data_ccd[][3] = {
128 	/* bmRequest,value,index */
129 	/* Internal CCD data set */
130 	{0x03, 0x04, 0x01},
131 	/* This could be a reset */
132 	{0x03, 0x00, 0x01},
133 
134 	/* Setup compression and image registers. 0x6 and 0x7 seem to be
135 	   related to H&V hold, and are resolution mode specific */
136 		{0x04, 0x10, 0x01},
137 		/* DIFF(0x50), was (0x10) */
138 	{0x04, 0x00, 0x04},
139 	{0x04, 0x00, 0x05},
140 	{0x04, 0x20, 0x06},
141 	{0x04, 0x20, 0x07},
142 
143 	{0x08, 0x0a, 0x00},
144 	/* DIFF (0x4a), was (0xa) */
145 
146 	{0x05, 0x00, 0x10},
147 	{0x05, 0x00, 0x11},
148 	{0x05, 0x00, 0x00},
149 	/* DIFF not written */
150 	{0x05, 0x00, 0x01},
151 	/* DIFF not written */
152 	{0x05, 0x00, 0x02},
153 	/* DIFF not written */
154 	{0x05, 0x00, 0x03},
155 	/* DIFF not written */
156 	{0x05, 0x00, 0x04},
157 	/* DIFF not written */
158 		{0x05, 0x80, 0x05},
159 		/* DIFF not written */
160 		{0x05, 0xe0, 0x06},
161 		/* DIFF not written */
162 		{0x05, 0x20, 0x07},
163 		/* DIFF not written */
164 		{0x05, 0xa0, 0x08},
165 		/* DIFF not written */
166 		{0x05, 0x0, 0x12},
167 		/* DIFF not written */
168 	{0x05, 0x02, 0x0f},
169 	/* DIFF not written */
170 		{0x05, 0x10, 0x46},
171 		/* DIFF not written */
172 		{0x05, 0x8, 0x4a},
173 		/* DIFF not written */
174 
175 	{0x03, 0x08, 0x03},
176 	/* DIFF (0x3,0x28,0x3) */
177 	{0x03, 0x08, 0x01},
178 	{0x03, 0x0c, 0x03},
179 	/* DIFF not written */
180 		{0x03, 0x21, 0x00},
181 		/* DIFF (0x39) */
182 
183 /* Extra block copied from init to hopefully ensure CCD is in a sane state */
184 	{0x06, 0x10, 0x08},
185 	{0x06, 0x00, 0x09},
186 	{0x06, 0x00, 0x0a},
187 	{0x06, 0x00, 0x0b},
188 	{0x06, 0x10, 0x0c},
189 	{0x06, 0x00, 0x0d},
190 	{0x06, 0x00, 0x0e},
191 	{0x06, 0x00, 0x0f},
192 	{0x06, 0x10, 0x10},
193 	{0x06, 0x02, 0x11},
194 	{0x06, 0x00, 0x12},
195 	{0x06, 0x04, 0x13},
196 	{0x06, 0x02, 0x14},
197 	{0x06, 0x8a, 0x51},
198 	{0x06, 0x40, 0x52},
199 	{0x06, 0xb6, 0x53},
200 	{0x06, 0x3d, 0x54},
201 	/* End of extra block */
202 
203 		{0x06, 0x3f, 0x1},
204 		/* Block skipped */
205 	{0x06, 0x10, 0x02},
206 	{0x06, 0x64, 0x07},
207 	{0x06, 0x10, 0x08},
208 	{0x06, 0x00, 0x09},
209 	{0x06, 0x00, 0x0a},
210 	{0x06, 0x00, 0x0b},
211 	{0x06, 0x10, 0x0c},
212 	{0x06, 0x00, 0x0d},
213 	{0x06, 0x00, 0x0e},
214 	{0x06, 0x00, 0x0f},
215 	{0x06, 0x10, 0x10},
216 	{0x06, 0x02, 0x11},
217 	{0x06, 0x00, 0x12},
218 	{0x06, 0x04, 0x13},
219 	{0x06, 0x02, 0x14},
220 	{0x06, 0x8a, 0x51},
221 	{0x06, 0x40, 0x52},
222 	{0x06, 0xb6, 0x53},
223 	{0x06, 0x3d, 0x54},
224 	{0x06, 0x60, 0x57},
225 	{0x06, 0x20, 0x58},
226 	{0x06, 0x15, 0x59},
227 	{0x06, 0x05, 0x5a},
228 
229 	{0x05, 0x01, 0xc0},
230 	{0x05, 0x10, 0xcb},
231 		{0x05, 0x80, 0xc1},
232 		/* */
233 		{0x05, 0x0, 0xc2},
234 		/* 4 was 0 */
235 	{0x05, 0x00, 0xca},
236 		{0x05, 0x80, 0xc1},
237 		/*  */
238 	{0x05, 0x04, 0xc2},
239 	{0x05, 0x00, 0xca},
240 		{0x05, 0x0, 0xc1},
241 		/*  */
242 	{0x05, 0x00, 0xc2},
243 	{0x05, 0x00, 0xca},
244 		{0x05, 0x40, 0xc1},
245 		/* */
246 	{0x05, 0x17, 0xc2},
247 	{0x05, 0x00, 0xca},
248 		{0x05, 0x80, 0xc1},
249 		/* */
250 	{0x05, 0x06, 0xc2},
251 	{0x05, 0x00, 0xca},
252 		{0x05, 0x80, 0xc1},
253 		/* */
254 	{0x05, 0x04, 0xc2},
255 	{0x05, 0x00, 0xca},
256 
257 	{0x03, 0x4c, 0x3},
258 	{0x03, 0x18, 0x1},
259 
260 	{0x06, 0x70, 0x51},
261 	{0x06, 0xbe, 0x53},
262 	{0x06, 0x71, 0x57},
263 	{0x06, 0x20, 0x58},
264 	{0x06, 0x05, 0x59},
265 	{0x06, 0x15, 0x5a},
266 
267 	{0x04, 0x00, 0x08},
268 	/* Compress = OFF (0x1 to turn on) */
269 	{0x04, 0x12, 0x09},
270 	{0x04, 0x21, 0x0a},
271 	{0x04, 0x10, 0x0b},
272 	{0x04, 0x21, 0x0c},
273 	{0x04, 0x05, 0x00},
274 	/* was 5 (Image Type ? ) */
275 	{0x04, 0x00, 0x01},
276 
277 	{0x06, 0x3f, 0x01},
278 
279 	{0x04, 0x00, 0x04},
280 	{0x04, 0x00, 0x05},
281 	{0x04, 0x40, 0x06},
282 	{0x04, 0x40, 0x07},
283 
284 	{0x06, 0x1c, 0x17},
285 	{0x06, 0xe2, 0x19},
286 	{0x06, 0x1c, 0x1b},
287 	{0x06, 0xe2, 0x1d},
288 	{0x06, 0xaa, 0x1f},
289 	{0x06, 0x70, 0x20},
290 
291 	{0x05, 0x01, 0x10},
292 	{0x05, 0x00, 0x11},
293 	{0x05, 0x01, 0x00},
294 	{0x05, 0x05, 0x01},
295 		{0x05, 0x00, 0xc1},
296 		/* */
297 	{0x05, 0x00, 0xc2},
298 	{0x05, 0x00, 0xca},
299 
300 	{0x06, 0x70, 0x51},
301 	{0x06, 0xbe, 0x53},
302 	{}
303 };
304 
305 /*
306  * Made by Tomasz Zablocki (skalamandra@poczta.onet.pl)
307  * SPCA505b chip based cameras initialization data
308  */
309 /* jfm */
310 #define initial_brightness 0x7f	/* 0x0(white)-0xff(black) */
311 /* #define initial_brightness 0x0	//0x0(white)-0xff(black) */
312 /*
313  * Data to initialize a SPCA505. Common to the CCD and external modes
314  */
315 static const u8 spca505b_init_data[][3] = {
316 /* start */
317 	{0x02, 0x00, 0x00},		/* init */
318 	{0x02, 0x00, 0x01},
319 	{0x02, 0x00, 0x02},
320 	{0x02, 0x00, 0x03},
321 	{0x02, 0x00, 0x04},
322 	{0x02, 0x00, 0x05},
323 	{0x02, 0x00, 0x06},
324 	{0x02, 0x00, 0x07},
325 	{0x02, 0x00, 0x08},
326 	{0x02, 0x00, 0x09},
327 	{0x03, 0x00, 0x00},
328 	{0x03, 0x00, 0x01},
329 	{0x03, 0x00, 0x02},
330 	{0x03, 0x00, 0x03},
331 	{0x03, 0x00, 0x04},
332 	{0x03, 0x00, 0x05},
333 	{0x03, 0x00, 0x06},
334 	{0x04, 0x00, 0x00},
335 	{0x04, 0x00, 0x02},
336 	{0x04, 0x00, 0x04},
337 	{0x04, 0x00, 0x05},
338 	{0x04, 0x00, 0x06},
339 	{0x04, 0x00, 0x07},
340 	{0x04, 0x00, 0x08},
341 	{0x04, 0x00, 0x09},
342 	{0x04, 0x00, 0x0a},
343 	{0x04, 0x00, 0x0b},
344 	{0x04, 0x00, 0x0c},
345 	{0x07, 0x00, 0x00},
346 	{0x07, 0x00, 0x03},
347 	{0x08, 0x00, 0x00},
348 	{0x08, 0x00, 0x01},
349 	{0x08, 0x00, 0x02},
350 	{0x06, 0x18, 0x08},
351 	{0x06, 0xfc, 0x09},
352 	{0x06, 0xfc, 0x0a},
353 	{0x06, 0xfc, 0x0b},
354 	{0x06, 0x18, 0x0c},
355 	{0x06, 0xfc, 0x0d},
356 	{0x06, 0xfc, 0x0e},
357 	{0x06, 0xfc, 0x0f},
358 	{0x06, 0x18, 0x10},
359 	{0x06, 0xfe, 0x12},
360 	{0x06, 0x00, 0x11},
361 	{0x06, 0x00, 0x14},
362 	{0x06, 0x00, 0x13},
363 	{0x06, 0x28, 0x51},
364 	{0x06, 0xff, 0x53},
365 	{0x02, 0x00, 0x08},
366 
367 	{0x03, 0x00, 0x03},
368 	{0x03, 0x10, 0x03},
369 	{}
370 };
371 
372 /*
373  * Data to initialize the camera using the internal CCD
374  */
375 static const u8 spca505b_open_data_ccd[][3] = {
376 
377 /* {0x02,0x00,0x00}, */
378 	{0x03, 0x04, 0x01},		/* rst */
379 	{0x03, 0x00, 0x01},
380 	{0x03, 0x00, 0x00},
381 	{0x03, 0x21, 0x00},
382 	{0x03, 0x00, 0x04},
383 	{0x03, 0x00, 0x03},
384 	{0x03, 0x18, 0x03},
385 	{0x03, 0x08, 0x01},
386 	{0x03, 0x1c, 0x03},
387 	{0x03, 0x5c, 0x03},
388 	{0x03, 0x5c, 0x03},
389 	{0x03, 0x18, 0x01},
390 
391 /* same as 505 */
392 	{0x04, 0x10, 0x01},
393 	{0x04, 0x00, 0x04},
394 	{0x04, 0x00, 0x05},
395 	{0x04, 0x20, 0x06},
396 	{0x04, 0x20, 0x07},
397 
398 	{0x08, 0x0a, 0x00},
399 
400 	{0x05, 0x00, 0x10},
401 	{0x05, 0x00, 0x11},
402 	{0x05, 0x00, 0x12},
403 	{0x05, 0x6f, 0x00},
404 	{0x05, initial_brightness >> 6, 0x00},
405 	{0x05, (initial_brightness << 2) & 0xff, 0x01},
406 	{0x05, 0x00, 0x02},
407 	{0x05, 0x01, 0x03},
408 	{0x05, 0x00, 0x04},
409 	{0x05, 0x03, 0x05},
410 	{0x05, 0xe0, 0x06},
411 	{0x05, 0x20, 0x07},
412 	{0x05, 0xa0, 0x08},
413 	{0x05, 0x00, 0x12},
414 	{0x05, 0x02, 0x0f},
415 	{0x05, 0x80, 0x14},		/* max exposure off (0=on) */
416 	{0x05, 0x01, 0xb0},
417 	{0x05, 0x01, 0xbf},
418 	{0x03, 0x02, 0x06},
419 	{0x05, 0x10, 0x46},
420 	{0x05, 0x08, 0x4a},
421 
422 	{0x06, 0x00, 0x01},
423 	{0x06, 0x10, 0x02},
424 	{0x06, 0x64, 0x07},
425 	{0x06, 0x18, 0x08},
426 	{0x06, 0xfc, 0x09},
427 	{0x06, 0xfc, 0x0a},
428 	{0x06, 0xfc, 0x0b},
429 	{0x04, 0x00, 0x01},
430 	{0x06, 0x18, 0x0c},
431 	{0x06, 0xfc, 0x0d},
432 	{0x06, 0xfc, 0x0e},
433 	{0x06, 0xfc, 0x0f},
434 	{0x06, 0x11, 0x10},		/* contrast */
435 	{0x06, 0x00, 0x11},
436 	{0x06, 0xfe, 0x12},
437 	{0x06, 0x00, 0x13},
438 	{0x06, 0x00, 0x14},
439 	{0x06, 0x9d, 0x51},
440 	{0x06, 0x40, 0x52},
441 	{0x06, 0x7c, 0x53},
442 	{0x06, 0x40, 0x54},
443 	{0x06, 0x02, 0x57},
444 	{0x06, 0x03, 0x58},
445 	{0x06, 0x15, 0x59},
446 	{0x06, 0x05, 0x5a},
447 	{0x06, 0x03, 0x56},
448 	{0x06, 0x02, 0x3f},
449 	{0x06, 0x00, 0x40},
450 	{0x06, 0x39, 0x41},
451 	{0x06, 0x69, 0x42},
452 	{0x06, 0x87, 0x43},
453 	{0x06, 0x9e, 0x44},
454 	{0x06, 0xb1, 0x45},
455 	{0x06, 0xbf, 0x46},
456 	{0x06, 0xcc, 0x47},
457 	{0x06, 0xd5, 0x48},
458 	{0x06, 0xdd, 0x49},
459 	{0x06, 0xe3, 0x4a},
460 	{0x06, 0xe8, 0x4b},
461 	{0x06, 0xed, 0x4c},
462 	{0x06, 0xf2, 0x4d},
463 	{0x06, 0xf7, 0x4e},
464 	{0x06, 0xfc, 0x4f},
465 	{0x06, 0xff, 0x50},
466 
467 	{0x05, 0x01, 0xc0},
468 	{0x05, 0x10, 0xcb},
469 	{0x05, 0x40, 0xc1},
470 	{0x05, 0x04, 0xc2},
471 	{0x05, 0x00, 0xca},
472 	{0x05, 0x40, 0xc1},
473 	{0x05, 0x09, 0xc2},
474 	{0x05, 0x00, 0xca},
475 	{0x05, 0xc0, 0xc1},
476 	{0x05, 0x09, 0xc2},
477 	{0x05, 0x00, 0xca},
478 	{0x05, 0x40, 0xc1},
479 	{0x05, 0x59, 0xc2},
480 	{0x05, 0x00, 0xca},
481 	{0x04, 0x00, 0x01},
482 	{0x05, 0x80, 0xc1},
483 	{0x05, 0xec, 0xc2},
484 	{0x05, 0x0, 0xca},
485 
486 	{0x06, 0x02, 0x57},
487 	{0x06, 0x01, 0x58},
488 	{0x06, 0x15, 0x59},
489 	{0x06, 0x0a, 0x5a},
490 	{0x06, 0x01, 0x57},
491 	{0x06, 0x8a, 0x03},
492 	{0x06, 0x0a, 0x6c},
493 	{0x06, 0x30, 0x01},
494 	{0x06, 0x20, 0x02},
495 	{0x06, 0x00, 0x03},
496 
497 	{0x05, 0x8c, 0x25},
498 
499 	{0x06, 0x4d, 0x51},		/* maybe saturation (4d) */
500 	{0x06, 0x84, 0x53},		/* making green (84) */
501 	{0x06, 0x00, 0x57},		/* sharpness (1) */
502 	{0x06, 0x18, 0x08},
503 	{0x06, 0xfc, 0x09},
504 	{0x06, 0xfc, 0x0a},
505 	{0x06, 0xfc, 0x0b},
506 	{0x06, 0x18, 0x0c},		/* maybe hue (18) */
507 	{0x06, 0xfc, 0x0d},
508 	{0x06, 0xfc, 0x0e},
509 	{0x06, 0xfc, 0x0f},
510 	{0x06, 0x18, 0x10},		/* maybe contrast (18) */
511 
512 	{0x05, 0x01, 0x02},
513 
514 	{0x04, 0x00, 0x08},		/* compression */
515 	{0x04, 0x12, 0x09},
516 	{0x04, 0x21, 0x0a},
517 	{0x04, 0x10, 0x0b},
518 	{0x04, 0x21, 0x0c},
519 	{0x04, 0x1d, 0x00},		/* imagetype (1d) */
520 	{0x04, 0x41, 0x01},		/* hardware snapcontrol */
521 
522 	{0x04, 0x00, 0x04},
523 	{0x04, 0x00, 0x05},
524 	{0x04, 0x10, 0x06},
525 	{0x04, 0x10, 0x07},
526 	{0x04, 0x40, 0x06},
527 	{0x04, 0x40, 0x07},
528 	{0x04, 0x00, 0x04},
529 	{0x04, 0x00, 0x05},
530 
531 	{0x06, 0x1c, 0x17},
532 	{0x06, 0xe2, 0x19},
533 	{0x06, 0x1c, 0x1b},
534 	{0x06, 0xe2, 0x1d},
535 	{0x06, 0x5f, 0x1f},
536 	{0x06, 0x32, 0x20},
537 
538 	{0x05, initial_brightness >> 6, 0x00},
539 	{0x05, (initial_brightness << 2) & 0xff, 0x01},
540 	{0x05, 0x06, 0xc1},
541 	{0x05, 0x58, 0xc2},
542 	{0x05, 0x00, 0xca},
543 	{0x05, 0x00, 0x11},
544 	{}
545 };
546 
547 static int reg_write(struct gspca_dev *gspca_dev,
548 		     u16 req, u16 index, u16 value)
549 {
550 	int ret;
551 	struct usb_device *dev = gspca_dev->dev;
552 
553 	ret = usb_control_msg(dev,
554 			usb_sndctrlpipe(dev, 0),
555 			req,
556 			USB_TYPE_VENDOR | USB_RECIP_DEVICE,
557 			value, index, NULL, 0, 500);
558 	PDEBUG(D_USBO, "reg write: 0x%02x,0x%02x:0x%02x, %d",
559 		req, index, value, ret);
560 	if (ret < 0)
561 		pr_err("reg write: error %d\n", ret);
562 	return ret;
563 }
564 
565 /* returns: negative is error, pos or zero is data */
566 static int reg_read(struct gspca_dev *gspca_dev,
567 			u16 req,	/* bRequest */
568 			u16 index)	/* wIndex */
569 {
570 	int ret;
571 
572 	ret = usb_control_msg(gspca_dev->dev,
573 			usb_rcvctrlpipe(gspca_dev->dev, 0),
574 			req,
575 			USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
576 			0,			/* value */
577 			index,
578 			gspca_dev->usb_buf, 2,
579 			500);			/* timeout */
580 	if (ret < 0)
581 		return ret;
582 	return (gspca_dev->usb_buf[1] << 8) + gspca_dev->usb_buf[0];
583 }
584 
585 static int write_vector(struct gspca_dev *gspca_dev,
586 			const u8 data[][3])
587 {
588 	int ret, i = 0;
589 
590 	while (data[i][0] != 0) {
591 		ret = reg_write(gspca_dev, data[i][0], data[i][2],
592 								data[i][1]);
593 		if (ret < 0)
594 			return ret;
595 		i++;
596 	}
597 	return 0;
598 }
599 
600 /* this function is called at probe time */
601 static int sd_config(struct gspca_dev *gspca_dev,
602 			const struct usb_device_id *id)
603 {
604 	struct sd *sd = (struct sd *) gspca_dev;
605 	struct cam *cam;
606 
607 	cam = &gspca_dev->cam;
608 	cam->cam_mode = vga_mode;
609 	sd->subtype = id->driver_info;
610 	if (sd->subtype != IntelPCCameraPro)
611 		cam->nmodes = ARRAY_SIZE(vga_mode);
612 	else			/* no 640x480 for IntelPCCameraPro */
613 		cam->nmodes = ARRAY_SIZE(vga_mode) - 1;
614 
615 	return 0;
616 }
617 
618 /* this function is called at probe and resume time */
619 static int sd_init(struct gspca_dev *gspca_dev)
620 {
621 	struct sd *sd = (struct sd *) gspca_dev;
622 
623 	if (write_vector(gspca_dev,
624 			 sd->subtype == Nxultra
625 				? spca505b_init_data
626 				: spca505_init_data))
627 		return -EIO;
628 	return 0;
629 }
630 
631 static void setbrightness(struct gspca_dev *gspca_dev, s32 brightness)
632 {
633 	reg_write(gspca_dev, 0x05, 0x00, (255 - brightness) >> 6);
634 	reg_write(gspca_dev, 0x05, 0x01, (255 - brightness) << 2);
635 }
636 
637 static int sd_start(struct gspca_dev *gspca_dev)
638 {
639 	struct sd *sd = (struct sd *) gspca_dev;
640 	int ret, mode;
641 	static u8 mode_tb[][3] = {
642 	/*	  r00   r06   r07	*/
643 		{0x00, 0x10, 0x10},	/* 640x480 */
644 		{0x01, 0x1a, 0x1a},	/* 352x288 */
645 		{0x02, 0x1c, 0x1d},	/* 320x240 */
646 		{0x04, 0x34, 0x34},	/* 176x144 */
647 		{0x05, 0x40, 0x40}	/* 160x120 */
648 	};
649 
650 	if (sd->subtype == Nxultra)
651 		write_vector(gspca_dev, spca505b_open_data_ccd);
652 	else
653 		write_vector(gspca_dev, spca505_open_data_ccd);
654 	ret = reg_read(gspca_dev, 0x06, 0x16);
655 
656 	if (ret < 0) {
657 		PERR("register read failed err: %d", ret);
658 		return ret;
659 	}
660 	if (ret != 0x0101) {
661 		pr_err("After vector read returns 0x%04x should be 0x0101\n",
662 		       ret);
663 	}
664 
665 	ret = reg_write(gspca_dev, 0x06, 0x16, 0x0a);
666 	if (ret < 0)
667 		return ret;
668 	reg_write(gspca_dev, 0x05, 0xc2, 0x12);
669 
670 	/* necessary because without it we can see stream
671 	 * only once after loading module */
672 	/* stopping usb registers Tomasz change */
673 	reg_write(gspca_dev, 0x02, 0x00, 0x00);
674 
675 	mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
676 	reg_write(gspca_dev, SPCA50X_REG_COMPRESS, 0x00, mode_tb[mode][0]);
677 	reg_write(gspca_dev, SPCA50X_REG_COMPRESS, 0x06, mode_tb[mode][1]);
678 	reg_write(gspca_dev, SPCA50X_REG_COMPRESS, 0x07, mode_tb[mode][2]);
679 
680 	return reg_write(gspca_dev, SPCA50X_REG_USB,
681 			 SPCA50X_USB_CTRL,
682 			 SPCA50X_CUSB_ENABLE);
683 }
684 
685 static void sd_stopN(struct gspca_dev *gspca_dev)
686 {
687 	/* Disable ISO packet machine */
688 	reg_write(gspca_dev, 0x02, 0x00, 0x00);
689 }
690 
691 /* called on streamoff with alt 0 and on disconnect */
692 static void sd_stop0(struct gspca_dev *gspca_dev)
693 {
694 	if (!gspca_dev->present)
695 		return;
696 
697 	/* This maybe reset or power control */
698 	reg_write(gspca_dev, 0x03, 0x03, 0x20);
699 	reg_write(gspca_dev, 0x03, 0x01, 0x00);
700 	reg_write(gspca_dev, 0x03, 0x00, 0x01);
701 	reg_write(gspca_dev, 0x05, 0x10, 0x01);
702 	reg_write(gspca_dev, 0x05, 0x11, 0x0f);
703 }
704 
705 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
706 			u8 *data,			/* isoc packet */
707 			int len)			/* iso packet length */
708 {
709 	switch (data[0]) {
710 	case 0:				/* start of frame */
711 		gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
712 		data += SPCA50X_OFFSET_DATA;
713 		len -= SPCA50X_OFFSET_DATA;
714 		gspca_frame_add(gspca_dev, FIRST_PACKET, data, len);
715 		break;
716 	case 0xff:			/* drop */
717 		break;
718 	default:
719 		data += 1;
720 		len -= 1;
721 		gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
722 		break;
723 	}
724 }
725 
726 static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
727 {
728 	struct gspca_dev *gspca_dev =
729 		container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
730 
731 	gspca_dev->usb_err = 0;
732 
733 	if (!gspca_dev->streaming)
734 		return 0;
735 
736 	switch (ctrl->id) {
737 	case V4L2_CID_BRIGHTNESS:
738 		setbrightness(gspca_dev, ctrl->val);
739 		break;
740 	}
741 	return gspca_dev->usb_err;
742 }
743 
744 static const struct v4l2_ctrl_ops sd_ctrl_ops = {
745 	.s_ctrl = sd_s_ctrl,
746 };
747 
748 static int sd_init_controls(struct gspca_dev *gspca_dev)
749 {
750 	struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
751 
752 	gspca_dev->vdev.ctrl_handler = hdl;
753 	v4l2_ctrl_handler_init(hdl, 5);
754 	v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
755 			V4L2_CID_BRIGHTNESS, 0, 255, 1, 127);
756 
757 	if (hdl->error) {
758 		pr_err("Could not initialize controls\n");
759 		return hdl->error;
760 	}
761 	return 0;
762 }
763 
764 /* sub-driver description */
765 static const struct sd_desc sd_desc = {
766 	.name = MODULE_NAME,
767 	.config = sd_config,
768 	.init_controls = sd_init_controls,
769 	.init = sd_init,
770 	.start = sd_start,
771 	.stopN = sd_stopN,
772 	.stop0 = sd_stop0,
773 	.pkt_scan = sd_pkt_scan,
774 };
775 
776 /* -- module initialisation -- */
777 static const struct usb_device_id device_table[] = {
778 	{USB_DEVICE(0x041e, 0x401d), .driver_info = Nxultra},
779 	{USB_DEVICE(0x0733, 0x0430), .driver_info = IntelPCCameraPro},
780 /*fixme: may be UsbGrabberPV321 BRIDGE_SPCA506 SENSOR_SAA7113 */
781 	{}
782 };
783 MODULE_DEVICE_TABLE(usb, device_table);
784 
785 /* -- device connect -- */
786 static int sd_probe(struct usb_interface *intf,
787 			const struct usb_device_id *id)
788 {
789 	return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
790 				THIS_MODULE);
791 }
792 
793 static struct usb_driver sd_driver = {
794 	.name = MODULE_NAME,
795 	.id_table = device_table,
796 	.probe = sd_probe,
797 	.disconnect = gspca_disconnect,
798 #ifdef CONFIG_PM
799 	.suspend = gspca_suspend,
800 	.resume = gspca_resume,
801 	.reset_resume = gspca_resume,
802 #endif
803 };
804 
805 module_usb_driver(sd_driver);
806