xref: /openbmc/linux/drivers/media/usb/gspca/spca505.c (revision 2a598d0b)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * SPCA505 chip based cameras initialization data
4  *
5  * V4L2 by Jean-Francis Moine <http://moinejf.free.fr>
6  */
7 
8 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
9 
10 #define MODULE_NAME "spca505"
11 
12 #include "gspca.h"
13 
14 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
15 MODULE_DESCRIPTION("GSPCA/SPCA505 USB Camera Driver");
16 MODULE_LICENSE("GPL");
17 
18 /* specific webcam descriptor */
19 struct sd {
20 	struct gspca_dev gspca_dev;		/* !! must be the first item */
21 
22 	u8 subtype;
23 #define IntelPCCameraPro 0
24 #define Nxultra 1
25 };
26 
27 static const struct v4l2_pix_format vga_mode[] = {
28 	{160, 120, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
29 		.bytesperline = 160,
30 		.sizeimage = 160 * 120 * 3 / 2,
31 		.colorspace = V4L2_COLORSPACE_SRGB,
32 		.priv = 4},
33 	{176, 144, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
34 		.bytesperline = 176,
35 		.sizeimage = 176 * 144 * 3 / 2,
36 		.colorspace = V4L2_COLORSPACE_SRGB,
37 		.priv = 3},
38 	{320, 240, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
39 		.bytesperline = 320,
40 		.sizeimage = 320 * 240 * 3 / 2,
41 		.colorspace = V4L2_COLORSPACE_SRGB,
42 		.priv = 2},
43 	{352, 288, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
44 		.bytesperline = 352,
45 		.sizeimage = 352 * 288 * 3 / 2,
46 		.colorspace = V4L2_COLORSPACE_SRGB,
47 		.priv = 1},
48 	{640, 480, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
49 		.bytesperline = 640,
50 		.sizeimage = 640 * 480 * 3 / 2,
51 		.colorspace = V4L2_COLORSPACE_SRGB,
52 		.priv = 0},
53 };
54 
55 #define SPCA50X_OFFSET_DATA 10
56 
57 #define SPCA50X_REG_USB 0x02	/* spca505 501 */
58 
59 #define SPCA50X_USB_CTRL 0x00	/* spca505 */
60 #define SPCA50X_CUSB_ENABLE 0x01 /* spca505 */
61 
62 #define SPCA50X_REG_GLOBAL 0x03	/* spca505 */
63 #define SPCA50X_GMISC0_IDSEL 0x01 /* Global control device ID select spca505 */
64 #define SPCA50X_GLOBAL_MISC0 0x00 /* Global control miscellaneous 0 spca505 */
65 
66 #define SPCA50X_GLOBAL_MISC1 0x01 /* 505 */
67 #define SPCA50X_GLOBAL_MISC3 0x03 /* 505 */
68 #define SPCA50X_GMISC3_SAA7113RST 0x20	/* Not sure about this one spca505 */
69 
70 /* Image format and compression control */
71 #define SPCA50X_REG_COMPRESS 0x04
72 
73 /*
74  * Data to initialize a SPCA505. Common to the CCD and external modes
75  */
76 static const u8 spca505_init_data[][3] = {
77 	/* bmRequest,value,index */
78 	{SPCA50X_REG_GLOBAL, SPCA50X_GMISC3_SAA7113RST, SPCA50X_GLOBAL_MISC3},
79 	/* Sensor reset */
80 	{SPCA50X_REG_GLOBAL, 0x00, SPCA50X_GLOBAL_MISC3},
81 	{SPCA50X_REG_GLOBAL, 0x00, SPCA50X_GLOBAL_MISC1},
82 	/* Block USB reset */
83 	{SPCA50X_REG_GLOBAL, SPCA50X_GMISC0_IDSEL, SPCA50X_GLOBAL_MISC0},
84 
85 	{0x05, 0x01, 0x10},
86 					/* Maybe power down some stuff */
87 	{0x05, 0x0f, 0x11},
88 
89 	/* Setup internal CCD  ? */
90 	{0x06, 0x10, 0x08},
91 	{0x06, 0x00, 0x09},
92 	{0x06, 0x00, 0x0a},
93 	{0x06, 0x00, 0x0b},
94 	{0x06, 0x10, 0x0c},
95 	{0x06, 0x00, 0x0d},
96 	{0x06, 0x00, 0x0e},
97 	{0x06, 0x00, 0x0f},
98 	{0x06, 0x10, 0x10},
99 	{0x06, 0x02, 0x11},
100 	{0x06, 0x00, 0x12},
101 	{0x06, 0x04, 0x13},
102 	{0x06, 0x02, 0x14},
103 	{0x06, 0x8a, 0x51},
104 	{0x06, 0x40, 0x52},
105 	{0x06, 0xb6, 0x53},
106 	{0x06, 0x3d, 0x54},
107 	{}
108 };
109 
110 /*
111  * Data to initialize the camera using the internal CCD
112  */
113 static const u8 spca505_open_data_ccd[][3] = {
114 	/* bmRequest,value,index */
115 	/* Internal CCD data set */
116 	{0x03, 0x04, 0x01},
117 	/* This could be a reset */
118 	{0x03, 0x00, 0x01},
119 
120 	/* Setup compression and image registers. 0x6 and 0x7 seem to be
121 	   related to H&V hold, and are resolution mode specific */
122 		{0x04, 0x10, 0x01},
123 		/* DIFF(0x50), was (0x10) */
124 	{0x04, 0x00, 0x04},
125 	{0x04, 0x00, 0x05},
126 	{0x04, 0x20, 0x06},
127 	{0x04, 0x20, 0x07},
128 
129 	{0x08, 0x0a, 0x00},
130 	/* DIFF (0x4a), was (0xa) */
131 
132 	{0x05, 0x00, 0x10},
133 	{0x05, 0x00, 0x11},
134 	{0x05, 0x00, 0x00},
135 	/* DIFF not written */
136 	{0x05, 0x00, 0x01},
137 	/* DIFF not written */
138 	{0x05, 0x00, 0x02},
139 	/* DIFF not written */
140 	{0x05, 0x00, 0x03},
141 	/* DIFF not written */
142 	{0x05, 0x00, 0x04},
143 	/* DIFF not written */
144 		{0x05, 0x80, 0x05},
145 		/* DIFF not written */
146 		{0x05, 0xe0, 0x06},
147 		/* DIFF not written */
148 		{0x05, 0x20, 0x07},
149 		/* DIFF not written */
150 		{0x05, 0xa0, 0x08},
151 		/* DIFF not written */
152 		{0x05, 0x0, 0x12},
153 		/* DIFF not written */
154 	{0x05, 0x02, 0x0f},
155 	/* DIFF not written */
156 		{0x05, 0x10, 0x46},
157 		/* DIFF not written */
158 		{0x05, 0x8, 0x4a},
159 		/* DIFF not written */
160 
161 	{0x03, 0x08, 0x03},
162 	/* DIFF (0x3,0x28,0x3) */
163 	{0x03, 0x08, 0x01},
164 	{0x03, 0x0c, 0x03},
165 	/* DIFF not written */
166 		{0x03, 0x21, 0x00},
167 		/* DIFF (0x39) */
168 
169 /* Extra block copied from init to hopefully ensure CCD is in a sane state */
170 	{0x06, 0x10, 0x08},
171 	{0x06, 0x00, 0x09},
172 	{0x06, 0x00, 0x0a},
173 	{0x06, 0x00, 0x0b},
174 	{0x06, 0x10, 0x0c},
175 	{0x06, 0x00, 0x0d},
176 	{0x06, 0x00, 0x0e},
177 	{0x06, 0x00, 0x0f},
178 	{0x06, 0x10, 0x10},
179 	{0x06, 0x02, 0x11},
180 	{0x06, 0x00, 0x12},
181 	{0x06, 0x04, 0x13},
182 	{0x06, 0x02, 0x14},
183 	{0x06, 0x8a, 0x51},
184 	{0x06, 0x40, 0x52},
185 	{0x06, 0xb6, 0x53},
186 	{0x06, 0x3d, 0x54},
187 	/* End of extra block */
188 
189 		{0x06, 0x3f, 0x1},
190 		/* Block skipped */
191 	{0x06, 0x10, 0x02},
192 	{0x06, 0x64, 0x07},
193 	{0x06, 0x10, 0x08},
194 	{0x06, 0x00, 0x09},
195 	{0x06, 0x00, 0x0a},
196 	{0x06, 0x00, 0x0b},
197 	{0x06, 0x10, 0x0c},
198 	{0x06, 0x00, 0x0d},
199 	{0x06, 0x00, 0x0e},
200 	{0x06, 0x00, 0x0f},
201 	{0x06, 0x10, 0x10},
202 	{0x06, 0x02, 0x11},
203 	{0x06, 0x00, 0x12},
204 	{0x06, 0x04, 0x13},
205 	{0x06, 0x02, 0x14},
206 	{0x06, 0x8a, 0x51},
207 	{0x06, 0x40, 0x52},
208 	{0x06, 0xb6, 0x53},
209 	{0x06, 0x3d, 0x54},
210 	{0x06, 0x60, 0x57},
211 	{0x06, 0x20, 0x58},
212 	{0x06, 0x15, 0x59},
213 	{0x06, 0x05, 0x5a},
214 
215 	{0x05, 0x01, 0xc0},
216 	{0x05, 0x10, 0xcb},
217 		{0x05, 0x80, 0xc1},
218 		/* */
219 		{0x05, 0x0, 0xc2},
220 		/* 4 was 0 */
221 	{0x05, 0x00, 0xca},
222 		{0x05, 0x80, 0xc1},
223 		/*  */
224 	{0x05, 0x04, 0xc2},
225 	{0x05, 0x00, 0xca},
226 		{0x05, 0x0, 0xc1},
227 		/*  */
228 	{0x05, 0x00, 0xc2},
229 	{0x05, 0x00, 0xca},
230 		{0x05, 0x40, 0xc1},
231 		/* */
232 	{0x05, 0x17, 0xc2},
233 	{0x05, 0x00, 0xca},
234 		{0x05, 0x80, 0xc1},
235 		/* */
236 	{0x05, 0x06, 0xc2},
237 	{0x05, 0x00, 0xca},
238 		{0x05, 0x80, 0xc1},
239 		/* */
240 	{0x05, 0x04, 0xc2},
241 	{0x05, 0x00, 0xca},
242 
243 	{0x03, 0x4c, 0x3},
244 	{0x03, 0x18, 0x1},
245 
246 	{0x06, 0x70, 0x51},
247 	{0x06, 0xbe, 0x53},
248 	{0x06, 0x71, 0x57},
249 	{0x06, 0x20, 0x58},
250 	{0x06, 0x05, 0x59},
251 	{0x06, 0x15, 0x5a},
252 
253 	{0x04, 0x00, 0x08},
254 	/* Compress = OFF (0x1 to turn on) */
255 	{0x04, 0x12, 0x09},
256 	{0x04, 0x21, 0x0a},
257 	{0x04, 0x10, 0x0b},
258 	{0x04, 0x21, 0x0c},
259 	{0x04, 0x05, 0x00},
260 	/* was 5 (Image Type ? ) */
261 	{0x04, 0x00, 0x01},
262 
263 	{0x06, 0x3f, 0x01},
264 
265 	{0x04, 0x00, 0x04},
266 	{0x04, 0x00, 0x05},
267 	{0x04, 0x40, 0x06},
268 	{0x04, 0x40, 0x07},
269 
270 	{0x06, 0x1c, 0x17},
271 	{0x06, 0xe2, 0x19},
272 	{0x06, 0x1c, 0x1b},
273 	{0x06, 0xe2, 0x1d},
274 	{0x06, 0xaa, 0x1f},
275 	{0x06, 0x70, 0x20},
276 
277 	{0x05, 0x01, 0x10},
278 	{0x05, 0x00, 0x11},
279 	{0x05, 0x01, 0x00},
280 	{0x05, 0x05, 0x01},
281 		{0x05, 0x00, 0xc1},
282 		/* */
283 	{0x05, 0x00, 0xc2},
284 	{0x05, 0x00, 0xca},
285 
286 	{0x06, 0x70, 0x51},
287 	{0x06, 0xbe, 0x53},
288 	{}
289 };
290 
291 /*
292  * Made by Tomasz Zablocki (skalamandra@poczta.onet.pl)
293  * SPCA505b chip based cameras initialization data
294  */
295 /* jfm */
296 #define initial_brightness 0x7f	/* 0x0(white)-0xff(black) */
297 /* #define initial_brightness 0x0	//0x0(white)-0xff(black) */
298 /*
299  * Data to initialize a SPCA505. Common to the CCD and external modes
300  */
301 static const u8 spca505b_init_data[][3] = {
302 /* start */
303 	{0x02, 0x00, 0x00},		/* init */
304 	{0x02, 0x00, 0x01},
305 	{0x02, 0x00, 0x02},
306 	{0x02, 0x00, 0x03},
307 	{0x02, 0x00, 0x04},
308 	{0x02, 0x00, 0x05},
309 	{0x02, 0x00, 0x06},
310 	{0x02, 0x00, 0x07},
311 	{0x02, 0x00, 0x08},
312 	{0x02, 0x00, 0x09},
313 	{0x03, 0x00, 0x00},
314 	{0x03, 0x00, 0x01},
315 	{0x03, 0x00, 0x02},
316 	{0x03, 0x00, 0x03},
317 	{0x03, 0x00, 0x04},
318 	{0x03, 0x00, 0x05},
319 	{0x03, 0x00, 0x06},
320 	{0x04, 0x00, 0x00},
321 	{0x04, 0x00, 0x02},
322 	{0x04, 0x00, 0x04},
323 	{0x04, 0x00, 0x05},
324 	{0x04, 0x00, 0x06},
325 	{0x04, 0x00, 0x07},
326 	{0x04, 0x00, 0x08},
327 	{0x04, 0x00, 0x09},
328 	{0x04, 0x00, 0x0a},
329 	{0x04, 0x00, 0x0b},
330 	{0x04, 0x00, 0x0c},
331 	{0x07, 0x00, 0x00},
332 	{0x07, 0x00, 0x03},
333 	{0x08, 0x00, 0x00},
334 	{0x08, 0x00, 0x01},
335 	{0x08, 0x00, 0x02},
336 	{0x06, 0x18, 0x08},
337 	{0x06, 0xfc, 0x09},
338 	{0x06, 0xfc, 0x0a},
339 	{0x06, 0xfc, 0x0b},
340 	{0x06, 0x18, 0x0c},
341 	{0x06, 0xfc, 0x0d},
342 	{0x06, 0xfc, 0x0e},
343 	{0x06, 0xfc, 0x0f},
344 	{0x06, 0x18, 0x10},
345 	{0x06, 0xfe, 0x12},
346 	{0x06, 0x00, 0x11},
347 	{0x06, 0x00, 0x14},
348 	{0x06, 0x00, 0x13},
349 	{0x06, 0x28, 0x51},
350 	{0x06, 0xff, 0x53},
351 	{0x02, 0x00, 0x08},
352 
353 	{0x03, 0x00, 0x03},
354 	{0x03, 0x10, 0x03},
355 	{}
356 };
357 
358 /*
359  * Data to initialize the camera using the internal CCD
360  */
361 static const u8 spca505b_open_data_ccd[][3] = {
362 
363 /* {0x02,0x00,0x00}, */
364 	{0x03, 0x04, 0x01},		/* rst */
365 	{0x03, 0x00, 0x01},
366 	{0x03, 0x00, 0x00},
367 	{0x03, 0x21, 0x00},
368 	{0x03, 0x00, 0x04},
369 	{0x03, 0x00, 0x03},
370 	{0x03, 0x18, 0x03},
371 	{0x03, 0x08, 0x01},
372 	{0x03, 0x1c, 0x03},
373 	{0x03, 0x5c, 0x03},
374 	{0x03, 0x5c, 0x03},
375 	{0x03, 0x18, 0x01},
376 
377 /* same as 505 */
378 	{0x04, 0x10, 0x01},
379 	{0x04, 0x00, 0x04},
380 	{0x04, 0x00, 0x05},
381 	{0x04, 0x20, 0x06},
382 	{0x04, 0x20, 0x07},
383 
384 	{0x08, 0x0a, 0x00},
385 
386 	{0x05, 0x00, 0x10},
387 	{0x05, 0x00, 0x11},
388 	{0x05, 0x00, 0x12},
389 	{0x05, 0x6f, 0x00},
390 	{0x05, initial_brightness >> 6, 0x00},
391 	{0x05, (initial_brightness << 2) & 0xff, 0x01},
392 	{0x05, 0x00, 0x02},
393 	{0x05, 0x01, 0x03},
394 	{0x05, 0x00, 0x04},
395 	{0x05, 0x03, 0x05},
396 	{0x05, 0xe0, 0x06},
397 	{0x05, 0x20, 0x07},
398 	{0x05, 0xa0, 0x08},
399 	{0x05, 0x00, 0x12},
400 	{0x05, 0x02, 0x0f},
401 	{0x05, 0x80, 0x14},		/* max exposure off (0=on) */
402 	{0x05, 0x01, 0xb0},
403 	{0x05, 0x01, 0xbf},
404 	{0x03, 0x02, 0x06},
405 	{0x05, 0x10, 0x46},
406 	{0x05, 0x08, 0x4a},
407 
408 	{0x06, 0x00, 0x01},
409 	{0x06, 0x10, 0x02},
410 	{0x06, 0x64, 0x07},
411 	{0x06, 0x18, 0x08},
412 	{0x06, 0xfc, 0x09},
413 	{0x06, 0xfc, 0x0a},
414 	{0x06, 0xfc, 0x0b},
415 	{0x04, 0x00, 0x01},
416 	{0x06, 0x18, 0x0c},
417 	{0x06, 0xfc, 0x0d},
418 	{0x06, 0xfc, 0x0e},
419 	{0x06, 0xfc, 0x0f},
420 	{0x06, 0x11, 0x10},		/* contrast */
421 	{0x06, 0x00, 0x11},
422 	{0x06, 0xfe, 0x12},
423 	{0x06, 0x00, 0x13},
424 	{0x06, 0x00, 0x14},
425 	{0x06, 0x9d, 0x51},
426 	{0x06, 0x40, 0x52},
427 	{0x06, 0x7c, 0x53},
428 	{0x06, 0x40, 0x54},
429 	{0x06, 0x02, 0x57},
430 	{0x06, 0x03, 0x58},
431 	{0x06, 0x15, 0x59},
432 	{0x06, 0x05, 0x5a},
433 	{0x06, 0x03, 0x56},
434 	{0x06, 0x02, 0x3f},
435 	{0x06, 0x00, 0x40},
436 	{0x06, 0x39, 0x41},
437 	{0x06, 0x69, 0x42},
438 	{0x06, 0x87, 0x43},
439 	{0x06, 0x9e, 0x44},
440 	{0x06, 0xb1, 0x45},
441 	{0x06, 0xbf, 0x46},
442 	{0x06, 0xcc, 0x47},
443 	{0x06, 0xd5, 0x48},
444 	{0x06, 0xdd, 0x49},
445 	{0x06, 0xe3, 0x4a},
446 	{0x06, 0xe8, 0x4b},
447 	{0x06, 0xed, 0x4c},
448 	{0x06, 0xf2, 0x4d},
449 	{0x06, 0xf7, 0x4e},
450 	{0x06, 0xfc, 0x4f},
451 	{0x06, 0xff, 0x50},
452 
453 	{0x05, 0x01, 0xc0},
454 	{0x05, 0x10, 0xcb},
455 	{0x05, 0x40, 0xc1},
456 	{0x05, 0x04, 0xc2},
457 	{0x05, 0x00, 0xca},
458 	{0x05, 0x40, 0xc1},
459 	{0x05, 0x09, 0xc2},
460 	{0x05, 0x00, 0xca},
461 	{0x05, 0xc0, 0xc1},
462 	{0x05, 0x09, 0xc2},
463 	{0x05, 0x00, 0xca},
464 	{0x05, 0x40, 0xc1},
465 	{0x05, 0x59, 0xc2},
466 	{0x05, 0x00, 0xca},
467 	{0x04, 0x00, 0x01},
468 	{0x05, 0x80, 0xc1},
469 	{0x05, 0xec, 0xc2},
470 	{0x05, 0x0, 0xca},
471 
472 	{0x06, 0x02, 0x57},
473 	{0x06, 0x01, 0x58},
474 	{0x06, 0x15, 0x59},
475 	{0x06, 0x0a, 0x5a},
476 	{0x06, 0x01, 0x57},
477 	{0x06, 0x8a, 0x03},
478 	{0x06, 0x0a, 0x6c},
479 	{0x06, 0x30, 0x01},
480 	{0x06, 0x20, 0x02},
481 	{0x06, 0x00, 0x03},
482 
483 	{0x05, 0x8c, 0x25},
484 
485 	{0x06, 0x4d, 0x51},		/* maybe saturation (4d) */
486 	{0x06, 0x84, 0x53},		/* making green (84) */
487 	{0x06, 0x00, 0x57},		/* sharpness (1) */
488 	{0x06, 0x18, 0x08},
489 	{0x06, 0xfc, 0x09},
490 	{0x06, 0xfc, 0x0a},
491 	{0x06, 0xfc, 0x0b},
492 	{0x06, 0x18, 0x0c},		/* maybe hue (18) */
493 	{0x06, 0xfc, 0x0d},
494 	{0x06, 0xfc, 0x0e},
495 	{0x06, 0xfc, 0x0f},
496 	{0x06, 0x18, 0x10},		/* maybe contrast (18) */
497 
498 	{0x05, 0x01, 0x02},
499 
500 	{0x04, 0x00, 0x08},		/* compression */
501 	{0x04, 0x12, 0x09},
502 	{0x04, 0x21, 0x0a},
503 	{0x04, 0x10, 0x0b},
504 	{0x04, 0x21, 0x0c},
505 	{0x04, 0x1d, 0x00},		/* imagetype (1d) */
506 	{0x04, 0x41, 0x01},		/* hardware snapcontrol */
507 
508 	{0x04, 0x00, 0x04},
509 	{0x04, 0x00, 0x05},
510 	{0x04, 0x10, 0x06},
511 	{0x04, 0x10, 0x07},
512 	{0x04, 0x40, 0x06},
513 	{0x04, 0x40, 0x07},
514 	{0x04, 0x00, 0x04},
515 	{0x04, 0x00, 0x05},
516 
517 	{0x06, 0x1c, 0x17},
518 	{0x06, 0xe2, 0x19},
519 	{0x06, 0x1c, 0x1b},
520 	{0x06, 0xe2, 0x1d},
521 	{0x06, 0x5f, 0x1f},
522 	{0x06, 0x32, 0x20},
523 
524 	{0x05, initial_brightness >> 6, 0x00},
525 	{0x05, (initial_brightness << 2) & 0xff, 0x01},
526 	{0x05, 0x06, 0xc1},
527 	{0x05, 0x58, 0xc2},
528 	{0x05, 0x00, 0xca},
529 	{0x05, 0x00, 0x11},
530 	{}
531 };
532 
533 static int reg_write(struct gspca_dev *gspca_dev,
534 		     u16 req, u16 index, u16 value)
535 {
536 	int ret;
537 	struct usb_device *dev = gspca_dev->dev;
538 
539 	ret = usb_control_msg(dev,
540 			usb_sndctrlpipe(dev, 0),
541 			req,
542 			USB_TYPE_VENDOR | USB_RECIP_DEVICE,
543 			value, index, NULL, 0, 500);
544 	gspca_dbg(gspca_dev, D_USBO, "reg write: 0x%02x,0x%02x:0x%02x, %d\n",
545 		  req, index, value, ret);
546 	if (ret < 0)
547 		pr_err("reg write: error %d\n", ret);
548 	return ret;
549 }
550 
551 /* returns: negative is error, pos or zero is data */
552 static int reg_read(struct gspca_dev *gspca_dev,
553 			u16 req,	/* bRequest */
554 			u16 index)	/* wIndex */
555 {
556 	int ret;
557 
558 	ret = usb_control_msg(gspca_dev->dev,
559 			usb_rcvctrlpipe(gspca_dev->dev, 0),
560 			req,
561 			USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
562 			0,			/* value */
563 			index,
564 			gspca_dev->usb_buf, 2,
565 			500);			/* timeout */
566 	if (ret < 0)
567 		return ret;
568 	return (gspca_dev->usb_buf[1] << 8) + gspca_dev->usb_buf[0];
569 }
570 
571 static int write_vector(struct gspca_dev *gspca_dev,
572 			const u8 data[][3])
573 {
574 	int ret, i = 0;
575 
576 	while (data[i][0] != 0) {
577 		ret = reg_write(gspca_dev, data[i][0], data[i][2],
578 								data[i][1]);
579 		if (ret < 0)
580 			return ret;
581 		i++;
582 	}
583 	return 0;
584 }
585 
586 /* this function is called at probe time */
587 static int sd_config(struct gspca_dev *gspca_dev,
588 			const struct usb_device_id *id)
589 {
590 	struct sd *sd = (struct sd *) gspca_dev;
591 	struct cam *cam;
592 
593 	cam = &gspca_dev->cam;
594 	cam->cam_mode = vga_mode;
595 	sd->subtype = id->driver_info;
596 	if (sd->subtype != IntelPCCameraPro)
597 		cam->nmodes = ARRAY_SIZE(vga_mode);
598 	else			/* no 640x480 for IntelPCCameraPro */
599 		cam->nmodes = ARRAY_SIZE(vga_mode) - 1;
600 
601 	return 0;
602 }
603 
604 /* this function is called at probe and resume time */
605 static int sd_init(struct gspca_dev *gspca_dev)
606 {
607 	struct sd *sd = (struct sd *) gspca_dev;
608 
609 	if (write_vector(gspca_dev,
610 			 sd->subtype == Nxultra
611 				? spca505b_init_data
612 				: spca505_init_data))
613 		return -EIO;
614 	return 0;
615 }
616 
617 static void setbrightness(struct gspca_dev *gspca_dev, s32 brightness)
618 {
619 	reg_write(gspca_dev, 0x05, 0x00, (255 - brightness) >> 6);
620 	reg_write(gspca_dev, 0x05, 0x01, (255 - brightness) << 2);
621 }
622 
623 static int sd_start(struct gspca_dev *gspca_dev)
624 {
625 	struct sd *sd = (struct sd *) gspca_dev;
626 	int ret, mode;
627 	static u8 mode_tb[][3] = {
628 	/*	  r00   r06   r07	*/
629 		{0x00, 0x10, 0x10},	/* 640x480 */
630 		{0x01, 0x1a, 0x1a},	/* 352x288 */
631 		{0x02, 0x1c, 0x1d},	/* 320x240 */
632 		{0x04, 0x34, 0x34},	/* 176x144 */
633 		{0x05, 0x40, 0x40}	/* 160x120 */
634 	};
635 
636 	if (sd->subtype == Nxultra)
637 		write_vector(gspca_dev, spca505b_open_data_ccd);
638 	else
639 		write_vector(gspca_dev, spca505_open_data_ccd);
640 	ret = reg_read(gspca_dev, 0x06, 0x16);
641 
642 	if (ret < 0) {
643 		gspca_err(gspca_dev, "register read failed err: %d\n", ret);
644 		return ret;
645 	}
646 	if (ret != 0x0101) {
647 		pr_err("After vector read returns 0x%04x should be 0x0101\n",
648 		       ret);
649 	}
650 
651 	ret = reg_write(gspca_dev, 0x06, 0x16, 0x0a);
652 	if (ret < 0)
653 		return ret;
654 	reg_write(gspca_dev, 0x05, 0xc2, 0x12);
655 
656 	/* necessary because without it we can see stream
657 	 * only once after loading module */
658 	/* stopping usb registers Tomasz change */
659 	reg_write(gspca_dev, 0x02, 0x00, 0x00);
660 
661 	mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
662 	reg_write(gspca_dev, SPCA50X_REG_COMPRESS, 0x00, mode_tb[mode][0]);
663 	reg_write(gspca_dev, SPCA50X_REG_COMPRESS, 0x06, mode_tb[mode][1]);
664 	reg_write(gspca_dev, SPCA50X_REG_COMPRESS, 0x07, mode_tb[mode][2]);
665 
666 	return reg_write(gspca_dev, SPCA50X_REG_USB,
667 			 SPCA50X_USB_CTRL,
668 			 SPCA50X_CUSB_ENABLE);
669 }
670 
671 static void sd_stopN(struct gspca_dev *gspca_dev)
672 {
673 	/* Disable ISO packet machine */
674 	reg_write(gspca_dev, 0x02, 0x00, 0x00);
675 }
676 
677 /* called on streamoff with alt 0 and on disconnect */
678 static void sd_stop0(struct gspca_dev *gspca_dev)
679 {
680 	if (!gspca_dev->present)
681 		return;
682 
683 	/* This maybe reset or power control */
684 	reg_write(gspca_dev, 0x03, 0x03, 0x20);
685 	reg_write(gspca_dev, 0x03, 0x01, 0x00);
686 	reg_write(gspca_dev, 0x03, 0x00, 0x01);
687 	reg_write(gspca_dev, 0x05, 0x10, 0x01);
688 	reg_write(gspca_dev, 0x05, 0x11, 0x0f);
689 }
690 
691 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
692 			u8 *data,			/* isoc packet */
693 			int len)			/* iso packet length */
694 {
695 	switch (data[0]) {
696 	case 0:				/* start of frame */
697 		gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
698 		data += SPCA50X_OFFSET_DATA;
699 		len -= SPCA50X_OFFSET_DATA;
700 		gspca_frame_add(gspca_dev, FIRST_PACKET, data, len);
701 		break;
702 	case 0xff:			/* drop */
703 		break;
704 	default:
705 		data += 1;
706 		len -= 1;
707 		gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
708 		break;
709 	}
710 }
711 
712 static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
713 {
714 	struct gspca_dev *gspca_dev =
715 		container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
716 
717 	gspca_dev->usb_err = 0;
718 
719 	if (!gspca_dev->streaming)
720 		return 0;
721 
722 	switch (ctrl->id) {
723 	case V4L2_CID_BRIGHTNESS:
724 		setbrightness(gspca_dev, ctrl->val);
725 		break;
726 	}
727 	return gspca_dev->usb_err;
728 }
729 
730 static const struct v4l2_ctrl_ops sd_ctrl_ops = {
731 	.s_ctrl = sd_s_ctrl,
732 };
733 
734 static int sd_init_controls(struct gspca_dev *gspca_dev)
735 {
736 	struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
737 
738 	gspca_dev->vdev.ctrl_handler = hdl;
739 	v4l2_ctrl_handler_init(hdl, 5);
740 	v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
741 			V4L2_CID_BRIGHTNESS, 0, 255, 1, 127);
742 
743 	if (hdl->error) {
744 		pr_err("Could not initialize controls\n");
745 		return hdl->error;
746 	}
747 	return 0;
748 }
749 
750 /* sub-driver description */
751 static const struct sd_desc sd_desc = {
752 	.name = MODULE_NAME,
753 	.config = sd_config,
754 	.init_controls = sd_init_controls,
755 	.init = sd_init,
756 	.start = sd_start,
757 	.stopN = sd_stopN,
758 	.stop0 = sd_stop0,
759 	.pkt_scan = sd_pkt_scan,
760 };
761 
762 /* -- module initialisation -- */
763 static const struct usb_device_id device_table[] = {
764 	{USB_DEVICE(0x041e, 0x401d), .driver_info = Nxultra},
765 	{USB_DEVICE(0x0733, 0x0430), .driver_info = IntelPCCameraPro},
766 /*fixme: may be UsbGrabberPV321 BRIDGE_SPCA506 SENSOR_SAA7113 */
767 	{}
768 };
769 MODULE_DEVICE_TABLE(usb, device_table);
770 
771 /* -- device connect -- */
772 static int sd_probe(struct usb_interface *intf,
773 			const struct usb_device_id *id)
774 {
775 	return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
776 				THIS_MODULE);
777 }
778 
779 static struct usb_driver sd_driver = {
780 	.name = MODULE_NAME,
781 	.id_table = device_table,
782 	.probe = sd_probe,
783 	.disconnect = gspca_disconnect,
784 #ifdef CONFIG_PM
785 	.suspend = gspca_suspend,
786 	.resume = gspca_resume,
787 	.reset_resume = gspca_resume,
788 #endif
789 };
790 
791 module_usb_driver(sd_driver);
792