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V4L/DVB (9985): gspca - spca561: Cleanup source.
[deliverable/linux.git] / drivers / media / video / gspca / spca561.c
1 /*
2 * Sunplus spca561 subdriver
3 *
4 * Copyright (C) 2004 Michel Xhaard mxhaard@magic.fr
5 *
6 * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
23 #define MODULE_NAME "spca561"
24
25 #include "gspca.h"
26
27 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
28 MODULE_DESCRIPTION("GSPCA/SPCA561 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 __u16 contrast; /* rev72a only */
36 #define CONTRAST_MIN 0x0000
37 #define CONTRAST_DEF 0x2000
38 #define CONTRAST_MAX 0x3fff
39
40 __u16 exposure; /* rev12a only */
41 #define EXPOSURE_MIN 1
42 #define EXPOSURE_DEF 200
43 #define EXPOSURE_MAX (4095 - 900) /* see set_exposure */
44
45 __u8 brightness; /* rev72a only */
46 #define BRIGHTNESS_MIN 0
47 #define BRIGHTNESS_DEF 32
48 #define BRIGHTNESS_MAX 63
49
50 __u8 white; /* rev12a only */
51 #define WHITE_MIN 1
52 #define WHITE_DEF 0x40
53 #define WHITE_MAX 0x7f
54
55 __u8 autogain;
56 #define AUTOGAIN_MIN 0
57 #define AUTOGAIN_DEF 1
58 #define AUTOGAIN_MAX 1
59
60 __u8 gain; /* rev12a only */
61 #define GAIN_MIN 0x0
62 #define GAIN_DEF 0x24
63 #define GAIN_MAX 0x24
64
65 #define EXPO12A_DEF 3
66 __u8 expo12a; /* expo/gain? for rev 12a */
67
68 __u8 chip_revision;
69 #define Rev012A 0
70 #define Rev072A 1
71
72 signed char ag_cnt;
73 #define AG_CNT_START 13
74 };
75
76 static struct v4l2_pix_format sif_012a_mode[] = {
77 {160, 120, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
78 .bytesperline = 160,
79 .sizeimage = 160 * 120,
80 .colorspace = V4L2_COLORSPACE_SRGB,
81 .priv = 3},
82 {176, 144, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
83 .bytesperline = 176,
84 .sizeimage = 176 * 144,
85 .colorspace = V4L2_COLORSPACE_SRGB,
86 .priv = 2},
87 {320, 240, V4L2_PIX_FMT_SPCA561, V4L2_FIELD_NONE,
88 .bytesperline = 320,
89 .sizeimage = 320 * 240 * 4 / 8,
90 .colorspace = V4L2_COLORSPACE_SRGB,
91 .priv = 1},
92 {352, 288, V4L2_PIX_FMT_SPCA561, V4L2_FIELD_NONE,
93 .bytesperline = 352,
94 .sizeimage = 352 * 288 * 4 / 8,
95 .colorspace = V4L2_COLORSPACE_SRGB,
96 .priv = 0},
97 };
98
99 static struct v4l2_pix_format sif_072a_mode[] = {
100 {160, 120, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
101 .bytesperline = 160,
102 .sizeimage = 160 * 120,
103 .colorspace = V4L2_COLORSPACE_SRGB,
104 .priv = 3},
105 {176, 144, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
106 .bytesperline = 176,
107 .sizeimage = 176 * 144,
108 .colorspace = V4L2_COLORSPACE_SRGB,
109 .priv = 2},
110 {320, 240, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
111 .bytesperline = 320,
112 .sizeimage = 320 * 240,
113 .colorspace = V4L2_COLORSPACE_SRGB,
114 .priv = 1},
115 {352, 288, V4L2_PIX_FMT_SGBRG8, V4L2_FIELD_NONE,
116 .bytesperline = 352,
117 .sizeimage = 352 * 288,
118 .colorspace = V4L2_COLORSPACE_SRGB,
119 .priv = 0},
120 };
121
122 /*
123 * Initialization data
124 * I'm not very sure how to split initialization from open data
125 * chunks. For now, we'll consider everything as initialization
126 */
127 /* Frame packet header offsets for the spca561 */
128 #define SPCA561_OFFSET_SNAP 1
129 #define SPCA561_OFFSET_TYPE 2
130 #define SPCA561_OFFSET_COMPRESS 3
131 #define SPCA561_OFFSET_FRAMSEQ 4
132 #define SPCA561_OFFSET_GPIO 5
133 #define SPCA561_OFFSET_USBBUFF 6
134 #define SPCA561_OFFSET_WIN2GRAVE 7
135 #define SPCA561_OFFSET_WIN2RAVE 8
136 #define SPCA561_OFFSET_WIN2BAVE 9
137 #define SPCA561_OFFSET_WIN2GBAVE 10
138 #define SPCA561_OFFSET_WIN1GRAVE 11
139 #define SPCA561_OFFSET_WIN1RAVE 12
140 #define SPCA561_OFFSET_WIN1BAVE 13
141 #define SPCA561_OFFSET_WIN1GBAVE 14
142 #define SPCA561_OFFSET_FREQ 15
143 #define SPCA561_OFFSET_VSYNC 16
144 #define SPCA561_OFFSET_DATA 1
145 #define SPCA561_INDEX_I2C_BASE 0x8800
146 #define SPCA561_SNAPBIT 0x20
147 #define SPCA561_SNAPCTRL 0x40
148
149 static const __u16 rev72a_init_data[][2] = {
150 {0x0000, 0x8114}, /* Software GPIO output data */
151 {0x0001, 0x8114}, /* Software GPIO output data */
152 {0x0000, 0x8112}, /* Some kind of reset */
153 {0x0003, 0x8701}, /* PCLK clock delay adjustment */
154 {0x0001, 0x8703}, /* HSYNC from cmos inverted */
155 {0x0011, 0x8118}, /* Enable and conf sensor */
156 {0x0001, 0x8118}, /* Conf sensor */
157 {0x0092, 0x8804}, /* I know nothing about these */
158 {0x0010, 0x8802}, /* 0x88xx registers, so I won't */
159 /***************/
160 {0x000d, 0x8805}, /* sensor default setting */
161 {0x0001, 0x8801}, /* 1 <- 0x0d */
162 {0x0000, 0x8800},
163 {0x0018, 0x8805},
164 {0x0002, 0x8801}, /* 2 <- 0x18 */
165 {0x0000, 0x8800},
166 {0x0065, 0x8805},
167 {0x0004, 0x8801}, /* 4 <- 0x01 0x65 */
168 {0x0001, 0x8800},
169 {0x0021, 0x8805},
170 {0x0005, 0x8801}, /* 5 <- 0x21 */
171 {0x0000, 0x8800},
172 {0x00aa, 0x8805},
173 {0x0007, 0x8801}, /* 7 <- 0xaa */
174 {0x0000, 0x8800},
175 {0x0004, 0x8805},
176 {0x0020, 0x8801}, /* 0x20 <- 0x15 0x04 */
177 {0x0015, 0x8800},
178 {0x0002, 0x8805},
179 {0x0039, 0x8801}, /* 0x39 <- 0x02 */
180 {0x0000, 0x8800},
181 {0x0010, 0x8805},
182 {0x0035, 0x8801}, /* 0x35 <- 0x10 */
183 {0x0000, 0x8800},
184 {0x0049, 0x8805},
185 {0x0009, 0x8801}, /* 0x09 <- 0x10 0x49 */
186 {0x0010, 0x8800},
187 {0x000b, 0x8805},
188 {0x0028, 0x8801}, /* 0x28 <- 0x0b */
189 {0x0000, 0x8800},
190 {0x000f, 0x8805},
191 {0x003b, 0x8801}, /* 0x3b <- 0x0f */
192 {0x0000, 0x8800},
193 {0x0000, 0x8805},
194 {0x003c, 0x8801}, /* 0x3c <- 0x00 */
195 {0x0000, 0x8800},
196 /***************/
197 {0x0018, 0x8601}, /* Pixel/line selection for color separation */
198 {0x0000, 0x8602}, /* Optical black level for user setting */
199 {0x0060, 0x8604}, /* Optical black horizontal offset */
200 {0x0002, 0x8605}, /* Optical black vertical offset */
201 {0x0000, 0x8603}, /* Non-automatic optical black level */
202 {0x0002, 0x865b}, /* Horizontal offset for valid pixels */
203 {0x0000, 0x865f}, /* Vertical valid pixels window (x2) */
204 {0x00b0, 0x865d}, /* Horizontal valid pixels window (x2) */
205 {0x0090, 0x865e}, /* Vertical valid lines window (x2) */
206 {0x00e0, 0x8406}, /* Memory buffer threshold */
207 {0x0000, 0x8660}, /* Compensation memory stuff */
208 {0x0002, 0x8201}, /* Output address for r/w serial EEPROM */
209 {0x0008, 0x8200}, /* Clear valid bit for serial EEPROM */
210 {0x0001, 0x8200}, /* OprMode to be executed by hardware */
211 {0x0007, 0x8201}, /* Output address for r/w serial EEPROM */
212 {0x0008, 0x8200}, /* Clear valid bit for serial EEPROM */
213 {0x0001, 0x8200}, /* OprMode to be executed by hardware */
214 {0x0010, 0x8660}, /* Compensation memory stuff */
215 {0x0018, 0x8660}, /* Compensation memory stuff */
216
217 {0x0004, 0x8611}, /* R offset for white balance */
218 {0x0004, 0x8612}, /* Gr offset for white balance */
219 {0x0007, 0x8613}, /* B offset for white balance */
220 {0x0000, 0x8614}, /* Gb offset for white balance */
221 {0x008c, 0x8651}, /* R gain for white balance */
222 {0x008c, 0x8652}, /* Gr gain for white balance */
223 {0x00b5, 0x8653}, /* B gain for white balance */
224 {0x008c, 0x8654}, /* Gb gain for white balance */
225 {0x0002, 0x8502}, /* Maximum average bit rate stuff */
226
227 {0x0011, 0x8802},
228 {0x0087, 0x8700}, /* Set master clock (96Mhz????) */
229 {0x0081, 0x8702}, /* Master clock output enable */
230
231 {0x0000, 0x8500}, /* Set image type (352x288 no compression) */
232 /* Originally was 0x0010 (352x288 compression) */
233
234 {0x0002, 0x865b}, /* Horizontal offset for valid pixels */
235 {0x0003, 0x865c}, /* Vertical offset for valid lines */
236 /***************/ /* sensor active */
237 {0x0003, 0x8801}, /* 0x03 <- 0x01 0x21 //289 */
238 {0x0021, 0x8805},
239 {0x0001, 0x8800},
240 {0x0004, 0x8801}, /* 0x04 <- 0x01 0x65 //357 */
241 {0x0065, 0x8805},
242 {0x0001, 0x8800},
243 {0x0005, 0x8801}, /* 0x05 <- 0x2f */
244 {0x002f, 0x8805},
245 {0x0000, 0x8800},
246 {0x0006, 0x8801}, /* 0x06 <- 0 */
247 {0x0000, 0x8805},
248 {0x0000, 0x8800},
249 {0x000a, 0x8801}, /* 0x0a <- 2 */
250 {0x0002, 0x8805},
251 {0x0000, 0x8800},
252 {0x0009, 0x8801}, /* 0x09 <- 0x1061 */
253 {0x0061, 0x8805},
254 {0x0010, 0x8800},
255 {0x0035, 0x8801}, /* 0x35 <-0x14 */
256 {0x0014, 0x8805},
257 {0x0000, 0x8800},
258 {0x0030, 0x8112}, /* ISO and drop packet enable */
259 {0x0000, 0x8112}, /* Some kind of reset ???? */
260 {0x0009, 0x8118}, /* Enable sensor and set standby */
261 {0x0000, 0x8114}, /* Software GPIO output data */
262 {0x0000, 0x8114}, /* Software GPIO output data */
263 {0x0001, 0x8114}, /* Software GPIO output data */
264 {0x0000, 0x8112}, /* Some kind of reset ??? */
265 {0x0003, 0x8701},
266 {0x0001, 0x8703},
267 {0x0011, 0x8118},
268 {0x0001, 0x8118},
269 /***************/
270 {0x0092, 0x8804},
271 {0x0010, 0x8802},
272 {0x000d, 0x8805},
273 {0x0001, 0x8801},
274 {0x0000, 0x8800},
275 {0x0018, 0x8805},
276 {0x0002, 0x8801},
277 {0x0000, 0x8800},
278 {0x0065, 0x8805},
279 {0x0004, 0x8801},
280 {0x0001, 0x8800},
281 {0x0021, 0x8805},
282 {0x0005, 0x8801},
283 {0x0000, 0x8800},
284 {0x00aa, 0x8805},
285 {0x0007, 0x8801}, /* mode 0xaa */
286 {0x0000, 0x8800},
287 {0x0004, 0x8805},
288 {0x0020, 0x8801},
289 {0x0015, 0x8800}, /* mode 0x0415 */
290 {0x0002, 0x8805},
291 {0x0039, 0x8801},
292 {0x0000, 0x8800},
293 {0x0010, 0x8805},
294 {0x0035, 0x8801},
295 {0x0000, 0x8800},
296 {0x0049, 0x8805},
297 {0x0009, 0x8801},
298 {0x0010, 0x8800},
299 {0x000b, 0x8805},
300 {0x0028, 0x8801},
301 {0x0000, 0x8800},
302 {0x000f, 0x8805},
303 {0x003b, 0x8801},
304 {0x0000, 0x8800},
305 {0x0000, 0x8805},
306 {0x003c, 0x8801},
307 {0x0000, 0x8800},
308 {0x0002, 0x8502},
309 {0x0039, 0x8801},
310 {0x0000, 0x8805},
311 {0x0000, 0x8800},
312
313 {0x0087, 0x8700}, /* overwrite by start */
314 {0x0081, 0x8702},
315 {0x0000, 0x8500},
316 /* {0x0010, 0x8500}, -- Previous line was this */
317 {0x0002, 0x865b},
318 {0x0003, 0x865c},
319 /***************/
320 {0x0003, 0x8801}, /* 0x121-> 289 */
321 {0x0021, 0x8805},
322 {0x0001, 0x8800},
323 {0x0004, 0x8801}, /* 0x165 -> 357 */
324 {0x0065, 0x8805},
325 {0x0001, 0x8800},
326 {0x0005, 0x8801}, /* 0x2f //blanking control colonne */
327 {0x002f, 0x8805},
328 {0x0000, 0x8800},
329 {0x0006, 0x8801}, /* 0x00 //blanking mode row */
330 {0x0000, 0x8805},
331 {0x0000, 0x8800},
332 {0x000a, 0x8801}, /* 0x01 //0x02 */
333 {0x0001, 0x8805},
334 {0x0000, 0x8800},
335 {0x0009, 0x8801}, /* 0x1061 - setexposure times && pixel clock
336 * 0001 0 | 000 0110 0001 */
337 {0x0061, 0x8805}, /* 61 31 */
338 {0x0008, 0x8800}, /* 08 */
339 {0x0035, 0x8801}, /* 0x14 - set gain general */
340 {0x001f, 0x8805}, /* 0x14 */
341 {0x0000, 0x8800},
342 {0x000e, 0x8112}, /* white balance - was 30 */
343 {}
344 };
345
346 /******************** QC Express etch2 stuff ********************/
347 static const __u16 Pb100_1map8300[][2] = {
348 /* reg, value */
349 {0x8320, 0x3304},
350
351 {0x8303, 0x0125}, /* image area */
352 {0x8304, 0x0169},
353 {0x8328, 0x000b},
354 {0x833c, 0x0001}, /*fixme: win:07*/
355
356 {0x832f, 0x1904}, /*fixme: was 0419*/
357 {0x8307, 0x00aa},
358 {0x8301, 0x0003},
359 {0x8302, 0x000e},
360 {}
361 };
362 static const __u16 Pb100_2map8300[][2] = {
363 /* reg, value */
364 {0x8339, 0x0000},
365 {0x8307, 0x00aa},
366 {}
367 };
368
369 static const __u16 spca561_161rev12A_data1[][2] = {
370 {0x29, 0x8118}, /* white balance - was 21 */
371 {0x08, 0x8114}, /* white balance - was 01 */
372 {0x0e, 0x8112}, /* white balance - was 00 */
373 {0x00, 0x8102}, /* white balance - new */
374 {0x92, 0x8804},
375 {0x04, 0x8802}, /* windows uses 08 */
376 {}
377 };
378 static const __u16 spca561_161rev12A_data2[][2] = {
379 {0x21, 0x8118},
380 {0x10, 0x8500},
381 {0x07, 0x8601},
382 {0x07, 0x8602},
383 {0x04, 0x8501},
384 {0x21, 0x8118},
385
386 {0x07, 0x8201}, /* windows uses 02 */
387 {0x08, 0x8200},
388 {0x01, 0x8200},
389
390 {0x00, 0x8114},
391 {0x01, 0x8114}, /* windows uses 00 */
392
393 {0x90, 0x8604},
394 {0x00, 0x8605},
395 {0xb0, 0x8603},
396
397 /* sensor gains */
398 {0x07, 0x8601}, /* white balance - new */
399 {0x07, 0x8602}, /* white balance - new */
400 {0x00, 0x8610}, /* *red */
401 {0x00, 0x8611}, /* 3f *green */
402 {0x00, 0x8612}, /* green *blue */
403 {0x00, 0x8613}, /* blue *green */
404 {0x43, 0x8614}, /* green *red - white balance - was 0x35 */
405 {0x40, 0x8615}, /* 40 *green - white balance - was 0x35 */
406 {0x71, 0x8616}, /* 7a *blue - white balance - was 0x35 */
407 {0x40, 0x8617}, /* 40 *green - white balance - was 0x35 */
408
409 {0x0c, 0x8620}, /* 0c */
410 {0xc8, 0x8631}, /* c8 */
411 {0xc8, 0x8634}, /* c8 */
412 {0x23, 0x8635}, /* 23 */
413 {0x1f, 0x8636}, /* 1f */
414 {0xdd, 0x8637}, /* dd */
415 {0xe1, 0x8638}, /* e1 */
416 {0x1d, 0x8639}, /* 1d */
417 {0x21, 0x863a}, /* 21 */
418 {0xe3, 0x863b}, /* e3 */
419 {0xdf, 0x863c}, /* df */
420 {0xf0, 0x8505},
421 {0x32, 0x850a},
422 /* {0x99, 0x8700}, * - white balance - new (removed) */
423 {}
424 };
425
426 static void reg_w_val(struct usb_device *dev, __u16 index, __u8 value)
427 {
428 int ret;
429
430 ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
431 0, /* request */
432 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
433 value, index, NULL, 0, 500);
434 PDEBUG(D_USBO, "reg write: 0x%02x:0x%02x", index, value);
435 if (ret < 0)
436 PDEBUG(D_ERR, "reg write: error %d", ret);
437 }
438
439 static void write_vector(struct gspca_dev *gspca_dev,
440 const __u16 data[][2])
441 {
442 struct usb_device *dev = gspca_dev->dev;
443 int i;
444
445 i = 0;
446 while (data[i][1] != 0) {
447 reg_w_val(dev, data[i][1], data[i][0]);
448 i++;
449 }
450 }
451
452 /* read 'len' bytes to gspca_dev->usb_buf */
453 static void reg_r(struct gspca_dev *gspca_dev,
454 __u16 index, __u16 length)
455 {
456 usb_control_msg(gspca_dev->dev,
457 usb_rcvctrlpipe(gspca_dev->dev, 0),
458 0, /* request */
459 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
460 0, /* value */
461 index, gspca_dev->usb_buf, length, 500);
462 }
463
464 /* write 'len' bytes from gspca_dev->usb_buf */
465 static void reg_w_buf(struct gspca_dev *gspca_dev,
466 __u16 index, __u16 len)
467 {
468 usb_control_msg(gspca_dev->dev,
469 usb_sndctrlpipe(gspca_dev->dev, 0),
470 0, /* request */
471 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
472 0, /* value */
473 index, gspca_dev->usb_buf, len, 500);
474 }
475
476 static void i2c_write(struct gspca_dev *gspca_dev, __u16 value, __u16 reg)
477 {
478 int retry = 60;
479
480 reg_w_val(gspca_dev->dev, 0x8801, reg);
481 reg_w_val(gspca_dev->dev, 0x8805, value);
482 reg_w_val(gspca_dev->dev, 0x8800, value >> 8);
483 do {
484 reg_r(gspca_dev, 0x8803, 1);
485 if (!gspca_dev->usb_buf[0])
486 return;
487 } while (--retry);
488 }
489
490 static int i2c_read(struct gspca_dev *gspca_dev, __u16 reg, __u8 mode)
491 {
492 int retry = 60;
493 __u8 value;
494
495 reg_w_val(gspca_dev->dev, 0x8804, 0x92);
496 reg_w_val(gspca_dev->dev, 0x8801, reg);
497 reg_w_val(gspca_dev->dev, 0x8802, mode | 0x01);
498 do {
499 reg_r(gspca_dev, 0x8803, 1);
500 if (!gspca_dev->usb_buf[0]) {
501 reg_r(gspca_dev, 0x8800, 1);
502 value = gspca_dev->usb_buf[0];
503 reg_r(gspca_dev, 0x8805, 1);
504 return ((int) value << 8) | gspca_dev->usb_buf[0];
505 }
506 } while (--retry);
507 return -1;
508 }
509
510 static void sensor_mapwrite(struct gspca_dev *gspca_dev,
511 const __u16 (*sensormap)[2])
512 {
513 while ((*sensormap)[0]) {
514 gspca_dev->usb_buf[0] = (*sensormap)[1];
515 gspca_dev->usb_buf[1] = (*sensormap)[1] >> 8;
516 reg_w_buf(gspca_dev, (*sensormap)[0], 2);
517 sensormap++;
518 }
519 }
520
521 static void init_161rev12A(struct gspca_dev *gspca_dev)
522 {
523 write_vector(gspca_dev, spca561_161rev12A_data1);
524 sensor_mapwrite(gspca_dev, Pb100_1map8300);
525 /*fixme: should be in sd_start*/
526 write_vector(gspca_dev, spca561_161rev12A_data2);
527 sensor_mapwrite(gspca_dev, Pb100_2map8300);
528 }
529
530 /* this function is called at probe time */
531 static int sd_config(struct gspca_dev *gspca_dev,
532 const struct usb_device_id *id)
533 {
534 struct sd *sd = (struct sd *) gspca_dev;
535 struct cam *cam;
536 __u16 vendor, product;
537 __u8 data1, data2;
538
539 /* Read frm global register the USB product and vendor IDs, just to
540 * prove that we can communicate with the device. This works, which
541 * confirms at we are communicating properly and that the device
542 * is a 561. */
543 reg_r(gspca_dev, 0x8104, 1);
544 data1 = gspca_dev->usb_buf[0];
545 reg_r(gspca_dev, 0x8105, 1);
546 data2 = gspca_dev->usb_buf[0];
547 vendor = (data2 << 8) | data1;
548 reg_r(gspca_dev, 0x8106, 1);
549 data1 = gspca_dev->usb_buf[0];
550 reg_r(gspca_dev, 0x8107, 1);
551 data2 = gspca_dev->usb_buf[0];
552 product = (data2 << 8) | data1;
553 if (vendor != id->idVendor || product != id->idProduct) {
554 PDEBUG(D_PROBE, "Bad vendor / product from device");
555 return -EINVAL;
556 }
557
558 cam = &gspca_dev->cam;
559 cam->epaddr = 0x01;
560 gspca_dev->nbalt = 7 + 1; /* choose alternate 7 first */
561
562 sd->chip_revision = id->driver_info;
563 if (sd->chip_revision == Rev012A) {
564 cam->cam_mode = sif_012a_mode;
565 cam->nmodes = ARRAY_SIZE(sif_012a_mode);
566 } else {
567 cam->cam_mode = sif_072a_mode;
568 cam->nmodes = ARRAY_SIZE(sif_072a_mode);
569 }
570 sd->brightness = BRIGHTNESS_DEF;
571 sd->contrast = CONTRAST_DEF;
572 sd->white = WHITE_DEF;
573 sd->exposure = EXPOSURE_DEF;
574 sd->autogain = AUTOGAIN_DEF;
575 sd->gain = GAIN_DEF;
576 sd->expo12a = EXPO12A_DEF;
577 return 0;
578 }
579
580 /* this function is called at probe and resume time */
581 static int sd_init_12a(struct gspca_dev *gspca_dev)
582 {
583 PDEBUG(D_STREAM, "Chip revision: 012a");
584 init_161rev12A(gspca_dev);
585 return 0;
586 }
587 static int sd_init_72a(struct gspca_dev *gspca_dev)
588 {
589 PDEBUG(D_STREAM, "Chip revision: 072a");
590 write_vector(gspca_dev, rev72a_init_data);
591 return 0;
592 }
593
594 static void setcontrast(struct gspca_dev *gspca_dev)
595 {
596 struct sd *sd = (struct sd *) gspca_dev;
597 struct usb_device *dev = gspca_dev->dev;
598 __u8 lowb;
599
600 switch (sd->chip_revision) {
601 case Rev072A:
602 lowb = sd->contrast >> 8;
603 reg_w_val(dev, 0x8651, lowb);
604 reg_w_val(dev, 0x8652, lowb);
605 reg_w_val(dev, 0x8653, lowb);
606 reg_w_val(dev, 0x8654, lowb);
607 break;
608 default: {
609 /* case Rev012A: { */
610 static const __u8 Reg8391[] =
611 { 0x92, 0x30, 0x20, 0x00, 0x0c, 0x00, 0x00, 0x00 };
612
613 memcpy(gspca_dev->usb_buf, Reg8391, 8);
614 reg_w_buf(gspca_dev, 0x8391, 8);
615 reg_w_buf(gspca_dev, 0x8390, 8);
616 break;
617 }
618 }
619 }
620
621 /* rev12a only */
622 static void setwhite(struct gspca_dev *gspca_dev)
623 {
624 struct sd *sd = (struct sd *) gspca_dev;
625 __u16 white;
626 __u8 reg8614, reg8616;
627
628 white = sd->white;
629 /* try to emulate MS-win as possible */
630 reg8616 = 0x90 - white * 5 / 8;
631 reg_w_val(gspca_dev->dev, 0x8616, reg8616);
632 reg8614 = 0x20 + white * 3 / 8;
633 reg_w_val(gspca_dev->dev, 0x8614, reg8614);
634 }
635
636 /* rev 12a only */
637 static void setexposure(struct gspca_dev *gspca_dev)
638 {
639 struct sd *sd = (struct sd *) gspca_dev;
640 int expo;
641 int clock_divider;
642
643 /* Register 0x8309 controls exposure for the spca561,
644 the basic exposure setting goes from 1-2047, where 1 is completely
645 dark and 2047 is very bright. It not only influences exposure but
646 also the framerate (to allow for longer exposure) from 1 - 300 it
647 only raises the exposure time then from 300 - 600 it halves the
648 framerate to be able to further raise the exposure time and for every
649 300 more it halves the framerate again. This allows for a maximum
650 exposure time of circa 0.2 - 0.25 seconds (30 / (2000/3000) fps).
651 Sometimes this is not enough, the 1-2047 uses bits 0-10, bits 11-12
652 configure a divider for the base framerate which us used at the
653 exposure setting of 1-300. These bits configure the base framerate
654 according to the following formula: fps = 60 / (value + 2) */
655 if (sd->exposure < 2048) {
656 expo = sd->exposure;
657 clock_divider = 0;
658 } else {
659 /* Add 900 to make the 0 setting of the second part of the
660 exposure equal to the 2047 setting of the first part. */
661 expo = (sd->exposure - 2048) + 900;
662 clock_divider = 3;
663 }
664 expo |= clock_divider << 11;
665 gspca_dev->usb_buf[0] = expo;
666 gspca_dev->usb_buf[1] = expo >> 8;
667 reg_w_buf(gspca_dev, 0x8309, 2);
668 }
669
670 /* rev 12a only */
671 static void setgain(struct gspca_dev *gspca_dev)
672 {
673 struct sd *sd = (struct sd *) gspca_dev;
674
675 gspca_dev->usb_buf[0] = sd->gain;
676 gspca_dev->usb_buf[1] = 0;
677 reg_w_buf(gspca_dev, 0x8335, 2);
678 }
679
680 static void setautogain(struct gspca_dev *gspca_dev)
681 {
682 struct sd *sd = (struct sd *) gspca_dev;
683
684 if (sd->autogain)
685 sd->ag_cnt = AG_CNT_START;
686 else
687 sd->ag_cnt = -1;
688 }
689
690 static int sd_start_12a(struct gspca_dev *gspca_dev)
691 {
692 struct usb_device *dev = gspca_dev->dev;
693 int Clck = 0x8a; /* lower 0x8X values lead to fps > 30 */
694 __u8 Reg8307[] = { 0xaa, 0x00 };
695 int mode;
696
697 mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
698 if (mode <= 1) {
699 /* Use compression on 320x240 and above */
700 reg_w_val(dev, 0x8500, 0x10 | mode);
701 } else {
702 /* I couldn't get the compression to work below 320x240
703 * Fortunately at these resolutions the bandwidth
704 * is sufficient to push raw frames at ~20fps */
705 reg_w_val(dev, 0x8500, mode);
706 } /* -- qq@kuku.eu.org */
707
708 memcpy(gspca_dev->usb_buf, Reg8307, sizeof Reg8307);
709 reg_w_buf(gspca_dev, 0x8307, sizeof Reg8307);
710 reg_w_val(gspca_dev->dev, 0x8700, Clck);
711 /* 0x8f 0x85 0x27 clock */
712 reg_w_val(gspca_dev->dev, 0x8112, 0x1e | 0x20);
713 reg_w_val(gspca_dev->dev, 0x850b, 0x03);
714 setcontrast(gspca_dev);
715 setwhite(gspca_dev);
716 setautogain(gspca_dev);
717 setexposure(gspca_dev);
718 return 0;
719 }
720 static int sd_start_72a(struct gspca_dev *gspca_dev)
721 {
722 struct usb_device *dev = gspca_dev->dev;
723 int Clck;
724 int mode;
725
726 mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
727 switch (mode) {
728 default:
729 /* case 0:
730 case 1: */
731 Clck = 0x25;
732 break;
733 case 2:
734 Clck = 0x22;
735 break;
736 case 3:
737 Clck = 0x21;
738 break;
739 }
740 reg_w_val(dev, 0x8500, mode); /* mode */
741 reg_w_val(dev, 0x8700, Clck); /* 0x27 clock */
742 reg_w_val(dev, 0x8112, 0x10 | 0x20);
743 setautogain(gspca_dev);
744 return 0;
745 }
746
747 static void sd_stopN(struct gspca_dev *gspca_dev)
748 {
749 struct sd *sd = (struct sd *) gspca_dev;
750
751 if (sd->chip_revision == Rev012A) {
752 reg_w_val(gspca_dev->dev, 0x8112, 0x0e);
753 } else {
754 reg_w_val(gspca_dev->dev, 0x8112, 0x20);
755 /* reg_w_val(gspca_dev->dev, 0x8102, 0x00); ?? */
756 }
757 }
758
759 /* called on streamoff with alt 0 and on disconnect */
760 static void sd_stop0(struct gspca_dev *gspca_dev)
761 {
762 struct sd *sd = (struct sd *) gspca_dev;
763
764 if (!gspca_dev->present)
765 return;
766 if (sd->chip_revision == Rev012A) {
767 reg_w_val(gspca_dev->dev, 0x8118, 0x29);
768 reg_w_val(gspca_dev->dev, 0x8114, 0x08);
769 }
770 /* reg_w_val(gspca_dev->dev, 0x8114, 0); */
771 }
772
773 static void do_autogain(struct gspca_dev *gspca_dev)
774 {
775 struct sd *sd = (struct sd *) gspca_dev;
776 int expotimes;
777 int pixelclk;
778 int gainG;
779 __u8 R, Gr, Gb, B;
780 int y;
781 __u8 luma_mean = 110;
782 __u8 luma_delta = 20;
783 __u8 spring = 4;
784
785 if (sd->ag_cnt < 0)
786 return;
787 if (--sd->ag_cnt >= 0)
788 return;
789 sd->ag_cnt = AG_CNT_START;
790
791 switch (sd->chip_revision) {
792 case Rev072A:
793 reg_r(gspca_dev, 0x8621, 1);
794 Gr = gspca_dev->usb_buf[0];
795 reg_r(gspca_dev, 0x8622, 1);
796 R = gspca_dev->usb_buf[0];
797 reg_r(gspca_dev, 0x8623, 1);
798 B = gspca_dev->usb_buf[0];
799 reg_r(gspca_dev, 0x8624, 1);
800 Gb = gspca_dev->usb_buf[0];
801 y = (77 * R + 75 * (Gr + Gb) + 29 * B) >> 8;
802 /* u= (128*B-(43*(Gr+Gb+R))) >> 8; */
803 /* v= (128*R-(53*(Gr+Gb))-21*B) >> 8; */
804 /* PDEBUG(D_CONF,"reading Y %d U %d V %d ",y,u,v); */
805
806 if (y < luma_mean - luma_delta ||
807 y > luma_mean + luma_delta) {
808 expotimes = i2c_read(gspca_dev, 0x09, 0x10);
809 pixelclk = 0x0800;
810 expotimes = expotimes & 0x07ff;
811 /* PDEBUG(D_PACK,
812 "Exposition Times 0x%03X Clock 0x%04X ",
813 expotimes,pixelclk); */
814 gainG = i2c_read(gspca_dev, 0x35, 0x10);
815 /* PDEBUG(D_PACK,
816 "reading Gain register %d", gainG); */
817
818 expotimes += (luma_mean - y) >> spring;
819 gainG += (luma_mean - y) / 50;
820 /* PDEBUG(D_PACK,
821 "compute expotimes %d gain %d",
822 expotimes,gainG); */
823
824 if (gainG > 0x3f)
825 gainG = 0x3f;
826 else if (gainG < 3)
827 gainG = 3;
828 i2c_write(gspca_dev, gainG, 0x35);
829
830 if (expotimes > 0x0256)
831 expotimes = 0x0256;
832 else if (expotimes < 3)
833 expotimes = 3;
834 i2c_write(gspca_dev, expotimes | pixelclk, 0x09);
835 }
836 break;
837 case Rev012A:
838 reg_r(gspca_dev, 0x8330, 2);
839 if (gspca_dev->usb_buf[1] > 0x08) {
840 gspca_dev->usb_buf[0] = ++sd->expo12a;
841 gspca_dev->usb_buf[1] = 0;
842 reg_w_buf(gspca_dev, 0x8339, 2);
843 } else if (gspca_dev->usb_buf[1] < 0x02) {
844 gspca_dev->usb_buf[0] = --sd->expo12a;
845 gspca_dev->usb_buf[1] = 0;
846 reg_w_buf(gspca_dev, 0x8339, 2);
847 }
848 break;
849 }
850 }
851
852 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
853 struct gspca_frame *frame, /* target */
854 __u8 *data, /* isoc packet */
855 int len) /* iso packet length */
856 {
857 struct sd *sd = (struct sd *) gspca_dev;
858
859 switch (data[0]) { /* sequence number */
860 case 0: /* start of frame */
861 frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
862 data, 0);
863 data += SPCA561_OFFSET_DATA;
864 len -= SPCA561_OFFSET_DATA;
865 if (data[1] & 0x10) {
866 /* compressed bayer */
867 gspca_frame_add(gspca_dev, FIRST_PACKET,
868 frame, data, len);
869 } else {
870 /* raw bayer (with a header, which we skip) */
871 if (sd->chip_revision == Rev012A) {
872 data += 20;
873 len -= 20;
874 } else {
875 data += 16;
876 len -= 16;
877 }
878 gspca_frame_add(gspca_dev, FIRST_PACKET,
879 frame, data, len);
880 }
881 return;
882 case 0xff: /* drop (empty mpackets) */
883 return;
884 }
885 data++;
886 len--;
887 gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
888 }
889
890 /* rev 72a only */
891 static void setbrightness(struct gspca_dev *gspca_dev)
892 {
893 struct sd *sd = (struct sd *) gspca_dev;
894 __u8 value;
895
896 value = sd->brightness;
897 reg_w_val(gspca_dev->dev, 0x8611, value);
898 reg_w_val(gspca_dev->dev, 0x8612, value);
899 reg_w_val(gspca_dev->dev, 0x8613, value);
900 reg_w_val(gspca_dev->dev, 0x8614, value);
901 }
902
903 static void getbrightness(struct gspca_dev *gspca_dev)
904 {
905 struct sd *sd = (struct sd *) gspca_dev;
906 __u16 tot;
907
908 tot = 0;
909 reg_r(gspca_dev, 0x8611, 1);
910 tot += gspca_dev->usb_buf[0];
911 reg_r(gspca_dev, 0x8612, 1);
912 tot += gspca_dev->usb_buf[0];
913 reg_r(gspca_dev, 0x8613, 1);
914 tot += gspca_dev->usb_buf[0];
915 reg_r(gspca_dev, 0x8614, 1);
916 tot += gspca_dev->usb_buf[0];
917 sd->brightness = tot >> 2;
918 }
919
920 /* rev72a only */
921 static void getcontrast(struct gspca_dev *gspca_dev)
922 {
923 struct sd *sd = (struct sd *) gspca_dev;
924 __u16 tot;
925
926 tot = 0;
927 reg_r(gspca_dev, 0x8651, 1);
928 tot += gspca_dev->usb_buf[0];
929 reg_r(gspca_dev, 0x8652, 1);
930 tot += gspca_dev->usb_buf[0];
931 reg_r(gspca_dev, 0x8653, 1);
932 tot += gspca_dev->usb_buf[0];
933 reg_r(gspca_dev, 0x8654, 1);
934 tot += gspca_dev->usb_buf[0];
935 sd->contrast = tot << 6;
936 PDEBUG(D_CONF, "get contrast %d", sd->contrast);
937 }
938
939 /* rev 72a only */
940 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
941 {
942 struct sd *sd = (struct sd *) gspca_dev;
943
944 sd->brightness = val;
945 if (gspca_dev->streaming)
946 setbrightness(gspca_dev);
947 return 0;
948 }
949
950 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
951 {
952 struct sd *sd = (struct sd *) gspca_dev;
953
954 getbrightness(gspca_dev);
955 *val = sd->brightness;
956 return 0;
957 }
958
959 /* rev 72a only */
960 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
961 {
962 struct sd *sd = (struct sd *) gspca_dev;
963
964 sd->contrast = val;
965 if (gspca_dev->streaming)
966 setcontrast(gspca_dev);
967 return 0;
968 }
969
970 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
971 {
972 struct sd *sd = (struct sd *) gspca_dev;
973
974 getcontrast(gspca_dev);
975 *val = sd->contrast;
976 return 0;
977 }
978
979 static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
980 {
981 struct sd *sd = (struct sd *) gspca_dev;
982
983 sd->autogain = val;
984 if (gspca_dev->streaming)
985 setautogain(gspca_dev);
986 return 0;
987 }
988
989 static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val)
990 {
991 struct sd *sd = (struct sd *) gspca_dev;
992
993 *val = sd->autogain;
994 return 0;
995 }
996
997 /* rev12a only */
998 static int sd_setwhite(struct gspca_dev *gspca_dev, __s32 val)
999 {
1000 struct sd *sd = (struct sd *) gspca_dev;
1001
1002 sd->white = val;
1003 if (gspca_dev->streaming)
1004 setwhite(gspca_dev);
1005 return 0;
1006 }
1007
1008 static int sd_getwhite(struct gspca_dev *gspca_dev, __s32 *val)
1009 {
1010 struct sd *sd = (struct sd *) gspca_dev;
1011
1012 *val = sd->white;
1013 return 0;
1014 }
1015
1016 /* rev12a only */
1017 static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val)
1018 {
1019 struct sd *sd = (struct sd *) gspca_dev;
1020
1021 sd->exposure = val;
1022 if (gspca_dev->streaming)
1023 setexposure(gspca_dev);
1024 return 0;
1025 }
1026
1027 static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val)
1028 {
1029 struct sd *sd = (struct sd *) gspca_dev;
1030
1031 *val = sd->exposure;
1032 return 0;
1033 }
1034
1035 /* rev12a only */
1036 static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val)
1037 {
1038 struct sd *sd = (struct sd *) gspca_dev;
1039
1040 sd->gain = val;
1041 if (gspca_dev->streaming)
1042 setgain(gspca_dev);
1043 return 0;
1044 }
1045
1046 static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val)
1047 {
1048 struct sd *sd = (struct sd *) gspca_dev;
1049
1050 *val = sd->gain;
1051 return 0;
1052 }
1053
1054 /* control tables */
1055 static struct ctrl sd_ctrls_12a[] = {
1056 {
1057 {
1058 .id = V4L2_CID_DO_WHITE_BALANCE,
1059 .type = V4L2_CTRL_TYPE_INTEGER,
1060 .name = "White Balance",
1061 .minimum = WHITE_MIN,
1062 .maximum = WHITE_MAX,
1063 .step = 1,
1064 .default_value = WHITE_DEF,
1065 },
1066 .set = sd_setwhite,
1067 .get = sd_getwhite,
1068 },
1069 {
1070 {
1071 .id = V4L2_CID_EXPOSURE,
1072 .type = V4L2_CTRL_TYPE_INTEGER,
1073 .name = "Exposure",
1074 .minimum = EXPOSURE_MIN,
1075 .maximum = EXPOSURE_MAX,
1076 .step = 1,
1077 .default_value = EXPOSURE_DEF,
1078 },
1079 .set = sd_setexposure,
1080 .get = sd_getexposure,
1081 },
1082 {
1083 {
1084 .id = V4L2_CID_AUTOGAIN,
1085 .type = V4L2_CTRL_TYPE_BOOLEAN,
1086 .name = "Auto Gain",
1087 .minimum = AUTOGAIN_MIN,
1088 .maximum = AUTOGAIN_MAX,
1089 .step = 1,
1090 .default_value = AUTOGAIN_DEF,
1091 },
1092 .set = sd_setautogain,
1093 .get = sd_getautogain,
1094 },
1095 {
1096 {
1097 .id = V4L2_CID_GAIN,
1098 .type = V4L2_CTRL_TYPE_INTEGER,
1099 .name = "Gain",
1100 .minimum = GAIN_MIN,
1101 .maximum = GAIN_MAX,
1102 .step = 1,
1103 .default_value = GAIN_DEF,
1104 },
1105 .set = sd_setgain,
1106 .get = sd_getgain,
1107 },
1108 };
1109
1110 static struct ctrl sd_ctrls_72a[] = {
1111 {
1112 {
1113 .id = V4L2_CID_BRIGHTNESS,
1114 .type = V4L2_CTRL_TYPE_INTEGER,
1115 .name = "Brightness",
1116 .minimum = BRIGHTNESS_MIN,
1117 .maximum = BRIGHTNESS_MAX,
1118 .step = 1,
1119 .default_value = BRIGHTNESS_DEF,
1120 },
1121 .set = sd_setbrightness,
1122 .get = sd_getbrightness,
1123 },
1124 {
1125 {
1126 .id = V4L2_CID_CONTRAST,
1127 .type = V4L2_CTRL_TYPE_INTEGER,
1128 .name = "Contrast",
1129 .minimum = CONTRAST_MIN,
1130 .maximum = CONTRAST_MAX,
1131 .step = 1,
1132 .default_value = CONTRAST_DEF,
1133 },
1134 .set = sd_setcontrast,
1135 .get = sd_getcontrast,
1136 },
1137 {
1138 {
1139 .id = V4L2_CID_AUTOGAIN,
1140 .type = V4L2_CTRL_TYPE_BOOLEAN,
1141 .name = "Auto Gain",
1142 .minimum = AUTOGAIN_MIN,
1143 .maximum = AUTOGAIN_MAX,
1144 .step = 1,
1145 .default_value = AUTOGAIN_DEF,
1146 },
1147 .set = sd_setautogain,
1148 .get = sd_getautogain,
1149 },
1150 };
1151
1152 /* sub-driver description */
1153 static const struct sd_desc sd_desc_12a = {
1154 .name = MODULE_NAME,
1155 .ctrls = sd_ctrls_12a,
1156 .nctrls = ARRAY_SIZE(sd_ctrls_12a),
1157 .config = sd_config,
1158 .init = sd_init_12a,
1159 .start = sd_start_12a,
1160 .stopN = sd_stopN,
1161 .stop0 = sd_stop0,
1162 .pkt_scan = sd_pkt_scan,
1163 /* .dq_callback = do_autogain, * fixme */
1164 };
1165 static const struct sd_desc sd_desc_72a = {
1166 .name = MODULE_NAME,
1167 .ctrls = sd_ctrls_72a,
1168 .nctrls = ARRAY_SIZE(sd_ctrls_72a),
1169 .config = sd_config,
1170 .init = sd_init_72a,
1171 .start = sd_start_72a,
1172 .stopN = sd_stopN,
1173 .stop0 = sd_stop0,
1174 .pkt_scan = sd_pkt_scan,
1175 .dq_callback = do_autogain,
1176 };
1177 static const struct sd_desc *sd_desc[2] = {
1178 &sd_desc_12a,
1179 &sd_desc_72a
1180 };
1181
1182 /* -- module initialisation -- */
1183 static const __devinitdata struct usb_device_id device_table[] = {
1184 {USB_DEVICE(0x041e, 0x401a), .driver_info = Rev072A},
1185 {USB_DEVICE(0x041e, 0x403b), .driver_info = Rev012A},
1186 {USB_DEVICE(0x0458, 0x7004), .driver_info = Rev072A},
1187 {USB_DEVICE(0x046d, 0x0928), .driver_info = Rev012A},
1188 {USB_DEVICE(0x046d, 0x0929), .driver_info = Rev012A},
1189 {USB_DEVICE(0x046d, 0x092a), .driver_info = Rev012A},
1190 {USB_DEVICE(0x046d, 0x092b), .driver_info = Rev012A},
1191 {USB_DEVICE(0x046d, 0x092c), .driver_info = Rev012A},
1192 {USB_DEVICE(0x046d, 0x092d), .driver_info = Rev012A},
1193 {USB_DEVICE(0x046d, 0x092e), .driver_info = Rev012A},
1194 {USB_DEVICE(0x046d, 0x092f), .driver_info = Rev012A},
1195 {USB_DEVICE(0x04fc, 0x0561), .driver_info = Rev072A},
1196 {USB_DEVICE(0x060b, 0xa001), .driver_info = Rev072A},
1197 {USB_DEVICE(0x10fd, 0x7e50), .driver_info = Rev072A},
1198 {USB_DEVICE(0xabcd, 0xcdee), .driver_info = Rev072A},
1199 {}
1200 };
1201
1202 MODULE_DEVICE_TABLE(usb, device_table);
1203
1204 /* -- device connect -- */
1205 static int sd_probe(struct usb_interface *intf,
1206 const struct usb_device_id *id)
1207 {
1208 return gspca_dev_probe(intf, id,
1209 sd_desc[id->driver_info],
1210 sizeof(struct sd),
1211 THIS_MODULE);
1212 }
1213
1214 static struct usb_driver sd_driver = {
1215 .name = MODULE_NAME,
1216 .id_table = device_table,
1217 .probe = sd_probe,
1218 .disconnect = gspca_disconnect,
1219 #ifdef CONFIG_PM
1220 .suspend = gspca_suspend,
1221 .resume = gspca_resume,
1222 #endif
1223 };
1224
1225 /* -- module insert / remove -- */
1226 static int __init sd_mod_init(void)
1227 {
1228 if (usb_register(&sd_driver) < 0)
1229 return -1;
1230 PDEBUG(D_PROBE, "registered");
1231 return 0;
1232 }
1233 static void __exit sd_mod_exit(void)
1234 {
1235 usb_deregister(&sd_driver);
1236 PDEBUG(D_PROBE, "deregistered");
1237 }
1238
1239 module_init(sd_mod_init);
1240 module_exit(sd_mod_exit);
Linux kernel - Deliverables
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