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V4L/DVB (10367): gspca - spca561: Optimize the isoc scanning function.
[linux-2.6/mini2440.git] / drivers / media / video / gspca / spca561.c
blob386aaec3e6e1aa3a08e4df1a529382a8b0d60daf
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 exposure; /* rev12a only */
36 #define EXPOSURE_MIN 1
37 #define EXPOSURE_DEF 200
38 #define EXPOSURE_MAX (4095 - 900) /* see set_exposure */
39
40 __u8 contrast; /* rev72a only */
41 #define CONTRAST_MIN 0x00
42 #define CONTRAST_DEF 0x20
43 #define CONTRAST_MAX 0x3f
44
45 __u8 brightness; /* rev72a only */
46 #define BRIGHTNESS_MIN 0
47 #define BRIGHTNESS_DEF 0x20
48 #define BRIGHTNESS_MAX 0x3f
49
50 __u8 white;
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 const 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 const 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_INDEX_I2C_BASE 0x8800
145 #define SPCA561_SNAPBIT 0x20
146 #define SPCA561_SNAPCTRL 0x40
147
148 static const __u16 rev72a_init_data1[][2] = {
149 {0x0000, 0x8114}, /* Software GPIO output data */
150 {0x0001, 0x8114}, /* Software GPIO output data */
151 {0x0000, 0x8112}, /* Some kind of reset */
152 {0x0003, 0x8701}, /* PCLK clock delay adjustment */
153 {0x0001, 0x8703}, /* HSYNC from cmos inverted */
154 {0x0011, 0x8118}, /* Enable and conf sensor */
155 {0x0001, 0x8118}, /* Conf sensor */
156 {0x0092, 0x8804}, /* I know nothing about these */
157 {0x0010, 0x8802}, /* 0x88xx registers, so I won't */
158 {0x000d, 0x8805}, /* sensor default setting */
159 {}
160 };
161 static const __u16 rev72a_init_sensor1[][2] = {
162 /* ms-win values */
163 {0x0001, 0x0018}, /* 0x01 <- 0x0d */
164 {0x0002, 0x0065}, /* 0x02 <- 0x18 */
165 {0x0004, 0x0121}, /* 0x04 <- 0x0165 */
166 {0x0005, 0x00aa}, /* 0x05 <- 0x21 */
167 {0x0007, 0x0004}, /* 0x07 <- 0xaa */
168 {0x0020, 0x1502}, /* 0x20 <- 0x1504 */
169 {0x0039, 0x0010}, /* 0x39 <- 0x02 */
170 {0x0035, 0x0049}, /* 0x35 <- 0x10 */
171 {0x0009, 0x100b}, /* 0x09 <- 0x1049 */
172 {0x0028, 0x000f}, /* 0x28 <- 0x0b */
173 {0x003b, 0x003c}, /* 0x3b <- 0x0f */
174 {0x003c, 0x0000}, /* 0x3c <- 0x00 */
175 {}
176 };
177 static const __u16 rev72a_init_data2[][2] = {
178 {0x0018, 0x8601}, /* Pixel/line selection for color separation */
179 {0x0000, 0x8602}, /* Optical black level for user setting */
180 {0x0060, 0x8604}, /* Optical black horizontal offset */
181 {0x0002, 0x8605}, /* Optical black vertical offset */
182 {0x0000, 0x8603}, /* Non-automatic optical black level */
183 {0x0002, 0x865b}, /* Horizontal offset for valid pixels */
184 {0x0000, 0x865f}, /* Vertical valid pixels window (x2) */
185 {0x00b0, 0x865d}, /* Horizontal valid pixels window (x2) */
186 {0x0090, 0x865e}, /* Vertical valid lines window (x2) */
187 {0x00e0, 0x8406}, /* Memory buffer threshold */
188 {0x0000, 0x8660}, /* Compensation memory stuff */
189 {0x0002, 0x8201}, /* Output address for r/w serial EEPROM */
190 {0x0008, 0x8200}, /* Clear valid bit for serial EEPROM */
191 {0x0001, 0x8200}, /* OprMode to be executed by hardware */
192 {0x0007, 0x8201}, /* Output address for r/w serial EEPROM */
193 {0x0008, 0x8200}, /* Clear valid bit for serial EEPROM */
194 {0x0001, 0x8200}, /* OprMode to be executed by hardware */
195 {0x0010, 0x8660}, /* Compensation memory stuff */
196 {0x0018, 0x8660}, /* Compensation memory stuff */
197
198 {0x0004, 0x8611}, /* R offset for white balance */
199 {0x0004, 0x8612}, /* Gr offset for white balance */
200 {0x0007, 0x8613}, /* B offset for white balance */
201 {0x0000, 0x8614}, /* Gb offset for white balance */
202 /* from ms-win */
203 {0x0035, 0x8651}, /* R gain for white balance */
204 {0x0040, 0x8652}, /* Gr gain for white balance */
205 {0x005f, 0x8653}, /* B gain for white balance */
206 {0x0040, 0x8654}, /* Gb gain for white balance */
207 {0x0002, 0x8502}, /* Maximum average bit rate stuff */
208
209 {0x0011, 0x8802},
210 {0x0087, 0x8700}, /* Set master clock (96Mhz????) */
211 {0x0081, 0x8702}, /* Master clock output enable */
212
213 {0x0000, 0x8500}, /* Set image type (352x288 no compression) */
214 /* Originally was 0x0010 (352x288 compression) */
215
216 {0x0002, 0x865b}, /* Horizontal offset for valid pixels */
217 {0x0003, 0x865c}, /* Vertical offset for valid lines */
218 {}
219 };
220 static const __u16 rev72a_init_sensor2[][2] = {
221 /* ms-win values */
222 {0x0003, 0x0121}, /* 0x03 <- 0x01 0x21 //289 */
223 {0x0004, 0x0165}, /* 0x04 <- 0x01 0x65 //357 */
224 {0x0005, 0x002f}, /* 0x05 <- 0x2f */
225 {0x0006, 0x0000}, /* 0x06 <- 0 */
226 {0x000a, 0x0002}, /* 0x0a <- 2 */
227 {0x0009, 0x1061}, /* 0x09 <- 0x1061 */
228 {0x0035, 0x0014}, /* 0x35 <- 0x14 */
229 {}
230 };
231 static const __u16 rev72a_init_data3[][2] = {
232 {0x0030, 0x8112}, /* ISO and drop packet enable */
233 /*fixme: should stop here*/
234 {0x0000, 0x8112}, /* Some kind of reset ???? */
235 {0x0009, 0x8118}, /* Enable sensor and set standby */
236 {0x0000, 0x8114}, /* Software GPIO output data */
237 {0x0000, 0x8114}, /* Software GPIO output data */
238 {0x0001, 0x8114}, /* Software GPIO output data */
239 {0x0000, 0x8112}, /* Some kind of reset ??? */
240 {0x0003, 0x8701},
241 {0x0001, 0x8703},
242 {0x0011, 0x8118},
243 {0x0001, 0x8118},
244 /***************/
245 {0x0092, 0x8804},
246 {0x0010, 0x8802},
247 {0x000d, 0x8805},
248 {0x0001, 0x8801},
249 {0x0000, 0x8800},
250 {0x0018, 0x8805},
251 {0x0002, 0x8801},
252 {0x0000, 0x8800},
253 {0x0065, 0x8805},
254 {0x0004, 0x8801},
255 {0x0001, 0x8800},
256 {0x0021, 0x8805},
257 {0x0005, 0x8801},
258 {0x0000, 0x8800},
259 {0x00aa, 0x8805},
260 {0x0007, 0x8801}, /* mode 0xaa */
261 {0x0000, 0x8800},
262 {0x0004, 0x8805},
263 {0x0020, 0x8801},
264 {0x0015, 0x8800}, /* mode 0x0415 */
265 {0x0002, 0x8805},
266 {0x0039, 0x8801},
267 {0x0000, 0x8800},
268 {0x0010, 0x8805},
269 {0x0035, 0x8801},
270 {0x0000, 0x8800},
271 {0x0049, 0x8805},
272 {0x0009, 0x8801},
273 {0x0010, 0x8800},
274 {0x000b, 0x8805},
275 {0x0028, 0x8801},
276 {0x0000, 0x8800},
277 {0x000f, 0x8805},
278 {0x003b, 0x8801},
279 {0x0000, 0x8800},
280 {0x0000, 0x8805},
281 {0x003c, 0x8801},
282 {0x0000, 0x8800},
283 {0x0002, 0x8502},
284 {0x0039, 0x8801},
285 {0x0000, 0x8805},
286 {0x0000, 0x8800},
287
288 {0x0087, 0x8700}, /* overwrite by start */
289 {0x0081, 0x8702},
290 {0x0000, 0x8500},
291 /* {0x0010, 0x8500}, -- Previous line was this */
292 {0x0002, 0x865b},
293 {0x0003, 0x865c},
294 /***************/
295 {0x0003, 0x8801}, /* 0x121-> 289 */
296 {0x0021, 0x8805},
297 {0x0001, 0x8800},
298 {0x0004, 0x8801}, /* 0x165 -> 357 */
299 {0x0065, 0x8805},
300 {0x0001, 0x8800},
301 {0x0005, 0x8801}, /* 0x2f //blanking control colonne */
302 {0x002f, 0x8805},
303 {0x0000, 0x8800},
304 {0x0006, 0x8801}, /* 0x00 //blanking mode row */
305 {0x0000, 0x8805},
306 {0x0000, 0x8800},
307 {0x000a, 0x8801}, /* 0x01 //0x02 */
308 {0x0001, 0x8805},
309 {0x0000, 0x8800},
310 {0x0009, 0x8801}, /* 0x1061 - setexposure times && pixel clock
311 * 0001 0 | 000 0110 0001 */
312 {0x0061, 0x8805}, /* 61 31 */
313 {0x0008, 0x8800}, /* 08 */
314 {0x0035, 0x8801}, /* 0x14 - set gain general */
315 {0x001f, 0x8805}, /* 0x14 */
316 {0x0000, 0x8800},
317 {0x000e, 0x8112}, /* white balance - was 30 */
318 {}
319 };
320
321 /******************** QC Express etch2 stuff ********************/
322 static const __u16 Pb100_1map8300[][2] = {
323 /* reg, value */
324 {0x8320, 0x3304},
325
326 {0x8303, 0x0125}, /* image area */
327 {0x8304, 0x0169},
328 {0x8328, 0x000b},
329 {0x833c, 0x0001}, /*fixme: win:07*/
330
331 {0x832f, 0x1904}, /*fixme: was 0419*/
332 {0x8307, 0x00aa},
333 {0x8301, 0x0003},
334 {0x8302, 0x000e},
335 {}
336 };
337 static const __u16 Pb100_2map8300[][2] = {
338 /* reg, value */
339 {0x8339, 0x0000},
340 {0x8307, 0x00aa},
341 {}
342 };
343
344 static const __u16 spca561_161rev12A_data1[][2] = {
345 {0x29, 0x8118}, /* white balance - was 21 */
346 {0x08, 0x8114}, /* white balance - was 01 */
347 {0x0e, 0x8112}, /* white balance - was 00 */
348 {0x00, 0x8102}, /* white balance - new */
349 {0x92, 0x8804},
350 {0x04, 0x8802}, /* windows uses 08 */
351 {}
352 };
353 static const __u16 spca561_161rev12A_data2[][2] = {
354 {0x21, 0x8118},
355 {0x10, 0x8500},
356 {0x07, 0x8601},
357 {0x07, 0x8602},
358 {0x04, 0x8501},
359 {0x21, 0x8118},
360
361 {0x07, 0x8201}, /* windows uses 02 */
362 {0x08, 0x8200},
363 {0x01, 0x8200},
364
365 {0x00, 0x8114},
366 {0x01, 0x8114}, /* windows uses 00 */
367
368 {0x90, 0x8604},
369 {0x00, 0x8605},
370 {0xb0, 0x8603},
371
372 /* sensor gains */
373 {0x07, 0x8601}, /* white balance - new */
374 {0x07, 0x8602}, /* white balance - new */
375 {0x00, 0x8610}, /* *red */
376 {0x00, 0x8611}, /* 3f *green */
377 {0x00, 0x8612}, /* green *blue */
378 {0x00, 0x8613}, /* blue *green */
379 {0x43, 0x8614}, /* green *red - white balance - was 0x35 */
380 {0x40, 0x8615}, /* 40 *green - white balance - was 0x35 */
381 {0x71, 0x8616}, /* 7a *blue - white balance - was 0x35 */
382 {0x40, 0x8617}, /* 40 *green - white balance - was 0x35 */
383
384 {0x0c, 0x8620}, /* 0c */
385 {0xc8, 0x8631}, /* c8 */
386 {0xc8, 0x8634}, /* c8 */
387 {0x23, 0x8635}, /* 23 */
388 {0x1f, 0x8636}, /* 1f */
389 {0xdd, 0x8637}, /* dd */
390 {0xe1, 0x8638}, /* e1 */
391 {0x1d, 0x8639}, /* 1d */
392 {0x21, 0x863a}, /* 21 */
393 {0xe3, 0x863b}, /* e3 */
394 {0xdf, 0x863c}, /* df */
395 {0xf0, 0x8505},
396 {0x32, 0x850a},
397 /* {0x99, 0x8700}, * - white balance - new (removed) */
398 {}
399 };
400
401 static void reg_w_val(struct usb_device *dev, __u16 index, __u8 value)
402 {
403 int ret;
404
405 ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
406 0, /* request */
407 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
408 value, index, NULL, 0, 500);
409 PDEBUG(D_USBO, "reg write: 0x%02x:0x%02x", index, value);
410 if (ret < 0)
411 PDEBUG(D_ERR, "reg write: error %d", ret);
412 }
413
414 static void write_vector(struct gspca_dev *gspca_dev,
415 const __u16 data[][2])
416 {
417 struct usb_device *dev = gspca_dev->dev;
418 int i;
419
420 i = 0;
421 while (data[i][1] != 0) {
422 reg_w_val(dev, data[i][1], data[i][0]);
423 i++;
424 }
425 }
426
427 /* read 'len' bytes to gspca_dev->usb_buf */
428 static void reg_r(struct gspca_dev *gspca_dev,
429 __u16 index, __u16 length)
430 {
431 usb_control_msg(gspca_dev->dev,
432 usb_rcvctrlpipe(gspca_dev->dev, 0),
433 0, /* request */
434 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
435 0, /* value */
436 index, gspca_dev->usb_buf, length, 500);
437 }
438
439 /* write 'len' bytes from gspca_dev->usb_buf */
440 static void reg_w_buf(struct gspca_dev *gspca_dev,
441 __u16 index, __u16 len)
442 {
443 usb_control_msg(gspca_dev->dev,
444 usb_sndctrlpipe(gspca_dev->dev, 0),
445 0, /* request */
446 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
447 0, /* value */
448 index, gspca_dev->usb_buf, len, 500);
449 }
450
451 static void i2c_write(struct gspca_dev *gspca_dev, __u16 value, __u16 reg)
452 {
453 int retry = 60;
454
455 reg_w_val(gspca_dev->dev, 0x8801, reg);
456 reg_w_val(gspca_dev->dev, 0x8805, value);
457 reg_w_val(gspca_dev->dev, 0x8800, value >> 8);
458 do {
459 reg_r(gspca_dev, 0x8803, 1);
460 if (!gspca_dev->usb_buf[0])
461 return;
462 } while (--retry);
463 }
464
465 static int i2c_read(struct gspca_dev *gspca_dev, __u16 reg, __u8 mode)
466 {
467 int retry = 60;
468 __u8 value;
469
470 reg_w_val(gspca_dev->dev, 0x8804, 0x92);
471 reg_w_val(gspca_dev->dev, 0x8801, reg);
472 reg_w_val(gspca_dev->dev, 0x8802, mode | 0x01);
473 do {
474 reg_r(gspca_dev, 0x8803, 1);
475 if (!gspca_dev->usb_buf[0]) {
476 reg_r(gspca_dev, 0x8800, 1);
477 value = gspca_dev->usb_buf[0];
478 reg_r(gspca_dev, 0x8805, 1);
479 return ((int) value << 8) | gspca_dev->usb_buf[0];
480 }
481 } while (--retry);
482 return -1;
483 }
484
485 static void sensor_mapwrite(struct gspca_dev *gspca_dev,
486 const __u16 (*sensormap)[2])
487 {
488 while ((*sensormap)[0]) {
489 gspca_dev->usb_buf[0] = (*sensormap)[1];
490 gspca_dev->usb_buf[1] = (*sensormap)[1] >> 8;
491 reg_w_buf(gspca_dev, (*sensormap)[0], 2);
492 sensormap++;
493 }
494 }
495
496 static void write_sensor_72a(struct gspca_dev *gspca_dev,
497 const __u16 (*sensor)[2])
498 {
499 while ((*sensor)[0]) {
500 i2c_write(gspca_dev, (*sensor)[1], (*sensor)[0]);
501 sensor++;
502 }
503 }
504
505 static void init_161rev12A(struct gspca_dev *gspca_dev)
506 {
507 write_vector(gspca_dev, spca561_161rev12A_data1);
508 sensor_mapwrite(gspca_dev, Pb100_1map8300);
509 /*fixme: should be in sd_start*/
510 write_vector(gspca_dev, spca561_161rev12A_data2);
511 sensor_mapwrite(gspca_dev, Pb100_2map8300);
512 }
513
514 /* this function is called at probe time */
515 static int sd_config(struct gspca_dev *gspca_dev,
516 const struct usb_device_id *id)
517 {
518 struct sd *sd = (struct sd *) gspca_dev;
519 struct cam *cam;
520 __u16 vendor, product;
521 __u8 data1, data2;
522
523 /* Read frm global register the USB product and vendor IDs, just to
524 * prove that we can communicate with the device. This works, which
525 * confirms at we are communicating properly and that the device
526 * is a 561. */
527 reg_r(gspca_dev, 0x8104, 1);
528 data1 = gspca_dev->usb_buf[0];
529 reg_r(gspca_dev, 0x8105, 1);
530 data2 = gspca_dev->usb_buf[0];
531 vendor = (data2 << 8) | data1;
532 reg_r(gspca_dev, 0x8106, 1);
533 data1 = gspca_dev->usb_buf[0];
534 reg_r(gspca_dev, 0x8107, 1);
535 data2 = gspca_dev->usb_buf[0];
536 product = (data2 << 8) | data1;
537 if (vendor != id->idVendor || product != id->idProduct) {
538 PDEBUG(D_PROBE, "Bad vendor / product from device");
539 return -EINVAL;
540 }
541
542 cam = &gspca_dev->cam;
543 gspca_dev->nbalt = 7 + 1; /* choose alternate 7 first */
544
545 sd->chip_revision = id->driver_info;
546 if (sd->chip_revision == Rev012A) {
547 cam->cam_mode = sif_012a_mode;
548 cam->nmodes = ARRAY_SIZE(sif_012a_mode);
549 } else {
550 cam->cam_mode = sif_072a_mode;
551 cam->nmodes = ARRAY_SIZE(sif_072a_mode);
552 }
553 sd->brightness = BRIGHTNESS_DEF;
554 sd->contrast = CONTRAST_DEF;
555 sd->white = WHITE_DEF;
556 sd->exposure = EXPOSURE_DEF;
557 sd->autogain = AUTOGAIN_DEF;
558 sd->gain = GAIN_DEF;
559 sd->expo12a = EXPO12A_DEF;
560 return 0;
561 }
562
563 /* this function is called at probe and resume time */
564 static int sd_init_12a(struct gspca_dev *gspca_dev)
565 {
566 PDEBUG(D_STREAM, "Chip revision: 012a");
567 init_161rev12A(gspca_dev);
568 return 0;
569 }
570 static int sd_init_72a(struct gspca_dev *gspca_dev)
571 {
572 PDEBUG(D_STREAM, "Chip revision: 072a");
573 write_vector(gspca_dev, rev72a_init_data1);
574 write_sensor_72a(gspca_dev, rev72a_init_sensor1);
575 write_vector(gspca_dev, rev72a_init_data2);
576 write_sensor_72a(gspca_dev, rev72a_init_sensor2);
577 write_vector(gspca_dev, rev72a_init_data3);
578 return 0;
579 }
580
581 /* rev 72a only */
582 static void setbrightness(struct gspca_dev *gspca_dev)
583 {
584 struct sd *sd = (struct sd *) gspca_dev;
585 struct usb_device *dev = gspca_dev->dev;
586 __u8 value;
587
588 value = sd->brightness;
589
590 /* offsets for white balance */
591 reg_w_val(dev, 0x8611, value); /* R */
592 reg_w_val(dev, 0x8612, value); /* Gr */
593 reg_w_val(dev, 0x8613, value); /* B */
594 reg_w_val(dev, 0x8614, value); /* Gb */
595 }
596
597 static void setwhite(struct gspca_dev *gspca_dev)
598 {
599 struct sd *sd = (struct sd *) gspca_dev;
600 __u16 white;
601 __u8 blue, red;
602 __u16 reg;
603
604 /* try to emulate MS-win as possible */
605 white = sd->white;
606 red = 0x20 + white * 3 / 8;
607 blue = 0x90 - white * 5 / 8;
608 if (sd->chip_revision == Rev012A) {
609 reg = 0x8614;
610 } else {
611 reg = 0x8651;
612 red += sd->contrast - 0x20;
613 blue += sd->contrast - 0x20;
614 }
615 reg_w_val(gspca_dev->dev, reg, red);
616 reg_w_val(gspca_dev->dev, reg + 2, blue);
617 }
618
619 static void setcontrast(struct gspca_dev *gspca_dev)
620 {
621 struct sd *sd = (struct sd *) gspca_dev;
622 struct usb_device *dev = gspca_dev->dev;
623 __u8 value;
624
625 if (sd->chip_revision != Rev072A)
626 return;
627 value = sd->contrast + 0x20;
628
629 /* gains for white balance */
630 setwhite(gspca_dev);
631 /* reg_w_val(dev, 0x8651, value); * R - done by setwhite */
632 reg_w_val(dev, 0x8652, value); /* Gr */
633 /* reg_w_val(dev, 0x8653, value); * B - done by setwhite */
634 reg_w_val(dev, 0x8654, value); /* Gb */
635 }
636
637 /* rev 12a only */
638 static void setexposure(struct gspca_dev *gspca_dev)
639 {
640 struct sd *sd = (struct sd *) gspca_dev;
641 int expo;
642 int clock_divider;
643
644 /* Register 0x8309 controls exposure for the spca561,
645 the basic exposure setting goes from 1-2047, where 1 is completely
646 dark and 2047 is very bright. It not only influences exposure but
647 also the framerate (to allow for longer exposure) from 1 - 300 it
648 only raises the exposure time then from 300 - 600 it halves the
649 framerate to be able to further raise the exposure time and for every
650 300 more it halves the framerate again. This allows for a maximum
651 exposure time of circa 0.2 - 0.25 seconds (30 / (2000/3000) fps).
652 Sometimes this is not enough, the 1-2047 uses bits 0-10, bits 11-12
653 configure a divider for the base framerate which us used at the
654 exposure setting of 1-300. These bits configure the base framerate
655 according to the following formula: fps = 60 / (value + 2) */
656 if (sd->exposure < 2048) {
657 expo = sd->exposure;
658 clock_divider = 0;
659 } else {
660 /* Add 900 to make the 0 setting of the second part of the
661 exposure equal to the 2047 setting of the first part. */
662 expo = (sd->exposure - 2048) + 900;
663 clock_divider = 3;
664 }
665 expo |= clock_divider << 11;
666 gspca_dev->usb_buf[0] = expo;
667 gspca_dev->usb_buf[1] = expo >> 8;
668 reg_w_buf(gspca_dev, 0x8309, 2);
669 }
670
671 /* rev 12a only */
672 static void setgain(struct gspca_dev *gspca_dev)
673 {
674 struct sd *sd = (struct sd *) gspca_dev;
675
676 gspca_dev->usb_buf[0] = sd->gain;
677 gspca_dev->usb_buf[1] = 0;
678 reg_w_buf(gspca_dev, 0x8335, 2);
679 }
680
681 static void setautogain(struct gspca_dev *gspca_dev)
682 {
683 struct sd *sd = (struct sd *) gspca_dev;
684
685 if (sd->autogain)
686 sd->ag_cnt = AG_CNT_START;
687 else
688 sd->ag_cnt = -1;
689 }
690
691 static int sd_start_12a(struct gspca_dev *gspca_dev)
692 {
693 struct usb_device *dev = gspca_dev->dev;
694 int mode;
695 static const __u8 Reg8391[8] =
696 {0x92, 0x30, 0x20, 0x00, 0x0c, 0x00, 0x00, 0x00};
697
698 mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
699 if (mode <= 1) {
700 /* Use compression on 320x240 and above */
701 reg_w_val(dev, 0x8500, 0x10 | mode);
702 } else {
703 /* I couldn't get the compression to work below 320x240
704 * Fortunately at these resolutions the bandwidth
705 * is sufficient to push raw frames at ~20fps */
706 reg_w_val(dev, 0x8500, mode);
707 } /* -- qq@kuku.eu.org */
708
709 gspca_dev->usb_buf[0] = 0xaa;
710 gspca_dev->usb_buf[1] = 0x00;
711 reg_w_buf(gspca_dev, 0x8307, 2);
712 /* clock - lower 0x8X values lead to fps > 30 */
713 reg_w_val(gspca_dev->dev, 0x8700, 0x8a);
714 /* 0x8f 0x85 0x27 clock */
715 reg_w_val(gspca_dev->dev, 0x8112, 0x1e | 0x20);
716 reg_w_val(gspca_dev->dev, 0x850b, 0x03);
717 memcpy(gspca_dev->usb_buf, Reg8391, 8);
718 reg_w_buf(gspca_dev, 0x8391, 8);
719 reg_w_buf(gspca_dev, 0x8390, 8);
720 setwhite(gspca_dev);
721 setautogain(gspca_dev);
722 /* setgain(gspca_dev); */
723 setexposure(gspca_dev);
724 return 0;
725 }
726 static int sd_start_72a(struct gspca_dev *gspca_dev)
727 {
728 struct usb_device *dev = gspca_dev->dev;
729 int Clck;
730 int mode;
731
732 mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
733 switch (mode) {
734 default:
735 /* case 0:
736 case 1: */
737 Clck = 0x25;
738 break;
739 case 2:
740 Clck = 0x22;
741 break;
742 case 3:
743 Clck = 0x21;
744 break;
745 }
746 reg_w_val(dev, 0x8500, mode); /* mode */
747 reg_w_val(dev, 0x8700, Clck); /* 0x27 clock */
748 reg_w_val(dev, 0x8112, 0x10 | 0x20);
749 setcontrast(gspca_dev);
750 /* setbrightness(gspca_dev); * fixme: bad values */
751 setwhite(gspca_dev);
752 setautogain(gspca_dev);
753 return 0;
754 }
755
756 static void sd_stopN(struct gspca_dev *gspca_dev)
757 {
758 struct sd *sd = (struct sd *) gspca_dev;
759
760 if (sd->chip_revision == Rev012A) {
761 reg_w_val(gspca_dev->dev, 0x8112, 0x0e);
762 } else {
763 reg_w_val(gspca_dev->dev, 0x8112, 0x20);
764 /* reg_w_val(gspca_dev->dev, 0x8102, 0x00); ?? */
765 }
766 }
767
768 /* called on streamoff with alt 0 and on disconnect */
769 static void sd_stop0(struct gspca_dev *gspca_dev)
770 {
771 struct sd *sd = (struct sd *) gspca_dev;
772
773 if (!gspca_dev->present)
774 return;
775 if (sd->chip_revision == Rev012A) {
776 reg_w_val(gspca_dev->dev, 0x8118, 0x29);
777 reg_w_val(gspca_dev->dev, 0x8114, 0x08);
778 }
779 /* reg_w_val(gspca_dev->dev, 0x8114, 0); */
780 }
781
782 static void do_autogain(struct gspca_dev *gspca_dev)
783 {
784 struct sd *sd = (struct sd *) gspca_dev;
785 int expotimes;
786 int pixelclk;
787 int gainG;
788 __u8 R, Gr, Gb, B;
789 int y;
790 __u8 luma_mean = 110;
791 __u8 luma_delta = 20;
792 __u8 spring = 4;
793
794 if (sd->ag_cnt < 0)
795 return;
796 if (--sd->ag_cnt >= 0)
797 return;
798 sd->ag_cnt = AG_CNT_START;
799
800 switch (sd->chip_revision) {
801 case Rev072A:
802 reg_r(gspca_dev, 0x8621, 1);
803 Gr = gspca_dev->usb_buf[0];
804 reg_r(gspca_dev, 0x8622, 1);
805 R = gspca_dev->usb_buf[0];
806 reg_r(gspca_dev, 0x8623, 1);
807 B = gspca_dev->usb_buf[0];
808 reg_r(gspca_dev, 0x8624, 1);
809 Gb = gspca_dev->usb_buf[0];
810 y = (77 * R + 75 * (Gr + Gb) + 29 * B) >> 8;
811 /* u= (128*B-(43*(Gr+Gb+R))) >> 8; */
812 /* v= (128*R-(53*(Gr+Gb))-21*B) >> 8; */
813 /* PDEBUG(D_CONF,"reading Y %d U %d V %d ",y,u,v); */
814
815 if (y < luma_mean - luma_delta ||
816 y > luma_mean + luma_delta) {
817 expotimes = i2c_read(gspca_dev, 0x09, 0x10);
818 pixelclk = 0x0800;
819 expotimes = expotimes & 0x07ff;
820 /* PDEBUG(D_PACK,
821 "Exposition Times 0x%03X Clock 0x%04X ",
822 expotimes,pixelclk); */
823 gainG = i2c_read(gspca_dev, 0x35, 0x10);
824 /* PDEBUG(D_PACK,
825 "reading Gain register %d", gainG); */
826
827 expotimes += (luma_mean - y) >> spring;
828 gainG += (luma_mean - y) / 50;
829 /* PDEBUG(D_PACK,
830 "compute expotimes %d gain %d",
831 expotimes,gainG); */
832
833 if (gainG > 0x3f)
834 gainG = 0x3f;
835 else if (gainG < 3)
836 gainG = 3;
837 i2c_write(gspca_dev, gainG, 0x35);
838
839 if (expotimes > 0x0256)
840 expotimes = 0x0256;
841 else if (expotimes < 3)
842 expotimes = 3;
843 i2c_write(gspca_dev, expotimes | pixelclk, 0x09);
844 }
845 break;
846 case Rev012A:
847 reg_r(gspca_dev, 0x8330, 2);
848 if (gspca_dev->usb_buf[1] > 0x08) {
849 gspca_dev->usb_buf[0] = ++sd->expo12a;
850 gspca_dev->usb_buf[1] = 0;
851 reg_w_buf(gspca_dev, 0x8339, 2);
852 } else if (gspca_dev->usb_buf[1] < 0x02) {
853 gspca_dev->usb_buf[0] = --sd->expo12a;
854 gspca_dev->usb_buf[1] = 0;
855 reg_w_buf(gspca_dev, 0x8339, 2);
856 }
857 break;
858 }
859 }
860
861 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
862 struct gspca_frame *frame, /* target */
863 __u8 *data, /* isoc packet */
864 int len) /* iso packet length */
865 {
866 struct sd *sd = (struct sd *) gspca_dev;
867
868 len--;
869 switch (*data++) { /* sequence number */
870 case 0: /* start of frame */
871 frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
872 data, 0);
873 if (data[1] & 0x10) {
874 /* compressed bayer */
875 gspca_frame_add(gspca_dev, FIRST_PACKET,
876 frame, data, len);
877 } else {
878 /* raw bayer (with a header, which we skip) */
879 if (sd->chip_revision == Rev012A) {
880 data += 20;
881 len -= 20;
882 } else {
883 data += 16;
884 len -= 16;
885 }
886 gspca_frame_add(gspca_dev, FIRST_PACKET,
887 frame, data, len);
888 }
889 return;
890 case 0xff: /* drop (empty mpackets) */
891 return;
892 }
893 gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
894 }
895
896 /* rev 72a only */
897 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
898 {
899 struct sd *sd = (struct sd *) gspca_dev;
900
901 sd->brightness = val;
902 if (gspca_dev->streaming)
903 setbrightness(gspca_dev);
904 return 0;
905 }
906
907 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
908 {
909 struct sd *sd = (struct sd *) gspca_dev;
910
911 *val = sd->brightness;
912 return 0;
913 }
914
915 /* rev 72a only */
916 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
917 {
918 struct sd *sd = (struct sd *) gspca_dev;
919
920 sd->contrast = val;
921 if (gspca_dev->streaming)
922 setcontrast(gspca_dev);
923 return 0;
924 }
925
926 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
927 {
928 struct sd *sd = (struct sd *) gspca_dev;
929
930 *val = sd->contrast;
931 return 0;
932 }
933
934 static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
935 {
936 struct sd *sd = (struct sd *) gspca_dev;
937
938 sd->autogain = val;
939 if (gspca_dev->streaming)
940 setautogain(gspca_dev);
941 return 0;
942 }
943
944 static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val)
945 {
946 struct sd *sd = (struct sd *) gspca_dev;
947
948 *val = sd->autogain;
949 return 0;
950 }
951
952 static int sd_setwhite(struct gspca_dev *gspca_dev, __s32 val)
953 {
954 struct sd *sd = (struct sd *) gspca_dev;
955
956 sd->white = val;
957 if (gspca_dev->streaming)
958 setwhite(gspca_dev);
959 return 0;
960 }
961
962 static int sd_getwhite(struct gspca_dev *gspca_dev, __s32 *val)
963 {
964 struct sd *sd = (struct sd *) gspca_dev;
965
966 *val = sd->white;
967 return 0;
968 }
969
970 /* rev12a only */
971 static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val)
972 {
973 struct sd *sd = (struct sd *) gspca_dev;
974
975 sd->exposure = val;
976 if (gspca_dev->streaming)
977 setexposure(gspca_dev);
978 return 0;
979 }
980
981 static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val)
982 {
983 struct sd *sd = (struct sd *) gspca_dev;
984
985 *val = sd->exposure;
986 return 0;
987 }
988
989 /* rev12a only */
990 static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val)
991 {
992 struct sd *sd = (struct sd *) gspca_dev;
993
994 sd->gain = val;
995 if (gspca_dev->streaming)
996 setgain(gspca_dev);
997 return 0;
998 }
999
1000 static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val)
1001 {
1002 struct sd *sd = (struct sd *) gspca_dev;
1003
1004 *val = sd->gain;
1005 return 0;
1006 }
1007
1008 /* control tables */
1009 static struct ctrl sd_ctrls_12a[] = {
1010 {
1011 {
1012 .id = V4L2_CID_DO_WHITE_BALANCE,
1013 .type = V4L2_CTRL_TYPE_INTEGER,
1014 .name = "White Balance",
1015 .minimum = WHITE_MIN,
1016 .maximum = WHITE_MAX,
1017 .step = 1,
1018 .default_value = WHITE_DEF,
1019 },
1020 .set = sd_setwhite,
1021 .get = sd_getwhite,
1022 },
1023 {
1024 {
1025 .id = V4L2_CID_EXPOSURE,
1026 .type = V4L2_CTRL_TYPE_INTEGER,
1027 .name = "Exposure",
1028 .minimum = EXPOSURE_MIN,
1029 .maximum = EXPOSURE_MAX,
1030 .step = 1,
1031 .default_value = EXPOSURE_DEF,
1032 },
1033 .set = sd_setexposure,
1034 .get = sd_getexposure,
1035 },
1036 {
1037 {
1038 .id = V4L2_CID_AUTOGAIN,
1039 .type = V4L2_CTRL_TYPE_BOOLEAN,
1040 .name = "Auto Gain",
1041 .minimum = AUTOGAIN_MIN,
1042 .maximum = AUTOGAIN_MAX,
1043 .step = 1,
1044 .default_value = AUTOGAIN_DEF,
1045 },
1046 .set = sd_setautogain,
1047 .get = sd_getautogain,
1048 },
1049 {
1050 {
1051 .id = V4L2_CID_GAIN,
1052 .type = V4L2_CTRL_TYPE_INTEGER,
1053 .name = "Gain",
1054 .minimum = GAIN_MIN,
1055 .maximum = GAIN_MAX,
1056 .step = 1,
1057 .default_value = GAIN_DEF,
1058 },
1059 .set = sd_setgain,
1060 .get = sd_getgain,
1061 },
1062 };
1063
1064 static struct ctrl sd_ctrls_72a[] = {
1065 {
1066 {
1067 .id = V4L2_CID_DO_WHITE_BALANCE,
1068 .type = V4L2_CTRL_TYPE_INTEGER,
1069 .name = "White Balance",
1070 .minimum = WHITE_MIN,
1071 .maximum = WHITE_MAX,
1072 .step = 1,
1073 .default_value = WHITE_DEF,
1074 },
1075 .set = sd_setwhite,
1076 .get = sd_getwhite,
1077 },
1078 {
1079 {
1080 .id = V4L2_CID_BRIGHTNESS,
1081 .type = V4L2_CTRL_TYPE_INTEGER,
1082 .name = "Brightness",
1083 .minimum = BRIGHTNESS_MIN,
1084 .maximum = BRIGHTNESS_MAX,
1085 .step = 1,
1086 .default_value = BRIGHTNESS_DEF,
1087 },
1088 .set = sd_setbrightness,
1089 .get = sd_getbrightness,
1090 },
1091 {
1092 {
1093 .id = V4L2_CID_CONTRAST,
1094 .type = V4L2_CTRL_TYPE_INTEGER,
1095 .name = "Contrast",
1096 .minimum = CONTRAST_MIN,
1097 .maximum = CONTRAST_MAX,
1098 .step = 1,
1099 .default_value = CONTRAST_DEF,
1100 },
1101 .set = sd_setcontrast,
1102 .get = sd_getcontrast,
1103 },
1104 {
1105 {
1106 .id = V4L2_CID_AUTOGAIN,
1107 .type = V4L2_CTRL_TYPE_BOOLEAN,
1108 .name = "Auto Gain",
1109 .minimum = AUTOGAIN_MIN,
1110 .maximum = AUTOGAIN_MAX,
1111 .step = 1,
1112 .default_value = AUTOGAIN_DEF,
1113 },
1114 .set = sd_setautogain,
1115 .get = sd_getautogain,
1116 },
1117 };
1118
1119 /* sub-driver description */
1120 static const struct sd_desc sd_desc_12a = {
1121 .name = MODULE_NAME,
1122 .ctrls = sd_ctrls_12a,
1123 .nctrls = ARRAY_SIZE(sd_ctrls_12a),
1124 .config = sd_config,
1125 .init = sd_init_12a,
1126 .start = sd_start_12a,
1127 .stopN = sd_stopN,
1128 .stop0 = sd_stop0,
1129 .pkt_scan = sd_pkt_scan,
1130 /* .dq_callback = do_autogain, * fixme */
1131 };
1132 static const struct sd_desc sd_desc_72a = {
1133 .name = MODULE_NAME,
1134 .ctrls = sd_ctrls_72a,
1135 .nctrls = ARRAY_SIZE(sd_ctrls_72a),
1136 .config = sd_config,
1137 .init = sd_init_72a,
1138 .start = sd_start_72a,
1139 .stopN = sd_stopN,
1140 .stop0 = sd_stop0,
1141 .pkt_scan = sd_pkt_scan,
1142 .dq_callback = do_autogain,
1143 };
1144 static const struct sd_desc *sd_desc[2] = {
1145 &sd_desc_12a,
1146 &sd_desc_72a
1147 };
1148
1149 /* -- module initialisation -- */
1150 static const __devinitdata struct usb_device_id device_table[] = {
1151 {USB_DEVICE(0x041e, 0x401a), .driver_info = Rev072A},
1152 {USB_DEVICE(0x041e, 0x403b), .driver_info = Rev012A},
1153 {USB_DEVICE(0x0458, 0x7004), .driver_info = Rev072A},
1154 {USB_DEVICE(0x046d, 0x0928), .driver_info = Rev012A},
1155 {USB_DEVICE(0x046d, 0x0929), .driver_info = Rev012A},
1156 {USB_DEVICE(0x046d, 0x092a), .driver_info = Rev012A},
1157 {USB_DEVICE(0x046d, 0x092b), .driver_info = Rev012A},
1158 {USB_DEVICE(0x046d, 0x092c), .driver_info = Rev012A},
1159 {USB_DEVICE(0x046d, 0x092d), .driver_info = Rev012A},
1160 {USB_DEVICE(0x046d, 0x092e), .driver_info = Rev012A},
1161 {USB_DEVICE(0x046d, 0x092f), .driver_info = Rev012A},
1162 {USB_DEVICE(0x04fc, 0x0561), .driver_info = Rev072A},
1163 {USB_DEVICE(0x060b, 0xa001), .driver_info = Rev072A},
1164 {USB_DEVICE(0x10fd, 0x7e50), .driver_info = Rev072A},
1165 {USB_DEVICE(0xabcd, 0xcdee), .driver_info = Rev072A},
1166 {}
1167 };
1168
1169 MODULE_DEVICE_TABLE(usb, device_table);
1170
1171 /* -- device connect -- */
1172 static int sd_probe(struct usb_interface *intf,
1173 const struct usb_device_id *id)
1174 {
1175 return gspca_dev_probe(intf, id,
1176 sd_desc[id->driver_info],
1177 sizeof(struct sd),
1178 THIS_MODULE);
1179 }
1180
1181 static struct usb_driver sd_driver = {
1182 .name = MODULE_NAME,
1183 .id_table = device_table,
1184 .probe = sd_probe,
1185 .disconnect = gspca_disconnect,
1186 #ifdef CONFIG_PM
1187 .suspend = gspca_suspend,
1188 .resume = gspca_resume,
1189 #endif
1190 };
1191
1192 /* -- module insert / remove -- */
1193 static int __init sd_mod_init(void)
1194 {
1195 int ret;
1196 ret = usb_register(&sd_driver);
1197 if (ret < 0)
1198 return ret;
1199 PDEBUG(D_PROBE, "registered");
1200 return 0;
1201 }
1202 static void __exit sd_mod_exit(void)
1203 {
1204 usb_deregister(&sd_driver);
1205 PDEBUG(D_PROBE, "deregistered");
1206 }
1207
1208 module_init(sd_mod_init);
1209 module_exit(sd_mod_exit);
Support for the Chinese Samsung S3C2440 based development boards