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V4L/DVB (8193): gspca: Input buffer may be changed on reg write.
[linux-2.6/btrfs-unstable.git] / drivers / media / video / gspca / etoms.c
blobed7a8f9c0d7a3d8a4d7679ecd58899c5859ff409
1 /*
2 * Etoms Et61x151 GPL Linux driver by Michel Xhaard (09/09/2004)
3 *
4 * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21 #define MODULE_NAME "etoms"
22
23 #include "gspca.h"
24
25 #define DRIVER_VERSION_NUMBER KERNEL_VERSION(2, 1, 3)
26 static const char version[] = "2.1.3";
27
28 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
29 MODULE_DESCRIPTION("Etoms USB Camera Driver");
30 MODULE_LICENSE("GPL");
31
32 /* specific webcam descriptor */
33 struct sd {
34 struct gspca_dev gspca_dev; /* !! must be the first item */
35
36 unsigned char brightness;
37 unsigned char contrast;
38 unsigned char colors;
39 unsigned char autogain;
40
41 char sensor;
42 #define SENSOR_PAS106 0
43 #define SENSOR_TAS5130CXX 1
44 signed char ag_cnt;
45 #define AG_CNT_START 13
46 };
47
48 /* V4L2 controls supported by the driver */
49 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
50 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
51 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
52 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
53 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val);
54 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
55 static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val);
56 static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val);
57
58 static struct ctrl sd_ctrls[] = {
59 #define SD_BRIGHTNESS 0
60 {
61 {
62 .id = V4L2_CID_BRIGHTNESS,
63 .type = V4L2_CTRL_TYPE_INTEGER,
64 .name = "Brightness",
65 .minimum = 1,
66 .maximum = 127,
67 .step = 1,
68 .default_value = 63,
69 },
70 .set = sd_setbrightness,
71 .get = sd_getbrightness,
72 },
73 #define SD_CONTRAST 1
74 {
75 {
76 .id = V4L2_CID_CONTRAST,
77 .type = V4L2_CTRL_TYPE_INTEGER,
78 .name = "Contrast",
79 .minimum = 0,
80 .maximum = 255,
81 .step = 1,
82 .default_value = 127,
83 },
84 .set = sd_setcontrast,
85 .get = sd_getcontrast,
86 },
87 #define SD_COLOR 2
88 {
89 {
90 .id = V4L2_CID_SATURATION,
91 .type = V4L2_CTRL_TYPE_INTEGER,
92 .name = "Color",
93 .minimum = 0,
94 .maximum = 15,
95 .step = 1,
96 .default_value = 7,
97 },
98 .set = sd_setcolors,
99 .get = sd_getcolors,
100 },
101 #define SD_AUTOGAIN 3
102 {
103 {
104 .id = V4L2_CID_AUTOGAIN,
105 .type = V4L2_CTRL_TYPE_BOOLEAN,
106 .name = "Auto Gain",
107 .minimum = 0,
108 .maximum = 1,
109 .step = 1,
110 .default_value = 1,
111 },
112 .set = sd_setautogain,
113 .get = sd_getautogain,
114 },
115 };
116
117 static struct cam_mode vga_mode[] = {
118 {V4L2_PIX_FMT_SBGGR8, 320, 240, 1},
119 /* {V4L2_PIX_FMT_SBGGR8, 640, 480, 0}, */
120 };
121
122 static struct cam_mode sif_mode[] = {
123 {V4L2_PIX_FMT_SBGGR8, 176, 144, 1},
124 {V4L2_PIX_FMT_SBGGR8, 352, 288, 0},
125 };
126
127 #define ETOMS_ALT_SIZE_1000 12
128
129 #define ET_GPIO_DIR_CTRL 0x04 /* Control IO bit[0..5] (0 in 1 out) */
130 #define ET_GPIO_OUT 0x05 /* Only IO data */
131 #define ET_GPIO_IN 0x06 /* Read Only IO data */
132 #define ET_RESET_ALL 0x03
133 #define ET_ClCK 0x01
134 #define ET_CTRL 0x02 /* enable i2c OutClck Powerdown mode */
135
136 #define ET_COMP 0x12 /* Compression register */
137 #define ET_MAXQt 0x13
138 #define ET_MINQt 0x14
139 #define ET_COMP_VAL0 0x02
140 #define ET_COMP_VAL1 0x03
141
142 #define ET_REG1d 0x1d
143 #define ET_REG1e 0x1e
144 #define ET_REG1f 0x1f
145 #define ET_REG20 0x20
146 #define ET_REG21 0x21
147 #define ET_REG22 0x22
148 #define ET_REG23 0x23
149 #define ET_REG24 0x24
150 #define ET_REG25 0x25
151 /* base registers for luma calculation */
152 #define ET_LUMA_CENTER 0x39
153
154 #define ET_G_RED 0x4d
155 #define ET_G_GREEN1 0x4e
156 #define ET_G_BLUE 0x4f
157 #define ET_G_GREEN2 0x50
158 #define ET_G_GR_H 0x51
159 #define ET_G_GB_H 0x52
160
161 #define ET_O_RED 0x34
162 #define ET_O_GREEN1 0x35
163 #define ET_O_BLUE 0x36
164 #define ET_O_GREEN2 0x37
165
166 #define ET_SYNCHRO 0x68
167 #define ET_STARTX 0x69
168 #define ET_STARTY 0x6a
169 #define ET_WIDTH_LOW 0x6b
170 #define ET_HEIGTH_LOW 0x6c
171 #define ET_W_H_HEIGTH 0x6d
172
173 #define ET_REG6e 0x6e /* OBW */
174 #define ET_REG6f 0x6f /* OBW */
175 #define ET_REG70 0x70 /* OBW_AWB */
176 #define ET_REG71 0x71 /* OBW_AWB */
177 #define ET_REG72 0x72 /* OBW_AWB */
178 #define ET_REG73 0x73 /* Clkdelay ns */
179 #define ET_REG74 0x74 /* test pattern */
180 #define ET_REG75 0x75 /* test pattern */
181
182 #define ET_I2C_CLK 0x8c
183 #define ET_PXL_CLK 0x60
184
185 #define ET_I2C_BASE 0x89
186 #define ET_I2C_COUNT 0x8a
187 #define ET_I2C_PREFETCH 0x8b
188 #define ET_I2C_REG 0x88
189 #define ET_I2C_DATA7 0x87
190 #define ET_I2C_DATA6 0x86
191 #define ET_I2C_DATA5 0x85
192 #define ET_I2C_DATA4 0x84
193 #define ET_I2C_DATA3 0x83
194 #define ET_I2C_DATA2 0x82
195 #define ET_I2C_DATA1 0x81
196 #define ET_I2C_DATA0 0x80
197
198 #define PAS106_REG2 0x02 /* pxlClk = systemClk/(reg2) */
199 #define PAS106_REG3 0x03 /* line/frame H [11..4] */
200 #define PAS106_REG4 0x04 /* line/frame L [3..0] */
201 #define PAS106_REG5 0x05 /* exposure time line offset(default 5) */
202 #define PAS106_REG6 0x06 /* exposure time pixel offset(default 6) */
203 #define PAS106_REG7 0x07 /* signbit Dac (default 0) */
204 #define PAS106_REG9 0x09
205 #define PAS106_REG0e 0x0e /* global gain [4..0](default 0x0e) */
206 #define PAS106_REG13 0x13 /* end i2c write */
207
208 static __u8 GainRGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
209
210 static __u8 I2c2[] = { 0x08, 0x08, 0x08, 0x08, 0x0d };
211
212 static __u8 I2c3[] = { 0x12, 0x05 };
213
214 static __u8 I2c4[] = { 0x41, 0x08 };
215
216 static void reg_r(struct usb_device *dev,
217 __u16 index, __u8 *buffer, int len)
218 {
219 usb_control_msg(dev,
220 usb_rcvctrlpipe(dev, 0),
221 0,
222 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
223 0, index, buffer, len, 500);
224 }
225
226 static void reg_w(struct usb_device *dev,
227 __u16 index, __u8 *buffer, __u16 len)
228 {
229 __u8 tmpbuf[8];
230
231 memcpy(tmpbuf, buffer, len);
232 usb_control_msg(dev,
233 usb_sndctrlpipe(dev, 0),
234 0,
235 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
236 0, index, tmpbuf, len, 500);
237 }
238
239 static int Et_i2cwrite(struct usb_device *dev, __u8 reg, __u8 *buffer,
240 __u16 length, __u8 mode)
241 {
242 /* buffer should be [D0..D7] */
243 int i, j;
244 __u8 base = 0x40; /* sensor base for the pas106 */
245 __u8 ptchcount = 0;
246
247 ptchcount = (((length & 0x07) << 4) | (mode & 0x03));
248 /* set the base address */
249 reg_w(dev, ET_I2C_BASE, &base, 1);
250 /* set count and prefetch */
251 reg_w(dev, ET_I2C_COUNT, &ptchcount, 1);
252 /* set the register base */
253 reg_w(dev, ET_I2C_REG, &reg, 1);
254 j = length - 1;
255 for (i = 0; i < length; i++) {
256 reg_w(dev, (ET_I2C_DATA0 + j), &buffer[j], 1);
257 j--;
258 }
259 return 0;
260 }
261
262 static int Et_i2cread(struct usb_device *dev, __u8 reg, __u8 *buffer,
263 __u16 length, __u8 mode)
264 {
265 /* buffer should be [D0..D7] */
266 int i, j;
267 __u8 base = 0x40; /* sensor base for the pas106 */
268 __u8 ptchcount;
269 __u8 prefetch = 0x02;
270
271 ptchcount = (((length & 0x07) << 4) | (mode & 0x03));
272 /* set the base address */
273 reg_w(dev, ET_I2C_BASE, &base, 1);
274 /* set count and prefetch */
275 reg_w(dev, ET_I2C_COUNT, &ptchcount, 1);
276 /* set the register base */
277 reg_w(dev, ET_I2C_REG, &reg, 1);
278 reg_w(dev, ET_I2C_PREFETCH, &prefetch, 1);
279 prefetch = 0x00;
280 reg_w(dev, ET_I2C_PREFETCH, &prefetch, 1);
281 j = length - 1;
282 for (i = 0; i < length; i++) {
283 reg_r(dev, (ET_I2C_DATA0 + j), &buffer[j], 1);
284 j--;
285 }
286 return 0;
287 }
288
289 static int Et_WaitStatus(struct usb_device *dev)
290 {
291 __u8 bytereceived;
292 int retry = 10;
293
294 while (retry--) {
295 reg_r(dev, ET_ClCK, &bytereceived, 1);
296 if (bytereceived != 0)
297 return 1;
298 }
299 return 0;
300 }
301
302 static int Et_videoOff(struct usb_device *dev)
303 {
304 int err;
305 __u8 stopvideo = 0;
306
307 reg_w(dev, ET_GPIO_OUT, &stopvideo, 1);
308 err = Et_WaitStatus(dev);
309 if (!err)
310 PDEBUG(D_ERR, "timeout Et_waitStatus VideoON");
311 return err;
312 }
313
314 static int Et_videoOn(struct usb_device *dev)
315 {
316 int err;
317 __u8 startvideo = 0x10; /* set Bit5 */
318
319 reg_w(dev, ET_GPIO_OUT, &startvideo, 1);
320 err = Et_WaitStatus(dev);
321 if (!err)
322 PDEBUG(D_ERR, "timeout Et_waitStatus VideoOFF");
323 return err;
324 }
325
326 static void Et_init2(struct gspca_dev *gspca_dev)
327 {
328 struct usb_device *dev = gspca_dev->dev;
329 __u8 value = 0x00;
330 __u8 received = 0x00;
331 __u8 FormLine[] = { 0x84, 0x03, 0x14, 0xf4, 0x01, 0x05 };
332
333 PDEBUG(D_STREAM, "Open Init2 ET");
334 value = 0x2f;
335 reg_w(dev, ET_GPIO_DIR_CTRL, &value, 1);
336 value = 0x10;
337 reg_w(dev, ET_GPIO_OUT, &value, 1);
338 reg_r(dev, ET_GPIO_IN, &received, 1);
339 value = 0x14; /* 0x14 // 0x16 enabled pattern */
340 reg_w(dev, ET_ClCK, &value, 1);
341 value = 0x1b;
342 reg_w(dev, ET_CTRL, &value, 1);
343
344 /* compression et subsampling */
345 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].mode)
346 value = ET_COMP_VAL1; /* 320 */
347 else
348 value = ET_COMP_VAL0; /* 640 */
349 reg_w(dev, ET_COMP, &value, 1);
350 value = 0x1f;
351 reg_w(dev, ET_MAXQt, &value, 1);
352 value = 0x04;
353 reg_w(dev, ET_MINQt, &value, 1);
354 /* undocumented registers */
355 value = 0xff;
356 reg_w(dev, ET_REG1d, &value, 1);
357 value = 0xff;
358 reg_w(dev, ET_REG1e, &value, 1);
359 value = 0xff;
360 reg_w(dev, ET_REG1f, &value, 1);
361 value = 0x35;
362 reg_w(dev, ET_REG20, &value, 1);
363 value = 0x01;
364 reg_w(dev, ET_REG21, &value, 1);
365 value = 0x00;
366 reg_w(dev, ET_REG22, &value, 1);
367 value = 0xff;
368 reg_w(dev, ET_REG23, &value, 1);
369 value = 0xff;
370 reg_w(dev, ET_REG24, &value, 1);
371 value = 0x0f;
372 reg_w(dev, ET_REG25, &value, 1);
373 /* colors setting */
374 value = 0x11;
375 reg_w(dev, 0x30, &value, 1); /* 0x30 */
376 value = 0x40;
377 reg_w(dev, 0x31, &value, 1);
378 value = 0x00;
379 reg_w(dev, 0x32, &value, 1);
380 value = 0x00;
381 reg_w(dev, ET_O_RED, &value, 1); /* 0x34 */
382 value = 0x00;
383 reg_w(dev, ET_O_GREEN1, &value, 1);
384 value = 0x00;
385 reg_w(dev, ET_O_BLUE, &value, 1);
386 value = 0x00;
387 reg_w(dev, ET_O_GREEN2, &value, 1);
388 /*************/
389 value = 0x80;
390 reg_w(dev, ET_G_RED, &value, 1); /* 0x4d */
391 value = 0x80;
392 reg_w(dev, ET_G_GREEN1, &value, 1);
393 value = 0x80;
394 reg_w(dev, ET_G_BLUE, &value, 1);
395 value = 0x80;
396 reg_w(dev, ET_G_GREEN2, &value, 1);
397 value = 0x00;
398 reg_w(dev, ET_G_GR_H, &value, 1);
399 value = 0x00;
400 reg_w(dev, ET_G_GB_H, &value, 1); /* 0x52 */
401 /* Window control registers */
402
403 value = 0x80; /* use cmc_out */
404 reg_w(dev, 0x61, &value, 1);
405
406 value = 0x02;
407 reg_w(dev, 0x62, &value, 1);
408 value = 0x03;
409 reg_w(dev, 0x63, &value, 1);
410 value = 0x14;
411 reg_w(dev, 0x64, &value, 1);
412 value = 0x0e;
413 reg_w(dev, 0x65, &value, 1);
414 value = 0x02;
415 reg_w(dev, 0x66, &value, 1);
416 value = 0x02;
417 reg_w(dev, 0x67, &value, 1);
418
419 /**************************************/
420 value = 0x8f;
421 reg_w(dev, ET_SYNCHRO, &value, 1); /* 0x68 */
422 value = 0x69; /* 0x6a //0x69 */
423 reg_w(dev, ET_STARTX, &value, 1);
424 value = 0x0d; /* 0x0d //0x0c */
425 reg_w(dev, ET_STARTY, &value, 1);
426 value = 0x80;
427 reg_w(dev, ET_WIDTH_LOW, &value, 1);
428 value = 0xe0;
429 reg_w(dev, ET_HEIGTH_LOW, &value, 1);
430 value = 0x60;
431 reg_w(dev, ET_W_H_HEIGTH, &value, 1); /* 6d */
432 value = 0x86;
433 reg_w(dev, ET_REG6e, &value, 1);
434 value = 0x01;
435 reg_w(dev, ET_REG6f, &value, 1);
436 value = 0x26;
437 reg_w(dev, ET_REG70, &value, 1);
438 value = 0x7a;
439 reg_w(dev, ET_REG71, &value, 1);
440 value = 0x01;
441 reg_w(dev, ET_REG72, &value, 1);
442 /* Clock Pattern registers ***************** */
443 value = 0x00;
444 reg_w(dev, ET_REG73, &value, 1);
445 value = 0x18; /* 0x28 */
446 reg_w(dev, ET_REG74, &value, 1);
447 value = 0x0f; /* 0x01 */
448 reg_w(dev, ET_REG75, &value, 1);
449 /**********************************************/
450 value = 0x20;
451 reg_w(dev, 0x8a, &value, 1);
452 value = 0x0f;
453 reg_w(dev, 0x8d, &value, 1);
454 value = 0x08;
455 reg_w(dev, 0x8e, &value, 1);
456 /**************************************/
457 value = 0x08;
458 reg_w(dev, 0x03, &value, 1);
459 value = 0x03;
460 reg_w(dev, ET_PXL_CLK, &value, 1);
461 value = 0xff;
462 reg_w(dev, 0x81, &value, 1);
463 value = 0x00;
464 reg_w(dev, 0x80, &value, 1);
465 value = 0xff;
466 reg_w(dev, 0x81, &value, 1);
467 value = 0x20;
468 reg_w(dev, 0x80, &value, 1);
469 value = 0x01;
470 reg_w(dev, 0x03, &value, 1);
471 value = 0x00;
472 reg_w(dev, 0x03, &value, 1);
473 value = 0x08;
474 reg_w(dev, 0x03, &value, 1);
475 /********************************************/
476
477 /* reg_r(dev,0x0,ET_I2C_BASE,&received,1);
478 always 0x40 as the pas106 ??? */
479 /* set the sensor */
480 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].mode) {
481 value = 0x04; /* 320 */
482 reg_w(dev, ET_PXL_CLK, &value, 1);
483 /* now set by fifo the FormatLine setting */
484 reg_w(dev, 0x62, FormLine, 6);
485 } else { /* 640 */
486 /* setting PixelClock
487 0x03 mean 24/(3+1) = 6 Mhz
488 0x05 -> 24/(5+1) = 4 Mhz
489 0x0b -> 24/(11+1) = 2 Mhz
490 0x17 -> 24/(23+1) = 1 Mhz
491 */
492 value = 0x1e; /* 0x17 */
493 reg_w(dev, ET_PXL_CLK, &value, 1);
494 /* now set by fifo the FormatLine setting */
495 reg_w(dev, 0x62, FormLine, 6);
496 }
497
498 /* set exposure times [ 0..0x78] 0->longvalue 0x78->shortvalue */
499 value = 0x47; /* 0x47; */
500 reg_w(dev, 0x81, &value, 1);
501 value = 0x40; /* 0x40; */
502 reg_w(dev, 0x80, &value, 1);
503 /* Pedro change */
504 /* Brightness change Brith+ decrease value */
505 /* Brigth- increase value */
506 /* original value = 0x70; */
507 value = 0x30; /* 0x20; */
508 reg_w(dev, 0x81, &value, 1); /* set brightness */
509 value = 0x20; /* 0x20; */
510 reg_w(dev, 0x80, &value, 1);
511 }
512
513 static void setcolors(struct gspca_dev *gspca_dev)
514 {
515 struct sd *sd = (struct sd *) gspca_dev;
516 struct usb_device *dev = gspca_dev->dev;
517 static __u8 I2cc[] = { 0x05, 0x02, 0x02, 0x05, 0x0d };
518 __u8 i2cflags = 0x01;
519 /* __u8 green = 0; */
520 __u8 colors = sd->colors;
521
522 I2cc[3] = colors; /* red */
523 I2cc[0] = 15 - colors; /* blue */
524 /* green = 15 - ((((7*I2cc[0]) >> 2 ) + I2cc[3]) >> 1); */
525 /* I2cc[1] = I2cc[2] = green; */
526 if (sd->sensor == SENSOR_PAS106) {
527 Et_i2cwrite(dev, PAS106_REG13, &i2cflags, 1, 3);
528 Et_i2cwrite(dev, PAS106_REG9, I2cc, sizeof(I2cc), 1);
529 }
530 /* PDEBUG(D_CONF , "Etoms red %d blue %d green %d",
531 I2cc[3], I2cc[0], green); */
532 }
533
534 static void getcolors(struct gspca_dev *gspca_dev)
535 {
536 struct sd *sd = (struct sd *) gspca_dev;
537 /* __u8 valblue = 0; */
538 __u8 valred;
539
540 if (sd->sensor == SENSOR_PAS106) {
541 /* Et_i2cread(gspca_dev->dev,PAS106_REG9,&valblue,1,1); */
542 Et_i2cread(gspca_dev->dev, PAS106_REG9 + 3, &valred, 1, 1);
543 sd->colors = valred & 0x0f;
544 }
545 }
546
547 static void Et_init1(struct gspca_dev *gspca_dev)
548 {
549 struct usb_device *dev = gspca_dev->dev;
550 __u8 value = 0x00;
551 __u8 received = 0x00;
552 /* __u8 I2c0 [] ={0x0a,0x12,0x05,0x22,0xac,0x00,0x01,0x00}; */
553 __u8 I2c0[] = { 0x0a, 0x12, 0x05, 0x6d, 0xcd, 0x00, 0x01, 0x00 };
554 /* try 1/120 0x6d 0xcd 0x40 */
555 /* __u8 I2c0 [] ={0x0a,0x12,0x05,0xfe,0xfe,0xc0,0x01,0x00};
556 * 1/60000 hmm ?? */
557
558 PDEBUG(D_STREAM, "Open Init1 ET");
559 value = 7;
560 reg_w(dev, ET_GPIO_DIR_CTRL, &value, 1);
561 reg_r(dev, ET_GPIO_IN, &received, 1);
562 value = 1;
563 reg_w(dev, ET_RESET_ALL, &value, 1);
564 value = 0;
565 reg_w(dev, ET_RESET_ALL, &value, 1);
566 value = 0x10;
567 reg_w(dev, ET_ClCK, &value, 1);
568 value = 0x19;
569 reg_w(dev, ET_CTRL, &value, 1);
570 /* compression et subsampling */
571 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].mode)
572 value = ET_COMP_VAL1;
573 else
574 value = ET_COMP_VAL0;
575
576 PDEBUG(D_STREAM, "Open mode %d Compression %d",
577 gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].mode,
578 value);
579 reg_w(dev, ET_COMP, &value, 1);
580 value = 0x1d;
581 reg_w(dev, ET_MAXQt, &value, 1);
582 value = 0x02;
583 reg_w(dev, ET_MINQt, &value, 1);
584 /* undocumented registers */
585 value = 0xff;
586 reg_w(dev, ET_REG1d, &value, 1);
587 value = 0xff;
588 reg_w(dev, ET_REG1e, &value, 1);
589 value = 0xff;
590 reg_w(dev, ET_REG1f, &value, 1);
591 value = 0x35;
592 reg_w(dev, ET_REG20, &value, 1);
593 value = 0x01;
594 reg_w(dev, ET_REG21, &value, 1);
595 value = 0x00;
596 reg_w(dev, ET_REG22, &value, 1);
597 value = 0xf7;
598 reg_w(dev, ET_REG23, &value, 1);
599 value = 0xff;
600 reg_w(dev, ET_REG24, &value, 1);
601 value = 0x07;
602 reg_w(dev, ET_REG25, &value, 1);
603 /* colors setting */
604 value = 0x80;
605 reg_w(dev, ET_G_RED, &value, 1);
606 value = 0x80;
607 reg_w(dev, ET_G_GREEN1, &value, 1);
608 value = 0x80;
609 reg_w(dev, ET_G_BLUE, &value, 1);
610 value = 0x80;
611 reg_w(dev, ET_G_GREEN2, &value, 1);
612 value = 0x00;
613 reg_w(dev, ET_G_GR_H, &value, 1);
614 value = 0x00;
615 reg_w(dev, ET_G_GB_H, &value, 1);
616 /* Window control registers */
617 value = 0xf0;
618 reg_w(dev, ET_SYNCHRO, &value, 1);
619 value = 0x56; /* 0x56 */
620 reg_w(dev, ET_STARTX, &value, 1);
621 value = 0x05; /* 0x04 */
622 reg_w(dev, ET_STARTY, &value, 1);
623 value = 0x60;
624 reg_w(dev, ET_WIDTH_LOW, &value, 1);
625 value = 0x20;
626 reg_w(dev, ET_HEIGTH_LOW, &value, 1);
627 value = 0x50;
628 reg_w(dev, ET_W_H_HEIGTH, &value, 1);
629 value = 0x86;
630 reg_w(dev, ET_REG6e, &value, 1);
631 value = 0x01;
632 reg_w(dev, ET_REG6f, &value, 1);
633 value = 0x86;
634 reg_w(dev, ET_REG70, &value, 1);
635 value = 0x14;
636 reg_w(dev, ET_REG71, &value, 1);
637 value = 0x00;
638 reg_w(dev, ET_REG72, &value, 1);
639 /* Clock Pattern registers */
640 value = 0x00;
641 reg_w(dev, ET_REG73, &value, 1);
642 value = 0x00;
643 reg_w(dev, ET_REG74, &value, 1);
644 value = 0x0a;
645 reg_w(dev, ET_REG75, &value, 1);
646 value = 0x04;
647 reg_w(dev, ET_I2C_CLK, &value, 1);
648 value = 0x01;
649 reg_w(dev, ET_PXL_CLK, &value, 1);
650 /* set the sensor */
651 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].mode) {
652 I2c0[0] = 0x06;
653 Et_i2cwrite(dev, PAS106_REG2, I2c0, sizeof(I2c0), 1);
654 Et_i2cwrite(dev, PAS106_REG9, I2c2, sizeof(I2c2), 1);
655 value = 0x06;
656 Et_i2cwrite(dev, PAS106_REG2, &value, 1, 1);
657 Et_i2cwrite(dev, PAS106_REG3, I2c3, sizeof(I2c3), 1);
658 /* value = 0x1f; */
659 value = 0x04;
660 Et_i2cwrite(dev, PAS106_REG0e, &value, 1, 1);
661 } else {
662 I2c0[0] = 0x0a;
663
664 Et_i2cwrite(dev, PAS106_REG2, I2c0, sizeof(I2c0), 1);
665 Et_i2cwrite(dev, PAS106_REG9, I2c2, sizeof(I2c2), 1);
666 value = 0x0a;
667
668 Et_i2cwrite(dev, PAS106_REG2, &value, 1, 1);
669 Et_i2cwrite(dev, PAS106_REG3, I2c3, sizeof(I2c3), 1);
670 value = 0x04;
671 /* value = 0x10; */
672 Et_i2cwrite(dev, PAS106_REG0e, &value, 1, 1);
673 /* bit 2 enable bit 1:2 select 0 1 2 3
674 value = 0x07; * curve 0 *
675 Et_i2cwrite(dev,PAS106_REG0f,&value,1,1);
676 */
677 }
678
679 /* value = 0x01; */
680 /* value = 0x22; */
681 /* Et_i2cwrite(dev, PAS106_REG5, &value, 1, 1); */
682 /* magnetude and sign bit for DAC */
683 Et_i2cwrite(dev, PAS106_REG7, I2c4, sizeof I2c4, 1);
684 /* now set by fifo the whole colors setting */
685 reg_w(dev, ET_G_RED, GainRGBG, 6);
686 getcolors(gspca_dev);
687 setcolors(gspca_dev);
688 }
689
690 /* this function is called at probe time */
691 static int sd_config(struct gspca_dev *gspca_dev,
692 const struct usb_device_id *id)
693 {
694 struct sd *sd = (struct sd *) gspca_dev;
695 struct cam *cam;
696 __u16 vendor;
697 __u16 product;
698
699 vendor = id->idVendor;
700 product = id->idProduct;
701 /* switch (vendor) { */
702 /* case 0x102c: * Etoms */
703 switch (product) {
704 case 0x6151:
705 sd->sensor = SENSOR_PAS106; /* Etoms61x151 */
706 break;
707 case 0x6251:
708 sd->sensor = SENSOR_TAS5130CXX; /* Etoms61x251 */
709 break;
710 /* } */
711 /* break; */
712 }
713 cam = &gspca_dev->cam;
714 cam->dev_name = (char *) id->driver_info;
715 cam->epaddr = 1;
716 if (sd->sensor == SENSOR_PAS106) {
717 cam->cam_mode = sif_mode;
718 cam->nmodes = sizeof sif_mode / sizeof sif_mode[0];
719 } else {
720 cam->cam_mode = vga_mode;
721 cam->nmodes = sizeof vga_mode / sizeof vga_mode[0];
722 }
723 sd->brightness = sd_ctrls[SD_BRIGHTNESS].qctrl.default_value;
724 sd->contrast = sd_ctrls[SD_CONTRAST].qctrl.default_value;
725 sd->colors = sd_ctrls[SD_COLOR].qctrl.default_value;
726 sd->autogain = sd_ctrls[SD_AUTOGAIN].qctrl.default_value;
727 return 0;
728 }
729
730 /* this function is called at open time */
731 static int sd_open(struct gspca_dev *gspca_dev)
732 {
733 struct sd *sd = (struct sd *) gspca_dev;
734 struct usb_device *dev = gspca_dev->dev;
735 int err;
736 __u8 value;
737
738 PDEBUG(D_STREAM, "Initialize ET1");
739 if (sd->sensor == SENSOR_PAS106)
740 Et_init1(gspca_dev);
741 else
742 Et_init2(gspca_dev);
743 value = 0x08;
744 reg_w(dev, ET_RESET_ALL, &value, 1);
745 err = Et_videoOff(dev);
746 PDEBUG(D_STREAM, "Et_Init_VideoOff %d", err);
747 return 0;
748 }
749
750 /* -- start the camera -- */
751 static void sd_start(struct gspca_dev *gspca_dev)
752 {
753 struct sd *sd = (struct sd *) gspca_dev;
754 struct usb_device *dev = gspca_dev->dev;
755 int err;
756 __u8 value;
757
758 if (sd->sensor == SENSOR_PAS106)
759 Et_init1(gspca_dev);
760 else
761 Et_init2(gspca_dev);
762
763 value = 0x08;
764 reg_w(dev, ET_RESET_ALL, &value, 1);
765 err = Et_videoOn(dev);
766 PDEBUG(D_STREAM, "Et_VideoOn %d", err);
767 }
768
769 static void sd_stopN(struct gspca_dev *gspca_dev)
770 {
771 int err;
772
773 err = Et_videoOff(gspca_dev->dev);
774 PDEBUG(D_STREAM, "Et_VideoOff %d", err);
775
776 }
777
778 static void sd_stop0(struct gspca_dev *gspca_dev)
779 {
780 }
781
782 static void sd_close(struct gspca_dev *gspca_dev)
783 {
784 }
785
786 static void setbrightness(struct gspca_dev *gspca_dev)
787 {
788 struct sd *sd = (struct sd *) gspca_dev;
789 int i;
790 __u8 brightness = sd->brightness;
791
792 for (i = 0; i < 4; i++)
793 reg_w(gspca_dev->dev, (ET_O_RED + i), &brightness, 1);
794 }
795
796 static void getbrightness(struct gspca_dev *gspca_dev)
797 {
798 struct sd *sd = (struct sd *) gspca_dev;
799 int i;
800 int brightness = 0;
801 __u8 value = 0;
802
803 for (i = 0; i < 4; i++) {
804 reg_r(gspca_dev->dev, (ET_O_RED + i), &value, 1);
805 brightness += value;
806 }
807 sd->brightness = brightness >> 3;
808 }
809
810 static void setcontrast(struct gspca_dev *gspca_dev)
811 {
812 struct sd *sd = (struct sd *) gspca_dev;
813 __u8 RGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
814 __u8 contrast = sd->contrast;
815
816 memset(RGBG, contrast, sizeof RGBG - 2);
817 reg_w(gspca_dev->dev, ET_G_RED, RGBG, 6);
818 }
819
820 static void getcontrast(struct gspca_dev *gspca_dev)
821 {
822 struct sd *sd = (struct sd *) gspca_dev;
823 int i;
824 int contrast = 0;
825 __u8 value = 0;
826
827 for (i = 0; i < 4; i++) {
828 reg_r(gspca_dev->dev, (ET_G_RED + i), &value, 1);
829 contrast += value;
830 }
831 sd->contrast = contrast >> 2;
832 }
833
834 static __u8 Et_getgainG(struct gspca_dev *gspca_dev)
835 {
836 struct sd *sd = (struct sd *) gspca_dev;
837 __u8 value = 0;
838
839 if (sd->sensor == SENSOR_PAS106) {
840 Et_i2cread(gspca_dev->dev, PAS106_REG0e, &value, 1, 1);
841 PDEBUG(D_CONF, "Etoms gain G %d", value);
842 return value;
843 }
844 return 0x1f;
845 }
846
847 static void Et_setgainG(struct gspca_dev *gspca_dev, __u8 gain)
848 {
849 struct sd *sd = (struct sd *) gspca_dev;
850 struct usb_device *dev = gspca_dev->dev;
851 __u8 i2cflags = 0x01;
852
853 if (sd->sensor == SENSOR_PAS106) {
854 Et_i2cwrite(dev, PAS106_REG13, &i2cflags, 1, 3);
855 Et_i2cwrite(dev, PAS106_REG0e, &gain, 1, 1);
856 }
857 }
858
859 #define BLIMIT(bright) \
860 (__u8)((bright > 0x1f)?0x1f:((bright < 4)?3:bright))
861 #define LIMIT(color) \
862 (unsigned char)((color > 0xff)?0xff:((color < 0)?0:color))
863
864 static void setautogain(struct gspca_dev *gspca_dev)
865 {
866 struct usb_device *dev = gspca_dev->dev;
867 __u8 GRBG[] = { 0, 0, 0, 0 };
868 __u8 luma = 0;
869 __u8 luma_mean = 128;
870 __u8 luma_delta = 20;
871 __u8 spring = 4;
872 int Gbright = 0;
873 __u8 r, g, b;
874
875 Gbright = Et_getgainG(gspca_dev);
876 reg_r(dev, ET_LUMA_CENTER, GRBG, 4);
877 g = (GRBG[0] + GRBG[3]) >> 1;
878 r = GRBG[1];
879 b = GRBG[2];
880 r = ((r << 8) - (r << 4) - (r << 3)) >> 10;
881 b = ((b << 7) >> 10);
882 g = ((g << 9) + (g << 7) + (g << 5)) >> 10;
883 luma = LIMIT(r + g + b);
884 PDEBUG(D_FRAM, "Etoms luma G %d", luma);
885 if (luma < luma_mean - luma_delta || luma > luma_mean + luma_delta) {
886 Gbright += (luma_mean - luma) >> spring;
887 Gbright = BLIMIT(Gbright);
888 PDEBUG(D_FRAM, "Etoms Gbright %d", Gbright);
889 Et_setgainG(gspca_dev, (__u8) Gbright);
890 }
891 }
892
893 #undef BLIMIT
894 #undef LIMIT
895
896 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
897 struct gspca_frame *frame, /* target */
898 unsigned char *data, /* isoc packet */
899 int len) /* iso packet length */
900 {
901 struct sd *sd;
902 int seqframe;
903
904 seqframe = data[0] & 0x3f;
905 len = (int) (((data[0] & 0xc0) << 2) | data[1]);
906 if (seqframe == 0x3f) {
907 PDEBUG(D_FRAM,
908 "header packet found datalength %d !!", len);
909 PDEBUG(D_FRAM, "G %d R %d G %d B %d",
910 data[2], data[3], data[4], data[5]);
911 data += 30;
912 /* don't change datalength as the chips provided it */
913 frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
914 data, 0);
915 gspca_frame_add(gspca_dev, FIRST_PACKET, frame, data, len);
916 sd = (struct sd *) gspca_dev;
917 if (sd->ag_cnt >= 0) {
918 if (--sd->ag_cnt < 0) {
919 sd->ag_cnt = AG_CNT_START;
920 setautogain(gspca_dev);
921 }
922 }
923 return;
924 }
925 if (len) {
926 data += 8;
927 gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
928 } else { /* Drop Packet */
929 gspca_dev->last_packet_type = DISCARD_PACKET;
930 }
931 }
932
933 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
934 {
935 struct sd *sd = (struct sd *) gspca_dev;
936
937 sd->brightness = val;
938 if (gspca_dev->streaming)
939 setbrightness(gspca_dev);
940 return 0;
941 }
942
943 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
944 {
945 struct sd *sd = (struct sd *) gspca_dev;
946
947 getbrightness(gspca_dev);
948 *val = sd->brightness;
949 return 0;
950 }
951
952 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
953 {
954 struct sd *sd = (struct sd *) gspca_dev;
955
956 sd->contrast = val;
957 if (gspca_dev->streaming)
958 setcontrast(gspca_dev);
959 return 0;
960 }
961
962 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
963 {
964 struct sd *sd = (struct sd *) gspca_dev;
965
966 getcontrast(gspca_dev);
967 *val = sd->contrast;
968 return 0;
969 }
970
971 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
972 {
973 struct sd *sd = (struct sd *) gspca_dev;
974
975 sd->colors = val;
976 if (gspca_dev->streaming)
977 setcolors(gspca_dev);
978 return 0;
979 }
980
981 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
982 {
983 struct sd *sd = (struct sd *) gspca_dev;
984
985 getcolors(gspca_dev);
986 *val = sd->colors;
987 return 0;
988 }
989
990 static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
991 {
992 struct sd *sd = (struct sd *) gspca_dev;
993
994 sd->autogain = val;
995 if (val)
996 sd->ag_cnt = AG_CNT_START;
997 else
998 sd->ag_cnt = -1;
999 return 0;
1000 }
1001
1002 static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val)
1003 {
1004 struct sd *sd = (struct sd *) gspca_dev;
1005
1006 *val = sd->autogain;
1007 return 0;
1008 }
1009
1010 /* sub-driver description */
1011 static struct sd_desc sd_desc = {
1012 .name = MODULE_NAME,
1013 .ctrls = sd_ctrls,
1014 .nctrls = ARRAY_SIZE(sd_ctrls),
1015 .config = sd_config,
1016 .open = sd_open,
1017 .start = sd_start,
1018 .stopN = sd_stopN,
1019 .stop0 = sd_stop0,
1020 .close = sd_close,
1021 .pkt_scan = sd_pkt_scan,
1022 };
1023
1024 /* -- module initialisation -- */
1025 #define DVNM(name) .driver_info = (kernel_ulong_t) name
1026 static __devinitdata struct usb_device_id device_table[] = {
1027 {USB_DEVICE(0x102c, 0x6151), DVNM("Qcam Sangha CIF")},
1028 {USB_DEVICE(0x102c, 0x6251), DVNM("Qcam xxxxxx VGA")},
1029 {}
1030 };
1031
1032 MODULE_DEVICE_TABLE(usb, device_table);
1033
1034 /* -- device connect -- */
1035 static int sd_probe(struct usb_interface *intf,
1036 const struct usb_device_id *id)
1037 {
1038 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
1039 THIS_MODULE);
1040 }
1041
1042 static struct usb_driver sd_driver = {
1043 .name = MODULE_NAME,
1044 .id_table = device_table,
1045 .probe = sd_probe,
1046 .disconnect = gspca_disconnect,
1047 };
1048
1049 /* -- module insert / remove -- */
1050 static int __init sd_mod_init(void)
1051 {
1052 if (usb_register(&sd_driver) < 0)
1053 return -1;
1054 PDEBUG(D_PROBE, "v%s registered", version);
1055 return 0;
1056 }
1057
1058 static void __exit sd_mod_exit(void)
1059 {
1060 usb_deregister(&sd_driver);
1061 PDEBUG(D_PROBE, "deregistered");
1062 }
1063
1064 module_init(sd_mod_init);
1065 module_exit(sd_mod_exit);
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