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V4L/DVB (8201): gspca: v4l2_pix_format in each subdriver.
[linux-2.6/btrfs-unstable.git] / drivers / media / video / gspca / tv8532.c
blobf9bffd67991eb37f1751ed3d4c8a88e332a2cac7
1 /*
2 * Quickcam cameras initialization data
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 "tv8532"
22
23 #include "gspca.h"
24
25 #define DRIVER_VERSION_NUMBER KERNEL_VERSION(2, 1, 5)
26 static const char version[] = "2.1.5";
27
28 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
29 MODULE_DESCRIPTION("TV8532 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 int buflen; /* current length of tmpbuf */
37 __u8 tmpbuf[352 * 288 + 10 * 288]; /* no protection... */
38 __u8 tmpbuf2[352 * 288]; /* no protection... */
39
40 unsigned short brightness;
41 unsigned short contrast;
42
43 char packet;
44 char synchro;
45 };
46
47 /* V4L2 controls supported by the driver */
48 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
49 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
50 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
51 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
52
53 static struct ctrl sd_ctrls[] = {
54 #define SD_BRIGHTNESS 0
55 {
56 {
57 .id = V4L2_CID_BRIGHTNESS,
58 .type = V4L2_CTRL_TYPE_INTEGER,
59 .name = "Brightness",
60 .minimum = 1,
61 .maximum = 0x2ff,
62 .step = 1,
63 .default_value = 0x18f,
64 },
65 .set = sd_setbrightness,
66 .get = sd_getbrightness,
67 },
68 #define SD_CONTRAST 1
69 {
70 {
71 .id = V4L2_CID_CONTRAST,
72 .type = V4L2_CTRL_TYPE_INTEGER,
73 .name = "Contrast",
74 .minimum = 0,
75 .maximum = 0xffff,
76 .step = 1,
77 .default_value = 0x7fff,
78 },
79 .set = sd_setcontrast,
80 .get = sd_getcontrast,
81 },
82 };
83
84 static struct v4l2_pix_format sif_mode[] = {
85 {176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
86 .bytesperline = 176,
87 .sizeimage = 176 * 144,
88 .colorspace = V4L2_COLORSPACE_SRGB,
89 .priv = 1},
90 {352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
91 .bytesperline = 352,
92 .sizeimage = 352 * 288,
93 .colorspace = V4L2_COLORSPACE_SRGB,
94 .priv = 0},
95 };
96
97 /*
98 * Initialization data: this is the first set-up data written to the
99 * device (before the open data).
100 */
101 #define TESTCLK 0x10 /* reg 0x2c -> 0x12 //10 */
102 #define TESTCOMP 0x90 /* reg 0x28 -> 0x80 */
103 #define TESTLINE 0x81 /* reg 0x29 -> 0x81 */
104 #define QCIFLINE 0x41 /* reg 0x29 -> 0x81 */
105 #define TESTPTL 0x14 /* reg 0x2D -> 0x14 */
106 #define TESTPTH 0x01 /* reg 0x2E -> 0x01 */
107 #define TESTPTBL 0x12 /* reg 0x2F -> 0x0a */
108 #define TESTPTBH 0x01 /* reg 0x30 -> 0x01 */
109 #define ADWIDTHL 0xe8 /* reg 0x0c -> 0xe8 */
110 #define ADWIDTHH 0x03 /* reg 0x0d -> 0x03 */
111 #define ADHEIGHL 0x90 /* reg 0x0e -> 0x91 //93 */
112 #define ADHEIGHH 0x01 /* reg 0x0f -> 0x01 */
113 #define EXPOL 0x8f /* reg 0x1c -> 0x8f */
114 #define EXPOH 0x01 /* reg 0x1d -> 0x01 */
115 #define ADCBEGINL 0x44 /* reg 0x10 -> 0x46 //47 */
116 #define ADCBEGINH 0x00 /* reg 0x11 -> 0x00 */
117 #define ADRBEGINL 0x0a /* reg 0x14 -> 0x0b //0x0c */
118 #define ADRBEGINH 0x00 /* reg 0x15 -> 0x00 */
119 #define TV8532_CMD_UPDATE 0x84
120
121 #define TV8532_EEprom_Add 0x03
122 #define TV8532_EEprom_DataL 0x04
123 #define TV8532_EEprom_DataM 0x05
124 #define TV8532_EEprom_DataH 0x06
125 #define TV8532_EEprom_TableLength 0x07
126 #define TV8532_EEprom_Write 0x08
127 #define TV8532_PART_CTRL 0x00
128 #define TV8532_CTRL 0x01
129 #define TV8532_CMD_EEprom_Open 0x30
130 #define TV8532_CMD_EEprom_Close 0x29
131 #define TV8532_UDP_UPDATE 0x31
132 #define TV8532_GPIO 0x39
133 #define TV8532_GPIO_OE 0x3B
134 #define TV8532_REQ_RegWrite 0x02
135 #define TV8532_REQ_RegRead 0x03
136
137 #define TV8532_ADWIDTH_L 0x0C
138 #define TV8532_ADWIDTH_H 0x0D
139 #define TV8532_ADHEIGHT_L 0x0E
140 #define TV8532_ADHEIGHT_H 0x0F
141 #define TV8532_EXPOSURE 0x1C
142 #define TV8532_QUANT_COMP 0x28
143 #define TV8532_MODE_PACKET 0x29
144 #define TV8532_SETCLK 0x2C
145 #define TV8532_POINT_L 0x2D
146 #define TV8532_POINT_H 0x2E
147 #define TV8532_POINTB_L 0x2F
148 #define TV8532_POINTB_H 0x30
149 #define TV8532_BUDGET_L 0x2A
150 #define TV8532_BUDGET_H 0x2B
151 #define TV8532_VID_L 0x34
152 #define TV8532_VID_H 0x35
153 #define TV8532_PID_L 0x36
154 #define TV8532_PID_H 0x37
155 #define TV8532_DeviceID 0x83
156 #define TV8532_AD_SLOPE 0x91
157 #define TV8532_AD_BITCTRL 0x94
158 #define TV8532_AD_COLBEGIN_L 0x10
159 #define TV8532_AD_COLBEGIN_H 0x11
160 #define TV8532_AD_ROWBEGIN_L 0x14
161 #define TV8532_AD_ROWBEGIN_H 0x15
162
163 static const __u32 tv_8532_eeprom_data[] = {
164 /* add dataL dataM dataH */
165 0x00010001, 0x01018011, 0x02050014, 0x0305001c,
166 0x040d001e, 0x0505001f, 0x06050519, 0x0705011b,
167 0x0805091e, 0x090d892e, 0x0a05892f, 0x0b050dd9,
168 0x0c0509f1, 0
169 };
170
171 static void reg_r(struct usb_device *dev,
172 __u16 index, __u8 *buffer)
173 {
174 usb_control_msg(dev,
175 usb_rcvctrlpipe(dev, 0),
176 TV8532_REQ_RegRead,
177 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
178 0, /* value */
179 index, buffer, sizeof(__u8),
180 500);
181 }
182
183 static void reg_w(struct usb_device *dev,
184 __u16 index, __u8 *buffer, __u16 length)
185 {
186 usb_control_msg(dev,
187 usb_sndctrlpipe(dev, 0),
188 TV8532_REQ_RegWrite,
189 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
190 0, /* value */
191 index, buffer, length, 500);
192 }
193
194 static void tv_8532WriteEEprom(struct gspca_dev *gspca_dev)
195 {
196 int i = 0;
197 __u8 reg, data0, data1, data2, datacmd;
198 struct usb_device *dev = gspca_dev->dev;
199
200 datacmd = 0xb0;;
201 reg_w(dev, TV8532_GPIO, &datacmd, 1);
202 datacmd = TV8532_CMD_EEprom_Open;
203 reg_w(dev, TV8532_CTRL, &datacmd, 1);
204 /* msleep(1); */
205 while (tv_8532_eeprom_data[i]) {
206 reg = (tv_8532_eeprom_data[i] & 0xff000000) >> 24;
207 reg_w(dev, TV8532_EEprom_Add, &reg, 1);
208 /* msleep(1); */
209 data0 = (tv_8532_eeprom_data[i] & 0x000000ff);
210 reg_w(dev, TV8532_EEprom_DataL, &data0, 1);
211 /* msleep(1); */
212 data1 = (tv_8532_eeprom_data[i] & 0x0000FF00) >> 8;
213 reg_w(dev, TV8532_EEprom_DataM, &data1, 1);
214 /* msleep(1); */
215 data2 = (tv_8532_eeprom_data[i] & 0x00FF0000) >> 16;
216 reg_w(dev, TV8532_EEprom_DataH, &data2, 1);
217 /* msleep(1); */
218 datacmd = 0;
219 reg_w(dev, TV8532_EEprom_Write, &datacmd, 1);
220 /* msleep(10); */
221 i++;
222 }
223 datacmd = i;
224 reg_w(dev, TV8532_EEprom_TableLength, &datacmd, 1);
225 /* msleep(1); */
226 datacmd = TV8532_CMD_EEprom_Close;
227 reg_w(dev, TV8532_CTRL, &datacmd, 1);
228 msleep(10);
229 }
230
231 /* this function is called at probe time */
232 static int sd_config(struct gspca_dev *gspca_dev,
233 const struct usb_device_id *id)
234 {
235 struct sd *sd = (struct sd *) gspca_dev;
236 struct cam *cam;
237
238 tv_8532WriteEEprom(gspca_dev);
239
240 cam = &gspca_dev->cam;
241 cam->dev_name = (char *) id->driver_info;
242 cam->epaddr = 1;
243 cam->cam_mode = sif_mode;
244 cam->nmodes = sizeof sif_mode / sizeof sif_mode[0];
245
246 sd->brightness = sd_ctrls[SD_BRIGHTNESS].qctrl.default_value;
247 sd->contrast = sd_ctrls[SD_CONTRAST].qctrl.default_value;
248 return 0;
249 }
250
251 static void tv_8532ReadRegisters(struct gspca_dev *gspca_dev)
252 {
253 struct usb_device *dev = gspca_dev->dev;
254 __u8 data;
255 /* __u16 vid, pid; */
256
257 reg_r(dev, 0x0001, &data);
258 PDEBUG(D_USBI, "register 0x01-> %x", data);
259 reg_r(dev, 0x0002, &data);
260 PDEBUG(D_USBI, "register 0x02-> %x", data);
261 reg_r(dev, TV8532_ADWIDTH_L, &data);
262 reg_r(dev, TV8532_ADWIDTH_H, &data);
263 reg_r(dev, TV8532_QUANT_COMP, &data);
264 reg_r(dev, TV8532_MODE_PACKET, &data);
265 reg_r(dev, TV8532_SETCLK, &data);
266 reg_r(dev, TV8532_POINT_L, &data);
267 reg_r(dev, TV8532_POINT_H, &data);
268 reg_r(dev, TV8532_POINTB_L, &data);
269 reg_r(dev, TV8532_POINTB_H, &data);
270 reg_r(dev, TV8532_BUDGET_L, &data);
271 reg_r(dev, TV8532_BUDGET_H, &data);
272 reg_r(dev, TV8532_VID_L, &data);
273 reg_r(dev, TV8532_VID_H, &data);
274 reg_r(dev, TV8532_PID_L, &data);
275 reg_r(dev, TV8532_PID_H, &data);
276 reg_r(dev, TV8532_DeviceID, &data);
277 reg_r(dev, TV8532_AD_COLBEGIN_L, &data);
278 reg_r(dev, TV8532_AD_COLBEGIN_H, &data);
279 reg_r(dev, TV8532_AD_ROWBEGIN_L, &data);
280 reg_r(dev, TV8532_AD_ROWBEGIN_H, &data);
281 }
282
283 static void tv_8532_setReg(struct gspca_dev *gspca_dev)
284 {
285 struct usb_device *dev = gspca_dev->dev;
286 __u8 data;
287 __u8 value[2] = { 0, 0 };
288
289 data = ADCBEGINL;
290 reg_w(dev, TV8532_AD_COLBEGIN_L, &data, 1); /* 0x10 */
291 data = ADCBEGINH; /* also digital gain */
292 reg_w(dev, TV8532_AD_COLBEGIN_H, &data, 1);
293 data = TV8532_CMD_UPDATE;
294 reg_w(dev, TV8532_PART_CTRL, &data, 1); /* 0x00<-0x84 */
295
296 data = 0x0a;
297 reg_w(dev, TV8532_GPIO_OE, &data, 1);
298 /******************************************************/
299 data = ADHEIGHL;
300 reg_w(dev, TV8532_ADHEIGHT_L, &data, 1); /* 0e */
301 data = ADHEIGHH;
302 reg_w(dev, TV8532_ADHEIGHT_H, &data, 1); /* 0f */
303 value[0] = EXPOL;
304 value[1] = EXPOH; /* 350d 0x014c; */
305 reg_w(dev, TV8532_EXPOSURE, value, 2); /* 1c */
306 data = ADCBEGINL;
307 reg_w(dev, TV8532_AD_COLBEGIN_L, &data, 1); /* 0x10 */
308 data = ADCBEGINH; /* also digital gain */
309 reg_w(dev, TV8532_AD_COLBEGIN_H, &data, 1);
310 data = ADRBEGINL;
311 reg_w(dev, TV8532_AD_ROWBEGIN_L, &data, 1); /* 0x14 */
312
313 data = 0x00;
314 reg_w(dev, TV8532_AD_SLOPE, &data, 1); /* 0x91 */
315 data = 0x02;
316 reg_w(dev, TV8532_AD_BITCTRL, &data, 1); /* 0x94 */
317
318
319 data = TV8532_CMD_EEprom_Close;
320 reg_w(dev, TV8532_CTRL, &data, 1); /* 0x01 */
321
322 data = 0x00;
323 reg_w(dev, TV8532_AD_SLOPE, &data, 1); /* 0x91 */
324 data = TV8532_CMD_UPDATE;
325 reg_w(dev, TV8532_PART_CTRL, &data, 1); /* 0x00<-0x84 */
326 }
327
328 static void tv_8532_PollReg(struct gspca_dev *gspca_dev)
329 {
330 struct usb_device *dev = gspca_dev->dev;
331 __u8 data;
332 int i;
333
334 /* strange polling from tgc */
335 for (i = 0; i < 10; i++) {
336 data = TESTCLK; /* 0x48; //0x08; */
337 reg_w(dev, TV8532_SETCLK, &data, 1); /* 0x2c */
338 data = TV8532_CMD_UPDATE;
339 reg_w(dev, TV8532_PART_CTRL, &data, 1);
340 data = 0x01;
341 reg_w(dev, TV8532_UDP_UPDATE, &data, 1); /* 0x31 */
342 }
343 }
344
345 /* this function is called at open time */
346 static int sd_open(struct gspca_dev *gspca_dev)
347 {
348 struct usb_device *dev = gspca_dev->dev;
349 __u8 data;
350 __u8 dataStart;
351 __u8 value[2];
352
353 data = 0x32;
354 reg_w(dev, TV8532_AD_SLOPE, &data, 1);
355 data = 0;
356 reg_w(dev, TV8532_AD_BITCTRL, &data, 1);
357 tv_8532ReadRegisters(gspca_dev);
358 data = 0x0b;
359 reg_w(dev, TV8532_GPIO_OE, &data, 1);
360 value[0] = ADHEIGHL;
361 value[1] = ADHEIGHH; /* 401d 0x0169; */
362 reg_w(dev, TV8532_ADHEIGHT_L, value, 2); /* 0e */
363 value[0] = EXPOL;
364 value[1] = EXPOH; /* 350d 0x014c; */
365 reg_w(dev, TV8532_EXPOSURE, value, 2); /* 1c */
366 data = ADWIDTHL; /* 0x20; */
367 reg_w(dev, TV8532_ADWIDTH_L, &data, 1); /* 0x0c */
368 data = ADWIDTHH;
369 reg_w(dev, TV8532_ADWIDTH_H, &data, 1); /* 0x0d */
370
371 /*******************************************************************/
372 data = TESTCOMP; /* 0x72 compressed mode */
373 reg_w(dev, TV8532_QUANT_COMP, &data, 1); /* 0x28 */
374 data = TESTLINE; /* 0x84; // CIF | 4 packet */
375 reg_w(dev, TV8532_MODE_PACKET, &data, 1); /* 0x29 */
376
377 /************************************************/
378 data = TESTCLK; /* 0x48; //0x08; */
379 reg_w(dev, TV8532_SETCLK, &data, 1); /* 0x2c */
380 data = TESTPTL; /* 0x38; */
381 reg_w(dev, TV8532_POINT_L, &data, 1); /* 0x2d */
382 data = TESTPTH; /* 0x04; */
383 reg_w(dev, TV8532_POINT_H, &data, 1); /* 0x2e */
384 dataStart = TESTPTBL; /* 0x04; */
385 reg_w(dev, TV8532_POINTB_L, &dataStart, 1); /* 0x2f */
386 data = TESTPTBH; /* 0x04; */
387 reg_w(dev, TV8532_POINTB_H, &data, 1); /* 0x30 */
388 data = TV8532_CMD_UPDATE;
389 reg_w(dev, TV8532_PART_CTRL, &data, 1); /* 0x00<-0x84 */
390 /*************************************************/
391 data = 0x01;
392 reg_w(dev, TV8532_UDP_UPDATE, &data, 1); /* 0x31 */
393 msleep(200);
394 data = 0x00;
395 reg_w(dev, TV8532_UDP_UPDATE, &data, 1); /* 0x31 */
396 /*************************************************/
397 tv_8532_setReg(gspca_dev);
398 /*************************************************/
399 data = 0x0b;
400 reg_w(dev, TV8532_GPIO_OE, &data, 1);
401 /*************************************************/
402 tv_8532_setReg(gspca_dev);
403 /*************************************************/
404 tv_8532_PollReg(gspca_dev);
405 return 0;
406 }
407
408 static void setbrightness(struct gspca_dev *gspca_dev)
409 {
410 struct sd *sd = (struct sd *) gspca_dev;
411 __u8 value[2];
412 __u8 data;
413 int brightness = sd->brightness;
414
415 value[1] = (brightness >> 8) & 0xff;
416 value[0] = (brightness) & 0xff;
417 reg_w(gspca_dev->dev, TV8532_EXPOSURE, value, 2); /* 1c */
418 data = TV8532_CMD_UPDATE;
419 reg_w(gspca_dev->dev, TV8532_PART_CTRL, &data, 1);
420 }
421
422 /* -- start the camera -- */
423 static void sd_start(struct gspca_dev *gspca_dev)
424 {
425 struct usb_device *dev = gspca_dev->dev;
426 __u8 data;
427 __u8 value[2];
428
429 data = 0x32;
430 reg_w(dev, TV8532_AD_SLOPE, &data, 1);
431 data = 0;
432 reg_w(dev, TV8532_AD_BITCTRL, &data, 1);
433 tv_8532ReadRegisters(gspca_dev);
434 data = 0x0b;
435 reg_w(dev, TV8532_GPIO_OE, &data, 1);
436 value[0] = ADHEIGHL;
437 value[1] = ADHEIGHH; /* 401d 0x0169; */
438 reg_w(dev, TV8532_ADHEIGHT_L, value, 2); /* 0e */
439 /* value[0] = EXPOL; value[1] =EXPOH; * 350d 0x014c; */
440 /* reg_w(dev,TV8532_REQ_RegWrite,0,TV8532_EXPOSURE,value,2); * 1c */
441 setbrightness(gspca_dev);
442
443 data = ADWIDTHL; /* 0x20; */
444 reg_w(dev, TV8532_ADWIDTH_L, &data, 1); /* 0x0c */
445 data = ADWIDTHH;
446 reg_w(dev, TV8532_ADWIDTH_H, &data, 1); /* 0x0d */
447
448 /************************************************/
449 data = TESTCOMP; /* 0x72 compressed mode */
450 reg_w(dev, TV8532_QUANT_COMP, &data, 1); /* 0x28 */
451 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
452 /* 176x144 */
453 data = QCIFLINE; /* 0x84; // CIF | 4 packet */
454 reg_w(dev, TV8532_MODE_PACKET, &data, 1); /* 0x29 */
455 } else {
456 /* 352x288 */
457 data = TESTLINE; /* 0x84; // CIF | 4 packet */
458 reg_w(dev, TV8532_MODE_PACKET, &data, 1); /* 0x29 */
459 }
460 /************************************************/
461 data = TESTCLK; /* 0x48; //0x08; */
462 reg_w(dev, TV8532_SETCLK, &data, 1); /* 0x2c */
463 data = TESTPTL; /* 0x38; */
464 reg_w(dev, TV8532_POINT_L, &data, 1); /* 0x2d */
465 data = TESTPTH; /* 0x04; */
466 reg_w(dev, TV8532_POINT_H, &data, 1); /* 0x2e */
467 data = TESTPTBL; /* 0x04; */
468 reg_w(dev, TV8532_POINTB_L, &data, 1); /* 0x2f */
469 data = TESTPTBH; /* 0x04; */
470 reg_w(dev, TV8532_POINTB_H, &data, 1); /* 0x30 */
471 data = TV8532_CMD_UPDATE;
472 reg_w(dev, TV8532_PART_CTRL, &data, 1); /* 0x00<-0x84 */
473 /************************************************/
474 data = 0x01;
475 reg_w(dev, TV8532_UDP_UPDATE, &data, 1); /* 0x31 */
476 msleep(200);
477 data = 0x00;
478 reg_w(dev, TV8532_UDP_UPDATE, &data, 1); /* 0x31 */
479 /************************************************/
480 tv_8532_setReg(gspca_dev);
481 /************************************************/
482 data = 0x0b;
483 reg_w(dev, TV8532_GPIO_OE, &data, 1);
484 /************************************************/
485 tv_8532_setReg(gspca_dev);
486 /************************************************/
487 tv_8532_PollReg(gspca_dev);
488 data = 0x00;
489 reg_w(dev, TV8532_UDP_UPDATE, &data, 1); /* 0x31 */
490 }
491
492 static void sd_stopN(struct gspca_dev *gspca_dev)
493 {
494 struct usb_device *dev = gspca_dev->dev;
495 __u8 data;
496
497 data = 0x0b;
498 reg_w(dev, TV8532_GPIO_OE, &data, 1);
499 }
500
501 static void sd_stop0(struct gspca_dev *gspca_dev)
502 {
503 }
504
505 static void sd_close(struct gspca_dev *gspca_dev)
506 {
507 }
508
509 static void tv8532_preprocess(struct gspca_dev *gspca_dev)
510 {
511 struct sd *sd = (struct sd *) gspca_dev;
512 /* we should received a whole frame with header and EOL marker
513 * in gspca_dev->tmpbuf and return a GBRG pattern in gspca_dev->tmpbuf2
514 * sequence 2bytes header the Alternate pixels bayer GB 4 bytes
515 * Alternate pixels bayer RG 4 bytes EOL */
516 int width = gspca_dev->width;
517 int height = gspca_dev->height;
518 unsigned char *dst = sd->tmpbuf2;
519 unsigned char *data = sd->tmpbuf;
520 int i;
521
522 /* precompute where is the good bayer line */
523 if (((data[3] + data[width + 7]) >> 1)
524 + (data[4] >> 2)
525 + (data[width + 6] >> 1) >= ((data[2] + data[width + 6]) >> 1)
526 + (data[3] >> 2)
527 + (data[width + 5] >> 1))
528 data += 3;
529 else
530 data += 2;
531 for (i = 0; i < height / 2; i++) {
532 memcpy(dst, data, width);
533 data += width + 3;
534 dst += width;
535 memcpy(dst, data, width);
536 data += width + 7;
537 dst += width;
538 }
539 }
540
541 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
542 struct gspca_frame *frame, /* target */
543 __u8 *data, /* isoc packet */
544 int len) /* iso packet length */
545 {
546 struct sd *sd = (struct sd *) gspca_dev;
547
548 if (data[0] != 0x80) {
549 sd->packet++;
550 if (sd->buflen + len > sizeof sd->tmpbuf) {
551 if (gspca_dev->last_packet_type != DISCARD_PACKET) {
552 PDEBUG(D_PACK, "buffer overflow");
553 gspca_dev->last_packet_type = DISCARD_PACKET;
554 }
555 return;
556 }
557 memcpy(&sd->tmpbuf[sd->buflen], data, len);
558 sd->buflen += len;
559 return;
560 }
561
562 /* here we detect 0x80 */
563 /* counter is limited so we need few header for a frame :) */
564
565 /* header 0x80 0x80 0x80 0x80 0x80 */
566 /* packet 00 63 127 145 00 */
567 /* sof 0 1 1 0 0 */
568
569 /* update sequence */
570 if (sd->packet == 63 || sd->packet == 127)
571 sd->synchro = 1;
572
573 /* is there a frame start ? */
574 if (sd->packet >= (gspca_dev->height >> 1) - 1) {
575 PDEBUG(D_PACK, "SOF > %d packet %d", sd->synchro,
576 sd->packet);
577 if (!sd->synchro) { /* start of frame */
578 if (gspca_dev->last_packet_type == FIRST_PACKET) {
579 tv8532_preprocess(gspca_dev);
580 frame = gspca_frame_add(gspca_dev,
581 LAST_PACKET,
582 frame, sd->tmpbuf2,
583 gspca_dev->width *
584 gspca_dev->width);
585 }
586 gspca_frame_add(gspca_dev, FIRST_PACKET,
587 frame, data, 0);
588 memcpy(sd->tmpbuf, data, len);
589 sd->buflen = len;
590 sd->packet = 0;
591 return;
592 }
593 if (gspca_dev->last_packet_type != DISCARD_PACKET) {
594 PDEBUG(D_PACK,
595 "Warning wrong TV8532 frame detection %d",
596 sd->packet);
597 gspca_dev->last_packet_type = DISCARD_PACKET;
598 }
599 return;
600 }
601
602 if (!sd->synchro) {
603 /* Drop packet frame corrupt */
604 PDEBUG(D_PACK, "DROP SOF %d packet %d",
605 sd->synchro, sd->packet);
606 sd->packet = 0;
607 gspca_dev->last_packet_type = DISCARD_PACKET;
608 return;
609 }
610 sd->synchro = 1;
611 sd->packet++;
612 memcpy(&sd->tmpbuf[sd->buflen], data, len);
613 sd->buflen += len;
614 }
615
616 static void setcontrast(struct gspca_dev *gspca_dev)
617 {
618 }
619
620 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
621 {
622 struct sd *sd = (struct sd *) gspca_dev;
623
624 sd->brightness = val;
625 if (gspca_dev->streaming)
626 setbrightness(gspca_dev);
627 return 0;
628 }
629
630 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
631 {
632 struct sd *sd = (struct sd *) gspca_dev;
633
634 *val = sd->brightness;
635 return 0;
636 }
637
638 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
639 {
640 struct sd *sd = (struct sd *) gspca_dev;
641
642 sd->contrast = val;
643 if (gspca_dev->streaming)
644 setcontrast(gspca_dev);
645 return 0;
646 }
647
648 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
649 {
650 struct sd *sd = (struct sd *) gspca_dev;
651
652 *val = sd->contrast;
653 return 0;
654 }
655
656 /* sub-driver description */
657 static const struct sd_desc sd_desc = {
658 .name = MODULE_NAME,
659 .ctrls = sd_ctrls,
660 .nctrls = ARRAY_SIZE(sd_ctrls),
661 .config = sd_config,
662 .open = sd_open,
663 .start = sd_start,
664 .stopN = sd_stopN,
665 .stop0 = sd_stop0,
666 .close = sd_close,
667 .pkt_scan = sd_pkt_scan,
668 };
669
670 /* -- module initialisation -- */
671 #define DVNM(name) .driver_info = (kernel_ulong_t) name
672 static const __devinitdata struct usb_device_id device_table[] = {
673 {USB_DEVICE(0x046d, 0x0920), DVNM("QC Express")},
674 {USB_DEVICE(0x046d, 0x0921), DVNM("Labtec Webcam")},
675 {USB_DEVICE(0x0545, 0x808b), DVNM("Veo Stingray")},
676 {USB_DEVICE(0x0545, 0x8333), DVNM("Veo Stingray")},
677 {USB_DEVICE(0x0923, 0x010f), DVNM("ICM532 cams")},
678 {}
679 };
680
681 MODULE_DEVICE_TABLE(usb, device_table);
682
683 /* -- device connect -- */
684 static int sd_probe(struct usb_interface *intf,
685 const struct usb_device_id *id)
686 {
687 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
688 THIS_MODULE);
689 }
690
691 static struct usb_driver sd_driver = {
692 .name = MODULE_NAME,
693 .id_table = device_table,
694 .probe = sd_probe,
695 .disconnect = gspca_disconnect,
696 };
697
698 /* -- module insert / remove -- */
699 static int __init sd_mod_init(void)
700 {
701 if (usb_register(&sd_driver) < 0)
702 return -1;
703 PDEBUG(D_PROBE, "v%s registered", version);
704 return 0;
705 }
706
707 static void __exit sd_mod_exit(void)
708 {
709 usb_deregister(&sd_driver);
710 PDEBUG(D_PROBE, "deregistered");
711 }
712
713 module_init(sd_mod_init);
714 module_exit(sd_mod_exit);
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