2 * Etoms Et61x151 GPL Linux driver by Michel Xhaard (09/09/2004)
4 * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
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
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.
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
21 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
23 #define MODULE_NAME "etoms"
27 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
28 MODULE_DESCRIPTION("Etoms USB Camera Driver");
29 MODULE_LICENSE("GPL");
31 /* specific webcam descriptor */
33 struct gspca_dev gspca_dev; /* !! must be the first item */
35 unsigned char autogain;
38 #define SENSOR_PAS106 0
39 #define SENSOR_TAS5130CXX 1
41 #define AG_CNT_START 13
44 static const struct v4l2_pix_format vga_mode[] = {
45 {320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
47 .sizeimage = 320 * 240,
48 .colorspace = V4L2_COLORSPACE_SRGB,
50 /* {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
52 .sizeimage = 640 * 480,
53 .colorspace = V4L2_COLORSPACE_SRGB,
57 static const struct v4l2_pix_format sif_mode[] = {
58 {176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
60 .sizeimage = 176 * 144,
61 .colorspace = V4L2_COLORSPACE_SRGB,
63 {352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
65 .sizeimage = 352 * 288,
66 .colorspace = V4L2_COLORSPACE_SRGB,
70 #define ETOMS_ALT_SIZE_1000 12
72 #define ET_GPIO_DIR_CTRL 0x04 /* Control IO bit[0..5] (0 in 1 out) */
73 #define ET_GPIO_OUT 0x05 /* Only IO data */
74 #define ET_GPIO_IN 0x06 /* Read Only IO data */
75 #define ET_RESET_ALL 0x03
77 #define ET_CTRL 0x02 /* enable i2c OutClck Powerdown mode */
79 #define ET_COMP 0x12 /* Compression register */
82 #define ET_COMP_VAL0 0x02
83 #define ET_COMP_VAL1 0x03
94 /* base registers for luma calculation */
95 #define ET_LUMA_CENTER 0x39
98 #define ET_G_GREEN1 0x4e
99 #define ET_G_BLUE 0x4f
100 #define ET_G_GREEN2 0x50
101 #define ET_G_GR_H 0x51
102 #define ET_G_GB_H 0x52
104 #define ET_O_RED 0x34
105 #define ET_O_GREEN1 0x35
106 #define ET_O_BLUE 0x36
107 #define ET_O_GREEN2 0x37
109 #define ET_SYNCHRO 0x68
110 #define ET_STARTX 0x69
111 #define ET_STARTY 0x6a
112 #define ET_WIDTH_LOW 0x6b
113 #define ET_HEIGTH_LOW 0x6c
114 #define ET_W_H_HEIGTH 0x6d
116 #define ET_REG6e 0x6e /* OBW */
117 #define ET_REG6f 0x6f /* OBW */
118 #define ET_REG70 0x70 /* OBW_AWB */
119 #define ET_REG71 0x71 /* OBW_AWB */
120 #define ET_REG72 0x72 /* OBW_AWB */
121 #define ET_REG73 0x73 /* Clkdelay ns */
122 #define ET_REG74 0x74 /* test pattern */
123 #define ET_REG75 0x75 /* test pattern */
125 #define ET_I2C_CLK 0x8c
126 #define ET_PXL_CLK 0x60
128 #define ET_I2C_BASE 0x89
129 #define ET_I2C_COUNT 0x8a
130 #define ET_I2C_PREFETCH 0x8b
131 #define ET_I2C_REG 0x88
132 #define ET_I2C_DATA7 0x87
133 #define ET_I2C_DATA6 0x86
134 #define ET_I2C_DATA5 0x85
135 #define ET_I2C_DATA4 0x84
136 #define ET_I2C_DATA3 0x83
137 #define ET_I2C_DATA2 0x82
138 #define ET_I2C_DATA1 0x81
139 #define ET_I2C_DATA0 0x80
141 #define PAS106_REG2 0x02 /* pxlClk = systemClk/(reg2) */
142 #define PAS106_REG3 0x03 /* line/frame H [11..4] */
143 #define PAS106_REG4 0x04 /* line/frame L [3..0] */
144 #define PAS106_REG5 0x05 /* exposure time line offset(default 5) */
145 #define PAS106_REG6 0x06 /* exposure time pixel offset(default 6) */
146 #define PAS106_REG7 0x07 /* signbit Dac (default 0) */
147 #define PAS106_REG9 0x09
148 #define PAS106_REG0e 0x0e /* global gain [4..0](default 0x0e) */
149 #define PAS106_REG13 0x13 /* end i2c write */
151 static const __u8 GainRGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
153 static const __u8 I2c2[] = { 0x08, 0x08, 0x08, 0x08, 0x0d };
155 static const __u8 I2c3[] = { 0x12, 0x05 };
157 static const __u8 I2c4[] = { 0x41, 0x08 };
159 /* read 'len' bytes to gspca_dev->usb_buf */
160 static void reg_r(struct gspca_dev *gspca_dev,
164 struct usb_device *dev = gspca_dev->dev;
167 if (len > USB_BUF_SZ) {
168 pr_err("reg_r: buffer overflow\n");
173 usb_rcvctrlpipe(dev, 0),
175 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
177 index, gspca_dev->usb_buf, len, 500);
178 PDEBUG(D_USBI, "reg read [%02x] -> %02x ..",
179 index, gspca_dev->usb_buf[0]);
182 static void reg_w_val(struct gspca_dev *gspca_dev,
186 struct usb_device *dev = gspca_dev->dev;
188 gspca_dev->usb_buf[0] = val;
190 usb_sndctrlpipe(dev, 0),
192 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
194 index, gspca_dev->usb_buf, 1, 500);
197 static void reg_w(struct gspca_dev *gspca_dev,
202 struct usb_device *dev = gspca_dev->dev;
205 if (len > USB_BUF_SZ) {
206 pr_err("reg_w: buffer overflow\n");
209 PDEBUG(D_USBO, "reg write [%02x] = %02x..", index, *buffer);
211 memcpy(gspca_dev->usb_buf, buffer, len);
213 usb_sndctrlpipe(dev, 0),
215 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
216 0, index, gspca_dev->usb_buf, len, 500);
219 static int i2c_w(struct gspca_dev *gspca_dev,
224 /* buffer should be [D0..D7] */
227 /* set the base address */
228 reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);
229 /* sensor base for the pas106 */
230 /* set count and prefetch */
231 ptchcount = ((len & 0x07) << 4) | (mode & 0x03);
232 reg_w_val(gspca_dev, ET_I2C_COUNT, ptchcount);
233 /* set the register base */
234 reg_w_val(gspca_dev, ET_I2C_REG, reg);
236 reg_w_val(gspca_dev, ET_I2C_DATA0 + len, buffer[len]);
240 static int i2c_r(struct gspca_dev *gspca_dev,
243 /* set the base address */
244 reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);
245 /* sensor base for the pas106 */
246 /* set count and prefetch (cnd: 4 bits - mode: 4 bits) */
247 reg_w_val(gspca_dev, ET_I2C_COUNT, 0x11);
248 reg_w_val(gspca_dev, ET_I2C_REG, reg); /* set the register base */
249 reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x02); /* prefetch */
250 reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x00);
251 reg_r(gspca_dev, ET_I2C_DATA0, 1); /* read one byte */
255 static int Et_WaitStatus(struct gspca_dev *gspca_dev)
260 reg_r(gspca_dev, ET_ClCK, 1);
261 if (gspca_dev->usb_buf[0] != 0)
267 static int et_video(struct gspca_dev *gspca_dev,
272 reg_w_val(gspca_dev, ET_GPIO_OUT,
273 on ? 0x10 /* startvideo - set Bit5 */
274 : 0); /* stopvideo */
275 ret = Et_WaitStatus(gspca_dev);
277 PDEBUG(D_ERR, "timeout video on/off");
281 static void Et_init2(struct gspca_dev *gspca_dev)
284 static const __u8 FormLine[] = { 0x84, 0x03, 0x14, 0xf4, 0x01, 0x05 };
286 PDEBUG(D_STREAM, "Open Init2 ET");
287 reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 0x2f);
288 reg_w_val(gspca_dev, ET_GPIO_OUT, 0x10);
289 reg_r(gspca_dev, ET_GPIO_IN, 1);
290 reg_w_val(gspca_dev, ET_ClCK, 0x14); /* 0x14 // 0x16 enabled pattern */
291 reg_w_val(gspca_dev, ET_CTRL, 0x1b);
293 /* compression et subsampling */
294 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
295 value = ET_COMP_VAL1; /* 320 */
297 value = ET_COMP_VAL0; /* 640 */
298 reg_w_val(gspca_dev, ET_COMP, value);
299 reg_w_val(gspca_dev, ET_MAXQt, 0x1f);
300 reg_w_val(gspca_dev, ET_MINQt, 0x04);
301 /* undocumented registers */
302 reg_w_val(gspca_dev, ET_REG1d, 0xff);
303 reg_w_val(gspca_dev, ET_REG1e, 0xff);
304 reg_w_val(gspca_dev, ET_REG1f, 0xff);
305 reg_w_val(gspca_dev, ET_REG20, 0x35);
306 reg_w_val(gspca_dev, ET_REG21, 0x01);
307 reg_w_val(gspca_dev, ET_REG22, 0x00);
308 reg_w_val(gspca_dev, ET_REG23, 0xff);
309 reg_w_val(gspca_dev, ET_REG24, 0xff);
310 reg_w_val(gspca_dev, ET_REG25, 0x0f);
312 reg_w_val(gspca_dev, 0x30, 0x11); /* 0x30 */
313 reg_w_val(gspca_dev, 0x31, 0x40);
314 reg_w_val(gspca_dev, 0x32, 0x00);
315 reg_w_val(gspca_dev, ET_O_RED, 0x00); /* 0x34 */
316 reg_w_val(gspca_dev, ET_O_GREEN1, 0x00);
317 reg_w_val(gspca_dev, ET_O_BLUE, 0x00);
318 reg_w_val(gspca_dev, ET_O_GREEN2, 0x00);
320 reg_w_val(gspca_dev, ET_G_RED, 0x80); /* 0x4d */
321 reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
322 reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
323 reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
324 reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
325 reg_w_val(gspca_dev, ET_G_GB_H, 0x00); /* 0x52 */
326 /* Window control registers */
327 reg_w_val(gspca_dev, 0x61, 0x80); /* use cmc_out */
328 reg_w_val(gspca_dev, 0x62, 0x02);
329 reg_w_val(gspca_dev, 0x63, 0x03);
330 reg_w_val(gspca_dev, 0x64, 0x14);
331 reg_w_val(gspca_dev, 0x65, 0x0e);
332 reg_w_val(gspca_dev, 0x66, 0x02);
333 reg_w_val(gspca_dev, 0x67, 0x02);
335 /**************************************/
336 reg_w_val(gspca_dev, ET_SYNCHRO, 0x8f); /* 0x68 */
337 reg_w_val(gspca_dev, ET_STARTX, 0x69); /* 0x6a //0x69 */
338 reg_w_val(gspca_dev, ET_STARTY, 0x0d); /* 0x0d //0x0c */
339 reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x80);
340 reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0xe0);
341 reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x60); /* 6d */
342 reg_w_val(gspca_dev, ET_REG6e, 0x86);
343 reg_w_val(gspca_dev, ET_REG6f, 0x01);
344 reg_w_val(gspca_dev, ET_REG70, 0x26);
345 reg_w_val(gspca_dev, ET_REG71, 0x7a);
346 reg_w_val(gspca_dev, ET_REG72, 0x01);
347 /* Clock Pattern registers ***************** */
348 reg_w_val(gspca_dev, ET_REG73, 0x00);
349 reg_w_val(gspca_dev, ET_REG74, 0x18); /* 0x28 */
350 reg_w_val(gspca_dev, ET_REG75, 0x0f); /* 0x01 */
351 /**********************************************/
352 reg_w_val(gspca_dev, 0x8a, 0x20);
353 reg_w_val(gspca_dev, 0x8d, 0x0f);
354 reg_w_val(gspca_dev, 0x8e, 0x08);
355 /**************************************/
356 reg_w_val(gspca_dev, 0x03, 0x08);
357 reg_w_val(gspca_dev, ET_PXL_CLK, 0x03);
358 reg_w_val(gspca_dev, 0x81, 0xff);
359 reg_w_val(gspca_dev, 0x80, 0x00);
360 reg_w_val(gspca_dev, 0x81, 0xff);
361 reg_w_val(gspca_dev, 0x80, 0x20);
362 reg_w_val(gspca_dev, 0x03, 0x01);
363 reg_w_val(gspca_dev, 0x03, 0x00);
364 reg_w_val(gspca_dev, 0x03, 0x08);
365 /********************************************/
367 /* reg_r(gspca_dev, ET_I2C_BASE, 1);
368 always 0x40 as the pas106 ??? */
370 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
371 value = 0x04; /* 320 */
373 value = 0x1e; /* 0x17 * setting PixelClock
374 * 0x03 mean 24/(3+1) = 6 Mhz
375 * 0x05 -> 24/(5+1) = 4 Mhz
376 * 0x0b -> 24/(11+1) = 2 Mhz
377 * 0x17 -> 24/(23+1) = 1 Mhz
379 reg_w_val(gspca_dev, ET_PXL_CLK, value);
380 /* now set by fifo the FormatLine setting */
381 reg_w(gspca_dev, 0x62, FormLine, 6);
383 /* set exposure times [ 0..0x78] 0->longvalue 0x78->shortvalue */
384 reg_w_val(gspca_dev, 0x81, 0x47); /* 0x47; */
385 reg_w_val(gspca_dev, 0x80, 0x40); /* 0x40; */
387 /* Brightness change Brith+ decrease value */
388 /* Brigth- increase value */
389 /* original value = 0x70; */
390 reg_w_val(gspca_dev, 0x81, 0x30); /* 0x20; - set brightness */
391 reg_w_val(gspca_dev, 0x80, 0x20); /* 0x20; */
394 static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
398 for (i = 0; i < 4; i++)
399 reg_w_val(gspca_dev, ET_O_RED + i, val);
402 static void setcontrast(struct gspca_dev *gspca_dev, s32 val)
404 __u8 RGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
406 memset(RGBG, val, sizeof(RGBG) - 2);
407 reg_w(gspca_dev, ET_G_RED, RGBG, 6);
410 static void setcolors(struct gspca_dev *gspca_dev, s32 val)
412 struct sd *sd = (struct sd *) gspca_dev;
413 __u8 I2cc[] = { 0x05, 0x02, 0x02, 0x05, 0x0d };
414 __u8 i2cflags = 0x01;
415 /* __u8 green = 0; */
417 I2cc[3] = val; /* red */
418 I2cc[0] = 15 - val; /* blue */
419 /* green = 15 - ((((7*I2cc[0]) >> 2 ) + I2cc[3]) >> 1); */
420 /* I2cc[1] = I2cc[2] = green; */
421 if (sd->sensor == SENSOR_PAS106) {
422 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);
423 i2c_w(gspca_dev, PAS106_REG9, I2cc, sizeof I2cc, 1);
425 /* PDEBUG(D_CONF , "Etoms red %d blue %d green %d",
426 I2cc[3], I2cc[0], green); */
429 static s32 getcolors(struct gspca_dev *gspca_dev)
431 struct sd *sd = (struct sd *) gspca_dev;
433 if (sd->sensor == SENSOR_PAS106) {
434 /* i2c_r(gspca_dev, PAS106_REG9); * blue */
435 i2c_r(gspca_dev, PAS106_REG9 + 3); /* red */
436 return gspca_dev->usb_buf[0] & 0x0f;
441 static void setautogain(struct gspca_dev *gspca_dev)
443 struct sd *sd = (struct sd *) gspca_dev;
446 sd->ag_cnt = AG_CNT_START;
451 static void Et_init1(struct gspca_dev *gspca_dev)
454 /* __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0x22, 0xac, 0x00, 0x01, 0x00}; */
455 __u8 I2c0[] = { 0x0a, 0x12, 0x05, 0x6d, 0xcd, 0x00, 0x01, 0x00 };
456 /* try 1/120 0x6d 0xcd 0x40 */
457 /* __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0xfe, 0xfe, 0xc0, 0x01, 0x00};
460 PDEBUG(D_STREAM, "Open Init1 ET");
461 reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 7);
462 reg_r(gspca_dev, ET_GPIO_IN, 1);
463 reg_w_val(gspca_dev, ET_RESET_ALL, 1);
464 reg_w_val(gspca_dev, ET_RESET_ALL, 0);
465 reg_w_val(gspca_dev, ET_ClCK, 0x10);
466 reg_w_val(gspca_dev, ET_CTRL, 0x19);
467 /* compression et subsampling */
468 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
469 value = ET_COMP_VAL1;
471 value = ET_COMP_VAL0;
472 PDEBUG(D_STREAM, "Open mode %d Compression %d",
473 gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv,
475 reg_w_val(gspca_dev, ET_COMP, value);
476 reg_w_val(gspca_dev, ET_MAXQt, 0x1d);
477 reg_w_val(gspca_dev, ET_MINQt, 0x02);
478 /* undocumented registers */
479 reg_w_val(gspca_dev, ET_REG1d, 0xff);
480 reg_w_val(gspca_dev, ET_REG1e, 0xff);
481 reg_w_val(gspca_dev, ET_REG1f, 0xff);
482 reg_w_val(gspca_dev, ET_REG20, 0x35);
483 reg_w_val(gspca_dev, ET_REG21, 0x01);
484 reg_w_val(gspca_dev, ET_REG22, 0x00);
485 reg_w_val(gspca_dev, ET_REG23, 0xf7);
486 reg_w_val(gspca_dev, ET_REG24, 0xff);
487 reg_w_val(gspca_dev, ET_REG25, 0x07);
489 reg_w_val(gspca_dev, ET_G_RED, 0x80);
490 reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
491 reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
492 reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
493 reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
494 reg_w_val(gspca_dev, ET_G_GB_H, 0x00);
495 /* Window control registers */
496 reg_w_val(gspca_dev, ET_SYNCHRO, 0xf0);
497 reg_w_val(gspca_dev, ET_STARTX, 0x56); /* 0x56 */
498 reg_w_val(gspca_dev, ET_STARTY, 0x05); /* 0x04 */
499 reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x60);
500 reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0x20);
501 reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x50);
502 reg_w_val(gspca_dev, ET_REG6e, 0x86);
503 reg_w_val(gspca_dev, ET_REG6f, 0x01);
504 reg_w_val(gspca_dev, ET_REG70, 0x86);
505 reg_w_val(gspca_dev, ET_REG71, 0x14);
506 reg_w_val(gspca_dev, ET_REG72, 0x00);
507 /* Clock Pattern registers */
508 reg_w_val(gspca_dev, ET_REG73, 0x00);
509 reg_w_val(gspca_dev, ET_REG74, 0x00);
510 reg_w_val(gspca_dev, ET_REG75, 0x0a);
511 reg_w_val(gspca_dev, ET_I2C_CLK, 0x04);
512 reg_w_val(gspca_dev, ET_PXL_CLK, 0x01);
514 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
516 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);
517 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
519 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
520 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
523 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);
527 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);
528 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
530 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
531 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
534 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);
535 /* bit 2 enable bit 1:2 select 0 1 2 3
536 value = 0x07; * curve 0 *
537 i2c_w(gspca_dev, PAS106_REG0f, &value, 1, 1);
543 /* i2c_w(gspca_dev, PAS106_REG5, &value, 1, 1); */
544 /* magnetude and sign bit for DAC */
545 i2c_w(gspca_dev, PAS106_REG7, I2c4, sizeof I2c4, 1);
546 /* now set by fifo the whole colors setting */
547 reg_w(gspca_dev, ET_G_RED, GainRGBG, 6);
548 setcolors(gspca_dev, getcolors(gspca_dev));
551 /* this function is called at probe time */
552 static int sd_config(struct gspca_dev *gspca_dev,
553 const struct usb_device_id *id)
555 struct sd *sd = (struct sd *) gspca_dev;
558 cam = &gspca_dev->cam;
559 sd->sensor = id->driver_info;
560 if (sd->sensor == SENSOR_PAS106) {
561 cam->cam_mode = sif_mode;
562 cam->nmodes = ARRAY_SIZE(sif_mode);
564 cam->cam_mode = vga_mode;
565 cam->nmodes = ARRAY_SIZE(vga_mode);
571 /* this function is called at probe and resume time */
572 static int sd_init(struct gspca_dev *gspca_dev)
574 struct sd *sd = (struct sd *) gspca_dev;
576 if (sd->sensor == SENSOR_PAS106)
580 reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);
581 et_video(gspca_dev, 0); /* video off */
585 /* -- start the camera -- */
586 static int sd_start(struct gspca_dev *gspca_dev)
588 struct sd *sd = (struct sd *) gspca_dev;
590 if (sd->sensor == SENSOR_PAS106)
595 setautogain(gspca_dev);
597 reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);
598 et_video(gspca_dev, 1); /* video on */
602 static void sd_stopN(struct gspca_dev *gspca_dev)
604 et_video(gspca_dev, 0); /* video off */
607 static __u8 Et_getgainG(struct gspca_dev *gspca_dev)
609 struct sd *sd = (struct sd *) gspca_dev;
611 if (sd->sensor == SENSOR_PAS106) {
612 i2c_r(gspca_dev, PAS106_REG0e);
613 PDEBUG(D_CONF, "Etoms gain G %d", gspca_dev->usb_buf[0]);
614 return gspca_dev->usb_buf[0];
619 static void Et_setgainG(struct gspca_dev *gspca_dev, __u8 gain)
621 struct sd *sd = (struct sd *) gspca_dev;
623 if (sd->sensor == SENSOR_PAS106) {
624 __u8 i2cflags = 0x01;
626 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);
627 i2c_w(gspca_dev, PAS106_REG0e, &gain, 1, 1);
631 #define BLIMIT(bright) \
632 (u8)((bright > 0x1f) ? 0x1f : ((bright < 4) ? 3 : bright))
633 #define LIMIT(color) \
634 (u8)((color > 0xff) ? 0xff : ((color < 0) ? 0 : color))
636 static void do_autogain(struct gspca_dev *gspca_dev)
638 struct sd *sd = (struct sd *) gspca_dev;
640 __u8 luma_mean = 128;
641 __u8 luma_delta = 20;
648 if (--sd->ag_cnt >= 0)
650 sd->ag_cnt = AG_CNT_START;
652 Gbright = Et_getgainG(gspca_dev);
653 reg_r(gspca_dev, ET_LUMA_CENTER, 4);
654 g = (gspca_dev->usb_buf[0] + gspca_dev->usb_buf[3]) >> 1;
655 r = gspca_dev->usb_buf[1];
656 b = gspca_dev->usb_buf[2];
657 r = ((r << 8) - (r << 4) - (r << 3)) >> 10;
658 b = ((b << 7) >> 10);
659 g = ((g << 9) + (g << 7) + (g << 5)) >> 10;
660 luma = LIMIT(r + g + b);
661 PDEBUG(D_FRAM, "Etoms luma G %d", luma);
662 if (luma < luma_mean - luma_delta || luma > luma_mean + luma_delta) {
663 Gbright += (luma_mean - luma) >> spring;
664 Gbright = BLIMIT(Gbright);
665 PDEBUG(D_FRAM, "Etoms Gbright %d", Gbright);
666 Et_setgainG(gspca_dev, (__u8) Gbright);
673 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
674 u8 *data, /* isoc packet */
675 int len) /* iso packet length */
679 seqframe = data[0] & 0x3f;
680 len = (int) (((data[0] & 0xc0) << 2) | data[1]);
681 if (seqframe == 0x3f) {
683 "header packet found datalength %d !!", len);
684 PDEBUG(D_FRAM, "G %d R %d G %d B %d",
685 data[2], data[3], data[4], data[5]);
687 /* don't change datalength as the chips provided it */
688 gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
689 gspca_frame_add(gspca_dev, FIRST_PACKET, data, len);
694 gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
695 } else { /* Drop Packet */
696 gspca_dev->last_packet_type = DISCARD_PACKET;
700 static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
702 struct gspca_dev *gspca_dev =
703 container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
704 struct sd *sd = (struct sd *)gspca_dev;
706 gspca_dev->usb_err = 0;
708 if (!gspca_dev->streaming)
712 case V4L2_CID_BRIGHTNESS:
713 setbrightness(gspca_dev, ctrl->val);
715 case V4L2_CID_CONTRAST:
716 setcontrast(gspca_dev, ctrl->val);
718 case V4L2_CID_SATURATION:
719 setcolors(gspca_dev, ctrl->val);
721 case V4L2_CID_AUTOGAIN:
722 sd->autogain = ctrl->val;
723 setautogain(gspca_dev);
726 return gspca_dev->usb_err;
729 static const struct v4l2_ctrl_ops sd_ctrl_ops = {
733 static int sd_init_controls(struct gspca_dev *gspca_dev)
735 struct sd *sd = (struct sd *)gspca_dev;
736 struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
738 gspca_dev->vdev.ctrl_handler = hdl;
739 v4l2_ctrl_handler_init(hdl, 4);
740 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
741 V4L2_CID_BRIGHTNESS, 1, 127, 1, 63);
742 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
743 V4L2_CID_CONTRAST, 0, 255, 1, 127);
744 if (sd->sensor == SENSOR_PAS106)
745 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
746 V4L2_CID_SATURATION, 0, 15, 1, 7);
747 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
748 V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
750 pr_err("Could not initialize controls\n");
756 /* sub-driver description */
757 static const struct sd_desc sd_desc = {
761 .init_controls = sd_init_controls,
764 .pkt_scan = sd_pkt_scan,
765 .dq_callback = do_autogain,
768 /* -- module initialisation -- */
769 static const struct usb_device_id device_table[] = {
770 {USB_DEVICE(0x102c, 0x6151), .driver_info = SENSOR_PAS106},
771 #if !defined CONFIG_USB_ET61X251 && !defined CONFIG_USB_ET61X251_MODULE
772 {USB_DEVICE(0x102c, 0x6251), .driver_info = SENSOR_TAS5130CXX},
777 MODULE_DEVICE_TABLE(usb, device_table);
779 /* -- device connect -- */
780 static int sd_probe(struct usb_interface *intf,
781 const struct usb_device_id *id)
783 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
787 static struct usb_driver sd_driver = {
789 .id_table = device_table,
791 .disconnect = gspca_disconnect,
793 .suspend = gspca_suspend,
794 .resume = gspca_resume,
795 .reset_resume = gspca_resume,
799 module_usb_driver(sd_driver);