?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
PM / sleep: Asynchronous threads for suspend_noirq
[linux/fpc-iii.git] / drivers / media / usb / gspca / etoms.c
blob26c9ee1f1045a197ca7624b5dd007396964c3c68
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 pr_fmt(fmt) KBUILD_MODNAME ": " fmt
22
23 #define MODULE_NAME "etoms"
24
25 #include "gspca.h"
26
27 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
28 MODULE_DESCRIPTION("Etoms 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 unsigned char autogain;
36
37 char sensor;
38 #define SENSOR_PAS106 0
39 #define SENSOR_TAS5130CXX 1
40 signed char ag_cnt;
41 #define AG_CNT_START 13
42 };
43
44 static const struct v4l2_pix_format vga_mode[] = {
45 {320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
46 .bytesperline = 320,
47 .sizeimage = 320 * 240,
48 .colorspace = V4L2_COLORSPACE_SRGB,
49 .priv = 1},
50 /* {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
51 .bytesperline = 640,
52 .sizeimage = 640 * 480,
53 .colorspace = V4L2_COLORSPACE_SRGB,
54 .priv = 0}, */
55 };
56
57 static const struct v4l2_pix_format sif_mode[] = {
58 {176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
59 .bytesperline = 176,
60 .sizeimage = 176 * 144,
61 .colorspace = V4L2_COLORSPACE_SRGB,
62 .priv = 1},
63 {352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
64 .bytesperline = 352,
65 .sizeimage = 352 * 288,
66 .colorspace = V4L2_COLORSPACE_SRGB,
67 .priv = 0},
68 };
69
70 #define ETOMS_ALT_SIZE_1000 12
71
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
76 #define ET_ClCK 0x01
77 #define ET_CTRL 0x02 /* enable i2c OutClck Powerdown mode */
78
79 #define ET_COMP 0x12 /* Compression register */
80 #define ET_MAXQt 0x13
81 #define ET_MINQt 0x14
82 #define ET_COMP_VAL0 0x02
83 #define ET_COMP_VAL1 0x03
84
85 #define ET_REG1d 0x1d
86 #define ET_REG1e 0x1e
87 #define ET_REG1f 0x1f
88 #define ET_REG20 0x20
89 #define ET_REG21 0x21
90 #define ET_REG22 0x22
91 #define ET_REG23 0x23
92 #define ET_REG24 0x24
93 #define ET_REG25 0x25
94 /* base registers for luma calculation */
95 #define ET_LUMA_CENTER 0x39
96
97 #define ET_G_RED 0x4d
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
103
104 #define ET_O_RED 0x34
105 #define ET_O_GREEN1 0x35
106 #define ET_O_BLUE 0x36
107 #define ET_O_GREEN2 0x37
108
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
115
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 */
124
125 #define ET_I2C_CLK 0x8c
126 #define ET_PXL_CLK 0x60
127
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
140
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 */
150
151 static const __u8 GainRGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
152
153 static const __u8 I2c2[] = { 0x08, 0x08, 0x08, 0x08, 0x0d };
154
155 static const __u8 I2c3[] = { 0x12, 0x05 };
156
157 static const __u8 I2c4[] = { 0x41, 0x08 };
158
159 /* read 'len' bytes to gspca_dev->usb_buf */
160 static void reg_r(struct gspca_dev *gspca_dev,
161 __u16 index,
162 __u16 len)
163 {
164 struct usb_device *dev = gspca_dev->dev;
165
166 if (len > USB_BUF_SZ) {
167 PERR("reg_r: buffer overflow\n");
168 return;
169 }
170
171 usb_control_msg(dev,
172 usb_rcvctrlpipe(dev, 0),
173 0,
174 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
175 0,
176 index, gspca_dev->usb_buf, len, 500);
177 PDEBUG(D_USBI, "reg read [%02x] -> %02x ..",
178 index, gspca_dev->usb_buf[0]);
179 }
180
181 static void reg_w_val(struct gspca_dev *gspca_dev,
182 __u16 index,
183 __u8 val)
184 {
185 struct usb_device *dev = gspca_dev->dev;
186
187 gspca_dev->usb_buf[0] = val;
188 usb_control_msg(dev,
189 usb_sndctrlpipe(dev, 0),
190 0,
191 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
192 0,
193 index, gspca_dev->usb_buf, 1, 500);
194 }
195
196 static void reg_w(struct gspca_dev *gspca_dev,
197 __u16 index,
198 const __u8 *buffer,
199 __u16 len)
200 {
201 struct usb_device *dev = gspca_dev->dev;
202
203 if (len > USB_BUF_SZ) {
204 pr_err("reg_w: buffer overflow\n");
205 return;
206 }
207 PDEBUG(D_USBO, "reg write [%02x] = %02x..", index, *buffer);
208
209 memcpy(gspca_dev->usb_buf, buffer, len);
210 usb_control_msg(dev,
211 usb_sndctrlpipe(dev, 0),
212 0,
213 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
214 0, index, gspca_dev->usb_buf, len, 500);
215 }
216
217 static int i2c_w(struct gspca_dev *gspca_dev,
218 __u8 reg,
219 const __u8 *buffer,
220 int len, __u8 mode)
221 {
222 /* buffer should be [D0..D7] */
223 __u8 ptchcount;
224
225 /* set the base address */
226 reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);
227 /* sensor base for the pas106 */
228 /* set count and prefetch */
229 ptchcount = ((len & 0x07) << 4) | (mode & 0x03);
230 reg_w_val(gspca_dev, ET_I2C_COUNT, ptchcount);
231 /* set the register base */
232 reg_w_val(gspca_dev, ET_I2C_REG, reg);
233 while (--len >= 0)
234 reg_w_val(gspca_dev, ET_I2C_DATA0 + len, buffer[len]);
235 return 0;
236 }
237
238 static int i2c_r(struct gspca_dev *gspca_dev,
239 __u8 reg)
240 {
241 /* set the base address */
242 reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);
243 /* sensor base for the pas106 */
244 /* set count and prefetch (cnd: 4 bits - mode: 4 bits) */
245 reg_w_val(gspca_dev, ET_I2C_COUNT, 0x11);
246 reg_w_val(gspca_dev, ET_I2C_REG, reg); /* set the register base */
247 reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x02); /* prefetch */
248 reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x00);
249 reg_r(gspca_dev, ET_I2C_DATA0, 1); /* read one byte */
250 return 0;
251 }
252
253 static int Et_WaitStatus(struct gspca_dev *gspca_dev)
254 {
255 int retry = 10;
256
257 while (retry--) {
258 reg_r(gspca_dev, ET_ClCK, 1);
259 if (gspca_dev->usb_buf[0] != 0)
260 return 1;
261 }
262 return 0;
263 }
264
265 static int et_video(struct gspca_dev *gspca_dev,
266 int on)
267 {
268 int ret;
269
270 reg_w_val(gspca_dev, ET_GPIO_OUT,
271 on ? 0x10 /* startvideo - set Bit5 */
272 : 0); /* stopvideo */
273 ret = Et_WaitStatus(gspca_dev);
274 if (ret != 0)
275 PERR("timeout video on/off");
276 return ret;
277 }
278
279 static void Et_init2(struct gspca_dev *gspca_dev)
280 {
281 __u8 value;
282 static const __u8 FormLine[] = { 0x84, 0x03, 0x14, 0xf4, 0x01, 0x05 };
283
284 PDEBUG(D_STREAM, "Open Init2 ET");
285 reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 0x2f);
286 reg_w_val(gspca_dev, ET_GPIO_OUT, 0x10);
287 reg_r(gspca_dev, ET_GPIO_IN, 1);
288 reg_w_val(gspca_dev, ET_ClCK, 0x14); /* 0x14 // 0x16 enabled pattern */
289 reg_w_val(gspca_dev, ET_CTRL, 0x1b);
290
291 /* compression et subsampling */
292 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
293 value = ET_COMP_VAL1; /* 320 */
294 else
295 value = ET_COMP_VAL0; /* 640 */
296 reg_w_val(gspca_dev, ET_COMP, value);
297 reg_w_val(gspca_dev, ET_MAXQt, 0x1f);
298 reg_w_val(gspca_dev, ET_MINQt, 0x04);
299 /* undocumented registers */
300 reg_w_val(gspca_dev, ET_REG1d, 0xff);
301 reg_w_val(gspca_dev, ET_REG1e, 0xff);
302 reg_w_val(gspca_dev, ET_REG1f, 0xff);
303 reg_w_val(gspca_dev, ET_REG20, 0x35);
304 reg_w_val(gspca_dev, ET_REG21, 0x01);
305 reg_w_val(gspca_dev, ET_REG22, 0x00);
306 reg_w_val(gspca_dev, ET_REG23, 0xff);
307 reg_w_val(gspca_dev, ET_REG24, 0xff);
308 reg_w_val(gspca_dev, ET_REG25, 0x0f);
309 /* colors setting */
310 reg_w_val(gspca_dev, 0x30, 0x11); /* 0x30 */
311 reg_w_val(gspca_dev, 0x31, 0x40);
312 reg_w_val(gspca_dev, 0x32, 0x00);
313 reg_w_val(gspca_dev, ET_O_RED, 0x00); /* 0x34 */
314 reg_w_val(gspca_dev, ET_O_GREEN1, 0x00);
315 reg_w_val(gspca_dev, ET_O_BLUE, 0x00);
316 reg_w_val(gspca_dev, ET_O_GREEN2, 0x00);
317 /*************/
318 reg_w_val(gspca_dev, ET_G_RED, 0x80); /* 0x4d */
319 reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
320 reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
321 reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
322 reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
323 reg_w_val(gspca_dev, ET_G_GB_H, 0x00); /* 0x52 */
324 /* Window control registers */
325 reg_w_val(gspca_dev, 0x61, 0x80); /* use cmc_out */
326 reg_w_val(gspca_dev, 0x62, 0x02);
327 reg_w_val(gspca_dev, 0x63, 0x03);
328 reg_w_val(gspca_dev, 0x64, 0x14);
329 reg_w_val(gspca_dev, 0x65, 0x0e);
330 reg_w_val(gspca_dev, 0x66, 0x02);
331 reg_w_val(gspca_dev, 0x67, 0x02);
332
333 /**************************************/
334 reg_w_val(gspca_dev, ET_SYNCHRO, 0x8f); /* 0x68 */
335 reg_w_val(gspca_dev, ET_STARTX, 0x69); /* 0x6a //0x69 */
336 reg_w_val(gspca_dev, ET_STARTY, 0x0d); /* 0x0d //0x0c */
337 reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x80);
338 reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0xe0);
339 reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x60); /* 6d */
340 reg_w_val(gspca_dev, ET_REG6e, 0x86);
341 reg_w_val(gspca_dev, ET_REG6f, 0x01);
342 reg_w_val(gspca_dev, ET_REG70, 0x26);
343 reg_w_val(gspca_dev, ET_REG71, 0x7a);
344 reg_w_val(gspca_dev, ET_REG72, 0x01);
345 /* Clock Pattern registers ***************** */
346 reg_w_val(gspca_dev, ET_REG73, 0x00);
347 reg_w_val(gspca_dev, ET_REG74, 0x18); /* 0x28 */
348 reg_w_val(gspca_dev, ET_REG75, 0x0f); /* 0x01 */
349 /**********************************************/
350 reg_w_val(gspca_dev, 0x8a, 0x20);
351 reg_w_val(gspca_dev, 0x8d, 0x0f);
352 reg_w_val(gspca_dev, 0x8e, 0x08);
353 /**************************************/
354 reg_w_val(gspca_dev, 0x03, 0x08);
355 reg_w_val(gspca_dev, ET_PXL_CLK, 0x03);
356 reg_w_val(gspca_dev, 0x81, 0xff);
357 reg_w_val(gspca_dev, 0x80, 0x00);
358 reg_w_val(gspca_dev, 0x81, 0xff);
359 reg_w_val(gspca_dev, 0x80, 0x20);
360 reg_w_val(gspca_dev, 0x03, 0x01);
361 reg_w_val(gspca_dev, 0x03, 0x00);
362 reg_w_val(gspca_dev, 0x03, 0x08);
363 /********************************************/
364
365 /* reg_r(gspca_dev, ET_I2C_BASE, 1);
366 always 0x40 as the pas106 ??? */
367 /* set the sensor */
368 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
369 value = 0x04; /* 320 */
370 else /* 640 */
371 value = 0x1e; /* 0x17 * setting PixelClock
372 * 0x03 mean 24/(3+1) = 6 Mhz
373 * 0x05 -> 24/(5+1) = 4 Mhz
374 * 0x0b -> 24/(11+1) = 2 Mhz
375 * 0x17 -> 24/(23+1) = 1 Mhz
376 */
377 reg_w_val(gspca_dev, ET_PXL_CLK, value);
378 /* now set by fifo the FormatLine setting */
379 reg_w(gspca_dev, 0x62, FormLine, 6);
380
381 /* set exposure times [ 0..0x78] 0->longvalue 0x78->shortvalue */
382 reg_w_val(gspca_dev, 0x81, 0x47); /* 0x47; */
383 reg_w_val(gspca_dev, 0x80, 0x40); /* 0x40; */
384 /* Pedro change */
385 /* Brightness change Brith+ decrease value */
386 /* Brigth- increase value */
387 /* original value = 0x70; */
388 reg_w_val(gspca_dev, 0x81, 0x30); /* 0x20; - set brightness */
389 reg_w_val(gspca_dev, 0x80, 0x20); /* 0x20; */
390 }
391
392 static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
393 {
394 int i;
395
396 for (i = 0; i < 4; i++)
397 reg_w_val(gspca_dev, ET_O_RED + i, val);
398 }
399
400 static void setcontrast(struct gspca_dev *gspca_dev, s32 val)
401 {
402 __u8 RGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
403
404 memset(RGBG, val, sizeof(RGBG) - 2);
405 reg_w(gspca_dev, ET_G_RED, RGBG, 6);
406 }
407
408 static void setcolors(struct gspca_dev *gspca_dev, s32 val)
409 {
410 struct sd *sd = (struct sd *) gspca_dev;
411 __u8 I2cc[] = { 0x05, 0x02, 0x02, 0x05, 0x0d };
412 __u8 i2cflags = 0x01;
413 /* __u8 green = 0; */
414
415 I2cc[3] = val; /* red */
416 I2cc[0] = 15 - val; /* blue */
417 /* green = 15 - ((((7*I2cc[0]) >> 2 ) + I2cc[3]) >> 1); */
418 /* I2cc[1] = I2cc[2] = green; */
419 if (sd->sensor == SENSOR_PAS106) {
420 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);
421 i2c_w(gspca_dev, PAS106_REG9, I2cc, sizeof I2cc, 1);
422 }
423 /* PDEBUG(D_CONF , "Etoms red %d blue %d green %d",
424 I2cc[3], I2cc[0], green); */
425 }
426
427 static s32 getcolors(struct gspca_dev *gspca_dev)
428 {
429 struct sd *sd = (struct sd *) gspca_dev;
430
431 if (sd->sensor == SENSOR_PAS106) {
432 /* i2c_r(gspca_dev, PAS106_REG9); * blue */
433 i2c_r(gspca_dev, PAS106_REG9 + 3); /* red */
434 return gspca_dev->usb_buf[0] & 0x0f;
435 }
436 return 0;
437 }
438
439 static void setautogain(struct gspca_dev *gspca_dev)
440 {
441 struct sd *sd = (struct sd *) gspca_dev;
442
443 if (sd->autogain)
444 sd->ag_cnt = AG_CNT_START;
445 else
446 sd->ag_cnt = -1;
447 }
448
449 static void Et_init1(struct gspca_dev *gspca_dev)
450 {
451 __u8 value;
452 /* __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0x22, 0xac, 0x00, 0x01, 0x00}; */
453 __u8 I2c0[] = { 0x0a, 0x12, 0x05, 0x6d, 0xcd, 0x00, 0x01, 0x00 };
454 /* try 1/120 0x6d 0xcd 0x40 */
455 /* __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0xfe, 0xfe, 0xc0, 0x01, 0x00};
456 * 1/60000 hmm ?? */
457
458 PDEBUG(D_STREAM, "Open Init1 ET");
459 reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 7);
460 reg_r(gspca_dev, ET_GPIO_IN, 1);
461 reg_w_val(gspca_dev, ET_RESET_ALL, 1);
462 reg_w_val(gspca_dev, ET_RESET_ALL, 0);
463 reg_w_val(gspca_dev, ET_ClCK, 0x10);
464 reg_w_val(gspca_dev, ET_CTRL, 0x19);
465 /* compression et subsampling */
466 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
467 value = ET_COMP_VAL1;
468 else
469 value = ET_COMP_VAL0;
470 PDEBUG(D_STREAM, "Open mode %d Compression %d",
471 gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv,
472 value);
473 reg_w_val(gspca_dev, ET_COMP, value);
474 reg_w_val(gspca_dev, ET_MAXQt, 0x1d);
475 reg_w_val(gspca_dev, ET_MINQt, 0x02);
476 /* undocumented registers */
477 reg_w_val(gspca_dev, ET_REG1d, 0xff);
478 reg_w_val(gspca_dev, ET_REG1e, 0xff);
479 reg_w_val(gspca_dev, ET_REG1f, 0xff);
480 reg_w_val(gspca_dev, ET_REG20, 0x35);
481 reg_w_val(gspca_dev, ET_REG21, 0x01);
482 reg_w_val(gspca_dev, ET_REG22, 0x00);
483 reg_w_val(gspca_dev, ET_REG23, 0xf7);
484 reg_w_val(gspca_dev, ET_REG24, 0xff);
485 reg_w_val(gspca_dev, ET_REG25, 0x07);
486 /* colors setting */
487 reg_w_val(gspca_dev, ET_G_RED, 0x80);
488 reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
489 reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
490 reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
491 reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
492 reg_w_val(gspca_dev, ET_G_GB_H, 0x00);
493 /* Window control registers */
494 reg_w_val(gspca_dev, ET_SYNCHRO, 0xf0);
495 reg_w_val(gspca_dev, ET_STARTX, 0x56); /* 0x56 */
496 reg_w_val(gspca_dev, ET_STARTY, 0x05); /* 0x04 */
497 reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x60);
498 reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0x20);
499 reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x50);
500 reg_w_val(gspca_dev, ET_REG6e, 0x86);
501 reg_w_val(gspca_dev, ET_REG6f, 0x01);
502 reg_w_val(gspca_dev, ET_REG70, 0x86);
503 reg_w_val(gspca_dev, ET_REG71, 0x14);
504 reg_w_val(gspca_dev, ET_REG72, 0x00);
505 /* Clock Pattern registers */
506 reg_w_val(gspca_dev, ET_REG73, 0x00);
507 reg_w_val(gspca_dev, ET_REG74, 0x00);
508 reg_w_val(gspca_dev, ET_REG75, 0x0a);
509 reg_w_val(gspca_dev, ET_I2C_CLK, 0x04);
510 reg_w_val(gspca_dev, ET_PXL_CLK, 0x01);
511 /* set the sensor */
512 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
513 I2c0[0] = 0x06;
514 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);
515 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
516 value = 0x06;
517 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
518 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
519 /* value = 0x1f; */
520 value = 0x04;
521 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);
522 } else {
523 I2c0[0] = 0x0a;
524
525 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);
526 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
527 value = 0x0a;
528 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
529 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
530 value = 0x04;
531 /* value = 0x10; */
532 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);
533 /* bit 2 enable bit 1:2 select 0 1 2 3
534 value = 0x07; * curve 0 *
535 i2c_w(gspca_dev, PAS106_REG0f, &value, 1, 1);
536 */
537 }
538
539 /* value = 0x01; */
540 /* value = 0x22; */
541 /* i2c_w(gspca_dev, PAS106_REG5, &value, 1, 1); */
542 /* magnetude and sign bit for DAC */
543 i2c_w(gspca_dev, PAS106_REG7, I2c4, sizeof I2c4, 1);
544 /* now set by fifo the whole colors setting */
545 reg_w(gspca_dev, ET_G_RED, GainRGBG, 6);
546 setcolors(gspca_dev, getcolors(gspca_dev));
547 }
548
549 /* this function is called at probe time */
550 static int sd_config(struct gspca_dev *gspca_dev,
551 const struct usb_device_id *id)
552 {
553 struct sd *sd = (struct sd *) gspca_dev;
554 struct cam *cam;
555
556 cam = &gspca_dev->cam;
557 sd->sensor = id->driver_info;
558 if (sd->sensor == SENSOR_PAS106) {
559 cam->cam_mode = sif_mode;
560 cam->nmodes = ARRAY_SIZE(sif_mode);
561 } else {
562 cam->cam_mode = vga_mode;
563 cam->nmodes = ARRAY_SIZE(vga_mode);
564 }
565 sd->ag_cnt = -1;
566 return 0;
567 }
568
569 /* this function is called at probe and resume time */
570 static int sd_init(struct gspca_dev *gspca_dev)
571 {
572 struct sd *sd = (struct sd *) gspca_dev;
573
574 if (sd->sensor == SENSOR_PAS106)
575 Et_init1(gspca_dev);
576 else
577 Et_init2(gspca_dev);
578 reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);
579 et_video(gspca_dev, 0); /* video off */
580 return 0;
581 }
582
583 /* -- start the camera -- */
584 static int sd_start(struct gspca_dev *gspca_dev)
585 {
586 struct sd *sd = (struct sd *) gspca_dev;
587
588 if (sd->sensor == SENSOR_PAS106)
589 Et_init1(gspca_dev);
590 else
591 Et_init2(gspca_dev);
592
593 setautogain(gspca_dev);
594
595 reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);
596 et_video(gspca_dev, 1); /* video on */
597 return 0;
598 }
599
600 static void sd_stopN(struct gspca_dev *gspca_dev)
601 {
602 et_video(gspca_dev, 0); /* video off */
603 }
604
605 static __u8 Et_getgainG(struct gspca_dev *gspca_dev)
606 {
607 struct sd *sd = (struct sd *) gspca_dev;
608
609 if (sd->sensor == SENSOR_PAS106) {
610 i2c_r(gspca_dev, PAS106_REG0e);
611 PDEBUG(D_CONF, "Etoms gain G %d", gspca_dev->usb_buf[0]);
612 return gspca_dev->usb_buf[0];
613 }
614 return 0x1f;
615 }
616
617 static void Et_setgainG(struct gspca_dev *gspca_dev, __u8 gain)
618 {
619 struct sd *sd = (struct sd *) gspca_dev;
620
621 if (sd->sensor == SENSOR_PAS106) {
622 __u8 i2cflags = 0x01;
623
624 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);
625 i2c_w(gspca_dev, PAS106_REG0e, &gain, 1, 1);
626 }
627 }
628
629 #define BLIMIT(bright) \
630 (u8)((bright > 0x1f) ? 0x1f : ((bright < 4) ? 3 : bright))
631 #define LIMIT(color) \
632 (u8)((color > 0xff) ? 0xff : ((color < 0) ? 0 : color))
633
634 static void do_autogain(struct gspca_dev *gspca_dev)
635 {
636 struct sd *sd = (struct sd *) gspca_dev;
637 __u8 luma;
638 __u8 luma_mean = 128;
639 __u8 luma_delta = 20;
640 __u8 spring = 4;
641 int Gbright;
642 __u8 r, g, b;
643
644 if (sd->ag_cnt < 0)
645 return;
646 if (--sd->ag_cnt >= 0)
647 return;
648 sd->ag_cnt = AG_CNT_START;
649
650 Gbright = Et_getgainG(gspca_dev);
651 reg_r(gspca_dev, ET_LUMA_CENTER, 4);
652 g = (gspca_dev->usb_buf[0] + gspca_dev->usb_buf[3]) >> 1;
653 r = gspca_dev->usb_buf[1];
654 b = gspca_dev->usb_buf[2];
655 r = ((r << 8) - (r << 4) - (r << 3)) >> 10;
656 b = ((b << 7) >> 10);
657 g = ((g << 9) + (g << 7) + (g << 5)) >> 10;
658 luma = LIMIT(r + g + b);
659 PDEBUG(D_FRAM, "Etoms luma G %d", luma);
660 if (luma < luma_mean - luma_delta || luma > luma_mean + luma_delta) {
661 Gbright += (luma_mean - luma) >> spring;
662 Gbright = BLIMIT(Gbright);
663 PDEBUG(D_FRAM, "Etoms Gbright %d", Gbright);
664 Et_setgainG(gspca_dev, (__u8) Gbright);
665 }
666 }
667
668 #undef BLIMIT
669 #undef LIMIT
670
671 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
672 u8 *data, /* isoc packet */
673 int len) /* iso packet length */
674 {
675 int seqframe;
676
677 seqframe = data[0] & 0x3f;
678 len = (int) (((data[0] & 0xc0) << 2) | data[1]);
679 if (seqframe == 0x3f) {
680 PDEBUG(D_FRAM,
681 "header packet found datalength %d !!", len);
682 PDEBUG(D_FRAM, "G %d R %d G %d B %d",
683 data[2], data[3], data[4], data[5]);
684 data += 30;
685 /* don't change datalength as the chips provided it */
686 gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
687 gspca_frame_add(gspca_dev, FIRST_PACKET, data, len);
688 return;
689 }
690 if (len) {
691 data += 8;
692 gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
693 } else { /* Drop Packet */
694 gspca_dev->last_packet_type = DISCARD_PACKET;
695 }
696 }
697
698 static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
699 {
700 struct gspca_dev *gspca_dev =
701 container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
702 struct sd *sd = (struct sd *)gspca_dev;
703
704 gspca_dev->usb_err = 0;
705
706 if (!gspca_dev->streaming)
707 return 0;
708
709 switch (ctrl->id) {
710 case V4L2_CID_BRIGHTNESS:
711 setbrightness(gspca_dev, ctrl->val);
712 break;
713 case V4L2_CID_CONTRAST:
714 setcontrast(gspca_dev, ctrl->val);
715 break;
716 case V4L2_CID_SATURATION:
717 setcolors(gspca_dev, ctrl->val);
718 break;
719 case V4L2_CID_AUTOGAIN:
720 sd->autogain = ctrl->val;
721 setautogain(gspca_dev);
722 break;
723 }
724 return gspca_dev->usb_err;
725 }
726
727 static const struct v4l2_ctrl_ops sd_ctrl_ops = {
728 .s_ctrl = sd_s_ctrl,
729 };
730
731 static int sd_init_controls(struct gspca_dev *gspca_dev)
732 {
733 struct sd *sd = (struct sd *)gspca_dev;
734 struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
735
736 gspca_dev->vdev.ctrl_handler = hdl;
737 v4l2_ctrl_handler_init(hdl, 4);
738 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
739 V4L2_CID_BRIGHTNESS, 1, 127, 1, 63);
740 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
741 V4L2_CID_CONTRAST, 0, 255, 1, 127);
742 if (sd->sensor == SENSOR_PAS106)
743 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
744 V4L2_CID_SATURATION, 0, 15, 1, 7);
745 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
746 V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
747 if (hdl->error) {
748 pr_err("Could not initialize controls\n");
749 return hdl->error;
750 }
751 return 0;
752 }
753
754 /* sub-driver description */
755 static const struct sd_desc sd_desc = {
756 .name = MODULE_NAME,
757 .config = sd_config,
758 .init = sd_init,
759 .init_controls = sd_init_controls,
760 .start = sd_start,
761 .stopN = sd_stopN,
762 .pkt_scan = sd_pkt_scan,
763 .dq_callback = do_autogain,
764 };
765
766 /* -- module initialisation -- */
767 static const struct usb_device_id device_table[] = {
768 {USB_DEVICE(0x102c, 0x6151), .driver_info = SENSOR_PAS106},
769 {USB_DEVICE(0x102c, 0x6251), .driver_info = SENSOR_TAS5130CXX},
770 {}
771 };
772
773 MODULE_DEVICE_TABLE(usb, device_table);
774
775 /* -- device connect -- */
776 static int sd_probe(struct usb_interface *intf,
777 const struct usb_device_id *id)
778 {
779 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
780 THIS_MODULE);
781 }
782
783 static struct usb_driver sd_driver = {
784 .name = MODULE_NAME,
785 .id_table = device_table,
786 .probe = sd_probe,
787 .disconnect = gspca_disconnect,
788 #ifdef CONFIG_PM
789 .suspend = gspca_suspend,
790 .resume = gspca_resume,
791 .reset_resume = gspca_resume,
792 #endif
793 };
794
795 module_usb_driver(sd_driver);
Linux with added FPC-III support