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Linux 4.19.133
[linux/fpc-iii.git] / drivers / media / usb / gspca / etoms.c
blob48b28897051f237e9a9bcb56fcc7d9f6a0a9410f
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
17 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
18
19 #define MODULE_NAME "etoms"
20
21 #include "gspca.h"
22
23 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
24 MODULE_DESCRIPTION("Etoms USB Camera Driver");
25 MODULE_LICENSE("GPL");
26
27 /* specific webcam descriptor */
28 struct sd {
29 struct gspca_dev gspca_dev; /* !! must be the first item */
30
31 unsigned char autogain;
32
33 char sensor;
34 #define SENSOR_PAS106 0
35 #define SENSOR_TAS5130CXX 1
36 signed char ag_cnt;
37 #define AG_CNT_START 13
38 };
39
40 static const struct v4l2_pix_format vga_mode[] = {
41 {320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
42 .bytesperline = 320,
43 .sizeimage = 320 * 240,
44 .colorspace = V4L2_COLORSPACE_SRGB,
45 .priv = 1},
46 /* {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
47 .bytesperline = 640,
48 .sizeimage = 640 * 480,
49 .colorspace = V4L2_COLORSPACE_SRGB,
50 .priv = 0}, */
51 };
52
53 static const struct v4l2_pix_format sif_mode[] = {
54 {176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
55 .bytesperline = 176,
56 .sizeimage = 176 * 144,
57 .colorspace = V4L2_COLORSPACE_SRGB,
58 .priv = 1},
59 {352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
60 .bytesperline = 352,
61 .sizeimage = 352 * 288,
62 .colorspace = V4L2_COLORSPACE_SRGB,
63 .priv = 0},
64 };
65
66 #define ETOMS_ALT_SIZE_1000 12
67
68 #define ET_GPIO_DIR_CTRL 0x04 /* Control IO bit[0..5] (0 in 1 out) */
69 #define ET_GPIO_OUT 0x05 /* Only IO data */
70 #define ET_GPIO_IN 0x06 /* Read Only IO data */
71 #define ET_RESET_ALL 0x03
72 #define ET_ClCK 0x01
73 #define ET_CTRL 0x02 /* enable i2c OutClck Powerdown mode */
74
75 #define ET_COMP 0x12 /* Compression register */
76 #define ET_MAXQt 0x13
77 #define ET_MINQt 0x14
78 #define ET_COMP_VAL0 0x02
79 #define ET_COMP_VAL1 0x03
80
81 #define ET_REG1d 0x1d
82 #define ET_REG1e 0x1e
83 #define ET_REG1f 0x1f
84 #define ET_REG20 0x20
85 #define ET_REG21 0x21
86 #define ET_REG22 0x22
87 #define ET_REG23 0x23
88 #define ET_REG24 0x24
89 #define ET_REG25 0x25
90 /* base registers for luma calculation */
91 #define ET_LUMA_CENTER 0x39
92
93 #define ET_G_RED 0x4d
94 #define ET_G_GREEN1 0x4e
95 #define ET_G_BLUE 0x4f
96 #define ET_G_GREEN2 0x50
97 #define ET_G_GR_H 0x51
98 #define ET_G_GB_H 0x52
99
100 #define ET_O_RED 0x34
101 #define ET_O_GREEN1 0x35
102 #define ET_O_BLUE 0x36
103 #define ET_O_GREEN2 0x37
104
105 #define ET_SYNCHRO 0x68
106 #define ET_STARTX 0x69
107 #define ET_STARTY 0x6a
108 #define ET_WIDTH_LOW 0x6b
109 #define ET_HEIGTH_LOW 0x6c
110 #define ET_W_H_HEIGTH 0x6d
111
112 #define ET_REG6e 0x6e /* OBW */
113 #define ET_REG6f 0x6f /* OBW */
114 #define ET_REG70 0x70 /* OBW_AWB */
115 #define ET_REG71 0x71 /* OBW_AWB */
116 #define ET_REG72 0x72 /* OBW_AWB */
117 #define ET_REG73 0x73 /* Clkdelay ns */
118 #define ET_REG74 0x74 /* test pattern */
119 #define ET_REG75 0x75 /* test pattern */
120
121 #define ET_I2C_CLK 0x8c
122 #define ET_PXL_CLK 0x60
123
124 #define ET_I2C_BASE 0x89
125 #define ET_I2C_COUNT 0x8a
126 #define ET_I2C_PREFETCH 0x8b
127 #define ET_I2C_REG 0x88
128 #define ET_I2C_DATA7 0x87
129 #define ET_I2C_DATA6 0x86
130 #define ET_I2C_DATA5 0x85
131 #define ET_I2C_DATA4 0x84
132 #define ET_I2C_DATA3 0x83
133 #define ET_I2C_DATA2 0x82
134 #define ET_I2C_DATA1 0x81
135 #define ET_I2C_DATA0 0x80
136
137 #define PAS106_REG2 0x02 /* pxlClk = systemClk/(reg2) */
138 #define PAS106_REG3 0x03 /* line/frame H [11..4] */
139 #define PAS106_REG4 0x04 /* line/frame L [3..0] */
140 #define PAS106_REG5 0x05 /* exposure time line offset(default 5) */
141 #define PAS106_REG6 0x06 /* exposure time pixel offset(default 6) */
142 #define PAS106_REG7 0x07 /* signbit Dac (default 0) */
143 #define PAS106_REG9 0x09
144 #define PAS106_REG0e 0x0e /* global gain [4..0](default 0x0e) */
145 #define PAS106_REG13 0x13 /* end i2c write */
146
147 static const __u8 GainRGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
148
149 static const __u8 I2c2[] = { 0x08, 0x08, 0x08, 0x08, 0x0d };
150
151 static const __u8 I2c3[] = { 0x12, 0x05 };
152
153 static const __u8 I2c4[] = { 0x41, 0x08 };
154
155 /* read 'len' bytes to gspca_dev->usb_buf */
156 static void reg_r(struct gspca_dev *gspca_dev,
157 __u16 index,
158 __u16 len)
159 {
160 struct usb_device *dev = gspca_dev->dev;
161
162 if (len > USB_BUF_SZ) {
163 gspca_err(gspca_dev, "reg_r: buffer overflow\n");
164 return;
165 }
166
167 usb_control_msg(dev,
168 usb_rcvctrlpipe(dev, 0),
169 0,
170 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
171 0,
172 index, gspca_dev->usb_buf, len, 500);
173 gspca_dbg(gspca_dev, D_USBI, "reg read [%02x] -> %02x ..\n",
174 index, gspca_dev->usb_buf[0]);
175 }
176
177 static void reg_w_val(struct gspca_dev *gspca_dev,
178 __u16 index,
179 __u8 val)
180 {
181 struct usb_device *dev = gspca_dev->dev;
182
183 gspca_dev->usb_buf[0] = val;
184 usb_control_msg(dev,
185 usb_sndctrlpipe(dev, 0),
186 0,
187 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
188 0,
189 index, gspca_dev->usb_buf, 1, 500);
190 }
191
192 static void reg_w(struct gspca_dev *gspca_dev,
193 __u16 index,
194 const __u8 *buffer,
195 __u16 len)
196 {
197 struct usb_device *dev = gspca_dev->dev;
198
199 if (len > USB_BUF_SZ) {
200 pr_err("reg_w: buffer overflow\n");
201 return;
202 }
203 gspca_dbg(gspca_dev, D_USBO, "reg write [%02x] = %02x..\n",
204 index, *buffer);
205
206 memcpy(gspca_dev->usb_buf, buffer, len);
207 usb_control_msg(dev,
208 usb_sndctrlpipe(dev, 0),
209 0,
210 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
211 0, index, gspca_dev->usb_buf, len, 500);
212 }
213
214 static int i2c_w(struct gspca_dev *gspca_dev,
215 __u8 reg,
216 const __u8 *buffer,
217 int len, __u8 mode)
218 {
219 /* buffer should be [D0..D7] */
220 __u8 ptchcount;
221
222 /* set the base address */
223 reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);
224 /* sensor base for the pas106 */
225 /* set count and prefetch */
226 ptchcount = ((len & 0x07) << 4) | (mode & 0x03);
227 reg_w_val(gspca_dev, ET_I2C_COUNT, ptchcount);
228 /* set the register base */
229 reg_w_val(gspca_dev, ET_I2C_REG, reg);
230 while (--len >= 0)
231 reg_w_val(gspca_dev, ET_I2C_DATA0 + len, buffer[len]);
232 return 0;
233 }
234
235 static int i2c_r(struct gspca_dev *gspca_dev,
236 __u8 reg)
237 {
238 /* set the base address */
239 reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);
240 /* sensor base for the pas106 */
241 /* set count and prefetch (cnd: 4 bits - mode: 4 bits) */
242 reg_w_val(gspca_dev, ET_I2C_COUNT, 0x11);
243 reg_w_val(gspca_dev, ET_I2C_REG, reg); /* set the register base */
244 reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x02); /* prefetch */
245 reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x00);
246 reg_r(gspca_dev, ET_I2C_DATA0, 1); /* read one byte */
247 return 0;
248 }
249
250 static int Et_WaitStatus(struct gspca_dev *gspca_dev)
251 {
252 int retry = 10;
253
254 while (retry--) {
255 reg_r(gspca_dev, ET_ClCK, 1);
256 if (gspca_dev->usb_buf[0] != 0)
257 return 1;
258 }
259 return 0;
260 }
261
262 static int et_video(struct gspca_dev *gspca_dev,
263 int on)
264 {
265 int ret;
266
267 reg_w_val(gspca_dev, ET_GPIO_OUT,
268 on ? 0x10 /* startvideo - set Bit5 */
269 : 0); /* stopvideo */
270 ret = Et_WaitStatus(gspca_dev);
271 if (ret != 0)
272 gspca_err(gspca_dev, "timeout video on/off\n");
273 return ret;
274 }
275
276 static void Et_init2(struct gspca_dev *gspca_dev)
277 {
278 __u8 value;
279 static const __u8 FormLine[] = { 0x84, 0x03, 0x14, 0xf4, 0x01, 0x05 };
280
281 gspca_dbg(gspca_dev, D_STREAM, "Open Init2 ET\n");
282 reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 0x2f);
283 reg_w_val(gspca_dev, ET_GPIO_OUT, 0x10);
284 reg_r(gspca_dev, ET_GPIO_IN, 1);
285 reg_w_val(gspca_dev, ET_ClCK, 0x14); /* 0x14 // 0x16 enabled pattern */
286 reg_w_val(gspca_dev, ET_CTRL, 0x1b);
287
288 /* compression et subsampling */
289 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
290 value = ET_COMP_VAL1; /* 320 */
291 else
292 value = ET_COMP_VAL0; /* 640 */
293 reg_w_val(gspca_dev, ET_COMP, value);
294 reg_w_val(gspca_dev, ET_MAXQt, 0x1f);
295 reg_w_val(gspca_dev, ET_MINQt, 0x04);
296 /* undocumented registers */
297 reg_w_val(gspca_dev, ET_REG1d, 0xff);
298 reg_w_val(gspca_dev, ET_REG1e, 0xff);
299 reg_w_val(gspca_dev, ET_REG1f, 0xff);
300 reg_w_val(gspca_dev, ET_REG20, 0x35);
301 reg_w_val(gspca_dev, ET_REG21, 0x01);
302 reg_w_val(gspca_dev, ET_REG22, 0x00);
303 reg_w_val(gspca_dev, ET_REG23, 0xff);
304 reg_w_val(gspca_dev, ET_REG24, 0xff);
305 reg_w_val(gspca_dev, ET_REG25, 0x0f);
306 /* colors setting */
307 reg_w_val(gspca_dev, 0x30, 0x11); /* 0x30 */
308 reg_w_val(gspca_dev, 0x31, 0x40);
309 reg_w_val(gspca_dev, 0x32, 0x00);
310 reg_w_val(gspca_dev, ET_O_RED, 0x00); /* 0x34 */
311 reg_w_val(gspca_dev, ET_O_GREEN1, 0x00);
312 reg_w_val(gspca_dev, ET_O_BLUE, 0x00);
313 reg_w_val(gspca_dev, ET_O_GREEN2, 0x00);
314 /*************/
315 reg_w_val(gspca_dev, ET_G_RED, 0x80); /* 0x4d */
316 reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
317 reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
318 reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
319 reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
320 reg_w_val(gspca_dev, ET_G_GB_H, 0x00); /* 0x52 */
321 /* Window control registers */
322 reg_w_val(gspca_dev, 0x61, 0x80); /* use cmc_out */
323 reg_w_val(gspca_dev, 0x62, 0x02);
324 reg_w_val(gspca_dev, 0x63, 0x03);
325 reg_w_val(gspca_dev, 0x64, 0x14);
326 reg_w_val(gspca_dev, 0x65, 0x0e);
327 reg_w_val(gspca_dev, 0x66, 0x02);
328 reg_w_val(gspca_dev, 0x67, 0x02);
329
330 /**************************************/
331 reg_w_val(gspca_dev, ET_SYNCHRO, 0x8f); /* 0x68 */
332 reg_w_val(gspca_dev, ET_STARTX, 0x69); /* 0x6a //0x69 */
333 reg_w_val(gspca_dev, ET_STARTY, 0x0d); /* 0x0d //0x0c */
334 reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x80);
335 reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0xe0);
336 reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x60); /* 6d */
337 reg_w_val(gspca_dev, ET_REG6e, 0x86);
338 reg_w_val(gspca_dev, ET_REG6f, 0x01);
339 reg_w_val(gspca_dev, ET_REG70, 0x26);
340 reg_w_val(gspca_dev, ET_REG71, 0x7a);
341 reg_w_val(gspca_dev, ET_REG72, 0x01);
342 /* Clock Pattern registers ***************** */
343 reg_w_val(gspca_dev, ET_REG73, 0x00);
344 reg_w_val(gspca_dev, ET_REG74, 0x18); /* 0x28 */
345 reg_w_val(gspca_dev, ET_REG75, 0x0f); /* 0x01 */
346 /**********************************************/
347 reg_w_val(gspca_dev, 0x8a, 0x20);
348 reg_w_val(gspca_dev, 0x8d, 0x0f);
349 reg_w_val(gspca_dev, 0x8e, 0x08);
350 /**************************************/
351 reg_w_val(gspca_dev, 0x03, 0x08);
352 reg_w_val(gspca_dev, ET_PXL_CLK, 0x03);
353 reg_w_val(gspca_dev, 0x81, 0xff);
354 reg_w_val(gspca_dev, 0x80, 0x00);
355 reg_w_val(gspca_dev, 0x81, 0xff);
356 reg_w_val(gspca_dev, 0x80, 0x20);
357 reg_w_val(gspca_dev, 0x03, 0x01);
358 reg_w_val(gspca_dev, 0x03, 0x00);
359 reg_w_val(gspca_dev, 0x03, 0x08);
360 /********************************************/
361
362 /* reg_r(gspca_dev, ET_I2C_BASE, 1);
363 always 0x40 as the pas106 ??? */
364 /* set the sensor */
365 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
366 value = 0x04; /* 320 */
367 else /* 640 */
368 value = 0x1e; /* 0x17 * setting PixelClock
369 * 0x03 mean 24/(3+1) = 6 Mhz
370 * 0x05 -> 24/(5+1) = 4 Mhz
371 * 0x0b -> 24/(11+1) = 2 Mhz
372 * 0x17 -> 24/(23+1) = 1 Mhz
373 */
374 reg_w_val(gspca_dev, ET_PXL_CLK, value);
375 /* now set by fifo the FormatLine setting */
376 reg_w(gspca_dev, 0x62, FormLine, 6);
377
378 /* set exposure times [ 0..0x78] 0->longvalue 0x78->shortvalue */
379 reg_w_val(gspca_dev, 0x81, 0x47); /* 0x47; */
380 reg_w_val(gspca_dev, 0x80, 0x40); /* 0x40; */
381 /* Pedro change */
382 /* Brightness change Brith+ decrease value */
383 /* Brigth- increase value */
384 /* original value = 0x70; */
385 reg_w_val(gspca_dev, 0x81, 0x30); /* 0x20; - set brightness */
386 reg_w_val(gspca_dev, 0x80, 0x20); /* 0x20; */
387 }
388
389 static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
390 {
391 int i;
392
393 for (i = 0; i < 4; i++)
394 reg_w_val(gspca_dev, ET_O_RED + i, val);
395 }
396
397 static void setcontrast(struct gspca_dev *gspca_dev, s32 val)
398 {
399 __u8 RGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
400
401 memset(RGBG, val, sizeof(RGBG) - 2);
402 reg_w(gspca_dev, ET_G_RED, RGBG, 6);
403 }
404
405 static void setcolors(struct gspca_dev *gspca_dev, s32 val)
406 {
407 struct sd *sd = (struct sd *) gspca_dev;
408 __u8 I2cc[] = { 0x05, 0x02, 0x02, 0x05, 0x0d };
409 __u8 i2cflags = 0x01;
410 /* __u8 green = 0; */
411
412 I2cc[3] = val; /* red */
413 I2cc[0] = 15 - val; /* blue */
414 /* green = 15 - ((((7*I2cc[0]) >> 2 ) + I2cc[3]) >> 1); */
415 /* I2cc[1] = I2cc[2] = green; */
416 if (sd->sensor == SENSOR_PAS106) {
417 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);
418 i2c_w(gspca_dev, PAS106_REG9, I2cc, sizeof I2cc, 1);
419 }
420 }
421
422 static s32 getcolors(struct gspca_dev *gspca_dev)
423 {
424 struct sd *sd = (struct sd *) gspca_dev;
425
426 if (sd->sensor == SENSOR_PAS106) {
427 /* i2c_r(gspca_dev, PAS106_REG9); * blue */
428 i2c_r(gspca_dev, PAS106_REG9 + 3); /* red */
429 return gspca_dev->usb_buf[0] & 0x0f;
430 }
431 return 0;
432 }
433
434 static void setautogain(struct gspca_dev *gspca_dev)
435 {
436 struct sd *sd = (struct sd *) gspca_dev;
437
438 if (sd->autogain)
439 sd->ag_cnt = AG_CNT_START;
440 else
441 sd->ag_cnt = -1;
442 }
443
444 static void Et_init1(struct gspca_dev *gspca_dev)
445 {
446 __u8 value;
447 /* __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0x22, 0xac, 0x00, 0x01, 0x00}; */
448 __u8 I2c0[] = { 0x0a, 0x12, 0x05, 0x6d, 0xcd, 0x00, 0x01, 0x00 };
449 /* try 1/120 0x6d 0xcd 0x40 */
450 /* __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0xfe, 0xfe, 0xc0, 0x01, 0x00};
451 * 1/60000 hmm ?? */
452
453 gspca_dbg(gspca_dev, D_STREAM, "Open Init1 ET\n\n");
454 reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 7);
455 reg_r(gspca_dev, ET_GPIO_IN, 1);
456 reg_w_val(gspca_dev, ET_RESET_ALL, 1);
457 reg_w_val(gspca_dev, ET_RESET_ALL, 0);
458 reg_w_val(gspca_dev, ET_ClCK, 0x10);
459 reg_w_val(gspca_dev, ET_CTRL, 0x19);
460 /* compression et subsampling */
461 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
462 value = ET_COMP_VAL1;
463 else
464 value = ET_COMP_VAL0;
465 gspca_dbg(gspca_dev, D_STREAM, "Open mode %d Compression %d\n",
466 gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv,
467 value);
468 reg_w_val(gspca_dev, ET_COMP, value);
469 reg_w_val(gspca_dev, ET_MAXQt, 0x1d);
470 reg_w_val(gspca_dev, ET_MINQt, 0x02);
471 /* undocumented registers */
472 reg_w_val(gspca_dev, ET_REG1d, 0xff);
473 reg_w_val(gspca_dev, ET_REG1e, 0xff);
474 reg_w_val(gspca_dev, ET_REG1f, 0xff);
475 reg_w_val(gspca_dev, ET_REG20, 0x35);
476 reg_w_val(gspca_dev, ET_REG21, 0x01);
477 reg_w_val(gspca_dev, ET_REG22, 0x00);
478 reg_w_val(gspca_dev, ET_REG23, 0xf7);
479 reg_w_val(gspca_dev, ET_REG24, 0xff);
480 reg_w_val(gspca_dev, ET_REG25, 0x07);
481 /* colors setting */
482 reg_w_val(gspca_dev, ET_G_RED, 0x80);
483 reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
484 reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
485 reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
486 reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
487 reg_w_val(gspca_dev, ET_G_GB_H, 0x00);
488 /* Window control registers */
489 reg_w_val(gspca_dev, ET_SYNCHRO, 0xf0);
490 reg_w_val(gspca_dev, ET_STARTX, 0x56); /* 0x56 */
491 reg_w_val(gspca_dev, ET_STARTY, 0x05); /* 0x04 */
492 reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x60);
493 reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0x20);
494 reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x50);
495 reg_w_val(gspca_dev, ET_REG6e, 0x86);
496 reg_w_val(gspca_dev, ET_REG6f, 0x01);
497 reg_w_val(gspca_dev, ET_REG70, 0x86);
498 reg_w_val(gspca_dev, ET_REG71, 0x14);
499 reg_w_val(gspca_dev, ET_REG72, 0x00);
500 /* Clock Pattern registers */
501 reg_w_val(gspca_dev, ET_REG73, 0x00);
502 reg_w_val(gspca_dev, ET_REG74, 0x00);
503 reg_w_val(gspca_dev, ET_REG75, 0x0a);
504 reg_w_val(gspca_dev, ET_I2C_CLK, 0x04);
505 reg_w_val(gspca_dev, ET_PXL_CLK, 0x01);
506 /* set the sensor */
507 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
508 I2c0[0] = 0x06;
509 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);
510 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
511 value = 0x06;
512 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
513 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
514 /* value = 0x1f; */
515 value = 0x04;
516 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);
517 } else {
518 I2c0[0] = 0x0a;
519
520 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);
521 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
522 value = 0x0a;
523 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
524 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
525 value = 0x04;
526 /* value = 0x10; */
527 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);
528 /* bit 2 enable bit 1:2 select 0 1 2 3
529 value = 0x07; * curve 0 *
530 i2c_w(gspca_dev, PAS106_REG0f, &value, 1, 1);
531 */
532 }
533
534 /* value = 0x01; */
535 /* value = 0x22; */
536 /* i2c_w(gspca_dev, PAS106_REG5, &value, 1, 1); */
537 /* magnetude and sign bit for DAC */
538 i2c_w(gspca_dev, PAS106_REG7, I2c4, sizeof I2c4, 1);
539 /* now set by fifo the whole colors setting */
540 reg_w(gspca_dev, ET_G_RED, GainRGBG, 6);
541 setcolors(gspca_dev, getcolors(gspca_dev));
542 }
543
544 /* this function is called at probe time */
545 static int sd_config(struct gspca_dev *gspca_dev,
546 const struct usb_device_id *id)
547 {
548 struct sd *sd = (struct sd *) gspca_dev;
549 struct cam *cam;
550
551 cam = &gspca_dev->cam;
552 sd->sensor = id->driver_info;
553 if (sd->sensor == SENSOR_PAS106) {
554 cam->cam_mode = sif_mode;
555 cam->nmodes = ARRAY_SIZE(sif_mode);
556 } else {
557 cam->cam_mode = vga_mode;
558 cam->nmodes = ARRAY_SIZE(vga_mode);
559 }
560 sd->ag_cnt = -1;
561 return 0;
562 }
563
564 /* this function is called at probe and resume time */
565 static int sd_init(struct gspca_dev *gspca_dev)
566 {
567 struct sd *sd = (struct sd *) gspca_dev;
568
569 if (sd->sensor == SENSOR_PAS106)
570 Et_init1(gspca_dev);
571 else
572 Et_init2(gspca_dev);
573 reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);
574 et_video(gspca_dev, 0); /* video off */
575 return 0;
576 }
577
578 /* -- start the camera -- */
579 static int sd_start(struct gspca_dev *gspca_dev)
580 {
581 struct sd *sd = (struct sd *) gspca_dev;
582
583 if (sd->sensor == SENSOR_PAS106)
584 Et_init1(gspca_dev);
585 else
586 Et_init2(gspca_dev);
587
588 setautogain(gspca_dev);
589
590 reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);
591 et_video(gspca_dev, 1); /* video on */
592 return 0;
593 }
594
595 static void sd_stopN(struct gspca_dev *gspca_dev)
596 {
597 et_video(gspca_dev, 0); /* video off */
598 }
599
600 static __u8 Et_getgainG(struct gspca_dev *gspca_dev)
601 {
602 struct sd *sd = (struct sd *) gspca_dev;
603
604 if (sd->sensor == SENSOR_PAS106) {
605 i2c_r(gspca_dev, PAS106_REG0e);
606 gspca_dbg(gspca_dev, D_CONF, "Etoms gain G %d\n",
607 gspca_dev->usb_buf[0]);
608 return gspca_dev->usb_buf[0];
609 }
610 return 0x1f;
611 }
612
613 static void Et_setgainG(struct gspca_dev *gspca_dev, __u8 gain)
614 {
615 struct sd *sd = (struct sd *) gspca_dev;
616
617 if (sd->sensor == SENSOR_PAS106) {
618 __u8 i2cflags = 0x01;
619
620 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);
621 i2c_w(gspca_dev, PAS106_REG0e, &gain, 1, 1);
622 }
623 }
624
625 #define BLIMIT(bright) \
626 (u8)((bright > 0x1f) ? 0x1f : ((bright < 4) ? 3 : bright))
627 #define LIMIT(color) \
628 (u8)((color > 0xff) ? 0xff : ((color < 0) ? 0 : color))
629
630 static void do_autogain(struct gspca_dev *gspca_dev)
631 {
632 struct sd *sd = (struct sd *) gspca_dev;
633 __u8 luma;
634 __u8 luma_mean = 128;
635 __u8 luma_delta = 20;
636 __u8 spring = 4;
637 int Gbright;
638 __u8 r, g, b;
639
640 if (sd->ag_cnt < 0)
641 return;
642 if (--sd->ag_cnt >= 0)
643 return;
644 sd->ag_cnt = AG_CNT_START;
645
646 Gbright = Et_getgainG(gspca_dev);
647 reg_r(gspca_dev, ET_LUMA_CENTER, 4);
648 g = (gspca_dev->usb_buf[0] + gspca_dev->usb_buf[3]) >> 1;
649 r = gspca_dev->usb_buf[1];
650 b = gspca_dev->usb_buf[2];
651 r = ((r << 8) - (r << 4) - (r << 3)) >> 10;
652 b = ((b << 7) >> 10);
653 g = ((g << 9) + (g << 7) + (g << 5)) >> 10;
654 luma = LIMIT(r + g + b);
655 gspca_dbg(gspca_dev, D_FRAM, "Etoms luma G %d\n", luma);
656 if (luma < luma_mean - luma_delta || luma > luma_mean + luma_delta) {
657 Gbright += (luma_mean - luma) >> spring;
658 Gbright = BLIMIT(Gbright);
659 gspca_dbg(gspca_dev, D_FRAM, "Etoms Gbright %d\n", Gbright);
660 Et_setgainG(gspca_dev, (__u8) Gbright);
661 }
662 }
663
664 #undef BLIMIT
665 #undef LIMIT
666
667 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
668 u8 *data, /* isoc packet */
669 int len) /* iso packet length */
670 {
671 int seqframe;
672
673 seqframe = data[0] & 0x3f;
674 len = (int) (((data[0] & 0xc0) << 2) | data[1]);
675 if (seqframe == 0x3f) {
676 gspca_dbg(gspca_dev, D_FRAM,
677 "header packet found datalength %d !!\n", len);
678 gspca_dbg(gspca_dev, D_FRAM, "G %d R %d G %d B %d",
679 data[2], data[3], data[4], data[5]);
680 data += 30;
681 /* don't change datalength as the chips provided it */
682 gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
683 gspca_frame_add(gspca_dev, FIRST_PACKET, data, len);
684 return;
685 }
686 if (len) {
687 data += 8;
688 gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
689 } else { /* Drop Packet */
690 gspca_dev->last_packet_type = DISCARD_PACKET;
691 }
692 }
693
694 static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
695 {
696 struct gspca_dev *gspca_dev =
697 container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
698 struct sd *sd = (struct sd *)gspca_dev;
699
700 gspca_dev->usb_err = 0;
701
702 if (!gspca_dev->streaming)
703 return 0;
704
705 switch (ctrl->id) {
706 case V4L2_CID_BRIGHTNESS:
707 setbrightness(gspca_dev, ctrl->val);
708 break;
709 case V4L2_CID_CONTRAST:
710 setcontrast(gspca_dev, ctrl->val);
711 break;
712 case V4L2_CID_SATURATION:
713 setcolors(gspca_dev, ctrl->val);
714 break;
715 case V4L2_CID_AUTOGAIN:
716 sd->autogain = ctrl->val;
717 setautogain(gspca_dev);
718 break;
719 }
720 return gspca_dev->usb_err;
721 }
722
723 static const struct v4l2_ctrl_ops sd_ctrl_ops = {
724 .s_ctrl = sd_s_ctrl,
725 };
726
727 static int sd_init_controls(struct gspca_dev *gspca_dev)
728 {
729 struct sd *sd = (struct sd *)gspca_dev;
730 struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
731
732 gspca_dev->vdev.ctrl_handler = hdl;
733 v4l2_ctrl_handler_init(hdl, 4);
734 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
735 V4L2_CID_BRIGHTNESS, 1, 127, 1, 63);
736 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
737 V4L2_CID_CONTRAST, 0, 255, 1, 127);
738 if (sd->sensor == SENSOR_PAS106)
739 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
740 V4L2_CID_SATURATION, 0, 15, 1, 7);
741 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
742 V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
743 if (hdl->error) {
744 pr_err("Could not initialize controls\n");
745 return hdl->error;
746 }
747 return 0;
748 }
749
750 /* sub-driver description */
751 static const struct sd_desc sd_desc = {
752 .name = MODULE_NAME,
753 .config = sd_config,
754 .init = sd_init,
755 .init_controls = sd_init_controls,
756 .start = sd_start,
757 .stopN = sd_stopN,
758 .pkt_scan = sd_pkt_scan,
759 .dq_callback = do_autogain,
760 };
761
762 /* -- module initialisation -- */
763 static const struct usb_device_id device_table[] = {
764 {USB_DEVICE(0x102c, 0x6151), .driver_info = SENSOR_PAS106},
765 {USB_DEVICE(0x102c, 0x6251), .driver_info = SENSOR_TAS5130CXX},
766 {}
767 };
768
769 MODULE_DEVICE_TABLE(usb, device_table);
770
771 /* -- device connect -- */
772 static int sd_probe(struct usb_interface *intf,
773 const struct usb_device_id *id)
774 {
775 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
776 THIS_MODULE);
777 }
778
779 static struct usb_driver sd_driver = {
780 .name = MODULE_NAME,
781 .id_table = device_table,
782 .probe = sd_probe,
783 .disconnect = gspca_disconnect,
784 #ifdef CONFIG_PM
785 .suspend = gspca_suspend,
786 .resume = gspca_resume,
787 .reset_resume = gspca_resume,
788 #endif
789 };
790
791 module_usb_driver(sd_driver);
Linux with added FPC-III support