1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Etoms Et61x151 GPL Linux driver by Michel Xhaard (09/09/2004)
4 *
5 * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
6 */
7
8#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
9
10#define MODULE_NAME "etoms"
11
12#include "gspca.h"
13
14MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
15MODULE_DESCRIPTION("Etoms USB Camera Driver");
16MODULE_LICENSE("GPL");
17
18/* specific webcam descriptor */
19struct sd {
20 struct gspca_dev gspca_dev; /* !! must be the first item */
21
22 unsigned char autogain;
23
24 char sensor;
25#define SENSOR_PAS106 0
26#define SENSOR_TAS5130CXX 1
27 signed char ag_cnt;
28#define AG_CNT_START 13
29};
30
31static const struct v4l2_pix_format vga_mode[] = {
32 {320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
33 .bytesperline = 320,
34 .sizeimage = 320 * 240,
35 .colorspace = V4L2_COLORSPACE_SRGB,
36 .priv = 1},
37/* {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
38 .bytesperline = 640,
39 .sizeimage = 640 * 480,
40 .colorspace = V4L2_COLORSPACE_SRGB,
41 .priv = 0}, */
42};
43
44static const struct v4l2_pix_format sif_mode[] = {
45 {176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
46 .bytesperline = 176,
47 .sizeimage = 176 * 144,
48 .colorspace = V4L2_COLORSPACE_SRGB,
49 .priv = 1},
50 {352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
51 .bytesperline = 352,
52 .sizeimage = 352 * 288,
53 .colorspace = V4L2_COLORSPACE_SRGB,
54 .priv = 0},
55};
56
57#define ETOMS_ALT_SIZE_1000 12
58
59#define ET_GPIO_DIR_CTRL 0x04 /* Control IO bit[0..5] (0 in 1 out) */
60#define ET_GPIO_OUT 0x05 /* Only IO data */
61#define ET_GPIO_IN 0x06 /* Read Only IO data */
62#define ET_RESET_ALL 0x03
63#define ET_ClCK 0x01
64#define ET_CTRL 0x02 /* enable i2c OutClck Powerdown mode */
65
66#define ET_COMP 0x12 /* Compression register */
67#define ET_MAXQt 0x13
68#define ET_MINQt 0x14
69#define ET_COMP_VAL0 0x02
70#define ET_COMP_VAL1 0x03
71
72#define ET_REG1d 0x1d
73#define ET_REG1e 0x1e
74#define ET_REG1f 0x1f
75#define ET_REG20 0x20
76#define ET_REG21 0x21
77#define ET_REG22 0x22
78#define ET_REG23 0x23
79#define ET_REG24 0x24
80#define ET_REG25 0x25
81/* base registers for luma calculation */
82#define ET_LUMA_CENTER 0x39
83
84#define ET_G_RED 0x4d
85#define ET_G_GREEN1 0x4e
86#define ET_G_BLUE 0x4f
87#define ET_G_GREEN2 0x50
88#define ET_G_GR_H 0x51
89#define ET_G_GB_H 0x52
90
91#define ET_O_RED 0x34
92#define ET_O_GREEN1 0x35
93#define ET_O_BLUE 0x36
94#define ET_O_GREEN2 0x37
95
96#define ET_SYNCHRO 0x68
97#define ET_STARTX 0x69
98#define ET_STARTY 0x6a
99#define ET_WIDTH_LOW 0x6b
100#define ET_HEIGTH_LOW 0x6c
101#define ET_W_H_HEIGTH 0x6d
102
103#define ET_REG6e 0x6e /* OBW */
104#define ET_REG6f 0x6f /* OBW */
105#define ET_REG70 0x70 /* OBW_AWB */
106#define ET_REG71 0x71 /* OBW_AWB */
107#define ET_REG72 0x72 /* OBW_AWB */
108#define ET_REG73 0x73 /* Clkdelay ns */
109#define ET_REG74 0x74 /* test pattern */
110#define ET_REG75 0x75 /* test pattern */
111
112#define ET_I2C_CLK 0x8c
113#define ET_PXL_CLK 0x60
114
115#define ET_I2C_BASE 0x89
116#define ET_I2C_COUNT 0x8a
117#define ET_I2C_PREFETCH 0x8b
118#define ET_I2C_REG 0x88
119#define ET_I2C_DATA7 0x87
120#define ET_I2C_DATA6 0x86
121#define ET_I2C_DATA5 0x85
122#define ET_I2C_DATA4 0x84
123#define ET_I2C_DATA3 0x83
124#define ET_I2C_DATA2 0x82
125#define ET_I2C_DATA1 0x81
126#define ET_I2C_DATA0 0x80
127
128#define PAS106_REG2 0x02 /* pxlClk = systemClk/(reg2) */
129#define PAS106_REG3 0x03 /* line/frame H [11..4] */
130#define PAS106_REG4 0x04 /* line/frame L [3..0] */
131#define PAS106_REG5 0x05 /* exposure time line offset(default 5) */
132#define PAS106_REG6 0x06 /* exposure time pixel offset(default 6) */
133#define PAS106_REG7 0x07 /* signbit Dac (default 0) */
134#define PAS106_REG9 0x09
135#define PAS106_REG0e 0x0e /* global gain [4..0](default 0x0e) */
136#define PAS106_REG13 0x13 /* end i2c write */
137
138static const __u8 GainRGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
139
140static const __u8 I2c2[] = { 0x08, 0x08, 0x08, 0x08, 0x0d };
141
142static const __u8 I2c3[] = { 0x12, 0x05 };
143
144static const __u8 I2c4[] = { 0x41, 0x08 };
145
146/* read 'len' bytes to gspca_dev->usb_buf */
147static void reg_r(struct gspca_dev *gspca_dev,
148 __u16 index,
149 __u16 len)
150{
151 struct usb_device *dev = gspca_dev->dev;
152
153 if (len > USB_BUF_SZ) {
154 gspca_err(gspca_dev, "reg_r: buffer overflow\n");
155 return;
156 }
157
158 usb_control_msg(dev,
159 usb_rcvctrlpipe(dev, 0),
160 request: 0,
161 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
162 value: 0,
163 index, data: gspca_dev->usb_buf, size: len, timeout: 500);
164 gspca_dbg(gspca_dev, D_USBI, "reg read [%02x] -> %02x ..\n",
165 index, gspca_dev->usb_buf[0]);
166}
167
168static void reg_w_val(struct gspca_dev *gspca_dev,
169 __u16 index,
170 __u8 val)
171{
172 struct usb_device *dev = gspca_dev->dev;
173
174 gspca_dev->usb_buf[0] = val;
175 usb_control_msg(dev,
176 usb_sndctrlpipe(dev, 0),
177 request: 0,
178 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
179 value: 0,
180 index, data: gspca_dev->usb_buf, size: 1, timeout: 500);
181}
182
183static void reg_w(struct gspca_dev *gspca_dev,
184 __u16 index,
185 const __u8 *buffer,
186 __u16 len)
187{
188 struct usb_device *dev = gspca_dev->dev;
189
190 if (len > USB_BUF_SZ) {
191 pr_err("reg_w: buffer overflow\n");
192 return;
193 }
194 gspca_dbg(gspca_dev, D_USBO, "reg write [%02x] = %02x..\n",
195 index, *buffer);
196
197 memcpy(gspca_dev->usb_buf, buffer, len);
198 usb_control_msg(dev,
199 usb_sndctrlpipe(dev, 0),
200 request: 0,
201 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
202 value: 0, index, data: gspca_dev->usb_buf, size: len, timeout: 500);
203}
204
205static int i2c_w(struct gspca_dev *gspca_dev,
206 __u8 reg,
207 const __u8 *buffer,
208 int len, __u8 mode)
209{
210 /* buffer should be [D0..D7] */
211 __u8 ptchcount;
212
213 /* set the base address */
214 reg_w_val(gspca_dev, ET_I2C_BASE, val: 0x40);
215 /* sensor base for the pas106 */
216 /* set count and prefetch */
217 ptchcount = ((len & 0x07) << 4) | (mode & 0x03);
218 reg_w_val(gspca_dev, ET_I2C_COUNT, val: ptchcount);
219 /* set the register base */
220 reg_w_val(gspca_dev, ET_I2C_REG, val: reg);
221 while (--len >= 0)
222 reg_w_val(gspca_dev, ET_I2C_DATA0 + len, val: buffer[len]);
223 return 0;
224}
225
226static int i2c_r(struct gspca_dev *gspca_dev,
227 __u8 reg)
228{
229 /* set the base address */
230 reg_w_val(gspca_dev, ET_I2C_BASE, val: 0x40);
231 /* sensor base for the pas106 */
232 /* set count and prefetch (cnd: 4 bits - mode: 4 bits) */
233 reg_w_val(gspca_dev, ET_I2C_COUNT, val: 0x11);
234 reg_w_val(gspca_dev, ET_I2C_REG, val: reg); /* set the register base */
235 reg_w_val(gspca_dev, ET_I2C_PREFETCH, val: 0x02); /* prefetch */
236 reg_w_val(gspca_dev, ET_I2C_PREFETCH, val: 0x00);
237 reg_r(gspca_dev, ET_I2C_DATA0, len: 1); /* read one byte */
238 return 0;
239}
240
241static int Et_WaitStatus(struct gspca_dev *gspca_dev)
242{
243 int retry = 10;
244
245 while (retry--) {
246 reg_r(gspca_dev, ET_ClCK, len: 1);
247 if (gspca_dev->usb_buf[0] != 0)
248 return 1;
249 }
250 return 0;
251}
252
253static int et_video(struct gspca_dev *gspca_dev,
254 int on)
255{
256 int ret;
257
258 reg_w_val(gspca_dev, ET_GPIO_OUT,
259 val: on ? 0x10 /* startvideo - set Bit5 */
260 : 0); /* stopvideo */
261 ret = Et_WaitStatus(gspca_dev);
262 if (ret != 0)
263 gspca_err(gspca_dev, "timeout video on/off\n");
264 return ret;
265}
266
267static void Et_init2(struct gspca_dev *gspca_dev)
268{
269 __u8 value;
270 static const __u8 FormLine[] = { 0x84, 0x03, 0x14, 0xf4, 0x01, 0x05 };
271
272 gspca_dbg(gspca_dev, D_STREAM, "Open Init2 ET\n");
273 reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, val: 0x2f);
274 reg_w_val(gspca_dev, ET_GPIO_OUT, val: 0x10);
275 reg_r(gspca_dev, ET_GPIO_IN, len: 1);
276 reg_w_val(gspca_dev, ET_ClCK, val: 0x14); /* 0x14 // 0x16 enabled pattern */
277 reg_w_val(gspca_dev, ET_CTRL, val: 0x1b);
278
279 /* compression et subsampling */
280 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
281 value = ET_COMP_VAL1; /* 320 */
282 else
283 value = ET_COMP_VAL0; /* 640 */
284 reg_w_val(gspca_dev, ET_COMP, val: value);
285 reg_w_val(gspca_dev, ET_MAXQt, val: 0x1f);
286 reg_w_val(gspca_dev, ET_MINQt, val: 0x04);
287 /* undocumented registers */
288 reg_w_val(gspca_dev, ET_REG1d, val: 0xff);
289 reg_w_val(gspca_dev, ET_REG1e, val: 0xff);
290 reg_w_val(gspca_dev, ET_REG1f, val: 0xff);
291 reg_w_val(gspca_dev, ET_REG20, val: 0x35);
292 reg_w_val(gspca_dev, ET_REG21, val: 0x01);
293 reg_w_val(gspca_dev, ET_REG22, val: 0x00);
294 reg_w_val(gspca_dev, ET_REG23, val: 0xff);
295 reg_w_val(gspca_dev, ET_REG24, val: 0xff);
296 reg_w_val(gspca_dev, ET_REG25, val: 0x0f);
297 /* colors setting */
298 reg_w_val(gspca_dev, index: 0x30, val: 0x11); /* 0x30 */
299 reg_w_val(gspca_dev, index: 0x31, val: 0x40);
300 reg_w_val(gspca_dev, index: 0x32, val: 0x00);
301 reg_w_val(gspca_dev, ET_O_RED, val: 0x00); /* 0x34 */
302 reg_w_val(gspca_dev, ET_O_GREEN1, val: 0x00);
303 reg_w_val(gspca_dev, ET_O_BLUE, val: 0x00);
304 reg_w_val(gspca_dev, ET_O_GREEN2, val: 0x00);
305 /*************/
306 reg_w_val(gspca_dev, ET_G_RED, val: 0x80); /* 0x4d */
307 reg_w_val(gspca_dev, ET_G_GREEN1, val: 0x80);
308 reg_w_val(gspca_dev, ET_G_BLUE, val: 0x80);
309 reg_w_val(gspca_dev, ET_G_GREEN2, val: 0x80);
310 reg_w_val(gspca_dev, ET_G_GR_H, val: 0x00);
311 reg_w_val(gspca_dev, ET_G_GB_H, val: 0x00); /* 0x52 */
312 /* Window control registers */
313 reg_w_val(gspca_dev, index: 0x61, val: 0x80); /* use cmc_out */
314 reg_w_val(gspca_dev, index: 0x62, val: 0x02);
315 reg_w_val(gspca_dev, index: 0x63, val: 0x03);
316 reg_w_val(gspca_dev, index: 0x64, val: 0x14);
317 reg_w_val(gspca_dev, index: 0x65, val: 0x0e);
318 reg_w_val(gspca_dev, index: 0x66, val: 0x02);
319 reg_w_val(gspca_dev, index: 0x67, val: 0x02);
320
321 /**************************************/
322 reg_w_val(gspca_dev, ET_SYNCHRO, val: 0x8f); /* 0x68 */
323 reg_w_val(gspca_dev, ET_STARTX, val: 0x69); /* 0x6a //0x69 */
324 reg_w_val(gspca_dev, ET_STARTY, val: 0x0d); /* 0x0d //0x0c */
325 reg_w_val(gspca_dev, ET_WIDTH_LOW, val: 0x80);
326 reg_w_val(gspca_dev, ET_HEIGTH_LOW, val: 0xe0);
327 reg_w_val(gspca_dev, ET_W_H_HEIGTH, val: 0x60); /* 6d */
328 reg_w_val(gspca_dev, ET_REG6e, val: 0x86);
329 reg_w_val(gspca_dev, ET_REG6f, val: 0x01);
330 reg_w_val(gspca_dev, ET_REG70, val: 0x26);
331 reg_w_val(gspca_dev, ET_REG71, val: 0x7a);
332 reg_w_val(gspca_dev, ET_REG72, val: 0x01);
333 /* Clock Pattern registers ***************** */
334 reg_w_val(gspca_dev, ET_REG73, val: 0x00);
335 reg_w_val(gspca_dev, ET_REG74, val: 0x18); /* 0x28 */
336 reg_w_val(gspca_dev, ET_REG75, val: 0x0f); /* 0x01 */
337 /**********************************************/
338 reg_w_val(gspca_dev, index: 0x8a, val: 0x20);
339 reg_w_val(gspca_dev, index: 0x8d, val: 0x0f);
340 reg_w_val(gspca_dev, index: 0x8e, val: 0x08);
341 /**************************************/
342 reg_w_val(gspca_dev, index: 0x03, val: 0x08);
343 reg_w_val(gspca_dev, ET_PXL_CLK, val: 0x03);
344 reg_w_val(gspca_dev, index: 0x81, val: 0xff);
345 reg_w_val(gspca_dev, index: 0x80, val: 0x00);
346 reg_w_val(gspca_dev, index: 0x81, val: 0xff);
347 reg_w_val(gspca_dev, index: 0x80, val: 0x20);
348 reg_w_val(gspca_dev, index: 0x03, val: 0x01);
349 reg_w_val(gspca_dev, index: 0x03, val: 0x00);
350 reg_w_val(gspca_dev, index: 0x03, val: 0x08);
351 /********************************************/
352
353/* reg_r(gspca_dev, ET_I2C_BASE, 1);
354 always 0x40 as the pas106 ??? */
355 /* set the sensor */
356 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
357 value = 0x04; /* 320 */
358 else /* 640 */
359 value = 0x1e; /* 0x17 * setting PixelClock
360 * 0x03 mean 24/(3+1) = 6 Mhz
361 * 0x05 -> 24/(5+1) = 4 Mhz
362 * 0x0b -> 24/(11+1) = 2 Mhz
363 * 0x17 -> 24/(23+1) = 1 Mhz
364 */
365 reg_w_val(gspca_dev, ET_PXL_CLK, val: value);
366 /* now set by fifo the FormatLine setting */
367 reg_w(gspca_dev, index: 0x62, buffer: FormLine, len: 6);
368
369 /* set exposure times [ 0..0x78] 0->longvalue 0x78->shortvalue */
370 reg_w_val(gspca_dev, index: 0x81, val: 0x47); /* 0x47; */
371 reg_w_val(gspca_dev, index: 0x80, val: 0x40); /* 0x40; */
372 /* Pedro change */
373 /* Brightness change Brith+ decrease value */
374 /* Brigth- increase value */
375 /* original value = 0x70; */
376 reg_w_val(gspca_dev, index: 0x81, val: 0x30); /* 0x20; - set brightness */
377 reg_w_val(gspca_dev, index: 0x80, val: 0x20); /* 0x20; */
378}
379
380static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
381{
382 int i;
383
384 for (i = 0; i < 4; i++)
385 reg_w_val(gspca_dev, ET_O_RED + i, val);
386}
387
388static void setcontrast(struct gspca_dev *gspca_dev, s32 val)
389{
390 __u8 RGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
391
392 memset(RGBG, val, sizeof(RGBG) - 2);
393 reg_w(gspca_dev, ET_G_RED, buffer: RGBG, len: 6);
394}
395
396static void setcolors(struct gspca_dev *gspca_dev, s32 val)
397{
398 struct sd *sd = (struct sd *) gspca_dev;
399 __u8 I2cc[] = { 0x05, 0x02, 0x02, 0x05, 0x0d };
400 __u8 i2cflags = 0x01;
401 /* __u8 green = 0; */
402
403 I2cc[3] = val; /* red */
404 I2cc[0] = 15 - val; /* blue */
405 /* green = 15 - ((((7*I2cc[0]) >> 2 ) + I2cc[3]) >> 1); */
406 /* I2cc[1] = I2cc[2] = green; */
407 if (sd->sensor == SENSOR_PAS106) {
408 i2c_w(gspca_dev, PAS106_REG13, buffer: &i2cflags, len: 1, mode: 3);
409 i2c_w(gspca_dev, PAS106_REG9, buffer: I2cc, len: sizeof I2cc, mode: 1);
410 }
411}
412
413static s32 getcolors(struct gspca_dev *gspca_dev)
414{
415 struct sd *sd = (struct sd *) gspca_dev;
416
417 if (sd->sensor == SENSOR_PAS106) {
418/* i2c_r(gspca_dev, PAS106_REG9); * blue */
419 i2c_r(gspca_dev, PAS106_REG9 + 3); /* red */
420 return gspca_dev->usb_buf[0] & 0x0f;
421 }
422 return 0;
423}
424
425static void setautogain(struct gspca_dev *gspca_dev)
426{
427 struct sd *sd = (struct sd *) gspca_dev;
428
429 if (sd->autogain)
430 sd->ag_cnt = AG_CNT_START;
431 else
432 sd->ag_cnt = -1;
433}
434
435static void Et_init1(struct gspca_dev *gspca_dev)
436{
437 __u8 value;
438/* __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0x22, 0xac, 0x00, 0x01, 0x00}; */
439 __u8 I2c0[] = { 0x0a, 0x12, 0x05, 0x6d, 0xcd, 0x00, 0x01, 0x00 };
440 /* try 1/120 0x6d 0xcd 0x40 */
441/* __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0xfe, 0xfe, 0xc0, 0x01, 0x00};
442 * 1/60000 hmm ?? */
443
444 gspca_dbg(gspca_dev, D_STREAM, "Open Init1 ET\n\n");
445 reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, val: 7);
446 reg_r(gspca_dev, ET_GPIO_IN, len: 1);
447 reg_w_val(gspca_dev, ET_RESET_ALL, val: 1);
448 reg_w_val(gspca_dev, ET_RESET_ALL, val: 0);
449 reg_w_val(gspca_dev, ET_ClCK, val: 0x10);
450 reg_w_val(gspca_dev, ET_CTRL, val: 0x19);
451 /* compression et subsampling */
452 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
453 value = ET_COMP_VAL1;
454 else
455 value = ET_COMP_VAL0;
456 gspca_dbg(gspca_dev, D_STREAM, "Open mode %d Compression %d\n",
457 gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv,
458 value);
459 reg_w_val(gspca_dev, ET_COMP, val: value);
460 reg_w_val(gspca_dev, ET_MAXQt, val: 0x1d);
461 reg_w_val(gspca_dev, ET_MINQt, val: 0x02);
462 /* undocumented registers */
463 reg_w_val(gspca_dev, ET_REG1d, val: 0xff);
464 reg_w_val(gspca_dev, ET_REG1e, val: 0xff);
465 reg_w_val(gspca_dev, ET_REG1f, val: 0xff);
466 reg_w_val(gspca_dev, ET_REG20, val: 0x35);
467 reg_w_val(gspca_dev, ET_REG21, val: 0x01);
468 reg_w_val(gspca_dev, ET_REG22, val: 0x00);
469 reg_w_val(gspca_dev, ET_REG23, val: 0xf7);
470 reg_w_val(gspca_dev, ET_REG24, val: 0xff);
471 reg_w_val(gspca_dev, ET_REG25, val: 0x07);
472 /* colors setting */
473 reg_w_val(gspca_dev, ET_G_RED, val: 0x80);
474 reg_w_val(gspca_dev, ET_G_GREEN1, val: 0x80);
475 reg_w_val(gspca_dev, ET_G_BLUE, val: 0x80);
476 reg_w_val(gspca_dev, ET_G_GREEN2, val: 0x80);
477 reg_w_val(gspca_dev, ET_G_GR_H, val: 0x00);
478 reg_w_val(gspca_dev, ET_G_GB_H, val: 0x00);
479 /* Window control registers */
480 reg_w_val(gspca_dev, ET_SYNCHRO, val: 0xf0);
481 reg_w_val(gspca_dev, ET_STARTX, val: 0x56); /* 0x56 */
482 reg_w_val(gspca_dev, ET_STARTY, val: 0x05); /* 0x04 */
483 reg_w_val(gspca_dev, ET_WIDTH_LOW, val: 0x60);
484 reg_w_val(gspca_dev, ET_HEIGTH_LOW, val: 0x20);
485 reg_w_val(gspca_dev, ET_W_H_HEIGTH, val: 0x50);
486 reg_w_val(gspca_dev, ET_REG6e, val: 0x86);
487 reg_w_val(gspca_dev, ET_REG6f, val: 0x01);
488 reg_w_val(gspca_dev, ET_REG70, val: 0x86);
489 reg_w_val(gspca_dev, ET_REG71, val: 0x14);
490 reg_w_val(gspca_dev, ET_REG72, val: 0x00);
491 /* Clock Pattern registers */
492 reg_w_val(gspca_dev, ET_REG73, val: 0x00);
493 reg_w_val(gspca_dev, ET_REG74, val: 0x00);
494 reg_w_val(gspca_dev, ET_REG75, val: 0x0a);
495 reg_w_val(gspca_dev, ET_I2C_CLK, val: 0x04);
496 reg_w_val(gspca_dev, ET_PXL_CLK, val: 0x01);
497 /* set the sensor */
498 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
499 I2c0[0] = 0x06;
500 i2c_w(gspca_dev, PAS106_REG2, buffer: I2c0, len: sizeof I2c0, mode: 1);
501 i2c_w(gspca_dev, PAS106_REG9, buffer: I2c2, len: sizeof I2c2, mode: 1);
502 value = 0x06;
503 i2c_w(gspca_dev, PAS106_REG2, buffer: &value, len: 1, mode: 1);
504 i2c_w(gspca_dev, PAS106_REG3, buffer: I2c3, len: sizeof I2c3, mode: 1);
505 /* value = 0x1f; */
506 value = 0x04;
507 i2c_w(gspca_dev, PAS106_REG0e, buffer: &value, len: 1, mode: 1);
508 } else {
509 I2c0[0] = 0x0a;
510
511 i2c_w(gspca_dev, PAS106_REG2, buffer: I2c0, len: sizeof I2c0, mode: 1);
512 i2c_w(gspca_dev, PAS106_REG9, buffer: I2c2, len: sizeof I2c2, mode: 1);
513 value = 0x0a;
514 i2c_w(gspca_dev, PAS106_REG2, buffer: &value, len: 1, mode: 1);
515 i2c_w(gspca_dev, PAS106_REG3, buffer: I2c3, len: sizeof I2c3, mode: 1);
516 value = 0x04;
517 /* value = 0x10; */
518 i2c_w(gspca_dev, PAS106_REG0e, buffer: &value, len: 1, mode: 1);
519 /* bit 2 enable bit 1:2 select 0 1 2 3
520 value = 0x07; * curve 0 *
521 i2c_w(gspca_dev, PAS106_REG0f, &value, 1, 1);
522 */
523 }
524
525/* value = 0x01; */
526/* value = 0x22; */
527/* i2c_w(gspca_dev, PAS106_REG5, &value, 1, 1); */
528 /* magnetude and sign bit for DAC */
529 i2c_w(gspca_dev, PAS106_REG7, buffer: I2c4, len: sizeof I2c4, mode: 1);
530 /* now set by fifo the whole colors setting */
531 reg_w(gspca_dev, ET_G_RED, buffer: GainRGBG, len: 6);
532 setcolors(gspca_dev, val: getcolors(gspca_dev));
533}
534
535/* this function is called at probe time */
536static int sd_config(struct gspca_dev *gspca_dev,
537 const struct usb_device_id *id)
538{
539 struct sd *sd = (struct sd *) gspca_dev;
540 struct cam *cam;
541
542 cam = &gspca_dev->cam;
543 sd->sensor = id->driver_info;
544 if (sd->sensor == SENSOR_PAS106) {
545 cam->cam_mode = sif_mode;
546 cam->nmodes = ARRAY_SIZE(sif_mode);
547 } else {
548 cam->cam_mode = vga_mode;
549 cam->nmodes = ARRAY_SIZE(vga_mode);
550 }
551 sd->ag_cnt = -1;
552 return 0;
553}
554
555/* this function is called at probe and resume time */
556static int sd_init(struct gspca_dev *gspca_dev)
557{
558 struct sd *sd = (struct sd *) gspca_dev;
559
560 if (sd->sensor == SENSOR_PAS106)
561 Et_init1(gspca_dev);
562 else
563 Et_init2(gspca_dev);
564 reg_w_val(gspca_dev, ET_RESET_ALL, val: 0x08);
565 et_video(gspca_dev, on: 0); /* video off */
566 return 0;
567}
568
569/* -- start the camera -- */
570static int sd_start(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
579 setautogain(gspca_dev);
580
581 reg_w_val(gspca_dev, ET_RESET_ALL, val: 0x08);
582 et_video(gspca_dev, on: 1); /* video on */
583 return 0;
584}
585
586static void sd_stopN(struct gspca_dev *gspca_dev)
587{
588 et_video(gspca_dev, on: 0); /* video off */
589}
590
591static __u8 Et_getgainG(struct gspca_dev *gspca_dev)
592{
593 struct sd *sd = (struct sd *) gspca_dev;
594
595 if (sd->sensor == SENSOR_PAS106) {
596 i2c_r(gspca_dev, PAS106_REG0e);
597 gspca_dbg(gspca_dev, D_CONF, "Etoms gain G %d\n",
598 gspca_dev->usb_buf[0]);
599 return gspca_dev->usb_buf[0];
600 }
601 return 0x1f;
602}
603
604static void Et_setgainG(struct gspca_dev *gspca_dev, __u8 gain)
605{
606 struct sd *sd = (struct sd *) gspca_dev;
607
608 if (sd->sensor == SENSOR_PAS106) {
609 __u8 i2cflags = 0x01;
610
611 i2c_w(gspca_dev, PAS106_REG13, buffer: &i2cflags, len: 1, mode: 3);
612 i2c_w(gspca_dev, PAS106_REG0e, buffer: &gain, len: 1, mode: 1);
613 }
614}
615
616#define BLIMIT(bright) \
617 (u8)((bright > 0x1f) ? 0x1f : ((bright < 4) ? 3 : bright))
618#define LIMIT(color) \
619 (u8)((color > 0xff) ? 0xff : ((color < 0) ? 0 : color))
620
621static void do_autogain(struct gspca_dev *gspca_dev)
622{
623 struct sd *sd = (struct sd *) gspca_dev;
624 __u8 luma;
625 __u8 luma_mean = 128;
626 __u8 luma_delta = 20;
627 __u8 spring = 4;
628 int Gbright;
629 __u8 r, g, b;
630
631 if (sd->ag_cnt < 0)
632 return;
633 if (--sd->ag_cnt >= 0)
634 return;
635 sd->ag_cnt = AG_CNT_START;
636
637 Gbright = Et_getgainG(gspca_dev);
638 reg_r(gspca_dev, ET_LUMA_CENTER, len: 4);
639 g = (gspca_dev->usb_buf[0] + gspca_dev->usb_buf[3]) >> 1;
640 r = gspca_dev->usb_buf[1];
641 b = gspca_dev->usb_buf[2];
642 r = ((r << 8) - (r << 4) - (r << 3)) >> 10;
643 b = ((b << 7) >> 10);
644 g = ((g << 9) + (g << 7) + (g << 5)) >> 10;
645 luma = LIMIT(r + g + b);
646 gspca_dbg(gspca_dev, D_FRAM, "Etoms luma G %d\n", luma);
647 if (luma < luma_mean - luma_delta || luma > luma_mean + luma_delta) {
648 Gbright += (luma_mean - luma) >> spring;
649 Gbright = BLIMIT(Gbright);
650 gspca_dbg(gspca_dev, D_FRAM, "Etoms Gbright %d\n", Gbright);
651 Et_setgainG(gspca_dev, gain: (__u8) Gbright);
652 }
653}
654
655#undef BLIMIT
656#undef LIMIT
657
658static void sd_pkt_scan(struct gspca_dev *gspca_dev,
659 u8 *data, /* isoc packet */
660 int len) /* iso packet length */
661{
662 int seqframe;
663
664 seqframe = data[0] & 0x3f;
665 len = (int) (((data[0] & 0xc0) << 2) | data[1]);
666 if (seqframe == 0x3f) {
667 gspca_dbg(gspca_dev, D_FRAM,
668 "header packet found datalength %d !!\n", len);
669 gspca_dbg(gspca_dev, D_FRAM, "G %d R %d G %d B %d",
670 data[2], data[3], data[4], data[5]);
671 data += 30;
672 /* don't change datalength as the chips provided it */
673 gspca_frame_add(gspca_dev, packet_type: LAST_PACKET, NULL, len: 0);
674 gspca_frame_add(gspca_dev, packet_type: FIRST_PACKET, data, len);
675 return;
676 }
677 if (len) {
678 data += 8;
679 gspca_frame_add(gspca_dev, packet_type: INTER_PACKET, data, len);
680 } else { /* Drop Packet */
681 gspca_dev->last_packet_type = DISCARD_PACKET;
682 }
683}
684
685static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
686{
687 struct gspca_dev *gspca_dev =
688 container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
689 struct sd *sd = (struct sd *)gspca_dev;
690
691 gspca_dev->usb_err = 0;
692
693 if (!gspca_dev->streaming)
694 return 0;
695
696 switch (ctrl->id) {
697 case V4L2_CID_BRIGHTNESS:
698 setbrightness(gspca_dev, val: ctrl->val);
699 break;
700 case V4L2_CID_CONTRAST:
701 setcontrast(gspca_dev, val: ctrl->val);
702 break;
703 case V4L2_CID_SATURATION:
704 setcolors(gspca_dev, val: ctrl->val);
705 break;
706 case V4L2_CID_AUTOGAIN:
707 sd->autogain = ctrl->val;
708 setautogain(gspca_dev);
709 break;
710 }
711 return gspca_dev->usb_err;
712}
713
714static const struct v4l2_ctrl_ops sd_ctrl_ops = {
715 .s_ctrl = sd_s_ctrl,
716};
717
718static int sd_init_controls(struct gspca_dev *gspca_dev)
719{
720 struct sd *sd = (struct sd *)gspca_dev;
721 struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
722
723 gspca_dev->vdev.ctrl_handler = hdl;
724 v4l2_ctrl_handler_init(hdl, 4);
725 v4l2_ctrl_new_std(hdl, ops: &sd_ctrl_ops,
726 V4L2_CID_BRIGHTNESS, min: 1, max: 127, step: 1, def: 63);
727 v4l2_ctrl_new_std(hdl, ops: &sd_ctrl_ops,
728 V4L2_CID_CONTRAST, min: 0, max: 255, step: 1, def: 127);
729 if (sd->sensor == SENSOR_PAS106)
730 v4l2_ctrl_new_std(hdl, ops: &sd_ctrl_ops,
731 V4L2_CID_SATURATION, min: 0, max: 15, step: 1, def: 7);
732 v4l2_ctrl_new_std(hdl, ops: &sd_ctrl_ops,
733 V4L2_CID_AUTOGAIN, min: 0, max: 1, step: 1, def: 1);
734 if (hdl->error) {
735 pr_err("Could not initialize controls\n");
736 return hdl->error;
737 }
738 return 0;
739}
740
741/* sub-driver description */
742static const struct sd_desc sd_desc = {
743 .name = MODULE_NAME,
744 .config = sd_config,
745 .init = sd_init,
746 .init_controls = sd_init_controls,
747 .start = sd_start,
748 .stopN = sd_stopN,
749 .pkt_scan = sd_pkt_scan,
750 .dq_callback = do_autogain,
751};
752
753/* -- module initialisation -- */
754static const struct usb_device_id device_table[] = {
755 {USB_DEVICE(0x102c, 0x6151), .driver_info = SENSOR_PAS106},
756 {USB_DEVICE(0x102c, 0x6251), .driver_info = SENSOR_TAS5130CXX},
757 {}
758};
759
760MODULE_DEVICE_TABLE(usb, device_table);
761
762/* -- device connect -- */
763static int sd_probe(struct usb_interface *intf,
764 const struct usb_device_id *id)
765{
766 return gspca_dev_probe(intf, id, sd_desc: &sd_desc, dev_size: sizeof(struct sd),
767 THIS_MODULE);
768}
769
770static struct usb_driver sd_driver = {
771 .name = MODULE_NAME,
772 .id_table = device_table,
773 .probe = sd_probe,
774 .disconnect = gspca_disconnect,
775#ifdef CONFIG_PM
776 .suspend = gspca_suspend,
777 .resume = gspca_resume,
778 .reset_resume = gspca_resume,
779#endif
780};
781
782module_usb_driver(sd_driver);
783

source code of linux/drivers/media/usb/gspca/etoms.c