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
14 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
15 MODULE_DESCRIPTION("Etoms USB Camera Driver");
16 MODULE_LICENSE("GPL");
17
18 /* specific webcam descriptor */
19 struct 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
31 static 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
44 static 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
138 static const __u8 GainRGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
139
140 static const __u8 I2c2[] = { 0x08, 0x08, 0x08, 0x08, 0x0d };
141
142 static const __u8 I2c3[] = { 0x12, 0x05 };
143
144 static const __u8 I2c4[] = { 0x41, 0x08 };
145
146 /* read 'len' bytes to gspca_dev->usb_buf */
reg_r(struct gspca_dev * gspca_dev,__u16 index,__u16 len)147 static 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 0,
161 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
162 0,
163 index, gspca_dev->usb_buf, len, 500);
164 gspca_dbg(gspca_dev, D_USBI, "reg read [%02x] -> %02x ..\n",
165 index, gspca_dev->usb_buf[0]);
166 }
167
reg_w_val(struct gspca_dev * gspca_dev,__u16 index,__u8 val)168 static 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 0,
178 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
179 0,
180 index, gspca_dev->usb_buf, 1, 500);
181 }
182
reg_w(struct gspca_dev * gspca_dev,__u16 index,const __u8 * buffer,__u16 len)183 static 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 0,
201 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
202 0, index, gspca_dev->usb_buf, len, 500);
203 }
204
i2c_w(struct gspca_dev * gspca_dev,__u8 reg,const __u8 * buffer,int len,__u8 mode)205 static 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, 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, ptchcount);
219 /* set the register base */
220 reg_w_val(gspca_dev, ET_I2C_REG, reg);
221 while (--len >= 0)
222 reg_w_val(gspca_dev, ET_I2C_DATA0 + len, buffer[len]);
223 return 0;
224 }
225
i2c_r(struct gspca_dev * gspca_dev,__u8 reg)226 static 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, 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, 0x11);
234 reg_w_val(gspca_dev, ET_I2C_REG, reg); /* set the register base */
235 reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x02); /* prefetch */
236 reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x00);
237 reg_r(gspca_dev, ET_I2C_DATA0, 1); /* read one byte */
238 return 0;
239 }
240
Et_WaitStatus(struct gspca_dev * gspca_dev)241 static int Et_WaitStatus(struct gspca_dev *gspca_dev)
242 {
243 int retry = 10;
244
245 while (retry--) {
246 reg_r(gspca_dev, ET_ClCK, 1);
247 if (gspca_dev->usb_buf[0] != 0)
248 return 1;
249 }
250 return 0;
251 }
252
et_video(struct gspca_dev * gspca_dev,int on)253 static 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 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
Et_init2(struct gspca_dev * gspca_dev)267 static 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, 0x2f);
274 reg_w_val(gspca_dev, ET_GPIO_OUT, 0x10);
275 reg_r(gspca_dev, ET_GPIO_IN, 1);
276 reg_w_val(gspca_dev, ET_ClCK, 0x14); /* 0x14 // 0x16 enabled pattern */
277 reg_w_val(gspca_dev, ET_CTRL, 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, value);
285 reg_w_val(gspca_dev, ET_MAXQt, 0x1f);
286 reg_w_val(gspca_dev, ET_MINQt, 0x04);
287 /* undocumented registers */
288 reg_w_val(gspca_dev, ET_REG1d, 0xff);
289 reg_w_val(gspca_dev, ET_REG1e, 0xff);
290 reg_w_val(gspca_dev, ET_REG1f, 0xff);
291 reg_w_val(gspca_dev, ET_REG20, 0x35);
292 reg_w_val(gspca_dev, ET_REG21, 0x01);
293 reg_w_val(gspca_dev, ET_REG22, 0x00);
294 reg_w_val(gspca_dev, ET_REG23, 0xff);
295 reg_w_val(gspca_dev, ET_REG24, 0xff);
296 reg_w_val(gspca_dev, ET_REG25, 0x0f);
297 /* colors setting */
298 reg_w_val(gspca_dev, 0x30, 0x11); /* 0x30 */
299 reg_w_val(gspca_dev, 0x31, 0x40);
300 reg_w_val(gspca_dev, 0x32, 0x00);
301 reg_w_val(gspca_dev, ET_O_RED, 0x00); /* 0x34 */
302 reg_w_val(gspca_dev, ET_O_GREEN1, 0x00);
303 reg_w_val(gspca_dev, ET_O_BLUE, 0x00);
304 reg_w_val(gspca_dev, ET_O_GREEN2, 0x00);
305 /*************/
306 reg_w_val(gspca_dev, ET_G_RED, 0x80); /* 0x4d */
307 reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
308 reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
309 reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
310 reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
311 reg_w_val(gspca_dev, ET_G_GB_H, 0x00); /* 0x52 */
312 /* Window control registers */
313 reg_w_val(gspca_dev, 0x61, 0x80); /* use cmc_out */
314 reg_w_val(gspca_dev, 0x62, 0x02);
315 reg_w_val(gspca_dev, 0x63, 0x03);
316 reg_w_val(gspca_dev, 0x64, 0x14);
317 reg_w_val(gspca_dev, 0x65, 0x0e);
318 reg_w_val(gspca_dev, 0x66, 0x02);
319 reg_w_val(gspca_dev, 0x67, 0x02);
320
321 /**************************************/
322 reg_w_val(gspca_dev, ET_SYNCHRO, 0x8f); /* 0x68 */
323 reg_w_val(gspca_dev, ET_STARTX, 0x69); /* 0x6a //0x69 */
324 reg_w_val(gspca_dev, ET_STARTY, 0x0d); /* 0x0d //0x0c */
325 reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x80);
326 reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0xe0);
327 reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x60); /* 6d */
328 reg_w_val(gspca_dev, ET_REG6e, 0x86);
329 reg_w_val(gspca_dev, ET_REG6f, 0x01);
330 reg_w_val(gspca_dev, ET_REG70, 0x26);
331 reg_w_val(gspca_dev, ET_REG71, 0x7a);
332 reg_w_val(gspca_dev, ET_REG72, 0x01);
333 /* Clock Pattern registers ***************** */
334 reg_w_val(gspca_dev, ET_REG73, 0x00);
335 reg_w_val(gspca_dev, ET_REG74, 0x18); /* 0x28 */
336 reg_w_val(gspca_dev, ET_REG75, 0x0f); /* 0x01 */
337 /**********************************************/
338 reg_w_val(gspca_dev, 0x8a, 0x20);
339 reg_w_val(gspca_dev, 0x8d, 0x0f);
340 reg_w_val(gspca_dev, 0x8e, 0x08);
341 /**************************************/
342 reg_w_val(gspca_dev, 0x03, 0x08);
343 reg_w_val(gspca_dev, ET_PXL_CLK, 0x03);
344 reg_w_val(gspca_dev, 0x81, 0xff);
345 reg_w_val(gspca_dev, 0x80, 0x00);
346 reg_w_val(gspca_dev, 0x81, 0xff);
347 reg_w_val(gspca_dev, 0x80, 0x20);
348 reg_w_val(gspca_dev, 0x03, 0x01);
349 reg_w_val(gspca_dev, 0x03, 0x00);
350 reg_w_val(gspca_dev, 0x03, 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, value);
366 /* now set by fifo the FormatLine setting */
367 reg_w(gspca_dev, 0x62, FormLine, 6);
368
369 /* set exposure times [ 0..0x78] 0->longvalue 0x78->shortvalue */
370 reg_w_val(gspca_dev, 0x81, 0x47); /* 0x47; */
371 reg_w_val(gspca_dev, 0x80, 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, 0x81, 0x30); /* 0x20; - set brightness */
377 reg_w_val(gspca_dev, 0x80, 0x20); /* 0x20; */
378 }
379
setbrightness(struct gspca_dev * gspca_dev,s32 val)380 static 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
setcontrast(struct gspca_dev * gspca_dev,s32 val)388 static 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, RGBG, 6);
394 }
395
setcolors(struct gspca_dev * gspca_dev,s32 val)396 static 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, &i2cflags, 1, 3);
409 i2c_w(gspca_dev, PAS106_REG9, I2cc, sizeof I2cc, 1);
410 }
411 }
412
getcolors(struct gspca_dev * gspca_dev)413 static 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
setautogain(struct gspca_dev * gspca_dev)425 static 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
Et_init1(struct gspca_dev * gspca_dev)435 static 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, 7);
446 reg_r(gspca_dev, ET_GPIO_IN, 1);
447 reg_w_val(gspca_dev, ET_RESET_ALL, 1);
448 reg_w_val(gspca_dev, ET_RESET_ALL, 0);
449 reg_w_val(gspca_dev, ET_ClCK, 0x10);
450 reg_w_val(gspca_dev, ET_CTRL, 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, value);
460 reg_w_val(gspca_dev, ET_MAXQt, 0x1d);
461 reg_w_val(gspca_dev, ET_MINQt, 0x02);
462 /* undocumented registers */
463 reg_w_val(gspca_dev, ET_REG1d, 0xff);
464 reg_w_val(gspca_dev, ET_REG1e, 0xff);
465 reg_w_val(gspca_dev, ET_REG1f, 0xff);
466 reg_w_val(gspca_dev, ET_REG20, 0x35);
467 reg_w_val(gspca_dev, ET_REG21, 0x01);
468 reg_w_val(gspca_dev, ET_REG22, 0x00);
469 reg_w_val(gspca_dev, ET_REG23, 0xf7);
470 reg_w_val(gspca_dev, ET_REG24, 0xff);
471 reg_w_val(gspca_dev, ET_REG25, 0x07);
472 /* colors setting */
473 reg_w_val(gspca_dev, ET_G_RED, 0x80);
474 reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
475 reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
476 reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
477 reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
478 reg_w_val(gspca_dev, ET_G_GB_H, 0x00);
479 /* Window control registers */
480 reg_w_val(gspca_dev, ET_SYNCHRO, 0xf0);
481 reg_w_val(gspca_dev, ET_STARTX, 0x56); /* 0x56 */
482 reg_w_val(gspca_dev, ET_STARTY, 0x05); /* 0x04 */
483 reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x60);
484 reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0x20);
485 reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x50);
486 reg_w_val(gspca_dev, ET_REG6e, 0x86);
487 reg_w_val(gspca_dev, ET_REG6f, 0x01);
488 reg_w_val(gspca_dev, ET_REG70, 0x86);
489 reg_w_val(gspca_dev, ET_REG71, 0x14);
490 reg_w_val(gspca_dev, ET_REG72, 0x00);
491 /* Clock Pattern registers */
492 reg_w_val(gspca_dev, ET_REG73, 0x00);
493 reg_w_val(gspca_dev, ET_REG74, 0x00);
494 reg_w_val(gspca_dev, ET_REG75, 0x0a);
495 reg_w_val(gspca_dev, ET_I2C_CLK, 0x04);
496 reg_w_val(gspca_dev, ET_PXL_CLK, 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, I2c0, sizeof I2c0, 1);
501 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
502 value = 0x06;
503 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
504 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
505 /* value = 0x1f; */
506 value = 0x04;
507 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);
508 } else {
509 I2c0[0] = 0x0a;
510
511 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);
512 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
513 value = 0x0a;
514 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
515 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
516 value = 0x04;
517 /* value = 0x10; */
518 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 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, I2c4, sizeof I2c4, 1);
530 /* now set by fifo the whole colors setting */
531 reg_w(gspca_dev, ET_G_RED, GainRGBG, 6);
532 setcolors(gspca_dev, getcolors(gspca_dev));
533 }
534
535 /* this function is called at probe time */
sd_config(struct gspca_dev * gspca_dev,const struct usb_device_id * id)536 static 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 */
sd_init(struct gspca_dev * gspca_dev)556 static 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, 0x08);
565 et_video(gspca_dev, 0); /* video off */
566 return 0;
567 }
568
569 /* -- start the camera -- */
sd_start(struct gspca_dev * gspca_dev)570 static 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, 0x08);
582 et_video(gspca_dev, 1); /* video on */
583 return 0;
584 }
585
sd_stopN(struct gspca_dev * gspca_dev)586 static void sd_stopN(struct gspca_dev *gspca_dev)
587 {
588 et_video(gspca_dev, 0); /* video off */
589 }
590
Et_getgainG(struct gspca_dev * gspca_dev)591 static __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
Et_setgainG(struct gspca_dev * gspca_dev,__u8 gain)604 static 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, &i2cflags, 1, 3);
612 i2c_w(gspca_dev, PAS106_REG0e, &gain, 1, 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
do_autogain(struct gspca_dev * gspca_dev)621 static 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, 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, (__u8) Gbright);
652 }
653 }
654
655 #undef BLIMIT
656 #undef LIMIT
657
sd_pkt_scan(struct gspca_dev * gspca_dev,u8 * data,int len)658 static 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, LAST_PACKET, NULL, 0);
674 gspca_frame_add(gspca_dev, FIRST_PACKET, data, len);
675 return;
676 }
677 if (len) {
678 data += 8;
679 gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
680 } else { /* Drop Packet */
681 gspca_dev->last_packet_type = DISCARD_PACKET;
682 }
683 }
684
sd_s_ctrl(struct v4l2_ctrl * ctrl)685 static 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, ctrl->val);
699 break;
700 case V4L2_CID_CONTRAST:
701 setcontrast(gspca_dev, ctrl->val);
702 break;
703 case V4L2_CID_SATURATION:
704 setcolors(gspca_dev, 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
714 static const struct v4l2_ctrl_ops sd_ctrl_ops = {
715 .s_ctrl = sd_s_ctrl,
716 };
717
sd_init_controls(struct gspca_dev * gspca_dev)718 static 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, &sd_ctrl_ops,
726 V4L2_CID_BRIGHTNESS, 1, 127, 1, 63);
727 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
728 V4L2_CID_CONTRAST, 0, 255, 1, 127);
729 if (sd->sensor == SENSOR_PAS106)
730 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
731 V4L2_CID_SATURATION, 0, 15, 1, 7);
732 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
733 V4L2_CID_AUTOGAIN, 0, 1, 1, 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 */
742 static 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 -- */
754 static 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
760 MODULE_DEVICE_TABLE(usb, device_table);
761
762 /* -- device connect -- */
sd_probe(struct usb_interface * intf,const struct usb_device_id * id)763 static int sd_probe(struct usb_interface *intf,
764 const struct usb_device_id *id)
765 {
766 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
767 THIS_MODULE);
768 }
769
770 static 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
782 module_usb_driver(sd_driver);
783