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V4L/DVB (8414): videodev/cx18: fix get_index bug and error-handling lock-ups
[deliverable/linux.git] / drivers / media / video / gspca / etoms.c
CommitLineData
6a7eba24
JFM		 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 MODULE_NAME "etoms"
22
23#include "gspca.h"
24
739570bb
JFM		 25#define DRIVER_VERSION_NUMBER KERNEL_VERSION(2, 1, 7)
26static const char version[] = "2.1.7";
6a7eba24
JFM		 27
28MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
29MODULE_DESCRIPTION("Etoms USB Camera Driver");
30MODULE_LICENSE("GPL");
31
32/* specific webcam descriptor */
33struct sd {
34 struct gspca_dev gspca_dev; /* !! must be the first item */
35
36 unsigned char brightness;
37 unsigned char contrast;
38 unsigned char colors;
39 unsigned char autogain;
40
41 char sensor;
42#define SENSOR_PAS106 0
43#define SENSOR_TAS5130CXX 1
44 signed char ag_cnt;
45#define AG_CNT_START 13
46};
47
48/* V4L2 controls supported by the driver */
49static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
50static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
51static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
52static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
53static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val);
54static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
55static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val);
56static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val);
57
58static struct ctrl sd_ctrls[] = {
6a7eba24
JFM		 59 {
60 {
61 .id = V4L2_CID_BRIGHTNESS,
62 .type = V4L2_CTRL_TYPE_INTEGER,
63 .name = "Brightness",
64 .minimum = 1,
65 .maximum = 127,
66 .step = 1,
a5ae2062
JFM		 67#define BRIGHTNESS_DEF 63
68 .default_value = BRIGHTNESS_DEF,
6a7eba24
JFM		 69 },
70 .set = sd_setbrightness,
71 .get = sd_getbrightness,
72 },
6a7eba24
JFM		 73 {
74 {
75 .id = V4L2_CID_CONTRAST,
76 .type = V4L2_CTRL_TYPE_INTEGER,
77 .name = "Contrast",
78 .minimum = 0,
79 .maximum = 255,
80 .step = 1,
a5ae2062
JFM		 81#define CONTRAST_DEF 127
82 .default_value = CONTRAST_DEF,
6a7eba24
JFM		 83 },
84 .set = sd_setcontrast,
85 .get = sd_getcontrast,
86 },
6a7eba24
JFM		 87 {
88 {
89 .id = V4L2_CID_SATURATION,
90 .type = V4L2_CTRL_TYPE_INTEGER,
91 .name = "Color",
92 .minimum = 0,
93 .maximum = 15,
94 .step = 1,
a5ae2062
JFM		 95#define COLOR_DEF 7
96 .default_value = COLOR_DEF,
6a7eba24
JFM		 97 },
98 .set = sd_setcolors,
99 .get = sd_getcolors,
100 },
6a7eba24
JFM		 101 {
102 {
103 .id = V4L2_CID_AUTOGAIN,
104 .type = V4L2_CTRL_TYPE_BOOLEAN,
105 .name = "Auto Gain",
106 .minimum = 0,
107 .maximum = 1,
108 .step = 1,
a5ae2062
JFM		 109#define AUTOGAIN_DEF 1
110 .default_value = AUTOGAIN_DEF,
6a7eba24
JFM		 111 },
112 .set = sd_setautogain,
113 .get = sd_getautogain,
114 },
115};
116
c2446b3e
JFM		 117static struct v4l2_pix_format vga_mode[] = {
118 {320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
119 .bytesperline = 320,
120 .sizeimage = 320 * 240,
121 .colorspace = V4L2_COLORSPACE_SRGB,
122 .priv = 1},
123/* {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
124 .bytesperline = 640,
125 .sizeimage = 640 * 480,
126 .colorspace = V4L2_COLORSPACE_SRGB,
127 .priv = 0}, */
6a7eba24
JFM		 128};
129
c2446b3e
JFM		 130static struct v4l2_pix_format sif_mode[] = {
131 {176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
132 .bytesperline = 176,
133 .sizeimage = 176 * 144,
134 .colorspace = V4L2_COLORSPACE_SRGB,
135 .priv = 1},
136 {352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
137 .bytesperline = 352,
138 .sizeimage = 352 * 288,
139 .colorspace = V4L2_COLORSPACE_SRGB,
140 .priv = 0},
6a7eba24
JFM		 141};
142
143#define ETOMS_ALT_SIZE_1000 12
144
145#define ET_GPIO_DIR_CTRL 0x04 /* Control IO bit[0..5] (0 in 1 out) */
146#define ET_GPIO_OUT 0x05 /* Only IO data */
147#define ET_GPIO_IN 0x06 /* Read Only IO data */
148#define ET_RESET_ALL 0x03
149#define ET_ClCK 0x01
150#define ET_CTRL 0x02 /* enable i2c OutClck Powerdown mode */
151
152#define ET_COMP 0x12 /* Compression register */
153#define ET_MAXQt 0x13
154#define ET_MINQt 0x14
155#define ET_COMP_VAL0 0x02
156#define ET_COMP_VAL1 0x03
157
158#define ET_REG1d 0x1d
159#define ET_REG1e 0x1e
160#define ET_REG1f 0x1f
161#define ET_REG20 0x20
162#define ET_REG21 0x21
163#define ET_REG22 0x22
164#define ET_REG23 0x23
165#define ET_REG24 0x24
166#define ET_REG25 0x25
167/* base registers for luma calculation */
168#define ET_LUMA_CENTER 0x39
169
170#define ET_G_RED 0x4d
171#define ET_G_GREEN1 0x4e
172#define ET_G_BLUE 0x4f
173#define ET_G_GREEN2 0x50
174#define ET_G_GR_H 0x51
175#define ET_G_GB_H 0x52
176
177#define ET_O_RED 0x34
178#define ET_O_GREEN1 0x35
179#define ET_O_BLUE 0x36
180#define ET_O_GREEN2 0x37
181
182#define ET_SYNCHRO 0x68
183#define ET_STARTX 0x69
184#define ET_STARTY 0x6a
185#define ET_WIDTH_LOW 0x6b
186#define ET_HEIGTH_LOW 0x6c
187#define ET_W_H_HEIGTH 0x6d
188
189#define ET_REG6e 0x6e /* OBW */
190#define ET_REG6f 0x6f /* OBW */
191#define ET_REG70 0x70 /* OBW_AWB */
192#define ET_REG71 0x71 /* OBW_AWB */
193#define ET_REG72 0x72 /* OBW_AWB */
194#define ET_REG73 0x73 /* Clkdelay ns */
195#define ET_REG74 0x74 /* test pattern */
196#define ET_REG75 0x75 /* test pattern */
197
198#define ET_I2C_CLK 0x8c
199#define ET_PXL_CLK 0x60
200
201#define ET_I2C_BASE 0x89
202#define ET_I2C_COUNT 0x8a
203#define ET_I2C_PREFETCH 0x8b
204#define ET_I2C_REG 0x88
205#define ET_I2C_DATA7 0x87
206#define ET_I2C_DATA6 0x86
207#define ET_I2C_DATA5 0x85
208#define ET_I2C_DATA4 0x84
209#define ET_I2C_DATA3 0x83
210#define ET_I2C_DATA2 0x82
211#define ET_I2C_DATA1 0x81
212#define ET_I2C_DATA0 0x80
213
214#define PAS106_REG2 0x02 /* pxlClk = systemClk/(reg2) */
215#define PAS106_REG3 0x03 /* line/frame H [11..4] */
216#define PAS106_REG4 0x04 /* line/frame L [3..0] */
217#define PAS106_REG5 0x05 /* exposure time line offset(default 5) */
218#define PAS106_REG6 0x06 /* exposure time pixel offset(default 6) */
219#define PAS106_REG7 0x07 /* signbit Dac (default 0) */
220#define PAS106_REG9 0x09
221#define PAS106_REG0e 0x0e /* global gain [4..0](default 0x0e) */
222#define PAS106_REG13 0x13 /* end i2c write */
223
a5ae2062 224static const __u8 GainRGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
6a7eba24 225
a5ae2062 226static const __u8 I2c2[] = { 0x08, 0x08, 0x08, 0x08, 0x0d };
6a7eba24 227
a5ae2062 228static const __u8 I2c3[] = { 0x12, 0x05 };
6a7eba24 229
a5ae2062 230static const __u8 I2c4[] = { 0x41, 0x08 };
6a7eba24 231
739570bb
JFM		 232/* read 'len' bytes to gspca_dev->usb_buf */
233static void reg_r(struct gspca_dev *gspca_dev,
234 __u16 index,
235 __u16 len)
6a7eba24 236{
739570bb
JFM		 237 struct usb_device *dev = gspca_dev->dev;
238
239#ifdef CONFIG_VIDEO_ADV_DEBUG
240 if (len > sizeof gspca_dev->usb_buf) {
241 err("reg_r: buffer overflow");
242 return;
243 }
244#endif
6a7eba24
JFM		 245 usb_control_msg(dev,
246 usb_rcvctrlpipe(dev, 0),
247 0,
248 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
739570bb
JFM		 249 0,
250 index, gspca_dev->usb_buf, len, 500);
251 PDEBUG(D_USBI, "reg read [%02x] -> %02x ..",
252 index, gspca_dev->usb_buf[0]);
6a7eba24
JFM		 253}
254
739570bb
JFM		 255static void reg_w_val(struct gspca_dev *gspca_dev,
256 __u16 index,
257 __u8 val)
a5ae2062 258{
739570bb 259 struct usb_device *dev = gspca_dev->dev;
a5ae2062 260
739570bb 261 gspca_dev->usb_buf[0] = val;
a5ae2062
JFM		 262 usb_control_msg(dev,
263 usb_sndctrlpipe(dev, 0),
264 0,
265 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
739570bb
JFM		 266 0,
267 index, gspca_dev->usb_buf, 1, 500);
a5ae2062
JFM		 268}
269
739570bb
JFM		 270static void reg_w(struct gspca_dev *gspca_dev,
271 __u16 index,
272 const __u8 *buffer,
273 __u16 len)
6a7eba24 274{
739570bb 275 struct usb_device *dev = gspca_dev->dev;
bf7f0b98 276
739570bb
JFM		 277#ifdef CONFIG_VIDEO_ADV_DEBUG
278 if (len > sizeof gspca_dev->usb_buf) {
279 err("reg_w: buffer overflow");
280 return;
281 }
282 PDEBUG(D_USBO, "reg write [%02x] = %02x..", index, *buffer);
283#endif
284 memcpy(gspca_dev->usb_buf, buffer, len);
6a7eba24
JFM		 285 usb_control_msg(dev,
286 usb_sndctrlpipe(dev, 0),
287 0,
288 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
739570bb 289 0, index, gspca_dev->usb_buf, len, 500);
6a7eba24
JFM		 290}
291
739570bb
JFM		 292static int i2c_w(struct gspca_dev *gspca_dev,
293 __u8 reg,
294 const __u8 *buffer,
295 __u16 len, __u8 mode)
6a7eba24 296{
a5ae2062
JFM		 297 /* buffer should be [D0..D7] */
298 __u8 ptchcount;
299
300 /* set the base address */
739570bb
JFM		 301 reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);
302 /* sensor base for the pas106 */
a5ae2062
JFM		 303 /* set count and prefetch */
304 ptchcount = ((len & 0x07) << 4) | (mode & 0x03);
739570bb 305 reg_w_val(gspca_dev, ET_I2C_COUNT, ptchcount);
a5ae2062 306 /* set the register base */
739570bb 307 reg_w_val(gspca_dev, ET_I2C_REG, reg);
a5ae2062 308 while (--len >= 0)
739570bb 309 reg_w_val(gspca_dev, ET_I2C_DATA0 + len, buffer[len]);
6a7eba24
JFM		 310 return 0;
311}
312
739570bb
JFM		 313static int i2c_r(struct gspca_dev *gspca_dev,
314 __u8 reg)
6a7eba24 315{
a5ae2062 316 /* set the base address */
739570bb
JFM		 317 reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);
318 /* sensor base for the pas106 */
319 /* set count and prefetch (cnd: 4 bits - mode: 4 bits) */
320 reg_w_val(gspca_dev, ET_I2C_COUNT, 0x11);
321 reg_w_val(gspca_dev, ET_I2C_REG, reg); /* set the register base */
322 reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x02); /* prefetch */
323 reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x00);
324 reg_r(gspca_dev, ET_I2C_DATA0, 1); /* read one byte */
6a7eba24
JFM		 325 return 0;
326}
327
739570bb 328static int Et_WaitStatus(struct gspca_dev *gspca_dev)
6a7eba24 329{
6a7eba24
JFM		 330 int retry = 10;
331
332 while (retry--) {
739570bb
JFM		 333 reg_r(gspca_dev, ET_ClCK, 1);
334 if (gspca_dev->usb_buf[0] != 0)
6a7eba24
JFM		 335 return 1;
336 }
337 return 0;
338}
339
739570bb
JFM		 340static int et_video(struct gspca_dev *gspca_dev,
341 int on)
6a7eba24 342{
739570bb 343 int ret;
6a7eba24 344
739570bb
JFM		 345 reg_w_val(gspca_dev, ET_GPIO_OUT,
346 on ? 0x10 /* startvideo - set Bit5 */
347 : 0); /* stopvideo */
348 ret = Et_WaitStatus(gspca_dev);
349 if (ret != 0)
a5ae2062 350 PDEBUG(D_ERR, "timeout video on/off");
739570bb 351 return ret;
6a7eba24
JFM		 352}
353
354static void Et_init2(struct gspca_dev *gspca_dev)
355{
a5ae2062 356 __u8 value;
a5ae2062 357 static const __u8 FormLine[] = { 0x84, 0x03, 0x14, 0xf4, 0x01, 0x05 };
6a7eba24
JFM		 358
359 PDEBUG(D_STREAM, "Open Init2 ET");
739570bb
JFM		 360 reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 0x2f);
361 reg_w_val(gspca_dev, ET_GPIO_OUT, 0x10);
362 reg_r(gspca_dev, ET_GPIO_IN, 1);
363 reg_w_val(gspca_dev, ET_ClCK, 0x14); /* 0x14 // 0x16 enabled pattern */
364 reg_w_val(gspca_dev, ET_CTRL, 0x1b);
6a7eba24
JFM		 365
366 /* compression et subsampling */
c2446b3e 367 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
6a7eba24
JFM		 368 value = ET_COMP_VAL1; /* 320 */
369 else
370 value = ET_COMP_VAL0; /* 640 */
739570bb
JFM		 371 reg_w_val(gspca_dev, ET_COMP, value);
372 reg_w_val(gspca_dev, ET_MAXQt, 0x1f);
373 reg_w_val(gspca_dev, ET_MINQt, 0x04);
6a7eba24 374 /* undocumented registers */
739570bb
JFM		 375 reg_w_val(gspca_dev, ET_REG1d, 0xff);
376 reg_w_val(gspca_dev, ET_REG1e, 0xff);
377 reg_w_val(gspca_dev, ET_REG1f, 0xff);
378 reg_w_val(gspca_dev, ET_REG20, 0x35);
379 reg_w_val(gspca_dev, ET_REG21, 0x01);
380 reg_w_val(gspca_dev, ET_REG22, 0x00);
381 reg_w_val(gspca_dev, ET_REG23, 0xff);
382 reg_w_val(gspca_dev, ET_REG24, 0xff);
383 reg_w_val(gspca_dev, ET_REG25, 0x0f);
6a7eba24 384 /* colors setting */
739570bb
JFM		 385 reg_w_val(gspca_dev, 0x30, 0x11); /* 0x30 */
386 reg_w_val(gspca_dev, 0x31, 0x40);
387 reg_w_val(gspca_dev, 0x32, 0x00);
388 reg_w_val(gspca_dev, ET_O_RED, 0x00); /* 0x34 */
389 reg_w_val(gspca_dev, ET_O_GREEN1, 0x00);
390 reg_w_val(gspca_dev, ET_O_BLUE, 0x00);
391 reg_w_val(gspca_dev, ET_O_GREEN2, 0x00);
6a7eba24 392 /*************/
739570bb
JFM		 393 reg_w_val(gspca_dev, ET_G_RED, 0x80); /* 0x4d */
394 reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
395 reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
396 reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
397 reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
398 reg_w_val(gspca_dev, ET_G_GB_H, 0x00); /* 0x52 */
6a7eba24 399 /* Window control registers */
739570bb
JFM		 400 reg_w_val(gspca_dev, 0x61, 0x80); /* use cmc_out */
401 reg_w_val(gspca_dev, 0x62, 0x02);
402 reg_w_val(gspca_dev, 0x63, 0x03);
403 reg_w_val(gspca_dev, 0x64, 0x14);
404 reg_w_val(gspca_dev, 0x65, 0x0e);
405 reg_w_val(gspca_dev, 0x66, 0x02);
406 reg_w_val(gspca_dev, 0x67, 0x02);
6a7eba24
JFM		 407
408 /**************************************/
739570bb
JFM		 409 reg_w_val(gspca_dev, ET_SYNCHRO, 0x8f); /* 0x68 */
410 reg_w_val(gspca_dev, ET_STARTX, 0x69); /* 0x6a //0x69 */
411 reg_w_val(gspca_dev, ET_STARTY, 0x0d); /* 0x0d //0x0c */
412 reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x80);
413 reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0xe0);
414 reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x60); /* 6d */
415 reg_w_val(gspca_dev, ET_REG6e, 0x86);
416 reg_w_val(gspca_dev, ET_REG6f, 0x01);
417 reg_w_val(gspca_dev, ET_REG70, 0x26);
418 reg_w_val(gspca_dev, ET_REG71, 0x7a);
419 reg_w_val(gspca_dev, ET_REG72, 0x01);
6a7eba24 420 /* Clock Pattern registers ***************** */
739570bb
JFM		 421 reg_w_val(gspca_dev, ET_REG73, 0x00);
422 reg_w_val(gspca_dev, ET_REG74, 0x18); /* 0x28 */
423 reg_w_val(gspca_dev, ET_REG75, 0x0f); /* 0x01 */
6a7eba24 424 /**********************************************/
739570bb
JFM		 425 reg_w_val(gspca_dev, 0x8a, 0x20);
426 reg_w_val(gspca_dev, 0x8d, 0x0f);
427 reg_w_val(gspca_dev, 0x8e, 0x08);
6a7eba24 428 /**************************************/
739570bb
JFM		 429 reg_w_val(gspca_dev, 0x03, 0x08);
430 reg_w_val(gspca_dev, ET_PXL_CLK, 0x03);
431 reg_w_val(gspca_dev, 0x81, 0xff);
432 reg_w_val(gspca_dev, 0x80, 0x00);
433 reg_w_val(gspca_dev, 0x81, 0xff);
434 reg_w_val(gspca_dev, 0x80, 0x20);
435 reg_w_val(gspca_dev, 0x03, 0x01);
436 reg_w_val(gspca_dev, 0x03, 0x00);
437 reg_w_val(gspca_dev, 0x03, 0x08);
6a7eba24
JFM		 438 /********************************************/
439
739570bb 440/* reg_r(gspca_dev, ET_I2C_BASE, 1);
6a7eba24
JFM		 441 always 0x40 as the pas106 ??? */
442 /* set the sensor */
c2446b3e 443 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
a5ae2062
JFM		 444 value = 0x04; /* 320 */
445 else /* 640 */
446 value = 0x1e; /* 0x17 * setting PixelClock
447 * 0x03 mean 24/(3+1) = 6 Mhz
448 * 0x05 -> 24/(5+1) = 4 Mhz
449 * 0x0b -> 24/(11+1) = 2 Mhz
450 * 0x17 -> 24/(23+1) = 1 Mhz
451 */
739570bb 452 reg_w_val(gspca_dev, ET_PXL_CLK, value);
a5ae2062 453 /* now set by fifo the FormatLine setting */
739570bb 454 reg_w(gspca_dev, 0x62, FormLine, 6);
6a7eba24
JFM		 455
456 /* set exposure times [ 0..0x78] 0->longvalue 0x78->shortvalue */
739570bb
JFM		 457 reg_w_val(gspca_dev, 0x81, 0x47); /* 0x47; */
458 reg_w_val(gspca_dev, 0x80, 0x40); /* 0x40; */
6a7eba24
JFM		 459 /* Pedro change */
460 /* Brightness change Brith+ decrease value */
461 /* Brigth- increase value */
462 /* original value = 0x70; */
739570bb
JFM		 463 reg_w_val(gspca_dev, 0x81, 0x30); /* 0x20; - set brightness */
464 reg_w_val(gspca_dev, 0x80, 0x20); /* 0x20; */
6a7eba24
JFM		 465}
466
467static void setcolors(struct gspca_dev *gspca_dev)
468{
469 struct sd *sd = (struct sd *) gspca_dev;
a5ae2062 470 __u8 I2cc[] = { 0x05, 0x02, 0x02, 0x05, 0x0d };
6a7eba24
JFM		 471 __u8 i2cflags = 0x01;
472 /* __u8 green = 0; */
473 __u8 colors = sd->colors;
474
475 I2cc[3] = colors; /* red */
476 I2cc[0] = 15 - colors; /* blue */
477 /* green = 15 - ((((7*I2cc[0]) >> 2 ) + I2cc[3]) >> 1); */
478 /* I2cc[1] = I2cc[2] = green; */
479 if (sd->sensor == SENSOR_PAS106) {
739570bb
JFM		 480 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);
481 i2c_w(gspca_dev, PAS106_REG9, I2cc, sizeof I2cc, 1);
6a7eba24
JFM		 482 }
483/* PDEBUG(D_CONF , "Etoms red %d blue %d green %d",
484 I2cc[3], I2cc[0], green); */
485}
486
487static void getcolors(struct gspca_dev *gspca_dev)
488{
489 struct sd *sd = (struct sd *) gspca_dev;
6a7eba24
JFM		 490
491 if (sd->sensor == SENSOR_PAS106) {
739570bb
JFM		 492/* i2c_r(gspca_dev, PAS106_REG9); * blue */
493 i2c_r(gspca_dev, PAS106_REG9 + 3); /* red */
494 sd->colors = gspca_dev->usb_buf[0] & 0x0f;
6a7eba24
JFM		 495 }
496}
497
498static void Et_init1(struct gspca_dev *gspca_dev)
499{
a5ae2062 500 __u8 value;
a5ae2062 501/* __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0x22, 0xac, 0x00, 0x01, 0x00}; */
6a7eba24
JFM		 502 __u8 I2c0[] = { 0x0a, 0x12, 0x05, 0x6d, 0xcd, 0x00, 0x01, 0x00 };
503 /* try 1/120 0x6d 0xcd 0x40 */
a5ae2062 504/* __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0xfe, 0xfe, 0xc0, 0x01, 0x00};
6a7eba24
JFM		 505 * 1/60000 hmm ?? */
506
507 PDEBUG(D_STREAM, "Open Init1 ET");
739570bb
JFM		 508 reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 7);
509 reg_r(gspca_dev, ET_GPIO_IN, 1);
510 reg_w_val(gspca_dev, ET_RESET_ALL, 1);
511 reg_w_val(gspca_dev, ET_RESET_ALL, 0);
512 reg_w_val(gspca_dev, ET_ClCK, 0x10);
513 reg_w_val(gspca_dev, ET_CTRL, 0x19);
6a7eba24 514 /* compression et subsampling */
c2446b3e 515 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
6a7eba24
JFM		 516 value = ET_COMP_VAL1;
517 else
518 value = ET_COMP_VAL0;
6a7eba24 519 PDEBUG(D_STREAM, "Open mode %d Compression %d",
c2446b3e 520 gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv,
6a7eba24 521 value);
739570bb
JFM		 522 reg_w_val(gspca_dev, ET_COMP, value);
523 reg_w_val(gspca_dev, ET_MAXQt, 0x1d);
524 reg_w_val(gspca_dev, ET_MINQt, 0x02);
6a7eba24 525 /* undocumented registers */
739570bb
JFM		 526 reg_w_val(gspca_dev, ET_REG1d, 0xff);
527 reg_w_val(gspca_dev, ET_REG1e, 0xff);
528 reg_w_val(gspca_dev, ET_REG1f, 0xff);
529 reg_w_val(gspca_dev, ET_REG20, 0x35);
530 reg_w_val(gspca_dev, ET_REG21, 0x01);
531 reg_w_val(gspca_dev, ET_REG22, 0x00);
532 reg_w_val(gspca_dev, ET_REG23, 0xf7);
533 reg_w_val(gspca_dev, ET_REG24, 0xff);
534 reg_w_val(gspca_dev, ET_REG25, 0x07);
6a7eba24 535 /* colors setting */
739570bb
JFM		 536 reg_w_val(gspca_dev, ET_G_RED, 0x80);
537 reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
538 reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
539 reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
540 reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
541 reg_w_val(gspca_dev, ET_G_GB_H, 0x00);
6a7eba24 542 /* Window control registers */
739570bb
JFM		 543 reg_w_val(gspca_dev, ET_SYNCHRO, 0xf0);
544 reg_w_val(gspca_dev, ET_STARTX, 0x56); /* 0x56 */
545 reg_w_val(gspca_dev, ET_STARTY, 0x05); /* 0x04 */
546 reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x60);
547 reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0x20);
548 reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x50);
549 reg_w_val(gspca_dev, ET_REG6e, 0x86);
550 reg_w_val(gspca_dev, ET_REG6f, 0x01);
551 reg_w_val(gspca_dev, ET_REG70, 0x86);
552 reg_w_val(gspca_dev, ET_REG71, 0x14);
553 reg_w_val(gspca_dev, ET_REG72, 0x00);
6a7eba24 554 /* Clock Pattern registers */
739570bb
JFM		 555 reg_w_val(gspca_dev, ET_REG73, 0x00);
556 reg_w_val(gspca_dev, ET_REG74, 0x00);
557 reg_w_val(gspca_dev, ET_REG75, 0x0a);
558 reg_w_val(gspca_dev, ET_I2C_CLK, 0x04);
559 reg_w_val(gspca_dev, ET_PXL_CLK, 0x01);
6a7eba24 560 /* set the sensor */
c2446b3e 561 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
6a7eba24 562 I2c0[0] = 0x06;
739570bb
JFM		 563 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);
564 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
6a7eba24 565 value = 0x06;
739570bb
JFM		 566 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
567 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
6a7eba24
JFM		 568 /* value = 0x1f; */
569 value = 0x04;
739570bb 570 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);
6a7eba24
JFM		 571 } else {
572 I2c0[0] = 0x0a;
573
739570bb
JFM		 574 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);
575 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
6a7eba24 576 value = 0x0a;
739570bb
JFM		 577 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
578 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
6a7eba24
JFM		 579 value = 0x04;
580 /* value = 0x10; */
739570bb 581 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);
6a7eba24
JFM		 582 /* bit 2 enable bit 1:2 select 0 1 2 3
583 value = 0x07; * curve 0 *
739570bb 584 i2c_w(gspca_dev, PAS106_REG0f, &value, 1, 1);
6a7eba24
JFM		 585 */
586 }
587
588/* value = 0x01; */
589/* value = 0x22; */
739570bb 590/* i2c_w(gspca_dev, PAS106_REG5, &value, 1, 1); */
6a7eba24 591 /* magnetude and sign bit for DAC */
739570bb 592 i2c_w(gspca_dev, PAS106_REG7, I2c4, sizeof I2c4, 1);
6a7eba24 593 /* now set by fifo the whole colors setting */
739570bb 594 reg_w(gspca_dev, ET_G_RED, GainRGBG, 6);
6a7eba24
JFM		 595 getcolors(gspca_dev);
596 setcolors(gspca_dev);
597}
598
599/* this function is called at probe time */
600static int sd_config(struct gspca_dev *gspca_dev,
601 const struct usb_device_id *id)
602{
603 struct sd *sd = (struct sd *) gspca_dev;
604 struct cam *cam;
605 __u16 vendor;
606 __u16 product;
607
608 vendor = id->idVendor;
609 product = id->idProduct;
610/* switch (vendor) { */
611/* case 0x102c: * Etoms */
612 switch (product) {
613 case 0x6151:
614 sd->sensor = SENSOR_PAS106; /* Etoms61x151 */
615 break;
616 case 0x6251:
617 sd->sensor = SENSOR_TAS5130CXX; /* Etoms61x251 */
618 break;
619/* } */
620/* break; */
621 }
622 cam = &gspca_dev->cam;
623 cam->dev_name = (char *) id->driver_info;
624 cam->epaddr = 1;
625 if (sd->sensor == SENSOR_PAS106) {
626 cam->cam_mode = sif_mode;
627 cam->nmodes = sizeof sif_mode / sizeof sif_mode[0];
628 } else {
629 cam->cam_mode = vga_mode;
630 cam->nmodes = sizeof vga_mode / sizeof vga_mode[0];
631 }
a5ae2062
JFM		 632 sd->brightness = BRIGHTNESS_DEF;
633 sd->contrast = CONTRAST_DEF;
634 sd->colors = COLOR_DEF;
635 sd->autogain = AUTOGAIN_DEF;
6a7eba24
JFM		 636 return 0;
637}
638
639/* this function is called at open time */
640static int sd_open(struct gspca_dev *gspca_dev)
641{
642 struct sd *sd = (struct sd *) gspca_dev;
6a7eba24 643
6a7eba24
JFM		 644 if (sd->sensor == SENSOR_PAS106)
645 Et_init1(gspca_dev);
646 else
647 Et_init2(gspca_dev);
739570bb
JFM		 648 reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);
649 et_video(gspca_dev, 0); /* video off */
6a7eba24
JFM		 650 return 0;
651}
652
653/* -- start the camera -- */
654static void sd_start(struct gspca_dev *gspca_dev)
655{
656 struct sd *sd = (struct sd *) gspca_dev;
6a7eba24
JFM		 657
658 if (sd->sensor == SENSOR_PAS106)
659 Et_init1(gspca_dev);
660 else
661 Et_init2(gspca_dev);
662
739570bb
JFM		 663 reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);
664 et_video(gspca_dev, 1); /* video on */
6a7eba24
JFM		 665}
666
667static void sd_stopN(struct gspca_dev *gspca_dev)
668{
739570bb 669 et_video(gspca_dev, 0); /* video off */
6a7eba24
JFM		 670}
671
672static void sd_stop0(struct gspca_dev *gspca_dev)
673{
674}
675
676static void sd_close(struct gspca_dev *gspca_dev)
677{
678}
679
680static void setbrightness(struct gspca_dev *gspca_dev)
681{
682 struct sd *sd = (struct sd *) gspca_dev;
683 int i;
684 __u8 brightness = sd->brightness;
685
686 for (i = 0; i < 4; i++)
739570bb 687 reg_w_val(gspca_dev, ET_O_RED + i, brightness);
6a7eba24
JFM		 688}
689
690static void getbrightness(struct gspca_dev *gspca_dev)
691{
692 struct sd *sd = (struct sd *) gspca_dev;
693 int i;
694 int brightness = 0;
6a7eba24
JFM		 695
696 for (i = 0; i < 4; i++) {
739570bb
JFM		 697 reg_r(gspca_dev, ET_O_RED + i, 1);
698 brightness += gspca_dev->usb_buf[0];
6a7eba24
JFM		 699 }
700 sd->brightness = brightness >> 3;
701}
702
703static void setcontrast(struct gspca_dev *gspca_dev)
704{
705 struct sd *sd = (struct sd *) gspca_dev;
706 __u8 RGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
707 __u8 contrast = sd->contrast;
708
739570bb
JFM		 709 memset(RGBG, contrast, sizeof(RGBG) - 2);
710 reg_w(gspca_dev, ET_G_RED, RGBG, 6);
6a7eba24
JFM		 711}
712
713static void getcontrast(struct gspca_dev *gspca_dev)
714{
715 struct sd *sd = (struct sd *) gspca_dev;
716 int i;
717 int contrast = 0;
6a7eba24
JFM		 718
719 for (i = 0; i < 4; i++) {
739570bb
JFM		 720 reg_r(gspca_dev, ET_G_RED + i, 1);
721 contrast += gspca_dev->usb_buf[0];
6a7eba24
JFM		 722 }
723 sd->contrast = contrast >> 2;
724}
725
726static __u8 Et_getgainG(struct gspca_dev *gspca_dev)
727{
728 struct sd *sd = (struct sd *) gspca_dev;
6a7eba24
JFM		 729
730 if (sd->sensor == SENSOR_PAS106) {
739570bb
JFM		 731 i2c_r(gspca_dev, PAS106_REG0e);
732 PDEBUG(D_CONF, "Etoms gain G %d", gspca_dev->usb_buf[0]);
733 return gspca_dev->usb_buf[0];
6a7eba24
JFM		 734 }
735 return 0x1f;
736}
737
738static void Et_setgainG(struct gspca_dev *gspca_dev, __u8 gain)
739{
740 struct sd *sd = (struct sd *) gspca_dev;
6a7eba24
JFM		 741
742 if (sd->sensor == SENSOR_PAS106) {
739570bb
JFM		 743 __u8 i2cflags = 0x01;
744
745 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);
746 i2c_w(gspca_dev, PAS106_REG0e, &gain, 1, 1);
6a7eba24
JFM		 747 }
748}
749
750#define BLIMIT(bright) \
751 (__u8)((bright > 0x1f)?0x1f:((bright < 4)?3:bright))
752#define LIMIT(color) \
753 (unsigned char)((color > 0xff)?0xff:((color < 0)?0:color))
754
755static void setautogain(struct gspca_dev *gspca_dev)
756{
6a7eba24
JFM		 757 __u8 luma = 0;
758 __u8 luma_mean = 128;
759 __u8 luma_delta = 20;
760 __u8 spring = 4;
761 int Gbright = 0;
762 __u8 r, g, b;
763
764 Gbright = Et_getgainG(gspca_dev);
739570bb
JFM		 765 reg_r(gspca_dev, ET_LUMA_CENTER, 4);
766 g = (gspca_dev->usb_buf[0] + gspca_dev->usb_buf[3]) >> 1;
767 r = gspca_dev->usb_buf[1];
768 b = gspca_dev->usb_buf[2];
6a7eba24
JFM		 769 r = ((r << 8) - (r << 4) - (r << 3)) >> 10;
770 b = ((b << 7) >> 10);
771 g = ((g << 9) + (g << 7) + (g << 5)) >> 10;
772 luma = LIMIT(r + g + b);
773 PDEBUG(D_FRAM, "Etoms luma G %d", luma);
774 if (luma < luma_mean - luma_delta || luma > luma_mean + luma_delta) {
775 Gbright += (luma_mean - luma) >> spring;
776 Gbright = BLIMIT(Gbright);
777 PDEBUG(D_FRAM, "Etoms Gbright %d", Gbright);
778 Et_setgainG(gspca_dev, (__u8) Gbright);
779 }
780}
781
782#undef BLIMIT
783#undef LIMIT
784
785static void sd_pkt_scan(struct gspca_dev *gspca_dev,
786 struct gspca_frame *frame, /* target */
a5ae2062 787 __u8 *data, /* isoc packet */
6a7eba24
JFM		 788 int len) /* iso packet length */
789{
790 struct sd *sd;
791 int seqframe;
792
793 seqframe = data[0] & 0x3f;
794 len = (int) (((data[0] & 0xc0) << 2) | data[1]);
795 if (seqframe == 0x3f) {
796 PDEBUG(D_FRAM,
797 "header packet found datalength %d !!", len);
798 PDEBUG(D_FRAM, "G %d R %d G %d B %d",
799 data[2], data[3], data[4], data[5]);
800 data += 30;
801 /* don't change datalength as the chips provided it */
802 frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
803 data, 0);
804 gspca_frame_add(gspca_dev, FIRST_PACKET, frame, data, len);
805 sd = (struct sd *) gspca_dev;
806 if (sd->ag_cnt >= 0) {
807 if (--sd->ag_cnt < 0) {
808 sd->ag_cnt = AG_CNT_START;
809 setautogain(gspca_dev);
810 }
811 }
812 return;
813 }
814 if (len) {
815 data += 8;
816 gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
817 } else { /* Drop Packet */
818 gspca_dev->last_packet_type = DISCARD_PACKET;
819 }
820}
821
822static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
823{
824 struct sd *sd = (struct sd *) gspca_dev;
825
826 sd->brightness = val;
827 if (gspca_dev->streaming)
828 setbrightness(gspca_dev);
829 return 0;
830}
831
832static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
833{
834 struct sd *sd = (struct sd *) gspca_dev;
835
836 getbrightness(gspca_dev);
837 *val = sd->brightness;
838 return 0;
839}
840
841static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
842{
843 struct sd *sd = (struct sd *) gspca_dev;
844
845 sd->contrast = val;
846 if (gspca_dev->streaming)
847 setcontrast(gspca_dev);
848 return 0;
849}
850
851static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
852{
853 struct sd *sd = (struct sd *) gspca_dev;
854
855 getcontrast(gspca_dev);
856 *val = sd->contrast;
857 return 0;
858}
859
860static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
861{
862 struct sd *sd = (struct sd *) gspca_dev;
863
864 sd->colors = val;
865 if (gspca_dev->streaming)
866 setcolors(gspca_dev);
867 return 0;
868}
869
870static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
871{
872 struct sd *sd = (struct sd *) gspca_dev;
873
874 getcolors(gspca_dev);
875 *val = sd->colors;
876 return 0;
877}
878
879static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
880{
881 struct sd *sd = (struct sd *) gspca_dev;
882
883 sd->autogain = val;
884 if (val)
885 sd->ag_cnt = AG_CNT_START;
886 else
887 sd->ag_cnt = -1;
888 return 0;
889}
890
891static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val)
892{
893 struct sd *sd = (struct sd *) gspca_dev;
894
895 *val = sd->autogain;
896 return 0;
897}
898
899/* sub-driver description */
900static struct sd_desc sd_desc = {
901 .name = MODULE_NAME,
902 .ctrls = sd_ctrls,
903 .nctrls = ARRAY_SIZE(sd_ctrls),
904 .config = sd_config,
905 .open = sd_open,
906 .start = sd_start,
907 .stopN = sd_stopN,
908 .stop0 = sd_stop0,
909 .close = sd_close,
910 .pkt_scan = sd_pkt_scan,
911};
912
913/* -- module initialisation -- */
914#define DVNM(name) .driver_info = (kernel_ulong_t) name
915static __devinitdata struct usb_device_id device_table[] = {
c41492c8 916#ifndef CONFIG_USB_ET61X251
6a7eba24 917 {USB_DEVICE(0x102c, 0x6151), DVNM("Qcam Sangha CIF")},
c41492c8 918#endif
6a7eba24
JFM		 919 {USB_DEVICE(0x102c, 0x6251), DVNM("Qcam xxxxxx VGA")},
920 {}
921};
922
923MODULE_DEVICE_TABLE(usb, device_table);
924
925/* -- device connect -- */
926static int sd_probe(struct usb_interface *intf,
927 const struct usb_device_id *id)
928{
929 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
930 THIS_MODULE);
931}
932
933static struct usb_driver sd_driver = {
934 .name = MODULE_NAME,
935 .id_table = device_table,
936 .probe = sd_probe,
937 .disconnect = gspca_disconnect,
938};
939
940/* -- module insert / remove -- */
941static int __init sd_mod_init(void)
942{
943 if (usb_register(&sd_driver) < 0)
944 return -1;
945 PDEBUG(D_PROBE, "v%s registered", version);
946 return 0;
947}
948
949static void __exit sd_mod_exit(void)
950{
951 usb_deregister(&sd_driver);
952 PDEBUG(D_PROBE, "deregistered");
953}
954
955module_init(sd_mod_init);
956module_exit(sd_mod_exit);
Linux kernel - Deliverables
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