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V4L/DVB (8717): gspca: Frame buffer too small for small resolutions (sonixj and t613).
[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
6a7eba24
JFM		 25MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
26MODULE_DESCRIPTION("Etoms USB Camera Driver");
27MODULE_LICENSE("GPL");
28
29/* specific webcam descriptor */
30struct sd {
31 struct gspca_dev gspca_dev; /* !! must be the first item */
32
33 unsigned char brightness;
34 unsigned char contrast;
35 unsigned char colors;
36 unsigned char autogain;
37
38 char sensor;
39#define SENSOR_PAS106 0
40#define SENSOR_TAS5130CXX 1
41 signed char ag_cnt;
42#define AG_CNT_START 13
43};
44
45/* V4L2 controls supported by the driver */
46static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
47static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
48static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
49static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
50static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val);
51static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
52static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val);
53static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val);
54
55static struct ctrl sd_ctrls[] = {
6a7eba24
JFM		 56 {
57 {
58 .id = V4L2_CID_BRIGHTNESS,
59 .type = V4L2_CTRL_TYPE_INTEGER,
60 .name = "Brightness",
61 .minimum = 1,
62 .maximum = 127,
63 .step = 1,
a5ae2062
JFM		 64#define BRIGHTNESS_DEF 63
65 .default_value = BRIGHTNESS_DEF,
6a7eba24
JFM		 66 },
67 .set = sd_setbrightness,
68 .get = sd_getbrightness,
69 },
6a7eba24
JFM		 70 {
71 {
72 .id = V4L2_CID_CONTRAST,
73 .type = V4L2_CTRL_TYPE_INTEGER,
74 .name = "Contrast",
75 .minimum = 0,
76 .maximum = 255,
77 .step = 1,
a5ae2062
JFM		 78#define CONTRAST_DEF 127
79 .default_value = CONTRAST_DEF,
6a7eba24
JFM		 80 },
81 .set = sd_setcontrast,
82 .get = sd_getcontrast,
83 },
6a7eba24
JFM		 84 {
85 {
86 .id = V4L2_CID_SATURATION,
87 .type = V4L2_CTRL_TYPE_INTEGER,
88 .name = "Color",
89 .minimum = 0,
90 .maximum = 15,
91 .step = 1,
a5ae2062
JFM		 92#define COLOR_DEF 7
93 .default_value = COLOR_DEF,
6a7eba24
JFM		 94 },
95 .set = sd_setcolors,
96 .get = sd_getcolors,
97 },
6a7eba24
JFM		 98 {
99 {
100 .id = V4L2_CID_AUTOGAIN,
101 .type = V4L2_CTRL_TYPE_BOOLEAN,
102 .name = "Auto Gain",
103 .minimum = 0,
104 .maximum = 1,
105 .step = 1,
a5ae2062
JFM		 106#define AUTOGAIN_DEF 1
107 .default_value = AUTOGAIN_DEF,
6a7eba24
JFM		 108 },
109 .set = sd_setautogain,
110 .get = sd_getautogain,
111 },
112};
113
c2446b3e
JFM		 114static struct v4l2_pix_format vga_mode[] = {
115 {320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
116 .bytesperline = 320,
117 .sizeimage = 320 * 240,
118 .colorspace = V4L2_COLORSPACE_SRGB,
119 .priv = 1},
120/* {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
121 .bytesperline = 640,
122 .sizeimage = 640 * 480,
123 .colorspace = V4L2_COLORSPACE_SRGB,
124 .priv = 0}, */
6a7eba24
JFM		 125};
126
c2446b3e
JFM		 127static struct v4l2_pix_format sif_mode[] = {
128 {176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
129 .bytesperline = 176,
130 .sizeimage = 176 * 144,
131 .colorspace = V4L2_COLORSPACE_SRGB,
132 .priv = 1},
133 {352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
134 .bytesperline = 352,
135 .sizeimage = 352 * 288,
136 .colorspace = V4L2_COLORSPACE_SRGB,
137 .priv = 0},
6a7eba24
JFM		 138};
139
140#define ETOMS_ALT_SIZE_1000 12
141
142#define ET_GPIO_DIR_CTRL 0x04 /* Control IO bit[0..5] (0 in 1 out) */
143#define ET_GPIO_OUT 0x05 /* Only IO data */
144#define ET_GPIO_IN 0x06 /* Read Only IO data */
145#define ET_RESET_ALL 0x03
146#define ET_ClCK 0x01
147#define ET_CTRL 0x02 /* enable i2c OutClck Powerdown mode */
148
149#define ET_COMP 0x12 /* Compression register */
150#define ET_MAXQt 0x13
151#define ET_MINQt 0x14
152#define ET_COMP_VAL0 0x02
153#define ET_COMP_VAL1 0x03
154
155#define ET_REG1d 0x1d
156#define ET_REG1e 0x1e
157#define ET_REG1f 0x1f
158#define ET_REG20 0x20
159#define ET_REG21 0x21
160#define ET_REG22 0x22
161#define ET_REG23 0x23
162#define ET_REG24 0x24
163#define ET_REG25 0x25
164/* base registers for luma calculation */
165#define ET_LUMA_CENTER 0x39
166
167#define ET_G_RED 0x4d
168#define ET_G_GREEN1 0x4e
169#define ET_G_BLUE 0x4f
170#define ET_G_GREEN2 0x50
171#define ET_G_GR_H 0x51
172#define ET_G_GB_H 0x52
173
174#define ET_O_RED 0x34
175#define ET_O_GREEN1 0x35
176#define ET_O_BLUE 0x36
177#define ET_O_GREEN2 0x37
178
179#define ET_SYNCHRO 0x68
180#define ET_STARTX 0x69
181#define ET_STARTY 0x6a
182#define ET_WIDTH_LOW 0x6b
183#define ET_HEIGTH_LOW 0x6c
184#define ET_W_H_HEIGTH 0x6d
185
186#define ET_REG6e 0x6e /* OBW */
187#define ET_REG6f 0x6f /* OBW */
188#define ET_REG70 0x70 /* OBW_AWB */
189#define ET_REG71 0x71 /* OBW_AWB */
190#define ET_REG72 0x72 /* OBW_AWB */
191#define ET_REG73 0x73 /* Clkdelay ns */
192#define ET_REG74 0x74 /* test pattern */
193#define ET_REG75 0x75 /* test pattern */
194
195#define ET_I2C_CLK 0x8c
196#define ET_PXL_CLK 0x60
197
198#define ET_I2C_BASE 0x89
199#define ET_I2C_COUNT 0x8a
200#define ET_I2C_PREFETCH 0x8b
201#define ET_I2C_REG 0x88
202#define ET_I2C_DATA7 0x87
203#define ET_I2C_DATA6 0x86
204#define ET_I2C_DATA5 0x85
205#define ET_I2C_DATA4 0x84
206#define ET_I2C_DATA3 0x83
207#define ET_I2C_DATA2 0x82
208#define ET_I2C_DATA1 0x81
209#define ET_I2C_DATA0 0x80
210
211#define PAS106_REG2 0x02 /* pxlClk = systemClk/(reg2) */
212#define PAS106_REG3 0x03 /* line/frame H [11..4] */
213#define PAS106_REG4 0x04 /* line/frame L [3..0] */
214#define PAS106_REG5 0x05 /* exposure time line offset(default 5) */
215#define PAS106_REG6 0x06 /* exposure time pixel offset(default 6) */
216#define PAS106_REG7 0x07 /* signbit Dac (default 0) */
217#define PAS106_REG9 0x09
218#define PAS106_REG0e 0x0e /* global gain [4..0](default 0x0e) */
219#define PAS106_REG13 0x13 /* end i2c write */
220
a5ae2062 221static const __u8 GainRGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
6a7eba24 222
a5ae2062 223static const __u8 I2c2[] = { 0x08, 0x08, 0x08, 0x08, 0x0d };
6a7eba24 224
a5ae2062 225static const __u8 I2c3[] = { 0x12, 0x05 };
6a7eba24 226
a5ae2062 227static const __u8 I2c4[] = { 0x41, 0x08 };
6a7eba24 228
739570bb
JFM		 229/* read 'len' bytes to gspca_dev->usb_buf */
230static void reg_r(struct gspca_dev *gspca_dev,
231 __u16 index,
232 __u16 len)
6a7eba24 233{
739570bb
JFM		 234 struct usb_device *dev = gspca_dev->dev;
235
335b3f88 236#ifdef GSPCA_DEBUG
739570bb
JFM		 237 if (len > sizeof gspca_dev->usb_buf) {
238 err("reg_r: buffer overflow");
239 return;
240 }
241#endif
6a7eba24
JFM		 242 usb_control_msg(dev,
243 usb_rcvctrlpipe(dev, 0),
244 0,
245 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
739570bb
JFM		 246 0,
247 index, gspca_dev->usb_buf, len, 500);
248 PDEBUG(D_USBI, "reg read [%02x] -> %02x ..",
249 index, gspca_dev->usb_buf[0]);
6a7eba24
JFM		 250}
251
739570bb
JFM		 252static void reg_w_val(struct gspca_dev *gspca_dev,
253 __u16 index,
254 __u8 val)
a5ae2062 255{
739570bb 256 struct usb_device *dev = gspca_dev->dev;
a5ae2062 257
739570bb 258 gspca_dev->usb_buf[0] = val;
a5ae2062
JFM		 259 usb_control_msg(dev,
260 usb_sndctrlpipe(dev, 0),
261 0,
262 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
739570bb
JFM		 263 0,
264 index, gspca_dev->usb_buf, 1, 500);
a5ae2062
JFM		 265}
266
739570bb
JFM		 267static void reg_w(struct gspca_dev *gspca_dev,
268 __u16 index,
269 const __u8 *buffer,
270 __u16 len)
6a7eba24 271{
739570bb 272 struct usb_device *dev = gspca_dev->dev;
bf7f0b98 273
335b3f88 274#ifdef GSPCA_DEBUG
739570bb
JFM		 275 if (len > sizeof gspca_dev->usb_buf) {
276 err("reg_w: buffer overflow");
277 return;
278 }
279 PDEBUG(D_USBO, "reg write [%02x] = %02x..", index, *buffer);
280#endif
281 memcpy(gspca_dev->usb_buf, buffer, len);
6a7eba24
JFM		 282 usb_control_msg(dev,
283 usb_sndctrlpipe(dev, 0),
284 0,
285 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
739570bb 286 0, index, gspca_dev->usb_buf, len, 500);
6a7eba24
JFM		 287}
288
739570bb
JFM		 289static int i2c_w(struct gspca_dev *gspca_dev,
290 __u8 reg,
291 const __u8 *buffer,
d20b2747 292 int len, __u8 mode)
6a7eba24 293{
a5ae2062
JFM		 294 /* buffer should be [D0..D7] */
295 __u8 ptchcount;
296
297 /* set the base address */
739570bb
JFM		 298 reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);
299 /* sensor base for the pas106 */
a5ae2062
JFM		 300 /* set count and prefetch */
301 ptchcount = ((len & 0x07) << 4) | (mode & 0x03);
739570bb 302 reg_w_val(gspca_dev, ET_I2C_COUNT, ptchcount);
a5ae2062 303 /* set the register base */
739570bb 304 reg_w_val(gspca_dev, ET_I2C_REG, reg);
a5ae2062 305 while (--len >= 0)
739570bb 306 reg_w_val(gspca_dev, ET_I2C_DATA0 + len, buffer[len]);
6a7eba24
JFM		 307 return 0;
308}
309
739570bb
JFM		 310static int i2c_r(struct gspca_dev *gspca_dev,
311 __u8 reg)
6a7eba24 312{
a5ae2062 313 /* set the base address */
739570bb
JFM		 314 reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);
315 /* sensor base for the pas106 */
316 /* set count and prefetch (cnd: 4 bits - mode: 4 bits) */
317 reg_w_val(gspca_dev, ET_I2C_COUNT, 0x11);
318 reg_w_val(gspca_dev, ET_I2C_REG, reg); /* set the register base */
319 reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x02); /* prefetch */
320 reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x00);
321 reg_r(gspca_dev, ET_I2C_DATA0, 1); /* read one byte */
6a7eba24
JFM		 322 return 0;
323}
324
739570bb 325static int Et_WaitStatus(struct gspca_dev *gspca_dev)
6a7eba24 326{
6a7eba24
JFM		 327 int retry = 10;
328
329 while (retry--) {
739570bb
JFM		 330 reg_r(gspca_dev, ET_ClCK, 1);
331 if (gspca_dev->usb_buf[0] != 0)
6a7eba24
JFM		 332 return 1;
333 }
334 return 0;
335}
336
739570bb
JFM		 337static int et_video(struct gspca_dev *gspca_dev,
338 int on)
6a7eba24 339{
739570bb 340 int ret;
6a7eba24 341
739570bb
JFM		 342 reg_w_val(gspca_dev, ET_GPIO_OUT,
343 on ? 0x10 /* startvideo - set Bit5 */
344 : 0); /* stopvideo */
345 ret = Et_WaitStatus(gspca_dev);
346 if (ret != 0)
a5ae2062 347 PDEBUG(D_ERR, "timeout video on/off");
739570bb 348 return ret;
6a7eba24
JFM		 349}
350
351static void Et_init2(struct gspca_dev *gspca_dev)
352{
a5ae2062 353 __u8 value;
a5ae2062 354 static const __u8 FormLine[] = { 0x84, 0x03, 0x14, 0xf4, 0x01, 0x05 };
6a7eba24
JFM		 355
356 PDEBUG(D_STREAM, "Open Init2 ET");
739570bb
JFM		 357 reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 0x2f);
358 reg_w_val(gspca_dev, ET_GPIO_OUT, 0x10);
359 reg_r(gspca_dev, ET_GPIO_IN, 1);
360 reg_w_val(gspca_dev, ET_ClCK, 0x14); /* 0x14 // 0x16 enabled pattern */
361 reg_w_val(gspca_dev, ET_CTRL, 0x1b);
6a7eba24
JFM		 362
363 /* compression et subsampling */
c2446b3e 364 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
6a7eba24
JFM		 365 value = ET_COMP_VAL1; /* 320 */
366 else
367 value = ET_COMP_VAL0; /* 640 */
739570bb
JFM		 368 reg_w_val(gspca_dev, ET_COMP, value);
369 reg_w_val(gspca_dev, ET_MAXQt, 0x1f);
370 reg_w_val(gspca_dev, ET_MINQt, 0x04);
6a7eba24 371 /* undocumented registers */
739570bb
JFM		 372 reg_w_val(gspca_dev, ET_REG1d, 0xff);
373 reg_w_val(gspca_dev, ET_REG1e, 0xff);
374 reg_w_val(gspca_dev, ET_REG1f, 0xff);
375 reg_w_val(gspca_dev, ET_REG20, 0x35);
376 reg_w_val(gspca_dev, ET_REG21, 0x01);
377 reg_w_val(gspca_dev, ET_REG22, 0x00);
378 reg_w_val(gspca_dev, ET_REG23, 0xff);
379 reg_w_val(gspca_dev, ET_REG24, 0xff);
380 reg_w_val(gspca_dev, ET_REG25, 0x0f);
6a7eba24 381 /* colors setting */
739570bb
JFM		 382 reg_w_val(gspca_dev, 0x30, 0x11); /* 0x30 */
383 reg_w_val(gspca_dev, 0x31, 0x40);
384 reg_w_val(gspca_dev, 0x32, 0x00);
385 reg_w_val(gspca_dev, ET_O_RED, 0x00); /* 0x34 */
386 reg_w_val(gspca_dev, ET_O_GREEN1, 0x00);
387 reg_w_val(gspca_dev, ET_O_BLUE, 0x00);
388 reg_w_val(gspca_dev, ET_O_GREEN2, 0x00);
6a7eba24 389 /*************/
739570bb
JFM		 390 reg_w_val(gspca_dev, ET_G_RED, 0x80); /* 0x4d */
391 reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
392 reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
393 reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
394 reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
395 reg_w_val(gspca_dev, ET_G_GB_H, 0x00); /* 0x52 */
6a7eba24 396 /* Window control registers */
739570bb
JFM		 397 reg_w_val(gspca_dev, 0x61, 0x80); /* use cmc_out */
398 reg_w_val(gspca_dev, 0x62, 0x02);
399 reg_w_val(gspca_dev, 0x63, 0x03);
400 reg_w_val(gspca_dev, 0x64, 0x14);
401 reg_w_val(gspca_dev, 0x65, 0x0e);
402 reg_w_val(gspca_dev, 0x66, 0x02);
403 reg_w_val(gspca_dev, 0x67, 0x02);
6a7eba24
JFM		 404
405 /**************************************/
739570bb
JFM		 406 reg_w_val(gspca_dev, ET_SYNCHRO, 0x8f); /* 0x68 */
407 reg_w_val(gspca_dev, ET_STARTX, 0x69); /* 0x6a //0x69 */
408 reg_w_val(gspca_dev, ET_STARTY, 0x0d); /* 0x0d //0x0c */
409 reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x80);
410 reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0xe0);
411 reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x60); /* 6d */
412 reg_w_val(gspca_dev, ET_REG6e, 0x86);
413 reg_w_val(gspca_dev, ET_REG6f, 0x01);
414 reg_w_val(gspca_dev, ET_REG70, 0x26);
415 reg_w_val(gspca_dev, ET_REG71, 0x7a);
416 reg_w_val(gspca_dev, ET_REG72, 0x01);
6a7eba24 417 /* Clock Pattern registers ***************** */
739570bb
JFM		 418 reg_w_val(gspca_dev, ET_REG73, 0x00);
419 reg_w_val(gspca_dev, ET_REG74, 0x18); /* 0x28 */
420 reg_w_val(gspca_dev, ET_REG75, 0x0f); /* 0x01 */
6a7eba24 421 /**********************************************/
739570bb
JFM		 422 reg_w_val(gspca_dev, 0x8a, 0x20);
423 reg_w_val(gspca_dev, 0x8d, 0x0f);
424 reg_w_val(gspca_dev, 0x8e, 0x08);
6a7eba24 425 /**************************************/
739570bb
JFM		 426 reg_w_val(gspca_dev, 0x03, 0x08);
427 reg_w_val(gspca_dev, ET_PXL_CLK, 0x03);
428 reg_w_val(gspca_dev, 0x81, 0xff);
429 reg_w_val(gspca_dev, 0x80, 0x00);
430 reg_w_val(gspca_dev, 0x81, 0xff);
431 reg_w_val(gspca_dev, 0x80, 0x20);
432 reg_w_val(gspca_dev, 0x03, 0x01);
433 reg_w_val(gspca_dev, 0x03, 0x00);
434 reg_w_val(gspca_dev, 0x03, 0x08);
6a7eba24
JFM		 435 /********************************************/
436
739570bb 437/* reg_r(gspca_dev, ET_I2C_BASE, 1);
6a7eba24
JFM		 438 always 0x40 as the pas106 ??? */
439 /* set the sensor */
c2446b3e 440 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
a5ae2062
JFM		 441 value = 0x04; /* 320 */
442 else /* 640 */
443 value = 0x1e; /* 0x17 * setting PixelClock
444 * 0x03 mean 24/(3+1) = 6 Mhz
445 * 0x05 -> 24/(5+1) = 4 Mhz
446 * 0x0b -> 24/(11+1) = 2 Mhz
447 * 0x17 -> 24/(23+1) = 1 Mhz
448 */
739570bb 449 reg_w_val(gspca_dev, ET_PXL_CLK, value);
a5ae2062 450 /* now set by fifo the FormatLine setting */
739570bb 451 reg_w(gspca_dev, 0x62, FormLine, 6);
6a7eba24
JFM		 452
453 /* set exposure times [ 0..0x78] 0->longvalue 0x78->shortvalue */
739570bb
JFM		 454 reg_w_val(gspca_dev, 0x81, 0x47); /* 0x47; */
455 reg_w_val(gspca_dev, 0x80, 0x40); /* 0x40; */
6a7eba24
JFM		 456 /* Pedro change */
457 /* Brightness change Brith+ decrease value */
458 /* Brigth- increase value */
459 /* original value = 0x70; */
739570bb
JFM		 460 reg_w_val(gspca_dev, 0x81, 0x30); /* 0x20; - set brightness */
461 reg_w_val(gspca_dev, 0x80, 0x20); /* 0x20; */
6a7eba24
JFM		 462}
463
cebf3b67
JFM		 464static void setbrightness(struct gspca_dev *gspca_dev)
465{
466 struct sd *sd = (struct sd *) gspca_dev;
467 int i;
468 __u8 brightness = sd->brightness;
469
470 for (i = 0; i < 4; i++)
471 reg_w_val(gspca_dev, ET_O_RED + i, brightness);
472}
473
474static void getbrightness(struct gspca_dev *gspca_dev)
475{
476 struct sd *sd = (struct sd *) gspca_dev;
477 int i;
478 int brightness = 0;
479
480 for (i = 0; i < 4; i++) {
481 reg_r(gspca_dev, ET_O_RED + i, 1);
482 brightness += gspca_dev->usb_buf[0];
483 }
484 sd->brightness = brightness >> 3;
485}
486
487static void setcontrast(struct gspca_dev *gspca_dev)
488{
489 struct sd *sd = (struct sd *) gspca_dev;
490 __u8 RGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
491 __u8 contrast = sd->contrast;
492
493 memset(RGBG, contrast, sizeof(RGBG) - 2);
494 reg_w(gspca_dev, ET_G_RED, RGBG, 6);
495}
496
497static void getcontrast(struct gspca_dev *gspca_dev)
498{
499 struct sd *sd = (struct sd *) gspca_dev;
500 int i;
501 int contrast = 0;
502
503 for (i = 0; i < 4; i++) {
504 reg_r(gspca_dev, ET_G_RED + i, 1);
505 contrast += gspca_dev->usb_buf[0];
506 }
507 sd->contrast = contrast >> 2;
508}
509
6a7eba24
JFM		 510static void setcolors(struct gspca_dev *gspca_dev)
511{
512 struct sd *sd = (struct sd *) gspca_dev;
a5ae2062 513 __u8 I2cc[] = { 0x05, 0x02, 0x02, 0x05, 0x0d };
6a7eba24
JFM		 514 __u8 i2cflags = 0x01;
515 /* __u8 green = 0; */
516 __u8 colors = sd->colors;
517
518 I2cc[3] = colors; /* red */
519 I2cc[0] = 15 - colors; /* blue */
520 /* green = 15 - ((((7*I2cc[0]) >> 2 ) + I2cc[3]) >> 1); */
521 /* I2cc[1] = I2cc[2] = green; */
522 if (sd->sensor == SENSOR_PAS106) {
739570bb
JFM		 523 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);
524 i2c_w(gspca_dev, PAS106_REG9, I2cc, sizeof I2cc, 1);
6a7eba24
JFM		 525 }
526/* PDEBUG(D_CONF , "Etoms red %d blue %d green %d",
527 I2cc[3], I2cc[0], green); */
528}
529
530static void getcolors(struct gspca_dev *gspca_dev)
531{
532 struct sd *sd = (struct sd *) gspca_dev;
6a7eba24
JFM		 533
534 if (sd->sensor == SENSOR_PAS106) {
739570bb
JFM		 535/* i2c_r(gspca_dev, PAS106_REG9); * blue */
536 i2c_r(gspca_dev, PAS106_REG9 + 3); /* red */
537 sd->colors = gspca_dev->usb_buf[0] & 0x0f;
6a7eba24
JFM		 538 }
539}
540
cebf3b67
JFM		 541static void setautogain(struct gspca_dev *gspca_dev)
542{
543 struct sd *sd = (struct sd *) gspca_dev;
544
545 if (sd->autogain)
546 sd->ag_cnt = AG_CNT_START;
547 else
548 sd->ag_cnt = -1;
549}
550
6a7eba24
JFM		 551static void Et_init1(struct gspca_dev *gspca_dev)
552{
a5ae2062 553 __u8 value;
a5ae2062 554/* __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0x22, 0xac, 0x00, 0x01, 0x00}; */
6a7eba24
JFM		 555 __u8 I2c0[] = { 0x0a, 0x12, 0x05, 0x6d, 0xcd, 0x00, 0x01, 0x00 };
556 /* try 1/120 0x6d 0xcd 0x40 */
a5ae2062 557/* __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0xfe, 0xfe, 0xc0, 0x01, 0x00};
6a7eba24
JFM		 558 * 1/60000 hmm ?? */
559
560 PDEBUG(D_STREAM, "Open Init1 ET");
739570bb
JFM		 561 reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 7);
562 reg_r(gspca_dev, ET_GPIO_IN, 1);
563 reg_w_val(gspca_dev, ET_RESET_ALL, 1);
564 reg_w_val(gspca_dev, ET_RESET_ALL, 0);
565 reg_w_val(gspca_dev, ET_ClCK, 0x10);
566 reg_w_val(gspca_dev, ET_CTRL, 0x19);
6a7eba24 567 /* compression et subsampling */
c2446b3e 568 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
6a7eba24
JFM		 569 value = ET_COMP_VAL1;
570 else
571 value = ET_COMP_VAL0;
6a7eba24 572 PDEBUG(D_STREAM, "Open mode %d Compression %d",
c2446b3e 573 gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv,
6a7eba24 574 value);
739570bb
JFM		 575 reg_w_val(gspca_dev, ET_COMP, value);
576 reg_w_val(gspca_dev, ET_MAXQt, 0x1d);
577 reg_w_val(gspca_dev, ET_MINQt, 0x02);
6a7eba24 578 /* undocumented registers */
739570bb
JFM		 579 reg_w_val(gspca_dev, ET_REG1d, 0xff);
580 reg_w_val(gspca_dev, ET_REG1e, 0xff);
581 reg_w_val(gspca_dev, ET_REG1f, 0xff);
582 reg_w_val(gspca_dev, ET_REG20, 0x35);
583 reg_w_val(gspca_dev, ET_REG21, 0x01);
584 reg_w_val(gspca_dev, ET_REG22, 0x00);
585 reg_w_val(gspca_dev, ET_REG23, 0xf7);
586 reg_w_val(gspca_dev, ET_REG24, 0xff);
587 reg_w_val(gspca_dev, ET_REG25, 0x07);
6a7eba24 588 /* colors setting */
739570bb
JFM		 589 reg_w_val(gspca_dev, ET_G_RED, 0x80);
590 reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
591 reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
592 reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
593 reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
594 reg_w_val(gspca_dev, ET_G_GB_H, 0x00);
6a7eba24 595 /* Window control registers */
739570bb
JFM		 596 reg_w_val(gspca_dev, ET_SYNCHRO, 0xf0);
597 reg_w_val(gspca_dev, ET_STARTX, 0x56); /* 0x56 */
598 reg_w_val(gspca_dev, ET_STARTY, 0x05); /* 0x04 */
599 reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x60);
600 reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0x20);
601 reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x50);
602 reg_w_val(gspca_dev, ET_REG6e, 0x86);
603 reg_w_val(gspca_dev, ET_REG6f, 0x01);
604 reg_w_val(gspca_dev, ET_REG70, 0x86);
605 reg_w_val(gspca_dev, ET_REG71, 0x14);
606 reg_w_val(gspca_dev, ET_REG72, 0x00);
6a7eba24 607 /* Clock Pattern registers */
739570bb
JFM		 608 reg_w_val(gspca_dev, ET_REG73, 0x00);
609 reg_w_val(gspca_dev, ET_REG74, 0x00);
610 reg_w_val(gspca_dev, ET_REG75, 0x0a);
611 reg_w_val(gspca_dev, ET_I2C_CLK, 0x04);
612 reg_w_val(gspca_dev, ET_PXL_CLK, 0x01);
6a7eba24 613 /* set the sensor */
c2446b3e 614 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
6a7eba24 615 I2c0[0] = 0x06;
739570bb
JFM		 616 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);
617 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
6a7eba24 618 value = 0x06;
739570bb
JFM		 619 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
620 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
6a7eba24
JFM		 621 /* value = 0x1f; */
622 value = 0x04;
739570bb 623 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);
6a7eba24
JFM		 624 } else {
625 I2c0[0] = 0x0a;
626
739570bb
JFM		 627 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);
628 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
6a7eba24 629 value = 0x0a;
739570bb
JFM		 630 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
631 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
6a7eba24
JFM		 632 value = 0x04;
633 /* value = 0x10; */
739570bb 634 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);
6a7eba24
JFM		 635 /* bit 2 enable bit 1:2 select 0 1 2 3
636 value = 0x07; * curve 0 *
739570bb 637 i2c_w(gspca_dev, PAS106_REG0f, &value, 1, 1);
6a7eba24
JFM		 638 */
639 }
640
641/* value = 0x01; */
642/* value = 0x22; */
739570bb 643/* i2c_w(gspca_dev, PAS106_REG5, &value, 1, 1); */
6a7eba24 644 /* magnetude and sign bit for DAC */
739570bb 645 i2c_w(gspca_dev, PAS106_REG7, I2c4, sizeof I2c4, 1);
6a7eba24 646 /* now set by fifo the whole colors setting */
739570bb 647 reg_w(gspca_dev, ET_G_RED, GainRGBG, 6);
6a7eba24
JFM		 648 getcolors(gspca_dev);
649 setcolors(gspca_dev);
650}
651
652/* this function is called at probe time */
653static int sd_config(struct gspca_dev *gspca_dev,
654 const struct usb_device_id *id)
655{
656 struct sd *sd = (struct sd *) gspca_dev;
657 struct cam *cam;
9d64fdb1 658
6a7eba24 659 cam = &gspca_dev->cam;
6a7eba24 660 cam->epaddr = 1;
9d64fdb1 661 sd->sensor = id->driver_info;
6a7eba24
JFM		 662 if (sd->sensor == SENSOR_PAS106) {
663 cam->cam_mode = sif_mode;
664 cam->nmodes = sizeof sif_mode / sizeof sif_mode[0];
665 } else {
666 cam->cam_mode = vga_mode;
667 cam->nmodes = sizeof vga_mode / sizeof vga_mode[0];
668 }
a5ae2062
JFM		 669 sd->brightness = BRIGHTNESS_DEF;
670 sd->contrast = CONTRAST_DEF;
671 sd->colors = COLOR_DEF;
672 sd->autogain = AUTOGAIN_DEF;
cebf3b67 673 sd->ag_cnt = -1;
6a7eba24
JFM		 674 return 0;
675}
676
677/* this function is called at open time */
678static int sd_open(struct gspca_dev *gspca_dev)
679{
680 struct sd *sd = (struct sd *) gspca_dev;
6a7eba24 681
6a7eba24
JFM		 682 if (sd->sensor == SENSOR_PAS106)
683 Et_init1(gspca_dev);
684 else
685 Et_init2(gspca_dev);
739570bb
JFM		 686 reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);
687 et_video(gspca_dev, 0); /* video off */
6a7eba24
JFM		 688 return 0;
689}
690
691/* -- start the camera -- */
692static void sd_start(struct gspca_dev *gspca_dev)
693{
694 struct sd *sd = (struct sd *) gspca_dev;
6a7eba24
JFM		 695
696 if (sd->sensor == SENSOR_PAS106)
697 Et_init1(gspca_dev);
698 else
699 Et_init2(gspca_dev);
700
cebf3b67
JFM		 701 setautogain(gspca_dev);
702
739570bb
JFM		 703 reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);
704 et_video(gspca_dev, 1); /* video on */
6a7eba24
JFM		 705}
706
707static void sd_stopN(struct gspca_dev *gspca_dev)
708{
739570bb 709 et_video(gspca_dev, 0); /* video off */
6a7eba24
JFM		 710}
711
712static void sd_stop0(struct gspca_dev *gspca_dev)
713{
714}
715
716static void sd_close(struct gspca_dev *gspca_dev)
717{
718}
719
6a7eba24
JFM		 720static __u8 Et_getgainG(struct gspca_dev *gspca_dev)
721{
722 struct sd *sd = (struct sd *) gspca_dev;
6a7eba24
JFM		 723
724 if (sd->sensor == SENSOR_PAS106) {
739570bb
JFM		 725 i2c_r(gspca_dev, PAS106_REG0e);
726 PDEBUG(D_CONF, "Etoms gain G %d", gspca_dev->usb_buf[0]);
727 return gspca_dev->usb_buf[0];
6a7eba24
JFM		 728 }
729 return 0x1f;
730}
731
732static void Et_setgainG(struct gspca_dev *gspca_dev, __u8 gain)
733{
734 struct sd *sd = (struct sd *) gspca_dev;
6a7eba24
JFM		 735
736 if (sd->sensor == SENSOR_PAS106) {
739570bb
JFM		 737 __u8 i2cflags = 0x01;
738
739 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);
740 i2c_w(gspca_dev, PAS106_REG0e, &gain, 1, 1);
6a7eba24
JFM		 741 }
742}
743
744#define BLIMIT(bright) \
745 (__u8)((bright > 0x1f)?0x1f:((bright < 4)?3:bright))
746#define LIMIT(color) \
747 (unsigned char)((color > 0xff)?0xff:((color < 0)?0:color))
748
cebf3b67 749static void do_autogain(struct gspca_dev *gspca_dev)
6a7eba24 750{
cebf3b67
JFM		 751 struct sd *sd = (struct sd *) gspca_dev;
752 __u8 luma;
6a7eba24
JFM		 753 __u8 luma_mean = 128;
754 __u8 luma_delta = 20;
755 __u8 spring = 4;
cebf3b67 756 int Gbright;
6a7eba24
JFM		 757 __u8 r, g, b;
758
cebf3b67
JFM		 759 if (sd->ag_cnt < 0)
760 return;
761 if (--sd->ag_cnt >= 0)
762 return;
763 sd->ag_cnt = AG_CNT_START;
764
6a7eba24 765 Gbright = Et_getgainG(gspca_dev);
739570bb
JFM		 766 reg_r(gspca_dev, ET_LUMA_CENTER, 4);
767 g = (gspca_dev->usb_buf[0] + gspca_dev->usb_buf[3]) >> 1;
768 r = gspca_dev->usb_buf[1];
769 b = gspca_dev->usb_buf[2];
6a7eba24
JFM		 770 r = ((r << 8) - (r << 4) - (r << 3)) >> 10;
771 b = ((b << 7) >> 10);
772 g = ((g << 9) + (g << 7) + (g << 5)) >> 10;
773 luma = LIMIT(r + g + b);
774 PDEBUG(D_FRAM, "Etoms luma G %d", luma);
775 if (luma < luma_mean - luma_delta || luma > luma_mean + luma_delta) {
776 Gbright += (luma_mean - luma) >> spring;
777 Gbright = BLIMIT(Gbright);
778 PDEBUG(D_FRAM, "Etoms Gbright %d", Gbright);
779 Et_setgainG(gspca_dev, (__u8) Gbright);
780 }
781}
782
783#undef BLIMIT
784#undef LIMIT
785
786static void sd_pkt_scan(struct gspca_dev *gspca_dev,
787 struct gspca_frame *frame, /* target */
a5ae2062 788 __u8 *data, /* isoc packet */
6a7eba24
JFM		 789 int len) /* iso packet length */
790{
6a7eba24
JFM		 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);
6a7eba24
JFM		 805 return;
806 }
807 if (len) {
808 data += 8;
809 gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
810 } else { /* Drop Packet */
811 gspca_dev->last_packet_type = DISCARD_PACKET;
812 }
813}
814
815static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
816{
817 struct sd *sd = (struct sd *) gspca_dev;
818
819 sd->brightness = val;
820 if (gspca_dev->streaming)
821 setbrightness(gspca_dev);
822 return 0;
823}
824
825static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
826{
827 struct sd *sd = (struct sd *) gspca_dev;
828
829 getbrightness(gspca_dev);
830 *val = sd->brightness;
831 return 0;
832}
833
834static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
835{
836 struct sd *sd = (struct sd *) gspca_dev;
837
838 sd->contrast = val;
839 if (gspca_dev->streaming)
840 setcontrast(gspca_dev);
841 return 0;
842}
843
844static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
845{
846 struct sd *sd = (struct sd *) gspca_dev;
847
848 getcontrast(gspca_dev);
849 *val = sd->contrast;
850 return 0;
851}
852
853static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
854{
855 struct sd *sd = (struct sd *) gspca_dev;
856
857 sd->colors = val;
858 if (gspca_dev->streaming)
859 setcolors(gspca_dev);
860 return 0;
861}
862
863static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
864{
865 struct sd *sd = (struct sd *) gspca_dev;
866
867 getcolors(gspca_dev);
868 *val = sd->colors;
869 return 0;
870}
871
872static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
873{
874 struct sd *sd = (struct sd *) gspca_dev;
875
876 sd->autogain = val;
cebf3b67
JFM		 877 if (gspca_dev->streaming)
878 setautogain(gspca_dev);
6a7eba24
JFM		 879 return 0;
880}
881
882static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val)
883{
884 struct sd *sd = (struct sd *) gspca_dev;
885
886 *val = sd->autogain;
887 return 0;
888}
889
890/* sub-driver description */
891static struct sd_desc sd_desc = {
892 .name = MODULE_NAME,
893 .ctrls = sd_ctrls,
894 .nctrls = ARRAY_SIZE(sd_ctrls),
895 .config = sd_config,
896 .open = sd_open,
897 .start = sd_start,
898 .stopN = sd_stopN,
899 .stop0 = sd_stop0,
900 .close = sd_close,
901 .pkt_scan = sd_pkt_scan,
cebf3b67 902 .dq_callback = do_autogain,
6a7eba24
JFM		 903};
904
905/* -- module initialisation -- */
6a7eba24 906static __devinitdata struct usb_device_id device_table[] = {
9d64fdb1 907 {USB_DEVICE(0x102c, 0x6151), .driver_info = SENSOR_PAS106},
5bb0f21a 908#ifndef CONFIG_USB_ET61X251
9d64fdb1 909 {USB_DEVICE(0x102c, 0x6251), .driver_info = SENSOR_TAS5130CXX},
5bb0f21a 910#endif
6a7eba24
JFM		 911 {}
912};
913
914MODULE_DEVICE_TABLE(usb, device_table);
915
916/* -- device connect -- */
917static int sd_probe(struct usb_interface *intf,
918 const struct usb_device_id *id)
919{
920 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
921 THIS_MODULE);
922}
923
924static struct usb_driver sd_driver = {
925 .name = MODULE_NAME,
926 .id_table = device_table,
927 .probe = sd_probe,
928 .disconnect = gspca_disconnect,
929};
930
931/* -- module insert / remove -- */
932static int __init sd_mod_init(void)
933{
934 if (usb_register(&sd_driver) < 0)
935 return -1;
10b0e96e 936 PDEBUG(D_PROBE, "registered");
6a7eba24
JFM		 937 return 0;
938}
939
940static void __exit sd_mod_exit(void)
941{
942 usb_deregister(&sd_driver);
943 PDEBUG(D_PROBE, "deregistered");
944}
945
946module_init(sd_mod_init);
947module_exit(sd_mod_exit);
Linux kernel - Deliverables
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