diff options
Diffstat (limited to 'drivers/media/video/gspca/pac7311.c')
-rw-r--r-- | drivers/media/video/gspca/pac7311.c | 881 |
1 files changed, 881 insertions, 0 deletions
diff --git a/drivers/media/video/gspca/pac7311.c b/drivers/media/video/gspca/pac7311.c new file mode 100644 index 00000000000..f8801b50e64 --- /dev/null +++ b/drivers/media/video/gspca/pac7311.c | |||
@@ -0,0 +1,881 @@ | |||
1 | /* | ||
2 | * Pixart PAC7311 library | ||
3 | * Copyright (C) 2005 Thomas Kaiser thomas@kaiser-linux.li | ||
4 | * | ||
5 | * V4L2 by Jean-Francois Moine <http://moinejf.free.fr> | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; either version 2 of the License, or | ||
10 | * any later version. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | * GNU General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License | ||
18 | * along with this program; if not, write to the Free Software | ||
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
20 | */ | ||
21 | |||
22 | /* Some documentation about various registers as determined by trial and error. | ||
23 | When the register addresses differ between the 7202 and the 7311 the 2 | ||
24 | different addresses are written as 7302addr/7311addr, when one of the 2 | ||
25 | addresses is a - sign that register description is not valid for the | ||
26 | matching IC. | ||
27 | |||
28 | Register page 1: | ||
29 | |||
30 | Address Description | ||
31 | -/0x08 Unknown compressor related, must always be 8 except when not | ||
32 | in 640x480 resolution and page 4 reg 2 <= 3 then set it to 9 ! | ||
33 | -/0x1b Auto white balance related, bit 0 is AWB enable (inverted) | ||
34 | bits 345 seem to toggle per color gains on/off (inverted) | ||
35 | 0x78 Global control, bit 6 controls the LED (inverted) | ||
36 | -/0x80 JPEG compression ratio ? Best not touched | ||
37 | |||
38 | Register page 3/4: | ||
39 | |||
40 | Address Description | ||
41 | 0x02 Clock divider 2-63, fps =~ 60 / val. Must be a multiple of 3 on | ||
42 | the 7302, so one of 3, 6, 9, ..., except when between 6 and 12? | ||
43 | -/0x0f Master gain 1-245, low value = high gain | ||
44 | 0x10/- Master gain 0-31 | ||
45 | -/0x10 Another gain 0-15, limited influence (1-2x gain I guess) | ||
46 | 0x21 Bitfield: 0-1 unused, 2-3 vflip/hflip, 4-5 unknown, 6-7 unused | ||
47 | -/0x27 Seems to toggle various gains on / off, Setting bit 7 seems to | ||
48 | completely disable the analog amplification block. Set to 0x68 | ||
49 | for max gain, 0x14 for minimal gain. | ||
50 | */ | ||
51 | |||
52 | #define MODULE_NAME "pac7311" | ||
53 | |||
54 | #include <linux/input.h> | ||
55 | #include "gspca.h" | ||
56 | |||
57 | MODULE_AUTHOR("Thomas Kaiser thomas@kaiser-linux.li"); | ||
58 | MODULE_DESCRIPTION("Pixart PAC7311"); | ||
59 | MODULE_LICENSE("GPL"); | ||
60 | |||
61 | /* specific webcam descriptor for pac7311 */ | ||
62 | struct sd { | ||
63 | struct gspca_dev gspca_dev; /* !! must be the first item */ | ||
64 | |||
65 | unsigned char contrast; | ||
66 | unsigned char gain; | ||
67 | unsigned char exposure; | ||
68 | unsigned char autogain; | ||
69 | __u8 hflip; | ||
70 | __u8 vflip; | ||
71 | |||
72 | u8 sof_read; | ||
73 | u8 autogain_ignore_frames; | ||
74 | |||
75 | atomic_t avg_lum; | ||
76 | }; | ||
77 | |||
78 | /* V4L2 controls supported by the driver */ | ||
79 | static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val); | ||
80 | static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val); | ||
81 | static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val); | ||
82 | static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val); | ||
83 | static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val); | ||
84 | static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val); | ||
85 | static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val); | ||
86 | static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val); | ||
87 | static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val); | ||
88 | static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val); | ||
89 | static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val); | ||
90 | static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val); | ||
91 | |||
92 | static const struct ctrl sd_ctrls[] = { | ||
93 | /* This control is for both the 7302 and the 7311 */ | ||
94 | { | ||
95 | { | ||
96 | .id = V4L2_CID_CONTRAST, | ||
97 | .type = V4L2_CTRL_TYPE_INTEGER, | ||
98 | .name = "Contrast", | ||
99 | .minimum = 0, | ||
100 | #define CONTRAST_MAX 255 | ||
101 | .maximum = CONTRAST_MAX, | ||
102 | .step = 1, | ||
103 | #define CONTRAST_DEF 127 | ||
104 | .default_value = CONTRAST_DEF, | ||
105 | }, | ||
106 | .set = sd_setcontrast, | ||
107 | .get = sd_getcontrast, | ||
108 | }, | ||
109 | /* All controls below are for both the 7302 and the 7311 */ | ||
110 | { | ||
111 | { | ||
112 | .id = V4L2_CID_GAIN, | ||
113 | .type = V4L2_CTRL_TYPE_INTEGER, | ||
114 | .name = "Gain", | ||
115 | .minimum = 0, | ||
116 | #define GAIN_MAX 255 | ||
117 | .maximum = GAIN_MAX, | ||
118 | .step = 1, | ||
119 | #define GAIN_DEF 127 | ||
120 | #define GAIN_KNEE 255 /* Gain seems to cause little noise on the pac73xx */ | ||
121 | .default_value = GAIN_DEF, | ||
122 | }, | ||
123 | .set = sd_setgain, | ||
124 | .get = sd_getgain, | ||
125 | }, | ||
126 | { | ||
127 | { | ||
128 | .id = V4L2_CID_EXPOSURE, | ||
129 | .type = V4L2_CTRL_TYPE_INTEGER, | ||
130 | .name = "Exposure", | ||
131 | .minimum = 0, | ||
132 | #define EXPOSURE_MAX 255 | ||
133 | .maximum = EXPOSURE_MAX, | ||
134 | .step = 1, | ||
135 | #define EXPOSURE_DEF 16 /* 32 ms / 30 fps */ | ||
136 | #define EXPOSURE_KNEE 50 /* 100 ms / 10 fps */ | ||
137 | .default_value = EXPOSURE_DEF, | ||
138 | }, | ||
139 | .set = sd_setexposure, | ||
140 | .get = sd_getexposure, | ||
141 | }, | ||
142 | { | ||
143 | { | ||
144 | .id = V4L2_CID_AUTOGAIN, | ||
145 | .type = V4L2_CTRL_TYPE_BOOLEAN, | ||
146 | .name = "Auto Gain", | ||
147 | .minimum = 0, | ||
148 | .maximum = 1, | ||
149 | .step = 1, | ||
150 | #define AUTOGAIN_DEF 1 | ||
151 | .default_value = AUTOGAIN_DEF, | ||
152 | }, | ||
153 | .set = sd_setautogain, | ||
154 | .get = sd_getautogain, | ||
155 | }, | ||
156 | { | ||
157 | { | ||
158 | .id = V4L2_CID_HFLIP, | ||
159 | .type = V4L2_CTRL_TYPE_BOOLEAN, | ||
160 | .name = "Mirror", | ||
161 | .minimum = 0, | ||
162 | .maximum = 1, | ||
163 | .step = 1, | ||
164 | #define HFLIP_DEF 0 | ||
165 | .default_value = HFLIP_DEF, | ||
166 | }, | ||
167 | .set = sd_sethflip, | ||
168 | .get = sd_gethflip, | ||
169 | }, | ||
170 | { | ||
171 | { | ||
172 | .id = V4L2_CID_VFLIP, | ||
173 | .type = V4L2_CTRL_TYPE_BOOLEAN, | ||
174 | .name = "Vflip", | ||
175 | .minimum = 0, | ||
176 | .maximum = 1, | ||
177 | .step = 1, | ||
178 | #define VFLIP_DEF 0 | ||
179 | .default_value = VFLIP_DEF, | ||
180 | }, | ||
181 | .set = sd_setvflip, | ||
182 | .get = sd_getvflip, | ||
183 | }, | ||
184 | }; | ||
185 | |||
186 | static const struct v4l2_pix_format vga_mode[] = { | ||
187 | {160, 120, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE, | ||
188 | .bytesperline = 160, | ||
189 | .sizeimage = 160 * 120 * 3 / 8 + 590, | ||
190 | .colorspace = V4L2_COLORSPACE_JPEG, | ||
191 | .priv = 2}, | ||
192 | {320, 240, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE, | ||
193 | .bytesperline = 320, | ||
194 | .sizeimage = 320 * 240 * 3 / 8 + 590, | ||
195 | .colorspace = V4L2_COLORSPACE_JPEG, | ||
196 | .priv = 1}, | ||
197 | {640, 480, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE, | ||
198 | .bytesperline = 640, | ||
199 | .sizeimage = 640 * 480 * 3 / 8 + 590, | ||
200 | .colorspace = V4L2_COLORSPACE_JPEG, | ||
201 | .priv = 0}, | ||
202 | }; | ||
203 | |||
204 | #define LOAD_PAGE4 254 | ||
205 | #define END_OF_SEQUENCE 0 | ||
206 | |||
207 | /* pac 7311 */ | ||
208 | static const __u8 init_7311[] = { | ||
209 | 0x78, 0x40, /* Bit_0=start stream, Bit_6=LED */ | ||
210 | 0x78, 0x40, /* Bit_0=start stream, Bit_6=LED */ | ||
211 | 0x78, 0x44, /* Bit_0=start stream, Bit_6=LED */ | ||
212 | 0xff, 0x04, | ||
213 | 0x27, 0x80, | ||
214 | 0x28, 0xca, | ||
215 | 0x29, 0x53, | ||
216 | 0x2a, 0x0e, | ||
217 | 0xff, 0x01, | ||
218 | 0x3e, 0x20, | ||
219 | }; | ||
220 | |||
221 | static const __u8 start_7311[] = { | ||
222 | /* index, len, [value]* */ | ||
223 | 0xff, 1, 0x01, /* page 1 */ | ||
224 | 0x02, 43, 0x48, 0x0a, 0x40, 0x08, 0x00, 0x00, 0x08, 0x00, | ||
225 | 0x06, 0xff, 0x11, 0xff, 0x5a, 0x30, 0x90, 0x4c, | ||
226 | 0x00, 0x07, 0x00, 0x0a, 0x10, 0x00, 0xa0, 0x10, | ||
227 | 0x02, 0x00, 0x00, 0x00, 0x00, 0x0b, 0x01, 0x00, | ||
228 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
229 | 0x00, 0x00, 0x00, | ||
230 | 0x3e, 42, 0x00, 0x00, 0x78, 0x52, 0x4a, 0x52, 0x78, 0x6e, | ||
231 | 0x48, 0x46, 0x48, 0x6e, 0x5f, 0x49, 0x42, 0x49, | ||
232 | 0x5f, 0x5f, 0x49, 0x42, 0x49, 0x5f, 0x6e, 0x48, | ||
233 | 0x46, 0x48, 0x6e, 0x78, 0x52, 0x4a, 0x52, 0x78, | ||
234 | 0x00, 0x00, 0x09, 0x1b, 0x34, 0x49, 0x5c, 0x9b, | ||
235 | 0xd0, 0xff, | ||
236 | 0x78, 6, 0x44, 0x00, 0xf2, 0x01, 0x01, 0x80, | ||
237 | 0x7f, 18, 0x2a, 0x1c, 0x00, 0xc8, 0x02, 0x58, 0x03, 0x84, | ||
238 | 0x12, 0x00, 0x1a, 0x04, 0x08, 0x0c, 0x10, 0x14, | ||
239 | 0x18, 0x20, | ||
240 | 0x96, 3, 0x01, 0x08, 0x04, | ||
241 | 0xa0, 4, 0x44, 0x44, 0x44, 0x04, | ||
242 | 0xf0, 13, 0x01, 0x00, 0x00, 0x00, 0x22, 0x00, 0x20, 0x00, | ||
243 | 0x3f, 0x00, 0x0a, 0x01, 0x00, | ||
244 | 0xff, 1, 0x04, /* page 4 */ | ||
245 | 0, LOAD_PAGE4, /* load the page 4 */ | ||
246 | 0x11, 1, 0x01, | ||
247 | 0, END_OF_SEQUENCE /* end of sequence */ | ||
248 | }; | ||
249 | |||
250 | #define SKIP 0xaa | ||
251 | /* page 4 - the value SKIP says skip the index - see reg_w_page() */ | ||
252 | static const __u8 page4_7311[] = { | ||
253 | SKIP, SKIP, 0x04, 0x54, 0x07, 0x2b, 0x09, 0x0f, | ||
254 | 0x09, 0x00, SKIP, SKIP, 0x07, 0x00, 0x00, 0x62, | ||
255 | 0x08, SKIP, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, | ||
256 | 0x00, 0x00, 0x00, 0x03, 0xa0, 0x01, 0xf4, SKIP, | ||
257 | SKIP, 0x00, 0x08, SKIP, 0x03, SKIP, 0x00, 0x68, | ||
258 | 0xca, 0x10, 0x06, 0x78, 0x00, 0x00, 0x00, 0x00, | ||
259 | 0x23, 0x28, 0x04, 0x11, 0x00, 0x00 | ||
260 | }; | ||
261 | |||
262 | static void reg_w_buf(struct gspca_dev *gspca_dev, | ||
263 | __u8 index, | ||
264 | const u8 *buffer, int len) | ||
265 | { | ||
266 | int ret; | ||
267 | |||
268 | if (gspca_dev->usb_err < 0) | ||
269 | return; | ||
270 | memcpy(gspca_dev->usb_buf, buffer, len); | ||
271 | ret = usb_control_msg(gspca_dev->dev, | ||
272 | usb_sndctrlpipe(gspca_dev->dev, 0), | ||
273 | 0, /* request */ | ||
274 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | ||
275 | 0, /* value */ | ||
276 | index, gspca_dev->usb_buf, len, | ||
277 | 500); | ||
278 | if (ret < 0) { | ||
279 | err("reg_w_buf() failed index 0x%02x, error %d", | ||
280 | index, ret); | ||
281 | gspca_dev->usb_err = ret; | ||
282 | } | ||
283 | } | ||
284 | |||
285 | |||
286 | static void reg_w(struct gspca_dev *gspca_dev, | ||
287 | __u8 index, | ||
288 | __u8 value) | ||
289 | { | ||
290 | int ret; | ||
291 | |||
292 | if (gspca_dev->usb_err < 0) | ||
293 | return; | ||
294 | gspca_dev->usb_buf[0] = value; | ||
295 | ret = usb_control_msg(gspca_dev->dev, | ||
296 | usb_sndctrlpipe(gspca_dev->dev, 0), | ||
297 | 0, /* request */ | ||
298 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | ||
299 | 0, index, gspca_dev->usb_buf, 1, | ||
300 | 500); | ||
301 | if (ret < 0) { | ||
302 | err("reg_w() failed index 0x%02x, value 0x%02x, error %d", | ||
303 | index, value, ret); | ||
304 | gspca_dev->usb_err = ret; | ||
305 | } | ||
306 | } | ||
307 | |||
308 | static void reg_w_seq(struct gspca_dev *gspca_dev, | ||
309 | const __u8 *seq, int len) | ||
310 | { | ||
311 | while (--len >= 0) { | ||
312 | reg_w(gspca_dev, seq[0], seq[1]); | ||
313 | seq += 2; | ||
314 | } | ||
315 | } | ||
316 | |||
317 | /* load the beginning of a page */ | ||
318 | static void reg_w_page(struct gspca_dev *gspca_dev, | ||
319 | const __u8 *page, int len) | ||
320 | { | ||
321 | int index; | ||
322 | int ret = 0; | ||
323 | |||
324 | if (gspca_dev->usb_err < 0) | ||
325 | return; | ||
326 | for (index = 0; index < len; index++) { | ||
327 | if (page[index] == SKIP) /* skip this index */ | ||
328 | continue; | ||
329 | gspca_dev->usb_buf[0] = page[index]; | ||
330 | ret = usb_control_msg(gspca_dev->dev, | ||
331 | usb_sndctrlpipe(gspca_dev->dev, 0), | ||
332 | 0, /* request */ | ||
333 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | ||
334 | 0, index, gspca_dev->usb_buf, 1, | ||
335 | 500); | ||
336 | if (ret < 0) { | ||
337 | err("reg_w_page() failed index 0x%02x, " | ||
338 | "value 0x%02x, error %d", | ||
339 | index, page[index], ret); | ||
340 | gspca_dev->usb_err = ret; | ||
341 | break; | ||
342 | } | ||
343 | } | ||
344 | } | ||
345 | |||
346 | /* output a variable sequence */ | ||
347 | static void reg_w_var(struct gspca_dev *gspca_dev, | ||
348 | const __u8 *seq, | ||
349 | const __u8 *page4, unsigned int page4_len) | ||
350 | { | ||
351 | int index, len; | ||
352 | |||
353 | for (;;) { | ||
354 | index = *seq++; | ||
355 | len = *seq++; | ||
356 | switch (len) { | ||
357 | case END_OF_SEQUENCE: | ||
358 | return; | ||
359 | case LOAD_PAGE4: | ||
360 | reg_w_page(gspca_dev, page4, page4_len); | ||
361 | break; | ||
362 | default: | ||
363 | if (len > USB_BUF_SZ) { | ||
364 | PDEBUG(D_ERR|D_STREAM, | ||
365 | "Incorrect variable sequence"); | ||
366 | return; | ||
367 | } | ||
368 | while (len > 0) { | ||
369 | if (len < 8) { | ||
370 | reg_w_buf(gspca_dev, | ||
371 | index, seq, len); | ||
372 | seq += len; | ||
373 | break; | ||
374 | } | ||
375 | reg_w_buf(gspca_dev, index, seq, 8); | ||
376 | seq += 8; | ||
377 | index += 8; | ||
378 | len -= 8; | ||
379 | } | ||
380 | } | ||
381 | } | ||
382 | /* not reached */ | ||
383 | } | ||
384 | |||
385 | /* this function is called at probe time for pac7311 */ | ||
386 | static int sd_config(struct gspca_dev *gspca_dev, | ||
387 | const struct usb_device_id *id) | ||
388 | { | ||
389 | struct sd *sd = (struct sd *) gspca_dev; | ||
390 | struct cam *cam; | ||
391 | |||
392 | cam = &gspca_dev->cam; | ||
393 | |||
394 | PDEBUG(D_CONF, "Find Sensor PAC7311"); | ||
395 | cam->cam_mode = vga_mode; | ||
396 | cam->nmodes = ARRAY_SIZE(vga_mode); | ||
397 | |||
398 | sd->contrast = CONTRAST_DEF; | ||
399 | sd->gain = GAIN_DEF; | ||
400 | sd->exposure = EXPOSURE_DEF; | ||
401 | sd->autogain = AUTOGAIN_DEF; | ||
402 | sd->hflip = HFLIP_DEF; | ||
403 | sd->vflip = VFLIP_DEF; | ||
404 | return 0; | ||
405 | } | ||
406 | |||
407 | /* This function is used by pac7311 only */ | ||
408 | static void setcontrast(struct gspca_dev *gspca_dev) | ||
409 | { | ||
410 | struct sd *sd = (struct sd *) gspca_dev; | ||
411 | |||
412 | reg_w(gspca_dev, 0xff, 0x04); | ||
413 | reg_w(gspca_dev, 0x10, sd->contrast >> 4); | ||
414 | /* load registers to sensor (Bit 0, auto clear) */ | ||
415 | reg_w(gspca_dev, 0x11, 0x01); | ||
416 | } | ||
417 | |||
418 | static void setgain(struct gspca_dev *gspca_dev) | ||
419 | { | ||
420 | struct sd *sd = (struct sd *) gspca_dev; | ||
421 | int gain = GAIN_MAX - sd->gain; | ||
422 | |||
423 | if (gain < 1) | ||
424 | gain = 1; | ||
425 | else if (gain > 245) | ||
426 | gain = 245; | ||
427 | reg_w(gspca_dev, 0xff, 0x04); /* page 4 */ | ||
428 | reg_w(gspca_dev, 0x0e, 0x00); | ||
429 | reg_w(gspca_dev, 0x0f, gain); | ||
430 | |||
431 | /* load registers to sensor (Bit 0, auto clear) */ | ||
432 | reg_w(gspca_dev, 0x11, 0x01); | ||
433 | } | ||
434 | |||
435 | static void setexposure(struct gspca_dev *gspca_dev) | ||
436 | { | ||
437 | struct sd *sd = (struct sd *) gspca_dev; | ||
438 | __u8 reg; | ||
439 | |||
440 | /* register 2 of frame 3/4 contains the clock divider configuring the | ||
441 | no fps according to the formula: 60 / reg. sd->exposure is the | ||
442 | desired exposure time in ms. */ | ||
443 | reg = 120 * sd->exposure / 1000; | ||
444 | if (reg < 2) | ||
445 | reg = 2; | ||
446 | else if (reg > 63) | ||
447 | reg = 63; | ||
448 | |||
449 | reg_w(gspca_dev, 0xff, 0x04); /* page 4 */ | ||
450 | reg_w(gspca_dev, 0x02, reg); | ||
451 | |||
452 | /* Page 1 register 8 must always be 0x08 except when not in | ||
453 | 640x480 mode and Page3/4 reg 2 <= 3 then it must be 9 */ | ||
454 | reg_w(gspca_dev, 0xff, 0x01); | ||
455 | if (gspca_dev->cam.cam_mode[(int)gspca_dev->curr_mode].priv && | ||
456 | reg <= 3) { | ||
457 | reg_w(gspca_dev, 0x08, 0x09); | ||
458 | } else { | ||
459 | reg_w(gspca_dev, 0x08, 0x08); | ||
460 | } | ||
461 | |||
462 | /* load registers to sensor (Bit 0, auto clear) */ | ||
463 | reg_w(gspca_dev, 0x11, 0x01); | ||
464 | } | ||
465 | |||
466 | static void sethvflip(struct gspca_dev *gspca_dev) | ||
467 | { | ||
468 | struct sd *sd = (struct sd *) gspca_dev; | ||
469 | __u8 data; | ||
470 | |||
471 | reg_w(gspca_dev, 0xff, 0x04); /* page 4 */ | ||
472 | data = (sd->hflip ? 0x04 : 0x00) | (sd->vflip ? 0x08 : 0x00); | ||
473 | reg_w(gspca_dev, 0x21, data); | ||
474 | |||
475 | /* load registers to sensor (Bit 0, auto clear) */ | ||
476 | reg_w(gspca_dev, 0x11, 0x01); | ||
477 | } | ||
478 | |||
479 | /* this function is called at probe and resume time for pac7311 */ | ||
480 | static int sd_init(struct gspca_dev *gspca_dev) | ||
481 | { | ||
482 | reg_w_seq(gspca_dev, init_7311, sizeof(init_7311)/2); | ||
483 | return gspca_dev->usb_err; | ||
484 | } | ||
485 | |||
486 | static int sd_start(struct gspca_dev *gspca_dev) | ||
487 | { | ||
488 | struct sd *sd = (struct sd *) gspca_dev; | ||
489 | |||
490 | sd->sof_read = 0; | ||
491 | |||
492 | reg_w_var(gspca_dev, start_7311, | ||
493 | page4_7311, sizeof(page4_7311)); | ||
494 | setcontrast(gspca_dev); | ||
495 | setgain(gspca_dev); | ||
496 | setexposure(gspca_dev); | ||
497 | sethvflip(gspca_dev); | ||
498 | |||
499 | /* set correct resolution */ | ||
500 | switch (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) { | ||
501 | case 2: /* 160x120 pac7311 */ | ||
502 | reg_w(gspca_dev, 0xff, 0x01); | ||
503 | reg_w(gspca_dev, 0x17, 0x20); | ||
504 | reg_w(gspca_dev, 0x87, 0x10); | ||
505 | break; | ||
506 | case 1: /* 320x240 pac7311 */ | ||
507 | reg_w(gspca_dev, 0xff, 0x01); | ||
508 | reg_w(gspca_dev, 0x17, 0x30); | ||
509 | reg_w(gspca_dev, 0x87, 0x11); | ||
510 | break; | ||
511 | case 0: /* 640x480 */ | ||
512 | reg_w(gspca_dev, 0xff, 0x01); | ||
513 | reg_w(gspca_dev, 0x17, 0x00); | ||
514 | reg_w(gspca_dev, 0x87, 0x12); | ||
515 | break; | ||
516 | } | ||
517 | |||
518 | sd->sof_read = 0; | ||
519 | sd->autogain_ignore_frames = 0; | ||
520 | atomic_set(&sd->avg_lum, -1); | ||
521 | |||
522 | /* start stream */ | ||
523 | reg_w(gspca_dev, 0xff, 0x01); | ||
524 | reg_w(gspca_dev, 0x78, 0x05); | ||
525 | |||
526 | return gspca_dev->usb_err; | ||
527 | } | ||
528 | |||
529 | static void sd_stopN(struct gspca_dev *gspca_dev) | ||
530 | { | ||
531 | reg_w(gspca_dev, 0xff, 0x04); | ||
532 | reg_w(gspca_dev, 0x27, 0x80); | ||
533 | reg_w(gspca_dev, 0x28, 0xca); | ||
534 | reg_w(gspca_dev, 0x29, 0x53); | ||
535 | reg_w(gspca_dev, 0x2a, 0x0e); | ||
536 | reg_w(gspca_dev, 0xff, 0x01); | ||
537 | reg_w(gspca_dev, 0x3e, 0x20); | ||
538 | reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */ | ||
539 | reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */ | ||
540 | reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */ | ||
541 | } | ||
542 | |||
543 | /* called on streamoff with alt 0 and on disconnect for 7311 */ | ||
544 | static void sd_stop0(struct gspca_dev *gspca_dev) | ||
545 | { | ||
546 | } | ||
547 | |||
548 | /* Include pac common sof detection functions */ | ||
549 | #include "pac_common.h" | ||
550 | |||
551 | static void do_autogain(struct gspca_dev *gspca_dev) | ||
552 | { | ||
553 | struct sd *sd = (struct sd *) gspca_dev; | ||
554 | int avg_lum = atomic_read(&sd->avg_lum); | ||
555 | int desired_lum, deadzone; | ||
556 | |||
557 | if (avg_lum == -1) | ||
558 | return; | ||
559 | |||
560 | desired_lum = 200; | ||
561 | deadzone = 20; | ||
562 | |||
563 | if (sd->autogain_ignore_frames > 0) | ||
564 | sd->autogain_ignore_frames--; | ||
565 | else if (gspca_auto_gain_n_exposure(gspca_dev, avg_lum, desired_lum, | ||
566 | deadzone, GAIN_KNEE, EXPOSURE_KNEE)) | ||
567 | sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES; | ||
568 | } | ||
569 | |||
570 | /* JPEG header, part 1 */ | ||
571 | static const unsigned char pac_jpeg_header1[] = { | ||
572 | 0xff, 0xd8, /* SOI: Start of Image */ | ||
573 | |||
574 | 0xff, 0xc0, /* SOF0: Start of Frame (Baseline DCT) */ | ||
575 | 0x00, 0x11, /* length = 17 bytes (including this length field) */ | ||
576 | 0x08 /* Precision: 8 */ | ||
577 | /* 2 bytes is placed here: number of image lines */ | ||
578 | /* 2 bytes is placed here: samples per line */ | ||
579 | }; | ||
580 | |||
581 | /* JPEG header, continued */ | ||
582 | static const unsigned char pac_jpeg_header2[] = { | ||
583 | 0x03, /* Number of image components: 3 */ | ||
584 | 0x01, 0x21, 0x00, /* ID=1, Subsampling 1x1, Quantization table: 0 */ | ||
585 | 0x02, 0x11, 0x01, /* ID=2, Subsampling 2x1, Quantization table: 1 */ | ||
586 | 0x03, 0x11, 0x01, /* ID=3, Subsampling 2x1, Quantization table: 1 */ | ||
587 | |||
588 | 0xff, 0xda, /* SOS: Start Of Scan */ | ||
589 | 0x00, 0x0c, /* length = 12 bytes (including this length field) */ | ||
590 | 0x03, /* number of components: 3 */ | ||
591 | 0x01, 0x00, /* selector 1, table 0x00 */ | ||
592 | 0x02, 0x11, /* selector 2, table 0x11 */ | ||
593 | 0x03, 0x11, /* selector 3, table 0x11 */ | ||
594 | 0x00, 0x3f, /* Spectral selection: 0 .. 63 */ | ||
595 | 0x00 /* Successive approximation: 0 */ | ||
596 | }; | ||
597 | |||
598 | static void pac_start_frame(struct gspca_dev *gspca_dev, | ||
599 | __u16 lines, __u16 samples_per_line) | ||
600 | { | ||
601 | unsigned char tmpbuf[4]; | ||
602 | |||
603 | gspca_frame_add(gspca_dev, FIRST_PACKET, | ||
604 | pac_jpeg_header1, sizeof(pac_jpeg_header1)); | ||
605 | |||
606 | tmpbuf[0] = lines >> 8; | ||
607 | tmpbuf[1] = lines & 0xff; | ||
608 | tmpbuf[2] = samples_per_line >> 8; | ||
609 | tmpbuf[3] = samples_per_line & 0xff; | ||
610 | |||
611 | gspca_frame_add(gspca_dev, INTER_PACKET, | ||
612 | tmpbuf, sizeof(tmpbuf)); | ||
613 | gspca_frame_add(gspca_dev, INTER_PACKET, | ||
614 | pac_jpeg_header2, sizeof(pac_jpeg_header2)); | ||
615 | } | ||
616 | |||
617 | /* this function is run at interrupt level */ | ||
618 | static void sd_pkt_scan(struct gspca_dev *gspca_dev, | ||
619 | u8 *data, /* isoc packet */ | ||
620 | int len) /* iso packet length */ | ||
621 | { | ||
622 | struct sd *sd = (struct sd *) gspca_dev; | ||
623 | u8 *image; | ||
624 | unsigned char *sof; | ||
625 | |||
626 | sof = pac_find_sof(&sd->sof_read, data, len); | ||
627 | if (sof) { | ||
628 | int n, lum_offset, footer_length; | ||
629 | |||
630 | /* 6 bytes after the FF D9 EOF marker a number of lumination | ||
631 | bytes are send corresponding to different parts of the | ||
632 | image, the 14th and 15th byte after the EOF seem to | ||
633 | correspond to the center of the image */ | ||
634 | lum_offset = 24 + sizeof pac_sof_marker; | ||
635 | footer_length = 26; | ||
636 | |||
637 | /* Finish decoding current frame */ | ||
638 | n = (sof - data) - (footer_length + sizeof pac_sof_marker); | ||
639 | if (n < 0) { | ||
640 | gspca_dev->image_len += n; | ||
641 | n = 0; | ||
642 | } else { | ||
643 | gspca_frame_add(gspca_dev, INTER_PACKET, data, n); | ||
644 | } | ||
645 | image = gspca_dev->image; | ||
646 | if (image != NULL | ||
647 | && image[gspca_dev->image_len - 2] == 0xff | ||
648 | && image[gspca_dev->image_len - 1] == 0xd9) | ||
649 | gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0); | ||
650 | |||
651 | n = sof - data; | ||
652 | len -= n; | ||
653 | data = sof; | ||
654 | |||
655 | /* Get average lumination */ | ||
656 | if (gspca_dev->last_packet_type == LAST_PACKET && | ||
657 | n >= lum_offset) | ||
658 | atomic_set(&sd->avg_lum, data[-lum_offset] + | ||
659 | data[-lum_offset + 1]); | ||
660 | else | ||
661 | atomic_set(&sd->avg_lum, -1); | ||
662 | |||
663 | /* Start the new frame with the jpeg header */ | ||
664 | pac_start_frame(gspca_dev, | ||
665 | gspca_dev->height, gspca_dev->width); | ||
666 | } | ||
667 | gspca_frame_add(gspca_dev, INTER_PACKET, data, len); | ||
668 | } | ||
669 | |||
670 | static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val) | ||
671 | { | ||
672 | struct sd *sd = (struct sd *) gspca_dev; | ||
673 | |||
674 | sd->contrast = val; | ||
675 | if (gspca_dev->streaming) | ||
676 | setcontrast(gspca_dev); | ||
677 | return gspca_dev->usb_err; | ||
678 | } | ||
679 | |||
680 | static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val) | ||
681 | { | ||
682 | struct sd *sd = (struct sd *) gspca_dev; | ||
683 | |||
684 | *val = sd->contrast; | ||
685 | return 0; | ||
686 | } | ||
687 | |||
688 | static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val) | ||
689 | { | ||
690 | struct sd *sd = (struct sd *) gspca_dev; | ||
691 | |||
692 | sd->gain = val; | ||
693 | if (gspca_dev->streaming) | ||
694 | setgain(gspca_dev); | ||
695 | return gspca_dev->usb_err; | ||
696 | } | ||
697 | |||
698 | static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val) | ||
699 | { | ||
700 | struct sd *sd = (struct sd *) gspca_dev; | ||
701 | |||
702 | *val = sd->gain; | ||
703 | return 0; | ||
704 | } | ||
705 | |||
706 | static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val) | ||
707 | { | ||
708 | struct sd *sd = (struct sd *) gspca_dev; | ||
709 | |||
710 | sd->exposure = val; | ||
711 | if (gspca_dev->streaming) | ||
712 | setexposure(gspca_dev); | ||
713 | return gspca_dev->usb_err; | ||
714 | } | ||
715 | |||
716 | static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val) | ||
717 | { | ||
718 | struct sd *sd = (struct sd *) gspca_dev; | ||
719 | |||
720 | *val = sd->exposure; | ||
721 | return 0; | ||
722 | } | ||
723 | |||
724 | static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val) | ||
725 | { | ||
726 | struct sd *sd = (struct sd *) gspca_dev; | ||
727 | |||
728 | sd->autogain = val; | ||
729 | /* when switching to autogain set defaults to make sure | ||
730 | we are on a valid point of the autogain gain / | ||
731 | exposure knee graph, and give this change time to | ||
732 | take effect before doing autogain. */ | ||
733 | if (sd->autogain) { | ||
734 | sd->exposure = EXPOSURE_DEF; | ||
735 | sd->gain = GAIN_DEF; | ||
736 | if (gspca_dev->streaming) { | ||
737 | sd->autogain_ignore_frames = | ||
738 | PAC_AUTOGAIN_IGNORE_FRAMES; | ||
739 | setexposure(gspca_dev); | ||
740 | setgain(gspca_dev); | ||
741 | } | ||
742 | } | ||
743 | |||
744 | return gspca_dev->usb_err; | ||
745 | } | ||
746 | |||
747 | static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val) | ||
748 | { | ||
749 | struct sd *sd = (struct sd *) gspca_dev; | ||
750 | |||
751 | *val = sd->autogain; | ||
752 | return 0; | ||
753 | } | ||
754 | |||
755 | static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val) | ||
756 | { | ||
757 | struct sd *sd = (struct sd *) gspca_dev; | ||
758 | |||
759 | sd->hflip = val; | ||
760 | if (gspca_dev->streaming) | ||
761 | sethvflip(gspca_dev); | ||
762 | return gspca_dev->usb_err; | ||
763 | } | ||
764 | |||
765 | static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val) | ||
766 | { | ||
767 | struct sd *sd = (struct sd *) gspca_dev; | ||
768 | |||
769 | *val = sd->hflip; | ||
770 | return 0; | ||
771 | } | ||
772 | |||
773 | static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val) | ||
774 | { | ||
775 | struct sd *sd = (struct sd *) gspca_dev; | ||
776 | |||
777 | sd->vflip = val; | ||
778 | if (gspca_dev->streaming) | ||
779 | sethvflip(gspca_dev); | ||
780 | return gspca_dev->usb_err; | ||
781 | } | ||
782 | |||
783 | static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val) | ||
784 | { | ||
785 | struct sd *sd = (struct sd *) gspca_dev; | ||
786 | |||
787 | *val = sd->vflip; | ||
788 | return 0; | ||
789 | } | ||
790 | |||
791 | #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE) | ||
792 | static int sd_int_pkt_scan(struct gspca_dev *gspca_dev, | ||
793 | u8 *data, /* interrupt packet data */ | ||
794 | int len) /* interrupt packet length */ | ||
795 | { | ||
796 | int ret = -EINVAL; | ||
797 | u8 data0, data1; | ||
798 | |||
799 | if (len == 2) { | ||
800 | data0 = data[0]; | ||
801 | data1 = data[1]; | ||
802 | if ((data0 == 0x00 && data1 == 0x11) || | ||
803 | (data0 == 0x22 && data1 == 0x33) || | ||
804 | (data0 == 0x44 && data1 == 0x55) || | ||
805 | (data0 == 0x66 && data1 == 0x77) || | ||
806 | (data0 == 0x88 && data1 == 0x99) || | ||
807 | (data0 == 0xaa && data1 == 0xbb) || | ||
808 | (data0 == 0xcc && data1 == 0xdd) || | ||
809 | (data0 == 0xee && data1 == 0xff)) { | ||
810 | input_report_key(gspca_dev->input_dev, KEY_CAMERA, 1); | ||
811 | input_sync(gspca_dev->input_dev); | ||
812 | input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0); | ||
813 | input_sync(gspca_dev->input_dev); | ||
814 | ret = 0; | ||
815 | } | ||
816 | } | ||
817 | |||
818 | return ret; | ||
819 | } | ||
820 | #endif | ||
821 | |||
822 | /* sub-driver description for pac7311 */ | ||
823 | static const struct sd_desc sd_desc = { | ||
824 | .name = MODULE_NAME, | ||
825 | .ctrls = sd_ctrls, | ||
826 | .nctrls = ARRAY_SIZE(sd_ctrls), | ||
827 | .config = sd_config, | ||
828 | .init = sd_init, | ||
829 | .start = sd_start, | ||
830 | .stopN = sd_stopN, | ||
831 | .stop0 = sd_stop0, | ||
832 | .pkt_scan = sd_pkt_scan, | ||
833 | .dq_callback = do_autogain, | ||
834 | #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE) | ||
835 | .int_pkt_scan = sd_int_pkt_scan, | ||
836 | #endif | ||
837 | }; | ||
838 | |||
839 | /* -- module initialisation -- */ | ||
840 | static const struct usb_device_id device_table[] = { | ||
841 | {USB_DEVICE(0x093a, 0x2600)}, | ||
842 | {USB_DEVICE(0x093a, 0x2601)}, | ||
843 | {USB_DEVICE(0x093a, 0x2603)}, | ||
844 | {USB_DEVICE(0x093a, 0x2608)}, | ||
845 | {USB_DEVICE(0x093a, 0x260e)}, | ||
846 | {USB_DEVICE(0x093a, 0x260f)}, | ||
847 | {} | ||
848 | }; | ||
849 | MODULE_DEVICE_TABLE(usb, device_table); | ||
850 | |||
851 | /* -- device connect -- */ | ||
852 | static int sd_probe(struct usb_interface *intf, | ||
853 | const struct usb_device_id *id) | ||
854 | { | ||
855 | return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd), | ||
856 | THIS_MODULE); | ||
857 | } | ||
858 | |||
859 | static struct usb_driver sd_driver = { | ||
860 | .name = MODULE_NAME, | ||
861 | .id_table = device_table, | ||
862 | .probe = sd_probe, | ||
863 | .disconnect = gspca_disconnect, | ||
864 | #ifdef CONFIG_PM | ||
865 | .suspend = gspca_suspend, | ||
866 | .resume = gspca_resume, | ||
867 | #endif | ||
868 | }; | ||
869 | |||
870 | /* -- module insert / remove -- */ | ||
871 | static int __init sd_mod_init(void) | ||
872 | { | ||
873 | return usb_register(&sd_driver); | ||
874 | } | ||
875 | static void __exit sd_mod_exit(void) | ||
876 | { | ||
877 | usb_deregister(&sd_driver); | ||
878 | } | ||
879 | |||
880 | module_init(sd_mod_init); | ||
881 | module_exit(sd_mod_exit); | ||