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6a7eba24 JFM |
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 | ||
327c4abf HG |
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 | |
038ec7c7 | 42 | the 7302, so one of 3, 6, 9, ..., except when between 6 and 12? |
327c4abf HG |
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 | |
8a5b2e90 HG |
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. | |
327c4abf HG |
50 | */ |
51 | ||
6a7eba24 JFM |
52 | #define MODULE_NAME "pac7311" |
53 | ||
32ea3e44 | 54 | #include <linux/input.h> |
6a7eba24 JFM |
55 | #include "gspca.h" |
56 | ||
6a7eba24 JFM |
57 | MODULE_AUTHOR("Thomas Kaiser thomas@kaiser-linux.li"); |
58 | MODULE_DESCRIPTION("Pixart PAC7311"); | |
59 | MODULE_LICENSE("GPL"); | |
60 | ||
1408b847 | 61 | /* specific webcam descriptor for pac7311 */ |
6a7eba24 JFM |
62 | struct sd { |
63 | struct gspca_dev gspca_dev; /* !! must be the first item */ | |
64 | ||
6a7eba24 | 65 | unsigned char contrast; |
8a5b2e90 HG |
66 | unsigned char gain; |
67 | unsigned char exposure; | |
6a7eba24 | 68 | unsigned char autogain; |
41b46974 JFM |
69 | __u8 hflip; |
70 | __u8 vflip; | |
49b57dba | 71 | |
327c4abf | 72 | u8 sof_read; |
327c4abf HG |
73 | u8 autogain_ignore_frames; |
74 | ||
75 | atomic_t avg_lum; | |
6a7eba24 JFM |
76 | }; |
77 | ||
78 | /* V4L2 controls supported by the driver */ | |
6a7eba24 JFM |
79 | static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val); |
80 | static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val); | |
6a7eba24 JFM |
81 | static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val); |
82 | static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val); | |
41b46974 JFM |
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); | |
8a5b2e90 HG |
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); | |
6a7eba24 | 91 | |
7e64dc4c | 92 | static const struct ctrl sd_ctrls[] = { |
8a5b2e90 | 93 | /* This control is for both the 7302 and the 7311 */ |
6a7eba24 JFM |
94 | { |
95 | { | |
96 | .id = V4L2_CID_CONTRAST, | |
97 | .type = V4L2_CTRL_TYPE_INTEGER, | |
98 | .name = "Contrast", | |
99 | .minimum = 0, | |
dff6d321 JFM |
100 | #define CONTRAST_MAX 255 |
101 | .maximum = CONTRAST_MAX, | |
6a7eba24 | 102 | .step = 1, |
327c4abf | 103 | #define CONTRAST_DEF 127 |
a5ae2062 | 104 | .default_value = CONTRAST_DEF, |
6a7eba24 JFM |
105 | }, |
106 | .set = sd_setcontrast, | |
107 | .get = sd_getcontrast, | |
108 | }, | |
8a5b2e90 HG |
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 | }, | |
6a7eba24 JFM |
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, | |
a5ae2062 JFM |
150 | #define AUTOGAIN_DEF 1 |
151 | .default_value = AUTOGAIN_DEF, | |
6a7eba24 JFM |
152 | }, |
153 | .set = sd_setautogain, | |
154 | .get = sd_getautogain, | |
155 | }, | |
41b46974 JFM |
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 | }, | |
6a7eba24 JFM |
184 | }; |
185 | ||
cc611b8a | 186 | static const struct v4l2_pix_format vga_mode[] = { |
f75c4950 | 187 | {160, 120, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE, |
c2446b3e JFM |
188 | .bytesperline = 160, |
189 | .sizeimage = 160 * 120 * 3 / 8 + 590, | |
190 | .colorspace = V4L2_COLORSPACE_JPEG, | |
191 | .priv = 2}, | |
f75c4950 | 192 | {320, 240, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE, |
c2446b3e JFM |
193 | .bytesperline = 320, |
194 | .sizeimage = 320 * 240 * 3 / 8 + 590, | |
195 | .colorspace = V4L2_COLORSPACE_JPEG, | |
196 | .priv = 1}, | |
f75c4950 | 197 | {640, 480, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE, |
c2446b3e JFM |
198 | .bytesperline = 640, |
199 | .sizeimage = 640 * 480 * 3 / 8 + 590, | |
200 | .colorspace = V4L2_COLORSPACE_JPEG, | |
201 | .priv = 0}, | |
6a7eba24 JFM |
202 | }; |
203 | ||
5a2e8d9f MN |
204 | #define LOAD_PAGE4 254 |
205 | #define END_OF_SEQUENCE 0 | |
206 | ||
49b57dba | 207 | /* pac 7311 */ |
271315a9 | 208 | static const __u8 init_7311[] = { |
327c4abf HG |
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 */ | |
49b57dba JFM |
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]* */ | |
285a4f6c JFM |
223 | 0xff, 1, 0x01, /* page 1 */ |
224 | 0x02, 43, 0x48, 0x0a, 0x40, 0x08, 0x00, 0x00, 0x08, 0x00, | |
49b57dba JFM |
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, | |
285a4f6c | 230 | 0x3e, 42, 0x00, 0x00, 0x78, 0x52, 0x4a, 0x52, 0x78, 0x6e, |
49b57dba JFM |
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, | |
285a4f6c | 244 | 0xff, 1, 0x04, /* page 4 */ |
5a2e8d9f | 245 | 0, LOAD_PAGE4, /* load the page 4 */ |
49b57dba | 246 | 0x11, 1, 0x01, |
5a2e8d9f | 247 | 0, END_OF_SEQUENCE /* end of sequence */ |
49b57dba JFM |
248 | }; |
249 | ||
1408b847 | 250 | #define SKIP 0xaa |
ff75e99c | 251 | /* page 4 - the value SKIP says skip the index - see reg_w_page() */ |
49b57dba | 252 | static const __u8 page4_7311[] = { |
ff75e99c MN |
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, | |
49b57dba JFM |
258 | 0xca, 0x10, 0x06, 0x78, 0x00, 0x00, 0x00, 0x00, |
259 | 0x23, 0x28, 0x04, 0x11, 0x00, 0x00 | |
260 | }; | |
261 | ||
14799f6c | 262 | static void reg_w_buf(struct gspca_dev *gspca_dev, |
49b57dba | 263 | __u8 index, |
0aeb5ec7 | 264 | const u8 *buffer, int len) |
6a7eba24 | 265 | { |
4f7309e2 MN |
266 | int ret; |
267 | ||
14799f6c JFM |
268 | if (gspca_dev->usb_err < 0) |
269 | return; | |
739570bb | 270 | memcpy(gspca_dev->usb_buf, buffer, len); |
4f7309e2 | 271 | ret = usb_control_msg(gspca_dev->dev, |
739570bb | 272 | usb_sndctrlpipe(gspca_dev->dev, 0), |
a1317135 | 273 | 0, /* request */ |
6a7eba24 | 274 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
bf7f0b98 | 275 | 0, /* value */ |
739570bb | 276 | index, gspca_dev->usb_buf, len, |
6a7eba24 | 277 | 500); |
14799f6c | 278 | if (ret < 0) { |
0b656321 JFM |
279 | err("reg_w_buf() failed index 0x%02x, error %d", |
280 | index, ret); | |
14799f6c JFM |
281 | gspca_dev->usb_err = ret; |
282 | } | |
6a7eba24 JFM |
283 | } |
284 | ||
6a7eba24 | 285 | |
14799f6c | 286 | static void reg_w(struct gspca_dev *gspca_dev, |
49b57dba | 287 | __u8 index, |
739570bb | 288 | __u8 value) |
6a7eba24 | 289 | { |
4f7309e2 MN |
290 | int ret; |
291 | ||
14799f6c JFM |
292 | if (gspca_dev->usb_err < 0) |
293 | return; | |
739570bb | 294 | gspca_dev->usb_buf[0] = value; |
4f7309e2 | 295 | ret = usb_control_msg(gspca_dev->dev, |
739570bb | 296 | usb_sndctrlpipe(gspca_dev->dev, 0), |
bf7f0b98 JFM |
297 | 0, /* request */ |
298 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
8a5b2e90 | 299 | 0, index, gspca_dev->usb_buf, 1, |
bf7f0b98 | 300 | 500); |
14799f6c | 301 | if (ret < 0) { |
0b656321 JFM |
302 | err("reg_w() failed index 0x%02x, value 0x%02x, error %d", |
303 | index, value, ret); | |
14799f6c JFM |
304 | gspca_dev->usb_err = ret; |
305 | } | |
6a7eba24 JFM |
306 | } |
307 | ||
14799f6c | 308 | static void reg_w_seq(struct gspca_dev *gspca_dev, |
49b57dba JFM |
309 | const __u8 *seq, int len) |
310 | { | |
311 | while (--len >= 0) { | |
14799f6c | 312 | reg_w(gspca_dev, seq[0], seq[1]); |
49b57dba JFM |
313 | seq += 2; |
314 | } | |
315 | } | |
316 | ||
317 | /* load the beginning of a page */ | |
14799f6c | 318 | static void reg_w_page(struct gspca_dev *gspca_dev, |
49b57dba JFM |
319 | const __u8 *page, int len) |
320 | { | |
321 | int index; | |
b1784b33 | 322 | int ret = 0; |
49b57dba | 323 | |
14799f6c JFM |
324 | if (gspca_dev->usb_err < 0) |
325 | return; | |
49b57dba | 326 | for (index = 0; index < len; index++) { |
ff75e99c | 327 | if (page[index] == SKIP) /* skip this index */ |
49b57dba JFM |
328 | continue; |
329 | gspca_dev->usb_buf[0] = page[index]; | |
4f7309e2 | 330 | ret = usb_control_msg(gspca_dev->dev, |
49b57dba JFM |
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); | |
b1784b33 | 336 | if (ret < 0) { |
0b656321 JFM |
337 | err("reg_w_page() failed index 0x%02x, " |
338 | "value 0x%02x, error %d", | |
339 | index, page[index], ret); | |
14799f6c | 340 | gspca_dev->usb_err = ret; |
b1784b33 MN |
341 | break; |
342 | } | |
49b57dba JFM |
343 | } |
344 | } | |
345 | ||
346 | /* output a variable sequence */ | |
14799f6c | 347 | static void reg_w_var(struct gspca_dev *gspca_dev, |
1408b847 | 348 | const __u8 *seq, |
1408b847 | 349 | const __u8 *page4, unsigned int page4_len) |
49b57dba JFM |
350 | { |
351 | int index, len; | |
352 | ||
353 | for (;;) { | |
354 | index = *seq++; | |
355 | len = *seq++; | |
356 | switch (len) { | |
5a2e8d9f | 357 | case END_OF_SEQUENCE: |
14799f6c | 358 | return; |
5a2e8d9f | 359 | case LOAD_PAGE4: |
14799f6c | 360 | reg_w_page(gspca_dev, page4, page4_len); |
49b57dba | 361 | break; |
49b57dba | 362 | default: |
24067bb5 | 363 | if (len > USB_BUF_SZ) { |
49b57dba JFM |
364 | PDEBUG(D_ERR|D_STREAM, |
365 | "Incorrect variable sequence"); | |
14799f6c | 366 | return; |
49b57dba JFM |
367 | } |
368 | while (len > 0) { | |
369 | if (len < 8) { | |
14799f6c | 370 | reg_w_buf(gspca_dev, |
b1784b33 | 371 | index, seq, len); |
49b57dba JFM |
372 | seq += len; |
373 | break; | |
374 | } | |
14799f6c | 375 | reg_w_buf(gspca_dev, index, seq, 8); |
49b57dba JFM |
376 | seq += 8; |
377 | index += 8; | |
378 | len -= 8; | |
379 | } | |
380 | } | |
381 | } | |
382 | /* not reached */ | |
383 | } | |
384 | ||
1408b847 | 385 | /* this function is called at probe time for pac7311 */ |
6a7eba24 JFM |
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; | |
6a7eba24 JFM |
390 | struct cam *cam; |
391 | ||
6a7eba24 | 392 | cam = &gspca_dev->cam; |
49b57dba | 393 | |
1408b847 MN |
394 | PDEBUG(D_CONF, "Find Sensor PAC7311"); |
395 | cam->cam_mode = vga_mode; | |
396 | cam->nmodes = ARRAY_SIZE(vga_mode); | |
6a7eba24 | 397 | |
a5ae2062 | 398 | sd->contrast = CONTRAST_DEF; |
8a5b2e90 HG |
399 | sd->gain = GAIN_DEF; |
400 | sd->exposure = EXPOSURE_DEF; | |
a5ae2062 | 401 | sd->autogain = AUTOGAIN_DEF; |
4a18625e JFM |
402 | sd->hflip = HFLIP_DEF; |
403 | sd->vflip = VFLIP_DEF; | |
6a7eba24 JFM |
404 | return 0; |
405 | } | |
406 | ||
8a5b2e90 | 407 | /* This function is used by pac7311 only */ |
14799f6c | 408 | static void setcontrast(struct gspca_dev *gspca_dev) |
6a7eba24 JFM |
409 | { |
410 | struct sd *sd = (struct sd *) gspca_dev; | |
327c4abf | 411 | |
14799f6c JFM |
412 | reg_w(gspca_dev, 0xff, 0x04); |
413 | reg_w(gspca_dev, 0x10, sd->contrast >> 4); | |
6a7eba24 | 414 | /* load registers to sensor (Bit 0, auto clear) */ |
14799f6c | 415 | reg_w(gspca_dev, 0x11, 0x01); |
6a7eba24 JFM |
416 | } |
417 | ||
14799f6c | 418 | static void setgain(struct gspca_dev *gspca_dev) |
6a7eba24 JFM |
419 | { |
420 | struct sd *sd = (struct sd *) gspca_dev; | |
1408b847 MN |
421 | int gain = GAIN_MAX - sd->gain; |
422 | ||
423 | if (gain < 1) | |
424 | gain = 1; | |
425 | else if (gain > 245) | |
426 | gain = 245; | |
14799f6c JFM |
427 | reg_w(gspca_dev, 0xff, 0x04); /* page 4 */ |
428 | reg_w(gspca_dev, 0x0e, 0x00); | |
429 | reg_w(gspca_dev, 0x0f, gain); | |
6a7eba24 | 430 | |
6a7eba24 | 431 | /* load registers to sensor (Bit 0, auto clear) */ |
14799f6c | 432 | reg_w(gspca_dev, 0x11, 0x01); |
6a7eba24 JFM |
433 | } |
434 | ||
14799f6c | 435 | static void setexposure(struct gspca_dev *gspca_dev) |
6a7eba24 JFM |
436 | { |
437 | struct sd *sd = (struct sd *) gspca_dev; | |
8a5b2e90 HG |
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; | |
6a7eba24 | 448 | |
14799f6c JFM |
449 | reg_w(gspca_dev, 0xff, 0x04); /* page 4 */ |
450 | reg_w(gspca_dev, 0x02, reg); | |
451 | ||
1408b847 MN |
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 */ | |
14799f6c | 454 | reg_w(gspca_dev, 0xff, 0x01); |
1408b847 | 455 | if (gspca_dev->cam.cam_mode[(int)gspca_dev->curr_mode].priv && |
b1784b33 | 456 | reg <= 3) { |
14799f6c | 457 | reg_w(gspca_dev, 0x08, 0x09); |
b1784b33 | 458 | } else { |
14799f6c | 459 | reg_w(gspca_dev, 0x08, 0x08); |
b1784b33 | 460 | } |
1408b847 | 461 | |
8a5b2e90 | 462 | /* load registers to sensor (Bit 0, auto clear) */ |
14799f6c | 463 | reg_w(gspca_dev, 0x11, 0x01); |
6a7eba24 JFM |
464 | } |
465 | ||
14799f6c | 466 | static void sethvflip(struct gspca_dev *gspca_dev) |
41b46974 JFM |
467 | { |
468 | struct sd *sd = (struct sd *) gspca_dev; | |
469 | __u8 data; | |
470 | ||
14799f6c | 471 | reg_w(gspca_dev, 0xff, 0x04); /* page 4 */ |
1408b847 | 472 | data = (sd->hflip ? 0x04 : 0x00) | (sd->vflip ? 0x08 : 0x00); |
14799f6c JFM |
473 | reg_w(gspca_dev, 0x21, data); |
474 | ||
8a5b2e90 | 475 | /* load registers to sensor (Bit 0, auto clear) */ |
14799f6c | 476 | reg_w(gspca_dev, 0x11, 0x01); |
41b46974 JFM |
477 | } |
478 | ||
1408b847 | 479 | /* this function is called at probe and resume time for pac7311 */ |
012d6b02 | 480 | static int sd_init(struct gspca_dev *gspca_dev) |
6a7eba24 | 481 | { |
14799f6c JFM |
482 | reg_w_seq(gspca_dev, init_7311, sizeof(init_7311)/2); |
483 | return gspca_dev->usb_err; | |
6a7eba24 JFM |
484 | } |
485 | ||
72ab97ce | 486 | static int sd_start(struct gspca_dev *gspca_dev) |
6a7eba24 | 487 | { |
e52a5574 JFM |
488 | struct sd *sd = (struct sd *) gspca_dev; |
489 | ||
327c4abf | 490 | sd->sof_read = 0; |
739570bb | 491 | |
14799f6c | 492 | reg_w_var(gspca_dev, start_7311, |
1408b847 | 493 | page4_7311, sizeof(page4_7311)); |
14799f6c JFM |
494 | setcontrast(gspca_dev); |
495 | setgain(gspca_dev); | |
496 | setexposure(gspca_dev); | |
497 | sethvflip(gspca_dev); | |
6a7eba24 JFM |
498 | |
499 | /* set correct resolution */ | |
c2446b3e | 500 | switch (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) { |
49b57dba | 501 | case 2: /* 160x120 pac7311 */ |
14799f6c JFM |
502 | reg_w(gspca_dev, 0xff, 0x01); |
503 | reg_w(gspca_dev, 0x17, 0x20); | |
504 | reg_w(gspca_dev, 0x87, 0x10); | |
6a7eba24 | 505 | break; |
49b57dba | 506 | case 1: /* 320x240 pac7311 */ |
14799f6c JFM |
507 | reg_w(gspca_dev, 0xff, 0x01); |
508 | reg_w(gspca_dev, 0x17, 0x30); | |
509 | reg_w(gspca_dev, 0x87, 0x11); | |
6a7eba24 JFM |
510 | break; |
511 | case 0: /* 640x480 */ | |
14799f6c JFM |
512 | reg_w(gspca_dev, 0xff, 0x01); |
513 | reg_w(gspca_dev, 0x17, 0x00); | |
514 | reg_w(gspca_dev, 0x87, 0x12); | |
6a7eba24 JFM |
515 | break; |
516 | } | |
517 | ||
327c4abf HG |
518 | sd->sof_read = 0; |
519 | sd->autogain_ignore_frames = 0; | |
520 | atomic_set(&sd->avg_lum, -1); | |
8a5b2e90 HG |
521 | |
522 | /* start stream */ | |
14799f6c JFM |
523 | reg_w(gspca_dev, 0xff, 0x01); |
524 | reg_w(gspca_dev, 0x78, 0x05); | |
1408b847 | 525 | |
14799f6c | 526 | return gspca_dev->usb_err; |
6a7eba24 JFM |
527 | } |
528 | ||
529 | static void sd_stopN(struct gspca_dev *gspca_dev) | |
530 | { | |
14799f6c JFM |
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 */ | |
6a7eba24 JFM |
541 | } |
542 | ||
1408b847 | 543 | /* called on streamoff with alt 0 and on disconnect for 7311 */ |
6a7eba24 JFM |
544 | static void sd_stop0(struct gspca_dev *gspca_dev) |
545 | { | |
546 | } | |
547 | ||
8a5b2e90 HG |
548 | /* Include pac common sof detection functions */ |
549 | #include "pac_common.h" | |
550 | ||
cebf3b67 | 551 | static void do_autogain(struct gspca_dev *gspca_dev) |
6a7eba24 | 552 | { |
8a5b2e90 HG |
553 | struct sd *sd = (struct sd *) gspca_dev; |
554 | int avg_lum = atomic_read(&sd->avg_lum); | |
038ec7c7 | 555 | int desired_lum, deadzone; |
8a5b2e90 HG |
556 | |
557 | if (avg_lum == -1) | |
558 | return; | |
559 | ||
1408b847 MN |
560 | desired_lum = 200; |
561 | deadzone = 20; | |
8a5b2e90 HG |
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, | |
038ec7c7 | 566 | deadzone, GAIN_KNEE, EXPOSURE_KNEE)) |
8a5b2e90 | 567 | sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES; |
6a7eba24 JFM |
568 | } |
569 | ||
56f6f558 | 570 | /* JPEG header, part 1 */ |
cc409c0e | 571 | static const unsigned char pac_jpeg_header1[] = { |
56f6f558 MN |
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 */ | |
327c4abf HG |
579 | }; |
580 | ||
56f6f558 | 581 | /* JPEG header, continued */ |
cc409c0e | 582 | static const unsigned char pac_jpeg_header2[] = { |
56f6f558 MN |
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 */ | |
327c4abf HG |
596 | }; |
597 | ||
cc409c0e | 598 | static void pac_start_frame(struct gspca_dev *gspca_dev, |
cc409c0e MN |
599 | __u16 lines, __u16 samples_per_line) |
600 | { | |
601 | unsigned char tmpbuf[4]; | |
602 | ||
76dd272b | 603 | gspca_frame_add(gspca_dev, FIRST_PACKET, |
cc409c0e MN |
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 | ||
76dd272b | 611 | gspca_frame_add(gspca_dev, INTER_PACKET, |
cc409c0e | 612 | tmpbuf, sizeof(tmpbuf)); |
76dd272b | 613 | gspca_frame_add(gspca_dev, INTER_PACKET, |
cc409c0e MN |
614 | pac_jpeg_header2, sizeof(pac_jpeg_header2)); |
615 | } | |
616 | ||
e52a5574 | 617 | /* this function is run at interrupt level */ |
6a7eba24 | 618 | static void sd_pkt_scan(struct gspca_dev *gspca_dev, |
76dd272b | 619 | u8 *data, /* isoc packet */ |
6a7eba24 JFM |
620 | int len) /* iso packet length */ |
621 | { | |
622 | struct sd *sd = (struct sd *) gspca_dev; | |
b192ca98 | 623 | u8 *image; |
327c4abf HG |
624 | unsigned char *sof; |
625 | ||
a6b69e40 | 626 | sof = pac_find_sof(&sd->sof_read, data, len); |
327c4abf | 627 | if (sof) { |
327c4abf HG |
628 | int n, lum_offset, footer_length; |
629 | ||
1408b847 MN |
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; | |
327c4abf HG |
636 | |
637 | /* Finish decoding current frame */ | |
638 | n = (sof - data) - (footer_length + sizeof pac_sof_marker); | |
639 | if (n < 0) { | |
b192ca98 | 640 | gspca_dev->image_len += n; |
327c4abf | 641 | n = 0; |
b192ca98 JFM |
642 | } else { |
643 | gspca_frame_add(gspca_dev, INTER_PACKET, data, n); | |
327c4abf | 644 | } |
f7059eaa JFM |
645 | image = gspca_dev->image; |
646 | if (image != NULL | |
b192ca98 JFM |
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); | |
327c4abf HG |
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 && | |
038ec7c7 HG |
657 | n >= lum_offset) |
658 | atomic_set(&sd->avg_lum, data[-lum_offset] + | |
327c4abf | 659 | data[-lum_offset + 1]); |
038ec7c7 | 660 | else |
327c4abf | 661 | atomic_set(&sd->avg_lum, -1); |
327c4abf HG |
662 | |
663 | /* Start the new frame with the jpeg header */ | |
b192ca98 | 664 | pac_start_frame(gspca_dev, |
1408b847 | 665 | gspca_dev->height, gspca_dev->width); |
6a7eba24 | 666 | } |
76dd272b | 667 | gspca_frame_add(gspca_dev, INTER_PACKET, data, len); |
6a7eba24 JFM |
668 | } |
669 | ||
6a7eba24 JFM |
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; | |
780e3121 | 675 | if (gspca_dev->streaming) |
1408b847 | 676 | setcontrast(gspca_dev); |
14799f6c | 677 | return gspca_dev->usb_err; |
6a7eba24 JFM |
678 | } |
679 | ||
680 | static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val) | |
681 | { | |
682 | struct sd *sd = (struct sd *) gspca_dev; | |
683 | ||
6a7eba24 JFM |
684 | *val = sd->contrast; |
685 | return 0; | |
686 | } | |
687 | ||
8a5b2e90 HG |
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); | |
14799f6c | 695 | return gspca_dev->usb_err; |
8a5b2e90 HG |
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); | |
14799f6c | 713 | return gspca_dev->usb_err; |
8a5b2e90 HG |
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 | ||
6a7eba24 JFM |
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; | |
8a5b2e90 HG |
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 | } | |
327c4abf | 743 | |
14799f6c | 744 | return gspca_dev->usb_err; |
6a7eba24 JFM |
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 | ||
41b46974 JFM |
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); | |
14799f6c | 762 | return gspca_dev->usb_err; |
41b46974 JFM |
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); | |
14799f6c | 780 | return gspca_dev->usb_err; |
41b46974 JFM |
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 | ||
2856643e | 791 | #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE) |
32ea3e44 HG |
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 | ||
1408b847 | 822 | /* sub-driver description for pac7311 */ |
aabcdfb6 | 823 | static const struct sd_desc sd_desc = { |
6a7eba24 JFM |
824 | .name = MODULE_NAME, |
825 | .ctrls = sd_ctrls, | |
826 | .nctrls = ARRAY_SIZE(sd_ctrls), | |
827 | .config = sd_config, | |
012d6b02 | 828 | .init = sd_init, |
6a7eba24 JFM |
829 | .start = sd_start, |
830 | .stopN = sd_stopN, | |
831 | .stop0 = sd_stop0, | |
6a7eba24 | 832 | .pkt_scan = sd_pkt_scan, |
cebf3b67 | 833 | .dq_callback = do_autogain, |
2856643e | 834 | #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE) |
32ea3e44 HG |
835 | .int_pkt_scan = sd_int_pkt_scan, |
836 | #endif | |
6a7eba24 JFM |
837 | }; |
838 | ||
839 | /* -- module initialisation -- */ | |
95c967c1 | 840 | static const struct usb_device_id device_table[] = { |
1408b847 MN |
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)}, | |
6a7eba24 JFM |
847 | {} |
848 | }; | |
849 | MODULE_DEVICE_TABLE(usb, device_table); | |
850 | ||
851 | /* -- device connect -- */ | |
95c967c1 | 852 | static int sd_probe(struct usb_interface *intf, |
6a7eba24 JFM |
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, | |
6a709749 JFM |
864 | #ifdef CONFIG_PM |
865 | .suspend = gspca_suspend, | |
866 | .resume = gspca_resume, | |
867 | #endif | |
6a7eba24 JFM |
868 | }; |
869 | ||
870 | /* -- module insert / remove -- */ | |
871 | static int __init sd_mod_init(void) | |
872 | { | |
54826437 | 873 | return usb_register(&sd_driver); |
6a7eba24 JFM |
874 | } |
875 | static void __exit sd_mod_exit(void) | |
876 | { | |
877 | usb_deregister(&sd_driver); | |
6a7eba24 JFM |
878 | } |
879 | ||
880 | module_init(sd_mod_init); | |
881 | module_exit(sd_mod_exit); |