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Commit | Line | Data |
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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. | |
6a7eba24 JFM |
16 | */ |
17 | ||
327c4abf | 18 | /* Some documentation about various registers as determined by trial and error. |
4b8ceb6c HG |
19 | * |
20 | * Register page 1: | |
21 | * | |
22 | * Address Description | |
23 | * 0x08 Unknown compressor related, must always be 8 except when not | |
24 | * in 640x480 resolution and page 4 reg 2 <= 3 then set it to 9 ! | |
25 | * 0x1b Auto white balance related, bit 0 is AWB enable (inverted) | |
26 | * bits 345 seem to toggle per color gains on/off (inverted) | |
27 | * 0x78 Global control, bit 6 controls the LED (inverted) | |
282ddfbc HG |
28 | * 0x80 Compression balance, interesting settings: |
29 | * 0x01 Use this to allow the camera to switch to higher compr. | |
30 | * on the fly. Needed to stay within bandwidth @ 640x480@30 | |
31 | * 0x1c From usb captures under Windows for 640x480 | |
32 | * 0x2a Values >= this switch the camera to a lower compression, | |
33 | * using the same table for both luminance and chrominance. | |
34 | * This gives a sharper picture. Usable only at 640x480@ < | |
35 | * 15 fps or 320x240 / 160x120. Note currently the driver | |
36 | * does not use this as the quality gain is small and the | |
37 | * generated JPG-s are only understood by v4l-utils >= 0.8.9 | |
38 | * 0x3f From usb captures under Windows for 320x240 | |
39 | * 0x69 From usb captures under Windows for 160x120 | |
4b8ceb6c HG |
40 | * |
41 | * Register page 4: | |
42 | * | |
43 | * Address Description | |
44 | * 0x02 Clock divider 2-63, fps =~ 60 / val. Must be a multiple of 3 on | |
45 | * the 7302, so one of 3, 6, 9, ..., except when between 6 and 12? | |
46 | * 0x0f Master gain 1-245, low value = high gain | |
47 | * 0x10 Another gain 0-15, limited influence (1-2x gain I guess) | |
48 | * 0x21 Bitfield: 0-1 unused, 2-3 vflip/hflip, 4-5 unknown, 6-7 unused | |
6a6c70b8 HG |
49 | * Note setting vflip disabled leads to a much lower image quality, |
50 | * so we always vflip, and tell userspace to flip it back | |
4b8ceb6c HG |
51 | * 0x27 Seems to toggle various gains on / off, Setting bit 7 seems to |
52 | * completely disable the analog amplification block. Set to 0x68 | |
53 | * for max gain, 0x14 for minimal gain. | |
54 | */ | |
327c4abf | 55 | |
133a9fe9 JP |
56 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
57 | ||
6a7eba24 JFM |
58 | #define MODULE_NAME "pac7311" |
59 | ||
32ea3e44 | 60 | #include <linux/input.h> |
6a7eba24 | 61 | #include "gspca.h" |
a5340ce5 HG |
62 | /* Include pac common sof detection functions */ |
63 | #include "pac_common.h" | |
6a7eba24 | 64 | |
43f52bf2 HG |
65 | #define PAC7311_GAIN_DEFAULT 122 |
66 | #define PAC7311_EXPOSURE_DEFAULT 3 /* 20 fps, avoid using high compr. */ | |
67 | ||
6a7eba24 JFM |
68 | MODULE_AUTHOR("Thomas Kaiser thomas@kaiser-linux.li"); |
69 | MODULE_DESCRIPTION("Pixart PAC7311"); | |
70 | MODULE_LICENSE("GPL"); | |
71 | ||
6a7eba24 JFM |
72 | struct sd { |
73 | struct gspca_dev gspca_dev; /* !! must be the first item */ | |
43f52bf2 HG |
74 | |
75 | struct v4l2_ctrl *contrast; | |
6a6c70b8 | 76 | struct v4l2_ctrl *hflip; |
49b57dba | 77 | |
327c4abf | 78 | u8 sof_read; |
327c4abf HG |
79 | u8 autogain_ignore_frames; |
80 | ||
81 | atomic_t avg_lum; | |
6a7eba24 JFM |
82 | }; |
83 | ||
cc611b8a | 84 | static const struct v4l2_pix_format vga_mode[] = { |
f75c4950 | 85 | {160, 120, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE, |
c2446b3e JFM |
86 | .bytesperline = 160, |
87 | .sizeimage = 160 * 120 * 3 / 8 + 590, | |
88 | .colorspace = V4L2_COLORSPACE_JPEG, | |
89 | .priv = 2}, | |
f75c4950 | 90 | {320, 240, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE, |
c2446b3e JFM |
91 | .bytesperline = 320, |
92 | .sizeimage = 320 * 240 * 3 / 8 + 590, | |
93 | .colorspace = V4L2_COLORSPACE_JPEG, | |
94 | .priv = 1}, | |
f75c4950 | 95 | {640, 480, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE, |
c2446b3e JFM |
96 | .bytesperline = 640, |
97 | .sizeimage = 640 * 480 * 3 / 8 + 590, | |
98 | .colorspace = V4L2_COLORSPACE_JPEG, | |
99 | .priv = 0}, | |
6a7eba24 JFM |
100 | }; |
101 | ||
5a2e8d9f MN |
102 | #define LOAD_PAGE4 254 |
103 | #define END_OF_SEQUENCE 0 | |
104 | ||
271315a9 | 105 | static const __u8 init_7311[] = { |
42f85d0a | 106 | 0xff, 0x01, |
327c4abf HG |
107 | 0x78, 0x40, /* Bit_0=start stream, Bit_6=LED */ |
108 | 0x78, 0x40, /* Bit_0=start stream, Bit_6=LED */ | |
109 | 0x78, 0x44, /* Bit_0=start stream, Bit_6=LED */ | |
49b57dba JFM |
110 | 0xff, 0x04, |
111 | 0x27, 0x80, | |
112 | 0x28, 0xca, | |
113 | 0x29, 0x53, | |
114 | 0x2a, 0x0e, | |
115 | 0xff, 0x01, | |
116 | 0x3e, 0x20, | |
117 | }; | |
118 | ||
119 | static const __u8 start_7311[] = { | |
120 | /* index, len, [value]* */ | |
285a4f6c JFM |
121 | 0xff, 1, 0x01, /* page 1 */ |
122 | 0x02, 43, 0x48, 0x0a, 0x40, 0x08, 0x00, 0x00, 0x08, 0x00, | |
49b57dba JFM |
123 | 0x06, 0xff, 0x11, 0xff, 0x5a, 0x30, 0x90, 0x4c, |
124 | 0x00, 0x07, 0x00, 0x0a, 0x10, 0x00, 0xa0, 0x10, | |
125 | 0x02, 0x00, 0x00, 0x00, 0x00, 0x0b, 0x01, 0x00, | |
126 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
127 | 0x00, 0x00, 0x00, | |
285a4f6c | 128 | 0x3e, 42, 0x00, 0x00, 0x78, 0x52, 0x4a, 0x52, 0x78, 0x6e, |
49b57dba JFM |
129 | 0x48, 0x46, 0x48, 0x6e, 0x5f, 0x49, 0x42, 0x49, |
130 | 0x5f, 0x5f, 0x49, 0x42, 0x49, 0x5f, 0x6e, 0x48, | |
131 | 0x46, 0x48, 0x6e, 0x78, 0x52, 0x4a, 0x52, 0x78, | |
132 | 0x00, 0x00, 0x09, 0x1b, 0x34, 0x49, 0x5c, 0x9b, | |
133 | 0xd0, 0xff, | |
134 | 0x78, 6, 0x44, 0x00, 0xf2, 0x01, 0x01, 0x80, | |
135 | 0x7f, 18, 0x2a, 0x1c, 0x00, 0xc8, 0x02, 0x58, 0x03, 0x84, | |
136 | 0x12, 0x00, 0x1a, 0x04, 0x08, 0x0c, 0x10, 0x14, | |
137 | 0x18, 0x20, | |
138 | 0x96, 3, 0x01, 0x08, 0x04, | |
139 | 0xa0, 4, 0x44, 0x44, 0x44, 0x04, | |
140 | 0xf0, 13, 0x01, 0x00, 0x00, 0x00, 0x22, 0x00, 0x20, 0x00, | |
141 | 0x3f, 0x00, 0x0a, 0x01, 0x00, | |
285a4f6c | 142 | 0xff, 1, 0x04, /* page 4 */ |
5a2e8d9f | 143 | 0, LOAD_PAGE4, /* load the page 4 */ |
49b57dba | 144 | 0x11, 1, 0x01, |
5a2e8d9f | 145 | 0, END_OF_SEQUENCE /* end of sequence */ |
49b57dba JFM |
146 | }; |
147 | ||
1408b847 | 148 | #define SKIP 0xaa |
ff75e99c | 149 | /* page 4 - the value SKIP says skip the index - see reg_w_page() */ |
49b57dba | 150 | static const __u8 page4_7311[] = { |
ff75e99c MN |
151 | SKIP, SKIP, 0x04, 0x54, 0x07, 0x2b, 0x09, 0x0f, |
152 | 0x09, 0x00, SKIP, SKIP, 0x07, 0x00, 0x00, 0x62, | |
153 | 0x08, SKIP, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, | |
154 | 0x00, 0x00, 0x00, 0x03, 0xa0, 0x01, 0xf4, SKIP, | |
155 | SKIP, 0x00, 0x08, SKIP, 0x03, SKIP, 0x00, 0x68, | |
49b57dba JFM |
156 | 0xca, 0x10, 0x06, 0x78, 0x00, 0x00, 0x00, 0x00, |
157 | 0x23, 0x28, 0x04, 0x11, 0x00, 0x00 | |
158 | }; | |
159 | ||
14799f6c | 160 | static void reg_w_buf(struct gspca_dev *gspca_dev, |
49b57dba | 161 | __u8 index, |
0aeb5ec7 | 162 | const u8 *buffer, int len) |
6a7eba24 | 163 | { |
4f7309e2 MN |
164 | int ret; |
165 | ||
14799f6c JFM |
166 | if (gspca_dev->usb_err < 0) |
167 | return; | |
739570bb | 168 | memcpy(gspca_dev->usb_buf, buffer, len); |
4f7309e2 | 169 | ret = usb_control_msg(gspca_dev->dev, |
739570bb | 170 | usb_sndctrlpipe(gspca_dev->dev, 0), |
a1317135 | 171 | 0, /* request */ |
6a7eba24 | 172 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
bf7f0b98 | 173 | 0, /* value */ |
739570bb | 174 | index, gspca_dev->usb_buf, len, |
6a7eba24 | 175 | 500); |
14799f6c | 176 | if (ret < 0) { |
133a9fe9 JP |
177 | pr_err("reg_w_buf() failed index 0x%02x, error %d\n", |
178 | index, ret); | |
14799f6c JFM |
179 | gspca_dev->usb_err = ret; |
180 | } | |
6a7eba24 JFM |
181 | } |
182 | ||
6a7eba24 | 183 | |
14799f6c | 184 | static void reg_w(struct gspca_dev *gspca_dev, |
49b57dba | 185 | __u8 index, |
739570bb | 186 | __u8 value) |
6a7eba24 | 187 | { |
4f7309e2 MN |
188 | int ret; |
189 | ||
14799f6c JFM |
190 | if (gspca_dev->usb_err < 0) |
191 | return; | |
739570bb | 192 | gspca_dev->usb_buf[0] = value; |
4f7309e2 | 193 | ret = usb_control_msg(gspca_dev->dev, |
739570bb | 194 | usb_sndctrlpipe(gspca_dev->dev, 0), |
bf7f0b98 JFM |
195 | 0, /* request */ |
196 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
8a5b2e90 | 197 | 0, index, gspca_dev->usb_buf, 1, |
bf7f0b98 | 198 | 500); |
14799f6c | 199 | if (ret < 0) { |
133a9fe9 JP |
200 | pr_err("reg_w() failed index 0x%02x, value 0x%02x, error %d\n", |
201 | index, value, ret); | |
14799f6c JFM |
202 | gspca_dev->usb_err = ret; |
203 | } | |
6a7eba24 JFM |
204 | } |
205 | ||
14799f6c | 206 | static void reg_w_seq(struct gspca_dev *gspca_dev, |
49b57dba JFM |
207 | const __u8 *seq, int len) |
208 | { | |
209 | while (--len >= 0) { | |
14799f6c | 210 | reg_w(gspca_dev, seq[0], seq[1]); |
49b57dba JFM |
211 | seq += 2; |
212 | } | |
213 | } | |
214 | ||
215 | /* load the beginning of a page */ | |
14799f6c | 216 | static void reg_w_page(struct gspca_dev *gspca_dev, |
49b57dba JFM |
217 | const __u8 *page, int len) |
218 | { | |
219 | int index; | |
b1784b33 | 220 | int ret = 0; |
49b57dba | 221 | |
14799f6c JFM |
222 | if (gspca_dev->usb_err < 0) |
223 | return; | |
49b57dba | 224 | for (index = 0; index < len; index++) { |
ff75e99c | 225 | if (page[index] == SKIP) /* skip this index */ |
49b57dba JFM |
226 | continue; |
227 | gspca_dev->usb_buf[0] = page[index]; | |
4f7309e2 | 228 | ret = usb_control_msg(gspca_dev->dev, |
49b57dba JFM |
229 | usb_sndctrlpipe(gspca_dev->dev, 0), |
230 | 0, /* request */ | |
231 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
232 | 0, index, gspca_dev->usb_buf, 1, | |
233 | 500); | |
b1784b33 | 234 | if (ret < 0) { |
133a9fe9 JP |
235 | pr_err("reg_w_page() failed index 0x%02x, value 0x%02x, error %d\n", |
236 | index, page[index], ret); | |
14799f6c | 237 | gspca_dev->usb_err = ret; |
b1784b33 MN |
238 | break; |
239 | } | |
49b57dba JFM |
240 | } |
241 | } | |
242 | ||
243 | /* output a variable sequence */ | |
14799f6c | 244 | static void reg_w_var(struct gspca_dev *gspca_dev, |
1408b847 | 245 | const __u8 *seq, |
1408b847 | 246 | const __u8 *page4, unsigned int page4_len) |
49b57dba JFM |
247 | { |
248 | int index, len; | |
249 | ||
250 | for (;;) { | |
251 | index = *seq++; | |
252 | len = *seq++; | |
253 | switch (len) { | |
5a2e8d9f | 254 | case END_OF_SEQUENCE: |
14799f6c | 255 | return; |
5a2e8d9f | 256 | case LOAD_PAGE4: |
14799f6c | 257 | reg_w_page(gspca_dev, page4, page4_len); |
49b57dba | 258 | break; |
49b57dba | 259 | default: |
24067bb5 | 260 | if (len > USB_BUF_SZ) { |
c93396e1 | 261 | PERR("Incorrect variable sequence"); |
14799f6c | 262 | return; |
49b57dba JFM |
263 | } |
264 | while (len > 0) { | |
265 | if (len < 8) { | |
14799f6c | 266 | reg_w_buf(gspca_dev, |
b1784b33 | 267 | index, seq, len); |
49b57dba JFM |
268 | seq += len; |
269 | break; | |
270 | } | |
14799f6c | 271 | reg_w_buf(gspca_dev, index, seq, 8); |
49b57dba JFM |
272 | seq += 8; |
273 | index += 8; | |
274 | len -= 8; | |
275 | } | |
276 | } | |
277 | } | |
278 | /* not reached */ | |
279 | } | |
280 | ||
1408b847 | 281 | /* this function is called at probe time for pac7311 */ |
6a7eba24 JFM |
282 | static int sd_config(struct gspca_dev *gspca_dev, |
283 | const struct usb_device_id *id) | |
284 | { | |
a5340ce5 | 285 | struct cam *cam = &gspca_dev->cam; |
49b57dba | 286 | |
1408b847 MN |
287 | cam->cam_mode = vga_mode; |
288 | cam->nmodes = ARRAY_SIZE(vga_mode); | |
6a6c70b8 | 289 | cam->input_flags = V4L2_IN_ST_VFLIP; |
6a7eba24 | 290 | |
6a7eba24 JFM |
291 | return 0; |
292 | } | |
293 | ||
43f52bf2 | 294 | static void setcontrast(struct gspca_dev *gspca_dev, s32 val) |
6a7eba24 | 295 | { |
14799f6c | 296 | reg_w(gspca_dev, 0xff, 0x04); |
43f52bf2 | 297 | reg_w(gspca_dev, 0x10, val); |
6a7eba24 | 298 | /* load registers to sensor (Bit 0, auto clear) */ |
14799f6c | 299 | reg_w(gspca_dev, 0x11, 0x01); |
6a7eba24 JFM |
300 | } |
301 | ||
43f52bf2 | 302 | static void setgain(struct gspca_dev *gspca_dev, s32 val) |
6a7eba24 | 303 | { |
14799f6c JFM |
304 | reg_w(gspca_dev, 0xff, 0x04); /* page 4 */ |
305 | reg_w(gspca_dev, 0x0e, 0x00); | |
43f52bf2 | 306 | reg_w(gspca_dev, 0x0f, gspca_dev->gain->maximum - val + 1); |
6a7eba24 | 307 | |
6a7eba24 | 308 | /* load registers to sensor (Bit 0, auto clear) */ |
14799f6c | 309 | reg_w(gspca_dev, 0x11, 0x01); |
6a7eba24 JFM |
310 | } |
311 | ||
43f52bf2 | 312 | static void setexposure(struct gspca_dev *gspca_dev, s32 val) |
6a7eba24 | 313 | { |
14799f6c | 314 | reg_w(gspca_dev, 0xff, 0x04); /* page 4 */ |
43f52bf2 | 315 | reg_w(gspca_dev, 0x02, val); |
14799f6c | 316 | |
51ae23df HG |
317 | /* load registers to sensor (Bit 0, auto clear) */ |
318 | reg_w(gspca_dev, 0x11, 0x01); | |
319 | ||
4b8ceb6c HG |
320 | /* |
321 | * Page 1 register 8 must always be 0x08 except when not in | |
322 | * 640x480 mode and page 4 reg 2 <= 3 then it must be 9 | |
323 | */ | |
14799f6c | 324 | reg_w(gspca_dev, 0xff, 0x01); |
1966bc2a | 325 | if (gspca_dev->pixfmt.width != 640 && val <= 3) |
14799f6c | 326 | reg_w(gspca_dev, 0x08, 0x09); |
282ddfbc | 327 | else |
14799f6c | 328 | reg_w(gspca_dev, 0x08, 0x08); |
282ddfbc HG |
329 | |
330 | /* | |
331 | * Page1 register 80 sets the compression balance, normally we | |
332 | * want / use 0x1c, but for 640x480@30fps we must allow the | |
333 | * camera to use higher compression or we may run out of | |
334 | * bandwidth. | |
335 | */ | |
1966bc2a | 336 | if (gspca_dev->pixfmt.width == 640 && val == 2) |
282ddfbc HG |
337 | reg_w(gspca_dev, 0x80, 0x01); |
338 | else | |
339 | reg_w(gspca_dev, 0x80, 0x1c); | |
1408b847 | 340 | |
8a5b2e90 | 341 | /* load registers to sensor (Bit 0, auto clear) */ |
14799f6c | 342 | reg_w(gspca_dev, 0x11, 0x01); |
6a7eba24 JFM |
343 | } |
344 | ||
43f52bf2 | 345 | static void sethvflip(struct gspca_dev *gspca_dev, s32 hflip, s32 vflip) |
41b46974 | 346 | { |
41b46974 JFM |
347 | __u8 data; |
348 | ||
14799f6c | 349 | reg_w(gspca_dev, 0xff, 0x04); /* page 4 */ |
43f52bf2 HG |
350 | data = (hflip ? 0x04 : 0x00) | |
351 | (vflip ? 0x08 : 0x00); | |
14799f6c JFM |
352 | reg_w(gspca_dev, 0x21, data); |
353 | ||
8a5b2e90 | 354 | /* load registers to sensor (Bit 0, auto clear) */ |
14799f6c | 355 | reg_w(gspca_dev, 0x11, 0x01); |
41b46974 JFM |
356 | } |
357 | ||
1408b847 | 358 | /* this function is called at probe and resume time for pac7311 */ |
012d6b02 | 359 | static int sd_init(struct gspca_dev *gspca_dev) |
6a7eba24 | 360 | { |
14799f6c JFM |
361 | reg_w_seq(gspca_dev, init_7311, sizeof(init_7311)/2); |
362 | return gspca_dev->usb_err; | |
6a7eba24 JFM |
363 | } |
364 | ||
43f52bf2 HG |
365 | static int sd_s_ctrl(struct v4l2_ctrl *ctrl) |
366 | { | |
367 | struct gspca_dev *gspca_dev = | |
368 | container_of(ctrl->handler, struct gspca_dev, ctrl_handler); | |
369 | struct sd *sd = (struct sd *)gspca_dev; | |
370 | ||
371 | gspca_dev->usb_err = 0; | |
372 | ||
373 | if (ctrl->id == V4L2_CID_AUTOGAIN && ctrl->is_new && ctrl->val) { | |
374 | /* when switching to autogain set defaults to make sure | |
375 | we are on a valid point of the autogain gain / | |
376 | exposure knee graph, and give this change time to | |
377 | take effect before doing autogain. */ | |
378 | gspca_dev->exposure->val = PAC7311_EXPOSURE_DEFAULT; | |
379 | gspca_dev->gain->val = PAC7311_GAIN_DEFAULT; | |
380 | sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES; | |
381 | } | |
382 | ||
383 | if (!gspca_dev->streaming) | |
384 | return 0; | |
385 | ||
386 | switch (ctrl->id) { | |
387 | case V4L2_CID_CONTRAST: | |
388 | setcontrast(gspca_dev, ctrl->val); | |
389 | break; | |
390 | case V4L2_CID_AUTOGAIN: | |
391 | if (gspca_dev->exposure->is_new || (ctrl->is_new && ctrl->val)) | |
392 | setexposure(gspca_dev, gspca_dev->exposure->val); | |
393 | if (gspca_dev->gain->is_new || (ctrl->is_new && ctrl->val)) | |
394 | setgain(gspca_dev, gspca_dev->gain->val); | |
395 | break; | |
396 | case V4L2_CID_HFLIP: | |
6a6c70b8 | 397 | sethvflip(gspca_dev, sd->hflip->val, 1); |
43f52bf2 HG |
398 | break; |
399 | default: | |
400 | return -EINVAL; | |
401 | } | |
402 | return gspca_dev->usb_err; | |
403 | } | |
404 | ||
405 | static const struct v4l2_ctrl_ops sd_ctrl_ops = { | |
406 | .s_ctrl = sd_s_ctrl, | |
407 | }; | |
408 | ||
409 | /* this function is called at probe time */ | |
410 | static int sd_init_controls(struct gspca_dev *gspca_dev) | |
411 | { | |
412 | struct sd *sd = (struct sd *) gspca_dev; | |
413 | struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler; | |
414 | ||
415 | gspca_dev->vdev.ctrl_handler = hdl; | |
b6fc2eb9 | 416 | v4l2_ctrl_handler_init(hdl, 5); |
43f52bf2 HG |
417 | |
418 | sd->contrast = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, | |
419 | V4L2_CID_CONTRAST, 0, 15, 1, 7); | |
420 | gspca_dev->autogain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, | |
421 | V4L2_CID_AUTOGAIN, 0, 1, 1, 1); | |
422 | gspca_dev->exposure = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, | |
423 | V4L2_CID_EXPOSURE, 2, 63, 1, | |
424 | PAC7311_EXPOSURE_DEFAULT); | |
425 | gspca_dev->gain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, | |
426 | V4L2_CID_GAIN, 0, 244, 1, | |
427 | PAC7311_GAIN_DEFAULT); | |
428 | sd->hflip = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, | |
429 | V4L2_CID_HFLIP, 0, 1, 1, 0); | |
43f52bf2 HG |
430 | |
431 | if (hdl->error) { | |
432 | pr_err("Could not initialize controls\n"); | |
433 | return hdl->error; | |
434 | } | |
435 | ||
436 | v4l2_ctrl_auto_cluster(3, &gspca_dev->autogain, 0, false); | |
43f52bf2 HG |
437 | return 0; |
438 | } | |
439 | ||
440 | /* -- start the camera -- */ | |
72ab97ce | 441 | static int sd_start(struct gspca_dev *gspca_dev) |
6a7eba24 | 442 | { |
e52a5574 JFM |
443 | struct sd *sd = (struct sd *) gspca_dev; |
444 | ||
327c4abf | 445 | sd->sof_read = 0; |
739570bb | 446 | |
14799f6c | 447 | reg_w_var(gspca_dev, start_7311, |
1408b847 | 448 | page4_7311, sizeof(page4_7311)); |
43f52bf2 HG |
449 | setcontrast(gspca_dev, v4l2_ctrl_g_ctrl(sd->contrast)); |
450 | setgain(gspca_dev, v4l2_ctrl_g_ctrl(gspca_dev->gain)); | |
451 | setexposure(gspca_dev, v4l2_ctrl_g_ctrl(gspca_dev->exposure)); | |
6a6c70b8 | 452 | sethvflip(gspca_dev, v4l2_ctrl_g_ctrl(sd->hflip), 1); |
6a7eba24 JFM |
453 | |
454 | /* set correct resolution */ | |
c2446b3e | 455 | switch (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) { |
b053c1d0 | 456 | case 2: /* 160x120 */ |
14799f6c JFM |
457 | reg_w(gspca_dev, 0xff, 0x01); |
458 | reg_w(gspca_dev, 0x17, 0x20); | |
459 | reg_w(gspca_dev, 0x87, 0x10); | |
6a7eba24 | 460 | break; |
b053c1d0 | 461 | case 1: /* 320x240 */ |
14799f6c JFM |
462 | reg_w(gspca_dev, 0xff, 0x01); |
463 | reg_w(gspca_dev, 0x17, 0x30); | |
464 | reg_w(gspca_dev, 0x87, 0x11); | |
6a7eba24 JFM |
465 | break; |
466 | case 0: /* 640x480 */ | |
14799f6c JFM |
467 | reg_w(gspca_dev, 0xff, 0x01); |
468 | reg_w(gspca_dev, 0x17, 0x00); | |
469 | reg_w(gspca_dev, 0x87, 0x12); | |
6a7eba24 JFM |
470 | break; |
471 | } | |
472 | ||
327c4abf HG |
473 | sd->sof_read = 0; |
474 | sd->autogain_ignore_frames = 0; | |
475 | atomic_set(&sd->avg_lum, -1); | |
8a5b2e90 HG |
476 | |
477 | /* start stream */ | |
14799f6c JFM |
478 | reg_w(gspca_dev, 0xff, 0x01); |
479 | reg_w(gspca_dev, 0x78, 0x05); | |
1408b847 | 480 | |
14799f6c | 481 | return gspca_dev->usb_err; |
6a7eba24 JFM |
482 | } |
483 | ||
484 | static void sd_stopN(struct gspca_dev *gspca_dev) | |
485 | { | |
14799f6c JFM |
486 | reg_w(gspca_dev, 0xff, 0x04); |
487 | reg_w(gspca_dev, 0x27, 0x80); | |
488 | reg_w(gspca_dev, 0x28, 0xca); | |
489 | reg_w(gspca_dev, 0x29, 0x53); | |
490 | reg_w(gspca_dev, 0x2a, 0x0e); | |
491 | reg_w(gspca_dev, 0xff, 0x01); | |
492 | reg_w(gspca_dev, 0x3e, 0x20); | |
493 | reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */ | |
494 | reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */ | |
495 | reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */ | |
6a7eba24 JFM |
496 | } |
497 | ||
cebf3b67 | 498 | static void do_autogain(struct gspca_dev *gspca_dev) |
6a7eba24 | 499 | { |
8a5b2e90 HG |
500 | struct sd *sd = (struct sd *) gspca_dev; |
501 | int avg_lum = atomic_read(&sd->avg_lum); | |
038ec7c7 | 502 | int desired_lum, deadzone; |
8a5b2e90 | 503 | |
43f52bf2 | 504 | if (avg_lum == -1) |
8a5b2e90 HG |
505 | return; |
506 | ||
6a6c70b8 | 507 | desired_lum = 170; |
1408b847 | 508 | deadzone = 20; |
8a5b2e90 HG |
509 | |
510 | if (sd->autogain_ignore_frames > 0) | |
511 | sd->autogain_ignore_frames--; | |
43f52bf2 HG |
512 | else if (gspca_coarse_grained_expo_autogain(gspca_dev, avg_lum, |
513 | desired_lum, deadzone)) | |
8a5b2e90 | 514 | sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES; |
6a7eba24 JFM |
515 | } |
516 | ||
56f6f558 | 517 | /* JPEG header, part 1 */ |
cc409c0e | 518 | static const unsigned char pac_jpeg_header1[] = { |
56f6f558 MN |
519 | 0xff, 0xd8, /* SOI: Start of Image */ |
520 | ||
521 | 0xff, 0xc0, /* SOF0: Start of Frame (Baseline DCT) */ | |
522 | 0x00, 0x11, /* length = 17 bytes (including this length field) */ | |
523 | 0x08 /* Precision: 8 */ | |
524 | /* 2 bytes is placed here: number of image lines */ | |
525 | /* 2 bytes is placed here: samples per line */ | |
327c4abf HG |
526 | }; |
527 | ||
56f6f558 | 528 | /* JPEG header, continued */ |
cc409c0e | 529 | static const unsigned char pac_jpeg_header2[] = { |
56f6f558 MN |
530 | 0x03, /* Number of image components: 3 */ |
531 | 0x01, 0x21, 0x00, /* ID=1, Subsampling 1x1, Quantization table: 0 */ | |
532 | 0x02, 0x11, 0x01, /* ID=2, Subsampling 2x1, Quantization table: 1 */ | |
533 | 0x03, 0x11, 0x01, /* ID=3, Subsampling 2x1, Quantization table: 1 */ | |
534 | ||
535 | 0xff, 0xda, /* SOS: Start Of Scan */ | |
536 | 0x00, 0x0c, /* length = 12 bytes (including this length field) */ | |
537 | 0x03, /* number of components: 3 */ | |
538 | 0x01, 0x00, /* selector 1, table 0x00 */ | |
539 | 0x02, 0x11, /* selector 2, table 0x11 */ | |
540 | 0x03, 0x11, /* selector 3, table 0x11 */ | |
541 | 0x00, 0x3f, /* Spectral selection: 0 .. 63 */ | |
542 | 0x00 /* Successive approximation: 0 */ | |
327c4abf HG |
543 | }; |
544 | ||
cc409c0e | 545 | static void pac_start_frame(struct gspca_dev *gspca_dev, |
cc409c0e MN |
546 | __u16 lines, __u16 samples_per_line) |
547 | { | |
548 | unsigned char tmpbuf[4]; | |
549 | ||
76dd272b | 550 | gspca_frame_add(gspca_dev, FIRST_PACKET, |
cc409c0e MN |
551 | pac_jpeg_header1, sizeof(pac_jpeg_header1)); |
552 | ||
553 | tmpbuf[0] = lines >> 8; | |
554 | tmpbuf[1] = lines & 0xff; | |
555 | tmpbuf[2] = samples_per_line >> 8; | |
556 | tmpbuf[3] = samples_per_line & 0xff; | |
557 | ||
76dd272b | 558 | gspca_frame_add(gspca_dev, INTER_PACKET, |
cc409c0e | 559 | tmpbuf, sizeof(tmpbuf)); |
76dd272b | 560 | gspca_frame_add(gspca_dev, INTER_PACKET, |
cc409c0e MN |
561 | pac_jpeg_header2, sizeof(pac_jpeg_header2)); |
562 | } | |
563 | ||
e52a5574 | 564 | /* this function is run at interrupt level */ |
6a7eba24 | 565 | static void sd_pkt_scan(struct gspca_dev *gspca_dev, |
76dd272b | 566 | u8 *data, /* isoc packet */ |
6a7eba24 JFM |
567 | int len) /* iso packet length */ |
568 | { | |
569 | struct sd *sd = (struct sd *) gspca_dev; | |
b192ca98 | 570 | u8 *image; |
327c4abf HG |
571 | unsigned char *sof; |
572 | ||
c93396e1 | 573 | sof = pac_find_sof(gspca_dev, &sd->sof_read, data, len); |
327c4abf | 574 | if (sof) { |
327c4abf HG |
575 | int n, lum_offset, footer_length; |
576 | ||
4b8ceb6c HG |
577 | /* |
578 | * 6 bytes after the FF D9 EOF marker a number of lumination | |
579 | * bytes are send corresponding to different parts of the | |
580 | * image, the 14th and 15th byte after the EOF seem to | |
581 | * correspond to the center of the image. | |
582 | */ | |
1408b847 MN |
583 | lum_offset = 24 + sizeof pac_sof_marker; |
584 | footer_length = 26; | |
327c4abf HG |
585 | |
586 | /* Finish decoding current frame */ | |
587 | n = (sof - data) - (footer_length + sizeof pac_sof_marker); | |
588 | if (n < 0) { | |
b192ca98 | 589 | gspca_dev->image_len += n; |
327c4abf | 590 | n = 0; |
b192ca98 JFM |
591 | } else { |
592 | gspca_frame_add(gspca_dev, INTER_PACKET, data, n); | |
327c4abf | 593 | } |
f7059eaa JFM |
594 | image = gspca_dev->image; |
595 | if (image != NULL | |
b192ca98 JFM |
596 | && image[gspca_dev->image_len - 2] == 0xff |
597 | && image[gspca_dev->image_len - 1] == 0xd9) | |
598 | gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0); | |
327c4abf HG |
599 | |
600 | n = sof - data; | |
601 | len -= n; | |
602 | data = sof; | |
603 | ||
604 | /* Get average lumination */ | |
605 | if (gspca_dev->last_packet_type == LAST_PACKET && | |
038ec7c7 HG |
606 | n >= lum_offset) |
607 | atomic_set(&sd->avg_lum, data[-lum_offset] + | |
327c4abf | 608 | data[-lum_offset + 1]); |
038ec7c7 | 609 | else |
327c4abf | 610 | atomic_set(&sd->avg_lum, -1); |
327c4abf HG |
611 | |
612 | /* Start the new frame with the jpeg header */ | |
b192ca98 | 613 | pac_start_frame(gspca_dev, |
1966bc2a | 614 | gspca_dev->pixfmt.height, gspca_dev->pixfmt.width); |
6a7eba24 | 615 | } |
76dd272b | 616 | gspca_frame_add(gspca_dev, INTER_PACKET, data, len); |
6a7eba24 JFM |
617 | } |
618 | ||
2d622e91 | 619 | #if IS_ENABLED(CONFIG_INPUT) |
32ea3e44 HG |
620 | static int sd_int_pkt_scan(struct gspca_dev *gspca_dev, |
621 | u8 *data, /* interrupt packet data */ | |
622 | int len) /* interrupt packet length */ | |
623 | { | |
624 | int ret = -EINVAL; | |
625 | u8 data0, data1; | |
626 | ||
627 | if (len == 2) { | |
628 | data0 = data[0]; | |
629 | data1 = data[1]; | |
630 | if ((data0 == 0x00 && data1 == 0x11) || | |
631 | (data0 == 0x22 && data1 == 0x33) || | |
632 | (data0 == 0x44 && data1 == 0x55) || | |
633 | (data0 == 0x66 && data1 == 0x77) || | |
634 | (data0 == 0x88 && data1 == 0x99) || | |
635 | (data0 == 0xaa && data1 == 0xbb) || | |
636 | (data0 == 0xcc && data1 == 0xdd) || | |
637 | (data0 == 0xee && data1 == 0xff)) { | |
638 | input_report_key(gspca_dev->input_dev, KEY_CAMERA, 1); | |
639 | input_sync(gspca_dev->input_dev); | |
640 | input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0); | |
641 | input_sync(gspca_dev->input_dev); | |
642 | ret = 0; | |
643 | } | |
644 | } | |
645 | ||
646 | return ret; | |
647 | } | |
648 | #endif | |
649 | ||
aabcdfb6 | 650 | static const struct sd_desc sd_desc = { |
6a7eba24 | 651 | .name = MODULE_NAME, |
6a7eba24 | 652 | .config = sd_config, |
012d6b02 | 653 | .init = sd_init, |
43f52bf2 | 654 | .init_controls = sd_init_controls, |
6a7eba24 JFM |
655 | .start = sd_start, |
656 | .stopN = sd_stopN, | |
6a7eba24 | 657 | .pkt_scan = sd_pkt_scan, |
cebf3b67 | 658 | .dq_callback = do_autogain, |
2d622e91 | 659 | #if IS_ENABLED(CONFIG_INPUT) |
32ea3e44 HG |
660 | .int_pkt_scan = sd_int_pkt_scan, |
661 | #endif | |
6a7eba24 JFM |
662 | }; |
663 | ||
664 | /* -- module initialisation -- */ | |
95c967c1 | 665 | static const struct usb_device_id device_table[] = { |
1408b847 MN |
666 | {USB_DEVICE(0x093a, 0x2600)}, |
667 | {USB_DEVICE(0x093a, 0x2601)}, | |
668 | {USB_DEVICE(0x093a, 0x2603)}, | |
669 | {USB_DEVICE(0x093a, 0x2608)}, | |
670 | {USB_DEVICE(0x093a, 0x260e)}, | |
671 | {USB_DEVICE(0x093a, 0x260f)}, | |
6a7eba24 JFM |
672 | {} |
673 | }; | |
674 | MODULE_DEVICE_TABLE(usb, device_table); | |
675 | ||
676 | /* -- device connect -- */ | |
95c967c1 | 677 | static int sd_probe(struct usb_interface *intf, |
6a7eba24 JFM |
678 | const struct usb_device_id *id) |
679 | { | |
680 | return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd), | |
681 | THIS_MODULE); | |
682 | } | |
683 | ||
684 | static struct usb_driver sd_driver = { | |
685 | .name = MODULE_NAME, | |
686 | .id_table = device_table, | |
687 | .probe = sd_probe, | |
688 | .disconnect = gspca_disconnect, | |
6a709749 JFM |
689 | #ifdef CONFIG_PM |
690 | .suspend = gspca_suspend, | |
691 | .resume = gspca_resume, | |
8bb58964 | 692 | .reset_resume = gspca_resume, |
6a709749 | 693 | #endif |
6a7eba24 JFM |
694 | }; |
695 | ||
ecb3b2b3 | 696 | module_usb_driver(sd_driver); |