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. | |
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 | 22 | /* Some documentation about various registers as determined by trial and error. |
4b8ceb6c HG |
23 | * |
24 | * Register page 1: | |
25 | * | |
26 | * Address Description | |
27 | * 0x08 Unknown compressor related, must always be 8 except when not | |
28 | * in 640x480 resolution and page 4 reg 2 <= 3 then set it to 9 ! | |
29 | * 0x1b Auto white balance related, bit 0 is AWB enable (inverted) | |
30 | * bits 345 seem to toggle per color gains on/off (inverted) | |
31 | * 0x78 Global control, bit 6 controls the LED (inverted) | |
282ddfbc HG |
32 | * 0x80 Compression balance, interesting settings: |
33 | * 0x01 Use this to allow the camera to switch to higher compr. | |
34 | * on the fly. Needed to stay within bandwidth @ 640x480@30 | |
35 | * 0x1c From usb captures under Windows for 640x480 | |
36 | * 0x2a Values >= this switch the camera to a lower compression, | |
37 | * using the same table for both luminance and chrominance. | |
38 | * This gives a sharper picture. Usable only at 640x480@ < | |
39 | * 15 fps or 320x240 / 160x120. Note currently the driver | |
40 | * does not use this as the quality gain is small and the | |
41 | * generated JPG-s are only understood by v4l-utils >= 0.8.9 | |
42 | * 0x3f From usb captures under Windows for 320x240 | |
43 | * 0x69 From usb captures under Windows for 160x120 | |
4b8ceb6c HG |
44 | * |
45 | * Register page 4: | |
46 | * | |
47 | * Address Description | |
48 | * 0x02 Clock divider 2-63, fps =~ 60 / val. Must be a multiple of 3 on | |
49 | * the 7302, so one of 3, 6, 9, ..., except when between 6 and 12? | |
50 | * 0x0f Master gain 1-245, low value = high gain | |
51 | * 0x10 Another gain 0-15, limited influence (1-2x gain I guess) | |
52 | * 0x21 Bitfield: 0-1 unused, 2-3 vflip/hflip, 4-5 unknown, 6-7 unused | |
6a6c70b8 HG |
53 | * Note setting vflip disabled leads to a much lower image quality, |
54 | * so we always vflip, and tell userspace to flip it back | |
4b8ceb6c HG |
55 | * 0x27 Seems to toggle various gains on / off, Setting bit 7 seems to |
56 | * completely disable the analog amplification block. Set to 0x68 | |
57 | * for max gain, 0x14 for minimal gain. | |
58 | */ | |
327c4abf | 59 | |
133a9fe9 JP |
60 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
61 | ||
6a7eba24 JFM |
62 | #define MODULE_NAME "pac7311" |
63 | ||
32ea3e44 | 64 | #include <linux/input.h> |
6a7eba24 | 65 | #include "gspca.h" |
a5340ce5 HG |
66 | /* Include pac common sof detection functions */ |
67 | #include "pac_common.h" | |
6a7eba24 | 68 | |
43f52bf2 HG |
69 | #define PAC7311_GAIN_DEFAULT 122 |
70 | #define PAC7311_EXPOSURE_DEFAULT 3 /* 20 fps, avoid using high compr. */ | |
71 | ||
6a7eba24 JFM |
72 | MODULE_AUTHOR("Thomas Kaiser thomas@kaiser-linux.li"); |
73 | MODULE_DESCRIPTION("Pixart PAC7311"); | |
74 | MODULE_LICENSE("GPL"); | |
75 | ||
6a7eba24 JFM |
76 | struct sd { |
77 | struct gspca_dev gspca_dev; /* !! must be the first item */ | |
43f52bf2 HG |
78 | |
79 | struct v4l2_ctrl *contrast; | |
6a6c70b8 | 80 | struct v4l2_ctrl *hflip; |
49b57dba | 81 | |
327c4abf | 82 | u8 sof_read; |
327c4abf HG |
83 | u8 autogain_ignore_frames; |
84 | ||
85 | atomic_t avg_lum; | |
6a7eba24 JFM |
86 | }; |
87 | ||
cc611b8a | 88 | static const struct v4l2_pix_format vga_mode[] = { |
f75c4950 | 89 | {160, 120, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE, |
c2446b3e JFM |
90 | .bytesperline = 160, |
91 | .sizeimage = 160 * 120 * 3 / 8 + 590, | |
92 | .colorspace = V4L2_COLORSPACE_JPEG, | |
93 | .priv = 2}, | |
f75c4950 | 94 | {320, 240, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE, |
c2446b3e JFM |
95 | .bytesperline = 320, |
96 | .sizeimage = 320 * 240 * 3 / 8 + 590, | |
97 | .colorspace = V4L2_COLORSPACE_JPEG, | |
98 | .priv = 1}, | |
f75c4950 | 99 | {640, 480, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE, |
c2446b3e JFM |
100 | .bytesperline = 640, |
101 | .sizeimage = 640 * 480 * 3 / 8 + 590, | |
102 | .colorspace = V4L2_COLORSPACE_JPEG, | |
103 | .priv = 0}, | |
6a7eba24 JFM |
104 | }; |
105 | ||
5a2e8d9f MN |
106 | #define LOAD_PAGE4 254 |
107 | #define END_OF_SEQUENCE 0 | |
108 | ||
271315a9 | 109 | static const __u8 init_7311[] = { |
42f85d0a | 110 | 0xff, 0x01, |
327c4abf HG |
111 | 0x78, 0x40, /* Bit_0=start stream, Bit_6=LED */ |
112 | 0x78, 0x40, /* Bit_0=start stream, Bit_6=LED */ | |
113 | 0x78, 0x44, /* Bit_0=start stream, Bit_6=LED */ | |
49b57dba JFM |
114 | 0xff, 0x04, |
115 | 0x27, 0x80, | |
116 | 0x28, 0xca, | |
117 | 0x29, 0x53, | |
118 | 0x2a, 0x0e, | |
119 | 0xff, 0x01, | |
120 | 0x3e, 0x20, | |
121 | }; | |
122 | ||
123 | static const __u8 start_7311[] = { | |
124 | /* index, len, [value]* */ | |
285a4f6c JFM |
125 | 0xff, 1, 0x01, /* page 1 */ |
126 | 0x02, 43, 0x48, 0x0a, 0x40, 0x08, 0x00, 0x00, 0x08, 0x00, | |
49b57dba JFM |
127 | 0x06, 0xff, 0x11, 0xff, 0x5a, 0x30, 0x90, 0x4c, |
128 | 0x00, 0x07, 0x00, 0x0a, 0x10, 0x00, 0xa0, 0x10, | |
129 | 0x02, 0x00, 0x00, 0x00, 0x00, 0x0b, 0x01, 0x00, | |
130 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
131 | 0x00, 0x00, 0x00, | |
285a4f6c | 132 | 0x3e, 42, 0x00, 0x00, 0x78, 0x52, 0x4a, 0x52, 0x78, 0x6e, |
49b57dba JFM |
133 | 0x48, 0x46, 0x48, 0x6e, 0x5f, 0x49, 0x42, 0x49, |
134 | 0x5f, 0x5f, 0x49, 0x42, 0x49, 0x5f, 0x6e, 0x48, | |
135 | 0x46, 0x48, 0x6e, 0x78, 0x52, 0x4a, 0x52, 0x78, | |
136 | 0x00, 0x00, 0x09, 0x1b, 0x34, 0x49, 0x5c, 0x9b, | |
137 | 0xd0, 0xff, | |
138 | 0x78, 6, 0x44, 0x00, 0xf2, 0x01, 0x01, 0x80, | |
139 | 0x7f, 18, 0x2a, 0x1c, 0x00, 0xc8, 0x02, 0x58, 0x03, 0x84, | |
140 | 0x12, 0x00, 0x1a, 0x04, 0x08, 0x0c, 0x10, 0x14, | |
141 | 0x18, 0x20, | |
142 | 0x96, 3, 0x01, 0x08, 0x04, | |
143 | 0xa0, 4, 0x44, 0x44, 0x44, 0x04, | |
144 | 0xf0, 13, 0x01, 0x00, 0x00, 0x00, 0x22, 0x00, 0x20, 0x00, | |
145 | 0x3f, 0x00, 0x0a, 0x01, 0x00, | |
285a4f6c | 146 | 0xff, 1, 0x04, /* page 4 */ |
5a2e8d9f | 147 | 0, LOAD_PAGE4, /* load the page 4 */ |
49b57dba | 148 | 0x11, 1, 0x01, |
5a2e8d9f | 149 | 0, END_OF_SEQUENCE /* end of sequence */ |
49b57dba JFM |
150 | }; |
151 | ||
1408b847 | 152 | #define SKIP 0xaa |
ff75e99c | 153 | /* page 4 - the value SKIP says skip the index - see reg_w_page() */ |
49b57dba | 154 | static const __u8 page4_7311[] = { |
ff75e99c MN |
155 | SKIP, SKIP, 0x04, 0x54, 0x07, 0x2b, 0x09, 0x0f, |
156 | 0x09, 0x00, SKIP, SKIP, 0x07, 0x00, 0x00, 0x62, | |
157 | 0x08, SKIP, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, | |
158 | 0x00, 0x00, 0x00, 0x03, 0xa0, 0x01, 0xf4, SKIP, | |
159 | SKIP, 0x00, 0x08, SKIP, 0x03, SKIP, 0x00, 0x68, | |
49b57dba JFM |
160 | 0xca, 0x10, 0x06, 0x78, 0x00, 0x00, 0x00, 0x00, |
161 | 0x23, 0x28, 0x04, 0x11, 0x00, 0x00 | |
162 | }; | |
163 | ||
14799f6c | 164 | static void reg_w_buf(struct gspca_dev *gspca_dev, |
49b57dba | 165 | __u8 index, |
0aeb5ec7 | 166 | const u8 *buffer, int len) |
6a7eba24 | 167 | { |
4f7309e2 MN |
168 | int ret; |
169 | ||
14799f6c JFM |
170 | if (gspca_dev->usb_err < 0) |
171 | return; | |
739570bb | 172 | memcpy(gspca_dev->usb_buf, buffer, len); |
4f7309e2 | 173 | ret = usb_control_msg(gspca_dev->dev, |
739570bb | 174 | usb_sndctrlpipe(gspca_dev->dev, 0), |
a1317135 | 175 | 0, /* request */ |
6a7eba24 | 176 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
bf7f0b98 | 177 | 0, /* value */ |
739570bb | 178 | index, gspca_dev->usb_buf, len, |
6a7eba24 | 179 | 500); |
14799f6c | 180 | if (ret < 0) { |
133a9fe9 JP |
181 | pr_err("reg_w_buf() failed index 0x%02x, error %d\n", |
182 | index, ret); | |
14799f6c JFM |
183 | gspca_dev->usb_err = ret; |
184 | } | |
6a7eba24 JFM |
185 | } |
186 | ||
6a7eba24 | 187 | |
14799f6c | 188 | static void reg_w(struct gspca_dev *gspca_dev, |
49b57dba | 189 | __u8 index, |
739570bb | 190 | __u8 value) |
6a7eba24 | 191 | { |
4f7309e2 MN |
192 | int ret; |
193 | ||
14799f6c JFM |
194 | if (gspca_dev->usb_err < 0) |
195 | return; | |
739570bb | 196 | gspca_dev->usb_buf[0] = value; |
4f7309e2 | 197 | ret = usb_control_msg(gspca_dev->dev, |
739570bb | 198 | usb_sndctrlpipe(gspca_dev->dev, 0), |
bf7f0b98 JFM |
199 | 0, /* request */ |
200 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
8a5b2e90 | 201 | 0, index, gspca_dev->usb_buf, 1, |
bf7f0b98 | 202 | 500); |
14799f6c | 203 | if (ret < 0) { |
133a9fe9 JP |
204 | pr_err("reg_w() failed index 0x%02x, value 0x%02x, error %d\n", |
205 | index, value, ret); | |
14799f6c JFM |
206 | gspca_dev->usb_err = ret; |
207 | } | |
6a7eba24 JFM |
208 | } |
209 | ||
14799f6c | 210 | static void reg_w_seq(struct gspca_dev *gspca_dev, |
49b57dba JFM |
211 | const __u8 *seq, int len) |
212 | { | |
213 | while (--len >= 0) { | |
14799f6c | 214 | reg_w(gspca_dev, seq[0], seq[1]); |
49b57dba JFM |
215 | seq += 2; |
216 | } | |
217 | } | |
218 | ||
219 | /* load the beginning of a page */ | |
14799f6c | 220 | static void reg_w_page(struct gspca_dev *gspca_dev, |
49b57dba JFM |
221 | const __u8 *page, int len) |
222 | { | |
223 | int index; | |
b1784b33 | 224 | int ret = 0; |
49b57dba | 225 | |
14799f6c JFM |
226 | if (gspca_dev->usb_err < 0) |
227 | return; | |
49b57dba | 228 | for (index = 0; index < len; index++) { |
ff75e99c | 229 | if (page[index] == SKIP) /* skip this index */ |
49b57dba JFM |
230 | continue; |
231 | gspca_dev->usb_buf[0] = page[index]; | |
4f7309e2 | 232 | ret = usb_control_msg(gspca_dev->dev, |
49b57dba JFM |
233 | usb_sndctrlpipe(gspca_dev->dev, 0), |
234 | 0, /* request */ | |
235 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
236 | 0, index, gspca_dev->usb_buf, 1, | |
237 | 500); | |
b1784b33 | 238 | if (ret < 0) { |
133a9fe9 JP |
239 | pr_err("reg_w_page() failed index 0x%02x, value 0x%02x, error %d\n", |
240 | index, page[index], ret); | |
14799f6c | 241 | gspca_dev->usb_err = ret; |
b1784b33 MN |
242 | break; |
243 | } | |
49b57dba JFM |
244 | } |
245 | } | |
246 | ||
247 | /* output a variable sequence */ | |
14799f6c | 248 | static void reg_w_var(struct gspca_dev *gspca_dev, |
1408b847 | 249 | const __u8 *seq, |
1408b847 | 250 | const __u8 *page4, unsigned int page4_len) |
49b57dba JFM |
251 | { |
252 | int index, len; | |
253 | ||
254 | for (;;) { | |
255 | index = *seq++; | |
256 | len = *seq++; | |
257 | switch (len) { | |
5a2e8d9f | 258 | case END_OF_SEQUENCE: |
14799f6c | 259 | return; |
5a2e8d9f | 260 | case LOAD_PAGE4: |
14799f6c | 261 | reg_w_page(gspca_dev, page4, page4_len); |
49b57dba | 262 | break; |
49b57dba | 263 | default: |
24067bb5 | 264 | if (len > USB_BUF_SZ) { |
49b57dba JFM |
265 | PDEBUG(D_ERR|D_STREAM, |
266 | "Incorrect variable sequence"); | |
14799f6c | 267 | return; |
49b57dba JFM |
268 | } |
269 | while (len > 0) { | |
270 | if (len < 8) { | |
14799f6c | 271 | reg_w_buf(gspca_dev, |
b1784b33 | 272 | index, seq, len); |
49b57dba JFM |
273 | seq += len; |
274 | break; | |
275 | } | |
14799f6c | 276 | reg_w_buf(gspca_dev, index, seq, 8); |
49b57dba JFM |
277 | seq += 8; |
278 | index += 8; | |
279 | len -= 8; | |
280 | } | |
281 | } | |
282 | } | |
283 | /* not reached */ | |
284 | } | |
285 | ||
1408b847 | 286 | /* this function is called at probe time for pac7311 */ |
6a7eba24 JFM |
287 | static int sd_config(struct gspca_dev *gspca_dev, |
288 | const struct usb_device_id *id) | |
289 | { | |
a5340ce5 | 290 | struct cam *cam = &gspca_dev->cam; |
49b57dba | 291 | |
1408b847 MN |
292 | cam->cam_mode = vga_mode; |
293 | cam->nmodes = ARRAY_SIZE(vga_mode); | |
6a6c70b8 | 294 | cam->input_flags = V4L2_IN_ST_VFLIP; |
6a7eba24 | 295 | |
6a7eba24 JFM |
296 | return 0; |
297 | } | |
298 | ||
43f52bf2 | 299 | static void setcontrast(struct gspca_dev *gspca_dev, s32 val) |
6a7eba24 | 300 | { |
14799f6c | 301 | reg_w(gspca_dev, 0xff, 0x04); |
43f52bf2 | 302 | reg_w(gspca_dev, 0x10, val); |
6a7eba24 | 303 | /* load registers to sensor (Bit 0, auto clear) */ |
14799f6c | 304 | reg_w(gspca_dev, 0x11, 0x01); |
6a7eba24 JFM |
305 | } |
306 | ||
43f52bf2 | 307 | static void setgain(struct gspca_dev *gspca_dev, s32 val) |
6a7eba24 | 308 | { |
14799f6c JFM |
309 | reg_w(gspca_dev, 0xff, 0x04); /* page 4 */ |
310 | reg_w(gspca_dev, 0x0e, 0x00); | |
43f52bf2 | 311 | reg_w(gspca_dev, 0x0f, gspca_dev->gain->maximum - val + 1); |
6a7eba24 | 312 | |
6a7eba24 | 313 | /* load registers to sensor (Bit 0, auto clear) */ |
14799f6c | 314 | reg_w(gspca_dev, 0x11, 0x01); |
6a7eba24 JFM |
315 | } |
316 | ||
43f52bf2 | 317 | static void setexposure(struct gspca_dev *gspca_dev, s32 val) |
6a7eba24 | 318 | { |
14799f6c | 319 | reg_w(gspca_dev, 0xff, 0x04); /* page 4 */ |
43f52bf2 | 320 | reg_w(gspca_dev, 0x02, val); |
14799f6c | 321 | |
51ae23df HG |
322 | /* load registers to sensor (Bit 0, auto clear) */ |
323 | reg_w(gspca_dev, 0x11, 0x01); | |
324 | ||
4b8ceb6c HG |
325 | /* |
326 | * Page 1 register 8 must always be 0x08 except when not in | |
327 | * 640x480 mode and page 4 reg 2 <= 3 then it must be 9 | |
328 | */ | |
14799f6c | 329 | reg_w(gspca_dev, 0xff, 0x01); |
43f52bf2 | 330 | if (gspca_dev->width != 640 && val <= 3) |
14799f6c | 331 | reg_w(gspca_dev, 0x08, 0x09); |
282ddfbc | 332 | else |
14799f6c | 333 | reg_w(gspca_dev, 0x08, 0x08); |
282ddfbc HG |
334 | |
335 | /* | |
336 | * Page1 register 80 sets the compression balance, normally we | |
337 | * want / use 0x1c, but for 640x480@30fps we must allow the | |
338 | * camera to use higher compression or we may run out of | |
339 | * bandwidth. | |
340 | */ | |
43f52bf2 | 341 | if (gspca_dev->width == 640 && val == 2) |
282ddfbc HG |
342 | reg_w(gspca_dev, 0x80, 0x01); |
343 | else | |
344 | reg_w(gspca_dev, 0x80, 0x1c); | |
1408b847 | 345 | |
8a5b2e90 | 346 | /* load registers to sensor (Bit 0, auto clear) */ |
14799f6c | 347 | reg_w(gspca_dev, 0x11, 0x01); |
6a7eba24 JFM |
348 | } |
349 | ||
43f52bf2 | 350 | static void sethvflip(struct gspca_dev *gspca_dev, s32 hflip, s32 vflip) |
41b46974 | 351 | { |
41b46974 JFM |
352 | __u8 data; |
353 | ||
14799f6c | 354 | reg_w(gspca_dev, 0xff, 0x04); /* page 4 */ |
43f52bf2 HG |
355 | data = (hflip ? 0x04 : 0x00) | |
356 | (vflip ? 0x08 : 0x00); | |
14799f6c JFM |
357 | reg_w(gspca_dev, 0x21, data); |
358 | ||
8a5b2e90 | 359 | /* load registers to sensor (Bit 0, auto clear) */ |
14799f6c | 360 | reg_w(gspca_dev, 0x11, 0x01); |
41b46974 JFM |
361 | } |
362 | ||
1408b847 | 363 | /* this function is called at probe and resume time for pac7311 */ |
012d6b02 | 364 | static int sd_init(struct gspca_dev *gspca_dev) |
6a7eba24 | 365 | { |
14799f6c JFM |
366 | reg_w_seq(gspca_dev, init_7311, sizeof(init_7311)/2); |
367 | return gspca_dev->usb_err; | |
6a7eba24 JFM |
368 | } |
369 | ||
43f52bf2 HG |
370 | static int sd_s_ctrl(struct v4l2_ctrl *ctrl) |
371 | { | |
372 | struct gspca_dev *gspca_dev = | |
373 | container_of(ctrl->handler, struct gspca_dev, ctrl_handler); | |
374 | struct sd *sd = (struct sd *)gspca_dev; | |
375 | ||
376 | gspca_dev->usb_err = 0; | |
377 | ||
378 | if (ctrl->id == V4L2_CID_AUTOGAIN && ctrl->is_new && ctrl->val) { | |
379 | /* when switching to autogain set defaults to make sure | |
380 | we are on a valid point of the autogain gain / | |
381 | exposure knee graph, and give this change time to | |
382 | take effect before doing autogain. */ | |
383 | gspca_dev->exposure->val = PAC7311_EXPOSURE_DEFAULT; | |
384 | gspca_dev->gain->val = PAC7311_GAIN_DEFAULT; | |
385 | sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES; | |
386 | } | |
387 | ||
388 | if (!gspca_dev->streaming) | |
389 | return 0; | |
390 | ||
391 | switch (ctrl->id) { | |
392 | case V4L2_CID_CONTRAST: | |
393 | setcontrast(gspca_dev, ctrl->val); | |
394 | break; | |
395 | case V4L2_CID_AUTOGAIN: | |
396 | if (gspca_dev->exposure->is_new || (ctrl->is_new && ctrl->val)) | |
397 | setexposure(gspca_dev, gspca_dev->exposure->val); | |
398 | if (gspca_dev->gain->is_new || (ctrl->is_new && ctrl->val)) | |
399 | setgain(gspca_dev, gspca_dev->gain->val); | |
400 | break; | |
401 | case V4L2_CID_HFLIP: | |
6a6c70b8 | 402 | sethvflip(gspca_dev, sd->hflip->val, 1); |
43f52bf2 HG |
403 | break; |
404 | default: | |
405 | return -EINVAL; | |
406 | } | |
407 | return gspca_dev->usb_err; | |
408 | } | |
409 | ||
410 | static const struct v4l2_ctrl_ops sd_ctrl_ops = { | |
411 | .s_ctrl = sd_s_ctrl, | |
412 | }; | |
413 | ||
414 | /* this function is called at probe time */ | |
415 | static int sd_init_controls(struct gspca_dev *gspca_dev) | |
416 | { | |
417 | struct sd *sd = (struct sd *) gspca_dev; | |
418 | struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler; | |
419 | ||
420 | gspca_dev->vdev.ctrl_handler = hdl; | |
b6fc2eb9 | 421 | v4l2_ctrl_handler_init(hdl, 5); |
43f52bf2 HG |
422 | |
423 | sd->contrast = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, | |
424 | V4L2_CID_CONTRAST, 0, 15, 1, 7); | |
425 | gspca_dev->autogain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, | |
426 | V4L2_CID_AUTOGAIN, 0, 1, 1, 1); | |
427 | gspca_dev->exposure = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, | |
428 | V4L2_CID_EXPOSURE, 2, 63, 1, | |
429 | PAC7311_EXPOSURE_DEFAULT); | |
430 | gspca_dev->gain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, | |
431 | V4L2_CID_GAIN, 0, 244, 1, | |
432 | PAC7311_GAIN_DEFAULT); | |
433 | sd->hflip = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, | |
434 | V4L2_CID_HFLIP, 0, 1, 1, 0); | |
43f52bf2 HG |
435 | |
436 | if (hdl->error) { | |
437 | pr_err("Could not initialize controls\n"); | |
438 | return hdl->error; | |
439 | } | |
440 | ||
441 | v4l2_ctrl_auto_cluster(3, &gspca_dev->autogain, 0, false); | |
43f52bf2 HG |
442 | return 0; |
443 | } | |
444 | ||
445 | /* -- start the camera -- */ | |
72ab97ce | 446 | static int sd_start(struct gspca_dev *gspca_dev) |
6a7eba24 | 447 | { |
e52a5574 JFM |
448 | struct sd *sd = (struct sd *) gspca_dev; |
449 | ||
327c4abf | 450 | sd->sof_read = 0; |
739570bb | 451 | |
14799f6c | 452 | reg_w_var(gspca_dev, start_7311, |
1408b847 | 453 | page4_7311, sizeof(page4_7311)); |
43f52bf2 HG |
454 | setcontrast(gspca_dev, v4l2_ctrl_g_ctrl(sd->contrast)); |
455 | setgain(gspca_dev, v4l2_ctrl_g_ctrl(gspca_dev->gain)); | |
456 | setexposure(gspca_dev, v4l2_ctrl_g_ctrl(gspca_dev->exposure)); | |
6a6c70b8 | 457 | sethvflip(gspca_dev, v4l2_ctrl_g_ctrl(sd->hflip), 1); |
6a7eba24 JFM |
458 | |
459 | /* set correct resolution */ | |
c2446b3e | 460 | switch (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) { |
b053c1d0 | 461 | case 2: /* 160x120 */ |
14799f6c JFM |
462 | reg_w(gspca_dev, 0xff, 0x01); |
463 | reg_w(gspca_dev, 0x17, 0x20); | |
464 | reg_w(gspca_dev, 0x87, 0x10); | |
6a7eba24 | 465 | break; |
b053c1d0 | 466 | case 1: /* 320x240 */ |
14799f6c JFM |
467 | reg_w(gspca_dev, 0xff, 0x01); |
468 | reg_w(gspca_dev, 0x17, 0x30); | |
469 | reg_w(gspca_dev, 0x87, 0x11); | |
6a7eba24 JFM |
470 | break; |
471 | case 0: /* 640x480 */ | |
14799f6c JFM |
472 | reg_w(gspca_dev, 0xff, 0x01); |
473 | reg_w(gspca_dev, 0x17, 0x00); | |
474 | reg_w(gspca_dev, 0x87, 0x12); | |
6a7eba24 JFM |
475 | break; |
476 | } | |
477 | ||
327c4abf HG |
478 | sd->sof_read = 0; |
479 | sd->autogain_ignore_frames = 0; | |
480 | atomic_set(&sd->avg_lum, -1); | |
8a5b2e90 HG |
481 | |
482 | /* start stream */ | |
14799f6c JFM |
483 | reg_w(gspca_dev, 0xff, 0x01); |
484 | reg_w(gspca_dev, 0x78, 0x05); | |
1408b847 | 485 | |
14799f6c | 486 | return gspca_dev->usb_err; |
6a7eba24 JFM |
487 | } |
488 | ||
489 | static void sd_stopN(struct gspca_dev *gspca_dev) | |
490 | { | |
14799f6c JFM |
491 | reg_w(gspca_dev, 0xff, 0x04); |
492 | reg_w(gspca_dev, 0x27, 0x80); | |
493 | reg_w(gspca_dev, 0x28, 0xca); | |
494 | reg_w(gspca_dev, 0x29, 0x53); | |
495 | reg_w(gspca_dev, 0x2a, 0x0e); | |
496 | reg_w(gspca_dev, 0xff, 0x01); | |
497 | reg_w(gspca_dev, 0x3e, 0x20); | |
498 | reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */ | |
499 | reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */ | |
500 | reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */ | |
6a7eba24 JFM |
501 | } |
502 | ||
cebf3b67 | 503 | static void do_autogain(struct gspca_dev *gspca_dev) |
6a7eba24 | 504 | { |
8a5b2e90 HG |
505 | struct sd *sd = (struct sd *) gspca_dev; |
506 | int avg_lum = atomic_read(&sd->avg_lum); | |
038ec7c7 | 507 | int desired_lum, deadzone; |
8a5b2e90 | 508 | |
43f52bf2 | 509 | if (avg_lum == -1) |
8a5b2e90 HG |
510 | return; |
511 | ||
6a6c70b8 | 512 | desired_lum = 170; |
1408b847 | 513 | deadzone = 20; |
8a5b2e90 HG |
514 | |
515 | if (sd->autogain_ignore_frames > 0) | |
516 | sd->autogain_ignore_frames--; | |
43f52bf2 HG |
517 | else if (gspca_coarse_grained_expo_autogain(gspca_dev, avg_lum, |
518 | desired_lum, deadzone)) | |
8a5b2e90 | 519 | sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES; |
6a7eba24 JFM |
520 | } |
521 | ||
56f6f558 | 522 | /* JPEG header, part 1 */ |
cc409c0e | 523 | static const unsigned char pac_jpeg_header1[] = { |
56f6f558 MN |
524 | 0xff, 0xd8, /* SOI: Start of Image */ |
525 | ||
526 | 0xff, 0xc0, /* SOF0: Start of Frame (Baseline DCT) */ | |
527 | 0x00, 0x11, /* length = 17 bytes (including this length field) */ | |
528 | 0x08 /* Precision: 8 */ | |
529 | /* 2 bytes is placed here: number of image lines */ | |
530 | /* 2 bytes is placed here: samples per line */ | |
327c4abf HG |
531 | }; |
532 | ||
56f6f558 | 533 | /* JPEG header, continued */ |
cc409c0e | 534 | static const unsigned char pac_jpeg_header2[] = { |
56f6f558 MN |
535 | 0x03, /* Number of image components: 3 */ |
536 | 0x01, 0x21, 0x00, /* ID=1, Subsampling 1x1, Quantization table: 0 */ | |
537 | 0x02, 0x11, 0x01, /* ID=2, Subsampling 2x1, Quantization table: 1 */ | |
538 | 0x03, 0x11, 0x01, /* ID=3, Subsampling 2x1, Quantization table: 1 */ | |
539 | ||
540 | 0xff, 0xda, /* SOS: Start Of Scan */ | |
541 | 0x00, 0x0c, /* length = 12 bytes (including this length field) */ | |
542 | 0x03, /* number of components: 3 */ | |
543 | 0x01, 0x00, /* selector 1, table 0x00 */ | |
544 | 0x02, 0x11, /* selector 2, table 0x11 */ | |
545 | 0x03, 0x11, /* selector 3, table 0x11 */ | |
546 | 0x00, 0x3f, /* Spectral selection: 0 .. 63 */ | |
547 | 0x00 /* Successive approximation: 0 */ | |
327c4abf HG |
548 | }; |
549 | ||
cc409c0e | 550 | static void pac_start_frame(struct gspca_dev *gspca_dev, |
cc409c0e MN |
551 | __u16 lines, __u16 samples_per_line) |
552 | { | |
553 | unsigned char tmpbuf[4]; | |
554 | ||
76dd272b | 555 | gspca_frame_add(gspca_dev, FIRST_PACKET, |
cc409c0e MN |
556 | pac_jpeg_header1, sizeof(pac_jpeg_header1)); |
557 | ||
558 | tmpbuf[0] = lines >> 8; | |
559 | tmpbuf[1] = lines & 0xff; | |
560 | tmpbuf[2] = samples_per_line >> 8; | |
561 | tmpbuf[3] = samples_per_line & 0xff; | |
562 | ||
76dd272b | 563 | gspca_frame_add(gspca_dev, INTER_PACKET, |
cc409c0e | 564 | tmpbuf, sizeof(tmpbuf)); |
76dd272b | 565 | gspca_frame_add(gspca_dev, INTER_PACKET, |
cc409c0e MN |
566 | pac_jpeg_header2, sizeof(pac_jpeg_header2)); |
567 | } | |
568 | ||
e52a5574 | 569 | /* this function is run at interrupt level */ |
6a7eba24 | 570 | static void sd_pkt_scan(struct gspca_dev *gspca_dev, |
76dd272b | 571 | u8 *data, /* isoc packet */ |
6a7eba24 JFM |
572 | int len) /* iso packet length */ |
573 | { | |
574 | struct sd *sd = (struct sd *) gspca_dev; | |
b192ca98 | 575 | u8 *image; |
327c4abf HG |
576 | unsigned char *sof; |
577 | ||
a6b69e40 | 578 | sof = pac_find_sof(&sd->sof_read, data, len); |
327c4abf | 579 | if (sof) { |
327c4abf HG |
580 | int n, lum_offset, footer_length; |
581 | ||
4b8ceb6c HG |
582 | /* |
583 | * 6 bytes after the FF D9 EOF marker a number of lumination | |
584 | * bytes are send corresponding to different parts of the | |
585 | * image, the 14th and 15th byte after the EOF seem to | |
586 | * correspond to the center of the image. | |
587 | */ | |
1408b847 MN |
588 | lum_offset = 24 + sizeof pac_sof_marker; |
589 | footer_length = 26; | |
327c4abf HG |
590 | |
591 | /* Finish decoding current frame */ | |
592 | n = (sof - data) - (footer_length + sizeof pac_sof_marker); | |
593 | if (n < 0) { | |
b192ca98 | 594 | gspca_dev->image_len += n; |
327c4abf | 595 | n = 0; |
b192ca98 JFM |
596 | } else { |
597 | gspca_frame_add(gspca_dev, INTER_PACKET, data, n); | |
327c4abf | 598 | } |
f7059eaa JFM |
599 | image = gspca_dev->image; |
600 | if (image != NULL | |
b192ca98 JFM |
601 | && image[gspca_dev->image_len - 2] == 0xff |
602 | && image[gspca_dev->image_len - 1] == 0xd9) | |
603 | gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0); | |
327c4abf HG |
604 | |
605 | n = sof - data; | |
606 | len -= n; | |
607 | data = sof; | |
608 | ||
609 | /* Get average lumination */ | |
610 | if (gspca_dev->last_packet_type == LAST_PACKET && | |
038ec7c7 HG |
611 | n >= lum_offset) |
612 | atomic_set(&sd->avg_lum, data[-lum_offset] + | |
327c4abf | 613 | data[-lum_offset + 1]); |
038ec7c7 | 614 | else |
327c4abf | 615 | atomic_set(&sd->avg_lum, -1); |
327c4abf HG |
616 | |
617 | /* Start the new frame with the jpeg header */ | |
b192ca98 | 618 | pac_start_frame(gspca_dev, |
1408b847 | 619 | gspca_dev->height, gspca_dev->width); |
6a7eba24 | 620 | } |
76dd272b | 621 | gspca_frame_add(gspca_dev, INTER_PACKET, data, len); |
6a7eba24 JFM |
622 | } |
623 | ||
2856643e | 624 | #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE) |
32ea3e44 HG |
625 | static int sd_int_pkt_scan(struct gspca_dev *gspca_dev, |
626 | u8 *data, /* interrupt packet data */ | |
627 | int len) /* interrupt packet length */ | |
628 | { | |
629 | int ret = -EINVAL; | |
630 | u8 data0, data1; | |
631 | ||
632 | if (len == 2) { | |
633 | data0 = data[0]; | |
634 | data1 = data[1]; | |
635 | if ((data0 == 0x00 && data1 == 0x11) || | |
636 | (data0 == 0x22 && data1 == 0x33) || | |
637 | (data0 == 0x44 && data1 == 0x55) || | |
638 | (data0 == 0x66 && data1 == 0x77) || | |
639 | (data0 == 0x88 && data1 == 0x99) || | |
640 | (data0 == 0xaa && data1 == 0xbb) || | |
641 | (data0 == 0xcc && data1 == 0xdd) || | |
642 | (data0 == 0xee && data1 == 0xff)) { | |
643 | input_report_key(gspca_dev->input_dev, KEY_CAMERA, 1); | |
644 | input_sync(gspca_dev->input_dev); | |
645 | input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0); | |
646 | input_sync(gspca_dev->input_dev); | |
647 | ret = 0; | |
648 | } | |
649 | } | |
650 | ||
651 | return ret; | |
652 | } | |
653 | #endif | |
654 | ||
aabcdfb6 | 655 | static const struct sd_desc sd_desc = { |
6a7eba24 | 656 | .name = MODULE_NAME, |
6a7eba24 | 657 | .config = sd_config, |
012d6b02 | 658 | .init = sd_init, |
43f52bf2 | 659 | .init_controls = sd_init_controls, |
6a7eba24 JFM |
660 | .start = sd_start, |
661 | .stopN = sd_stopN, | |
6a7eba24 | 662 | .pkt_scan = sd_pkt_scan, |
cebf3b67 | 663 | .dq_callback = do_autogain, |
2856643e | 664 | #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE) |
32ea3e44 HG |
665 | .int_pkt_scan = sd_int_pkt_scan, |
666 | #endif | |
6a7eba24 JFM |
667 | }; |
668 | ||
669 | /* -- module initialisation -- */ | |
95c967c1 | 670 | static const struct usb_device_id device_table[] = { |
1408b847 MN |
671 | {USB_DEVICE(0x093a, 0x2600)}, |
672 | {USB_DEVICE(0x093a, 0x2601)}, | |
673 | {USB_DEVICE(0x093a, 0x2603)}, | |
674 | {USB_DEVICE(0x093a, 0x2608)}, | |
675 | {USB_DEVICE(0x093a, 0x260e)}, | |
676 | {USB_DEVICE(0x093a, 0x260f)}, | |
6a7eba24 JFM |
677 | {} |
678 | }; | |
679 | MODULE_DEVICE_TABLE(usb, device_table); | |
680 | ||
681 | /* -- device connect -- */ | |
95c967c1 | 682 | static int sd_probe(struct usb_interface *intf, |
6a7eba24 JFM |
683 | const struct usb_device_id *id) |
684 | { | |
685 | return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd), | |
686 | THIS_MODULE); | |
687 | } | |
688 | ||
689 | static struct usb_driver sd_driver = { | |
690 | .name = MODULE_NAME, | |
691 | .id_table = device_table, | |
692 | .probe = sd_probe, | |
693 | .disconnect = gspca_disconnect, | |
6a709749 JFM |
694 | #ifdef CONFIG_PM |
695 | .suspend = gspca_suspend, | |
696 | .resume = gspca_resume, | |
697 | #endif | |
6a7eba24 JFM |
698 | }; |
699 | ||
ecb3b2b3 | 700 | module_usb_driver(sd_driver); |