Commit | Line | Data |
---|---|---|
1e6dd65e MCC |
1 | /* |
2 | * Virtual Video driver - This code emulates a real video device with v4l2 api | |
3 | * | |
4 | * Copyright (c) 2006 by: | |
5 | * Mauro Carvalho Chehab <mchehab--a.t--infradead.org> | |
6 | * Ted Walther <ted--a.t--enumera.com> | |
7 | * John Sokol <sokol--a.t--videotechnology.com> | |
8 | * http://v4l.videotechnology.com/ | |
9 | * | |
e007a325 PO |
10 | * Conversion to videobuf2 by Pawel Osciak & Marek Szyprowski |
11 | * Copyright (c) 2010 Samsung Electronics | |
12 | * | |
1e6dd65e MCC |
13 | * This program is free software; you can redistribute it and/or modify |
14 | * it under the terms of the BSD Licence, GNU General Public License | |
15 | * as published by the Free Software Foundation; either version 2 of the | |
16 | * License, or (at your option) any later version | |
17 | */ | |
18 | #include <linux/module.h> | |
1e6dd65e | 19 | #include <linux/errno.h> |
1e6dd65e | 20 | #include <linux/kernel.h> |
1e6dd65e MCC |
21 | #include <linux/init.h> |
22 | #include <linux/sched.h> | |
6b46c397 | 23 | #include <linux/slab.h> |
730947bc | 24 | #include <linux/font.h> |
51b54029 | 25 | #include <linux/mutex.h> |
1e6dd65e | 26 | #include <linux/videodev2.h> |
1e6dd65e | 27 | #include <linux/kthread.h> |
7dfb7103 | 28 | #include <linux/freezer.h> |
e007a325 | 29 | #include <media/videobuf2-vmalloc.h> |
5ab6c9af HV |
30 | #include <media/v4l2-device.h> |
31 | #include <media/v4l2-ioctl.h> | |
7e996afa | 32 | #include <media/v4l2-ctrls.h> |
2e4784d0 | 33 | #include <media/v4l2-fh.h> |
c7a52f8d | 34 | #include <media/v4l2-event.h> |
730947bc | 35 | #include <media/v4l2-common.h> |
1e6dd65e | 36 | |
584ce48d | 37 | #define VIVI_MODULE_NAME "vivi" |
745271ae | 38 | |
1e6dd65e MCC |
39 | /* Wake up at about 30 fps */ |
40 | #define WAKE_NUMERATOR 30 | |
41 | #define WAKE_DENOMINATOR 1001 | |
42 | #define BUFFER_TIMEOUT msecs_to_jiffies(500) /* 0.5 seconds */ | |
43 | ||
730947bc HV |
44 | #define MAX_WIDTH 1920 |
45 | #define MAX_HEIGHT 1200 | |
46 | ||
1990d50b | 47 | #define VIVI_VERSION "0.8.1" |
1e6dd65e | 48 | |
5ab6c9af HV |
49 | MODULE_DESCRIPTION("Video Technology Magazine Virtual Video Capture Board"); |
50 | MODULE_AUTHOR("Mauro Carvalho Chehab, Ted Walther and John Sokol"); | |
51 | MODULE_LICENSE("Dual BSD/GPL"); | |
1990d50b | 52 | MODULE_VERSION(VIVI_VERSION); |
5ab6c9af HV |
53 | |
54 | static unsigned video_nr = -1; | |
55 | module_param(video_nr, uint, 0644); | |
56 | MODULE_PARM_DESC(video_nr, "videoX start number, -1 is autodetect"); | |
57 | ||
58 | static unsigned n_devs = 1; | |
59 | module_param(n_devs, uint, 0644); | |
60 | MODULE_PARM_DESC(n_devs, "number of video devices to create"); | |
61 | ||
62 | static unsigned debug; | |
63 | module_param(debug, uint, 0644); | |
64 | MODULE_PARM_DESC(debug, "activates debug info"); | |
65 | ||
66 | static unsigned int vid_limit = 16; | |
67 | module_param(vid_limit, uint, 0644); | |
68 | MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes"); | |
69 | ||
730947bc HV |
70 | /* Global font descriptor */ |
71 | static const u8 *font8x16; | |
1e6dd65e | 72 | |
5ab6c9af HV |
73 | #define dprintk(dev, level, fmt, arg...) \ |
74 | v4l2_dbg(level, debug, &dev->v4l2_dev, fmt, ## arg) | |
1e6dd65e MCC |
75 | |
76 | /* ------------------------------------------------------------------ | |
77 | Basic structures | |
78 | ------------------------------------------------------------------*/ | |
79 | ||
80 | struct vivi_fmt { | |
81 | char *name; | |
82 | u32 fourcc; /* v4l2 format id */ | |
83 | int depth; | |
84 | }; | |
85 | ||
d891f475 MD |
86 | static struct vivi_fmt formats[] = { |
87 | { | |
88 | .name = "4:2:2, packed, YUYV", | |
89 | .fourcc = V4L2_PIX_FMT_YUYV, | |
90 | .depth = 16, | |
91 | }, | |
fca36bab MD |
92 | { |
93 | .name = "4:2:2, packed, UYVY", | |
94 | .fourcc = V4L2_PIX_FMT_UYVY, | |
95 | .depth = 16, | |
96 | }, | |
3d51dca2 HV |
97 | { |
98 | .name = "4:2:2, packed, YVYU", | |
99 | .fourcc = V4L2_PIX_FMT_YVYU, | |
100 | .depth = 16, | |
101 | }, | |
102 | { | |
103 | .name = "4:2:2, packed, VYUY", | |
104 | .fourcc = V4L2_PIX_FMT_VYUY, | |
105 | .depth = 16, | |
106 | }, | |
aeadb5d4 MD |
107 | { |
108 | .name = "RGB565 (LE)", | |
109 | .fourcc = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */ | |
110 | .depth = 16, | |
111 | }, | |
112 | { | |
113 | .name = "RGB565 (BE)", | |
114 | .fourcc = V4L2_PIX_FMT_RGB565X, /* rrrrrggg gggbbbbb */ | |
115 | .depth = 16, | |
116 | }, | |
def52393 MD |
117 | { |
118 | .name = "RGB555 (LE)", | |
119 | .fourcc = V4L2_PIX_FMT_RGB555, /* gggbbbbb arrrrrgg */ | |
120 | .depth = 16, | |
121 | }, | |
122 | { | |
123 | .name = "RGB555 (BE)", | |
124 | .fourcc = V4L2_PIX_FMT_RGB555X, /* arrrrrgg gggbbbbb */ | |
125 | .depth = 16, | |
126 | }, | |
3d51dca2 HV |
127 | { |
128 | .name = "RGB24 (LE)", | |
129 | .fourcc = V4L2_PIX_FMT_RGB24, /* rgb */ | |
130 | .depth = 24, | |
131 | }, | |
132 | { | |
133 | .name = "RGB24 (BE)", | |
134 | .fourcc = V4L2_PIX_FMT_BGR24, /* bgr */ | |
135 | .depth = 24, | |
136 | }, | |
137 | { | |
138 | .name = "RGB32 (LE)", | |
139 | .fourcc = V4L2_PIX_FMT_RGB32, /* argb */ | |
140 | .depth = 32, | |
141 | }, | |
142 | { | |
143 | .name = "RGB32 (BE)", | |
144 | .fourcc = V4L2_PIX_FMT_BGR32, /* bgra */ | |
145 | .depth = 32, | |
146 | }, | |
1e6dd65e MCC |
147 | }; |
148 | ||
d891f475 MD |
149 | static struct vivi_fmt *get_format(struct v4l2_format *f) |
150 | { | |
151 | struct vivi_fmt *fmt; | |
152 | unsigned int k; | |
153 | ||
154 | for (k = 0; k < ARRAY_SIZE(formats); k++) { | |
155 | fmt = &formats[k]; | |
156 | if (fmt->fourcc == f->fmt.pix.pixelformat) | |
157 | break; | |
158 | } | |
159 | ||
160 | if (k == ARRAY_SIZE(formats)) | |
161 | return NULL; | |
162 | ||
163 | return &formats[k]; | |
164 | } | |
165 | ||
1e6dd65e MCC |
166 | /* buffer for one video frame */ |
167 | struct vivi_buffer { | |
168 | /* common v4l buffer stuff -- must be first */ | |
e007a325 PO |
169 | struct vb2_buffer vb; |
170 | struct list_head list; | |
1e6dd65e | 171 | struct vivi_fmt *fmt; |
1e6dd65e MCC |
172 | }; |
173 | ||
174 | struct vivi_dmaqueue { | |
175 | struct list_head active; | |
1e6dd65e MCC |
176 | |
177 | /* thread for generating video stream*/ | |
178 | struct task_struct *kthread; | |
179 | wait_queue_head_t wq; | |
180 | /* Counters to control fps rate */ | |
181 | int frame; | |
182 | int ini_jiffies; | |
183 | }; | |
184 | ||
185 | static LIST_HEAD(vivi_devlist); | |
186 | ||
187 | struct vivi_dev { | |
188 | struct list_head vivi_devlist; | |
5ab6c9af | 189 | struct v4l2_device v4l2_dev; |
7e996afa | 190 | struct v4l2_ctrl_handler ctrl_handler; |
70bd97ae | 191 | struct video_device vdev; |
1e6dd65e | 192 | |
730947bc | 193 | /* controls */ |
7e996afa HV |
194 | struct v4l2_ctrl *brightness; |
195 | struct v4l2_ctrl *contrast; | |
196 | struct v4l2_ctrl *saturation; | |
197 | struct v4l2_ctrl *hue; | |
a1c894fb HV |
198 | struct { |
199 | /* autogain/gain cluster */ | |
200 | struct v4l2_ctrl *autogain; | |
201 | struct v4l2_ctrl *gain; | |
202 | }; | |
7e996afa | 203 | struct v4l2_ctrl *volume; |
7088f4df | 204 | struct v4l2_ctrl *alpha; |
7e996afa HV |
205 | struct v4l2_ctrl *button; |
206 | struct v4l2_ctrl *boolean; | |
207 | struct v4l2_ctrl *int32; | |
208 | struct v4l2_ctrl *int64; | |
209 | struct v4l2_ctrl *menu; | |
210 | struct v4l2_ctrl *string; | |
b6d17a56 | 211 | struct v4l2_ctrl *bitmask; |
c520331a | 212 | struct v4l2_ctrl *int_menu; |
730947bc | 213 | |
55862ac9 | 214 | spinlock_t slock; |
aa9dbac4 | 215 | struct mutex mutex; |
1e6dd65e | 216 | |
1e6dd65e MCC |
217 | struct vivi_dmaqueue vidq; |
218 | ||
219 | /* Several counters */ | |
730947bc | 220 | unsigned ms; |
dfd8c04e | 221 | unsigned long jiffies; |
7e996afa | 222 | unsigned button_pressed; |
025341d4 MCC |
223 | |
224 | int mv_count; /* Controls bars movement */ | |
e164b58a MCC |
225 | |
226 | /* Input Number */ | |
227 | int input; | |
c41ee24b | 228 | |
1e6dd65e MCC |
229 | /* video capture */ |
230 | struct vivi_fmt *fmt; | |
543323bc | 231 | unsigned int width, height; |
e007a325 PO |
232 | struct vb2_queue vb_vidq; |
233 | enum v4l2_field field; | |
234 | unsigned int field_count; | |
1e6dd65e | 235 | |
3d51dca2 HV |
236 | u8 bars[9][3]; |
237 | u8 line[MAX_WIDTH * 8]; | |
238 | unsigned int pixelsize; | |
7088f4df | 239 | u8 alpha_component; |
1e6dd65e MCC |
240 | }; |
241 | ||
242 | /* ------------------------------------------------------------------ | |
243 | DMA and thread functions | |
244 | ------------------------------------------------------------------*/ | |
245 | ||
246 | /* Bars and Colors should match positions */ | |
247 | ||
248 | enum colors { | |
249 | WHITE, | |
730947bc | 250 | AMBER, |
1e6dd65e MCC |
251 | CYAN, |
252 | GREEN, | |
253 | MAGENTA, | |
254 | RED, | |
543323bc MCC |
255 | BLUE, |
256 | BLACK, | |
730947bc | 257 | TEXT_BLACK, |
1e6dd65e MCC |
258 | }; |
259 | ||
730947bc | 260 | /* R G B */ |
e164b58a | 261 | #define COLOR_WHITE {204, 204, 204} |
730947bc HV |
262 | #define COLOR_AMBER {208, 208, 0} |
263 | #define COLOR_CYAN { 0, 206, 206} | |
e164b58a MCC |
264 | #define COLOR_GREEN { 0, 239, 0} |
265 | #define COLOR_MAGENTA {239, 0, 239} | |
266 | #define COLOR_RED {205, 0, 0} | |
267 | #define COLOR_BLUE { 0, 0, 255} | |
268 | #define COLOR_BLACK { 0, 0, 0} | |
269 | ||
270 | struct bar_std { | |
730947bc | 271 | u8 bar[9][3]; |
e164b58a MCC |
272 | }; |
273 | ||
274 | /* Maximum number of bars are 10 - otherwise, the input print code | |
275 | should be modified */ | |
276 | static struct bar_std bars[] = { | |
277 | { /* Standard ITU-R color bar sequence */ | |
730947bc HV |
278 | { COLOR_WHITE, COLOR_AMBER, COLOR_CYAN, COLOR_GREEN, |
279 | COLOR_MAGENTA, COLOR_RED, COLOR_BLUE, COLOR_BLACK, COLOR_BLACK } | |
e164b58a | 280 | }, { |
730947bc HV |
281 | { COLOR_WHITE, COLOR_AMBER, COLOR_BLACK, COLOR_WHITE, |
282 | COLOR_AMBER, COLOR_BLACK, COLOR_WHITE, COLOR_AMBER, COLOR_BLACK } | |
e164b58a | 283 | }, { |
730947bc HV |
284 | { COLOR_WHITE, COLOR_CYAN, COLOR_BLACK, COLOR_WHITE, |
285 | COLOR_CYAN, COLOR_BLACK, COLOR_WHITE, COLOR_CYAN, COLOR_BLACK } | |
e164b58a | 286 | }, { |
730947bc HV |
287 | { COLOR_WHITE, COLOR_GREEN, COLOR_BLACK, COLOR_WHITE, |
288 | COLOR_GREEN, COLOR_BLACK, COLOR_WHITE, COLOR_GREEN, COLOR_BLACK } | |
e164b58a | 289 | }, |
1e6dd65e MCC |
290 | }; |
291 | ||
e164b58a MCC |
292 | #define NUM_INPUTS ARRAY_SIZE(bars) |
293 | ||
543323bc MCC |
294 | #define TO_Y(r, g, b) \ |
295 | (((16829 * r + 33039 * g + 6416 * b + 32768) >> 16) + 16) | |
1e6dd65e | 296 | /* RGB to V(Cr) Color transform */ |
543323bc MCC |
297 | #define TO_V(r, g, b) \ |
298 | (((28784 * r - 24103 * g - 4681 * b + 32768) >> 16) + 128) | |
1e6dd65e | 299 | /* RGB to U(Cb) Color transform */ |
543323bc MCC |
300 | #define TO_U(r, g, b) \ |
301 | (((-9714 * r - 19070 * g + 28784 * b + 32768) >> 16) + 128) | |
1e6dd65e | 302 | |
c285addb | 303 | /* precalculate color bar values to speed up rendering */ |
730947bc | 304 | static void precalculate_bars(struct vivi_dev *dev) |
c285addb | 305 | { |
730947bc | 306 | u8 r, g, b; |
c285addb MCC |
307 | int k, is_yuv; |
308 | ||
730947bc HV |
309 | for (k = 0; k < 9; k++) { |
310 | r = bars[dev->input].bar[k][0]; | |
311 | g = bars[dev->input].bar[k][1]; | |
312 | b = bars[dev->input].bar[k][2]; | |
c285addb MCC |
313 | is_yuv = 0; |
314 | ||
730947bc | 315 | switch (dev->fmt->fourcc) { |
c285addb MCC |
316 | case V4L2_PIX_FMT_YUYV: |
317 | case V4L2_PIX_FMT_UYVY: | |
3d51dca2 HV |
318 | case V4L2_PIX_FMT_YVYU: |
319 | case V4L2_PIX_FMT_VYUY: | |
c285addb MCC |
320 | is_yuv = 1; |
321 | break; | |
322 | case V4L2_PIX_FMT_RGB565: | |
323 | case V4L2_PIX_FMT_RGB565X: | |
324 | r >>= 3; | |
325 | g >>= 2; | |
326 | b >>= 3; | |
327 | break; | |
328 | case V4L2_PIX_FMT_RGB555: | |
329 | case V4L2_PIX_FMT_RGB555X: | |
330 | r >>= 3; | |
331 | g >>= 3; | |
332 | b >>= 3; | |
333 | break; | |
3d51dca2 HV |
334 | case V4L2_PIX_FMT_RGB24: |
335 | case V4L2_PIX_FMT_BGR24: | |
336 | case V4L2_PIX_FMT_RGB32: | |
337 | case V4L2_PIX_FMT_BGR32: | |
338 | break; | |
c285addb MCC |
339 | } |
340 | ||
341 | if (is_yuv) { | |
730947bc HV |
342 | dev->bars[k][0] = TO_Y(r, g, b); /* Luma */ |
343 | dev->bars[k][1] = TO_U(r, g, b); /* Cb */ | |
344 | dev->bars[k][2] = TO_V(r, g, b); /* Cr */ | |
c285addb | 345 | } else { |
730947bc HV |
346 | dev->bars[k][0] = r; |
347 | dev->bars[k][1] = g; | |
348 | dev->bars[k][2] = b; | |
c285addb MCC |
349 | } |
350 | } | |
c285addb MCC |
351 | } |
352 | ||
e164b58a MCC |
353 | #define TSTAMP_MIN_Y 24 |
354 | #define TSTAMP_MAX_Y (TSTAMP_MIN_Y + 15) | |
355 | #define TSTAMP_INPUT_X 10 | |
356 | #define TSTAMP_MIN_X (54 + TSTAMP_INPUT_X) | |
1e6dd65e | 357 | |
3d51dca2 HV |
358 | /* 'odd' is true for pixels 1, 3, 5, etc. and false for pixels 0, 2, 4, etc. */ |
359 | static void gen_twopix(struct vivi_dev *dev, u8 *buf, int colorpos, bool odd) | |
74d7c5af | 360 | { |
730947bc | 361 | u8 r_y, g_u, b_v; |
7088f4df | 362 | u8 alpha = dev->alpha_component; |
74d7c5af | 363 | int color; |
730947bc | 364 | u8 *p; |
74d7c5af | 365 | |
730947bc HV |
366 | r_y = dev->bars[colorpos][0]; /* R or precalculated Y */ |
367 | g_u = dev->bars[colorpos][1]; /* G or precalculated U */ | |
368 | b_v = dev->bars[colorpos][2]; /* B or precalculated V */ | |
74d7c5af | 369 | |
3d51dca2 | 370 | for (color = 0; color < dev->pixelsize; color++) { |
74d7c5af MD |
371 | p = buf + color; |
372 | ||
730947bc | 373 | switch (dev->fmt->fourcc) { |
d891f475 MD |
374 | case V4L2_PIX_FMT_YUYV: |
375 | switch (color) { | |
376 | case 0: | |
d891f475 MD |
377 | *p = r_y; |
378 | break; | |
379 | case 1: | |
3d51dca2 | 380 | *p = odd ? b_v : g_u; |
d891f475 MD |
381 | break; |
382 | } | |
74d7c5af | 383 | break; |
fca36bab MD |
384 | case V4L2_PIX_FMT_UYVY: |
385 | switch (color) { | |
3d51dca2 HV |
386 | case 0: |
387 | *p = odd ? b_v : g_u; | |
388 | break; | |
fca36bab | 389 | case 1: |
fca36bab MD |
390 | *p = r_y; |
391 | break; | |
3d51dca2 HV |
392 | } |
393 | break; | |
394 | case V4L2_PIX_FMT_YVYU: | |
395 | switch (color) { | |
396 | case 0: | |
397 | *p = r_y; | |
398 | break; | |
399 | case 1: | |
400 | *p = odd ? g_u : b_v; | |
401 | break; | |
402 | } | |
403 | break; | |
404 | case V4L2_PIX_FMT_VYUY: | |
405 | switch (color) { | |
fca36bab | 406 | case 0: |
3d51dca2 | 407 | *p = odd ? g_u : b_v; |
fca36bab | 408 | break; |
3d51dca2 HV |
409 | case 1: |
410 | *p = r_y; | |
fca36bab MD |
411 | break; |
412 | } | |
413 | break; | |
aeadb5d4 MD |
414 | case V4L2_PIX_FMT_RGB565: |
415 | switch (color) { | |
416 | case 0: | |
aeadb5d4 MD |
417 | *p = (g_u << 5) | b_v; |
418 | break; | |
419 | case 1: | |
aeadb5d4 MD |
420 | *p = (r_y << 3) | (g_u >> 3); |
421 | break; | |
422 | } | |
423 | break; | |
424 | case V4L2_PIX_FMT_RGB565X: | |
425 | switch (color) { | |
426 | case 0: | |
aeadb5d4 MD |
427 | *p = (r_y << 3) | (g_u >> 3); |
428 | break; | |
429 | case 1: | |
aeadb5d4 MD |
430 | *p = (g_u << 5) | b_v; |
431 | break; | |
432 | } | |
433 | break; | |
def52393 MD |
434 | case V4L2_PIX_FMT_RGB555: |
435 | switch (color) { | |
436 | case 0: | |
def52393 MD |
437 | *p = (g_u << 5) | b_v; |
438 | break; | |
439 | case 1: | |
7088f4df | 440 | *p = (alpha & 0x80) | (r_y << 2) | (g_u >> 3); |
def52393 MD |
441 | break; |
442 | } | |
443 | break; | |
444 | case V4L2_PIX_FMT_RGB555X: | |
445 | switch (color) { | |
446 | case 0: | |
7088f4df | 447 | *p = (alpha & 0x80) | (r_y << 2) | (g_u >> 3); |
def52393 MD |
448 | break; |
449 | case 1: | |
def52393 MD |
450 | *p = (g_u << 5) | b_v; |
451 | break; | |
452 | } | |
453 | break; | |
3d51dca2 HV |
454 | case V4L2_PIX_FMT_RGB24: |
455 | switch (color) { | |
456 | case 0: | |
457 | *p = r_y; | |
458 | break; | |
459 | case 1: | |
460 | *p = g_u; | |
461 | break; | |
462 | case 2: | |
463 | *p = b_v; | |
464 | break; | |
465 | } | |
466 | break; | |
467 | case V4L2_PIX_FMT_BGR24: | |
468 | switch (color) { | |
469 | case 0: | |
470 | *p = b_v; | |
471 | break; | |
472 | case 1: | |
473 | *p = g_u; | |
474 | break; | |
475 | case 2: | |
476 | *p = r_y; | |
477 | break; | |
478 | } | |
479 | break; | |
480 | case V4L2_PIX_FMT_RGB32: | |
481 | switch (color) { | |
482 | case 0: | |
7088f4df | 483 | *p = alpha; |
3d51dca2 HV |
484 | break; |
485 | case 1: | |
486 | *p = r_y; | |
487 | break; | |
488 | case 2: | |
489 | *p = g_u; | |
490 | break; | |
491 | case 3: | |
492 | *p = b_v; | |
493 | break; | |
494 | } | |
495 | break; | |
496 | case V4L2_PIX_FMT_BGR32: | |
497 | switch (color) { | |
498 | case 0: | |
499 | *p = b_v; | |
500 | break; | |
501 | case 1: | |
502 | *p = g_u; | |
503 | break; | |
504 | case 2: | |
505 | *p = r_y; | |
506 | break; | |
507 | case 3: | |
7088f4df | 508 | *p = alpha; |
3d51dca2 HV |
509 | break; |
510 | } | |
511 | break; | |
74d7c5af MD |
512 | } |
513 | } | |
514 | } | |
515 | ||
730947bc | 516 | static void precalculate_line(struct vivi_dev *dev) |
1e6dd65e | 517 | { |
730947bc | 518 | int w; |
1e6dd65e | 519 | |
3d51dca2 HV |
520 | for (w = 0; w < dev->width * 2; w++) { |
521 | int colorpos = w / (dev->width / 8) % 8; | |
74d7c5af | 522 | |
3d51dca2 | 523 | gen_twopix(dev, dev->line + w * dev->pixelsize, colorpos, w & 1); |
1e6dd65e | 524 | } |
730947bc | 525 | } |
1e6dd65e | 526 | |
730947bc HV |
527 | static void gen_text(struct vivi_dev *dev, char *basep, |
528 | int y, int x, char *text) | |
529 | { | |
530 | int line; | |
e164b58a | 531 | |
730947bc HV |
532 | /* Checks if it is possible to show string */ |
533 | if (y + 16 >= dev->height || x + strlen(text) * 8 >= dev->width) | |
534 | return; | |
1e6dd65e MCC |
535 | |
536 | /* Print stream time */ | |
730947bc HV |
537 | for (line = y; line < y + 16; line++) { |
538 | int j = 0; | |
3d51dca2 | 539 | char *pos = basep + line * dev->width * dev->pixelsize + x * dev->pixelsize; |
730947bc HV |
540 | char *s; |
541 | ||
542 | for (s = text; *s; s++) { | |
543 | u8 chr = font8x16[*s * 16 + line - y]; | |
544 | int i; | |
545 | ||
546 | for (i = 0; i < 7; i++, j++) { | |
74d7c5af | 547 | /* Draw white font on black background */ |
730947bc | 548 | if (chr & (1 << (7 - i))) |
3d51dca2 | 549 | gen_twopix(dev, pos + j * dev->pixelsize, WHITE, (x+y) & 1); |
74d7c5af | 550 | else |
3d51dca2 | 551 | gen_twopix(dev, pos + j * dev->pixelsize, TEXT_BLACK, (x+y) & 1); |
1e6dd65e MCC |
552 | } |
553 | } | |
554 | } | |
1e6dd65e | 555 | } |
78718e5d | 556 | |
730947bc | 557 | static void vivi_fillbuff(struct vivi_dev *dev, struct vivi_buffer *buf) |
1e6dd65e | 558 | { |
e007a325 PO |
559 | int wmax = dev->width; |
560 | int hmax = dev->height; | |
1e6dd65e | 561 | struct timeval ts; |
e007a325 | 562 | void *vbuf = vb2_plane_vaddr(&buf->vb, 0); |
730947bc HV |
563 | unsigned ms; |
564 | char str[100]; | |
565 | int h, line = 1; | |
a1c894fb | 566 | s32 gain; |
b50e7fe9 | 567 | |
5c554e6b | 568 | if (!vbuf) |
5a037706 | 569 | return; |
1e6dd65e | 570 | |
730947bc | 571 | for (h = 0; h < hmax; h++) |
3d51dca2 HV |
572 | memcpy(vbuf + h * wmax * dev->pixelsize, |
573 | dev->line + (dev->mv_count % wmax) * dev->pixelsize, | |
574 | wmax * dev->pixelsize); | |
5a037706 | 575 | |
1e6dd65e MCC |
576 | /* Updates stream time */ |
577 | ||
730947bc | 578 | dev->ms += jiffies_to_msecs(jiffies - dev->jiffies); |
543323bc | 579 | dev->jiffies = jiffies; |
730947bc HV |
580 | ms = dev->ms; |
581 | snprintf(str, sizeof(str), " %02d:%02d:%02d:%03d ", | |
582 | (ms / (60 * 60 * 1000)) % 24, | |
583 | (ms / (60 * 1000)) % 60, | |
584 | (ms / 1000) % 60, | |
585 | ms % 1000); | |
586 | gen_text(dev, vbuf, line++ * 16, 16, str); | |
587 | snprintf(str, sizeof(str), " %dx%d, input %d ", | |
588 | dev->width, dev->height, dev->input); | |
589 | gen_text(dev, vbuf, line++ * 16, 16, str); | |
590 | ||
a1c894fb | 591 | gain = v4l2_ctrl_g_ctrl(dev->gain); |
77e7c4e6 | 592 | mutex_lock(dev->ctrl_handler.lock); |
730947bc | 593 | snprintf(str, sizeof(str), " brightness %3d, contrast %3d, saturation %3d, hue %d ", |
7e996afa HV |
594 | dev->brightness->cur.val, |
595 | dev->contrast->cur.val, | |
596 | dev->saturation->cur.val, | |
597 | dev->hue->cur.val); | |
730947bc | 598 | gen_text(dev, vbuf, line++ * 16, 16, str); |
7088f4df HV |
599 | snprintf(str, sizeof(str), " autogain %d, gain %3d, volume %3d, alpha 0x%02x ", |
600 | dev->autogain->cur.val, gain, dev->volume->cur.val, | |
601 | dev->alpha->cur.val); | |
730947bc | 602 | gen_text(dev, vbuf, line++ * 16, 16, str); |
b6d17a56 | 603 | snprintf(str, sizeof(str), " int32 %d, int64 %lld, bitmask %08x ", |
7e996afa | 604 | dev->int32->cur.val, |
b6d17a56 HV |
605 | dev->int64->cur.val64, |
606 | dev->bitmask->cur.val); | |
7e996afa HV |
607 | gen_text(dev, vbuf, line++ * 16, 16, str); |
608 | snprintf(str, sizeof(str), " boolean %d, menu %s, string \"%s\" ", | |
609 | dev->boolean->cur.val, | |
610 | dev->menu->qmenu[dev->menu->cur.val], | |
611 | dev->string->cur.string); | |
f70cfc7f | 612 | gen_text(dev, vbuf, line++ * 16, 16, str); |
c520331a SA |
613 | snprintf(str, sizeof(str), " integer_menu %lld, value %d ", |
614 | dev->int_menu->qmenu_int[dev->int_menu->cur.val], | |
615 | dev->int_menu->cur.val); | |
616 | gen_text(dev, vbuf, line++ * 16, 16, str); | |
77e7c4e6 | 617 | mutex_unlock(dev->ctrl_handler.lock); |
7e996afa HV |
618 | if (dev->button_pressed) { |
619 | dev->button_pressed--; | |
620 | snprintf(str, sizeof(str), " button pressed!"); | |
621 | gen_text(dev, vbuf, line++ * 16, 16, str); | |
622 | } | |
730947bc HV |
623 | |
624 | dev->mv_count += 2; | |
1e6dd65e | 625 | |
e007a325 PO |
626 | buf->vb.v4l2_buf.field = dev->field; |
627 | dev->field_count++; | |
628 | buf->vb.v4l2_buf.sequence = dev->field_count >> 1; | |
1e6dd65e | 629 | do_gettimeofday(&ts); |
e007a325 | 630 | buf->vb.v4l2_buf.timestamp = ts; |
1e6dd65e MCC |
631 | } |
632 | ||
730947bc | 633 | static void vivi_thread_tick(struct vivi_dev *dev) |
1e6dd65e | 634 | { |
78718e5d | 635 | struct vivi_dmaqueue *dma_q = &dev->vidq; |
730947bc | 636 | struct vivi_buffer *buf; |
78718e5d | 637 | unsigned long flags = 0; |
1e6dd65e | 638 | |
78718e5d | 639 | dprintk(dev, 1, "Thread tick\n"); |
1e6dd65e | 640 | |
78718e5d BP |
641 | spin_lock_irqsave(&dev->slock, flags); |
642 | if (list_empty(&dma_q->active)) { | |
643 | dprintk(dev, 1, "No active queue to serve\n"); | |
1de5be5e HV |
644 | spin_unlock_irqrestore(&dev->slock, flags); |
645 | return; | |
78718e5d | 646 | } |
1e6dd65e | 647 | |
e007a325 PO |
648 | buf = list_entry(dma_q->active.next, struct vivi_buffer, list); |
649 | list_del(&buf->list); | |
1de5be5e | 650 | spin_unlock_irqrestore(&dev->slock, flags); |
1e6dd65e | 651 | |
e007a325 | 652 | do_gettimeofday(&buf->vb.v4l2_buf.timestamp); |
78718e5d BP |
653 | |
654 | /* Fill buffer */ | |
730947bc | 655 | vivi_fillbuff(dev, buf); |
78718e5d BP |
656 | dprintk(dev, 1, "filled buffer %p\n", buf); |
657 | ||
e007a325 PO |
658 | vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE); |
659 | dprintk(dev, 2, "[%p/%d] done\n", buf, buf->vb.v4l2_buf.index); | |
1e6dd65e MCC |
660 | } |
661 | ||
6594ad82 MCC |
662 | #define frames_to_ms(frames) \ |
663 | ((frames * WAKE_NUMERATOR * 1000) / WAKE_DENOMINATOR) | |
664 | ||
730947bc | 665 | static void vivi_sleep(struct vivi_dev *dev) |
1e6dd65e | 666 | { |
78718e5d BP |
667 | struct vivi_dmaqueue *dma_q = &dev->vidq; |
668 | int timeout; | |
1e6dd65e MCC |
669 | DECLARE_WAITQUEUE(wait, current); |
670 | ||
7e28adb2 | 671 | dprintk(dev, 1, "%s dma_q=0x%08lx\n", __func__, |
6c2f9901 | 672 | (unsigned long)dma_q); |
1e6dd65e MCC |
673 | |
674 | add_wait_queue(&dma_q->wq, &wait); | |
6594ad82 MCC |
675 | if (kthread_should_stop()) |
676 | goto stop_task; | |
677 | ||
6594ad82 | 678 | /* Calculate time to wake up */ |
78718e5d | 679 | timeout = msecs_to_jiffies(frames_to_ms(1)); |
6594ad82 | 680 | |
730947bc | 681 | vivi_thread_tick(dev); |
6594ad82 MCC |
682 | |
683 | schedule_timeout_interruptible(timeout); | |
1e6dd65e | 684 | |
6594ad82 | 685 | stop_task: |
1e6dd65e MCC |
686 | remove_wait_queue(&dma_q->wq, &wait); |
687 | try_to_freeze(); | |
688 | } | |
689 | ||
972c3517 | 690 | static int vivi_thread(void *data) |
1e6dd65e | 691 | { |
730947bc | 692 | struct vivi_dev *dev = data; |
1e6dd65e | 693 | |
6c2f9901 | 694 | dprintk(dev, 1, "thread started\n"); |
1e6dd65e | 695 | |
83144186 | 696 | set_freezable(); |
0b600512 | 697 | |
1e6dd65e | 698 | for (;;) { |
730947bc | 699 | vivi_sleep(dev); |
1e6dd65e MCC |
700 | |
701 | if (kthread_should_stop()) | |
702 | break; | |
703 | } | |
6c2f9901 | 704 | dprintk(dev, 1, "thread: exit\n"); |
1e6dd65e MCC |
705 | return 0; |
706 | } | |
707 | ||
e007a325 | 708 | static int vivi_start_generating(struct vivi_dev *dev) |
1e6dd65e | 709 | { |
78718e5d | 710 | struct vivi_dmaqueue *dma_q = &dev->vidq; |
6c2f9901 | 711 | |
7e28adb2 | 712 | dprintk(dev, 1, "%s\n", __func__); |
1e6dd65e | 713 | |
730947bc HV |
714 | /* Resets frame counters */ |
715 | dev->ms = 0; | |
716 | dev->mv_count = 0; | |
717 | dev->jiffies = jiffies; | |
718 | ||
719 | dma_q->frame = 0; | |
720 | dma_q->ini_jiffies = jiffies; | |
721 | dma_q->kthread = kthread_run(vivi_thread, dev, dev->v4l2_dev.name); | |
1e6dd65e | 722 | |
054afee4 | 723 | if (IS_ERR(dma_q->kthread)) { |
5ab6c9af | 724 | v4l2_err(&dev->v4l2_dev, "kernel_thread() failed\n"); |
e007a325 | 725 | return PTR_ERR(dma_q->kthread); |
1e6dd65e | 726 | } |
0b600512 MCC |
727 | /* Wakes thread */ |
728 | wake_up_interruptible(&dma_q->wq); | |
729 | ||
7e28adb2 | 730 | dprintk(dev, 1, "returning from %s\n", __func__); |
e007a325 | 731 | return 0; |
1e6dd65e MCC |
732 | } |
733 | ||
e007a325 | 734 | static void vivi_stop_generating(struct vivi_dev *dev) |
1e6dd65e | 735 | { |
730947bc | 736 | struct vivi_dmaqueue *dma_q = &dev->vidq; |
6c2f9901 | 737 | |
7e28adb2 | 738 | dprintk(dev, 1, "%s\n", __func__); |
730947bc | 739 | |
1e6dd65e MCC |
740 | /* shutdown control thread */ |
741 | if (dma_q->kthread) { | |
742 | kthread_stop(dma_q->kthread); | |
543323bc | 743 | dma_q->kthread = NULL; |
1e6dd65e | 744 | } |
730947bc | 745 | |
e007a325 PO |
746 | /* |
747 | * Typical driver might need to wait here until dma engine stops. | |
748 | * In this case we can abort imiedetly, so it's just a noop. | |
749 | */ | |
750 | ||
751 | /* Release all active buffers */ | |
752 | while (!list_empty(&dma_q->active)) { | |
753 | struct vivi_buffer *buf; | |
754 | buf = list_entry(dma_q->active.next, struct vivi_buffer, list); | |
755 | list_del(&buf->list); | |
756 | vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); | |
757 | dprintk(dev, 2, "[%p/%d] done\n", buf, buf->vb.v4l2_buf.index); | |
758 | } | |
1e6dd65e | 759 | } |
1e6dd65e MCC |
760 | /* ------------------------------------------------------------------ |
761 | Videobuf operations | |
762 | ------------------------------------------------------------------*/ | |
fc714e70 GL |
763 | static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt, |
764 | unsigned int *nbuffers, unsigned int *nplanes, | |
765 | unsigned int sizes[], void *alloc_ctxs[]) | |
1e6dd65e | 766 | { |
e007a325 PO |
767 | struct vivi_dev *dev = vb2_get_drv_priv(vq); |
768 | unsigned long size; | |
769 | ||
2e90c6c3 HV |
770 | if (fmt) |
771 | size = fmt->fmt.pix.sizeimage; | |
772 | else | |
773 | size = dev->width * dev->height * dev->pixelsize; | |
774 | ||
775 | if (size == 0) | |
776 | return -EINVAL; | |
1e6dd65e | 777 | |
e007a325 PO |
778 | if (0 == *nbuffers) |
779 | *nbuffers = 32; | |
1e6dd65e | 780 | |
e007a325 PO |
781 | while (size * *nbuffers > vid_limit * 1024 * 1024) |
782 | (*nbuffers)--; | |
6bb2790f | 783 | |
e007a325 | 784 | *nplanes = 1; |
6bb2790f | 785 | |
e007a325 PO |
786 | sizes[0] = size; |
787 | ||
788 | /* | |
789 | * videobuf2-vmalloc allocator is context-less so no need to set | |
790 | * alloc_ctxs array. | |
791 | */ | |
792 | ||
793 | dprintk(dev, 1, "%s, count=%d, size=%ld\n", __func__, | |
794 | *nbuffers, size); | |
6bb2790f | 795 | |
1e6dd65e MCC |
796 | return 0; |
797 | } | |
798 | ||
e007a325 | 799 | static int buffer_prepare(struct vb2_buffer *vb) |
1e6dd65e | 800 | { |
e007a325 | 801 | struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue); |
543323bc | 802 | struct vivi_buffer *buf = container_of(vb, struct vivi_buffer, vb); |
e007a325 | 803 | unsigned long size; |
1e6dd65e | 804 | |
e007a325 | 805 | dprintk(dev, 1, "%s, field=%d\n", __func__, vb->v4l2_buf.field); |
1e6dd65e | 806 | |
730947bc | 807 | BUG_ON(NULL == dev->fmt); |
78718e5d | 808 | |
e007a325 PO |
809 | /* |
810 | * Theses properties only change when queue is idle, see s_fmt. | |
811 | * The below checks should not be performed here, on each | |
812 | * buffer_prepare (i.e. on each qbuf). Most of the code in this function | |
813 | * should thus be moved to buffer_init and s_fmt. | |
814 | */ | |
730947bc HV |
815 | if (dev->width < 48 || dev->width > MAX_WIDTH || |
816 | dev->height < 32 || dev->height > MAX_HEIGHT) | |
1e6dd65e | 817 | return -EINVAL; |
78718e5d | 818 | |
3d51dca2 | 819 | size = dev->width * dev->height * dev->pixelsize; |
e007a325 PO |
820 | if (vb2_plane_size(vb, 0) < size) { |
821 | dprintk(dev, 1, "%s data will not fit into plane (%lu < %lu)\n", | |
822 | __func__, vb2_plane_size(vb, 0), size); | |
1e6dd65e | 823 | return -EINVAL; |
e007a325 PO |
824 | } |
825 | ||
826 | vb2_set_plane_payload(&buf->vb, 0, size); | |
1e6dd65e | 827 | |
e007a325 | 828 | buf->fmt = dev->fmt; |
1e6dd65e | 829 | |
730947bc HV |
830 | precalculate_bars(dev); |
831 | precalculate_line(dev); | |
c285addb | 832 | |
e007a325 PO |
833 | return 0; |
834 | } | |
1e6dd65e | 835 | |
e007a325 | 836 | static void buffer_queue(struct vb2_buffer *vb) |
1e6dd65e | 837 | { |
e007a325 | 838 | struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue); |
730947bc | 839 | struct vivi_buffer *buf = container_of(vb, struct vivi_buffer, vb); |
78718e5d | 840 | struct vivi_dmaqueue *vidq = &dev->vidq; |
e007a325 | 841 | unsigned long flags = 0; |
78718e5d | 842 | |
7e28adb2 | 843 | dprintk(dev, 1, "%s\n", __func__); |
78718e5d | 844 | |
e007a325 PO |
845 | spin_lock_irqsave(&dev->slock, flags); |
846 | list_add_tail(&buf->list, &vidq->active); | |
847 | spin_unlock_irqrestore(&dev->slock, flags); | |
1e6dd65e MCC |
848 | } |
849 | ||
bd323e28 | 850 | static int start_streaming(struct vb2_queue *vq, unsigned int count) |
1e6dd65e | 851 | { |
e007a325 PO |
852 | struct vivi_dev *dev = vb2_get_drv_priv(vq); |
853 | dprintk(dev, 1, "%s\n", __func__); | |
854 | return vivi_start_generating(dev); | |
855 | } | |
1e6dd65e | 856 | |
e007a325 PO |
857 | /* abort streaming and wait for last buffer */ |
858 | static int stop_streaming(struct vb2_queue *vq) | |
859 | { | |
860 | struct vivi_dev *dev = vb2_get_drv_priv(vq); | |
7e28adb2 | 861 | dprintk(dev, 1, "%s\n", __func__); |
e007a325 PO |
862 | vivi_stop_generating(dev); |
863 | return 0; | |
864 | } | |
865 | ||
866 | static void vivi_lock(struct vb2_queue *vq) | |
867 | { | |
868 | struct vivi_dev *dev = vb2_get_drv_priv(vq); | |
869 | mutex_lock(&dev->mutex); | |
870 | } | |
1e6dd65e | 871 | |
e007a325 PO |
872 | static void vivi_unlock(struct vb2_queue *vq) |
873 | { | |
874 | struct vivi_dev *dev = vb2_get_drv_priv(vq); | |
875 | mutex_unlock(&dev->mutex); | |
1e6dd65e MCC |
876 | } |
877 | ||
e007a325 PO |
878 | |
879 | static struct vb2_ops vivi_video_qops = { | |
880 | .queue_setup = queue_setup, | |
e007a325 | 881 | .buf_prepare = buffer_prepare, |
e007a325 PO |
882 | .buf_queue = buffer_queue, |
883 | .start_streaming = start_streaming, | |
884 | .stop_streaming = stop_streaming, | |
885 | .wait_prepare = vivi_unlock, | |
886 | .wait_finish = vivi_lock, | |
1e6dd65e MCC |
887 | }; |
888 | ||
c820cc45 MCC |
889 | /* ------------------------------------------------------------------ |
890 | IOCTL vidioc handling | |
891 | ------------------------------------------------------------------*/ | |
543323bc | 892 | static int vidioc_querycap(struct file *file, void *priv, |
c820cc45 MCC |
893 | struct v4l2_capability *cap) |
894 | { | |
730947bc | 895 | struct vivi_dev *dev = video_drvdata(file); |
5ab6c9af | 896 | |
c820cc45 MCC |
897 | strcpy(cap->driver, "vivi"); |
898 | strcpy(cap->card, "vivi"); | |
5ab6c9af | 899 | strlcpy(cap->bus_info, dev->v4l2_dev.name, sizeof(cap->bus_info)); |
23268ae5 HV |
900 | cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING | |
901 | V4L2_CAP_READWRITE; | |
902 | cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; | |
c820cc45 MCC |
903 | return 0; |
904 | } | |
905 | ||
78b526a4 | 906 | static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, |
c820cc45 MCC |
907 | struct v4l2_fmtdesc *f) |
908 | { | |
d891f475 MD |
909 | struct vivi_fmt *fmt; |
910 | ||
911 | if (f->index >= ARRAY_SIZE(formats)) | |
c820cc45 MCC |
912 | return -EINVAL; |
913 | ||
d891f475 MD |
914 | fmt = &formats[f->index]; |
915 | ||
916 | strlcpy(f->description, fmt->name, sizeof(f->description)); | |
917 | f->pixelformat = fmt->fourcc; | |
c820cc45 MCC |
918 | return 0; |
919 | } | |
920 | ||
78b526a4 | 921 | static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, |
c820cc45 MCC |
922 | struct v4l2_format *f) |
923 | { | |
730947bc | 924 | struct vivi_dev *dev = video_drvdata(file); |
c820cc45 | 925 | |
730947bc HV |
926 | f->fmt.pix.width = dev->width; |
927 | f->fmt.pix.height = dev->height; | |
e007a325 | 928 | f->fmt.pix.field = dev->field; |
730947bc | 929 | f->fmt.pix.pixelformat = dev->fmt->fourcc; |
c820cc45 | 930 | f->fmt.pix.bytesperline = |
730947bc | 931 | (f->fmt.pix.width * dev->fmt->depth) >> 3; |
c820cc45 MCC |
932 | f->fmt.pix.sizeimage = |
933 | f->fmt.pix.height * f->fmt.pix.bytesperline; | |
8c79eece HV |
934 | if (dev->fmt->fourcc == V4L2_PIX_FMT_YUYV || |
935 | dev->fmt->fourcc == V4L2_PIX_FMT_UYVY) | |
936 | f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; | |
937 | else | |
938 | f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; | |
730947bc | 939 | return 0; |
c820cc45 MCC |
940 | } |
941 | ||
78b526a4 | 942 | static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, |
1e6dd65e MCC |
943 | struct v4l2_format *f) |
944 | { | |
730947bc | 945 | struct vivi_dev *dev = video_drvdata(file); |
1e6dd65e MCC |
946 | struct vivi_fmt *fmt; |
947 | enum v4l2_field field; | |
1e6dd65e | 948 | |
d891f475 MD |
949 | fmt = get_format(f); |
950 | if (!fmt) { | |
951 | dprintk(dev, 1, "Fourcc format (0x%08x) invalid.\n", | |
952 | f->fmt.pix.pixelformat); | |
1e6dd65e MCC |
953 | return -EINVAL; |
954 | } | |
1e6dd65e MCC |
955 | |
956 | field = f->fmt.pix.field; | |
957 | ||
958 | if (field == V4L2_FIELD_ANY) { | |
543323bc | 959 | field = V4L2_FIELD_INTERLACED; |
1e6dd65e | 960 | } else if (V4L2_FIELD_INTERLACED != field) { |
6c2f9901 | 961 | dprintk(dev, 1, "Field type invalid.\n"); |
1e6dd65e MCC |
962 | return -EINVAL; |
963 | } | |
964 | ||
1e6dd65e | 965 | f->fmt.pix.field = field; |
730947bc HV |
966 | v4l_bound_align_image(&f->fmt.pix.width, 48, MAX_WIDTH, 2, |
967 | &f->fmt.pix.height, 32, MAX_HEIGHT, 0, 0); | |
1e6dd65e MCC |
968 | f->fmt.pix.bytesperline = |
969 | (f->fmt.pix.width * fmt->depth) >> 3; | |
970 | f->fmt.pix.sizeimage = | |
971 | f->fmt.pix.height * f->fmt.pix.bytesperline; | |
8c79eece HV |
972 | if (fmt->fourcc == V4L2_PIX_FMT_YUYV || |
973 | fmt->fourcc == V4L2_PIX_FMT_UYVY) | |
974 | f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; | |
975 | else | |
976 | f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; | |
1e6dd65e MCC |
977 | return 0; |
978 | } | |
979 | ||
e164b58a MCC |
980 | static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, |
981 | struct v4l2_format *f) | |
982 | { | |
730947bc | 983 | struct vivi_dev *dev = video_drvdata(file); |
e007a325 | 984 | struct vb2_queue *q = &dev->vb_vidq; |
e164b58a | 985 | |
730947bc | 986 | int ret = vidioc_try_fmt_vid_cap(file, priv, f); |
e164b58a MCC |
987 | if (ret < 0) |
988 | return ret; | |
989 | ||
f2ba5a0b | 990 | if (vb2_is_busy(q)) { |
730947bc | 991 | dprintk(dev, 1, "%s device busy\n", __func__); |
e007a325 | 992 | return -EBUSY; |
e164b58a MCC |
993 | } |
994 | ||
730947bc | 995 | dev->fmt = get_format(f); |
3d51dca2 | 996 | dev->pixelsize = dev->fmt->depth / 8; |
730947bc HV |
997 | dev->width = f->fmt.pix.width; |
998 | dev->height = f->fmt.pix.height; | |
e007a325 PO |
999 | dev->field = f->fmt.pix.field; |
1000 | ||
1001 | return 0; | |
1e6dd65e MCC |
1002 | } |
1003 | ||
c820cc45 | 1004 | /* only one input in this sample driver */ |
543323bc | 1005 | static int vidioc_enum_input(struct file *file, void *priv, |
c820cc45 MCC |
1006 | struct v4l2_input *inp) |
1007 | { | |
e164b58a | 1008 | if (inp->index >= NUM_INPUTS) |
c820cc45 | 1009 | return -EINVAL; |
1e6dd65e | 1010 | |
c820cc45 | 1011 | inp->type = V4L2_INPUT_TYPE_CAMERA; |
e164b58a | 1012 | sprintf(inp->name, "Camera %u", inp->index); |
730947bc | 1013 | return 0; |
c820cc45 | 1014 | } |
1e6dd65e | 1015 | |
543323bc | 1016 | static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) |
c820cc45 | 1017 | { |
730947bc | 1018 | struct vivi_dev *dev = video_drvdata(file); |
e164b58a MCC |
1019 | |
1020 | *i = dev->input; | |
730947bc | 1021 | return 0; |
c820cc45 | 1022 | } |
730947bc | 1023 | |
543323bc | 1024 | static int vidioc_s_input(struct file *file, void *priv, unsigned int i) |
c820cc45 | 1025 | { |
730947bc | 1026 | struct vivi_dev *dev = video_drvdata(file); |
e164b58a MCC |
1027 | |
1028 | if (i >= NUM_INPUTS) | |
c820cc45 | 1029 | return -EINVAL; |
1e6dd65e | 1030 | |
c7a52f8d HV |
1031 | if (i == dev->input) |
1032 | return 0; | |
1033 | ||
e164b58a | 1034 | dev->input = i; |
730947bc HV |
1035 | precalculate_bars(dev); |
1036 | precalculate_line(dev); | |
1037 | return 0; | |
c820cc45 | 1038 | } |
1e6dd65e | 1039 | |
730947bc | 1040 | /* --- controls ---------------------------------------------- */ |
1e6dd65e | 1041 | |
a1c894fb HV |
1042 | static int vivi_g_volatile_ctrl(struct v4l2_ctrl *ctrl) |
1043 | { | |
1044 | struct vivi_dev *dev = container_of(ctrl->handler, struct vivi_dev, ctrl_handler); | |
1045 | ||
1046 | if (ctrl == dev->autogain) | |
1047 | dev->gain->val = jiffies & 0xff; | |
1048 | return 0; | |
1049 | } | |
1050 | ||
7e996afa | 1051 | static int vivi_s_ctrl(struct v4l2_ctrl *ctrl) |
c820cc45 | 1052 | { |
7e996afa | 1053 | struct vivi_dev *dev = container_of(ctrl->handler, struct vivi_dev, ctrl_handler); |
1e6dd65e | 1054 | |
7088f4df HV |
1055 | switch (ctrl->id) { |
1056 | case V4L2_CID_ALPHA_COMPONENT: | |
1057 | dev->alpha_component = ctrl->val; | |
1058 | break; | |
1059 | default: | |
1060 | if (ctrl == dev->button) | |
1061 | dev->button_pressed = 30; | |
1062 | break; | |
1063 | } | |
7e996afa | 1064 | return 0; |
1e6dd65e MCC |
1065 | } |
1066 | ||
1067 | /* ------------------------------------------------------------------ | |
1068 | File operations for the device | |
1069 | ------------------------------------------------------------------*/ | |
1070 | ||
7e996afa | 1071 | static const struct v4l2_ctrl_ops vivi_ctrl_ops = { |
a1c894fb | 1072 | .g_volatile_ctrl = vivi_g_volatile_ctrl, |
7e996afa HV |
1073 | .s_ctrl = vivi_s_ctrl, |
1074 | }; | |
1075 | ||
1076 | #define VIVI_CID_CUSTOM_BASE (V4L2_CID_USER_BASE | 0xf000) | |
1077 | ||
1078 | static const struct v4l2_ctrl_config vivi_ctrl_button = { | |
1079 | .ops = &vivi_ctrl_ops, | |
1080 | .id = VIVI_CID_CUSTOM_BASE + 0, | |
1081 | .name = "Button", | |
1082 | .type = V4L2_CTRL_TYPE_BUTTON, | |
1083 | }; | |
1084 | ||
1085 | static const struct v4l2_ctrl_config vivi_ctrl_boolean = { | |
1086 | .ops = &vivi_ctrl_ops, | |
1087 | .id = VIVI_CID_CUSTOM_BASE + 1, | |
1088 | .name = "Boolean", | |
1089 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
1090 | .min = 0, | |
1091 | .max = 1, | |
1092 | .step = 1, | |
1093 | .def = 1, | |
1094 | }; | |
1095 | ||
1096 | static const struct v4l2_ctrl_config vivi_ctrl_int32 = { | |
1097 | .ops = &vivi_ctrl_ops, | |
1098 | .id = VIVI_CID_CUSTOM_BASE + 2, | |
1099 | .name = "Integer 32 Bits", | |
1100 | .type = V4L2_CTRL_TYPE_INTEGER, | |
5b283029 HV |
1101 | .min = 0x80000000, |
1102 | .max = 0x7fffffff, | |
7e996afa HV |
1103 | .step = 1, |
1104 | }; | |
1105 | ||
1106 | static const struct v4l2_ctrl_config vivi_ctrl_int64 = { | |
1107 | .ops = &vivi_ctrl_ops, | |
1108 | .id = VIVI_CID_CUSTOM_BASE + 3, | |
1109 | .name = "Integer 64 Bits", | |
1110 | .type = V4L2_CTRL_TYPE_INTEGER64, | |
1111 | }; | |
1112 | ||
1113 | static const char * const vivi_ctrl_menu_strings[] = { | |
1114 | "Menu Item 0 (Skipped)", | |
1115 | "Menu Item 1", | |
1116 | "Menu Item 2 (Skipped)", | |
1117 | "Menu Item 3", | |
1118 | "Menu Item 4", | |
1119 | "Menu Item 5 (Skipped)", | |
1120 | NULL, | |
1121 | }; | |
1122 | ||
1123 | static const struct v4l2_ctrl_config vivi_ctrl_menu = { | |
1124 | .ops = &vivi_ctrl_ops, | |
1125 | .id = VIVI_CID_CUSTOM_BASE + 4, | |
1126 | .name = "Menu", | |
1127 | .type = V4L2_CTRL_TYPE_MENU, | |
1128 | .min = 1, | |
1129 | .max = 4, | |
1130 | .def = 3, | |
1131 | .menu_skip_mask = 0x04, | |
1132 | .qmenu = vivi_ctrl_menu_strings, | |
1133 | }; | |
1134 | ||
1135 | static const struct v4l2_ctrl_config vivi_ctrl_string = { | |
1136 | .ops = &vivi_ctrl_ops, | |
1137 | .id = VIVI_CID_CUSTOM_BASE + 5, | |
1138 | .name = "String", | |
1139 | .type = V4L2_CTRL_TYPE_STRING, | |
1140 | .min = 2, | |
1141 | .max = 4, | |
1142 | .step = 1, | |
1143 | }; | |
1144 | ||
b6d17a56 HV |
1145 | static const struct v4l2_ctrl_config vivi_ctrl_bitmask = { |
1146 | .ops = &vivi_ctrl_ops, | |
1147 | .id = VIVI_CID_CUSTOM_BASE + 6, | |
1148 | .name = "Bitmask", | |
1149 | .type = V4L2_CTRL_TYPE_BITMASK, | |
1150 | .def = 0x80002000, | |
1151 | .min = 0, | |
1152 | .max = 0x80402010, | |
1153 | .step = 0, | |
1154 | }; | |
1155 | ||
c520331a SA |
1156 | static const s64 vivi_ctrl_int_menu_values[] = { |
1157 | 1, 1, 2, 3, 5, 8, 13, 21, 42, | |
1158 | }; | |
1159 | ||
1160 | static const struct v4l2_ctrl_config vivi_ctrl_int_menu = { | |
1161 | .ops = &vivi_ctrl_ops, | |
1162 | .id = VIVI_CID_CUSTOM_BASE + 7, | |
1163 | .name = "Integer menu", | |
1164 | .type = V4L2_CTRL_TYPE_INTEGER_MENU, | |
1165 | .min = 1, | |
1166 | .max = 8, | |
1167 | .def = 4, | |
1168 | .menu_skip_mask = 0x02, | |
1169 | .qmenu_int = vivi_ctrl_int_menu_values, | |
1170 | }; | |
1171 | ||
bec43661 | 1172 | static const struct v4l2_file_operations vivi_fops = { |
1e6dd65e | 1173 | .owner = THIS_MODULE, |
c7a52f8d | 1174 | .open = v4l2_fh_open, |
f2ba5a0b HV |
1175 | .release = vb2_fop_release, |
1176 | .read = vb2_fop_read, | |
1177 | .poll = vb2_fop_poll, | |
fedc6c81 | 1178 | .unlocked_ioctl = video_ioctl2, /* V4L2 ioctl handler */ |
f2ba5a0b | 1179 | .mmap = vb2_fop_mmap, |
1e6dd65e MCC |
1180 | }; |
1181 | ||
a399810c | 1182 | static const struct v4l2_ioctl_ops vivi_ioctl_ops = { |
c820cc45 | 1183 | .vidioc_querycap = vidioc_querycap, |
78b526a4 HV |
1184 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, |
1185 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, | |
1186 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, | |
1187 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, | |
f2ba5a0b | 1188 | .vidioc_reqbufs = vb2_ioctl_reqbufs, |
2e90c6c3 HV |
1189 | .vidioc_create_bufs = vb2_ioctl_create_bufs, |
1190 | .vidioc_prepare_buf = vb2_ioctl_prepare_buf, | |
f2ba5a0b HV |
1191 | .vidioc_querybuf = vb2_ioctl_querybuf, |
1192 | .vidioc_qbuf = vb2_ioctl_qbuf, | |
1193 | .vidioc_dqbuf = vb2_ioctl_dqbuf, | |
c820cc45 MCC |
1194 | .vidioc_enum_input = vidioc_enum_input, |
1195 | .vidioc_g_input = vidioc_g_input, | |
1196 | .vidioc_s_input = vidioc_s_input, | |
f2ba5a0b HV |
1197 | .vidioc_streamon = vb2_ioctl_streamon, |
1198 | .vidioc_streamoff = vb2_ioctl_streamoff, | |
e2ecb257 | 1199 | .vidioc_log_status = v4l2_ctrl_log_status, |
6d6604fa | 1200 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, |
c7a52f8d | 1201 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, |
a399810c HV |
1202 | }; |
1203 | ||
1204 | static struct video_device vivi_template = { | |
1205 | .name = "vivi", | |
a399810c HV |
1206 | .fops = &vivi_fops, |
1207 | .ioctl_ops = &vivi_ioctl_ops, | |
70bd97ae | 1208 | .release = video_device_release_empty, |
1e6dd65e | 1209 | }; |
5ab6c9af | 1210 | |
c820cc45 | 1211 | /* ----------------------------------------------------------------- |
1e6dd65e MCC |
1212 | Initialization and module stuff |
1213 | ------------------------------------------------------------------*/ | |
1214 | ||
5ab6c9af HV |
1215 | static int vivi_release(void) |
1216 | { | |
1217 | struct vivi_dev *dev; | |
1218 | struct list_head *list; | |
980d4f17 | 1219 | |
5ab6c9af HV |
1220 | while (!list_empty(&vivi_devlist)) { |
1221 | list = vivi_devlist.next; | |
1222 | list_del(list); | |
1223 | dev = list_entry(list, struct vivi_dev, vivi_devlist); | |
1224 | ||
38c7c036 | 1225 | v4l2_info(&dev->v4l2_dev, "unregistering %s\n", |
70bd97ae HV |
1226 | video_device_node_name(&dev->vdev)); |
1227 | video_unregister_device(&dev->vdev); | |
5ab6c9af | 1228 | v4l2_device_unregister(&dev->v4l2_dev); |
7e996afa | 1229 | v4l2_ctrl_handler_free(&dev->ctrl_handler); |
5ab6c9af HV |
1230 | kfree(dev); |
1231 | } | |
1232 | ||
1233 | return 0; | |
1234 | } | |
1235 | ||
c41ee24b | 1236 | static int __init vivi_create_instance(int inst) |
1e6dd65e | 1237 | { |
1e6dd65e | 1238 | struct vivi_dev *dev; |
f905c442 | 1239 | struct video_device *vfd; |
7e996afa | 1240 | struct v4l2_ctrl_handler *hdl; |
e007a325 | 1241 | struct vb2_queue *q; |
730947bc | 1242 | int ret; |
1e6dd65e | 1243 | |
5ab6c9af HV |
1244 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
1245 | if (!dev) | |
1246 | return -ENOMEM; | |
980d4f17 | 1247 | |
5ab6c9af | 1248 | snprintf(dev->v4l2_dev.name, sizeof(dev->v4l2_dev.name), |
c41ee24b | 1249 | "%s-%03d", VIVI_MODULE_NAME, inst); |
5ab6c9af HV |
1250 | ret = v4l2_device_register(NULL, &dev->v4l2_dev); |
1251 | if (ret) | |
1252 | goto free_dev; | |
1e6dd65e | 1253 | |
730947bc HV |
1254 | dev->fmt = &formats[0]; |
1255 | dev->width = 640; | |
1256 | dev->height = 480; | |
3d51dca2 | 1257 | dev->pixelsize = dev->fmt->depth / 8; |
7e996afa HV |
1258 | hdl = &dev->ctrl_handler; |
1259 | v4l2_ctrl_handler_init(hdl, 11); | |
1260 | dev->volume = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops, | |
1261 | V4L2_CID_AUDIO_VOLUME, 0, 255, 1, 200); | |
1262 | dev->brightness = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops, | |
1263 | V4L2_CID_BRIGHTNESS, 0, 255, 1, 127); | |
1264 | dev->contrast = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops, | |
1265 | V4L2_CID_CONTRAST, 0, 255, 1, 16); | |
1266 | dev->saturation = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops, | |
1267 | V4L2_CID_SATURATION, 0, 255, 1, 127); | |
1268 | dev->hue = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops, | |
1269 | V4L2_CID_HUE, -128, 127, 1, 0); | |
a1c894fb HV |
1270 | dev->autogain = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops, |
1271 | V4L2_CID_AUTOGAIN, 0, 1, 1, 1); | |
1272 | dev->gain = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops, | |
1273 | V4L2_CID_GAIN, 0, 255, 1, 100); | |
7088f4df HV |
1274 | dev->alpha = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops, |
1275 | V4L2_CID_ALPHA_COMPONENT, 0, 255, 1, 0); | |
7e996afa HV |
1276 | dev->button = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_button, NULL); |
1277 | dev->int32 = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_int32, NULL); | |
1278 | dev->int64 = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_int64, NULL); | |
1279 | dev->boolean = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_boolean, NULL); | |
1280 | dev->menu = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_menu, NULL); | |
1281 | dev->string = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_string, NULL); | |
b6d17a56 | 1282 | dev->bitmask = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_bitmask, NULL); |
c520331a | 1283 | dev->int_menu = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_int_menu, NULL); |
7e996afa HV |
1284 | if (hdl->error) { |
1285 | ret = hdl->error; | |
1286 | goto unreg_dev; | |
1287 | } | |
a1c894fb | 1288 | v4l2_ctrl_auto_cluster(2, &dev->autogain, 0, true); |
7e996afa | 1289 | dev->v4l2_dev.ctrl_handler = hdl; |
730947bc | 1290 | |
fedc6c81 HV |
1291 | /* initialize locks */ |
1292 | spin_lock_init(&dev->slock); | |
fedc6c81 | 1293 | |
e007a325 PO |
1294 | /* initialize queue */ |
1295 | q = &dev->vb_vidq; | |
1296 | memset(q, 0, sizeof(dev->vb_vidq)); | |
1297 | q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1298 | q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; | |
1299 | q->drv_priv = dev; | |
1300 | q->buf_struct_size = sizeof(struct vivi_buffer); | |
1301 | q->ops = &vivi_video_qops; | |
1302 | q->mem_ops = &vb2_vmalloc_memops; | |
1303 | ||
1304 | vb2_queue_init(q); | |
1305 | ||
1306 | mutex_init(&dev->mutex); | |
730947bc | 1307 | |
5ab6c9af HV |
1308 | /* init video dma queues */ |
1309 | INIT_LIST_HEAD(&dev->vidq.active); | |
1310 | init_waitqueue_head(&dev->vidq.wq); | |
1e6dd65e | 1311 | |
70bd97ae | 1312 | vfd = &dev->vdev; |
5ab6c9af | 1313 | *vfd = vivi_template; |
c285addb | 1314 | vfd->debug = debug; |
730947bc | 1315 | vfd->v4l2_dev = &dev->v4l2_dev; |
f2ba5a0b | 1316 | vfd->queue = q; |
b1a873a3 | 1317 | set_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags); |
e007a325 PO |
1318 | |
1319 | /* | |
1320 | * Provide a mutex to v4l2 core. It will be used to protect | |
1321 | * all fops and v4l2 ioctls. | |
1322 | */ | |
fedc6c81 | 1323 | vfd->lock = &dev->mutex; |
70bd97ae | 1324 | video_set_drvdata(vfd, dev); |
55712ff7 | 1325 | |
5ab6c9af HV |
1326 | ret = video_register_device(vfd, VFL_TYPE_GRABBER, video_nr); |
1327 | if (ret < 0) | |
70bd97ae | 1328 | goto unreg_dev; |
980d4f17 | 1329 | |
5ab6c9af HV |
1330 | /* Now that everything is fine, let's add it to device list */ |
1331 | list_add_tail(&dev->vivi_devlist, &vivi_devlist); | |
980d4f17 | 1332 | |
7de0b873 | 1333 | if (video_nr != -1) |
5ab6c9af | 1334 | video_nr++; |
f905c442 | 1335 | |
38c7c036 LP |
1336 | v4l2_info(&dev->v4l2_dev, "V4L2 device registered as %s\n", |
1337 | video_device_node_name(vfd)); | |
5ab6c9af HV |
1338 | return 0; |
1339 | ||
5ab6c9af | 1340 | unreg_dev: |
7e996afa | 1341 | v4l2_ctrl_handler_free(hdl); |
5ab6c9af HV |
1342 | v4l2_device_unregister(&dev->v4l2_dev); |
1343 | free_dev: | |
1344 | kfree(dev); | |
1345 | return ret; | |
1346 | } | |
f905c442 | 1347 | |
5ab6c9af HV |
1348 | /* This routine allocates from 1 to n_devs virtual drivers. |
1349 | ||
1350 | The real maximum number of virtual drivers will depend on how many drivers | |
1351 | will succeed. This is limited to the maximum number of devices that | |
1352 | videodev supports, which is equal to VIDEO_NUM_DEVICES. | |
1353 | */ | |
1354 | static int __init vivi_init(void) | |
1355 | { | |
730947bc | 1356 | const struct font_desc *font = find_font("VGA8x16"); |
9185cbfc | 1357 | int ret = 0, i; |
5ab6c9af | 1358 | |
730947bc HV |
1359 | if (font == NULL) { |
1360 | printk(KERN_ERR "vivi: could not find font\n"); | |
1361 | return -ENODEV; | |
1362 | } | |
1363 | font8x16 = font->data; | |
1364 | ||
5ab6c9af HV |
1365 | if (n_devs <= 0) |
1366 | n_devs = 1; | |
1367 | ||
1368 | for (i = 0; i < n_devs; i++) { | |
1369 | ret = vivi_create_instance(i); | |
1370 | if (ret) { | |
1371 | /* If some instantiations succeeded, keep driver */ | |
1372 | if (i) | |
1373 | ret = 0; | |
1374 | break; | |
1375 | } | |
55712ff7 | 1376 | } |
f905c442 | 1377 | |
55712ff7 | 1378 | if (ret < 0) { |
730947bc | 1379 | printk(KERN_ERR "vivi: error %d while loading driver\n", ret); |
5ab6c9af HV |
1380 | return ret; |
1381 | } | |
1382 | ||
1383 | printk(KERN_INFO "Video Technology Magazine Virtual Video " | |
1990d50b MCC |
1384 | "Capture Board ver %s successfully loaded.\n", |
1385 | VIVI_VERSION); | |
980d4f17 | 1386 | |
5ab6c9af HV |
1387 | /* n_devs will reflect the actual number of allocated devices */ |
1388 | n_devs = i; | |
980d4f17 | 1389 | |
1e6dd65e MCC |
1390 | return ret; |
1391 | } | |
1392 | ||
1393 | static void __exit vivi_exit(void) | |
1394 | { | |
55712ff7 | 1395 | vivi_release(); |
1e6dd65e MCC |
1396 | } |
1397 | ||
1398 | module_init(vivi_init); | |
1399 | module_exit(vivi_exit); |