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; |
1e6dd65e | 191 | |
730947bc | 192 | /* controls */ |
7e996afa HV |
193 | struct v4l2_ctrl *brightness; |
194 | struct v4l2_ctrl *contrast; | |
195 | struct v4l2_ctrl *saturation; | |
196 | struct v4l2_ctrl *hue; | |
a1c894fb HV |
197 | struct { |
198 | /* autogain/gain cluster */ | |
199 | struct v4l2_ctrl *autogain; | |
200 | struct v4l2_ctrl *gain; | |
201 | }; | |
7e996afa | 202 | struct v4l2_ctrl *volume; |
7088f4df | 203 | struct v4l2_ctrl *alpha; |
7e996afa HV |
204 | struct v4l2_ctrl *button; |
205 | struct v4l2_ctrl *boolean; | |
206 | struct v4l2_ctrl *int32; | |
207 | struct v4l2_ctrl *int64; | |
208 | struct v4l2_ctrl *menu; | |
209 | struct v4l2_ctrl *string; | |
b6d17a56 | 210 | struct v4l2_ctrl *bitmask; |
c520331a | 211 | struct v4l2_ctrl *int_menu; |
730947bc | 212 | |
55862ac9 | 213 | spinlock_t slock; |
aa9dbac4 | 214 | struct mutex mutex; |
1e6dd65e | 215 | |
1e6dd65e | 216 | /* various device info */ |
f905c442 | 217 | struct video_device *vfd; |
1e6dd65e MCC |
218 | |
219 | struct vivi_dmaqueue vidq; | |
220 | ||
221 | /* Several counters */ | |
730947bc | 222 | unsigned ms; |
dfd8c04e | 223 | unsigned long jiffies; |
7e996afa | 224 | unsigned button_pressed; |
025341d4 MCC |
225 | |
226 | int mv_count; /* Controls bars movement */ | |
e164b58a MCC |
227 | |
228 | /* Input Number */ | |
229 | int input; | |
c41ee24b | 230 | |
1e6dd65e MCC |
231 | /* video capture */ |
232 | struct vivi_fmt *fmt; | |
543323bc | 233 | unsigned int width, height; |
e007a325 PO |
234 | struct vb2_queue vb_vidq; |
235 | enum v4l2_field field; | |
236 | unsigned int field_count; | |
1e6dd65e | 237 | |
3d51dca2 HV |
238 | u8 bars[9][3]; |
239 | u8 line[MAX_WIDTH * 8]; | |
240 | unsigned int pixelsize; | |
7088f4df | 241 | u8 alpha_component; |
1e6dd65e MCC |
242 | }; |
243 | ||
244 | /* ------------------------------------------------------------------ | |
245 | DMA and thread functions | |
246 | ------------------------------------------------------------------*/ | |
247 | ||
248 | /* Bars and Colors should match positions */ | |
249 | ||
250 | enum colors { | |
251 | WHITE, | |
730947bc | 252 | AMBER, |
1e6dd65e MCC |
253 | CYAN, |
254 | GREEN, | |
255 | MAGENTA, | |
256 | RED, | |
543323bc MCC |
257 | BLUE, |
258 | BLACK, | |
730947bc | 259 | TEXT_BLACK, |
1e6dd65e MCC |
260 | }; |
261 | ||
730947bc | 262 | /* R G B */ |
e164b58a | 263 | #define COLOR_WHITE {204, 204, 204} |
730947bc HV |
264 | #define COLOR_AMBER {208, 208, 0} |
265 | #define COLOR_CYAN { 0, 206, 206} | |
e164b58a MCC |
266 | #define COLOR_GREEN { 0, 239, 0} |
267 | #define COLOR_MAGENTA {239, 0, 239} | |
268 | #define COLOR_RED {205, 0, 0} | |
269 | #define COLOR_BLUE { 0, 0, 255} | |
270 | #define COLOR_BLACK { 0, 0, 0} | |
271 | ||
272 | struct bar_std { | |
730947bc | 273 | u8 bar[9][3]; |
e164b58a MCC |
274 | }; |
275 | ||
276 | /* Maximum number of bars are 10 - otherwise, the input print code | |
277 | should be modified */ | |
278 | static struct bar_std bars[] = { | |
279 | { /* Standard ITU-R color bar sequence */ | |
730947bc HV |
280 | { COLOR_WHITE, COLOR_AMBER, COLOR_CYAN, COLOR_GREEN, |
281 | COLOR_MAGENTA, COLOR_RED, COLOR_BLUE, COLOR_BLACK, COLOR_BLACK } | |
e164b58a | 282 | }, { |
730947bc HV |
283 | { COLOR_WHITE, COLOR_AMBER, COLOR_BLACK, COLOR_WHITE, |
284 | COLOR_AMBER, COLOR_BLACK, COLOR_WHITE, COLOR_AMBER, COLOR_BLACK } | |
e164b58a | 285 | }, { |
730947bc HV |
286 | { COLOR_WHITE, COLOR_CYAN, COLOR_BLACK, COLOR_WHITE, |
287 | COLOR_CYAN, COLOR_BLACK, COLOR_WHITE, COLOR_CYAN, COLOR_BLACK } | |
e164b58a | 288 | }, { |
730947bc HV |
289 | { COLOR_WHITE, COLOR_GREEN, COLOR_BLACK, COLOR_WHITE, |
290 | COLOR_GREEN, COLOR_BLACK, COLOR_WHITE, COLOR_GREEN, COLOR_BLACK } | |
e164b58a | 291 | }, |
1e6dd65e MCC |
292 | }; |
293 | ||
e164b58a MCC |
294 | #define NUM_INPUTS ARRAY_SIZE(bars) |
295 | ||
543323bc MCC |
296 | #define TO_Y(r, g, b) \ |
297 | (((16829 * r + 33039 * g + 6416 * b + 32768) >> 16) + 16) | |
1e6dd65e | 298 | /* RGB to V(Cr) Color transform */ |
543323bc MCC |
299 | #define TO_V(r, g, b) \ |
300 | (((28784 * r - 24103 * g - 4681 * b + 32768) >> 16) + 128) | |
1e6dd65e | 301 | /* RGB to U(Cb) Color transform */ |
543323bc MCC |
302 | #define TO_U(r, g, b) \ |
303 | (((-9714 * r - 19070 * g + 28784 * b + 32768) >> 16) + 128) | |
1e6dd65e | 304 | |
c285addb | 305 | /* precalculate color bar values to speed up rendering */ |
730947bc | 306 | static void precalculate_bars(struct vivi_dev *dev) |
c285addb | 307 | { |
730947bc | 308 | u8 r, g, b; |
c285addb MCC |
309 | int k, is_yuv; |
310 | ||
730947bc HV |
311 | for (k = 0; k < 9; k++) { |
312 | r = bars[dev->input].bar[k][0]; | |
313 | g = bars[dev->input].bar[k][1]; | |
314 | b = bars[dev->input].bar[k][2]; | |
c285addb MCC |
315 | is_yuv = 0; |
316 | ||
730947bc | 317 | switch (dev->fmt->fourcc) { |
c285addb MCC |
318 | case V4L2_PIX_FMT_YUYV: |
319 | case V4L2_PIX_FMT_UYVY: | |
3d51dca2 HV |
320 | case V4L2_PIX_FMT_YVYU: |
321 | case V4L2_PIX_FMT_VYUY: | |
c285addb MCC |
322 | is_yuv = 1; |
323 | break; | |
324 | case V4L2_PIX_FMT_RGB565: | |
325 | case V4L2_PIX_FMT_RGB565X: | |
326 | r >>= 3; | |
327 | g >>= 2; | |
328 | b >>= 3; | |
329 | break; | |
330 | case V4L2_PIX_FMT_RGB555: | |
331 | case V4L2_PIX_FMT_RGB555X: | |
332 | r >>= 3; | |
333 | g >>= 3; | |
334 | b >>= 3; | |
335 | break; | |
3d51dca2 HV |
336 | case V4L2_PIX_FMT_RGB24: |
337 | case V4L2_PIX_FMT_BGR24: | |
338 | case V4L2_PIX_FMT_RGB32: | |
339 | case V4L2_PIX_FMT_BGR32: | |
340 | break; | |
c285addb MCC |
341 | } |
342 | ||
343 | if (is_yuv) { | |
730947bc HV |
344 | dev->bars[k][0] = TO_Y(r, g, b); /* Luma */ |
345 | dev->bars[k][1] = TO_U(r, g, b); /* Cb */ | |
346 | dev->bars[k][2] = TO_V(r, g, b); /* Cr */ | |
c285addb | 347 | } else { |
730947bc HV |
348 | dev->bars[k][0] = r; |
349 | dev->bars[k][1] = g; | |
350 | dev->bars[k][2] = b; | |
c285addb MCC |
351 | } |
352 | } | |
c285addb MCC |
353 | } |
354 | ||
e164b58a MCC |
355 | #define TSTAMP_MIN_Y 24 |
356 | #define TSTAMP_MAX_Y (TSTAMP_MIN_Y + 15) | |
357 | #define TSTAMP_INPUT_X 10 | |
358 | #define TSTAMP_MIN_X (54 + TSTAMP_INPUT_X) | |
1e6dd65e | 359 | |
3d51dca2 HV |
360 | /* 'odd' is true for pixels 1, 3, 5, etc. and false for pixels 0, 2, 4, etc. */ |
361 | static void gen_twopix(struct vivi_dev *dev, u8 *buf, int colorpos, bool odd) | |
74d7c5af | 362 | { |
730947bc | 363 | u8 r_y, g_u, b_v; |
7088f4df | 364 | u8 alpha = dev->alpha_component; |
74d7c5af | 365 | int color; |
730947bc | 366 | u8 *p; |
74d7c5af | 367 | |
730947bc HV |
368 | r_y = dev->bars[colorpos][0]; /* R or precalculated Y */ |
369 | g_u = dev->bars[colorpos][1]; /* G or precalculated U */ | |
370 | b_v = dev->bars[colorpos][2]; /* B or precalculated V */ | |
74d7c5af | 371 | |
3d51dca2 | 372 | for (color = 0; color < dev->pixelsize; color++) { |
74d7c5af MD |
373 | p = buf + color; |
374 | ||
730947bc | 375 | switch (dev->fmt->fourcc) { |
d891f475 MD |
376 | case V4L2_PIX_FMT_YUYV: |
377 | switch (color) { | |
378 | case 0: | |
d891f475 MD |
379 | *p = r_y; |
380 | break; | |
381 | case 1: | |
3d51dca2 | 382 | *p = odd ? b_v : g_u; |
d891f475 MD |
383 | break; |
384 | } | |
74d7c5af | 385 | break; |
fca36bab MD |
386 | case V4L2_PIX_FMT_UYVY: |
387 | switch (color) { | |
3d51dca2 HV |
388 | case 0: |
389 | *p = odd ? b_v : g_u; | |
390 | break; | |
fca36bab | 391 | case 1: |
fca36bab MD |
392 | *p = r_y; |
393 | break; | |
3d51dca2 HV |
394 | } |
395 | break; | |
396 | case V4L2_PIX_FMT_YVYU: | |
397 | switch (color) { | |
398 | case 0: | |
399 | *p = r_y; | |
400 | break; | |
401 | case 1: | |
402 | *p = odd ? g_u : b_v; | |
403 | break; | |
404 | } | |
405 | break; | |
406 | case V4L2_PIX_FMT_VYUY: | |
407 | switch (color) { | |
fca36bab | 408 | case 0: |
3d51dca2 | 409 | *p = odd ? g_u : b_v; |
fca36bab | 410 | break; |
3d51dca2 HV |
411 | case 1: |
412 | *p = r_y; | |
fca36bab MD |
413 | break; |
414 | } | |
415 | break; | |
aeadb5d4 MD |
416 | case V4L2_PIX_FMT_RGB565: |
417 | switch (color) { | |
418 | case 0: | |
aeadb5d4 MD |
419 | *p = (g_u << 5) | b_v; |
420 | break; | |
421 | case 1: | |
aeadb5d4 MD |
422 | *p = (r_y << 3) | (g_u >> 3); |
423 | break; | |
424 | } | |
425 | break; | |
426 | case V4L2_PIX_FMT_RGB565X: | |
427 | switch (color) { | |
428 | case 0: | |
aeadb5d4 MD |
429 | *p = (r_y << 3) | (g_u >> 3); |
430 | break; | |
431 | case 1: | |
aeadb5d4 MD |
432 | *p = (g_u << 5) | b_v; |
433 | break; | |
434 | } | |
435 | break; | |
def52393 MD |
436 | case V4L2_PIX_FMT_RGB555: |
437 | switch (color) { | |
438 | case 0: | |
def52393 MD |
439 | *p = (g_u << 5) | b_v; |
440 | break; | |
441 | case 1: | |
7088f4df | 442 | *p = (alpha & 0x80) | (r_y << 2) | (g_u >> 3); |
def52393 MD |
443 | break; |
444 | } | |
445 | break; | |
446 | case V4L2_PIX_FMT_RGB555X: | |
447 | switch (color) { | |
448 | case 0: | |
7088f4df | 449 | *p = (alpha & 0x80) | (r_y << 2) | (g_u >> 3); |
def52393 MD |
450 | break; |
451 | case 1: | |
def52393 MD |
452 | *p = (g_u << 5) | b_v; |
453 | break; | |
454 | } | |
455 | break; | |
3d51dca2 HV |
456 | case V4L2_PIX_FMT_RGB24: |
457 | switch (color) { | |
458 | case 0: | |
459 | *p = r_y; | |
460 | break; | |
461 | case 1: | |
462 | *p = g_u; | |
463 | break; | |
464 | case 2: | |
465 | *p = b_v; | |
466 | break; | |
467 | } | |
468 | break; | |
469 | case V4L2_PIX_FMT_BGR24: | |
470 | switch (color) { | |
471 | case 0: | |
472 | *p = b_v; | |
473 | break; | |
474 | case 1: | |
475 | *p = g_u; | |
476 | break; | |
477 | case 2: | |
478 | *p = r_y; | |
479 | break; | |
480 | } | |
481 | break; | |
482 | case V4L2_PIX_FMT_RGB32: | |
483 | switch (color) { | |
484 | case 0: | |
7088f4df | 485 | *p = alpha; |
3d51dca2 HV |
486 | break; |
487 | case 1: | |
488 | *p = r_y; | |
489 | break; | |
490 | case 2: | |
491 | *p = g_u; | |
492 | break; | |
493 | case 3: | |
494 | *p = b_v; | |
495 | break; | |
496 | } | |
497 | break; | |
498 | case V4L2_PIX_FMT_BGR32: | |
499 | switch (color) { | |
500 | case 0: | |
501 | *p = b_v; | |
502 | break; | |
503 | case 1: | |
504 | *p = g_u; | |
505 | break; | |
506 | case 2: | |
507 | *p = r_y; | |
508 | break; | |
509 | case 3: | |
7088f4df | 510 | *p = alpha; |
3d51dca2 HV |
511 | break; |
512 | } | |
513 | break; | |
74d7c5af MD |
514 | } |
515 | } | |
516 | } | |
517 | ||
730947bc | 518 | static void precalculate_line(struct vivi_dev *dev) |
1e6dd65e | 519 | { |
730947bc | 520 | int w; |
1e6dd65e | 521 | |
3d51dca2 HV |
522 | for (w = 0; w < dev->width * 2; w++) { |
523 | int colorpos = w / (dev->width / 8) % 8; | |
74d7c5af | 524 | |
3d51dca2 | 525 | gen_twopix(dev, dev->line + w * dev->pixelsize, colorpos, w & 1); |
1e6dd65e | 526 | } |
730947bc | 527 | } |
1e6dd65e | 528 | |
730947bc HV |
529 | static void gen_text(struct vivi_dev *dev, char *basep, |
530 | int y, int x, char *text) | |
531 | { | |
532 | int line; | |
e164b58a | 533 | |
730947bc HV |
534 | /* Checks if it is possible to show string */ |
535 | if (y + 16 >= dev->height || x + strlen(text) * 8 >= dev->width) | |
536 | return; | |
1e6dd65e MCC |
537 | |
538 | /* Print stream time */ | |
730947bc HV |
539 | for (line = y; line < y + 16; line++) { |
540 | int j = 0; | |
3d51dca2 | 541 | char *pos = basep + line * dev->width * dev->pixelsize + x * dev->pixelsize; |
730947bc HV |
542 | char *s; |
543 | ||
544 | for (s = text; *s; s++) { | |
545 | u8 chr = font8x16[*s * 16 + line - y]; | |
546 | int i; | |
547 | ||
548 | for (i = 0; i < 7; i++, j++) { | |
74d7c5af | 549 | /* Draw white font on black background */ |
730947bc | 550 | if (chr & (1 << (7 - i))) |
3d51dca2 | 551 | gen_twopix(dev, pos + j * dev->pixelsize, WHITE, (x+y) & 1); |
74d7c5af | 552 | else |
3d51dca2 | 553 | gen_twopix(dev, pos + j * dev->pixelsize, TEXT_BLACK, (x+y) & 1); |
1e6dd65e MCC |
554 | } |
555 | } | |
556 | } | |
1e6dd65e | 557 | } |
78718e5d | 558 | |
730947bc | 559 | static void vivi_fillbuff(struct vivi_dev *dev, struct vivi_buffer *buf) |
1e6dd65e | 560 | { |
e007a325 PO |
561 | int wmax = dev->width; |
562 | int hmax = dev->height; | |
1e6dd65e | 563 | struct timeval ts; |
e007a325 | 564 | void *vbuf = vb2_plane_vaddr(&buf->vb, 0); |
730947bc HV |
565 | unsigned ms; |
566 | char str[100]; | |
567 | int h, line = 1; | |
a1c894fb | 568 | s32 gain; |
b50e7fe9 | 569 | |
5c554e6b | 570 | if (!vbuf) |
5a037706 | 571 | return; |
1e6dd65e | 572 | |
730947bc | 573 | for (h = 0; h < hmax; h++) |
3d51dca2 HV |
574 | memcpy(vbuf + h * wmax * dev->pixelsize, |
575 | dev->line + (dev->mv_count % wmax) * dev->pixelsize, | |
576 | wmax * dev->pixelsize); | |
5a037706 | 577 | |
1e6dd65e MCC |
578 | /* Updates stream time */ |
579 | ||
730947bc | 580 | dev->ms += jiffies_to_msecs(jiffies - dev->jiffies); |
543323bc | 581 | dev->jiffies = jiffies; |
730947bc HV |
582 | ms = dev->ms; |
583 | snprintf(str, sizeof(str), " %02d:%02d:%02d:%03d ", | |
584 | (ms / (60 * 60 * 1000)) % 24, | |
585 | (ms / (60 * 1000)) % 60, | |
586 | (ms / 1000) % 60, | |
587 | ms % 1000); | |
588 | gen_text(dev, vbuf, line++ * 16, 16, str); | |
589 | snprintf(str, sizeof(str), " %dx%d, input %d ", | |
590 | dev->width, dev->height, dev->input); | |
591 | gen_text(dev, vbuf, line++ * 16, 16, str); | |
592 | ||
a1c894fb | 593 | gain = v4l2_ctrl_g_ctrl(dev->gain); |
77e7c4e6 | 594 | mutex_lock(dev->ctrl_handler.lock); |
730947bc | 595 | snprintf(str, sizeof(str), " brightness %3d, contrast %3d, saturation %3d, hue %d ", |
7e996afa HV |
596 | dev->brightness->cur.val, |
597 | dev->contrast->cur.val, | |
598 | dev->saturation->cur.val, | |
599 | dev->hue->cur.val); | |
730947bc | 600 | gen_text(dev, vbuf, line++ * 16, 16, str); |
7088f4df HV |
601 | snprintf(str, sizeof(str), " autogain %d, gain %3d, volume %3d, alpha 0x%02x ", |
602 | dev->autogain->cur.val, gain, dev->volume->cur.val, | |
603 | dev->alpha->cur.val); | |
730947bc | 604 | gen_text(dev, vbuf, line++ * 16, 16, str); |
b6d17a56 | 605 | snprintf(str, sizeof(str), " int32 %d, int64 %lld, bitmask %08x ", |
7e996afa | 606 | dev->int32->cur.val, |
b6d17a56 HV |
607 | dev->int64->cur.val64, |
608 | dev->bitmask->cur.val); | |
7e996afa HV |
609 | gen_text(dev, vbuf, line++ * 16, 16, str); |
610 | snprintf(str, sizeof(str), " boolean %d, menu %s, string \"%s\" ", | |
611 | dev->boolean->cur.val, | |
612 | dev->menu->qmenu[dev->menu->cur.val], | |
613 | dev->string->cur.string); | |
f70cfc7f | 614 | gen_text(dev, vbuf, line++ * 16, 16, str); |
c520331a SA |
615 | snprintf(str, sizeof(str), " integer_menu %lld, value %d ", |
616 | dev->int_menu->qmenu_int[dev->int_menu->cur.val], | |
617 | dev->int_menu->cur.val); | |
618 | gen_text(dev, vbuf, line++ * 16, 16, str); | |
77e7c4e6 | 619 | mutex_unlock(dev->ctrl_handler.lock); |
7e996afa HV |
620 | if (dev->button_pressed) { |
621 | dev->button_pressed--; | |
622 | snprintf(str, sizeof(str), " button pressed!"); | |
623 | gen_text(dev, vbuf, line++ * 16, 16, str); | |
624 | } | |
730947bc HV |
625 | |
626 | dev->mv_count += 2; | |
1e6dd65e | 627 | |
e007a325 PO |
628 | buf->vb.v4l2_buf.field = dev->field; |
629 | dev->field_count++; | |
630 | buf->vb.v4l2_buf.sequence = dev->field_count >> 1; | |
1e6dd65e | 631 | do_gettimeofday(&ts); |
e007a325 | 632 | buf->vb.v4l2_buf.timestamp = ts; |
1e6dd65e MCC |
633 | } |
634 | ||
730947bc | 635 | static void vivi_thread_tick(struct vivi_dev *dev) |
1e6dd65e | 636 | { |
78718e5d | 637 | struct vivi_dmaqueue *dma_q = &dev->vidq; |
730947bc | 638 | struct vivi_buffer *buf; |
78718e5d | 639 | unsigned long flags = 0; |
1e6dd65e | 640 | |
78718e5d | 641 | dprintk(dev, 1, "Thread tick\n"); |
1e6dd65e | 642 | |
78718e5d BP |
643 | spin_lock_irqsave(&dev->slock, flags); |
644 | if (list_empty(&dma_q->active)) { | |
645 | dprintk(dev, 1, "No active queue to serve\n"); | |
1de5be5e HV |
646 | spin_unlock_irqrestore(&dev->slock, flags); |
647 | return; | |
78718e5d | 648 | } |
1e6dd65e | 649 | |
e007a325 PO |
650 | buf = list_entry(dma_q->active.next, struct vivi_buffer, list); |
651 | list_del(&buf->list); | |
1de5be5e | 652 | spin_unlock_irqrestore(&dev->slock, flags); |
1e6dd65e | 653 | |
e007a325 | 654 | do_gettimeofday(&buf->vb.v4l2_buf.timestamp); |
78718e5d BP |
655 | |
656 | /* Fill buffer */ | |
730947bc | 657 | vivi_fillbuff(dev, buf); |
78718e5d BP |
658 | dprintk(dev, 1, "filled buffer %p\n", buf); |
659 | ||
e007a325 PO |
660 | vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE); |
661 | dprintk(dev, 2, "[%p/%d] done\n", buf, buf->vb.v4l2_buf.index); | |
1e6dd65e MCC |
662 | } |
663 | ||
6594ad82 MCC |
664 | #define frames_to_ms(frames) \ |
665 | ((frames * WAKE_NUMERATOR * 1000) / WAKE_DENOMINATOR) | |
666 | ||
730947bc | 667 | static void vivi_sleep(struct vivi_dev *dev) |
1e6dd65e | 668 | { |
78718e5d BP |
669 | struct vivi_dmaqueue *dma_q = &dev->vidq; |
670 | int timeout; | |
1e6dd65e MCC |
671 | DECLARE_WAITQUEUE(wait, current); |
672 | ||
7e28adb2 | 673 | dprintk(dev, 1, "%s dma_q=0x%08lx\n", __func__, |
6c2f9901 | 674 | (unsigned long)dma_q); |
1e6dd65e MCC |
675 | |
676 | add_wait_queue(&dma_q->wq, &wait); | |
6594ad82 MCC |
677 | if (kthread_should_stop()) |
678 | goto stop_task; | |
679 | ||
6594ad82 | 680 | /* Calculate time to wake up */ |
78718e5d | 681 | timeout = msecs_to_jiffies(frames_to_ms(1)); |
6594ad82 | 682 | |
730947bc | 683 | vivi_thread_tick(dev); |
6594ad82 MCC |
684 | |
685 | schedule_timeout_interruptible(timeout); | |
1e6dd65e | 686 | |
6594ad82 | 687 | stop_task: |
1e6dd65e MCC |
688 | remove_wait_queue(&dma_q->wq, &wait); |
689 | try_to_freeze(); | |
690 | } | |
691 | ||
972c3517 | 692 | static int vivi_thread(void *data) |
1e6dd65e | 693 | { |
730947bc | 694 | struct vivi_dev *dev = data; |
1e6dd65e | 695 | |
6c2f9901 | 696 | dprintk(dev, 1, "thread started\n"); |
1e6dd65e | 697 | |
83144186 | 698 | set_freezable(); |
0b600512 | 699 | |
1e6dd65e | 700 | for (;;) { |
730947bc | 701 | vivi_sleep(dev); |
1e6dd65e MCC |
702 | |
703 | if (kthread_should_stop()) | |
704 | break; | |
705 | } | |
6c2f9901 | 706 | dprintk(dev, 1, "thread: exit\n"); |
1e6dd65e MCC |
707 | return 0; |
708 | } | |
709 | ||
e007a325 | 710 | static int vivi_start_generating(struct vivi_dev *dev) |
1e6dd65e | 711 | { |
78718e5d | 712 | struct vivi_dmaqueue *dma_q = &dev->vidq; |
6c2f9901 | 713 | |
7e28adb2 | 714 | dprintk(dev, 1, "%s\n", __func__); |
1e6dd65e | 715 | |
730947bc HV |
716 | /* Resets frame counters */ |
717 | dev->ms = 0; | |
718 | dev->mv_count = 0; | |
719 | dev->jiffies = jiffies; | |
720 | ||
721 | dma_q->frame = 0; | |
722 | dma_q->ini_jiffies = jiffies; | |
723 | dma_q->kthread = kthread_run(vivi_thread, dev, dev->v4l2_dev.name); | |
1e6dd65e | 724 | |
054afee4 | 725 | if (IS_ERR(dma_q->kthread)) { |
5ab6c9af | 726 | v4l2_err(&dev->v4l2_dev, "kernel_thread() failed\n"); |
e007a325 | 727 | return PTR_ERR(dma_q->kthread); |
1e6dd65e | 728 | } |
0b600512 MCC |
729 | /* Wakes thread */ |
730 | wake_up_interruptible(&dma_q->wq); | |
731 | ||
7e28adb2 | 732 | dprintk(dev, 1, "returning from %s\n", __func__); |
e007a325 | 733 | return 0; |
1e6dd65e MCC |
734 | } |
735 | ||
e007a325 | 736 | static void vivi_stop_generating(struct vivi_dev *dev) |
1e6dd65e | 737 | { |
730947bc | 738 | struct vivi_dmaqueue *dma_q = &dev->vidq; |
6c2f9901 | 739 | |
7e28adb2 | 740 | dprintk(dev, 1, "%s\n", __func__); |
730947bc | 741 | |
1e6dd65e MCC |
742 | /* shutdown control thread */ |
743 | if (dma_q->kthread) { | |
744 | kthread_stop(dma_q->kthread); | |
543323bc | 745 | dma_q->kthread = NULL; |
1e6dd65e | 746 | } |
730947bc | 747 | |
e007a325 PO |
748 | /* |
749 | * Typical driver might need to wait here until dma engine stops. | |
750 | * In this case we can abort imiedetly, so it's just a noop. | |
751 | */ | |
752 | ||
753 | /* Release all active buffers */ | |
754 | while (!list_empty(&dma_q->active)) { | |
755 | struct vivi_buffer *buf; | |
756 | buf = list_entry(dma_q->active.next, struct vivi_buffer, list); | |
757 | list_del(&buf->list); | |
758 | vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); | |
759 | dprintk(dev, 2, "[%p/%d] done\n", buf, buf->vb.v4l2_buf.index); | |
760 | } | |
1e6dd65e | 761 | } |
1e6dd65e MCC |
762 | /* ------------------------------------------------------------------ |
763 | Videobuf operations | |
764 | ------------------------------------------------------------------*/ | |
fc714e70 GL |
765 | static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt, |
766 | unsigned int *nbuffers, unsigned int *nplanes, | |
767 | unsigned int sizes[], void *alloc_ctxs[]) | |
1e6dd65e | 768 | { |
e007a325 PO |
769 | struct vivi_dev *dev = vb2_get_drv_priv(vq); |
770 | unsigned long size; | |
771 | ||
3d51dca2 | 772 | size = dev->width * dev->height * dev->pixelsize; |
1e6dd65e | 773 | |
e007a325 PO |
774 | if (0 == *nbuffers) |
775 | *nbuffers = 32; | |
1e6dd65e | 776 | |
e007a325 PO |
777 | while (size * *nbuffers > vid_limit * 1024 * 1024) |
778 | (*nbuffers)--; | |
6bb2790f | 779 | |
e007a325 | 780 | *nplanes = 1; |
6bb2790f | 781 | |
e007a325 PO |
782 | sizes[0] = size; |
783 | ||
784 | /* | |
785 | * videobuf2-vmalloc allocator is context-less so no need to set | |
786 | * alloc_ctxs array. | |
787 | */ | |
788 | ||
789 | dprintk(dev, 1, "%s, count=%d, size=%ld\n", __func__, | |
790 | *nbuffers, size); | |
6bb2790f | 791 | |
1e6dd65e MCC |
792 | return 0; |
793 | } | |
794 | ||
e007a325 | 795 | static int buffer_init(struct vb2_buffer *vb) |
1e6dd65e | 796 | { |
e007a325 | 797 | struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue); |
6c2f9901 | 798 | |
e007a325 | 799 | BUG_ON(NULL == dev->fmt); |
1e6dd65e | 800 | |
e007a325 PO |
801 | /* |
802 | * This callback is called once per buffer, after its allocation. | |
803 | * | |
804 | * Vivi does not allow changing format during streaming, but it is | |
805 | * possible to do so when streaming is paused (i.e. in streamoff state). | |
806 | * Buffers however are not freed when going into streamoff and so | |
807 | * buffer size verification has to be done in buffer_prepare, on each | |
808 | * qbuf. | |
809 | * It would be best to move verification code here to buf_init and | |
810 | * s_fmt though. | |
811 | */ | |
812 | ||
813 | return 0; | |
1e6dd65e MCC |
814 | } |
815 | ||
e007a325 | 816 | static int buffer_prepare(struct vb2_buffer *vb) |
1e6dd65e | 817 | { |
e007a325 | 818 | struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue); |
543323bc | 819 | struct vivi_buffer *buf = container_of(vb, struct vivi_buffer, vb); |
e007a325 | 820 | unsigned long size; |
1e6dd65e | 821 | |
e007a325 | 822 | dprintk(dev, 1, "%s, field=%d\n", __func__, vb->v4l2_buf.field); |
1e6dd65e | 823 | |
730947bc | 824 | BUG_ON(NULL == dev->fmt); |
78718e5d | 825 | |
e007a325 PO |
826 | /* |
827 | * Theses properties only change when queue is idle, see s_fmt. | |
828 | * The below checks should not be performed here, on each | |
829 | * buffer_prepare (i.e. on each qbuf). Most of the code in this function | |
830 | * should thus be moved to buffer_init and s_fmt. | |
831 | */ | |
730947bc HV |
832 | if (dev->width < 48 || dev->width > MAX_WIDTH || |
833 | dev->height < 32 || dev->height > MAX_HEIGHT) | |
1e6dd65e | 834 | return -EINVAL; |
78718e5d | 835 | |
3d51dca2 | 836 | size = dev->width * dev->height * dev->pixelsize; |
e007a325 PO |
837 | if (vb2_plane_size(vb, 0) < size) { |
838 | dprintk(dev, 1, "%s data will not fit into plane (%lu < %lu)\n", | |
839 | __func__, vb2_plane_size(vb, 0), size); | |
1e6dd65e | 840 | return -EINVAL; |
e007a325 PO |
841 | } |
842 | ||
843 | vb2_set_plane_payload(&buf->vb, 0, size); | |
1e6dd65e | 844 | |
e007a325 | 845 | buf->fmt = dev->fmt; |
1e6dd65e | 846 | |
730947bc HV |
847 | precalculate_bars(dev); |
848 | precalculate_line(dev); | |
c285addb | 849 | |
e007a325 PO |
850 | return 0; |
851 | } | |
1e6dd65e | 852 | |
e007a325 PO |
853 | static int buffer_finish(struct vb2_buffer *vb) |
854 | { | |
855 | struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue); | |
856 | dprintk(dev, 1, "%s\n", __func__); | |
1e6dd65e | 857 | return 0; |
e007a325 PO |
858 | } |
859 | ||
860 | static void buffer_cleanup(struct vb2_buffer *vb) | |
861 | { | |
862 | struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue); | |
863 | dprintk(dev, 1, "%s\n", __func__); | |
1e6dd65e | 864 | |
1e6dd65e MCC |
865 | } |
866 | ||
e007a325 | 867 | static void buffer_queue(struct vb2_buffer *vb) |
1e6dd65e | 868 | { |
e007a325 | 869 | struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue); |
730947bc | 870 | struct vivi_buffer *buf = container_of(vb, struct vivi_buffer, vb); |
78718e5d | 871 | struct vivi_dmaqueue *vidq = &dev->vidq; |
e007a325 | 872 | unsigned long flags = 0; |
78718e5d | 873 | |
7e28adb2 | 874 | dprintk(dev, 1, "%s\n", __func__); |
78718e5d | 875 | |
e007a325 PO |
876 | spin_lock_irqsave(&dev->slock, flags); |
877 | list_add_tail(&buf->list, &vidq->active); | |
878 | spin_unlock_irqrestore(&dev->slock, flags); | |
1e6dd65e MCC |
879 | } |
880 | ||
bd323e28 | 881 | static int start_streaming(struct vb2_queue *vq, unsigned int count) |
1e6dd65e | 882 | { |
e007a325 PO |
883 | struct vivi_dev *dev = vb2_get_drv_priv(vq); |
884 | dprintk(dev, 1, "%s\n", __func__); | |
885 | return vivi_start_generating(dev); | |
886 | } | |
1e6dd65e | 887 | |
e007a325 PO |
888 | /* abort streaming and wait for last buffer */ |
889 | static int stop_streaming(struct vb2_queue *vq) | |
890 | { | |
891 | struct vivi_dev *dev = vb2_get_drv_priv(vq); | |
7e28adb2 | 892 | dprintk(dev, 1, "%s\n", __func__); |
e007a325 PO |
893 | vivi_stop_generating(dev); |
894 | return 0; | |
895 | } | |
896 | ||
897 | static void vivi_lock(struct vb2_queue *vq) | |
898 | { | |
899 | struct vivi_dev *dev = vb2_get_drv_priv(vq); | |
900 | mutex_lock(&dev->mutex); | |
901 | } | |
1e6dd65e | 902 | |
e007a325 PO |
903 | static void vivi_unlock(struct vb2_queue *vq) |
904 | { | |
905 | struct vivi_dev *dev = vb2_get_drv_priv(vq); | |
906 | mutex_unlock(&dev->mutex); | |
1e6dd65e MCC |
907 | } |
908 | ||
e007a325 PO |
909 | |
910 | static struct vb2_ops vivi_video_qops = { | |
911 | .queue_setup = queue_setup, | |
912 | .buf_init = buffer_init, | |
913 | .buf_prepare = buffer_prepare, | |
914 | .buf_finish = buffer_finish, | |
915 | .buf_cleanup = buffer_cleanup, | |
916 | .buf_queue = buffer_queue, | |
917 | .start_streaming = start_streaming, | |
918 | .stop_streaming = stop_streaming, | |
919 | .wait_prepare = vivi_unlock, | |
920 | .wait_finish = vivi_lock, | |
1e6dd65e MCC |
921 | }; |
922 | ||
c820cc45 MCC |
923 | /* ------------------------------------------------------------------ |
924 | IOCTL vidioc handling | |
925 | ------------------------------------------------------------------*/ | |
543323bc | 926 | static int vidioc_querycap(struct file *file, void *priv, |
c820cc45 MCC |
927 | struct v4l2_capability *cap) |
928 | { | |
730947bc | 929 | struct vivi_dev *dev = video_drvdata(file); |
5ab6c9af | 930 | |
c820cc45 MCC |
931 | strcpy(cap->driver, "vivi"); |
932 | strcpy(cap->card, "vivi"); | |
5ab6c9af | 933 | strlcpy(cap->bus_info, dev->v4l2_dev.name, sizeof(cap->bus_info)); |
23268ae5 HV |
934 | cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING | |
935 | V4L2_CAP_READWRITE; | |
936 | cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; | |
c820cc45 MCC |
937 | return 0; |
938 | } | |
939 | ||
78b526a4 | 940 | static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, |
c820cc45 MCC |
941 | struct v4l2_fmtdesc *f) |
942 | { | |
d891f475 MD |
943 | struct vivi_fmt *fmt; |
944 | ||
945 | if (f->index >= ARRAY_SIZE(formats)) | |
c820cc45 MCC |
946 | return -EINVAL; |
947 | ||
d891f475 MD |
948 | fmt = &formats[f->index]; |
949 | ||
950 | strlcpy(f->description, fmt->name, sizeof(f->description)); | |
951 | f->pixelformat = fmt->fourcc; | |
c820cc45 MCC |
952 | return 0; |
953 | } | |
954 | ||
78b526a4 | 955 | static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, |
c820cc45 MCC |
956 | struct v4l2_format *f) |
957 | { | |
730947bc | 958 | struct vivi_dev *dev = video_drvdata(file); |
c820cc45 | 959 | |
730947bc HV |
960 | f->fmt.pix.width = dev->width; |
961 | f->fmt.pix.height = dev->height; | |
e007a325 | 962 | f->fmt.pix.field = dev->field; |
730947bc | 963 | f->fmt.pix.pixelformat = dev->fmt->fourcc; |
c820cc45 | 964 | f->fmt.pix.bytesperline = |
730947bc | 965 | (f->fmt.pix.width * dev->fmt->depth) >> 3; |
c820cc45 MCC |
966 | f->fmt.pix.sizeimage = |
967 | f->fmt.pix.height * f->fmt.pix.bytesperline; | |
8c79eece HV |
968 | if (dev->fmt->fourcc == V4L2_PIX_FMT_YUYV || |
969 | dev->fmt->fourcc == V4L2_PIX_FMT_UYVY) | |
970 | f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; | |
971 | else | |
972 | f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; | |
730947bc | 973 | return 0; |
c820cc45 MCC |
974 | } |
975 | ||
78b526a4 | 976 | static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, |
1e6dd65e MCC |
977 | struct v4l2_format *f) |
978 | { | |
730947bc | 979 | struct vivi_dev *dev = video_drvdata(file); |
1e6dd65e MCC |
980 | struct vivi_fmt *fmt; |
981 | enum v4l2_field field; | |
1e6dd65e | 982 | |
d891f475 MD |
983 | fmt = get_format(f); |
984 | if (!fmt) { | |
985 | dprintk(dev, 1, "Fourcc format (0x%08x) invalid.\n", | |
986 | f->fmt.pix.pixelformat); | |
1e6dd65e MCC |
987 | return -EINVAL; |
988 | } | |
1e6dd65e MCC |
989 | |
990 | field = f->fmt.pix.field; | |
991 | ||
992 | if (field == V4L2_FIELD_ANY) { | |
543323bc | 993 | field = V4L2_FIELD_INTERLACED; |
1e6dd65e | 994 | } else if (V4L2_FIELD_INTERLACED != field) { |
6c2f9901 | 995 | dprintk(dev, 1, "Field type invalid.\n"); |
1e6dd65e MCC |
996 | return -EINVAL; |
997 | } | |
998 | ||
1e6dd65e | 999 | f->fmt.pix.field = field; |
730947bc HV |
1000 | v4l_bound_align_image(&f->fmt.pix.width, 48, MAX_WIDTH, 2, |
1001 | &f->fmt.pix.height, 32, MAX_HEIGHT, 0, 0); | |
1e6dd65e MCC |
1002 | f->fmt.pix.bytesperline = |
1003 | (f->fmt.pix.width * fmt->depth) >> 3; | |
1004 | f->fmt.pix.sizeimage = | |
1005 | f->fmt.pix.height * f->fmt.pix.bytesperline; | |
8c79eece HV |
1006 | if (fmt->fourcc == V4L2_PIX_FMT_YUYV || |
1007 | fmt->fourcc == V4L2_PIX_FMT_UYVY) | |
1008 | f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; | |
1009 | else | |
1010 | f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; | |
1e6dd65e MCC |
1011 | return 0; |
1012 | } | |
1013 | ||
e164b58a MCC |
1014 | static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, |
1015 | struct v4l2_format *f) | |
1016 | { | |
730947bc | 1017 | struct vivi_dev *dev = video_drvdata(file); |
e007a325 | 1018 | struct vb2_queue *q = &dev->vb_vidq; |
e164b58a | 1019 | |
730947bc | 1020 | int ret = vidioc_try_fmt_vid_cap(file, priv, f); |
e164b58a MCC |
1021 | if (ret < 0) |
1022 | return ret; | |
1023 | ||
e007a325 | 1024 | if (vb2_is_streaming(q)) { |
730947bc | 1025 | dprintk(dev, 1, "%s device busy\n", __func__); |
e007a325 | 1026 | return -EBUSY; |
e164b58a MCC |
1027 | } |
1028 | ||
730947bc | 1029 | dev->fmt = get_format(f); |
3d51dca2 | 1030 | dev->pixelsize = dev->fmt->depth / 8; |
730947bc HV |
1031 | dev->width = f->fmt.pix.width; |
1032 | dev->height = f->fmt.pix.height; | |
e007a325 PO |
1033 | dev->field = f->fmt.pix.field; |
1034 | ||
1035 | return 0; | |
1e6dd65e MCC |
1036 | } |
1037 | ||
543323bc MCC |
1038 | static int vidioc_reqbufs(struct file *file, void *priv, |
1039 | struct v4l2_requestbuffers *p) | |
1e6dd65e | 1040 | { |
730947bc | 1041 | struct vivi_dev *dev = video_drvdata(file); |
e007a325 | 1042 | return vb2_reqbufs(&dev->vb_vidq, p); |
1e6dd65e MCC |
1043 | } |
1044 | ||
543323bc | 1045 | static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *p) |
1e6dd65e | 1046 | { |
730947bc | 1047 | struct vivi_dev *dev = video_drvdata(file); |
e007a325 | 1048 | return vb2_querybuf(&dev->vb_vidq, p); |
c820cc45 | 1049 | } |
1e6dd65e | 1050 | |
543323bc | 1051 | static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p) |
c820cc45 | 1052 | { |
730947bc | 1053 | struct vivi_dev *dev = video_drvdata(file); |
e007a325 | 1054 | return vb2_qbuf(&dev->vb_vidq, p); |
c820cc45 | 1055 | } |
1e6dd65e | 1056 | |
543323bc | 1057 | static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p) |
c820cc45 | 1058 | { |
730947bc | 1059 | struct vivi_dev *dev = video_drvdata(file); |
e007a325 | 1060 | return vb2_dqbuf(&dev->vb_vidq, p, file->f_flags & O_NONBLOCK); |
c820cc45 | 1061 | } |
1e6dd65e | 1062 | |
dc46ace1 | 1063 | static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) |
c820cc45 | 1064 | { |
730947bc | 1065 | struct vivi_dev *dev = video_drvdata(file); |
e007a325 | 1066 | return vb2_streamon(&dev->vb_vidq, i); |
c820cc45 | 1067 | } |
1e6dd65e | 1068 | |
dc46ace1 | 1069 | static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) |
c820cc45 | 1070 | { |
730947bc | 1071 | struct vivi_dev *dev = video_drvdata(file); |
e007a325 | 1072 | return vb2_streamoff(&dev->vb_vidq, i); |
c820cc45 MCC |
1073 | } |
1074 | ||
543323bc | 1075 | static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *i) |
c820cc45 | 1076 | { |
c820cc45 MCC |
1077 | return 0; |
1078 | } | |
1e6dd65e | 1079 | |
c820cc45 | 1080 | /* only one input in this sample driver */ |
543323bc | 1081 | static int vidioc_enum_input(struct file *file, void *priv, |
c820cc45 MCC |
1082 | struct v4l2_input *inp) |
1083 | { | |
e164b58a | 1084 | if (inp->index >= NUM_INPUTS) |
c820cc45 | 1085 | return -EINVAL; |
1e6dd65e | 1086 | |
c820cc45 | 1087 | inp->type = V4L2_INPUT_TYPE_CAMERA; |
784c668b | 1088 | inp->std = V4L2_STD_525_60; |
e164b58a | 1089 | sprintf(inp->name, "Camera %u", inp->index); |
730947bc | 1090 | return 0; |
c820cc45 | 1091 | } |
1e6dd65e | 1092 | |
543323bc | 1093 | static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) |
c820cc45 | 1094 | { |
730947bc | 1095 | struct vivi_dev *dev = video_drvdata(file); |
e164b58a MCC |
1096 | |
1097 | *i = dev->input; | |
730947bc | 1098 | return 0; |
c820cc45 | 1099 | } |
730947bc | 1100 | |
543323bc | 1101 | static int vidioc_s_input(struct file *file, void *priv, unsigned int i) |
c820cc45 | 1102 | { |
730947bc | 1103 | struct vivi_dev *dev = video_drvdata(file); |
e164b58a MCC |
1104 | |
1105 | if (i >= NUM_INPUTS) | |
c820cc45 | 1106 | return -EINVAL; |
1e6dd65e | 1107 | |
c7a52f8d HV |
1108 | if (i == dev->input) |
1109 | return 0; | |
1110 | ||
e164b58a | 1111 | dev->input = i; |
730947bc HV |
1112 | precalculate_bars(dev); |
1113 | precalculate_line(dev); | |
1114 | return 0; | |
c820cc45 | 1115 | } |
1e6dd65e | 1116 | |
730947bc | 1117 | /* --- controls ---------------------------------------------- */ |
1e6dd65e | 1118 | |
a1c894fb HV |
1119 | static int vivi_g_volatile_ctrl(struct v4l2_ctrl *ctrl) |
1120 | { | |
1121 | struct vivi_dev *dev = container_of(ctrl->handler, struct vivi_dev, ctrl_handler); | |
1122 | ||
1123 | if (ctrl == dev->autogain) | |
1124 | dev->gain->val = jiffies & 0xff; | |
1125 | return 0; | |
1126 | } | |
1127 | ||
7e996afa | 1128 | static int vivi_s_ctrl(struct v4l2_ctrl *ctrl) |
c820cc45 | 1129 | { |
7e996afa | 1130 | struct vivi_dev *dev = container_of(ctrl->handler, struct vivi_dev, ctrl_handler); |
1e6dd65e | 1131 | |
7088f4df HV |
1132 | switch (ctrl->id) { |
1133 | case V4L2_CID_ALPHA_COMPONENT: | |
1134 | dev->alpha_component = ctrl->val; | |
1135 | break; | |
1136 | default: | |
1137 | if (ctrl == dev->button) | |
1138 | dev->button_pressed = 30; | |
1139 | break; | |
1140 | } | |
7e996afa | 1141 | return 0; |
1e6dd65e MCC |
1142 | } |
1143 | ||
1144 | /* ------------------------------------------------------------------ | |
1145 | File operations for the device | |
1146 | ------------------------------------------------------------------*/ | |
1147 | ||
1e6dd65e MCC |
1148 | static ssize_t |
1149 | vivi_read(struct file *file, char __user *data, size_t count, loff_t *ppos) | |
1150 | { | |
730947bc | 1151 | struct vivi_dev *dev = video_drvdata(file); |
d9762df4 | 1152 | int err; |
1e6dd65e | 1153 | |
e007a325 | 1154 | dprintk(dev, 1, "read called\n"); |
d9762df4 HV |
1155 | mutex_lock(&dev->mutex); |
1156 | err = vb2_read(&dev->vb_vidq, data, count, ppos, | |
e007a325 | 1157 | file->f_flags & O_NONBLOCK); |
d9762df4 HV |
1158 | mutex_unlock(&dev->mutex); |
1159 | return err; | |
1e6dd65e MCC |
1160 | } |
1161 | ||
1162 | static unsigned int | |
1163 | vivi_poll(struct file *file, struct poll_table_struct *wait) | |
1164 | { | |
730947bc | 1165 | struct vivi_dev *dev = video_drvdata(file); |
e007a325 | 1166 | struct vb2_queue *q = &dev->vb_vidq; |
1e6dd65e | 1167 | |
7e28adb2 | 1168 | dprintk(dev, 1, "%s\n", __func__); |
0bf0f713 | 1169 | return vb2_poll(q, file, wait); |
1e6dd65e MCC |
1170 | } |
1171 | ||
bec43661 | 1172 | static int vivi_close(struct file *file) |
1e6dd65e | 1173 | { |
50462eb0 | 1174 | struct video_device *vdev = video_devdata(file); |
730947bc | 1175 | struct vivi_dev *dev = video_drvdata(file); |
1e6dd65e | 1176 | |
e007a325 PO |
1177 | dprintk(dev, 1, "close called (dev=%s), file %p\n", |
1178 | video_device_node_name(vdev), file); | |
1e6dd65e | 1179 | |
2e4784d0 | 1180 | if (v4l2_fh_is_singular_file(file)) |
e007a325 | 1181 | vb2_queue_release(&dev->vb_vidq); |
2e4784d0 | 1182 | return v4l2_fh_release(file); |
1e6dd65e MCC |
1183 | } |
1184 | ||
543323bc | 1185 | static int vivi_mmap(struct file *file, struct vm_area_struct *vma) |
1e6dd65e | 1186 | { |
730947bc | 1187 | struct vivi_dev *dev = video_drvdata(file); |
1e6dd65e MCC |
1188 | int ret; |
1189 | ||
6c2f9901 | 1190 | dprintk(dev, 1, "mmap called, vma=0x%08lx\n", (unsigned long)vma); |
1e6dd65e | 1191 | |
e007a325 | 1192 | ret = vb2_mmap(&dev->vb_vidq, vma); |
6c2f9901 | 1193 | dprintk(dev, 1, "vma start=0x%08lx, size=%ld, ret=%d\n", |
1e6dd65e | 1194 | (unsigned long)vma->vm_start, |
730947bc | 1195 | (unsigned long)vma->vm_end - (unsigned long)vma->vm_start, |
1e6dd65e | 1196 | ret); |
1e6dd65e MCC |
1197 | return ret; |
1198 | } | |
1199 | ||
7e996afa | 1200 | static const struct v4l2_ctrl_ops vivi_ctrl_ops = { |
a1c894fb | 1201 | .g_volatile_ctrl = vivi_g_volatile_ctrl, |
7e996afa HV |
1202 | .s_ctrl = vivi_s_ctrl, |
1203 | }; | |
1204 | ||
1205 | #define VIVI_CID_CUSTOM_BASE (V4L2_CID_USER_BASE | 0xf000) | |
1206 | ||
1207 | static const struct v4l2_ctrl_config vivi_ctrl_button = { | |
1208 | .ops = &vivi_ctrl_ops, | |
1209 | .id = VIVI_CID_CUSTOM_BASE + 0, | |
1210 | .name = "Button", | |
1211 | .type = V4L2_CTRL_TYPE_BUTTON, | |
1212 | }; | |
1213 | ||
1214 | static const struct v4l2_ctrl_config vivi_ctrl_boolean = { | |
1215 | .ops = &vivi_ctrl_ops, | |
1216 | .id = VIVI_CID_CUSTOM_BASE + 1, | |
1217 | .name = "Boolean", | |
1218 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
1219 | .min = 0, | |
1220 | .max = 1, | |
1221 | .step = 1, | |
1222 | .def = 1, | |
1223 | }; | |
1224 | ||
1225 | static const struct v4l2_ctrl_config vivi_ctrl_int32 = { | |
1226 | .ops = &vivi_ctrl_ops, | |
1227 | .id = VIVI_CID_CUSTOM_BASE + 2, | |
1228 | .name = "Integer 32 Bits", | |
1229 | .type = V4L2_CTRL_TYPE_INTEGER, | |
5b283029 HV |
1230 | .min = 0x80000000, |
1231 | .max = 0x7fffffff, | |
7e996afa HV |
1232 | .step = 1, |
1233 | }; | |
1234 | ||
1235 | static const struct v4l2_ctrl_config vivi_ctrl_int64 = { | |
1236 | .ops = &vivi_ctrl_ops, | |
1237 | .id = VIVI_CID_CUSTOM_BASE + 3, | |
1238 | .name = "Integer 64 Bits", | |
1239 | .type = V4L2_CTRL_TYPE_INTEGER64, | |
1240 | }; | |
1241 | ||
1242 | static const char * const vivi_ctrl_menu_strings[] = { | |
1243 | "Menu Item 0 (Skipped)", | |
1244 | "Menu Item 1", | |
1245 | "Menu Item 2 (Skipped)", | |
1246 | "Menu Item 3", | |
1247 | "Menu Item 4", | |
1248 | "Menu Item 5 (Skipped)", | |
1249 | NULL, | |
1250 | }; | |
1251 | ||
1252 | static const struct v4l2_ctrl_config vivi_ctrl_menu = { | |
1253 | .ops = &vivi_ctrl_ops, | |
1254 | .id = VIVI_CID_CUSTOM_BASE + 4, | |
1255 | .name = "Menu", | |
1256 | .type = V4L2_CTRL_TYPE_MENU, | |
1257 | .min = 1, | |
1258 | .max = 4, | |
1259 | .def = 3, | |
1260 | .menu_skip_mask = 0x04, | |
1261 | .qmenu = vivi_ctrl_menu_strings, | |
1262 | }; | |
1263 | ||
1264 | static const struct v4l2_ctrl_config vivi_ctrl_string = { | |
1265 | .ops = &vivi_ctrl_ops, | |
1266 | .id = VIVI_CID_CUSTOM_BASE + 5, | |
1267 | .name = "String", | |
1268 | .type = V4L2_CTRL_TYPE_STRING, | |
1269 | .min = 2, | |
1270 | .max = 4, | |
1271 | .step = 1, | |
1272 | }; | |
1273 | ||
b6d17a56 HV |
1274 | static const struct v4l2_ctrl_config vivi_ctrl_bitmask = { |
1275 | .ops = &vivi_ctrl_ops, | |
1276 | .id = VIVI_CID_CUSTOM_BASE + 6, | |
1277 | .name = "Bitmask", | |
1278 | .type = V4L2_CTRL_TYPE_BITMASK, | |
1279 | .def = 0x80002000, | |
1280 | .min = 0, | |
1281 | .max = 0x80402010, | |
1282 | .step = 0, | |
1283 | }; | |
1284 | ||
c520331a SA |
1285 | static const s64 vivi_ctrl_int_menu_values[] = { |
1286 | 1, 1, 2, 3, 5, 8, 13, 21, 42, | |
1287 | }; | |
1288 | ||
1289 | static const struct v4l2_ctrl_config vivi_ctrl_int_menu = { | |
1290 | .ops = &vivi_ctrl_ops, | |
1291 | .id = VIVI_CID_CUSTOM_BASE + 7, | |
1292 | .name = "Integer menu", | |
1293 | .type = V4L2_CTRL_TYPE_INTEGER_MENU, | |
1294 | .min = 1, | |
1295 | .max = 8, | |
1296 | .def = 4, | |
1297 | .menu_skip_mask = 0x02, | |
1298 | .qmenu_int = vivi_ctrl_int_menu_values, | |
1299 | }; | |
1300 | ||
bec43661 | 1301 | static const struct v4l2_file_operations vivi_fops = { |
1e6dd65e | 1302 | .owner = THIS_MODULE, |
c7a52f8d | 1303 | .open = v4l2_fh_open, |
f905c442 | 1304 | .release = vivi_close, |
1e6dd65e MCC |
1305 | .read = vivi_read, |
1306 | .poll = vivi_poll, | |
fedc6c81 | 1307 | .unlocked_ioctl = video_ioctl2, /* V4L2 ioctl handler */ |
5a037706 | 1308 | .mmap = vivi_mmap, |
1e6dd65e MCC |
1309 | }; |
1310 | ||
a399810c | 1311 | static const struct v4l2_ioctl_ops vivi_ioctl_ops = { |
c820cc45 | 1312 | .vidioc_querycap = vidioc_querycap, |
78b526a4 HV |
1313 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, |
1314 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, | |
1315 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, | |
1316 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, | |
c820cc45 MCC |
1317 | .vidioc_reqbufs = vidioc_reqbufs, |
1318 | .vidioc_querybuf = vidioc_querybuf, | |
1319 | .vidioc_qbuf = vidioc_qbuf, | |
1320 | .vidioc_dqbuf = vidioc_dqbuf, | |
1321 | .vidioc_s_std = vidioc_s_std, | |
1322 | .vidioc_enum_input = vidioc_enum_input, | |
1323 | .vidioc_g_input = vidioc_g_input, | |
1324 | .vidioc_s_input = vidioc_s_input, | |
730947bc HV |
1325 | .vidioc_streamon = vidioc_streamon, |
1326 | .vidioc_streamoff = vidioc_streamoff, | |
e2ecb257 | 1327 | .vidioc_log_status = v4l2_ctrl_log_status, |
6d6604fa | 1328 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, |
c7a52f8d | 1329 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, |
a399810c HV |
1330 | }; |
1331 | ||
1332 | static struct video_device vivi_template = { | |
1333 | .name = "vivi", | |
a399810c HV |
1334 | .fops = &vivi_fops, |
1335 | .ioctl_ops = &vivi_ioctl_ops, | |
a399810c HV |
1336 | .release = video_device_release, |
1337 | ||
784c668b | 1338 | .tvnorms = V4L2_STD_525_60, |
e75f9cee | 1339 | .current_norm = V4L2_STD_NTSC_M, |
1e6dd65e | 1340 | }; |
5ab6c9af | 1341 | |
c820cc45 | 1342 | /* ----------------------------------------------------------------- |
1e6dd65e MCC |
1343 | Initialization and module stuff |
1344 | ------------------------------------------------------------------*/ | |
1345 | ||
5ab6c9af HV |
1346 | static int vivi_release(void) |
1347 | { | |
1348 | struct vivi_dev *dev; | |
1349 | struct list_head *list; | |
980d4f17 | 1350 | |
5ab6c9af HV |
1351 | while (!list_empty(&vivi_devlist)) { |
1352 | list = vivi_devlist.next; | |
1353 | list_del(list); | |
1354 | dev = list_entry(list, struct vivi_dev, vivi_devlist); | |
1355 | ||
38c7c036 LP |
1356 | v4l2_info(&dev->v4l2_dev, "unregistering %s\n", |
1357 | video_device_node_name(dev->vfd)); | |
5ab6c9af HV |
1358 | video_unregister_device(dev->vfd); |
1359 | v4l2_device_unregister(&dev->v4l2_dev); | |
7e996afa | 1360 | v4l2_ctrl_handler_free(&dev->ctrl_handler); |
5ab6c9af HV |
1361 | kfree(dev); |
1362 | } | |
1363 | ||
1364 | return 0; | |
1365 | } | |
1366 | ||
c41ee24b | 1367 | static int __init vivi_create_instance(int inst) |
1e6dd65e | 1368 | { |
1e6dd65e | 1369 | struct vivi_dev *dev; |
f905c442 | 1370 | struct video_device *vfd; |
7e996afa | 1371 | struct v4l2_ctrl_handler *hdl; |
e007a325 | 1372 | struct vb2_queue *q; |
730947bc | 1373 | int ret; |
1e6dd65e | 1374 | |
5ab6c9af HV |
1375 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
1376 | if (!dev) | |
1377 | return -ENOMEM; | |
980d4f17 | 1378 | |
5ab6c9af | 1379 | snprintf(dev->v4l2_dev.name, sizeof(dev->v4l2_dev.name), |
c41ee24b | 1380 | "%s-%03d", VIVI_MODULE_NAME, inst); |
5ab6c9af HV |
1381 | ret = v4l2_device_register(NULL, &dev->v4l2_dev); |
1382 | if (ret) | |
1383 | goto free_dev; | |
1e6dd65e | 1384 | |
730947bc HV |
1385 | dev->fmt = &formats[0]; |
1386 | dev->width = 640; | |
1387 | dev->height = 480; | |
3d51dca2 | 1388 | dev->pixelsize = dev->fmt->depth / 8; |
7e996afa HV |
1389 | hdl = &dev->ctrl_handler; |
1390 | v4l2_ctrl_handler_init(hdl, 11); | |
1391 | dev->volume = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops, | |
1392 | V4L2_CID_AUDIO_VOLUME, 0, 255, 1, 200); | |
1393 | dev->brightness = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops, | |
1394 | V4L2_CID_BRIGHTNESS, 0, 255, 1, 127); | |
1395 | dev->contrast = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops, | |
1396 | V4L2_CID_CONTRAST, 0, 255, 1, 16); | |
1397 | dev->saturation = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops, | |
1398 | V4L2_CID_SATURATION, 0, 255, 1, 127); | |
1399 | dev->hue = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops, | |
1400 | V4L2_CID_HUE, -128, 127, 1, 0); | |
a1c894fb HV |
1401 | dev->autogain = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops, |
1402 | V4L2_CID_AUTOGAIN, 0, 1, 1, 1); | |
1403 | dev->gain = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops, | |
1404 | V4L2_CID_GAIN, 0, 255, 1, 100); | |
7088f4df HV |
1405 | dev->alpha = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops, |
1406 | V4L2_CID_ALPHA_COMPONENT, 0, 255, 1, 0); | |
7e996afa HV |
1407 | dev->button = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_button, NULL); |
1408 | dev->int32 = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_int32, NULL); | |
1409 | dev->int64 = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_int64, NULL); | |
1410 | dev->boolean = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_boolean, NULL); | |
1411 | dev->menu = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_menu, NULL); | |
1412 | dev->string = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_string, NULL); | |
b6d17a56 | 1413 | dev->bitmask = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_bitmask, NULL); |
c520331a | 1414 | dev->int_menu = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_int_menu, NULL); |
7e996afa HV |
1415 | if (hdl->error) { |
1416 | ret = hdl->error; | |
1417 | goto unreg_dev; | |
1418 | } | |
a1c894fb | 1419 | v4l2_ctrl_auto_cluster(2, &dev->autogain, 0, true); |
7e996afa | 1420 | dev->v4l2_dev.ctrl_handler = hdl; |
730947bc | 1421 | |
fedc6c81 HV |
1422 | /* initialize locks */ |
1423 | spin_lock_init(&dev->slock); | |
fedc6c81 | 1424 | |
e007a325 PO |
1425 | /* initialize queue */ |
1426 | q = &dev->vb_vidq; | |
1427 | memset(q, 0, sizeof(dev->vb_vidq)); | |
1428 | q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1429 | q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; | |
1430 | q->drv_priv = dev; | |
1431 | q->buf_struct_size = sizeof(struct vivi_buffer); | |
1432 | q->ops = &vivi_video_qops; | |
1433 | q->mem_ops = &vb2_vmalloc_memops; | |
1434 | ||
1435 | vb2_queue_init(q); | |
1436 | ||
1437 | mutex_init(&dev->mutex); | |
730947bc | 1438 | |
5ab6c9af HV |
1439 | /* init video dma queues */ |
1440 | INIT_LIST_HEAD(&dev->vidq.active); | |
1441 | init_waitqueue_head(&dev->vidq.wq); | |
1e6dd65e | 1442 | |
5ab6c9af HV |
1443 | ret = -ENOMEM; |
1444 | vfd = video_device_alloc(); | |
1445 | if (!vfd) | |
1446 | goto unreg_dev; | |
55712ff7 | 1447 | |
5ab6c9af | 1448 | *vfd = vivi_template; |
c285addb | 1449 | vfd->debug = debug; |
730947bc | 1450 | vfd->v4l2_dev = &dev->v4l2_dev; |
b1a873a3 | 1451 | set_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags); |
e007a325 PO |
1452 | |
1453 | /* | |
1454 | * Provide a mutex to v4l2 core. It will be used to protect | |
1455 | * all fops and v4l2 ioctls. | |
1456 | */ | |
fedc6c81 | 1457 | vfd->lock = &dev->mutex; |
55712ff7 | 1458 | |
5ab6c9af HV |
1459 | ret = video_register_device(vfd, VFL_TYPE_GRABBER, video_nr); |
1460 | if (ret < 0) | |
1461 | goto rel_vdev; | |
980d4f17 | 1462 | |
5ab6c9af | 1463 | video_set_drvdata(vfd, dev); |
980d4f17 | 1464 | |
5ab6c9af HV |
1465 | /* Now that everything is fine, let's add it to device list */ |
1466 | list_add_tail(&dev->vivi_devlist, &vivi_devlist); | |
980d4f17 | 1467 | |
7de0b873 | 1468 | if (video_nr != -1) |
5ab6c9af | 1469 | video_nr++; |
f905c442 | 1470 | |
5ab6c9af | 1471 | dev->vfd = vfd; |
38c7c036 LP |
1472 | v4l2_info(&dev->v4l2_dev, "V4L2 device registered as %s\n", |
1473 | video_device_node_name(vfd)); | |
5ab6c9af HV |
1474 | return 0; |
1475 | ||
1476 | rel_vdev: | |
1477 | video_device_release(vfd); | |
1478 | unreg_dev: | |
7e996afa | 1479 | v4l2_ctrl_handler_free(hdl); |
5ab6c9af HV |
1480 | v4l2_device_unregister(&dev->v4l2_dev); |
1481 | free_dev: | |
1482 | kfree(dev); | |
1483 | return ret; | |
1484 | } | |
f905c442 | 1485 | |
5ab6c9af HV |
1486 | /* This routine allocates from 1 to n_devs virtual drivers. |
1487 | ||
1488 | The real maximum number of virtual drivers will depend on how many drivers | |
1489 | will succeed. This is limited to the maximum number of devices that | |
1490 | videodev supports, which is equal to VIDEO_NUM_DEVICES. | |
1491 | */ | |
1492 | static int __init vivi_init(void) | |
1493 | { | |
730947bc | 1494 | const struct font_desc *font = find_font("VGA8x16"); |
9185cbfc | 1495 | int ret = 0, i; |
5ab6c9af | 1496 | |
730947bc HV |
1497 | if (font == NULL) { |
1498 | printk(KERN_ERR "vivi: could not find font\n"); | |
1499 | return -ENODEV; | |
1500 | } | |
1501 | font8x16 = font->data; | |
1502 | ||
5ab6c9af HV |
1503 | if (n_devs <= 0) |
1504 | n_devs = 1; | |
1505 | ||
1506 | for (i = 0; i < n_devs; i++) { | |
1507 | ret = vivi_create_instance(i); | |
1508 | if (ret) { | |
1509 | /* If some instantiations succeeded, keep driver */ | |
1510 | if (i) | |
1511 | ret = 0; | |
1512 | break; | |
1513 | } | |
55712ff7 | 1514 | } |
f905c442 | 1515 | |
55712ff7 | 1516 | if (ret < 0) { |
730947bc | 1517 | printk(KERN_ERR "vivi: error %d while loading driver\n", ret); |
5ab6c9af HV |
1518 | return ret; |
1519 | } | |
1520 | ||
1521 | printk(KERN_INFO "Video Technology Magazine Virtual Video " | |
1990d50b MCC |
1522 | "Capture Board ver %s successfully loaded.\n", |
1523 | VIVI_VERSION); | |
980d4f17 | 1524 | |
5ab6c9af HV |
1525 | /* n_devs will reflect the actual number of allocated devices */ |
1526 | n_devs = i; | |
980d4f17 | 1527 | |
1e6dd65e MCC |
1528 | return ret; |
1529 | } | |
1530 | ||
1531 | static void __exit vivi_exit(void) | |
1532 | { | |
55712ff7 | 1533 | vivi_release(); |
1e6dd65e MCC |
1534 | } |
1535 | ||
1536 | module_init(vivi_init); | |
1537 | module_exit(vivi_exit); |