1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Copyright (C) 2010-2013 Bluecherry, LLC <https://www.bluecherrydvr.com> |
4 | * |
5 | * Original author: |
6 | * Ben Collins <bcollins@ubuntu.com> |
7 | * |
8 | * Additional work by: |
9 | * John Brooks <john.brooks@bluecherry.net> |
10 | */ |
11 | |
12 | #include <linux/kernel.h> |
13 | #include <linux/module.h> |
14 | #include <linux/kthread.h> |
15 | #include <linux/freezer.h> |
16 | |
17 | #include <media/v4l2-ioctl.h> |
18 | #include <media/v4l2-common.h> |
19 | #include <media/v4l2-event.h> |
20 | #include <media/videobuf2-v4l2.h> |
21 | #include <media/videobuf2-dma-contig.h> |
22 | |
23 | #include "solo6x10.h" |
24 | #include "solo6x10-tw28.h" |
25 | |
26 | /* Image size is two fields, SOLO_HW_BPL is one horizontal line in hardware */ |
27 | #define SOLO_HW_BPL 2048 |
28 | #define solo_vlines(__solo) (__solo->video_vsize * 2) |
29 | #define solo_image_size(__solo) (solo_bytesperline(__solo) * \ |
30 | solo_vlines(__solo)) |
31 | #define solo_bytesperline(__solo) (__solo->video_hsize * 2) |
32 | |
33 | #define MIN_VID_BUFFERS 2 |
34 | |
35 | static inline void erase_on(struct solo_dev *solo_dev) |
36 | { |
37 | solo_reg_write(solo_dev, SOLO_VO_DISP_ERASE, SOLO_VO_DISP_ERASE_ON); |
38 | solo_dev->erasing = 1; |
39 | solo_dev->frame_blank = 0; |
40 | } |
41 | |
42 | static inline int erase_off(struct solo_dev *solo_dev) |
43 | { |
44 | if (!solo_dev->erasing) |
45 | return 0; |
46 | |
47 | /* First time around, assert erase off */ |
48 | if (!solo_dev->frame_blank) |
49 | solo_reg_write(solo_dev, SOLO_VO_DISP_ERASE, data: 0); |
50 | /* Keep the erasing flag on for 8 frames minimum */ |
51 | if (solo_dev->frame_blank++ >= 8) |
52 | solo_dev->erasing = 0; |
53 | |
54 | return 1; |
55 | } |
56 | |
57 | void solo_video_in_isr(struct solo_dev *solo_dev) |
58 | { |
59 | wake_up_interruptible_all(&solo_dev->disp_thread_wait); |
60 | } |
61 | |
62 | static void solo_win_setup(struct solo_dev *solo_dev, u8 ch, |
63 | int sx, int sy, int ex, int ey, int scale) |
64 | { |
65 | if (ch >= solo_dev->nr_chans) |
66 | return; |
67 | |
68 | /* Here, we just keep window/channel the same */ |
69 | solo_reg_write(solo_dev, SOLO_VI_WIN_CTRL0(ch), |
70 | SOLO_VI_WIN_CHANNEL(ch) | |
71 | SOLO_VI_WIN_SX(sx) | |
72 | SOLO_VI_WIN_EX(ex) | |
73 | SOLO_VI_WIN_SCALE(scale)); |
74 | |
75 | solo_reg_write(solo_dev, SOLO_VI_WIN_CTRL1(ch), |
76 | SOLO_VI_WIN_SY(sy) | |
77 | SOLO_VI_WIN_EY(ey)); |
78 | } |
79 | |
80 | static int solo_v4l2_ch_ext_4up(struct solo_dev *solo_dev, u8 idx, int on) |
81 | { |
82 | u8 ch = idx * 4; |
83 | |
84 | if (ch >= solo_dev->nr_chans) |
85 | return -EINVAL; |
86 | |
87 | if (!on) { |
88 | u8 i; |
89 | |
90 | for (i = ch; i < ch + 4; i++) |
91 | solo_win_setup(solo_dev, ch: i, sx: solo_dev->video_hsize, |
92 | solo_vlines(solo_dev), |
93 | ex: solo_dev->video_hsize, |
94 | solo_vlines(solo_dev), scale: 0); |
95 | return 0; |
96 | } |
97 | |
98 | /* Row 1 */ |
99 | solo_win_setup(solo_dev, ch, sx: 0, sy: 0, ex: solo_dev->video_hsize / 2, |
100 | solo_vlines(solo_dev) / 2, scale: 3); |
101 | solo_win_setup(solo_dev, ch: ch + 1, sx: solo_dev->video_hsize / 2, sy: 0, |
102 | ex: solo_dev->video_hsize, solo_vlines(solo_dev) / 2, scale: 3); |
103 | /* Row 2 */ |
104 | solo_win_setup(solo_dev, ch: ch + 2, sx: 0, solo_vlines(solo_dev) / 2, |
105 | ex: solo_dev->video_hsize / 2, solo_vlines(solo_dev), scale: 3); |
106 | solo_win_setup(solo_dev, ch: ch + 3, sx: solo_dev->video_hsize / 2, |
107 | solo_vlines(solo_dev) / 2, ex: solo_dev->video_hsize, |
108 | solo_vlines(solo_dev), scale: 3); |
109 | |
110 | return 0; |
111 | } |
112 | |
113 | static int solo_v4l2_ch_ext_16up(struct solo_dev *solo_dev, int on) |
114 | { |
115 | int sy, ysize, hsize, i; |
116 | |
117 | if (!on) { |
118 | for (i = 0; i < 16; i++) |
119 | solo_win_setup(solo_dev, ch: i, sx: solo_dev->video_hsize, |
120 | solo_vlines(solo_dev), |
121 | ex: solo_dev->video_hsize, |
122 | solo_vlines(solo_dev), scale: 0); |
123 | return 0; |
124 | } |
125 | |
126 | ysize = solo_vlines(solo_dev) / 4; |
127 | hsize = solo_dev->video_hsize / 4; |
128 | |
129 | for (sy = 0, i = 0; i < 4; i++, sy += ysize) { |
130 | solo_win_setup(solo_dev, ch: i * 4, sx: 0, sy, ex: hsize, |
131 | ey: sy + ysize, scale: 5); |
132 | solo_win_setup(solo_dev, ch: (i * 4) + 1, sx: hsize, sy, |
133 | ex: hsize * 2, ey: sy + ysize, scale: 5); |
134 | solo_win_setup(solo_dev, ch: (i * 4) + 2, sx: hsize * 2, sy, |
135 | ex: hsize * 3, ey: sy + ysize, scale: 5); |
136 | solo_win_setup(solo_dev, ch: (i * 4) + 3, sx: hsize * 3, sy, |
137 | ex: solo_dev->video_hsize, ey: sy + ysize, scale: 5); |
138 | } |
139 | |
140 | return 0; |
141 | } |
142 | |
143 | static int solo_v4l2_ch(struct solo_dev *solo_dev, u8 ch, int on) |
144 | { |
145 | u8 ext_ch; |
146 | |
147 | if (ch < solo_dev->nr_chans) { |
148 | solo_win_setup(solo_dev, ch, sx: on ? 0 : solo_dev->video_hsize, |
149 | sy: on ? 0 : solo_vlines(solo_dev), |
150 | ex: solo_dev->video_hsize, solo_vlines(solo_dev), |
151 | scale: on ? 1 : 0); |
152 | return 0; |
153 | } |
154 | |
155 | if (ch >= solo_dev->nr_chans + solo_dev->nr_ext) |
156 | return -EINVAL; |
157 | |
158 | ext_ch = ch - solo_dev->nr_chans; |
159 | |
160 | /* 4up's first */ |
161 | if (ext_ch < 4) |
162 | return solo_v4l2_ch_ext_4up(solo_dev, idx: ext_ch, on); |
163 | |
164 | /* Remaining case is 16up for 16-port */ |
165 | return solo_v4l2_ch_ext_16up(solo_dev, on); |
166 | } |
167 | |
168 | static int solo_v4l2_set_ch(struct solo_dev *solo_dev, u8 ch) |
169 | { |
170 | if (ch >= solo_dev->nr_chans + solo_dev->nr_ext) |
171 | return -EINVAL; |
172 | |
173 | erase_on(solo_dev); |
174 | |
175 | solo_v4l2_ch(solo_dev, ch: solo_dev->cur_disp_ch, on: 0); |
176 | solo_v4l2_ch(solo_dev, ch, on: 1); |
177 | |
178 | solo_dev->cur_disp_ch = ch; |
179 | |
180 | return 0; |
181 | } |
182 | |
183 | static void solo_fillbuf(struct solo_dev *solo_dev, |
184 | struct vb2_buffer *vb) |
185 | { |
186 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
187 | dma_addr_t addr; |
188 | unsigned int fdma_addr; |
189 | int error = -1; |
190 | int i; |
191 | |
192 | addr = vb2_dma_contig_plane_dma_addr(vb, plane_no: 0); |
193 | if (!addr) |
194 | goto finish_buf; |
195 | |
196 | if (erase_off(solo_dev)) { |
197 | void *p = vb2_plane_vaddr(vb, plane_no: 0); |
198 | int image_size = solo_image_size(solo_dev); |
199 | |
200 | for (i = 0; i < image_size; i += 2) { |
201 | ((u8 *)p)[i] = 0x80; |
202 | ((u8 *)p)[i + 1] = 0x00; |
203 | } |
204 | error = 0; |
205 | } else { |
206 | fdma_addr = SOLO_DISP_EXT_ADDR + (solo_dev->old_write * |
207 | (SOLO_HW_BPL * solo_vlines(solo_dev))); |
208 | |
209 | error = solo_p2m_dma_t(solo_dev, wr: 0, dma_addr: addr, ext_addr: fdma_addr, |
210 | solo_bytesperline(solo_dev), |
211 | solo_vlines(solo_dev), SOLO_HW_BPL); |
212 | } |
213 | |
214 | finish_buf: |
215 | if (!error) { |
216 | vb2_set_plane_payload(vb, plane_no: 0, |
217 | solo_vlines(solo_dev) * solo_bytesperline(solo_dev)); |
218 | vbuf->sequence = solo_dev->sequence++; |
219 | vb->timestamp = ktime_get_ns(); |
220 | } |
221 | |
222 | vb2_buffer_done(vb, state: error ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE); |
223 | } |
224 | |
225 | static void solo_thread_try(struct solo_dev *solo_dev) |
226 | { |
227 | struct solo_vb2_buf *vb; |
228 | |
229 | /* Only "break" from this loop if slock is held, otherwise |
230 | * just return. */ |
231 | for (;;) { |
232 | unsigned int cur_write; |
233 | |
234 | cur_write = SOLO_VI_STATUS0_PAGE( |
235 | solo_reg_read(solo_dev, SOLO_VI_STATUS0)); |
236 | if (cur_write == solo_dev->old_write) |
237 | return; |
238 | |
239 | spin_lock(lock: &solo_dev->slock); |
240 | |
241 | if (list_empty(head: &solo_dev->vidq_active)) |
242 | break; |
243 | |
244 | vb = list_first_entry(&solo_dev->vidq_active, struct solo_vb2_buf, |
245 | list); |
246 | |
247 | solo_dev->old_write = cur_write; |
248 | list_del(entry: &vb->list); |
249 | |
250 | spin_unlock(lock: &solo_dev->slock); |
251 | |
252 | solo_fillbuf(solo_dev, vb: &vb->vb.vb2_buf); |
253 | } |
254 | |
255 | assert_spin_locked(&solo_dev->slock); |
256 | spin_unlock(lock: &solo_dev->slock); |
257 | } |
258 | |
259 | static int solo_thread(void *data) |
260 | { |
261 | struct solo_dev *solo_dev = data; |
262 | DECLARE_WAITQUEUE(wait, current); |
263 | |
264 | set_freezable(); |
265 | add_wait_queue(wq_head: &solo_dev->disp_thread_wait, wq_entry: &wait); |
266 | |
267 | for (;;) { |
268 | long timeout = schedule_timeout_interruptible(HZ); |
269 | |
270 | if (timeout == -ERESTARTSYS || kthread_should_stop()) |
271 | break; |
272 | solo_thread_try(solo_dev); |
273 | try_to_freeze(); |
274 | } |
275 | |
276 | remove_wait_queue(wq_head: &solo_dev->disp_thread_wait, wq_entry: &wait); |
277 | |
278 | return 0; |
279 | } |
280 | |
281 | static int solo_start_thread(struct solo_dev *solo_dev) |
282 | { |
283 | int ret = 0; |
284 | |
285 | solo_dev->kthread = kthread_run(solo_thread, solo_dev, SOLO6X10_NAME "_disp" ); |
286 | |
287 | if (IS_ERR(ptr: solo_dev->kthread)) { |
288 | ret = PTR_ERR(ptr: solo_dev->kthread); |
289 | solo_dev->kthread = NULL; |
290 | return ret; |
291 | } |
292 | solo_irq_on(dev: solo_dev, SOLO_IRQ_VIDEO_IN); |
293 | |
294 | return ret; |
295 | } |
296 | |
297 | static void solo_stop_thread(struct solo_dev *solo_dev) |
298 | { |
299 | if (!solo_dev->kthread) |
300 | return; |
301 | |
302 | solo_irq_off(dev: solo_dev, SOLO_IRQ_VIDEO_IN); |
303 | kthread_stop(k: solo_dev->kthread); |
304 | solo_dev->kthread = NULL; |
305 | } |
306 | |
307 | static int solo_queue_setup(struct vb2_queue *q, |
308 | unsigned int *num_buffers, unsigned int *num_planes, |
309 | unsigned int sizes[], struct device *alloc_devs[]) |
310 | { |
311 | struct solo_dev *solo_dev = vb2_get_drv_priv(q); |
312 | |
313 | sizes[0] = solo_image_size(solo_dev); |
314 | *num_planes = 1; |
315 | |
316 | if (*num_buffers < MIN_VID_BUFFERS) |
317 | *num_buffers = MIN_VID_BUFFERS; |
318 | |
319 | return 0; |
320 | } |
321 | |
322 | static int solo_start_streaming(struct vb2_queue *q, unsigned int count) |
323 | { |
324 | struct solo_dev *solo_dev = vb2_get_drv_priv(q); |
325 | |
326 | solo_dev->sequence = 0; |
327 | return solo_start_thread(solo_dev); |
328 | } |
329 | |
330 | static void solo_stop_streaming(struct vb2_queue *q) |
331 | { |
332 | struct solo_dev *solo_dev = vb2_get_drv_priv(q); |
333 | |
334 | solo_stop_thread(solo_dev); |
335 | |
336 | spin_lock(lock: &solo_dev->slock); |
337 | while (!list_empty(head: &solo_dev->vidq_active)) { |
338 | struct solo_vb2_buf *buf = list_entry( |
339 | solo_dev->vidq_active.next, |
340 | struct solo_vb2_buf, list); |
341 | |
342 | list_del(entry: &buf->list); |
343 | vb2_buffer_done(vb: &buf->vb.vb2_buf, state: VB2_BUF_STATE_ERROR); |
344 | } |
345 | spin_unlock(lock: &solo_dev->slock); |
346 | INIT_LIST_HEAD(list: &solo_dev->vidq_active); |
347 | } |
348 | |
349 | static void solo_buf_queue(struct vb2_buffer *vb) |
350 | { |
351 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
352 | struct vb2_queue *vq = vb->vb2_queue; |
353 | struct solo_dev *solo_dev = vb2_get_drv_priv(q: vq); |
354 | struct solo_vb2_buf *solo_vb = |
355 | container_of(vbuf, struct solo_vb2_buf, vb); |
356 | |
357 | spin_lock(lock: &solo_dev->slock); |
358 | list_add_tail(new: &solo_vb->list, head: &solo_dev->vidq_active); |
359 | spin_unlock(lock: &solo_dev->slock); |
360 | wake_up_interruptible(&solo_dev->disp_thread_wait); |
361 | } |
362 | |
363 | static const struct vb2_ops solo_video_qops = { |
364 | .queue_setup = solo_queue_setup, |
365 | .buf_queue = solo_buf_queue, |
366 | .start_streaming = solo_start_streaming, |
367 | .stop_streaming = solo_stop_streaming, |
368 | .wait_prepare = vb2_ops_wait_prepare, |
369 | .wait_finish = vb2_ops_wait_finish, |
370 | }; |
371 | |
372 | static int solo_querycap(struct file *file, void *priv, |
373 | struct v4l2_capability *cap) |
374 | { |
375 | strscpy(cap->driver, SOLO6X10_NAME, sizeof(cap->driver)); |
376 | strscpy(cap->card, "Softlogic 6x10" , sizeof(cap->card)); |
377 | return 0; |
378 | } |
379 | |
380 | static int solo_enum_ext_input(struct solo_dev *solo_dev, |
381 | struct v4l2_input *input) |
382 | { |
383 | int ext = input->index - solo_dev->nr_chans; |
384 | unsigned int nup, first; |
385 | |
386 | if (ext >= solo_dev->nr_ext) |
387 | return -EINVAL; |
388 | |
389 | nup = (ext == 4) ? 16 : 4; |
390 | first = (ext & 3) << 2; /* first channel in the n-up */ |
391 | snprintf(buf: input->name, size: sizeof(input->name), |
392 | fmt: "Multi %d-up (cameras %d-%d)" , |
393 | nup, first + 1, first + nup); |
394 | /* Possible outputs: |
395 | * Multi 4-up (cameras 1-4) |
396 | * Multi 4-up (cameras 5-8) |
397 | * Multi 4-up (cameras 9-12) |
398 | * Multi 4-up (cameras 13-16) |
399 | * Multi 16-up (cameras 1-16) |
400 | */ |
401 | return 0; |
402 | } |
403 | |
404 | static int solo_enum_input(struct file *file, void *priv, |
405 | struct v4l2_input *input) |
406 | { |
407 | struct solo_dev *solo_dev = video_drvdata(file); |
408 | |
409 | if (input->index >= solo_dev->nr_chans) { |
410 | int ret = solo_enum_ext_input(solo_dev, input); |
411 | |
412 | if (ret < 0) |
413 | return ret; |
414 | } else { |
415 | snprintf(buf: input->name, size: sizeof(input->name), fmt: "Camera %d" , |
416 | input->index + 1); |
417 | |
418 | /* We can only check this for normal inputs */ |
419 | if (!tw28_get_video_status(solo_dev, ch: input->index)) |
420 | input->status = V4L2_IN_ST_NO_SIGNAL; |
421 | } |
422 | |
423 | input->type = V4L2_INPUT_TYPE_CAMERA; |
424 | input->std = solo_dev->vfd->tvnorms; |
425 | return 0; |
426 | } |
427 | |
428 | static int solo_set_input(struct file *file, void *priv, unsigned int index) |
429 | { |
430 | struct solo_dev *solo_dev = video_drvdata(file); |
431 | int ret = solo_v4l2_set_ch(solo_dev, ch: index); |
432 | |
433 | if (!ret) { |
434 | while (erase_off(solo_dev)) |
435 | /* Do nothing */; |
436 | } |
437 | |
438 | return ret; |
439 | } |
440 | |
441 | static int solo_get_input(struct file *file, void *priv, unsigned int *index) |
442 | { |
443 | struct solo_dev *solo_dev = video_drvdata(file); |
444 | |
445 | *index = solo_dev->cur_disp_ch; |
446 | |
447 | return 0; |
448 | } |
449 | |
450 | static int solo_enum_fmt_cap(struct file *file, void *priv, |
451 | struct v4l2_fmtdesc *f) |
452 | { |
453 | if (f->index) |
454 | return -EINVAL; |
455 | |
456 | f->pixelformat = V4L2_PIX_FMT_UYVY; |
457 | return 0; |
458 | } |
459 | |
460 | static int solo_try_fmt_cap(struct file *file, void *priv, |
461 | struct v4l2_format *f) |
462 | { |
463 | struct solo_dev *solo_dev = video_drvdata(file); |
464 | struct v4l2_pix_format *pix = &f->fmt.pix; |
465 | int image_size = solo_image_size(solo_dev); |
466 | |
467 | if (pix->pixelformat != V4L2_PIX_FMT_UYVY) |
468 | return -EINVAL; |
469 | |
470 | pix->width = solo_dev->video_hsize; |
471 | pix->height = solo_vlines(solo_dev); |
472 | pix->sizeimage = image_size; |
473 | pix->field = V4L2_FIELD_INTERLACED; |
474 | pix->pixelformat = V4L2_PIX_FMT_UYVY; |
475 | pix->colorspace = V4L2_COLORSPACE_SMPTE170M; |
476 | return 0; |
477 | } |
478 | |
479 | static int solo_set_fmt_cap(struct file *file, void *priv, |
480 | struct v4l2_format *f) |
481 | { |
482 | struct solo_dev *solo_dev = video_drvdata(file); |
483 | |
484 | if (vb2_is_busy(q: &solo_dev->vidq)) |
485 | return -EBUSY; |
486 | |
487 | /* For right now, if it doesn't match our running config, |
488 | * then fail */ |
489 | return solo_try_fmt_cap(file, priv, f); |
490 | } |
491 | |
492 | static int solo_get_fmt_cap(struct file *file, void *priv, |
493 | struct v4l2_format *f) |
494 | { |
495 | struct solo_dev *solo_dev = video_drvdata(file); |
496 | struct v4l2_pix_format *pix = &f->fmt.pix; |
497 | |
498 | pix->width = solo_dev->video_hsize; |
499 | pix->height = solo_vlines(solo_dev); |
500 | pix->pixelformat = V4L2_PIX_FMT_UYVY; |
501 | pix->field = V4L2_FIELD_INTERLACED; |
502 | pix->sizeimage = solo_image_size(solo_dev); |
503 | pix->colorspace = V4L2_COLORSPACE_SMPTE170M; |
504 | pix->bytesperline = solo_bytesperline(solo_dev); |
505 | |
506 | return 0; |
507 | } |
508 | |
509 | static int solo_g_std(struct file *file, void *priv, v4l2_std_id *i) |
510 | { |
511 | struct solo_dev *solo_dev = video_drvdata(file); |
512 | |
513 | if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) |
514 | *i = V4L2_STD_NTSC_M; |
515 | else |
516 | *i = V4L2_STD_PAL; |
517 | return 0; |
518 | } |
519 | |
520 | int solo_set_video_type(struct solo_dev *solo_dev, bool is_50hz) |
521 | { |
522 | int i; |
523 | |
524 | /* Make sure all video nodes are idle */ |
525 | if (vb2_is_busy(q: &solo_dev->vidq)) |
526 | return -EBUSY; |
527 | for (i = 0; i < solo_dev->nr_chans; i++) |
528 | if (vb2_is_busy(q: &solo_dev->v4l2_enc[i]->vidq)) |
529 | return -EBUSY; |
530 | solo_dev->video_type = is_50hz ? SOLO_VO_FMT_TYPE_PAL : |
531 | SOLO_VO_FMT_TYPE_NTSC; |
532 | /* Reconfigure for the new standard */ |
533 | solo_disp_init(solo_dev); |
534 | solo_enc_init(solo_dev); |
535 | solo_tw28_init(solo_dev); |
536 | for (i = 0; i < solo_dev->nr_chans; i++) |
537 | solo_update_mode(solo_enc: solo_dev->v4l2_enc[i]); |
538 | return solo_v4l2_set_ch(solo_dev, ch: solo_dev->cur_disp_ch); |
539 | } |
540 | |
541 | static int solo_s_std(struct file *file, void *priv, v4l2_std_id std) |
542 | { |
543 | struct solo_dev *solo_dev = video_drvdata(file); |
544 | |
545 | return solo_set_video_type(solo_dev, is_50hz: std & V4L2_STD_625_50); |
546 | } |
547 | |
548 | static int solo_s_ctrl(struct v4l2_ctrl *ctrl) |
549 | { |
550 | struct solo_dev *solo_dev = |
551 | container_of(ctrl->handler, struct solo_dev, disp_hdl); |
552 | |
553 | switch (ctrl->id) { |
554 | case V4L2_CID_MOTION_TRACE: |
555 | if (ctrl->val) { |
556 | solo_reg_write(solo_dev, SOLO_VI_MOTION_BORDER, |
557 | SOLO_VI_MOTION_Y_ADD | |
558 | SOLO_VI_MOTION_Y_VALUE(0x20) | |
559 | SOLO_VI_MOTION_CB_VALUE(0x10) | |
560 | SOLO_VI_MOTION_CR_VALUE(0x10)); |
561 | solo_reg_write(solo_dev, SOLO_VI_MOTION_BAR, |
562 | SOLO_VI_MOTION_CR_ADD | |
563 | SOLO_VI_MOTION_Y_VALUE(0x10) | |
564 | SOLO_VI_MOTION_CB_VALUE(0x80) | |
565 | SOLO_VI_MOTION_CR_VALUE(0x10)); |
566 | } else { |
567 | solo_reg_write(solo_dev, SOLO_VI_MOTION_BORDER, data: 0); |
568 | solo_reg_write(solo_dev, SOLO_VI_MOTION_BAR, data: 0); |
569 | } |
570 | return 0; |
571 | default: |
572 | break; |
573 | } |
574 | return -EINVAL; |
575 | } |
576 | |
577 | static const struct v4l2_file_operations solo_v4l2_fops = { |
578 | .owner = THIS_MODULE, |
579 | .open = v4l2_fh_open, |
580 | .release = vb2_fop_release, |
581 | .read = vb2_fop_read, |
582 | .poll = vb2_fop_poll, |
583 | .mmap = vb2_fop_mmap, |
584 | .unlocked_ioctl = video_ioctl2, |
585 | }; |
586 | |
587 | static const struct v4l2_ioctl_ops solo_v4l2_ioctl_ops = { |
588 | .vidioc_querycap = solo_querycap, |
589 | .vidioc_s_std = solo_s_std, |
590 | .vidioc_g_std = solo_g_std, |
591 | /* Input callbacks */ |
592 | .vidioc_enum_input = solo_enum_input, |
593 | .vidioc_s_input = solo_set_input, |
594 | .vidioc_g_input = solo_get_input, |
595 | /* Video capture format callbacks */ |
596 | .vidioc_enum_fmt_vid_cap = solo_enum_fmt_cap, |
597 | .vidioc_try_fmt_vid_cap = solo_try_fmt_cap, |
598 | .vidioc_s_fmt_vid_cap = solo_set_fmt_cap, |
599 | .vidioc_g_fmt_vid_cap = solo_get_fmt_cap, |
600 | /* Streaming I/O */ |
601 | .vidioc_reqbufs = vb2_ioctl_reqbufs, |
602 | .vidioc_querybuf = vb2_ioctl_querybuf, |
603 | .vidioc_qbuf = vb2_ioctl_qbuf, |
604 | .vidioc_dqbuf = vb2_ioctl_dqbuf, |
605 | .vidioc_streamon = vb2_ioctl_streamon, |
606 | .vidioc_streamoff = vb2_ioctl_streamoff, |
607 | /* Logging and events */ |
608 | .vidioc_log_status = v4l2_ctrl_log_status, |
609 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, |
610 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, |
611 | }; |
612 | |
613 | static const struct video_device solo_v4l2_template = { |
614 | .name = SOLO6X10_NAME, |
615 | .fops = &solo_v4l2_fops, |
616 | .ioctl_ops = &solo_v4l2_ioctl_ops, |
617 | .minor = -1, |
618 | .release = video_device_release, |
619 | .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL, |
620 | .device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | |
621 | V4L2_CAP_STREAMING, |
622 | }; |
623 | |
624 | static const struct v4l2_ctrl_ops solo_ctrl_ops = { |
625 | .s_ctrl = solo_s_ctrl, |
626 | }; |
627 | |
628 | static const struct v4l2_ctrl_config solo_motion_trace_ctrl = { |
629 | .ops = &solo_ctrl_ops, |
630 | .id = V4L2_CID_MOTION_TRACE, |
631 | .name = "Motion Detection Trace" , |
632 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
633 | .max = 1, |
634 | .step = 1, |
635 | }; |
636 | |
637 | int solo_v4l2_init(struct solo_dev *solo_dev, unsigned nr) |
638 | { |
639 | int ret; |
640 | int i; |
641 | |
642 | init_waitqueue_head(&solo_dev->disp_thread_wait); |
643 | spin_lock_init(&solo_dev->slock); |
644 | mutex_init(&solo_dev->lock); |
645 | INIT_LIST_HEAD(list: &solo_dev->vidq_active); |
646 | |
647 | solo_dev->vfd = video_device_alloc(); |
648 | if (!solo_dev->vfd) |
649 | return -ENOMEM; |
650 | |
651 | *solo_dev->vfd = solo_v4l2_template; |
652 | solo_dev->vfd->v4l2_dev = &solo_dev->v4l2_dev; |
653 | solo_dev->vfd->queue = &solo_dev->vidq; |
654 | solo_dev->vfd->lock = &solo_dev->lock; |
655 | v4l2_ctrl_handler_init(&solo_dev->disp_hdl, 1); |
656 | v4l2_ctrl_new_custom(hdl: &solo_dev->disp_hdl, cfg: &solo_motion_trace_ctrl, NULL); |
657 | if (solo_dev->disp_hdl.error) { |
658 | ret = solo_dev->disp_hdl.error; |
659 | goto fail; |
660 | } |
661 | solo_dev->vfd->ctrl_handler = &solo_dev->disp_hdl; |
662 | |
663 | video_set_drvdata(vdev: solo_dev->vfd, data: solo_dev); |
664 | |
665 | solo_dev->vidq.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
666 | solo_dev->vidq.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; |
667 | solo_dev->vidq.ops = &solo_video_qops; |
668 | solo_dev->vidq.mem_ops = &vb2_dma_contig_memops; |
669 | solo_dev->vidq.drv_priv = solo_dev; |
670 | solo_dev->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
671 | solo_dev->vidq.gfp_flags = __GFP_DMA32 | __GFP_KSWAPD_RECLAIM; |
672 | solo_dev->vidq.buf_struct_size = sizeof(struct solo_vb2_buf); |
673 | solo_dev->vidq.lock = &solo_dev->lock; |
674 | solo_dev->vidq.dev = &solo_dev->pdev->dev; |
675 | ret = vb2_queue_init(q: &solo_dev->vidq); |
676 | if (ret < 0) |
677 | goto fail; |
678 | |
679 | /* Cycle all the channels and clear */ |
680 | for (i = 0; i < solo_dev->nr_chans; i++) { |
681 | solo_v4l2_set_ch(solo_dev, ch: i); |
682 | while (erase_off(solo_dev)) |
683 | /* Do nothing */; |
684 | } |
685 | |
686 | /* Set the default display channel */ |
687 | solo_v4l2_set_ch(solo_dev, ch: 0); |
688 | while (erase_off(solo_dev)) |
689 | /* Do nothing */; |
690 | |
691 | ret = video_register_device(vdev: solo_dev->vfd, type: VFL_TYPE_VIDEO, nr); |
692 | if (ret < 0) |
693 | goto fail; |
694 | |
695 | snprintf(buf: solo_dev->vfd->name, size: sizeof(solo_dev->vfd->name), fmt: "%s (%i)" , |
696 | SOLO6X10_NAME, solo_dev->vfd->num); |
697 | |
698 | dev_info(&solo_dev->pdev->dev, "Display as /dev/video%d with %d inputs (%d extended)\n" , |
699 | solo_dev->vfd->num, |
700 | solo_dev->nr_chans, solo_dev->nr_ext); |
701 | |
702 | return 0; |
703 | |
704 | fail: |
705 | video_device_release(vdev: solo_dev->vfd); |
706 | v4l2_ctrl_handler_free(hdl: &solo_dev->disp_hdl); |
707 | solo_dev->vfd = NULL; |
708 | return ret; |
709 | } |
710 | |
711 | void solo_v4l2_exit(struct solo_dev *solo_dev) |
712 | { |
713 | if (solo_dev->vfd == NULL) |
714 | return; |
715 | |
716 | video_unregister_device(vdev: solo_dev->vfd); |
717 | v4l2_ctrl_handler_free(hdl: &solo_dev->disp_hdl); |
718 | solo_dev->vfd = NULL; |
719 | } |
720 | |