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faa4fd2a BC |
1 | /* |
2 | * Copyright (C) 2010 Bluecherry, LLC www.bluecherrydvr.com | |
3 | * Copyright (C) 2010 Ben Collins <bcollins@bluecherry.net> | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
18 | */ | |
19 | ||
20 | #include <linux/kernel.h> | |
21 | #include <linux/module.h> | |
22 | #include <linux/kthread.h> | |
23 | #include <linux/freezer.h> | |
24 | ||
25 | #include <media/v4l2-ioctl.h> | |
26 | #include <media/v4l2-common.h> | |
f62de9be | 27 | #include <media/videobuf-dma-sg.h> |
faa4fd2a BC |
28 | |
29 | #include "solo6010.h" | |
30 | #include "solo6010-tw28.h" | |
31 | ||
32 | #define SOLO_HW_BPL 2048 | |
33 | #define SOLO_DISP_PIX_FIELD V4L2_FIELD_INTERLACED | |
faa4fd2a BC |
34 | |
35 | /* Image size is two fields, SOLO_HW_BPL is one horizontal line */ | |
36 | #define solo_vlines(__solo) (__solo->video_vsize * 2) | |
37 | #define solo_image_size(__solo) (solo_bytesperline(__solo) * \ | |
38 | solo_vlines(__solo)) | |
39 | #define solo_bytesperline(__solo) (__solo->video_hsize * 2) | |
40 | ||
41 | #define MIN_VID_BUFFERS 4 | |
42 | ||
43 | /* Simple file handle */ | |
44 | struct solo_filehandle { | |
45 | struct solo6010_dev *solo_dev; | |
46 | struct videobuf_queue vidq; | |
47 | struct task_struct *kthread; | |
48 | spinlock_t slock; | |
49 | int old_write; | |
50 | struct list_head vidq_active; | |
f62de9be BC |
51 | struct p2m_desc desc[SOLO_NR_P2M_DESC]; |
52 | int desc_idx; | |
faa4fd2a BC |
53 | }; |
54 | ||
55 | unsigned video_nr = -1; | |
56 | module_param(video_nr, uint, 0644); | |
57 | MODULE_PARM_DESC(video_nr, "videoX start number, -1 is autodetect (default)"); | |
58 | ||
59 | static void erase_on(struct solo6010_dev *solo_dev) | |
60 | { | |
61 | solo_reg_write(solo_dev, SOLO_VO_DISP_ERASE, SOLO_VO_DISP_ERASE_ON); | |
62 | solo_dev->erasing = 1; | |
63 | solo_dev->frame_blank = 0; | |
64 | } | |
65 | ||
66 | static int erase_off(struct solo6010_dev *solo_dev) | |
67 | { | |
68 | if (!solo_dev->erasing) | |
69 | return 0; | |
70 | ||
71 | /* First time around, assert erase off */ | |
72 | if (!solo_dev->frame_blank) | |
73 | solo_reg_write(solo_dev, SOLO_VO_DISP_ERASE, 0); | |
74 | /* Keep the erasing flag on for 8 frames minimum */ | |
75 | if (solo_dev->frame_blank++ >= 8) | |
76 | solo_dev->erasing = 0; | |
77 | ||
78 | return 1; | |
79 | } | |
80 | ||
81 | void solo_video_in_isr(struct solo6010_dev *solo_dev) | |
82 | { | |
83 | solo_reg_write(solo_dev, SOLO_IRQ_STAT, SOLO_IRQ_VIDEO_IN); | |
84 | wake_up_interruptible(&solo_dev->disp_thread_wait); | |
85 | } | |
86 | ||
87 | static void solo_win_setup(struct solo6010_dev *solo_dev, u8 ch, | |
88 | int sx, int sy, int ex, int ey, int scale) | |
89 | { | |
90 | if (ch >= solo_dev->nr_chans) | |
91 | return; | |
92 | ||
93 | /* Here, we just keep window/channel the same */ | |
94 | solo_reg_write(solo_dev, SOLO_VI_WIN_CTRL0(ch), | |
95 | SOLO_VI_WIN_CHANNEL(ch) | | |
96 | SOLO_VI_WIN_SX(sx) | | |
97 | SOLO_VI_WIN_EX(ex) | | |
98 | SOLO_VI_WIN_SCALE(scale)); | |
99 | ||
f62de9be | 100 | solo_reg_write(solo_dev, SOLO_VI_WIN_CTRL1(ch), |
faa4fd2a BC |
101 | SOLO_VI_WIN_SY(sy) | |
102 | SOLO_VI_WIN_EY(ey)); | |
103 | } | |
104 | ||
105 | static int solo_v4l2_ch_ext_4up(struct solo6010_dev *solo_dev, u8 idx, int on) | |
106 | { | |
107 | u8 ch = idx * 4; | |
108 | ||
109 | if (ch >= solo_dev->nr_chans) | |
110 | return -EINVAL; | |
111 | ||
112 | if (!on) { | |
113 | u8 i; | |
114 | for (i = ch; i < ch + 4; i++) | |
115 | solo_win_setup(solo_dev, i, solo_dev->video_hsize, | |
116 | solo_vlines(solo_dev), | |
117 | solo_dev->video_hsize, | |
118 | solo_vlines(solo_dev), 0); | |
119 | return 0; | |
120 | } | |
121 | ||
122 | /* Row 1 */ | |
123 | solo_win_setup(solo_dev, ch, 0, 0, solo_dev->video_hsize / 2, | |
124 | solo_vlines(solo_dev) / 2, 3); | |
125 | solo_win_setup(solo_dev, ch + 1, solo_dev->video_hsize / 2, 0, | |
126 | solo_dev->video_hsize, solo_vlines(solo_dev) / 2, 3); | |
127 | /* Row 2 */ | |
128 | solo_win_setup(solo_dev, ch + 2, 0, solo_vlines(solo_dev) / 2, | |
129 | solo_dev->video_hsize / 2, solo_vlines(solo_dev), 3); | |
130 | solo_win_setup(solo_dev, ch + 3, solo_dev->video_hsize / 2, | |
131 | solo_vlines(solo_dev) / 2, solo_dev->video_hsize, | |
132 | solo_vlines(solo_dev), 3); | |
133 | ||
134 | return 0; | |
135 | } | |
136 | ||
137 | static int solo_v4l2_ch_ext_16up(struct solo6010_dev *solo_dev, int on) | |
138 | { | |
139 | int sy, ysize, hsize, i; | |
140 | ||
141 | if (!on) { | |
142 | for (i = 0; i < 16; i++) | |
143 | solo_win_setup(solo_dev, i, solo_dev->video_hsize, | |
144 | solo_vlines(solo_dev), | |
145 | solo_dev->video_hsize, | |
146 | solo_vlines(solo_dev), 0); | |
147 | return 0; | |
148 | } | |
149 | ||
150 | ysize = solo_vlines(solo_dev) / 4; | |
151 | hsize = solo_dev->video_hsize / 4; | |
152 | ||
153 | for (sy = 0, i = 0; i < 4; i++, sy += ysize) { | |
154 | solo_win_setup(solo_dev, i * 4, 0, sy, hsize, | |
155 | sy + ysize, 5); | |
156 | solo_win_setup(solo_dev, (i * 4) + 1, hsize, sy, | |
157 | hsize * 2, sy + ysize, 5); | |
158 | solo_win_setup(solo_dev, (i * 4) + 2, hsize * 2, sy, | |
159 | hsize * 3, sy + ysize, 5); | |
160 | solo_win_setup(solo_dev, (i * 4) + 3, hsize * 3, sy, | |
161 | solo_dev->video_hsize, sy + ysize, 5); | |
162 | } | |
163 | ||
164 | return 0; | |
165 | } | |
166 | ||
167 | static int solo_v4l2_ch(struct solo6010_dev *solo_dev, u8 ch, int on) | |
168 | { | |
169 | u8 ext_ch; | |
170 | ||
171 | if (ch < solo_dev->nr_chans) { | |
172 | solo_win_setup(solo_dev, ch, on ? 0 : solo_dev->video_hsize, | |
173 | on ? 0 : solo_vlines(solo_dev), | |
174 | solo_dev->video_hsize, solo_vlines(solo_dev), | |
175 | on ? 1 : 0); | |
176 | return 0; | |
177 | } | |
178 | ||
179 | if (ch >= solo_dev->nr_chans + solo_dev->nr_ext) | |
180 | return -EINVAL; | |
181 | ||
182 | ext_ch = ch - solo_dev->nr_chans; | |
183 | ||
184 | /* 4up's first */ | |
185 | if (ext_ch < 4) | |
186 | return solo_v4l2_ch_ext_4up(solo_dev, ext_ch, on); | |
187 | ||
188 | /* Remaining case is 16up for 16-port */ | |
189 | return solo_v4l2_ch_ext_16up(solo_dev, on); | |
190 | } | |
191 | ||
192 | static int solo_v4l2_set_ch(struct solo6010_dev *solo_dev, u8 ch) | |
193 | { | |
194 | if (ch >= solo_dev->nr_chans + solo_dev->nr_ext) | |
195 | return -EINVAL; | |
196 | ||
197 | erase_on(solo_dev); | |
198 | ||
199 | solo_v4l2_ch(solo_dev, solo_dev->cur_disp_ch, 0); | |
200 | solo_v4l2_ch(solo_dev, ch, 1); | |
201 | ||
202 | solo_dev->cur_disp_ch = ch; | |
203 | ||
204 | return 0; | |
205 | } | |
206 | ||
f62de9be BC |
207 | static void disp_reset_desc(struct solo_filehandle *fh) |
208 | { | |
0e4de059 BC |
209 | /* We use desc mode, which ignores desc 0 */ |
210 | memset(fh->desc, 0, sizeof(*fh->desc)); | |
211 | fh->desc_idx = 1; | |
f62de9be BC |
212 | } |
213 | ||
214 | static int disp_flush_descs(struct solo_filehandle *fh) | |
215 | { | |
216 | int ret; | |
217 | ||
218 | if (!fh->desc_idx) | |
219 | return 0; | |
220 | ||
221 | ret = solo_p2m_dma_desc(fh->solo_dev, SOLO_P2M_DMA_ID_DISP, | |
222 | fh->desc, fh->desc_idx); | |
223 | disp_reset_desc(fh); | |
224 | ||
225 | return ret; | |
226 | } | |
227 | ||
228 | static int disp_push_desc(struct solo_filehandle *fh, dma_addr_t dma_addr, | |
229 | u32 ext_addr, int size, int repeat, int ext_size) | |
230 | { | |
231 | if (fh->desc_idx >= SOLO_NR_P2M_DESC) { | |
232 | int ret = disp_flush_descs(fh); | |
233 | if (ret) | |
234 | return ret; | |
235 | } | |
236 | ||
237 | solo_p2m_push_desc(&fh->desc[fh->desc_idx], 0, dma_addr, ext_addr, | |
238 | size, repeat, ext_size); | |
239 | fh->desc_idx++; | |
240 | ||
241 | return 0; | |
242 | } | |
243 | ||
faa4fd2a BC |
244 | static void solo_fillbuf(struct solo_filehandle *fh, |
245 | struct videobuf_buffer *vb) | |
246 | { | |
247 | struct solo6010_dev *solo_dev = fh->solo_dev; | |
afabbe6d | 248 | struct videobuf_dmabuf *vbuf; |
faa4fd2a | 249 | unsigned int fdma_addr; |
faa4fd2a BC |
250 | int error = 1; |
251 | int i; | |
afabbe6d | 252 | struct scatterlist *sg; |
f62de9be BC |
253 | dma_addr_t sg_dma; |
254 | int sg_size_left; | |
faa4fd2a | 255 | |
afabbe6d | 256 | vbuf = videobuf_to_dma(vb); |
257 | if (!vbuf) | |
faa4fd2a BC |
258 | goto finish_buf; |
259 | ||
260 | if (erase_off(solo_dev)) { | |
f62de9be BC |
261 | int i; |
262 | ||
263 | /* Just blit to the entire sg list, ignoring size */ | |
264 | for_each_sg(vbuf->sglist, sg, vbuf->sglen, i) { | |
265 | void *p = sg_virt(sg); | |
266 | size_t len = sg_dma_len(sg); | |
267 | ||
268 | for (i = 0; i < len; i += 2) { | |
269 | ((u8 *)p)[i] = 0x80; | |
270 | ((u8 *)p)[i + 1] = 0x00; | |
271 | } | |
faa4fd2a | 272 | } |
f62de9be | 273 | |
faa4fd2a BC |
274 | error = 0; |
275 | goto finish_buf; | |
276 | } | |
277 | ||
f62de9be BC |
278 | disp_reset_desc(fh); |
279 | sg = vbuf->sglist; | |
280 | sg_dma = sg_dma_address(sg); | |
281 | sg_size_left = sg_dma_len(sg); | |
282 | ||
283 | fdma_addr = SOLO_DISP_EXT_ADDR(solo_dev) + (fh->old_write * | |
284 | (SOLO_HW_BPL * solo_vlines(solo_dev))); | |
faa4fd2a | 285 | |
f62de9be BC |
286 | for (i = 0; i < solo_vlines(solo_dev); i++) { |
287 | int line_len = solo_bytesperline(solo_dev); | |
288 | int lines; | |
289 | ||
290 | if (!sg_size_left) { | |
291 | sg = sg_next(sg); | |
292 | if (sg == NULL) | |
faa4fd2a | 293 | goto finish_buf; |
f62de9be BC |
294 | sg_dma = sg_dma_address(sg); |
295 | sg_size_left = sg_dma_len(sg); | |
faa4fd2a | 296 | } |
f62de9be BC |
297 | |
298 | /* No room for an entire line, so chunk it up */ | |
299 | if (sg_size_left < line_len) { | |
300 | int this_addr = fdma_addr; | |
301 | ||
302 | while (line_len > 0) { | |
303 | int this_write; | |
304 | ||
305 | if (!sg_size_left) { | |
306 | sg = sg_next(sg); | |
307 | if (sg == NULL) | |
308 | goto finish_buf; | |
309 | sg_dma = sg_dma_address(sg); | |
310 | sg_size_left = sg_dma_len(sg); | |
311 | } | |
312 | ||
313 | this_write = min(sg_size_left, line_len); | |
314 | ||
315 | if (disp_push_desc(fh, sg_dma, this_addr, | |
316 | this_write, 0, 0)) | |
317 | goto finish_buf; | |
318 | ||
319 | line_len -= this_write; | |
320 | sg_size_left -= this_write; | |
321 | sg_dma += this_write; | |
322 | this_addr += this_write; | |
323 | } | |
324 | ||
325 | fdma_addr += SOLO_HW_BPL; | |
326 | continue; | |
327 | } | |
328 | ||
329 | /* Shove as many lines into a repeating descriptor as possible */ | |
330 | lines = min(sg_size_left / line_len, | |
331 | solo_vlines(solo_dev) - i); | |
332 | ||
333 | if (disp_push_desc(fh, sg_dma, fdma_addr, line_len, | |
334 | lines - 1, SOLO_HW_BPL)) | |
335 | goto finish_buf; | |
336 | ||
337 | i += lines - 1; | |
338 | fdma_addr += SOLO_HW_BPL * lines; | |
339 | sg_dma += lines * line_len; | |
340 | sg_size_left -= lines * line_len; | |
faa4fd2a | 341 | } |
f62de9be BC |
342 | |
343 | error = disp_flush_descs(fh); | |
faa4fd2a BC |
344 | |
345 | finish_buf: | |
346 | if (error) { | |
347 | vb->state = VIDEOBUF_ERROR; | |
348 | } else { | |
f62de9be | 349 | vb->size = solo_vlines(solo_dev) * solo_bytesperline(solo_dev); |
faa4fd2a BC |
350 | vb->state = VIDEOBUF_DONE; |
351 | vb->field_count++; | |
352 | do_gettimeofday(&vb->ts); | |
353 | } | |
354 | ||
355 | wake_up(&vb->done); | |
356 | ||
357 | return; | |
358 | } | |
359 | ||
360 | static void solo_thread_try(struct solo_filehandle *fh) | |
361 | { | |
362 | struct videobuf_buffer *vb; | |
363 | unsigned int cur_write; | |
364 | ||
365 | for (;;) { | |
366 | spin_lock(&fh->slock); | |
367 | ||
368 | if (list_empty(&fh->vidq_active)) | |
369 | break; | |
370 | ||
371 | vb = list_first_entry(&fh->vidq_active, struct videobuf_buffer, | |
372 | queue); | |
373 | ||
374 | if (!waitqueue_active(&vb->done)) | |
375 | break; | |
376 | ||
377 | cur_write = SOLO_VI_STATUS0_PAGE(solo_reg_read(fh->solo_dev, | |
f62de9be | 378 | SOLO_VI_STATUS0)); |
faa4fd2a BC |
379 | if (cur_write == fh->old_write) |
380 | break; | |
381 | ||
382 | fh->old_write = cur_write; | |
383 | list_del(&vb->queue); | |
384 | ||
385 | spin_unlock(&fh->slock); | |
386 | ||
387 | solo_fillbuf(fh, vb); | |
388 | } | |
389 | ||
390 | assert_spin_locked(&fh->slock); | |
391 | spin_unlock(&fh->slock); | |
392 | } | |
393 | ||
394 | static int solo_thread(void *data) | |
395 | { | |
396 | struct solo_filehandle *fh = data; | |
397 | struct solo6010_dev *solo_dev = fh->solo_dev; | |
398 | DECLARE_WAITQUEUE(wait, current); | |
399 | ||
400 | set_freezable(); | |
401 | add_wait_queue(&solo_dev->disp_thread_wait, &wait); | |
402 | ||
403 | for (;;) { | |
404 | long timeout = schedule_timeout_interruptible(HZ); | |
405 | if (timeout == -ERESTARTSYS || kthread_should_stop()) | |
406 | break; | |
407 | solo_thread_try(fh); | |
408 | try_to_freeze(); | |
409 | } | |
410 | ||
411 | remove_wait_queue(&solo_dev->disp_thread_wait, &wait); | |
412 | ||
f62de9be | 413 | return 0; |
faa4fd2a BC |
414 | } |
415 | ||
416 | static int solo_start_thread(struct solo_filehandle *fh) | |
417 | { | |
418 | fh->kthread = kthread_run(solo_thread, fh, SOLO6010_NAME "_disp"); | |
419 | ||
420 | if (IS_ERR(fh->kthread)) | |
421 | return PTR_ERR(fh->kthread); | |
422 | ||
423 | return 0; | |
424 | } | |
425 | ||
426 | static void solo_stop_thread(struct solo_filehandle *fh) | |
427 | { | |
428 | if (fh->kthread) { | |
429 | kthread_stop(fh->kthread); | |
430 | fh->kthread = NULL; | |
431 | } | |
432 | } | |
433 | ||
434 | static int solo_buf_setup(struct videobuf_queue *vq, unsigned int *count, | |
435 | unsigned int *size) | |
436 | { | |
437 | struct solo_filehandle *fh = vq->priv_data; | |
438 | struct solo6010_dev *solo_dev = fh->solo_dev; | |
439 | ||
f62de9be | 440 | *size = solo_image_size(solo_dev); |
faa4fd2a | 441 | |
f62de9be | 442 | if (*count < MIN_VID_BUFFERS) |
faa4fd2a BC |
443 | *count = MIN_VID_BUFFERS; |
444 | ||
f62de9be | 445 | return 0; |
faa4fd2a BC |
446 | } |
447 | ||
448 | static int solo_buf_prepare(struct videobuf_queue *vq, | |
449 | struct videobuf_buffer *vb, enum v4l2_field field) | |
450 | { | |
451 | struct solo_filehandle *fh = vq->priv_data; | |
452 | struct solo6010_dev *solo_dev = fh->solo_dev; | |
453 | ||
454 | vb->size = solo_image_size(solo_dev); | |
455 | if (vb->baddr != 0 && vb->bsize < vb->size) | |
456 | return -EINVAL; | |
457 | ||
458 | /* XXX: These properties only change when queue is idle */ | |
459 | vb->width = solo_dev->video_hsize; | |
460 | vb->height = solo_vlines(solo_dev); | |
461 | vb->bytesperline = solo_bytesperline(solo_dev); | |
462 | vb->field = field; | |
463 | ||
464 | if (vb->state == VIDEOBUF_NEEDS_INIT) { | |
465 | int rc = videobuf_iolock(vq, vb, NULL); | |
466 | if (rc < 0) { | |
f62de9be | 467 | struct videobuf_dmabuf *dma = videobuf_to_dma(vb); |
319fb3ba | 468 | videobuf_dma_unmap(vq->dev, dma); |
f62de9be | 469 | videobuf_dma_free(dma); |
faa4fd2a BC |
470 | vb->state = VIDEOBUF_NEEDS_INIT; |
471 | return rc; | |
472 | } | |
473 | } | |
474 | vb->state = VIDEOBUF_PREPARED; | |
475 | ||
476 | return 0; | |
477 | } | |
478 | ||
479 | static void solo_buf_queue(struct videobuf_queue *vq, | |
480 | struct videobuf_buffer *vb) | |
481 | { | |
482 | struct solo_filehandle *fh = vq->priv_data; | |
483 | struct solo6010_dev *solo_dev = fh->solo_dev; | |
484 | ||
485 | vb->state = VIDEOBUF_QUEUED; | |
486 | list_add_tail(&vb->queue, &fh->vidq_active); | |
487 | wake_up_interruptible(&solo_dev->disp_thread_wait); | |
488 | } | |
489 | ||
490 | static void solo_buf_release(struct videobuf_queue *vq, | |
491 | struct videobuf_buffer *vb) | |
492 | { | |
f62de9be BC |
493 | struct videobuf_dmabuf *dma = videobuf_to_dma(vb); |
494 | ||
319fb3ba | 495 | videobuf_dma_unmap(vq->dev, dma); |
f62de9be | 496 | videobuf_dma_free(dma); |
faa4fd2a BC |
497 | vb->state = VIDEOBUF_NEEDS_INIT; |
498 | } | |
499 | ||
500 | static struct videobuf_queue_ops solo_video_qops = { | |
501 | .buf_setup = solo_buf_setup, | |
502 | .buf_prepare = solo_buf_prepare, | |
503 | .buf_queue = solo_buf_queue, | |
504 | .buf_release = solo_buf_release, | |
505 | }; | |
506 | ||
507 | static unsigned int solo_v4l2_poll(struct file *file, | |
508 | struct poll_table_struct *wait) | |
509 | { | |
510 | struct solo_filehandle *fh = file->private_data; | |
511 | ||
f62de9be | 512 | return videobuf_poll_stream(file, &fh->vidq, wait); |
faa4fd2a BC |
513 | } |
514 | ||
515 | static int solo_v4l2_mmap(struct file *file, struct vm_area_struct *vma) | |
516 | { | |
517 | struct solo_filehandle *fh = file->private_data; | |
518 | ||
519 | return videobuf_mmap_mapper(&fh->vidq, vma); | |
520 | } | |
521 | ||
522 | static int solo_v4l2_open(struct file *file) | |
523 | { | |
524 | struct solo6010_dev *solo_dev = video_drvdata(file); | |
525 | struct solo_filehandle *fh; | |
526 | int ret; | |
527 | ||
afabbe6d | 528 | fh = kzalloc(sizeof(*fh), GFP_KERNEL); |
529 | if (fh == NULL) | |
faa4fd2a BC |
530 | return -ENOMEM; |
531 | ||
532 | spin_lock_init(&fh->slock); | |
533 | INIT_LIST_HEAD(&fh->vidq_active); | |
534 | fh->solo_dev = solo_dev; | |
535 | file->private_data = fh; | |
536 | ||
afabbe6d | 537 | ret = solo_start_thread(fh); |
538 | if (ret) { | |
faa4fd2a BC |
539 | kfree(fh); |
540 | return ret; | |
541 | } | |
542 | ||
f62de9be BC |
543 | videobuf_queue_sg_init(&fh->vidq, &solo_video_qops, |
544 | &solo_dev->pdev->dev, &fh->slock, | |
545 | V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
546 | SOLO_DISP_PIX_FIELD, | |
319fb3ba | 547 | sizeof(struct videobuf_buffer), fh, NULL); |
faa4fd2a BC |
548 | |
549 | return 0; | |
550 | } | |
551 | ||
552 | static ssize_t solo_v4l2_read(struct file *file, char __user *data, | |
553 | size_t count, loff_t *ppos) | |
554 | { | |
555 | struct solo_filehandle *fh = file->private_data; | |
556 | ||
557 | return videobuf_read_stream(&fh->vidq, data, count, ppos, 0, | |
558 | file->f_flags & O_NONBLOCK); | |
559 | } | |
560 | ||
561 | static int solo_v4l2_release(struct file *file) | |
562 | { | |
563 | struct solo_filehandle *fh = file->private_data; | |
564 | ||
565 | videobuf_stop(&fh->vidq); | |
566 | videobuf_mmap_free(&fh->vidq); | |
567 | solo_stop_thread(fh); | |
568 | kfree(fh); | |
569 | ||
570 | return 0; | |
571 | } | |
572 | ||
573 | static int solo_querycap(struct file *file, void *priv, | |
574 | struct v4l2_capability *cap) | |
575 | { | |
576 | struct solo_filehandle *fh = priv; | |
577 | struct solo6010_dev *solo_dev = fh->solo_dev; | |
578 | ||
579 | strcpy(cap->driver, SOLO6010_NAME); | |
580 | strcpy(cap->card, "Softlogic 6010"); | |
581 | snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI %s", | |
582 | pci_name(solo_dev->pdev)); | |
583 | cap->version = SOLO6010_VER_NUM; | |
584 | cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | | |
585 | V4L2_CAP_READWRITE | | |
586 | V4L2_CAP_STREAMING; | |
587 | return 0; | |
588 | } | |
589 | ||
590 | static int solo_enum_ext_input(struct solo6010_dev *solo_dev, | |
591 | struct v4l2_input *input) | |
592 | { | |
593 | static const char *dispnames_1[] = { "4UP" }; | |
594 | static const char *dispnames_2[] = { "4UP-1", "4UP-2" }; | |
595 | static const char *dispnames_5[] = { | |
596 | "4UP-1", "4UP-2", "4UP-3", "4UP-4", "16UP" | |
597 | }; | |
598 | const char **dispnames; | |
599 | ||
600 | if (input->index >= (solo_dev->nr_chans + solo_dev->nr_ext)) | |
601 | return -EINVAL; | |
602 | ||
603 | if (solo_dev->nr_ext == 5) | |
604 | dispnames = dispnames_5; | |
605 | else if (solo_dev->nr_ext == 2) | |
606 | dispnames = dispnames_2; | |
607 | else | |
608 | dispnames = dispnames_1; | |
609 | ||
610 | snprintf(input->name, sizeof(input->name), "Multi %s", | |
611 | dispnames[input->index - solo_dev->nr_chans]); | |
612 | ||
613 | return 0; | |
614 | } | |
615 | ||
616 | static int solo_enum_input(struct file *file, void *priv, | |
617 | struct v4l2_input *input) | |
618 | { | |
619 | struct solo_filehandle *fh = priv; | |
620 | struct solo6010_dev *solo_dev = fh->solo_dev; | |
621 | ||
622 | if (input->index >= solo_dev->nr_chans) { | |
623 | int ret = solo_enum_ext_input(solo_dev, input); | |
624 | if (ret < 0) | |
625 | return ret; | |
626 | } else { | |
627 | snprintf(input->name, sizeof(input->name), "Camera %d", | |
628 | input->index + 1); | |
629 | ||
630 | /* We can only check this for normal inputs */ | |
631 | if (!tw28_get_video_status(solo_dev, input->index)) | |
632 | input->status = V4L2_IN_ST_NO_SIGNAL; | |
633 | } | |
634 | ||
635 | input->type = V4L2_INPUT_TYPE_CAMERA; | |
636 | ||
637 | if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) | |
638 | input->std = V4L2_STD_NTSC_M; | |
639 | else | |
f62de9be | 640 | input->std = V4L2_STD_PAL_B; |
faa4fd2a BC |
641 | |
642 | return 0; | |
643 | } | |
644 | ||
645 | static int solo_set_input(struct file *file, void *priv, unsigned int index) | |
646 | { | |
647 | struct solo_filehandle *fh = priv; | |
648 | ||
649 | return solo_v4l2_set_ch(fh->solo_dev, index); | |
650 | } | |
651 | ||
652 | static int solo_get_input(struct file *file, void *priv, unsigned int *index) | |
653 | { | |
654 | struct solo_filehandle *fh = priv; | |
655 | ||
656 | *index = fh->solo_dev->cur_disp_ch; | |
657 | ||
658 | return 0; | |
659 | } | |
660 | ||
661 | static int solo_enum_fmt_cap(struct file *file, void *priv, | |
662 | struct v4l2_fmtdesc *f) | |
663 | { | |
664 | if (f->index) | |
665 | return -EINVAL; | |
666 | ||
667 | f->pixelformat = V4L2_PIX_FMT_UYVY; | |
668 | strlcpy(f->description, "UYUV 4:2:2 Packed", sizeof(f->description)); | |
669 | ||
670 | return 0; | |
671 | } | |
672 | ||
673 | static int solo_try_fmt_cap(struct file *file, void *priv, | |
674 | struct v4l2_format *f) | |
675 | { | |
676 | struct solo_filehandle *fh = priv; | |
677 | struct solo6010_dev *solo_dev = fh->solo_dev; | |
678 | struct v4l2_pix_format *pix = &f->fmt.pix; | |
679 | int image_size = solo_image_size(solo_dev); | |
680 | ||
681 | /* Check supported sizes */ | |
682 | if (pix->width != solo_dev->video_hsize) | |
683 | pix->width = solo_dev->video_hsize; | |
684 | if (pix->height != solo_vlines(solo_dev)) | |
685 | pix->height = solo_vlines(solo_dev); | |
686 | if (pix->sizeimage != image_size) | |
687 | pix->sizeimage = image_size; | |
688 | ||
689 | /* Check formats */ | |
690 | if (pix->field == V4L2_FIELD_ANY) | |
691 | pix->field = SOLO_DISP_PIX_FIELD; | |
692 | ||
693 | if (pix->pixelformat != V4L2_PIX_FMT_UYVY || | |
694 | pix->field != SOLO_DISP_PIX_FIELD || | |
695 | pix->colorspace != V4L2_COLORSPACE_SMPTE170M) | |
696 | return -EINVAL; | |
697 | ||
698 | return 0; | |
699 | } | |
700 | ||
701 | static int solo_set_fmt_cap(struct file *file, void *priv, | |
702 | struct v4l2_format *f) | |
703 | { | |
704 | struct solo_filehandle *fh = priv; | |
705 | ||
706 | if (videobuf_queue_is_busy(&fh->vidq)) | |
707 | return -EBUSY; | |
708 | ||
709 | /* For right now, if it doesn't match our running config, | |
710 | * then fail */ | |
711 | return solo_try_fmt_cap(file, priv, f); | |
712 | } | |
713 | ||
714 | static int solo_get_fmt_cap(struct file *file, void *priv, | |
715 | struct v4l2_format *f) | |
716 | { | |
717 | struct solo_filehandle *fh = priv; | |
718 | struct solo6010_dev *solo_dev = fh->solo_dev; | |
719 | struct v4l2_pix_format *pix = &f->fmt.pix; | |
720 | ||
721 | pix->width = solo_dev->video_hsize; | |
722 | pix->height = solo_vlines(solo_dev); | |
723 | pix->pixelformat = V4L2_PIX_FMT_UYVY; | |
724 | pix->field = SOLO_DISP_PIX_FIELD; | |
725 | pix->sizeimage = solo_image_size(solo_dev); | |
726 | pix->colorspace = V4L2_COLORSPACE_SMPTE170M; | |
727 | pix->bytesperline = solo_bytesperline(solo_dev); | |
728 | ||
729 | return 0; | |
730 | } | |
731 | ||
afabbe6d | 732 | static int solo_reqbufs(struct file *file, void *priv, |
faa4fd2a BC |
733 | struct v4l2_requestbuffers *req) |
734 | { | |
735 | struct solo_filehandle *fh = priv; | |
736 | ||
737 | return videobuf_reqbufs(&fh->vidq, req); | |
738 | } | |
739 | ||
740 | static int solo_querybuf(struct file *file, void *priv, struct v4l2_buffer *buf) | |
741 | { | |
742 | struct solo_filehandle *fh = priv; | |
743 | ||
744 | return videobuf_querybuf(&fh->vidq, buf); | |
745 | } | |
746 | ||
747 | static int solo_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf) | |
748 | { | |
749 | struct solo_filehandle *fh = priv; | |
750 | ||
751 | return videobuf_qbuf(&fh->vidq, buf); | |
752 | } | |
753 | ||
754 | static int solo_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf) | |
755 | { | |
756 | struct solo_filehandle *fh = priv; | |
757 | ||
758 | return videobuf_dqbuf(&fh->vidq, buf, file->f_flags & O_NONBLOCK); | |
759 | } | |
760 | ||
761 | static int solo_streamon(struct file *file, void *priv, enum v4l2_buf_type i) | |
762 | { | |
763 | struct solo_filehandle *fh = priv; | |
764 | ||
765 | if (i != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
766 | return -EINVAL; | |
767 | ||
768 | return videobuf_streamon(&fh->vidq); | |
769 | } | |
770 | ||
771 | static int solo_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) | |
772 | { | |
773 | struct solo_filehandle *fh = priv; | |
774 | ||
775 | if (i != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
776 | return -EINVAL; | |
777 | ||
778 | return videobuf_streamoff(&fh->vidq); | |
779 | } | |
780 | ||
781 | static int solo_s_std(struct file *file, void *priv, v4l2_std_id *i) | |
782 | { | |
783 | return 0; | |
784 | } | |
785 | ||
786 | static const u32 solo_motion_ctrls[] = { | |
787 | V4L2_CID_MOTION_TRACE, | |
788 | 0 | |
789 | }; | |
790 | ||
791 | static const u32 *solo_ctrl_classes[] = { | |
792 | solo_motion_ctrls, | |
793 | NULL | |
794 | }; | |
795 | ||
796 | static int solo_disp_queryctrl(struct file *file, void *priv, | |
797 | struct v4l2_queryctrl *qc) | |
798 | { | |
799 | qc->id = v4l2_ctrl_next(solo_ctrl_classes, qc->id); | |
800 | if (!qc->id) | |
801 | return -EINVAL; | |
802 | ||
803 | switch (qc->id) { | |
804 | #ifdef PRIVATE_CIDS | |
805 | case V4L2_CID_MOTION_TRACE: | |
806 | qc->type = V4L2_CTRL_TYPE_BOOLEAN; | |
807 | qc->minimum = 0; | |
808 | qc->maximum = qc->step = 1; | |
809 | qc->default_value = 0; | |
810 | strlcpy(qc->name, "Motion Detection Trace", sizeof(qc->name)); | |
811 | return 0; | |
812 | #else | |
813 | case V4L2_CID_MOTION_TRACE: | |
814 | return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0); | |
815 | #endif | |
816 | } | |
817 | return -EINVAL; | |
818 | } | |
819 | ||
820 | static int solo_disp_g_ctrl(struct file *file, void *priv, | |
821 | struct v4l2_control *ctrl) | |
822 | { | |
823 | struct solo_filehandle *fh = priv; | |
824 | struct solo6010_dev *solo_dev = fh->solo_dev; | |
825 | ||
826 | switch (ctrl->id) { | |
827 | case V4L2_CID_MOTION_TRACE: | |
828 | ctrl->value = solo_reg_read(solo_dev, SOLO_VI_MOTION_BAR) | |
829 | ? 1 : 0; | |
830 | return 0; | |
831 | } | |
832 | return -EINVAL; | |
833 | } | |
834 | ||
835 | static int solo_disp_s_ctrl(struct file *file, void *priv, | |
836 | struct v4l2_control *ctrl) | |
837 | { | |
838 | struct solo_filehandle *fh = priv; | |
839 | struct solo6010_dev *solo_dev = fh->solo_dev; | |
840 | ||
841 | switch (ctrl->id) { | |
842 | case V4L2_CID_MOTION_TRACE: | |
843 | if (ctrl->value) { | |
844 | solo_reg_write(solo_dev, SOLO_VI_MOTION_BORDER, | |
845 | SOLO_VI_MOTION_Y_ADD | | |
846 | SOLO_VI_MOTION_Y_VALUE(0x20) | | |
847 | SOLO_VI_MOTION_CB_VALUE(0x10) | | |
848 | SOLO_VI_MOTION_CR_VALUE(0x10)); | |
849 | solo_reg_write(solo_dev, SOLO_VI_MOTION_BAR, | |
850 | SOLO_VI_MOTION_CR_ADD | | |
851 | SOLO_VI_MOTION_Y_VALUE(0x10) | | |
852 | SOLO_VI_MOTION_CB_VALUE(0x80) | | |
853 | SOLO_VI_MOTION_CR_VALUE(0x10)); | |
854 | } else { | |
855 | solo_reg_write(solo_dev, SOLO_VI_MOTION_BORDER, 0); | |
856 | solo_reg_write(solo_dev, SOLO_VI_MOTION_BAR, 0); | |
857 | } | |
858 | return 0; | |
859 | } | |
860 | return -EINVAL; | |
861 | } | |
862 | ||
863 | static const struct v4l2_file_operations solo_v4l2_fops = { | |
864 | .owner = THIS_MODULE, | |
865 | .open = solo_v4l2_open, | |
866 | .release = solo_v4l2_release, | |
867 | .read = solo_v4l2_read, | |
868 | .poll = solo_v4l2_poll, | |
869 | .mmap = solo_v4l2_mmap, | |
870 | .ioctl = video_ioctl2, | |
871 | }; | |
872 | ||
873 | static const struct v4l2_ioctl_ops solo_v4l2_ioctl_ops = { | |
874 | .vidioc_querycap = solo_querycap, | |
875 | .vidioc_s_std = solo_s_std, | |
876 | /* Input callbacks */ | |
877 | .vidioc_enum_input = solo_enum_input, | |
878 | .vidioc_s_input = solo_set_input, | |
879 | .vidioc_g_input = solo_get_input, | |
880 | /* Video capture format callbacks */ | |
881 | .vidioc_enum_fmt_vid_cap = solo_enum_fmt_cap, | |
882 | .vidioc_try_fmt_vid_cap = solo_try_fmt_cap, | |
883 | .vidioc_s_fmt_vid_cap = solo_set_fmt_cap, | |
884 | .vidioc_g_fmt_vid_cap = solo_get_fmt_cap, | |
885 | /* Streaming I/O */ | |
886 | .vidioc_reqbufs = solo_reqbufs, | |
887 | .vidioc_querybuf = solo_querybuf, | |
888 | .vidioc_qbuf = solo_qbuf, | |
889 | .vidioc_dqbuf = solo_dqbuf, | |
890 | .vidioc_streamon = solo_streamon, | |
f62de9be | 891 | .vidioc_streamoff = solo_streamoff, |
faa4fd2a BC |
892 | /* Controls */ |
893 | .vidioc_queryctrl = solo_disp_queryctrl, | |
f62de9be BC |
894 | .vidioc_g_ctrl = solo_disp_g_ctrl, |
895 | .vidioc_s_ctrl = solo_disp_s_ctrl, | |
faa4fd2a BC |
896 | }; |
897 | ||
898 | static struct video_device solo_v4l2_template = { | |
899 | .name = SOLO6010_NAME, | |
900 | .fops = &solo_v4l2_fops, | |
901 | .ioctl_ops = &solo_v4l2_ioctl_ops, | |
902 | .minor = -1, | |
903 | .release = video_device_release, | |
904 | ||
f62de9be | 905 | .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_B, |
faa4fd2a BC |
906 | .current_norm = V4L2_STD_NTSC_M, |
907 | }; | |
908 | ||
909 | int solo_v4l2_init(struct solo6010_dev *solo_dev) | |
910 | { | |
911 | int ret; | |
912 | int i; | |
913 | ||
914 | init_waitqueue_head(&solo_dev->disp_thread_wait); | |
915 | ||
916 | solo_dev->vfd = video_device_alloc(); | |
917 | if (!solo_dev->vfd) | |
918 | return -ENOMEM; | |
919 | ||
920 | *solo_dev->vfd = solo_v4l2_template; | |
921 | solo_dev->vfd->parent = &solo_dev->pdev->dev; | |
922 | ||
923 | ret = video_register_device(solo_dev->vfd, VFL_TYPE_GRABBER, video_nr); | |
924 | if (ret < 0) { | |
925 | video_device_release(solo_dev->vfd); | |
926 | solo_dev->vfd = NULL; | |
927 | return ret; | |
928 | } | |
929 | ||
930 | video_set_drvdata(solo_dev->vfd, solo_dev); | |
931 | ||
932 | snprintf(solo_dev->vfd->name, sizeof(solo_dev->vfd->name), "%s (%i)", | |
933 | SOLO6010_NAME, solo_dev->vfd->num); | |
934 | ||
3850a8ae | 935 | if (video_nr != -1) |
faa4fd2a BC |
936 | video_nr++; |
937 | ||
938 | dev_info(&solo_dev->pdev->dev, "Display as /dev/video%d with " | |
939 | "%d inputs (%d extended)\n", solo_dev->vfd->num, | |
940 | solo_dev->nr_chans, solo_dev->nr_ext); | |
941 | ||
942 | /* Cycle all the channels and clear */ | |
943 | for (i = 0; i < solo_dev->nr_chans; i++) { | |
944 | solo_v4l2_set_ch(solo_dev, i); | |
945 | while (erase_off(solo_dev)) | |
afabbe6d | 946 | ;/* Do nothing */ |
faa4fd2a BC |
947 | } |
948 | ||
949 | /* Set the default display channel */ | |
950 | solo_v4l2_set_ch(solo_dev, 0); | |
951 | while (erase_off(solo_dev)) | |
afabbe6d | 952 | ;/* Do nothing */ |
faa4fd2a BC |
953 | |
954 | solo6010_irq_on(solo_dev, SOLO_IRQ_VIDEO_IN); | |
955 | ||
956 | return 0; | |
957 | } | |
958 | ||
959 | void solo_v4l2_exit(struct solo6010_dev *solo_dev) | |
960 | { | |
961 | solo6010_irq_off(solo_dev, SOLO_IRQ_VIDEO_IN); | |
962 | if (solo_dev->vfd) { | |
963 | video_unregister_device(solo_dev->vfd); | |
964 | solo_dev->vfd = NULL; | |
965 | } | |
966 | } |