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x86/amd-iommu: Add function to complete a tlb flush
[linux/fpc-iii.git] / drivers / media / video / cx23885 / cx23885-video.c
blob654cc253cd509e1b4e87e22ff89985abf0d9e57b
1 /*
2 * Driver for the Conexant CX23885 PCIe bridge
3 *
4 * Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 *
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21
22 #include <linux/init.h>
23 #include <linux/list.h>
24 #include <linux/module.h>
25 #include <linux/moduleparam.h>
26 #include <linux/kmod.h>
27 #include <linux/kernel.h>
28 #include <linux/slab.h>
29 #include <linux/smp_lock.h>
30 #include <linux/interrupt.h>
31 #include <linux/delay.h>
32 #include <linux/kthread.h>
33 #include <asm/div64.h>
34
35 #include "cx23885.h"
36 #include <media/v4l2-common.h>
37 #include <media/v4l2-ioctl.h>
38
39 MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
40 MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
41 MODULE_LICENSE("GPL");
42
43 /* ------------------------------------------------------------------ */
44
45 static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
46 static unsigned int vbi_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
47 static unsigned int radio_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
48
49 module_param_array(video_nr, int, NULL, 0444);
50 module_param_array(vbi_nr, int, NULL, 0444);
51 module_param_array(radio_nr, int, NULL, 0444);
52
53 MODULE_PARM_DESC(video_nr, "video device numbers");
54 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
55 MODULE_PARM_DESC(radio_nr, "radio device numbers");
56
57 static unsigned int video_debug;
58 module_param(video_debug, int, 0644);
59 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
60
61 static unsigned int irq_debug;
62 module_param(irq_debug, int, 0644);
63 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
64
65 static unsigned int vid_limit = 16;
66 module_param(vid_limit, int, 0644);
67 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
68
69 #define dprintk(level, fmt, arg...)\
70 do { if (video_debug >= level)\
71 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
72 } while (0)
73
74 /* ------------------------------------------------------------------- */
75 /* static data */
76
77 #define FORMAT_FLAGS_PACKED 0x01
78
79 static struct cx23885_fmt formats[] = {
80 {
81 .name = "8 bpp, gray",
82 .fourcc = V4L2_PIX_FMT_GREY,
83 .depth = 8,
84 .flags = FORMAT_FLAGS_PACKED,
85 }, {
86 .name = "15 bpp RGB, le",
87 .fourcc = V4L2_PIX_FMT_RGB555,
88 .depth = 16,
89 .flags = FORMAT_FLAGS_PACKED,
90 }, {
91 .name = "15 bpp RGB, be",
92 .fourcc = V4L2_PIX_FMT_RGB555X,
93 .depth = 16,
94 .flags = FORMAT_FLAGS_PACKED,
95 }, {
96 .name = "16 bpp RGB, le",
97 .fourcc = V4L2_PIX_FMT_RGB565,
98 .depth = 16,
99 .flags = FORMAT_FLAGS_PACKED,
100 }, {
101 .name = "16 bpp RGB, be",
102 .fourcc = V4L2_PIX_FMT_RGB565X,
103 .depth = 16,
104 .flags = FORMAT_FLAGS_PACKED,
105 }, {
106 .name = "24 bpp RGB, le",
107 .fourcc = V4L2_PIX_FMT_BGR24,
108 .depth = 24,
109 .flags = FORMAT_FLAGS_PACKED,
110 }, {
111 .name = "32 bpp RGB, le",
112 .fourcc = V4L2_PIX_FMT_BGR32,
113 .depth = 32,
114 .flags = FORMAT_FLAGS_PACKED,
115 }, {
116 .name = "32 bpp RGB, be",
117 .fourcc = V4L2_PIX_FMT_RGB32,
118 .depth = 32,
119 .flags = FORMAT_FLAGS_PACKED,
120 }, {
121 .name = "4:2:2, packed, YUYV",
122 .fourcc = V4L2_PIX_FMT_YUYV,
123 .depth = 16,
124 .flags = FORMAT_FLAGS_PACKED,
125 }, {
126 .name = "4:2:2, packed, UYVY",
127 .fourcc = V4L2_PIX_FMT_UYVY,
128 .depth = 16,
129 .flags = FORMAT_FLAGS_PACKED,
130 },
131 };
132
133 static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc)
134 {
135 unsigned int i;
136
137 for (i = 0; i < ARRAY_SIZE(formats); i++)
138 if (formats[i].fourcc == fourcc)
139 return formats+i;
140
141 printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc);
142 return NULL;
143 }
144
145 /* ------------------------------------------------------------------- */
146
147 static const struct v4l2_queryctrl no_ctl = {
148 .name = "42",
149 .flags = V4L2_CTRL_FLAG_DISABLED,
150 };
151
152 static struct cx23885_ctrl cx23885_ctls[] = {
153 /* --- video --- */
154 {
155 .v = {
156 .id = V4L2_CID_BRIGHTNESS,
157 .name = "Brightness",
158 .minimum = 0x00,
159 .maximum = 0xff,
160 .step = 1,
161 .default_value = 0x7f,
162 .type = V4L2_CTRL_TYPE_INTEGER,
163 },
164 .off = 128,
165 .reg = LUMA_CTRL,
166 .mask = 0x00ff,
167 .shift = 0,
168 }, {
169 .v = {
170 .id = V4L2_CID_CONTRAST,
171 .name = "Contrast",
172 .minimum = 0,
173 .maximum = 0xff,
174 .step = 1,
175 .default_value = 0x3f,
176 .type = V4L2_CTRL_TYPE_INTEGER,
177 },
178 .off = 0,
179 .reg = LUMA_CTRL,
180 .mask = 0xff00,
181 .shift = 8,
182 }, {
183 .v = {
184 .id = V4L2_CID_HUE,
185 .name = "Hue",
186 .minimum = 0,
187 .maximum = 0xff,
188 .step = 1,
189 .default_value = 0x7f,
190 .type = V4L2_CTRL_TYPE_INTEGER,
191 },
192 .off = 128,
193 .reg = CHROMA_CTRL,
194 .mask = 0xff0000,
195 .shift = 16,
196 }, {
197 /* strictly, this only describes only U saturation.
198 * V saturation is handled specially through code.
199 */
200 .v = {
201 .id = V4L2_CID_SATURATION,
202 .name = "Saturation",
203 .minimum = 0,
204 .maximum = 0xff,
205 .step = 1,
206 .default_value = 0x7f,
207 .type = V4L2_CTRL_TYPE_INTEGER,
208 },
209 .off = 0,
210 .reg = CHROMA_CTRL,
211 .mask = 0x00ff,
212 .shift = 0,
213 }, {
214 /* --- audio --- */
215 .v = {
216 .id = V4L2_CID_AUDIO_MUTE,
217 .name = "Mute",
218 .minimum = 0,
219 .maximum = 1,
220 .default_value = 1,
221 .type = V4L2_CTRL_TYPE_BOOLEAN,
222 },
223 .reg = PATH1_CTL1,
224 .mask = (0x1f << 24),
225 .shift = 24,
226 }, {
227 .v = {
228 .id = V4L2_CID_AUDIO_VOLUME,
229 .name = "Volume",
230 .minimum = 0,
231 .maximum = 0x3f,
232 .step = 1,
233 .default_value = 0x3f,
234 .type = V4L2_CTRL_TYPE_INTEGER,
235 },
236 .reg = PATH1_VOL_CTL,
237 .mask = 0xff,
238 .shift = 0,
239 }
240 };
241 static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls);
242
243 /* Must be sorted from low to high control ID! */
244 static const u32 cx23885_user_ctrls[] = {
245 V4L2_CID_USER_CLASS,
246 V4L2_CID_BRIGHTNESS,
247 V4L2_CID_CONTRAST,
248 V4L2_CID_SATURATION,
249 V4L2_CID_HUE,
250 V4L2_CID_AUDIO_VOLUME,
251 V4L2_CID_AUDIO_MUTE,
252 0
253 };
254
255 static const u32 *ctrl_classes[] = {
256 cx23885_user_ctrls,
257 NULL
258 };
259
260 static void cx23885_video_wakeup(struct cx23885_dev *dev,
261 struct cx23885_dmaqueue *q, u32 count)
262 {
263 struct cx23885_buffer *buf;
264 int bc;
265
266 for (bc = 0;; bc++) {
267 if (list_empty(&q->active))
268 break;
269 buf = list_entry(q->active.next,
270 struct cx23885_buffer, vb.queue);
271
272 /* count comes from the hw and is is 16bit wide --
273 * this trick handles wrap-arounds correctly for
274 * up to 32767 buffers in flight... */
275 if ((s16) (count - buf->count) < 0)
276 break;
277
278 do_gettimeofday(&buf->vb.ts);
279 dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i,
280 count, buf->count);
281 buf->vb.state = VIDEOBUF_DONE;
282 list_del(&buf->vb.queue);
283 wake_up(&buf->vb.done);
284 }
285 if (list_empty(&q->active))
286 del_timer(&q->timeout);
287 else
288 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
289 if (bc != 1)
290 printk(KERN_ERR "%s: %d buffers handled (should be 1)\n",
291 __func__, bc);
292 }
293
294 static int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
295 {
296 dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
297 __func__,
298 (unsigned int)norm,
299 v4l2_norm_to_name(norm));
300
301 dev->tvnorm = norm;
302
303 call_all(dev, core, s_std, norm);
304
305 return 0;
306 }
307
308 static struct video_device *cx23885_vdev_init(struct cx23885_dev *dev,
309 struct pci_dev *pci,
310 struct video_device *template,
311 char *type)
312 {
313 struct video_device *vfd;
314 dprintk(1, "%s()\n", __func__);
315
316 vfd = video_device_alloc();
317 if (NULL == vfd)
318 return NULL;
319 *vfd = *template;
320 vfd->minor = -1;
321 vfd->v4l2_dev = &dev->v4l2_dev;
322 vfd->release = video_device_release;
323 snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
324 dev->name, type, cx23885_boards[dev->board].name);
325 return vfd;
326 }
327
328 static int cx23885_ctrl_query(struct v4l2_queryctrl *qctrl)
329 {
330 int i;
331
332 if (qctrl->id < V4L2_CID_BASE ||
333 qctrl->id >= V4L2_CID_LASTP1)
334 return -EINVAL;
335 for (i = 0; i < CX23885_CTLS; i++)
336 if (cx23885_ctls[i].v.id == qctrl->id)
337 break;
338 if (i == CX23885_CTLS) {
339 *qctrl = no_ctl;
340 return 0;
341 }
342 *qctrl = cx23885_ctls[i].v;
343 return 0;
344 }
345
346 /* ------------------------------------------------------------------- */
347 /* resource management */
348
349 static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh,
350 unsigned int bit)
351 {
352 dprintk(1, "%s()\n", __func__);
353 if (fh->resources & bit)
354 /* have it already allocated */
355 return 1;
356
357 /* is it free? */
358 mutex_lock(&dev->lock);
359 if (dev->resources & bit) {
360 /* no, someone else uses it */
361 mutex_unlock(&dev->lock);
362 return 0;
363 }
364 /* it's free, grab it */
365 fh->resources |= bit;
366 dev->resources |= bit;
367 dprintk(1, "res: get %d\n", bit);
368 mutex_unlock(&dev->lock);
369 return 1;
370 }
371
372 static int res_check(struct cx23885_fh *fh, unsigned int bit)
373 {
374 return fh->resources & bit;
375 }
376
377 static int res_locked(struct cx23885_dev *dev, unsigned int bit)
378 {
379 return dev->resources & bit;
380 }
381
382 static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh,
383 unsigned int bits)
384 {
385 BUG_ON((fh->resources & bits) != bits);
386 dprintk(1, "%s()\n", __func__);
387
388 mutex_lock(&dev->lock);
389 fh->resources &= ~bits;
390 dev->resources &= ~bits;
391 dprintk(1, "res: put %d\n", bits);
392 mutex_unlock(&dev->lock);
393 }
394
395 static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
396 {
397 dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
398 __func__,
399 input, INPUT(input)->vmux,
400 INPUT(input)->gpio0, INPUT(input)->gpio1,
401 INPUT(input)->gpio2, INPUT(input)->gpio3);
402 dev->input = input;
403
404 /* Tell the internal A/V decoder */
405 v4l2_subdev_call(dev->sd_cx25840, video, s_routing,
406 INPUT(input)->vmux, 0, 0);
407
408 return 0;
409 }
410
411 /* ------------------------------------------------------------------ */
412 static int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width,
413 unsigned int height, enum v4l2_field field)
414 {
415 dprintk(1, "%s()\n", __func__);
416 return 0;
417 }
418
419 static int cx23885_start_video_dma(struct cx23885_dev *dev,
420 struct cx23885_dmaqueue *q,
421 struct cx23885_buffer *buf)
422 {
423 dprintk(1, "%s()\n", __func__);
424
425 /* setup fifo + format */
426 cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
427 buf->bpl, buf->risc.dma);
428 cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field);
429
430 /* reset counter */
431 cx_write(VID_A_GPCNT_CTL, 3);
432 q->count = 1;
433
434 /* enable irq */
435 cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01);
436 cx_set(VID_A_INT_MSK, 0x000011);
437
438 /* start dma */
439 cx_set(DEV_CNTRL2, (1<<5));
440 cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */
441
442 return 0;
443 }
444
445
446 static int cx23885_restart_video_queue(struct cx23885_dev *dev,
447 struct cx23885_dmaqueue *q)
448 {
449 struct cx23885_buffer *buf, *prev;
450 struct list_head *item;
451 dprintk(1, "%s()\n", __func__);
452
453 if (!list_empty(&q->active)) {
454 buf = list_entry(q->active.next, struct cx23885_buffer,
455 vb.queue);
456 dprintk(2, "restart_queue [%p/%d]: restart dma\n",
457 buf, buf->vb.i);
458 cx23885_start_video_dma(dev, q, buf);
459 list_for_each(item, &q->active) {
460 buf = list_entry(item, struct cx23885_buffer,
461 vb.queue);
462 buf->count = q->count++;
463 }
464 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
465 return 0;
466 }
467
468 prev = NULL;
469 for (;;) {
470 if (list_empty(&q->queued))
471 return 0;
472 buf = list_entry(q->queued.next, struct cx23885_buffer,
473 vb.queue);
474 if (NULL == prev) {
475 list_move_tail(&buf->vb.queue, &q->active);
476 cx23885_start_video_dma(dev, q, buf);
477 buf->vb.state = VIDEOBUF_ACTIVE;
478 buf->count = q->count++;
479 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
480 dprintk(2, "[%p/%d] restart_queue - first active\n",
481 buf, buf->vb.i);
482
483 } else if (prev->vb.width == buf->vb.width &&
484 prev->vb.height == buf->vb.height &&
485 prev->fmt == buf->fmt) {
486 list_move_tail(&buf->vb.queue, &q->active);
487 buf->vb.state = VIDEOBUF_ACTIVE;
488 buf->count = q->count++;
489 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
490 prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
491 dprintk(2, "[%p/%d] restart_queue - move to active\n",
492 buf, buf->vb.i);
493 } else {
494 return 0;
495 }
496 prev = buf;
497 }
498 }
499
500 static int buffer_setup(struct videobuf_queue *q, unsigned int *count,
501 unsigned int *size)
502 {
503 struct cx23885_fh *fh = q->priv_data;
504
505 *size = fh->fmt->depth*fh->width*fh->height >> 3;
506 if (0 == *count)
507 *count = 32;
508 while (*size * *count > vid_limit * 1024 * 1024)
509 (*count)--;
510 return 0;
511 }
512
513 static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
514 enum v4l2_field field)
515 {
516 struct cx23885_fh *fh = q->priv_data;
517 struct cx23885_dev *dev = fh->dev;
518 struct cx23885_buffer *buf =
519 container_of(vb, struct cx23885_buffer, vb);
520 int rc, init_buffer = 0;
521 u32 line0_offset, line1_offset;
522 struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
523
524 BUG_ON(NULL == fh->fmt);
525 if (fh->width < 48 || fh->width > norm_maxw(dev->tvnorm) ||
526 fh->height < 32 || fh->height > norm_maxh(dev->tvnorm))
527 return -EINVAL;
528 buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
529 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
530 return -EINVAL;
531
532 if (buf->fmt != fh->fmt ||
533 buf->vb.width != fh->width ||
534 buf->vb.height != fh->height ||
535 buf->vb.field != field) {
536 buf->fmt = fh->fmt;
537 buf->vb.width = fh->width;
538 buf->vb.height = fh->height;
539 buf->vb.field = field;
540 init_buffer = 1;
541 }
542
543 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
544 init_buffer = 1;
545 rc = videobuf_iolock(q, &buf->vb, NULL);
546 if (0 != rc)
547 goto fail;
548 }
549
550 if (init_buffer) {
551 buf->bpl = buf->vb.width * buf->fmt->depth >> 3;
552 switch (buf->vb.field) {
553 case V4L2_FIELD_TOP:
554 cx23885_risc_buffer(dev->pci, &buf->risc,
555 dma->sglist, 0, UNSET,
556 buf->bpl, 0, buf->vb.height);
557 break;
558 case V4L2_FIELD_BOTTOM:
559 cx23885_risc_buffer(dev->pci, &buf->risc,
560 dma->sglist, UNSET, 0,
561 buf->bpl, 0, buf->vb.height);
562 break;
563 case V4L2_FIELD_INTERLACED:
564 if (dev->tvnorm & V4L2_STD_NTSC) {
565 /* cx25840 transmits NTSC bottom field first */
566 dprintk(1, "%s() Creating NTSC risc\n",
567 __func__);
568 line0_offset = buf->bpl;
569 line1_offset = 0;
570 } else {
571 /* All other formats are top field first */
572 dprintk(1, "%s() Creating PAL/SECAM risc\n",
573 __func__);
574 line0_offset = 0;
575 line1_offset = buf->bpl;
576 }
577 cx23885_risc_buffer(dev->pci, &buf->risc,
578 dma->sglist, line0_offset,
579 line1_offset,
580 buf->bpl, buf->bpl,
581 buf->vb.height >> 1);
582 break;
583 case V4L2_FIELD_SEQ_TB:
584 cx23885_risc_buffer(dev->pci, &buf->risc,
585 dma->sglist,
586 0, buf->bpl * (buf->vb.height >> 1),
587 buf->bpl, 0,
588 buf->vb.height >> 1);
589 break;
590 case V4L2_FIELD_SEQ_BT:
591 cx23885_risc_buffer(dev->pci, &buf->risc,
592 dma->sglist,
593 buf->bpl * (buf->vb.height >> 1), 0,
594 buf->bpl, 0,
595 buf->vb.height >> 1);
596 break;
597 default:
598 BUG();
599 }
600 }
601 dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
602 buf, buf->vb.i,
603 fh->width, fh->height, fh->fmt->depth, fh->fmt->name,
604 (unsigned long)buf->risc.dma);
605
606 buf->vb.state = VIDEOBUF_PREPARED;
607 return 0;
608
609 fail:
610 cx23885_free_buffer(q, buf);
611 return rc;
612 }
613
614 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
615 {
616 struct cx23885_buffer *buf = container_of(vb,
617 struct cx23885_buffer, vb);
618 struct cx23885_buffer *prev;
619 struct cx23885_fh *fh = vq->priv_data;
620 struct cx23885_dev *dev = fh->dev;
621 struct cx23885_dmaqueue *q = &dev->vidq;
622
623 /* add jump to stopper */
624 buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
625 buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
626 buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
627
628 if (!list_empty(&q->queued)) {
629 list_add_tail(&buf->vb.queue, &q->queued);
630 buf->vb.state = VIDEOBUF_QUEUED;
631 dprintk(2, "[%p/%d] buffer_queue - append to queued\n",
632 buf, buf->vb.i);
633
634 } else if (list_empty(&q->active)) {
635 list_add_tail(&buf->vb.queue, &q->active);
636 cx23885_start_video_dma(dev, q, buf);
637 buf->vb.state = VIDEOBUF_ACTIVE;
638 buf->count = q->count++;
639 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
640 dprintk(2, "[%p/%d] buffer_queue - first active\n",
641 buf, buf->vb.i);
642
643 } else {
644 prev = list_entry(q->active.prev, struct cx23885_buffer,
645 vb.queue);
646 if (prev->vb.width == buf->vb.width &&
647 prev->vb.height == buf->vb.height &&
648 prev->fmt == buf->fmt) {
649 list_add_tail(&buf->vb.queue, &q->active);
650 buf->vb.state = VIDEOBUF_ACTIVE;
651 buf->count = q->count++;
652 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
653 /* 64 bit bits 63-32 */
654 prev->risc.jmp[2] = cpu_to_le32(0);
655 dprintk(2, "[%p/%d] buffer_queue - append to active\n",
656 buf, buf->vb.i);
657
658 } else {
659 list_add_tail(&buf->vb.queue, &q->queued);
660 buf->vb.state = VIDEOBUF_QUEUED;
661 dprintk(2, "[%p/%d] buffer_queue - first queued\n",
662 buf, buf->vb.i);
663 }
664 }
665 }
666
667 static void buffer_release(struct videobuf_queue *q,
668 struct videobuf_buffer *vb)
669 {
670 struct cx23885_buffer *buf = container_of(vb,
671 struct cx23885_buffer, vb);
672
673 cx23885_free_buffer(q, buf);
674 }
675
676 static struct videobuf_queue_ops cx23885_video_qops = {
677 .buf_setup = buffer_setup,
678 .buf_prepare = buffer_prepare,
679 .buf_queue = buffer_queue,
680 .buf_release = buffer_release,
681 };
682
683 static struct videobuf_queue *get_queue(struct cx23885_fh *fh)
684 {
685 switch (fh->type) {
686 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
687 return &fh->vidq;
688 case V4L2_BUF_TYPE_VBI_CAPTURE:
689 return &fh->vbiq;
690 default:
691 BUG();
692 return NULL;
693 }
694 }
695
696 static int get_resource(struct cx23885_fh *fh)
697 {
698 switch (fh->type) {
699 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
700 return RESOURCE_VIDEO;
701 case V4L2_BUF_TYPE_VBI_CAPTURE:
702 return RESOURCE_VBI;
703 default:
704 BUG();
705 return 0;
706 }
707 }
708
709 static int video_open(struct file *file)
710 {
711 int minor = video_devdata(file)->minor;
712 struct cx23885_dev *h, *dev = NULL;
713 struct cx23885_fh *fh;
714 struct list_head *list;
715 enum v4l2_buf_type type = 0;
716 int radio = 0;
717
718 lock_kernel();
719 list_for_each(list, &cx23885_devlist) {
720 h = list_entry(list, struct cx23885_dev, devlist);
721 if (h->video_dev &&
722 h->video_dev->minor == minor) {
723 dev = h;
724 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
725 }
726 if (h->vbi_dev &&
727 h->vbi_dev->minor == minor) {
728 dev = h;
729 type = V4L2_BUF_TYPE_VBI_CAPTURE;
730 }
731 if (h->radio_dev &&
732 h->radio_dev->minor == minor) {
733 radio = 1;
734 dev = h;
735 }
736 }
737 if (NULL == dev) {
738 unlock_kernel();
739 return -ENODEV;
740 }
741
742 dprintk(1, "open minor=%d radio=%d type=%s\n",
743 minor, radio, v4l2_type_names[type]);
744
745 /* allocate + initialize per filehandle data */
746 fh = kzalloc(sizeof(*fh), GFP_KERNEL);
747 if (NULL == fh) {
748 unlock_kernel();
749 return -ENOMEM;
750 }
751 file->private_data = fh;
752 fh->dev = dev;
753 fh->radio = radio;
754 fh->type = type;
755 fh->width = 320;
756 fh->height = 240;
757 fh->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
758
759 videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops,
760 &dev->pci->dev, &dev->slock,
761 V4L2_BUF_TYPE_VIDEO_CAPTURE,
762 V4L2_FIELD_INTERLACED,
763 sizeof(struct cx23885_buffer),
764 fh);
765
766 dprintk(1, "post videobuf_queue_init()\n");
767
768 unlock_kernel();
769
770 return 0;
771 }
772
773 static ssize_t video_read(struct file *file, char __user *data,
774 size_t count, loff_t *ppos)
775 {
776 struct cx23885_fh *fh = file->private_data;
777
778 switch (fh->type) {
779 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
780 if (res_locked(fh->dev, RESOURCE_VIDEO))
781 return -EBUSY;
782 return videobuf_read_one(&fh->vidq, data, count, ppos,
783 file->f_flags & O_NONBLOCK);
784 case V4L2_BUF_TYPE_VBI_CAPTURE:
785 if (!res_get(fh->dev, fh, RESOURCE_VBI))
786 return -EBUSY;
787 return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1,
788 file->f_flags & O_NONBLOCK);
789 default:
790 BUG();
791 return 0;
792 }
793 }
794
795 static unsigned int video_poll(struct file *file,
796 struct poll_table_struct *wait)
797 {
798 struct cx23885_fh *fh = file->private_data;
799 struct cx23885_buffer *buf;
800 unsigned int rc = POLLERR;
801
802 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
803 if (!res_get(fh->dev, fh, RESOURCE_VBI))
804 return POLLERR;
805 return videobuf_poll_stream(file, &fh->vbiq, wait);
806 }
807
808 mutex_lock(&fh->vidq.vb_lock);
809 if (res_check(fh, RESOURCE_VIDEO)) {
810 /* streaming capture */
811 if (list_empty(&fh->vidq.stream))
812 goto done;
813 buf = list_entry(fh->vidq.stream.next,
814 struct cx23885_buffer, vb.stream);
815 } else {
816 /* read() capture */
817 buf = (struct cx23885_buffer *)fh->vidq.read_buf;
818 if (NULL == buf)
819 goto done;
820 }
821 poll_wait(file, &buf->vb.done, wait);
822 if (buf->vb.state == VIDEOBUF_DONE ||
823 buf->vb.state == VIDEOBUF_ERROR)
824 rc = POLLIN|POLLRDNORM;
825 else
826 rc = 0;
827 done:
828 mutex_unlock(&fh->vidq.vb_lock);
829 return rc;
830 }
831
832 static int video_release(struct file *file)
833 {
834 struct cx23885_fh *fh = file->private_data;
835 struct cx23885_dev *dev = fh->dev;
836
837 /* turn off overlay */
838 if (res_check(fh, RESOURCE_OVERLAY)) {
839 /* FIXME */
840 res_free(dev, fh, RESOURCE_OVERLAY);
841 }
842
843 /* stop video capture */
844 if (res_check(fh, RESOURCE_VIDEO)) {
845 videobuf_queue_cancel(&fh->vidq);
846 res_free(dev, fh, RESOURCE_VIDEO);
847 }
848 if (fh->vidq.read_buf) {
849 buffer_release(&fh->vidq, fh->vidq.read_buf);
850 kfree(fh->vidq.read_buf);
851 }
852
853 /* stop vbi capture */
854 if (res_check(fh, RESOURCE_VBI)) {
855 if (fh->vbiq.streaming)
856 videobuf_streamoff(&fh->vbiq);
857 if (fh->vbiq.reading)
858 videobuf_read_stop(&fh->vbiq);
859 res_free(dev, fh, RESOURCE_VBI);
860 }
861
862 videobuf_mmap_free(&fh->vidq);
863 file->private_data = NULL;
864 kfree(fh);
865
866 /* We are not putting the tuner to sleep here on exit, because
867 * we want to use the mpeg encoder in another session to capture
868 * tuner video. Closing this will result in no video to the encoder.
869 */
870
871 return 0;
872 }
873
874 static int video_mmap(struct file *file, struct vm_area_struct *vma)
875 {
876 struct cx23885_fh *fh = file->private_data;
877
878 return videobuf_mmap_mapper(get_queue(fh), vma);
879 }
880
881 /* ------------------------------------------------------------------ */
882 /* VIDEO CTRL IOCTLS */
883
884 static int cx23885_get_control(struct cx23885_dev *dev,
885 struct v4l2_control *ctl)
886 {
887 dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__);
888 call_all(dev, core, g_ctrl, ctl);
889 return 0;
890 }
891
892 static int cx23885_set_control(struct cx23885_dev *dev,
893 struct v4l2_control *ctl)
894 {
895 dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)"
896 " (disabled - no action)\n", __func__);
897 return 0;
898 }
899
900 static void init_controls(struct cx23885_dev *dev)
901 {
902 struct v4l2_control ctrl;
903 int i;
904
905 for (i = 0; i < CX23885_CTLS; i++) {
906 ctrl.id = cx23885_ctls[i].v.id;
907 ctrl.value = cx23885_ctls[i].v.default_value;
908
909 cx23885_set_control(dev, &ctrl);
910 }
911 }
912
913 /* ------------------------------------------------------------------ */
914 /* VIDEO IOCTLS */
915
916 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
917 struct v4l2_format *f)
918 {
919 struct cx23885_fh *fh = priv;
920
921 f->fmt.pix.width = fh->width;
922 f->fmt.pix.height = fh->height;
923 f->fmt.pix.field = fh->vidq.field;
924 f->fmt.pix.pixelformat = fh->fmt->fourcc;
925 f->fmt.pix.bytesperline =
926 (f->fmt.pix.width * fh->fmt->depth) >> 3;
927 f->fmt.pix.sizeimage =
928 f->fmt.pix.height * f->fmt.pix.bytesperline;
929
930 return 0;
931 }
932
933 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
934 struct v4l2_format *f)
935 {
936 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
937 struct cx23885_fmt *fmt;
938 enum v4l2_field field;
939 unsigned int maxw, maxh;
940
941 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
942 if (NULL == fmt)
943 return -EINVAL;
944
945 field = f->fmt.pix.field;
946 maxw = norm_maxw(dev->tvnorm);
947 maxh = norm_maxh(dev->tvnorm);
948
949 if (V4L2_FIELD_ANY == field) {
950 field = (f->fmt.pix.height > maxh/2)
951 ? V4L2_FIELD_INTERLACED
952 : V4L2_FIELD_BOTTOM;
953 }
954
955 switch (field) {
956 case V4L2_FIELD_TOP:
957 case V4L2_FIELD_BOTTOM:
958 maxh = maxh / 2;
959 break;
960 case V4L2_FIELD_INTERLACED:
961 break;
962 default:
963 return -EINVAL;
964 }
965
966 f->fmt.pix.field = field;
967 v4l_bound_align_image(&f->fmt.pix.width, 48, maxw, 2,
968 &f->fmt.pix.height, 32, maxh, 0, 0);
969 f->fmt.pix.bytesperline =
970 (f->fmt.pix.width * fmt->depth) >> 3;
971 f->fmt.pix.sizeimage =
972 f->fmt.pix.height * f->fmt.pix.bytesperline;
973
974 return 0;
975 }
976
977 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
978 struct v4l2_format *f)
979 {
980 struct cx23885_fh *fh = priv;
981 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
982 int err;
983
984 dprintk(2, "%s()\n", __func__);
985 err = vidioc_try_fmt_vid_cap(file, priv, f);
986
987 if (0 != err)
988 return err;
989 fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
990 fh->width = f->fmt.pix.width;
991 fh->height = f->fmt.pix.height;
992 fh->vidq.field = f->fmt.pix.field;
993 dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
994 fh->width, fh->height, fh->vidq.field);
995 call_all(dev, video, s_fmt, f);
996 return 0;
997 }
998
999 static int vidioc_querycap(struct file *file, void *priv,
1000 struct v4l2_capability *cap)
1001 {
1002 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1003
1004 strcpy(cap->driver, "cx23885");
1005 strlcpy(cap->card, cx23885_boards[dev->board].name,
1006 sizeof(cap->card));
1007 sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1008 cap->version = CX23885_VERSION_CODE;
1009 cap->capabilities =
1010 V4L2_CAP_VIDEO_CAPTURE |
1011 V4L2_CAP_READWRITE |
1012 V4L2_CAP_STREAMING |
1013 V4L2_CAP_VBI_CAPTURE;
1014 if (UNSET != dev->tuner_type)
1015 cap->capabilities |= V4L2_CAP_TUNER;
1016 return 0;
1017 }
1018
1019 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1020 struct v4l2_fmtdesc *f)
1021 {
1022 if (unlikely(f->index >= ARRAY_SIZE(formats)))
1023 return -EINVAL;
1024
1025 strlcpy(f->description, formats[f->index].name,
1026 sizeof(f->description));
1027 f->pixelformat = formats[f->index].fourcc;
1028
1029 return 0;
1030 }
1031
1032 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1033 static int vidiocgmbuf(struct file *file, void *priv,
1034 struct video_mbuf *mbuf)
1035 {
1036 struct cx23885_fh *fh = priv;
1037 struct videobuf_queue *q;
1038 struct v4l2_requestbuffers req;
1039 unsigned int i;
1040 int err;
1041
1042 q = get_queue(fh);
1043 memset(&req, 0, sizeof(req));
1044 req.type = q->type;
1045 req.count = 8;
1046 req.memory = V4L2_MEMORY_MMAP;
1047 err = videobuf_reqbufs(q, &req);
1048 if (err < 0)
1049 return err;
1050
1051 mbuf->frames = req.count;
1052 mbuf->size = 0;
1053 for (i = 0; i < mbuf->frames; i++) {
1054 mbuf->offsets[i] = q->bufs[i]->boff;
1055 mbuf->size += q->bufs[i]->bsize;
1056 }
1057 return 0;
1058 }
1059 #endif
1060
1061 static int vidioc_reqbufs(struct file *file, void *priv,
1062 struct v4l2_requestbuffers *p)
1063 {
1064 struct cx23885_fh *fh = priv;
1065 return videobuf_reqbufs(get_queue(fh), p);
1066 }
1067
1068 static int vidioc_querybuf(struct file *file, void *priv,
1069 struct v4l2_buffer *p)
1070 {
1071 struct cx23885_fh *fh = priv;
1072 return videobuf_querybuf(get_queue(fh), p);
1073 }
1074
1075 static int vidioc_qbuf(struct file *file, void *priv,
1076 struct v4l2_buffer *p)
1077 {
1078 struct cx23885_fh *fh = priv;
1079 return videobuf_qbuf(get_queue(fh), p);
1080 }
1081
1082 static int vidioc_dqbuf(struct file *file, void *priv,
1083 struct v4l2_buffer *p)
1084 {
1085 struct cx23885_fh *fh = priv;
1086 return videobuf_dqbuf(get_queue(fh), p,
1087 file->f_flags & O_NONBLOCK);
1088 }
1089
1090 static int vidioc_streamon(struct file *file, void *priv,
1091 enum v4l2_buf_type i)
1092 {
1093 struct cx23885_fh *fh = priv;
1094 struct cx23885_dev *dev = fh->dev;
1095 dprintk(1, "%s()\n", __func__);
1096
1097 if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
1098 return -EINVAL;
1099 if (unlikely(i != fh->type))
1100 return -EINVAL;
1101
1102 if (unlikely(!res_get(dev, fh, get_resource(fh))))
1103 return -EBUSY;
1104 return videobuf_streamon(get_queue(fh));
1105 }
1106
1107 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1108 {
1109 struct cx23885_fh *fh = priv;
1110 struct cx23885_dev *dev = fh->dev;
1111 int err, res;
1112 dprintk(1, "%s()\n", __func__);
1113
1114 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1115 return -EINVAL;
1116 if (i != fh->type)
1117 return -EINVAL;
1118
1119 res = get_resource(fh);
1120 err = videobuf_streamoff(get_queue(fh));
1121 if (err < 0)
1122 return err;
1123 res_free(dev, fh, res);
1124 return 0;
1125 }
1126
1127 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
1128 {
1129 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1130 dprintk(1, "%s()\n", __func__);
1131
1132 mutex_lock(&dev->lock);
1133 cx23885_set_tvnorm(dev, *tvnorms);
1134 mutex_unlock(&dev->lock);
1135
1136 return 0;
1137 }
1138
1139 static int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
1140 {
1141 static const char *iname[] = {
1142 [CX23885_VMUX_COMPOSITE1] = "Composite1",
1143 [CX23885_VMUX_COMPOSITE2] = "Composite2",
1144 [CX23885_VMUX_COMPOSITE3] = "Composite3",
1145 [CX23885_VMUX_COMPOSITE4] = "Composite4",
1146 [CX23885_VMUX_SVIDEO] = "S-Video",
1147 [CX23885_VMUX_TELEVISION] = "Television",
1148 [CX23885_VMUX_CABLE] = "Cable TV",
1149 [CX23885_VMUX_DVB] = "DVB",
1150 [CX23885_VMUX_DEBUG] = "for debug only",
1151 };
1152 unsigned int n;
1153 dprintk(1, "%s()\n", __func__);
1154
1155 n = i->index;
1156 if (n >= 4)
1157 return -EINVAL;
1158
1159 if (0 == INPUT(n)->type)
1160 return -EINVAL;
1161
1162 memset(i, 0, sizeof(*i));
1163 i->index = n;
1164 i->type = V4L2_INPUT_TYPE_CAMERA;
1165 strcpy(i->name, iname[INPUT(n)->type]);
1166 if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
1167 (CX23885_VMUX_CABLE == INPUT(n)->type))
1168 i->type = V4L2_INPUT_TYPE_TUNER;
1169 i->std = CX23885_NORMS;
1170 return 0;
1171 }
1172
1173 static int vidioc_enum_input(struct file *file, void *priv,
1174 struct v4l2_input *i)
1175 {
1176 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1177 dprintk(1, "%s()\n", __func__);
1178 return cx23885_enum_input(dev, i);
1179 }
1180
1181 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1182 {
1183 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1184
1185 *i = dev->input;
1186 dprintk(1, "%s() returns %d\n", __func__, *i);
1187 return 0;
1188 }
1189
1190 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1191 {
1192 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1193
1194 dprintk(1, "%s(%d)\n", __func__, i);
1195
1196 if (i >= 4) {
1197 dprintk(1, "%s() -EINVAL\n", __func__);
1198 return -EINVAL;
1199 }
1200
1201 mutex_lock(&dev->lock);
1202 cx23885_video_mux(dev, i);
1203 mutex_unlock(&dev->lock);
1204 return 0;
1205 }
1206
1207 static int vidioc_queryctrl(struct file *file, void *priv,
1208 struct v4l2_queryctrl *qctrl)
1209 {
1210 qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
1211 if (unlikely(qctrl->id == 0))
1212 return -EINVAL;
1213 return cx23885_ctrl_query(qctrl);
1214 }
1215
1216 static int vidioc_g_ctrl(struct file *file, void *priv,
1217 struct v4l2_control *ctl)
1218 {
1219 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1220
1221 return cx23885_get_control(dev, ctl);
1222 }
1223
1224 static int vidioc_s_ctrl(struct file *file, void *priv,
1225 struct v4l2_control *ctl)
1226 {
1227 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1228
1229 return cx23885_set_control(dev, ctl);
1230 }
1231
1232 static int vidioc_g_tuner(struct file *file, void *priv,
1233 struct v4l2_tuner *t)
1234 {
1235 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1236
1237 if (unlikely(UNSET == dev->tuner_type))
1238 return -EINVAL;
1239 if (0 != t->index)
1240 return -EINVAL;
1241
1242 strcpy(t->name, "Television");
1243 t->type = V4L2_TUNER_ANALOG_TV;
1244 t->capability = V4L2_TUNER_CAP_NORM;
1245 t->rangehigh = 0xffffffffUL;
1246 t->signal = 0xffff ; /* LOCKED */
1247 return 0;
1248 }
1249
1250 static int vidioc_s_tuner(struct file *file, void *priv,
1251 struct v4l2_tuner *t)
1252 {
1253 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1254
1255 if (UNSET == dev->tuner_type)
1256 return -EINVAL;
1257 if (0 != t->index)
1258 return -EINVAL;
1259 return 0;
1260 }
1261
1262 static int vidioc_g_frequency(struct file *file, void *priv,
1263 struct v4l2_frequency *f)
1264 {
1265 struct cx23885_fh *fh = priv;
1266 struct cx23885_dev *dev = fh->dev;
1267
1268 if (unlikely(UNSET == dev->tuner_type))
1269 return -EINVAL;
1270
1271 /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */
1272 f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1273 f->frequency = dev->freq;
1274
1275 call_all(dev, tuner, g_frequency, f);
1276
1277 return 0;
1278 }
1279
1280 static int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f)
1281 {
1282 if (unlikely(UNSET == dev->tuner_type))
1283 return -EINVAL;
1284 if (unlikely(f->tuner != 0))
1285 return -EINVAL;
1286
1287 mutex_lock(&dev->lock);
1288 dev->freq = f->frequency;
1289
1290 call_all(dev, tuner, s_frequency, f);
1291
1292 /* When changing channels it is required to reset TVAUDIO */
1293 msleep(10);
1294
1295 mutex_unlock(&dev->lock);
1296
1297 return 0;
1298 }
1299
1300 static int vidioc_s_frequency(struct file *file, void *priv,
1301 struct v4l2_frequency *f)
1302 {
1303 struct cx23885_fh *fh = priv;
1304 struct cx23885_dev *dev = fh->dev;
1305
1306 if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1307 return -EINVAL;
1308 if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1309 return -EINVAL;
1310
1311 return
1312 cx23885_set_freq(dev, f);
1313 }
1314
1315 #ifdef CONFIG_VIDEO_ADV_DEBUG
1316 static int vidioc_g_register(struct file *file, void *fh,
1317 struct v4l2_dbg_register *reg)
1318 {
1319 struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
1320
1321 if (!v4l2_chip_match_host(&reg->match))
1322 return -EINVAL;
1323
1324 call_all(dev, core, g_register, reg);
1325
1326 return 0;
1327 }
1328
1329 static int vidioc_s_register(struct file *file, void *fh,
1330 struct v4l2_dbg_register *reg)
1331 {
1332 struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
1333
1334 if (!v4l2_chip_match_host(&reg->match))
1335 return -EINVAL;
1336
1337 call_all(dev, core, s_register, reg);
1338
1339 return 0;
1340 }
1341 #endif
1342
1343 /* ----------------------------------------------------------- */
1344
1345 static void cx23885_vid_timeout(unsigned long data)
1346 {
1347 struct cx23885_dev *dev = (struct cx23885_dev *)data;
1348 struct cx23885_dmaqueue *q = &dev->vidq;
1349 struct cx23885_buffer *buf;
1350 unsigned long flags;
1351
1352 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1353
1354 cx_clear(VID_A_DMA_CTL, 0x11);
1355
1356 spin_lock_irqsave(&dev->slock, flags);
1357 while (!list_empty(&q->active)) {
1358 buf = list_entry(q->active.next,
1359 struct cx23885_buffer, vb.queue);
1360 list_del(&buf->vb.queue);
1361 buf->vb.state = VIDEOBUF_ERROR;
1362 wake_up(&buf->vb.done);
1363 printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n",
1364 dev->name, buf, buf->vb.i,
1365 (unsigned long)buf->risc.dma);
1366 }
1367 cx23885_restart_video_queue(dev, q);
1368 spin_unlock_irqrestore(&dev->slock, flags);
1369 }
1370
1371 int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
1372 {
1373 u32 mask, count;
1374 int handled = 0;
1375
1376 mask = cx_read(VID_A_INT_MSK);
1377 if (0 == (status & mask))
1378 return handled;
1379 cx_write(VID_A_INT_STAT, status);
1380
1381 dprintk(2, "%s() status = 0x%08x\n", __func__, status);
1382 /* risc op code error */
1383 if (status & (1 << 16)) {
1384 printk(KERN_WARNING "%s/0: video risc op code error\n",
1385 dev->name);
1386 cx_clear(VID_A_DMA_CTL, 0x11);
1387 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1388 }
1389
1390 /* risc1 y */
1391 if (status & 0x01) {
1392 spin_lock(&dev->slock);
1393 count = cx_read(VID_A_GPCNT);
1394 cx23885_video_wakeup(dev, &dev->vidq, count);
1395 spin_unlock(&dev->slock);
1396 handled++;
1397 }
1398 /* risc2 y */
1399 if (status & 0x10) {
1400 dprintk(2, "stopper video\n");
1401 spin_lock(&dev->slock);
1402 cx23885_restart_video_queue(dev, &dev->vidq);
1403 spin_unlock(&dev->slock);
1404 handled++;
1405 }
1406
1407 return handled;
1408 }
1409
1410 /* ----------------------------------------------------------- */
1411 /* exported stuff */
1412
1413 static const struct v4l2_file_operations video_fops = {
1414 .owner = THIS_MODULE,
1415 .open = video_open,
1416 .release = video_release,
1417 .read = video_read,
1418 .poll = video_poll,
1419 .mmap = video_mmap,
1420 .ioctl = video_ioctl2,
1421 };
1422
1423 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1424 .vidioc_querycap = vidioc_querycap,
1425 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1426 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1427 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1428 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1429 .vidioc_g_fmt_vbi_cap = cx23885_vbi_fmt,
1430 .vidioc_try_fmt_vbi_cap = cx23885_vbi_fmt,
1431 .vidioc_s_fmt_vbi_cap = cx23885_vbi_fmt,
1432 .vidioc_reqbufs = vidioc_reqbufs,
1433 .vidioc_querybuf = vidioc_querybuf,
1434 .vidioc_qbuf = vidioc_qbuf,
1435 .vidioc_dqbuf = vidioc_dqbuf,
1436 .vidioc_s_std = vidioc_s_std,
1437 .vidioc_enum_input = vidioc_enum_input,
1438 .vidioc_g_input = vidioc_g_input,
1439 .vidioc_s_input = vidioc_s_input,
1440 .vidioc_queryctrl = vidioc_queryctrl,
1441 .vidioc_g_ctrl = vidioc_g_ctrl,
1442 .vidioc_s_ctrl = vidioc_s_ctrl,
1443 .vidioc_streamon = vidioc_streamon,
1444 .vidioc_streamoff = vidioc_streamoff,
1445 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1446 .vidiocgmbuf = vidiocgmbuf,
1447 #endif
1448 .vidioc_g_tuner = vidioc_g_tuner,
1449 .vidioc_s_tuner = vidioc_s_tuner,
1450 .vidioc_g_frequency = vidioc_g_frequency,
1451 .vidioc_s_frequency = vidioc_s_frequency,
1452 #ifdef CONFIG_VIDEO_ADV_DEBUG
1453 .vidioc_g_register = vidioc_g_register,
1454 .vidioc_s_register = vidioc_s_register,
1455 #endif
1456 };
1457
1458 static struct video_device cx23885_vbi_template;
1459 static struct video_device cx23885_video_template = {
1460 .name = "cx23885-video",
1461 .fops = &video_fops,
1462 .minor = -1,
1463 .ioctl_ops = &video_ioctl_ops,
1464 .tvnorms = CX23885_NORMS,
1465 .current_norm = V4L2_STD_NTSC_M,
1466 };
1467
1468 static const struct v4l2_file_operations radio_fops = {
1469 .owner = THIS_MODULE,
1470 .open = video_open,
1471 .release = video_release,
1472 .ioctl = video_ioctl2,
1473 };
1474
1475
1476 void cx23885_video_unregister(struct cx23885_dev *dev)
1477 {
1478 dprintk(1, "%s()\n", __func__);
1479 cx_clear(PCI_INT_MSK, 1);
1480
1481 if (dev->video_dev) {
1482 if (-1 != dev->video_dev->minor)
1483 video_unregister_device(dev->video_dev);
1484 else
1485 video_device_release(dev->video_dev);
1486 dev->video_dev = NULL;
1487
1488 btcx_riscmem_free(dev->pci, &dev->vidq.stopper);
1489 }
1490 }
1491
1492 int cx23885_video_register(struct cx23885_dev *dev)
1493 {
1494 int err;
1495
1496 dprintk(1, "%s()\n", __func__);
1497 spin_lock_init(&dev->slock);
1498
1499 /* Initialize VBI template */
1500 memcpy(&cx23885_vbi_template, &cx23885_video_template,
1501 sizeof(cx23885_vbi_template));
1502 strcpy(cx23885_vbi_template.name, "cx23885-vbi");
1503
1504 dev->tvnorm = cx23885_video_template.current_norm;
1505
1506 /* init video dma queues */
1507 INIT_LIST_HEAD(&dev->vidq.active);
1508 INIT_LIST_HEAD(&dev->vidq.queued);
1509 dev->vidq.timeout.function = cx23885_vid_timeout;
1510 dev->vidq.timeout.data = (unsigned long)dev;
1511 init_timer(&dev->vidq.timeout);
1512 cx23885_risc_stopper(dev->pci, &dev->vidq.stopper,
1513 VID_A_DMA_CTL, 0x11, 0x00);
1514
1515 /* Don't enable VBI yet */
1516 cx_set(PCI_INT_MSK, 1);
1517
1518 if (TUNER_ABSENT != dev->tuner_type) {
1519 struct v4l2_subdev *sd = NULL;
1520
1521 if (dev->tuner_addr)
1522 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1523 &dev->i2c_bus[1].i2c_adap,
1524 "tuner", "tuner", dev->tuner_addr, NULL);
1525 else
1526 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1527 &dev->i2c_bus[1].i2c_adap,
1528 "tuner", "tuner", 0, v4l2_i2c_tuner_addrs(ADDRS_TV));
1529 if (sd) {
1530 struct tuner_setup tun_setup;
1531
1532 tun_setup.mode_mask = T_ANALOG_TV;
1533 tun_setup.type = dev->tuner_type;
1534 tun_setup.addr = v4l2_i2c_subdev_addr(sd);
1535
1536 v4l2_subdev_call(sd, tuner, s_type_addr, &tun_setup);
1537 }
1538 }
1539
1540
1541 /* register v4l devices */
1542 dev->video_dev = cx23885_vdev_init(dev, dev->pci,
1543 &cx23885_video_template, "video");
1544 err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
1545 video_nr[dev->nr]);
1546 if (err < 0) {
1547 printk(KERN_INFO "%s: can't register video device\n",
1548 dev->name);
1549 goto fail_unreg;
1550 }
1551 printk(KERN_INFO "%s/0: registered device video%d [v4l2]\n",
1552 dev->name, dev->video_dev->num);
1553 /* initial device configuration */
1554 mutex_lock(&dev->lock);
1555 cx23885_set_tvnorm(dev, dev->tvnorm);
1556 init_controls(dev);
1557 cx23885_video_mux(dev, 0);
1558 mutex_unlock(&dev->lock);
1559
1560 return 0;
1561
1562 fail_unreg:
1563 cx23885_video_unregister(dev);
1564 return err;
1565 }
1566
Linux with added FPC-III support