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V4L/DVB (13553): v4l: Use the video_is_registered function in device drivers
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / video / cx23885 / cx23885-video.c
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 #include "cx23885-ioctl.h"
39
40 MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
41 MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
42 MODULE_LICENSE("GPL");
43
44 /* ------------------------------------------------------------------ */
45
46 static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
47 static unsigned int vbi_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
48 static unsigned int radio_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
49
50 module_param_array(video_nr, int, NULL, 0444);
51 module_param_array(vbi_nr, int, NULL, 0444);
52 module_param_array(radio_nr, int, NULL, 0444);
53
54 MODULE_PARM_DESC(video_nr, "video device numbers");
55 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
56 MODULE_PARM_DESC(radio_nr, "radio device numbers");
57
58 static unsigned int video_debug;
59 module_param(video_debug, int, 0644);
60 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
61
62 static unsigned int irq_debug;
63 module_param(irq_debug, int, 0644);
64 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
65
66 static unsigned int vid_limit = 16;
67 module_param(vid_limit, int, 0644);
68 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
69
70 #define dprintk(level, fmt, arg...)\
71 do { if (video_debug >= level)\
72 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
73 } while (0)
74
75 /* ------------------------------------------------------------------- */
76 /* static data */
77
78 #define FORMAT_FLAGS_PACKED 0x01
79
80 static struct cx23885_fmt formats[] = {
81 {
82 .name = "8 bpp, gray",
83 .fourcc = V4L2_PIX_FMT_GREY,
84 .depth = 8,
85 .flags = FORMAT_FLAGS_PACKED,
86 }, {
87 .name = "15 bpp RGB, le",
88 .fourcc = V4L2_PIX_FMT_RGB555,
89 .depth = 16,
90 .flags = FORMAT_FLAGS_PACKED,
91 }, {
92 .name = "15 bpp RGB, be",
93 .fourcc = V4L2_PIX_FMT_RGB555X,
94 .depth = 16,
95 .flags = FORMAT_FLAGS_PACKED,
96 }, {
97 .name = "16 bpp RGB, le",
98 .fourcc = V4L2_PIX_FMT_RGB565,
99 .depth = 16,
100 .flags = FORMAT_FLAGS_PACKED,
101 }, {
102 .name = "16 bpp RGB, be",
103 .fourcc = V4L2_PIX_FMT_RGB565X,
104 .depth = 16,
105 .flags = FORMAT_FLAGS_PACKED,
106 }, {
107 .name = "24 bpp RGB, le",
108 .fourcc = V4L2_PIX_FMT_BGR24,
109 .depth = 24,
110 .flags = FORMAT_FLAGS_PACKED,
111 }, {
112 .name = "32 bpp RGB, le",
113 .fourcc = V4L2_PIX_FMT_BGR32,
114 .depth = 32,
115 .flags = FORMAT_FLAGS_PACKED,
116 }, {
117 .name = "32 bpp RGB, be",
118 .fourcc = V4L2_PIX_FMT_RGB32,
119 .depth = 32,
120 .flags = FORMAT_FLAGS_PACKED,
121 }, {
122 .name = "4:2:2, packed, YUYV",
123 .fourcc = V4L2_PIX_FMT_YUYV,
124 .depth = 16,
125 .flags = FORMAT_FLAGS_PACKED,
126 }, {
127 .name = "4:2:2, packed, UYVY",
128 .fourcc = V4L2_PIX_FMT_UYVY,
129 .depth = 16,
130 .flags = FORMAT_FLAGS_PACKED,
131 },
132 };
133
134 static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc)
135 {
136 unsigned int i;
137
138 for (i = 0; i < ARRAY_SIZE(formats); i++)
139 if (formats[i].fourcc == fourcc)
140 return formats+i;
141
142 printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc);
143 return NULL;
144 }
145
146 /* ------------------------------------------------------------------- */
147
148 static const struct v4l2_queryctrl no_ctl = {
149 .name = "42",
150 .flags = V4L2_CTRL_FLAG_DISABLED,
151 };
152
153 static struct cx23885_ctrl cx23885_ctls[] = {
154 /* --- video --- */
155 {
156 .v = {
157 .id = V4L2_CID_BRIGHTNESS,
158 .name = "Brightness",
159 .minimum = 0x00,
160 .maximum = 0xff,
161 .step = 1,
162 .default_value = 0x7f,
163 .type = V4L2_CTRL_TYPE_INTEGER,
164 },
165 .off = 128,
166 .reg = LUMA_CTRL,
167 .mask = 0x00ff,
168 .shift = 0,
169 }, {
170 .v = {
171 .id = V4L2_CID_CONTRAST,
172 .name = "Contrast",
173 .minimum = 0,
174 .maximum = 0xff,
175 .step = 1,
176 .default_value = 0x3f,
177 .type = V4L2_CTRL_TYPE_INTEGER,
178 },
179 .off = 0,
180 .reg = LUMA_CTRL,
181 .mask = 0xff00,
182 .shift = 8,
183 }, {
184 .v = {
185 .id = V4L2_CID_HUE,
186 .name = "Hue",
187 .minimum = 0,
188 .maximum = 0xff,
189 .step = 1,
190 .default_value = 0x7f,
191 .type = V4L2_CTRL_TYPE_INTEGER,
192 },
193 .off = 128,
194 .reg = CHROMA_CTRL,
195 .mask = 0xff0000,
196 .shift = 16,
197 }, {
198 /* strictly, this only describes only U saturation.
199 * V saturation is handled specially through code.
200 */
201 .v = {
202 .id = V4L2_CID_SATURATION,
203 .name = "Saturation",
204 .minimum = 0,
205 .maximum = 0xff,
206 .step = 1,
207 .default_value = 0x7f,
208 .type = V4L2_CTRL_TYPE_INTEGER,
209 },
210 .off = 0,
211 .reg = CHROMA_CTRL,
212 .mask = 0x00ff,
213 .shift = 0,
214 }, {
215 /* --- audio --- */
216 .v = {
217 .id = V4L2_CID_AUDIO_MUTE,
218 .name = "Mute",
219 .minimum = 0,
220 .maximum = 1,
221 .default_value = 1,
222 .type = V4L2_CTRL_TYPE_BOOLEAN,
223 },
224 .reg = PATH1_CTL1,
225 .mask = (0x1f << 24),
226 .shift = 24,
227 }, {
228 .v = {
229 .id = V4L2_CID_AUDIO_VOLUME,
230 .name = "Volume",
231 .minimum = 0,
232 .maximum = 0x3f,
233 .step = 1,
234 .default_value = 0x3f,
235 .type = V4L2_CTRL_TYPE_INTEGER,
236 },
237 .reg = PATH1_VOL_CTL,
238 .mask = 0xff,
239 .shift = 0,
240 }
241 };
242 static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls);
243
244 /* Must be sorted from low to high control ID! */
245 static const u32 cx23885_user_ctrls[] = {
246 V4L2_CID_USER_CLASS,
247 V4L2_CID_BRIGHTNESS,
248 V4L2_CID_CONTRAST,
249 V4L2_CID_SATURATION,
250 V4L2_CID_HUE,
251 V4L2_CID_AUDIO_VOLUME,
252 V4L2_CID_AUDIO_MUTE,
253 0
254 };
255
256 static const u32 *ctrl_classes[] = {
257 cx23885_user_ctrls,
258 NULL
259 };
260
261 static void cx23885_video_wakeup(struct cx23885_dev *dev,
262 struct cx23885_dmaqueue *q, u32 count)
263 {
264 struct cx23885_buffer *buf;
265 int bc;
266
267 for (bc = 0;; bc++) {
268 if (list_empty(&q->active))
269 break;
270 buf = list_entry(q->active.next,
271 struct cx23885_buffer, vb.queue);
272
273 /* count comes from the hw and is is 16bit wide --
274 * this trick handles wrap-arounds correctly for
275 * up to 32767 buffers in flight... */
276 if ((s16) (count - buf->count) < 0)
277 break;
278
279 do_gettimeofday(&buf->vb.ts);
280 dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i,
281 count, buf->count);
282 buf->vb.state = VIDEOBUF_DONE;
283 list_del(&buf->vb.queue);
284 wake_up(&buf->vb.done);
285 }
286 if (list_empty(&q->active))
287 del_timer(&q->timeout);
288 else
289 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
290 if (bc != 1)
291 printk(KERN_ERR "%s: %d buffers handled (should be 1)\n",
292 __func__, bc);
293 }
294
295 static int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
296 {
297 dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
298 __func__,
299 (unsigned int)norm,
300 v4l2_norm_to_name(norm));
301
302 dev->tvnorm = norm;
303
304 call_all(dev, core, s_std, norm);
305
306 return 0;
307 }
308
309 static struct video_device *cx23885_vdev_init(struct cx23885_dev *dev,
310 struct pci_dev *pci,
311 struct video_device *template,
312 char *type)
313 {
314 struct video_device *vfd;
315 dprintk(1, "%s()\n", __func__);
316
317 vfd = video_device_alloc();
318 if (NULL == vfd)
319 return NULL;
320 *vfd = *template;
321 vfd->minor = -1;
322 vfd->v4l2_dev = &dev->v4l2_dev;
323 vfd->release = video_device_release;
324 snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
325 dev->name, type, cx23885_boards[dev->board].name);
326 return vfd;
327 }
328
329 static int cx23885_ctrl_query(struct v4l2_queryctrl *qctrl)
330 {
331 int i;
332
333 if (qctrl->id < V4L2_CID_BASE ||
334 qctrl->id >= V4L2_CID_LASTP1)
335 return -EINVAL;
336 for (i = 0; i < CX23885_CTLS; i++)
337 if (cx23885_ctls[i].v.id == qctrl->id)
338 break;
339 if (i == CX23885_CTLS) {
340 *qctrl = no_ctl;
341 return 0;
342 }
343 *qctrl = cx23885_ctls[i].v;
344 return 0;
345 }
346
347 /* ------------------------------------------------------------------- */
348 /* resource management */
349
350 static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh,
351 unsigned int bit)
352 {
353 dprintk(1, "%s()\n", __func__);
354 if (fh->resources & bit)
355 /* have it already allocated */
356 return 1;
357
358 /* is it free? */
359 mutex_lock(&dev->lock);
360 if (dev->resources & bit) {
361 /* no, someone else uses it */
362 mutex_unlock(&dev->lock);
363 return 0;
364 }
365 /* it's free, grab it */
366 fh->resources |= bit;
367 dev->resources |= bit;
368 dprintk(1, "res: get %d\n", bit);
369 mutex_unlock(&dev->lock);
370 return 1;
371 }
372
373 static int res_check(struct cx23885_fh *fh, unsigned int bit)
374 {
375 return fh->resources & bit;
376 }
377
378 static int res_locked(struct cx23885_dev *dev, unsigned int bit)
379 {
380 return dev->resources & bit;
381 }
382
383 static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh,
384 unsigned int bits)
385 {
386 BUG_ON((fh->resources & bits) != bits);
387 dprintk(1, "%s()\n", __func__);
388
389 mutex_lock(&dev->lock);
390 fh->resources &= ~bits;
391 dev->resources &= ~bits;
392 dprintk(1, "res: put %d\n", bits);
393 mutex_unlock(&dev->lock);
394 }
395
396 static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
397 {
398 dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
399 __func__,
400 input, INPUT(input)->vmux,
401 INPUT(input)->gpio0, INPUT(input)->gpio1,
402 INPUT(input)->gpio2, INPUT(input)->gpio3);
403 dev->input = input;
404
405 if (dev->board == CX23885_BOARD_MYGICA_X8506 ||
406 dev->board == CX23885_BOARD_MAGICPRO_PROHDTVE2) {
407 /* Select Analog TV */
408 if (INPUT(input)->type == CX23885_VMUX_TELEVISION)
409 cx23885_gpio_clear(dev, GPIO_0);
410 }
411
412 /* Tell the internal A/V decoder */
413 v4l2_subdev_call(dev->sd_cx25840, video, s_routing,
414 INPUT(input)->vmux, 0, 0);
415
416 return 0;
417 }
418
419 /* ------------------------------------------------------------------ */
420 static int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width,
421 unsigned int height, enum v4l2_field field)
422 {
423 dprintk(1, "%s()\n", __func__);
424 return 0;
425 }
426
427 static int cx23885_start_video_dma(struct cx23885_dev *dev,
428 struct cx23885_dmaqueue *q,
429 struct cx23885_buffer *buf)
430 {
431 dprintk(1, "%s()\n", __func__);
432
433 /* setup fifo + format */
434 cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
435 buf->bpl, buf->risc.dma);
436 cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field);
437
438 /* reset counter */
439 cx_write(VID_A_GPCNT_CTL, 3);
440 q->count = 1;
441
442 /* enable irq */
443 cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01);
444 cx_set(VID_A_INT_MSK, 0x000011);
445
446 /* start dma */
447 cx_set(DEV_CNTRL2, (1<<5));
448 cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */
449
450 return 0;
451 }
452
453
454 static int cx23885_restart_video_queue(struct cx23885_dev *dev,
455 struct cx23885_dmaqueue *q)
456 {
457 struct cx23885_buffer *buf, *prev;
458 struct list_head *item;
459 dprintk(1, "%s()\n", __func__);
460
461 if (!list_empty(&q->active)) {
462 buf = list_entry(q->active.next, struct cx23885_buffer,
463 vb.queue);
464 dprintk(2, "restart_queue [%p/%d]: restart dma\n",
465 buf, buf->vb.i);
466 cx23885_start_video_dma(dev, q, buf);
467 list_for_each(item, &q->active) {
468 buf = list_entry(item, struct cx23885_buffer,
469 vb.queue);
470 buf->count = q->count++;
471 }
472 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
473 return 0;
474 }
475
476 prev = NULL;
477 for (;;) {
478 if (list_empty(&q->queued))
479 return 0;
480 buf = list_entry(q->queued.next, struct cx23885_buffer,
481 vb.queue);
482 if (NULL == prev) {
483 list_move_tail(&buf->vb.queue, &q->active);
484 cx23885_start_video_dma(dev, q, buf);
485 buf->vb.state = VIDEOBUF_ACTIVE;
486 buf->count = q->count++;
487 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
488 dprintk(2, "[%p/%d] restart_queue - first active\n",
489 buf, buf->vb.i);
490
491 } else if (prev->vb.width == buf->vb.width &&
492 prev->vb.height == buf->vb.height &&
493 prev->fmt == buf->fmt) {
494 list_move_tail(&buf->vb.queue, &q->active);
495 buf->vb.state = VIDEOBUF_ACTIVE;
496 buf->count = q->count++;
497 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
498 prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
499 dprintk(2, "[%p/%d] restart_queue - move to active\n",
500 buf, buf->vb.i);
501 } else {
502 return 0;
503 }
504 prev = buf;
505 }
506 }
507
508 static int buffer_setup(struct videobuf_queue *q, unsigned int *count,
509 unsigned int *size)
510 {
511 struct cx23885_fh *fh = q->priv_data;
512
513 *size = fh->fmt->depth*fh->width*fh->height >> 3;
514 if (0 == *count)
515 *count = 32;
516 while (*size * *count > vid_limit * 1024 * 1024)
517 (*count)--;
518 return 0;
519 }
520
521 static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
522 enum v4l2_field field)
523 {
524 struct cx23885_fh *fh = q->priv_data;
525 struct cx23885_dev *dev = fh->dev;
526 struct cx23885_buffer *buf =
527 container_of(vb, struct cx23885_buffer, vb);
528 int rc, init_buffer = 0;
529 u32 line0_offset, line1_offset;
530 struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
531
532 BUG_ON(NULL == fh->fmt);
533 if (fh->width < 48 || fh->width > norm_maxw(dev->tvnorm) ||
534 fh->height < 32 || fh->height > norm_maxh(dev->tvnorm))
535 return -EINVAL;
536 buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
537 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
538 return -EINVAL;
539
540 if (buf->fmt != fh->fmt ||
541 buf->vb.width != fh->width ||
542 buf->vb.height != fh->height ||
543 buf->vb.field != field) {
544 buf->fmt = fh->fmt;
545 buf->vb.width = fh->width;
546 buf->vb.height = fh->height;
547 buf->vb.field = field;
548 init_buffer = 1;
549 }
550
551 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
552 init_buffer = 1;
553 rc = videobuf_iolock(q, &buf->vb, NULL);
554 if (0 != rc)
555 goto fail;
556 }
557
558 if (init_buffer) {
559 buf->bpl = buf->vb.width * buf->fmt->depth >> 3;
560 switch (buf->vb.field) {
561 case V4L2_FIELD_TOP:
562 cx23885_risc_buffer(dev->pci, &buf->risc,
563 dma->sglist, 0, UNSET,
564 buf->bpl, 0, buf->vb.height);
565 break;
566 case V4L2_FIELD_BOTTOM:
567 cx23885_risc_buffer(dev->pci, &buf->risc,
568 dma->sglist, UNSET, 0,
569 buf->bpl, 0, buf->vb.height);
570 break;
571 case V4L2_FIELD_INTERLACED:
572 if (dev->tvnorm & V4L2_STD_NTSC) {
573 /* cx25840 transmits NTSC bottom field first */
574 dprintk(1, "%s() Creating NTSC risc\n",
575 __func__);
576 line0_offset = buf->bpl;
577 line1_offset = 0;
578 } else {
579 /* All other formats are top field first */
580 dprintk(1, "%s() Creating PAL/SECAM risc\n",
581 __func__);
582 line0_offset = 0;
583 line1_offset = buf->bpl;
584 }
585 cx23885_risc_buffer(dev->pci, &buf->risc,
586 dma->sglist, line0_offset,
587 line1_offset,
588 buf->bpl, buf->bpl,
589 buf->vb.height >> 1);
590 break;
591 case V4L2_FIELD_SEQ_TB:
592 cx23885_risc_buffer(dev->pci, &buf->risc,
593 dma->sglist,
594 0, buf->bpl * (buf->vb.height >> 1),
595 buf->bpl, 0,
596 buf->vb.height >> 1);
597 break;
598 case V4L2_FIELD_SEQ_BT:
599 cx23885_risc_buffer(dev->pci, &buf->risc,
600 dma->sglist,
601 buf->bpl * (buf->vb.height >> 1), 0,
602 buf->bpl, 0,
603 buf->vb.height >> 1);
604 break;
605 default:
606 BUG();
607 }
608 }
609 dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
610 buf, buf->vb.i,
611 fh->width, fh->height, fh->fmt->depth, fh->fmt->name,
612 (unsigned long)buf->risc.dma);
613
614 buf->vb.state = VIDEOBUF_PREPARED;
615 return 0;
616
617 fail:
618 cx23885_free_buffer(q, buf);
619 return rc;
620 }
621
622 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
623 {
624 struct cx23885_buffer *buf = container_of(vb,
625 struct cx23885_buffer, vb);
626 struct cx23885_buffer *prev;
627 struct cx23885_fh *fh = vq->priv_data;
628 struct cx23885_dev *dev = fh->dev;
629 struct cx23885_dmaqueue *q = &dev->vidq;
630
631 /* add jump to stopper */
632 buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
633 buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
634 buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
635
636 if (!list_empty(&q->queued)) {
637 list_add_tail(&buf->vb.queue, &q->queued);
638 buf->vb.state = VIDEOBUF_QUEUED;
639 dprintk(2, "[%p/%d] buffer_queue - append to queued\n",
640 buf, buf->vb.i);
641
642 } else if (list_empty(&q->active)) {
643 list_add_tail(&buf->vb.queue, &q->active);
644 cx23885_start_video_dma(dev, q, buf);
645 buf->vb.state = VIDEOBUF_ACTIVE;
646 buf->count = q->count++;
647 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
648 dprintk(2, "[%p/%d] buffer_queue - first active\n",
649 buf, buf->vb.i);
650
651 } else {
652 prev = list_entry(q->active.prev, struct cx23885_buffer,
653 vb.queue);
654 if (prev->vb.width == buf->vb.width &&
655 prev->vb.height == buf->vb.height &&
656 prev->fmt == buf->fmt) {
657 list_add_tail(&buf->vb.queue, &q->active);
658 buf->vb.state = VIDEOBUF_ACTIVE;
659 buf->count = q->count++;
660 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
661 /* 64 bit bits 63-32 */
662 prev->risc.jmp[2] = cpu_to_le32(0);
663 dprintk(2, "[%p/%d] buffer_queue - append to active\n",
664 buf, buf->vb.i);
665
666 } else {
667 list_add_tail(&buf->vb.queue, &q->queued);
668 buf->vb.state = VIDEOBUF_QUEUED;
669 dprintk(2, "[%p/%d] buffer_queue - first queued\n",
670 buf, buf->vb.i);
671 }
672 }
673 }
674
675 static void buffer_release(struct videobuf_queue *q,
676 struct videobuf_buffer *vb)
677 {
678 struct cx23885_buffer *buf = container_of(vb,
679 struct cx23885_buffer, vb);
680
681 cx23885_free_buffer(q, buf);
682 }
683
684 static struct videobuf_queue_ops cx23885_video_qops = {
685 .buf_setup = buffer_setup,
686 .buf_prepare = buffer_prepare,
687 .buf_queue = buffer_queue,
688 .buf_release = buffer_release,
689 };
690
691 static struct videobuf_queue *get_queue(struct cx23885_fh *fh)
692 {
693 switch (fh->type) {
694 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
695 return &fh->vidq;
696 case V4L2_BUF_TYPE_VBI_CAPTURE:
697 return &fh->vbiq;
698 default:
699 BUG();
700 return NULL;
701 }
702 }
703
704 static int get_resource(struct cx23885_fh *fh)
705 {
706 switch (fh->type) {
707 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
708 return RESOURCE_VIDEO;
709 case V4L2_BUF_TYPE_VBI_CAPTURE:
710 return RESOURCE_VBI;
711 default:
712 BUG();
713 return 0;
714 }
715 }
716
717 static int video_open(struct file *file)
718 {
719 int minor = video_devdata(file)->minor;
720 struct cx23885_dev *h, *dev = NULL;
721 struct cx23885_fh *fh;
722 struct list_head *list;
723 enum v4l2_buf_type type = 0;
724 int radio = 0;
725
726 lock_kernel();
727 list_for_each(list, &cx23885_devlist) {
728 h = list_entry(list, struct cx23885_dev, devlist);
729 if (h->video_dev &&
730 h->video_dev->minor == minor) {
731 dev = h;
732 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
733 }
734 if (h->vbi_dev &&
735 h->vbi_dev->minor == minor) {
736 dev = h;
737 type = V4L2_BUF_TYPE_VBI_CAPTURE;
738 }
739 if (h->radio_dev &&
740 h->radio_dev->minor == minor) {
741 radio = 1;
742 dev = h;
743 }
744 }
745 if (NULL == dev) {
746 unlock_kernel();
747 return -ENODEV;
748 }
749
750 dprintk(1, "open minor=%d radio=%d type=%s\n",
751 minor, radio, v4l2_type_names[type]);
752
753 /* allocate + initialize per filehandle data */
754 fh = kzalloc(sizeof(*fh), GFP_KERNEL);
755 if (NULL == fh) {
756 unlock_kernel();
757 return -ENOMEM;
758 }
759 file->private_data = fh;
760 fh->dev = dev;
761 fh->radio = radio;
762 fh->type = type;
763 fh->width = 320;
764 fh->height = 240;
765 fh->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
766
767 videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops,
768 &dev->pci->dev, &dev->slock,
769 V4L2_BUF_TYPE_VIDEO_CAPTURE,
770 V4L2_FIELD_INTERLACED,
771 sizeof(struct cx23885_buffer),
772 fh);
773
774 dprintk(1, "post videobuf_queue_init()\n");
775
776 unlock_kernel();
777
778 return 0;
779 }
780
781 static ssize_t video_read(struct file *file, char __user *data,
782 size_t count, loff_t *ppos)
783 {
784 struct cx23885_fh *fh = file->private_data;
785
786 switch (fh->type) {
787 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
788 if (res_locked(fh->dev, RESOURCE_VIDEO))
789 return -EBUSY;
790 return videobuf_read_one(&fh->vidq, data, count, ppos,
791 file->f_flags & O_NONBLOCK);
792 case V4L2_BUF_TYPE_VBI_CAPTURE:
793 if (!res_get(fh->dev, fh, RESOURCE_VBI))
794 return -EBUSY;
795 return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1,
796 file->f_flags & O_NONBLOCK);
797 default:
798 BUG();
799 return 0;
800 }
801 }
802
803 static unsigned int video_poll(struct file *file,
804 struct poll_table_struct *wait)
805 {
806 struct cx23885_fh *fh = file->private_data;
807 struct cx23885_buffer *buf;
808 unsigned int rc = POLLERR;
809
810 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
811 if (!res_get(fh->dev, fh, RESOURCE_VBI))
812 return POLLERR;
813 return videobuf_poll_stream(file, &fh->vbiq, wait);
814 }
815
816 mutex_lock(&fh->vidq.vb_lock);
817 if (res_check(fh, RESOURCE_VIDEO)) {
818 /* streaming capture */
819 if (list_empty(&fh->vidq.stream))
820 goto done;
821 buf = list_entry(fh->vidq.stream.next,
822 struct cx23885_buffer, vb.stream);
823 } else {
824 /* read() capture */
825 buf = (struct cx23885_buffer *)fh->vidq.read_buf;
826 if (NULL == buf)
827 goto done;
828 }
829 poll_wait(file, &buf->vb.done, wait);
830 if (buf->vb.state == VIDEOBUF_DONE ||
831 buf->vb.state == VIDEOBUF_ERROR)
832 rc = POLLIN|POLLRDNORM;
833 else
834 rc = 0;
835 done:
836 mutex_unlock(&fh->vidq.vb_lock);
837 return rc;
838 }
839
840 static int video_release(struct file *file)
841 {
842 struct cx23885_fh *fh = file->private_data;
843 struct cx23885_dev *dev = fh->dev;
844
845 /* turn off overlay */
846 if (res_check(fh, RESOURCE_OVERLAY)) {
847 /* FIXME */
848 res_free(dev, fh, RESOURCE_OVERLAY);
849 }
850
851 /* stop video capture */
852 if (res_check(fh, RESOURCE_VIDEO)) {
853 videobuf_queue_cancel(&fh->vidq);
854 res_free(dev, fh, RESOURCE_VIDEO);
855 }
856 if (fh->vidq.read_buf) {
857 buffer_release(&fh->vidq, fh->vidq.read_buf);
858 kfree(fh->vidq.read_buf);
859 }
860
861 /* stop vbi capture */
862 if (res_check(fh, RESOURCE_VBI)) {
863 if (fh->vbiq.streaming)
864 videobuf_streamoff(&fh->vbiq);
865 if (fh->vbiq.reading)
866 videobuf_read_stop(&fh->vbiq);
867 res_free(dev, fh, RESOURCE_VBI);
868 }
869
870 videobuf_mmap_free(&fh->vidq);
871 file->private_data = NULL;
872 kfree(fh);
873
874 /* We are not putting the tuner to sleep here on exit, because
875 * we want to use the mpeg encoder in another session to capture
876 * tuner video. Closing this will result in no video to the encoder.
877 */
878
879 return 0;
880 }
881
882 static int video_mmap(struct file *file, struct vm_area_struct *vma)
883 {
884 struct cx23885_fh *fh = file->private_data;
885
886 return videobuf_mmap_mapper(get_queue(fh), vma);
887 }
888
889 /* ------------------------------------------------------------------ */
890 /* VIDEO CTRL IOCTLS */
891
892 static int cx23885_get_control(struct cx23885_dev *dev,
893 struct v4l2_control *ctl)
894 {
895 dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__);
896 call_all(dev, core, g_ctrl, ctl);
897 return 0;
898 }
899
900 static int cx23885_set_control(struct cx23885_dev *dev,
901 struct v4l2_control *ctl)
902 {
903 dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)"
904 " (disabled - no action)\n", __func__);
905 return 0;
906 }
907
908 static void init_controls(struct cx23885_dev *dev)
909 {
910 struct v4l2_control ctrl;
911 int i;
912
913 for (i = 0; i < CX23885_CTLS; i++) {
914 ctrl.id = cx23885_ctls[i].v.id;
915 ctrl.value = cx23885_ctls[i].v.default_value;
916
917 cx23885_set_control(dev, &ctrl);
918 }
919 }
920
921 /* ------------------------------------------------------------------ */
922 /* VIDEO IOCTLS */
923
924 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
925 struct v4l2_format *f)
926 {
927 struct cx23885_fh *fh = priv;
928
929 f->fmt.pix.width = fh->width;
930 f->fmt.pix.height = fh->height;
931 f->fmt.pix.field = fh->vidq.field;
932 f->fmt.pix.pixelformat = fh->fmt->fourcc;
933 f->fmt.pix.bytesperline =
934 (f->fmt.pix.width * fh->fmt->depth) >> 3;
935 f->fmt.pix.sizeimage =
936 f->fmt.pix.height * f->fmt.pix.bytesperline;
937
938 return 0;
939 }
940
941 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
942 struct v4l2_format *f)
943 {
944 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
945 struct cx23885_fmt *fmt;
946 enum v4l2_field field;
947 unsigned int maxw, maxh;
948
949 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
950 if (NULL == fmt)
951 return -EINVAL;
952
953 field = f->fmt.pix.field;
954 maxw = norm_maxw(dev->tvnorm);
955 maxh = norm_maxh(dev->tvnorm);
956
957 if (V4L2_FIELD_ANY == field) {
958 field = (f->fmt.pix.height > maxh/2)
959 ? V4L2_FIELD_INTERLACED
960 : V4L2_FIELD_BOTTOM;
961 }
962
963 switch (field) {
964 case V4L2_FIELD_TOP:
965 case V4L2_FIELD_BOTTOM:
966 maxh = maxh / 2;
967 break;
968 case V4L2_FIELD_INTERLACED:
969 break;
970 default:
971 return -EINVAL;
972 }
973
974 f->fmt.pix.field = field;
975 v4l_bound_align_image(&f->fmt.pix.width, 48, maxw, 2,
976 &f->fmt.pix.height, 32, maxh, 0, 0);
977 f->fmt.pix.bytesperline =
978 (f->fmt.pix.width * fmt->depth) >> 3;
979 f->fmt.pix.sizeimage =
980 f->fmt.pix.height * f->fmt.pix.bytesperline;
981
982 return 0;
983 }
984
985 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
986 struct v4l2_format *f)
987 {
988 struct cx23885_fh *fh = priv;
989 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
990 int err;
991
992 dprintk(2, "%s()\n", __func__);
993 err = vidioc_try_fmt_vid_cap(file, priv, f);
994
995 if (0 != err)
996 return err;
997 fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
998 fh->width = f->fmt.pix.width;
999 fh->height = f->fmt.pix.height;
1000 fh->vidq.field = f->fmt.pix.field;
1001 dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
1002 fh->width, fh->height, fh->vidq.field);
1003 call_all(dev, video, s_fmt, f);
1004 return 0;
1005 }
1006
1007 static int vidioc_querycap(struct file *file, void *priv,
1008 struct v4l2_capability *cap)
1009 {
1010 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1011
1012 strcpy(cap->driver, "cx23885");
1013 strlcpy(cap->card, cx23885_boards[dev->board].name,
1014 sizeof(cap->card));
1015 sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1016 cap->version = CX23885_VERSION_CODE;
1017 cap->capabilities =
1018 V4L2_CAP_VIDEO_CAPTURE |
1019 V4L2_CAP_READWRITE |
1020 V4L2_CAP_STREAMING |
1021 V4L2_CAP_VBI_CAPTURE;
1022 if (UNSET != dev->tuner_type)
1023 cap->capabilities |= V4L2_CAP_TUNER;
1024 return 0;
1025 }
1026
1027 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1028 struct v4l2_fmtdesc *f)
1029 {
1030 if (unlikely(f->index >= ARRAY_SIZE(formats)))
1031 return -EINVAL;
1032
1033 strlcpy(f->description, formats[f->index].name,
1034 sizeof(f->description));
1035 f->pixelformat = formats[f->index].fourcc;
1036
1037 return 0;
1038 }
1039
1040 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1041 static int vidiocgmbuf(struct file *file, void *priv,
1042 struct video_mbuf *mbuf)
1043 {
1044 struct cx23885_fh *fh = priv;
1045 struct videobuf_queue *q;
1046 struct v4l2_requestbuffers req;
1047 unsigned int i;
1048 int err;
1049
1050 q = get_queue(fh);
1051 memset(&req, 0, sizeof(req));
1052 req.type = q->type;
1053 req.count = 8;
1054 req.memory = V4L2_MEMORY_MMAP;
1055 err = videobuf_reqbufs(q, &req);
1056 if (err < 0)
1057 return err;
1058
1059 mbuf->frames = req.count;
1060 mbuf->size = 0;
1061 for (i = 0; i < mbuf->frames; i++) {
1062 mbuf->offsets[i] = q->bufs[i]->boff;
1063 mbuf->size += q->bufs[i]->bsize;
1064 }
1065 return 0;
1066 }
1067 #endif
1068
1069 static int vidioc_reqbufs(struct file *file, void *priv,
1070 struct v4l2_requestbuffers *p)
1071 {
1072 struct cx23885_fh *fh = priv;
1073 return videobuf_reqbufs(get_queue(fh), p);
1074 }
1075
1076 static int vidioc_querybuf(struct file *file, void *priv,
1077 struct v4l2_buffer *p)
1078 {
1079 struct cx23885_fh *fh = priv;
1080 return videobuf_querybuf(get_queue(fh), p);
1081 }
1082
1083 static int vidioc_qbuf(struct file *file, void *priv,
1084 struct v4l2_buffer *p)
1085 {
1086 struct cx23885_fh *fh = priv;
1087 return videobuf_qbuf(get_queue(fh), p);
1088 }
1089
1090 static int vidioc_dqbuf(struct file *file, void *priv,
1091 struct v4l2_buffer *p)
1092 {
1093 struct cx23885_fh *fh = priv;
1094 return videobuf_dqbuf(get_queue(fh), p,
1095 file->f_flags & O_NONBLOCK);
1096 }
1097
1098 static int vidioc_streamon(struct file *file, void *priv,
1099 enum v4l2_buf_type i)
1100 {
1101 struct cx23885_fh *fh = priv;
1102 struct cx23885_dev *dev = fh->dev;
1103 dprintk(1, "%s()\n", __func__);
1104
1105 if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
1106 return -EINVAL;
1107 if (unlikely(i != fh->type))
1108 return -EINVAL;
1109
1110 if (unlikely(!res_get(dev, fh, get_resource(fh))))
1111 return -EBUSY;
1112 return videobuf_streamon(get_queue(fh));
1113 }
1114
1115 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1116 {
1117 struct cx23885_fh *fh = priv;
1118 struct cx23885_dev *dev = fh->dev;
1119 int err, res;
1120 dprintk(1, "%s()\n", __func__);
1121
1122 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1123 return -EINVAL;
1124 if (i != fh->type)
1125 return -EINVAL;
1126
1127 res = get_resource(fh);
1128 err = videobuf_streamoff(get_queue(fh));
1129 if (err < 0)
1130 return err;
1131 res_free(dev, fh, res);
1132 return 0;
1133 }
1134
1135 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
1136 {
1137 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1138 dprintk(1, "%s()\n", __func__);
1139
1140 mutex_lock(&dev->lock);
1141 cx23885_set_tvnorm(dev, *tvnorms);
1142 mutex_unlock(&dev->lock);
1143
1144 return 0;
1145 }
1146
1147 static int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
1148 {
1149 static const char *iname[] = {
1150 [CX23885_VMUX_COMPOSITE1] = "Composite1",
1151 [CX23885_VMUX_COMPOSITE2] = "Composite2",
1152 [CX23885_VMUX_COMPOSITE3] = "Composite3",
1153 [CX23885_VMUX_COMPOSITE4] = "Composite4",
1154 [CX23885_VMUX_SVIDEO] = "S-Video",
1155 [CX23885_VMUX_COMPONENT] = "Component",
1156 [CX23885_VMUX_TELEVISION] = "Television",
1157 [CX23885_VMUX_CABLE] = "Cable TV",
1158 [CX23885_VMUX_DVB] = "DVB",
1159 [CX23885_VMUX_DEBUG] = "for debug only",
1160 };
1161 unsigned int n;
1162 dprintk(1, "%s()\n", __func__);
1163
1164 n = i->index;
1165 if (n >= 4)
1166 return -EINVAL;
1167
1168 if (0 == INPUT(n)->type)
1169 return -EINVAL;
1170
1171 memset(i, 0, sizeof(*i));
1172 i->index = n;
1173 i->type = V4L2_INPUT_TYPE_CAMERA;
1174 strcpy(i->name, iname[INPUT(n)->type]);
1175 if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
1176 (CX23885_VMUX_CABLE == INPUT(n)->type))
1177 i->type = V4L2_INPUT_TYPE_TUNER;
1178 i->std = CX23885_NORMS;
1179 return 0;
1180 }
1181
1182 static int vidioc_enum_input(struct file *file, void *priv,
1183 struct v4l2_input *i)
1184 {
1185 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1186 dprintk(1, "%s()\n", __func__);
1187 return cx23885_enum_input(dev, i);
1188 }
1189
1190 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1191 {
1192 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1193
1194 *i = dev->input;
1195 dprintk(1, "%s() returns %d\n", __func__, *i);
1196 return 0;
1197 }
1198
1199 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1200 {
1201 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1202
1203 dprintk(1, "%s(%d)\n", __func__, i);
1204
1205 if (i >= 4) {
1206 dprintk(1, "%s() -EINVAL\n", __func__);
1207 return -EINVAL;
1208 }
1209
1210 mutex_lock(&dev->lock);
1211 cx23885_video_mux(dev, i);
1212 mutex_unlock(&dev->lock);
1213 return 0;
1214 }
1215
1216 static int vidioc_queryctrl(struct file *file, void *priv,
1217 struct v4l2_queryctrl *qctrl)
1218 {
1219 qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
1220 if (unlikely(qctrl->id == 0))
1221 return -EINVAL;
1222 return cx23885_ctrl_query(qctrl);
1223 }
1224
1225 static int vidioc_g_ctrl(struct file *file, void *priv,
1226 struct v4l2_control *ctl)
1227 {
1228 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1229
1230 return cx23885_get_control(dev, ctl);
1231 }
1232
1233 static int vidioc_s_ctrl(struct file *file, void *priv,
1234 struct v4l2_control *ctl)
1235 {
1236 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1237
1238 return cx23885_set_control(dev, ctl);
1239 }
1240
1241 static int vidioc_g_tuner(struct file *file, void *priv,
1242 struct v4l2_tuner *t)
1243 {
1244 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1245
1246 if (unlikely(UNSET == dev->tuner_type))
1247 return -EINVAL;
1248 if (0 != t->index)
1249 return -EINVAL;
1250
1251 strcpy(t->name, "Television");
1252 t->type = V4L2_TUNER_ANALOG_TV;
1253 t->capability = V4L2_TUNER_CAP_NORM;
1254 t->rangehigh = 0xffffffffUL;
1255 t->signal = 0xffff ; /* LOCKED */
1256 return 0;
1257 }
1258
1259 static int vidioc_s_tuner(struct file *file, void *priv,
1260 struct v4l2_tuner *t)
1261 {
1262 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1263
1264 if (UNSET == dev->tuner_type)
1265 return -EINVAL;
1266 if (0 != t->index)
1267 return -EINVAL;
1268 return 0;
1269 }
1270
1271 static int vidioc_g_frequency(struct file *file, void *priv,
1272 struct v4l2_frequency *f)
1273 {
1274 struct cx23885_fh *fh = priv;
1275 struct cx23885_dev *dev = fh->dev;
1276
1277 if (unlikely(UNSET == dev->tuner_type))
1278 return -EINVAL;
1279
1280 /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */
1281 f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1282 f->frequency = dev->freq;
1283
1284 call_all(dev, tuner, g_frequency, f);
1285
1286 return 0;
1287 }
1288
1289 static int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f)
1290 {
1291 if (unlikely(UNSET == dev->tuner_type))
1292 return -EINVAL;
1293 if (unlikely(f->tuner != 0))
1294 return -EINVAL;
1295
1296 mutex_lock(&dev->lock);
1297 dev->freq = f->frequency;
1298
1299 call_all(dev, tuner, s_frequency, f);
1300
1301 /* When changing channels it is required to reset TVAUDIO */
1302 msleep(10);
1303
1304 mutex_unlock(&dev->lock);
1305
1306 return 0;
1307 }
1308
1309 static int vidioc_s_frequency(struct file *file, void *priv,
1310 struct v4l2_frequency *f)
1311 {
1312 struct cx23885_fh *fh = priv;
1313 struct cx23885_dev *dev = fh->dev;
1314
1315 if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1316 return -EINVAL;
1317 if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1318 return -EINVAL;
1319
1320 return
1321 cx23885_set_freq(dev, f);
1322 }
1323
1324 /* ----------------------------------------------------------- */
1325
1326 static void cx23885_vid_timeout(unsigned long data)
1327 {
1328 struct cx23885_dev *dev = (struct cx23885_dev *)data;
1329 struct cx23885_dmaqueue *q = &dev->vidq;
1330 struct cx23885_buffer *buf;
1331 unsigned long flags;
1332
1333 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1334
1335 cx_clear(VID_A_DMA_CTL, 0x11);
1336
1337 spin_lock_irqsave(&dev->slock, flags);
1338 while (!list_empty(&q->active)) {
1339 buf = list_entry(q->active.next,
1340 struct cx23885_buffer, vb.queue);
1341 list_del(&buf->vb.queue);
1342 buf->vb.state = VIDEOBUF_ERROR;
1343 wake_up(&buf->vb.done);
1344 printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n",
1345 dev->name, buf, buf->vb.i,
1346 (unsigned long)buf->risc.dma);
1347 }
1348 cx23885_restart_video_queue(dev, q);
1349 spin_unlock_irqrestore(&dev->slock, flags);
1350 }
1351
1352 int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
1353 {
1354 u32 mask, count;
1355 int handled = 0;
1356
1357 mask = cx_read(VID_A_INT_MSK);
1358 if (0 == (status & mask))
1359 return handled;
1360 cx_write(VID_A_INT_STAT, status);
1361
1362 dprintk(2, "%s() status = 0x%08x\n", __func__, status);
1363 /* risc op code error */
1364 if (status & (1 << 16)) {
1365 printk(KERN_WARNING "%s/0: video risc op code error\n",
1366 dev->name);
1367 cx_clear(VID_A_DMA_CTL, 0x11);
1368 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1369 }
1370
1371 /* risc1 y */
1372 if (status & 0x01) {
1373 spin_lock(&dev->slock);
1374 count = cx_read(VID_A_GPCNT);
1375 cx23885_video_wakeup(dev, &dev->vidq, count);
1376 spin_unlock(&dev->slock);
1377 handled++;
1378 }
1379 /* risc2 y */
1380 if (status & 0x10) {
1381 dprintk(2, "stopper video\n");
1382 spin_lock(&dev->slock);
1383 cx23885_restart_video_queue(dev, &dev->vidq);
1384 spin_unlock(&dev->slock);
1385 handled++;
1386 }
1387
1388 return handled;
1389 }
1390
1391 /* ----------------------------------------------------------- */
1392 /* exported stuff */
1393
1394 static const struct v4l2_file_operations video_fops = {
1395 .owner = THIS_MODULE,
1396 .open = video_open,
1397 .release = video_release,
1398 .read = video_read,
1399 .poll = video_poll,
1400 .mmap = video_mmap,
1401 .ioctl = video_ioctl2,
1402 };
1403
1404 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1405 .vidioc_querycap = vidioc_querycap,
1406 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1407 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1408 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1409 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1410 .vidioc_g_fmt_vbi_cap = cx23885_vbi_fmt,
1411 .vidioc_try_fmt_vbi_cap = cx23885_vbi_fmt,
1412 .vidioc_s_fmt_vbi_cap = cx23885_vbi_fmt,
1413 .vidioc_reqbufs = vidioc_reqbufs,
1414 .vidioc_querybuf = vidioc_querybuf,
1415 .vidioc_qbuf = vidioc_qbuf,
1416 .vidioc_dqbuf = vidioc_dqbuf,
1417 .vidioc_s_std = vidioc_s_std,
1418 .vidioc_enum_input = vidioc_enum_input,
1419 .vidioc_g_input = vidioc_g_input,
1420 .vidioc_s_input = vidioc_s_input,
1421 .vidioc_queryctrl = vidioc_queryctrl,
1422 .vidioc_g_ctrl = vidioc_g_ctrl,
1423 .vidioc_s_ctrl = vidioc_s_ctrl,
1424 .vidioc_streamon = vidioc_streamon,
1425 .vidioc_streamoff = vidioc_streamoff,
1426 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1427 .vidiocgmbuf = vidiocgmbuf,
1428 #endif
1429 .vidioc_g_tuner = vidioc_g_tuner,
1430 .vidioc_s_tuner = vidioc_s_tuner,
1431 .vidioc_g_frequency = vidioc_g_frequency,
1432 .vidioc_s_frequency = vidioc_s_frequency,
1433 .vidioc_g_chip_ident = cx23885_g_chip_ident,
1434 #ifdef CONFIG_VIDEO_ADV_DEBUG
1435 .vidioc_g_register = cx23885_g_register,
1436 .vidioc_s_register = cx23885_s_register,
1437 #endif
1438 };
1439
1440 static struct video_device cx23885_vbi_template;
1441 static struct video_device cx23885_video_template = {
1442 .name = "cx23885-video",
1443 .fops = &video_fops,
1444 .minor = -1,
1445 .ioctl_ops = &video_ioctl_ops,
1446 .tvnorms = CX23885_NORMS,
1447 .current_norm = V4L2_STD_NTSC_M,
1448 };
1449
1450 static const struct v4l2_file_operations radio_fops = {
1451 .owner = THIS_MODULE,
1452 .open = video_open,
1453 .release = video_release,
1454 .ioctl = video_ioctl2,
1455 };
1456
1457
1458 void cx23885_video_unregister(struct cx23885_dev *dev)
1459 {
1460 dprintk(1, "%s()\n", __func__);
1461 cx_clear(PCI_INT_MSK, 1);
1462
1463 if (dev->video_dev) {
1464 if (video_is_registered(dev->video_dev))
1465 video_unregister_device(dev->video_dev);
1466 else
1467 video_device_release(dev->video_dev);
1468 dev->video_dev = NULL;
1469
1470 btcx_riscmem_free(dev->pci, &dev->vidq.stopper);
1471 }
1472 }
1473
1474 int cx23885_video_register(struct cx23885_dev *dev)
1475 {
1476 int err;
1477
1478 dprintk(1, "%s()\n", __func__);
1479 spin_lock_init(&dev->slock);
1480
1481 /* Initialize VBI template */
1482 memcpy(&cx23885_vbi_template, &cx23885_video_template,
1483 sizeof(cx23885_vbi_template));
1484 strcpy(cx23885_vbi_template.name, "cx23885-vbi");
1485
1486 dev->tvnorm = cx23885_video_template.current_norm;
1487
1488 /* init video dma queues */
1489 INIT_LIST_HEAD(&dev->vidq.active);
1490 INIT_LIST_HEAD(&dev->vidq.queued);
1491 dev->vidq.timeout.function = cx23885_vid_timeout;
1492 dev->vidq.timeout.data = (unsigned long)dev;
1493 init_timer(&dev->vidq.timeout);
1494 cx23885_risc_stopper(dev->pci, &dev->vidq.stopper,
1495 VID_A_DMA_CTL, 0x11, 0x00);
1496
1497 /* Don't enable VBI yet */
1498 cx_set(PCI_INT_MSK, 1);
1499
1500 if (TUNER_ABSENT != dev->tuner_type) {
1501 struct v4l2_subdev *sd = NULL;
1502
1503 if (dev->tuner_addr)
1504 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1505 &dev->i2c_bus[1].i2c_adap,
1506 "tuner", "tuner", dev->tuner_addr, NULL);
1507 else
1508 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1509 &dev->i2c_bus[1].i2c_adap,
1510 "tuner", "tuner", 0, v4l2_i2c_tuner_addrs(ADDRS_TV));
1511 if (sd) {
1512 struct tuner_setup tun_setup;
1513
1514 memset(&tun_setup, 0, sizeof(tun_setup));
1515 tun_setup.mode_mask = T_ANALOG_TV;
1516 tun_setup.type = dev->tuner_type;
1517 tun_setup.addr = v4l2_i2c_subdev_addr(sd);
1518 tun_setup.tuner_callback = cx23885_tuner_callback;
1519
1520 v4l2_subdev_call(sd, tuner, s_type_addr, &tun_setup);
1521 }
1522 }
1523
1524
1525 /* register v4l devices */
1526 dev->video_dev = cx23885_vdev_init(dev, dev->pci,
1527 &cx23885_video_template, "video");
1528 err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
1529 video_nr[dev->nr]);
1530 if (err < 0) {
1531 printk(KERN_INFO "%s: can't register video device\n",
1532 dev->name);
1533 goto fail_unreg;
1534 }
1535 printk(KERN_INFO "%s/0: registered device %s [v4l2]\n",
1536 dev->name, video_device_node_name(dev->video_dev));
1537 /* initial device configuration */
1538 mutex_lock(&dev->lock);
1539 cx23885_set_tvnorm(dev, dev->tvnorm);
1540 init_controls(dev);
1541 cx23885_video_mux(dev, 0);
1542 mutex_unlock(&dev->lock);
1543
1544 return 0;
1545
1546 fail_unreg:
1547 cx23885_video_unregister(dev);
1548 return err;
1549 }
1550
kernel source for telekom puls (alcatel/mediatek)