5570383fa332fba54f6252ef892eb1ab79c0c50f
[linux-2.6.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 (-1 != dev->video_dev->minor)
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