308caa2085bafbae3fe91588624fc85ae48b6fd6
[linux-3.10.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@hauppauge.com>
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/interrupt.h>
30 #include <linux/delay.h>
31 #include <linux/kthread.h>
32 #include <asm/div64.h>
33
34 #include "cx23885.h"
35 #include <media/v4l2-common.h>
36 #include <media/v4l2-ioctl.h>
37
38 #ifdef CONFIG_VIDEO_V4L1_COMPAT
39 /* Include V4L1 specific functions. Should be removed soon */
40 #include <linux/videodev.h>
41 #endif
42
43 MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
44 MODULE_AUTHOR("Steven Toth <stoth@hauppauge.com>");
45 MODULE_LICENSE("GPL");
46
47 /* ------------------------------------------------------------------ */
48
49 static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
50 static unsigned int vbi_nr[]   = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
51 static unsigned int radio_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
52
53 module_param_array(video_nr, int, NULL, 0444);
54 module_param_array(vbi_nr,   int, NULL, 0444);
55 module_param_array(radio_nr, int, NULL, 0444);
56
57 MODULE_PARM_DESC(video_nr, "video device numbers");
58 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
59 MODULE_PARM_DESC(radio_nr, "radio device numbers");
60
61 static unsigned int video_debug;
62 module_param(video_debug, int, 0644);
63 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
64
65 static unsigned int irq_debug;
66 module_param(irq_debug, int, 0644);
67 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
68
69 static unsigned int vid_limit = 16;
70 module_param(vid_limit, int, 0644);
71 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
72
73 #define dprintk(level, fmt, arg...)\
74         do { if (video_debug >= level)\
75                 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
76         } while (0)
77
78 /* ------------------------------------------------------------------- */
79 /* static data                                                         */
80
81 #define FORMAT_FLAGS_PACKED       0x01
82
83 static struct cx23885_fmt formats[] = {
84         {
85                 .name     = "8 bpp, gray",
86                 .fourcc   = V4L2_PIX_FMT_GREY,
87                 .depth    = 8,
88                 .flags    = FORMAT_FLAGS_PACKED,
89         }, {
90                 .name     = "15 bpp RGB, le",
91                 .fourcc   = V4L2_PIX_FMT_RGB555,
92                 .depth    = 16,
93                 .flags    = FORMAT_FLAGS_PACKED,
94         }, {
95                 .name     = "15 bpp RGB, be",
96                 .fourcc   = V4L2_PIX_FMT_RGB555X,
97                 .depth    = 16,
98                 .flags    = FORMAT_FLAGS_PACKED,
99         }, {
100                 .name     = "16 bpp RGB, le",
101                 .fourcc   = V4L2_PIX_FMT_RGB565,
102                 .depth    = 16,
103                 .flags    = FORMAT_FLAGS_PACKED,
104         }, {
105                 .name     = "16 bpp RGB, be",
106                 .fourcc   = V4L2_PIX_FMT_RGB565X,
107                 .depth    = 16,
108                 .flags    = FORMAT_FLAGS_PACKED,
109         }, {
110                 .name     = "24 bpp RGB, le",
111                 .fourcc   = V4L2_PIX_FMT_BGR24,
112                 .depth    = 24,
113                 .flags    = FORMAT_FLAGS_PACKED,
114         }, {
115                 .name     = "32 bpp RGB, le",
116                 .fourcc   = V4L2_PIX_FMT_BGR32,
117                 .depth    = 32,
118                 .flags    = FORMAT_FLAGS_PACKED,
119         }, {
120                 .name     = "32 bpp RGB, be",
121                 .fourcc   = V4L2_PIX_FMT_RGB32,
122                 .depth    = 32,
123                 .flags    = FORMAT_FLAGS_PACKED,
124         }, {
125                 .name     = "4:2:2, packed, YUYV",
126                 .fourcc   = V4L2_PIX_FMT_YUYV,
127                 .depth    = 16,
128                 .flags    = FORMAT_FLAGS_PACKED,
129         }, {
130                 .name     = "4:2:2, packed, UYVY",
131                 .fourcc   = V4L2_PIX_FMT_UYVY,
132                 .depth    = 16,
133                 .flags    = FORMAT_FLAGS_PACKED,
134         },
135 };
136
137 static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc)
138 {
139         unsigned int i;
140
141         for (i = 0; i < ARRAY_SIZE(formats); i++)
142                 if (formats[i].fourcc == fourcc)
143                         return formats+i;
144
145         printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc);
146         return NULL;
147 }
148
149 /* ------------------------------------------------------------------- */
150
151 static const struct v4l2_queryctrl no_ctl = {
152         .name  = "42",
153         .flags = V4L2_CTRL_FLAG_DISABLED,
154 };
155
156 static struct cx23885_ctrl cx23885_ctls[] = {
157         /* --- video --- */
158         {
159                 .v = {
160                         .id            = V4L2_CID_BRIGHTNESS,
161                         .name          = "Brightness",
162                         .minimum       = 0x00,
163                         .maximum       = 0xff,
164                         .step          = 1,
165                         .default_value = 0x7f,
166                         .type          = V4L2_CTRL_TYPE_INTEGER,
167                 },
168                 .off                   = 128,
169                 .reg                   = LUMA_CTRL,
170                 .mask                  = 0x00ff,
171                 .shift                 = 0,
172         }, {
173                 .v = {
174                         .id            = V4L2_CID_CONTRAST,
175                         .name          = "Contrast",
176                         .minimum       = 0,
177                         .maximum       = 0xff,
178                         .step          = 1,
179                         .default_value = 0x3f,
180                         .type          = V4L2_CTRL_TYPE_INTEGER,
181                 },
182                 .off                   = 0,
183                 .reg                   = LUMA_CTRL,
184                 .mask                  = 0xff00,
185                 .shift                 = 8,
186         }, {
187                 .v = {
188                         .id            = V4L2_CID_HUE,
189                         .name          = "Hue",
190                         .minimum       = 0,
191                         .maximum       = 0xff,
192                         .step          = 1,
193                         .default_value = 0x7f,
194                         .type          = V4L2_CTRL_TYPE_INTEGER,
195                 },
196                 .off                   = 128,
197                 .reg                   = CHROMA_CTRL,
198                 .mask                  = 0xff0000,
199                 .shift                 = 16,
200         }, {
201                 /* strictly, this only describes only U saturation.
202                  * V saturation is handled specially through code.
203                  */
204                 .v = {
205                         .id            = V4L2_CID_SATURATION,
206                         .name          = "Saturation",
207                         .minimum       = 0,
208                         .maximum       = 0xff,
209                         .step          = 1,
210                         .default_value = 0x7f,
211                         .type          = V4L2_CTRL_TYPE_INTEGER,
212                 },
213                 .off                   = 0,
214                 .reg                   = CHROMA_CTRL,
215                 .mask                  = 0x00ff,
216                 .shift                 = 0,
217         }, {
218         /* --- audio --- */
219                 .v = {
220                         .id            = V4L2_CID_AUDIO_MUTE,
221                         .name          = "Mute",
222                         .minimum       = 0,
223                         .maximum       = 1,
224                         .default_value = 1,
225                         .type          = V4L2_CTRL_TYPE_BOOLEAN,
226                 },
227                 .reg                   = PATH1_CTL1,
228                 .mask                  = (0x1f << 24),
229                 .shift                 = 24,
230         }, {
231                 .v = {
232                         .id            = V4L2_CID_AUDIO_VOLUME,
233                         .name          = "Volume",
234                         .minimum       = 0,
235                         .maximum       = 0x3f,
236                         .step          = 1,
237                         .default_value = 0x3f,
238                         .type          = V4L2_CTRL_TYPE_INTEGER,
239                 },
240                 .reg                   = PATH1_VOL_CTL,
241                 .mask                  = 0xff,
242                 .shift                 = 0,
243         }
244 };
245 static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls);
246
247 const u32 cx23885_user_ctrls[] = {
248         V4L2_CID_USER_CLASS,
249         V4L2_CID_BRIGHTNESS,
250         V4L2_CID_CONTRAST,
251         V4L2_CID_SATURATION,
252         V4L2_CID_HUE,
253         V4L2_CID_AUDIO_VOLUME,
254         V4L2_CID_AUDIO_MUTE,
255         0
256 };
257 EXPORT_SYMBOL(cx23885_user_ctrls);
258
259 static const u32 *ctrl_classes[] = {
260         cx23885_user_ctrls,
261         NULL
262 };
263
264 void cx23885_video_wakeup(struct cx23885_dev *dev,
265                  struct cx23885_dmaqueue *q, u32 count)
266 {
267         struct cx23885_buffer *buf;
268         int bc;
269
270         for (bc = 0;; bc++) {
271                 if (list_empty(&q->active))
272                         break;
273                 buf = list_entry(q->active.next,
274                                  struct cx23885_buffer, vb.queue);
275
276                 /* count comes from the hw and is is 16bit wide --
277                  * this trick handles wrap-arounds correctly for
278                  * up to 32767 buffers in flight... */
279                 if ((s16) (count - buf->count) < 0)
280                         break;
281
282                 do_gettimeofday(&buf->vb.ts);
283                 dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i,
284                         count, buf->count);
285                 buf->vb.state = VIDEOBUF_DONE;
286                 list_del(&buf->vb.queue);
287                 wake_up(&buf->vb.done);
288         }
289         if (list_empty(&q->active)) {
290                 del_timer(&q->timeout);
291         } else {
292                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
293         }
294         if (bc != 1)
295                 printk(KERN_ERR "%s: %d buffers handled (should be 1)\n",
296                         __func__, bc);
297 }
298
299 int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
300 {
301         dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
302                 __func__,
303                 (unsigned int)norm,
304                 v4l2_norm_to_name(norm));
305
306         dev->tvnorm = norm;
307
308         /* Tell the analog tuner/demods */
309         cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_STD, &norm);
310
311         /* Tell the internal A/V decoder */
312         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_STD, &norm);
313
314         return 0;
315 }
316
317 struct video_device *cx23885_vdev_init(struct cx23885_dev *dev,
318                                     struct pci_dev *pci,
319                                     struct video_device *template,
320                                     char *type)
321 {
322         struct video_device *vfd;
323         dprintk(1, "%s()\n", __func__);
324
325         vfd = video_device_alloc();
326         if (NULL == vfd)
327                 return NULL;
328         *vfd = *template;
329         vfd->minor   = -1;
330         vfd->parent  = &pci->dev;
331         vfd->release = video_device_release;
332         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
333                  dev->name, type, cx23885_boards[dev->board].name);
334         return vfd;
335 }
336
337 int cx23885_ctrl_query(struct v4l2_queryctrl *qctrl)
338 {
339         int i;
340
341         if (qctrl->id < V4L2_CID_BASE ||
342             qctrl->id >= V4L2_CID_LASTP1)
343                 return -EINVAL;
344         for (i = 0; i < CX23885_CTLS; i++)
345                 if (cx23885_ctls[i].v.id == qctrl->id)
346                         break;
347         if (i == CX23885_CTLS) {
348                 *qctrl = no_ctl;
349                 return 0;
350         }
351         *qctrl = cx23885_ctls[i].v;
352         return 0;
353 }
354 EXPORT_SYMBOL(cx23885_ctrl_query);
355
356 /* ------------------------------------------------------------------- */
357 /* resource management                                                 */
358
359 static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh,
360         unsigned int bit)
361 {
362         dprintk(1, "%s()\n", __func__);
363         if (fh->resources & bit)
364                 /* have it already allocated */
365                 return 1;
366
367         /* is it free? */
368         mutex_lock(&dev->lock);
369         if (dev->resources & bit) {
370                 /* no, someone else uses it */
371                 mutex_unlock(&dev->lock);
372                 return 0;
373         }
374         /* it's free, grab it */
375         fh->resources  |= bit;
376         dev->resources |= bit;
377         dprintk(1, "res: get %d\n", bit);
378         mutex_unlock(&dev->lock);
379         return 1;
380 }
381
382 static int res_check(struct cx23885_fh *fh, unsigned int bit)
383 {
384         return (fh->resources & bit);
385 }
386
387 static int res_locked(struct cx23885_dev *dev, unsigned int bit)
388 {
389         return (dev->resources & bit);
390 }
391
392 static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh,
393         unsigned int bits)
394 {
395         BUG_ON((fh->resources & bits) != bits);
396         dprintk(1, "%s()\n", __func__);
397
398         mutex_lock(&dev->lock);
399         fh->resources  &= ~bits;
400         dev->resources &= ~bits;
401         dprintk(1, "res: put %d\n", bits);
402         mutex_unlock(&dev->lock);
403 }
404
405 int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
406 {
407         struct v4l2_routing route;
408         memset(&route, 0, sizeof(route));
409
410         dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
411                 __func__,
412                 input, INPUT(input)->vmux,
413                 INPUT(input)->gpio0, INPUT(input)->gpio1,
414                 INPUT(input)->gpio2, INPUT(input)->gpio3);
415         dev->input = input;
416
417         route.input = INPUT(input)->vmux;
418
419         /* Tell the internal A/V decoder */
420         cx23885_call_i2c_clients(&dev->i2c_bus[2],
421                 VIDIOC_INT_S_VIDEO_ROUTING, &route);
422
423         return 0;
424 }
425 EXPORT_SYMBOL(cx23885_video_mux);
426
427 /* ------------------------------------------------------------------ */
428 int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width,
429         unsigned int height, enum v4l2_field field)
430 {
431         dprintk(1, "%s()\n", __func__);
432         return 0;
433 }
434
435 static int cx23885_start_video_dma(struct cx23885_dev *dev,
436                            struct cx23885_dmaqueue *q,
437                            struct cx23885_buffer *buf)
438 {
439         dprintk(1, "%s()\n", __func__);
440
441         /* setup fifo + format */
442         cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
443                                 buf->bpl, buf->risc.dma);
444         cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field);
445
446         /* reset counter */
447         cx_write(VID_A_GPCNT_CTL, 3);
448         q->count = 1;
449
450         /* enable irq */
451         cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01);
452         cx_set(VID_A_INT_MSK, 0x000011);
453
454         /* start dma */
455         cx_set(DEV_CNTRL2, (1<<5));
456         cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */
457
458         return 0;
459 }
460
461
462 static int cx23885_restart_video_queue(struct cx23885_dev *dev,
463                                struct cx23885_dmaqueue *q)
464 {
465         struct cx23885_buffer *buf, *prev;
466         struct list_head *item;
467         dprintk(1, "%s()\n", __func__);
468
469         if (!list_empty(&q->active)) {
470                 buf = list_entry(q->active.next, struct cx23885_buffer,
471                         vb.queue);
472                 dprintk(2, "restart_queue [%p/%d]: restart dma\n",
473                         buf, buf->vb.i);
474                 cx23885_start_video_dma(dev, q, buf);
475                 list_for_each(item, &q->active) {
476                         buf = list_entry(item, struct cx23885_buffer,
477                                 vb.queue);
478                         buf->count    = q->count++;
479                 }
480                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
481                 return 0;
482         }
483
484         prev = NULL;
485         for (;;) {
486                 if (list_empty(&q->queued))
487                         return 0;
488                 buf = list_entry(q->queued.next, struct cx23885_buffer,
489                         vb.queue);
490                 if (NULL == prev) {
491                         list_move_tail(&buf->vb.queue, &q->active);
492                         cx23885_start_video_dma(dev, q, buf);
493                         buf->vb.state = VIDEOBUF_ACTIVE;
494                         buf->count    = q->count++;
495                         mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
496                         dprintk(2, "[%p/%d] restart_queue - first active\n",
497                                 buf, buf->vb.i);
498
499                 } else if (prev->vb.width  == buf->vb.width  &&
500                            prev->vb.height == buf->vb.height &&
501                            prev->fmt       == buf->fmt) {
502                         list_move_tail(&buf->vb.queue, &q->active);
503                         buf->vb.state = VIDEOBUF_ACTIVE;
504                         buf->count    = q->count++;
505                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
506                         prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
507                         dprintk(2, "[%p/%d] restart_queue - move to active\n",
508                                 buf, buf->vb.i);
509                 } else {
510                         return 0;
511                 }
512                 prev = buf;
513         }
514 }
515
516 static int buffer_setup(struct videobuf_queue *q, unsigned int *count,
517         unsigned int *size)
518 {
519         struct cx23885_fh *fh = q->priv_data;
520
521         *size = fh->fmt->depth*fh->width*fh->height >> 3;
522         if (0 == *count)
523                 *count = 32;
524         while (*size * *count > vid_limit * 1024 * 1024)
525                 (*count)--;
526         return 0;
527 }
528
529 static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
530                enum v4l2_field field)
531 {
532         struct cx23885_fh *fh  = q->priv_data;
533         struct cx23885_dev *dev = fh->dev;
534         struct cx23885_buffer *buf =
535                 container_of(vb, struct cx23885_buffer, vb);
536         int rc, init_buffer = 0;
537         u32 line0_offset, line1_offset;
538         struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
539
540         BUG_ON(NULL == fh->fmt);
541         if (fh->width  < 48 || fh->width  > norm_maxw(dev->tvnorm) ||
542             fh->height < 32 || fh->height > norm_maxh(dev->tvnorm))
543                 return -EINVAL;
544         buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
545         if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
546                 return -EINVAL;
547
548         if (buf->fmt       != fh->fmt    ||
549             buf->vb.width  != fh->width  ||
550             buf->vb.height != fh->height ||
551             buf->vb.field  != field) {
552                 buf->fmt       = fh->fmt;
553                 buf->vb.width  = fh->width;
554                 buf->vb.height = fh->height;
555                 buf->vb.field  = field;
556                 init_buffer = 1;
557         }
558
559         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
560                 init_buffer = 1;
561                 rc = videobuf_iolock(q, &buf->vb, NULL);
562                 if (0 != rc)
563                         goto fail;
564         }
565
566         if (init_buffer) {
567                 buf->bpl = buf->vb.width * buf->fmt->depth >> 3;
568                 switch (buf->vb.field) {
569                 case V4L2_FIELD_TOP:
570                         cx23885_risc_buffer(dev->pci, &buf->risc,
571                                          dma->sglist, 0, UNSET,
572                                          buf->bpl, 0, buf->vb.height);
573                         break;
574                 case V4L2_FIELD_BOTTOM:
575                         cx23885_risc_buffer(dev->pci, &buf->risc,
576                                          dma->sglist, UNSET, 0,
577                                          buf->bpl, 0, buf->vb.height);
578                         break;
579                 case V4L2_FIELD_INTERLACED:
580                         if (dev->tvnorm & V4L2_STD_NTSC) {
581                                 /* cx25840 transmits NTSC bottom field first */
582                                 dprintk(1, "%s() Creating NTSC risc\n",
583                                         __func__);
584                                 line0_offset = buf->bpl;
585                                 line1_offset = 0;
586                         } else {
587                                 /* All other formats are top field first */
588                                 dprintk(1, "%s() Creating PAL/SECAM risc\n",
589                                         __func__);
590                                 line0_offset = 0;
591                                 line1_offset = buf->bpl;
592                         }
593                         cx23885_risc_buffer(dev->pci, &buf->risc,
594                                         dma->sglist, line0_offset,
595                                         line1_offset,
596                                         buf->bpl, buf->bpl,
597                                         buf->vb.height >> 1);
598                         break;
599                 case V4L2_FIELD_SEQ_TB:
600                         cx23885_risc_buffer(dev->pci, &buf->risc,
601                                          dma->sglist,
602                                          0, buf->bpl * (buf->vb.height >> 1),
603                                          buf->bpl, 0,
604                                          buf->vb.height >> 1);
605                         break;
606                 case V4L2_FIELD_SEQ_BT:
607                         cx23885_risc_buffer(dev->pci, &buf->risc,
608                                          dma->sglist,
609                                          buf->bpl * (buf->vb.height >> 1), 0,
610                                          buf->bpl, 0,
611                                          buf->vb.height >> 1);
612                         break;
613                 default:
614                         BUG();
615                 }
616         }
617         dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
618                 buf, buf->vb.i,
619                 fh->width, fh->height, fh->fmt->depth, fh->fmt->name,
620                 (unsigned long)buf->risc.dma);
621
622         buf->vb.state = VIDEOBUF_PREPARED;
623         return 0;
624
625  fail:
626         cx23885_free_buffer(q, buf);
627         return rc;
628 }
629
630 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
631 {
632         struct cx23885_buffer   *buf = container_of(vb,
633                 struct cx23885_buffer, vb);
634         struct cx23885_buffer   *prev;
635         struct cx23885_fh       *fh   = vq->priv_data;
636         struct cx23885_dev      *dev  = fh->dev;
637         struct cx23885_dmaqueue *q    = &dev->vidq;
638
639         /* add jump to stopper */
640         buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
641         buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
642         buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
643
644         if (!list_empty(&q->queued)) {
645                 list_add_tail(&buf->vb.queue, &q->queued);
646                 buf->vb.state = VIDEOBUF_QUEUED;
647                 dprintk(2, "[%p/%d] buffer_queue - append to queued\n",
648                         buf, buf->vb.i);
649
650         } else if (list_empty(&q->active)) {
651                 list_add_tail(&buf->vb.queue, &q->active);
652                 cx23885_start_video_dma(dev, q, buf);
653                 buf->vb.state = VIDEOBUF_ACTIVE;
654                 buf->count    = q->count++;
655                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
656                 dprintk(2, "[%p/%d] buffer_queue - first active\n",
657                         buf, buf->vb.i);
658
659         } else {
660                 prev = list_entry(q->active.prev, struct cx23885_buffer,
661                         vb.queue);
662                 if (prev->vb.width  == buf->vb.width  &&
663                     prev->vb.height == buf->vb.height &&
664                     prev->fmt       == buf->fmt) {
665                         list_add_tail(&buf->vb.queue, &q->active);
666                         buf->vb.state = VIDEOBUF_ACTIVE;
667                         buf->count    = q->count++;
668                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
669                         /* 64 bit bits 63-32 */
670                         prev->risc.jmp[2] = cpu_to_le32(0);
671                         dprintk(2, "[%p/%d] buffer_queue - append to active\n",
672                                 buf, buf->vb.i);
673
674                 } else {
675                         list_add_tail(&buf->vb.queue, &q->queued);
676                         buf->vb.state = VIDEOBUF_QUEUED;
677                         dprintk(2, "[%p/%d] buffer_queue - first queued\n",
678                                 buf, buf->vb.i);
679                 }
680         }
681 }
682
683 static void buffer_release(struct videobuf_queue *q,
684         struct videobuf_buffer *vb)
685 {
686         struct cx23885_buffer *buf = container_of(vb,
687                 struct cx23885_buffer, vb);
688
689         cx23885_free_buffer(q, buf);
690 }
691
692 static struct videobuf_queue_ops cx23885_video_qops = {
693         .buf_setup    = buffer_setup,
694         .buf_prepare  = buffer_prepare,
695         .buf_queue    = buffer_queue,
696         .buf_release  = buffer_release,
697 };
698
699 static struct videobuf_queue *get_queue(struct cx23885_fh *fh)
700 {
701         switch (fh->type) {
702         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
703                 return &fh->vidq;
704         case V4L2_BUF_TYPE_VBI_CAPTURE:
705                 return &fh->vbiq;
706         default:
707                 BUG();
708                 return NULL;
709         }
710 }
711
712 static int get_resource(struct cx23885_fh *fh)
713 {
714         switch (fh->type) {
715         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
716                 return RESOURCE_VIDEO;
717         case V4L2_BUF_TYPE_VBI_CAPTURE:
718                 return RESOURCE_VBI;
719         default:
720                 BUG();
721                 return 0;
722         }
723 }
724
725 static int video_open(struct inode *inode, struct file *file)
726 {
727         int minor = iminor(inode);
728         struct cx23885_dev *h, *dev = NULL;
729         struct cx23885_fh *fh;
730         struct list_head *list;
731         enum v4l2_buf_type type = 0;
732         int radio = 0;
733
734         list_for_each(list, &cx23885_devlist) {
735                 h = list_entry(list, struct cx23885_dev, devlist);
736                 if (h->video_dev->minor == minor) {
737                         dev  = h;
738                         type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
739                 }
740                 if (h->vbi_dev &&
741                    h->vbi_dev->minor == minor) {
742                         dev  = h;
743                         type = V4L2_BUF_TYPE_VBI_CAPTURE;
744                 }
745                 if (h->radio_dev &&
746                     h->radio_dev->minor == minor) {
747                         radio = 1;
748                         dev   = h;
749                 }
750         }
751         if (NULL == dev)
752                 return -ENODEV;
753
754         dprintk(1, "open minor=%d radio=%d type=%s\n",
755                 minor, radio, v4l2_type_names[type]);
756
757         /* allocate + initialize per filehandle data */
758         fh = kzalloc(sizeof(*fh), GFP_KERNEL);
759         if (NULL == fh)
760                 return -ENOMEM;
761         file->private_data = fh;
762         fh->dev      = dev;
763         fh->radio    = radio;
764         fh->type     = type;
765         fh->width    = 320;
766         fh->height   = 240;
767         fh->fmt      = format_by_fourcc(V4L2_PIX_FMT_BGR24);
768
769         videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops,
770                             &dev->pci->dev, &dev->slock,
771                             V4L2_BUF_TYPE_VIDEO_CAPTURE,
772                             V4L2_FIELD_INTERLACED,
773                             sizeof(struct cx23885_buffer),
774                             fh);
775
776         dprintk(1, "post videobuf_queue_init()\n");
777
778
779         return 0;
780 }
781
782 static ssize_t video_read(struct file *file, char __user *data,
783         size_t count, loff_t *ppos)
784 {
785         struct cx23885_fh *fh = file->private_data;
786
787         switch (fh->type) {
788         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
789                 if (res_locked(fh->dev, RESOURCE_VIDEO))
790                         return -EBUSY;
791                 return videobuf_read_one(&fh->vidq, data, count, ppos,
792                                          file->f_flags & O_NONBLOCK);
793         case V4L2_BUF_TYPE_VBI_CAPTURE:
794                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
795                         return -EBUSY;
796                 return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1,
797                                             file->f_flags & O_NONBLOCK);
798         default:
799                 BUG();
800                 return 0;
801         }
802 }
803
804 static unsigned int video_poll(struct file *file,
805         struct poll_table_struct *wait)
806 {
807         struct cx23885_fh *fh = file->private_data;
808         struct cx23885_buffer *buf;
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         if (res_check(fh, RESOURCE_VIDEO)) {
817                 /* streaming capture */
818                 if (list_empty(&fh->vidq.stream))
819                         return POLLERR;
820                 buf = list_entry(fh->vidq.stream.next,
821                         struct cx23885_buffer, vb.stream);
822         } else {
823                 /* read() capture */
824                 buf = (struct cx23885_buffer *)fh->vidq.read_buf;
825                 if (NULL == buf)
826                         return POLLERR;
827         }
828         poll_wait(file, &buf->vb.done, wait);
829         if (buf->vb.state == VIDEOBUF_DONE ||
830             buf->vb.state == VIDEOBUF_ERROR)
831                 return POLLIN|POLLRDNORM;
832         return 0;
833 }
834
835 static int video_release(struct inode *inode, struct file *file)
836 {
837         struct cx23885_fh *fh = file->private_data;
838         struct cx23885_dev *dev = fh->dev;
839
840         /* turn off overlay */
841         if (res_check(fh, RESOURCE_OVERLAY)) {
842                 /* FIXME */
843                 res_free(dev, fh, RESOURCE_OVERLAY);
844         }
845
846         /* stop video capture */
847         if (res_check(fh, RESOURCE_VIDEO)) {
848                 videobuf_queue_cancel(&fh->vidq);
849                 res_free(dev, fh, RESOURCE_VIDEO);
850         }
851         if (fh->vidq.read_buf) {
852                 buffer_release(&fh->vidq, fh->vidq.read_buf);
853                 kfree(fh->vidq.read_buf);
854         }
855
856         /* stop vbi capture */
857         if (res_check(fh, RESOURCE_VBI)) {
858                 if (fh->vbiq.streaming)
859                         videobuf_streamoff(&fh->vbiq);
860                 if (fh->vbiq.reading)
861                         videobuf_read_stop(&fh->vbiq);
862                 res_free(dev, fh, RESOURCE_VBI);
863         }
864
865         videobuf_mmap_free(&fh->vidq);
866         file->private_data = NULL;
867         kfree(fh);
868
869         /* We are not putting the tuner to sleep here on exit, because
870          * we want to use the mpeg encoder in another session to capture
871          * tuner video. Closing this will result in no video to the encoder.
872          */
873
874         return 0;
875 }
876
877 static int video_mmap(struct file *file, struct vm_area_struct *vma)
878 {
879         struct cx23885_fh *fh = file->private_data;
880
881         return videobuf_mmap_mapper(get_queue(fh), vma);
882 }
883
884 /* ------------------------------------------------------------------ */
885 /* VIDEO CTRL IOCTLS                                                  */
886
887 int cx23885_get_control(struct cx23885_dev *dev, struct v4l2_control *ctl)
888 {
889         dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__);
890         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_G_CTRL, ctl);
891         return 0;
892 }
893 EXPORT_SYMBOL(cx23885_get_control);
894
895 int cx23885_set_control(struct cx23885_dev *dev, struct v4l2_control *ctl)
896 {
897         dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)"
898                 " (disabled - no action)\n", __func__);
899         return 0;
900 }
901 EXPORT_SYMBOL(cx23885_set_control);
902
903 static void init_controls(struct cx23885_dev *dev)
904 {
905         struct v4l2_control ctrl;
906         int i;
907
908         for (i = 0; i < CX23885_CTLS; i++) {
909                 ctrl.id = cx23885_ctls[i].v.id;
910                 ctrl.value = cx23885_ctls[i].v.default_value;
911
912                 cx23885_set_control(dev, &ctrl);
913         }
914 }
915
916 /* ------------------------------------------------------------------ */
917 /* VIDEO IOCTLS                                                       */
918
919 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
920         struct v4l2_format *f)
921 {
922         struct cx23885_fh *fh   = priv;
923
924         f->fmt.pix.width        = fh->width;
925         f->fmt.pix.height       = fh->height;
926         f->fmt.pix.field        = fh->vidq.field;
927         f->fmt.pix.pixelformat  = fh->fmt->fourcc;
928         f->fmt.pix.bytesperline =
929                 (f->fmt.pix.width * fh->fmt->depth) >> 3;
930         f->fmt.pix.sizeimage =
931                 f->fmt.pix.height * f->fmt.pix.bytesperline;
932
933         return 0;
934 }
935
936 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
937         struct v4l2_format *f)
938 {
939         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
940         struct cx23885_fmt *fmt;
941         enum v4l2_field   field;
942         unsigned int      maxw, maxh;
943
944         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
945         if (NULL == fmt)
946                 return -EINVAL;
947
948         field = f->fmt.pix.field;
949         maxw  = norm_maxw(dev->tvnorm);
950         maxh  = norm_maxh(dev->tvnorm);
951
952         if (V4L2_FIELD_ANY == field) {
953                 field = (f->fmt.pix.height > maxh/2)
954                         ? V4L2_FIELD_INTERLACED
955                         : V4L2_FIELD_BOTTOM;
956         }
957
958         switch (field) {
959         case V4L2_FIELD_TOP:
960         case V4L2_FIELD_BOTTOM:
961                 maxh = maxh / 2;
962                 break;
963         case V4L2_FIELD_INTERLACED:
964                 break;
965         default:
966                 return -EINVAL;
967         }
968
969         f->fmt.pix.field = field;
970         if (f->fmt.pix.height < 32)
971                 f->fmt.pix.height = 32;
972         if (f->fmt.pix.height > maxh)
973                 f->fmt.pix.height = maxh;
974         if (f->fmt.pix.width < 48)
975                 f->fmt.pix.width = 48;
976         if (f->fmt.pix.width > maxw)
977                 f->fmt.pix.width = maxw;
978         f->fmt.pix.width &= ~0x03;
979         f->fmt.pix.bytesperline =
980                 (f->fmt.pix.width * fmt->depth) >> 3;
981         f->fmt.pix.sizeimage =
982                 f->fmt.pix.height * f->fmt.pix.bytesperline;
983
984         return 0;
985 }
986
987 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
988         struct v4l2_format *f)
989 {
990         struct cx23885_fh *fh = priv;
991         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
992         int err;
993
994         dprintk(2, "%s()\n", __func__);
995         err = vidioc_try_fmt_vid_cap(file, priv, f);
996
997         if (0 != err)
998                 return err;
999         fh->fmt        = format_by_fourcc(f->fmt.pix.pixelformat);
1000         fh->width      = f->fmt.pix.width;
1001         fh->height     = f->fmt.pix.height;
1002         fh->vidq.field = f->fmt.pix.field;
1003         dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
1004                 fh->width, fh->height, fh->vidq.field);
1005         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_FMT, f);
1006         return 0;
1007 }
1008
1009 static int vidioc_querycap(struct file *file, void  *priv,
1010         struct v4l2_capability *cap)
1011 {
1012         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
1013
1014         strcpy(cap->driver, "cx23885");
1015         strlcpy(cap->card, cx23885_boards[dev->board].name,
1016                 sizeof(cap->card));
1017         sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1018         cap->version = CX23885_VERSION_CODE;
1019         cap->capabilities =
1020                 V4L2_CAP_VIDEO_CAPTURE |
1021                 V4L2_CAP_READWRITE     |
1022                 V4L2_CAP_STREAMING     |
1023                 V4L2_CAP_VBI_CAPTURE;
1024         if (UNSET != dev->tuner_type)
1025                 cap->capabilities |= V4L2_CAP_TUNER;
1026         return 0;
1027 }
1028
1029 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1030         struct v4l2_fmtdesc *f)
1031 {
1032         if (unlikely(f->index >= ARRAY_SIZE(formats)))
1033                 return -EINVAL;
1034
1035         strlcpy(f->description, formats[f->index].name,
1036                 sizeof(f->description));
1037         f->pixelformat = formats[f->index].fourcc;
1038
1039         return 0;
1040 }
1041
1042 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1043 static int vidiocgmbuf(struct file *file, void *priv,
1044         struct video_mbuf *mbuf)
1045 {
1046         struct cx23885_fh *fh = priv;
1047         struct videobuf_queue *q;
1048         struct v4l2_requestbuffers req;
1049         unsigned int i;
1050         int err;
1051
1052         q = get_queue(fh);
1053         memset(&req, 0, sizeof(req));
1054         req.type   = q->type;
1055         req.count  = 8;
1056         req.memory = V4L2_MEMORY_MMAP;
1057         err = videobuf_reqbufs(q, &req);
1058         if (err < 0)
1059                 return err;
1060
1061         mbuf->frames = req.count;
1062         mbuf->size   = 0;
1063         for (i = 0; i < mbuf->frames; i++) {
1064                 mbuf->offsets[i]  = q->bufs[i]->boff;
1065                 mbuf->size       += q->bufs[i]->bsize;
1066         }
1067         return 0;
1068 }
1069 #endif
1070
1071 static int vidioc_reqbufs(struct file *file, void *priv,
1072         struct v4l2_requestbuffers *p)
1073 {
1074         struct cx23885_fh *fh = priv;
1075         return (videobuf_reqbufs(get_queue(fh), p));
1076 }
1077
1078 static int vidioc_querybuf(struct file *file, void *priv,
1079         struct v4l2_buffer *p)
1080 {
1081         struct cx23885_fh *fh = priv;
1082         return (videobuf_querybuf(get_queue(fh), p));
1083 }
1084
1085 static int vidioc_qbuf(struct file *file, void *priv,
1086         struct v4l2_buffer *p)
1087 {
1088         struct cx23885_fh *fh = priv;
1089         return (videobuf_qbuf(get_queue(fh), p));
1090 }
1091
1092 static int vidioc_dqbuf(struct file *file, void *priv,
1093         struct v4l2_buffer *p)
1094 {
1095         struct cx23885_fh *fh = priv;
1096         return (videobuf_dqbuf(get_queue(fh), p,
1097                                 file->f_flags & O_NONBLOCK));
1098 }
1099
1100 static int vidioc_streamon(struct file *file, void *priv,
1101         enum v4l2_buf_type i)
1102 {
1103         struct cx23885_fh *fh = priv;
1104         struct cx23885_dev *dev = fh->dev;
1105         dprintk(1, "%s()\n", __func__);
1106
1107         if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
1108                 return -EINVAL;
1109         if (unlikely(i != fh->type))
1110                 return -EINVAL;
1111
1112         if (unlikely(!res_get(dev, fh, get_resource(fh))))
1113                 return -EBUSY;
1114         return videobuf_streamon(get_queue(fh));
1115 }
1116
1117 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1118 {
1119         struct cx23885_fh *fh = priv;
1120         struct cx23885_dev *dev = fh->dev;
1121         int err, res;
1122         dprintk(1, "%s()\n", __func__);
1123
1124         if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1125                 return -EINVAL;
1126         if (i != fh->type)
1127                 return -EINVAL;
1128
1129         res = get_resource(fh);
1130         err = videobuf_streamoff(get_queue(fh));
1131         if (err < 0)
1132                 return err;
1133         res_free(dev, fh, res);
1134         return 0;
1135 }
1136
1137 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
1138 {
1139         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1140         dprintk(1, "%s()\n", __func__);
1141
1142         mutex_lock(&dev->lock);
1143         cx23885_set_tvnorm(dev, *tvnorms);
1144         mutex_unlock(&dev->lock);
1145
1146         return 0;
1147 }
1148
1149 int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
1150 {
1151         static const char *iname[] = {
1152                 [CX23885_VMUX_COMPOSITE1] = "Composite1",
1153                 [CX23885_VMUX_COMPOSITE2] = "Composite2",
1154                 [CX23885_VMUX_COMPOSITE3] = "Composite3",
1155                 [CX23885_VMUX_COMPOSITE4] = "Composite4",
1156                 [CX23885_VMUX_SVIDEO]     = "S-Video",
1157                 [CX23885_VMUX_TELEVISION] = "Television",
1158                 [CX23885_VMUX_CABLE]      = "Cable TV",
1159                 [CX23885_VMUX_DVB]        = "DVB",
1160                 [CX23885_VMUX_DEBUG]      = "for debug only",
1161         };
1162         unsigned int n;
1163         dprintk(1, "%s()\n", __func__);
1164
1165         n = i->index;
1166         if (n >= 4)
1167                 return -EINVAL;
1168
1169         if (0 == INPUT(n)->type)
1170                 return -EINVAL;
1171
1172         memset(i, 0, sizeof(*i));
1173         i->index = n;
1174         i->type  = V4L2_INPUT_TYPE_CAMERA;
1175         strcpy(i->name, iname[INPUT(n)->type]);
1176         if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
1177                 (CX23885_VMUX_CABLE == INPUT(n)->type))
1178                 i->type = V4L2_INPUT_TYPE_TUNER;
1179                 i->std = CX23885_NORMS;
1180         return 0;
1181 }
1182 EXPORT_SYMBOL(cx23885_enum_input);
1183
1184 static int vidioc_enum_input(struct file *file, void *priv,
1185                                 struct v4l2_input *i)
1186 {
1187         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1188         dprintk(1, "%s()\n", __func__);
1189         return cx23885_enum_input(dev, i);
1190 }
1191
1192 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1193 {
1194         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1195
1196         *i = dev->input;
1197         dprintk(1, "%s() returns %d\n", __func__, *i);
1198         return 0;
1199 }
1200
1201 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1202 {
1203         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1204
1205         dprintk(1, "%s(%d)\n", __func__, i);
1206
1207         if (i >= 4) {
1208                 dprintk(1, "%s() -EINVAL\n", __func__);
1209                 return -EINVAL;
1210         }
1211
1212         mutex_lock(&dev->lock);
1213         cx23885_video_mux(dev, i);
1214         mutex_unlock(&dev->lock);
1215         return 0;
1216 }
1217
1218 static int vidioc_queryctrl(struct file *file, void *priv,
1219                                 struct v4l2_queryctrl *qctrl)
1220 {
1221         qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
1222         if (unlikely(qctrl->id == 0))
1223                 return -EINVAL;
1224         return cx23885_ctrl_query(qctrl);
1225 }
1226
1227 static int vidioc_g_ctrl(struct file *file, void *priv,
1228                                 struct v4l2_control *ctl)
1229 {
1230         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1231
1232         return cx23885_get_control(dev, ctl);
1233 }
1234
1235 static int vidioc_s_ctrl(struct file *file, void *priv,
1236                                 struct v4l2_control *ctl)
1237 {
1238         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1239
1240         return cx23885_set_control(dev, ctl);
1241 }
1242
1243 static int vidioc_g_tuner(struct file *file, void *priv,
1244                                 struct v4l2_tuner *t)
1245 {
1246         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1247
1248         if (unlikely(UNSET == dev->tuner_type))
1249                 return -EINVAL;
1250         if (0 != t->index)
1251                 return -EINVAL;
1252
1253         strcpy(t->name, "Television");
1254         t->type       = V4L2_TUNER_ANALOG_TV;
1255         t->capability = V4L2_TUNER_CAP_NORM;
1256         t->rangehigh  = 0xffffffffUL;
1257         t->signal = 0xffff ; /* LOCKED */
1258         return 0;
1259 }
1260
1261 static int vidioc_s_tuner(struct file *file, void *priv,
1262                                 struct v4l2_tuner *t)
1263 {
1264         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1265
1266         if (UNSET == dev->tuner_type)
1267                 return -EINVAL;
1268         if (0 != t->index)
1269                 return -EINVAL;
1270         return 0;
1271 }
1272
1273 static int vidioc_g_frequency(struct file *file, void *priv,
1274                                 struct v4l2_frequency *f)
1275 {
1276         struct cx23885_fh *fh = priv;
1277         struct cx23885_dev *dev = fh->dev;
1278
1279         if (unlikely(UNSET == dev->tuner_type))
1280                 return -EINVAL;
1281
1282         /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */
1283         f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1284         f->frequency = dev->freq;
1285
1286         cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_G_FREQUENCY, f);
1287
1288         return 0;
1289 }
1290
1291 int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f)
1292 {
1293         if (unlikely(UNSET == dev->tuner_type))
1294                 return -EINVAL;
1295         if (unlikely(f->tuner != 0))
1296                 return -EINVAL;
1297
1298         mutex_lock(&dev->lock);
1299         dev->freq = f->frequency;
1300
1301         cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_FREQUENCY, f);
1302
1303         /* When changing channels it is required to reset TVAUDIO */
1304         msleep(10);
1305
1306         mutex_unlock(&dev->lock);
1307
1308         return 0;
1309 }
1310 EXPORT_SYMBOL(cx23885_set_freq);
1311
1312 static int vidioc_s_frequency(struct file *file, void *priv,
1313                                 struct v4l2_frequency *f)
1314 {
1315         struct cx23885_fh *fh = priv;
1316         struct cx23885_dev *dev = fh->dev;
1317
1318         if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1319                 return -EINVAL;
1320         if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1321                 return -EINVAL;
1322
1323         return
1324                 cx23885_set_freq(dev, f);
1325 }
1326
1327 #ifdef CONFIG_VIDEO_ADV_DEBUG
1328 static int vidioc_g_register(struct file *file, void *fh,
1329                                 struct v4l2_register *reg)
1330 {
1331         struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
1332
1333         if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
1334                 return -EINVAL;
1335
1336         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_G_REGISTER, reg);
1337
1338         return 0;
1339 }
1340
1341 static int vidioc_s_register(struct file *file, void *fh,
1342                                 struct v4l2_register *reg)
1343 {
1344         struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
1345
1346         if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
1347                 return -EINVAL;
1348
1349         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_S_REGISTER, reg);
1350
1351         return 0;
1352 }
1353 #endif
1354
1355 /* ----------------------------------------------------------- */
1356
1357 static void cx23885_vid_timeout(unsigned long data)
1358 {
1359         struct cx23885_dev *dev = (struct cx23885_dev *)data;
1360         struct cx23885_dmaqueue *q = &dev->vidq;
1361         struct cx23885_buffer *buf;
1362         unsigned long flags;
1363
1364         cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1365
1366         cx_clear(VID_A_DMA_CTL, 0x11);
1367
1368         spin_lock_irqsave(&dev->slock, flags);
1369         while (!list_empty(&q->active)) {
1370                 buf = list_entry(q->active.next,
1371                         struct cx23885_buffer, vb.queue);
1372                 list_del(&buf->vb.queue);
1373                 buf->vb.state = VIDEOBUF_ERROR;
1374                 wake_up(&buf->vb.done);
1375                 printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n",
1376                         dev->name, buf, buf->vb.i,
1377                         (unsigned long)buf->risc.dma);
1378         }
1379         cx23885_restart_video_queue(dev, q);
1380         spin_unlock_irqrestore(&dev->slock, flags);
1381 }
1382
1383 int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
1384 {
1385         u32 mask, count;
1386         int handled = 0;
1387
1388         mask   = cx_read(VID_A_INT_MSK);
1389         if (0 == (status & mask))
1390                 return handled;
1391         cx_write(VID_A_INT_STAT, status);
1392
1393         dprintk(2, "%s() status = 0x%08x\n", __func__, status);
1394         /* risc op code error */
1395         if (status & (1 << 16)) {
1396                 printk(KERN_WARNING "%s/0: video risc op code error\n",
1397                         dev->name);
1398                 cx_clear(VID_A_DMA_CTL, 0x11);
1399                 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1400         }
1401
1402         /* risc1 y */
1403         if (status & 0x01) {
1404                 spin_lock(&dev->slock);
1405                 count = cx_read(VID_A_GPCNT);
1406                 cx23885_video_wakeup(dev, &dev->vidq, count);
1407                 spin_unlock(&dev->slock);
1408                 handled++;
1409         }
1410         /* risc2 y */
1411         if (status & 0x10) {
1412                 dprintk(2, "stopper video\n");
1413                 spin_lock(&dev->slock);
1414                 cx23885_restart_video_queue(dev, &dev->vidq);
1415                 spin_unlock(&dev->slock);
1416                 handled++;
1417         }
1418
1419         return handled;
1420 }
1421
1422 /* ----------------------------------------------------------- */
1423 /* exported stuff                                              */
1424
1425 static const struct file_operations video_fops = {
1426         .owner         = THIS_MODULE,
1427         .open          = video_open,
1428         .release       = video_release,
1429         .read          = video_read,
1430         .poll          = video_poll,
1431         .mmap          = video_mmap,
1432         .ioctl         = video_ioctl2,
1433         .compat_ioctl  = v4l_compat_ioctl32,
1434         .llseek        = no_llseek,
1435 };
1436
1437 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1438         .vidioc_querycap      = vidioc_querycap,
1439         .vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1440         .vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1441         .vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1442         .vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1443         .vidioc_g_fmt_vbi_cap     = cx23885_vbi_fmt,
1444         .vidioc_try_fmt_vbi_cap   = cx23885_vbi_fmt,
1445         .vidioc_s_fmt_vbi_cap     = cx23885_vbi_fmt,
1446         .vidioc_reqbufs       = vidioc_reqbufs,
1447         .vidioc_querybuf      = vidioc_querybuf,
1448         .vidioc_qbuf          = vidioc_qbuf,
1449         .vidioc_dqbuf         = vidioc_dqbuf,
1450         .vidioc_s_std         = vidioc_s_std,
1451         .vidioc_enum_input    = vidioc_enum_input,
1452         .vidioc_g_input       = vidioc_g_input,
1453         .vidioc_s_input       = vidioc_s_input,
1454         .vidioc_queryctrl     = vidioc_queryctrl,
1455         .vidioc_g_ctrl        = vidioc_g_ctrl,
1456         .vidioc_s_ctrl        = vidioc_s_ctrl,
1457         .vidioc_streamon      = vidioc_streamon,
1458         .vidioc_streamoff     = vidioc_streamoff,
1459 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1460         .vidiocgmbuf          = vidiocgmbuf,
1461 #endif
1462         .vidioc_g_tuner       = vidioc_g_tuner,
1463         .vidioc_s_tuner       = vidioc_s_tuner,
1464         .vidioc_g_frequency   = vidioc_g_frequency,
1465         .vidioc_s_frequency   = vidioc_s_frequency,
1466 #ifdef CONFIG_VIDEO_ADV_DEBUG
1467         .vidioc_g_register    = vidioc_g_register,
1468         .vidioc_s_register    = vidioc_s_register,
1469 #endif
1470 };
1471
1472 static struct video_device cx23885_vbi_template;
1473 static struct video_device cx23885_video_template = {
1474         .name                 = "cx23885-video",
1475         .type                 = VID_TYPE_CAPTURE|VID_TYPE_TUNER|VID_TYPE_SCALES,
1476         .fops                 = &video_fops,
1477         .minor                = -1,
1478         .ioctl_ops            = &video_ioctl_ops,
1479         .tvnorms              = CX23885_NORMS,
1480         .current_norm         = V4L2_STD_NTSC_M,
1481 };
1482
1483 static const struct file_operations radio_fops = {
1484         .owner         = THIS_MODULE,
1485         .open          = video_open,
1486         .release       = video_release,
1487         .ioctl         = video_ioctl2,
1488         .compat_ioctl  = v4l_compat_ioctl32,
1489         .llseek        = no_llseek,
1490 };
1491
1492
1493 void cx23885_video_unregister(struct cx23885_dev *dev)
1494 {
1495         dprintk(1, "%s()\n", __func__);
1496         cx_clear(PCI_INT_MSK, 1);
1497
1498         if (dev->video_dev) {
1499                 if (-1 != dev->video_dev->minor)
1500                         video_unregister_device(dev->video_dev);
1501                 else
1502                         video_device_release(dev->video_dev);
1503                 dev->video_dev = NULL;
1504
1505                 btcx_riscmem_free(dev->pci, &dev->vidq.stopper);
1506         }
1507 }
1508
1509 int cx23885_video_register(struct cx23885_dev *dev)
1510 {
1511         int err;
1512
1513         dprintk(1, "%s()\n", __func__);
1514         spin_lock_init(&dev->slock);
1515
1516         /* Initialize VBI template */
1517         memcpy(&cx23885_vbi_template, &cx23885_video_template,
1518                 sizeof(cx23885_vbi_template));
1519         strcpy(cx23885_vbi_template.name, "cx23885-vbi");
1520         cx23885_vbi_template.type = VID_TYPE_TELETEXT|VID_TYPE_TUNER;
1521
1522         dev->tvnorm = cx23885_video_template.current_norm;
1523
1524         /* init video dma queues */
1525         INIT_LIST_HEAD(&dev->vidq.active);
1526         INIT_LIST_HEAD(&dev->vidq.queued);
1527         dev->vidq.timeout.function = cx23885_vid_timeout;
1528         dev->vidq.timeout.data = (unsigned long)dev;
1529         init_timer(&dev->vidq.timeout);
1530         cx23885_risc_stopper(dev->pci, &dev->vidq.stopper,
1531                 VID_A_DMA_CTL, 0x11, 0x00);
1532
1533         /* Don't enable VBI yet */
1534         cx_set(PCI_INT_MSK, 1);
1535
1536
1537         /* register v4l devices */
1538         dev->video_dev = cx23885_vdev_init(dev, dev->pci,
1539                 &cx23885_video_template, "video");
1540         err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
1541                                     video_nr[dev->nr]);
1542         if (err < 0) {
1543                 printk(KERN_INFO "%s: can't register video device\n",
1544                         dev->name);
1545                 goto fail_unreg;
1546         }
1547         printk(KERN_INFO "%s/0: registered device video%d [v4l2]\n",
1548                dev->name, dev->video_dev->minor & 0x1f);
1549         /* initial device configuration */
1550         mutex_lock(&dev->lock);
1551         cx23885_set_tvnorm(dev, dev->tvnorm);
1552         init_controls(dev);
1553         cx23885_video_mux(dev, 0);
1554         mutex_unlock(&dev->lock);
1555
1556         return 0;
1557
1558 fail_unreg:
1559         cx23885_video_unregister(dev);
1560         return err;
1561 }
1562