2 * Driver for the Conexant CX23885 PCIe bridge
4 * Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
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.
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
15 * GNU General Public License for more details.
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.
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>
35 #include <media/v4l2-common.h>
36 #include <media/v4l2-ioctl.h>
38 #ifdef CONFIG_VIDEO_V4L1_COMPAT
39 /* Include V4L1 specific functions. Should be removed soon */
40 #include <linux/videodev.h>
43 MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
44 MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
45 MODULE_LICENSE("GPL");
47 /* ------------------------------------------------------------------ */
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 };
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);
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");
61 static unsigned int video_debug;
62 module_param(video_debug, int, 0644);
63 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
65 static unsigned int irq_debug;
66 module_param(irq_debug, int, 0644);
67 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
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");
73 #define dprintk(level, fmt, arg...)\
74 do { if (video_debug >= level)\
75 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
78 /* ------------------------------------------------------------------- */
81 #define FORMAT_FLAGS_PACKED 0x01
83 static struct cx23885_fmt formats[] = {
85 .name = "8 bpp, gray",
86 .fourcc = V4L2_PIX_FMT_GREY,
88 .flags = FORMAT_FLAGS_PACKED,
90 .name = "15 bpp RGB, le",
91 .fourcc = V4L2_PIX_FMT_RGB555,
93 .flags = FORMAT_FLAGS_PACKED,
95 .name = "15 bpp RGB, be",
96 .fourcc = V4L2_PIX_FMT_RGB555X,
98 .flags = FORMAT_FLAGS_PACKED,
100 .name = "16 bpp RGB, le",
101 .fourcc = V4L2_PIX_FMT_RGB565,
103 .flags = FORMAT_FLAGS_PACKED,
105 .name = "16 bpp RGB, be",
106 .fourcc = V4L2_PIX_FMT_RGB565X,
108 .flags = FORMAT_FLAGS_PACKED,
110 .name = "24 bpp RGB, le",
111 .fourcc = V4L2_PIX_FMT_BGR24,
113 .flags = FORMAT_FLAGS_PACKED,
115 .name = "32 bpp RGB, le",
116 .fourcc = V4L2_PIX_FMT_BGR32,
118 .flags = FORMAT_FLAGS_PACKED,
120 .name = "32 bpp RGB, be",
121 .fourcc = V4L2_PIX_FMT_RGB32,
123 .flags = FORMAT_FLAGS_PACKED,
125 .name = "4:2:2, packed, YUYV",
126 .fourcc = V4L2_PIX_FMT_YUYV,
128 .flags = FORMAT_FLAGS_PACKED,
130 .name = "4:2:2, packed, UYVY",
131 .fourcc = V4L2_PIX_FMT_UYVY,
133 .flags = FORMAT_FLAGS_PACKED,
137 static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc)
141 for (i = 0; i < ARRAY_SIZE(formats); i++)
142 if (formats[i].fourcc == fourcc)
145 printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc);
149 /* ------------------------------------------------------------------- */
151 static const struct v4l2_queryctrl no_ctl = {
153 .flags = V4L2_CTRL_FLAG_DISABLED,
156 static struct cx23885_ctrl cx23885_ctls[] = {
160 .id = V4L2_CID_BRIGHTNESS,
161 .name = "Brightness",
165 .default_value = 0x7f,
166 .type = V4L2_CTRL_TYPE_INTEGER,
174 .id = V4L2_CID_CONTRAST,
179 .default_value = 0x3f,
180 .type = V4L2_CTRL_TYPE_INTEGER,
193 .default_value = 0x7f,
194 .type = V4L2_CTRL_TYPE_INTEGER,
201 /* strictly, this only describes only U saturation.
202 * V saturation is handled specially through code.
205 .id = V4L2_CID_SATURATION,
206 .name = "Saturation",
210 .default_value = 0x7f,
211 .type = V4L2_CTRL_TYPE_INTEGER,
220 .id = V4L2_CID_AUDIO_MUTE,
225 .type = V4L2_CTRL_TYPE_BOOLEAN,
228 .mask = (0x1f << 24),
232 .id = V4L2_CID_AUDIO_VOLUME,
237 .default_value = 0x3f,
238 .type = V4L2_CTRL_TYPE_INTEGER,
240 .reg = PATH1_VOL_CTL,
245 static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls);
247 /* Must be sorted from low to high control ID! */
248 static const u32 cx23885_user_ctrls[] = {
254 V4L2_CID_AUDIO_VOLUME,
259 static const u32 *ctrl_classes[] = {
264 static void cx23885_video_wakeup(struct cx23885_dev *dev,
265 struct cx23885_dmaqueue *q, u32 count)
267 struct cx23885_buffer *buf;
270 for (bc = 0;; bc++) {
271 if (list_empty(&q->active))
273 buf = list_entry(q->active.next,
274 struct cx23885_buffer, vb.queue);
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)
282 do_gettimeofday(&buf->vb.ts);
283 dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i,
285 buf->vb.state = VIDEOBUF_DONE;
286 list_del(&buf->vb.queue);
287 wake_up(&buf->vb.done);
289 if (list_empty(&q->active))
290 del_timer(&q->timeout);
292 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
294 printk(KERN_ERR "%s: %d buffers handled (should be 1)\n",
298 static int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
300 dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
303 v4l2_norm_to_name(norm));
307 /* Tell the analog tuner/demods */
308 cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_STD, &norm);
310 /* Tell the internal A/V decoder */
311 cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_STD, &norm);
316 static struct video_device *cx23885_vdev_init(struct cx23885_dev *dev,
318 struct video_device *template,
321 struct video_device *vfd;
322 dprintk(1, "%s()\n", __func__);
324 vfd = video_device_alloc();
329 vfd->parent = &pci->dev;
330 vfd->release = video_device_release;
331 snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
332 dev->name, type, cx23885_boards[dev->board].name);
336 static int cx23885_ctrl_query(struct v4l2_queryctrl *qctrl)
340 if (qctrl->id < V4L2_CID_BASE ||
341 qctrl->id >= V4L2_CID_LASTP1)
343 for (i = 0; i < CX23885_CTLS; i++)
344 if (cx23885_ctls[i].v.id == qctrl->id)
346 if (i == CX23885_CTLS) {
350 *qctrl = cx23885_ctls[i].v;
354 /* ------------------------------------------------------------------- */
355 /* resource management */
357 static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh,
360 dprintk(1, "%s()\n", __func__);
361 if (fh->resources & bit)
362 /* have it already allocated */
366 mutex_lock(&dev->lock);
367 if (dev->resources & bit) {
368 /* no, someone else uses it */
369 mutex_unlock(&dev->lock);
372 /* it's free, grab it */
373 fh->resources |= bit;
374 dev->resources |= bit;
375 dprintk(1, "res: get %d\n", bit);
376 mutex_unlock(&dev->lock);
380 static int res_check(struct cx23885_fh *fh, unsigned int bit)
382 return fh->resources & bit;
385 static int res_locked(struct cx23885_dev *dev, unsigned int bit)
387 return dev->resources & bit;
390 static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh,
393 BUG_ON((fh->resources & bits) != bits);
394 dprintk(1, "%s()\n", __func__);
396 mutex_lock(&dev->lock);
397 fh->resources &= ~bits;
398 dev->resources &= ~bits;
399 dprintk(1, "res: put %d\n", bits);
400 mutex_unlock(&dev->lock);
403 static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
405 struct v4l2_routing route;
406 memset(&route, 0, sizeof(route));
408 dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
410 input, INPUT(input)->vmux,
411 INPUT(input)->gpio0, INPUT(input)->gpio1,
412 INPUT(input)->gpio2, INPUT(input)->gpio3);
415 route.input = INPUT(input)->vmux;
417 /* Tell the internal A/V decoder */
418 cx23885_call_i2c_clients(&dev->i2c_bus[2],
419 VIDIOC_INT_S_VIDEO_ROUTING, &route);
424 /* ------------------------------------------------------------------ */
425 static int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width,
426 unsigned int height, enum v4l2_field field)
428 dprintk(1, "%s()\n", __func__);
432 static int cx23885_start_video_dma(struct cx23885_dev *dev,
433 struct cx23885_dmaqueue *q,
434 struct cx23885_buffer *buf)
436 dprintk(1, "%s()\n", __func__);
438 /* setup fifo + format */
439 cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
440 buf->bpl, buf->risc.dma);
441 cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field);
444 cx_write(VID_A_GPCNT_CTL, 3);
448 cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01);
449 cx_set(VID_A_INT_MSK, 0x000011);
452 cx_set(DEV_CNTRL2, (1<<5));
453 cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */
459 static int cx23885_restart_video_queue(struct cx23885_dev *dev,
460 struct cx23885_dmaqueue *q)
462 struct cx23885_buffer *buf, *prev;
463 struct list_head *item;
464 dprintk(1, "%s()\n", __func__);
466 if (!list_empty(&q->active)) {
467 buf = list_entry(q->active.next, struct cx23885_buffer,
469 dprintk(2, "restart_queue [%p/%d]: restart dma\n",
471 cx23885_start_video_dma(dev, q, buf);
472 list_for_each(item, &q->active) {
473 buf = list_entry(item, struct cx23885_buffer,
475 buf->count = q->count++;
477 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
483 if (list_empty(&q->queued))
485 buf = list_entry(q->queued.next, struct cx23885_buffer,
488 list_move_tail(&buf->vb.queue, &q->active);
489 cx23885_start_video_dma(dev, q, buf);
490 buf->vb.state = VIDEOBUF_ACTIVE;
491 buf->count = q->count++;
492 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
493 dprintk(2, "[%p/%d] restart_queue - first active\n",
496 } else if (prev->vb.width == buf->vb.width &&
497 prev->vb.height == buf->vb.height &&
498 prev->fmt == buf->fmt) {
499 list_move_tail(&buf->vb.queue, &q->active);
500 buf->vb.state = VIDEOBUF_ACTIVE;
501 buf->count = q->count++;
502 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
503 prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
504 dprintk(2, "[%p/%d] restart_queue - move to active\n",
513 static int buffer_setup(struct videobuf_queue *q, unsigned int *count,
516 struct cx23885_fh *fh = q->priv_data;
518 *size = fh->fmt->depth*fh->width*fh->height >> 3;
521 while (*size * *count > vid_limit * 1024 * 1024)
526 static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
527 enum v4l2_field field)
529 struct cx23885_fh *fh = q->priv_data;
530 struct cx23885_dev *dev = fh->dev;
531 struct cx23885_buffer *buf =
532 container_of(vb, struct cx23885_buffer, vb);
533 int rc, init_buffer = 0;
534 u32 line0_offset, line1_offset;
535 struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
537 BUG_ON(NULL == fh->fmt);
538 if (fh->width < 48 || fh->width > norm_maxw(dev->tvnorm) ||
539 fh->height < 32 || fh->height > norm_maxh(dev->tvnorm))
541 buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
542 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
545 if (buf->fmt != fh->fmt ||
546 buf->vb.width != fh->width ||
547 buf->vb.height != fh->height ||
548 buf->vb.field != field) {
550 buf->vb.width = fh->width;
551 buf->vb.height = fh->height;
552 buf->vb.field = field;
556 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
558 rc = videobuf_iolock(q, &buf->vb, NULL);
564 buf->bpl = buf->vb.width * buf->fmt->depth >> 3;
565 switch (buf->vb.field) {
567 cx23885_risc_buffer(dev->pci, &buf->risc,
568 dma->sglist, 0, UNSET,
569 buf->bpl, 0, buf->vb.height);
571 case V4L2_FIELD_BOTTOM:
572 cx23885_risc_buffer(dev->pci, &buf->risc,
573 dma->sglist, UNSET, 0,
574 buf->bpl, 0, buf->vb.height);
576 case V4L2_FIELD_INTERLACED:
577 if (dev->tvnorm & V4L2_STD_NTSC) {
578 /* cx25840 transmits NTSC bottom field first */
579 dprintk(1, "%s() Creating NTSC risc\n",
581 line0_offset = buf->bpl;
584 /* All other formats are top field first */
585 dprintk(1, "%s() Creating PAL/SECAM risc\n",
588 line1_offset = buf->bpl;
590 cx23885_risc_buffer(dev->pci, &buf->risc,
591 dma->sglist, line0_offset,
594 buf->vb.height >> 1);
596 case V4L2_FIELD_SEQ_TB:
597 cx23885_risc_buffer(dev->pci, &buf->risc,
599 0, buf->bpl * (buf->vb.height >> 1),
601 buf->vb.height >> 1);
603 case V4L2_FIELD_SEQ_BT:
604 cx23885_risc_buffer(dev->pci, &buf->risc,
606 buf->bpl * (buf->vb.height >> 1), 0,
608 buf->vb.height >> 1);
614 dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
616 fh->width, fh->height, fh->fmt->depth, fh->fmt->name,
617 (unsigned long)buf->risc.dma);
619 buf->vb.state = VIDEOBUF_PREPARED;
623 cx23885_free_buffer(q, buf);
627 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
629 struct cx23885_buffer *buf = container_of(vb,
630 struct cx23885_buffer, vb);
631 struct cx23885_buffer *prev;
632 struct cx23885_fh *fh = vq->priv_data;
633 struct cx23885_dev *dev = fh->dev;
634 struct cx23885_dmaqueue *q = &dev->vidq;
636 /* add jump to stopper */
637 buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
638 buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
639 buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
641 if (!list_empty(&q->queued)) {
642 list_add_tail(&buf->vb.queue, &q->queued);
643 buf->vb.state = VIDEOBUF_QUEUED;
644 dprintk(2, "[%p/%d] buffer_queue - append to queued\n",
647 } else if (list_empty(&q->active)) {
648 list_add_tail(&buf->vb.queue, &q->active);
649 cx23885_start_video_dma(dev, q, buf);
650 buf->vb.state = VIDEOBUF_ACTIVE;
651 buf->count = q->count++;
652 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
653 dprintk(2, "[%p/%d] buffer_queue - first active\n",
657 prev = list_entry(q->active.prev, struct cx23885_buffer,
659 if (prev->vb.width == buf->vb.width &&
660 prev->vb.height == buf->vb.height &&
661 prev->fmt == buf->fmt) {
662 list_add_tail(&buf->vb.queue, &q->active);
663 buf->vb.state = VIDEOBUF_ACTIVE;
664 buf->count = q->count++;
665 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
666 /* 64 bit bits 63-32 */
667 prev->risc.jmp[2] = cpu_to_le32(0);
668 dprintk(2, "[%p/%d] buffer_queue - append to active\n",
672 list_add_tail(&buf->vb.queue, &q->queued);
673 buf->vb.state = VIDEOBUF_QUEUED;
674 dprintk(2, "[%p/%d] buffer_queue - first queued\n",
680 static void buffer_release(struct videobuf_queue *q,
681 struct videobuf_buffer *vb)
683 struct cx23885_buffer *buf = container_of(vb,
684 struct cx23885_buffer, vb);
686 cx23885_free_buffer(q, buf);
689 static struct videobuf_queue_ops cx23885_video_qops = {
690 .buf_setup = buffer_setup,
691 .buf_prepare = buffer_prepare,
692 .buf_queue = buffer_queue,
693 .buf_release = buffer_release,
696 static struct videobuf_queue *get_queue(struct cx23885_fh *fh)
699 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
701 case V4L2_BUF_TYPE_VBI_CAPTURE:
709 static int get_resource(struct cx23885_fh *fh)
712 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
713 return RESOURCE_VIDEO;
714 case V4L2_BUF_TYPE_VBI_CAPTURE:
722 static int video_open(struct file *file)
724 int minor = video_devdata(file)->minor;
725 struct cx23885_dev *h, *dev = NULL;
726 struct cx23885_fh *fh;
727 struct list_head *list;
728 enum v4l2_buf_type type = 0;
732 list_for_each(list, &cx23885_devlist) {
733 h = list_entry(list, struct cx23885_dev, devlist);
735 h->video_dev->minor == minor) {
737 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
740 h->vbi_dev->minor == minor) {
742 type = V4L2_BUF_TYPE_VBI_CAPTURE;
745 h->radio_dev->minor == minor) {
755 dprintk(1, "open minor=%d radio=%d type=%s\n",
756 minor, radio, v4l2_type_names[type]);
758 /* allocate + initialize per filehandle data */
759 fh = kzalloc(sizeof(*fh), GFP_KERNEL);
764 file->private_data = fh;
770 fh->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
772 videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops,
773 &dev->pci->dev, &dev->slock,
774 V4L2_BUF_TYPE_VIDEO_CAPTURE,
775 V4L2_FIELD_INTERLACED,
776 sizeof(struct cx23885_buffer),
779 dprintk(1, "post videobuf_queue_init()\n");
786 static ssize_t video_read(struct file *file, char __user *data,
787 size_t count, loff_t *ppos)
789 struct cx23885_fh *fh = file->private_data;
792 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
793 if (res_locked(fh->dev, RESOURCE_VIDEO))
795 return videobuf_read_one(&fh->vidq, data, count, ppos,
796 file->f_flags & O_NONBLOCK);
797 case V4L2_BUF_TYPE_VBI_CAPTURE:
798 if (!res_get(fh->dev, fh, RESOURCE_VBI))
800 return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1,
801 file->f_flags & O_NONBLOCK);
808 static unsigned int video_poll(struct file *file,
809 struct poll_table_struct *wait)
811 struct cx23885_fh *fh = file->private_data;
812 struct cx23885_buffer *buf;
814 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
815 if (!res_get(fh->dev, fh, RESOURCE_VBI))
817 return videobuf_poll_stream(file, &fh->vbiq, wait);
820 if (res_check(fh, RESOURCE_VIDEO)) {
821 /* streaming capture */
822 if (list_empty(&fh->vidq.stream))
824 buf = list_entry(fh->vidq.stream.next,
825 struct cx23885_buffer, vb.stream);
828 buf = (struct cx23885_buffer *)fh->vidq.read_buf;
832 poll_wait(file, &buf->vb.done, wait);
833 if (buf->vb.state == VIDEOBUF_DONE ||
834 buf->vb.state == VIDEOBUF_ERROR)
835 return POLLIN|POLLRDNORM;
839 static int video_release(struct file *file)
841 struct cx23885_fh *fh = file->private_data;
842 struct cx23885_dev *dev = fh->dev;
844 /* turn off overlay */
845 if (res_check(fh, RESOURCE_OVERLAY)) {
847 res_free(dev, fh, RESOURCE_OVERLAY);
850 /* stop video capture */
851 if (res_check(fh, RESOURCE_VIDEO)) {
852 videobuf_queue_cancel(&fh->vidq);
853 res_free(dev, fh, RESOURCE_VIDEO);
855 if (fh->vidq.read_buf) {
856 buffer_release(&fh->vidq, fh->vidq.read_buf);
857 kfree(fh->vidq.read_buf);
860 /* stop vbi capture */
861 if (res_check(fh, RESOURCE_VBI)) {
862 if (fh->vbiq.streaming)
863 videobuf_streamoff(&fh->vbiq);
864 if (fh->vbiq.reading)
865 videobuf_read_stop(&fh->vbiq);
866 res_free(dev, fh, RESOURCE_VBI);
869 videobuf_mmap_free(&fh->vidq);
870 file->private_data = NULL;
873 /* We are not putting the tuner to sleep here on exit, because
874 * we want to use the mpeg encoder in another session to capture
875 * tuner video. Closing this will result in no video to the encoder.
881 static int video_mmap(struct file *file, struct vm_area_struct *vma)
883 struct cx23885_fh *fh = file->private_data;
885 return videobuf_mmap_mapper(get_queue(fh), vma);
888 /* ------------------------------------------------------------------ */
889 /* VIDEO CTRL IOCTLS */
891 static int cx23885_get_control(struct cx23885_dev *dev,
892 struct v4l2_control *ctl)
894 dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__);
895 cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_G_CTRL, ctl);
899 static int cx23885_set_control(struct cx23885_dev *dev,
900 struct v4l2_control *ctl)
902 dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)"
903 " (disabled - no action)\n", __func__);
907 static void init_controls(struct cx23885_dev *dev)
909 struct v4l2_control ctrl;
912 for (i = 0; i < CX23885_CTLS; i++) {
913 ctrl.id = cx23885_ctls[i].v.id;
914 ctrl.value = cx23885_ctls[i].v.default_value;
916 cx23885_set_control(dev, &ctrl);
920 /* ------------------------------------------------------------------ */
923 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
924 struct v4l2_format *f)
926 struct cx23885_fh *fh = priv;
928 f->fmt.pix.width = fh->width;
929 f->fmt.pix.height = fh->height;
930 f->fmt.pix.field = fh->vidq.field;
931 f->fmt.pix.pixelformat = fh->fmt->fourcc;
932 f->fmt.pix.bytesperline =
933 (f->fmt.pix.width * fh->fmt->depth) >> 3;
934 f->fmt.pix.sizeimage =
935 f->fmt.pix.height * f->fmt.pix.bytesperline;
940 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
941 struct v4l2_format *f)
943 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
944 struct cx23885_fmt *fmt;
945 enum v4l2_field field;
946 unsigned int maxw, maxh;
948 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
952 field = f->fmt.pix.field;
953 maxw = norm_maxw(dev->tvnorm);
954 maxh = norm_maxh(dev->tvnorm);
956 if (V4L2_FIELD_ANY == field) {
957 field = (f->fmt.pix.height > maxh/2)
958 ? V4L2_FIELD_INTERLACED
964 case V4L2_FIELD_BOTTOM:
967 case V4L2_FIELD_INTERLACED:
973 f->fmt.pix.field = field;
974 if (f->fmt.pix.height < 32)
975 f->fmt.pix.height = 32;
976 if (f->fmt.pix.height > maxh)
977 f->fmt.pix.height = maxh;
978 if (f->fmt.pix.width < 48)
979 f->fmt.pix.width = 48;
980 if (f->fmt.pix.width > maxw)
981 f->fmt.pix.width = maxw;
982 f->fmt.pix.width &= ~0x03;
983 f->fmt.pix.bytesperline =
984 (f->fmt.pix.width * fmt->depth) >> 3;
985 f->fmt.pix.sizeimage =
986 f->fmt.pix.height * f->fmt.pix.bytesperline;
991 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
992 struct v4l2_format *f)
994 struct cx23885_fh *fh = priv;
995 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
998 dprintk(2, "%s()\n", __func__);
999 err = vidioc_try_fmt_vid_cap(file, priv, f);
1003 fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1004 fh->width = f->fmt.pix.width;
1005 fh->height = f->fmt.pix.height;
1006 fh->vidq.field = f->fmt.pix.field;
1007 dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
1008 fh->width, fh->height, fh->vidq.field);
1009 cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_FMT, f);
1013 static int vidioc_querycap(struct file *file, void *priv,
1014 struct v4l2_capability *cap)
1016 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1018 strcpy(cap->driver, "cx23885");
1019 strlcpy(cap->card, cx23885_boards[dev->board].name,
1021 sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1022 cap->version = CX23885_VERSION_CODE;
1024 V4L2_CAP_VIDEO_CAPTURE |
1025 V4L2_CAP_READWRITE |
1026 V4L2_CAP_STREAMING |
1027 V4L2_CAP_VBI_CAPTURE;
1028 if (UNSET != dev->tuner_type)
1029 cap->capabilities |= V4L2_CAP_TUNER;
1033 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1034 struct v4l2_fmtdesc *f)
1036 if (unlikely(f->index >= ARRAY_SIZE(formats)))
1039 strlcpy(f->description, formats[f->index].name,
1040 sizeof(f->description));
1041 f->pixelformat = formats[f->index].fourcc;
1046 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1047 static int vidiocgmbuf(struct file *file, void *priv,
1048 struct video_mbuf *mbuf)
1050 struct cx23885_fh *fh = priv;
1051 struct videobuf_queue *q;
1052 struct v4l2_requestbuffers req;
1057 memset(&req, 0, sizeof(req));
1060 req.memory = V4L2_MEMORY_MMAP;
1061 err = videobuf_reqbufs(q, &req);
1065 mbuf->frames = req.count;
1067 for (i = 0; i < mbuf->frames; i++) {
1068 mbuf->offsets[i] = q->bufs[i]->boff;
1069 mbuf->size += q->bufs[i]->bsize;
1075 static int vidioc_reqbufs(struct file *file, void *priv,
1076 struct v4l2_requestbuffers *p)
1078 struct cx23885_fh *fh = priv;
1079 return videobuf_reqbufs(get_queue(fh), p);
1082 static int vidioc_querybuf(struct file *file, void *priv,
1083 struct v4l2_buffer *p)
1085 struct cx23885_fh *fh = priv;
1086 return videobuf_querybuf(get_queue(fh), p);
1089 static int vidioc_qbuf(struct file *file, void *priv,
1090 struct v4l2_buffer *p)
1092 struct cx23885_fh *fh = priv;
1093 return videobuf_qbuf(get_queue(fh), p);
1096 static int vidioc_dqbuf(struct file *file, void *priv,
1097 struct v4l2_buffer *p)
1099 struct cx23885_fh *fh = priv;
1100 return videobuf_dqbuf(get_queue(fh), p,
1101 file->f_flags & O_NONBLOCK);
1104 static int vidioc_streamon(struct file *file, void *priv,
1105 enum v4l2_buf_type i)
1107 struct cx23885_fh *fh = priv;
1108 struct cx23885_dev *dev = fh->dev;
1109 dprintk(1, "%s()\n", __func__);
1111 if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
1113 if (unlikely(i != fh->type))
1116 if (unlikely(!res_get(dev, fh, get_resource(fh))))
1118 return videobuf_streamon(get_queue(fh));
1121 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1123 struct cx23885_fh *fh = priv;
1124 struct cx23885_dev *dev = fh->dev;
1126 dprintk(1, "%s()\n", __func__);
1128 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1133 res = get_resource(fh);
1134 err = videobuf_streamoff(get_queue(fh));
1137 res_free(dev, fh, res);
1141 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
1143 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1144 dprintk(1, "%s()\n", __func__);
1146 mutex_lock(&dev->lock);
1147 cx23885_set_tvnorm(dev, *tvnorms);
1148 mutex_unlock(&dev->lock);
1153 static int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
1155 static const char *iname[] = {
1156 [CX23885_VMUX_COMPOSITE1] = "Composite1",
1157 [CX23885_VMUX_COMPOSITE2] = "Composite2",
1158 [CX23885_VMUX_COMPOSITE3] = "Composite3",
1159 [CX23885_VMUX_COMPOSITE4] = "Composite4",
1160 [CX23885_VMUX_SVIDEO] = "S-Video",
1161 [CX23885_VMUX_TELEVISION] = "Television",
1162 [CX23885_VMUX_CABLE] = "Cable TV",
1163 [CX23885_VMUX_DVB] = "DVB",
1164 [CX23885_VMUX_DEBUG] = "for debug only",
1167 dprintk(1, "%s()\n", __func__);
1173 if (0 == INPUT(n)->type)
1176 memset(i, 0, sizeof(*i));
1178 i->type = V4L2_INPUT_TYPE_CAMERA;
1179 strcpy(i->name, iname[INPUT(n)->type]);
1180 if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
1181 (CX23885_VMUX_CABLE == INPUT(n)->type))
1182 i->type = V4L2_INPUT_TYPE_TUNER;
1183 i->std = CX23885_NORMS;
1187 static int vidioc_enum_input(struct file *file, void *priv,
1188 struct v4l2_input *i)
1190 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1191 dprintk(1, "%s()\n", __func__);
1192 return cx23885_enum_input(dev, i);
1195 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1197 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1200 dprintk(1, "%s() returns %d\n", __func__, *i);
1204 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1206 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1208 dprintk(1, "%s(%d)\n", __func__, i);
1211 dprintk(1, "%s() -EINVAL\n", __func__);
1215 mutex_lock(&dev->lock);
1216 cx23885_video_mux(dev, i);
1217 mutex_unlock(&dev->lock);
1221 static int vidioc_queryctrl(struct file *file, void *priv,
1222 struct v4l2_queryctrl *qctrl)
1224 qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
1225 if (unlikely(qctrl->id == 0))
1227 return cx23885_ctrl_query(qctrl);
1230 static int vidioc_g_ctrl(struct file *file, void *priv,
1231 struct v4l2_control *ctl)
1233 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1235 return cx23885_get_control(dev, ctl);
1238 static int vidioc_s_ctrl(struct file *file, void *priv,
1239 struct v4l2_control *ctl)
1241 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1243 return cx23885_set_control(dev, ctl);
1246 static int vidioc_g_tuner(struct file *file, void *priv,
1247 struct v4l2_tuner *t)
1249 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1251 if (unlikely(UNSET == dev->tuner_type))
1256 strcpy(t->name, "Television");
1257 t->type = V4L2_TUNER_ANALOG_TV;
1258 t->capability = V4L2_TUNER_CAP_NORM;
1259 t->rangehigh = 0xffffffffUL;
1260 t->signal = 0xffff ; /* LOCKED */
1264 static int vidioc_s_tuner(struct file *file, void *priv,
1265 struct v4l2_tuner *t)
1267 struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1269 if (UNSET == dev->tuner_type)
1276 static int vidioc_g_frequency(struct file *file, void *priv,
1277 struct v4l2_frequency *f)
1279 struct cx23885_fh *fh = priv;
1280 struct cx23885_dev *dev = fh->dev;
1282 if (unlikely(UNSET == dev->tuner_type))
1285 /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */
1286 f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1287 f->frequency = dev->freq;
1289 cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_G_FREQUENCY, f);
1294 static int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f)
1296 if (unlikely(UNSET == dev->tuner_type))
1298 if (unlikely(f->tuner != 0))
1301 mutex_lock(&dev->lock);
1302 dev->freq = f->frequency;
1304 cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_FREQUENCY, f);
1306 /* When changing channels it is required to reset TVAUDIO */
1309 mutex_unlock(&dev->lock);
1314 static int vidioc_s_frequency(struct file *file, void *priv,
1315 struct v4l2_frequency *f)
1317 struct cx23885_fh *fh = priv;
1318 struct cx23885_dev *dev = fh->dev;
1320 if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1322 if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1326 cx23885_set_freq(dev, f);
1329 #ifdef CONFIG_VIDEO_ADV_DEBUG
1330 static int vidioc_g_register(struct file *file, void *fh,
1331 struct v4l2_dbg_register *reg)
1333 struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
1335 if (!v4l2_chip_match_host(®->match))
1338 cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_G_REGISTER, reg);
1343 static int vidioc_s_register(struct file *file, void *fh,
1344 struct v4l2_dbg_register *reg)
1346 struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
1348 if (!v4l2_chip_match_host(®->match))
1351 cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_S_REGISTER, reg);
1357 /* ----------------------------------------------------------- */
1359 static void cx23885_vid_timeout(unsigned long data)
1361 struct cx23885_dev *dev = (struct cx23885_dev *)data;
1362 struct cx23885_dmaqueue *q = &dev->vidq;
1363 struct cx23885_buffer *buf;
1364 unsigned long flags;
1366 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1368 cx_clear(VID_A_DMA_CTL, 0x11);
1370 spin_lock_irqsave(&dev->slock, flags);
1371 while (!list_empty(&q->active)) {
1372 buf = list_entry(q->active.next,
1373 struct cx23885_buffer, vb.queue);
1374 list_del(&buf->vb.queue);
1375 buf->vb.state = VIDEOBUF_ERROR;
1376 wake_up(&buf->vb.done);
1377 printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n",
1378 dev->name, buf, buf->vb.i,
1379 (unsigned long)buf->risc.dma);
1381 cx23885_restart_video_queue(dev, q);
1382 spin_unlock_irqrestore(&dev->slock, flags);
1385 int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
1390 mask = cx_read(VID_A_INT_MSK);
1391 if (0 == (status & mask))
1393 cx_write(VID_A_INT_STAT, status);
1395 dprintk(2, "%s() status = 0x%08x\n", __func__, status);
1396 /* risc op code error */
1397 if (status & (1 << 16)) {
1398 printk(KERN_WARNING "%s/0: video risc op code error\n",
1400 cx_clear(VID_A_DMA_CTL, 0x11);
1401 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1405 if (status & 0x01) {
1406 spin_lock(&dev->slock);
1407 count = cx_read(VID_A_GPCNT);
1408 cx23885_video_wakeup(dev, &dev->vidq, count);
1409 spin_unlock(&dev->slock);
1413 if (status & 0x10) {
1414 dprintk(2, "stopper video\n");
1415 spin_lock(&dev->slock);
1416 cx23885_restart_video_queue(dev, &dev->vidq);
1417 spin_unlock(&dev->slock);
1424 /* ----------------------------------------------------------- */
1425 /* exported stuff */
1427 static const struct v4l2_file_operations video_fops = {
1428 .owner = THIS_MODULE,
1430 .release = video_release,
1434 .ioctl = video_ioctl2,
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,
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,
1472 static struct video_device cx23885_vbi_template;
1473 static struct video_device cx23885_video_template = {
1474 .name = "cx23885-video",
1475 .fops = &video_fops,
1477 .ioctl_ops = &video_ioctl_ops,
1478 .tvnorms = CX23885_NORMS,
1479 .current_norm = V4L2_STD_NTSC_M,
1482 static const struct v4l2_file_operations radio_fops = {
1483 .owner = THIS_MODULE,
1485 .release = video_release,
1486 .ioctl = video_ioctl2,
1490 void cx23885_video_unregister(struct cx23885_dev *dev)
1492 dprintk(1, "%s()\n", __func__);
1493 cx_clear(PCI_INT_MSK, 1);
1495 if (dev->video_dev) {
1496 if (-1 != dev->video_dev->minor)
1497 video_unregister_device(dev->video_dev);
1499 video_device_release(dev->video_dev);
1500 dev->video_dev = NULL;
1502 btcx_riscmem_free(dev->pci, &dev->vidq.stopper);
1506 int cx23885_video_register(struct cx23885_dev *dev)
1510 dprintk(1, "%s()\n", __func__);
1511 spin_lock_init(&dev->slock);
1513 /* Initialize VBI template */
1514 memcpy(&cx23885_vbi_template, &cx23885_video_template,
1515 sizeof(cx23885_vbi_template));
1516 strcpy(cx23885_vbi_template.name, "cx23885-vbi");
1518 dev->tvnorm = cx23885_video_template.current_norm;
1520 /* init video dma queues */
1521 INIT_LIST_HEAD(&dev->vidq.active);
1522 INIT_LIST_HEAD(&dev->vidq.queued);
1523 dev->vidq.timeout.function = cx23885_vid_timeout;
1524 dev->vidq.timeout.data = (unsigned long)dev;
1525 init_timer(&dev->vidq.timeout);
1526 cx23885_risc_stopper(dev->pci, &dev->vidq.stopper,
1527 VID_A_DMA_CTL, 0x11, 0x00);
1529 /* Don't enable VBI yet */
1530 cx_set(PCI_INT_MSK, 1);
1533 /* register v4l devices */
1534 dev->video_dev = cx23885_vdev_init(dev, dev->pci,
1535 &cx23885_video_template, "video");
1536 err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
1539 printk(KERN_INFO "%s: can't register video device\n",
1543 printk(KERN_INFO "%s/0: registered device video%d [v4l2]\n",
1544 dev->name, dev->video_dev->num);
1545 /* initial device configuration */
1546 mutex_lock(&dev->lock);
1547 cx23885_set_tvnorm(dev, dev->tvnorm);
1549 cx23885_video_mux(dev, 0);
1550 mutex_unlock(&dev->lock);
1555 cx23885_video_unregister(dev);