1300 lines
30 KiB
C
1300 lines
30 KiB
C
/*
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* Driver for the Conexant CX25821 PCIe bridge
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*
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* Copyright (C) 2009 Conexant Systems Inc.
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* Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
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* Based on Steven Toth <stoth@linuxtv.org> cx23885 driver
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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*
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "cx25821-video.h"
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MODULE_DESCRIPTION("v4l2 driver module for cx25821 based TV cards");
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MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
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MODULE_LICENSE("GPL");
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static unsigned int video_nr[] = {[0 ... (CX25821_MAXBOARDS - 1)] = UNSET };
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static unsigned int radio_nr[] = {[0 ... (CX25821_MAXBOARDS - 1)] = UNSET };
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module_param_array(video_nr, int, NULL, 0444);
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module_param_array(radio_nr, int, NULL, 0444);
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MODULE_PARM_DESC(video_nr, "video device numbers");
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MODULE_PARM_DESC(radio_nr, "radio device numbers");
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static unsigned int video_debug = VIDEO_DEBUG;
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module_param(video_debug, int, 0644);
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MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
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static unsigned int irq_debug;
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module_param(irq_debug, int, 0644);
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MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
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unsigned int vid_limit = 16;
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module_param(vid_limit, int, 0644);
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MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
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static void init_controls(struct cx25821_dev *dev, int chan_num);
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#define FORMAT_FLAGS_PACKED 0x01
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struct cx25821_fmt formats[] = {
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{
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.name = "8 bpp, gray",
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.fourcc = V4L2_PIX_FMT_GREY,
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.depth = 8,
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.flags = FORMAT_FLAGS_PACKED,
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}, {
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.name = "4:1:1, packed, Y41P",
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.fourcc = V4L2_PIX_FMT_Y41P,
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.depth = 12,
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.flags = FORMAT_FLAGS_PACKED,
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}, {
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.name = "4:2:2, packed, YUYV",
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.fourcc = V4L2_PIX_FMT_YUYV,
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.depth = 16,
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.flags = FORMAT_FLAGS_PACKED,
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}, {
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.name = "4:2:2, packed, UYVY",
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.fourcc = V4L2_PIX_FMT_UYVY,
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.depth = 16,
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.flags = FORMAT_FLAGS_PACKED,
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}, {
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.name = "4:2:0, YUV",
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.fourcc = V4L2_PIX_FMT_YUV420,
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.depth = 12,
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.flags = FORMAT_FLAGS_PACKED,
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},
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};
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int get_format_size(void)
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{
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return ARRAY_SIZE(formats);
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}
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struct cx25821_fmt *format_by_fourcc(unsigned int fourcc)
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{
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unsigned int i;
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if (fourcc == V4L2_PIX_FMT_Y41P || fourcc == V4L2_PIX_FMT_YUV411P) {
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return formats + 1;
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}
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for (i = 0; i < ARRAY_SIZE(formats); i++)
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if (formats[i].fourcc == fourcc)
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return formats + i;
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printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc);
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return NULL;
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}
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void dump_video_queue(struct cx25821_dev *dev, struct cx25821_dmaqueue *q)
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{
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struct cx25821_buffer *buf;
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struct list_head *item;
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dprintk(1, "%s()\n", __func__);
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if (!list_empty(&q->active)) {
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list_for_each(item, &q->active)
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buf = list_entry(item, struct cx25821_buffer, vb.queue);
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}
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if (!list_empty(&q->queued)) {
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list_for_each(item, &q->queued)
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buf = list_entry(item, struct cx25821_buffer, vb.queue);
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}
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}
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void cx25821_video_wakeup(struct cx25821_dev *dev, struct cx25821_dmaqueue *q,
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u32 count)
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{
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struct cx25821_buffer *buf;
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int bc;
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for (bc = 0;; bc++) {
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if (list_empty(&q->active)) {
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dprintk(1, "bc=%d (=0: active empty)\n", bc);
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break;
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}
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buf =
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list_entry(q->active.next, struct cx25821_buffer, vb.queue);
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/* count comes from the hw and it is 16bit wide --
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* this trick handles wrap-arounds correctly for
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* up to 32767 buffers in flight... */
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if ((s16) (count - buf->count) < 0) {
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break;
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}
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do_gettimeofday(&buf->vb.ts);
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buf->vb.state = VIDEOBUF_DONE;
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list_del(&buf->vb.queue);
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wake_up(&buf->vb.done);
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}
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if (list_empty(&q->active))
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del_timer(&q->timeout);
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else
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mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
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if (bc != 1)
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printk(KERN_ERR "%s: %d buffers handled (should be 1)\n",
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__func__, bc);
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}
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#ifdef TUNER_FLAG
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int cx25821_set_tvnorm(struct cx25821_dev *dev, v4l2_std_id norm)
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{
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dprintk(1, "%s(norm = 0x%08x) name: [%s]\n", __func__,
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(unsigned int)norm, v4l2_norm_to_name(norm));
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dev->tvnorm = norm;
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/* Tell the internal A/V decoder */
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cx25821_call_all(dev, core, s_std, norm);
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return 0;
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}
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#endif
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struct video_device *cx25821_vdev_init(struct cx25821_dev *dev,
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struct pci_dev *pci,
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struct video_device *template,
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char *type)
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{
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struct video_device *vfd;
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dprintk(1, "%s()\n", __func__);
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vfd = video_device_alloc();
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if (NULL == vfd)
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return NULL;
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*vfd = *template;
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vfd->v4l2_dev = &dev->v4l2_dev;
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vfd->release = video_device_release;
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snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name, type,
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cx25821_boards[dev->board].name);
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video_set_drvdata(vfd, dev);
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return vfd;
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}
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/*
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static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl)
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{
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int i;
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if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1)
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return -EINVAL;
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for (i = 0; i < CX25821_CTLS; i++)
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if (cx25821_ctls[i].v.id == qctrl->id)
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break;
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if (i == CX25821_CTLS) {
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*qctrl = no_ctl;
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return 0;
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}
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*qctrl = cx25821_ctls[i].v;
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return 0;
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}
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*/
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// resource management
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int res_get(struct cx25821_dev *dev, struct cx25821_fh *fh, unsigned int bit)
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{
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dprintk(1, "%s()\n", __func__);
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if (fh->resources & bit)
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/* have it already allocated */
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return 1;
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/* is it free? */
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mutex_lock(&dev->lock);
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if (dev->resources & bit) {
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/* no, someone else uses it */
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mutex_unlock(&dev->lock);
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return 0;
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}
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/* it's free, grab it */
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fh->resources |= bit;
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dev->resources |= bit;
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dprintk(1, "res: get %d\n", bit);
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mutex_unlock(&dev->lock);
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return 1;
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}
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int res_check(struct cx25821_fh *fh, unsigned int bit)
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{
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return fh->resources & bit;
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}
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int res_locked(struct cx25821_dev *dev, unsigned int bit)
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{
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return dev->resources & bit;
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}
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void res_free(struct cx25821_dev *dev, struct cx25821_fh *fh, unsigned int bits)
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{
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BUG_ON((fh->resources & bits) != bits);
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dprintk(1, "%s()\n", __func__);
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mutex_lock(&dev->lock);
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fh->resources &= ~bits;
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dev->resources &= ~bits;
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dprintk(1, "res: put %d\n", bits);
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mutex_unlock(&dev->lock);
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}
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int cx25821_video_mux(struct cx25821_dev *dev, unsigned int input)
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{
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struct v4l2_routing route;
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memset(&route, 0, sizeof(route));
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dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
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__func__, input, INPUT(input)->vmux, INPUT(input)->gpio0,
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INPUT(input)->gpio1, INPUT(input)->gpio2, INPUT(input)->gpio3);
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dev->input = input;
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route.input = INPUT(input)->vmux;
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/* Tell the internal A/V decoder */
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cx25821_call_all(dev, video, s_routing, INPUT(input)->vmux, 0, 0);
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return 0;
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}
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int cx25821_start_video_dma(struct cx25821_dev *dev,
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struct cx25821_dmaqueue *q,
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struct cx25821_buffer *buf,
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struct sram_channel *channel)
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{
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int tmp = 0;
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/* setup fifo + format */
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cx25821_sram_channel_setup(dev, channel, buf->bpl, buf->risc.dma);
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/* reset counter */
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cx_write(channel->gpcnt_ctl, 3);
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q->count = 1;
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/* enable irq */
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cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | (1 << channel->i));
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cx_set(channel->int_msk, 0x11);
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/* start dma */
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cx_write(channel->dma_ctl, 0x11); /* FIFO and RISC enable */
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/* make sure upstream setting if any is reversed */
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tmp = cx_read(VID_CH_MODE_SEL);
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cx_write(VID_CH_MODE_SEL, tmp & 0xFFFFFE00);
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return 0;
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}
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int cx25821_restart_video_queue(struct cx25821_dev *dev,
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struct cx25821_dmaqueue *q,
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struct sram_channel *channel)
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{
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struct cx25821_buffer *buf, *prev;
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struct list_head *item;
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if (!list_empty(&q->active)) {
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buf =
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list_entry(q->active.next, struct cx25821_buffer, vb.queue);
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cx25821_start_video_dma(dev, q, buf, channel);
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list_for_each(item, &q->active) {
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buf = list_entry(item, struct cx25821_buffer, vb.queue);
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buf->count = q->count++;
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}
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mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
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return 0;
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}
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prev = NULL;
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for (;;) {
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if (list_empty(&q->queued))
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return 0;
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buf =
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list_entry(q->queued.next, struct cx25821_buffer, vb.queue);
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if (NULL == prev) {
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list_move_tail(&buf->vb.queue, &q->active);
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cx25821_start_video_dma(dev, q, buf, channel);
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buf->vb.state = VIDEOBUF_ACTIVE;
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buf->count = q->count++;
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mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
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} else if (prev->vb.width == buf->vb.width &&
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prev->vb.height == buf->vb.height &&
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prev->fmt == buf->fmt) {
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list_move_tail(&buf->vb.queue, &q->active);
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buf->vb.state = VIDEOBUF_ACTIVE;
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buf->count = q->count++;
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prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
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prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
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} else {
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return 0;
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}
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prev = buf;
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}
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}
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void cx25821_vid_timeout(unsigned long data)
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{
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struct cx25821_data *timeout_data = (struct cx25821_data *)data;
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struct cx25821_dev *dev = timeout_data->dev;
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struct sram_channel *channel = timeout_data->channel;
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struct cx25821_dmaqueue *q = &dev->vidq[channel->i];
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struct cx25821_buffer *buf;
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unsigned long flags;
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//cx25821_sram_channel_dump(dev, channel);
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cx_clear(channel->dma_ctl, 0x11);
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spin_lock_irqsave(&dev->slock, flags);
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while (!list_empty(&q->active)) {
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buf =
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list_entry(q->active.next, struct cx25821_buffer, vb.queue);
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list_del(&buf->vb.queue);
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buf->vb.state = VIDEOBUF_ERROR;
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wake_up(&buf->vb.done);
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}
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cx25821_restart_video_queue(dev, q, channel);
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spin_unlock_irqrestore(&dev->slock, flags);
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}
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int cx25821_video_irq(struct cx25821_dev *dev, int chan_num, u32 status)
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{
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u32 count = 0;
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int handled = 0;
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u32 mask;
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struct sram_channel *channel = &dev->sram_channels[chan_num];
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mask = cx_read(channel->int_msk);
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if (0 == (status & mask))
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return handled;
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cx_write(channel->int_stat, status);
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/* risc op code error */
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if (status & (1 << 16)) {
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printk(KERN_WARNING "%s, %s: video risc op code error\n",
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dev->name, channel->name);
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cx_clear(channel->dma_ctl, 0x11);
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cx25821_sram_channel_dump(dev, channel);
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}
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/* risc1 y */
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if (status & FLD_VID_DST_RISC1) {
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spin_lock(&dev->slock);
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count = cx_read(channel->gpcnt);
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cx25821_video_wakeup(dev, &dev->vidq[channel->i], count);
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spin_unlock(&dev->slock);
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handled++;
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}
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/* risc2 y */
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if (status & 0x10) {
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dprintk(2, "stopper video\n");
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spin_lock(&dev->slock);
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cx25821_restart_video_queue(dev, &dev->vidq[channel->i],
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channel);
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spin_unlock(&dev->slock);
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handled++;
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}
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return handled;
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}
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void cx25821_videoioctl_unregister(struct cx25821_dev *dev)
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{
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if (dev->ioctl_dev) {
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if (video_is_registered(dev->ioctl_dev))
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video_unregister_device(dev->ioctl_dev);
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else
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video_device_release(dev->ioctl_dev);
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dev->ioctl_dev = NULL;
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}
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}
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void cx25821_video_unregister(struct cx25821_dev *dev, int chan_num)
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{
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cx_clear(PCI_INT_MSK, 1);
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if (dev->video_dev[chan_num]) {
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if (video_is_registered(dev->video_dev[chan_num]))
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video_unregister_device(dev->video_dev[chan_num]);
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else
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video_device_release(dev->video_dev[chan_num]);
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dev->video_dev[chan_num] = NULL;
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btcx_riscmem_free(dev->pci, &dev->vidq[chan_num].stopper);
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printk(KERN_WARNING "device %d released!\n", chan_num);
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}
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}
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int cx25821_video_register(struct cx25821_dev *dev, int chan_num,
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struct video_device *video_template)
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{
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int err;
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spin_lock_init(&dev->slock);
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//printk(KERN_WARNING "Channel %d\n", chan_num);
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#ifdef TUNER_FLAG
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dev->tvnorm = video_template->current_norm;
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#endif
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/* init video dma queues */
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dev->timeout_data[chan_num].dev = dev;
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dev->timeout_data[chan_num].channel = &dev->sram_channels[chan_num];
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INIT_LIST_HEAD(&dev->vidq[chan_num].active);
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INIT_LIST_HEAD(&dev->vidq[chan_num].queued);
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dev->vidq[chan_num].timeout.function = cx25821_vid_timeout;
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dev->vidq[chan_num].timeout.data =
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(unsigned long)&dev->timeout_data[chan_num];
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init_timer(&dev->vidq[chan_num].timeout);
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cx25821_risc_stopper(dev->pci, &dev->vidq[chan_num].stopper,
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dev->sram_channels[chan_num].dma_ctl, 0x11, 0);
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/* register v4l devices */
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dev->video_dev[chan_num] =
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cx25821_vdev_init(dev, dev->pci, video_template, "video");
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err =
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video_register_device(dev->video_dev[chan_num], VFL_TYPE_GRABBER,
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video_nr[dev->nr]);
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if (err < 0) {
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goto fail_unreg;
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}
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//set PCI interrupt
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cx_set(PCI_INT_MSK, 0xff);
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/* initial device configuration */
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mutex_lock(&dev->lock);
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#ifdef TUNER_FLAG
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cx25821_set_tvnorm(dev, dev->tvnorm);
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#endif
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mutex_unlock(&dev->lock);
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init_controls(dev, chan_num);
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|
return 0;
|
|
|
|
fail_unreg:
|
|
cx25821_video_unregister(dev, chan_num);
|
|
return err;
|
|
}
|
|
|
|
int buffer_setup(struct videobuf_queue *q, unsigned int *count,
|
|
unsigned int *size)
|
|
{
|
|
struct cx25821_fh *fh = q->priv_data;
|
|
|
|
*size = fh->fmt->depth * fh->width * fh->height >> 3;
|
|
|
|
if (0 == *count)
|
|
*count = 32;
|
|
|
|
while (*size * *count > vid_limit * 1024 * 1024)
|
|
(*count)--;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
|
|
enum v4l2_field field)
|
|
{
|
|
struct cx25821_fh *fh = q->priv_data;
|
|
struct cx25821_dev *dev = fh->dev;
|
|
struct cx25821_buffer *buf =
|
|
container_of(vb, struct cx25821_buffer, vb);
|
|
int rc, init_buffer = 0;
|
|
u32 line0_offset, line1_offset;
|
|
struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
|
|
int bpl_local = LINE_SIZE_D1;
|
|
int channel_opened = 0;
|
|
|
|
BUG_ON(NULL == fh->fmt);
|
|
if (fh->width < 48 || fh->width > 720 ||
|
|
fh->height < 32 || fh->height > 576)
|
|
return -EINVAL;
|
|
|
|
buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
|
|
|
|
if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
|
|
return -EINVAL;
|
|
|
|
if (buf->fmt != fh->fmt ||
|
|
buf->vb.width != fh->width ||
|
|
buf->vb.height != fh->height || buf->vb.field != field) {
|
|
buf->fmt = fh->fmt;
|
|
buf->vb.width = fh->width;
|
|
buf->vb.height = fh->height;
|
|
buf->vb.field = field;
|
|
init_buffer = 1;
|
|
}
|
|
|
|
if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
|
|
init_buffer = 1;
|
|
rc = videobuf_iolock(q, &buf->vb, NULL);
|
|
if (0 != rc) {
|
|
printk(KERN_DEBUG "videobuf_iolock failed!\n");
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
dprintk(1, "init_buffer=%d\n", init_buffer);
|
|
|
|
if (init_buffer) {
|
|
|
|
channel_opened = dev->channel_opened;
|
|
channel_opened = (channel_opened < 0
|
|
|| channel_opened > 7) ? 7 : channel_opened;
|
|
|
|
if (dev->pixel_formats[channel_opened] == PIXEL_FRMT_411)
|
|
buf->bpl = (buf->fmt->depth * buf->vb.width) >> 3;
|
|
else
|
|
buf->bpl = (buf->fmt->depth >> 3) * (buf->vb.width);
|
|
|
|
if (dev->pixel_formats[channel_opened] == PIXEL_FRMT_411) {
|
|
bpl_local = buf->bpl;
|
|
} else {
|
|
bpl_local = buf->bpl; //Default
|
|
|
|
if (channel_opened >= 0 && channel_opened <= 7) {
|
|
if (dev->use_cif_resolution[channel_opened]) {
|
|
if (dev->tvnorm & V4L2_STD_PAL_BG
|
|
|| dev->tvnorm & V4L2_STD_PAL_DK)
|
|
bpl_local = 352 << 1;
|
|
else
|
|
bpl_local =
|
|
dev->
|
|
cif_width[channel_opened] <<
|
|
1;
|
|
}
|
|
}
|
|
}
|
|
|
|
switch (buf->vb.field) {
|
|
case V4L2_FIELD_TOP:
|
|
cx25821_risc_buffer(dev->pci, &buf->risc,
|
|
dma->sglist, 0, UNSET,
|
|
buf->bpl, 0, buf->vb.height);
|
|
break;
|
|
case V4L2_FIELD_BOTTOM:
|
|
cx25821_risc_buffer(dev->pci, &buf->risc,
|
|
dma->sglist, UNSET, 0,
|
|
buf->bpl, 0, buf->vb.height);
|
|
break;
|
|
case V4L2_FIELD_INTERLACED:
|
|
/* All other formats are top field first */
|
|
line0_offset = 0;
|
|
line1_offset = buf->bpl;
|
|
dprintk(1, "top field first\n");
|
|
|
|
cx25821_risc_buffer(dev->pci, &buf->risc,
|
|
dma->sglist, line0_offset,
|
|
bpl_local, bpl_local, bpl_local,
|
|
buf->vb.height >> 1);
|
|
break;
|
|
case V4L2_FIELD_SEQ_TB:
|
|
cx25821_risc_buffer(dev->pci, &buf->risc,
|
|
dma->sglist,
|
|
0, buf->bpl * (buf->vb.height >> 1),
|
|
buf->bpl, 0, buf->vb.height >> 1);
|
|
break;
|
|
case V4L2_FIELD_SEQ_BT:
|
|
cx25821_risc_buffer(dev->pci, &buf->risc,
|
|
dma->sglist,
|
|
buf->bpl * (buf->vb.height >> 1), 0,
|
|
buf->bpl, 0, buf->vb.height >> 1);
|
|
break;
|
|
default:
|
|
BUG();
|
|
}
|
|
}
|
|
|
|
dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
|
|
buf, buf->vb.i, fh->width, fh->height, fh->fmt->depth,
|
|
fh->fmt->name, (unsigned long)buf->risc.dma);
|
|
|
|
buf->vb.state = VIDEOBUF_PREPARED;
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
cx25821_free_buffer(q, buf);
|
|
return rc;
|
|
}
|
|
|
|
void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
|
|
{
|
|
struct cx25821_buffer *buf =
|
|
container_of(vb, struct cx25821_buffer, vb);
|
|
|
|
cx25821_free_buffer(q, buf);
|
|
}
|
|
|
|
struct videobuf_queue *get_queue(struct cx25821_fh *fh)
|
|
{
|
|
switch (fh->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
return &fh->vidq;
|
|
default:
|
|
BUG();
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
int get_resource(struct cx25821_fh *fh, int resource)
|
|
{
|
|
switch (fh->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
return resource;
|
|
default:
|
|
BUG();
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
int video_mmap(struct file *file, struct vm_area_struct *vma)
|
|
{
|
|
struct cx25821_fh *fh = file->private_data;
|
|
|
|
return videobuf_mmap_mapper(get_queue(fh), vma);
|
|
}
|
|
|
|
/* VIDEO IOCTLS */
|
|
int vidioc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f)
|
|
{
|
|
struct cx25821_fh *fh = priv;
|
|
|
|
f->fmt.pix.width = fh->width;
|
|
f->fmt.pix.height = fh->height;
|
|
f->fmt.pix.field = fh->vidq.field;
|
|
f->fmt.pix.pixelformat = fh->fmt->fourcc;
|
|
f->fmt.pix.bytesperline = (f->fmt.pix.width * fh->fmt->depth) >> 3;
|
|
f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f)
|
|
{
|
|
struct cx25821_fmt *fmt;
|
|
enum v4l2_field field;
|
|
unsigned int maxw, maxh;
|
|
|
|
fmt = format_by_fourcc(f->fmt.pix.pixelformat);
|
|
if (NULL == fmt)
|
|
return -EINVAL;
|
|
|
|
field = f->fmt.pix.field;
|
|
maxw = 720;
|
|
maxh = 576;
|
|
|
|
if (V4L2_FIELD_ANY == field) {
|
|
field = (f->fmt.pix.height > maxh / 2)
|
|
? V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP;
|
|
}
|
|
|
|
switch (field) {
|
|
case V4L2_FIELD_TOP:
|
|
case V4L2_FIELD_BOTTOM:
|
|
maxh = maxh / 2;
|
|
break;
|
|
case V4L2_FIELD_INTERLACED:
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
f->fmt.pix.field = field;
|
|
if (f->fmt.pix.height < 32)
|
|
f->fmt.pix.height = 32;
|
|
if (f->fmt.pix.height > maxh)
|
|
f->fmt.pix.height = maxh;
|
|
if (f->fmt.pix.width < 48)
|
|
f->fmt.pix.width = 48;
|
|
if (f->fmt.pix.width > maxw)
|
|
f->fmt.pix.width = maxw;
|
|
f->fmt.pix.width &= ~0x03;
|
|
f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3;
|
|
f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap)
|
|
{
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
|
|
|
|
strcpy(cap->driver, "cx25821");
|
|
strlcpy(cap->card, cx25821_boards[dev->board].name, sizeof(cap->card));
|
|
sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
|
|
cap->version = CX25821_VERSION_CODE;
|
|
cap->capabilities =
|
|
V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
|
|
if (UNSET != dev->tuner_type)
|
|
cap->capabilities |= V4L2_CAP_TUNER;
|
|
return 0;
|
|
}
|
|
|
|
int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_fmtdesc *f)
|
|
{
|
|
if (unlikely(f->index >= ARRAY_SIZE(formats)))
|
|
return -EINVAL;
|
|
|
|
strlcpy(f->description, formats[f->index].name, sizeof(f->description));
|
|
f->pixelformat = formats[f->index].fourcc;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_VIDEO_V4L1_COMPAT
|
|
int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
|
|
{
|
|
struct cx25821_fh *fh = priv;
|
|
struct videobuf_queue *q;
|
|
struct v4l2_requestbuffers req;
|
|
unsigned int i;
|
|
int err;
|
|
|
|
q = get_queue(fh);
|
|
memset(&req, 0, sizeof(req));
|
|
req.type = q->type;
|
|
req.count = 8;
|
|
req.memory = V4L2_MEMORY_MMAP;
|
|
err = videobuf_reqbufs(q, &req);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
mbuf->frames = req.count;
|
|
mbuf->size = 0;
|
|
for (i = 0; i < mbuf->frames; i++) {
|
|
mbuf->offsets[i] = q->bufs[i]->boff;
|
|
mbuf->size += q->bufs[i]->bsize;
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
int vidioc_reqbufs(struct file *file, void *priv, struct v4l2_requestbuffers *p)
|
|
{
|
|
struct cx25821_fh *fh = priv;
|
|
return videobuf_reqbufs(get_queue(fh), p);
|
|
}
|
|
|
|
int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *p)
|
|
{
|
|
struct cx25821_fh *fh = priv;
|
|
return videobuf_querybuf(get_queue(fh), p);
|
|
}
|
|
|
|
int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
|
|
{
|
|
struct cx25821_fh *fh = priv;
|
|
return videobuf_qbuf(get_queue(fh), p);
|
|
}
|
|
|
|
int vidioc_g_priority(struct file *file, void *f, enum v4l2_priority *p)
|
|
{
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev;
|
|
|
|
*p = v4l2_prio_max(&dev->prio);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int vidioc_s_priority(struct file *file, void *f, enum v4l2_priority prio)
|
|
{
|
|
struct cx25821_fh *fh = f;
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev;
|
|
|
|
return v4l2_prio_change(&dev->prio, &fh->prio, prio);
|
|
}
|
|
|
|
#ifdef TUNER_FLAG
|
|
int vidioc_s_std(struct file *file, void *priv, v4l2_std_id * tvnorms)
|
|
{
|
|
struct cx25821_fh *fh = priv;
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
|
|
int err;
|
|
|
|
dprintk(1, "%s()\n", __func__);
|
|
|
|
if (fh) {
|
|
err = v4l2_prio_check(&dev->prio, &fh->prio);
|
|
if (0 != err)
|
|
return err;
|
|
}
|
|
|
|
if (dev->tvnorm == *tvnorms) {
|
|
return 0;
|
|
}
|
|
|
|
mutex_lock(&dev->lock);
|
|
cx25821_set_tvnorm(dev, *tvnorms);
|
|
mutex_unlock(&dev->lock);
|
|
|
|
medusa_set_videostandard(dev);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
int cx25821_enum_input(struct cx25821_dev *dev, struct v4l2_input *i)
|
|
{
|
|
static const char *iname[] = {
|
|
[CX25821_VMUX_COMPOSITE] = "Composite",
|
|
[CX25821_VMUX_SVIDEO] = "S-Video",
|
|
[CX25821_VMUX_DEBUG] = "for debug only",
|
|
};
|
|
unsigned int n;
|
|
dprintk(1, "%s()\n", __func__);
|
|
|
|
n = i->index;
|
|
if (n > 2)
|
|
return -EINVAL;
|
|
|
|
if (0 == INPUT(n)->type)
|
|
return -EINVAL;
|
|
|
|
memset(i, 0, sizeof(*i));
|
|
i->index = n;
|
|
i->type = V4L2_INPUT_TYPE_CAMERA;
|
|
strcpy(i->name, iname[INPUT(n)->type]);
|
|
|
|
i->std = CX25821_NORMS;
|
|
return 0;
|
|
}
|
|
|
|
int vidioc_enum_input(struct file *file, void *priv, struct v4l2_input *i)
|
|
{
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
|
|
dprintk(1, "%s()\n", __func__);
|
|
return cx25821_enum_input(dev, i);
|
|
}
|
|
|
|
int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
|
|
{
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
|
|
|
|
*i = dev->input;
|
|
dprintk(1, "%s() returns %d\n", __func__, *i);
|
|
return 0;
|
|
}
|
|
|
|
int vidioc_s_input(struct file *file, void *priv, unsigned int i)
|
|
{
|
|
struct cx25821_fh *fh = priv;
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
|
|
int err;
|
|
|
|
dprintk(1, "%s(%d)\n", __func__, i);
|
|
|
|
if (fh) {
|
|
err = v4l2_prio_check(&dev->prio, &fh->prio);
|
|
if (0 != err)
|
|
return err;
|
|
}
|
|
|
|
if (i > 2) {
|
|
dprintk(1, "%s() -EINVAL\n", __func__);
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_lock(&dev->lock);
|
|
cx25821_video_mux(dev, i);
|
|
mutex_unlock(&dev->lock);
|
|
return 0;
|
|
}
|
|
|
|
#ifdef TUNER_FLAG
|
|
int vidioc_g_frequency(struct file *file, void *priv, struct v4l2_frequency *f)
|
|
{
|
|
struct cx25821_fh *fh = priv;
|
|
struct cx25821_dev *dev = fh->dev;
|
|
|
|
f->frequency = dev->freq;
|
|
|
|
cx25821_call_all(dev, tuner, g_frequency, f);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int cx25821_set_freq(struct cx25821_dev *dev, struct v4l2_frequency *f)
|
|
{
|
|
mutex_lock(&dev->lock);
|
|
dev->freq = f->frequency;
|
|
|
|
cx25821_call_all(dev, tuner, s_frequency, f);
|
|
|
|
/* When changing channels it is required to reset TVAUDIO */
|
|
msleep(10);
|
|
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int vidioc_s_frequency(struct file *file, void *priv, struct v4l2_frequency *f)
|
|
{
|
|
struct cx25821_fh *fh = priv;
|
|
struct cx25821_dev *dev = fh->dev;
|
|
int err;
|
|
|
|
if (fh) {
|
|
err = v4l2_prio_check(&dev->prio, &fh->prio);
|
|
if (0 != err)
|
|
return err;
|
|
}
|
|
|
|
return cx25821_set_freq(dev, f);
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
int vidioc_g_register(struct file *file, void *fh,
|
|
struct v4l2_dbg_register *reg)
|
|
{
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev;
|
|
|
|
if (!v4l2_chip_match_host(®->match))
|
|
return -EINVAL;
|
|
|
|
cx25821_call_all(dev, core, g_register, reg);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int vidioc_s_register(struct file *file, void *fh,
|
|
struct v4l2_dbg_register *reg)
|
|
{
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev;
|
|
|
|
if (!v4l2_chip_match_host(®->match))
|
|
return -EINVAL;
|
|
|
|
cx25821_call_all(dev, core, s_register, reg);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif
|
|
|
|
#ifdef TUNER_FLAG
|
|
int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
|
|
{
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
|
|
|
|
if (unlikely(UNSET == dev->tuner_type))
|
|
return -EINVAL;
|
|
if (0 != t->index)
|
|
return -EINVAL;
|
|
|
|
strcpy(t->name, "Television");
|
|
t->type = V4L2_TUNER_ANALOG_TV;
|
|
t->capability = V4L2_TUNER_CAP_NORM;
|
|
t->rangehigh = 0xffffffffUL;
|
|
|
|
t->signal = 0xffff; /* LOCKED */
|
|
return 0;
|
|
}
|
|
|
|
int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
|
|
{
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
|
|
struct cx25821_fh *fh = priv;
|
|
int err;
|
|
|
|
if (fh) {
|
|
err = v4l2_prio_check(&dev->prio, &fh->prio);
|
|
if (0 != err)
|
|
return err;
|
|
}
|
|
|
|
dprintk(1, "%s()\n", __func__);
|
|
if (UNSET == dev->tuner_type)
|
|
return -EINVAL;
|
|
if (0 != t->index)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif
|
|
// ******************************************************************************************
|
|
static const struct v4l2_queryctrl no_ctl = {
|
|
.name = "42",
|
|
.flags = V4L2_CTRL_FLAG_DISABLED,
|
|
};
|
|
|
|
static struct v4l2_queryctrl cx25821_ctls[] = {
|
|
/* --- video --- */
|
|
{
|
|
.id = V4L2_CID_BRIGHTNESS,
|
|
.name = "Brightness",
|
|
.minimum = 0,
|
|
.maximum = 10000,
|
|
.step = 1,
|
|
.default_value = 6200,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
}, {
|
|
.id = V4L2_CID_CONTRAST,
|
|
.name = "Contrast",
|
|
.minimum = 0,
|
|
.maximum = 10000,
|
|
.step = 1,
|
|
.default_value = 5000,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
}, {
|
|
.id = V4L2_CID_SATURATION,
|
|
.name = "Saturation",
|
|
.minimum = 0,
|
|
.maximum = 10000,
|
|
.step = 1,
|
|
.default_value = 5000,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
}, {
|
|
.id = V4L2_CID_HUE,
|
|
.name = "Hue",
|
|
.minimum = 0,
|
|
.maximum = 10000,
|
|
.step = 1,
|
|
.default_value = 5000,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
}
|
|
};
|
|
static const int CX25821_CTLS = ARRAY_SIZE(cx25821_ctls);
|
|
|
|
static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl)
|
|
{
|
|
int i;
|
|
|
|
if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1)
|
|
return -EINVAL;
|
|
for (i = 0; i < CX25821_CTLS; i++)
|
|
if (cx25821_ctls[i].id == qctrl->id)
|
|
break;
|
|
if (i == CX25821_CTLS) {
|
|
*qctrl = no_ctl;
|
|
return 0;
|
|
}
|
|
*qctrl = cx25821_ctls[i];
|
|
return 0;
|
|
}
|
|
|
|
int vidioc_queryctrl(struct file *file, void *priv,
|
|
struct v4l2_queryctrl *qctrl)
|
|
{
|
|
return cx25821_ctrl_query(qctrl);
|
|
}
|
|
|
|
/* ------------------------------------------------------------------ */
|
|
/* VIDEO CTRL IOCTLS */
|
|
|
|
static const struct v4l2_queryctrl *ctrl_by_id(unsigned int id)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < CX25821_CTLS; i++)
|
|
if (cx25821_ctls[i].id == id)
|
|
return cx25821_ctls + i;
|
|
return NULL;
|
|
}
|
|
|
|
int vidioc_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctl)
|
|
{
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
|
|
|
|
const struct v4l2_queryctrl *ctrl;
|
|
|
|
ctrl = ctrl_by_id(ctl->id);
|
|
|
|
if (NULL == ctrl)
|
|
return -EINVAL;
|
|
switch (ctl->id) {
|
|
case V4L2_CID_BRIGHTNESS:
|
|
ctl->value = dev->ctl_bright;
|
|
break;
|
|
case V4L2_CID_HUE:
|
|
ctl->value = dev->ctl_hue;
|
|
break;
|
|
case V4L2_CID_CONTRAST:
|
|
ctl->value = dev->ctl_contrast;
|
|
break;
|
|
case V4L2_CID_SATURATION:
|
|
ctl->value = dev->ctl_saturation;
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int cx25821_set_control(struct cx25821_dev *dev,
|
|
struct v4l2_control *ctl, int chan_num)
|
|
{
|
|
int err;
|
|
const struct v4l2_queryctrl *ctrl;
|
|
|
|
err = -EINVAL;
|
|
|
|
ctrl = ctrl_by_id(ctl->id);
|
|
|
|
if (NULL == ctrl)
|
|
return err;
|
|
|
|
switch (ctrl->type) {
|
|
case V4L2_CTRL_TYPE_BOOLEAN:
|
|
case V4L2_CTRL_TYPE_MENU:
|
|
case V4L2_CTRL_TYPE_INTEGER:
|
|
if (ctl->value < ctrl->minimum)
|
|
ctl->value = ctrl->minimum;
|
|
if (ctl->value > ctrl->maximum)
|
|
ctl->value = ctrl->maximum;
|
|
break;
|
|
default:
|
|
/* nothing */ ;
|
|
};
|
|
|
|
switch (ctl->id) {
|
|
case V4L2_CID_BRIGHTNESS:
|
|
dev->ctl_bright = ctl->value;
|
|
medusa_set_brightness(dev, ctl->value, chan_num);
|
|
break;
|
|
case V4L2_CID_HUE:
|
|
dev->ctl_hue = ctl->value;
|
|
medusa_set_hue(dev, ctl->value, chan_num);
|
|
break;
|
|
case V4L2_CID_CONTRAST:
|
|
dev->ctl_contrast = ctl->value;
|
|
medusa_set_contrast(dev, ctl->value, chan_num);
|
|
break;
|
|
case V4L2_CID_SATURATION:
|
|
dev->ctl_saturation = ctl->value;
|
|
medusa_set_saturation(dev, ctl->value, chan_num);
|
|
break;
|
|
}
|
|
|
|
err = 0;
|
|
|
|
return err;
|
|
}
|
|
|
|
static void init_controls(struct cx25821_dev *dev, int chan_num)
|
|
{
|
|
struct v4l2_control ctrl;
|
|
int i;
|
|
for (i = 0; i < CX25821_CTLS; i++) {
|
|
ctrl.id = cx25821_ctls[i].id;
|
|
ctrl.value = cx25821_ctls[i].default_value;
|
|
|
|
cx25821_set_control(dev, &ctrl, chan_num);
|
|
}
|
|
}
|
|
|
|
int vidioc_cropcap(struct file *file, void *priv, struct v4l2_cropcap *cropcap)
|
|
{
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
|
|
|
|
if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
cropcap->bounds.top = cropcap->bounds.left = 0;
|
|
cropcap->bounds.width = 720;
|
|
cropcap->bounds.height = dev->tvnorm == V4L2_STD_PAL_BG ? 576 : 480;
|
|
cropcap->pixelaspect.numerator =
|
|
dev->tvnorm == V4L2_STD_PAL_BG ? 59 : 10;
|
|
cropcap->pixelaspect.denominator =
|
|
dev->tvnorm == V4L2_STD_PAL_BG ? 54 : 11;
|
|
cropcap->defrect = cropcap->bounds;
|
|
return 0;
|
|
}
|
|
|
|
int vidioc_s_crop(struct file *file, void *priv, struct v4l2_crop *crop)
|
|
{
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
|
|
struct cx25821_fh *fh = priv;
|
|
int err;
|
|
|
|
if (fh) {
|
|
err = v4l2_prio_check(&dev->prio, &fh->prio);
|
|
if (0 != err)
|
|
return err;
|
|
}
|
|
// vidioc_s_crop not supported
|
|
return -EINVAL;
|
|
}
|
|
|
|
int vidioc_g_crop(struct file *file, void *priv, struct v4l2_crop *crop)
|
|
{
|
|
// vidioc_g_crop not supported
|
|
return -EINVAL;
|
|
}
|
|
|
|
int vidioc_querystd(struct file *file, void *priv, v4l2_std_id * norm)
|
|
{
|
|
// medusa does not support video standard sensing of current input
|
|
*norm = CX25821_NORMS;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int is_valid_width(u32 width, v4l2_std_id tvnorm)
|
|
{
|
|
if (tvnorm == V4L2_STD_PAL_BG) {
|
|
if (width == 352 || width == 720)
|
|
return 1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
if (tvnorm == V4L2_STD_NTSC_M) {
|
|
if (width == 320 || width == 352 || width == 720)
|
|
return 1;
|
|
else
|
|
return 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int is_valid_height(u32 height, v4l2_std_id tvnorm)
|
|
{
|
|
if (tvnorm == V4L2_STD_PAL_BG) {
|
|
if (height == 576 || height == 288)
|
|
return 1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
if (tvnorm == V4L2_STD_NTSC_M) {
|
|
if (height == 480 || height == 240)
|
|
return 1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|