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b6f8727e9f
The v4l2 core already has support for debugging ioctls/file operations. No need to do that again. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
1596 lines
40 KiB
C
1596 lines
40 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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* Parts adapted/taken from Eduardo Moscoso Rubino
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* Copyright (C) 2009 Eduardo Moscoso Rubino <moscoso@TopoLogica.com>
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*
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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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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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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("Hiep Huynh <hiep.huynh@conexant.com>");
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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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module_param_array(video_nr, int, NULL, 0444);
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MODULE_PARM_DESC(video_nr, "video 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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static 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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#define FORMAT_FLAGS_PACKED 0x01
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static const 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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static const struct cx25821_fmt *cx25821_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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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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pr_err("%s(0x%08x) NOT FOUND\n", __func__, fourcc);
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return NULL;
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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 = list_entry(q->active.next, struct cx25821_buffer,
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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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v4l2_get_timestamp(&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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pr_err("%s: %d buffers handled (should be 1)\n", __func__, bc);
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}
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static 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",
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__func__, (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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/*
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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 cx25821_res_get(struct cx25821_dev *dev, struct cx25821_fh *fh,
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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->channels[fh->channel_id].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->channels[fh->channel_id].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 cx25821_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 cx25821_res_locked(struct cx25821_fh *fh, unsigned int bit)
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{
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return fh->dev->channels[fh->channel_id].resources & bit;
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}
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void cx25821_res_free(struct cx25821_dev *dev, struct cx25821_fh *fh,
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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->channels[fh->channel_id].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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static 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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const 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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static int cx25821_restart_video_queue(struct cx25821_dev *dev,
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struct cx25821_dmaqueue *q,
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const 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 = list_entry(q->active.next, struct cx25821_buffer,
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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 = list_entry(q->queued.next, struct cx25821_buffer,
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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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static 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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const struct sram_channel *channel = timeout_data->channel;
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struct cx25821_dmaqueue *q = &dev->channels[channel->i].vidq;
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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 = list_entry(q->active.next, struct cx25821_buffer,
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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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const struct sram_channel *channel = dev->channels[chan_num].sram_channels;
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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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pr_warn("%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->channels[channel->i].vidq,
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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,
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&dev->channels[channel->i].vidq, 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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static int cx25821_buffer_setup(struct videobuf_queue *q, unsigned int *count,
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unsigned int *size)
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{
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struct cx25821_fh *fh = q->priv_data;
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*size = fh->fmt->depth * fh->width * fh->height >> 3;
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if (0 == *count)
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*count = 32;
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if (*size * *count > vid_limit * 1024 * 1024)
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*count = (vid_limit * 1024 * 1024) / *size;
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return 0;
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}
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static int cx25821_buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
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enum v4l2_field field)
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{
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struct cx25821_fh *fh = q->priv_data;
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struct cx25821_dev *dev = fh->dev;
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struct cx25821_buffer *buf =
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container_of(vb, struct cx25821_buffer, vb);
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int rc, init_buffer = 0;
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u32 line0_offset;
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struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
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int bpl_local = LINE_SIZE_D1;
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int channel_opened = fh->channel_id;
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BUG_ON(NULL == fh->fmt);
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if (fh->width < 48 || fh->width > 720 ||
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fh->height < 32 || fh->height > 576)
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return -EINVAL;
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buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
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if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
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return -EINVAL;
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if (buf->fmt != fh->fmt ||
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buf->vb.width != fh->width ||
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buf->vb.height != fh->height || buf->vb.field != field) {
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buf->fmt = fh->fmt;
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buf->vb.width = fh->width;
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buf->vb.height = fh->height;
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buf->vb.field = field;
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init_buffer = 1;
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}
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if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
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init_buffer = 1;
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rc = videobuf_iolock(q, &buf->vb, NULL);
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if (0 != rc) {
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printk(KERN_DEBUG pr_fmt("videobuf_iolock failed!\n"));
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goto fail;
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}
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}
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dprintk(1, "init_buffer=%d\n", init_buffer);
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if (init_buffer) {
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channel_opened = dev->channel_opened;
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if (channel_opened < 0 || channel_opened > 7)
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channel_opened = 7;
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if (dev->channels[channel_opened].pixel_formats ==
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PIXEL_FRMT_411)
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buf->bpl = (buf->fmt->depth * buf->vb.width) >> 3;
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else
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buf->bpl = (buf->fmt->depth >> 3) * (buf->vb.width);
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if (dev->channels[channel_opened].pixel_formats ==
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PIXEL_FRMT_411) {
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bpl_local = buf->bpl;
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} else {
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bpl_local = buf->bpl; /* Default */
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if (channel_opened >= 0 && channel_opened <= 7) {
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if (dev->channels[channel_opened]
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.use_cif_resolution) {
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if (dev->tvnorm & V4L2_STD_PAL_BG ||
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dev->tvnorm & V4L2_STD_PAL_DK)
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bpl_local = 352 << 1;
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else
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bpl_local = dev->channels[
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channel_opened].
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cif_width << 1;
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}
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}
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}
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switch (buf->vb.field) {
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case V4L2_FIELD_TOP:
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cx25821_risc_buffer(dev->pci, &buf->risc,
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dma->sglist, 0, UNSET,
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buf->bpl, 0, buf->vb.height);
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break;
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case V4L2_FIELD_BOTTOM:
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cx25821_risc_buffer(dev->pci, &buf->risc,
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dma->sglist, UNSET, 0,
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buf->bpl, 0, buf->vb.height);
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break;
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case V4L2_FIELD_INTERLACED:
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/* All other formats are top field first */
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line0_offset = 0;
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dprintk(1, "top field first\n");
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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;
|
|
}
|
|
|
|
static void cx25821_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);
|
|
}
|
|
|
|
static 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;
|
|
}
|
|
}
|
|
|
|
static int cx25821_get_resource(struct cx25821_fh *fh, int resource)
|
|
{
|
|
switch (fh->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
return resource;
|
|
default:
|
|
BUG();
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static int cx25821_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);
|
|
}
|
|
|
|
|
|
static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
|
|
{
|
|
struct cx25821_buffer *buf =
|
|
container_of(vb, struct cx25821_buffer, vb);
|
|
struct cx25821_buffer *prev;
|
|
struct cx25821_fh *fh = vq->priv_data;
|
|
struct cx25821_dev *dev = fh->dev;
|
|
struct cx25821_dmaqueue *q = &dev->channels[fh->channel_id].vidq;
|
|
|
|
/* add jump to stopper */
|
|
buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
|
|
buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
|
|
buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
|
|
|
|
dprintk(2, "jmp to stopper (0x%x)\n", buf->risc.jmp[1]);
|
|
|
|
if (!list_empty(&q->queued)) {
|
|
list_add_tail(&buf->vb.queue, &q->queued);
|
|
buf->vb.state = VIDEOBUF_QUEUED;
|
|
dprintk(2, "[%p/%d] buffer_queue - append to queued\n", buf,
|
|
buf->vb.i);
|
|
|
|
} else if (list_empty(&q->active)) {
|
|
list_add_tail(&buf->vb.queue, &q->active);
|
|
cx25821_start_video_dma(dev, q, buf,
|
|
dev->channels[fh->channel_id].sram_channels);
|
|
buf->vb.state = VIDEOBUF_ACTIVE;
|
|
buf->count = q->count++;
|
|
mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
|
|
dprintk(2, "[%p/%d] buffer_queue - first active, buf cnt = %d, q->count = %d\n",
|
|
buf, buf->vb.i, buf->count, q->count);
|
|
} else {
|
|
prev = list_entry(q->active.prev, struct cx25821_buffer,
|
|
vb.queue);
|
|
if (prev->vb.width == buf->vb.width
|
|
&& prev->vb.height == buf->vb.height
|
|
&& prev->fmt == buf->fmt) {
|
|
list_add_tail(&buf->vb.queue, &q->active);
|
|
buf->vb.state = VIDEOBUF_ACTIVE;
|
|
buf->count = q->count++;
|
|
prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
|
|
|
|
/* 64 bit bits 63-32 */
|
|
prev->risc.jmp[2] = cpu_to_le32(0);
|
|
dprintk(2, "[%p/%d] buffer_queue - append to active, buf->count=%d\n",
|
|
buf, buf->vb.i, buf->count);
|
|
|
|
} else {
|
|
list_add_tail(&buf->vb.queue, &q->queued);
|
|
buf->vb.state = VIDEOBUF_QUEUED;
|
|
dprintk(2, "[%p/%d] buffer_queue - first queued\n", buf,
|
|
buf->vb.i);
|
|
}
|
|
}
|
|
|
|
if (list_empty(&q->active))
|
|
dprintk(2, "active queue empty!\n");
|
|
}
|
|
|
|
static struct videobuf_queue_ops cx25821_video_qops = {
|
|
.buf_setup = cx25821_buffer_setup,
|
|
.buf_prepare = cx25821_buffer_prepare,
|
|
.buf_queue = buffer_queue,
|
|
.buf_release = cx25821_buffer_release,
|
|
};
|
|
|
|
static int video_open(struct file *file)
|
|
{
|
|
struct video_device *vdev = video_devdata(file);
|
|
struct cx25821_dev *dev = video_drvdata(file);
|
|
struct cx25821_fh *fh;
|
|
enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
u32 pix_format;
|
|
int ch_id;
|
|
|
|
for (ch_id = 0; ch_id < MAX_VID_CHANNEL_NUM - 1; ch_id++)
|
|
if (&dev->channels[ch_id].vdev == vdev)
|
|
break;
|
|
|
|
/* Can't happen */
|
|
if (ch_id >= MAX_VID_CHANNEL_NUM - 1)
|
|
return -ENODEV;
|
|
|
|
/* allocate + initialize per filehandle data */
|
|
fh = kzalloc(sizeof(*fh), GFP_KERNEL);
|
|
if (NULL == fh)
|
|
return -ENOMEM;
|
|
|
|
file->private_data = fh;
|
|
fh->dev = dev;
|
|
fh->type = type;
|
|
fh->width = 720;
|
|
fh->channel_id = ch_id;
|
|
|
|
if (dev->tvnorm & V4L2_STD_PAL_BG || dev->tvnorm & V4L2_STD_PAL_DK)
|
|
fh->height = 576;
|
|
else
|
|
fh->height = 480;
|
|
|
|
dev->channel_opened = fh->channel_id;
|
|
if (dev->channels[ch_id].pixel_formats == PIXEL_FRMT_411)
|
|
pix_format = V4L2_PIX_FMT_Y41P;
|
|
else
|
|
pix_format = V4L2_PIX_FMT_YUYV;
|
|
fh->fmt = cx25821_format_by_fourcc(pix_format);
|
|
|
|
v4l2_prio_open(&dev->channels[ch_id].prio, &fh->prio);
|
|
|
|
videobuf_queue_sg_init(&fh->vidq, &cx25821_video_qops, &dev->pci->dev,
|
|
&dev->slock, V4L2_BUF_TYPE_VIDEO_CAPTURE,
|
|
V4L2_FIELD_INTERLACED, sizeof(struct cx25821_buffer),
|
|
fh, NULL);
|
|
|
|
dprintk(1, "post videobuf_queue_init()\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t video_read(struct file *file, char __user * data, size_t count,
|
|
loff_t *ppos)
|
|
{
|
|
struct cx25821_fh *fh = file->private_data;
|
|
|
|
switch (fh->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
if (cx25821_res_locked(fh, RESOURCE_VIDEO0))
|
|
return -EBUSY;
|
|
|
|
return videobuf_read_one(&fh->vidq, data, count, ppos,
|
|
file->f_flags & O_NONBLOCK);
|
|
|
|
default:
|
|
BUG();
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static unsigned int video_poll(struct file *file,
|
|
struct poll_table_struct *wait)
|
|
{
|
|
struct cx25821_fh *fh = file->private_data;
|
|
struct cx25821_buffer *buf;
|
|
|
|
if (cx25821_res_check(fh, RESOURCE_VIDEO0)) {
|
|
/* streaming capture */
|
|
if (list_empty(&fh->vidq.stream))
|
|
return POLLERR;
|
|
buf = list_entry(fh->vidq.stream.next,
|
|
struct cx25821_buffer, vb.stream);
|
|
} else {
|
|
/* read() capture */
|
|
buf = (struct cx25821_buffer *)fh->vidq.read_buf;
|
|
if (NULL == buf)
|
|
return POLLERR;
|
|
}
|
|
|
|
poll_wait(file, &buf->vb.done, wait);
|
|
if (buf->vb.state == VIDEOBUF_DONE || buf->vb.state == VIDEOBUF_ERROR) {
|
|
if (buf->vb.state == VIDEOBUF_DONE) {
|
|
struct cx25821_dev *dev = fh->dev;
|
|
|
|
if (dev && dev->channels[fh->channel_id]
|
|
.use_cif_resolution) {
|
|
u8 cam_id = *((char *)buf->vb.baddr + 3);
|
|
memcpy((char *)buf->vb.baddr,
|
|
(char *)buf->vb.baddr + (fh->width * 2),
|
|
(fh->width * 2));
|
|
*((char *)buf->vb.baddr + 3) = cam_id;
|
|
}
|
|
}
|
|
|
|
return POLLIN | POLLRDNORM;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int video_release(struct file *file)
|
|
{
|
|
struct cx25821_fh *fh = file->private_data;
|
|
struct cx25821_dev *dev = fh->dev;
|
|
const struct sram_channel *sram_ch =
|
|
dev->channels[0].sram_channels;
|
|
|
|
/* stop the risc engine and fifo */
|
|
cx_write(sram_ch->dma_ctl, 0); /* FIFO and RISC disable */
|
|
|
|
/* stop video capture */
|
|
if (cx25821_res_check(fh, RESOURCE_VIDEO0)) {
|
|
videobuf_queue_cancel(&fh->vidq);
|
|
cx25821_res_free(dev, fh, RESOURCE_VIDEO0);
|
|
}
|
|
|
|
if (fh->vidq.read_buf) {
|
|
cx25821_buffer_release(&fh->vidq, fh->vidq.read_buf);
|
|
kfree(fh->vidq.read_buf);
|
|
}
|
|
|
|
videobuf_mmap_free(&fh->vidq);
|
|
|
|
v4l2_prio_close(&dev->channels[fh->channel_id].prio, fh->prio);
|
|
file->private_data = NULL;
|
|
kfree(fh);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* VIDEO IOCTLS */
|
|
static int cx25821_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;
|
|
}
|
|
|
|
static int cx25821_vidioc_try_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
const struct cx25821_fmt *fmt;
|
|
enum v4l2_field field;
|
|
unsigned int maxw, maxh;
|
|
|
|
fmt = cx25821_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) {
|
|
if (f->fmt.pix.height > maxh / 2)
|
|
field = V4L2_FIELD_INTERLACED;
|
|
else
|
|
field = 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;
|
|
}
|
|
static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
|
|
{
|
|
struct cx25821_fh *fh = priv;
|
|
struct cx25821_dev *dev = fh->dev;
|
|
|
|
if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
|
|
return -EINVAL;
|
|
|
|
if (unlikely(i != fh->type))
|
|
return -EINVAL;
|
|
|
|
if (unlikely(!cx25821_res_get(dev, fh, cx25821_get_resource(fh,
|
|
RESOURCE_VIDEO0))))
|
|
return -EBUSY;
|
|
|
|
return videobuf_streamon(get_queue(fh));
|
|
}
|
|
|
|
static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
|
|
{
|
|
struct cx25821_fh *fh = priv;
|
|
struct cx25821_dev *dev = fh->dev;
|
|
int err, res;
|
|
|
|
if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
if (i != fh->type)
|
|
return -EINVAL;
|
|
|
|
res = cx25821_get_resource(fh, RESOURCE_VIDEO0);
|
|
err = videobuf_streamoff(get_queue(fh));
|
|
if (err < 0)
|
|
return err;
|
|
cx25821_res_free(dev, fh, res);
|
|
return 0;
|
|
}
|
|
|
|
static int cx25821_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;
|
|
}
|
|
|
|
static int cx25821_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;
|
|
}
|
|
|
|
static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct cx25821_fh *fh = priv;
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
|
|
struct v4l2_mbus_framefmt mbus_fmt;
|
|
int err;
|
|
int pix_format = PIXEL_FRMT_422;
|
|
|
|
if (fh) {
|
|
err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
|
|
fh->prio);
|
|
if (0 != err)
|
|
return err;
|
|
}
|
|
|
|
err = cx25821_vidioc_try_fmt_vid_cap(file, priv, f);
|
|
|
|
if (0 != err)
|
|
return err;
|
|
|
|
fh->fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
|
|
fh->vidq.field = f->fmt.pix.field;
|
|
|
|
/* check if width and height is valid based on set standard */
|
|
if (cx25821_is_valid_width(f->fmt.pix.width, dev->tvnorm))
|
|
fh->width = f->fmt.pix.width;
|
|
|
|
if (cx25821_is_valid_height(f->fmt.pix.height, dev->tvnorm))
|
|
fh->height = f->fmt.pix.height;
|
|
|
|
if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_Y41P)
|
|
pix_format = PIXEL_FRMT_411;
|
|
else if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV)
|
|
pix_format = PIXEL_FRMT_422;
|
|
else
|
|
return -EINVAL;
|
|
|
|
cx25821_set_pixel_format(dev, SRAM_CH00, pix_format);
|
|
|
|
/* check if cif resolution */
|
|
if (fh->width == 320 || fh->width == 352)
|
|
dev->channels[fh->channel_id].use_cif_resolution = 1;
|
|
else
|
|
dev->channels[fh->channel_id].use_cif_resolution = 0;
|
|
|
|
dev->channels[fh->channel_id].cif_width = fh->width;
|
|
medusa_set_resolution(dev, fh->width, SRAM_CH00);
|
|
|
|
v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
|
|
cx25821_call_all(dev, video, s_mbus_fmt, &mbus_fmt);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
|
|
{
|
|
int ret_val = 0;
|
|
struct cx25821_fh *fh = priv;
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
|
|
|
|
ret_val = videobuf_dqbuf(get_queue(fh), p, file->f_flags & O_NONBLOCK);
|
|
|
|
p->sequence = dev->channels[fh->channel_id].vidq.count;
|
|
|
|
return ret_val;
|
|
}
|
|
|
|
static int vidioc_log_status(struct file *file, void *priv)
|
|
{
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
|
|
struct cx25821_fh *fh = priv;
|
|
const struct sram_channel *sram_ch =
|
|
dev->channels[fh->channel_id].sram_channels;
|
|
u32 tmp = 0;
|
|
|
|
cx25821_call_all(dev, core, log_status);
|
|
tmp = cx_read(sram_ch->dma_ctl);
|
|
pr_info("Video input 0 is %s\n",
|
|
(tmp & 0x11) ? "streaming" : "stopped");
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int cx25821_vidioc_querycap(struct file *file, void *priv,
|
|
struct v4l2_capability *cap)
|
|
{
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
|
|
struct cx25821_fh *fh = priv;
|
|
const u32 cap_input = V4L2_CAP_VIDEO_CAPTURE |
|
|
V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
|
|
const u32 cap_output = V4L2_CAP_VIDEO_OUTPUT;
|
|
|
|
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));
|
|
if (fh->channel_id >= VID_CHANNEL_NUM)
|
|
cap->device_caps = cap_output;
|
|
else
|
|
cap->device_caps = cap_input;
|
|
cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
|
|
return 0;
|
|
}
|
|
|
|
static int cx25821_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;
|
|
}
|
|
|
|
static int cx25821_vidioc_reqbufs(struct file *file, void *priv,
|
|
struct v4l2_requestbuffers *p)
|
|
{
|
|
struct cx25821_fh *fh = priv;
|
|
return videobuf_reqbufs(get_queue(fh), p);
|
|
}
|
|
|
|
static int cx25821_vidioc_querybuf(struct file *file, void *priv,
|
|
struct v4l2_buffer *p)
|
|
{
|
|
struct cx25821_fh *fh = priv;
|
|
return videobuf_querybuf(get_queue(fh), p);
|
|
}
|
|
|
|
static int cx25821_vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
|
|
{
|
|
struct cx25821_fh *fh = priv;
|
|
return videobuf_qbuf(get_queue(fh), p);
|
|
}
|
|
|
|
static int cx25821_vidioc_g_priority(struct file *file, void *f, enum v4l2_priority *p)
|
|
{
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev;
|
|
struct cx25821_fh *fh = f;
|
|
|
|
*p = v4l2_prio_max(&dev->channels[fh->channel_id].prio);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cx25821_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->channels[fh->channel_id].prio, &fh->prio,
|
|
prio);
|
|
}
|
|
|
|
static int cx25821_vidioc_g_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
|
|
{
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
|
|
|
|
*tvnorms = dev->tvnorm;
|
|
return 0;
|
|
}
|
|
|
|
int cx25821_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;
|
|
|
|
if (fh) {
|
|
err = v4l2_prio_check(&dev->channels[fh->channel_id].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;
|
|
}
|
|
|
|
static int cx25821_vidioc_enum_input(struct file *file, void *priv,
|
|
struct v4l2_input *i)
|
|
{
|
|
static const char * const iname[] = {
|
|
[CX25821_VMUX_COMPOSITE] = "Composite",
|
|
[CX25821_VMUX_SVIDEO] = "S-Video",
|
|
[CX25821_VMUX_DEBUG] = "for debug only",
|
|
};
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
|
|
unsigned int n;
|
|
|
|
n = i->index;
|
|
if (n >= CX25821_NR_INPUT)
|
|
return -EINVAL;
|
|
|
|
if (0 == INPUT(n)->type)
|
|
return -EINVAL;
|
|
|
|
i->type = V4L2_INPUT_TYPE_CAMERA;
|
|
strcpy(i->name, iname[INPUT(n)->type]);
|
|
|
|
i->std = CX25821_NORMS;
|
|
return 0;
|
|
}
|
|
|
|
static int cx25821_vidioc_g_input(struct file *file, void *priv, unsigned int *i)
|
|
{
|
|
struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
|
|
|
|
*i = dev->input;
|
|
return 0;
|
|
}
|
|
|
|
static int cx25821_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;
|
|
|
|
if (fh) {
|
|
err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
|
|
fh->prio);
|
|
if (0 != err)
|
|
return err;
|
|
}
|
|
|
|
if (i >= CX25821_NR_INPUT || INPUT(i)->type == 0)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&dev->lock);
|
|
cx25821_video_mux(dev, i);
|
|
mutex_unlock(&dev->lock);
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
int cx25821_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 cx25821_vidioc_s_register(struct file *file, void *fh,
|
|
const 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
|
|
|
|
static int cx25821_s_ctrl(struct v4l2_ctrl *ctrl)
|
|
{
|
|
struct cx25821_channel *chan =
|
|
container_of(ctrl->handler, struct cx25821_channel, hdl);
|
|
struct cx25821_dev *dev = chan->dev;
|
|
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_BRIGHTNESS:
|
|
medusa_set_brightness(dev, ctrl->val, chan->id);
|
|
break;
|
|
case V4L2_CID_HUE:
|
|
medusa_set_hue(dev, ctrl->val, chan->id);
|
|
break;
|
|
case V4L2_CID_CONTRAST:
|
|
medusa_set_contrast(dev, ctrl->val, chan->id);
|
|
break;
|
|
case V4L2_CID_SATURATION:
|
|
medusa_set_saturation(dev, ctrl->val, chan->id);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static long video_ioctl_upstream9(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
struct cx25821_fh *fh = file->private_data;
|
|
struct cx25821_dev *dev = fh->dev;
|
|
int command = 0;
|
|
struct upstream_user_struct *data_from_user;
|
|
|
|
data_from_user = (struct upstream_user_struct *)arg;
|
|
|
|
if (!data_from_user) {
|
|
pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
|
|
return 0;
|
|
}
|
|
|
|
command = data_from_user->command;
|
|
|
|
if (command != UPSTREAM_START_VIDEO && command != UPSTREAM_STOP_VIDEO)
|
|
return 0;
|
|
|
|
dev->input_filename = data_from_user->input_filename;
|
|
dev->input_audiofilename = data_from_user->input_filename;
|
|
dev->vid_stdname = data_from_user->vid_stdname;
|
|
dev->pixel_format = data_from_user->pixel_format;
|
|
dev->channel_select = data_from_user->channel_select;
|
|
dev->command = data_from_user->command;
|
|
|
|
switch (command) {
|
|
case UPSTREAM_START_VIDEO:
|
|
cx25821_start_upstream_video_ch1(dev, data_from_user);
|
|
break;
|
|
|
|
case UPSTREAM_STOP_VIDEO:
|
|
cx25821_stop_upstream_video_ch1(dev);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static long video_ioctl_upstream10(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
struct cx25821_fh *fh = file->private_data;
|
|
struct cx25821_dev *dev = fh->dev;
|
|
int command = 0;
|
|
struct upstream_user_struct *data_from_user;
|
|
|
|
data_from_user = (struct upstream_user_struct *)arg;
|
|
|
|
if (!data_from_user) {
|
|
pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
|
|
return 0;
|
|
}
|
|
|
|
command = data_from_user->command;
|
|
|
|
if (command != UPSTREAM_START_VIDEO && command != UPSTREAM_STOP_VIDEO)
|
|
return 0;
|
|
|
|
dev->input_filename_ch2 = data_from_user->input_filename;
|
|
dev->input_audiofilename = data_from_user->input_filename;
|
|
dev->vid_stdname_ch2 = data_from_user->vid_stdname;
|
|
dev->pixel_format_ch2 = data_from_user->pixel_format;
|
|
dev->channel_select_ch2 = data_from_user->channel_select;
|
|
dev->command_ch2 = data_from_user->command;
|
|
|
|
switch (command) {
|
|
case UPSTREAM_START_VIDEO:
|
|
cx25821_start_upstream_video_ch2(dev, data_from_user);
|
|
break;
|
|
|
|
case UPSTREAM_STOP_VIDEO:
|
|
cx25821_stop_upstream_video_ch2(dev);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static long video_ioctl_upstream11(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
struct cx25821_fh *fh = file->private_data;
|
|
struct cx25821_dev *dev = fh->dev;
|
|
int command = 0;
|
|
struct upstream_user_struct *data_from_user;
|
|
|
|
data_from_user = (struct upstream_user_struct *)arg;
|
|
|
|
if (!data_from_user) {
|
|
pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
|
|
return 0;
|
|
}
|
|
|
|
command = data_from_user->command;
|
|
|
|
if (command != UPSTREAM_START_AUDIO && command != UPSTREAM_STOP_AUDIO)
|
|
return 0;
|
|
|
|
dev->input_filename = data_from_user->input_filename;
|
|
dev->input_audiofilename = data_from_user->input_filename;
|
|
dev->vid_stdname = data_from_user->vid_stdname;
|
|
dev->pixel_format = data_from_user->pixel_format;
|
|
dev->channel_select = data_from_user->channel_select;
|
|
dev->command = data_from_user->command;
|
|
|
|
switch (command) {
|
|
case UPSTREAM_START_AUDIO:
|
|
cx25821_start_upstream_audio(dev, data_from_user);
|
|
break;
|
|
|
|
case UPSTREAM_STOP_AUDIO:
|
|
cx25821_stop_upstream_audio(dev);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static long video_ioctl_set(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
struct cx25821_fh *fh = file->private_data;
|
|
struct cx25821_dev *dev = fh->dev;
|
|
struct downstream_user_struct *data_from_user;
|
|
int command;
|
|
int width = 720;
|
|
int selected_channel = 0;
|
|
int pix_format = 0;
|
|
int i = 0;
|
|
int cif_enable = 0;
|
|
int cif_width = 0;
|
|
|
|
data_from_user = (struct downstream_user_struct *)arg;
|
|
|
|
if (!data_from_user) {
|
|
pr_err("%s(): User data is INVALID. Returning\n", __func__);
|
|
return 0;
|
|
}
|
|
|
|
command = data_from_user->command;
|
|
|
|
if (command != SET_VIDEO_STD && command != SET_PIXEL_FORMAT
|
|
&& command != ENABLE_CIF_RESOLUTION && command != REG_READ
|
|
&& command != REG_WRITE && command != MEDUSA_READ
|
|
&& command != MEDUSA_WRITE) {
|
|
return 0;
|
|
}
|
|
|
|
switch (command) {
|
|
case SET_VIDEO_STD:
|
|
if (!strcmp(data_from_user->vid_stdname, "PAL"))
|
|
dev->tvnorm = V4L2_STD_PAL_BG;
|
|
else
|
|
dev->tvnorm = V4L2_STD_NTSC_M;
|
|
medusa_set_videostandard(dev);
|
|
break;
|
|
|
|
case SET_PIXEL_FORMAT:
|
|
selected_channel = data_from_user->decoder_select;
|
|
pix_format = data_from_user->pixel_format;
|
|
|
|
if (!(selected_channel <= 7 && selected_channel >= 0)) {
|
|
selected_channel -= 4;
|
|
selected_channel = selected_channel % 8;
|
|
}
|
|
|
|
if (selected_channel >= 0)
|
|
cx25821_set_pixel_format(dev, selected_channel,
|
|
pix_format);
|
|
|
|
break;
|
|
|
|
case ENABLE_CIF_RESOLUTION:
|
|
selected_channel = data_from_user->decoder_select;
|
|
cif_enable = data_from_user->cif_resolution_enable;
|
|
cif_width = data_from_user->cif_width;
|
|
|
|
if (cif_enable) {
|
|
if (dev->tvnorm & V4L2_STD_PAL_BG
|
|
|| dev->tvnorm & V4L2_STD_PAL_DK) {
|
|
width = 352;
|
|
} else {
|
|
width = cif_width;
|
|
if (cif_width != 320 && cif_width != 352)
|
|
width = 320;
|
|
}
|
|
}
|
|
|
|
if (!(selected_channel <= 7 && selected_channel >= 0)) {
|
|
selected_channel -= 4;
|
|
selected_channel = selected_channel % 8;
|
|
}
|
|
|
|
if (selected_channel <= 7 && selected_channel >= 0) {
|
|
dev->channels[selected_channel].use_cif_resolution =
|
|
cif_enable;
|
|
dev->channels[selected_channel].cif_width = width;
|
|
} else {
|
|
for (i = 0; i < VID_CHANNEL_NUM; i++) {
|
|
dev->channels[i].use_cif_resolution =
|
|
cif_enable;
|
|
dev->channels[i].cif_width = width;
|
|
}
|
|
}
|
|
|
|
medusa_set_resolution(dev, width, selected_channel);
|
|
break;
|
|
case REG_READ:
|
|
data_from_user->reg_data = cx_read(data_from_user->reg_address);
|
|
break;
|
|
case REG_WRITE:
|
|
cx_write(data_from_user->reg_address, data_from_user->reg_data);
|
|
break;
|
|
case MEDUSA_READ:
|
|
cx25821_i2c_read(&dev->i2c_bus[0],
|
|
(u16) data_from_user->reg_address,
|
|
&data_from_user->reg_data);
|
|
break;
|
|
case MEDUSA_WRITE:
|
|
cx25821_i2c_write(&dev->i2c_bus[0],
|
|
(u16) data_from_user->reg_address,
|
|
data_from_user->reg_data);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static long cx25821_video_ioctl(struct file *file,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
int ret = 0;
|
|
|
|
struct cx25821_fh *fh = file->private_data;
|
|
|
|
/* check to see if it's the video upstream */
|
|
if (fh->channel_id == SRAM_CH09) {
|
|
ret = video_ioctl_upstream9(file, cmd, arg);
|
|
return ret;
|
|
} else if (fh->channel_id == SRAM_CH10) {
|
|
ret = video_ioctl_upstream10(file, cmd, arg);
|
|
return ret;
|
|
} else if (fh->channel_id == SRAM_CH11) {
|
|
ret = video_ioctl_upstream11(file, cmd, arg);
|
|
ret = video_ioctl_set(file, cmd, arg);
|
|
return ret;
|
|
}
|
|
|
|
return video_ioctl2(file, cmd, arg);
|
|
}
|
|
|
|
static const struct v4l2_ctrl_ops cx25821_ctrl_ops = {
|
|
.s_ctrl = cx25821_s_ctrl,
|
|
};
|
|
|
|
static const struct v4l2_file_operations video_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = video_open,
|
|
.release = video_release,
|
|
.read = video_read,
|
|
.poll = video_poll,
|
|
.mmap = cx25821_video_mmap,
|
|
.ioctl = cx25821_video_ioctl,
|
|
};
|
|
|
|
static const struct v4l2_ioctl_ops video_ioctl_ops = {
|
|
.vidioc_querycap = cx25821_vidioc_querycap,
|
|
.vidioc_enum_fmt_vid_cap = cx25821_vidioc_enum_fmt_vid_cap,
|
|
.vidioc_g_fmt_vid_cap = cx25821_vidioc_g_fmt_vid_cap,
|
|
.vidioc_try_fmt_vid_cap = cx25821_vidioc_try_fmt_vid_cap,
|
|
.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
|
|
.vidioc_reqbufs = cx25821_vidioc_reqbufs,
|
|
.vidioc_querybuf = cx25821_vidioc_querybuf,
|
|
.vidioc_qbuf = cx25821_vidioc_qbuf,
|
|
.vidioc_dqbuf = vidioc_dqbuf,
|
|
.vidioc_g_std = cx25821_vidioc_g_std,
|
|
.vidioc_s_std = cx25821_vidioc_s_std,
|
|
.vidioc_enum_input = cx25821_vidioc_enum_input,
|
|
.vidioc_g_input = cx25821_vidioc_g_input,
|
|
.vidioc_s_input = cx25821_vidioc_s_input,
|
|
.vidioc_streamon = vidioc_streamon,
|
|
.vidioc_streamoff = vidioc_streamoff,
|
|
.vidioc_log_status = vidioc_log_status,
|
|
.vidioc_g_priority = cx25821_vidioc_g_priority,
|
|
.vidioc_s_priority = cx25821_vidioc_s_priority,
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
.vidioc_g_register = cx25821_vidioc_g_register,
|
|
.vidioc_s_register = cx25821_vidioc_s_register,
|
|
#endif
|
|
};
|
|
|
|
static const struct video_device cx25821_video_device = {
|
|
.name = "cx25821-video",
|
|
.fops = &video_fops,
|
|
.release = video_device_release_empty,
|
|
.minor = -1,
|
|
.ioctl_ops = &video_ioctl_ops,
|
|
.tvnorms = CX25821_NORMS,
|
|
};
|
|
|
|
void cx25821_video_unregister(struct cx25821_dev *dev, int chan_num)
|
|
{
|
|
cx_clear(PCI_INT_MSK, 1);
|
|
|
|
if (video_is_registered(&dev->channels[chan_num].vdev)) {
|
|
video_unregister_device(&dev->channels[chan_num].vdev);
|
|
v4l2_ctrl_handler_free(&dev->channels[chan_num].hdl);
|
|
|
|
btcx_riscmem_free(dev->pci,
|
|
&dev->channels[chan_num].vidq.stopper);
|
|
}
|
|
}
|
|
|
|
int cx25821_video_register(struct cx25821_dev *dev)
|
|
{
|
|
int err;
|
|
int i;
|
|
|
|
spin_lock_init(&dev->slock);
|
|
|
|
for (i = 0; i < VID_CHANNEL_NUM; ++i) {
|
|
struct video_device *vdev = &dev->channels[i].vdev;
|
|
struct v4l2_ctrl_handler *hdl = &dev->channels[i].hdl;
|
|
|
|
if (i == SRAM_CH08) /* audio channel */
|
|
continue;
|
|
|
|
v4l2_ctrl_handler_init(hdl, 4);
|
|
v4l2_ctrl_new_std(hdl, &cx25821_ctrl_ops,
|
|
V4L2_CID_BRIGHTNESS, 0, 10000, 1, 6200);
|
|
v4l2_ctrl_new_std(hdl, &cx25821_ctrl_ops,
|
|
V4L2_CID_CONTRAST, 0, 10000, 1, 5000);
|
|
v4l2_ctrl_new_std(hdl, &cx25821_ctrl_ops,
|
|
V4L2_CID_SATURATION, 0, 10000, 1, 5000);
|
|
v4l2_ctrl_new_std(hdl, &cx25821_ctrl_ops,
|
|
V4L2_CID_HUE, 0, 10000, 1, 5000);
|
|
if (hdl->error) {
|
|
err = hdl->error;
|
|
goto fail_unreg;
|
|
}
|
|
|
|
cx25821_risc_stopper(dev->pci, &dev->channels[i].vidq.stopper,
|
|
dev->channels[i].sram_channels->dma_ctl, 0x11, 0);
|
|
|
|
dev->channels[i].sram_channels = &cx25821_sram_channels[i];
|
|
dev->channels[i].resources = 0;
|
|
|
|
cx_write(dev->channels[i].sram_channels->int_stat, 0xffffffff);
|
|
|
|
INIT_LIST_HEAD(&dev->channels[i].vidq.active);
|
|
INIT_LIST_HEAD(&dev->channels[i].vidq.queued);
|
|
|
|
dev->channels[i].timeout_data.dev = dev;
|
|
dev->channels[i].timeout_data.channel =
|
|
&cx25821_sram_channels[i];
|
|
dev->channels[i].vidq.timeout.function = cx25821_vid_timeout;
|
|
dev->channels[i].vidq.timeout.data =
|
|
(unsigned long)&dev->channels[i].timeout_data;
|
|
init_timer(&dev->channels[i].vidq.timeout);
|
|
|
|
/* register v4l devices */
|
|
*vdev = cx25821_video_device;
|
|
vdev->v4l2_dev = &dev->v4l2_dev;
|
|
vdev->ctrl_handler = hdl;
|
|
snprintf(vdev->name, sizeof(vdev->name), "%s #%d", dev->name, i);
|
|
video_set_drvdata(vdev, dev);
|
|
|
|
err = video_register_device(vdev, VFL_TYPE_GRABBER,
|
|
video_nr[dev->nr]);
|
|
|
|
if (err < 0)
|
|
goto fail_unreg;
|
|
}
|
|
|
|
/* set PCI interrupt */
|
|
cx_set(PCI_INT_MSK, 0xff);
|
|
|
|
/* initial device configuration */
|
|
mutex_lock(&dev->lock);
|
|
dev->tvnorm = V4L2_STD_NTSC_M,
|
|
cx25821_set_tvnorm(dev, dev->tvnorm);
|
|
mutex_unlock(&dev->lock);
|
|
|
|
return 0;
|
|
|
|
fail_unreg:
|
|
while (i >= 0)
|
|
cx25821_video_unregister(dev, i--);
|
|
return err;
|
|
}
|