777 lines
21 KiB
C
777 lines
21 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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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> cx25821 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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#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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#define FORMAT_FLAGS_PACKED 0x01
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static const struct cx25821_fmt formats[] = {
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{
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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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.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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};
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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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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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return NULL;
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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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/* 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_video_irq(struct cx25821_dev *dev, int chan_num, u32 status)
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{
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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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struct cx25821_dmaqueue *dmaq =
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&dev->channels[channel->i].dma_vidq;
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struct cx25821_buffer *buf;
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spin_lock(&dev->slock);
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if (!list_empty(&dmaq->active)) {
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buf = list_entry(dmaq->active.next,
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struct cx25821_buffer, queue);
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buf->vb.vb2_buf.timestamp = ktime_get_ns();
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buf->vb.sequence = dmaq->count++;
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list_del(&buf->queue);
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vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
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}
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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_queue_setup(struct vb2_queue *q,
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unsigned int *num_buffers, unsigned int *num_planes,
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unsigned int sizes[], struct device *alloc_devs[])
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{
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struct cx25821_channel *chan = q->drv_priv;
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unsigned size = (chan->fmt->depth * chan->width * chan->height) >> 3;
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if (*num_planes)
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return sizes[0] < size ? -EINVAL : 0;
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*num_planes = 1;
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sizes[0] = size;
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return 0;
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}
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static int cx25821_buffer_prepare(struct vb2_buffer *vb)
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{
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struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
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struct cx25821_channel *chan = vb->vb2_queue->drv_priv;
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struct cx25821_dev *dev = chan->dev;
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struct cx25821_buffer *buf =
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container_of(vbuf, struct cx25821_buffer, vb);
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struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
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u32 line0_offset;
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int bpl_local = LINE_SIZE_D1;
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int ret;
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if (chan->pixel_formats == PIXEL_FRMT_411)
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buf->bpl = (chan->fmt->depth * chan->width) >> 3;
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else
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buf->bpl = (chan->fmt->depth >> 3) * chan->width;
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if (vb2_plane_size(vb, 0) < chan->height * buf->bpl)
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return -EINVAL;
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vb2_set_plane_payload(vb, 0, chan->height * buf->bpl);
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buf->vb.field = chan->field;
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if (chan->pixel_formats == 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 (chan->use_cif_resolution) {
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if (dev->tvnorm & V4L2_STD_625_50)
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bpl_local = 352 << 1;
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else
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bpl_local = chan->cif_width << 1;
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}
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}
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switch (chan->field) {
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case V4L2_FIELD_TOP:
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ret = cx25821_risc_buffer(dev->pci, &buf->risc,
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sgt->sgl, 0, UNSET,
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buf->bpl, 0, chan->height);
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break;
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case V4L2_FIELD_BOTTOM:
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ret = cx25821_risc_buffer(dev->pci, &buf->risc,
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sgt->sgl, UNSET, 0,
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buf->bpl, 0, chan->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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ret = cx25821_risc_buffer(dev->pci, &buf->risc,
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sgt->sgl, line0_offset,
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bpl_local, bpl_local, bpl_local,
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chan->height >> 1);
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break;
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case V4L2_FIELD_SEQ_TB:
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ret = cx25821_risc_buffer(dev->pci, &buf->risc,
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sgt->sgl,
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0, buf->bpl * (chan->height >> 1),
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buf->bpl, 0, chan->height >> 1);
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break;
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case V4L2_FIELD_SEQ_BT:
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ret = cx25821_risc_buffer(dev->pci, &buf->risc,
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sgt->sgl,
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buf->bpl * (chan->height >> 1), 0,
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buf->bpl, 0, chan->height >> 1);
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break;
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default:
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WARN_ON(1);
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ret = -EINVAL;
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break;
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}
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dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp 0x%08x - dma=0x%08lx\n",
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buf, buf->vb.vb2_buf.index, chan->width, chan->height,
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chan->fmt->depth, chan->fmt->fourcc,
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(unsigned long)buf->risc.dma);
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return ret;
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}
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static void cx25821_buffer_finish(struct vb2_buffer *vb)
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{
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struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
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struct cx25821_buffer *buf =
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container_of(vbuf, struct cx25821_buffer, vb);
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struct cx25821_channel *chan = vb->vb2_queue->drv_priv;
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struct cx25821_dev *dev = chan->dev;
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cx25821_free_buffer(dev, buf);
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}
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static void cx25821_buffer_queue(struct vb2_buffer *vb)
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{
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struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
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struct cx25821_buffer *buf =
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container_of(vbuf, struct cx25821_buffer, vb);
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struct cx25821_channel *chan = vb->vb2_queue->drv_priv;
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struct cx25821_dev *dev = chan->dev;
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struct cx25821_buffer *prev;
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struct cx25821_dmaqueue *q = &dev->channels[chan->id].dma_vidq;
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buf->risc.cpu[1] = cpu_to_le32(buf->risc.dma + 12);
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buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_CNT_INC);
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buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma + 12);
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buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
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if (list_empty(&q->active)) {
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list_add_tail(&buf->queue, &q->active);
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} else {
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buf->risc.cpu[0] |= cpu_to_le32(RISC_IRQ1);
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prev = list_entry(q->active.prev, struct cx25821_buffer,
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queue);
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list_add_tail(&buf->queue, &q->active);
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prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
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}
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}
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static int cx25821_start_streaming(struct vb2_queue *q, unsigned int count)
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{
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struct cx25821_channel *chan = q->drv_priv;
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struct cx25821_dev *dev = chan->dev;
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struct cx25821_dmaqueue *dmaq = &dev->channels[chan->id].dma_vidq;
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struct cx25821_buffer *buf = list_entry(dmaq->active.next,
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struct cx25821_buffer, queue);
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dmaq->count = 0;
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cx25821_start_video_dma(dev, dmaq, buf, chan->sram_channels);
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return 0;
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}
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static void cx25821_stop_streaming(struct vb2_queue *q)
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{
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struct cx25821_channel *chan = q->drv_priv;
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struct cx25821_dev *dev = chan->dev;
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struct cx25821_dmaqueue *dmaq = &dev->channels[chan->id].dma_vidq;
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unsigned long flags;
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cx_write(chan->sram_channels->dma_ctl, 0); /* FIFO and RISC disable */
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spin_lock_irqsave(&dev->slock, flags);
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while (!list_empty(&dmaq->active)) {
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struct cx25821_buffer *buf = list_entry(dmaq->active.next,
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struct cx25821_buffer, queue);
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list_del(&buf->queue);
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vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
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}
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spin_unlock_irqrestore(&dev->slock, flags);
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}
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static const struct vb2_ops cx25821_video_qops = {
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.queue_setup = cx25821_queue_setup,
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.buf_prepare = cx25821_buffer_prepare,
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.buf_finish = cx25821_buffer_finish,
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.buf_queue = cx25821_buffer_queue,
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.wait_prepare = vb2_ops_wait_prepare,
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.wait_finish = vb2_ops_wait_finish,
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.start_streaming = cx25821_start_streaming,
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.stop_streaming = cx25821_stop_streaming,
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};
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/* VIDEO IOCTLS */
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static int cx25821_vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
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struct v4l2_fmtdesc *f)
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{
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if (unlikely(f->index >= ARRAY_SIZE(formats)))
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return -EINVAL;
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f->pixelformat = formats[f->index].fourcc;
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return 0;
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}
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static int cx25821_vidioc_g_fmt_vid_cap(struct file *file, void *priv,
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struct v4l2_format *f)
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{
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struct cx25821_channel *chan = video_drvdata(file);
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f->fmt.pix.width = chan->width;
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f->fmt.pix.height = chan->height;
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f->fmt.pix.field = chan->field;
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f->fmt.pix.pixelformat = chan->fmt->fourcc;
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f->fmt.pix.bytesperline = (chan->width * chan->fmt->depth) >> 3;
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f->fmt.pix.sizeimage = chan->height * f->fmt.pix.bytesperline;
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f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
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return 0;
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}
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static int cx25821_vidioc_try_fmt_vid_cap(struct file *file, void *priv,
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struct v4l2_format *f)
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{
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struct cx25821_channel *chan = video_drvdata(file);
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struct cx25821_dev *dev = chan->dev;
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const struct cx25821_fmt *fmt;
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enum v4l2_field field = f->fmt.pix.field;
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unsigned int maxh;
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unsigned w;
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fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
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if (NULL == fmt)
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return -EINVAL;
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maxh = (dev->tvnorm & V4L2_STD_625_50) ? 576 : 480;
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w = f->fmt.pix.width;
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if (field != V4L2_FIELD_BOTTOM)
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field = V4L2_FIELD_TOP;
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if (w < 352) {
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w = 176;
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f->fmt.pix.height = maxh / 4;
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} else if (w < 720) {
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w = 352;
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f->fmt.pix.height = maxh / 2;
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} else {
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w = 720;
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f->fmt.pix.height = maxh;
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field = V4L2_FIELD_INTERLACED;
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}
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f->fmt.pix.field = field;
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f->fmt.pix.width = w;
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f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3;
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f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
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f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
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return 0;
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}
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static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
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struct v4l2_format *f)
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{
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struct cx25821_channel *chan = video_drvdata(file);
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struct cx25821_dev *dev = chan->dev;
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int pix_format = PIXEL_FRMT_422;
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int err;
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err = cx25821_vidioc_try_fmt_vid_cap(file, priv, f);
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if (0 != err)
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return err;
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chan->fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
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chan->field = f->fmt.pix.field;
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chan->width = f->fmt.pix.width;
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chan->height = f->fmt.pix.height;
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if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_Y41P)
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pix_format = PIXEL_FRMT_411;
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else
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pix_format = PIXEL_FRMT_422;
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cx25821_set_pixel_format(dev, SRAM_CH00, pix_format);
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/* check if cif resolution */
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||
|
if (chan->width == 320 || chan->width == 352)
|
||
|
chan->use_cif_resolution = 1;
|
||
|
else
|
||
|
chan->use_cif_resolution = 0;
|
||
|
|
||
|
chan->cif_width = chan->width;
|
||
|
medusa_set_resolution(dev, chan->width, SRAM_CH00);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int vidioc_log_status(struct file *file, void *priv)
|
||
|
{
|
||
|
struct cx25821_channel *chan = video_drvdata(file);
|
||
|
struct cx25821_dev *dev = chan->dev;
|
||
|
const struct sram_channel *sram_ch = chan->sram_channels;
|
||
|
u32 tmp = 0;
|
||
|
|
||
|
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_channel *chan = video_drvdata(file);
|
||
|
struct cx25821_dev *dev = chan->dev;
|
||
|
|
||
|
strscpy(cap->driver, "cx25821", sizeof(cap->driver));
|
||
|
strscpy(cap->card, cx25821_boards[dev->board].name, sizeof(cap->card));
|
||
|
sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
|
||
|
cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OUTPUT |
|
||
|
V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
|
||
|
V4L2_CAP_DEVICE_CAPS;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int cx25821_vidioc_g_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
|
||
|
{
|
||
|
struct cx25821_channel *chan = video_drvdata(file);
|
||
|
|
||
|
*tvnorms = chan->dev->tvnorm;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int cx25821_vidioc_s_std(struct file *file, void *priv,
|
||
|
v4l2_std_id tvnorms)
|
||
|
{
|
||
|
struct cx25821_channel *chan = video_drvdata(file);
|
||
|
struct cx25821_dev *dev = chan->dev;
|
||
|
|
||
|
if (dev->tvnorm == tvnorms)
|
||
|
return 0;
|
||
|
|
||
|
dev->tvnorm = tvnorms;
|
||
|
chan->width = 720;
|
||
|
chan->height = (dev->tvnorm & V4L2_STD_625_50) ? 576 : 480;
|
||
|
|
||
|
medusa_set_videostandard(dev);
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int cx25821_vidioc_enum_input(struct file *file, void *priv,
|
||
|
struct v4l2_input *i)
|
||
|
{
|
||
|
if (i->index)
|
||
|
return -EINVAL;
|
||
|
|
||
|
i->type = V4L2_INPUT_TYPE_CAMERA;
|
||
|
i->std = CX25821_NORMS;
|
||
|
strscpy(i->name, "Composite", sizeof(i->name));
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int cx25821_vidioc_g_input(struct file *file, void *priv, unsigned int *i)
|
||
|
{
|
||
|
*i = 0;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int cx25821_vidioc_s_input(struct file *file, void *priv, unsigned int i)
|
||
|
{
|
||
|
return i ? -EINVAL : 0;
|
||
|
}
|
||
|
|
||
|
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 int cx25821_vidioc_enum_output(struct file *file, void *priv,
|
||
|
struct v4l2_output *o)
|
||
|
{
|
||
|
if (o->index)
|
||
|
return -EINVAL;
|
||
|
|
||
|
o->type = V4L2_INPUT_TYPE_CAMERA;
|
||
|
o->std = CX25821_NORMS;
|
||
|
strscpy(o->name, "Composite", sizeof(o->name));
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int cx25821_vidioc_g_output(struct file *file, void *priv, unsigned int *o)
|
||
|
{
|
||
|
*o = 0;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int cx25821_vidioc_s_output(struct file *file, void *priv, unsigned int o)
|
||
|
{
|
||
|
return o ? -EINVAL : 0;
|
||
|
}
|
||
|
|
||
|
static int cx25821_vidioc_try_fmt_vid_out(struct file *file, void *priv,
|
||
|
struct v4l2_format *f)
|
||
|
{
|
||
|
struct cx25821_channel *chan = video_drvdata(file);
|
||
|
struct cx25821_dev *dev = chan->dev;
|
||
|
const struct cx25821_fmt *fmt;
|
||
|
|
||
|
fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
|
||
|
if (NULL == fmt)
|
||
|
return -EINVAL;
|
||
|
f->fmt.pix.width = 720;
|
||
|
f->fmt.pix.height = (dev->tvnorm & V4L2_STD_625_50) ? 576 : 480;
|
||
|
f->fmt.pix.field = V4L2_FIELD_INTERLACED;
|
||
|
f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3;
|
||
|
f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
|
||
|
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int vidioc_s_fmt_vid_out(struct file *file, void *priv,
|
||
|
struct v4l2_format *f)
|
||
|
{
|
||
|
struct cx25821_channel *chan = video_drvdata(file);
|
||
|
int err;
|
||
|
|
||
|
err = cx25821_vidioc_try_fmt_vid_out(file, priv, f);
|
||
|
|
||
|
if (0 != err)
|
||
|
return err;
|
||
|
|
||
|
chan->fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
|
||
|
chan->field = f->fmt.pix.field;
|
||
|
chan->width = f->fmt.pix.width;
|
||
|
chan->height = f->fmt.pix.height;
|
||
|
if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_Y41P)
|
||
|
chan->pixel_formats = PIXEL_FRMT_411;
|
||
|
else
|
||
|
chan->pixel_formats = PIXEL_FRMT_422;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
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 = v4l2_fh_open,
|
||
|
.release = vb2_fop_release,
|
||
|
.read = vb2_fop_read,
|
||
|
.poll = vb2_fop_poll,
|
||
|
.unlocked_ioctl = video_ioctl2,
|
||
|
.mmap = vb2_fop_mmap,
|
||
|
};
|
||
|
|
||
|
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 = vb2_ioctl_reqbufs,
|
||
|
.vidioc_prepare_buf = vb2_ioctl_prepare_buf,
|
||
|
.vidioc_create_bufs = vb2_ioctl_create_bufs,
|
||
|
.vidioc_querybuf = vb2_ioctl_querybuf,
|
||
|
.vidioc_qbuf = vb2_ioctl_qbuf,
|
||
|
.vidioc_dqbuf = vb2_ioctl_dqbuf,
|
||
|
.vidioc_streamon = vb2_ioctl_streamon,
|
||
|
.vidioc_streamoff = vb2_ioctl_streamoff,
|
||
|
.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_log_status = vidioc_log_status,
|
||
|
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
|
||
|
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
|
||
|
};
|
||
|
|
||
|
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,
|
||
|
.device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE |
|
||
|
V4L2_CAP_STREAMING,
|
||
|
};
|
||
|
|
||
|
static const struct v4l2_file_operations video_out_fops = {
|
||
|
.owner = THIS_MODULE,
|
||
|
.open = v4l2_fh_open,
|
||
|
.release = vb2_fop_release,
|
||
|
.write = vb2_fop_write,
|
||
|
.poll = vb2_fop_poll,
|
||
|
.unlocked_ioctl = video_ioctl2,
|
||
|
.mmap = vb2_fop_mmap,
|
||
|
};
|
||
|
|
||
|
static const struct v4l2_ioctl_ops video_out_ioctl_ops = {
|
||
|
.vidioc_querycap = cx25821_vidioc_querycap,
|
||
|
.vidioc_enum_fmt_vid_out = cx25821_vidioc_enum_fmt_vid_cap,
|
||
|
.vidioc_g_fmt_vid_out = cx25821_vidioc_g_fmt_vid_cap,
|
||
|
.vidioc_try_fmt_vid_out = cx25821_vidioc_try_fmt_vid_out,
|
||
|
.vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out,
|
||
|
.vidioc_g_std = cx25821_vidioc_g_std,
|
||
|
.vidioc_s_std = cx25821_vidioc_s_std,
|
||
|
.vidioc_enum_output = cx25821_vidioc_enum_output,
|
||
|
.vidioc_g_output = cx25821_vidioc_g_output,
|
||
|
.vidioc_s_output = cx25821_vidioc_s_output,
|
||
|
.vidioc_log_status = vidioc_log_status,
|
||
|
};
|
||
|
|
||
|
static const struct video_device cx25821_video_out_device = {
|
||
|
.name = "cx25821-video",
|
||
|
.fops = &video_out_fops,
|
||
|
.release = video_device_release_empty,
|
||
|
.minor = -1,
|
||
|
.ioctl_ops = &video_out_ioctl_ops,
|
||
|
.tvnorms = CX25821_NORMS,
|
||
|
.device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_READWRITE,
|
||
|
};
|
||
|
|
||
|
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);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
int cx25821_video_register(struct cx25821_dev *dev)
|
||
|
{
|
||
|
int err;
|
||
|
int i;
|
||
|
|
||
|
/* initial device configuration */
|
||
|
dev->tvnorm = V4L2_STD_NTSC_M;
|
||
|
|
||
|
spin_lock_init(&dev->slock);
|
||
|
|
||
|
for (i = 0; i < MAX_VID_CAP_CHANNEL_NUM - 1; ++i) {
|
||
|
struct cx25821_channel *chan = &dev->channels[i];
|
||
|
struct video_device *vdev = &chan->vdev;
|
||
|
struct v4l2_ctrl_handler *hdl = &chan->hdl;
|
||
|
struct vb2_queue *q;
|
||
|
bool is_output = i > SRAM_CH08;
|
||
|
|
||
|
if (i == SRAM_CH08) /* audio channel */
|
||
|
continue;
|
||
|
|
||
|
if (!is_output) {
|
||
|
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;
|
||
|
}
|
||
|
err = v4l2_ctrl_handler_setup(hdl);
|
||
|
if (err)
|
||
|
goto fail_unreg;
|
||
|
} else {
|
||
|
chan->out = &dev->vid_out_data[i - SRAM_CH09];
|
||
|
chan->out->chan = chan;
|
||
|
}
|
||
|
|
||
|
chan->sram_channels = &cx25821_sram_channels[i];
|
||
|
chan->width = 720;
|
||
|
chan->field = V4L2_FIELD_INTERLACED;
|
||
|
if (dev->tvnorm & V4L2_STD_625_50)
|
||
|
chan->height = 576;
|
||
|
else
|
||
|
chan->height = 480;
|
||
|
|
||
|
if (chan->pixel_formats == PIXEL_FRMT_411)
|
||
|
chan->fmt = cx25821_format_by_fourcc(V4L2_PIX_FMT_Y41P);
|
||
|
else
|
||
|
chan->fmt = cx25821_format_by_fourcc(V4L2_PIX_FMT_YUYV);
|
||
|
|
||
|
cx_write(chan->sram_channels->int_stat, 0xffffffff);
|
||
|
|
||
|
INIT_LIST_HEAD(&chan->dma_vidq.active);
|
||
|
|
||
|
q = &chan->vidq;
|
||
|
|
||
|
q->type = is_output ? V4L2_BUF_TYPE_VIDEO_OUTPUT :
|
||
|
V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
||
|
q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
|
||
|
q->io_modes |= is_output ? VB2_WRITE : VB2_READ;
|
||
|
q->gfp_flags = GFP_DMA32;
|
||
|
q->min_buffers_needed = 2;
|
||
|
q->drv_priv = chan;
|
||
|
q->buf_struct_size = sizeof(struct cx25821_buffer);
|
||
|
q->ops = &cx25821_video_qops;
|
||
|
q->mem_ops = &vb2_dma_sg_memops;
|
||
|
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
|
||
|
q->lock = &dev->lock;
|
||
|
q->dev = &dev->pci->dev;
|
||
|
|
||
|
if (!is_output) {
|
||
|
err = vb2_queue_init(q);
|
||
|
if (err < 0)
|
||
|
goto fail_unreg;
|
||
|
}
|
||
|
|
||
|
/* register v4l devices */
|
||
|
*vdev = is_output ? cx25821_video_out_device : cx25821_video_device;
|
||
|
vdev->v4l2_dev = &dev->v4l2_dev;
|
||
|
if (!is_output)
|
||
|
vdev->ctrl_handler = hdl;
|
||
|
else
|
||
|
vdev->vfl_dir = VFL_DIR_TX;
|
||
|
vdev->lock = &dev->lock;
|
||
|
vdev->queue = q;
|
||
|
snprintf(vdev->name, sizeof(vdev->name), "%s #%d", dev->name, i);
|
||
|
video_set_drvdata(vdev, chan);
|
||
|
|
||
|
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);
|
||
|
|
||
|
return 0;
|
||
|
|
||
|
fail_unreg:
|
||
|
while (i >= 0)
|
||
|
cx25821_video_unregister(dev, i--);
|
||
|
return err;
|
||
|
}
|