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776 lines
21 KiB
776 lines
21 KiB
// 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 <[email protected]>, <[email protected]> |
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* Based on Steven Toth <[email protected]> cx25821 driver |
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* Parts adapted/taken from Eduardo Moscoso Rubino |
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* Copyright (C) 2009 Eduardo Moscoso Rubino <[email protected]> |
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*/ |
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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 <[email protected]>"); |
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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) |
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chan->use_cif_resolution = 1; |
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else |
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chan->use_cif_resolution = 0; |
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chan->cif_width = chan->width; |
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medusa_set_resolution(dev, chan->width, SRAM_CH00); |
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return 0; |
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} |
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static int vidioc_log_status(struct file *file, void *priv) |
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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 sram_channel *sram_ch = chan->sram_channels; |
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u32 tmp = 0; |
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tmp = cx_read(sram_ch->dma_ctl); |
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pr_info("Video input 0 is %s\n", |
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(tmp & 0x11) ? "streaming" : "stopped"); |
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return 0; |
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} |
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static int cx25821_vidioc_querycap(struct file *file, void *priv, |
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struct v4l2_capability *cap) |
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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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strscpy(cap->driver, "cx25821", sizeof(cap->driver)); |
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strscpy(cap->card, cx25821_boards[dev->board].name, sizeof(cap->card)); |
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sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci)); |
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cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OUTPUT | |
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V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | |
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V4L2_CAP_DEVICE_CAPS; |
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return 0; |
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} |
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static int cx25821_vidioc_g_std(struct file *file, void *priv, v4l2_std_id *tvnorms) |
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{ |
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struct cx25821_channel *chan = video_drvdata(file); |
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*tvnorms = chan->dev->tvnorm; |
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return 0; |
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} |
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static int cx25821_vidioc_s_std(struct file *file, void *priv, |
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v4l2_std_id tvnorms) |
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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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if (dev->tvnorm == tvnorms) |
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return 0; |
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dev->tvnorm = tvnorms; |
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chan->width = 720; |
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chan->height = (dev->tvnorm & V4L2_STD_625_50) ? 576 : 480; |
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medusa_set_videostandard(dev); |
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return 0; |
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} |
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static int cx25821_vidioc_enum_input(struct file *file, void *priv, |
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struct v4l2_input *i) |
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{ |
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if (i->index) |
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return -EINVAL; |
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i->type = V4L2_INPUT_TYPE_CAMERA; |
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i->std = CX25821_NORMS; |
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strscpy(i->name, "Composite", sizeof(i->name)); |
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return 0; |
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} |
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static int cx25821_vidioc_g_input(struct file *file, void *priv, unsigned int *i) |
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{ |
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*i = 0; |
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return 0; |
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} |
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static int cx25821_vidioc_s_input(struct file *file, void *priv, unsigned int i) |
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{ |
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return i ? -EINVAL : 0; |
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} |
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static int cx25821_s_ctrl(struct v4l2_ctrl *ctrl) |
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{ |
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struct cx25821_channel *chan = |
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container_of(ctrl->handler, struct cx25821_channel, hdl); |
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struct cx25821_dev *dev = chan->dev; |
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|
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switch (ctrl->id) { |
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case V4L2_CID_BRIGHTNESS: |
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medusa_set_brightness(dev, ctrl->val, chan->id); |
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break; |
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case V4L2_CID_HUE: |
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medusa_set_hue(dev, ctrl->val, chan->id); |
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break; |
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case V4L2_CID_CONTRAST: |
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medusa_set_contrast(dev, ctrl->val, chan->id); |
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break; |
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case V4L2_CID_SATURATION: |
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medusa_set_saturation(dev, ctrl->val, chan->id); |
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break; |
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default: |
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return -EINVAL; |
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} |
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return 0; |
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} |
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|
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static int cx25821_vidioc_enum_output(struct file *file, void *priv, |
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struct v4l2_output *o) |
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{ |
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if (o->index) |
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return -EINVAL; |
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o->type = V4L2_INPUT_TYPE_CAMERA; |
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o->std = CX25821_NORMS; |
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strscpy(o->name, "Composite", sizeof(o->name)); |
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return 0; |
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} |
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|
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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_VIDEO, |
|
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; |
|
}
|
|
|