// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2010-2013 Bluecherry, LLC <https://www.bluecherrydvr.com>
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*
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* Original author:
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* Ben Collins <bcollins@ubuntu.com>
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*
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* Additional work by:
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* John Brooks <john.brooks@bluecherry.net>
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/kthread.h>
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#include <linux/freezer.h>
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#include <media/v4l2-ioctl.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-event.h>
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#include <media/videobuf2-v4l2.h>
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#include <media/videobuf2-dma-contig.h>
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#include "solo6x10.h"
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#include "solo6x10-tw28.h"
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/* Image size is two fields, SOLO_HW_BPL is one horizontal line in hardware */
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#define SOLO_HW_BPL 2048
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#define solo_vlines(__solo) (__solo->video_vsize * 2)
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#define solo_image_size(__solo) (solo_bytesperline(__solo) * \
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solo_vlines(__solo))
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#define solo_bytesperline(__solo) (__solo->video_hsize * 2)
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#define MIN_VID_BUFFERS 2
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static inline void erase_on(struct solo_dev *solo_dev)
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{
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solo_reg_write(solo_dev, SOLO_VO_DISP_ERASE, SOLO_VO_DISP_ERASE_ON);
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solo_dev->erasing = 1;
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solo_dev->frame_blank = 0;
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}
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static inline int erase_off(struct solo_dev *solo_dev)
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{
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if (!solo_dev->erasing)
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return 0;
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/* First time around, assert erase off */
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if (!solo_dev->frame_blank)
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solo_reg_write(solo_dev, SOLO_VO_DISP_ERASE, 0);
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/* Keep the erasing flag on for 8 frames minimum */
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if (solo_dev->frame_blank++ >= 8)
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solo_dev->erasing = 0;
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return 1;
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}
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void solo_video_in_isr(struct solo_dev *solo_dev)
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{
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wake_up_interruptible_all(&solo_dev->disp_thread_wait);
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}
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static void solo_win_setup(struct solo_dev *solo_dev, u8 ch,
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int sx, int sy, int ex, int ey, int scale)
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{
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if (ch >= solo_dev->nr_chans)
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return;
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/* Here, we just keep window/channel the same */
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solo_reg_write(solo_dev, SOLO_VI_WIN_CTRL0(ch),
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SOLO_VI_WIN_CHANNEL(ch) |
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SOLO_VI_WIN_SX(sx) |
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SOLO_VI_WIN_EX(ex) |
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SOLO_VI_WIN_SCALE(scale));
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solo_reg_write(solo_dev, SOLO_VI_WIN_CTRL1(ch),
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SOLO_VI_WIN_SY(sy) |
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SOLO_VI_WIN_EY(ey));
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}
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static int solo_v4l2_ch_ext_4up(struct solo_dev *solo_dev, u8 idx, int on)
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{
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u8 ch = idx * 4;
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if (ch >= solo_dev->nr_chans)
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return -EINVAL;
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if (!on) {
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u8 i;
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for (i = ch; i < ch + 4; i++)
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solo_win_setup(solo_dev, i, solo_dev->video_hsize,
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solo_vlines(solo_dev),
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solo_dev->video_hsize,
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solo_vlines(solo_dev), 0);
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return 0;
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}
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/* Row 1 */
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solo_win_setup(solo_dev, ch, 0, 0, solo_dev->video_hsize / 2,
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solo_vlines(solo_dev) / 2, 3);
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solo_win_setup(solo_dev, ch + 1, solo_dev->video_hsize / 2, 0,
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solo_dev->video_hsize, solo_vlines(solo_dev) / 2, 3);
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/* Row 2 */
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solo_win_setup(solo_dev, ch + 2, 0, solo_vlines(solo_dev) / 2,
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solo_dev->video_hsize / 2, solo_vlines(solo_dev), 3);
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solo_win_setup(solo_dev, ch + 3, solo_dev->video_hsize / 2,
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solo_vlines(solo_dev) / 2, solo_dev->video_hsize,
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solo_vlines(solo_dev), 3);
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return 0;
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}
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static int solo_v4l2_ch_ext_16up(struct solo_dev *solo_dev, int on)
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{
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int sy, ysize, hsize, i;
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if (!on) {
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for (i = 0; i < 16; i++)
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solo_win_setup(solo_dev, i, solo_dev->video_hsize,
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solo_vlines(solo_dev),
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solo_dev->video_hsize,
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solo_vlines(solo_dev), 0);
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return 0;
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}
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ysize = solo_vlines(solo_dev) / 4;
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hsize = solo_dev->video_hsize / 4;
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for (sy = 0, i = 0; i < 4; i++, sy += ysize) {
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solo_win_setup(solo_dev, i * 4, 0, sy, hsize,
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sy + ysize, 5);
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solo_win_setup(solo_dev, (i * 4) + 1, hsize, sy,
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hsize * 2, sy + ysize, 5);
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solo_win_setup(solo_dev, (i * 4) + 2, hsize * 2, sy,
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hsize * 3, sy + ysize, 5);
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solo_win_setup(solo_dev, (i * 4) + 3, hsize * 3, sy,
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solo_dev->video_hsize, sy + ysize, 5);
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}
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return 0;
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}
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static int solo_v4l2_ch(struct solo_dev *solo_dev, u8 ch, int on)
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{
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u8 ext_ch;
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if (ch < solo_dev->nr_chans) {
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solo_win_setup(solo_dev, ch, on ? 0 : solo_dev->video_hsize,
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on ? 0 : solo_vlines(solo_dev),
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solo_dev->video_hsize, solo_vlines(solo_dev),
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on ? 1 : 0);
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return 0;
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}
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if (ch >= solo_dev->nr_chans + solo_dev->nr_ext)
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return -EINVAL;
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ext_ch = ch - solo_dev->nr_chans;
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/* 4up's first */
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if (ext_ch < 4)
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return solo_v4l2_ch_ext_4up(solo_dev, ext_ch, on);
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/* Remaining case is 16up for 16-port */
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return solo_v4l2_ch_ext_16up(solo_dev, on);
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}
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static int solo_v4l2_set_ch(struct solo_dev *solo_dev, u8 ch)
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{
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if (ch >= solo_dev->nr_chans + solo_dev->nr_ext)
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return -EINVAL;
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erase_on(solo_dev);
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solo_v4l2_ch(solo_dev, solo_dev->cur_disp_ch, 0);
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solo_v4l2_ch(solo_dev, ch, 1);
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solo_dev->cur_disp_ch = ch;
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return 0;
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}
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static void solo_fillbuf(struct solo_dev *solo_dev,
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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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dma_addr_t addr;
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unsigned int fdma_addr;
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int error = -1;
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int i;
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addr = vb2_dma_contig_plane_dma_addr(vb, 0);
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if (!addr)
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goto finish_buf;
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if (erase_off(solo_dev)) {
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void *p = vb2_plane_vaddr(vb, 0);
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int image_size = solo_image_size(solo_dev);
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for (i = 0; i < image_size; i += 2) {
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((u8 *)p)[i] = 0x80;
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((u8 *)p)[i + 1] = 0x00;
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}
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error = 0;
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} else {
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fdma_addr = SOLO_DISP_EXT_ADDR + (solo_dev->old_write *
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(SOLO_HW_BPL * solo_vlines(solo_dev)));
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error = solo_p2m_dma_t(solo_dev, 0, addr, fdma_addr,
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solo_bytesperline(solo_dev),
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solo_vlines(solo_dev), SOLO_HW_BPL);
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}
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finish_buf:
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if (!error) {
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vb2_set_plane_payload(vb, 0,
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solo_vlines(solo_dev) * solo_bytesperline(solo_dev));
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vbuf->sequence = solo_dev->sequence++;
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vb->timestamp = ktime_get_ns();
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}
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vb2_buffer_done(vb, error ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
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}
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static void solo_thread_try(struct solo_dev *solo_dev)
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{
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struct solo_vb2_buf *vb;
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/* Only "break" from this loop if slock is held, otherwise
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* just return. */
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for (;;) {
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unsigned int cur_write;
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cur_write = SOLO_VI_STATUS0_PAGE(
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solo_reg_read(solo_dev, SOLO_VI_STATUS0));
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if (cur_write == solo_dev->old_write)
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return;
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spin_lock(&solo_dev->slock);
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if (list_empty(&solo_dev->vidq_active))
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break;
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vb = list_first_entry(&solo_dev->vidq_active, struct solo_vb2_buf,
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list);
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solo_dev->old_write = cur_write;
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list_del(&vb->list);
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spin_unlock(&solo_dev->slock);
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solo_fillbuf(solo_dev, &vb->vb.vb2_buf);
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}
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assert_spin_locked(&solo_dev->slock);
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spin_unlock(&solo_dev->slock);
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}
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static int solo_thread(void *data)
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{
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struct solo_dev *solo_dev = data;
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DECLARE_WAITQUEUE(wait, current);
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set_freezable();
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add_wait_queue(&solo_dev->disp_thread_wait, &wait);
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for (;;) {
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long timeout = schedule_timeout_interruptible(HZ);
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if (timeout == -ERESTARTSYS || kthread_should_stop())
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break;
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solo_thread_try(solo_dev);
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try_to_freeze();
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}
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remove_wait_queue(&solo_dev->disp_thread_wait, &wait);
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return 0;
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}
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static int solo_start_thread(struct solo_dev *solo_dev)
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{
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int ret = 0;
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solo_dev->kthread = kthread_run(solo_thread, solo_dev, SOLO6X10_NAME "_disp");
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if (IS_ERR(solo_dev->kthread)) {
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ret = PTR_ERR(solo_dev->kthread);
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solo_dev->kthread = NULL;
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return ret;
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}
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solo_irq_on(solo_dev, SOLO_IRQ_VIDEO_IN);
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return ret;
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}
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static void solo_stop_thread(struct solo_dev *solo_dev)
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{
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if (!solo_dev->kthread)
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return;
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solo_irq_off(solo_dev, SOLO_IRQ_VIDEO_IN);
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kthread_stop(solo_dev->kthread);
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solo_dev->kthread = NULL;
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}
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static int solo_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 solo_dev *solo_dev = vb2_get_drv_priv(q);
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sizes[0] = solo_image_size(solo_dev);
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*num_planes = 1;
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if (*num_buffers < MIN_VID_BUFFERS)
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*num_buffers = MIN_VID_BUFFERS;
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return 0;
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}
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static int solo_start_streaming(struct vb2_queue *q, unsigned int count)
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{
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struct solo_dev *solo_dev = vb2_get_drv_priv(q);
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solo_dev->sequence = 0;
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return solo_start_thread(solo_dev);
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}
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static void solo_stop_streaming(struct vb2_queue *q)
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{
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struct solo_dev *solo_dev = vb2_get_drv_priv(q);
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solo_stop_thread(solo_dev);
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spin_lock(&solo_dev->slock);
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while (!list_empty(&solo_dev->vidq_active)) {
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struct solo_vb2_buf *buf = list_entry(
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solo_dev->vidq_active.next,
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struct solo_vb2_buf, list);
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list_del(&buf->list);
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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(&solo_dev->slock);
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INIT_LIST_HEAD(&solo_dev->vidq_active);
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}
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static void solo_buf_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 vb2_queue *vq = vb->vb2_queue;
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struct solo_dev *solo_dev = vb2_get_drv_priv(vq);
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struct solo_vb2_buf *solo_vb =
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container_of(vbuf, struct solo_vb2_buf, vb);
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spin_lock(&solo_dev->slock);
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list_add_tail(&solo_vb->list, &solo_dev->vidq_active);
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spin_unlock(&solo_dev->slock);
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wake_up_interruptible(&solo_dev->disp_thread_wait);
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}
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static const struct vb2_ops solo_video_qops = {
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.queue_setup = solo_queue_setup,
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.buf_queue = solo_buf_queue,
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.start_streaming = solo_start_streaming,
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.stop_streaming = solo_stop_streaming,
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.wait_prepare = vb2_ops_wait_prepare,
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.wait_finish = vb2_ops_wait_finish,
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};
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static int solo_querycap(struct file *file, void *priv,
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struct v4l2_capability *cap)
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{
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struct solo_dev *solo_dev = video_drvdata(file);
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strscpy(cap->driver, SOLO6X10_NAME, sizeof(cap->driver));
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strscpy(cap->card, "Softlogic 6x10", sizeof(cap->card));
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snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
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pci_name(solo_dev->pdev));
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return 0;
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}
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static int solo_enum_ext_input(struct solo_dev *solo_dev,
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struct v4l2_input *input)
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{
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int ext = input->index - solo_dev->nr_chans;
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unsigned int nup, first;
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if (ext >= solo_dev->nr_ext)
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return -EINVAL;
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nup = (ext == 4) ? 16 : 4;
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first = (ext & 3) << 2; /* first channel in the n-up */
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snprintf(input->name, sizeof(input->name),
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"Multi %d-up (cameras %d-%d)",
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nup, first + 1, first + nup);
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/* Possible outputs:
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* Multi 4-up (cameras 1-4)
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* Multi 4-up (cameras 5-8)
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* Multi 4-up (cameras 9-12)
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* Multi 4-up (cameras 13-16)
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* Multi 16-up (cameras 1-16)
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*/
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return 0;
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}
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static int solo_enum_input(struct file *file, void *priv,
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struct v4l2_input *input)
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{
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struct solo_dev *solo_dev = video_drvdata(file);
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if (input->index >= solo_dev->nr_chans) {
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int ret = solo_enum_ext_input(solo_dev, input);
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if (ret < 0)
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return ret;
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} else {
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snprintf(input->name, sizeof(input->name), "Camera %d",
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input->index + 1);
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/* We can only check this for normal inputs */
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if (!tw28_get_video_status(solo_dev, input->index))
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input->status = V4L2_IN_ST_NO_SIGNAL;
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}
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input->type = V4L2_INPUT_TYPE_CAMERA;
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input->std = solo_dev->vfd->tvnorms;
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return 0;
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}
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static int solo_set_input(struct file *file, void *priv, unsigned int index)
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{
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struct solo_dev *solo_dev = video_drvdata(file);
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int ret = solo_v4l2_set_ch(solo_dev, index);
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if (!ret) {
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while (erase_off(solo_dev))
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/* Do nothing */;
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}
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return ret;
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}
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static int solo_get_input(struct file *file, void *priv, unsigned int *index)
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{
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struct solo_dev *solo_dev = video_drvdata(file);
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*index = solo_dev->cur_disp_ch;
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return 0;
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}
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static int solo_enum_fmt_cap(struct file *file, void *priv,
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struct v4l2_fmtdesc *f)
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{
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if (f->index)
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return -EINVAL;
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f->pixelformat = V4L2_PIX_FMT_UYVY;
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return 0;
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}
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static int solo_try_fmt_cap(struct file *file, void *priv,
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struct v4l2_format *f)
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{
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struct solo_dev *solo_dev = video_drvdata(file);
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struct v4l2_pix_format *pix = &f->fmt.pix;
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int image_size = solo_image_size(solo_dev);
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if (pix->pixelformat != V4L2_PIX_FMT_UYVY)
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return -EINVAL;
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pix->width = solo_dev->video_hsize;
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pix->height = solo_vlines(solo_dev);
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pix->sizeimage = image_size;
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pix->field = V4L2_FIELD_INTERLACED;
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pix->pixelformat = V4L2_PIX_FMT_UYVY;
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pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
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return 0;
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}
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static int solo_set_fmt_cap(struct file *file, void *priv,
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struct v4l2_format *f)
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{
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struct solo_dev *solo_dev = video_drvdata(file);
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if (vb2_is_busy(&solo_dev->vidq))
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return -EBUSY;
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/* For right now, if it doesn't match our running config,
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* then fail */
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return solo_try_fmt_cap(file, priv, f);
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}
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static int solo_get_fmt_cap(struct file *file, void *priv,
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struct v4l2_format *f)
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{
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struct solo_dev *solo_dev = video_drvdata(file);
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struct v4l2_pix_format *pix = &f->fmt.pix;
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pix->width = solo_dev->video_hsize;
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pix->height = solo_vlines(solo_dev);
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pix->pixelformat = V4L2_PIX_FMT_UYVY;
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pix->field = V4L2_FIELD_INTERLACED;
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pix->sizeimage = solo_image_size(solo_dev);
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pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
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pix->bytesperline = solo_bytesperline(solo_dev);
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return 0;
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}
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static int solo_g_std(struct file *file, void *priv, v4l2_std_id *i)
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{
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struct solo_dev *solo_dev = video_drvdata(file);
|
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if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC)
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*i = V4L2_STD_NTSC_M;
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else
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*i = V4L2_STD_PAL;
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return 0;
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}
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int solo_set_video_type(struct solo_dev *solo_dev, bool is_50hz)
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{
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int i;
|
|
/* Make sure all video nodes are idle */
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if (vb2_is_busy(&solo_dev->vidq))
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return -EBUSY;
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for (i = 0; i < solo_dev->nr_chans; i++)
|
if (vb2_is_busy(&solo_dev->v4l2_enc[i]->vidq))
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return -EBUSY;
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solo_dev->video_type = is_50hz ? SOLO_VO_FMT_TYPE_PAL :
|
SOLO_VO_FMT_TYPE_NTSC;
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/* Reconfigure for the new standard */
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solo_disp_init(solo_dev);
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solo_enc_init(solo_dev);
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solo_tw28_init(solo_dev);
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for (i = 0; i < solo_dev->nr_chans; i++)
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solo_update_mode(solo_dev->v4l2_enc[i]);
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return solo_v4l2_set_ch(solo_dev, solo_dev->cur_disp_ch);
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}
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static int solo_s_std(struct file *file, void *priv, v4l2_std_id std)
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{
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struct solo_dev *solo_dev = video_drvdata(file);
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return solo_set_video_type(solo_dev, std & V4L2_STD_625_50);
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}
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static int solo_s_ctrl(struct v4l2_ctrl *ctrl)
|
{
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struct solo_dev *solo_dev =
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container_of(ctrl->handler, struct solo_dev, disp_hdl);
|
|
switch (ctrl->id) {
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case V4L2_CID_MOTION_TRACE:
|
if (ctrl->val) {
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solo_reg_write(solo_dev, SOLO_VI_MOTION_BORDER,
|
SOLO_VI_MOTION_Y_ADD |
|
SOLO_VI_MOTION_Y_VALUE(0x20) |
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SOLO_VI_MOTION_CB_VALUE(0x10) |
|
SOLO_VI_MOTION_CR_VALUE(0x10));
|
solo_reg_write(solo_dev, SOLO_VI_MOTION_BAR,
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SOLO_VI_MOTION_CR_ADD |
|
SOLO_VI_MOTION_Y_VALUE(0x10) |
|
SOLO_VI_MOTION_CB_VALUE(0x80) |
|
SOLO_VI_MOTION_CR_VALUE(0x10));
|
} else {
|
solo_reg_write(solo_dev, SOLO_VI_MOTION_BORDER, 0);
|
solo_reg_write(solo_dev, SOLO_VI_MOTION_BAR, 0);
|
}
|
return 0;
|
default:
|
break;
|
}
|
return -EINVAL;
|
}
|
|
static const struct v4l2_file_operations solo_v4l2_fops = {
|
.owner = THIS_MODULE,
|
.open = v4l2_fh_open,
|
.release = vb2_fop_release,
|
.read = vb2_fop_read,
|
.poll = vb2_fop_poll,
|
.mmap = vb2_fop_mmap,
|
.unlocked_ioctl = video_ioctl2,
|
};
|
|
static const struct v4l2_ioctl_ops solo_v4l2_ioctl_ops = {
|
.vidioc_querycap = solo_querycap,
|
.vidioc_s_std = solo_s_std,
|
.vidioc_g_std = solo_g_std,
|
/* Input callbacks */
|
.vidioc_enum_input = solo_enum_input,
|
.vidioc_s_input = solo_set_input,
|
.vidioc_g_input = solo_get_input,
|
/* Video capture format callbacks */
|
.vidioc_enum_fmt_vid_cap = solo_enum_fmt_cap,
|
.vidioc_try_fmt_vid_cap = solo_try_fmt_cap,
|
.vidioc_s_fmt_vid_cap = solo_set_fmt_cap,
|
.vidioc_g_fmt_vid_cap = solo_get_fmt_cap,
|
/* Streaming I/O */
|
.vidioc_reqbufs = vb2_ioctl_reqbufs,
|
.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,
|
/* Logging and events */
|
.vidioc_log_status = v4l2_ctrl_log_status,
|
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
|
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
|
};
|
|
static const struct video_device solo_v4l2_template = {
|
.name = SOLO6X10_NAME,
|
.fops = &solo_v4l2_fops,
|
.ioctl_ops = &solo_v4l2_ioctl_ops,
|
.minor = -1,
|
.release = video_device_release,
|
.tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL,
|
.device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE |
|
V4L2_CAP_STREAMING,
|
};
|
|
static const struct v4l2_ctrl_ops solo_ctrl_ops = {
|
.s_ctrl = solo_s_ctrl,
|
};
|
|
static const struct v4l2_ctrl_config solo_motion_trace_ctrl = {
|
.ops = &solo_ctrl_ops,
|
.id = V4L2_CID_MOTION_TRACE,
|
.name = "Motion Detection Trace",
|
.type = V4L2_CTRL_TYPE_BOOLEAN,
|
.max = 1,
|
.step = 1,
|
};
|
|
int solo_v4l2_init(struct solo_dev *solo_dev, unsigned nr)
|
{
|
int ret;
|
int i;
|
|
init_waitqueue_head(&solo_dev->disp_thread_wait);
|
spin_lock_init(&solo_dev->slock);
|
mutex_init(&solo_dev->lock);
|
INIT_LIST_HEAD(&solo_dev->vidq_active);
|
|
solo_dev->vfd = video_device_alloc();
|
if (!solo_dev->vfd)
|
return -ENOMEM;
|
|
*solo_dev->vfd = solo_v4l2_template;
|
solo_dev->vfd->v4l2_dev = &solo_dev->v4l2_dev;
|
solo_dev->vfd->queue = &solo_dev->vidq;
|
solo_dev->vfd->lock = &solo_dev->lock;
|
v4l2_ctrl_handler_init(&solo_dev->disp_hdl, 1);
|
v4l2_ctrl_new_custom(&solo_dev->disp_hdl, &solo_motion_trace_ctrl, NULL);
|
if (solo_dev->disp_hdl.error) {
|
ret = solo_dev->disp_hdl.error;
|
goto fail;
|
}
|
solo_dev->vfd->ctrl_handler = &solo_dev->disp_hdl;
|
|
video_set_drvdata(solo_dev->vfd, solo_dev);
|
|
solo_dev->vidq.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
solo_dev->vidq.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
|
solo_dev->vidq.ops = &solo_video_qops;
|
solo_dev->vidq.mem_ops = &vb2_dma_contig_memops;
|
solo_dev->vidq.drv_priv = solo_dev;
|
solo_dev->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
|
solo_dev->vidq.gfp_flags = __GFP_DMA32 | __GFP_KSWAPD_RECLAIM;
|
solo_dev->vidq.buf_struct_size = sizeof(struct solo_vb2_buf);
|
solo_dev->vidq.lock = &solo_dev->lock;
|
solo_dev->vidq.dev = &solo_dev->pdev->dev;
|
ret = vb2_queue_init(&solo_dev->vidq);
|
if (ret < 0)
|
goto fail;
|
|
/* Cycle all the channels and clear */
|
for (i = 0; i < solo_dev->nr_chans; i++) {
|
solo_v4l2_set_ch(solo_dev, i);
|
while (erase_off(solo_dev))
|
/* Do nothing */;
|
}
|
|
/* Set the default display channel */
|
solo_v4l2_set_ch(solo_dev, 0);
|
while (erase_off(solo_dev))
|
/* Do nothing */;
|
|
ret = video_register_device(solo_dev->vfd, VFL_TYPE_VIDEO, nr);
|
if (ret < 0)
|
goto fail;
|
|
snprintf(solo_dev->vfd->name, sizeof(solo_dev->vfd->name), "%s (%i)",
|
SOLO6X10_NAME, solo_dev->vfd->num);
|
|
dev_info(&solo_dev->pdev->dev, "Display as /dev/video%d with %d inputs (%d extended)\n",
|
solo_dev->vfd->num,
|
solo_dev->nr_chans, solo_dev->nr_ext);
|
|
return 0;
|
|
fail:
|
video_device_release(solo_dev->vfd);
|
v4l2_ctrl_handler_free(&solo_dev->disp_hdl);
|
solo_dev->vfd = NULL;
|
return ret;
|
}
|
|
void solo_v4l2_exit(struct solo_dev *solo_dev)
|
{
|
if (solo_dev->vfd == NULL)
|
return;
|
|
video_unregister_device(solo_dev->vfd);
|
v4l2_ctrl_handler_free(&solo_dev->disp_hdl);
|
solo_dev->vfd = NULL;
|
}
|
