![Julia Lawall](/assets/img/avatar_default.png)
Use kcalloc or kzalloc rather than the combination of kmalloc and memset. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression x,y,flags; statement S; type T; @@ x = - kmalloc + kcalloc ( - y * sizeof(T), + y, sizeof(T), flags); if (x == NULL) S -memset(x, 0, y * sizeof(T)); @@ expression x,size,flags; statement S; @@ -x = kmalloc(size,flags); +x = kzalloc(size,flags); if (x == NULL) S -memset(x, 0, size); // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk>
1841 lines
45 KiB
C
1841 lines
45 KiB
C
/*
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* Copyright (C) 2005-2006 Micronas USA Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License (Version 2) as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/version.h>
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#include <linux/delay.h>
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#include <linux/sched.h>
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#include <linux/spinlock.h>
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#include <linux/slab.h>
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#include <linux/fs.h>
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#include <linux/unistd.h>
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#include <linux/time.h>
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#include <linux/vmalloc.h>
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#include <linux/pagemap.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-ioctl.h>
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#include <media/v4l2-subdev.h>
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#include <linux/i2c.h>
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#include <linux/mutex.h>
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#include <linux/uaccess.h>
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#include <asm/system.h>
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#include "go7007.h"
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#include "go7007-priv.h"
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#include "wis-i2c.h"
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/* Temporary defines until accepted in v4l-dvb */
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#ifndef V4L2_MPEG_STREAM_TYPE_MPEG_ELEM
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#define V4L2_MPEG_STREAM_TYPE_MPEG_ELEM 6 /* MPEG elementary stream */
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#endif
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#ifndef V4L2_MPEG_VIDEO_ENCODING_MPEG_4
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#define V4L2_MPEG_VIDEO_ENCODING_MPEG_4 3
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#endif
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#define call_all(dev, o, f, args...) \
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v4l2_device_call_until_err(dev, 0, o, f, ##args)
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static void deactivate_buffer(struct go7007_buffer *gobuf)
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{
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int i;
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if (gobuf->state != BUF_STATE_IDLE) {
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list_del(&gobuf->stream);
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gobuf->state = BUF_STATE_IDLE;
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}
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if (gobuf->page_count > 0) {
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for (i = 0; i < gobuf->page_count; ++i)
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page_cache_release(gobuf->pages[i]);
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gobuf->page_count = 0;
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}
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}
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static void abort_queued(struct go7007 *go)
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{
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struct go7007_buffer *gobuf, *next;
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list_for_each_entry_safe(gobuf, next, &go->stream, stream) {
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deactivate_buffer(gobuf);
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}
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}
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static int go7007_streamoff(struct go7007 *go)
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{
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int retval = -EINVAL;
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unsigned long flags;
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mutex_lock(&go->hw_lock);
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if (go->streaming) {
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go->streaming = 0;
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go7007_stream_stop(go);
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spin_lock_irqsave(&go->spinlock, flags);
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abort_queued(go);
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spin_unlock_irqrestore(&go->spinlock, flags);
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go7007_reset_encoder(go);
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retval = 0;
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}
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mutex_unlock(&go->hw_lock);
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return 0;
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}
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static int go7007_open(struct file *file)
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{
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struct go7007 *go = video_get_drvdata(video_devdata(file));
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struct go7007_file *gofh;
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if (go->status != STATUS_ONLINE)
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return -EBUSY;
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gofh = kmalloc(sizeof(struct go7007_file), GFP_KERNEL);
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if (gofh == NULL)
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return -ENOMEM;
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++go->ref_count;
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gofh->go = go;
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mutex_init(&gofh->lock);
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gofh->buf_count = 0;
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file->private_data = gofh;
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return 0;
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}
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static int go7007_release(struct file *file)
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{
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struct go7007_file *gofh = file->private_data;
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struct go7007 *go = gofh->go;
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if (gofh->buf_count > 0) {
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go7007_streamoff(go);
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go->in_use = 0;
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kfree(gofh->bufs);
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gofh->buf_count = 0;
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}
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kfree(gofh);
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if (--go->ref_count == 0)
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kfree(go);
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file->private_data = NULL;
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return 0;
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}
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static u32 get_frame_type_flag(struct go7007_buffer *gobuf, int format)
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{
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u8 *f = page_address(gobuf->pages[0]);
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switch (format) {
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case GO7007_FORMAT_MJPEG:
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return V4L2_BUF_FLAG_KEYFRAME;
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case GO7007_FORMAT_MPEG4:
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switch ((f[gobuf->frame_offset + 4] >> 6) & 0x3) {
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case 0:
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return V4L2_BUF_FLAG_KEYFRAME;
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case 1:
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return V4L2_BUF_FLAG_PFRAME;
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case 2:
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return V4L2_BUF_FLAG_BFRAME;
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default:
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return 0;
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}
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case GO7007_FORMAT_MPEG1:
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case GO7007_FORMAT_MPEG2:
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switch ((f[gobuf->frame_offset + 5] >> 3) & 0x7) {
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case 1:
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return V4L2_BUF_FLAG_KEYFRAME;
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case 2:
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return V4L2_BUF_FLAG_PFRAME;
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case 3:
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return V4L2_BUF_FLAG_BFRAME;
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default:
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return 0;
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}
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}
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return 0;
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}
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static int set_capture_size(struct go7007 *go, struct v4l2_format *fmt, int try)
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{
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int sensor_height = 0, sensor_width = 0;
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int width, height, i;
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if (fmt != NULL && fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG &&
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fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MPEG &&
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fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MPEG4)
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return -EINVAL;
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switch (go->standard) {
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case GO7007_STD_NTSC:
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sensor_width = 720;
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sensor_height = 480;
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break;
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case GO7007_STD_PAL:
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sensor_width = 720;
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sensor_height = 576;
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break;
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case GO7007_STD_OTHER:
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sensor_width = go->board_info->sensor_width;
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sensor_height = go->board_info->sensor_height;
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break;
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}
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if (fmt == NULL) {
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width = sensor_width;
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height = sensor_height;
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} else if (go->board_info->sensor_flags & GO7007_SENSOR_SCALING) {
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if (fmt->fmt.pix.width > sensor_width)
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width = sensor_width;
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else if (fmt->fmt.pix.width < 144)
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width = 144;
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else
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width = fmt->fmt.pix.width & ~0x0f;
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if (fmt->fmt.pix.height > sensor_height)
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height = sensor_height;
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else if (fmt->fmt.pix.height < 96)
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height = 96;
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else
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height = fmt->fmt.pix.height & ~0x0f;
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} else {
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int requested_size = fmt->fmt.pix.width * fmt->fmt.pix.height;
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int sensor_size = sensor_width * sensor_height;
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if (64 * requested_size < 9 * sensor_size) {
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width = sensor_width / 4;
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height = sensor_height / 4;
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} else if (64 * requested_size < 36 * sensor_size) {
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width = sensor_width / 2;
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height = sensor_height / 2;
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} else {
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width = sensor_width;
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height = sensor_height;
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}
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width &= ~0xf;
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height &= ~0xf;
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}
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if (fmt != NULL) {
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u32 pixelformat = fmt->fmt.pix.pixelformat;
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memset(fmt, 0, sizeof(*fmt));
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fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
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fmt->fmt.pix.width = width;
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fmt->fmt.pix.height = height;
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fmt->fmt.pix.pixelformat = pixelformat;
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fmt->fmt.pix.field = V4L2_FIELD_NONE;
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fmt->fmt.pix.bytesperline = 0;
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fmt->fmt.pix.sizeimage = GO7007_BUF_SIZE;
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fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* ?? */
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}
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if (try)
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return 0;
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go->width = width;
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go->height = height;
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go->encoder_h_offset = go->board_info->sensor_h_offset;
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go->encoder_v_offset = go->board_info->sensor_v_offset;
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for (i = 0; i < 4; ++i)
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go->modet[i].enable = 0;
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for (i = 0; i < 1624; ++i)
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go->modet_map[i] = 0;
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if (go->board_info->sensor_flags & GO7007_SENSOR_SCALING) {
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struct v4l2_format res;
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if (fmt != NULL) {
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res = *fmt;
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} else {
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res.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
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res.fmt.pix.width = width;
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}
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if (height > sensor_height / 2) {
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res.fmt.pix.height = height / 2;
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go->encoder_v_halve = 0;
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} else {
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res.fmt.pix.height = height;
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go->encoder_v_halve = 1;
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}
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call_all(&go->v4l2_dev, video, s_fmt, &res);
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} else {
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if (width <= sensor_width / 4) {
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go->encoder_h_halve = 1;
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go->encoder_v_halve = 1;
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go->encoder_subsample = 1;
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} else if (width <= sensor_width / 2) {
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go->encoder_h_halve = 1;
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go->encoder_v_halve = 1;
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go->encoder_subsample = 0;
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} else {
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go->encoder_h_halve = 0;
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go->encoder_v_halve = 0;
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go->encoder_subsample = 0;
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}
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}
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if (fmt == NULL)
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return 0;
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switch (fmt->fmt.pix.pixelformat) {
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case V4L2_PIX_FMT_MPEG:
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if (go->format == GO7007_FORMAT_MPEG1 ||
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go->format == GO7007_FORMAT_MPEG2 ||
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go->format == GO7007_FORMAT_MPEG4)
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break;
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go->format = GO7007_FORMAT_MPEG1;
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go->pali = 0;
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go->aspect_ratio = GO7007_RATIO_1_1;
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go->gop_size = go->sensor_framerate / 1000;
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go->ipb = 0;
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go->closed_gop = 1;
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go->repeat_seqhead = 1;
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go->seq_header_enable = 1;
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go->gop_header_enable = 1;
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go->dvd_mode = 0;
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break;
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/* Backwards compatibility only! */
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case V4L2_PIX_FMT_MPEG4:
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if (go->format == GO7007_FORMAT_MPEG4)
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break;
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go->format = GO7007_FORMAT_MPEG4;
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go->pali = 0xf5;
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go->aspect_ratio = GO7007_RATIO_1_1;
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go->gop_size = go->sensor_framerate / 1000;
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go->ipb = 0;
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go->closed_gop = 1;
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go->repeat_seqhead = 1;
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go->seq_header_enable = 1;
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go->gop_header_enable = 1;
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go->dvd_mode = 0;
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break;
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case V4L2_PIX_FMT_MJPEG:
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go->format = GO7007_FORMAT_MJPEG;
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go->pali = 0;
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go->aspect_ratio = GO7007_RATIO_1_1;
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go->gop_size = 0;
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go->ipb = 0;
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go->closed_gop = 0;
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go->repeat_seqhead = 0;
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go->seq_header_enable = 0;
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go->gop_header_enable = 0;
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go->dvd_mode = 0;
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break;
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}
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return 0;
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}
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#if 0
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static int clip_to_modet_map(struct go7007 *go, int region,
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struct v4l2_clip *clip_list)
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{
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struct v4l2_clip clip, *clip_ptr;
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int x, y, mbnum;
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/* Check if coordinates are OK and if any macroblocks are already
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* used by other regions (besides 0) */
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clip_ptr = clip_list;
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while (clip_ptr) {
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if (copy_from_user(&clip, clip_ptr, sizeof(clip)))
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return -EFAULT;
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if (clip.c.left < 0 || (clip.c.left & 0xF) ||
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clip.c.width <= 0 || (clip.c.width & 0xF))
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return -EINVAL;
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if (clip.c.left + clip.c.width > go->width)
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return -EINVAL;
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if (clip.c.top < 0 || (clip.c.top & 0xF) ||
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clip.c.height <= 0 || (clip.c.height & 0xF))
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return -EINVAL;
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if (clip.c.top + clip.c.height > go->height)
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return -EINVAL;
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for (y = 0; y < clip.c.height; y += 16)
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for (x = 0; x < clip.c.width; x += 16) {
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mbnum = (go->width >> 4) *
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((clip.c.top + y) >> 4) +
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((clip.c.left + x) >> 4);
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if (go->modet_map[mbnum] != 0 &&
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go->modet_map[mbnum] != region)
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return -EBUSY;
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}
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clip_ptr = clip.next;
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}
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/* Clear old region macroblocks */
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for (mbnum = 0; mbnum < 1624; ++mbnum)
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if (go->modet_map[mbnum] == region)
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go->modet_map[mbnum] = 0;
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/* Claim macroblocks in this list */
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clip_ptr = clip_list;
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while (clip_ptr) {
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if (copy_from_user(&clip, clip_ptr, sizeof(clip)))
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return -EFAULT;
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for (y = 0; y < clip.c.height; y += 16)
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for (x = 0; x < clip.c.width; x += 16) {
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mbnum = (go->width >> 4) *
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((clip.c.top + y) >> 4) +
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((clip.c.left + x) >> 4);
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go->modet_map[mbnum] = region;
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}
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clip_ptr = clip.next;
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}
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return 0;
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}
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#endif
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static int mpeg_query_ctrl(struct v4l2_queryctrl *ctrl)
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{
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static const u32 mpeg_ctrls[] = {
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V4L2_CID_MPEG_CLASS,
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V4L2_CID_MPEG_STREAM_TYPE,
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V4L2_CID_MPEG_VIDEO_ENCODING,
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V4L2_CID_MPEG_VIDEO_ASPECT,
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V4L2_CID_MPEG_VIDEO_GOP_SIZE,
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V4L2_CID_MPEG_VIDEO_GOP_CLOSURE,
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V4L2_CID_MPEG_VIDEO_BITRATE,
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0
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};
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static const u32 *ctrl_classes[] = {
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mpeg_ctrls,
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NULL
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};
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ctrl->id = v4l2_ctrl_next(ctrl_classes, ctrl->id);
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switch (ctrl->id) {
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case V4L2_CID_MPEG_CLASS:
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return v4l2_ctrl_query_fill(ctrl, 0, 0, 0, 0);
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case V4L2_CID_MPEG_STREAM_TYPE:
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return v4l2_ctrl_query_fill(ctrl,
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V4L2_MPEG_STREAM_TYPE_MPEG2_DVD,
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V4L2_MPEG_STREAM_TYPE_MPEG_ELEM, 1,
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V4L2_MPEG_STREAM_TYPE_MPEG_ELEM);
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case V4L2_CID_MPEG_VIDEO_ENCODING:
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return v4l2_ctrl_query_fill(ctrl,
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V4L2_MPEG_VIDEO_ENCODING_MPEG_1,
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V4L2_MPEG_VIDEO_ENCODING_MPEG_4, 1,
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V4L2_MPEG_VIDEO_ENCODING_MPEG_2);
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case V4L2_CID_MPEG_VIDEO_ASPECT:
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return v4l2_ctrl_query_fill(ctrl,
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V4L2_MPEG_VIDEO_ASPECT_1x1,
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V4L2_MPEG_VIDEO_ASPECT_16x9, 1,
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V4L2_MPEG_VIDEO_ASPECT_1x1);
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case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
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return v4l2_ctrl_query_fill(ctrl, 0, 34, 1, 15);
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case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE:
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return v4l2_ctrl_query_fill(ctrl, 0, 1, 1, 0);
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case V4L2_CID_MPEG_VIDEO_BITRATE:
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return v4l2_ctrl_query_fill(ctrl,
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64000,
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10000000, 1,
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1500000);
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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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static int mpeg_s_ctrl(struct v4l2_control *ctrl, struct go7007 *go)
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{
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/* pretty sure we can't change any of these while streaming */
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if (go->streaming)
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return -EBUSY;
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switch (ctrl->id) {
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case V4L2_CID_MPEG_STREAM_TYPE:
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switch (ctrl->value) {
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case V4L2_MPEG_STREAM_TYPE_MPEG2_DVD:
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go->format = GO7007_FORMAT_MPEG2;
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go->bitrate = 9800000;
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go->gop_size = 15;
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go->pali = 0x48;
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go->closed_gop = 1;
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go->repeat_seqhead = 0;
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go->seq_header_enable = 1;
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go->gop_header_enable = 1;
|
|
go->dvd_mode = 1;
|
|
break;
|
|
case V4L2_MPEG_STREAM_TYPE_MPEG_ELEM:
|
|
/* todo: */
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
break;
|
|
case V4L2_CID_MPEG_VIDEO_ENCODING:
|
|
switch (ctrl->value) {
|
|
case V4L2_MPEG_VIDEO_ENCODING_MPEG_1:
|
|
go->format = GO7007_FORMAT_MPEG1;
|
|
go->pali = 0;
|
|
break;
|
|
case V4L2_MPEG_VIDEO_ENCODING_MPEG_2:
|
|
go->format = GO7007_FORMAT_MPEG2;
|
|
/*if (mpeg->pali >> 24 == 2)
|
|
go->pali = mpeg->pali & 0xff;
|
|
else*/
|
|
go->pali = 0x48;
|
|
break;
|
|
case V4L2_MPEG_VIDEO_ENCODING_MPEG_4:
|
|
go->format = GO7007_FORMAT_MPEG4;
|
|
/*if (mpeg->pali >> 24 == 4)
|
|
go->pali = mpeg->pali & 0xff;
|
|
else*/
|
|
go->pali = 0xf5;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
go->gop_header_enable =
|
|
/*mpeg->flags & GO7007_MPEG_OMIT_GOP_HEADER
|
|
? 0 :*/ 1;
|
|
/*if (mpeg->flags & GO7007_MPEG_REPEAT_SEQHEADER)
|
|
go->repeat_seqhead = 1;
|
|
else*/
|
|
go->repeat_seqhead = 0;
|
|
go->dvd_mode = 0;
|
|
break;
|
|
case V4L2_CID_MPEG_VIDEO_ASPECT:
|
|
if (go->format == GO7007_FORMAT_MJPEG)
|
|
return -EINVAL;
|
|
switch (ctrl->value) {
|
|
case V4L2_MPEG_VIDEO_ASPECT_1x1:
|
|
go->aspect_ratio = GO7007_RATIO_1_1;
|
|
break;
|
|
case V4L2_MPEG_VIDEO_ASPECT_4x3:
|
|
go->aspect_ratio = GO7007_RATIO_4_3;
|
|
break;
|
|
case V4L2_MPEG_VIDEO_ASPECT_16x9:
|
|
go->aspect_ratio = GO7007_RATIO_16_9;
|
|
break;
|
|
case V4L2_MPEG_VIDEO_ASPECT_221x100:
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
break;
|
|
case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
|
|
if (ctrl->value < 0 || ctrl->value > 34)
|
|
return -EINVAL;
|
|
go->gop_size = ctrl->value;
|
|
break;
|
|
case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE:
|
|
if (ctrl->value != 0 && ctrl->value != 1)
|
|
return -EINVAL;
|
|
go->closed_gop = ctrl->value;
|
|
break;
|
|
case V4L2_CID_MPEG_VIDEO_BITRATE:
|
|
/* Upper bound is kind of arbitrary here */
|
|
if (ctrl->value < 64000 || ctrl->value > 10000000)
|
|
return -EINVAL;
|
|
go->bitrate = ctrl->value;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mpeg_g_ctrl(struct v4l2_control *ctrl, struct go7007 *go)
|
|
{
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_MPEG_STREAM_TYPE:
|
|
if (go->dvd_mode)
|
|
ctrl->value = V4L2_MPEG_STREAM_TYPE_MPEG2_DVD;
|
|
else
|
|
ctrl->value = V4L2_MPEG_STREAM_TYPE_MPEG_ELEM;
|
|
break;
|
|
case V4L2_CID_MPEG_VIDEO_ENCODING:
|
|
switch (go->format) {
|
|
case GO7007_FORMAT_MPEG1:
|
|
ctrl->value = V4L2_MPEG_VIDEO_ENCODING_MPEG_1;
|
|
break;
|
|
case GO7007_FORMAT_MPEG2:
|
|
ctrl->value = V4L2_MPEG_VIDEO_ENCODING_MPEG_2;
|
|
break;
|
|
case GO7007_FORMAT_MPEG4:
|
|
ctrl->value = V4L2_MPEG_VIDEO_ENCODING_MPEG_4;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
break;
|
|
case V4L2_CID_MPEG_VIDEO_ASPECT:
|
|
switch (go->aspect_ratio) {
|
|
case GO7007_RATIO_1_1:
|
|
ctrl->value = V4L2_MPEG_VIDEO_ASPECT_1x1;
|
|
break;
|
|
case GO7007_RATIO_4_3:
|
|
ctrl->value = V4L2_MPEG_VIDEO_ASPECT_4x3;
|
|
break;
|
|
case GO7007_RATIO_16_9:
|
|
ctrl->value = V4L2_MPEG_VIDEO_ASPECT_16x9;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
break;
|
|
case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
|
|
ctrl->value = go->gop_size;
|
|
break;
|
|
case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE:
|
|
ctrl->value = go->closed_gop;
|
|
break;
|
|
case V4L2_CID_MPEG_VIDEO_BITRATE:
|
|
ctrl->value = go->bitrate;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_querycap(struct file *file, void *priv,
|
|
struct v4l2_capability *cap)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
|
|
strlcpy(cap->driver, "go7007", sizeof(cap->driver));
|
|
strlcpy(cap->card, go->name, sizeof(cap->card));
|
|
#if 0
|
|
strlcpy(cap->bus_info, dev_name(&dev->udev->dev), sizeof(cap->bus_info));
|
|
#endif
|
|
|
|
cap->version = KERNEL_VERSION(0, 9, 8);
|
|
|
|
cap->capabilities = V4L2_CAP_VIDEO_CAPTURE |
|
|
V4L2_CAP_STREAMING; /* | V4L2_CAP_AUDIO; */
|
|
|
|
if (go->board_info->flags & GO7007_BOARD_HAS_TUNER)
|
|
cap->capabilities |= V4L2_CAP_TUNER;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_fmtdesc *fmt)
|
|
{
|
|
char *desc = NULL;
|
|
|
|
switch (fmt->index) {
|
|
case 0:
|
|
fmt->pixelformat = V4L2_PIX_FMT_MJPEG;
|
|
desc = "Motion-JPEG";
|
|
break;
|
|
case 1:
|
|
fmt->pixelformat = V4L2_PIX_FMT_MPEG;
|
|
desc = "MPEG1/MPEG2/MPEG4";
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
fmt->flags = V4L2_FMT_FLAG_COMPRESSED;
|
|
|
|
strncpy(fmt->description, desc, sizeof(fmt->description));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_format *fmt)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
|
|
fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
fmt->fmt.pix.width = go->width;
|
|
fmt->fmt.pix.height = go->height;
|
|
fmt->fmt.pix.pixelformat = (go->format == GO7007_FORMAT_MJPEG) ?
|
|
V4L2_PIX_FMT_MJPEG : V4L2_PIX_FMT_MPEG;
|
|
fmt->fmt.pix.field = V4L2_FIELD_NONE;
|
|
fmt->fmt.pix.bytesperline = 0;
|
|
fmt->fmt.pix.sizeimage = GO7007_BUF_SIZE;
|
|
fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_format *fmt)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
|
|
return set_capture_size(go, fmt, 1);
|
|
}
|
|
|
|
static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_format *fmt)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
|
|
if (go->streaming)
|
|
return -EBUSY;
|
|
|
|
return set_capture_size(go, fmt, 0);
|
|
}
|
|
|
|
static int vidioc_reqbufs(struct file *file, void *priv,
|
|
struct v4l2_requestbuffers *req)
|
|
{
|
|
struct go7007_file *gofh = priv;
|
|
struct go7007 *go = gofh->go;
|
|
int retval = -EBUSY;
|
|
unsigned int count, i;
|
|
|
|
if (go->streaming)
|
|
return retval;
|
|
|
|
if (req->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
|
|
req->memory != V4L2_MEMORY_MMAP)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&gofh->lock);
|
|
for (i = 0; i < gofh->buf_count; ++i)
|
|
if (gofh->bufs[i].mapped > 0)
|
|
goto unlock_and_return;
|
|
|
|
mutex_lock(&go->hw_lock);
|
|
if (go->in_use > 0 && gofh->buf_count == 0) {
|
|
mutex_unlock(&go->hw_lock);
|
|
goto unlock_and_return;
|
|
}
|
|
|
|
if (gofh->buf_count > 0)
|
|
kfree(gofh->bufs);
|
|
|
|
retval = -ENOMEM;
|
|
count = req->count;
|
|
if (count > 0) {
|
|
if (count < 2)
|
|
count = 2;
|
|
if (count > 32)
|
|
count = 32;
|
|
|
|
gofh->bufs = kcalloc(count, sizeof(struct go7007_buffer),
|
|
GFP_KERNEL);
|
|
|
|
if (!gofh->bufs) {
|
|
mutex_unlock(&go->hw_lock);
|
|
goto unlock_and_return;
|
|
}
|
|
|
|
for (i = 0; i < count; ++i) {
|
|
gofh->bufs[i].go = go;
|
|
gofh->bufs[i].index = i;
|
|
gofh->bufs[i].state = BUF_STATE_IDLE;
|
|
gofh->bufs[i].mapped = 0;
|
|
}
|
|
|
|
go->in_use = 1;
|
|
} else {
|
|
go->in_use = 0;
|
|
}
|
|
|
|
gofh->buf_count = count;
|
|
mutex_unlock(&go->hw_lock);
|
|
mutex_unlock(&gofh->lock);
|
|
|
|
memset(req, 0, sizeof(*req));
|
|
|
|
req->count = count;
|
|
req->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
req->memory = V4L2_MEMORY_MMAP;
|
|
|
|
return 0;
|
|
|
|
unlock_and_return:
|
|
mutex_unlock(&gofh->lock);
|
|
return retval;
|
|
}
|
|
|
|
static int vidioc_querybuf(struct file *file, void *priv,
|
|
struct v4l2_buffer *buf)
|
|
{
|
|
struct go7007_file *gofh = priv;
|
|
int retval = -EINVAL;
|
|
unsigned int index;
|
|
|
|
if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return retval;
|
|
|
|
index = buf->index;
|
|
|
|
mutex_lock(&gofh->lock);
|
|
if (index >= gofh->buf_count)
|
|
goto unlock_and_return;
|
|
|
|
memset(buf, 0, sizeof(*buf));
|
|
buf->index = index;
|
|
buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
switch (gofh->bufs[index].state) {
|
|
case BUF_STATE_QUEUED:
|
|
buf->flags = V4L2_BUF_FLAG_QUEUED;
|
|
break;
|
|
case BUF_STATE_DONE:
|
|
buf->flags = V4L2_BUF_FLAG_DONE;
|
|
break;
|
|
default:
|
|
buf->flags = 0;
|
|
}
|
|
|
|
if (gofh->bufs[index].mapped)
|
|
buf->flags |= V4L2_BUF_FLAG_MAPPED;
|
|
buf->memory = V4L2_MEMORY_MMAP;
|
|
buf->m.offset = index * GO7007_BUF_SIZE;
|
|
buf->length = GO7007_BUF_SIZE;
|
|
mutex_unlock(&gofh->lock);
|
|
|
|
return 0;
|
|
|
|
unlock_and_return:
|
|
mutex_unlock(&gofh->lock);
|
|
return retval;
|
|
}
|
|
|
|
static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
|
|
{
|
|
struct go7007_file *gofh = priv;
|
|
struct go7007 *go = gofh->go;
|
|
struct go7007_buffer *gobuf;
|
|
unsigned long flags;
|
|
int retval = -EINVAL;
|
|
int ret;
|
|
|
|
if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
|
|
buf->memory != V4L2_MEMORY_MMAP)
|
|
return retval;
|
|
|
|
mutex_lock(&gofh->lock);
|
|
if (buf->index < 0 || buf->index >= gofh->buf_count)
|
|
goto unlock_and_return;
|
|
|
|
gobuf = &gofh->bufs[buf->index];
|
|
if (!gobuf->mapped)
|
|
goto unlock_and_return;
|
|
|
|
retval = -EBUSY;
|
|
if (gobuf->state != BUF_STATE_IDLE)
|
|
goto unlock_and_return;
|
|
|
|
/* offset will be 0 until we really support USERPTR streaming */
|
|
gobuf->offset = gobuf->user_addr & ~PAGE_MASK;
|
|
gobuf->bytesused = 0;
|
|
gobuf->frame_offset = 0;
|
|
gobuf->modet_active = 0;
|
|
if (gobuf->offset > 0)
|
|
gobuf->page_count = GO7007_BUF_PAGES + 1;
|
|
else
|
|
gobuf->page_count = GO7007_BUF_PAGES;
|
|
|
|
retval = -ENOMEM;
|
|
down_read(¤t->mm->mmap_sem);
|
|
ret = get_user_pages(current, current->mm,
|
|
gobuf->user_addr & PAGE_MASK, gobuf->page_count,
|
|
1, 1, gobuf->pages, NULL);
|
|
up_read(¤t->mm->mmap_sem);
|
|
|
|
if (ret != gobuf->page_count) {
|
|
int i;
|
|
for (i = 0; i < ret; ++i)
|
|
page_cache_release(gobuf->pages[i]);
|
|
gobuf->page_count = 0;
|
|
goto unlock_and_return;
|
|
}
|
|
|
|
gobuf->state = BUF_STATE_QUEUED;
|
|
spin_lock_irqsave(&go->spinlock, flags);
|
|
list_add_tail(&gobuf->stream, &go->stream);
|
|
spin_unlock_irqrestore(&go->spinlock, flags);
|
|
mutex_unlock(&gofh->lock);
|
|
|
|
return 0;
|
|
|
|
unlock_and_return:
|
|
mutex_unlock(&gofh->lock);
|
|
return retval;
|
|
}
|
|
|
|
|
|
static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
|
|
{
|
|
struct go7007_file *gofh = priv;
|
|
struct go7007 *go = gofh->go;
|
|
struct go7007_buffer *gobuf;
|
|
int retval = -EINVAL;
|
|
unsigned long flags;
|
|
u32 frame_type_flag;
|
|
DEFINE_WAIT(wait);
|
|
|
|
if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return retval;
|
|
if (buf->memory != V4L2_MEMORY_MMAP)
|
|
return retval;
|
|
|
|
mutex_lock(&gofh->lock);
|
|
if (list_empty(&go->stream))
|
|
goto unlock_and_return;
|
|
gobuf = list_entry(go->stream.next,
|
|
struct go7007_buffer, stream);
|
|
|
|
retval = -EAGAIN;
|
|
if (gobuf->state != BUF_STATE_DONE &&
|
|
!(file->f_flags & O_NONBLOCK)) {
|
|
for (;;) {
|
|
prepare_to_wait(&go->frame_waitq, &wait,
|
|
TASK_INTERRUPTIBLE);
|
|
if (gobuf->state == BUF_STATE_DONE)
|
|
break;
|
|
if (signal_pending(current)) {
|
|
retval = -ERESTARTSYS;
|
|
break;
|
|
}
|
|
schedule();
|
|
}
|
|
finish_wait(&go->frame_waitq, &wait);
|
|
}
|
|
if (gobuf->state != BUF_STATE_DONE)
|
|
goto unlock_and_return;
|
|
|
|
spin_lock_irqsave(&go->spinlock, flags);
|
|
deactivate_buffer(gobuf);
|
|
spin_unlock_irqrestore(&go->spinlock, flags);
|
|
frame_type_flag = get_frame_type_flag(gobuf, go->format);
|
|
gobuf->state = BUF_STATE_IDLE;
|
|
|
|
memset(buf, 0, sizeof(*buf));
|
|
buf->index = gobuf->index;
|
|
buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
buf->bytesused = gobuf->bytesused;
|
|
buf->flags = V4L2_BUF_FLAG_MAPPED | frame_type_flag;
|
|
buf->field = V4L2_FIELD_NONE;
|
|
buf->timestamp = gobuf->timestamp;
|
|
buf->sequence = gobuf->seq;
|
|
buf->memory = V4L2_MEMORY_MMAP;
|
|
buf->m.offset = gobuf->index * GO7007_BUF_SIZE;
|
|
buf->length = GO7007_BUF_SIZE;
|
|
buf->reserved = gobuf->modet_active;
|
|
|
|
mutex_unlock(&gofh->lock);
|
|
return 0;
|
|
|
|
unlock_and_return:
|
|
mutex_unlock(&gofh->lock);
|
|
return retval;
|
|
}
|
|
|
|
static int vidioc_streamon(struct file *file, void *priv,
|
|
enum v4l2_buf_type type)
|
|
{
|
|
struct go7007_file *gofh = priv;
|
|
struct go7007 *go = gofh->go;
|
|
int retval = 0;
|
|
|
|
if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&gofh->lock);
|
|
mutex_lock(&go->hw_lock);
|
|
|
|
if (!go->streaming) {
|
|
go->streaming = 1;
|
|
go->next_seq = 0;
|
|
go->active_buf = NULL;
|
|
if (go7007_start_encoder(go) < 0)
|
|
retval = -EIO;
|
|
else
|
|
retval = 0;
|
|
}
|
|
mutex_unlock(&go->hw_lock);
|
|
mutex_unlock(&gofh->lock);
|
|
|
|
return retval;
|
|
}
|
|
|
|
static int vidioc_streamoff(struct file *file, void *priv,
|
|
enum v4l2_buf_type type)
|
|
{
|
|
struct go7007_file *gofh = priv;
|
|
struct go7007 *go = gofh->go;
|
|
|
|
if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
mutex_lock(&gofh->lock);
|
|
go7007_streamoff(go);
|
|
mutex_unlock(&gofh->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_queryctrl(struct file *file, void *priv,
|
|
struct v4l2_queryctrl *query)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
int id = query->id;
|
|
|
|
if (0 == call_all(&go->v4l2_dev, core, queryctrl, query))
|
|
return 0;
|
|
|
|
query->id = id;
|
|
return mpeg_query_ctrl(query);
|
|
}
|
|
|
|
static int vidioc_g_ctrl(struct file *file, void *priv,
|
|
struct v4l2_control *ctrl)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
|
|
if (0 == call_all(&go->v4l2_dev, core, g_ctrl, ctrl))
|
|
return 0;
|
|
|
|
return mpeg_g_ctrl(ctrl, go);
|
|
}
|
|
|
|
static int vidioc_s_ctrl(struct file *file, void *priv,
|
|
struct v4l2_control *ctrl)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
|
|
if (0 == call_all(&go->v4l2_dev, core, s_ctrl, ctrl))
|
|
return 0;
|
|
|
|
return mpeg_s_ctrl(ctrl, go);
|
|
}
|
|
|
|
static int vidioc_g_parm(struct file *filp, void *priv,
|
|
struct v4l2_streamparm *parm)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
struct v4l2_fract timeperframe = {
|
|
.numerator = 1001 * go->fps_scale,
|
|
.denominator = go->sensor_framerate,
|
|
};
|
|
|
|
if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
|
|
parm->parm.capture.capability |= V4L2_CAP_TIMEPERFRAME;
|
|
parm->parm.capture.timeperframe = timeperframe;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_parm(struct file *filp, void *priv,
|
|
struct v4l2_streamparm *parm)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
unsigned int n, d;
|
|
|
|
if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
if (parm->parm.capture.capturemode != 0)
|
|
return -EINVAL;
|
|
|
|
n = go->sensor_framerate *
|
|
parm->parm.capture.timeperframe.numerator;
|
|
d = 1001 * parm->parm.capture.timeperframe.denominator;
|
|
if (n != 0 && d != 0 && n > d)
|
|
go->fps_scale = (n + d/2) / d;
|
|
else
|
|
go->fps_scale = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* VIDIOC_ENUMSTD on go7007 were used for enumberating the supported fps and
|
|
its resolution, when the device is not connected to TV.
|
|
This were an API abuse, probably used by the lack of specific IOCTL's to
|
|
enumberate it, by the time the driver were written.
|
|
|
|
However, since kernel 2.6.19, two new ioctls (VIDIOC_ENUM_FRAMEINTERVALS
|
|
and VIDIOC_ENUM_FRAMESIZES) were added for this purpose.
|
|
|
|
The two functions bellow implements the newer ioctls
|
|
*/
|
|
static int vidioc_enum_framesizes(struct file *filp, void *priv,
|
|
struct v4l2_frmsizeenum *fsize)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
|
|
/* Return -EINVAL, if it is a TV board */
|
|
if ((go->board_info->flags & GO7007_BOARD_HAS_TUNER) ||
|
|
(go->board_info->sensor_flags & GO7007_SENSOR_TV))
|
|
return -EINVAL;
|
|
|
|
if (fsize->index > 0)
|
|
return -EINVAL;
|
|
|
|
fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
|
|
fsize->discrete.width = go->board_info->sensor_width;
|
|
fsize->discrete.height = go->board_info->sensor_height;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_enum_frameintervals(struct file *filp, void *priv,
|
|
struct v4l2_frmivalenum *fival)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
|
|
/* Return -EINVAL, if it is a TV board */
|
|
if ((go->board_info->flags & GO7007_BOARD_HAS_TUNER) ||
|
|
(go->board_info->sensor_flags & GO7007_SENSOR_TV))
|
|
return -EINVAL;
|
|
|
|
if (fival->index > 0)
|
|
return -EINVAL;
|
|
|
|
fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
|
|
fival->discrete.numerator = 1001;
|
|
fival->discrete.denominator = go->board_info->sensor_framerate;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *std)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
|
|
switch (go->standard) {
|
|
case GO7007_STD_NTSC:
|
|
*std = V4L2_STD_NTSC;
|
|
break;
|
|
case GO7007_STD_PAL:
|
|
*std = V4L2_STD_PAL;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *std)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
|
|
if (go->streaming)
|
|
return -EBUSY;
|
|
|
|
if (!(go->board_info->sensor_flags & GO7007_SENSOR_TV) && *std != 0)
|
|
return -EINVAL;
|
|
|
|
if (*std == 0)
|
|
return -EINVAL;
|
|
|
|
if ((go->board_info->flags & GO7007_BOARD_HAS_TUNER) &&
|
|
go->input == go->board_info->num_inputs - 1) {
|
|
if (!go->i2c_adapter_online)
|
|
return -EIO;
|
|
if (call_all(&go->v4l2_dev, core, s_std, *std) < 0)
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (*std & V4L2_STD_NTSC) {
|
|
go->standard = GO7007_STD_NTSC;
|
|
go->sensor_framerate = 30000;
|
|
} else if (*std & V4L2_STD_PAL) {
|
|
go->standard = GO7007_STD_PAL;
|
|
go->sensor_framerate = 25025;
|
|
} else if (*std & V4L2_STD_SECAM) {
|
|
go->standard = GO7007_STD_PAL;
|
|
go->sensor_framerate = 25025;
|
|
} else
|
|
return -EINVAL;
|
|
|
|
call_all(&go->v4l2_dev, core, s_std, *std);
|
|
set_capture_size(go, NULL, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *std)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
|
|
if ((go->board_info->flags & GO7007_BOARD_HAS_TUNER) &&
|
|
go->input == go->board_info->num_inputs - 1) {
|
|
if (!go->i2c_adapter_online)
|
|
return -EIO;
|
|
return call_all(&go->v4l2_dev, video, querystd, std);
|
|
} else if (go->board_info->sensor_flags & GO7007_SENSOR_TV)
|
|
*std = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM;
|
|
else
|
|
*std = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_enum_input(struct file *file, void *priv,
|
|
struct v4l2_input *inp)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
|
|
if (inp->index >= go->board_info->num_inputs)
|
|
return -EINVAL;
|
|
|
|
strncpy(inp->name, go->board_info->inputs[inp->index].name,
|
|
sizeof(inp->name));
|
|
|
|
/* If this board has a tuner, it will be the last input */
|
|
if ((go->board_info->flags & GO7007_BOARD_HAS_TUNER) &&
|
|
inp->index == go->board_info->num_inputs - 1)
|
|
inp->type = V4L2_INPUT_TYPE_TUNER;
|
|
else
|
|
inp->type = V4L2_INPUT_TYPE_CAMERA;
|
|
|
|
inp->audioset = 0;
|
|
inp->tuner = 0;
|
|
if (go->board_info->sensor_flags & GO7007_SENSOR_TV)
|
|
inp->std = V4L2_STD_NTSC | V4L2_STD_PAL |
|
|
V4L2_STD_SECAM;
|
|
else
|
|
inp->std = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int vidioc_g_input(struct file *file, void *priv, unsigned int *input)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
|
|
*input = go->input;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_input(struct file *file, void *priv, unsigned int input)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
|
|
if (input >= go->board_info->num_inputs)
|
|
return -EINVAL;
|
|
if (go->streaming)
|
|
return -EBUSY;
|
|
|
|
go->input = input;
|
|
|
|
return call_all(&go->v4l2_dev, video, s_routing, input, 0, 0);
|
|
}
|
|
|
|
static int vidioc_g_tuner(struct file *file, void *priv,
|
|
struct v4l2_tuner *t)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
|
|
if (!(go->board_info->flags & GO7007_BOARD_HAS_TUNER))
|
|
return -EINVAL;
|
|
if (t->index != 0)
|
|
return -EINVAL;
|
|
if (!go->i2c_adapter_online)
|
|
return -EIO;
|
|
|
|
return call_all(&go->v4l2_dev, tuner, g_tuner, t);
|
|
}
|
|
|
|
static int vidioc_s_tuner(struct file *file, void *priv,
|
|
struct v4l2_tuner *t)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
|
|
if (!(go->board_info->flags & GO7007_BOARD_HAS_TUNER))
|
|
return -EINVAL;
|
|
if (t->index != 0)
|
|
return -EINVAL;
|
|
if (!go->i2c_adapter_online)
|
|
return -EIO;
|
|
|
|
switch (go->board_id) {
|
|
case GO7007_BOARDID_PX_TV402U_NA:
|
|
case GO7007_BOARDID_PX_TV402U_JP:
|
|
/* No selectable options currently */
|
|
if (t->audmode != V4L2_TUNER_MODE_STEREO)
|
|
return -EINVAL;
|
|
break;
|
|
}
|
|
|
|
return call_all(&go->v4l2_dev, tuner, s_tuner, t);
|
|
}
|
|
|
|
static int vidioc_g_frequency(struct file *file, void *priv,
|
|
struct v4l2_frequency *f)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
|
|
if (!(go->board_info->flags & GO7007_BOARD_HAS_TUNER))
|
|
return -EINVAL;
|
|
if (!go->i2c_adapter_online)
|
|
return -EIO;
|
|
|
|
f->type = V4L2_TUNER_ANALOG_TV;
|
|
|
|
return call_all(&go->v4l2_dev, tuner, g_frequency, f);
|
|
}
|
|
|
|
static int vidioc_s_frequency(struct file *file, void *priv,
|
|
struct v4l2_frequency *f)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
|
|
if (!(go->board_info->flags & GO7007_BOARD_HAS_TUNER))
|
|
return -EINVAL;
|
|
if (!go->i2c_adapter_online)
|
|
return -EIO;
|
|
|
|
return call_all(&go->v4l2_dev, tuner, s_frequency, f);
|
|
}
|
|
|
|
static int vidioc_cropcap(struct file *file, void *priv,
|
|
struct v4l2_cropcap *cropcap)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
|
|
if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
|
|
/* These specify the raw input of the sensor */
|
|
switch (go->standard) {
|
|
case GO7007_STD_NTSC:
|
|
cropcap->bounds.top = 0;
|
|
cropcap->bounds.left = 0;
|
|
cropcap->bounds.width = 720;
|
|
cropcap->bounds.height = 480;
|
|
cropcap->defrect.top = 0;
|
|
cropcap->defrect.left = 0;
|
|
cropcap->defrect.width = 720;
|
|
cropcap->defrect.height = 480;
|
|
break;
|
|
case GO7007_STD_PAL:
|
|
cropcap->bounds.top = 0;
|
|
cropcap->bounds.left = 0;
|
|
cropcap->bounds.width = 720;
|
|
cropcap->bounds.height = 576;
|
|
cropcap->defrect.top = 0;
|
|
cropcap->defrect.left = 0;
|
|
cropcap->defrect.width = 720;
|
|
cropcap->defrect.height = 576;
|
|
break;
|
|
case GO7007_STD_OTHER:
|
|
cropcap->bounds.top = 0;
|
|
cropcap->bounds.left = 0;
|
|
cropcap->bounds.width = go->board_info->sensor_width;
|
|
cropcap->bounds.height = go->board_info->sensor_height;
|
|
cropcap->defrect.top = 0;
|
|
cropcap->defrect.left = 0;
|
|
cropcap->defrect.width = go->board_info->sensor_width;
|
|
cropcap->defrect.height = go->board_info->sensor_height;
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_g_crop(struct file *file, void *priv, struct v4l2_crop *crop)
|
|
{
|
|
struct go7007 *go = ((struct go7007_file *) priv)->go;
|
|
|
|
if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
|
|
crop->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
/* These specify the raw input of the sensor */
|
|
switch (go->standard) {
|
|
case GO7007_STD_NTSC:
|
|
crop->c.top = 0;
|
|
crop->c.left = 0;
|
|
crop->c.width = 720;
|
|
crop->c.height = 480;
|
|
break;
|
|
case GO7007_STD_PAL:
|
|
crop->c.top = 0;
|
|
crop->c.left = 0;
|
|
crop->c.width = 720;
|
|
crop->c.height = 576;
|
|
break;
|
|
case GO7007_STD_OTHER:
|
|
crop->c.top = 0;
|
|
crop->c.left = 0;
|
|
crop->c.width = go->board_info->sensor_width;
|
|
crop->c.height = go->board_info->sensor_height;
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* FIXME: vidioc_s_crop is not really implemented!!!
|
|
*/
|
|
static int vidioc_s_crop(struct file *file, void *priv, struct v4l2_crop *crop)
|
|
{
|
|
if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_g_jpegcomp(struct file *file, void *priv,
|
|
struct v4l2_jpegcompression *params)
|
|
{
|
|
memset(params, 0, sizeof(*params));
|
|
params->quality = 50; /* ?? */
|
|
params->jpeg_markers = V4L2_JPEG_MARKER_DHT |
|
|
V4L2_JPEG_MARKER_DQT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_jpegcomp(struct file *file, void *priv,
|
|
struct v4l2_jpegcompression *params)
|
|
{
|
|
if (params->quality != 50 ||
|
|
params->jpeg_markers != (V4L2_JPEG_MARKER_DHT |
|
|
V4L2_JPEG_MARKER_DQT))
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* FIXME:
|
|
Those ioctls are private, and not needed, since several standard
|
|
extended controls already provide streaming control.
|
|
So, those ioctls should be converted into vidioc_g_ext_ctrls()
|
|
and vidioc_s_ext_ctrls()
|
|
*/
|
|
|
|
#if 0
|
|
/* Temporary ioctls for controlling compression characteristics */
|
|
case GO7007IOC_S_BITRATE:
|
|
{
|
|
int *bitrate = arg;
|
|
|
|
if (go->streaming)
|
|
return -EINVAL;
|
|
/* Upper bound is kind of arbitrary here */
|
|
if (*bitrate < 64000 || *bitrate > 10000000)
|
|
return -EINVAL;
|
|
go->bitrate = *bitrate;
|
|
return 0;
|
|
}
|
|
case GO7007IOC_G_BITRATE:
|
|
{
|
|
int *bitrate = arg;
|
|
|
|
*bitrate = go->bitrate;
|
|
return 0;
|
|
}
|
|
case GO7007IOC_S_COMP_PARAMS:
|
|
{
|
|
struct go7007_comp_params *comp = arg;
|
|
|
|
if (go->format == GO7007_FORMAT_MJPEG)
|
|
return -EINVAL;
|
|
if (comp->gop_size > 0)
|
|
go->gop_size = comp->gop_size;
|
|
else
|
|
go->gop_size = go->sensor_framerate / 1000;
|
|
if (go->gop_size != 15)
|
|
go->dvd_mode = 0;
|
|
/*go->ipb = comp->max_b_frames > 0;*/ /* completely untested */
|
|
if (go->board_info->sensor_flags & GO7007_SENSOR_TV) {
|
|
switch (comp->aspect_ratio) {
|
|
case GO7007_ASPECT_RATIO_4_3_NTSC:
|
|
case GO7007_ASPECT_RATIO_4_3_PAL:
|
|
go->aspect_ratio = GO7007_RATIO_4_3;
|
|
break;
|
|
case GO7007_ASPECT_RATIO_16_9_NTSC:
|
|
case GO7007_ASPECT_RATIO_16_9_PAL:
|
|
go->aspect_ratio = GO7007_RATIO_16_9;
|
|
break;
|
|
default:
|
|
go->aspect_ratio = GO7007_RATIO_1_1;
|
|
break;
|
|
}
|
|
}
|
|
if (comp->flags & GO7007_COMP_OMIT_SEQ_HEADER) {
|
|
go->dvd_mode = 0;
|
|
go->seq_header_enable = 0;
|
|
} else {
|
|
go->seq_header_enable = 1;
|
|
}
|
|
/* fall-through */
|
|
}
|
|
case GO7007IOC_G_COMP_PARAMS:
|
|
{
|
|
struct go7007_comp_params *comp = arg;
|
|
|
|
if (go->format == GO7007_FORMAT_MJPEG)
|
|
return -EINVAL;
|
|
memset(comp, 0, sizeof(*comp));
|
|
comp->gop_size = go->gop_size;
|
|
comp->max_b_frames = go->ipb ? 2 : 0;
|
|
switch (go->aspect_ratio) {
|
|
case GO7007_RATIO_4_3:
|
|
if (go->standard == GO7007_STD_NTSC)
|
|
comp->aspect_ratio =
|
|
GO7007_ASPECT_RATIO_4_3_NTSC;
|
|
else
|
|
comp->aspect_ratio =
|
|
GO7007_ASPECT_RATIO_4_3_PAL;
|
|
break;
|
|
case GO7007_RATIO_16_9:
|
|
if (go->standard == GO7007_STD_NTSC)
|
|
comp->aspect_ratio =
|
|
GO7007_ASPECT_RATIO_16_9_NTSC;
|
|
else
|
|
comp->aspect_ratio =
|
|
GO7007_ASPECT_RATIO_16_9_PAL;
|
|
break;
|
|
default:
|
|
comp->aspect_ratio = GO7007_ASPECT_RATIO_1_1;
|
|
break;
|
|
}
|
|
if (go->closed_gop)
|
|
comp->flags |= GO7007_COMP_CLOSED_GOP;
|
|
if (!go->seq_header_enable)
|
|
comp->flags |= GO7007_COMP_OMIT_SEQ_HEADER;
|
|
return 0;
|
|
}
|
|
case GO7007IOC_S_MPEG_PARAMS:
|
|
{
|
|
struct go7007_mpeg_params *mpeg = arg;
|
|
|
|
if (go->format != GO7007_FORMAT_MPEG1 &&
|
|
go->format != GO7007_FORMAT_MPEG2 &&
|
|
go->format != GO7007_FORMAT_MPEG4)
|
|
return -EINVAL;
|
|
|
|
if (mpeg->flags & GO7007_MPEG_FORCE_DVD_MODE) {
|
|
go->format = GO7007_FORMAT_MPEG2;
|
|
go->bitrate = 9800000;
|
|
go->gop_size = 15;
|
|
go->pali = 0x48;
|
|
go->closed_gop = 1;
|
|
go->repeat_seqhead = 0;
|
|
go->seq_header_enable = 1;
|
|
go->gop_header_enable = 1;
|
|
go->dvd_mode = 1;
|
|
} else {
|
|
switch (mpeg->mpeg_video_standard) {
|
|
case GO7007_MPEG_VIDEO_MPEG1:
|
|
go->format = GO7007_FORMAT_MPEG1;
|
|
go->pali = 0;
|
|
break;
|
|
case GO7007_MPEG_VIDEO_MPEG2:
|
|
go->format = GO7007_FORMAT_MPEG2;
|
|
if (mpeg->pali >> 24 == 2)
|
|
go->pali = mpeg->pali & 0xff;
|
|
else
|
|
go->pali = 0x48;
|
|
break;
|
|
case GO7007_MPEG_VIDEO_MPEG4:
|
|
go->format = GO7007_FORMAT_MPEG4;
|
|
if (mpeg->pali >> 24 == 4)
|
|
go->pali = mpeg->pali & 0xff;
|
|
else
|
|
go->pali = 0xf5;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
go->gop_header_enable =
|
|
mpeg->flags & GO7007_MPEG_OMIT_GOP_HEADER
|
|
? 0 : 1;
|
|
if (mpeg->flags & GO7007_MPEG_REPEAT_SEQHEADER)
|
|
go->repeat_seqhead = 1;
|
|
else
|
|
go->repeat_seqhead = 0;
|
|
go->dvd_mode = 0;
|
|
}
|
|
/* fall-through */
|
|
}
|
|
case GO7007IOC_G_MPEG_PARAMS:
|
|
{
|
|
struct go7007_mpeg_params *mpeg = arg;
|
|
|
|
memset(mpeg, 0, sizeof(*mpeg));
|
|
switch (go->format) {
|
|
case GO7007_FORMAT_MPEG1:
|
|
mpeg->mpeg_video_standard = GO7007_MPEG_VIDEO_MPEG1;
|
|
mpeg->pali = 0;
|
|
break;
|
|
case GO7007_FORMAT_MPEG2:
|
|
mpeg->mpeg_video_standard = GO7007_MPEG_VIDEO_MPEG2;
|
|
mpeg->pali = GO7007_MPEG_PROFILE(2, go->pali);
|
|
break;
|
|
case GO7007_FORMAT_MPEG4:
|
|
mpeg->mpeg_video_standard = GO7007_MPEG_VIDEO_MPEG4;
|
|
mpeg->pali = GO7007_MPEG_PROFILE(4, go->pali);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
if (!go->gop_header_enable)
|
|
mpeg->flags |= GO7007_MPEG_OMIT_GOP_HEADER;
|
|
if (go->repeat_seqhead)
|
|
mpeg->flags |= GO7007_MPEG_REPEAT_SEQHEADER;
|
|
if (go->dvd_mode)
|
|
mpeg->flags |= GO7007_MPEG_FORCE_DVD_MODE;
|
|
return 0;
|
|
}
|
|
case GO7007IOC_S_MD_PARAMS:
|
|
{
|
|
struct go7007_md_params *mdp = arg;
|
|
|
|
if (mdp->region > 3)
|
|
return -EINVAL;
|
|
if (mdp->trigger > 0) {
|
|
go->modet[mdp->region].pixel_threshold =
|
|
mdp->pixel_threshold >> 1;
|
|
go->modet[mdp->region].motion_threshold =
|
|
mdp->motion_threshold >> 1;
|
|
go->modet[mdp->region].mb_threshold =
|
|
mdp->trigger >> 1;
|
|
go->modet[mdp->region].enable = 1;
|
|
} else
|
|
go->modet[mdp->region].enable = 0;
|
|
/* fall-through */
|
|
}
|
|
case GO7007IOC_G_MD_PARAMS:
|
|
{
|
|
struct go7007_md_params *mdp = arg;
|
|
int region = mdp->region;
|
|
|
|
if (mdp->region > 3)
|
|
return -EINVAL;
|
|
memset(mdp, 0, sizeof(struct go7007_md_params));
|
|
mdp->region = region;
|
|
if (!go->modet[region].enable)
|
|
return 0;
|
|
mdp->pixel_threshold =
|
|
(go->modet[region].pixel_threshold << 1) + 1;
|
|
mdp->motion_threshold =
|
|
(go->modet[region].motion_threshold << 1) + 1;
|
|
mdp->trigger =
|
|
(go->modet[region].mb_threshold << 1) + 1;
|
|
return 0;
|
|
}
|
|
case GO7007IOC_S_MD_REGION:
|
|
{
|
|
struct go7007_md_region *region = arg;
|
|
|
|
if (region->region < 1 || region->region > 3)
|
|
return -EINVAL;
|
|
return clip_to_modet_map(go, region->region, region->clips);
|
|
}
|
|
#endif
|
|
|
|
static ssize_t go7007_read(struct file *file, char __user *data,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static void go7007_vm_open(struct vm_area_struct *vma)
|
|
{
|
|
struct go7007_buffer *gobuf = vma->vm_private_data;
|
|
|
|
++gobuf->mapped;
|
|
}
|
|
|
|
static void go7007_vm_close(struct vm_area_struct *vma)
|
|
{
|
|
struct go7007_buffer *gobuf = vma->vm_private_data;
|
|
unsigned long flags;
|
|
|
|
if (--gobuf->mapped == 0) {
|
|
spin_lock_irqsave(&gobuf->go->spinlock, flags);
|
|
deactivate_buffer(gobuf);
|
|
spin_unlock_irqrestore(&gobuf->go->spinlock, flags);
|
|
}
|
|
}
|
|
|
|
/* Copied from videobuf-dma-sg.c */
|
|
static int go7007_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
|
|
{
|
|
struct page *page;
|
|
|
|
page = alloc_page(GFP_USER | __GFP_DMA32);
|
|
if (!page)
|
|
return VM_FAULT_OOM;
|
|
clear_user_highpage(page, (unsigned long)vmf->virtual_address);
|
|
vmf->page = page;
|
|
return 0;
|
|
}
|
|
|
|
static struct vm_operations_struct go7007_vm_ops = {
|
|
.open = go7007_vm_open,
|
|
.close = go7007_vm_close,
|
|
.fault = go7007_vm_fault,
|
|
};
|
|
|
|
static int go7007_mmap(struct file *file, struct vm_area_struct *vma)
|
|
{
|
|
struct go7007_file *gofh = file->private_data;
|
|
unsigned int index;
|
|
|
|
if (gofh->go->status != STATUS_ONLINE)
|
|
return -EIO;
|
|
if (!(vma->vm_flags & VM_SHARED))
|
|
return -EINVAL; /* only support VM_SHARED mapping */
|
|
if (vma->vm_end - vma->vm_start != GO7007_BUF_SIZE)
|
|
return -EINVAL; /* must map exactly one full buffer */
|
|
mutex_lock(&gofh->lock);
|
|
index = vma->vm_pgoff / GO7007_BUF_PAGES;
|
|
if (index >= gofh->buf_count) {
|
|
mutex_unlock(&gofh->lock);
|
|
return -EINVAL; /* trying to map beyond requested buffers */
|
|
}
|
|
if (index * GO7007_BUF_PAGES != vma->vm_pgoff) {
|
|
mutex_unlock(&gofh->lock);
|
|
return -EINVAL; /* offset is not aligned on buffer boundary */
|
|
}
|
|
if (gofh->bufs[index].mapped > 0) {
|
|
mutex_unlock(&gofh->lock);
|
|
return -EBUSY;
|
|
}
|
|
gofh->bufs[index].mapped = 1;
|
|
gofh->bufs[index].user_addr = vma->vm_start;
|
|
vma->vm_ops = &go7007_vm_ops;
|
|
vma->vm_flags |= VM_DONTEXPAND;
|
|
vma->vm_flags &= ~VM_IO;
|
|
vma->vm_private_data = &gofh->bufs[index];
|
|
mutex_unlock(&gofh->lock);
|
|
return 0;
|
|
}
|
|
|
|
static unsigned int go7007_poll(struct file *file, poll_table *wait)
|
|
{
|
|
struct go7007_file *gofh = file->private_data;
|
|
struct go7007_buffer *gobuf;
|
|
|
|
if (list_empty(&gofh->go->stream))
|
|
return POLLERR;
|
|
gobuf = list_entry(gofh->go->stream.next, struct go7007_buffer, stream);
|
|
poll_wait(file, &gofh->go->frame_waitq, wait);
|
|
if (gobuf->state == BUF_STATE_DONE)
|
|
return POLLIN | POLLRDNORM;
|
|
return 0;
|
|
}
|
|
|
|
static void go7007_vfl_release(struct video_device *vfd)
|
|
{
|
|
struct go7007 *go = video_get_drvdata(vfd);
|
|
|
|
video_device_release(vfd);
|
|
if (--go->ref_count == 0)
|
|
kfree(go);
|
|
}
|
|
|
|
static struct v4l2_file_operations go7007_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = go7007_open,
|
|
.release = go7007_release,
|
|
.ioctl = video_ioctl2,
|
|
.read = go7007_read,
|
|
.mmap = go7007_mmap,
|
|
.poll = go7007_poll,
|
|
};
|
|
|
|
static const struct v4l2_ioctl_ops video_ioctl_ops = {
|
|
.vidioc_querycap = vidioc_querycap,
|
|
.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
|
|
.vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
|
|
.vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
|
|
.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
|
|
.vidioc_reqbufs = vidioc_reqbufs,
|
|
.vidioc_querybuf = vidioc_querybuf,
|
|
.vidioc_qbuf = vidioc_qbuf,
|
|
.vidioc_dqbuf = vidioc_dqbuf,
|
|
.vidioc_g_std = vidioc_g_std,
|
|
.vidioc_s_std = vidioc_s_std,
|
|
.vidioc_querystd = vidioc_querystd,
|
|
.vidioc_enum_input = vidioc_enum_input,
|
|
.vidioc_g_input = vidioc_g_input,
|
|
.vidioc_s_input = vidioc_s_input,
|
|
.vidioc_queryctrl = vidioc_queryctrl,
|
|
.vidioc_g_ctrl = vidioc_g_ctrl,
|
|
.vidioc_s_ctrl = vidioc_s_ctrl,
|
|
.vidioc_streamon = vidioc_streamon,
|
|
.vidioc_streamoff = vidioc_streamoff,
|
|
.vidioc_g_tuner = vidioc_g_tuner,
|
|
.vidioc_s_tuner = vidioc_s_tuner,
|
|
.vidioc_g_frequency = vidioc_g_frequency,
|
|
.vidioc_s_frequency = vidioc_s_frequency,
|
|
.vidioc_g_parm = vidioc_g_parm,
|
|
.vidioc_s_parm = vidioc_s_parm,
|
|
.vidioc_enum_framesizes = vidioc_enum_framesizes,
|
|
.vidioc_enum_frameintervals = vidioc_enum_frameintervals,
|
|
.vidioc_cropcap = vidioc_cropcap,
|
|
.vidioc_g_crop = vidioc_g_crop,
|
|
.vidioc_s_crop = vidioc_s_crop,
|
|
.vidioc_g_jpegcomp = vidioc_g_jpegcomp,
|
|
.vidioc_s_jpegcomp = vidioc_s_jpegcomp,
|
|
};
|
|
|
|
static struct video_device go7007_template = {
|
|
.name = "go7007",
|
|
.fops = &go7007_fops,
|
|
.release = go7007_vfl_release,
|
|
.ioctl_ops = &video_ioctl_ops,
|
|
.tvnorms = V4L2_STD_ALL,
|
|
.current_norm = V4L2_STD_NTSC,
|
|
};
|
|
|
|
int go7007_v4l2_init(struct go7007 *go)
|
|
{
|
|
int rv;
|
|
|
|
go->video_dev = video_device_alloc();
|
|
if (go->video_dev == NULL)
|
|
return -ENOMEM;
|
|
*go->video_dev = go7007_template;
|
|
go->video_dev->parent = go->dev;
|
|
rv = video_register_device(go->video_dev, VFL_TYPE_GRABBER, -1);
|
|
if (rv < 0) {
|
|
video_device_release(go->video_dev);
|
|
go->video_dev = NULL;
|
|
return rv;
|
|
}
|
|
rv = v4l2_device_register(go->dev, &go->v4l2_dev);
|
|
if (rv < 0) {
|
|
video_device_release(go->video_dev);
|
|
go->video_dev = NULL;
|
|
return rv;
|
|
}
|
|
video_set_drvdata(go->video_dev, go);
|
|
++go->ref_count;
|
|
printk(KERN_INFO "%s: registered device %s [v4l2]\n",
|
|
go->video_dev->name, video_device_node_name(go->video_dev));
|
|
|
|
return 0;
|
|
}
|
|
|
|
void go7007_v4l2_remove(struct go7007 *go)
|
|
{
|
|
unsigned long flags;
|
|
|
|
mutex_lock(&go->hw_lock);
|
|
if (go->streaming) {
|
|
go->streaming = 0;
|
|
go7007_stream_stop(go);
|
|
spin_lock_irqsave(&go->spinlock, flags);
|
|
abort_queued(go);
|
|
spin_unlock_irqrestore(&go->spinlock, flags);
|
|
}
|
|
mutex_unlock(&go->hw_lock);
|
|
if (go->video_dev)
|
|
video_unregister_device(go->video_dev);
|
|
v4l2_device_unregister(&go->v4l2_dev);
|
|
}
|