Refactor nuttx v4l2
Adjust the v4l2 framework to support both capture and v4l2m2m, and can easily add other v4l2 features. Signed-off-by: shizhenghui <shizhenghui@xiaomi.com>
This commit is contained in:
shizhenghui
Xiang Xiao
parent
c3a3f79741
commit
255090d594
boards/sim/sim/sim/src
drivers/video
include/nuttx/video
@ -47,7 +47,7 @@
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#include <nuttx/serial/uart_rpmsg.h>
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#include <nuttx/timers/oneshot.h>
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#include <nuttx/video/fb.h>
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#include <nuttx/video/video.h>
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#include <nuttx/video/v4l2_cap.h>
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#include <nuttx/timers/oneshot.h>
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#include <nuttx/wireless/pktradio.h>
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#include <nuttx/wireless/bluetooth/bt_null.h>
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@ -300,10 +300,10 @@ int sim_bringup(void)
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sim_camera_initialize();
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ret = video_initialize(CONFIG_SIM_CAMERA_DEV_PATH);
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ret = capture_initialize(CONFIG_SIM_CAMERA_DEV_PATH);
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if (ret < 0)
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{
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syslog(LOG_ERR, "ERROR: video_initialize() failed: %d\n", ret);
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syslog(LOG_ERR, "ERROR: capture_initialize() failed: %d\n", ret);
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}
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#endif
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@ -29,7 +29,7 @@ if(CONFIG_DRIVERS_VIDEO)
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endif()
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if(CONFIG_VIDEO_STREAM)
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list(APPEND SRCS video.c video_framebuff.c)
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list(APPEND SRCS v4l2_core.c video_framebuff.c v4l2_cap.c)
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endif()
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# These video drivers depend on I2C support
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@ -27,7 +27,7 @@ ifeq ($(CONFIG_VIDEO_FB),y)
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endif
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ifeq ($(CONFIG_VIDEO_STREAM),y)
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CSRCS += video.c video_framebuff.c
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CSRCS += v4l2_core.c video_framebuff.c v4l2_cap.c
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endif
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# These video drivers depend on I2C support
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@ -34,6 +34,7 @@
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#include <nuttx/video/imgsensor.h>
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#include <nuttx/video/imgdata.h>
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#include <nuttx/video/video.h>
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#include <nuttx/video/v4l2_cap.h>
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/****************************************************************************
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* Pre-processor Definitions
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@ -779,10 +780,7 @@ int goldfish_camera_initialize(void)
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snprintf(devpath, sizeof(devpath), "/dev/video%zd", i);
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}
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video_register(devpath,
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&priv[i]->data,
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&sensor,
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1);
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capture_register(devpath, &priv[i]->data, &sensor, 1);
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}
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return 0;
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File diff suppressed because it is too large
Load Diff
533
drivers/video/v4l2_core.c
Normal file
533
drivers/video/v4l2_core.c
Normal file
@ -0,0 +1,533 @@
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/****************************************************************************
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* drivers/video/v4l2_core.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <debug.h>
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#include <errno.h>
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#include <nuttx/kmalloc.h>
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#include <nuttx/video/video.h>
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/* Character driver methods. */
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static int v4l2_open(FAR struct file *filep);
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static int v4l2_close(FAR struct file *filep);
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static ssize_t v4l2_read(FAR struct file *filep,
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FAR char *buffer, size_t buflen);
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static ssize_t v4l2_write(FAR struct file *filep,
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FAR const char *buffer, size_t buflen);
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static int v4l2_ioctl(FAR struct file *filep,
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int cmd, unsigned long arg);
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static int v4l2_mmap(FAR struct file *filep,
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FAR struct mm_map_entry_s *map);
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static int v4l2_poll(FAR struct file *filep,
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FAR struct pollfd *fds, bool setup);
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#ifndef CONFIG_DISABLE_PSEUDOFS_OPERATIONS
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static int v4l2_unlink(FAR struct inode *inode);
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#endif
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/****************************************************************************
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* Public Data
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****************************************************************************/
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static const struct file_operations g_v4l2_fops =
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{
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v4l2_open, /* open */
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v4l2_close, /* close */
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v4l2_read, /* read */
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v4l2_write, /* write */
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NULL, /* seek */
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v4l2_ioctl, /* ioctl */
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v4l2_mmap, /* mmap */
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NULL, /* truncate */
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v4l2_poll, /* poll */
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#ifndef CONFIG_DISABLE_PSEUDOFS_OPERATIONS
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v4l2_unlink, /* unlink */
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#endif
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};
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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static int v4l2_open(FAR struct file *filep)
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{
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FAR struct inode *inode = filep->f_inode;
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FAR struct v4l2_s *v4l2 = inode->i_private;
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if (v4l2->fops->open != NULL)
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{
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return v4l2->fops->open(filep);
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}
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return -ENOTSUP;
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}
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static int v4l2_close(FAR struct file *filep)
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{
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FAR struct inode *inode = filep->f_inode;
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FAR struct v4l2_s *v4l2 = inode->i_private;
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if (v4l2->fops->close != NULL)
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{
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return v4l2->fops->close(filep);
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}
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return -ENOTSUP;
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}
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static ssize_t v4l2_read(FAR struct file *filep,
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FAR char *buffer, size_t buflen)
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{
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FAR struct inode *inode = filep->f_inode;
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FAR struct v4l2_s *v4l2 = inode->i_private;
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if (v4l2->fops->read != NULL)
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{
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return v4l2->fops->read(filep, buffer, buflen);
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}
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return -ENOTSUP;
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}
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static ssize_t v4l2_write(FAR struct file *filep,
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FAR const char *buffer, size_t buflen)
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{
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FAR struct inode *inode = filep->f_inode;
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FAR struct v4l2_s *v4l2 = inode->i_private;
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if (v4l2->fops->write != NULL)
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{
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return v4l2->fops->write(filep, buffer, buflen);
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}
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return -ENOTSUP;
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}
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static int v4l2_ioctl(FAR struct file *filep,
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int cmd, unsigned long arg)
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{
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FAR struct inode *inode = filep->f_inode;
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FAR struct v4l2_s *v4l2 = inode->i_private;
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switch (cmd)
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{
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case VIDIOC_QUERYCAP:
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if (v4l2->vops->querycap == NULL)
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{
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break;
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}
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return v4l2->vops->querycap(v4l2,
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(FAR struct v4l2_capability *)arg);
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case VIDIOC_G_INPUT:
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if (v4l2->vops->g_input == NULL)
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{
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break;
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}
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return v4l2->vops->g_input((FAR int *)arg);
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case VIDIOC_ENUMINPUT:
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if (v4l2->vops->enum_input == NULL)
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{
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break;
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}
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return v4l2->vops->enum_input(v4l2,
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(FAR struct v4l2_input *)arg);
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case VIDIOC_REQBUFS:
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if (v4l2->vops->reqbufs == NULL)
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{
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break;
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}
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return v4l2->vops->reqbufs(v4l2,
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(FAR struct v4l2_requestbuffers *)arg);
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case VIDIOC_QUERYBUF:
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if (v4l2->vops->querybuf == NULL)
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{
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break;
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}
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return v4l2->vops->querybuf(v4l2,
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(FAR struct v4l2_buffer *)arg);
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case VIDIOC_QBUF:
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if (v4l2->vops->qbuf == NULL)
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{
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break;
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}
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return v4l2->vops->qbuf(v4l2,
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(FAR struct v4l2_buffer *)arg);
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break;
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case VIDIOC_DQBUF:
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if (v4l2->vops->dqbuf == NULL)
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{
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break;
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}
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return v4l2->vops->dqbuf(v4l2,
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(FAR struct v4l2_buffer *)arg,
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filep->f_oflags);
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case VIDIOC_CANCEL_DQBUF:
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if (v4l2->vops->cancel_dqbuf == NULL)
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{
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break;
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}
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return v4l2->vops->cancel_dqbuf(v4l2,
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(FAR enum v4l2_buf_type)arg);
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case VIDIOC_STREAMON:
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if (v4l2->vops->streamon == NULL)
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{
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break;
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}
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return v4l2->vops->streamon(v4l2,
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(FAR enum v4l2_buf_type *)arg);
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case VIDIOC_STREAMOFF:
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if (v4l2->vops->streamoff == NULL)
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{
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break;
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}
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return v4l2->vops->streamoff(v4l2,
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(FAR enum v4l2_buf_type *)arg);
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case VIDIOC_DO_HALFPUSH:
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if (v4l2->vops->do_halfpush == NULL)
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{
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break;
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}
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return v4l2->vops->do_halfpush(v4l2, arg);
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case VIDIOC_TAKEPICT_START:
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if (v4l2->vops->takepict_start == NULL)
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{
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break;
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}
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return v4l2->vops->takepict_start(v4l2, (int32_t)arg);
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case VIDIOC_TAKEPICT_STOP:
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if (v4l2->vops->takepict_stop == NULL)
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{
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break;
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}
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return v4l2->vops->takepict_stop(v4l2, arg);
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case VIDIOC_S_SELECTION:
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if (v4l2->vops->s_selection == NULL)
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{
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break;
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}
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return v4l2->vops->s_selection(v4l2,
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(FAR struct v4l2_selection *)arg);
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case VIDIOC_G_SELECTION:
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if (v4l2->vops->g_selection == NULL)
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{
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break;
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}
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return v4l2->vops->g_selection(v4l2,
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(FAR struct v4l2_selection *)arg);
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case VIDIOC_TRY_FMT:
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if (v4l2->vops->try_fmt == NULL)
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{
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break;
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}
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return v4l2->vops->try_fmt(v4l2,
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(FAR struct v4l2_format *)arg);
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case VIDIOC_G_FMT:
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if (v4l2->vops->g_fmt == NULL)
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{
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break;
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}
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return v4l2->vops->g_fmt(v4l2,
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(FAR struct v4l2_format *)arg);
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case VIDIOC_S_FMT:
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if (v4l2->vops->s_fmt == NULL)
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{
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break;
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}
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return v4l2->vops->s_fmt(v4l2,
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(FAR struct v4l2_format *)arg);
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case VIDIOC_S_PARM:
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if (v4l2->vops->s_parm == NULL)
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{
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break;
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}
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return v4l2->vops->s_parm(v4l2,
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(FAR struct v4l2_streamparm *)arg);
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case VIDIOC_G_PARM:
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if (v4l2->vops->g_parm == NULL)
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{
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break;
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}
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return v4l2->vops->g_parm(v4l2,
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(FAR struct v4l2_streamparm *)arg);
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case VIDIOC_QUERYCTRL:
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if (v4l2->vops->queryctrl == NULL)
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{
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break;
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}
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return v4l2->vops->queryctrl(v4l2,
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(FAR struct v4l2_queryctrl *)arg);
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case VIDIOC_QUERY_EXT_CTRL:
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if (v4l2->vops->query_ext_ctrl == NULL)
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{
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break;
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}
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return v4l2->vops->query_ext_ctrl(v4l2,
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(FAR struct v4l2_query_ext_ctrl *)arg);
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case VIDIOC_QUERYMENU:
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if (v4l2->vops->querymenu == NULL)
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{
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break;
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}
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return v4l2->vops->querymenu(v4l2,
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(FAR struct v4l2_querymenu *)arg);
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case VIDIOC_G_CTRL:
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if (v4l2->vops->g_ctrl == NULL)
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{
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break;
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}
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return v4l2->vops->g_ctrl(v4l2,
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(FAR struct v4l2_control *)arg);
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case VIDIOC_S_CTRL:
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if (v4l2->vops->s_ctrl == NULL)
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{
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break;
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}
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return v4l2->vops->s_ctrl(v4l2,
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(FAR struct v4l2_control *)arg);
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case VIDIOC_G_EXT_CTRLS:
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if (v4l2->vops->g_ext_ctrls == NULL)
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{
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break;
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}
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return v4l2->vops->g_ext_ctrls(v4l2,
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(FAR struct v4l2_ext_controls *)arg);
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case VIDIOC_S_EXT_CTRLS:
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if (v4l2->vops->s_ext_ctrls == NULL)
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{
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break;
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}
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return v4l2->vops->s_ext_ctrls(v4l2,
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(FAR struct v4l2_ext_controls *)arg);
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case VIDIOC_G_STD:
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break;
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case VIDIOC_S_STD:
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break;
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case V4SIOC_QUERY_EXT_CTRL_SCENE:
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if (v4l2->vops->query_ext_ctrl_scene == NULL)
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{
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break;
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}
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return v4l2->vops->query_ext_ctrl_scene(v4l2,
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(FAR struct v4s_query_ext_ctrl_scene *)arg);
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case V4SIOC_QUERYMENU_SCENE:
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if (v4l2->vops->querymenu_scene == NULL)
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{
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break;
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}
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return v4l2->vops->querymenu_scene(v4l2,
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(FAR struct v4s_querymenu_scene *)arg);
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case V4SIOC_G_EXT_CTRLS_SCENE:
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if (v4l2->vops->g_ext_ctrls_scene == NULL)
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{
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break;
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}
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return v4l2->vops->g_ext_ctrls_scene(v4l2,
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(FAR struct v4s_ext_controls_scene *)arg);
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case V4SIOC_S_EXT_CTRLS_SCENE:
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if (v4l2->vops->s_ext_ctrls_scene == NULL)
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{
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break;
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}
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return v4l2->vops->s_ext_ctrls_scene(v4l2,
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(FAR struct v4s_ext_controls_scene *)arg);
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case VIDIOC_ENUM_FMT:
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if (v4l2->vops->enum_fmt == NULL)
|
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{
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break;
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}
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return v4l2->vops->enum_fmt(v4l2,
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(FAR struct v4l2_fmtdesc *)arg);
|
||||
break;
|
||||
|
||||
case VIDIOC_ENUM_FRAMEINTERVALS:
|
||||
if (v4l2->vops->enum_frminterval == NULL)
|
||||
{
|
||||
break;
|
||||
}
|
||||
|
||||
return v4l2->vops->enum_frminterval(v4l2,
|
||||
(FAR struct v4l2_frmivalenum *)arg);
|
||||
break;
|
||||
|
||||
case VIDIOC_ENUM_FRAMESIZES:
|
||||
if (v4l2->vops->enum_frmsize == NULL)
|
||||
{
|
||||
break;
|
||||
}
|
||||
|
||||
return v4l2->vops->enum_frmsize(v4l2,
|
||||
(FAR struct v4l2_frmsizeenum *)arg);
|
||||
break;
|
||||
|
||||
default:
|
||||
verr("Unrecognized cmd: %d\n", cmd);
|
||||
break;
|
||||
}
|
||||
|
||||
return -ENOTTY;
|
||||
}
|
||||
|
||||
static int v4l2_mmap(FAR struct file *filep,
|
||||
FAR struct mm_map_entry_s *map)
|
||||
{
|
||||
FAR struct inode *inode = filep->f_inode;
|
||||
FAR struct v4l2_s *v4l2 = inode->i_private;
|
||||
|
||||
if (v4l2->fops->mmap != NULL)
|
||||
{
|
||||
return v4l2->fops->mmap(filep, map);
|
||||
}
|
||||
|
||||
return -ENOTSUP;
|
||||
}
|
||||
|
||||
static int v4l2_poll(FAR struct file *filep,
|
||||
FAR struct pollfd *fds, bool setup)
|
||||
{
|
||||
FAR struct inode *inode = filep->f_inode;
|
||||
FAR struct v4l2_s *v4l2 = inode->i_private;
|
||||
|
||||
if (v4l2->fops->poll != NULL)
|
||||
{
|
||||
return v4l2->fops->poll(filep, fds, setup);
|
||||
}
|
||||
|
||||
return -ENOTSUP;
|
||||
}
|
||||
|
||||
#ifndef CONFIG_DISABLE_PSEUDOFS_OPERATIONS
|
||||
static int v4l2_unlink(FAR struct inode *inode)
|
||||
{
|
||||
FAR struct v4l2_s *v4l2 = inode->i_private;
|
||||
|
||||
if (v4l2->fops->unlink != NULL)
|
||||
{
|
||||
return v4l2->fops->unlink(inode);
|
||||
}
|
||||
|
||||
return -ENOTSUP;
|
||||
}
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
int video_register(FAR const char *devpath, FAR struct v4l2_s *v4l2)
|
||||
{
|
||||
int ret;
|
||||
|
||||
/* Input devpath Error Check */
|
||||
|
||||
if (devpath[0] != '/')
|
||||
{
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* Register the character driver */
|
||||
|
||||
ret = register_driver(devpath, &g_v4l2_fops, 0666, v4l2);
|
||||
if (ret < 0)
|
||||
{
|
||||
verr("Failed to register driver: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
return OK;
|
||||
}
|
||||
|
||||
int video_unregister(FAR const char *devpath)
|
||||
{
|
||||
return unregister_driver(devpath);
|
||||
}
|
||||
|
||||
87
include/nuttx/video/v4l2_cap.h
Normal file
87
include/nuttx/video/v4l2_cap.h
Normal file
@ -0,0 +1,87 @@
|
||||
/****************************************************************************
|
||||
* include/nuttx/video/v4l2_cap.h
|
||||
*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership. The
|
||||
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
* License for the specific language governing permissions and limitations
|
||||
* under the License.
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __NUTTX_VIDEO_V4L2_CAP_H
|
||||
#define __NUTTX_VIDEO_V4L2_CAP_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/video/imgdata.h>
|
||||
#include <nuttx/video/imgsensor.h>
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C"
|
||||
{
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
/* Initialize capture driver.
|
||||
*
|
||||
* param [in] devpath: path to capture device
|
||||
*
|
||||
* Return on success, 0 is returned. On failure,
|
||||
* negative value is returned.
|
||||
*/
|
||||
|
||||
int capture_initialize(FAR const char *devpath);
|
||||
|
||||
/* Uninitialize capture driver.
|
||||
*
|
||||
* Return on success, 0 is returned. On failure,
|
||||
* negative value is returned.
|
||||
*/
|
||||
|
||||
int capture_uninitialize(FAR const char *devpath);
|
||||
|
||||
/* New API to register capture driver.
|
||||
*
|
||||
* param [in] devpath: path to capture device
|
||||
* param [in] data: provide imgdata ops
|
||||
* param [in] sensor: provide imgsensor ops array
|
||||
* param [in] sensor_num: the number of imgsensor ops array
|
||||
*
|
||||
* Return on success, 0 is returned. On failure,
|
||||
* negative value is returned.
|
||||
*/
|
||||
|
||||
int capture_register(FAR const char *devpath,
|
||||
FAR struct imgdata_s *data,
|
||||
FAR struct imgsensor_s **sensors,
|
||||
size_t sensor_num);
|
||||
|
||||
/* New API to Unregister capture driver.
|
||||
*
|
||||
* param [in] devpath: path to capture device
|
||||
*
|
||||
* Return on success, 0 is returned. On failure,
|
||||
* negative value is returned.
|
||||
*/
|
||||
|
||||
int capture_unregister(FAR const char *devpath);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* __NUTTX_VIDEO_V4L2_CAP_H */
|
||||
@ -30,6 +30,7 @@
|
||||
****************************************************************************/
|
||||
|
||||
#include <sys/videoio.h>
|
||||
#include <nuttx/fs/fs.h>
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C"
|
||||
@ -55,31 +56,100 @@ extern "C"
|
||||
#define VIDEO_HSIZE_3M (2048) /* 3M horizontal size */
|
||||
#define VIDEO_VSIZE_3M (1536) /* 3M vertical size */
|
||||
|
||||
/****************************************************************************
|
||||
* Public Types
|
||||
*****************************************************************************/
|
||||
|
||||
struct video_format_s
|
||||
{
|
||||
uint16_t width;
|
||||
uint16_t height;
|
||||
uint32_t pixelformat;
|
||||
};
|
||||
|
||||
typedef struct video_format_s video_format_t;
|
||||
|
||||
struct v4l2_s
|
||||
{
|
||||
FAR const struct v4l2_ops_s *vops;
|
||||
FAR const struct file_operations *fops;
|
||||
};
|
||||
|
||||
struct v4l2_ops_s
|
||||
{
|
||||
CODE int (*querycap)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_capability *cap);
|
||||
CODE int (*g_input)(FAR int *num);
|
||||
CODE int (*enum_input)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_input *input);
|
||||
CODE int (*reqbufs)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_requestbuffers *reqbufs);
|
||||
CODE int (*querybuf)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_buffer *buf);
|
||||
CODE int (*qbuf)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_buffer *buf);
|
||||
CODE int (*dqbuf)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_buffer *buf, int oflags);
|
||||
CODE int (*cancel_dqbuf)(FAR struct v4l2_s *ctx,
|
||||
enum v4l2_buf_type type);
|
||||
CODE int (*g_fmt)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_format *fmt);
|
||||
CODE int (*s_fmt)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_format *fmt);
|
||||
CODE int (*try_fmt)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_format *v4l2);
|
||||
CODE int (*g_parm)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_streamparm *parm);
|
||||
CODE int (*s_parm)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_streamparm *parm);
|
||||
CODE int (*streamon)(FAR struct v4l2_s *ctx,
|
||||
FAR enum v4l2_buf_type *type);
|
||||
CODE int (*streamoff)(FAR struct v4l2_s *ctx,
|
||||
FAR enum v4l2_buf_type *type);
|
||||
CODE int (*do_halfpush)(FAR struct v4l2_s *ctx,
|
||||
bool enable);
|
||||
CODE int (*takepict_start)(FAR struct v4l2_s *ctx,
|
||||
int32_t capture_num);
|
||||
CODE int (*takepict_stop)(FAR struct v4l2_s *ctx,
|
||||
bool halfpush);
|
||||
CODE int (*s_selection)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_selection *clip);
|
||||
CODE int (*g_selection)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_selection *clip);
|
||||
CODE int (*queryctrl)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_queryctrl *ctrl);
|
||||
CODE int (*query_ext_ctrl)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_query_ext_ctrl *ctrl);
|
||||
CODE int (*querymenu)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_querymenu *menu);
|
||||
CODE int (*g_ctrl)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_control *ctrl);
|
||||
CODE int (*s_ctrl)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_control *ctrl);
|
||||
CODE int (*g_ext_ctrls)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_ext_controls *ctrls);
|
||||
CODE int (*s_ext_ctrls)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_ext_controls *ctrls);
|
||||
CODE int (*query_ext_ctrl_scene)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4s_query_ext_ctrl_scene *ctrl);
|
||||
CODE int (*querymenu_scene)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4s_querymenu_scene *menu);
|
||||
CODE int (*g_ext_ctrls_scene)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4s_ext_controls_scene *ctrls);
|
||||
CODE int (*s_ext_ctrls_scene)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4s_ext_controls_scene *ctrls);
|
||||
CODE int (*enum_fmt)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_fmtdesc *f);
|
||||
CODE int (*enum_frminterval)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_frmivalenum *f);
|
||||
CODE int (*enum_frmsize)(FAR struct v4l2_s *ctx,
|
||||
FAR struct v4l2_frmsizeenum *f);
|
||||
};
|
||||
|
||||
/****************************************************************************
|
||||
* Public Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
struct imgdata_s;
|
||||
struct imgsensor_s;
|
||||
|
||||
/* Initialize video driver.
|
||||
*
|
||||
* param [in] devpath: path to video device
|
||||
*
|
||||
* Return on success, 0 is returned. On failure,
|
||||
* negative value is returned.
|
||||
*/
|
||||
|
||||
int video_initialize(FAR const char *devpath);
|
||||
|
||||
/* Uninitialize video driver.
|
||||
*
|
||||
* Return on success, 0 is returned. On failure,
|
||||
* negative value is returned.
|
||||
*/
|
||||
|
||||
int video_uninitialize(FAR const char *devpath);
|
||||
|
||||
/* New API to register video driver.
|
||||
*
|
||||
* param [in] devpath: path to video device
|
||||
@ -92,9 +162,7 @@ int video_uninitialize(FAR const char *devpath);
|
||||
*/
|
||||
|
||||
int video_register(FAR const char *devpath,
|
||||
FAR struct imgdata_s *data,
|
||||
FAR struct imgsensor_s **sensors,
|
||||
size_t sensor_num);
|
||||
FAR struct v4l2_s *ctx);
|
||||
|
||||
/* New API to Unregister video driver.
|
||||
*
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user