786 lines
20 KiB
C
786 lines
20 KiB
C
/****************************************************************************
|
|
* drivers/video/goldfish_camera.c
|
|
*
|
|
* 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.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <debug.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include <nuttx/nuttx.h>
|
|
#include <nuttx/kthread.h>
|
|
#include <nuttx/video/imgsensor.h>
|
|
#include <nuttx/video/imgdata.h>
|
|
#include <nuttx/video/video.h>
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
#define GOLDFISH_CAMERA_MAX_NUMBER 8
|
|
#define GOLDFISH_CAMERA_SIZE_MAX_NUMBER 32
|
|
|
|
/****************************************************************************
|
|
* Private Types
|
|
****************************************************************************/
|
|
|
|
typedef struct
|
|
{
|
|
uint16_t width;
|
|
uint16_t height;
|
|
} goldfish_camera_size_t;
|
|
|
|
typedef struct
|
|
{
|
|
char name[32];
|
|
uint32_t channel;
|
|
uint32_t pix;
|
|
char dir[32];
|
|
goldfish_camera_size_t size[GOLDFISH_CAMERA_SIZE_MAX_NUMBER];
|
|
} goldfish_camera_info_t;
|
|
|
|
typedef struct
|
|
{
|
|
struct imgdata_s data;
|
|
struct imgsensor_s sensor;
|
|
imgdata_capture_t capture_cb;
|
|
FAR void *capture_arg;
|
|
uint32_t buf_size;
|
|
FAR uint8_t *next_buf;
|
|
struct file file;
|
|
sem_t run;
|
|
goldfish_camera_info_t info;
|
|
bool streaming;
|
|
pid_t pid;
|
|
} goldfish_camera_priv_t;
|
|
|
|
/****************************************************************************
|
|
* Private Function Prototypes
|
|
****************************************************************************/
|
|
|
|
/* Video image sensor operations */
|
|
|
|
static bool goldfish_camera_is_available(FAR struct imgsensor_s *sensor);
|
|
static int goldfish_camera_init(FAR struct imgsensor_s *sensor);
|
|
static int goldfish_camera_uninit(FAR struct imgsensor_s *sensor);
|
|
static FAR const char *
|
|
goldfish_camera_get_driver_name(FAR struct imgsensor_s *sensor);
|
|
static int
|
|
goldfish_camera_validate_frame_setting(FAR struct imgsensor_s *sensor,
|
|
imgsensor_stream_type_t type,
|
|
uint8_t nr_datafmt,
|
|
FAR imgsensor_format_t *datafmts,
|
|
FAR imgsensor_interval_t *interval);
|
|
static int goldfish_camera_start_capture(FAR struct imgsensor_s *sensor,
|
|
imgsensor_stream_type_t type,
|
|
uint8_t nr_datafmt,
|
|
FAR imgsensor_format_t *datafmts,
|
|
FAR imgsensor_interval_t *interval);
|
|
static int goldfish_camera_stop_capture(FAR struct imgsensor_s *sensor,
|
|
imgsensor_stream_type_t type);
|
|
|
|
/* Video image data operations */
|
|
|
|
static int goldfish_camera_data_init(FAR struct imgdata_s *data);
|
|
static int goldfish_camera_data_uninit(FAR struct imgdata_s *data);
|
|
static int
|
|
goldfish_camera_data_validate_frame_setting(FAR struct imgdata_s *data,
|
|
uint8_t nr_datafmt,
|
|
FAR imgdata_format_t *datafmt,
|
|
FAR imgdata_interval_t *interval);
|
|
static int
|
|
goldfish_camera_data_start_capture(FAR struct imgdata_s *data,
|
|
uint8_t nr_datafmt,
|
|
FAR imgdata_format_t *datafmt,
|
|
FAR imgdata_interval_t *interval,
|
|
imgdata_capture_t callback,
|
|
FAR void *arg);
|
|
static int goldfish_camera_data_stop_capture(FAR struct imgdata_s *data);
|
|
static int goldfish_camera_data_set_buf(FAR struct imgdata_s *data,
|
|
FAR uint8_t *addr,
|
|
uint32_t size);
|
|
|
|
/****************************************************************************
|
|
* Private Data
|
|
****************************************************************************/
|
|
|
|
/* Communication service for qemu-pipe */
|
|
|
|
static const char g_qemudservice[] = "qemud";
|
|
|
|
/* Camera service. */
|
|
|
|
static const char g_cameraservice[] = "camera";
|
|
|
|
static const struct imgsensor_ops_s g_goldfish_camera_ops =
|
|
{
|
|
.is_available = goldfish_camera_is_available,
|
|
.init = goldfish_camera_init,
|
|
.uninit = goldfish_camera_uninit,
|
|
.get_driver_name = goldfish_camera_get_driver_name,
|
|
.validate_frame_setting = goldfish_camera_validate_frame_setting,
|
|
.start_capture = goldfish_camera_start_capture,
|
|
.stop_capture = goldfish_camera_stop_capture,
|
|
};
|
|
|
|
static const struct imgdata_ops_s g_goldfish_camera_data_ops =
|
|
{
|
|
.init = goldfish_camera_data_init,
|
|
.uninit = goldfish_camera_data_uninit,
|
|
.set_buf = goldfish_camera_data_set_buf,
|
|
.validate_frame_setting = goldfish_camera_data_validate_frame_setting,
|
|
.start_capture = goldfish_camera_data_start_capture,
|
|
.stop_capture = goldfish_camera_data_stop_capture,
|
|
};
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
static int goldfish_camera_read_fully(FAR struct file *file,
|
|
FAR void *buffer,
|
|
size_t size)
|
|
{
|
|
FAR char *p = (FAR char *)buffer;
|
|
|
|
while (size > 0)
|
|
{
|
|
ssize_t n = file_read(file, p, size);
|
|
if (n < 0)
|
|
{
|
|
return n;
|
|
}
|
|
|
|
p += n;
|
|
size -= n;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int goldfish_camera_write_fully(FAR struct file *file,
|
|
FAR const void *buffer,
|
|
size_t size)
|
|
{
|
|
FAR const char *p = (FAR const char *)buffer;
|
|
|
|
while (size > 0)
|
|
{
|
|
ssize_t n = file_write(file, p, size);
|
|
if (n < 0)
|
|
{
|
|
return n;
|
|
}
|
|
|
|
p += n;
|
|
size -= n;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int goldfish_camera_send(FAR struct file *file,
|
|
FAR const char *format,
|
|
...)
|
|
{
|
|
char buf[256];
|
|
va_list ap;
|
|
int len;
|
|
|
|
va_start(ap, format);
|
|
len = vsnprintf(buf, sizeof(buf), format, ap);
|
|
va_end(ap);
|
|
|
|
if (len < 0)
|
|
{
|
|
return len;
|
|
}
|
|
|
|
return goldfish_camera_write_fully(file, buf, len + 1);
|
|
}
|
|
|
|
static ssize_t goldfish_camera_recv(FAR struct file *file,
|
|
FAR void **data)
|
|
{
|
|
char buf[9];
|
|
size_t payload_size;
|
|
bool empty = !*data;
|
|
int ret;
|
|
|
|
ret = goldfish_camera_read_fully(file, buf, 8);
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
buf[8] = '\0';
|
|
payload_size = strtoul(buf, NULL, 16);
|
|
|
|
if (payload_size < 3)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = goldfish_camera_read_fully(file, buf, 3);
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
if (memcmp(buf, "ok", 2) != 0)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (buf[2] == '\0')
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
payload_size -= 3;
|
|
if (payload_size == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (empty)
|
|
{
|
|
*data = kmm_malloc(payload_size);
|
|
if (*data == NULL)
|
|
{
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
|
|
ret = goldfish_camera_read_fully(file, *data, payload_size);
|
|
if (ret < 0)
|
|
{
|
|
if (empty)
|
|
{
|
|
kmm_free(*data);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
return payload_size;
|
|
}
|
|
|
|
static ssize_t goldfish_camera_get_list(FAR goldfish_camera_priv_t **priv,
|
|
size_t size)
|
|
{
|
|
FAR void *cameradata = NULL;
|
|
struct file file;
|
|
FAR char *data;
|
|
size_t count = 0;
|
|
int ret;
|
|
|
|
/* Queries list of cameras connected to the host. */
|
|
|
|
ret = file_open(&file,
|
|
CONFIG_GOLDFISH_CAMERA_PIPE_PATH,
|
|
O_RDWR | O_CLOEXEC);
|
|
if (ret < 0)
|
|
{
|
|
verr("Failed to open: %s: %d\n",
|
|
CONFIG_GOLDFISH_CAMERA_PIPE_PATH, ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = goldfish_camera_send(&file,
|
|
"pipe:%s:%s",
|
|
g_qemudservice,
|
|
g_cameraservice);
|
|
if (ret < 0)
|
|
{
|
|
goto out;
|
|
}
|
|
|
|
ret = goldfish_camera_send(&file, "list");
|
|
if (ret < 0)
|
|
{
|
|
goto out;
|
|
}
|
|
|
|
ret = goldfish_camera_recv(&file, &cameradata);
|
|
if (ret < 0)
|
|
{
|
|
goto out;
|
|
}
|
|
|
|
/* Parse string
|
|
*
|
|
* For example:
|
|
* 'name=virtualscene channel=0 pix=876758866 dir=back framedims=640x480'
|
|
*
|
|
* Use the strstr function to parse name/channel/pix/dir/framedims
|
|
* of multiple devices by "name";
|
|
*
|
|
* Use the strchr function to parse multiple size by ',';
|
|
*/
|
|
|
|
data = (FAR char *)cameradata;
|
|
|
|
while ((data = strstr(data, "name")) != NULL)
|
|
{
|
|
char sizelist[256];
|
|
FAR char *sizedata = sizelist;
|
|
size_t sizecount = 0;
|
|
|
|
priv[count] = kmm_zalloc(sizeof(goldfish_camera_priv_t));
|
|
if (priv[count] == NULL)
|
|
{
|
|
verr("Failed to allocate instance\n");
|
|
ret = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
sscanf(data,
|
|
"name=%s channel=%"SCNu32" pix=%"SCNu32" dir=%s framedims=%s",
|
|
priv[count]->info.name,
|
|
&priv[count]->info.channel,
|
|
&priv[count]->info.pix,
|
|
priv[count]->info.dir,
|
|
sizelist);
|
|
|
|
sscanf(sizedata,
|
|
"%"SCNu16"x%"SCNu16"",
|
|
&priv[count]->info.size[sizecount].width,
|
|
&priv[count]->info.size[sizecount].height);
|
|
|
|
while ((sizedata = strchr(sizedata, ',')) != NULL)
|
|
{
|
|
if (++sizecount >= GOLDFISH_CAMERA_SIZE_MAX_NUMBER)
|
|
{
|
|
ret = -E2BIG;
|
|
goto err;
|
|
}
|
|
|
|
sizedata++;
|
|
sscanf(sizedata,
|
|
"%"SCNu16"x%"SCNu16"",
|
|
&priv[count]->info.size[sizecount].width,
|
|
&priv[count]->info.size[sizecount].height);
|
|
}
|
|
|
|
if (++count >= size)
|
|
{
|
|
ret = -E2BIG;
|
|
goto err;
|
|
}
|
|
|
|
data++;
|
|
}
|
|
|
|
ret = count;
|
|
goto out;
|
|
|
|
err:
|
|
do
|
|
{
|
|
if (priv[count])
|
|
{
|
|
kmm_free(priv[count]);
|
|
}
|
|
}
|
|
while (count--);
|
|
|
|
out:
|
|
file_close(&file);
|
|
|
|
if (cameradata)
|
|
{
|
|
kmm_free(cameradata);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int goldfish_camera_thread(int argc, FAR char *argv[])
|
|
{
|
|
FAR goldfish_camera_priv_t *priv = (FAR goldfish_camera_priv_t *)
|
|
((uintptr_t)strtoul(argv[1], NULL, 16));
|
|
int ret;
|
|
|
|
while (1)
|
|
{
|
|
if (nxsem_wait(&priv->run) < 0)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
if (!priv->streaming)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
ret = goldfish_camera_send(&priv->file,
|
|
"frame video=%"PRIu32" preview=0 "
|
|
"whiteb=1,1,1 expcomp=1 time=0",
|
|
priv->buf_size);
|
|
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
reload:
|
|
ret = goldfish_camera_recv(&priv->file,
|
|
(FAR void **)&priv->next_buf);
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
else if (ret == 0)
|
|
{
|
|
goto reload;
|
|
}
|
|
else
|
|
{
|
|
struct timespec ts;
|
|
struct timeval tv;
|
|
|
|
DEBUGASSERT(ret == priv->buf_size);
|
|
|
|
if (priv->capture_cb == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
clock_systime_timespec(&ts);
|
|
TIMESPEC_TO_TIMEVAL(&tv, &ts);
|
|
priv->capture_cb(0, priv->buf_size, &tv, priv->capture_arg);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Helper functions */
|
|
|
|
static uint32_t imgdata_fmt_to_v4l2(uint32_t pixelformat)
|
|
{
|
|
switch (pixelformat)
|
|
{
|
|
case IMGDATA_PIX_FMT_YUV420P:
|
|
return V4L2_PIX_FMT_YUV420;
|
|
|
|
case IMGDATA_PIX_FMT_YUYV:
|
|
return V4L2_PIX_FMT_YUYV;
|
|
|
|
case IMGDATA_PIX_FMT_JPEG_WITH_SUBIMG:
|
|
return V4L2_PIX_FMT_JPEG;
|
|
|
|
case IMGDATA_PIX_FMT_JPEG:
|
|
return V4L2_PIX_FMT_JPEG;
|
|
|
|
case IMGDATA_PIX_FMT_RGB565:
|
|
return V4L2_PIX_FMT_RGB565;
|
|
|
|
case IMGDATA_PIX_FMT_UYVY:
|
|
return V4L2_PIX_FMT_UYVY;
|
|
|
|
default:
|
|
|
|
/* Unsupported format */
|
|
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* Sensor op functions are mostly dummy */
|
|
|
|
static bool goldfish_camera_is_available(FAR struct imgsensor_s *sensor)
|
|
{
|
|
return access(CONFIG_GOLDFISH_CAMERA_PIPE_PATH, F_OK) == 0;
|
|
}
|
|
|
|
static int goldfish_camera_init(FAR struct imgsensor_s *sensor)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int goldfish_camera_uninit(FAR struct imgsensor_s *sensor)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static FAR const char *
|
|
goldfish_camera_get_driver_name(FAR struct imgsensor_s *sensor)
|
|
{
|
|
FAR goldfish_camera_priv_t *priv = container_of(sensor,
|
|
goldfish_camera_priv_t,
|
|
sensor);
|
|
return priv->info.name;
|
|
}
|
|
|
|
static int
|
|
goldfish_camera_validate_frame_setting(FAR struct imgsensor_s *sensor,
|
|
imgsensor_stream_type_t type,
|
|
uint8_t nr_fmt,
|
|
FAR imgsensor_format_t *fmt,
|
|
FAR imgsensor_interval_t *interval)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int goldfish_camera_start_capture(FAR struct imgsensor_s *sensor,
|
|
imgsensor_stream_type_t type,
|
|
uint8_t nr_fmt,
|
|
FAR imgsensor_format_t *fmt,
|
|
FAR imgsensor_interval_t *interval)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int goldfish_camera_stop_capture(FAR struct imgsensor_s *sensor,
|
|
imgsensor_stream_type_t type)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* Data op functions do all the real work */
|
|
|
|
static int goldfish_camera_data_init(FAR struct imgdata_s *data)
|
|
{
|
|
FAR goldfish_camera_priv_t *priv = (FAR goldfish_camera_priv_t *)data;
|
|
FAR char *argv[2];
|
|
char arg1[32];
|
|
int ret;
|
|
|
|
ret = file_open(&priv->file,
|
|
CONFIG_GOLDFISH_CAMERA_PIPE_PATH,
|
|
O_RDWR | O_CLOEXEC);
|
|
if (ret < 0)
|
|
{
|
|
verr("Failed to open: %s: %d\n",
|
|
CONFIG_GOLDFISH_CAMERA_PIPE_PATH, ret);
|
|
return ret;
|
|
}
|
|
|
|
nxsem_init(&priv->run, 0, 0);
|
|
priv->streaming = true;
|
|
|
|
ret = goldfish_camera_send(&priv->file,
|
|
"pipe:%s:%s:name=%s",
|
|
g_qemudservice,
|
|
g_cameraservice,
|
|
priv->info.name);
|
|
if (ret < 0)
|
|
{
|
|
goto err;
|
|
}
|
|
|
|
ret = goldfish_camera_send(&priv->file, "connect");
|
|
if (ret < 0)
|
|
{
|
|
goto err;
|
|
}
|
|
|
|
snprintf(arg1, sizeof(arg1), "%p", priv);
|
|
argv[0] = arg1;
|
|
argv[1] = NULL;
|
|
|
|
ret = kthread_create("goldfish_camera_thread",
|
|
SCHED_PRIORITY_DEFAULT,
|
|
CONFIG_DEFAULT_TASK_STACKSIZE,
|
|
goldfish_camera_thread, argv);
|
|
if (ret < 0)
|
|
{
|
|
goto err;
|
|
}
|
|
|
|
priv->pid = ret;
|
|
return 0;
|
|
|
|
err:
|
|
nxsem_destroy(&priv->run);
|
|
priv->streaming = false;
|
|
file_close(&priv->file);
|
|
return ret;
|
|
}
|
|
|
|
static int goldfish_camera_data_uninit(FAR struct imgdata_s *data)
|
|
{
|
|
FAR goldfish_camera_priv_t *priv = (FAR goldfish_camera_priv_t *)data;
|
|
int ret;
|
|
|
|
ret = goldfish_camera_send(&priv->file, "disconnect");
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
priv->streaming = false;
|
|
nxsem_post(&priv->run);
|
|
nxsched_waitpid(priv->pid, NULL, 0);
|
|
|
|
nxsem_destroy(&priv->run);
|
|
file_close(&priv->file);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int goldfish_camera_data_validate_buf(FAR uint8_t *addr,
|
|
uint32_t size)
|
|
{
|
|
if (!addr || ((uintptr_t)addr & 0x1f))
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int goldfish_camera_data_set_buf(FAR struct imgdata_s *data,
|
|
FAR uint8_t *addr,
|
|
uint32_t size)
|
|
{
|
|
FAR goldfish_camera_priv_t *priv = (FAR goldfish_camera_priv_t *)data;
|
|
int ret;
|
|
|
|
ret = goldfish_camera_data_validate_buf(addr, size);
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
priv->next_buf = addr;
|
|
priv->buf_size = size;
|
|
|
|
nxsem_post(&priv->run);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
goldfish_camera_data_validate_frame_setting(FAR struct imgdata_s *data,
|
|
uint8_t nr_datafmt,
|
|
FAR imgdata_format_t *datafmt,
|
|
FAR imgdata_interval_t *interval)
|
|
{
|
|
FAR goldfish_camera_priv_t *priv = (FAR goldfish_camera_priv_t *)data;
|
|
int i;
|
|
|
|
for (i = 0; i < GOLDFISH_CAMERA_SIZE_MAX_NUMBER; i++)
|
|
{
|
|
if (datafmt[IMGDATA_FMT_MAIN].width == priv->info.size[i].width &&
|
|
datafmt[IMGDATA_FMT_MAIN].height == priv->info.size[i].height &&
|
|
imgdata_fmt_to_v4l2(datafmt[IMGDATA_FMT_MAIN].pixelformat)
|
|
== priv->info.pix)
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return -ENOTSUP;
|
|
}
|
|
|
|
static int
|
|
goldfish_camera_data_start_capture(FAR struct imgdata_s *data,
|
|
uint8_t nr_datafmt,
|
|
FAR imgdata_format_t *datafmt,
|
|
FAR imgdata_interval_t *interval,
|
|
imgdata_capture_t callback,
|
|
FAR void *arg)
|
|
{
|
|
FAR goldfish_camera_priv_t *priv = (FAR goldfish_camera_priv_t *)data;
|
|
int ret;
|
|
|
|
ret = goldfish_camera_send(&priv->file,
|
|
"start dim=%dx%d pix=%d",
|
|
datafmt[IMGDATA_FMT_MAIN].width,
|
|
datafmt[IMGDATA_FMT_MAIN].height,
|
|
imgdata_fmt_to_v4l2(
|
|
datafmt[IMGDATA_FMT_MAIN].pixelformat));
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
priv->capture_cb = callback;
|
|
priv->capture_arg = arg;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int goldfish_camera_data_stop_capture(FAR struct imgdata_s *data)
|
|
{
|
|
FAR goldfish_camera_priv_t *priv = (FAR goldfish_camera_priv_t *)data;
|
|
int ret;
|
|
|
|
ret = goldfish_camera_send(&priv->file, "stop");
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
priv->capture_cb = NULL;
|
|
priv->capture_arg = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
int goldfish_camera_initialize(void)
|
|
{
|
|
FAR goldfish_camera_priv_t *priv[GOLDFISH_CAMERA_MAX_NUMBER];
|
|
FAR struct imgsensor_s *sensor;
|
|
char devpath[32];
|
|
ssize_t number;
|
|
ssize_t i;
|
|
|
|
number = goldfish_camera_get_list(priv, GOLDFISH_CAMERA_MAX_NUMBER);
|
|
if (number < 0)
|
|
{
|
|
return number;
|
|
}
|
|
|
|
for (i = 0; i < number; i++)
|
|
{
|
|
priv[i]->sensor.ops = &g_goldfish_camera_ops;
|
|
priv[i]->data.ops = &g_goldfish_camera_data_ops;
|
|
|
|
sensor = &priv[i]->sensor;
|
|
|
|
if (i == 0)
|
|
{
|
|
snprintf(devpath, sizeof(devpath), "/dev/video");
|
|
}
|
|
else
|
|
{
|
|
snprintf(devpath, sizeof(devpath), "/dev/video%zd", i);
|
|
}
|
|
|
|
video_register(devpath,
|
|
&priv[i]->data,
|
|
&sensor,
|
|
1);
|
|
}
|
|
|
|
return 0;
|
|
}
|