47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
#pragma once
|
|
|
|
#include <stdlib.h>
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
#include <string.h>
|
|
#include <math.h>
|
|
#include <fcntl.h>
|
|
#include <poll.h>
|
|
#include <errno.h>
|
|
#include <assert.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
|
|
#include <sys/ioctl.h>
|
|
#include <sys/mman.h>
|
|
|
|
#include <linux/videodev2.h>
|
|
|
|
#ifndef CFG_XIOCTL_RETRIES
|
|
# define CFG_XIOCTL_RETRIES 4
|
|
#endif
|
|
#define XIOCTL_RETRIES ((unsigned)(CFG_XIOCTL_RETRIES))
|
|
|
|
// assumes that name is first item
|
|
#define dev_name(dev) (dev ? *(const char**)dev : "?")
|
|
#define E_LOG_ERROR(dev, _msg, ...) do { fprintf(stderr, "%s: " _msg "\n", dev_name(dev), ##__VA_ARGS__); goto error; } while(0)
|
|
#define E_LOG_PERROR(dev, _msg, ...) do { fprintf(stderr, "%s: " _msg "\n", dev_name(dev), ##__VA_ARGS__); exit(-1); } while(0)
|
|
#define E_LOG_INFO(dev, _msg, ...) fprintf(stderr, "%s: " _msg "\n", dev_name(dev), ##__VA_ARGS__)
|
|
#define E_LOG_VERBOSE(dev, _msg, ...) fprintf(stderr, "%s: " _msg "\n", dev_name(dev), ##__VA_ARGS__)
|
|
#define E_LOG_DEBUG(dev, _msg, ...) fprintf(stderr, "%s: " _msg "\n", dev_name(dev), ##__VA_ARGS__)
|
|
|
|
typedef struct {
|
|
char buf[10];
|
|
} fourcc_string;
|
|
|
|
fourcc_string fourcc_to_string(unsigned format);
|
|
unsigned fourcc_to_stride(unsigned width, unsigned format);
|
|
int xioctl(int fd, int request, void *arg);
|
|
|
|
#define E_XIOCTL(dev, _fd, _request, _value, _msg, ...) do { \
|
|
int ret; \
|
|
if ((ret = xioctl(_fd, _request, _value)) < 0) { \
|
|
E_LOG_ERROR(dev, "xioctl(ret=%d): " _msg, ret, ##__VA_ARGS__); \
|
|
} \
|
|
} while(0)
|