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dddvb/apps/getiq.c

101 lines
2.0 KiB
C

#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <linux/types.h>
#include <getopt.h>
typedef uint8_t u8;
typedef uint16_t u16;
typedef int16_t s16;
typedef uint32_t u32;
typedef uint64_t u64;
#include "../ddbridge/ddbridge-mci.h"
#include "../ddbridge/ddbridge-ioctl.h"
void print_iq(struct mci_result *res, int fd)
{
dprintf(fd, "%d,%d\n", res->iq_symbol.i, res->iq_symbol.q);
}
int get_iq(int dev, uint32_t link, uint8_t demod, int fd)
{
struct ddb_mci_msg msg = {
.link = link,
.cmd.command = MCI_CMD_GET_IQSYMBOL,
.cmd.demod = demod,
.cmd.get_iq_symbol.tap = 0,
.cmd.get_iq_symbol.point = 0,
};
int ret;
int i;
ret = ioctl(dev, IOCTL_DDB_MCI_CMD, &msg);
if (ret < 0) {
printf("Error: %d %d\n", ret, errno);
return ret;
}
if (msg.res.status & 0x80) {
printf("MCI errror %02x\n", msg.res.status);
return ret;
}
print_iq(&msg.res, fd);
return ret;
}
#define SIZE_OF_ARRAY(a) (sizeof(a)/sizeof(a[0]))
int main(int argc, char*argv[])
{
char ddbname[80];
int fd = -1, all = 1, i, ret = 0, ddb;
char fn[128];
int32_t device = -1, demod = -1;
while (1) {
int cur_optind = optind ? optind : 1;
int option_index = 0;
int c;
static struct option long_options[] = {
{"device", required_argument, 0, 'd'},
{"demod", required_argument, 0, 'n'},
{0, 0, 0, 0}
};
c = getopt_long(argc, argv, "ad:n:",
long_options, &option_index);
if (c == -1)
break;
switch (c) {
case 'd':
device = strtoul(optarg, NULL, 0);
break;
case 'n':
demod = strtoul(optarg, NULL, 0);
break;
case 'a':
all = 1;
break;
default:
break;
}
}
if (optind < argc) {
printf("too many arguments\n");
exit(1);
}
sprintf(ddbname, "/dev/ddbridge/card%d", device);
ddb = open(ddbname, O_RDWR);
if (ddb < 0)
return -3;
for (i = 0; i < 20000; i++)
get_iq(ddb, 0, demod, 1);
}