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add new modulator test program

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This commit is contained in:
Ralph Metzler 2017-10-12 14:22:38 +02:00
parent 6ca3e2f2b3
commit 0f4beb4e64
2 changed files with 81 additions and 1 deletions
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5
apps/Makefile
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@ -1,4 +1,4 @@
all: cit citin flashprog modt ddtest setmod ddflash setmod2 pls
all: cit citin flashprog modt ddtest setmod ddflash setmod2 pls setmod3
cit: cit.c
$(CC) -o cit cit.c -lpthread
@ -12,6 +12,9 @@ setmod: setmod.c
setmod2: setmod2.c
$(CC) -o setmod2 setmod2.c -I../include/
setmod3: setmod3.c
$(CC) -o setmod3 setmod3.c -I../include/
flashprog: flashprog.c
$(CC) -o flashprog flashprog.c

77
apps/setmod3.c Normal file
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@ -0,0 +1,77 @@
#include <errno.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdint.h>
#include <stdlib.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <linux/dvb/mod.h>
static int set_property(int fd, uint32_t cmd, uint32_t data)
{
struct dtv_property p;
struct dtv_properties c;
int ret;
p.cmd = cmd;
c.num = 1;
c.props = &p;
p.u.data = data;
ret = ioctl(fd, FE_SET_PROPERTY, &c);
if (ret < 0) {
fprintf(stderr, "FE_SET_PROPERTY returned %d\n", errno);
return -1;
}
return 0;
}
static int get_property(int fd, uint32_t cmd, uint32_t *data)
{
struct dtv_property p;
struct dtv_properties c;
int ret;
p.cmd = cmd;
c.num = 1;
c.props = &p;
ret = ioctl(fd, FE_GET_PROPERTY, &c);
if (ret < 0) {
fprintf(stderr, "FE_GET_PROPERTY returned %d\n", ret);
return -1;
}
*data = p.u.data;
return 0;
}
int main()
{
int fd;
struct dvb_mod_params mp;
struct dvb_mod_channel_params mc;
uint32_t data;
fd = open("/dev/dvb/adapter0/mod0", O_RDONLY);
/* gain 0-255 */
get_property(fd, MODULATOR_GAIN, &data);
printf("Modulator gain = %u\n", data);
set_property(fd, MODULATOR_GAIN, 120);
get_property(fd, MODULATOR_GAIN, &data);
printf("Modulator gain = %u\n", data);
get_property(fd, MODULATOR_STATUS, &data);
printf("Modulator status = %u\n", data);
//set_property(fd, MODULATOR_RESET, 0);
close(fd);
}