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#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <systemd/sd-bus.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "utils.h"
#include "shared.h"
#include "rcm-server-main.h"
#include "rcm-server-lirc.h"
void
lirc_write(int fd, const uint32_t *v, unsigned count)
{
unsigned nv[count];
unsigned i;
size_t l = count * sizeof(uint32_t);
for (i = 0; i < count; i++)
nv[i] = v[i];
printf("Write to lirc fd of %zu bytes returned %zi errno is %i aka %s\n",
l, write(fd, nv, l), errno, strerror(errno));
}
static int
lirc_read(sd_event_source *s, int fd, uint32_t revents, void *userdata)
{
struct device *device = userdata;
uint8_t buf[100];
ssize_t bytes_read;
if (fd != device->lirc_fd)
fprintf(stderr, "lirc fd mismatch: %i != %i\n", device->lirc_fd, fd);
if (revents & EPOLLHUP) {
fprintf(stderr, "lirc connection closed!\n");
lirc_close(device);
return 0;
}
if (!(revents & EPOLLIN)) {
fprintf(stderr, "unexpected lirc event: %" PRIu32 "\n", revents);
return 0;
}
while ((bytes_read = read(fd, buf, sizeof(buf))) > 0)
printf("Read %zi bytes from lirc dev\n", bytes_read);
return 0;
}
int
lirc_setup(struct device *device, const char *path)
{
int r;
if (!device)
return -EINVAL;
if (device->lirc_fd >= 0) {
printf("Multiple lirc devices!?\n");
return 0;
}
device->lirc_fd = open(path, O_RDWR | O_NONBLOCK);
if (device->lirc_fd < 0) {
printf("Failed to open lirc device %s: %s\n", path, strerror(errno));
return -errno;
}
if (sd_event_add_io(device->mgr->event, &device->lirc_ev,
device->lirc_fd, EPOLLIN, lirc_read, device) < 0) {
printf("Failed to add event source for lirc device %s: %s\n",
path, strerror(errno));
r = -errno;
lirc_close(device);
return r;
}
return 0;
}
void
lirc_close(struct device *device)
{
if (!device)
return;
if (device->lirc_fd < 0)
return;
close(device->lirc_fd);
device->lirc_fd = -1;
}
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