Factor out lirc code to a separate file

1 files changed, 86 insertions, 0 deletions

diff --git a/rcm-server-lirc.c b/rcm-server-lirc.c
new file mode 100644
index 0000000..150df8b
--- /dev/null
+++ b/rcm-server-lirc.c
@@ -0,0 +1,86 @@
+#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));
+}
+
+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");
+		close(fd);
+		device->lirc_fd = -1;
+		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)
+{
+	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));
+		close(device->lirc_fd);
+		device->lirc_fd = -1;
+		return -errno;
+	}
+
+	return 0;
+}
+