/* Init serial input */
int in_serial_init(struct flb_config *config)
{
int fd;
int ret;
struct flb_in_serial_config *ctx;
ctx = calloc(1, sizeof(struct flb_in_serial_config));
if (!ctx) {
perror("calloc");
return -1;
}
if (!config->file) {
flb_utils_error_c("serial input plugin needs configuration file");
return -1;
}
serial_config_read(ctx, config->file);
/* set context */
ret = flb_input_set_context("serial", ctx, config);
if (ret == -1) {
flb_utils_error_c("Could not set configuration for"
"serial input plugin");
}
if (ret == -1) {
flb_utils_error_c("Could not set collector for serial input plugin");
}
/* initialize MessagePack buffers */
msgpack_sbuffer_init(&ctx->mp_sbuf);
msgpack_packer_init(&ctx->mp_pck, &ctx->mp_sbuf, msgpack_sbuffer_write);
tcgetattr(fd, &ctx->tio_orig);
memset(&ctx->tio, 0, sizeof(ctx->tio));
switch (atoi(ctx->bitrate)) {
case 1200:
ctx->tio.c_cflag = B1200;
break;
case 2400:
ctx->tio.c_cflag = B2400;
break;
case 4800:
ctx->tio.c_cflag = B4800;
break;
case 9600:
ctx->tio.c_cflag = B9600;
break;
case 19200:
ctx->tio.c_cflag = B19200;
break;
case 38400:
ctx->tio.c_cflag = B38400;
break;
#ifdef __LINUX__
case 576000:
ctx->tio.c_cflag = B576000;
break;
case 115200:
ctx->tio.c_cflag = B115200;
break;
#endif
default:
flb_utils_error_c("Invalid bitrate for serial plugin");
}
ctx->tio.c_cflag |= CRTSCTS | CS8 | CLOCAL | CREAD;
ctx->tio.c_iflag = IGNPAR | IGNCR;
ctx->tio.c_oflag = 0;
ctx->tio.c_lflag = ICANON;
/* open device */
fd = open(ctx->file, O_RDWR | O_NOCTTY);
if (fd == -1) {
perror("open");
flb_utils_error_c("Could not open serial port device");
}
ctx->fd = fd;
tcflush(fd, TCIFLUSH);
tcsetattr(fd, TCSANOW, &ctx->tio);
/* Set our collector based on a file descriptor event */
ret = flb_input_set_collector_event("serial",
in_serial_collect,
ctx->fd,
config);
return 0;
}
/* Init serial input */
int in_serial_init(struct flb_config *config)
{
int fd;
int ret;
struct flb_in_serial_config *ctx;
ctx = calloc(1, sizeof(struct flb_in_serial_config));
if (!ctx) {
perror("calloc");
return -1;
}
if (!config->file) {
flb_utils_error_c("serial input plugin needs configuration file");
return -1;
}
serial_config_read(ctx, config->file);
/* set context */
ret = flb_input_set_context("serial", ctx, config);
if (ret == -1) {
flb_utils_error_c("Could not set configuration for"
"serial input plugin");
}
if (ret == -1) {
flb_utils_error_c("Could not set collector for serial input plugin");
}
/* initialize MessagePack buffers */
msgpack_sbuffer_init(&ctx->mp_sbuf);
msgpack_packer_init(&ctx->mp_pck, &ctx->mp_sbuf, msgpack_sbuffer_write);
tcgetattr(fd, &ctx->tio_orig);
memset(&ctx->tio, 0, sizeof(ctx->tio));
ctx->tio.c_cflag = ctx->tio.c_ispeed = ctx->tio.c_ospeed = atoi(ctx->bitrate);
ctx->tio.c_cflag |= CRTSCTS | CS8 | CLOCAL | CREAD;
ctx->tio.c_iflag = IGNPAR | IGNCR;
ctx->tio.c_oflag = 0;
ctx->tio.c_lflag = ICANON;
/* open device */
fd = open(ctx->file, O_RDWR | O_NOCTTY | O_NONBLOCK);
if (fd == -1) {
perror("open");
flb_utils_error_c("Could not open serial port device");
}
ctx->fd = fd;
tcflush(fd, TCIFLUSH);
tcsetattr(fd, TCSANOW, &ctx->tio);
#if __linux__
/* Set our collector based on a file descriptor event */
ret = flb_input_set_collector_event("serial",
in_serial_collect,
ctx->fd,
config);
#else
/* Set our collector based on a timer event */
ret = flb_input_set_collector_time("serial",
in_serial_collect,
IN_SERIAL_COLLECT_SEC,
IN_SERIAL_COLLECT_NSEC,
config);
#endif
return 0;
}
/* Init serial input */
int in_serial_init(struct flb_input_instance *in,
struct flb_config *config, void *data)
{
int fd;
int ret;
int br;
struct flb_in_serial_config *ctx;
(void) data;
ctx = calloc(1, sizeof(struct flb_in_serial_config));
if (!ctx) {
perror("calloc");
return -1;
}
if (!serial_config_read(ctx, in)) {
return -1;
}
/* set context */
flb_input_set_context(in, ctx);
/* initialize MessagePack buffers */
msgpack_sbuffer_init(&ctx->mp_sbuf);
msgpack_packer_init(&ctx->mp_pck, &ctx->mp_sbuf, msgpack_sbuffer_write);
/* open device */
fd = open(ctx->file, O_RDWR | O_NOCTTY | O_NONBLOCK);
if (fd == -1) {
perror("open");
flb_utils_error_c("Could not open serial port device");
}
ctx->fd = fd;
/* Store original settings */
tcgetattr(fd, &ctx->tio_orig);
/* Reset for new... */
memset(&ctx->tio, 0, sizeof(ctx->tio));
tcgetattr(fd, &ctx->tio);
br = atoi(ctx->bitrate);
cfsetospeed(&ctx->tio, (speed_t) flb_serial_speed(br));
cfsetispeed(&ctx->tio, (speed_t) flb_serial_speed(br));
/* Settings */
ctx->tio.c_cflag &= ~PARENB; /* 8N1 */
ctx->tio.c_cflag &= ~CSTOPB;
ctx->tio.c_cflag &= ~CSIZE;
ctx->tio.c_cflag |= CS8;
ctx->tio.c_cflag &= ~CRTSCTS; /* No flow control */
ctx->tio.c_cc[VMIN] = ctx->min_bytes; /* Min number of bytes to read */
ctx->tio.c_cflag |= CREAD | CLOCAL; /* Enable READ & ign ctrl lines */
tcflush(fd, TCIFLUSH);
tcsetattr(fd, TCSANOW, &ctx->tio);
#if __linux__
/* Set our collector based on a file descriptor event */
ret = flb_input_set_collector_event(in,
in_serial_collect,
ctx->fd,
config);
#else
/* Set our collector based on a timer event */
ret = flb_input_set_collector_time(in,
in_serial_collect,
IN_SERIAL_COLLECT_SEC,
IN_SERIAL_COLLECT_NSEC,
config);
#endif
return ret;
}
