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serial: Initial code for setting DTR/RTS. 

Currently disabled until option parsing is in place.
This commit is contained in:
Uwe Hermann 2012-11-26 17:01:15 +01:00
parent 6b7ace4832
commit 700dcd5caa
1 changed files with 21 additions and 1 deletions
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22
hardware/common/serial.c
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@ -32,6 +32,7 @@
#endif
#include <stdlib.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <glib.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"
@ -285,7 +286,6 @@ SR_PRIV int serial_read(struct sr_serial_dev_inst *serial, void *buf,
SR_PRIV int serial_set_params(struct sr_serial_dev_inst *serial, int baudrate,
int bits, int parity, int stopbits, int flowcontrol)
{
if (!serial) {
sr_dbg("Invalid serial port.");
return SR_ERR;
@ -341,6 +341,7 @@ SR_PRIV int serial_set_params(struct sr_serial_dev_inst *serial, int baudrate,
#else
struct termios term;
speed_t baud;
int ret, controlbits;
if (tcgetattr(serial->fd, &term) < 0) {
sr_err("tcgetattr() error on port %s (fd %d): %s.",
@ -504,6 +505,25 @@ SR_PRIV int serial_set_params(struct sr_serial_dev_inst *serial, int baudrate,
sr_err("tcsetattr() error: %s.", strerror(errno));
return SR_ERR;
}
#if 0
/* TODO: Make configurable via driver options. */
sr_spew("Configuring RTS to 1/high.");
controlbits = TIOCM_RTS;
if ((ret = ioctl(serial->fd, TIOCMBIC, &controlbits)) < 0) {
sr_err("Error setting RTS to 1: %s.", strerror(errno));
return SR_ERR;
}
sr_spew("Configuring DTR to 0/low.");
controlbits = TIOCM_DTR;
if ((ret = ioctl(serial->fd, TIOCMBIS, &controlbits)) < 0) {
sr_err("Error setting DTR to 0: %s.", strerror(errno));
return SR_ERR;
}
#endif
#endif
return SR_OK;