DCB dcb;
#else
struct termios term;
- speed_t baud;
int rts;
+ int cts;
int dtr;
+ int dsr;
#endif
};
{
void *tmp;
unsigned int count;
+
for (count = 0; list[count]; count++);
if (!(tmp = realloc(list, sizeof(struct sp_port *) * (count + 2))))
goto fail;
goto fail;
list[count + 1] = NULL;
return list;
+
fail:
sp_free_port_list(list);
return NULL;
int ret = SP_OK;
if (!(list = malloc(sizeof(struct sp_port **))))
- return SP_ERR_MEM;;
+ return SP_ERR_MEM;
list[0] = NULL;
void sp_free_port_list(struct sp_port **list)
{
unsigned int i;
+
for (i = 0; list[i]; i++)
sp_free_port(list[i]);
free(list);
return SP_ERR_FAIL;
#else
int flags_local = 0;
+
/* Map 'flags' to the OS-specific settings. */
if (flags & SP_MODE_RDWR)
flags_local |= O_RDWR;
#ifdef _WIN32
DWORD written = 0;
+
/* Returns non-zero upon success, 0 upon failure. */
if (WriteFile(port->hdl, buf, count, &written, NULL) == 0)
return SP_ERR_FAIL;
#else
/* Returns the number of bytes written, or -1 upon failure. */
ssize_t written = write(port->fd, buf, count);
+
if (written < 0)
return SP_ERR_FAIL;
else
- return written;;
+ return written;
#endif
}
#ifdef _WIN32
DWORD bytes_read = 0;
+
/* Returns non-zero upon success, 0 upon failure. */
if (ReadFile(port->hdl, buf, count, &bytes_read, NULL) == 0)
return SP_ERR_FAIL;
return bytes_read;
#else
ssize_t bytes_read;
+
/* Returns the number of bytes read, or -1 upon failure. */
if ((bytes_read = read(port->fd, buf, count)) < 0)
return SP_ERR_FAIL;
return SP_ERR_ARG;
}
#else
+ speed_t baud;
switch (baudrate) {
case 50:
- data->baud = B50;
+ baud = B50;
break;
case 75:
- data->baud = B75;
+ baud = B75;
break;
case 110:
- data->baud = B110;
+ baud = B110;
break;
case 134:
- data->baud = B134;
+ baud = B134;
break;
case 150:
- data->baud = B150;
+ baud = B150;
break;
case 200:
- data->baud = B200;
+ baud = B200;
break;
case 300:
- data->baud = B300;
+ baud = B300;
break;
case 600:
- data->baud = B600;
+ baud = B600;
break;
case 1200:
- data->baud = B1200;
+ baud = B1200;
break;
case 1800:
- data->baud = B1800;
+ baud = B1800;
break;
case 2400:
- data->baud = B2400;
+ baud = B2400;
break;
case 4800:
- data->baud = B4800;
+ baud = B4800;
break;
case 9600:
- data->baud = B9600;
+ baud = B9600;
break;
case 19200:
- data->baud = B19200;
+ baud = B19200;
break;
case 38400:
- data->baud = B38400;
+ baud = B38400;
break;
case 57600:
- data->baud = B57600;
+ baud = B57600;
break;
case 115200:
- data->baud = B115200;
+ baud = B115200;
break;
case 230400:
- data->baud = B230400;
+ baud = B230400;
break;
#if !defined(__APPLE__) && !defined(__OpenBSD__)
case 460800:
- data->baud = B460800;
+ baud = B460800;
break;
#endif
default:
return SP_ERR_ARG;
}
+
+ if (cfsetospeed(&data->term, baud) < 0)
+ return SP_ERR_FAIL;
+
+ if (cfsetispeed(&data->term, baud) < 0)
+ return SP_ERR_FAIL;
+
#endif
return SP_OK;
}
return SP_OK;
}
-static int set_flowcontrol(struct sp_port_data *data, int flowcontrol)
+static int set_rts(struct sp_port_data *data, int rts)
{
-#ifndef _WIN32
- data->term.c_iflag &= ~(IXON | IXOFF | IXANY);
- data->term.c_cflag &= ~CRTSCTS;
- switch (flowcontrol) {
- case 0:
- /* No flow control. */
+#ifdef _WIN32
+ switch (rts) {
+ case SP_RTS_OFF:
+ data->dcb.fRtsControl = RTS_CONTROL_DISABLE;
break;
- case 1:
- data->term.c_cflag |= CRTSCTS;
+ case SP_RTS_ON:
+ data->dcb.fRtsControl = RTS_CONTROL_ENABLE;
break;
- case 2:
- data->term.c_iflag |= IXON | IXOFF | IXANY;
+ case SP_RTS_FLOW_CONTROL:
+ data->dcb.fRtsControl = RTS_CONTROL_HANDSHAKE;
break;
default:
return SP_ERR_ARG;
}
+#else
+ data->rts = rts;
#endif
return SP_OK;
}
-static int set_rts(struct sp_port_data *data, int rts)
+static int set_cts(struct sp_port_data *data, int cts)
{
#ifdef _WIN32
- if (rts != -1) {
- if (rts)
- data->dcb.fRtsControl = RTS_CONTROL_ENABLE;
- else
- data->dcb.fRtsControl = RTS_CONTROL_DISABLE;
+ switch (cts) {
+ case SP_CTS_IGNORE:
+ data->dcb.fOutxCtsFlow = FALSE;
+ break;
+ case SP_CTS_FLOW_CONTROL:
+ data->dcb.fOutxCtsFlow = TRUE;
+ break;
+ default:
+ return SP_ERR_ARG;
}
#else
- data->rts = rts;
+ data->cts = cts;
#endif
return SP_OK;
}
static int set_dtr(struct sp_port_data *data, int dtr)
{
#ifdef _WIN32
- if (dtr != -1) {
- if (dtr)
- data->dcb.fDtrControl = DTR_CONTROL_ENABLE;
- else
- data->dcb.fDtrControl = DTR_CONTROL_DISABLE;
+ switch (dtr) {
+ case SP_DTR_OFF:
+ data->dcb.fDtrControl = DTR_CONTROL_DISABLE;
+ break;
+ case SP_DTR_ON:
+ data->dcb.fDtrControl = DTR_CONTROL_ENABLE;
+ break;
+ case SP_DTR_FLOW_CONTROL:
+ data->dcb.fDtrControl = DTR_CONTROL_HANDSHAKE;
+ break;
+ default:
+ return SP_ERR_ARG;
}
#else
data->dtr = dtr;
return SP_OK;
}
+static int set_dsr(struct sp_port_data *data, int dsr)
+{
+#ifdef _WIN32
+ switch (dsr) {
+ case SP_DSR_IGNORE:
+ data->dcb.fOutxDsrFlow = FALSE;
+ break;
+ case SP_DSR_FLOW_CONTROL:
+ data->dcb.fOutxDsrFlow = TRUE;
+ break;
+ default:
+ return SP_ERR_ARG;
+ }
+#else
+ data->dsr = dsr;
+#endif
+ return SP_OK;
+}
+
+static int set_xon_xoff(struct sp_port_data *data, int xon_xoff)
+{
+#ifdef _WIN32
+ switch (xon_xoff) {
+ case SP_XONXOFF_DISABLED:
+ data->dcb.fInX = FALSE;
+ data->dcb.fOutX = FALSE;
+ break;
+ case SP_XONXOFF_IN:
+ data->dcb.fInX = TRUE;
+ data->dcb.fOutX = FALSE;
+ break;
+ case SP_XONXOFF_OUT:
+ data->dcb.fInX = FALSE;
+ data->dcb.fOutX = TRUE;
+ break;
+ case SP_XONXOFF_INOUT:
+ data->dcb.fInX = TRUE;
+ data->dcb.fOutX = TRUE;
+ break;
+ default:
+ return SP_ERR_ARG;
+ }
+#else
+ data->term.c_iflag &= ~(IXON | IXOFF | IXANY);
+ switch (xon_xoff) {
+ case SP_XONXOFF_DISABLED:
+ break;
+ case SP_XONXOFF_IN:
+ data->term.c_iflag |= IXOFF;
+ break;
+ case SP_XONXOFF_OUT:
+ data->term.c_iflag |= IXON | IXANY;
+ break;
+ case SP_XONXOFF_INOUT:
+ data->term.c_iflag |= IXON | IXOFF | IXANY;
+ break;
+ default:
+ return SP_ERR_ARG;
+ }
+#endif
+ return SP_OK;
+}
+
static int apply_config(struct sp_port *port, struct sp_port_data *data)
{
#ifdef _WIN32
/* Ignore modem status lines; enable receiver */
data->term.c_cflag |= (CLOCAL | CREAD);
- /* Write the configured settings. */
- if (tcsetattr(port->fd, TCSADRAIN, &data->term) < 0)
- return SP_ERR_FAIL;
-
- if (cfsetospeed(&data->term, data->baud) < 0)
- return SP_ERR_FAIL;
+ /* Asymmetric use of RTS/CTS not supported yet. */
+ if ((data->rts == SP_RTS_FLOW_CONTROL) != (data->cts == SP_CTS_FLOW_CONTROL))
+ return SP_ERR_ARG;
- if (cfsetispeed(&data->term, data->baud) < 0)
- return SP_ERR_FAIL;
+ /* DTR/DSR flow control not supported yet. */
+ if (data->dtr == SP_DTR_FLOW_CONTROL || data->dsr == SP_DSR_FLOW_CONTROL)
+ return SP_ERR_ARG;
- if (data->rts != -1) {
+ if (data->rts == SP_RTS_FLOW_CONTROL)
+ data->term.c_iflag |= CRTSCTS;
+ else
+ {
controlbits = TIOCM_RTS;
- if (ioctl(port->fd, data->rts ? TIOCMBIS : TIOCMBIC,
+ if (ioctl(port->fd, data->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC,
&controlbits) < 0)
return SP_ERR_FAIL;
}
- if (data->dtr != -1) {
- controlbits = TIOCM_DTR;
- if (ioctl(port->fd, data->dtr ? TIOCMBIS : TIOCMBIC,
- &controlbits) < 0)
- return SP_ERR_FAIL;
- }
+ controlbits = TIOCM_DTR;
+ if (ioctl(port->fd, data->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC,
+ &controlbits) < 0)
+ return SP_ERR_FAIL;
+
+ /* Write the configured settings. */
+ if (tcsetattr(port->fd, TCSADRAIN, &data->term) < 0)
+ return SP_ERR_FAIL;
#endif
return SP_OK;
}
#define TRY(x) do { int ret = x; if (ret != SP_OK) return ret; } while (0)
+#define TRY_SET(x) do { if (config->x >= 0) TRY(set_##x(&data, config->x)); } while (0)
-int sp_set_params(struct sp_port *port, int baudrate, int bits, int parity,
- int stopbits, int flowcontrol, int rts, int dtr)
+int sp_set_config(struct sp_port *port, struct sp_port_config *config)
{
struct sp_port_data data;
TRY(start_config(port, &data));
- TRY(set_baudrate(&data, baudrate));
- TRY(set_bits(&data, bits));
- TRY(set_parity(&data, parity));
- TRY(set_stopbits(&data, stopbits));
- TRY(set_flowcontrol(&data, flowcontrol));
- TRY(set_rts(&data, rts));
- TRY(set_dtr(&data, dtr));
+ TRY_SET(baudrate);
+ TRY_SET(bits);
+ TRY_SET(parity);
+ TRY_SET(stopbits);
+ TRY_SET(rts);
+ TRY_SET(cts);
+ TRY_SET(dtr);
+ TRY_SET(dsr);
+ TRY_SET(xon_xoff);
TRY(apply_config(port, &data));
return SP_OK;
projects / libserialport.git / blobdiff