#include "libserialport.h"
+struct sp_port {
+ char *name;
+ int nonblocking;
+#ifdef _WIN32
+ HANDLE hdl;
+ OVERLAPPED write_ovl;
+ BYTE *write_buf;
+ BOOL writing;
+#else
+ int fd;
+#endif
+};
+
+struct sp_port_config {
+ int baudrate;
+ int bits;
+ enum sp_parity parity;
+ int stopbits;
+ enum sp_rts rts;
+ enum sp_cts cts;
+ enum sp_dtr dtr;
+ enum sp_dsr dsr;
+ enum sp_xonxoff xon_xoff;
+};
+
struct port_data {
#ifdef _WIN32
DCB dcb;
#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
#define NUM_STD_BAUDRATES ARRAY_SIZE(std_baudrates)
-#define TRY(x) do { int ret = x; if (ret != SP_OK) return ret; } while (0)
-
/* Debug output macros. */
#define DEBUG(fmt, ...) do { if (sp_debug_handler) sp_debug_handler(fmt ".\n", ##__VA_ARGS__); } while (0)
#define DEBUG_ERROR(err, msg) DEBUG("%s returning " #err ": " msg, __func__)
#define RETURN_FAIL(msg) do { DEBUG_FAIL(msg); return SP_ERR_FAIL; } while (0)
#define RETURN_VALUE(fmt, x) do { DEBUG("%s returning " fmt, __func__, x); return x; } while (0)
#define SET_ERROR(val, err, msg) do { DEBUG_ERROR(err, msg); val = err; } while (0)
-#define SET_FAIL(val, msg) do { DEBUG_FAIL(msg); val = err; } while (0)
+#define SET_FAIL(val, msg) do { DEBUG_FAIL(msg); val = SP_ERR_FAIL; } while (0)
#define TRACE(fmt, ...) DEBUG("%s(" fmt ") called", __func__, ##__VA_ARGS__)
+#define TRY(x) do { int ret = x; if (ret != SP_OK) RETURN_CODEVAL(ret); } while (0)
+
/* Helper functions. */
static struct sp_port **list_append(struct sp_port **list, const char *portname);
static enum sp_return get_config(struct sp_port *port, struct port_data *data,
if (!portname)
RETURN_ERROR(SP_ERR_ARG, "Null port name");
+ DEBUG("Building structure for port %s", portname);
+
if (!(port = malloc(sizeof(struct sp_port))))
RETURN_ERROR(SP_ERR_MEM, "Port structure malloc failed");
RETURN_OK();
}
+char *sp_get_port_name(const struct sp_port *port)
+{
+ TRACE("%p", port);
+
+ if (!port)
+ return NULL;
+
+ RETURN_VALUE("%s", port->name);
+}
+
+enum sp_return sp_get_port_handle(const struct sp_port *port, void *result_ptr)
+{
+ TRACE("%p", port);
+
+ if (!port)
+ RETURN_ERROR(SP_ERR_ARG, "Null port");
+
+#ifdef _WIN32
+ HANDLE *handle_ptr = result_ptr;
+ *handle_ptr = port->hdl;
+#else
+ int *fd_ptr = result_ptr;
+ *fd_ptr = port->fd;
+#endif
+
+ RETURN_OK();
+}
+
enum sp_return sp_copy_port(const struct sp_port *port, struct sp_port **copy_ptr)
{
TRACE("%p, %p", port, copy_ptr);
if (!port->name)
RETURN_ERROR(SP_ERR_ARG, "Null port name");
+ DEBUG("Copying port structure");
+
RETURN_VALUE("%p", sp_get_port_by_name(port->name, copy_ptr));
}
RETURN();
}
+ DEBUG("Freeing port structure");
+
if (port->name)
free(port->name);
enum sp_return sp_list_ports(struct sp_port ***list_ptr)
{
struct sp_port **list;
- int ret = SP_OK;
+ int ret = SP_ERR_SUPP;
TRACE("%p", list_ptr);
+ if (!list_ptr)
+ RETURN_ERROR(SP_ERR_ARG, "Null result pointer");
+
+ DEBUG("Enumerating ports");
+
if (!(list = malloc(sizeof(struct sp_port **))))
RETURN_ERROR(SP_ERR_MEM, "Port list malloc failed");
char *name;
int name_len;
+ ret = SP_OK;
+
+ DEBUG("Opening registry key");
if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("HARDWARE\\DEVICEMAP\\SERIALCOMM"),
0, KEY_QUERY_VALUE, &key) != ERROR_SUCCESS) {
SET_FAIL(ret, "RegOpenKeyEx() failed");
goto out_done;
}
+ DEBUG("Querying registry key value and data sizes");
if (RegQueryInfoKey(key, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
&max_value_len, &max_data_size, NULL, NULL) != ERROR_SUCCESS) {
SET_FAIL(ret, "RegQueryInfoKey() failed");
SET_ERROR(ret, SP_ERR_MEM, "registry data malloc failed");
goto out_free_value;
}
+ DEBUG("Iterating over values");
while (
value_len = max_value_len + 1,
data_size = max_data_size,
CFTypeRef cf_path;
Boolean result;
+ ret = SP_OK;
+
+ DEBUG("Getting IOKit master port");
if (IOMasterPort(MACH_PORT_NULL, &master) != KERN_SUCCESS) {
SET_FAIL(ret, "IOMasterPort() failed");
goto out_done;
}
+ DEBUG("Creating matching dictionary");
if (!(classes = IOServiceMatching(kIOSerialBSDServiceValue))) {
SET_FAIL(ret, "IOServiceMatching() failed");
goto out_done;
CFDictionarySetValue(classes,
CFSTR(kIOSerialBSDTypeKey), CFSTR(kIOSerialBSDAllTypes));
+ DEBUG("Getting matching services");
if (IOServiceGetMatchingServices(master, classes, &iter) != KERN_SUCCESS) {
SET_FAIL(ret, "IOServiceGetMatchingServices() failed");
goto out_done;
goto out_release;
}
+ DEBUG("Iterating over results");
while ((port = IOIteratorNext(iter))) {
cf_path = IORegistryEntryCreateCFProperty(port,
CFSTR(kIOCalloutDeviceKey), kCFAllocatorDefault, 0);
int fd, ioctl_result;
struct serial_struct serial_info;
+ ret = SP_OK;
+
+ DEBUG("Enumerating tty devices");
ud = udev_new();
ud_enumerate = udev_enumerate_new(ud);
udev_enumerate_add_match_subsystem(ud_enumerate, "tty");
udev_enumerate_scan_devices(ud_enumerate);
ud_list = udev_enumerate_get_list_entry(ud_enumerate);
+ DEBUG("Iterating over results");
udev_list_entry_foreach(ud_entry, ud_list) {
path = udev_list_entry_get_name(ud_entry);
+ DEBUG("Found device %s", path);
ud_dev = udev_device_new_from_syspath(ud, path);
/* If there is no parent device, this is a virtual tty. */
ud_parent = udev_device_get_parent(ud_dev);
if (ud_parent == NULL) {
+ DEBUG("No parent device, assuming virtual tty");
udev_device_unref(ud_dev);
continue;
}
* is to try to open them and make an ioctl call. */
driver = udev_device_get_driver(ud_parent);
if (driver && !strcmp(driver, "serial8250")) {
- if ((fd = open(name, O_RDWR | O_NONBLOCK | O_NOCTTY)) < 0)
+ DEBUG("serial8250 device, attempting to open");
+ if ((fd = open(name, O_RDWR | O_NONBLOCK | O_NOCTTY)) < 0) {
+ DEBUG("open failed, skipping");
goto skip;
+ }
ioctl_result = ioctl(fd, TIOCGSERIAL, &serial_info);
close(fd);
- if (ioctl_result != 0)
+ if (ioctl_result != 0) {
+ DEBUG("ioctl failed, skipping");
goto skip;
- if (serial_info.type == PORT_UNKNOWN)
+ }
+ if (serial_info.type == PORT_UNKNOWN) {
+ DEBUG("port type is unknown, skipping");
goto skip;
+ }
}
DEBUG("Found port %s", name);
list = list_append(list, name);
udev_unref(ud);
#endif
- if (ret == SP_OK) {
+ switch (ret) {
+ case SP_OK:
*list_ptr = list;
RETURN_OK();
- } else {
+ case SP_ERR_SUPP:
+ DEBUG_ERROR(SP_ERR_SUPP, "Enumeration not supported on this platform.");
+ default:
if (list)
sp_free_port_list(list);
*list_ptr = NULL;
TRACE("%p", list);
+ if (!list) {
+ DEBUG("Null list");
+ RETURN();
+ }
+
+ DEBUG("Freeing port list");
+
for (i = 0; list[i]; i++)
sp_free_port(list[i]);
free(list);
RETURN();
}
-#ifdef _WIN32
#define CHECK_PORT() do { \
if (port == NULL) \
RETURN_ERROR(SP_ERR_ARG, "Null port"); \
+ if (port->name == NULL) \
+ RETURN_ERROR(SP_ERR_ARG, "Null port name"); \
+} while (0)
+#ifdef _WIN32
+#define CHECK_PORT_HANDLE() do { \
if (port->hdl == INVALID_HANDLE_VALUE) \
RETURN_ERROR(SP_ERR_ARG, "Invalid port handle"); \
-} while(0);
+} while (0)
#else
-#define CHECK_PORT() do { \
- if (port == NULL) \
- RETURN_ERROR(SP_ERR_ARG, "Null port"); \
+#define CHECK_PORT_HANDLE() do { \
if (port->fd < 0) \
RETURN_ERROR(SP_ERR_ARG, "Invalid port fd"); \
-} while(0);
+} while (0)
#endif
+#define CHECK_OPEN_PORT() do { \
+ CHECK_PORT(); \
+ CHECK_PORT_HANDLE(); \
+} while (0)
enum sp_return sp_open(struct sp_port *port, enum sp_mode flags)
{
TRACE("%p, %x", port, flags);
- if (!port)
- RETURN_ERROR(SP_ERR_ARG, "Null port");
+ CHECK_PORT();
+
+ if (flags > (SP_MODE_READ | SP_MODE_WRITE | SP_MODE_NONBLOCK))
+ RETURN_ERROR(SP_ERR_ARG, "Invalid flags");
+
+ DEBUG("Opening port %s", port->name);
+
+ port->nonblocking = (flags & SP_MODE_NONBLOCK) ? 1 : 0;
#ifdef _WIN32
DWORD desired_access = 0, flags_and_attributes = 0;
+ COMMTIMEOUTS timeouts;
char *escaped_port_name;
/* Prefix port name with '\\.\' to work with ports above COM9. */
if (port->hdl == INVALID_HANDLE_VALUE)
RETURN_FAIL("CreateFile() failed");
+
+ /* All timeouts disabled. */
+ timeouts.ReadIntervalTimeout = 0;
+ timeouts.ReadTotalTimeoutMultiplier = 0;
+ timeouts.ReadTotalTimeoutConstant = 0;
+ timeouts.WriteTotalTimeoutMultiplier = 0;
+ timeouts.WriteTotalTimeoutConstant = 0;
+
+ if (port->nonblocking) {
+ /* Set read timeout such that all reads return immediately. */
+ timeouts.ReadIntervalTimeout = MAXDWORD;
+ /* Prepare OVERLAPPED structure for non-blocking writes. */
+ memset(&port->write_ovl, 0, sizeof(port->write_ovl));
+ if (!(port->write_ovl.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL))) {
+ sp_close(port);
+ RETURN_FAIL("CreateEvent() failed");
+ }
+ port->write_buf = NULL;
+ port->writing = FALSE;
+ }
+
+ if (SetCommTimeouts(port->hdl, &timeouts) == 0) {
+ sp_close(port);
+ RETURN_FAIL("SetCommTimeouts() failed");
+ }
#else
int flags_local = 0;
struct port_data data;
{
TRACE("%p", port);
- CHECK_PORT();
+ CHECK_OPEN_PORT();
+
+ DEBUG("Closing port %s", port->name);
#ifdef _WIN32
/* Returns non-zero upon success, 0 upon failure. */
if (CloseHandle(port->hdl) == 0)
RETURN_FAIL("CloseHandle() failed");
port->hdl = INVALID_HANDLE_VALUE;
+ if (port->nonblocking) {
+ if (port->writing)
+ /* Write should have been stopped by closing the port, so safe to free buffer. */
+ free(port->write_buf);
+ /* Close event handle created for overlapped writes. */
+ if (CloseHandle(port->write_ovl.hEvent) == 0)
+ RETURN_FAIL("CloseHandle() failed");
+ }
#else
/* Returns 0 upon success, -1 upon failure. */
if (close(port->fd) == -1)
{
TRACE("%p, %x", port, buffers);
- CHECK_PORT();
+ CHECK_OPEN_PORT();
+
+ if (buffers > SP_BUF_BOTH)
+ RETURN_ERROR(SP_ERR_ARG, "Invalid buffer selection");
+
+ const char *buffer_names[] = {"no", "input", "output", "both"};
+
+ DEBUG("Flushing %s buffers on port %s", buffer_names[buffers], port->name);
#ifdef _WIN32
DWORD flags = 0;
{
TRACE("%p", port);
- CHECK_PORT();
+ CHECK_OPEN_PORT();
+
+ DEBUG("Draining port %s", port->name);
#ifdef _WIN32
/* Returns non-zero upon success, 0 upon failure. */
{
TRACE("%p, %p, %d", port, buf, count);
- CHECK_PORT();
+ CHECK_OPEN_PORT();
if (!buf)
RETURN_ERROR(SP_ERR_ARG, "Null buffer");
+ DEBUG("Writing up to %d bytes to port %s", count, port->name);
+
+ if (count == 0)
+ RETURN_VALUE("0", 0);
+
#ifdef _WIN32
DWORD written = 0;
- /* Returns non-zero upon success, 0 upon failure. */
- if (WriteFile(port->hdl, buf, count, &written, NULL) == 0)
- RETURN_FAIL("WriteFile() failed");
+ if (port->nonblocking) {
+ /* Non-blocking write. */
+
+ /* Check whether previous write is complete. */
+ if (port->writing) {
+ if (HasOverlappedIoCompleted(&port->write_ovl)) {
+ DEBUG("Previous write completed");
+ port->writing = 0;
+ free(port->write_buf);
+ port->write_buf = NULL;
+ } else {
+ DEBUG("Previous write not complete");
+ /* Can't take a new write until the previous one finishes. */
+ RETURN_VALUE("0", 0);
+ }
+ }
+
+ /* Copy user buffer. */
+ if (!(port->write_buf = malloc(count)))
+ RETURN_ERROR(SP_ERR_MEM, "buffer copy malloc failed");
+ memcpy(port->write_buf, buf, count);
+
+ /* Start asynchronous write. */
+ if (WriteFile(port->hdl, buf, count, NULL, &port->write_ovl) == 0) {
+ if (GetLastError() == ERROR_IO_PENDING) {
+ DEBUG("Asynchronous write started");
+ port->writing = 1;
+ RETURN_VALUE("%d", count);
+ } else {
+ free(port->write_buf);
+ port->write_buf = NULL;
+ /* Actual failure of some kind. */
+ RETURN_FAIL("WriteFile() failed");
+ }
+ } else {
+ DEBUG("Write completed immediately");
+ free(port->write_buf);
+ port->write_buf = NULL;
+ RETURN_VALUE("%d", count);
+ }
+ } else {
+ /* Blocking write. */
+ if (WriteFile(port->hdl, buf, count, &written, NULL) == 0) {
+ RETURN_FAIL("WriteFile() failed");
+ }
+ }
+
RETURN_VALUE("%d", written);
#else
/* Returns the number of bytes written, or -1 upon failure. */
{
TRACE("%p, %p, %d", port, buf, count);
- CHECK_PORT();
+ CHECK_OPEN_PORT();
if (!buf)
RETURN_ERROR(SP_ERR_ARG, "Null buffer");
+ DEBUG("Reading up to %d bytes from port %s", count, port->name);
+
#ifdef _WIN32
DWORD bytes_read = 0;
ssize_t bytes_read;
/* Returns the number of bytes read, or -1 upon failure. */
- if ((bytes_read = read(port->fd, buf, count)) < 0)
- RETURN_FAIL("read() failed");
+ if ((bytes_read = read(port->fd, buf, count)) < 0) {
+ if (port->nonblocking && errno == EAGAIN)
+ /* Port is opened in nonblocking mode and there are no bytes available. */
+ bytes_read = 0;
+ else
+ /* This is an actual failure. */
+ RETURN_FAIL("read() failed");
+ }
RETURN_VALUE("%d", bytes_read);
#endif
}
TRACE("%d, %p", fd, baudrate);
+ DEBUG("Getting baud rate");
+
if (!(data = malloc(get_termios_size())))
RETURN_ERROR(SP_ERR_MEM, "termios malloc failed");
TRACE("%d, %d", fd, baudrate);
+ DEBUG("Getting baud rate");
+
if (!(data = malloc(get_termios_size())))
RETURN_ERROR(SP_ERR_MEM, "termios malloc failed");
RETURN_FAIL("getting termios failed");
}
+ DEBUG("Setting baud rate");
+
set_termios_speed(data, baudrate);
if (ioctl(fd, get_termios_set_ioctl(), data) < 0) {
TRACE("%d, %p", fd, flow);
+ DEBUG("Getting advanced flow control");
+
if (!(data = malloc(get_termiox_size())))
RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed");
TRACE("%d, %d", fd, flow);
+ DEBUG("Getting advanced flow control");
+
if (!(data = malloc(get_termiox_size())))
RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed");
RETURN_FAIL("getting termiox failed");
}
+ DEBUG("Setting advanced flow control");
+
set_termiox_flow(data, flow);
if (ioctl(fd, TCSETX, data) < 0) {
TRACE("%p, %p, %p", port, data, config);
+ DEBUG("Getting configuration for port %s", port->name);
+
#ifdef _WIN32
if (!GetCommState(port->hdl, &data->dcb))
RETURN_FAIL("GetCommState() failed");
TRACE("%p, %p, %p", port, data, config);
+ DEBUG("Setting configuration for port %s", port->name);
+
#ifdef _WIN32
if (config->baudrate >= 0) {
for (i = 0; i < NUM_STD_BAUDRATES; i++) {
RETURN_OK();
}
+enum sp_return sp_new_config(struct sp_port_config **config_ptr)
+{
+ TRACE("%p", config_ptr);
+ struct sp_port_config *config;
+
+ if (!config_ptr)
+ RETURN_ERROR(SP_ERR_ARG, "Null result pointer");
+
+ *config_ptr = NULL;
+
+ if (!(config = malloc(sizeof(struct sp_port_config))))
+ RETURN_ERROR(SP_ERR_MEM, "config malloc failed");
+
+ config->baudrate = -1;
+ config->bits = -1;
+ config->parity = -1;
+ config->stopbits = -1;
+ config->rts = -1;
+ config->cts = -1;
+ config->dtr = -1;
+ config->dsr = -1;
+
+ *config_ptr = config;
+
+ RETURN_OK();
+}
+
+void sp_free_config(struct sp_port_config *config)
+{
+ TRACE("%p", config);
+
+ if (!config)
+ DEBUG("Null config");
+ else
+ free(config);
+
+ RETURN();
+}
+
+enum sp_return sp_get_config(struct sp_port *port, struct sp_port_config *config)
+{
+ struct port_data data;
+
+ TRACE("%p, %p", port, config);
+
+ CHECK_OPEN_PORT();
+
+ if (!config)
+ RETURN_ERROR(SP_ERR_ARG, "Null config");
+
+ TRY(get_config(port, &data, config));
+
+ RETURN_OK();
+}
+
enum sp_return sp_set_config(struct sp_port *port, const struct sp_port_config *config)
{
struct port_data data;
TRACE("%p, %p", port, config);
- CHECK_PORT();
+ CHECK_OPEN_PORT();
if (!config)
RETURN_ERROR(SP_ERR_ARG, "Null config");
RETURN_OK();
}
-#define CREATE_SETTER(x, type) int sp_set_##x(struct sp_port *port, type x) { \
+#define CREATE_ACCESSORS(x, type) \
+enum sp_return sp_set_##x(struct sp_port *port, type x) { \
struct port_data data; \
struct sp_port_config config; \
TRACE("%p, %d", port, x); \
- CHECK_PORT(); \
+ CHECK_OPEN_PORT(); \
TRY(get_config(port, &data, &config)); \
config.x = x; \
TRY(set_config(port, &data, &config)); \
RETURN_OK(); \
+} \
+enum sp_return sp_get_config_##x(const struct sp_port_config *config, type *x) { \
+ TRACE("%p", config); \
+ if (!config) \
+ RETURN_ERROR(SP_ERR_ARG, "Null config"); \
+ *x = config->x; \
+ RETURN_OK(); \
+} \
+enum sp_return sp_set_config_##x(struct sp_port_config *config, type x) { \
+ TRACE("%p, %d", config, x); \
+ if (!config) \
+ RETURN_ERROR(SP_ERR_ARG, "Null config"); \
+ config->x = x; \
+ RETURN_OK(); \
}
-CREATE_SETTER(baudrate, int)
-CREATE_SETTER(bits, int)
-CREATE_SETTER(parity, enum sp_parity)
-CREATE_SETTER(stopbits, int)
-CREATE_SETTER(rts, enum sp_rts)
-CREATE_SETTER(cts, enum sp_cts)
-CREATE_SETTER(dtr, enum sp_dtr)
-CREATE_SETTER(dsr, enum sp_dsr)
-CREATE_SETTER(xon_xoff, enum sp_xonxoff)
-
-enum sp_return sp_set_flowcontrol(struct sp_port *port, enum sp_flowcontrol flowcontrol)
+CREATE_ACCESSORS(baudrate, int)
+CREATE_ACCESSORS(bits, int)
+CREATE_ACCESSORS(parity, enum sp_parity)
+CREATE_ACCESSORS(stopbits, int)
+CREATE_ACCESSORS(rts, enum sp_rts)
+CREATE_ACCESSORS(cts, enum sp_cts)
+CREATE_ACCESSORS(dtr, enum sp_dtr)
+CREATE_ACCESSORS(dsr, enum sp_dsr)
+CREATE_ACCESSORS(xon_xoff, enum sp_xonxoff)
+
+enum sp_return sp_set_config_flowcontrol(struct sp_port_config *config, enum sp_flowcontrol flowcontrol)
{
- struct port_data data;
- struct sp_port_config config;
-
- TRACE("%p, %d", port, flowcontrol);
-
- CHECK_PORT();
+ if (!config)
+ RETURN_ERROR(SP_ERR_ARG, "Null configuration");
- TRY(get_config(port, &data, &config));
+ if (flowcontrol > SP_FLOWCONTROL_DTRDSR)
+ RETURN_ERROR(SP_ERR_ARG, "Invalid flow control setting");
if (flowcontrol == SP_FLOWCONTROL_XONXOFF)
- config.xon_xoff = SP_XONXOFF_INOUT;
+ config->xon_xoff = SP_XONXOFF_INOUT;
else
- config.xon_xoff = SP_XONXOFF_DISABLED;
+ config->xon_xoff = SP_XONXOFF_DISABLED;
if (flowcontrol == SP_FLOWCONTROL_RTSCTS) {
- config.rts = SP_RTS_FLOW_CONTROL;
- config.cts = SP_CTS_FLOW_CONTROL;
+ config->rts = SP_RTS_FLOW_CONTROL;
+ config->cts = SP_CTS_FLOW_CONTROL;
} else {
- if (config.rts == SP_RTS_FLOW_CONTROL)
- config.rts = SP_RTS_ON;
- config.cts = SP_CTS_IGNORE;
+ if (config->rts == SP_RTS_FLOW_CONTROL)
+ config->rts = SP_RTS_ON;
+ config->cts = SP_CTS_IGNORE;
}
if (flowcontrol == SP_FLOWCONTROL_DTRDSR) {
- config.dtr = SP_DTR_FLOW_CONTROL;
- config.dsr = SP_DSR_FLOW_CONTROL;
+ config->dtr = SP_DTR_FLOW_CONTROL;
+ config->dsr = SP_DSR_FLOW_CONTROL;
} else {
- if (config.dtr == SP_DTR_FLOW_CONTROL)
- config.dtr = SP_DTR_ON;
- config.dsr = SP_DSR_IGNORE;
+ if (config->dtr == SP_DTR_FLOW_CONTROL)
+ config->dtr = SP_DTR_ON;
+ config->dsr = SP_DSR_IGNORE;
}
+ RETURN_OK();
+}
+
+enum sp_return sp_set_flowcontrol(struct sp_port *port, enum sp_flowcontrol flowcontrol)
+{
+ struct port_data data;
+ struct sp_port_config config;
+
+ TRACE("%p, %d", port, flowcontrol);
+
+ CHECK_OPEN_PORT();
+
+ TRY(get_config(port, &data, &config));
+
+ TRY(sp_set_config_flowcontrol(&config, flowcontrol));
+
TRY(set_config(port, &data, &config));
RETURN_OK();
{
TRACE("%p, %p", port, signals);
- CHECK_PORT();
+ CHECK_OPEN_PORT();
if (!signals)
RETURN_ERROR(SP_ERR_ARG, "Null result pointer");
+ DEBUG("Getting control signals for port %s", port->name);
+
*signals = 0;
#ifdef _WIN32
DWORD bits;
*signals |= SP_SIG_CTS;
if (bits & MS_DSR_ON)
*signals |= SP_SIG_DSR;
- if (bits & MS_RING_ON)
- *signals |= SP_SIG_DCD;
if (bits & MS_RLSD_ON)
+ *signals |= SP_SIG_DCD;
+ if (bits & MS_RING_ON)
*signals |= SP_SIG_RI;
#else
int bits;
{
TRACE("%p", port);
- CHECK_PORT();
+ CHECK_OPEN_PORT();
#ifdef _WIN32
if (SetCommBreak(port->hdl) == 0)
RETURN_FAIL("SetCommBreak() failed");
{
TRACE("%p", port);
- CHECK_PORT();
+ CHECK_OPEN_PORT();
#ifdef _WIN32
if (ClearCommBreak(port->hdl) == 0)
RETURN_FAIL("ClearCommBreak() failed");
projects / libserialport.git / blobdiff