X-Git-Url: https://sigrok.org/gitweb/?p=libsigrok.git;a=blobdiff_plain;f=libsigrok-internal.h;h=8c58bd9f1e53e61c49985207cca5b2472321f699;hp=376e657e05c59e7d7c6617bb6dffed810bfa5015;hb=43cd4637285833706f8a404ca027bcf0ee75b9ae;hpb=ae67644fe5340d9c6e450fb0443178af356e0647
diff --git a/libsigrok-internal.h b/libsigrok-internal.h
index 376e657e..8c58bd9f 100644
--- a/libsigrok-internal.h
+++ b/libsigrok-internal.h
@@ -17,8 +17,12 @@
* along with this program. If not, see .
*/
-#ifndef LIBSIGROK_SIGROK_INTERNAL_H
-#define LIBSIGROK_SIGROK_INTERNAL_H
+/** @file
+ * @internal
+ */
+
+#ifndef LIBSIGROK_LIBSIGROK_INTERNAL_H
+#define LIBSIGROK_LIBSIGROK_INTERNAL_H
#include
#include
@@ -46,6 +50,92 @@
#define ARRAY_AND_SIZE(a) (a), ARRAY_SIZE(a)
#endif
+/**
+ * Read a 8 bits integer out of memory.
+ * @param x a pointer to the input memory
+ * @return the corresponding integer
+ */
+#define R8(x) ((unsigned)((const uint8_t*)(x))[0])
+
+/**
+ * Read a 16 bits big endian integer out of memory.
+ * @param x a pointer to the input memory
+ * @return the corresponding integer
+ */
+#define RB16(x) (((unsigned)((const uint8_t*)(x))[0] << 8) | \
+ (unsigned)((const uint8_t*)(x))[1])
+
+/**
+ * Read a 16 bits little endian integer out of memory.
+ * @param x a pointer to the input memory
+ * @return the corresponding integer
+ */
+#define RL16(x) (((unsigned)((const uint8_t*)(x))[1] << 8) | \
+ (unsigned)((const uint8_t*)(x))[0])
+
+/**
+ * Read a 32 bits big endian integer out of memory.
+ * @param x a pointer to the input memory
+ * @return the corresponding integer
+ */
+#define RB32(x) (((unsigned)((const uint8_t*)(x))[0] << 24) | \
+ ((unsigned)((const uint8_t*)(x))[1] << 16) | \
+ ((unsigned)((const uint8_t*)(x))[2] << 8) | \
+ (unsigned)((const uint8_t*)(x))[3])
+
+/**
+ * Read a 32 bits little endian integer out of memory.
+ * @param x a pointer to the input memory
+ * @return the corresponding integer
+ */
+#define RL32(x) (((unsigned)((const uint8_t*)(x))[3] << 24) | \
+ ((unsigned)((const uint8_t*)(x))[2] << 16) | \
+ ((unsigned)((const uint8_t*)(x))[1] << 8) | \
+ (unsigned)((const uint8_t*)(x))[0])
+
+/**
+ * Write a 8 bits integer to memory.
+ * @param p a pointer to the output memory
+ * @param x the input integer
+ */
+#define W8(p, x) do { ((uint8_t*)(p))[0] = (uint8_t) (x); } while(0)
+
+/**
+ * Write a 16 bits integer to memory stored as big endian.
+ * @param p a pointer to the output memory
+ * @param x the input integer
+ */
+#define WB16(p, x) do { ((uint8_t*)(p))[1] = (uint8_t) (x); \
+ ((uint8_t*)(p))[0] = (uint8_t)((x)>>8); } while(0)
+
+/**
+ * Write a 16 bits integer to memory stored as little endian.
+ * @param p a pointer to the output memory
+ * @param x the input integer
+ */
+#define WL16(p, x) do { ((uint8_t*)(p))[0] = (uint8_t) (x); \
+ ((uint8_t*)(p))[1] = (uint8_t)((x)>>8); } while(0)
+
+/**
+ * Write a 32 bits integer to memory stored as big endian.
+ * @param p a pointer to the output memory
+ * @param x the input integer
+ */
+#define WB32(p, x) do { ((uint8_t*)(p))[3] = (uint8_t) (x); \
+ ((uint8_t*)(p))[2] = (uint8_t)((x)>>8); \
+ ((uint8_t*)(p))[1] = (uint8_t)((x)>>16); \
+ ((uint8_t*)(p))[0] = (uint8_t)((x)>>24); } while(0)
+
+/**
+ * Write a 32 bits integer to memory stored as little endian.
+ * @param p a pointer to the output memory
+ * @param x the input integer
+ */
+#define WL32(p, x) do { ((uint8_t*)(p))[0] = (uint8_t) (x); \
+ ((uint8_t*)(p))[1] = (uint8_t)((x)>>8); \
+ ((uint8_t*)(p))[2] = (uint8_t)((x)>>16); \
+ ((uint8_t*)(p))[3] = (uint8_t)((x)>>24); } while(0)
+
/* Portability fixes for FreeBSD. */
#ifdef __FreeBSD__
#define LIBUSB_CLASS_APPLICATION 0xfe
@@ -56,13 +146,27 @@
struct sr_context {
#ifdef HAVE_LIBUSB_1_0
libusb_context *libusb_ctx;
+ gboolean usb_source_present;
+#ifdef _WIN32
+ GThread *usb_thread;
+ gboolean usb_thread_running;
+ GMutex usb_mutex;
+ HANDLE usb_event;
+ GPollFD usb_pollfd;
+ sr_receive_data_callback usb_cb;
+ void *usb_cb_data;
+#endif
#endif
};
#ifdef HAVE_LIBUSB_1_0
+/** USB device instance */
struct sr_usb_dev_inst {
+ /** USB bus */
uint8_t bus;
+ /** Device address on USB bus */
uint8_t address;
+ /** libusb device handle */
struct libusb_device_handle *devhdl;
};
#endif
@@ -72,10 +176,18 @@ struct sr_usb_dev_inst {
#define SERIAL_PARITY_EVEN SP_PARITY_EVEN
#define SERIAL_PARITY_ODD SP_PARITY_ODD
struct sr_serial_dev_inst {
+ /** Port name, e.g. '/dev/tty42'. */
char *port;
+ /** Comm params for serial_set_paramstr(). */
char *serialcomm;
- int fd;
+ /** Port is non-blocking. */
+ int nonblocking;
+ /** libserialport port handle */
struct sp_port *data;
+ /** libserialport event set */
+ struct sp_event_set *event_set;
+ /** GPollFDs for event polling */
+ GPollFD *pollfds;
};
#endif
@@ -86,6 +198,7 @@ struct sr_usbtmc_dev_inst {
/* Private driver context. */
struct drv_context {
+ /** sigrok context */
struct sr_context *sr_ctx;
GSList *instances;
};
@@ -99,9 +212,25 @@ SR_PRIV int sr_info(const char *format, ...);
SR_PRIV int sr_warn(const char *format, ...);
SR_PRIV int sr_err(const char *format, ...);
+/* Message logging helpers with subsystem-specific prefix string. */
+#ifndef NO_LOG_WRAPPERS
+#define sr_log(l, s, args...) sr_log(l, "%s: " s, LOG_PREFIX, ## args)
+#define sr_spew(s, args...) sr_spew("%s: " s, LOG_PREFIX, ## args)
+#define sr_dbg(s, args...) sr_dbg("%s: " s, LOG_PREFIX, ## args)
+#define sr_info(s, args...) sr_info("%s: " s, LOG_PREFIX, ## args)
+#define sr_warn(s, args...) sr_warn("%s: " s, LOG_PREFIX, ## args)
+#define sr_err(s, args...) sr_err("%s: " s, LOG_PREFIX, ## args)
+#endif
+
/*--- device.c --------------------------------------------------------------*/
-SR_PRIV struct sr_probe *sr_probe_new(int index, int type,
+/** Values for the changes argument of sr_dev_driver.config_channel_set. */
+enum {
+ /** The enabled state of the channel has been changed. */
+ SR_CHANNEL_SET_ENABLED = 1 << 0,
+};
+
+SR_PRIV struct sr_channel *sr_channel_new(int index, int type,
gboolean enabled, const char *name);
/* Generic device instances */
@@ -113,7 +242,6 @@ SR_PRIV void sr_dev_inst_free(struct sr_dev_inst *sdi);
/* USB-specific instances */
SR_PRIV struct sr_usb_dev_inst *sr_usb_dev_inst_new(uint8_t bus,
uint8_t address, struct libusb_device_handle *hdl);
-SR_PRIV GSList *sr_usb_find_usbtmc(libusb_context *usb_ctx);
SR_PRIV void sr_usb_dev_inst_free(struct sr_usb_dev_inst *usb);
#endif
@@ -134,8 +262,14 @@ SR_PRIV void sr_hw_cleanup_all(void);
SR_PRIV struct sr_config *sr_config_new(int key, GVariant *data);
SR_PRIV void sr_config_free(struct sr_config *src);
SR_PRIV int sr_source_remove(int fd);
+SR_PRIV int sr_source_remove_pollfd(GPollFD *pollfd);
+SR_PRIV int sr_source_remove_channel(GIOChannel *channel);
SR_PRIV int sr_source_add(int fd, int events, int timeout,
- sr_receive_data_callback_t cb, void *cb_data);
+ sr_receive_data_callback cb, void *cb_data);
+SR_PRIV int sr_source_add_pollfd(GPollFD *pollfd, int timeout,
+ sr_receive_data_callback cb, void *cb_data);
+SR_PRIV int sr_source_add_channel(GIOChannel *channel, int events, int timeout,
+ sr_receive_data_callback cb, void *cb_data);
/*--- session.c -------------------------------------------------------------*/
@@ -144,6 +278,7 @@ struct sr_session {
GSList *devs;
/** List of struct datafeed_callback pointers. */
GSList *datafeed_callbacks;
+ struct sr_trigger *trigger;
GTimeVal starttime;
gboolean running;
@@ -164,31 +299,60 @@ struct sr_session {
* an async fashion. We need to make sure the session is stopped from
* within the session thread itself.
*/
+ /** Mutex protecting access to abort_session. */
GMutex stop_mutex;
+ /** Abort current session. See sr_session_stop(). */
gboolean abort_session;
};
SR_PRIV int sr_session_send(const struct sr_dev_inst *sdi,
const struct sr_datafeed_packet *packet);
-SR_PRIV int sr_session_stop_sync(void);
+SR_PRIV int sr_session_stop_sync(struct sr_session *session);
SR_PRIV int sr_sessionfile_check(const char *filename);
/*--- std.c -----------------------------------------------------------------*/
-typedef int (*dev_close_t)(struct sr_dev_inst *sdi);
-typedef void (*std_dev_clear_t)(void *priv);
+typedef int (*dev_close_callback)(struct sr_dev_inst *sdi);
+typedef void (*std_dev_clear_callback)(void *priv);
SR_PRIV int std_init(struct sr_context *sr_ctx, struct sr_dev_driver *di,
const char *prefix);
#ifdef HAVE_LIBSERIALPORT
-SR_PRIV int std_dev_acquisition_stop_serial(struct sr_dev_inst *sdi,
- void *cb_data, dev_close_t dev_close_fn,
+SR_PRIV int std_serial_dev_open(struct sr_dev_inst *sdi);
+SR_PRIV int std_serial_dev_acquisition_stop(struct sr_dev_inst *sdi,
+ void *cb_data, dev_close_callback dev_close_fn,
struct sr_serial_dev_inst *serial, const char *prefix);
#endif
SR_PRIV int std_session_send_df_header(const struct sr_dev_inst *sdi,
const char *prefix);
SR_PRIV int std_dev_clear(const struct sr_dev_driver *driver,
- std_dev_clear_t clear_private);
+ std_dev_clear_callback clear_private);
+SR_PRIV int std_serial_dev_close(struct sr_dev_inst *sdi);
+
+/*--- strutil.c -------------------------------------------------------------*/
+
+SR_PRIV int sr_atol(const char *str, long *ret);
+SR_PRIV int sr_atoi(const char *str, int *ret);
+SR_PRIV int sr_atod(const char *str, double *ret);
+SR_PRIV int sr_atof(const char *str, float *ret);
+SR_PRIV int sr_atof_ascii(const char *str, float *ret);
+
+/*--- soft-trigger.c --------------------------------------------------------*/
+
+struct soft_trigger_logic {
+ const struct sr_dev_inst *sdi;
+ const struct sr_trigger *trigger;
+ int count;
+ int unitsize;
+ int cur_stage;
+ uint8_t *prev_sample;
+};
+
+SR_PRIV struct soft_trigger_logic *soft_trigger_logic_new(
+ const struct sr_dev_inst *sdi, struct sr_trigger *trigger);
+SR_PRIV void soft_trigger_logic_free(struct soft_trigger_logic *st);
+SR_PRIV int soft_trigger_logic_check(struct soft_trigger_logic *st, uint8_t *buf,
+ int len);
/*--- hardware/common/serial.c ----------------------------------------------*/
@@ -199,15 +363,23 @@ enum {
SERIAL_NONBLOCK = 4,
};
-typedef gboolean (*packet_valid_t)(const uint8_t *buf);
+typedef gboolean (*packet_valid_callback)(const uint8_t *buf);
SR_PRIV int serial_open(struct sr_serial_dev_inst *serial, int flags);
SR_PRIV int serial_close(struct sr_serial_dev_inst *serial);
SR_PRIV int serial_flush(struct sr_serial_dev_inst *serial);
SR_PRIV int serial_write(struct sr_serial_dev_inst *serial,
const void *buf, size_t count);
+SR_PRIV int serial_write_blocking(struct sr_serial_dev_inst *serial,
+ const void *buf, size_t count);
+SR_PRIV int serial_write_nonblocking(struct sr_serial_dev_inst *serial,
+ const void *buf, size_t count);
SR_PRIV int serial_read(struct sr_serial_dev_inst *serial, void *buf,
size_t count);
+SR_PRIV int serial_read_blocking(struct sr_serial_dev_inst *serial, void *buf,
+ size_t count);
+SR_PRIV int serial_read_nonblocking(struct sr_serial_dev_inst *serial, void *buf,
+ size_t count);
SR_PRIV int serial_set_params(struct sr_serial_dev_inst *serial, int baudrate,
int bits, int parity, int stopbits, int flowcontrol, int rts, int dtr);
SR_PRIV int serial_set_paramstr(struct sr_serial_dev_inst *serial,
@@ -216,8 +388,17 @@ SR_PRIV int serial_readline(struct sr_serial_dev_inst *serial, char **buf,
int *buflen, gint64 timeout_ms);
SR_PRIV int serial_stream_detect(struct sr_serial_dev_inst *serial,
uint8_t *buf, size_t *buflen,
- size_t packet_size, packet_valid_t is_valid,
+ size_t packet_size,
+ packet_valid_callback is_valid,
uint64_t timeout_ms, int baudrate);
+SR_PRIV int sr_serial_extract_options(GSList *options, const char **serial_device,
+ const char **serial_options);
+SR_PRIV int serial_source_add(struct sr_session *session,
+ struct sr_serial_dev_inst *serial, int events, int timeout,
+ sr_receive_data_callback cb, void *cb_data);
+SR_PRIV int serial_source_remove(struct sr_session *session,
+ struct sr_serial_dev_inst *serial);
+SR_PRIV GSList *sr_serial_find_usb(uint16_t vendor_id, uint16_t product_id);
#endif
/*--- hardware/common/ezusb.c -----------------------------------------------*/
@@ -235,24 +416,107 @@ SR_PRIV int ezusb_upload_firmware(libusb_device *dev, int configuration,
#ifdef HAVE_LIBUSB_1_0
SR_PRIV GSList *sr_usb_find(libusb_context *usb_ctx, const char *conn);
SR_PRIV int sr_usb_open(libusb_context *usb_ctx, struct sr_usb_dev_inst *usb);
+SR_PRIV int usb_source_add(struct sr_session *session, struct sr_context *ctx,
+ int timeout, sr_receive_data_callback cb, void *cb_data);
+SR_PRIV int usb_source_remove(struct sr_session *session, struct sr_context *ctx);
#endif
-/*--- hardware/common/dmm/es51922.c -----------------------------------------*/
+/*--- hardware/common/scpi.c ------------------------------------------------*/
-#define ES51922_PACKET_SIZE 14
+#define SCPI_CMD_IDN "*IDN?"
+#define SCPI_CMD_OPC "*OPC?"
-struct es51922_info {
- gboolean is_judge, is_vbar, is_voltage, is_auto, is_micro, is_current;
- gboolean is_milli, is_resistance, is_continuity, is_diode, is_lpf;
- gboolean is_frequency, is_duty_cycle, is_capacitance, is_temperature;
- gboolean is_celsius, is_fahrenheit, is_adp, is_sign, is_batt, is_ol;
- gboolean is_max, is_min, is_rel, is_rmr, is_ul, is_pmax, is_pmin;
- gboolean is_dc, is_ac, is_vahz, is_hold, is_nano, is_kilo, is_mega;
+enum {
+ SCPI_CMD_SET_TRIGGER_SOURCE,
+ SCPI_CMD_SET_TIMEBASE,
+ SCPI_CMD_SET_VERTICAL_DIV,
+ SCPI_CMD_SET_TRIGGER_SLOPE,
+ SCPI_CMD_SET_COUPLING,
+ SCPI_CMD_SET_HORIZ_TRIGGERPOS,
+ SCPI_CMD_GET_ANALOG_CHAN_STATE,
+ SCPI_CMD_GET_DIG_CHAN_STATE,
+ SCPI_CMD_GET_TIMEBASE,
+ SCPI_CMD_GET_VERTICAL_DIV,
+ SCPI_CMD_GET_VERTICAL_OFFSET,
+ SCPI_CMD_GET_TRIGGER_SOURCE,
+ SCPI_CMD_GET_HORIZ_TRIGGERPOS,
+ SCPI_CMD_GET_TRIGGER_SLOPE,
+ SCPI_CMD_GET_COUPLING,
+ SCPI_CMD_SET_ANALOG_CHAN_STATE,
+ SCPI_CMD_SET_DIG_CHAN_STATE,
+ SCPI_CMD_GET_DIG_POD_STATE,
+ SCPI_CMD_SET_DIG_POD_STATE,
+ SCPI_CMD_GET_ANALOG_DATA,
+ SCPI_CMD_GET_DIG_DATA,
+ SCPI_CMD_GET_SAMPLE_RATE,
+ SCPI_CMD_GET_SAMPLE_RATE_LIVE,
};
-SR_PRIV gboolean sr_es51922_packet_valid(const uint8_t *buf);
-SR_PRIV int sr_es51922_parse(const uint8_t *buf, float *floatval,
- struct sr_datafeed_analog *analog, void *info);
+struct sr_scpi_hw_info {
+ char *manufacturer;
+ char *model;
+ char *serial_number;
+ char *firmware_version;
+};
+
+struct sr_scpi_dev_inst {
+ const char *name;
+ const char *prefix;
+ int priv_size;
+ GSList *(*scan)(struct drv_context *drvc);
+ int (*dev_inst_new)(void *priv, struct drv_context *drvc,
+ const char *resource, char **params, const char *serialcomm);
+ int (*open)(void *priv);
+ int (*source_add)(struct sr_session *session, void *priv, int events,
+ int timeout, sr_receive_data_callback cb, void *cb_data);
+ int (*source_remove)(struct sr_session *session, void *priv);
+ int (*send)(void *priv, const char *command);
+ int (*read_begin)(void *priv);
+ int (*read_data)(void *priv, char *buf, int maxlen);
+ int (*read_complete)(void *priv);
+ int (*close)(void *priv);
+ void (*free)(void *priv);
+ void *priv;
+};
+
+SR_PRIV GSList *sr_scpi_scan(struct drv_context *drvc, GSList *options,
+ struct sr_dev_inst *(*probe_device)(struct sr_scpi_dev_inst *scpi));
+SR_PRIV struct sr_scpi_dev_inst *scpi_dev_inst_new(struct drv_context *drvc,
+ const char *resource, const char *serialcomm);
+SR_PRIV int sr_scpi_open(struct sr_scpi_dev_inst *scpi);
+SR_PRIV int sr_scpi_source_add(struct sr_session *session,
+ struct sr_scpi_dev_inst *scpi, int events, int timeout,
+ sr_receive_data_callback cb, void *cb_data);
+SR_PRIV int sr_scpi_source_remove(struct sr_session *session,
+ struct sr_scpi_dev_inst *scpi);
+SR_PRIV int sr_scpi_send(struct sr_scpi_dev_inst *scpi,
+ const char *format, ...);
+SR_PRIV int sr_scpi_send_variadic(struct sr_scpi_dev_inst *scpi,
+ const char *format, va_list args);
+SR_PRIV int sr_scpi_read_begin(struct sr_scpi_dev_inst *scpi);
+SR_PRIV int sr_scpi_read_data(struct sr_scpi_dev_inst *scpi, char *buf, int maxlen);
+SR_PRIV int sr_scpi_read_complete(struct sr_scpi_dev_inst *scpi);
+SR_PRIV int sr_scpi_close(struct sr_scpi_dev_inst *scpi);
+SR_PRIV void sr_scpi_free(struct sr_scpi_dev_inst *scpi);
+
+SR_PRIV int sr_scpi_get_string(struct sr_scpi_dev_inst *scpi,
+ const char *command, char **scpi_response);
+SR_PRIV int sr_scpi_get_bool(struct sr_scpi_dev_inst *scpi,
+ const char *command, gboolean *scpi_response);
+SR_PRIV int sr_scpi_get_int(struct sr_scpi_dev_inst *scpi,
+ const char *command, int *scpi_response);
+SR_PRIV int sr_scpi_get_float(struct sr_scpi_dev_inst *scpi,
+ const char *command, float *scpi_response);
+SR_PRIV int sr_scpi_get_double(struct sr_scpi_dev_inst *scpi,
+ const char *command, double *scpi_response);
+SR_PRIV int sr_scpi_get_opc(struct sr_scpi_dev_inst *scpi);
+SR_PRIV int sr_scpi_get_floatv(struct sr_scpi_dev_inst *scpi,
+ const char *command, GArray **scpi_response);
+SR_PRIV int sr_scpi_get_uint8v(struct sr_scpi_dev_inst *scpi,
+ const char *command, GArray **scpi_response);
+SR_PRIV int sr_scpi_get_hw_id(struct sr_scpi_dev_inst *scpi,
+ struct sr_scpi_hw_info **scpi_response);
+SR_PRIV void sr_scpi_hw_info_free(struct sr_scpi_hw_info *hw_info);
/*--- hardware/common/dmm/es519xx.c -----------------------------------------*/
@@ -280,6 +544,9 @@ struct es519xx_info {
SR_PRIV gboolean sr_es519xx_2400_11b_packet_valid(const uint8_t *buf);
SR_PRIV int sr_es519xx_2400_11b_parse(const uint8_t *buf, float *floatval,
struct sr_datafeed_analog *analog, void *info);
+SR_PRIV gboolean sr_es519xx_2400_11b_altfn_packet_valid(const uint8_t *buf);
+SR_PRIV int sr_es519xx_2400_11b_altfn_parse(const uint8_t *buf,
+ float *floatval, struct sr_datafeed_analog *analog, void *info);
SR_PRIV gboolean sr_es519xx_19200_11b_5digits_packet_valid(const uint8_t *buf);
SR_PRIV int sr_es519xx_19200_11b_5digits_parse(const uint8_t *buf,
float *floatval, struct sr_datafeed_analog *analog, void *info);
@@ -332,6 +599,15 @@ SR_PRIV void sr_fs9721_00_temp_c(struct sr_datafeed_analog *analog, void *info);
SR_PRIV void sr_fs9721_01_temp_c(struct sr_datafeed_analog *analog, void *info);
SR_PRIV void sr_fs9721_10_temp_c(struct sr_datafeed_analog *analog, void *info);
SR_PRIV void sr_fs9721_01_10_temp_f_c(struct sr_datafeed_analog *analog, void *info);
+SR_PRIV void sr_fs9721_max_c_min(struct sr_datafeed_analog *analog, void *info);
+
+/*--- hardware/common/dmm/m2110.c -----------------------------------------*/
+
+#define BBCGM_M2110_PACKET_SIZE 9
+
+SR_PRIV gboolean sr_m2110_packet_valid(const uint8_t *buf);
+SR_PRIV int sr_m2110_parse(const uint8_t *buf, float *floatval,
+ struct sr_datafeed_analog *analog, void *info);
/*--- hardware/common/dmm/metex14.c -----------------------------------------*/
@@ -342,7 +618,7 @@ struct metex14_info {
gboolean is_diode, is_frequency, is_ampere, is_volt, is_farad;
gboolean is_hertz, is_ohm, is_celsius, is_pico, is_nano, is_micro;
gboolean is_milli, is_kilo, is_mega, is_gain, is_decibel, is_hfe;
- gboolean is_unitless;
+ gboolean is_unitless, is_logic;
};
#ifdef HAVE_LIBSERIALPORT