serial: prepare alternative transports for serial communication

[libsigrok.git] / src / libsigrok-internal.h

diff --git a/src/libsigrok-internal.h b/src/libsigrok-internal.h
index a6497c958ac86b725c753f8f182aec562d53bd9d..9384bbb68692dc8dfde720e333d9a50165b20169 100644 (file)
--- a/src/libsigrok-internal.h
+++ b/src/libsigrok-internal.h
@@ -722,19 +722,23 @@ struct sr_usb_dev_inst {
 #endif
 
 #ifdef HAVE_LIBSERIALPORT
+struct ser_lib_functions;
 struct sr_serial_dev_inst {
        /** Port name, e.g. '/dev/tty42'. */
        char *port;
        /** Comm params for serial_set_paramstr(). */
        char *serialcomm;
+       struct ser_lib_functions *lib_funcs;
        struct {
                int bit_rate;
                int data_bits;
                int parity_bits;
                int stop_bits;
        } comm_params;
+#ifdef HAVE_LIBSERIALPORT
        /** libserialport port handle */
        struct sp_port *sp_data;
+#endif
 };
 #endif
 
@@ -1109,31 +1113,34 @@ SR_PRIV int serial_source_remove(struct sr_session *session,
 SR_PRIV GSList *sr_serial_find_usb(uint16_t vendor_id, uint16_t product_id);
 SR_PRIV int serial_timeout(struct sr_serial_dev_inst *port, int num_bytes);
 
-SR_PRIV int sr_ser_libsp_open(struct sr_serial_dev_inst *serial, int flags);
-SR_PRIV int sr_ser_libsp_close(struct sr_serial_dev_inst *serial);
-SR_PRIV int sr_ser_libsp_flush(struct sr_serial_dev_inst *serial);
-SR_PRIV int sr_ser_libsp_drain(struct sr_serial_dev_inst *serial);
-SR_PRIV int sr_ser_libsp_write(struct sr_serial_dev_inst *serial,
-               const void *buf, size_t count,
-               int nonblocking, unsigned int timeout_ms);
-SR_PRIV int sr_ser_libsp_read(struct sr_serial_dev_inst *serial,
-               void *buf, size_t count,
-               int nonblocking, unsigned int timeout_ms);
-SR_PRIV int sr_ser_libsp_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 sr_ser_libsp_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 sr_ser_libsp_source_remove(struct sr_session *session,
-               struct sr_serial_dev_inst *serial);
-SR_PRIV GSList *sr_ser_libsp_list(GSList *list, sr_ser_list_append_t append);
-SR_PRIV GSList *sr_ser_libsp_find_usb(GSList *list, sr_ser_find_append_t append,
-               uint16_t vendor_id, uint16_t product_id);
-SR_PRIV int sr_ser_libsp_get_frame_format(struct sr_serial_dev_inst *serial,
-               int *baud, int *bits);
-SR_PRIV size_t sr_ser_libsp_get_rx_avail(struct sr_serial_dev_inst *serial);
+struct ser_lib_functions {
+       int (*open)(struct sr_serial_dev_inst *serial, int flags);
+       int (*close)(struct sr_serial_dev_inst *serial);
+       int (*flush)(struct sr_serial_dev_inst *serial);
+       int (*drain)(struct sr_serial_dev_inst *serial);
+       int (*write)(struct sr_serial_dev_inst *serial,
+                       const void *buf, size_t count,
+                       int nonblocking, unsigned int timeout_ms);
+       int (*read)(struct sr_serial_dev_inst *serial,
+                       void *buf, size_t count,
+                       int nonblocking, unsigned int timeout_ms);
+       int (*set_params)(struct sr_serial_dev_inst *serial,
+                       int baudrate, int bits, int parity, int stopbits,
+                       int flowcontrol, int rts, int dtr);
+       int (*setup_source_add)(struct sr_session *session,
+                       struct sr_serial_dev_inst *serial,
+                       int events, int timeout,
+                       sr_receive_data_callback cb, void *cb_data);
+       int (*setup_source_remove)(struct sr_session *session,
+                       struct sr_serial_dev_inst *serial);
+       GSList *(*list)(GSList *list, sr_ser_list_append_t append);
+       GSList *(*find_usb)(GSList *list, sr_ser_find_append_t append,
+                       uint16_t vendor_id, uint16_t product_id);
+       int (*get_frame_format)(struct sr_serial_dev_inst *serial,
+                       int *baud, int *bits);
+       size_t (*get_rx_avail)(struct sr_serial_dev_inst *serial);
+};
+extern SR_PRIV struct ser_lib_functions *ser_lib_funcs_libsp;
 #endif
 
 /*--- ezusb.c ---------------------------------------------------------------*/