rigol-ds: improve robustness in samplerate getting code path

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

diff --git a/src/libsigrok-internal.h b/src/libsigrok-internal.h
index 7a5b717d6d4c7482534a185fbb30ab67e48e2cb4..a2350e02ddf3aed2c48c89bcab2ac8eb8f59dfae 100644 (file)
--- a/src/libsigrok-internal.h
+++ b/src/libsigrok-internal.h
@@ -32,6 +32,9 @@
 #ifdef HAVE_LIBUSB_1_0
 #include <libusb.h>
 #endif
+#ifdef HAVE_LIBFTDI
+#include <ftdi.h>
+#endif
 #include <stdarg.h>
 #include <stdint.h>
 #include <stdio.h>
@@ -981,6 +984,21 @@ static inline void write_dblle_inc(uint8_t **p, double x)
        libusb_handle_events_timeout(ctx, tv)
 #endif
 
+/*
+ * Convenience for FTDI library version dependency.
+ * - Version 1.5 introduced ftdi_tciflush(), ftdi_tcoflush(), and
+ *   ftdi_tcioflush() all within the same commit, and deprecated
+ *   ftdi_usb_purge_buffers() which suffered from inverse semantics.
+ *   The API is drop-in compatible (arguments count and data types are
+ *   identical). The libsigrok source code always flushes RX and TX at
+ *   the same time, never individually.
+ */
+#if defined HAVE_FTDI_TCIOFLUSH && HAVE_FTDI_TCIOFLUSH
+#  define PURGE_FTDI_BOTH ftdi_tcioflush
+#else
+#  define PURGE_FTDI_BOTH ftdi_usb_purge_buffers
+#endif
+
 /* Static definitions of structs ending with an all-zero entry are a
  * problem when compiling with -Wmissing-field-initializers: GCC
  * suppresses the warning only with { 0 }, clang wants { } */
@@ -1916,8 +1934,6 @@ SR_PRIV int serial_stream_detect(struct sr_serial_dev_inst *serial,
                size_t packet_size, packet_valid_callback is_valid,
                packet_valid_len_callback is_valid_len, size_t *return_size,
                uint64_t timeout_ms);
-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);
@@ -1996,6 +2012,9 @@ SR_PRIV const char *ser_hid_chip_find_name_vid_pid(uint16_t vid, uint16_t pid);
 #endif
 #endif
 
+SR_PRIV int sr_serial_extract_options(GSList *options,
+       const char **serial_device, const char **serial_options);
+
 /*--- bt/ API ---------------------------------------------------------------*/
 
 #ifdef HAVE_BLUETOOTH
@@ -2063,7 +2082,9 @@ SR_PRIV gboolean usb_match_manuf_prod(libusb_device *dev,
 
 /** Binary value type */
 enum binary_value_type {
-       BVT_UINT8 = 0,
+       BVT_INVALID,
+
+       BVT_UINT8,
        BVT_BE_UINT8 = BVT_UINT8,
        BVT_LE_UINT8 = BVT_UINT8,
 
@@ -2691,6 +2712,7 @@ SR_API struct feed_queue_logic *feed_queue_logic_alloc(
 SR_API int feed_queue_logic_submit(struct feed_queue_logic *q,
        const uint8_t *data, size_t count);
 SR_API int feed_queue_logic_flush(struct feed_queue_logic *q);
+SR_API int feed_queue_logic_send_trigger(struct feed_queue_logic *q);
 SR_API void feed_queue_logic_free(struct feed_queue_logic *q);
 
 SR_API struct feed_queue_analog *feed_queue_analog_alloc(