From a2b93bc81171e08f886f8791543810ce64b2dfd6 Mon Sep 17 00:00:00 2001
From: SlamdaddyMcNasty <139294092+SlamdaddyMcNasty@users.noreply.github.com>
Date: Tue, 11 Jul 2023 20:41:02 -0400
Subject: [PATCH] Update libhackrf.py

Added ability to set HW_SYNC_MODE for external trigger
---
 libhackrf.py | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/libhackrf.py b/libhackrf.py
index 719bea1..812ed58 100644
--- a/libhackrf.py
+++ b/libhackrf.py
@@ -76,6 +76,10 @@ def enum(*sequential, **named):
     HACKRF_TRANSCEIVER_MODE_RECEIVE=1,
     HACKRF_TRANSCEIVER_MODE_TRANSMIT=2)
 
+HackRfHwSyncMode = enum(
+    HACKRF_HW_SYNC_MODE_OFF=0,
+    HACKRF_HW_SYNC_MODE_ON=1)
+
 # Data structures
 _libusb_device_handle = c_void_p
 _pthread_t = c_ulong
@@ -169,6 +173,12 @@ class hackrf_device_list_t(Structure):
 f.restype = POINTER(hackrf_device_list_t)
 f.argtypes = []
 
+# HARDWARE SYNCHRONIZATION SETTINGS
+# extern ADDAPI int ADDCALL hackrf_hw_sync_mode(hackrf_device* device,
+# const uint8_t value);
+libhackrf.hackrf_set_hw_sync_mode.restype = c_int
+libhackrf.hackrf_set_hw_sync_mode.argtypes = [p_hackrf_device, c_uint8]
+
 
 def hackrf_device_list():
     return libhackrf.hackrf_device_list()
@@ -463,6 +473,20 @@ def disable_amp(self):
             raise IOError("error disabling amp")
         return 0
 
+    def enable_hw_sync(self):
+        result = libhackrf.hackrf_set_hw_sync_mode(self.dev_p, 1)
+        if result != 0:
+            # TODO: make this error message better
+            raise IOError("error enabling hw sync")
+        return 0
+
+    def disable_hw_sync(self):
+        result = libhackrf.hackrf_set_hw_sync_mode(self.dev_p, 0)
+        if result != 0:
+            # TODO: make this error message better
+            raise IOError("error disabling hw sync")
+        return 0
+
     # rounds down to multiple of 8 (15 -> 8, 39 -> 32), etc.
     # internally, hackrf_set_lna_gain does the same thing
     # But we take care of it so we can keep track of the correct gain