1 files changed, 18 insertions, 4 deletions
diff --git a/backends/winmidi.h b/backends/winmidi.h
index 4c740ea..40b3554 100644
--- a/backends/winmidi.h
+++ b/backends/winmidi.h
@@ -10,9 +10,20 @@ static int winmidi_handle(size_t num, managed_fd* fds);
 static int winmidi_start(size_t n, instance** inst);
 static int winmidi_shutdown(size_t n, instance** inst);
 
+#define EPN_NRPN 8
+#define EPN_PARAMETER_HI 4
+#define EPN_PARAMETER_LO 2
+#define EPN_VALUE_HI 1
+
 typedef struct /*_winmidi_instance_data*/ {
 	char* read;
 	char* write;
+	
+	uint8_t epn_tx_short;
+	uint16_t epn_control[16];
+	uint16_t epn_value[16];
+	uint8_t epn_status[16];
+
 	HMIDIIN device_in;
 	HMIDIOUT device_out;
 } winmidi_instance_data;
@@ -20,18 +31,21 @@ typedef struct /*_winmidi_instance_data*/ {
 enum /*_winmidi_channel_type*/ {
 	none = 0,
 	note = 0x90,
-	cc = 0xB0,
 	pressure = 0xA0,
+	cc = 0xB0,
+	program = 0xC0,
 	aftertouch = 0xD0,
-	pitchbend = 0xE0
+	pitchbend = 0xE0,
+	rpn = 0xF1,
+	nrpn = 0xF2
 };
 
 typedef union {
 	struct {
-		uint8_t pad[5];
+		uint8_t pad[4];
 		uint8_t type;
 		uint8_t channel;
-		uint8_t control;
+		uint16_t control;
 	} fields;
 	uint64_t label;
 } winmidi_channel_ident;