Initial support for configurable IO, custom IO and sega transfer board emulation

1 files changed, 44 insertions, 7 deletions

diff --git a/io.h b/io.h
index b0fd1e9..b73be67 100644
--- a/io.h
+++ b/io.h
@@ -1,18 +1,43 @@
 /*
  Copyright 2013 Michael Pavone
- This file is part of BlastEm. 
+ This file is part of BlastEm.
  BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text.
 */
 #ifndef IO_H_
 #define IO_H_
 #include <stdint.h>
+#include "tern.h"
+
+enum {
+	IO_GAMEPAD3,
+	IO_GAMEPAD6,
+	IO_MOUSE,
+	IO_MENACER,
+	IO_JUSTIFIER,
+	IO_SEGA_MULTI,
+	IO_EA_MULTI_A,
+	IO_EA_MULTI_B,
+	IO_SEGA_PARALLEL,
+	IO_GENERIC,
+	IO_NONE
+};
 
 typedef struct {
-	uint32_t th_counter;
-	uint32_t timeout_cycle;
-	uint8_t output;
-	uint8_t control;
-	uint8_t input[3];
+	union {
+		struct {
+			uint32_t timeout_cycle;
+			uint16_t th_counter;
+			uint16_t gamepad_num;
+		} pad;
+		struct {
+			int data_fd;
+			int listen_fd;
+		} stream;
+	} device;
+	uint8_t  output;
+	uint8_t  control;
+	uint8_t  input[3];
+	uint8_t  device_type;
 } io_port;
 
 #define GAMEPAD_TH0 0
@@ -20,7 +45,19 @@ typedef struct {
 #define GAMEPAD_EXTRA 2
 #define GAMEPAD_NONE 0xF
 
-void set_keybindings();
+#define IO_TH0 0
+#define IO_TH1 1
+#define IO_STATE 2
+
+enum {
+	IO_WRITE_PENDING,
+	IO_WRITTEN,
+	IO_READ_PENDING,
+	IO_READ
+};
+
+void set_keybindings(io_port *ports);
+void setup_io_devices(tern_node * config, io_port * ports);
 void io_adjust_cycles(io_port * pad, uint32_t current_cycle, uint32_t deduction);
 void io_data_write(io_port * pad, uint8_t value, uint32_t current_cycle);
 uint8_t io_data_read(io_port * pad, uint32_t current_cycle);