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Initial support for configurable IO, custom IO and sega transfer board emulation
author Michael Pavone <pavone@retrodev.com>
date Wed, 03 Dec 2014 09:32:32 -0800
parents 140af5509ce7
children 252dfd29831d
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1 /*
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2 Copyright 2013 Michael Pavone
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3 This file is part of BlastEm.
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4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text.
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5 */
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6 #ifndef IO_H_
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7 #define IO_H_
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8 #include <stdint.h>
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9 #include "tern.h"
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10
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11 enum {
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12 IO_GAMEPAD3,
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13 IO_GAMEPAD6,
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14 IO_MOUSE,
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15 IO_MENACER,
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16 IO_JUSTIFIER,
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17 IO_SEGA_MULTI,
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18 IO_EA_MULTI_A,
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19 IO_EA_MULTI_B,
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20 IO_SEGA_PARALLEL,
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21 IO_GENERIC,
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22 IO_NONE
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23 };
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24
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25 typedef struct {
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26 union {
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27 struct {
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28 uint32_t timeout_cycle;
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29 uint16_t th_counter;
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30 uint16_t gamepad_num;
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31 } pad;
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32 struct {
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33 int data_fd;
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34 int listen_fd;
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35 } stream;
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36 } device;
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37 uint8_t output;
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38 uint8_t control;
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39 uint8_t input[3];
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40 uint8_t device_type;
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41 } io_port;
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42
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43 #define GAMEPAD_TH0 0
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44 #define GAMEPAD_TH1 1
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45 #define GAMEPAD_EXTRA 2
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46 #define GAMEPAD_NONE 0xF
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47
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48 #define IO_TH0 0
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49 #define IO_TH1 1
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50 #define IO_STATE 2
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51
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52 enum {
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53 IO_WRITE_PENDING,
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54 IO_WRITTEN,
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55 IO_READ_PENDING,
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56 IO_READ
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57 };
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58
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59 void set_keybindings(io_port *ports);
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60 void setup_io_devices(tern_node * config, io_port * ports);
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61 void io_adjust_cycles(io_port * pad, uint32_t current_cycle, uint32_t deduction);
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62 void io_data_write(io_port * pad, uint8_t value, uint32_t current_cycle);
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63 uint8_t io_data_read(io_port * pad, uint32_t current_cycle);
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64 void handle_keydown(int keycode);
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65 void handle_keyup(int keycode);
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66 void handle_joydown(int joystick, int button);
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67 void handle_joyup(int joystick, int button);
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68 void handle_joy_dpad(int joystick, int dpad, uint8_t state);
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69
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70 #endif //IO_H_
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71