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More cleanup in preparation for SMS/Mark III support
author Michael Pavone <pavone@retrodev.com>
date Thu, 22 Dec 2016 10:51:33 -0800
parents 2eb54e24914e
children 3e24de8d8073
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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 #include "romdb.h"
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11
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12 enum {
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13 IO_GAMEPAD3,
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14 IO_GAMEPAD6,
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15 IO_MOUSE,
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16 IO_SATURN_KEYBOARD,
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17 IO_MENACER,
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18 IO_JUSTIFIER,
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19 IO_SEGA_MULTI,
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20 IO_EA_MULTI_A,
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21 IO_EA_MULTI_B,
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22 IO_SEGA_PARALLEL,
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23 IO_GENERIC,
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24 IO_NONE
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25 };
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26
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27 typedef struct {
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28 union {
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29 struct {
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30 uint32_t timeout_cycle;
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31 uint16_t th_counter;
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32 uint16_t gamepad_num;
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33 } pad;
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34 struct {
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35 int data_fd;
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36 int listen_fd;
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37 } stream;
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38 struct {
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39 uint32_t ready_cycle;
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40 uint16_t last_read_x;
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41 uint16_t last_read_y;
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42 uint16_t cur_x;
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43 uint16_t cur_y;
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44 uint16_t latched_x;
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45 uint16_t latched_y;
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46 uint8_t tr_counter;
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47 uint8_t mouse_num;
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48 } mouse;
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49 struct {
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50 uint16_t events[8];
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51 uint8_t read_pos;
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52 uint8_t write_pos;
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53 uint8_t tr_counter;
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54 } keyboard;
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55 } device;
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56 uint8_t output;
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57 uint8_t control;
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58 uint8_t input[3];
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59 uint8_t device_type;
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60 } io_port;
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61
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62 typedef struct {
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63 io_port ports[3];
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64 uint8_t mouse_mode;
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65 uint8_t mouse_captured;
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66 } sega_io;
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67
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68 #define GAMEPAD_TH0 0
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69 #define GAMEPAD_TH1 1
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70 #define GAMEPAD_EXTRA 2
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71 #define GAMEPAD_NONE 0xF
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72
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73 #define IO_TH0 0
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74 #define IO_TH1 1
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75 #define IO_STATE 2
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76
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77 enum {
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78 IO_WRITE_PENDING,
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79 IO_WRITTEN,
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80 IO_READ_PENDING,
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81 IO_READ
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82 };
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83
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84 typedef struct genesis_context genesis_context;
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85
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86 void set_keybindings(sega_io *io);
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87 void map_all_bindings(sega_io *io);
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88 void setup_io_devices(tern_node * config, rom_info *rom, sega_io *io);
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89 void io_adjust_cycles(io_port * pad, uint32_t current_cycle, uint32_t deduction);
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90 void io_data_write(io_port * pad, uint8_t value, uint32_t current_cycle);
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91 uint8_t io_data_read(io_port * pad, uint32_t current_cycle);
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92 void handle_keydown(int keycode, uint8_t scancode);
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93 void handle_keyup(int keycode, uint8_t scancode);
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94 void handle_joydown(int joystick, int button);
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95 void handle_joyup(int joystick, int button);
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96 void handle_joy_dpad(int joystick, int dpad, uint8_t state);
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97 void handle_mouse_moved(int mouse, uint16_t x, uint16_t y, int16_t deltax, int16_t deltay);
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98 void handle_mousedown(int mouse, int button);
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99 void handle_mouseup(int mouse, int button);
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100
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101 #endif //IO_H_
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102