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Implement serial IO, a generic serial device type and external interrupts
author Michael Pavone <pavone@retrodev.com>
date Wed, 10 Feb 2021 20:12:16 -0800
parents d6c403135e64
children 0f54a898db03
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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 #include "serialize.h"
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12
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13 enum {
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14 IO_NONE,
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15 IO_GAMEPAD2,
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16 IO_GAMEPAD3,
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17 IO_GAMEPAD6,
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18 IO_MOUSE,
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19 IO_SATURN_KEYBOARD,
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20 IO_XBAND_KEYBOARD,
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21 IO_MENACER,
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22 IO_JUSTIFIER,
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23 IO_SEGA_MULTI,
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24 IO_EA_MULTI_A,
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25 IO_EA_MULTI_B,
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26 IO_SEGA_PARALLEL,
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27 IO_GENERIC,
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28 IO_GENERIC_SERIAL
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29 };
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30
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31 typedef struct {
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32 union {
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33 struct {
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34 uint32_t timeout_cycle;
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35 uint16_t th_counter;
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36 uint16_t gamepad_num;
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37 } pad;
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38 struct {
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39 int data_fd;
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40 int listen_fd;
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41 } stream;
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42 struct {
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43 uint32_t ready_cycle;
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44 uint16_t last_read_x;
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45 uint16_t last_read_y;
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46 uint16_t cur_x;
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47 uint16_t cur_y;
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48 uint16_t latched_x;
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49 uint16_t latched_y;
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50 uint8_t tr_counter;
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51 uint8_t mouse_num;
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52 } mouse;
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53 struct {
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54 uint16_t events[8];
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55 uint8_t read_pos;
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56 uint8_t write_pos;
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57 uint8_t tr_counter;
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58 uint8_t mode;
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59 uint8_t cmd;
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60 } keyboard;
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61 } device;
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62 uint8_t output;
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63 uint8_t control;
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64 uint8_t input[3];
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65 uint32_t slow_rise_start[8];
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66 uint32_t serial_cycle;
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67 uint32_t serial_divider;
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68 uint32_t last_poll_cycle;
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69 uint32_t transmit_end;
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70 uint32_t receive_end;
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71 uint8_t serial_out;
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72 uint8_t serial_transmitting;
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73 uint8_t serial_in;
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74 uint8_t serial_receiving;
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75 uint8_t serial_ctrl;
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76 uint8_t device_type;
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77 } io_port;
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78
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79 typedef struct {
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80 io_port ports[3];
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81 } sega_io;
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82
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83 //pseudo gamepad for buttons on main console unit
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84 #define GAMEPAD_MAIN_UNIT 255
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85
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86 enum {
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87 BUTTON_INVALID,
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88 DPAD_UP,
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89 DPAD_DOWN,
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90 DPAD_LEFT,
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91 DPAD_RIGHT,
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92 BUTTON_A,
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93 BUTTON_B,
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94 BUTTON_C,
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95 BUTTON_START,
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96 BUTTON_X,
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97 BUTTON_Y,
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98 BUTTON_Z,
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99 BUTTON_MODE,
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100 NUM_GAMEPAD_BUTTONS
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101 };
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102
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103 enum {
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104 MAIN_UNIT_PAUSE
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105 };
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106
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107 enum {
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108 MOUSE_LEFT = 1,
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109 MOUSE_RIGHT = 2,
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110 MOUSE_MIDDLE = 4,
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111 MOUSE_START = 8,
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112 PSEUDO_BUTTON_MOTION=0xFF
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113 };
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114
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115 void setup_io_devices(tern_node * config, rom_info *rom, sega_io *io);
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116 void io_adjust_cycles(io_port * pad, uint32_t current_cycle, uint32_t deduction);
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117 void io_run(io_port *port, uint32_t current_cycle);
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118 void io_control_write(io_port *port, uint8_t value, uint32_t current_cycle);
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119 void io_data_write(io_port * pad, uint8_t value, uint32_t current_cycle);
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120 void io_tx_write(io_port *port, uint8_t value, uint32_t current_cycle);
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121 void io_sctrl_write(io_port *port, uint8_t value, uint32_t current_cycle);
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122 uint8_t io_data_read(io_port * pad, uint32_t current_cycle);
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123 uint8_t io_rx_read(io_port * port, uint32_t current_cycle);
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124 uint8_t io_sctrl_read(io_port *port, uint32_t current_cycle);
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125 uint32_t io_next_interrupt(io_port *port, uint32_t current_cycle);
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126 void io_serialize(io_port *port, serialize_buffer *buf);
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127 void io_deserialize(deserialize_buffer *buf, void *vport);
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128
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Michael Pavone <pavone@retrodev.com>
parents: 1583
diff changeset
129 void io_port_gamepad_down(io_port *port, uint8_t button);
c206a422d466 Added J-Cart support
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parents: 1583
diff changeset
130 void io_port_gamepad_up(io_port *port, uint8_t button);
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
131 void io_gamepad_down(sega_io *io, uint8_t gamepad_num, uint8_t button);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
132 void io_gamepad_up(sega_io *io, uint8_t gamepad_num, uint8_t button);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
133 void io_mouse_down(sega_io *io, uint8_t mouse_num, uint8_t button);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
134 void io_mouse_up(sega_io *io, uint8_t mouse_num, uint8_t button);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
135 void io_mouse_motion_absolute(sega_io *io, uint8_t mouse_num, uint16_t x, uint16_t y);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
136 void io_mouse_motion_relative(sega_io *io, uint8_t mouse_num, int32_t x, int32_t y);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
137 void io_keyboard_down(sega_io *io, uint8_t scancode);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
138 void io_keyboard_up(sega_io *io, uint8_t scancode);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
139 uint8_t io_has_keyboard(sega_io *io);
421
d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
140
1501
31a2997b745e Added RAM init and IO port config to system settings menu
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
141 extern const char * device_type_names[];
31a2997b745e Added RAM init and IO port config to system settings menu
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
142
421
d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
143 #endif //IO_H_
d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
144