1 // license:BSD-3-Clause
2 // copyright-holders:Aaron Giles
3 /***************************************************************************
4
5 midway.h
6
7 Functions to emulate general the various Midway sound cards.
8
9 ***************************************************************************/
10 #ifndef MAME_AUDIO_MIDWAY_H
11 #define MAME_AUDIO_MIDWAY_H
12
13 #pragma once
14
15
16 #include "cpu/z80/z80.h"
17 #include "cpu/m68000/m68000.h"
18 #include "cpu/m6800/m6800.h"
19 #include "cpu/m6809/m6809.h"
20 #include "machine/6821pia.h"
21 #include "sound/ay8910.h"
22 #include "sound/dac.h"
23 #include "sound/flt_biquad.h"
24 #include "sound/hc55516.h"
25 #include "sound/tms5220.h"
26
27
28 //**************************************************************************
29 // GLOBAL VARIABLES
30 //**************************************************************************
31
DECLARE_DEVICE_TYPE(MIDWAY_SSIO,midway_ssio_device)32 DECLARE_DEVICE_TYPE(MIDWAY_SSIO, midway_ssio_device)
33 DECLARE_DEVICE_TYPE(MIDWAY_SOUNDS_GOOD, midway_sounds_good_device)
34 DECLARE_DEVICE_TYPE(MIDWAY_TURBO_CHEAP_SQUEAK, midway_turbo_cheap_squeak_device)
35
36
37
38 //**************************************************************************
39 // TYPE DEFINITIONS
40 //**************************************************************************
41
42 // ======================> midway_ssio_device
43
44 class midway_ssio_device : public device_t,
45 public device_mixer_interface
46 {
47 public:
48 // construction/destruction
49 midway_ssio_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 16'000'000);
50
51 // helpers
52 void suspend_cpu();
53
54 // read/write
55 uint8_t read();
56 void write(offs_t offset, uint8_t data);
57 DECLARE_WRITE_LINE_MEMBER(reset_write);
58 uint8_t ioport_read(offs_t offset);
59 void ioport_write(offs_t offset, uint8_t data);
60
61 // configuration
62 template <typename... T> void set_custom_input(int which, uint8_t mask, T &&... args)
63 {
64 m_custom_input_mask[which] = mask;
65 m_custom_input[which].set(std::forward<T>(args)...);
66 }
67 template <typename... T> void set_custom_output(int which, uint8_t mask, T &&... args)
68 {
69 m_custom_output_mask[which / 4] = mask;
70 m_custom_output[which / 4].set(std::forward<T>(args)...);
71 }
72
73 // internal communications
74 uint8_t irq_clear();
75 void status_w(uint8_t data);
76 uint8_t data_r(offs_t offset);
77
78 void ssio_map(address_map &map);
79 static void ssio_input_ports(address_map &map, const char *ssio);
80
81 protected:
82 // device-level overrides
83 virtual const tiny_rom_entry *device_rom_region() const override;
84 virtual void device_add_mconfig(machine_config &config) override;
85 virtual ioport_constructor device_input_ports() const override;
86 virtual void device_start() override;
87 virtual void device_reset() override;
88 virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
89
90 private:
91 // internal helpers
92 void compute_ay8910_modulation();
93 void update_volumes();
94
95 // devices
96 required_device<z80_device> m_cpu;
97 required_device<ay8910_device> m_ay0;
98 required_device<ay8910_device> m_ay1;
99
100 // I/O ports
101 optional_ioport_array<5> m_ports;
102
103 // internal state
104 uint8_t m_data[4];
105 uint8_t m_status;
106 uint8_t m_14024_count;
107 uint8_t m_mute;
108 uint8_t m_overall[2];
109 uint8_t m_duty_cycle[2][3];
110 uint8_t m_ayvolume_lookup[16];
111
112 // I/O port overrides
113 uint8_t m_custom_input_mask[5];
114 read8smo_delegate::array<5> m_custom_input;
115 uint8_t m_custom_output_mask[2];
116 write8smo_delegate::array<2> m_custom_output;
117
118 INTERRUPT_GEN_MEMBER(clock_14024);
119 void porta0_w(uint8_t data);
120 void portb0_w(uint8_t data);
121 void porta1_w(uint8_t data);
122 void portb1_w(uint8_t data);
123 };
124
125
126 // ======================> midway_sounds_good_device
127
128 class midway_sounds_good_device : public device_t,
129 public device_mixer_interface
130 {
131 public:
132 // construction/destruction
133 midway_sounds_good_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 16'000'000);
134
135 // read/write
136 uint8_t read();
137 void write(uint8_t data);
138 DECLARE_WRITE_LINE_MEMBER(reset_write);
139
140 void soundsgood_map(address_map &map);
141 protected:
142 // device-level overrides
143 virtual void device_add_mconfig(machine_config &config) override;
144 virtual void device_start() override;
145 virtual void device_reset() override;
146 virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
147
148 private:
149 // devices
150 required_device<m68000_device> m_cpu;
151 required_device<pia6821_device> m_pia;
152 required_device<ad7533_device> m_dac;
153 required_device_array<filter_biquad_device, 3> m_dac_filter;
154
155 // internal state
156 uint8_t m_status;
157 uint16_t m_dacval;
158
159 // internal communications
160 void porta_w(uint8_t data);
161 void portb_w(uint8_t data);
162 DECLARE_WRITE_LINE_MEMBER(irq_w);
163 };
164
165
166 // ======================> midway_turbo_cheap_squeak_device
167
168 class midway_turbo_cheap_squeak_device : public device_t,
169 public device_mixer_interface
170 {
171 public:
172 // construction/destruction
173 midway_turbo_cheap_squeak_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 8'000'000);
174
175 // read/write
176 uint8_t read();
177 void write(uint8_t data);
178 DECLARE_WRITE_LINE_MEMBER(reset_write);
179
180 void turbocs_map(address_map &map);
181 protected:
182 // device-level overrides
183 virtual void device_add_mconfig(machine_config &config) override;
184 virtual void device_start() override;
185 virtual void device_reset() override;
186 virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
187
188 private:
189 // devices
190 required_device<mc6809e_device> m_cpu;
191 required_device<pia6821_device> m_pia;
192 required_device<ad7533_device> m_dac;
193 required_device_array<filter_biquad_device, 3> m_dac_filter;
194
195 // internal state
196 uint8_t m_status;
197 uint16_t m_dacval;
198
199 // internal communications
200 void porta_w(uint8_t data);
201 void portb_w(uint8_t data);
202 DECLARE_WRITE_LINE_MEMBER(irq_w);
203 };
204
205 #endif // MAME_AUDIO_MIDWAY_H
206