1 // license:BSD-3-Clause
2 // copyright-holders:Alex Pasadyn, Zsolt Vasvari, Ernesto Corvi, Aaron Giles
3 // thanks-to:Kurt Mahan
4 /*************************************************************************
5 
6     Driver for Midway T-unit games.
7 
8 **************************************************************************/
9 #ifndef MAME_INCLUDES_MIDTUNIT_H
10 #define MAME_INCLUDES_MIDTUNIT_H
11 
12 #pragma once
13 
14 #include "audio/dcs.h"
15 #include "audio/williams.h"
16 #include "video/midtunit.h"
17 
18 #include "cpu/tms34010/tms34010.h"
19 #include "emupal.h"
20 
21 
22 class midtunit_state : public driver_device
23 {
24 public:
midtunit_state(const machine_config & mconfig,device_type type,const char * tag)25 	midtunit_state(const machine_config &mconfig, device_type type, const char *tag) :
26 		driver_device(mconfig, type, tag),
27 		m_maincpu(*this, "maincpu"),
28 		m_video(*this, "video"),
29 		m_dcs(*this, "dcs"),
30 		m_palette(*this, "palette"),
31 		m_gfxrom(*this, "gfxrom"),
32 		m_cvsd_sound(*this, "cvsd"),
33 		m_adpcm_sound(*this, "adpcm"),
34 		m_nvram(*this, "nvram")
35 	{ }
36 
37 	void tunit_core(machine_config &config);
38 	void tunit_adpcm(machine_config &config);
39 	void tunit_dcs(machine_config &config);
40 
41 	void init_mktunit();
42 	void init_mkturbo();
43 	void init_nbajamte();
44 	void init_nbajam();
45 	void init_jdreddp();
46 	void init_mk2();
47 
48 protected:
49 	void machine_reset() override;
50 
51 	required_device<tms340x0_device> m_maincpu;
52 	required_device<midtunit_video_device> m_video;
53 	optional_device<dcs_audio_device> m_dcs;
54 	required_device<palette_device> m_palette;
55 	required_memory_region m_gfxrom;
56 
57 private:
58 	optional_device<williams_cvsd_sound_device> m_cvsd_sound;
59 	optional_device<williams_adpcm_sound_device> m_adpcm_sound;
60 
61 	required_shared_ptr<uint16_t> m_nvram;
62 
63 	void midtunit_cmos_enable_w(uint16_t data);
64 	void midtunit_cmos_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
65 	uint16_t midtunit_cmos_r(offs_t offset);
66 	uint16_t midtunit_sound_state_r();
67 	uint16_t midtunit_sound_r();
68 	void midtunit_sound_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
69 	uint16_t mk_prot_r(offs_t offset);
70 	void mk_prot_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
71 	uint16_t mkturbo_prot_r();
72 	uint16_t mk2_prot_const_r();
73 	uint16_t mk2_prot_r();
74 	uint16_t mk2_prot_shift_r();
75 	void mk2_prot_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
76 	uint16_t nbajam_prot_r();
77 	void nbajam_prot_w(offs_t offset, uint16_t data);
78 	void jdredd_prot_w(offs_t offset, uint16_t data);
79 	uint16_t jdredd_prot_r(offs_t offset);
80 
81 	void register_state_saving();
82 	void init_tunit_generic(int sound);
83 	void init_nbajam_common(int te_protection);
84 
85 	/* CMOS-related variables */
86 	uint8_t    m_cmos_write_enable;
87 
88 	/* sound-related variables */
89 	uint8_t    m_chip_type;
90 	uint8_t    m_fake_sound_state;
91 
92 	/* protection */
93 	uint8_t    m_mk_prot_index;
94 	uint16_t   m_mk2_prot_data;
95 
96 	const uint32_t *m_nbajam_prot_table;
97 	uint16_t   m_nbajam_prot_queue[5];
98 	uint8_t    m_nbajam_prot_index;
99 
100 	const uint8_t *m_jdredd_prot_table;
101 	uint8_t    m_jdredd_prot_index;
102 	uint8_t    m_jdredd_prot_max;
103 
104 	void main_map(address_map &map);
105 };
106 
107 #endif // MAME_INCLUDES_MIDTUNIT_H
108