1 // license:BSD-3-Clause
2 // copyright-holders:Curt Coder
3 /**********************************************************************
4 
5     CMD Turbo232 RS-232 cartridge emulation
6 
7 **********************************************************************/
8 
9 #ifndef MAME_BUS_C64_TURBO232_H
10 #define MAME_BUS_C64_TURBO232_H
11 
12 #pragma once
13 
14 
15 #include "exp.h"
16 #include "machine/mos6551.h"
17 #include "bus/rs232/rs232.h"
18 
19 
20 
21 //**************************************************************************
22 //  TYPE DEFINITIONS
23 //**************************************************************************
24 
25 // ======================> c64_turbo232_cartridge_device
26 
27 class c64_turbo232_cartridge_device : public device_t,
28 										public device_c64_expansion_card_interface
29 {
30 public:
31 	// construction/destruction
32 	c64_turbo232_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
33 
34 protected:
35 	// device-level overrides
36 	virtual void device_start() override;
37 	virtual void device_reset() override;
38 
39 	// optional information overrides
40 	virtual void device_add_mconfig(machine_config &config) override;
41 	virtual ioport_constructor device_input_ports() const override;
42 
43 	// device_c64_expansion_card_interface overrides
44 	virtual uint8_t c64_cd_r(offs_t offset, uint8_t data, int sphi2, int ba, int roml, int romh, int io1, int io2) override;
45 	virtual void c64_cd_w(offs_t offset, uint8_t data, int sphi2, int ba, int roml, int romh, int io1, int io2) override;
46 
47 private:
48 	DECLARE_WRITE_LINE_MEMBER( acia_irq_w );
49 
50 	required_device<mos6551_device> m_acia;
51 	required_device<rs232_port_device> m_rs232;
52 	required_ioport m_io_cs;
53 	required_ioport m_io_irq;
54 
55 	enum
56 	{
57 		D700 = 0,
58 		DE00,
59 		DF00
60 	};
61 
62 	enum
63 	{
64 		IRQ = 0,
65 		NMI
66 	};
67 
68 	enum
69 	{
70 		ES_S_230400 = 0x00,
71 		ES_S_115200 = 0x01,
72 		ES_S_57600 = 0x02,
73 		ES_S_UNDEFINED = 0x03,
74 		ES_S_MASK = 0x03,
75 		ES_M = 0x04
76 	};
77 
78 	int m_cs;
79 	int m_irq;
80 
81 	uint8_t m_es;
82 };
83 
84 
85 // device type definition
86 DECLARE_DEVICE_TYPE(C64_TURBO232, c64_turbo232_cartridge_device)
87 
88 
89 #endif // MAME_BUS_C64_TURBO232_H
90