mirror of
https://github.com/holub/mame
synced 2025-06-03 03:16:30 +03:00
226 lines
7.5 KiB
C++
226 lines
7.5 KiB
C++
// license:BSD-3-Clause
|
|
// copyright-holders:Joakim Larsson Edstrom
|
|
/**********************************************************************
|
|
*
|
|
* Motorola MC68153 BIM - Bus Interrupter Module
|
|
*
|
|
* _____ _____
|
|
* Vcc 1 |* \_/ | 40 A3
|
|
* RW* 2 | | 39 A2
|
|
* CS* 3 | | 38 A1
|
|
* DTACK* 4 | | 37 D7
|
|
* IACK* 5 | | 36 D6
|
|
* IACKIN* 6 | | 35 D5
|
|
* IACKOUT* 7 | | 34 D4
|
|
* IRQ1* 8 | | 33 D3
|
|
* GND 9 | | 32 D2
|
|
* GND 10 | | 31 GND
|
|
* Vcc 11 | | 30 VCC
|
|
* IRQ2* 12 | MC68153 | 29 D1
|
|
* IRQ3* 13 | EI68C153 | 28 D0
|
|
* IRQ4* 14 | | 27 INTAE*
|
|
* IRQ5* 15 | | 26 INTAL1
|
|
* IRQ6* 16 | | 25 INTAL0
|
|
* IRQ7* 17 | | 24 INT3*
|
|
* CLK* 18 | | 23 INT2*
|
|
* INT0* 19 | | 22 INT1*
|
|
* GND 20 |_____________| 21 Vcc
|
|
*
|
|
**********************************************************************/
|
|
|
|
#ifndef MAME_MACHINE_68153BIM_H
|
|
#define MAME_MACHINE_68153BIM_H
|
|
|
|
#pragma once
|
|
|
|
|
|
//**************************************************************************
|
|
// DEVICE CONFIGURATION MACROS
|
|
//**************************************************************************
|
|
|
|
/* Variant ADD macros - use the right one to enable the right feature set! */
|
|
#define MCFG_MC68153_ADD(_tag, _clock) \
|
|
MCFG_DEVICE_ADD(_tag, MC68153, _clock)
|
|
|
|
#define MCFG_EI68C153_ADD(_tag, _clock) \
|
|
MCFG_DEVICE_ADD(_tag, EI68C153, _clock)
|
|
|
|
#define MCFG_BIM68153_OUT_INT_CB(_devcb) \
|
|
devcb = &downcast<bim68153_device &>(*device).set_out_int_callback(DEVCB_##_devcb);
|
|
|
|
// These callback sets INTAL0 and INTAL1 but is probably not needed as the
|
|
// shorthand OUT_IACK0..OUT_IACK3 below embedd the channel information
|
|
#define MCFG_BIM68153_OUT_INTAL0_CB(_devcb) \
|
|
devcb = &downcast<bim68153_device &>(*device).set_out_intal0_callback(DEVCB_##_devcb);
|
|
|
|
#define MCFG_BIM68153_OUT_INTAL1_CB(_devcb) \
|
|
devcb = &downcast<bim68153_device &>(*device).set_out_intal1_callback(DEVCB_##_devcb);
|
|
|
|
// LOCAL IACK callbacks emulating the INTAL0 and INTAL1 outputs for INTAE requesting a vector from a sub device
|
|
#define MCFG_BIM68153_OUT_IACK0_CB(_devcb) \
|
|
devcb = &downcast<bim68153_device &>(*device).set_out_iack0_callback(DEVCB_##_devcb);
|
|
#define MCFG_BIM68153_OUT_IACK1_CB(_devcb) \
|
|
devcb = &downcast<bim68153_device &>(*device).set_out_iack1_callback(DEVCB_##_devcb);
|
|
#define MCFG_BIM68153_OUT_IACK2_CB(_devcb) \
|
|
devcb = &downcast<bim68153_device &>(*device).set_out_iack2_callback(DEVCB_##_devcb);
|
|
#define MCFG_BIM68153_OUT_IACK3_CB(_devcb) \
|
|
devcb = &downcast<bim68153_device &>(*device).set_out_iack3_callback(DEVCB_##_devcb);
|
|
|
|
//**************************************************************************
|
|
// TYPE DEFINITIONS
|
|
//**************************************************************************
|
|
|
|
class bim68153_device;
|
|
|
|
class bim68153_channel : public device_t
|
|
{
|
|
friend class bim68153_device;
|
|
|
|
public:
|
|
bim68153_channel(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
|
|
|
|
// device-level overrides
|
|
virtual void device_start() override;
|
|
virtual void device_reset() override;
|
|
|
|
// read register handlers
|
|
uint8_t do_bimreg_control_r();
|
|
uint8_t do_bimreg_vector_r();
|
|
|
|
// write register handlers
|
|
void do_bimreg_control_w(uint8_t data);
|
|
void do_bimreg_vector_w(uint8_t vector);
|
|
|
|
DECLARE_WRITE_LINE_MEMBER( int_w );
|
|
devcb_read8 m_out_iack_cb;
|
|
uint8_t m_int_state;
|
|
|
|
// Register state
|
|
uint8_t m_control;
|
|
uint8_t m_vector;
|
|
|
|
protected:
|
|
enum
|
|
{
|
|
NONE = 0,
|
|
PENDING = 1,
|
|
};
|
|
|
|
enum
|
|
{
|
|
RCV_IDLE = 0,
|
|
RCV_SEEKING = 1,
|
|
RCV_SAMPLING = 2
|
|
};
|
|
|
|
enum
|
|
{
|
|
REG_CNTRL_INT_LVL_MSK = 0x07,
|
|
REG_CNTRL_INT_AUT_DIS = 0x08,
|
|
REG_CNTRL_INT_ENABLE = 0x10,
|
|
REG_CNTRL_INT_EXT = 0x20,
|
|
REG_CNTRL_INT_AUT_CLR = 0x40,
|
|
REG_CNTRL_INT_FLAG = 0x80,
|
|
};
|
|
int m_int; // interrupt request from connected device
|
|
int m_index; // Which channel am I?
|
|
bim68153_device *m_bim; // my device
|
|
};
|
|
|
|
|
|
class bim68153_device : public device_t
|
|
{
|
|
friend class bim68153_channel;
|
|
|
|
public:
|
|
// construction/destruction
|
|
bim68153_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
|
|
|
|
IRQ_CALLBACK_MEMBER(iack);
|
|
int acknowledge();
|
|
int get_irq_level();
|
|
|
|
template <class Object> devcb_base &set_out_int_callback(Object &&cb) { return m_out_int_cb.set_callback(std::forward<Object>(cb)); }
|
|
template <class Object> devcb_base &set_out_intal0_callback(Object &&cb) { return m_out_intal0_cb.set_callback(std::forward<Object>(cb)); }
|
|
template <class Object> devcb_base &set_out_intal1_callback(Object &&cb) { return m_out_intal1_cb.set_callback(std::forward<Object>(cb)); }
|
|
|
|
template <class Object> devcb_base &set_out_iack0_callback(Object &&cb) { return m_chn[CHN_0]->m_out_iack_cb.set_callback(std::forward<Object>(cb)); }
|
|
template <class Object> devcb_base &set_out_iack1_callback(Object &&cb) { return m_chn[CHN_1]->m_out_iack_cb.set_callback(std::forward<Object>(cb)); }
|
|
template <class Object> devcb_base &set_out_iack2_callback(Object &&cb) { return m_chn[CHN_2]->m_out_iack_cb.set_callback(std::forward<Object>(cb)); }
|
|
template <class Object> devcb_base &set_out_iack4_callback(Object &&cb) { return m_chn[CHN_3]->m_out_iack_cb.set_callback(std::forward<Object>(cb)); }
|
|
|
|
DECLARE_READ8_MEMBER( read );
|
|
DECLARE_WRITE8_MEMBER( write );
|
|
|
|
|
|
DECLARE_WRITE_LINE_MEMBER( iackin_w ) { m_iackin = state; }
|
|
DECLARE_WRITE_LINE_MEMBER( int0_w ) { m_chn[CHN_0]->int_w(state); }
|
|
DECLARE_WRITE_LINE_MEMBER( int1_w ) { m_chn[CHN_1]->int_w(state); }
|
|
DECLARE_WRITE_LINE_MEMBER( int2_w ) { m_chn[CHN_2]->int_w(state); }
|
|
DECLARE_WRITE_LINE_MEMBER( int3_w ) { m_chn[CHN_3]->int_w(state); }
|
|
|
|
protected:
|
|
bim68153_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock, uint32_t variant);
|
|
|
|
// device-level overrides
|
|
virtual void device_start() override;
|
|
virtual void device_reset() override;
|
|
virtual void device_add_mconfig(machine_config &config) override;
|
|
|
|
void trigger_interrupt(int ch);
|
|
int get_channel_index(bim68153_channel *ch);
|
|
|
|
// Register enums
|
|
enum
|
|
{
|
|
REG_CONTROL = 0x00,
|
|
REG_VECTOR = 0x04,
|
|
CHN_MSK = 0x03,
|
|
CHN_0 = 0x00,
|
|
CHN_1 = 0x01,
|
|
CHN_2 = 0x02,
|
|
CHN_3 = 0x03,
|
|
};
|
|
|
|
enum
|
|
{
|
|
INT_CHN0 = 0,
|
|
INT_CHN1 = 1,
|
|
INT_CHN2 = 2,
|
|
INT_CHN3 = 3,
|
|
};
|
|
|
|
// Variants of BIM
|
|
enum
|
|
{
|
|
TYPE_MC68153 = 0x001,
|
|
TYPE_EI68C153 = 0x002,
|
|
};
|
|
|
|
required_device<bim68153_channel> m_chn[4];
|
|
|
|
devcb_write_line m_out_int_cb;
|
|
|
|
// iack signalling towards subdevices, see also out_iack_callbacks in each bim68153_channel which overlaps
|
|
devcb_write_line m_out_intal0_cb;
|
|
devcb_write_line m_out_intal1_cb;
|
|
|
|
// Daisy chain signals
|
|
devcb_read8 m_out_iackout_cb;
|
|
int m_iackin;
|
|
int m_irq_level;
|
|
};
|
|
|
|
class ei68c153_device : public bim68153_device
|
|
{
|
|
public :
|
|
ei68c153_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
|
|
};
|
|
|
|
// device type definition
|
|
DECLARE_DEVICE_TYPE(MC68153, bim68153_device)
|
|
DECLARE_DEVICE_TYPE(EI68C153, ei68c153_device)
|
|
DECLARE_DEVICE_TYPE(MC68153_CHANNEL, bim68153_channel)
|
|
|
|
#endif // MAME_MACHINE_68153BIM_H
|