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// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
#ifndef __MAPLE_DC_H__
#define __MAPLE_DC_H__
#include "cpu/sh4/sh4.h"
#define MCFG_MAPLE_DC_ADD(_tag, _maincpu_tag, _irq_cb) \
MCFG_DEVICE_ADD(_tag, MAPLE_DC, 0) \
maple_dc_device::static_set_maincpu_tag(*device, _maincpu_tag); \
maple_dc_device::static_set_irq_cb(*device, _irq_cb);
class maple_device;
class maple_dc_device : public device_t
{
public:
maple_dc_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
static void static_set_maincpu_tag(device_t &device, const char *maincpu_tag);
static void static_set_irq_cb(device_t &device, void (*irq_cb)(running_machine &));
DECLARE_READ32_MEMBER(sb_mdstar_r); // 5f6c04
DECLARE_WRITE32_MEMBER(sb_mdstar_w);
DECLARE_READ32_MEMBER(sb_mdtsel_r); // 5f6c10
DECLARE_WRITE32_MEMBER(sb_mdtsel_w);
DECLARE_READ32_MEMBER(sb_mden_r); // 5f6c14
DECLARE_WRITE32_MEMBER(sb_mden_w);
DECLARE_READ32_MEMBER(sb_mdst_r); // 5f6c18
DECLARE_WRITE32_MEMBER(sb_mdst_w);
DECLARE_READ32_MEMBER(sb_msys_r); // 5f6c80
DECLARE_WRITE32_MEMBER(sb_msys_w);
DECLARE_WRITE32_MEMBER(sb_mdapro_w); // 5f6c8c
DECLARE_ADDRESS_MAP(amap, 32);
void end_of_reply();
void register_port(int port, maple_device *device);
void maple_hw_trigger();
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
private:
enum {
DMA_IDLE,
DMA_DONE,
DMA_SEND,
DMA_WAIT_NOP,
DMA_WAIT_RESET,
DMA_WAIT_REPLY,
DMA_GOT_REPLY,
DMA_TIMEOUT
};
maple_device *devices[4];
sh4_device *cpu;
emu_timer *timer;
UINT32 mdstar, mden, mdst, msys;
UINT32 mdtsel;
UINT32 dma_state, dma_adr, dma_port, dma_dest;
bool dma_endflag;
void (*irq_cb)(running_machine &);
void dma_step();
const char *maincpu_tag;
};
extern const device_type MAPLE_DC;
#endif /* __MAPLE_DC_H__ */
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