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// license:BSD-3-Clause
// copyright-holders: Aaron Giles, Ted Green
// NEC VRC 5074 System Controller
#ifndef MAME_MACHINE_VRC5074_H
#define MAME_MACHINE_VRC5074_H
#pragma once
#include "pci.h"
#include "cpu/mips/mips3.h"
#include "machine/ins8250.h"
#include "bus/rs232/rs232.h"
class vrc5074_device : public pci_host_device {
public:
template <typename T>
vrc5074_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, T &&cpu_tag)
: vrc5074_device(mconfig, tag, owner, clock)
{
set_cpu_tag(std::forward<T>(cpu_tag));
}
vrc5074_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
required_device<ns16550_device> m_uart;
virtual void device_add_mconfig(machine_config &config) override;
virtual void reset_all_mappings() override;
virtual void map_extra(uint64_t memory_window_start, uint64_t memory_window_end, uint64_t memory_offset, address_space *memory_space,
uint64_t io_window_start, uint64_t io_window_end, uint64_t io_offset, address_space *io_space) override;
virtual void device_post_load() override;
template <typename T> void set_cpu_tag(T &&tag) { m_cpu.set_tag(std::forward<T>(tag)); }
void set_sdram_size(int index, int size) { m_sdram_size[index] = size; };
void set_map(int id, const address_map_constructor &map, device_t *device);
virtual void config_map(address_map &map) override;
uint32_t sdram_addr_r();
void sdram_addr_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
// PCI interrupts
DECLARE_WRITE_LINE_MEMBER(pci_intr_a);
DECLARE_WRITE_LINE_MEMBER(pci_intr_b);
DECLARE_WRITE_LINE_MEMBER(pci_intr_c);
DECLARE_WRITE_LINE_MEMBER(pci_intr_d);
DECLARE_WRITE_LINE_MEMBER(pci_intr_e);
void update_pci_irq(const int index, const int state);
//cpu bus registers
uint32_t cpu_reg_r(offs_t offset);
void cpu_reg_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
uint32_t serial_r(offs_t offset);
void serial_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
void update_nile_irqs();
uint32_t pci0_r(offs_t offset, uint32_t mem_mask = ~0);
void pci0_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
uint32_t pci1_r(offs_t offset, uint32_t mem_mask = ~0);
void pci1_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
virtual void target1_map(address_map &map);
uint32_t target1_r(offs_t offset, uint32_t mem_mask = ~0);
void target1_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
// Serial port
DECLARE_WRITE_LINE_MEMBER(uart_irq_callback);
protected:
address_space *m_cpu_space;
virtual space_config_vector memory_space_config() const override;
virtual void device_start() override;
virtual void device_reset() override;
private:
enum
{
AS_PCI_MEM = 1,
AS_PCI_IO = 2
};
required_device<mips3_device> m_cpu;
int m_sdram_size[2];
address_space_config m_mem_config, m_io_config;
void cpu_map(address_map &map);
void serial_map(address_map &map);
void map_cpu_space();
emu_timer* m_dma_timer;
TIMER_CALLBACK_MEMBER(dma_transfer);
emu_timer *m_timer[4];
double m_timer_period[4];
TIMER_CALLBACK_MEMBER(nile_timer_callback);
required_memory_region m_romRegion;
optional_memory_region m_updateRegion;
std::vector<uint32_t> m_sdram[2];
// Chip Select
device_t *m_cs_devices[7];
address_map_constructor m_cs_maps[7];
uint32_t m_cpu_regs[0x1ff / 4];
uint16_t m_nile_irq_state;
int m_uart_irq;
uint8_t m_irq_pins;
void setup_pci_space();
uint32_t m_pci_laddr[2], m_pci_mask[2], m_pci_type[2];
uint32_t m_sdram_addr[2];
};
DECLARE_DEVICE_TYPE(VRC5074, vrc5074_device)
#endif // MAME_MACHINE_VRC5074_H
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