mirror of
https://github.com/holub/mame
synced 2025-10-05 08:41:31 +03:00
125 lines
3.4 KiB
C++
125 lines
3.4 KiB
C++
// license:BSD-3-Clause
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// copyright-holders: Aaron Giles, Ted Green
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// NEC VRC 5074 System Controller
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#ifndef MAME_MACHINE_VRC5074_H
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#define MAME_MACHINE_VRC5074_H
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#pragma once
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#include "pci.h"
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#include "cpu/mips/mips3.h"
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#include "machine/ins8250.h"
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#include "bus/rs232/rs232.h"
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#define MCFG_VRC5074_ADD(_tag, _cpu_tag) \
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MCFG_PCI_HOST_ADD(_tag, VRC5074, 0x1033005a, 0x04, 0x00000000) \
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downcast<vrc5074_device *>(device)->set_cpu_tag(_cpu_tag);
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#define MCFG_VRC5074_SET_SDRAM(_index, _size) \
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downcast<vrc5074_device *>(device)->set_sdram_size(_index, _size);
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#define MCFG_VRC5074_SET_CS(_cs_num, _map) \
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downcast<vrc5074_device *>(device)->set_map(_cs_num, address_map_delegate(ADDRESS_MAP_NAME(_map), #_map), owner);
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class vrc5074_device : public pci_host_device {
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public:
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static constexpr unsigned SYSTEM_CLOCK = 100000000;
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vrc5074_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
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required_device<ns16550_device> m_uart;
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virtual void device_add_mconfig(machine_config &config) override;
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virtual void reset_all_mappings() override;
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virtual void map_extra(uint64_t memory_window_start, uint64_t memory_window_end, uint64_t memory_offset, address_space *memory_space,
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uint64_t io_window_start, uint64_t io_window_end, uint64_t io_offset, address_space *io_space) override;
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void postload();
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void set_cpu_tag(const char *tag);
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void set_sdram_size(const int index, const int size) { m_sdram_size[index] = size; };
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void set_map(int id, const address_map_delegate &map, device_t *device);
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virtual DECLARE_ADDRESS_MAP(config_map, 32) override;
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DECLARE_READ32_MEMBER(sdram_addr_r);
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DECLARE_WRITE32_MEMBER(sdram_addr_w);
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// PCI interrupts
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DECLARE_WRITE_LINE_MEMBER(pci_intr_a);
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DECLARE_WRITE_LINE_MEMBER(pci_intr_b);
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DECLARE_WRITE_LINE_MEMBER(pci_intr_c);
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DECLARE_WRITE_LINE_MEMBER(pci_intr_d);
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DECLARE_WRITE_LINE_MEMBER(pci_intr_e);
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void update_pci_irq(const int index, const int state);
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//cpu bus registers
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DECLARE_READ32_MEMBER (cpu_reg_r);
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DECLARE_WRITE32_MEMBER(cpu_reg_w);
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DECLARE_READ32_MEMBER(serial_r);
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DECLARE_WRITE32_MEMBER(serial_w);
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void update_nile_irqs();
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DECLARE_READ32_MEMBER (pci0_r);
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DECLARE_WRITE32_MEMBER(pci0_w);
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DECLARE_READ32_MEMBER (pci1_r);
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DECLARE_WRITE32_MEMBER(pci1_w);
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virtual DECLARE_ADDRESS_MAP(target1_map, 32);
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DECLARE_READ32_MEMBER (target1_r);
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DECLARE_WRITE32_MEMBER(target1_w);
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// Serial port
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DECLARE_WRITE_LINE_MEMBER(uart_irq_callback);
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protected:
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address_space *m_cpu_space;
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virtual space_config_vector memory_space_config() const override;
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virtual void device_start() override;
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virtual void device_reset() override;
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private:
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enum
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{
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AS_PCI_MEM = 1,
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AS_PCI_IO = 2
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};
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mips3_device *m_cpu;
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const char *cpu_tag;
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int m_sdram_size[2];
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address_space_config m_mem_config, m_io_config;
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DECLARE_ADDRESS_MAP(cpu_map, 32);
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DECLARE_ADDRESS_MAP(serial_map, 32);
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void map_cpu_space();
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emu_timer* m_dma_timer;
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TIMER_CALLBACK_MEMBER(dma_transfer);
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emu_timer *m_timer[4];
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TIMER_CALLBACK_MEMBER(nile_timer_callback);
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required_memory_region m_romRegion;
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optional_memory_region m_updateRegion;
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std::vector<uint32_t> m_sdram[2];
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// Chip Select
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device_t *m_cs_devices[7];
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address_map_delegate m_cs_maps[7];
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uint32_t m_cpu_regs[0x1ff / 4];
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uint16_t m_nile_irq_state;
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void setup_pci_space();
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uint32_t m_pci_laddr[2], m_pci_mask[2], m_pci_type[2];
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uint32_t m_sdram_addr[2];
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};
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DECLARE_DEVICE_TYPE(VRC5074, vrc5074_device)
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#endif // MAME_MACHINE_VRC5074_H
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