// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
// Intel i82875p northbridge
#ifndef MAME_MACHINE_I82875P_H
#define MAME_MACHINE_I82875P_H
#pragma once
#include "pci.h"
class i82875p_host_device : public pci_host_device {
public:
template <typename T>
i82875p_host_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, uint32_t subdevice_id, T &&cpu_tag, int ram_size)
: i82875p_host_device(mconfig, tag, owner, clock)
{
set_ids_host(0x80862578, 0x02, subdevice_id);
set_cpu_tag(std::forward<T>(cpu_tag));
set_ram_size(ram_size);
}
i82875p_host_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
template <typename T> void set_cpu_tag(T &&tag) { cpu.set_tag(std::forward<T>(tag)); }
void set_ram_size(int ram_size);
virtual DECLARE_READ8_MEMBER(capptr_r) override;
protected:
virtual void device_start() override;
virtual void device_reset() 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 config_map(address_map &map) override;
private:
void agp_translation_map(address_map &map);
int ram_size;
required_device<device_memory_interface> cpu;
std::vector<uint32_t> ram;
uint8_t agpm, fpllcont, pam[8], smram, esmramc;
uint8_t apsize, amtt, lptt;
uint16_t toud, mchcfg, errcmd, smicmd, scicmd, skpd;
uint32_t agpctrl, attbase;
DECLARE_READ8_MEMBER( agpm_r);
DECLARE_WRITE8_MEMBER( agpm_w);
DECLARE_READ8_MEMBER( gc_r);
DECLARE_READ8_MEMBER( csabcont_r);
DECLARE_READ32_MEMBER( eap_r);
DECLARE_READ8_MEMBER( derrsyn_r);
DECLARE_READ8_MEMBER( des_r);
DECLARE_READ8_MEMBER( fpllcont_r);
DECLARE_WRITE8_MEMBER( fpllcont_w);
DECLARE_READ8_MEMBER( pam_r);
DECLARE_WRITE8_MEMBER( pam_w);
DECLARE_READ8_MEMBER( smram_r);
DECLARE_WRITE8_MEMBER( smram_w);
DECLARE_READ8_MEMBER( esmramc_r);
DECLARE_WRITE8_MEMBER( esmramc_w);
DECLARE_READ32_MEMBER( acapid_r);
DECLARE_READ32_MEMBER( agpstat_r);
DECLARE_READ32_MEMBER( agpcmd_r);
DECLARE_READ32_MEMBER( agpctrl_r);
DECLARE_WRITE32_MEMBER(agpctrl_w);
DECLARE_READ8_MEMBER( apsize_r);
DECLARE_WRITE8_MEMBER( apsize_w);
DECLARE_READ32_MEMBER( attbase_r);
DECLARE_WRITE32_MEMBER(attbase_w);
DECLARE_READ8_MEMBER( amtt_r);
DECLARE_WRITE8_MEMBER( amtt_w);
DECLARE_READ8_MEMBER( lptt_r);
DECLARE_WRITE8_MEMBER( lptt_w);
DECLARE_READ16_MEMBER( toud_r);
DECLARE_WRITE16_MEMBER(toud_w);
DECLARE_READ16_MEMBER( mchcfg_r);
DECLARE_WRITE16_MEMBER(mchcfg_w);
DECLARE_READ16_MEMBER( errsts_r);
DECLARE_READ16_MEMBER( errcmd_r);
DECLARE_WRITE16_MEMBER(errcmd_w);
DECLARE_READ16_MEMBER( smicmd_r);
DECLARE_WRITE16_MEMBER(smicmd_w);
DECLARE_READ16_MEMBER( scicmd_r);
DECLARE_WRITE16_MEMBER(scicmd_w);
DECLARE_READ16_MEMBER( skpd_r);
DECLARE_WRITE16_MEMBER(skpd_w);
DECLARE_READ32_MEMBER( capreg1_r);
DECLARE_READ8_MEMBER( capreg2_r);
};
class i82875p_agp_device : public agp_bridge_device {
public:
i82875p_agp_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
virtual void device_start() override;
virtual void device_reset() override;
};
class i82875p_overflow_device : public pci_device {
public:
i82875p_overflow_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, uint32_t subdevice_id)
: i82875p_overflow_device(mconfig, tag, owner, clock)
{
set_ids(0x8086257e, 0x02, 0x088000, subdevice_id);
}
i82875p_overflow_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
private:
DECLARE_READ8_MEMBER (dram_row_boundary_r);
DECLARE_WRITE8_MEMBER (dram_row_boundary_w);
DECLARE_READ8_MEMBER (dram_row_attribute_r);
DECLARE_WRITE8_MEMBER (dram_row_attribute_w);
DECLARE_READ32_MEMBER (dram_timing_r);
DECLARE_WRITE32_MEMBER(dram_timing_w);
DECLARE_READ32_MEMBER (dram_controller_mode_r);
DECLARE_WRITE32_MEMBER(dram_controller_mode_w);
protected:
virtual void device_start() override;
virtual void device_reset() override;
private:
void overflow_map(address_map &map);
uint8_t dram_row_boundary[8], dram_row_attribute[4];
uint32_t dram_timing, dram_controller_mode;
};
DECLARE_DEVICE_TYPE(I82875P_HOST, i82875p_host_device)
DECLARE_DEVICE_TYPE(I82875P_AGP, i82875p_agp_device)
DECLARE_DEVICE_TYPE(I82875P_OVERFLOW, i82875p_overflow_device)
#endif // MAME_MACHINE_I82875P_H