// license:BSD-3-Clause // copyright-holders:Olivier Galibert // Intel i82875p northbridge #ifndef I82875P_H #define I82875P_H #include "pci.h" #define MCFG_I82875P_HOST_ADD(_tag, _subdevice_id, _cpu_tag, _ram_size) \ MCFG_PCI_HOST_ADD(_tag, I82875P_HOST, 0x80862578, 0x02, _subdevice_id) \ downcast(device)->set_cpu_tag(_cpu_tag); \ downcast(device)->set_ram_size(_ram_size); #define MCFG_I82875P_AGP_ADD(_tag) \ MCFG_AGP_BRIDGE_ADD(_tag, I82875P_AGP, 0x80862579, 0x02) #define MCFG_I82875P_OVERFLOW_ADD(_tag, _subdevice_id) \ MCFG_PCI_DEVICE_ADD(_tag, I82875P_OVERFLOW, 0x8086257e, 0x02, 0x088000, _subdevice_id) class i82875p_host_device : public pci_host_device { public: i82875p_host_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); void set_cpu_tag(const char *tag); void set_ram_size(int ram_size); 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 DECLARE_ADDRESS_MAP(config_map, 32) override; virtual DECLARE_READ8_MEMBER(capptr_r) override; 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); protected: virtual void device_start() override; virtual void device_reset() override; private: DECLARE_ADDRESS_MAP(agp_translation_map, 32); const char *cpu_tag; int ram_size; cpu_device *cpu; std::vector 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; }; 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); 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: DECLARE_ADDRESS_MAP(overflow_map, 32); uint8_t dram_row_boundary[8], dram_row_attribute[4]; uint32_t dram_timing, dram_controller_mode; }; extern const device_type I82875P_HOST; extern const device_type I82875P_AGP; extern const device_type I82875P_OVERFLOW; #endif