// license:BSD-3-Clause // copyright-holders:Miodrag Milanovic /*************************************************************************** pci.h PCI bus ***************************************************************************/ #ifndef MAME_BUS_LPCI_PCI_H #define MAME_BUS_LPCI_PCI_H #pragma once //************************************************************************** // TYPE DEFINITIONS //************************************************************************** class pci_bus_device; // ======================> pci_device_interface class pci_device_interface : public device_slot_card_interface { public: // construction/destruction virtual ~pci_device_interface(); virtual uint32_t pci_read(pci_bus_device *pcibus, int function, int offset, uint32_t mem_mask) = 0; virtual void pci_write(pci_bus_device *pcibus, int function, int offset, uint32_t data, uint32_t mem_mask) = 0; protected: pci_device_interface(const machine_config &mconfig, device_t &device); }; class pci_connector_device : public device_t, public device_slot_interface { public: pci_connector_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); virtual ~pci_connector_device(); pci_device_interface *get_device(); protected: virtual void device_start() override; }; DECLARE_DEVICE_TYPE(PCI_CONNECTOR, pci_connector_device) // ======================> pci_bus_device class pci_bus_device : public device_t { public: // construction/destruction pci_bus_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); DECLARE_READ32_MEMBER( read ); DECLARE_WRITE32_MEMBER( write ); DECLARE_READ64_MEMBER( read_64be ); DECLARE_WRITE64_MEMBER( write_64be ); void set_busnum(int busnum) { m_busnum = busnum; } void set_father(const char *father) { m_father = father; } void set_device(int num, const char *tag) { m_devtag[num] = tag; } pci_bus_device *pci_search_bustree(int busnum, int devicenum, pci_bus_device *pcibus); void add_sibling(pci_bus_device *sibling, int busnum); protected: // device-level overrides virtual void device_start() override; virtual void device_reset() override; virtual void device_post_load() override; private: uint8_t m_busnum; const char * m_devtag[32]; pci_device_interface *m_device[32]; const char * m_father; pci_bus_device * m_siblings[8]; uint8_t m_siblings_busnum[8]; int m_siblings_count; offs_t m_address; int8_t m_devicenum; // device number we are addressing int8_t m_busnumber; // pci bus number we are addressing pci_bus_device * m_busnumaddr; // pci bus we are addressing }; // device type definition DECLARE_DEVICE_TYPE(PCI_BUS, pci_bus_device) /*************************************************************************** DEVICE CONFIGURATION MACROS ***************************************************************************/ #define MCFG_PCI_BUS_ADD(_tag, _busnum) \ MCFG_DEVICE_ADD(_tag, PCI_BUS, 0) \ downcast(device)->set_busnum(_busnum); #define MCFG_PCI_BUS_DEVICE(_tag, _slot_intf, _def_slot, _fixed) \ MCFG_DEVICE_ADD(_tag, PCI_CONNECTOR, 0) \ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, _fixed) #define MCFG_PCI_BUS_SIBLING(_father_tag) \ downcast(device)->set_father(_father_tag); #endif // MAME_BUS_LPCI_PCI_H