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// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
/***************************************************************************
machine/lpci.h
Legacy PCI bus
***************************************************************************/
#ifndef MAME_MACHINE_LPCI_H
#define MAME_MACHINE_LPCI_H
#pragma once
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> pci_bus_legacy_device
class pci_bus_legacy_device : public device_t
{
public:
typedef device_delegate<uint32_t (int function, int reg, uint32_t mem_mask)> pci_bus_legacy_read_delegate;
typedef device_delegate<void (int function, int reg, uint32_t data, uint32_t mem_mask)> pci_bus_legacy_write_delegate;
// construction/destruction
pci_bus_legacy_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, uint8_t busnum)
: pci_bus_legacy_device(mconfig, tag, owner, clock)
{
set_busnum(busnum);
}
pci_bus_legacy_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; }
template <typename F, typename G>
void set_device(int num, F &&read, const char *rname, G &&write, const char *wname)
{
m_read_callback[num].set(std::forward<F>(read), rname);
m_write_callback[num].set(std::forward<G>(write), wname);
}
template <typename T, typename F, typename G>
void set_device(int num, T &&target, F &&read, const char *rname, G &&write, const char *wname)
{
m_read_callback[num].set(target, std::forward<F>(read), rname);
m_write_callback[num].set(target, std::forward<G>(write), wname);
}
pci_bus_legacy_device *pci_search_bustree(int busnum, int devicenum, pci_bus_legacy_device *pcibus);
void add_sibling(pci_bus_legacy_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;
pci_bus_legacy_read_delegate::array<32> m_read_callback;
pci_bus_legacy_write_delegate::array<32> m_write_callback;
const char * m_father;
pci_bus_legacy_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_legacy_device * m_busnumaddr; // pci bus we are addressing
};
// device type definition
DECLARE_DEVICE_TYPE(PCI_BUS_LEGACY, pci_bus_legacy_device)
#endif // MAME_MACHINE_LPCI_H
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