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// license:BSD-3-Clause
// copyright-holders:Barry Rodewald
/*
* S3 ViRGE 3D accelerator card
*/
#ifndef MAME_VIDEO_VIRGE_PCI_H
#define MAME_VIDEO_VIRGE_PCI_H
#pragma once
#include "machine/pci.h"
#include "bus/isa/s3virge.h"
class virge_pci_device : public pci_device
{
public:
template <typename T>
virge_pci_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock, T &&screen_tag)
: virge_pci_device(mconfig, tag, owner, clock)
{
set_screen_tag(std::forward<T>(screen_tag));
}
enum
{
LAW_64K = 0,
LAW_1MB,
LAW_2MB,
LAW_4MB
};
virge_pci_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, const XTAL &clock);
virge_pci_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
void lfb_map(address_map &map);
void mmio_map(address_map& map);
uint32_t vga_3b0_r(offs_t offset, uint32_t mem_mask = ~0);
void vga_3b0_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
uint32_t vga_3c0_r(offs_t offset, uint32_t mem_mask = ~0);
void vga_3c0_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
uint32_t vga_3d0_r(offs_t offset, uint32_t mem_mask = ~0);
void vga_3d0_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
uint8_t vram_r(offs_t offset);
void vram_w(offs_t offset, uint8_t data);
uint32_t base_address_r();
void base_address_w(offs_t offset, uint32_t data);
protected:
virtual void device_start() override;
virtual void device_add_mconfig(machine_config &config) override;
virtual const tiny_rom_entry *device_rom_region() const 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;
void postload(void);
required_device<s3virge_vga_device> m_vga;
required_memory_region m_bios;
optional_device<screen_device> m_screen;
private:
void refresh_linear_window();
uint8_t m_current_crtc_reg;
};
class virgedx_pci_device : public virge_pci_device
{
public:
template <typename T>
virgedx_pci_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock, T &&screen_tag)
: virgedx_pci_device(mconfig, tag, owner, clock)
{
set_screen_tag(std::forward<T>(screen_tag));
}
virgedx_pci_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
protected:
virtual void device_start() override;
virtual void device_add_mconfig(machine_config &config) override;
virtual const tiny_rom_entry *device_rom_region() const override;
// required_device<s3virge_vga_device> m_vga;
// required_memory_region m_bios;
// optional_device<screen_device> m_screen;
};
DECLARE_DEVICE_TYPE(VIRGE_PCI, virge_pci_device)
DECLARE_DEVICE_TYPE(VIRGEDX_PCI, virgedx_pci_device)
#endif
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