diff options
Diffstat (limited to 'src/devices/bus/pci/wd9710_pci.cpp')
-rw-r--r-- | src/devices/bus/pci/wd9710_pci.cpp | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/src/devices/bus/pci/wd9710_pci.cpp b/src/devices/bus/pci/wd9710_pci.cpp new file mode 100644 index 00000000000..4e4ec013bb5 --- /dev/null +++ b/src/devices/bus/pci/wd9710_pci.cpp @@ -0,0 +1,132 @@ +// license:BSD-3-Clause +// copyright-holders: Angelo Salese +/************************************************************************************************** + +WD9710 PCI cards + +Essentially a WD90C33 upgraded to PCI. + +TODO: +- Any mode beyond 4bpp is bound to fail; + +**************************************************************************************************/ + +#include "emu.h" +#include "wd9710_pci.h" + +#define LOG_WARN (1U << 1) + +#define VERBOSE (LOG_GENERAL | LOG_WARN) +//#define LOG_OUTPUT_FUNC osd_printf_info +#include "logmacro.h" + +#define LOGWARN(...) LOGMASKED(LOG_WARN, __VA_ARGS__) + + +DEFINE_DEVICE_TYPE(WD9710_PCI, wd9710_pci_device, "wd9710_pci", "Western Digital WD9710-MZ") +//DEFINE_DEVICE_TYPE(WD9712_PCI, wd9712_pci_device, "wd9712_pci", "Western Digital WD9712-??") + + +wd9710_pci_device::wd9710_pci_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) + : pci_card_device(mconfig, type, tag, owner, clock) + , m_svga(*this, "svga") + , m_vga_rom(*this, "vga_rom") +{ + set_ids(0x101c9710, 0x00, 0x030000, 0x101c9710); +} + +wd9710_pci_device::wd9710_pci_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) + : wd9710_pci_device(mconfig, WD9710_PCI, tag, owner, clock) +{ +} + +ROM_START( wd9710mz ) + ROM_REGION32_LE( 0x8000, "vga_rom", ROMREGION_ERASEFF ) + // Philips Paradise Pipeline 64 + ROM_SYSTEM_BIOS( 0, "paradise", "Paradise WD9710 v1.01.00 12/06/95") + ROMX_LOAD( "bios.bin", 0x0000, 0x8000, CRC(98338249) SHA1(b5dbb28d60adf53c711ec16bc45eab102e40b6a2), ROM_BIOS(0) ) + ROM_IGNORE( 0x8000 ) +ROM_END + +const tiny_rom_entry *wd9710_pci_device::device_rom_region() const +{ + return ROM_NAME(wd9710mz); +} + +void wd9710_pci_device::device_add_mconfig(machine_config &config) +{ + screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); + screen.set_raw(25.175_MHz_XTAL, 800, 0, 640, 524, 0, 480); + screen.set_screen_update("svga", FUNC(wd90c33_vga_device::screen_update)); + + // TODO: bump to specific WD9710 VGA core + WD90C33(config, m_svga, 0); + m_svga->set_screen("screen"); + // 2MB, 4MB + m_svga->set_vram_size(4*1024*1024); +} + +void wd9710_pci_device::device_start() +{ + pci_card_device::device_start(); + + add_map(4*1024*1024, M_MEM, FUNC(wd9710_pci_device::vram_aperture_map)); + + add_rom((u8 *)m_vga_rom->base(), 0x8000); + expansion_rom_base = 0xc0000; + + // INTA# + intr_pin = 1; +} + +void wd9710_pci_device::device_reset() +{ + pci_card_device::device_reset(); + + command = 0x0000; + command_mask = 0x23; + // TODO: configurable thru config bit 20 + status = 0x0200; + + remap_cb(); +} + +void wd9710_pci_device::config_map(address_map &map) +{ + pci_card_device::config_map(map); +} + +void wd9710_pci_device::vram_aperture_map(address_map &map) +{ + map(0x000000, 0x3fffff).rw(m_svga, FUNC(wd90c33_vga_device::mem_linear_r), FUNC(wd90c33_vga_device::mem_linear_w)); +} + +void wd9710_pci_device::legacy_io_map(address_map &map) +{ + map(0, 0x02f).m(m_svga, FUNC(wd90c33_vga_device::io_map)); +} + +uint8_t wd9710_pci_device::vram_r(offs_t offset) +{ + return downcast<wd90c33_vga_device *>(m_svga.target())->mem_r(offset); +} + +void wd9710_pci_device::vram_w(offs_t offset, uint8_t data) +{ + downcast<wd90c33_vga_device *>(m_svga.target())->mem_w(offset, data); +} + +void wd9710_pci_device::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) +{ + if (BIT(command, 1)) + { + memory_space->install_readwrite_handler(0xa0000, 0xbffff, read8sm_delegate(*this, FUNC(wd9710_pci_device::vram_r)), write8sm_delegate(*this, FUNC(wd9710_pci_device::vram_w))); + } + + if (BIT(command, 0)) + { + io_space->install_device(0x03b0, 0x03df, *this, &wd9710_pci_device::legacy_io_map); + // TODO: PnP ports (shouldn't have any other BAR space) + } +} |