diff options
Diffstat (limited to 'src/devices/bus/pci/oti_spitfire.cpp')
-rw-r--r-- | src/devices/bus/pci/oti_spitfire.cpp | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/src/devices/bus/pci/oti_spitfire.cpp b/src/devices/bus/pci/oti_spitfire.cpp new file mode 100644 index 00000000000..a3e6ecbf7b9 --- /dev/null +++ b/src/devices/bus/pci/oti_spitfire.cpp @@ -0,0 +1,146 @@ +// license:BSD-3-Clause +// copyright-holders:Angelo Salese +/************************************************************************************************** + +OAK OTI Spitfire PCI cards + +VBE 1.2, XGA + +TODO: +- can strap base class and header to be multifunction + +**************************************************************************************************/ + +#include "emu.h" +#include "oti_spitfire.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__) + + +//OTI-64105 +//OTI-64107 +DEFINE_DEVICE_TYPE(OTI64111_PCI, oti64111_pci_device, "oti64111_pci", "OTI-64111 \"Spitfire\"") +//OTI-64217 +//OTI-64317 + + +oti64111_pci_device::oti64111_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") +{ + // Rev C + set_ids(0x104e0111, 0x30, 0x030000, 0x104e0111); +} + +oti64111_pci_device::oti64111_pci_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) + : oti64111_pci_device(mconfig, OTI64111_PCI, tag, owner, clock) +{ +} + +ROM_START( oti64111 ) + ROM_REGION32_LE( 0x8000, "vga_rom", ROMREGION_ERASEFF ) + ROM_SYSTEM_BIOS( 0, "spitfire", "v111.20 10/10/96" ) + ROMX_LOAD( "ot64111spitfire.vbi", 0x0000, 0x8000, CRC(fb031e98) SHA1(16826d93bc2a09d91b52cca3f72447501daee2d2), ROM_BIOS(0) ) +ROM_END + +const tiny_rom_entry *oti64111_pci_device::device_rom_region() const +{ + return ROM_NAME(oti64111); +} + +void oti64111_pci_device::device_add_mconfig(machine_config &config) +{ + screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); + screen.set_raw(XTAL(25'174'800), 900, 0, 640, 526, 0, 480); + screen.set_screen_update(m_svga, FUNC(oak_oti111_vga_device::screen_update)); + + OTI111(config, m_svga, 0); + m_svga->set_screen("screen"); + m_svga->set_vram_size(4*1024*1024); +} + +void oti64111_pci_device::device_start() +{ + pci_card_device::device_start(); + + add_map( 256, M_MEM, FUNC(oti64111_pci_device::mmio_map)); + add_map(8*1024*1024, M_MEM, FUNC(oti64111_pci_device::vram_aperture_map)); + add_map( 256, M_IO, FUNC(oti64111_pci_device::extio_map)); + + add_rom((u8 *)m_vga_rom->base(), 0x8000); + expansion_rom_base = 0xc0000; + + // INTA# + intr_pin = 1; + + // TODO: (default?) min_gnt = 0xff, max_lat = 0x01 +} + +void oti64111_pci_device::device_reset() +{ + pci_card_device::device_reset(); + + // enable address/data stepping, enable bus snoop for palette regs + command = 0x00a0; + // fast back-to-back, medium DEVSEL# + status = 0x0280; + + remap_cb(); +} + +void oti64111_pci_device::config_map(address_map &map) +{ + pci_card_device::config_map(map); +} + +void oti64111_pci_device::mmio_map(address_map &map) +{ + map(0x00, 0x7f).rw(m_svga, FUNC(oak_oti111_vga_device::xga_read), FUNC(oak_oti111_vga_device::xga_write)); + map(0x80, 0xbf).m(m_svga, FUNC(oak_oti111_vga_device::multimedia_map)); +} + +void oti64111_pci_device::vram_aperture_map(address_map &map) +{ + map(0x000000, 0x7fffff).rw(m_svga, FUNC(oak_oti111_vga_device::mem_linear_r), FUNC(oak_oti111_vga_device::mem_linear_w)); +} + +void oti64111_pci_device::extio_map(address_map &map) +{ + map(0x00e0, 0x00ef).m(m_svga, FUNC(oak_oti111_vga_device::ramdac_mmio_map)); +} + +void oti64111_pci_device::legacy_io_map(address_map &map) +{ + map(0, 0x02f).m(m_svga, FUNC(oak_oti111_vga_device::io_map)); +} + +uint8_t oti64111_pci_device::vram_r(offs_t offset) +{ + return downcast<oak_oti111_vga_device *>(m_svga.target())->mem_r(offset); +} + +void oti64111_pci_device::vram_w(offs_t offset, uint8_t data) +{ + downcast<oak_oti111_vga_device *>(m_svga.target())->mem_w(offset, data); +} + +void oti64111_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(oti64111_pci_device::vram_r)), write8sm_delegate(*this, FUNC(oti64111_pci_device::vram_w))); + } + + if (BIT(command, 0)) + { + io_space->install_device(0x03b0, 0x03df, *this, &oti64111_pci_device::legacy_io_map); + } +} |