// license:BSD-3-Clause // copyright-holders: /************************************************************************************************** Alliance Semiconductor ProMotion family - aT3D is the 2d base of 3dfx Voodoo Rush on Hercules Stingray 128/3D cards at least (thru THP i/f, reportedly slow) - On its own aT3D is infamously known to be a terrible 3D card cfr. https://www.youtube.com/watch?v=vCz-rSlSREA TODO: - Requires own family of VGA based devices; - Catch is that said device mirrors the PCI space in memory mapped regs, along with the (more or less) typical SVGA regs of the mid-90s; - Black screens when mounted; - Bare documentation, covering pinout and register names only. aT3D datasheet available for crosschecking; **************************************************************************************************/ #include "emu.h" #include "promotion.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(PROMOTION3210, promotion3210_device, "promotion3210", "Alliance Semiconductor ProMotion 3210") //DEFINE_DEVICE_TYPE(PROMOTION6410, promotion6410_device, "promotion6410", "Alliance Semiconductor ProMotion 6410") //DEFINE_DEVICE_TYPE(PROMOTION6422, promotion6422_device, "promotion6422", "Alliance Semiconductor ProMotion 6422") //DEFINE_DEVICE_TYPE(PROMOTION6424, promotion6424_device, "promotion6424", "Alliance Semiconductor ProMotion 6424") // Alias of above? //DEFINE_DEVICE_TYPE(PROMOTIONAT24, promotionat24_device, "promotionat24", "Alliance Semiconductor ProMotion aT24") //DEFINE_DEVICE_TYPE(PROMOTIONAT3D, promotionat3d_device, "promotionat3d", "Alliance Semiconductor ProMotion aT3D") //DEFINE_DEVICE_TYPE(PROMOTIONAT25, promotionat25_device, "promotionat25", "Alliance Semiconductor ProMotion aT25") promotion3210_device::promotion3210_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_vga(*this, "vga") , m_vga_rom(*this, "vga_rom") { // vendor ID 0x1142 Alliance Semiconductor Corporation // subvendor unknown set_ids(0x11423210, 0x00, 0x030000, 0x11423210); } promotion3210_device::promotion3210_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : promotion3210_device(mconfig, PROMOTION3210, tag, owner, clock) { } ROM_START( promotion3210 ) ROM_REGION32_LE( 0x8000, "vga_rom", ROMREGION_ERASEFF ) ROM_SYSTEM_BIOS( 0, "miro", "miro Video 12PD" ) ROMX_LOAD( "mirovideo12pd.vbi", 0x0000, 0x8000, CRC(46041709) SHA1(bd43f05ae7ddb4bbf515132b72b32719b60e6950), ROM_BIOS(0) ) ROM_END const tiny_rom_entry *promotion3210_device::device_rom_region() const { return ROM_NAME(promotion3210); } void promotion3210_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_vga, FUNC(vga_device::screen_update)); PROMOTION_VGA(config, m_vga, 0); m_vga->set_screen("screen"); // TODO: configurable between 1 and 4 MB (2x EDO slots on board) // Only known OEM Board (Miro) has 1MB m_vga->set_vram_size(1*1024*1024); // AT&T ATT20C408-13 PrecisionDAC // Reused by ATI Mach64? } void promotion3210_device::device_start() { pci_card_device::device_start(); add_map( 4*1024*1024, M_MEM, FUNC(promotion3210_device::vram_aperture_map)); add_rom((u8 *)m_vga_rom->base(), 0x8000); expansion_rom_base = 0xc0000; // INTA# intr_pin = 1; } void promotion3210_device::device_reset() { pci_card_device::device_reset(); // TODO: to be checked command = 0x0000; status = 0x0000; command_mask = 0x23; remap_cb(); } // bare mapping, except for stuff being mirrored at memory-mapped offsets void promotion3210_device::config_map(address_map &map) { pci_card_device::config_map(map); } void promotion3210_device::vram_aperture_map(address_map &map) { } // TODO: this should really be a subclass of VGA void promotion3210_device::legacy_memory_map(address_map &map) { map(0xa0000, 0xbffff).rw(FUNC(promotion3210_device::vram_r), FUNC(promotion3210_device::vram_w)); } void promotion3210_device::legacy_io_map(address_map &map) { map(0, 0x02f).m(m_vga, FUNC(vga_device::io_map)); } uint8_t promotion3210_device::vram_r(offs_t offset) { return downcast(m_vga.target())->mem_r(offset); } void promotion3210_device::vram_w(offs_t offset, uint8_t data) { downcast(m_vga.target())->mem_w(offset, data); } void promotion3210_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 (1) { memory_space->install_readwrite_handler(0xa0000, 0xbffff, read8sm_delegate(*this, FUNC(promotion3210_device::vram_r)), write8sm_delegate(*this, FUNC(promotion3210_device::vram_w))); io_space->install_device(0x03b0, 0x03df, *this, &promotion3210_device::legacy_io_map); //memory_space->install_rom(0xc0000, 0xcffff, (void *)expansion_rom); } }