// license:BSD-3-Clause // copyright-holders:Olivier Galibert #include "emu.h" #include "pci.h" DEFINE_DEVICE_TYPE(PCI_ROOT, pci_root_device, "pci_root", "PCI virtual root") DEFINE_DEVICE_TYPE(PCI_BRIDGE, pci_bridge_device, "pci_bridge", "PCI-PCI Bridge") void pci_device::config_map(address_map &map) { map(0x00, 0x01).r(FUNC(pci_device::vendor_r)); map(0x02, 0x03).r(FUNC(pci_device::device_r)); map(0x04, 0x05).rw(FUNC(pci_device::command_r), FUNC(pci_device::command_w)); map(0x06, 0x07).r(FUNC(pci_device::status_r)); map(0x08, 0x0b).r(FUNC(pci_device::class_rev_r)); map(0x0c, 0x0c).r(FUNC(pci_device::cache_line_size_r)); map(0x0d, 0x0d).r(FUNC(pci_device::latency_timer_r)); map(0x0e, 0x0e).r(FUNC(pci_device::header_type_r)); map(0x0f, 0x0f).r(FUNC(pci_device::bist_r)); map(0x0c, 0x0f).nopw(); map(0x10, 0x27).rw(FUNC(pci_device::address_base_r), FUNC(pci_device::address_base_w)); // Cardbus CIS pointer at 28 map(0x2c, 0x2d).r(FUNC(pci_device::subvendor_r)); map(0x2e, 0x2f).r(FUNC(pci_device::subsystem_r)); map(0x2c, 0x2f).nopw(); map(0x30, 0x33).rw(FUNC(pci_device::expansion_base_r), FUNC(pci_device::expansion_base_w)); map(0x34, 0x34).r(FUNC(pci_device::capptr_r)); map(0x3c, 0x3c).rw(FUNC(pci_device::interrupt_line_r), FUNC(pci_device::interrupt_line_w)); map(0x3d, 0x3d).rw(FUNC(pci_device::interrupt_pin_r), FUNC(pci_device::interrupt_pin_w)); } void pci_bridge_device::config_map(address_map &map) { map(0x00, 0x01).r(FUNC(pci_bridge_device::vendor_r)); map(0x02, 0x03).r(FUNC(pci_bridge_device::device_r)); map(0x04, 0x05).rw(FUNC(pci_bridge_device::command_r), FUNC(pci_bridge_device::command_w)); map(0x06, 0x07).r(FUNC(pci_bridge_device::status_r)); map(0x08, 0x0b).r(FUNC(pci_bridge_device::class_rev_r)); map(0x0c, 0x0c).r(FUNC(pci_bridge_device::cache_line_size_r)); map(0x0d, 0x0d).r(FUNC(pci_bridge_device::latency_timer_r)); map(0x0e, 0x0e).r(FUNC(pci_bridge_device::header_type_r)); map(0x0f, 0x0f).r(FUNC(pci_bridge_device::bist_r)); map(0x10, 0x17).rw(FUNC(pci_bridge_device::b_address_base_r), FUNC(pci_bridge_device::b_address_base_w)); map(0x18, 0x18).rw(FUNC(pci_bridge_device::primary_bus_r), FUNC(pci_bridge_device::primary_bus_w)); map(0x19, 0x19).rw(FUNC(pci_bridge_device::secondary_bus_r), FUNC(pci_bridge_device::secondary_bus_w)); map(0x1a, 0x1a).rw(FUNC(pci_bridge_device::subordinate_bus_r), FUNC(pci_bridge_device::subordinate_bus_w)); map(0x1b, 0x1b).rw(FUNC(pci_bridge_device::secondary_latency_r), FUNC(pci_bridge_device::secondary_latency_w)); map(0x1c, 0x1c).rw(FUNC(pci_bridge_device::iobase_r), FUNC(pci_bridge_device::iobase_w)); map(0x1d, 0x1d).rw(FUNC(pci_bridge_device::iolimit_r), FUNC(pci_bridge_device::iolimit_w)); map(0x1e, 0x1f).rw(FUNC(pci_bridge_device::secondary_status_r), FUNC(pci_bridge_device::secondary_status_w)); map(0x20, 0x21).rw(FUNC(pci_bridge_device::memory_base_r), FUNC(pci_bridge_device::memory_base_w)); map(0x22, 0x23).rw(FUNC(pci_bridge_device::memory_limit_r), FUNC(pci_bridge_device::memory_limit_w)); map(0x24, 0x25).rw(FUNC(pci_bridge_device::prefetch_base_r), FUNC(pci_bridge_device::prefetch_base_w)); map(0x26, 0x27).rw(FUNC(pci_bridge_device::prefetch_limit_r), FUNC(pci_bridge_device::prefetch_limit_w)); map(0x28, 0x2b).rw(FUNC(pci_bridge_device::prefetch_baseu_r), FUNC(pci_bridge_device::prefetch_baseu_w)); map(0x2c, 0x2f).rw(FUNC(pci_bridge_device::prefetch_limitu_r), FUNC(pci_bridge_device::prefetch_limitu_w)); map(0x30, 0x31).rw(FUNC(pci_bridge_device::iobaseu_r), FUNC(pci_bridge_device::iobaseu_w)); map(0x32, 0x33).rw(FUNC(pci_bridge_device::iolimitu_r), FUNC(pci_bridge_device::iolimitu_w)); map(0x34, 0x34).r(FUNC(pci_bridge_device::capptr_r)); map(0x38, 0x3b).rw(FUNC(pci_bridge_device::expansion_base_r), FUNC(pci_bridge_device::expansion_base_w)); map(0x3c, 0x3c).rw(FUNC(pci_bridge_device::interrupt_line_r), FUNC(pci_bridge_device::interrupt_line_w)); map(0x3d, 0x3d).rw(FUNC(pci_bridge_device::interrupt_pin_r), FUNC(pci_bridge_device::interrupt_pin_w)); map(0x3e, 0x3f).rw(FUNC(pci_bridge_device::bridge_control_r), FUNC(pci_bridge_device::bridge_control_w)); } pci_device::pci_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, type, tag, owner, clock) , m_region(*this, DEVICE_SELF) { main_id = 0xffffffff; revision = 0x00; pclass = 0xffffff; subsystem_id = 0xffffffff; is_multifunction_device = false; intr_pin = 0x0; intr_line = 0xff; } void pci_device::set_ids(uint32_t _main_id, uint8_t _revision, uint32_t _pclass, uint32_t _subsystem_id) { main_id = _main_id; revision = _revision; pclass = _pclass; subsystem_id = _subsystem_id; } void pci_device::device_start() { command = 0x0080; command_mask = 0x01bf; status = 0x0000; for(int i=0; i<6; i++) { bank_infos[i].adr = -1; bank_infos[i].size = 0; bank_infos[i].flags = 0; bank_reg_infos[i].bank = -1; bank_reg_infos[i].hi = 0; } bank_count = 0; bank_reg_count = 0; expansion_rom = nullptr; expansion_rom_size = 0; expansion_rom_base = 0; for (int i = 0; i < ARRAY_LENGTH(bank_infos); i++) { save_item(NAME(bank_infos[i].adr), i); } save_item(NAME(command)); save_item(NAME(command_mask)); save_item(NAME(status)); save_item(NAME(intr_line)); save_item(NAME(intr_pin)); } void pci_device::device_reset() { } uint32_t pci_device::unmapped_r(offs_t offset, uint32_t mem_mask, int bank) { logerror("%s: unmapped read from %08x & %08x (%s)\n", machine().describe_context(), offset*4, mem_mask, bank_infos[bank].map.name()); return 0; } void pci_device::unmapped_w(offs_t offset, uint32_t data, uint32_t mem_mask, int bank) { logerror("%s: unmapped write to %08x = %08x & %08x (%s)\n", machine().describe_context(), offset*4, data, mem_mask, bank_infos[bank].map.name()); } READ32_MEMBER(pci_device::unmapped0_r) { return unmapped_r(offset, mem_mask, 0); } WRITE32_MEMBER(pci_device::unmapped0_w) { return unmapped_w(offset, data, mem_mask, 0); } READ32_MEMBER(pci_device::unmapped1_r) { return unmapped_r(offset, mem_mask, 1); } WRITE32_MEMBER(pci_device::unmapped1_w) { return unmapped_w(offset, data, mem_mask, 1); } READ32_MEMBER(pci_device::unmapped2_r) { return unmapped_r(offset, mem_mask, 2); } WRITE32_MEMBER(pci_device::unmapped2_w) { return unmapped_w(offset, data, mem_mask, 2); } READ32_MEMBER(pci_device::unmapped3_r) { return unmapped_r(offset, mem_mask, 3); } WRITE32_MEMBER(pci_device::unmapped3_w) { return unmapped_w(offset, data, mem_mask, 3); } READ32_MEMBER(pci_device::unmapped4_r) { return unmapped_r(offset, mem_mask, 4); } WRITE32_MEMBER(pci_device::unmapped4_w) { return unmapped_w(offset, data, mem_mask, 4); } READ32_MEMBER(pci_device::unmapped5_r) { return unmapped_r(offset, mem_mask, 5); } WRITE32_MEMBER(pci_device::unmapped5_w) { return unmapped_w(offset, data, mem_mask, 5); } READ32_MEMBER(pci_device::address_base_r) { if(bank_reg_infos[offset].bank == -1) return 0; int bid = bank_reg_infos[offset].bank; if(bank_reg_infos[offset].hi) return bank_infos[bid].adr >> 32; int flags = bank_infos[bid].flags; return (bank_infos[bid].adr & ~(bank_infos[bid].size - 1)) | (flags & M_IO ? 1 : 0) | (flags & M_64A ? 4 : 0) | (flags & M_PREF ? 8 : 0); } WRITE32_MEMBER(pci_device::address_base_w) { if(bank_reg_infos[offset].bank == -1) { logerror("write to address base (%d, %08x) not linked to any bank\n", offset, data); return; } int bid = bank_reg_infos[offset].bank; if(bank_reg_infos[offset].hi) bank_infos[bid].adr = (bank_infos[bid].adr & 0xffffffff) | (uint64_t(data) << 32); else { bank_infos[bid].adr = (bank_infos[bid].adr & 0xffffffff00000000U) | data; } remap_cb(); } READ16_MEMBER(pci_device::vendor_r) { return main_id >> 16; } READ16_MEMBER(pci_device::device_r) { return main_id; } READ16_MEMBER(pci_device::command_r) { return command; } WRITE16_MEMBER(pci_device::command_w) { uint16_t old = command; mem_mask &= command_mask; COMBINE_DATA(&command); logerror("command = %04x\n", command); if ((old ^ command) & 3) remap_cb(); } READ16_MEMBER(pci_device::status_r) { return status; } READ32_MEMBER(pci_device::class_rev_r) { return (pclass << 8) | revision; } READ8_MEMBER(pci_device::cache_line_size_r) { return 0x00; } READ8_MEMBER(pci_device::latency_timer_r) { return 0x00; } void pci_device::set_multifunction_device(bool enable) { is_multifunction_device = enable; } READ8_MEMBER(pci_device::header_type_r) { return is_multifunction_device ? 0x80 : 0x00; } READ8_MEMBER(pci_device::bist_r) { return 0x00; } READ16_MEMBER(pci_device::subvendor_r) { return subsystem_id >> 16; } READ16_MEMBER(pci_device::subsystem_r) { return subsystem_id; } READ32_MEMBER(pci_device::expansion_base_r) { return expansion_rom_base; } WRITE32_MEMBER(pci_device::expansion_base_w) { COMBINE_DATA(&expansion_rom_base); if(!expansion_rom_size) expansion_rom_base = 0; else { // Trick to get an address resolution at expansion_rom_size with minimal granularity of 0x800, plus bit 1 set to keep the on/off information expansion_rom_base &= 0xfffff801 & (1-expansion_rom_size); } remap_cb(); } READ8_MEMBER(pci_device::capptr_r) { return 0x00; } READ8_MEMBER(pci_device::interrupt_line_r) { logerror("interrupt_line_r = %02x\n", intr_line); return intr_line; } WRITE8_MEMBER(pci_device::interrupt_line_w) { COMBINE_DATA(&intr_line); logerror("interrupt_line_w %02x\n", data); } READ8_MEMBER(pci_device::interrupt_pin_r) { logerror("interrupt_pin_r = %02x\n", intr_pin); return intr_pin; } WRITE8_MEMBER(pci_device::interrupt_pin_w) { COMBINE_DATA(&intr_pin); logerror("interrupt_pin_w = %02x\n", data); } void pci_device::set_remap_cb(mapper_cb _remap_cb) { remap_cb = _remap_cb; } void pci_device::reset_all_mappings() { } void pci_device::map_device(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) { for(int i=0; i= 0xfffffffc) continue; if (bi.flags & M_IO) { if (~command & 1) continue; } else { if (~command & 2) continue; } if(!bi.size || (bi.flags & M_DISABLED)) continue; address_space *space; uint64_t start = bi.adr & ~(bi.size - 1); if(bi.flags & M_IO) { space = io_space; start += io_offset; } else { space = memory_space; start += memory_offset; } uint64_t end = start + bi.size-1; switch(i) { case 0: space->install_readwrite_handler(start, end, read32_delegate(*this, FUNC(pci_device::unmapped0_r)), write32_delegate(*this, FUNC(pci_device::unmapped0_w))); break; case 1: space->install_readwrite_handler(start, end, read32_delegate(*this, FUNC(pci_device::unmapped1_r)), write32_delegate(*this, FUNC(pci_device::unmapped1_w))); break; case 2: space->install_readwrite_handler(start, end, read32_delegate(*this, FUNC(pci_device::unmapped2_r)), write32_delegate(*this, FUNC(pci_device::unmapped2_w))); break; case 3: space->install_readwrite_handler(start, end, read32_delegate(*this, FUNC(pci_device::unmapped3_r)), write32_delegate(*this, FUNC(pci_device::unmapped3_w))); break; case 4: space->install_readwrite_handler(start, end, read32_delegate(*this, FUNC(pci_device::unmapped4_r)), write32_delegate(*this, FUNC(pci_device::unmapped4_w))); break; case 5: space->install_readwrite_handler(start, end, read32_delegate(*this, FUNC(pci_device::unmapped5_r)), write32_delegate(*this, FUNC(pci_device::unmapped5_w))); break; } space->install_device_delegate(start, end, *bi.device, bi.map); logerror("map %s at %0*x-%0*x\n", bi.map.name(), bi.flags & M_IO ? 4 : 8, uint32_t(start), bi.flags & M_IO ? 4 : 8, uint32_t(end)); } map_extra(memory_window_start, memory_window_end, memory_offset, memory_space, io_window_start, io_window_end, io_offset, io_space); if(expansion_rom_base & 1) { logerror("map expansion rom at %08x-%08x\n", expansion_rom_base & ~1, (expansion_rom_base & ~1) + expansion_rom_size - 1); uint32_t start = (expansion_rom_base & ~1) + memory_offset; uint32_t end = start + expansion_rom_size - 1; if(end > memory_window_end) end = memory_window_end; memory_space->install_rom(start, end, (void *)expansion_rom); } } void 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) { } void pci_device::map_config(uint8_t device, address_space *config_space) { config_space->install_device(device << 12, (device << 12) | 0xfff, *this, &pci_device::config_map); } void pci_device::skip_map_regs(int count) { bank_reg_count += count; assert(bank_reg_count <= 6); } void pci_device::add_map(uint64_t size, int flags, const address_map_constructor &map, device_t *relative_to) { assert(bank_count < 6); assert((size & 3) == 0); int bid = bank_count++; bank_infos[bid].map = map; bank_infos[bid].device = relative_to ? relative_to : this; bank_infos[bid].adr = 0; bank_infos[bid].size = size; bank_infos[bid].flags = flags; if(flags & M_64A) { assert(bank_reg_count < 5); int breg = bank_reg_count; bank_reg_infos[breg].bank = bid; bank_reg_infos[breg].hi = 0; bank_reg_infos[breg+1].bank = bid; bank_reg_infos[breg+1].hi = 1; bank_reg_count += 2; } else { assert(bank_reg_count < 6); int breg = bank_reg_count++; bank_reg_infos[breg].bank = bid; bank_reg_infos[breg].hi = 0; } logerror("Device %s (%s) has 0x%x bytes of %s named %s\n", tag(), name(), size, flags & M_IO ? "io" : "memory", bank_infos[bid].map.name()); } void pci_device::add_rom(const uint8_t *rom, uint32_t size) { expansion_rom = rom; expansion_rom_size = size; logerror("Device %s (%s) has 0x%x bytes of expansion rom\n", tag(), name(), size); } void pci_device::add_rom_from_region() { add_rom(m_region->base(), m_region->bytes()); } void pci_device::set_map_address(int id, uint64_t adr) { bank_infos[id].adr = adr; remap_cb(); } void pci_device::set_map_size(int id, uint64_t size) { bank_infos[id].size = size; remap_cb(); } void pci_device::set_map_flags(int id, int flags) { bank_infos[id].flags = flags; remap_cb(); } agp_device::agp_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) : pci_device(mconfig, type, tag, owner, clock) { } void agp_device::device_start() { pci_device::device_start(); } void agp_device::device_reset() { pci_device::device_reset(); } pci_bridge_device::pci_bridge_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : pci_bridge_device(mconfig, PCI_BRIDGE, tag, owner, clock) { } pci_bridge_device::pci_bridge_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) : pci_device(mconfig, type, tag, owner, clock) , device_memory_interface(mconfig, *this) , configure_space_config("configuration_space", ENDIANNESS_LITTLE, 32, 20) { } READ8_MEMBER(pci_bridge_device::header_type_r) { return 0x01; } device_memory_interface::space_config_vector pci_bridge_device::memory_space_config() const { return space_config_vector { std::make_pair(AS_PCI_CONFIG, &configure_space_config) }; } device_t *pci_bridge_device::bus_root() { return this; } void pci_bridge_device::set_remap_cb(mapper_cb _remap_cb) { remap_cb = _remap_cb; for(unsigned int i=0; i != all_devices.size(); i++) if(all_devices[i] != this) all_devices[i]->set_remap_cb(_remap_cb); } void pci_bridge_device::device_start() { pci_device::device_start(); for(auto & elem : sub_devices) elem = nullptr; for (device_t &d : bus_root()->subdevices()) { const char *t = d.tag(); int l = strlen(t); if(l <= 4 || t[l-5] != ':' || t[l-2] != '.') continue; int id = strtol(t+l-4, nullptr, 16); int fct = t[l-1] - '0'; sub_devices[(id << 3) | fct] = downcast(&d); } mapper_cb cf_cb(&pci_bridge_device::regenerate_config_mapping, this); for(int i=0; i<32*8; i++) if(sub_devices[i]) { if((i & 7) && sub_devices[i & ~7]) sub_devices[i & ~7]->set_multifunction_device(true); all_devices.push_back(sub_devices[i]); if(sub_devices[i] != this) { sub_devices[i]->remap_config_cb = cf_cb; sub_devices[i]->set_remap_cb(remap_cb); pci_bridge_device *bridge = dynamic_cast(sub_devices[i]); if(bridge) all_bridges.push_back(bridge); } } } void pci_bridge_device::device_reset() { pci_device::device_reset(); bridge_control = 0x0000; primary_bus = 0x00; secondary_bus = 0x00; subordinate_bus = 0x00; regenerate_config_mapping(); } void pci_bridge_device::reset_all_mappings() { pci_device::reset_all_mappings(); for(unsigned int i=0; i != all_devices.size(); i++) if(all_devices[i] != this) all_devices[i]->reset_all_mappings(); prefetch_baseu = 0; prefetch_limitu = 0; memory_base = 0; memory_limit = 0; prefetch_base = 0; prefetch_limit = 0; iobaseu = 0; iolimitu = 0; iobase = 0; iolimit = 0; } void pci_bridge_device::map_device(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) { const int count = int(all_devices.size()) - 1; for(int i = count; i >= 0; i--) if (all_devices[i] != this) if (all_devices[i]->map_first()) all_devices[i]->map_device(memory_window_start, memory_window_end, memory_offset, memory_space, io_window_start, io_window_end, io_offset, io_space); for(int i = count; i>=0; i--) if(all_devices[i] != this) if (!all_devices[i]->map_first()) all_devices[i]->map_device(memory_window_start, memory_window_end, memory_offset, memory_space, io_window_start, io_window_end, io_offset, io_space); map_extra(memory_window_start, memory_window_end, memory_offset, memory_space, io_window_start, io_window_end, io_offset, io_space); } void pci_bridge_device::regenerate_config_mapping() { address_space *config_space = &space(AS_PCI_CONFIG); config_space->unmap_readwrite(0x00000, 0xfffff); for(int i=0; i<32*8; i++) if(sub_devices[i]) sub_devices[i]->map_config(i, config_space); } uint32_t pci_bridge_device::do_config_read(uint8_t bus, uint8_t device, uint16_t reg, uint32_t mem_mask) { if(sub_devices[device]) { uint32_t data = space(AS_PCI_CONFIG).read_dword((device << 12) | reg, mem_mask); logerror("config_read %02x:%02x.%x:%02x %08x @ %08x\n", bus, device >> 3, device & 7, reg, data, mem_mask); return data; } else return 0xffffffff; } uint32_t pci_bridge_device::propagate_config_read(uint8_t bus, uint8_t device, uint16_t reg, uint32_t mem_mask) { uint32_t data = 0xffffffff; for(unsigned int i=0; i != all_bridges.size(); i++) data &= all_bridges[i]->config_read(bus, device, reg, mem_mask); return data; } uint32_t pci_bridge_device::config_read(uint8_t bus, uint8_t device, uint16_t reg, uint32_t mem_mask) { if(bus == secondary_bus) return do_config_read(bus, device, reg, mem_mask); if(bus > secondary_bus && bus <= subordinate_bus) return propagate_config_read(bus, device, reg, mem_mask); return 0xffffffff; } void pci_bridge_device::do_config_write(uint8_t bus, uint8_t device, uint16_t reg, uint32_t data, uint32_t mem_mask) { if(sub_devices[device]) { space(AS_PCI_CONFIG).write_dword((device << 12) | reg, data, mem_mask); logerror("config_write %02x:%02x.%x:%02x %08x @ %08x\n", bus, device >> 3, device & 7, reg, data, mem_mask); } } void pci_bridge_device::propagate_config_write(uint8_t bus, uint8_t device, uint16_t reg, uint32_t data, uint32_t mem_mask) { for(unsigned int i=0; i != all_bridges.size(); i++) all_bridges[i]->config_write(bus, device, reg, data, mem_mask); } void pci_bridge_device::config_write(uint8_t bus, uint8_t device, uint16_t reg, uint32_t data, uint32_t mem_mask) { if(bus == secondary_bus) do_config_write(bus, device, reg, data, mem_mask); else if(bus > secondary_bus && bus <= subordinate_bus) propagate_config_write(bus, device, reg, data, mem_mask); } READ32_MEMBER (pci_bridge_device::b_address_base_r) { logerror("b_address_base_r %d\n", offset); return 0xffffffff; } WRITE32_MEMBER(pci_bridge_device::b_address_base_w) { logerror("b_address_base_w %d, %08x\n", offset, data); } READ8_MEMBER (pci_bridge_device::primary_bus_r) { logerror("primary_bus_r\n"); return primary_bus; } WRITE8_MEMBER (pci_bridge_device::primary_bus_w) { primary_bus = data; logerror("primary_bus_w %02x\n", data); } READ8_MEMBER (pci_bridge_device::secondary_bus_r) { logerror("secondary_bus_r\n"); return secondary_bus; } WRITE8_MEMBER (pci_bridge_device::secondary_bus_w) { secondary_bus = data; logerror("secondary_bus_w %02x\n", data); } READ8_MEMBER (pci_bridge_device::subordinate_bus_r) { logerror("subordinate_bus_r\n"); return subordinate_bus; } WRITE8_MEMBER (pci_bridge_device::subordinate_bus_w) { subordinate_bus = data; logerror("subordinate_bus_w %02x\n", data); } READ8_MEMBER (pci_bridge_device::secondary_latency_r) { logerror("secondary_latency_r\n"); return 0xff; } WRITE8_MEMBER (pci_bridge_device::secondary_latency_w) { logerror("secondary_latency_w %02x\n", data); } READ8_MEMBER (pci_bridge_device::iobase_r) { return iobase; } WRITE8_MEMBER (pci_bridge_device::iobase_w) { iobase = data; logerror("iobase_w %02x\n", data); } READ8_MEMBER (pci_bridge_device::iolimit_r) { return iolimit; } WRITE8_MEMBER (pci_bridge_device::iolimit_w) { iolimit = data; logerror("iolimit_w %02x\n", data); } READ16_MEMBER (pci_bridge_device::secondary_status_r) { logerror("secondary_status_r\n"); return 0xffff; } WRITE16_MEMBER(pci_bridge_device::secondary_status_w) { logerror("secondary_status_w %04x\n", data); } READ16_MEMBER (pci_bridge_device::memory_base_r) { return memory_base; } WRITE16_MEMBER(pci_bridge_device::memory_base_w) { COMBINE_DATA(&memory_base); logerror("memory_base_w %04x\n", memory_base); } READ16_MEMBER (pci_bridge_device::memory_limit_r) { return memory_limit; } WRITE16_MEMBER(pci_bridge_device::memory_limit_w) { COMBINE_DATA(&memory_limit); logerror("memory_limit_w %04x\n", memory_limit); } READ16_MEMBER (pci_bridge_device::prefetch_base_r) { return prefetch_base; } WRITE16_MEMBER(pci_bridge_device::prefetch_base_w) { COMBINE_DATA(&prefetch_base); logerror("prefetch_base_w %04x\n", prefetch_base); } READ16_MEMBER (pci_bridge_device::prefetch_limit_r) { return prefetch_limit; } WRITE16_MEMBER(pci_bridge_device::prefetch_limit_w) { COMBINE_DATA(&prefetch_limit); logerror("prefetch_limit_w %04x\n", prefetch_limit); } READ32_MEMBER (pci_bridge_device::prefetch_baseu_r) { return prefetch_baseu; } WRITE32_MEMBER(pci_bridge_device::prefetch_baseu_w) { COMBINE_DATA(&prefetch_baseu); logerror("prefetch_baseu_w %08x\n", prefetch_baseu); } READ32_MEMBER (pci_bridge_device::prefetch_limitu_r) { return prefetch_limitu; } WRITE32_MEMBER(pci_bridge_device::prefetch_limitu_w) { COMBINE_DATA(&prefetch_limitu); logerror("prefetch_limitu_w %08x\n", prefetch_limitu); } READ16_MEMBER (pci_bridge_device::iobaseu_r) { return iobaseu; } WRITE16_MEMBER(pci_bridge_device::iobaseu_w) { COMBINE_DATA(&iobaseu); logerror("iobaseu_w %04x\n", iobaseu); } READ16_MEMBER (pci_bridge_device::iolimitu_r) { return iolimitu; } WRITE16_MEMBER(pci_bridge_device::iolimitu_w) { COMBINE_DATA(&iolimitu); logerror("iolimitu_w %04x\n", iolimitu); } READ16_MEMBER (pci_bridge_device::bridge_control_r) { return bridge_control; } WRITE16_MEMBER(pci_bridge_device::bridge_control_w) { COMBINE_DATA(&bridge_control); logerror("bridge_control_w %04x\n", bridge_control); } agp_bridge_device::agp_bridge_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) : pci_bridge_device(mconfig, type, tag, owner, clock) { } void agp_bridge_device::device_start() { pci_bridge_device::device_start(); } void agp_bridge_device::device_reset() { pci_bridge_device::device_reset(); } void pci_host_device::io_configuration_access_map(address_map &map) { map(0xcf8, 0xcfb).rw(FUNC(pci_host_device::config_address_r), FUNC(pci_host_device::config_address_w)); map(0xcfc, 0xcff).rw(FUNC(pci_host_device::config_data_r), FUNC(pci_host_device::config_data_w)); } pci_host_device::pci_host_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) : pci_bridge_device(mconfig, type, tag, owner, clock) { } device_t *pci_host_device::bus_root() { return owner(); } void pci_host_device::device_start() { remap_cb = mapper_cb(&pci_host_device::regenerate_mapping, this); pci_bridge_device::device_start(); memory_window_start = memory_window_end = memory_offset = 0; io_window_start = io_window_end = io_offset = 0; reset_all_mappings(); save_item(NAME(config_address)); } void pci_host_device::device_reset() { pci_bridge_device::device_reset(); reset_all_mappings(); regenerate_mapping(); config_address = 0; } void pci_host_device::regenerate_mapping() { logerror("Regenerating mapping\n"); memory_space->unmap_readwrite(memory_window_start, memory_window_end); io_space->unmap_readwrite(io_window_start, io_window_end); map_device(memory_window_start, memory_window_end, memory_offset, memory_space, io_window_start, io_window_end, io_offset, io_space); } READ32_MEMBER(pci_host_device::config_address_r) { return config_address; } WRITE32_MEMBER(pci_host_device::config_address_w) { COMBINE_DATA(&config_address); } READ32_MEMBER(pci_host_device::config_data_r) { return config_address & 0x80000000 ? root_config_read((config_address >> 16) & 0xff, (config_address >> 8) & 0xff, config_address & 0xfc, mem_mask) : 0xffffffff; } WRITE32_MEMBER(pci_host_device::config_data_w) { if(config_address & 0x80000000) root_config_write((config_address >> 16) & 0xff, (config_address >> 8) & 0xff, config_address & 0xfc, data, mem_mask); } uint32_t pci_host_device::root_config_read(uint8_t bus, uint8_t device, uint16_t reg, uint32_t mem_mask) { if(bus == 0x00) return do_config_read(bus, device, reg, mem_mask); return propagate_config_read(bus, device, reg, mem_mask); } void pci_host_device::root_config_write(uint8_t bus, uint8_t device, uint16_t reg, uint32_t data, uint32_t mem_mask) { if(bus == 0x00) do_config_write(bus, device, reg, data, mem_mask); else propagate_config_write(bus, device, reg, data, mem_mask); } pci_root_device::pci_root_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, PCI_ROOT, tag, owner, clock) { } void pci_root_device::device_start() { } void pci_root_device::device_reset() { }