// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
#include "pci.h"
const device_type PCI_ROOT = &device_creator<pci_root_device>;
const device_type PCI_BRIDGE = &device_creator<pci_bridge_device>;
DEVICE_ADDRESS_MAP_START(config_map, 32, pci_device)
AM_RANGE(0x00, 0x03) AM_READ16 (vendor_r, 0x0000ffff)
AM_RANGE(0x00, 0x03) AM_READ16 (device_r, 0xffff0000)
AM_RANGE(0x04, 0x07) AM_READWRITE16(command_r, command_w, 0x0000ffff)
AM_RANGE(0x04, 0x07) AM_READ16 (status_r, 0xffff0000)
AM_RANGE(0x08, 0x0b) AM_READ (class_rev_r)
AM_RANGE(0x0c, 0x0f) AM_READ8 (cache_line_size_r, 0x000000ff)
AM_RANGE(0x0c, 0x0f) AM_READ8 (latency_timer_r, 0x0000ff00)
AM_RANGE(0x0c, 0x0f) AM_READ8 (header_type_r, 0x00ff0000)
AM_RANGE(0x0c, 0x0f) AM_READ8 (bist_r, 0xff000000)
AM_RANGE(0x0c, 0x0f) AM_WRITENOP
AM_RANGE(0x10, 0x27) AM_READWRITE (address_base_r, address_base_w)
// Cardbus CIS pointer at 28
AM_RANGE(0x2c, 0x2f) AM_READ16 (subvendor_r, 0x0000ffff)
AM_RANGE(0x2c, 0x2f) AM_READ16 (subsystem_r, 0xffff0000)
AM_RANGE(0x2c, 0x2f) AM_WRITENOP
AM_RANGE(0x30, 0x33) AM_READWRITE (expansion_base_r, expansion_base_w)
AM_RANGE(0x34, 0x37) AM_READ8 (capptr_r, 0x000000ff)
ADDRESS_MAP_END
DEVICE_ADDRESS_MAP_START(config_map, 32, pci_bridge_device)
AM_RANGE(0x00, 0x03) AM_READ16 (vendor_r, 0x0000ffff)
AM_RANGE(0x00, 0x03) AM_READ16 (device_r, 0xffff0000)
AM_RANGE(0x04, 0x07) AM_READWRITE16(command_r, command_w, 0x0000ffff)
AM_RANGE(0x04, 0x07) AM_READ16 (status_r, 0xffff0000)
AM_RANGE(0x08, 0x0b) AM_READ (class_rev_r)
AM_RANGE(0x0c, 0x0f) AM_READ8 (cache_line_size_r, 0x000000ff)
AM_RANGE(0x0c, 0x0f) AM_READ8 (latency_timer_r, 0x0000ff00)
AM_RANGE(0x0c, 0x0f) AM_READ8 (header_type_r, 0x00ff0000)
AM_RANGE(0x0c, 0x0f) AM_READ8 (bist_r, 0xff000000)
AM_RANGE(0x10, 0x17) AM_READWRITE (b_address_base_r, b_address_base_w)
AM_RANGE(0x18, 0x1b) AM_READWRITE8 (primary_bus_r, primary_bus_w, 0x000000ff)
AM_RANGE(0x18, 0x1b) AM_READWRITE8 (secondary_bus_r, secondary_bus_w, 0x0000ff00)
AM_RANGE(0x18, 0x1b) AM_READWRITE8 (subordinate_bus_r, subordinate_bus_w, 0x00ff0000)
AM_RANGE(0x18, 0x1b) AM_READWRITE8 (secondary_latency_r, secondary_latency_w, 0xff000000)
AM_RANGE(0x1c, 0x1f) AM_READWRITE8 (iobase_r, iobase_w, 0x000000ff)
AM_RANGE(0x1c, 0x1f) AM_READWRITE8 (iolimit_r, iolimit_w, 0x0000ff00)
AM_RANGE(0x1c, 0x1f) AM_READWRITE16(secondary_status_r, secondary_status_w, 0xffff0000)
AM_RANGE(0x20, 0x23) AM_READWRITE16(memory_base_r, memory_base_w, 0x0000ffff)
AM_RANGE(0x20, 0x23) AM_READWRITE16(memory_limit_r, memory_limit_w, 0xffff0000)
AM_RANGE(0x24, 0x27) AM_READWRITE16(prefetch_base_r, prefetch_base_w, 0x0000ffff)
AM_RANGE(0x24, 0x27) AM_READWRITE16(prefetch_limit_r, prefetch_limit_w, 0xffff0000)
AM_RANGE(0x28, 0x2b) AM_READWRITE (prefetch_baseu_r, prefetch_baseu_w)
AM_RANGE(0x2c, 0x2f) AM_READWRITE (prefetch_limitu_r, prefetch_limitu_w)
AM_RANGE(0x30, 0x33) AM_READWRITE16(iobaseu_r, iobaseu_w, 0x0000ffff)
AM_RANGE(0x30, 0x33) AM_READWRITE16(iolimitu_r, iolimitu_w, 0xffff0000)
AM_RANGE(0x34, 0x37) AM_READ8 (capptr_r, 0x000000ff)
AM_RANGE(0x38, 0x3b) AM_READWRITE (expansion_base_r, expansion_base_w)
AM_RANGE(0x3c, 0x3f) AM_READWRITE8 (interrupt_line_r, interrupt_line_w, 0x000000ff)
AM_RANGE(0x3c, 0x3f) AM_READWRITE8 (interrupt_pin_r, interrupt_pin_w, 0x0000ff00)
AM_RANGE(0x3c, 0x3f) AM_READWRITE16(bridge_control_r, bridge_control_w, 0xffff0000)
ADDRESS_MAP_END
pci_device::pci_device(const machine_config &mconfig, device_type type, std::string name, std::string tag, device_t *owner, UINT32 clock, std::string shortname, std::string source)
: device_t(mconfig, type, name, tag, owner, clock, shortname, source)
{
main_id = 0xffffffff;
revision = 0x00;
pclass = 0xffffff;
subsystem_id = 0xffffffff;
is_multifunction_device = false;
}
void pci_device::set_ids(UINT32 _main_id, UINT8 _revision, UINT32 _pclass, UINT32 _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;
}
void pci_device::device_reset()
{
}
UINT32 pci_device::unmapped_r(offs_t offset, UINT32 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 data, UINT32 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("%s: write to address base (%d, %08x) not linked to any bank\n", tag().c_str(), 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(data) << 32);
else {
bank_infos[bid].adr = (bank_infos[bid].adr & U64(0xffffffff00000000)) | 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)
{
mem_mask &= command_mask;
COMBINE_DATA(&command);
logerror("%s: command = %04x\n", tag().c_str(), command);
}
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;
}
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 memory_window_start, UINT64 memory_window_end, UINT64 memory_offset, address_space *memory_space,
UINT64 io_window_start, UINT64 io_window_end, UINT64 io_offset, address_space *io_space)
{
for(int i=0; i<bank_count; i++) {
bank_info &bi = bank_infos[i];
if(UINT32(bi.adr) == 0xffffffff)
continue;
if(!bi.size || (bi.flags & M_DISABLED))
continue;
address_space *space;
UINT64 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 end = start + bi.size-1;
switch(i) {
case 0: space->install_readwrite_handler(start, end, 0, 0, read32_delegate(FUNC(pci_device::unmapped0_r), this), write32_delegate(FUNC(pci_device::unmapped0_w), this)); break;
case 1: space->install_readwrite_handler(start, end, 0, 0, read32_delegate(FUNC(pci_device::unmapped1_r), this), write32_delegate(FUNC(pci_device::unmapped1_w), this)); break;
case 2: space->install_readwrite_handler(start, end, 0, 0, read32_delegate(FUNC(pci_device::unmapped2_r), this), write32_delegate(FUNC(pci_device::unmapped2_w), this)); break;
case 3: space->install_readwrite_handler(start, end, 0, 0, read32_delegate(FUNC(pci_device::unmapped3_r), this), write32_delegate(FUNC(pci_device::unmapped3_w), this)); break;
case 4: space->install_readwrite_handler(start, end, 0, 0, read32_delegate(FUNC(pci_device::unmapped4_r), this), write32_delegate(FUNC(pci_device::unmapped4_w), this)); break;
case 5: space->install_readwrite_handler(start, end, 0, 0, read32_delegate(FUNC(pci_device::unmapped5_r), this), write32_delegate(FUNC(pci_device::unmapped5_w), this)); break;
}
space->install_device_delegate(start, end, *this, bi.map);
logerror("%s: map %s at %0*x-%0*x\n", tag().c_str(), bi.map.name(), bi.flags & M_IO ? 4 : 8, UINT32(start), bi.flags & M_IO ? 4 : 8, UINT32(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("%s: map expansion rom at %08x-%08x\n", tag().c_str(), expansion_rom_base & ~1, (expansion_rom_base & ~1) + expansion_rom_size - 1);
UINT32 start = (expansion_rom_base & ~1) + memory_offset;
UINT32 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 memory_window_start, UINT64 memory_window_end, UINT64 memory_offset, address_space *memory_space,
UINT64 io_window_start, UINT64 io_window_end, UINT64 io_offset, address_space *io_space)
{
}
void pci_device::map_config(UINT8 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 size, int flags, address_map_delegate &map)
{
assert(bank_count < 6);
int bid = bank_count++;
bank_infos[bid].map = map;
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%" I64FMT "x bytes of %s named %s\n", tag().c_str(), name().c_str(), size, flags & M_IO ? "io" : "memory", bank_infos[bid].map.name());
}
void pci_device::add_rom(const UINT8 *rom, UINT32 size)
{
expansion_rom = rom;
expansion_rom_size = size;
logerror("Device %s (%s) has 0x%x bytes of expansion rom\n", tag().c_str(), name().c_str(), 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 adr)
{
bank_infos[id].adr = adr;
remap_cb();
}
void pci_device::set_map_size(int id, UINT64 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, std::string name, std::string tag, device_t *owner, UINT32 clock, std::string shortname, std::string source)
: pci_device(mconfig, type, name, tag, owner, clock, shortname, source)
{
}
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, std::string tag, device_t *owner, UINT32 clock)
: pci_device(mconfig, PCI_BRIDGE, "PCI-PCI Bridge", tag, owner, clock, "pci_bridge", __FILE__),
device_memory_interface(mconfig, *this),
configure_space_config("configuration_space", ENDIANNESS_LITTLE, 32, 20)
{
}
pci_bridge_device::pci_bridge_device(const machine_config &mconfig, device_type type, std::string name, std::string tag, device_t *owner, UINT32 clock, std::string shortname, std::string source)
: pci_device(mconfig, type, name, tag, owner, clock, shortname, source),
device_memory_interface(mconfig, *this),
configure_space_config("configuration_space", ENDIANNESS_LITTLE, 32, 20)
{
}
READ8_MEMBER(pci_bridge_device::header_type_r)
{
return 0x01;
}
const address_space_config *pci_bridge_device::memory_space_config(address_spacenum spacenum) const
{
return spacenum == AS_PROGRAM ? &configure_space_config : nullptr;
}
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()->first_subdevice(); d != nullptr; d = d->next()) {
const char *t = d->tag().c_str();
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<pci_device *>(d);
}
mapper_cb cf_cb(FUNC(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<pci_bridge_device *>(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 memory_window_start, UINT64 memory_window_end, UINT64 memory_offset, address_space *memory_space,
UINT64 io_window_start, UINT64 io_window_end, UINT64 io_offset, address_space *io_space)
{
for(int i = int(all_devices.size())-1; i>=0; i--)
if(all_devices[i] != this)
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_PROGRAM);
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 pci_bridge_device::do_config_read(UINT8 bus, UINT8 device, UINT16 reg, UINT32 mem_mask)
{
if(sub_devices[device]) {
UINT32 data = space(AS_PROGRAM).read_dword((device << 12) | reg, mem_mask);
logerror("%s: config_read %02x:%02x.%x:%02x %08x @ %08x\n", tag().c_str(), bus, device >> 3, device & 7, reg, data, mem_mask);
return data;
} else
return 0xffffffff;
}
UINT32 pci_bridge_device::propagate_config_read(UINT8 bus, UINT8 device, UINT16 reg, UINT32 mem_mask)
{
UINT32 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 pci_bridge_device::config_read(UINT8 bus, UINT8 device, UINT16 reg, UINT32 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 bus, UINT8 device, UINT16 reg, UINT32 data, UINT32 mem_mask)
{
if(sub_devices[device]) {
space(AS_PROGRAM).write_dword((device << 12) | reg, data, mem_mask);
logerror("%s: config_write %02x:%02x.%x:%02x %08x @ %08x\n", tag().c_str(), bus, device >> 3, device & 7, reg, data, mem_mask);
}
}
void pci_bridge_device::propagate_config_write(UINT8 bus, UINT8 device, UINT16 reg, UINT32 data, UINT32 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 bus, UINT8 device, UINT16 reg, UINT32 data, UINT32 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("%s: b_address_base_r %d\n", tag().c_str(), offset);
return 0xffffffff;
}
WRITE32_MEMBER(pci_bridge_device::b_address_base_w)
{
logerror("%s: b_address_base_w %d, %08x\n", tag().c_str(), offset, data);
}
READ8_MEMBER (pci_bridge_device::primary_bus_r)
{
logerror("%s: primary_bus_r\n", tag().c_str());
return primary_bus;
}
WRITE8_MEMBER (pci_bridge_device::primary_bus_w)
{
primary_bus = data;
logerror("%s: primary_bus_w %02x\n", tag().c_str(), data);
}
READ8_MEMBER (pci_bridge_device::secondary_bus_r)
{
logerror("%s: secondary_bus_r\n", tag().c_str());
return secondary_bus;
}
WRITE8_MEMBER (pci_bridge_device::secondary_bus_w)
{
secondary_bus = data;
logerror("%s: secondary_bus_w %02x\n", tag().c_str(), data);
}
READ8_MEMBER (pci_bridge_device::subordinate_bus_r)
{
logerror("%s: subordinate_bus_r\n", tag().c_str());
return subordinate_bus;
}
WRITE8_MEMBER (pci_bridge_device::subordinate_bus_w)
{
subordinate_bus = data;
logerror("%s: subordinate_bus_w %02x\n", tag().c_str(), data);
}
READ8_MEMBER (pci_bridge_device::secondary_latency_r)
{
logerror("%s: secondary_latency_r\n", tag().c_str());
return 0xff;
}
WRITE8_MEMBER (pci_bridge_device::secondary_latency_w)
{
logerror("%s: secondary_latency_w %02x\n", tag().c_str(), data);
}
READ8_MEMBER (pci_bridge_device::iobase_r)
{
return iobase;
}
WRITE8_MEMBER (pci_bridge_device::iobase_w)
{
iobase = data;
logerror("%s: iobase_w %02x\n", tag().c_str(), data);
}
READ8_MEMBER (pci_bridge_device::iolimit_r)
{
return iolimit;
}
WRITE8_MEMBER (pci_bridge_device::iolimit_w)
{
iolimit = data;
logerror("%s: iolimit_w %02x\n", tag().c_str(), data);
}
READ16_MEMBER (pci_bridge_device::secondary_status_r)
{
logerror("%s: secondary_status_r\n", tag().c_str());
return 0xffff;
}
WRITE16_MEMBER(pci_bridge_device::secondary_status_w)
{
logerror("%s: secondary_status_w %04x\n", tag().c_str(), 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("%s: memory_base_w %04x\n", tag().c_str(), 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("%s: memory_limit_w %04x\n", tag().c_str(), 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("%s: prefetch_base_w %04x\n", tag().c_str(), 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("%s: prefetch_limit_w %04x\n", tag().c_str(), 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("%s: prefetch_baseu_w %08x\n", tag().c_str(), 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("%s: prefetch_limitu_w %08x\n", tag().c_str(), prefetch_limitu);
}
READ16_MEMBER (pci_bridge_device::iobaseu_r)
{
return iobaseu;
}
WRITE16_MEMBER(pci_bridge_device::iobaseu_w)
{
COMBINE_DATA(&iobaseu);
logerror("%s: iobaseu_w %04x\n", tag().c_str(), iobaseu);
}
READ16_MEMBER (pci_bridge_device::iolimitu_r)
{
return iolimitu;
}
WRITE16_MEMBER(pci_bridge_device::iolimitu_w)
{
COMBINE_DATA(&iolimitu);
logerror("%s: iolimitu_w %04x\n", tag().c_str(), iolimitu);
}
READ8_MEMBER (pci_bridge_device::interrupt_line_r)
{
logerror("%s: interrupt_line_r\n", tag().c_str());
return 0xff;
}
WRITE8_MEMBER (pci_bridge_device::interrupt_line_w)
{
logerror("%s: interrupt_line_w %02x\n", tag().c_str(), data);
}
READ8_MEMBER (pci_bridge_device::interrupt_pin_r)
{
logerror("%s: interrupt_pin_r\n", tag().c_str());
return 0xff;
}
WRITE8_MEMBER (pci_bridge_device::interrupt_pin_w)
{
logerror("%s: interrupt_pin_w %02x\n", tag().c_str(), data);
}
READ16_MEMBER (pci_bridge_device::bridge_control_r)
{
return bridge_control;
}
WRITE16_MEMBER(pci_bridge_device::bridge_control_w)
{
COMBINE_DATA(&bridge_control);
logerror("%s: bridge_control_w %04x\n", tag().c_str(), bridge_control);
}
agp_bridge_device::agp_bridge_device(const machine_config &mconfig, device_type type, std::string name, std::string tag, device_t *owner, UINT32 clock, std::string shortname, std::string source)
: pci_bridge_device(mconfig, type, name, tag, owner, clock, shortname, source)
{
}
void agp_bridge_device::device_start()
{
pci_bridge_device::device_start();
}
void agp_bridge_device::device_reset()
{
pci_bridge_device::device_reset();
}
DEVICE_ADDRESS_MAP_START(io_configuration_access_map, 32, pci_host_device)
AM_RANGE(0xcf8, 0xcfb) AM_READWRITE(config_address_r, config_address_w)
AM_RANGE(0xcfc, 0xcff) AM_READWRITE(config_data_r, config_data_w)
ADDRESS_MAP_END
pci_host_device::pci_host_device(const machine_config &mconfig, device_type type, std::string name, std::string tag, device_t *owner, UINT32 clock, std::string shortname, std::string source)
: pci_bridge_device(mconfig, type, name, tag, owner, clock, shortname, source)
{
}
device_t *pci_host_device::bus_root()
{
return owner();
}
void pci_host_device::device_start()
{
remap_cb = mapper_cb(FUNC(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();
}
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 pci_host_device::root_config_read(UINT8 bus, UINT8 device, UINT16 reg, UINT32 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 bus, UINT8 device, UINT16 reg, UINT32 data, UINT32 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, std::string tag, device_t *owner, UINT32 clock)
: device_t(mconfig, PCI_ROOT,"PCI virtual root", tag, owner, clock, "pci_root", __FILE__)
{
}
void pci_root_device::device_start()
{
}
void pci_root_device::device_reset()
{
}