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Diffstat (limited to 'src/devices/bus/lpci/southbridge.cpp')
-rw-r--r--src/devices/bus/lpci/southbridge.cpp55
1 files changed, 33 insertions, 22 deletions
diff --git a/src/devices/bus/lpci/southbridge.cpp b/src/devices/bus/lpci/southbridge.cpp
index 01228cddc3b..c4ce2257ed1 100644
--- a/src/devices/bus/lpci/southbridge.cpp
+++ b/src/devices/bus/lpci/southbridge.cpp
@@ -90,7 +90,8 @@ void southbridge_device::device_add_mconfig(machine_config &config)
SPEAKER_SOUND(config, m_speaker).add_route(ALL_OUTPUTS, "mono", 0.50);
ISA16(config, m_isabus, 0);
- m_isabus->set_cputag(":maincpu");
+ m_isabus->set_memspace(":maincpu", AS_PROGRAM);
+ m_isabus->set_iospace(":maincpu", AS_IO);
m_isabus->irq3_callback().set("pic8259_master", FUNC(pic8259_device::ir3_w));
m_isabus->irq4_callback().set("pic8259_master", FUNC(pic8259_device::ir4_w));
m_isabus->irq5_callback().set("pic8259_master", FUNC(pic8259_device::ir5_w));
@@ -109,6 +110,7 @@ void southbridge_device::device_add_mconfig(machine_config &config)
m_isabus->drq5_callback().set("dma8237_2", FUNC(am9517a_device::dreq1_w));
m_isabus->drq6_callback().set("dma8237_2", FUNC(am9517a_device::dreq2_w));
m_isabus->drq7_callback().set("dma8237_2", FUNC(am9517a_device::dreq3_w));
+ m_isabus->iochck_callback().set(FUNC(southbridge_device::iochck_w));
}
southbridge_device::southbridge_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) :
@@ -215,9 +217,9 @@ WRITE8_MEMBER(southbridge_device::eisa_irq_write)
void southbridge_device::device_start()
{
- spaceio = &machine().device(":maincpu")->memory().space(AS_IO);
+ spaceio = &m_maincpu->space(AS_IO);
- spaceio->install_readwrite_handler(0x0000, 0x001f, read8_delegate(FUNC(am9517a_device::read), &(*m_dma8237_1)), write8_delegate(FUNC(am9517a_device::write), &(*m_dma8237_1)), 0xffffffff);
+ spaceio->install_readwrite_handler(0x0000, 0x001f, read8sm_delegate(FUNC(am9517a_device::read), &(*m_dma8237_1)), write8sm_delegate(FUNC(am9517a_device::write), &(*m_dma8237_1)), 0xffffffff);
spaceio->install_readwrite_handler(0x0020, 0x003f, read8sm_delegate(FUNC(pic8259_device::read), &(*m_pic8259_master)), write8sm_delegate(FUNC(pic8259_device::write), &(*m_pic8259_master)), 0xffffffff);
spaceio->install_readwrite_handler(0x0040, 0x005f, read8sm_delegate(FUNC(pit8254_device::read), &(*m_pit8254)), write8sm_delegate(FUNC(pit8254_device::write), &(*m_pit8254)), 0xffffffff);
spaceio->install_readwrite_handler(0x0060, 0x0063, read8_delegate(FUNC(southbridge_device::at_portb_r), this), write8_delegate(FUNC(southbridge_device::at_portb_w), this), 0x0000ff00);
@@ -479,17 +481,24 @@ WRITE8_MEMBER( southbridge_device::at_portb_w )
m_pit8254->write_gate2(BIT(data, 0));
at_speaker_set_spkrdata( BIT(data, 1));
m_channel_check = BIT(data, 3);
- m_isabus->set_nmi_state((m_nmi_enabled==0) && (m_channel_check==0));
+ if (m_channel_check)
+ m_maincpu->set_input_line(INPUT_LINE_NMI, CLEAR_LINE);
+}
+
+WRITE_LINE_MEMBER( southbridge_device::iochck_w )
+{
+ if (!state && !m_channel_check && m_nmi_enabled)
+ m_maincpu->set_input_line(INPUT_LINE_NMI, ASSERT_LINE);
}
READ8_MEMBER( southbridge_device::at_dma8237_2_r )
{
- return m_dma8237_2->read( space, offset / 2);
+ return m_dma8237_2->read(offset / 2);
}
WRITE8_MEMBER( southbridge_device::at_dma8237_2_w )
{
- m_dma8237_2->write( space, offset / 2, data);
+ m_dma8237_2->write(offset / 2, data);
}
/***************************************************************************
@@ -507,7 +516,8 @@ static void pc_isa_onboard(device_slot_interface &device)
// device_add_mconfig - add device configuration
//-------------------------------------------------
-MACHINE_CONFIG_START(southbridge_extended_device::device_add_mconfig)
+void southbridge_extended_device::device_add_mconfig(machine_config &config)
+{
southbridge_device::device_add_mconfig(config);
at_keyboard_controller_device &keybc(AT_KEYBOARD_CONTROLLER(config, "keybc", XTAL(12'000'000)));
@@ -517,20 +527,20 @@ MACHINE_CONFIG_START(southbridge_extended_device::device_add_mconfig)
keybc.kbd_clk().set("pc_kbdc", FUNC(pc_kbdc_device::clock_write_from_mb));
keybc.kbd_data().set("pc_kbdc", FUNC(pc_kbdc_device::data_write_from_mb));
- MCFG_DEVICE_ADD("pc_kbdc", PC_KBDC, 0)
- MCFG_PC_KBDC_OUT_CLOCK_CB(WRITELINE("keybc", at_keyboard_controller_device, kbd_clk_w))
- MCFG_PC_KBDC_OUT_DATA_CB(WRITELINE("keybc", at_keyboard_controller_device, kbd_data_w))
- MCFG_PC_KBDC_SLOT_ADD("pc_kbdc", "kbd", pc_at_keyboards, STR_KBD_MICROSOFT_NATURAL)
+ PC_KBDC(config, m_pc_kbdc, 0);
+ m_pc_kbdc->out_clock_cb().set(m_keybc, FUNC(at_keyboard_controller_device::kbd_clk_w));
+ m_pc_kbdc->out_data_cb().set(m_keybc, FUNC(at_keyboard_controller_device::kbd_data_w));
+ PC_KBDC_SLOT(config, "kbd", pc_at_keyboards, STR_KBD_MICROSOFT_NATURAL).set_pc_kbdc_slot(m_pc_kbdc);
ds12885_device &rtc(DS12885(config, "rtc"));
rtc.irq().set("pic8259_slave", FUNC(pic8259_device::ir0_w));
rtc.set_century_index(0x32);
// on board devices
- MCFG_DEVICE_ADD("board1", ISA16_SLOT, 0, "isabus", pc_isa_onboard, "fdcsmc", true) // FIXME: determine ISA bus clock
- MCFG_DEVICE_ADD("board2", ISA16_SLOT, 0, "isabus", pc_isa_onboard, "comat", true)
- MCFG_DEVICE_ADD("board3", ISA16_SLOT, 0, "isabus", pc_isa_onboard, "lpt", true)
-MACHINE_CONFIG_END
+ ISA16_SLOT(config, "board1", 0, "isabus", pc_isa_onboard, "fdcsmc", true); // FIXME: determine ISA bus clock
+ ISA16_SLOT(config, "board2", 0, "isabus", pc_isa_onboard, "comat", true);
+ ISA16_SLOT(config, "board3", 0, "isabus", pc_isa_onboard, "lpt", true);
+}
southbridge_extended_device::southbridge_extended_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock)
: southbridge_device(mconfig, type, tag, owner, clock),
@@ -546,13 +556,13 @@ southbridge_extended_device::southbridge_extended_device(const machine_config &m
void southbridge_extended_device::device_start()
{
- address_space& spaceio = machine().device(":maincpu")->memory().space(AS_IO);
+ address_space& spaceio = m_maincpu->space(AS_IO);
southbridge_device::device_start();
- spaceio.install_readwrite_handler(0x0060, 0x0063, read8_delegate(FUNC(at_keyboard_controller_device::data_r), &(*m_keybc)), write8_delegate(FUNC(at_keyboard_controller_device::data_w), &(*m_keybc)), 0x000000ff);
- spaceio.install_readwrite_handler(0x0064, 0x0067, read8_delegate(FUNC(at_keyboard_controller_device::status_r), &(*m_keybc)), write8_delegate(FUNC(at_keyboard_controller_device::command_w), &(*m_keybc)), 0xffffffff);
- spaceio.install_readwrite_handler(0x0070, 0x007f, read8_delegate(FUNC(ds12885_device::read), &(*m_ds12885)), write8_delegate(FUNC(ds12885_device::write), &(*m_ds12885)), 0xffffffff);
+ spaceio.install_readwrite_handler(0x0060, 0x0063, read8smo_delegate(FUNC(at_keyboard_controller_device::data_r), &(*m_keybc)), write8smo_delegate(FUNC(at_keyboard_controller_device::data_w), &(*m_keybc)), 0x000000ff);
+ spaceio.install_readwrite_handler(0x0064, 0x0067, read8smo_delegate(FUNC(at_keyboard_controller_device::status_r), &(*m_keybc)), write8smo_delegate(FUNC(at_keyboard_controller_device::command_w), &(*m_keybc)), 0xffffffff);
+ spaceio.install_readwrite_handler(0x0070, 0x007f, read8sm_delegate(FUNC(ds12885_device::read), &(*m_ds12885)), write8sm_delegate(FUNC(ds12885_device::write), &(*m_ds12885)), 0xffffffff);
}
//-------------------------------------------------
@@ -568,10 +578,11 @@ WRITE8_MEMBER( southbridge_extended_device::write_rtc )
{
if (offset==0) {
m_nmi_enabled = BIT(data,7);
- m_isabus->set_nmi_state((m_nmi_enabled==0) && (m_channel_check==0));
- m_ds12885->write(space,0,data);
+ if (!m_nmi_enabled)
+ m_maincpu->set_input_line(INPUT_LINE_NMI, CLEAR_LINE);
+ m_ds12885->write(0,data);
}
else {
- m_ds12885->write(space,offset,data);
+ m_ds12885->write(offset,data);
}
}