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machine/w83977tf.cpp: implement keyboard port PnPs

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This commit is contained in:
angelosa 2023-06-27 01:26:57 +02:00
parent 8cf237887b
commit 85ab3a436e
2 changed files with 42 additions and 3 deletions
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41
src/devices/machine/w83977tf.cpp
View File

@ -59,6 +59,8 @@ void w83977tf_device::device_reset()
m_index = 0;
m_hefras = 0;
m_lock_sequence = 2;
m_keyb_address[0] = 0x60;
m_keyb_address[1] = 0x64;
}
device_memory_interface::space_config_vector w83977tf_device::memory_space_config() const
@ -77,7 +79,7 @@ void w83977tf_device::device_add_mconfig(machine_config &config)
KBDC8042(config, m_kbdc);
m_kbdc->set_keyboard_type(kbdc8042_device::KBDC8042_PS2);
// m_kbdc->set_interrupt_type(kbdc8042_device::KBDC8042_DOUBLE);
m_kbdc->set_interrupt_type(kbdc8042_device::KBDC8042_DOUBLE);
m_kbdc->system_reset_callback().set(FUNC(w83977tf_device::kbdp20_gp20_reset_w));
m_kbdc->gate_a20_callback().set(FUNC(w83977tf_device::kbdp21_gp25_gatea20_w));
m_kbdc->input_buffer_full_callback().set(FUNC(w83977tf_device::irq_keyboard_w));
@ -94,8 +96,8 @@ void w83977tf_device::remap(int space_id, offs_t start, offs_t end)
if (m_activate[5] & 1)
{
m_isa->install_device(0x60, 0x60, read8sm_delegate(*m_kbdc, FUNC(kbdc8042_device::data_r)), write8sm_delegate(*m_kbdc, FUNC(kbdc8042_device::data_w)));
m_isa->install_device(0x64, 0x64, read8sm_delegate(*this, FUNC(w83977tf_device::keybc_status_r)), write8sm_delegate(*this, FUNC(w83977tf_device::keybc_command_w)));
m_isa->install_device(m_keyb_address[0], m_keyb_address[0], read8sm_delegate(*m_kbdc, FUNC(kbdc8042_device::data_r)), write8sm_delegate(*m_kbdc, FUNC(kbdc8042_device::data_w)));
m_isa->install_device(m_keyb_address[1], m_keyb_address[1], read8sm_delegate(*this, FUNC(w83977tf_device::keybc_status_r)), write8sm_delegate(*this, FUNC(w83977tf_device::keybc_command_w)));
}
if (m_activate[8] & 1)
@ -182,8 +184,17 @@ void w83977tf_device::config_map(address_map &map)
m_logical_view[4](0x30, 0xff).unmaprw();
// KBC
m_logical_view[5](0x30, 0x30).rw(FUNC(w83977tf_device::activate_r<5>), FUNC(w83977tf_device::activate_w<5>));
m_logical_view[5](0x60, 0x63).rw(FUNC(w83977tf_device::keyb_io_address_r), FUNC(w83977tf_device::keyb_io_address_w));
m_logical_view[5](0x70, 0x70).rw(FUNC(w83977tf_device::keyb_irq_r), FUNC(w83977tf_device::keyb_irq_w));
m_logical_view[5](0x72, 0x72).rw(FUNC(w83977tf_device::mouse_irq_r), FUNC(w83977tf_device::mouse_irq_w));
m_logical_view[5](0xf0, 0xf0).lw8(
NAME([this] (offs_t offset, u8 data) {
// xx-- ---- KBC clock rate (00 = 6 MHz, 01 = 8 MHz, 10 = 12 MHz, 11 16 MHz)
// ---- -x-- Enable port $92
// ---- --xx Enables HW A20/reset from port $92
LOG("keyboard_hwcontrol_w: %02x\n", data);
})
);
// <reserved>
m_logical_view[6](0x30, 0xff).unmaprw();
// GPIO1
@ -347,6 +358,30 @@ void w83977tf_device::keybc_command_w(offs_t offset, u8 data)
m_kbdc->data_w(4, data);
}
// $60-$61 selects data port, $62-$63 command port
u8 w83977tf_device::keyb_io_address_r(offs_t offset)
{
return m_keyb_address[(offset & 2) >> 1] >> ((offset & 1) ? 0 : 8) & 0xff;
}
void w83977tf_device::keyb_io_address_w(offs_t offset, u8 data)
{
const u8 which = (offset & 2) >> 1;
if (offset & 1)
{
m_keyb_address[which] &= 0xff00;
m_keyb_address[which] |= data;
LOG("keyb_io_address_w[1] %04x (%04x & 0x00ff)\n", which, m_keyb_address[which], data);
}
else
{
m_keyb_address[which] &= 0xff;
m_keyb_address[which] |= data << 8;
LOG("keyb_io_address_w[0] %04x (%04x & 0xff00)\n", which, m_keyb_address[which], data << 8);
}
remap(AS_IO, 0, 0x400);
}
/*
* Device #8 (RTC)
*/

4
src/devices/machine/w83977tf.h
View File

@ -81,6 +81,9 @@ private:
u8 keybc_status_r(offs_t offset);
void keybc_command_w(offs_t offset, u8 data);
u8 keyb_io_address_r(offs_t offset);
void keyb_io_address_w(offs_t offset, u8 data);
void kbdp21_gp25_gatea20_w(int state);
void kbdp20_gp20_reset_w(int state);
@ -99,6 +102,7 @@ private:
u8 m_keyb_irq_line = 0;
u8 m_mouse_irq_line = 0;
u8 m_rtc_irq_line = 0;
u16 m_keyb_address[2]{};
};
DECLARE_DEVICE_TYPE(W83977TF, w83977tf_device);