void pc9801_kbd_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
{
if(id == RX_TIMER)
{
int i;
/* special handling for caps lock / kana lock */
if((ioport("KEYE")->read() & (1 << 1)) != m_caps_lock_state)
{
m_caps_lock_state = ioport("KEYE")->read() & (1 << 1);
m_keyb_tx = 0x71;
m_irq_func(ASSERT_LINE);
return;
}
if((ioport("KEYE")->read() & (1 << 2)) != m_kana_lock_state)
{
m_kana_lock_state = ioport("KEYE")->read() & (1 << 2);
m_keyb_tx = 0x72;
m_irq_func(ASSERT_LINE);
return;
}
/* key up */
for(i=0;i<0x80;i++)
{
if(i==0x71 || i==0x72)
continue;
if(m_rx_buf[i] == 2)
{
m_keyb_tx = i | 0x80;
m_irq_func(ASSERT_LINE);
m_rx_buf[i] = 0;
return;
}
}
/* key down */
for(i=0;i<0x80;i++)
{
if(i==0x71 || i==0x72)
continue;
if(m_rx_buf[i] == 1)
{
m_keyb_tx = i;
m_irq_func(ASSERT_LINE);
m_rx_buf[i] = 0;
return;
}
}
}
}
inline void via6522_device::set_irq_line(int state)
{
if (m_irq != state)
{
m_irq_func(state);
m_irq = state;
}
}
void riot6532_device::update_irqstate()
{
int irq = (m_irqstate & m_irqenable) ? ASSERT_LINE : CLEAR_LINE;
if (m_irq != irq)
{
m_irq_func(irq);
m_irq = irq;
}
}
void via6522_device::set_int(int data)
{
m_ifr |= data;
if (TRACE_VIA)
{
logerror("%s:6522VIA chip %s: IFR = %02X\n", machine().describe_context(), tag(), m_ifr);
}
if (m_ier & m_ifr)
{
m_ifr |= INT_ANY;
m_irq_func(ASSERT_LINE);
}
}
void ncr5390_device::device_reset()
{
fifo_pos = 0;
memset(fifo, 0, sizeof(fifo));
clock_conv = 2;
sync_period = 5;
sync_offset = 0;
seq = 0;
config &= 7;
status &= 0x90;
istatus = 0;
irq = false;
if(!m_irq_func.isnull())
m_irq_func(irq);
reset_soft();
}
void via6522_device::clear_int(int data)
{
m_ifr = (m_ifr & ~data) & 0x7f;
if (TRACE_VIA)
{
logerror("%s:6522VIA chip %s: IFR = %02X\n", machine().describe_context(), tag(), m_ifr);
}
if (m_ifr & m_ier)
{
m_ifr |= INT_ANY;
}
else
{
m_irq_func(CLEAR_LINE);
}
}
