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i8251: Improved interface. (nw)

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This commit is contained in:
Curt Coder 2013-05-30 13:56:33 +00:00
parent 737ea59851
commit 537d2ee4cc
3 changed files with 7 additions and 28 deletions
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3
src/emu/machine/i8251.h
View File

@ -82,6 +82,9 @@ public:
void transmit_clock(); void transmit_clock();
void receive_clock(); void receive_clock();
DECLARE_WRITE_LINE_MEMBER( txc_w ) { if (state) transmit_clock(); }
DECLARE_WRITE_LINE_MEMBER( rxc_w ) { if (state) receive_clock(); }
void receive_character(UINT8 ch); void receive_character(UINT8 ch);
virtual void input_callback(UINT8 state); virtual void input_callback(UINT8 state);

16
src/mess/drivers/vk100.c
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@ -244,8 +244,6 @@ public:
DECLARE_WRITE_LINE_MEMBER(i8251_rts); DECLARE_WRITE_LINE_MEMBER(i8251_rts);
UINT8 vram_read(); UINT8 vram_read();
void vram_write(UINT8 data); void vram_write(UINT8 data);
DECLARE_WRITE_LINE_MEMBER( fr_w );
DECLARE_WRITE_LINE_MEMBER( ft_w );
protected: protected:
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr); virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
@ -1033,21 +1031,11 @@ static const rs232_port_interface rs232_intf =
DEVCB_NULL DEVCB_NULL
}; };
WRITE_LINE_MEMBER( vk100_state::fr_w )
{
m_uart->receive_clock();
}
WRITE_LINE_MEMBER( vk100_state::ft_w )
{
m_uart->transmit_clock();
}
static COM8116_INTERFACE( dbrg_intf ) static COM8116_INTERFACE( dbrg_intf )
{ {
DEVCB_NULL, DEVCB_NULL,
DEVCB_DRIVER_LINE_MEMBER(vk100_state, fr_w), DEVCB_DEVICE_LINE_MEMBER("i8251", i8251_device, rxc_w),
DEVCB_DRIVER_LINE_MEMBER(vk100_state, ft_w), DEVCB_DEVICE_LINE_MEMBER("i8251", i8251_device, txc_w),
COM8116_DIVISORS_16X_5_0688MHz, // receiver COM8116_DIVISORS_16X_5_0688MHz, // receiver
COM8116_DIVISORS_16X_5_0688MHz // transmitter COM8116_DIVISORS_16X_5_0688MHz // transmitter
}; };

16
src/mess/drivers/vt100.c
View File

@ -68,8 +68,6 @@ public:
TIMER_DEVICE_CALLBACK_MEMBER(keyboard_callback); TIMER_DEVICE_CALLBACK_MEMBER(keyboard_callback);
IRQ_CALLBACK_MEMBER(vt100_irq_callback); IRQ_CALLBACK_MEMBER(vt100_irq_callback);
UINT8 bit_sel(UINT8 data); UINT8 bit_sel(UINT8 data);
DECLARE_WRITE_LINE_MEMBER( fr_w );
DECLARE_WRITE_LINE_MEMBER( ft_w );
}; };
@ -431,21 +429,11 @@ static const rs232_port_interface rs232_intf =
DEVCB_NULL DEVCB_NULL
}; };
WRITE_LINE_MEMBER( vt100_state::fr_w )
{
m_uart->receive_clock();
}
WRITE_LINE_MEMBER( vt100_state::ft_w )
{
m_uart->transmit_clock();
}
static COM8116_INTERFACE( dbrg_intf ) static COM8116_INTERFACE( dbrg_intf )
{ {
DEVCB_NULL, DEVCB_NULL,
DEVCB_DRIVER_LINE_MEMBER(vt100_state, fr_w), DEVCB_DEVICE_LINE_MEMBER("i8251", i8251_device, rxc_w),
DEVCB_DRIVER_LINE_MEMBER(vt100_state, ft_w), DEVCB_DEVICE_LINE_MEMBER("i8251", i8251_device, txc_w),
COM8116_DIVISORS_16X_5_0688MHz, // receiver COM8116_DIVISORS_16X_5_0688MHz, // receiver
COM8116_DIVISORS_16X_5_0688MHz // transmitter COM8116_DIVISORS_16X_5_0688MHz // transmitter
}; };