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// license:LGPL-2.1+
// copyright-holders:Angelo Salese
/***************************************************************************
Acorn Archimedes KART interface
***************************************************************************/
#ifndef MAME_MACHINE_AAKART_H
#define MAME_MACHINE_AAKART_H
#pragma once
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_AAKART_OUT_TX_CB(_devcb) \
downcast<aakart_device &>(*device).set_out_tx_callback(DEVCB_##_devcb);
#define MCFG_AAKART_OUT_RX_CB(_devcb) \
downcast<aakart_device &>(*device).set_out_rx_callback(DEVCB_##_devcb);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> aakart_device
class aakart_device : public device_t
{
public:
// construction/destruction
aakart_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
template <class Object> devcb_base &set_out_tx_callback(Object &&cb) { return m_out_tx_cb.set_callback(std::forward<Object>(cb)); }
template <class Object> devcb_base &set_out_rx_callback(Object &&cb) { return m_out_rx_cb.set_callback(std::forward<Object>(cb)); }
// I/O operations
DECLARE_WRITE8_MEMBER( write );
DECLARE_READ8_MEMBER( read );
void send_keycode_down(uint8_t row, uint8_t col);
void send_keycode_up(uint8_t row, uint8_t col);
void send_mouse(uint8_t x, uint8_t y);
protected:
// device-level overrides
virtual void device_validity_check(validity_checker &valid) const override;
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
private:
enum {
STATUS_NORMAL = 0,
STATUS_KEYUP,
STATUS_KEYDOWN,
STATUS_MOUSE,
STATUS_HRST,
STATUS_UNDEFINED
};
static const device_timer_id RX_TIMER = 1;
static const device_timer_id TX_TIMER = 2;
static const device_timer_id MOUSE_TIMER = 3;
static const device_timer_id KEYB_TIMER = 4;
emu_timer * m_rxtimer;
emu_timer * m_txtimer;
emu_timer * m_mousetimer;
emu_timer * m_keybtimer;
devcb_write_line m_out_tx_cb;
devcb_write_line m_out_rx_cb;
uint8_t m_tx_latch;
//uint8_t m_rx_latch;
uint8_t m_rx;
uint8_t m_new_command;
uint8_t m_status;
uint8_t m_mouse_enable;
uint8_t m_keyb_enable;
int m_queue_size;
uint16_t m_queue[0x10];
};
// device type definition
DECLARE_DEVICE_TYPE(AAKART, aakart_device)
#endif // MAME_MACHINE_AAKART_H
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