// license:BSD-3-Clause // copyright-holders:smf /* * PlayStation Serial I/O emulator * * Copyright 2003-2011 smf * */ #pragma once #ifndef __PSXSIO_H__ #define __PSXSIO_H__ #include "emu.h" extern const device_type PSX_SIO0; extern const device_type PSX_SIO1; #define MCFG_PSX_SIO_IRQ_HANDLER(_devcb) \ devcb = &psxsio_device::set_irq_handler(*device, DEVCB_##_devcb); #define MCFG_PSX_SIO_SCK_HANDLER(_devcb) \ devcb = &psxsio_device::set_sck_handler(*device, DEVCB_##_devcb); #define MCFG_PSX_SIO_TXD_HANDLER(_devcb) \ devcb = &psxsio_device::set_txd_handler(*device, DEVCB_##_devcb); #define MCFG_PSX_SIO_DTR_HANDLER(_devcb) \ devcb = &psxsio_device::set_dtr_handler(*device, DEVCB_##_devcb); #define MCFG_PSX_SIO_RTS_HANDLER(_devcb) \ devcb = &psxsio_device::set_rts_handler(*device, DEVCB_##_devcb); #define SIO_BUF_SIZE ( 8 ) #define SIO_STATUS_TX_RDY ( 1 << 0 ) #define SIO_STATUS_RX_RDY ( 1 << 1 ) #define SIO_STATUS_TX_EMPTY ( 1 << 2 ) #define SIO_STATUS_OVERRUN ( 1 << 4 ) #define SIO_STATUS_DSR ( 1 << 7 ) #define SIO_STATUS_IRQ ( 1 << 9 ) #define SIO_CONTROL_TX_ENA ( 1 << 0 ) #define SIO_CONTROL_IACK ( 1 << 4 ) #define SIO_CONTROL_RESET ( 1 << 6 ) #define SIO_CONTROL_TX_IENA ( 1 << 10 ) #define SIO_CONTROL_RX_IENA ( 1 << 11 ) #define SIO_CONTROL_DSR_IENA ( 1 << 12 ) #define SIO_CONTROL_DTR ( 1 << 13 ) class psxsio_device : public device_t { public: psxsio_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source); // static configuration helpers template static devcb_base &set_irq_handler(device_t &device, _Object object) { return downcast(device).m_irq_handler.set_callback(object); } template static devcb_base &set_sck_handler(device_t &device, _Object object) { return downcast(device).m_sck_handler.set_callback(object); } template static devcb_base &set_txd_handler(device_t &device, _Object object) { return downcast(device).m_txd_handler.set_callback(object); } template static devcb_base &set_dtr_handler(device_t &device, _Object object) { return downcast(device).m_dtr_handler.set_callback(object); } template static devcb_base &set_rts_handler(device_t &device, _Object object) { return downcast(device).m_rts_handler.set_callback(object); } DECLARE_WRITE32_MEMBER( write ); DECLARE_READ32_MEMBER( read ); DECLARE_WRITE_LINE_MEMBER(write_rxd); DECLARE_WRITE_LINE_MEMBER(write_dsr); DECLARE_WRITE_LINE_MEMBER(write_cts); protected: // device-level overrides virtual void device_start(); virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr); virtual void device_post_load(); private: void sio_interrupt(); void sio_timer_adjust(); UINT32 m_status; UINT32 m_mode; UINT32 m_control; UINT32 m_baud; int m_rxd; UINT32 m_tx_data; UINT32 m_rx_data; UINT32 m_tx_shift; UINT32 m_rx_shift; UINT32 m_tx_bits; UINT32 m_rx_bits; emu_timer *m_timer; devcb_write_line m_irq_handler; devcb_write_line m_sck_handler; devcb_write_line m_txd_handler; devcb_write_line m_dtr_handler; devcb_write_line m_rts_handler; }; class psxsio0_device : public psxsio_device { public: psxsio0_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); }; class psxsio1_device : public psxsio_device { public: psxsio1_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); }; #endif