// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
#ifndef __NEXTKBD_H__
#define __NEXTKBD_H__
#include "emu.h"
#define MCFG_NEXTKBD_INT_CHANGE_CALLBACK(_write) \
devcb = &nextkbd_device::set_int_change_wr_callback(*device, DEVCB_##_write);
#define MCFG_NEXTKBD_INT_POWER_CALLBACK(_write) \
devcb = &nextkbd_device::set_int_power_wr_callback(*device, DEVCB_##_write);
#define MCFG_NEXTKBD_INT_NMI_CALLBACK(_write) \
devcb = &nextkbd_device::set_int_nmi_wr_callback(*device, DEVCB_##_write);
class nextkbd_device : public device_t {
public:
nextkbd_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
template<class _Object> static devcb_base &set_int_change_wr_callback(device_t &device, _Object object) { return downcast<nextkbd_device &>(device).int_change_cb.set_callback(object); }
template<class _Object> static devcb_base &set_int_power_wr_callback(device_t &device, _Object object) { return downcast<nextkbd_device &>(device).int_power_cb.set_callback(object); }
template<class _Object> static devcb_base &set_int_nmi_wr_callback(device_t &device, _Object object) { return downcast<nextkbd_device &>(device).int_nmi_cb.set_callback(object); }
DECLARE_ADDRESS_MAP(amap, 32);
DECLARE_READ8_MEMBER(status_snd_r);
DECLARE_READ8_MEMBER(status_kms_r);
DECLARE_READ8_MEMBER(status_dma_r);
DECLARE_READ8_MEMBER(status_cmd_r);
DECLARE_READ32_MEMBER(cdata_r);
DECLARE_READ32_MEMBER(kmdata_r);
DECLARE_WRITE8_MEMBER(ctrl_snd_w);
DECLARE_WRITE8_MEMBER(ctrl_kms_w);
DECLARE_WRITE8_MEMBER(ctrl_dma_w);
DECLARE_WRITE8_MEMBER(ctrl_cmd_w);
DECLARE_WRITE32_MEMBER(cdata_w);
DECLARE_WRITE32_MEMBER(kmdata_w);
DECLARE_INPUT_CHANGED_MEMBER(update);
protected:
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;
virtual ioport_constructor device_input_ports() const override;
private:
// Big thanks to the previous emulator for that information
enum {
C_SOUND_OUT_ENABLE = 0x80, // rw
C_SOUND_OUT_REQUEST = 0x40, // r
C_SOUND_OUT_UNDERRUN = 0x20, // rw
C_SOUND_IN_ENABLE = 0x08, // rw
C_SOUND_IN_REQUEST = 0x04, // r
C_SOUND_IN_OVERRUN = 0x02, // rw
C_SOUND_WMASK = 0xaa,
C_KBD_INTERRUPT = 0x80, // r
C_KBD_DATA = 0x40, // r
C_KBD_OVERRUN = 0x20, // rw
C_KBD_NMI = 0x10, // rw?
C_KMS_INTERRUPT = 0x08, // r
C_KMS_DATA = 0x04, // r
C_KMS_OVERRUN = 0x02, // rw
C_KMS_WMASK = 0x22,
C_SDMA_OUT_PENDING = 0x80, // r
C_SDMA_OUT_RUNNING = 0x40, // r
C_CDMA_PENDING = 0x20, // r
C_CDMA_RUNNING = 0x10, // r
C_KMS_ENABLE = 0x02, // rw
C_LOOPBACK = 0x01, // rw
C_WMASK = 0x03,
D_ERROR = 0x40000000,
D_USER = 0x20000000,
D_MASTER = 0x10000000,
D_SECONDARY = 0x01000000,
D_VERSION_OLD = 0x00000000,
D_VERSION_NEW = 0x00010000,
D_VERSION_DIGITAL = 0x00020000,
D_KBD_VALID = 0x00008000,
D_KBD_KEYDOWN = 0x00000080
};
enum { FIFO_SIZE = 32 };
devcb_write_line int_change_cb, int_power_cb, int_nmi_cb;
required_ioport mousex;
required_ioport mousey;
required_ioport mousebtn;
emu_timer *poll_timer;
bool nmi_active;
uint32_t cdata, kmdata, fifo_ir, fifo_iw, fifo_size;
uint32_t fifo[FIFO_SIZE];
uint32_t km_address;
uint32_t prev_mousex, prev_mousey, prev_mousebtn;
uint16_t modifiers_state;
uint8_t ctrl_snd, ctrl_kms, ctrl_dma, ctrl_cmd;
void fifo_push(uint32_t val);
uint32_t fifo_pop();
bool fifo_empty() const;
void update_mouse(bool force_update);
void send();
void handle_fifo_command();
void handle_kbd_command();
void handle_command();
};
extern const device_type NEXTKBD;
#endif