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// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
#ifndef MAME_MACHINE_NEXTKBD_H
#define MAME_MACHINE_NEXTKBD_H
#pragma once
class nextkbd_device : public device_t {
public:
nextkbd_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
auto int_change_wr_callback() { return int_change_cb.bind(); }
auto int_power_wr_callback() { return int_power_cb.bind(); }
auto int_nmi_wr_callback() { return int_nmi_cb.bind(); }
void amap(address_map &map);
uint8_t status_snd_r();
uint8_t status_kms_r();
uint8_t status_dma_r();
uint8_t status_cmd_r();
uint32_t cdata_r(offs_t offset, uint32_t mem_mask = ~0);
uint32_t kmdata_r(offs_t offset, uint32_t mem_mask = ~0);
void ctrl_snd_w(uint8_t data);
void ctrl_kms_w(uint8_t data);
void ctrl_dma_w(uint8_t data);
void ctrl_cmd_w(uint8_t data);
void cdata_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
void kmdata_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
DECLARE_INPUT_CHANGED_MEMBER(update);
protected:
virtual void device_start() override;
virtual void device_reset() override;
virtual ioport_constructor device_input_ports() const override;
TIMER_CALLBACK_MEMBER(update_tick);
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();
};
DECLARE_DEVICE_TYPE(NEXTKBD, nextkbd_device)
#endif // MAME_MACHINE_NEXTKBD_H
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