// 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 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(); }; DECLARE_DEVICE_TYPE(NEXTKBD, nextkbd_device) #endif // MAME_MACHINE_NEXTKBD_H