// license:BSD-3-Clause // copyright-holders:Couriersud #ifndef MAME_SOUND_AY8910_H #define MAME_SOUND_AY8910_H #pragma once #define ALL_8910_CHANNELS -1 /* Internal resistance at Volume level 7. */ #define AY8910_INTERNAL_RESISTANCE (356) #define YM2149_INTERNAL_RESISTANCE (353) /* * The following is used by all drivers not reviewed yet. * This will like the old behavior, output between * 0 and 7FFF */ #define AY8910_LEGACY_OUTPUT (0x01) /* * Specifying the next define will simulate the special * cross channel mixing if outputs are tied together. * The driver will only provide one stream in this case. */ #define AY8910_SINGLE_OUTPUT (0x02) /* * The following define is the default behavior. * Output level 0 is 0V and 7ffff corresponds to 5V. * Use this to specify that a discrete mixing stage * follows. */ #define AY8910_DISCRETE_OUTPUT (0x04) /* * The following define causes the driver to output * resistor values. Intended to be used for * netlist interfacing. */ #define AY8910_RESISTOR_OUTPUT (0x08) /* * This define specifies the initial state of YM2149 * pin 26 (SEL pin). By default it is set to high, * compatible with AY8910. */ /* TODO: make it controllable while it's running (used by any hw???) */ #define YM2149_PIN26_HIGH (0x00) /* or N/C */ #define YM2149_PIN26_LOW (0x10) class ay8910_device : public device_t, public device_sound_interface { public: enum psg_type_t { PSG_TYPE_AY, PSG_TYPE_YM }; // construction/destruction ay8910_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); // configuration helpers void set_flags(int flags) { m_flags = flags; } void set_psg_type(psg_type_t psg_type) { set_type(psg_type); } void set_resistors_load(int res_load0, int res_load1, int res_load2) { m_res_load[0] = res_load0; m_res_load[1] = res_load1; m_res_load[2] = res_load2; } auto port_a_read_callback() { return m_port_a_read_cb.bind(); } auto port_b_read_callback() { return m_port_b_read_cb.bind(); } auto port_a_write_callback() { return m_port_a_write_cb.bind(); } auto port_b_write_callback() { return m_port_b_write_cb.bind(); } u8 data_r() { return ay8910_read_ym(); } void address_w(u8 data); void data_w(u8 data); /* /RES */ void reset_w(u8 data = 0) { ay8910_reset_ym(); } // use this when BC1 == A0; here, BC1=0 selects 'data' and BC1=1 selects 'latch address' void data_address_w(offs_t offset, u8 data) { ay8910_write_ym(~offset & 1, data); } // note that directly connecting BC1 to A0 puts data on 0 and address on 1 // use this when BC1 == !A0; here, BC1=0 selects 'latch address' and BC1=1 selects 'data' void address_data_w(offs_t offset, u8 data) { ay8910_write_ym(offset & 1, data); } // bc1=a0, bc2=a1 void write_bc1_bc2(offs_t offset, u8 data); void set_volume(int channel,int volume); void ay_set_clock(int clock); struct ay_ym_param { double r_up; double r_down; int res_count; double res[32]; }; struct mosfet_param { double m_Vth; double m_Vg; int m_count; double m_Kn[32]; }; // internal interface for PSG component of YM device // FIXME: these should be private, but vector06 accesses them directly protected: ay8910_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock, psg_type_t psg_type, int streams, int ioports); // device-level overrides virtual void device_start() override; virtual void device_reset() override; virtual void device_clock_changed() override; // sound stream update overrides virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override; // trampolines for callbacks from fm.cpp static void psg_set_clock(device_t *device, int clock) { downcast(device)->ay_set_clock(clock); } static void psg_write(device_t *device, int address, int data) { downcast(device)->ay8910_write_ym(address, data); } static int psg_read(device_t *device) { return downcast(device)->ay8910_read_ym(); } static void psg_reset(device_t *device) { downcast(device)->ay8910_reset_ym(); } private: static constexpr unsigned NUM_CHANNELS = 3; // internal helpers void set_type(psg_type_t psg_type); inline u16 mix_3D(); void ay8910_write_reg(int r, int v); void build_mixer_table(); void ay8910_statesave(); void ay8910_write_ym(int addr, u8 data); u8 ay8910_read_ym(); void ay8910_reset_ym(); // internal state psg_type_t m_type; int m_streams; int m_ioports; int m_ready; sound_stream *m_channel; bool m_active; s32 m_register_latch; u8 m_regs[16]; s32 m_last_enable; s32 m_count[NUM_CHANNELS]; u8 m_output[NUM_CHANNELS]; u8 m_prescale_noise; s32 m_count_noise; s32 m_count_env; s8 m_env_step; u32 m_env_volume; u8 m_hold,m_alternate,m_attack,m_holding; s32 m_rng; u8 m_mode; u8 m_env_step_mask; /* init parameters ... */ int m_step; int m_zero_is_off; u8 m_vol_enabled[NUM_CHANNELS]; const ay_ym_param *m_par; const ay_ym_param *m_par_env; s32 m_vol_table[NUM_CHANNELS][16]; s32 m_env_table[NUM_CHANNELS][32]; std::unique_ptr m_vol3d_table; int m_flags; /* Flags */ int m_res_load[3]; /* Load on channel in ohms */ devcb_read8 m_port_a_read_cb; devcb_read8 m_port_b_read_cb; devcb_write8 m_port_a_write_cb; devcb_write8 m_port_b_write_cb; }; DECLARE_DEVICE_TYPE(AY8910, ay8910_device) class ay8912_device : public ay8910_device { public: ay8912_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); }; DECLARE_DEVICE_TYPE(AY8912, ay8912_device) class ay8913_device : public ay8910_device { public: ay8913_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); }; DECLARE_DEVICE_TYPE(AY8913, ay8913_device) class ay8914_device : public ay8910_device { public: ay8914_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); /* AY8914 handlers needed due to different register map */ u8 read(offs_t offset); void write(offs_t offset, u8 data); }; DECLARE_DEVICE_TYPE(AY8914, ay8914_device) class ay8930_device : public ay8910_device { public: ay8930_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); }; DECLARE_DEVICE_TYPE(AY8930, ay8930_device) class ym2149_device : public ay8910_device { public: ym2149_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); }; DECLARE_DEVICE_TYPE(YM2149, ym2149_device) class ym3439_device : public ay8910_device { public: ym3439_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); }; DECLARE_DEVICE_TYPE(YM3439, ym3439_device) class ymz284_device : public ay8910_device { public: ymz284_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); }; DECLARE_DEVICE_TYPE(YMZ284, ymz284_device) class ymz294_device : public ay8910_device { public: ymz294_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); }; DECLARE_DEVICE_TYPE(YMZ294, ymz294_device) #endif // MAME_DEVICES_SOUND_AY8910_H