// license:BSD-3-Clause // copyright-holders:smf /*************************************************************************** dac.h Four quadrant multiplying DAC. Binary Weighted Resistor Network, R-2R Ladder & PWM Binary, Ones Complement, Twos Complement or Sign Magnitude coding ***************************************************************************/ #ifndef MAME_SOUND_DAC_H #define MAME_SOUND_DAC_H #pragma once #include #define DAC_VREF_POS_INPUT (0) #define DAC_VREF_NEG_INPUT (1) class dac_bit_interface { public: virtual DECLARE_WRITE_LINE_MEMBER(write) = 0; virtual DECLARE_WRITE8_MEMBER(data_w) = 0; }; class dac_byte_interface { public: virtual void write(unsigned char data) = 0; virtual DECLARE_WRITE8_MEMBER(data_w) = 0; }; class dac_word_interface { public: virtual void write(unsigned short data) = 0; virtual DECLARE_WRITE16_MEMBER(data_w) = 0; }; template constexpr stream_sample_t dac_multiply(const double vref, const stream_sample_t code) { return (bits > 1) ? ((vref * code) / (1 << (bits))) : (vref * code); } template class dac_code { protected: dac_code(double gain) : m_stream(nullptr), m_code(0), m_gain(gain) { } sound_stream * m_stream; stream_sample_t m_code; const double m_gain; inline void setCode(stream_sample_t code) { code &= ~(~std::make_unsigned_t(0) << bits); if (m_code != code) { m_stream->update(); m_code = code; } } virtual void sound_stream_update_tag(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) = 0; }; template class dac_code_binary : protected dac_code { protected: using dac_code::dac_code; virtual void sound_stream_update_tag(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override { for (int samp = 0; samp < samples; samp++) { double const vref_pos = inputs[DAC_VREF_POS_INPUT][samp] * this->m_gain; double const vref_neg = inputs[DAC_VREF_NEG_INPUT][samp] * this->m_gain; stream_sample_t const vout = vref_neg + dac_multiply(vref_pos - vref_neg, this->m_code); outputs[0][samp] = vout; } } }; template class dac_code_ones_complement : protected dac_code { protected: using dac_code::dac_code; virtual void sound_stream_update_tag(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override { if (this->m_code & (1 << (bits - 1))) { for (int samp = 0; samp < samples; samp++) { double const vref_neg = inputs[DAC_VREF_NEG_INPUT][samp] * this->m_gain; stream_sample_t const vout = dac_multiply(vref_neg, this->m_code ^ ~(~0U << bits)); outputs[0][samp] = vout; } } else { for (int samp = 0; samp < samples; samp++) { double const vref_pos = inputs[DAC_VREF_POS_INPUT][samp] * this->m_gain; stream_sample_t const vout = dac_multiply(vref_pos, this->m_code); outputs[0][samp] = vout; } } } }; template class dac_code_twos_complement : protected dac_code { protected: using dac_code::dac_code; virtual void sound_stream_update_tag(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override { for (int samp = 0; samp < samples; samp++) { double const vref_pos = inputs[DAC_VREF_POS_INPUT][samp] * this->m_gain; double const vref_neg = inputs[DAC_VREF_NEG_INPUT][samp] * this->m_gain; stream_sample_t const vout = vref_neg + dac_multiply(vref_pos - vref_neg, this->m_code ^ (1 << (bits - 1))); outputs[0][samp] = vout; } } }; template class dac_code_sign_magntitude : protected dac_code { protected: using dac_code::dac_code; virtual void sound_stream_update_tag(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override { if (this->m_code & (1 << (bits - 1))) { for (int samp = 0; samp < samples; samp++) { double const vref_neg = inputs[DAC_VREF_NEG_INPUT][samp] * this->m_gain; stream_sample_t const vout = dac_multiply(vref_neg, this->m_code ^ (1 << (bits - 1))); outputs[0][samp] = vout; } } else { for (int samp = 0; samp < samples; samp++) { double const vref_pos = inputs[DAC_VREF_POS_INPUT][samp] * this->m_gain; stream_sample_t const vout = dac_multiply(vref_pos, this->m_code); outputs[0][samp] = vout; } } } }; template class dac_device : public device_t, public device_sound_interface, protected _dac_code { protected: dac_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock, double gain) : device_t(mconfig, type, tag, owner, clock), device_sound_interface(mconfig, *this), _dac_code(gain) { } virtual void device_start() override { this->m_stream = stream_alloc(2, 1, 48000 * 4); save_item(NAME(this->m_code)); } virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override { _dac_code::sound_stream_update_tag(stream, inputs, outputs, samples); } }; template class dac_generator; template class dac_generator : public dac_bit_interface, public dac_device<_dac_code> { public: dac_generator(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock, double gain) : dac_device<_dac_code>(mconfig, type, tag, owner, clock, gain) { } virtual WRITE_LINE_MEMBER(write) override { this->setCode(state); } virtual WRITE8_MEMBER(data_w) override { this->setCode(data); } }; template class dac_generator : public dac_byte_interface, public dac_device<_dac_code> { public: dac_generator(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock, double gain) : dac_device<_dac_code>(mconfig, type, tag, owner, clock, gain) { } virtual void write(unsigned char data) override { this->setCode(data); } virtual DECLARE_WRITE8_MEMBER(data_w) override { this->setCode(data); } }; template class dac_generator : public dac_word_interface, public dac_device<_dac_code> { public: dac_generator(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock, double gain) : dac_device<_dac_code>(mconfig, type, tag, owner, clock, gain) { } virtual void write(unsigned short data) override { this->setCode(data); } virtual DECLARE_WRITE16_MEMBER(data_w) override { this->setCode(data); } }; constexpr double dac_gain_r2r = 1.0; constexpr double dac_gain_binary_weighted = 2.0; #ifndef DAC_GENERATOR_EPILOG #define DAC_GENERATOR_EPILOG(_dac_type, _dac_class, _dac_description, _dac_shortname) #endif #define DAC_GENERATOR(_dac_type, _dac_class, _dac_interface, _dac_coding, _dac_gain, _dac_description, _dac_shortname) \ DECLARE_DEVICE_TYPE(_dac_type, _dac_class) \ class _dac_class : public dac_generator<_dac_interface, _dac_coding> \ {\ public: \ _dac_class(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : \ dac_generator(mconfig, _dac_type, tag, owner, clock, _dac_gain) {} \ }; \ DAC_GENERATOR_EPILOG(_dac_type, _dac_class, _dac_description, _dac_shortname) // DAC chips DAC_GENERATOR(AD557, ad557_device, dac_byte_interface, dac_code_binary<8>, dac_gain_r2r, "AD557", "ad557") DAC_GENERATOR(AD7224, ad7224_device, dac_byte_interface, dac_code_binary<8>, dac_gain_r2r, "AD7224", "ad7224") DAC_GENERATOR(AD7521, ad7521_device, dac_word_interface, dac_code_binary<12>, dac_gain_r2r, "AD7521", "ad7521") DAC_GENERATOR(AD7523, ad7523_device, dac_byte_interface, dac_code_binary<8>, dac_gain_r2r, "AD7523", "ad7523") DAC_GENERATOR(AD7524, ad7524_device, dac_byte_interface, dac_code_binary<8>, dac_gain_r2r, "AD7524", "ad7524") DAC_GENERATOR(AD7528, ad7528_device, dac_byte_interface, dac_code_binary<8>, dac_gain_r2r, "AD7528", "ad7528") /// 2 x vin + 2 x vout DAC_GENERATOR(AD7533, ad7533_device, dac_word_interface, dac_code_binary<10>, dac_gain_r2r, "AD7533", "ad7533") DAC_GENERATOR(AD7541, ad7541_device, dac_word_interface, dac_code_binary<12>, dac_gain_r2r, "AD7541", "ad7541") DAC_GENERATOR(AM6012, am6012_device, dac_word_interface, dac_code_binary<12>, dac_gain_r2r, "AM6012", "am6012") DAC_GENERATOR(DAC08, dac08_device, dac_byte_interface, dac_code_binary<8>, dac_gain_r2r, "DAC08", "dac08") DAC_GENERATOR(DAC0800, dac0800_device, dac_byte_interface, dac_code_binary<8>, dac_gain_r2r, "DAC0800", "dac0800") DAC_GENERATOR(DAC0832, dac0832_device, dac_byte_interface, dac_code_binary<8>, dac_gain_r2r, "DAC0832", "dac0832") // should be double-buffered? DAC_GENERATOR(DAC1200, dac1200_device, dac_word_interface, dac_code_binary<12>, dac_gain_r2r, "DAC1200", "dac1200") DAC_GENERATOR(MC1408, mc1408_device, dac_byte_interface, dac_code_binary<8>, dac_gain_r2r, "MC1408", "mc1408") DAC_GENERATOR(MC3408, mc3408_device, dac_byte_interface, dac_code_binary<8>, dac_gain_r2r, "MC3408", "mc3408") DAC_GENERATOR(MC3410, mc3410_device, dac_word_interface, dac_code_binary<10>, dac_gain_r2r, "MC3410", "mc3410") DAC_GENERATOR(PCM54HP, pcm54hp_device, dac_word_interface, dac_code_binary<16>, dac_gain_r2r, "PCM54HP", "pcm54hp") DAC_GENERATOR(UDA1341TS, uda1341ts_device, dac_word_interface, dac_code_twos_complement<16>, dac_gain_r2r, "UDA1341TS", "uda1341ts") // I2C stereo audio codec DAC_GENERATOR(ZN425E, zn425e_device, dac_byte_interface, dac_code_binary<8>, dac_gain_r2r, "ZN425E", "zn425e") DAC_GENERATOR(ZN428E, zn428e_device, dac_byte_interface, dac_code_binary<8>, dac_gain_r2r, "ZN428E-8", "zn428e") DAC_GENERATOR(ZN429E, zn429e_device, dac_byte_interface, dac_code_binary<8>, dac_gain_r2r, "ZN429E-8", "zn429e") // DAC circuits/unidentified chips DAC_GENERATOR(DAC_1BIT, dac_1bit_device, dac_bit_interface, dac_code_binary<1>, 1.0, "1-Bit DAC", "dac") DAC_GENERATOR(DAC_2BIT_BINARY_WEIGHTED, dac_2bit_binary_weighted_device, dac_byte_interface, dac_code_binary<2>, dac_gain_binary_weighted, "2-Bit Binary Weighted DAC", "dac_2bit_bw") DAC_GENERATOR(DAC_2BIT_BINARY_WEIGHTED_ONES_COMPLEMENT, dac_2bit_binary_weighted_ones_complement_device, dac_byte_interface, dac_code_ones_complement<2>, dac_gain_binary_weighted, "2-Bit Binary Weighted Ones Complement DAC", "dac_2bit_bw_oc") DAC_GENERATOR(DAC_2BIT_R2R, dac_2bit_r2r_device, dac_byte_interface, dac_code_binary<2>, dac_gain_r2r, "2-Bit R-2R DAC", "dac_2bit_r2r") DAC_GENERATOR(DAC_3BIT_BINARY_WEIGHTED, dac_3bit_binary_weighted_device, dac_byte_interface, dac_code_binary<3>, dac_gain_binary_weighted, "3-Bit Binary Weighted DAC", "dac_3bit_bw") DAC_GENERATOR(DAC_4BIT_BINARY_WEIGHTED, dac_4bit_binary_weighted_device, dac_byte_interface, dac_code_binary<4>, dac_gain_binary_weighted, "4-Bit Binary Weighted DAC", "dac_4bit_bw") DAC_GENERATOR(DAC_4BIT_BINARY_WEIGHTED_SIGN_MAGNITUDE, dac_4bit_binary_weighted_sign_magnitude_device, dac_byte_interface, dac_code_sign_magntitude<4>, dac_gain_binary_weighted, "4-Bit Binary Weighted Sign Magnitude DAC", "dac_4bit_bw_sm") DAC_GENERATOR(DAC_4BIT_R2R, dac_4bit_r2r_device, dac_byte_interface, dac_code_binary<4>, dac_gain_r2r, "4-Bit R-2R DAC", "dac_4bit_r2r") DAC_GENERATOR(DAC_6BIT_BINARY_WEIGHTED, dac_6bit_binary_weighted_device, dac_byte_interface, dac_code_binary<6>, dac_gain_binary_weighted, "6-Bit Binary Weighted DAC", "dac_6bit_bw") DAC_GENERATOR(DAC_6BIT_R2R, dac_6bit_r2r_device, dac_byte_interface, dac_code_binary<6>, dac_gain_r2r, "6-Bit R-2R DAC", "dac_6bit_r2r") DAC_GENERATOR(DAC_8BIT_BINARY_WEIGHTED, dac_binary_weighted_8bit_device, dac_byte_interface, dac_code_binary<8>, dac_gain_binary_weighted, "8-Bit Binary Weighted DAC", "dac_8bit_bw") DAC_GENERATOR(DAC_8BIT_PWM, dac_8bit_pwm_device, dac_byte_interface, dac_code_binary<8>, dac_gain_r2r, "8-Bit PWM DAC", "dac_8bit_pwm") DAC_GENERATOR(DAC_8BIT_R2R, dac_8bit_r2r_device, dac_byte_interface, dac_code_binary<8>, dac_gain_r2r, "8-Bit R-2R DAC", "dac_8bit_r2r") DAC_GENERATOR(DAC_8BIT_R2R_TWOS_COMPLEMENT, dac_8bit_r2r_twos_complement_device, dac_byte_interface, dac_code_twos_complement<8>, dac_gain_r2r, "8-Bit R-2R Twos Complement DAC", "dac_8bit_r2r_tc") DAC_GENERATOR(DAC_10BIT_R2R, dac_10bit_r2r_device, dac_word_interface, dac_code_binary<10>, dac_gain_r2r, "10-Bit R-2R DAC", "dac_10bit_r2r") DAC_GENERATOR(DAC_12BIT_R2R, dac_12bit_r2r_device, dac_word_interface, dac_code_binary<12>, dac_gain_r2r, "12-Bit R-2R DAC", "dac_12bit_r2r") DAC_GENERATOR(DAC_12BIT_R2R_TWOS_COMPLEMENT, dac_12bit_r2r_twos_complement_device, dac_word_interface, dac_code_twos_complement<12>, dac_gain_r2r, "12-Bit R-2R Twos Complement DAC", "dac_12bit_r2r_tc") DAC_GENERATOR(DAC_16BIT_R2R, dac_16bit_r2r_device, dac_word_interface, dac_code_binary<16>, dac_gain_r2r, "16-Bit R-2R DAC", "dac_16bit_r2r") DAC_GENERATOR(DAC_16BIT_R2R_TWOS_COMPLEMENT, dac_16bit_r2r_twos_complement_device, dac_word_interface, dac_code_twos_complement<16>, dac_gain_r2r, "16-Bit R-2R Twos Complement DAC", "dac_16bit_r2r_tc") #undef DAC_GENERATOR #undef DAC_GENERATOR_EPILOG #endif // MAME_SOUND_DAC_H