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// license:BSD-3-Clause
// copyright-holders:Aaron Giles
/**********************************************************************************************
*
* Ensoniq ES5505/6 driver
* by Aaron Giles
*
**********************************************************************************************/
#ifndef MAME_SOUND_ES5506_H
#define MAME_SOUND_ES5506_H
#pragma once
#define ES5506_MAKE_WAVS 0
#define MCFG_ES5506_REGION0(_region) \
downcast<es5506_device &>(*device).set_region0(_region);
#define MCFG_ES5506_REGION1(_region) \
downcast<es5506_device &>(*device).set_region1(_region);
#define MCFG_ES5506_REGION2(_region) \
downcast<es5506_device &>(*device).set_region2(_region);
#define MCFG_ES5506_REGION3(_region) \
downcast<es5506_device &>(*device).set_region3(_region);
#define MCFG_ES5506_CHANNELS(_chan) \
downcast<es5506_device &>(*device).set_channels(_chan);
#define MCFG_ES5506_IRQ_CB(_devcb) \
devcb = &downcast<es5506_device &>(*device).set_irq_callback(DEVCB_##_devcb);
#define MCFG_ES5506_READ_PORT_CB(_devcb) \
devcb = &downcast<es5506_device &>(*device).set_read_port_callback(DEVCB_##_devcb);
#define MCFG_ES5505_REGION0(_region) \
downcast<es5505_device &>(*device).set_region0(_region);
#define MCFG_ES5505_REGION1(_region) \
downcast<es5505_device &>(*device).set_region1(_region);
#define MCFG_ES5505_CHANNELS(_chan) \
downcast<es5505_device &>(*device).set_channels(_chan);
#define MCFG_ES5505_IRQ_CB(_devcb) \
devcb = &downcast<es5505_device &>(*device).set_irq_callback(DEVCB_##_devcb);
#define MCFG_ES5505_READ_PORT_CB(_devcb) \
devcb = &downcast<es5505_device &>(*device).set_read_port_callback(DEVCB_##_devcb);
class es550x_device : public device_t, public device_sound_interface
{
public:
void set_region0(const char *region0) { m_region0 = region0; }
void set_region1(const char *region1) { m_region1 = region1; }
void set_region2(const char *region2) { m_region2 = region2; }
void set_region3(const char *region3) { m_region3 = region3; }
void set_channels(int channels) { m_channels = channels; }
template <class Object> devcb_base &set_irq_callback(Object &&cb) { return m_irq_cb.set_callback(std::forward<Object>(cb)); }
template <class Object> devcb_base &set_read_port_callback(Object &&cb) { return m_read_port_cb.set_callback(std::forward<Object>(cb)); }
protected:
// struct describing a single playing voice
struct es550x_voice
{
es550x_voice() { }
// external state
uint32_t control = 0; // control register
uint32_t freqcount = 0; // frequency count register
uint32_t start = 0; // start register
uint32_t lvol = 0; // left volume register
uint32_t end = 0; // end register
uint32_t lvramp = 0; // left volume ramp register
uint32_t accum = 0; // accumulator register
uint32_t rvol = 0; // right volume register
uint32_t rvramp = 0; // right volume ramp register
uint32_t ecount = 0; // envelope count register
uint32_t k2 = 0; // k2 register
uint32_t k2ramp = 0; // k2 ramp register
uint32_t k1 = 0; // k1 register
uint32_t k1ramp = 0; // k1 ramp register
int32_t o4n1 = 0; // filter storage O4(n-1)
int32_t o3n1 = 0; // filter storage O3(n-1)
int32_t o3n2 = 0; // filter storage O3(n-2)
int32_t o2n1 = 0; // filter storage O2(n-1)
int32_t o2n2 = 0; // filter storage O2(n-2)
int32_t o1n1 = 0; // filter storage O1(n-1)
uint32_t exbank = 0; // external address bank
// internal state
uint8_t index = 0; // index of this voice
uint8_t filtcount = 0; // filter count
uint32_t accum_mask = 0;
};
es550x_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
// device-level overrides
virtual void device_start() override;
virtual void device_stop() override;
virtual void device_reset() override;
// sound stream update overrides
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override;
void update_irq_state();
void update_internal_irq_state();
void compute_tables();
void generate_dummy(es550x_voice *voice, uint16_t *base, int32_t *lbuffer, int32_t *rbuffer, int samples);
void generate_ulaw(es550x_voice *voice, uint16_t *base, int32_t *lbuffer, int32_t *rbuffer, int samples);
void generate_pcm(es550x_voice *voice, uint16_t *base, int32_t *lbuffer, int32_t *rbuffer, int samples);
// internal state
sound_stream *m_stream; /* which stream are we using */
int m_sample_rate; /* current sample rate */
uint16_t * m_region_base[4]; /* pointer to the base of the region */
uint32_t m_write_latch; /* currently accumulated data for write */
uint32_t m_read_latch; /* currently accumulated data for read */
uint32_t m_master_clock; /* master clock frequency */
uint8_t m_current_page; /* current register page */
uint8_t m_active_voices; /* number of active voices */
uint8_t m_mode; /* MODE register */
uint8_t m_wst; /* W_ST register */
uint8_t m_wend; /* W_END register */
uint8_t m_lrend; /* LR_END register */
uint8_t m_irqv; /* IRQV register */
es550x_voice m_voice[32]; /* the 32 voices */
std::unique_ptr<int32_t[]> m_scratch;
std::unique_ptr<int16_t[]> m_ulaw_lookup;
std::unique_ptr<uint16_t[]> m_volume_lookup;
#if ES5506_MAKE_WAVS
void * m_wavraw; /* raw waveform */
#endif
const char * m_region0; /* memory region where the sample ROM lives */
const char * m_region1; /* memory region where the sample ROM lives */
const char * m_region2; /* memory region where the sample ROM lives */
const char * m_region3; /* memory region where the sample ROM lives */
int m_channels; /* number of output channels: 1 .. 6 */
devcb_write_line m_irq_cb; /* irq callback */
devcb_read16 m_read_port_cb; /* input port read */
};
class es5506_device : public es550x_device
{
public:
es5506_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
~es5506_device() {}
DECLARE_READ8_MEMBER( read );
DECLARE_WRITE8_MEMBER( write );
void voice_bank_w(int voice, int bank);
protected:
// device-level overrides
virtual void device_start() override;
// sound stream update overrides
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override;
void generate_samples(int32_t **outputs, int offset, int samples);
private:
inline void reg_write_low(es550x_voice *voice, offs_t offset, uint32_t data);
inline void reg_write_high(es550x_voice *voice, offs_t offset, uint32_t data);
inline void reg_write_test(es550x_voice *voice, offs_t offset, uint32_t data);
inline uint32_t reg_read_low(es550x_voice *voice, offs_t offset);
inline uint32_t reg_read_high(es550x_voice *voice, offs_t offset);
inline uint32_t reg_read_test(es550x_voice *voice, offs_t offset);
};
DECLARE_DEVICE_TYPE(ES5506, es5506_device)
class es5505_device : public es550x_device
{
public:
es5505_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
DECLARE_READ16_MEMBER( read );
DECLARE_WRITE16_MEMBER( write );
void voice_bank_w(int voice, int bank);
protected:
// device-level overrides
virtual void device_start() override;
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override;
void generate_samples(int32_t **outputs, int offset, int samples);
private:
// internal state
inline void reg_write_low(es550x_voice *voice, offs_t offset, uint16_t data, uint16_t mem_mask);
inline void reg_write_high(es550x_voice *voice, offs_t offset, uint16_t data, uint16_t mem_mask);
inline void reg_write_test(es550x_voice *voice, offs_t offset, uint16_t data, uint16_t mem_mask);
inline uint16_t reg_read_low(es550x_voice *voice, offs_t offset);
inline uint16_t reg_read_high(es550x_voice *voice, offs_t offset);
inline uint16_t reg_read_test(es550x_voice *voice, offs_t offset);
};
DECLARE_DEVICE_TYPE(ES5505, es5505_device)
#endif // MAME_SOUND_ES5506_H
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