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// license:BSD-3-Clause
// copyright-holders:Ryan Holtz
/**********************************************************************
SGI HAL2 Audio Controller emulation
**********************************************************************/
#ifndef MAME_MACHINE_HAL2_H
#define MAME_MACHINE_HAL2_H
#pragma once
#include "sound/dac.h"
#include "speaker.h"
class hal2_device : public device_t
{
public:
hal2_device(const machine_config &mconfig, const char *tag, device_t *owner)
: hal2_device(mconfig, tag, owner, (uint32_t)0)
{
}
hal2_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
void write(offs_t offset, uint16_t data);
uint16_t read(offs_t offset);
attotime get_rate(const uint32_t channel);
void set_right_volume(uint8_t vol) { m_rdac->set_output_gain(ALL_OUTPUTS, vol / 255.0f); }
void set_left_volume(uint8_t vol) { m_ldac->set_output_gain(ALL_OUTPUTS, vol / 255.0f); }
void dma_write(uint32_t channel, int16_t data);
protected:
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_add_mconfig(machine_config &config) override;
void update_clock_freq(int clock_gen);
enum
{
IAR_TYPE = 0xf000,
IAR_TYPE_SHIFT = 12,
IAR_NUM = 0x0f00,
IAR_NUM_SHIFT = 8,
IAR_ACCESS_SEL = 0x0080,
IAR_PARAM = 0x000c,
IAR_PARAM_SHIFT = 2,
IAR_RB_INDEX = 0x0003
};
enum
{
ISR_TSTATUS = 0x01,
ISR_USTATUS = 0x02,
ISR_QUAD_MODE = 0x04,
ISR_GLOBAL_RESET = 0x08,
ISR_CODEC_RESET = 0x10,
};
enum
{
STATUS_REG = 0x0010/4,
REVISION_REG = 0x0020/4,
INDIRECT_ADDRESS_REG = 0x0030/4,
INDIRECT_DATA0_REG = 0x0040/4,
INDIRECT_DATA1_REG = 0x0050/4,
INDIRECT_DATA2_REG = 0x0060/4,
INDIRECT_DATA3_REG = 0x0070/4,
};
enum
{
DAC_L,
DAC_R
};
required_device<dac_16bit_r2r_twos_complement_device> m_ldac;
required_device<dac_16bit_r2r_twos_complement_device> m_rdac;
uint16_t m_isr = 0;
uint16_t m_iar = 0;
uint16_t m_idr[4]{};
uint16_t m_codeca_ctrl[2]{};
uint16_t m_codeca_channel = 0;
uint16_t m_codeca_clock = 0;
uint16_t m_codeca_channel_count = 0;
uint16_t m_codecb_ctrl[2]{};
uint16_t m_codecb_channel = 0;
uint16_t m_codecb_clock = 0;
uint16_t m_codecb_channel_count = 0;
uint16_t m_bres_clock_sel[3]{};
uint16_t m_bres_clock_inc[3]{};
uint16_t m_bres_clock_modctrl[3]{};
uint16_t m_bres_clock_freq[3]{};
attotime m_bres_clock_rate[3]{};
uint16_t m_curr_dac = 0;
static const uint32_t s_channel_pair[4];
};
DECLARE_DEVICE_TYPE(SGI_HAL2, hal2_device)
#endif // MAME_MACHINE_HAL2_H
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