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#pragma once
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#include <common.h>
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#include <pa_ringbuffer.h>
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typedef struct {
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bool audio_enabled;
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bool ch1_left;
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bool ch1_right;
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bool ch2_left;
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bool ch2_right;
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bool ch3_left;
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bool ch3_right;
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bool ch4_left;
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bool ch4_right;
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bool ch1_dac;
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bool ch2_dac;
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bool ch4_dac;
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bool ch1_len_fz;
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bool ch2_len_fz;
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bool ch3_len_fz;
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bool ch4_len_fz;
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u8 volume_left;
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u8 volume_right;
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bool vin_left;
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bool vin_right;
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u8 sq1_duty;
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u8 sq1_volume;
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u8 sq1_sample;
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u16 sq1_period_reset;
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u16 sq1_period_timer;
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bool sq1_enable;
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bool sq1_len_enable;
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u8 sq1_sweep_pace;
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bool sq1_sweep_direction;
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u8 sq1_initial_len;
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u8 sq1_len;
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u8 sq1_initial_volume;
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bool sq1_env_direction;
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bool sq1_env_direction_buffer;
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u8 sq1_env_pace;
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u8 sq1_env_pace_buffer;
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u8 sq1_env_timer;
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u8 sq1_sweep_step;
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u8 sq1_sweep_timer;
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bool sq1_sweep_enabled;
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u16 sq1_sweep_period;
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u16 sq1_calc_period;
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u8 sq2_duty;
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u8 sq2_volume;
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u8 sq2_sample;
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u16 sq2_period_reset;
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u16 sq2_period_timer;
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bool sq2_enable;
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bool sq2_len_enable;
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u8 sq2_initial_len;
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u8 sq2_len;
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u8 sq2_initial_volume;
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bool sq2_env_direction;
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bool sq2_env_direction_buffer;
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u8 sq2_env_pace;
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u8 sq2_env_pace_buffer;
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u8 sq2_env_timer;
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bool ch3_enable;
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bool ch3_dac;
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u8 ch3_initial_len;
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u8 ch3_len;
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u8 ch3_volume;
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u8 ch3_initial_volume;
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u16 ch3_period_timer;
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u16 ch3_period_reset;
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bool ch3_len_enable;
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u8 ch3_last_sample;
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u8 ch3_sample;
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bool ch4_enable;
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u8 ch4_initial_len;
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u8 ch4_len;
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u8 ch4_initial_volume;
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u8 ch4_volume;
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u8 ch4_env_pace;
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u8 ch4_env_pace_buffer;
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u8 ch4_env_timer;
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bool ch4_env_direction;
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bool ch4_env_direction_buffer;
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u8 ch4_clock_shift;
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bool ch4_lfsr_width;
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u8 ch4_clock_divider;
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bool ch4_len_enable;
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u16 ch4_lfsr;
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u8 wave_ram[16];
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} audio_context;
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void audio_init();
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void audio_tick();
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void audio_period_tick();
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u8 audio_read(u16 address);
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void audio_write(u16 address, u8 value);
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