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AK4376 driver: refactoring

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Some audiohw API calls are shared between playback and recording,
eg. frequency settings. Implementing these in the DAC driver won't
work for the M3K, as it uses a separate codec for microphone input.

Change-Id: Ieb0a267f8a81b9e2bbf0bbca951c5778f8dcd203
This commit is contained in:
Aidan MacDonald 2021-05-31 01:26:26 +01:00
parent f63edb52ef
commit 663c5268ac
3 changed files with 87 additions and 81 deletions
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56
firmware/target/mips/ingenic_x1000/fiiom3k/audiohw-fiiom3k.c
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@ -22,10 +22,24 @@
#include "audiohw.h"
#include "system.h"
#include "pcm_sampr.h"
#include "logf.h"
#include "aic-x1000.h"
#include "i2c-x1000.h"
#include "gpio-x1000.h"
#include "logf.h"
static int cur_fsel = HW_FREQ_48;
static int cur_power_mode = 0;
static void set_ak_freqmode(void)
{
int freq = hw_freq_sampr[cur_fsel];
int mult = freq >= SAMPR_176 ? 128 : 256;
aic_enable_i2s_bit_clock(false);
aic_set_i2s_clock(X1000_CLK_SCLK_A, freq, mult);
ak4376_set_freqmode(cur_fsel, mult, cur_power_mode);
aic_enable_i2s_bit_clock(true);
}
void audiohw_init(void)
{
@ -36,7 +50,8 @@ void audiohw_init(void)
/* Initialize DAC */
i2c_x1000_set_freq(AK4376_BUS, I2C_FREQ_400K);
ak4376_init();
ak4376_open();
set_ak_freqmode();
}
void audiohw_postinit(void)
@ -48,22 +63,29 @@ void audiohw_close(void)
ak4376_close();
}
void audiohw_set_volume(int vol_l, int vol_r)
{
ak4376_set_volume(vol_l, vol_r);
}
void audiohw_set_filter_roll_off(int val)
{
ak4376_set_filter_roll_off(val);
}
void audiohw_set_frequency(int fsel)
{
cur_fsel = fsel;
set_ak_freqmode();
}
void audiohw_set_power_mode(int mode)
{
cur_power_mode = mode;
set_ak_freqmode();
}
void ak4376_set_pdn_pin(int level)
{
gpio_config(GPIO_A, 1 << 16, GPIO_OUTPUT(level ? 1 : 0));
}
int ak4376_set_mclk_freq(int hw_freq, bool enabled)
{
int freq = hw_freq_sampr[hw_freq];
int mult = freq >= SAMPR_176 ? 128 : 256;
if(enabled) {
if(aic_set_i2s_clock(X1000_CLK_SCLK_A, freq, mult)) {
logf("WARNING: unachievable audio rate %d x %d!?", freq, mult);
}
}
aic_enable_i2s_bit_clock(enabled);
return mult;
}