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adbd0125fd
Check for the ES9018K2M dac in the bootloader for hw1/hw2 devices. Assume that all devices newer than hw2 have ES9018K2M DAC unconditionally. All devices will now report the correct hw revision in the debug menu under Device Data. Add devicedata.version field, current version 0. Rename device_data.lcd_version to device_data.hw_rev. hw2 devices with older bootloaders which ID as hw1 are special- cased to keep using hwvol on them. They should still upgrade though. Change-Id: If0fd5ce3bc6e85e511047721ec18e42fb89312e7
215 lines
No EOL
7.2 KiB
C
215 lines
No EOL
7.2 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2021 Aidan MacDonald, Dana Conrad
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "system.h"
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#include "audiohw.h"
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#include "pcm_sw_volume.h"
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#include "pcm_sampr.h"
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#include "i2c-target.h"
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#include "button.h"
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// #define LOGF_ENABLE
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#include "logf.h"
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#include "aic-x1000.h"
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#include "i2c-x1000.h"
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#include "gpio-x1000.h"
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#include "devicedata.h"
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/*
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* Earlier devices audio path appears to be:
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* DAC \--> HP Amp --> Stereo Switch --> HP OUT
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* \-> LO OUT
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*
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* Recent devices, the audio path seems to have changed to:
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* DAC --> HP Amp --> Stereo Switch \--> HP OUT
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* \-> LO OUT
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*/
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#if !defined(BOOTLOADER)
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void audiohw_init(void)
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{
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/* explicitly mute everything */
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gpio_set_level(GPIO_HPAMP_SHDN, 0);
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gpio_set_level(GPIO_STEREOSW_MUTE, 1);
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gpio_set_level(GPIO_DAC_PWR, 0);
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aic_set_play_last_sample(true);
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aic_set_external_codec(true);
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aic_set_i2s_mode(AIC_I2S_MASTER_MODE);
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audiohw_set_frequency(HW_FREQ_48);
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aic_enable_i2s_master_clock(true);
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aic_enable_i2s_bit_clock(true);
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mdelay(10);
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/* power on DAC and HP Amp */
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gpio_set_level(GPIO_DAC_ANALOG_PWR, 1);
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gpio_set_level(GPIO_HPAMP_POWER, 1);
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}
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void audiohw_postinit(void)
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{
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/*
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* enable playback, fill FIFO buffer with -1 to prevent
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* the DAC from auto-muting, wait, and then stop playback.
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* This seems to completely prevent power-on or first-track
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* clicking.
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*/
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jz_writef(AIC_CCR, ERPL(1));
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for (int i = 0; i < 32; i++)
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{
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jz_write(AIC_DR, 0xFFFFFF);
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}
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/* Wait until all samples are through the FIFO. */
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while(jz_readf(AIC_SR, TFL) != 0);
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mdelay(20); /* This seems to silence the power-on click */
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jz_writef(AIC_CCR, ERPL(0));
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/* unmute - attempt to make power-on pop-free */
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gpio_set_level(GPIO_STEREOSW_SEL, 0);
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gpio_set_level(GPIO_HPAMP_SHDN, 1);
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mdelay(10);
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gpio_set_level(GPIO_DAC_PWR, 1);
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mdelay(10);
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gpio_set_level(GPIO_STEREOSW_MUTE, 0);
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i2c_x1000_set_freq(ES9018K2M_BUS, I2C_FREQ_400K);
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// devices hw2 and newer use es9018k2m i2c dac
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// hw1 devices use swvol
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// special case hw2 devices with bootloaders identifying as hw1 (pre-version field)
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if (device_data.hw_rev >= 2 || \
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(device_data.version == 0xff && eros_qn_discover_dac(true)))
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{
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#if defined(LOGF_ENABLE)
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if (device_data.version == 0xff) {
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logf("OLD BOOTLOADER FOUND, UPDATE IT!");
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}
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#endif
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es9018k2m_present_flag = true;
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/* Default is 32-bit data, and it works ok. Enabling the following
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* causes issue. Which is weird, I definitely thought AIC was configured
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* for 24-bit data... */
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// es9018k2m_write_reg(ES9018K2M_REG1_INPUT_CONFIG, 0b01001100); // 24-bit data
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/* Datasheet: Sets the number os FSR edges that must occur before *
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* the DPLL and ASRC can lock on to the the incoming Signal. *
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* When Samplerates >= 96khz could be used, STOP_DIV should be set *
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* to 0 (= 16384 FSR Edges). *
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* Reg #10 [3:0] (0x05 default, 2730 FSR Edges) */
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es9018k2m_write_reg(ES9018K2M_REG10_MASTER_MODE_CTRL, 0x00);
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/* Datasheet: The ES90x8Q2M/K2M contains a Jitter Eliminator block, *
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* which employs the use of a digital phase locked loop (DPLL) to *
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* lock to the incoming audio clock rate. When in I2S or SPDIF mode, *
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* the DPLL will lock to the frame clock (1 x fs). However, when in *
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* DSD mode, the DPLL has no frame clock information, and must in- *
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* stead lock to the bit clock rate (BCK). For this reason, there are *
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* two bandwidth settings for the DPLL. *
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Reg #12 [7:4] (0x05 default) bandwidth for I2S / SPDIF mode.
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Reg #12 [3:0] (0x0A default) bandwidth for DSD mode.
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* The DPLL bandwidth sets how quickly the DPLL can adjust its intern *
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* representation of the audio clock. The higher the jitter or *
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* frequency drift on the audio clock, the higher the bandwidth must *
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* be so that the DPLL can react. *
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* ! If the bandwidth is “too low”, the DPLL will loose lock and you *
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* ! will hear random dropouts. (Fixed my SurfansF20 v3.2 dropouts) */
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es9018k2m_write_reg(ES9018K2M_REG12_DPLL_SETTINGS, 0xda);
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}
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}
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void audiohw_close(void)
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{
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/* mute - attempt to make power-off pop-free */
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gpio_set_level(GPIO_STEREOSW_MUTE, 1);
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mdelay(10);
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gpio_set_level(GPIO_DAC_PWR, 0);
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mdelay(10);
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gpio_set_level(GPIO_HPAMP_SHDN, 0);
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}
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void audiohw_set_frequency(int fsel)
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{
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int sampr = hw_freq_sampr[fsel];
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int mult = 256;
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aic_enable_i2s_bit_clock(false);
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aic_set_i2s_clock(X1000_CLK_SCLK_A, sampr, mult);
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aic_enable_i2s_bit_clock(true);
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}
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void audiohw_set_volume(int vol_l, int vol_r)
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{
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int l, r;
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eros_qn_set_last_vol(vol_l, vol_r);
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l = vol_l;
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r = vol_r;
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#if (defined(HAVE_HEADPHONE_DETECTION) && defined(HAVE_LINEOUT_DETECTION))
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/* Due to the hardware's detection method, make the Line-Out
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* the default. The LO can only be detected if it is active
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* (assuming a high-impedance device is attached). HP takes priority
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* if both are present. */
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if (headphones_inserted())
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{
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eros_qn_switch_output(0);
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}
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else
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{
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eros_qn_switch_output(1);
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l = r = eros_qn_get_volume_limit();
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}
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#endif
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if (es9018k2m_present_flag) /* ES9018K2M */
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{
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/* Same volume range and mute point for both DACs, so use PCM5102A_VOLUME_MIN */
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l = l <= PCM5102A_VOLUME_MIN ? PCM_MUTE_LEVEL : l;
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r = r <= PCM5102A_VOLUME_MIN ? PCM_MUTE_LEVEL : r;
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/* set software volume just below unity due to
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* DAC offset. We don't want to overflow the PCM system. */
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pcm_set_master_volume(-1, -1);
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es9018k2m_set_volume_async(l, r);
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}
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else /* PCM5102A */
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{
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l = l <= PCM5102A_VOLUME_MIN ? PCM_MUTE_LEVEL : (l / 20);
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r = r <= PCM5102A_VOLUME_MIN ? PCM_MUTE_LEVEL : (r / 20);
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pcm_set_master_volume(l, r);
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}
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}
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void audiohw_set_filter_roll_off(int value)
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{
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if (es9018k2m_present_flag)
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{
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es9018k2m_set_filter_roll_off(value);
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}
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}
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#endif /* !defined(BOOTLOADER) */ |