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imx233/fuze+: implement audioout functions (init, volume, frequency); add stubs for audioin
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30798 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Amaury Pouly
parent
96f0464796
commit
7b70e5a8fa
4 changed files with 311 additions and 0 deletions
33
firmware/target/arm/imx233/audioin-imx233.c
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33
firmware/target/arm/imx233/audioin-imx233.c
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@ -0,0 +1,33 @@
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/***************************************************************************
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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) 2011 by Amaury Pouly
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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 "audioout-imx233.h"
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void imx233_audioin_preinit(void)
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{
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}
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void imx233_audioin_postinit(void)
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{
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}
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void imx233_audioin_close(void)
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{
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}
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@ -24,4 +24,8 @@
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#include "config.h"
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#include "cpu.h"
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void imx233_audioin_preinit(void);
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void imx233_audioin_postinit(void);
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void imx233_audioin_close(void);
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#endif /* __audioin_imx233__ */
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179
firmware/target/arm/imx233/audioout-imx233.c
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179
firmware/target/arm/imx233/audioout-imx233.c
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@ -0,0 +1,179 @@
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/***************************************************************************
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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) 2011 by Amaury Pouly
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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 "audioout-imx233.h"
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#include "clkctrl-imx233.h"
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#include "rtc-imx233.h"
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#include "pcm_sampr.h"
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void imx233_audioout_preinit(void)
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{
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/* Enable AUDIOOUT block */
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imx233_reset_block(&HW_AUDIOOUT_CTRL);
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/* Enable digital filter clock */
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imx233_enable_xtal_clock(XTAL_FILT, true);
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/* Enable DAC */
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__REG_CLR(HW_AUDIOOUT_ANACLKCTRL) = HW_AUDIOOUT_ANACLKCTRL__CLKGATE;
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/* Set capless mode */
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__REG_CLR(HW_AUDIOOUT_PWRDN) = HW_AUDIOOUT_PWRDN__CAPLESS;
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/* Set word-length to 16-bit */
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__REG_SET(HW_AUDIOOUT_CTRL) = HW_AUDIOOUT_CTRL__WORD_LENGTH;
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/* Power up DAC */
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__REG_CLR(HW_AUDIOOUT_PWRDN) = HW_AUDIOOUT_PWRDN__DAC;
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/* Hold HP to ground to avoid pop, then release and power up HP */
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__REG_SET(HW_AUDIOOUT_ANACTRL) = HW_AUDIOOUT_ANACTRL__HP_HOLD_GND;
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__REG_SET(HW_RTC_PERSISTENT0) = HW_RTC_PERSISTENT0__SPARE__RELEASE_GND;
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__REG_CLR(HW_AUDIOOUT_PWRDN) = HW_AUDIOOUT_PWRDN__HEADPHONE;
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/* Set HP mode to AB */
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__REG_SET(HW_AUDIOOUT_ANACTRL) = HW_AUDIOOUT_ANACTRL__HP_CLASSAB;
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/* Stop holding to ground */
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__REG_CLR(HW_AUDIOOUT_ANACTRL) = HW_AUDIOOUT_ANACTRL__HP_HOLD_GND;
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/* Set dmawait count to 31 (see errata, workaround random stop) */
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__REG_CLR(HW_AUDIOOUT_CTRL) = HW_AUDIOOUT_CTRL__DMAWAIT_COUNT_BM;
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__REG_SET(HW_AUDIOOUT_CTRL) = 31 << HW_AUDIOOUT_CTRL__DMAWAIT_COUNT_BP;
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}
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void imx233_audioout_postinit(void)
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{
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/* start converting audio */
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__REG_SET(HW_AUDIOOUT_CTRL) = HW_AUDIOOUT_CTRL__RUN;
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}
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void imx233_audioout_close(void)
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{
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/* Switch to class A */
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__REG_CLR(HW_AUDIOOUT_ANACTRL) = HW_AUDIOOUT_ANACTRL__HP_CLASSAB;
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/* Hold HP to ground */
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__REG_SET(HW_AUDIOOUT_ANACTRL) = HW_AUDIOOUT_ANACTRL__HP_HOLD_GND;
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/* Mute HP and power down */
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__REG_SET(HW_AUDIOOUT_HPVOL) = HW_AUDIOOUT_HPVOL__MUTE;
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/* Power down HP */
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__REG_SET(HW_AUDIOOUT_PWRDN) = HW_AUDIOOUT_PWRDN__HEADPHONE;
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/* Mute DAC */
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__REG_SET(HW_AUDIOOUT_DACVOLUME) = HW_AUDIOOUT_DACVOLUME__MUTE_LEFT
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| HW_AUDIOOUT_DACVOLUME__MUTE_RIGHT;
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/* Power down DAC */
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__REG_SET(HW_AUDIOOUT_PWRDN) = HW_AUDIOOUT_PWRDN__DAC;
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/* Gate off DAC */
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__REG_SET(HW_AUDIOOUT_ANACLKCTRL) = HW_AUDIOOUT_ANACLKCTRL__CLKGATE;
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/* Disable digital filter clock */
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imx233_enable_xtal_clock(XTAL_FILT, false);
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/* will also gate off the module */
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__REG_CLR(HW_AUDIOOUT_CTRL) = HW_AUDIOOUT_CTRL__RUN;
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}
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/* volume in half dB */
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void imx233_audioout_set_dac_vol(int vol_l, int vol_r)
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{
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/* minimum is -100dB and max is 0dB */
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vol_l = MAX(-200, MIN(vol_l, 0));
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vol_r = MAX(-200, MIN(vol_r, 0));
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/* unmute, enable zero cross and set volume.
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* 0xff is 0dB */
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HW_AUDIOOUT_DACVOLUME =
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(0xff + vol_l) << HW_AUDIOOUT_DACVOLUME__VOLUME_LEFT_BP |
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(0xff + vol_r) << HW_AUDIOOUT_DACVOLUME__VOLUME_RIGHT_BP |
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HW_AUDIOOUT_DACVOLUME__EN_ZCD;
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}
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void imx233_audioout_set_hp_vol(int vol_l, int vol_r)
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{
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uint32_t select = (HW_AUDIOOUT_HPVOL & HW_AUDIOOUT_HPVOL__SELECT);
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/* minimum is -57.5dB and max is 6dB in DAC mode
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* and -51.5dB / 12dB in Line1 mode */
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int min = select ? -103 : -115;
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int max = select ? 24 : 12;
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vol_l = MAX(min, MIN(vol_l, max));
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vol_r = MAX(min, MIN(vol_r, max));
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/* unmute, enable zero cross and set volume. Keep select value. */
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HW_AUDIOOUT_HPVOL =
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(max - vol_l) << HW_AUDIOOUT_HPVOL__VOL_LEFT_BP |
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(max - vol_r) << HW_AUDIOOUT_HPVOL__VOL_RIGHT_BP |
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select |
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HW_AUDIOOUT_HPVOL__EN_MSTR_ZCD;
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}
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void imx233_audioout_set_freq(int fsel)
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{
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static struct
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{
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int base_mult;
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int src_hold;
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int src_int;
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int src_frac;
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}dacssr[HW_NUM_FREQ] =
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{
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HW_HAVE_8_([HW_FREQ_8] = { 0x1, 0x3, 0x17, 0xe00 } ,)
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HW_HAVE_11_([HW_FREQ_11] = { 0x1, 0x3, 0x11, 0x37 } ,)
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HW_HAVE_12_([HW_FREQ_12] = { 0x1, 0x3, 0xf, 0x13ff },)
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HW_HAVE_16_([HW_FREQ_16] = { 0x1, 0x1, 0x17, 0xe00},)
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HW_HAVE_22_([HW_FREQ_22] = { 0x1, 0x1, 0x11, 0x37 },)
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HW_HAVE_24_([HW_FREQ_24] = { 0x1, 0x1, 0xf, 0x13ff },)
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HW_HAVE_32_([HW_FREQ_32] = { 0x1, 0x0, 0x17, 0xe00},)
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HW_HAVE_44_([HW_FREQ_44] = { 0x1, 0x0, 0x11, 0x37 },)
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HW_HAVE_48_([HW_FREQ_48] = { 0x1, 0x0, 0xf, 0x13ff },)
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HW_HAVE_64_([HW_FREQ_64] = { 0x2, 0x0, 0x17, 0xe00},)
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HW_HAVE_88_([HW_FREQ_88] = { 0x2, 0x0, 0x11, 0x37 },)
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HW_HAVE_96_([HW_FREQ_96] = { 0x2, 0x0, 0xf, 0x13ff },)
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};
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HW_AUDIOOUT_DACSRR =
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dacssr[fsel].src_frac << HW_AUDIOOUT_DACSRR__SRC_FRAC_BP |
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dacssr[fsel].src_int << HW_AUDIOOUT_DACSRR__SRC_INT_BP |
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dacssr[fsel].src_hold << HW_AUDIOOUT_DACSRR__SRC_HOLD_BP |
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dacssr[fsel].base_mult << HW_AUDIOOUT_DACSRR__BASEMULT_BP;
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#if 0
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/* Select base_mult and src_hold depending on the audio range:
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* 0 < f <= 12000 --> base_mult = 1, src_hold = 3 (div by 4)
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* 12000 < f <= 24000 --> base_mult = 1, src_hold = 1 (div by 2)
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* 24000 < f <= 48000 --> base_mult = 1, src_hold = 0 (div by 1)
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* 48000 < f <= 96000 --> base_mult = 2, src_hold = 0 (mul by 2)
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* 96000 < f <= ..... --> base_mult = 4, src_hold = 0 (mul by 4) */
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int base_mult = 1;
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int src_hold = 0;
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if(f > 96000)
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base_mult = 4;
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else if(f > 48000)
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base_mult = 2;
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else if(f <= 12000)
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src_hold = 3;
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else if(f <= 24000)
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src_hold = 1;
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/* compute the divisor (a tricky to keep to do it with 32-bit words only) */
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int src_int = (750000 * base_mult) / (f * (src_hold + 1));
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int src_frac = ((750000 * base_mult - src_int * f * (src_hold + 1)) << 13) / (f * (src_hold + 1));
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HW_AUDIOOUT_DACSRR =
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src_frac << HW_AUDIOOUT_DACSRR__SRC_FRAC_BP |
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src_int << HW_AUDIOOUT_DACSRR__SRC_INT_BP |
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src_hold << HW_AUDIOOUT_DACSRR__SRC_HOLD_BP |
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base_mult << HW_AUDIOOUT_DACSRR__BASEMULT_BP;
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#endif
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}
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/* select between DAC and Line1 */
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void imx233_audiout_select_hp_input(bool line1)
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{
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if(line1)
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__REG_SET(HW_AUDIOOUT_HPVOL) = HW_AUDIOOUT_HPVOL__SELECT;
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else
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__REG_CLR(HW_AUDIOOUT_HPVOL) = HW_AUDIOOUT_HPVOL__SELECT;
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}
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@ -23,5 +23,100 @@
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#include "config.h"
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#include "cpu.h"
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#include "system.h"
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#define HW_AUDIOOUT_BASE 0x80048000
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#define HW_AUDIOOUT_CTRL (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x0))
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#define HW_AUDIOOUT_CTRL__RUN (1 << 0)
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#define HW_AUDIOOUT_CTRL__FIFO_ERROR_IRQ_EN (1 << 1)
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#define HW_AUDIOOUT_CTRL__FIFO_OVERFLOW_IRQ (1 << 2)
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#define HW_AUDIOOUT_CTRL__FIFO_UNDERFLOW_IRQ (1 << 3)
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#define HW_AUDIOOUT_CTRL__WORD_LENGTH (1 << 6)
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#define HW_AUDIOOUT_CTRL__SS3D_EFFECT_BP 8
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#define HW_AUDIOOUT_CTRL__SS3D_EFFECT_BM (3 << 8)
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#define HW_AUDIOOUT_CTRL__SS3D_EFFECT_OFF (0 << 8)
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#define HW_AUDIOOUT_CTRL__SS3D_EFFECT_3 (1 << 8)
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#define HW_AUDIOOUT_CTRL__SS3D_EFFECT_4P5 (2 << 8)
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#define HW_AUDIOOUT_CTRL__SS3D_EFFECT_6 (3 << 8)
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#define HW_AUDIOOUT_CTRL__DMAWAIT_COUNT_BP 16
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#define HW_AUDIOOUT_CTRL__DMAWAIT_COUNT_BM (0x1f << 16)
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#define HW_AUDIOOUT_DACSRR (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x20))
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#define HW_AUDIOOUT_DACSRR__SRC_FRAC_BP 0
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#define HW_AUDIOOUT_DACSRR__SRC_FRAC_BM (0x1ff << 0)
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#define HW_AUDIOOUT_DACSRR__SRC_INT_BP 16
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#define HW_AUDIOOUT_DACSRR__SRC_INT_BM (0x1f << 16)
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#define HW_AUDIOOUT_DACSRR__SRC_HOLD_BP 24
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#define HW_AUDIOOUT_DACSRR__SRC_HOLD_BM (0x7 << 24)
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#define HW_AUDIOOUT_DACSRR__BASEMULT_BP 28
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#define HW_AUDIOOUT_DACSRR__BASEMULT_BM (0x7 << 28)
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#define HW_AUDIOOUT_DACSRR__OSR (1 << 31)
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#define HW_AUDIOOUT_DACVOLUME (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x30))
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#define HW_AUDIOOUT_DACVOLUME__VOLUME_RIGHT_BP 0
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#define HW_AUDIOOUT_DACVOLUME__VOLUME_RIGHT_BM 0xff
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#define HW_AUDIOOUT_DACVOLUME__MUTE_RIGHT (1 << 8)
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#define HW_AUDIOOUT_DACVOLUME__VOLUME_UPDATE_RIGHT (1 << 12)
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#define HW_AUDIOOUT_DACVOLUME__VOLUME_LEFT_BP 16
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#define HW_AUDIOOUT_DACVOLUME__VOLUME_LEFT_BM (0xff << 16)
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#define HW_AUDIOOUT_DACVOLUME__MUTE_LEFT (1 << 24)
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#define HW_AUDIOOUT_DACVOLUME__EN_ZCD (1 << 25)
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#define HW_AUDIOOUT_DACVOLUME__VOLUME_UPDATE_LEFT (1 << 28)
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#define HW_AUDIOOUT_DACDEBUG (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x40))
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#define HW_AUDIOOUT_DACDEBUG__FIFO_STATUS 1
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#define HW_AUDIOOUT_HPVOL (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x50))
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#define HW_AUDIOOUT_HPVOL__VOL_RIGHT_BP 0
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#define HW_AUDIOOUT_HPVOL__VOL_RIGHT_BM (0x7f << 0)
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#define HW_AUDIOOUT_HPVOL__VOL_LEFT_BP 8
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#define HW_AUDIOOUT_HPVOL__VOL_LEFT_BM (0x7f << 8)
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#define HW_AUDIOOUT_HPVOL__SELECT (1 << 16)
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#define HW_AUDIOOUT_HPVOL__MUTE (1 << 24)
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#define HW_AUDIOOUT_HPVOL__EN_MSTR_ZCD (1 << 25)
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#define HW_AUDIOOUT_PWRDN (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x70))
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#define HW_AUDIOOUT_PWRDN__HEADPHONE (1 << 0)
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#define HW_AUDIOOUT_PWRDN__CAPLESS (1 << 4)
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#define HW_AUDIOOUT_PWRDN__ADC (1 << 8)
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#define HW_AUDIOOUT_PWRDN__DAC (1 << 12)
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#define HW_AUDIOOUT_PWRDN__RIGHT_ADC (1 << 16)
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#define HW_AUDIOOUT_PWRDN__SPEAKER (1 << 24)
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#define HW_AUDIOOUT_REFCTRL (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x80))
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#define HW_AUDIOOUT_REFCTRL__LOW_PWR (1 << 19)
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#define HW_AUDIOOUT_ANACTRL (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x90))
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#define HW_AUDIOOUT_ANACTRL__HP_CLASSAB (1 << 4)
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#define HW_AUDIOOUT_ANACTRL__HP_HOLD_GND (1 << 5)
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#define HW_AUDIOOUT_ANACTRL__SHORTMODE_LR_BP 17
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#define HW_AUDIOOUT_ANACTRL__SHORTMODE_LR_BM (3 << 17)
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#define HW_AUDIOOUT_ANACTRL__SHORTMODE_CM_BP 20
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#define HW_AUDIOOUT_ANACTRL__SHORTMODE_CM_BM (3 << 20)
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#define HW_AUDIOOUT_ANACTRL__SHORT_LR_STS (1 << 24)
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#define HW_AUDIOOUT_ANACTRL__SHORT_CM_STS (1 << 28)
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#define HW_AUDIOOUT_ANACLKCTRL (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0xe0))
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#define HW_AUDIOOUT_ANACLKCTRL__DACDIV_BP 0
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#define HW_AUDIOOUT_ANACLKCTRL__DACDIV_BM (7 << 0)
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#define HW_AUDIOOUT_ANACLKCTRL__CLKGATE (1 << 31)
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#define HW_AUDIOOUT_DATA (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0xf0))
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#define HW_AUDIOOUT_VERSION (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x200))
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void imx233_audioout_preinit(void);
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void imx233_audioout_postinit(void);
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void imx233_audioout_close(void);
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/* volume in half dB */
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void imx233_audioout_set_dac_vol(int vol_l, int vol_r);
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void imx233_audioout_set_hp_vol(int vol_l, int vol_r);
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/* frequency index, NOT the frequency itself */
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void imx233_audioout_set_freq(int fsel);
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/* select between DAC and Line1 */
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void imx233_audiout_select_hp_input(bool line1);
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#endif /* __audioout_imx233__ */
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