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author | Marcoen Hirschberg <marcoen@gmail.com> | 2007-04-19 10:46:50 +0000 |
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committer | Marcoen Hirschberg <marcoen@gmail.com> | 2007-04-19 10:46:50 +0000 |
commit | 15dfe87f9606a191707d5c7b3b33b21963510f53 (patch) | |
tree | 5c31520b84dc60aff6997eac6a7e8b4b3ec1127e /firmware/drivers/wm8731l.c | |
parent | f725ef12565a65d46ff2f9bd34eb3e19da7b763e (diff) | |
download | rockbox-15dfe87f9606a191707d5c7b3b33b21963510f53.tar.gz rockbox-15dfe87f9606a191707d5c7b3b33b21963510f53.zip |
move audio drivers together into a subdir
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13209 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/drivers/wm8731l.c')
-rw-r--r-- | firmware/drivers/wm8731l.c | 305 |
1 files changed, 0 insertions, 305 deletions
diff --git a/firmware/drivers/wm8731l.c b/firmware/drivers/wm8731l.c deleted file mode 100644 index 62b1b6a81e..0000000000 --- a/firmware/drivers/wm8731l.c +++ /dev/null @@ -1,305 +0,0 @@ -/*************************************************************************** - * __________ __ ___. - * Open \______ \ ____ ____ | | _\_ |__ _______ ___ - * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / - * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < - * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ - * \/ \/ \/ \/ \/ - * $Id$ - * - * Driver for WM8731L audio codec - * - * Based on code from the ipodlinux project - http://ipodlinux.org/ - * Adapted for Rockbox in January 2006 - * - * Original file: linux/arch/armnommu/mach-ipod/audio.c - * - * Copyright (c) 2003-2005 Bernard Leach (leachbj@bouncycastle.org) - * - * All files in this archive are subject to the GNU General Public License. - * See the file COPYING in the source tree root for full license agreement. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - ****************************************************************************/ -#include "lcd.h" -#include "cpu.h" -#include "kernel.h" -#include "thread.h" -#include "power.h" -#include "debug.h" -#include "system.h" -#include "sprintf.h" -#include "button.h" -#include "string.h" -#include "file.h" -#include "buffer.h" -#include "audio.h" - -#include "wmcodec.h" -#include "wm8731l.h" -#include "i2s.h" - -#define IPOD_PCM_LEVEL 0x65 /* -6dB */ - -/* use zero crossing to reduce clicks during volume changes */ -#define VOLUME_ZC_WAIT (1<<7) - -/* convert tenth of dB volume (-730..60) to master volume register value */ -int tenthdb2master(int db) -{ - /* +6 to -73dB 1dB steps (plus mute == 80levels) 7bits */ - /* 1111111 == +6dB (0x7f) */ - /* 1111001 == 0dB (0x79) */ - /* 0110000 == -73dB (0x30 */ - /* 0101111 == mute (0x2f) */ - - if (db < VOLUME_MIN) { - return 0x2f; - } else { - return((db/10)+0x30+73); - } -} - -/* convert tenth of dB volume (-780..0) to mixer volume register value */ -int tenthdb2mixer(int db) -{ - if (db < -660) /* 1.5 dB steps */ - return (2640 - db) / 15; - else if (db < -600) /* 0.75 dB steps */ - return (990 - db) * 2 / 15; - else if (db < -460) /* 0.5 dB steps */ - return (460 - db) / 5; - else /* 0.25 dB steps */ - return -db * 2 / 5; -} - -int audiohw_mute(int mute) -{ - if (mute) - { - /* Set DACMU = 1 to soft-mute the audio DACs. */ - wmcodec_write(DACCTRL, 0x8); - } else { - /* Set DACMU = 0 to soft-un-mute the audio DACs. */ - wmcodec_write(DACCTRL, 0x0); - } - - return 0; -} - -/** From ipodLinux **/ -static void codec_set_active(int active) -{ - /* set active to 0x0 or 0x1 */ - if (active) { - wmcodec_write(ACTIVECTRL, 0x01); - } else { - wmcodec_write(ACTIVECTRL, 0x00); - } -} - - -/* Silently enable / disable audio output */ -void audiohw_enable_output(bool enable) -{ - if (enable) - { - /* reset the I2S controller into known state */ - i2s_reset(); - - wmcodec_write(RESET, 0x0); /*Reset*/ - - codec_set_active(0x0); - -#ifdef HAVE_WM8721 - /* DACSEL=1 */ - wmcodec_write(0x4, 0x10); -#elif defined HAVE_WM8731 - /* DACSEL=1, BYPASS=1 */ - wmcodec_write(0x4, 0x18); -#endif - - /* set power register to POWEROFF=0 on OUTPD=0, DACPD=0 */ - wmcodec_write(PWRMGMT, 0x67); - - /* BCLKINV=0(Dont invert BCLK) MS=1(Enable Master) LRSWAP=0 LRP=0 */ - /* IWL=00(16 bit) FORMAT=10(I2S format) */ - wmcodec_write(AINTFCE, 0x42); - - audiohw_set_sample_rate(WM8731L_44100HZ); - - /* set the volume to -6dB */ - wmcodec_write(LOUTVOL, IPOD_PCM_LEVEL); - wmcodec_write(ROUTVOL, 0x100 | IPOD_PCM_LEVEL); - - /* ACTIVE=1 */ - codec_set_active(1); - - /* 5. Set DACMU = 0 to soft-un-mute the audio DACs. */ - wmcodec_write(DACCTRL, 0x0); - -#if defined(IRIVER_H10) || defined(IRIVER_H10_5GB) - /* We need to enable bit 4 of GPIOL for output for sound on H10 */ - GPIOL_OUTPUT_VAL |= 0x10; -#endif - audiohw_mute(0); - } else { -#if defined(IRIVER_H10) || defined(IRIVER_H10_5GB) - /* We need to disable bit 4 of GPIOL to disable sound on H10 */ - GPIOL_OUTPUT_VAL &= ~0x10; -#endif - audiohw_mute(1); - } -} - -int audiohw_set_master_vol(int vol_l, int vol_r) -{ - /* +6 to -73dB 1dB steps (plus mute == 80levels) 7bits */ - /* 1111111 == +6dB */ - /* 1111001 == 0dB */ - /* 0110000 == -73dB */ - /* 0101111 == mute (0x2f) */ - - wmcodec_write(LOUTVOL, VOLUME_ZC_WAIT | vol_l); - wmcodec_write(ROUTVOL, VOLUME_ZC_WAIT | vol_r); - - return 0; -} - -int audiohw_set_mixer_vol(int channel1, int channel2) -{ - (void)channel1; - (void)channel2; - - return 0; -} - -void audiohw_set_bass(int value) -{ - (void)value; -} - -void audiohw_set_treble(int value) -{ - (void)value; -} - -/* Nice shutdown of WM8731 codec */ -void audiohw_close(void) -{ - /* set DACMU=1 DEEMPH=0 */ - wmcodec_write(DACCTRL, 0x8); - - /* ACTIVE=0 */ - codec_set_active(0x0); - - /* line in mute left & right*/ - wmcodec_write(LINVOL, 0x100 | 0x80); - - /* set DACSEL=0, MUTEMIC=1 */ - wmcodec_write(0x4, 0x2); - - /* set POWEROFF=0 OUTPD=0 DACPD=1 */ - wmcodec_write(PWRMGMT, 0x6f); - - /* set POWEROFF=1 OUTPD=1 DACPD=1 */ - wmcodec_write(PWRMGMT, 0xff); -} - -/* Change the order of the noise shaper, 5th order is recommended above 32kHz */ -void audiohw_set_nsorder(int order) -{ - (void)order; -} - -void audiohw_set_sample_rate(int sampling_control) -{ - codec_set_active(0x0); - wmcodec_write(SAMPCTRL, sampling_control); - codec_set_active(0x1); -} - -void audiohw_enable_recording(bool source_mic) -{ - static int line_level = 0x17; - static int mic_boost = true; - codec_set_active(0x0); - - /* set BCLKINV=0(Dont invert BCLK) MS=1(Enable Master) LRSWAP=0 - * LRP=0 IWL=00(16 bit) FORMAT=10(I2S format) */ - wmcodec_write(AINTFCE, 0x42); - - wmcodec_write(LOUTVOL, 0x0); /* headphone mute left */ - wmcodec_write(ROUTVOL, 0x0); /* headphone mute right */ - - - if(source_mic){ - wmcodec_write(LINVOL, 0x80); /* line in mute left */ - wmcodec_write(RINVOL, 0x80); /* line in mute right */ - - - if (mic_boost) { - wmcodec_write(AAPCTRL, 0x5); /* INSEL=mic, MIC_BOOST=enable */ - } else { - wmcodec_write(AAPCTRL, 0x4); /* INSEL=mic */ - } - } else { - if (line_level == 0) { - wmcodec_write(LINVOL, 0x80); - wmcodec_write(RINVOL, 0x80); - } else { - wmcodec_write(LINVOL, line_level); - wmcodec_write(RINVOL, line_level); - } - wmcodec_write(AAPCTRL, 0xa); /* BY PASS, mute mic, INSEL=line in */ - } - - /* disable ADC high pass filter, mute dac */ - wmcodec_write(DACCTRL, 0x9); - - /* power on (PWR_OFF=0) */ - if(source_mic){ - /* CLKOUTPD OSCPD OUTPD DACPD LINEINPD */ - wmcodec_write(PWRMGMT, 0x79); - } else { - wmcodec_write(PWRMGMT, 0x7a); /* MICPD */ - } - - codec_set_active(0x1); -} - -void audiohw_disable_recording(void) -{ - /* set DACMU=1 DEEMPH=0 */ - wmcodec_write(DACCTRL, 0x8); - - /* ACTIVE=0 */ - codec_set_active(0x0); - - /* line in mute left & right*/ - wmcodec_write(LINVOL, 0x80); - wmcodec_write(RINVOL, 0x80); - - /* set DACSEL=0, MUTEMIC=1 */ - wmcodec_write(AAPCTRL, 0x2); - - /* set POWEROFF=0 OUTPD=0 DACPD=1 */ - wmcodec_write(PWRMGMT, 0x6f); - - /* set POWEROFF=1 OUTPD=1 DACPD=1 */ - wmcodec_write(PWRMGMT, 0xff); -} - -void audiohw_set_recvol(int left, int right, int type) -{ - (void)left; - (void)right; - (void)type; -} - -void audiohw_set_monitor(int enable) -{ - (void)enable; -} |