281 lines
6.9 KiB
C
281 lines
6.9 KiB
C
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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) 2008 by Maurus Cuelenaere
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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 "config.h"
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#include "jz4740.h"
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static unsigned short codec_volume;
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static unsigned short codec_base_gain;
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static unsigned short codec_mic_gain;
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static bool HP_on_off_flag;
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static int HP_register_value;
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static int IS_WRITE_PCM;
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static void i2s_codec_clear(void)
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{
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REG_ICDC_CDCCR1 = (ICDC_CDCCR1_SW2ON | ICDC_CDCCR1_PDVR | ICDC_CDCCR1_PDVRA | ICDC_CDCCR1_VRCGL |
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ICDC_CDCCR1_VRCGH | ICDC_CDCCR1_HPOV0 | ICDC_CDCCR1_PDHPM | ICDC_CDCCR1_PDHP |
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ICDC_CDCCR1_SUSPD | ICDC_CDCCR1_RST);
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}
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static void i2s_codec_init(void)
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{
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__aic_select_i2s();
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__i2s_internal_codec();
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__aic_enable();
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__i2s_set_oss_sample_size(16);
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REG_ICDC_CDCCR1 = (ICDC_CDCCR1_SW2ON | ICDC_CDCCR1_PDVR | ICDC_CDCCR1_PDVRA | ICDC_CDCCR1_VRCGL |
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ICDC_CDCCR1_VRCGH | ICDC_CDCCR1_HPOV0 | ICDC_CDCCR1_PDHPM | ICDC_CDCCR1_PDHP |
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ICDC_CDCCR1_SUSPD | ICDC_CDCCR1_RST); /* reset */
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udelay(10);
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REG_ICDC_CDCCR1 = (ICDC_CDCCR1_SW2ON | ICDC_CDCCR1_PDVR | ICDC_CDCCR1_PDVRA | ICDC_CDCCR1_VRCGL |
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ICDC_CDCCR1_VRCGH | ICDC_CDCCR1_HPOV0 | ICDC_CDCCR1_PDHPM | ICDC_CDCCR1_PDHP |
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ICDC_CDCCR1_SUSPD | ICDC_CDCCR1_RST);
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//REG_ICDC_CDCCR2 = (ICDC_CDCCR2_AINVOL(ICDC_CDCCR2_AINVOL_DB(0)) | ICDC_CDCCR2_SMPR(ICDC_CDCCR2_SMPR_48) |
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REG_ICDC_CDCCR2 = (ICDC_CDCCR2_AINVOL(23) | ICDC_CDCCR2_SMPR(ICDC_CDCCR2_SMPR_48) |
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ICDC_CDCCR2_HPVOL(ICDC_CDCCR2_HPVOL_6));
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HP_on_off_flag = 0; /* HP is off */
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}
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static void i2s_codec_set_mic(unsigned short v) /* 0 <= v <= 100 */
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{
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v = v & 0xff;
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if(v < 0)
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v = 0;
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if(v > 100)
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v = 100;
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codec_mic_gain = 31 * v/100;
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REG_ICDC_CDCCR2 = ((REG_ICDC_CDCCR2 & ~(0x1f << 16)) | (codec_mic_gain << 16));
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}
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static void i2s_codec_set_bass(unsigned short v) /* 0 <= v <= 100 */
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{
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v = v & 0xff;
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if(v < 0)
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v = 0;
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if(v > 100)
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v = 100;
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if(v < 25)
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codec_base_gain = 0;
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if(v >= 25 && v < 50)
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codec_base_gain = 1;
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if(v >= 50 && v < 75)
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codec_base_gain = 2;
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if(v >= 75 && v <= 100)
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codec_base_gain = 3;
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REG_ICDC_CDCCR2 = ((REG_ICDC_CDCCR2 & ~(0x3 << 4)) | (codec_base_gain << 4));
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}
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static void i2s_codec_set_volume(unsigned short v) /* 0 <= v <= 100 */
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{
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v = v & 0xff;
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if(v < 0)
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v = 0;
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if(v > 100)
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v = 100;
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if(v < 25)
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codec_volume = 0;
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if(v >= 25 && v < 50)
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codec_volume = 1;
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if(v >= 50 && v < 75)
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codec_volume = 2;
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if(v >= 75 && v <= 100)
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codec_volume = 3;
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REG_ICDC_CDCCR2 = ((REG_ICDC_CDCCR2 & ~(0x3)) | codec_volume);
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}
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static unsigned short i2s_codec_get_bass(void)
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{
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unsigned short val;
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int ret;
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if(codec_base_gain == 0)
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val = 0;
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if(codec_base_gain == 1)
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val = 25;
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if(codec_base_gain == 2)
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val = 50;
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if(codec_base_gain == 3)
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val = 75;
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ret = val << 8;
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val = val | ret;
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}
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static unsigned short i2s_codec_get_mic(void)
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{
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unsigned short val;
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int ret;
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val = 100 * codec_mic_gain / 31;
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ret = val << 8;
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val = val | ret;
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}
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static unsigned short i2s_codec_get_volume(void)
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{
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unsigned short val;
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int ret;
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if(codec_volume == 0)
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val = 0;
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if(codec_volume == 1)
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val = 25;
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if(codec_volume == 2)
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val = 50;
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if(codec_volume == 3)
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val = 75;
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ret = val << 8;
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val = val | ret;
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return val;
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}
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static void i2s_codec_set_samplerate(unsigned short rate)
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{
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unsigned short speed = 0;
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unsigned short val = 0;
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switch (rate)
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{
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case 8000:
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speed = 0;
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break;
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case 11025:
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speed = 1;
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break;
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case 12000:
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speed = 2;
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break;
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case 16000:
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speed = 3;
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break;
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case 22050:
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speed = 4;
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break;
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case 24000:
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speed = 5;
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break;
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case 32000:
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speed = 6;
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break;
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case 44100:
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speed = 7;
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break;
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case 48000:
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speed = 8;
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break;
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default:
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break;
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}
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REG_ICDC_CDCCR2 |= 0x00000f00;
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speed = speed << 8;
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speed |= 0xfffff0ff;
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REG_ICDC_CDCCR2 &= speed;
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}
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static void HP_turn_on(void)
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{
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//see 1.3.4.1
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REG_ICDC_CDCCR1 &= ~(ICDC_CDCCR1_SUSPD | ICDC_CDCCR1_RST); //set suspend 0
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mdelay(15);
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REG_ICDC_CDCCR1 &= ~(ICDC_CDCCR1_PDVR | ICDC_CDCCR1_VRCGL | ICDC_CDCCR1_VRCGH);
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REG_ICDC_CDCCR1 |= (ICDC_CDCCR1_EDAC | ICDC_CDCCR1_HPCG);
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mdelay(600);
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REG_ICDC_CDCCR1 &= ~(ICDC_CDCCR1_PDVRA | ICDC_CDCCR1_HPCG | ICDC_CDCCR1_PDHPM | ICDC_CDCCR1_PDHP);
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mdelay(2);
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HP_register_value = REG_ICDC_CDCCR1;
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//see 1.3.4.2
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/*REG_ICDC_CDCCR1 &= 0xfffffffc;
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mdelay(7);
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REG_ICDC_CDCCR1 |= 0x00040400;
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mdelay(15);
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REG_ICDC_CDCCR1 &= 0xfffbfbff;
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udelay(500);
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REG_ICDC_CDCCR1 &= 0xffe5fcff;
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REG_ICDC_CDCCR1 |= 0x01000000;
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mdelay(400);
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REG_ICDC_CDCCR1 &= 0xfffeffff;
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mdelay(7);
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HP_register_value = REG_ICDC_CDCCR1;*/
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//see 1.3.4.3
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}
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static void HP_turn_off(void)
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{
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//see 1.3.4.1
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mdelay(2);
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REG_ICDC_CDCCR1 = HP_register_value;
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REG_ICDC_CDCCR1 |= 0x001b0300;
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REG_ICDC_CDCCR1 &= 0xfeffffff;
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mdelay(15);
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REG_ICDC_CDCCR1 |= 0x00000002;//set suspend 1
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//see 1.3.4.2
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/*mdelay(4);
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REG_ICDC_CDCCR1 = HP_register_value;
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REG_ICDC_CDCCR1 |= 0x001b0300;
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REG_ICDC_CDCCR1 &= 0xfeffffff;
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mdelay(4);
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REG_ICDC_CDCCR1 |= 0x00000400;
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mdelay(15);
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REG_ICDC_CDCCR1 &= 0xfffffdff;
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mdelay(7);
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REG_ICDC_CDCCR1 |= 0x00000002;*/
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//see 1.3.4.3
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}
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void audiohw_mute(bool mute)
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{
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if(mute)
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REG_ICDC_CDCCR1 |= ICDC_CDCCR1_HPMUTE;
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else
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REG_ICDC_CDCCR1 &= ~ICDC_CDCCR1_HPMUTE;
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}
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void audiohw_preinit(void)
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{
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i2s_reset();
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}
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void audiohw_postinit(void)
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{
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audiohw_mute(false);
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}
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