/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * 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 "logf.h" #include "system.h" #include "string.h" #include "audio.h" #include "wmcodec.h" #include "audiohw.h" #include "i2s.h" /* Register addresses as per datasheet Rev.4.4 */ #define RESET 0x00 #define PWRMGMT1 0x01 #define PWRMGMT2 0x02 #define PWRMGMT3 0x03 #define AINTFCE 0x04 #define COMPAND 0x05 #define CLKGEN 0x06 #define SRATECTRL 0x07 #define GPIOCTL 0x08 #define JACKDETECT0 0x09 #define DACCTRL 0x0a #define LDACVOL 0x0b #define RDACVOL 0x0c #define JACKDETECT1 0x0d #define ADCCTL 0x0e #define LADCVOL 0x0f #define RADCVOL 0x10 #define EQ1 0x12 #define EQ2 0x13 #define EQ3 0x14 #define EQ4 0x15 #define EQ5 0x16 #define EQ_GAIN_MASK 0x001f #define EQ_CUTOFF_MASK 0x0060 #define EQ_GAIN_VALUE(x) (((-x) + 12) & 0x1f) #define EQ_CUTOFF_VALUE(x) ((((x) - 1) & 0x03) << 5) #define CLASSDCTL 0x17 #define DACLIMIT1 0x18 #define DACLIMIT2 0x19 #define NOTCH1 0x1b #define NOTCH2 0x1c #define NOTCH3 0x1d #define NOTCH4 0x1e #define ALCCTL1 0x20 #define ALCCTL2 0x21 #define ALCCTL3 0x22 #define NOISEGATE 0x23 #define PLLN 0x24 #define PLLK1 0x25 #define PLLK2 0x26 #define PLLK3 0x27 #define THREEDCTL 0x29 #define OUT4ADC 0x2a #define BEEPCTRL 0x2b #define INCTRL 0x2c #define LINPGAGAIN 0x2d #define RINPGAGAIN 0x2e #define LADCBOOST 0x2f #define RADCBOOST 0x30 #define OUTCTRL 0x31 #define LOUTMIX 0x32 #define ROUTMIX 0x33 #define LOUT1VOL 0x34 #define ROUT1VOL 0x35 #define LOUT2VOL 0x36 #define ROUT2VOL 0x37 #define OUT3MIX 0x38 #define OUT4MIX 0x39 #define BIASCTL 0x3d /* Register settings for the supported samplerates: */ #define WM8985_8000HZ 0x4d #define WM8985_12000HZ 0x61 #define WM8985_16000HZ 0x55 #define WM8985_22050HZ 0x77 #define WM8985_24000HZ 0x79 #define WM8985_32000HZ 0x59 #define WM8985_44100HZ 0x63 #define WM8985_48000HZ 0x41 #define WM8985_88200HZ 0x7f #define WM8985_96000HZ 0x5d const struct sound_settings_info audiohw_settings[] = { [SOUND_VOLUME] = {"dB", 0, 1, -58, 6, -25}, [SOUND_BASS] = {"dB", 0, 1, -12, 12, 0}, [SOUND_TREBLE] = {"dB", 0, 1, -12, 12, 0}, [SOUND_BALANCE] = {"%", 0, 1,-100, 100, 0}, [SOUND_CHANNELS] = {"", 0, 1, 0, 5, 0}, [SOUND_STEREO_WIDTH] = {"%", 0, 5, 0, 250, 100}, [SOUND_LEFT_GAIN] = {"dB", 1, 1,-128, 96, 0}, [SOUND_RIGHT_GAIN] = {"dB", 1, 1,-128, 96, 0}, [SOUND_MIC_GAIN] = {"dB", 1, 1,-128, 108, 16}, [SOUND_BASS_CUTOFF] = {"", 0, 1, 1, 4, 1}, [SOUND_TREBLE_CUTOFF] = {"", 0, 1, 1, 4, 1}, }; /* shadow registers */ unsigned int eq1_reg; unsigned int eq5_reg; /* convert tenth of dB volume (-57..6) to master volume register value */ int tenthdb2master(int db) { /* +6 to -57dB in 1dB steps == 64 levels = 6 bits */ /* 0111111 == +6dB (0x3f) = 63) */ /* 0111001 == 0dB (0x39) = 57) */ /* 0000001 == -56dB (0x01) = */ /* 0000000 == -57dB (0x00) */ /* 1000000 == Mute (0x40) */ if (db < VOLUME_MIN) { return 0x40; } else { return((db/10)+57); } } /* 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; } /* Silently enable / disable audio output */ void audiohw_enable_output(bool enable) { if (enable) { /* TODO: reset the I2S controller into known state */ //i2s_reset(); /* TODO: Review the power-up sequence to prevent pops (see datasheet) */ wmcodec_write(RESET, 0x1ff); /*Reset*/ wmcodec_write(PWRMGMT1, 0x2b); wmcodec_write(PWRMGMT2, 0x180); wmcodec_write(PWRMGMT3, 0x6f); wmcodec_write(AINTFCE, 0x10); wmcodec_write(CLKCTRL, 0x49); wmcodec_write(OUTCTRL, 1); /* The iPod can handle multiple frequencies, but fix at 44.1KHz for now */ audiohw_set_sample_rate(WM8985_44100HZ); wmcodec_write(LOUTMIX,0x1); /* Enable mixer */ wmcodec_write(ROUTMIX,0x1); /* Enable mixer */ audiohw_mute(0); } else { audiohw_mute(1); } } void audiohw_set_master_vol(int vol_l, int vol_r) { /* OUT1 */ wmcodec_write(LOUT1VOL, 0x080 | vol_l); wmcodec_write(ROUT1VOL, 0x180 | vol_r); } void audiohw_set_lineout_vol(int vol_l, int vol_r) { /* OUT2 */ wmcodec_write(LOUT2VOL, vol_l); wmcodec_write(ROUT2VOL, 0x100 | vol_r); } void audiohw_set_mixer_vol(int channel1, int channel2) { (void)channel1; (void)channel2; } void audiohw_set_bass(int value) { eq1_reg = (eq1_reg & ~EQ_GAIN_MASK) | EQ_GAIN_VALUE(value); wmcodec_write(EQ1, 0x100 | eq1_reg); } void audiohw_set_bass_cutoff(int value) { eq1_reg = (eq1_reg & ~EQ_CUTOFF_MASK) | EQ_CUTOFF_VALUE(value); wmcodec_write(EQ1, 0x100 | eq1_reg); } void audiohw_set_treble(int value) { eq5_reg = (eq5_reg & ~EQ_GAIN_MASK) | EQ_GAIN_VALUE(value); wmcodec_write(EQ5, eq5_reg); } void audiohw_set_treble_cutoff(int value) { eq5_reg = (eq5_reg & ~EQ_CUTOFF_MASK) | EQ_CUTOFF_VALUE(value); wmcodec_write(EQ5, eq5_reg); } void audiohw_mute(bool mute) { if (mute) { /* Set DACMU = 1 to soft-mute the audio DACs. */ wmcodec_write(DACCTRL, 0x40); } else { /* Set DACMU = 0 to soft-un-mute the audio DACs. */ wmcodec_write(DACCTRL, 0x0); } } /* Nice shutdown of WM8758 codec */ void audiohw_close(void) { audiohw_mute(1); wmcodec_write(PWRMGMT3, 0x0); wmcodec_write(PWRMGMT1, 0x0); wmcodec_write(PWRMGMT2, 0x40); } /* Change the order of the noise shaper, 5th order is recommended above 32kHz */ void audiohw_set_nsorder(int order) { (void)order; } /* Note: Disable output before calling this function */ void audiohw_set_sample_rate(int sampling_control) { /**** We force 44.1KHz for now. ****/ (void)sampling_control; /* set clock div */ wmcodec_write(CLKCTRL, 1 | (0 << 2) | (2 << 5)); /* setup PLL for MHZ=11.2896 */ wmcodec_write(PLLN, (1 << 4) | 0x7); wmcodec_write(PLLK1, 0x21); wmcodec_write(PLLK2, 0x161); wmcodec_write(PLLK3, 0x26); /* set clock div */ wmcodec_write(CLKCTRL, 1 | (1 << 2) | (2 << 5) | (1 << 8)); /* set srate */ wmcodec_write(SRATECTRL, (0 << 1)); } void audiohw_enable_recording(bool source_mic) { (void)source_mic; /* We only have a line-in (I think) */ /* TODO: reset the I2S controller into known state */ //i2s_reset(); wmcodec_write(RESET, 0x1ff); /*Reset*/ wmcodec_write(PWRMGMT1, 0x2b); wmcodec_write(PWRMGMT2, 0x18f); /* Enable ADC - 0x0c enables left/right PGA input, and 0x03 turns on power to the ADCs */ wmcodec_write(PWRMGMT3, 0x6f); wmcodec_write(AINTFCE, 0x10); wmcodec_write(CLKCTRL, 0x49); wmcodec_write(OUTCTRL, 1); /* The iPod can handle multiple frequencies, but fix at 44.1KHz for now */ audiohw_set_sample_rate(WM8985_44100HZ); wmcodec_write(INCTRL,0x44); /* Connect L2 and R2 inputs */ /* Set L2/R2_2BOOSTVOL to 0db (bits 4-6) */ /* 000 = disabled 001 = -12dB 010 = -9dB 011 = -6dB 100 = -3dB 101 = 0dB 110 = 3dB 111 = 6dB */ wmcodec_write(LADCBOOST,0x50); wmcodec_write(RADCBOOST,0x50); /* Set L/R input PGA Volume to 0db */ // wm8758_write(LINPGAVOL,0x3f); // wm8758_write(RINPGAVOL,0x13f); /* Enable monitoring */ wmcodec_write(LOUTMIX,0x17); /* Enable output mixer - BYPL2LMIX @ 0db*/ wmcodec_write(ROUTMIX,0x17); /* Enable output mixer - BYPR2RMIX @ 0db*/ audiohw_mute(0); } void audiohw_disable_recording(void) { audiohw_mute(1); wmcodec_write(PWRMGMT3, 0x0); wmcodec_write(PWRMGMT1, 0x0); wmcodec_write(PWRMGMT2, 0x40); } void audiohw_set_recvol(int left, int right, int type) { (void)left; (void)right; (void)type; } void audiohw_set_monitor(bool enable) { (void)enable; }