| /* |
| * wm8750.c -- WM8750 ALSA SoC audio driver |
| * |
| * Copyright 2005 Openedhand Ltd. |
| * |
| * Author: Richard Purdie <richard@openedhand.com> |
| * |
| * Based on WM8753.c |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/init.h> |
| #include <linux/delay.h> |
| #include <linux/pm.h> |
| #include <linux/i2c.h> |
| #include <linux/platform_device.h> |
| #include <linux/spi/spi.h> |
| #include <linux/slab.h> |
| #include <sound/core.h> |
| #include <sound/pcm.h> |
| #include <sound/pcm_params.h> |
| #include <sound/soc.h> |
| #include <sound/initval.h> |
| |
| #include "wm8750.h" |
| |
| /* |
| * wm8750 register cache |
| * We can't read the WM8750 register space when we |
| * are using 2 wire for device control, so we cache them instead. |
| */ |
| static const u16 wm8750_reg[] = { |
| 0x0097, 0x0097, 0x0079, 0x0079, /* 0 */ |
| 0x0000, 0x0008, 0x0000, 0x000a, /* 4 */ |
| 0x0000, 0x0000, 0x00ff, 0x00ff, /* 8 */ |
| 0x000f, 0x000f, 0x0000, 0x0000, /* 12 */ |
| 0x0000, 0x007b, 0x0000, 0x0032, /* 16 */ |
| 0x0000, 0x00c3, 0x00c3, 0x00c0, /* 20 */ |
| 0x0000, 0x0000, 0x0000, 0x0000, /* 24 */ |
| 0x0000, 0x0000, 0x0000, 0x0000, /* 28 */ |
| 0x0000, 0x0000, 0x0050, 0x0050, /* 32 */ |
| 0x0050, 0x0050, 0x0050, 0x0050, /* 36 */ |
| 0x0079, 0x0079, 0x0079, /* 40 */ |
| }; |
| |
| /* codec private data */ |
| struct wm8750_priv { |
| unsigned int sysclk; |
| enum snd_soc_control_type control_type; |
| }; |
| |
| #define wm8750_reset(c) snd_soc_write(c, WM8750_RESET, 0) |
| |
| /* |
| * WM8750 Controls |
| */ |
| static const char *wm8750_bass[] = {"Linear Control", "Adaptive Boost"}; |
| static const char *wm8750_bass_filter[] = { "130Hz @ 48kHz", "200Hz @ 48kHz" }; |
| static const char *wm8750_treble[] = {"8kHz", "4kHz"}; |
| static const char *wm8750_3d_lc[] = {"200Hz", "500Hz"}; |
| static const char *wm8750_3d_uc[] = {"2.2kHz", "1.5kHz"}; |
| static const char *wm8750_3d_func[] = {"Capture", "Playback"}; |
| static const char *wm8750_alc_func[] = {"Off", "Right", "Left", "Stereo"}; |
| static const char *wm8750_ng_type[] = {"Constant PGA Gain", |
| "Mute ADC Output"}; |
| static const char *wm8750_line_mux[] = {"Line 1", "Line 2", "Line 3", "PGA", |
| "Differential"}; |
| static const char *wm8750_pga_sel[] = {"Line 1", "Line 2", "Line 3", |
| "Differential"}; |
| static const char *wm8750_out3[] = {"VREF", "ROUT1 + Vol", "MonoOut", |
| "ROUT1"}; |
| static const char *wm8750_diff_sel[] = {"Line 1", "Line 2"}; |
| static const char *wm8750_adcpol[] = {"Normal", "L Invert", "R Invert", |
| "L + R Invert"}; |
| static const char *wm8750_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"}; |
| static const char *wm8750_mono_mux[] = {"Stereo", "Mono (Left)", |
| "Mono (Right)", "Digital Mono"}; |
| |
| static const struct soc_enum wm8750_enum[] = { |
| SOC_ENUM_SINGLE(WM8750_BASS, 7, 2, wm8750_bass), |
| SOC_ENUM_SINGLE(WM8750_BASS, 6, 2, wm8750_bass_filter), |
| SOC_ENUM_SINGLE(WM8750_TREBLE, 6, 2, wm8750_treble), |
| SOC_ENUM_SINGLE(WM8750_3D, 5, 2, wm8750_3d_lc), |
| SOC_ENUM_SINGLE(WM8750_3D, 6, 2, wm8750_3d_uc), |
| SOC_ENUM_SINGLE(WM8750_3D, 7, 2, wm8750_3d_func), |
| SOC_ENUM_SINGLE(WM8750_ALC1, 7, 4, wm8750_alc_func), |
| SOC_ENUM_SINGLE(WM8750_NGATE, 1, 2, wm8750_ng_type), |
| SOC_ENUM_SINGLE(WM8750_LOUTM1, 0, 5, wm8750_line_mux), |
| SOC_ENUM_SINGLE(WM8750_ROUTM1, 0, 5, wm8750_line_mux), |
| SOC_ENUM_SINGLE(WM8750_LADCIN, 6, 4, wm8750_pga_sel), /* 10 */ |
| SOC_ENUM_SINGLE(WM8750_RADCIN, 6, 4, wm8750_pga_sel), |
| SOC_ENUM_SINGLE(WM8750_ADCTL2, 7, 4, wm8750_out3), |
| SOC_ENUM_SINGLE(WM8750_ADCIN, 8, 2, wm8750_diff_sel), |
| SOC_ENUM_SINGLE(WM8750_ADCDAC, 5, 4, wm8750_adcpol), |
| SOC_ENUM_SINGLE(WM8750_ADCDAC, 1, 4, wm8750_deemph), |
| SOC_ENUM_SINGLE(WM8750_ADCIN, 6, 4, wm8750_mono_mux), /* 16 */ |
| |
| }; |
| |
| static const struct snd_kcontrol_new wm8750_snd_controls[] = { |
| |
| SOC_DOUBLE_R("Capture Volume", WM8750_LINVOL, WM8750_RINVOL, 0, 63, 0), |
| SOC_DOUBLE_R("Capture ZC Switch", WM8750_LINVOL, WM8750_RINVOL, 6, 1, 0), |
| SOC_DOUBLE_R("Capture Switch", WM8750_LINVOL, WM8750_RINVOL, 7, 1, 1), |
| |
| SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8750_LOUT1V, |
| WM8750_ROUT1V, 7, 1, 0), |
| SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8750_LOUT2V, |
| WM8750_ROUT2V, 7, 1, 0), |
| |
| SOC_ENUM("Playback De-emphasis", wm8750_enum[15]), |
| |
| SOC_ENUM("Capture Polarity", wm8750_enum[14]), |
| SOC_SINGLE("Playback 6dB Attenuate", WM8750_ADCDAC, 7, 1, 0), |
| SOC_SINGLE("Capture 6dB Attenuate", WM8750_ADCDAC, 8, 1, 0), |
| |
| SOC_DOUBLE_R("PCM Volume", WM8750_LDAC, WM8750_RDAC, 0, 255, 0), |
| |
| SOC_ENUM("Bass Boost", wm8750_enum[0]), |
| SOC_ENUM("Bass Filter", wm8750_enum[1]), |
| SOC_SINGLE("Bass Volume", WM8750_BASS, 0, 15, 1), |
| |
| SOC_SINGLE("Treble Volume", WM8750_TREBLE, 0, 15, 1), |
| SOC_ENUM("Treble Cut-off", wm8750_enum[2]), |
| |
| SOC_SINGLE("3D Switch", WM8750_3D, 0, 1, 0), |
| SOC_SINGLE("3D Volume", WM8750_3D, 1, 15, 0), |
| SOC_ENUM("3D Lower Cut-off", wm8750_enum[3]), |
| SOC_ENUM("3D Upper Cut-off", wm8750_enum[4]), |
| SOC_ENUM("3D Mode", wm8750_enum[5]), |
| |
| SOC_SINGLE("ALC Capture Target Volume", WM8750_ALC1, 0, 7, 0), |
| SOC_SINGLE("ALC Capture Max Volume", WM8750_ALC1, 4, 7, 0), |
| SOC_ENUM("ALC Capture Function", wm8750_enum[6]), |
| SOC_SINGLE("ALC Capture ZC Switch", WM8750_ALC2, 7, 1, 0), |
| SOC_SINGLE("ALC Capture Hold Time", WM8750_ALC2, 0, 15, 0), |
| SOC_SINGLE("ALC Capture Decay Time", WM8750_ALC3, 4, 15, 0), |
| SOC_SINGLE("ALC Capture Attack Time", WM8750_ALC3, 0, 15, 0), |
| SOC_SINGLE("ALC Capture NG Threshold", WM8750_NGATE, 3, 31, 0), |
| SOC_ENUM("ALC Capture NG Type", wm8750_enum[4]), |
| SOC_SINGLE("ALC Capture NG Switch", WM8750_NGATE, 0, 1, 0), |
| |
| SOC_SINGLE("Left ADC Capture Volume", WM8750_LADC, 0, 255, 0), |
| SOC_SINGLE("Right ADC Capture Volume", WM8750_RADC, 0, 255, 0), |
| |
| SOC_SINGLE("ZC Timeout Switch", WM8750_ADCTL1, 0, 1, 0), |
| SOC_SINGLE("Playback Invert Switch", WM8750_ADCTL1, 1, 1, 0), |
| |
| SOC_SINGLE("Right Speaker Playback Invert Switch", WM8750_ADCTL2, 4, 1, 0), |
| |
| /* Unimplemented */ |
| /* ADCDAC Bit 0 - ADCHPD */ |
| /* ADCDAC Bit 4 - HPOR */ |
| /* ADCTL1 Bit 2,3 - DATSEL */ |
| /* ADCTL1 Bit 4,5 - DMONOMIX */ |
| /* ADCTL1 Bit 6,7 - VSEL */ |
| /* ADCTL2 Bit 2 - LRCM */ |
| /* ADCTL2 Bit 3 - TRI */ |
| /* ADCTL3 Bit 5 - HPFLREN */ |
| /* ADCTL3 Bit 6 - VROI */ |
| /* ADCTL3 Bit 7,8 - ADCLRM */ |
| /* ADCIN Bit 4 - LDCM */ |
| /* ADCIN Bit 5 - RDCM */ |
| |
| SOC_DOUBLE_R("Mic Boost", WM8750_LADCIN, WM8750_RADCIN, 4, 3, 0), |
| |
| SOC_DOUBLE_R("Bypass Left Playback Volume", WM8750_LOUTM1, |
| WM8750_LOUTM2, 4, 7, 1), |
| SOC_DOUBLE_R("Bypass Right Playback Volume", WM8750_ROUTM1, |
| WM8750_ROUTM2, 4, 7, 1), |
| SOC_DOUBLE_R("Bypass Mono Playback Volume", WM8750_MOUTM1, |
| WM8750_MOUTM2, 4, 7, 1), |
| |
| SOC_SINGLE("Mono Playback ZC Switch", WM8750_MOUTV, 7, 1, 0), |
| |
| SOC_DOUBLE_R("Headphone Playback Volume", WM8750_LOUT1V, WM8750_ROUT1V, |
| 0, 127, 0), |
| SOC_DOUBLE_R("Speaker Playback Volume", WM8750_LOUT2V, WM8750_ROUT2V, |
| 0, 127, 0), |
| |
| SOC_SINGLE("Mono Playback Volume", WM8750_MOUTV, 0, 127, 0), |
| |
| }; |
| |
| /* |
| * DAPM Controls |
| */ |
| |
| /* Left Mixer */ |
| static const struct snd_kcontrol_new wm8750_left_mixer_controls[] = { |
| SOC_DAPM_SINGLE("Playback Switch", WM8750_LOUTM1, 8, 1, 0), |
| SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_LOUTM1, 7, 1, 0), |
| SOC_DAPM_SINGLE("Right Playback Switch", WM8750_LOUTM2, 8, 1, 0), |
| SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_LOUTM2, 7, 1, 0), |
| }; |
| |
| /* Right Mixer */ |
| static const struct snd_kcontrol_new wm8750_right_mixer_controls[] = { |
| SOC_DAPM_SINGLE("Left Playback Switch", WM8750_ROUTM1, 8, 1, 0), |
| SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_ROUTM1, 7, 1, 0), |
| SOC_DAPM_SINGLE("Playback Switch", WM8750_ROUTM2, 8, 1, 0), |
| SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_ROUTM2, 7, 1, 0), |
| }; |
| |
| /* Mono Mixer */ |
| static const struct snd_kcontrol_new wm8750_mono_mixer_controls[] = { |
| SOC_DAPM_SINGLE("Left Playback Switch", WM8750_MOUTM1, 8, 1, 0), |
| SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_MOUTM1, 7, 1, 0), |
| SOC_DAPM_SINGLE("Right Playback Switch", WM8750_MOUTM2, 8, 1, 0), |
| SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_MOUTM2, 7, 1, 0), |
| }; |
| |
| /* Left Line Mux */ |
| static const struct snd_kcontrol_new wm8750_left_line_controls = |
| SOC_DAPM_ENUM("Route", wm8750_enum[8]); |
| |
| /* Right Line Mux */ |
| static const struct snd_kcontrol_new wm8750_right_line_controls = |
| SOC_DAPM_ENUM("Route", wm8750_enum[9]); |
| |
| /* Left PGA Mux */ |
| static const struct snd_kcontrol_new wm8750_left_pga_controls = |
| SOC_DAPM_ENUM("Route", wm8750_enum[10]); |
| |
| /* Right PGA Mux */ |
| static const struct snd_kcontrol_new wm8750_right_pga_controls = |
| SOC_DAPM_ENUM("Route", wm8750_enum[11]); |
| |
| /* Out 3 Mux */ |
| static const struct snd_kcontrol_new wm8750_out3_controls = |
| SOC_DAPM_ENUM("Route", wm8750_enum[12]); |
| |
| /* Differential Mux */ |
| static const struct snd_kcontrol_new wm8750_diffmux_controls = |
| SOC_DAPM_ENUM("Route", wm8750_enum[13]); |
| |
| /* Mono ADC Mux */ |
| static const struct snd_kcontrol_new wm8750_monomux_controls = |
| SOC_DAPM_ENUM("Route", wm8750_enum[16]); |
| |
| static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = { |
| SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0, |
| &wm8750_left_mixer_controls[0], |
| ARRAY_SIZE(wm8750_left_mixer_controls)), |
| SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0, |
| &wm8750_right_mixer_controls[0], |
| ARRAY_SIZE(wm8750_right_mixer_controls)), |
| SND_SOC_DAPM_MIXER("Mono Mixer", WM8750_PWR2, 2, 0, |
| &wm8750_mono_mixer_controls[0], |
| ARRAY_SIZE(wm8750_mono_mixer_controls)), |
| |
| SND_SOC_DAPM_PGA("Right Out 2", WM8750_PWR2, 3, 0, NULL, 0), |
| SND_SOC_DAPM_PGA("Left Out 2", WM8750_PWR2, 4, 0, NULL, 0), |
| SND_SOC_DAPM_PGA("Right Out 1", WM8750_PWR2, 5, 0, NULL, 0), |
| SND_SOC_DAPM_PGA("Left Out 1", WM8750_PWR2, 6, 0, NULL, 0), |
| SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8750_PWR2, 7, 0), |
| SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8750_PWR2, 8, 0), |
| |
| SND_SOC_DAPM_MICBIAS("Mic Bias", WM8750_PWR1, 1, 0), |
| SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8750_PWR1, 2, 0), |
| SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8750_PWR1, 3, 0), |
| |
| SND_SOC_DAPM_MUX("Left PGA Mux", WM8750_PWR1, 5, 0, |
| &wm8750_left_pga_controls), |
| SND_SOC_DAPM_MUX("Right PGA Mux", WM8750_PWR1, 4, 0, |
| &wm8750_right_pga_controls), |
| SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0, |
| &wm8750_left_line_controls), |
| SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0, |
| &wm8750_right_line_controls), |
| |
| SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8750_out3_controls), |
| SND_SOC_DAPM_PGA("Out 3", WM8750_PWR2, 1, 0, NULL, 0), |
| SND_SOC_DAPM_PGA("Mono Out 1", WM8750_PWR2, 2, 0, NULL, 0), |
| |
| SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0, |
| &wm8750_diffmux_controls), |
| SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0, |
| &wm8750_monomux_controls), |
| SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0, |
| &wm8750_monomux_controls), |
| |
| SND_SOC_DAPM_OUTPUT("LOUT1"), |
| SND_SOC_DAPM_OUTPUT("ROUT1"), |
| SND_SOC_DAPM_OUTPUT("LOUT2"), |
| SND_SOC_DAPM_OUTPUT("ROUT2"), |
| SND_SOC_DAPM_OUTPUT("MONO1"), |
| SND_SOC_DAPM_OUTPUT("OUT3"), |
| SND_SOC_DAPM_OUTPUT("VREF"), |
| |
| SND_SOC_DAPM_INPUT("LINPUT1"), |
| SND_SOC_DAPM_INPUT("LINPUT2"), |
| SND_SOC_DAPM_INPUT("LINPUT3"), |
| SND_SOC_DAPM_INPUT("RINPUT1"), |
| SND_SOC_DAPM_INPUT("RINPUT2"), |
| SND_SOC_DAPM_INPUT("RINPUT3"), |
| }; |
| |
| static const struct snd_soc_dapm_route audio_map[] = { |
| /* left mixer */ |
| {"Left Mixer", "Playback Switch", "Left DAC"}, |
| {"Left Mixer", "Left Bypass Switch", "Left Line Mux"}, |
| {"Left Mixer", "Right Playback Switch", "Right DAC"}, |
| {"Left Mixer", "Right Bypass Switch", "Right Line Mux"}, |
| |
| /* right mixer */ |
| {"Right Mixer", "Left Playback Switch", "Left DAC"}, |
| {"Right Mixer", "Left Bypass Switch", "Left Line Mux"}, |
| {"Right Mixer", "Playback Switch", "Right DAC"}, |
| {"Right Mixer", "Right Bypass Switch", "Right Line Mux"}, |
| |
| /* left out 1 */ |
| {"Left Out 1", NULL, "Left Mixer"}, |
| {"LOUT1", NULL, "Left Out 1"}, |
| |
| /* left out 2 */ |
| {"Left Out 2", NULL, "Left Mixer"}, |
| {"LOUT2", NULL, "Left Out 2"}, |
| |
| /* right out 1 */ |
| {"Right Out 1", NULL, "Right Mixer"}, |
| {"ROUT1", NULL, "Right Out 1"}, |
| |
| /* right out 2 */ |
| {"Right Out 2", NULL, "Right Mixer"}, |
| {"ROUT2", NULL, "Right Out 2"}, |
| |
| /* mono mixer */ |
| {"Mono Mixer", "Left Playback Switch", "Left DAC"}, |
| {"Mono Mixer", "Left Bypass Switch", "Left Line Mux"}, |
| {"Mono Mixer", "Right Playback Switch", "Right DAC"}, |
| {"Mono Mixer", "Right Bypass Switch", "Right Line Mux"}, |
| |
| /* mono out */ |
| {"Mono Out 1", NULL, "Mono Mixer"}, |
| {"MONO1", NULL, "Mono Out 1"}, |
| |
| /* out 3 */ |
| {"Out3 Mux", "VREF", "VREF"}, |
| {"Out3 Mux", "ROUT1 + Vol", "ROUT1"}, |
| {"Out3 Mux", "ROUT1", "Right Mixer"}, |
| {"Out3 Mux", "MonoOut", "MONO1"}, |
| {"Out 3", NULL, "Out3 Mux"}, |
| {"OUT3", NULL, "Out 3"}, |
| |
| /* Left Line Mux */ |
| {"Left Line Mux", "Line 1", "LINPUT1"}, |
| {"Left Line Mux", "Line 2", "LINPUT2"}, |
| {"Left Line Mux", "Line 3", "LINPUT3"}, |
| {"Left Line Mux", "PGA", "Left PGA Mux"}, |
| {"Left Line Mux", "Differential", "Differential Mux"}, |
| |
| /* Right Line Mux */ |
| {"Right Line Mux", "Line 1", "RINPUT1"}, |
| {"Right Line Mux", "Line 2", "RINPUT2"}, |
| {"Right Line Mux", "Line 3", "RINPUT3"}, |
| {"Right Line Mux", "PGA", "Right PGA Mux"}, |
| {"Right Line Mux", "Differential", "Differential Mux"}, |
| |
| /* Left PGA Mux */ |
| {"Left PGA Mux", "Line 1", "LINPUT1"}, |
| {"Left PGA Mux", "Line 2", "LINPUT2"}, |
| {"Left PGA Mux", "Line 3", "LINPUT3"}, |
| {"Left PGA Mux", "Differential", "Differential Mux"}, |
| |
| /* Right PGA Mux */ |
| {"Right PGA Mux", "Line 1", "RINPUT1"}, |
| {"Right PGA Mux", "Line 2", "RINPUT2"}, |
| {"Right PGA Mux", "Line 3", "RINPUT3"}, |
| {"Right PGA Mux", "Differential", "Differential Mux"}, |
| |
| /* Differential Mux */ |
| {"Differential Mux", "Line 1", "LINPUT1"}, |
| {"Differential Mux", "Line 1", "RINPUT1"}, |
| {"Differential Mux", "Line 2", "LINPUT2"}, |
| {"Differential Mux", "Line 2", "RINPUT2"}, |
| |
| /* Left ADC Mux */ |
| {"Left ADC Mux", "Stereo", "Left PGA Mux"}, |
| {"Left ADC Mux", "Mono (Left)", "Left PGA Mux"}, |
| {"Left ADC Mux", "Digital Mono", "Left PGA Mux"}, |
| |
| /* Right ADC Mux */ |
| {"Right ADC Mux", "Stereo", "Right PGA Mux"}, |
| {"Right ADC Mux", "Mono (Right)", "Right PGA Mux"}, |
| {"Right ADC Mux", "Digital Mono", "Right PGA Mux"}, |
| |
| /* ADC */ |
| {"Left ADC", NULL, "Left ADC Mux"}, |
| {"Right ADC", NULL, "Right ADC Mux"}, |
| }; |
| |
| static int wm8750_add_widgets(struct snd_soc_codec *codec) |
| { |
| struct snd_soc_dapm_context *dapm = &codec->dapm; |
| |
| snd_soc_dapm_new_controls(dapm, wm8750_dapm_widgets, |
| ARRAY_SIZE(wm8750_dapm_widgets)); |
| snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); |
| |
| return 0; |
| } |
| |
| struct _coeff_div { |
| u32 mclk; |
| u32 rate; |
| u16 fs; |
| u8 sr:5; |
| u8 usb:1; |
| }; |
| |
| /* codec hifi mclk clock divider coefficients */ |
| static const struct _coeff_div coeff_div[] = { |
| /* 8k */ |
| {12288000, 8000, 1536, 0x6, 0x0}, |
| {11289600, 8000, 1408, 0x16, 0x0}, |
| {18432000, 8000, 2304, 0x7, 0x0}, |
| {16934400, 8000, 2112, 0x17, 0x0}, |
| {12000000, 8000, 1500, 0x6, 0x1}, |
| |
| /* 11.025k */ |
| {11289600, 11025, 1024, 0x18, 0x0}, |
| {16934400, 11025, 1536, 0x19, 0x0}, |
| {12000000, 11025, 1088, 0x19, 0x1}, |
| |
| /* 16k */ |
| {12288000, 16000, 768, 0xa, 0x0}, |
| {18432000, 16000, 1152, 0xb, 0x0}, |
| {12000000, 16000, 750, 0xa, 0x1}, |
| |
| /* 22.05k */ |
| {11289600, 22050, 512, 0x1a, 0x0}, |
| {16934400, 22050, 768, 0x1b, 0x0}, |
| {12000000, 22050, 544, 0x1b, 0x1}, |
| |
| /* 32k */ |
| {12288000, 32000, 384, 0xc, 0x0}, |
| {18432000, 32000, 576, 0xd, 0x0}, |
| {12000000, 32000, 375, 0xa, 0x1}, |
| |
| /* 44.1k */ |
| {11289600, 44100, 256, 0x10, 0x0}, |
| {16934400, 44100, 384, 0x11, 0x0}, |
| {12000000, 44100, 272, 0x11, 0x1}, |
| |
| /* 48k */ |
| {12288000, 48000, 256, 0x0, 0x0}, |
| {18432000, 48000, 384, 0x1, 0x0}, |
| {12000000, 48000, 250, 0x0, 0x1}, |
| |
| /* 88.2k */ |
| {11289600, 88200, 128, 0x1e, 0x0}, |
| {16934400, 88200, 192, 0x1f, 0x0}, |
| {12000000, 88200, 136, 0x1f, 0x1}, |
| |
| /* 96k */ |
| {12288000, 96000, 128, 0xe, 0x0}, |
| {18432000, 96000, 192, 0xf, 0x0}, |
| {12000000, 96000, 125, 0xe, 0x1}, |
| }; |
| |
| static inline int get_coeff(int mclk, int rate) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { |
| if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) |
| return i; |
| } |
| |
| printk(KERN_ERR "wm8750: could not get coeff for mclk %d @ rate %d\n", |
| mclk, rate); |
| return -EINVAL; |
| } |
| |
| static int wm8750_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
| int clk_id, unsigned int freq, int dir) |
| { |
| struct snd_soc_codec *codec = codec_dai->codec; |
| struct wm8750_priv *wm8750 = snd_soc_codec_get_drvdata(codec); |
| |
| switch (freq) { |
| case 11289600: |
| case 12000000: |
| case 12288000: |
| case 16934400: |
| case 18432000: |
| wm8750->sysclk = freq; |
| return 0; |
| } |
| return -EINVAL; |
| } |
| |
| static int wm8750_set_dai_fmt(struct snd_soc_dai *codec_dai, |
| unsigned int fmt) |
| { |
| struct snd_soc_codec *codec = codec_dai->codec; |
| u16 iface = 0; |
| |
| /* set master/slave audio interface */ |
| switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
| case SND_SOC_DAIFMT_CBM_CFM: |
| iface = 0x0040; |
| break; |
| case SND_SOC_DAIFMT_CBS_CFS: |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| /* interface format */ |
| switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| case SND_SOC_DAIFMT_I2S: |
| iface |= 0x0002; |
| break; |
| case SND_SOC_DAIFMT_RIGHT_J: |
| break; |
| case SND_SOC_DAIFMT_LEFT_J: |
| iface |= 0x0001; |
| break; |
| case SND_SOC_DAIFMT_DSP_A: |
| iface |= 0x0003; |
| break; |
| case SND_SOC_DAIFMT_DSP_B: |
| iface |= 0x0013; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| /* clock inversion */ |
| switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
| case SND_SOC_DAIFMT_NB_NF: |
| break; |
| case SND_SOC_DAIFMT_IB_IF: |
| iface |= 0x0090; |
| break; |
| case SND_SOC_DAIFMT_IB_NF: |
| iface |= 0x0080; |
| break; |
| case SND_SOC_DAIFMT_NB_IF: |
| iface |= 0x0010; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| snd_soc_write(codec, WM8750_IFACE, iface); |
| return 0; |
| } |
| |
| static int wm8750_pcm_hw_params(struct snd_pcm_substream *substream, |
| struct snd_pcm_hw_params *params, |
| struct snd_soc_dai *dai) |
| { |
| struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| struct snd_soc_codec *codec = rtd->codec; |
| struct wm8750_priv *wm8750 = snd_soc_codec_get_drvdata(codec); |
| u16 iface = snd_soc_read(codec, WM8750_IFACE) & 0x1f3; |
| u16 srate = snd_soc_read(codec, WM8750_SRATE) & 0x1c0; |
| int coeff = get_coeff(wm8750->sysclk, params_rate(params)); |
| |
| /* bit size */ |
| switch (params_format(params)) { |
| case SNDRV_PCM_FORMAT_S16_LE: |
| break; |
| case SNDRV_PCM_FORMAT_S20_3LE: |
| iface |= 0x0004; |
| break; |
| case SNDRV_PCM_FORMAT_S24_LE: |
| iface |= 0x0008; |
| break; |
| case SNDRV_PCM_FORMAT_S32_LE: |
| iface |= 0x000c; |
| break; |
| } |
| |
| /* set iface & srate */ |
| snd_soc_write(codec, WM8750_IFACE, iface); |
| if (coeff >= 0) |
| snd_soc_write(codec, WM8750_SRATE, srate | |
| (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb); |
| |
| return 0; |
| } |
| |
| static int wm8750_mute(struct snd_soc_dai *dai, int mute) |
| { |
| struct snd_soc_codec *codec = dai->codec; |
| u16 mute_reg = snd_soc_read(codec, WM8750_ADCDAC) & 0xfff7; |
| |
| if (mute) |
| snd_soc_write(codec, WM8750_ADCDAC, mute_reg | 0x8); |
| else |
| snd_soc_write(codec, WM8750_ADCDAC, mute_reg); |
| return 0; |
| } |
| |
| static int wm8750_set_bias_level(struct snd_soc_codec *codec, |
| enum snd_soc_bias_level level) |
| { |
| u16 pwr_reg = snd_soc_read(codec, WM8750_PWR1) & 0xfe3e; |
| |
| switch (level) { |
| case SND_SOC_BIAS_ON: |
| /* set vmid to 50k and unmute dac */ |
| snd_soc_write(codec, WM8750_PWR1, pwr_reg | 0x00c0); |
| break; |
| case SND_SOC_BIAS_PREPARE: |
| break; |
| case SND_SOC_BIAS_STANDBY: |
| if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { |
| /* Set VMID to 5k */ |
| snd_soc_write(codec, WM8750_PWR1, pwr_reg | 0x01c1); |
| |
| /* ...and ramp */ |
| msleep(1000); |
| } |
| |
| /* mute dac and set vmid to 500k, enable VREF */ |
| snd_soc_write(codec, WM8750_PWR1, pwr_reg | 0x0141); |
| break; |
| case SND_SOC_BIAS_OFF: |
| snd_soc_write(codec, WM8750_PWR1, 0x0001); |
| break; |
| } |
| codec->dapm.bias_level = level; |
| return 0; |
| } |
| |
| #define WM8750_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ |
| SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \ |
| SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) |
| |
| #define WM8750_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ |
| SNDRV_PCM_FMTBIT_S24_LE) |
| |
| static struct snd_soc_dai_ops wm8750_dai_ops = { |
| .hw_params = wm8750_pcm_hw_params, |
| .digital_mute = wm8750_mute, |
| .set_fmt = wm8750_set_dai_fmt, |
| .set_sysclk = wm8750_set_dai_sysclk, |
| }; |
| |
| static struct snd_soc_dai_driver wm8750_dai = { |
| .name = "wm8750-hifi", |
| .playback = { |
| .stream_name = "Playback", |
| .channels_min = 1, |
| .channels_max = 2, |
| .rates = WM8750_RATES, |
| .formats = WM8750_FORMATS,}, |
| .capture = { |
| .stream_name = "Capture", |
| .channels_min = 1, |
| .channels_max = 2, |
| .rates = WM8750_RATES, |
| .formats = WM8750_FORMATS,}, |
| .ops = &wm8750_dai_ops, |
| }; |
| |
| static int wm8750_suspend(struct snd_soc_codec *codec, pm_message_t state) |
| { |
| wm8750_set_bias_level(codec, SND_SOC_BIAS_OFF); |
| return 0; |
| } |
| |
| static int wm8750_resume(struct snd_soc_codec *codec) |
| { |
| int i; |
| u8 data[2]; |
| u16 *cache = codec->reg_cache; |
| |
| /* Sync reg_cache with the hardware */ |
| for (i = 0; i < ARRAY_SIZE(wm8750_reg); i++) { |
| if (i == WM8750_RESET) |
| continue; |
| data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001); |
| data[1] = cache[i] & 0x00ff; |
| codec->hw_write(codec->control_data, data, 2); |
| } |
| |
| wm8750_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
| |
| return 0; |
| } |
| |
| static int wm8750_probe(struct snd_soc_codec *codec) |
| { |
| struct wm8750_priv *wm8750 = snd_soc_codec_get_drvdata(codec); |
| int reg, ret; |
| |
| ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8750->control_type); |
| if (ret < 0) { |
| printk(KERN_ERR "wm8750: failed to set cache I/O: %d\n", ret); |
| return ret; |
| } |
| |
| ret = wm8750_reset(codec); |
| if (ret < 0) { |
| printk(KERN_ERR "wm8750: failed to reset: %d\n", ret); |
| return ret; |
| } |
| |
| /* charge output caps */ |
| wm8750_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
| |
| /* set the update bits */ |
| reg = snd_soc_read(codec, WM8750_LDAC); |
| snd_soc_write(codec, WM8750_LDAC, reg | 0x0100); |
| reg = snd_soc_read(codec, WM8750_RDAC); |
| snd_soc_write(codec, WM8750_RDAC, reg | 0x0100); |
| reg = snd_soc_read(codec, WM8750_LOUT1V); |
| snd_soc_write(codec, WM8750_LOUT1V, reg | 0x0100); |
| reg = snd_soc_read(codec, WM8750_ROUT1V); |
| snd_soc_write(codec, WM8750_ROUT1V, reg | 0x0100); |
| reg = snd_soc_read(codec, WM8750_LOUT2V); |
| snd_soc_write(codec, WM8750_LOUT2V, reg | 0x0100); |
| reg = snd_soc_read(codec, WM8750_ROUT2V); |
| snd_soc_write(codec, WM8750_ROUT2V, reg | 0x0100); |
| reg = snd_soc_read(codec, WM8750_LINVOL); |
| snd_soc_write(codec, WM8750_LINVOL, reg | 0x0100); |
| reg = snd_soc_read(codec, WM8750_RINVOL); |
| snd_soc_write(codec, WM8750_RINVOL, reg | 0x0100); |
| |
| snd_soc_add_controls(codec, wm8750_snd_controls, |
| ARRAY_SIZE(wm8750_snd_controls)); |
| wm8750_add_widgets(codec); |
| return ret; |
| } |
| |
| static int wm8750_remove(struct snd_soc_codec *codec) |
| { |
| wm8750_set_bias_level(codec, SND_SOC_BIAS_OFF); |
| return 0; |
| } |
| |
| static struct snd_soc_codec_driver soc_codec_dev_wm8750 = { |
| .probe = wm8750_probe, |
| .remove = wm8750_remove, |
| .suspend = wm8750_suspend, |
| .resume = wm8750_resume, |
| .set_bias_level = wm8750_set_bias_level, |
| .reg_cache_size = ARRAY_SIZE(wm8750_reg), |
| .reg_word_size = sizeof(u16), |
| .reg_cache_default = wm8750_reg, |
| }; |
| |
| #if defined(CONFIG_SPI_MASTER) |
| static int __devinit wm8750_spi_probe(struct spi_device *spi) |
| { |
| struct wm8750_priv *wm8750; |
| int ret; |
| |
| wm8750 = kzalloc(sizeof(struct wm8750_priv), GFP_KERNEL); |
| if (wm8750 == NULL) |
| return -ENOMEM; |
| |
| wm8750->control_type = SND_SOC_SPI; |
| spi_set_drvdata(spi, wm8750); |
| |
| ret = snd_soc_register_codec(&spi->dev, |
| &soc_codec_dev_wm8750, &wm8750_dai, 1); |
| if (ret < 0) |
| kfree(wm8750); |
| return ret; |
| } |
| |
| static int __devexit wm8750_spi_remove(struct spi_device *spi) |
| { |
| snd_soc_unregister_codec(&spi->dev); |
| kfree(spi_get_drvdata(spi)); |
| return 0; |
| } |
| |
| static struct spi_driver wm8750_spi_driver = { |
| .driver = { |
| .name = "wm8750-codec", |
| .owner = THIS_MODULE, |
| }, |
| .probe = wm8750_spi_probe, |
| .remove = __devexit_p(wm8750_spi_remove), |
| }; |
| #endif /* CONFIG_SPI_MASTER */ |
| |
| #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
| static __devinit int wm8750_i2c_probe(struct i2c_client *i2c, |
| const struct i2c_device_id *id) |
| { |
| struct wm8750_priv *wm8750; |
| int ret; |
| |
| wm8750 = kzalloc(sizeof(struct wm8750_priv), GFP_KERNEL); |
| if (wm8750 == NULL) |
| return -ENOMEM; |
| |
| i2c_set_clientdata(i2c, wm8750); |
| wm8750->control_type = SND_SOC_I2C; |
| |
| ret = snd_soc_register_codec(&i2c->dev, |
| &soc_codec_dev_wm8750, &wm8750_dai, 1); |
| if (ret < 0) |
| kfree(wm8750); |
| return ret; |
| } |
| |
| static __devexit int wm8750_i2c_remove(struct i2c_client *client) |
| { |
| snd_soc_unregister_codec(&client->dev); |
| kfree(i2c_get_clientdata(client)); |
| return 0; |
| } |
| |
| static const struct i2c_device_id wm8750_i2c_id[] = { |
| { "wm8750", 0 }, |
| { "wm8987", 0 }, |
| { } |
| }; |
| MODULE_DEVICE_TABLE(i2c, wm8750_i2c_id); |
| |
| static struct i2c_driver wm8750_i2c_driver = { |
| .driver = { |
| .name = "wm8750-codec", |
| .owner = THIS_MODULE, |
| }, |
| .probe = wm8750_i2c_probe, |
| .remove = __devexit_p(wm8750_i2c_remove), |
| .id_table = wm8750_i2c_id, |
| }; |
| #endif |
| |
| static int __init wm8750_modinit(void) |
| { |
| int ret = 0; |
| #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
| ret = i2c_add_driver(&wm8750_i2c_driver); |
| if (ret != 0) { |
| printk(KERN_ERR "Failed to register wm8750 I2C driver: %d\n", |
| ret); |
| } |
| #endif |
| #if defined(CONFIG_SPI_MASTER) |
| ret = spi_register_driver(&wm8750_spi_driver); |
| if (ret != 0) { |
| printk(KERN_ERR "Failed to register wm8750 SPI driver: %d\n", |
| ret); |
| } |
| #endif |
| return ret; |
| } |
| module_init(wm8750_modinit); |
| |
| static void __exit wm8750_exit(void) |
| { |
| #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
| i2c_del_driver(&wm8750_i2c_driver); |
| #endif |
| #if defined(CONFIG_SPI_MASTER) |
| spi_unregister_driver(&wm8750_spi_driver); |
| #endif |
| } |
| module_exit(wm8750_exit); |
| |
| MODULE_DESCRIPTION("ASoC WM8750 driver"); |
| MODULE_AUTHOR("Liam Girdwood"); |
| MODULE_LICENSE("GPL"); |