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857 lines
24 KiB
857 lines
24 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* wm8750.c -- WM8750 ALSA SoC audio driver |
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* |
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* Copyright 2005 Openedhand Ltd. |
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* |
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* Author: Richard Purdie <[email protected]> |
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* |
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* Based on WM8753.c |
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*/ |
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#include <linux/module.h> |
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#include <linux/moduleparam.h> |
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#include <linux/init.h> |
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#include <linux/delay.h> |
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#include <linux/pm.h> |
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#include <linux/i2c.h> |
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#include <linux/regmap.h> |
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#include <linux/spi/spi.h> |
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#include <linux/slab.h> |
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#include <linux/of_device.h> |
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#include <sound/core.h> |
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#include <sound/pcm.h> |
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#include <sound/pcm_params.h> |
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#include <sound/soc.h> |
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#include <sound/initval.h> |
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#include "wm8750.h" |
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/* |
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* wm8750 register cache |
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* We can't read the WM8750 register space when we |
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* are using 2 wire for device control, so we cache them instead. |
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*/ |
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static const struct reg_default wm8750_reg_defaults[] = { |
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{ 0, 0x0097 }, |
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{ 1, 0x0097 }, |
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{ 2, 0x0079 }, |
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{ 3, 0x0079 }, |
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{ 4, 0x0000 }, |
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{ 5, 0x0008 }, |
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{ 6, 0x0000 }, |
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{ 7, 0x000a }, |
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{ 8, 0x0000 }, |
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{ 9, 0x0000 }, |
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{ 10, 0x00ff }, |
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{ 11, 0x00ff }, |
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{ 12, 0x000f }, |
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{ 13, 0x000f }, |
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{ 14, 0x0000 }, |
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{ 15, 0x0000 }, |
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{ 16, 0x0000 }, |
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{ 17, 0x007b }, |
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{ 18, 0x0000 }, |
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{ 19, 0x0032 }, |
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{ 20, 0x0000 }, |
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{ 21, 0x00c3 }, |
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{ 22, 0x00c3 }, |
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{ 23, 0x00c0 }, |
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{ 24, 0x0000 }, |
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{ 25, 0x0000 }, |
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{ 26, 0x0000 }, |
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{ 27, 0x0000 }, |
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{ 28, 0x0000 }, |
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{ 29, 0x0000 }, |
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{ 30, 0x0000 }, |
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{ 31, 0x0000 }, |
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{ 32, 0x0000 }, |
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{ 33, 0x0000 }, |
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{ 34, 0x0050 }, |
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{ 35, 0x0050 }, |
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{ 36, 0x0050 }, |
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{ 37, 0x0050 }, |
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{ 38, 0x0050 }, |
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{ 39, 0x0050 }, |
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{ 40, 0x0079 }, |
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{ 41, 0x0079 }, |
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{ 42, 0x0079 }, |
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}; |
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/* codec private data */ |
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struct wm8750_priv { |
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unsigned int sysclk; |
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}; |
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#define wm8750_reset(c) snd_soc_component_write(c, WM8750_RESET, 0) |
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/* |
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* WM8750 Controls |
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*/ |
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static const char *wm8750_bass[] = {"Linear Control", "Adaptive Boost"}; |
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static const char *wm8750_bass_filter[] = { "130Hz @ 48kHz", "200Hz @ 48kHz" }; |
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static const char *wm8750_treble[] = {"8kHz", "4kHz"}; |
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static const char *wm8750_3d_lc[] = {"200Hz", "500Hz"}; |
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static const char *wm8750_3d_uc[] = {"2.2kHz", "1.5kHz"}; |
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static const char *wm8750_3d_func[] = {"Capture", "Playback"}; |
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static const char *wm8750_alc_func[] = {"Off", "Right", "Left", "Stereo"}; |
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static const char *wm8750_ng_type[] = {"Constant PGA Gain", |
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"Mute ADC Output"}; |
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static const char *wm8750_line_mux[] = {"Line 1", "Line 2", "Line 3", "PGA", |
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"Differential"}; |
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static const char *wm8750_pga_sel[] = {"Line 1", "Line 2", "Line 3", |
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"Differential"}; |
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static const char *wm8750_out3[] = {"VREF", "ROUT1 + Vol", "MonoOut", |
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"ROUT1"}; |
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static const char *wm8750_diff_sel[] = {"Line 1", "Line 2"}; |
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static const char *wm8750_adcpol[] = {"Normal", "L Invert", "R Invert", |
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"L + R Invert"}; |
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static const char *wm8750_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"}; |
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static const char *wm8750_mono_mux[] = {"Stereo", "Mono (Left)", |
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"Mono (Right)", "Digital Mono"}; |
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static const struct soc_enum wm8750_enum[] = { |
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SOC_ENUM_SINGLE(WM8750_BASS, 7, 2, wm8750_bass), |
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SOC_ENUM_SINGLE(WM8750_BASS, 6, 2, wm8750_bass_filter), |
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SOC_ENUM_SINGLE(WM8750_TREBLE, 6, 2, wm8750_treble), |
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SOC_ENUM_SINGLE(WM8750_3D, 5, 2, wm8750_3d_lc), |
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SOC_ENUM_SINGLE(WM8750_3D, 6, 2, wm8750_3d_uc), |
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SOC_ENUM_SINGLE(WM8750_3D, 7, 2, wm8750_3d_func), |
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SOC_ENUM_SINGLE(WM8750_ALC1, 7, 4, wm8750_alc_func), |
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SOC_ENUM_SINGLE(WM8750_NGATE, 1, 2, wm8750_ng_type), |
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SOC_ENUM_SINGLE(WM8750_LOUTM1, 0, 5, wm8750_line_mux), |
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SOC_ENUM_SINGLE(WM8750_ROUTM1, 0, 5, wm8750_line_mux), |
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SOC_ENUM_SINGLE(WM8750_LADCIN, 6, 4, wm8750_pga_sel), /* 10 */ |
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SOC_ENUM_SINGLE(WM8750_RADCIN, 6, 4, wm8750_pga_sel), |
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SOC_ENUM_SINGLE(WM8750_ADCTL2, 7, 4, wm8750_out3), |
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SOC_ENUM_SINGLE(WM8750_ADCIN, 8, 2, wm8750_diff_sel), |
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SOC_ENUM_SINGLE(WM8750_ADCDAC, 5, 4, wm8750_adcpol), |
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SOC_ENUM_SINGLE(WM8750_ADCDAC, 1, 4, wm8750_deemph), |
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SOC_ENUM_SINGLE(WM8750_ADCIN, 6, 4, wm8750_mono_mux), /* 16 */ |
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}; |
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static const struct snd_kcontrol_new wm8750_snd_controls[] = { |
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SOC_DOUBLE_R("Capture Volume", WM8750_LINVOL, WM8750_RINVOL, 0, 63, 0), |
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SOC_DOUBLE_R("Capture ZC Switch", WM8750_LINVOL, WM8750_RINVOL, 6, 1, 0), |
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SOC_DOUBLE_R("Capture Switch", WM8750_LINVOL, WM8750_RINVOL, 7, 1, 1), |
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SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8750_LOUT1V, |
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WM8750_ROUT1V, 7, 1, 0), |
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SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8750_LOUT2V, |
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WM8750_ROUT2V, 7, 1, 0), |
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SOC_ENUM("Playback De-emphasis", wm8750_enum[15]), |
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SOC_ENUM("Capture Polarity", wm8750_enum[14]), |
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SOC_SINGLE("Playback 6dB Attenuate", WM8750_ADCDAC, 7, 1, 0), |
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SOC_SINGLE("Capture 6dB Attenuate", WM8750_ADCDAC, 8, 1, 0), |
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SOC_DOUBLE_R("PCM Volume", WM8750_LDAC, WM8750_RDAC, 0, 255, 0), |
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SOC_ENUM("Bass Boost", wm8750_enum[0]), |
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SOC_ENUM("Bass Filter", wm8750_enum[1]), |
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SOC_SINGLE("Bass Volume", WM8750_BASS, 0, 15, 1), |
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SOC_SINGLE("Treble Volume", WM8750_TREBLE, 0, 15, 1), |
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SOC_ENUM("Treble Cut-off", wm8750_enum[2]), |
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SOC_SINGLE("3D Switch", WM8750_3D, 0, 1, 0), |
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SOC_SINGLE("3D Volume", WM8750_3D, 1, 15, 0), |
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SOC_ENUM("3D Lower Cut-off", wm8750_enum[3]), |
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SOC_ENUM("3D Upper Cut-off", wm8750_enum[4]), |
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SOC_ENUM("3D Mode", wm8750_enum[5]), |
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SOC_SINGLE("ALC Capture Target Volume", WM8750_ALC1, 0, 7, 0), |
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SOC_SINGLE("ALC Capture Max Volume", WM8750_ALC1, 4, 7, 0), |
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SOC_ENUM("ALC Capture Function", wm8750_enum[6]), |
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SOC_SINGLE("ALC Capture ZC Switch", WM8750_ALC2, 7, 1, 0), |
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SOC_SINGLE("ALC Capture Hold Time", WM8750_ALC2, 0, 15, 0), |
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SOC_SINGLE("ALC Capture Decay Time", WM8750_ALC3, 4, 15, 0), |
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SOC_SINGLE("ALC Capture Attack Time", WM8750_ALC3, 0, 15, 0), |
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SOC_SINGLE("ALC Capture NG Threshold", WM8750_NGATE, 3, 31, 0), |
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SOC_ENUM("ALC Capture NG Type", wm8750_enum[4]), |
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SOC_SINGLE("ALC Capture NG Switch", WM8750_NGATE, 0, 1, 0), |
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SOC_SINGLE("Left ADC Capture Volume", WM8750_LADC, 0, 255, 0), |
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SOC_SINGLE("Right ADC Capture Volume", WM8750_RADC, 0, 255, 0), |
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SOC_SINGLE("ZC Timeout Switch", WM8750_ADCTL1, 0, 1, 0), |
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SOC_SINGLE("Playback Invert Switch", WM8750_ADCTL1, 1, 1, 0), |
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SOC_SINGLE("Right Speaker Playback Invert Switch", WM8750_ADCTL2, 4, 1, 0), |
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/* Unimplemented */ |
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/* ADCDAC Bit 0 - ADCHPD */ |
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/* ADCDAC Bit 4 - HPOR */ |
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/* ADCTL1 Bit 2,3 - DATSEL */ |
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/* ADCTL1 Bit 4,5 - DMONOMIX */ |
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/* ADCTL1 Bit 6,7 - VSEL */ |
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/* ADCTL2 Bit 2 - LRCM */ |
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/* ADCTL2 Bit 3 - TRI */ |
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/* ADCTL3 Bit 5 - HPFLREN */ |
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/* ADCTL3 Bit 6 - VROI */ |
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/* ADCTL3 Bit 7,8 - ADCLRM */ |
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/* ADCIN Bit 4 - LDCM */ |
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/* ADCIN Bit 5 - RDCM */ |
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SOC_DOUBLE_R("Mic Boost", WM8750_LADCIN, WM8750_RADCIN, 4, 3, 0), |
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SOC_DOUBLE_R("Bypass Left Playback Volume", WM8750_LOUTM1, |
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WM8750_LOUTM2, 4, 7, 1), |
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SOC_DOUBLE_R("Bypass Right Playback Volume", WM8750_ROUTM1, |
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WM8750_ROUTM2, 4, 7, 1), |
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SOC_DOUBLE_R("Bypass Mono Playback Volume", WM8750_MOUTM1, |
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WM8750_MOUTM2, 4, 7, 1), |
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SOC_SINGLE("Mono Playback ZC Switch", WM8750_MOUTV, 7, 1, 0), |
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SOC_DOUBLE_R("Headphone Playback Volume", WM8750_LOUT1V, WM8750_ROUT1V, |
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0, 127, 0), |
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SOC_DOUBLE_R("Speaker Playback Volume", WM8750_LOUT2V, WM8750_ROUT2V, |
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0, 127, 0), |
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SOC_SINGLE("Mono Playback Volume", WM8750_MOUTV, 0, 127, 0), |
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}; |
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/* |
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* DAPM Controls |
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*/ |
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/* Left Mixer */ |
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static const struct snd_kcontrol_new wm8750_left_mixer_controls[] = { |
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SOC_DAPM_SINGLE("Playback Switch", WM8750_LOUTM1, 8, 1, 0), |
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SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_LOUTM1, 7, 1, 0), |
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SOC_DAPM_SINGLE("Right Playback Switch", WM8750_LOUTM2, 8, 1, 0), |
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SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_LOUTM2, 7, 1, 0), |
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}; |
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/* Right Mixer */ |
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static const struct snd_kcontrol_new wm8750_right_mixer_controls[] = { |
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SOC_DAPM_SINGLE("Left Playback Switch", WM8750_ROUTM1, 8, 1, 0), |
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SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_ROUTM1, 7, 1, 0), |
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SOC_DAPM_SINGLE("Playback Switch", WM8750_ROUTM2, 8, 1, 0), |
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SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_ROUTM2, 7, 1, 0), |
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}; |
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/* Mono Mixer */ |
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static const struct snd_kcontrol_new wm8750_mono_mixer_controls[] = { |
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SOC_DAPM_SINGLE("Left Playback Switch", WM8750_MOUTM1, 8, 1, 0), |
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SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_MOUTM1, 7, 1, 0), |
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SOC_DAPM_SINGLE("Right Playback Switch", WM8750_MOUTM2, 8, 1, 0), |
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SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_MOUTM2, 7, 1, 0), |
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}; |
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/* Left Line Mux */ |
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static const struct snd_kcontrol_new wm8750_left_line_controls = |
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SOC_DAPM_ENUM("Route", wm8750_enum[8]); |
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/* Right Line Mux */ |
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static const struct snd_kcontrol_new wm8750_right_line_controls = |
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SOC_DAPM_ENUM("Route", wm8750_enum[9]); |
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/* Left PGA Mux */ |
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static const struct snd_kcontrol_new wm8750_left_pga_controls = |
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SOC_DAPM_ENUM("Route", wm8750_enum[10]); |
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/* Right PGA Mux */ |
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static const struct snd_kcontrol_new wm8750_right_pga_controls = |
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SOC_DAPM_ENUM("Route", wm8750_enum[11]); |
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/* Out 3 Mux */ |
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static const struct snd_kcontrol_new wm8750_out3_controls = |
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SOC_DAPM_ENUM("Route", wm8750_enum[12]); |
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/* Differential Mux */ |
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static const struct snd_kcontrol_new wm8750_diffmux_controls = |
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SOC_DAPM_ENUM("Route", wm8750_enum[13]); |
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/* Mono ADC Mux */ |
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static const struct snd_kcontrol_new wm8750_monomux_controls = |
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SOC_DAPM_ENUM("Route", wm8750_enum[16]); |
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static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = { |
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SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0, |
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&wm8750_left_mixer_controls[0], |
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ARRAY_SIZE(wm8750_left_mixer_controls)), |
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SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0, |
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&wm8750_right_mixer_controls[0], |
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ARRAY_SIZE(wm8750_right_mixer_controls)), |
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SND_SOC_DAPM_MIXER("Mono Mixer", WM8750_PWR2, 2, 0, |
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&wm8750_mono_mixer_controls[0], |
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ARRAY_SIZE(wm8750_mono_mixer_controls)), |
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SND_SOC_DAPM_PGA("Right Out 2", WM8750_PWR2, 3, 0, NULL, 0), |
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SND_SOC_DAPM_PGA("Left Out 2", WM8750_PWR2, 4, 0, NULL, 0), |
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SND_SOC_DAPM_PGA("Right Out 1", WM8750_PWR2, 5, 0, NULL, 0), |
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SND_SOC_DAPM_PGA("Left Out 1", WM8750_PWR2, 6, 0, NULL, 0), |
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SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8750_PWR2, 7, 0), |
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SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8750_PWR2, 8, 0), |
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SND_SOC_DAPM_MICBIAS("Mic Bias", WM8750_PWR1, 1, 0), |
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SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8750_PWR1, 2, 0), |
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SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8750_PWR1, 3, 0), |
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SND_SOC_DAPM_MUX("Left PGA Mux", WM8750_PWR1, 5, 0, |
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&wm8750_left_pga_controls), |
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SND_SOC_DAPM_MUX("Right PGA Mux", WM8750_PWR1, 4, 0, |
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&wm8750_right_pga_controls), |
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SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0, |
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&wm8750_left_line_controls), |
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SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0, |
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&wm8750_right_line_controls), |
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SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8750_out3_controls), |
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SND_SOC_DAPM_PGA("Out 3", WM8750_PWR2, 1, 0, NULL, 0), |
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SND_SOC_DAPM_PGA("Mono Out 1", WM8750_PWR2, 2, 0, NULL, 0), |
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SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0, |
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&wm8750_diffmux_controls), |
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SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0, |
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&wm8750_monomux_controls), |
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SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0, |
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&wm8750_monomux_controls), |
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SND_SOC_DAPM_OUTPUT("LOUT1"), |
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SND_SOC_DAPM_OUTPUT("ROUT1"), |
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SND_SOC_DAPM_OUTPUT("LOUT2"), |
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SND_SOC_DAPM_OUTPUT("ROUT2"), |
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SND_SOC_DAPM_OUTPUT("MONO1"), |
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SND_SOC_DAPM_OUTPUT("OUT3"), |
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SND_SOC_DAPM_VMID("VREF"), |
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SND_SOC_DAPM_INPUT("LINPUT1"), |
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SND_SOC_DAPM_INPUT("LINPUT2"), |
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SND_SOC_DAPM_INPUT("LINPUT3"), |
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SND_SOC_DAPM_INPUT("RINPUT1"), |
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SND_SOC_DAPM_INPUT("RINPUT2"), |
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SND_SOC_DAPM_INPUT("RINPUT3"), |
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}; |
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static const struct snd_soc_dapm_route wm8750_dapm_routes[] = { |
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/* left mixer */ |
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{"Left Mixer", "Playback Switch", "Left DAC"}, |
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{"Left Mixer", "Left Bypass Switch", "Left Line Mux"}, |
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{"Left Mixer", "Right Playback Switch", "Right DAC"}, |
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{"Left Mixer", "Right Bypass Switch", "Right Line Mux"}, |
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/* right mixer */ |
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{"Right Mixer", "Left Playback Switch", "Left DAC"}, |
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{"Right Mixer", "Left Bypass Switch", "Left Line Mux"}, |
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{"Right Mixer", "Playback Switch", "Right DAC"}, |
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{"Right Mixer", "Right Bypass Switch", "Right Line Mux"}, |
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/* left out 1 */ |
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{"Left Out 1", NULL, "Left Mixer"}, |
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{"LOUT1", NULL, "Left Out 1"}, |
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/* left out 2 */ |
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{"Left Out 2", NULL, "Left Mixer"}, |
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{"LOUT2", NULL, "Left Out 2"}, |
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/* right out 1 */ |
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{"Right Out 1", NULL, "Right Mixer"}, |
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{"ROUT1", NULL, "Right Out 1"}, |
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/* right out 2 */ |
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{"Right Out 2", NULL, "Right Mixer"}, |
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{"ROUT2", NULL, "Right Out 2"}, |
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/* mono mixer */ |
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{"Mono Mixer", "Left Playback Switch", "Left DAC"}, |
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{"Mono Mixer", "Left Bypass Switch", "Left Line Mux"}, |
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{"Mono Mixer", "Right Playback Switch", "Right DAC"}, |
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{"Mono Mixer", "Right Bypass Switch", "Right Line Mux"}, |
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/* mono out */ |
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{"Mono Out 1", NULL, "Mono Mixer"}, |
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{"MONO1", NULL, "Mono Out 1"}, |
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/* out 3 */ |
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{"Out3 Mux", "VREF", "VREF"}, |
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{"Out3 Mux", "ROUT1 + Vol", "ROUT1"}, |
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{"Out3 Mux", "ROUT1", "Right Mixer"}, |
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{"Out3 Mux", "MonoOut", "MONO1"}, |
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{"Out 3", NULL, "Out3 Mux"}, |
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{"OUT3", NULL, "Out 3"}, |
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|
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/* Left Line Mux */ |
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{"Left Line Mux", "Line 1", "LINPUT1"}, |
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{"Left Line Mux", "Line 2", "LINPUT2"}, |
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{"Left Line Mux", "Line 3", "LINPUT3"}, |
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{"Left Line Mux", "PGA", "Left PGA Mux"}, |
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{"Left Line Mux", "Differential", "Differential Mux"}, |
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/* Right Line Mux */ |
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{"Right Line Mux", "Line 1", "RINPUT1"}, |
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{"Right Line Mux", "Line 2", "RINPUT2"}, |
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{"Right Line Mux", "Line 3", "RINPUT3"}, |
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{"Right Line Mux", "PGA", "Right PGA Mux"}, |
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{"Right Line Mux", "Differential", "Differential Mux"}, |
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/* Left PGA Mux */ |
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{"Left PGA Mux", "Line 1", "LINPUT1"}, |
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{"Left PGA Mux", "Line 2", "LINPUT2"}, |
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{"Left PGA Mux", "Line 3", "LINPUT3"}, |
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{"Left PGA Mux", "Differential", "Differential Mux"}, |
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/* Right PGA Mux */ |
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{"Right PGA Mux", "Line 1", "RINPUT1"}, |
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{"Right PGA Mux", "Line 2", "RINPUT2"}, |
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{"Right PGA Mux", "Line 3", "RINPUT3"}, |
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{"Right PGA Mux", "Differential", "Differential Mux"}, |
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/* Differential Mux */ |
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{"Differential Mux", "Line 1", "LINPUT1"}, |
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{"Differential Mux", "Line 1", "RINPUT1"}, |
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{"Differential Mux", "Line 2", "LINPUT2"}, |
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{"Differential Mux", "Line 2", "RINPUT2"}, |
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/* Left ADC Mux */ |
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{"Left ADC Mux", "Stereo", "Left PGA Mux"}, |
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{"Left ADC Mux", "Mono (Left)", "Left PGA Mux"}, |
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{"Left ADC Mux", "Digital Mono", "Left PGA Mux"}, |
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|
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/* 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"}, |
|
}; |
|
|
|
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_component *component = codec_dai->component; |
|
struct wm8750_priv *wm8750 = snd_soc_component_get_drvdata(component); |
|
|
|
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_component *component = codec_dai->component; |
|
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_component_write(component, 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_component *component = dai->component; |
|
struct wm8750_priv *wm8750 = snd_soc_component_get_drvdata(component); |
|
u16 iface = snd_soc_component_read(component, WM8750_IFACE) & 0x1f3; |
|
u16 srate = snd_soc_component_read(component, WM8750_SRATE) & 0x1c0; |
|
int coeff = get_coeff(wm8750->sysclk, params_rate(params)); |
|
|
|
/* bit size */ |
|
switch (params_width(params)) { |
|
case 16: |
|
break; |
|
case 20: |
|
iface |= 0x0004; |
|
break; |
|
case 24: |
|
iface |= 0x0008; |
|
break; |
|
case 32: |
|
iface |= 0x000c; |
|
break; |
|
} |
|
|
|
/* set iface & srate */ |
|
snd_soc_component_write(component, WM8750_IFACE, iface); |
|
if (coeff >= 0) |
|
snd_soc_component_write(component, 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, int direction) |
|
{ |
|
struct snd_soc_component *component = dai->component; |
|
u16 mute_reg = snd_soc_component_read(component, WM8750_ADCDAC) & 0xfff7; |
|
|
|
if (mute) |
|
snd_soc_component_write(component, WM8750_ADCDAC, mute_reg | 0x8); |
|
else |
|
snd_soc_component_write(component, WM8750_ADCDAC, mute_reg); |
|
return 0; |
|
} |
|
|
|
static int wm8750_set_bias_level(struct snd_soc_component *component, |
|
enum snd_soc_bias_level level) |
|
{ |
|
u16 pwr_reg = snd_soc_component_read(component, WM8750_PWR1) & 0xfe3e; |
|
|
|
switch (level) { |
|
case SND_SOC_BIAS_ON: |
|
/* set vmid to 50k and unmute dac */ |
|
snd_soc_component_write(component, WM8750_PWR1, pwr_reg | 0x00c0); |
|
break; |
|
case SND_SOC_BIAS_PREPARE: |
|
break; |
|
case SND_SOC_BIAS_STANDBY: |
|
if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { |
|
snd_soc_component_cache_sync(component); |
|
|
|
/* Set VMID to 5k */ |
|
snd_soc_component_write(component, WM8750_PWR1, pwr_reg | 0x01c1); |
|
|
|
/* ...and ramp */ |
|
msleep(1000); |
|
} |
|
|
|
/* mute dac and set vmid to 500k, enable VREF */ |
|
snd_soc_component_write(component, WM8750_PWR1, pwr_reg | 0x0141); |
|
break; |
|
case SND_SOC_BIAS_OFF: |
|
snd_soc_component_write(component, WM8750_PWR1, 0x0001); |
|
break; |
|
} |
|
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 const struct snd_soc_dai_ops wm8750_dai_ops = { |
|
.hw_params = wm8750_pcm_hw_params, |
|
.mute_stream = wm8750_mute, |
|
.set_fmt = wm8750_set_dai_fmt, |
|
.set_sysclk = wm8750_set_dai_sysclk, |
|
.no_capture_mute = 1, |
|
}; |
|
|
|
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_probe(struct snd_soc_component *component) |
|
{ |
|
int ret; |
|
|
|
ret = wm8750_reset(component); |
|
if (ret < 0) { |
|
printk(KERN_ERR "wm8750: failed to reset: %d\n", ret); |
|
return ret; |
|
} |
|
|
|
/* set the update bits */ |
|
snd_soc_component_update_bits(component, WM8750_LDAC, 0x0100, 0x0100); |
|
snd_soc_component_update_bits(component, WM8750_RDAC, 0x0100, 0x0100); |
|
snd_soc_component_update_bits(component, WM8750_LOUT1V, 0x0100, 0x0100); |
|
snd_soc_component_update_bits(component, WM8750_ROUT1V, 0x0100, 0x0100); |
|
snd_soc_component_update_bits(component, WM8750_LOUT2V, 0x0100, 0x0100); |
|
snd_soc_component_update_bits(component, WM8750_ROUT2V, 0x0100, 0x0100); |
|
snd_soc_component_update_bits(component, WM8750_LINVOL, 0x0100, 0x0100); |
|
snd_soc_component_update_bits(component, WM8750_RINVOL, 0x0100, 0x0100); |
|
|
|
return ret; |
|
} |
|
|
|
static const struct snd_soc_component_driver soc_component_dev_wm8750 = { |
|
.probe = wm8750_probe, |
|
.set_bias_level = wm8750_set_bias_level, |
|
.controls = wm8750_snd_controls, |
|
.num_controls = ARRAY_SIZE(wm8750_snd_controls), |
|
.dapm_widgets = wm8750_dapm_widgets, |
|
.num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets), |
|
.dapm_routes = wm8750_dapm_routes, |
|
.num_dapm_routes = ARRAY_SIZE(wm8750_dapm_routes), |
|
.suspend_bias_off = 1, |
|
.idle_bias_on = 1, |
|
.use_pmdown_time = 1, |
|
.endianness = 1, |
|
.non_legacy_dai_naming = 1, |
|
}; |
|
|
|
static const struct of_device_id wm8750_of_match[] = { |
|
{ .compatible = "wlf,wm8750", }, |
|
{ .compatible = "wlf,wm8987", }, |
|
{ } |
|
}; |
|
MODULE_DEVICE_TABLE(of, wm8750_of_match); |
|
|
|
static const struct regmap_config wm8750_regmap = { |
|
.reg_bits = 7, |
|
.val_bits = 9, |
|
.max_register = WM8750_MOUTV, |
|
|
|
.reg_defaults = wm8750_reg_defaults, |
|
.num_reg_defaults = ARRAY_SIZE(wm8750_reg_defaults), |
|
.cache_type = REGCACHE_RBTREE, |
|
}; |
|
|
|
#if defined(CONFIG_SPI_MASTER) |
|
static int wm8750_spi_probe(struct spi_device *spi) |
|
{ |
|
struct wm8750_priv *wm8750; |
|
struct regmap *regmap; |
|
int ret; |
|
|
|
wm8750 = devm_kzalloc(&spi->dev, sizeof(struct wm8750_priv), |
|
GFP_KERNEL); |
|
if (wm8750 == NULL) |
|
return -ENOMEM; |
|
|
|
regmap = devm_regmap_init_spi(spi, &wm8750_regmap); |
|
if (IS_ERR(regmap)) |
|
return PTR_ERR(regmap); |
|
|
|
spi_set_drvdata(spi, wm8750); |
|
|
|
ret = devm_snd_soc_register_component(&spi->dev, |
|
&soc_component_dev_wm8750, &wm8750_dai, 1); |
|
return ret; |
|
} |
|
|
|
static const struct spi_device_id wm8750_spi_ids[] = { |
|
{ "wm8750", 0 }, |
|
{ "wm8987", 0 }, |
|
{ }, |
|
}; |
|
MODULE_DEVICE_TABLE(spi, wm8750_spi_ids); |
|
|
|
static struct spi_driver wm8750_spi_driver = { |
|
.driver = { |
|
.name = "wm8750", |
|
.of_match_table = wm8750_of_match, |
|
}, |
|
.id_table = wm8750_spi_ids, |
|
.probe = wm8750_spi_probe, |
|
}; |
|
#endif /* CONFIG_SPI_MASTER */ |
|
|
|
#if IS_ENABLED(CONFIG_I2C) |
|
static int wm8750_i2c_probe(struct i2c_client *i2c, |
|
const struct i2c_device_id *id) |
|
{ |
|
struct wm8750_priv *wm8750; |
|
struct regmap *regmap; |
|
int ret; |
|
|
|
wm8750 = devm_kzalloc(&i2c->dev, sizeof(struct wm8750_priv), |
|
GFP_KERNEL); |
|
if (wm8750 == NULL) |
|
return -ENOMEM; |
|
|
|
i2c_set_clientdata(i2c, wm8750); |
|
|
|
regmap = devm_regmap_init_i2c(i2c, &wm8750_regmap); |
|
if (IS_ERR(regmap)) |
|
return PTR_ERR(regmap); |
|
|
|
ret = devm_snd_soc_register_component(&i2c->dev, |
|
&soc_component_dev_wm8750, &wm8750_dai, 1); |
|
return ret; |
|
} |
|
|
|
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", |
|
.of_match_table = wm8750_of_match, |
|
}, |
|
.probe = wm8750_i2c_probe, |
|
.id_table = wm8750_i2c_id, |
|
}; |
|
#endif |
|
|
|
static int __init wm8750_modinit(void) |
|
{ |
|
int ret = 0; |
|
#if IS_ENABLED(CONFIG_I2C) |
|
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 IS_ENABLED(CONFIG_I2C) |
|
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");
|
|
|