870 lines
25 KiB
C
870 lines
25 KiB
C
/*
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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 <richard@openedhand.com>
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*
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* Based on WM8753.c
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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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/platform_device.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 u16 wm8750_reg[] = {
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0x0097, 0x0097, 0x0079, 0x0079, /* 0 */
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0x0000, 0x0008, 0x0000, 0x000a, /* 4 */
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0x0000, 0x0000, 0x00ff, 0x00ff, /* 8 */
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0x000f, 0x000f, 0x0000, 0x0000, /* 12 */
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0x0000, 0x007b, 0x0000, 0x0032, /* 16 */
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0x0000, 0x00c3, 0x00c3, 0x00c0, /* 20 */
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0x0000, 0x0000, 0x0000, 0x0000, /* 24 */
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0x0000, 0x0000, 0x0000, 0x0000, /* 28 */
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0x0000, 0x0000, 0x0050, 0x0050, /* 32 */
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0x0050, 0x0050, 0x0050, 0x0050, /* 36 */
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0x0079, 0x0079, 0x0079, /* 40 */
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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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enum snd_soc_control_type control_type;
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};
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#define wm8750_reset(c) snd_soc_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_OUTPUT("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 audio_map[] = {
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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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/* 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"},
|
|
{"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) {
|
|
snd_soc_cache_sync(codec);
|
|
|
|
/* 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)
|
|
{
|
|
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 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 */
|
|
snd_soc_update_bits(codec, WM8750_LDAC, 0x0100, 0x0100);
|
|
snd_soc_update_bits(codec, WM8750_RDAC, 0x0100, 0x0100);
|
|
snd_soc_update_bits(codec, WM8750_LOUT1V, 0x0100, 0x0100);
|
|
snd_soc_update_bits(codec, WM8750_ROUT1V, 0x0100, 0x0100);
|
|
snd_soc_update_bits(codec, WM8750_LOUT2V, 0x0100, 0x0100);
|
|
snd_soc_update_bits(codec, WM8750_ROUT2V, 0x0100, 0x0100);
|
|
snd_soc_update_bits(codec, WM8750_LINVOL, 0x0100, 0x0100);
|
|
snd_soc_update_bits(codec, WM8750_RINVOL, 0x0100, 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,
|
|
};
|
|
|
|
static const struct of_device_id wm8750_of_match[] = {
|
|
{ .compatible = "wlf,wm8750", },
|
|
{ .compatible = "wlf,wm8987", },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, wm8750_of_match);
|
|
|
|
#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 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",
|
|
.owner = THIS_MODULE,
|
|
.of_match_table = wm8750_of_match,
|
|
},
|
|
.id_table = wm8750_spi_ids,
|
|
.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",
|
|
.owner = THIS_MODULE,
|
|
.of_match_table = wm8750_of_match,
|
|
},
|
|
.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");
|