15409fb4eSMark Brown /* 25409fb4eSMark Brown * wm8988.c -- WM8988 ALSA SoC audio driver 35409fb4eSMark Brown * 45409fb4eSMark Brown * Copyright 2009 Wolfson Microelectronics plc 55409fb4eSMark Brown * Copyright 2005 Openedhand Ltd. 65409fb4eSMark Brown * 75409fb4eSMark Brown * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> 85409fb4eSMark Brown * 95409fb4eSMark Brown * This program is free software; you can redistribute it and/or modify 105409fb4eSMark Brown * it under the terms of the GNU General Public License version 2 as 115409fb4eSMark Brown * published by the Free Software Foundation. 125409fb4eSMark Brown */ 135409fb4eSMark Brown 145409fb4eSMark Brown #include <linux/module.h> 155409fb4eSMark Brown #include <linux/moduleparam.h> 165409fb4eSMark Brown #include <linux/init.h> 175409fb4eSMark Brown #include <linux/delay.h> 185409fb4eSMark Brown #include <linux/pm.h> 195409fb4eSMark Brown #include <linux/i2c.h> 205409fb4eSMark Brown #include <linux/spi/spi.h> 215409fb4eSMark Brown #include <linux/platform_device.h> 225a0e3ad6STejun Heo #include <linux/slab.h> 235409fb4eSMark Brown #include <sound/core.h> 245409fb4eSMark Brown #include <sound/pcm.h> 255409fb4eSMark Brown #include <sound/pcm_params.h> 265409fb4eSMark Brown #include <sound/tlv.h> 275409fb4eSMark Brown #include <sound/soc.h> 285409fb4eSMark Brown #include <sound/initval.h> 295409fb4eSMark Brown 305409fb4eSMark Brown #include "wm8988.h" 315409fb4eSMark Brown 325409fb4eSMark Brown /* 335409fb4eSMark Brown * wm8988 register cache 345409fb4eSMark Brown * We can't read the WM8988 register space when we 355409fb4eSMark Brown * are using 2 wire for device control, so we cache them instead. 365409fb4eSMark Brown */ 375409fb4eSMark Brown static const u16 wm8988_reg[] = { 385409fb4eSMark Brown 0x0097, 0x0097, 0x0079, 0x0079, /* 0 */ 395409fb4eSMark Brown 0x0000, 0x0008, 0x0000, 0x000a, /* 4 */ 405409fb4eSMark Brown 0x0000, 0x0000, 0x00ff, 0x00ff, /* 8 */ 415409fb4eSMark Brown 0x000f, 0x000f, 0x0000, 0x0000, /* 12 */ 425409fb4eSMark Brown 0x0000, 0x007b, 0x0000, 0x0032, /* 16 */ 435409fb4eSMark Brown 0x0000, 0x00c3, 0x00c3, 0x00c0, /* 20 */ 445409fb4eSMark Brown 0x0000, 0x0000, 0x0000, 0x0000, /* 24 */ 455409fb4eSMark Brown 0x0000, 0x0000, 0x0000, 0x0000, /* 28 */ 465409fb4eSMark Brown 0x0000, 0x0000, 0x0050, 0x0050, /* 32 */ 475409fb4eSMark Brown 0x0050, 0x0050, 0x0050, 0x0050, /* 36 */ 485409fb4eSMark Brown 0x0079, 0x0079, 0x0079, /* 40 */ 495409fb4eSMark Brown }; 505409fb4eSMark Brown 515409fb4eSMark Brown /* codec private data */ 525409fb4eSMark Brown struct wm8988_priv { 535409fb4eSMark Brown unsigned int sysclk; 54f0fba2adSLiam Girdwood enum snd_soc_control_type control_type; 555409fb4eSMark Brown struct snd_pcm_hw_constraint_list *sysclk_constraints; 565409fb4eSMark Brown }; 575409fb4eSMark Brown 5817a52fd6SMark Brown #define wm8988_reset(c) snd_soc_write(c, WM8988_RESET, 0) 595409fb4eSMark Brown 605409fb4eSMark Brown /* 615409fb4eSMark Brown * WM8988 Controls 625409fb4eSMark Brown */ 635409fb4eSMark Brown 645409fb4eSMark Brown static const char *bass_boost_txt[] = {"Linear Control", "Adaptive Boost"}; 655409fb4eSMark Brown static const struct soc_enum bass_boost = 665409fb4eSMark Brown SOC_ENUM_SINGLE(WM8988_BASS, 7, 2, bass_boost_txt); 675409fb4eSMark Brown 685409fb4eSMark Brown static const char *bass_filter_txt[] = { "130Hz @ 48kHz", "200Hz @ 48kHz" }; 695409fb4eSMark Brown static const struct soc_enum bass_filter = 705409fb4eSMark Brown SOC_ENUM_SINGLE(WM8988_BASS, 6, 2, bass_filter_txt); 715409fb4eSMark Brown 725409fb4eSMark Brown static const char *treble_txt[] = {"8kHz", "4kHz"}; 735409fb4eSMark Brown static const struct soc_enum treble = 745409fb4eSMark Brown SOC_ENUM_SINGLE(WM8988_TREBLE, 6, 2, treble_txt); 755409fb4eSMark Brown 765409fb4eSMark Brown static const char *stereo_3d_lc_txt[] = {"200Hz", "500Hz"}; 775409fb4eSMark Brown static const struct soc_enum stereo_3d_lc = 785409fb4eSMark Brown SOC_ENUM_SINGLE(WM8988_3D, 5, 2, stereo_3d_lc_txt); 795409fb4eSMark Brown 805409fb4eSMark Brown static const char *stereo_3d_uc_txt[] = {"2.2kHz", "1.5kHz"}; 815409fb4eSMark Brown static const struct soc_enum stereo_3d_uc = 825409fb4eSMark Brown SOC_ENUM_SINGLE(WM8988_3D, 6, 2, stereo_3d_uc_txt); 835409fb4eSMark Brown 845409fb4eSMark Brown static const char *stereo_3d_func_txt[] = {"Capture", "Playback"}; 855409fb4eSMark Brown static const struct soc_enum stereo_3d_func = 865409fb4eSMark Brown SOC_ENUM_SINGLE(WM8988_3D, 7, 2, stereo_3d_func_txt); 875409fb4eSMark Brown 885409fb4eSMark Brown static const char *alc_func_txt[] = {"Off", "Right", "Left", "Stereo"}; 895409fb4eSMark Brown static const struct soc_enum alc_func = 905409fb4eSMark Brown SOC_ENUM_SINGLE(WM8988_ALC1, 7, 4, alc_func_txt); 915409fb4eSMark Brown 925409fb4eSMark Brown static const char *ng_type_txt[] = {"Constant PGA Gain", 935409fb4eSMark Brown "Mute ADC Output"}; 945409fb4eSMark Brown static const struct soc_enum ng_type = 955409fb4eSMark Brown SOC_ENUM_SINGLE(WM8988_NGATE, 1, 2, ng_type_txt); 965409fb4eSMark Brown 975409fb4eSMark Brown static const char *deemph_txt[] = {"None", "32Khz", "44.1Khz", "48Khz"}; 985409fb4eSMark Brown static const struct soc_enum deemph = 995409fb4eSMark Brown SOC_ENUM_SINGLE(WM8988_ADCDAC, 1, 4, deemph_txt); 1005409fb4eSMark Brown 1015409fb4eSMark Brown static const char *adcpol_txt[] = {"Normal", "L Invert", "R Invert", 1025409fb4eSMark Brown "L + R Invert"}; 1035409fb4eSMark Brown static const struct soc_enum adcpol = 1045409fb4eSMark Brown SOC_ENUM_SINGLE(WM8988_ADCDAC, 5, 4, adcpol_txt); 1055409fb4eSMark Brown 1065409fb4eSMark Brown static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0); 1075409fb4eSMark Brown static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1); 1085409fb4eSMark Brown static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1); 1095409fb4eSMark Brown static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); 1105409fb4eSMark Brown static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0); 1115409fb4eSMark Brown 1125409fb4eSMark Brown static const struct snd_kcontrol_new wm8988_snd_controls[] = { 1135409fb4eSMark Brown 1145409fb4eSMark Brown SOC_ENUM("Bass Boost", bass_boost), 1155409fb4eSMark Brown SOC_ENUM("Bass Filter", bass_filter), 1165409fb4eSMark Brown SOC_SINGLE("Bass Volume", WM8988_BASS, 0, 15, 1), 1175409fb4eSMark Brown 1185409fb4eSMark Brown SOC_SINGLE("Treble Volume", WM8988_TREBLE, 0, 15, 0), 1195409fb4eSMark Brown SOC_ENUM("Treble Cut-off", treble), 1205409fb4eSMark Brown 1215409fb4eSMark Brown SOC_SINGLE("3D Switch", WM8988_3D, 0, 1, 0), 1225409fb4eSMark Brown SOC_SINGLE("3D Volume", WM8988_3D, 1, 15, 0), 1235409fb4eSMark Brown SOC_ENUM("3D Lower Cut-off", stereo_3d_lc), 1245409fb4eSMark Brown SOC_ENUM("3D Upper Cut-off", stereo_3d_uc), 1255409fb4eSMark Brown SOC_ENUM("3D Mode", stereo_3d_func), 1265409fb4eSMark Brown 1275409fb4eSMark Brown SOC_SINGLE("ALC Capture Target Volume", WM8988_ALC1, 0, 7, 0), 1285409fb4eSMark Brown SOC_SINGLE("ALC Capture Max Volume", WM8988_ALC1, 4, 7, 0), 1295409fb4eSMark Brown SOC_ENUM("ALC Capture Function", alc_func), 1305409fb4eSMark Brown SOC_SINGLE("ALC Capture ZC Switch", WM8988_ALC2, 7, 1, 0), 1315409fb4eSMark Brown SOC_SINGLE("ALC Capture Hold Time", WM8988_ALC2, 0, 15, 0), 1325409fb4eSMark Brown SOC_SINGLE("ALC Capture Decay Time", WM8988_ALC3, 4, 15, 0), 1335409fb4eSMark Brown SOC_SINGLE("ALC Capture Attack Time", WM8988_ALC3, 0, 15, 0), 1345409fb4eSMark Brown SOC_SINGLE("ALC Capture NG Threshold", WM8988_NGATE, 3, 31, 0), 1355409fb4eSMark Brown SOC_ENUM("ALC Capture NG Type", ng_type), 1365409fb4eSMark Brown SOC_SINGLE("ALC Capture NG Switch", WM8988_NGATE, 0, 1, 0), 1375409fb4eSMark Brown 1385409fb4eSMark Brown SOC_SINGLE("ZC Timeout Switch", WM8988_ADCTL1, 0, 1, 0), 1395409fb4eSMark Brown 1405409fb4eSMark Brown SOC_DOUBLE_R_TLV("Capture Digital Volume", WM8988_LADC, WM8988_RADC, 1415409fb4eSMark Brown 0, 255, 0, adc_tlv), 1425409fb4eSMark Brown SOC_DOUBLE_R_TLV("Capture Volume", WM8988_LINVOL, WM8988_RINVOL, 1435409fb4eSMark Brown 0, 63, 0, pga_tlv), 1445409fb4eSMark Brown SOC_DOUBLE_R("Capture ZC Switch", WM8988_LINVOL, WM8988_RINVOL, 6, 1, 0), 1455409fb4eSMark Brown SOC_DOUBLE_R("Capture Switch", WM8988_LINVOL, WM8988_RINVOL, 7, 1, 1), 1465409fb4eSMark Brown 1475409fb4eSMark Brown SOC_ENUM("Playback De-emphasis", deemph), 1485409fb4eSMark Brown 1495409fb4eSMark Brown SOC_ENUM("Capture Polarity", adcpol), 1505409fb4eSMark Brown SOC_SINGLE("Playback 6dB Attenuate", WM8988_ADCDAC, 7, 1, 0), 1515409fb4eSMark Brown SOC_SINGLE("Capture 6dB Attenuate", WM8988_ADCDAC, 8, 1, 0), 1525409fb4eSMark Brown 1535409fb4eSMark Brown SOC_DOUBLE_R_TLV("PCM Volume", WM8988_LDAC, WM8988_RDAC, 0, 255, 0, dac_tlv), 1545409fb4eSMark Brown 1555409fb4eSMark Brown SOC_SINGLE_TLV("Left Mixer Left Bypass Volume", WM8988_LOUTM1, 4, 7, 1, 1565409fb4eSMark Brown bypass_tlv), 1575409fb4eSMark Brown SOC_SINGLE_TLV("Left Mixer Right Bypass Volume", WM8988_LOUTM2, 4, 7, 1, 1585409fb4eSMark Brown bypass_tlv), 1595409fb4eSMark Brown SOC_SINGLE_TLV("Right Mixer Left Bypass Volume", WM8988_ROUTM1, 4, 7, 1, 1605409fb4eSMark Brown bypass_tlv), 1615409fb4eSMark Brown SOC_SINGLE_TLV("Right Mixer Right Bypass Volume", WM8988_ROUTM2, 4, 7, 1, 1625409fb4eSMark Brown bypass_tlv), 1635409fb4eSMark Brown 1645409fb4eSMark Brown SOC_DOUBLE_R("Output 1 Playback ZC Switch", WM8988_LOUT1V, 1655409fb4eSMark Brown WM8988_ROUT1V, 7, 1, 0), 1665409fb4eSMark Brown SOC_DOUBLE_R_TLV("Output 1 Playback Volume", WM8988_LOUT1V, WM8988_ROUT1V, 1675409fb4eSMark Brown 0, 127, 0, out_tlv), 1685409fb4eSMark Brown 1695409fb4eSMark Brown SOC_DOUBLE_R("Output 2 Playback ZC Switch", WM8988_LOUT2V, 1705409fb4eSMark Brown WM8988_ROUT2V, 7, 1, 0), 1715409fb4eSMark Brown SOC_DOUBLE_R_TLV("Output 2 Playback Volume", WM8988_LOUT2V, WM8988_ROUT2V, 1725409fb4eSMark Brown 0, 127, 0, out_tlv), 1735409fb4eSMark Brown 1745409fb4eSMark Brown }; 1755409fb4eSMark Brown 1765409fb4eSMark Brown /* 1775409fb4eSMark Brown * DAPM Controls 1785409fb4eSMark Brown */ 1795409fb4eSMark Brown 1805409fb4eSMark Brown static int wm8988_lrc_control(struct snd_soc_dapm_widget *w, 1815409fb4eSMark Brown struct snd_kcontrol *kcontrol, int event) 1825409fb4eSMark Brown { 1835409fb4eSMark Brown struct snd_soc_codec *codec = w->codec; 18417a52fd6SMark Brown u16 adctl2 = snd_soc_read(codec, WM8988_ADCTL2); 1855409fb4eSMark Brown 1865409fb4eSMark Brown /* Use the DAC to gate LRC if active, otherwise use ADC */ 18717a52fd6SMark Brown if (snd_soc_read(codec, WM8988_PWR2) & 0x180) 1885409fb4eSMark Brown adctl2 &= ~0x4; 1895409fb4eSMark Brown else 1905409fb4eSMark Brown adctl2 |= 0x4; 1915409fb4eSMark Brown 19217a52fd6SMark Brown return snd_soc_write(codec, WM8988_ADCTL2, adctl2); 1935409fb4eSMark Brown } 1945409fb4eSMark Brown 1955409fb4eSMark Brown static const char *wm8988_line_texts[] = { 1965409fb4eSMark Brown "Line 1", "Line 2", "PGA", "Differential"}; 1975409fb4eSMark Brown 1985409fb4eSMark Brown static const unsigned int wm8988_line_values[] = { 1995409fb4eSMark Brown 0, 1, 3, 4}; 2005409fb4eSMark Brown 2015409fb4eSMark Brown static const struct soc_enum wm8988_lline_enum = 2025409fb4eSMark Brown SOC_VALUE_ENUM_SINGLE(WM8988_LOUTM1, 0, 7, 2035409fb4eSMark Brown ARRAY_SIZE(wm8988_line_texts), 2045409fb4eSMark Brown wm8988_line_texts, 2055409fb4eSMark Brown wm8988_line_values); 2065409fb4eSMark Brown static const struct snd_kcontrol_new wm8988_left_line_controls = 2075409fb4eSMark Brown SOC_DAPM_VALUE_ENUM("Route", wm8988_lline_enum); 2085409fb4eSMark Brown 2095409fb4eSMark Brown static const struct soc_enum wm8988_rline_enum = 2105409fb4eSMark Brown SOC_VALUE_ENUM_SINGLE(WM8988_ROUTM1, 0, 7, 2115409fb4eSMark Brown ARRAY_SIZE(wm8988_line_texts), 2125409fb4eSMark Brown wm8988_line_texts, 2135409fb4eSMark Brown wm8988_line_values); 2145409fb4eSMark Brown static const struct snd_kcontrol_new wm8988_right_line_controls = 2155409fb4eSMark Brown SOC_DAPM_VALUE_ENUM("Route", wm8988_lline_enum); 2165409fb4eSMark Brown 2175409fb4eSMark Brown /* Left Mixer */ 2185409fb4eSMark Brown static const struct snd_kcontrol_new wm8988_left_mixer_controls[] = { 2195409fb4eSMark Brown SOC_DAPM_SINGLE("Playback Switch", WM8988_LOUTM1, 8, 1, 0), 2205409fb4eSMark Brown SOC_DAPM_SINGLE("Left Bypass Switch", WM8988_LOUTM1, 7, 1, 0), 2215409fb4eSMark Brown SOC_DAPM_SINGLE("Right Playback Switch", WM8988_LOUTM2, 8, 1, 0), 2225409fb4eSMark Brown SOC_DAPM_SINGLE("Right Bypass Switch", WM8988_LOUTM2, 7, 1, 0), 2235409fb4eSMark Brown }; 2245409fb4eSMark Brown 2255409fb4eSMark Brown /* Right Mixer */ 2265409fb4eSMark Brown static const struct snd_kcontrol_new wm8988_right_mixer_controls[] = { 2275409fb4eSMark Brown SOC_DAPM_SINGLE("Left Playback Switch", WM8988_ROUTM1, 8, 1, 0), 2285409fb4eSMark Brown SOC_DAPM_SINGLE("Left Bypass Switch", WM8988_ROUTM1, 7, 1, 0), 2295409fb4eSMark Brown SOC_DAPM_SINGLE("Playback Switch", WM8988_ROUTM2, 8, 1, 0), 2305409fb4eSMark Brown SOC_DAPM_SINGLE("Right Bypass Switch", WM8988_ROUTM2, 7, 1, 0), 2315409fb4eSMark Brown }; 2325409fb4eSMark Brown 2335409fb4eSMark Brown static const char *wm8988_pga_sel[] = {"Line 1", "Line 2", "Differential"}; 2345409fb4eSMark Brown static const unsigned int wm8988_pga_val[] = { 0, 1, 3 }; 2355409fb4eSMark Brown 2365409fb4eSMark Brown /* Left PGA Mux */ 2375409fb4eSMark Brown static const struct soc_enum wm8988_lpga_enum = 2385409fb4eSMark Brown SOC_VALUE_ENUM_SINGLE(WM8988_LADCIN, 6, 3, 2395409fb4eSMark Brown ARRAY_SIZE(wm8988_pga_sel), 2405409fb4eSMark Brown wm8988_pga_sel, 2415409fb4eSMark Brown wm8988_pga_val); 2425409fb4eSMark Brown static const struct snd_kcontrol_new wm8988_left_pga_controls = 2435409fb4eSMark Brown SOC_DAPM_VALUE_ENUM("Route", wm8988_lpga_enum); 2445409fb4eSMark Brown 2455409fb4eSMark Brown /* Right PGA Mux */ 2465409fb4eSMark Brown static const struct soc_enum wm8988_rpga_enum = 2475409fb4eSMark Brown SOC_VALUE_ENUM_SINGLE(WM8988_RADCIN, 6, 3, 2485409fb4eSMark Brown ARRAY_SIZE(wm8988_pga_sel), 2495409fb4eSMark Brown wm8988_pga_sel, 2505409fb4eSMark Brown wm8988_pga_val); 2515409fb4eSMark Brown static const struct snd_kcontrol_new wm8988_right_pga_controls = 2525409fb4eSMark Brown SOC_DAPM_VALUE_ENUM("Route", wm8988_rpga_enum); 2535409fb4eSMark Brown 2545409fb4eSMark Brown /* Differential Mux */ 2555409fb4eSMark Brown static const char *wm8988_diff_sel[] = {"Line 1", "Line 2"}; 2565409fb4eSMark Brown static const struct soc_enum diffmux = 2575409fb4eSMark Brown SOC_ENUM_SINGLE(WM8988_ADCIN, 8, 2, wm8988_diff_sel); 2585409fb4eSMark Brown static const struct snd_kcontrol_new wm8988_diffmux_controls = 2595409fb4eSMark Brown SOC_DAPM_ENUM("Route", diffmux); 2605409fb4eSMark Brown 2615409fb4eSMark Brown /* Mono ADC Mux */ 2625409fb4eSMark Brown static const char *wm8988_mono_mux[] = {"Stereo", "Mono (Left)", 2635409fb4eSMark Brown "Mono (Right)", "Digital Mono"}; 2645409fb4eSMark Brown static const struct soc_enum monomux = 2655409fb4eSMark Brown SOC_ENUM_SINGLE(WM8988_ADCIN, 6, 4, wm8988_mono_mux); 2665409fb4eSMark Brown static const struct snd_kcontrol_new wm8988_monomux_controls = 2675409fb4eSMark Brown SOC_DAPM_ENUM("Route", monomux); 2685409fb4eSMark Brown 2695409fb4eSMark Brown static const struct snd_soc_dapm_widget wm8988_dapm_widgets[] = { 2705409fb4eSMark Brown SND_SOC_DAPM_MICBIAS("Mic Bias", WM8988_PWR1, 1, 0), 2715409fb4eSMark Brown 2725409fb4eSMark Brown SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0, 2735409fb4eSMark Brown &wm8988_diffmux_controls), 2745409fb4eSMark Brown SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0, 2755409fb4eSMark Brown &wm8988_monomux_controls), 2765409fb4eSMark Brown SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0, 2775409fb4eSMark Brown &wm8988_monomux_controls), 2785409fb4eSMark Brown 2795409fb4eSMark Brown SND_SOC_DAPM_MUX("Left PGA Mux", WM8988_PWR1, 5, 0, 2805409fb4eSMark Brown &wm8988_left_pga_controls), 2815409fb4eSMark Brown SND_SOC_DAPM_MUX("Right PGA Mux", WM8988_PWR1, 4, 0, 2825409fb4eSMark Brown &wm8988_right_pga_controls), 2835409fb4eSMark Brown 2845409fb4eSMark Brown SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0, 2855409fb4eSMark Brown &wm8988_left_line_controls), 2865409fb4eSMark Brown SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0, 2875409fb4eSMark Brown &wm8988_right_line_controls), 2885409fb4eSMark Brown 2895409fb4eSMark Brown SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8988_PWR1, 2, 0), 2905409fb4eSMark Brown SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8988_PWR1, 3, 0), 2915409fb4eSMark Brown 2925409fb4eSMark Brown SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8988_PWR2, 7, 0), 2935409fb4eSMark Brown SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8988_PWR2, 8, 0), 2945409fb4eSMark Brown 2955409fb4eSMark Brown SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0, 2965409fb4eSMark Brown &wm8988_left_mixer_controls[0], 2975409fb4eSMark Brown ARRAY_SIZE(wm8988_left_mixer_controls)), 2985409fb4eSMark Brown SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0, 2995409fb4eSMark Brown &wm8988_right_mixer_controls[0], 3005409fb4eSMark Brown ARRAY_SIZE(wm8988_right_mixer_controls)), 3015409fb4eSMark Brown 3025409fb4eSMark Brown SND_SOC_DAPM_PGA("Right Out 2", WM8988_PWR2, 3, 0, NULL, 0), 3035409fb4eSMark Brown SND_SOC_DAPM_PGA("Left Out 2", WM8988_PWR2, 4, 0, NULL, 0), 3045409fb4eSMark Brown SND_SOC_DAPM_PGA("Right Out 1", WM8988_PWR2, 5, 0, NULL, 0), 3055409fb4eSMark Brown SND_SOC_DAPM_PGA("Left Out 1", WM8988_PWR2, 6, 0, NULL, 0), 3065409fb4eSMark Brown 3075409fb4eSMark Brown SND_SOC_DAPM_POST("LRC control", wm8988_lrc_control), 3085409fb4eSMark Brown 3095409fb4eSMark Brown SND_SOC_DAPM_OUTPUT("LOUT1"), 3105409fb4eSMark Brown SND_SOC_DAPM_OUTPUT("ROUT1"), 3115409fb4eSMark Brown SND_SOC_DAPM_OUTPUT("LOUT2"), 3125409fb4eSMark Brown SND_SOC_DAPM_OUTPUT("ROUT2"), 3135409fb4eSMark Brown SND_SOC_DAPM_OUTPUT("VREF"), 3145409fb4eSMark Brown 3155409fb4eSMark Brown SND_SOC_DAPM_INPUT("LINPUT1"), 3165409fb4eSMark Brown SND_SOC_DAPM_INPUT("LINPUT2"), 3175409fb4eSMark Brown SND_SOC_DAPM_INPUT("RINPUT1"), 3185409fb4eSMark Brown SND_SOC_DAPM_INPUT("RINPUT2"), 3195409fb4eSMark Brown }; 3205409fb4eSMark Brown 3215409fb4eSMark Brown static const struct snd_soc_dapm_route audio_map[] = { 3225409fb4eSMark Brown 3235409fb4eSMark Brown { "Left Line Mux", "Line 1", "LINPUT1" }, 3245409fb4eSMark Brown { "Left Line Mux", "Line 2", "LINPUT2" }, 3255409fb4eSMark Brown { "Left Line Mux", "PGA", "Left PGA Mux" }, 3265409fb4eSMark Brown { "Left Line Mux", "Differential", "Differential Mux" }, 3275409fb4eSMark Brown 3285409fb4eSMark Brown { "Right Line Mux", "Line 1", "RINPUT1" }, 3295409fb4eSMark Brown { "Right Line Mux", "Line 2", "RINPUT2" }, 3305409fb4eSMark Brown { "Right Line Mux", "PGA", "Right PGA Mux" }, 3315409fb4eSMark Brown { "Right Line Mux", "Differential", "Differential Mux" }, 3325409fb4eSMark Brown 3335409fb4eSMark Brown { "Left PGA Mux", "Line 1", "LINPUT1" }, 3345409fb4eSMark Brown { "Left PGA Mux", "Line 2", "LINPUT2" }, 3355409fb4eSMark Brown { "Left PGA Mux", "Differential", "Differential Mux" }, 3365409fb4eSMark Brown 3375409fb4eSMark Brown { "Right PGA Mux", "Line 1", "RINPUT1" }, 3385409fb4eSMark Brown { "Right PGA Mux", "Line 2", "RINPUT2" }, 3395409fb4eSMark Brown { "Right PGA Mux", "Differential", "Differential Mux" }, 3405409fb4eSMark Brown 3415409fb4eSMark Brown { "Differential Mux", "Line 1", "LINPUT1" }, 3425409fb4eSMark Brown { "Differential Mux", "Line 1", "RINPUT1" }, 3435409fb4eSMark Brown { "Differential Mux", "Line 2", "LINPUT2" }, 3445409fb4eSMark Brown { "Differential Mux", "Line 2", "RINPUT2" }, 3455409fb4eSMark Brown 3465409fb4eSMark Brown { "Left ADC Mux", "Stereo", "Left PGA Mux" }, 3475409fb4eSMark Brown { "Left ADC Mux", "Mono (Left)", "Left PGA Mux" }, 3485409fb4eSMark Brown { "Left ADC Mux", "Digital Mono", "Left PGA Mux" }, 3495409fb4eSMark Brown 3505409fb4eSMark Brown { "Right ADC Mux", "Stereo", "Right PGA Mux" }, 3515409fb4eSMark Brown { "Right ADC Mux", "Mono (Right)", "Right PGA Mux" }, 3525409fb4eSMark Brown { "Right ADC Mux", "Digital Mono", "Right PGA Mux" }, 3535409fb4eSMark Brown 3545409fb4eSMark Brown { "Left ADC", NULL, "Left ADC Mux" }, 3555409fb4eSMark Brown { "Right ADC", NULL, "Right ADC Mux" }, 3565409fb4eSMark Brown 3575409fb4eSMark Brown { "Left Line Mux", "Line 1", "LINPUT1" }, 3585409fb4eSMark Brown { "Left Line Mux", "Line 2", "LINPUT2" }, 3595409fb4eSMark Brown { "Left Line Mux", "PGA", "Left PGA Mux" }, 3605409fb4eSMark Brown { "Left Line Mux", "Differential", "Differential Mux" }, 3615409fb4eSMark Brown 3625409fb4eSMark Brown { "Right Line Mux", "Line 1", "RINPUT1" }, 3635409fb4eSMark Brown { "Right Line Mux", "Line 2", "RINPUT2" }, 3645409fb4eSMark Brown { "Right Line Mux", "PGA", "Right PGA Mux" }, 3655409fb4eSMark Brown { "Right Line Mux", "Differential", "Differential Mux" }, 3665409fb4eSMark Brown 3675409fb4eSMark Brown { "Left Mixer", "Playback Switch", "Left DAC" }, 3685409fb4eSMark Brown { "Left Mixer", "Left Bypass Switch", "Left Line Mux" }, 3695409fb4eSMark Brown { "Left Mixer", "Right Playback Switch", "Right DAC" }, 3705409fb4eSMark Brown { "Left Mixer", "Right Bypass Switch", "Right Line Mux" }, 3715409fb4eSMark Brown 3725409fb4eSMark Brown { "Right Mixer", "Left Playback Switch", "Left DAC" }, 3735409fb4eSMark Brown { "Right Mixer", "Left Bypass Switch", "Left Line Mux" }, 3745409fb4eSMark Brown { "Right Mixer", "Playback Switch", "Right DAC" }, 3755409fb4eSMark Brown { "Right Mixer", "Right Bypass Switch", "Right Line Mux" }, 3765409fb4eSMark Brown 3775409fb4eSMark Brown { "Left Out 1", NULL, "Left Mixer" }, 3785409fb4eSMark Brown { "LOUT1", NULL, "Left Out 1" }, 3795409fb4eSMark Brown { "Right Out 1", NULL, "Right Mixer" }, 3805409fb4eSMark Brown { "ROUT1", NULL, "Right Out 1" }, 3815409fb4eSMark Brown 3825409fb4eSMark Brown { "Left Out 2", NULL, "Left Mixer" }, 3835409fb4eSMark Brown { "LOUT2", NULL, "Left Out 2" }, 3845409fb4eSMark Brown { "Right Out 2", NULL, "Right Mixer" }, 3855409fb4eSMark Brown { "ROUT2", NULL, "Right Out 2" }, 3865409fb4eSMark Brown }; 3875409fb4eSMark Brown 3885409fb4eSMark Brown struct _coeff_div { 3895409fb4eSMark Brown u32 mclk; 3905409fb4eSMark Brown u32 rate; 3915409fb4eSMark Brown u16 fs; 3925409fb4eSMark Brown u8 sr:5; 3935409fb4eSMark Brown u8 usb:1; 3945409fb4eSMark Brown }; 3955409fb4eSMark Brown 3965409fb4eSMark Brown /* codec hifi mclk clock divider coefficients */ 3975409fb4eSMark Brown static const struct _coeff_div coeff_div[] = { 3985409fb4eSMark Brown /* 8k */ 3995409fb4eSMark Brown {12288000, 8000, 1536, 0x6, 0x0}, 4005409fb4eSMark Brown {11289600, 8000, 1408, 0x16, 0x0}, 4015409fb4eSMark Brown {18432000, 8000, 2304, 0x7, 0x0}, 4025409fb4eSMark Brown {16934400, 8000, 2112, 0x17, 0x0}, 4035409fb4eSMark Brown {12000000, 8000, 1500, 0x6, 0x1}, 4045409fb4eSMark Brown 4055409fb4eSMark Brown /* 11.025k */ 4065409fb4eSMark Brown {11289600, 11025, 1024, 0x18, 0x0}, 4075409fb4eSMark Brown {16934400, 11025, 1536, 0x19, 0x0}, 4085409fb4eSMark Brown {12000000, 11025, 1088, 0x19, 0x1}, 4095409fb4eSMark Brown 4105409fb4eSMark Brown /* 16k */ 4115409fb4eSMark Brown {12288000, 16000, 768, 0xa, 0x0}, 4125409fb4eSMark Brown {18432000, 16000, 1152, 0xb, 0x0}, 4135409fb4eSMark Brown {12000000, 16000, 750, 0xa, 0x1}, 4145409fb4eSMark Brown 4155409fb4eSMark Brown /* 22.05k */ 4165409fb4eSMark Brown {11289600, 22050, 512, 0x1a, 0x0}, 4175409fb4eSMark Brown {16934400, 22050, 768, 0x1b, 0x0}, 4185409fb4eSMark Brown {12000000, 22050, 544, 0x1b, 0x1}, 4195409fb4eSMark Brown 4205409fb4eSMark Brown /* 32k */ 4215409fb4eSMark Brown {12288000, 32000, 384, 0xc, 0x0}, 4225409fb4eSMark Brown {18432000, 32000, 576, 0xd, 0x0}, 4235409fb4eSMark Brown {12000000, 32000, 375, 0xa, 0x1}, 4245409fb4eSMark Brown 4255409fb4eSMark Brown /* 44.1k */ 4265409fb4eSMark Brown {11289600, 44100, 256, 0x10, 0x0}, 4275409fb4eSMark Brown {16934400, 44100, 384, 0x11, 0x0}, 4285409fb4eSMark Brown {12000000, 44100, 272, 0x11, 0x1}, 4295409fb4eSMark Brown 4305409fb4eSMark Brown /* 48k */ 4315409fb4eSMark Brown {12288000, 48000, 256, 0x0, 0x0}, 4325409fb4eSMark Brown {18432000, 48000, 384, 0x1, 0x0}, 4335409fb4eSMark Brown {12000000, 48000, 250, 0x0, 0x1}, 4345409fb4eSMark Brown 4355409fb4eSMark Brown /* 88.2k */ 4365409fb4eSMark Brown {11289600, 88200, 128, 0x1e, 0x0}, 4375409fb4eSMark Brown {16934400, 88200, 192, 0x1f, 0x0}, 4385409fb4eSMark Brown {12000000, 88200, 136, 0x1f, 0x1}, 4395409fb4eSMark Brown 4405409fb4eSMark Brown /* 96k */ 4415409fb4eSMark Brown {12288000, 96000, 128, 0xe, 0x0}, 4425409fb4eSMark Brown {18432000, 96000, 192, 0xf, 0x0}, 4435409fb4eSMark Brown {12000000, 96000, 125, 0xe, 0x1}, 4445409fb4eSMark Brown }; 4455409fb4eSMark Brown 4465409fb4eSMark Brown static inline int get_coeff(int mclk, int rate) 4475409fb4eSMark Brown { 4485409fb4eSMark Brown int i; 4495409fb4eSMark Brown 4505409fb4eSMark Brown for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { 4515409fb4eSMark Brown if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) 4525409fb4eSMark Brown return i; 4535409fb4eSMark Brown } 4545409fb4eSMark Brown 4555409fb4eSMark Brown return -EINVAL; 4565409fb4eSMark Brown } 4575409fb4eSMark Brown 4585409fb4eSMark Brown /* The set of rates we can generate from the above for each SYSCLK */ 4595409fb4eSMark Brown 4605409fb4eSMark Brown static unsigned int rates_12288[] = { 4615409fb4eSMark Brown 8000, 12000, 16000, 24000, 24000, 32000, 48000, 96000, 4625409fb4eSMark Brown }; 4635409fb4eSMark Brown 4645409fb4eSMark Brown static struct snd_pcm_hw_constraint_list constraints_12288 = { 4655409fb4eSMark Brown .count = ARRAY_SIZE(rates_12288), 4665409fb4eSMark Brown .list = rates_12288, 4675409fb4eSMark Brown }; 4685409fb4eSMark Brown 4695409fb4eSMark Brown static unsigned int rates_112896[] = { 4705409fb4eSMark Brown 8000, 11025, 22050, 44100, 4715409fb4eSMark Brown }; 4725409fb4eSMark Brown 4735409fb4eSMark Brown static struct snd_pcm_hw_constraint_list constraints_112896 = { 4745409fb4eSMark Brown .count = ARRAY_SIZE(rates_112896), 4755409fb4eSMark Brown .list = rates_112896, 4765409fb4eSMark Brown }; 4775409fb4eSMark Brown 4785409fb4eSMark Brown static unsigned int rates_12[] = { 4795409fb4eSMark Brown 8000, 11025, 12000, 16000, 22050, 2400, 32000, 41100, 48000, 4805409fb4eSMark Brown 48000, 88235, 96000, 4815409fb4eSMark Brown }; 4825409fb4eSMark Brown 4835409fb4eSMark Brown static struct snd_pcm_hw_constraint_list constraints_12 = { 4845409fb4eSMark Brown .count = ARRAY_SIZE(rates_12), 4855409fb4eSMark Brown .list = rates_12, 4865409fb4eSMark Brown }; 4875409fb4eSMark Brown 4885409fb4eSMark Brown /* 4895409fb4eSMark Brown * Note that this should be called from init rather than from hw_params. 4905409fb4eSMark Brown */ 4915409fb4eSMark Brown static int wm8988_set_dai_sysclk(struct snd_soc_dai *codec_dai, 4925409fb4eSMark Brown int clk_id, unsigned int freq, int dir) 4935409fb4eSMark Brown { 4945409fb4eSMark Brown struct snd_soc_codec *codec = codec_dai->codec; 495b2c812e2SMark Brown struct wm8988_priv *wm8988 = snd_soc_codec_get_drvdata(codec); 4965409fb4eSMark Brown 4975409fb4eSMark Brown switch (freq) { 4985409fb4eSMark Brown case 11289600: 4995409fb4eSMark Brown case 18432000: 5005409fb4eSMark Brown case 22579200: 5015409fb4eSMark Brown case 36864000: 5025409fb4eSMark Brown wm8988->sysclk_constraints = &constraints_112896; 5035409fb4eSMark Brown wm8988->sysclk = freq; 5045409fb4eSMark Brown return 0; 5055409fb4eSMark Brown 5065409fb4eSMark Brown case 12288000: 5075409fb4eSMark Brown case 16934400: 5085409fb4eSMark Brown case 24576000: 5095409fb4eSMark Brown case 33868800: 5105409fb4eSMark Brown wm8988->sysclk_constraints = &constraints_12288; 5115409fb4eSMark Brown wm8988->sysclk = freq; 5125409fb4eSMark Brown return 0; 5135409fb4eSMark Brown 5145409fb4eSMark Brown case 12000000: 5155409fb4eSMark Brown case 24000000: 5165409fb4eSMark Brown wm8988->sysclk_constraints = &constraints_12; 5175409fb4eSMark Brown wm8988->sysclk = freq; 5185409fb4eSMark Brown return 0; 5195409fb4eSMark Brown } 5205409fb4eSMark Brown return -EINVAL; 5215409fb4eSMark Brown } 5225409fb4eSMark Brown 5235409fb4eSMark Brown static int wm8988_set_dai_fmt(struct snd_soc_dai *codec_dai, 5245409fb4eSMark Brown unsigned int fmt) 5255409fb4eSMark Brown { 5265409fb4eSMark Brown struct snd_soc_codec *codec = codec_dai->codec; 5275409fb4eSMark Brown u16 iface = 0; 5285409fb4eSMark Brown 5295409fb4eSMark Brown /* set master/slave audio interface */ 5305409fb4eSMark Brown switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 5315409fb4eSMark Brown case SND_SOC_DAIFMT_CBM_CFM: 5325409fb4eSMark Brown iface = 0x0040; 5335409fb4eSMark Brown break; 5345409fb4eSMark Brown case SND_SOC_DAIFMT_CBS_CFS: 5355409fb4eSMark Brown break; 5365409fb4eSMark Brown default: 5375409fb4eSMark Brown return -EINVAL; 5385409fb4eSMark Brown } 5395409fb4eSMark Brown 5405409fb4eSMark Brown /* interface format */ 5415409fb4eSMark Brown switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 5425409fb4eSMark Brown case SND_SOC_DAIFMT_I2S: 5435409fb4eSMark Brown iface |= 0x0002; 5445409fb4eSMark Brown break; 5455409fb4eSMark Brown case SND_SOC_DAIFMT_RIGHT_J: 5465409fb4eSMark Brown break; 5475409fb4eSMark Brown case SND_SOC_DAIFMT_LEFT_J: 5485409fb4eSMark Brown iface |= 0x0001; 5495409fb4eSMark Brown break; 5505409fb4eSMark Brown case SND_SOC_DAIFMT_DSP_A: 5515409fb4eSMark Brown iface |= 0x0003; 5525409fb4eSMark Brown break; 5535409fb4eSMark Brown case SND_SOC_DAIFMT_DSP_B: 5545409fb4eSMark Brown iface |= 0x0013; 5555409fb4eSMark Brown break; 5565409fb4eSMark Brown default: 5575409fb4eSMark Brown return -EINVAL; 5585409fb4eSMark Brown } 5595409fb4eSMark Brown 5605409fb4eSMark Brown /* clock inversion */ 5615409fb4eSMark Brown switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 5625409fb4eSMark Brown case SND_SOC_DAIFMT_NB_NF: 5635409fb4eSMark Brown break; 5645409fb4eSMark Brown case SND_SOC_DAIFMT_IB_IF: 5655409fb4eSMark Brown iface |= 0x0090; 5665409fb4eSMark Brown break; 5675409fb4eSMark Brown case SND_SOC_DAIFMT_IB_NF: 5685409fb4eSMark Brown iface |= 0x0080; 5695409fb4eSMark Brown break; 5705409fb4eSMark Brown case SND_SOC_DAIFMT_NB_IF: 5715409fb4eSMark Brown iface |= 0x0010; 5725409fb4eSMark Brown break; 5735409fb4eSMark Brown default: 5745409fb4eSMark Brown return -EINVAL; 5755409fb4eSMark Brown } 5765409fb4eSMark Brown 57717a52fd6SMark Brown snd_soc_write(codec, WM8988_IFACE, iface); 5785409fb4eSMark Brown return 0; 5795409fb4eSMark Brown } 5805409fb4eSMark Brown 5815409fb4eSMark Brown static int wm8988_pcm_startup(struct snd_pcm_substream *substream, 5825409fb4eSMark Brown struct snd_soc_dai *dai) 5835409fb4eSMark Brown { 5845409fb4eSMark Brown struct snd_soc_codec *codec = dai->codec; 585b2c812e2SMark Brown struct wm8988_priv *wm8988 = snd_soc_codec_get_drvdata(codec); 5865409fb4eSMark Brown 5875409fb4eSMark Brown /* The set of sample rates that can be supported depends on the 5885409fb4eSMark Brown * MCLK supplied to the CODEC - enforce this. 5895409fb4eSMark Brown */ 5905409fb4eSMark Brown if (!wm8988->sysclk) { 5915409fb4eSMark Brown dev_err(codec->dev, 5925409fb4eSMark Brown "No MCLK configured, call set_sysclk() on init\n"); 5935409fb4eSMark Brown return -EINVAL; 5945409fb4eSMark Brown } 5955409fb4eSMark Brown 5965409fb4eSMark Brown snd_pcm_hw_constraint_list(substream->runtime, 0, 5975409fb4eSMark Brown SNDRV_PCM_HW_PARAM_RATE, 5985409fb4eSMark Brown wm8988->sysclk_constraints); 5995409fb4eSMark Brown 6005409fb4eSMark Brown return 0; 6015409fb4eSMark Brown } 6025409fb4eSMark Brown 6035409fb4eSMark Brown static int wm8988_pcm_hw_params(struct snd_pcm_substream *substream, 6045409fb4eSMark Brown struct snd_pcm_hw_params *params, 6055409fb4eSMark Brown struct snd_soc_dai *dai) 6065409fb4eSMark Brown { 6075409fb4eSMark Brown struct snd_soc_pcm_runtime *rtd = substream->private_data; 608f0fba2adSLiam Girdwood struct snd_soc_codec *codec = rtd->codec; 609b2c812e2SMark Brown struct wm8988_priv *wm8988 = snd_soc_codec_get_drvdata(codec); 61017a52fd6SMark Brown u16 iface = snd_soc_read(codec, WM8988_IFACE) & 0x1f3; 61117a52fd6SMark Brown u16 srate = snd_soc_read(codec, WM8988_SRATE) & 0x180; 6125409fb4eSMark Brown int coeff; 6135409fb4eSMark Brown 6145409fb4eSMark Brown coeff = get_coeff(wm8988->sysclk, params_rate(params)); 6155409fb4eSMark Brown if (coeff < 0) { 6165409fb4eSMark Brown coeff = get_coeff(wm8988->sysclk / 2, params_rate(params)); 6175409fb4eSMark Brown srate |= 0x40; 6185409fb4eSMark Brown } 6195409fb4eSMark Brown if (coeff < 0) { 6205409fb4eSMark Brown dev_err(codec->dev, 6215409fb4eSMark Brown "Unable to configure sample rate %dHz with %dHz MCLK\n", 6225409fb4eSMark Brown params_rate(params), wm8988->sysclk); 6235409fb4eSMark Brown return coeff; 6245409fb4eSMark Brown } 6255409fb4eSMark Brown 6265409fb4eSMark Brown /* bit size */ 6275409fb4eSMark Brown switch (params_format(params)) { 6285409fb4eSMark Brown case SNDRV_PCM_FORMAT_S16_LE: 6295409fb4eSMark Brown break; 6305409fb4eSMark Brown case SNDRV_PCM_FORMAT_S20_3LE: 6315409fb4eSMark Brown iface |= 0x0004; 6325409fb4eSMark Brown break; 6335409fb4eSMark Brown case SNDRV_PCM_FORMAT_S24_LE: 6345409fb4eSMark Brown iface |= 0x0008; 6355409fb4eSMark Brown break; 6365409fb4eSMark Brown case SNDRV_PCM_FORMAT_S32_LE: 6375409fb4eSMark Brown iface |= 0x000c; 6385409fb4eSMark Brown break; 6395409fb4eSMark Brown } 6405409fb4eSMark Brown 6415409fb4eSMark Brown /* set iface & srate */ 64217a52fd6SMark Brown snd_soc_write(codec, WM8988_IFACE, iface); 6435409fb4eSMark Brown if (coeff >= 0) 64417a52fd6SMark Brown snd_soc_write(codec, WM8988_SRATE, srate | 6455409fb4eSMark Brown (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb); 6465409fb4eSMark Brown 6475409fb4eSMark Brown return 0; 6485409fb4eSMark Brown } 6495409fb4eSMark Brown 6505409fb4eSMark Brown static int wm8988_mute(struct snd_soc_dai *dai, int mute) 6515409fb4eSMark Brown { 6525409fb4eSMark Brown struct snd_soc_codec *codec = dai->codec; 65317a52fd6SMark Brown u16 mute_reg = snd_soc_read(codec, WM8988_ADCDAC) & 0xfff7; 6545409fb4eSMark Brown 6555409fb4eSMark Brown if (mute) 65617a52fd6SMark Brown snd_soc_write(codec, WM8988_ADCDAC, mute_reg | 0x8); 6575409fb4eSMark Brown else 65817a52fd6SMark Brown snd_soc_write(codec, WM8988_ADCDAC, mute_reg); 6595409fb4eSMark Brown return 0; 6605409fb4eSMark Brown } 6615409fb4eSMark Brown 6625409fb4eSMark Brown static int wm8988_set_bias_level(struct snd_soc_codec *codec, 6635409fb4eSMark Brown enum snd_soc_bias_level level) 6645409fb4eSMark Brown { 66517a52fd6SMark Brown u16 pwr_reg = snd_soc_read(codec, WM8988_PWR1) & ~0x1c1; 6665409fb4eSMark Brown 6675409fb4eSMark Brown switch (level) { 6685409fb4eSMark Brown case SND_SOC_BIAS_ON: 6695409fb4eSMark Brown break; 6705409fb4eSMark Brown 6715409fb4eSMark Brown case SND_SOC_BIAS_PREPARE: 6725409fb4eSMark Brown /* VREF, VMID=2x50k, digital enabled */ 67317a52fd6SMark Brown snd_soc_write(codec, WM8988_PWR1, pwr_reg | 0x00c0); 6745409fb4eSMark Brown break; 6755409fb4eSMark Brown 6765409fb4eSMark Brown case SND_SOC_BIAS_STANDBY: 677ce6120ccSLiam Girdwood if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { 678*fa5fdb47SAxel Lin snd_soc_cache_sync(codec); 679*fa5fdb47SAxel Lin 6805409fb4eSMark Brown /* VREF, VMID=2x5k */ 68117a52fd6SMark Brown snd_soc_write(codec, WM8988_PWR1, pwr_reg | 0x1c1); 6825409fb4eSMark Brown 6835409fb4eSMark Brown /* Charge caps */ 6845409fb4eSMark Brown msleep(100); 6855409fb4eSMark Brown } 6865409fb4eSMark Brown 6875409fb4eSMark Brown /* VREF, VMID=2*500k, digital stopped */ 68817a52fd6SMark Brown snd_soc_write(codec, WM8988_PWR1, pwr_reg | 0x0141); 6895409fb4eSMark Brown break; 6905409fb4eSMark Brown 6915409fb4eSMark Brown case SND_SOC_BIAS_OFF: 69217a52fd6SMark Brown snd_soc_write(codec, WM8988_PWR1, 0x0000); 6935409fb4eSMark Brown break; 6945409fb4eSMark Brown } 695ce6120ccSLiam Girdwood codec->dapm.bias_level = level; 6965409fb4eSMark Brown return 0; 6975409fb4eSMark Brown } 6985409fb4eSMark Brown 6995409fb4eSMark Brown #define WM8988_RATES SNDRV_PCM_RATE_8000_96000 7005409fb4eSMark Brown 7015409fb4eSMark Brown #define WM8988_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ 7025409fb4eSMark Brown SNDRV_PCM_FMTBIT_S24_LE) 7035409fb4eSMark Brown 7045409fb4eSMark Brown static struct snd_soc_dai_ops wm8988_ops = { 7055409fb4eSMark Brown .startup = wm8988_pcm_startup, 7065409fb4eSMark Brown .hw_params = wm8988_pcm_hw_params, 7075409fb4eSMark Brown .set_fmt = wm8988_set_dai_fmt, 7085409fb4eSMark Brown .set_sysclk = wm8988_set_dai_sysclk, 7095409fb4eSMark Brown .digital_mute = wm8988_mute, 7105409fb4eSMark Brown }; 7115409fb4eSMark Brown 712f0fba2adSLiam Girdwood static struct snd_soc_dai_driver wm8988_dai = { 713f0fba2adSLiam Girdwood .name = "wm8988-hifi", 7145409fb4eSMark Brown .playback = { 7155409fb4eSMark Brown .stream_name = "Playback", 7165409fb4eSMark Brown .channels_min = 1, 7175409fb4eSMark Brown .channels_max = 2, 7185409fb4eSMark Brown .rates = WM8988_RATES, 7195409fb4eSMark Brown .formats = WM8988_FORMATS, 7205409fb4eSMark Brown }, 7215409fb4eSMark Brown .capture = { 7225409fb4eSMark Brown .stream_name = "Capture", 7235409fb4eSMark Brown .channels_min = 1, 7245409fb4eSMark Brown .channels_max = 2, 7255409fb4eSMark Brown .rates = WM8988_RATES, 7265409fb4eSMark Brown .formats = WM8988_FORMATS, 7275409fb4eSMark Brown }, 7285409fb4eSMark Brown .ops = &wm8988_ops, 7295409fb4eSMark Brown .symmetric_rates = 1, 7305409fb4eSMark Brown }; 7315409fb4eSMark Brown 732f0fba2adSLiam Girdwood static int wm8988_suspend(struct snd_soc_codec *codec, pm_message_t state) 7335409fb4eSMark Brown { 7345409fb4eSMark Brown wm8988_set_bias_level(codec, SND_SOC_BIAS_OFF); 7355409fb4eSMark Brown return 0; 7365409fb4eSMark Brown } 7375409fb4eSMark Brown 738f0fba2adSLiam Girdwood static int wm8988_resume(struct snd_soc_codec *codec) 7395409fb4eSMark Brown { 7405409fb4eSMark Brown wm8988_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 7415409fb4eSMark Brown return 0; 7425409fb4eSMark Brown } 7435409fb4eSMark Brown 744f0fba2adSLiam Girdwood static int wm8988_probe(struct snd_soc_codec *codec) 7455409fb4eSMark Brown { 746f0fba2adSLiam Girdwood struct wm8988_priv *wm8988 = snd_soc_codec_get_drvdata(codec); 747ce6120ccSLiam Girdwood struct snd_soc_dapm_context *dapm = &codec->dapm; 7485409fb4eSMark Brown int ret = 0; 7495409fb4eSMark Brown 750f0fba2adSLiam Girdwood ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8988->control_type); 75117a52fd6SMark Brown if (ret < 0) { 75217a52fd6SMark Brown dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); 753f0fba2adSLiam Girdwood return ret; 75417a52fd6SMark Brown } 75517a52fd6SMark Brown 7565409fb4eSMark Brown ret = wm8988_reset(codec); 7575409fb4eSMark Brown if (ret < 0) { 7585409fb4eSMark Brown dev_err(codec->dev, "Failed to issue reset\n"); 759f0fba2adSLiam Girdwood return ret; 7605409fb4eSMark Brown } 7615409fb4eSMark Brown 7625409fb4eSMark Brown /* set the update bits (we always update left then right) */ 7639cd11326SAxel Lin snd_soc_update_bits(codec, WM8988_RADC, 0x0100, 0x0100); 7649cd11326SAxel Lin snd_soc_update_bits(codec, WM8988_RDAC, 0x0100, 0x0100); 7659cd11326SAxel Lin snd_soc_update_bits(codec, WM8988_ROUT1V, 0x0100, 0x0100); 7669cd11326SAxel Lin snd_soc_update_bits(codec, WM8988_ROUT2V, 0x0100, 0x0100); 7679cd11326SAxel Lin snd_soc_update_bits(codec, WM8988_RINVOL, 0x0100, 0x0100); 7685409fb4eSMark Brown 769f0fba2adSLiam Girdwood wm8988_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 7705409fb4eSMark Brown 771f0fba2adSLiam Girdwood snd_soc_add_controls(codec, wm8988_snd_controls, 772f0fba2adSLiam Girdwood ARRAY_SIZE(wm8988_snd_controls)); 773ce6120ccSLiam Girdwood snd_soc_dapm_new_controls(dapm, wm8988_dapm_widgets, 774f0fba2adSLiam Girdwood ARRAY_SIZE(wm8988_dapm_widgets)); 775ce6120ccSLiam Girdwood snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); 7765409fb4eSMark Brown 7775409fb4eSMark Brown return 0; 7785409fb4eSMark Brown } 7795409fb4eSMark Brown 780f0fba2adSLiam Girdwood static int wm8988_remove(struct snd_soc_codec *codec) 7815409fb4eSMark Brown { 782f0fba2adSLiam Girdwood wm8988_set_bias_level(codec, SND_SOC_BIAS_OFF); 783f0fba2adSLiam Girdwood return 0; 7845409fb4eSMark Brown } 7855409fb4eSMark Brown 786f0fba2adSLiam Girdwood static struct snd_soc_codec_driver soc_codec_dev_wm8988 = { 787f0fba2adSLiam Girdwood .probe = wm8988_probe, 788f0fba2adSLiam Girdwood .remove = wm8988_remove, 789f0fba2adSLiam Girdwood .suspend = wm8988_suspend, 790f0fba2adSLiam Girdwood .resume = wm8988_resume, 791f0fba2adSLiam Girdwood .set_bias_level = wm8988_set_bias_level, 792e5eec34cSDimitris Papastamos .reg_cache_size = ARRAY_SIZE(wm8988_reg), 793f0fba2adSLiam Girdwood .reg_word_size = sizeof(u16), 794f0fba2adSLiam Girdwood .reg_cache_default = wm8988_reg, 795f0fba2adSLiam Girdwood }; 796f0fba2adSLiam Girdwood 797f0fba2adSLiam Girdwood #if defined(CONFIG_SPI_MASTER) 798f0fba2adSLiam Girdwood static int __devinit wm8988_spi_probe(struct spi_device *spi) 7995409fb4eSMark Brown { 8005409fb4eSMark Brown struct wm8988_priv *wm8988; 801f0fba2adSLiam Girdwood int ret; 8025409fb4eSMark Brown 8035409fb4eSMark Brown wm8988 = kzalloc(sizeof(struct wm8988_priv), GFP_KERNEL); 8045409fb4eSMark Brown if (wm8988 == NULL) 8055409fb4eSMark Brown return -ENOMEM; 8065409fb4eSMark Brown 807f0fba2adSLiam Girdwood wm8988->control_type = SND_SOC_SPI; 808f0fba2adSLiam Girdwood spi_set_drvdata(spi, wm8988); 8095409fb4eSMark Brown 810f0fba2adSLiam Girdwood ret = snd_soc_register_codec(&spi->dev, 811f0fba2adSLiam Girdwood &soc_codec_dev_wm8988, &wm8988_dai, 1); 812f0fba2adSLiam Girdwood if (ret < 0) 813f0fba2adSLiam Girdwood kfree(wm8988); 814f0fba2adSLiam Girdwood return ret; 8155409fb4eSMark Brown } 8165409fb4eSMark Brown 817f0fba2adSLiam Girdwood static int __devexit wm8988_spi_remove(struct spi_device *spi) 8185409fb4eSMark Brown { 819f0fba2adSLiam Girdwood snd_soc_unregister_codec(&spi->dev); 820f0fba2adSLiam Girdwood kfree(spi_get_drvdata(spi)); 821f0fba2adSLiam Girdwood return 0; 822f0fba2adSLiam Girdwood } 823f0fba2adSLiam Girdwood 824f0fba2adSLiam Girdwood static struct spi_driver wm8988_spi_driver = { 825f0fba2adSLiam Girdwood .driver = { 826f0fba2adSLiam Girdwood .name = "wm8988-codec", 827f0fba2adSLiam Girdwood .owner = THIS_MODULE, 828f0fba2adSLiam Girdwood }, 829f0fba2adSLiam Girdwood .probe = wm8988_spi_probe, 830f0fba2adSLiam Girdwood .remove = __devexit_p(wm8988_spi_remove), 831f0fba2adSLiam Girdwood }; 832f0fba2adSLiam Girdwood #endif /* CONFIG_SPI_MASTER */ 833f0fba2adSLiam Girdwood 834f0fba2adSLiam Girdwood #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 835f0fba2adSLiam Girdwood static __devinit int wm8988_i2c_probe(struct i2c_client *i2c, 836f0fba2adSLiam Girdwood const struct i2c_device_id *id) 837f0fba2adSLiam Girdwood { 838f0fba2adSLiam Girdwood struct wm8988_priv *wm8988; 839f0fba2adSLiam Girdwood int ret; 840f0fba2adSLiam Girdwood 841f0fba2adSLiam Girdwood wm8988 = kzalloc(sizeof(struct wm8988_priv), GFP_KERNEL); 842f0fba2adSLiam Girdwood if (wm8988 == NULL) 843f0fba2adSLiam Girdwood return -ENOMEM; 844f0fba2adSLiam Girdwood 845f0fba2adSLiam Girdwood i2c_set_clientdata(i2c, wm8988); 846f0fba2adSLiam Girdwood wm8988->control_type = SND_SOC_I2C; 847f0fba2adSLiam Girdwood 848f0fba2adSLiam Girdwood ret = snd_soc_register_codec(&i2c->dev, 849f0fba2adSLiam Girdwood &soc_codec_dev_wm8988, &wm8988_dai, 1); 850f0fba2adSLiam Girdwood if (ret < 0) 851f0fba2adSLiam Girdwood kfree(wm8988); 852f0fba2adSLiam Girdwood return ret; 853f0fba2adSLiam Girdwood } 854f0fba2adSLiam Girdwood 855f0fba2adSLiam Girdwood static __devexit int wm8988_i2c_remove(struct i2c_client *client) 856f0fba2adSLiam Girdwood { 857f0fba2adSLiam Girdwood snd_soc_unregister_codec(&client->dev); 858f0fba2adSLiam Girdwood kfree(i2c_get_clientdata(client)); 8595409fb4eSMark Brown return 0; 8605409fb4eSMark Brown } 8615409fb4eSMark Brown 8625409fb4eSMark Brown static const struct i2c_device_id wm8988_i2c_id[] = { 8635409fb4eSMark Brown { "wm8988", 0 }, 8645409fb4eSMark Brown { } 8655409fb4eSMark Brown }; 8665409fb4eSMark Brown MODULE_DEVICE_TABLE(i2c, wm8988_i2c_id); 8675409fb4eSMark Brown 8685409fb4eSMark Brown static struct i2c_driver wm8988_i2c_driver = { 8695409fb4eSMark Brown .driver = { 870f0fba2adSLiam Girdwood .name = "wm8988-codec", 8715409fb4eSMark Brown .owner = THIS_MODULE, 8725409fb4eSMark Brown }, 8735409fb4eSMark Brown .probe = wm8988_i2c_probe, 874f0fba2adSLiam Girdwood .remove = __devexit_p(wm8988_i2c_remove), 8755409fb4eSMark Brown .id_table = wm8988_i2c_id, 8765409fb4eSMark Brown }; 8775409fb4eSMark Brown #endif 8785409fb4eSMark Brown 8795409fb4eSMark Brown static int __init wm8988_modinit(void) 8805409fb4eSMark Brown { 881f0fba2adSLiam Girdwood int ret = 0; 8825409fb4eSMark Brown #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 8835409fb4eSMark Brown ret = i2c_add_driver(&wm8988_i2c_driver); 884f0fba2adSLiam Girdwood if (ret != 0) { 885f0fba2adSLiam Girdwood printk(KERN_ERR "Failed to register WM8988 I2C driver: %d\n", 886f0fba2adSLiam Girdwood ret); 887f0fba2adSLiam Girdwood } 8885409fb4eSMark Brown #endif 8895409fb4eSMark Brown #if defined(CONFIG_SPI_MASTER) 8905409fb4eSMark Brown ret = spi_register_driver(&wm8988_spi_driver); 891f0fba2adSLiam Girdwood if (ret != 0) { 892f0fba2adSLiam Girdwood printk(KERN_ERR "Failed to register WM8988 SPI driver: %d\n", 893f0fba2adSLiam Girdwood ret); 894f0fba2adSLiam Girdwood } 8955409fb4eSMark Brown #endif 8965409fb4eSMark Brown return ret; 8975409fb4eSMark Brown } 8985409fb4eSMark Brown module_init(wm8988_modinit); 8995409fb4eSMark Brown 9005409fb4eSMark Brown static void __exit wm8988_exit(void) 9015409fb4eSMark Brown { 9025409fb4eSMark Brown #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 9035409fb4eSMark Brown i2c_del_driver(&wm8988_i2c_driver); 9045409fb4eSMark Brown #endif 9055409fb4eSMark Brown #if defined(CONFIG_SPI_MASTER) 9065409fb4eSMark Brown spi_unregister_driver(&wm8988_spi_driver); 9075409fb4eSMark Brown #endif 9085409fb4eSMark Brown } 9095409fb4eSMark Brown module_exit(wm8988_exit); 9105409fb4eSMark Brown 9115409fb4eSMark Brown 9125409fb4eSMark Brown MODULE_DESCRIPTION("ASoC WM8988 driver"); 9135409fb4eSMark Brown MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); 9145409fb4eSMark Brown MODULE_LICENSE("GPL"); 915