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- /*
- * wm8750.c -- WM8750 ALSA SoC audio driver
- *
- * Copyright 2005 Openedhand Ltd.
- *
- * Author: Richard Purdie <richard@openedhand.com>
- *
- * Based on WM8753.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
- #include <linux/module.h>
- #include <linux/moduleparam.h>
- #include <linux/init.h>
- #include <linux/delay.h>
- #include <linux/pm.h>
- #include <linux/i2c.h>
- #include <linux/platform_device.h>
- #include <sound/driver.h>
- #include <sound/core.h>
- #include <sound/pcm.h>
- #include <sound/pcm_params.h>
- #include <sound/soc.h>
- #include <sound/soc-dapm.h>
- #include <sound/initval.h>
- #include "wm8750.h"
- #define AUDIO_NAME "WM8750"
- #define WM8750_VERSION "0.12"
- /*
- * Debug
- */
- #define WM8750_DEBUG 0
- #ifdef WM8750_DEBUG
- #define dbg(format, arg...) \
- printk(KERN_DEBUG AUDIO_NAME ": " format "\n" , ## arg)
- #else
- #define dbg(format, arg...) do {} while (0)
- #endif
- #define err(format, arg...) \
- printk(KERN_ERR AUDIO_NAME ": " format "\n" , ## arg)
- #define info(format, arg...) \
- printk(KERN_INFO AUDIO_NAME ": " format "\n" , ## arg)
- #define warn(format, arg...) \
- printk(KERN_WARNING AUDIO_NAME ": " format "\n" , ## arg)
- /* codec private data */
- struct wm8750_priv {
- unsigned int sysclk;
- };
- /*
- * wm8750 register cache
- * We can't read the WM8750 register space when we
- * are using 2 wire for device control, so we cache them instead.
- */
- static const u16 wm8750_reg[] = {
- 0x0097, 0x0097, 0x0079, 0x0079, /* 0 */
- 0x0000, 0x0008, 0x0000, 0x000a, /* 4 */
- 0x0000, 0x0000, 0x00ff, 0x00ff, /* 8 */
- 0x000f, 0x000f, 0x0000, 0x0000, /* 12 */
- 0x0000, 0x007b, 0x0000, 0x0032, /* 16 */
- 0x0000, 0x00c3, 0x00c3, 0x00c0, /* 20 */
- 0x0000, 0x0000, 0x0000, 0x0000, /* 24 */
- 0x0000, 0x0000, 0x0000, 0x0000, /* 28 */
- 0x0000, 0x0000, 0x0050, 0x0050, /* 32 */
- 0x0050, 0x0050, 0x0050, 0x0050, /* 36 */
- 0x0079, 0x0079, 0x0079, /* 40 */
- };
- /*
- * read wm8750 register cache
- */
- static inline unsigned int wm8750_read_reg_cache(struct snd_soc_codec *codec,
- unsigned int reg)
- {
- u16 *cache = codec->reg_cache;
- if (reg > WM8750_CACHE_REGNUM)
- return -1;
- return cache[reg];
- }
- /*
- * write wm8750 register cache
- */
- static inline void wm8750_write_reg_cache(struct snd_soc_codec *codec,
- unsigned int reg, unsigned int value)
- {
- u16 *cache = codec->reg_cache;
- if (reg > WM8750_CACHE_REGNUM)
- return;
- cache[reg] = value;
- }
- static int wm8750_write(struct snd_soc_codec *codec, unsigned int reg,
- unsigned int value)
- {
- u8 data[2];
- /* data is
- * D15..D9 WM8753 register offset
- * D8...D0 register data
- */
- data[0] = (reg << 1) | ((value >> 8) & 0x0001);
- data[1] = value & 0x00ff;
- wm8750_write_reg_cache (codec, reg, value);
- if (codec->hw_write(codec->control_data, data, 2) == 2)
- return 0;
- else
- return -EIO;
- }
- #define wm8750_reset(c) wm8750_write(c, WM8750_RESET, 0)
- /*
- * WM8750 Controls
- */
- static const char *wm8750_bass[] = {"Linear Control", "Adaptive Boost"};
- static const char *wm8750_bass_filter[] = { "130Hz @ 48kHz", "200Hz @ 48kHz" };
- static const char *wm8750_treble[] = {"8kHz", "4kHz"};
- static const char *wm8750_3d_lc[] = {"200Hz", "500Hz"};
- static const char *wm8750_3d_uc[] = {"2.2kHz", "1.5kHz"};
- static const char *wm8750_3d_func[] = {"Capture", "Playback"};
- static const char *wm8750_alc_func[] = {"Off", "Right", "Left", "Stereo"};
- static const char *wm8750_ng_type[] = {"Constant PGA Gain",
- "Mute ADC Output"};
- static const char *wm8750_line_mux[] = {"Line 1", "Line 2", "Line 3", "PGA",
- "Differential"};
- static const char *wm8750_pga_sel[] = {"Line 1", "Line 2", "Line 3",
- "Differential"};
- static const char *wm8750_out3[] = {"VREF", "ROUT1 + Vol", "MonoOut",
- "ROUT1"};
- static const char *wm8750_diff_sel[] = {"Line 1", "Line 2"};
- static const char *wm8750_adcpol[] = {"Normal", "L Invert", "R Invert",
- "L + R Invert"};
- static const char *wm8750_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
- static const char *wm8750_mono_mux[] = {"Stereo", "Mono (Left)",
- "Mono (Right)", "Digital Mono"};
- static const struct soc_enum wm8750_enum[] = {
- SOC_ENUM_SINGLE(WM8750_BASS, 7, 2, wm8750_bass),
- SOC_ENUM_SINGLE(WM8750_BASS, 6, 2, wm8750_bass_filter),
- SOC_ENUM_SINGLE(WM8750_TREBLE, 6, 2, wm8750_treble),
- SOC_ENUM_SINGLE(WM8750_3D, 5, 2, wm8750_3d_lc),
- SOC_ENUM_SINGLE(WM8750_3D, 6, 2, wm8750_3d_uc),
- SOC_ENUM_SINGLE(WM8750_3D, 7, 2, wm8750_3d_func),
- SOC_ENUM_SINGLE(WM8750_ALC1, 7, 4, wm8750_alc_func),
- SOC_ENUM_SINGLE(WM8750_NGATE, 1, 2, wm8750_ng_type),
- SOC_ENUM_SINGLE(WM8750_LOUTM1, 0, 5, wm8750_line_mux),
- SOC_ENUM_SINGLE(WM8750_ROUTM1, 0, 5, wm8750_line_mux),
- SOC_ENUM_SINGLE(WM8750_LADCIN, 6, 4, wm8750_pga_sel), /* 10 */
- SOC_ENUM_SINGLE(WM8750_RADCIN, 6, 4, wm8750_pga_sel),
- SOC_ENUM_SINGLE(WM8750_ADCTL2, 7, 4, wm8750_out3),
- SOC_ENUM_SINGLE(WM8750_ADCIN, 8, 2, wm8750_diff_sel),
- SOC_ENUM_SINGLE(WM8750_ADCDAC, 5, 4, wm8750_adcpol),
- SOC_ENUM_SINGLE(WM8750_ADCDAC, 1, 4, wm8750_deemph),
- SOC_ENUM_SINGLE(WM8750_ADCIN, 6, 4, wm8750_mono_mux), /* 16 */
- };
- static const struct snd_kcontrol_new wm8750_snd_controls[] = {
- SOC_DOUBLE_R("Capture Volume", WM8750_LINVOL, WM8750_RINVOL, 0, 63, 0),
- SOC_DOUBLE_R("Capture ZC Switch", WM8750_LINVOL, WM8750_RINVOL, 6, 1, 0),
- SOC_DOUBLE_R("Capture Switch", WM8750_LINVOL, WM8750_RINVOL, 7, 1, 1),
- SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8750_LOUT1V,
- WM8750_ROUT1V, 7, 1, 0),
- SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8750_LOUT2V,
- WM8750_ROUT2V, 7, 1, 0),
- SOC_ENUM("Playback De-emphasis", wm8750_enum[15]),
- SOC_ENUM("Capture Polarity", wm8750_enum[14]),
- SOC_SINGLE("Playback 6dB Attenuate", WM8750_ADCDAC, 7, 1, 0),
- SOC_SINGLE("Capture 6dB Attenuate", WM8750_ADCDAC, 8, 1, 0),
- SOC_DOUBLE_R("PCM Volume", WM8750_LDAC, WM8750_RDAC, 0, 255, 0),
- SOC_ENUM("Bass Boost", wm8750_enum[0]),
- SOC_ENUM("Bass Filter", wm8750_enum[1]),
- SOC_SINGLE("Bass Volume", WM8750_BASS, 0, 15, 1),
- SOC_SINGLE("Treble Volume", WM8750_TREBLE, 0, 15, 0),
- SOC_ENUM("Treble Cut-off", wm8750_enum[2]),
- SOC_SINGLE("3D Switch", WM8750_3D, 0, 1, 0),
- SOC_SINGLE("3D Volume", WM8750_3D, 1, 15, 0),
- SOC_ENUM("3D Lower Cut-off", wm8750_enum[3]),
- SOC_ENUM("3D Upper Cut-off", wm8750_enum[4]),
- SOC_ENUM("3D Mode", wm8750_enum[5]),
- SOC_SINGLE("ALC Capture Target Volume", WM8750_ALC1, 0, 7, 0),
- SOC_SINGLE("ALC Capture Max Volume", WM8750_ALC1, 4, 7, 0),
- SOC_ENUM("ALC Capture Function", wm8750_enum[6]),
- SOC_SINGLE("ALC Capture ZC Switch", WM8750_ALC2, 7, 1, 0),
- SOC_SINGLE("ALC Capture Hold Time", WM8750_ALC2, 0, 15, 0),
- SOC_SINGLE("ALC Capture Decay Time", WM8750_ALC3, 4, 15, 0),
- SOC_SINGLE("ALC Capture Attack Time", WM8750_ALC3, 0, 15, 0),
- SOC_SINGLE("ALC Capture NG Threshold", WM8750_NGATE, 3, 31, 0),
- SOC_ENUM("ALC Capture NG Type", wm8750_enum[4]),
- SOC_SINGLE("ALC Capture NG Switch", WM8750_NGATE, 0, 1, 0),
- SOC_SINGLE("Left ADC Capture Volume", WM8750_LADC, 0, 255, 0),
- SOC_SINGLE("Right ADC Capture Volume", WM8750_RADC, 0, 255, 0),
- SOC_SINGLE("ZC Timeout Switch", WM8750_ADCTL1, 0, 1, 0),
- SOC_SINGLE("Playback Invert Switch", WM8750_ADCTL1, 1, 1, 0),
- SOC_SINGLE("Right Speaker Playback Invert Switch", WM8750_ADCTL2, 4, 1, 0),
- /* Unimplemented */
- /* ADCDAC Bit 0 - ADCHPD */
- /* ADCDAC Bit 4 - HPOR */
- /* ADCTL1 Bit 2,3 - DATSEL */
- /* ADCTL1 Bit 4,5 - DMONOMIX */
- /* ADCTL1 Bit 6,7 - VSEL */
- /* ADCTL2 Bit 2 - LRCM */
- /* ADCTL2 Bit 3 - TRI */
- /* ADCTL3 Bit 5 - HPFLREN */
- /* ADCTL3 Bit 6 - VROI */
- /* ADCTL3 Bit 7,8 - ADCLRM */
- /* ADCIN Bit 4 - LDCM */
- /* ADCIN Bit 5 - RDCM */
- SOC_DOUBLE_R("Mic Boost", WM8750_LADCIN, WM8750_RADCIN, 4, 3, 0),
- SOC_DOUBLE_R("Bypass Left Playback Volume", WM8750_LOUTM1,
- WM8750_LOUTM2, 4, 7, 1),
- SOC_DOUBLE_R("Bypass Right Playback Volume", WM8750_ROUTM1,
- WM8750_ROUTM2, 4, 7, 1),
- SOC_DOUBLE_R("Bypass Mono Playback Volume", WM8750_MOUTM1,
- WM8750_MOUTM2, 4, 7, 1),
- SOC_SINGLE("Mono Playback ZC Switch", WM8750_MOUTV, 7, 1, 0),
- SOC_DOUBLE_R("Headphone Playback Volume", WM8750_LOUT1V, WM8750_ROUT1V,
- 0, 127, 0),
- SOC_DOUBLE_R("Speaker Playback Volume", WM8750_LOUT2V, WM8750_ROUT2V,
- 0, 127, 0),
- SOC_SINGLE("Mono Playback Volume", WM8750_MOUTV, 0, 127, 0),
- };
- /* add non dapm controls */
- static int wm8750_add_controls(struct snd_soc_codec *codec)
- {
- int err, i;
- for (i = 0; i < ARRAY_SIZE(wm8750_snd_controls); i++) {
- err = snd_ctl_add(codec->card,
- snd_soc_cnew(&wm8750_snd_controls[i],codec, NULL));
- if (err < 0)
- return err;
- }
- return 0;
- }
- /*
- * DAPM Controls
- */
- /* Left Mixer */
- static const struct snd_kcontrol_new wm8750_left_mixer_controls[] = {
- SOC_DAPM_SINGLE("Playback Switch", WM8750_LOUTM1, 8, 1, 0),
- SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_LOUTM1, 7, 1, 0),
- SOC_DAPM_SINGLE("Right Playback Switch", WM8750_LOUTM2, 8, 1, 0),
- SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_LOUTM2, 7, 1, 0),
- };
- /* Right Mixer */
- static const struct snd_kcontrol_new wm8750_right_mixer_controls[] = {
- SOC_DAPM_SINGLE("Left Playback Switch", WM8750_ROUTM1, 8, 1, 0),
- SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_ROUTM1, 7, 1, 0),
- SOC_DAPM_SINGLE("Playback Switch", WM8750_ROUTM2, 8, 1, 0),
- SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_ROUTM2, 7, 1, 0),
- };
- /* Mono Mixer */
- static const struct snd_kcontrol_new wm8750_mono_mixer_controls[] = {
- SOC_DAPM_SINGLE("Left Playback Switch", WM8750_MOUTM1, 8, 1, 0),
- SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_MOUTM1, 7, 1, 0),
- SOC_DAPM_SINGLE("Right Playback Switch", WM8750_MOUTM2, 8, 1, 0),
- SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_MOUTM2, 7, 1, 0),
- };
- /* Left Line Mux */
- static const struct snd_kcontrol_new wm8750_left_line_controls =
- SOC_DAPM_ENUM("Route", wm8750_enum[8]);
- /* Right Line Mux */
- static const struct snd_kcontrol_new wm8750_right_line_controls =
- SOC_DAPM_ENUM("Route", wm8750_enum[9]);
- /* Left PGA Mux */
- static const struct snd_kcontrol_new wm8750_left_pga_controls =
- SOC_DAPM_ENUM("Route", wm8750_enum[10]);
- /* Right PGA Mux */
- static const struct snd_kcontrol_new wm8750_right_pga_controls =
- SOC_DAPM_ENUM("Route", wm8750_enum[11]);
- /* Out 3 Mux */
- static const struct snd_kcontrol_new wm8750_out3_controls =
- SOC_DAPM_ENUM("Route", wm8750_enum[12]);
- /* Differential Mux */
- static const struct snd_kcontrol_new wm8750_diffmux_controls =
- SOC_DAPM_ENUM("Route", wm8750_enum[13]);
- /* Mono ADC Mux */
- static const struct snd_kcontrol_new wm8750_monomux_controls =
- SOC_DAPM_ENUM("Route", wm8750_enum[16]);
- static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
- SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0,
- &wm8750_left_mixer_controls[0],
- ARRAY_SIZE(wm8750_left_mixer_controls)),
- SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0,
- &wm8750_right_mixer_controls[0],
- ARRAY_SIZE(wm8750_right_mixer_controls)),
- SND_SOC_DAPM_MIXER("Mono Mixer", WM8750_PWR2, 2, 0,
- &wm8750_mono_mixer_controls[0],
- ARRAY_SIZE(wm8750_mono_mixer_controls)),
- SND_SOC_DAPM_PGA("Right Out 2", WM8750_PWR2, 3, 0, NULL, 0),
- SND_SOC_DAPM_PGA("Left Out 2", WM8750_PWR2, 4, 0, NULL, 0),
- SND_SOC_DAPM_PGA("Right Out 1", WM8750_PWR2, 5, 0, NULL, 0),
- SND_SOC_DAPM_PGA("Left Out 1", WM8750_PWR2, 6, 0, NULL, 0),
- SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8750_PWR2, 7, 0),
- SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8750_PWR2, 8, 0),
- SND_SOC_DAPM_MICBIAS("Mic Bias", WM8750_PWR1, 1, 0),
- SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8750_PWR1, 2, 0),
- SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8750_PWR1, 3, 0),
- SND_SOC_DAPM_MUX("Left PGA Mux", WM8750_PWR1, 5, 0,
- &wm8750_left_pga_controls),
- SND_SOC_DAPM_MUX("Right PGA Mux", WM8750_PWR1, 4, 0,
- &wm8750_right_pga_controls),
- SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0,
- &wm8750_left_line_controls),
- SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0,
- &wm8750_right_line_controls),
- SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8750_out3_controls),
- SND_SOC_DAPM_PGA("Out 3", WM8750_PWR2, 1, 0, NULL, 0),
- SND_SOC_DAPM_PGA("Mono Out 1", WM8750_PWR2, 2, 0, NULL, 0),
- SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0,
- &wm8750_diffmux_controls),
- SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0,
- &wm8750_monomux_controls),
- SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0,
- &wm8750_monomux_controls),
- SND_SOC_DAPM_OUTPUT("LOUT1"),
- SND_SOC_DAPM_OUTPUT("ROUT1"),
- SND_SOC_DAPM_OUTPUT("LOUT2"),
- SND_SOC_DAPM_OUTPUT("ROUT2"),
- SND_SOC_DAPM_OUTPUT("MONO"),
- SND_SOC_DAPM_OUTPUT("OUT3"),
- SND_SOC_DAPM_INPUT("LINPUT1"),
- SND_SOC_DAPM_INPUT("LINPUT2"),
- SND_SOC_DAPM_INPUT("LINPUT3"),
- SND_SOC_DAPM_INPUT("RINPUT1"),
- SND_SOC_DAPM_INPUT("RINPUT2"),
- SND_SOC_DAPM_INPUT("RINPUT3"),
- };
- static const char *audio_map[][3] = {
- /* left mixer */
- {"Left Mixer", "Playback Switch", "Left DAC"},
- {"Left Mixer", "Left Bypass Switch", "Left Line Mux"},
- {"Left Mixer", "Right Playback Switch", "Right DAC"},
- {"Left Mixer", "Right Bypass Switch", "Right Line Mux"},
- /* right mixer */
- {"Right Mixer", "Left Playback Switch", "Left DAC"},
- {"Right Mixer", "Left Bypass Switch", "Left Line Mux"},
- {"Right Mixer", "Playback Switch", "Right DAC"},
- {"Right Mixer", "Right Bypass Switch", "Right Line Mux"},
- /* left out 1 */
- {"Left Out 1", NULL, "Left Mixer"},
- {"LOUT1", NULL, "Left Out 1"},
- /* left out 2 */
- {"Left Out 2", NULL, "Left Mixer"},
- {"LOUT2", NULL, "Left Out 2"},
- /* right out 1 */
- {"Right Out 1", NULL, "Right Mixer"},
- {"ROUT1", NULL, "Right Out 1"},
- /* right out 2 */
- {"Right Out 2", NULL, "Right Mixer"},
- {"ROUT2", NULL, "Right Out 2"},
- /* mono mixer */
- {"Mono Mixer", "Left Playback Switch", "Left DAC"},
- {"Mono Mixer", "Left Bypass Switch", "Left Line Mux"},
- {"Mono Mixer", "Right Playback Switch", "Right DAC"},
- {"Mono Mixer", "Right Bypass Switch", "Right Line Mux"},
- /* mono out */
- {"Mono Out 1", NULL, "Mono Mixer"},
- {"MONO1", NULL, "Mono Out 1"},
- /* out 3 */
- {"Out3 Mux", "VREF", "VREF"},
- {"Out3 Mux", "ROUT1 + Vol", "ROUT1"},
- {"Out3 Mux", "ROUT1", "Right Mixer"},
- {"Out3 Mux", "MonoOut", "MONO1"},
- {"Out 3", NULL, "Out3 Mux"},
- {"OUT3", NULL, "Out 3"},
- /* Left Line Mux */
- {"Left Line Mux", "Line 1", "LINPUT1"},
- {"Left Line Mux", "Line 2", "LINPUT2"},
- {"Left Line Mux", "Line 3", "LINPUT3"},
- {"Left Line Mux", "PGA", "Left PGA Mux"},
- {"Left Line Mux", "Differential", "Differential Mux"},
- /* Right Line Mux */
- {"Right Line Mux", "Line 1", "RINPUT1"},
- {"Right Line Mux", "Line 2", "RINPUT2"},
- {"Right Line Mux", "Line 3", "RINPUT3"},
- {"Right Line Mux", "PGA", "Right PGA Mux"},
- {"Right Line Mux", "Differential", "Differential Mux"},
- /* Left PGA Mux */
- {"Left PGA Mux", "Line 1", "LINPUT1"},
- {"Left PGA Mux", "Line 2", "LINPUT2"},
- {"Left PGA Mux", "Line 3", "LINPUT3"},
- {"Left PGA Mux", "Differential", "Differential Mux"},
- /* Right PGA Mux */
- {"Right PGA Mux", "Line 1", "RINPUT1"},
- {"Right PGA Mux", "Line 2", "RINPUT2"},
- {"Right PGA Mux", "Line 3", "RINPUT3"},
- {"Right PGA Mux", "Differential", "Differential Mux"},
- /* Differential Mux */
- {"Differential Mux", "Line 1", "LINPUT1"},
- {"Differential Mux", "Line 1", "RINPUT1"},
- {"Differential Mux", "Line 2", "LINPUT2"},
- {"Differential Mux", "Line 2", "RINPUT2"},
- /* Left ADC Mux */
- {"Left ADC Mux", "Stereo", "Left PGA Mux"},
- {"Left ADC Mux", "Mono (Left)", "Left PGA Mux"},
- {"Left ADC Mux", "Digital Mono", "Left PGA Mux"},
- /* Right ADC Mux */
- {"Right ADC Mux", "Stereo", "Right PGA Mux"},
- {"Right ADC Mux", "Mono (Right)", "Right PGA Mux"},
- {"Right ADC Mux", "Digital Mono", "Right PGA Mux"},
- /* ADC */
- {"Left ADC", NULL, "Left ADC Mux"},
- {"Right ADC", NULL, "Right ADC Mux"},
- /* terminator */
- {NULL, NULL, NULL},
- };
- static int wm8750_add_widgets(struct snd_soc_codec *codec)
- {
- int i;
- for(i = 0; i < ARRAY_SIZE(wm8750_dapm_widgets); i++) {
- snd_soc_dapm_new_control(codec, &wm8750_dapm_widgets[i]);
- }
- /* set up audio path audio_mapnects */
- for(i = 0; audio_map[i][0] != NULL; i++) {
- snd_soc_dapm_connect_input(codec, audio_map[i][0],
- audio_map[i][1], audio_map[i][2]);
- }
- snd_soc_dapm_new_widgets(codec);
- 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_codec_dai *codec_dai,
- int clk_id, unsigned int freq, int dir)
- {
- struct snd_soc_codec *codec = codec_dai->codec;
- struct wm8750_priv *wm8750 = codec->private_data;
- 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_codec_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;
- }
- wm8750_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_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_codec *codec = socdev->codec;
- struct wm8750_priv *wm8750 = codec->private_data;
- u16 iface = wm8750_read_reg_cache(codec, WM8750_IFACE) & 0x1f3;
- u16 srate = wm8750_read_reg_cache(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 */
- wm8750_write(codec, WM8750_IFACE, iface);
- if (coeff >= 0)
- wm8750_write(codec, WM8750_SRATE, srate |
- (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb);
- return 0;
- }
- static int wm8750_mute(struct snd_soc_codec_dai *dai, int mute)
- {
- struct snd_soc_codec *codec = dai->codec;
- u16 mute_reg = wm8750_read_reg_cache(codec, WM8750_ADCDAC) & 0xfff7;
- if (mute)
- wm8750_write(codec, WM8750_ADCDAC, mute_reg | 0x8);
- else
- wm8750_write(codec, WM8750_ADCDAC, mute_reg);
- return 0;
- }
- static int wm8750_dapm_event(struct snd_soc_codec *codec, int event)
- {
- u16 pwr_reg = wm8750_read_reg_cache(codec, WM8750_PWR1) & 0xfe3e;
- switch (event) {
- case SNDRV_CTL_POWER_D0: /* full On */
- /* set vmid to 50k and unmute dac */
- wm8750_write(codec, WM8750_PWR1, pwr_reg | 0x00c0);
- break;
- case SNDRV_CTL_POWER_D1: /* partial On */
- case SNDRV_CTL_POWER_D2: /* partial On */
- /* set vmid to 5k for quick power up */
- wm8750_write(codec, WM8750_PWR1, pwr_reg | 0x01c1);
- break;
- case SNDRV_CTL_POWER_D3hot: /* Off, with power */
- /* mute dac and set vmid to 500k, enable VREF */
- wm8750_write(codec, WM8750_PWR1, pwr_reg | 0x0141);
- break;
- case SNDRV_CTL_POWER_D3cold: /* Off, without power */
- wm8750_write(codec, WM8750_PWR1, 0x0001);
- break;
- }
- codec->dapm_state = event;
- 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)
- struct snd_soc_codec_dai wm8750_dai = {
- .name = "WM8750",
- .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 = {
- .hw_params = wm8750_pcm_hw_params,
- },
- .dai_ops = {
- .digital_mute = wm8750_mute,
- .set_fmt = wm8750_set_dai_fmt,
- .set_sysclk = wm8750_set_dai_sysclk,
- },
- };
- EXPORT_SYMBOL_GPL(wm8750_dai);
- static void wm8750_work(struct work_struct *work)
- {
- struct snd_soc_codec *codec =
- container_of(work, struct snd_soc_codec, delayed_work.work);
- wm8750_dapm_event(codec, codec->dapm_state);
- }
- static int wm8750_suspend(struct platform_device *pdev, pm_message_t state)
- {
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->codec;
- wm8750_dapm_event(codec, SNDRV_CTL_POWER_D3cold);
- return 0;
- }
- static int wm8750_resume(struct platform_device *pdev)
- {
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->codec;
- int i;
- u8 data[2];
- u16 *cache = codec->reg_cache;
- /* Sync reg_cache with the hardware */
- for (i = 0; i < ARRAY_SIZE(wm8750_reg); i++) {
- if (i == WM8750_RESET)
- continue;
- data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
- data[1] = cache[i] & 0x00ff;
- codec->hw_write(codec->control_data, data, 2);
- }
- wm8750_dapm_event(codec, SNDRV_CTL_POWER_D3hot);
- /* charge wm8750 caps */
- if (codec->suspend_dapm_state == SNDRV_CTL_POWER_D0) {
- wm8750_dapm_event(codec, SNDRV_CTL_POWER_D2);
- codec->dapm_state = SNDRV_CTL_POWER_D0;
- schedule_delayed_work(&codec->delayed_work, msecs_to_jiffies(1000));
- }
- return 0;
- }
- /*
- * initialise the WM8750 driver
- * register the mixer and dsp interfaces with the kernel
- */
- static int wm8750_init(struct snd_soc_device *socdev)
- {
- struct snd_soc_codec *codec = socdev->codec;
- int reg, ret = 0;
- codec->name = "WM8750";
- codec->owner = THIS_MODULE;
- codec->read = wm8750_read_reg_cache;
- codec->write = wm8750_write;
- codec->dapm_event = wm8750_dapm_event;
- codec->dai = &wm8750_dai;
- codec->num_dai = 1;
- codec->reg_cache_size = sizeof(wm8750_reg);
- codec->reg_cache = kmemdup(wm8750_reg, sizeof(wm8750_reg), GFP_KERNEL);
- if (codec->reg_cache == NULL)
- return -ENOMEM;
- wm8750_reset(codec);
- /* register pcms */
- ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
- if (ret < 0) {
- printk(KERN_ERR "wm8750: failed to create pcms\n");
- goto pcm_err;
- }
- /* charge output caps */
- wm8750_dapm_event(codec, SNDRV_CTL_POWER_D2);
- codec->dapm_state = SNDRV_CTL_POWER_D3hot;
- schedule_delayed_work(&codec->delayed_work, msecs_to_jiffies(1000));
- /* set the update bits */
- reg = wm8750_read_reg_cache(codec, WM8750_LDAC);
- wm8750_write(codec, WM8750_LDAC, reg | 0x0100);
- reg = wm8750_read_reg_cache(codec, WM8750_RDAC);
- wm8750_write(codec, WM8750_RDAC, reg | 0x0100);
- reg = wm8750_read_reg_cache(codec, WM8750_LOUT1V);
- wm8750_write(codec, WM8750_LOUT1V, reg | 0x0100);
- reg = wm8750_read_reg_cache(codec, WM8750_ROUT1V);
- wm8750_write(codec, WM8750_ROUT1V, reg | 0x0100);
- reg = wm8750_read_reg_cache(codec, WM8750_LOUT2V);
- wm8750_write(codec, WM8750_LOUT2V, reg | 0x0100);
- reg = wm8750_read_reg_cache(codec, WM8750_ROUT2V);
- wm8750_write(codec, WM8750_ROUT2V, reg | 0x0100);
- reg = wm8750_read_reg_cache(codec, WM8750_LINVOL);
- wm8750_write(codec, WM8750_LINVOL, reg | 0x0100);
- reg = wm8750_read_reg_cache(codec, WM8750_RINVOL);
- wm8750_write(codec, WM8750_RINVOL, reg | 0x0100);
- wm8750_add_controls(codec);
- wm8750_add_widgets(codec);
- ret = snd_soc_register_card(socdev);
- if (ret < 0) {
- printk(KERN_ERR "wm8750: failed to register card\n");
- goto card_err;
- }
- return ret;
- card_err:
- snd_soc_free_pcms(socdev);
- snd_soc_dapm_free(socdev);
- pcm_err:
- kfree(codec->reg_cache);
- return ret;
- }
- /* If the i2c layer weren't so broken, we could pass this kind of data
- around */
- static struct snd_soc_device *wm8750_socdev;
- #if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE)
- /*
- * WM8731 2 wire address is determined by GPIO5
- * state during powerup.
- * low = 0x1a
- * high = 0x1b
- */
- static unsigned short normal_i2c[] = { 0, I2C_CLIENT_END };
- /* Magic definition of all other variables and things */
- I2C_CLIENT_INSMOD;
- static struct i2c_driver wm8750_i2c_driver;
- static struct i2c_client client_template;
- static int wm8750_codec_probe(struct i2c_adapter *adap, int addr, int kind)
- {
- struct snd_soc_device *socdev = wm8750_socdev;
- struct wm8750_setup_data *setup = socdev->codec_data;
- struct snd_soc_codec *codec = socdev->codec;
- struct i2c_client *i2c;
- int ret;
- if (addr != setup->i2c_address)
- return -ENODEV;
- client_template.adapter = adap;
- client_template.addr = addr;
- i2c = kmemdup(&client_template, sizeof(client_template), GFP_KERNEL);
- if (i2c == NULL) {
- kfree(codec);
- return -ENOMEM;
- }
- i2c_set_clientdata(i2c, codec);
- codec->control_data = i2c;
- ret = i2c_attach_client(i2c);
- if (ret < 0) {
- err("failed to attach codec at addr %x\n", addr);
- goto err;
- }
- ret = wm8750_init(socdev);
- if (ret < 0) {
- err("failed to initialise WM8750\n");
- goto err;
- }
- return ret;
- err:
- kfree(codec);
- kfree(i2c);
- return ret;
- }
- static int wm8750_i2c_detach(struct i2c_client *client)
- {
- struct snd_soc_codec *codec = i2c_get_clientdata(client);
- i2c_detach_client(client);
- kfree(codec->reg_cache);
- kfree(client);
- return 0;
- }
- static int wm8750_i2c_attach(struct i2c_adapter *adap)
- {
- return i2c_probe(adap, &addr_data, wm8750_codec_probe);
- }
- /* corgi i2c codec control layer */
- static struct i2c_driver wm8750_i2c_driver = {
- .driver = {
- .name = "WM8750 I2C Codec",
- .owner = THIS_MODULE,
- },
- .id = I2C_DRIVERID_WM8750,
- .attach_adapter = wm8750_i2c_attach,
- .detach_client = wm8750_i2c_detach,
- .command = NULL,
- };
- static struct i2c_client client_template = {
- .name = "WM8750",
- .driver = &wm8750_i2c_driver,
- };
- #endif
- static int wm8750_probe(struct platform_device *pdev)
- {
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct wm8750_setup_data *setup = socdev->codec_data;
- struct snd_soc_codec *codec;
- struct wm8750_priv *wm8750;
- int ret = 0;
- info("WM8750 Audio Codec %s", WM8750_VERSION);
- codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
- if (codec == NULL)
- return -ENOMEM;
- wm8750 = kzalloc(sizeof(struct wm8750_priv), GFP_KERNEL);
- if (wm8750 == NULL) {
- kfree(codec);
- return -ENOMEM;
- }
- codec->private_data = wm8750;
- socdev->codec = codec;
- mutex_init(&codec->mutex);
- INIT_LIST_HEAD(&codec->dapm_widgets);
- INIT_LIST_HEAD(&codec->dapm_paths);
- wm8750_socdev = socdev;
- INIT_DELAYED_WORK(&codec->delayed_work, wm8750_work);
-
- #if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE)
- if (setup->i2c_address) {
- normal_i2c[0] = setup->i2c_address;
- codec->hw_write = (hw_write_t)i2c_master_send;
- ret = i2c_add_driver(&wm8750_i2c_driver);
- if (ret != 0)
- printk(KERN_ERR "can't add i2c driver");
- }
- #else
- /* Add other interfaces here */
- #endif
- return ret;
- }
- /*
- * This function forces any delayed work to be queued and run.
- */
- static int run_delayed_work(struct delayed_work *dwork)
- {
- int ret;
- /* cancel any work waiting to be queued. */
- ret = cancel_delayed_work(dwork);
- /* if there was any work waiting then we run it now and
- * wait for it's completion */
- if (ret) {
- schedule_delayed_work(dwork, 0);
- flush_scheduled_work();
- }
- return ret;
- }
- /* power down chip */
- static int wm8750_remove(struct platform_device *pdev)
- {
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->codec;
- if (codec->control_data)
- wm8750_dapm_event(codec, SNDRV_CTL_POWER_D3cold);
- run_delayed_work(&codec->delayed_work);
- snd_soc_free_pcms(socdev);
- snd_soc_dapm_free(socdev);
- #if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE)
- i2c_del_driver(&wm8750_i2c_driver);
- #endif
- kfree(codec->private_data);
- kfree(codec);
- return 0;
- }
- struct snd_soc_codec_device soc_codec_dev_wm8750 = {
- .probe = wm8750_probe,
- .remove = wm8750_remove,
- .suspend = wm8750_suspend,
- .resume = wm8750_resume,
- };
- EXPORT_SYMBOL_GPL(soc_codec_dev_wm8750);
- MODULE_DESCRIPTION("ASoC WM8750 driver");
- MODULE_AUTHOR("Liam Girdwood");
- MODULE_LICENSE("GPL");
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