--- /dev/null
+/*
+ * wm8350.c -- WM8350 ALSA SoC audio driver
+ *
+ * Copyright (C) 2007, 2008 Wolfson Microelectronics PLC.
+ *
+ * Author: Liam Girdwood <lg@opensource.wolfsonmicro.com>
+ *
+ * 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/platform_device.h>
+#include <linux/mfd/wm8350/audio.h>
+#include <linux/mfd/wm8350/core.h>
+#include <linux/regulator/consumer.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 <sound/tlv.h>
+
+#include "wm8350.h"
+
+#define WM8350_OUTn_0dB 0x39
+
+#define WM8350_RAMP_NONE 0
+#define WM8350_RAMP_UP 1
+#define WM8350_RAMP_DOWN 2
+
+/* We only include the analogue supplies here; the digital supplies
+ * need to be available well before this driver can be probed.
+ */
+static const char *supply_names[] = {
+ "AVDD",
+ "HPVDD",
+};
+
+struct wm8350_output {
+ u16 active;
+ u16 left_vol;
+ u16 right_vol;
+ u16 ramp;
+ u16 mute;
+};
+
+struct wm8350_data {
+ struct snd_soc_codec codec;
+ struct wm8350_output out1;
+ struct wm8350_output out2;
+ struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)];
+};
+
+static unsigned int wm8350_codec_cache_read(struct snd_soc_codec *codec,
+ unsigned int reg)
+{
+ struct wm8350 *wm8350 = codec->control_data;
+ return wm8350->reg_cache[reg];
+}
+
+static unsigned int wm8350_codec_read(struct snd_soc_codec *codec,
+ unsigned int reg)
+{
+ struct wm8350 *wm8350 = codec->control_data;
+ return wm8350_reg_read(wm8350, reg);
+}
+
+static int wm8350_codec_write(struct snd_soc_codec *codec, unsigned int reg,
+ unsigned int value)
+{
+ struct wm8350 *wm8350 = codec->control_data;
+ return wm8350_reg_write(wm8350, reg, value);
+}
+
+/*
+ * Ramp OUT1 PGA volume to minimise pops at stream startup and shutdown.
+ */
+static inline int wm8350_out1_ramp_step(struct snd_soc_codec *codec)
+{
+ struct wm8350_data *wm8350_data = codec->private_data;
+ struct wm8350_output *out1 = &wm8350_data->out1;
+ struct wm8350 *wm8350 = codec->control_data;
+ int left_complete = 0, right_complete = 0;
+ u16 reg, val;
+
+ /* left channel */
+ reg = wm8350_reg_read(wm8350, WM8350_LOUT1_VOLUME);
+ val = (reg & WM8350_OUT1L_VOL_MASK) >> WM8350_OUT1L_VOL_SHIFT;
+
+ if (out1->ramp == WM8350_RAMP_UP) {
+ /* ramp step up */
+ if (val < out1->left_vol) {
+ val++;
+ reg &= ~WM8350_OUT1L_VOL_MASK;
+ wm8350_reg_write(wm8350, WM8350_LOUT1_VOLUME,
+ reg | (val << WM8350_OUT1L_VOL_SHIFT));
+ } else
+ left_complete = 1;
+ } else if (out1->ramp == WM8350_RAMP_DOWN) {
+ /* ramp step down */
+ if (val > 0) {
+ val--;
+ reg &= ~WM8350_OUT1L_VOL_MASK;
+ wm8350_reg_write(wm8350, WM8350_LOUT1_VOLUME,
+ reg | (val << WM8350_OUT1L_VOL_SHIFT));
+ } else
+ left_complete = 1;
+ } else
+ return 1;
+
+ /* right channel */
+ reg = wm8350_reg_read(wm8350, WM8350_ROUT1_VOLUME);
+ val = (reg & WM8350_OUT1R_VOL_MASK) >> WM8350_OUT1R_VOL_SHIFT;
+ if (out1->ramp == WM8350_RAMP_UP) {
+ /* ramp step up */
+ if (val < out1->right_vol) {
+ val++;
+ reg &= ~WM8350_OUT1R_VOL_MASK;
+ wm8350_reg_write(wm8350, WM8350_ROUT1_VOLUME,
+ reg | (val << WM8350_OUT1R_VOL_SHIFT));
+ } else
+ right_complete = 1;
+ } else if (out1->ramp == WM8350_RAMP_DOWN) {
+ /* ramp step down */
+ if (val > 0) {
+ val--;
+ reg &= ~WM8350_OUT1R_VOL_MASK;
+ wm8350_reg_write(wm8350, WM8350_ROUT1_VOLUME,
+ reg | (val << WM8350_OUT1R_VOL_SHIFT));
+ } else
+ right_complete = 1;
+ }
+
+ /* only hit the update bit if either volume has changed this step */
+ if (!left_complete || !right_complete)
+ wm8350_set_bits(wm8350, WM8350_LOUT1_VOLUME, WM8350_OUT1_VU);
+
+ return left_complete & right_complete;
+}
+
+/*
+ * Ramp OUT2 PGA volume to minimise pops at stream startup and shutdown.
+ */
+static inline int wm8350_out2_ramp_step(struct snd_soc_codec *codec)
+{
+ struct wm8350_data *wm8350_data = codec->private_data;
+ struct wm8350_output *out2 = &wm8350_data->out2;
+ struct wm8350 *wm8350 = codec->control_data;
+ int left_complete = 0, right_complete = 0;
+ u16 reg, val;
+
+ /* left channel */
+ reg = wm8350_reg_read(wm8350, WM8350_LOUT2_VOLUME);
+ val = (reg & WM8350_OUT2L_VOL_MASK) >> WM8350_OUT1L_VOL_SHIFT;
+ if (out2->ramp == WM8350_RAMP_UP) {
+ /* ramp step up */
+ if (val < out2->left_vol) {
+ val++;
+ reg &= ~WM8350_OUT2L_VOL_MASK;
+ wm8350_reg_write(wm8350, WM8350_LOUT2_VOLUME,
+ reg | (val << WM8350_OUT1L_VOL_SHIFT));
+ } else
+ left_complete = 1;
+ } else if (out2->ramp == WM8350_RAMP_DOWN) {
+ /* ramp step down */
+ if (val > 0) {
+ val--;
+ reg &= ~WM8350_OUT2L_VOL_MASK;
+ wm8350_reg_write(wm8350, WM8350_LOUT2_VOLUME,
+ reg | (val << WM8350_OUT1L_VOL_SHIFT));
+ } else
+ left_complete = 1;
+ } else
+ return 1;
+
+ /* right channel */
+ reg = wm8350_reg_read(wm8350, WM8350_ROUT2_VOLUME);
+ val = (reg & WM8350_OUT2R_VOL_MASK) >> WM8350_OUT1R_VOL_SHIFT;
+ if (out2->ramp == WM8350_RAMP_UP) {
+ /* ramp step up */
+ if (val < out2->right_vol) {
+ val++;
+ reg &= ~WM8350_OUT2R_VOL_MASK;
+ wm8350_reg_write(wm8350, WM8350_ROUT2_VOLUME,
+ reg | (val << WM8350_OUT1R_VOL_SHIFT));
+ } else
+ right_complete = 1;
+ } else if (out2->ramp == WM8350_RAMP_DOWN) {
+ /* ramp step down */
+ if (val > 0) {
+ val--;
+ reg &= ~WM8350_OUT2R_VOL_MASK;
+ wm8350_reg_write(wm8350, WM8350_ROUT2_VOLUME,
+ reg | (val << WM8350_OUT1R_VOL_SHIFT));
+ } else
+ right_complete = 1;
+ }
+
+ /* only hit the update bit if either volume has changed this step */
+ if (!left_complete || !right_complete)
+ wm8350_set_bits(wm8350, WM8350_LOUT2_VOLUME, WM8350_OUT2_VU);
+
+ return left_complete & right_complete;
+}
+
+/*
+ * This work ramps both output PGAs at stream start/stop time to
+ * minimise pop associated with DAPM power switching.
+ * It's best to enable Zero Cross when ramping occurs to minimise any
+ * zipper noises.
+ */
+static void wm8350_pga_work(struct work_struct *work)
+{
+ struct snd_soc_codec *codec =
+ container_of(work, struct snd_soc_codec, delayed_work.work);
+ struct wm8350_data *wm8350_data = codec->private_data;
+ struct wm8350_output *out1 = &wm8350_data->out1,
+ *out2 = &wm8350_data->out2;
+ int i, out1_complete, out2_complete;
+
+ /* do we need to ramp at all ? */
+ if (out1->ramp == WM8350_RAMP_NONE && out2->ramp == WM8350_RAMP_NONE)
+ return;
+
+ /* PGA volumes have 6 bits of resolution to ramp */
+ for (i = 0; i <= 63; i++) {
+ out1_complete = 1, out2_complete = 1;
+ if (out1->ramp != WM8350_RAMP_NONE)
+ out1_complete = wm8350_out1_ramp_step(codec);
+ if (out2->ramp != WM8350_RAMP_NONE)
+ out2_complete = wm8350_out2_ramp_step(codec);
+
+ /* ramp finished ? */
+ if (out1_complete && out2_complete)
+ break;
+
+ /* we need to delay longer on the up ramp */
+ if (out1->ramp == WM8350_RAMP_UP ||
+ out2->ramp == WM8350_RAMP_UP) {
+ /* delay is longer over 0dB as increases are larger */
+ if (i >= WM8350_OUTn_0dB)
+ schedule_timeout_interruptible(msecs_to_jiffies
+ (2));
+ else
+ schedule_timeout_interruptible(msecs_to_jiffies
+ (1));
+ } else
+ udelay(50); /* doesn't matter if we delay longer */
+ }
+
+ out1->ramp = WM8350_RAMP_NONE;
+ out2->ramp = WM8350_RAMP_NONE;
+}
+
+/*
+ * WM8350 Controls
+ */
+
+static int pga_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_codec *codec = w->codec;
+ struct wm8350_data *wm8350_data = codec->private_data;
+ struct wm8350_output *out;
+
+ switch (w->shift) {
+ case 0:
+ case 1:
+ out = &wm8350_data->out1;
+ break;
+ case 2:
+ case 3:
+ out = &wm8350_data->out2;
+ break;
+
+ default:
+ BUG();
+ return -1;
+ }
+
+ switch (event) {
+ case SND_SOC_DAPM_POST_PMU:
+ out->ramp = WM8350_RAMP_UP;
+ out->active = 1;
+
+ if (!delayed_work_pending(&codec->delayed_work))
+ schedule_delayed_work(&codec->delayed_work,
+ msecs_to_jiffies(1));
+ break;
+
+ case SND_SOC_DAPM_PRE_PMD:
+ out->ramp = WM8350_RAMP_DOWN;
+ out->active = 0;
+
+ if (!delayed_work_pending(&codec->delayed_work))
+ schedule_delayed_work(&codec->delayed_work,
+ msecs_to_jiffies(1));
+ break;
+ }
+
+ return 0;
+}
+
+static int wm8350_put_volsw_2r_vu(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct wm8350_data *wm8350_priv = codec->private_data;
+ struct wm8350_output *out = NULL;
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ int ret;
+ unsigned int reg = mc->reg;
+ u16 val;
+
+ /* For OUT1 and OUT2 we shadow the values and only actually write
+ * them out when active in order to ensure the amplifier comes on
+ * as quietly as possible. */
+ switch (reg) {
+ case WM8350_LOUT1_VOLUME:
+ out = &wm8350_priv->out1;
+ break;
+ case WM8350_LOUT2_VOLUME:
+ out = &wm8350_priv->out2;
+ break;
+ default:
+ break;
+ }
+
+ if (out) {
+ out->left_vol = ucontrol->value.integer.value[0];
+ out->right_vol = ucontrol->value.integer.value[1];
+ if (!out->active)
+ return 1;
+ }
+
+ ret = snd_soc_put_volsw_2r(kcontrol, ucontrol);
+ if (ret < 0)
+ return ret;
+
+ /* now hit the volume update bits (always bit 8) */
+ val = wm8350_codec_read(codec, reg);
+ wm8350_codec_write(codec, reg, val | WM8350_OUT1_VU);
+ return 1;
+}
+
+static int wm8350_get_volsw_2r(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct wm8350_data *wm8350_priv = codec->private_data;
+ struct wm8350_output *out1 = &wm8350_priv->out1;
+ struct wm8350_output *out2 = &wm8350_priv->out2;
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ unsigned int reg = mc->reg;
+
+ /* If these are cached registers use the cache */
+ switch (reg) {
+ case WM8350_LOUT1_VOLUME:
+ ucontrol->value.integer.value[0] = out1->left_vol;
+ ucontrol->value.integer.value[1] = out1->right_vol;
+ return 0;
+
+ case WM8350_LOUT2_VOLUME:
+ ucontrol->value.integer.value[0] = out2->left_vol;
+ ucontrol->value.integer.value[1] = out2->right_vol;
+ return 0;
+
+ default:
+ break;
+ }
+
+ return snd_soc_get_volsw_2r(kcontrol, ucontrol);
+}
+
+/* double control with volume update */
+#define SOC_WM8350_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, \
+ xinvert, tlv_array) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
+ .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
+ SNDRV_CTL_ELEM_ACCESS_READWRITE | \
+ SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
+ .tlv.p = (tlv_array), \
+ .info = snd_soc_info_volsw_2r, \
+ .get = wm8350_get_volsw_2r, .put = wm8350_put_volsw_2r_vu, \
+ .private_value = (unsigned long)&(struct soc_mixer_control) \
+ {.reg = reg_left, .rreg = reg_right, .shift = xshift, \
+ .rshift = xshift, .max = xmax, .invert = xinvert}, }
+
+static const char *wm8350_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" };
+static const char *wm8350_pol[] = { "Normal", "Inv R", "Inv L", "Inv L & R" };
+static const char *wm8350_dacmutem[] = { "Normal", "Soft" };
+static const char *wm8350_dacmutes[] = { "Fast", "Slow" };
+static const char *wm8350_dacfilter[] = { "Normal", "Sloping" };
+static const char *wm8350_adcfilter[] = { "None", "High Pass" };
+static const char *wm8350_adchp[] = { "44.1kHz", "8kHz", "16kHz", "32kHz" };
+static const char *wm8350_lr[] = { "Left", "Right" };
+
+static const struct soc_enum wm8350_enum[] = {
+ SOC_ENUM_SINGLE(WM8350_DAC_CONTROL, 4, 4, wm8350_deemp),
+ SOC_ENUM_SINGLE(WM8350_DAC_CONTROL, 0, 4, wm8350_pol),
+ SOC_ENUM_SINGLE(WM8350_DAC_MUTE_VOLUME, 14, 2, wm8350_dacmutem),
+ SOC_ENUM_SINGLE(WM8350_DAC_MUTE_VOLUME, 13, 2, wm8350_dacmutes),
+ SOC_ENUM_SINGLE(WM8350_DAC_MUTE_VOLUME, 12, 2, wm8350_dacfilter),
+ SOC_ENUM_SINGLE(WM8350_ADC_CONTROL, 15, 2, wm8350_adcfilter),
+ SOC_ENUM_SINGLE(WM8350_ADC_CONTROL, 8, 4, wm8350_adchp),
+ SOC_ENUM_SINGLE(WM8350_ADC_CONTROL, 0, 4, wm8350_pol),
+ SOC_ENUM_SINGLE(WM8350_INPUT_MIXER_VOLUME, 15, 2, wm8350_lr),
+};
+
+static DECLARE_TLV_DB_LINEAR(pre_amp_tlv, -1200, 3525);
+static DECLARE_TLV_DB_LINEAR(out_pga_tlv, -5700, 600);
+static DECLARE_TLV_DB_SCALE(dac_pcm_tlv, -7163, 36, 1);
+static DECLARE_TLV_DB_SCALE(adc_pcm_tlv, -12700, 50, 1);
+static DECLARE_TLV_DB_SCALE(out_mix_tlv, -1500, 300, 1);
+
+static const unsigned int capture_sd_tlv[] = {
+ TLV_DB_RANGE_HEAD(2),
+ 0, 12, TLV_DB_SCALE_ITEM(-3600, 300, 1),
+ 13, 15, TLV_DB_SCALE_ITEM(0, 0, 0),
+};
+
+static const struct snd_kcontrol_new wm8350_snd_controls[] = {
+ SOC_ENUM("Playback Deemphasis", wm8350_enum[0]),
+ SOC_ENUM("Playback DAC Inversion", wm8350_enum[1]),
+ SOC_WM8350_DOUBLE_R_TLV("Playback PCM Volume",
+ WM8350_DAC_DIGITAL_VOLUME_L,
+ WM8350_DAC_DIGITAL_VOLUME_R,
+ 0, 255, 0, dac_pcm_tlv),
+ SOC_ENUM("Playback PCM Mute Function", wm8350_enum[2]),
+ SOC_ENUM("Playback PCM Mute Speed", wm8350_enum[3]),
+ SOC_ENUM("Playback PCM Filter", wm8350_enum[4]),
+ SOC_ENUM("Capture PCM Filter", wm8350_enum[5]),
+ SOC_ENUM("Capture PCM HP Filter", wm8350_enum[6]),
+ SOC_ENUM("Capture ADC Inversion", wm8350_enum[7]),
+ SOC_WM8350_DOUBLE_R_TLV("Capture PCM Volume",
+ WM8350_ADC_DIGITAL_VOLUME_L,
+ WM8350_ADC_DIGITAL_VOLUME_R,
+ 0, 255, 0, adc_pcm_tlv),
+ SOC_DOUBLE_TLV("Capture Sidetone Volume",
+ WM8350_ADC_DIVIDER,
+ 8, 4, 15, 1, capture_sd_tlv),
+ SOC_WM8350_DOUBLE_R_TLV("Capture Volume",
+ WM8350_LEFT_INPUT_VOLUME,
+ WM8350_RIGHT_INPUT_VOLUME,
+ 2, 63, 0, pre_amp_tlv),
+ SOC_DOUBLE_R("Capture ZC Switch",
+ WM8350_LEFT_INPUT_VOLUME,
+ WM8350_RIGHT_INPUT_VOLUME, 13, 1, 0),
+ SOC_SINGLE_TLV("Left Input Left Sidetone Volume",
+ WM8350_OUTPUT_LEFT_MIXER_VOLUME, 1, 7, 0, out_mix_tlv),
+ SOC_SINGLE_TLV("Left Input Right Sidetone Volume",
+ WM8350_OUTPUT_LEFT_MIXER_VOLUME,
+ 5, 7, 0, out_mix_tlv),
+ SOC_SINGLE_TLV("Left Input Bypass Volume",
+ WM8350_OUTPUT_LEFT_MIXER_VOLUME,
+ 9, 7, 0, out_mix_tlv),
+ SOC_SINGLE_TLV("Right Input Left Sidetone Volume",
+ WM8350_OUTPUT_RIGHT_MIXER_VOLUME,
+ 1, 7, 0, out_mix_tlv),
+ SOC_SINGLE_TLV("Right Input Right Sidetone Volume",
+ WM8350_OUTPUT_RIGHT_MIXER_VOLUME,
+ 5, 7, 0, out_mix_tlv),
+ SOC_SINGLE_TLV("Right Input Bypass Volume",
+ WM8350_OUTPUT_RIGHT_MIXER_VOLUME,
+ 13, 7, 0, out_mix_tlv),
+ SOC_SINGLE("Left Input Mixer +20dB Switch",
+ WM8350_INPUT_MIXER_VOLUME_L, 0, 1, 0),
+ SOC_SINGLE("Right Input Mixer +20dB Switch",
+ WM8350_INPUT_MIXER_VOLUME_R, 0, 1, 0),
+ SOC_SINGLE_TLV("Out4 Capture Volume",
+ WM8350_INPUT_MIXER_VOLUME,
+ 1, 7, 0, out_mix_tlv),
+ SOC_WM8350_DOUBLE_R_TLV("Out1 Playback Volume",
+ WM8350_LOUT1_VOLUME,
+ WM8350_ROUT1_VOLUME,
+ 2, 63, 0, out_pga_tlv),
+ SOC_DOUBLE_R("Out1 Playback ZC Switch",
+ WM8350_LOUT1_VOLUME,
+ WM8350_ROUT1_VOLUME, 13, 1, 0),
+ SOC_WM8350_DOUBLE_R_TLV("Out2 Playback Volume",
+ WM8350_LOUT2_VOLUME,
+ WM8350_ROUT2_VOLUME,
+ 2, 63, 0, out_pga_tlv),
+ SOC_DOUBLE_R("Out2 Playback ZC Switch", WM8350_LOUT2_VOLUME,
+ WM8350_ROUT2_VOLUME, 13, 1, 0),
+ SOC_SINGLE("Out2 Right Invert Switch", WM8350_ROUT2_VOLUME, 10, 1, 0),
+ SOC_SINGLE_TLV("Out2 Beep Volume", WM8350_BEEP_VOLUME,
+ 5, 7, 0, out_mix_tlv),
+
+ SOC_DOUBLE_R("Out1 Playback Switch",
+ WM8350_LOUT1_VOLUME,
+ WM8350_ROUT1_VOLUME,
+ 14, 1, 1),
+ SOC_DOUBLE_R("Out2 Playback Switch",
+ WM8350_LOUT2_VOLUME,
+ WM8350_ROUT2_VOLUME,
+ 14, 1, 1),
+};
+
+/*
+ * DAPM Controls
+ */
+
+/* Left Playback Mixer */
+static const struct snd_kcontrol_new wm8350_left_play_mixer_controls[] = {
+ SOC_DAPM_SINGLE("Playback Switch",
+ WM8350_LEFT_MIXER_CONTROL, 11, 1, 0),
+ SOC_DAPM_SINGLE("Left Bypass Switch",
+ WM8350_LEFT_MIXER_CONTROL, 2, 1, 0),
+ SOC_DAPM_SINGLE("Right Playback Switch",
+ WM8350_LEFT_MIXER_CONTROL, 12, 1, 0),
+ SOC_DAPM_SINGLE("Left Sidetone Switch",
+ WM8350_LEFT_MIXER_CONTROL, 0, 1, 0),
+ SOC_DAPM_SINGLE("Right Sidetone Switch",
+ WM8350_LEFT_MIXER_CONTROL, 1, 1, 0),
+};
+
+/* Right Playback Mixer */
+static const struct snd_kcontrol_new wm8350_right_play_mixer_controls[] = {
+ SOC_DAPM_SINGLE("Playback Switch",
+ WM8350_RIGHT_MIXER_CONTROL, 12, 1, 0),
+ SOC_DAPM_SINGLE("Right Bypass Switch",
+ WM8350_RIGHT_MIXER_CONTROL, 3, 1, 0),
+ SOC_DAPM_SINGLE("Left Playback Switch",
+ WM8350_RIGHT_MIXER_CONTROL, 11, 1, 0),
+ SOC_DAPM_SINGLE("Left Sidetone Switch",
+ WM8350_RIGHT_MIXER_CONTROL, 0, 1, 0),
+ SOC_DAPM_SINGLE("Right Sidetone Switch",
+ WM8350_RIGHT_MIXER_CONTROL, 1, 1, 0),
+};
+
+/* Out4 Mixer */
+static const struct snd_kcontrol_new wm8350_out4_mixer_controls[] = {
+ SOC_DAPM_SINGLE("Right Playback Switch",
+ WM8350_OUT4_MIXER_CONTROL, 12, 1, 0),
+ SOC_DAPM_SINGLE("Left Playback Switch",
+ WM8350_OUT4_MIXER_CONTROL, 11, 1, 0),
+ SOC_DAPM_SINGLE("Right Capture Switch",
+ WM8350_OUT4_MIXER_CONTROL, 9, 1, 0),
+ SOC_DAPM_SINGLE("Out3 Playback Switch",
+ WM8350_OUT4_MIXER_CONTROL, 2, 1, 0),
+ SOC_DAPM_SINGLE("Right Mixer Switch",
+ WM8350_OUT4_MIXER_CONTROL, 1, 1, 0),
+ SOC_DAPM_SINGLE("Left Mixer Switch",
+ WM8350_OUT4_MIXER_CONTROL, 0, 1, 0),
+};
+
+/* Out3 Mixer */
+static const struct snd_kcontrol_new wm8350_out3_mixer_controls[] = {
+ SOC_DAPM_SINGLE("Left Playback Switch",
+ WM8350_OUT3_MIXER_CONTROL, 11, 1, 0),
+ SOC_DAPM_SINGLE("Left Capture Switch",
+ WM8350_OUT3_MIXER_CONTROL, 8, 1, 0),
+ SOC_DAPM_SINGLE("Out4 Playback Switch",
+ WM8350_OUT3_MIXER_CONTROL, 3, 1, 0),
+ SOC_DAPM_SINGLE("Left Mixer Switch",
+ WM8350_OUT3_MIXER_CONTROL, 0, 1, 0),
+};
+
+/* Left Input Mixer */
+static const struct snd_kcontrol_new wm8350_left_capt_mixer_controls[] = {
+ SOC_DAPM_SINGLE_TLV("L2 Capture Volume",
+ WM8350_INPUT_MIXER_VOLUME_L, 1, 7, 0, out_mix_tlv),
+ SOC_DAPM_SINGLE_TLV("L3 Capture Volume",
+ WM8350_INPUT_MIXER_VOLUME_L, 9, 7, 0, out_mix_tlv),
+ SOC_DAPM_SINGLE("PGA Capture Switch",
+ WM8350_LEFT_INPUT_VOLUME, 14, 1, 0),
+};
+
+/* Right Input Mixer */
+static const struct snd_kcontrol_new wm8350_right_capt_mixer_controls[] = {
+ SOC_DAPM_SINGLE_TLV("L2 Capture Volume",
+ WM8350_INPUT_MIXER_VOLUME_R, 5, 7, 0, out_mix_tlv),
+ SOC_DAPM_SINGLE_TLV("L3 Capture Volume",
+ WM8350_INPUT_MIXER_VOLUME_R, 13, 7, 0, out_mix_tlv),
+ SOC_DAPM_SINGLE("PGA Capture Switch",
+ WM8350_RIGHT_INPUT_VOLUME, 14, 1, 0),
+};
+
+/* Left Mic Mixer */
+static const struct snd_kcontrol_new wm8350_left_mic_mixer_controls[] = {
+ SOC_DAPM_SINGLE("INN Capture Switch", WM8350_INPUT_CONTROL, 1, 1, 0),
+ SOC_DAPM_SINGLE("INP Capture Switch", WM8350_INPUT_CONTROL, 0, 1, 0),
+ SOC_DAPM_SINGLE("IN2 Capture Switch", WM8350_INPUT_CONTROL, 2, 1, 0),
+};
+
+/* Right Mic Mixer */
+static const struct snd_kcontrol_new wm8350_right_mic_mixer_controls[] = {
+ SOC_DAPM_SINGLE("INN Capture Switch", WM8350_INPUT_CONTROL, 9, 1, 0),
+ SOC_DAPM_SINGLE("INP Capture Switch", WM8350_INPUT_CONTROL, 8, 1, 0),
+ SOC_DAPM_SINGLE("IN2 Capture Switch", WM8350_INPUT_CONTROL, 10, 1, 0),
+};
+
+/* Beep Switch */
+static const struct snd_kcontrol_new wm8350_beep_switch_controls =
+SOC_DAPM_SINGLE("Switch", WM8350_BEEP_VOLUME, 15, 1, 1);
+
+/* Out4 Capture Mux */
+static const struct snd_kcontrol_new wm8350_out4_capture_controls =
+SOC_DAPM_ENUM("Route", wm8350_enum[8]);
+
+static const struct snd_soc_dapm_widget wm8350_dapm_widgets[] = {
+
+ SND_SOC_DAPM_PGA("IN3R PGA", WM8350_POWER_MGMT_2, 11, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("IN3L PGA", WM8350_POWER_MGMT_2, 10, 0, NULL, 0),
+ SND_SOC_DAPM_PGA_E("Right Out2 PGA", WM8350_POWER_MGMT_3, 3, 0, NULL,
+ 0, pga_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+ SND_SOC_DAPM_PGA_E("Left Out2 PGA", WM8350_POWER_MGMT_3, 2, 0, NULL, 0,
+ pga_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+ SND_SOC_DAPM_PGA_E("Right Out1 PGA", WM8350_POWER_MGMT_3, 1, 0, NULL,
+ 0, pga_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+ SND_SOC_DAPM_PGA_E("Left Out1 PGA", WM8350_POWER_MGMT_3, 0, 0, NULL, 0,
+ pga_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+
+ SND_SOC_DAPM_MIXER("Right Capture Mixer", WM8350_POWER_MGMT_2,
+ 7, 0, &wm8350_right_capt_mixer_controls[0],
+ ARRAY_SIZE(wm8350_right_capt_mixer_controls)),
+
+ SND_SOC_DAPM_MIXER("Left Capture Mixer", WM8350_POWER_MGMT_2,
+ 6, 0, &wm8350_left_capt_mixer_controls[0],
+ ARRAY_SIZE(wm8350_left_capt_mixer_controls)),
+
+ SND_SOC_DAPM_MIXER("Out4 Mixer", WM8350_POWER_MGMT_2, 5, 0,
+ &wm8350_out4_mixer_controls[0],
+ ARRAY_SIZE(wm8350_out4_mixer_controls)),
+
+ SND_SOC_DAPM_MIXER("Out3 Mixer", WM8350_POWER_MGMT_2, 4, 0,
+ &wm8350_out3_mixer_controls[0],
+ ARRAY_SIZE(wm8350_out3_mixer_controls)),
+
+ SND_SOC_DAPM_MIXER("Right Playback Mixer", WM8350_POWER_MGMT_2, 1, 0,
+ &wm8350_right_play_mixer_controls[0],
+ ARRAY_SIZE(wm8350_right_play_mixer_controls)),
+
+ SND_SOC_DAPM_MIXER("Left Playback Mixer", WM8350_POWER_MGMT_2, 0, 0,
+ &wm8350_left_play_mixer_controls[0],
+ ARRAY_SIZE(wm8350_left_play_mixer_controls)),
+
+ SND_SOC_DAPM_MIXER("Left Mic Mixer", WM8350_POWER_MGMT_2, 8, 0,
+ &wm8350_left_mic_mixer_controls[0],
+ ARRAY_SIZE(wm8350_left_mic_mixer_controls)),
+
+ SND_SOC_DAPM_MIXER("Right Mic Mixer", WM8350_POWER_MGMT_2, 9, 0,
+ &wm8350_right_mic_mixer_controls[0],
+ ARRAY_SIZE(wm8350_right_mic_mixer_controls)),
+
+ /* virtual mixer for Beep and Out2R */
+ SND_SOC_DAPM_MIXER("Out2 Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
+
+ SND_SOC_DAPM_SWITCH("Beep", WM8350_POWER_MGMT_3, 7, 0,
+ &wm8350_beep_switch_controls),
+
+ SND_SOC_DAPM_ADC("Right ADC", "Right Capture",
+ WM8350_POWER_MGMT_4, 3, 0),
+ SND_SOC_DAPM_ADC("Left ADC", "Left Capture",
+ WM8350_POWER_MGMT_4, 2, 0),
+ SND_SOC_DAPM_DAC("Right DAC", "Right Playback",
+ WM8350_POWER_MGMT_4, 5, 0),
+ SND_SOC_DAPM_DAC("Left DAC", "Left Playback",
+ WM8350_POWER_MGMT_4, 4, 0),
+
+ SND_SOC_DAPM_MICBIAS("Mic Bias", WM8350_POWER_MGMT_1, 4, 0),
+
+ SND_SOC_DAPM_MUX("Out4 Capture Channel", SND_SOC_NOPM, 0, 0,
+ &wm8350_out4_capture_controls),
+
+ SND_SOC_DAPM_OUTPUT("OUT1R"),
+ SND_SOC_DAPM_OUTPUT("OUT1L"),
+ SND_SOC_DAPM_OUTPUT("OUT2R"),
+ SND_SOC_DAPM_OUTPUT("OUT2L"),
+ SND_SOC_DAPM_OUTPUT("OUT3"),
+ SND_SOC_DAPM_OUTPUT("OUT4"),
+
+ SND_SOC_DAPM_INPUT("IN1RN"),
+ SND_SOC_DAPM_INPUT("IN1RP"),
+ SND_SOC_DAPM_INPUT("IN2R"),
+ SND_SOC_DAPM_INPUT("IN1LP"),
+ SND_SOC_DAPM_INPUT("IN1LN"),
+ SND_SOC_DAPM_INPUT("IN2L"),
+ SND_SOC_DAPM_INPUT("IN3R"),
+ SND_SOC_DAPM_INPUT("IN3L"),
+};
+
+static const struct snd_soc_dapm_route audio_map[] = {
+
+ /* left playback mixer */
+ {"Left Playback Mixer", "Playback Switch", "Left DAC"},
+ {"Left Playback Mixer", "Left Bypass Switch", "IN3L PGA"},
+ {"Left Playback Mixer", "Right Playback Switch", "Right DAC"},
+ {"Left Playback Mixer", "Left Sidetone Switch", "Left Mic Mixer"},
+ {"Left Playback Mixer", "Right Sidetone Switch", "Right Mic Mixer"},
+
+ /* right playback mixer */
+ {"Right Playback Mixer", "Playback Switch", "Right DAC"},
+ {"Right Playback Mixer", "Right Bypass Switch", "IN3R PGA"},
+ {"Right Playback Mixer", "Left Playback Switch", "Left DAC"},
+ {"Right Playback Mixer", "Left Sidetone Switch", "Left Mic Mixer"},
+ {"Right Playback Mixer", "Right Sidetone Switch", "Right Mic Mixer"},
+
+ /* out4 playback mixer */
+ {"Out4 Mixer", "Right Playback Switch", "Right DAC"},
+ {"Out4 Mixer", "Left Playback Switch", "Left DAC"},
+ {"Out4 Mixer", "Right Capture Switch", "Right Capture Mixer"},
+ {"Out4 Mixer", "Out3 Playback Switch", "Out3 Mixer"},
+ {"Out4 Mixer", "Right Mixer Switch", "Right Playback Mixer"},
+ {"Out4 Mixer", "Left Mixer Switch", "Left Playback Mixer"},
+ {"OUT4", NULL, "Out4 Mixer"},
+
+ /* out3 playback mixer */
+ {"Out3 Mixer", "Left Playback Switch", "Left DAC"},
+ {"Out3 Mixer", "Left Capture Switch", "Left Capture Mixer"},
+ {"Out3 Mixer", "Left Mixer Switch", "Left Playback Mixer"},
+ {"Out3 Mixer", "Out4 Playback Switch", "Out4 Mixer"},
+ {"OUT3", NULL, "Out3 Mixer"},
+
+ /* out2 */
+ {"Right Out2 PGA", NULL, "Right Playback Mixer"},
+ {"Left Out2 PGA", NULL, "Left Playback Mixer"},
+ {"OUT2L", NULL, "Left Out2 PGA"},
+ {"OUT2R", NULL, "Right Out2 PGA"},
+
+ /* out1 */
+ {"Right Out1 PGA", NULL, "Right Playback Mixer"},
+ {"Left Out1 PGA", NULL, "Left Playback Mixer"},
+ {"OUT1L", NULL, "Left Out1 PGA"},
+ {"OUT1R", NULL, "Right Out1 PGA"},
+
+ /* ADCs */
+ {"Left ADC", NULL, "Left Capture Mixer"},
+ {"Right ADC", NULL, "Right Capture Mixer"},
+
+ /* Left capture mixer */
+ {"Left Capture Mixer", "L2 Capture Volume", "IN2L"},
+ {"Left Capture Mixer", "L3 Capture Volume", "IN3L PGA"},
+ {"Left Capture Mixer", "PGA Capture Switch", "Left Mic Mixer"},
+ {"Left Capture Mixer", NULL, "Out4 Capture Channel"},
+
+ /* Right capture mixer */
+ {"Right Capture Mixer", "L2 Capture Volume", "IN2R"},
+ {"Right Capture Mixer", "L3 Capture Volume", "IN3R PGA"},
+ {"Right Capture Mixer", "PGA Capture Switch", "Right Mic Mixer"},
+ {"Right Capture Mixer", NULL, "Out4 Capture Channel"},
+
+ /* L3 Inputs */
+ {"IN3L PGA", NULL, "IN3L"},
+ {"IN3R PGA", NULL, "IN3R"},
+
+ /* Left Mic mixer */
+ {"Left Mic Mixer", "INN Capture Switch", "IN1LN"},
+ {"Left Mic Mixer", "INP Capture Switch", "IN1LP"},
+ {"Left Mic Mixer", "IN2 Capture Switch", "IN2L"},
+
+ /* Right Mic mixer */
+ {"Right Mic Mixer", "INN Capture Switch", "IN1RN"},
+ {"Right Mic Mixer", "INP Capture Switch", "IN1RP"},
+ {"Right Mic Mixer", "IN2 Capture Switch", "IN2R"},
+
+ /* out 4 capture */
+ {"Out4 Capture Channel", NULL, "Out4 Mixer"},
+
+ /* Beep */
+ {"Beep", NULL, "IN3R PGA"},
+};
+
+static int wm8350_add_controls(struct snd_soc_codec *codec)
+{
+ int err, i;
+
+ for (i = 0; i < ARRAY_SIZE(wm8350_snd_controls); i++) {
+ err = snd_ctl_add(codec->card,
+ snd_soc_cnew(&wm8350_snd_controls[i],
+ codec, NULL));
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
+static int wm8350_add_widgets(struct snd_soc_codec *codec)
+{
+ int ret;
+
+ ret = snd_soc_dapm_new_controls(codec,
+ wm8350_dapm_widgets,
+ ARRAY_SIZE(wm8350_dapm_widgets));
+ if (ret != 0) {
+ dev_err(codec->dev, "dapm control register failed\n");
+ return ret;
+ }
+
+ /* set up audio paths */
+ ret = snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
+ if (ret != 0) {
+ dev_err(codec->dev, "DAPM route register failed\n");
+ return ret;
+ }
+
+ return snd_soc_dapm_new_widgets(codec);
+}
+
+static int wm8350_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 wm8350 *wm8350 = codec->control_data;
+ u16 fll_4;
+
+ switch (clk_id) {
+ case WM8350_MCLK_SEL_MCLK:
+ wm8350_clear_bits(wm8350, WM8350_CLOCK_CONTROL_1,
+ WM8350_MCLK_SEL);
+ break;
+ case WM8350_MCLK_SEL_PLL_MCLK:
+ case WM8350_MCLK_SEL_PLL_DAC:
+ case WM8350_MCLK_SEL_PLL_ADC:
+ case WM8350_MCLK_SEL_PLL_32K:
+ wm8350_set_bits(wm8350, WM8350_CLOCK_CONTROL_1,
+ WM8350_MCLK_SEL);
+ fll_4 = wm8350_codec_read(codec, WM8350_FLL_CONTROL_4) &
+ ~WM8350_FLL_CLK_SRC_MASK;
+ wm8350_codec_write(codec, WM8350_FLL_CONTROL_4, fll_4 | clk_id);
+ break;
+ }
+
+ /* MCLK direction */
+ if (dir == WM8350_MCLK_DIR_OUT)
+ wm8350_set_bits(wm8350, WM8350_CLOCK_CONTROL_2,
+ WM8350_MCLK_DIR);
+ else
+ wm8350_clear_bits(wm8350, WM8350_CLOCK_CONTROL_2,
+ WM8350_MCLK_DIR);
+
+ return 0;
+}
+
+static int wm8350_set_clkdiv(struct snd_soc_dai *codec_dai, int div_id, int div)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ u16 val;
+
+ switch (div_id) {
+ case WM8350_ADC_CLKDIV:
+ val = wm8350_codec_read(codec, WM8350_ADC_DIVIDER) &
+ ~WM8350_ADC_CLKDIV_MASK;
+ wm8350_codec_write(codec, WM8350_ADC_DIVIDER, val | div);
+ break;
+ case WM8350_DAC_CLKDIV:
+ val = wm8350_codec_read(codec, WM8350_DAC_CLOCK_CONTROL) &
+ ~WM8350_DAC_CLKDIV_MASK;
+ wm8350_codec_write(codec, WM8350_DAC_CLOCK_CONTROL, val | div);
+ break;
+ case WM8350_BCLK_CLKDIV:
+ val = wm8350_codec_read(codec, WM8350_CLOCK_CONTROL_1) &
+ ~WM8350_BCLK_DIV_MASK;
+ wm8350_codec_write(codec, WM8350_CLOCK_CONTROL_1, val | div);
+ break;
+ case WM8350_OPCLK_CLKDIV:
+ val = wm8350_codec_read(codec, WM8350_CLOCK_CONTROL_1) &
+ ~WM8350_OPCLK_DIV_MASK;
+ wm8350_codec_write(codec, WM8350_CLOCK_CONTROL_1, val | div);
+ break;
+ case WM8350_SYS_CLKDIV:
+ val = wm8350_codec_read(codec, WM8350_CLOCK_CONTROL_1) &
+ ~WM8350_MCLK_DIV_MASK;
+ wm8350_codec_write(codec, WM8350_CLOCK_CONTROL_1, val | div);
+ break;
+ case WM8350_DACLR_CLKDIV:
+ val = wm8350_codec_read(codec, WM8350_DAC_LR_RATE) &
+ ~WM8350_DACLRC_RATE_MASK;
+ wm8350_codec_write(codec, WM8350_DAC_LR_RATE, val | div);
+ break;
+ case WM8350_ADCLR_CLKDIV:
+ val = wm8350_codec_read(codec, WM8350_ADC_LR_RATE) &
+ ~WM8350_ADCLRC_RATE_MASK;
+ wm8350_codec_write(codec, WM8350_ADC_LR_RATE, val | div);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int wm8350_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ u16 iface = wm8350_codec_read(codec, WM8350_AI_FORMATING) &
+ ~(WM8350_AIF_BCLK_INV | WM8350_AIF_LRCLK_INV | WM8350_AIF_FMT_MASK);
+ u16 master = wm8350_codec_read(codec, WM8350_AI_DAC_CONTROL) &
+ ~WM8350_BCLK_MSTR;
+ u16 dac_lrc = wm8350_codec_read(codec, WM8350_DAC_LR_RATE) &
+ ~WM8350_DACLRC_ENA;
+ u16 adc_lrc = wm8350_codec_read(codec, WM8350_ADC_LR_RATE) &
+ ~WM8350_ADCLRC_ENA;
+
+ /* set master/slave audio interface */
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ master |= WM8350_BCLK_MSTR;
+ dac_lrc |= WM8350_DACLRC_ENA;
+ adc_lrc |= WM8350_ADCLRC_ENA;
+ 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 |= 0x2 << 8;
+ break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ iface |= 0x1 << 8;
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ iface |= 0x3 << 8;
+ break;
+ case SND_SOC_DAIFMT_DSP_B:
+ iface |= 0x3 << 8; /* lg not sure which mode */
+ 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 |= WM8350_AIF_LRCLK_INV | WM8350_AIF_BCLK_INV;
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ iface |= WM8350_AIF_BCLK_INV;
+ break;
+ case SND_SOC_DAIFMT_NB_IF:
+ iface |= WM8350_AIF_LRCLK_INV;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ wm8350_codec_write(codec, WM8350_AI_FORMATING, iface);
+ wm8350_codec_write(codec, WM8350_AI_DAC_CONTROL, master);
+ wm8350_codec_write(codec, WM8350_DAC_LR_RATE, dac_lrc);
+ wm8350_codec_write(codec, WM8350_ADC_LR_RATE, adc_lrc);
+ return 0;
+}
+
+static int wm8350_pcm_trigger(struct snd_pcm_substream *substream,
+ int cmd, struct snd_soc_dai *codec_dai)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ int master = wm8350_codec_cache_read(codec, WM8350_AI_DAC_CONTROL) &
+ WM8350_BCLK_MSTR;
+ int enabled = 0;
+
+ /* Check that the DACs or ADCs are enabled since they are
+ * required for LRC in master mode. The DACs or ADCs need a
+ * valid audio path i.e. pin -> ADC or DAC -> pin before
+ * the LRC will be enabled in master mode. */
+ if (!master && cmd != SNDRV_PCM_TRIGGER_START)
+ return 0;
+
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
+ enabled = wm8350_codec_cache_read(codec, WM8350_POWER_MGMT_4) &
+ (WM8350_ADCR_ENA | WM8350_ADCL_ENA);
+ } else {
+ enabled = wm8350_codec_cache_read(codec, WM8350_POWER_MGMT_4) &
+ (WM8350_DACR_ENA | WM8350_DACL_ENA);
+ }
+
+ if (!enabled) {
+ dev_err(codec->dev,
+ "%s: invalid audio path - no clocks available\n",
+ __func__);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int wm8350_pcm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *codec_dai)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ u16 iface = wm8350_codec_read(codec, WM8350_AI_FORMATING) &
+ ~WM8350_AIF_WL_MASK;
+
+ /* bit size */
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ break;
+ case SNDRV_PCM_FORMAT_S20_3LE:
+ iface |= 0x1 << 10;
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ iface |= 0x2 << 10;
+ break;
+ case SNDRV_PCM_FORMAT_S32_LE:
+ iface |= 0x3 << 10;
+ break;
+ }
+
+ wm8350_codec_write(codec, WM8350_AI_FORMATING, iface);
+ return 0;
+}
+
+static int wm8350_mute(struct snd_soc_dai *dai, int mute)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ struct wm8350 *wm8350 = codec->control_data;
+
+ if (mute)
+ wm8350_set_bits(wm8350, WM8350_DAC_MUTE, WM8350_DAC_MUTE_ENA);
+ else
+ wm8350_clear_bits(wm8350, WM8350_DAC_MUTE, WM8350_DAC_MUTE_ENA);
+ return 0;
+}
+
+/* FLL divisors */
+struct _fll_div {
+ int div; /* FLL_OUTDIV */
+ int n;
+ int k;
+ int ratio; /* FLL_FRATIO */
+};
+
+/* The size in bits of the fll divide multiplied by 10
+ * to allow rounding later */
+#define FIXED_FLL_SIZE ((1 << 16) * 10)
+
+static inline int fll_factors(struct _fll_div *fll_div, unsigned int input,
+ unsigned int output)
+{
+ u64 Kpart;
+ unsigned int t1, t2, K, Nmod;
+
+ if (output >= 2815250 && output <= 3125000)
+ fll_div->div = 0x4;
+ else if (output >= 5625000 && output <= 6250000)
+ fll_div->div = 0x3;
+ else if (output >= 11250000 && output <= 12500000)
+ fll_div->div = 0x2;
+ else if (output >= 22500000 && output <= 25000000)
+ fll_div->div = 0x1;
+ else {
+ printk(KERN_ERR "wm8350: fll freq %d out of range\n", output);
+ return -EINVAL;
+ }
+
+ if (input > 48000)
+ fll_div->ratio = 1;
+ else
+ fll_div->ratio = 8;
+
+ t1 = output * (1 << (fll_div->div + 1));
+ t2 = input * fll_div->ratio;
+
+ fll_div->n = t1 / t2;
+ Nmod = t1 % t2;
+
+ if (Nmod) {
+ Kpart = FIXED_FLL_SIZE * (long long)Nmod;
+ do_div(Kpart, t2);
+ K = Kpart & 0xFFFFFFFF;
+
+ /* Check if we need to round */
+ if ((K % 10) >= 5)
+ K += 5;
+
+ /* Move down to proper range now rounding is done */
+ K /= 10;
+ fll_div->k = K;
+ } else
+ fll_div->k = 0;
+
+ return 0;
+}
+
+static int wm8350_set_fll(struct snd_soc_dai *codec_dai,
+ int pll_id, unsigned int freq_in,
+ unsigned int freq_out)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ struct wm8350 *wm8350 = codec->control_data;
+ struct _fll_div fll_div;
+ int ret = 0;
+ u16 fll_1, fll_4;
+
+ /* power down FLL - we need to do this for reconfiguration */
+ wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_4,
+ WM8350_FLL_ENA | WM8350_FLL_OSC_ENA);
+
+ if (freq_out == 0 || freq_in == 0)
+ return ret;
+
+ ret = fll_factors(&fll_div, freq_in, freq_out);
+ if (ret < 0)
+ return ret;
+ dev_dbg(wm8350->dev,
+ "FLL in %d FLL out %d N 0x%x K 0x%x div %d ratio %d",
+ freq_in, freq_out, fll_div.n, fll_div.k, fll_div.div,
+ fll_div.ratio);
+
+ /* set up N.K & dividers */
+ fll_1 = wm8350_codec_read(codec, WM8350_FLL_CONTROL_1) &
+ ~(WM8350_FLL_OUTDIV_MASK | WM8350_FLL_RSP_RATE_MASK | 0xc000);
+ wm8350_codec_write(codec, WM8350_FLL_CONTROL_1,
+ fll_1 | (fll_div.div << 8) | 0x50);
+ wm8350_codec_write(codec, WM8350_FLL_CONTROL_2,
+ (fll_div.ratio << 11) | (fll_div.
+ n & WM8350_FLL_N_MASK));
+ wm8350_codec_write(codec, WM8350_FLL_CONTROL_3, fll_div.k);
+ fll_4 = wm8350_codec_read(codec, WM8350_FLL_CONTROL_4) &
+ ~(WM8350_FLL_FRAC | WM8350_FLL_SLOW_LOCK_REF);
+ wm8350_codec_write(codec, WM8350_FLL_CONTROL_4,
+ fll_4 | (fll_div.k ? WM8350_FLL_FRAC : 0) |
+ (fll_div.ratio == 8 ? WM8350_FLL_SLOW_LOCK_REF : 0));
+
+ /* power FLL on */
+ wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_FLL_OSC_ENA);
+ wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_FLL_ENA);
+
+ return 0;
+}
+
+static int wm8350_set_bias_level(struct snd_soc_codec *codec,
+ enum snd_soc_bias_level level)
+{
+ struct wm8350 *wm8350 = codec->control_data;
+ struct wm8350_data *priv = codec->private_data;
+ struct wm8350_audio_platform_data *platform =
+ wm8350->codec.platform_data;
+ u16 pm1;
+ int ret;
+
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1) &
+ ~(WM8350_VMID_MASK | WM8350_CODEC_ISEL_MASK);
+ wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1,
+ pm1 | WM8350_VMID_50K |
+ platform->codec_current_on << 14);
+ break;
+
+ case SND_SOC_BIAS_PREPARE:
+ pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1);
+ pm1 &= ~WM8350_VMID_MASK;
+ wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1,
+ pm1 | WM8350_VMID_50K);
+ break;
+
+ case SND_SOC_BIAS_STANDBY:
+ if (codec->bias_level == SND_SOC_BIAS_OFF) {
+ ret = regulator_bulk_enable(ARRAY_SIZE(priv->supplies),
+ priv->supplies);
+ if (ret != 0)
+ return ret;
+
+ /* Enable the system clock */
+ wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4,
+ WM8350_SYSCLK_ENA);
+
+ /* mute DAC & outputs */
+ wm8350_set_bits(wm8350, WM8350_DAC_MUTE,
+ WM8350_DAC_MUTE_ENA);
+
+ /* discharge cap memory */
+ wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL,
+ platform->dis_out1 |
+ (platform->dis_out2 << 2) |
+ (platform->dis_out3 << 4) |
+ (platform->dis_out4 << 6));
+
+ /* wait for discharge */
+ schedule_timeout_interruptible(msecs_to_jiffies
+ (platform->
+ cap_discharge_msecs));
+
+ /* enable antipop */
+ wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL,
+ (platform->vmid_s_curve << 8));
+
+ /* ramp up vmid */
+ wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1,
+ (platform->
+ codec_current_charge << 14) |
+ WM8350_VMID_5K | WM8350_VMIDEN |
+ WM8350_VBUFEN);
+
+ /* wait for vmid */
+ schedule_timeout_interruptible(msecs_to_jiffies
+ (platform->
+ vmid_charge_msecs));
+
+ /* turn on vmid 300k */
+ pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1) &
+ ~(WM8350_VMID_MASK | WM8350_CODEC_ISEL_MASK);
+ pm1 |= WM8350_VMID_300K |
+ (platform->codec_current_standby << 14);
+ wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1,
+ pm1);
+
+
+ /* enable analogue bias */
+ pm1 |= WM8350_BIASEN;
+ wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1, pm1);
+
+ /* disable antipop */
+ wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL, 0);
+
+ } else {
+ /* turn on vmid 300k and reduce current */
+ pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1) &
+ ~(WM8350_VMID_MASK | WM8350_CODEC_ISEL_MASK);
+ wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1,
+ pm1 | WM8350_VMID_300K |
+ (platform->
+ codec_current_standby << 14));
+
+ }
+ break;
+
+ case SND_SOC_BIAS_OFF:
+
+ /* mute DAC & enable outputs */
+ wm8350_set_bits(wm8350, WM8350_DAC_MUTE, WM8350_DAC_MUTE_ENA);
+
+ wm8350_set_bits(wm8350, WM8350_POWER_MGMT_3,
+ WM8350_OUT1L_ENA | WM8350_OUT1R_ENA |
+ WM8350_OUT2L_ENA | WM8350_OUT2R_ENA);
+
+ /* enable anti pop S curve */
+ wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL,
+ (platform->vmid_s_curve << 8));
+
+ /* turn off vmid */
+ pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1) &
+ ~WM8350_VMIDEN;
+ wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1, pm1);
+
+ /* wait */
+ schedule_timeout_interruptible(msecs_to_jiffies
+ (platform->
+ vmid_discharge_msecs));
+
+ wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL,
+ (platform->vmid_s_curve << 8) |
+ platform->dis_out1 |
+ (platform->dis_out2 << 2) |
+ (platform->dis_out3 << 4) |
+ (platform->dis_out4 << 6));
+
+ /* turn off VBuf and drain */
+ pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1) &
+ ~(WM8350_VBUFEN | WM8350_VMID_MASK);
+ wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1,
+ pm1 | WM8350_OUTPUT_DRAIN_EN);
+
+ /* wait */
+ schedule_timeout_interruptible(msecs_to_jiffies
+ (platform->drain_msecs));
+
+ pm1 &= ~WM8350_BIASEN;
+ wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1, pm1);
+
+ /* disable anti-pop */
+ wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL, 0);
+
+ wm8350_clear_bits(wm8350, WM8350_LOUT1_VOLUME,
+ WM8350_OUT1L_ENA);
+ wm8350_clear_bits(wm8350, WM8350_ROUT1_VOLUME,
+ WM8350_OUT1R_ENA);
+ wm8350_clear_bits(wm8350, WM8350_LOUT2_VOLUME,
+ WM8350_OUT2L_ENA);
+ wm8350_clear_bits(wm8350, WM8350_ROUT2_VOLUME,
+ WM8350_OUT2R_ENA);
+
+ /* disable clock gen */
+ wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_4,
+ WM8350_SYSCLK_ENA);
+
+ regulator_bulk_disable(ARRAY_SIZE(priv->supplies),
+ priv->supplies);
+ break;
+ }
+ codec->bias_level = level;
+ return 0;
+}
+
+static int wm8350_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;
+
+ wm8350_set_bias_level(codec, SND_SOC_BIAS_OFF);
+ return 0;
+}
+
+static int wm8350_resume(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec = socdev->codec;
+
+ wm8350_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+
+ if (codec->suspend_bias_level == SND_SOC_BIAS_ON)
+ wm8350_set_bias_level(codec, SND_SOC_BIAS_ON);
+
+ return 0;
+}
+
+static struct snd_soc_codec *wm8350_codec;
+
+static int wm8350_probe(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec;
+ struct wm8350 *wm8350;
+ struct wm8350_data *priv;
+ int ret;
+ struct wm8350_output *out1;
+ struct wm8350_output *out2;
+
+ BUG_ON(!wm8350_codec);
+
+ socdev->codec = wm8350_codec;
+ codec = socdev->codec;
+ wm8350 = codec->control_data;
+ priv = codec->private_data;
+
+ /* Enable the codec */
+ wm8350_set_bits(wm8350, WM8350_POWER_MGMT_5, WM8350_CODEC_ENA);
+
+ /* Enable robust clocking mode in ADC */
+ wm8350_codec_write(codec, WM8350_SECURITY, 0xa7);
+ wm8350_codec_write(codec, 0xde, 0x13);
+ wm8350_codec_write(codec, WM8350_SECURITY, 0);
+
+ /* read OUT1 & OUT2 volumes */
+ out1 = &priv->out1;
+ out2 = &priv->out2;
+ out1->left_vol = (wm8350_reg_read(wm8350, WM8350_LOUT1_VOLUME) &
+ WM8350_OUT1L_VOL_MASK) >> WM8350_OUT1L_VOL_SHIFT;
+ out1->right_vol = (wm8350_reg_read(wm8350, WM8350_ROUT1_VOLUME) &
+ WM8350_OUT1R_VOL_MASK) >> WM8350_OUT1R_VOL_SHIFT;
+ out2->left_vol = (wm8350_reg_read(wm8350, WM8350_LOUT2_VOLUME) &
+ WM8350_OUT2L_VOL_MASK) >> WM8350_OUT1L_VOL_SHIFT;
+ out2->right_vol = (wm8350_reg_read(wm8350, WM8350_ROUT2_VOLUME) &
+ WM8350_OUT2R_VOL_MASK) >> WM8350_OUT1R_VOL_SHIFT;
+ wm8350_reg_write(wm8350, WM8350_LOUT1_VOLUME, 0);
+ wm8350_reg_write(wm8350, WM8350_ROUT1_VOLUME, 0);
+ wm8350_reg_write(wm8350, WM8350_LOUT2_VOLUME, 0);
+ wm8350_reg_write(wm8350, WM8350_ROUT2_VOLUME, 0);
+
+ /* Latch VU bits & mute */
+ wm8350_set_bits(wm8350, WM8350_LOUT1_VOLUME,
+ WM8350_OUT1_VU | WM8350_OUT1L_MUTE);
+ wm8350_set_bits(wm8350, WM8350_LOUT2_VOLUME,
+ WM8350_OUT2_VU | WM8350_OUT2L_MUTE);
+ wm8350_set_bits(wm8350, WM8350_ROUT1_VOLUME,
+ WM8350_OUT1_VU | WM8350_OUT1R_MUTE);
+ wm8350_set_bits(wm8350, WM8350_ROUT2_VOLUME,
+ WM8350_OUT2_VU | WM8350_OUT2R_MUTE);
+
+ ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to create pcms\n");
+ return ret;
+ }
+
+ wm8350_add_controls(codec);
+ wm8350_add_widgets(codec);
+
+ wm8350_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+
+ ret = snd_soc_init_card(socdev);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to register card\n");
+ goto card_err;
+ }
+
+ return 0;
+
+card_err:
+ snd_soc_free_pcms(socdev);
+ snd_soc_dapm_free(socdev);
+ return ret;
+}
+
+static int wm8350_remove(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec = socdev->codec;
+ struct wm8350 *wm8350 = codec->control_data;
+ int ret;
+
+ /* cancel any work waiting to be queued. */
+ ret = cancel_delayed_work(&codec->delayed_work);
+
+ /* if there was any work waiting then we run it now and
+ * wait for its completion */
+ if (ret) {
+ schedule_delayed_work(&codec->delayed_work, 0);
+ flush_scheduled_work();
+ }
+
+ wm8350_set_bias_level(codec, SND_SOC_BIAS_OFF);
+
+ wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_5, WM8350_CODEC_ENA);
+
+ return 0;
+}
+
+#define WM8350_RATES (SNDRV_PCM_RATE_8000_96000)
+
+#define WM8350_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
+ SNDRV_PCM_FMTBIT_S20_3LE |\
+ SNDRV_PCM_FMTBIT_S24_LE)
+
+struct snd_soc_dai wm8350_dai = {
+ .name = "WM8350",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = WM8350_RATES,
+ .formats = WM8350_FORMATS,
+ },
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = WM8350_RATES,
+ .formats = WM8350_FORMATS,
+ },
+ .ops = {
+ .hw_params = wm8350_pcm_hw_params,
+ .digital_mute = wm8350_mute,
+ .trigger = wm8350_pcm_trigger,
+ .set_fmt = wm8350_set_dai_fmt,
+ .set_sysclk = wm8350_set_dai_sysclk,
+ .set_pll = wm8350_set_fll,
+ .set_clkdiv = wm8350_set_clkdiv,
+ },
+};
+EXPORT_SYMBOL_GPL(wm8350_dai);
+
+struct snd_soc_codec_device soc_codec_dev_wm8350 = {
+ .probe = wm8350_probe,
+ .remove = wm8350_remove,
+ .suspend = wm8350_suspend,
+ .resume = wm8350_resume,
+};
+EXPORT_SYMBOL_GPL(soc_codec_dev_wm8350);
+
+static int wm8350_codec_probe(struct platform_device *pdev)
+{
+ struct wm8350 *wm8350 = platform_get_drvdata(pdev);
+ struct wm8350_data *priv;
+ struct snd_soc_codec *codec;
+ int ret, i;
+
+ if (wm8350->codec.platform_data == NULL) {
+ dev_err(&pdev->dev, "No audio platform data supplied\n");
+ return -EINVAL;
+ }
+
+ priv = kzalloc(sizeof(struct wm8350_data), GFP_KERNEL);
+ if (priv == NULL)
+ return -ENOMEM;
+
+ for (i = 0; i < ARRAY_SIZE(supply_names); i++)
+ priv->supplies[i].supply = supply_names[i];
+
+ ret = regulator_bulk_get(wm8350->dev, ARRAY_SIZE(priv->supplies),
+ priv->supplies);
+ if (ret != 0)
+ goto err_priv;
+
+ codec = &priv->codec;
+ wm8350->codec.codec = codec;
+
+ wm8350_dai.dev = &pdev->dev;
+
+ mutex_init(&codec->mutex);
+ INIT_LIST_HEAD(&codec->dapm_widgets);
+ INIT_LIST_HEAD(&codec->dapm_paths);
+ codec->dev = &pdev->dev;
+ codec->name = "WM8350";
+ codec->owner = THIS_MODULE;
+ codec->read = wm8350_codec_read;
+ codec->write = wm8350_codec_write;
+ codec->bias_level = SND_SOC_BIAS_OFF;
+ codec->set_bias_level = wm8350_set_bias_level;
+ codec->dai = &wm8350_dai;
+ codec->num_dai = 1;
+ codec->reg_cache_size = WM8350_MAX_REGISTER;
+ codec->private_data = priv;
+ codec->control_data = wm8350;
+
+ /* Put the codec into reset if it wasn't already */
+ wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_5, WM8350_CODEC_ENA);
+
+ INIT_DELAYED_WORK(&codec->delayed_work, wm8350_pga_work);
+ ret = snd_soc_register_codec(codec);
+ if (ret != 0)
+ goto err_supply;
+
+ wm8350_codec = codec;
+
+ ret = snd_soc_register_dai(&wm8350_dai);
+ if (ret != 0)
+ goto err_codec;
+ return 0;
+
+err_codec:
+ snd_soc_unregister_codec(codec);
+err_supply:
+ regulator_bulk_free(ARRAY_SIZE(priv->supplies), priv->supplies);
+err_priv:
+ kfree(priv);
+ wm8350_codec = NULL;
+ return ret;
+}
+
+static int wm8350_codec_remove(struct platform_device *pdev)
+{
+ struct wm8350 *wm8350 = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec = wm8350->codec.codec;
+ struct wm8350_data *priv = codec->private_data;
+
+ snd_soc_unregister_dai(&wm8350_dai);
+ snd_soc_unregister_codec(codec);
+ regulator_bulk_free(ARRAY_SIZE(priv->supplies), priv->supplies);
+ kfree(priv);
+ wm8350_codec = NULL;
+ return 0;
+}
+
+static struct platform_driver wm8350_codec_driver = {
+ .driver = {
+ .name = "wm8350-codec",
+ .owner = THIS_MODULE,
+ },
+ .probe = wm8350_codec_probe,
+ .remove = __devexit_p(wm8350_codec_remove),
+};
+
+static __init int wm8350_init(void)
+{
+ return platform_driver_register(&wm8350_codec_driver);
+}
+module_init(wm8350_init);
+
+static __exit void wm8350_exit(void)
+{
+ platform_driver_unregister(&wm8350_codec_driver);
+}
+module_exit(wm8350_exit);
+
+MODULE_DESCRIPTION("ASoC WM8350 driver");
+MODULE_AUTHOR("Liam Girdwood");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:wm8350-codec");
projects / linux-2.6-omap-h63xx.git / commitdiff