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-rw-r--r--sound/soc/codecs/wm8903.c2257
1 files changed, 2257 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
new file mode 100644
index 00000000..c91fb2f9
--- /dev/null
+++ b/sound/soc/codecs/wm8903.c
@@ -0,0 +1,2257 @@
+/*
+ * wm8903.c -- WM8903 ALSA SoC Audio driver
+ *
+ * Copyright 2008 Wolfson Microelectronics
+ * Copyright 2011 NVIDIA, Inc.
+ *
+ * Author: Mark Brown <broonie@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.
+ *
+ * TODO:
+ * - TDM mode configuration.
+ * - Digital microphone support.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/completion.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/pm.h>
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/irq.h>
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/tlv.h>
+#include <sound/soc.h>
+#include <sound/initval.h>
+#include <sound/wm8903.h>
+#include <trace/events/asoc.h>
+
+#include "wm8903.h"
+
+/* Register defaults at reset */
+static const struct reg_default wm8903_reg_defaults[] = {
+ { 4, 0x0018 }, /* R4 - Bias Control 0 */
+ { 5, 0x0000 }, /* R5 - VMID Control 0 */
+ { 6, 0x0000 }, /* R6 - Mic Bias Control 0 */
+ { 8, 0x0001 }, /* R8 - Analogue DAC 0 */
+ { 10, 0x0001 }, /* R10 - Analogue ADC 0 */
+ { 12, 0x0000 }, /* R12 - Power Management 0 */
+ { 13, 0x0000 }, /* R13 - Power Management 1 */
+ { 14, 0x0000 }, /* R14 - Power Management 2 */
+ { 15, 0x0000 }, /* R15 - Power Management 3 */
+ { 16, 0x0000 }, /* R16 - Power Management 4 */
+ { 17, 0x0000 }, /* R17 - Power Management 5 */
+ { 18, 0x0000 }, /* R18 - Power Management 6 */
+ { 20, 0x0400 }, /* R20 - Clock Rates 0 */
+ { 21, 0x0D07 }, /* R21 - Clock Rates 1 */
+ { 22, 0x0000 }, /* R22 - Clock Rates 2 */
+ { 24, 0x0050 }, /* R24 - Audio Interface 0 */
+ { 25, 0x0242 }, /* R25 - Audio Interface 1 */
+ { 26, 0x0008 }, /* R26 - Audio Interface 2 */
+ { 27, 0x0022 }, /* R27 - Audio Interface 3 */
+ { 30, 0x00C0 }, /* R30 - DAC Digital Volume Left */
+ { 31, 0x00C0 }, /* R31 - DAC Digital Volume Right */
+ { 32, 0x0000 }, /* R32 - DAC Digital 0 */
+ { 33, 0x0000 }, /* R33 - DAC Digital 1 */
+ { 36, 0x00C0 }, /* R36 - ADC Digital Volume Left */
+ { 37, 0x00C0 }, /* R37 - ADC Digital Volume Right */
+ { 38, 0x0000 }, /* R38 - ADC Digital 0 */
+ { 39, 0x0073 }, /* R39 - Digital Microphone 0 */
+ { 40, 0x09BF }, /* R40 - DRC 0 */
+ { 41, 0x3241 }, /* R41 - DRC 1 */
+ { 42, 0x0020 }, /* R42 - DRC 2 */
+ { 43, 0x0000 }, /* R43 - DRC 3 */
+ { 44, 0x0085 }, /* R44 - Analogue Left Input 0 */
+ { 45, 0x0085 }, /* R45 - Analogue Right Input 0 */
+ { 46, 0x0044 }, /* R46 - Analogue Left Input 1 */
+ { 47, 0x0044 }, /* R47 - Analogue Right Input 1 */
+ { 50, 0x0008 }, /* R50 - Analogue Left Mix 0 */
+ { 51, 0x0004 }, /* R51 - Analogue Right Mix 0 */
+ { 52, 0x0000 }, /* R52 - Analogue Spk Mix Left 0 */
+ { 53, 0x0000 }, /* R53 - Analogue Spk Mix Left 1 */
+ { 54, 0x0000 }, /* R54 - Analogue Spk Mix Right 0 */
+ { 55, 0x0000 }, /* R55 - Analogue Spk Mix Right 1 */
+ { 57, 0x002D }, /* R57 - Analogue OUT1 Left */
+ { 58, 0x002D }, /* R58 - Analogue OUT1 Right */
+ { 59, 0x0039 }, /* R59 - Analogue OUT2 Left */
+ { 60, 0x0039 }, /* R60 - Analogue OUT2 Right */
+ { 62, 0x0139 }, /* R62 - Analogue OUT3 Left */
+ { 63, 0x0139 }, /* R63 - Analogue OUT3 Right */
+ { 64, 0x0000 }, /* R65 - Analogue SPK Output Control 0 */
+ { 67, 0x0010 }, /* R67 - DC Servo 0 */
+ { 69, 0x00A4 }, /* R69 - DC Servo 2 */
+ { 90, 0x0000 }, /* R90 - Analogue HP 0 */
+ { 94, 0x0000 }, /* R94 - Analogue Lineout 0 */
+ { 98, 0x0000 }, /* R98 - Charge Pump 0 */
+ { 104, 0x0000 }, /* R104 - Class W 0 */
+ { 108, 0x0000 }, /* R108 - Write Sequencer 0 */
+ { 109, 0x0000 }, /* R109 - Write Sequencer 1 */
+ { 110, 0x0000 }, /* R110 - Write Sequencer 2 */
+ { 111, 0x0000 }, /* R111 - Write Sequencer 3 */
+ { 112, 0x0000 }, /* R112 - Write Sequencer 4 */
+ { 114, 0x0000 }, /* R114 - Control Interface */
+ { 116, 0x00A8 }, /* R116 - GPIO Control 1 */
+ { 117, 0x00A8 }, /* R117 - GPIO Control 2 */
+ { 118, 0x00A8 }, /* R118 - GPIO Control 3 */
+ { 119, 0x0220 }, /* R119 - GPIO Control 4 */
+ { 120, 0x01A0 }, /* R120 - GPIO Control 5 */
+ { 122, 0xFFFF }, /* R122 - Interrupt Status 1 Mask */
+ { 123, 0x0000 }, /* R123 - Interrupt Polarity 1 */
+ { 126, 0x0000 }, /* R126 - Interrupt Control */
+ { 129, 0x0000 }, /* R129 - Control Interface Test 1 */
+ { 149, 0x6810 }, /* R149 - Charge Pump Test 1 */
+ { 164, 0x0028 }, /* R164 - Clock Rate Test 4 */
+ { 172, 0x0000 }, /* R172 - Analogue Output Bias 0 */
+};
+
+struct wm8903_priv {
+ struct wm8903_platform_data *pdata;
+ struct snd_soc_codec *codec;
+ struct regmap *regmap;
+
+ int sysclk;
+ int irq;
+
+ int fs;
+ int deemph;
+
+ int dcs_pending;
+ int dcs_cache[4];
+
+ /* Reference count */
+ int class_w_users;
+
+ struct snd_soc_jack *mic_jack;
+ int mic_det;
+ int mic_short;
+ int mic_last_report;
+ int mic_delay;
+
+#ifdef CONFIG_GPIOLIB
+ struct gpio_chip gpio_chip;
+#endif
+};
+
+static bool wm8903_readable_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case WM8903_SW_RESET_AND_ID:
+ case WM8903_REVISION_NUMBER:
+ case WM8903_BIAS_CONTROL_0:
+ case WM8903_VMID_CONTROL_0:
+ case WM8903_MIC_BIAS_CONTROL_0:
+ case WM8903_ANALOGUE_DAC_0:
+ case WM8903_ANALOGUE_ADC_0:
+ case WM8903_POWER_MANAGEMENT_0:
+ case WM8903_POWER_MANAGEMENT_1:
+ case WM8903_POWER_MANAGEMENT_2:
+ case WM8903_POWER_MANAGEMENT_3:
+ case WM8903_POWER_MANAGEMENT_4:
+ case WM8903_POWER_MANAGEMENT_5:
+ case WM8903_POWER_MANAGEMENT_6:
+ case WM8903_CLOCK_RATES_0:
+ case WM8903_CLOCK_RATES_1:
+ case WM8903_CLOCK_RATES_2:
+ case WM8903_AUDIO_INTERFACE_0:
+ case WM8903_AUDIO_INTERFACE_1:
+ case WM8903_AUDIO_INTERFACE_2:
+ case WM8903_AUDIO_INTERFACE_3:
+ case WM8903_DAC_DIGITAL_VOLUME_LEFT:
+ case WM8903_DAC_DIGITAL_VOLUME_RIGHT:
+ case WM8903_DAC_DIGITAL_0:
+ case WM8903_DAC_DIGITAL_1:
+ case WM8903_ADC_DIGITAL_VOLUME_LEFT:
+ case WM8903_ADC_DIGITAL_VOLUME_RIGHT:
+ case WM8903_ADC_DIGITAL_0:
+ case WM8903_DIGITAL_MICROPHONE_0:
+ case WM8903_DRC_0:
+ case WM8903_DRC_1:
+ case WM8903_DRC_2:
+ case WM8903_DRC_3:
+ case WM8903_ANALOGUE_LEFT_INPUT_0:
+ case WM8903_ANALOGUE_RIGHT_INPUT_0:
+ case WM8903_ANALOGUE_LEFT_INPUT_1:
+ case WM8903_ANALOGUE_RIGHT_INPUT_1:
+ case WM8903_ANALOGUE_LEFT_MIX_0:
+ case WM8903_ANALOGUE_RIGHT_MIX_0:
+ case WM8903_ANALOGUE_SPK_MIX_LEFT_0:
+ case WM8903_ANALOGUE_SPK_MIX_LEFT_1:
+ case WM8903_ANALOGUE_SPK_MIX_RIGHT_0:
+ case WM8903_ANALOGUE_SPK_MIX_RIGHT_1:
+ case WM8903_ANALOGUE_OUT1_LEFT:
+ case WM8903_ANALOGUE_OUT1_RIGHT:
+ case WM8903_ANALOGUE_OUT2_LEFT:
+ case WM8903_ANALOGUE_OUT2_RIGHT:
+ case WM8903_ANALOGUE_OUT3_LEFT:
+ case WM8903_ANALOGUE_OUT3_RIGHT:
+ case WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0:
+ case WM8903_DC_SERVO_0:
+ case WM8903_DC_SERVO_2:
+ case WM8903_DC_SERVO_READBACK_1:
+ case WM8903_DC_SERVO_READBACK_2:
+ case WM8903_DC_SERVO_READBACK_3:
+ case WM8903_DC_SERVO_READBACK_4:
+ case WM8903_ANALOGUE_HP_0:
+ case WM8903_ANALOGUE_LINEOUT_0:
+ case WM8903_CHARGE_PUMP_0:
+ case WM8903_CLASS_W_0:
+ case WM8903_WRITE_SEQUENCER_0:
+ case WM8903_WRITE_SEQUENCER_1:
+ case WM8903_WRITE_SEQUENCER_2:
+ case WM8903_WRITE_SEQUENCER_3:
+ case WM8903_WRITE_SEQUENCER_4:
+ case WM8903_CONTROL_INTERFACE:
+ case WM8903_GPIO_CONTROL_1:
+ case WM8903_GPIO_CONTROL_2:
+ case WM8903_GPIO_CONTROL_3:
+ case WM8903_GPIO_CONTROL_4:
+ case WM8903_GPIO_CONTROL_5:
+ case WM8903_INTERRUPT_STATUS_1:
+ case WM8903_INTERRUPT_STATUS_1_MASK:
+ case WM8903_INTERRUPT_POLARITY_1:
+ case WM8903_INTERRUPT_CONTROL:
+ case WM8903_CLOCK_RATE_TEST_4:
+ case WM8903_ANALOGUE_OUTPUT_BIAS_0:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool wm8903_volatile_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case WM8903_SW_RESET_AND_ID:
+ case WM8903_REVISION_NUMBER:
+ case WM8903_INTERRUPT_STATUS_1:
+ case WM8903_WRITE_SEQUENCER_4:
+ case WM8903_DC_SERVO_READBACK_1:
+ case WM8903_DC_SERVO_READBACK_2:
+ case WM8903_DC_SERVO_READBACK_3:
+ case WM8903_DC_SERVO_READBACK_4:
+ return 1;
+
+ default:
+ return 0;
+ }
+}
+
+static int wm8903_cp_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ WARN_ON(event != SND_SOC_DAPM_POST_PMU);
+ mdelay(4);
+
+ return 0;
+}
+
+static int wm8903_dcs_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_codec *codec = w->codec;
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+
+ switch (event) {
+ case SND_SOC_DAPM_POST_PMU:
+ wm8903->dcs_pending |= 1 << w->shift;
+ break;
+ case SND_SOC_DAPM_PRE_PMD:
+ snd_soc_update_bits(codec, WM8903_DC_SERVO_0,
+ 1 << w->shift, 0);
+ break;
+ }
+
+ return 0;
+}
+
+#define WM8903_DCS_MODE_WRITE_STOP 0
+#define WM8903_DCS_MODE_START_STOP 2
+
+static void wm8903_seq_notifier(struct snd_soc_dapm_context *dapm,
+ enum snd_soc_dapm_type event, int subseq)
+{
+ struct snd_soc_codec *codec = container_of(dapm,
+ struct snd_soc_codec, dapm);
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+ int dcs_mode = WM8903_DCS_MODE_WRITE_STOP;
+ int i, val;
+
+ /* Complete any pending DC servo starts */
+ if (wm8903->dcs_pending) {
+ dev_dbg(codec->dev, "Starting DC servo for %x\n",
+ wm8903->dcs_pending);
+
+ /* If we've no cached values then we need to do startup */
+ for (i = 0; i < ARRAY_SIZE(wm8903->dcs_cache); i++) {
+ if (!(wm8903->dcs_pending & (1 << i)))
+ continue;
+
+ if (wm8903->dcs_cache[i]) {
+ dev_dbg(codec->dev,
+ "Restore DC servo %d value %x\n",
+ 3 - i, wm8903->dcs_cache[i]);
+
+ snd_soc_write(codec, WM8903_DC_SERVO_4 + i,
+ wm8903->dcs_cache[i] & 0xff);
+ } else {
+ dev_dbg(codec->dev,
+ "Calibrate DC servo %d\n", 3 - i);
+ dcs_mode = WM8903_DCS_MODE_START_STOP;
+ }
+ }
+
+ /* Don't trust the cache for analogue */
+ if (wm8903->class_w_users)
+ dcs_mode = WM8903_DCS_MODE_START_STOP;
+
+ snd_soc_update_bits(codec, WM8903_DC_SERVO_2,
+ WM8903_DCS_MODE_MASK, dcs_mode);
+
+ snd_soc_update_bits(codec, WM8903_DC_SERVO_0,
+ WM8903_DCS_ENA_MASK, wm8903->dcs_pending);
+
+ switch (dcs_mode) {
+ case WM8903_DCS_MODE_WRITE_STOP:
+ break;
+
+ case WM8903_DCS_MODE_START_STOP:
+ msleep(270);
+
+ /* Cache the measured offsets for digital */
+ if (wm8903->class_w_users)
+ break;
+
+ for (i = 0; i < ARRAY_SIZE(wm8903->dcs_cache); i++) {
+ if (!(wm8903->dcs_pending & (1 << i)))
+ continue;
+
+ val = snd_soc_read(codec,
+ WM8903_DC_SERVO_READBACK_1 + i);
+ dev_dbg(codec->dev, "DC servo %d: %x\n",
+ 3 - i, val);
+ wm8903->dcs_cache[i] = val;
+ }
+ break;
+
+ default:
+ pr_warn("DCS mode %d delay not set\n", dcs_mode);
+ break;
+ }
+
+ wm8903->dcs_pending = 0;
+ }
+}
+
+/*
+ * When used with DAC outputs only the WM8903 charge pump supports
+ * operation in class W mode, providing very low power consumption
+ * when used with digital sources. Enable and disable this mode
+ * automatically depending on the mixer configuration.
+ *
+ * All the relevant controls are simple switches.
+ */
+static int wm8903_class_w_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
+ struct snd_soc_dapm_widget *widget = wlist->widgets[0];
+ struct snd_soc_codec *codec = widget->codec;
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+ u16 reg;
+ int ret;
+
+ reg = snd_soc_read(codec, WM8903_CLASS_W_0);
+
+ /* Turn it off if we're about to enable bypass */
+ if (ucontrol->value.integer.value[0]) {
+ if (wm8903->class_w_users == 0) {
+ dev_dbg(codec->dev, "Disabling Class W\n");
+ snd_soc_write(codec, WM8903_CLASS_W_0, reg &
+ ~(WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V));
+ }
+ wm8903->class_w_users++;
+ }
+
+ /* Implement the change */
+ ret = snd_soc_dapm_put_volsw(kcontrol, ucontrol);
+
+ /* If we've just disabled the last bypass path turn Class W on */
+ if (!ucontrol->value.integer.value[0]) {
+ if (wm8903->class_w_users == 1) {
+ dev_dbg(codec->dev, "Enabling Class W\n");
+ snd_soc_write(codec, WM8903_CLASS_W_0, reg |
+ WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V);
+ }
+ wm8903->class_w_users--;
+ }
+
+ dev_dbg(codec->dev, "Bypass use count now %d\n",
+ wm8903->class_w_users);
+
+ return ret;
+}
+
+#define SOC_DAPM_SINGLE_W(xname, reg, shift, max, invert) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
+ .info = snd_soc_info_volsw, \
+ .get = snd_soc_dapm_get_volsw, .put = wm8903_class_w_put, \
+ .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
+
+
+static int wm8903_deemph[] = { 0, 32000, 44100, 48000 };
+
+static int wm8903_set_deemph(struct snd_soc_codec *codec)
+{
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+ int val, i, best;
+
+ /* If we're using deemphasis select the nearest available sample
+ * rate.
+ */
+ if (wm8903->deemph) {
+ best = 1;
+ for (i = 2; i < ARRAY_SIZE(wm8903_deemph); i++) {
+ if (abs(wm8903_deemph[i] - wm8903->fs) <
+ abs(wm8903_deemph[best] - wm8903->fs))
+ best = i;
+ }
+
+ val = best << WM8903_DEEMPH_SHIFT;
+ } else {
+ best = 0;
+ val = 0;
+ }
+
+ dev_dbg(codec->dev, "Set deemphasis %d (%dHz)\n",
+ best, wm8903_deemph[best]);
+
+ return snd_soc_update_bits(codec, WM8903_DAC_DIGITAL_1,
+ WM8903_DEEMPH_MASK, val);
+}
+
+static int wm8903_get_deemph(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+
+ ucontrol->value.enumerated.item[0] = wm8903->deemph;
+
+ return 0;
+}
+
+static int wm8903_put_deemph(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+ int deemph = ucontrol->value.enumerated.item[0];
+ int ret = 0;
+
+ if (deemph > 1)
+ return -EINVAL;
+
+ mutex_lock(&codec->mutex);
+ if (wm8903->deemph != deemph) {
+ wm8903->deemph = deemph;
+
+ wm8903_set_deemph(codec);
+
+ ret = 1;
+ }
+ mutex_unlock(&codec->mutex);
+
+ return ret;
+}
+
+/* ALSA can only do steps of .01dB */
+static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
+
+static const DECLARE_TLV_DB_SCALE(digital_sidetone_tlv, -3600, 300, 0);
+static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
+
+static const DECLARE_TLV_DB_SCALE(drc_tlv_thresh, 0, 75, 0);
+static const DECLARE_TLV_DB_SCALE(drc_tlv_amp, -2250, 75, 0);
+static const DECLARE_TLV_DB_SCALE(drc_tlv_min, 0, 600, 0);
+static const DECLARE_TLV_DB_SCALE(drc_tlv_max, 1200, 600, 0);
+static const DECLARE_TLV_DB_SCALE(drc_tlv_startup, -300, 50, 0);
+
+static const char *hpf_mode_text[] = {
+ "Hi-fi", "Voice 1", "Voice 2", "Voice 3"
+};
+
+static const struct soc_enum hpf_mode =
+ SOC_ENUM_SINGLE(WM8903_ADC_DIGITAL_0, 5, 4, hpf_mode_text);
+
+static const char *osr_text[] = {
+ "Low power", "High performance"
+};
+
+static const struct soc_enum adc_osr =
+ SOC_ENUM_SINGLE(WM8903_ANALOGUE_ADC_0, 0, 2, osr_text);
+
+static const struct soc_enum dac_osr =
+ SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 0, 2, osr_text);
+
+static const char *drc_slope_text[] = {
+ "1", "1/2", "1/4", "1/8", "1/16", "0"
+};
+
+static const struct soc_enum drc_slope_r0 =
+ SOC_ENUM_SINGLE(WM8903_DRC_2, 3, 6, drc_slope_text);
+
+static const struct soc_enum drc_slope_r1 =
+ SOC_ENUM_SINGLE(WM8903_DRC_2, 0, 6, drc_slope_text);
+
+static const char *drc_attack_text[] = {
+ "instantaneous",
+ "363us", "762us", "1.45ms", "2.9ms", "5.8ms", "11.6ms", "23.2ms",
+ "46.4ms", "92.8ms", "185.6ms"
+};
+
+static const struct soc_enum drc_attack =
+ SOC_ENUM_SINGLE(WM8903_DRC_1, 12, 11, drc_attack_text);
+
+static const char *drc_decay_text[] = {
+ "186ms", "372ms", "743ms", "1.49s", "2.97s", "5.94s", "11.89s",
+ "23.87s", "47.56s"
+};
+
+static const struct soc_enum drc_decay =
+ SOC_ENUM_SINGLE(WM8903_DRC_1, 8, 9, drc_decay_text);
+
+static const char *drc_ff_delay_text[] = {
+ "5 samples", "9 samples"
+};
+
+static const struct soc_enum drc_ff_delay =
+ SOC_ENUM_SINGLE(WM8903_DRC_0, 5, 2, drc_ff_delay_text);
+
+static const char *drc_qr_decay_text[] = {
+ "0.725ms", "1.45ms", "5.8ms"
+};
+
+static const struct soc_enum drc_qr_decay =
+ SOC_ENUM_SINGLE(WM8903_DRC_1, 4, 3, drc_qr_decay_text);
+
+static const char *drc_smoothing_text[] = {
+ "Low", "Medium", "High"
+};
+
+static const struct soc_enum drc_smoothing =
+ SOC_ENUM_SINGLE(WM8903_DRC_0, 11, 3, drc_smoothing_text);
+
+static const char *soft_mute_text[] = {
+ "Fast (fs/2)", "Slow (fs/32)"
+};
+
+static const struct soc_enum soft_mute =
+ SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 10, 2, soft_mute_text);
+
+static const char *mute_mode_text[] = {
+ "Hard", "Soft"
+};
+
+static const struct soc_enum mute_mode =
+ SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 9, 2, mute_mode_text);
+
+static const char *companding_text[] = {
+ "ulaw", "alaw"
+};
+
+static const struct soc_enum dac_companding =
+ SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 0, 2, companding_text);
+
+static const struct soc_enum adc_companding =
+ SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 2, 2, companding_text);
+
+static const char *input_mode_text[] = {
+ "Single-Ended", "Differential Line", "Differential Mic"
+};
+
+static const struct soc_enum linput_mode_enum =
+ SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1, 0, 3, input_mode_text);
+
+static const struct soc_enum rinput_mode_enum =
+ SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 0, 3, input_mode_text);
+
+static const char *linput_mux_text[] = {
+ "IN1L", "IN2L", "IN3L"
+};
+
+static const struct soc_enum linput_enum =
+ SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1, 2, 3, linput_mux_text);
+
+static const struct soc_enum linput_inv_enum =
+ SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1, 4, 3, linput_mux_text);
+
+static const char *rinput_mux_text[] = {
+ "IN1R", "IN2R", "IN3R"
+};
+
+static const struct soc_enum rinput_enum =
+ SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 2, 3, rinput_mux_text);
+
+static const struct soc_enum rinput_inv_enum =
+ SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 4, 3, rinput_mux_text);
+
+
+static const char *sidetone_text[] = {
+ "None", "Left", "Right"
+};
+
+static const struct soc_enum lsidetone_enum =
+ SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_0, 2, 3, sidetone_text);
+
+static const struct soc_enum rsidetone_enum =
+ SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_0, 0, 3, sidetone_text);
+
+static const char *adcinput_text[] = {
+ "ADC", "DMIC"
+};
+
+static const struct soc_enum adcinput_enum =
+ SOC_ENUM_SINGLE(WM8903_CLOCK_RATE_TEST_4, 9, 2, adcinput_text);
+
+static const char *aif_text[] = {
+ "Left", "Right"
+};
+
+static const struct soc_enum lcapture_enum =
+ SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 7, 2, aif_text);
+
+static const struct soc_enum rcapture_enum =
+ SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 6, 2, aif_text);
+
+static const struct soc_enum lplay_enum =
+ SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 5, 2, aif_text);
+
+static const struct soc_enum rplay_enum =
+ SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 4, 2, aif_text);
+
+static const struct snd_kcontrol_new wm8903_snd_controls[] = {
+
+/* Input PGAs - No TLV since the scale depends on PGA mode */
+SOC_SINGLE("Left Input PGA Switch", WM8903_ANALOGUE_LEFT_INPUT_0,
+ 7, 1, 1),
+SOC_SINGLE("Left Input PGA Volume", WM8903_ANALOGUE_LEFT_INPUT_0,
+ 0, 31, 0),
+SOC_SINGLE("Left Input PGA Common Mode Switch", WM8903_ANALOGUE_LEFT_INPUT_1,
+ 6, 1, 0),
+
+SOC_SINGLE("Right Input PGA Switch", WM8903_ANALOGUE_RIGHT_INPUT_0,
+ 7, 1, 1),
+SOC_SINGLE("Right Input PGA Volume", WM8903_ANALOGUE_RIGHT_INPUT_0,
+ 0, 31, 0),
+SOC_SINGLE("Right Input PGA Common Mode Switch", WM8903_ANALOGUE_RIGHT_INPUT_1,
+ 6, 1, 0),
+
+/* ADCs */
+SOC_ENUM("ADC OSR", adc_osr),
+SOC_SINGLE("HPF Switch", WM8903_ADC_DIGITAL_0, 4, 1, 0),
+SOC_ENUM("HPF Mode", hpf_mode),
+SOC_SINGLE("DRC Switch", WM8903_DRC_0, 15, 1, 0),
+SOC_ENUM("DRC Compressor Slope R0", drc_slope_r0),
+SOC_ENUM("DRC Compressor Slope R1", drc_slope_r1),
+SOC_SINGLE_TLV("DRC Compressor Threshold Volume", WM8903_DRC_3, 5, 124, 1,
+ drc_tlv_thresh),
+SOC_SINGLE_TLV("DRC Volume", WM8903_DRC_3, 0, 30, 1, drc_tlv_amp),
+SOC_SINGLE_TLV("DRC Minimum Gain Volume", WM8903_DRC_1, 2, 3, 1, drc_tlv_min),
+SOC_SINGLE_TLV("DRC Maximum Gain Volume", WM8903_DRC_1, 0, 3, 0, drc_tlv_max),
+SOC_ENUM("DRC Attack Rate", drc_attack),
+SOC_ENUM("DRC Decay Rate", drc_decay),
+SOC_ENUM("DRC FF Delay", drc_ff_delay),
+SOC_SINGLE("DRC Anticlip Switch", WM8903_DRC_0, 1, 1, 0),
+SOC_SINGLE("DRC QR Switch", WM8903_DRC_0, 2, 1, 0),
+SOC_SINGLE_TLV("DRC QR Threshold Volume", WM8903_DRC_0, 6, 3, 0, drc_tlv_max),
+SOC_ENUM("DRC QR Decay Rate", drc_qr_decay),
+SOC_SINGLE("DRC Smoothing Switch", WM8903_DRC_0, 3, 1, 0),
+SOC_SINGLE("DRC Smoothing Hysteresis Switch", WM8903_DRC_0, 0, 1, 0),
+SOC_ENUM("DRC Smoothing Threshold", drc_smoothing),
+SOC_SINGLE_TLV("DRC Startup Volume", WM8903_DRC_0, 6, 18, 0, drc_tlv_startup),
+
+SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8903_ADC_DIGITAL_VOLUME_LEFT,
+ WM8903_ADC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv),
+SOC_ENUM("ADC Companding Mode", adc_companding),
+SOC_SINGLE("ADC Companding Switch", WM8903_AUDIO_INTERFACE_0, 3, 1, 0),
+
+SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8903_DAC_DIGITAL_0, 4, 8,
+ 12, 0, digital_sidetone_tlv),
+
+/* DAC */
+SOC_ENUM("DAC OSR", dac_osr),
+SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8903_DAC_DIGITAL_VOLUME_LEFT,
+ WM8903_DAC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv),
+SOC_ENUM("DAC Soft Mute Rate", soft_mute),
+SOC_ENUM("DAC Mute Mode", mute_mode),
+SOC_SINGLE("DAC Mono Switch", WM8903_DAC_DIGITAL_1, 12, 1, 0),
+SOC_ENUM("DAC Companding Mode", dac_companding),
+SOC_SINGLE("DAC Companding Switch", WM8903_AUDIO_INTERFACE_0, 1, 1, 0),
+SOC_SINGLE_BOOL_EXT("Playback Deemphasis Switch", 0,
+ wm8903_get_deemph, wm8903_put_deemph),
+
+/* Headphones */
+SOC_DOUBLE_R("Headphone Switch",
+ WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
+ 8, 1, 1),
+SOC_DOUBLE_R("Headphone ZC Switch",
+ WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
+ 6, 1, 0),
+SOC_DOUBLE_R_TLV("Headphone Volume",
+ WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
+ 0, 63, 0, out_tlv),
+
+/* Line out */
+SOC_DOUBLE_R("Line Out Switch",
+ WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
+ 8, 1, 1),
+SOC_DOUBLE_R("Line Out ZC Switch",
+ WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
+ 6, 1, 0),
+SOC_DOUBLE_R_TLV("Line Out Volume",
+ WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
+ 0, 63, 0, out_tlv),
+
+/* Speaker */
+SOC_DOUBLE_R("Speaker Switch",
+ WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT, 8, 1, 1),
+SOC_DOUBLE_R("Speaker ZC Switch",
+ WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT, 6, 1, 0),
+SOC_DOUBLE_R_TLV("Speaker Volume",
+ WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT,
+ 0, 63, 0, out_tlv),
+};
+
+static const struct snd_kcontrol_new linput_mode_mux =
+ SOC_DAPM_ENUM("Left Input Mode Mux", linput_mode_enum);
+
+static const struct snd_kcontrol_new rinput_mode_mux =
+ SOC_DAPM_ENUM("Right Input Mode Mux", rinput_mode_enum);
+
+static const struct snd_kcontrol_new linput_mux =
+ SOC_DAPM_ENUM("Left Input Mux", linput_enum);
+
+static const struct snd_kcontrol_new linput_inv_mux =
+ SOC_DAPM_ENUM("Left Inverting Input Mux", linput_inv_enum);
+
+static const struct snd_kcontrol_new rinput_mux =
+ SOC_DAPM_ENUM("Right Input Mux", rinput_enum);
+
+static const struct snd_kcontrol_new rinput_inv_mux =
+ SOC_DAPM_ENUM("Right Inverting Input Mux", rinput_inv_enum);
+
+static const struct snd_kcontrol_new lsidetone_mux =
+ SOC_DAPM_ENUM("DACL Sidetone Mux", lsidetone_enum);
+
+static const struct snd_kcontrol_new rsidetone_mux =
+ SOC_DAPM_ENUM("DACR Sidetone Mux", rsidetone_enum);
+
+static const struct snd_kcontrol_new adcinput_mux =
+ SOC_DAPM_ENUM("ADC Input", adcinput_enum);
+
+static const struct snd_kcontrol_new lcapture_mux =
+ SOC_DAPM_ENUM("Left Capture Mux", lcapture_enum);
+
+static const struct snd_kcontrol_new rcapture_mux =
+ SOC_DAPM_ENUM("Right Capture Mux", rcapture_enum);
+
+static const struct snd_kcontrol_new lplay_mux =
+ SOC_DAPM_ENUM("Left Playback Mux", lplay_enum);
+
+static const struct snd_kcontrol_new rplay_mux =
+ SOC_DAPM_ENUM("Right Playback Mux", rplay_enum);
+
+static const struct snd_kcontrol_new left_output_mixer[] = {
+SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_LEFT_MIX_0, 3, 1, 0),
+SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_LEFT_MIX_0, 2, 1, 0),
+SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0, 1, 1, 0),
+SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0, 0, 1, 0),
+};
+
+static const struct snd_kcontrol_new right_output_mixer[] = {
+SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 3, 1, 0),
+SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 2, 1, 0),
+SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 1, 1, 0),
+SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 0, 1, 0),
+};
+
+static const struct snd_kcontrol_new left_speaker_mixer[] = {
+SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 3, 1, 0),
+SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 2, 1, 0),
+SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 1, 1, 0),
+SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0,
+ 0, 1, 0),
+};
+
+static const struct snd_kcontrol_new right_speaker_mixer[] = {
+SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 3, 1, 0),
+SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 2, 1, 0),
+SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0,
+ 1, 1, 0),
+SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0,
+ 0, 1, 0),
+};
+
+static const struct snd_soc_dapm_widget wm8903_dapm_widgets[] = {
+SND_SOC_DAPM_INPUT("IN1L"),
+SND_SOC_DAPM_INPUT("IN1R"),
+SND_SOC_DAPM_INPUT("IN2L"),
+SND_SOC_DAPM_INPUT("IN2R"),
+SND_SOC_DAPM_INPUT("IN3L"),
+SND_SOC_DAPM_INPUT("IN3R"),
+SND_SOC_DAPM_INPUT("DMICDAT"),
+
+SND_SOC_DAPM_OUTPUT("HPOUTL"),
+SND_SOC_DAPM_OUTPUT("HPOUTR"),
+SND_SOC_DAPM_OUTPUT("LINEOUTL"),
+SND_SOC_DAPM_OUTPUT("LINEOUTR"),
+SND_SOC_DAPM_OUTPUT("LOP"),
+SND_SOC_DAPM_OUTPUT("LON"),
+SND_SOC_DAPM_OUTPUT("ROP"),
+SND_SOC_DAPM_OUTPUT("RON"),
+
+SND_SOC_DAPM_SUPPLY("MICBIAS", WM8903_MIC_BIAS_CONTROL_0, 0, 0, NULL, 0),
+
+SND_SOC_DAPM_MUX("Left Input Mux", SND_SOC_NOPM, 0, 0, &linput_mux),
+SND_SOC_DAPM_MUX("Left Input Inverting Mux", SND_SOC_NOPM, 0, 0,
+ &linput_inv_mux),
+SND_SOC_DAPM_MUX("Left Input Mode Mux", SND_SOC_NOPM, 0, 0, &linput_mode_mux),
+
+SND_SOC_DAPM_MUX("Right Input Mux", SND_SOC_NOPM, 0, 0, &rinput_mux),
+SND_SOC_DAPM_MUX("Right Input Inverting Mux", SND_SOC_NOPM, 0, 0,
+ &rinput_inv_mux),
+SND_SOC_DAPM_MUX("Right Input Mode Mux", SND_SOC_NOPM, 0, 0, &rinput_mode_mux),
+
+SND_SOC_DAPM_PGA("Left Input PGA", WM8903_POWER_MANAGEMENT_0, 1, 0, NULL, 0),
+SND_SOC_DAPM_PGA("Right Input PGA", WM8903_POWER_MANAGEMENT_0, 0, 0, NULL, 0),
+
+SND_SOC_DAPM_MUX("Left ADC Input", SND_SOC_NOPM, 0, 0, &adcinput_mux),
+SND_SOC_DAPM_MUX("Right ADC Input", SND_SOC_NOPM, 0, 0, &adcinput_mux),
+
+SND_SOC_DAPM_ADC("ADCL", NULL, WM8903_POWER_MANAGEMENT_6, 1, 0),
+SND_SOC_DAPM_ADC("ADCR", NULL, WM8903_POWER_MANAGEMENT_6, 0, 0),
+
+SND_SOC_DAPM_MUX("Left Capture Mux", SND_SOC_NOPM, 0, 0, &lcapture_mux),
+SND_SOC_DAPM_MUX("Right Capture Mux", SND_SOC_NOPM, 0, 0, &rcapture_mux),
+
+SND_SOC_DAPM_AIF_OUT("AIFTXL", "Left HiFi Capture", 0, SND_SOC_NOPM, 0, 0),
+SND_SOC_DAPM_AIF_OUT("AIFTXR", "Right HiFi Capture", 0, SND_SOC_NOPM, 0, 0),
+
+SND_SOC_DAPM_MUX("DACL Sidetone", SND_SOC_NOPM, 0, 0, &lsidetone_mux),
+SND_SOC_DAPM_MUX("DACR Sidetone", SND_SOC_NOPM, 0, 0, &rsidetone_mux),
+
+SND_SOC_DAPM_AIF_IN("AIFRXL", "Left Playback", 0, SND_SOC_NOPM, 0, 0),
+SND_SOC_DAPM_AIF_IN("AIFRXR", "Right Playback", 0, SND_SOC_NOPM, 0, 0),
+
+SND_SOC_DAPM_MUX("Left Playback Mux", SND_SOC_NOPM, 0, 0, &lplay_mux),
+SND_SOC_DAPM_MUX("Right Playback Mux", SND_SOC_NOPM, 0, 0, &rplay_mux),
+
+SND_SOC_DAPM_DAC("DACL", NULL, WM8903_POWER_MANAGEMENT_6, 3, 0),
+SND_SOC_DAPM_DAC("DACR", NULL, WM8903_POWER_MANAGEMENT_6, 2, 0),
+
+SND_SOC_DAPM_MIXER("Left Output Mixer", WM8903_POWER_MANAGEMENT_1, 1, 0,
+ left_output_mixer, ARRAY_SIZE(left_output_mixer)),
+SND_SOC_DAPM_MIXER("Right Output Mixer", WM8903_POWER_MANAGEMENT_1, 0, 0,
+ right_output_mixer, ARRAY_SIZE(right_output_mixer)),
+
+SND_SOC_DAPM_MIXER("Left Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 1, 0,
+ left_speaker_mixer, ARRAY_SIZE(left_speaker_mixer)),
+SND_SOC_DAPM_MIXER("Right Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 0, 0,
+ right_speaker_mixer, ARRAY_SIZE(right_speaker_mixer)),
+
+SND_SOC_DAPM_PGA_S("Left Headphone Output PGA", 0, WM8903_POWER_MANAGEMENT_2,
+ 1, 0, NULL, 0),
+SND_SOC_DAPM_PGA_S("Right Headphone Output PGA", 0, WM8903_POWER_MANAGEMENT_2,
+ 0, 0, NULL, 0),
+
+SND_SOC_DAPM_PGA_S("Left Line Output PGA", 0, WM8903_POWER_MANAGEMENT_3, 1, 0,
+ NULL, 0),
+SND_SOC_DAPM_PGA_S("Right Line Output PGA", 0, WM8903_POWER_MANAGEMENT_3, 0, 0,
+ NULL, 0),
+
+SND_SOC_DAPM_PGA_S("HPL_RMV_SHORT", 4, WM8903_ANALOGUE_HP_0, 7, 0, NULL, 0),
+SND_SOC_DAPM_PGA_S("HPL_ENA_OUTP", 3, WM8903_ANALOGUE_HP_0, 6, 0, NULL, 0),
+SND_SOC_DAPM_PGA_S("HPL_ENA_DLY", 2, WM8903_ANALOGUE_HP_0, 5, 0, NULL, 0),
+SND_SOC_DAPM_PGA_S("HPL_ENA", 1, WM8903_ANALOGUE_HP_0, 4, 0, NULL, 0),
+SND_SOC_DAPM_PGA_S("HPR_RMV_SHORT", 4, WM8903_ANALOGUE_HP_0, 3, 0, NULL, 0),
+SND_SOC_DAPM_PGA_S("HPR_ENA_OUTP", 3, WM8903_ANALOGUE_HP_0, 2, 0, NULL, 0),
+SND_SOC_DAPM_PGA_S("HPR_ENA_DLY", 2, WM8903_ANALOGUE_HP_0, 1, 0, NULL, 0),
+SND_SOC_DAPM_PGA_S("HPR_ENA", 1, WM8903_ANALOGUE_HP_0, 0, 0, NULL, 0),
+
+SND_SOC_DAPM_PGA_S("LINEOUTL_RMV_SHORT", 4, WM8903_ANALOGUE_LINEOUT_0, 7, 0,
+ NULL, 0),
+SND_SOC_DAPM_PGA_S("LINEOUTL_ENA_OUTP", 3, WM8903_ANALOGUE_LINEOUT_0, 6, 0,
+ NULL, 0),
+SND_SOC_DAPM_PGA_S("LINEOUTL_ENA_DLY", 2, WM8903_ANALOGUE_LINEOUT_0, 5, 0,
+ NULL, 0),
+SND_SOC_DAPM_PGA_S("LINEOUTL_ENA", 1, WM8903_ANALOGUE_LINEOUT_0, 4, 0,
+ NULL, 0),
+SND_SOC_DAPM_PGA_S("LINEOUTR_RMV_SHORT", 4, WM8903_ANALOGUE_LINEOUT_0, 3, 0,
+ NULL, 0),
+SND_SOC_DAPM_PGA_S("LINEOUTR_ENA_OUTP", 3, WM8903_ANALOGUE_LINEOUT_0, 2, 0,
+ NULL, 0),
+SND_SOC_DAPM_PGA_S("LINEOUTR_ENA_DLY", 2, WM8903_ANALOGUE_LINEOUT_0, 1, 0,
+ NULL, 0),
+SND_SOC_DAPM_PGA_S("LINEOUTR_ENA", 1, WM8903_ANALOGUE_LINEOUT_0, 0, 0,
+ NULL, 0),
+
+SND_SOC_DAPM_SUPPLY("DCS Master", WM8903_DC_SERVO_0, 4, 0, NULL, 0),
+SND_SOC_DAPM_PGA_S("HPL_DCS", 3, SND_SOC_NOPM, 3, 0, wm8903_dcs_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+SND_SOC_DAPM_PGA_S("HPR_DCS", 3, SND_SOC_NOPM, 2, 0, wm8903_dcs_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+SND_SOC_DAPM_PGA_S("LINEOUTL_DCS", 3, SND_SOC_NOPM, 1, 0, wm8903_dcs_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+SND_SOC_DAPM_PGA_S("LINEOUTR_DCS", 3, SND_SOC_NOPM, 0, 0, wm8903_dcs_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+
+SND_SOC_DAPM_PGA("Left Speaker PGA", WM8903_POWER_MANAGEMENT_5, 1, 0,
+ NULL, 0),
+SND_SOC_DAPM_PGA("Right Speaker PGA", WM8903_POWER_MANAGEMENT_5, 0, 0,
+ NULL, 0),
+
+SND_SOC_DAPM_SUPPLY("Charge Pump", WM8903_CHARGE_PUMP_0, 0, 0,
+ wm8903_cp_event, SND_SOC_DAPM_POST_PMU),
+SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8903_CLOCK_RATES_2, 1, 0, NULL, 0),
+SND_SOC_DAPM_SUPPLY("CLK_SYS", WM8903_CLOCK_RATES_2, 2, 0, NULL, 0),
+};
+
+static const struct snd_soc_dapm_route wm8903_intercon[] = {
+
+ { "CLK_DSP", NULL, "CLK_SYS" },
+ { "MICBIAS", NULL, "CLK_SYS" },
+ { "HPL_DCS", NULL, "CLK_SYS" },
+ { "HPR_DCS", NULL, "CLK_SYS" },
+ { "LINEOUTL_DCS", NULL, "CLK_SYS" },
+ { "LINEOUTR_DCS", NULL, "CLK_SYS" },
+
+ { "Left Input Mux", "IN1L", "IN1L" },
+ { "Left Input Mux", "IN2L", "IN2L" },
+ { "Left Input Mux", "IN3L", "IN3L" },
+
+ { "Left Input Inverting Mux", "IN1L", "IN1L" },
+ { "Left Input Inverting Mux", "IN2L", "IN2L" },
+ { "Left Input Inverting Mux", "IN3L", "IN3L" },
+
+ { "Right Input Mux", "IN1R", "IN1R" },
+ { "Right Input Mux", "IN2R", "IN2R" },
+ { "Right Input Mux", "IN3R", "IN3R" },
+
+ { "Right Input Inverting Mux", "IN1R", "IN1R" },
+ { "Right Input Inverting Mux", "IN2R", "IN2R" },
+ { "Right Input Inverting Mux", "IN3R", "IN3R" },
+
+ { "Left Input Mode Mux", "Single-Ended", "Left Input Inverting Mux" },
+ { "Left Input Mode Mux", "Differential Line",
+ "Left Input Mux" },
+ { "Left Input Mode Mux", "Differential Line",
+ "Left Input Inverting Mux" },
+ { "Left Input Mode Mux", "Differential Mic",
+ "Left Input Mux" },
+ { "Left Input Mode Mux", "Differential Mic",
+ "Left Input Inverting Mux" },
+
+ { "Right Input Mode Mux", "Single-Ended",
+ "Right Input Inverting Mux" },
+ { "Right Input Mode Mux", "Differential Line",
+ "Right Input Mux" },
+ { "Right Input Mode Mux", "Differential Line",
+ "Right Input Inverting Mux" },
+ { "Right Input Mode Mux", "Differential Mic",
+ "Right Input Mux" },
+ { "Right Input Mode Mux", "Differential Mic",
+ "Right Input Inverting Mux" },
+
+ { "Left Input PGA", NULL, "Left Input Mode Mux" },
+ { "Right Input PGA", NULL, "Right Input Mode Mux" },
+
+ { "Left ADC Input", "ADC", "Left Input PGA" },
+ { "Left ADC Input", "DMIC", "DMICDAT" },
+ { "Right ADC Input", "ADC", "Right Input PGA" },
+ { "Right ADC Input", "DMIC", "DMICDAT" },
+
+ { "Left Capture Mux", "Left", "ADCL" },
+ { "Left Capture Mux", "Right", "ADCR" },
+
+ { "Right Capture Mux", "Left", "ADCL" },
+ { "Right Capture Mux", "Right", "ADCR" },
+
+ { "AIFTXL", NULL, "Left Capture Mux" },
+ { "AIFTXR", NULL, "Right Capture Mux" },
+
+ { "ADCL", NULL, "Left ADC Input" },
+ { "ADCL", NULL, "CLK_DSP" },
+ { "ADCR", NULL, "Right ADC Input" },
+ { "ADCR", NULL, "CLK_DSP" },
+
+ { "Left Playback Mux", "Left", "AIFRXL" },
+ { "Left Playback Mux", "Right", "AIFRXR" },
+
+ { "Right Playback Mux", "Left", "AIFRXL" },
+ { "Right Playback Mux", "Right", "AIFRXR" },
+
+ { "DACL Sidetone", "Left", "ADCL" },
+ { "DACL Sidetone", "Right", "ADCR" },
+ { "DACR Sidetone", "Left", "ADCL" },
+ { "DACR Sidetone", "Right", "ADCR" },
+
+ { "DACL", NULL, "Left Playback Mux" },
+ { "DACL", NULL, "DACL Sidetone" },
+ { "DACL", NULL, "CLK_DSP" },
+
+ { "DACR", NULL, "Right Playback Mux" },
+ { "DACR", NULL, "DACR Sidetone" },
+ { "DACR", NULL, "CLK_DSP" },
+
+ { "Left Output Mixer", "Left Bypass Switch", "Left Input PGA" },
+ { "Left Output Mixer", "Right Bypass Switch", "Right Input PGA" },
+ { "Left Output Mixer", "DACL Switch", "DACL" },
+ { "Left Output Mixer", "DACR Switch", "DACR" },
+
+ { "Right Output Mixer", "Left Bypass Switch", "Left Input PGA" },
+ { "Right Output Mixer", "Right Bypass Switch", "Right Input PGA" },
+ { "Right Output Mixer", "DACL Switch", "DACL" },
+ { "Right Output Mixer", "DACR Switch", "DACR" },
+
+ { "Left Speaker Mixer", "Left Bypass Switch", "Left Input PGA" },
+ { "Left Speaker Mixer", "Right Bypass Switch", "Right Input PGA" },
+ { "Left Speaker Mixer", "DACL Switch", "DACL" },
+ { "Left Speaker Mixer", "DACR Switch", "DACR" },
+
+ { "Right Speaker Mixer", "Left Bypass Switch", "Left Input PGA" },
+ { "Right Speaker Mixer", "Right Bypass Switch", "Right Input PGA" },
+ { "Right Speaker Mixer", "DACL Switch", "DACL" },
+ { "Right Speaker Mixer", "DACR Switch", "DACR" },
+
+ { "Left Line Output PGA", NULL, "Left Output Mixer" },
+ { "Right Line Output PGA", NULL, "Right Output Mixer" },
+
+ { "Left Headphone Output PGA", NULL, "Left Output Mixer" },
+ { "Right Headphone Output PGA", NULL, "Right Output Mixer" },
+
+ { "Left Speaker PGA", NULL, "Left Speaker Mixer" },
+ { "Right Speaker PGA", NULL, "Right Speaker Mixer" },
+
+ { "HPL_ENA", NULL, "Left Headphone Output PGA" },
+ { "HPR_ENA", NULL, "Right Headphone Output PGA" },
+ { "HPL_ENA_DLY", NULL, "HPL_ENA" },
+ { "HPR_ENA_DLY", NULL, "HPR_ENA" },
+ { "LINEOUTL_ENA", NULL, "Left Line Output PGA" },
+ { "LINEOUTR_ENA", NULL, "Right Line Output PGA" },
+ { "LINEOUTL_ENA_DLY", NULL, "LINEOUTL_ENA" },
+ { "LINEOUTR_ENA_DLY", NULL, "LINEOUTR_ENA" },
+
+ { "HPL_DCS", NULL, "DCS Master" },
+ { "HPR_DCS", NULL, "DCS Master" },
+ { "LINEOUTL_DCS", NULL, "DCS Master" },
+ { "LINEOUTR_DCS", NULL, "DCS Master" },
+
+ { "HPL_DCS", NULL, "HPL_ENA_DLY" },
+ { "HPR_DCS", NULL, "HPR_ENA_DLY" },
+ { "LINEOUTL_DCS", NULL, "LINEOUTL_ENA_DLY" },
+ { "LINEOUTR_DCS", NULL, "LINEOUTR_ENA_DLY" },
+
+ { "HPL_ENA_OUTP", NULL, "HPL_DCS" },
+ { "HPR_ENA_OUTP", NULL, "HPR_DCS" },
+ { "LINEOUTL_ENA_OUTP", NULL, "LINEOUTL_DCS" },
+ { "LINEOUTR_ENA_OUTP", NULL, "LINEOUTR_DCS" },
+
+ { "HPL_RMV_SHORT", NULL, "HPL_ENA_OUTP" },
+ { "HPR_RMV_SHORT", NULL, "HPR_ENA_OUTP" },
+ { "LINEOUTL_RMV_SHORT", NULL, "LINEOUTL_ENA_OUTP" },
+ { "LINEOUTR_RMV_SHORT", NULL, "LINEOUTR_ENA_OUTP" },
+
+ { "HPOUTL", NULL, "HPL_RMV_SHORT" },
+ { "HPOUTR", NULL, "HPR_RMV_SHORT" },
+ { "LINEOUTL", NULL, "LINEOUTL_RMV_SHORT" },
+ { "LINEOUTR", NULL, "LINEOUTR_RMV_SHORT" },
+
+ { "LOP", NULL, "Left Speaker PGA" },
+ { "LON", NULL, "Left Speaker PGA" },
+
+ { "ROP", NULL, "Right Speaker PGA" },
+ { "RON", NULL, "Right Speaker PGA" },
+
+ { "Left Headphone Output PGA", NULL, "Charge Pump" },
+ { "Right Headphone Output PGA", NULL, "Charge Pump" },
+ { "Left Line Output PGA", NULL, "Charge Pump" },
+ { "Right Line Output PGA", NULL, "Charge Pump" },
+};
+
+static int wm8903_set_bias_level(struct snd_soc_codec *codec,
+ enum snd_soc_bias_level level)
+{
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ break;
+
+ case SND_SOC_BIAS_PREPARE:
+ snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
+ WM8903_VMID_RES_MASK,
+ WM8903_VMID_RES_50K);
+ break;
+
+ case SND_SOC_BIAS_STANDBY:
+ if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
+ snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0,
+ WM8903_POBCTRL | WM8903_ISEL_MASK |
+ WM8903_STARTUP_BIAS_ENA |
+ WM8903_BIAS_ENA,
+ WM8903_POBCTRL |
+ (2 << WM8903_ISEL_SHIFT) |
+ WM8903_STARTUP_BIAS_ENA);
+
+ snd_soc_update_bits(codec,
+ WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0,
+ WM8903_SPK_DISCHARGE,
+ WM8903_SPK_DISCHARGE);
+
+ msleep(33);
+
+ snd_soc_update_bits(codec, WM8903_POWER_MANAGEMENT_5,
+ WM8903_SPKL_ENA | WM8903_SPKR_ENA,
+ WM8903_SPKL_ENA | WM8903_SPKR_ENA);
+
+ snd_soc_update_bits(codec,
+ WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0,
+ WM8903_SPK_DISCHARGE, 0);
+
+ snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
+ WM8903_VMID_TIE_ENA |
+ WM8903_BUFIO_ENA |
+ WM8903_VMID_IO_ENA |
+ WM8903_VMID_SOFT_MASK |
+ WM8903_VMID_RES_MASK |
+ WM8903_VMID_BUF_ENA,
+ WM8903_VMID_TIE_ENA |
+ WM8903_BUFIO_ENA |
+ WM8903_VMID_IO_ENA |
+ (2 << WM8903_VMID_SOFT_SHIFT) |
+ WM8903_VMID_RES_250K |
+ WM8903_VMID_BUF_ENA);
+
+ msleep(129);
+
+ snd_soc_update_bits(codec, WM8903_POWER_MANAGEMENT_5,
+ WM8903_SPKL_ENA | WM8903_SPKR_ENA,
+ 0);
+
+ snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
+ WM8903_VMID_SOFT_MASK, 0);
+
+ snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
+ WM8903_VMID_RES_MASK,
+ WM8903_VMID_RES_50K);
+
+ snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0,
+ WM8903_BIAS_ENA | WM8903_POBCTRL,
+ WM8903_BIAS_ENA);
+
+ /* By default no bypass paths are enabled so
+ * enable Class W support.
+ */
+ dev_dbg(codec->dev, "Enabling Class W\n");
+ snd_soc_update_bits(codec, WM8903_CLASS_W_0,
+ WM8903_CP_DYN_FREQ |
+ WM8903_CP_DYN_V,
+ WM8903_CP_DYN_FREQ |
+ WM8903_CP_DYN_V);
+ }
+
+ snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
+ WM8903_VMID_RES_MASK,
+ WM8903_VMID_RES_250K);
+ break;
+
+ case SND_SOC_BIAS_OFF:
+ snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0,
+ WM8903_BIAS_ENA, 0);
+
+ snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
+ WM8903_VMID_SOFT_MASK,
+ 2 << WM8903_VMID_SOFT_SHIFT);
+
+ snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
+ WM8903_VMID_BUF_ENA, 0);
+
+ msleep(290);
+
+ snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
+ WM8903_VMID_TIE_ENA | WM8903_BUFIO_ENA |
+ WM8903_VMID_IO_ENA | WM8903_VMID_RES_MASK |
+ WM8903_VMID_SOFT_MASK |
+ WM8903_VMID_BUF_ENA, 0);
+
+ snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0,
+ WM8903_STARTUP_BIAS_ENA, 0);
+ break;
+ }
+
+ codec->dapm.bias_level = level;
+
+ return 0;
+}
+
+static int wm8903_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 wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+
+ wm8903->sysclk = freq;
+
+ return 0;
+}
+
+static int wm8903_set_dai_fmt(struct snd_soc_dai *codec_dai,
+ unsigned int fmt)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ u16 aif1 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_1);
+
+ aif1 &= ~(WM8903_LRCLK_DIR | WM8903_BCLK_DIR | WM8903_AIF_FMT_MASK |
+ WM8903_AIF_LRCLK_INV | WM8903_AIF_BCLK_INV);
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBS_CFS:
+ break;
+ case SND_SOC_DAIFMT_CBS_CFM:
+ aif1 |= WM8903_LRCLK_DIR;
+ break;
+ case SND_SOC_DAIFMT_CBM_CFM:
+ aif1 |= WM8903_LRCLK_DIR | WM8903_BCLK_DIR;
+ break;
+ case SND_SOC_DAIFMT_CBM_CFS:
+ aif1 |= WM8903_BCLK_DIR;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_DSP_A:
+ aif1 |= 0x3;
+ break;
+ case SND_SOC_DAIFMT_DSP_B:
+ aif1 |= 0x3 | WM8903_AIF_LRCLK_INV;
+ break;
+ case SND_SOC_DAIFMT_I2S:
+ aif1 |= 0x2;
+ break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ aif1 |= 0x1;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* Clock inversion */
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_DSP_A:
+ case SND_SOC_DAIFMT_DSP_B:
+ /* frame inversion not valid for DSP modes */
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ aif1 |= WM8903_AIF_BCLK_INV;
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ case SND_SOC_DAIFMT_I2S:
+ case SND_SOC_DAIFMT_RIGHT_J:
+ case SND_SOC_DAIFMT_LEFT_J:
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+ case SND_SOC_DAIFMT_IB_IF:
+ aif1 |= WM8903_AIF_BCLK_INV | WM8903_AIF_LRCLK_INV;
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ aif1 |= WM8903_AIF_BCLK_INV;
+ break;
+ case SND_SOC_DAIFMT_NB_IF:
+ aif1 |= WM8903_AIF_LRCLK_INV;
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ snd_soc_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
+
+ return 0;
+}
+
+static int wm8903_digital_mute(struct snd_soc_dai *codec_dai, int mute)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ u16 reg;
+
+ reg = snd_soc_read(codec, WM8903_DAC_DIGITAL_1);
+
+ if (mute)
+ reg |= WM8903_DAC_MUTE;
+ else
+ reg &= ~WM8903_DAC_MUTE;
+
+ snd_soc_write(codec, WM8903_DAC_DIGITAL_1, reg);
+
+ return 0;
+}
+
+/* Lookup table for CLK_SYS/fs ratio. 256fs or more is recommended
+ * for optimal performance so we list the lower rates first and match
+ * on the last match we find. */
+static struct {
+ int div;
+ int rate;
+ int mode;
+ int mclk_div;
+} clk_sys_ratios[] = {
+ { 64, 0x0, 0x0, 1 },
+ { 68, 0x0, 0x1, 1 },
+ { 125, 0x0, 0x2, 1 },
+ { 128, 0x1, 0x0, 1 },
+ { 136, 0x1, 0x1, 1 },
+ { 192, 0x2, 0x0, 1 },
+ { 204, 0x2, 0x1, 1 },
+
+ { 64, 0x0, 0x0, 2 },
+ { 68, 0x0, 0x1, 2 },
+ { 125, 0x0, 0x2, 2 },
+ { 128, 0x1, 0x0, 2 },
+ { 136, 0x1, 0x1, 2 },
+ { 192, 0x2, 0x0, 2 },
+ { 204, 0x2, 0x1, 2 },
+
+ { 250, 0x2, 0x2, 1 },
+ { 256, 0x3, 0x0, 1 },
+ { 272, 0x3, 0x1, 1 },
+ { 384, 0x4, 0x0, 1 },
+ { 408, 0x4, 0x1, 1 },
+ { 375, 0x4, 0x2, 1 },
+ { 512, 0x5, 0x0, 1 },
+ { 544, 0x5, 0x1, 1 },
+ { 500, 0x5, 0x2, 1 },
+ { 768, 0x6, 0x0, 1 },
+ { 816, 0x6, 0x1, 1 },
+ { 750, 0x6, 0x2, 1 },
+ { 1024, 0x7, 0x0, 1 },
+ { 1088, 0x7, 0x1, 1 },
+ { 1000, 0x7, 0x2, 1 },
+ { 1408, 0x8, 0x0, 1 },
+ { 1496, 0x8, 0x1, 1 },
+ { 1536, 0x9, 0x0, 1 },
+ { 1632, 0x9, 0x1, 1 },
+ { 1500, 0x9, 0x2, 1 },
+
+ { 250, 0x2, 0x2, 2 },
+ { 256, 0x3, 0x0, 2 },
+ { 272, 0x3, 0x1, 2 },
+ { 384, 0x4, 0x0, 2 },
+ { 408, 0x4, 0x1, 2 },
+ { 375, 0x4, 0x2, 2 },
+ { 512, 0x5, 0x0, 2 },
+ { 544, 0x5, 0x1, 2 },
+ { 500, 0x5, 0x2, 2 },
+ { 768, 0x6, 0x0, 2 },
+ { 816, 0x6, 0x1, 2 },
+ { 750, 0x6, 0x2, 2 },
+ { 1024, 0x7, 0x0, 2 },
+ { 1088, 0x7, 0x1, 2 },
+ { 1000, 0x7, 0x2, 2 },
+ { 1408, 0x8, 0x0, 2 },
+ { 1496, 0x8, 0x1, 2 },
+ { 1536, 0x9, 0x0, 2 },
+ { 1632, 0x9, 0x1, 2 },
+ { 1500, 0x9, 0x2, 2 },
+};
+
+/* CLK_SYS/BCLK ratios - multiplied by 10 due to .5s */
+static struct {
+ int ratio;
+ int div;
+} bclk_divs[] = {
+ { 10, 0 },
+ { 20, 2 },
+ { 30, 3 },
+ { 40, 4 },
+ { 50, 5 },
+ { 60, 7 },
+ { 80, 8 },
+ { 100, 9 },
+ { 120, 11 },
+ { 160, 12 },
+ { 200, 13 },
+ { 220, 14 },
+ { 240, 15 },
+ { 300, 17 },
+ { 320, 18 },
+ { 440, 19 },
+ { 480, 20 },
+};
+
+/* Sample rates for DSP */
+static struct {
+ int rate;
+ int value;
+} sample_rates[] = {
+ { 8000, 0 },
+ { 11025, 1 },
+ { 12000, 2 },
+ { 16000, 3 },
+ { 22050, 4 },
+ { 24000, 5 },
+ { 32000, 6 },
+ { 44100, 7 },
+ { 48000, 8 },
+ { 88200, 9 },
+ { 96000, 10 },
+ { 0, 0 },
+};
+
+static int wm8903_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_codec *codec =rtd->codec;
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+ int fs = params_rate(params);
+ int bclk;
+ int bclk_div;
+ int i;
+ int dsp_config;
+ int clk_config;
+ int best_val;
+ int cur_val;
+ int clk_sys;
+
+ u16 aif1 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_1);
+ u16 aif2 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_2);
+ u16 aif3 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_3);
+ u16 clock0 = snd_soc_read(codec, WM8903_CLOCK_RATES_0);
+ u16 clock1 = snd_soc_read(codec, WM8903_CLOCK_RATES_1);
+ u16 dac_digital1 = snd_soc_read(codec, WM8903_DAC_DIGITAL_1);
+
+ /* Enable sloping stopband filter for low sample rates */
+ if (fs <= 24000)
+ dac_digital1 |= WM8903_DAC_SB_FILT;
+ else
+ dac_digital1 &= ~WM8903_DAC_SB_FILT;
+
+ /* Configure sample rate logic for DSP - choose nearest rate */
+ dsp_config = 0;
+ best_val = abs(sample_rates[dsp_config].rate - fs);
+ for (i = 1; i < ARRAY_SIZE(sample_rates); i++) {
+ cur_val = abs(sample_rates[i].rate - fs);
+ if (cur_val <= best_val) {
+ dsp_config = i;
+ best_val = cur_val;
+ }
+ }
+
+ dev_dbg(codec->dev, "DSP fs = %dHz\n", sample_rates[dsp_config].rate);
+ clock1 &= ~WM8903_SAMPLE_RATE_MASK;
+ clock1 |= sample_rates[dsp_config].value;
+
+ aif1 &= ~WM8903_AIF_WL_MASK;
+ bclk = 2 * fs;
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ bclk *= 16;
+ break;
+ case SNDRV_PCM_FORMAT_S20_3LE:
+ bclk *= 20;
+ aif1 |= 0x4;
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ bclk *= 24;
+ aif1 |= 0x8;
+ break;
+ case SNDRV_PCM_FORMAT_S32_LE:
+ bclk *= 32;
+ aif1 |= 0xc;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ dev_dbg(codec->dev, "MCLK = %dHz, target sample rate = %dHz\n",
+ wm8903->sysclk, fs);
+
+ /* We may not have an MCLK which allows us to generate exactly
+ * the clock we want, particularly with USB derived inputs, so
+ * approximate.
+ */
+ clk_config = 0;
+ best_val = abs((wm8903->sysclk /
+ (clk_sys_ratios[0].mclk_div *
+ clk_sys_ratios[0].div)) - fs);
+ for (i = 1; i < ARRAY_SIZE(clk_sys_ratios); i++) {
+ cur_val = abs((wm8903->sysclk /
+ (clk_sys_ratios[i].mclk_div *
+ clk_sys_ratios[i].div)) - fs);
+
+ if (cur_val <= best_val) {
+ clk_config = i;
+ best_val = cur_val;
+ }
+ }
+
+ if (clk_sys_ratios[clk_config].mclk_div == 2) {
+ clock0 |= WM8903_MCLKDIV2;
+ clk_sys = wm8903->sysclk / 2;
+ } else {
+ clock0 &= ~WM8903_MCLKDIV2;
+ clk_sys = wm8903->sysclk;
+ }
+
+ clock1 &= ~(WM8903_CLK_SYS_RATE_MASK |
+ WM8903_CLK_SYS_MODE_MASK);
+ clock1 |= clk_sys_ratios[clk_config].rate << WM8903_CLK_SYS_RATE_SHIFT;
+ clock1 |= clk_sys_ratios[clk_config].mode << WM8903_CLK_SYS_MODE_SHIFT;
+
+ dev_dbg(codec->dev, "CLK_SYS_RATE=%x, CLK_SYS_MODE=%x div=%d\n",
+ clk_sys_ratios[clk_config].rate,
+ clk_sys_ratios[clk_config].mode,
+ clk_sys_ratios[clk_config].div);
+
+ dev_dbg(codec->dev, "Actual CLK_SYS = %dHz\n", clk_sys);
+
+ /* We may not get quite the right frequency if using
+ * approximate clocks so look for the closest match that is
+ * higher than the target (we need to ensure that there enough
+ * BCLKs to clock out the samples).
+ */
+ bclk_div = 0;
+ best_val = ((clk_sys * 10) / bclk_divs[0].ratio) - bclk;
+ i = 1;
+ while (i < ARRAY_SIZE(bclk_divs)) {
+ cur_val = ((clk_sys * 10) / bclk_divs[i].ratio) - bclk;
+ if (cur_val < 0) /* BCLK table is sorted */
+ break;
+ bclk_div = i;
+ best_val = cur_val;
+ i++;
+ }
+
+ aif2 &= ~WM8903_BCLK_DIV_MASK;
+ aif3 &= ~WM8903_LRCLK_RATE_MASK;
+
+ dev_dbg(codec->dev, "BCLK ratio %d for %dHz - actual BCLK = %dHz\n",
+ bclk_divs[bclk_div].ratio / 10, bclk,
+ (clk_sys * 10) / bclk_divs[bclk_div].ratio);
+
+ aif2 |= bclk_divs[bclk_div].div;
+ aif3 |= bclk / fs;
+
+ wm8903->fs = params_rate(params);
+ wm8903_set_deemph(codec);
+
+ snd_soc_write(codec, WM8903_CLOCK_RATES_0, clock0);
+ snd_soc_write(codec, WM8903_CLOCK_RATES_1, clock1);
+ snd_soc_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
+ snd_soc_write(codec, WM8903_AUDIO_INTERFACE_2, aif2);
+ snd_soc_write(codec, WM8903_AUDIO_INTERFACE_3, aif3);
+ snd_soc_write(codec, WM8903_DAC_DIGITAL_1, dac_digital1);
+
+ return 0;
+}
+
+/**
+ * wm8903_mic_detect - Enable microphone detection via the WM8903 IRQ
+ *
+ * @codec: WM8903 codec
+ * @jack: jack to report detection events on
+ * @det: value to report for presence detection
+ * @shrt: value to report for short detection
+ *
+ * Enable microphone detection via IRQ on the WM8903. If GPIOs are
+ * being used to bring out signals to the processor then only platform
+ * data configuration is needed for WM8903 and processor GPIOs should
+ * be configured using snd_soc_jack_add_gpios() instead.
+ *
+ * The current threasholds for detection should be configured using
+ * micdet_cfg in the platform data. Using this function will force on
+ * the microphone bias for the device.
+ */
+int wm8903_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack,
+ int det, int shrt)
+{
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+ int irq_mask = WM8903_MICDET_EINT | WM8903_MICSHRT_EINT;
+
+ dev_dbg(codec->dev, "Enabling microphone detection: %x %x\n",
+ det, shrt);
+
+ /* Store the configuration */
+ wm8903->mic_jack = jack;
+ wm8903->mic_det = det;
+ wm8903->mic_short = shrt;
+
+ /* Enable interrupts we've got a report configured for */
+ if (det)
+ irq_mask &= ~WM8903_MICDET_EINT;
+ if (shrt)
+ irq_mask &= ~WM8903_MICSHRT_EINT;
+
+ snd_soc_update_bits(codec, WM8903_INTERRUPT_STATUS_1_MASK,
+ WM8903_MICDET_EINT | WM8903_MICSHRT_EINT,
+ irq_mask);
+
+ if (det || shrt) {
+ /* Enable mic detection, this may not have been set through
+ * platform data (eg, if the defaults are OK). */
+ snd_soc_update_bits(codec, WM8903_WRITE_SEQUENCER_0,
+ WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
+ snd_soc_update_bits(codec, WM8903_MIC_BIAS_CONTROL_0,
+ WM8903_MICDET_ENA, WM8903_MICDET_ENA);
+ } else {
+ snd_soc_update_bits(codec, WM8903_MIC_BIAS_CONTROL_0,
+ WM8903_MICDET_ENA, 0);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(wm8903_mic_detect);
+
+static irqreturn_t wm8903_irq(int irq, void *data)
+{
+ struct snd_soc_codec *codec = data;
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+ int mic_report;
+ int int_pol;
+ int int_val = 0;
+ int mask = ~snd_soc_read(codec, WM8903_INTERRUPT_STATUS_1_MASK);
+
+ int_val = snd_soc_read(codec, WM8903_INTERRUPT_STATUS_1) & mask;
+
+ if (int_val & WM8903_WSEQ_BUSY_EINT) {
+ dev_warn(codec->dev, "Write sequencer done\n");
+ }
+
+ /*
+ * The rest is microphone jack detection. We need to manually
+ * invert the polarity of the interrupt after each event - to
+ * simplify the code keep track of the last state we reported
+ * and just invert the relevant bits in both the report and
+ * the polarity register.
+ */
+ mic_report = wm8903->mic_last_report;
+ int_pol = snd_soc_read(codec, WM8903_INTERRUPT_POLARITY_1);
+
+#ifndef CONFIG_SND_SOC_WM8903_MODULE
+ if (int_val & (WM8903_MICSHRT_EINT | WM8903_MICDET_EINT))
+ trace_snd_soc_jack_irq(dev_name(codec->dev));
+#endif
+
+ if (int_val & WM8903_MICSHRT_EINT) {
+ dev_dbg(codec->dev, "Microphone short (pol=%x)\n", int_pol);
+
+ mic_report ^= wm8903->mic_short;
+ int_pol ^= WM8903_MICSHRT_INV;
+ }
+
+ if (int_val & WM8903_MICDET_EINT) {
+ dev_dbg(codec->dev, "Microphone detect (pol=%x)\n", int_pol);
+
+ mic_report ^= wm8903->mic_det;
+ int_pol ^= WM8903_MICDET_INV;
+
+ msleep(wm8903->mic_delay);
+ }
+
+ snd_soc_update_bits(codec, WM8903_INTERRUPT_POLARITY_1,
+ WM8903_MICSHRT_INV | WM8903_MICDET_INV, int_pol);
+
+ snd_soc_jack_report(wm8903->mic_jack, mic_report,
+ wm8903->mic_short | wm8903->mic_det);
+
+ wm8903->mic_last_report = mic_report;
+
+ return IRQ_HANDLED;
+}
+
+#define WM8903_PLAYBACK_RATES (SNDRV_PCM_RATE_8000 |\
+ SNDRV_PCM_RATE_11025 | \
+ SNDRV_PCM_RATE_16000 | \
+ SNDRV_PCM_RATE_22050 | \
+ SNDRV_PCM_RATE_32000 | \
+ SNDRV_PCM_RATE_44100 | \
+ SNDRV_PCM_RATE_48000 | \
+ SNDRV_PCM_RATE_88200 | \
+ SNDRV_PCM_RATE_96000)
+
+#define WM8903_CAPTURE_RATES (SNDRV_PCM_RATE_8000 |\
+ SNDRV_PCM_RATE_11025 | \
+ SNDRV_PCM_RATE_16000 | \
+ SNDRV_PCM_RATE_22050 | \
+ SNDRV_PCM_RATE_32000 | \
+ SNDRV_PCM_RATE_44100 | \
+ SNDRV_PCM_RATE_48000)
+
+#define WM8903_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
+ SNDRV_PCM_FMTBIT_S20_3LE |\
+ SNDRV_PCM_FMTBIT_S24_LE)
+
+static const struct snd_soc_dai_ops wm8903_dai_ops = {
+ .hw_params = wm8903_hw_params,
+ .digital_mute = wm8903_digital_mute,
+ .set_fmt = wm8903_set_dai_fmt,
+ .set_sysclk = wm8903_set_dai_sysclk,
+};
+
+static struct snd_soc_dai_driver wm8903_dai = {
+ .name = "wm8903-hifi",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = WM8903_PLAYBACK_RATES,
+ .formats = WM8903_FORMATS,
+ },
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = WM8903_CAPTURE_RATES,
+ .formats = WM8903_FORMATS,
+ },
+ .ops = &wm8903_dai_ops,
+ .symmetric_rates = 1,
+};
+
+static int wm8903_suspend(struct snd_soc_codec *codec)
+{
+ wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
+
+ return 0;
+}
+
+static int wm8903_resume(struct snd_soc_codec *codec)
+{
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+
+ regcache_sync(wm8903->regmap);
+
+ wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+
+ return 0;
+}
+
+#ifdef CONFIG_GPIOLIB
+static inline struct wm8903_priv *gpio_to_wm8903(struct gpio_chip *chip)
+{
+ return container_of(chip, struct wm8903_priv, gpio_chip);
+}
+
+static int wm8903_gpio_request(struct gpio_chip *chip, unsigned offset)
+{
+ if (offset >= WM8903_NUM_GPIO)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int wm8903_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
+{
+ struct wm8903_priv *wm8903 = gpio_to_wm8903(chip);
+ struct snd_soc_codec *codec = wm8903->codec;
+ unsigned int mask, val;
+ int ret;
+
+ mask = WM8903_GP1_FN_MASK | WM8903_GP1_DIR_MASK;
+ val = (WM8903_GPn_FN_GPIO_INPUT << WM8903_GP1_FN_SHIFT) |
+ WM8903_GP1_DIR;
+
+ ret = snd_soc_update_bits(codec, WM8903_GPIO_CONTROL_1 + offset,
+ mask, val);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int wm8903_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+ struct wm8903_priv *wm8903 = gpio_to_wm8903(chip);
+ struct snd_soc_codec *codec = wm8903->codec;
+ int reg;
+
+ reg = snd_soc_read(codec, WM8903_GPIO_CONTROL_1 + offset);
+
+ return (reg & WM8903_GP1_LVL_MASK) >> WM8903_GP1_LVL_SHIFT;
+}
+
+static int wm8903_gpio_direction_out(struct gpio_chip *chip,
+ unsigned offset, int value)
+{
+ struct wm8903_priv *wm8903 = gpio_to_wm8903(chip);
+ struct snd_soc_codec *codec = wm8903->codec;
+ unsigned int mask, val;
+ int ret;
+
+ mask = WM8903_GP1_FN_MASK | WM8903_GP1_DIR_MASK | WM8903_GP1_LVL_MASK;
+ val = (WM8903_GPn_FN_GPIO_OUTPUT << WM8903_GP1_FN_SHIFT) |
+ (value << WM8903_GP2_LVL_SHIFT);
+
+ ret = snd_soc_update_bits(codec, WM8903_GPIO_CONTROL_1 + offset,
+ mask, val);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static void wm8903_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+ struct wm8903_priv *wm8903 = gpio_to_wm8903(chip);
+ struct snd_soc_codec *codec = wm8903->codec;
+
+ snd_soc_update_bits(codec, WM8903_GPIO_CONTROL_1 + offset,
+ WM8903_GP1_LVL_MASK,
+ !!value << WM8903_GP1_LVL_SHIFT);
+}
+
+static struct gpio_chip wm8903_template_chip = {
+ .label = "wm8903",
+ .owner = THIS_MODULE,
+ .request = wm8903_gpio_request,
+ .direction_input = wm8903_gpio_direction_in,
+ .get = wm8903_gpio_get,
+ .direction_output = wm8903_gpio_direction_out,
+ .set = wm8903_gpio_set,
+ .can_sleep = 1,
+};
+
+static void wm8903_init_gpio(struct snd_soc_codec *codec)
+{
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+ struct wm8903_platform_data *pdata = wm8903->pdata;
+ int ret;
+
+ wm8903->gpio_chip = wm8903_template_chip;
+ wm8903->gpio_chip.ngpio = WM8903_NUM_GPIO;
+ wm8903->gpio_chip.dev = codec->dev;
+
+ if (pdata->gpio_base)
+ wm8903->gpio_chip.base = pdata->gpio_base;
+ else
+ wm8903->gpio_chip.base = -1;
+
+ ret = gpiochip_add(&wm8903->gpio_chip);
+ if (ret != 0)
+ dev_err(codec->dev, "Failed to add GPIOs: %d\n", ret);
+}
+
+static void wm8903_free_gpio(struct snd_soc_codec *codec)
+{
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+ int ret;
+
+ ret = gpiochip_remove(&wm8903->gpio_chip);
+ if (ret != 0)
+ dev_err(codec->dev, "Failed to remove GPIOs: %d\n", ret);
+}
+#else
+static void wm8903_init_gpio(struct snd_soc_codec *codec)
+{
+}
+
+static void wm8903_free_gpio(struct snd_soc_codec *codec)
+{
+}
+#endif
+
+static int wm8903_probe(struct snd_soc_codec *codec)
+{
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+ struct wm8903_platform_data *pdata = wm8903->pdata;
+ int ret, i;
+ int trigger, irq_pol;
+ u16 val;
+ bool mic_gpio = false;
+
+ wm8903->codec = codec;
+ codec->control_data = wm8903->regmap;
+
+ ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_REGMAP);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
+ return ret;
+ }
+
+ /* Set up GPIOs, detect if any are MIC detect outputs */
+ for (i = 0; i < ARRAY_SIZE(pdata->gpio_cfg); i++) {
+ if ((!pdata->gpio_cfg[i]) ||
+ (pdata->gpio_cfg[i] > WM8903_GPIO_CONFIG_ZERO))
+ continue;
+
+ snd_soc_write(codec, WM8903_GPIO_CONTROL_1 + i,
+ pdata->gpio_cfg[i] & 0x7fff);
+
+ val = (pdata->gpio_cfg[i] & WM8903_GP1_FN_MASK)
+ >> WM8903_GP1_FN_SHIFT;
+
+ switch (val) {
+ case WM8903_GPn_FN_MICBIAS_CURRENT_DETECT:
+ case WM8903_GPn_FN_MICBIAS_SHORT_DETECT:
+ mic_gpio = true;
+ break;
+ default:
+ break;
+ }
+ }
+
+ /* Set up microphone detection */
+ snd_soc_write(codec, WM8903_MIC_BIAS_CONTROL_0,
+ pdata->micdet_cfg);
+
+ /* Microphone detection needs the WSEQ clock */
+ if (pdata->micdet_cfg)
+ snd_soc_update_bits(codec, WM8903_WRITE_SEQUENCER_0,
+ WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
+
+ /* If microphone detection is enabled by pdata but
+ * detected via IRQ then interrupts can be lost before
+ * the machine driver has set up microphone detection
+ * IRQs as the IRQs are clear on read. The detection
+ * will be enabled when the machine driver configures.
+ */
+ WARN_ON(!mic_gpio && (pdata->micdet_cfg & WM8903_MICDET_ENA));
+
+ wm8903->mic_delay = pdata->micdet_delay;
+
+ if (wm8903->irq) {
+ if (pdata->irq_active_low) {
+ trigger = IRQF_TRIGGER_LOW;
+ irq_pol = WM8903_IRQ_POL;
+ } else {
+ trigger = IRQF_TRIGGER_HIGH;
+ irq_pol = 0;
+ }
+
+ snd_soc_update_bits(codec, WM8903_INTERRUPT_CONTROL,
+ WM8903_IRQ_POL, irq_pol);
+
+ ret = request_threaded_irq(wm8903->irq, NULL, wm8903_irq,
+ trigger | IRQF_ONESHOT,
+ "wm8903", codec);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to request IRQ: %d\n",
+ ret);
+ return ret;
+ }
+
+ /* Enable write sequencer interrupts */
+ snd_soc_update_bits(codec, WM8903_INTERRUPT_STATUS_1_MASK,
+ WM8903_IM_WSEQ_BUSY_EINT, 0);
+ }
+
+ /* power on device */
+ wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+
+ /* Latch volume update bits */
+ val = snd_soc_read(codec, WM8903_ADC_DIGITAL_VOLUME_LEFT);
+ val |= WM8903_ADCVU;
+ snd_soc_write(codec, WM8903_ADC_DIGITAL_VOLUME_LEFT, val);
+ snd_soc_write(codec, WM8903_ADC_DIGITAL_VOLUME_RIGHT, val);
+
+ val = snd_soc_read(codec, WM8903_DAC_DIGITAL_VOLUME_LEFT);
+ val |= WM8903_DACVU;
+ snd_soc_write(codec, WM8903_DAC_DIGITAL_VOLUME_LEFT, val);
+ snd_soc_write(codec, WM8903_DAC_DIGITAL_VOLUME_RIGHT, val);
+
+ val = snd_soc_read(codec, WM8903_ANALOGUE_OUT1_LEFT);
+ val |= WM8903_HPOUTVU;
+ snd_soc_write(codec, WM8903_ANALOGUE_OUT1_LEFT, val);
+ snd_soc_write(codec, WM8903_ANALOGUE_OUT1_RIGHT, val);
+
+ val = snd_soc_read(codec, WM8903_ANALOGUE_OUT2_LEFT);
+ val |= WM8903_LINEOUTVU;
+ snd_soc_write(codec, WM8903_ANALOGUE_OUT2_LEFT, val);
+ snd_soc_write(codec, WM8903_ANALOGUE_OUT2_RIGHT, val);
+
+ val = snd_soc_read(codec, WM8903_ANALOGUE_OUT3_LEFT);
+ val |= WM8903_SPKVU;
+ snd_soc_write(codec, WM8903_ANALOGUE_OUT3_LEFT, val);
+ snd_soc_write(codec, WM8903_ANALOGUE_OUT3_RIGHT, val);
+
+ /* Enable DAC soft mute by default */
+ snd_soc_update_bits(codec, WM8903_DAC_DIGITAL_1,
+ WM8903_DAC_MUTEMODE | WM8903_DAC_MUTE,
+ WM8903_DAC_MUTEMODE | WM8903_DAC_MUTE);
+
+ wm8903_init_gpio(codec);
+
+ return ret;
+}
+
+/* power down chip */
+static int wm8903_remove(struct snd_soc_codec *codec)
+{
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+
+ wm8903_free_gpio(codec);
+ wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
+ if (wm8903->irq)
+ free_irq(wm8903->irq, codec);
+
+ return 0;
+}
+
+static struct snd_soc_codec_driver soc_codec_dev_wm8903 = {
+ .probe = wm8903_probe,
+ .remove = wm8903_remove,
+ .suspend = wm8903_suspend,
+ .resume = wm8903_resume,
+ .set_bias_level = wm8903_set_bias_level,
+ .seq_notifier = wm8903_seq_notifier,
+ .controls = wm8903_snd_controls,
+ .num_controls = ARRAY_SIZE(wm8903_snd_controls),
+ .dapm_widgets = wm8903_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(wm8903_dapm_widgets),
+ .dapm_routes = wm8903_intercon,
+ .num_dapm_routes = ARRAY_SIZE(wm8903_intercon),
+};
+
+static const struct regmap_config wm8903_regmap = {
+ .reg_bits = 8,
+ .val_bits = 16,
+
+ .max_register = WM8903_MAX_REGISTER,
+ .volatile_reg = wm8903_volatile_register,
+ .readable_reg = wm8903_readable_register,
+
+ .cache_type = REGCACHE_RBTREE,
+ .reg_defaults = wm8903_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(wm8903_reg_defaults),
+};
+
+static int wm8903_set_pdata_irq_trigger(struct i2c_client *i2c,
+ struct wm8903_platform_data *pdata)
+{
+ struct irq_data *irq_data = irq_get_irq_data(i2c->irq);
+ if (!irq_data) {
+ dev_err(&i2c->dev, "Invalid IRQ: %d\n",
+ i2c->irq);
+ return -EINVAL;
+ }
+
+ switch (irqd_get_trigger_type(irq_data)) {
+ case IRQ_TYPE_NONE:
+ default:
+ /*
+ * We assume the controller imposes no restrictions,
+ * so we are able to select active-high
+ */
+ /* Fall-through */
+ case IRQ_TYPE_LEVEL_HIGH:
+ pdata->irq_active_low = false;
+ break;
+ case IRQ_TYPE_LEVEL_LOW:
+ pdata->irq_active_low = true;
+ break;
+ }
+
+ return 0;
+}
+
+static int wm8903_set_pdata_from_of(struct i2c_client *i2c,
+ struct wm8903_platform_data *pdata)
+{
+ const struct device_node *np = i2c->dev.of_node;
+ u32 val32;
+ int i;
+
+ if (of_property_read_u32(np, "micdet-cfg", &val32) >= 0)
+ pdata->micdet_cfg = val32;
+
+ if (of_property_read_u32(np, "micdet-delay", &val32) >= 0)
+ pdata->micdet_delay = val32;
+
+ if (of_property_read_u32_array(np, "gpio-cfg", pdata->gpio_cfg,
+ ARRAY_SIZE(pdata->gpio_cfg)) >= 0) {
+ /*
+ * In device tree: 0 means "write 0",
+ * 0xffffffff means "don't touch".
+ *
+ * In platform data: 0 means "don't touch",
+ * 0x8000 means "write 0".
+ *
+ * Note: WM8903_GPIO_CONFIG_ZERO == 0x8000.
+ *
+ * Convert from DT to pdata representation here,
+ * so no other code needs to change.
+ */
+ for (i = 0; i < ARRAY_SIZE(pdata->gpio_cfg); i++) {
+ if (pdata->gpio_cfg[i] == 0) {
+ pdata->gpio_cfg[i] = WM8903_GPIO_CONFIG_ZERO;
+ } else if (pdata->gpio_cfg[i] == 0xffffffff) {
+ pdata->gpio_cfg[i] = 0;
+ } else if (pdata->gpio_cfg[i] > 0x7fff) {
+ dev_err(&i2c->dev, "Invalid gpio-cfg[%d] %x\n",
+ i, pdata->gpio_cfg[i]);
+ return -EINVAL;
+ }
+ }
+ }
+
+ return 0;
+}
+
+static __devinit int wm8903_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct wm8903_platform_data *pdata = dev_get_platdata(&i2c->dev);
+ struct wm8903_priv *wm8903;
+ unsigned int val;
+ int ret;
+
+ wm8903 = devm_kzalloc(&i2c->dev, sizeof(struct wm8903_priv),
+ GFP_KERNEL);
+ if (wm8903 == NULL)
+ return -ENOMEM;
+
+ wm8903->regmap = regmap_init_i2c(i2c, &wm8903_regmap);
+ if (IS_ERR(wm8903->regmap)) {
+ ret = PTR_ERR(wm8903->regmap);
+ dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
+ ret);
+ return ret;
+ }
+
+ i2c_set_clientdata(i2c, wm8903);
+ wm8903->irq = i2c->irq;
+
+ /* If no platform data was supplied, create storage for defaults */
+ if (pdata) {
+ wm8903->pdata = pdata;
+ } else {
+ wm8903->pdata = devm_kzalloc(&i2c->dev,
+ sizeof(struct wm8903_platform_data),
+ GFP_KERNEL);
+ if (wm8903->pdata == NULL) {
+ dev_err(&i2c->dev, "Failed to allocate pdata\n");
+ return -ENOMEM;
+ }
+
+ if (i2c->irq) {
+ ret = wm8903_set_pdata_irq_trigger(i2c, wm8903->pdata);
+ if (ret != 0)
+ return ret;
+ }
+
+ if (i2c->dev.of_node) {
+ ret = wm8903_set_pdata_from_of(i2c, wm8903->pdata);
+ if (ret != 0)
+ return ret;
+ }
+ }
+
+ ret = regmap_read(wm8903->regmap, WM8903_SW_RESET_AND_ID, &val);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to read chip ID: %d\n", ret);
+ goto err;
+ }
+ if (val != 0x8903) {
+ dev_err(&i2c->dev, "Device with ID %x is not a WM8903\n", val);
+ ret = -ENODEV;
+ goto err;
+ }
+
+ ret = regmap_read(wm8903->regmap, WM8903_REVISION_NUMBER, &val);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to read chip revision: %d\n", ret);
+ goto err;
+ }
+ dev_info(&i2c->dev, "WM8903 revision %c\n",
+ (val & WM8903_CHIP_REV_MASK) + 'A');
+
+ /* Reset the device */
+ regmap_write(wm8903->regmap, WM8903_SW_RESET_AND_ID, 0x8903);
+
+ ret = snd_soc_register_codec(&i2c->dev,
+ &soc_codec_dev_wm8903, &wm8903_dai, 1);
+ if (ret != 0)
+ goto err;
+
+ return 0;
+err:
+ regmap_exit(wm8903->regmap);
+ return ret;
+}
+
+static __devexit int wm8903_i2c_remove(struct i2c_client *client)
+{
+ struct wm8903_priv *wm8903 = i2c_get_clientdata(client);
+
+ regmap_exit(wm8903->regmap);
+ snd_soc_unregister_codec(&client->dev);
+
+ return 0;
+}
+
+static const struct of_device_id wm8903_of_match[] = {
+ { .compatible = "wlf,wm8903", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, wm8903_of_match);
+
+static const struct i2c_device_id wm8903_i2c_id[] = {
+ { "wm8903", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, wm8903_i2c_id);
+
+static struct i2c_driver wm8903_i2c_driver = {
+ .driver = {
+ .name = "wm8903",
+ .owner = THIS_MODULE,
+ .of_match_table = wm8903_of_match,
+ },
+ .probe = wm8903_i2c_probe,
+ .remove = __devexit_p(wm8903_i2c_remove),
+ .id_table = wm8903_i2c_id,
+};
+
+static int __init wm8903_modinit(void)
+{
+ int ret = 0;
+ ret = i2c_add_driver(&wm8903_i2c_driver);
+ if (ret != 0) {
+ printk(KERN_ERR "Failed to register wm8903 I2C driver: %d\n",
+ ret);
+ }
+ return ret;
+}
+module_init(wm8903_modinit);
+
+static void __exit wm8903_exit(void)
+{
+ i2c_del_driver(&wm8903_i2c_driver);
+}
+module_exit(wm8903_exit);
+
+MODULE_DESCRIPTION("ASoC WM8903 driver");
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.cm>");
+MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2024-12-20 08:52:46 +0000