summaryrefslogtreecommitdiff
path: root/sound/soc/codecs/max9867.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/codecs/max9867.c')
-rw-r--r--sound/soc/codecs/max9867.c814
1 files changed, 493 insertions, 321 deletions
diff --git a/sound/soc/codecs/max9867.c b/sound/soc/codecs/max9867.c
index 2a40a69a7513..9cad9b698cf2 100644
--- a/sound/soc/codecs/max9867.c
+++ b/sound/soc/codecs/max9867.c
@@ -1,13 +1,12 @@
-/*
- * max9867.c -- max9867 ALSA SoC Audio driver
- *
- * Copyright 2013-15 Maxim Integrated Products
- *
- * 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.
- */
-
+// SPDX-License-Identifier: GPL-2.0
+//
+// MAX9867 ALSA SoC codec driver
+//
+// Copyright 2013-2015 Maxim Integrated Products
+// Copyright 2018 Ladislav Michl <ladis@linux-mips.org>
+//
+
+#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/module.h>
@@ -17,287 +16,449 @@
#include <sound/tlv.h>
#include "max9867.h"
+struct max9867_priv {
+ struct clk *mclk;
+ struct regmap *regmap;
+ const struct snd_pcm_hw_constraint_list *constraints;
+ unsigned int sysclk, pclk;
+ bool provider, dsp_a;
+ unsigned int adc_dac_active;
+};
+
static const char *const max9867_spmode[] = {
"Stereo Diff", "Mono Diff",
"Stereo Cap", "Mono Cap",
"Stereo Single", "Mono Single",
"Stereo Single Fast", "Mono Single Fast"
};
-static const char *const max9867_sidetone_text[] = {
- "None", "Left", "Right", "LeftRight", "LeftRightDiv2",
-};
static const char *const max9867_filter_text[] = {"IIR", "FIR"};
-static SOC_ENUM_SINGLE_DECL(max9867_filter, MAX9867_CODECFLTR, 7,
- max9867_filter_text);
+static const char *const max9867_adc_dac_filter_text[] = {
+ "Disabled",
+ "Elliptical/16/256",
+ "Butterworth/16/500",
+ "Elliptical/8/256",
+ "Butterworth/8/500",
+ "Butterworth/8-24"
+};
+
+enum max9867_adc_dac {
+ MAX9867_ADC_LEFT,
+ MAX9867_ADC_RIGHT,
+ MAX9867_DAC_LEFT,
+ MAX9867_DAC_RIGHT,
+};
+
+static int max9867_adc_dac_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
+ struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);
+ enum max9867_adc_dac adc_dac;
+
+ if (!snd_soc_dapm_widget_name_cmp(w, "ADCL"))
+ adc_dac = MAX9867_ADC_LEFT;
+ else if (!snd_soc_dapm_widget_name_cmp(w, "ADCR"))
+ adc_dac = MAX9867_ADC_RIGHT;
+ else if (!snd_soc_dapm_widget_name_cmp(w, "DACL"))
+ adc_dac = MAX9867_DAC_LEFT;
+ else if (!snd_soc_dapm_widget_name_cmp(w, "DACR"))
+ adc_dac = MAX9867_DAC_RIGHT;
+ else
+ return 0;
+
+ if (SND_SOC_DAPM_EVENT_ON(event))
+ max9867->adc_dac_active |= BIT(adc_dac);
+ else if (SND_SOC_DAPM_EVENT_OFF(event))
+ max9867->adc_dac_active &= ~BIT(adc_dac);
+
+ return 0;
+}
+
+static int max9867_filter_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+ struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);
+ unsigned int reg;
+ int ret;
+
+ ret = regmap_read(max9867->regmap, MAX9867_CODECFLTR, &reg);
+ if (ret)
+ return -EINVAL;
+
+ if (reg & MAX9867_CODECFLTR_MODE)
+ ucontrol->value.enumerated.item[0] = 1;
+ else
+ ucontrol->value.enumerated.item[0] = 0;
+
+ return 0;
+}
+
+static int max9867_filter_set(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+ struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);
+ unsigned int reg, mode = ucontrol->value.enumerated.item[0];
+ int ret;
+
+ if (mode > 1)
+ return -EINVAL;
+
+ /* don't allow change if ADC/DAC active */
+ if (max9867->adc_dac_active)
+ return -EBUSY;
+
+ /* read current filter mode */
+ ret = regmap_read(max9867->regmap, MAX9867_CODECFLTR, &reg);
+ if (ret)
+ return -EINVAL;
+
+ if (mode)
+ mode = MAX9867_CODECFLTR_MODE;
+
+ /* check if change is needed */
+ if ((reg & MAX9867_CODECFLTR_MODE) == mode)
+ return 0;
+
+ /* shutdown codec before switching filter mode */
+ regmap_update_bits(max9867->regmap, MAX9867_PWRMAN,
+ MAX9867_PWRMAN_SHDN, 0);
+
+ /* switch filter mode */
+ regmap_update_bits(max9867->regmap, MAX9867_CODECFLTR,
+ MAX9867_CODECFLTR_MODE, mode);
+
+ /* out of shutdown now */
+ regmap_update_bits(max9867->regmap, MAX9867_PWRMAN,
+ MAX9867_PWRMAN_SHDN, MAX9867_PWRMAN_SHDN);
+
+ return 0;
+}
+
+static SOC_ENUM_SINGLE_EXT_DECL(max9867_filter, max9867_filter_text);
+static SOC_ENUM_SINGLE_DECL(max9867_dac_filter, MAX9867_CODECFLTR, 0,
+ max9867_adc_dac_filter_text);
+static SOC_ENUM_SINGLE_DECL(max9867_adc_filter, MAX9867_CODECFLTR, 4,
+ max9867_adc_dac_filter_text);
static SOC_ENUM_SINGLE_DECL(max9867_spkmode, MAX9867_MODECONFIG, 0,
max9867_spmode);
-static SOC_ENUM_SINGLE_DECL(max9867_sidetone, MAX9867_DACGAIN, 6,
- max9867_sidetone_text);
-static DECLARE_TLV_DB_SCALE(max9860_capture_tlv, -600, 200, 0);
-static DECLARE_TLV_DB_SCALE(max9860_mic_tlv, 2000, 100, 1);
-static DECLARE_TLV_DB_SCALE(max9860_adc_left_tlv, -1200, 100, 1);
-static DECLARE_TLV_DB_SCALE(max9860_adc_right_tlv, -1200, 100, 1);
-static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(max98088_micboost_tlv,
- 0, 1, TLV_DB_SCALE_ITEM(0, 2000, 0),
- 2, 2, TLV_DB_SCALE_ITEM(3000, 0, 0),
+static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(max9867_master_tlv,
+ 0, 2, TLV_DB_SCALE_ITEM(-8600, 200, 1),
+ 3, 17, TLV_DB_SCALE_ITEM(-7800, 400, 0),
+ 18, 25, TLV_DB_SCALE_ITEM(-2000, 200, 0),
+ 26, 34, TLV_DB_SCALE_ITEM( -500, 100, 0),
+ 35, 40, TLV_DB_SCALE_ITEM( 350, 50, 0),
+);
+static DECLARE_TLV_DB_SCALE(max9867_mic_tlv, 0, 100, 0);
+static DECLARE_TLV_DB_SCALE(max9867_line_tlv, -600, 200, 0);
+static DECLARE_TLV_DB_SCALE(max9867_adc_tlv, -1200, 100, 0);
+static DECLARE_TLV_DB_SCALE(max9867_dac_tlv, -1500, 100, 0);
+static DECLARE_TLV_DB_SCALE(max9867_dacboost_tlv, 0, 600, 0);
+static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(max9867_micboost_tlv,
+ 0, 2, TLV_DB_SCALE_ITEM(-2000, 2000, 1),
+ 3, 3, TLV_DB_SCALE_ITEM(3000, 0, 0),
);
static const struct snd_kcontrol_new max9867_snd_controls[] = {
- SOC_DOUBLE_R("Master Playback Volume", MAX9867_LEFTVOL,
- MAX9867_RIGHTVOL, 0, 63, 1),
- SOC_DOUBLE_R_TLV("Capture Volume", MAX9867_LEFTMICGAIN,
- MAX9867_RIGHTMICGAIN,
- 0, 15, 1, max9860_capture_tlv),
- SOC_DOUBLE_R_TLV("Mic Volume", MAX9867_LEFTMICGAIN,
- MAX9867_RIGHTMICGAIN, 0, 31, 1, max9860_mic_tlv),
- SOC_DOUBLE_R_TLV("Mic Boost Volume", MAX9867_LEFTMICGAIN,
- MAX9867_RIGHTMICGAIN, 5, 3, 0, max98088_micboost_tlv),
- SOC_ENUM("Digital Sidetone Src", max9867_sidetone),
- SOC_SINGLE("Sidetone Volume", MAX9867_DACGAIN, 0, 31, 1),
- SOC_SINGLE("DAC Volume", MAX9867_DACLEVEL, 4, 3, 0),
- SOC_SINGLE("DAC Attenuation", MAX9867_DACLEVEL, 0, 15, 1),
- SOC_SINGLE_TLV("ADC Left Volume", MAX9867_ADCLEVEL,
- 4, 15, 1, max9860_adc_left_tlv),
- SOC_SINGLE_TLV("ADC Right Volume", MAX9867_ADCLEVEL,
- 0, 15, 1, max9860_adc_right_tlv),
+ SOC_DOUBLE_R_TLV("Master Playback Volume", MAX9867_LEFTVOL,
+ MAX9867_RIGHTVOL, 0, 40, 1, max9867_master_tlv),
+ SOC_DOUBLE_R_TLV("Line Capture Volume", MAX9867_LEFTLINELVL,
+ MAX9867_RIGHTLINELVL, 0, 15, 1, max9867_line_tlv),
+ SOC_DOUBLE_R_TLV("Mic Capture Volume", MAX9867_LEFTMICGAIN,
+ MAX9867_RIGHTMICGAIN, 0, 20, 1, max9867_mic_tlv),
+ SOC_DOUBLE_R_TLV("Mic Boost Capture Volume", MAX9867_LEFTMICGAIN,
+ MAX9867_RIGHTMICGAIN, 5, 3, 0, max9867_micboost_tlv),
+ SOC_SINGLE("Digital Sidetone Volume", MAX9867_SIDETONE, 0, 31, 1),
+ SOC_SINGLE_TLV("Digital Playback Volume", MAX9867_DACLEVEL, 0, 15, 1,
+ max9867_dac_tlv),
+ SOC_SINGLE_TLV("Digital Boost Playback Volume", MAX9867_DACLEVEL, 4, 3, 0,
+ max9867_dacboost_tlv),
+ SOC_DOUBLE_TLV("Digital Capture Volume", MAX9867_ADCLEVEL, 4, 0, 15, 1,
+ max9867_adc_tlv),
SOC_ENUM("Speaker Mode", max9867_spkmode),
SOC_SINGLE("Volume Smoothing Switch", MAX9867_MODECONFIG, 6, 1, 0),
- SOC_SINGLE("ZCD Switch", MAX9867_MODECONFIG, 5, 1, 0),
- SOC_ENUM("DSP Filter", max9867_filter),
+ SOC_SINGLE("Line ZC Switch", MAX9867_MODECONFIG, 5, 1, 0),
+ SOC_ENUM_EXT("DSP Filter", max9867_filter, max9867_filter_get, max9867_filter_set),
+ SOC_ENUM("ADC Filter", max9867_adc_filter),
+ SOC_ENUM("DAC Filter", max9867_dac_filter),
+ SOC_SINGLE("Mono Playback Switch", MAX9867_IFC1B, 3, 1, 0),
+};
+
+/* Input mixer */
+static const struct snd_kcontrol_new max9867_input_mixer_controls[] = {
+ SOC_DAPM_DOUBLE("Line Capture Switch", MAX9867_INPUTCONFIG, 7, 5, 1, 0),
+ SOC_DAPM_DOUBLE("Mic Capture Switch", MAX9867_INPUTCONFIG, 6, 4, 1, 0),
};
-static const char *const max9867_mux[] = {"None", "Mic", "Line", "Mic_Line"};
+/* Output mixer */
+static const struct snd_kcontrol_new max9867_output_mixer_controls[] = {
+ SOC_DAPM_DOUBLE_R("Line Bypass Switch",
+ MAX9867_LEFTLINELVL, MAX9867_RIGHTLINELVL, 6, 1, 1),
+};
-static SOC_ENUM_SINGLE_DECL(max9867_mux_enum,
- MAX9867_INPUTCONFIG, MAX9867_INPUT_SHIFT,
- max9867_mux);
+/* Sidetone mixer */
+static const struct snd_kcontrol_new max9867_sidetone_mixer_controls[] = {
+ SOC_DAPM_DOUBLE("Sidetone Switch", MAX9867_SIDETONE, 6, 7, 1, 0),
+};
-static const struct snd_kcontrol_new max9867_dapm_mux_controls =
- SOC_DAPM_ENUM("Route", max9867_mux_enum);
+/* Line out switch */
+static const struct snd_kcontrol_new max9867_line_out_control =
+ SOC_DAPM_DOUBLE_R("Switch",
+ MAX9867_LEFTVOL, MAX9867_RIGHTVOL, 6, 1, 1);
-static const struct snd_kcontrol_new max9867_left_dapm_control =
- SOC_DAPM_SINGLE("Switch", MAX9867_PWRMAN, 6, 1, 0);
-static const struct snd_kcontrol_new max9867_right_dapm_control =
- SOC_DAPM_SINGLE("Switch", MAX9867_PWRMAN, 5, 1, 0);
-static const struct snd_kcontrol_new max9867_line_dapm_control =
- SOC_DAPM_SINGLE("Switch", MAX9867_LEFTLINELVL, 6, 1, 1);
+/* DMIC mux */
+static const char *const dmic_mux_text[] = {
+ "ADC", "DMIC"
+};
+static SOC_ENUM_SINGLE_DECL(left_dmic_mux_enum,
+ MAX9867_MICCONFIG, 5, dmic_mux_text);
+static SOC_ENUM_SINGLE_DECL(right_dmic_mux_enum,
+ MAX9867_MICCONFIG, 4, dmic_mux_text);
+static const struct snd_kcontrol_new max9867_left_dmic_mux =
+ SOC_DAPM_ENUM("DMICL Mux", left_dmic_mux_enum);
+static const struct snd_kcontrol_new max9867_right_dmic_mux =
+ SOC_DAPM_ENUM("DMICR Mux", right_dmic_mux_enum);
static const struct snd_soc_dapm_widget max9867_dapm_widgets[] = {
- SND_SOC_DAPM_AIF_IN("DAI_OUT", "HiFi Playback", 0, SND_SOC_NOPM, 0, 0),
- SND_SOC_DAPM_DAC("Left DAC", NULL, MAX9867_PWRMAN, 3, 0),
- SND_SOC_DAPM_DAC("Right DAC", NULL, MAX9867_PWRMAN, 2, 0),
- SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
- SND_SOC_DAPM_OUTPUT("HPOUT"),
-
- SND_SOC_DAPM_AIF_IN("DAI_IN", "HiFi Capture", 0, SND_SOC_NOPM, 0, 0),
- SND_SOC_DAPM_ADC("Left ADC", "HiFi Capture", MAX9867_PWRMAN, 1, 0),
- SND_SOC_DAPM_ADC("Right ADC", "HiFi Capture", MAX9867_PWRMAN, 0, 0),
- SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0,
- &max9867_dapm_mux_controls),
-
- SND_SOC_DAPM_MIXER("Input Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
- SND_SOC_DAPM_SWITCH("Left Line", MAX9867_LEFTLINELVL, 6, 1,
- &max9867_left_dapm_control),
- SND_SOC_DAPM_SWITCH("Right Line", MAX9867_RIGTHLINELVL, 6, 1,
- &max9867_right_dapm_control),
- SND_SOC_DAPM_SWITCH("Line Mixer", SND_SOC_NOPM, 0, 0,
- &max9867_line_dapm_control),
- SND_SOC_DAPM_INPUT("LINE_IN"),
+ SND_SOC_DAPM_INPUT("MICL"),
+ SND_SOC_DAPM_INPUT("MICR"),
+ SND_SOC_DAPM_INPUT("DMICL"),
+ SND_SOC_DAPM_INPUT("DMICR"),
+ SND_SOC_DAPM_INPUT("LINL"),
+ SND_SOC_DAPM_INPUT("LINR"),
+
+ SND_SOC_DAPM_PGA("Left Line Input", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("Right Line Input", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_MIXER_NAMED_CTL("Input Mixer", SND_SOC_NOPM, 0, 0,
+ max9867_input_mixer_controls,
+ ARRAY_SIZE(max9867_input_mixer_controls)),
+ SND_SOC_DAPM_MUX("DMICL Mux", SND_SOC_NOPM, 0, 0,
+ &max9867_left_dmic_mux),
+ SND_SOC_DAPM_MUX("DMICR Mux", SND_SOC_NOPM, 0, 0,
+ &max9867_right_dmic_mux),
+ SND_SOC_DAPM_ADC_E("ADCL", "HiFi Capture", SND_SOC_NOPM, 0, 0,
+ max9867_adc_dac_event,
+ SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_ADC_E("ADCR", "HiFi Capture", SND_SOC_NOPM, 0, 0,
+ max9867_adc_dac_event,
+ SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
+
+ SND_SOC_DAPM_MIXER("Digital", SND_SOC_NOPM, 0, 0,
+ max9867_sidetone_mixer_controls,
+ ARRAY_SIZE(max9867_sidetone_mixer_controls)),
+ SND_SOC_DAPM_MIXER_NAMED_CTL("Output Mixer", SND_SOC_NOPM, 0, 0,
+ max9867_output_mixer_controls,
+ ARRAY_SIZE(max9867_output_mixer_controls)),
+ SND_SOC_DAPM_DAC_E("DACL", "HiFi Playback", SND_SOC_NOPM, 0, 0,
+ max9867_adc_dac_event,
+ SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_DAC_E("DACR", "HiFi Playback", SND_SOC_NOPM, 0, 0,
+ max9867_adc_dac_event,
+ SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_SWITCH("Master Playback", SND_SOC_NOPM, 0, 0,
+ &max9867_line_out_control),
+ SND_SOC_DAPM_OUTPUT("LOUT"),
+ SND_SOC_DAPM_OUTPUT("ROUT"),
};
static const struct snd_soc_dapm_route max9867_audio_map[] = {
- {"Left DAC", NULL, "DAI_OUT"},
- {"Right DAC", NULL, "DAI_OUT"},
- {"Output Mixer", NULL, "Left DAC"},
- {"Output Mixer", NULL, "Right DAC"},
- {"HPOUT", NULL, "Output Mixer"},
-
- {"Left ADC", NULL, "DAI_IN"},
- {"Right ADC", NULL, "DAI_IN"},
- {"Input Mixer", NULL, "Left ADC"},
- {"Input Mixer", NULL, "Right ADC"},
- {"Input Mux", "Line", "Input Mixer"},
- {"Input Mux", "Mic", "Input Mixer"},
- {"Input Mux", "Mic_Line", "Input Mixer"},
- {"Right Line", "Switch", "Input Mux"},
- {"Left Line", "Switch", "Input Mux"},
- {"LINE_IN", NULL, "Left Line"},
- {"LINE_IN", NULL, "Right Line"},
+ {"Left Line Input", NULL, "LINL"},
+ {"Right Line Input", NULL, "LINR"},
+ {"Input Mixer", "Mic Capture Switch", "MICL"},
+ {"Input Mixer", "Mic Capture Switch", "MICR"},
+ {"Input Mixer", "Line Capture Switch", "Left Line Input"},
+ {"Input Mixer", "Line Capture Switch", "Right Line Input"},
+ {"DMICL Mux", "DMIC", "DMICL"},
+ {"DMICR Mux", "DMIC", "DMICR"},
+ {"DMICL Mux", "ADC", "Input Mixer"},
+ {"DMICR Mux", "ADC", "Input Mixer"},
+ {"ADCL", NULL, "DMICL Mux"},
+ {"ADCR", NULL, "DMICR Mux"},
+
+ {"Digital", "Sidetone Switch", "ADCL"},
+ {"Digital", "Sidetone Switch", "ADCR"},
+ {"DACL", NULL, "Digital"},
+ {"DACR", NULL, "Digital"},
+
+ {"Output Mixer", "Line Bypass Switch", "Left Line Input"},
+ {"Output Mixer", "Line Bypass Switch", "Right Line Input"},
+ {"Output Mixer", NULL, "DACL"},
+ {"Output Mixer", NULL, "DACR"},
+ {"Master Playback", "Switch", "Output Mixer"},
+ {"LOUT", NULL, "Master Playback"},
+ {"ROUT", NULL, "Master Playback"},
+};
+
+static const unsigned int max9867_rates_44k1[] = {
+ 11025, 22050, 44100,
+};
+
+static const struct snd_pcm_hw_constraint_list max9867_constraints_44k1 = {
+ .list = max9867_rates_44k1,
+ .count = ARRAY_SIZE(max9867_rates_44k1),
};
-enum rates {
- pcm_rate_8, pcm_rate_16, pcm_rate_24,
- pcm_rate_32, pcm_rate_44,
- pcm_rate_48, max_pcm_rate,
+static const unsigned int max9867_rates_48k[] = {
+ 8000, 16000, 32000, 48000,
};
-static const struct ni_div_rates {
- u32 mclk;
- u16 ni[max_pcm_rate];
-} ni_div[] = {
- {11289600, {0x116A, 0x22D4, 0x343F, 0x45A9, 0x6000, 0x687D} },
- {12000000, {0x1062, 0x20C5, 0x3127, 0x4189, 0x5A51, 0x624E} },
- {12288000, {0x1000, 0x2000, 0x3000, 0x4000, 0x5833, 0x6000} },
- {13000000, {0x0F20, 0x1E3F, 0x2D5F, 0x3C7F, 0x535F, 0x5ABE} },
- {19200000, {0x0A3D, 0x147B, 0x1EB8, 0x28F6, 0x3873, 0x3D71} },
- {24000000, {0x1062, 0x20C5, 0x1893, 0x4189, 0x5A51, 0x624E} },
- {26000000, {0x0F20, 0x1E3F, 0x16AF, 0x3C7F, 0x535F, 0x5ABE} },
- {27000000, {0x0E90, 0x1D21, 0x15D8, 0x3A41, 0x5048, 0x5762} },
+static const struct snd_pcm_hw_constraint_list max9867_constraints_48k = {
+ .list = max9867_rates_48k,
+ .count = ARRAY_SIZE(max9867_rates_48k),
};
-static inline int get_ni_value(int mclk, int rate)
+static int max9867_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
{
- int i, ret = 0;
+ struct max9867_priv *max9867 =
+ snd_soc_component_get_drvdata(dai->component);
- /* find the closest rate index*/
- for (i = 0; i < ARRAY_SIZE(ni_div); i++) {
- if (ni_div[i].mclk >= mclk)
- break;
- }
- if (i == ARRAY_SIZE(ni_div))
- return -EINVAL;
+ if (max9867->constraints)
+ snd_pcm_hw_constraint_list(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_RATE, max9867->constraints);
- switch (rate) {
- case 8000:
- return ni_div[i].ni[pcm_rate_8];
- case 16000:
- return ni_div[i].ni[pcm_rate_16];
- case 32000:
- return ni_div[i].ni[pcm_rate_32];
- case 44100:
- return ni_div[i].ni[pcm_rate_44];
- case 48000:
- return ni_div[i].ni[pcm_rate_48];
- default:
- pr_err("%s wrong rate %d\n", __func__, rate);
- ret = -EINVAL;
- }
- return ret;
+ return 0;
}
static int max9867_dai_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
{
- struct snd_soc_codec *codec = dai->codec;
- struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);
- unsigned int ni_h, ni_l;
- int value;
+ int value, freq = 0;
+ unsigned long int rate, ratio;
+ struct snd_soc_component *component = dai->component;
+ struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);
+ unsigned int ni = DIV_ROUND_CLOSEST_ULL(96ULL * 0x10000 * params_rate(params),
+ max9867->pclk);
- value = get_ni_value(max9867->sysclk, params_rate(params));
- if (value < 0)
- return value;
-
- ni_h = (0xFF00 & value) >> 8;
- ni_l = 0x00FF & value;
/* set up the ni value */
regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKHIGH,
- MAX9867_NI_HIGH_MASK, ni_h);
+ MAX9867_NI_HIGH_MASK, (0xFF00 & ni) >> 8);
regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKLOW,
- MAX9867_NI_LOW_MASK, ni_l);
- if (!max9867->master) {
- /*
- * digital pll locks on to any externally supplied LRCLK signal
- * and also enable rapid lock mode.
- */
- regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKLOW,
- MAX9867_RAPID_LOCK, MAX9867_RAPID_LOCK);
- regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKHIGH,
- MAX9867_PLL, MAX9867_PLL);
- } else {
- unsigned long int bclk_rate, pclk_bclk_ratio;
- int bclk_value;
-
- bclk_rate = params_rate(params) * 2 * params_width(params);
- pclk_bclk_ratio = max9867->pclk/bclk_rate;
- switch (params_width(params)) {
- case 8:
- case 16:
- switch (pclk_bclk_ratio) {
- case 2:
- bclk_value = MAX9867_IFC1B_PCLK_2;
- break;
- case 4:
- bclk_value = MAX9867_IFC1B_PCLK_4;
- break;
+ MAX9867_NI_LOW_MASK, 0x00FF & ni);
+ if (max9867->provider) {
+ if (max9867->dsp_a) {
+ value = MAX9867_IFC1B_48X;
+ } else {
+ rate = params_rate(params) * 2 * params_width(params);
+ ratio = max9867->pclk / rate;
+ switch (params_width(params)) {
case 8:
- bclk_value = MAX9867_IFC1B_PCLK_8;
- break;
case 16:
- bclk_value = MAX9867_IFC1B_PCLK_16;
+ switch (ratio) {
+ case 2:
+ value = MAX9867_IFC1B_PCLK_2;
+ break;
+ case 4:
+ value = MAX9867_IFC1B_PCLK_4;
+ break;
+ case 8:
+ value = MAX9867_IFC1B_PCLK_8;
+ break;
+ case 16:
+ value = MAX9867_IFC1B_PCLK_16;
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ case 24:
+ value = MAX9867_IFC1B_48X;
+ break;
+ case 32:
+ value = MAX9867_IFC1B_64X;
break;
default:
- dev_err(codec->dev,
- "unsupported sampling rate\n");
return -EINVAL;
}
- break;
- case 24:
- bclk_value = MAX9867_IFC1B_24BIT;
- break;
- case 32:
- bclk_value = MAX9867_IFC1B_32BIT;
- break;
- default:
- dev_err(codec->dev, "unsupported sampling rate\n");
- return -EINVAL;
}
regmap_update_bits(max9867->regmap, MAX9867_IFC1B,
- MAX9867_IFC1B_BCLK_MASK, bclk_value);
- }
- return 0;
-}
+ MAX9867_IFC1B_BCLK_MASK, value);
-static int max9867_prepare(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
-{
- struct snd_soc_codec *codec = dai->codec;
- struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);
+ /* Exact integer mode available for 8kHz and 16kHz sample rates
+ * and certain PCLK (prescaled MCLK) values.
+ */
+ if (params_rate(params) == 8000 ||
+ params_rate(params) == 16000) {
+ switch (max9867->pclk) {
+ case 12000000:
+ freq = 0x08;
+ break;
+ case 13000000:
+ freq = 0x0A;
+ break;
+ case 16000000:
+ freq = 0x0C;
+ break;
+ case 19200000:
+ freq = 0x0E;
+ break;
+ }
+ }
+ if (freq && params_rate(params) == 16000)
+ freq++;
- regmap_update_bits(max9867->regmap, MAX9867_PWRMAN,
- MAX9867_SHTDOWN_MASK, MAX9867_SHTDOWN_MASK);
+ /* If exact integer mode not available, the freq value
+ * remains zero, i.e. normal mode is used.
+ */
+ regmap_update_bits(max9867->regmap, MAX9867_SYSCLK,
+ MAX9867_FREQ_MASK, freq);
+ } else {
+ /*
+ * digital pll locks on to any externally supplied LRCLK signal
+ * and also enable rapid lock mode.
+ */
+ regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKLOW,
+ MAX9867_RAPID_LOCK, MAX9867_RAPID_LOCK);
+ regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKHIGH,
+ MAX9867_PLL, MAX9867_PLL);
+ }
return 0;
}
-static int max9867_mute(struct snd_soc_dai *dai, int mute)
+static int max9867_mute(struct snd_soc_dai *dai, int mute, int direction)
{
- struct snd_soc_codec *codec = dai->codec;
- struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);
+ struct snd_soc_component *component = dai->component;
+ struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);
- if (mute)
- regmap_update_bits(max9867->regmap, MAX9867_DACLEVEL,
- MAX9867_DAC_MUTE_MASK, MAX9867_DAC_MUTE_MASK);
- else
- regmap_update_bits(max9867->regmap, MAX9867_DACLEVEL,
- MAX9867_DAC_MUTE_MASK, 0);
- return 0;
+ return regmap_update_bits(max9867->regmap, MAX9867_DACLEVEL,
+ 1 << 6, !!mute << 6);
}
static int max9867_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 max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);
+ struct snd_soc_component *component = codec_dai->component;
+ struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);
int value = 0;
/* Set the prescaler based on the master clock frequency*/
if (freq >= 10000000 && freq <= 20000000) {
value |= MAX9867_PSCLK_10_20;
- max9867->pclk = freq;
+ max9867->pclk = freq;
} else if (freq >= 20000000 && freq <= 40000000) {
value |= MAX9867_PSCLK_20_40;
- max9867->pclk = freq/2;
+ max9867->pclk = freq / 2;
} else if (freq >= 40000000 && freq <= 60000000) {
value |= MAX9867_PSCLK_40_60;
- max9867->pclk = freq/4;
+ max9867->pclk = freq / 4;
} else {
- pr_err("bad clock frequency %d", freq);
+ dev_err(component->dev,
+ "Invalid clock frequency %uHz (required 10-60MHz)\n",
+ freq);
return -EINVAL;
}
- value = value << MAX9867_PSCLK_SHIFT;
+ if (freq % 48000 == 0)
+ max9867->constraints = &max9867_constraints_48k;
+ else if (freq % 44100 == 0)
+ max9867->constraints = &max9867_constraints_44k1;
+ else
+ dev_warn(component->dev,
+ "Unable to set exact rate with %uHz clock frequency\n",
+ freq);
max9867->sysclk = freq;
- /* exact integer mode is not supported */
- value &= ~MAX9867_FREQ_MASK;
+ value = value << MAX9867_PSCLK_SHIFT;
regmap_update_bits(max9867->regmap, MAX9867_SYSCLK,
MAX9867_PSCLK_MASK, value);
return 0;
@@ -306,27 +467,36 @@ static int max9867_set_dai_sysclk(struct snd_soc_dai *codec_dai,
static int max9867_dai_set_fmt(struct snd_soc_dai *codec_dai,
unsigned int fmt)
{
- struct snd_soc_codec *codec = codec_dai->codec;
- struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);
- u8 iface1A = 0, iface1B = 0;
-
- switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBM_CFM:
- max9867->master = 1;
- iface1A |= MAX9867_MASTER;
+ struct snd_soc_component *component = codec_dai->component;
+ struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);
+ u8 iface1A, iface1B;
+
+ switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+ case SND_SOC_DAIFMT_CBP_CFP:
+ max9867->provider = true;
+ iface1A = MAX9867_MASTER;
+ iface1B = MAX9867_IFC1B_48X;
break;
- case SND_SOC_DAIFMT_CBS_CFS:
- max9867->master = 0;
- iface1A &= ~MAX9867_MASTER;
+ case SND_SOC_DAIFMT_CBC_CFC:
+ max9867->provider = false;
+ iface1A = iface1B = 0;
break;
default:
return -EINVAL;
}
- /* for i2s compatible mode */
- iface1A |= MAX9867_I2S_DLY;
- /* SDOUT goes to hiz state after all data is transferred */
- iface1A |= MAX9867_SDOUT_HIZ;
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ max9867->dsp_a = false;
+ iface1A |= MAX9867_I2S_DLY;
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ max9867->dsp_a = true;
+ iface1A |= MAX9867_TDM_MODE | MAX9867_SDOUT_HIZ;
+ break;
+ default:
+ return -EINVAL;
+ }
/* Clock inversion bits, BCI and WCI */
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
@@ -346,83 +516,119 @@ static int max9867_dai_set_fmt(struct snd_soc_dai *codec_dai,
}
regmap_write(max9867->regmap, MAX9867_IFC1A, iface1A);
- regmap_write(max9867->regmap, MAX9867_IFC1B, iface1B);
+ regmap_update_bits(max9867->regmap, MAX9867_IFC1B,
+ MAX9867_IFC1B_BCLK_MASK, iface1B);
+
return 0;
}
-static struct snd_soc_dai_ops max9867_dai_ops = {
- .set_fmt = max9867_dai_set_fmt,
+static const struct snd_soc_dai_ops max9867_dai_ops = {
.set_sysclk = max9867_set_dai_sysclk,
- .prepare = max9867_prepare,
- .digital_mute = max9867_mute,
- .hw_params = max9867_dai_hw_params,
+ .set_fmt = max9867_dai_set_fmt,
+ .mute_stream = max9867_mute,
+ .startup = max9867_startup,
+ .hw_params = max9867_dai_hw_params,
+ .no_capture_mute = 1,
};
-#define MAX9867_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\
- SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
-#define MAX9867_FORMATS (SNDRV_PCM_FMTBIT_S16_LE)
-
static struct snd_soc_dai_driver max9867_dai[] = {
{
.name = "max9867-aif1",
.playback = {
.stream_name = "HiFi Playback",
- .channels_min = 1,
+ .channels_min = 2,
.channels_max = 2,
- .rates = MAX9867_RATES,
- .formats = MAX9867_FORMATS,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
},
.capture = {
.stream_name = "HiFi Capture",
- .channels_min = 1,
+ .channels_min = 2,
.channels_max = 2,
- .rates = MAX9867_RATES,
- .formats = MAX9867_FORMATS,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
},
.ops = &max9867_dai_ops,
+ .symmetric_rate = 1,
}
};
-#ifdef CONFIG_PM_SLEEP
-static int max9867_suspend(struct device *dev)
+#ifdef CONFIG_PM
+static int max9867_suspend(struct snd_soc_component *component)
{
- struct max9867_priv *max9867 = dev_get_drvdata(dev);
+ struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component);
+
+ snd_soc_dapm_force_bias_level(dapm, SND_SOC_BIAS_OFF);
- /* Drop down to power saving mode when system is suspended */
- regmap_update_bits(max9867->regmap, MAX9867_PWRMAN,
- MAX9867_SHTDOWN_MASK, ~MAX9867_SHTDOWN_MASK);
return 0;
}
-static int max9867_resume(struct device *dev)
+static int max9867_resume(struct snd_soc_component *component)
{
- struct max9867_priv *max9867 = dev_get_drvdata(dev);
+ struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component);
+
+ snd_soc_dapm_force_bias_level(dapm, SND_SOC_BIAS_STANDBY);
- regmap_update_bits(max9867->regmap, MAX9867_PWRMAN,
- MAX9867_SHTDOWN_MASK, MAX9867_SHTDOWN_MASK);
return 0;
}
+#else
+#define max9867_suspend NULL
+#define max9867_resume NULL
#endif
-static int max9867_probe(struct snd_soc_codec *codec)
+static int max9867_set_bias_level(struct snd_soc_component *component,
+ enum snd_soc_bias_level level)
{
- struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);
+ int err;
+ struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);
+ struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component);
+
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ err = clk_prepare_enable(max9867->mclk);
+ if (err)
+ return err;
+ break;
+ case SND_SOC_BIAS_STANDBY:
+ if (snd_soc_dapm_get_bias_level(dapm) == SND_SOC_BIAS_OFF) {
+ err = regcache_sync(max9867->regmap);
+ if (err)
+ return err;
+
+ err = regmap_write(max9867->regmap,
+ MAX9867_PWRMAN, 0xff);
+ if (err)
+ return err;
+ }
+ break;
+ case SND_SOC_BIAS_OFF:
+ err = regmap_write(max9867->regmap, MAX9867_PWRMAN, 0);
+ if (err)
+ return err;
+
+ regcache_mark_dirty(max9867->regmap);
+ clk_disable_unprepare(max9867->mclk);
+ break;
+ default:
+ break;
+ }
- dev_dbg(codec->dev, "max98090_probe\n");
- max9867->codec = codec;
return 0;
}
-static struct snd_soc_codec_driver max9867_codec = {
- .probe = max9867_probe,
- .component_driver = {
- .controls = max9867_snd_controls,
- .num_controls = ARRAY_SIZE(max9867_snd_controls),
- .dapm_routes = max9867_audio_map,
- .num_dapm_routes = ARRAY_SIZE(max9867_audio_map),
- .dapm_widgets = max9867_dapm_widgets,
- .num_dapm_widgets = ARRAY_SIZE(max9867_dapm_widgets),
- },
+static const struct snd_soc_component_driver max9867_component = {
+ .controls = max9867_snd_controls,
+ .num_controls = ARRAY_SIZE(max9867_snd_controls),
+ .dapm_routes = max9867_audio_map,
+ .num_dapm_routes = ARRAY_SIZE(max9867_audio_map),
+ .dapm_widgets = max9867_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(max9867_dapm_widgets),
+ .suspend = max9867_suspend,
+ .resume = max9867_resume,
+ .set_bias_level = max9867_set_bias_level,
+ .idle_bias_on = 1,
+ .use_pmdown_time = 1,
+ .endianness = 1,
};
static bool max9867_volatile_register(struct device *dev, unsigned int reg)
@@ -438,47 +644,20 @@ static bool max9867_volatile_register(struct device *dev, unsigned int reg)
}
}
-static const struct reg_default max9867_reg[] = {
- { 0x04, 0x00 },
- { 0x05, 0x00 },
- { 0x06, 0x00 },
- { 0x07, 0x00 },
- { 0x08, 0x00 },
- { 0x09, 0x00 },
- { 0x0A, 0x00 },
- { 0x0B, 0x00 },
- { 0x0C, 0x00 },
- { 0x0D, 0x00 },
- { 0x0E, 0x00 },
- { 0x0F, 0x00 },
- { 0x10, 0x00 },
- { 0x11, 0x00 },
- { 0x12, 0x00 },
- { 0x13, 0x00 },
- { 0x14, 0x00 },
- { 0x15, 0x00 },
- { 0x16, 0x00 },
- { 0x17, 0x00 },
-};
-
static const struct regmap_config max9867_regmap = {
.reg_bits = 8,
.val_bits = 8,
.max_register = MAX9867_REVISION,
- .reg_defaults = max9867_reg,
- .num_reg_defaults = ARRAY_SIZE(max9867_reg),
.volatile_reg = max9867_volatile_register,
.cache_type = REGCACHE_RBTREE,
};
-static int max9867_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
+static int max9867_i2c_probe(struct i2c_client *i2c)
{
struct max9867_priv *max9867;
- int ret = 0, reg;
+ int ret, reg;
- max9867 = devm_kzalloc(&i2c->dev,
- sizeof(*max9867), GFP_KERNEL);
+ max9867 = devm_kzalloc(&i2c->dev, sizeof(*max9867), GFP_KERNEL);
if (!max9867)
return -ENOMEM;
@@ -486,61 +665,54 @@ static int max9867_i2c_probe(struct i2c_client *i2c,
max9867->regmap = devm_regmap_init_i2c(i2c, &max9867_regmap);
if (IS_ERR(max9867->regmap)) {
ret = PTR_ERR(max9867->regmap);
- dev_err(&i2c->dev,
- "Failed to allocate regmap: %d\n", ret);
+ dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret);
return ret;
}
- ret = regmap_read(max9867->regmap,
- MAX9867_REVISION, &reg);
+ ret = regmap_read(max9867->regmap, MAX9867_REVISION, &reg);
if (ret < 0) {
dev_err(&i2c->dev, "Failed to read: %d\n", ret);
return ret;
}
dev_info(&i2c->dev, "device revision: %x\n", reg);
- ret = snd_soc_register_codec(&i2c->dev, &max9867_codec,
+ ret = devm_snd_soc_register_component(&i2c->dev, &max9867_component,
max9867_dai, ARRAY_SIZE(max9867_dai));
if (ret < 0) {
- dev_err(&i2c->dev, "Failed to register codec: %d\n", ret);
+ dev_err(&i2c->dev, "Failed to register component: %d\n", ret);
return ret;
}
- return ret;
-}
-static int max9867_i2c_remove(struct i2c_client *client)
-{
- snd_soc_unregister_codec(&client->dev);
+ max9867->mclk = devm_clk_get(&i2c->dev, NULL);
+ if (IS_ERR(max9867->mclk))
+ return PTR_ERR(max9867->mclk);
+
return 0;
}
static const struct i2c_device_id max9867_i2c_id[] = {
- { "max9867", 0 },
+ { "max9867" },
{ }
};
MODULE_DEVICE_TABLE(i2c, max9867_i2c_id);
+#ifdef CONFIG_OF
static const struct of_device_id max9867_of_match[] = {
{ .compatible = "maxim,max9867", },
{ }
};
MODULE_DEVICE_TABLE(of, max9867_of_match);
-
-static const struct dev_pm_ops max9867_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(max9867_suspend, max9867_resume)
-};
+#endif
static struct i2c_driver max9867_i2c_driver = {
.driver = {
.name = "max9867",
.of_match_table = of_match_ptr(max9867_of_match),
- .pm = &max9867_pm_ops,
},
- .probe = max9867_i2c_probe,
- .remove = max9867_i2c_remove,
+ .probe = max9867_i2c_probe,
.id_table = max9867_i2c_id,
};
module_i2c_driver(max9867_i2c_driver);
-MODULE_AUTHOR("anish kumar <yesanishhere@gmail.com>");
-MODULE_DESCRIPTION("ALSA SoC MAX9867 driver");
+MODULE_AUTHOR("Ladislav Michl <ladis@linux-mips.org>");
+MODULE_DESCRIPTION("ASoC MAX9867 driver");
MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2025-12-25 16:18:35 +0000