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linux/sound/soc/codecs/cs42l42.h

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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 Based on 2 normalized pattern(s): 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 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 # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-04 10:11:33 +02:00
/* SPDX-License-Identifier: GPL-2.0-only */
ASoC: Add support for CS42L42 codec Add support for Cirrus Logic CS42L42 codec. SoundWire support is not enabled. Features support for I2C control and I2S audio. Signed-off-by: James Schulman <james.schulman@cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-07 14:38:37 -06:00
/*
* cs42l42.h -- CS42L42 ALSA SoC audio driver header
*
ASoC: cs42l42: Move CS42L42 register descriptions to general include This is to allow the hda driver to have access to the register names, for improved maintainability. Also ensure new header is aligned to 100 columns. Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com> Acked-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20220504161236.2490532-2-sbinding@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-05-04 17:12:34 +01:00
* Copyright 2016-2022 Cirrus Logic, Inc.
ASoC: Add support for CS42L42 codec Add support for Cirrus Logic CS42L42 codec. SoundWire support is not enabled. Features support for I2C control and I2S audio. Signed-off-by: James Schulman <james.schulman@cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-07 14:38:37 -06:00
*
* Author: James Schulman <james.schulman@cirrus.com>
* Author: Brian Austin <brian.austin@cirrus.com>
* Author: Michael White <michael.white@cirrus.com>
*/
#ifndef __CS42L42_H__
#define __CS42L42_H__
ASoC: cs42l42: Add include dependencies to cs42l42.h Make cs42l42.h include the other headers it depends on instead of assuming that the .c file already included them. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20220817122347.1356773-3-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-08-17 13:23:44 +01:00
#include <dt-bindings/sound/cs42l42.h>
#include <linux/device.h>
#include <linux/gpio.h>
ASoC: cs42l42: Report initial jack state When a jack handler is registered in cs42l42_set_jack() the initial state should be reported if an attached headphone/headset has already been detected. The jack detect sequence takes around 1 second: typically long enough for the machine driver to probe and register the jack handler in time to receive the first report from the interrupt handler. So it is possible on some systems that the correct initial state was seen simply because of lucky timing. Modular builds were more likely to miss the reporting of the initial state. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Fixes: 4ca239f33737 ("ASoC: cs42l42: Always enable TS_PLUG and TS_UNPLUG interrupts") Link: https://lore.kernel.org/r/20211119124854.58939-1-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-11-19 12:48:54 +00:00
#include <linux/mutex.h>
ASoC: cs42l42: Add include dependencies to cs42l42.h Make cs42l42.h include the other headers it depends on instead of assuming that the .c file already included them. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20220817122347.1356773-3-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-08-17 13:23:44 +01:00
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
ASoC: cs42l42: Report jack and button detection Report the Jack events to the user space through ALSA. Also moves request_threaded_irq() to component_probe so it don't get interrupts before the initialization the struct snd_soc_jack. Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com> Link: https://lore.kernel.org/r/20210306185553.62053-12-tanureal@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-03-06 18:55:49 +00:00
#include <sound/jack.h>
ASoC: cs42l42: Move CS42L42 register descriptions to general include This is to allow the hda driver to have access to the register names, for improved maintainability. Also ensure new header is aligned to 100 columns. Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com> Acked-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20220504161236.2490532-2-sbinding@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-05-04 17:12:34 +01:00
#include <sound/cs42l42.h>
ASoC: Add support for CS42L42 codec Add support for Cirrus Logic CS42L42 codec. SoundWire support is not enabled. Features support for I2C control and I2S audio. Signed-off-by: James Schulman <james.schulman@cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-07 14:38:37 -06:00
struct cs42l42_private {
struct regmap *regmap;
ASoC: cs42l42: Prevent NULL pointer deref in interrupt handler The interrupt handling code was getting the struct device* from a struct snd_soc_component* stored in struct cs42l42_private. If the interrupt was asserted before ASoC calls component_probe() the snd_soc_component* will be NULL. The stored snd_soc_component* is not actually used for anything other than indirectly getting the struct device*. Remove it, and store the struct device* in struct cs42l42_private. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20211025112258.9282-1-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-10-25 12:22:58 +01:00
struct device *dev;
ASoC: Add support for CS42L42 codec Add support for Cirrus Logic CS42L42 codec. SoundWire support is not enabled. Features support for I2C control and I2S audio. Signed-off-by: James Schulman <james.schulman@cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-07 14:38:37 -06:00
struct regulator_bulk_data supplies[CS42L42_NUM_SUPPLIES];
struct gpio_desc *reset_gpio;
struct completion pdn_done;
ASoC: cs42l42: Add support for set_jack calls Replace the internal jack creation by set_jack call, so users can map buttons in their machine driver Also only enable jack detection IRQ after set_jack call Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com> Link: https://lore.kernel.org/r/20210426155303.853236-1-tanureal@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-04-26 16:53:01 +01:00
struct snd_soc_jack *jack;
ASoC: cs42l42: Change jack_detect_mutex to a lock of all IRQ handling Rename jack_detect_mutex to irq_lock and make it lock the entire IRQ handling. The jack_detect_mutex was introduced to synchronize registering an ALSA jack handler, via cs42l42_set_jack(), with the jack state processing in the IRQ handler, and was taken only around the relevant part of the IRQ handling code. System suspend will need to synchronize with the IRQ handler thread so will need a similar mutex that surrounds all of the IRQ handling. Repurposing the existing jack_detect_mutex is the simplest option. It does no harm for a call to cs42l42_set_jack() to additionally block the first few lines of IRQ handling, and the only interrupts used by the driver are all for jack handling. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20220121120412.672284-3-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-01-21 12:04:11 +00:00
struct mutex irq_lock;
ASoC: cs42l42: PLL must be running when changing MCLK_SRC_SEL Both SCLK and PLL clocks must be running to drive the glitch-free mux behind MCLK_SRC_SEL and complete the switchover. This patch moves the writing of MCLK_SRC_SEL to when the PLL is started and stopped, so that it only transitions while the PLL is running. The unconditional write MCLK_SRC_SEL=0 in cs42l42_mute_stream() is safe because if the PLL is not running MCLK_SRC_SEL is already 0. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Fixes: 43fc357199f9 ("ASoC: cs42l42: Set clock source for both ways of stream") Link: https://lore.kernel.org/r/20210805161111.10410-1-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-08-05 17:11:04 +01:00
int pll_config;
ASoC: Add support for CS42L42 codec Add support for Cirrus Logic CS42L42 codec. SoundWire support is not enabled. Features support for I2C control and I2S audio. Signed-off-by: James Schulman <james.schulman@cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-07 14:38:37 -06:00
u32 sclk;
u32 srate;
u8 plug_state;
u8 hs_type;
u8 ts_inv;
u8 ts_dbnc_rise;
u8 ts_dbnc_fall;
u8 btn_det_init_dbnce;
u8 btn_det_event_dbnce;
u8 bias_thresholds[CS42L42_NUM_BIASES];
u8 hs_bias_ramp_rate;
u8 hs_bias_ramp_time;
ASoC: cs42l42: make HSBIAS_SENSE_EN optional HSBIAS_SENSE_EN configures HSBIAS output current sense through the external 2.21-k resistor. HSBIAS_SENSE is hardware feature to reduce the potential pop noise during the headset plug out slowly. But on some platforms ESD voltage will affect it causing test to fail, especially with CTIA headset type. For different hardware setups, a designer might want to tweak default behavior. Signed-off-by: Vitaly Rodionov <vitalyr@opensource.cirrus.com> Link: https://lore.kernel.org/r/20210511145220.125760-1-vitalyr@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-05-11 15:52:20 +01:00
u8 hs_bias_sense_en;
ASoC: cs42l42: Set clock source for both ways of stream Move the enable/disable of clocks to cs42l42_mute_stream so the record path also get clocks. Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com> Link: https://lore.kernel.org/r/20210306185553.62053-10-tanureal@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-03-06 18:55:47 +00:00
u8 stream_use;
ASoC: cs42l42: Allow time for HP/ADC to power-up after enable After enabling the HP or ADC by writing the corresponding PDN=0, it takes around 20 milliseconds for it to power up and the midrail supply to be stable. Add this wait into a DAPM widget callback. If HP and ADC are both powering up in a DAPM sequence, there's no need to do the wait twice. The widget will perform one wait in the POST_PMU if there was a PRE_PMU for one or both. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20211015133619.4698-13-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-10-15 14:36:15 +01:00
bool hp_adc_up_pending;
ASoC: cs42l42: Handle system suspend Add system suspend functions to handle clean power-down on suspend and restoring registers on resume. The jack state could change during suspend. Plug->unplug and unplug->plug are straightforward because this looks no different from any other plug state change - there will be a plugged or unplugged interrupt pending. The jack could be unplugged and a different type of jack plugged, and on resume the plug state would not have changed. Setting plug_state back to TS_TRANS (transitioning) will make the next plug interrupt after resume run a type detection. During system suspend any jack plug/unplug and button events will not be reported or generate a system wakeup. If the plug state or headset type has changed it will be reported after resume. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://lore.kernel.org/r/20220121120412.672284-4-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-01-21 12:04:12 +00:00
bool suspended;
ASoC: Add support for CS42L42 codec Add support for Cirrus Logic CS42L42 codec. SoundWire support is not enabled. Features support for I2C control and I2S audio. Signed-off-by: James Schulman <james.schulman@cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-07 14:38:37 -06:00
};
#endif /* __CS42L42_H__ */
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