diff options
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/Makefile | 2 | ||||
| -rw-r--r-- | sound/soc/soc-component.c | 194 | ||||
| -rw-r--r-- | sound/soc/soc-io.c | 202 |
3 files changed, 195 insertions, 203 deletions
diff --git a/sound/soc/Makefile b/sound/soc/Makefile index 7f1747518e79..ddbac3a2169f 100644 --- a/sound/soc/Makefile +++ b/sound/soc/Makefile @@ -1,6 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 snd-soc-core-objs := soc-core.o soc-dapm.o soc-jack.o soc-utils.o soc-dai.o soc-component.o -snd-soc-core-objs += soc-pcm.o soc-io.o soc-devres.o soc-ops.o soc-link.o soc-card.o +snd-soc-core-objs += soc-pcm.o soc-devres.o soc-ops.o soc-link.o soc-card.o snd-soc-core-$(CONFIG_SND_SOC_COMPRESS) += soc-compress.o ifneq ($(CONFIG_SND_SOC_TOPOLOGY),) diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c index 7624ff5b67d3..d121f5f7633c 100644 --- a/sound/soc/soc-component.c +++ b/sound/soc/soc-component.c @@ -2,7 +2,10 @@ // // soc-component.c // +// Copyright 2009-2011 Wolfson Microelectronics PLC. // Copyright (C) 2019 Renesas Electronics Corp. +// +// Mark Brown <broonie@opensource.wolfsonmicro.com> // Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> // #include <linux/module.h> @@ -400,6 +403,197 @@ EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap); #endif +/** + * snd_soc_component_read() - Read register value + * @component: Component to read from + * @reg: Register to read + * @val: Pointer to where the read value is stored + * + * Return: 0 on success, a negative error code otherwise. + */ +int snd_soc_component_read(struct snd_soc_component *component, + unsigned int reg, unsigned int *val) +{ + int ret; + + if (component->regmap) + ret = regmap_read(component->regmap, reg, val); + else if (component->driver->read) { + *val = component->driver->read(component, reg); + ret = 0; + } + else + ret = -EIO; + + return soc_component_ret(component, ret); +} +EXPORT_SYMBOL_GPL(snd_soc_component_read); + +unsigned int snd_soc_component_read32(struct snd_soc_component *component, + unsigned int reg) +{ + unsigned int val; + int ret; + + ret = snd_soc_component_read(component, reg, &val); + if (ret < 0) + return soc_component_ret(component, -1); + + return val; +} +EXPORT_SYMBOL_GPL(snd_soc_component_read32); + +/** + * snd_soc_component_write() - Write register value + * @component: Component to write to + * @reg: Register to write + * @val: Value to write to the register + * + * Return: 0 on success, a negative error code otherwise. + */ +int snd_soc_component_write(struct snd_soc_component *component, + unsigned int reg, unsigned int val) +{ + int ret = -EIO; + + if (component->regmap) + ret = regmap_write(component->regmap, reg, val); + else if (component->driver->write) + ret = component->driver->write(component, reg, val); + + return soc_component_ret(component, ret); +} +EXPORT_SYMBOL_GPL(snd_soc_component_write); + +static int snd_soc_component_update_bits_legacy( + struct snd_soc_component *component, unsigned int reg, + unsigned int mask, unsigned int val, bool *change) +{ + unsigned int old, new; + int ret; + + mutex_lock(&component->io_mutex); + + ret = snd_soc_component_read(component, reg, &old); + if (ret < 0) + goto out_unlock; + + new = (old & ~mask) | (val & mask); + *change = old != new; + if (*change) + ret = snd_soc_component_write(component, reg, new); +out_unlock: + mutex_unlock(&component->io_mutex); + + return soc_component_ret(component, ret); +} + +/** + * snd_soc_component_update_bits() - Perform read/modify/write cycle + * @component: Component to update + * @reg: Register to update + * @mask: Mask that specifies which bits to update + * @val: New value for the bits specified by mask + * + * Return: 1 if the operation was successful and the value of the register + * changed, 0 if the operation was successful, but the value did not change. + * Returns a negative error code otherwise. + */ +int snd_soc_component_update_bits(struct snd_soc_component *component, + unsigned int reg, unsigned int mask, unsigned int val) +{ + bool change; + int ret; + + if (component->regmap) + ret = regmap_update_bits_check(component->regmap, reg, mask, + val, &change); + else + ret = snd_soc_component_update_bits_legacy(component, reg, + mask, val, &change); + + if (ret < 0) + return soc_component_ret(component, ret); + return change; +} +EXPORT_SYMBOL_GPL(snd_soc_component_update_bits); + +/** + * snd_soc_component_update_bits_async() - Perform asynchronous + * read/modify/write cycle + * @component: Component to update + * @reg: Register to update + * @mask: Mask that specifies which bits to update + * @val: New value for the bits specified by mask + * + * This function is similar to snd_soc_component_update_bits(), but the update + * operation is scheduled asynchronously. This means it may not be completed + * when the function returns. To make sure that all scheduled updates have been + * completed snd_soc_component_async_complete() must be called. + * + * Return: 1 if the operation was successful and the value of the register + * changed, 0 if the operation was successful, but the value did not change. + * Returns a negative error code otherwise. + */ +int snd_soc_component_update_bits_async(struct snd_soc_component *component, + unsigned int reg, unsigned int mask, unsigned int val) +{ + bool change; + int ret; + + if (component->regmap) + ret = regmap_update_bits_check_async(component->regmap, reg, + mask, val, &change); + else + ret = snd_soc_component_update_bits_legacy(component, reg, + mask, val, &change); + + if (ret < 0) + return soc_component_ret(component, ret); + return change; +} +EXPORT_SYMBOL_GPL(snd_soc_component_update_bits_async); + +/** + * snd_soc_component_async_complete() - Ensure asynchronous I/O has completed + * @component: Component for which to wait + * + * This function blocks until all asynchronous I/O which has previously been + * scheduled using snd_soc_component_update_bits_async() has completed. + */ +void snd_soc_component_async_complete(struct snd_soc_component *component) +{ + if (component->regmap) + regmap_async_complete(component->regmap); +} +EXPORT_SYMBOL_GPL(snd_soc_component_async_complete); + +/** + * snd_soc_component_test_bits - Test register for change + * @component: component + * @reg: Register to test + * @mask: Mask that specifies which bits to test + * @value: Value to test against + * + * Tests a register with a new value and checks if the new value is + * different from the old value. + * + * Return: 1 for change, otherwise 0. + */ +int snd_soc_component_test_bits(struct snd_soc_component *component, + unsigned int reg, unsigned int mask, unsigned int value) +{ + unsigned int old, new; + int ret; + + ret = snd_soc_component_read(component, reg, &old); + if (ret < 0) + return soc_component_ret(component, ret); + new = (old & ~mask) | value; + return old != new; +} +EXPORT_SYMBOL_GPL(snd_soc_component_test_bits); + int snd_soc_pcm_component_pointer(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; diff --git a/sound/soc/soc-io.c b/sound/soc/soc-io.c deleted file mode 100644 index 1ff9175e9d5e..000000000000 --- a/sound/soc/soc-io.c +++ /dev/null @@ -1,202 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -// -// soc-io.c -- ASoC register I/O helpers -// -// Copyright 2009-2011 Wolfson Microelectronics PLC. -// -// Author: Mark Brown <broonie@opensource.wolfsonmicro.com> - -#include <linux/i2c.h> -#include <linux/spi/spi.h> -#include <linux/regmap.h> -#include <linux/export.h> -#include <sound/soc.h> - -/** - * snd_soc_component_read() - Read register value - * @component: Component to read from - * @reg: Register to read - * @val: Pointer to where the read value is stored - * - * Return: 0 on success, a negative error code otherwise. - */ -int snd_soc_component_read(struct snd_soc_component *component, - unsigned int reg, unsigned int *val) -{ - int ret; - - if (component->regmap) - ret = regmap_read(component->regmap, reg, val); - else if (component->driver->read) { - *val = component->driver->read(component, reg); - ret = 0; - } - else - ret = -EIO; - - return ret; -} -EXPORT_SYMBOL_GPL(snd_soc_component_read); - -unsigned int snd_soc_component_read32(struct snd_soc_component *component, - unsigned int reg) -{ - unsigned int val; - int ret; - - ret = snd_soc_component_read(component, reg, &val); - if (ret < 0) - return -1; - - return val; -} -EXPORT_SYMBOL_GPL(snd_soc_component_read32); - -/** - * snd_soc_component_write() - Write register value - * @component: Component to write to - * @reg: Register to write - * @val: Value to write to the register - * - * Return: 0 on success, a negative error code otherwise. - */ -int snd_soc_component_write(struct snd_soc_component *component, - unsigned int reg, unsigned int val) -{ - if (component->regmap) - return regmap_write(component->regmap, reg, val); - else if (component->driver->write) - return component->driver->write(component, reg, val); - else - return -EIO; -} -EXPORT_SYMBOL_GPL(snd_soc_component_write); - -static int snd_soc_component_update_bits_legacy( - struct snd_soc_component *component, unsigned int reg, - unsigned int mask, unsigned int val, bool *change) -{ - unsigned int old, new; - int ret; - - mutex_lock(&component->io_mutex); - - ret = snd_soc_component_read(component, reg, &old); - if (ret < 0) - goto out_unlock; - - new = (old & ~mask) | (val & mask); - *change = old != new; - if (*change) - ret = snd_soc_component_write(component, reg, new); -out_unlock: - mutex_unlock(&component->io_mutex); - - return ret; -} - -/** - * snd_soc_component_update_bits() - Perform read/modify/write cycle - * @component: Component to update - * @reg: Register to update - * @mask: Mask that specifies which bits to update - * @val: New value for the bits specified by mask - * - * Return: 1 if the operation was successful and the value of the register - * changed, 0 if the operation was successful, but the value did not change. - * Returns a negative error code otherwise. - */ -int snd_soc_component_update_bits(struct snd_soc_component *component, - unsigned int reg, unsigned int mask, unsigned int val) -{ - bool change; - int ret; - - if (component->regmap) - ret = regmap_update_bits_check(component->regmap, reg, mask, - val, &change); - else - ret = snd_soc_component_update_bits_legacy(component, reg, - mask, val, &change); - - if (ret < 0) - return ret; - return change; -} -EXPORT_SYMBOL_GPL(snd_soc_component_update_bits); - -/** - * snd_soc_component_update_bits_async() - Perform asynchronous - * read/modify/write cycle - * @component: Component to update - * @reg: Register to update - * @mask: Mask that specifies which bits to update - * @val: New value for the bits specified by mask - * - * This function is similar to snd_soc_component_update_bits(), but the update - * operation is scheduled asynchronously. This means it may not be completed - * when the function returns. To make sure that all scheduled updates have been - * completed snd_soc_component_async_complete() must be called. - * - * Return: 1 if the operation was successful and the value of the register - * changed, 0 if the operation was successful, but the value did not change. - * Returns a negative error code otherwise. - */ -int snd_soc_component_update_bits_async(struct snd_soc_component *component, - unsigned int reg, unsigned int mask, unsigned int val) -{ - bool change; - int ret; - - if (component->regmap) - ret = regmap_update_bits_check_async(component->regmap, reg, - mask, val, &change); - else - ret = snd_soc_component_update_bits_legacy(component, reg, - mask, val, &change); - - if (ret < 0) - return ret; - return change; -} -EXPORT_SYMBOL_GPL(snd_soc_component_update_bits_async); - -/** - * snd_soc_component_async_complete() - Ensure asynchronous I/O has completed - * @component: Component for which to wait - * - * This function blocks until all asynchronous I/O which has previously been - * scheduled using snd_soc_component_update_bits_async() has completed. - */ -void snd_soc_component_async_complete(struct snd_soc_component *component) -{ - if (component->regmap) - regmap_async_complete(component->regmap); -} -EXPORT_SYMBOL_GPL(snd_soc_component_async_complete); - -/** - * snd_soc_component_test_bits - Test register for change - * @component: component - * @reg: Register to test - * @mask: Mask that specifies which bits to test - * @value: Value to test against - * - * Tests a register with a new value and checks if the new value is - * different from the old value. - * - * Return: 1 for change, otherwise 0. - */ -int snd_soc_component_test_bits(struct snd_soc_component *component, - unsigned int reg, unsigned int mask, unsigned int value) -{ - unsigned int old, new; - int ret; - - ret = snd_soc_component_read(component, reg, &old); - if (ret < 0) - return ret; - new = (old & ~mask) | value; - return old != new; -} -EXPORT_SYMBOL_GPL(snd_soc_component_test_bits); |