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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/sound/soc/soc-io.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/sound/soc/soc-io.c')
-rw-r--r-- | ANDROID_3.4.5/sound/soc/soc-io.c | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/ANDROID_3.4.5/sound/soc/soc-io.c b/ANDROID_3.4.5/sound/soc/soc-io.c deleted file mode 100644 index 4d8dc6a2..00000000 --- a/ANDROID_3.4.5/sound/soc/soc-io.c +++ /dev/null @@ -1,170 +0,0 @@ -/* - * soc-io.c -- ASoC register I/O helpers - * - * Copyright 2009-2011 Wolfson Microelectronics PLC. - * - * 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 as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -#include <linux/i2c.h> -#include <linux/spi/spi.h> -#include <linux/regmap.h> -#include <linux/export.h> -#include <sound/soc.h> - -#include <trace/events/asoc.h> - -#ifdef CONFIG_REGMAP -static int hw_write(struct snd_soc_codec *codec, unsigned int reg, - unsigned int value) -{ - int ret; - - if (!snd_soc_codec_volatile_register(codec, reg) && - reg < codec->driver->reg_cache_size && - !codec->cache_bypass) { - ret = snd_soc_cache_write(codec, reg, value); - if (ret < 0) - return -1; - } - - if (codec->cache_only) { - codec->cache_sync = 1; - return 0; - } - - return regmap_write(codec->control_data, reg, value); -} - -static unsigned int hw_read(struct snd_soc_codec *codec, unsigned int reg) -{ - int ret; - unsigned int val; - - if (reg >= codec->driver->reg_cache_size || - snd_soc_codec_volatile_register(codec, reg) || - codec->cache_bypass) { - if (codec->cache_only) - return -1; - - ret = regmap_read(codec->control_data, reg, &val); - if (ret == 0) - return val; - else - return -1; - } - - ret = snd_soc_cache_read(codec, reg, &val); - if (ret < 0) - return -1; - return val; -} - -/* Primitive bulk write support for soc-cache. The data pointed to by - * `data' needs to already be in the form the hardware expects. Any - * data written through this function will not go through the cache as - * it only handles writing to volatile or out of bounds registers. - * - * This is currently only supported for devices using the regmap API - * wrappers. - */ -static int snd_soc_hw_bulk_write_raw(struct snd_soc_codec *codec, - unsigned int reg, - const void *data, size_t len) -{ - /* To ensure that we don't get out of sync with the cache, check - * whether the base register is volatile or if we've directly asked - * to bypass the cache. Out of bounds registers are considered - * volatile. - */ - if (!codec->cache_bypass - && !snd_soc_codec_volatile_register(codec, reg) - && reg < codec->driver->reg_cache_size) - return -EINVAL; - - return regmap_raw_write(codec->control_data, reg, data, len); -} - -/** - * snd_soc_codec_set_cache_io: Set up standard I/O functions. - * - * @codec: CODEC to configure. - * @addr_bits: Number of bits of register address data. - * @data_bits: Number of bits of data per register. - * @control: Control bus used. - * - * Register formats are frequently shared between many I2C and SPI - * devices. In order to promote code reuse the ASoC core provides - * some standard implementations of CODEC read and write operations - * which can be set up using this function. - * - * The caller is responsible for allocating and initialising the - * actual cache. - * - * Note that at present this code cannot be used by CODECs with - * volatile registers. - */ -int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec, - int addr_bits, int data_bits, - enum snd_soc_control_type control) -{ - struct regmap_config config; - int ret; - - memset(&config, 0, sizeof(config)); - codec->write = hw_write; - codec->read = hw_read; - codec->bulk_write_raw = snd_soc_hw_bulk_write_raw; - - config.reg_bits = addr_bits; - config.val_bits = data_bits; - - switch (control) { -#if defined(CONFIG_REGMAP_I2C) || defined(CONFIG_REGMAP_I2C_MODULE) - case SND_SOC_I2C: - codec->control_data = regmap_init_i2c(to_i2c_client(codec->dev), - &config); - break; -#endif - -#if defined(CONFIG_REGMAP_SPI) || defined(CONFIG_REGMAP_SPI_MODULE) - case SND_SOC_SPI: - codec->control_data = regmap_init_spi(to_spi_device(codec->dev), - &config); - break; -#endif - - case SND_SOC_REGMAP: - /* Device has made its own regmap arrangements */ - codec->using_regmap = true; - - ret = regmap_get_val_bytes(codec->control_data); - /* Errors are legitimate for non-integer byte multiples */ - if (ret > 0) - codec->val_bytes = ret; - break; - - default: - return -EINVAL; - } - - if (IS_ERR(codec->control_data)) - return PTR_ERR(codec->control_data); - - return 0; -} -EXPORT_SYMBOL_GPL(snd_soc_codec_set_cache_io); -#else -int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec, - int addr_bits, int data_bits, - enum snd_soc_control_type control) -{ - return -ENOTSUPP; -} -EXPORT_SYMBOL_GPL(snd_soc_codec_set_cache_io); -#endif |