diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/soc/codecs/max9768.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/soc/codecs/max9768.c | 247 |
1 files changed, 0 insertions, 247 deletions
diff --git a/ANDROID_3.4.5/sound/soc/codecs/max9768.c b/ANDROID_3.4.5/sound/soc/codecs/max9768.c deleted file mode 100644 index 17b3ec2d..00000000 --- a/ANDROID_3.4.5/sound/soc/codecs/max9768.c +++ /dev/null @@ -1,247 +0,0 @@ -/* - * MAX9768 AMP driver - * - * Copyright (C) 2011, 2012 by Wolfram Sang, Pengutronix e.K. - * - * 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; version 2 of the License. - */ - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/i2c.h> -#include <linux/slab.h> -#include <linux/gpio.h> -#include <linux/regmap.h> - -#include <sound/core.h> -#include <sound/soc.h> -#include <sound/tlv.h> -#include <sound/max9768.h> - -/* "Registers" */ -#define MAX9768_VOL 0 -#define MAX9768_CTRL 3 - -/* Commands */ -#define MAX9768_CTRL_PWM 0x15 -#define MAX9768_CTRL_FILTERLESS 0x16 - -struct max9768 { - struct regmap *regmap; - int mute_gpio; - int shdn_gpio; - u32 flags; -}; - -static struct reg_default max9768_default_regs[] = { - { 0, 0 }, - { 3, MAX9768_CTRL_FILTERLESS}, -}; - -static int max9768_get_gpio(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - struct max9768 *max9768 = snd_soc_codec_get_drvdata(codec); - int val = gpio_get_value_cansleep(max9768->mute_gpio); - - ucontrol->value.integer.value[0] = !val; - - return 0; -} - -static int max9768_set_gpio(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - struct max9768 *max9768 = snd_soc_codec_get_drvdata(codec); - - gpio_set_value_cansleep(max9768->mute_gpio, !ucontrol->value.integer.value[0]); - - return 0; -} - -static const unsigned int volume_tlv[] = { - TLV_DB_RANGE_HEAD(43), - 0, 0, TLV_DB_SCALE_ITEM(-16150, 0, 0), - 1, 1, TLV_DB_SCALE_ITEM(-9280, 0, 0), - 2, 2, TLV_DB_SCALE_ITEM(-9030, 0, 0), - 3, 3, TLV_DB_SCALE_ITEM(-8680, 0, 0), - 4, 4, TLV_DB_SCALE_ITEM(-8430, 0, 0), - 5, 5, TLV_DB_SCALE_ITEM(-8080, 0, 0), - 6, 6, TLV_DB_SCALE_ITEM(-7830, 0, 0), - 7, 7, TLV_DB_SCALE_ITEM(-7470, 0, 0), - 8, 8, TLV_DB_SCALE_ITEM(-7220, 0, 0), - 9, 9, TLV_DB_SCALE_ITEM(-6870, 0, 0), - 10, 10, TLV_DB_SCALE_ITEM(-6620, 0, 0), - 11, 11, TLV_DB_SCALE_ITEM(-6270, 0, 0), - 12, 12, TLV_DB_SCALE_ITEM(-6020, 0, 0), - 13, 13, TLV_DB_SCALE_ITEM(-5670, 0, 0), - 14, 14, TLV_DB_SCALE_ITEM(-5420, 0, 0), - 15, 17, TLV_DB_SCALE_ITEM(-5060, 250, 0), - 18, 18, TLV_DB_SCALE_ITEM(-4370, 0, 0), - 19, 19, TLV_DB_SCALE_ITEM(-4210, 0, 0), - 20, 20, TLV_DB_SCALE_ITEM(-3960, 0, 0), - 21, 21, TLV_DB_SCALE_ITEM(-3760, 0, 0), - 22, 22, TLV_DB_SCALE_ITEM(-3600, 0, 0), - 23, 23, TLV_DB_SCALE_ITEM(-3340, 0, 0), - 24, 24, TLV_DB_SCALE_ITEM(-3150, 0, 0), - 25, 25, TLV_DB_SCALE_ITEM(-2980, 0, 0), - 26, 26, TLV_DB_SCALE_ITEM(-2720, 0, 0), - 27, 27, TLV_DB_SCALE_ITEM(-2520, 0, 0), - 28, 30, TLV_DB_SCALE_ITEM(-2350, 190, 0), - 31, 31, TLV_DB_SCALE_ITEM(-1750, 0, 0), - 32, 34, TLV_DB_SCALE_ITEM(-1640, 100, 0), - 35, 37, TLV_DB_SCALE_ITEM(-1310, 110, 0), - 38, 39, TLV_DB_SCALE_ITEM(-990, 100, 0), - 40, 40, TLV_DB_SCALE_ITEM(-710, 0, 0), - 41, 41, TLV_DB_SCALE_ITEM(-600, 0, 0), - 42, 42, TLV_DB_SCALE_ITEM(-500, 0, 0), - 43, 43, TLV_DB_SCALE_ITEM(-340, 0, 0), - 44, 44, TLV_DB_SCALE_ITEM(-190, 0, 0), - 45, 45, TLV_DB_SCALE_ITEM(-50, 0, 0), - 46, 46, TLV_DB_SCALE_ITEM(50, 0, 0), - 47, 50, TLV_DB_SCALE_ITEM(120, 40, 0), - 51, 57, TLV_DB_SCALE_ITEM(290, 50, 0), - 58, 58, TLV_DB_SCALE_ITEM(650, 0, 0), - 59, 62, TLV_DB_SCALE_ITEM(700, 60, 0), - 63, 63, TLV_DB_SCALE_ITEM(950, 0, 0), -}; - -static const struct snd_kcontrol_new max9768_volume[] = { - SOC_SINGLE_TLV("Playback Volume", MAX9768_VOL, 0, 63, 0, volume_tlv), -}; - -static const struct snd_kcontrol_new max9768_mute[] = { - SOC_SINGLE_BOOL_EXT("Playback Switch", 0, max9768_get_gpio, max9768_set_gpio), -}; - -static int max9768_probe(struct snd_soc_codec *codec) -{ - struct max9768 *max9768 = snd_soc_codec_get_drvdata(codec); - int ret; - - codec->control_data = max9768->regmap; - ret = snd_soc_codec_set_cache_io(codec, 2, 6, SND_SOC_REGMAP); - if (ret) - return ret; - - if (max9768->flags & MAX9768_FLAG_CLASSIC_PWM) { - ret = snd_soc_write(codec, MAX9768_CTRL, MAX9768_CTRL_PWM); - if (ret) - return ret; - } - - if (gpio_is_valid(max9768->mute_gpio)) { - ret = snd_soc_add_codec_controls(codec, max9768_mute, - ARRAY_SIZE(max9768_mute)); - if (ret) - return ret; - } - - return 0; -} - -static struct snd_soc_codec_driver max9768_codec_driver = { - .probe = max9768_probe, - .controls = max9768_volume, - .num_controls = ARRAY_SIZE(max9768_volume), -}; - -static const struct regmap_config max9768_i2c_regmap_config = { - .reg_bits = 2, - .val_bits = 6, - .max_register = 3, - .reg_defaults = max9768_default_regs, - .num_reg_defaults = ARRAY_SIZE(max9768_default_regs), - .cache_type = REGCACHE_RBTREE, -}; - -static int __devinit max9768_i2c_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - struct max9768 *max9768; - struct max9768_pdata *pdata = client->dev.platform_data; - int err; - - max9768 = devm_kzalloc(&client->dev, sizeof(*max9768), GFP_KERNEL); - if (!max9768) - return -ENOMEM; - - if (pdata) { - /* Mute on powerup to avoid clicks */ - err = gpio_request_one(pdata->mute_gpio, GPIOF_INIT_HIGH, "MAX9768 Mute"); - max9768->mute_gpio = err ?: pdata->mute_gpio; - - /* Activate chip by releasing shutdown, enables I2C */ - err = gpio_request_one(pdata->shdn_gpio, GPIOF_INIT_HIGH, "MAX9768 Shutdown"); - max9768->shdn_gpio = err ?: pdata->shdn_gpio; - - max9768->flags = pdata->flags; - } else { - max9768->shdn_gpio = -EINVAL; - max9768->mute_gpio = -EINVAL; - } - - i2c_set_clientdata(client, max9768); - - max9768->regmap = regmap_init_i2c(client, &max9768_i2c_regmap_config); - if (IS_ERR(max9768->regmap)) { - err = PTR_ERR(max9768->regmap); - goto err_gpio_free; - } - - err = snd_soc_register_codec(&client->dev, &max9768_codec_driver, NULL, 0); - if (err) - goto err_regmap_free; - - return 0; - - err_regmap_free: - regmap_exit(max9768->regmap); - err_gpio_free: - if (gpio_is_valid(max9768->shdn_gpio)) - gpio_free(max9768->shdn_gpio); - if (gpio_is_valid(max9768->mute_gpio)) - gpio_free(max9768->mute_gpio); - - return err; -} - -static int __devexit max9768_i2c_remove(struct i2c_client *client) -{ - struct max9768 *max9768 = i2c_get_clientdata(client); - - snd_soc_unregister_codec(&client->dev); - regmap_exit(max9768->regmap); - - if (gpio_is_valid(max9768->shdn_gpio)) - gpio_free(max9768->shdn_gpio); - if (gpio_is_valid(max9768->mute_gpio)) - gpio_free(max9768->mute_gpio); - - return 0; -} - -static const struct i2c_device_id max9768_i2c_id[] = { - { "max9768", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, max9768_i2c_id); - -static struct i2c_driver max9768_i2c_driver = { - .driver = { - .name = "max9768", - .owner = THIS_MODULE, - }, - .probe = max9768_i2c_probe, - .remove = __devexit_p(max9768_i2c_remove), - .id_table = max9768_i2c_id, -}; -module_i2c_driver(max9768_i2c_driver); - -MODULE_AUTHOR("Wolfram Sang <w.sang@pengutronix.de>"); -MODULE_DESCRIPTION("ASoC MAX9768 amplifier driver"); -MODULE_LICENSE("GPL v2"); |