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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/sound/soc/codecs/tpa6130a2.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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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/codecs/tpa6130a2.c')
-rw-r--r--ANDROID_3.4.5/sound/soc/codecs/tpa6130a2.c505
1 files changed, 0 insertions, 505 deletions
diff --git a/ANDROID_3.4.5/sound/soc/codecs/tpa6130a2.c b/ANDROID_3.4.5/sound/soc/codecs/tpa6130a2.c
deleted file mode 100644
index 6fe4aa3a..00000000
--- a/ANDROID_3.4.5/sound/soc/codecs/tpa6130a2.c
+++ /dev/null
@@ -1,505 +0,0 @@
-/*
- * ALSA SoC Texas Instruments TPA6130A2 headset stereo amplifier driver
- *
- * Copyright (C) Nokia Corporation
- *
- * Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
- *
- * 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 distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- */
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/device.h>
-#include <linux/i2c.h>
-#include <linux/gpio.h>
-#include <linux/regulator/consumer.h>
-#include <linux/slab.h>
-#include <sound/tpa6130a2-plat.h>
-#include <sound/soc.h>
-#include <sound/tlv.h>
-
-#include "tpa6130a2.h"
-
-enum tpa_model {
- TPA6130A2,
- TPA6140A2,
-};
-
-static struct i2c_client *tpa6130a2_client;
-
-/* This struct is used to save the context */
-struct tpa6130a2_data {
- struct mutex mutex;
- unsigned char regs[TPA6130A2_CACHEREGNUM];
- struct regulator *supply;
- int power_gpio;
- u8 power_state:1;
- enum tpa_model id;
-};
-
-static int tpa6130a2_i2c_read(int reg)
-{
- struct tpa6130a2_data *data;
- int val;
-
- BUG_ON(tpa6130a2_client == NULL);
- data = i2c_get_clientdata(tpa6130a2_client);
-
- /* If powered off, return the cached value */
- if (data->power_state) {
- val = i2c_smbus_read_byte_data(tpa6130a2_client, reg);
- if (val < 0)
- dev_err(&tpa6130a2_client->dev, "Read failed\n");
- else
- data->regs[reg] = val;
- } else {
- val = data->regs[reg];
- }
-
- return val;
-}
-
-static int tpa6130a2_i2c_write(int reg, u8 value)
-{
- struct tpa6130a2_data *data;
- int val = 0;
-
- BUG_ON(tpa6130a2_client == NULL);
- data = i2c_get_clientdata(tpa6130a2_client);
-
- if (data->power_state) {
- val = i2c_smbus_write_byte_data(tpa6130a2_client, reg, value);
- if (val < 0) {
- dev_err(&tpa6130a2_client->dev, "Write failed\n");
- return val;
- }
- }
-
- /* Either powered on or off, we save the context */
- data->regs[reg] = value;
-
- return val;
-}
-
-static u8 tpa6130a2_read(int reg)
-{
- struct tpa6130a2_data *data;
-
- BUG_ON(tpa6130a2_client == NULL);
- data = i2c_get_clientdata(tpa6130a2_client);
-
- return data->regs[reg];
-}
-
-static int tpa6130a2_initialize(void)
-{
- struct tpa6130a2_data *data;
- int i, ret = 0;
-
- BUG_ON(tpa6130a2_client == NULL);
- data = i2c_get_clientdata(tpa6130a2_client);
-
- for (i = 1; i < TPA6130A2_REG_VERSION; i++) {
- ret = tpa6130a2_i2c_write(i, data->regs[i]);
- if (ret < 0)
- break;
- }
-
- return ret;
-}
-
-static int tpa6130a2_power(u8 power)
-{
- struct tpa6130a2_data *data;
- u8 val;
- int ret = 0;
-
- BUG_ON(tpa6130a2_client == NULL);
- data = i2c_get_clientdata(tpa6130a2_client);
-
- mutex_lock(&data->mutex);
- if (power == data->power_state)
- goto exit;
-
- if (power) {
- ret = regulator_enable(data->supply);
- if (ret != 0) {
- dev_err(&tpa6130a2_client->dev,
- "Failed to enable supply: %d\n", ret);
- goto exit;
- }
- /* Power on */
- if (data->power_gpio >= 0)
- gpio_set_value(data->power_gpio, 1);
-
- data->power_state = 1;
- ret = tpa6130a2_initialize();
- if (ret < 0) {
- dev_err(&tpa6130a2_client->dev,
- "Failed to initialize chip\n");
- if (data->power_gpio >= 0)
- gpio_set_value(data->power_gpio, 0);
- regulator_disable(data->supply);
- data->power_state = 0;
- goto exit;
- }
- } else {
- /* set SWS */
- val = tpa6130a2_read(TPA6130A2_REG_CONTROL);
- val |= TPA6130A2_SWS;
- tpa6130a2_i2c_write(TPA6130A2_REG_CONTROL, val);
-
- /* Power off */
- if (data->power_gpio >= 0)
- gpio_set_value(data->power_gpio, 0);
-
- ret = regulator_disable(data->supply);
- if (ret != 0) {
- dev_err(&tpa6130a2_client->dev,
- "Failed to disable supply: %d\n", ret);
- goto exit;
- }
-
- data->power_state = 0;
- }
-
-exit:
- mutex_unlock(&data->mutex);
- return ret;
-}
-
-static int tpa6130a2_get_volsw(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- struct soc_mixer_control *mc =
- (struct soc_mixer_control *)kcontrol->private_value;
- struct tpa6130a2_data *data;
- unsigned int reg = mc->reg;
- unsigned int shift = mc->shift;
- int max = mc->max;
- unsigned int mask = (1 << fls(max)) - 1;
- unsigned int invert = mc->invert;
-
- BUG_ON(tpa6130a2_client == NULL);
- data = i2c_get_clientdata(tpa6130a2_client);
-
- mutex_lock(&data->mutex);
-
- ucontrol->value.integer.value[0] =
- (tpa6130a2_read(reg) >> shift) & mask;
-
- if (invert)
- ucontrol->value.integer.value[0] =
- max - ucontrol->value.integer.value[0];
-
- mutex_unlock(&data->mutex);
- return 0;
-}
-
-static int tpa6130a2_put_volsw(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- struct soc_mixer_control *mc =
- (struct soc_mixer_control *)kcontrol->private_value;
- struct tpa6130a2_data *data;
- unsigned int reg = mc->reg;
- unsigned int shift = mc->shift;
- int max = mc->max;
- unsigned int mask = (1 << fls(max)) - 1;
- unsigned int invert = mc->invert;
- unsigned int val = (ucontrol->value.integer.value[0] & mask);
- unsigned int val_reg;
-
- BUG_ON(tpa6130a2_client == NULL);
- data = i2c_get_clientdata(tpa6130a2_client);
-
- if (invert)
- val = max - val;
-
- mutex_lock(&data->mutex);
-
- val_reg = tpa6130a2_read(reg);
- if (((val_reg >> shift) & mask) == val) {
- mutex_unlock(&data->mutex);
- return 0;
- }
-
- val_reg &= ~(mask << shift);
- val_reg |= val << shift;
- tpa6130a2_i2c_write(reg, val_reg);
-
- mutex_unlock(&data->mutex);
-
- return 1;
-}
-
-/*
- * TPA6130 volume. From -59.5 to 4 dB with increasing step size when going
- * down in gain.
- */
-static const unsigned int tpa6130_tlv[] = {
- TLV_DB_RANGE_HEAD(10),
- 0, 1, TLV_DB_SCALE_ITEM(-5950, 600, 0),
- 2, 3, TLV_DB_SCALE_ITEM(-5000, 250, 0),
- 4, 5, TLV_DB_SCALE_ITEM(-4550, 160, 0),
- 6, 7, TLV_DB_SCALE_ITEM(-4140, 190, 0),
- 8, 9, TLV_DB_SCALE_ITEM(-3650, 120, 0),
- 10, 11, TLV_DB_SCALE_ITEM(-3330, 160, 0),
- 12, 13, TLV_DB_SCALE_ITEM(-3040, 180, 0),
- 14, 20, TLV_DB_SCALE_ITEM(-2710, 110, 0),
- 21, 37, TLV_DB_SCALE_ITEM(-1960, 74, 0),
- 38, 63, TLV_DB_SCALE_ITEM(-720, 45, 0),
-};
-
-static const struct snd_kcontrol_new tpa6130a2_controls[] = {
- SOC_SINGLE_EXT_TLV("TPA6130A2 Headphone Playback Volume",
- TPA6130A2_REG_VOL_MUTE, 0, 0x3f, 0,
- tpa6130a2_get_volsw, tpa6130a2_put_volsw,
- tpa6130_tlv),
-};
-
-static const unsigned int tpa6140_tlv[] = {
- TLV_DB_RANGE_HEAD(3),
- 0, 8, TLV_DB_SCALE_ITEM(-5900, 400, 0),
- 9, 16, TLV_DB_SCALE_ITEM(-2500, 200, 0),
- 17, 31, TLV_DB_SCALE_ITEM(-1000, 100, 0),
-};
-
-static const struct snd_kcontrol_new tpa6140a2_controls[] = {
- SOC_SINGLE_EXT_TLV("TPA6140A2 Headphone Playback Volume",
- TPA6130A2_REG_VOL_MUTE, 1, 0x1f, 0,
- tpa6130a2_get_volsw, tpa6130a2_put_volsw,
- tpa6140_tlv),
-};
-
-/*
- * Enable or disable channel (left or right)
- * The bit number for mute and amplifier are the same per channel:
- * bit 6: Right channel
- * bit 7: Left channel
- * in both registers.
- */
-static void tpa6130a2_channel_enable(u8 channel, int enable)
-{
- u8 val;
-
- if (enable) {
- /* Enable channel */
- /* Enable amplifier */
- val = tpa6130a2_read(TPA6130A2_REG_CONTROL);
- val |= channel;
- val &= ~TPA6130A2_SWS;
- tpa6130a2_i2c_write(TPA6130A2_REG_CONTROL, val);
-
- /* Unmute channel */
- val = tpa6130a2_read(TPA6130A2_REG_VOL_MUTE);
- val &= ~channel;
- tpa6130a2_i2c_write(TPA6130A2_REG_VOL_MUTE, val);
- } else {
- /* Disable channel */
- /* Mute channel */
- val = tpa6130a2_read(TPA6130A2_REG_VOL_MUTE);
- val |= channel;
- tpa6130a2_i2c_write(TPA6130A2_REG_VOL_MUTE, val);
-
- /* Disable amplifier */
- val = tpa6130a2_read(TPA6130A2_REG_CONTROL);
- val &= ~channel;
- tpa6130a2_i2c_write(TPA6130A2_REG_CONTROL, val);
- }
-}
-
-int tpa6130a2_stereo_enable(struct snd_soc_codec *codec, int enable)
-{
- int ret = 0;
- if (enable) {
- ret = tpa6130a2_power(1);
- if (ret < 0)
- return ret;
- tpa6130a2_channel_enable(TPA6130A2_HP_EN_R | TPA6130A2_HP_EN_L,
- 1);
- } else {
- tpa6130a2_channel_enable(TPA6130A2_HP_EN_R | TPA6130A2_HP_EN_L,
- 0);
- ret = tpa6130a2_power(0);
- }
-
- return ret;
-}
-EXPORT_SYMBOL_GPL(tpa6130a2_stereo_enable);
-
-int tpa6130a2_add_controls(struct snd_soc_codec *codec)
-{
- struct tpa6130a2_data *data;
-
- if (tpa6130a2_client == NULL)
- return -ENODEV;
-
- data = i2c_get_clientdata(tpa6130a2_client);
-
- if (data->id == TPA6140A2)
- return snd_soc_add_codec_controls(codec, tpa6140a2_controls,
- ARRAY_SIZE(tpa6140a2_controls));
- else
- return snd_soc_add_codec_controls(codec, tpa6130a2_controls,
- ARRAY_SIZE(tpa6130a2_controls));
-}
-EXPORT_SYMBOL_GPL(tpa6130a2_add_controls);
-
-static int __devinit tpa6130a2_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct device *dev;
- struct tpa6130a2_data *data;
- struct tpa6130a2_platform_data *pdata;
- const char *regulator;
- int ret;
-
- dev = &client->dev;
-
- if (client->dev.platform_data == NULL) {
- dev_err(dev, "Platform data not set\n");
- dump_stack();
- return -ENODEV;
- }
-
- data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
- if (data == NULL) {
- dev_err(dev, "Can not allocate memory\n");
- return -ENOMEM;
- }
-
- tpa6130a2_client = client;
-
- i2c_set_clientdata(tpa6130a2_client, data);
-
- pdata = client->dev.platform_data;
- data->power_gpio = pdata->power_gpio;
- data->id = id->driver_data;
-
- mutex_init(&data->mutex);
-
- /* Set default register values */
- data->regs[TPA6130A2_REG_CONTROL] = TPA6130A2_SWS;
- data->regs[TPA6130A2_REG_VOL_MUTE] = TPA6130A2_MUTE_R |
- TPA6130A2_MUTE_L;
-
- if (data->power_gpio >= 0) {
- ret = gpio_request(data->power_gpio, "tpa6130a2 enable");
- if (ret < 0) {
- dev_err(dev, "Failed to request power GPIO (%d)\n",
- data->power_gpio);
- goto err_gpio;
- }
- gpio_direction_output(data->power_gpio, 0);
- }
-
- switch (data->id) {
- default:
- dev_warn(dev, "Unknown TPA model (%d). Assuming 6130A2\n",
- data->id);
- case TPA6130A2:
- regulator = "Vdd";
- break;
- case TPA6140A2:
- regulator = "AVdd";
- break;
- }
-
- data->supply = regulator_get(dev, regulator);
- if (IS_ERR(data->supply)) {
- ret = PTR_ERR(data->supply);
- dev_err(dev, "Failed to request supply: %d\n", ret);
- goto err_regulator;
- }
-
- ret = tpa6130a2_power(1);
- if (ret != 0)
- goto err_power;
-
-
- /* Read version */
- ret = tpa6130a2_i2c_read(TPA6130A2_REG_VERSION) &
- TPA6130A2_VERSION_MASK;
- if ((ret != 1) && (ret != 2))
- dev_warn(dev, "UNTESTED version detected (%d)\n", ret);
-
- /* Disable the chip */
- ret = tpa6130a2_power(0);
- if (ret != 0)
- goto err_power;
-
- return 0;
-
-err_power:
- regulator_put(data->supply);
-err_regulator:
- if (data->power_gpio >= 0)
- gpio_free(data->power_gpio);
-err_gpio:
- tpa6130a2_client = NULL;
-
- return ret;
-}
-
-static int __devexit tpa6130a2_remove(struct i2c_client *client)
-{
- struct tpa6130a2_data *data = i2c_get_clientdata(client);
-
- tpa6130a2_power(0);
-
- if (data->power_gpio >= 0)
- gpio_free(data->power_gpio);
-
- regulator_put(data->supply);
- tpa6130a2_client = NULL;
-
- return 0;
-}
-
-static const struct i2c_device_id tpa6130a2_id[] = {
- { "tpa6130a2", TPA6130A2 },
- { "tpa6140a2", TPA6140A2 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, tpa6130a2_id);
-
-static struct i2c_driver tpa6130a2_i2c_driver = {
- .driver = {
- .name = "tpa6130a2",
- .owner = THIS_MODULE,
- },
- .probe = tpa6130a2_probe,
- .remove = __devexit_p(tpa6130a2_remove),
- .id_table = tpa6130a2_id,
-};
-
-static int __init tpa6130a2_init(void)
-{
- return i2c_add_driver(&tpa6130a2_i2c_driver);
-}
-
-static void __exit tpa6130a2_exit(void)
-{
- i2c_del_driver(&tpa6130a2_i2c_driver);
-}
-
-MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>");
-MODULE_DESCRIPTION("TPA6130A2 Headphone amplifier driver");
-MODULE_LICENSE("GPL");
-
-module_init(tpa6130a2_init);
-module_exit(tpa6130a2_exit);