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android_kernel_cmhtcleo/arch/arm/mach-msm/board-htcleo-audio.c
tytung ca26744fe2 htcleo: audio: add proc file interface /proc/mic_level and fix mic gain (Credits to mdebeljuh and jdivic) 
Apply the diff file from http://forum.xda-developers.com/showpost.php?p=17031938&postcount=97
Disable debug output and fix typo by tytung.

Usage: echo 'device_id level' > /proc/mic_level
Level range: 0-1000; -1 use level from acdb
Current levels (device_id):
HANDSET (0): -1
SPKR_PHONE (1): -1
HEADSET (2): -1
TTY_HEADSET (3): -1
BT_SCO (4): -1
2011-08-29 22:07:47 +08:00

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/* arch/arm/mach-msm/board-htcleo-audio.c
*
* Copyright (C) 2010 Cotulla
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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.
*
*/
#include <linux/gpio.h>
#include <linux/delay.h>
#if defined(CONFIG_USING_BRAVOS_DSP)
#include <mach/msm_qdsp6_audio.h>
#else
#include <mach/msm_qdsp6_audio_1550.h>
#endif
#include <mach/htc_acoustic_qsd.h>
#include <asm/gpio.h>
#include <mach/gpio.h>
#include <mach/htc_headset_mgr.h>
#include "board-htcleo.h"
#include "devices.h"
#include "dex_comm.h"
#include "proc_comm.h"
#include "pmic.h"
#include <linux/proc_fs.h>
#include <asm/uaccess.h>
#define PROCFS_MAX_SIZE 1024
#define PROCFS_NAME "mic_level"
#if 1
#define D(fmt, args...) printk(KERN_INFO "Audio: "fmt, ##args)
#else
#define D(fmt, args...) do {} while (0)
#endif
static struct proc_dir_entry* mic_gain_file;
static struct mutex mic_lock;
static struct mutex bt_sco_lock;
#if 1
// LEO
static struct q6_hw_info q6_audio_hw[Q6_HW_COUNT] =
{
[Q6_HW_HANDSET] =
{
.min_gain = -2000,
.max_gain = 600,
},
[Q6_HW_HEADSET] =
{
.min_gain = -2000,
.max_gain = 600,
},
[Q6_HW_SPEAKER] =
{
.min_gain = -1500,
.max_gain = 500,
},
[Q6_HW_TTY] =
{
.min_gain = -2000,
.max_gain = 600,
},
[Q6_HW_BT_SCO] =
{
.min_gain = -1100,
.max_gain = 400,
},
[Q6_HW_BT_A2DP] =
{
.min_gain = -1100,
.max_gain = 400,
},
};
#else
// old desire one
static struct q6_hw_info q6_audio_hw[Q6_HW_COUNT] =
{
[Q6_HW_HANDSET] = {
.min_gain = -2000,
.max_gain = 0,
},
[Q6_HW_HEADSET] = {
.min_gain = -2000,
.max_gain = 0,
},
[Q6_HW_SPEAKER] = {
.min_gain = -1500,
.max_gain = 0,
},
[Q6_HW_TTY] = {
.min_gain = -2000,
.max_gain = 0,
},
[Q6_HW_BT_SCO] = {
.min_gain = -2000,
.max_gain = 0,
},
[Q6_HW_BT_A2DP] = {
.min_gain = -2000,
.max_gain = 0,
},
};
#endif
//-----------proc file interface--------------------------------
/**
* This function is called then the /proc file is read
*
*/
int
mic_level_read(char *buffer,
char **buffer_location,
off_t offset, int buffer_length, int *eof, void *data)
{
int ret;
char temp_buff[1024];
printk(KERN_INFO "mic_level_read (/proc/%s) called\n", PROCFS_NAME);
if (offset > 0) {
/* we have finished to read, return 0 */
ret = 0;
} else {
/* fill the buffer, return the buffer size */
sprintf(buffer, "Usage: echo 'device_id level' > /proc/mic_level\n");
strcat(buffer, "Level range: 0-1000; -1 use level from acdb\n");
strcat(buffer, "Current levels (device_id):\n");
sprintf(temp_buff, "HANDSET (%d): %d\n", DEVICE_ID_HANDSET_MIC, q6audio_get_tx_dev_volume(DEVICE_ID_HANDSET_MIC));
strcat(buffer, temp_buff);
sprintf(temp_buff, "SPKR_PHONE (%d): %d\n", DEVICE_ID_SPKR_PHONE_MIC, q6audio_get_tx_dev_volume(DEVICE_ID_SPKR_PHONE_MIC));
strcat(buffer, temp_buff);
sprintf(temp_buff, "HEADSET (%d): %d\n", DEVICE_ID_HEADSET_MIC, q6audio_get_tx_dev_volume(DEVICE_ID_HEADSET_MIC));
strcat(buffer, temp_buff);
sprintf(temp_buff, "TTY_HEADSET (%d): %d\n", DEVICE_ID_TTY_HEADSET_MIC, q6audio_get_tx_dev_volume(DEVICE_ID_TTY_HEADSET_MIC));
strcat(buffer, temp_buff);
sprintf(temp_buff, "BT_SCO (%d): %d\n", DEVICE_ID_BT_SCO_MIC, q6audio_get_tx_dev_volume(DEVICE_ID_BT_SCO_MIC));
strcat(buffer, temp_buff);
ret = strlen(buffer);
}
return ret;
}
/**
* This function is called with the /proc file is written
*
*/
int mic_level_write(struct file *file, const char *buffer, unsigned long count,
void *data)
{
char temp_buff[512];
int device_id=0, level=0, ret, procfs_buffer_size;
/* get buffer size */
procfs_buffer_size = count;
if (procfs_buffer_size > 512 ) {
procfs_buffer_size = 512;
}
/* write data to the buffer */
if ( copy_from_user(temp_buff, buffer, procfs_buffer_size) ) {
return -EFAULT;
}
sscanf(temp_buff, "%d %d", &device_id, &level);
ret = q6audio_set_tx_dev_volume(device_id, level);
if (ret<0)
return -EFAULT;
procfs_buffer_size=strlen(temp_buff);
return procfs_buffer_size;
}
//--------------------------------------------------------------
void htcleo_headset_enable(int en)
{
D("%s %d\n", __func__, en);
/* enable audio amp */
if (en) mdelay(60);
gpio_set_value(HTCLEO_AUD_JACKHP_EN, !!en);
}
void htcleo_speaker_enable(int en)
{
struct spkr_config_mode scm;
memset(&scm, 0, sizeof(scm));
D("%s %d\n", __func__, en);
if (en)
{
scm.is_right_chan_en = 0;
scm.is_left_chan_en = 1;
scm.is_stereo_en = 0;
scm.is_hpf_en = 0; //1; // CotullaTODO: check it
pmic_spkr_en_mute(LEFT_SPKR, 0);
pmic_spkr_en_mute(RIGHT_SPKR, 0);
pmic_set_spkr_configuration(&scm);
pmic_spkr_set_mux_hpf_corner_freq(SPKR_FREQ_0_76KHZ);
pmic_spkr_en(LEFT_SPKR, 1);
pmic_spkr_en(RIGHT_SPKR, 0);
pmic_spkr_en_hpf(ON_CMD); // +LEO
/* unmute */
pmic_spkr_en_mute(LEFT_SPKR, 1);
mdelay(40);
}
else
{
pmic_spkr_en_mute(LEFT_SPKR, 0);
pmic_spkr_en_hpf(OFF_CMD); // +LEO
pmic_spkr_en(LEFT_SPKR, 0);
pmic_spkr_en(RIGHT_SPKR, 0);
pmic_set_spkr_configuration(&scm);
}
}
void htcleo_receiver_enable(int en)
{
// if (is_cdma_version(system_rev) &&
// ((system_rev == 0xC1) || (system_rev == 0xC2))) {
struct spkr_config_mode scm;
memset(&scm, 0, sizeof(scm));
D("%s %d\n", __func__, en);
if (en)
{
scm.is_right_chan_en = 1;
scm.is_left_chan_en = 0;
scm.is_stereo_en = 0;
scm.is_hpf_en = 1;
pmic_spkr_en_mute(RIGHT_SPKR, 0);
pmic_set_spkr_configuration(&scm);
pmic_spkr_en(RIGHT_SPKR, 1);
/* unmute */
pmic_spkr_en_mute(RIGHT_SPKR, 1);
}
else
{
pmic_spkr_en_mute(RIGHT_SPKR, 0);
pmic_spkr_en(RIGHT_SPKR, 0);
pmic_set_spkr_configuration(&scm);
}
// }
}
static uint32_t bt_sco_enable[] =
{
PCOM_GPIO_CFG(HTCLEO_BT_PCM_OUT, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA),
PCOM_GPIO_CFG(HTCLEO_BT_PCM_IN, 1, GPIO_INPUT, GPIO_NO_PULL, GPIO_2MA),
PCOM_GPIO_CFG(HTCLEO_BT_PCM_SYNC, 2, GPIO_INPUT, GPIO_NO_PULL, GPIO_2MA),
PCOM_GPIO_CFG(HTCLEO_BT_PCM_CLK, 2, GPIO_INPUT, GPIO_NO_PULL, GPIO_2MA)
};
static uint32_t bt_sco_disable[] =
{
PCOM_GPIO_CFG(HTCLEO_BT_PCM_OUT, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA),
PCOM_GPIO_CFG(HTCLEO_BT_PCM_IN, 0, GPIO_INPUT, GPIO_NO_PULL, GPIO_2MA),
PCOM_GPIO_CFG(HTCLEO_BT_PCM_SYNC, 0, GPIO_INPUT, GPIO_NO_PULL, GPIO_2MA),
PCOM_GPIO_CFG(HTCLEO_BT_PCM_CLK, 0, GPIO_INPUT, GPIO_NO_PULL, GPIO_2MA)
};
void htcleo_bt_sco_enable(int en)
{
static int bt_sco_refcount;
D("%s %d\n", __func__, en);
mutex_lock(&bt_sco_lock);
if (en)
{
if (++bt_sco_refcount == 1)
{
config_gpio_table(bt_sco_enable, ARRAY_SIZE(bt_sco_enable));
}
}
else
{
if (--bt_sco_refcount == 0)
{
config_gpio_table(bt_sco_disable, ARRAY_SIZE(bt_sco_disable));
gpio_set_value(HTCLEO_BT_PCM_OUT, 0);
}
}
mutex_unlock(&bt_sco_lock);
}
void htcleo_mic_enable(int en)
{
static int old_state = 0, new_state = 0;
D("%s %d\n", __func__, en);
mutex_lock(&mic_lock);
if (!!en)
new_state++;
else
new_state--;
if (new_state == 1 && old_state == 0)
{
gpio_set_value(HTCLEO_AUD_2V5_EN, 1);
mdelay(60);
}
else if (new_state == 0 && old_state == 1)
{
gpio_set_value(HTCLEO_AUD_2V5_EN, 0);
}
else
{
D("%s: do nothing %d %d\n", __func__, old_state, new_state);
}
old_state = new_state;
mutex_unlock(&mic_lock);
}
void htcleo_analog_init(void)
{
D("%s\n", __func__);
/* stereo pmic init */
pmic_spkr_set_gain(LEFT_SPKR, SPKR_GAIN_PLUS12DB);
pmic_spkr_set_gain(RIGHT_SPKR, SPKR_GAIN_PLUS12DB);
pmic_spkr_en_right_chan(OFF_CMD);
pmic_spkr_en_left_chan(OFF_CMD);
pmic_spkr_add_right_left_chan(OFF_CMD);
pmic_spkr_en_stereo(OFF_CMD);
pmic_spkr_select_usb_with_hpf_20hz(OFF_CMD);
pmic_spkr_bypass_mux(OFF_CMD);
pmic_spkr_en_hpf(OFF_CMD);
pmic_spkr_en_sink_curr_from_ref_volt_cir(OFF_CMD);
pmic_spkr_set_mux_hpf_corner_freq(SPKR_FREQ_0_76KHZ);
pmic_mic_set_volt(MIC_VOLT_1_80V);
gpio_request(HTCLEO_AUD_JACKHP_EN, "aud_jackhp_en");
gpio_request(HTCLEO_BT_PCM_OUT, "bt_pcm_out");
gpio_direction_output(HTCLEO_AUD_JACKHP_EN, 0);
mutex_lock(&bt_sco_lock);
config_gpio_table(bt_sco_disable, ARRAY_SIZE(bt_sco_disable));
gpio_direction_output(HTCLEO_BT_PCM_OUT, 0);
mutex_unlock(&bt_sco_lock);
}
int htcleo_get_rx_vol(uint8_t hw, int level)
{
int vol;
if (level > 100)
level = 100;
else if (level < 0)
level = 0;
// TODO: is it correct?
struct q6_hw_info *info;
info = &q6_audio_hw[hw];
vol = info->min_gain + ((info->max_gain - info->min_gain) * level) / 100;
D("%s %d\n", __func__, vol);
return vol;
}
static struct qsd_acoustic_ops acoustic =
{
.enable_mic_bias = htcleo_mic_enable,
};
static struct q6audio_analog_ops ops =
{
.init = htcleo_analog_init,
.speaker_enable = htcleo_speaker_enable,
.headset_enable = htcleo_headset_enable,
.receiver_enable = htcleo_receiver_enable,
.bt_sco_enable = htcleo_bt_sco_enable,
.int_mic_enable = htcleo_mic_enable,
.ext_mic_enable = htcleo_mic_enable,
.get_rx_vol = htcleo_get_rx_vol,
};
static void hs_mic_register(void)
{
struct headset_notifier notifier;
notifier.id = HEADSET_REG_MIC_BIAS;
notifier.func = htcleo_mic_enable;
headset_notifier_register(&notifier);
}
void __init htcleo_audio_init(void)
{
mutex_init(&mic_lock);
mutex_init(&bt_sco_lock);
q6audio_register_analog_ops(&ops);
acoustic_register_ops(&acoustic);
hs_mic_register();
mic_gain_file = create_proc_entry(PROCFS_NAME, 0644, NULL);
if (mic_gain_file == NULL) {
remove_proc_entry(PROCFS_NAME, NULL);
printk(KERN_ALERT "Error: Could not initialize /proc/%s\n",
PROCFS_NAME);
return;
}
mic_gain_file->read_proc = mic_level_read;
mic_gain_file->write_proc = mic_level_write;
//mic_gain_file->mode = S_IFREG | S_IRUGO;
mic_gain_file->uid = 0;
mic_gain_file->gid = 0;
printk(KERN_INFO "/proc/%s created\n", PROCFS_NAME);
// q6audio_set_acdb_file("default_PMIC.acdb");
}
// END OF FILE
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