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LeafOS / LeafOS-Devices / android_kernel_samsung_universal7904 / 2f162a52c147621b18e45f2a0c4b19476ef3db72 / . / sound / soc / codecs / tfa9896 / tfa98xx.c
blob: a3c261c81576006a66fa513885f93e4e8d4c9717 [file] [log] [blame]
/*
* tfa98xx.c tfa98xx codec module
*
* Copyright (c) 2015 NXP Semiconductors
*
* Author: Sebastien Jan <sjan@baylibre.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.
*/
#define pr_fmt(fmt) "%s(): " fmt, __func__
#include <linux/module.h>
#include <linux/i2c.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <linux/of_gpio.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/firmware.h>
#include <linux/i2c.h>
#include <linux/debugfs.h>
#include <linux/version.h>
#include <linux/input.h>
#include "config.h"
#define I2C_RETRIES 50
#define I2C_RETRY_DELAY 5 /* ms */
/* TODO: remove genregs usage? */
#ifdef N1A
#include "tfa98xx_genregs_N1A12.h"
#else
#include "tfa98xx_genregs_N1C.h"
#endif
#if defined(USE_TFA9891)
#include "tfa9891_genregs.h"
#endif
#include "tfa98xx_tfafieldnames.h"
#include "tfa_internal.h"
#include "tfa.h"
#include "tfa_service.h"
#include "tfa_container.h"
#include "tfa98xx_parameters.h"
#if defined(USE_TFA9896) /* boosting only for Samsung */
#undef TFA_READ_BATTERY_TEMP
#else
#define TFA_READ_BATTERY_TEMP
#endif
#if defined(TFA_READ_BATTERY_TEMP)
#include <linux/power_supply.h>
#endif
#define TFA98XX_VERSION TFA98XX_API_REV_STR
#if defined(TFA_NO_SND_FORMAT_CHECK)
#define TFA_FULL_RATE_SUPPORT_WITH_POST_CONVERSION
#endif
/* Change volume selection behavior:
* Uncomment following line to generate a profile change when updating
* a volume control (also changes to the profile of the modified volume
* control)
*/
/* #define TFA98XX_ALSA_CTRL_PROF_CHG_ON_VOL 1 */
/* Supported rates and data formats */
#if !defined(TFA_FULL_RATE_SUPPORT_WITH_POST_CONVERSION)
#define TFA98XX_RATES SNDRV_PCM_RATE_8000_48000
#else
#define TFA98XX_RATES SNDRV_PCM_RATE_8000_192000
#endif
#define TFA98XX_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
#define TF98XX_MAX_DSP_START_TRY_COUNT 10
#if !defined(USE_TFA9872)
#undef TFA_FORCE_TO_WAIT_UNTIL_CALIBRATE
#else
#define TFA_FORCE_TO_WAIT_UNTIL_CALIBRATE
#endif
#define TFA_CHECK_CALIBRATE_DONE
#define TFA_DBGFS_CHECK_MTPEX
#define XMEM_TAP_ACK 0x0122
#define XMEM_TAP_READ 0x010f
int tfa98xx_log_revision;
int tfa98xx_log_subrevision;
int tfa98xx_log_i2c_devicenum;
int tfa98xx_log_i2c_slaveaddress;
#if defined(TFA_ACTIVATED_ASYNCHRONOUSLY)
static unsigned char ready_to_activate; /* bit mapping with device */
static int pending_pstream[MAX_HANDLES] = {0, 0, 0, 0};
#endif
#if defined(TFA_FULL_RATE_SUPPORT_WITH_POST_CONVERSION)
static unsigned int sr_converted = 48000;
#endif
static LIST_HEAD(profile_list); /* list of user selectable profiles */
static int tfa98xx_kmsg_regs;
static int tfa98xx_ftrace_regs;
static struct tfa98xx *tfa98xx_devices[MAX_HANDLES]
= {NULL, NULL, NULL, NULL};
static int tfa98xx_registered_handles;
static int tfa98xx_vsteps[MAX_HANDLES] = {0, 0, 0, 0};
static int tfa98xx_profile; /* store profile */
static int tfa98xx_prof_vsteps[10] = {0};
/* store vstep per profile (single device) */
static int tfa98xx_mixer_profiles; /* number of user selectable profiles */
static int tfa98xx_mixer_profile; /* current mixer profile */
#if defined(TFADSP_DSP_BUFFER_POOL)
static int buf_pool_size[POOL_MAX_INDEX] = {
#if defined(USE_TFA9896) /* boosting only for Samsung */
8*1024,
8*1024,
8*1024,
1024,
1024,
1024
#else
64*1024,
64*1024,
64*1024,
64*1024,
64*1024,
8*1024
#endif
};
#endif
static DEFINE_MUTEX(probe_lock);
static char *dflt_prof_name = "";
module_param(dflt_prof_name, charp, 0444);
static int no_start;
module_param(no_start, int, 0444);
MODULE_PARM_DESC(no_start, "do not start the work queue; for debugging via user\n");
static int partial_enable;
module_param(partial_enable, int, 0644);
MODULE_PARM_DESC(partial_enable, "enable partial update messaging\n");
static int pcm_sample_format;
module_param(pcm_sample_format, int, 0444);
MODULE_PARM_DESC(pcm_sample_format, "PCM sample format: 0=S16_LE, 1=S24_LE, 2=S32_LE\n");
#if defined(TFA_NO_SND_FORMAT_CHECK)
static int pcm_no_constraint = 1;
#else
static int pcm_no_constraint;
#endif
module_param(pcm_no_constraint, int, 0444);
MODULE_PARM_DESC(pcm_no_constraint, "do not use constraints for PCM parameters\n");
#if defined(USE_TFA9891)
static void tfa98xx_tapdet_check_update(struct tfa98xx *tfa98xx);
#endif
static int tfa98xx_get_fssel(unsigned int rate);
static void tfa98xx_interrupt_enable(struct tfa98xx *tfa98xx, bool enable);
static int get_profile_from_list(char *buf, int id);
static int get_profile_id_for_sr(int id, unsigned int rate);
static int _tfa98xx_mute(struct tfa98xx *tfa98xx, int mute, int stream);
#if defined(TFA_READ_BATTERY_TEMP)
static enum tfa98xx_error tfa98xx_read_battery_temp(int *value);
#endif
struct tfa98xx_rate {
unsigned int rate;
unsigned int fssel;
};
static struct tfa98xx_rate rate_to_fssel[] = {
{ 8000, 0 },
{ 11025, 1 },
{ 12000, 2 },
{ 16000, 3 },
{ 22050, 4 },
{ 24000, 5 },
{ 32000, 6 },
{ 44100, 7 },
{ 48000, 8 },
#if defined(TFA_NO_SND_FORMAT_CHECK)
/* out of range */
{ 64000, 9 },
{ 88200, 10 },
{ 96000, 11 },
{ 176400, 12 },
{ 192000, 13 },
#endif
};
/* Wrapper for tfa start */
static enum tfa_error
tfa98xx_tfa_start(struct tfa98xx *tfa98xx, int next_profile, int *vstep)
{
enum tfa_error err;
err = tfa_start(next_profile, vstep);
#if defined(USE_TFA9891)
/* Check and update tap-detection state (in case of profile change) */
tfa98xx_tapdet_check_update(tfa98xx);
#endif
/* Remove sticky bit by reading it once */
TFA_GET_BF(tfa98xx->handle, NOCLK);
/* A cold start erases the configuration, including interrupts setting.
* Restore it if required
*/
tfa98xx_interrupt_enable(tfa98xx, true);
return err;
}
static int tfa98xx_input_open(struct input_dev *dev)
{
struct tfa98xx *tfa98xx = input_get_drvdata(dev);
dev_dbg(tfa98xx->codec->dev, "opening device file\n");
/* note: open function is called only once by the framework.
* No need to count number of open file instances.
*/
if (tfa98xx->dsp_fw_state != TFA98XX_DSP_FW_OK) {
dev_dbg(&tfa98xx->i2c->dev,
"DSP not loaded, cannot start tap-detection\n");
return -EIO;
}
#if defined(USE_TFA9891)
/* enable tap-detection service */
tfa98xx->tapdet_open = true;
tfa98xx_tapdet_check_update(tfa98xx);
#endif
return 0;
}
static void tfa98xx_input_close(struct input_dev *dev)
{
struct tfa98xx *tfa98xx = input_get_drvdata(dev);
dev_dbg(tfa98xx->codec->dev, "closing device file\n");
/* Note: close function is called if the device is unregistered */
#if defined(USE_TFA9891)
/* disable tap-detection service */
tfa98xx->tapdet_open = false;
tfa98xx_tapdet_check_update(tfa98xx);
#endif
}
static int tfa98xx_register_inputdev(struct tfa98xx *tfa98xx)
{
int err;
struct input_dev *input;
input = input_allocate_device();
if (!input) {
dev_err(tfa98xx->codec->dev,
"Unable to allocate input device\n");
return -ENOMEM;
}
input->evbit[0] = BIT_MASK(EV_KEY);
input->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_0);
input->keybit[BIT_WORD(BTN_1)] |= BIT_MASK(BTN_1);
input->keybit[BIT_WORD(BTN_2)] |= BIT_MASK(BTN_2);
input->keybit[BIT_WORD(BTN_3)] |= BIT_MASK(BTN_3);
input->keybit[BIT_WORD(BTN_4)] |= BIT_MASK(BTN_4);
input->keybit[BIT_WORD(BTN_5)] |= BIT_MASK(BTN_5);
input->keybit[BIT_WORD(BTN_6)] |= BIT_MASK(BTN_6);
input->keybit[BIT_WORD(BTN_7)] |= BIT_MASK(BTN_7);
input->keybit[BIT_WORD(BTN_8)] |= BIT_MASK(BTN_8);
input->keybit[BIT_WORD(BTN_9)] |= BIT_MASK(BTN_9);
input->open = tfa98xx_input_open;
input->close = tfa98xx_input_close;
input->name = "tfa98xx-tapdetect";
input->id.bustype = BUS_I2C;
input_set_drvdata(input, tfa98xx);
err = input_register_device(input);
if (err) {
dev_err(tfa98xx->codec->dev,
"Unable to register input device\n");
goto err_free_dev;
}
dev_dbg(tfa98xx->codec->dev,
"Input device for tap-detection registered: %s\n",
input->name);
tfa98xx->input = input;
return 0;
err_free_dev:
input_free_device(input);
return err;
}
/*
* Check if an input device for tap-detection can and shall be registered.
* Register it if appropriate.
* If already registered, check if still relevant and remove it if necessary.
* unregister: true to request inputdev unregistration.
*/
static void
__tfa98xx_inputdev_check_register(struct tfa98xx *tfa98xx,
bool unregister)
{
bool tap_profile = false;
unsigned int i;
for (i = 0; i < tfa_cont_max_profile(tfa98xx->handle); i++) {
if (strnstr(tfa_cont_profile_name(tfa98xx->handle, i), ".tap",
strlen(tfa_cont_profile_name(tfa98xx->handle, i)))
!= NULL) {
tap_profile = true;
tfa98xx->tapdet_profiles |= 1 << i;
dev_info(tfa98xx->codec->dev,
"found a tap-detection profile (%d - %s)\n",
i, tfa_cont_profile_name(tfa98xx->handle, i));
}
}
/* Check for device support:
* - at device level
* - at container (profile) level
*/
if (!(tfa98xx->flags & TFA98XX_FLAG_TAPDET_AVAILABLE) ||
!tap_profile ||
unregister) {
/* No input device supported or required */
if (tfa98xx->input) {
input_unregister_device(tfa98xx->input);
tfa98xx->input = NULL;
}
return;
}
/* input device required */
if (tfa98xx->input)
dev_info(tfa98xx->codec->dev,
"Input device already registered, skipping\n");
else
tfa98xx_register_inputdev(tfa98xx);
}
static void tfa98xx_inputdev_check_register(struct tfa98xx *tfa98xx)
{
__tfa98xx_inputdev_check_register(tfa98xx, false);
}
static void tfa98xx_inputdev_unregister(struct tfa98xx *tfa98xx)
{
__tfa98xx_inputdev_check_register(tfa98xx, true);
}
#ifdef CONFIG_DEBUG_FS
/* OTC reporting
* Returns the MTP0 OTC bit value
*/
static int tfa98xx_dbgfs_otc_get(void *data, u64 *val)
{
struct i2c_client *i2c = (struct i2c_client *)data;
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c);
struct tfa98xx_control *otc = &(handles_local[tfa98xx->handle]
.dev_ops.controls.otc);
enum tfa98xx_error err, status;
unsigned short value;
mutex_lock(&tfa98xx->dsp_lock);
status = tfa98xx_open(tfa98xx->handle);
if (status) {
mutex_unlock(&tfa98xx->dsp_lock);
return -EBUSY;
}
err = tfa98xx_get_mtp(tfa98xx->handle, &value);
tfa98xx_close(tfa98xx->handle);
mutex_unlock(&tfa98xx->dsp_lock);
if (otc->deferrable) {
if (err != TFA98XX_ERROR_OK && err != TFA98XX_ERROR_NO_CLOCK) {
pr_err("[0x%x] Unable to check DSP access: %d\n",
tfa98xx->i2c->addr, err);
return -EIO;
} else if (err == TFA98XX_ERROR_NO_CLOCK) {
if (otc->rd_valid) {
/* read cached value */
*val = otc->rd_value;
pr_debug("[0x%x] Returning cached value of OTC: %llu\n",
tfa98xx->i2c->addr, *val);
} else {
pr_info("[0x%x] OTC value never read!\n",
tfa98xx->i2c->addr);
return -EIO;
}
return 0;
}
}
*val = (value & TFA98XX_KEY2_PROTECTED_MTP0_MTPOTC_MSK)
>> TFA98XX_KEY2_PROTECTED_MTP0_MTPOTC_POS;
pr_debug("[0x%x] OTC : %d\n", tfa98xx->i2c->addr, value&1);
if (otc->deferrable) {
otc->rd_value = *val;
otc->rd_valid = true;
}
return 0;
}
static int tfa98xx_dbgfs_otc_set(void *data, u64 val)
{
struct i2c_client *i2c = (struct i2c_client *)data;
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c);
struct tfa98xx_control *otc = &(handles_local[tfa98xx->handle]
.dev_ops.controls.otc);
enum tfa98xx_error err, status;
if (val != 0 && val != 1) {
pr_err("[0x%x] Unexpected value %llu\n\n",
tfa98xx->i2c->addr, val);
return -EINVAL;
}
mutex_lock(&tfa98xx->dsp_lock);
status = tfa98xx_open(tfa98xx->handle);
if (status) {
mutex_unlock(&tfa98xx->dsp_lock);
return -EBUSY;
}
err = tfa98xx_set_mtp(tfa98xx->handle,
(val << TFA98XX_KEY2_PROTECTED_MTP0_MTPOTC_POS)
& TFA98XX_KEY2_PROTECTED_MTP0_MTPOTC_MSK,
TFA98XX_KEY2_PROTECTED_MTP0_MTPOTC_MSK);
tfa98xx_close(tfa98xx->handle);
mutex_unlock(&tfa98xx->dsp_lock);
if (otc->deferrable) {
if (err != TFA98XX_ERROR_OK && err != TFA98XX_ERROR_NO_CLOCK) {
pr_err("[0x%x] Unable to check DSP access: %d\n",
tfa98xx->i2c->addr, err);
return -EIO;
} else if (err == TFA98XX_ERROR_NO_CLOCK) {
/* defer OTC */
otc->wr_value = val;
otc->triggered = true;
pr_debug("[0x%x] Deferring write to OTC (%d)\n",
tfa98xx->i2c->addr, otc->wr_value);
return 0;
}
}
/* deferrable: cache the value for subsequent offline read */
if (otc->deferrable) {
otc->rd_value = val;
otc->rd_valid = true;
}
pr_debug("[0x%x] OTC < %llu\n", tfa98xx->i2c->addr, val);
return 0;
}
static int tfa98xx_dbgfs_mtpex_get(void *data, u64 *val)
{
struct i2c_client *i2c = (struct i2c_client *)data;
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c);
enum tfa98xx_error err, status;
unsigned short value;
mutex_lock(&tfa98xx->dsp_lock);
status = tfa98xx_open(tfa98xx->handle);
if (status) {
mutex_unlock(&tfa98xx->dsp_lock);
return -EBUSY;
}
err = tfa98xx_get_mtp(tfa98xx->handle, &value);
tfa98xx_close(tfa98xx->handle);
mutex_unlock(&tfa98xx->dsp_lock);
if (err != TFA98XX_ERROR_OK) {
pr_err("[0x%x] Unable to check DSP access: %d\n",
tfa98xx->i2c->addr, err);
return -EIO;
}
*val = (value & TFA98XX_KEY2_PROTECTED_MTP0_MTPEX_MSK)
>> TFA98XX_KEY2_PROTECTED_MTP0_MTPEX_POS;
pr_debug("[0x%x] MTPEX : %d\n", tfa98xx->i2c->addr, value & 2 >> 1);
return 0;
}
static int tfa98xx_dbgfs_mtpex_set(void *data, u64 val)
{
struct i2c_client *i2c = (struct i2c_client *)data;
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c);
struct tfa98xx_control *mtpex = &(handles_local[tfa98xx->handle]
.dev_ops.controls.mtpex);
enum tfa98xx_error err, status;
if (val != 0) {
pr_err("[0x%x] Can only clear MTPEX (0 value expected)\n",
tfa98xx->i2c->addr);
return -EINVAL;
}
mutex_lock(&tfa98xx->dsp_lock);
status = tfa98xx_open(tfa98xx->handle);
if (status) {
mutex_unlock(&tfa98xx->dsp_lock);
return -EBUSY;
}
err = tfa98xx_set_mtp(tfa98xx->handle, 0,
TFA98XX_KEY2_PROTECTED_MTP0_MTPEX_MSK);
tfa98xx_close(tfa98xx->handle);
mutex_unlock(&tfa98xx->dsp_lock);
if (mtpex->deferrable) {
if (err != TFA98XX_ERROR_OK && err != TFA98XX_ERROR_NO_CLOCK) {
pr_err("[0x%x] Unable to check DSP access: %d\n",
tfa98xx->i2c->addr, err);
return -EIO;
} else if (err == TFA98XX_ERROR_NO_CLOCK) {
/* defer OTC */
mtpex->wr_value = 0;
mtpex->triggered = true;
pr_debug("[0x%x] Deferring write to MTPEX (%d)\n",
tfa98xx->i2c->addr, mtpex->wr_value);
return 0;
}
}
pr_debug("[0x%x] MTPEX < 0\n", tfa98xx->i2c->addr);
return 0;
}
static int tfa98xx_dbgfs_temp_get(void *data, u64 *val)
{
struct i2c_client *i2c = (struct i2c_client *)data;
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c);
enum tfa98xx_error status;
mutex_lock(&tfa98xx->dsp_lock);
status = tfa98xx_open(tfa98xx->handle);
if (status) {
mutex_unlock(&tfa98xx->dsp_lock);
return -EBUSY;
}
*val = tfa98xx_get_exttemp(tfa98xx->handle);
tfa98xx_close(tfa98xx->handle);
mutex_unlock(&tfa98xx->dsp_lock);
pr_debug("[0x%x] TEMP : %llu\n", tfa98xx->i2c->addr, *val);
return 0;
}
static int tfa98xx_dbgfs_temp_set(void *data, u64 val)
{
struct i2c_client *i2c = (struct i2c_client *)data;
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c);
enum tfa98xx_error status;
#if defined(TFA_FORCE_TO_WAIT_UNTIL_CALIBRATE)
struct tfa98xx_control *otc, *mtpex;
#endif /* TFA_FORCE_TO_WAIT_UNTIL_CALIBRATE */
mutex_lock(&tfa98xx->dsp_lock);
status = tfa98xx_open(tfa98xx->handle);
if (status) {
mutex_unlock(&tfa98xx->dsp_lock);
return -EBUSY;
}
#if defined(TFA_FORCE_TO_WAIT_UNTIL_CALIBRATE)
otc = &(handles_local[tfa98xx->handle].dev_ops.controls.otc);
mtpex = &(handles_local[tfa98xx->handle].dev_ops.controls.mtpex);
pr_debug("%s: otc->deferrable:%d, mtpex->deferrable:%d\n",
__func__, otc->deferrable, mtpex->deferrable);
#endif /* TFA_FORCE_TO_WAIT_UNTIL_CALIBRATE */
tfa98xx_set_exttemp(tfa98xx->handle, (short)val);
tfa98xx_close(tfa98xx->handle);
mutex_unlock(&tfa98xx->dsp_lock);
pr_debug("[0x%x] TEMP < %llu\n", tfa98xx->i2c->addr, val);
return 0;
}
#endif /* CONFIG_DEBUG_FS */
/*
* calibration:
* write key phrase to the 'calibration' file to trigger a new calibration
* read the calibration file once to get the calibration result
*/
/* tfa98xx_deferred_calibration_status - from tfa_run_wait_calibration */
void tfa98xx_deferred_calibration_status(tfa98xx_handle_t handle,
int calibrate_done)
{
struct tfa98xx *tfa98xx = tfa98xx_devices[handle];
struct tfa98xx_control *calib = &(handles_local[handle]
.dev_ops.controls.calib);
if (calib->wr_value) {
/* a calibration was programmed from the calibration file
* interface
*/
switch (calibrate_done) {
case 1:
/* calibration complete ! */
calib->wr_value = false; /* calibration over */
calib->rd_valid = true; /* result available */
calib->rd_value = true; /* result valid */
tfa_dsp_get_calibration_impedance(tfa98xx->handle);
tfa98xx->calibrate_done = 1;
wake_up_interruptible(&tfa98xx->wq);
break;
case 0:
pr_info("[0x%x] Calibration not complete, still waiting...\n",
tfa98xx->i2c->addr);
break;
case -1:
pr_info("[0x%x] Calibration failed\n",
tfa98xx->i2c->addr);
calib->wr_value = false; /* calibration over */
calib->rd_valid = true; /* result available */
calib->rd_value = false; /* result not valid */
tfa98xx->calibrate_done = 0;
wake_up_interruptible(&tfa98xx->wq);
break;
default:
pr_info("[0x%x] Unknown calibration status: %d\n",
tfa98xx->i2c->addr, calibrate_done);
}
}
}
#ifdef CONFIG_DEBUG_FS
static ssize_t tfa98xx_dbgfs_start_get(struct file *file,
char __user *user_buf, size_t count, loff_t *ppos)
{
struct i2c_client *i2c = file->private_data;
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c);
struct tfa98xx_control *calib = &(handles_local[tfa98xx->handle]
.dev_ops.controls.calib);
char *str;
int ret;
#if defined(TFA_DBGFS_CHECK_MTPEX)
unsigned short value;
#endif
ret = wait_event_interruptible(tfa98xx->wq, calib->wr_value == false);
if (ret == -ERESTARTSYS) {
/* interrupted by signal */
return ret;
}
#if defined(TFA_DBGFS_CHECK_MTPEX)
if (tfa98xx->calibrate_done && !calib->rd_valid) {
/* calibration is ever done before */
pr_debug("[0x%x] calibration is ever done before",
tfa98xx->i2c->addr);
#if defined(TFA_CHECK_CALIBRATE_DONE)
str = kmalloc(PAGE_SIZE, GFP_KERNEL);
if (!str)
return -ENOMEM;
/* valid calibration data is stored in MTP */
pr_info("[0x%x] Calibration succeeded (already done)\n",
tfa98xx->i2c->addr);
snprintf(str, PAGE_SIZE, "Success\n");
ret = sizeof("Success");
ret = simple_read_from_buffer(user_buf, count, ppos, str, ret);
kfree(str);
return ret;
#endif
}
#endif
if (!calib->rd_valid) {
/* no calibration result available - skip */
pr_debug("[0x%x] no valid calibration data is available",
tfa98xx->i2c->addr);
#if defined(TFA_CHECK_CALIBRATE_DONE)
str = kmalloc(PAGE_SIZE, GFP_KERNEL);
if (!str)
return -ENOMEM;
/* valid calibration data is stored in MTP */
pr_info("[0x%x] Calibration failed (not done yet)\n",
tfa98xx->i2c->addr);
snprintf(str, PAGE_SIZE, "NoCalibration\n");
ret = sizeof("NoCalibration");
ret = simple_read_from_buffer(user_buf, count, ppos, str, ret);
kfree(str);
return ret;
#else
return 0;
#endif
}
#if !defined(TFA_CHECK_CALIBRATE_DONE)
if (calib->rd_value) {
/* Calibration already complete, return result */
str = kmalloc(PAGE_SIZE, GFP_KERNEL);
if (!str)
return -ENOMEM;
ret = print_calibration(tfa98xx->handle, str, PAGE_SIZE);
if (ret < 0) {
kfree(str);
return ret;
}
ret = simple_read_from_buffer(user_buf, count, ppos, str, ret);
pr_debug("[0x%x] %s", tfa98xx->i2c->addr, str);
kfree(str);
calib->rd_value = false;
} else {
/* Calibration failed, return the error code */
const char estr[] = "-1\n";
ret = copy_to_user(user_buf, estr, sizeof(estr));
if (ret)
return -EFAULT;
ret = sizeof(estr);
}
calib->rd_valid = false;
#else
str = kmalloc(PAGE_SIZE, GFP_KERNEL);
if (!str)
return -ENOMEM;
#if defined(TFA_DBGFS_CHECK_MTPEX)
if (!tfa98xx->calibrate_done) {
mutex_lock(&tfa98xx->dsp_lock);
ret = tfa98xx_open(tfa98xx->handle);
if (ret) {
mutex_unlock(&tfa98xx->dsp_lock);
kfree(str);
return -EBUSY;
}
ret = tfa98xx_get_mtp(tfa98xx->handle, &value);
tfa98xx_close(tfa98xx->handle);
mutex_unlock(&tfa98xx->dsp_lock);
if (!ret) {
tfa98xx->calibrate_done =
(value & TFA98XX_KEY2_PROTECTED_MTP0_MTPEX_MSK)
? 1 : 0;
pr_debug("[0x%x] calibrate_done = MTPEX (%d)\n",
tfa98xx->i2c->addr, tfa98xx->calibrate_done);
} else {
pr_debug("[0x%x] error in reading MTPEX\n",
tfa98xx->i2c->addr);
tfa98xx->calibrate_done = 0;
}
}
#endif
if (tfa98xx->calibrate_done) {
pr_info("[0x%x] Calibration Success\n", tfa98xx->i2c->addr);
snprintf(str, PAGE_SIZE, "Success\n");
ret = sizeof("Success");
} else {
pr_info("[0x%x] Calibration Fail\n", tfa98xx->i2c->addr);
snprintf(str, PAGE_SIZE, "Fail\n");
ret = sizeof("Fail");
}
/* ret = sizeof(str); */
ret = simple_read_from_buffer(user_buf, count, ppos, str, ret);
kfree(str);
#endif /* TFA_CHECK_CALIBRATE_DONE */
return ret;
}
static ssize_t tfa98xx_dbgfs_start_set(struct file *file,
const char __user *user_buf, size_t count, loff_t *ppos)
{
struct i2c_client *i2c = file->private_data;
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c);
enum tfa98xx_error ret;
const char ref[] = "1"; /* "please calibrate now" */
char buf[32];
int buf_size;
#if defined(TFA_DBGFS_CHECK_MTPEX)
unsigned short value;
#endif
pr_info("%s: begin\n", __func__);
if (tfa98xx->pstream == 0) {
pr_info("%s: Playback Fail. speaker init calibration Fail\n",
__func__);
#if !defined(TFA_DBGFS_CHECK_MTPEX)
tfa98xx->calibrate_done = 0;
#endif
return count;
}
#if defined(TFA_DBGFS_CHECK_MTPEX)
if (!tfa98xx->calibrate_done) {
mutex_lock(&tfa98xx->dsp_lock);
ret = tfa98xx_open(tfa98xx->handle);
if (ret) {
mutex_unlock(&tfa98xx->dsp_lock);
return -EBUSY;
}
ret = tfa98xx_get_mtp(tfa98xx->handle, &value);
tfa98xx_close(tfa98xx->handle);
mutex_unlock(&tfa98xx->dsp_lock);
if (!ret) {
tfa98xx->calibrate_done =
(value & TFA98XX_KEY2_PROTECTED_MTP0_MTPEX_MSK)
? 1 : 0;
pr_debug("[0x%x] calibrate_done = MTPEX (%d)\n",
tfa98xx->i2c->addr, tfa98xx->calibrate_done);
} else {
pr_debug("[0x%x] error in reading MTPEX\n",
tfa98xx->i2c->addr);
tfa98xx->calibrate_done = 0;
}
}
if (tfa98xx->calibrate_done) {
pr_info("[0x%x] Calibration is already done (Success)\n",
tfa98xx->i2c->addr);
return count;
}
#endif
/* check string length, and account for eol */
if (count > sizeof(ref) + 1 || count < (sizeof(ref) - 1))
return -EINVAL;
buf_size = min(count, (size_t)(sizeof(buf)-1));
if (copy_from_user(buf, user_buf, buf_size))
return -EFAULT;
buf[buf_size] = 0;
/* Compare string, excluding the trailing \0 and the potentials eol */
if (strncmp(buf, ref, sizeof(ref) - 1))
return -EINVAL;
ret = tfa_run_calibrate(tfa98xx->handle, NULL);
if (ret) {
pr_info("[0x%x] calibration failed (%d), deferring...\n",
tfa98xx->i2c->addr, ret);
} else {
pr_info("[0x%x] calibration succeeded\n", tfa98xx->i2c->addr);
}
pr_info("%s: end\n", __func__);
return count;
}
static ssize_t tfa98xx_dbgfs_r_read(struct file *file,
char __user *user_buf, size_t count, loff_t *ppos)
{
struct i2c_client *i2c = file->private_data;
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c);
char *str;
uint16_t status;
int ret, calibrate_done;
mutex_lock(&tfa98xx->dsp_lock);
ret = tfa98xx_open(tfa98xx->handle);
if (ret) {
mutex_unlock(&tfa98xx->dsp_lock);
return -EBUSY;
}
/* Need to ensure DSP is access-able, use mtp read access for this
* purpose
*/
ret = tfa98xx_get_mtp(tfa98xx->handle, &status);
if (ret) {
ret = -EIO;
pr_err("[0x%x] MTP read failed\n", tfa98xx->i2c->addr);
goto r_c_err;
}
ret = tfa_run_wait_calibration(tfa98xx->handle, &calibrate_done);
if (ret) {
ret = -EIO;
pr_err("[0x%x] calibration failed\n", tfa98xx->i2c->addr);
goto r_c_err;
}
str = kmalloc(PAGE_SIZE, GFP_KERNEL);
if (!str) {
ret = -ENOMEM;
pr_err("[0x%x] memory allocation failed\n", tfa98xx->i2c->addr);
goto r_c_err;
}
switch (calibrate_done) {
case 1:
/* calibration complete ! */
tfa_dsp_get_calibration_impedance(tfa98xx->handle);
ret = print_calibration(tfa98xx->handle, str, PAGE_SIZE);
break;
case 0:
case -1:
ret = scnprintf(str, PAGE_SIZE, "%d\n", calibrate_done);
break;
default:
pr_err("[0x%x] Unknown calibration status: %d\n",
tfa98xx->i2c->addr, calibrate_done);
ret = -EINVAL;
}
pr_debug("[0x%x] calib_done: %d - ret = %d - %s",
tfa98xx->i2c->addr, calibrate_done, ret, str);
if (ret < 0)
goto r_err;
ret = simple_read_from_buffer(user_buf, count, ppos, str, ret);
r_err:
kfree(str);
r_c_err:
tfa98xx_close(tfa98xx->handle);
mutex_unlock(&tfa98xx->dsp_lock);
return ret;
}
#endif /* CONFIG_DEBUG_FS */
enum tfa98xx_error
tfa_run_calibrate(tfa98xx_handle_t handle, uint16_t *value)
{
struct tfa98xx *tfa98xx = tfa98xx_devices[handle];
struct tfa98xx_control *calib = &(handles_local[handle]
.dev_ops.controls.calib);
enum tfa98xx_error ret;
int spkr_count, i;
u64 otc_val = 1;
int temp_val = 25;
int is_cont_open = 0;
mutex_lock(&tfa98xx->dsp_lock);
is_cont_open = tfa98xx_handle_is_open(tfa98xx->handle);
if (!is_cont_open) {
ret = tfa98xx_open(tfa98xx->handle);
if (ret) {
mutex_unlock(&tfa98xx->dsp_lock);
return -EBUSY;
}
}
/* OTC <0:always 1:once> */
ret = tfa98xx_set_mtp(tfa98xx->handle,
(otc_val << TFA98XX_KEY2_PROTECTED_MTP0_MTPOTC_POS)
& TFA98XX_KEY2_PROTECTED_MTP0_MTPOTC_MSK,
TFA98XX_KEY2_PROTECTED_MTP0_MTPOTC_MSK);
if (ret)
pr_info("setting OTC failed (%d)\n", ret);
/* EXT_TEMP */
#if defined(TFA_READ_BATTERY_TEMP)
ret = tfa98xx_read_battery_temp(&temp_val);
if (ret)
pr_err("error in reading battery temp\n");
#endif
tfa98xx_set_exttemp(tfa98xx->handle, (short)temp_val);
/* reset stored calibration data */
ret = tfa98xx_supported_speakers(handle, &spkr_count);
if (ret == TFA98XX_ERROR_OK) {
for (i = 0; i < spkr_count; i++)
handles_local[tfa98xx->handle].mohm[i] = -1;
handles_local[tfa98xx->handle].temp = temp_val;
}
#if !defined(TFA_FORCE_TO_WAIT_UNTIL_CALIBRATE)
/* Do not open/close tfa98xx: not required by tfa_calibrate */
ret = tfa_calibrate(tfa98xx->handle);
if (!is_cont_open)
tfa98xx_close(tfa98xx->handle);
if (ret == TFA98XX_ERROR_OK) {
ret = tfa98xx_tfa_start(tfa98xx,
tfa98xx_profile, tfa98xx_vsteps);
}
#else
/* MTPEX <reset to force to calibrate> */
ret = tfa98xx_set_mtp(tfa98xx->handle, 0,
TFA98XX_KEY2_PROTECTED_MTP0_MTPEX_MSK);
if (ret)
pr_info("resetting MTPEX failed (%d)\n", ret);
/* run calibration */
ret = tfa_tfadsp_calibrate(tfa98xx->handle);
if (!is_cont_open)
ret = tfa98xx_close(tfa98xx->handle);
#endif /* TFA_FORCE_TO_WAIT_UNTIL_CALIBRATE */
mutex_unlock(&tfa98xx->dsp_lock);
#if defined(TFA_FORCE_TO_WAIT_UNTIL_CALIBRATE)
calib->wr_value = false; /* calibration over */
#endif
if (ret) {
pr_info("[0x%x] Calibration start failed (%d), deferring...\n",
tfa98xx->i2c->addr, ret);
calib->triggered = true;
tfa98xx->calibrate_done = 0;
calib->rd_valid = true; /* result available */
calib->rd_value = false; /* result not valid */
} else {
pr_info("[0x%x] Calibration started\n", tfa98xx->i2c->addr);
calib->triggered = false;
tfa98xx->calibrate_done = 1;
calib->rd_valid = true; /* result available */
calib->rd_value = true; /* result valid */
}
if (value != NULL)
if ((calib->wr_value == false && calib->rd_valid == true)
&& (TFA_GET_BF(tfa98xx->handle, MTPEX) == 1)) {
*value = handles_local[tfa98xx->handle].mohm[0];
if (*value == -1) {
pr_info("%s: calibration data is not valid\n",
__func__);
handles_local[tfa98xx->handle].temp = 0xffff;
return -EINVAL;
}
}
return ret;
}
EXPORT_SYMBOL(tfa_run_calibrate);
enum tfa98xx_error
tfa_read_calibrate(tfa98xx_handle_t handle, uint16_t *value)
{
struct tfa98xx *tfa98xx = tfa98xx_devices[handle];
struct tfa98xx_control *calib = &(handles_local[handle]
.dev_ops.controls.calib);
enum tfa98xx_error ret;
ret = wait_event_interruptible(tfa98xx->wq,
calib->wr_value == false);
if (ret == -ERESTARTSYS) {
/* interrupted by signal */
return ret;
}
if (!calib->rd_valid) {
/* no calibration result available - skip */
pr_err("no valid calibration data is available");
return -EINVAL;
}
if (value != NULL)
if (TFA_GET_BF(tfa98xx->handle, MTPEX) == 1) {
*value = handles_local[tfa98xx->handle].mohm[0];
if (*value == -1) {
pr_info("%s: calibration data is not valid\n",
__func__);
return -EINVAL;
}
}
return TFA98XX_ERROR_OK;
}
EXPORT_SYMBOL(tfa_read_calibrate);
enum tfa98xx_error
tfa_read_cal_temp(tfa98xx_handle_t handle, uint16_t *value)
{
struct tfa98xx *tfa98xx = tfa98xx_devices[handle];
struct tfa98xx_control *calib = &(handles_local[handle]
.dev_ops.controls.calib);
enum tfa98xx_error ret;
if (value == NULL)
return TFA98XX_ERROR_FAIL;
*value = 0xffff;
ret = wait_event_interruptible(tfa98xx->wq,
calib->wr_value == false);
if (ret == -ERESTARTSYS) {
/* interrupted by signal */
return ret;
}
if (!calib->rd_valid) {
/* no calibration result available - skip */
pr_err("no valid calibration temp is available");
return -EINVAL;
}
if (TFA_GET_BF(tfa98xx->handle, MTPEX) == 1) {
*value = handles_local[tfa98xx->handle].temp;
if (*value == 0xffff) {
pr_info("%s: calibration data is not valid\n",
__func__);
return -EINVAL;
}
}
return TFA98XX_ERROR_OK;
}
EXPORT_SYMBOL(tfa_read_cal_temp);
#if defined(TFA_READ_BATTERY_TEMP)
static enum tfa98xx_error tfa98xx_read_battery_temp(int *value)
{
struct power_supply *psy;
union power_supply_propval prop_read = {0};
int ret = 0;
/* get power supply of "battery" */
/* value is preserved with default when error happens */
psy = power_supply_get_by_name("battery");
if (!psy) {
pr_err("%s: failed to get power supply\n", __func__);
return TFA98XX_ERROR_FAIL;
}
#if KERNEL_VERSION(4, 1, 0) > LINUX_VERSION_CODE
ret = psy->get_property(psy, POWER_SUPPLY_PROP_TEMP, &prop_read);
#else
if (!psy->desc) {
pr_err("%s: failed to get desc of power supply\n", __func__);
return TFA98XX_ERROR_FAIL;
}
ret = psy->desc->get_property(psy, POWER_SUPPLY_PROP_TEMP, &prop_read);
#endif
if (!ret) {
*value = (int)(prop_read.intval / 10); /* in degC */
pr_info("%s: read battery temp (%d)\n", __func__, *value);
} else {
pr_err("%s: failed to get temp property\n", __func__);
return TFA98XX_ERROR_FAIL;
}
return TFA98XX_ERROR_OK;
}
#endif /* TFA_READ_BATTERY_TEMP */
#ifdef CONFIG_DEBUG_FS
static ssize_t tfa98xx_dbgfs_version_read(struct file *file,
char __user *user_buf, size_t count, loff_t *ppos)
{
char str[] = TFA98XX_VERSION "\n";
int ret;
ret = simple_read_from_buffer(user_buf, count, ppos, str, sizeof(str));
return ret;
}
static ssize_t tfa98xx_dbgfs_dsp_state_get(struct file *file,
char __user *user_buf, size_t count, loff_t *ppos)
{
struct i2c_client *i2c = file->private_data;
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c);
int ret = 0;
char *str;
switch (tfa98xx->dsp_init) {
case TFA98XX_DSP_INIT_STOPPED:
str = "Stopped\n";
break;
case TFA98XX_DSP_INIT_RECOVER:
str = "Recover requested\n";
break;
case TFA98XX_DSP_INIT_FAIL:
str = "Failed init\n";
break;
case TFA98XX_DSP_INIT_PENDING:
str = "Pending init\n";
break;
case TFA98XX_DSP_INIT_DONE:
str = "Init complete\n";
break;
default:
str = "Invalid\n";
}
pr_debug("[0x%x] dsp_state : %s\n", tfa98xx->i2c->addr, str);
ret = simple_read_from_buffer(user_buf, count, ppos, str, strlen(str));
return ret;
}
static ssize_t tfa98xx_dbgfs_dsp_state_set(struct file *file,
const char __user *user_buf, size_t count, loff_t *ppos)
{
struct i2c_client *i2c = file->private_data;
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c);
enum tfa_error ret;
char buf[32];
const char start_cmd[] = "start";
const char stop_cmd[] = "stop";
const char mon_start_cmd[] = "monitor start";
const char mon_stop_cmd[] = "monitor stop";
int buf_size;
buf_size = min(count, (size_t)(sizeof(buf)-1));
if (copy_from_user(buf, user_buf, buf_size))
return -EFAULT;
buf[buf_size] = 0;
/* Compare strings, excluding the trailing \0 */
if (!strncmp(buf, start_cmd, sizeof(start_cmd) - 1)) {
pr_info("[0x%x] Manual triggering of dsp start...\n",
tfa98xx->i2c->addr);
mutex_lock(&tfa98xx->dsp_lock);
ret = tfa98xx_tfa_start
(tfa98xx, tfa98xx_profile, tfa98xx_vsteps);
mutex_unlock(&tfa98xx->dsp_lock);
pr_debug("[0x%x] tfa_start complete: %d\n",
tfa98xx->i2c->addr, ret);
} else if (!strncmp(buf, stop_cmd, sizeof(stop_cmd) - 1)) {
pr_info("[0x%x] Manual triggering of dsp stop...\n",
tfa98xx->i2c->addr);
mutex_lock(&tfa98xx->dsp_lock);
ret = tfa_stop();
mutex_unlock(&tfa98xx->dsp_lock);
pr_debug("[0x%x] tfa_stop complete: %d\n",
tfa98xx->i2c->addr, ret);
} else if (!strncmp(buf, mon_start_cmd, sizeof(mon_start_cmd) - 1)) {
pr_info("[0x%x] Manual start of monitor thread...\n",
tfa98xx->i2c->addr);
queue_delayed_work(tfa98xx->tfa98xx_wq,
&tfa98xx->monitor_work, HZ);
} else if (!strncmp(buf, mon_stop_cmd, sizeof(mon_stop_cmd) - 1)) {
pr_info("[0x%x] Manual stop of monitor thread...\n",
tfa98xx->i2c->addr);
cancel_delayed_work_sync(&tfa98xx->monitor_work);
} else {
return -EINVAL;
}
return count;
}
static ssize_t tfa98xx_dbgfs_fw_state_get(struct file *file,
char __user *user_buf, size_t count, loff_t *ppos)
{
struct i2c_client *i2c = file->private_data;
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c);
char *str;
switch (tfa98xx->dsp_fw_state) {
case TFA98XX_DSP_FW_NONE:
str = "None\n";
break;
case TFA98XX_DSP_FW_PENDING:
str = "Pending\n";
break;
case TFA98XX_DSP_FW_FAIL:
str = "Fail\n";
break;
case TFA98XX_DSP_FW_OK:
str = "Ok\n";
break;
default:
str = "Invalid\n";
}
pr_debug("[0x%x] fw_state : %s", tfa98xx->i2c->addr, str);
return simple_read_from_buffer(user_buf, count, ppos, str, strlen(str));
}
static ssize_t tfa98xx_dbgfs_accounting_get(struct file *file,
char __user *user_buf, size_t count, loff_t *ppos)
{
struct i2c_client *i2c = file->private_data;
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c);
char str[255];
int ret;
int n = 0;
n += snprintf(&str[n], sizeof(str)-1-n, "Wait4Src\t= %d\n",
tfa98xx->count_wait_for_source_state);
n += snprintf(&str[n], sizeof(str)-1-n, "NOCLK\t\t= %d\n",
tfa98xx->count_noclk);
str[n+1] = '\0'; /* in case str is not large enough */
ret = simple_read_from_buffer(user_buf, count, ppos, str, n+1);
return ret;
}
/* ++ RPC message fops */
static ssize_t tfa98xx_dbgfs_rpc_read(struct file *file,
char __user *user_buf, size_t count, loff_t *ppos)
{
struct i2c_client *i2c = file->private_data;
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c);
int ret = 0;
uint8_t *buffer;
enum tfa98xx_error error;
if (tfa98xx->handle < 0) {
pr_debug("[0x%x] dsp is not available\n", tfa98xx->i2c->addr);
return -ENODEV;
}
if (count == 0)
return 0;
buffer = kmalloc(count, GFP_KERNEL);
if (buffer == NULL) {
ret = -ENOMEM;
pr_debug("[0x%x] can not allocate memory\n",
tfa98xx->i2c->addr);
return ret;
}
mutex_lock(&tfa98xx->dsp_lock);
error = dsp_msg_read(tfa98xx->handle, count, buffer);
mutex_unlock(&tfa98xx->dsp_lock);
if (error) {
pr_debug("[0x%x] dsp_msg_read error: %d\n",
tfa98xx->i2c->addr, error);
kfree(buffer);
return -EFAULT;
}
ret = simple_read_from_buffer(user_buf, count, ppos, buffer, count);
kfree(buffer);
return ret;
}
static ssize_t tfa98xx_dbgfs_rpc_send(struct file *file,
const char __user *user_buf, size_t count, loff_t *ppos)
{
struct i2c_client *i2c = file->private_data;
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c);
struct tfa_file_dsc *msg_file;
enum tfa98xx_error error;
int ret = 0;
if (tfa98xx->handle < 0) {
pr_debug("[0x%x] dsp is not available\n", tfa98xx->i2c->addr);
return -ENODEV;
}
if (count == 0)
return 0;
/* msg_file.name is not used */
msg_file = kmalloc(count + sizeof(struct tfa_file_dsc), GFP_KERNEL);
if (msg_file == NULL) {
ret = -ENOMEM;
pr_debug("[0x%x] can not allocate memory\n",
tfa98xx->i2c->addr);
return ret;
}
msg_file->size = count;
if (copy_from_user(msg_file->data, user_buf, count)) {
kfree(msg_file);
return -EFAULT;
}
mutex_lock(&tfa98xx->dsp_lock);
if ((msg_file->data[0] == 'M') && (msg_file->data[1] == 'G')) {
error = tfa_cont_write_file(tfa98xx->handle, msg_file, 0, 0);
/* int vstep_idx, int vstep_msg_idx both 0 */
if (error)
pr_debug("[0x%x] tfa_cont_write_file error: %d\n",
tfa98xx->i2c->addr, error);
} else {
error = dsp_msg
(tfa98xx->handle, msg_file->size, msg_file->data);
if (error)
pr_debug("[0x%x] dsp_msg error: %d\n",
tfa98xx->i2c->addr, error);
}
mutex_unlock(&tfa98xx->dsp_lock);
kfree(msg_file);
return count;
}
/* -- RPC */
/* ++ DSP message fops */
static ssize_t tfa98xx_dbgfs_dsp_read(struct file *file,
char __user *user_buf, size_t count, loff_t *ppos)
{
struct i2c_client *i2c = file->private_data;
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c);
int ret = 0;
uint8_t *buffer;
enum tfa98xx_error error;
if (tfa98xx->handle < 0) {
pr_debug("[0x%x] dsp is not available\n", tfa98xx->i2c->addr);
return -ENODEV;
}
if (count == 0)
return 0;
buffer = kmalloc(count, GFP_KERNEL);
if (buffer == NULL) {
ret = -ENOMEM;
pr_debug("[0x%x] can not allocate memory\n",
tfa98xx->i2c->addr);
return ret;
}
mutex_lock(&tfa98xx->dsp_lock);
error = dsp_msg_read(tfa98xx->handle, count, buffer);
mutex_unlock(&tfa98xx->dsp_lock);
if (error) {
pr_debug("[0x%x] dsp_msg_read error: %d\n",
tfa98xx->i2c->addr, error);
kfree(buffer);
return -EFAULT;
}
/* ret = simple_read_from_buffer
* (user_buf, count, ppos, buffer, count);
*/
ret = copy_to_user(user_buf, buffer, count);
if (ret) {
pr_debug("[0x%x] cannot copy buffer to user: %d\n",
tfa98xx->i2c->addr, ret);
kfree(buffer);
return -EFAULT;
}
kfree(buffer);
return count;
}
static ssize_t tfa98xx_dbgfs_dsp_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct i2c_client *i2c = file->private_data;
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c);
int ret = 0;
uint8_t *buffer;
enum tfa98xx_error error;
if (tfa98xx->handle < 0) {
pr_debug("[0x%x] dsp is not available\n", tfa98xx->i2c->addr);
return -ENODEV;
}
if (count == 0)
return 0;
buffer = kmalloc(count, GFP_KERNEL);
if (buffer == NULL) {
ret = -ENOMEM;
pr_debug("[0x%x] can not allocate memory\n",
tfa98xx->i2c->addr);
return ret;
}
ret = copy_from_user(buffer, user_buf, count);
if (ret) {
pr_debug("[0x%x] cannot copy buffer from user: %d\n",
tfa98xx->i2c->addr, ret);
kfree(buffer);
return -EFAULT;
}
mutex_lock(&tfa98xx->dsp_lock);
error = dsp_msg(tfa98xx->handle, count, buffer);
mutex_unlock(&tfa98xx->dsp_lock);
if (error) {
pr_debug("[0x%x] dsp_msg error: %d\n",
tfa98xx->i2c->addr, error);
kfree(buffer);
return -EFAULT;
}
kfree(buffer);
return count;
}
/* -- DSP */
static int tfa98xx_dbgfs_pga_gain_get(void *data, u64 *val)
{
struct i2c_client *i2c = (struct i2c_client *)data;
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c);
int err;
unsigned int value;
/* *val = TFA_GET_BF(tfa98xx->handle, SAAMGAIN); */
err = regmap_read(tfa98xx->regmap, TFA98XX_CTRL_SAAM_PGA, &value);
*val = (value & TFA98XX_CTRL_SAAM_PGA_SAAMGAIN_MSK) >>
TFA98XX_CTRL_SAAM_PGA_SAAMGAIN_POS;
return 0;
}
static int tfa98xx_dbgfs_pga_gain_set(void *data, u64 val)
{
struct i2c_client *i2c = (struct i2c_client *)data;
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c);
int err;
unsigned int value;
value = val & 0xffff;
if (value > 7)
return -EINVAL;
/* TFA_SET_BF(tfa98xx->handle, SAAMGAIN, value);*/
err = regmap_update_bits(tfa98xx->regmap, TFA98XX_CTRL_SAAM_PGA,
TFA98XX_CTRL_SAAM_PGA_SAAMGAIN_MSK,
value << TFA98XX_CTRL_SAAM_PGA_SAAMGAIN_POS);
return err;
}
/* Direct registers access - provide register address in hex */
#define TFA98XX_DEBUGFS_REG_SET(__reg) \
static int tfa98xx_dbgfs_reg_##__reg##_set(void *data, u64 val) \
{ \
struct i2c_client *i2c = (struct i2c_client *)data; \
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c); \
unsigned int ret, value; \
\
ret = regmap_write(tfa98xx->regmap, 0x##__reg, (val & 0xffff)); \
value = val & 0xffff; \
return 0; \
} \
static int tfa98xx_dbgfs_reg_##__reg##_get(void *data, u64 *val) \
{ \
struct i2c_client *i2c = (struct i2c_client *)data; \
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c); \
unsigned int value; \
int ret; \
\
ret = regmap_read(tfa98xx->regmap, 0x##__reg, &value); \
*val = value; \
return 0; \
} \
DEFINE_SIMPLE_ATTRIBUTE(tfa98xx_dbgfs_reg_##__reg##_fops, \
tfa98xx_dbgfs_reg_##__reg##_get, \
tfa98xx_dbgfs_reg_##__reg##_set, "0x%llx\n")
#define VAL(str) #str
#define TOSTRING(str) VAL(str)
#define TFA98XX_DEBUGFS_REG_CREATE_FILE(__reg, __name) \
debugfs_create_file(TOSTRING(__reg) "-" TOSTRING(__name), \
0664, dbg_reg_dir, \
i2c, &tfa98xx_dbgfs_reg_##__reg##_fops)
TFA98XX_DEBUGFS_REG_SET(00);
TFA98XX_DEBUGFS_REG_SET(01);
TFA98XX_DEBUGFS_REG_SET(02);
TFA98XX_DEBUGFS_REG_SET(03);
TFA98XX_DEBUGFS_REG_SET(04);
TFA98XX_DEBUGFS_REG_SET(05);
TFA98XX_DEBUGFS_REG_SET(06);
TFA98XX_DEBUGFS_REG_SET(07);
TFA98XX_DEBUGFS_REG_SET(08);
TFA98XX_DEBUGFS_REG_SET(09);
TFA98XX_DEBUGFS_REG_SET(0A);
TFA98XX_DEBUGFS_REG_SET(0B);
TFA98XX_DEBUGFS_REG_SET(0F);
TFA98XX_DEBUGFS_REG_SET(10);
TFA98XX_DEBUGFS_REG_SET(11);
TFA98XX_DEBUGFS_REG_SET(12);
TFA98XX_DEBUGFS_REG_SET(13);
TFA98XX_DEBUGFS_REG_SET(22);
TFA98XX_DEBUGFS_REG_SET(25);
DEFINE_SIMPLE_ATTRIBUTE(tfa98xx_dbgfs_calib_otc_fops,
tfa98xx_dbgfs_otc_get,
tfa98xx_dbgfs_otc_set, "%llu\n");
DEFINE_SIMPLE_ATTRIBUTE(tfa98xx_dbgfs_calib_mtpex_fops,
tfa98xx_dbgfs_mtpex_get,
tfa98xx_dbgfs_mtpex_set, "%llu\n");
DEFINE_SIMPLE_ATTRIBUTE(tfa98xx_dbgfs_calib_temp_fops,
tfa98xx_dbgfs_temp_get,
tfa98xx_dbgfs_temp_set, "%llu\n");
DEFINE_SIMPLE_ATTRIBUTE(tfa98xx_dbgfs_pga_gain_fops,
tfa98xx_dbgfs_pga_gain_get,
tfa98xx_dbgfs_pga_gain_set, "%llu\n");
static const struct file_operations tfa98xx_dbgfs_calib_start_fops = {
.open = simple_open,
.read = tfa98xx_dbgfs_start_get,
.write = tfa98xx_dbgfs_start_set,
.llseek = default_llseek,
};
static const struct file_operations tfa98xx_dbgfs_r_fops = {
.open = simple_open,
.read = tfa98xx_dbgfs_r_read,
.llseek = default_llseek,
};
static const struct file_operations tfa98xx_dbgfs_version_fops = {
.open = simple_open,
.read = tfa98xx_dbgfs_version_read,
.llseek = default_llseek,
};
static const struct file_operations tfa98xx_dbgfs_dsp_state_fops = {
.open = simple_open,
.read = tfa98xx_dbgfs_dsp_state_get,
.write = tfa98xx_dbgfs_dsp_state_set,
.llseek = default_llseek,
};
static const struct file_operations tfa98xx_dbgfs_fw_state_fops = {
.open = simple_open,
.read = tfa98xx_dbgfs_fw_state_get,
.llseek = default_llseek,
};
static const struct file_operations tfa98xx_dbgfs_accounting_fops = {
.open = simple_open,
.read = tfa98xx_dbgfs_accounting_get,
.llseek = default_llseek,
};
static const struct file_operations tfa98xx_dbgfs_rpc_fops = {
.open = simple_open,
.read = tfa98xx_dbgfs_rpc_read,
.write = tfa98xx_dbgfs_rpc_send,
.llseek = default_llseek,
};
static const struct file_operations tfa98xx_dbgfs_dsp_fops = {
.open = simple_open,
.read = tfa98xx_dbgfs_dsp_read,
.write = tfa98xx_dbgfs_dsp_write,
.llseek = default_llseek,
};
static void tfa98xx_debug_init(struct tfa98xx *tfa98xx, struct i2c_client *i2c)
{
char name[50];
struct dentry *dbg_reg_dir;
scnprintf(name, MAX_CONTROL_NAME, "%s-%x", i2c->name, i2c->addr);
tfa98xx->dbg_dir = debugfs_create_dir(name, NULL);
debugfs_create_file("OTC", 0664,
tfa98xx->dbg_dir, i2c, &tfa98xx_dbgfs_calib_otc_fops);
debugfs_create_file("MTPEX", 0664,
tfa98xx->dbg_dir, i2c, &tfa98xx_dbgfs_calib_mtpex_fops);
debugfs_create_file("TEMP", 0664,
tfa98xx->dbg_dir, i2c, &tfa98xx_dbgfs_calib_temp_fops);
debugfs_create_file("calibrate", 0664,
tfa98xx->dbg_dir, i2c, &tfa98xx_dbgfs_calib_start_fops);
debugfs_create_file("R", 0444,
tfa98xx->dbg_dir, i2c, &tfa98xx_dbgfs_r_fops);
debugfs_create_file("version", 0444,
tfa98xx->dbg_dir, i2c, &tfa98xx_dbgfs_version_fops);
debugfs_create_file("dsp-state", 0664,
tfa98xx->dbg_dir, i2c, &tfa98xx_dbgfs_dsp_state_fops);
debugfs_create_file("fw-state", 0664,
tfa98xx->dbg_dir, i2c, &tfa98xx_dbgfs_fw_state_fops);
debugfs_create_file("accounting", 0444,
tfa98xx->dbg_dir, i2c, &tfa98xx_dbgfs_accounting_fops);
debugfs_create_file("rpc", 0444,
tfa98xx->dbg_dir, i2c, &tfa98xx_dbgfs_rpc_fops);
debugfs_create_file("dsp", 0644,
tfa98xx->dbg_dir, i2c, &tfa98xx_dbgfs_dsp_fops);
/* Direct registers access */
if (tfa98xx->flags & TFA98XX_FLAG_TFA9890_FAM_DEV) {
dbg_reg_dir = debugfs_create_dir("regs", tfa98xx->dbg_dir);
TFA98XX_DEBUGFS_REG_CREATE_FILE(00, STATUS);
TFA98XX_DEBUGFS_REG_CREATE_FILE(01, BATTERYVOLTAGE);
TFA98XX_DEBUGFS_REG_CREATE_FILE(02, TEMPERATURE);
TFA98XX_DEBUGFS_REG_CREATE_FILE(03, REVISIONNUMBER);
TFA98XX_DEBUGFS_REG_CREATE_FILE(04, I2SREG);
TFA98XX_DEBUGFS_REG_CREATE_FILE(05, BAT_PROT);
TFA98XX_DEBUGFS_REG_CREATE_FILE(06, AUDIO_CTR);
TFA98XX_DEBUGFS_REG_CREATE_FILE(07, DCDCBOOST);
TFA98XX_DEBUGFS_REG_CREATE_FILE(08, SPKR_CALIBRATION);
TFA98XX_DEBUGFS_REG_CREATE_FILE(09, SYS_CTRL);
TFA98XX_DEBUGFS_REG_CREATE_FILE(0A, I2S_SEL_REG);
TFA98XX_DEBUGFS_REG_CREATE_FILE(0B, HIDDEN_MTP_KEY2);
TFA98XX_DEBUGFS_REG_CREATE_FILE(0F, INTERRUPT_REG);
TFA98XX_DEBUGFS_REG_CREATE_FILE(10, PDM_CTRL);
TFA98XX_DEBUGFS_REG_CREATE_FILE(11, PDM_OUT_CTRL);
TFA98XX_DEBUGFS_REG_CREATE_FILE(12, PDM_DS4_R);
TFA98XX_DEBUGFS_REG_CREATE_FILE(13, PDM_DS4_L);
TFA98XX_DEBUGFS_REG_CREATE_FILE(22, CTRL_SAAM_PGA);
TFA98XX_DEBUGFS_REG_CREATE_FILE(25, MISC_CTRL);
}
if (tfa98xx->flags & TFA98XX_FLAG_SAAM_AVAILABLE) {
dev_dbg(tfa98xx->dev, "Adding pga_gain debug interface\n");
debugfs_create_file("pga_gain", 0444, tfa98xx->dbg_dir,
tfa98xx->i2c,
&tfa98xx_dbgfs_pga_gain_fops);
}
}
static void tfa98xx_debug_remove(struct tfa98xx *tfa98xx)
{
debugfs_remove_recursive(tfa98xx->dbg_dir);
}
#endif /* CONFIG_DEBUG_FS */
static int tfa98xx_get_vstep(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct tfa98xx *tfa98xx = snd_soc_codec_get_drvdata(codec);
int mixer_profile = kcontrol->private_value;
int profile, vstep;
profile = get_profile_id_for_sr(mixer_profile, tfa98xx->rate);
if (profile < 0) {
pr_err("%s: invalid profile %d (mixer_profile=%d, rate=%d)\n",
__func__, profile, mixer_profile, tfa98xx->rate);
return -EINVAL;
}
vstep = tfa98xx_prof_vsteps[profile];
ucontrol->value.integer.value[0] =
tfa_cont_get_max_vstep(tfa98xx->handle, profile)
- vstep - 1;
return 0;
}
static int tfa98xx_set_vstep(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct tfa98xx *tfa98xx = snd_soc_codec_get_drvdata(codec);
int mixer_profile = kcontrol->private_value;
int value = ucontrol->value.integer.value[0];
int profile, vstep, vsteps;
int new_vstep, err = 0;
if (no_start != 0)
return 0;
profile = get_profile_id_for_sr(mixer_profile, tfa98xx->rate);
if (profile < 0) {
pr_err("%s: invalid profile %d (mixer_profile=%d, rate=%d)\n",
__func__, profile, mixer_profile, tfa98xx->rate);
return -EINVAL;
}
vstep = tfa98xx_prof_vsteps[profile];
vsteps = tfa_cont_get_max_vstep(tfa98xx->handle, profile);
if (vstep == vsteps - value - 1)
return 0;
new_vstep = vsteps - value - 1;
if (new_vstep < 0)
new_vstep = 0;
tfa98xx_prof_vsteps[profile] = new_vstep;
#ifndef TFA98XX_ALSA_CTRL_PROF_CHG_ON_VOL
if (profile == tfa98xx_profile) {
#endif
/* this is the active profile, program the new vstep */
tfa98xx_vsteps[0] = new_vstep;
tfa98xx_vsteps[1] = new_vstep;
/* wait until when DSP is ready for initialization */
if (tfa98xx->pstream != 0 || tfa98xx->samstream != 0) {
mutex_lock(&tfa98xx->dsp_lock);
tfa98xx_open(tfa98xx->handle);
tfa98xx_close(tfa98xx->handle);
err = tfa98xx_tfa_start
(tfa98xx, profile, tfa98xx_vsteps);
if (err)
pr_err("Write vstep error: %d\n", err);
else
pr_debug("Successfully changed vstep index!\n");
mutex_unlock(&tfa98xx->dsp_lock);
} else {
pr_info("%s: tfa_start is suspended when only cstream is on\n",
__func__);
}
#ifndef TFA98XX_ALSA_CTRL_PROF_CHG_ON_VOL
}
#endif
pr_debug("vstep:%d, (control value: %d) - profile %d\n",
new_vstep, value, profile);
return (err == 0);
}
static int tfa98xx_info_vstep(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct tfa98xx *tfa98xx = snd_soc_codec_get_drvdata(codec);
int mixer_profile = kcontrol->private_value;
int profile = get_profile_id_for_sr(mixer_profile, tfa98xx->rate);
if (profile < 0) {
pr_err("%s: invalid profile %d (mixer_profile=%d, rate=%d)\n",
__func__, profile, mixer_profile, tfa98xx->rate);
return -EINVAL;
}
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 1; /* TODO handles_local[dev_idx].spkr_count */
uinfo->value.integer.min = 0;
uinfo->value.integer.max = max
(0, tfa_cont_get_max_vstep(tfa98xx->handle, profile) - 1);
pr_debug("vsteps count: %d [prof=%d]\n",
tfa_cont_get_max_vstep(tfa98xx->handle, profile), profile);
return 0;
}
static int tfa98xx_get_profile(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
ucontrol->value.integer.value[0] = tfa98xx_mixer_profile;
return 0;
}
static int tfa98xx_set_profile(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct tfa98xx *tfa98xx = snd_soc_codec_get_drvdata(codec);
int profile_count = tfa98xx_mixer_profiles;
int profile = tfa98xx_mixer_profile;
int new_profile = ucontrol->value.integer.value[0];
int err;
int prof_idx;
if (no_start != 0)
return 0;
if (new_profile == profile)
return 0;
if (new_profile >= profile_count)
return 0;
/* get the container profile for the requested sample rate */
prof_idx = get_profile_id_for_sr(new_profile, tfa98xx->rate);
if (prof_idx < 0) {
pr_err("tfa98xx: sample rate [%d] not supported for this mixer profile [%d].\n",
tfa98xx->rate, new_profile);
return 0;
}
pr_debug("selected container profile [%d]\n", prof_idx);
/* update mixer profile */
tfa98xx_mixer_profile = new_profile;
/* update 'real' profile (container profile) */
tfa98xx_profile = prof_idx;
tfa98xx_vsteps[0] = tfa98xx_prof_vsteps[prof_idx];
tfa98xx_vsteps[1] = tfa98xx_prof_vsteps[prof_idx];
/*
* Don't call tfa_start() on TFA1 if there is no clock.
* For TFA2 is able to load the profile without clock.
*/
/* wait until when DSP is ready for initialization */
if (tfa98xx->pstream != 0 || tfa98xx->samstream != 0) {
mutex_lock(&tfa98xx->dsp_lock);
tfa98xx_open(tfa98xx->handle);
tfa98xx_close(tfa98xx->handle);
/* Also re-enables the interrupts */
err = tfa98xx_tfa_start(tfa98xx, prof_idx, tfa98xx_vsteps);
if (err) {
pr_info("Write profile error: %d\n", err);
} else {
pr_debug("Changed to profile %d (vstep = %d)\n",
prof_idx, tfa98xx_vsteps[0]);
}
mutex_unlock(&tfa98xx->dsp_lock);
} else {
pr_info("%s: tfa_start is suspended when only cstream is on\n",
__func__);
return 1;
}
/* Flag DSP as invalidated as the profile change may invalidate the
* current DSP configuration. That way, further stream start can
* trigger a tfa_start.
*/
tfa98xx->dsp_init = TFA98XX_DSP_INIT_INVALIDATED;
return 1;
}
static struct snd_kcontrol_new *tfa98xx_controls;
/* copies the profile basename (i.e. part until .) into buf */
static void get_profile_basename(char *buf, char *profile)
{
int cp_len = 0, idx = 0;
char *pch;
pch = strnchr(profile, '.', strlen(profile));
idx = pch - profile;
cp_len = (pch != NULL) ? idx : (int) strlen(profile);
memcpy(buf, profile, cp_len);
buf[cp_len] = 0;
}
/* return the profile name accociated with id from the profile list */
static int get_profile_from_list(char *buf, int id)
{
struct tfa98xx_baseprofile *bprof;
list_for_each_entry(bprof, &profile_list, list) {
if (bprof->item_id == id) {
strlcpy(buf, bprof->basename, MAX_CONTROL_NAME);
return 0;
}
}
return TFA_ERROR;
}
/* search for the profile in the profile list */
static int is_profile_in_list(char *profile, int len)
{
struct tfa98xx_baseprofile *bprof;
list_for_each_entry(bprof, &profile_list, list) {
if (strncmp(bprof->basename, profile, len) == 0)
return 1;
}
return 0;
}
/*
* for the profile with id, look if the requested samplerate is
* supported, if found return the (container)profile for this
* samplerate, on error or if not found return -1
*/
static int get_profile_id_for_sr(int id, unsigned int rate)
{
int idx = 0;
struct tfa98xx_baseprofile *bprof;
list_for_each_entry(bprof, &profile_list, list) {
if (id == bprof->item_id) {
idx = tfa98xx_get_fssel(rate);
if (idx < 0) {
/* samplerate not supported */
return TFA_ERROR;
}
return bprof->sr_rate_sup[idx];
}
}
/* profile not found */
return TFA_ERROR;
}
/* check if this profile is a calibration profile */
static int is_calibration_profile(char *profile)
{
if (strnstr(profile, ".cal", strlen(profile)) != NULL)
return 1;
return 0;
}
/*
* adds the (container)profile index of the samplerate found in
* the (container)profile to a fixed samplerate table in the (mixer)profile
*/
static int add_sr_to_profile(struct tfa98xx *tfa98xx,
char *basename, int len, int profile)
{
struct tfa98xx_baseprofile *bprof;
int idx = 0;
unsigned int sr = 0;
list_for_each_entry(bprof, &profile_list, list) {
if (strncmp(bprof->basename, basename, len) == 0) {
/* add supported samplerate for this profile */
sr = tfa98xx_get_profile_sr(tfa98xx->handle, profile);
if (!sr) {
pr_err("unable to identify supported sample rate for %s\n",
bprof->basename);
return TFA_ERROR;
}
#if defined(TFA_FULL_RATE_SUPPORT_WITH_POST_CONVERSION)
if (sr_converted != sr) {
pr_info("sr_converted: %d to %d\n",
sr_converted, sr);
sr_converted = sr;
}
#endif
/* get the index for this samplerate */
idx = tfa98xx_get_fssel(sr);
if (idx < 0 || idx >= TFA98XX_NUM_RATES) {
pr_err("invalid index for samplerate %d\n",
idx);
return TFA_ERROR;
}
/* enter the (container)profile for this samplerate
* at the corresponding index
*/
bprof->sr_rate_sup[idx] = profile;
pr_debug("added profile:samplerate = [%d:%d] for mixer profile: %s\n",
profile, sr, bprof->basename);
}
}
return 0;
}
static int tfa98xx_info_profile(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
char profile_name[MAX_CONTROL_NAME] = {0};
int count = tfa98xx_mixer_profiles, err = -1;
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = 1;
uinfo->value.enumerated.items = count;
if (uinfo->value.enumerated.item >= count)
uinfo->value.enumerated.item = count - 1;
err = get_profile_from_list(profile_name,
uinfo->value.enumerated.item);
if (err != 0)
return -EINVAL;
strlcpy(uinfo->value.enumerated.name,
profile_name, MAX_CONTROL_NAME);
return 0;
}
static int tfa98xx_get_stop_ctl(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
ucontrol->value.integer.value[0] = 0;
return 0;
}
static int tfa98xx_set_stop_ctl(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct tfa98xx *tfa98xx = snd_soc_codec_get_drvdata(codec);
int ready = 0;
pr_debug("%ld\n", ucontrol->value.integer.value[0]);
tfa98xx_open(tfa98xx->handle);
tfa98xx_close(tfa98xx->handle);
if ((ucontrol->value.integer.value[0] != 0) && ready) {
cancel_delayed_work_sync(&tfa98xx->monitor_work);
cancel_delayed_work_sync(&tfa98xx->init_work);
tfa98xx->init_count = 0;
if (tfa98xx->dsp_fw_state != TFA98XX_DSP_FW_OK)
return 0;
mutex_lock(&tfa98xx->dsp_lock);
tfa_stop();
tfa98xx->dsp_init = TFA98XX_DSP_INIT_STOPPED;
mutex_unlock(&tfa98xx->dsp_lock);
}
ucontrol->value.integer.value[0] = 0;
return 1;
}
static int tfa98xx_info_cal_ctl(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 1;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 0xffff; /* 16 bit value */
return 0;
}
static int tfa98xx_set_cal_ctl(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct tfa98xx *tfa98xx = snd_soc_codec_get_drvdata(codec);
enum tfa98xx_error err;
int status = 0;
tfa98xx->cal_data = (uint16_t)ucontrol->value.integer.value[0];
tfa98xx_open(tfa98xx->handle);
tfa98xx_dsp_system_stable(tfa98xx->handle, &status);
if (status)
err = tfa_mtp_set_calibration
(tfa98xx->handle, tfa98xx->cal_data);
else
err = TFA98XX_ERROR_NO_CLOCK;
tfa98xx_close(tfa98xx->handle);
tfa98xx->set_mtp_cal = (err != TFA98XX_ERROR_OK);
if (tfa98xx->set_mtp_cal == false) {
pr_info("Calibration value (%d) set in mtp\n",
tfa98xx->cal_data);
}
return 1;
}
static int tfa98xx_get_cal_ctl(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct tfa98xx *tfa98xx = snd_soc_codec_get_drvdata(codec);
uint16_t cal_data;
tfa98xx_open(tfa98xx->handle);
tfa_mtp_get_calibration(tfa98xx->handle, &cal_data);
tfa98xx_close(tfa98xx->handle);
ucontrol->value.integer.value[0] = cal_data;
return 0;
}
static int tfa98xx_set_saam_ctl(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct tfa98xx *tfa98xx = snd_soc_codec_get_drvdata(codec);
int saam_select = ucontrol->value.integer.value[0];
dev_dbg(&tfa98xx->i2c->dev, "%s: state: %d\n", __func__, saam_select);
pr_info("%s: trigger tfa amp for SaaM (%s)\n", __func__,
saam_select ? "start" : "stop");
/* saam_select = 1: mute = 0 to enable SaaM
* saam_select = 2: mute = 0 to enable SaaM and playback, concurrently
* saam_select = 0: mute = 1 to disable SaaM
*/
tfa98xx->samstream = saam_select;
tfa98xx_set_saam_use_case(saam_select);
_tfa98xx_mute(tfa98xx, saam_select ? 0 : 1, SNDRV_PCM_STREAM_SAAM);
return 0;
}
static int tfa98xx_get_saam_ctl(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct tfa98xx *tfa98xx = snd_soc_codec_get_drvdata(codec);
ucontrol->value.integer.value[0] = tfa98xx->cstream;
return 0;
}
#if defined(TFA_ACTIVATED_ASYNCHRONOUSLY)
static int tfa98xx_info_activate_spk_ctl(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 1;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 0xf; /* 4-bit to control 4 devices */
return 0;
}
static int tfa98xx_set_activate_spk(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct tfa98xx *tfa98xx = snd_soc_codec_get_drvdata(codec);
struct tfa98xx *tfa98xx_queued;
int activate_spk = ucontrol->value.integer.value[0];
int prior_pstream;
int i = 0;
dev_dbg(&tfa98xx->i2c->dev, "%s: state: %d\n", __func__, activate_spk);
pr_info("%s: [0x%x] trigger tfa amp asynchronously (%s: 0x%x)\n",
__func__, tfa98xx->i2c->addr,
activate_spk ? "ready" : "suspend",
activate_spk);
/* activate_spk = b3;b2;b1;b0 to set which device to enable
* e.g. b0: first device (left), b1: second device (right)
* activate_spk = 2 (0010b) to enable right / disable left
*/
if (ready_to_activate == (unsigned char)activate_spk) {
pr_info("%s: [0x%x] skip action for the same trigger\n",
__func__, tfa98xx->i2c->addr);
return 0;
}
ready_to_activate = (unsigned char)activate_spk;
if (ready_to_activate > 0) {
for (i = 0; i < tfa98xx_cnt_max_device(); i++) {
tfa98xx_queued = tfa98xx_devices[i];
if (tfa98xx_queued->pstream == 0)
continue;
prior_pstream = tfa98xx_queued->pstream;
pr_info("%s: [0x%x] trigger mute first if pstream is active\n",
__func__, tfa98xx_queued->i2c->addr);
_tfa98xx_mute(tfa98xx_queued,
1, SNDRV_PCM_STREAM_PLAYBACK);
pending_pstream[i] = prior_pstream;
}
for (i = 0; i < tfa98xx_cnt_max_device(); i++) {
if (pending_pstream[i] == 0)
continue;
tfa98xx_queued = tfa98xx_devices[i];
pr_info("%s: [0x%x] trigger unmute by force\n",
__func__, tfa98xx_queued->i2c->addr);
_tfa98xx_mute(tfa98xx_queued,
0, SNDRV_PCM_STREAM_PLAYBACK);
}
} else {
for (i = 0; i < tfa98xx_cnt_max_device(); i++) {
tfa98xx_queued = tfa98xx_devices[i];
if (tfa98xx_queued->pstream == 0)
continue;
prior_pstream = tfa98xx_queued->pstream;
pr_info("%s: [0x%x] trigger mute by force\n",
__func__, tfa98xx_queued->i2c->addr);
_tfa98xx_mute(tfa98xx_queued,
1, SNDRV_PCM_STREAM_PLAYBACK);
pending_pstream[i] = prior_pstream;
}
}
return 0;
}
static int tfa98xx_get_activate_spk(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
ucontrol->value.integer.value[0] = ready_to_activate;
return 0;
}
int tfa_is_selected_dev_to_activate(tfa98xx_handle_t handle)
{
if (ready_to_activate & (1 << handle)) {
pr_info("%s: device matched for activation: [%d:0x%x]\n",
__func__, handle, ready_to_activate);
return 1;
}
return 0;
}
#endif /* TFA_ACTIVATED_ASYNCHRONOUSLY */
static int tfa98xx_create_controls(struct tfa98xx *tfa98xx)
{
int prof, nprof, mix_index = 0;
int nr_controls = 0, id = 0;
char *name;
struct tfa98xx_baseprofile *bprofile;
/* Create the following controls:
* - enum control to select the active profile
* - one volume control for each profile hosting a vstep
* - Stop control on TFA1 devices
*/
nr_controls = 1; /* Profile control */
if (tfa98xx_dev_family(tfa98xx->handle) == 1)
nr_controls += 1; /* Stop control */
if (tfa98xx->flags & TFA98XX_FLAG_CALIBRATION_CTL)
nr_controls += 1; /* calibration */
if (tfa98xx->flags & TFA98XX_FLAG_SAAM_AVAILABLE)
nr_controls += 1; /* SaaM */
/* allocate the tfa98xx_controls base on the nr of profiles */
nprof = tfa_cont_max_profile(tfa98xx->handle);
for (prof = 0; prof < nprof; prof++) {
if (tfa_cont_get_max_vstep(tfa98xx->handle, prof))
nr_controls++; /* Playback Volume control */
}
#if defined(TFA_ACTIVATED_ASYNCHRONOUSLY)
nr_controls++; /* set ready to activate amplifier */
#endif
tfa98xx_controls = devm_kzalloc(tfa98xx->codec->dev,
nr_controls * sizeof(tfa98xx_controls[0]), GFP_KERNEL);
if (!tfa98xx_controls)
return -ENOMEM;
/* Create a mixer item for selecting the active profile */
name = devm_kzalloc(tfa98xx->codec->dev, MAX_CONTROL_NAME, GFP_KERNEL);
if (!name)
return -ENOMEM;
scnprintf(name, MAX_CONTROL_NAME, "%s Profile", tfa98xx->fw.name);
tfa98xx_controls[mix_index].name = name;
tfa98xx_controls[mix_index].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
tfa98xx_controls[mix_index].info = tfa98xx_info_profile;
tfa98xx_controls[mix_index].get = tfa98xx_get_profile;
tfa98xx_controls[mix_index].put = tfa98xx_set_profile;
/* tfa98xx_controls[mix_index].private_value = profs; */
/* save number of profiles */
mix_index++;
/* create mixer items for each profile that has volume */
for (prof = 0; prof < nprof; prof++) {
/* create an new empty profile */
bprofile = devm_kzalloc
(tfa98xx->codec->dev, sizeof(*bprofile), GFP_KERNEL);
if (!bprofile)
return -ENOMEM;
bprofile->len = 0;
bprofile->item_id = -1;
INIT_LIST_HEAD(&bprofile->list);
/* copy profile name into basename until the . */
get_profile_basename(bprofile->basename,
tfa_cont_profile_name(tfa98xx->handle, prof));
bprofile->len = strlen(bprofile->basename);
/*
* search the profile list for a profile with basename,
* if it is not found then add it to the list and
* add a new mixer control (if it has vsteps)
* also, if it is a calibration profile,
* do not add it to the list
*/
if (is_profile_in_list(bprofile->basename, bprofile->len) == 0
&& is_calibration_profile
(tfa_cont_profile_name(tfa98xx->handle, prof)) == 0) {
/* the profile is not present, add it to the list */
list_add(&bprofile->list, &profile_list);
bprofile->item_id = id++;
pr_debug("profile added [%d]: %s\n",
bprofile->item_id, bprofile->basename);
if (tfa_cont_get_max_vstep(tfa98xx->handle, prof)) {
name = devm_kzalloc
(tfa98xx->codec->dev, MAX_CONTROL_NAME,
GFP_KERNEL);
if (!name)
return -ENOMEM;
scnprintf(name, MAX_CONTROL_NAME,
"%s %s Playback Volume",
tfa98xx->fw.name, bprofile->basename);
tfa98xx_controls[mix_index].name = name;
tfa98xx_controls[mix_index].iface =
SNDRV_CTL_ELEM_IFACE_MIXER;
tfa98xx_controls[mix_index].info =
tfa98xx_info_vstep;
tfa98xx_controls[mix_index].get =
tfa98xx_get_vstep;
tfa98xx_controls[mix_index].put =
tfa98xx_set_vstep;
tfa98xx_controls[mix_index].private_value =
bprofile->item_id;
/* save profile index */
mix_index++;
}
}
/* look for the basename profile in the list of mixer profiles
* and add the container profile index
* to the supported samplerates of this mixer profile
*/
add_sr_to_profile(tfa98xx, bprofile->basename,
bprofile->len, prof);
}
/* set the number of user selectable profiles in the mixer */
tfa98xx_mixer_profiles = id;
if (tfa98xx_dev_family(tfa98xx->handle) == 1) {
/* Create a mixer item for stop control on TFA1 */
name = devm_kzalloc(tfa98xx->codec->dev, MAX_CONTROL_NAME,
GFP_KERNEL);
if (!name)
return -ENOMEM;
scnprintf(name, MAX_CONTROL_NAME, "%s Stop", tfa98xx->fw.name);
tfa98xx_controls[mix_index].name = name;
tfa98xx_controls[mix_index].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
tfa98xx_controls[mix_index].info = snd_soc_info_bool_ext;
tfa98xx_controls[mix_index].get = tfa98xx_get_stop_ctl;
tfa98xx_controls[mix_index].put = tfa98xx_set_stop_ctl;
mix_index++;
}
if (tfa98xx->flags & TFA98XX_FLAG_CALIBRATION_CTL) {
name = devm_kzalloc(tfa98xx->codec->dev, MAX_CONTROL_NAME,
GFP_KERNEL);
if (!name)
return -ENOMEM;
scnprintf(name, MAX_CONTROL_NAME, "%s Calibration",
tfa98xx->fw.name);
tfa98xx_controls[mix_index].name = name;
tfa98xx_controls[mix_index].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
tfa98xx_controls[mix_index].info = tfa98xx_info_cal_ctl;
tfa98xx_controls[mix_index].get = tfa98xx_get_cal_ctl;
tfa98xx_controls[mix_index].put = tfa98xx_set_cal_ctl;
mix_index++;
}
/* Create a mixer item to enable amplifier for RaM / SaM */
if (tfa98xx->flags & TFA98XX_FLAG_SAAM_AVAILABLE) {
name = devm_kzalloc
(tfa98xx->codec->dev, MAX_CONTROL_NAME, GFP_KERNEL);
if (!name)
return -ENOMEM;
scnprintf(name, MAX_CONTROL_NAME, "%s SaaM", tfa98xx->fw.name);
tfa98xx_controls[mix_index].name = name;
tfa98xx_controls[mix_index].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
tfa98xx_controls[mix_index].info = snd_soc_info_bool_ext;
tfa98xx_controls[mix_index].get = tfa98xx_get_saam_ctl;
tfa98xx_controls[mix_index].put = tfa98xx_set_saam_ctl;
/* tfa98xx_controls[mix_index].private_value = profs; */
/* save number of profiles */
mix_index++;
}
#if defined(TFA_ACTIVATED_ASYNCHRONOUSLY)
/*
* Create a mixer item to activate amplifier
* only at requesst instead of mixer routing
*/
name = devm_kzalloc
(tfa98xx->codec->dev, MAX_CONTROL_NAME, GFP_KERNEL);
if (!name)
return -ENOMEM;
scnprintf(name, MAX_CONTROL_NAME, "ActivateSpk");
tfa98xx_controls[mix_index].name = name;
tfa98xx_controls[mix_index].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
tfa98xx_controls[mix_index].info = tfa98xx_info_activate_spk_ctl;
tfa98xx_controls[mix_index].get = tfa98xx_get_activate_spk;
tfa98xx_controls[mix_index].put = tfa98xx_set_activate_spk;
/* tfa98xx_controls[mix_index].private_value = profs; */
/* save number of profiles */
mix_index++;
#endif /* TFA_ACTIVATED_ASYNCHRONOUSLY */
return snd_soc_add_codec_controls(tfa98xx->codec,
tfa98xx_controls, mix_index);
}
static void *tfa98xx_devm_kstrdup(struct device *dev, char *buf)
{
char *str = devm_kzalloc(dev, strlen(buf) + 1, GFP_KERNEL);
if (!str)
return str;
memcpy(str, buf, strlen(buf));
return str;
}
static int tfa98xx_append_i2c_address(struct device *dev,
struct i2c_client *i2c,
struct snd_soc_dapm_widget *widgets,
int num_widgets,
struct snd_soc_dai_driver *dai_drv,
int num_dai)
{
char buf[50];
int i;
int i2cbus = i2c->adapter->nr;
int addr = i2c->addr;
if (dai_drv && num_dai > 0)
for (i = 0; i < num_dai; i++) {
snprintf(buf, 50, "%s-%x-%x", dai_drv[i].name,
i2cbus, addr);
dai_drv[i].name = tfa98xx_devm_kstrdup(dev, buf);
pr_info("dai_drv[%d].name=%s\n", i, dai_drv[i].name);
snprintf(buf, 50, "%s-%x-%x",
dai_drv[i].playback.stream_name,
i2cbus, addr);
dai_drv[i].playback.stream_name =
tfa98xx_devm_kstrdup(dev, buf);
pr_info("dai_drv[%d].playback.stream_name=%s\n",
i, dai_drv[i].playback.stream_name);
snprintf(buf, 50, "%s-%x-%x",
dai_drv[i].capture.stream_name,
i2cbus, addr);
dai_drv[i].capture.stream_name =
tfa98xx_devm_kstrdup(dev, buf);
pr_info("dai_drv[%d].capture.stream_name=%s\n",
i, dai_drv[i].capture.stream_name);
}
/* the idea behind this is convert:
* SND_SOC_DAPM_AIF_IN
* ("AIF IN","AIF Playback",0,SND_SOC_NOPM,0,0),
* into:
* SND_SOC_DAPM_AIF_IN
* ("AIF IN","AIF Playback-2-36",0,SND_SOC_NOPM,0,0),
*/
if (widgets && num_widgets > 0)
for (i = 0; i < num_widgets; i++) {
if (!widgets[i].sname)
continue;
if ((widgets[i].id == snd_soc_dapm_aif_in)
|| (widgets[i].id == snd_soc_dapm_aif_out)) {
snprintf(buf, 50, "%s-%x-%x",
widgets[i].sname, i2cbus, addr);
widgets[i].sname =
tfa98xx_devm_kstrdup(dev, buf);
pr_info("widgets[%d].sname=%s\n",
i, widgets[i].sname);
}
}
return 0;
}
static struct snd_soc_dapm_widget tfa98xx_dapm_widgets_common[] = {
/* Stream widgets */
SND_SOC_DAPM_AIF_IN("AIF IN", "AIF Playback", 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_OUT("AIF OUT", "AIF Capture", 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_OUTPUT("OUTL"),
SND_SOC_DAPM_INPUT("AEC Loopback"),
};
static struct snd_soc_dapm_widget tfa98xx_dapm_widgets_stereo[] = {
SND_SOC_DAPM_OUTPUT("OUTR"),
};
static struct snd_soc_dapm_widget tfa98xx_dapm_widgets_saam[] = {
SND_SOC_DAPM_INPUT("SAAM MIC"),
};
static struct snd_soc_dapm_widget tfa9888_dapm_inputs[] = {
SND_SOC_DAPM_INPUT("DMIC1"),
SND_SOC_DAPM_INPUT("DMIC2"),
SND_SOC_DAPM_INPUT("DMIC3"),
SND_SOC_DAPM_INPUT("DMIC4"),
};
static const struct snd_soc_dapm_route tfa98xx_dapm_routes_common[] = {
{ "OUTL", NULL, "AIF IN" },
{ "AIF OUT", NULL, "AEC Loopback" },
};
static const struct snd_soc_dapm_route tfa98xx_dapm_routes_saam[] = {
{ "AIF OUT", NULL, "SAAM MIC" },
};
static const struct snd_soc_dapm_route tfa98xx_dapm_routes_stereo[] = {
{ "OUTR", NULL, "AIF IN" },
};
static const struct snd_soc_dapm_route tfa9888_input_dapm_routes[] = {
{ "AIF OUT", NULL, "DMIC1" },
{ "AIF OUT", NULL, "DMIC2" },
{ "AIF OUT", NULL, "DMIC3" },
{ "AIF OUT", NULL, "DMIC4" },
};
static void tfa98xx_add_widgets(struct tfa98xx *tfa98xx)
{
#if KERNEL_VERSION(4, 2, 0) > LINUX_VERSION_CODE
struct snd_soc_dapm_context *dapm
= &tfa98xx->codec->dapm;
#else
struct snd_soc_dapm_context *dapm
= snd_soc_codec_get_dapm(tfa98xx->codec);
#endif
struct snd_soc_dapm_widget *widgets;
unsigned int num_dapm_widgets =
ARRAY_SIZE(tfa98xx_dapm_widgets_common);
widgets = devm_kzalloc(&tfa98xx->i2c->dev,
sizeof(struct snd_soc_dapm_widget) *
ARRAY_SIZE(tfa98xx_dapm_widgets_common),
GFP_KERNEL);
if (!widgets)
return;
memcpy(widgets, tfa98xx_dapm_widgets_common,
sizeof(struct snd_soc_dapm_widget) *
ARRAY_SIZE(tfa98xx_dapm_widgets_common));
tfa98xx_append_i2c_address(&tfa98xx->i2c->dev,
tfa98xx->i2c,
widgets,
num_dapm_widgets,
NULL,
0);
snd_soc_dapm_new_controls(dapm, widgets,
ARRAY_SIZE(tfa98xx_dapm_widgets_common));
snd_soc_dapm_add_routes(dapm, tfa98xx_dapm_routes_common,
ARRAY_SIZE(tfa98xx_dapm_routes_common));
if (tfa98xx->flags & TFA98XX_FLAG_STEREO_DEVICE) {
snd_soc_dapm_new_controls
(dapm, tfa98xx_dapm_widgets_stereo,
ARRAY_SIZE(tfa98xx_dapm_widgets_stereo));
snd_soc_dapm_add_routes
(dapm, tfa98xx_dapm_routes_stereo,
ARRAY_SIZE(tfa98xx_dapm_routes_stereo));
}
if (tfa98xx->flags & TFA98XX_FLAG_MULTI_MIC_INPUTS) {
snd_soc_dapm_new_controls
(dapm, tfa9888_dapm_inputs,
ARRAY_SIZE(tfa9888_dapm_inputs));
snd_soc_dapm_add_routes
(dapm, tfa9888_input_dapm_routes,
ARRAY_SIZE(tfa9888_input_dapm_routes));
}
if (tfa98xx->flags & TFA98XX_FLAG_SAAM_AVAILABLE) {
snd_soc_dapm_new_controls
(dapm, tfa98xx_dapm_widgets_saam,
ARRAY_SIZE(tfa98xx_dapm_widgets_saam));
snd_soc_dapm_add_routes
(dapm, tfa98xx_dapm_routes_saam,
ARRAY_SIZE(tfa98xx_dapm_routes_saam));
}
}
/* Match tfa98xx device structure with a valid DSP handle */
/* TODO can be removed once we pass the device struct in stead of handles
* The check in tfa98xx_register_dsp() is implicitly done
* in tfa_probe() /tfa98xx_cnt_slave2idx(_)
*/
static int tfa98xx_register_dsp(struct tfa98xx *tfa98xx)
{
int i, handle = -1;
u8 slave;
for (i = 0; i < tfa98xx_cnt_max_device(); i++) {
if (tfa_cont_get_slave(i, &slave) != TFA98XX_ERROR_OK)
goto reg_err;
pr_debug("%s: i=%d - dev = 0x%x\n", __func__, i, slave);
if (slave == tfa98xx->i2c->addr) {
handle = i;
break;
}
}
if (handle != -1) {
tfa98xx_devices[handle] = tfa98xx;
dev_info(&tfa98xx->i2c->dev,
"Registered DSP instance with handle %d\n",
handle);
tfa98xx_registered_handles++;
return handle;
}
reg_err:
dev_err(&tfa98xx->i2c->dev,
"Unable to match I2C address 0x%x with a container device\n",
tfa98xx->i2c->addr);
return -EINVAL;
}
static int tfa98xx_unregister_dsp(struct tfa98xx *tfa98xx)
{
if (tfa98xx->handle < 0)
return -EINVAL;
tfa98xx_registered_handles--;
tfa98xx_devices[tfa98xx->handle] = NULL;
dev_info(&tfa98xx->i2c->dev,
"Un-registered DSP instance with handle %d\n",
tfa98xx->handle);
return 0;
}
/* I2C wrapper functions */
enum tfa98xx_error tfa98xx_write_register16(tfa98xx_handle_t handle,
unsigned char subaddress,
unsigned short value)
{
enum tfa98xx_error error = TFA98XX_ERROR_OK;
struct tfa98xx *tfa98xx;
int ret;
int retries = I2C_RETRIES;
if (tfa98xx_devices[handle]) {
tfa98xx = tfa98xx_devices[handle];
if (!tfa98xx || !tfa98xx->regmap) {
pr_err("No tfa98xx regmap available\n");
return TFA98XX_ERROR_BAD_PARAMETER;
}
retry:
ret = regmap_write(tfa98xx->regmap, subaddress, value);
if (ret < 0) {
pr_warn("i2c error, retries left: %d\n", retries);
if (retries) {
retries--;
msleep(I2C_RETRY_DELAY);
goto retry;
}
return TFA98XX_ERROR_FAIL;
}
if (tfa98xx_kmsg_regs)
dev_dbg(&tfa98xx->i2c->dev,
"WR reg=0x%02x, val=0x%04x %s\n",
subaddress, value, ret < 0 ? "Error!!" : "");
if (tfa98xx_ftrace_regs)
tfa98xx_trace_printk
("\tWR reg=0x%02x, val=0x%04x %s\n",
subaddress, value, ret < 0 ? "Error!!" : "");
} else {
pr_err("No device available\n");
error = TFA98XX_ERROR_FAIL;
}
return error;
}
enum tfa98xx_error tfa98xx_read_register16(tfa98xx_handle_t handle,
unsigned char subaddress,
unsigned short *val)
{
enum tfa98xx_error error = TFA98XX_ERROR_OK;
struct tfa98xx *tfa98xx;
unsigned int value;
int retries = I2C_RETRIES;
int ret;
if (tfa98xx_devices[handle]) {
tfa98xx = tfa98xx_devices[handle];
if (!tfa98xx || !tfa98xx->regmap) {
pr_err("No tfa98xx regmap available\n");
return TFA98XX_ERROR_BAD_PARAMETER;
}
retry:
ret = regmap_read(tfa98xx->regmap, subaddress, &value);
if (ret < 0) {
pr_warn("i2c error at subaddress 0x%x, retries left: %d\n",
subaddress, retries);
if (retries) {
retries--;
msleep(I2C_RETRY_DELAY);
goto retry;
}
return TFA98XX_ERROR_FAIL;
}
*val = value & 0xffff;
if (tfa98xx_kmsg_regs)
dev_dbg(&tfa98xx->i2c->dev,
"RD reg=0x%02x, val=0x%04x %s\n",
subaddress, *val, ret < 0 ? "Error!!" : "");
if (tfa98xx_ftrace_regs)
tfa98xx_trace_printk
("\tRD reg=0x%02x, val=0x%04x %s\n",
subaddress, *val, ret < 0 ? "Error!!" : "");
} else {
pr_err("No device available\n");
error = TFA98XX_ERROR_FAIL;
}
return error;
}
enum tfa98xx_error tfa98xx_read_data(tfa98xx_handle_t handle,
unsigned char reg,
int len, unsigned char value[])
{
enum tfa98xx_error error = TFA98XX_ERROR_OK;
struct tfa98xx *tfa98xx;
struct i2c_client *tfa98xx_client;
int err;
int tries = 0;
struct i2c_msg msgs[] = {
{
.flags = 0,
.len = 1,
.buf = &reg,
}, {
.flags = I2C_M_RD,
.len = len,
.buf = value,
},
};
if (tfa98xx_devices[handle] && tfa98xx_devices[handle]->i2c) {
tfa98xx = tfa98xx_devices[handle];
tfa98xx_client = tfa98xx->i2c;
msgs[0].addr = tfa98xx_client->addr;
msgs[1].addr = tfa98xx_client->addr;
do {
err = i2c_transfer(tfa98xx_client->adapter, msgs,
ARRAY_SIZE(msgs));
if (err != ARRAY_SIZE(msgs))
msleep_interruptible(I2C_RETRY_DELAY);
} while ((err != ARRAY_SIZE(msgs)) && (++tries < I2C_RETRIES));
if (err != ARRAY_SIZE(msgs)) {
dev_err(&tfa98xx_client->dev,
"read transfer error%d\n", err);
error = TFA98XX_ERROR_FAIL;
}
if (tfa98xx_kmsg_regs)
dev_dbg(&tfa98xx_client->dev,
"RD-DAT reg=0x%02x, len=%d\n", reg, len);
if (tfa98xx_ftrace_regs)
tfa98xx_trace_printk
("\t\tRD-DAT reg=0x%02x, len=%d\n", reg, len);
} else {
pr_err("No device available\n");
error = TFA98XX_ERROR_FAIL;
}
return error;
}
enum tfa98xx_error tfa98xx_write_raw(tfa98xx_handle_t handle,
int len,
const unsigned char data[])
{
enum tfa98xx_error error = TFA98XX_ERROR_OK;
struct tfa98xx *tfa98xx;
int ret;
int retries = I2C_RETRIES;
if (tfa98xx_devices[handle]) {
tfa98xx = tfa98xx_devices[handle];
retry:
ret = i2c_master_send(tfa98xx->i2c, data, len);
if (ret < 0) {
pr_warn("i2c error, retries left: %d\n", retries);
if (retries) {
retries--;
msleep(I2C_RETRY_DELAY);
goto retry;
}
}
if (ret == len) {
if (tfa98xx_kmsg_regs)
dev_dbg(&tfa98xx->i2c->dev,
" WR-RAW len=%d\n", len);
if (tfa98xx_ftrace_regs)
tfa98xx_trace_printk
("\t\tWR-RAW len=%d\n", len);
return TFA98XX_ERROR_OK;
}
pr_err(" WR-RAW (len=%d) Error I2C send size mismatch %d\n",
len, ret);
error = TFA98XX_ERROR_FAIL;
} else {
pr_err("No device available\n");
error = TFA98XX_ERROR_FAIL;
}
return error;
}
/* Interrupts management */
static void tfa98xx_interrupt_enable_tfa2(struct tfa98xx *tfa98xx, bool enable)
{
#if defined(ENABLE_INTERRUPT_CONTROL)
/* Only for 0x72 we need to enable NOCLK interrupts */
if (tfa98xx->flags & TFA98XX_FLAG_REMOVE_PLOP_NOISE)
tfa_irq_ena(tfa98xx->handle, tfa9912_irq_stnoclk, enable);
tfa_irq_ena(tfa98xx->handle, tfa9912_irq_stmwsrc, enable);
if (tfa98xx->flags & TFA98XX_FLAG_LP_MODES) {
tfa_irq_ena(tfa98xx->handle, 36, enable);
/* FIXME: IELP0 does not excist for 9912 */
tfa_irq_ena(tfa98xx->handle, tfa9912_irq_stclpl, enable);
}
#endif
}
#if defined(USE_TFA9891)
/* Check if tap-detection can and shall be enabled.
* Configure SPK interrupt accordingly or setup polling mode
* Tap-detection shall be active if:
* - the service is enabled (tapdet_open), AND
* - the current profile is a tap-detection profile
* On TFA1 familiy of devices, activating tap-detection means enabling the SPK
* interrupt if available.
* We also update the tapdet_enabled and tapdet_poll variables.
*/
static void tfa98xx_tapdet_check_update(struct tfa98xx *tfa98xx)
{
unsigned int enable = false;
/* Support tap-detection on TFA1 family of devices */
if ((tfa98xx->flags & TFA98XX_FLAG_TAPDET_AVAILABLE) == 0)
return;
if (tfa98xx->tapdet_open &&
(tfa98xx->tapdet_profiles & (1 << tfa98xx_profile)))
enable = true;
if (!gpio_is_valid(tfa98xx->irq_gpio)) {
/* interrupt not available, setup polling mode */
tfa98xx->tapdet_poll = true;
if (enable)
queue_delayed_work(tfa98xx->tfa98xx_wq,
&tfa98xx->tapdet_work, HZ/10);
else
cancel_delayed_work_sync(&tfa98xx->tapdet_work);
dev_dbg(tfa98xx->codec->dev,
"Polling for tap-detection: %s (%d; 0x%x, %d)\n",
enable ? "enabled":"disabled",
tfa98xx->tapdet_open, tfa98xx->tapdet_profiles,
tfa98xx_profile);
} else {
dev_dbg(tfa98xx->codec->dev,
"Interrupt for tap-detection: %s (%d; 0x%x, %d)\n",
enable ? "enabled":"disabled",
tfa98xx->tapdet_open, tfa98xx->tapdet_profiles,
tfa98xx_profile);
/* enabled interrupt */
tfa_irq_ena(tfa98xx->handle, tfa9912_irq_sttapdet, enable);
}
/* check disabled => enabled transition to clear pending events */
if (!tfa98xx->tapdet_enabled && enable) {
/* clear pending event if any */
tfa_irq_clear(tfa98xx->handle, tfa9912_irq_sttapdet);
}
if (!tfa98xx->tapdet_poll)
tfa_irq_ena(tfa98xx->handle, tfa9912_irq_sttapdet, 1);
/* enable again */
}
#endif
/* global enable / disable interrupts */
static void tfa98xx_interrupt_enable(struct tfa98xx *tfa98xx, bool enable)
{
if (tfa98xx->flags & TFA98XX_FLAG_SKIP_INTERRUPTS)
return;
if (tfa98xx_dev_family(tfa98xx->handle) == 2)
tfa98xx_interrupt_enable_tfa2(tfa98xx, enable);
}
/* Firmware management
* Downloaded once only at module init
* FIXME: may need to review that (one per instance of codec device?)
*/
#if defined(USE_TFA9872)
static char *fw_name = "Tfa9872.cnt";
#endif
#if defined(USE_TFA9894)
static char *fw_name = "Tfa9894.cnt";
#endif
#if defined(USE_TFA9896)
static char *fw_name = "Tfa9896.cnt";
#endif
module_param(fw_name, charp, 0644);
MODULE_PARM_DESC(fw_name, "TFA98xx DSP firmware (container file) name.");
static struct tfa_container *container;
static void
tfa98xx_container_loaded(const struct firmware *cont, void *context)
{
struct tfa98xx *tfa98xx = context;
enum tfa_error tfa_err;
int container_size;
int handle;
#if defined(TFA_DBGFS_CHECK_MTPEX)
unsigned short value;
#endif
#if defined(TFADSP_DSP_BUFFER_POOL)
int index = 0;
#endif
mutex_lock(&probe_lock);
tfa98xx->dsp_fw_state = TFA98XX_DSP_FW_FAIL;
if (!cont) {
pr_err("Failed to read %s\n", fw_name);
mutex_unlock(&probe_lock);
return;
}
pr_debug("loaded %s - size: %zu\n", fw_name,
cont ? cont->size : 0);
container = kzalloc(cont->size, GFP_KERNEL);
if (!container) {
release_firmware(cont);
pr_err("Error allocating memory\n");
mutex_unlock(&probe_lock);
return;
}
container_size = cont->size;
memcpy(container, cont->data, container_size);
release_firmware(cont);
pr_debug("%.2s%.2s\n", container->version, container->subversion);
pr_debug("%.8s\n", container->customer);
pr_debug("%.8s\n", container->application);
pr_debug("%.8s\n", container->type);
pr_debug("%d ndev\n", container->ndev);
pr_debug("%d nprof\n", container->nprof);
tfa_set_partial_update(partial_enable);
dev_info(tfa98xx->dev, "%s partial update\n",
partial_enable ? "enable" : "disable");
tfa_err = tfa_load_cnt(container, container_size);
if (tfa_err != tfa_error_ok) {
dev_err(tfa98xx->dev, "Cannot load container file, aborting\n");
mutex_unlock(&probe_lock);
return;
}
/* register codec with dsp */
tfa98xx->handle = tfa98xx_register_dsp(tfa98xx);
if (tfa98xx->handle < 0) {
dev_err(tfa98xx->dev, "Cannot register with DSP, aborting\n");
tfa98xx->handle = -1;
mutex_unlock(&probe_lock);
return;
}
if (tfa_probe(tfa98xx->i2c->addr << 1, &handle) != TFA98XX_ERROR_OK) {
dev_err(tfa98xx->dev,
"Failed to probe TFA98xx @ 0x%.2x\n",
tfa98xx->i2c->addr);
mutex_unlock(&probe_lock);
return;
}
/* prefix is the application name from the cnt */
tfa_cont_get_app_name(tfa98xx->fw.name);
/* Override default profile if requested */
if (strcmp(dflt_prof_name, "")) {
unsigned int i;
for (i = 0; i < tfa_cont_max_profile(tfa98xx->handle); i++) {
if (strcmp(tfa_cont_profile_name(tfa98xx->handle, i),
dflt_prof_name) == 0) {
tfa98xx_profile = i;
dev_info(tfa98xx->dev,
"changing default profile to %s (%d)\n",
dflt_prof_name, tfa98xx_profile);
break;
}
}
if (i >= tfa_cont_max_profile(tfa98xx->handle))
dev_info(tfa98xx->dev,
"Default profile override failed (%s profile not found)\n",
dflt_prof_name);
}
tfa98xx->dsp_fw_state = TFA98XX_DSP_FW_OK;
#if defined(TFA_DBGFS_CHECK_MTPEX)
value = snd_soc_read(tfa98xx->codec, TFA98XX_KEY2_PROTECTED_MTP0);
if (value != -1) {
tfa98xx->calibrate_done =
(value & TFA98XX_KEY2_PROTECTED_MTP0_MTPEX_MSK) ? 1 : 0;
pr_info("[0x%x] calibrate_done = MTPEX (%d) 0x%04x\n",
tfa98xx->i2c->addr, tfa98xx->calibrate_done, value);
} else {
pr_info("[0x%x] error in reading MTPEX\n", tfa98xx->i2c->addr);
tfa98xx->calibrate_done = 0;
}
#else
tfa98xx->calibrate_done = 0;
#endif
pr_debug("Firmware init complete\n");
#if defined(TFADSP_DSP_BUFFER_POOL)
/* allocate buffer_pool */
if (tfa98xx->handle == 0) {
pr_info("Allocate buffer_pool\n");
for (index = 0; index < POOL_MAX_INDEX; index++)
tfa_buffer_pool(index,
buf_pool_size[index], POOL_ALLOC);
}
#endif
if (no_start != 0) {
mutex_unlock(&probe_lock);
return;
}
/* Only controls for master device */
if (tfa98xx->handle == 0)
tfa98xx_create_controls(tfa98xx);
tfa98xx_inputdev_check_register(tfa98xx);
#if defined(TFA_TEST_STARTING_AT_PROBING)
if (tfa_is_cold(tfa98xx->handle) == 0) {
pr_info("Warning: device 0x%.2x is still warm\n",
tfa98xx->i2c->addr);
tfa_reset();
}
if (tfa98xx->handle == 0) {
mutex_lock(&tfa98xx->dsp_lock);
tfa_err = tfa98xx_tfa_start
(tfa98xx, tfa98xx_profile, tfa98xx_vsteps);
if ((int)tfa_err == TFA98XX_ERROR_OK)
tfa98xx->dsp_init = TFA98XX_DSP_INIT_DONE;
else if ((int)tfa_err == TFA98XX_ERROR_NOT_SUPPORTED)
tfa98xx->dsp_fw_state = TFA98XX_DSP_FW_FAIL;
mutex_unlock(&tfa98xx->dsp_lock);
}
#else
#if defined(USE_TFA9872)
if (tfa98xx->handle == 0)
#endif
{
enum tfa98xx_error err;
int is_cont_open = 0;
mutex_lock(&tfa98xx->dsp_lock);
is_cont_open = tfa98xx_handle_is_open(tfa98xx->handle);
if (!is_cont_open) {
err = tfa_cont_open(tfa98xx->handle);
if (err != TFA98XX_ERROR_OK)
return;
}
err = tfa_load_cnt_regs
(tfa98xx->handle, tfa98xx_profile);
if (err == TFA98XX_ERROR_OK)
pr_info("succeeded in loading regs on device 0x%.2x\n",
tfa98xx->i2c->addr);
else
pr_info("Warning: failed in loading regs on device 0x%.2x\n",
tfa98xx->i2c->addr);
if (!is_cont_open)
err = tfa_cont_close(tfa98xx->handle);
mutex_unlock(&tfa98xx->dsp_lock);
}
#endif
tfa98xx_interrupt_enable(tfa98xx, true);
mutex_unlock(&probe_lock);
}
static int tfa98xx_load_container(struct tfa98xx *tfa98xx)
{
tfa98xx->dsp_fw_state = TFA98XX_DSP_FW_PENDING;
return request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
fw_name, tfa98xx->dev, GFP_KERNEL,
tfa98xx, tfa98xx_container_loaded);
}
#if defined(USE_TFA9891)
static void tfa98xx_tapdet(struct tfa98xx *tfa98xx)
{
unsigned int tap_pattern;
int btn;
/* check tap pattern (BTN_0 is "error" wrong tap indication */
tap_pattern = tfa_get_tap_pattern(tfa98xx->handle);
switch (tap_pattern) {
case 0xffffffff:
pr_info("More than 4 taps detected! (flagTapPattern = -1)\n");
btn = BTN_0;
break;
case 0xfffffffe:
case 0xfe:
pr_info("Illegal tap detected!\n");
btn = BTN_0;
break;
case 0:
pr_info("Unrecognized pattern! (flagTapPattern = 0)\n");
btn = BTN_0;
break;
default:
pr_info("Detected pattern: %d\n", tap_pattern);
btn = BTN_0 + tap_pattern;
break;
}
input_report_key(tfa98xx->input, btn, 1);
input_report_key(tfa98xx->input, btn, 0);
input_sync(tfa98xx->input);
/* acknowledge event done by clearing interrupt */
}
static void tfa98xx_tapdet_work(struct work_struct *work)
{
struct tfa98xx *tfa98xx;
/* TODO check is this is still needed for tap polling */
tfa98xx = container_of(work, struct tfa98xx, tapdet_work.work);
if (tfa_irq_get(tfa98xx->handle, tfa9912_irq_sttapdet))
tfa98xx_tapdet(tfa98xx);
queue_delayed_work(tfa98xx->tfa98xx_wq, &tfa98xx->tapdet_work, HZ/10);
}
#endif
static void tfa98xx_monitor(struct work_struct *work)
{
struct tfa98xx *tfa98xx;
u16 val;
#if defined(USE_TFA9872)
tfa98xx = container_of(work, struct tfa98xx, monitor_work.work);
/* Check for tap-detection - bypass monitor if it is active */
if (!tfa98xx->input) {
/*
* check IC status bits: cold start
* and DSP watch dog bit to re init
*/
val = snd_soc_read(tfa98xx->codec, TFA98XX_STATUS_FLAGS0);
pr_debug("STATUS_FLAG0: 0x%04x\n", val);
if (tfa98xx->pstream != 0) {
if (!(TFA98XX_STATUS_FLAGS0_SWS & val))
pr_err("ERROR: SWS\n");
/* Check secondary errors */
if (!(val & TFA98XX_STATUS_FLAGS0_CLKS) ||
!(val & TFA98XX_STATUS_FLAGS0_UVDS) ||
!(val & TFA98XX_STATUS_FLAGS0_OVDS) ||
!(val & TFA98XX_STATUS_FLAGS0_OTDS) ||
!(val & TFA98XX_STATUS_FLAGS0_PLLS) ||
(!(tfa98xx->flags & TFA98XX_FLAG_TDM_DEVICE) &&
!(val & TFA98XX_STATUS_FLAGS0_VDDS)))
pr_err("Misc errors detected: STATUS_FLAG0 = 0x%x\n",
val);
if (tfa98xx->flags & TFA98XX_FLAG_TDM_DEVICE) {
val = snd_soc_read
(tfa98xx->codec, TFA98XX_STATUS_FLAGS1);
pr_debug("STATUS_FLAG1: 0x%04x\n", val);
if (val & TFA98XX_STATUS_FLAGS1_TDMERR)
pr_info("TDM status: 0x%x (ref. 0x1: synchronized)\n",
(val & TFA98XX_STATUS_FLAGS1_TDMSTAT)
>> TFA98XX_STATUS_FLAGS1_TDMSTAT_POS);
if (val & TFA98XX_STATUS_FLAGS1_TDMLUTER)
pr_info("TDM size is not configurable with nbck/nslots: 0x%x\n",
val);
}
}
/* further debugging */
val = snd_soc_read(tfa98xx->codec, TFA98XX_SYS_CONTROL0);
pr_debug("SYS_CONTROL0: 0x%04x\n", val);
val = snd_soc_read(tfa98xx->codec, TFA98XX_SYS_CONTROL1);
pr_debug("SYS_CONTROL1: 0x%04x\n", val);
val = snd_soc_read(tfa98xx->codec, TFA98XX_SYS_CONTROL2);
pr_debug("SYS_CONTROL2: 0x%04x\n", val);
val = snd_soc_read(tfa98xx->codec, TFA98XX_CLOCK_CONTROL);
pr_debug("CLOCK_CONTROL: 0x%04x\n", val);
val = snd_soc_read(tfa98xx->codec, TFA98XX_STATUS_FLAGS4);
pr_debug("STATUS_FLAG4: 0x%04x\n", val);
val = snd_soc_read(tfa98xx->codec, TFA98XX_TDM_CONFIG0);
pr_debug("TDM_CONFIG0: 0x%04x\n", val);
}
#endif
#if defined(USE_TFA9896)
int i;
for (i = 0; i < tfa98xx_cnt_max_device(); i++) {
if (!tfa98xx_devices[i])
continue;
tfa98xx = tfa98xx_devices[i];
/* debugging */
val = snd_soc_read(tfa98xx->codec, 0x00);
pr_debug("[%d] System Status 0x00: 0x%04x\n", i, val);
val = snd_soc_read(tfa98xx->codec, 0x04);
pr_debug("[%d] Audio Control 0x04: 0x%04x\n", i, val);
val = snd_soc_read(tfa98xx->codec, 0x09);
pr_debug("[%d] System Control 0x09: 0x%04x\n", i, val);
val = snd_soc_read(tfa98xx->codec, 0x15);
pr_debug("[%d] TDM Status 0x15: 0x%04x\n", i, val);
}
#endif
/* reschedule */
queue_delayed_work(tfa98xx->tfa98xx_wq, &tfa98xx->monitor_work, 5*HZ);
}
static void tfa98xx_dsp_init(struct tfa98xx *tfa98xx)
{
int ret;
bool failed = false;
bool reschedule = false;
if (tfa98xx->dsp_fw_state != TFA98XX_DSP_FW_OK) {
pr_debug("Skipping tfa_start (no FW: %d)\n",
tfa98xx->dsp_fw_state);
return;
}
if (tfa98xx->dsp_init == TFA98XX_DSP_INIT_DONE) {
pr_debug("Stream already started, skipping DSP power-on\n");
return;
}
mutex_lock(&tfa98xx->dsp_lock);
pr_info("%s: ...\n", __func__);
/* further debugging */
tfa_verbose(1);
tfa_cont_verbose(1);
tfa98xx->dsp_init = TFA98XX_DSP_INIT_PENDING;
if (tfa98xx->init_count < TF98XX_MAX_DSP_START_TRY_COUNT) {
/* directly try to start DSP */
ret = tfa98xx_tfa_start
(tfa98xx, tfa98xx_profile, tfa98xx_vsteps);
if (ret == TFA98XX_ERROR_NOT_SUPPORTED) {
tfa98xx->dsp_fw_state = TFA98XX_DSP_FW_FAIL;
dev_err(&tfa98xx->i2c->dev, "Failed starting device\n");
failed = true;
} else if (ret != TFA98XX_ERROR_OK) {
/* It may fail as we may not have a valid clock at that
* time, so re-schedule and re-try later.
*/
dev_err(&tfa98xx->i2c->dev,
"tfa_start failed! (err %d) - %d\n",
ret, tfa98xx->init_count);
reschedule = true;
} else {
/* Subsystem ready, tfa init complete */
dev_dbg(&tfa98xx->i2c->dev,
"tfa_start success (%d)\n",
tfa98xx->init_count);
/* cancel other pending init works */
cancel_delayed_work(&tfa98xx->init_work);
tfa98xx->init_count = 0;
/*
* start monitor thread to check IC status bit
* periodically, and re-init IC to recover if
* needed.
*/
queue_delayed_work(tfa98xx->tfa98xx_wq,
&tfa98xx->monitor_work,
1*HZ);
}
} else {
/* exceeded max number ot start tentatives, cancel start */
dev_err(&tfa98xx->i2c->dev,
"Failed starting device (%d)\n",
tfa98xx->init_count);
failed = true;
}
if (reschedule) {
/* reschedule this init work for later */
queue_delayed_work(tfa98xx->tfa98xx_wq,
&tfa98xx->init_work,
msecs_to_jiffies(5));
tfa98xx->init_count++;
}
if (failed) {
tfa98xx->dsp_init = TFA98XX_DSP_INIT_FAIL;
/* cancel other pending init works */
cancel_delayed_work(&tfa98xx->init_work);
tfa98xx->init_count = 0;
}
mutex_unlock(&tfa98xx->dsp_lock);
}
static void tfa98xx_dsp_init_work(struct work_struct *work)
{
struct tfa98xx *tfa98xx =
container_of(work, struct tfa98xx, init_work.work);
/* Only do dsp init for last device */
if (tfa98xx->handle != tfa98xx_cnt_max_device() - 1)
return;
tfa98xx_dsp_init(tfa98xx);
}
static void tfa98xx_interrupt(struct work_struct *work)
{
struct tfa98xx *tfa98xx =
container_of(work, struct tfa98xx, interrupt_work.work);
pr_info("\n");
#if defined(USE_TFA9891)
if (tfa98xx->flags & TFA98XX_FLAG_TAPDET_AVAILABLE) {
/* check for tap interrupt */
if (tfa_irq_get(tfa98xx->handle, tfa9912_irq_sttapdet)) {
tfa98xx_tapdet(tfa98xx);
/* clear interrupt */
tfa_irq_clear(tfa98xx->handle, tfa9912_irq_sttapdet);
}
} /* TFA98XX_FLAG_TAPDET_AVAILABLE */
#endif
if (tfa98xx->flags & TFA98XX_FLAG_REMOVE_PLOP_NOISE) {
/* Remove sticky bit by reading it once */
TFA_GET_BF(tfa98xx->handle, NOCLK);
/* No clock detected */
if (tfa_irq_get(tfa98xx->handle, tfa9912_irq_stnoclk)) {
int no_clk = TFA_GET_BF(tfa98xx->handle, NOCLK);
/* Detect for clock is lost! (clock is not stable) */
if ((tfa98xx->handle == 0) && (no_clk == 1)) {
enum tfa98xx_error err;
/* Clock lost. Set I2CR to remove POP noise */
pr_info("No clock detected. Resetting I2CR to avoid pop on 72!\n");
err = tfa98xx_tfa_start
(tfa98xx, tfa98xx_profile,
tfa98xx_vsteps);
if (err != TFA98XX_ERROR_OK)
pr_err("Error loading i2c registers (tfa_start), err=%d\n",
err);
else
pr_info("Setting i2c registers after I2CR successfully\n");
/* This is only for SAAM on the 72.
* Since the NOCLK interrupt is only enabled
* for 72 this is the place
* However: Not tested yet! But also does
* not harm normal flow!
*/
if (strnstr(tfa_cont_profile_name
(tfa98xx->handle, tfa98xx_profile),
".saam", strlen(tfa_cont_profile_name
(tfa98xx->handle, tfa98xx_profile)))) {
pr_info("Powering down from a SAAM profile, workaround PLMA4766 used!\n");
}
}
/* If clk is stable set polarity
* to check for LOW (no clock)
*/
tfa_irq_set_pol(tfa98xx->handle,
tfa9912_irq_stnoclk, (no_clk == 0));
/* clear interrupt */
tfa_irq_clear(tfa98xx->handle, tfa9912_irq_stnoclk);
}
} /* TFA98XX_FLAG_REMOVE_PLOP_NOISE */
/* manager wait for source state */
if (tfa_irq_get(tfa98xx->handle, tfa9912_irq_stmwsrc)) {
int manwait1 = TFA_GET_BF(tfa98xx->handle, MANWAIT1);
if (manwait1 > 0) {
pr_info("entering wait for source state\n");
tfa98xx->count_wait_for_source_state++;
/* set AMPC and AMPE to make sure the amp is enabled */
pr_info("setting AMPC and AMPE to 1 (default)\n");
} else {
/* Now we can switch profile with internal clock
* it is not required to call tfa_start
*/
pr_info("leaving wait for source state\n");
if (tfa98xx->set_mtp_cal) {
enum tfa98xx_error err;
tfa98xx_open(tfa98xx->handle);
err = tfa_mtp_set_calibration
(tfa98xx->handle, tfa98xx->cal_data);
tfa98xx_close(tfa98xx->handle);
if (err != TFA98XX_ERROR_OK) {
pr_err("Error, setting calibration value in mtp, err=%d\n",
err);
} else {
tfa98xx->set_mtp_cal = false;
pr_info("Calibration value (%d) set in mtp\n",
tfa98xx->cal_data);
}
}
}
tfa_irq_set_pol(tfa98xx->handle, tfa9912_irq_stmwsrc,
(manwait1 == 0));
/* clear interrupt */
tfa_irq_clear(tfa98xx->handle, tfa9912_irq_stmwsrc);
}
if (tfa98xx->flags & TFA98XX_FLAG_LP_MODES) {
const int irq_stclp0 = 36;
/* FIXME: this 72 interrupt does not excist for 9912 */
if (tfa_irq_get(tfa98xx->handle, irq_stclp0)) {
int lp0 = TFA_GET_BF(tfa98xx->handle, LP0);
if (lp0 > 0)
pr_info("lowpower mode 0 detected\n");
else
pr_info("lowpower mode 0 not detected\n");
tfa_irq_set_pol(tfa98xx->handle, irq_stclp0,
(lp0 == 0));
/* clear interrupt */
tfa_irq_clear(tfa98xx->handle, irq_stclp0);
}
if (tfa_irq_get(tfa98xx->handle, tfa9912_irq_stclpl)) {
int lp1 = TFA_GET_BF(tfa98xx->handle, LP1);
if (lp1 > 0)
pr_info("lowpower mode 1 detected\n");
else
pr_info("lowpower mode 1 not detected\n");
tfa_irq_set_pol(tfa98xx->handle, tfa9912_irq_stclpl,
(lp1 == 0));
/* clear interrupt */
tfa_irq_clear(tfa98xx->handle, tfa9912_irq_stclpl);
}
} /* TFA98XX_FLAG_LP_MODES */
/* unmask interrupts masked in IRQ handler */
tfa_irq_unmask(tfa98xx->handle);
}
static int tfa98xx_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_codec *codec = dai->codec;
struct tfa98xx *tfa98xx = snd_soc_codec_get_drvdata(codec);
int idx = 0;
#if !defined(TFA_FULL_RATE_SUPPORT_WITH_POST_CONVERSION)
unsigned int sr;
int len, prof, nprof = tfa_cont_max_profile(tfa98xx->handle);
#if defined(TFADSP_DSP_BUFFER_POOL)
char basename[MAX_CONTROL_NAME] = {0};
#else
char *basename;
#endif
#endif /* TFA_FULL_RATE_SUPPORT_WITH_POST_CONVERSION */
u64 formats;
int err;
/*
* Support CODEC to CODEC links,
* these are called with a NULL runtime pointer.
*/
if (!substream->runtime)
return 0;
if (pcm_no_constraint != 0)
return 0;
switch (pcm_sample_format) {
case 1:
formats = SNDRV_PCM_FMTBIT_S24_LE;
break;
case 2:
formats = SNDRV_PCM_FMTBIT_S32_LE;
break;
default:
formats = SNDRV_PCM_FMTBIT_S16_LE;
break;
}
err = snd_pcm_hw_constraint_mask64(substream->runtime,
SNDRV_PCM_HW_PARAM_FORMAT, formats);
if (err < 0)
return err;
if (no_start != 0)
return 0;
#if !defined(TFA_FULL_RATE_SUPPORT_WITH_POST_CONVERSION)
#if !defined(TFADSP_DSP_BUFFER_POOL)
basename = kzalloc(MAX_CONTROL_NAME, GFP_KERNEL);
if (!basename)
return -ENOMEM;
#endif
/* copy profile name into basename until the . */
get_profile_basename
(basename,
tfa_cont_profile_name(tfa98xx->handle, tfa98xx_profile));
len = strlen(basename);
#endif /* TFA_FULL_RATE_SUPPORT_WITH_POST_CONVERSION */
/* loop over all profiles and get the supported samples rate(s) from
* the profiles with the same basename
*/
tfa98xx->rate_constraint.list = &tfa98xx->rate_constraint_list[0];
tfa98xx->rate_constraint.count = 0;
#if !defined(TFA_FULL_RATE_SUPPORT_WITH_POST_CONVERSION)
for (prof = 0; prof < nprof; prof++) {
if (strncmp(basename,
tfa_cont_profile_name(tfa98xx->handle, prof), len)
== 0) {
/* Check which sample rate is supported
* with current profile, and enforce this.
*/
sr = tfa98xx_get_profile_sr(tfa98xx->handle, prof);
if (!sr)
dev_info(codec->dev,
"Unable to identify supported sample rate\n");
if (tfa98xx->rate_constraint.count
>= TFA98XX_NUM_RATES) {
dev_err(codec->dev, "too many sample rates\n");
} else {
tfa98xx->rate_constraint_list[idx++] = sr;
tfa98xx->rate_constraint.count += 1;
}
}
}
#if !defined(TFADSP_DSP_BUFFER_POOL)
kfree(basename);
#endif
return snd_pcm_hw_constraint_list(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE,
&tfa98xx->rate_constraint);
#else
pr_info("%s: add all the rates in the list\n", __func__);
for (idx = 0; idx < ARRAY_SIZE(rate_to_fssel); idx++) {
tfa98xx->rate_constraint_list[idx] = rate_to_fssel[idx].rate;
tfa98xx->rate_constraint.count += 1;
}
pr_info("%s: skip setting constraint, assuming fixed format\n",
__func__);
return 0;
#endif /* TFA_FULL_RATE_SUPPORT_WITH_POST_CONVERSION */
}
static int tfa98xx_set_dai_sysclk(struct snd_soc_dai *codec_dai,
int clk_id, unsigned int freq, int dir)
{
struct tfa98xx *tfa98xx = snd_soc_codec_get_drvdata(codec_dai->codec);
tfa98xx->sysclk = freq;
return 0;
}
static int tfa98xx_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
unsigned int rx_mask, int slots, int slot_width)
{
pr_debug("\n");
return 0;
}
static int tfa98xx_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct tfa98xx *tfa98xx = snd_soc_codec_get_drvdata(dai->codec);
struct snd_soc_codec *codec = dai->codec;
pr_debug("fmt=0x%x\n", fmt);
/* Supported mode: regular I2S, slave, or PDM */
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
if ((fmt & SND_SOC_DAIFMT_MASTER_MASK)
!= SND_SOC_DAIFMT_CBS_CFS) {
dev_err(codec->dev, "Invalid Codec master mode\n");
return -EINVAL;
}
break;
case SND_SOC_DAIFMT_PDM:
break;
default:
dev_err(codec->dev, "Unsupported DAI format %d\n",
fmt & SND_SOC_DAIFMT_FORMAT_MASK);
return -EINVAL;
}
tfa98xx->audio_mode = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
return 0;
}
static int tfa98xx_get_fssel(unsigned int rate)
{
int i;
for (i = 0; i < ARRAY_SIZE(rate_to_fssel); i++)
if (rate_to_fssel[i].rate == rate)
return rate_to_fssel[i].fssel;
return -EINVAL;
}
static int tfa98xx_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_codec *codec = dai->codec;
struct tfa98xx *tfa98xx = snd_soc_codec_get_drvdata(codec);
unsigned int rate;
int prof_idx;
/* Supported */
rate = params_rate(params);
pr_debug("Requested rate: %d, sample size: %d, physical size: %d\n",
rate, snd_pcm_format_width(params_format(params)),
snd_pcm_format_physical_width(params_format(params)));
#if defined(TFA_FULL_RATE_SUPPORT_WITH_POST_CONVERSION)
pr_info("forced to change rate: %d to %d\n", rate, sr_converted);
rate = sr_converted;
#endif
if (no_start != 0)
return 0;
/* check if samplerate is supported for this mixer profile */
prof_idx = get_profile_id_for_sr(tfa98xx_mixer_profile, rate);
if (prof_idx < 0) {
pr_err("tfa98xx: invalid sample rate %d.\n", rate);
return -EINVAL;
}
pr_debug("mixer profile:container profile = [%d:%d]\n",
tfa98xx_mixer_profile, prof_idx);
/* update 'real' profile (container profile) */
tfa98xx_profile = prof_idx;
/* update to new rate */
tfa98xx->rate = rate;
return 0;
}
static int tfa98xx_mute(struct snd_soc_dai *dai, int mute, int stream)
{
struct snd_soc_codec *codec = dai->codec;
struct tfa98xx *tfa98xx = snd_soc_codec_get_drvdata(codec);
dev_dbg(&tfa98xx->i2c->dev,
"%s: state: %d (stream = %d)\n", __func__, mute, stream);
if (no_start) {
pr_debug("no_start parameter set no tfa_start or tfa_stop, returning\n");
return 0;
}
_tfa98xx_mute(tfa98xx, mute, stream);
return 0;
}
static int _tfa98xx_mute(struct tfa98xx *tfa98xx, int mute, int stream)
{
#if defined(TFA_USE_PSTREAM_ONLY)
if (handles_local[0].ext_dsp == 0) /* master device only */
if (stream == SNDRV_PCM_STREAM_CAPTURE) {
pr_info("%s: skip cstream if running without ext_dsp\n",
__func__);
return 0;
}
#endif
if (mute) {
/* stop DSP only when both playback and capture streams
* are deactivated
*/
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
if (tfa98xx->pstream == 0) {
pr_debug("mute:%d [pstream duplicated]\n",
mute);
return 0;
}
tfa98xx->pstream = 0;
} else if (stream == SNDRV_PCM_STREAM_CAPTURE) {
if (tfa98xx->cstream == 0) {
pr_debug("mute:%d [cstream duplicated]\n",
mute);
return 0;
}
tfa98xx->cstream = 0;
}
pr_info("mute:%d [pstream %d, cstream %d, samstream %d]\n",
mute,
tfa98xx->pstream, tfa98xx->cstream, tfa98xx->samstream);
mutex_lock(&tfa98xx->dsp_lock);
tfa98xx_set_stream_state((tfa98xx->pstream & BIT_PSTREAM)
|((tfa98xx->cstream<<1) & BIT_CSTREAM)
|((tfa98xx->samstream<<2) & BIT_SAMSTREAM));
mutex_unlock(&tfa98xx->dsp_lock);
/* case: both p/cstream (either) and samstream are off
* if (!(tfa98xx->pstream == 0 || tfa98xx->cstream == 0)
* || (tfa98xx->samstream != 0)) {
* pr_info("mute is suspended until playback/saam are off\n");
* return 0;
* }
*/
/* wait until both main streams (pstream / samstream) are off */
if ((tfa98xx->pstream == 0)
&& (tfa98xx->samstream == 0)) {
pr_info("mute is triggered\n");
} else {
pr_info("mute is suspended when only cstream is off\n");
return 0;
}
#if defined(TFA_BLACKBOX_LOGGING)
if ((handles_local[0].log_get_cb)
&& (tfa98xx->pstream ^ tfa98xx->cstream)) {
mutex_lock(&tfa98xx->dsp_lock);
if (tfa98xx->pstream == 0) {
/* force to set pstream to enable messaging */
tfa98xx_set_stream_state
(BIT_PSTREAM
|((tfa98xx->cstream<<1) & BIT_CSTREAM)
|((tfa98xx->samstream<<2)
& BIT_SAMSTREAM));
}
handles_local[0].log_get_cb();
/* restore to reset pstream */
tfa98xx_set_stream_state
((tfa98xx->pstream & BIT_PSTREAM)
|((tfa98xx->cstream<<1) & BIT_CSTREAM)
|((tfa98xx->samstream<<2)
& BIT_SAMSTREAM));
mutex_unlock(&tfa98xx->dsp_lock);
}
#endif
cancel_delayed_work_sync(&tfa98xx->monitor_work);
cancel_delayed_work_sync(&tfa98xx->init_work);
if (tfa98xx->dsp_fw_state != TFA98XX_DSP_FW_OK)
return 0;
mutex_lock(&tfa98xx->dsp_lock);
pr_info("%s: stop tfa amp\n", __func__);
tfa_stop();
#if defined(TFA_ACTIVATED_ASYNCHRONOUSLY)
pr_info("%s: [0x%x] reset pending stream (%d)\n",
__func__, tfa98xx->i2c->addr, stream);
if (stream == SNDRV_PCM_STREAM_PLAYBACK)
pending_pstream[tfa98xx->handle] = 0;
#endif
tfa98xx->dsp_init = TFA98XX_DSP_INIT_STOPPED;
mutex_unlock(&tfa98xx->dsp_lock);
} else {
#if defined(TFA_ACTIVATED_ASYNCHRONOUSLY)
if (ready_to_activate == 0) {
pr_info("%s: [0x%x] skip if ready_to_active is not set (%d)\n",
__func__, tfa98xx->i2c->addr, stream);
if (stream == SNDRV_PCM_STREAM_PLAYBACK)
pending_pstream[tfa98xx->handle] = 1;
return 0;
}
pr_info("%s: [0x%x] unmute as ready_to_active is set (%d)\n",
__func__, tfa98xx->i2c->addr, stream);
pending_pstream[tfa98xx->handle] = 0;
#endif
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
if (tfa98xx->pstream == 1) {
pr_debug("mute:%d [pstream duplicated]\n",
mute);
return 0;
}
tfa98xx->pstream = 1;
} else if (stream == SNDRV_PCM_STREAM_CAPTURE) {
if (tfa98xx->cstream == 1) {
pr_debug("mute:%d [cstream duplicated]\n",
mute);
return 0;
}
tfa98xx->cstream = 1;
}
pr_info("mute:%d [pstream %d, cstream %d, samstream %d]\n",
mute,
tfa98xx->pstream, tfa98xx->cstream, tfa98xx->samstream);
mutex_lock(&tfa98xx->dsp_lock);
tfa98xx_set_stream_state((tfa98xx->pstream & BIT_PSTREAM)
|((tfa98xx->cstream<<1) & BIT_CSTREAM)
|((tfa98xx->samstream<<2) & BIT_SAMSTREAM));
mutex_unlock(&tfa98xx->dsp_lock);
/* case: either p/cstream (both) or samstream is on
* if ((tfa98xx->pstream != 0 && tfa98xx->pstream != 0)
* || tfa98xx->samstream != 0) {
*/
/* wait until DSP is ready for initialization */
if (stream == SNDRV_PCM_STREAM_PLAYBACK
|| stream == SNDRV_PCM_STREAM_SAAM) {
pr_info("unmute is triggered\n");
} else {
pr_debug("unmute is suspended when only cstream is on\n");
return 0;
}
/* Only do dsp init for last device */
if (tfa98xx->handle != tfa98xx_cnt_max_device() - 1)
return 0;
/* Start DSP */
pr_info("%s: start tfa amp\n", __func__);
#if defined(USE_TFA9896)
if (tfa98xx_get_profile_chsa
(tfa98xx->handle, tfa98xx_profile) < 2) {
pr_debug("%s: bypass case\n", __func__);
tfa98xx_dsp_init(tfa98xx);
} else {
pr_debug("%s: DSP-enabled case\n", __func__);
if (tfa98xx->dsp_init != TFA98XX_DSP_INIT_PENDING)
queue_delayed_work(tfa98xx->tfa98xx_wq,
&tfa98xx->init_work, 0);
}
#else
if (tfa98xx->dsp_init != TFA98XX_DSP_INIT_PENDING)
queue_delayed_work(tfa98xx->tfa98xx_wq,
&tfa98xx->init_work, 0);
#endif
}
return 0;
}
static const struct snd_soc_dai_ops tfa98xx_dai_ops = {
.startup = tfa98xx_startup,
.set_fmt = tfa98xx_set_fmt,
.set_sysclk = tfa98xx_set_dai_sysclk,
.set_tdm_slot = tfa98xx_set_tdm_slot,
.hw_params = tfa98xx_hw_params,
.mute_stream = tfa98xx_mute,
};
static struct snd_soc_dai_driver tfa98xx_dai[] = {
{
.name = "tfa98xx-aif",
.base = TFA98XX_TDM_CONFIG0 - 1,
.id = 1,
.playback = {
.stream_name = "AIF Playback",
.channels_min = 1,
.channels_max = MAX_HANDLES,
.rates = TFA98XX_RATES,
.formats = TFA98XX_FORMATS,
},
.capture = {
.stream_name = "AIF Capture",
.channels_min = 1,
.channels_max = MAX_HANDLES,
.rates = TFA98XX_RATES,
.formats = TFA98XX_FORMATS,
},
.ops = &tfa98xx_dai_ops,
#if !defined(TFA_USE_PSTREAM_ONLY)
.symmetric_rates = 1,
.symmetric_channels = 1,
.symmetric_samplebits = 1,
#endif
},
};
static int tfa98xx_probe(struct snd_soc_codec *codec)
{
struct tfa98xx *tfa98xx = snd_soc_codec_get_drvdata(codec);
int ret;
pr_debug("\n");
/* setup work queue, will be used to initial DSP on first boot up */
tfa98xx->tfa98xx_wq = create_singlethread_workqueue("tfa98xx");
if (!tfa98xx->tfa98xx_wq)
return -ENOMEM;
INIT_DELAYED_WORK(&tfa98xx->init_work, tfa98xx_dsp_init_work);
INIT_DELAYED_WORK(&tfa98xx->monitor_work, tfa98xx_monitor);
INIT_DELAYED_WORK(&tfa98xx->interrupt_work, tfa98xx_interrupt);
#if defined(USE_TFA9891)
INIT_DELAYED_WORK(&tfa98xx->tapdet_work, tfa98xx_tapdet_work);
#endif
tfa98xx->codec = codec;
ret = tfa98xx_load_container(tfa98xx);
pr_debug("Container loading requested: %d\n", ret);
tfa98xx_add_widgets(tfa98xx);
dev_info(codec->dev, "tfa98xx codec registered (%s)",
tfa98xx->fw.name);
return ret;
}
static int tfa98xx_remove(struct snd_soc_codec *codec)
{
struct tfa98xx *tfa98xx = snd_soc_codec_get_drvdata(codec);
#if defined(TFADSP_DSP_BUFFER_POOL)
int index = 0;
#endif
pr_debug("\n");
tfa98xx_interrupt_enable(tfa98xx, false);
tfa98xx_inputdev_unregister(tfa98xx);
cancel_delayed_work_sync(&tfa98xx->interrupt_work);
cancel_delayed_work_sync(&tfa98xx->monitor_work);
cancel_delayed_work_sync(&tfa98xx->init_work);
#if defined(USE_TFA9891)
cancel_delayed_work_sync(&tfa98xx->tapdet_work);
#endif
if (tfa98xx->tfa98xx_wq)
destroy_workqueue(tfa98xx->tfa98xx_wq);
#if defined(TFADSP_DSP_BUFFER_POOL)
/* deallocate buffer_pool */
pr_info("Deallocate buffer_pool\n");
for (index = 0; index < POOL_MAX_INDEX; index++)
tfa_buffer_pool(index, 0, POOL_FREE);
#endif
return 0;
}
struct regmap *tfa98xx_get_regmap(struct device *dev)
{
struct tfa98xx *tfa98xx = dev_get_drvdata(dev);
return tfa98xx->regmap;
}
static struct snd_soc_codec_driver soc_codec_dev_tfa98xx = {
.probe = tfa98xx_probe,
.remove = tfa98xx_remove,
.get_regmap = tfa98xx_get_regmap,
};
static bool tfa98xx_writeable_register(struct device *dev, unsigned int reg)
{
/* enable read access for all registers */
return 1;
}
static bool tfa98xx_readable_register(struct device *dev, unsigned int reg)
{
/* enable read access for all registers */
return 1;
}
static bool tfa98xx_volatile_register(struct device *dev, unsigned int reg)
{
/* enable read access for all registers */
return 1;
}
static const struct regmap_config tfa98xx_regmap = {
.reg_bits = 8,
.val_bits = 16,
.max_register = TFA98XX_MAX_REGISTER,
.writeable_reg = tfa98xx_writeable_register,
.readable_reg = tfa98xx_readable_register,
.volatile_reg = tfa98xx_volatile_register,
.cache_type = REGCACHE_NONE,
};
static void tfa98xx_irq_tfa2(struct tfa98xx *tfa98xx)
{
pr_info("\n");
/*
* mask interrupts
* will be unmasked after handling interrupts in workqueue
*/
tfa_irq_mask(tfa98xx->handle);
queue_delayed_work(tfa98xx->tfa98xx_wq, &tfa98xx->interrupt_work, 0);
}
static irqreturn_t tfa98xx_irq(int irq, void *data)
{
struct tfa98xx *tfa98xx = data;
if (tfa98xx_dev_family(tfa98xx->handle) == 2)
tfa98xx_irq_tfa2(tfa98xx);
return IRQ_HANDLED;
}
static int tfa98xx_ext_reset(struct tfa98xx *tfa98xx)
{
if (tfa98xx && gpio_is_valid(tfa98xx->reset_gpio)) {
gpio_set_value_cansleep(tfa98xx->reset_gpio, 1);
gpio_set_value_cansleep(tfa98xx->reset_gpio, 0);
}
return 0;
}
static int tfa98xx_parse_dt(struct device *dev,
struct tfa98xx *tfa98xx, struct device_node *np)
{
int ret;
tfa98xx->reset_gpio = of_get_named_gpio(np, "nxp,reset-gpio", 0);
if (tfa98xx->reset_gpio < 0)
dev_dbg(dev,
"No reset GPIO provided, will not HW reset device\n");
tfa98xx->irq_gpio = of_get_named_gpio(np, "nxp,irq-gpio", 0);
if (tfa98xx->irq_gpio < 0)
dev_dbg(dev, "No IRQ GPIO provided.\n");
ret = of_property_read_string(np, "nxp,firmware-name",
(char const **)&fw_name);
if (ret < 0)
dev_dbg(dev, "firmware-name is %s (default)\n", fw_name);
else
dev_dbg(dev, "firmware-name is %s\n", fw_name);
return 0;
}
static ssize_t tfa98xx_reg_write(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct tfa98xx *tfa98xx = dev_get_drvdata(dev);
if (count != 1) {
pr_debug("invalid register address");
return -EINVAL;
}
tfa98xx->reg = buf[0];
return 1;
}
static ssize_t tfa98xx_rw_write(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct tfa98xx *tfa98xx = dev_get_drvdata(dev);
u8 *data;
int ret = 0;
int retries = I2C_RETRIES;
data = kmalloc(count+1, GFP_KERNEL);
if (data == NULL) {
ret = -ENOMEM;
pr_debug("can not allocate memory\n");
return ret;
}
data[0] = tfa98xx->reg;
memcpy(&data[1], buf, count);
retry:
ret = i2c_master_send(tfa98xx->i2c, data, count+1);
if (ret < 0) {
pr_warn("i2c error, retries left: %d\n", retries);
if (retries) {
retries--;
msleep(I2C_RETRY_DELAY);
goto retry;
}
}
kfree(data);
return ret;
}
#if defined(TFA_BLACKBOX_LOGGING)
int tfa_log_register(configure_log_t tfa_log_configure,
update_log_t tfa_log_update)
{
handles_local[0].log_set_cb = tfa_log_configure;
handles_local[1].log_set_cb = tfa_log_configure;
handles_local[0].log_get_cb = tfa_log_update;
handles_local[1].log_get_cb = tfa_log_update;
return 0;
}
#endif
static ssize_t tfa98xx_rw_read(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct tfa98xx *tfa98xx = dev_get_drvdata(dev);
struct i2c_msg msgs[] = {
{
.addr = tfa98xx->i2c->addr,
.flags = 0,
.len = 1,
.buf = &tfa98xx->reg,
},
{
.addr = tfa98xx->i2c->addr,
.flags = I2C_M_RD,
.len = count,
.buf = buf,
},
};
int ret;
int retries = I2C_RETRIES;
retry:
ret = i2c_transfer(tfa98xx->i2c->adapter, msgs, ARRAY_SIZE(msgs));
if (ret < 0) {
pr_warn("i2c error, retries left: %d\n", retries);
if (retries) {
retries--;
msleep(I2C_RETRY_DELAY);
goto retry;
}
return ret;
}
/* ret contains the number of i2c messages send */
return 1 + ((ret > 1) ? count : 0);
}
static struct bin_attribute dev_attr_rw = {
.attr = {
.name = "rw",
.mode = 0600,
},
.size = 0,
.read = tfa98xx_rw_read,
.write = tfa98xx_rw_write,
};
static struct bin_attribute dev_attr_reg = {
.attr = {
.name = "reg",
.mode = 0200,
},
.size = 0,
.read = NULL,
.write = tfa98xx_reg_write,
};
static int tfa98xx_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct snd_soc_dai_driver *dai;
struct tfa98xx *tfa98xx;
struct device_node *np = i2c->dev.of_node;
int irq_flags;
unsigned int reg;
int ret;
pr_info("%s: start probing\n", __func__);
pr_info("addr=0x%x\n", i2c->addr);
if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_I2C)) {
dev_err(&i2c->dev, "check_functionality failed\n");
return -EIO;
}
tfa98xx = devm_kzalloc(&i2c->dev, sizeof(struct tfa98xx),
GFP_KERNEL);
if (tfa98xx == NULL)
return -ENOMEM;
tfa98xx->dev = &i2c->dev;
tfa98xx->i2c = i2c;
tfa98xx->dsp_init = TFA98XX_DSP_INIT_STOPPED;
tfa98xx->rate = 48000; /* init to default sample rate (48kHz) */
tfa98xx->handle = -1;
tfa98xx->regmap = devm_regmap_init_i2c(i2c, &tfa98xx_regmap);
if (IS_ERR(tfa98xx->regmap)) {
ret = PTR_ERR(tfa98xx->regmap);
dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
ret);
goto err;
}
i2c_set_clientdata(i2c, tfa98xx);
mutex_init(&tfa98xx->dsp_lock);
init_waitqueue_head(&tfa98xx->wq);
if (np) {
ret = tfa98xx_parse_dt(&i2c->dev, tfa98xx, np);
if (ret) {
dev_err(&i2c->dev, "Failed to parse DT node\n");
goto err;
}
if (no_start)
tfa98xx->irq_gpio = -1;
} else {
tfa98xx->reset_gpio = -1;
tfa98xx->irq_gpio = -1;
}
if (gpio_is_valid(tfa98xx->reset_gpio)) {
ret = devm_gpio_request_one(&i2c->dev, tfa98xx->reset_gpio,
GPIOF_OUT_INIT_LOW, "TFA98XX_RST");
if (ret)
goto err;
}
if (gpio_is_valid(tfa98xx->irq_gpio)) {
ret = devm_gpio_request_one(&i2c->dev, tfa98xx->irq_gpio,
GPIOF_DIR_IN, "TFA98XX_INT");
if (ret)
goto err;
}
/* Power up! */
tfa98xx_ext_reset(tfa98xx);
if (no_start == 0) {
ret = regmap_read(tfa98xx->regmap, 0x03, &reg);
if (ret < 0) {
dev_err(&i2c->dev,
"Failed to read Revision register: %d\n", ret);
return -EIO;
}
tfa98xx_log_revision = reg & 0xff;
tfa98xx_log_subrevision = (reg >> 8) & 0xff;
switch (reg & 0xff) {
case 0x72: /* tfa9872 */
pr_info("TFA9872 detected\n");
tfa98xx->flags |= TFA98XX_FLAG_MULTI_MIC_INPUTS;
tfa98xx->flags |= TFA98XX_FLAG_CALIBRATION_CTL;
tfa98xx->flags |= TFA98XX_FLAG_REMOVE_PLOP_NOISE;
tfa98xx->flags |= TFA98XX_FLAG_LP_MODES;
tfa98xx->flags |= TFA98XX_FLAG_TDM_DEVICE;
tfa98xx->flags |= TFA98XX_FLAG_SAAM_AVAILABLE;
break;
case 0x88: /* tfa9888 */
pr_info("TFA9888 detected\n");
tfa98xx->flags |= TFA98XX_FLAG_STEREO_DEVICE;
tfa98xx->flags |= TFA98XX_FLAG_MULTI_MIC_INPUTS;
tfa98xx->flags |= TFA98XX_FLAG_TDM_DEVICE;
break;
case 0x13: /* tfa9912 */
pr_info("TFA9912 detected\n");
tfa98xx->flags |= TFA98XX_FLAG_MULTI_MIC_INPUTS;
tfa98xx->flags |= TFA98XX_FLAG_TDM_DEVICE;
tfa98xx->flags |= TFA98XX_FLAG_TAPDET_AVAILABLE;
break;
case 0x94: /* tfa9894 */
pr_info("TFA9894 detected\n");
tfa98xx->flags |= TFA98XX_FLAG_MULTI_MIC_INPUTS;
tfa98xx->flags |= TFA98XX_FLAG_TDM_DEVICE;
break;
case 0x80: /* tfa9890 */
case 0x81: /* tfa9890 */
pr_info("TFA9890 detected\n");
tfa98xx->flags |= TFA98XX_FLAG_SKIP_INTERRUPTS;
tfa98xx->flags |= TFA98XX_FLAG_TFA9890_FAM_DEV;
break;
case 0x92: /* tfa9891 */
pr_info("TFA9891 detected\n");
tfa98xx->flags |= TFA98XX_FLAG_SAAM_AVAILABLE;
tfa98xx->flags |= TFA98XX_FLAG_TAPDET_AVAILABLE;
tfa98xx->flags |= TFA98XX_FLAG_SKIP_INTERRUPTS;
tfa98xx->flags |= TFA98XX_FLAG_TFA9890_FAM_DEV;
break;
case 0x12: /* tfa9895 */
pr_info("TFA9895 detected\n");
tfa98xx->flags |= TFA98XX_FLAG_SKIP_INTERRUPTS;
tfa98xx->flags |= TFA98XX_FLAG_TFA9890_FAM_DEV;
break;
case 0x97:
pr_info("TFA9897 detected\n");
tfa98xx->flags |= TFA98XX_FLAG_SKIP_INTERRUPTS;
tfa98xx->flags |= TFA98XX_FLAG_TFA9890_FAM_DEV;
tfa98xx->flags |= TFA98XX_FLAG_TDM_DEVICE;
break;
case 0x96:
pr_info("TFA9896 detected\n");
tfa98xx->flags |= TFA98XX_FLAG_SKIP_INTERRUPTS;
tfa98xx->flags |= TFA98XX_FLAG_TFA9890_FAM_DEV;
tfa98xx->flags |= TFA98XX_FLAG_TDM_DEVICE;
break;
default:
pr_info("Unsupported device revision (0x%x)\n",
reg & 0xff);
return -EINVAL;
}
}
/* Modify the stream names, by appending the i2c device address.
* This is used with multicodec, in order to discriminate devices.
* Stream names appear in the dai definition and in the stream.
* We create copies of original structures because each device will
* have its own instance of this structure, with its own address.
*/
dai = devm_kzalloc(&i2c->dev, sizeof(tfa98xx_dai), GFP_KERNEL);
if (!dai)
return -ENOMEM;
memcpy(dai, tfa98xx_dai, sizeof(tfa98xx_dai));
tfa98xx_append_i2c_address(&i2c->dev,
i2c,
NULL,
0,
dai,
ARRAY_SIZE(tfa98xx_dai));
ret = snd_soc_register_codec(&i2c->dev,
&soc_codec_dev_tfa98xx, dai,
ARRAY_SIZE(tfa98xx_dai));
if (ret < 0) {
dev_err(&i2c->dev, "Failed to register TFA98xx: %d\n", ret);
goto err_off;
}
if (gpio_is_valid(tfa98xx->irq_gpio) &&
!(tfa98xx->flags & TFA98XX_FLAG_SKIP_INTERRUPTS)) {
/* register irq handler */
irq_flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT;
ret = devm_request_threaded_irq(&i2c->dev,
gpio_to_irq(tfa98xx->irq_gpio),
NULL, tfa98xx_irq, irq_flags,
"tfa98xx", tfa98xx);
if (ret != 0) {
dev_err(&i2c->dev, "Failed to request IRQ %d: %d\n",
gpio_to_irq(tfa98xx->irq_gpio), ret);
goto err_off;
}
} else {
dev_info(&i2c->dev, "Skipping IRQ registration\n");
/* disable feature support if gpio was invalid */
tfa98xx->flags |= TFA98XX_FLAG_SKIP_INTERRUPTS;
}
#ifdef CONFIG_DEBUG_FS
tfa98xx_debug_init(tfa98xx, i2c);
#endif
/* Register the sysfs files for climax backdoor access */
ret = device_create_bin_file(&i2c->dev, &dev_attr_rw);
if (ret)
dev_info(&i2c->dev, "error creating sysfs files\n");
ret = device_create_bin_file(&i2c->dev, &dev_attr_reg);
if (ret)
dev_info(&i2c->dev, "error creating sysfs files\n");
tfa98xx_log_i2c_devicenum = i2c->adapter->nr;
tfa98xx_log_i2c_slaveaddress = i2c->addr;
pr_info("%s: Probe completed successfully!\n", __func__);
return 0;
err_off:
tfa98xx_unregister_dsp(tfa98xx);
err:
return ret;
}
static int tfa98xx_i2c_remove(struct i2c_client *i2c)
{
struct tfa98xx *tfa98xx = i2c_get_clientdata(i2c);
pr_debug("addr=0x%x\n", i2c->addr);
tfa98xx_interrupt_enable(tfa98xx, false);
cancel_delayed_work_sync(&tfa98xx->interrupt_work);
cancel_delayed_work_sync(&tfa98xx->monitor_work);
cancel_delayed_work_sync(&tfa98xx->init_work);
#if defined(USE_TFA9891)
cancel_delayed_work_sync(&tfa98xx->tapdet_work);
#endif
device_remove_bin_file(&i2c->dev, &dev_attr_reg);
device_remove_bin_file(&i2c->dev, &dev_attr_rw);
#ifdef CONFIG_DEBUG_FS
tfa98xx_debug_remove(tfa98xx);
#endif
tfa98xx_unregister_dsp(tfa98xx);
snd_soc_unregister_codec(&i2c->dev);
if (gpio_is_valid(tfa98xx->irq_gpio))
devm_gpio_free(&i2c->dev, tfa98xx->irq_gpio);
if (gpio_is_valid(tfa98xx->reset_gpio))
devm_gpio_free(&i2c->dev, tfa98xx->reset_gpio);
return 0;
}
static const struct i2c_device_id tfa98xx_i2c_id[] = {
{ "tfa98xx", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, tfa98xx_i2c_id);
#ifdef CONFIG_OF
static const struct of_device_id tfa98xx_dt_match[] = {
{ .compatible = "nxp,tfa98xx" },
{ .compatible = "nxp,tfa9872" },
{ .compatible = "nxp,tfa9888" },
{ .compatible = "nxp,tfa9890" },
{ .compatible = "nxp,tfa9891" },
{ .compatible = "nxp,tfa9894" },
{ .compatible = "nxp,tfa9895" },
{ .compatible = "nxp,tfa9896" },
{ .compatible = "nxp,tfa9897" },
{ .compatible = "nxp,tfa9912" },
{ },
};
#endif
static struct i2c_driver tfa98xx_i2c_driver = {
.driver = {
.name = "tfa98xx",
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(tfa98xx_dt_match),
},
.probe = tfa98xx_i2c_probe,
.remove = tfa98xx_i2c_remove,
.id_table = tfa98xx_i2c_id,
};
static int trace_level;
module_param(trace_level, int, 0444);
MODULE_PARM_DESC(trace_level, "TFA98xx debug trace level (0=off, bits:1=verbose,2=regdmesg,3=regftrace).");
static int __init tfa98xx_i2c_init(void)
{
int ret = 0;
pr_info("TFA98XX driver version %s\n", TFA98XX_VERSION);
/* Enable debug traces */
tfa_verbose(trace_level);
tfa98xx_kmsg_regs = trace_level & 2;
tfa98xx_ftrace_regs = trace_level & 4;
ret = i2c_add_driver(&tfa98xx_i2c_driver);
return ret;
}
module_init(tfa98xx_i2c_init);
static void __exit tfa98xx_i2c_exit(void)
{
i2c_del_driver(&tfa98xx_i2c_driver);
kfree(container);
}
module_exit(tfa98xx_i2c_exit);
MODULE_DESCRIPTION("ASoC TFA98XX driver");
MODULE_LICENSE("GPL");