Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 05441f67 authored by Ralf Herz's avatar Ralf Herz
Browse files

asoc: codecs: Add ep92 pre-emphasis status 



Provide pre-emphasis status in sysfs node that was received in
channel status bits.

Change-Id: Ice6f69806c993e2235b5ecb89dfc4028c03e02b8
Signed-off-by: default avatarRalf Herz <rherz@codeaurora.org>
parent cf16dedb

asoc/codecs/ep92/ep92.c

+38 −8
Original line number Diff line number Diff line
@@ -564,8 +564,6 @@ static void ep92_read_audio_info(struct snd_soc_component *component, 
		send_uevent = true;

	}



	new_mode = ep92->old_mode;

	if (ep92->ai.audio_status & EP92_AI_STD_ADO_MASK) {

	old = ep92->ai.cs[0];

	ep92->ai.cs[0] = snd_soc_component_read32(component,

		EP92_AUDIO_INFO_CHANNEL_STATUS_0);
@@ -573,6 +571,16 @@ static void ep92_read_audio_info(struct snd_soc_component *component, 
		dev_dbg(component->dev, "ep92 EP92_AUDIO_INFO_CHANNEL_STATUS_0 read 0xff\n");

		ep92->ai.cs[0] = old;

	}

	change = ep92->ai.cs[0] ^ old;

	if (change & EP92_AI_PREEMPH_MASK) {

		dev_dbg(component->dev, "ep92 preemph changed to %d\n",

			(ep92->ai.cs[0] & EP92_AI_PREEMPH_MASK) >>

			EP92_AI_PREEMPH_SHIFT);

		send_uevent = true;

	}



	new_mode = ep92->old_mode;

	if (ep92->ai.audio_status & EP92_AI_STD_ADO_MASK) {

		if (ep92->ai.cs[0] & EP92_AI_NPCM_MASK)

			new_mode = 1; /* Compr */

		else
@@ -973,7 +981,7 @@ static ssize_t ep92_sysfs_rda_audio_ch_alloc(struct device *dev, 
	return ret;

}



static ssize_t ep92_sysfs_rda_avmute(struct device *dev,

static ssize_t ep92_sysfs_rda_audio_preemph(struct device *dev,

	struct device_attribute *attr, char *buf)

{

	ssize_t ret;
@@ -985,6 +993,26 @@ static ssize_t ep92_sysfs_rda_avmute(struct device *dev, 
		return -ENODEV;

	}



	val = (ep92->ai.cs[0] & EP92_AI_PREEMPH_MASK) >>

		EP92_AI_PREEMPH_SHIFT;



	ret = snprintf(buf, EP92_SYSFS_ENTRY_MAX_LEN, "%d\n", val);

	dev_dbg(dev, "%s: '%d'\n", __func__, val);



	return ret;

}



static ssize_t ep92_sysfs_rda_avmute(struct device *dev,

	struct device_attribute *attr, char *buf)

{

	ssize_t ret;

	int val;

	struct ep92_pdata *ep92 = dev_get_drvdata(dev);



	if (!ep92 || !ep92->component) {

		dev_err(dev, "%s: device error\n", __func__);

		return -ENODEV;

	}



	val = (ep92->ai.system_status_0 >> EP92_AI_AVMUTE_SHIFT) &

		EP92_2CHOICE_MASK;
@@ -1570,6 +1598,7 @@ static DEVICE_ATTR(audio_rate, 0444, ep92_sysfs_rda_audio_rate, NULL); 
static DEVICE_ATTR(audio_layout, 0444, ep92_sysfs_rda_audio_layout, NULL);

static DEVICE_ATTR(audio_ch_count, 0444, ep92_sysfs_rda_audio_ch_count, NULL);

static DEVICE_ATTR(audio_ch_alloc, 0444, ep92_sysfs_rda_audio_ch_alloc, NULL);

static DEVICE_ATTR(audio_preemph, 0444, ep92_sysfs_rda_audio_preemph, NULL);

static DEVICE_ATTR(audio_avmute, 0444, ep92_sysfs_rda_avmute, NULL);

static DEVICE_ATTR(link_on0, 0444, ep92_sysfs_rda_link_on0, NULL);

static DEVICE_ATTR(link_on1, 0444, ep92_sysfs_rda_link_on1, NULL);
@@ -1602,6 +1631,7 @@ static struct attribute *ep92_fs_attrs[] = { 
	&dev_attr_audio_layout.attr,

	&dev_attr_audio_ch_count.attr,

	&dev_attr_audio_ch_alloc.attr,

	&dev_attr_audio_preemph.attr,

	&dev_attr_audio_avmute.attr,

	&dev_attr_link_on0.attr,

	&dev_attr_link_on1.attr,

asoc/codecs/ep92/ep92.h

+3 −1
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only */

/*

 * Copyright (c) 2018, The Linux Foundation. All rights reserved.

 * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.

 */



#ifndef __EP92_H__
@@ -171,6 +171,8 @@ static struct reg_default ep92_reg_defaults[] = { 
#define EP92_AI_STD_ADO_MASK     0x08

#define EP92_AI_RATE_MASK        0x07

#define EP92_AI_NPCM_MASK        0x02

#define EP92_AI_PREEMPH_SHIFT    3

#define EP92_AI_PREEMPH_MASK     0x38

#define EP92_AI_CH_COUNT_MASK    0x07

#define EP92_AI_CH_ALLOC_MASK    0xff