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: Ralf Herz <rherz@codeaurora.org>
此提交包含在:
Ralf Herz
2019-07-26 11:17:02 +02:00
父節點 cf16dedb1f
當前提交 05441f6789
共有 2 個檔案被更改,包括 41 行新增9 行删除

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@@ -564,15 +564,23 @@ static void ep92_read_audio_info(struct snd_soc_component *component,
send_uevent = true;
}
old = ep92->ai.cs[0];
ep92->ai.cs[0] = snd_soc_component_read32(component,
EP92_AUDIO_INFO_CHANNEL_STATUS_0);
if (ep92->ai.cs[0] == 0xff) {
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) {
old = ep92->ai.cs[0];
ep92->ai.cs[0] = snd_soc_component_read32(component,
EP92_AUDIO_INFO_CHANNEL_STATUS_0);
if (ep92->ai.cs[0] == 0xff) {
dev_dbg(component->dev, "ep92 EP92_AUDIO_INFO_CHANNEL_STATUS_0 read 0xff\n");
ep92->ai.cs[0] = old;
}
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,