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Diffstat (limited to 'sound/pci/hda/hda_eld.c')
-rw-r--r--sound/pci/hda/hda_eld.c52
1 files changed, 27 insertions, 25 deletions
diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c
index 4c054f4486b..7dd846380a5 100644
--- a/sound/pci/hda/hda_eld.c
+++ b/sound/pci/hda/hda_eld.c
@@ -246,8 +246,8 @@ static void hdmi_update_short_audio_desc(struct cea_sad *a,
/*
* Be careful, ELD buf could be totally rubbish!
*/
-static int hdmi_update_eld(struct hdmi_eld *e,
- const unsigned char *buf, int size)
+int snd_hdmi_parse_eld(struct parsed_hdmi_eld *e,
+ const unsigned char *buf, int size)
{
int mnl;
int i;
@@ -260,7 +260,6 @@ static int hdmi_update_eld(struct hdmi_eld *e,
goto out_fail;
}
- e->eld_size = size;
e->baseline_len = GRAB_BITS(buf, 2, 0, 8);
mnl = GRAB_BITS(buf, 4, 0, 5);
e->cea_edid_ver = GRAB_BITS(buf, 4, 5, 3);
@@ -305,7 +304,6 @@ static int hdmi_update_eld(struct hdmi_eld *e,
if (!e->spk_alloc)
e->spk_alloc = 0xffff;
- e->eld_valid = true;
return 0;
out_fail:
@@ -318,17 +316,16 @@ int snd_hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid)
AC_DIPSIZE_ELD_BUF);
}
-int snd_hdmi_get_eld(struct hdmi_eld *eld,
- struct hda_codec *codec, hda_nid_t nid)
+int snd_hdmi_get_eld(struct hda_codec *codec, hda_nid_t nid,
+ unsigned char *buf, int *eld_size)
{
int i;
int ret;
int size;
- unsigned char *buf;
/*
* ELD size is initialized to zero in caller function. If no errors and
- * ELD is valid, actual eld_size is assigned in hdmi_update_eld()
+ * ELD is valid, actual eld_size is assigned.
*/
size = snd_hdmi_get_eld_size(codec, nid);
@@ -343,8 +340,6 @@ int snd_hdmi_get_eld(struct hdmi_eld *eld,
}
/* set ELD buffer */
- buf = eld->eld_buffer;
-
for (i = 0; i < size; i++) {
unsigned int val = hdmi_get_eld_data(codec, nid, i);
/*
@@ -372,8 +367,7 @@ int snd_hdmi_get_eld(struct hdmi_eld *eld,
buf[i] = val;
}
- ret = hdmi_update_eld(eld, buf, size);
-
+ *eld_size = size;
error:
return ret;
}
@@ -438,7 +432,7 @@ void snd_print_channel_allocation(int spk_alloc, char *buf, int buflen)
buf[j] = '\0'; /* necessary when j == 0 */
}
-void snd_hdmi_show_eld(struct hdmi_eld *e)
+void snd_hdmi_show_eld(struct parsed_hdmi_eld *e)
{
int i;
@@ -487,10 +481,11 @@ static void hdmi_print_sad_info(int i, struct cea_sad *a,
static void hdmi_print_eld_info(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
- struct hdmi_eld *e = entry->private_data;
+ struct hdmi_eld *eld = entry->private_data;
+ struct parsed_hdmi_eld *e = &eld->info;
char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
int i;
- static char *eld_versoin_names[32] = {
+ static char *eld_version_names[32] = {
"reserved",
"reserved",
"CEA-861D or below",
@@ -505,15 +500,18 @@ static void hdmi_print_eld_info(struct snd_info_entry *entry,
[4 ... 7] = "reserved"
};
- snd_iprintf(buffer, "monitor_present\t\t%d\n", e->monitor_present);
- snd_iprintf(buffer, "eld_valid\t\t%d\n", e->eld_valid);
- if (!e->eld_valid)
+ mutex_lock(&eld->lock);
+ snd_iprintf(buffer, "monitor_present\t\t%d\n", eld->monitor_present);
+ snd_iprintf(buffer, "eld_valid\t\t%d\n", eld->eld_valid);
+ if (!eld->eld_valid) {
+ mutex_unlock(&eld->lock);
return;
+ }
snd_iprintf(buffer, "monitor_name\t\t%s\n", e->monitor_name);
snd_iprintf(buffer, "connection_type\t\t%s\n",
eld_connection_type_names[e->conn_type]);
snd_iprintf(buffer, "eld_version\t\t[0x%x] %s\n", e->eld_ver,
- eld_versoin_names[e->eld_ver]);
+ eld_version_names[e->eld_ver]);
snd_iprintf(buffer, "edid_version\t\t[0x%x] %s\n", e->cea_edid_ver,
cea_edid_version_names[e->cea_edid_ver]);
snd_iprintf(buffer, "manufacture_id\t\t0x%x\n", e->manufacture_id);
@@ -530,18 +528,21 @@ static void hdmi_print_eld_info(struct snd_info_entry *entry,
for (i = 0; i < e->sad_count; i++)
hdmi_print_sad_info(i, e->sad + i, buffer);
+ mutex_unlock(&eld->lock);
}
static void hdmi_write_eld_info(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
- struct hdmi_eld *e = entry->private_data;
+ struct hdmi_eld *eld = entry->private_data;
+ struct parsed_hdmi_eld *e = &eld->info;
char line[64];
char name[64];
char *sname;
long long val;
unsigned int n;
+ mutex_lock(&eld->lock);
while (!snd_info_get_line(buffer, line, sizeof(line))) {
if (sscanf(line, "%s %llx", name, &val) != 2)
continue;
@@ -551,9 +552,9 @@ static void hdmi_write_eld_info(struct snd_info_entry *entry,
* eld_version edid_version
*/
if (!strcmp(name, "monitor_present"))
- e->monitor_present = val;
+ eld->monitor_present = val;
else if (!strcmp(name, "eld_valid"))
- e->eld_valid = val;
+ eld->eld_valid = val;
else if (!strcmp(name, "connection_type"))
e->conn_type = val;
else if (!strcmp(name, "port_id"))
@@ -593,6 +594,7 @@ static void hdmi_write_eld_info(struct snd_info_entry *entry,
e->sad_count = n + 1;
}
}
+ mutex_unlock(&eld->lock);
}
@@ -627,7 +629,7 @@ void snd_hda_eld_proc_free(struct hda_codec *codec, struct hdmi_eld *eld)
#endif /* CONFIG_PROC_FS */
/* update PCM info based on ELD */
-void snd_hdmi_eld_update_pcm_info(struct hdmi_eld *eld,
+void snd_hdmi_eld_update_pcm_info(struct parsed_hdmi_eld *e,
struct hda_pcm_stream *hinfo)
{
u32 rates;
@@ -644,8 +646,8 @@ void snd_hdmi_eld_update_pcm_info(struct hdmi_eld *eld,
formats = SNDRV_PCM_FMTBIT_S16_LE;
maxbps = 16;
channels_max = 2;
- for (i = 0; i < eld->sad_count; i++) {
- struct cea_sad *a = &eld->sad[i];
+ for (i = 0; i < e->sad_count; i++) {
+ struct cea_sad *a = &e->sad[i];
rates |= a->rates;
if (a->channels > channels_max)
channels_max = a->channels;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-28 02:25:53 +0000