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path: root/sound/pci/hda/hda_eld.c
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Diffstat (limited to 'sound/pci/hda/hda_eld.c')
-rw-r--r--sound/pci/hda/hda_eld.c39
1 files changed, 32 insertions, 7 deletions
diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c
index c34f730f481..1c8ddf547a2 100644
--- a/sound/pci/hda/hda_eld.c
+++ b/sound/pci/hda/hda_eld.c
@@ -318,6 +318,11 @@ int snd_hdmi_get_eld(struct hdmi_eld *eld,
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()
+ */
+
if (!eld->eld_valid)
return -ENOENT;
@@ -327,14 +332,13 @@ int snd_hdmi_get_eld(struct hdmi_eld *eld,
snd_printd(KERN_INFO "HDMI: ELD buf size is 0, force 128\n");
size = 128;
}
- if (size < ELD_FIXED_BYTES || size > PAGE_SIZE) {
+ if (size < ELD_FIXED_BYTES || size > ELD_MAX_SIZE) {
snd_printd(KERN_INFO "HDMI: invalid ELD buf size %d\n", size);
return -ERANGE;
}
- buf = kmalloc(size, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
+ /* set ELD buffer */
+ buf = eld->eld_buffer;
for (i = 0; i < size; i++) {
unsigned int val = hdmi_get_eld_data(codec, nid, i);
@@ -356,10 +360,31 @@ int snd_hdmi_get_eld(struct hdmi_eld *eld,
ret = hdmi_update_eld(eld, buf, size);
error:
- kfree(buf);
return ret;
}
+/**
+ * SNDRV_PCM_RATE_* and AC_PAR_PCM values don't match, print correct rates with
+ * hdmi-specific routine.
+ */
+static void hdmi_print_pcm_rates(int pcm, char *buf, int buflen)
+{
+ static unsigned int alsa_rates[] = {
+ 5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200,
+ 96000, 176400, 192000, 384000
+ };
+ int i, j;
+
+ for (i = 0, j = 0; i < ARRAY_SIZE(alsa_rates); i++)
+ if (pcm & (1 << i))
+ j += snprintf(buf + j, buflen - j, " %d",
+ alsa_rates[i]);
+
+ buf[j] = '\0'; /* necessary when j == 0 */
+}
+
+#define SND_PRINT_RATES_ADVISED_BUFSIZE 80
+
static void hdmi_show_short_audio_desc(struct cea_sad *a)
{
char buf[SND_PRINT_RATES_ADVISED_BUFSIZE];
@@ -368,7 +393,7 @@ static void hdmi_show_short_audio_desc(struct cea_sad *a)
if (!a->format)
return;
- snd_print_pcm_rates(a->rates, buf, sizeof(buf));
+ hdmi_print_pcm_rates(a->rates, buf, sizeof(buf));
if (a->format == AUDIO_CODING_TYPE_LPCM)
snd_print_pcm_bits(a->sample_bits, buf2 + 8, sizeof(buf2) - 8);
@@ -427,7 +452,7 @@ static void hdmi_print_sad_info(int i, struct cea_sad *a,
i, a->format, cea_audio_coding_type_names[a->format]);
snd_iprintf(buffer, "sad%d_channels\t\t%d\n", i, a->channels);
- snd_print_pcm_rates(a->rates, buf, sizeof(buf));
+ hdmi_print_pcm_rates(a->rates, buf, sizeof(buf));
snd_iprintf(buffer, "sad%d_rates\t\t[0x%x]%s\n", i, a->rates, buf);
if (a->format == AUDIO_CODING_TYPE_LPCM) {