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ALSA: hda - ELD proc interface write updates

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- rename ELD proc write routine to hdmi_write_eld_info()
- support modifying WMAPro's profile

Write to some ELD fields (monitor_name, manufacture_id, product_id,
eld_version, edid_version) are deliberately not supported, since that
won't correct wrong behaviors and only leads to confusions.

Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Wu Fengguang 2008-11-22 09:40:54 +08:00 committed by Takashi Iwai
parent 03284c8f23
commit acb0599388
1 changed files with 9 additions and 2 deletions
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11
sound/pci/hda/hda_eld.c
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@ -502,7 +502,7 @@ static void hdmi_print_eld_info(struct snd_info_entry *entry,
hdmi_print_sad_info(i, e->sad + i, buffer);
}
static void hdmi_write_eld_item(struct snd_info_entry *entry,
static void hdmi_write_eld_info(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct hdmi_eld *e = entry->private_data;
@ -515,6 +515,11 @@ static void hdmi_write_eld_item(struct snd_info_entry *entry,
while (!snd_info_get_line(buffer, line, sizeof(line))) {
if (sscanf(line, "%s %llx", name, &val) != 2)
continue;
/*
* We don't allow modification to these fields:
* monitor_name manufacture_id product_id
* eld_version edid_version
*/
if (!strcmp(name, "connection_type"))
e->conn_type = val;
else if (!strcmp(name, "port_id"))
@ -548,6 +553,8 @@ static void hdmi_write_eld_item(struct snd_info_entry *entry,
e->sad[n].sample_bits = val;
else if (!strcmp(sname, "_max_bitrate"))
e->sad[n].max_bitrate = val;
else if (!strcmp(sname, "_profile"))
e->sad[n].profile = val;
if (n >= e->sad_count)
e->sad_count = n + 1;
}
@ -567,7 +574,7 @@ int snd_hda_eld_proc_new(struct hda_codec *codec, struct hdmi_eld *eld)
return err;
snd_info_set_text_ops(entry, eld, hdmi_print_eld_info);
entry->c.text.write = hdmi_write_eld_item;
entry->c.text.write = hdmi_write_eld_info;
entry->mode |= S_IWUSR;
eld->proc_entry = entry;