At Wed, 15 Feb 2012 18:06:39 +0800, joey.jiaojg wrote:
OK, the situation is 0x01 is to control GPIO0:
- if I write (codec,0x01,0,AC_VERB_SET_GPIO_MASK,1) only; the result is
speaker not work.
- if I write (codec,0x01,0,AC_VERB_SET_GPIO_DIRECTION,1) only; the
result is speaker not work.
Sure, GPIO must be always set mask, direction and data all together. The question is, when you set GPIO mask/dir/data, the speaker starts playing, and if set to zero (e.g. only data), the speaker is muted?
- If I write step 1 & 2 together, speaker works when I reboot.
Then GPIO is likely an external amp control.
- Then If I plugged in the headphone, the headphone doesn't work. It
only works when I write (codec,0x0F,0,AC_VERB_SET_PIN_WIDGET_CONTROL,PIN_HP).
This is normal.
- From step 3 & 4, it's similar for cases that I reboot with headphone
plugged in. That is, if I remove headphone, speaker doesn't work automatically. If I write (codec,0x0F,0,AC_VERB_SET_PIN_WIDGET_CONTROL,PIN_OUT), the auto-detection function works well can switch speaker/headphone automatically.
That's odd. If you don't change from PIN_HP, doesn't the unsolicited event work?
Another question is, when you set PIN_WIDGET_CONTROL on the speaker pin (not sure which one is) to 0x00, does it mute the speaker, too?
Takashi
I don't know why it's this case, and from alsa document, it seems only enable GPIO0 will work but actually not.
On 2012年02月15日 17:58, Takashi Iwai wrote:
At Wed, 15 Feb 2012 17:45:37 +0800, joey.jiaojg wrote:
I have tried to enable each one of them separately, and the speaker doesn't work.
Sorry, it's not clear what you meant. Each of what separately? And what does GPIO do exactly?
I have to use these 3 write_cache to make switch and auto-detect work smoothly.
We need to know the reason why these must be needed.
Takashi
On 2012年02月15日 17:40, Takashi Iwai wrote:
At Wed, 15 Feb 2012 17:31:44 +0800, joey.jiaojg wrote:
Here is the diff file.
Thanks.
+/* toggle speaker-output according to the hp-jack state */ +static void alc260_b1900_automute(struct hda_codec *codec) +{
unsigned int present;- present = snd_hda_jack_detect(codec, 0x0f);
- if (present) {
snd_hda_codec_write_cache(codec, 0x01, 0,AC_VERB_SET_GPIO_MASK, 0);snd_hda_codec_write_cache(codec, 0x01, 0,AC_VERB_SET_GPIO_DIRECTION,0);What actually this GPIO bit does on your device? To mute/unmute the speaker?
If so, doesn't the speaker toggle work with just changing the pin-control of the corresponding pin?
Takashi