[alsa-devel] [PATCH] stac9200 eapd fixes
Brian Hinz
bphinz at hotmail.com
Thu Sep 27 03:39:47 CEST 2007
Hi,
The following patch addresses alsa bug #0002948 and it's (many) duplicates.
Please consider it for inclusion in the next release.
Thanks,
-brian
--- alsa-kernel/pci/hda/hda_codec.c 2007-09-24 21:46:11.000000000 -0400
+++ alsa-kernel/pci/hda/hda_codec.c 2007-09-24 22:00:15.000000000 -0400
@@ -1629,11 +1629,30 @@
power_state);
nid = codec->start_nid;
+ unsigned int pincap;
for (i = 0; i < codec->num_nodes; i++, nid++) {
- if (get_wcaps(codec, nid) & AC_WCAP_POWER)
- snd_hda_codec_write(codec, nid, 0,
+ if (get_wcaps(codec, nid) & AC_WCAP_POWER) {
+ pincap = snd_hda_param_read(codec, nid,
+ AC_PAR_PIN_CAP);
+ /*
+ * don't power down the widget if it controls eapd
+ * and EAPD_BTLENABLE is set.
+ */
+ if (pincap & AC_PINCAP_EAPD) {
+ int eapd = snd_hda_codec_read(codec, nid,
+ 0, AC_VERB_GET_EAPD_BTLENABLE, 0);
+ eapd &= 0x02;
+ if (power_state != AC_PWRST_D3 || !eapd) {
+ snd_hda_codec_write(codec, nid, 0,
+ AC_VERB_SET_POWER_STATE,
+ power_state);
+ }
+ } else {
+ snd_hda_codec_write(codec, nid, 0,
AC_VERB_SET_POWER_STATE,
power_state);
+ }
+ }
}
if (power_state == AC_PWRST_D0) {
--- alsa-kernel/pci/hda/patch_sigmatel.c 2007-09-24 21:46:12.000000000 -0400
+++ alsa-kernel/pci/hda/patch_sigmatel.c 2007-09-26 20:57:55.000000000 -0400
@@ -378,6 +378,13 @@
{}
};
+static struct hda_verb stac9200_eapd_init[] = {
+ /* set dac0mux for dac converter */
+ { 0x07, AC_VERB_SET_CONNECT_SEL, 0x00},
+ { 0x08, AC_VERB_SET_EAPD_BTLENABLE, 0x02},
+ {}
+};
+
static struct hda_verb stac925x_core_init[] = {
/* set dac0mux for dac converter */
{ 0x06, AC_VERB_SET_CONNECT_SEL, 0x00},
@@ -2492,7 +2499,23 @@
spec->num_dmics = 0;
spec->num_adcs = 1;
- spec->init = stac9200_core_init;
+ /*
+ * EAPD needs to be set on resume
+ */
+ switch (codec->subsystem_id) {
+ case 0x107b0205: /* Gateway S-7110M */
+ spec->init = stac9200_eapd_init;
+ break;
+ case 0x107b0317: /* Gateway MT3423, MX3412, MX3410, MX3414 */
+ spec->init = stac9200_eapd_init;
+ break;
+ case 0x107b0318: /* Gateway ML3109, MT3707 */
+ spec->init = stac9200_eapd_init;
+ break;
+ default:
+ spec->init = stac9200_core_init;
+ break;
+ }
spec->mixer = stac9200_mixer;
err = stac9200_parse_auto_config(codec);
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