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ALSA: hda - Introduce snd_hda_set_pin_ctl*() helper functions

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For setting the pin-control values more safely to match with the
actual pin capability bits, a copule of new helper functions,
snd_hda_set_pin_ctl() and snd_hda_set_pin_ctl_cache(), are
introduced.  These are simple replacement of the codec verb write with
AC_VERB_SET_PIN_WIDGET but do more sanity checks and filter out
superfluous pin-control bits if they don't fit with the corresponding
pin capabilities.

Some codecs are screwed up or ignore the command when such a wrong bit
is set.  These helpers will avoid such secret errors.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
2012-04-20 12:34:50 +02:00
parent d398011057
commit cdd03cedc5
10 changed files with 125 additions and 117 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
sound/pci/hda/patch_sigmatel.c
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@@ -681,8 +681,7 @@ static int stac_vrefout_set(struct hda_codec *codec,
pinctl &= ~AC_PINCTL_VREFEN;
pinctl |= (new_vref & AC_PINCTL_VREFEN);
error = snd_hda_codec_write_cache(codec, nid, 0,
AC_VERB_SET_PIN_WIDGET_CONTROL, pinctl);
error = snd_hda_set_pin_ctl_cache(codec, nid, pinctl);
if (error < 0)
return error;
@@ -706,8 +705,7 @@ static unsigned int stac92xx_vref_set(struct hda_codec *codec,
else
pincfg |= AC_PINCTL_IN_EN;
error = snd_hda_codec_write_cache(codec, nid, 0,
AC_VERB_SET_PIN_WIDGET_CONTROL, pincfg);
error = snd_hda_set_pin_ctl_cache(codec, nid, pincfg);
if (error < 0)
return error;
else
@@ -2524,8 +2522,7 @@ static unsigned int stac92xx_get_default_vref(struct hda_codec *codec,
static void stac92xx_auto_set_pinctl(struct hda_codec *codec, hda_nid_t nid, int pin_type)
{
snd_hda_codec_write_cache(codec, nid, 0,
AC_VERB_SET_PIN_WIDGET_CONTROL, pin_type);
snd_hda_set_pin_ctl_cache(codec, nid, pin_type);
}
#define stac92xx_hp_switch_info snd_ctl_boolean_mono_info
@@ -4460,8 +4457,7 @@ static void stac92xx_shutup_pins(struct hda_codec *codec)
struct hda_pincfg *pin = snd_array_elem(&codec->init_pins, i);
def_conf = snd_hda_codec_get_pincfg(codec, pin->nid);
if (get_defcfg_connect(def_conf) != AC_JACK_PORT_NONE)
snd_hda_codec_write(codec, pin->nid, 0,
AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
snd_hda_set_pin_ctl(codec, pin->nid, 0);
}
}
@@ -4517,9 +4513,7 @@ static void stac92xx_set_pinctl(struct hda_codec *codec, hda_nid_t nid,
pin_ctl |= flag;
if (old_ctl != pin_ctl)
snd_hda_codec_write_cache(codec, nid, 0,
AC_VERB_SET_PIN_WIDGET_CONTROL,
pin_ctl);
snd_hda_set_pin_ctl_cache(codec, nid, pin_ctl);
}
static void stac92xx_reset_pinctl(struct hda_codec *codec, hda_nid_t nid,
@@ -4528,9 +4522,7 @@ static void stac92xx_reset_pinctl(struct hda_codec *codec, hda_nid_t nid,
unsigned int pin_ctl = snd_hda_codec_read(codec, nid,
0, AC_VERB_GET_PIN_WIDGET_CONTROL, 0x00);
if (pin_ctl & flag)
snd_hda_codec_write_cache(codec, nid, 0,
AC_VERB_SET_PIN_WIDGET_CONTROL,
pin_ctl & ~flag);
snd_hda_set_pin_ctl_cache(codec, nid, pin_ctl & ~flag);
}
static inline int get_pin_presence(struct hda_codec *codec, hda_nid_t nid)