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[ALSA] hda: 92HD7XXX power management support
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Added support for advanced power management support for output ports on
92HD7xxx family of codecs. Inactive output ports are powered down when
the pin sense  doesn't detect a connection, and powered back up when a
connection is sensed.

Signed-off-by: Matthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
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Matthew Ranostay authored and Jaroslav Kysela committed Jan 31, 2008
1 parent 2134ea4 commit a64135a
Showing 1 changed file with 83 additions and 8 deletions.
91 changes: 83 additions & 8 deletions sound/pci/hda/patch_sigmatel.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -34,7 +34,8 @@
#include "hda_local.h"

#define NUM_CONTROL_ALLOC 32
#define STAC_HP_EVENT 0x37
#define STAC_PWR_EVENT 0x20
#define STAC_HP_EVENT 0x30

enum {
STAC_REF,
Expand Down Expand Up @@ -126,6 +127,10 @@ struct sigmatel_spec {
unsigned char aloopback_mask;
unsigned char aloopback_shift;

/* power management */
unsigned int num_pwrs;
hda_nid_t *pwr_nids;

/* playback */
struct hda_multi_out multiout;
hda_nid_t dac_nids[5];
Expand Down Expand Up @@ -187,6 +192,11 @@ static hda_nid_t stac9200_dac_nids[1] = {
0x02,
};

static hda_nid_t stac92hd73xx_pwr_nids[8] = {
0x0a, 0x0b, 0x0c, 0xd, 0x0e,
0x0f, 0x10, 0x11
};

static hda_nid_t stac92hd73xx_adc_nids[2] = {
0x1a, 0x1b
};
Expand All @@ -209,6 +219,10 @@ static hda_nid_t stac92hd73xx_dmux_nids[2] = {
0x20, 0x21,
};

static hda_nid_t stac92hd71bxx_pwr_nids[3] = {
0x0a, 0x0d, 0x0f
};

static hda_nid_t stac92hd71bxx_adc_nids[2] = {
0x12, 0x13,
};
Expand Down Expand Up @@ -546,7 +560,7 @@ static struct hda_verb stac92hd71bxx_analog_core_init[] = {
/* connect ports 0d and 0f to audio mixer */
{ 0x0d, AC_VERB_SET_CONNECT_SEL, 0x2},
{ 0x0f, AC_VERB_SET_CONNECT_SEL, 0x2},
{ 0x0f, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT},
{ 0x0f, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT}, /* Speaker */
/* unmute dac0 input in audio mixer */
{ 0x17, AC_VERB_SET_AMP_GAIN_MUTE, 0x701f},
/* unmute right and left channels for nodes 0x0a, 0xd, 0x0f */
Expand Down Expand Up @@ -2704,6 +2718,16 @@ static void enable_pin_detect(struct hda_codec *codec, hda_nid_t nid,
(AC_USRSP_EN | event));
}

static int is_nid_hp_pin(struct auto_pin_cfg *cfg, hda_nid_t nid)
{
int i;
for (i = 0; i < cfg->hp_outs; i++)
if (cfg->hp_pins[i] == nid)
return 1; /* nid is a HP-Out */

return 0; /* nid is not a HP-Out */
};

static int stac92xx_init(struct hda_codec *codec)
{
struct sigmatel_spec *spec = codec->spec;
Expand Down Expand Up @@ -2739,10 +2763,23 @@ static int stac92xx_init(struct hda_codec *codec)
stac92xx_auto_set_pinctl(codec, nid, pinctl);
}
}
if (spec->num_dmics > 0)
for (i = 0; i < spec->num_dmics; i++)
stac92xx_auto_set_pinctl(codec, spec->dmic_nids[i],
AC_PINCTL_IN_EN);
for (i = 0; i < spec->num_dmics; i++)
stac92xx_auto_set_pinctl(codec, spec->dmic_nids[i],
AC_PINCTL_IN_EN);
for (i = 0; i < spec->num_pwrs; i++) {
int event = is_nid_hp_pin(cfg, spec->pwr_nids[i])
? STAC_HP_EVENT : STAC_PWR_EVENT;
int pinctl = snd_hda_codec_read(codec, spec->pwr_nids[i],
0, AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
/* outputs are only ports capable of power management
* any attempts on powering down a input port cause the
* referenced VREF to act quirky.
*/
if (pinctl & AC_PINCTL_IN_EN)
continue;
enable_pin_detect(codec, spec->pwr_nids[i], event | i);
codec->patch_ops.unsol_event(codec, (event | i) << 26);
}

if (cfg->dig_out_pin)
stac92xx_auto_set_pinctl(codec, cfg->dig_out_pin,
Expand Down Expand Up @@ -2869,12 +2906,37 @@ static void stac92xx_hp_detect(struct hda_codec *codec, unsigned int res)
}
}

static void stac92xx_pin_sense(struct hda_codec *codec, int idx)
{
struct sigmatel_spec *spec = codec->spec;
hda_nid_t nid = spec->pwr_nids[idx];
int presence, val;
val = snd_hda_codec_read(codec, codec->afg, 0, 0x0fec, 0x0)
& 0x000000ff;
presence = get_hp_pin_presence(codec, nid);
idx = 1 << idx;

if (presence)
val &= ~idx;
else
val |= idx;

/* power down unused output ports */
snd_hda_codec_write(codec, codec->afg, 0, 0x7ec, val);
};

static void stac92xx_unsol_event(struct hda_codec *codec, unsigned int res)
{
switch (res >> 26) {
struct sigmatel_spec *spec = codec->spec;
int idx = res >> 26 & 0x0f;

switch ((res >> 26) & 0x30) {
case STAC_HP_EVENT:
stac92xx_hp_detect(codec, res);
break;
/* fallthru */
case STAC_PWR_EVENT:
if (spec->num_pwrs > 0)
stac92xx_pin_sense(codec, idx);
}
}

Expand Down Expand Up @@ -2945,6 +3007,7 @@ static int patch_stac9200(struct hda_codec *codec)
spec->num_muxes = 1;
spec->num_dmics = 0;
spec->num_adcs = 1;
spec->num_pwrs = 0;

if (spec->board_config == STAC_9200_GATEWAY)
spec->init = stac9200_eapd_init;
Expand Down Expand Up @@ -3000,6 +3063,7 @@ static int patch_stac925x(struct hda_codec *codec)
spec->mux_nids = stac925x_mux_nids;
spec->num_muxes = 1;
spec->num_adcs = 1;
spec->num_pwrs = 0;
switch (codec->vendor_id) {
case 0x83847632: /* STAC9202 */
case 0x83847633: /* STAC9202D */
Expand Down Expand Up @@ -3123,6 +3187,9 @@ static int patch_stac92hd73xx(struct hda_codec *codec)
spec->gpio_mask = spec->gpio_data = 0x000001;
stac92xx_enable_gpio_mask(codec);

spec->num_pwrs = ARRAY_SIZE(stac92hd73xx_pwr_nids);
spec->pwr_nids = stac92hd73xx_pwr_nids;

err = stac92xx_parse_auto_config(codec, 0x22, 0x24);

if (!err) {
Expand Down Expand Up @@ -3205,6 +3272,9 @@ static int patch_stac92hd71bxx(struct hda_codec *codec)
spec->num_dmics = STAC92HD71BXX_NUM_DMICS;
spec->num_dmuxes = ARRAY_SIZE(stac92hd71bxx_dmux_nids);

spec->num_pwrs = ARRAY_SIZE(stac92hd71bxx_pwr_nids);
spec->pwr_nids = stac92hd71bxx_pwr_nids;

spec->multiout.num_dacs = 2;
spec->multiout.hp_nid = 0x11;
spec->multiout.dac_nids = stac92hd71bxx_dac_nids;
Expand Down Expand Up @@ -3299,6 +3369,7 @@ static int patch_stac922x(struct hda_codec *codec)
spec->num_muxes = ARRAY_SIZE(stac922x_mux_nids);
spec->num_adcs = ARRAY_SIZE(stac922x_adc_nids);
spec->num_dmics = 0;
spec->num_pwrs = 0;

spec->init = stac922x_core_init;
spec->mixer = stac922x_mixer;
Expand Down Expand Up @@ -3405,6 +3476,7 @@ static int patch_stac927x(struct hda_codec *codec)
spec->mixer = stac927x_mixer;
}

spec->num_pwrs = 0;
spec->aloopback_mask = 0x40;
spec->aloopback_shift = 0;

Expand Down Expand Up @@ -3466,6 +3538,7 @@ static int patch_stac9205(struct hda_codec *codec)
spec->num_dmics = STAC9205_NUM_DMICS;
spec->dmux_nids = stac9205_dmux_nids;
spec->num_dmuxes = ARRAY_SIZE(stac9205_dmux_nids);
spec->num_pwrs = 0;

spec->init = stac9205_core_init;
spec->mixer = stac9205_mixer;
Expand Down Expand Up @@ -3728,6 +3801,7 @@ static int patch_stac9872(struct hda_codec *codec)
spec->multiout.hp_nid = VAIO_HP_DAC;
spec->num_adcs = ARRAY_SIZE(vaio_adcs);
spec->adc_nids = vaio_adcs;
spec->num_pwrs = 0;
spec->input_mux = &vaio_mux;
spec->mux_nids = vaio_mux_nids;
codec->patch_ops = stac9872_vaio_patch_ops;
Expand All @@ -3741,6 +3815,7 @@ static int patch_stac9872(struct hda_codec *codec)
spec->multiout.dac_nids = vaio_dacs;
spec->multiout.hp_nid = VAIO_HP_DAC;
spec->num_adcs = ARRAY_SIZE(vaio_adcs);
spec->num_pwrs = 0;
spec->adc_nids = vaio_adcs;
spec->input_mux = &vaio_mux;
spec->mux_nids = vaio_mux_nids;
Expand Down

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