[ALSA] hda: 92HD7XXX power management support
authorMatthew Ranostay <mranostay@embeddedalley.com>
Thu, 10 Jan 2008 15:55:06 +0000 (16:55 +0100)
committerJaroslav Kysela <perex@perex.cz>
Thu, 31 Jan 2008 16:29:54 +0000 (17:29 +0100)
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>
sound/pci/hda/patch_sigmatel.c

index 190e112f2f8ef21fb5c4bdc232ce29f2fc081950..0e85e4759eb4ca603c5db777fd10fd0fcaf0bd44 100644 (file)
@@ -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,
@@ -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];
@@ -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
 };
@@ -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,
 };
@@ -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 */
@@ -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;
@@ -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,
@@ -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);
        }
 }
 
@@ -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;
@@ -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 */
@@ -3123,6 +3187,9 @@ again:
        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) {
@@ -3205,6 +3272,9 @@ again:
        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;
@@ -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;
@@ -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;
 
@@ -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;
@@ -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;
@@ -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;