[ALSA] hda: Add GPIO mute support to STAC9205

Support added for detecting HP jack presence via GPIO on several laptop docks.

Signed-off-by: Matthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

1 files changed, 45 insertions, 17 deletions

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 46c237b0e694..7c8cd59852ec 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -122,7 +122,13 @@ struct sigmatel_spec {
         unsigned int alt_switch: 1;
         unsigned int hp_detect: 1;
 
-        unsigned int gpio_mask, gpio_data;
+        /* gpio lines */
+        unsigned int gpio_mask;
+        unsigned int gpio_dir;
+        unsigned int gpio_data;
+        unsigned int gpio_mute;
+
+        /* analog loopback */
         unsigned char aloopback_mask;
         unsigned char aloopback_shift;
 
@@ -2803,13 +2809,13 @@ static int stac9200_parse_auto_config(struct hda_codec *codec)
  */
 
 static void stac_gpio_set(struct hda_codec *codec, unsigned int mask,
-                          unsigned int data)
+                          unsigned int dir_mask, unsigned int data)
 {
         unsigned int gpiostate, gpiomask, gpiodir;
 
         gpiostate = snd_hda_codec_read(codec, codec->afg, 0,
                                        AC_VERB_GET_GPIO_DATA, 0);
-        gpiostate = (gpiostate & ~mask) | (data & mask);
+        gpiostate = (gpiostate & ~dir_mask) | (data & dir_mask);
 
         gpiomask = snd_hda_codec_read(codec, codec->afg, 0,
                                       AC_VERB_GET_GPIO_MASK, 0);
@@ -2817,7 +2823,7 @@ static void stac_gpio_set(struct hda_codec *codec, unsigned int mask,
 
         gpiodir = snd_hda_codec_read(codec, codec->afg, 0,
                                      AC_VERB_GET_GPIO_DIRECTION, 0);
-        gpiodir |= mask;
+        gpiodir |= dir_mask;
 
         /* Configure GPIOx as CMOS */
         snd_hda_codec_write(codec, codec->afg, 0, 0x7e7, 0);
@@ -2912,7 +2918,8 @@ static int stac92xx_init(struct hda_codec *codec)
                 stac92xx_auto_set_pinctl(codec, cfg->dig_in_pin,
                                          AC_PINCTL_IN_EN);
 
-        stac_gpio_set(codec, spec->gpio_mask, spec->gpio_data);
+        stac_gpio_set(codec, spec->gpio_mask,
+                                        spec->gpio_dir, spec->gpio_data);
 
         return 0;
 }
@@ -3002,10 +3009,14 @@ static void stac92xx_hp_detect(struct hda_codec *codec, unsigned int res)
         int i, presence;
 
         presence = 0;
+        if (spec->gpio_mute)
+                presence = !(snd_hda_codec_read(codec, codec->afg, 0,
+                        AC_VERB_GET_GPIO_DATA, 0) & spec->gpio_mute);
+
         for (i = 0; i < cfg->hp_outs; i++) {
-                presence = get_hp_pin_presence(codec, cfg->hp_pins[i]);
                 if (presence)
                         break;
+                presence = get_hp_pin_presence(codec, cfg->hp_pins[i]);
         }
 
         if (presence) {
@@ -3068,7 +3079,8 @@ static int stac92xx_resume(struct hda_codec *codec)
 
         stac92xx_set_config_regs(codec);
         snd_hda_sequence_write(codec, spec->init);
-        stac_gpio_set(codec, spec->gpio_mask, spec->gpio_data);
+        stac_gpio_set(codec, spec->gpio_mask,
+                spec->gpio_dir, spec->gpio_data);
         snd_hda_codec_resume_amp(codec);
         snd_hda_codec_resume_cache(codec);
         /* invoke unsolicited event to reset the HP state */
@@ -3302,7 +3314,8 @@ again:
         spec->num_dmuxes = ARRAY_SIZE(stac92hd73xx_dmux_nids);
         spec->dinput_mux = &stac92hd73xx_dmux;
         /* GPIO0 High = Enable EAPD */
-        spec->gpio_mask = spec->gpio_data = 0x000001;
+        spec->gpio_mask = spec->gpio_dir = 0x1;
+        spec->gpio_data = 0x01;
 
         spec->num_pwrs = ARRAY_SIZE(stac92hd73xx_pwr_nids);
         spec->pwr_nids = stac92hd73xx_pwr_nids;
@@ -3376,7 +3389,8 @@ again:
         spec->aloopback_mask = 0x20;
         spec->aloopback_shift = 0;
 
-        spec->gpio_mask = spec->gpio_data = 0x00000001; /* GPIO0 High = EAPD */
+        /* GPIO0 High = EAPD */
+        spec->gpio_mask = spec->gpio_dir = spec->gpio_data = 0x1;
 
         spec->mux_nids = stac92hd71bxx_mux_nids;
         spec->adc_nids = stac92hd71bxx_adc_nids;
@@ -3432,7 +3446,8 @@ static int patch_stac922x(struct hda_codec *codec)
                                                         stac922x_models,
                                                         stac922x_cfg_tbl);
         if (spec->board_config == STAC_INTEL_MAC_V3) {
-                spec->gpio_mask = spec->gpio_data = 0x03;
+                spec->gpio_mask = spec->gpio_dir = 0x03;
+                spec->gpio_data = 0x03;
                 /* Intel Macs have all same PCI SSID, so we need to check
                  * codec SSID to distinguish the exact models
                  */
@@ -3560,7 +3575,8 @@ static int patch_stac927x(struct hda_codec *codec)
         case STAC_D965_3ST:
         case STAC_D965_5ST:
                 /* GPIO0 High = Enable EAPD */
-                spec->gpio_mask = spec->gpio_data = 0x00000001;
+                spec->gpio_mask = spec->gpio_dir = 0x01;
+                spec->gpio_data = 0x01;
                 spec->num_dmics = 0;
 
                 spec->init = d965_core_init;
@@ -3574,7 +3590,8 @@ static int patch_stac927x(struct hda_codec *codec)
                 /* fallthru */
         case STAC_DELL_3ST:
                 /* GPIO2 High = Enable EAPD */
-                spec->gpio_mask = spec->gpio_data = 0x00000004;
+                spec->gpio_mask = spec->gpio_dir = 0x04;
+                spec->gpio_data = 0x04;
                 spec->dmic_nids = stac927x_dmic_nids;
                 spec->num_dmics = STAC927X_NUM_DMICS;
 
@@ -3585,7 +3602,8 @@ static int patch_stac927x(struct hda_codec *codec)
                 break;
         default:
                 /* GPIO0 High = Enable EAPD */
-                spec->gpio_mask = spec->gpio_data = 0x00000001;
+                spec->gpio_mask = spec->gpio_dir = 0x1;
+                spec->gpio_data = 0x01;
                 spec->num_dmics = 0;
 
                 spec->init = stac927x_core_init;
@@ -3680,15 +3698,25 @@ static int patch_stac9205(struct hda_codec *codec)
                 stac92xx_set_config_reg(codec, 0x1f, 0x01441030);
                 stac92xx_set_config_reg(codec, 0x20, 0x1c410030);
 
-                spec->gpio_mask = 0x0000000b;
+                /* Enable unsol response for GPIO4/Dock HP connection */
+                snd_hda_codec_write(codec, codec->afg, 0,
+                        AC_VERB_SET_GPIO_UNSOLICITED_RSP_MASK, 0x10);
+                snd_hda_codec_write_cache(codec, codec->afg, 0,
+                                          AC_VERB_SET_UNSOLICITED_ENABLE,
+                                          (AC_USRSP_EN | STAC_HP_EVENT));
+
+                spec->gpio_dir = 0x0b;
+                spec->gpio_mask = 0x1b;
+                spec->gpio_mute = 0x10;
                 /* GPIO0 High = EAPD, GPIO1 Low = Headphone Mute,
-                 * GPIO3 High = DRM
+                 * GPIO3 Low = DRM
                  */
-                spec->gpio_data = 0x00000009;
+                spec->gpio_data = 0x01;
                 break;
         default:
                 /* GPIO0 High = EAPD */
-                spec->gpio_mask = spec->gpio_data = 0x00000001;
+                spec->gpio_mask = spec->gpio_dir = 0x1;
+                spec->gpio_data = 0x01;
                 break;
         }