ALSA: hda - Enable GPIO control for mute LED on HP systems
authorVitaliy Kulikov <Vitaliy.Kulikov@idt.com>
Wed, 4 Nov 2009 06:57:45 +0000 (07:57 +0100)
committerTakashi Iwai <tiwai@suse.de>
Wed, 4 Nov 2009 06:57:45 +0000 (07:57 +0100)
This patch enables GPIO to control mute LED indicator on the HP systems
with the special string in BIOS and applies it with the correct polarity on
HP B-series systems.

It also restores configuration of the pin intended as the second Headphone
on HP B-series systems but configured as something else in the BIOS to
pass MS DTM.

Signed-off-by: Vitaliy Kulikov <Vitaliy.Kulikov@idt.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/pci/hda/patch_sigmatel.c

index 66c0876..b513eba 100644 (file)
@@ -28,6 +28,7 @@
 #include <linux/delay.h>
 #include <linux/slab.h>
 #include <linux/pci.h>
+#include <linux/dmi.h>
 #include <sound/core.h>
 #include <sound/asoundef.h>
 #include <sound/jack.h>
@@ -1693,6 +1694,8 @@ static struct snd_pci_quirk stac92hd71bxx_cfg_tbl[] = {
                      "DFI LanParty", STAC_92HD71BXX_REF),
        SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x30fb,
                      "HP dv4-1222nr", STAC_HP_DV4_1222NR),
+       SND_PCI_QUIRK_MASK(PCI_VENDOR_ID_HP, 0xfff0, 0x1720,
+                         "HP", STAC_HP_DV5),
        SND_PCI_QUIRK_MASK(PCI_VENDOR_ID_HP, 0xfff0, 0x3080,
                      "HP", STAC_HP_DV5),
        SND_PCI_QUIRK_MASK(PCI_VENDOR_ID_HP, 0xfff0, 0x30f0,
@@ -4730,6 +4733,26 @@ static int stac92xx_resume(struct hda_codec *codec)
        return 0;
 }
 
+static int hp_bseries_system(u32 subsystem_id)
+{
+       switch (subsystem_id) {
+       case 0x103c307e:
+       case 0x103c307f:
+       case 0x103c3080:
+       case 0x103c3081:
+       case 0x103c1722:
+       case 0x103c1723:
+       case 0x103c1724:
+       case 0x103c1725:
+       case 0x103c1726:
+       case 0x103c1727:
+       case 0x103c1728:
+       case 0x103c1729:
+               return 1;
+       }
+       return 0;
+}
+
 /*
  * using power check for controlling mute led of HP notebooks
  * check for mute state only on Speakers (nid = 0x10)
@@ -4754,6 +4777,11 @@ static int stac92xx_hp_check_power_status(struct hda_codec *codec,
                else
                        spec->gpio_data |= spec->gpio_led; /* white */
 
+               if (hp_bseries_system(codec->subsystem_id)) {
+                       /* LED state is inverted on these systems */
+                       spec->gpio_data ^= spec->gpio_led;
+               }
+
                stac_gpio_set(codec, spec->gpio_mask,
                              spec->gpio_dir,
                              spec->gpio_data);
@@ -5243,6 +5271,7 @@ static int patch_stac92hd71bxx(struct hda_codec *codec)
 {
        struct sigmatel_spec *spec;
        struct hda_verb *unmute_init = stac92hd71bxx_unmute_core_init;
+       unsigned int pin_cfg;
        int err = 0;
 
        spec  = kzalloc(sizeof(*spec), GFP_KERNEL);
@@ -5426,6 +5455,45 @@ again:
                break;
        }
 
+       if (hp_bseries_system(codec->subsystem_id)) {
+               pin_cfg = snd_hda_codec_get_pincfg(codec, 0x0f);
+               if (get_defcfg_device(pin_cfg) == AC_JACK_LINE_OUT ||
+                       get_defcfg_device(pin_cfg) == AC_JACK_SPEAKER  ||
+                       get_defcfg_device(pin_cfg) == AC_JACK_HP_OUT) {
+                       /* It was changed in the BIOS to just satisfy MS DTM.
+                        * Lets turn it back into slaved HP
+                        */
+                       pin_cfg = (pin_cfg & (~AC_DEFCFG_DEVICE))
+                                       | (AC_JACK_HP_OUT <<
+                                               AC_DEFCFG_DEVICE_SHIFT);
+                       pin_cfg = (pin_cfg & (~(AC_DEFCFG_DEF_ASSOC
+                                                       | AC_DEFCFG_SEQUENCE)))
+                                                               | 0x1f;
+                       snd_hda_codec_set_pincfg(codec, 0x0f, pin_cfg);
+               }
+       }
+
+       if ((codec->subsystem_id >> 16) == PCI_VENDOR_ID_HP) {
+               const struct dmi_device *dev = NULL;
+               while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING,
+                                             NULL, dev))) {
+                       if (strcmp(dev->name, "HP_Mute_LED_1")) {
+                               switch (codec->vendor_id) {
+                               case 0x111d7608:
+                                       spec->gpio_led = 0x01;
+                                       break;
+                               case 0x111d7600:
+                               case 0x111d7601:
+                               case 0x111d7602:
+                               case 0x111d7603:
+                                       spec->gpio_led = 0x08;
+                                       break;
+                               }
+                               break;
+                       }
+               }
+       }
+
 #ifdef CONFIG_SND_HDA_POWER_SAVE
        if (spec->gpio_led) {
                spec->gpio_mask |= spec->gpio_led;