diff options
| -rw-r--r-- | sound/pci/ac97/ac97_patch.c | 103 |
1 files changed, 99 insertions, 4 deletions
diff --git a/sound/pci/ac97/ac97_patch.c b/sound/pci/ac97/ac97_patch.c index 43455fc07b7..3eac0f86266 100644 --- a/sound/pci/ac97/ac97_patch.c +++ b/sound/pci/ac97/ac97_patch.c @@ -3277,16 +3277,111 @@ static int patch_vt1616(struct snd_ac97 * ac97) /* * VT1617A codec */ -static int patch_vt1617a(struct snd_ac97 * ac97) + +/* + * unfortunately, the vt1617a stashes the twiddlers required for + * nooding the i/o jacks on 2 different regs. * thameans that we cant + * use the easy way provided by AC97_ENUM_DOUBLE() we have to write + * are own funcs. + * + * NB: this is absolutely and utterly different from the vt1618. dunno + * about the 1616. + */ + +/* copied from ac97_surround_jack_mode_info() */ +static int snd_ac97_vt1617a_smart51_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) { - /* bring analog power consumption to normal, like WinXP driver - * for EPIA SP + /* ordering in this list reflects vt1617a docs for Reg 20 and + * 7a and Table 6 that lays out the matrix NB WRT Table6: SM51 + * is SM51EN *AND* it's Bit14, not Bit15 so the table is very + * counter-intuitive */ + + static const char* texts[] = { "LineIn Mic1", "LineIn Mic1 Mic3", + "Surr LFE/C Mic3", "LineIn LFE/C Mic3", + "LineIn Mic2", "LineIn Mic2 Mic1", + "Surr LFE Mic1", "Surr LFE Mic1 Mic2"}; + return ac97_enum_text_info(kcontrol, uinfo, texts, 8); +} + +static int snd_ac97_vt1617a_smart51_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ushort usSM51, usMS; + + struct snd_ac97 *pac97; + + pac97 = snd_kcontrol_chip(kcontrol); /* grab codec handle */ + + /* grab our desirec bits, then mash them together in a manner + * consistent with Table 6 on page 17 in the 1617a docs */ + + usSM51 = snd_ac97_read(pac97, 0x7a) >> 14; + usMS = snd_ac97_read(pac97, 0x20) >> 8; + + ucontrol->value.enumerated.item[0] = (usSM51 << 1) + usMS; + + return 0; +} + +static int snd_ac97_vt1617a_smart51_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ushort usSM51, usMS, usReg; + + struct snd_ac97 *pac97; + + pac97 = snd_kcontrol_chip(kcontrol); /* grab codec handle */ + + usSM51 = ucontrol->value.enumerated.item[0] >> 1; + usMS = ucontrol->value.enumerated.item[0] & 1; + + /* push our values into the register - consider that things will be left + * in a funky state if the write fails */ + + usReg = snd_ac97_read(pac97, 0x7a); + snd_ac97_write_cache(pac97, 0x7a, (usReg & 0x3FFF) + (usSM51 << 14)); + usReg = snd_ac97_read(pac97, 0x20); + snd_ac97_write_cache(pac97, 0x20, (usReg & 0xFEFF) + (usMS << 8)); + + return 0; +} + +static const struct snd_kcontrol_new snd_ac97_controls_vt1617a[] = { + + AC97_SINGLE("Center/LFE Exchange", 0x5a, 8, 1, 0), + /* + * These are used to enable/disable surround sound on motherboards + * that have 3 bidirectional analog jacks + */ + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Smart 5.1 Select", + .info = snd_ac97_vt1617a_smart51_info, + .get = snd_ac97_vt1617a_smart51_get, + .put = snd_ac97_vt1617a_smart51_put, + }, +}; + +int patch_vt1617a(struct snd_ac97 * ac97) +{ + int err = 0; + + /* we choose to not fail out at this point, but we tell the + caller when we return */ + + err = patch_build_controls(ac97, &snd_ac97_controls_vt1617a[0], + ARRAY_SIZE(snd_ac97_controls_vt1617a)); + + /* bring analog power consumption to normal by turning off the + * headphone amplifier, like WinXP driver for EPIA SP */ snd_ac97_write_cache(ac97, 0x5c, 0x20); ac97->ext_id |= AC97_EI_SPDIF; /* force the detection of spdif */ ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000; ac97->build_ops = &patch_vt1616_ops; - return 0; + + return err; } /* |