[ALSA] ac97 - fix various issues with AD1986/AD1986A support

Previously, ac97_codec.c was coded to support AD1986 and AD1986A
CODECs using code written for the AD1985 CODEC. This allowed the
LINE_OUT and HEADPHONE jacks to function properly, however register
differences between the CODECs prevented line and microphone inputs
from functioning.
Specifically, this patch fixes issues with the following mixer
controls: 'V_REFOUT', 'Spread Front to Surround and Center/LFE',
'Exchange Front/Surround', 'Surround Jack Mode', and 'Channel Mode'.
This patch removes the undocumented AD1888 control
'High Pass Filter Enable' and adds the new control
'Exchange Mic/Line In'.

Signed-off-by: Randy Cushman <[e-mail]>
Signed-off-by: Takashi Iwai <[e-mail]>
Signed-off-by: Jaroslav Kysela <[e-mail]>

include/sound/ac97_codec.h

···
 			unsigned short id[3];		// codec IDs (lower 16-bit word)
 			unsigned short pcmreg[3];	// PCM registers
 			unsigned short codec_cfg[3];	// CODEC_CFG bits
+			unsigned char swap_mic_linein;	// AD1986/AD1986A only
 		} ad18xx;
 		unsigned int dev_flags;		/* device specific */
 	} spec;

sound/pci/ac97/ac97_codec.c

···
 { 0x41445372, 0xffffffff, "AD1981A",		patch_ad1981a,	NULL },
 { 0x41445374, 0xffffffff, "AD1981B",		patch_ad1981b,	NULL },
 { 0x41445375, 0xffffffff, "AD1985",		patch_ad1985,	NULL },
-{ 0x41445378, 0xffffffff, "AD1986",		patch_ad1985,	NULL },
+{ 0x41445378, 0xffffffff, "AD1986",		patch_ad1986,	NULL },
 { 0x414c4300, 0xffffff00, "ALC100,100P", 	NULL,		NULL },
 { 0x414c4710, 0xfffffff0, "ALC200,200P",	NULL,		NULL },
 { 0x414c4721, 0xffffffff, "ALC650D",		NULL,	NULL }, /* already patched */

sound/pci/ac97/ac97_patch.c

···
 	return 0;
 }
 
-/* MISC bits */
+/* MISC bits (AD1888/AD1980/AD1985 register 0x76) */
 #define AC97_AD198X_MBC		0x0003	/* mic boost */
 #define AC97_AD198X_MBC_20	0x0000	/* +20dB */
 #define AC97_AD198X_MBC_10	0x0001	/* +10dB */
···
 #define AC97_AD198X_MSPLT	0x2000	/* mute split */
 #define AC97_AD198X_AC97NC	0x4000	/* AC97 no compatible mode */
 #define AC97_AD198X_DACZ	0x8000	/* DAC zero-fill mode */
+
+/* MISC 1 bits (AD1986 register 0x76) */
+#define AC97_AD1986_MBC		0x0003	/* mic boost */
+#define AC97_AD1986_MBC_20	0x0000	/* +20dB */
+#define AC97_AD1986_MBC_10	0x0001	/* +10dB */
+#define AC97_AD1986_MBC_30	0x0002	/* +30dB */
+#define AC97_AD1986_LISEL0	0x0004	/* LINE_IN select bit 0 */
+#define AC97_AD1986_LISEL1	0x0008	/* LINE_IN select bit 1 */
+#define AC97_AD1986_LISEL_MASK	(AC97_AD1986_LISEL1 | AC97_AD1986_LISEL0)
+#define AC97_AD1986_LISEL_LI	0x0000  /* LINE_IN pins as LINE_IN source */
+#define AC97_AD1986_LISEL_SURR	0x0004  /* SURROUND pins as LINE_IN source */
+#define AC97_AD1986_LISEL_MIC	0x0008  /* MIC_1/2 pins as LINE_IN source */
+#define AC97_AD1986_SRU		0x0010	/* sample rate unlock */
+#define AC97_AD1986_SOSEL	0x0020	/* SURROUND_OUT amplifiers input sel */
+#define AC97_AD1986_2MIC	0x0040	/* 2-channel mic select */
+#define AC97_AD1986_SPRD	0x0080	/* SPREAD enable */
+#define AC97_AD1986_DMIX0	0x0100	/* downmix mode: */
+					/*  0 = 6-to-4, 1 = 6-to-2 downmix */
+#define AC97_AD1986_DMIX1	0x0200	/* downmix mode: 1 = enabled */
+#define AC97_AD1986_CLDIS	0x0800	/* center/lfe disable */
+#define AC97_AD1986_SODIS	0x1000	/* SURROUND_OUT disable */
+#define AC97_AD1986_MSPLT	0x2000	/* mute split (read only 1) */
+#define AC97_AD1986_AC97NC	0x4000	/* AC97 no compatible mode (r/o 1) */
+#define AC97_AD1986_DACZ	0x8000	/* DAC zero-fill mode */
+
+/* MISC 2 bits (AD1986 register 0x70) */
+#define AC97_AD_MISC2		0x70	/* Misc Control Bits 2 (AD1986) */
+
+#define AC97_AD1986_CVREF0	0x0004	/* C/LFE VREF_OUT 2.25V */
+#define AC97_AD1986_CVREF1	0x0008	/* C/LFE VREF_OUT 0V */
+#define AC97_AD1986_CVREF2	0x0010	/* C/LFE VREF_OUT 3.7V */
+#define AC97_AD1986_CVREF_MASK \
+	(AC97_AD1986_CVREF2 | AC97_AD1986_CVREF1 | AC97_AD1986_CVREF0)
+#define AC97_AD1986_JSMAP	0x0020	/* Jack Sense Mapping 1 = alternate */
+#define AC97_AD1986_MMDIS	0x0080	/* Mono Mute Disable */
+#define AC97_AD1986_MVREF0	0x0400	/* MIC VREF_OUT 2.25V */
+#define AC97_AD1986_MVREF1	0x0800	/* MIC VREF_OUT 0V */
+#define AC97_AD1986_MVREF2	0x1000	/* MIC VREF_OUT 3.7V */
+#define AC97_AD1986_MVREF_MASK \
+	(AC97_AD1986_MVREF2 | AC97_AD1986_MVREF1 | AC97_AD1986_MVREF0)
+
+/* MISC 3 bits (AD1986 register 0x7a) */
+#define AC97_AD_MISC3		0x7a	/* Misc Control Bits 3 (AD1986) */
+
+#define AC97_AD1986_MMIX	0x0004	/* Mic Mix, left/right */
+#define AC97_AD1986_GPO		0x0008	/* General Purpose Out */
+#define AC97_AD1986_LOHPEN	0x0010	/* LINE_OUT headphone drive */
+#define AC97_AD1986_LVREF0	0x0100	/* LINE_OUT VREF_OUT 2.25V */
+#define AC97_AD1986_LVREF1	0x0200	/* LINE_OUT VREF_OUT 0V */
+#define AC97_AD1986_LVREF2	0x0400	/* LINE_OUT VREF_OUT 3.7V */
+#define AC97_AD1986_LVREF_MASK \
+	(AC97_AD1986_LVREF2 | AC97_AD1986_LVREF1 | AC97_AD1986_LVREF0)
+#define AC97_AD1986_JSINVA	0x0800	/* Jack Sense Invert SENSE_A */
+#define AC97_AD1986_LOSEL	0x1000	/* LINE_OUT amplifiers input select */
+#define AC97_AD1986_HPSEL0	0x2000	/* Headphone amplifiers */
+					/*   input select Surround DACs */
+#define AC97_AD1986_HPSEL1	0x4000	/* Headphone amplifiers input */
+					/*   select C/LFE DACs */
+#define AC97_AD1986_JSINVB	0x8000	/* Jack Sense Invert SENSE_B */
+
+/* Serial Config bits (AD1986 register 0x74) (incomplete) */
+#define AC97_AD1986_OMS0	0x0100	/* Optional Mic Selector bit 0 */
+#define AC97_AD1986_OMS1	0x0200	/* Optional Mic Selector bit 1 */
+#define AC97_AD1986_OMS2	0x0400	/* Optional Mic Selector bit 2 */
+#define AC97_AD1986_OMS_MASK \
+	(AC97_AD1986_OMS2 | AC97_AD1986_OMS1 | AC97_AD1986_OMS0)
+#define AC97_AD1986_OMS_M	0x0000  /* MIC_1/2 pins are MIC sources */
+#define AC97_AD1986_OMS_L	0x0100  /* LINE_IN pins are MIC sources */
+#define AC97_AD1986_OMS_C	0x0200  /* Center/LFE pins are MCI sources */
+#define AC97_AD1986_OMS_MC	0x0400  /* Mix of MIC and C/LFE pins */
+					/*   are MIC sources */
+#define AC97_AD1986_OMS_ML	0x0500  /* MIX of MIC and LINE_IN pins */
+					/*   are MIC sources */
+#define AC97_AD1986_OMS_LC	0x0600  /* MIX of LINE_IN and C/LFE pins */
+					/*   are MIC sources */
+#define AC97_AD1986_OMS_MLC	0x0700  /* MIX of MIC, LINE_IN, C/LFE pins */
+					/*   are MIC sources */
 
 
 static int snd_ac97_ad198x_spdif_source_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
···
 	ac97->ext_id = (ac97->ext_id & ~AC97_EI_REV_MASK) | AC97_EI_REV_23;
 	return 0;
 }
+
+static int snd_ac97_ad1986_bool_info(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+	return 0;
+}
+
+static int snd_ac97_ad1986_lososel_get(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
+	unsigned short val;
+
+	val = ac97->regs[AC97_AD_MISC3];
+	ucontrol->value.integer.value[0] = (val & AC97_AD1986_LOSEL) != 0;
+	return 0;
+}
+
+static int snd_ac97_ad1986_lososel_put(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
+	int ret0;
+	int ret1;
+	int sprd = (ac97->regs[AC97_AD_MISC] & AC97_AD1986_SPRD) != 0;
+
+	ret0 = snd_ac97_update_bits(ac97, AC97_AD_MISC3, AC97_AD1986_LOSEL,
+					ucontrol->value.integer.value[0] != 0
+				    ? AC97_AD1986_LOSEL : 0);
+	if (ret0 < 0)
+		return ret0;
+
+	/* SOSEL is set to values of "Spread" or "Exchange F/S" controls */
+	ret1 = snd_ac97_update_bits(ac97, AC97_AD_MISC, AC97_AD1986_SOSEL,
+				    (ucontrol->value.integer.value[0] != 0
+				     || sprd)
+				    ? AC97_AD1986_SOSEL : 0);
+	if (ret1 < 0)
+		return ret1;
+
+	return (ret0 > 0 || ret1 > 0) ? 1 : 0;
+}
+
+static int snd_ac97_ad1986_spread_get(struct snd_kcontrol *kcontrol,
+				      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
+	unsigned short val;
+
+	val = ac97->regs[AC97_AD_MISC];
+	ucontrol->value.integer.value[0] = (val & AC97_AD1986_SPRD) != 0;
+	return 0;
+}
+
+static int snd_ac97_ad1986_spread_put(struct snd_kcontrol *kcontrol,
+				      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
+	int ret0;
+	int ret1;
+	int sprd = (ac97->regs[AC97_AD_MISC3] & AC97_AD1986_LOSEL) != 0;
+
+	ret0 = snd_ac97_update_bits(ac97, AC97_AD_MISC, AC97_AD1986_SPRD,
+					ucontrol->value.integer.value[0] != 0
+				    ? AC97_AD1986_SPRD : 0);
+	if (ret0 < 0)
+		return ret0;
+
+	/* SOSEL is set to values of "Spread" or "Exchange F/S" controls */
+	ret1 = snd_ac97_update_bits(ac97, AC97_AD_MISC, AC97_AD1986_SOSEL,
+				    (ucontrol->value.integer.value[0] != 0
+				     || sprd)
+				    ? AC97_AD1986_SOSEL : 0);
+	if (ret1 < 0)
+		return ret1;
+
+	return (ret0 > 0 || ret1 > 0) ? 1 : 0;
+}
+
+static int snd_ac97_ad1986_miclisel_get(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
+
+	ucontrol->value.integer.value[0] = ac97->spec.ad18xx.swap_mic_linein;
+	return 0;
+}
+
+static int snd_ac97_ad1986_miclisel_put(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
+	unsigned char swap = ucontrol->value.integer.value[0] != 0;
+
+	if (swap != ac97->spec.ad18xx.swap_mic_linein) {
+		ac97->spec.ad18xx.swap_mic_linein = swap;
+		if (ac97->build_ops->update_jacks)
+			ac97->build_ops->update_jacks(ac97);
+		return 1;
+	}
+	return 0;
+}
+
+static int snd_ac97_ad1986_vrefout_get(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
+{
+	/* Use MIC_1/2 V_REFOUT as the "get" value */
+	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
+	unsigned short val;
+	unsigned short reg = ac97->regs[AC97_AD_MISC2];
+	if ((reg & AC97_AD1986_MVREF0) != 0)
+		val = 2;
+	else if ((reg & AC97_AD1986_MVREF1) != 0)
+		val = 3;
+	else if ((reg & AC97_AD1986_MVREF2) != 0)
+		val = 1;
+	else
+		val = 0;
+	ucontrol->value.enumerated.item[0] = val;
+	return 0;
+}
+
+static int snd_ac97_ad1986_vrefout_put(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
+	unsigned short cval;
+	unsigned short lval;
+	unsigned short mval;
+	int cret;
+	int lret;
+	int mret;
+
+	switch (ucontrol->value.enumerated.item[0])
+	{
+	case 0: /* High-Z */
+		cval = 0;
+		lval = 0;
+		mval = 0;
+		break;
+	case 1: /* 3.7 V */
+		cval = AC97_AD1986_CVREF2;
+		lval = AC97_AD1986_LVREF2;
+		mval = AC97_AD1986_MVREF2;
+		break;
+	case 2: /* 2.25 V */
+		cval = AC97_AD1986_CVREF0;
+		lval = AC97_AD1986_LVREF0;
+		mval = AC97_AD1986_MVREF0;
+		break;
+	case 3: /* 0 V */
+		cval = AC97_AD1986_CVREF1;
+		lval = AC97_AD1986_LVREF1;
+		mval = AC97_AD1986_MVREF1;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	cret = snd_ac97_update_bits(ac97, AC97_AD_MISC2,
+				    AC97_AD1986_CVREF_MASK, cval);
+	if (cret < 0)
+		return cret;
+	lret = snd_ac97_update_bits(ac97, AC97_AD_MISC3,
+				    AC97_AD1986_LVREF_MASK, lval);
+	if (lret < 0)
+		return lret;
+	mret = snd_ac97_update_bits(ac97, AC97_AD_MISC2,
+				    AC97_AD1986_MVREF_MASK, mval);
+	if (mret < 0)
+		return mret;
+
+	return (cret > 0 || lret > 0 || mret > 0) ? 1 : 0;
+}
+
+static const struct snd_kcontrol_new snd_ac97_ad1986_controls[] = {
+	AC97_SINGLE("Exchange Center/LFE", AC97_AD_SERIAL_CFG, 3, 1, 0),
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Exchange Front/Surround",
+		.info = snd_ac97_ad1986_bool_info,
+		.get = snd_ac97_ad1986_lososel_get,
+		.put = snd_ac97_ad1986_lososel_put
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Exchange Mic/Line In",
+		.info = snd_ac97_ad1986_bool_info,
+		.get = snd_ac97_ad1986_miclisel_get,
+		.put = snd_ac97_ad1986_miclisel_put
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Spread Front to Surround and Center/LFE",
+		.info = snd_ac97_ad1986_bool_info,
+		.get = snd_ac97_ad1986_spread_get,
+		.put = snd_ac97_ad1986_spread_put
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Downmix",
+		.info = snd_ac97_ad1888_downmix_info,
+		.get = snd_ac97_ad1888_downmix_get,
+		.put = snd_ac97_ad1888_downmix_put
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "V_REFOUT",
+		.info = snd_ac97_ad1985_vrefout_info,
+		.get = snd_ac97_ad1986_vrefout_get,
+		.put = snd_ac97_ad1986_vrefout_put
+	},
+	AC97_SURROUND_JACK_MODE_CTL,
+	AC97_CHANNEL_MODE_CTL,
+
+	AC97_SINGLE("Headphone Jack Sense", AC97_AD_JACK_SPDIF, 10, 1, 0),
+	AC97_SINGLE("Line Jack Sense", AC97_AD_JACK_SPDIF, 12, 1, 0)
+};
+
+static void ad1986_update_jacks(struct snd_ac97 *ac97)
+{
+	unsigned short misc_val = 0;
+	unsigned short ser_val;
+
+	/* disable SURROUND and CENTER/LFE if not surround mode */
+	if (! is_surround_on(ac97))
+		misc_val |= AC97_AD1986_SODIS;
+	if (! is_clfe_on(ac97))
+		misc_val |= AC97_AD1986_CLDIS;
+
+	/* select line input (default=LINE_IN, SURROUND or MIC_1/2) */
+	if (is_shared_linein(ac97))
+		misc_val |= AC97_AD1986_LISEL_SURR;
+	else if (ac97->spec.ad18xx.swap_mic_linein != 0)
+		misc_val |= AC97_AD1986_LISEL_MIC;
+	snd_ac97_update_bits(ac97, AC97_AD_MISC,
+			     AC97_AD1986_SODIS | AC97_AD1986_CLDIS |
+			     AC97_AD1986_LISEL_MASK,
+			     misc_val);
+
+	/* select microphone input (MIC_1/2, Center/LFE or LINE_IN) */
+	if (is_shared_micin(ac97))
+		ser_val = AC97_AD1986_OMS_C;
+	else if (ac97->spec.ad18xx.swap_mic_linein != 0)
+		ser_val = AC97_AD1986_OMS_L;
+	else
+		ser_val = AC97_AD1986_OMS_M;
+	snd_ac97_update_bits(ac97, AC97_AD_SERIAL_CFG,
+			     AC97_AD1986_OMS_MASK,
+			     ser_val);
+}
+
+static int patch_ad1986_specific(struct snd_ac97 *ac97)
+{
+	int err;
+
+	if ((err = patch_build_controls(ac97, &snd_ac97_ad198x_2cmic, 1)) < 0)
+		return err;
+
+	return patch_build_controls(ac97, snd_ac97_ad1986_controls,
+				    ARRAY_SIZE(snd_ac97_ad1985_controls));
+}
+
+static struct snd_ac97_build_ops patch_ad1986_build_ops = {
+	.build_post_spdif = patch_ad198x_post_spdif,
+	.build_specific = patch_ad1986_specific,
+#ifdef CONFIG_PM
+	.resume = ad18xx_resume,
+#endif
+	.update_jacks = ad1986_update_jacks,
+};
+
+int patch_ad1986(struct snd_ac97 * ac97)
+{
+	patch_ad1881(ac97);
+	ac97->build_ops = &patch_ad1986_build_ops;
+	ac97->flags |= AC97_STEREO_MUTES;
+
+	/* update current jack configuration */
+	ad1986_update_jacks(ac97);
+
+	return 0;
+}
+
 
 /*
  * realtek ALC65x/850 codecs

sound/pci/ac97/ac97_patch.h

···
 int patch_ad1981a(struct snd_ac97 * ac97);
 int patch_ad1981b(struct snd_ac97 * ac97);
 int patch_ad1985(struct snd_ac97 * ac97);
+int patch_ad1986(struct snd_ac97 * ac97);
 int patch_alc650(struct snd_ac97 * ac97);
 int patch_alc655(struct snd_ac97 * ac97);
 int patch_alc850(struct snd_ac97 * ac97);