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Old 07-11-2012, 03:03 PM
Chris J Arges
 
Default Background noise or low volume (phase inversion)

This is a multi-part message in MIME format.BugLink: http://launchpad.net/bugs/903853

Precise SRU Justification:

Impact:
IdeaPad U300s's microphone is quiet/noisy.

Fix:
These patches by David Henningsson in Quantal were backported to Precise.

Testcase:
Using the IdeaPad U300s, try capturing audio using the microphone and
ensure it works properly.

2 Patches Attached.

Thanks,
--chris j arges
 
Old 07-11-2012, 06:05 PM
Andy Whitcroft
 
Default Background noise or low volume (phase inversion)

On Wed, Jul 11, 2012 at 10:03:18AM -0500, Chris J Arges wrote:
> BugLink: http://launchpad.net/bugs/903853
>
> Precise SRU Justification:
>
> Impact:
> IdeaPad U300s's microphone is quiet/noisy.
>
> Fix:
> These patches by David Henningsson in Quantal were backported to Precise.
>
> Testcase:
> Using the IdeaPad U300s, try capturing audio using the microphone and
> ensure it works properly.
>
> 2 Patches Attached.
>
> Thanks,
> --chris j arges

> From 528c995e3848e646891b96b73ba2dde5d7a92c6e Mon Sep 17 00:00:00 2001
> From: David Henningsson <david.henningsson@canonical.com>
> Date: Mon, 2 Apr 2012 15:40:27 +0200
> Subject: [PATCH 1/2] ALSA: hda - Fix internal mic for Lenovo Ideapad U300s
>
> The internal mic input is phase inverted on one channel.
> To avoid people in userspace summing the channels together
> and get zero result, use a separate mixer control for the
> inverted channel.
>
> BugLink: https://bugs.launchpad.net/bugs/903853
> Signed-off-by: David Henningsson <david.henningsson@canonical.com>
> Signed-off-by: Takashi Iwai <tiwai@suse.de>
> (cherry picked from commit 18dcd3044e4c4b3ab6341c98e8d0e81e0d58d5e3)
>
> Conflicts:
>
> sound/pci/hda/patch_conexant.c

As this conflicted I assume its now 'backported from commit xxxx'.

> Signed-off-by: Chris J Arges <chris.j.arges@canonical.com>
> ---
> sound/pci/hda/patch_conexant.c | 92 +++++++++++++++++++++++++++++++++-------
> 1 file changed, 77 insertions(+), 15 deletions(-)
>
> diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
> index a8a879b..ad4d757 100644
> --- a/sound/pci/hda/patch_conexant.c
> +++ b/sound/pci/hda/patch_conexant.c
> @@ -140,6 +140,7 @@ struct conexant_spec {
> unsigned int asus:1;
> unsigned int pin_eapd_ctrls:1;
> unsigned int single_adc_amp:1;
> + unsigned int fixup_stereo_dmic:1;
>
> unsigned int adc_switching:1;
>
> @@ -4061,9 +4062,9 @@ static int cx_auto_init(struct hda_codec *codec)
>
> static int cx_auto_add_volume_idx(struct hda_codec *codec, const char *basename,
> const char *dir, int cidx,
> - hda_nid_t nid, int hda_dir, int amp_idx)
> + hda_nid_t nid, int hda_dir, int amp_idx, int chs)
> {
> - static char name[32];
> + static char name[44];
> static struct snd_kcontrol_new knew[] = {
> HDA_CODEC_VOLUME(name, 0, 0, 0),
> HDA_CODEC_MUTE(name, 0, 0, 0),
> @@ -4073,7 +4074,7 @@ static int cx_auto_add_volume_idx(struct hda_codec *codec, const char *basename,
>
> for (i = 0; i < 2; i++) {
> struct snd_kcontrol *kctl;
> - knew[i].private_value = HDA_COMPOSE_AMP_VAL(nid, 3, amp_idx,
> + knew[i].private_value = HDA_COMPOSE_AMP_VAL(nid, chs, amp_idx,
> hda_dir);
> knew[i].subdevice = HDA_SUBDEV_AMP_FLAG;
> knew[i].index = cidx;
> @@ -4092,7 +4093,7 @@ static int cx_auto_add_volume_idx(struct hda_codec *codec, const char *basename,
> }
>
> #define cx_auto_add_volume(codec, str, dir, cidx, nid, hda_dir)
> - cx_auto_add_volume_idx(codec, str, dir, cidx, nid, hda_dir, 0)
> + cx_auto_add_volume_idx(codec, str, dir, cidx, nid, hda_dir, 0, 3)
>
> #define cx_auto_add_pb_volume(codec, nid, str, idx)
> cx_auto_add_volume(codec, str, " Playback", idx, nid, HDA_OUTPUT)
> @@ -4162,6 +4163,36 @@ static int cx_auto_build_output_controls(struct hda_codec *codec)
> return 0;
> }
>
> +/* Returns zero if this is a normal stereo channel, and non-zero if it should
> + be split in two independent channels.
> + dest_label must be at least 44 characters. */
> +static int cx_auto_get_rightch_label(struct hda_codec *codec, const char *label,
> + char *dest_label, int nid)
> +{
> + struct conexant_spec *spec = codec->spec;
> + int i;
> +
> + if (!spec->fixup_stereo_dmic)
> + return 0;
> +
> + for (i = 0; i < AUTO_CFG_MAX_INS; i++) {
> + int def_conf;
> + if (spec->autocfg.inputs[i].pin != nid)
> + continue;
> +
> + if (spec->autocfg.inputs[i].type != AUTO_PIN_MIC)
> + return 0;
> + def_conf = snd_hda_codec_get_pincfg(codec, nid);
> + if (snd_hda_get_input_pin_attr(def_conf) != INPUT_PIN_ATTR_INT)
> + return 0;
> +
> + /* Finally found the inverted internal mic! */
> + snprintf(dest_label, 44, "Inverted %s", label);
> + return 1;
> + }
> + return 0;
> +}
> +
> static int cx_auto_add_capture_volume(struct hda_codec *codec, hda_nid_t nid,
> const char *label, const char *pfx,
> int cidx)
> @@ -4170,14 +4201,25 @@ static int cx_auto_add_capture_volume(struct hda_codec *codec, hda_nid_t nid,
> int i;
>
> for (i = 0; i < spec->num_adc_nids; i++) {
> + char rightch_label[44];
> hda_nid_t adc_nid = spec->adc_nids[i];
> int idx = get_input_connection(codec, adc_nid, nid);
> if (idx < 0)
> continue;
> if (spec->single_adc_amp)
> idx = 0;
> +
> + if (cx_auto_get_rightch_label(codec, label, rightch_label, nid)) {
> + /* Make two independent kcontrols for left and right */
> + int err = cx_auto_add_volume_idx(codec, label, pfx,
> + cidx, adc_nid, HDA_INPUT, idx, 1);
> + if (err < 0)
> + return err;
> + return cx_auto_add_volume_idx(codec, rightch_label, pfx,
> + cidx, adc_nid, HDA_INPUT, idx, 2);
> + }
> return cx_auto_add_volume_idx(codec, label, pfx,
> - cidx, adc_nid, HDA_INPUT, idx);
> + cidx, adc_nid, HDA_INPUT, idx, 3);
> }
> return 0;
> }
> @@ -4190,9 +4232,19 @@ static int cx_auto_add_boost_volume(struct hda_codec *codec, int idx,
> int i, con;
>
> nid = spec->imux_info[idx].pin;
> - if (get_wcaps(codec, nid) & AC_WCAP_IN_AMP)
> + if (get_wcaps(codec, nid) & AC_WCAP_IN_AMP) {
> + char rightch_label[44];
> + if (cx_auto_get_rightch_label(codec, label, rightch_label, nid)) {
> + int err = cx_auto_add_volume_idx(codec, label, " Boost",
> + cidx, nid, HDA_INPUT, 0, 1);
> + if (err < 0)
> + return err;
> + return cx_auto_add_volume_idx(codec, rightch_label, " Boost",
> + cidx, nid, HDA_INPUT, 0, 2);
> + }
> return cx_auto_add_volume(codec, label, " Boost", cidx,
> nid, HDA_INPUT);
> + }
> con = __select_input_connection(codec, spec->imux_info[idx].adc, nid,
> &mux, false, 0);
> if (con < 0)
> @@ -4353,23 +4405,31 @@ static void apply_pincfg(struct hda_codec *codec, const struct cxt_pincfg *cfg)
>
> }
>
> -static void apply_pin_fixup(struct hda_codec *codec,
> +enum {
> + CXT_PINCFG_LENOVO_X200,
> + CXT_FIXUP_STEREO_DMIC,
> + CXT_PINCFG_LENOVO_TP410,
> +};
> +
> +static void apply_fixup(struct hda_codec *codec,
> const struct snd_pci_quirk *quirk,
> const struct cxt_pincfg **table)
> {
> + struct conexant_spec *spec = codec->spec;
> +
> quirk = snd_pci_quirk_lookup(codec->bus->pci, quirk);
> - if (quirk) {
> + if (quirk && table[quirk->value]) {
> snd_printdd(KERN_INFO "hda_codec: applying pincfg for %s
",
> quirk->name);
> apply_pincfg(codec, table[quirk->value]);
> }
> + if (quirk->value == CXT_FIXUP_STEREO_DMIC) {
> + snd_printdd(KERN_INFO "hda_codec: applying internal mic workaround for %s
",
> + quirk->name);
> + spec->fixup_stereo_dmic = 1;
> + }
> }
>
> -enum {
> - CXT_PINCFG_LENOVO_X200,
> - CXT_PINCFG_LENOVO_TP410,
> -};
> -
> /* ThinkPad X200 & co with cxt5051 */
> static const struct cxt_pincfg cxt_pincfg_lenovo_x200[] = {
> { 0x16, 0x042140ff }, /* HP (seq# overridden) */
> @@ -4389,10 +4449,12 @@ static const struct cxt_pincfg cxt_pincfg_lenovo_tp410[] = {
> static const struct cxt_pincfg *cxt_pincfg_tbl[] = {
> [CXT_PINCFG_LENOVO_X200] = cxt_pincfg_lenovo_x200,
> [CXT_PINCFG_LENOVO_TP410] = cxt_pincfg_lenovo_tp410,
> + [CXT_FIXUP_STEREO_DMIC] = NULL,
> };
>
> static const struct snd_pci_quirk cxt5051_fixups[] = {
> SND_PCI_QUIRK(0x17aa, 0x20f2, "Lenovo X200", CXT_PINCFG_LENOVO_X200),
> + SND_PCI_QUIRK(0x17aa, 0x3975, "Lenovo U300s", CXT_FIXUP_STEREO_DMIC),
> {}
> };
>
> @@ -4441,10 +4503,10 @@ static int patch_conexant_auto(struct hda_codec *codec)
> break;
> case 0x14f15051:
> add_cx5051_fake_mutes(codec);
> - apply_pin_fixup(codec, cxt5051_fixups, cxt_pincfg_tbl);
> + apply_fixup(codec, cxt5051_fixups, cxt_pincfg_tbl);
> break;
> default:
> - apply_pin_fixup(codec, cxt5066_fixups, cxt_pincfg_tbl);
> + apply_fixup(codec, cxt5066_fixups, cxt_pincfg_tbl);
> break;
> }
>
> --
> 1.7.9.5
>

> From 42fadf694099746db0ddeac03f95d79ebcd82bf1 Mon Sep 17 00:00:00 2001
> From: David Henningsson <david.henningsson@canonical.com>
> Date: Tue, 10 Apr 2012 13:05:29 +0200
> Subject: [PATCH 2/2] ALSA: hda - Fix oops caused by recent commit "Fix
> internal mic for Lenovo Ideapad U300s"
>
> Make sure we don't dereference the "quirk" pointer when it is null.
>
> Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
> Signed-off-by: David Henningsson <david.henningsson@canonical.com>
> Signed-off-by: Takashi Iwai <tiwai@suse.de>
> (cherry picked from commit 83b0c6ba999643ee8ad6329f26e1cdc870e1a920)
>
> BugLink: https://bugs.launchpad.net/bugs/903853

This buglink is in a differnet place from the previous one which seems a
little random.

> Signed-off-by: Chris J Arges <chris.j.arges@canonical.com>
> ---
> sound/pci/hda/patch_conexant.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
> index ad4d757..7b7399e 100644
> --- a/sound/pci/hda/patch_conexant.c
> +++ b/sound/pci/hda/patch_conexant.c
> @@ -4418,7 +4418,9 @@ static void apply_fixup(struct hda_codec *codec,
> struct conexant_spec *spec = codec->spec;
>
> quirk = snd_pci_quirk_lookup(codec->bus->pci, quirk);
> - if (quirk && table[quirk->value]) {
> + if (!quirk)
> + return;
> + if (table[quirk->value]) {
> snd_printdd(KERN_INFO "hda_codec: applying pincfg for %s
",
> quirk->name);
> apply_pincfg(codec, table[quirk->value]);

Otherwise (assuming this has had some testing) this look like it does
what is claimed.

Acked-by: Andy Whitcroft <apw@canonical.com>

-apw

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