[V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Hui Wang]

Most Thinkpad Edge series laptops use conexant codec, so far although
the codecs have different minor Vendor Id and minor Subsystem Id,
they all belong to the cxt5066 family, this change can make the
mute/mic-mute LEDs support more generic among cxt_5066 family.

This design refers to the similar solution for the realtek codec
ALC269 family in the patch_realtek.c.

Cc: Alex Hung <alex.hung@canonical.com>
Cc: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
---
 sound/pci/hda/patch_conexant.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index c205bb1..1f2717f 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -3244,9 +3244,29 @@ enum {
 #if IS_ENABLED(CONFIG_THINKPAD_ACPI)
 
 #include <linux/thinkpad_acpi.h>
+#include <acpi/acpi.h>
 
 static int (*led_set_func)(int, bool);
 
+static acpi_status acpi_check_cb(acpi_handle handle, u32 lvl, void *context,
+				 void **rv)
+{
+	bool *found = context;
+	*found = true;
+	return AE_OK;
+}
+
+static bool is_thinkpad(struct hda_codec *codec)
+{
+	bool found = false;
+	if (codec->subsystem_id >> 16 != 0x17aa)
+		return false;
+	if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb, &found, NULL)) && found)
+		return true;
+	found = false;
+	return ACPI_SUCCESS(acpi_get_devices("IBM0068", acpi_check_cb, &found, NULL)) && found;
+}
+
 static void update_tpacpi_mute_led(void *private_data, int enabled)
 {
 	struct hda_codec *codec = private_data;
@@ -3279,6 +3299,8 @@ static void cxt_fixup_thinkpad_acpi(struct hda_codec *codec,
 	bool removefunc = false;
 
 	if (action == HDA_FIXUP_ACT_PROBE) {
+		if (!is_thinkpad(codec))
+			return;
 		if (!led_set_func)
 			led_set_func = symbol_request(tpacpi_led_set);
 		if (!led_set_func) {
@@ -3494,6 +3516,7 @@ static const struct snd_pci_quirk cxt5066_fixups[] = {
 	SND_PCI_QUIRK(0x17aa, 0x3975, "Lenovo U300s", CXT_FIXUP_STEREO_DMIC),
 	SND_PCI_QUIRK(0x17aa, 0x3977, "Lenovo IdeaPad U310", CXT_FIXUP_STEREO_DMIC),
 	SND_PCI_QUIRK(0x17aa, 0x397b, "Lenovo S205", CXT_FIXUP_STEREO_DMIC),
+	SND_PCI_QUIRK_VENDOR(0x17aa, "Thinkpad", CXT_FIXUP_THINKPAD_ACPI),
 	SND_PCI_QUIRK(0x1c06, 0x2011, "Lemote A1004", CXT_PINCFG_LEMOTE_A1004),
 	SND_PCI_QUIRK(0x1c06, 0x2012, "Lemote A1205", CXT_PINCFG_LEMOTE_A1205),
 	{}
-- 
1.8.1.2

Re: [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[David Henningsson]

On 11/27/2013 07:47 AM, Hui Wang wrote:
> Most Thinkpad Edge series laptops use conexant codec, so far although
> the codecs have different minor Vendor Id and minor Subsystem Id,
> they all belong to the cxt5066 family, this change can make the
> mute/mic-mute LEDs support more generic among cxt_5066 family.
> 
> This design refers to the similar solution for the realtek codec
> ALC269 family in the patch_realtek.c.

Looks good to me!

Acked-by: David Henningsson <david.henningsson@canonical.com>

> 
> Cc: Alex Hung <alex.hung@canonical.com>
> Cc: David Henningsson <david.henningsson@canonical.com>
> Signed-off-by: Hui Wang <hui.wang@canonical.com>
> ---
>  sound/pci/hda/patch_conexant.c | 23 +++++++++++++++++++++++
>  1 file changed, 23 insertions(+)
> 
> diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
> index c205bb1..1f2717f 100644
> --- a/sound/pci/hda/patch_conexant.c
> +++ b/sound/pci/hda/patch_conexant.c
> @@ -3244,9 +3244,29 @@ enum {
>  #if IS_ENABLED(CONFIG_THINKPAD_ACPI)
>  
>  #include <linux/thinkpad_acpi.h>
> +#include <acpi/acpi.h>
>  
>  static int (*led_set_func)(int, bool);
>  
> +static acpi_status acpi_check_cb(acpi_handle handle, u32 lvl, void *context,
> +				 void **rv)
> +{
> +	bool *found = context;
> +	*found = true;
> +	return AE_OK;
> +}
> +
> +static bool is_thinkpad(struct hda_codec *codec)
> +{
> +	bool found = false;
> +	if (codec->subsystem_id >> 16 != 0x17aa)
> +		return false;
> +	if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb, &found, NULL)) && found)
> +		return true;
> +	found = false;
> +	return ACPI_SUCCESS(acpi_get_devices("IBM0068", acpi_check_cb, &found, NULL)) && found;
> +}
> +
>  static void update_tpacpi_mute_led(void *private_data, int enabled)
>  {
>  	struct hda_codec *codec = private_data;
> @@ -3279,6 +3299,8 @@ static void cxt_fixup_thinkpad_acpi(struct hda_codec *codec,
>  	bool removefunc = false;
>  
>  	if (action == HDA_FIXUP_ACT_PROBE) {
> +		if (!is_thinkpad(codec))
> +			return;
>  		if (!led_set_func)
>  			led_set_func = symbol_request(tpacpi_led_set);
>  		if (!led_set_func) {
> @@ -3494,6 +3516,7 @@ static const struct snd_pci_quirk cxt5066_fixups[] = {
>  	SND_PCI_QUIRK(0x17aa, 0x3975, "Lenovo U300s", CXT_FIXUP_STEREO_DMIC),
>  	SND_PCI_QUIRK(0x17aa, 0x3977, "Lenovo IdeaPad U310", CXT_FIXUP_STEREO_DMIC),
>  	SND_PCI_QUIRK(0x17aa, 0x397b, "Lenovo S205", CXT_FIXUP_STEREO_DMIC),
> +	SND_PCI_QUIRK_VENDOR(0x17aa, "Thinkpad", CXT_FIXUP_THINKPAD_ACPI),
>  	SND_PCI_QUIRK(0x1c06, 0x2011, "Lemote A1004", CXT_PINCFG_LEMOTE_A1004),
>  	SND_PCI_QUIRK(0x1c06, 0x2012, "Lemote A1205", CXT_PINCFG_LEMOTE_A1205),
>  	{}
> 



-- 
David Henningsson, Canonical Ltd.
https://launchpad.net/~diwic

Re: [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Jan Kiszka]

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On 2013-11-27 07:47, Hui Wang wrote:
> Most Thinkpad Edge series laptops use conexant codec, so far although
> the codecs have different minor Vendor Id and minor Subsystem Id,
> they all belong to the cxt5066 family, this change can make the
> mute/mic-mute LEDs support more generic among cxt_5066 family.
> 
> This design refers to the similar solution for the realtek codec
> ALC269 family in the patch_realtek.c.
> 
> Cc: Alex Hung <alex.hung@canonical.com>
> Cc: David Henningsson <david.henningsson@canonical.com>
> Signed-off-by: Hui Wang <hui.wang@canonical.com>
> ---
>  sound/pci/hda/patch_conexant.c | 23 +++++++++++++++++++++++
>  1 file changed, 23 insertions(+)
> 
> diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
> index c205bb1..1f2717f 100644
> --- a/sound/pci/hda/patch_conexant.c
> +++ b/sound/pci/hda/patch_conexant.c
> @@ -3244,9 +3244,29 @@ enum {
>  #if IS_ENABLED(CONFIG_THINKPAD_ACPI)
>  
>  #include <linux/thinkpad_acpi.h>
> +#include <acpi/acpi.h>
>  
>  static int (*led_set_func)(int, bool);
>  
> +static acpi_status acpi_check_cb(acpi_handle handle, u32 lvl, void *context,
> +				 void **rv)
> +{
> +	bool *found = context;
> +	*found = true;
> +	return AE_OK;
> +}
> +
> +static bool is_thinkpad(struct hda_codec *codec)
> +{
> +	bool found = false;
> +	if (codec->subsystem_id >> 16 != 0x17aa)
> +		return false;
> +	if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb, &found, NULL)) && found)
> +		return true;
> +	found = false;
> +	return ACPI_SUCCESS(acpi_get_devices("IBM0068", acpi_check_cb, &found, NULL)) && found;
> +}
> +
>  static void update_tpacpi_mute_led(void *private_data, int enabled)
>  {
>  	struct hda_codec *codec = private_data;
> @@ -3279,6 +3299,8 @@ static void cxt_fixup_thinkpad_acpi(struct hda_codec *codec,
>  	bool removefunc = false;
>  
>  	if (action == HDA_FIXUP_ACT_PROBE) {
> +		if (!is_thinkpad(codec))
> +			return;
>  		if (!led_set_func)
>  			led_set_func = symbol_request(tpacpi_led_set);
>  		if (!led_set_func) {
> @@ -3494,6 +3516,7 @@ static const struct snd_pci_quirk cxt5066_fixups[] = {
>  	SND_PCI_QUIRK(0x17aa, 0x3975, "Lenovo U300s", CXT_FIXUP_STEREO_DMIC),
>  	SND_PCI_QUIRK(0x17aa, 0x3977, "Lenovo IdeaPad U310", CXT_FIXUP_STEREO_DMIC),
>  	SND_PCI_QUIRK(0x17aa, 0x397b, "Lenovo S205", CXT_FIXUP_STEREO_DMIC),
> +	SND_PCI_QUIRK_VENDOR(0x17aa, "Thinkpad", CXT_FIXUP_THINKPAD_ACPI),
>  	SND_PCI_QUIRK(0x1c06, 0x2011, "Lemote A1004", CXT_PINCFG_LEMOTE_A1004),
>  	SND_PCI_QUIRK(0x1c06, 0x2012, "Lemote A1205", CXT_PINCFG_LEMOTE_A1205),
>  	{}
> 

Starting with this patch, my Lenovo Thinkpad X121e netbook (it's without
any mute LEDs, BTW, there is only a power LED) considers the power
button as hard reset. I have to exclude my machine from that ACPI fixup
(this is on top of current Linus master):

diff --git a/sound/pci/hda/thinkpad_helper.c b/sound/pci/hda/thinkpad_helper.c
index 6ba0b55..7e1a179 100644
--- a/sound/pci/hda/thinkpad_helper.c
+++ b/sound/pci/hda/thinkpad_helper.c
@@ -21,7 +21,8 @@ static acpi_status acpi_check_cb(acpi_handle handle, u32 lvl, void *context,
 static bool is_thinkpad(struct hda_codec *codec)
 {
 	bool found = false;
-	if (codec->subsystem_id >> 16 != 0x17aa)
+	if (codec->subsystem_id >> 16 != 0x17aa ||
+	    codec->subsystem_id == 0x17aa21ec)
 		return false;
 	if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb, &found, NULL)) && found)
 		return true;


Is that the way to address it? Then I can send a proper patch. Any hints
regarding the "why" will be incorporated into its description.

Thanks,
Jan


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Re: [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Hui Wang]

On 06/29/2014 07:33 PM, Jan Kiszka wrote:
> On 2013-11-27 07:47, Hui Wang wrote:
>> Most Thinkpad Edge series laptops use conexant codec, so far although
>> the codecs have different minor Vendor Id and minor Subsystem Id,
>> they all belong to the cxt5066 family, this change can make the
>> mute/mic-mute LEDs support more generic among cxt_5066 family.
>>
>> This design refers to the similar solution for the realtek codec
>> ALC269 family in the patch_realtek.c.
>>
>> Cc: Alex Hung <alex.hung@canonical.com>
>> Cc: David Henningsson <david.henningsson@canonical.com>
>> Signed-off-by: Hui Wang <hui.wang@canonical.com>
>> ---
>>   sound/pci/hda/patch_conexant.c | 23 +++++++++++++++++++++++
>>   1 file changed, 23 insertions(+)
>>
>> diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
>> index c205bb1..1f2717f 100644
>> --- a/sound/pci/hda/patch_conexant.c
>> +++ b/sound/pci/hda/patch_conexant.c
>> @@ -3244,9 +3244,29 @@ enum {
>>   #if IS_ENABLED(CONFIG_THINKPAD_ACPI)
>>   
>>   #include <linux/thinkpad_acpi.h>
>> +#include <acpi/acpi.h>
>>   
>>   static int (*led_set_func)(int, bool);
>>   
>> +static acpi_status acpi_check_cb(acpi_handle handle, u32 lvl, void *context,
>> +				 void **rv)
>> +{
>> +	bool *found = context;
>> +	*found = true;
>> +	return AE_OK;
>> +}
>> +
>> +static bool is_thinkpad(struct hda_codec *codec)
>> +{
>> +	bool found = false;
>> +	if (codec->subsystem_id >> 16 != 0x17aa)
>> +		return false;
>> +	if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb, &found, NULL)) && found)
>> +		return true;
>> +	found = false;
>> +	return ACPI_SUCCESS(acpi_get_devices("IBM0068", acpi_check_cb, &found, NULL)) && found;
>> +}
>> +
>>   static void update_tpacpi_mute_led(void *private_data, int enabled)
>>   {
>>   	struct hda_codec *codec = private_data;
>> @@ -3279,6 +3299,8 @@ static void cxt_fixup_thinkpad_acpi(struct hda_codec *codec,
>>   	bool removefunc = false;
>>   
>>   	if (action == HDA_FIXUP_ACT_PROBE) {
>> +		if (!is_thinkpad(codec))
>> +			return;
>>   		if (!led_set_func)
>>   			led_set_func = symbol_request(tpacpi_led_set);
>>   		if (!led_set_func) {
>> @@ -3494,6 +3516,7 @@ static const struct snd_pci_quirk cxt5066_fixups[] = {
>>   	SND_PCI_QUIRK(0x17aa, 0x3975, "Lenovo U300s", CXT_FIXUP_STEREO_DMIC),
>>   	SND_PCI_QUIRK(0x17aa, 0x3977, "Lenovo IdeaPad U310", CXT_FIXUP_STEREO_DMIC),
>>   	SND_PCI_QUIRK(0x17aa, 0x397b, "Lenovo S205", CXT_FIXUP_STEREO_DMIC),
>> +	SND_PCI_QUIRK_VENDOR(0x17aa, "Thinkpad", CXT_FIXUP_THINKPAD_ACPI),
>>   	SND_PCI_QUIRK(0x1c06, 0x2011, "Lemote A1004", CXT_PINCFG_LEMOTE_A1004),
>>   	SND_PCI_QUIRK(0x1c06, 0x2012, "Lemote A1205", CXT_PINCFG_LEMOTE_A1205),
>>   	{}
>>
> Starting with this patch, my Lenovo Thinkpad X121e netbook (it's without
> any mute LEDs, BTW, there is only a power LED) considers the power
> button as hard reset. I have to exclude my machine from that ACPI fixup
> (this is on top of current Linus master):
It seems more like a firmware issue, in the acpi code, the "SSMS" is for 
mute led, and the "MMTS" is for micmute led, I don't know why your 
machine can pass "SSMS" or "MMTS" scanning even without mute LEDs.



> diff --git a/sound/pci/hda/thinkpad_helper.c b/sound/pci/hda/thinkpad_helper.c
> index 6ba0b55..7e1a179 100644
> --- a/sound/pci/hda/thinkpad_helper.c
> +++ b/sound/pci/hda/thinkpad_helper.c
> @@ -21,7 +21,8 @@ static acpi_status acpi_check_cb(acpi_handle handle, u32 lvl, void *context,
>   static bool is_thinkpad(struct hda_codec *codec)
>   {
>   	bool found = false;
> -	if (codec->subsystem_id >> 16 != 0x17aa)
> +	if (codec->subsystem_id >> 16 != 0x17aa ||
> +	    codec->subsystem_id == 0x17aa21ec)
>   		return false;
>   	if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb, &found, NULL)) && found)
>   		return true;
>
>
> Is that the way to address it? Then I can send a proper patch. Any hints
> regarding the "why" will be incorporated into its description.
>
> Thanks,
> Jan
>

Re: [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Jan Kiszka]

[-- Attachment #1: Type: text/plain, Size: 3621 bytes --]

On 2014-06-30 04:04, Hui Wang wrote:
> On 06/29/2014 07:33 PM, Jan Kiszka wrote:
>> On 2013-11-27 07:47, Hui Wang wrote:
>>> Most Thinkpad Edge series laptops use conexant codec, so far although
>>> the codecs have different minor Vendor Id and minor Subsystem Id,
>>> they all belong to the cxt5066 family, this change can make the
>>> mute/mic-mute LEDs support more generic among cxt_5066 family.
>>>
>>> This design refers to the similar solution for the realtek codec
>>> ALC269 family in the patch_realtek.c.
>>>
>>> Cc: Alex Hung <alex.hung@canonical.com>
>>> Cc: David Henningsson <david.henningsson@canonical.com>
>>> Signed-off-by: Hui Wang <hui.wang@canonical.com>
>>> ---
>>>   sound/pci/hda/patch_conexant.c | 23 +++++++++++++++++++++++
>>>   1 file changed, 23 insertions(+)
>>>
>>> diff --git a/sound/pci/hda/patch_conexant.c
>>> b/sound/pci/hda/patch_conexant.c
>>> index c205bb1..1f2717f 100644
>>> --- a/sound/pci/hda/patch_conexant.c
>>> +++ b/sound/pci/hda/patch_conexant.c
>>> @@ -3244,9 +3244,29 @@ enum {
>>>   #if IS_ENABLED(CONFIG_THINKPAD_ACPI)
>>>     #include <linux/thinkpad_acpi.h>
>>> +#include <acpi/acpi.h>
>>>     static int (*led_set_func)(int, bool);
>>>   +static acpi_status acpi_check_cb(acpi_handle handle, u32 lvl, void
>>> *context,
>>> +                 void **rv)
>>> +{
>>> +    bool *found = context;
>>> +    *found = true;
>>> +    return AE_OK;
>>> +}
>>> +
>>> +static bool is_thinkpad(struct hda_codec *codec)
>>> +{
>>> +    bool found = false;
>>> +    if (codec->subsystem_id >> 16 != 0x17aa)
>>> +        return false;
>>> +    if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb,
>>> &found, NULL)) && found)
>>> +        return true;
>>> +    found = false;
>>> +    return ACPI_SUCCESS(acpi_get_devices("IBM0068", acpi_check_cb,
>>> &found, NULL)) && found;
>>> +}
>>> +
>>>   static void update_tpacpi_mute_led(void *private_data, int enabled)
>>>   {
>>>       struct hda_codec *codec = private_data;
>>> @@ -3279,6 +3299,8 @@ static void cxt_fixup_thinkpad_acpi(struct
>>> hda_codec *codec,
>>>       bool removefunc = false;
>>>         if (action == HDA_FIXUP_ACT_PROBE) {
>>> +        if (!is_thinkpad(codec))
>>> +            return;
>>>           if (!led_set_func)
>>>               led_set_func = symbol_request(tpacpi_led_set);
>>>           if (!led_set_func) {
>>> @@ -3494,6 +3516,7 @@ static const struct snd_pci_quirk
>>> cxt5066_fixups[] = {
>>>       SND_PCI_QUIRK(0x17aa, 0x3975, "Lenovo U300s",
>>> CXT_FIXUP_STEREO_DMIC),
>>>       SND_PCI_QUIRK(0x17aa, 0x3977, "Lenovo IdeaPad U310",
>>> CXT_FIXUP_STEREO_DMIC),
>>>       SND_PCI_QUIRK(0x17aa, 0x397b, "Lenovo S205",
>>> CXT_FIXUP_STEREO_DMIC),
>>> +    SND_PCI_QUIRK_VENDOR(0x17aa, "Thinkpad", CXT_FIXUP_THINKPAD_ACPI),
>>>       SND_PCI_QUIRK(0x1c06, 0x2011, "Lemote A1004",
>>> CXT_PINCFG_LEMOTE_A1004),
>>>       SND_PCI_QUIRK(0x1c06, 0x2012, "Lemote A1205",
>>> CXT_PINCFG_LEMOTE_A1205),
>>>       {}
>>>
>> Starting with this patch, my Lenovo Thinkpad X121e netbook (it's without
>> any mute LEDs, BTW, there is only a power LED) considers the power
>> button as hard reset. I have to exclude my machine from that ACPI fixup
>> (this is on top of current Linus master):
> It seems more like a firmware issue, in the acpi code, the "SSMS" is for
> mute led, and the "MMTS" is for micmute led, I don't know why your
> machine can pass "SSMS" or "MMTS" scanning even without mute LEDs.
> 

Is there anything I can debug or any information I can collect from my
box to examine this?

Jan



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Re: [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Hui Wang]

On 06/30/2014 02:45 PM, Jan Kiszka wrote:
> On 2014-06-30 04:04, Hui Wang wrote:
>> On 06/29/2014 07:33 PM, Jan Kiszka wrote:
>>> On 2013-11-27 07:47, Hui Wang wrote:
>>>> Most Thinkpad Edge series laptops use conexant codec, so far although
>>>> the codecs have different minor Vendor Id and minor Subsystem Id,
>>>> they all belong to the cxt5066 family, this change can make the
>>>> mute/mic-mute LEDs support more generic among cxt_5066 family.
>>>>
>>>> This design refers to the similar solution for the realtek codec
>>>> ALC269 family in the patch_realtek.c.
>>>>
>>>> Cc: Alex Hung <alex.hung@canonical.com>
>>>> Cc: David Henningsson <david.henningsson@canonical.com>
>>>> Signed-off-by: Hui Wang <hui.wang@canonical.com>
>>>> ---
>>>>    sound/pci/hda/patch_conexant.c | 23 +++++++++++++++++++++++
>>>>    1 file changed, 23 insertions(+)
>>>>
>>>> diff --git a/sound/pci/hda/patch_conexant.c
>>>> b/sound/pci/hda/patch_conexant.c
>>>> index c205bb1..1f2717f 100644
>>>> --- a/sound/pci/hda/patch_conexant.c
>>>> +++ b/sound/pci/hda/patch_conexant.c
>>>> @@ -3244,9 +3244,29 @@ enum {
>>>>    #if IS_ENABLED(CONFIG_THINKPAD_ACPI)
>>>>      #include <linux/thinkpad_acpi.h>
>>>> +#include <acpi/acpi.h>
>>>>      static int (*led_set_func)(int, bool);
>>>>    +static acpi_status acpi_check_cb(acpi_handle handle, u32 lvl, void
>>>> *context,
>>>> +                 void **rv)
>>>> +{
>>>> +    bool *found = context;
>>>> +    *found = true;
>>>> +    return AE_OK;
>>>> +}
>>>> +
>>>> +static bool is_thinkpad(struct hda_codec *codec)
>>>> +{
>>>> +    bool found = false;
>>>> +    if (codec->subsystem_id >> 16 != 0x17aa)
>>>> +        return false;
>>>> +    if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb,
>>>> &found, NULL)) && found)
>>>> +        return true;
>>>> +    found = false;
>>>> +    return ACPI_SUCCESS(acpi_get_devices("IBM0068", acpi_check_cb,
>>>> &found, NULL)) && found;
>>>> +}
>>>> +
>>>>    static void update_tpacpi_mute_led(void *private_data, int enabled)
>>>>    {
>>>>        struct hda_codec *codec = private_data;
>>>> @@ -3279,6 +3299,8 @@ static void cxt_fixup_thinkpad_acpi(struct
>>>> hda_codec *codec,
>>>>        bool removefunc = false;
>>>>          if (action == HDA_FIXUP_ACT_PROBE) {
>>>> +        if (!is_thinkpad(codec))
>>>> +            return;
>>>>            if (!led_set_func)
>>>>                led_set_func = symbol_request(tpacpi_led_set);
>>>>            if (!led_set_func) {
>>>> @@ -3494,6 +3516,7 @@ static const struct snd_pci_quirk
>>>> cxt5066_fixups[] = {
>>>>        SND_PCI_QUIRK(0x17aa, 0x3975, "Lenovo U300s",
>>>> CXT_FIXUP_STEREO_DMIC),
>>>>        SND_PCI_QUIRK(0x17aa, 0x3977, "Lenovo IdeaPad U310",
>>>> CXT_FIXUP_STEREO_DMIC),
>>>>        SND_PCI_QUIRK(0x17aa, 0x397b, "Lenovo S205",
>>>> CXT_FIXUP_STEREO_DMIC),
>>>> +    SND_PCI_QUIRK_VENDOR(0x17aa, "Thinkpad", CXT_FIXUP_THINKPAD_ACPI),
>>>>        SND_PCI_QUIRK(0x1c06, 0x2011, "Lemote A1004",
>>>> CXT_PINCFG_LEMOTE_A1004),
>>>>        SND_PCI_QUIRK(0x1c06, 0x2012, "Lemote A1205",
>>>> CXT_PINCFG_LEMOTE_A1205),
>>>>        {}
>>>>
>>> Starting with this patch, my Lenovo Thinkpad X121e netbook (it's without
>>> any mute LEDs, BTW, there is only a power LED) considers the power
>>> button as hard reset. I have to exclude my machine from that ACPI fixup
>>> (this is on top of current Linus master):
>> It seems more like a firmware issue, in the acpi code, the "SSMS" is for
>> mute led, and the "MMTS" is for micmute led, I don't know why your
>> machine can pass "SSMS" or "MMTS" scanning even without mute LEDs.
>>
> Is there anything I can debug or any information I can collect from my
> box to examine this?
What is the linux distribution on your machine? And use showkey to catch 
the keycode of that button.

>
> Jan
>
>

Re: [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Jan Kiszka]

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On 2014-07-01 04:15, Hui Wang wrote:
> On 06/30/2014 02:45 PM, Jan Kiszka wrote:
>> On 2014-06-30 04:04, Hui Wang wrote:
>>> On 06/29/2014 07:33 PM, Jan Kiszka wrote:
>>>> On 2013-11-27 07:47, Hui Wang wrote:
>>>>> Most Thinkpad Edge series laptops use conexant codec, so far although
>>>>> the codecs have different minor Vendor Id and minor Subsystem Id,
>>>>> they all belong to the cxt5066 family, this change can make the
>>>>> mute/mic-mute LEDs support more generic among cxt_5066 family.
>>>>>
>>>>> This design refers to the similar solution for the realtek codec
>>>>> ALC269 family in the patch_realtek.c.
>>>>>
>>>>> Cc: Alex Hung <alex.hung@canonical.com>
>>>>> Cc: David Henningsson <david.henningsson@canonical.com>
>>>>> Signed-off-by: Hui Wang <hui.wang@canonical.com>
>>>>> ---
>>>>>    sound/pci/hda/patch_conexant.c | 23 +++++++++++++++++++++++
>>>>>    1 file changed, 23 insertions(+)
>>>>>
>>>>> diff --git a/sound/pci/hda/patch_conexant.c
>>>>> b/sound/pci/hda/patch_conexant.c
>>>>> index c205bb1..1f2717f 100644
>>>>> --- a/sound/pci/hda/patch_conexant.c
>>>>> +++ b/sound/pci/hda/patch_conexant.c
>>>>> @@ -3244,9 +3244,29 @@ enum {
>>>>>    #if IS_ENABLED(CONFIG_THINKPAD_ACPI)
>>>>>      #include <linux/thinkpad_acpi.h>
>>>>> +#include <acpi/acpi.h>
>>>>>      static int (*led_set_func)(int, bool);
>>>>>    +static acpi_status acpi_check_cb(acpi_handle handle, u32 lvl, void
>>>>> *context,
>>>>> +                 void **rv)
>>>>> +{
>>>>> +    bool *found = context;
>>>>> +    *found = true;
>>>>> +    return AE_OK;
>>>>> +}
>>>>> +
>>>>> +static bool is_thinkpad(struct hda_codec *codec)
>>>>> +{
>>>>> +    bool found = false;
>>>>> +    if (codec->subsystem_id >> 16 != 0x17aa)
>>>>> +        return false;
>>>>> +    if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb,
>>>>> &found, NULL)) && found)
>>>>> +        return true;
>>>>> +    found = false;
>>>>> +    return ACPI_SUCCESS(acpi_get_devices("IBM0068", acpi_check_cb,
>>>>> &found, NULL)) && found;
>>>>> +}
>>>>> +
>>>>>    static void update_tpacpi_mute_led(void *private_data, int enabled)
>>>>>    {
>>>>>        struct hda_codec *codec = private_data;
>>>>> @@ -3279,6 +3299,8 @@ static void cxt_fixup_thinkpad_acpi(struct
>>>>> hda_codec *codec,
>>>>>        bool removefunc = false;
>>>>>          if (action == HDA_FIXUP_ACT_PROBE) {
>>>>> +        if (!is_thinkpad(codec))
>>>>> +            return;
>>>>>            if (!led_set_func)
>>>>>                led_set_func = symbol_request(tpacpi_led_set);
>>>>>            if (!led_set_func) {
>>>>> @@ -3494,6 +3516,7 @@ static const struct snd_pci_quirk
>>>>> cxt5066_fixups[] = {
>>>>>        SND_PCI_QUIRK(0x17aa, 0x3975, "Lenovo U300s",
>>>>> CXT_FIXUP_STEREO_DMIC),
>>>>>        SND_PCI_QUIRK(0x17aa, 0x3977, "Lenovo IdeaPad U310",
>>>>> CXT_FIXUP_STEREO_DMIC),
>>>>>        SND_PCI_QUIRK(0x17aa, 0x397b, "Lenovo S205",
>>>>> CXT_FIXUP_STEREO_DMIC),
>>>>> +    SND_PCI_QUIRK_VENDOR(0x17aa, "Thinkpad",
>>>>> CXT_FIXUP_THINKPAD_ACPI),
>>>>>        SND_PCI_QUIRK(0x1c06, 0x2011, "Lemote A1004",
>>>>> CXT_PINCFG_LEMOTE_A1004),
>>>>>        SND_PCI_QUIRK(0x1c06, 0x2012, "Lemote A1205",
>>>>> CXT_PINCFG_LEMOTE_A1205),
>>>>>        {}
>>>>>
>>>> Starting with this patch, my Lenovo Thinkpad X121e netbook (it's
>>>> without
>>>> any mute LEDs, BTW, there is only a power LED) considers the power
>>>> button as hard reset. I have to exclude my machine from that ACPI fixup
>>>> (this is on top of current Linus master):
>>> It seems more like a firmware issue, in the acpi code, the "SSMS" is for
>>> mute led, and the "MMTS" is for micmute led, I don't know why your
>>> machine can pass "SSMS" or "MMTS" scanning even without mute LEDs.
>>>
>> Is there anything I can debug or any information I can collect from my
>> box to examine this?
> What is the linux distribution on your machine? And use showkey to catch
> the keycode of that button.

I'm running OpenSUSE 13.1. The reported keycode of the power button is 116.

Jan



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Re: [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Hui Wang]

On 07/01/2014 03:38 PM, Jan Kiszka wrote:
> On 2014-07-01 04:15, Hui Wang wrote:
>> On 06/30/2014 02:45 PM, Jan Kiszka wrote:
>>> On 2014-06-30 04:04, Hui Wang wrote:
>>>> On 06/29/2014 07:33 PM, Jan Kiszka wrote:
>>>>> On 2013-11-27 07:47, Hui Wang wrote:
>>>>>> Most Thinkpad Edge series laptops use conexant codec, so far although
<snip>
>>>>>>
>>> Is there anything I can debug or any information I can collect from my
>>> box to examine this?
>> What is the linux distribution on your machine? And use showkey to catch
>> the keycode of that button.
> I'm running OpenSUSE 13.1. The reported keycode of the power button is 116.
It seems the keycode is correct, it is power keycode rather the mute 
keycode.

Could you please do some debug, let us find which line of code is the 
root cause for this problem. for example:

after running the line, the problem shows up:

1.     if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb, 
&found, NULL)) && found) // in the sound/pci/hda/thinkpad_helper.c, 
is_thinkpad()

2.     return ACPI_SUCCESS(acpi_get_devices("IBM0068", acpi_check_cb, 
&found, NULL)) && found; // same as above

3.         if (led_set_func(TPACPI_LED_MUTE, false) >= 0) { //in the 
sound/pci/hda/thinkpad_helper.c, hda_fixup_thinkpad_acpi()

4. if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) { // same as above


>
> Jan
>
>

Re: [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Jan Kiszka]

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On 2014-07-01 11:26, Hui Wang wrote:
> On 07/01/2014 03:38 PM, Jan Kiszka wrote:
>> On 2014-07-01 04:15, Hui Wang wrote:
>>> On 06/30/2014 02:45 PM, Jan Kiszka wrote:
>>>> On 2014-06-30 04:04, Hui Wang wrote:
>>>>> On 06/29/2014 07:33 PM, Jan Kiszka wrote:
>>>>>> On 2013-11-27 07:47, Hui Wang wrote:
>>>>>>> Most Thinkpad Edge series laptops use conexant codec, so far
>>>>>>> although
> <snip>
>>>>>>>
>>>> Is there anything I can debug or any information I can collect from my
>>>> box to examine this?
>>> What is the linux distribution on your machine? And use showkey to catch
>>> the keycode of that button.
>> I'm running OpenSUSE 13.1. The reported keycode of the power button is
>> 116.
> It seems the keycode is correct, it is power keycode rather the mute
> keycode.
> 
> Could you please do some debug, let us find which line of code is the
> root cause for this problem. for example:
> 
> after running the line, the problem shows up:
> 
> 1.     if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb,
> &found, NULL)) && found) // in the sound/pci/hda/thinkpad_helper.c,
> is_thinkpad()

This evaluates to true

> 
> 2.     return ACPI_SUCCESS(acpi_get_devices("IBM0068", acpi_check_cb,
> &found, NULL)) && found; // same as above
> 
> 3.         if (led_set_func(TPACPI_LED_MUTE, false) >= 0) { //in the
> sound/pci/hda/thinkpad_helper.c, hda_fixup_thinkpad_acpi()

...and this

> 
> 4. if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) { // same as above
> 

...and this as well. spec->num_adc_nids is 1.

Jan



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Re: [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Hui Wang]

On 07/03/2014 03:04 PM, Jan Kiszka wrote:
> On 2014-07-01 11:26, Hui Wang wrote:
>> On 07/01/2014 03:38 PM, Jan Kiszka wrote:
>>> On 2014-07-01 04:15, Hui Wang wrote:
>>>> On 06/30/2014 02:45 PM, Jan Kiszka wrote:
>>>>> On 2014-06-30 04:04, Hui Wang wrote:
>>>>>> On 06/29/2014 07:33 PM, Jan Kiszka wrote:
>>>>>>> On 2013-11-27 07:47, Hui Wang wrote:
>>>>>>>> Most Thinkpad Edge series laptops use conexant codec, so far
>>>>>>>> although
>> <snip>
>>>>> Is there anything I can debug or any information I can collect from my
>>>>> box to examine this?
>>>> What is the linux distribution on your machine? And use showkey to catch
>>>> the keycode of that button.
>>> I'm running OpenSUSE 13.1. The reported keycode of the power button is
>>> 116.
>> It seems the keycode is correct, it is power keycode rather the mute
>> keycode.
>>
>> Could you please do some debug, let us find which line of code is the
>> root cause for this problem. for example:
>>
>> after running the line, the problem shows up:
>>
>> 1.     if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb,
>> &found, NULL)) && found) // in the sound/pci/hda/thinkpad_helper.c,
>> is_thinkpad()
> This evaluates to true
>
>> 2.     return ACPI_SUCCESS(acpi_get_devices("IBM0068", acpi_check_cb,
>> &found, NULL)) && found; // same as above
>>
>> 3.         if (led_set_func(TPACPI_LED_MUTE, false) >= 0) { //in the
>> sound/pci/hda/thinkpad_helper.c, hda_fixup_thinkpad_acpi()
> ...and this
>
>> 4. if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) { // same as above
>>
> ...and this as well. spec->num_adc_nids is 1.


If we change the code like below, does the power button can work well?

in the thinkpad_helper.c, hda_fixup_thinkpad_acpi()


         if (led_set_func(TPACPI_LED_MUTE, false) >= 0) {
             /*
             old_vmaster_hook = spec->vmaster_mute.hook;
             spec->vmaster_mute.hook = update_tpacpi_mute_led;
             removefunc = false;
            */
         }
         if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) {
           /*
             if (spec->num_adc_nids > 1)
                 codec_dbg(codec,
                       "Skipping micmute LED control due to several ADCs");
             else {
                 spec->cap_sync_hook = update_tpacpi_micmute_led;
                 removefunc = false;
             }
           */
         }


If power button can work well, please uncomment one section of the code 
to find which section code introduce this problem.

Regards,
Hui.
>
> Jan
>
>

Re: [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Jan Kiszka]

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On 2014-07-03 10:59, Hui Wang wrote:
> On 07/03/2014 03:04 PM, Jan Kiszka wrote:
>> On 2014-07-01 11:26, Hui Wang wrote:
>>> On 07/01/2014 03:38 PM, Jan Kiszka wrote:
>>>> On 2014-07-01 04:15, Hui Wang wrote:
>>>>> On 06/30/2014 02:45 PM, Jan Kiszka wrote:
>>>>>> On 2014-06-30 04:04, Hui Wang wrote:
>>>>>>> On 06/29/2014 07:33 PM, Jan Kiszka wrote:
>>>>>>>> On 2013-11-27 07:47, Hui Wang wrote:
>>>>>>>>> Most Thinkpad Edge series laptops use conexant codec, so far
>>>>>>>>> although
>>> <snip>
>>>>>> Is there anything I can debug or any information I can collect
>>>>>> from my
>>>>>> box to examine this?
>>>>> What is the linux distribution on your machine? And use showkey to
>>>>> catch
>>>>> the keycode of that button.
>>>> I'm running OpenSUSE 13.1. The reported keycode of the power button is
>>>> 116.
>>> It seems the keycode is correct, it is power keycode rather the mute
>>> keycode.
>>>
>>> Could you please do some debug, let us find which line of code is the
>>> root cause for this problem. for example:
>>>
>>> after running the line, the problem shows up:
>>>
>>> 1.     if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb,
>>> &found, NULL)) && found) // in the sound/pci/hda/thinkpad_helper.c,
>>> is_thinkpad()
>> This evaluates to true
>>
>>> 2.     return ACPI_SUCCESS(acpi_get_devices("IBM0068", acpi_check_cb,
>>> &found, NULL)) && found; // same as above
>>>
>>> 3.         if (led_set_func(TPACPI_LED_MUTE, false) >= 0) { //in the
>>> sound/pci/hda/thinkpad_helper.c, hda_fixup_thinkpad_acpi()
>> ...and this
>>
>>> 4. if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) { // same as above
>>>
>> ...and this as well. spec->num_adc_nids is 1.
> 
> 
> If we change the code like below, does the power button can work well?
> 
> in the thinkpad_helper.c, hda_fixup_thinkpad_acpi()
> 
> 
>         if (led_set_func(TPACPI_LED_MUTE, false) >= 0) {
>             /*
>             old_vmaster_hook = spec->vmaster_mute.hook;
>             spec->vmaster_mute.hook = update_tpacpi_mute_led;
>             removefunc = false;
>            */

Disabling only this block resolves the issue.

Jan



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Re: [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Hui Wang]

On 07/03/2014 05:05 PM, Jan Kiszka wrote:
> On 2014-07-03 10:59, Hui Wang wrote:
>> On 07/03/2014 03:04 PM, Jan Kiszka wrote:
>>> On 2014-07-01 11:26, Hui Wang wrote:
>>>> On 07/01/2014 03:38 PM, Jan Kiszka wrote:
>>>>> On 2014-07-01 04:15, Hui Wang wrote:
>>>>>> On 06/30/2014 02:45 PM, Jan Kiszka wrote:
>>>>>>> On 2014-06-30 04:04, Hui Wang wrote:
>>>>>>>> On 06/29/2014 07:33 PM, Jan Kiszka wrote:
>>>>>>>>> On 2013-11-27 07:47, Hui Wang wrote:
>>>>>>>>>> Most Thinkpad Edge series laptops use conexant codec, so far
>>>>>>>>>> although
>>>> <snip>
>>>>>>> Is there anything I can debug or any information I can collect
>>>>>>> from my
>>>>>>> box to examine this?
>>>>>> What is the linux distribution on your machine? And use showkey to
>>>>>> catch
>>>>>> the keycode of that button.
>>>>> I'm running OpenSUSE 13.1. The reported keycode of the power button is
>>>>> 116.
>>>> It seems the keycode is correct, it is power keycode rather the mute
>>>> keycode.
>>>>
>>>> Could you please do some debug, let us find which line of code is the
>>>> root cause for this problem. for example:
>>>>
>>>> after running the line, the problem shows up:
>>>>
>>>> 1.     if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb,
>>>> &found, NULL)) && found) // in the sound/pci/hda/thinkpad_helper.c,
>>>> is_thinkpad()
>>> This evaluates to true
>>>
>>>> 2.     return ACPI_SUCCESS(acpi_get_devices("IBM0068", acpi_check_cb,
>>>> &found, NULL)) && found; // same as above
>>>>
>>>> 3.         if (led_set_func(TPACPI_LED_MUTE, false) >= 0) { //in the
>>>> sound/pci/hda/thinkpad_helper.c, hda_fixup_thinkpad_acpi()
>>> ...and this
>>>
>>>> 4. if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) { // same as above
>>>>
>>> ...and this as well. spec->num_adc_nids is 1.
>>
>> If we change the code like below, does the power button can work well?
>>
>> in the thinkpad_helper.c, hda_fixup_thinkpad_acpi()
>>
>>
>>          if (led_set_func(TPACPI_LED_MUTE, false) >= 0) {
>>              /*
>>              old_vmaster_hook = spec->vmaster_mute.hook;
>>              spec->vmaster_mute.hook = update_tpacpi_mute_led;
>>              removefunc = false;
>>             */
> Disabling only this block resolves the issue.

So Below two lines make the power button change to the reset button.

drivers/platform/x86/thinkpad_acpi.c  mute_led_on_off():

acpi_get_handle(hkey_handle, "SSMS", &temp);
acpi_evalf(hkey_handle, &output, "SSMS", "dd", 1);


@alexhung,
Do you have any idea why this can affect the power button behavior?

>
> Jan
>
>

Re: [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Jan Kiszka]

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On 2014-07-03 11:24, Hui Wang wrote:
> On 07/03/2014 05:05 PM, Jan Kiszka wrote:
>> On 2014-07-03 10:59, Hui Wang wrote:
>>> On 07/03/2014 03:04 PM, Jan Kiszka wrote:
>>>> On 2014-07-01 11:26, Hui Wang wrote:
>>>>> On 07/01/2014 03:38 PM, Jan Kiszka wrote:
>>>>>> On 2014-07-01 04:15, Hui Wang wrote:
>>>>>>> On 06/30/2014 02:45 PM, Jan Kiszka wrote:
>>>>>>>> On 2014-06-30 04:04, Hui Wang wrote:
>>>>>>>>> On 06/29/2014 07:33 PM, Jan Kiszka wrote:
>>>>>>>>>> On 2013-11-27 07:47, Hui Wang wrote:
>>>>>>>>>>> Most Thinkpad Edge series laptops use conexant codec, so far
>>>>>>>>>>> although
>>>>> <snip>
>>>>>>>> Is there anything I can debug or any information I can collect
>>>>>>>> from my
>>>>>>>> box to examine this?
>>>>>>> What is the linux distribution on your machine? And use showkey to
>>>>>>> catch
>>>>>>> the keycode of that button.
>>>>>> I'm running OpenSUSE 13.1. The reported keycode of the power
>>>>>> button is
>>>>>> 116.
>>>>> It seems the keycode is correct, it is power keycode rather the mute
>>>>> keycode.
>>>>>
>>>>> Could you please do some debug, let us find which line of code is the
>>>>> root cause for this problem. for example:
>>>>>
>>>>> after running the line, the problem shows up:
>>>>>
>>>>> 1.     if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb,
>>>>> &found, NULL)) && found) // in the sound/pci/hda/thinkpad_helper.c,
>>>>> is_thinkpad()
>>>> This evaluates to true
>>>>
>>>>> 2.     return ACPI_SUCCESS(acpi_get_devices("IBM0068", acpi_check_cb,
>>>>> &found, NULL)) && found; // same as above
>>>>>
>>>>> 3.         if (led_set_func(TPACPI_LED_MUTE, false) >= 0) { //in the
>>>>> sound/pci/hda/thinkpad_helper.c, hda_fixup_thinkpad_acpi()
>>>> ...and this
>>>>
>>>>> 4. if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) { // same as
>>>>> above
>>>>>
>>>> ...and this as well. spec->num_adc_nids is 1.
>>>
>>> If we change the code like below, does the power button can work well?
>>>
>>> in the thinkpad_helper.c, hda_fixup_thinkpad_acpi()
>>>
>>>
>>>          if (led_set_func(TPACPI_LED_MUTE, false) >= 0) {
>>>              /*
>>>              old_vmaster_hook = spec->vmaster_mute.hook;
>>>              spec->vmaster_mute.hook = update_tpacpi_mute_led;
>>>              removefunc = false;
>>>             */
>> Disabling only this block resolves the issue.
> 
> So Below two lines make the power button change to the reset button.
> 
> drivers/platform/x86/thinkpad_acpi.c  mute_led_on_off():
> 
> acpi_get_handle(hkey_handle, "SSMS", &temp);
> acpi_evalf(hkey_handle, &output, "SSMS", "dd", 1);
> 
> 
> @alexhung,
> Do you have any idea why this can affect the power button behavior?
> 

I think we all lost track of this issue, but it unfortunately still
exists in the latest kernel, requiring custom builds here. How can we
proceed?

Thanks,
Jan



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Re: [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Raymond Yau]

2015-5-23 下午4:50 於 "Jan Kiszka" <jan.kiszka@web.de> 寫道：
>
> >>>>>>>>>>> Most Thinkpad Edge series laptops use conexant codec, so far
> >>>>>>>>>>> although
> >>>>> <snip>
> >>>>>>>> Is there anything I can debug or any information I can collect
> >>>>>>>> from my
> >>>>>>>> box to examine this?
> >>>>>>> What is the linux distribution on your machine? And use showkey to
> >>>>>>> catch
> >>>>>>> the keycode of that button.
> >>>>>> I'm running OpenSUSE 13.1. The reported keycode of the power
> >>>>>> button is
> >>>>>> 116.
> >>>>> It seems the keycode is correct, it is power keycode rather the mute
> >>>>> keycode.
> >>>>>
> >>>>> Could you please do some debug, let us find which line of code is
the
> >>>>> root cause for this problem. for example:
> >>>>>
> >>>>> after running the line, the problem shows up:
> >>>>>
> >>>>> 1.     if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb,
> >>>>> &found, NULL)) && found) // in the sound/pci/hda/thinkpad_helper.c,
> >>>>> is_thinkpad()
> >>>> This evaluates to true
> >>>>
> >>>>> 2.     return ACPI_SUCCESS(acpi_get_devices("IBM0068",
acpi_check_cb,
> >>>>> &found, NULL)) && found; // same as above
> >>>>>
> >>>>> 3.         if (led_set_func(TPACPI_LED_MUTE, false) >= 0) { //in the
> >>>>> sound/pci/hda/thinkpad_helper.c, hda_fixup_thinkpad_acpi()
> >>>> ...and this
> >>>>
> >>>>> 4. if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) { // same as
> >>>>> above
> >>>>>
> >>>> ...and this as well. spec->num_adc_nids is 1.
> >>>
> >>> If we change the code like below, does the power button can work well?
> >>>
> >>> in the thinkpad_helper.c, hda_fixup_thinkpad_acpi()
> >>>
> >>>
> >>>          if (led_set_func(TPACPI_LED_MUTE, false) >= 0) {
> >>>              /*
> >>>              old_vmaster_hook = spec->vmaster_mute.hook;
> >>>              spec->vmaster_mute.hook = update_tpacpi_mute_led;
> >>>              removefunc = false;
> >>>             */
> >> Disabling only this block resolves the issue.
> >
> > So Below two lines make the power button change to the reset button.
> >
> > drivers/platform/x86/thinkpad_acpi.c  mute_led_on_off():
> >
> > acpi_get_handle(hkey_handle, "SSMS", &temp);
> > acpi_evalf(hkey_handle, &output, "SSMS", "dd", 1);
> >
> >
> > @alexhung,
> > Do you have any idea why this can affect the power button behavior?
> >
>
> I think we all lost track of this issue, but it unfortunately still
> exists in the latest kernel, requiring custom builds here. How can we
> proceed?

http://mailman.alsa-project.org/pipermail/alsa-devel/2015-May/091561.html

If you cannot find "SSMS" in  your T520 ACPI dump, this mean mute LED
cannot be turn on/off similar to T510
_______________________________________________
Alsa-devel mailing list
Alsa-devel@alsa-project.org
http://mailman.alsa-project.org/mailman/listinfo/alsa-devel

Re: [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Jan Kiszka]

[-- Attachment #1.1.1: Type: text/plain, Size: 2933 bytes --]

On 2015-05-23 18:06, Raymond Yau wrote:
> 2015-5-23 下午4:50 於 "Jan Kiszka" <jan.kiszka@web.de> 寫道：
>>
>>>>>>>>>>>>> Most Thinkpad Edge series laptops use conexant codec, so far
>>>>>>>>>>>>> although
>>>>>>> <snip>
>>>>>>>>>> Is there anything I can debug or any information I can collect
>>>>>>>>>> from my
>>>>>>>>>> box to examine this?
>>>>>>>>> What is the linux distribution on your machine? And use showkey to
>>>>>>>>> catch
>>>>>>>>> the keycode of that button.
>>>>>>>> I'm running OpenSUSE 13.1. The reported keycode of the power
>>>>>>>> button is
>>>>>>>> 116.
>>>>>>> It seems the keycode is correct, it is power keycode rather the mute
>>>>>>> keycode.
>>>>>>>
>>>>>>> Could you please do some debug, let us find which line of code is
> the
>>>>>>> root cause for this problem. for example:
>>>>>>>
>>>>>>> after running the line, the problem shows up:
>>>>>>>
>>>>>>> 1.     if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb,
>>>>>>> &found, NULL)) && found) // in the sound/pci/hda/thinkpad_helper.c,
>>>>>>> is_thinkpad()
>>>>>> This evaluates to true
>>>>>>
>>>>>>> 2.     return ACPI_SUCCESS(acpi_get_devices("IBM0068",
> acpi_check_cb,
>>>>>>> &found, NULL)) && found; // same as above
>>>>>>>
>>>>>>> 3.         if (led_set_func(TPACPI_LED_MUTE, false) >= 0) { //in the
>>>>>>> sound/pci/hda/thinkpad_helper.c, hda_fixup_thinkpad_acpi()
>>>>>> ...and this
>>>>>>
>>>>>>> 4. if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) { // same as
>>>>>>> above
>>>>>>>
>>>>>> ...and this as well. spec->num_adc_nids is 1.
>>>>>
>>>>> If we change the code like below, does the power button can work well?
>>>>>
>>>>> in the thinkpad_helper.c, hda_fixup_thinkpad_acpi()
>>>>>
>>>>>
>>>>>          if (led_set_func(TPACPI_LED_MUTE, false) >= 0) {
>>>>>              /*
>>>>>              old_vmaster_hook = spec->vmaster_mute.hook;
>>>>>              spec->vmaster_mute.hook = update_tpacpi_mute_led;
>>>>>              removefunc = false;
>>>>>             */
>>>> Disabling only this block resolves the issue.
>>>
>>> So Below two lines make the power button change to the reset button.
>>>
>>> drivers/platform/x86/thinkpad_acpi.c  mute_led_on_off():
>>>
>>> acpi_get_handle(hkey_handle, "SSMS", &temp);
>>> acpi_evalf(hkey_handle, &output, "SSMS", "dd", 1);
>>>
>>>
>>> @alexhung,
>>> Do you have any idea why this can affect the power button behavior?
>>>
>>
>> I think we all lost track of this issue, but it unfortunately still
>> exists in the latest kernel, requiring custom builds here. How can we
>> proceed?
> 
> http://mailman.alsa-project.org/pipermail/alsa-devel/2015-May/091561.html
> 
> If you cannot find "SSMS" in  your T520 ACPI dump, this mean mute LED
> cannot be turn on/off similar to T510

There is an entry (see attached disassembly), but this device has at
least no physical LED to drive.

Jan


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Re: [alsa-devel] [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Jan Kiszka]

On 2015-05-23 18:22, Jan Kiszka wrote:
> On 2015-05-23 18:06, Raymond Yau wrote:
>> 2015-5-23 下午4:50 於 "Jan Kiszka" <jan.kiszka@web.de> 寫道：
>>>
>>>>>>>>>>>>>> Most Thinkpad Edge series laptops use conexant codec, so far
>>>>>>>>>>>>>> although
>>>>>>>> <snip>
>>>>>>>>>>> Is there anything I can debug or any information I can collect
>>>>>>>>>>> from my
>>>>>>>>>>> box to examine this?
>>>>>>>>>> What is the linux distribution on your machine? And use showkey to
>>>>>>>>>> catch
>>>>>>>>>> the keycode of that button.
>>>>>>>>> I'm running OpenSUSE 13.1. The reported keycode of the power
>>>>>>>>> button is
>>>>>>>>> 116.
>>>>>>>> It seems the keycode is correct, it is power keycode rather the mute
>>>>>>>> keycode.
>>>>>>>>
>>>>>>>> Could you please do some debug, let us find which line of code is
>> the
>>>>>>>> root cause for this problem. for example:
>>>>>>>>
>>>>>>>> after running the line, the problem shows up:
>>>>>>>>
>>>>>>>> 1.     if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb,
>>>>>>>> &found, NULL)) && found) // in the sound/pci/hda/thinkpad_helper.c,
>>>>>>>> is_thinkpad()
>>>>>>> This evaluates to true
>>>>>>>
>>>>>>>> 2.     return ACPI_SUCCESS(acpi_get_devices("IBM0068",
>> acpi_check_cb,
>>>>>>>> &found, NULL)) && found; // same as above
>>>>>>>>
>>>>>>>> 3.         if (led_set_func(TPACPI_LED_MUTE, false) >= 0) { //in the
>>>>>>>> sound/pci/hda/thinkpad_helper.c, hda_fixup_thinkpad_acpi()
>>>>>>> ...and this
>>>>>>>
>>>>>>>> 4. if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) { // same as
>>>>>>>> above
>>>>>>>>
>>>>>>> ...and this as well. spec->num_adc_nids is 1.
>>>>>>
>>>>>> If we change the code like below, does the power button can work well?
>>>>>>
>>>>>> in the thinkpad_helper.c, hda_fixup_thinkpad_acpi()
>>>>>>
>>>>>>
>>>>>>          if (led_set_func(TPACPI_LED_MUTE, false) >= 0) {
>>>>>>              /*
>>>>>>              old_vmaster_hook = spec->vmaster_mute.hook;
>>>>>>              spec->vmaster_mute.hook = update_tpacpi_mute_led;
>>>>>>              removefunc = false;
>>>>>>             */
>>>>> Disabling only this block resolves the issue.
>>>>
>>>> So Below two lines make the power button change to the reset button.
>>>>
>>>> drivers/platform/x86/thinkpad_acpi.c  mute_led_on_off():
>>>>
>>>> acpi_get_handle(hkey_handle, "SSMS", &temp);
>>>> acpi_evalf(hkey_handle, &output, "SSMS", "dd", 1);
>>>>
>>>>
>>>> @alexhung,
>>>> Do you have any idea why this can affect the power button behavior?
>>>>
>>>
>>> I think we all lost track of this issue, but it unfortunately still
>>> exists in the latest kernel, requiring custom builds here. How can we
>>> proceed?
>>
>> http://mailman.alsa-project.org/pipermail/alsa-devel/2015-May/091561.html
>>
>> If you cannot find "SSMS" in  your T520 ACPI dump, this mean mute LED
>> cannot be turn on/off similar to T510
> 
> There is an entry (see attached disassembly), but this device has at
> least no physical LED to drive.
> 
> Jan
> 

Ping...

Jan

Re: [alsa-devel] [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Hui Wang]

On 06/24/2015 01:37 PM, Jan Kiszka wrote:
> On 2015-05-23 18:22, Jan Kiszka wrote:
>> On 2015-05-23 18:06, Raymond Yau wrote:
>>> 2015-5-23 下午4:50 於 "Jan Kiszka" <jan.kiszka@web.de> 寫道：
>>>>>>>>>>>>>>> Most Thinkpad Edge series laptops use conexant codec, so far
>>>>>>>>>>>>>>> although
>>>>>>>>> <snip>
>>>>>>>>>>>> Is there anything I can debug or any information I can collect
>>>>>>>>>>>> from my
>>>>>>>>>>>> box to examine this?
>>>>>>>>>>> What is the linux distribution on your machine? And use showkey to
>>>>>>>>>>> catch
>>>>>>>>>>> the keycode of that button.
>>>>>>>>>> I'm running OpenSUSE 13.1. The reported keycode of the power
>>>>>>>>>> button is
>>>>>>>>>> 116.
>>>>>>>>> It seems the keycode is correct, it is power keycode rather the mute
>>>>>>>>> keycode.
>>>>>>>>>
>>>>>>>>> Could you please do some debug, let us find which line of code is
>>> the
>>>>>>>>> root cause for this problem. for example:
>>>>>>>>>
>>>>>>>>> after running the line, the problem shows up:
>>>>>>>>>
>>>>>>>>> 1.     if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb,
>>>>>>>>> &found, NULL)) && found) // in the sound/pci/hda/thinkpad_helper.c,
>>>>>>>>> is_thinkpad()
>>>>>>>> This evaluates to true
>>>>>>>>
>>>>>>>>> 2.     return ACPI_SUCCESS(acpi_get_devices("IBM0068",
>>> acpi_check_cb,
>>>>>>>>> &found, NULL)) && found; // same as above
>>>>>>>>>
>>>>>>>>> 3.         if (led_set_func(TPACPI_LED_MUTE, false) >= 0) { //in the
>>>>>>>>> sound/pci/hda/thinkpad_helper.c, hda_fixup_thinkpad_acpi()
>>>>>>>> ...and this
>>>>>>>>
>>>>>>>>> 4. if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) { // same as
>>>>>>>>> above
>>>>>>>>>
>>>>>>>> ...and this as well. spec->num_adc_nids is 1.
>>>>>>> If we change the code like below, does the power button can work well?
>>>>>>>
>>>>>>> in the thinkpad_helper.c, hda_fixup_thinkpad_acpi()
>>>>>>>
>>>>>>>
>>>>>>>           if (led_set_func(TPACPI_LED_MUTE, false) >= 0) {
>>>>>>>               /*
>>>>>>>               old_vmaster_hook = spec->vmaster_mute.hook;
>>>>>>>               spec->vmaster_mute.hook = update_tpacpi_mute_led;
>>>>>>>               removefunc = false;
>>>>>>>              */
>>>>>> Disabling only this block resolves the issue.
>>>>> So Below two lines make the power button change to the reset button.
>>>>>
>>>>> drivers/platform/x86/thinkpad_acpi.c  mute_led_on_off():
>>>>>
>>>>> acpi_get_handle(hkey_handle, "SSMS", &temp);
>>>>> acpi_evalf(hkey_handle, &output, "SSMS", "dd", 1);
>>>>>
>>>>>
>>>>> @alexhung,
>>>>> Do you have any idea why this can affect the power button behavior?
>>>>>
>>>> I think we all lost track of this issue, but it unfortunately still
>>>> exists in the latest kernel, requiring custom builds here. How can we
>>>> proceed?
>>> http://mailman.alsa-project.org/pipermail/alsa-devel/2015-May/091561.html
>>>
>>> If you cannot find "SSMS" in  your T520 ACPI dump, this mean mute LED
>>> cannot be turn on/off similar to T510
>> There is an entry (see attached disassembly), but this device has at
>> least no physical LED to drive.
Some hotkey leds are embedded on button.  Through the pictures I found 
on the internet (thinkpad t520), it looks like there is a led at the 
center of the mute button.


Jan

> Ping...
>
> Jan
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@alsa-project.org
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel

Re: [alsa-devel] [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Jan Kiszka]

[-- Attachment #1: Type: text/plain, Size: 3689 bytes --]

On 2015-06-24 10:46, Hui Wang wrote:
> On 06/24/2015 01:37 PM, Jan Kiszka wrote:
>> On 2015-05-23 18:22, Jan Kiszka wrote:
>>> On 2015-05-23 18:06, Raymond Yau wrote:
>>>> 2015-5-23 下午4:50 於 "Jan Kiszka" <jan.kiszka@web.de> 寫道：
>>>>>>>>>>>>>>>> Most Thinkpad Edge series laptops use conexant codec, so
>>>>>>>>>>>>>>>> far
>>>>>>>>>>>>>>>> although
>>>>>>>>>> <snip>
>>>>>>>>>>>>> Is there anything I can debug or any information I can collect
>>>>>>>>>>>>> from my
>>>>>>>>>>>>> box to examine this?
>>>>>>>>>>>> What is the linux distribution on your machine? And use
>>>>>>>>>>>> showkey to
>>>>>>>>>>>> catch
>>>>>>>>>>>> the keycode of that button.
>>>>>>>>>>> I'm running OpenSUSE 13.1. The reported keycode of the power
>>>>>>>>>>> button is
>>>>>>>>>>> 116.
>>>>>>>>>> It seems the keycode is correct, it is power keycode rather
>>>>>>>>>> the mute
>>>>>>>>>> keycode.
>>>>>>>>>>
>>>>>>>>>> Could you please do some debug, let us find which line of code is
>>>> the
>>>>>>>>>> root cause for this problem. for example:
>>>>>>>>>>
>>>>>>>>>> after running the line, the problem shows up:
>>>>>>>>>>
>>>>>>>>>> 1.     if (ACPI_SUCCESS(acpi_get_devices("LEN0068",
>>>>>>>>>> acpi_check_cb,
>>>>>>>>>> &found, NULL)) && found) // in the
>>>>>>>>>> sound/pci/hda/thinkpad_helper.c,
>>>>>>>>>> is_thinkpad()
>>>>>>>>> This evaluates to true
>>>>>>>>>
>>>>>>>>>> 2.     return ACPI_SUCCESS(acpi_get_devices("IBM0068",
>>>> acpi_check_cb,
>>>>>>>>>> &found, NULL)) && found; // same as above
>>>>>>>>>>
>>>>>>>>>> 3.         if (led_set_func(TPACPI_LED_MUTE, false) >= 0) {
>>>>>>>>>> //in the
>>>>>>>>>> sound/pci/hda/thinkpad_helper.c, hda_fixup_thinkpad_acpi()
>>>>>>>>> ...and this
>>>>>>>>>
>>>>>>>>>> 4. if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) { // same as
>>>>>>>>>> above
>>>>>>>>>>
>>>>>>>>> ...and this as well. spec->num_adc_nids is 1.
>>>>>>>> If we change the code like below, does the power button can work
>>>>>>>> well?
>>>>>>>>
>>>>>>>> in the thinkpad_helper.c, hda_fixup_thinkpad_acpi()
>>>>>>>>
>>>>>>>>
>>>>>>>>           if (led_set_func(TPACPI_LED_MUTE, false) >= 0) {
>>>>>>>>               /*
>>>>>>>>               old_vmaster_hook = spec->vmaster_mute.hook;
>>>>>>>>               spec->vmaster_mute.hook = update_tpacpi_mute_led;
>>>>>>>>               removefunc = false;
>>>>>>>>              */
>>>>>>> Disabling only this block resolves the issue.
>>>>>> So Below two lines make the power button change to the reset button.
>>>>>>
>>>>>> drivers/platform/x86/thinkpad_acpi.c  mute_led_on_off():
>>>>>>
>>>>>> acpi_get_handle(hkey_handle, "SSMS", &temp);
>>>>>> acpi_evalf(hkey_handle, &output, "SSMS", "dd", 1);
>>>>>>
>>>>>>
>>>>>> @alexhung,
>>>>>> Do you have any idea why this can affect the power button behavior?
>>>>>>
>>>>> I think we all lost track of this issue, but it unfortunately still
>>>>> exists in the latest kernel, requiring custom builds here. How can we
>>>>> proceed?
>>>> http://mailman.alsa-project.org/pipermail/alsa-devel/2015-May/091561.html
>>>>
>>>>
>>>> If you cannot find "SSMS" in  your T520 ACPI dump, this mean mute LED
>>>> cannot be turn on/off similar to T510
>>> There is an entry (see attached disassembly), but this device has at
>>> least no physical LED to drive.
> Some hotkey leds are embedded on button.  Through the pictures I found
> on the internet (thinkpad t520), it looks like there is a led at the
> center of the mute button.

Again, I'm on a X121e, and that has only a single physical LED for
signaling the power state. The mute button is behind key combination of
the keyboard.

Jan



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Re: [alsa-devel] [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Hui Wang]

On 06/25/2015 07:02 PM, Jan Kiszka wrote:
> On 2015-06-24 10:46, Hui Wang wrote:
>> On 06/24/2015 01:37 PM, Jan Kiszka wrote:
>>> On 2015-05-23 18:22, Jan Kiszka wrote:
>>>> On 2015-05-23 18:06, Raymond Yau wrote:
>>>>> 2015-5-23 下午4:50 於 "Jan Kiszka" <jan.kiszka@web.de> 寫道：
>>>>>>>>>>>>>>>>> Most Thinkpad Edge series laptops use conexant codec, so
>>>>>>>>>>>>>>>>> far
>>>>>>>>>>>>>>>>> although
>>>>>>>>>>> <snip>
>>>>>>>>>>>>>> Is there anything I can debug or any information I can collect
>>>>>>>>>>>>>> from my
>>>>>>>>>>>>>> box to examine this?
>>>>>>>>>>>>> What is the linux distribution on your machine? And use
>>>>>>>>>>>>> showkey to
>>>>>>>>>>>>> catch
>>>>>>>>>>>>> the keycode of that button.
>>>>>>>>>>>> I'm running OpenSUSE 13.1. The reported keycode of the power
>>>>>>>>>>>> button is
>>>>>>>>>>>> 116.
>>>>>>>>>>> It seems the keycode is correct, it is power keycode rather
>>>>>>>>>>> the mute
>>>>>>>>>>> keycode.
>>>>>>>>>>>
>>>>>>>>>>> Could you please do some debug, let us find which line of code is
>>>>> the
>>>>>>>>>>> root cause for this problem. for example:
>>>>>>>>>>>
>>>>>>>>>>> after running the line, the problem shows up:
>>>>>>>>>>>
>>>>>>>>>>> 1.     if (ACPI_SUCCESS(acpi_get_devices("LEN0068",
>>>>>>>>>>> acpi_check_cb,
>>>>>>>>>>> &found, NULL)) && found) // in the
>>>>>>>>>>> sound/pci/hda/thinkpad_helper.c,
>>>>>>>>>>> is_thinkpad()
>>>>>>>>>> This evaluates to true
>>>>>>>>>>
>>>>>>>>>>> 2.     return ACPI_SUCCESS(acpi_get_devices("IBM0068",
>>>>> acpi_check_cb,
>>>>>>>>>>> &found, NULL)) && found; // same as above
>>>>>>>>>>>
>>>>>>>>>>> 3.         if (led_set_func(TPACPI_LED_MUTE, false) >= 0) {
>>>>>>>>>>> //in the
>>>>>>>>>>> sound/pci/hda/thinkpad_helper.c, hda_fixup_thinkpad_acpi()
>>>>>>>>>> ...and this
>>>>>>>>>>
>>>>>>>>>>> 4. if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) { // same as
>>>>>>>>>>> above
>>>>>>>>>>>
>>>>>>>>>> ...and this as well. spec->num_adc_nids is 1.
>>>>>>>>> If we change the code like below, does the power button can work
>>>>>>>>> well?
>>>>>>>>>
>>>>>>>>> in the thinkpad_helper.c, hda_fixup_thinkpad_acpi()
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>            if (led_set_func(TPACPI_LED_MUTE, false) >= 0) {
>>>>>>>>>                /*
>>>>>>>>>                old_vmaster_hook = spec->vmaster_mute.hook;
>>>>>>>>>                spec->vmaster_mute.hook = update_tpacpi_mute_led;
>>>>>>>>>                removefunc = false;
>>>>>>>>>               */
>>>>>>>> Disabling only this block resolves the issue.
>>>>>>> So Below two lines make the power button change to the reset button.
>>>>>>>
>>>>>>> drivers/platform/x86/thinkpad_acpi.c  mute_led_on_off():
>>>>>>>
>>>>>>> acpi_get_handle(hkey_handle, "SSMS", &temp);
>>>>>>> acpi_evalf(hkey_handle, &output, "SSMS", "dd", 1);
>>>>>>>
>>>>>>>
>>>>>>> @alexhung,
>>>>>>> Do you have any idea why this can affect the power button behavior?
>>>>>>>
>>>>>> I think we all lost track of this issue, but it unfortunately still
>>>>>> exists in the latest kernel, requiring custom builds here. How can we
>>>>>> proceed?
>>>>> http://mailman.alsa-project.org/pipermail/alsa-devel/2015-May/091561.html
>>>>>
>>>>>
>>>>> If you cannot find "SSMS" in  your T520 ACPI dump, this mean mute LED
>>>>> cannot be turn on/off similar to T510
>>>> There is an entry (see attached disassembly), but this device has at
>>>> least no physical LED to drive.
>> Some hotkey leds are embedded on button.  Through the pictures I found
>> on the internet (thinkpad t520), it looks like there is a led at the
>> center of the mute button.
> Again, I'm on a X121e, and that has only a single physical LED for
> signaling the power state. The mute button is behind key combination of
> the keyboard.
>
> Jan
There is no reason to change a power button to a reset button after 
accessing the acpi device "SSMS", the "SSMS" is for the mute led instead 
of the power management.

I think it is better you login to the lenovo website and look for the 
latest BIOS image, then upgrade the BIOS on your machine to see if it 
can solve the problem or not.
>

Re: [alsa-devel] [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Jan Kiszka]

[-- Attachment #1: Type: text/plain, Size: 4795 bytes --]

On 2015-06-26 04:22, Hui Wang wrote:
> On 06/25/2015 07:02 PM, Jan Kiszka wrote:
>> On 2015-06-24 10:46, Hui Wang wrote:
>>> On 06/24/2015 01:37 PM, Jan Kiszka wrote:
>>>> On 2015-05-23 18:22, Jan Kiszka wrote:
>>>>> On 2015-05-23 18:06, Raymond Yau wrote:
>>>>>> 2015-5-23 下午4:50 於 "Jan Kiszka" <jan.kiszka@web.de> 寫道：
>>>>>>>>>>>>>>>>>> Most Thinkpad Edge series laptops use conexant codec, so
>>>>>>>>>>>>>>>>>> far
>>>>>>>>>>>>>>>>>> although
>>>>>>>>>>>> <snip>
>>>>>>>>>>>>>>> Is there anything I can debug or any information I can
>>>>>>>>>>>>>>> collect
>>>>>>>>>>>>>>> from my
>>>>>>>>>>>>>>> box to examine this?
>>>>>>>>>>>>>> What is the linux distribution on your machine? And use
>>>>>>>>>>>>>> showkey to
>>>>>>>>>>>>>> catch
>>>>>>>>>>>>>> the keycode of that button.
>>>>>>>>>>>>> I'm running OpenSUSE 13.1. The reported keycode of the power
>>>>>>>>>>>>> button is
>>>>>>>>>>>>> 116.
>>>>>>>>>>>> It seems the keycode is correct, it is power keycode rather
>>>>>>>>>>>> the mute
>>>>>>>>>>>> keycode.
>>>>>>>>>>>>
>>>>>>>>>>>> Could you please do some debug, let us find which line of
>>>>>>>>>>>> code is
>>>>>> the
>>>>>>>>>>>> root cause for this problem. for example:
>>>>>>>>>>>>
>>>>>>>>>>>> after running the line, the problem shows up:
>>>>>>>>>>>>
>>>>>>>>>>>> 1.     if (ACPI_SUCCESS(acpi_get_devices("LEN0068",
>>>>>>>>>>>> acpi_check_cb,
>>>>>>>>>>>> &found, NULL)) && found) // in the
>>>>>>>>>>>> sound/pci/hda/thinkpad_helper.c,
>>>>>>>>>>>> is_thinkpad()
>>>>>>>>>>> This evaluates to true
>>>>>>>>>>>
>>>>>>>>>>>> 2.     return ACPI_SUCCESS(acpi_get_devices("IBM0068",
>>>>>> acpi_check_cb,
>>>>>>>>>>>> &found, NULL)) && found; // same as above
>>>>>>>>>>>>
>>>>>>>>>>>> 3.         if (led_set_func(TPACPI_LED_MUTE, false) >= 0) {
>>>>>>>>>>>> //in the
>>>>>>>>>>>> sound/pci/hda/thinkpad_helper.c, hda_fixup_thinkpad_acpi()
>>>>>>>>>>> ...and this
>>>>>>>>>>>
>>>>>>>>>>>> 4. if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) { //
>>>>>>>>>>>> same as
>>>>>>>>>>>> above
>>>>>>>>>>>>
>>>>>>>>>>> ...and this as well. spec->num_adc_nids is 1.
>>>>>>>>>> If we change the code like below, does the power button can work
>>>>>>>>>> well?
>>>>>>>>>>
>>>>>>>>>> in the thinkpad_helper.c, hda_fixup_thinkpad_acpi()
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>            if (led_set_func(TPACPI_LED_MUTE, false) >= 0) {
>>>>>>>>>>                /*
>>>>>>>>>>                old_vmaster_hook = spec->vmaster_mute.hook;
>>>>>>>>>>                spec->vmaster_mute.hook = update_tpacpi_mute_led;
>>>>>>>>>>                removefunc = false;
>>>>>>>>>>               */
>>>>>>>>> Disabling only this block resolves the issue.
>>>>>>>> So Below two lines make the power button change to the reset
>>>>>>>> button.
>>>>>>>>
>>>>>>>> drivers/platform/x86/thinkpad_acpi.c  mute_led_on_off():
>>>>>>>>
>>>>>>>> acpi_get_handle(hkey_handle, "SSMS", &temp);
>>>>>>>> acpi_evalf(hkey_handle, &output, "SSMS", "dd", 1);
>>>>>>>>
>>>>>>>>
>>>>>>>> @alexhung,
>>>>>>>> Do you have any idea why this can affect the power button behavior?
>>>>>>>>
>>>>>>> I think we all lost track of this issue, but it unfortunately still
>>>>>>> exists in the latest kernel, requiring custom builds here. How
>>>>>>> can we
>>>>>>> proceed?
>>>>>> http://mailman.alsa-project.org/pipermail/alsa-devel/2015-May/091561.html
>>>>>>
>>>>>>
>>>>>>
>>>>>> If you cannot find "SSMS" in  your T520 ACPI dump, this mean mute LED
>>>>>> cannot be turn on/off similar to T510
>>>>> There is an entry (see attached disassembly), but this device has at
>>>>> least no physical LED to drive.
>>> Some hotkey leds are embedded on button.  Through the pictures I found
>>> on the internet (thinkpad t520), it looks like there is a led at the
>>> center of the mute button.
>> Again, I'm on a X121e, and that has only a single physical LED for
>> signaling the power state. The mute button is behind key combination of
>> the keyboard.
>>
>> Jan
> There is no reason to change a power button to a reset button after
> accessing the acpi device "SSMS", the "SSMS" is for the mute led instead
> of the power management.
> 
> I think it is better you login to the lenovo website and look for the
> latest BIOS image, then upgrade the BIOS on your machine to see if it
> can solve the problem or not.

There is no more update since 2013, and I'm using the latest one. The
real bug is likely in the BIOS (it also has some other oddities), but
the trigger was this patch.

I suggested to have a quirk installed for my model - it cannot benefit
from this change anyway. Now I'm waiting for feedback on how to address
this best *in Linux* (because this is what we have under control).

Thanks,
Jan


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Re: [alsa-devel] [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Henrique de Moraes Holschuh]

On Fri, 26 Jun 2015, Hui Wang wrote:
> >Again, I'm on a X121e, and that has only a single physical LED for
> >signaling the power state. The mute button is behind key combination of
> >the keyboard.
> >
> >Jan
> There is no reason to change a power button to a reset button after
> accessing the acpi device "SSMS", the "SSMS" is for the mute led instead of
> the power management.
> 
> I think it is better you login to the lenovo website and look for the latest
> BIOS image, then upgrade the BIOS on your machine to see if it can solve the
> problem or not.

Hmm, I think I am missing something here.

Please explain _in detail_ what you mean with "changing a power button to a
reset button by acessing the SSMS ACPI method in a X121e".

Are we trigering a bug somewhere that crashes the x121e and causes it to
reboot?

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh

Re: [alsa-devel] [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Jan Kiszka]

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On 2015-06-27 00:49, Henrique de Moraes Holschuh wrote:
> On Fri, 26 Jun 2015, Hui Wang wrote:
>>> Again, I'm on a X121e, and that has only a single physical LED for
>>> signaling the power state. The mute button is behind key combination of
>>> the keyboard.
>>>
>>> Jan
>> There is no reason to change a power button to a reset button after
>> accessing the acpi device "SSMS", the "SSMS" is for the mute led instead of
>> the power management.
>>
>> I think it is better you login to the lenovo website and look for the latest
>> BIOS image, then upgrade the BIOS on your machine to see if it can solve the
>> problem or not.
> 
> Hmm, I think I am missing something here.
> 
> Please explain _in detail_ what you mean with "changing a power button to a
> reset button by acessing the SSMS ACPI method in a X121e".
> 
> Are we trigering a bug somewhere that crashes the x121e and causes it to
> reboot?

Well, there aren't much details to describe in this case: When this
patch is applied and I press the power button, the device performs a
hard reset. It doesn't reveal if the kernel crashes catastrophically,
causing a triple fault or so, or if the firmware decides to reset the
platform. Reverting the patch or preventing its effect via a quirk
filter like I posted [1] makes the issue go away.

Jan

[1]
http://mailman.alsa-project.org/pipermail/alsa-devel/2014-June/078284.html


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Re: [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Henrique de Moraes Holschuh]

On Sat, 27 Jun 2015, Jan Kiszka wrote:
> > Please explain _in detail_ what you mean with "changing a power button to a
> > reset button by acessing the SSMS ACPI method in a X121e".
> > 
> > Are we trigering a bug somewhere that crashes the x121e and causes it to
> > reboot?
> 
> Well, there aren't much details to describe in this case: When this
> patch is applied and I press the power button, the device performs a
> hard reset. It doesn't reveal if the kernel crashes catastrophically,
> causing a triple fault or so, or if the firmware decides to reset the
> platform. Reverting the patch or preventing its effect via a quirk
> filter like I posted [1] makes the issue go away.

Ok, so we crashing the firmware, and on a box that is not likely to get
further updates.  Well, this is a pretty clear case: blacklist.

Since calling SSMS in the X121e is unsafe, it needs to be blacklisted in
thinkpad-acpi.  I will need dmidecode output for that (please XXX-out UUIDs
and serial numbers in the dmidecode output before you send it to me, but do
keep model numbers intact).

We can also have a blacklist in ALSA to avoid the whole symbol_request() for
something that will have to fail, of course.  I leave that for the ALSA
maintainers to decide.

That said, you blacklisted in ALSA by full codec->subsystem_id.  Which
thinkpads have the 0x17aa21ec subsystem ID on the codec?  Just the x121e?

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh

Re: [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Takashi Iwai]

At Sat, 27 Jun 2015 12:50:44 -0300,
Henrique de Moraes Holschuh wrote:
> 
> On Sat, 27 Jun 2015, Jan Kiszka wrote:
> > > Please explain _in detail_ what you mean with "changing a power button to a
> > > reset button by acessing the SSMS ACPI method in a X121e".
> > > 
> > > Are we trigering a bug somewhere that crashes the x121e and causes it to
> > > reboot?
> > 
> > Well, there aren't much details to describe in this case: When this
> > patch is applied and I press the power button, the device performs a
> > hard reset. It doesn't reveal if the kernel crashes catastrophically,
> > causing a triple fault or so, or if the firmware decides to reset the
> > platform. Reverting the patch or preventing its effect via a quirk
> > filter like I posted [1] makes the issue go away.
> 
> Ok, so we crashing the firmware, and on a box that is not likely to get
> further updates.  Well, this is a pretty clear case: blacklist.
> 
> Since calling SSMS in the X121e is unsafe, it needs to be blacklisted in
> thinkpad-acpi.  I will need dmidecode output for that (please XXX-out UUIDs
> and serial numbers in the dmidecode output before you send it to me, but do
> keep model numbers intact).
> 
> We can also have a blacklist in ALSA to avoid the whole symbol_request() for
> something that will have to fail, of course.  I leave that for the ALSA
> maintainers to decide.

IMO, it's simpler to just leave the decision in thinkpad_acpi.

> That said, you blacklisted in ALSA by full codec->subsystem_id.  Which
> thinkpads have the 0x17aa21ec subsystem ID on the codec?  Just the x121e?

It's not guaranteed, but Lenovo doesn't share the same PCI SSID for
multiple models, AFAIK.


thanks,

Takashi

Re: [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Raymond Yau]

> >>>>>>>>>>> Most Thinkpad Edge series laptops use conexant codec, so far
> >>>>>>>>>>> although
> >>>>> <snip>
> >>>>>>>> Is there anything I can debug or any information I can collect
> >>>>>>>> from my
> >>>>>>>> box to examine this?
> >>>>>>> What is the linux distribution on your machine? And use showkey to
> >>>>>>> catch
> >>>>>>> the keycode of that button.
> >>>>>> I'm running OpenSUSE 13.1. The reported keycode of the power
> >>>>>> button is
> >>>>>> 116.
> >>>>> It seems the keycode is correct, it is power keycode rather the mute
> >>>>> keycode.
> >>>>>
> >>>>> Could you please do some debug, let us find which line of code is
the
> >>>>> root cause for this problem. for example:
> >>>>>
> >>>>> after running the line, the problem shows up:
> >>>>>
> >>>>> 1.     if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb,
> >>>>> &found, NULL)) && found) // in the sound/pci/hda/thinkpad_helper.c,
> >>>>> is_thinkpad()
> >>>> This evaluates to true
> >>>>
> >>>>> 2.     return ACPI_SUCCESS(acpi_get_devices("IBM0068",
acpi_check_cb,
> >>>>> &found, NULL)) && found; // same as above
> >>>>>
> >>>>> 3.         if (led_set_func(TPACPI_LED_MUTE, false) >= 0) { //in the
> >>>>> sound/pci/hda/thinkpad_helper.c, hda_fixup_thinkpad_acpi()
> >>>> ...and this
> >>>>
> >>>>> 4. if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) { // same as
> >>>>> above
> >>>>>
> >>>> ...and this as well. spec->num_adc_nids is 1.
> >>>
> >>> If we change the code like below, does the power button can work well?
> >>>
> >>> in the thinkpad_helper.c, hda_fixup_thinkpad_acpi()
> >>>
> >>>
> >>>          if (led_set_func(TPACPI_LED_MUTE, false) >= 0) {
> >>>              /*
> >>>              old_vmaster_hook = spec->vmaster_mute.hook;
> >>>              spec->vmaster_mute.hook = update_tpacpi_mute_led;
> >>>              removefunc = false;
> >>>             */
> >> Disabling only this block resolves the issue.
> >
> > So Below two lines make the power button change to the reset button.
> >
> > drivers/platform/x86/thinkpad_acpi.c  mute_led_on_off():
> >
> > acpi_get_handle(hkey_handle, "SSMS", &temp);
> > acpi_evalf(hkey_handle, &output, "SSMS", "dd", 1);
> >
> >

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/platform/x86/thinkpad_acpi.c?id=9a417ec0c9d1f7af5394333411fc4d98adb8761b

It seem that software mute also depend on HAUM and SAUM ACPI interface

Seem regression of the above patch is SSMS is not supported

https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1450947

Which models of thinkpad are tested by the author ?

Re: [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Hui Wang]

On 06/27/2015 11:03 AM, Raymond Yau wrote:
>>>>>>>>>>>>> Most Thinkpad Edge series laptops use conexant codec, so far
>>>>>>>>>>>>> although
>>>>>>> <snip>
>>>>>>>>>> Is there anything I can debug or any information I can collect
>>>>>>>>>> from my
>>>>>>>>>> box to examine this?
>>>>>>>>> What is the linux distribution on your machine? And use showkey to
>>>>>>>>> catch
>>>>>>>>> the keycode of that button.
>>>>>>>> I'm running OpenSUSE 13.1. The reported keycode of the power
>>>>>>>> button is
>>>>>>>> 116.
>>>>>>> It seems the keycode is correct, it is power keycode rather the mute
>>>>>>> keycode.
>>>>>>>
>>>>>>> Could you please do some debug, let us find which line of code is
> the
>>>>>>> root cause for this problem. for example:
>>>>>>>
>>>>>>> after running the line, the problem shows up:
>>>>>>>
>>>>>>> 1.     if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb,
>>>>>>> &found, NULL)) && found) // in the sound/pci/hda/thinkpad_helper.c,
>>>>>>> is_thinkpad()
>>>>>> This evaluates to true
>>>>>>
>>>>>>> 2.     return ACPI_SUCCESS(acpi_get_devices("IBM0068",
> acpi_check_cb,
>>>>>>> &found, NULL)) && found; // same as above
>>>>>>>
>>>>>>> 3.         if (led_set_func(TPACPI_LED_MUTE, false) >= 0) { //in the
>>>>>>> sound/pci/hda/thinkpad_helper.c, hda_fixup_thinkpad_acpi()
>>>>>> ...and this
>>>>>>
>>>>>>> 4. if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) { // same as
>>>>>>> above
>>>>>>>
>>>>>> ...and this as well. spec->num_adc_nids is 1.
>>>>> If we change the code like below, does the power button can work well?
>>>>>
>>>>> in the thinkpad_helper.c, hda_fixup_thinkpad_acpi()
>>>>>
>>>>>
>>>>>           if (led_set_func(TPACPI_LED_MUTE, false) >= 0) {
>>>>>               /*
>>>>>               old_vmaster_hook = spec->vmaster_mute.hook;
>>>>>               spec->vmaster_mute.hook = update_tpacpi_mute_led;
>>>>>               removefunc = false;
>>>>>              */
>>>> Disabling only this block resolves the issue.
>>> So Below two lines make the power button change to the reset button.
>>>
>>> drivers/platform/x86/thinkpad_acpi.c  mute_led_on_off():
>>>
>>> acpi_get_handle(hkey_handle, "SSMS", &temp);
>>> acpi_evalf(hkey_handle, &output, "SSMS", "dd", 1);
>>>
>>>
> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/platform/x86/thinkpad_acpi.c?id=9a417ec0c9d1f7af5394333411fc4d98adb8761b
>
> It seem that software mute also depend on HAUM and SAUM ACPI interface
>
> Seem regression of the above patch is SSMS is not supported
>
> https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1450947
>
> Which models of thinkpad are tested by the author ?
A lot, we tested this patch on all Lenovo machines with mute led we 
have. I need to check the models name and provide them at a later time.

> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@alsa-project.org
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
>

Re: [alsa-devel] [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

[Hui Wang]

On 06/29/2015 08:49 AM, Hui Wang wrote:
> On 06/27/2015 11:03 AM, Raymond Yau wrote:
>>>>>>>>>>>>>> Most Thinkpad Edge series laptops use conexant codec, so far
>>>>>>>>>>>>>> although
>>>>>>>> <snip>
>>>>>>>>>>> Is there anything I can debug or any information I can collect
>>>>>>>>>>> from my
>>>>>>>>>>> box to examine this?
>>>>>>>>>> What is the linux distribution on your machine? And use 
>>>>>>>>>> showkey to
>>>>>>>>>> catch
>>>>>>>>>> the keycode of that button.
>>>>>>>>> I'm running OpenSUSE 13.1. The reported keycode of the power
>>>>>>>>> button is
>>>>>>>>> 116.
>>>>>>>> It seems the keycode is correct, it is power keycode rather the 
>>>>>>>> mute
>>>>>>>> keycode.
>>>>>>>>
>>>>>>>> Could you please do some debug, let us find which line of code is
>> the
>>>>>>>> root cause for this problem. for example:
>>>>>>>>
>>>>>>>> after running the line, the problem shows up:
>>>>>>>>
>>>>>>>> 1.     if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb,
>>>>>>>> &found, NULL)) && found) // in the 
>>>>>>>> sound/pci/hda/thinkpad_helper.c,
>>>>>>>> is_thinkpad()
>>>>>>> This evaluates to true
>>>>>>>
>>>>>>>> 2.     return ACPI_SUCCESS(acpi_get_devices("IBM0068",
>> acpi_check_cb,
>>>>>>>> &found, NULL)) && found; // same as above
>>>>>>>>
>>>>>>>> 3.         if (led_set_func(TPACPI_LED_MUTE, false) >= 0) { 
>>>>>>>> //in the
>>>>>>>> sound/pci/hda/thinkpad_helper.c, hda_fixup_thinkpad_acpi()
>>>>>>> ...and this
>>>>>>>
>>>>>>>> 4. if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) { // same as
>>>>>>>> above
>>>>>>>>
>>>>>>> ...and this as well. spec->num_adc_nids is 1.
>>>>>> If we change the code like below, does the power button can work 
>>>>>> well?
>>>>>>
>>>>>> in the thinkpad_helper.c, hda_fixup_thinkpad_acpi()
>>>>>>
>>>>>>
>>>>>>           if (led_set_func(TPACPI_LED_MUTE, false) >= 0) {
>>>>>>               /*
>>>>>>               old_vmaster_hook = spec->vmaster_mute.hook;
>>>>>>               spec->vmaster_mute.hook = update_tpacpi_mute_led;
>>>>>>               removefunc = false;
>>>>>>              */
>>>>> Disabling only this block resolves the issue.
>>>> So Below two lines make the power button change to the reset button.
>>>>
>>>> drivers/platform/x86/thinkpad_acpi.c  mute_led_on_off():
>>>>
>>>> acpi_get_handle(hkey_handle, "SSMS", &temp);
>>>> acpi_evalf(hkey_handle, &output, "SSMS", "dd", 1);
>>>>
>>>>
>> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/platform/x86/thinkpad_acpi.c?id=9a417ec0c9d1f7af5394333411fc4d98adb8761b 
>>
>>
>> It seem that software mute also depend on HAUM and SAUM ACPI interface
>>
>> Seem regression of the above patch is SSMS is not supported
>>
>> https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1450947
>>
>> Which models of thinkpad are tested by the author ?
> A lot, we tested this patch on all Lenovo machines with mute led we 
> have. I need to check the models name and provide them at a later time.

What I can remeber now are x230, x240, x250, L560 and x1
>
>> _______________________________________________
>> Alsa-devel mailing list
>> Alsa-devel@alsa-project.org
>> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
>>
>