From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wg0-x22b.google.com (mail-wg0-x22b.google.com [IPv6:2a00:1450:400c:c00::22b]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 8CFBA1A06C7 for ; Fri, 30 May 2014 16:04:14 +1000 (EST) Received: by mail-wg0-f43.google.com with SMTP id l18so1409861wgh.26 for ; Thu, 29 May 2014 23:04:09 -0700 (PDT) Date: Fri, 30 May 2014 14:03:53 +0800 From: eshe168 To: timur Subject: P1022 audio driver help! Mime-Version: 1.0 Message-ID: <2014053014034907812079@gmail.com> Content-Type: multipart/alternative; boundary="----=_001_NextPart276325370688_=----" Cc: linuxppc-dev , zhphsearch Reply-To: eshe168 List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This is a multi-part message in MIME format. ------=_001_NextPart276325370688_=---- Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: base64 QHRpbXVyDQoNCmhpLA0KDQpBdWRpbyBjYXJkICh3bTg3NzYpIGNhbm5vdCB3b3JrIGluIGZ1bGwg ZHVwbGV4LCBDUFUgaXMgRlNMIFAxMDIyLg0KVGhlIFBDQiBkZXNpZ24gYWJvdXQgYXVkaW8gY2Fy ZCByZWZlcmVuY2UgRlNMIFAxMDIyIGRldmVsb3BtZW50IGJvYXJkLCBhbmQgcGFseWluZyBvciBy ZWNvcmRpbmcgaXMgT0sgc2VwYXJhdGVseS4NCg0KTXkgcXVlc3Rpb24gaXMgd2hldGhlciBQMTAy MiBhdWRpbyBkcml2ZXIgY2Fubm90IHN1cHBvcnQgZnVsbCBkdXBsZXg/DQoNClRoZSBmb2xsb3dp bmcgaXMgbXkgdGVzdCBtZXRob2QuDQp0ZXN0IHNjcmlwdDoNCiMhL2Jpbi9zaA0KZWNobyAic3Rh cnQgcGxhcnlpbmciICANCmFwbGF5IC9ub3ItZGlzay9hdWRpb3Nydi9TdWNjZXNzLndhdiAmIA0K c2xlZXAgMQ0KZWNobyAic3RhcnQgcmVjb3JkaW5nIiANCmFyZWNvcmQgLWQgNSAtdCB3YXYgLUQg InBsdWc6U0xBVkU9J2h3OjAsMSciIC1yIDE5ODg2IHRlc3Qud2F2DQoNCndoZW4gc3RhcnQgInJl Y29yZCIsICJhcGxheSIganVzdCBzdXNwZW5kLCBhbmQgSSBjYW5ub3QgbGlzdGVuIHZvaWNlLiB3 aGVuIHJlY29yZCBpcyBvdmVyLCBJIGZvdW5kIGFwbGF5IHN0aWxsIHN1c3BlbmQuDQphY2NvcmRp bmcgdG8gInBzIC1hdXgiOg0Kcm9vdCAxNDk5IDAuMiAwLjEgNDAxMiAxNTAwIHB0cy8wIFMgMDg6 MjUgMDowMCBhcGxheSAvbm9yLWRpc2svYXVkaW9zcnYvU3VjY2Vzcy53YXYNCg0KQnV0LCBJIHJ1 biB0aGlzIHNjcmlwdCBpbiBhIFBDIGxpbnV4LCBJIGNhbiBsaXN0ZW4gdGhlIHZvaWNlLCB0aGUg YXVkaW8gY2FyZCBjYW4gcmVjb3JkIG15IHZvaWNlIHNpbXVsdGFuZW91cy4NCg0KTG9va2luZyBm b3J3YXJkIHlvdXIgcmVzcG9uc2UhDQoNClRoYW5rcyEgDQoNCg0KDQoNCkIuUi4NCllYUw== ------=_001_NextPart276325370688_=---- Content-Type: text/html; charset="gb2312" Content-Transfer-Encoding: quoted-printable
@timur
 
hi,
 
Audio card (wm8776) cannot work in full duplex, CPU is FSL=20 P1022.
The PCB design about audio card reference FSL P1022 development board= , and=20 palying or recording is OK separately.
 
My question is whether P1022 audio driver cannot support full duplex?=
 
The following is my test method.
test script:

#!/bin/sh

echo=20 "start plarying"  
aplay /nor-disk/audiosrv/Success.wa= v=20 &
sleep 1

echo=20 "start recording" 
arecord -d 5 -t wav -D "plug:SLAVE=3D'hw:0,1'" = -r 19886=20 test.wav

 
when start "record", "aplay" just suspend, and I cannot listen voice.= when=20 record is over, I found aplay still suspend.
according to "ps -aux":

root=20 1499 0.2 0.1 4012 1500 pts/0 S 08:25 0:00 aplay=20 /nor-disk/audiosrv/Success.wav

 
But, I run this script in a PC linux, I can listen the voice, th= e=20 audio card can record my voice simultaneous.
 
Looking forward your response!
 
Thanks! 
 
B.R= .
YXS=
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