From owner-freebsd-bugs Sun Nov 24 8:30: 6 2002 Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id EF16137B401 for ; Sun, 24 Nov 2002 08:30:02 -0800 (PST) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4F07243E9C for ; Sun, 24 Nov 2002 08:30:02 -0800 (PST) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.12.6/8.12.6) with ESMTP id gAOGU2x3028021 for ; Sun, 24 Nov 2002 08:30:02 -0800 (PST) (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.12.6/8.12.6/Submit) id gAOGU2mB028020; Sun, 24 Nov 2002 08:30:02 -0800 (PST) Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1590537B401 for ; Sun, 24 Nov 2002 08:22:00 -0800 (PST) Received: from ums509.nifty.ne.jp (ums509.nifty.ne.jp [202.248.20.208]) by mx1.FreeBSD.org (Postfix) with ESMTP id E9E1043E6E for ; Sun, 24 Nov 2002 08:21:58 -0800 (PST) (envelope-from CQG00620@nifty.ne.jp) Received: from nifty.ne.jp (mcda014n054.ppp.infoweb.ne.jp [61.124.80.181]) by ums509.nifty.ne.jp (8.9.3+3.2W/3.7W-991025) with ESMTP id BAA13362 for ; Mon, 25 Nov 2002 01:21:48 +0900 (JST) Message-Id: <200211241621.BAA13362@ums509.nifty.ne.jp> Date: Mon, 25 Nov 2002 01:12:08 +0900 From: Watanabe Kazuhiro To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/45679: Cannot record except 8bit-mono with CS4231A & newpcm (half-duplex mode) Sender: owner-freebsd-bugs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org >Number: 45679 >Category: kern >Synopsis: Cannot record except 8bit-mono with CS4231A & newpcm (half-duplex mode) >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Nov 24 08:30:01 PST 2002 >Closed-Date: >Last-Modified: >Originator: Watanabe Kazuhiro >Release: FreeBSD 4.5-RELEASE i386 >Organization: >Environment: System: FreeBSD aries.zodiac.org 4.5-RELEASE FreeBSD 4.5-RELEASE #13: Sun Nov 24 15:30:52 JST 2002 nabe@aries.zodiac.org:/usr/src/sys/compile/LEFTEYE i386 dmesg: pcm0: at port 0xf40-0xf47 irq 10 drq 1 flags 0x1a100 on isa0 drq/irq conf 1a I'm tested on NEC PC-9821Xa9 and applied a patch posted below: >Description: With newpcm driver that probed CS4231A on half-duplex mode, only record 8bit-mono. Other formats (16bit and/or stereo) cannot record exactly. The problem is happened in any sample rate. OSS/Free driver work fine. In newpcm driver, CS4231A is set to Mode2 (enhanced mode). In Mode2, recording format should be set to a register I28. But newpcm driver is not set the I28 in half-duplex mode. The problem is always happened in NEC PC98's internal CS4231A, which support half-duplex only. >How-To-Repeat: Wavrec is a part of ports/audio/wavplay. cat /dev/sndstat FreeBSD Audio Driver (newpcm) Oct 15 2002 22:36:30 Installed devices: pcm0: at io 0xf40 irq 10 drq 1 (1p/1r/0v channels) # it's not full-duplex. /usr/bin/time wavrec -M -b 8 -t 5 foo.wav # mono/8bit/5sec. 5.28 real 0.01 user 0.28 sys # work fine. /usr/bin/time wavrec -S -b 16 -t 5 bar.wav # stereo/16bit/5sec. 20.27 real 0.00 user 0.40 sys # four times as many as five seconds. /usr/bin/time wavplay bar.wav Pathname: test.wav Device: /dev/audio Sampling Rate: 22050 Hz Mode: Stereo Samples: 110250 Bits: 16 5.22 real 0.02 user 0.29 sys # sounds like a tongle twister. >Fix: In OSS/Free driver, the I28 register is set unconditionally. I don't know what a modification is the best way. --- mss.c.orig Sun Nov 24 23:40:02 2002 +++ mss.c Sun Nov 24 23:40:08 2002 @@ -998,7 +998,9 @@ arg <<= 4; ad_enter_MCE(mss); ad_write(mss, 8, (ad_read(mss, 8) & 0x0f) | arg); - if (FULL_DUPLEX(mss)) ad_write(mss, 28, arg); /* capture mode */ + if (ad_read(mss, 12) & 0x40) { /* mode2 ? */ + ad_write(mss, 28, arg); /* capture mode */ + } ad_leave_MCE(mss); return format; } >Release-Note: >Audit-Trail: >Unformatted: >> "PC98 internal CS4231A is mis-detected to OPTi chip (newpcm)" >> http://www.freebsd.org/cgi/query-pr.cgi?pr=45673 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message