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Date:      Thu, 28 Oct 1999 14:08:58 +0800 (CST)
From:      Avatar Liang <avatar@brahms.mmlab.cse.yzu.edu.tw>
To:        FreeBSD-gnats-submit@freebsd.org
Subject:   i386/14574: ISA based ESS1688 support for VoxWare sound driver
Message-ID:  <199910280608.OAA00783@brahms.mmlab.cse.yzu.edu.tw>

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>Number:         14574
>Category:       i386
>Synopsis:       ISA based ESS1688 support(partially) for VoxWare sound driver
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Wed Oct 27 23:20:01 PDT 1999
>Closed-Date:
>Last-Modified:
>Originator:     Tai-hwa Liang
>Release:        FreeBSD 3.3-RELEASE i386
>Organization:
Multimedia Laboratory at Yuan Ze University, Taiwan, R.O.C.
>Environment:

FreeBSD 3.3-RELEASE
	

>Description:

	Attached is the patch which enables basic ISA ESS based soundcard
	support for VoxWare sound driver(/sys/i386/isa/sound).

           * The new ess_init() routine should recognize following chips:

                   ESS 488/688/1788/1868/1869/1878/1887/1888

           * Support 16 bits audio playback/record

           * Audio capabilties displayed via "mpg123 -vv":

                   |  s16  |  u16  |  u8   |  s8   | ulaw  | alaw  |
               --------------------------------------------------------
             8000  |  M/S  |       |  M/S  |       |  M/S  |       |
            11025  |  M/S  |       |  M/S  |       |  M/S  |       |
            12000  |  M/S  |       |  M/S  |       |  M/S  |       |
            16000  |  M/S  |       |  M/S  |       |  M/S  |       |
            22050  |  M/S  |       |  M/S  |       |  M/S  |       |
            24000  |  M/S  |       |  M/S  |       |  M/S  |       |
            32000  |  M/S  |       |  M/S  |       |  M/S  |       |
            44100  |  M/S  |       |  M/S  |       |  M/S  |       |
            48000  |  M/S  |       |  M/S  |       |  M/S  |       |

           * This patch has been tested on my laptop(ESS1869 built-in) for a
             couple of months.

	   * This PR fixed a bug in PR/12113 which may lead to infinite
	     waiting while user-land applications do DMAbuf_sync() related
	     operations; therefore, PR/12113 should be closed.

	

>How-To-Repeat:

	
	Please check & commit this patch, thanks.
	Patch has been tested on 3.2-STABLE ~ 3.3-RELEASE series.

>Fix:
	
	
	Which were not included in following patch:

		* MIDI playback.
		* Full duplex mode.
		* ESS 1887 specific record setting.

	* The ess_XXXX related routine should be kept into a separated file;
	  however, it seems that some other SB-clone drivers(JAZZ 16, SoundMan
	  Wave) shared the common routine(sb_XXXX) in sb_dsp.c & sb_mixer.c.
	  Any volunteer wants to tidy them up?

begin 644 OSS_ESS.patch.gz
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end

>Release-Note:
>Audit-Trail:
>Unformatted:
 


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