Date: Sun, 15 Jan 2012 20:57:55 +0200 From: Alexander Motin <mav@FreeBSD.org> To: Niclas Zeising <zeising@daemonic.se> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r230130 - in head: share/man/man4 sys/conf sys/dev/sound/pci/hda sys/modules/sound/driver/hda Message-ID: <4F1321B3.8020409@FreeBSD.org> In-Reply-To: <4F1320CC.5040309@daemonic.se> References: <201201151321.q0FDLbln084687@svn.freebsd.org> <4F1320CC.5040309@daemonic.se>
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On 15.01.2012 20:54, Niclas Zeising wrote: > On 2012-01-15 14:21, Alexander Motin wrote: >> Author: mav >> Date: Sun Jan 15 13:21:36 2012 >> New Revision: 230130 >> URL: http://svn.freebsd.org/changeset/base/230130 >> >> Log: >> Major snd_hda driver rewrite: >> - Huge old hdac driver was split into three independent pieces: HDA >> controller driver (hdac), HDA CODEC driver (hdacc) and HDA sudio function >> driver (hdaa). >> - Support for multichannel recording was added. Now, as specification >> defines, driver checks input associations for pins with sequence numbers >> 14 and 15, and if found (usually) -- works as before, mixing signals >> together. If it doesn't, it configures input association as multichannel. >> - Signal tracer was improved to look for cases where several DACs/ADCs in >> CODEC can work with the same audio signal. If such case found, driver >> registers additional playback/record stream (channel) for the pcm device. >> - New controller streams reservation mechanism was implemented. That >> allows to have more pcm devices then streams supported by the controller >> (usually 4 in each direction). Now it limits only number of simultaneously >> transferred audio streams, that is rarely reachable and properly reported >> if happens. >> - Codec pins and GPIO signals configuration was exported via set of >> writable sysctls. Another sysctl dev.hdaa.X.reconfig allows to trigger >> driver reconfiguration in run-time. >> - Driver now decodes pins location and connector type names. In some cases >> it allows to hint user where on the system case connectors, related to the >> pcm device, are located. Number of channels supported by pcm device, >> reported now (if it is not 2), should also make search easier. >> - Added workaround for digital mic on some Asus laptops/netbooks. >> >> MFC after: 2 months >> Sponsored by: iXsystems, Inc. > > Just a question. Does this need any changes to the kernel config, such > as adding different "device hdac" etc. or is the default device hda > still ok? Nothing changed there. `device snd_hda` and snd_hda kernel module include all parts. -- Alexander Motin
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