%include default.mgp
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page
%nodefault
%size 7, xfont times-medium-i, vfont min, fore white, vgap 20

%center

%size 5
N+I '98 FreeBSD BOF

%size 7
進歩的ドライバ作成のすすめ



%size 5
中川 好久
%size 4
<nakagawa@jp.freebsd.org>

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page

最新ドライバ開発状況

	2.2.6-RELEASE より追加
		Luigi's new audio driver
		Bt848 capture
		ISA PnP

	新規開発中？
		CardBus
		USB
		IEEE1394

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page

Luigi's new audio driver

	Voxware ベースより書き直された

	現在は mixer と PCM のみ

	新機能
		CS423x, OPL3-SAx, Vibra16X, ...
		PCI のものは資料がないので対応できない

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page

Bt848 capture

	Bt848/849 を採用した多くのカードに対応

	安価・高性能な PCI capture card
		映像のみ

	fxtv
		mpeg capture

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page

ISA PnP

	リソース割り当て割り当て問題を解決
		BIOS
		OS

	FreeBSD では 2.2.6-RELEASE より対応
		UserConfig
		native driver

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page

ISA PnP - UserConfig

	起動時に手動設定
		設定可能な値は pnpinfo で取得

	Legacy ISA driver で probe/attach
		SB などではこっちのほうが幸せ

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page

ISA PnP - native driver

	対応ドライバ
		Luigi's new audio driver (pcm)
		sio

	ed driver 対応を試作
		http://hachi.nwsl.mesh.ad.jp/~y-nakaga/files/

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page

ISA PnP LKM

	ISA PnP native driver を LKM に
		Luigi's new audio driver をサンプルとして改造

	PCI LKM を参考に開発
		http://hachi.nwsl.mesh.ad.jp/~y-nakaga/files/

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page

CardBus

	PAO をベースに開発中

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page

USB

	二種類のチップ
		UHCI (Intel)
		OHCI (etc)

	Linux USB
		UHCI 対応

	FreeBSD はどうしよう？

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%page

IEEE1394

	Adaptec 独自
	TI 独自
	OHCI