Date: Tue, 23 Dec 2003 11:14:48 +0900 From: ie9t-sbgk <ie9t-sbgk@asahi-net.or.jp> To: Nate Lawson <nate@root.org>, Takeshi Shibagaki <shiba@freebsd.org> Cc: cvs-all@freebsd.org Subject: Re: cvs commit: src/sys/dev/usb ohci.c ohci_pci.c ohcivar.h Message-ID: <opr0l26yymleoavb@mail.asahi-net.or.jp> In-Reply-To: <20031222094416.X88639@root.org> References: <20031222151901.96F8C16A56B@hub.freebsd.org> <20031222094416.X88639@root.org>
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Hi Nate-san. On Mon, 22 Dec 2003 09:46:54 -0800 (PST), Nate Lawson <nate@root.org> wrote: > On Mon, 22 Dec 2003, Takeshi Shibagaki wrote: >> Modified files: >> sys/dev/usb ohci.c ohci_pci.c ohcivar.h >> Log: >> Enable support for DEVICE_SUSPEND, DEVICE_RESUME and DEVICE_SHUTDOWN >> methods for USB devices in the same way of uhci driver. But this change >> is not complete because some ohci controlers are not initialized completely. >> So "kernel: usb0: 1 scheduling overruns" interrupt will generate many times. >> >> This change will be same one in PR kern/60099. >> >> Discussed on [bsd-nomads:16737] - [bsd-nomads:16746]. >> >> Revision Changes Path >> 1.140 +2 -12 src/sys/dev/usb/ohci.c >> 1.38 +40 -0 src/sys/dev/usb/ohci_pci.c >> 1.36 +3 -0 src/sys/dev/usb/ohcivar.h > > Also, > > Lots of input from: Anish Mistry <amistry@am-productions.biz> > > Now any chance of getting you to look at uhci(4)? It has similar > suspend/resume problems. I don't understand you well, but do you ask me whether looking at "man 4 uhci" or uhci driver source(uchci.c...)? If you are talking about uchi driver source, I have been look, and I'm using VAIO Z505D,Z505V/BP, there is no problem. these machine have uhci(Intel 82371AB/EB (PIIX4) USB controller). Please tell me an example in the case of uhci, ohci problem. > Perhaps Linux has some clues to the best > approach. I have researched linux 2.6.0 drivers. Maybe my Libretto L1 don't work well at resume process in linux, also Victor InterLink MP-XP7210 (ume@freebsd.org's machine). In japanese some laptop machines, OHCI registers are clear almostly at suspend/resume process. I had caught up re-init process added OHCI register write code step by step, and I know it is necessary about 50% OHCI register init codes of ohci_init() at suspend/resume. So I think it is better holding in common between boot init codes and resume init one. Is it wrong? Takeshi Shibagaki ie9t-sbgk@asahi-net.or.jp
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