From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: [Xenomai-core] No hardware interrupts with xenomai on ppc405 From: Philippe Gerum In-Reply-To: <200609111058.44417.matthias.fuchs@domain.hid> References: <4503EB88.2040309@domain.hid> <4503F0A8.8050602@domain.hid> <200609111058.44417.matthias.fuchs@domain.hid> Content-Type: text/plain Date: Mon, 11 Sep 2006 12:20:27 +0200 Message-Id: <1157970027.4934.6.camel@domain.hid> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Reply-To: rpm@xenomai.org List-Id: "Xenomai life and development \(bug reports, patches, discussions\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Matthias Fuchs Cc: xenomai@xenomai.org On Mon, 2006-09-11 at 10:58 +0200, Matthias Fuchs wrote: > On Sunday 10 September 2006 13:02, Wolfgang Grandegger wrote: > > Hi Matthias, > > > > Matthias Fuchs wrote: > > > Hi, > > > > > > I was trying to use some external hardware interupts on a PPC405 board > > > as part of a hacking session with Jan to bring up the rtcan driver on > > > this board. > > > > > > > Could you please add printk statements to the ack, enable and end > > functions to arch/ppc/syslib/ppc4xx_pic.c if the irq number matches. > > Please print also SR, ER and status. > > 1) insmodding the driver: > bash-3.00# modprobe xeno_rtcan_isa mem=0xf0000000 irq=25 > rtcan: registered rtcan0 > _enable: ER=003f0040, SR=c0000000 > > 2) receiving > bash-3.00# /sbin/rtcanconfig rtcan0 -b 500000 up > bash-3.00# ./bin/rtcanrecv rtcan0 > _ack: ER=003f0000, SR=c0000040 > _end: ER=003f0000, SR=c0000000 > #0: (1) <0x000> [8] 00 00 00 00 01 00 00 00 > > That's it. When sending a 2nd message to the board, nothing happens. > We have a LED on the SJA1000 interrupt signal. After sending the 2nd message > this LED stays on, so the interrupt is never handled. > > It seems that the interrupt is not reenabled (bit 25) in the "end" function. > It's likely an Adeos issue. Could you try this patch? TIA, --- arch/ppc/syslib/ppc4xx_pic.c~ 2005-10-28 02:02:08.000000000 +0200 +++ arch/ppc/syslib/ppc4xx_pic.c 2006-09-11 12:18:14.000000000 +0200 @@ -72,7 +72,8 @@ mtdcr(DCRN_UIC_SR(UIC##n), mask); \ ACK_UIC##n##_PARENT \ } \ - if (!(status & (IRQ_DISABLED | IRQ_INPROGRESS))) { \ + if (!ipipe_root_domain_p || \ + !(status & (IRQ_DISABLED | IRQ_INPROGRESS))) { \ ppc_cached_irq_mask[n] |= mask; \ mtdcr(DCRN_UIC_ER(UIC##n), ppc_cached_irq_mask[n]); \ } \ > Matthias > > _______________________________________________ > Xenomai-core mailing list > Xenomai-core@domain.hid > https://mail.gna.org/listinfo/xenomai-core -- Philippe.