From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from smtp.nokia.com ([192.100.122.230]:37473 "EHLO mgw-mx03.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752218AbZDUNs6 (ORCPT ); Tue, 21 Apr 2009 09:48:58 -0400 Message-ID: <49EDCE9F.2030700@maxwell.research.nokia.com> Date: Tue, 21 Apr 2009 16:48:15 +0300 From: Sakari Ailus MIME-Version: 1.0 To: "Weng, Wending" CC: linux-media@vger.kernel.org, "Aguirre Rodriguez, Sergio Alberto" Subject: Re: need help for omap3 isp-camera interface References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: Weng, Wending wrote: > Hi All, > > I'm working on video image capture(omap3 isp) interface(PSP 1.0.2), > and have met many difficulties. At the camera side, the 8 bits BT656 > signal are connected to cam_d[0-7], which looks OK. The cam_fld, > cam_hs and cam_vs are also connected, At the omap3 side, I use > saMmapLoopback.c, it runs, however, it receives only HS_VS_IRQ, but > no any image data. I checked FLDSTAT(CCDC_SYN_MODE), it's never > changed. Right now, I don't know what to check, if you can give some > suggestions, your help will be greatly appreciated. Thanks in > advance. I haven't been using the parallel interface nor I know anyone else who would have. Sergio, any idea? Anyway, this sounds like a problem in the parallel receiver side. You could try also configuring the VD1 IRQ to happen much earlier, say on 10th line. See ISPCCDC_VDINT handling in ispccdc.c. I'm going to update the patchset as soon as I get linux-omap booting again. -- Sakari Ailus sakari.ailus@maxwell.research.nokia.com