> -----Original Message----- > From: Michael Trimarchi [mailto:michael@xxxxxxxxxxxxxxxxxxxxxxx] > Sent: Tuesday, January 12, 2010 7:15 AM > To: Aguirre, Sergio > Cc: Nishanth Menon; linux-omap@xxxxxxxxxxxxxxx; linux- > media@xxxxxxxxxxxxxxx > Subject: Re: ISP OMAP3 camera support ov7690 > > Hi all, > > Now I have a good camera pcb and I can test again the driver. My board is > an overo gumstix board. Excellent! Please let me know if you're having issues with it. Thanks for your interest! Regards, Sergio > > Aguirre Rodriguez, Sergio Alberto wrote: > > Hi Michael, > > > >> -----Original Message----- > >> From: linux-omap-owner@xxxxxxxxxxxxxxx > >> [mailto:linux-omap-owner@xxxxxxxxxxxxxxx] On Behalf Of michael > >> Sent: Sunday, October 04, 2009 7:29 PM > >> To: Nishanth Menon > >> Cc: linux-omap@xxxxxxxxxxxxxxx; linux-media@xxxxxxxxxxxxxxx > >> Subject: Re: ISP OMAP3 camera support ov7690 > >> > >> Hi, > >> > >> cc: linux-media > >> > >> Nishanth Menon wrote: > >>> michael said the following on 10/03/2009 06:13 PM: > >>>> I'm writing a driver to support the ov7690 camera and I have some > >>>> question about the meaning of: > >>>> > >>>> - datalane configuration > >>> CSI2 Data lanes - each CSI2 lane is a differential pair. > >> And, at least 1 > >>> clock and data lane is used in devices. > >> Sorry can you explain a little bit more. I have the camera > >> connected to the > >> cam_hs and cam_vs and the data is 8Bit. I use the the isp init > >> structure. The sccb bus works great and I can send > >> configuration to it, > >> but I don't receive any interrupt from the ics, seems that it > >> doen't see > >> the transaction: > >> > >> The ISPCCDC: ###CCDC SYN_MODE=0x31704 seems ok. > >> > >> > >> static struct isp_interface_config ov7690_if_config = { > >> .ccdc_par_ser = ISP_CSIA, > >> .dataline_shift = 0x0, > >> .hsvs_syncdetect = ISPCTRL_SYNC_DETECT_VSFALL, > > > > Can you try with ISPCTRL_SYNC_DETECT_VSRISE ? > > > >> .strobe = 0x0, > >> .prestrobe = 0x0, > >> .shutter = 0x0, > >> .wenlog = ISPCCDC_CFG_WENLOG_AND, > >> .wait_hs_vs = 0x4, > >> .raw_fmt_in = ISPCCDC_INPUT_FMT_GR_BG, > >> .u.csi.crc = 0x0, > >> .u.csi.mode = 0x0, > >> .u.csi.edge = 0x0, > >> .u.csi.signalling = 0x0, > >> .u.csi.strobe_clock_inv = 0x0, > >> .u.csi.vs_edge = 0x0, > >> .u.csi.channel = 0x0, > >> .u.csi.vpclk = 0x1, > >> .u.csi.data_start = 0x0, > >> .u.csi.data_size = 0x0, > >> .u.csi.format = V4L2_PIX_FMT_YUYV, > >> }; > >> > >> and I don't know the meaning of > >> > >> lanecfg.clk.pol = OV7690_CSI2_CLOCK_POLARITY; > >> lanecfg.clk.pos = OV7690_CSI2_CLOCK_LANE; > >> lanecfg.data[0].pol = OV7690_CSI2_DATA0_POLARITY; > >> lanecfg.data[0].pos = OV7690_CSI2_DATA0_LANE; > >> lanecfg.data[1].pol = OV7690_CSI2_DATA1_POLARITY; > >> lanecfg.data[1].pos = OV7690_CSI2_DATA1_LANE; > >> lanecfg.data[2].pol = 0; > >> lanecfg.data[2].pos = 0; > >> lanecfg.data[3].pol = 0; > >> lanecfg.data[3].pos = 0; > >> > > > > This is the physical connection details: > > > > - The .pol field stands for the differntial pair polarity. > > (i.e. the order in which the negative and positive connections > > are pugged in to the CSI2 ComplexIO module) > > What exact the meaning of the pol, sorry? I have a signal that is > connected > to a pin. If the pos is avalaible can I use it? > It's not important how to route the signal but don't route on the same > lane. > Is it right? > > This is the timing of the camera so I can check signal, but I don't > receive interrupt > of isp engine > > > > > The camera is direct connected to the > camera omap camera signal and using the oscilloscope I can see the hs/vs > signal > The hs is low and go up, like the vs signal. I have only one camera > with that use D0 to D7 data bit. > > http://www.gumstix.net/Hardware/view/I/O-connectors-cabling/Gumstix-Overo- > 27-pin-connector-J5-to-manage-camera-controls/112.html > > static struct isp_interface_config ov7690_if_config = { > .ccdc_par_ser = ISP_CSIA, > .dataline_shift = 0x0, > .hsvs_syncdetect = ISPCTRL_SYNC_DETECT_VSRISE, > .strobe = 0x0, > .prestrobe = 0x0, > .shutter = 0x0, > .wenlog = ISPCCDC_CFG_WENLOG_AND, > .wait_hs_vs = 0x4, > .raw_fmt_in = ISPCCDC_INPUT_FMT_GR_BG, > .u.csi.crc = 0x0, > .u.csi.mode = 0x0, > .u.csi.edge = 0x0, > .u.csi.signalling = 0x0, > .u.csi.strobe_clock_inv = 0x0, > .u.csi.vs_edge = 0x0, > .u.csi.channel = 0x0, > .u.csi.vpclk = 0x1, > .u.csi.data_start = 0x0, > .u.csi.data_size = 0x0, > .u.csi.format = V4L2_PIX_FMT_YUYV, > }; > > This is my initial configuration > #define OV7690_CSI2_CLOCK_POLARITY 0 /* +/- pin order */ > #define OV7690_CSI2_DATA0_POLARITY 0 /* +/- pin order */ > #define OV7690_CSI2_DATA1_POLARITY 0 /* +/- pin order */ > #define OV7690_CSI2_CLOCK_LANE 1 /* Clock lane position: 1 > */ > #define OV7690_CSI2_DATA0_LANE 2 /* Data0 lane position: 2 > */ > #define OV7690_CSI2_DATA1_LANE 3 /* Data1 lane position: 3 > */ > tim#define OV7690_CSI2_PHY_THS_TERM 2 > #define OV7690_CSI2_PHY_THS_SETTLE 23 > #define OV7690_CSI2_PHY_TCLK_TERM 0 > #define OV7690_CSI2_PHY_TCLK_MISS 1 > #define OV7690_CSI2_PHY_TCLK_SETTLE 14 > > With this clock polarity > > lanecfg.clk.pol = OV7690_CSI2_CLOCK_POLARITY; > lanecfg.clk.pos = OV7690_CSI2_CLOCK_LANE; > lanecfg.data[0].pol = OV7690_CSI2_DATA0_POLARITY; > lanecfg.data[0].pos = OV7690_CSI2_DATA0_LANE; > lanecfg.data[1].pol = OV7690_CSI2_DATA1_POLARITY; > lanecfg.data[1].pos = OV7690_CSI2_DATA1_LANE; > lanecfg.data[2].pol = 0; > lanecfg.data[2].pos = 0; > lanecfg.data[3].pol = 0; > lanecfg.data[3].pos = 0; > isp_csi2_complexio_lanes_config(&isp->isp_csi2, &lanecfg); > > Michael -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
