(Unlooping Sameer and Mohit, as they don't longer maintain the driver) Hi John, > -----Original Message----- > From: John Sarman [mailto:johnsarman@xxxxxxxxx] > Sent: Wednesday, July 15, 2009 4:45 PM > To: sakari.ailus@xxxxxxxxx; Venkatraman, Sameer; Mohit Jalori; Aguirre > Rodriguez, Sergio Alberto; Tuukka Toivonen; linux-media > Subject: Help bringing up a sensor driver for isp omap34xx.c > > Hello, > I am having a problem deciphering what is wrong with my sensor > driver. It seems that everything operates on the driver but that I am > getting buffer overflows. I have fully tested the image sensor and it > is set to operate in 640x480 mode. currently it is like 648x 487 for > the dummy pixels and lines. I have enabled all the debugging #defines > in the latest code from the gitorious repository. Can you specify the gitorious repository URL you're using? I also had to edit > a few debug statements because they cause the compile to fail. Those > failures were due to the resizer rewrite and since the #defines were > commented out that code was never compiled. Anyways here is my dmesg > after I open and select the /dev/video0. > > I have been banging my head against a wall for 2 weeks now. > > Thanks, > <snip> > ISPCTRL: <1>isp_buf_queue: queue 0 vb 0, mmu 000a4000 > ISPCTRL: <1>isp_buf_queue: queue 1 vb 1, mmu 0013a000 > ISPCTRL: <1>isp_buf_queue: queue 2 vb 2, mmu 001d0000 > ISPCTRL: <1>isp_buf_queue: queue 3 vb 3, mmu 00266000 > ISPCTRL: HS_VS_IRQ <6>ISPCTRL: OVF_IRQ <6>ISPCTRL: > ISPCTRL: HS_VS_IRQ <6>ISPCTRL: OVF_IRQ <6>ISPCTRL: > ISPCTRL: HS_VS_IRQ <6>ISPCTRL: OVF_IRQ <6>ISPCTRL: > ISPCTRL: HS_VS_IRQ <6>ISPCTRL: OVF_IRQ <6>ISPCTRL: Seems that you're getting an overflow in the SBL (Shared Buffer Logic) component, which is the one that manages to save/load the buffers from memory. It could happen because the SBL is writing pretty slow to memory... Is it possible that you share your patches to integrate this sensor driver + boardfile changes you did? That way I can help you more. Regards, Sergio -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
