Re: [PATCH 2/2 v2] dma: ipu_idmac: do not lose valid received data in the irq handler

2011-02-04 Thread Markus Niebel
: Hi Markus On Fri, 4 Feb 2011, Markus Niebel wrote: Hello Guennadi, hello Anatolij I've tried that with my setup: Hardware: i.MX35, special CCD camera over FPGA Kernel: 2.6.34 patch v4l: soc-camera: start stream after queueing the buffers is applied and our camera driver handles str

Re: [PATCH 2/2 v2] dma: ipu_idmac: do not lose valid received data in the irq handler

2011-02-04 Thread Markus Niebel
Hello Guennadi, hello Anatolij I've tried that with my setup: Hardware: i.MX35, special CCD camera over FPGA Kernel: 2.6.34 patch v4l: soc-camera: start stream after queueing the buffers is applied and our camera driver handles streamon / streamoff so that no sync signal / clock is provided,

Re: mx3_camera and DMA / double buffering

2011-01-17 Thread Markus Niebel
Am 17.01.2011 17:27, schrieb Guennadi Liakhovetski: On Mon, 17 Jan 2011, Markus Niebel wrote: Hello, sorry for the __very__ long timeout. The doublebuffering is indeed enabled when the second buffer is queued - my fault, should have read the code more carfully. Good. But in this way a new

Re: mx3_camera and DMA / double buffering

2011-01-17 Thread Markus Niebel
Am 03.12.2010 21:07, schrieb Guennadi Liakhovetski: On Fri, 3 Dec 2010, Markus Niebel wrote: Hello, thank you for your answer. I think there is a problem, but I did not describe it correctly. See my comments On Thu, 2 Dec 2010, Markus Niebel wrote: Hello, we're working with a sp

Re: mx3_camera and DMA / double buffering

2010-12-03 Thread Markus Niebel
Hello, thank you for your answer. I think there is a problem, but I did not describe it correctly. See my comments On Thu, 2 Dec 2010, Markus Niebel wrote: Hello, we're working with a special cameraboard (CCD + Analog Frontend IC). Using the soc_camera stack on the i.MX35 (mx3_camera

mx3_camera and DMA / double buffering

2010-12-02 Thread Markus Niebel
de of mx3_videobuf_prepare there is a comment, that the first buffer's scatterlist needs to contain two buffers but this is not implemented. I try to understand the interworking of the parts (soc_camera, videobuf, ipu_core and mx3_camera) and would help to fix it. Best regards, Markus Niebel -- To unsubs