On Tue, 5 May 2009, Guennadi Liakhovetski wrote: > > On Tue, 5 May 2009, Agustin wrote: > > > No, as there is no driver_match_device() in 2.6.29 nor in my patched > > version. How important is that? > > No, sorry, forget it, that's not your problem. > > > Meanwhile I noticed that IRQ 176 is being triggered, then discarded as > > "unhandled" by ipu_idmac, who gives the message "IRQ on active buffer on > > channel 7, active 0, ready 0, 0, current 0!" below... > > Yes, and this is not good. If you look in drivers/dma/ipu/ipu_idmac.c > idmac_interrupt() you'll see, that this message is printed when IDMAC > produces an interrupt for a DMA buffer, but at the same time it says, that > the buffer, that should have completed is still in use... I've seen a few > of such inconsistencies, and up to now always managed to get rid of them > in one or another way. But that should not be related to the conversion. > Maybe your formats on the sensor and on the SoC do not match, verify that. Thanks for the tip but I am still out of luck. I enabled DEBUG in ipu_idmac.c just to see that frame start and end are happening more or less when they should: [...] camera 0-0: mx3_camera: Submitted cookie 2 DMA 0x86400000 Got SOF IRQ 177 on Channel 7 Got EOF IRQ 178 on Channel 7 dma dma0chan7: ipu_idmac: IDMAC irq 176, buf 0 dma dma0chan7: ipu_idmac: IRQ on active buffer on channel 7, active 0, ready 0, 0, current 0! Select timeout. [...] I also configured everything to the simplest mode I can have: 8-bit bus, sample falling. So I am now looking at IDMAC, trying to guess what could be wrong, but I feel quite lost at the moment. I am starting to fear that I introduced some subtle bug while merging your stack into Sascha's... Where can I check mx3_camera.c, ipu_idmac.c, soc_camera.c prior to the subdev changes? I would like them to check that my edited patches lead to the same sources as the originals. Thanks & regards, --Agustín. > > > > > I am not sure where to look for the problem, so here is a debug dump in > case > > > you can > > > > point me in the right direction... > > > > > > > > > > > > root@SixCam:~ insmod sixcam.ko > > > > sixcam_mod_init(): ok > > > > Sixcam TRIGGER on Sixcam board: ATA_CS0~MCU3_26 > > > > sixcam_i2c_probe(): ok > > > > camera 0-0: mx3_camera: Set SENS_CONF to f00, rate 19523897 > > > > sixcam_init(): initialized camera. > > > > camera 0-0: MX3 Camera driver attached to camera 0 > > > > sixcam_video_probe(): probed camera. > > > > mx3-camera mx3-camera.0: soc_camera: Allocated video_device c6080a00 > > > > sixcam_release(): ok > > > > camera 0-0: MX3 Camera driver detached from camera 0 > > > > > > > > root@SixCam:~ capture --bpp 8 --size 1536x1024 > > > > mx3-camera.0: mx3_camera: requested bus width 8 bit: 0 > > > > mx3-camera.0: mx3_camera: requested bus width 15 bit: 0 > > > > mx3-camera.0: mx3_camera: requested bus width 10 bit: 0 > > > > camera 0-0: soc_camera: Found 0 supported formats. > > > > mx3-camera.0: mx3_camera: requested bus width 8 bit: 0 > > > > mx3-camera.0: mx3_camera: Providing format Monochrome 8 bit in > pass-through > > > mode > > > > mx3-camera.0: mx3_camera: requested bus width 15 bit: 0 > > > > mx3-camera.0: mx3_camera: Providing format Monochrome 16 bit in > pass-through > > > mode > > > > mx3-camera.0: mx3_camera: requested bus width 10 bit: 0 > > > > mx3-camera.0: mx3_camera: Providing format Sixcam 10-bit in pass-through > mode > > > > camera 0-0: mx3_camera: Set SENS_CONF to f00, rate 19523897 > > > > sixcam_init(): initialized camera. > > > > camera 0-0: MX3 Camera driver attached to camera 0 > > > > camera 0-0: soc_camera: camera device open > > > > sixcam_set_fmt(): 640x480+0+0 > > > > sixcam_try_fmt(): icd->width=640 icd->height=480 fmt.pix.width=1536 > > > fmt.pix.height=1024. > > > > --> fmt.pix.width=1536 fmt.pix.height=1024. > > > > ipu-core: ipu_idmac: timeout = 0 * 10ms > > > > ipu-core: ipu_idmac: init channel = 7 > > > > ipu-core: ipu_idmac: IDMAC_CONF 0x70, IC_CONF 0x0, IDMAC_CHA_EN 0x0, > > > IDMAC_CHA_PRI 0x80, IDMAC_CHA_BUSY 0x0 > > > > ipu-core: ipu_idmac: BUF0_RDY 0x0, BUF1_RDY 0x0, CUR_BUF 0x0, DB_MODE 0x0, > > > > TASKS_STAT 0x3 > > > > dma dma0chan7: ipu_idmac: Found channel 0x7, irq 176 > > > > sixcam_set_fmt(): 1536x1024+0+0 > > > > camera 0-0: soc_camera: set width: 1536 height: 1024 > > > > mx3-camera.0: mx3_camera: requested bus width 8 bit: 0 > > > > mx3-camera.0: mx3_camera: Flags cam: 0x2695 host: 0xf0fd common: 0x2095 > > > > sixcam_set_bus_param(): 0x2095 > > > > mx3-camera.0: mx3_camera: Set SENS_CONF to 708 > > > > VIDIOC_S_FMT: width 1536, heightcamera 0-0: soc_camera: > soc_camera_reqbufs: 1 > > > > 1024, pixelformat = 'GREY' > > > > mx3-camera.0: videobuf_dma_contig: __videobuf_mmap_free > > > > camera 0-0: soc_camera: mmap called, vma=0xc4f886e0 > > > > mx3-camera.0: videobuf_dma_contig: __videobuf_mmap_mapper > > > > mx3-camera.0: videobuf_dma_contig: dma_alloc_coherent data is at addr > c9000000 > > > (size 1572864) > > > > mx3-camera.0: videobuf_dma_contig: mmap c4fafec0: q=c8b63004 > 40147000-402c7000 > > > (180000) pgoff 00084000 buf 0 > > > > mx3-camera.0: videobuf_dma_contig: vm_open c4fafec0 > > > [count=0,vma=40147000-402c7000] > > > > camera 0-0: soc_camera: vma start=0x40147000, size=1572864, ret=0 > > > > mx3-camera.0: videobuf_dma_contig: __videobuf_iolock memory method MMAP > > > > camera 0-0: soc_camera: soc_camera_streamon > > > > sixcam_start_capture(): trigger on! > > > > ipu-core: ipu_idmac: write param mem - addr = 0x00010070, data = > 0x00000000 > > > > ipu-core: ipu_idmac: write param mem - addr = 0x00010071, data = > 0x00004000 > > > > ipu-core: ipu_idmac: write param mem - addr = 0x00010072, data = > 0x00000000 > > > > ipu-core: ipu_idmac: write param mem - addr = 0x00010073, data = > 0xFF5FF000 > > > > ipu-core: ipu_idmac: write param mem - addr = 0x00010074, data = > 0x00000003 > > > > ipu-core: ipu_idmac: write param mem - addr = 0x00010078, data = > 0x84000000 > > > > ipu-core: ipu_idmac: write param mem - addr = 0x00010079, data = > 0x00000000 > > > > ipu-core: ipu_idmac: write param mem - addr = 0x0001007A, data = > 0x3E0E2FFB > > > > ipu-core: ipu_idmac: write param mem - addr = 0x0001007B, data = > 0x00000002 > > > > ipu-core: ipu_idmac: write param mem - addr = 0x0001007C, data = > 0x00000000 > > > > dma dma0chan7: ipu_idmac: Submitting sg c4e0772c > > > > dma dma0chan7: ipu_idmac: Updated sg c4e0772c on channel 0x7 buffer 0 > > > > ipu-core: ipu_idmac: IDMAC_CONF 0x70, IC_CONF 0x0, IDMAC_CHA_EN 0x0, > > > IDMAC_CHA_PRI 0x80, IDMAC_CHA_BUSY 0x0 > > > > ipu-core: ipu_idmac: BUF0_RDY 0x80, BUF1_RDY 0x0, CUR_BUF 0x0, DB_MODE > 0x0, > > > TASKS_STAT 0x3 > > > > ipu-core: ipu_idmac: IDMAC_CONF 0x70, IC_CONF 0x40000001, IDMAC_CHA_EN > 0x80, > > > IDMAC_CHA_PRI 0x80, IDMAC_CHA_BUSY 0x0 > > > > ipu-core: ipu_idmac: BUF0_RDY 0x80, BUF1_RDY 0x0, CUR_BUF 0x0, DB_MODE > 0x0, > > > TASKS_STAT 0x3 > > > > camera 0-0: mx3_camera: Submitted cookie 2 DMA 0x84000000 > > > > dma dma0chan7: ipu_idmac: IDMAC irq 176, buf 0 > > > > dma dma0chan7: ipu_idmac: IRQ on active buffer on channel 7, active 0, > ready > > > 0, 0, current 0! > > > > > > > > [ ten seconds pass, and a lot of frames come out of my camera ] > > > > > > > > capture: Select timeout. Exiting... > > > > mx3-camera.0: videobuf_dma_contig: vm_close c4fafec0 > > > [count=1,vma=40147000-402c7000] > > > > mx3-camera.0: videobuf_dma_contig: munmap c4fafec0 q=c8b63004 > > > > camera 0-0: mx3_camera: Release active DMA 0x84000000 (state 3), queue not > > > > empty > > > > camera 0-0: mx3_camera: free_buffer (vb=0xc4e076c0) 0x40147000 1572864 > > > > mx3-camera.0: videobuf_dma_contig: buf[0] freeing c9000000 > > > > ipu-core: ipu_idmac: timeout = 0 * 10ms > > > > sixcam_release(): ok > > > > camera 0-0: MX3 Camera driver detached from camera 0 > > > > camera 0-0: soc_camera: camera device close > > > > > > > > Any clue? > > > > > > > > BTW, this dump shows a few apparently unneeded calls to camera set_fmt() > and > > > get_bus_params(). > > --- > Guennadi Liakhovetski, Ph.D. > Freelance Open-Source Software Developer > http://www.open-technology.de/ -- 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
