Hi Guennadi, --- Guennadi Liakhovetski <g.liakhovetski@xxxxxx> wrote: > On Mon, 13 Apr 2009, Agustin wrote: > > > Which patchset should one use today to have latest and most stable > > "mx3_camera" driver in 2.6.29? > > > > [snip] > > Please, use http://marc.info/?l=linux-arm-kernel&m=123866462620240&w=2 > also notice, which patches it needs. As a basis you can take linux-next or > a suitable branch from git://git.pengutronix.de/git/imx/linux-2.6.git I managed to merge your patch stack of 20090415 on top of Sascha's stack for 2.6.29. I think that is just before the "v4l-subdev" work. Then I adapted my code to work pretty much as your mt9p031 driver. Now I get a timeout when trying to capture a single image, with the same hardware configuration that is working fine with 2.6.28-next. I can see my "Sixcam" camera dumping a few frames before the timeout. 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(). Many thanks, --Agustín. -- Agustin Ferrin Pozuelo Embedded Systems Consultant http://embedded.ferrin.org Tel. +34 610502587 -- 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
