Linux/AM5708: CSI2-camera can not get the interrupt/buffer

yu chen

Part Number: AM5708

Tool/software: Linux

Hi,

I am using custom am5708 board and ti-processor-sdk-linux-rt-am57xx-evm-04.03.00.05.

the dts is base on am571x-idk.dts,here is my configuration.
it create video0 node successfully,

ov5640: camera@3c {
        compatible = "ovti,ov5640";
        pinctrl-names = "default";
        pinctrl-0 = <&ov5640_pins_default>;
        reg = <0x3c>;

        powerdown-gpios = <&gpio5 18 GPIO_ACTIVE_LOW>;

        clock-frequency = <24000000>;
        clocks = <&mclk 0>;
        clock-names = "mclk";

        port {
            csi2_cam0: endpoint@0 {
                clock-lanes = <0>;
                data-lanes = <1 2>;
                remote-endpoint = <&csi2_phy0>;
            };
        };
    };
};

&cal {
    status = "okay";
};

&csi2_0 {
    status = "okay";
    reg = <0>;
    csi2_phy0: endpoint@0 {
        slave-mode;
        remote-endpoint = <&csi2_cam0>;
    };
};

here is what i meet,

root@am57xx-evm:~# dmabuftest -s 31:1920x1080 -c 1920x1080@YUYV -d /dev/video1
Opening Display..
using 1 connectors, 1920x1080 display, multiplanar: 1
Setting mode 1920x1080 on connector 31, crtc 34
Opening V4L2..
[  129.892645] vb2-core: __vb2_queue_alloc: allocated 6 buffers, 1 plane(s) each
Exported buffer fd = 6[  129.900163] vb2-core: __qbuf_dmabuf: buffer for plane 0 changed


Exported buffer fd = 8

Exported buffer fd = 10

Exported buffer fd = 12

Exported buffer fd = 14

Exported buffer f[  129.918002] vb2-core: vb2_core_qbuf: qbuf of buffer 0 succeeded
d = 16

[  129.926169] vb2-core: __qbuf_dmabuf: buffer for plane 0 changed
[  129.943411] vb2-core: vb2_core_qbuf: qbuf of buffer 1 succeeded
[  129.949373] vb2-core: __qbuf_dmabuf: buffer for plane 0 changed
[  129.965899] vb2-core: vb2_core_qbuf: qbuf of buffer 2 succeeded
[  129.971864] vb2-core: __qbuf_dmabuf: buffer for plane 0 changed
[  129.992238] vb2-core: vb2_core_qbuf: qbuf of buffer 3 succeeded
[  129.998205] vb2-core: __qbuf_dmabuf: buffer for plane 0 changed
[  130.014506] vb2-core: vb2_core_qbuf: qbuf of buffer 4 succeeded
[  130.020470] vb2-core: __qbuf_dmabuf: buffer for plane 0 changed
[  130.036833] vb2-core: vb2_core_qbuf: qbuf of buffer 5 succeeded
[  130.042802] func: cal_start_streaming, line: 1666
[  130.047527] func: cal_start_streaming, line: 1673
[  130.054363] func: cal_start_streaming, line: 1683
[  130.059121] func: cal_start_streaming, line: 1686
[  130.065188] func: cal_start_streaming, line: 1688
[  130.069972] func: cal_start_streaming, line: 1695
[  130.078449] func: cal_start_streaming, line: 1697
[  130.089043] func: csi2_phy_config,line: 1128,ctx->external_rate: 192000000, num_lanes: 2, ctx->fmt->bpp: 16
[  130.105119] func: cal_start_streaming, line: 1700
[  130.109844] ov5640_s_stream is running !!!
[  130.121057] func: ov5640_s_stream,temp: 0x0
[  130.129545] 0x3f0d-func: ov5640_s_stream,temp: 0x0
[  130.136037] 0x3f0c-func: ov5640_s_stream,temp: 0x0
[  130.142025] 0x3052-func: ov5640_s_stream,temp: 0x0
[  130.147192] 0x3213-func: ov5640_s_stream,temp: 0x0
[  130.153918] func: cal_start_streaming, line: 1708
[  130.451973] func: cal_start_streaming, line: 1710
[  130.456710] func: cal_start_streaming, line: 1714
[  130.466228] func: cal_start_streaming, line: 1716
[  130.473544] vb2-core: vb2_core_streamon: successful
[  130.478454] vb2-core: __vb2_wait_for_done_vb: will sleep waiting for buffers

[ 129.865746] cal-000: Fourcc format (0x56595559) not found.
[ 129.865761] cal-000: cal_calc_format_size: fourcc: UYVY size: 1920x1080 bpl:3840 img_size:4147200
[ 129.890439] cal-000: __subdev_set_format 1920x1080 code:2006
[ 129.890450] cal-000: cal_calc_format_size: fourcc: UYVY size: 1920x1080 bpl:3840 img_size:4147200
[ 129.892630] cal-000: nbuffers=6, size=4147200
[ 129.892645] vb2-core: __vb2_queue_alloc: allocated 6 buffers, 1 plane(s) each
[ 129.900163] vb2-core: __qbuf_dmabuf: buffer for plane 0 changed
[ 129.918002] vb2-core: vb2_core_qbuf: qbuf of buffer 0 succeeded
[ 129.926169] vb2-core: __qbuf_dmabuf: buffer for plane 0 changed
[ 129.943411] vb2-core: vb2_core_qbuf: qbuf of buffer 1 succeeded
[ 129.949373] vb2-core: __qbuf_dmabuf: buffer for plane 0 changed
[ 129.965899] vb2-core: vb2_core_qbuf: qbuf of buffer 2 succeeded
[ 129.971864] vb2-core: __qbuf_dmabuf: buffer for plane 0 changed
[ 129.992238] vb2-core: vb2_core_qbuf: qbuf of buffer 3 succeeded
[ 129.998205] vb2-core: __qbuf_dmabuf: buffer for plane 0 changed
[ 130.014506] vb2-core: vb2_core_qbuf: qbuf of buffer 4 succeeded
[ 130.020470] vb2-core: __qbuf_dmabuf: buffer for plane 0 changed
[ 130.036833] vb2-core: vb2_core_qbuf: qbuf of buffer 5 succeeded
[ 130.042802] func: cal_start_streaming, line: 1666
[ 130.047527] func: cal_start_streaming, line: 1673
[ 130.054363] func: cal_start_streaming, line: 1683
[ 130.059121] func: cal_start_streaming, line: 1686
[ 130.065182] cal-000: CAL_CSI2_CTX0(1) = 0x00000101
[ 130.065188] func: cal_start_streaming, line: 1688
[ 130.069917] cal-000: CAL_PIX_PROC(1) = 0x000d0015
[ 130.069923] cal-000: CAL_WR_DMA_CTRL(1) = 0x10e04304
[ 130.069930] cal-000: CAL_WR_DMA_OFST(1) = 0x00000f00
[ 130.069935] cal-000: CAL_WR_DMA_XSIZE(1) = 0x0f000000
[ 130.069941] cal-000: CAL_CTRL = 0xff1fe07e
[ 130.069947] cal-000: cy-0x310-CAL_CSI2_COMPLEXIO_IRQENABLE(1) = 0x5fffffff
[ 130.069952] cal-000: cy-0x318-CAL_CSI2_VC_IRQENABLE(1) = 0x3f3f3f3f
[ 130.069957] cal-000: cy-before-lane_config 0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.069963] cal-000: cy-after-lane_config 0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.069967] cal-000: CAL_CSI2_COMPLEXIO_CFG(1) = 0x00000321
[ 130.069972] func: cal_start_streaming, line: 1695
[ 130.078449] func: cal_start_streaming, line: 1697
[ 130.088988] cal-000: 757,cy-0x310-CAL_CSI2_COMPLEXIO_IRQENABLE(1) = 0x5fffffff
[ 130.088995] cal-000: 758,cy-0x318-CAL_CSI2_VC_IRQENABLE(1) = 0x3f3f3f3f
[ 130.089001] cal-000: 759,cy-before-phy_enable 0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.089018] cal-000: 762,cy-after-phy_enable 0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.089025] cal-000: CAL_CSI2_COMPLEXIO_CFG(1) = 0x40000321 De-assert Complex IO Reset
[ 130.089031] cal-000: 776,cy-0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.089036] cal-000: 777,cy-0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.089043] func: csi2_phy_config,line: 1128,ctx->external_rate: 192000000, num_lanes: 2, ctx->fmt->bpp: 16
[ 130.103916] cal-000: csi2_ddrclk_khz: 768000
[ 130.103922] cal-000: ths_term: 15 (0x0f)
[ 130.103927] cal-000: ths_settle: 84 (0x54)
[ 130.103933] cal-000: CSI2_0_REG0 = 0x01000f54
[ 130.103940] cal-000: CSI2_0_REG1 = 0xe002e10e
[ 130.103947] cal-000: 789,cy-0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.103952] cal-000: 790,cy-0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.103957] cal-000: CAL_CSI2_TIMING(1) = 0x00004197 Stop States
[ 130.103964] cal-000: 800,cy-0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.103969] cal-000: 801,cy-0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.103974] cal-000: CAL_CSI2_TIMING(1) = 0x0000c197 Force RXMODE
[ 130.105103] cal-000: 821,cy-0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.105108] cal-000: 822,cy-0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.105114] cal-000: CAL_CSI2_COMPLEXIO_CFG(1) = 0x4a000321 Powered UP
[ 130.105119] func: cal_start_streaming, line: 1700
[ 130.109844] ov5640_s_stream is running !!!
[ 130.121057] func: ov5640_s_stream,temp: 0x0
[ 130.129545] 0x3f0d-func: ov5640_s_stream,temp: 0x0
[ 130.136037] 0x3f0c-func: ov5640_s_stream,temp: 0x0
[ 130.142025] 0x3052-func: ov5640_s_stream,temp: 0x0
[ 130.147192] 0x3213-func: ov5640_s_stream,temp: 0x0
[ 130.153918] func: cal_start_streaming, line: 1708
[ 130.439419] cal-000: 851,cy-0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.439426] cal-000: 852,cy-0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.439433] cal-000: CAL_CSI2_COMPLEXIO_CFG(1) = 0x4a000321 Complex IO Reset Done (250) (timeout)
[ 130.451936] cal-000: 867,cy-0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.451944] cal-000: 868,cy-0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.451951] cal-000: CAL_CSI2_TIMING(1) = 0x0000c197 Stop State Reached (timeout)
[ 130.451957] cal-000: 874,cy-0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.451962] cal-000: 875,cy-0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.451968] cal-000: CSI2_0_REG1 = 0xc002e10e (Bit(31,28) should be set!)
[ 130.451973] func: cal_start_streaming, line: 1710
[ 130.456700] cal-000: 1712,cy-0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.456705] cal-000: 1713,cy-0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.456710] func: cal_start_streaming, line: 1714
[ 130.466228] func: cal_start_streaming, line: 1716
[ 130.473420] cal-000: 1717,cy-0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.473426] cal-000: 1718,cy-0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.473432] cal-000: cy-0x300-CAL_CSI2_PPI_CTRL(1) = 0x00000005
[ 130.473437] cal-000: cy-0x304-CAL_CSI2_COMPLEXIO_CFG(1) = 0x4a000321
[ 130.473442] cal-000: cy-0x308-CAL_CSI2_COMPLEXIO_IRQSTATUS(1) = 0x00000000
[ 130.473448] cal-000: cy-0x30c-CAL_CSI2_SHORT_PACKET(1) = 0x00000000
[ 130.473453] cal-000: cy-0x310-CAL_CSI2_COMPLEXIO_IRQENABLE(1) = 0x5fffffff
[ 130.473458] cal-000: cy-0x314-CAL_CSI2_TIMING(1) = 0x0000c197
[ 130.473463] cal-000: cy-0x318-CAL_CSI2_VC_IRQENABLE(1) = 0x3f3f3f3f
[ 130.473467] cal-000: cy-0x328-CAL_CSI2_VC_IRQSTATUS(1) = 0x00000000
[ 130.473472] cal-000: cy-0x330-CAL_CSI2_CTX0(1) = 0x00000101
[ 130.473477] cal-000: cy-0x334-CAL_CSI2_CTX1(1) = 0x00000000
[ 130.473482] cal-000: cy-0x338-CAL_CSI2_CTX2(1) = 0x00000000
[ 130.473486] cal-000: cy-0x33c-CAL_CSI2_CTX3(1) = 0x00000000
[ 130.473491] cal-000: cy-0x340-CAL_CSI2_CTX4(1) = 0x00000000
[ 130.473495] cal-000: cy-0x344-CAL_CSI2_CTX5(1) = 0x00000000
[ 130.473500] cal-000: cy-0x348-CAL_CSI2_CTX6(1) = 0x00000000
[ 130.473504] cal-000: cy-0x34c-CAL_CSI2_CTX7(1) = 0x00000000
[ 130.473509] cal-000: cy-0x350-CAL_CSI2_STATUS0(1) = 0x00000000
[ 130.473513] cal-000: cy-0x354-CAL_CSI2_STATUS1(1) = 0x00000000
[ 130.473517] cal-000: cy-0x358-CAL_CSI2_STATUS2(1) = 0x00000000
[ 130.473521] cal-000: cy-0x35c-CAL_CSI2_STATUS3(1) = 0x00000000
[ 130.473526] cal-000: cy-0x360-CAL_CSI2_STATUS4(1) = 0x00000000
[ 130.473530] cal-000: cy-0x364-CAL_CSI2_STATUS5(1) = 0x00000000
[ 130.473534] cal-000: cy-0x368-CAL_CSI2_STATUS6(1) = 0x00000000
[ 130.473538] cal-000: cy-0x36c-CAL_CSI2_STATUS7(1) = 0x00000000
[ 130.473544] vb2-core: vb2_core_streamon: successful
[ 130.478454] vb2-core: __vb2_wait_for_done_vb: will sleep waiting for buffers

I was enable all the interrupts,but i can't see any wrong interrupt status,and the irq is always zero.

root@am57xx-evm:~# ./irq.sh
370: 0 CBAR 119 Level cal
IPI3: 0 Function call interrupts

Here is my questions:

1.from this log,can i assume handshake success between the CSI2 D-PHY and the actual sensor ？

2.anyway can i debug this?

Thanks

over 6 years ago

0 Margarita Gashova over 6 years ago

TI__Guru* 80190 points

Hello,

Please refer the below guide there is debugging chapter:
processors.wiki.ti.com/.../Linux_Core_CAL_User's_Guide

and Troubleshooting chapter.

Hope this helps.

BR

0 yu chen over 6 years ago in reply to Margarita Gashova

Expert 1455 points

Hi,
Thanks for your reply,I have reviewed this link.
This link describes that no interruption occurred because the handshake failed or the camera did not generate data. At present, I can measure the data generated by the camera, but how to judge whether the handshake is successful? Is there a corresponding register value for debugging?

Thanks.

0 Margarita Gashova over 6 years ago in reply to yu chen

TI__Guru* 80190 points

Hello,

I would recommend you to check check this file:
ov5640.txt and ti-cal.txt under psdk/board-support/linux/Documentation/devicetree/bindings/media folder.
Please take a look into these thread also:
e2e.ti.com/.../571668
e2e.ti.com/.../738478

Hope this helps.

BR
Margarita

0 yu chen over 6 years ago in reply to Margarita Gashova

Expert 1455 points

Hi,Margarita

I would like to consult, about CAL_CSI2_COMPLEXIO_CFG_l[29] RESET_DONE, from the current register value, my ppi has been in the reset state, so no data is received.
CAL_CSI2_COMPLEXIO_CFG(1) = 0x4a000321 Complex IO Reset Done (250) (timeout)
At the same time, REG1[29:28] also reflects a problem, in csi2_phy_init->Force FORCERXMODE, register value jumps from
Cal-000: CSI2_0_REG1 = 0xe002e10e to 0xc002e10e (Bit(31,28) should be set!)

I want to ask, CAL_CSI2_COMPLEXIO_CFG_l[29] RESET_DONE is not set because Byte_clock is not received. So what is the general reason for the reception failure? Ctx->external_rate Does this clock frequency setting error have an effect?

Thanks.

0 yu chen over 6 years ago in reply to Margarita Gashova

Expert 1455 points

Hi,
Any update? We refer to the phy initialization process of the TRM manual, but the current phy is still not initialized successfully, as shown by the failure to successfully receive BYTECLOCK and jump out of the RESET state.

Thanks.

0 Margarita Gashova over 6 years ago in reply to yu chen

TI__Guru* 80190 points

Hello,

I am sorry for the delay.
Let me check.
Thank you!

BR
Margarita

0 yu chen over 6 years ago in reply to Margarita Gashova

Expert 1455 points

Hi,

Thanks.we can get the reset signal now.

Removed some descriptions about the two phys of the DRA71x in the driver, and after modifying the polarity of the pins, you can receive the reset signal.

Thanks.

0 Margarita Gashova over 6 years ago in reply to yu chen

TI__Guru* 80190 points

Hello,

I am glad that this issue is solved.

BR
Margarita

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Linux/AM5708: CSI2-camera can not get the interrupt/buffer