max9286 get signal status

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已于 2025-03-26 15:44:58 修改 · 452 阅读

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于 2025-03-11 18:02:30 首次发布

max9286

frame sync

帧同步模式分内同步、外同步两类；内同步又有手动、半自动、自动三种，半自动、自动时FSYNC PERDIV设置帧同步周期，每检测到多少个VSYNC后发送帧同步，半自动模式检测master那一路，自动模式时检测VSYNC最慢达到的那一路。

Internal Frame Sync (FSYNCMODE = 0X)

External Frame Sync (FSYNCMODE = 1X)

mode

FSYNCMODE		default
00	Internally generate frame sync, FSYNC/GPI is high impedance	00
01	Internally generate frame sync, FSYNC/GPI outputs frame sync
10	Receive external frame sync from another MAX9286. FSYNC/ GPI is external frame sync input
11	Receive external frame sync from ECU. FSYNC/GPI is a general-purpose input

method

FSYNCMETH	when FSYNCMODE = 0X	default
00	Internal frame sync uses manual mode
01	Internal frames sync uses semi-automatic mode
1x	Internal frame sync uses automatic mode	10

log

grep "status change into" *.log
grep -E "CameraSourceProgress workingThread|CameraSourceProgress1Ch workingThread" *.log

I2C

[    0.553150](2)[1:swapper/0][I2C]id: 0,freq:400000,div:5,ch_offset:0x0,offset_dma:0x0,offset_ccu:0x0
[    0.553776](2)[1:swapper/0][I2C]id: 1,freq:100000,div:5,ch_offset:0x0,offset_dma:0x0,offset_ccu:0x0
[    0.555925](2)[1:swapper/0][I2C]id: 2,freq:400000,div:5,ch_offset:0x100,offset_dma:0x0,offset_ccu:0x200
[    0.556971](2)[1:swapper/0][I2C]id: 3,freq:100000,div:5,ch_offset:0x100,offset_dma:0x0,offset_ccu:0x0
[    0.557453](2)[1:swapper/0][I2C]id: 4,freq:400000,div:5,ch_offset:0x100,offset_dma:0x0,offset_ccu:0x200
[    0.557740](2)[1:swapper/0][I2C]id: 5,freq:400000,div:5,ch_offset:0x0,offset_dma:0x0,offset_ccu:0x0
[    0.558477](2)[1:swapper/0][I2C]id: 6,freq:400000,div:5,ch_offset:0x100,offset_dma:0x0,offset_ccu:0x200

SIGNAL

	kernel-4.9		ICameraStream
0	SIGNAL_IDLE		SIGNAL_STATUS_NONE	0
1	SIGNAL_LOST	MIPIVC_SIGNAL_LOST	SIGNAL_STATUS_LOST	2
2	SIGNAL_READY	MIPIVC_SIGNAL_READY	SIGNAL_STATUS_READY	1

drivers/misc/mediatek/imgsensor/inc/kd_imgsensor_define.h

  85 typedef enum {
  86     SIGNAL_IDLE,
  87     SIGNAL_LOST,
  88     SIGNAL_READY,
  89     SIGNAL_STABLE,
  90     SIGNAL_MAX
  91 } SIGNAL_STATUS;

SIGNAL_STATUS

vendor/autochips/proprietary/hardware/videoin

ICameraStream

interface/camerasource/include/ICameraSource.h

 70 class ICameraStream
 71 {
 72 public:
 73     typedef enum
 74     {
 75         SIGNAL_STATUS_NONE = 0,
 76         SIGNAL_STATUS_READY,
 77         SIGNAL_STATUS_LOST,
 78         SIGNAL_STATUS_MAX,
 79     } SIGNAL_STATUS_ENUM;

MIPIVC_SIGNAL

libs/camerasource/inc/CameraSourceBase.h

 52 #define MIPIVC_SIGNAL_LOST (1)
 53 #define MIPIVC_SIGNAL_READY (2)

onEvent

215         if(isFirstGetStatus || _info.signalStatus != signalStatus) {
216             switch(_info.signalStatus) {
217             case MIPIVC_SIGNAL_LOST:
218                 mCurStatus = ICameraStream::SIGNAL_STATUS_LOST;
219                 break;
220
221             case MIPIVC_SIGNAL_READY:
222                 mCurStatus = ICameraStream::SIGNAL_STATUS_READY;
223                 break;
224
225             default:
226                 mCurStatus = ICameraStream::SIGNAL_STATUS_NONE;
227                 _LOGW("mipivcInst->getSensorInfo get invalid signalStatus : %d", _info.signalStatus);
228                 break;
229             }
230
231             if(mCallback) {
232                 mCallback->onEvent(IEventCallback::CAM_SIGNAL_CHANGED, camCh, mCurStatus);
233             }
234
235             signalStatus = _info.signalStatus;
236             isFirstGetStatus = false;
237             _LOGI("camera ch(%d) status change into %d", camCh, mCurStatus);
238         }

max9286_yuv_sensor.c

drivers/misc/mediatek/imgsensor/src/common/v1/max9286_yuv/max9286_yuv_sensor.c

i2c_speed

71 static int max9286_i2c_speed = 400;

max9671_read

120 static kal_uint16 max96701_read(int index, kal_uint32 addr)
121 {
1

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