CamX ISP Debug指南---CamX ISP Hardware Event日志分析
要分析高通ISP Hardware Event（IRQ）的日志，首先要打开ISP Debug log。
打开ISP的Debug log
adb shell "echo 0x8 > /sys/module/camera/parameters/debug_mdl"
ISP Hardware Event Log
Log搜索Pattern：
logcat -b kernel |grep -iE "__cam_isp_ctx_handle_irq_in_activated.*Enter"
Log输出：
10-09 06:05:15.083 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 1
10-09 06:05:15.083 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 2
10-09 06:05:15.099 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 3
10-09 06:05:15.104 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 5
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 5
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 5
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 4
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 5
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 5
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 5
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 5
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 5
10-09 06:05:15.155 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 1
10-09 06:05:15.171 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[SOF], evt id 3
10-09 06:05:15.186 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[APPLIED], evt id 4
10-09 06:05:15.226 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[APPLIED], evt id 1
10-09 06:05:15.226 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[APPLIED], evt id 2
10-09 06:05:15.242 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 3
Event ID定义在techpack/camera/drivers/cam_isp/isp_hw_mgr/include/cam_isp_hw_mgr_intf.h，具体如下:
/**
* enum cam_isp_hw_event_type - Collection of the ISP hardware events
*/
enum cam_isp_hw_event_type {
CAM_ISP_HW_EVENT_ERROR, // 0
CAM_ISP_HW_EVENT_SOF, // 1
CAM_ISP_HW_EVENT_REG_UPDATE, // 2
CAM_ISP_HW_EVENT_EPOCH, // 3
CAM_ISP_HW_EVENT_EOF, // 4
CAM_ISP_HW_EVENT_DONE, // 5
CAM_ISP_HW_EVENT_MAX // 6
};
ISP Buffer Done Log
以TFE为例，每个Output port 都会有Buffer Done Event发生，定义在techpack/camera/include/uapi/camera/media/cam_isp_tfe.h，Output port resource ID具体如下：
/* TFE output port resource id number */
#define CAM_ISP_TFE_OUT_RES_BASE 0x1
#define CAM_ISP_TFE_OUT_RES_FULL (CAM_ISP_TFE_OUT_RES_BASE + 0) // 0x1
#define CAM_ISP_TFE_OUT_RES_RAW_DUMP (CAM_ISP_TFE_OUT_RES_BASE + 1) // 0x2
#define CAM_ISP_TFE_OUT_RES_PDAF (CAM_ISP_TFE_OUT_RES_BASE + 2) // 0x3
#define CAM_ISP_TFE_OUT_RES_RDI_0 (CAM_ISP_TFE_OUT_RES_BASE + 3) // 0x4
#define CAM_ISP_TFE_OUT_RES_RDI_1 (CAM_ISP_TFE_OUT_RES_BASE + 4) // 0x5
#define CAM_ISP_TFE_OUT_RES_RDI_2 (CAM_ISP_TFE_OUT_RES_BASE + 5) // 0x6
#define CAM_ISP_TFE_OUT_RES_STATS_HDR_BE (CAM_ISP_TFE_OUT_RES_BASE + 6) // 0x7
#define CAM_ISP_TFE_OUT_RES_STATS_HDR_BHIST (CAM_ISP_TFE_OUT_RES_BASE + 7) // 0x8
#define CAM_ISP_TFE_OUT_RES_STATS_TL_BG (CAM_ISP_TFE_OUT_RES_BASE + 8) // 0x9
#define CAM_ISP_TFE_OUT_RES_STATS_BF (CAM_ISP_TFE_OUT_RES_BASE + 9) // 0xa
#define CAM_ISP_TFE_OUT_RES_STATS_AWB_BG (CAM_ISP_TFE_OUT_RES_BASE + 10) // 0xb
#define CAM_ISP_TFE_OUT_RES_MAX (CAM_ISP_TFE_OUT_RES_BASE + 11) // 0xc
Log搜索 Pattern：
logcat -b kernel |grep -iE "__cam_isp_ctx_handle_irq_in_activated.*evt id 5|Buf done for out_res"
Log输出：
10-09 06:05:15.104 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 5
10-09 06:05:15.104 0 0 I CAM_DBG : CAM-ISP: cam_tfe_hw_mgr_handle_hw_buf_done: 5692: Buf done for out_res->res_id: 0xa
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 5
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: cam_tfe_hw_mgr_handle_hw_buf_done: 5692: Buf done for out_res->res_id: 0x7
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 5
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: cam_tfe_hw_mgr_handle_hw_buf_done: 5692: Buf done for out_res->res_id: 0xb
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 5
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: cam_tfe_hw_mgr_handle_hw_buf_done: 5692: Buf done for out_res->res_id: 0x1
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 5
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: cam_tfe_hw_mgr_handle_hw_buf_done: 5692: Buf done for out_res->res_id: 0x2
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 5
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: cam_tfe_hw_mgr_handle_hw_buf_done: 5692: Buf done for out_res->res_id: 0x5
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 5
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: cam_tfe_hw_mgr_handle_hw_buf_done: 5692: Buf done for out_res->res_id: 0x9
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 5
10-09 06:05:15.115 0 0 I CAM_DBG : CAM-ISP: cam_tfe_hw_mgr_handle_hw_buf_done: 5692: Buf done for out_res->res_id: 0x8
10-09 06:05:15.247 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[APPLIED], evt id 5
ISP SOF Log
Sensor送给ISP的每帧数据会有一个SOF和一个EOF与之对应。
Log搜索 Pattern：
logcat -b kernel |grep -iE "__cam_isp_ctx_handle_irq_in_activated.*evt id 1|Notify CRM SOF frame"
Log输出：
10-09 06:05:15.083 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 1
10-09 06:05:15.099 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_notify_sof_in_activated_state: 1958: Notify CRM SOF frame 1 ctx 2
10-09 06:05:15.155 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[EPOCH], evt id 1
10-09 06:05:15.171 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_notify_sof_in_activated_state: 1958: Notify CRM SOF frame 2 ctx 2
10-09 06:05:15.226 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[APPLIED], evt id 1
10-09 06:05:15.242 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_notify_sof_in_activated_state: 1958: Notify CRM SOF frame 3 ctx 2
10-09 06:05:15.298 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[APPLIED], evt id 1
10-09 06:05:15.313 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_notify_sof_in_activated_state: 1958: Notify CRM SOF frame 4 ctx 2
10-09 06:05:15.369 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[APPLIED], evt id 1
10-09 06:05:15.385 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_notify_sof_in_activated_state: 1958: Notify CRM SOF frame 5 ctx 2
10-09 06:05:15.441 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[APPLIED], evt id 1
10-09 06:05:15.456 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_notify_sof_in_activated_state: 1958: Notify CRM SOF frame 6 ctx 2
10-09 06:05:15.512 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[APPLIED], evt id 1
10-09 06:05:15.528 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_notify_sof_in_activated_state: 1958: Notify CRM SOF frame 7 ctx 2
10-09 06:05:15.583 0 0 I CAM_DBG : CAM-ISP: __cam_isp_ctx_handle_irq_in_activated: 5984: Enter: State 5, Substate[APPLIED], evt id 1