Cannot find devie's AP after init camera on ESP32S3

[AxelLin]

Cannot find devie's AP after init camera on ESP32S3

Test on esp-idf master, 5.2 branch and 5.1 branch.

If I call esp_camera_init() before starting AP.
The console log does not show any error but I usually cannot find the device's AP.
In most of my test, I just cannot find the device's AP.
Sometimes, I can find the device's AP but failed to join it:

I (43253) wifi:removing station <20:1e:88:5e:2b:3f> after unsuccessful auth/assoc, AID = 0
W (43254) wifi:rm mis
I (43254) wifi:new:<6,0>, old:<6,0>, ap:<6,0>, sta:<0,0>, prof:6

However, if I comment out the esp_camera_init() everything looks fine.

I also tested on ESP32 and ESP32 works, only ESP32S3 fails.
But on ESP32 the wifi is very slow after init camera.

[me-no-dev]

I would guess that this is connected to the previous issue, though I do not see a workaround from our end for this.

@igrr would someone from IDF/WiFi team look into this?

[me-no-dev]

@AxelLin can you try to run the camera on the other core? Let's see if maybe WiFi and Camera tasks starve each other

[AxelLin]

@AxelLin can you try to run the camera on the other core? Let's see if maybe WiFi and Camera tasks starve each other

I tried "CORE0", "CORE1" and "NO_AFFINITY" on v5.1.2-622-g47b44dfa71, the same issue.

[igrr]

@AxelLin could you please add some details about the hardware (board) you are using?

[AxelLin]

I tested on "Freenove ESP32-S3-WROOM Board".

[AxelLin]

I did another test on S3:

1. Start AP first
   I can find the AP, and I can join the AP.
2. Delay 30 sec
   It looks fine before calling esp_camera_init()
3. Call esp_camera_init()
   After calling esp_camera_init() the AP disappear and I got below log immediately:
   I (35486) wifi:station: 20:1e:88:5e:2b:3f leave, AID = 1, bss_flags is 658531, bss:0x3fcda26c
   I (35487) wifi:new:<6,0>, old:<6,0>, ap:<6,0>, sta:<0,0>, prof:6
   I (35490) wifi:idx:2, tid:0

Below is the log after calling esp_camera_init() in CONFIG_LOG_DEFAULT_LEVEL_VERBOSE=y build:

To init camera
I (37079) s3 ll_cam: DMA Channel=4
I (37083) cam_hal: cam init ok
D (37087) camera: Enabling XCLK output
D (37090) camera: Initializing SCCB
I (37094) sccb: pin_sda 4 pin_scl 5
I (37098) sccb: sccb_i2c_port=1
V (37102) intr_alloc: esp_intr_alloc_intrstatus (cpu 0): checking args
V (37108) intr_alloc: esp_intr_alloc_intrstatus (cpu 0): Args okay. Resulting flags 0xE
D (37117) intr_alloc: Connected src 43 to int 18 (cpu 0)
D (37122) camera: Searching for camera address
I (37136) camera: Detected camera at address=0x30
I (37144) camera: Detected OV2640 camera
D (37153) ov2640: OV2640 Attached
I (37156) camera: Camera PID=0x26 VER=0x42 MIDL=0x7f MIDH=0xa2
D (37163) camera: Doing SW reset of sensor
V (37215) wifi:tx process: alloc static tx buf, pb=0x3fcdbc04 l=54 hdr=0 data=54
I (37244) cam_hal: buffer_size: 16384, half_buffer_size: 1024, node_buffer_size: 1024, node_cnt: 16, total_cnt: 93
I (37244) cam_hal: Allocating 96000 Byte frame buffer in PSRAM
V (37251) intr_alloc: esp_intr_alloc_intrstatus (cpu 0): checking args
V (37257) intr_alloc: esp_intr_alloc_intrstatus (cpu 0): Args okay. Resulting flags 0x50E
D (37266) intr_alloc: Connected src 70 to int 19 (cpu 0)
V (37271) intr_alloc: esp_intr_alloc_intrstatus (cpu 0): checking args
V (37277) intr_alloc: esp_intr_alloc_intrstatus (cpu 0): Args okay. Resulting flags 0x50E
D (37286) intr_alloc: Connected src 24 to int 19 (cpu 0)
I (37291) cam_hal: cam config ok
D (37295) camera: Setting frame size to 800x600
I (37300) ov2640: Set PLL: clk_2x: 0, clk_div: 0, pclk_auto: 0, pclk_div: 8
Init camera done

V (38236) wifi:tx process: alloc static tx buf, pb=0x3fcd8490 l=54 hdr=0 data=54
D (38797) wifi:ap recv deauth/disassoc from sta 20:1e:88:5e:2b:3f, reason:980
I (38797) wifi:station: 20:1e:88:5e:2b:3f leave, AID = 1, bss_flags is 658531, bss:0x3fcdaf70
I (38801) wifi:new:<6,0>, old:<6,0>, ap:<6,0>, sta:<0,0>, prof:6
D (38807) wpa: ELOOP: wpa_auth_sta_deinit:508 called to remove timer handler=0x4204ae90, removed count=0
0x4204ae90: resend_eapol_handle at /home/axel/esp/esp-idf/components/wpa_supplicant/src/ap/wpa_auth.c:1177

D (38816) wpa: del sm, index=0 bitmap=0
D (38820) wpa: wpa_free_sta_sm: free eapol=0x3fcd5b38

I (38826) wifi:<ba-del>idx:2, tid:0
D (38829) event: running post WIFI_EVENT:15 with handler 0x42013ea0 and context 0x3fcb7ab0 on loop 0x3fcb1734

I (38839) net_utils: station 20:1e:88:5e:2b:3f leave, AID=1
D (38845) event: running post WIFI_EVENT:15 with handler 0x4200b800 and context 0x3fcd586c on loop 0x3fcb1734

D (38865) wifi:no bcast bss, send deauth: reason not authed(6)

[leeebo]

Hi @AxelLin I did the same test, call esp_camera_init() before starting AP. with esp32s3-eye hardware and ESP-IDF latest release/v5.2, both Camera and Wi-Fi work well for me. Would you please double check your hardware, whether there is a power supply or antenna problem ?

[Xiehanxin]

hi @AxelLin from the log we can see
D (38797) wifi:ap recv deauth/disassoc from sta 20:1e:88:5e:2b:3f, reason:980
it shows that the STA send the deauth/disassoc to AP actively. and the number 980 is got from the deauth/disassoc field.
the real reason might need a wireless package.

[AxelLin]

Would you please double check your hardware, whether there is a power supply or antenna problem ?

@leeebo
It works with STA + camera (v2.0.7) , so I think the power supply and the onboard antenna is fine.
(I also try power by adapter or power-bank, the same symptom).

Just wondering if you have a chance to test this board: https://github.com/Freenove/Freenove_ESP32_S3_WROOM_Board

[AxelLin]

hi @AxelLin from the log we can see D (38797) wifi:ap recv deauth/disassoc from sta 20:1e:88:5e:2b:3f, reason:980 it shows that the STA send the deauth/disassoc to AP actively.

@Xiehanxin

You seems imply the issue is beause the sta actively deauth/disassoc to AP.
But this symptom does not happen when camera is not inited.

Attached another detail log of verbose build:
I don't find any error message, only found below warning messages before deauth:
(ps. I don't observe below warngins if camera is not inited)
W (19059) wifi:[ADDBA]rx delba, code:37, delete tid:0
I (19060) wifi:idx:2, tid:0
W (19060) wifi:[ADDBA]rx delba, code:37, delete tid:0

Then the device got
wifi:ap recv deauth/disassoc from sta 20:1e:88:5e:2b:3f, reason:58

s3_esp32cam_ap.log

[AxelLin]

Hi @me-no-dev

FYI, #629 does not help for this issue.
I tried both LCD_CAM_ISR_IRAM_SAFE=y and LCD_CAM_ISR_IRAM_SAFE=n, no difference.
The AP still disappear after init camera.
Thanks anyway.

[me-no-dev]

@AxelLin that would mean that the issue is not in GDMA or IRAM ISR. It does fix the previous (STA) issue, so you should not feel a delay when WiFi starts.

[AxelLin]

I cannot reproduce this issue now after change test location.