diff --git a/libraries/Arduino_H7_Video/src/Arduino_H7_Video.cpp b/libraries/Arduino_H7_Video/src/Arduino_H7_Video.cpp
index 7f4b9570e..23e08b8ee 100644
--- a/libraries/Arduino_H7_Video/src/Arduino_H7_Video.cpp
+++ b/libraries/Arduino_H7_Video/src/Arduino_H7_Video.cpp
@@ -95,7 +95,10 @@ int Arduino_H7_Video::begin() {
#endif
/* Video controller/bridge init */
- _shield->init(_edidMode);
+ int err_code = _shield->init(_edidMode);
+ if (err_code < 0) {
+ return 3; /* Video controller fail init */
+ }
#if __has_include("lvgl.h")
/* Initiliaze LVGL library */
diff --git a/libraries/Arduino_H7_Video/src/H7DisplayShield.cpp b/libraries/Arduino_H7_Video/src/H7DisplayShield.cpp
index 82356a638..e045f5abe 100644
--- a/libraries/Arduino_H7_Video/src/H7DisplayShield.cpp
+++ b/libraries/Arduino_H7_Video/src/H7DisplayShield.cpp
@@ -31,13 +31,22 @@ int USBCVideoClass::init(int edidmode) {
}
//Checking HDMI plug event
- anx7625_wait_hpd_event(0);
+ err_code = anx7625_wait_hpd_event(0);
+ if(err_code < 0) {
+ return err_code;
+ }
//Read EDID
- anx7625_dp_get_edid(0, &recognized_edid);
+ err_code = anx7625_dp_get_edid(0, &recognized_edid);
+ if(err_code < 0) {
+ return err_code;
+ }
//DSI Configuration
- anx7625_dp_start(0, &recognized_edid, (enum edid_modes) edidmode);
+ err_code = anx7625_dp_start(0, &recognized_edid, (enum edid_modes) edidmode);
+ if(err_code < 0) {
+ return err_code;
+ }
return 0;
}
diff --git a/libraries/Arduino_H7_Video/src/anx7625.cpp b/libraries/Arduino_H7_Video/src/anx7625.cpp
index 552da163f..5f06e96c7 100644
--- a/libraries/Arduino_H7_Video/src/anx7625.cpp
+++ b/libraries/Arduino_H7_Video/src/anx7625.cpp
@@ -520,15 +520,21 @@ int anx7625_init(uint8_t bus) {
return 0;
}
-void anx7625_wait_hpd_event(uint8_t bus) {
+int anx7625_wait_hpd_event(uint8_t bus) {
ANXINFO("Waiting for HDMI hot plug event...\n");
-
- while (1) {
+
+ int retry_hpd_change = 10000;
+ while (--retry_hpd_change) {
mdelay(10);
int detected = anx7625_hpd_change_detect(bus);
- if (detected == 1)
- break;
+ if (detected < 0)
+ return -1;
+ if (detected > 0)
+ return 0;
}
+
+ ANXERROR("Timed out to detect HPD change on bus %d.\n", bus);
+ return -1;
}
int anx7625_get_cc_status(uint8_t bus, uint8_t *cc_status) {
diff --git a/libraries/Arduino_H7_Video/src/anx7625.h b/libraries/Arduino_H7_Video/src/anx7625.h
index a1ae467a9..e6f8de7f2 100644
--- a/libraries/Arduino_H7_Video/src/anx7625.h
+++ b/libraries/Arduino_H7_Video/src/anx7625.h
@@ -20,7 +20,7 @@ extern "C" {
int anx7625_dp_start(uint8_t bus, const struct edid *edid, enum edid_modes mode = EDID_MODE_AUTO);
int anx7625_dp_get_edid(uint8_t bus, struct edid *out);
int anx7625_init(uint8_t bus);
-void anx7625_wait_hpd_event(uint8_t bus);
+int anx7625_wait_hpd_event(uint8_t bus);
int anx7625_get_cc_status(uint8_t bus, uint8_t *cc_status);
int anx7625_read_system_status(uint8_t bus, uint8_t *sys_status);
bool anx7625_is_power_provider(uint8_t bus);
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