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Get the status of the display.#1036

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Merged
leonardocavagnis merged 3 commits intoarduino:mainfromdmazzella:patch-2
Mar 17, 2025
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10 changes: 10 additions & 0 deletionslibraries/Arduino_H7_Video/docs/api.md
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Expand Up@@ -14,6 +14,7 @@ The main class for managing the video controller and the display.
| `public ` [`Arduino_H7_Video`](#public-arduino_h7_videoint-width-int-height-h7displayshield-shield) | Construct a new Arduino_H7_Video object with the specified width, height, and display shield. |
| `public int` [`begin`](#public-int-begin) | Initialize the video controller and display. |
| `public void` [`end`](#public-void-end) | De-initialize the video controller and display. |
| `public bool` [`detect`](#public-bool-detect) | Checks if the display is connected. |
| `public int` [`width`](#public-int-width) | Get the width of the display. |
| `public int` [`height`](#public-int-height) | Get the height of the display. |
| `public bool` [`isRotated`](#public-bool-isrotated) | Check if the display is rotated. |
Expand DownExpand Up@@ -54,6 +55,15 @@ De-initialize the video controller and display.

---

### `public bool` [`detect`](#)`()`

Checks if the display is connected.

#### Returns
`bool`: True if the display is connected, False otherwis.

---

### `public int` [`width`](#)`()`

Get the width of the display.
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5 changes: 5 additions & 0 deletionslibraries/Arduino_H7_Video/src/Arduino_H7_Video.cpp
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Expand Up@@ -179,6 +179,11 @@ bool Arduino_H7_Video::isRotated() {
return _rotated;
}

bool Arduino_H7_Video::detect()
{
return (_shield->getStatus() > 0);
}

void Arduino_H7_Video::end() {
#ifdef HAS_ARDUINOGRAPHICS
ArduinoGraphics::end();
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7 changes: 7 additions & 0 deletionslibraries/Arduino_H7_Video/src/Arduino_H7_Video.h
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Expand Up@@ -106,6 +106,13 @@ class Arduino_H7_Video
*/
bool isRotated();

/**
* @brief Checks if the display is connected.
*
* @return true if the display is connected, false otherwise.
*/
bool detect();

#ifdef HAS_ARDUINOGRAPHICS
/**
* @brief Clear the display.
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10 changes: 10 additions & 0 deletionslibraries/Arduino_H7_Video/src/H7DisplayShield.cpp
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Expand Up@@ -18,6 +18,10 @@ int GigaDisplayShieldClass::getEdidMode(int h, int v) {
return EDID_MODE_480x800_60Hz;
}

int GigaDisplayShieldClass::getStatus() {
return 1; // TODO: Not implemented;
}

int USBCVideoClass::init(int edidmode) {
struct edid recognized_edid;
int err_code = 0;
Expand DownExpand Up@@ -57,5 +61,11 @@ int USBCVideoClass::getEdidMode(int h, int v) {
return edidmode;
}

int USBCVideoClass::getStatus() {
int detected = anx7625_get_hpd_event(0);

return detected;
}

GigaDisplayShieldClass GigaDisplayShield;
USBCVideoClass USBCVideo;
3 changes: 3 additions & 0 deletionslibraries/Arduino_H7_Video/src/H7DisplayShield.h
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Expand Up@@ -5,18 +5,21 @@ class H7DisplayShield {
public:
virtual int init(int edidmode) = 0;
virtual int getEdidMode(int h, int v);
virtual int getStatus();
};

class GigaDisplayShieldClass : public H7DisplayShield {
public:
int init(int edidmode);
int getEdidMode(int h, int v);
int getStatus();
};

class USBCVideoClass : public H7DisplayShield {
public:
int init(int edidmode);
int getEdidMode(int h, int v);
int getStatus();
};

extern GigaDisplayShieldClass GigaDisplayShield;
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5 changes: 5 additions & 0 deletionslibraries/Arduino_H7_Video/src/anx7625.cpp
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Expand Up@@ -630,6 +630,11 @@ bool anx7625_is_power_provider(uint8_t bus) {
}
}

int anx7625_get_hpd_event(uint8_t bus) {
int ret = anx7625_hpd_change_detect(bus);
return ret;
}

int i2c_writeb(uint8_t bus, uint8_t saddr, uint8_t offset, uint8_t val) {
char cmd[2];
cmd[0] = offset;
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1 change: 1 addition & 0 deletionslibraries/Arduino_H7_Video/src/anx7625.h
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Expand Up@@ -24,5 +24,6 @@ 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);
int anx7625_get_hpd_event(uint8_t bus);

#endif /* _ANX7625_H */
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