hid: add functions for getting the state of the home, sleep and captu…

…re buttons from shmem
switchbrew · Jun 26, 2024 · 69b94f0 · 69b94f0
1 parent 0fcf131
commit 69b94f0
Show file tree

Hide file tree

Showing 2 changed files with 69 additions and 0 deletions.
diff --git a/nx/include/switch/services/hid.h b/nx/include/switch/services/hid.h
@@ -1539,6 +1539,48 @@ NX_CONSTEXPR bool hidKeyboardStateGetKey(const HidKeyboardState *state, HidKeybo
 
 ///@}
 
+///@name HomeButton
+///@{
+
+/**
+ * @brief Gets \ref HidHomeButtonState.
+ * @note Home button shmem must be activated with \ref hidsysActivateHomeButton
+ * @param[out] states Output array of \ref HidHomeButtonState.
+ * @param[in] count Size of the states array in entries.
+ * @return Total output entries.
+ */
+size_t hidGetHomeButtonStates(HidHomeButtonState *states, size_t count);
+
+///@}
+
+///@name SleepButton
+///@{
+
+/**
+ * @brief Gets \ref HidSleepButtonState.
+ * @note Sleep button shmem must be activated with \ref hidsysActivateSleepButton
+ * @param[out] states Output array of \ref HidSleepButtonState.
+ * @param[in] count Size of the states array in entries.
+ * @return Total output entries.
+ */
+size_t hidGetSleepButtonStates(HidSleepButtonState *states, size_t count);
+
+///@}
+
+///@name CaptureButton
+///@{
+
+/**
+ * @brief Gets \ref HidCaptureButtonState.
+ * @note Capture button shmem must be activated with \ref hidsysActivateCaptureButton
+ * @param[out] states Output array of \ref HidCaptureButtonState.
+ * @param[in] count Size of the states array in entries.
+ * @return Total output entries.
+ */
+size_t hidGetCaptureButtonStates(HidCaptureButtonState *states, size_t count);
+
+///@}
+
 ///@name Npad
 ///@{
 

diff --git a/nx/source/services/hid.c b/nx/source/services/hid.c
@@ -275,6 +275,33 @@ size_t hidGetKeyboardStates(HidKeyboardState *states, size_t count) {
     return total;
 }
 
+size_t hidGetHomeButtonStates(HidHomeButtonState *states, size_t count) {
+    HidSharedMemory *sharedmem = (HidSharedMemory*)hidGetSharedmemAddr();
+    if (sharedmem == NULL)
+        diagAbortWithResult(MAKERESULT(Module_Libnx, LibnxError_NotInitialized));
+
+    size_t total = _hidGetStates(&sharedmem->home_button.lifo.header, sharedmem->home_button.lifo.storage, 17, offsetof(HidHomeButtonStateAtomicStorage,state), offsetof(HidHomeButtonState,sampling_number), states, sizeof(HidHomeButtonState), count);
+    return total;
+}
+
+size_t hidGetSleepButtonStates(HidSleepButtonState *states, size_t count) {
+    HidSharedMemory *sharedmem = (HidSharedMemory*)hidGetSharedmemAddr();
+    if (sharedmem == NULL)
+        diagAbortWithResult(MAKERESULT(Module_Libnx, LibnxError_NotInitialized));
+
+    size_t total = _hidGetStates(&sharedmem->sleep_button.lifo.header, sharedmem->sleep_button.lifo.storage, 17, offsetof(HidSleepButtonStateAtomicStorage,state), offsetof(HidSleepButtonState,sampling_number), states, sizeof(HidSleepButtonState), count);
+    return total;
+}
+
+size_t hidGetCaptureButtonStates(HidCaptureButtonState *states, size_t count) {
+    HidSharedMemory *sharedmem = (HidSharedMemory*)hidGetSharedmemAddr();
+    if (sharedmem == NULL)
+        diagAbortWithResult(MAKERESULT(Module_Libnx, LibnxError_NotInitialized));
+
+    size_t total = _hidGetStates(&sharedmem->capture_button.lifo.header, sharedmem->capture_button.lifo.storage, 17, offsetof(HidCaptureButtonStateAtomicStorage,state), offsetof(HidCaptureButtonState,sampling_number), states, sizeof(HidCaptureButtonState), count);
+    return total;
+}
+
 void hidInitializeNpad(void) {
     Result rc = _hidActivateNpad();
     if (R_FAILED(rc)) diagAbortWithResult(rc);