Renamed main folder to firmware

firmware/atmel_softpack_libraries/usb/device/hid-keyboard/HIDDKeyboardInputReport.c

@@ -0,0 +1,147 @@
+/* ----------------------------------------------------------------------------
+ *         ATMEL Microcontroller Software Support
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2008, Atmel Corporation
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the disclaimer below.
+ *
+ * Atmel's name may not be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
+ * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ----------------------------------------------------------------------------
+ */
+
+/** \file
+ *  Implementation of the HIDDKeyboardInputReport class.
+ */
+
+/** \addtogroup usbd_hid_key
+ *@{
+ */
+
+/*------------------------------------------------------------------------------
+ *         Headers
+ *------------------------------------------------------------------------------*/
+
+#include <HIDDKeyboard.h>
+#include <USBLib_Trace.h>
+
+/*------------------------------------------------------------------------------
+ *         Exported functions
+ *------------------------------------------------------------------------------*/
+
+/**
+ * Initializes a keyboard input report instance.
+ * \param report Pointer to a HIDDKeyboardInputReport instance.
+ */
+void HIDDKeyboardInputReport_Initialize(HIDDKeyboardInputReport *report)
+{
+    uint32_t i;
+
+    report->bmModifierKeys = 0;
+    for (i = 0; i < HIDDKeyboardInputReport_MAXKEYPRESSES; i++) {
+
+        report->pressedKeys[i] = 0;
+    }
+}
+
+/**
+ * Reports a standard key as being pressed.
+ * \param report Pointer to a HIDDKeyboardInputReport instance.
+ * \param key Key code of the standard key.
+ */
+void HIDDKeyboardInputReport_PressStandardKey(HIDDKeyboardInputReport *report,
+                                              uint8_t key)
+{
+    /* Find first available slot */
+    uint32_t i = 0;
+    uint8_t found = 0;
+    while ((i < HIDDKeyboardInputReport_MAXKEYPRESSES) && !found) {
+
+        /* Free slot: no key referenced (code = 0) or ErrorRollOver */
+        if ((report->pressedKeys[i] == 0)
+            || (report->pressedKeys[i] == HIDKeypad_ERRORROLLOVER)) {
+
+            found = 1;
+            report->pressedKeys[i] = key;
+        }
+
+        i++;
+    }
+
+    /* Report ErrorRollOver in all fields if too many keys are pressed */
+    if (!found) {
+
+        for (i=0; i < HIDDKeyboardInputReport_MAXKEYPRESSES; i++) {
+
+            report->pressedKeys[i] = HIDKeypad_ERRORROLLOVER;
+        }
+    }
+}
+
+/**
+ * Reports a standard key as not being pressed anymore.
+ * \param report Pointer to a HIDDKeyboardInputReport instance.
+ * \param key Key code of the standard key
+ */
+void HIDDKeyboardInputReport_ReleaseStandardKey(HIDDKeyboardInputReport *report,
+                                                uint8_t key)
+{
+    /* Look for key in array */
+    uint32_t i = 0;
+    uint8_t found = 0;
+    while ((i < HIDDKeyboardInputReport_MAXKEYPRESSES) && !found) {
+
+        if (report->pressedKeys[i] == key) {
+
+            found = 1;
+            report->pressedKeys[i] = 0;
+        }
+
+        i++;
+    }
+}
+
+/**
+ * Reports a modifier key as being currently pressed.
+ * \param report Pointer to a HIDDKeyboardInputReport instance.
+ * \param key Key code of the modifier key.
+ */
+void HIDDKeyboardInputReport_PressModifierKey(HIDDKeyboardInputReport *report,
+                                              uint8_t key)
+{
+    /* Set corresponding bit */
+    uint8_t bit = key - HIDDKeyboardDescriptors_FIRSTMODIFIERKEY;
+    report->bmModifierKeys |= 1 << bit;
+}
+
+/**
+ * Reports a modifier key as not being pressed anymore.
+ * \param report Pointer to a HIDDKeyboardInputReport instance.
+ * \param key Key code of the modifier key.
+ */
+void HIDDKeyboardInputReport_ReleaseModifierKey(HIDDKeyboardInputReport *report,
+                                                uint8_t key)
+{
+    /* Clear corresponding bit */
+    uint8_t bit = key - HIDDKeyboardDescriptors_FIRSTMODIFIERKEY;
+    report->bmModifierKeys &= ~(1 << bit);
+}
+
+/**@}*/