1 files changed, 201 insertions, 0 deletions

diff --git a/lib/usbhost/USB_Host_Shield_2.0/hidboot.cpp b/lib/usbhost/USB_Host_Shield_2.0/hidboot.cpp
new file mode 100644
index 000000000..280b2f978
--- /dev/null
+++ b/lib/usbhost/USB_Host_Shield_2.0/hidboot.cpp
@@ -0,0 +1,201 @@
+/* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved.
+
+This software may be distributed and modified under the terms of the GNU
+General Public License version 2 (GPL2) as published by the Free Software
+Foundation and appearing in the file GPL2.TXT included in the packaging of
+this file. Please note that GPL2 Section 2[b] requires that all works based
+on this software must also be made publicly available under the terms of
+the GPL2 ("Copyleft").
+
+Contact information
+-------------------
+
+Circuits At Home, LTD
+Web      :  http://www.circuitsathome.com
+e-mail   :  support@circuitsathome.com
+ */
+#include "hidboot.h"
+
+void MouseReportParser::Parse(HID *hid, bool is_rpt_id, uint8_t len, uint8_t *buf) {
+        MOUSEINFO *pmi = (MOUSEINFO*)buf;
+        // Future:
+        // bool event;
+
+#if 0
+        if (prevState.mouseInfo.bmLeftButton == 0 && pmi->bmLeftButton == 1)
+                OnLeftButtonDown(pmi);
+
+        if (prevState.mouseInfo.bmLeftButton == 1 && pmi->bmLeftButton == 0)
+                OnLeftButtonUp(pmi);
+
+        if (prevState.mouseInfo.bmRightButton == 0 && pmi->bmRightButton == 1)
+                OnRightButtonDown(pmi);
+
+        if (prevState.mouseInfo.bmRightButton == 1 && pmi->bmRightButton == 0)
+                OnRightButtonUp(pmi);
+
+        if (prevState.mouseInfo.bmMiddleButton == 0 && pmi->bmMiddleButton == 1)
+                OnMiddleButtonDown(pmi);
+
+        if (prevState.mouseInfo.bmMiddleButton == 1 && pmi->bmMiddleButton == 0)
+                OnMiddleButtonUp(pmi);
+
+        if (prevState.mouseInfo.dX != pmi->dX || prevState.mouseInfo.dY != pmi->dY)
+                OnMouseMove(pmi);
+
+        if (len > sizeof (MOUSEINFO))
+                for (uint8_t i = 0; i<sizeof (MOUSEINFO); i++)
+                        prevState.bInfo[i] = buf[i];
+#else
+        //
+        // Optimization idea:
+        //
+        // 1: Don't pass the structure on every event. Buttons would not need it.
+        // 2: Only pass x/y values in the movement routine.
+        //
+        // These two changes (with the ones I have made) will save extra flash.
+        // The only "bad" thing is that it could break old code.
+        //
+        // Future thoughts:
+        //
+        // The extra space gained can be used for a generic mouse event that can be called
+        // when there are _ANY_ changes. This one you _MAY_ want to pass everything, however the
+        // sketch could already have noted these facts to support drag/drop scroll wheel stuff, etc.
+        //
+
+        // Why do we need to pass the structure for buttons?
+        // The function call not enough of a hint for what is happening?
+        if(prevState.mouseInfo.bmLeftButton != pmi->bmLeftButton ) {
+                if(pmi->bmLeftButton) {
+                        OnLeftButtonDown(pmi);
+                } else {
+                        OnLeftButtonUp(pmi);
+                }
+                // Future:
+                // event = true;
+        }
+
+        if(prevState.mouseInfo.bmRightButton != pmi->bmRightButton) {
+                if(pmi->bmRightButton) {
+                        OnRightButtonDown(pmi);
+                } else {
+                        OnRightButtonUp(pmi);
+                }
+                // Future:
+                // event = true;
+        }
+
+        if(prevState.mouseInfo.bmMiddleButton != pmi->bmMiddleButton) {
+                if(pmi->bmMiddleButton) {
+                        OnMiddleButtonDown(pmi);
+                } else {
+                        OnMiddleButtonUp(pmi);
+                }
+                // Future:
+                // event = true;
+        }
+
+        //
+        // Scroll wheel(s), are not part of the spec, but we could support it.
+        // Logitech wireless keyboard and mouse combo reports scroll wheel in byte 4
+        // We wouldn't even need to save this information.
+        //if(len > 3) {
+        //}
+        //
+
+        // Mice only report motion when they actually move!
+        // Why not just pass the x/y values to simplify things??
+        if(pmi->dX || pmi->dY) {
+                OnMouseMove(pmi);
+                // Future:
+                // event = true;
+        }
+
+        //
+        // Future:
+        // Provide a callback that operates on the gathered events from above.
+        //
+        // if(event) OnMouse();
+        //
+
+        // Only the first byte matters (buttons). We do NOT need to save position info.
+        prevState.bInfo[0] = buf[0];
+#endif
+
+};
+
+void KeyboardReportParser::Parse(HID *hid, bool is_rpt_id, uint8_t len, uint8_t *buf) {
+        // On error - return
+        if (buf[2] == 1)
+                return;
+
+        //KBDINFO       *pki = (KBDINFO*)buf;
+
+        // provide event for changed control key state
+        if (prevState.bInfo[0x00] != buf[0x00]) {
+                OnControlKeysChanged(prevState.bInfo[0x00], buf[0x00]);
+        }
+
+        for (uint8_t i = 2; i < 8; i++) {
+                bool down = false;
+                bool up = false;
+
+                for (uint8_t j = 2; j < 8; j++) {
+                        if (buf[i] == prevState.bInfo[j] && buf[i] != 1)
+                                down = true;
+                        if (buf[j] == prevState.bInfo[i] && prevState.bInfo[i] != 1)
+                                up = true;
+                }
+                if (!down) {
+                        HandleLockingKeys(hid, buf[i]);
+                        OnKeyDown(*buf, buf[i]);
+                }
+                if (!up)
+                        OnKeyUp(prevState.bInfo[0], prevState.bInfo[i]);
+        }
+        for (uint8_t i = 0; i < 8; i++)
+                prevState.bInfo[i] = buf[i];
+};
+
+const uint8_t KeyboardReportParser::numKeys[10] PROGMEM = {'!', '@', '#', '$', '%', '^', '&', '*', '(', ')'};
+const uint8_t KeyboardReportParser::symKeysUp[12] PROGMEM = {'_', '+', '{', '}', '|', '~', ':', '"', '~', '<', '>', '?'};
+const uint8_t KeyboardReportParser::symKeysLo[12] PROGMEM = {'-', '=', '[', ']', '\\', ' ', ';', '\'', '`', ',', '.', '/'};
+const uint8_t KeyboardReportParser::padKeys[5] PROGMEM = {'/', '*', '-', '+', 0x13};
+
+uint8_t KeyboardReportParser::OemToAscii(uint8_t mod, uint8_t key) {
+        uint8_t shift = (mod & 0x22);
+
+        // [a-z]
+        if (VALUE_WITHIN(key, 0x04, 0x1d)) {
+                // Upper case letters
+                if ((kbdLockingKeys.kbdLeds.bmCapsLock == 0 && shift) ||
+                        (kbdLockingKeys.kbdLeds.bmCapsLock == 1 && shift == 0))
+                        return (key - 4 + 'A');
+
+                        // Lower case letters
+                else
+                        return (key - 4 + 'a');
+        }// Numbers
+        else if (VALUE_WITHIN(key, 0x1e, 0x27)) {
+                if (shift)
+                        return ((uint8_t)pgm_read_byte(&getNumKeys()[key - 0x1e]));
+                else
+                        return ((key == UHS_HID_BOOT_KEY_ZERO) ? '0' : key - 0x1e + '1');
+        }// Keypad Numbers
+        else if(VALUE_WITHIN(key, 0x59, 0x61)) {
+                if(kbdLockingKeys.kbdLeds.bmNumLock == 1)
+                        return (key - 0x59 + '1');
+        } else if(VALUE_WITHIN(key, 0x2d, 0x38))
+                return ((shift) ? (uint8_t)pgm_read_byte(&getSymKeysUp()[key - 0x2d]) : (uint8_t)pgm_read_byte(&getSymKeysLo()[key - 0x2d]));
+        else if(VALUE_WITHIN(key, 0x54, 0x58))
+                return (uint8_t)pgm_read_byte(&getPadKeys()[key - 0x54]);
+        else {
+                switch(key) {
+                        case UHS_HID_BOOT_KEY_SPACE: return (0x20);
+                        case UHS_HID_BOOT_KEY_ENTER: return (0x13);
+                        case UHS_HID_BOOT_KEY_ZERO2: return ((kbdLockingKeys.kbdLeds.bmNumLock == 1) ? '0': 0);
+                        case UHS_HID_BOOT_KEY_PERIOD: return ((kbdLockingKeys.kbdLeds.bmNumLock == 1) ? '.': 0);
+                }
+        }
+        return ( 0);
+}