[136] | 1 | /* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved.
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| 2 |
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| 3 | This software may be distributed and modified under the terms of the GNU
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| 4 | General Public License version 2 (GPL2) as published by the Free Software
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| 5 | Foundation and appearing in the file GPL2.TXT included in the packaging of
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| 6 | this file. Please note that GPL2 Section 2[b] requires that all works based
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| 7 | on this software must also be made publicly available under the terms of
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| 8 | the GPL2 ("Copyleft").
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| 9 |
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| 10 | Contact information
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| 11 | -------------------
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| 12 |
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| 13 | Circuits At Home, LTD
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| 14 | Web : http://www.circuitsathome.com
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| 15 | e-mail : support@circuitsathome.com
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| 16 | */
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| 17 |
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| 18 | #include "hidboot.h"
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| 19 |
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| 20 | /**
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| 21 | * \brief Parse HID mouse report.
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| 22 | *
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| 23 | * \param hid HID device pointer.
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| 24 | * \param is_rpt_id True if this is a report ID.
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| 25 | * \param len Buffer length.
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| 26 | * \param buf Buffer containing report data.
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| 27 | */
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| 28 | void MouseReportParser::Parse(HID *hid, bool is_rpt_id, uint32_t len, uint8_t *buf)
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| 29 | {
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| 30 | MOUSEINFO *pmi = (MOUSEINFO*)buf;
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| 31 |
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| 32 | if (prevState.mouseInfo.bmLeftButton == 0 && pmi->bmLeftButton == 1)
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| 33 | OnLeftButtonDown(pmi);
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| 34 |
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| 35 | if (prevState.mouseInfo.bmLeftButton == 1 && pmi->bmLeftButton == 0)
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| 36 | OnLeftButtonUp(pmi);
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| 37 |
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| 38 | if (prevState.mouseInfo.bmRightButton == 0 && pmi->bmRightButton == 1)
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| 39 | OnRightButtonDown(pmi);
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| 40 |
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| 41 | if (prevState.mouseInfo.bmRightButton == 1 && pmi->bmRightButton == 0)
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| 42 | OnRightButtonUp(pmi);
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| 43 |
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| 44 | if (prevState.mouseInfo.bmMiddleButton == 0 && pmi->bmMiddleButton == 1)
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| 45 | OnMiddleButtonDown(pmi);
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| 46 |
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| 47 | if (prevState.mouseInfo.bmMiddleButton == 1 && pmi->bmMiddleButton == 0)
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| 48 | OnMiddleButtonUp(pmi);
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| 49 |
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| 50 | if (prevState.mouseInfo.dX != pmi->dX || prevState.mouseInfo.dY != pmi->dY)
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| 51 | OnMouseMove(pmi);
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| 52 |
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| 53 | for (uint32_t i = 0; i < 3; ++i)
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| 54 | prevState.bInfo[i] = buf[i];
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| 55 | };
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| 56 |
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| 57 | /**
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| 58 | * \brief Parse HID keyboard report.
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| 59 | *
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| 60 | * \param hid HID device pointer.
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| 61 | * \param is_rpt_id True if this is a report ID.
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| 62 | * \param len Buffer length.
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| 63 | * \param buf Buffer containing report data.
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| 64 | */
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| 65 | void KeyboardReportParser::Parse(HID *hid, bool is_rpt_id, uint32_t len, uint8_t *buf)
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| 66 | {
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| 67 | // On error - return
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| 68 | if (buf[2] == 1)
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| 69 | return;
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| 70 |
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| 71 | //KBDINFO *pki = (KBDINFO*)buf;
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| 72 |
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| 73 | for (uint32_t i = 2; i < 8; ++i)
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| 74 | {
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| 75 | bool down = false;
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| 76 | bool up = false;
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| 77 |
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| 78 | for (uint8_t j=2; j<8; j++)
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| 79 | {
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| 80 | if (buf[i] == prevState.bInfo[j] && buf[i] != 1)
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| 81 | down = true;
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| 82 | if (buf[j] == prevState.bInfo[i] && prevState.bInfo[i] != 1)
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| 83 | up = true;
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| 84 | }
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| 85 |
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| 86 | if (!down)
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| 87 | {
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| 88 | HandleLockingKeys(hid, buf[i]);
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| 89 | OnKeyDown(*buf, buf[i]);
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| 90 | }
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| 91 |
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| 92 | if (!up)
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| 93 | OnKeyUp(prevState.bInfo[0], prevState.bInfo[i]);
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| 94 | }
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| 95 |
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| 96 | for (uint32_t i = 0; i < 8; ++i)
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| 97 | prevState.bInfo[i] = buf[i];
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| 98 | };
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| 99 |
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| 100 | /**
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| 101 | * \brief Handle keyboard locking keys and manage keyboard leds using USB
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| 102 | * report.
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| 103 | *
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| 104 | * \param hid HID device pointer.
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| 105 | * \param key Locking key.
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| 106 | *
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| 107 | * \return 0 on success, error code otherwise.
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| 108 | */
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| 109 | uint8_t KeyboardReportParser::HandleLockingKeys(HID *hid, uint8_t key)
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| 110 | {
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| 111 | uint8_t old_keys = kbdLockingKeys.bLeds;
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| 112 |
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| 113 | switch (key)
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| 114 | {
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| 115 | case KEY_NUM_LOCK:
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| 116 | kbdLockingKeys.kbdLeds.bmNumLock = ~kbdLockingKeys.kbdLeds.bmNumLock;
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| 117 | break;
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| 118 | case KEY_CAPS_LOCK:
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| 119 | kbdLockingKeys.kbdLeds.bmCapsLock = ~kbdLockingKeys.kbdLeds.bmCapsLock;
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| 120 | break;
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| 121 | case KEY_SCROLL_LOCK:
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| 122 | kbdLockingKeys.kbdLeds.bmScrollLock = ~kbdLockingKeys.kbdLeds.bmScrollLock;
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| 123 | break;
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| 124 | }
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| 125 |
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| 126 | if (old_keys != kbdLockingKeys.bLeds && hid)
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| 127 | return (hid->SetReport(0, 0/*hid->GetIface()*/, 2, 0, 1, &kbdLockingKeys.bLeds));
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| 128 |
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| 129 | return 0;
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| 130 | }
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| 131 |
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| 132 | const uint8_t KeyboardReportParser::numKeys[] = { '!', '@', '#', '$', '%', '^', '&', '*', '(', ')' };
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| 133 | const uint8_t KeyboardReportParser::symKeysUp[] = { '_', '+', '{', '}', '|', '~', ':', '"', '~', '<', '>', '?' };
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| 134 | const uint8_t KeyboardReportParser::symKeysLo[] = { '-', '=', '[', ']', '\\', ' ', ';', '\'', '`', ',', '.', '/' };
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| 135 | const uint8_t KeyboardReportParser::padKeys[] = { '/', '*', '-', '+', 0x13 };
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| 136 |
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| 137 | /**
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| 138 | * \brief Manage keyboard OEM to ASCII conversion.
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| 139 | *
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| 140 | * \param mod Keyboard modifier.
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| 141 | * \param key Key value to convert.
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| 142 | *
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| 143 | * \return Keyboard corresponding ASCII value on success, 0 otherwise.
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| 144 | */
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| 145 | uint8_t KeyboardReportParser::OemToAscii(uint8_t mod, uint8_t key)
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| 146 | {
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| 147 | uint8_t shift = (mod & 0x22);
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| 148 |
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| 149 | // [a-z]
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| 150 | if (key > 0x03 && key < 0x1e)
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| 151 | {
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| 152 | // Upper case letters
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| 153 | if ( (kbdLockingKeys.kbdLeds.bmCapsLock == 0 && (mod & 2)) ||
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| 154 | (kbdLockingKeys.kbdLeds.bmCapsLock == 1 && (mod & 2) == 0) )
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| 155 | return (key - 4 + 'A');
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| 156 |
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| 157 | // Lower case letters
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| 158 | else
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| 159 | return (key - 4 + 'a');
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| 160 | }
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| 161 | // Numbers
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| 162 | else if (key > 0x1d && key < 0x27)
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| 163 | {
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| 164 | if (shift)
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| 165 | return (numKeys[key - 0x1e]);
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| 166 | else
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| 167 | return (key - 0x1e + '1');
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| 168 | }
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| 169 | // Keypad Numbers
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| 170 | else if (key > 0x58 && key < 0x62)
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| 171 | {
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| 172 | if (kbdLockingKeys.kbdLeds.bmNumLock == 1)
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| 173 | return (key - 0x59 + '1');
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| 174 | }
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| 175 | else if (key > 0x2c && key < 0x39)
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| 176 | return ((shift) ? symKeysUp[key-0x2d] : symKeysLo[key-0x2d]);
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| 177 | else if (key > 0x53 && key < 0x59)
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| 178 | return padKeys[key - 0x54];
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| 179 | else
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| 180 | {
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| 181 | switch (key)
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| 182 | {
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| 183 | case KEY_SPACE: return (0x20);
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| 184 | case KEY_ENTER: return (0x13);
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| 185 | case KEY_ZERO: return ((shift) ? ')' : '0');
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| 186 | case KEY_ZERO2: return ((kbdLockingKeys.kbdLeds.bmNumLock == 1) ? '0' : 0);
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| 187 | case KEY_PERIOD: return ((kbdLockingKeys.kbdLeds.bmNumLock == 1) ? '.' : 0);
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| 188 | }
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| 189 | }
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| 190 |
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| 191 | return 0;
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| 192 | }
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