C K / USBHost

USBHost library

Dependencies:   FATFileSystem

Dependents:   x4180_Tank Totaleprogramma Handmatig Totaleprogramma1

Fork of USBHost by mbed official

USBHostHID/USBHostKeyboard.cpp@5:e48791a1ef18, 2013-03-13 (annotated)

Committer:
samux
Date:
Wed Mar 13 10:23:01 2013 +0000
Revision:
5:e48791a1ef18
Parent:
4:b320d68e98e7
Child:
8:93da8ea2708b
add button, x, y, z event callbacks

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 0:a554658735bf 1 /* Copyright (c) 2010-2011 mbed.org, MIT License
mbed_official 0:a554658735bf 2 *
mbed_official 0:a554658735bf 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
mbed_official 0:a554658735bf 4 * and associated documentation files (the "Software"), to deal in the Software without
mbed_official 0:a554658735bf 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
mbed_official 0:a554658735bf 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
mbed_official 0:a554658735bf 7 * Software is furnished to do so, subject to the following conditions:
mbed_official 0:a554658735bf 8 *
mbed_official 0:a554658735bf 9 * The above copyright notice and this permission notice shall be included in all copies or
mbed_official 0:a554658735bf 10 * substantial portions of the Software.
mbed_official 0:a554658735bf 11 *
mbed_official 0:a554658735bf 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
mbed_official 0:a554658735bf 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
mbed_official 0:a554658735bf 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
mbed_official 0:a554658735bf 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
mbed_official 0:a554658735bf 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
mbed_official 0:a554658735bf 17 */
mbed_official 0:a554658735bf 18
mbed_official 0:a554658735bf 19 #include "USBHostKeyboard.h"
mbed_official 0:a554658735bf 20
mbed_official 0:a554658735bf 21 #if USBHOST_KEYBOARD
mbed_official 0:a554658735bf 22
mbed_official 0:a554658735bf 23 static uint8_t keymap[4][0x39] = {
mbed_official 0:a554658735bf 24 { 0, 0, 0, 0, 'a', 'b' /*0x05*/,
mbed_official 0:a554658735bf 25 'c', 'd', 'e', 'f', 'g' /*0x0a*/,
mbed_official 0:a554658735bf 26 'h', 'i', 'j', 'k', 'l'/*0x0f*/,
mbed_official 0:a554658735bf 27 'm', 'n', 'o', 'p', 'q'/*0x14*/,
mbed_official 0:a554658735bf 28 'r', 's', 't', 'u', 'v'/*0x19*/,
mbed_official 0:a554658735bf 29 'w', 'x', 'y', 'z', '1'/*0x1E*/,
mbed_official 0:a554658735bf 30 '2', '3', '4', '5', '6'/*0x23*/,
mbed_official 0:a554658735bf 31 '7', '8', '9', '0', 0x0A /*enter*/, /*0x28*/
mbed_official 0:a554658735bf 32 0x1B /*escape*/, 0x08 /*backspace*/, 0x09/*tab*/, 0x20/*space*/, '-', /*0x2d*/
mbed_official 0:a554658735bf 33 '=', '[', ']', '\\', '#', /*0x32*/
mbed_official 0:a554658735bf 34 ';', '\'', 0, ',', '.', /*0x37*/
mbed_official 0:a554658735bf 35 '/'},
mbed_official 0:a554658735bf 36
mbed_official 0:a554658735bf 37 /* CTRL MODIFIER */
mbed_official 0:a554658735bf 38 { 0, 0, 0, 0, 0, 0 /*0x05*/,
mbed_official 0:a554658735bf 39 0, 0, 0, 0, 0 /*0x0a*/,
mbed_official 0:a554658735bf 40 0, 0, 0, 0, 0/*0x0f*/,
mbed_official 0:a554658735bf 41 0, 0, 0, 0, 0/*0x14*/,
mbed_official 0:a554658735bf 42 0, 0, 0, 0, 0/*0x19*/,
mbed_official 0:a554658735bf 43 0, 0, 0, 0, 0/*0x1E*/,
mbed_official 0:a554658735bf 44 0, 0, 0, 0, 0/*0x23*/,
mbed_official 0:a554658735bf 45 0, 0, 0, 0, 0 /*enter*/, /*0x28*/
mbed_official 0:a554658735bf 46 0, 0, 0, 0, 0, /*0x2d*/
mbed_official 0:a554658735bf 47 0, 0, 0, 0, 0, /*0x32*/
mbed_official 0:a554658735bf 48 0, 0, 0, 0, 0, /*0x37*/
mbed_official 0:a554658735bf 49 0},
mbed_official 0:a554658735bf 50
mbed_official 0:a554658735bf 51 /* SHIFT MODIFIER */
mbed_official 0:a554658735bf 52 { 0, 0, 0, 0, 'A', 'B' /*0x05*/,
mbed_official 0:a554658735bf 53 'C', 'D', 'E', 'F', 'G' /*0x0a*/,
mbed_official 0:a554658735bf 54 'H', 'I', 'J', 'K', 'L'/*0x0f*/,
mbed_official 0:a554658735bf 55 'M', 'N', 'O', 'P', 'Q'/*0x14*/,
mbed_official 0:a554658735bf 56 'R', 'S', 'T', 'U', 'V'/*0x19*/,
mbed_official 0:a554658735bf 57 'W', 'X', 'Y', 'Z', '!'/*0x1E*/,
mbed_official 0:a554658735bf 58 '@', '#', '$', '%', '^'/*0x23*/,
mbed_official 0:a554658735bf 59 '&', '*', '(', ')', 0, /*0x28*/
mbed_official 0:a554658735bf 60 0, 0, 0, 0, 0, /*0x2d*/
mbed_official 0:a554658735bf 61 '+', '{', '}', '|', '~', /*0x32*/
mbed_official 0:a554658735bf 62 ':', '"', 0, '<', '>', /*0x37*/
mbed_official 0:a554658735bf 63 '?'},
mbed_official 0:a554658735bf 64
mbed_official 0:a554658735bf 65 /* ALT MODIFIER */
mbed_official 0:a554658735bf 66 { 0, 0, 0, 0, 0, 0 /*0x05*/,
mbed_official 0:a554658735bf 67 0, 0, 0, 0, 0 /*0x0a*/,
mbed_official 0:a554658735bf 68 0, 0, 0, 0, 0/*0x0f*/,
mbed_official 0:a554658735bf 69 0, 0, 0, 0, 0/*0x14*/,
mbed_official 0:a554658735bf 70 0, 0, 0, 0, 0/*0x19*/,
mbed_official 0:a554658735bf 71 0, 0, 0, 0, 0/*0x1E*/,
mbed_official 0:a554658735bf 72 0, 0, 0, 0, 0/*0x23*/,
mbed_official 0:a554658735bf 73 0, 0, 0, 0, 0 /*enter*/, /*0x28*/
mbed_official 0:a554658735bf 74 0, 0, 0, 0, 0, /*0x2d*/
mbed_official 0:a554658735bf 75 0, 0, 0, 0, 0, /*0x32*/
mbed_official 0:a554658735bf 76 0, 0, 0, 0, 0, /*0x37*/
mbed_official 0:a554658735bf 77 0}
mbed_official 0:a554658735bf 78
mbed_official 0:a554658735bf 79 };
mbed_official 0:a554658735bf 80
mbed_official 0:a554658735bf 81
mbed_official 0:a554658735bf 82 USBHostKeyboard::USBHostKeyboard() {
mbed_official 0:a554658735bf 83 host = USBHost::getHostInst();
mbed_official 0:a554658735bf 84 init();
mbed_official 0:a554658735bf 85 }
mbed_official 0:a554658735bf 86
mbed_official 0:a554658735bf 87
mbed_official 0:a554658735bf 88 void USBHostKeyboard::init() {
mbed_official 0:a554658735bf 89 dev = NULL;
mbed_official 0:a554658735bf 90 int_in = NULL;
mbed_official 0:a554658735bf 91 report_id = 0;
mbed_official 0:a554658735bf 92 onKey = NULL;
mbed_official 0:a554658735bf 93 onKeyCode = NULL;
mbed_official 0:a554658735bf 94 dev_connected = false;
mbed_official 0:a554658735bf 95 keyboard_intf = -1;
mbed_official 0:a554658735bf 96 keyboard_device_found = false;
mbed_official 0:a554658735bf 97 }
mbed_official 0:a554658735bf 98
mbed_official 0:a554658735bf 99 bool USBHostKeyboard::connected() {
mbed_official 0:a554658735bf 100 return dev_connected;
mbed_official 0:a554658735bf 101 }
mbed_official 0:a554658735bf 102
mbed_official 0:a554658735bf 103
mbed_official 0:a554658735bf 104 bool USBHostKeyboard::connect() {
mbed_official 0:a554658735bf 105
mbed_official 0:a554658735bf 106 if (dev_connected) {
mbed_official 0:a554658735bf 107 return true;
mbed_official 0:a554658735bf 108 }
mbed_official 0:a554658735bf 109
samux 5:e48791a1ef18 110 for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++) {
mbed_official 0:a554658735bf 111 if ((dev = host->getDevice(i)) != NULL) {
mbed_official 0:a554658735bf 112
mbed_official 0:a554658735bf 113 if (host->enumerate(dev, this))
mbed_official 0:a554658735bf 114 break;
mbed_official 0:a554658735bf 115
mbed_official 0:a554658735bf 116 if (keyboard_device_found) {
mbed_official 0:a554658735bf 117 int_in = dev->getEndpoint(keyboard_intf, INTERRUPT_ENDPOINT, IN);
mbed_official 0:a554658735bf 118
mbed_official 0:a554658735bf 119 if (!int_in)
mbed_official 0:a554658735bf 120 break;
mbed_official 0:a554658735bf 121
samux 4:b320d68e98e7 122 USB_INFO("New Keyboard device: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, keyboard_intf);
samux 4:b320d68e98e7 123 dev->setName("Keyboard", keyboard_intf);
mbed_official 0:a554658735bf 124 host->registerDriver(dev, keyboard_intf, this, &USBHostKeyboard::init);
mbed_official 0:a554658735bf 125
mbed_official 0:a554658735bf 126 int_in->attach(this, &USBHostKeyboard::rxHandler);
mbed_official 0:a554658735bf 127 host->interruptRead(dev, int_in, report, int_in->getSize(), false);
mbed_official 0:a554658735bf 128
mbed_official 0:a554658735bf 129 dev_connected = true;
mbed_official 0:a554658735bf 130 return true;
mbed_official 0:a554658735bf 131 }
mbed_official 0:a554658735bf 132 }
mbed_official 0:a554658735bf 133 }
mbed_official 0:a554658735bf 134 init();
mbed_official 0:a554658735bf 135 return false;
mbed_official 0:a554658735bf 136 }
mbed_official 0:a554658735bf 137
mbed_official 0:a554658735bf 138 void USBHostKeyboard::rxHandler() {
mbed_official 0:a554658735bf 139 int len = int_in->getLengthTransferred();
mbed_official 0:a554658735bf 140 int index = (len == 9) ? 1 : 0;
mbed_official 0:a554658735bf 141 int len_listen = int_in->getSize();
mbed_official 0:a554658735bf 142 uint8_t key = 0;
mbed_official 0:a554658735bf 143 if (len == 8 || len == 9) {
mbed_official 0:a554658735bf 144 uint8_t modifier = (report[index] == 4) ? 3 : report[index];
mbed_official 0:a554658735bf 145 len_listen = len;
mbed_official 0:a554658735bf 146 key = keymap[modifier][report[index + 2]];
mbed_official 0:a554658735bf 147 if (key && onKey) {
mbed_official 0:a554658735bf 148 (*onKey)(key);
mbed_official 0:a554658735bf 149 }
samux 5:e48791a1ef18 150 if ((report[index + 2] || modifier) && onKeyCode) {
mbed_official 0:a554658735bf 151 (*onKeyCode)(report[index + 2], modifier);
mbed_official 0:a554658735bf 152 }
mbed_official 0:a554658735bf 153 }
samux 5:e48791a1ef18 154 if (dev && int_in)
mbed_official 0:a554658735bf 155 host->interruptRead(dev, int_in, report, len_listen, false);
mbed_official 0:a554658735bf 156 }
mbed_official 0:a554658735bf 157
mbed_official 0:a554658735bf 158 /*virtual*/ void USBHostKeyboard::setVidPid(uint16_t vid, uint16_t pid)
mbed_official 0:a554658735bf 159 {
mbed_official 0:a554658735bf 160 // we don't check VID/PID for keyboard driver
mbed_official 0:a554658735bf 161 }
mbed_official 0:a554658735bf 162
mbed_official 0:a554658735bf 163 /*virtual*/ bool USBHostKeyboard::parseInterface(uint8_t intf_nb, uint8_t intf_class, uint8_t intf_subclass, uint8_t intf_protocol) //Must return true if the interface should be parsed
mbed_official 0:a554658735bf 164 {
mbed_official 0:a554658735bf 165 if ((keyboard_intf == -1) &&
mbed_official 0:a554658735bf 166 (intf_class == HID_CLASS) &&
mbed_official 0:a554658735bf 167 (intf_subclass == 0x01) &&
mbed_official 0:a554658735bf 168 (intf_protocol == 0x01)) {
mbed_official 0:a554658735bf 169 keyboard_intf = intf_nb;
mbed_official 0:a554658735bf 170 return true;
mbed_official 0:a554658735bf 171 }
mbed_official 0:a554658735bf 172 return false;
mbed_official 0:a554658735bf 173 }
mbed_official 0:a554658735bf 174
mbed_official 0:a554658735bf 175 /*virtual*/ bool USBHostKeyboard::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used
mbed_official 0:a554658735bf 176 {
mbed_official 0:a554658735bf 177 if (intf_nb == keyboard_intf) {
mbed_official 0:a554658735bf 178 if (type == INTERRUPT_ENDPOINT && dir == IN) {
mbed_official 0:a554658735bf 179 keyboard_device_found = true;
mbed_official 0:a554658735bf 180 return true;
mbed_official 0:a554658735bf 181 }
mbed_official 0:a554658735bf 182 }
mbed_official 0:a554658735bf 183 return false;
mbed_official 0:a554658735bf 184 }
mbed_official 0:a554658735bf 185
mbed_official 0:a554658735bf 186 #endif