koikelab / USBHost

added USB host

Dependencies:   FATFileSystem mbed-rtos

Dependents:   app-board-Speaker

Fork of USBHost by mbed official

USBHostHID/USBHostKeyboard.cpp@24:868cbfe611a7, 2014-06-03 (annotated)

Committer:
mbed_official
Date:
Tue Jun 03 11:30:38 2014 +0100
Revision:
24:868cbfe611a7
Parent:
8:93da8ea2708b 
Synchronized with git revision bcacbb9fbf3432829227430830cca4315b57c1b9



Full URL: https://github.com/mbedmicro/mbed/commit/bcacbb9fbf3432829227430830cca4315b57c1b9/

Who changed what in which revision?

UserRevisionLine numberNew contents of line
samux 8:93da8ea2708b 1 /* mbed USBHost Library
samux 8:93da8ea2708b 2 * Copyright (c) 2006-2013 ARM Limited
samux 8:93da8ea2708b 3 *
samux 8:93da8ea2708b 4 * Licensed under the Apache License, Version 2.0 (the "License");
samux 8:93da8ea2708b 5 * you may not use this file except in compliance with the License.
samux 8:93da8ea2708b 6 * You may obtain a copy of the License at
samux 8:93da8ea2708b 7 *
samux 8:93da8ea2708b 8 * http://www.apache.org/licenses/LICENSE-2.0
samux 8:93da8ea2708b 9 *
samux 8:93da8ea2708b 10 * Unless required by applicable law or agreed to in writing, software
samux 8:93da8ea2708b 11 * distributed under the License is distributed on an "AS IS" BASIS,
samux 8:93da8ea2708b 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
samux 8:93da8ea2708b 13 * See the License for the specific language governing permissions and
samux 8:93da8ea2708b 14 * limitations under the License.
samux 8:93da8ea2708b 15 */
mbed_official 0:a554658735bf 16
mbed_official 0:a554658735bf 17 #include "USBHostKeyboard.h"
mbed_official 0:a554658735bf 18
mbed_official 0:a554658735bf 19 #if USBHOST_KEYBOARD
mbed_official 0:a554658735bf 20
mbed_official 24:868cbfe611a7 21 static uint8_t keymap[4][0x39] = {
mbed_official 0:a554658735bf 22 { 0, 0, 0, 0, 'a', 'b' /*0x05*/,
mbed_official 0:a554658735bf 23 'c', 'd', 'e', 'f', 'g' /*0x0a*/,
mbed_official 0:a554658735bf 24 'h', 'i', 'j', 'k', 'l'/*0x0f*/,
mbed_official 0:a554658735bf 25 'm', 'n', 'o', 'p', 'q'/*0x14*/,
mbed_official 0:a554658735bf 26 'r', 's', 't', 'u', 'v'/*0x19*/,
mbed_official 0:a554658735bf 27 'w', 'x', 'y', 'z', '1'/*0x1E*/,
mbed_official 0:a554658735bf 28 '2', '3', '4', '5', '6'/*0x23*/,
mbed_official 0:a554658735bf 29 '7', '8', '9', '0', 0x0A /*enter*/, /*0x28*/
mbed_official 0:a554658735bf 30 0x1B /*escape*/, 0x08 /*backspace*/, 0x09/*tab*/, 0x20/*space*/, '-', /*0x2d*/
mbed_official 0:a554658735bf 31 '=', '[', ']', '\\', '#', /*0x32*/
mbed_official 0:a554658735bf 32 ';', '\'', 0, ',', '.', /*0x37*/
mbed_official 0:a554658735bf 33 '/'},
mbed_official 0:a554658735bf 34
mbed_official 0:a554658735bf 35 /* CTRL MODIFIER */
mbed_official 0:a554658735bf 36 { 0, 0, 0, 0, 0, 0 /*0x05*/,
mbed_official 0:a554658735bf 37 0, 0, 0, 0, 0 /*0x0a*/,
mbed_official 0:a554658735bf 38 0, 0, 0, 0, 0/*0x0f*/,
mbed_official 0:a554658735bf 39 0, 0, 0, 0, 0/*0x14*/,
mbed_official 0:a554658735bf 40 0, 0, 0, 0, 0/*0x19*/,
mbed_official 0:a554658735bf 41 0, 0, 0, 0, 0/*0x1E*/,
mbed_official 0:a554658735bf 42 0, 0, 0, 0, 0/*0x23*/,
mbed_official 0:a554658735bf 43 0, 0, 0, 0, 0 /*enter*/, /*0x28*/
mbed_official 0:a554658735bf 44 0, 0, 0, 0, 0, /*0x2d*/
mbed_official 0:a554658735bf 45 0, 0, 0, 0, 0, /*0x32*/
mbed_official 0:a554658735bf 46 0, 0, 0, 0, 0, /*0x37*/
mbed_official 0:a554658735bf 47 0},
mbed_official 0:a554658735bf 48
mbed_official 0:a554658735bf 49 /* SHIFT MODIFIER */
mbed_official 0:a554658735bf 50 { 0, 0, 0, 0, 'A', 'B' /*0x05*/,
mbed_official 0:a554658735bf 51 'C', 'D', 'E', 'F', 'G' /*0x0a*/,
mbed_official 0:a554658735bf 52 'H', 'I', 'J', 'K', 'L'/*0x0f*/,
mbed_official 0:a554658735bf 53 'M', 'N', 'O', 'P', 'Q'/*0x14*/,
mbed_official 0:a554658735bf 54 'R', 'S', 'T', 'U', 'V'/*0x19*/,
mbed_official 0:a554658735bf 55 'W', 'X', 'Y', 'Z', '!'/*0x1E*/,
mbed_official 0:a554658735bf 56 '@', '#', '$', '%', '^'/*0x23*/,
mbed_official 0:a554658735bf 57 '&', '*', '(', ')', 0, /*0x28*/
mbed_official 0:a554658735bf 58 0, 0, 0, 0, 0, /*0x2d*/
mbed_official 0:a554658735bf 59 '+', '{', '}', '|', '~', /*0x32*/
mbed_official 0:a554658735bf 60 ':', '"', 0, '<', '>', /*0x37*/
mbed_official 0:a554658735bf 61 '?'},
mbed_official 0:a554658735bf 62
mbed_official 0:a554658735bf 63 /* ALT MODIFIER */
mbed_official 0:a554658735bf 64 { 0, 0, 0, 0, 0, 0 /*0x05*/,
mbed_official 0:a554658735bf 65 0, 0, 0, 0, 0 /*0x0a*/,
mbed_official 0:a554658735bf 66 0, 0, 0, 0, 0/*0x0f*/,
mbed_official 0:a554658735bf 67 0, 0, 0, 0, 0/*0x14*/,
mbed_official 0:a554658735bf 68 0, 0, 0, 0, 0/*0x19*/,
mbed_official 0:a554658735bf 69 0, 0, 0, 0, 0/*0x1E*/,
mbed_official 0:a554658735bf 70 0, 0, 0, 0, 0/*0x23*/,
mbed_official 0:a554658735bf 71 0, 0, 0, 0, 0 /*enter*/, /*0x28*/
mbed_official 0:a554658735bf 72 0, 0, 0, 0, 0, /*0x2d*/
mbed_official 0:a554658735bf 73 0, 0, 0, 0, 0, /*0x32*/
mbed_official 0:a554658735bf 74 0, 0, 0, 0, 0, /*0x37*/
mbed_official 0:a554658735bf 75 0}
mbed_official 0:a554658735bf 76
mbed_official 0:a554658735bf 77 };
mbed_official 0:a554658735bf 78
mbed_official 0:a554658735bf 79
mbed_official 0:a554658735bf 80 USBHostKeyboard::USBHostKeyboard() {
mbed_official 0:a554658735bf 81 host = USBHost::getHostInst();
mbed_official 0:a554658735bf 82 init();
mbed_official 0:a554658735bf 83 }
mbed_official 0:a554658735bf 84
mbed_official 0:a554658735bf 85
mbed_official 0:a554658735bf 86 void USBHostKeyboard::init() {
mbed_official 0:a554658735bf 87 dev = NULL;
mbed_official 0:a554658735bf 88 int_in = NULL;
mbed_official 0:a554658735bf 89 report_id = 0;
mbed_official 0:a554658735bf 90 onKey = NULL;
mbed_official 0:a554658735bf 91 onKeyCode = NULL;
mbed_official 0:a554658735bf 92 dev_connected = false;
mbed_official 0:a554658735bf 93 keyboard_intf = -1;
mbed_official 0:a554658735bf 94 keyboard_device_found = false;
mbed_official 0:a554658735bf 95 }
mbed_official 0:a554658735bf 96
mbed_official 0:a554658735bf 97 bool USBHostKeyboard::connected() {
mbed_official 0:a554658735bf 98 return dev_connected;
mbed_official 0:a554658735bf 99 }
mbed_official 0:a554658735bf 100
mbed_official 0:a554658735bf 101
mbed_official 0:a554658735bf 102 bool USBHostKeyboard::connect() {
mbed_official 24:868cbfe611a7 103
mbed_official 0:a554658735bf 104 if (dev_connected) {
mbed_official 0:a554658735bf 105 return true;
mbed_official 0:a554658735bf 106 }
mbed_official 24:868cbfe611a7 107
samux 5:e48791a1ef18 108 for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++) {
mbed_official 0:a554658735bf 109 if ((dev = host->getDevice(i)) != NULL) {
mbed_official 0:a554658735bf 110
mbed_official 0:a554658735bf 111 if (host->enumerate(dev, this))
mbed_official 0:a554658735bf 112 break;
mbed_official 24:868cbfe611a7 113
mbed_official 0:a554658735bf 114 if (keyboard_device_found) {
mbed_official 0:a554658735bf 115 int_in = dev->getEndpoint(keyboard_intf, INTERRUPT_ENDPOINT, IN);
mbed_official 24:868cbfe611a7 116
mbed_official 0:a554658735bf 117 if (!int_in)
mbed_official 0:a554658735bf 118 break;
mbed_official 24:868cbfe611a7 119
samux 4:b320d68e98e7 120 USB_INFO("New Keyboard device: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, keyboard_intf);
samux 4:b320d68e98e7 121 dev->setName("Keyboard", keyboard_intf);
mbed_official 0:a554658735bf 122 host->registerDriver(dev, keyboard_intf, this, &USBHostKeyboard::init);
mbed_official 24:868cbfe611a7 123
mbed_official 0:a554658735bf 124 int_in->attach(this, &USBHostKeyboard::rxHandler);
mbed_official 0:a554658735bf 125 host->interruptRead(dev, int_in, report, int_in->getSize(), false);
mbed_official 24:868cbfe611a7 126
mbed_official 0:a554658735bf 127 dev_connected = true;
mbed_official 0:a554658735bf 128 return true;
mbed_official 0:a554658735bf 129 }
mbed_official 0:a554658735bf 130 }
mbed_official 0:a554658735bf 131 }
mbed_official 0:a554658735bf 132 init();
mbed_official 0:a554658735bf 133 return false;
mbed_official 0:a554658735bf 134 }
mbed_official 0:a554658735bf 135
mbed_official 0:a554658735bf 136 void USBHostKeyboard::rxHandler() {
mbed_official 0:a554658735bf 137 int len = int_in->getLengthTransferred();
mbed_official 0:a554658735bf 138 int index = (len == 9) ? 1 : 0;
mbed_official 0:a554658735bf 139 int len_listen = int_in->getSize();
mbed_official 0:a554658735bf 140 uint8_t key = 0;
mbed_official 0:a554658735bf 141 if (len == 8 || len == 9) {
mbed_official 0:a554658735bf 142 uint8_t modifier = (report[index] == 4) ? 3 : report[index];
mbed_official 0:a554658735bf 143 len_listen = len;
mbed_official 0:a554658735bf 144 key = keymap[modifier][report[index + 2]];
mbed_official 0:a554658735bf 145 if (key && onKey) {
mbed_official 0:a554658735bf 146 (*onKey)(key);
mbed_official 0:a554658735bf 147 }
samux 5:e48791a1ef18 148 if ((report[index + 2] || modifier) && onKeyCode) {
mbed_official 0:a554658735bf 149 (*onKeyCode)(report[index + 2], modifier);
mbed_official 0:a554658735bf 150 }
mbed_official 0:a554658735bf 151 }
samux 5:e48791a1ef18 152 if (dev && int_in)
mbed_official 0:a554658735bf 153 host->interruptRead(dev, int_in, report, len_listen, false);
mbed_official 0:a554658735bf 154 }
mbed_official 0:a554658735bf 155
mbed_official 0:a554658735bf 156 /*virtual*/ void USBHostKeyboard::setVidPid(uint16_t vid, uint16_t pid)
mbed_official 0:a554658735bf 157 {
mbed_official 0:a554658735bf 158 // we don't check VID/PID for keyboard driver
mbed_official 0:a554658735bf 159 }
mbed_official 0:a554658735bf 160
mbed_official 0:a554658735bf 161 /*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 162 {
mbed_official 0:a554658735bf 163 if ((keyboard_intf == -1) &&
mbed_official 0:a554658735bf 164 (intf_class == HID_CLASS) &&
mbed_official 0:a554658735bf 165 (intf_subclass == 0x01) &&
mbed_official 0:a554658735bf 166 (intf_protocol == 0x01)) {
mbed_official 0:a554658735bf 167 keyboard_intf = intf_nb;
mbed_official 0:a554658735bf 168 return true;
mbed_official 0:a554658735bf 169 }
mbed_official 0:a554658735bf 170 return false;
mbed_official 0:a554658735bf 171 }
mbed_official 0:a554658735bf 172
mbed_official 0:a554658735bf 173 /*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 174 {
mbed_official 0:a554658735bf 175 if (intf_nb == keyboard_intf) {
mbed_official 0:a554658735bf 176 if (type == INTERRUPT_ENDPOINT && dir == IN) {
mbed_official 0:a554658735bf 177 keyboard_device_found = true;
mbed_official 0:a554658735bf 178 return true;
mbed_official 0:a554658735bf 179 }
mbed_official 0:a554658735bf 180 }
mbed_official 0:a554658735bf 181 return false;
mbed_official 0:a554658735bf 182 }
mbed_official 0:a554658735bf 183
mbed_official 0:a554658735bf 184 #endif