Fixing issues with library dependencies
Dependencies: FATFileSystem mbed-rtos
Fork of USBHost by
USBHostKeyboard.cpp
00001 /* mbed USBHost Library 00002 * Copyright (c) 2006-2013 ARM Limited 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 00017 #include "USBHostKeyboard.h" 00018 00019 #if USBHOST_KEYBOARD 00020 00021 static uint8_t keymap[4][0x39] = { 00022 { 0, 0, 0, 0, 'a', 'b' /*0x05*/, 00023 'c', 'd', 'e', 'f', 'g' /*0x0a*/, 00024 'h', 'i', 'j', 'k', 'l'/*0x0f*/, 00025 'm', 'n', 'o', 'p', 'q'/*0x14*/, 00026 'r', 's', 't', 'u', 'v'/*0x19*/, 00027 'w', 'x', 'y', 'z', '1'/*0x1E*/, 00028 '2', '3', '4', '5', '6'/*0x23*/, 00029 '7', '8', '9', '0', 0x0A /*enter*/, /*0x28*/ 00030 0x1B /*escape*/, 0x08 /*backspace*/, 0x09/*tab*/, 0x20/*space*/, '-', /*0x2d*/ 00031 '=', '[', ']', '\\', '#', /*0x32*/ 00032 ';', '\'', 0, ',', '.', /*0x37*/ 00033 '/'}, 00034 00035 /* CTRL MODIFIER */ 00036 { 0, 0, 0, 0, 0, 0 /*0x05*/, 00037 0, 0, 0, 0, 0 /*0x0a*/, 00038 0, 0, 0, 0, 0/*0x0f*/, 00039 0, 0, 0, 0, 0/*0x14*/, 00040 0, 0, 0, 0, 0/*0x19*/, 00041 0, 0, 0, 0, 0/*0x1E*/, 00042 0, 0, 0, 0, 0/*0x23*/, 00043 0, 0, 0, 0, 0 /*enter*/, /*0x28*/ 00044 0, 0, 0, 0, 0, /*0x2d*/ 00045 0, 0, 0, 0, 0, /*0x32*/ 00046 0, 0, 0, 0, 0, /*0x37*/ 00047 0}, 00048 00049 /* SHIFT MODIFIER */ 00050 { 0, 0, 0, 0, 'A', 'B' /*0x05*/, 00051 'C', 'D', 'E', 'F', 'G' /*0x0a*/, 00052 'H', 'I', 'J', 'K', 'L'/*0x0f*/, 00053 'M', 'N', 'O', 'P', 'Q'/*0x14*/, 00054 'R', 'S', 'T', 'U', 'V'/*0x19*/, 00055 'W', 'X', 'Y', 'Z', '!'/*0x1E*/, 00056 '@', '#', '$', '%', '^'/*0x23*/, 00057 '&', '*', '(', ')', 0, /*0x28*/ 00058 0, 0, 0, 0, 0, /*0x2d*/ 00059 '+', '{', '}', '|', '~', /*0x32*/ 00060 ':', '"', 0, '<', '>', /*0x37*/ 00061 '?'}, 00062 00063 /* ALT MODIFIER */ 00064 { 0, 0, 0, 0, 0, 0 /*0x05*/, 00065 0, 0, 0, 0, 0 /*0x0a*/, 00066 0, 0, 0, 0, 0/*0x0f*/, 00067 0, 0, 0, 0, 0/*0x14*/, 00068 0, 0, 0, 0, 0/*0x19*/, 00069 0, 0, 0, 0, 0/*0x1E*/, 00070 0, 0, 0, 0, 0/*0x23*/, 00071 0, 0, 0, 0, 0 /*enter*/, /*0x28*/ 00072 0, 0, 0, 0, 0, /*0x2d*/ 00073 0, 0, 0, 0, 0, /*0x32*/ 00074 0, 0, 0, 0, 0, /*0x37*/ 00075 0} 00076 00077 }; 00078 00079 00080 USBHostKeyboard::USBHostKeyboard() { 00081 host = USBHost::getHostInst(); 00082 init(); 00083 } 00084 00085 00086 void USBHostKeyboard::init() { 00087 dev = NULL; 00088 int_in = NULL; 00089 report_id = 0; 00090 onKey = NULL; 00091 onKeyCode = NULL; 00092 dev_connected = false; 00093 keyboard_intf = -1; 00094 keyboard_device_found = false; 00095 } 00096 00097 bool USBHostKeyboard::connected() { 00098 return dev_connected; 00099 } 00100 00101 00102 bool USBHostKeyboard::connect() { 00103 00104 if (dev_connected) { 00105 return true; 00106 } 00107 00108 for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++) { 00109 if ((dev = host->getDevice(i)) != NULL) { 00110 00111 if (host->enumerate(dev, this)) 00112 break; 00113 00114 if (keyboard_device_found) { 00115 int_in = dev->getEndpoint(keyboard_intf, INTERRUPT_ENDPOINT, IN); 00116 00117 if (!int_in) 00118 break; 00119 00120 USB_INFO("New Keyboard device: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, keyboard_intf); 00121 dev->setName("Keyboard", keyboard_intf); 00122 host->registerDriver(dev, keyboard_intf, this, &USBHostKeyboard::init); 00123 00124 int_in->attach(this, &USBHostKeyboard::rxHandler); 00125 host->interruptRead(dev, int_in, report, int_in->getSize(), false); 00126 00127 dev_connected = true; 00128 return true; 00129 } 00130 } 00131 } 00132 init(); 00133 return false; 00134 } 00135 00136 void USBHostKeyboard::rxHandler() { 00137 int len = int_in->getLengthTransferred(); 00138 int index = (len == 9) ? 1 : 0; 00139 int len_listen = int_in->getSize(); 00140 uint8_t key = 0; 00141 if (len == 8 || len == 9) { 00142 uint8_t modifier = (report[index] == 4) ? 3 : report[index]; 00143 len_listen = len; 00144 key = keymap[modifier][report[index + 2]]; 00145 if (key && onKey) { 00146 (*onKey)(key); 00147 } 00148 if ((report[index + 2] || modifier) && onKeyCode) { 00149 (*onKeyCode)(report[index + 2], modifier); 00150 } 00151 } 00152 if (dev && int_in) 00153 host->interruptRead(dev, int_in, report, len_listen, false); 00154 } 00155 00156 /*virtual*/ void USBHostKeyboard::setVidPid(uint16_t vid, uint16_t pid) 00157 { 00158 // we don't check VID/PID for keyboard driver 00159 } 00160 00161 /*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 00162 { 00163 if ((keyboard_intf == -1) && 00164 (intf_class == HID_CLASS) && 00165 (intf_subclass == 0x01) && 00166 (intf_protocol == 0x01)) { 00167 keyboard_intf = intf_nb; 00168 return true; 00169 } 00170 return false; 00171 } 00172 00173 /*virtual*/ bool USBHostKeyboard::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used 00174 { 00175 if (intf_nb == keyboard_intf) { 00176 if (type == INTERRUPT_ENDPOINT && dir == IN) { 00177 keyboard_device_found = true; 00178 return true; 00179 } 00180 } 00181 return false; 00182 } 00183 00184 #endif
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