2018.07.26
Dependencies: FATFileSystem3 mbed-rtos
Fork of USBHost by
USBHostHID/USBHostKeyboard.cpp
- Committer:
- sayzyas
- Date:
- 2018-07-26
- Revision:
- 44:ef52682c423e
- Parent:
- 43:1675750cca08
File content as of revision 44:ef52682c423e:
/* mbed USBHost Library * Copyright (c) 2006-2013 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "USBHostKeyboard.h" #if USBHOST_KEYBOARD static uint8_t keymap[4][0x39] = { { 0, 0, 0, 0, 'a', 'b' /*0x05*/, 'c', 'd', 'e', 'f', 'g' /*0x0a*/, 'h', 'i', 'j', 'k', 'l'/*0x0f*/, 'm', 'n', 'o', 'p', 'q'/*0x14*/, 'r', 's', 't', 'u', 'v'/*0x19*/, 'w', 'x', 'y', 'z', '1'/*0x1E*/, '2', '3', '4', '5', '6'/*0x23*/, '7', '8', '9', '0', 0x0A /*enter*/, /*0x28*/ 0x1B /*escape*/, 0x08 /*backspace*/, 0x09/*tab*/, 0x20/*space*/, '-', /*0x2d*/ '=', '[', ']', '\\', '#', /*0x32*/ ';', '\'', 0, ',', '.', /*0x37*/ '/'}, /* CTRL MODIFIER */ { 0, 0, 0, 0, 0, 0 /*0x05*/, 0, 0, 0, 0, 0 /*0x0a*/, 0, 0, 0, 0, 0/*0x0f*/, 0, 0, 0, 0, 0/*0x14*/, 0, 0, 0, 0, 0/*0x19*/, 0, 0, 0, 0, 0/*0x1E*/, 0, 0, 0, 0, 0/*0x23*/, 0, 0, 0, 0, 0 /*enter*/, /*0x28*/ 0, 0, 0, 0, 0, /*0x2d*/ 0, 0, 0, 0, 0, /*0x32*/ 0, 0, 0, 0, 0, /*0x37*/ 0}, /* SHIFT MODIFIER */ { 0, 0, 0, 0, 'A', 'B' /*0x05*/, 'C', 'D', 'E', 'F', 'G' /*0x0a*/, 'H', 'I', 'J', 'K', 'L'/*0x0f*/, 'M', 'N', 'O', 'P', 'Q'/*0x14*/, 'R', 'S', 'T', 'U', 'V'/*0x19*/, 'W', 'X', 'Y', 'Z', '!'/*0x1E*/, '@', '#', '$', '%', '^'/*0x23*/, '&', '*', '(', ')', 0, /*0x28*/ 0, 0, 0, 0, 0, /*0x2d*/ '+', '{', '}', '|', '~', /*0x32*/ ':', '"', 0, '<', '>', /*0x37*/ '?'}, /* ALT MODIFIER */ { 0, 0, 0, 0, 0, 0 /*0x05*/, 0, 0, 0, 0, 0 /*0x0a*/, 0, 0, 0, 0, 0/*0x0f*/, 0, 0, 0, 0, 0/*0x14*/, 0, 0, 0, 0, 0/*0x19*/, 0, 0, 0, 0, 0/*0x1E*/, 0, 0, 0, 0, 0/*0x23*/, 0, 0, 0, 0, 0 /*enter*/, /*0x28*/ 0, 0, 0, 0, 0, /*0x2d*/ 0, 0, 0, 0, 0, /*0x32*/ 0, 0, 0, 0, 0, /*0x37*/ 0} }; USBHostKeyboard::USBHostKeyboard() { host = USBHost::getHostInst(); init(); } void USBHostKeyboard::init() { dev = NULL; int_in = NULL; report_id = 0; onKey = NULL; onKeyCode = NULL; dev_connected = false; keyboard_intf = -1; keyboard_device_found = false; } bool USBHostKeyboard::connected() { return dev_connected; } bool USBHostKeyboard::connect() { if (dev_connected) { return true; } for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++) { if ((dev = host->getDevice(i)) != NULL) { if (host->enumerate(dev, this)) break; if (keyboard_device_found) { int_in = dev->getEndpoint(keyboard_intf, INTERRUPT_ENDPOINT, IN); if (!int_in) break; USB_INFO("New Keyboard device: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, keyboard_intf); dev->setName("Keyboard", keyboard_intf); host->registerDriver(dev, keyboard_intf, this, &USBHostKeyboard::init); int_in->attach(this, &USBHostKeyboard::rxHandler); host->interruptRead(dev, int_in, report, int_in->getSize(), false); dev_connected = true; return true; } } } init(); return false; } void USBHostKeyboard::rxHandler() { int len = int_in->getLengthTransferred(); int index = (len == 9) ? 1 : 0; int len_listen = int_in->getSize(); uint8_t key = 0; if (len == 8 || len == 9) { uint8_t modifier = (report[index] == 4) ? 3 : report[index]; len_listen = len; key = keymap[modifier][report[index + 2]]; if (key && onKey) { (*onKey)(key); } if ((report[index + 2] || modifier) && onKeyCode) { (*onKeyCode)(report[index + 2], modifier); } } if (dev && int_in) host->interruptRead(dev, int_in, report, len_listen, false); } /*virtual*/ void USBHostKeyboard::setVidPid(uint16_t vid, uint16_t pid) { // we don't check VID/PID for keyboard driver } /*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 { if ((keyboard_intf == -1) && (intf_class == HID_CLASS) && (intf_subclass == 0x01) && (intf_protocol == 0x01)) { keyboard_intf = intf_nb; return true; } return false; } /*virtual*/ bool USBHostKeyboard::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used { if (intf_nb == keyboard_intf) { if (type == INTERRUPT_ENDPOINT && dir == IN) { keyboard_device_found = true; return true; } } return false; } #endif