Zachary Russell / USBHost_Modified

USBHost library with fixes

Dependencies:   mbed-rtos FATFileSystem

Dependents:   mbedica

USBHostHID/USBHostMouse.cpp@0:b176d95bb38f, 2018-12-13 (annotated)

Committer:
zrussell3
Date:
Thu Dec 13 19:24:21 2018 +0000
Revision:
0:b176d95bb38f
Modified USBHost library to fix modifier input

Who changed what in which revision?

UserRevisionLine numberNew contents of line
zrussell3 0:b176d95bb38f 1 /* mbed USBHost Library
zrussell3 0:b176d95bb38f 2 * Copyright (c) 2006-2013 ARM Limited
zrussell3 0:b176d95bb38f 3 *
zrussell3 0:b176d95bb38f 4 * Licensed under the Apache License, Version 2.0 (the "License");
zrussell3 0:b176d95bb38f 5 * you may not use this file except in compliance with the License.
zrussell3 0:b176d95bb38f 6 * You may obtain a copy of the License at
zrussell3 0:b176d95bb38f 7 *
zrussell3 0:b176d95bb38f 8 * http://www.apache.org/licenses/LICENSE-2.0
zrussell3 0:b176d95bb38f 9 *
zrussell3 0:b176d95bb38f 10 * Unless required by applicable law or agreed to in writing, software
zrussell3 0:b176d95bb38f 11 * distributed under the License is distributed on an "AS IS" BASIS,
zrussell3 0:b176d95bb38f 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
zrussell3 0:b176d95bb38f 13 * See the License for the specific language governing permissions and
zrussell3 0:b176d95bb38f 14 * limitations under the License.
zrussell3 0:b176d95bb38f 15 */
zrussell3 0:b176d95bb38f 16
zrussell3 0:b176d95bb38f 17 #include "USBHostMouse.h"
zrussell3 0:b176d95bb38f 18
zrussell3 0:b176d95bb38f 19 #if USBHOST_MOUSE
zrussell3 0:b176d95bb38f 20
zrussell3 0:b176d95bb38f 21 USBHostMouse::USBHostMouse() {
zrussell3 0:b176d95bb38f 22 host = USBHost::getHostInst();
zrussell3 0:b176d95bb38f 23 init();
zrussell3 0:b176d95bb38f 24 }
zrussell3 0:b176d95bb38f 25
zrussell3 0:b176d95bb38f 26 void USBHostMouse::init() {
zrussell3 0:b176d95bb38f 27 dev = NULL;
zrussell3 0:b176d95bb38f 28 int_in = NULL;
zrussell3 0:b176d95bb38f 29 onUpdate = NULL;
zrussell3 0:b176d95bb38f 30 onButtonUpdate = NULL;
zrussell3 0:b176d95bb38f 31 onXUpdate = NULL;
zrussell3 0:b176d95bb38f 32 onYUpdate = NULL;
zrussell3 0:b176d95bb38f 33 onZUpdate = NULL;
zrussell3 0:b176d95bb38f 34 report_id = 0;
zrussell3 0:b176d95bb38f 35 dev_connected = false;
zrussell3 0:b176d95bb38f 36 mouse_device_found = false;
zrussell3 0:b176d95bb38f 37 mouse_intf = -1;
zrussell3 0:b176d95bb38f 38
zrussell3 0:b176d95bb38f 39 buttons = 0;
zrussell3 0:b176d95bb38f 40 x = 0;
zrussell3 0:b176d95bb38f 41 y = 0;
zrussell3 0:b176d95bb38f 42 z = 0;
zrussell3 0:b176d95bb38f 43 }
zrussell3 0:b176d95bb38f 44
zrussell3 0:b176d95bb38f 45 bool USBHostMouse::connected() {
zrussell3 0:b176d95bb38f 46 return dev_connected;
zrussell3 0:b176d95bb38f 47 }
zrussell3 0:b176d95bb38f 48
zrussell3 0:b176d95bb38f 49 bool USBHostMouse::connect() {
zrussell3 0:b176d95bb38f 50
zrussell3 0:b176d95bb38f 51 if (dev_connected) {
zrussell3 0:b176d95bb38f 52 return true;
zrussell3 0:b176d95bb38f 53 }
zrussell3 0:b176d95bb38f 54
zrussell3 0:b176d95bb38f 55 for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++) {
zrussell3 0:b176d95bb38f 56 if ((dev = host->getDevice(i)) != NULL) {
zrussell3 0:b176d95bb38f 57
zrussell3 0:b176d95bb38f 58 if(host->enumerate(dev, this))
zrussell3 0:b176d95bb38f 59 break;
zrussell3 0:b176d95bb38f 60
zrussell3 0:b176d95bb38f 61 if (mouse_device_found) {
zrussell3 0:b176d95bb38f 62
zrussell3 0:b176d95bb38f 63 int_in = dev->getEndpoint(mouse_intf, INTERRUPT_ENDPOINT, IN);
zrussell3 0:b176d95bb38f 64 if (!int_in)
zrussell3 0:b176d95bb38f 65 break;
zrussell3 0:b176d95bb38f 66
zrussell3 0:b176d95bb38f 67 USB_INFO("New Mouse device: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, mouse_intf);
zrussell3 0:b176d95bb38f 68 dev->setName("Mouse", mouse_intf);
zrussell3 0:b176d95bb38f 69 host->registerDriver(dev, mouse_intf, this, &USBHostMouse::init);
zrussell3 0:b176d95bb38f 70
zrussell3 0:b176d95bb38f 71 int_in->attach(this, &USBHostMouse::rxHandler);
zrussell3 0:b176d95bb38f 72 host->interruptRead(dev, int_in, report, int_in->getSize(), false);
zrussell3 0:b176d95bb38f 73
zrussell3 0:b176d95bb38f 74 dev_connected = true;
zrussell3 0:b176d95bb38f 75 return true;
zrussell3 0:b176d95bb38f 76 }
zrussell3 0:b176d95bb38f 77 }
zrussell3 0:b176d95bb38f 78 }
zrussell3 0:b176d95bb38f 79 init();
zrussell3 0:b176d95bb38f 80 return false;
zrussell3 0:b176d95bb38f 81 }
zrussell3 0:b176d95bb38f 82
zrussell3 0:b176d95bb38f 83 void USBHostMouse::rxHandler() {
zrussell3 0:b176d95bb38f 84 int len_listen = int_in->getSize();
zrussell3 0:b176d95bb38f 85
zrussell3 0:b176d95bb38f 86 if (onUpdate) {
zrussell3 0:b176d95bb38f 87 (*onUpdate)(report[0] & 0x07, report[1], report[2], report[3]);
zrussell3 0:b176d95bb38f 88 }
zrussell3 0:b176d95bb38f 89
zrussell3 0:b176d95bb38f 90 if (onButtonUpdate && (buttons != (report[0] & 0x07))) {
zrussell3 0:b176d95bb38f 91 (*onButtonUpdate)(report[0] & 0x07);
zrussell3 0:b176d95bb38f 92 }
zrussell3 0:b176d95bb38f 93
zrussell3 0:b176d95bb38f 94 if (onXUpdate && (x != report[1])) {
zrussell3 0:b176d95bb38f 95 (*onXUpdate)(report[1]);
zrussell3 0:b176d95bb38f 96 }
zrussell3 0:b176d95bb38f 97
zrussell3 0:b176d95bb38f 98 if (onYUpdate && (y != report[2])) {
zrussell3 0:b176d95bb38f 99 (*onYUpdate)(report[2]);
zrussell3 0:b176d95bb38f 100 }
zrussell3 0:b176d95bb38f 101
zrussell3 0:b176d95bb38f 102 if (onZUpdate && (z != report[3])) {
zrussell3 0:b176d95bb38f 103 (*onZUpdate)(report[3]);
zrussell3 0:b176d95bb38f 104 }
zrussell3 0:b176d95bb38f 105
zrussell3 0:b176d95bb38f 106 // update mouse state
zrussell3 0:b176d95bb38f 107 buttons = report[0] & 0x07;
zrussell3 0:b176d95bb38f 108 x = report[1];
zrussell3 0:b176d95bb38f 109 y = report[2];
zrussell3 0:b176d95bb38f 110 z = report[3];
zrussell3 0:b176d95bb38f 111
zrussell3 0:b176d95bb38f 112 if (dev)
zrussell3 0:b176d95bb38f 113 host->interruptRead(dev, int_in, report, len_listen, false);
zrussell3 0:b176d95bb38f 114 }
zrussell3 0:b176d95bb38f 115
zrussell3 0:b176d95bb38f 116 /*virtual*/ void USBHostMouse::setVidPid(uint16_t vid, uint16_t pid)
zrussell3 0:b176d95bb38f 117 {
zrussell3 0:b176d95bb38f 118 // we don't check VID/PID for mouse driver
zrussell3 0:b176d95bb38f 119 }
zrussell3 0:b176d95bb38f 120
zrussell3 0:b176d95bb38f 121 /*virtual*/ bool USBHostMouse::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
zrussell3 0:b176d95bb38f 122 {
zrussell3 0:b176d95bb38f 123 if ((mouse_intf == -1) &&
zrussell3 0:b176d95bb38f 124 (intf_class == HID_CLASS) &&
zrussell3 0:b176d95bb38f 125 (intf_subclass == 0x01) &&
zrussell3 0:b176d95bb38f 126 (intf_protocol == 0x02)) {
zrussell3 0:b176d95bb38f 127 mouse_intf = intf_nb;
zrussell3 0:b176d95bb38f 128 return true;
zrussell3 0:b176d95bb38f 129 }
zrussell3 0:b176d95bb38f 130 return false;
zrussell3 0:b176d95bb38f 131 }
zrussell3 0:b176d95bb38f 132
zrussell3 0:b176d95bb38f 133 /*virtual*/ bool USBHostMouse::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used
zrussell3 0:b176d95bb38f 134 {
zrussell3 0:b176d95bb38f 135 if (intf_nb == mouse_intf) {
zrussell3 0:b176d95bb38f 136 if (type == INTERRUPT_ENDPOINT && dir == IN) {
zrussell3 0:b176d95bb38f 137 mouse_device_found = true;
zrussell3 0:b176d95bb38f 138 return true;
zrussell3 0:b176d95bb38f 139 }
zrussell3 0:b176d95bb38f 140 }
zrussell3 0:b176d95bb38f 141 return false;
zrussell3 0:b176d95bb38f 142 }
zrussell3 0:b176d95bb38f 143
zrussell3 0:b176d95bb38f 144 #endif