Fork of the USBHost library by mbed.
Dependencies: FATFileSystem mbed-rtos
Fork of USBHost by
USBHostMouse.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 "USBHostMouse.h" 00018 00019 #if USBHOST_MOUSE 00020 00021 USBHostMouse::USBHostMouse() { 00022 host = USBHost::getHostInst(); 00023 init(); 00024 } 00025 00026 void USBHostMouse::init() { 00027 dev = NULL; 00028 int_in = NULL; 00029 onUpdate = NULL; 00030 onButtonUpdate = NULL; 00031 onXUpdate = NULL; 00032 onYUpdate = NULL; 00033 onZUpdate = NULL; 00034 report_id = 0; 00035 dev_connected = false; 00036 mouse_device_found = false; 00037 mouse_intf = -1; 00038 00039 buttons = 0; 00040 x = 0; 00041 y = 0; 00042 z = 0; 00043 } 00044 00045 bool USBHostMouse::connected() { 00046 return dev_connected; 00047 } 00048 00049 bool USBHostMouse::connect() { 00050 int len_listen; 00051 00052 if (dev_connected) { 00053 return true; 00054 } 00055 00056 for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++) { 00057 if ((dev = host->getDevice(i)) != NULL) { 00058 00059 if(host->enumerate(dev, this)) 00060 break; 00061 00062 if (mouse_device_found) { 00063 00064 int_in = dev->getEndpoint(mouse_intf, INTERRUPT_ENDPOINT, IN); 00065 if (!int_in) 00066 break; 00067 00068 USB_INFO("New Mouse device: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, mouse_intf); 00069 dev->setName("Mouse", mouse_intf); 00070 host->registerDriver(dev, mouse_intf, this, &USBHostMouse::init); 00071 00072 int_in->attach(this, &USBHostMouse::rxHandler); 00073 len_listen = int_in->getSize(); 00074 if (len_listen > sizeof(report)) { 00075 len_listen = sizeof(report); 00076 } 00077 host->interruptRead(dev, int_in, report, len_listen, false); 00078 00079 dev_connected = true; 00080 return true; 00081 } 00082 } 00083 } 00084 init(); 00085 return false; 00086 } 00087 00088 void USBHostMouse::rxHandler() { 00089 int len_listen = int_in->getSize(); 00090 00091 if (onUpdate) { 00092 (*onUpdate)(report[0] & 0x07, report[1], report[2], report[3]); 00093 } 00094 00095 if (onButtonUpdate && (buttons != (report[0] & 0x07))) { 00096 (*onButtonUpdate)(report[0] & 0x07); 00097 } 00098 00099 if (onXUpdate && (x != report[1])) { 00100 (*onXUpdate)(report[1]); 00101 } 00102 00103 if (onYUpdate && (y != report[2])) { 00104 (*onYUpdate)(report[2]); 00105 } 00106 00107 if (onZUpdate && (z != report[3])) { 00108 (*onZUpdate)(report[3]); 00109 } 00110 00111 // update mouse state 00112 buttons = report[0] & 0x07; 00113 x = report[1]; 00114 y = report[2]; 00115 z = report[3]; 00116 00117 if (len_listen > sizeof(report)) { 00118 len_listen = sizeof(report); 00119 } 00120 00121 if (dev) 00122 host->interruptRead(dev, int_in, report, len_listen, false); 00123 } 00124 00125 /*virtual*/ void USBHostMouse::setVidPid(uint16_t vid, uint16_t pid) 00126 { 00127 // we don't check VID/PID for mouse driver 00128 } 00129 00130 /*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 00131 { 00132 if ((mouse_intf == -1) && 00133 (intf_class == HID_CLASS) && 00134 (intf_subclass == 0x01) && 00135 (intf_protocol == 0x02)) { 00136 mouse_intf = intf_nb; 00137 return true; 00138 } 00139 return false; 00140 } 00141 00142 /*virtual*/ bool USBHostMouse::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used 00143 { 00144 if (intf_nb == mouse_intf) { 00145 if (type == INTERRUPT_ENDPOINT && dir == IN) { 00146 mouse_device_found = true; 00147 return true; 00148 } 00149 } 00150 return false; 00151 } 00152 00153 #endif
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