2018.07.26
Dependencies: FATFileSystem3 mbed-rtos
Fork of USBHost by
Diff: USBHostHID/USBHostMouse.cpp
- Revision:
- 0:a554658735bf
- Child:
- 4:b320d68e98e7
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/USBHostHID/USBHostMouse.cpp Wed Mar 06 16:27:14 2013 +0000 @@ -0,0 +1,117 @@ +/* Copyright (c) 2010-2011 mbed.org, MIT License +* +* Permission is hereby granted, free of charge, to any person obtaining a copy of this software +* and associated documentation files (the "Software"), to deal in the Software without +* restriction, including without limitation the rights to use, copy, modify, merge, publish, +* distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the +* Software is furnished to do so, subject to the following conditions: +* +* The above copyright notice and this permission notice shall be included in all copies or +* substantial portions of the Software. +* +* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING +* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +*/ + +#include "USBHostMouse.h" + +#if USBHOST_MOUSE + +USBHostMouse::USBHostMouse() { + host = USBHost::getHostInst(); + init(); +} + +void USBHostMouse::init() { + dev = NULL; + int_in = NULL; + onUpdate = NULL; + report_id = 0; + dev_connected = false; + mouse_device_found = false; + mouse_intf = -1; +} + +bool USBHostMouse::connected() { + return dev_connected; +} + +bool USBHostMouse::connect() { + + U8 i; + + if (dev_connected) { + return true; + } + + for (i = 0; i < MAX_DEVICE_CONNECTED; i++) { + if ((dev = host->getDevice(i)) != NULL) { + + if(host->enumerate(dev, this)) + break; + + if (mouse_device_found) { + + int_in = dev->getEndpoint(mouse_intf, INTERRUPT_ENDPOINT, IN); + if (!int_in) + break; + + USB_INFO("New Mouse device: VID:%04x PID:%04x [dev: %p]", dev->getVid(), dev->getPid(), dev); + dev->setName("Mouse"); + host->registerDriver(dev, mouse_intf, this, &USBHostMouse::init); + + int_in->attach(this, &USBHostMouse::rxHandler); + host->interruptRead(dev, int_in, report, int_in->getSize(), false); + + dev_connected = true; + return true; + } + } + } + init(); + return false; +} + +void USBHostMouse::rxHandler() { + int len_listen = int_in->getSize(); + int len = int_in->getLengthTransferred(); + if (onUpdate) { + (*onUpdate)(report[0] & 0x07, report[1], report[2], report[3]); + } + if (dev != NULL) + host->interruptRead(dev, int_in, report, len_listen, false); +} + +/*virtual*/ void USBHostMouse::setVidPid(uint16_t vid, uint16_t pid) +{ + // we don't check VID/PID for mouse driver +} + +/*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 +{ + if ((mouse_intf == -1) && + (intf_class == HID_CLASS) && + (intf_subclass == 0x01) && + (intf_protocol == 0x02)) { + mouse_intf = intf_nb; + return true; + } + return false; +} + +/*virtual*/ bool USBHostMouse::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used +{ + if (intf_nb == mouse_intf) { + if (type == INTERRUPT_ENDPOINT && dir == IN) { + mouse_device_found = true; + return true; + } + } + return false; +} + +#endif +