USB composite device example program, drag-and-drop flash writer.
Dependencies: SWD USBDevice mbed BaseDAP
tests/USBMSD2/USB_HID.cpp
- Committer:
- va009039
- Date:
- 2013-09-28
- Revision:
- 1:ea8e179320d7
File content as of revision 1:ea8e179320d7:
/* 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 "stdint.h" #include "USB_HID.h" USB_HID::USB_HID(USBDevice* device, uint8_t output_report_length, uint8_t input_report_length) : _device(device) { output_length = output_report_length; input_length = input_report_length; } bool USB_HID::send(HID_REPORT *report) { return _device->write(HID_EPINT_IN, report->data, report->length, MAX_HID_REPORT_SIZE); } bool USB_HID::sendNB(HID_REPORT *report) { return _device->writeNB(HID_EPINT_IN, report->data, report->length, MAX_HID_REPORT_SIZE); } bool USB_HID::read(HID_REPORT *report) { uint32_t bytesRead = 0; bool result; result = _device->readEP(HID_EPINT_OUT, report->data, &bytesRead, MAX_HID_REPORT_SIZE); if(!_device->readStart(HID_EPINT_OUT, MAX_HID_REPORT_SIZE)) return false; report->length = bytesRead; return result; } bool USB_HID::readNB(HID_REPORT *report) { uint32_t bytesRead = 0; bool result; result = _device->readEP_NB(HID_EPINT_OUT, report->data, &bytesRead, MAX_HID_REPORT_SIZE); report->length = bytesRead; if(!_device->readStart(HID_EPINT_OUT, MAX_HID_REPORT_SIZE)) return false; return result; } /* virtual */ uint8_t * USB_HID::reportDesc() { static uint8_t reportDescriptor[] = { 0x06, 0x00, 0xff, 0x09, 0x01, // usage 0xA1, 0x01, // Collection 0x01 0x15, 0x00, // logical minimum = 0 0x26, 0xFF, 0x00, // logical maximum = 255 0x75, 0x08, // report size = 8 bits 0x95, 0x40, // report count 0x09, 0x01, // usage 0x81, 0x02, // Input (array) 0x95, 0x40, // report count 0x09, 0x01, // usage 0x91, 0x02, // Output (array) 0x95, 0x01, // report count 0x09, 0x01, // usage 0xb1, 0x02, 0xC0 // end collection }; reportLength = sizeof(reportDescriptor); return reportDescriptor; } /* virtual */ uint16_t USB_HID::reportDescLength() { reportDesc(); return reportLength; } bool USB_HID::Request_callback(CONTROL_TRANSFER* transfer, uint8_t* hidDescriptor) { // Process additional standard requests if (transfer->setup.bmRequestType.Type == STANDARD_TYPE) { switch (transfer->setup.bRequest) { case GET_DESCRIPTOR: switch (DESCRIPTOR_TYPE(transfer->setup.wValue)) { case REPORT_DESCRIPTOR: if ((reportDesc() != NULL) && (reportDescLength() != 0)) { transfer->remaining = reportDescLength(); transfer->ptr = reportDesc(); transfer->direction = DEVICE_TO_HOST; return true; } break; case HID_DESCRIPTOR: if (hidDescriptor != NULL) { transfer->remaining = HID_DESCRIPTOR_LENGTH; transfer->ptr = hidDescriptor; transfer->direction = DEVICE_TO_HOST; return true; } break; default: break; } break; default: break; } } if (transfer->setup.bmRequestType.Type == CLASS_TYPE) { switch (transfer->setup.bRequest) { case SET_REPORT: // First byte will be used for report ID outputReport.data[0] = transfer->setup.wValue & 0xff; outputReport.length = transfer->setup.wLength + 1; transfer->remaining = sizeof(outputReport.data) - 1; transfer->ptr = &outputReport.data[1]; transfer->direction = HOST_TO_DEVICE; transfer->notify = true; return true; } } return false; }