USB_API/USB_HID_API/UsbHidReq.c

   1 /*
   2  * UsbHidReq.c
   3  *
   4  * USB HID Request functions
   5  *
   6  * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
   7  *
   8  *
   9  *  Redistribution and use in source and binary forms, with or without
  10  *  modification, are permitted provided that the following conditions
  11  *  are met:
  12  *
  13  *    Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  *
  16  *    Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the
  19  *    distribution.
  20  *
  21  *    Neither the name of Texas Instruments Incorporated nor the names of
  22  *    its contributors may be used to endorse or promote products derived
  23  *    from this software without specific prior written permission.
  24  *
  25  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  26  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  27  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  28  *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  29  *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  30  *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  31  *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  32  *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  33  *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  34  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  35  *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  36  *
  37  */
  38
  39 /*----------------------------------------------------------------------------+
  40 |                                                                             |
  41 |                              Texas Instruments                              |
  42 |                                                                             |
  43 |                          MSP430 USB-Example (HID Driver)                    |
  44 |                                                                             |
  45 +-----------------------------------------------------------------------------+
  46 |  Source: UsbHidReq.c, File Version 1.00 2009/12/03                          |
  47 |  Author: RSTO                                                               |
  48 |                                                                             |
  49 |  WHO          WHEN         WHAT                                             |
  50 |  ---          ----------   ------------------------------------------------ |
  51 |  RSTO         2009/03/03   born                                             |
  52 |  MSP/Biju     2009/10/21   Changes for composite support                    |
  53 +----------------------------------------------------------------------------*/
  54
  55 #include "../USB_Common/device.h"
  56 #include "../USB_Common/types.h"              // Basic Type declarations
  57 #include "../USB_Common/defMSP430USB.h"
  58 #include "../USB_Common/usb.h"                // USB-specific Data Structures
  59 #include "UsbHidReportHandler.h"
  60 #include <descriptors.h>
  61
  62 #ifdef _HID_
  63
  64 VOID usbClearOEP0ByteCount(VOID);
  65 VOID usbSendDataPacketOnEP0(PBYTE pbBuffer);
  66 VOID usbReceiveDataPacketOnEP0(PBYTE pbBuffer);
  67
  68
  69 VOID usbGetHidDescriptor(VOID)
  70 {
  71     static BYTE intfNum;
  72     if(intfNum >= HID_NUM_INTERFACES)
  73     {
  74       intfNum = 0;
  75     }
  76     usbClearOEP0ByteCount();
  77     wBytesRemainingOnIEP0 = 9;
  78     usbSendDataPacketOnEP0((PBYTE)&abromConfigurationDescriptorGroup.stHid[intfNum].blength_hid_descriptor);
  79     intfNum++;
  80 }
  81
  82 //----------------------------------------------------------------------------
  83 VOID usbGetReportDescriptor(VOID)
  84 {
  85     wBytesRemainingOnIEP0 = SIZEOF_REPORT_DESCRIPTOR;
  86     usbSendDataPacketOnEP0((PBYTE)&abromReportDescriptor);
  87 }
  88
  89 //----------------------------------------------------------------------------
  90
  91 VOID usbSetReport(VOID)
  92 {
  93     usbReceiveDataPacketOnEP0((PBYTE) &abUsbRequestIncomingData);     // receive data over EP0 from Host
  94 }
  95
  96 //----------------------------------------------------------------------------
  97
  98 VOID usbGetReport(VOID)
  99 {
 100     switch((BYTE)tSetupPacket.wValue)
 101     {
 102        case USB_REQ_HID_FEATURE:
 103             Handler_InFeature();
 104             break;
 105        case USB_REQ_HID_INPUT:
 106             Handler_InReport();
 107             break;
 108        default:;
 109     }
 110 }
 111
 112 #endif //_HID_
 113 /*----------------------------------------------------------------------------+
 114 | End of source file                                                          |
 115 +----------------------------------------------------------------------------*/
 116 /*------------------------ Nothing Below This Line --------------------------*/