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   1 /*\r
   2  * @brief USB ROM based HID Class driver functions\r
   3  *\r
   4  * @note\r
   5  * Copyright(C) NXP Semiconductors, 2012\r
   6   * All rights reserved.\r
   7  *\r
   8  * @par\r
   9  * Software that is described herein is for illustrative purposes only\r
  10  * which provides customers with programming information regarding the\r
  11  * LPC products.  This software is supplied "AS IS" without any warranties of\r
  12  * any kind, and NXP Semiconductors and its licensor disclaim any and\r
  13  * all warranties, express or implied, including all implied warranties of\r
  14  * merchantability, fitness for a particular purpose and non-infringement of\r
  15  * intellectual property rights.  NXP Semiconductors assumes no responsibility\r
  16  * or liability for the use of the software, conveys no license or rights under any\r
  17  * patent, copyright, mask work right, or any other intellectual property rights in\r
  18  * or to any products. NXP Semiconductors reserves the right to make changes\r
  19  * in the software without notification. NXP Semiconductors also makes no\r
  20  * representation or warranty that such application will be suitable for the\r
  21  * specified use without further testing or modification.\r
  22  *\r
  23  * @par\r
  24  * Permission to use, copy, modify, and distribute this software and its\r
  25  * documentation is hereby granted, under NXP Semiconductors' and its\r
  26  * licensor's relevant copyrights in the software, without fee, provided that it\r
  27  * is used in conjunction with NXP Semiconductors microcontrollers.  This\r
  28  * copyright, permission, and disclaimer notice must appear in all copies of\r
  29  * this code.\r
  30  */\r
  31 \r
  32 #define  __INCLUDE_FROM_USB_DRIVER\r
  33 #include "../../USBMode.h"\r
  34 \r
  35 #if defined(USB_CAN_BE_DEVICE)\r
  36 #include "../../Device.h"\r
  37 #include "../../Endpoint.h"\r
  38 \r
  39 #if defined(USB_DEVICE_ROM_DRIVER)\r
  40 \r
  41 /* FIXME Abstract & make this size configurable */\r
  42 //#define ROMDRIVER_HID_MEM_SIZE        0x800\r
  43 //uint8_t usb_RomDriver_HID_buffer[ROMDRIVER_HID_MEM_SIZE] ATTR_ALIGNED(4) __BSS(USBRAM_SECTION);\r
  44 uint8_t *reportinbuffer;\r
  45 uint32_t reportinsize;\r
  46 \r
  47 ErrorCode_t GetReport( USBD_HANDLE_T hHid, USB_SETUP_PACKET* pSetup, uint8_t** pBuffer, uint16_t* plength);\r
  48 ErrorCode_t GetReport( USBD_HANDLE_T hHid, USB_SETUP_PACKET* pSetup, uint8_t** pBuffer, uint16_t* plength)\r
  49 {\r
  50         uint8_t report[reportinsize];\r
  51 \r
  52         if(reportinbuffer == NULL)\r
  53                 return (LPC_OK);\r
  54         memset(report, 0,reportinsize);\r
  55         /* ReportID = SetupPacket.wValue.WB.L; */\r
  56         switch (pSetup->wValue.WB.H) {\r
  57         case HID_REPORT_INPUT:\r
  58                 if(CALLBACK_UsbdHid_IsReportChanged())\r
  59                 {\r
  60                         *pBuffer = reportinbuffer;\r
  61                         CALLBACK_UsbdHid_SetReportChange(false);\r
  62                 }\r
  63                 else\r
  64                 {\r
  65                         *pBuffer = report;\r
  66                 }\r
  67                 *plength = (uint16_t)reportinsize;\r
  68           break;\r
  69         case HID_REPORT_OUTPUT:\r
  70           return (ERR_USBD_STALL);          /* Not Supported */\r
  71         case HID_REPORT_FEATURE:\r
  72           return (ERR_USBD_STALL);          /* Not Supported */\r
  73         }\r
  74         return (LPC_OK);\r
  75 }\r
  76 ErrorCode_t SetReport( USBD_HANDLE_T hHid, USB_SETUP_PACKET* pSetup, uint8_t** pBuffer, uint16_t length);\r
  77 ErrorCode_t SetReport( USBD_HANDLE_T hHid, USB_SETUP_PACKET* pSetup, uint8_t** pBuffer, uint16_t length)\r
  78 {\r
  79   /* we will reuse standard EP0Buf */\r
  80   if (length == 0)\r
  81     return LPC_OK;\r
  82   /* ReportID = SetupPacket.wValue.WB.L; */\r
  83   switch (pSetup->wValue.WB.H) {\r
  84     case HID_REPORT_INPUT:\r
  85       return (ERR_USBD_STALL);          /* Not Supported */\r
  86     case HID_REPORT_OUTPUT:\r
  87         CALLBACK_UsbdHid_SetReport(pBuffer,(uint32_t)length);\r
  88       break;\r
  89     case HID_REPORT_FEATURE:\r
  90       return (ERR_USBD_STALL);          /* Not Supported */\r
  91   }\r
  92   return (LPC_OK);\r
  93 }\r
  94 ErrorCode_t EpInHdlr (USBD_HANDLE_T hUsb, void* data, uint32_t event);\r
  95 ErrorCode_t EpInHdlr (USBD_HANDLE_T hUsb, void* data, uint32_t event)\r
  96 {\r
  97         USB_HID_CTRL_T* pHidCtrl = (USB_HID_CTRL_T*)data;\r
  98         uint8_t report[reportinsize];\r
  99 \r
 100         if(reportinbuffer == NULL)\r
 101                 return (LPC_OK);\r
 102         memset(report, 0,reportinsize);\r
 103         switch (event) {\r
 104         case USB_EVT_IN:\r
 105                 if(CALLBACK_UsbdHid_IsReportChanged())\r
 106                 {\r
 107                         USBD_API->hw->WriteEP(hUsb, pHidCtrl->epin_adr, reportinbuffer, reportinsize);\r
 108                         CALLBACK_UsbdHid_SetReportChange(false);\r
 109                 }\r
 110                 else\r
 111                 {\r
 112                         USBD_API->hw->WriteEP(hUsb, pHidCtrl->epin_adr, reportinbuffer, reportinsize);\r
 113                 }\r
 114                 break;\r
 115         }\r
 116         return LPC_OK;\r
 117 }\r
 118 void UsbdHid_Init(void)\r
 119 {\r
 120           USBD_HID_INIT_PARAM_T hid_param;\r
 121           USB_HID_REPORT_T reports_data;\r
 122 \r
 123           memset((void*)&hid_param, 0, sizeof(USBD_HID_INIT_PARAM_T));\r
 124           /* Init reports_data */\r
 125           reports_data.len = (uint16_t)CALLBACK_UsbdHid_Register_ReportDescriptor(&reports_data.desc);\r
 126           reports_data.idle_time = 0;\r
 127           /* Init reports buffer */\r
 128           reportinsize = CALLBACK_UsbdHid_Register_ReportInBuffer(&reportinbuffer);\r
 129 \r
 130           /* HID paramas */\r
 131           hid_param.mem_base = (uint32_t)usb_RomDriver_HID_buffer;\r
 132           hid_param.mem_size = (uint32_t)ROMDRIVER_HID_MEM_SIZE;\r
 133           hid_param.max_reports = 1;            //TODO let user configures this number\r
 134           hid_param.intf_desc = (uint8_t*)CALLBACK_UsbdHid_Register_InterfaceDescriptor();\r
 135           hid_param.report_data  = &reports_data;\r
 136           /* user defined functions */\r
 137           hid_param.HID_GetReport = GetReport;\r
 138           hid_param.HID_SetReport = SetReport;\r
 139           hid_param.HID_EpIn_Hdlr = EpInHdlr;\r
 140 \r
 141           USBD_API->hid->init(UsbHandle, &hid_param);\r
 142 }\r
 143 \r
 144 #endif /* USB_DEVICE_ROM_DRIVER */\r
 145 \r
 146 #endif /* USB_CAN_BE_DEVICE */\r