lib/main/STM32_USB-FS-Device_Driver/src/usb_init.c

   1 /**
   2   ******************************************************************************
   3   * @file    usb_init.c
   4   * @author  MCD Application Team
   5   * @version V4.0.0
   6   * @date    28-August-2012
   7   * @brief   Initialization routines & global variables
   8   ******************************************************************************
   9   * @attention
  10   *
  11   * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
  12   *
  13   * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
  14   * You may not use this file except in compliance with the License.
  15   * You may obtain a copy of the License at:
  16   *
  17   *        http://www.st.com/software_license_agreement_liberty_v2
  18   *
  19   * Unless required by applicable law or agreed to in writing, software
  20   * distributed under the License is distributed on an "AS IS" BASIS,
  21   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  22   * See the License for the specific language governing permissions and
  23   * limitations under the License.
  24   *
  25   ******************************************************************************
  26   */
  27
  28
  29 /* Includes ------------------------------------------------------------------*/
  30 #include "usb_lib.h"
  31
  32 /* Private typedef -----------------------------------------------------------*/
  33 /* Private define ------------------------------------------------------------*/
  34 /* Private macro -------------------------------------------------------------*/
  35 /* Private variables ---------------------------------------------------------*/
  36 /*  The number of current endpoint, it will be used to specify an endpoint */
  37  uint8_t        EPindex;
  38 /*  The number of current device, it is an index to the Device_Table */
  39 /* uint8_t      Device_no; */
  40 /*  Points to the DEVICE_INFO structure of current device */
  41 /*  The purpose of this register is to speed up the execution */
  42 DEVICE_INFO *pInformation;
  43 /*  Points to the DEVICE_PROP structure of current device */
  44 /*  The purpose of this register is to speed up the execution */
  45 DEVICE_PROP *pProperty;
  46 /*  Temporary save the state of Rx & Tx status. */
  47 /*  Whenever the Rx or Tx state is changed, its value is saved */
  48 /*  in this variable first and will be set to the EPRB or EPRA */
  49 /*  at the end of interrupt process */
  50 uint16_t        SaveState ;
  51 uint16_t  wInterrupt_Mask;
  52 DEVICE_INFO     Device_Info;
  53 USER_STANDARD_REQUESTS  *pUser_Standard_Requests;
  54
  55 /* Extern variables ----------------------------------------------------------*/
  56 /* Private function prototypes -----------------------------------------------*/
  57 /* Private functions ---------------------------------------------------------*/
  58
  59 /*******************************************************************************
  60 * Function Name  : USB_Init
  61 * Description    : USB system initialization
  62 * Input          : None.
  63 * Output         : None.
  64 * Return         : None.
  65 *******************************************************************************/
  66 void USB_Init(void)
  67 {
  68   pInformation = &Device_Info;
  69   pInformation->ControlState = 2;
  70   pProperty = &Device_Property;
  71   pUser_Standard_Requests = &User_Standard_Requests;
  72   /* Initialize devices one by one */
  73   pProperty->Init();
  74 }
  75
  76 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/