usb_init.c

基于ＳＴ ＡＲＭ处理器的ＵＳＢ通信的演示

/******************** (C) COPYRIGHT 2006 STMicroelectronics ********************
* File Name          : main.c
* Author             : wuyuhuai
* Date First Issued  : 4/40/2008 : V1.0
* Description        : str training demo main file
********************************************************************************
* History:
* 09/18/2006 : V3.0
* 09/01/2006 : V2.0
* 10/27/2003 : V1.0
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/

/* Includes ------------------------------------------------------------------*/
#include "usb_lib.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/

/*  The number of current endpoint, it will be used to specify an endpoint */
 u8	EPindex;
/*  The number of current device, it is an index to the Device_Table */
/* u8	Device_no; */
/*  Points to the DEVICE_INFO structure of current device */
/*  The purpose of this register is to speed up the execution */
DEVICE_INFO *pInformation;
/*  Points to the DEVICE_PROP structure of current device */
/*  The purpose of this register is to speed up the execution */
DEVICE_PROP *pProperty;
/*  Temporary save the state of Rx & Tx status. */
/*  Whenever the Rx or Tx state is changed, its value is saved */
/*  in this variable first and will be set to the EPRB or EPRA */
/*  at the end of interrupt process */
 u16	SaveState ;
 u16  wInterrupt_Mask;
 DEVICE_INFO	Device_Info;

USER_STANDARD_REQUESTS  *pUser_Standard_Requests;
/* Extern variables ----------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

/*******************************************************************************
* Function Name  : USB_Init
* Description    : USB system initialization
* Input          :
* Output         :
* Return         :
*******************************************************************************/
void USB_Init(void)
{
  pInformation = &Device_Info;
  pInformation->ControlState = 2;
  pProperty = &Device_Property;
  pUser_Standard_Requests = &User_Standard_Requests;
  /* Initialize devices one by one */
  pProperty->Init();
}
/******************* (C) COPYRIGHT 2006 STMicroelectronics *****END OF FILE****/