cancontroller.c

美国wind river 公司的CAN总线源代码

/* canController.c - implementation of CAN Controller routines */

/* Copyright 2001 Wind River Systems, Inc. */

/* 
modification history 
--------------------
09nov01,dnb modified for integration into Tornado
12jul01,jac written

*/

/* 

DESCRIPTION
implementation of CAN controller routines

*/

/* includes */
#include <vxWorks.h>
#include <errnoLib.h>
#include <CAN/wnCAN.h>
#include <CAN/canBoard.h>
#include <CAN/canController.h>

/* forward declarations */ 
void I82527_establishLinks(struct WNCAN_Device *pDev);
void SJA1000_establishLinks(struct WNCAN_Device *pDev);
void TouCAN_establishLinks(struct WNCAN_Device *pDev);
void MCP2510_establishLinks(struct WNCAN_Device *pDev);

/************************************************************************
*
* WNCAN_Controller_establishLinks - connect the function pointers in the
*                                 Device structure to the appropriate
*                                 routines. Set the number of channels in 
*                                 the controller structure 
*
*
* RETURNS: OK or ERROR
*   
* ERRNO: S_can_unknown_controller
*
*/
STATUS WNCAN_Controller_establishLinks
(
    struct WNCAN_Device *pDev, 
    WNCAN_ControllerType ctrlType
)
{
    STATUS retCode = OK;
    
    switch(ctrlType)
    {
#ifdef INCLUDE_I82527
        case WNCAN_I82527:
            I82527_establishLinks(pDev);            
            break;
#endif
#ifdef INCLUDE_SJA1000
        case WNCAN_SJA1000:
            SJA1000_establishLinks(pDev);           
            break;
#endif
#ifdef INCLUDE_TOUCAN
        case WNCAN_TOUCAN:
            TouCAN_establishLinks(pDev);                        
            break;
#endif
#ifdef INCLUDE_MCP2510
        case WNCAN_MCP2510:
            MCP2510_establishLinks(pDev);
            break;
#endif

        default:
            errnoSet(S_can_unknown_controller);
            retCode = ERROR;
            break; 
    }   

    return retCode;
}