uda13xx.c

用于TM1300/PNX1300系列DSP（主要用于视频处理）的设备库的源码

/*
 * Copyright (c) 1999 by TriMedia Technologies. 
 *
 * +------------------------------------------------------------------+
 * | This software is furnished under a license and may only be used  |
 * | and copied in accordance with the terms and conditions of  such  |
 * | a license and with the inclusion of this copyright notice. This  |
 * | software or any other copies of this software may not be provided|
 * | or otherwise made available to any other person.  The ownership  |
 * | and title of this software is not transferred.                   |
 * |                                                                  |
 * | The information in this software is subject  to change without   |
 * | any  prior notice and should not be construed as a commitment by |
 * | TriMedia Technologies.                                           |
 * |                                                                  |
 * | this code and information is provided "as is" without any        |
 * | warranty of any kind, either expressed or implied, including but |
 * | not limited to the implied warranties of merchantability and/or  |
 * | fitness for any particular purpose.                              |
 * +------------------------------------------------------------------+
 *
 *  Module name              : uda13xx.c    1.7
 *
 *  Last update              : 18:43:51 - 00/11/09
 *
 *  Description              :
 *      
 *
 *
 */

#include <tm1/tmLibdevErr.h>
#include <tm1/tmIIC.h>
#include <tmlib/tmtypes.h>

#include <tm1/tmAssert.h>
#include <tmlib/dprintf.h>      /* for debugging with DP(()) */


#include "uda13xx.h"

/*-------------------------------statics-------------------------------------*/
/*------------------------------functions------------------------------------*/
extern tmLibdevErr_t uda13xxInitOutput(puda13xxParam_t p, puda13xxOutputParam_t op)
{
    tmLibdevErr_t err;

    switch (p->mode)
    {
    case uda13xxIICMode:
        /* L3 with IIC */
        return UDA13XX_ERR_MODE_NOT_SUPPORTED;
    case uda13xxGPIOMode:
    case uda13xxXIOMode:
    {
        /* L3 with XIO */
        puda13xxRegisters_t regs     = p->regs;
        pl3Param_t          l3params = (pl3Param_t) (p->modeParams);
        Char                data[4];
        
        tmAssert(regs, -1);
        tmAssert(l3params, -1);

        /* set default values for registers */
        l3params->data = data;
        /* write status registers */
        data[0] = regs->status0 = 0x20;
        data[1] = regs->status1 = 0x80;
        l3params->l3Address     = (UDA13XX_L3_ADDRESS << 2) | UDA13XX_L3_STATUS_MODE;
        l3params->numberOfBytes = 2;
        l3params->data          = data;
        err = l3Write(l3params);
        tmAssert(err == TMLIBDEV_OK, err);
        
        /* write data registers */
        data[0] = regs->data0   = 0x00;
        data[1] = regs->data1   = 0x40;
        data[2] = regs->data2   = 0x80;
        data[3] = regs->data3   = 0xc1;
        l3params->l3Address     = (UDA13XX_L3_ADDRESS << 2) | UDA13XX_L3_DATA_MODE;
        l3params->numberOfBytes = 4;
        l3params->data          = data;
        err |= l3Write(l3params);
        tmAssert(err == TMLIBDEV_OK, err);
    }
        break;
    default:
        return UDA13XX_ERR_MODE_NOT_SUPPORTED;
    }
 
    return err;
}


extern tmLibdevErr_t uda13xxInitInput(puda13xxParam_t p, puda13xxInputParam_t ip)
{
    return TMLIBDEV_OK;
}

extern tmLibdevErr_t uda13xxConfigOutput(puda13xxParam_t p, UInt32 subAddr, Pointer value)
{
    return TMLIBDEV_OK;
}

extern tmLibdevErr_t uda13xxConfigInput(puda13xxParam_t p, UInt32 subAddr, Pointer value)
{
    return TMLIBDEV_OK;
}