dtsec_mii_acc.c

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    1 /*
    2  * Copyright 2008-2013 Freescale Semiconductor Inc.
    3  *
    4  * Redistribution and use in source and binary forms, with or without
    5  * modification, are permitted provided that the following conditions are met:
    6  *     * Redistributions of source code must retain the above copyright
    7  *       notice, this list of conditions and the following disclaimer.
    8  *     * Redistributions in binary form must reproduce the above copyright
    9  *       notice, this list of conditions and the following disclaimer in the
   10  *       documentation and/or other materials provided with the distribution.
   11  *     * Neither the name of Freescale Semiconductor nor the
   12  *       names of its contributors may be used to endorse or promote products
   13  *       derived from this software without specific prior written permission.
   14  *
   15  *
   16  * ALTERNATIVELY, this software may be distributed under the terms of the
   17  * GNU General Public License ("GPL") as published by the Free Software
   18  * Foundation, either version 2 of that License or (at your option) any
   19  * later version.
   20  *
   21  * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
   22  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   23  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   24  * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
   25  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   26  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   27  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   28  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   31  */
   32 
   33 
   34 /******************************************************************************
   35  @File          dtsec_mii_acc.c
   36 
   37  @Description   FM dtsec MII register access MAC ...
   38 *//***************************************************************************/
   39 
   40 #include "error_ext.h"
   41 #include "std_ext.h"
   42 #include "fm_mac.h"
   43 #include "dtsec.h"
   44 #include "fsl_fman_dtsec_mii_acc.h"
   45 
   46 
   47 /*****************************************************************************/
   48 t_Error DTSEC_MII_WritePhyReg(t_Handle    h_Dtsec,
   49                               uint8_t     phyAddr,
   50                               uint8_t     reg,
   51                               uint16_t    data)
   52 {
   53     t_Dtsec              *p_Dtsec = (t_Dtsec *)h_Dtsec;
   54     struct dtsec_mii_reg *miiregs;
   55     uint16_t              dtsec_freq;
   56     t_Error                   err;
   57 
   58     SANITY_CHECK_RETURN_ERROR(p_Dtsec, E_INVALID_HANDLE);
   59     SANITY_CHECK_RETURN_ERROR(p_Dtsec->p_MiiMemMap, E_INVALID_HANDLE);
   60 
   61     dtsec_freq = (uint16_t)(p_Dtsec->fmMacControllerDriver.clkFreq >> 1);
   62     miiregs = p_Dtsec->p_MiiMemMap;
   63 
   64     err = (t_Error)fman_dtsec_mii_write_reg(miiregs, phyAddr, reg, data, dtsec_freq);
   65 
   66     return err;
   67 }
   68 
   69 /*****************************************************************************/
   70 t_Error DTSEC_MII_ReadPhyReg(t_Handle h_Dtsec,
   71                              uint8_t  phyAddr,
   72                              uint8_t  reg,
   73                              uint16_t *p_Data)
   74 {
   75     t_Dtsec               *p_Dtsec = (t_Dtsec *)h_Dtsec;
   76     struct dtsec_mii_reg  *miiregs;
   77     uint16_t               dtsec_freq;
   78     t_Error                    err;
   79 
   80     SANITY_CHECK_RETURN_ERROR(p_Dtsec, E_INVALID_HANDLE);
   81     SANITY_CHECK_RETURN_ERROR(p_Dtsec->p_MiiMemMap, E_INVALID_HANDLE);
   82 
   83     dtsec_freq = (uint16_t)(p_Dtsec->fmMacControllerDriver.clkFreq >> 1);
   84     miiregs = p_Dtsec->p_MiiMemMap;
   85 
   86     err = fman_dtsec_mii_read_reg(miiregs, phyAddr, reg, p_Data, dtsec_freq);
   87 
   88     if (*p_Data == 0xffff)
   89         RETURN_ERROR(MINOR, E_NO_DEVICE,
   90                      ("Read wrong data (0xffff): phyAddr 0x%x, reg 0x%x",
   91                       phyAddr, reg));
   92     if (err)
   93         RETURN_ERROR(MINOR, (t_Error)err, NO_MSG);
   94 
   95     return E_OK;
   96 }
   97

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FreeBSD/Linux Kernel Cross Reference sys/contrib/ncsw/Peripherals/FM/MAC/dtsec_mii_acc.c

FreeBSD/Linux Kernel Cross Reference
sys/contrib/ncsw/Peripherals/FM/MAC/dtsec_mii_acc.c