Diff: targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/TARGET_KPSDK_CODE/common/phyksz8081/fsl_phy_driver.c

Revision:

168:cf9372ac0a74

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/TARGET_KPSDK_CODE/common/phyksz8081/fsl_phy_driver.c	Thu Apr 24 10:45:06 2014 +0100
@@ -0,0 +1,264 @@
+/*
+* Copyright (c) 2013 - 2014, Freescale Semiconductor, Inc.
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without modification,
+* are permitted provided that the following conditions are met:
+*
+* o Redistributions of source code must retain the above copyright notice, this list
+*   of conditions and the following disclaimer.
+*
+* o Redistributions in binary form must reproduce the above copyright notice, this
+*   list of conditions and the following disclaimer in the documentation and/or
+*   other materials provided with the distribution.
+*
+* o Neither the name of Freescale Semiconductor, Inc. nor the names of its
+*   contributors may be used to endorse or promote products derived from this
+*   software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include "fsl_phy_driver.h"
+
+/*******************************************************************************
+ * Variables
+ ******************************************************************************/
+
+/*! @brief Define Phy API structure for MAC application*/
+const enet_phy_api_t g_enetPhyApi = 
+{
+    phy_auto_discover,
+    phy_init,
+    phy_get_link_speed,
+    phy_get_link_status,
+    phy_get_link_duplex,
+};
+/*******************************************************************************
+ * Code
+ ******************************************************************************/
+/*FUNCTION****************************************************************
+ *
+ * Function Name: phy_init
+ * Return Value: The execution status.
+ * Description: Initialize Phy.
+ * This interface provides initialize functions for Phy, This is called by enet  
+ * initialize function. Phy is usually deault auto-negotiation. so there is no 
+ * need to do the intialize about this. we just need to check the loop mode.
+ *END*********************************************************************/
+uint32_t phy_init(enet_dev_if_t * enetIfPtr)
+{
+    uint32_t data;
+    uint32_t counter;
+    uint32_t result;
+   
+    /* Check input parameters*/
+    if (!enetIfPtr)
+    {
+        return kStatus_PHY_InvaildInput;
+    }
+
+    /* Reset Phy*/
+    if ((result = (enetIfPtr->macApiPtr->enet_mii_read(enetIfPtr->deviceNumber, 
+            enetIfPtr->phyCfgPtr->phyAddr,kEnetPhySR,&data))) == kStatus_PHY_Success)
+    {
+        if ((data & kEnetPhyAutoNegAble) != 0)
+        {
+            /* Set Autonegotiation*/
+            enetIfPtr->macApiPtr->enet_mii_write(enetIfPtr->deviceNumber, 
+                enetIfPtr->phyCfgPtr->phyAddr, kEnetPhyCR, kEnetPhyAutoNeg);
+            for (counter = 0; counter < kPhyTimeout; counter++)
+            {
+                if (enetIfPtr->macApiPtr->enet_mii_read(enetIfPtr->deviceNumber, 
+                       enetIfPtr->phyCfgPtr->phyAddr,kEnetPhySR,&data)== kStatus_PHY_Success)
+                {
+                    if ((data & kEnetPhyAutoNegComplete) != 0)
+                    {
+                        break;
+                    }
+                }		  	            
+            }
+
+            if (counter == kPhyTimeout)
+            {
+                return kStatus_PHY_TimeOut;
+            }
+        }
+    }
+
+    if (enetIfPtr->phyCfgPtr->isLoopEnabled)
+    {
+        /* First read the current status in control register*/ 
+        if (enetIfPtr->macApiPtr->enet_mii_read(enetIfPtr->deviceNumber, 
+            enetIfPtr->phyCfgPtr->phyAddr,kEnetPhyCR,&data))
+        {
+            result = enetIfPtr->macApiPtr->enet_mii_write(enetIfPtr->deviceNumber, 
+                enetIfPtr->phyCfgPtr->phyAddr,kEnetPhyCR,(data|kEnetPhyLoop));
+        }		
+    }
+
+    return result;
+}
+
+/*FUNCTION****************************************************************
+ *
+ * Function Name: phy_auto_discover
+ * Return Value: The execution status.
+ * Description: Phy address auto discover.
+ * This function provides a interface to get phy address using phy address auto 
+ * discovering, this interface is used when the phy address is unknown.
+ *END*********************************************************************/
+uint32_t phy_auto_discover(enet_dev_if_t * enetIfPtr)
+{
+    uint32_t addrIdx,data;
+    uint32_t result = kStatus_PHY_Fail;
+	
+    /* Check input parameters*/
+    if (!enetIfPtr)
+    {
+        return kStatus_PHY_InvaildInput;
+    }
+
+    for (addrIdx = 0; addrIdx < 32; addrIdx++)
+    {
+        enetIfPtr->phyCfgPtr->phyAddr = addrIdx;
+        result = enetIfPtr->macApiPtr->enet_mii_read(enetIfPtr->deviceNumber,
+            enetIfPtr->phyCfgPtr->phyAddr,kEnetPhyId1,&data);
+        if ((result == kStatus_PHY_Success) && (data != 0) && (data != 0xffff) )
+        {
+            return kStatus_PHY_Success;
+        }
+    }
+
+    return result;
+}
+
+/*FUNCTION****************************************************************
+ *
+ * Function Name: phy_get_link_speed
+ * Return Value: The execution status.
+ * Description: Get phy link speed.
+ * This function provides a interface to get link speed.
+ *END*********************************************************************/
+uint32_t phy_get_link_speed(enet_dev_if_t * enetIfPtr, enet_phy_speed_t *status)
+{
+    uint32_t result = kStatus_PHY_Success;
+    uint32_t data;
+	
+    /* Check input parameters*/
+    if ((!enetIfPtr) || (!status))
+    {
+        return kStatus_PHY_InvaildInput;
+    }
+
+    result = enetIfPtr->macApiPtr->enet_mii_read(enetIfPtr->deviceNumber, 
+        enetIfPtr->phyCfgPtr->phyAddr, kEnetPhyCt2,&data);
+    if (result == kStatus_PHY_Success)
+    {
+        data &= kEnetPhySpeedDulpexMask; 
+        if ((kEnetPhy100HalfDuplex == data) || (kEnetPhy100FullDuplex == data))
+        {
+            *status = kEnetSpeed100M;
+        }
+        else
+        {
+            *status = kEnetSpeed10M;
+        }
+    }
+
+    return result;
+}
+
+/*FUNCTION****************************************************************
+ *
+ * Function Name: phy_get_link_status
+ * Return Value: The execution status.
+ * Description: Get phy link status.
+ * This function provides a interface to get link status to see if the link 
+ * status is on or off.
+ *END*********************************************************************/
+ uint32_t phy_get_link_status(enet_dev_if_t * enetIfPtr, bool *status)
+{
+    uint32_t result = kStatus_PHY_Success;
+    uint32_t data;
+	
+    /* Check input parameters*/
+    if ((!enetIfPtr) || (!status))
+    {
+        return kStatus_PHY_InvaildInput;
+    }
+
+    result = enetIfPtr->macApiPtr->enet_mii_read(enetIfPtr->deviceNumber, 
+        enetIfPtr->phyCfgPtr->phyAddr,kEnetPhyCR,&data);
+    if ((result == kStatus_PHY_Success) && (!(data & kEnetPhyReset)))
+    {
+        data = 0;
+        result = enetIfPtr->macApiPtr->enet_mii_read(enetIfPtr->deviceNumber, 
+            enetIfPtr->phyCfgPtr->phyAddr,kEnetPhySR, &data);
+        if (result == kStatus_PHY_Success)
+        {
+            if (!(kEnetPhyLinkStatus & data))
+            {
+                *status = false;
+            }
+            else
+            {
+                *status = true;
+            }
+        }
+    }
+
+    return result;     
+}
+
+/*FUNCTION****************************************************************
+ *
+ * Function Name: phy_get_link_duplex
+ * Return Value: The execution status.
+ * Description: Get phy link duplex.
+ * This function provides a interface to get link duplex to see if the link 
+ * duplex is full or half.
+ *END*********************************************************************/
+uint32_t phy_get_link_duplex(enet_dev_if_t * enetIfPtr, enet_phy_duplex_t *status)
+{
+    uint32_t result = kStatus_PHY_Success;
+    uint32_t data;
+	
+    /* Check input parameters*/
+    if ((!enetIfPtr) || (!status))
+    {
+        return kStatus_PHY_InvaildInput;
+    }
+
+    result = enetIfPtr->macApiPtr->enet_mii_read(enetIfPtr->deviceNumber, 
+        enetIfPtr->phyCfgPtr->phyAddr,kEnetPhyCt2,&data);
+    if (result == kStatus_PHY_Success)
+    {
+        data &= kEnetPhySpeedDulpexMask; 
+        if ((kEnetPhy10FullDuplex == data) || (kEnetPhy100FullDuplex == data))
+        {
+            *status = kEnetFullDuplex;
+        }
+        else
+        {
+            *status = kEnetHalfDuplex;
+        }
+    }
+
+    return result;
+}
+
+
+/*******************************************************************************
+ * EOF
+ ******************************************************************************/
+