target/linux/mediatek/files-5.10/drivers/net/phy/rtk/rtl8367c/eee.c

   1 /*
   2  * Copyright (C) 2013 Realtek Semiconductor Corp.
   3  * All Rights Reserved.
   4  *
   5  * Unless you and Realtek execute a separate written software license
   6  * agreement governing use of this software, this software is licensed
   7  * to you under the terms of the GNU General Public License version 2,
   8  * available at https://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
   9  *
  10  * $Revision: 48156 $
  11  * $Date: 2014-05-29 16:39:06 +0800 (週四, 29 五月 2014) $
  12  *
  13  * Purpose : RTK switch high-level API for RTL8367/RTL8367C
  14  * Feature : Here is a list of all functions and variables in EEE module.
  15  *
  16  */
  17
  18 #include <rtk_switch.h>
  19 #include <rtk_error.h>
  20 #include <eee.h>
  21 #include <string.h>
  22
  23 #include <rtl8367c_asicdrv.h>
  24 #include <rtl8367c_asicdrv_eee.h>
  25 #include <rtl8367c_asicdrv_phy.h>
  26
  27 /* Function Name:
  28  *      rtk_eee_init
  29  * Description:
  30  *      EEE function initialization.
  31  * Input:
  32  *      None
  33  * Output:
  34  *      None
  35  * Return:
  36  *      RT_ERR_OK              - OK
  37  *      RT_ERR_FAILED          - Failed
  38  *      RT_ERR_SMI             - SMI access error
  39  * Note:
  40  *      This API is used to initialize EEE status.
  41  */
  42 rtk_api_ret_t rtk_eee_init(void)
  43 {
  44     rtk_api_ret_t retVal;
  45
  46     /* Check initialization state */
  47     RTK_CHK_INIT_STATE();
  48
  49     if((retVal = rtl8367c_setAsicRegBit(0x0018, 10, 1)) != RT_ERR_OK)
  50         return retVal;
  51
  52     if((retVal = rtl8367c_setAsicRegBit(0x0018, 11, 1)) != RT_ERR_OK)
  53         return retVal;
  54
  55     return RT_ERR_OK;
  56 }
  57
  58 /* Function Name:
  59  *      rtk_eee_portEnable_set
  60  * Description:
  61  *      Set enable status of EEE function.
  62  * Input:
  63  *      port - port id.
  64  *      enable - enable EEE status.
  65  * Output:
  66  *      None
  67  * Return:
  68  *      RT_ERR_OK              - OK
  69  *      RT_ERR_FAILED          - Failed
  70  *      RT_ERR_SMI             - SMI access error
  71  *      RT_ERR_PORT_ID - Invalid port number.
  72  *      RT_ERR_ENABLE - Invalid enable input.
  73  * Note:
  74  *      This API can set EEE function to the specific port.
  75  *      The configuration of the port is as following:
  76  *      - DISABLE
  77  *      - ENABLE
  78  */
  79 rtk_api_ret_t rtk_eee_portEnable_set(rtk_port_t port, rtk_enable_t enable)
  80 {
  81     rtk_api_ret_t   retVal;
  82     rtk_uint32      regData;
  83     rtk_uint32    phy_port;
  84
  85     /* Check initialization state */
  86     RTK_CHK_INIT_STATE();
  87
  88     /* Check port is UTP port */
  89     RTK_CHK_PORT_IS_UTP(port);
  90
  91     if (enable>=RTK_ENABLE_END)
  92         return RT_ERR_INPUT;
  93
  94     phy_port = rtk_switch_port_L2P_get(port);
  95
  96     if ((retVal = rtl8367c_setAsicEee100M(phy_port,enable))!=RT_ERR_OK)
  97         return retVal;
  98     if ((retVal = rtl8367c_setAsicEeeGiga(phy_port,enable))!=RT_ERR_OK)
  99         return retVal;
 100
 101     if ((retVal = rtl8367c_setAsicPHYReg(phy_port, RTL8367C_PHY_PAGE_ADDRESS, 0))!=RT_ERR_OK)
 102         return retVal;
 103     if ((retVal = rtl8367c_getAsicPHYReg(phy_port, 0, &regData))!=RT_ERR_OK)
 104         return retVal;
 105     regData |= 0x0200;
 106     if ((retVal = rtl8367c_setAsicPHYReg(phy_port, 0, regData))!=RT_ERR_OK)
 107         return retVal;
 108
 109     return RT_ERR_OK;
 110 }
 111
 112 /* Function Name:
 113  *      rtk_eee_portEnable_get
 114  * Description:
 115  *      Get enable status of EEE function
 116  * Input:
 117  *      port - Port id.
 118  * Output:
 119  *      pEnable - Back pressure status.
 120  * Return:
 121  *      RT_ERR_OK              - OK
 122  *      RT_ERR_FAILED          - Failed
 123  *      RT_ERR_SMI             - SMI access error
 124  *      RT_ERR_PORT_ID - Invalid port number.
 125  * Note:
 126  *      This API can get EEE function to the specific port.
 127  *      The configuration of the port is as following:
 128  *      - DISABLE
 129  *      - ENABLE
 130  */
 131
 132 rtk_api_ret_t rtk_eee_portEnable_get(rtk_port_t port, rtk_enable_t *pEnable)
 133 {
 134     rtk_api_ret_t retVal;
 135     rtk_uint32 regData1, regData2;
 136     rtk_uint32    phy_port;
 137
 138     /* Check initialization state */
 139     RTK_CHK_INIT_STATE();
 140
 141     /* Check port is UTP port */
 142     RTK_CHK_PORT_IS_UTP(port);
 143
 144     if(NULL == pEnable)
 145         return RT_ERR_NULL_POINTER;
 146
 147     phy_port = rtk_switch_port_L2P_get(port);
 148
 149     if ((retVal = rtl8367c_getAsicEee100M(phy_port,&regData1))!=RT_ERR_OK)
 150         return retVal;
 151     if ((retVal = rtl8367c_getAsicEeeGiga(phy_port,&regData2))!=RT_ERR_OK)
 152         return retVal;
 153
 154     if (regData1==1&&regData2==1)
 155         *pEnable = ENABLED;
 156     else
 157         *pEnable = DISABLED;
 158
 159     return RT_ERR_OK;
 160 }
 161
 162