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- /*
- *********************************************************************************************************
- *
- * 模块名称 : DM9161/9162 FOR CMSIS Driver
- * 文件名称 : PHY_DM916x.c
- * 版 本 : V1.0
- * 说 明 : DM9161/9162驱动。
- *
- * 修改记录 :
- * 版本号 日期 作者 说明
- * V1.0 2019-08-14 Eric2013 首版
- *
- * Copyright (C), 2019-2030, 安富莱电子 www.armfly.com
- *
- *********************************************************************************************************
- */
- /* Copyright (c) 2013-2018 Arm Limited. All rights reserved.
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the License); you may
- * not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an AS IS BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- * -----------------------------------------------------------------------
- *
- * $Date: 25. May 2018
- * $Revision: V6.3
- *
- * Driver: Driver_ETH_PHYn (default: Driver_ETH_PHY0)
- * Project: Ethernet Physical Layer Transceiver (PHY)
- * Driver for KSZ8081RNA (KSZ8081RNB compatible)
- * -----------------------------------------------------------------------
- * Use the following configuration settings in the middleware component
- * to connect to this driver.
- *
- * Configuration Setting Value
- * --------------------- -----
- * Connect to hardware via Driver_ETH_PHY# = n (default: 0)
- * -------------------------------------------------------------------- */
- /* History:
- * Version 6.3
- * Added reference clock select configuration option (ETH_PHY_REF_CLK_50M)
- * Version 6.2
- * Updated for ARM compiler 6
- * Version 6.1
- * Added driver flow control flags
- * Version 6.0
- * Initial release
- */
- #include "PHY_DM916x.h"
- #define ARM_ETH_PHY_DRV_VERSION ARM_DRIVER_VERSION_MAJOR_MINOR(6,2) /* driver version */
- #ifndef ETH_PHY_NUM
- #define ETH_PHY_NUM 0 /* Default driver number */
- #endif
- #ifndef ETH_PHY_ADDR
- #define ETH_PHY_ADDR 0x01 /* Default device address */
- #endif
- #ifndef ETH_PHY_REF_CLK_50M
- #define ETH_PHY_REF_CLK_50M 0 /* RMII Reference Clock (0:25MHz,1:50MHz) */
- #endif
- /* Driver Version */
- static const ARM_DRIVER_VERSION DriverVersion = {
- ARM_ETH_PHY_API_VERSION,
- ARM_ETH_PHY_DRV_VERSION
- };
- /* Ethernet PHY control structure */
- static PHY_CTRL PHY = { NULL, NULL, 0, 0, 0 };
- /**
- \\fn ARM_DRIVER_VERSION GetVersion (void)
- \\brief Get driver version.
- \\return \\ref ARM_DRIVER_VERSION
- */
- static ARM_DRIVER_VERSION GetVersion (void) {
- return DriverVersion;
- }
- /**
- \\fn int32_t Initialize (ARM_ETH_PHY_Read_t fn_read,
- ARM_ETH_PHY_Write_t fn_write)
- \\brief Initialize Ethernet PHY Device.
- \\param[in] fn_read Pointer to \\ref ARM_ETH_MAC_PHY_Read
- \\param[in] fn_write Pointer to \\ref ARM_ETH_MAC_PHY_Write
- \\return \\ref execution_status
- */
- static int32_t Initialize (ARM_ETH_PHY_Read_t fn_read, ARM_ETH_PHY_Write_t fn_write) {
- if ((fn_read == NULL) || (fn_write == NULL)) { return ARM_DRIVER_ERROR_PARAMETER; }
- if ((PHY.flags & PHY_INIT) == 0U) {
- /* Register PHY read/write functions. */
- PHY.reg_rd = fn_read;
- PHY.reg_wr = fn_write;
- PHY.bmcr = 0U;
- PHY.flags = PHY_INIT;
- }
- return ARM_DRIVER_OK;
- }
- /**
- \\fn int32_t Uninitialize (void)
- \\brief De-initialize Ethernet PHY Device.
- \\return \\ref execution_status
- */
- static int32_t Uninitialize (void) {
- PHY.reg_rd = NULL;
- PHY.reg_wr = NULL;
- PHY.bmcr = 0U;
- PHY.flags = 0U;
- return ARM_DRIVER_OK;
- }
- /**
- \\fn int32_t PowerControl (ARM_POWER_STATE state)
- \\brief Control Ethernet PHY Device Power.
- \\param[in] state Power state
- \\return \\ref execution_status
- */
- static int32_t PowerControl (ARM_POWER_STATE state) {
- uint16_t val;
- switch ((int32_t)state) {
- case ARM_POWER_OFF:
- if ((PHY.flags & PHY_INIT) == 0U) {
- /* Initialize must provide register access function pointers */
- return ARM_DRIVER_ERROR;
- }
- PHY.flags &= ~PHY_POWER;
- PHY.bmcr = BMCR_POWER_DOWN;
- return (PHY.reg_wr(ETH_PHY_ADDR, REG_BMCR, PHY.bmcr));
- case ARM_POWER_FULL:
- if ((PHY.flags & PHY_INIT) == 0U) {
- return ARM_DRIVER_ERROR;
- }
- if (PHY.flags & PHY_POWER) {
- return ARM_DRIVER_OK;
- }
- /* Check Device Identification. */
- PHY.reg_rd(ETH_PHY_ADDR, REG_PHYIDR1, &val);
- if (val != PHY_ID1) {
- /* Invalid PHY ID */
- return ARM_DRIVER_ERROR_UNSUPPORTED;
- }
- PHY.reg_rd(ETH_PHY_ADDR, REG_PHYIDR2, &val);
- if ((val & 0xFF00) != PHY_ID2) {
- /* Invalid PHY ID */
- return ARM_DRIVER_ERROR_UNSUPPORTED;
- }
- #if (ETH_PHY_REF_CLK_50M != 0)
- /* PHY clock input XI is 50MHz */
- PHY.reg_rd(ETH_PHY_ADDR, REG_PHYCR2, &val);
- /* Set RMII Reference Clock Select bit */
- val |= PHYCR2_REF_CLK_SELECT;
- PHY.reg_wr(ETH_PHY_ADDR, REG_PHYCR2, val);
- #endif
- PHY.bmcr = 0U;
- if (PHY.reg_wr(ETH_PHY_ADDR, REG_BMCR, PHY.bmcr) != ARM_DRIVER_OK) {
- return ARM_DRIVER_ERROR;
- }
- PHY.flags |= PHY_POWER;
- return ARM_DRIVER_OK;
- case ARM_POWER_LOW:
- default:
- return ARM_DRIVER_ERROR_UNSUPPORTED;
- }
- }
- /**
- \\fn int32_t SetInterface (uint32_t interface)
- \\brief Set Ethernet Media Interface.
- \\param[in] interface Media Interface type
- \\return \\ref execution_status
- */
- static int32_t SetInterface (uint32_t interface) {
- int32_t status;
- if ((PHY.flags & PHY_POWER) == 0U) { return ARM_DRIVER_ERROR; }
- /* This device only supports RMII interface */
- switch (interface) {
- case ARM_ETH_INTERFACE_RMII: status = ARM_DRIVER_OK; break;
- default:
- status = ARM_DRIVER_ERROR_UNSUPPORTED; break;
- }
- return (status);
- }
- /**
- \\fn int32_t SetMode (uint32_t mode)
- \\brief Set Ethernet PHY Device Operation mode.
- \\param[in] mode Operation Mode
- \\return \\ref execution_status
- */
- static int32_t SetMode (uint32_t mode) {
- uint16_t val;
- if ((PHY.flags & PHY_POWER) == 0U) { return ARM_DRIVER_ERROR; }
- val = PHY.bmcr & BMCR_POWER_DOWN;
- switch (mode & ARM_ETH_PHY_SPEED_Msk) {
- case ARM_ETH_PHY_SPEED_10M:
- break;
- case ARM_ETH_PHY_SPEED_100M:
- val |= BMCR_SPEED_SELECT;
- break;
- default:
- return ARM_DRIVER_ERROR_UNSUPPORTED;
- }
- switch (mode & ARM_ETH_PHY_DUPLEX_Msk) {
- case ARM_ETH_PHY_DUPLEX_HALF:
- break;
- case ARM_ETH_PHY_DUPLEX_FULL:
- val |= BMCR_DUPLEX_MODE;
- break;
- default:
- return ARM_DRIVER_ERROR_UNSUPPORTED;
- }
- if (mode & ARM_ETH_PHY_AUTO_NEGOTIATE) {
- val |= BMCR_ANEG_EN;
- }
- if (mode & ARM_ETH_PHY_LOOPBACK) {
- val |= BMCR_LOOPBACK;
- }
- if (mode & ARM_ETH_PHY_ISOLATE) {
- val |= BMCR_ISOLATE;
- }
- PHY.bmcr = val;
- return (PHY.reg_wr(ETH_PHY_ADDR, REG_BMCR, PHY.bmcr));
- }
- /**
- \\fn ARM_ETH_LINK_STATE GetLinkState (void)
- \\brief Get Ethernet PHY Device Link state.
- \\return current link status \\ref ARM_ETH_LINK_STATE
- */
- static ARM_ETH_LINK_STATE GetLinkState (void) {
- ARM_ETH_LINK_STATE state;
- uint16_t val = 0U;
- if (PHY.flags & PHY_POWER) {
- PHY.reg_rd(ETH_PHY_ADDR, REG_BMSR, &val);
- }
- state = (val & BMSR_LINK_STAT) ? ARM_ETH_LINK_UP : ARM_ETH_LINK_DOWN;
- return (state);
- }
- /**
- \\fn ARM_ETH_LINK_INFO GetLinkInfo (void)
- \\brief Get Ethernet PHY Device Link information.
- \\return current link parameters \\ref ARM_ETH_LINK_INFO
- */
- static ARM_ETH_LINK_INFO GetLinkInfo (void) {
- ARM_ETH_LINK_INFO info;
- uint16_t val = 0U;
- if (PHY.flags & PHY_POWER) {
- /* Get operation mode indication from PHY DSCSR register */
- PHY.reg_rd(ETH_PHY_ADDR, REG_DSCSR, &val);
- }
- /* Link must be up to get valid state */
- info.speed = ((val & DSCSR_100M_FD)|(val & DSCSR_100M_HD)) ? ARM_ETH_SPEED_100M : ARM_ETH_SPEED_10M;
- info.duplex = ((val & DSCSR_100M_FD)|(val & DSCSR_10M_FD)) ? ARM_ETH_DUPLEX_FULL : ARM_ETH_DUPLEX_HALF;
- return (info);
- }
- /* PHY Driver Control Block */
- extern
- ARM_DRIVER_ETH_PHY ARM_Driver_ETH_PHY_(ETH_PHY_NUM);
- ARM_DRIVER_ETH_PHY ARM_Driver_ETH_PHY_(ETH_PHY_NUM) = {
- GetVersion,
- Initialize,
- Uninitialize,
- PowerControl,
- SetInterface,
- SetMode,
- GetLinkState,
- GetLinkInfo
- };
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发表于 2019-8-14 01:27:58
楼主
发表于 2019-8-14 07:50:56
