Demo Team
Data Viz Button Code
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lwip-eth
by 
mbed official
Revision 17:eb2c8c3aa1cd, committed 2014-09-11
- Comitter:
- mbed_official
- Date:
- Thu Sep 11 17:00:30 2014 +0100
- Parent:
- 16:eb4a98a54ad0
- Child:
- 18:b15a12222890
- Commit message:
- Synchronized with git revision c372035d60ac16c22e1313348a9e3f47293dc6b8
Full URL: https://github.com/mbedmicro/mbed/commit/c372035d60ac16c22e1313348a9e3f47293dc6b8/
Add derivative support to K64F and updates for MTS_GAMBIT
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/arch/TARGET_Freescale/fsl_enet_driver.c Thu Sep 11 17:00:30 2014 +0100
@@ -0,0 +1,472 @@
+/*
+* 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.
+*/
+
+/* Modified by mbed for the lwIP port */
+
+#include "fsl_enet_driver.h"
+#include "fsl_enet_hal.h"
+#include "fsl_clock_manager.h"
+#include "fsl_interrupt_manager.h"
+#include <string.h>
+
+#include "sys_arch.h"
+
+/*******************************************************************************
+ * Variables
+ ******************************************************************************/
+/*! @brief Define ENET's IRQ list */
+
+void *enetIfHandle;
+
+/*! @brief Define MAC driver API structure and for application of stack adaptor layer*/
+const enet_mac_api_t g_enetMacApi =
+{
+ enet_mac_init,
+ NULL, // enet_mac_deinit,
+ NULL, // enet_mac_send,
+#if !ENET_RECEIVE_ALL_INTERRUPT
+ NULL, // enet_mac_receive,
+#endif
+ enet_mii_read,
+ enet_mii_write,
+ NULL, // enet_mac_add_multicast_group,
+ NULL, //enet_mac_leave_multicast_group,
+};
+/*******************************************************************************
+ * Code
+ ******************************************************************************/
+
+// NOTE: we need these functions to be non-blocking fpr the PHY task, hence the
+// osDelay() below
+
+/*FUNCTION****************************************************************
+ *
+ * Function Name: enet_mii_read
+ * Return Value: The execution status.
+ * Description: Read function.
+ * This interface read data over the (R)MII bus from the specified PHY register,
+ * This function is called by all PHY interfaces.
+ *END*********************************************************************/
+uint32_t enet_mii_read(uint32_t instance, uint32_t phyAddr, uint32_t phyReg, uint32_t *dataPtr)
+{
+ uint32_t counter;
+
+ /* Check the input parameters*/
+ if (!dataPtr)
+ {
+ return kStatus_ENET_InvalidInput;
+ }
+
+ /* Check if the mii is enabled*/
+ if (!enet_hal_is_mii_enabled(instance))
+ {
+ return kStatus_ENET_Miiuninitialized;
+ }
+
+ /* Clear the MII interrupt event*/
+ enet_hal_clear_interrupt(instance, kEnetMiiInterrupt);
+
+ /* Read command operation*/
+ enet_hal_set_mii_command(instance, phyAddr, phyReg, kEnetReadValidFrame, 0);
+
+ /* Poll for MII complete*/
+ for (counter = 0; counter < kEnetMaxTimeout; counter++)
+ {
+ if (enet_hal_get_interrupt_status(instance, kEnetMiiInterrupt))
+ {
+ break;
+ }
+ osDelay(1);
+ }
+
+ /* Check for timeout*/
+ if (counter == kEnetMaxTimeout)
+ {
+ return kStatus_ENET_TimeOut;
+ }
+
+ /* Get data from mii register*/
+ *dataPtr = enet_hal_get_mii_data(instance);
+
+ /* Clear MII interrupt event*/
+ enet_hal_clear_interrupt(instance, kEnetMiiInterrupt);
+
+ return kStatus_ENET_Success;
+}
+
+/*FUNCTION****************************************************************
+ *
+ * Function Name: enet_mii_write
+ * Return Value: The execution status.
+ * Description: Write function.
+ * This interface write data over the (R)MII bus to the specified PHY register.
+ * This function is called by all PHY interfaces.
+ *END*********************************************************************/
+uint32_t enet_mii_write(uint32_t instance, uint32_t phyAddr, uint32_t phyReg, uint32_t data)
+{
+ uint32_t counter;
+
+ /* Check if the mii is enabled*/
+ if (!enet_hal_is_mii_enabled(instance))
+ {
+ return kStatus_ENET_Miiuninitialized;
+ }
+
+ /* Clear the MII interrupt event*/
+ enet_hal_clear_interrupt(instance, kEnetMiiInterrupt);
+
+ /* Read command operation*/
+ enet_hal_set_mii_command(instance, phyAddr, phyReg, kEnetWriteValidFrame, data);
+
+ /* Poll for MII complete*/
+ for (counter = 0; counter < kEnetMaxTimeout; counter++)
+ {
+ if (enet_hal_get_interrupt_status(instance, kEnetMiiInterrupt))
+ {
+ break;
+ }
+ osDelay(1);
+ }
+
+ /* Check for timeout*/
+ if (counter == kEnetMaxTimeout)
+ {
+ return kStatus_ENET_TimeOut;
+ }
+
+ /* Clear MII intrrupt event*/
+ enet_hal_clear_interrupt(instance, kEnetMiiInterrupt);
+
+ return kStatus_ENET_Success;
+}
+/*FUNCTION****************************************************************
+ *
+ * Function Name: enet_mac_mii_init
+ * Return Value: The execution status.
+ * Description:Initialize the ENET Mac mii(mdc/mdio)interface.
+ *END*********************************************************************/
+uint32_t enet_mac_mii_init(enet_dev_if_t * enetIfPtr)
+{
+ uint32_t frequency;
+
+ /* Check the input parameters*/
+ if (enetIfPtr == NULL)
+ {
+ return kStatus_ENET_InvalidInput;
+ }
+
+ /* Configure mii speed*/
+ clock_manager_get_frequency(kSystemClock, &frequency);
+ enet_hal_config_mii(enetIfPtr->deviceNumber, (frequency/(2 * enetIfPtr->macCfgPtr->miiClock) + 1),
+ kEnetMdioHoldOneClkCycle, false);
+
+ return kStatus_ENET_Success;
+}
+
+/*FUNCTION****************************************************************
+ *
+ * Function Name: enet_mac_rxbd_init
+ * Return Value: The execution status.
+ * Description:Initialize the ENET receive buffer descriptors.
+ * Note: If you do receive on receive interrupt handler the receive
+ * data buffer number can be the same as the receive descriptor numbers.
+ * But if you are polling receive frames please make sure the receive data
+ * buffers are more than buffer descriptors to guarantee a good performance.
+ *END*********************************************************************/
+uint32_t enet_mac_rxbd_init(enet_dev_if_t * enetIfPtr, enet_rxbd_config_t *rxbdCfg)
+{
+ /* Check the input parameters*/
+ if ((!enetIfPtr) || (!rxbdCfg))
+ {
+ return kStatus_ENET_InvalidInput;
+ }
+
+ enetIfPtr->macContextPtr->bufferdescSize = enet_hal_get_bd_size();
+
+ /* Initialize the bd status*/
+ enetIfPtr->macContextPtr->isRxFull = false;
+
+ /* Initialize receive bd base address and current address*/
+ enetIfPtr->macContextPtr->rxBdBasePtr = rxbdCfg->rxBdPtrAlign;
+ enetIfPtr->macContextPtr->rxBdCurPtr = enetIfPtr->macContextPtr->rxBdBasePtr;
+ enetIfPtr->macContextPtr->rxBdDirtyPtr = enetIfPtr->macContextPtr->rxBdBasePtr;
+ enet_hal_set_rxbd_address(enetIfPtr->deviceNumber, (uint32_t)(enetIfPtr->macContextPtr->rxBdBasePtr));
+
+ return kStatus_ENET_Success;
+}
+
+/*FUNCTION****************************************************************
+ *
+ * Function Name: enet_mac_txbd_init
+ * Return Value: The execution status.
+ * Description:Initialize the ENET transmit buffer descriptors.
+ * This function prepare all of the transmit buffer descriptors.
+ *END*********************************************************************/
+uint32_t enet_mac_txbd_init(enet_dev_if_t * enetIfPtr, enet_txbd_config_t *txbdCfg)
+{
+ /* Check the input parameters*/
+ if ((!enetIfPtr) || (!txbdCfg))
+ {
+ return kStatus_ENET_InvalidInput;
+ }
+
+ /* Initialize the bd status*/
+ enetIfPtr->macContextPtr->isTxFull = false;
+
+ /* Initialize transmit bd base address and current address*/
+ enetIfPtr->macContextPtr->txBdBasePtr = txbdCfg->txBdPtrAlign;
+ enetIfPtr->macContextPtr->txBdCurPtr = enetIfPtr->macContextPtr->txBdBasePtr;
+ enetIfPtr->macContextPtr->txBdDirtyPtr = enetIfPtr->macContextPtr->txBdBasePtr;
+ enet_hal_set_txbd_address(enetIfPtr->deviceNumber, (uint32_t)(enetIfPtr->macContextPtr->txBdBasePtr));
+ return kStatus_ENET_Success;
+}
+
+/*FUNCTION****************************************************************
+ *
+ * Function Name: enet_mac_configure_fifo_accel
+ * Return Value: The execution status.
+ * Description: Configure the ENET FIFO and Accelerator.
+ *END*********************************************************************/
+uint32_t enet_mac_configure_fifo_accel(enet_dev_if_t * enetIfPtr)
+{
+ enet_config_rx_fifo_t rxFifo;
+ enet_config_tx_fifo_t txFifo;
+
+ /* Check the input parameters*/
+ if (!enetIfPtr)
+ {
+ return kStatus_ENET_InvalidInput;
+ }
+
+ /* Initialize values that will not be initialized later on */
+ rxFifo.rxEmpty = 0;
+ rxFifo.rxFull = 0;
+ txFifo.isStoreForwardEnabled = 0;
+ txFifo.txFifoWrite = 0;
+ txFifo.txEmpty = 0;
+
+ /* Configure tx/rx accelerator*/
+ if (enetIfPtr->macCfgPtr->isRxAccelEnabled)
+ {
+ enet_hal_config_rx_accelerator(enetIfPtr->deviceNumber,
+ (enet_config_rx_accelerator_t *)&(enetIfPtr->macCfgPtr->rxAcceler));
+ if ((enetIfPtr->macCfgPtr->rxAcceler.isIpcheckEnabled) || (enetIfPtr->macCfgPtr->rxAcceler.isProtocolCheckEnabled))
+ {
+ rxFifo.rxFull = 0;
+ }
+ }
+ if (enetIfPtr->macCfgPtr->isTxAccelEnabled)
+ {
+ enet_hal_config_tx_accelerator(enetIfPtr->deviceNumber,
+ (enet_config_tx_accelerator_t *)&(enetIfPtr->macCfgPtr->txAcceler));
+ if ((enetIfPtr->macCfgPtr->txAcceler.isIpCheckEnabled) || (enetIfPtr->macCfgPtr->txAcceler.isProtocolCheckEnabled))
+ {
+ txFifo.isStoreForwardEnabled = 1;
+ }
+ }
+ if (enetIfPtr->macCfgPtr->isStoreAndFwEnabled)
+ {
+ rxFifo.rxFull = 0;
+ txFifo.isStoreForwardEnabled = 1;
+ }
+
+
+ /* Set TFWR value if STRFWD is not being used */
+ if (txFifo.isStoreForwardEnabled == 1)
+ txFifo.txFifoWrite = 0;
+ else
+ /* TFWR value is a trade-off between transmit latency and risk of transmit FIFO underrun due to contention for the system bus
+ TFWR = 15 means transmission will begin once 960 bytes has been written to the Tx FIFO (for frames larger than 960 bytes)
+ See Section 45.4.18 - Transmit FIFO Watermark Register of the K64F Reference Manual for details */
+ txFifo.txFifoWrite = 15;
+
+ /* Configure tx/rx FIFO with default value*/
+ rxFifo.rxAlmostEmpty = 4;
+ rxFifo.rxAlmostFull = 4;
+ txFifo.txAlmostEmpty = 4;
+ txFifo.txAlmostFull = 8;
+ enet_hal_config_rx_fifo(enetIfPtr->deviceNumber, &rxFifo);
+ enet_hal_config_tx_fifo(enetIfPtr->deviceNumber, &txFifo);
+
+ return kStatus_ENET_Success;
+}
+
+/*FUNCTION****************************************************************
+ *
+ * Function Name: enet_mac_configure_controller
+ * Return Value: The execution status.
+ * Description: Configure the ENET controller with the basic configuration.
+ *END*********************************************************************/
+uint32_t enet_mac_configure_controller(enet_dev_if_t * enetIfPtr)
+{
+ uint32_t macCtlCfg;
+
+ /* Check the input parameters*/
+ if (enetIfPtr == NULL)
+ {
+ return kStatus_ENET_InvalidInput;
+ }
+
+ macCtlCfg = enetIfPtr->macCfgPtr->macCtlConfigure;
+ /* Configure rmii/mii interface*/
+ enet_hal_config_rmii(enetIfPtr->deviceNumber, enetIfPtr->macCfgPtr->rmiiCfgMode,
+ enetIfPtr->macCfgPtr->speed, enetIfPtr->macCfgPtr->duplex, false,
+ (macCtlCfg & kEnetRxMiiLoopback));
+ /* Configure receive buffer size*/
+ if (enetIfPtr->macCfgPtr->isVlanEnabled)
+ {
+ enetIfPtr->maxFrameSize = kEnetMaxFrameVlanSize;
+ enet_hal_set_rx_max_size(enetIfPtr->deviceNumber,
+ enetIfPtr->macContextPtr->rxBufferSizeAligned, kEnetMaxFrameVlanSize);
+ }
+ else
+ {
+ enetIfPtr->maxFrameSize = kEnetMaxFrameSize;
+ enet_hal_set_rx_max_size(enetIfPtr->deviceNumber,
+ enetIfPtr->macContextPtr->rxBufferSizeAligned, kEnetMaxFrameSize);
+ }
+
+ /* Set receive controller promiscuous */
+ enet_hal_config_promiscuous(enetIfPtr->deviceNumber, macCtlCfg & kEnetRxPromiscuousEnable);
+ /* Set receive flow control*/
+ enet_hal_enable_flowcontrol(enetIfPtr->deviceNumber, (macCtlCfg & kEnetRxFlowControlEnable));
+ /* Set received PAUSE frames are forwarded/terminated*/
+ enet_hal_enable_pauseforward(enetIfPtr->deviceNumber, (macCtlCfg & kEnetRxPauseFwdEnable));
+ /* Set receive broadcast frame reject*/
+ enet_hal_enable_broadcastreject(enetIfPtr->deviceNumber, (macCtlCfg & kEnetRxBcRejectEnable));
+ /* Set padding is removed from the received frame*/
+ enet_hal_enable_padremove(enetIfPtr->deviceNumber, (macCtlCfg & kEnetRxPadRemoveEnable));
+ /* Set the crc of the received frame is stripped from the frame*/
+ enet_hal_enable_rxcrcforward(enetIfPtr->deviceNumber, (macCtlCfg & kEnetRxCrcFwdEnable));
+ /* Set receive payload length check*/
+ enet_hal_enable_payloadcheck(enetIfPtr->deviceNumber, (macCtlCfg & kEnetPayloadlenCheckEnable));
+ /* Set control sleep mode*/
+ enet_hal_enable_sleep(enetIfPtr->deviceNumber, (macCtlCfg & kEnetSleepModeEnable));
+ return kStatus_ENET_Success;
+}
+
+/*FUNCTION****************************************************************
+ *
+ * Function Name: enet_mac_init
+ * Return Value: The execution status.
+ * Description:Initialize the ENET device with the basic configuration
+ * When ENET is used, this function need to be called by the NET initialize
+ * interface.
+ *END*********************************************************************/
+uint32_t enet_mac_init(enet_dev_if_t * enetIfPtr, enet_rxbd_config_t *rxbdCfg,
+ enet_txbd_config_t *txbdCfg)
+{
+ uint32_t timeOut = 0;
+ uint32_t devNumber, result = 0;
+
+ /* Check the input parameters*/
+ if (enetIfPtr == NULL)
+ {
+ return kStatus_ENET_InvalidInput;
+ }
+
+ /* Get device number and check the parameter*/
+ devNumber = enetIfPtr->deviceNumber;
+
+ /* Store the global ENET structure for ISR input parameters for instance 0*/
+ if (!devNumber)
+ {
+ enetIfHandle = enetIfPtr;
+ }
+
+ /* Turn on ENET module clock gate */
+ clock_manager_set_gate(kClockModuleENET, 0U, true);
+
+ /* Reset ENET mac*/
+ enet_hal_reset_ethernet(devNumber);
+ while ((!enet_hal_is_reset_completed(devNumber)) && (timeOut < kEnetMaxTimeout))
+ {
+ time_delay(1);
+ timeOut++;
+ }
+
+ /* Check out if timeout*/
+ if (timeOut == kEnetMaxTimeout)
+ {
+ return kStatus_ENET_TimeOut;
+ }
+
+ /* Disable all ENET mac interrupt and Clear all interrupt events*/
+ enet_hal_config_interrupt(devNumber, kEnetAllInterrupt, false);
+ enet_hal_clear_interrupt(devNumber, kEnetAllInterrupt);
+
+ /* Program this station's physical address*/
+ enet_hal_set_mac_address(devNumber, enetIfPtr->macCfgPtr->macAddr);
+
+ /* Clear group and individual hash register*/
+ enet_hal_set_group_hashtable(devNumber, 0, kEnetSpecialAddressInit);
+ enet_hal_set_individual_hashtable(devNumber, 0, kEnetSpecialAddressInit);
+
+ /* Configure mac controller*/
+ result = enet_mac_configure_controller(enetIfPtr);
+ if(result != kStatus_ENET_Success)
+ {
+ return result;
+ }
+ /* Clear mib zero counters*/
+ enet_hal_clear_mib(devNumber, true);
+
+ /* Initialize FIFO and accelerator*/
+ result = enet_mac_configure_fifo_accel(enetIfPtr);
+ if(result != kStatus_ENET_Success)
+ {
+ return result;
+ }
+ /* Initialize receive buffer descriptors*/
+ result = enet_mac_rxbd_init(enetIfPtr, rxbdCfg);
+ if(result != kStatus_ENET_Success)
+ {
+ return result;
+ }
+ /* Initialize transmit buffer descriptors*/
+ result = enet_mac_txbd_init(enetIfPtr, txbdCfg);
+ if(result != kStatus_ENET_Success)
+ {
+ return result;
+ }
+ /* Initialize rmii/mii interface*/
+ result = enet_mac_mii_init(enetIfPtr);
+ if (result != kStatus_ENET_Success)
+ {
+ return result;
+ }
+
+ return kStatus_ENET_Success;
+}
+
+/*******************************************************************************
+ * EOF
+ ******************************************************************************/
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/arch/TARGET_Freescale/hardware_init_MK64F12.c Thu Sep 11 17:00:30 2014 +0100
@@ -0,0 +1,92 @@
+/*
+ * 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_port_hal.h"
+#include "fsl_clock_manager.h"
+#include "fsl_device_registers.h"
+#include "fsl_sim_hal.h"
+
+/*******************************************************************************
+ * Code
+ ******************************************************************************/
+void k64f_init_eth_hardware(void)
+{
+ uint8_t count;
+
+ /* Disable the mpu*/
+ BW_MPU_CESR_VLD(0);
+
+ /* Open POTR clock gate*/
+ for (count = 0; count < HW_PORT_INSTANCE_COUNT; count++)
+ {
+ clock_manager_set_gate(kClockModulePORT, count, true);
+ }
+
+ /* Configure gpio*/
+ port_hal_mux_control(HW_PORTA, 12, kPortMuxAlt4); /*!< ENET RMII0_RXD1/MII0_RXD1*/
+ port_hal_mux_control(HW_PORTA, 13, kPortMuxAlt4); /*!< ENET RMII0_RXD0/MII0_RXD0*/
+ port_hal_mux_control(HW_PORTA, 14, kPortMuxAlt4); /*!< ENET RMII0_CRS_DV/MII0_RXDV*/
+ port_hal_mux_control(HW_PORTA, 15, kPortMuxAlt4); /*!< ENET RMII0_TXEN/MII0_TXEN*/
+ port_hal_mux_control(HW_PORTA, 16, kPortMuxAlt4); /*!< ENET RMII0_TXD0/MII0_TXD0*/
+ port_hal_mux_control(HW_PORTA, 17, kPortMuxAlt4); /*!< ENET RMII0_TXD01/MII0_TXD1*/
+ port_hal_mux_control(HW_PORTB, 0, kPortMuxAlt4); /*!< ENET RMII0_MDIO/MII0_MDIO*/
+ port_hal_configure_open_drain(HW_PORTB,0, true); /*!< ENET RMII0_MDC/MII0_MDC*/
+
+ // Added for FRDM-K64F
+ port_hal_pull_select(HW_PORTB, 0, kPortPullUp);
+ port_hal_configure_pull(HW_PORTB, 0, true);
+
+ port_hal_mux_control(HW_PORTB, 1, kPortMuxAlt4);
+ /* Configure GPIO for MII interface */
+ port_hal_mux_control(HW_PORTA, 9, kPortMuxAlt4); /*!< ENET MII0_RXD3*/
+ port_hal_mux_control(HW_PORTA, 10, kPortMuxAlt4); /*!< ENET MII0_RXD2*/
+ port_hal_mux_control(HW_PORTA, 11, kPortMuxAlt4); /*!< ENET MII0_RXCLK*/
+ port_hal_mux_control(HW_PORTA, 24, kPortMuxAlt4); /*!< ENET MII0_TXD2*/
+ port_hal_mux_control(HW_PORTA, 25, kPortMuxAlt4); /*!< ENET MII0_TXCLK*/
+ port_hal_mux_control(HW_PORTA, 26, kPortMuxAlt4); /*!< ENET MII0_TXD3*/
+ port_hal_mux_control(HW_PORTA, 27, kPortMuxAlt4); /*!< ENET MII0_CRS*/
+ port_hal_mux_control(HW_PORTA, 28, kPortMuxAlt4); /*!< ENET MII0_TXER*/
+ port_hal_mux_control(HW_PORTA, 29, kPortMuxAlt4); /*!< ENET MII0_COL*/
+#if FSL_FEATURE_ENET_SUPPORT_PTP
+ port_hal_mux_control(HW_PORTC, (16 + ENET_TIMER_CHANNEL_NUM), kPortMuxAlt4); /* ENET ENET0_1588_TMR0*/
+ port_hal_configure_drive_strength(HW_PORTC, (16 + ENET_TIMER_CHANNEL_NUM), kPortHighDriveStrength);
+#endif
+
+ /* Open ENET clock gate*/
+ clock_manager_set_gate(kClockModuleENET,0,true);
+
+ /* Select the ptp timer outclk*/
+ clock_hal_set_clock_source(kSimClockTimeSrc, 2);
+}
+
+/*******************************************************************************
+ * EOF
+ ******************************************************************************/
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/arch/TARGET_Freescale/k64f_emac.c Thu Sep 11 17:00:30 2014 +0100
@@ -0,0 +1,878 @@
+#include "lwip/opt.h"
+#include "lwip/sys.h"
+#include "lwip/def.h"
+#include "lwip/mem.h"
+#include "lwip/pbuf.h"
+#include "lwip/stats.h"
+#include "lwip/snmp.h"
+#include "lwip/tcpip.h"
+#include "netif/etharp.h"
+#include "netif/ppp_oe.h"
+
+#include "eth_arch.h"
+#include "sys_arch.h"
+
+#include "fsl_enet_driver.h"
+#include "fsl_enet_hal.h"
+#include "fsl_device_registers.h"
+#include "fsl_phy_driver.h"
+#include "fsl_interrupt_manager.h"
+#include "k64f_emac_config.h"
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "mbed_interface.h"
+
+extern IRQn_Type enet_irq_ids[HW_ENET_INSTANCE_COUNT][FSL_FEATURE_ENET_INTERRUPT_COUNT];
+extern uint8_t enetIntMap[kEnetIntNum];
+extern void *enetIfHandle;
+
+/********************************************************************************
+ * Internal data
+ ********************************************************************************/
+
+extern void k64f_init_eth_hardware(void);
+
+/* K64F EMAC driver data structure */
+struct k64f_enetdata {
+ struct netif *netif; /**< Reference back to LWIP parent netif */
+ sys_sem_t RxReadySem; /**< RX packet ready semaphore */
+ sys_sem_t TxCleanSem; /**< TX cleanup thread wakeup semaphore */
+ sys_mutex_t TXLockMutex; /**< TX critical section mutex */
+ sys_sem_t xTXDCountSem; /**< TX free buffer counting semaphore */
+ volatile u32_t rx_free_descs; /**< Count of free RX descriptors */
+ struct pbuf *rxb[ENET_RX_RING_LEN]; /**< RX pbuf pointer list, zero-copy mode */
+ uint8_t *rx_desc_start_addr; /**< RX descriptor start address */
+ uint8_t *tx_desc_start_addr; /**< TX descriptor start address */
+ uint8_t tx_consume_index, tx_produce_index; /**< TX buffers ring */
+ uint8_t rx_fill_index; /**< RX ring fill index */
+ struct pbuf *txb[ENET_TX_RING_LEN]; /**< TX pbuf pointer list, zero-copy mode */
+ void *txb_aligned[ENET_TX_RING_LEN]; /**< TX aligned buffers (if needed) */
+};
+
+static struct k64f_enetdata k64f_enetdata;
+
+static enet_dev_if_t enetDevIf[HW_ENET_INSTANCE_COUNT];
+static enet_mac_config_t g_enetMacCfg[HW_ENET_INSTANCE_COUNT] =
+{
+ {
+ ENET_ETH_MAX_FLEN , /*!< enet receive buffer size*/
+ ENET_RX_LARGE_BUFFER_NUM, /*!< enet large receive buffer number*/
+ ENET_RX_RING_LEN, /*!< enet receive bd number*/
+ ENET_TX_RING_LEN, /*!< enet transmit bd number*/
+ {0}, /*!< enet mac address*/
+ kEnetCfgRmii, /*!< enet rmii interface*/
+ kEnetCfgSpeed100M, /*!< enet rmii 100M*/
+ kEnetCfgFullDuplex, /*!< enet rmii Full- duplex*/
+ /*!< enet mac control flag recommended to use enet_mac_control_flag_t
+ we send frame with crc so receive crc forward for data length check test*/
+ kEnetRxCrcFwdEnable | kEnetRxFlowControlEnable,
+ true, /*!< enet txaccelerator enabled*/
+ true, /*!< enet rxaccelerator enabled*/
+ false, /*!< enet store and forward*/
+ {false, false, true, false, true}, /*!< enet rxaccelerator config*/
+ {false, false, true}, /*!< enet txaccelerator config*/
+ true, /*!< vlan frame support*/
+ true, /*!< phy auto discover*/
+ ENET_MII_CLOCK, /*!< enet MDC clock*/
+ },
+};
+
+static enet_phy_config_t g_enetPhyCfg[HW_ENET_INSTANCE_COUNT] =
+{
+ {0, false}
+};
+
+/** \brief Driver transmit and receive thread priorities
+ *
+ * Thread priorities for receive thread and TX cleanup thread. Alter
+ * to prioritize receive or transmit bandwidth. In a heavily loaded
+ * system or with LEIP_DEBUG enabled, the priorities might be better
+ * the same. */
+#define RX_PRIORITY (osPriorityNormal)
+#define TX_PRIORITY (osPriorityNormal)
+#define PHY_PRIORITY (osPriorityNormal)
+
+/** \brief Debug output formatter lock define
+ *
+ * When using FreeRTOS and with LWIP_DEBUG enabled, enabling this
+ * define will allow RX debug messages to not interleave with the
+ * TX messages (so they are actually readable). Not enabling this
+ * define when the system is under load will cause the output to
+ * be unreadable. There is a small tradeoff in performance for this
+ * so use it only for debug. */
+//#define LOCK_RX_THREAD
+
+/** \brief Signal used for ethernet ISR to signal packet_rx() thread.
+ */
+#define RX_SIGNAL 1
+
+// K64F-specific macros
+#define RX_PBUF_AUTO_INDEX (-1)
+
+/********************************************************************************
+ * Buffer management
+ ********************************************************************************/
+
+/** \brief Queues a pbuf into the RX descriptor list
+ *
+ * \param[in] k64f_enet Pointer to the drvier data structure
+ * \param[in] p Pointer to pbuf to queue
+ * \param[in] bidx Index to queue into
+ */
+static void k64f_rxqueue_pbuf(struct k64f_enetdata *k64f_enet, struct pbuf *p, int bidx)
+{
+ enet_bd_struct_t *start = (enet_bd_struct_t *)k64f_enet->rx_desc_start_addr;
+ int idx;
+
+ /* Get next free descriptor index */
+ if (bidx == RX_PBUF_AUTO_INDEX)
+ idx = k64f_enet->rx_fill_index;
+ else
+ idx = bidx;
+
+ /* Setup descriptor and clear statuses */
+ enet_hal_init_rxbds(start + idx, (uint8_t*)p->payload, idx == ENET_RX_RING_LEN - 1);
+
+ /* Save pbuf pointer for push to network layer later */
+ k64f_enet->rxb[idx] = p;
+
+ /* Wrap at end of descriptor list */
+ idx = (idx + 1) % ENET_RX_RING_LEN;
+
+ /* Queue descriptor(s) */
+ k64f_enet->rx_free_descs -= 1;
+
+ if (bidx == RX_PBUF_AUTO_INDEX)
+ k64f_enet->rx_fill_index = idx;
+
+ enet_hal_active_rxbd(BOARD_DEBUG_ENET_INSTANCE);
+
+ LWIP_DEBUGF(UDP_LPC_EMAC | LWIP_DBG_TRACE,
+ ("k64f_rxqueue_pbuf: pbuf packet queued: %p (free desc=%d)\n", p,
+ k64f_enet->rx_free_descs));
+}
+
+/** \brief Attempt to allocate and requeue a new pbuf for RX
+ *
+ * \param[in] netif Pointer to the netif structure
+ * \returns number of queued packets
+ */
+s32_t k64f_rx_queue(struct netif *netif, int idx)
+{
+ struct k64f_enetdata *k64f_enet = netif->state;
+ enet_dev_if_t *enetIfPtr = (enet_dev_if_t *)&enetDevIf[BOARD_DEBUG_ENET_INSTANCE];
+ struct pbuf *p;
+ int queued = 0;
+
+ /* Attempt to requeue as many packets as possible */
+ while (k64f_enet->rx_free_descs > 0) {
+ /* Allocate a pbuf from the pool. We need to allocate at the
+ maximum size as we don't know the size of the yet to be
+ received packet. */
+ p = pbuf_alloc(PBUF_RAW, enetIfPtr->macCfgPtr->rxBufferSize + RX_BUF_ALIGNMENT, PBUF_RAM);
+ if (p == NULL) {
+ LWIP_DEBUGF(UDP_LPC_EMAC | LWIP_DBG_TRACE,
+ ("k64_rx_queue: could not allocate RX pbuf (free desc=%d)\n",
+ k64f_enet->rx_free_descs));
+ return queued;
+ }
+ /* K64F note: the next line ensures that the RX buffer is properly aligned for the K64F
+ RX descriptors (16 bytes alignment). However, by doing so, we're effectively changing
+ a data structure which is internal to lwIP. This might not prove to be a good idea
+ in the long run, but a better fix would probably involve modifying lwIP itself */
+ p->payload = (void*)ENET_ALIGN((uint32_t)p->payload, RX_BUF_ALIGNMENT);
+
+ /* pbufs allocated from the RAM pool should be non-chained. */
+ LWIP_ASSERT("k64f_rx_queue: pbuf is not contiguous (chained)", pbuf_clen(p) <= 1);
+
+ /* Queue packet */
+ k64f_rxqueue_pbuf(k64f_enet, p, idx);
+ queued++;
+ }
+
+ return queued;
+}
+
+/** \brief Sets up the RX descriptor ring buffers.
+ *
+ * This function sets up the descriptor list used for receive packets.
+ *
+ * \param[in] netif Pointer to driver data structure
+ * \returns ERR_MEM if out of memory, ERR_OK otherwise
+ */
+static err_t k64f_rx_setup(struct netif *netif, enet_rxbd_config_t *rxbdCfg) {
+ struct k64f_enetdata *k64f_enet = netif->state;
+ enet_dev_if_t *enetIfPtr = (enet_dev_if_t *)&enetDevIf[BOARD_DEBUG_ENET_INSTANCE];
+ uint8_t *rxBdPtr;
+ uint32_t rxBufferSizeAligned;
+
+ // Allocate RX descriptors
+ rxBdPtr = (uint8_t *)calloc(1, enet_hal_get_bd_size() * enetIfPtr->macCfgPtr->rxBdNumber + ENET_BD_ALIGNMENT);
+ if(!rxBdPtr)
+ return ERR_MEM;
+ k64f_enet->rx_desc_start_addr = (uint8_t *)ENET_ALIGN((uint32_t)rxBdPtr, ENET_BD_ALIGNMENT);
+ k64f_enet->rx_free_descs = enetIfPtr->macCfgPtr->rxBdNumber;
+ k64f_enet->rx_fill_index = 0;
+
+ rxBufferSizeAligned = ENET_ALIGN(enetIfPtr->macCfgPtr->rxBufferSize, ENET_RX_BUFFER_ALIGNMENT);
+ enetIfPtr->macContextPtr->rxBufferSizeAligned = rxBufferSizeAligned;
+ rxbdCfg->rxBdPtrAlign = k64f_enet->rx_desc_start_addr;
+ rxbdCfg->rxBdNum = enetIfPtr->macCfgPtr->rxBdNumber;
+ rxbdCfg->rxBufferNum = enetIfPtr->macCfgPtr->rxBdNumber;
+
+ k64f_rx_queue(netif, RX_PBUF_AUTO_INDEX);
+ return ERR_OK;
+}
+
+/** \brief Sets up the TX descriptor ring buffers.
+ *
+ * This function sets up the descriptor list used for transmit packets.
+ *
+ * \param[in] netif Pointer to driver data structure
+ * \returns ERR_MEM if out of memory, ERR_OK otherwise
+ */
+static err_t k64f_tx_setup(struct netif *netif, enet_txbd_config_t *txbdCfg) {
+ struct k64f_enetdata *k64f_enet = netif->state;
+ enet_dev_if_t *enetIfPtr = (enet_dev_if_t *)&enetDevIf[BOARD_DEBUG_ENET_INSTANCE];
+ uint8_t *txBdPtr;
+
+ // Allocate TX descriptors
+ txBdPtr = (uint8_t *)calloc(1, enet_hal_get_bd_size() * enetIfPtr->macCfgPtr->txBdNumber + ENET_BD_ALIGNMENT);
+ if(!txBdPtr)
+ return ERR_MEM;
+
+ k64f_enet->tx_desc_start_addr = (uint8_t *)ENET_ALIGN((uint32_t)txBdPtr, ENET_BD_ALIGNMENT);
+ k64f_enet->tx_consume_index = k64f_enet->tx_produce_index = 0;
+
+ txbdCfg->txBdPtrAlign = k64f_enet->tx_desc_start_addr;
+ txbdCfg->txBufferNum = enetIfPtr->macCfgPtr->txBdNumber;
+ txbdCfg->txBufferSizeAlign = ENET_ALIGN(enetIfPtr->maxFrameSize, ENET_TX_BUFFER_ALIGNMENT);
+
+ // Make the TX descriptor ring circular
+ enet_hal_init_txbds(k64f_enet->tx_desc_start_addr + enet_hal_get_bd_size() * (ENET_TX_RING_LEN - 1), 1);
+
+ return ERR_OK;
+}
+
+/** \brief Free TX buffers that are complete
+ *
+ * \param[in] k64f_enet Pointer to driver data structure
+ */
+static void k64f_tx_reclaim(struct k64f_enetdata *k64f_enet)
+{
+ uint8_t i;
+ volatile enet_bd_struct_t * bdPtr = (enet_bd_struct_t *)k64f_enet->tx_desc_start_addr;
+
+ /* Get exclusive access */
+ sys_mutex_lock(&k64f_enet->TXLockMutex);
+
+ // Traverse all descriptors, looking for the ones modified by the uDMA
+ i = k64f_enet->tx_consume_index;
+ while(i != k64f_enet->tx_produce_index && !(bdPtr[i].control & kEnetTxBdReady)) {
+ if (k64f_enet->txb_aligned[i]) {
+ free(k64f_enet->txb_aligned[i]);
+ k64f_enet->txb_aligned[i] = NULL;
+ } else if (k64f_enet->txb[i]) {
+ pbuf_free(k64f_enet->txb[i]);
+ k64f_enet->txb[i] = NULL;
+ }
+ osSemaphoreRelease(k64f_enet->xTXDCountSem.id);
+ bdPtr[i].controlExtend2 &= ~TX_DESC_UPDATED_MASK;
+ i = (i + 1) % ENET_TX_RING_LEN;
+ }
+ k64f_enet->tx_consume_index = i;
+
+ /* Restore access */
+ sys_mutex_unlock(&k64f_enet->TXLockMutex);
+}
+
+/** \brief Low level init of the MAC and PHY.
+ *
+ * \param[in] netif Pointer to LWIP netif structure
+ */
+static err_t low_level_init(struct netif *netif)
+{
+ enet_dev_if_t * enetIfPtr;
+ uint32_t device = BOARD_DEBUG_ENET_INSTANCE;
+ enet_rxbd_config_t rxbdCfg;
+ enet_txbd_config_t txbdCfg;
+ enet_phy_speed_t phy_speed;
+ enet_phy_duplex_t phy_duplex;
+
+ k64f_init_eth_hardware();
+
+ /* Initialize device*/
+ enetIfPtr = (enet_dev_if_t *)&enetDevIf[device];
+ enetIfPtr->deviceNumber = device;
+ enetIfPtr->macCfgPtr = &g_enetMacCfg[device];
+ enetIfPtr->phyCfgPtr = &g_enetPhyCfg[device];
+ enetIfPtr->macApiPtr = &g_enetMacApi;
+ enetIfPtr->phyApiPtr = (void *)&g_enetPhyApi;
+ memcpy(enetIfPtr->macCfgPtr->macAddr, (char*)netif->hwaddr, kEnetMacAddrLen);
+
+ /* Allocate buffer for ENET mac context*/
+ enetIfPtr->macContextPtr = (enet_mac_context_t *)calloc(1, sizeof(enet_mac_context_t));
+ if (!enetIfPtr->macContextPtr) {
+ return ERR_BUF;
+ }
+
+ /* Initialize enet buffers*/
+ if(k64f_rx_setup(netif, &rxbdCfg) != ERR_OK) {
+ return ERR_BUF;
+ }
+ /* Initialize enet buffers*/
+ if(k64f_tx_setup(netif, &txbdCfg) != ERR_OK) {
+ return ERR_BUF;
+ }
+ /* Initialize enet module*/
+ if (enet_mac_init(enetIfPtr, &rxbdCfg, &txbdCfg) == kStatus_ENET_Success)
+ {
+ /* Initialize PHY*/
+ if (enetIfPtr->macCfgPtr->isPhyAutoDiscover) {
+ if (((enet_phy_api_t *)(enetIfPtr->phyApiPtr))->phy_auto_discover(enetIfPtr) != kStatus_PHY_Success)
+ return ERR_IF;
+ }
+ if (((enet_phy_api_t *)(enetIfPtr->phyApiPtr))->phy_init(enetIfPtr) != kStatus_PHY_Success)
+ return ERR_IF;
+
+ enetIfPtr->isInitialized = true;
+ }
+ else
+ {
+ // TODOETH: cleanup memory
+ return ERR_IF;
+ }
+
+ /* Get link information from PHY */
+ phy_get_link_speed(enetIfPtr, &phy_speed);
+ phy_get_link_duplex(enetIfPtr, &phy_duplex);
+ BW_ENET_RCR_RMII_10T(enetIfPtr->deviceNumber, phy_speed == kEnetSpeed10M ? kEnetCfgSpeed10M : kEnetCfgSpeed100M);
+ BW_ENET_TCR_FDEN(enetIfPtr->deviceNumber, phy_duplex == kEnetFullDuplex ? kEnetCfgFullDuplex : kEnetCfgHalfDuplex);
+
+ /* Enable Ethernet module*/
+ enet_hal_config_ethernet(device, true, true);
+
+ /* Active Receive buffer descriptor must be done after module enable*/
+ enet_hal_active_rxbd(enetIfPtr->deviceNumber);
+
+ return ERR_OK;
+}
+
+/********************************************************************************
+ * LWIP port
+ ********************************************************************************/
+
+/** \brief Ethernet receive interrupt handler
+ *
+ * This function handles the receive interrupt of K64F.
+ */
+void enet_mac_rx_isr(void *enetIfPtr)
+{
+ /* Clear interrupt */
+ enet_hal_clear_interrupt(((enet_dev_if_t *)enetIfPtr)->deviceNumber, kEnetRxFrameInterrupt);
+ sys_sem_signal(&k64f_enetdata.RxReadySem);
+}
+
+void enet_mac_tx_isr(void *enetIfPtr)
+{
+ /*Clear interrupt*/
+ enet_hal_clear_interrupt(((enet_dev_if_t *)enetIfPtr)->deviceNumber, kEnetTxFrameInterrupt);
+ sys_sem_signal(&k64f_enetdata.TxCleanSem);
+}
+
+/**
+ * This function is the ethernet packet send function. It calls
+ * etharp_output after checking link status.
+ *
+ * \param[in] netif the lwip network interface structure for this enetif
+ * \param[in] q Pointer to pbug to send
+ * \param[in] ipaddr IP address
+ * \return ERR_OK or error code
+ */
+err_t k64f_etharp_output(struct netif *netif, struct pbuf *q, ip_addr_t *ipaddr)
+{
+ /* Only send packet is link is up */
+ if (netif->flags & NETIF_FLAG_LINK_UP)
+ return etharp_output(netif, q, ipaddr);
+
+ return ERR_CONN;
+}
+
+/** \brief Allocates a pbuf and returns the data from the incoming packet.
+ *
+ * \param[in] netif the lwip network interface structure
+ * \param[in] idx index of packet to be read
+ * \return a pbuf filled with the received packet (including MAC header)
+ */
+static struct pbuf *k64f_low_level_input(struct netif *netif, int idx)
+{
+ struct k64f_enetdata *k64f_enet = netif->state;
+ enet_bd_struct_t * bdPtr = (enet_bd_struct_t*)k64f_enet->rx_desc_start_addr;
+ struct pbuf *p = NULL;
+ u32_t length = 0, orig_length;
+ const u16_t err_mask = kEnetRxBdTrunc | kEnetRxBdCrc | kEnetRxBdNoOctet | kEnetRxBdLengthViolation;
+
+#ifdef LOCK_RX_THREAD
+ /* Get exclusive access */
+ sys_mutex_lock(&k64f_enet->TXLockMutex);
+#endif
+
+ /* Determine if a frame has been received */
+ if ((bdPtr[idx].control & err_mask) != 0) {
+#if LINK_STATS
+ if ((bdPtr[idx].control & kEnetRxBdLengthViolation) != 0)
+ LINK_STATS_INC(link.lenerr);
+ else
+ LINK_STATS_INC(link.chkerr);
+#endif
+ LINK_STATS_INC(link.drop);
+
+ /* Re-queue the same buffer */
+ k64f_enet->rx_free_descs++;
+ p = k64f_enet->rxb[idx];
+ k64f_enet->rxb[idx] = NULL;
+ k64f_rxqueue_pbuf(k64f_enet, p, idx);
+ p = NULL;
+ } else {
+ /* A packet is waiting, get length */
+ length = enet_hal_get_bd_length(bdPtr + idx);
+
+ /* Zero-copy */
+ p = k64f_enet->rxb[idx];
+ orig_length = p->len;
+ p->len = (u16_t) length;
+
+ /* Free pbuf from descriptor */
+ k64f_enet->rxb[idx] = NULL;
+ k64f_enet->rx_free_descs++;
+
+ /* Attempt to queue new buffer */
+ if (k64f_rx_queue(netif, idx) == 0) {
+ /* Drop frame (out of memory) */
+ LINK_STATS_INC(link.drop);
+
+ /* Re-queue the same buffer */
+ p->len = orig_length;
+ k64f_rxqueue_pbuf(k64f_enet, p, idx);
+
+ LWIP_DEBUGF(UDP_LPC_EMAC | LWIP_DBG_TRACE,
+ ("k64f_low_level_input: Packet index %d dropped for OOM\n",
+ idx));
+#ifdef LOCK_RX_THREAD
+ sys_mutex_unlock(&k64f_enet->TXLockMutex);
+#endif
+
+ return NULL;
+ }
+
+ LWIP_DEBUGF(UDP_LPC_EMAC | LWIP_DBG_TRACE,
+ ("k64f_low_level_input: Packet received: %p, size %d (index=%d)\n",
+ p, length, idx));
+
+ /* Save size */
+ p->tot_len = (u16_t) length;
+ LINK_STATS_INC(link.recv);
+ }
+
+#ifdef LOCK_RX_THREAD
+ sys_mutex_unlock(&k64f_enet->TXLockMutex);
+#endif
+
+ return p;
+}
+
+/** \brief Attempt to read a packet from the EMAC interface.
+ *
+ * \param[in] netif the lwip network interface structure
+ * \param[in] idx index of packet to be read
+ */
+void k64f_enetif_input(struct netif *netif, int idx)
+{
+ struct eth_hdr *ethhdr;
+ struct pbuf *p;
+
+ /* move received packet into a new pbuf */
+ p = k64f_low_level_input(netif, idx);
+ if (p == NULL)
+ return;
+
+ /* points to packet payload, which starts with an Ethernet header */
+ ethhdr = (struct eth_hdr*)p->payload;
+
+ switch (htons(ethhdr->type)) {
+ case ETHTYPE_IP:
+ case ETHTYPE_ARP:
+#if PPPOE_SUPPORT
+ case ETHTYPE_PPPOEDISC:
+ case ETHTYPE_PPPOE:
+#endif /* PPPOE_SUPPORT */
+ /* full packet send to tcpip_thread to process */
+ if (netif->input(p, netif) != ERR_OK) {
+ LWIP_DEBUGF(NETIF_DEBUG, ("k64f_enetif_input: IP input error\n"));
+ /* Free buffer */
+ pbuf_free(p);
+ }
+ break;
+
+ default:
+ /* Return buffer */
+ pbuf_free(p);
+ break;
+ }
+}
+
+/** \brief Packet reception task
+ *
+ * This task is called when a packet is received. It will
+ * pass the packet to the LWIP core.
+ *
+ * \param[in] pvParameters pointer to the interface data
+ */
+static void packet_rx(void* pvParameters) {
+ struct k64f_enetdata *k64f_enet = pvParameters;
+ volatile enet_bd_struct_t * bdPtr = (enet_bd_struct_t*)k64f_enet->rx_desc_start_addr;
+ int idx = 0;
+
+ while (1) {
+ /* Wait for receive task to wakeup */
+ sys_arch_sem_wait(&k64f_enet->RxReadySem, 0);
+
+ if ((bdPtr[idx].control & kEnetRxBdEmpty) == 0) {
+ k64f_enetif_input(k64f_enet->netif, idx);
+ idx = (idx + 1) % ENET_RX_RING_LEN;
+ }
+ }
+}
+
+/** \brief Transmit cleanup task
+ *
+ * This task is called when a transmit interrupt occurs and
+ * reclaims the pbuf and descriptor used for the packet once
+ * the packet has been transferred.
+ *
+ * \param[in] pvParameters pointer to the interface data
+ */
+static void packet_tx(void* pvParameters) {
+ struct k64f_enetdata *k64f_enet = pvParameters;
+
+ while (1) {
+ /* Wait for transmit cleanup task to wakeup */
+ sys_arch_sem_wait(&k64f_enet->TxCleanSem, 0);
+ // TODOETH: handle TX underrun?
+ k64f_tx_reclaim(k64f_enet);
+ }
+}
+
+ /** \brief Polls if an available TX descriptor is ready. Can be used to
+ * determine if the low level transmit function will block.
+ *
+ * \param[in] netif the lwip network interface structure
+ * \return 0 if no descriptors are read, or >0
+ */
+s32_t k64f_tx_ready(struct netif *netif)
+{
+ struct k64f_enetdata *k64f_enet = netif->state;
+ s32_t fb;
+ u32_t idx, cidx;
+
+ cidx = k64f_enet->tx_consume_index;
+ idx = k64f_enet->tx_produce_index;
+
+ /* Determine number of free buffers */
+ if (idx == cidx)
+ fb = ENET_TX_RING_LEN;
+ else if (cidx > idx)
+ fb = (ENET_TX_RING_LEN - 1) -
+ ((idx + ENET_TX_RING_LEN) - cidx);
+ else
+ fb = (ENET_TX_RING_LEN - 1) - (cidx - idx);
+
+ return fb;
+}
+
+/*FUNCTION****************************************************************
+ *
+ * Function Name: enet_hal_update_txbds
+ * Description: Update ENET transmit buffer descriptors.
+ *END*********************************************************************/
+void k64f_update_txbds(struct k64f_enetdata *k64f_enet, int idx, uint8_t *buffer, uint16_t length, bool isLast)
+{
+ volatile enet_bd_struct_t * bdPtr = (enet_bd_struct_t *)(k64f_enet->tx_desc_start_addr + idx * enet_hal_get_bd_size());
+
+ bdPtr->length = HTONS(length); /* Set data length*/
+ bdPtr->buffer = (uint8_t *)HTONL((uint32_t)buffer); /* Set data buffer*/
+ if (isLast)
+ bdPtr->control |= kEnetTxBdLast;
+ else
+ bdPtr->control &= ~kEnetTxBdLast;
+ bdPtr->controlExtend1 |= kEnetTxBdTxInterrupt;
+ bdPtr->controlExtend2 &= ~TX_DESC_UPDATED_MASK; // descriptor not updated by DMA
+ bdPtr->control |= kEnetTxBdTransmitCrc | kEnetTxBdReady;
+}
+
+/** \brief Low level output of a packet. Never call this from an
+ * interrupt context, as it may block until TX descriptors
+ * become available.
+ *
+ * \param[in] netif the lwip network interface structure for this netif
+ * \param[in] p the MAC packet to send (e.g. IP packet including MAC addresses and type)
+ * \return ERR_OK if the packet could be sent or an err_t value if the packet couldn't be sent
+ */
+static err_t k64f_low_level_output(struct netif *netif, struct pbuf *p)
+{
+ struct k64f_enetdata *k64f_enet = netif->state;
+ struct pbuf *q;
+ u32_t idx;
+ s32_t dn;
+ uint8_t *psend = NULL, *dst;
+
+ /* Get free TX buffer index */
+ idx = k64f_enet->tx_produce_index;
+
+ /* Check the pbuf chain for payloads that are not 8-byte aligned.
+ If found, a new properly aligned buffer needs to be allocated
+ and the data copied there */
+ for (q = p; q != NULL; q = q->next)
+ if (((u32_t)q->payload & (TX_BUF_ALIGNMENT - 1)) != 0)
+ break;
+ if (q != NULL) {
+ // Allocate properly aligned buffer
+ psend = (uint8_t*)malloc(p->tot_len);
+ if (NULL == psend)
+ return ERR_MEM;
+ LWIP_ASSERT("k64f_low_level_output: buffer not properly aligned", ((u32_t)psend & (TX_BUF_ALIGNMENT - 1)) == 0);
+ for (q = p, dst = psend; q != NULL; q = q->next) {
+ MEMCPY(dst, q->payload, q->len);
+ dst += q->len;
+ }
+ k64f_enet->txb_aligned[idx] = psend;
+ dn = 1;
+ } else {
+ k64f_enet->txb_aligned[idx] = NULL;
+ dn = (s32_t) pbuf_clen(p);
+ pbuf_ref(p);
+ }
+
+ /* Wait until enough descriptors are available for the transfer. */
+ /* THIS WILL BLOCK UNTIL THERE ARE ENOUGH DESCRIPTORS AVAILABLE */
+ while (dn > k64f_tx_ready(netif))
+ osSemaphoreWait(k64f_enet->xTXDCountSem.id, osWaitForever);
+
+ /* Get exclusive access */
+ sys_mutex_lock(&k64f_enet->TXLockMutex);
+
+ /* Setup transfers */
+ q = p;
+ while (dn > 0) {
+ dn--;
+ if (psend != NULL) {
+ k64f_update_txbds(k64f_enet, idx, psend, p->tot_len, 1);
+ k64f_enet->txb[idx] = NULL;
+
+ LWIP_DEBUGF(UDP_LPC_EMAC | LWIP_DBG_TRACE,
+ ("k64f_low_level_output: aligned packet(%p) sent"
+ " size = %d (index=%d)\n", psend, p->tot_len, idx));
+ } else {
+ LWIP_ASSERT("k64f_low_level_output: buffer not properly aligned", ((u32_t)q->payload & 0x07) == 0);
+
+ /* Only save pointer to free on last descriptor */
+ if (dn == 0) {
+ /* Save size of packet and signal it's ready */
+ k64f_update_txbds(k64f_enet, idx, q->payload, q->len, 1);
+ k64f_enet->txb[idx] = p;
+ }
+ else {
+ /* Save size of packet, descriptor is not last */
+ k64f_update_txbds(k64f_enet, idx, q->payload, q->len, 0);
+ k64f_enet->txb[idx] = NULL;
+ }
+
+ LWIP_DEBUGF(UDP_LPC_EMAC | LWIP_DBG_TRACE,
+ ("k64f_low_level_output: pbuf packet(%p) sent, chain#=%d,"
+ " size = %d (index=%d)\n", q->payload, dn, q->len, idx));
+ }
+
+ q = q->next;
+
+ idx = (idx + 1) % ENET_TX_RING_LEN;
+ }
+
+ k64f_enet->tx_produce_index = idx;
+ enet_hal_active_txbd(BOARD_DEBUG_ENET_INSTANCE);
+ LINK_STATS_INC(link.xmit);
+
+ /* Restore access */
+ sys_mutex_unlock(&k64f_enet->TXLockMutex);
+
+ return ERR_OK;
+}
+
+/*******************************************************************************
+ * PHY task: monitor link
+*******************************************************************************/
+
+#define PHY_TASK_PERIOD_MS 200
+#define STATE_UNKNOWN (-1)
+
+typedef struct {
+ int connected;
+ enet_phy_speed_t speed;
+ enet_phy_duplex_t duplex;
+} PHY_STATE;
+
+static void k64f_phy_task(void *data) {
+ struct netif *netif = (struct netif*)data;
+ bool connection_status;
+ enet_dev_if_t * enetIfPtr = (enet_dev_if_t*)&enetDevIf[BOARD_DEBUG_ENET_INSTANCE];
+ PHY_STATE crt_state = {STATE_UNKNOWN, (enet_phy_speed_t)STATE_UNKNOWN, (enet_phy_duplex_t)STATE_UNKNOWN};
+ PHY_STATE prev_state;
+
+ prev_state = crt_state;
+ while (true) {
+ // Get current status
+ phy_get_link_status(enetIfPtr, &connection_status);
+ crt_state.connected = connection_status ? 1 : 0;
+ phy_get_link_speed(enetIfPtr, &crt_state.speed);
+ phy_get_link_duplex(enetIfPtr, &crt_state.duplex);
+
+ // Compare with previous state
+ if (crt_state.connected != prev_state.connected) {
+ if (crt_state.connected)
+ tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_up, (void*) netif, 1);
+ else
+ tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_down, (void*) netif, 1);
+ }
+
+ if (crt_state.speed != prev_state.speed)
+ BW_ENET_RCR_RMII_10T(enetIfPtr->deviceNumber, crt_state.speed == kEnetSpeed10M ? kEnetCfgSpeed10M : kEnetCfgSpeed100M);
+
+ // TODO: duplex change requires disable/enable of Ethernet interface, to be implemented
+
+ prev_state = crt_state;
+ osDelay(PHY_TASK_PERIOD_MS);
+ }
+}
+
+/**
+ * Should be called at the beginning of the program to set up the
+ * network interface.
+ *
+ * This function should be passed as a parameter to netif_add().
+ *
+ * @param[in] netif the lwip network interface structure for this netif
+ * @return ERR_OK if the loopif is initialized
+ * ERR_MEM if private data couldn't be allocated
+ * any other err_t on error
+ */
+err_t eth_arch_enetif_init(struct netif *netif)
+{
+ err_t err;
+
+ LWIP_ASSERT("netif != NULL", (netif != NULL));
+
+ k64f_enetdata.netif = netif;
+
+ /* set MAC hardware address */
+#if (MBED_MAC_ADDRESS_SUM != MBED_MAC_ADDR_INTERFACE)
+ netif->hwaddr[0] = MBED_MAC_ADDR_0;
+ netif->hwaddr[1] = MBED_MAC_ADDR_1;
+ netif->hwaddr[2] = MBED_MAC_ADDR_2;
+ netif->hwaddr[3] = MBED_MAC_ADDR_3;
+ netif->hwaddr[4] = MBED_MAC_ADDR_4;
+ netif->hwaddr[5] = MBED_MAC_ADDR_5;
+#else
+ mbed_mac_address((char *)netif->hwaddr);
+#endif
+ netif->hwaddr_len = ETHARP_HWADDR_LEN;
+
+ /* maximum transfer unit */
+ netif->mtu = 1500;
+
+ /* device capabilities */
+ // TODOETH: check if the flags are correct below
+ netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET | NETIF_FLAG_IGMP;
+
+ /* Initialize the hardware */
+ netif->state = &k64f_enetdata;
+ err = low_level_init(netif);
+ if (err != ERR_OK)
+ return err;
+
+#if LWIP_NETIF_HOSTNAME
+ /* Initialize interface hostname */
+ netif->hostname = "lwipk64f";
+#endif /* LWIP_NETIF_HOSTNAME */
+
+ netif->name[0] = 'e';
+ netif->name[1] = 'n';
+
+ netif->output = k64f_etharp_output;
+ netif->linkoutput = k64f_low_level_output;
+
+ /* CMSIS-RTOS, start tasks */
+#ifdef CMSIS_OS_RTX
+ memset(k64f_enetdata.xTXDCountSem.data, 0, sizeof(k64f_enetdata.xTXDCountSem.data));
+ k64f_enetdata.xTXDCountSem.def.semaphore = k64f_enetdata.xTXDCountSem.data;
+#endif
+ k64f_enetdata.xTXDCountSem.id = osSemaphoreCreate(&k64f_enetdata.xTXDCountSem.def, ENET_TX_RING_LEN);
+
+ LWIP_ASSERT("xTXDCountSem creation error", (k64f_enetdata.xTXDCountSem.id != NULL));
+
+ err = sys_mutex_new(&k64f_enetdata.TXLockMutex);
+ LWIP_ASSERT("TXLockMutex creation error", (err == ERR_OK));
+
+ /* Packet receive task */
+ err = sys_sem_new(&k64f_enetdata.RxReadySem, 0);
+ LWIP_ASSERT("RxReadySem creation error", (err == ERR_OK));
+ sys_thread_new("receive_thread", packet_rx, netif->state, DEFAULT_THREAD_STACKSIZE, RX_PRIORITY);
+
+ /* Transmit cleanup task */
+ err = sys_sem_new(&k64f_enetdata.TxCleanSem, 0);
+ LWIP_ASSERT("TxCleanSem creation error", (err == ERR_OK));
+ sys_thread_new("txclean_thread", packet_tx, netif->state, DEFAULT_THREAD_STACKSIZE, TX_PRIORITY);
+
+ /* PHY monitoring task */
+ sys_thread_new("phy_thread", k64f_phy_task, netif, DEFAULT_THREAD_STACKSIZE, PHY_PRIORITY);
+
+ /* Allow the PHY task to detect the initial link state and set up the proper flags */
+ osDelay(10);
+
+ return ERR_OK;
+}
+
+void eth_arch_enable_interrupts(void) {
+ enet_hal_config_interrupt(BOARD_DEBUG_ENET_INSTANCE, (kEnetTxFrameInterrupt | kEnetRxFrameInterrupt), true);
+ interrupt_enable(enet_irq_ids[BOARD_DEBUG_ENET_INSTANCE][enetIntMap[kEnetRxfInt]]);
+ interrupt_enable(enet_irq_ids[BOARD_DEBUG_ENET_INSTANCE][enetIntMap[kEnetTxfInt]]);
+}
+
+void eth_arch_disable_interrupts(void) {
+ interrupt_disable(enet_irq_ids[BOARD_DEBUG_ENET_INSTANCE][enetIntMap[kEnetRxfInt]]);
+ interrupt_disable(enet_irq_ids[BOARD_DEBUG_ENET_INSTANCE][enetIntMap[kEnetTxfInt]]);
+}
+
+void ENET_Transmit_IRQHandler(void)
+{
+ enet_mac_tx_isr(enetIfHandle);
+}
+
+void ENET_Receive_IRQHandler(void)
+{
+ enet_mac_rx_isr(enetIfHandle);
+}
+
+#if FSL_FEATURE_ENET_SUPPORT_PTP
+void ENET_1588_Timer_IRQHandler(void)
+{
+ enet_mac_ts_isr(enetIfHandle);
+}
+#endif
+/**
+ * @}
+ */
+
+/* --------------------------------- End Of File ------------------------------ */
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/arch/TARGET_Freescale/k64f_emac_config.h Thu Sep 11 17:00:30 2014 +0100 @@ -0,0 +1,47 @@ +/* + * 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. + */ +#ifndef K64F_EMAC_CONFIG_H__ +#define K64F_EMAC_CONFIG_H__ + +#define ENET_RX_RING_LEN (16) +#define ENET_TX_RING_LEN (8) +#define ENET_RX_LARGE_BUFFER_NUM (0) +#define ENET_RX_BUFFER_ALIGNMENT (16) +#define ENET_TX_BUFFER_ALIGNMENT (16) +#define ENET_BD_ALIGNMENT (16) +#define ENET_MII_CLOCK (2500000L) +#define RX_BUF_ALIGNMENT (16) +#define TX_BUF_ALIGNMENT (8) +#define BOARD_DEBUG_ENET_INSTANCE (0) + +#define ENET_ETH_MAX_FLEN (1522) // recommended size for a VLAN frame + +#endif // #define K64F_EMAC_CONFIG_H__ +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/arch/TARGET_Freescale/lwipopts_conf.h Thu Sep 11 17:00:30 2014 +0100 @@ -0,0 +1,29 @@ +/* Copyright (C) 2012 mbed.org, MIT License + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of this software + * and associated documentation files (the "Software"), to deal in the Software without restriction, + * including without limitation the rights to use, copy, modify, merge, publish, distribute, + * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all copies or + * substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING + * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef LWIPOPTS_CONF_H +#define LWIPOPTS_CONF_H + +#include "k64f_emac_config.h" + +#define LWIP_TRANSPORT_ETHERNET 1 +#define ETH_PAD_SIZE 2 + +#define MEM_SIZE (ENET_RX_RING_LEN * (ENET_ETH_MAX_FLEN + RX_BUF_ALIGNMENT) + ENET_TX_RING_LEN * ENET_ETH_MAX_FLEN) + +#endif
--- a/arch/TARGET_K64F/fsl_enet_driver.c Wed Jul 30 16:15:16 2014 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,472 +0,0 @@
-/*
-* 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.
-*/
-
-/* Modified by mbed for the lwIP port */
-
-#include "fsl_enet_driver.h"
-#include "fsl_enet_hal.h"
-#include "fsl_clock_manager.h"
-#include "fsl_interrupt_manager.h"
-#include <string.h>
-
-#include "sys_arch.h"
-
-/*******************************************************************************
- * Variables
- ******************************************************************************/
-/*! @brief Define ENET's IRQ list */
-
-void *enetIfHandle;
-
-/*! @brief Define MAC driver API structure and for application of stack adaptor layer*/
-const enet_mac_api_t g_enetMacApi =
-{
- enet_mac_init,
- NULL, // enet_mac_deinit,
- NULL, // enet_mac_send,
-#if !ENET_RECEIVE_ALL_INTERRUPT
- NULL, // enet_mac_receive,
-#endif
- enet_mii_read,
- enet_mii_write,
- NULL, // enet_mac_add_multicast_group,
- NULL, //enet_mac_leave_multicast_group,
-};
-/*******************************************************************************
- * Code
- ******************************************************************************/
-
-// NOTE: we need these functions to be non-blocking fpr the PHY task, hence the
-// osDelay() below
-
-/*FUNCTION****************************************************************
- *
- * Function Name: enet_mii_read
- * Return Value: The execution status.
- * Description: Read function.
- * This interface read data over the (R)MII bus from the specified PHY register,
- * This function is called by all PHY interfaces.
- *END*********************************************************************/
-uint32_t enet_mii_read(uint32_t instance, uint32_t phyAddr, uint32_t phyReg, uint32_t *dataPtr)
-{
- uint32_t counter;
-
- /* Check the input parameters*/
- if (!dataPtr)
- {
- return kStatus_ENET_InvalidInput;
- }
-
- /* Check if the mii is enabled*/
- if (!enet_hal_is_mii_enabled(instance))
- {
- return kStatus_ENET_Miiuninitialized;
- }
-
- /* Clear the MII interrupt event*/
- enet_hal_clear_interrupt(instance, kEnetMiiInterrupt);
-
- /* Read command operation*/
- enet_hal_set_mii_command(instance, phyAddr, phyReg, kEnetReadValidFrame, 0);
-
- /* Poll for MII complete*/
- for (counter = 0; counter < kEnetMaxTimeout; counter++)
- {
- if (enet_hal_get_interrupt_status(instance, kEnetMiiInterrupt))
- {
- break;
- }
- osDelay(1);
- }
-
- /* Check for timeout*/
- if (counter == kEnetMaxTimeout)
- {
- return kStatus_ENET_TimeOut;
- }
-
- /* Get data from mii register*/
- *dataPtr = enet_hal_get_mii_data(instance);
-
- /* Clear MII interrupt event*/
- enet_hal_clear_interrupt(instance, kEnetMiiInterrupt);
-
- return kStatus_ENET_Success;
-}
-
-/*FUNCTION****************************************************************
- *
- * Function Name: enet_mii_write
- * Return Value: The execution status.
- * Description: Write function.
- * This interface write data over the (R)MII bus to the specified PHY register.
- * This function is called by all PHY interfaces.
- *END*********************************************************************/
-uint32_t enet_mii_write(uint32_t instance, uint32_t phyAddr, uint32_t phyReg, uint32_t data)
-{
- uint32_t counter;
-
- /* Check if the mii is enabled*/
- if (!enet_hal_is_mii_enabled(instance))
- {
- return kStatus_ENET_Miiuninitialized;
- }
-
- /* Clear the MII interrupt event*/
- enet_hal_clear_interrupt(instance, kEnetMiiInterrupt);
-
- /* Read command operation*/
- enet_hal_set_mii_command(instance, phyAddr, phyReg, kEnetWriteValidFrame, data);
-
- /* Poll for MII complete*/
- for (counter = 0; counter < kEnetMaxTimeout; counter++)
- {
- if (enet_hal_get_interrupt_status(instance, kEnetMiiInterrupt))
- {
- break;
- }
- osDelay(1);
- }
-
- /* Check for timeout*/
- if (counter == kEnetMaxTimeout)
- {
- return kStatus_ENET_TimeOut;
- }
-
- /* Clear MII intrrupt event*/
- enet_hal_clear_interrupt(instance, kEnetMiiInterrupt);
-
- return kStatus_ENET_Success;
-}
-/*FUNCTION****************************************************************
- *
- * Function Name: enet_mac_mii_init
- * Return Value: The execution status.
- * Description:Initialize the ENET Mac mii(mdc/mdio)interface.
- *END*********************************************************************/
-uint32_t enet_mac_mii_init(enet_dev_if_t * enetIfPtr)
-{
- uint32_t frequency;
-
- /* Check the input parameters*/
- if (enetIfPtr == NULL)
- {
- return kStatus_ENET_InvalidInput;
- }
-
- /* Configure mii speed*/
- clock_manager_get_frequency(kSystemClock, &frequency);
- enet_hal_config_mii(enetIfPtr->deviceNumber, (frequency/(2 * enetIfPtr->macCfgPtr->miiClock) + 1),
- kEnetMdioHoldOneClkCycle, false);
-
- return kStatus_ENET_Success;
-}
-
-/*FUNCTION****************************************************************
- *
- * Function Name: enet_mac_rxbd_init
- * Return Value: The execution status.
- * Description:Initialize the ENET receive buffer descriptors.
- * Note: If you do receive on receive interrupt handler the receive
- * data buffer number can be the same as the receive descriptor numbers.
- * But if you are polling receive frames please make sure the receive data
- * buffers are more than buffer descriptors to guarantee a good performance.
- *END*********************************************************************/
-uint32_t enet_mac_rxbd_init(enet_dev_if_t * enetIfPtr, enet_rxbd_config_t *rxbdCfg)
-{
- /* Check the input parameters*/
- if ((!enetIfPtr) || (!rxbdCfg))
- {
- return kStatus_ENET_InvalidInput;
- }
-
- enetIfPtr->macContextPtr->bufferdescSize = enet_hal_get_bd_size();
-
- /* Initialize the bd status*/
- enetIfPtr->macContextPtr->isRxFull = false;
-
- /* Initialize receive bd base address and current address*/
- enetIfPtr->macContextPtr->rxBdBasePtr = rxbdCfg->rxBdPtrAlign;
- enetIfPtr->macContextPtr->rxBdCurPtr = enetIfPtr->macContextPtr->rxBdBasePtr;
- enetIfPtr->macContextPtr->rxBdDirtyPtr = enetIfPtr->macContextPtr->rxBdBasePtr;
- enet_hal_set_rxbd_address(enetIfPtr->deviceNumber, (uint32_t)(enetIfPtr->macContextPtr->rxBdBasePtr));
-
- return kStatus_ENET_Success;
-}
-
-/*FUNCTION****************************************************************
- *
- * Function Name: enet_mac_txbd_init
- * Return Value: The execution status.
- * Description:Initialize the ENET transmit buffer descriptors.
- * This function prepare all of the transmit buffer descriptors.
- *END*********************************************************************/
-uint32_t enet_mac_txbd_init(enet_dev_if_t * enetIfPtr, enet_txbd_config_t *txbdCfg)
-{
- /* Check the input parameters*/
- if ((!enetIfPtr) || (!txbdCfg))
- {
- return kStatus_ENET_InvalidInput;
- }
-
- /* Initialize the bd status*/
- enetIfPtr->macContextPtr->isTxFull = false;
-
- /* Initialize transmit bd base address and current address*/
- enetIfPtr->macContextPtr->txBdBasePtr = txbdCfg->txBdPtrAlign;
- enetIfPtr->macContextPtr->txBdCurPtr = enetIfPtr->macContextPtr->txBdBasePtr;
- enetIfPtr->macContextPtr->txBdDirtyPtr = enetIfPtr->macContextPtr->txBdBasePtr;
- enet_hal_set_txbd_address(enetIfPtr->deviceNumber, (uint32_t)(enetIfPtr->macContextPtr->txBdBasePtr));
- return kStatus_ENET_Success;
-}
-
-/*FUNCTION****************************************************************
- *
- * Function Name: enet_mac_configure_fifo_accel
- * Return Value: The execution status.
- * Description: Configure the ENET FIFO and Accelerator.
- *END*********************************************************************/
-uint32_t enet_mac_configure_fifo_accel(enet_dev_if_t * enetIfPtr)
-{
- enet_config_rx_fifo_t rxFifo;
- enet_config_tx_fifo_t txFifo;
-
- /* Check the input parameters*/
- if (!enetIfPtr)
- {
- return kStatus_ENET_InvalidInput;
- }
-
- /* Initialize values that will not be initialized later on */
- rxFifo.rxEmpty = 0;
- rxFifo.rxFull = 0;
- txFifo.isStoreForwardEnabled = 0;
- txFifo.txFifoWrite = 0;
- txFifo.txEmpty = 0;
-
- /* Configure tx/rx accelerator*/
- if (enetIfPtr->macCfgPtr->isRxAccelEnabled)
- {
- enet_hal_config_rx_accelerator(enetIfPtr->deviceNumber,
- (enet_config_rx_accelerator_t *)&(enetIfPtr->macCfgPtr->rxAcceler));
- if ((enetIfPtr->macCfgPtr->rxAcceler.isIpcheckEnabled) || (enetIfPtr->macCfgPtr->rxAcceler.isProtocolCheckEnabled))
- {
- rxFifo.rxFull = 0;
- }
- }
- if (enetIfPtr->macCfgPtr->isTxAccelEnabled)
- {
- enet_hal_config_tx_accelerator(enetIfPtr->deviceNumber,
- (enet_config_tx_accelerator_t *)&(enetIfPtr->macCfgPtr->txAcceler));
- if ((enetIfPtr->macCfgPtr->txAcceler.isIpCheckEnabled) || (enetIfPtr->macCfgPtr->txAcceler.isProtocolCheckEnabled))
- {
- txFifo.isStoreForwardEnabled = 1;
- }
- }
- if (enetIfPtr->macCfgPtr->isStoreAndFwEnabled)
- {
- rxFifo.rxFull = 0;
- txFifo.isStoreForwardEnabled = 1;
- }
-
-
- /* Set TFWR value if STRFWD is not being used */
- if (txFifo.isStoreForwardEnabled == 1)
- txFifo.txFifoWrite = 0;
- else
- /* TFWR value is a trade-off between transmit latency and risk of transmit FIFO underrun due to contention for the system bus
- TFWR = 15 means transmission will begin once 960 bytes has been written to the Tx FIFO (for frames larger than 960 bytes)
- See Section 45.4.18 - Transmit FIFO Watermark Register of the K64F Reference Manual for details */
- txFifo.txFifoWrite = 15;
-
- /* Configure tx/rx FIFO with default value*/
- rxFifo.rxAlmostEmpty = 4;
- rxFifo.rxAlmostFull = 4;
- txFifo.txAlmostEmpty = 4;
- txFifo.txAlmostFull = 8;
- enet_hal_config_rx_fifo(enetIfPtr->deviceNumber, &rxFifo);
- enet_hal_config_tx_fifo(enetIfPtr->deviceNumber, &txFifo);
-
- return kStatus_ENET_Success;
-}
-
-/*FUNCTION****************************************************************
- *
- * Function Name: enet_mac_configure_controller
- * Return Value: The execution status.
- * Description: Configure the ENET controller with the basic configuration.
- *END*********************************************************************/
-uint32_t enet_mac_configure_controller(enet_dev_if_t * enetIfPtr)
-{
- uint32_t macCtlCfg;
-
- /* Check the input parameters*/
- if (enetIfPtr == NULL)
- {
- return kStatus_ENET_InvalidInput;
- }
-
- macCtlCfg = enetIfPtr->macCfgPtr->macCtlConfigure;
- /* Configure rmii/mii interface*/
- enet_hal_config_rmii(enetIfPtr->deviceNumber, enetIfPtr->macCfgPtr->rmiiCfgMode,
- enetIfPtr->macCfgPtr->speed, enetIfPtr->macCfgPtr->duplex, false,
- (macCtlCfg & kEnetRxMiiLoopback));
- /* Configure receive buffer size*/
- if (enetIfPtr->macCfgPtr->isVlanEnabled)
- {
- enetIfPtr->maxFrameSize = kEnetMaxFrameVlanSize;
- enet_hal_set_rx_max_size(enetIfPtr->deviceNumber,
- enetIfPtr->macContextPtr->rxBufferSizeAligned, kEnetMaxFrameVlanSize);
- }
- else
- {
- enetIfPtr->maxFrameSize = kEnetMaxFrameSize;
- enet_hal_set_rx_max_size(enetIfPtr->deviceNumber,
- enetIfPtr->macContextPtr->rxBufferSizeAligned, kEnetMaxFrameSize);
- }
-
- /* Set receive controller promiscuous */
- enet_hal_config_promiscuous(enetIfPtr->deviceNumber, macCtlCfg & kEnetRxPromiscuousEnable);
- /* Set receive flow control*/
- enet_hal_enable_flowcontrol(enetIfPtr->deviceNumber, (macCtlCfg & kEnetRxFlowControlEnable));
- /* Set received PAUSE frames are forwarded/terminated*/
- enet_hal_enable_pauseforward(enetIfPtr->deviceNumber, (macCtlCfg & kEnetRxPauseFwdEnable));
- /* Set receive broadcast frame reject*/
- enet_hal_enable_broadcastreject(enetIfPtr->deviceNumber, (macCtlCfg & kEnetRxBcRejectEnable));
- /* Set padding is removed from the received frame*/
- enet_hal_enable_padremove(enetIfPtr->deviceNumber, (macCtlCfg & kEnetRxPadRemoveEnable));
- /* Set the crc of the received frame is stripped from the frame*/
- enet_hal_enable_rxcrcforward(enetIfPtr->deviceNumber, (macCtlCfg & kEnetRxCrcFwdEnable));
- /* Set receive payload length check*/
- enet_hal_enable_payloadcheck(enetIfPtr->deviceNumber, (macCtlCfg & kEnetPayloadlenCheckEnable));
- /* Set control sleep mode*/
- enet_hal_enable_sleep(enetIfPtr->deviceNumber, (macCtlCfg & kEnetSleepModeEnable));
- return kStatus_ENET_Success;
-}
-
-/*FUNCTION****************************************************************
- *
- * Function Name: enet_mac_init
- * Return Value: The execution status.
- * Description:Initialize the ENET device with the basic configuration
- * When ENET is used, this function need to be called by the NET initialize
- * interface.
- *END*********************************************************************/
-uint32_t enet_mac_init(enet_dev_if_t * enetIfPtr, enet_rxbd_config_t *rxbdCfg,
- enet_txbd_config_t *txbdCfg)
-{
- uint32_t timeOut = 0;
- uint32_t devNumber, result = 0;
-
- /* Check the input parameters*/
- if (enetIfPtr == NULL)
- {
- return kStatus_ENET_InvalidInput;
- }
-
- /* Get device number and check the parameter*/
- devNumber = enetIfPtr->deviceNumber;
-
- /* Store the global ENET structure for ISR input parameters for instance 0*/
- if (!devNumber)
- {
- enetIfHandle = enetIfPtr;
- }
-
- /* Turn on ENET module clock gate */
- clock_manager_set_gate(kClockModuleENET, 0U, true);
-
- /* Reset ENET mac*/
- enet_hal_reset_ethernet(devNumber);
- while ((!enet_hal_is_reset_completed(devNumber)) && (timeOut < kEnetMaxTimeout))
- {
- time_delay(1);
- timeOut++;
- }
-
- /* Check out if timeout*/
- if (timeOut == kEnetMaxTimeout)
- {
- return kStatus_ENET_TimeOut;
- }
-
- /* Disable all ENET mac interrupt and Clear all interrupt events*/
- enet_hal_config_interrupt(devNumber, kEnetAllInterrupt, false);
- enet_hal_clear_interrupt(devNumber, kEnetAllInterrupt);
-
- /* Program this station's physical address*/
- enet_hal_set_mac_address(devNumber, enetIfPtr->macCfgPtr->macAddr);
-
- /* Clear group and individual hash register*/
- enet_hal_set_group_hashtable(devNumber, 0, kEnetSpecialAddressInit);
- enet_hal_set_individual_hashtable(devNumber, 0, kEnetSpecialAddressInit);
-
- /* Configure mac controller*/
- result = enet_mac_configure_controller(enetIfPtr);
- if(result != kStatus_ENET_Success)
- {
- return result;
- }
- /* Clear mib zero counters*/
- enet_hal_clear_mib(devNumber, true);
-
- /* Initialize FIFO and accelerator*/
- result = enet_mac_configure_fifo_accel(enetIfPtr);
- if(result != kStatus_ENET_Success)
- {
- return result;
- }
- /* Initialize receive buffer descriptors*/
- result = enet_mac_rxbd_init(enetIfPtr, rxbdCfg);
- if(result != kStatus_ENET_Success)
- {
- return result;
- }
- /* Initialize transmit buffer descriptors*/
- result = enet_mac_txbd_init(enetIfPtr, txbdCfg);
- if(result != kStatus_ENET_Success)
- {
- return result;
- }
- /* Initialize rmii/mii interface*/
- result = enet_mac_mii_init(enetIfPtr);
- if (result != kStatus_ENET_Success)
- {
- return result;
- }
-
- return kStatus_ENET_Success;
-}
-
-/*******************************************************************************
- * EOF
- ******************************************************************************/
-
--- a/arch/TARGET_K64F/hardware_init_MK64F12.c Wed Jul 30 16:15:16 2014 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,92 +0,0 @@
-/*
- * 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_port_hal.h"
-#include "fsl_clock_manager.h"
-#include "fsl_device_registers.h"
-#include "fsl_sim_hal.h"
-
-/*******************************************************************************
- * Code
- ******************************************************************************/
-void k64f_init_eth_hardware(void)
-{
- uint8_t count;
-
- /* Disable the mpu*/
- BW_MPU_CESR_VLD(0);
-
- /* Open POTR clock gate*/
- for (count = 0; count < HW_PORT_INSTANCE_COUNT; count++)
- {
- clock_manager_set_gate(kClockModulePORT, count, true);
- }
-
- /* Configure gpio*/
- port_hal_mux_control(HW_PORTA, 12, kPortMuxAlt4); /*!< ENET RMII0_RXD1/MII0_RXD1*/
- port_hal_mux_control(HW_PORTA, 13, kPortMuxAlt4); /*!< ENET RMII0_RXD0/MII0_RXD0*/
- port_hal_mux_control(HW_PORTA, 14, kPortMuxAlt4); /*!< ENET RMII0_CRS_DV/MII0_RXDV*/
- port_hal_mux_control(HW_PORTA, 15, kPortMuxAlt4); /*!< ENET RMII0_TXEN/MII0_TXEN*/
- port_hal_mux_control(HW_PORTA, 16, kPortMuxAlt4); /*!< ENET RMII0_TXD0/MII0_TXD0*/
- port_hal_mux_control(HW_PORTA, 17, kPortMuxAlt4); /*!< ENET RMII0_TXD01/MII0_TXD1*/
- port_hal_mux_control(HW_PORTB, 0, kPortMuxAlt4); /*!< ENET RMII0_MDIO/MII0_MDIO*/
- port_hal_configure_open_drain(HW_PORTB,0, true); /*!< ENET RMII0_MDC/MII0_MDC*/
-
- // Added for FRDM-K64F
- port_hal_pull_select(HW_PORTB, 0, kPortPullUp);
- port_hal_configure_pull(HW_PORTB, 0, true);
-
- port_hal_mux_control(HW_PORTB, 1, kPortMuxAlt4);
- /* Configure GPIO for MII interface */
- port_hal_mux_control(HW_PORTA, 9, kPortMuxAlt4); /*!< ENET MII0_RXD3*/
- port_hal_mux_control(HW_PORTA, 10, kPortMuxAlt4); /*!< ENET MII0_RXD2*/
- port_hal_mux_control(HW_PORTA, 11, kPortMuxAlt4); /*!< ENET MII0_RXCLK*/
- port_hal_mux_control(HW_PORTA, 24, kPortMuxAlt4); /*!< ENET MII0_TXD2*/
- port_hal_mux_control(HW_PORTA, 25, kPortMuxAlt4); /*!< ENET MII0_TXCLK*/
- port_hal_mux_control(HW_PORTA, 26, kPortMuxAlt4); /*!< ENET MII0_TXD3*/
- port_hal_mux_control(HW_PORTA, 27, kPortMuxAlt4); /*!< ENET MII0_CRS*/
- port_hal_mux_control(HW_PORTA, 28, kPortMuxAlt4); /*!< ENET MII0_TXER*/
- port_hal_mux_control(HW_PORTA, 29, kPortMuxAlt4); /*!< ENET MII0_COL*/
-#if FSL_FEATURE_ENET_SUPPORT_PTP
- port_hal_mux_control(HW_PORTC, (16 + ENET_TIMER_CHANNEL_NUM), kPortMuxAlt4); /* ENET ENET0_1588_TMR0*/
- port_hal_configure_drive_strength(HW_PORTC, (16 + ENET_TIMER_CHANNEL_NUM), kPortHighDriveStrength);
-#endif
-
- /* Open ENET clock gate*/
- clock_manager_set_gate(kClockModuleENET,0,true);
-
- /* Select the ptp timer outclk*/
- clock_hal_set_clock_source(kSimClockTimeSrc, 2);
-}
-
-/*******************************************************************************
- * EOF
- ******************************************************************************/
-
--- a/arch/TARGET_K64F/k64f_emac.c Wed Jul 30 16:15:16 2014 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,878 +0,0 @@
-#include "lwip/opt.h"
-#include "lwip/sys.h"
-#include "lwip/def.h"
-#include "lwip/mem.h"
-#include "lwip/pbuf.h"
-#include "lwip/stats.h"
-#include "lwip/snmp.h"
-#include "lwip/tcpip.h"
-#include "netif/etharp.h"
-#include "netif/ppp_oe.h"
-
-#include "eth_arch.h"
-#include "sys_arch.h"
-
-#include "fsl_enet_driver.h"
-#include "fsl_enet_hal.h"
-#include "fsl_device_registers.h"
-#include "fsl_phy_driver.h"
-#include "fsl_interrupt_manager.h"
-#include "k64f_emac_config.h"
-#include <ctype.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-
-#include "mbed_interface.h"
-
-extern IRQn_Type enet_irq_ids[HW_ENET_INSTANCE_COUNT][FSL_FEATURE_ENET_INTERRUPT_COUNT];
-extern uint8_t enetIntMap[kEnetIntNum];
-extern void *enetIfHandle;
-
-/********************************************************************************
- * Internal data
- ********************************************************************************/
-
-extern void k64f_init_eth_hardware(void);
-
-/* K64F EMAC driver data structure */
-struct k64f_enetdata {
- struct netif *netif; /**< Reference back to LWIP parent netif */
- sys_sem_t RxReadySem; /**< RX packet ready semaphore */
- sys_sem_t TxCleanSem; /**< TX cleanup thread wakeup semaphore */
- sys_mutex_t TXLockMutex; /**< TX critical section mutex */
- sys_sem_t xTXDCountSem; /**< TX free buffer counting semaphore */
- volatile u32_t rx_free_descs; /**< Count of free RX descriptors */
- struct pbuf *rxb[ENET_RX_RING_LEN]; /**< RX pbuf pointer list, zero-copy mode */
- uint8_t *rx_desc_start_addr; /**< RX descriptor start address */
- uint8_t *tx_desc_start_addr; /**< TX descriptor start address */
- uint8_t tx_consume_index, tx_produce_index; /**< TX buffers ring */
- uint8_t rx_fill_index; /**< RX ring fill index */
- struct pbuf *txb[ENET_TX_RING_LEN]; /**< TX pbuf pointer list, zero-copy mode */
- void *txb_aligned[ENET_TX_RING_LEN]; /**< TX aligned buffers (if needed) */
-};
-
-static struct k64f_enetdata k64f_enetdata;
-
-static enet_dev_if_t enetDevIf[HW_ENET_INSTANCE_COUNT];
-static enet_mac_config_t g_enetMacCfg[HW_ENET_INSTANCE_COUNT] =
-{
- {
- ENET_ETH_MAX_FLEN , /*!< enet receive buffer size*/
- ENET_RX_LARGE_BUFFER_NUM, /*!< enet large receive buffer number*/
- ENET_RX_RING_LEN, /*!< enet receive bd number*/
- ENET_TX_RING_LEN, /*!< enet transmit bd number*/
- {0}, /*!< enet mac address*/
- kEnetCfgRmii, /*!< enet rmii interface*/
- kEnetCfgSpeed100M, /*!< enet rmii 100M*/
- kEnetCfgFullDuplex, /*!< enet rmii Full- duplex*/
- /*!< enet mac control flag recommended to use enet_mac_control_flag_t
- we send frame with crc so receive crc forward for data length check test*/
- kEnetRxCrcFwdEnable | kEnetRxFlowControlEnable,
- true, /*!< enet txaccelerator enabled*/
- true, /*!< enet rxaccelerator enabled*/
- false, /*!< enet store and forward*/
- {false, false, true, false, true}, /*!< enet rxaccelerator config*/
- {false, false, true}, /*!< enet txaccelerator config*/
- true, /*!< vlan frame support*/
- true, /*!< phy auto discover*/
- ENET_MII_CLOCK, /*!< enet MDC clock*/
- },
-};
-
-static enet_phy_config_t g_enetPhyCfg[HW_ENET_INSTANCE_COUNT] =
-{
- {0, false}
-};
-
-/** \brief Driver transmit and receive thread priorities
- *
- * Thread priorities for receive thread and TX cleanup thread. Alter
- * to prioritize receive or transmit bandwidth. In a heavily loaded
- * system or with LEIP_DEBUG enabled, the priorities might be better
- * the same. */
-#define RX_PRIORITY (osPriorityNormal)
-#define TX_PRIORITY (osPriorityNormal)
-#define PHY_PRIORITY (osPriorityNormal)
-
-/** \brief Debug output formatter lock define
- *
- * When using FreeRTOS and with LWIP_DEBUG enabled, enabling this
- * define will allow RX debug messages to not interleave with the
- * TX messages (so they are actually readable). Not enabling this
- * define when the system is under load will cause the output to
- * be unreadable. There is a small tradeoff in performance for this
- * so use it only for debug. */
-//#define LOCK_RX_THREAD
-
-/** \brief Signal used for ethernet ISR to signal packet_rx() thread.
- */
-#define RX_SIGNAL 1
-
-// K64F-specific macros
-#define RX_PBUF_AUTO_INDEX (-1)
-
-/********************************************************************************
- * Buffer management
- ********************************************************************************/
-
-/** \brief Queues a pbuf into the RX descriptor list
- *
- * \param[in] k64f_enet Pointer to the drvier data structure
- * \param[in] p Pointer to pbuf to queue
- * \param[in] bidx Index to queue into
- */
-static void k64f_rxqueue_pbuf(struct k64f_enetdata *k64f_enet, struct pbuf *p, int bidx)
-{
- enet_bd_struct_t *start = (enet_bd_struct_t *)k64f_enet->rx_desc_start_addr;
- int idx;
-
- /* Get next free descriptor index */
- if (bidx == RX_PBUF_AUTO_INDEX)
- idx = k64f_enet->rx_fill_index;
- else
- idx = bidx;
-
- /* Setup descriptor and clear statuses */
- enet_hal_init_rxbds(start + idx, (uint8_t*)p->payload, idx == ENET_RX_RING_LEN - 1);
-
- /* Save pbuf pointer for push to network layer later */
- k64f_enet->rxb[idx] = p;
-
- /* Wrap at end of descriptor list */
- idx = (idx + 1) % ENET_RX_RING_LEN;
-
- /* Queue descriptor(s) */
- k64f_enet->rx_free_descs -= 1;
-
- if (bidx == RX_PBUF_AUTO_INDEX)
- k64f_enet->rx_fill_index = idx;
-
- enet_hal_active_rxbd(BOARD_DEBUG_ENET_INSTANCE);
-
- LWIP_DEBUGF(UDP_LPC_EMAC | LWIP_DBG_TRACE,
- ("k64f_rxqueue_pbuf: pbuf packet queued: %p (free desc=%d)\n", p,
- k64f_enet->rx_free_descs));
-}
-
-/** \brief Attempt to allocate and requeue a new pbuf for RX
- *
- * \param[in] netif Pointer to the netif structure
- * \returns number of queued packets
- */
-s32_t k64f_rx_queue(struct netif *netif, int idx)
-{
- struct k64f_enetdata *k64f_enet = netif->state;
- enet_dev_if_t *enetIfPtr = (enet_dev_if_t *)&enetDevIf[BOARD_DEBUG_ENET_INSTANCE];
- struct pbuf *p;
- int queued = 0;
-
- /* Attempt to requeue as many packets as possible */
- while (k64f_enet->rx_free_descs > 0) {
- /* Allocate a pbuf from the pool. We need to allocate at the
- maximum size as we don't know the size of the yet to be
- received packet. */
- p = pbuf_alloc(PBUF_RAW, enetIfPtr->macCfgPtr->rxBufferSize + RX_BUF_ALIGNMENT, PBUF_RAM);
- if (p == NULL) {
- LWIP_DEBUGF(UDP_LPC_EMAC | LWIP_DBG_TRACE,
- ("k64_rx_queue: could not allocate RX pbuf (free desc=%d)\n",
- k64f_enet->rx_free_descs));
- return queued;
- }
- /* K64F note: the next line ensures that the RX buffer is properly aligned for the K64F
- RX descriptors (16 bytes alignment). However, by doing so, we're effectively changing
- a data structure which is internal to lwIP. This might not prove to be a good idea
- in the long run, but a better fix would probably involve modifying lwIP itself */
- p->payload = (void*)ENET_ALIGN((uint32_t)p->payload, RX_BUF_ALIGNMENT);
-
- /* pbufs allocated from the RAM pool should be non-chained. */
- LWIP_ASSERT("k64f_rx_queue: pbuf is not contiguous (chained)", pbuf_clen(p) <= 1);
-
- /* Queue packet */
- k64f_rxqueue_pbuf(k64f_enet, p, idx);
- queued++;
- }
-
- return queued;
-}
-
-/** \brief Sets up the RX descriptor ring buffers.
- *
- * This function sets up the descriptor list used for receive packets.
- *
- * \param[in] netif Pointer to driver data structure
- * \returns ERR_MEM if out of memory, ERR_OK otherwise
- */
-static err_t k64f_rx_setup(struct netif *netif, enet_rxbd_config_t *rxbdCfg) {
- struct k64f_enetdata *k64f_enet = netif->state;
- enet_dev_if_t *enetIfPtr = (enet_dev_if_t *)&enetDevIf[BOARD_DEBUG_ENET_INSTANCE];
- uint8_t *rxBdPtr;
- uint32_t rxBufferSizeAligned;
-
- // Allocate RX descriptors
- rxBdPtr = (uint8_t *)calloc(1, enet_hal_get_bd_size() * enetIfPtr->macCfgPtr->rxBdNumber + ENET_BD_ALIGNMENT);
- if(!rxBdPtr)
- return ERR_MEM;
- k64f_enet->rx_desc_start_addr = (uint8_t *)ENET_ALIGN((uint32_t)rxBdPtr, ENET_BD_ALIGNMENT);
- k64f_enet->rx_free_descs = enetIfPtr->macCfgPtr->rxBdNumber;
- k64f_enet->rx_fill_index = 0;
-
- rxBufferSizeAligned = ENET_ALIGN(enetIfPtr->macCfgPtr->rxBufferSize, ENET_RX_BUFFER_ALIGNMENT);
- enetIfPtr->macContextPtr->rxBufferSizeAligned = rxBufferSizeAligned;
- rxbdCfg->rxBdPtrAlign = k64f_enet->rx_desc_start_addr;
- rxbdCfg->rxBdNum = enetIfPtr->macCfgPtr->rxBdNumber;
- rxbdCfg->rxBufferNum = enetIfPtr->macCfgPtr->rxBdNumber;
-
- k64f_rx_queue(netif, RX_PBUF_AUTO_INDEX);
- return ERR_OK;
-}
-
-/** \brief Sets up the TX descriptor ring buffers.
- *
- * This function sets up the descriptor list used for transmit packets.
- *
- * \param[in] netif Pointer to driver data structure
- * \returns ERR_MEM if out of memory, ERR_OK otherwise
- */
-static err_t k64f_tx_setup(struct netif *netif, enet_txbd_config_t *txbdCfg) {
- struct k64f_enetdata *k64f_enet = netif->state;
- enet_dev_if_t *enetIfPtr = (enet_dev_if_t *)&enetDevIf[BOARD_DEBUG_ENET_INSTANCE];
- uint8_t *txBdPtr;
-
- // Allocate TX descriptors
- txBdPtr = (uint8_t *)calloc(1, enet_hal_get_bd_size() * enetIfPtr->macCfgPtr->txBdNumber + ENET_BD_ALIGNMENT);
- if(!txBdPtr)
- return ERR_MEM;
-
- k64f_enet->tx_desc_start_addr = (uint8_t *)ENET_ALIGN((uint32_t)txBdPtr, ENET_BD_ALIGNMENT);
- k64f_enet->tx_consume_index = k64f_enet->tx_produce_index = 0;
-
- txbdCfg->txBdPtrAlign = k64f_enet->tx_desc_start_addr;
- txbdCfg->txBufferNum = enetIfPtr->macCfgPtr->txBdNumber;
- txbdCfg->txBufferSizeAlign = ENET_ALIGN(enetIfPtr->maxFrameSize, ENET_TX_BUFFER_ALIGNMENT);
-
- // Make the TX descriptor ring circular
- enet_hal_init_txbds(k64f_enet->tx_desc_start_addr + enet_hal_get_bd_size() * (ENET_TX_RING_LEN - 1), 1);
-
- return ERR_OK;
-}
-
-/** \brief Free TX buffers that are complete
- *
- * \param[in] k64f_enet Pointer to driver data structure
- */
-static void k64f_tx_reclaim(struct k64f_enetdata *k64f_enet)
-{
- uint8_t i;
- volatile enet_bd_struct_t * bdPtr = (enet_bd_struct_t *)k64f_enet->tx_desc_start_addr;
-
- /* Get exclusive access */
- sys_mutex_lock(&k64f_enet->TXLockMutex);
-
- // Traverse all descriptors, looking for the ones modified by the uDMA
- i = k64f_enet->tx_consume_index;
- while(i != k64f_enet->tx_produce_index && !(bdPtr[i].control & kEnetTxBdReady)) {
- if (k64f_enet->txb_aligned[i]) {
- free(k64f_enet->txb_aligned[i]);
- k64f_enet->txb_aligned[i] = NULL;
- } else if (k64f_enet->txb[i]) {
- pbuf_free(k64f_enet->txb[i]);
- k64f_enet->txb[i] = NULL;
- }
- osSemaphoreRelease(k64f_enet->xTXDCountSem.id);
- bdPtr[i].controlExtend2 &= ~TX_DESC_UPDATED_MASK;
- i = (i + 1) % ENET_TX_RING_LEN;
- }
- k64f_enet->tx_consume_index = i;
-
- /* Restore access */
- sys_mutex_unlock(&k64f_enet->TXLockMutex);
-}
-
-/** \brief Low level init of the MAC and PHY.
- *
- * \param[in] netif Pointer to LWIP netif structure
- */
-static err_t low_level_init(struct netif *netif)
-{
- enet_dev_if_t * enetIfPtr;
- uint32_t device = BOARD_DEBUG_ENET_INSTANCE;
- enet_rxbd_config_t rxbdCfg;
- enet_txbd_config_t txbdCfg;
- enet_phy_speed_t phy_speed;
- enet_phy_duplex_t phy_duplex;
-
- k64f_init_eth_hardware();
-
- /* Initialize device*/
- enetIfPtr = (enet_dev_if_t *)&enetDevIf[device];
- enetIfPtr->deviceNumber = device;
- enetIfPtr->macCfgPtr = &g_enetMacCfg[device];
- enetIfPtr->phyCfgPtr = &g_enetPhyCfg[device];
- enetIfPtr->macApiPtr = &g_enetMacApi;
- enetIfPtr->phyApiPtr = (void *)&g_enetPhyApi;
- memcpy(enetIfPtr->macCfgPtr->macAddr, (char*)netif->hwaddr, kEnetMacAddrLen);
-
- /* Allocate buffer for ENET mac context*/
- enetIfPtr->macContextPtr = (enet_mac_context_t *)calloc(1, sizeof(enet_mac_context_t));
- if (!enetIfPtr->macContextPtr) {
- return ERR_BUF;
- }
-
- /* Initialize enet buffers*/
- if(k64f_rx_setup(netif, &rxbdCfg) != ERR_OK) {
- return ERR_BUF;
- }
- /* Initialize enet buffers*/
- if(k64f_tx_setup(netif, &txbdCfg) != ERR_OK) {
- return ERR_BUF;
- }
- /* Initialize enet module*/
- if (enet_mac_init(enetIfPtr, &rxbdCfg, &txbdCfg) == kStatus_ENET_Success)
- {
- /* Initialize PHY*/
- if (enetIfPtr->macCfgPtr->isPhyAutoDiscover) {
- if (((enet_phy_api_t *)(enetIfPtr->phyApiPtr))->phy_auto_discover(enetIfPtr) != kStatus_PHY_Success)
- return ERR_IF;
- }
- if (((enet_phy_api_t *)(enetIfPtr->phyApiPtr))->phy_init(enetIfPtr) != kStatus_PHY_Success)
- return ERR_IF;
-
- enetIfPtr->isInitialized = true;
- }
- else
- {
- // TODOETH: cleanup memory
- return ERR_IF;
- }
-
- /* Get link information from PHY */
- phy_get_link_speed(enetIfPtr, &phy_speed);
- phy_get_link_duplex(enetIfPtr, &phy_duplex);
- BW_ENET_RCR_RMII_10T(enetIfPtr->deviceNumber, phy_speed == kEnetSpeed10M ? kEnetCfgSpeed10M : kEnetCfgSpeed100M);
- BW_ENET_TCR_FDEN(enetIfPtr->deviceNumber, phy_duplex == kEnetFullDuplex ? kEnetCfgFullDuplex : kEnetCfgHalfDuplex);
-
- /* Enable Ethernet module*/
- enet_hal_config_ethernet(device, true, true);
-
- /* Active Receive buffer descriptor must be done after module enable*/
- enet_hal_active_rxbd(enetIfPtr->deviceNumber);
-
- return ERR_OK;
-}
-
-/********************************************************************************
- * LWIP port
- ********************************************************************************/
-
-/** \brief Ethernet receive interrupt handler
- *
- * This function handles the receive interrupt of K64F.
- */
-void enet_mac_rx_isr(void *enetIfPtr)
-{
- /* Clear interrupt */
- enet_hal_clear_interrupt(((enet_dev_if_t *)enetIfPtr)->deviceNumber, kEnetRxFrameInterrupt);
- sys_sem_signal(&k64f_enetdata.RxReadySem);
-}
-
-void enet_mac_tx_isr(void *enetIfPtr)
-{
- /*Clear interrupt*/
- enet_hal_clear_interrupt(((enet_dev_if_t *)enetIfPtr)->deviceNumber, kEnetTxFrameInterrupt);
- sys_sem_signal(&k64f_enetdata.TxCleanSem);
-}
-
-/**
- * This function is the ethernet packet send function. It calls
- * etharp_output after checking link status.
- *
- * \param[in] netif the lwip network interface structure for this enetif
- * \param[in] q Pointer to pbug to send
- * \param[in] ipaddr IP address
- * \return ERR_OK or error code
- */
-err_t k64f_etharp_output(struct netif *netif, struct pbuf *q, ip_addr_t *ipaddr)
-{
- /* Only send packet is link is up */
- if (netif->flags & NETIF_FLAG_LINK_UP)
- return etharp_output(netif, q, ipaddr);
-
- return ERR_CONN;
-}
-
-/** \brief Allocates a pbuf and returns the data from the incoming packet.
- *
- * \param[in] netif the lwip network interface structure
- * \param[in] idx index of packet to be read
- * \return a pbuf filled with the received packet (including MAC header)
- */
-static struct pbuf *k64f_low_level_input(struct netif *netif, int idx)
-{
- struct k64f_enetdata *k64f_enet = netif->state;
- enet_bd_struct_t * bdPtr = (enet_bd_struct_t*)k64f_enet->rx_desc_start_addr;
- struct pbuf *p = NULL;
- u32_t length = 0, orig_length;
- const u16_t err_mask = kEnetRxBdTrunc | kEnetRxBdCrc | kEnetRxBdNoOctet | kEnetRxBdLengthViolation;
-
-#ifdef LOCK_RX_THREAD
- /* Get exclusive access */
- sys_mutex_lock(&k64f_enet->TXLockMutex);
-#endif
-
- /* Determine if a frame has been received */
- if ((bdPtr[idx].control & err_mask) != 0) {
-#if LINK_STATS
- if ((bdPtr[idx].control & kEnetRxBdLengthViolation) != 0)
- LINK_STATS_INC(link.lenerr);
- else
- LINK_STATS_INC(link.chkerr);
-#endif
- LINK_STATS_INC(link.drop);
-
- /* Re-queue the same buffer */
- k64f_enet->rx_free_descs++;
- p = k64f_enet->rxb[idx];
- k64f_enet->rxb[idx] = NULL;
- k64f_rxqueue_pbuf(k64f_enet, p, idx);
- p = NULL;
- } else {
- /* A packet is waiting, get length */
- length = enet_hal_get_bd_length(bdPtr + idx);
-
- /* Zero-copy */
- p = k64f_enet->rxb[idx];
- orig_length = p->len;
- p->len = (u16_t) length;
-
- /* Free pbuf from descriptor */
- k64f_enet->rxb[idx] = NULL;
- k64f_enet->rx_free_descs++;
-
- /* Attempt to queue new buffer */
- if (k64f_rx_queue(netif, idx) == 0) {
- /* Drop frame (out of memory) */
- LINK_STATS_INC(link.drop);
-
- /* Re-queue the same buffer */
- p->len = orig_length;
- k64f_rxqueue_pbuf(k64f_enet, p, idx);
-
- LWIP_DEBUGF(UDP_LPC_EMAC | LWIP_DBG_TRACE,
- ("k64f_low_level_input: Packet index %d dropped for OOM\n",
- idx));
-#ifdef LOCK_RX_THREAD
- sys_mutex_unlock(&k64f_enet->TXLockMutex);
-#endif
-
- return NULL;
- }
-
- LWIP_DEBUGF(UDP_LPC_EMAC | LWIP_DBG_TRACE,
- ("k64f_low_level_input: Packet received: %p, size %d (index=%d)\n",
- p, length, idx));
-
- /* Save size */
- p->tot_len = (u16_t) length;
- LINK_STATS_INC(link.recv);
- }
-
-#ifdef LOCK_RX_THREAD
- sys_mutex_unlock(&k64f_enet->TXLockMutex);
-#endif
-
- return p;
-}
-
-/** \brief Attempt to read a packet from the EMAC interface.
- *
- * \param[in] netif the lwip network interface structure
- * \param[in] idx index of packet to be read
- */
-void k64f_enetif_input(struct netif *netif, int idx)
-{
- struct eth_hdr *ethhdr;
- struct pbuf *p;
-
- /* move received packet into a new pbuf */
- p = k64f_low_level_input(netif, idx);
- if (p == NULL)
- return;
-
- /* points to packet payload, which starts with an Ethernet header */
- ethhdr = (struct eth_hdr*)p->payload;
-
- switch (htons(ethhdr->type)) {
- case ETHTYPE_IP:
- case ETHTYPE_ARP:
-#if PPPOE_SUPPORT
- case ETHTYPE_PPPOEDISC:
- case ETHTYPE_PPPOE:
-#endif /* PPPOE_SUPPORT */
- /* full packet send to tcpip_thread to process */
- if (netif->input(p, netif) != ERR_OK) {
- LWIP_DEBUGF(NETIF_DEBUG, ("k64f_enetif_input: IP input error\n"));
- /* Free buffer */
- pbuf_free(p);
- }
- break;
-
- default:
- /* Return buffer */
- pbuf_free(p);
- break;
- }
-}
-
-/** \brief Packet reception task
- *
- * This task is called when a packet is received. It will
- * pass the packet to the LWIP core.
- *
- * \param[in] pvParameters pointer to the interface data
- */
-static void packet_rx(void* pvParameters) {
- struct k64f_enetdata *k64f_enet = pvParameters;
- volatile enet_bd_struct_t * bdPtr = (enet_bd_struct_t*)k64f_enet->rx_desc_start_addr;
- int idx = 0;
-
- while (1) {
- /* Wait for receive task to wakeup */
- sys_arch_sem_wait(&k64f_enet->RxReadySem, 0);
-
- if ((bdPtr[idx].control & kEnetRxBdEmpty) == 0) {
- k64f_enetif_input(k64f_enet->netif, idx);
- idx = (idx + 1) % ENET_RX_RING_LEN;
- }
- }
-}
-
-/** \brief Transmit cleanup task
- *
- * This task is called when a transmit interrupt occurs and
- * reclaims the pbuf and descriptor used for the packet once
- * the packet has been transferred.
- *
- * \param[in] pvParameters pointer to the interface data
- */
-static void packet_tx(void* pvParameters) {
- struct k64f_enetdata *k64f_enet = pvParameters;
-
- while (1) {
- /* Wait for transmit cleanup task to wakeup */
- sys_arch_sem_wait(&k64f_enet->TxCleanSem, 0);
- // TODOETH: handle TX underrun?
- k64f_tx_reclaim(k64f_enet);
- }
-}
-
- /** \brief Polls if an available TX descriptor is ready. Can be used to
- * determine if the low level transmit function will block.
- *
- * \param[in] netif the lwip network interface structure
- * \return 0 if no descriptors are read, or >0
- */
-s32_t k64f_tx_ready(struct netif *netif)
-{
- struct k64f_enetdata *k64f_enet = netif->state;
- s32_t fb;
- u32_t idx, cidx;
-
- cidx = k64f_enet->tx_consume_index;
- idx = k64f_enet->tx_produce_index;
-
- /* Determine number of free buffers */
- if (idx == cidx)
- fb = ENET_TX_RING_LEN;
- else if (cidx > idx)
- fb = (ENET_TX_RING_LEN - 1) -
- ((idx + ENET_TX_RING_LEN) - cidx);
- else
- fb = (ENET_TX_RING_LEN - 1) - (cidx - idx);
-
- return fb;
-}
-
-/*FUNCTION****************************************************************
- *
- * Function Name: enet_hal_update_txbds
- * Description: Update ENET transmit buffer descriptors.
- *END*********************************************************************/
-void k64f_update_txbds(struct k64f_enetdata *k64f_enet, int idx, uint8_t *buffer, uint16_t length, bool isLast)
-{
- volatile enet_bd_struct_t * bdPtr = (enet_bd_struct_t *)(k64f_enet->tx_desc_start_addr + idx * enet_hal_get_bd_size());
-
- bdPtr->length = HTONS(length); /* Set data length*/
- bdPtr->buffer = (uint8_t *)HTONL((uint32_t)buffer); /* Set data buffer*/
- if (isLast)
- bdPtr->control |= kEnetTxBdLast;
- else
- bdPtr->control &= ~kEnetTxBdLast;
- bdPtr->controlExtend1 |= kEnetTxBdTxInterrupt;
- bdPtr->controlExtend2 &= ~TX_DESC_UPDATED_MASK; // descriptor not updated by DMA
- bdPtr->control |= kEnetTxBdTransmitCrc | kEnetTxBdReady;
-}
-
-/** \brief Low level output of a packet. Never call this from an
- * interrupt context, as it may block until TX descriptors
- * become available.
- *
- * \param[in] netif the lwip network interface structure for this netif
- * \param[in] p the MAC packet to send (e.g. IP packet including MAC addresses and type)
- * \return ERR_OK if the packet could be sent or an err_t value if the packet couldn't be sent
- */
-static err_t k64f_low_level_output(struct netif *netif, struct pbuf *p)
-{
- struct k64f_enetdata *k64f_enet = netif->state;
- struct pbuf *q;
- u32_t idx;
- s32_t dn;
- uint8_t *psend = NULL, *dst;
-
- /* Get free TX buffer index */
- idx = k64f_enet->tx_produce_index;
-
- /* Check the pbuf chain for payloads that are not 8-byte aligned.
- If found, a new properly aligned buffer needs to be allocated
- and the data copied there */
- for (q = p; q != NULL; q = q->next)
- if (((u32_t)q->payload & (TX_BUF_ALIGNMENT - 1)) != 0)
- break;
- if (q != NULL) {
- // Allocate properly aligned buffer
- psend = (uint8_t*)malloc(p->tot_len);
- if (NULL == psend)
- return ERR_MEM;
- LWIP_ASSERT("k64f_low_level_output: buffer not properly aligned", ((u32_t)psend & (TX_BUF_ALIGNMENT - 1)) == 0);
- for (q = p, dst = psend; q != NULL; q = q->next) {
- MEMCPY(dst, q->payload, q->len);
- dst += q->len;
- }
- k64f_enet->txb_aligned[idx] = psend;
- dn = 1;
- } else {
- k64f_enet->txb_aligned[idx] = NULL;
- dn = (s32_t) pbuf_clen(p);
- pbuf_ref(p);
- }
-
- /* Wait until enough descriptors are available for the transfer. */
- /* THIS WILL BLOCK UNTIL THERE ARE ENOUGH DESCRIPTORS AVAILABLE */
- while (dn > k64f_tx_ready(netif))
- osSemaphoreWait(k64f_enet->xTXDCountSem.id, osWaitForever);
-
- /* Get exclusive access */
- sys_mutex_lock(&k64f_enet->TXLockMutex);
-
- /* Setup transfers */
- q = p;
- while (dn > 0) {
- dn--;
- if (psend != NULL) {
- k64f_update_txbds(k64f_enet, idx, psend, p->tot_len, 1);
- k64f_enet->txb[idx] = NULL;
-
- LWIP_DEBUGF(UDP_LPC_EMAC | LWIP_DBG_TRACE,
- ("k64f_low_level_output: aligned packet(%p) sent"
- " size = %d (index=%d)\n", psend, p->tot_len, idx));
- } else {
- LWIP_ASSERT("k64f_low_level_output: buffer not properly aligned", ((u32_t)q->payload & 0x07) == 0);
-
- /* Only save pointer to free on last descriptor */
- if (dn == 0) {
- /* Save size of packet and signal it's ready */
- k64f_update_txbds(k64f_enet, idx, q->payload, q->len, 1);
- k64f_enet->txb[idx] = p;
- }
- else {
- /* Save size of packet, descriptor is not last */
- k64f_update_txbds(k64f_enet, idx, q->payload, q->len, 0);
- k64f_enet->txb[idx] = NULL;
- }
-
- LWIP_DEBUGF(UDP_LPC_EMAC | LWIP_DBG_TRACE,
- ("k64f_low_level_output: pbuf packet(%p) sent, chain#=%d,"
- " size = %d (index=%d)\n", q->payload, dn, q->len, idx));
- }
-
- q = q->next;
-
- idx = (idx + 1) % ENET_TX_RING_LEN;
- }
-
- k64f_enet->tx_produce_index = idx;
- enet_hal_active_txbd(BOARD_DEBUG_ENET_INSTANCE);
- LINK_STATS_INC(link.xmit);
-
- /* Restore access */
- sys_mutex_unlock(&k64f_enet->TXLockMutex);
-
- return ERR_OK;
-}
-
-/*******************************************************************************
- * PHY task: monitor link
-*******************************************************************************/
-
-#define PHY_TASK_PERIOD_MS 200
-#define STATE_UNKNOWN (-1)
-
-typedef struct {
- int connected;
- enet_phy_speed_t speed;
- enet_phy_duplex_t duplex;
-} PHY_STATE;
-
-static void k64f_phy_task(void *data) {
- struct netif *netif = (struct netif*)data;
- bool connection_status;
- enet_dev_if_t * enetIfPtr = (enet_dev_if_t*)&enetDevIf[BOARD_DEBUG_ENET_INSTANCE];
- PHY_STATE crt_state = {STATE_UNKNOWN, (enet_phy_speed_t)STATE_UNKNOWN, (enet_phy_duplex_t)STATE_UNKNOWN};
- PHY_STATE prev_state;
-
- prev_state = crt_state;
- while (true) {
- // Get current status
- phy_get_link_status(enetIfPtr, &connection_status);
- crt_state.connected = connection_status ? 1 : 0;
- phy_get_link_speed(enetIfPtr, &crt_state.speed);
- phy_get_link_duplex(enetIfPtr, &crt_state.duplex);
-
- // Compare with previous state
- if (crt_state.connected != prev_state.connected) {
- if (crt_state.connected)
- tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_up, (void*) netif, 1);
- else
- tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_down, (void*) netif, 1);
- }
-
- if (crt_state.speed != prev_state.speed)
- BW_ENET_RCR_RMII_10T(enetIfPtr->deviceNumber, crt_state.speed == kEnetSpeed10M ? kEnetCfgSpeed10M : kEnetCfgSpeed100M);
-
- // TODO: duplex change requires disable/enable of Ethernet interface, to be implemented
-
- prev_state = crt_state;
- osDelay(PHY_TASK_PERIOD_MS);
- }
-}
-
-/**
- * Should be called at the beginning of the program to set up the
- * network interface.
- *
- * This function should be passed as a parameter to netif_add().
- *
- * @param[in] netif the lwip network interface structure for this netif
- * @return ERR_OK if the loopif is initialized
- * ERR_MEM if private data couldn't be allocated
- * any other err_t on error
- */
-err_t eth_arch_enetif_init(struct netif *netif)
-{
- err_t err;
-
- LWIP_ASSERT("netif != NULL", (netif != NULL));
-
- k64f_enetdata.netif = netif;
-
- /* set MAC hardware address */
-#if (MBED_MAC_ADDRESS_SUM != MBED_MAC_ADDR_INTERFACE)
- netif->hwaddr[0] = MBED_MAC_ADDR_0;
- netif->hwaddr[1] = MBED_MAC_ADDR_1;
- netif->hwaddr[2] = MBED_MAC_ADDR_2;
- netif->hwaddr[3] = MBED_MAC_ADDR_3;
- netif->hwaddr[4] = MBED_MAC_ADDR_4;
- netif->hwaddr[5] = MBED_MAC_ADDR_5;
-#else
- mbed_mac_address((char *)netif->hwaddr);
-#endif
- netif->hwaddr_len = ETHARP_HWADDR_LEN;
-
- /* maximum transfer unit */
- netif->mtu = 1500;
-
- /* device capabilities */
- // TODOETH: check if the flags are correct below
- netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET | NETIF_FLAG_IGMP;
-
- /* Initialize the hardware */
- netif->state = &k64f_enetdata;
- err = low_level_init(netif);
- if (err != ERR_OK)
- return err;
-
-#if LWIP_NETIF_HOSTNAME
- /* Initialize interface hostname */
- netif->hostname = "lwipk64f";
-#endif /* LWIP_NETIF_HOSTNAME */
-
- netif->name[0] = 'e';
- netif->name[1] = 'n';
-
- netif->output = k64f_etharp_output;
- netif->linkoutput = k64f_low_level_output;
-
- /* CMSIS-RTOS, start tasks */
-#ifdef CMSIS_OS_RTX
- memset(k64f_enetdata.xTXDCountSem.data, 0, sizeof(k64f_enetdata.xTXDCountSem.data));
- k64f_enetdata.xTXDCountSem.def.semaphore = k64f_enetdata.xTXDCountSem.data;
-#endif
- k64f_enetdata.xTXDCountSem.id = osSemaphoreCreate(&k64f_enetdata.xTXDCountSem.def, ENET_TX_RING_LEN);
-
- LWIP_ASSERT("xTXDCountSem creation error", (k64f_enetdata.xTXDCountSem.id != NULL));
-
- err = sys_mutex_new(&k64f_enetdata.TXLockMutex);
- LWIP_ASSERT("TXLockMutex creation error", (err == ERR_OK));
-
- /* Packet receive task */
- err = sys_sem_new(&k64f_enetdata.RxReadySem, 0);
- LWIP_ASSERT("RxReadySem creation error", (err == ERR_OK));
- sys_thread_new("receive_thread", packet_rx, netif->state, DEFAULT_THREAD_STACKSIZE, RX_PRIORITY);
-
- /* Transmit cleanup task */
- err = sys_sem_new(&k64f_enetdata.TxCleanSem, 0);
- LWIP_ASSERT("TxCleanSem creation error", (err == ERR_OK));
- sys_thread_new("txclean_thread", packet_tx, netif->state, DEFAULT_THREAD_STACKSIZE, TX_PRIORITY);
-
- /* PHY monitoring task */
- sys_thread_new("phy_thread", k64f_phy_task, netif, DEFAULT_THREAD_STACKSIZE, PHY_PRIORITY);
-
- /* Allow the PHY task to detect the initial link state and set up the proper flags */
- osDelay(10);
-
- return ERR_OK;
-}
-
-void eth_arch_enable_interrupts(void) {
- enet_hal_config_interrupt(BOARD_DEBUG_ENET_INSTANCE, (kEnetTxFrameInterrupt | kEnetRxFrameInterrupt), true);
- interrupt_enable(enet_irq_ids[BOARD_DEBUG_ENET_INSTANCE][enetIntMap[kEnetRxfInt]]);
- interrupt_enable(enet_irq_ids[BOARD_DEBUG_ENET_INSTANCE][enetIntMap[kEnetTxfInt]]);
-}
-
-void eth_arch_disable_interrupts(void) {
- interrupt_disable(enet_irq_ids[BOARD_DEBUG_ENET_INSTANCE][enetIntMap[kEnetRxfInt]]);
- interrupt_disable(enet_irq_ids[BOARD_DEBUG_ENET_INSTANCE][enetIntMap[kEnetTxfInt]]);
-}
-
-void ENET_Transmit_IRQHandler(void)
-{
- enet_mac_tx_isr(enetIfHandle);
-}
-
-void ENET_Receive_IRQHandler(void)
-{
- enet_mac_rx_isr(enetIfHandle);
-}
-
-#if FSL_FEATURE_ENET_SUPPORT_PTP
-void ENET_1588_Timer_IRQHandler(void)
-{
- enet_mac_ts_isr(enetIfHandle);
-}
-#endif
-/**
- * @}
- */
-
-/* --------------------------------- End Of File ------------------------------ */
-
--- a/arch/TARGET_K64F/k64f_emac_config.h Wed Jul 30 16:15:16 2014 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,47 +0,0 @@ -/* - * 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. - */ -#ifndef K64F_EMAC_CONFIG_H__ -#define K64F_EMAC_CONFIG_H__ - -#define ENET_RX_RING_LEN (16) -#define ENET_TX_RING_LEN (8) -#define ENET_RX_LARGE_BUFFER_NUM (0) -#define ENET_RX_BUFFER_ALIGNMENT (16) -#define ENET_TX_BUFFER_ALIGNMENT (16) -#define ENET_BD_ALIGNMENT (16) -#define ENET_MII_CLOCK (2500000L) -#define RX_BUF_ALIGNMENT (16) -#define TX_BUF_ALIGNMENT (8) -#define BOARD_DEBUG_ENET_INSTANCE (0) - -#define ENET_ETH_MAX_FLEN (1522) // recommended size for a VLAN frame - -#endif // #define K64F_EMAC_CONFIG_H__ -
--- a/arch/TARGET_K64F/lwipopts_conf.h Wed Jul 30 16:15:16 2014 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,29 +0,0 @@ -/* Copyright (C) 2012 mbed.org, MIT License - * - * Permission is hereby granted, free of charge, to any person obtaining a copy of this software - * and associated documentation files (the "Software"), to deal in the Software without restriction, - * including without limitation the rights to use, copy, modify, merge, publish, distribute, - * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all copies or - * substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING - * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, - * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -#ifndef LWIPOPTS_CONF_H -#define LWIPOPTS_CONF_H - -#include "k64f_emac_config.h" - -#define LWIP_TRANSPORT_ETHERNET 1 -#define ETH_PAD_SIZE 2 - -#define MEM_SIZE (ENET_RX_RING_LEN * (ENET_ETH_MAX_FLEN + RX_BUF_ALIGNMENT) + ENET_TX_RING_LEN * ENET_ETH_MAX_FLEN) - -#endif