David Smart / lwip-eth

minor derivative to reduce compiler warnings and tag read-only parameters as const.

Dependents:   EthernetInterface

Fork of lwip-eth by mbed official

arch/TARGET_Freescale/fsl_enet_driver.c@17:eb2c8c3aa1cd, 2014-09-11 (annotated)

Committer:
mbed_official
Date:
Thu Sep 11 17:00:30 2014 +0100
Revision:
17:eb2c8c3aa1cd
Parent:
arch/TARGET_K64F/fsl_enet_driver.c@13:409b1b671df2 
Synchronized with git revision c372035d60ac16c22e1313348a9e3f47293dc6b8



Full URL: https://github.com/mbedmicro/mbed/commit/c372035d60ac16c22e1313348a9e3f47293dc6b8/



Add derivative support to K64F and updates for MTS_GAMBIT

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 10:ab9330955226 1 /*
mbed_official 10:ab9330955226 2 * Copyright (c) 2013 - 2014, Freescale Semiconductor, Inc.
mbed_official 10:ab9330955226 3 * All rights reserved.
mbed_official 10:ab9330955226 4 *
mbed_official 10:ab9330955226 5 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 10:ab9330955226 6 * are permitted provided that the following conditions are met:
mbed_official 10:ab9330955226 7 *
mbed_official 10:ab9330955226 8 * o Redistributions of source code must retain the above copyright notice, this list
mbed_official 10:ab9330955226 9 * of conditions and the following disclaimer.
mbed_official 10:ab9330955226 10 *
mbed_official 10:ab9330955226 11 * o Redistributions in binary form must reproduce the above copyright notice, this
mbed_official 10:ab9330955226 12 * list of conditions and the following disclaimer in the documentation and/or
mbed_official 10:ab9330955226 13 * other materials provided with the distribution.
mbed_official 10:ab9330955226 14 *
mbed_official 10:ab9330955226 15 * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
mbed_official 10:ab9330955226 16 * contributors may be used to endorse or promote products derived from this
mbed_official 10:ab9330955226 17 * software without specific prior written permission.
mbed_official 10:ab9330955226 18 *
mbed_official 10:ab9330955226 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
mbed_official 10:ab9330955226 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
mbed_official 10:ab9330955226 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 10:ab9330955226 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
mbed_official 10:ab9330955226 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
mbed_official 10:ab9330955226 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
mbed_official 10:ab9330955226 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
mbed_official 10:ab9330955226 26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
mbed_official 10:ab9330955226 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
mbed_official 10:ab9330955226 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 10:ab9330955226 29 */
mbed_official 10:ab9330955226 30
mbed_official 10:ab9330955226 31 /* Modified by mbed for the lwIP port */
mbed_official 10:ab9330955226 32
mbed_official 10:ab9330955226 33 #include "fsl_enet_driver.h"
mbed_official 10:ab9330955226 34 #include "fsl_enet_hal.h"
mbed_official 10:ab9330955226 35 #include "fsl_clock_manager.h"
mbed_official 10:ab9330955226 36 #include "fsl_interrupt_manager.h"
mbed_official 10:ab9330955226 37 #include <string.h>
mbed_official 10:ab9330955226 38
mbed_official 10:ab9330955226 39 #include "sys_arch.h"
mbed_official 10:ab9330955226 40
mbed_official 10:ab9330955226 41 /*******************************************************************************
mbed_official 10:ab9330955226 42 * Variables
mbed_official 10:ab9330955226 43 ******************************************************************************/
mbed_official 10:ab9330955226 44 /*! @brief Define ENET's IRQ list */
mbed_official 10:ab9330955226 45
mbed_official 10:ab9330955226 46 void *enetIfHandle;
mbed_official 10:ab9330955226 47
mbed_official 10:ab9330955226 48 /*! @brief Define MAC driver API structure and for application of stack adaptor layer*/
mbed_official 10:ab9330955226 49 const enet_mac_api_t g_enetMacApi =
mbed_official 10:ab9330955226 50 {
mbed_official 10:ab9330955226 51 enet_mac_init,
mbed_official 10:ab9330955226 52 NULL, // enet_mac_deinit,
mbed_official 10:ab9330955226 53 NULL, // enet_mac_send,
mbed_official 10:ab9330955226 54 #if !ENET_RECEIVE_ALL_INTERRUPT
mbed_official 10:ab9330955226 55 NULL, // enet_mac_receive,
mbed_official 10:ab9330955226 56 #endif
mbed_official 10:ab9330955226 57 enet_mii_read,
mbed_official 10:ab9330955226 58 enet_mii_write,
mbed_official 10:ab9330955226 59 NULL, // enet_mac_add_multicast_group,
mbed_official 10:ab9330955226 60 NULL, //enet_mac_leave_multicast_group,
mbed_official 10:ab9330955226 61 };
mbed_official 10:ab9330955226 62 /*******************************************************************************
mbed_official 10:ab9330955226 63 * Code
mbed_official 10:ab9330955226 64 ******************************************************************************/
mbed_official 10:ab9330955226 65
mbed_official 10:ab9330955226 66 // NOTE: we need these functions to be non-blocking fpr the PHY task, hence the
mbed_official 10:ab9330955226 67 // osDelay() below
mbed_official 10:ab9330955226 68
mbed_official 10:ab9330955226 69 /*FUNCTION****************************************************************
mbed_official 10:ab9330955226 70 *
mbed_official 10:ab9330955226 71 * Function Name: enet_mii_read
mbed_official 10:ab9330955226 72 * Return Value: The execution status.
mbed_official 10:ab9330955226 73 * Description: Read function.
mbed_official 10:ab9330955226 74 * This interface read data over the (R)MII bus from the specified PHY register,
mbed_official 10:ab9330955226 75 * This function is called by all PHY interfaces.
mbed_official 10:ab9330955226 76 *END*********************************************************************/
mbed_official 10:ab9330955226 77 uint32_t enet_mii_read(uint32_t instance, uint32_t phyAddr, uint32_t phyReg, uint32_t *dataPtr)
mbed_official 10:ab9330955226 78 {
mbed_official 10:ab9330955226 79 uint32_t counter;
mbed_official 10:ab9330955226 80
mbed_official 10:ab9330955226 81 /* Check the input parameters*/
mbed_official 10:ab9330955226 82 if (!dataPtr)
mbed_official 10:ab9330955226 83 {
mbed_official 10:ab9330955226 84 return kStatus_ENET_InvalidInput;
mbed_official 10:ab9330955226 85 }
mbed_official 10:ab9330955226 86
mbed_official 10:ab9330955226 87 /* Check if the mii is enabled*/
mbed_official 10:ab9330955226 88 if (!enet_hal_is_mii_enabled(instance))
mbed_official 10:ab9330955226 89 {
mbed_official 10:ab9330955226 90 return kStatus_ENET_Miiuninitialized;
mbed_official 10:ab9330955226 91 }
mbed_official 10:ab9330955226 92
mbed_official 10:ab9330955226 93 /* Clear the MII interrupt event*/
mbed_official 10:ab9330955226 94 enet_hal_clear_interrupt(instance, kEnetMiiInterrupt);
mbed_official 10:ab9330955226 95
mbed_official 10:ab9330955226 96 /* Read command operation*/
mbed_official 10:ab9330955226 97 enet_hal_set_mii_command(instance, phyAddr, phyReg, kEnetReadValidFrame, 0);
mbed_official 10:ab9330955226 98
mbed_official 10:ab9330955226 99 /* Poll for MII complete*/
mbed_official 10:ab9330955226 100 for (counter = 0; counter < kEnetMaxTimeout; counter++)
mbed_official 10:ab9330955226 101 {
mbed_official 10:ab9330955226 102 if (enet_hal_get_interrupt_status(instance, kEnetMiiInterrupt))
mbed_official 10:ab9330955226 103 {
mbed_official 10:ab9330955226 104 break;
mbed_official 10:ab9330955226 105 }
mbed_official 10:ab9330955226 106 osDelay(1);
mbed_official 10:ab9330955226 107 }
mbed_official 10:ab9330955226 108
mbed_official 10:ab9330955226 109 /* Check for timeout*/
mbed_official 10:ab9330955226 110 if (counter == kEnetMaxTimeout)
mbed_official 10:ab9330955226 111 {
mbed_official 10:ab9330955226 112 return kStatus_ENET_TimeOut;
mbed_official 10:ab9330955226 113 }
mbed_official 10:ab9330955226 114
mbed_official 10:ab9330955226 115 /* Get data from mii register*/
mbed_official 10:ab9330955226 116 *dataPtr = enet_hal_get_mii_data(instance);
mbed_official 10:ab9330955226 117
mbed_official 10:ab9330955226 118 /* Clear MII interrupt event*/
mbed_official 10:ab9330955226 119 enet_hal_clear_interrupt(instance, kEnetMiiInterrupt);
mbed_official 10:ab9330955226 120
mbed_official 10:ab9330955226 121 return kStatus_ENET_Success;
mbed_official 10:ab9330955226 122 }
mbed_official 10:ab9330955226 123
mbed_official 10:ab9330955226 124 /*FUNCTION****************************************************************
mbed_official 10:ab9330955226 125 *
mbed_official 10:ab9330955226 126 * Function Name: enet_mii_write
mbed_official 10:ab9330955226 127 * Return Value: The execution status.
mbed_official 10:ab9330955226 128 * Description: Write function.
mbed_official 10:ab9330955226 129 * This interface write data over the (R)MII bus to the specified PHY register.
mbed_official 10:ab9330955226 130 * This function is called by all PHY interfaces.
mbed_official 10:ab9330955226 131 *END*********************************************************************/
mbed_official 10:ab9330955226 132 uint32_t enet_mii_write(uint32_t instance, uint32_t phyAddr, uint32_t phyReg, uint32_t data)
mbed_official 10:ab9330955226 133 {
mbed_official 10:ab9330955226 134 uint32_t counter;
mbed_official 10:ab9330955226 135
mbed_official 10:ab9330955226 136 /* Check if the mii is enabled*/
mbed_official 10:ab9330955226 137 if (!enet_hal_is_mii_enabled(instance))
mbed_official 10:ab9330955226 138 {
mbed_official 10:ab9330955226 139 return kStatus_ENET_Miiuninitialized;
mbed_official 10:ab9330955226 140 }
mbed_official 10:ab9330955226 141
mbed_official 10:ab9330955226 142 /* Clear the MII interrupt event*/
mbed_official 10:ab9330955226 143 enet_hal_clear_interrupt(instance, kEnetMiiInterrupt);
mbed_official 10:ab9330955226 144
mbed_official 10:ab9330955226 145 /* Read command operation*/
mbed_official 10:ab9330955226 146 enet_hal_set_mii_command(instance, phyAddr, phyReg, kEnetWriteValidFrame, data);
mbed_official 10:ab9330955226 147
mbed_official 10:ab9330955226 148 /* Poll for MII complete*/
mbed_official 10:ab9330955226 149 for (counter = 0; counter < kEnetMaxTimeout; counter++)
mbed_official 10:ab9330955226 150 {
mbed_official 10:ab9330955226 151 if (enet_hal_get_interrupt_status(instance, kEnetMiiInterrupt))
mbed_official 10:ab9330955226 152 {
mbed_official 10:ab9330955226 153 break;
mbed_official 10:ab9330955226 154 }
mbed_official 10:ab9330955226 155 osDelay(1);
mbed_official 10:ab9330955226 156 }
mbed_official 10:ab9330955226 157
mbed_official 10:ab9330955226 158 /* Check for timeout*/
mbed_official 10:ab9330955226 159 if (counter == kEnetMaxTimeout)
mbed_official 10:ab9330955226 160 {
mbed_official 10:ab9330955226 161 return kStatus_ENET_TimeOut;
mbed_official 10:ab9330955226 162 }
mbed_official 10:ab9330955226 163
mbed_official 10:ab9330955226 164 /* Clear MII intrrupt event*/
mbed_official 10:ab9330955226 165 enet_hal_clear_interrupt(instance, kEnetMiiInterrupt);
mbed_official 10:ab9330955226 166
mbed_official 10:ab9330955226 167 return kStatus_ENET_Success;
mbed_official 10:ab9330955226 168 }
mbed_official 10:ab9330955226 169 /*FUNCTION****************************************************************
mbed_official 10:ab9330955226 170 *
mbed_official 10:ab9330955226 171 * Function Name: enet_mac_mii_init
mbed_official 10:ab9330955226 172 * Return Value: The execution status.
mbed_official 10:ab9330955226 173 * Description:Initialize the ENET Mac mii(mdc/mdio)interface.
mbed_official 10:ab9330955226 174 *END*********************************************************************/
mbed_official 10:ab9330955226 175 uint32_t enet_mac_mii_init(enet_dev_if_t * enetIfPtr)
mbed_official 10:ab9330955226 176 {
mbed_official 10:ab9330955226 177 uint32_t frequency;
mbed_official 10:ab9330955226 178
mbed_official 10:ab9330955226 179 /* Check the input parameters*/
mbed_official 10:ab9330955226 180 if (enetIfPtr == NULL)
mbed_official 10:ab9330955226 181 {
mbed_official 10:ab9330955226 182 return kStatus_ENET_InvalidInput;
mbed_official 10:ab9330955226 183 }
mbed_official 10:ab9330955226 184
mbed_official 10:ab9330955226 185 /* Configure mii speed*/
mbed_official 10:ab9330955226 186 clock_manager_get_frequency(kSystemClock, &frequency);
mbed_official 10:ab9330955226 187 enet_hal_config_mii(enetIfPtr->deviceNumber, (frequency/(2 * enetIfPtr->macCfgPtr->miiClock) + 1),
mbed_official 10:ab9330955226 188 kEnetMdioHoldOneClkCycle, false);
mbed_official 10:ab9330955226 189
mbed_official 10:ab9330955226 190 return kStatus_ENET_Success;
mbed_official 10:ab9330955226 191 }
mbed_official 10:ab9330955226 192
mbed_official 10:ab9330955226 193 /*FUNCTION****************************************************************
mbed_official 10:ab9330955226 194 *
mbed_official 10:ab9330955226 195 * Function Name: enet_mac_rxbd_init
mbed_official 10:ab9330955226 196 * Return Value: The execution status.
mbed_official 10:ab9330955226 197 * Description:Initialize the ENET receive buffer descriptors.
mbed_official 10:ab9330955226 198 * Note: If you do receive on receive interrupt handler the receive
mbed_official 10:ab9330955226 199 * data buffer number can be the same as the receive descriptor numbers.
mbed_official 10:ab9330955226 200 * But if you are polling receive frames please make sure the receive data
mbed_official 10:ab9330955226 201 * buffers are more than buffer descriptors to guarantee a good performance.
mbed_official 10:ab9330955226 202 *END*********************************************************************/
mbed_official 10:ab9330955226 203 uint32_t enet_mac_rxbd_init(enet_dev_if_t * enetIfPtr, enet_rxbd_config_t *rxbdCfg)
mbed_official 10:ab9330955226 204 {
mbed_official 10:ab9330955226 205 /* Check the input parameters*/
mbed_official 10:ab9330955226 206 if ((!enetIfPtr) || (!rxbdCfg))
mbed_official 10:ab9330955226 207 {
mbed_official 10:ab9330955226 208 return kStatus_ENET_InvalidInput;
mbed_official 10:ab9330955226 209 }
mbed_official 10:ab9330955226 210
mbed_official 10:ab9330955226 211 enetIfPtr->macContextPtr->bufferdescSize = enet_hal_get_bd_size();
mbed_official 10:ab9330955226 212
mbed_official 10:ab9330955226 213 /* Initialize the bd status*/
mbed_official 10:ab9330955226 214 enetIfPtr->macContextPtr->isRxFull = false;
mbed_official 10:ab9330955226 215
mbed_official 10:ab9330955226 216 /* Initialize receive bd base address and current address*/
mbed_official 10:ab9330955226 217 enetIfPtr->macContextPtr->rxBdBasePtr = rxbdCfg->rxBdPtrAlign;
mbed_official 10:ab9330955226 218 enetIfPtr->macContextPtr->rxBdCurPtr = enetIfPtr->macContextPtr->rxBdBasePtr;
mbed_official 10:ab9330955226 219 enetIfPtr->macContextPtr->rxBdDirtyPtr = enetIfPtr->macContextPtr->rxBdBasePtr;
mbed_official 10:ab9330955226 220 enet_hal_set_rxbd_address(enetIfPtr->deviceNumber, (uint32_t)(enetIfPtr->macContextPtr->rxBdBasePtr));
mbed_official 10:ab9330955226 221
mbed_official 10:ab9330955226 222 return kStatus_ENET_Success;
mbed_official 10:ab9330955226 223 }
mbed_official 10:ab9330955226 224
mbed_official 10:ab9330955226 225 /*FUNCTION****************************************************************
mbed_official 10:ab9330955226 226 *
mbed_official 10:ab9330955226 227 * Function Name: enet_mac_txbd_init
mbed_official 10:ab9330955226 228 * Return Value: The execution status.
mbed_official 10:ab9330955226 229 * Description:Initialize the ENET transmit buffer descriptors.
mbed_official 10:ab9330955226 230 * This function prepare all of the transmit buffer descriptors.
mbed_official 10:ab9330955226 231 *END*********************************************************************/
mbed_official 10:ab9330955226 232 uint32_t enet_mac_txbd_init(enet_dev_if_t * enetIfPtr, enet_txbd_config_t *txbdCfg)
mbed_official 10:ab9330955226 233 {
mbed_official 10:ab9330955226 234 /* Check the input parameters*/
mbed_official 10:ab9330955226 235 if ((!enetIfPtr) || (!txbdCfg))
mbed_official 10:ab9330955226 236 {
mbed_official 10:ab9330955226 237 return kStatus_ENET_InvalidInput;
mbed_official 10:ab9330955226 238 }
mbed_official 10:ab9330955226 239
mbed_official 10:ab9330955226 240 /* Initialize the bd status*/
mbed_official 10:ab9330955226 241 enetIfPtr->macContextPtr->isTxFull = false;
mbed_official 10:ab9330955226 242
mbed_official 10:ab9330955226 243 /* Initialize transmit bd base address and current address*/
mbed_official 10:ab9330955226 244 enetIfPtr->macContextPtr->txBdBasePtr = txbdCfg->txBdPtrAlign;
mbed_official 10:ab9330955226 245 enetIfPtr->macContextPtr->txBdCurPtr = enetIfPtr->macContextPtr->txBdBasePtr;
mbed_official 10:ab9330955226 246 enetIfPtr->macContextPtr->txBdDirtyPtr = enetIfPtr->macContextPtr->txBdBasePtr;
mbed_official 10:ab9330955226 247 enet_hal_set_txbd_address(enetIfPtr->deviceNumber, (uint32_t)(enetIfPtr->macContextPtr->txBdBasePtr));
mbed_official 10:ab9330955226 248 return kStatus_ENET_Success;
mbed_official 10:ab9330955226 249 }
mbed_official 10:ab9330955226 250
mbed_official 10:ab9330955226 251 /*FUNCTION****************************************************************
mbed_official 10:ab9330955226 252 *
mbed_official 10:ab9330955226 253 * Function Name: enet_mac_configure_fifo_accel
mbed_official 10:ab9330955226 254 * Return Value: The execution status.
mbed_official 10:ab9330955226 255 * Description: Configure the ENET FIFO and Accelerator.
mbed_official 10:ab9330955226 256 *END*********************************************************************/
mbed_official 10:ab9330955226 257 uint32_t enet_mac_configure_fifo_accel(enet_dev_if_t * enetIfPtr)
mbed_official 10:ab9330955226 258 {
mbed_official 10:ab9330955226 259 enet_config_rx_fifo_t rxFifo;
mbed_official 10:ab9330955226 260 enet_config_tx_fifo_t txFifo;
mbed_official 10:ab9330955226 261
mbed_official 10:ab9330955226 262 /* Check the input parameters*/
mbed_official 10:ab9330955226 263 if (!enetIfPtr)
mbed_official 10:ab9330955226 264 {
mbed_official 10:ab9330955226 265 return kStatus_ENET_InvalidInput;
mbed_official 10:ab9330955226 266 }
mbed_official 13:409b1b671df2 267
mbed_official 13:409b1b671df2 268 /* Initialize values that will not be initialized later on */
mbed_official 13:409b1b671df2 269 rxFifo.rxEmpty = 0;
mbed_official 13:409b1b671df2 270 rxFifo.rxFull = 0;
mbed_official 13:409b1b671df2 271 txFifo.isStoreForwardEnabled = 0;
mbed_official 13:409b1b671df2 272 txFifo.txFifoWrite = 0;
mbed_official 13:409b1b671df2 273 txFifo.txEmpty = 0;
mbed_official 10:ab9330955226 274
mbed_official 10:ab9330955226 275 /* Configure tx/rx accelerator*/
mbed_official 10:ab9330955226 276 if (enetIfPtr->macCfgPtr->isRxAccelEnabled)
mbed_official 10:ab9330955226 277 {
mbed_official 10:ab9330955226 278 enet_hal_config_rx_accelerator(enetIfPtr->deviceNumber,
mbed_official 10:ab9330955226 279 (enet_config_rx_accelerator_t *)&(enetIfPtr->macCfgPtr->rxAcceler));
mbed_official 10:ab9330955226 280 if ((enetIfPtr->macCfgPtr->rxAcceler.isIpcheckEnabled) || (enetIfPtr->macCfgPtr->rxAcceler.isProtocolCheckEnabled))
mbed_official 10:ab9330955226 281 {
mbed_official 10:ab9330955226 282 rxFifo.rxFull = 0;
mbed_official 10:ab9330955226 283 }
mbed_official 10:ab9330955226 284 }
mbed_official 10:ab9330955226 285 if (enetIfPtr->macCfgPtr->isTxAccelEnabled)
mbed_official 10:ab9330955226 286 {
mbed_official 10:ab9330955226 287 enet_hal_config_tx_accelerator(enetIfPtr->deviceNumber,
mbed_official 10:ab9330955226 288 (enet_config_tx_accelerator_t *)&(enetIfPtr->macCfgPtr->txAcceler));
mbed_official 10:ab9330955226 289 if ((enetIfPtr->macCfgPtr->txAcceler.isIpCheckEnabled) || (enetIfPtr->macCfgPtr->txAcceler.isProtocolCheckEnabled))
mbed_official 10:ab9330955226 290 {
mbed_official 10:ab9330955226 291 txFifo.isStoreForwardEnabled = 1;
mbed_official 10:ab9330955226 292 }
mbed_official 10:ab9330955226 293 }
mbed_official 10:ab9330955226 294 if (enetIfPtr->macCfgPtr->isStoreAndFwEnabled)
mbed_official 10:ab9330955226 295 {
mbed_official 10:ab9330955226 296 rxFifo.rxFull = 0;
mbed_official 10:ab9330955226 297 txFifo.isStoreForwardEnabled = 1;
mbed_official 10:ab9330955226 298 }
mbed_official 10:ab9330955226 299
mbed_official 13:409b1b671df2 300
mbed_official 13:409b1b671df2 301 /* Set TFWR value if STRFWD is not being used */
mbed_official 13:409b1b671df2 302 if (txFifo.isStoreForwardEnabled == 1)
mbed_official 13:409b1b671df2 303 txFifo.txFifoWrite = 0;
mbed_official 13:409b1b671df2 304 else
mbed_official 13:409b1b671df2 305 /* TFWR value is a trade-off between transmit latency and risk of transmit FIFO underrun due to contention for the system bus
mbed_official 13:409b1b671df2 306 TFWR = 15 means transmission will begin once 960 bytes has been written to the Tx FIFO (for frames larger than 960 bytes)
mbed_official 13:409b1b671df2 307 See Section 45.4.18 - Transmit FIFO Watermark Register of the K64F Reference Manual for details */
mbed_official 13:409b1b671df2 308 txFifo.txFifoWrite = 15;
mbed_official 13:409b1b671df2 309
mbed_official 10:ab9330955226 310 /* Configure tx/rx FIFO with default value*/
mbed_official 10:ab9330955226 311 rxFifo.rxAlmostEmpty = 4;
mbed_official 10:ab9330955226 312 rxFifo.rxAlmostFull = 4;
mbed_official 10:ab9330955226 313 txFifo.txAlmostEmpty = 4;
mbed_official 10:ab9330955226 314 txFifo.txAlmostFull = 8;
mbed_official 10:ab9330955226 315 enet_hal_config_rx_fifo(enetIfPtr->deviceNumber, &rxFifo);
mbed_official 10:ab9330955226 316 enet_hal_config_tx_fifo(enetIfPtr->deviceNumber, &txFifo);
mbed_official 10:ab9330955226 317
mbed_official 10:ab9330955226 318 return kStatus_ENET_Success;
mbed_official 10:ab9330955226 319 }
mbed_official 10:ab9330955226 320
mbed_official 10:ab9330955226 321 /*FUNCTION****************************************************************
mbed_official 10:ab9330955226 322 *
mbed_official 10:ab9330955226 323 * Function Name: enet_mac_configure_controller
mbed_official 10:ab9330955226 324 * Return Value: The execution status.
mbed_official 10:ab9330955226 325 * Description: Configure the ENET controller with the basic configuration.
mbed_official 10:ab9330955226 326 *END*********************************************************************/
mbed_official 10:ab9330955226 327 uint32_t enet_mac_configure_controller(enet_dev_if_t * enetIfPtr)
mbed_official 10:ab9330955226 328 {
mbed_official 10:ab9330955226 329 uint32_t macCtlCfg;
mbed_official 10:ab9330955226 330
mbed_official 10:ab9330955226 331 /* Check the input parameters*/
mbed_official 10:ab9330955226 332 if (enetIfPtr == NULL)
mbed_official 10:ab9330955226 333 {
mbed_official 10:ab9330955226 334 return kStatus_ENET_InvalidInput;
mbed_official 10:ab9330955226 335 }
mbed_official 10:ab9330955226 336
mbed_official 10:ab9330955226 337 macCtlCfg = enetIfPtr->macCfgPtr->macCtlConfigure;
mbed_official 10:ab9330955226 338 /* Configure rmii/mii interface*/
mbed_official 10:ab9330955226 339 enet_hal_config_rmii(enetIfPtr->deviceNumber, enetIfPtr->macCfgPtr->rmiiCfgMode,
mbed_official 10:ab9330955226 340 enetIfPtr->macCfgPtr->speed, enetIfPtr->macCfgPtr->duplex, false,
mbed_official 10:ab9330955226 341 (macCtlCfg & kEnetRxMiiLoopback));
mbed_official 10:ab9330955226 342 /* Configure receive buffer size*/
mbed_official 10:ab9330955226 343 if (enetIfPtr->macCfgPtr->isVlanEnabled)
mbed_official 10:ab9330955226 344 {
mbed_official 10:ab9330955226 345 enetIfPtr->maxFrameSize = kEnetMaxFrameVlanSize;
mbed_official 10:ab9330955226 346 enet_hal_set_rx_max_size(enetIfPtr->deviceNumber,
mbed_official 10:ab9330955226 347 enetIfPtr->macContextPtr->rxBufferSizeAligned, kEnetMaxFrameVlanSize);
mbed_official 10:ab9330955226 348 }
mbed_official 10:ab9330955226 349 else
mbed_official 10:ab9330955226 350 {
mbed_official 10:ab9330955226 351 enetIfPtr->maxFrameSize = kEnetMaxFrameSize;
mbed_official 10:ab9330955226 352 enet_hal_set_rx_max_size(enetIfPtr->deviceNumber,
mbed_official 10:ab9330955226 353 enetIfPtr->macContextPtr->rxBufferSizeAligned, kEnetMaxFrameSize);
mbed_official 10:ab9330955226 354 }
mbed_official 10:ab9330955226 355
mbed_official 10:ab9330955226 356 /* Set receive controller promiscuous */
mbed_official 10:ab9330955226 357 enet_hal_config_promiscuous(enetIfPtr->deviceNumber, macCtlCfg & kEnetRxPromiscuousEnable);
mbed_official 10:ab9330955226 358 /* Set receive flow control*/
mbed_official 10:ab9330955226 359 enet_hal_enable_flowcontrol(enetIfPtr->deviceNumber, (macCtlCfg & kEnetRxFlowControlEnable));
mbed_official 10:ab9330955226 360 /* Set received PAUSE frames are forwarded/terminated*/
mbed_official 10:ab9330955226 361 enet_hal_enable_pauseforward(enetIfPtr->deviceNumber, (macCtlCfg & kEnetRxPauseFwdEnable));
mbed_official 10:ab9330955226 362 /* Set receive broadcast frame reject*/
mbed_official 10:ab9330955226 363 enet_hal_enable_broadcastreject(enetIfPtr->deviceNumber, (macCtlCfg & kEnetRxBcRejectEnable));
mbed_official 10:ab9330955226 364 /* Set padding is removed from the received frame*/
mbed_official 10:ab9330955226 365 enet_hal_enable_padremove(enetIfPtr->deviceNumber, (macCtlCfg & kEnetRxPadRemoveEnable));
mbed_official 10:ab9330955226 366 /* Set the crc of the received frame is stripped from the frame*/
mbed_official 10:ab9330955226 367 enet_hal_enable_rxcrcforward(enetIfPtr->deviceNumber, (macCtlCfg & kEnetRxCrcFwdEnable));
mbed_official 10:ab9330955226 368 /* Set receive payload length check*/
mbed_official 10:ab9330955226 369 enet_hal_enable_payloadcheck(enetIfPtr->deviceNumber, (macCtlCfg & kEnetPayloadlenCheckEnable));
mbed_official 10:ab9330955226 370 /* Set control sleep mode*/
mbed_official 10:ab9330955226 371 enet_hal_enable_sleep(enetIfPtr->deviceNumber, (macCtlCfg & kEnetSleepModeEnable));
mbed_official 10:ab9330955226 372 return kStatus_ENET_Success;
mbed_official 10:ab9330955226 373 }
mbed_official 10:ab9330955226 374
mbed_official 10:ab9330955226 375 /*FUNCTION****************************************************************
mbed_official 10:ab9330955226 376 *
mbed_official 10:ab9330955226 377 * Function Name: enet_mac_init
mbed_official 10:ab9330955226 378 * Return Value: The execution status.
mbed_official 10:ab9330955226 379 * Description:Initialize the ENET device with the basic configuration
mbed_official 10:ab9330955226 380 * When ENET is used, this function need to be called by the NET initialize
mbed_official 10:ab9330955226 381 * interface.
mbed_official 10:ab9330955226 382 *END*********************************************************************/
mbed_official 10:ab9330955226 383 uint32_t enet_mac_init(enet_dev_if_t * enetIfPtr, enet_rxbd_config_t *rxbdCfg,
mbed_official 10:ab9330955226 384 enet_txbd_config_t *txbdCfg)
mbed_official 10:ab9330955226 385 {
mbed_official 10:ab9330955226 386 uint32_t timeOut = 0;
mbed_official 10:ab9330955226 387 uint32_t devNumber, result = 0;
mbed_official 10:ab9330955226 388
mbed_official 10:ab9330955226 389 /* Check the input parameters*/
mbed_official 10:ab9330955226 390 if (enetIfPtr == NULL)
mbed_official 10:ab9330955226 391 {
mbed_official 10:ab9330955226 392 return kStatus_ENET_InvalidInput;
mbed_official 10:ab9330955226 393 }
mbed_official 10:ab9330955226 394
mbed_official 10:ab9330955226 395 /* Get device number and check the parameter*/
mbed_official 10:ab9330955226 396 devNumber = enetIfPtr->deviceNumber;
mbed_official 10:ab9330955226 397
mbed_official 10:ab9330955226 398 /* Store the global ENET structure for ISR input parameters for instance 0*/
mbed_official 10:ab9330955226 399 if (!devNumber)
mbed_official 10:ab9330955226 400 {
mbed_official 10:ab9330955226 401 enetIfHandle = enetIfPtr;
mbed_official 10:ab9330955226 402 }
mbed_official 10:ab9330955226 403
mbed_official 10:ab9330955226 404 /* Turn on ENET module clock gate */
mbed_official 10:ab9330955226 405 clock_manager_set_gate(kClockModuleENET, 0U, true);
mbed_official 10:ab9330955226 406
mbed_official 10:ab9330955226 407 /* Reset ENET mac*/
mbed_official 10:ab9330955226 408 enet_hal_reset_ethernet(devNumber);
mbed_official 10:ab9330955226 409 while ((!enet_hal_is_reset_completed(devNumber)) && (timeOut < kEnetMaxTimeout))
mbed_official 10:ab9330955226 410 {
mbed_official 10:ab9330955226 411 time_delay(1);
mbed_official 10:ab9330955226 412 timeOut++;
mbed_official 10:ab9330955226 413 }
mbed_official 10:ab9330955226 414
mbed_official 10:ab9330955226 415 /* Check out if timeout*/
mbed_official 10:ab9330955226 416 if (timeOut == kEnetMaxTimeout)
mbed_official 10:ab9330955226 417 {
mbed_official 10:ab9330955226 418 return kStatus_ENET_TimeOut;
mbed_official 10:ab9330955226 419 }
mbed_official 10:ab9330955226 420
mbed_official 10:ab9330955226 421 /* Disable all ENET mac interrupt and Clear all interrupt events*/
mbed_official 10:ab9330955226 422 enet_hal_config_interrupt(devNumber, kEnetAllInterrupt, false);
mbed_official 10:ab9330955226 423 enet_hal_clear_interrupt(devNumber, kEnetAllInterrupt);
mbed_official 10:ab9330955226 424
mbed_official 10:ab9330955226 425 /* Program this station's physical address*/
mbed_official 10:ab9330955226 426 enet_hal_set_mac_address(devNumber, enetIfPtr->macCfgPtr->macAddr);
mbed_official 10:ab9330955226 427
mbed_official 10:ab9330955226 428 /* Clear group and individual hash register*/
mbed_official 10:ab9330955226 429 enet_hal_set_group_hashtable(devNumber, 0, kEnetSpecialAddressInit);
mbed_official 10:ab9330955226 430 enet_hal_set_individual_hashtable(devNumber, 0, kEnetSpecialAddressInit);
mbed_official 10:ab9330955226 431
mbed_official 10:ab9330955226 432 /* Configure mac controller*/
mbed_official 10:ab9330955226 433 result = enet_mac_configure_controller(enetIfPtr);
mbed_official 10:ab9330955226 434 if(result != kStatus_ENET_Success)
mbed_official 10:ab9330955226 435 {
mbed_official 10:ab9330955226 436 return result;
mbed_official 10:ab9330955226 437 }
mbed_official 10:ab9330955226 438 /* Clear mib zero counters*/
mbed_official 10:ab9330955226 439 enet_hal_clear_mib(devNumber, true);
mbed_official 10:ab9330955226 440
mbed_official 10:ab9330955226 441 /* Initialize FIFO and accelerator*/
mbed_official 10:ab9330955226 442 result = enet_mac_configure_fifo_accel(enetIfPtr);
mbed_official 10:ab9330955226 443 if(result != kStatus_ENET_Success)
mbed_official 10:ab9330955226 444 {
mbed_official 10:ab9330955226 445 return result;
mbed_official 10:ab9330955226 446 }
mbed_official 10:ab9330955226 447 /* Initialize receive buffer descriptors*/
mbed_official 10:ab9330955226 448 result = enet_mac_rxbd_init(enetIfPtr, rxbdCfg);
mbed_official 10:ab9330955226 449 if(result != kStatus_ENET_Success)
mbed_official 10:ab9330955226 450 {
mbed_official 10:ab9330955226 451 return result;
mbed_official 10:ab9330955226 452 }
mbed_official 10:ab9330955226 453 /* Initialize transmit buffer descriptors*/
mbed_official 10:ab9330955226 454 result = enet_mac_txbd_init(enetIfPtr, txbdCfg);
mbed_official 10:ab9330955226 455 if(result != kStatus_ENET_Success)
mbed_official 10:ab9330955226 456 {
mbed_official 10:ab9330955226 457 return result;
mbed_official 10:ab9330955226 458 }
mbed_official 10:ab9330955226 459 /* Initialize rmii/mii interface*/
mbed_official 10:ab9330955226 460 result = enet_mac_mii_init(enetIfPtr);
mbed_official 10:ab9330955226 461 if (result != kStatus_ENET_Success)
mbed_official 10:ab9330955226 462 {
mbed_official 10:ab9330955226 463 return result;
mbed_official 10:ab9330955226 464 }
mbed_official 10:ab9330955226 465
mbed_official 10:ab9330955226 466 return kStatus_ENET_Success;
mbed_official 10:ab9330955226 467 }
mbed_official 10:ab9330955226 468
mbed_official 10:ab9330955226 469 /*******************************************************************************
mbed_official 10:ab9330955226 470 * EOF
mbed_official 10:ab9330955226 471 ******************************************************************************/
mbed_official 10:ab9330955226 472