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31 /* Modified by mbed for the lwIP port */
33 #include "fsl_enet_driver.h"
34 #include "fsl_enet_hal.h"
35 #include "fsl_clock_manager.h"
36 #include "fsl_interrupt_manager.h"
41 /*******************************************************************************
43 ******************************************************************************/
44 /*! @brief Define ENET's IRQ list */
48 /*! @brief Define MAC driver API structure and for application of stack adaptor layer*/
49 const enet_mac_api_t g_enetMacApi =
52 NULL, // enet_mac_deinit,
53 NULL, // enet_mac_send,
54 #if !ENET_RECEIVE_ALL_INTERRUPT
55 NULL, // enet_mac_receive,
59 NULL, // enet_mac_add_multicast_group,
60 NULL, //enet_mac_leave_multicast_group,
62 /*******************************************************************************
64 ******************************************************************************/
66 // NOTE: we need these functions to be non-blocking fpr the PHY task, hence the
69 /*FUNCTION****************************************************************
71 * Function Name: enet_mii_read
72 * Return Value: The execution status.
73 * Description: Read function.
74 * This interface read data over the (R)MII bus from the specified PHY register,
75 * This function is called by all PHY interfaces.
76 *END*********************************************************************/
77 uint32_t enet_mii_read(uint32_t instance, uint32_t phyAddr, uint32_t phyReg, uint32_t *dataPtr)
81 /* Check the input parameters*/
84 return kStatus_ENET_InvalidInput;
87 /* Check if the mii is enabled*/
88 if (!enet_hal_is_mii_enabled(instance))
90 return kStatus_ENET_Miiuninitialized;
93 /* Clear the MII interrupt event*/
94 enet_hal_clear_interrupt(instance, kEnetMiiInterrupt);
96 /* Read command operation*/
97 enet_hal_set_mii_command(instance, phyAddr, phyReg, kEnetReadValidFrame, 0);
99 /* Poll for MII complete*/
100 for (counter = 0; counter < kEnetMaxTimeout; counter++)
102 if (enet_hal_get_interrupt_status(instance, kEnetMiiInterrupt))
109 /* Check for timeout*/
110 if (counter == kEnetMaxTimeout)
112 return kStatus_ENET_TimeOut;
115 /* Get data from mii register*/
116 *dataPtr = enet_hal_get_mii_data(instance);
118 /* Clear MII interrupt event*/
119 enet_hal_clear_interrupt(instance, kEnetMiiInterrupt);
121 return kStatus_ENET_Success;
124 /*FUNCTION****************************************************************
126 * Function Name: enet_mii_write
127 * Return Value: The execution status.
128 * Description: Write function.
129 * This interface write data over the (R)MII bus to the specified PHY register.
130 * This function is called by all PHY interfaces.
131 *END*********************************************************************/
132 uint32_t enet_mii_write(uint32_t instance, uint32_t phyAddr, uint32_t phyReg, uint32_t data)
136 /* Check if the mii is enabled*/
137 if (!enet_hal_is_mii_enabled(instance))
139 return kStatus_ENET_Miiuninitialized;
142 /* Clear the MII interrupt event*/
143 enet_hal_clear_interrupt(instance, kEnetMiiInterrupt);
145 /* Read command operation*/
146 enet_hal_set_mii_command(instance, phyAddr, phyReg, kEnetWriteValidFrame, data);
148 /* Poll for MII complete*/
149 for (counter = 0; counter < kEnetMaxTimeout; counter++)
151 if (enet_hal_get_interrupt_status(instance, kEnetMiiInterrupt))
158 /* Check for timeout*/
159 if (counter == kEnetMaxTimeout)
161 return kStatus_ENET_TimeOut;
164 /* Clear MII intrrupt event*/
165 enet_hal_clear_interrupt(instance, kEnetMiiInterrupt);
167 return kStatus_ENET_Success;
169 /*FUNCTION****************************************************************
171 * Function Name: enet_mac_mii_init
172 * Return Value: The execution status.
173 * Description:Initialize the ENET Mac mii(mdc/mdio)interface.
174 *END*********************************************************************/
175 uint32_t enet_mac_mii_init(enet_dev_if_t * enetIfPtr)
179 /* Check the input parameters*/
180 if (enetIfPtr == NULL)
182 return kStatus_ENET_InvalidInput;
185 /* Configure mii speed*/
186 CLOCK_SYS_GetFreq(kSystemClock, &frequency);
187 enet_hal_config_mii(enetIfPtr->deviceNumber, (frequency/(2 * enetIfPtr->macCfgPtr->miiClock) + 1),
188 kEnetMdioHoldOneClkCycle, false);
190 return kStatus_ENET_Success;
193 /*FUNCTION****************************************************************
195 * Function Name: enet_mac_rxbd_init
196 * Return Value: The execution status.
197 * Description:Initialize the ENET receive buffer descriptors.
198 * Note: If you do receive on receive interrupt handler the receive
199 * data buffer number can be the same as the receive descriptor numbers.
200 * But if you are polling receive frames please make sure the receive data
201 * buffers are more than buffer descriptors to guarantee a good performance.
202 *END*********************************************************************/
203 uint32_t enet_mac_rxbd_init(enet_dev_if_t * enetIfPtr, enet_rxbd_config_t *rxbdCfg)
205 /* Check the input parameters*/
206 if ((!enetIfPtr) || (!rxbdCfg))
208 return kStatus_ENET_InvalidInput;
211 enetIfPtr->macContextPtr->bufferdescSize = enet_hal_get_bd_size();
213 /* Initialize the bd status*/
214 enetIfPtr->macContextPtr->isRxFull = false;
216 /* Initialize receive bd base address and current address*/
217 enetIfPtr->macContextPtr->rxBdBasePtr = rxbdCfg->rxBdPtrAlign;
218 enetIfPtr->macContextPtr->rxBdCurPtr = enetIfPtr->macContextPtr->rxBdBasePtr;
219 enetIfPtr->macContextPtr->rxBdDirtyPtr = enetIfPtr->macContextPtr->rxBdBasePtr;
220 enet_hal_set_rxbd_address(enetIfPtr->deviceNumber, (uint32_t)(enetIfPtr->macContextPtr->rxBdBasePtr));
222 return kStatus_ENET_Success;
225 /*FUNCTION****************************************************************
227 * Function Name: enet_mac_txbd_init
228 * Return Value: The execution status.
229 * Description:Initialize the ENET transmit buffer descriptors.
230 * This function prepare all of the transmit buffer descriptors.
231 *END*********************************************************************/
232 uint32_t enet_mac_txbd_init(enet_dev_if_t * enetIfPtr, enet_txbd_config_t *txbdCfg)
234 /* Check the input parameters*/
235 if ((!enetIfPtr) || (!txbdCfg))
237 return kStatus_ENET_InvalidInput;
240 /* Initialize the bd status*/
241 enetIfPtr->macContextPtr->isTxFull = false;
243 /* Initialize transmit bd base address and current address*/
244 enetIfPtr->macContextPtr->txBdBasePtr = txbdCfg->txBdPtrAlign;
245 enetIfPtr->macContextPtr->txBdCurPtr = enetIfPtr->macContextPtr->txBdBasePtr;
246 enetIfPtr->macContextPtr->txBdDirtyPtr = enetIfPtr->macContextPtr->txBdBasePtr;
247 enet_hal_set_txbd_address(enetIfPtr->deviceNumber, (uint32_t)(enetIfPtr->macContextPtr->txBdBasePtr));
248 return kStatus_ENET_Success;
251 /*FUNCTION****************************************************************
253 * Function Name: enet_mac_configure_fifo_accel
254 * Return Value: The execution status.
255 * Description: Configure the ENET FIFO and Accelerator.
256 *END*********************************************************************/
257 uint32_t enet_mac_configure_fifo_accel(enet_dev_if_t * enetIfPtr)
259 enet_config_rx_fifo_t rxFifo;
260 enet_config_tx_fifo_t txFifo;
262 /* Check the input parameters*/
265 return kStatus_ENET_InvalidInput;
268 /* Initialize values that will not be initialized later on */
271 txFifo.isStoreForwardEnabled = 0;
272 txFifo.txFifoWrite = 0;
275 /* Configure tx/rx accelerator*/
276 if (enetIfPtr->macCfgPtr->isRxAccelEnabled)
278 enet_hal_config_rx_accelerator(enetIfPtr->deviceNumber,
279 (enet_config_rx_accelerator_t *)&(enetIfPtr->macCfgPtr->rxAcceler));
280 if ((enetIfPtr->macCfgPtr->rxAcceler.isIpcheckEnabled) || (enetIfPtr->macCfgPtr->rxAcceler.isProtocolCheckEnabled))
285 if (enetIfPtr->macCfgPtr->isTxAccelEnabled)
287 enet_hal_config_tx_accelerator(enetIfPtr->deviceNumber,
288 (enet_config_tx_accelerator_t *)&(enetIfPtr->macCfgPtr->txAcceler));
289 if ((enetIfPtr->macCfgPtr->txAcceler.isIpCheckEnabled) || (enetIfPtr->macCfgPtr->txAcceler.isProtocolCheckEnabled))
291 txFifo.isStoreForwardEnabled = 1;
294 if (enetIfPtr->macCfgPtr->isStoreAndFwEnabled)
297 txFifo.isStoreForwardEnabled = 1;
301 /* Set TFWR value if STRFWD is not being used */
302 if (txFifo.isStoreForwardEnabled == 1)
303 txFifo.txFifoWrite = 0;
305 /* TFWR value is a trade-off between transmit latency and risk of transmit FIFO underrun due to contention for the system bus
306 TFWR = 15 means transmission will begin once 960 bytes has been written to the Tx FIFO (for frames larger than 960 bytes)
307 See Section 45.4.18 - Transmit FIFO Watermark Register of the K64F Reference Manual for details */
308 txFifo.txFifoWrite = 15;
310 /* Configure tx/rx FIFO with default value*/
311 rxFifo.rxAlmostEmpty = 4;
312 rxFifo.rxAlmostFull = 4;
313 txFifo.txAlmostEmpty = 4;
314 txFifo.txAlmostFull = 8;
315 enet_hal_config_rx_fifo(enetIfPtr->deviceNumber, &rxFifo);
316 enet_hal_config_tx_fifo(enetIfPtr->deviceNumber, &txFifo);
318 return kStatus_ENET_Success;
321 /*FUNCTION****************************************************************
323 * Function Name: enet_mac_configure_controller
324 * Return Value: The execution status.
325 * Description: Configure the ENET controller with the basic configuration.
326 *END*********************************************************************/
327 uint32_t enet_mac_configure_controller(enet_dev_if_t * enetIfPtr)
331 /* Check the input parameters*/
332 if (enetIfPtr == NULL)
334 return kStatus_ENET_InvalidInput;
337 macCtlCfg = enetIfPtr->macCfgPtr->macCtlConfigure;
338 /* Configure rmii/mii interface*/
339 enet_hal_config_rmii(enetIfPtr->deviceNumber, enetIfPtr->macCfgPtr->rmiiCfgMode,
340 enetIfPtr->macCfgPtr->speed, enetIfPtr->macCfgPtr->duplex, false,
341 (macCtlCfg & kEnetRxMiiLoopback));
342 /* Configure receive buffer size*/
343 if (enetIfPtr->macCfgPtr->isVlanEnabled)
345 enetIfPtr->maxFrameSize = kEnetMaxFrameVlanSize;
346 enet_hal_set_rx_max_size(enetIfPtr->deviceNumber,
347 enetIfPtr->macContextPtr->rxBufferSizeAligned, kEnetMaxFrameVlanSize);
351 enetIfPtr->maxFrameSize = kEnetMaxFrameSize;
352 enet_hal_set_rx_max_size(enetIfPtr->deviceNumber,
353 enetIfPtr->macContextPtr->rxBufferSizeAligned, kEnetMaxFrameSize);
356 /* Set receive controller promiscuous */
357 enet_hal_config_promiscuous(enetIfPtr->deviceNumber, macCtlCfg & kEnetRxPromiscuousEnable);
358 /* Set receive flow control*/
359 enet_hal_enable_flowcontrol(enetIfPtr->deviceNumber, (macCtlCfg & kEnetRxFlowControlEnable));
360 /* Set received PAUSE frames are forwarded/terminated*/
361 enet_hal_enable_pauseforward(enetIfPtr->deviceNumber, (macCtlCfg & kEnetRxPauseFwdEnable));
362 /* Set receive broadcast frame reject*/
363 enet_hal_enable_broadcastreject(enetIfPtr->deviceNumber, (macCtlCfg & kEnetRxBcRejectEnable));
364 /* Set padding is removed from the received frame*/
365 enet_hal_enable_padremove(enetIfPtr->deviceNumber, (macCtlCfg & kEnetRxPadRemoveEnable));
366 /* Set the crc of the received frame is stripped from the frame*/
367 enet_hal_enable_rxcrcforward(enetIfPtr->deviceNumber, (macCtlCfg & kEnetRxCrcFwdEnable));
368 /* Set receive payload length check*/
369 enet_hal_enable_payloadcheck(enetIfPtr->deviceNumber, (macCtlCfg & kEnetPayloadlenCheckEnable));
370 /* Set control sleep mode*/
371 enet_hal_enable_sleep(enetIfPtr->deviceNumber, (macCtlCfg & kEnetSleepModeEnable));
372 return kStatus_ENET_Success;
375 /*FUNCTION****************************************************************
377 * Function Name: enet_mac_init
378 * Return Value: The execution status.
379 * Description:Initialize the ENET device with the basic configuration
380 * When ENET is used, this function need to be called by the NET initialize
382 *END*********************************************************************/
383 uint32_t enet_mac_init(enet_dev_if_t * enetIfPtr, enet_rxbd_config_t *rxbdCfg,
384 enet_txbd_config_t *txbdCfg)
386 uint32_t timeOut = 0;
387 uint32_t devNumber, result = 0;
389 /* Check the input parameters*/
390 if (enetIfPtr == NULL)
392 return kStatus_ENET_InvalidInput;
395 /* Get device number and check the parameter*/
396 devNumber = enetIfPtr->deviceNumber;
398 /* Store the global ENET structure for ISR input parameters */
399 enetIfHandle = enetIfPtr;
401 /* Turn on ENET module clock gate */
402 CLOCK_SYS_EnableEnetClock(0U);
405 enet_hal_reset_ethernet(devNumber);
406 while ((!enet_hal_is_reset_completed(devNumber)) && (timeOut < kEnetMaxTimeout))
412 /* Check out if timeout*/
413 if (timeOut == kEnetMaxTimeout)
415 return kStatus_ENET_TimeOut;
418 /* Disable all ENET mac interrupt and Clear all interrupt events*/
419 enet_hal_config_interrupt(devNumber, kEnetAllInterrupt, false);
420 enet_hal_clear_interrupt(devNumber, kEnetAllInterrupt);
422 /* Program this station's physical address*/
423 enet_hal_set_mac_address(devNumber, enetIfPtr->macCfgPtr->macAddr);
425 /* Clear group and individual hash register*/
426 enet_hal_set_group_hashtable(devNumber, 0, kEnetSpecialAddressInit);
427 enet_hal_set_individual_hashtable(devNumber, 0, kEnetSpecialAddressInit);
429 /* Configure mac controller*/
430 result = enet_mac_configure_controller(enetIfPtr);
431 if(result != kStatus_ENET_Success)
435 /* Clear mib zero counters*/
436 enet_hal_clear_mib(devNumber, true);
438 /* Initialize FIFO and accelerator*/
439 result = enet_mac_configure_fifo_accel(enetIfPtr);
440 if(result != kStatus_ENET_Success)
444 /* Initialize receive buffer descriptors*/
445 result = enet_mac_rxbd_init(enetIfPtr, rxbdCfg);
446 if(result != kStatus_ENET_Success)
450 /* Initialize transmit buffer descriptors*/
451 result = enet_mac_txbd_init(enetIfPtr, txbdCfg);
452 if(result != kStatus_ENET_Success)
456 /* Initialize rmii/mii interface*/
457 result = enet_mac_mii_init(enetIfPtr);
458 if (result != kStatus_ENET_Success)
463 return kStatus_ENET_Success;
466 /*******************************************************************************
468 ******************************************************************************/