1 /*
2  * Copyright 2020-2021 NXP
3  * All rights reserved.
4  *
5  * SPDX-License-Identifier: BSD-3-Clause
6  */
7 #ifndef _FSL_ENET_QOS_H_
8 #define _FSL_ENET_QOS_H_
9 
10 #include "fsl_common.h"
11 #include "fsl_cache.h"
12 #if defined(FSL_FEATURE_MEMORY_HAS_ADDRESS_OFFSET) && FSL_FEATURE_MEMORY_HAS_ADDRESS_OFFSET
13 #include "fsl_memory.h"
14 #endif
15 /*!
16  * @addtogroup enet_qos_qos
17  * @{
18  */
19 
20 /*******************************************************************************
21  * Definitions
22  ******************************************************************************/
23 
24 /*! @name Driver version */
25 /*@{*/
26 /*! @brief Defines the driver version. */
27 #define FSL_ENET_QOS_DRIVER_VERSION (MAKE_VERSION(2, 4, 0))
28 /*@}*/
29 
30 /*! @name Control and status region bit masks of the receive buffer descriptor. */
31 /*@{*/
32 /*! @brief Defines for read format. */
33 #define ENET_QOS_RXDESCRIP_RD_BUFF1VALID_MASK (1UL << 24U) /*!< Buffer1 address valid. */
34 #define ENET_QOS_RXDESCRIP_RD_BUFF2VALID_MASK (1UL << 25U) /*!< Buffer2 address valid. */
35 #define ENET_QOS_RXDESCRIP_RD_IOC_MASK        (1UL << 30U) /*!< Interrupt enable on complete. */
36 #define ENET_QOS_RXDESCRIP_RD_OWN_MASK        (1UL << 31U) /*!< Own bit. */
37 
38 /*! @brief Defines for write back format. */
39 #define ENET_QOS_RXDESCRIP_WR_ERR_MASK        ((1UL << 3U) | (1UL << 7U))
40 #define ENET_QOS_RXDESCRIP_WR_PYLOAD_MASK     (0x7UL)
41 #define ENET_QOS_RXDESCRIP_WR_PTPMSGTYPE_MASK (0xF00UL)
42 #define ENET_QOS_RXDESCRIP_WR_PTPTYPE_MASK    (1UL << 12U)
43 #define ENET_QOS_RXDESCRIP_WR_PTPVERSION_MASK (1UL << 13U)
44 #define ENET_QOS_RXDESCRIP_WR_PTPTSA_MASK     (1UL << 14U)
45 #define ENET_QOS_RXDESCRIP_WR_PACKETLEN_MASK  (0x7FFFUL)
46 #define ENET_QOS_RXDESCRIP_WR_ERRSUM_MASK     (1UL << 15U)
47 #define ENET_QOS_RXDESCRIP_WR_TYPE_MASK       (0x30000UL)
48 #define ENET_QOS_RXDESCRIP_WR_DE_MASK         (1UL << 19U)
49 #define ENET_QOS_RXDESCRIP_WR_RE_MASK         (1UL << 20U)
50 #define ENET_QOS_RXDESCRIP_WR_OE_MASK         (1UL << 21U)
51 #define ENET_QOS_RXDESCRIP_WR_RWT_MASK        (1UL << 22U)
52 #define ENET_QOS_RXDESCRIP_WR_GP_MASK         (1UL << 22U)
53 #define ENET_QOS_RXDESCRIP_WR_CRC_MASK        (1UL << 23U)
54 #define ENET_QOS_RXDESCRIP_WR_RS0V_MASK       (1UL << 25U)
55 #define ENET_QOS_RXDESCRIP_WR_RS1V_MASK       (1UL << 26U)
56 #define ENET_QOS_RXDESCRIP_WR_RS2V_MASK       (1UL << 27U)
57 #define ENET_QOS_RXDESCRIP_WR_LD_MASK         (1UL << 28U)
58 #define ENET_QOS_RXDESCRIP_WR_FD_MASK         (1UL << 29U)
59 #define ENET_QOS_RXDESCRIP_WR_CTXT_MASK       (1UL << 30U)
60 #define ENET_QOS_RXDESCRIP_WR_OWN_MASK        (1UL << 31U)
61 
62 #define ENET_QOS_RXDESCRIP_WR_SA_FAILURE_MASK (1UL << 16U)
63 #define ENET_QOS_RXDESCRIP_WR_DA_FAILURE_MASK (1UL << 17U)
64 /*@}*/
65 
66 /*! @name Control and status bit masks of the transmit buffer descriptor. */
67 /*@{*/
68 /*! @brief Defines for read format. */
69 #define ENET_QOS_TXDESCRIP_RD_BL1_MASK  (0x3fffUL)
70 #define ENET_QOS_TXDESCRIP_RD_BL2_MASK  (ENET_QOS_TXDESCRIP_RD_BL1_MASK << 16U)
71 #define ENET_QOS_TXDESCRIP_RD_BL1(n)    ((uint32_t)(n)&ENET_QOS_TXDESCRIP_RD_BL1_MASK)
72 #define ENET_QOS_TXDESCRIP_RD_BL2(n)    (((uint32_t)(n)&ENET_QOS_TXDESCRIP_RD_BL1_MASK) << 16)
73 #define ENET_QOS_TXDESCRIP_RD_TTSE_MASK (1UL << 30UL)
74 #define ENET_QOS_TXDESCRIP_RD_IOC_MASK  (1UL << 31UL)
75 
76 #define ENET_QOS_TXDESCRIP_RD_FL_MASK   (0x7FFFUL)
77 #define ENET_QOS_TXDESCRIP_RD_FL(n)     ((uint32_t)(n)&ENET_QOS_TXDESCRIP_RD_FL_MASK)
78 #define ENET_QOS_TXDESCRIP_RD_CIC(n)    (((uint32_t)(n)&0x3U) << 16U)
79 #define ENET_QOS_TXDESCRIP_RD_TSE_MASK  (1UL << 18U)
80 #define ENET_QOS_TXDESCRIP_RD_SLOT(n)   (((uint32_t)(n)&0x0fU) << 19U)
81 #define ENET_QOS_TXDESCRIP_RD_SAIC(n)   (((uint32_t)(n)&0x07U) << 23U)
82 #define ENET_QOS_TXDESCRIP_RD_CPC(n)    (((uint32_t)(n)&0x03U) << 26U)
83 #define ENET_QOS_TXDESCRIP_RD_LDFD(n)   (((uint32_t)(n)&0x03U) << 28U)
84 #define ENET_QOS_TXDESCRIP_RD_LD_MASK   (1UL << 28U)
85 #define ENET_QOS_TXDESCRIP_RD_FD_MASK   (1UL << 29U)
86 #define ENET_QOS_TXDESCRIP_RD_CTXT_MASK (1UL << 30U)
87 #define ENET_QOS_TXDESCRIP_RD_OWN_MASK  (1UL << 31U)
88 
89 /*! @brief Defines for write back format. */
90 #define ENET_QOS_TXDESCRIP_WB_TTSS_MASK (1UL << 17U)
91 /*@}*/
92 
93 /*! @name Bit mask for interrupt enable type. */
94 /*@{*/
95 #define ENET_QOS_ABNORM_INT_MASK                                                                                \
96     (ENET_QOS_DMA_CHX_INT_EN_TXSE_MASK | ENET_QOS_DMA_CHX_INT_EN_RBUE_MASK | ENET_QOS_DMA_CHX_INT_EN_RSE_MASK | \
97      ENET_QOS_DMA_CHX_INT_EN_RWTE_MASK | ENET_QOS_DMA_CHX_INT_EN_FBEE_MASK | ENET_QOS_DMA_CHX_INT_EN_ETIE_MASK)
98 #define ENET_QOS_NORM_INT_MASK                                                                                 \
99     (ENET_QOS_DMA_CHX_INT_EN_TIE_MASK | ENET_QOS_DMA_CHX_INT_EN_TBUE_MASK | ENET_QOS_DMA_CHX_INT_EN_RIE_MASK | \
100      ENET_QOS_DMA_CHX_INT_EN_ERIE_MASK)
101 /*@}*/
102 
103 /*! @name Defines some Ethernet parameters. */
104 /*@{*/
105 #ifndef ENET_QOS_RING_NUM_MAX
106 #define ENET_QOS_RING_NUM_MAX (5U) /*!< The Maximum number of tx/rx descriptor rings. */
107 #endif
108 #define ENET_QOS_FRAME_MAX_FRAMELEN (1518U) /*!< Default maximum Ethernet frame size. */
109 #define ENET_QOS_FCS_LEN            (4U)    /*!< Ethernet FCS length. */
110 #define ENET_QOS_ADDR_ALIGNMENT     (0x3U)  /*!< Recommended Ethernet buffer alignment. */
111 #define ENET_QOS_BUFF_ALIGNMENT     (8U)    /*!< Receive buffer alignment shall be 4bytes-aligned. */
112 #define ENET_QOS_MTL_RXFIFOSIZE     (8192U) /*!< The rx fifo size. */
113 #define ENET_QOS_MTL_TXFIFOSIZE     (8192U) /*!< The tx fifo size. */
114 #define ENET_QOS_MACINT_ENUM_OFFSET (16U)   /*!< The offest for mac interrupt in enum type. */
115 #define ENET_QOS_RXP_ENTRY_COUNT    (256U)  /*!< RXP table entry count, implied by FRPES in MAC_HW_FEATURE3 */
116 #define ENET_QOS_RXP_BUFFER_SIZE    (256U)  /*!< RXP Buffer size, implied by FRPBS in MAC_HW_FEATURE3 */
117 #define ENET_QOS_EST_WID            (24U)   /*!< Width of the time interval in Gate Control List */
118 #define ENET_QOS_EST_DEP            (512U)  /*!< Maxmimum depth of Gate Control List */
119 /*@}*/
120 
121 /*! @brief Defines the status return codes for transaction. */
122 enum
123 {
124     kStatus_ENET_QOS_InitMemoryFail =
125         MAKE_STATUS(kStatusGroup_ENET_QOS, 0U), /*!< Init fails since buffer memory is not enough. */
126     kStatus_ENET_QOS_RxFrameError =
127         MAKE_STATUS(kStatusGroup_ENET_QOS, 1U), /*!< A frame received but data error happen. */
128     kStatus_ENET_QOS_RxFrameFail  = MAKE_STATUS(kStatusGroup_ENET_QOS, 2U), /*!< Failed to receive a frame. */
129     kStatus_ENET_QOS_RxFrameEmpty = MAKE_STATUS(kStatusGroup_ENET_QOS, 3U), /*!< No frame arrive. */
130     kStatus_ENET_QOS_RxFrameDrop =
131         MAKE_STATUS(kStatusGroup_ENET_QOS, 4U), /*!< Rx frame is dropped since no buffer memory. */
132     kStatus_ENET_QOS_TxFrameBusy =
133         MAKE_STATUS(kStatusGroup_ENET_QOS, 5U), /*!< Transmit descriptors are under process. */
134     kStatus_ENET_QOS_TxFrameFail    = MAKE_STATUS(kStatusGroup_ENET_QOS, 6U), /*!< Transmit frame fail. */
135     kStatus_ENET_QOS_TxFrameOverLen = MAKE_STATUS(kStatusGroup_ENET_QOS, 7U), /*!< Transmit oversize. */
136     kStatus_ENET_QOS_Est_SwListBusy =
137         MAKE_STATUS(kStatusGroup_ENET_QOS, 8U), /*!< SW Gcl List not yet processed by HW. */
138     kStatus_ENET_QOS_Est_SwListWriteAbort = MAKE_STATUS(kStatusGroup_ENET_QOS, 9U), /*!< SW Gcl List write aborted .*/
139     kStatus_ENET_QOS_Est_InvalidParameter =
140         MAKE_STATUS(kStatusGroup_ENET_QOS, 10U),                             /*!< Invalid parameter in Gcl List .*/
141     kStatus_ENET_QOS_Est_BtrError = MAKE_STATUS(kStatusGroup_ENET_QOS, 11U), /*!< Base Time Error when loading list.*/
142     kStatus_ENET_QOS_TrgtBusy     = MAKE_STATUS(kStatusGroup_ENET_QOS, 12U), /*!< Target time register busy.*/
143     kStatus_ENET_QOS_Timeout      = MAKE_STATUS(kStatusGroup_ENET_QOS, 13U), /*!< Target time register busy.*/
144     kStatus_ENET_QOS_PpsBusy      = MAKE_STATUS(kStatusGroup_ENET_QOS, 14U)  /*!< Pps command busy.*/
145 };
146 
147 /*! @brief Defines the MII/RGMII mode for data interface between the MAC and the PHY. */
148 typedef enum _enet_qos_mii_mode
149 {
150     kENET_QOS_MiiMode   = 0U, /*!< MII mode for data interface. */
151     kENET_QOS_RgmiiMode = 1U, /*!< RGMII mode for data interface. */
152     kENET_QOS_RmiiMode  = 4U  /*!< RMII mode for data interface. */
153 } enet_qos_mii_mode_t;
154 
155 /*! @brief Defines the 10/100/1000 Mbps speed for the MII data interface. */
156 typedef enum _enet_qos_mii_speed
157 {
158     kENET_QOS_MiiSpeed10M =
159         ENET_QOS_MAC_CONFIGURATION_PS(1U) | ENET_QOS_MAC_CONFIGURATION_FES(0U), /*!< Speed 10 Mbps. */
160     kENET_QOS_MiiSpeed100M =
161         ENET_QOS_MAC_CONFIGURATION_PS(1U) | ENET_QOS_MAC_CONFIGURATION_FES(1U), /*!< Speed 100 Mbps. */
162     kENET_QOS_MiiSpeed1000M =
163         ENET_QOS_MAC_CONFIGURATION_PS(0U) | ENET_QOS_MAC_CONFIGURATION_FES(0U), /*!< Speed 1000 Mbps. */
164     kENET_QOS_MiiSpeed2500M =
165         ENET_QOS_MAC_CONFIGURATION_PS(0U) | ENET_QOS_MAC_CONFIGURATION_FES(1U) /*!< Speed 2500 Mbps. */
166 } enet_qos_mii_speed_t;
167 
168 /*! @brief Defines the half or full duplex for the MII data interface. */
169 typedef enum _enet_qos_mii_duplex
170 {
171     kENET_QOS_MiiHalfDuplex = 0U, /*!< Half duplex mode. */
172     kENET_QOS_MiiFullDuplex       /*!< Full duplex mode. */
173 } enet_qos_mii_duplex_t;
174 
175 /*! @brief Define the MII opcode for normal MDIO_CLAUSES_22 Frame. */
176 typedef enum _enet_qos_mii_normal_opcode
177 {
178     kENET_QOS_MiiWriteFrame =
179         ENET_QOS_MAC_MDIO_ADDRESS_GOC_1(0U) |
180         ENET_QOS_MAC_MDIO_ADDRESS_GOC_0(1U), /*!< Write frame operation for a valid MII management frame. */
181     kENET_QOS_MiiReadFrame =
182         ENET_QOS_MAC_MDIO_ADDRESS_GOC_1(1U) |
183         ENET_QOS_MAC_MDIO_ADDRESS_GOC_0(1U) /*!< Read frame operation for a valid MII management frame. */
184 } enet_qos_mii_normal_opcode;
185 
186 /*! @brief Define the DMA maximum transmit burst length. */
187 typedef enum _enet_qos_dma_burstlen
188 {
189     kENET_QOS_BurstLen1   = 0x00001U, /*!< DMA burst length 1. */
190     kENET_QOS_BurstLen2   = 0x00002U, /*!< DMA burst length 2. */
191     kENET_QOS_BurstLen4   = 0x00004U, /*!< DMA burst length 4. */
192     kENET_QOS_BurstLen8   = 0x00008U, /*!< DMA burst length 8. */
193     kENET_QOS_BurstLen16  = 0x00010U, /*!< DMA burst length 16. */
194     kENET_QOS_BurstLen32  = 0x00020U, /*!< DMA burst length 32. */
195     kENET_QOS_BurstLen64  = 0x10008U, /*!< DMA burst length 64. eight times enabled. */
196     kENET_QOS_BurstLen128 = 0x10010U, /*!< DMA burst length 128. eight times enabled. */
197     kENET_QOS_BurstLen256 = 0x10020U, /*!< DMA burst length 256. eight times enabled. */
198 } enet_qos_dma_burstlen;
199 
200 /*! @brief Define the flag for the descriptor. */
201 typedef enum _enet_qos_desc_flag
202 {
203     kENET_QOS_MiddleFlag = 0, /*!< It's a middle descriptor of the frame. */
204     kENET_QOS_LastFlagOnly,   /*!< It's the last descriptor of the frame. */
205     kENET_QOS_FirstFlagOnly,  /*!< It's the first descriptor of the frame. */
206     kENET_QOS_FirstLastFlag   /*!< It's the first and last descriptor of the frame. */
207 } enet_qos_desc_flag;
208 
209 /*! @brief Define the system time adjust operation control. */
210 typedef enum _enet_qos_systime_op
211 {
212     kENET_QOS_SystimeAdd      = 0U, /*!< System time add to. */
213     kENET_QOS_SystimeSubtract = 1U  /*!< System time subtract. */
214 } enet_qos_systime_op;
215 
216 /*! @brief Define the system time rollover control. */
217 typedef enum _enet_qos_ts_rollover_type
218 {
219     kENET_QOS_BinaryRollover  = 0, /*!< System time binary rollover.*/
220     kENET_QOS_DigitalRollover = 1  /*!< System time digital rollover.*/
221 } enet_qos_ts_rollover_type;
222 
223 /*! @brief Defines some special configuration for ENET.
224  *
225  * These control flags are provided for special user requirements.
226  * Normally, these is no need to set this control flags for ENET initialization.
227  * But if you have some special requirements, set the flags to specialControl
228  * in the enet_qos_config_t.
229  * @note "kENET_QOS_StoreAndForward" is recommended to be set.
230  */
231 typedef enum _enet_qos_special_config
232 {
233 
234     /***********************DMA CONFGI**********************************************/
235     kENET_QOS_DescDoubleBuffer = 0x0001U, /*!< The double buffer is used in the tx/rx descriptor. */
236     /**************************MTL************************************/
237     kENET_QOS_StoreAndForward = 0x0002U, /*!< The rx/tx store and forward enable. */
238     /***********************MAC****************************************/
239     kENET_QOS_PromiscuousEnable   = 0x0004U, /*!< The promiscuous enabled. */
240     kENET_QOS_FlowControlEnable   = 0x0008U, /*!< The flow control enabled. */
241     kENET_QOS_BroadCastRxDisable  = 0x0010U, /*!< The broadcast disabled. */
242     kENET_QOS_MulticastAllEnable  = 0x0020U, /*!< All multicast are passed. */
243     kENET_QOS_8023AS2KPacket      = 0x0040U, /*!< 8023as support for 2K packets. */
244     kENET_QOS_HashMulticastEnable = 0x0080U  /*!< The multicast packets are filtered through hash table. */
245 } enet_qos_special_config_t;
246 
247 /*! @brief List of DMA interrupts supported by the ENET interrupt. This
248  * enumeration uses one-bot encoding to allow a logical OR of multiple
249  * members.
250  */
251 typedef enum _enet_qos_dma_interrupt_enable
252 {
253     kENET_QOS_DmaTx                = ENET_QOS_DMA_CHX_INT_EN_TIE_MASK,  /*!< Tx interrupt. */
254     kENET_QOS_DmaTxStop            = ENET_QOS_DMA_CHX_INT_EN_TXSE_MASK, /*!< Tx stop interrupt. */
255     kENET_QOS_DmaTxBuffUnavail     = ENET_QOS_DMA_CHX_INT_EN_TBUE_MASK, /*!< Tx buffer unavailable. */
256     kENET_QOS_DmaRx                = ENET_QOS_DMA_CHX_INT_EN_RIE_MASK,  /*!< Rx interrupt. */
257     kENET_QOS_DmaRxBuffUnavail     = ENET_QOS_DMA_CHX_INT_EN_RBUE_MASK, /*!< Rx buffer unavailable. */
258     kENET_QOS_DmaRxStop            = ENET_QOS_DMA_CHX_INT_EN_RSE_MASK,  /*!< Rx stop. */
259     kENET_QOS_DmaRxWatchdogTimeout = ENET_QOS_DMA_CHX_INT_EN_RWTE_MASK, /*!< Rx watchdog timeout. */
260     kENET_QOS_DmaEarlyTx           = ENET_QOS_DMA_CHX_INT_EN_ETIE_MASK, /*!< Early transmit. */
261     kENET_QOS_DmaEarlyRx           = ENET_QOS_DMA_CHX_INT_EN_ERIE_MASK, /*!< Early receive. */
262     kENET_QOS_DmaBusErr            = ENET_QOS_DMA_CHX_INT_EN_FBEE_MASK, /*!< Fatal bus error. */
263 } enet_qos_dma_interrupt_enable_t;
264 
265 /*! @brief List of mac interrupts supported by the ENET interrupt. This
266  * enumeration uses one-bot encoding to allow a logical OR of multiple
267  * members.
268  */
269 typedef enum _enet_qos_mac_interrupt_enable
270 {
271     kENET_QOS_MacPmt       = (ENET_QOS_MAC_INTERRUPT_ENABLE_PMTIE_MASK << ENET_QOS_MACINT_ENUM_OFFSET),
272     kENET_QOS_MacTimestamp = (ENET_QOS_MAC_INTERRUPT_ENABLE_TSIE_MASK << ENET_QOS_MACINT_ENUM_OFFSET),
273 } enet_qos_mac_interrupt_enable_t;
274 
275 /*! @brief Defines the common interrupt event for callback use. */
276 typedef enum _enet_qos_event
277 {
278     kENET_QOS_RxIntEvent,        /*!< Receive interrupt event. */
279     kENET_QOS_TxIntEvent,        /*!< Transmit interrupt event. */
280     kENET_QOS_WakeUpIntEvent,    /*!< Wake up interrupt event. */
281     kENET_QOS_TimeStampIntEvent, /*!< Time stamp interrupt event. */
282 } enet_qos_event_t;
283 
284 /*! @brief Define the MTL mode for multiple queues/rings. */
285 typedef enum _enet_qos_queue_mode
286 {
287     kENET_QOS_AVB_Mode = 1U, /*!< Enable queue in AVB mode. */
288     kENET_QOS_DCB_Mode = 2U, /*!< Enable queue in DCB mode. */
289 } enet_qos_queue_mode_t;
290 
291 /*! @brief Define the MTL tx scheduling algorithm for multiple queues/rings. */
292 typedef enum _enet_qos_mtl_multiqueue_txsche
293 {
294     kENET_QOS_txWeightRR       = 0U, /*!< Tx weight round-robin. */
295     kENET_QOS_txWeightFQ       = 1U, /*!< Tx weight fair queuing. */
296     kENET_QOS_txDefictWeightRR = 2U, /*!< Tx deficit weighted round-robin. */
297     kENET_QOS_txStrPrio        = 3U, /*!< Tx strict priority. */
298 } enet_qos_mtl_multiqueue_txsche;
299 
300 /*! @brief Define the MTL rx scheduling algorithm for multiple queues/rings. */
301 typedef enum _enet_qos_mtl_multiqueue_rxsche
302 {
303     kENET_QOS_rxStrPrio = 0U,  /*!< Rx strict priority, Queue 0 has the lowest priority. */
304     kENET_QOS_rxWeightStrPrio, /*!< Weighted Strict Priority. */
305 } enet_qos_mtl_multiqueue_rxsche;
306 
307 /*! @brief Define the MTL rx queue and DMA channel mapping. */
308 typedef enum _enet_qos_mtl_rxqueuemap
309 {
310     kENET_QOS_StaticDirctMap = 0x100U, /*!< The received fame in rx Qn(n = 0,1) directly map to dma channel n. */
311     kENET_QOS_DynamicMap =
312         0x1010U, /*!< The received frame in rx Qn(n = 0,1) map to the dma channel m(m = 0,1) related with the same Mac.
313                   */
314 } enet_qos_mtl_rxqueuemap_t;
315 
316 /*! @brief Defines the package type for receive queue routing. */
317 typedef enum _enet_qos_rx_queue_route
318 {
319     kENET_QOS_PacketNoQ    = 0x0,        /* Not specific queue */
320     kENET_QOS_PacketAVCPQ  = (1U << 0U), /* AV Untagged Control Packets Queue */
321     kENET_QOS_PacketPTPQ   = (1U << 1U), /* PTP Packets Queue */
322     kENET_QOS_PacketDCBCPQ = (1U << 2U), /* DCB Control Packets Queue */
323     kENET_QOS_PacketUPQ    = (1U << 3U), /* Untagged Packets Queue */
324     kENET_QOS_PacketMCBCQ  = (1U << 4U), /* Multicast & Broadcast Packets Queue */
325 } enet_qos_rx_queue_route_t;
326 
327 /*! @brief Defines the ENET PTP message related constant. */
328 typedef enum _enet_qos_ptp_event_type
329 {
330     kENET_QOS_PtpEventMsgType = 3U,   /*!< PTP event message type. */
331     kENET_QOS_PtpSrcPortIdLen = 10U,  /*!< PTP message sequence id length. */
332     kENET_QOS_PtpEventPort    = 319U, /*!< PTP event port number. */
333     kENET_QOS_PtpGnrlPort     = 320U  /*!< PTP general port number. */
334 } enet_qos_ptp_event_type_t;
335 
336 /*! @brief Defines the PPS instance numbers. */
337 typedef enum _enet_qos_ptp_pps_instance
338 {
339     kENET_QOS_PtpPpsIstance0 = 0U, /*!< PPS instance 0. */
340     kENET_QOS_PtpPpsIstance1,      /*!< PPS instance 1. */
341     kENET_QOS_PtpPpsIstance2,      /*!< PPS instance 2. */
342     kENET_QOS_PtpPpsIstance3       /*!< PPS instance 3. */
343 } enet_qos_ptp_pps_instance_t;
344 
345 /*! @brief Defines the Target Time register mode. */
346 typedef enum _enet_qos_ptp_pps_trgt_mode
347 {
348     kENET_QOS_PtpPpsTrgtModeOnlyInt = 0U, /*!< Only interrupts. */
349     kENET_QOS_PtpPpsTrgtModeIntSt   = 2,  /*!< Both interrupt and output signal. */
350     kENET_QOS_PtpPpsTrgtModeOnlySt  = 3,  /*!< Only output signal. */
351 } enet_qos_ptp_pps_trgt_mode_t;
352 
353 /*! @brief Defines commands for ppscmd register. */
354 typedef enum _enet_qos_ptp_pps_cmd
355 {
356     kENET_QOS_PtpPpsCmdNC    = 0U, /*!< No Command. */
357     kENET_QOS_PtpPpsCmdSSP   = 1U, /*!< Start Single Pulse. */
358     kENET_QOS_PtpPpsCmdSPT   = 2U, /*!< Start Pulse Train. */
359     kENET_QOS_PtpPpsCmdCS    = 3U, /*!< Cancel Start. */
360     kENET_QOS_PtpPpsCmdSPTAT = 4U, /*!< Stop Pulse Train At Time. */
361     kENET_QOS_PtpPpsCmdSPTI  = 5U, /*!< Stop Pulse Train Immediately. */
362     kENET_QOS_PtpPpsCmdCSPT  = 6U, /*!< Cancel Stop Pulse Train. */
363 } enet_qos_ptp_pps_cmd_t;
364 
365 /*! @brief Defines the enmueration of ETS list length.
366  */
367 typedef enum _enet_qos_ets_list_length
368 {
369     kENET_QOS_Ets_List_64   = 7U,  /*!< List length of 64 */
370     kENET_QOS_Ets_List_128  = 8U,  /*!< List length of 128 */
371     kENET_QOS_Ets_List_256  = 9U,  /*!< List length of 256 */
372     kENET_QOS_Ets_List_512  = 10U, /*!< List length of 512 */
373     kENET_QOS_Ets_List_1024 = 11U, /*!< List length of 1024 */
374 } enet_qos_ets_list_length_t;
375 
376 /*! @brief Defines the enmueration of ETS gate control address.
377  */
378 typedef enum _enet_qos_ets_gccr_addr
379 {
380     kENET_QOS_Ets_btr_low  = 0U, /*!< BTR Low */
381     kENET_QOS_Ets_btr_high = 1U, /*!< BTR High */
382     kENET_QOS_Ets_ctr_low  = 2U, /*!< CTR Low */
383     kENET_QOS_Ets_ctr_high = 3U, /*!< CTR High */
384     kENET_QOS_Ets_ter      = 4U, /*!< TER */
385     kENET_QOS_Ets_llr      = 5U, /*!< LLR */
386 } enet_qos_ets_gccr_addr_t;
387 
388 /*! @brief Defines the enmueration of DMA channel used
389  * for rx parser entry.
390  */
391 typedef enum _enet_qos_rxp_dma_chn
392 {
393     kENET_QOS_Rxp_DMAChn0 = 1U,  /*!< DMA Channel 0 used for RXP entry match */
394     kENET_QOS_Rxp_DMAChn1 = 2U,  /*!< DMA Channel 1 used for RXP entry match */
395     kENET_QOS_Rxp_DMAChn2 = 4U,  /*!< DMA Channel 2 used for RXP entry match */
396     kENET_QOS_Rxp_DMAChn3 = 8U,  /*!< DMA Channel 3 used for RXP entry match */
397     kENET_QOS_Rxp_DMAChn4 = 16U, /*!< DMA Channel 4 used for RXP entry match */
398 } enet_qos_rxp_dma_chn_t;
399 
400 /*! @brief Defines the receive descriptor structure
401  *  has the read-format and write-back format structure. They both
402  *  has the same size with different region definition. so
403  *  we define the read-format region as the receive descriptor structure
404  *  Use the read-format region mask bits in the descriptor initialization
405  *  Use the write-back format region mask bits in the receive data process.
406  */
407 typedef struct _enet_qos_rx_bd_struct
408 {
409     __IO uint32_t buff1Addr; /*!< Buffer 1 address */
410     __IO uint32_t reserved;  /*!< Reserved */
411     __IO uint32_t buff2Addr; /*!< Buffer 2 or next descriptor address */
412     __IO uint32_t control;   /*!< Buffer 1/2 byte counts and control */
413 } enet_qos_rx_bd_struct_t;
414 
415 /*! @brief Defines the transmit descriptor structure
416  *  has the read-format and write-back format structure. They both
417  *  has the same size with different region definition. so
418  *  we define the read-format region as the transmit descriptor structure
419  *  Use the read-format region mask bits in the descriptor initialization
420  *  Use the write-back format region mask bits in the transmit data process.
421  */
422 typedef struct _enet_qos_tx_bd_struct
423 {
424     __IO uint32_t buff1Addr;   /*!< Buffer 1 address */
425     __IO uint32_t buff2Addr;   /*!< Buffer 2 address */
426     __IO uint32_t buffLen;     /*!< Buffer 1/2 byte counts */
427     __IO uint32_t controlStat; /*!< TDES control and status word */
428 } enet_qos_tx_bd_struct_t;
429 
430 /*! @brief Defines the ENET PTP time stamp structure. */
431 typedef struct _enet_qos_ptp_time
432 {
433     uint64_t second;     /*!< Second. */
434     uint32_t nanosecond; /*!< Nanosecond. */
435 } enet_qos_ptp_time_t;
436 
437 /*! @brief Defines the frame info structure. */
438 typedef struct enet_qos_frame_info
439 {
440     void *context;                 /*!< User specified data, could be buffer address for free */
441     bool isTsAvail;                /*!< Flag indicates timestamp available status */
442     enet_qos_ptp_time_t timeStamp; /*!< Timestamp of frame */
443 } enet_qos_frame_info_t;
444 
445 /*! @brief Defines the ENET transmit dirty addresses ring/queue structure. */
446 typedef struct _enet_qos_tx_dirty_ring
447 {
448     enet_qos_frame_info_t *txDirtyBase; /*!< Dirty buffer descriptor base address pointer. */
449     uint16_t txGenIdx;                  /*!< tx generate index. */
450     uint16_t txConsumIdx;               /*!< tx consume index. */
451     uint16_t txRingLen;                 /*!< tx ring length. */
452     bool isFull;                        /*!< tx ring is full flag, add this parameter to avoid waste one element. */
453 } enet_qos_tx_dirty_ring_t;
454 
455 /*! @brief Defines the ENET PTP configuration structure. */
456 typedef struct _enet_qos_ptp_config
457 {
458     bool fineUpdateEnable;       /*!< Use the fine update. */
459     uint32_t defaultAddend;      /*!< Default addend value when fine update is enable, could be 2^32 / (refClk_Hz /
460                                     ENET_QOS_MICRSECS_ONESECOND / ENET_QOS_SYSTIME_REQUIRED_CLK_MHZ). */
461     uint32_t systemTimeClock_Hz; /*! The desired system time frequency. Must be lower than reference clock. (Only used
462                                     with fine correction method). */
463     bool ptp1588V2Enable;        /*!< ptp 1588 version 2 is used. */
464     enet_qos_ts_rollover_type tsRollover; /*!< 1588 time nanosecond rollover. */
465 } enet_qos_ptp_config_t;
466 
467 /*! @brief Defines the EST gate operation structure. */
468 typedef struct _enet_qos_est_gate_op
469 {
470     uint32_t gate;
471     uint32_t interval;
472 } enet_qos_est_gate_op_t;
473 
474 /*! @brief Defines the EST gate control list structure. */
475 typedef struct _enet_qos_est_gcl
476 {
477     bool enable;                    /*!< Enable or disable EST */
478     uint64_t baseTime;              /*! Base Time 32 bits seconds 32 bits nanoseconds */
479     uint64_t cycleTime;             /*! Cycle Time 32 bits seconds 32 bits nanoseconds */
480     uint32_t extTime;               /*! Time Extension 32 bits seconds 32 bits nanoseconds */
481     uint32_t numEntries;            /*! Number of entries */
482     enet_qos_est_gate_op_t *opList; /*! Pointer to GCL list size */
483 } enet_qos_est_gcl_t;
484 
485 /*! @brief Defines the ENET_QOS Rx parser configuration structure.*/
486 typedef struct _enet_qos_rxp_config
487 {
488     uint32_t matchData;       /*! 4-byte match data used for comparing with incoming packet */
489     uint32_t matchEnable;     /*! When matchEnable is set to 1, the matchData is used for comparing */
490     uint8_t acceptFrame : 1;  /*! When acceptFrame = 1 and data is matched, the frame will be sent to DMA channel */
491     uint8_t rejectFrame : 1;  /*! When rejectFrame = 1 and data is matched, the frame will be dropped */
492     uint8_t inverseMatch : 1; /*! Inverse match */
493     uint8_t nextControl : 1;  /*! Next instruction indexing control */
494     uint8_t reserved : 4;     /*! Reserved control fields */
495     uint8_t frameOffset;      /*! Frame offset in the packet data to be compared for match, in terms of 4 bytes. */
496     uint8_t okIndex;          /*! Memory Index to be used next. */
497     uint8_t dmaChannel; /*! The DMA channel enet_qos_rxp_dma_chn_t used for receiving the frame when frame match and
498                            acceptFrame = 1 */
499     uint32_t reserved2; /*! Reserved for future enhancements */
500 } enet_qos_rxp_config_t;
501 
502 /*! @brief Defines the buffer descriptor configure structure.
503  *
504  * @note
505  * 1. The receive and transmit descriptor start address pointer and tail pointer must be word-aligned.
506  * 2. The recommended minimum tx/rx ring length is 4.
507  * 3. The tx/rx descriptor tail address shall be the address pointer to the address just after the end
508  *    of the last last descriptor. because only the descriptors between the start address and the
509  *    tail address will be used by DMA.
510  * 4. The descriptor address is the start address of all used contiguous memory.
511  *    for example, the rxDescStartAddrAlign is the start address of rxRingLen contiguous descriptor memories
512  *    for rx descriptor ring 0.
513  * 5. The "*rxBufferstartAddr" is the first element of  rxRingLen (2*rxRingLen for double buffers)
514  *    rx buffers. It means the *rxBufferStartAddr is the rx buffer for the first descriptor
515  *    the *rxBufferStartAddr + 1 is the rx buffer for the second descriptor or the rx buffer for
516  *    the second buffer in the first descriptor. so please make sure the rxBufferStartAddr is the
517  *    address of a rxRingLen or 2*rxRingLen array.
518  */
519 typedef struct _enet_qos_buffer_config
520 {
521     uint8_t rxRingLen;                             /*!< The length of receive buffer descriptor ring. */
522     uint8_t txRingLen;                             /*!< The length of transmit buffer descriptor ring. */
523     enet_qos_tx_bd_struct_t *txDescStartAddrAlign; /*!< Aligned transmit descriptor start address. */
524     enet_qos_tx_bd_struct_t *txDescTailAddrAlign;  /*!< Aligned transmit descriptor tail address. */
525     enet_qos_frame_info_t *txDirtyStartAddr;       /*!< Start address of the dirty tx frame information. */
526     enet_qos_rx_bd_struct_t *rxDescStartAddrAlign; /*!< Aligned receive descriptor start address. */
527     enet_qos_rx_bd_struct_t *rxDescTailAddrAlign;  /*!< Aligned receive descriptor tail address. */
528     uint32_t *rxBufferStartAddr;                   /*!< Start address of the rx buffers. */
529     uint32_t rxBuffSizeAlign;                      /*!< Aligned receive data buffer size. */
530     bool rxBuffNeedMaintain;                       /*!< Whether receive data buffer need cache maintain. */
531 } enet_qos_buffer_config_t;
532 
533 /*! @brief Defines the CBS configuration for queue. */
534 typedef struct _enet_qos_cbs_config
535 {
536     uint16_t sendSlope;  /*!< Send slope configuration. */
537     uint16_t idleSlope;  /*!< Idle slope configuration. */
538     uint32_t highCredit; /*!< High credit. */
539     uint32_t lowCredit;  /*!< Low credit. */
540 } enet_qos_cbs_config_t;
541 
542 /*! @brief Defines the queue configuration structure. */
543 typedef struct enet_qos_tx_queue_config
544 {
545     enet_qos_queue_mode_t mode;       /*!< tx queue mode configuration. */
546     uint32_t weight;                  /*!< Refer to the MTL TxQ Quantum Weight register. */
547     uint32_t priority;                /*!< Refer to Transmit Queue Priority Mapping register. */
548     enet_qos_cbs_config_t *cbsConfig; /*!< CBS configuration if queue use AVB mode. */
549 } enet_qos_queue_tx_config_t;
550 
551 /*! @brief Defines the queue configuration structure. */
552 typedef struct enet_qos_rx_queue_config
553 {
554     enet_qos_queue_mode_t mode;            /*!< rx queue mode configuration. */
555     uint8_t mapChannel;                    /*!< tx queue map dma channel. */
556     uint32_t priority;                     /*!< Rx queue priority. */
557     enet_qos_rx_queue_route_t packetRoute; /*!< Receive packet routing. */
558 } enet_qos_queue_rx_config_t;
559 
560 /*! @brief Defines the configuration when multi-queue is used. */
561 typedef struct enet_qos_multiqueue_config
562 {
563     enet_qos_dma_burstlen burstLen;                                  /*!< Burst len for the multi-queue. */
564     uint8_t txQueueUse;                                              /*!< Used Tx queue count. */
565     enet_qos_mtl_multiqueue_txsche mtltxSche;                        /*!< Transmit schedule for multi-queue. */
566     enet_qos_queue_tx_config_t txQueueConfig[ENET_QOS_RING_NUM_MAX]; /*!< Tx Queue configuration. */
567     uint8_t rxQueueUse;                                              /*!< Used Rx queue count. */
568     enet_qos_mtl_multiqueue_rxsche mtlrxSche;                        /*!< Receive schedule for multi-queue. */
569     enet_qos_queue_rx_config_t rxQueueConfig[ENET_QOS_RING_NUM_MAX]; /*!< Rx Queue configuration. */
570 } enet_qos_multiqueue_config_t;
571 
572 /*! @brief Defines the Rx memory buffer alloc function pointer. */
573 typedef void *(*enet_qos_rx_alloc_callback_t)(ENET_QOS_Type *base, void *userData, uint8_t channel);
574 
575 /*! @brief Defines the Rx memory buffer free function pointer. */
576 typedef void (*enet_qos_rx_free_callback_t)(ENET_QOS_Type *base, void *buffer, void *userData, uint8_t channel);
577 
578 /*! @brief Defines the basic configuration structure for the ENET device.
579  *
580  *  @note Default the signal queue is used so the "*multiqueueCfg" is set default
581  *  with NULL. Set the pointer with a valid configuration pointer if the multiple
582  *  queues are required. If multiple queue is enabled, please make sure the
583  *  buffer configuration for all are prepared also.
584  */
585 typedef struct _enet_qos_config
586 {
587     uint16_t specialControl;                     /*!< The logic or of enet_qos_special_config_t */
588     enet_qos_multiqueue_config_t *multiqueueCfg; /*!< Use multi-queue. */
589     /* -----------------MAC block-------------------------------*/
590     enet_qos_mii_mode_t miiMode;     /*!< MII mode. */
591     enet_qos_mii_speed_t miiSpeed;   /*!< MII Speed. */
592     enet_qos_mii_duplex_t miiDuplex; /*!< MII duplex. */
593     uint16_t
594         pauseDuration; /*!< Used in the tx flow control frame, only valid when kENET_QOS_FlowControlEnable is set. */
595                        /* -----------------Timestamp -------------------------------*/
596     enet_qos_ptp_config_t *ptpConfig;         /*!< PTP 1588 feature configuration */
597     uint32_t csrClock_Hz;                     /*!< CSR clock frequency in HZ. */
598     enet_qos_rx_alloc_callback_t rxBuffAlloc; /*!< Callback to alloc memory, must be provided for zero-copy Rx. */
599     enet_qos_rx_free_callback_t rxBuffFree;   /*!< Callback to free memory, must be provided for zero-copy Rx. */
600 } enet_qos_config_t;
601 
602 /* Forward declaration of the handle typedef. */
603 typedef struct _enet_qos_handle enet_qos_handle_t;
604 
605 /*! @brief ENET callback function. */
606 typedef void (*enet_qos_callback_t)(
607     ENET_QOS_Type *base, enet_qos_handle_t *handle, enet_qos_event_t event, uint8_t channel, void *userData);
608 
609 /*! @brief Defines the ENET transmit buffer descriptor ring/queue structure. */
610 typedef struct _enet_qos_tx_bd_ring
611 {
612     enet_qos_tx_bd_struct_t *txBdBase; /*!< Buffer descriptor base address pointer. */
613     uint16_t txGenIdx;                 /*!< tx generate index. */
614     uint16_t txConsumIdx;              /*!< tx consume index. */
615     volatile uint16_t txDescUsed;      /*!< tx descriptor used number. */
616     uint16_t txRingLen;                /*!< tx ring length. */
617 } enet_qos_tx_bd_ring_t;
618 
619 /*! @brief Defines the ENET receive buffer descriptor ring/queue structure. */
620 typedef struct _enet_qos_rx_bd_ring
621 {
622     enet_qos_rx_bd_struct_t *rxBdBase; /*!< Buffer descriptor base address pointer. */
623     uint16_t rxGenIdx;                 /*!< The current available receive buffer descriptor pointer. */
624     uint16_t rxRingLen;                /*!< Receive ring length. */
625     uint32_t rxBuffSizeAlign;          /*!< Receive buffer size. */
626 } enet_qos_rx_bd_ring_t;
627 
628 /*! @brief Defines the ENET handler structure. */
629 struct _enet_qos_handle
630 {
631     uint8_t txQueueUse;                                          /*!< Used tx queue count. */
632     uint8_t rxQueueUse;                                          /*!< Used rx queue count. */
633     bool doubleBuffEnable;                                       /*!< The double buffer is used in the descriptor. */
634     bool rxintEnable;                                            /*!< Rx interrupt enabled. */
635     bool rxMaintainEnable[ENET_QOS_RING_NUM_MAX];                /*!< Rx buffer cache maintain enabled. */
636     enet_qos_rx_bd_ring_t rxBdRing[ENET_QOS_RING_NUM_MAX];       /*!< Receive buffer descriptor.  */
637     enet_qos_tx_bd_ring_t txBdRing[ENET_QOS_RING_NUM_MAX];       /*!< Transmit buffer descriptor.  */
638     enet_qos_tx_dirty_ring_t txDirtyRing[ENET_QOS_RING_NUM_MAX]; /*!< Transmit dirty buffers addresses.  */
639     uint32_t *rxBufferStartAddr[ENET_QOS_RING_NUM_MAX];          /*!< Rx buffer start address for reInitialize. */
640     enet_qos_callback_t callback;                                /*!< Callback function. */
641     void *userData;                                              /*!< Callback function parameter.*/
642     uint8_t multicastCount[64];                                  /*!< Multicast collisions counter */
643     enet_qos_rx_alloc_callback_t rxBuffAlloc; /*!< Callback to alloc memory, must be provided for zero-copy Rx. */
644     enet_qos_rx_free_callback_t rxBuffFree;   /*!< Callback to free memory, must be provided for zero-copy Rx. */
645 };
646 
647 /*! @brief Defines the frame buffer structure. */
648 typedef struct _enet_qos_buffer_struct
649 {
650     void *buffer;    /*!< The buffer store the whole or partial frame. */
651     uint16_t length; /*!< The byte length of this buffer. */
652 } enet_qos_buffer_struct_t;
653 
654 /*! @brief Defines the Rx frame error structure. */
655 typedef struct _enet_qos_rx_frame_error
656 {
657     bool rxDstAddrFilterErr : 1; /*!< Destination Address Filter Fail. */
658     bool rxSrcAddrFilterErr : 1; /*!< SA Address Filter Fail. */
659     bool rxDribbleErr : 1;       /*!< Dribble error. */
660     bool rxReceiveErr : 1;       /*!< Receive error. */
661     bool rxOverFlowErr : 1;      /*!< Receive over flow. */
662     bool rxWatchDogErr : 1;      /*!< Watch dog timeout. */
663     bool rxGaintPacketErr : 1;   /*!< Receive gaint packet. */
664     bool rxCrcErr : 1;           /*!< Receive CRC error. */
665 } enet_qos_rx_frame_error_t;
666 
667 typedef struct _enet_qos_rx_frame_attribute_struct
668 {
669     bool isTsAvail;                /*!< Rx frame timestamp is available or not. */
670     enet_qos_ptp_time_t timestamp; /*!< The nanosecond part timestamp of this Rx frame. */
671 } enet_qos_rx_frame_attribute_t;
672 
673 /*! @brief Defines the Rx frame data structure. */
674 typedef struct _enet_qos_rx_frame_struct
675 {
676     enet_qos_buffer_struct_t *rxBuffArray;     /*!< Rx frame buffer structure. */
677     uint16_t totLen;                           /*!< Rx frame total length. */
678     enet_qos_rx_frame_attribute_t rxAttribute; /*!< Rx frame attribute structure. */
679     enet_qos_rx_frame_error_t rxFrameError;    /*!< Rx frame error. */
680 } enet_qos_rx_frame_struct_t;
681 
682 /*! @brief Defines the ENET QOS transfer statistics structure. */
683 typedef struct _enet_qos_transfer_stats
684 {
685     uint32_t statsRxFrameCount;      /*!< Rx frame number. */
686     uint32_t statsRxCrcErr;          /*!< Rx frame number with CRC error. */
687     uint32_t statsRxAlignErr;        /*!< Rx frame number with alignment error. */
688     uint32_t statsRxLengthErr;       /*!< Rx frame length field doesn't equal to packet size. */
689     uint32_t statsRxFifoOverflowErr; /*!< Rx FIFO overflow count. */
690     uint32_t statsTxFrameCount;      /*!< Tx frame number. */
691     uint32_t statsTxFifoUnderRunErr; /*!< Tx FIFO underrun count. */
692 } enet_qos_transfer_stats_t;
693 
694 /* Typedef for interrupt handler. */
695 typedef void (*enet_qos_isr_t)(ENET_QOS_Type *base, enet_qos_handle_t *handle);
696 
697 #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
698 /*! @brief Pointers to enet clocks for each instance. */
699 extern const clock_ip_name_t s_enetqosClock[];
700 #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
701 
702 /*!
703  * @brief Set ENET system configuration.
704  * @note User needs to provide the implementation because the implementation is SoC specific.
705  *  This function set the phy selection and enable clock.
706  *  It should be called before any other ethernet operation.
707  *
708  * @param miiMode  The MII/RGMII/RMII mode for interface between the phy and Ethernet.
709  */
710 extern void ENET_QOS_SetSYSControl(enet_qos_mii_mode_t miiMode);
711 
712 /*******************************************************************************
713  * API
714  ******************************************************************************/
715 
716 #if defined(__cplusplus)
717 extern "C" {
718 #endif
719 
720 /*!
721  * @name Initialization and De-initialization
722  * @{
723  */
724 
725 /*!
726  * @brief Gets the ENET default configuration structure.
727  *
728  * The purpose of this API is to get the default ENET configure
729  * structure for @ref ENET_QOS_Init(). User may use the initialized
730  * structure unchanged in @ref ENET_QOS_Init(), or modify some fields of the
731  * structure before calling @ref ENET_QOS_Init().
732  * Example:
733    @code
734    enet_qos_config_t config;
735    ENET_QOS_GetDefaultConfig(&config);
736    @endcode
737  * @param config The ENET mac controller configuration structure pointer.
738  */
739 void ENET_QOS_GetDefaultConfig(enet_qos_config_t *config);
740 
741 /*!
742  * @brief Initializes the ENET module.
743  *
744  * This function initializes it with the ENET basic
745  * configuration.
746  *
747  * @param base    ENET peripheral base address.
748  * @param config  ENET mac configuration structure pointer.
749  *        The "enet_qos_config_t" type mac configuration return from ENET_QOS_GetDefaultConfig
750  *        can be used directly. It is also possible to verify the Mac configuration using other methods.
751  * @param macAddr  Pointer to ENET mac address array of Ethernet device. This MAC address should be
752  *        provided.
753  * @param macCount Count of macAddr in the ENET mac address array
754  * @param refclkSrc_Hz ENET input reference clock.
755  */
756 status_t ENET_QOS_Up(
757     ENET_QOS_Type *base, const enet_qos_config_t *config, uint8_t *macAddr, uint8_t macCount, uint32_t refclkSrc_Hz);
758 
759 /*!
760  * @brief Initializes the ENET module.
761  *
762  * This function ungates the module clock and initializes it with the ENET basic
763  * configuration.
764  *
765  * @param base    ENET peripheral base address.
766  * @param config  ENET mac configuration structure pointer.
767  *        The "enet_qos_config_t" type mac configuration return from ENET_QOS_GetDefaultConfig
768  *        can be used directly. It is also possible to verify the Mac configuration using other methods.
769  * @param macAddr  Pointer to ENET mac address array of Ethernet device. This MAC address should be
770  *        provided.
771  * @param macCount Count of macAddr in the ENET mac address array
772  * @param refclkSrc_Hz ENET input reference clock.
773  */
774 status_t ENET_QOS_Init(
775     ENET_QOS_Type *base, const enet_qos_config_t *config, uint8_t *macAddr, uint8_t macCount, uint32_t refclkSrc_Hz);
776 
777 /*!
778  * @brief Stops the ENET module.
779 
780  * This function disables the ENET module.
781  *
782  * @param base  ENET peripheral base address.
783  */
784 void ENET_QOS_Down(ENET_QOS_Type *base);
785 
786 /*!
787  * @brief Deinitializes the ENET module.
788 
789  * This function gates the module clock and disables the ENET module.
790  *
791  * @param base  ENET peripheral base address.
792  */
793 void ENET_QOS_Deinit(ENET_QOS_Type *base);
794 
795 /*!
796  * @brief Get the ENET instance from peripheral base address.
797  *
798  * @param base ENET peripheral base address.
799  * @return ENET instance.
800  */
801 uint32_t ENET_QOS_GetInstance(ENET_QOS_Type *base);
802 
803 /*!
804  * @brief Initialize for all ENET descriptors.
805  *
806  * @note This function is do all tx/rx descriptors initialization. Because this API
807  *  read all interrupt registers first and then set the interrupt flag for all descriptors,
808  * if the interrupt register is set. so the descriptor initialization should be called
809  * after ENET_QOS_Init(), ENET_QOS_EnableInterrupts() and ENET_QOS_CreateHandle()(if transactional APIs
810  * are used).
811  *
812  * @param base  ENET peripheral base address.
813  * @param config The configuration for ENET.
814  * @param bufferConfig All buffers configuration.
815  */
816 status_t ENET_QOS_DescriptorInit(ENET_QOS_Type *base,
817                                  enet_qos_config_t *config,
818                                  enet_qos_buffer_config_t *bufferConfig);
819 
820 /*!
821  * @brief Allocates Rx buffers for all BDs.
822  * It's used for zero copy Rx. In zero copy Rx case, Rx buffers are dynamic. This function
823  * will populate initial buffers in all BDs for receiving. Then ENET_QOS_GetRxFrame() is used
824  * to get Rx frame with zero copy, it will allocate new buffer to replace the buffer in BD taken
825  * by application application should free those buffers after they're used.
826  *
827  * @note This function should be called after ENET_QOS_CreateHandler() and buffer allocating callback
828  * function should be ready.
829  *
830  * @param base  ENET_QOS peripheral base address.
831  * @param handle The ENET_QOS handler structure. This is the same handler pointer used in the ENET_QOS_Init.
832  */
833 status_t ENET_QOS_RxBufferAllocAll(ENET_QOS_Type *base, enet_qos_handle_t *handle);
834 
835 /*!
836  * @brief Frees Rx buffers in all BDs.
837  * It's used for zero copy Rx. In zero copy Rx case, Rx buffers are dynamic. This function
838  * will free left buffers in all BDs.
839  *
840  * @param base  ENET_QOS peripheral base address.
841  * @param handle The ENET_QOS handler structure. This is the same handler pointer used in the ENET_QOS_Init.
842  */
843 void ENET_QOS_RxBufferFreeAll(ENET_QOS_Type *base, enet_qos_handle_t *handle);
844 
845 /*!
846  * @brief Starts the ENET rx/tx.
847  *  This function enable the tx/rx and starts the rx/tx DMA.
848  * This shall be set after ENET initialization and before
849  * starting to receive the data.
850  *
851  * @param base  ENET peripheral base address.
852  * @param rxRingNum  The number of the used rx rings. It shall not be
853  * larger than the ENET_QOS_RING_NUM_MAX(2). If the ringNum is set with
854  * 1, the ring 0 will be used.
855  * @param txRingNum  The number of the used tx rings. It shall not be
856  * larger than the ENET_QOS_RING_NUM_MAX(2). If the ringNum is set with
857  * 1, the ring 0 will be used.
858  *
859  * @note This must be called after all the ENET initialization.
860  * And should be called when the ENET receive/transmit is required.
861  */
862 void ENET_QOS_StartRxTx(ENET_QOS_Type *base, uint8_t txRingNum, uint8_t rxRingNum);
863 
864 /* @} */
865 
866 /*!
867  * @name MII interface operation
868  * @{
869  */
870 
871 /*!
872  * @brief Sets the ENET MII speed and duplex.
873  *
874  * This API is provided to dynamically change the speed and duplex for MAC.
875  *
876  * @param base  ENET peripheral base address.
877  * @param speed The speed of the RMII mode.
878  * @param duplex The duplex of the RMII mode.
879  */
ENET_QOS_SetMII(ENET_QOS_Type * base,enet_qos_mii_speed_t speed,enet_qos_mii_duplex_t duplex)880 static inline void ENET_QOS_SetMII(ENET_QOS_Type *base, enet_qos_mii_speed_t speed, enet_qos_mii_duplex_t duplex)
881 {
882     uint32_t reg = base->MAC_CONFIGURATION & ~(ENET_QOS_MAC_CONFIGURATION_DM_MASK | ENET_QOS_MAC_CONFIGURATION_PS_MASK |
883                                                ENET_QOS_MAC_CONFIGURATION_FES_MASK);
884     reg |= ENET_QOS_MAC_CONFIGURATION_DM(duplex) | (uint32_t)speed;
885 
886     base->MAC_CONFIGURATION = reg;
887 }
888 
889 /*!
890  * @brief Sets the ENET SMI(serial management interface)- MII management interface.
891  *
892  * @param base  ENET peripheral base address.
893  * @param csrClock_Hz  CSR clock frequency in HZ
894  */
895 void ENET_QOS_SetSMI(ENET_QOS_Type *base, uint32_t csrClock_Hz);
896 
897 /*!
898  * @brief Checks if the SMI is busy.
899  *
900  * @param base  ENET peripheral base address.
901  * @return The status of MII Busy status.
902  */
ENET_QOS_IsSMIBusy(ENET_QOS_Type * base)903 static inline bool ENET_QOS_IsSMIBusy(ENET_QOS_Type *base)
904 {
905     return ((base->MAC_MDIO_ADDRESS & ENET_QOS_MAC_MDIO_ADDRESS_GB_MASK) != 0U) ? true : false;
906 }
907 
908 /*!
909  * @brief Reads data from the PHY register through SMI interface.
910  *
911  * @param base  ENET peripheral base address.
912  * @return The data read from PHY
913  */
ENET_QOS_ReadSMIData(ENET_QOS_Type * base)914 static inline uint16_t ENET_QOS_ReadSMIData(ENET_QOS_Type *base)
915 {
916     return (uint16_t)(base->MAC_MDIO_DATA & ENET_QOS_MAC_MDIO_DATA_GD_MASK);
917 }
918 
919 /*!
920  * @brief Starts an SMI read command.
921  * It supports MDIO IEEE802.3 Clause 22.
922  * After send command, user needs to check whether the transmission is over
923  * with ENET_QOS_IsSMIBusy().
924  *
925  * @param base  ENET peripheral base address.
926  * @param phyAddr The PHY address.
927  * @param phyReg The PHY register.
928  */
929 void ENET_QOS_StartSMIRead(ENET_QOS_Type *base, uint32_t phyAddr, uint32_t phyReg);
930 
931 /*!
932  * @brief Starts a SMI write command.
933  * It supports MDIO IEEE802.3 Clause 22.
934  * After send command, user needs to check whether the transmission is over
935  * with ENET_QOS_IsSMIBusy().
936  *
937  * @param base  ENET peripheral base address.
938  * @param phyAddr The PHY address.
939  * @param phyReg The PHY register.
940  * @param data The data written to PHY.
941  */
942 void ENET_QOS_StartSMIWrite(ENET_QOS_Type *base, uint32_t phyAddr, uint32_t phyReg, uint32_t data);
943 
944 /*!
945  * @brief Starts a SMI write command.
946  * It supports MDIO IEEE802.3 Clause 45.
947  * After send command, user needs to check whether the transmission is over
948  * with ENET_QOS_IsSMIBusy().
949  *
950  * @param base  ENET peripheral base address.
951  * @param phyAddr The PHY address.
952  * @param device The PHY device type.
953  * @param phyReg The PHY register address.
954  * @param data The data written to PHY.
955  */
956 void ENET_QOS_StartExtC45SMIWrite(
957     ENET_QOS_Type *base, uint32_t phyAddr, uint32_t device, uint32_t phyReg, uint32_t data);
958 
959 /*!
960  * @brief Starts a SMI read command.
961  * It supports MDIO IEEE802.3 Clause 45.
962  * After send command, user needs to check whether the transmission is over
963  * with ENET_QOS_IsSMIBusy().
964  *
965  * @param base  ENET peripheral base address.
966  * @param phyAddr The PHY address.
967  * @param device The PHY device type.
968  * @param phyReg The PHY register address.
969  */
970 void ENET_QOS_StartExtC45SMIRead(ENET_QOS_Type *base, uint32_t phyAddr, uint32_t device, uint32_t phyReg);
971 /* @} */
972 
973 /*!
974  * @name Other basic operation
975  * @{
976  */
977 
978 /*!
979  * @brief Sets the ENET module Mac address.
980  *
981  * @param base  ENET peripheral base address.
982  * @param macAddr The six-byte Mac address pointer.
983  *        The pointer is allocated by application and input into the API.
984  * @param index Configure macAddr to MAC_ADDRESS[index] register.
985  */
ENET_QOS_SetMacAddr(ENET_QOS_Type * base,uint8_t * macAddr,uint8_t index)986 static inline void ENET_QOS_SetMacAddr(ENET_QOS_Type *base, uint8_t *macAddr, uint8_t index)
987 {
988     uint32_t lowAddress;
989     uint32_t highAddress;
990 
991     assert(macAddr != NULL);
992 
993     lowAddress = ((uint32_t)macAddr[3] << 24U) | ((uint32_t)macAddr[2] << 16U) | ((uint32_t)macAddr[1] << 8U) |
994                  ((uint32_t)macAddr[0]);
995     highAddress = ((uint32_t)macAddr[5] << 8U) | ((uint32_t)macAddr[4]);
996     /* Set Macaddr, the MAC address registers are configured to be double-synchronized to the MII clock
997       domains, then the synchronization is triggered only when bits 31:24 (in little-endian mode)
998       or bits 7:0 (in Big-Endian mode) of the MAC address low register are written to.*/
999     base->MAC_ADDRESS[index].HIGH = highAddress | ENET_QOS_HIGH_AE_MASK;
1000     base->MAC_ADDRESS[index].LOW  = lowAddress;
1001 }
1002 
1003 /*!
1004  * @brief Gets the ENET module Mac address.
1005  *
1006  * @param base  ENET peripheral base address.
1007  * @param macAddr The six-byte Mac address pointer.
1008  *        The pointer is allocated by application and input into the API.
1009  * @param index Get macAddr from MAC_ADDRESS[index] register.
1010  */
1011 void ENET_QOS_GetMacAddr(ENET_QOS_Type *base, uint8_t *macAddr, uint8_t index);
1012 
1013 /*!
1014  * @brief Adds the ENET_QOS device to a multicast group.
1015  *
1016  * @param base    ENET_QOS peripheral base address.
1017  * @param address The six-byte multicast group address which is provided by application.
1018  */
1019 void ENET_QOS_AddMulticastGroup(ENET_QOS_Type *base, uint8_t *address);
1020 
1021 /*!
1022  * @brief Moves the ENET_QOS device from a multicast group.
1023  *
1024  * @param base  ENET_QOS peripheral base address.
1025  * @param address The six-byte multicast group address which is provided by application.
1026  */
1027 void ENET_QOS_LeaveMulticastGroup(ENET_QOS_Type *base, uint8_t *address);
1028 
1029 /*!
1030  * @brief Enable ENET device to accept all multicast frames.
1031  *
1032  * @param base    ENET peripheral base address.
1033  */
ENET_QOS_AcceptAllMulticast(ENET_QOS_Type * base)1034 static inline void ENET_QOS_AcceptAllMulticast(ENET_QOS_Type *base)
1035 {
1036     uint32_t reg = base->MAC_PACKET_FILTER;
1037 
1038     base->MAC_PACKET_FILTER = reg | ENET_QOS_MAC_PACKET_FILTER_PM_MASK;
1039 }
1040 
1041 /*!
1042  * @brief ENET device reject to accept all multicast frames.
1043  *
1044  * @param base  ENET peripheral base address.
1045  */
ENET_QOS_RejectAllMulticast(ENET_QOS_Type * base)1046 static inline void ENET_QOS_RejectAllMulticast(ENET_QOS_Type *base)
1047 {
1048     uint32_t reg = base->MAC_PACKET_FILTER;
1049 
1050     base->MAC_PACKET_FILTER = reg & ~ENET_QOS_MAC_PACKET_FILTER_PM_MASK;
1051 }
1052 
1053 /*!
1054  * @brief Set the MAC to enter into power down mode.
1055  * the remote power wake up frame and magic frame can wake up
1056  * the ENET from the power down mode.
1057  *
1058  * @param base    ENET peripheral base address.
1059  * @param wakeFilter  The wakeFilter provided to configure the wake up frame filter.
1060  *  Set the wakeFilter to NULL is not required. But if you have the filter requirement,
1061  *  please make sure the wakeFilter pointer shall be eight continuous
1062  *  32-bits configuration.
1063  */
1064 void ENET_QOS_EnterPowerDown(ENET_QOS_Type *base, uint32_t *wakeFilter);
1065 
1066 /*!
1067  * @brief Set the MAC to exit power down mode.
1068  * Exit from the power down mode and recover to normal work mode.
1069  *
1070  * @param base    ENET peripheral base address.
1071  */
ENET_QOS_ExitPowerDown(ENET_QOS_Type * base)1072 static inline void ENET_QOS_ExitPowerDown(ENET_QOS_Type *base)
1073 {
1074     /* Clear and status ans reset the power down. */
1075     base->MAC_PMT_CONTROL_STATUS &= ~ENET_QOS_MAC_PMT_CONTROL_STATUS_PWRDWN_MASK;
1076 
1077     /* Restore the tx which is disabled when enter power down mode. */
1078     base->DMA_CH[0].DMA_CHX_TX_CTRL |= ENET_QOS_DMA_CHX_TX_CTRL_ST_MASK;
1079     base->DMA_CH[1].DMA_CHX_TX_CTRL |= ENET_QOS_DMA_CHX_TX_CTRL_ST_MASK;
1080     base->MAC_CONFIGURATION |= ENET_QOS_MAC_CONFIGURATION_TE_MASK;
1081 }
1082 
1083 /*!
1084  * @brief Enable/Disable Rx parser,please notice that for enable/disable Rx Parser,
1085  * should better disable Receive first.
1086  *
1087  * @param base    ENET_QOS peripheral base address.
1088  * @param enable    Enable/Disable Rx parser function
1089  * @retval kStatus_Success Configure rx parser success.
1090  * @retval kStatus_ENET_QOS_Timeout Poll status flag timeout.
1091  */
1092 status_t ENET_QOS_EnableRxParser(ENET_QOS_Type *base, bool enable);
1093 /* @} */
1094 
1095 /*!
1096  * @name Interrupts.
1097  * @{
1098  */
1099 
1100 /*!
1101  * @brief Enables the ENET DMA and MAC interrupts.
1102  *
1103  * This function enables the ENET interrupt according to the provided mask. The mask
1104  * is a logical OR of enet_qos_dma_interrupt_enable_t and enet_qos_mac_interrupt_enable_t.
1105  * For example, to enable the dma and mac interrupt, do the following.
1106  * @code
1107  *     ENET_QOS_EnableInterrupts(ENET, kENET_QOS_DmaRx | kENET_QOS_DmaTx | kENET_QOS_MacPmt);
1108  * @endcode
1109  *
1110  * @param base  ENET peripheral base address.
1111  * @param mask  ENET interrupts to enable. This is a logical OR of both
1112  *             enumeration :: enet_qos_dma_interrupt_enable_t and enet_qos_mac_interrupt_enable_t.
1113  */
1114 void ENET_QOS_EnableInterrupts(ENET_QOS_Type *base, uint32_t mask);
1115 
1116 /*!
1117  * @brief Disables the ENET DMA and MAC interrupts.
1118  *
1119  * This function disables the ENET interrupt according to the provided mask. The mask
1120  * is a logical OR of enet_qos_dma_interrupt_enable_t and enet_qos_mac_interrupt_enable_t.
1121  * For example, to disable the dma and mac interrupt, do the following.
1122  * @code
1123  *     ENET_QOS_DisableInterrupts(ENET, kENET_QOS_DmaRx | kENET_QOS_DmaTx | kENET_QOS_MacPmt);
1124  * @endcode
1125  *
1126  * @param base  ENET peripheral base address.
1127  * @param mask  ENET interrupts to disables. This is a logical OR of both
1128  *             enumeration :: enet_qos_dma_interrupt_enable_t and enet_qos_mac_interrupt_enable_t.
1129  */
1130 void ENET_QOS_DisableInterrupts(ENET_QOS_Type *base, uint32_t mask);
1131 
1132 /*!
1133  * @brief Gets the ENET DMA interrupt status flag.
1134  *
1135  * @param base  ENET peripheral base address.
1136  * @param channel The DMA Channel. Shall not be larger than ENET_QOS_RING_NUM_MAX.
1137  * @return The event status of the interrupt source. This is the logical OR of members
1138  *         of the enumeration :: enet_qos_dma_interrupt_enable_t.
1139  */
ENET_QOS_GetDmaInterruptStatus(ENET_QOS_Type * base,uint8_t channel)1140 static inline uint32_t ENET_QOS_GetDmaInterruptStatus(ENET_QOS_Type *base, uint8_t channel)
1141 {
1142     return base->DMA_CH[channel].DMA_CHX_STAT;
1143 }
1144 
1145 /*!
1146  * @brief Clear the ENET DMA interrupt status flag.
1147  *
1148  * @param base  ENET peripheral base address.
1149  * @param channel The DMA Channel. Shall not be larger than ENET_QOS_RING_NUM_MAX.
1150  * @param mask The interrupt status to be cleared. This is the logical OR of members
1151  *         of the enumeration :: enet_qos_dma_interrupt_enable_t.
1152  */
ENET_QOS_ClearDmaInterruptStatus(ENET_QOS_Type * base,uint8_t channel,uint32_t mask)1153 static inline void ENET_QOS_ClearDmaInterruptStatus(ENET_QOS_Type *base, uint8_t channel, uint32_t mask)
1154 {
1155     /* Clear the dam interrupt status bit in dma channel interrupt status register. */
1156     base->DMA_CH[channel].DMA_CHX_STAT = mask;
1157 }
1158 
1159 /*!
1160  * @brief Gets the ENET MAC interrupt status flag.
1161  *
1162  * @param base  ENET peripheral base address.
1163  * @return The event status of the interrupt source.
1164  *       Use the enum in enet_qos_mac_interrupt_enable_t and right shift
1165  *       ENET_QOS_MACINT_ENUM_OFFSET to mask the returned value to get the
1166  *       exact interrupt status.
1167  */
ENET_QOS_GetMacInterruptStatus(ENET_QOS_Type * base)1168 static inline uint32_t ENET_QOS_GetMacInterruptStatus(ENET_QOS_Type *base)
1169 {
1170     return base->MAC_INTERRUPT_STATUS;
1171 }
1172 
1173 /*!
1174  * @brief Clears the ENET mac interrupt events status flag.
1175  *
1176  * This function clears enabled ENET interrupts according to the provided mask. The mask
1177  * is a logical OR of enumeration members. See the @ref enet_qos_mac_interrupt_enable_t.
1178  * For example, to clear the TX frame interrupt and RX frame interrupt, do the following.
1179  * @code
1180  *     ENET_QOS_ClearMacInterruptStatus(ENET, kENET_QOS_MacPmt);
1181  * @endcode
1182  *
1183  * @param base  ENET peripheral base address.
1184  * @param mask  ENET interrupt source to be cleared.
1185  * This is the logical OR of members of the enumeration :: enet_qos_mac_interrupt_enable_t.
1186  */
1187 void ENET_QOS_ClearMacInterruptStatus(ENET_QOS_Type *base, uint32_t mask);
1188 
1189 /* @} */
1190 
1191 /*!
1192  * @name Functional operation.
1193  * @{
1194  */
1195 
1196 /*!
1197  * @brief Get the tx descriptor DMA Own flag.
1198  *
1199  * @param txDesc  The given tx descriptor.
1200  * @retval True the dma own tx descriptor, false application own tx descriptor.
1201  *
1202  */
ENET_QOS_IsTxDescriptorDmaOwn(enet_qos_tx_bd_struct_t * txDesc)1203 static inline bool ENET_QOS_IsTxDescriptorDmaOwn(enet_qos_tx_bd_struct_t *txDesc)
1204 {
1205     return ((txDesc->controlStat & ENET_QOS_TXDESCRIP_RD_OWN_MASK) != 0U) ? true : false;
1206 }
1207 
1208 /*!
1209  * @brief Setup a given tx descriptor.
1210  *  This function is a low level functional API to setup or prepare
1211  *  a given tx descriptor.
1212  *
1213  * @param txDesc  The given tx descriptor.
1214  * @param buffer1  The first buffer address in the descriptor.
1215  * @param bytes1  The bytes in the fist buffer.
1216  * @param buffer2  The second buffer address in the descriptor.
1217  * @param bytes2  The bytes in the second buffer.
1218  * @param framelen  The length of the frame to be transmitted.
1219  * @param intEnable Interrupt enable flag.
1220  * @param tsEnable The timestamp enable.
1221  * @param flag The flag of this tx descriptor, @ref enet_qos_desc_flag .
1222  * @param slotNum The slot num used for AV  only.
1223  *
1224  * @note This must be called after all the ENET initialization.
1225  * And should be called when the ENET receive/transmit is required.
1226  * Transmit buffers are 'zero-copy' buffers, so the buffer must remain in
1227  * memory until the packet has been fully transmitted. The buffers
1228  * should be free or requeued in the transmit interrupt irq handler.
1229  */
1230 void ENET_QOS_SetupTxDescriptor(enet_qos_tx_bd_struct_t *txDesc,
1231                                 void *buffer1,
1232                                 uint32_t bytes1,
1233                                 void *buffer2,
1234                                 uint32_t bytes2,
1235                                 uint32_t framelen,
1236                                 bool intEnable,
1237                                 bool tsEnable,
1238                                 enet_qos_desc_flag flag,
1239                                 uint8_t slotNum);
1240 
1241 /*!
1242  * @brief Update the tx descriptor tail pointer.
1243  *  This function is a low level functional API to update the
1244  *  the tx descriptor tail.
1245  *  This is called after you setup a new tx descriptor to update
1246  *  the tail pointer to make the new descriptor accessible by DMA.
1247  *
1248  * @param base    ENET peripheral base address.
1249  * @param channel  The tx DMA channel.
1250  * @param txDescTailAddrAlign  The new tx tail pointer address.
1251  *
1252  */
ENET_QOS_UpdateTxDescriptorTail(ENET_QOS_Type * base,uint8_t channel,uint32_t txDescTailAddrAlign)1253 static inline void ENET_QOS_UpdateTxDescriptorTail(ENET_QOS_Type *base, uint8_t channel, uint32_t txDescTailAddrAlign)
1254 {
1255     base->DMA_CH[channel].DMA_CHX_TXDESC_TAIL_PTR = txDescTailAddrAlign & ~ENET_QOS_ADDR_ALIGNMENT;
1256 }
1257 
1258 /*!
1259  * @brief Update the rx descriptor tail pointer.
1260  *  This function is a low level functional API to update the
1261  *  the rx descriptor tail.
1262  *  This is called after you setup a new rx descriptor to update
1263  *  the tail pointer to make the new descriptor accessible by DMA
1264  *  and to anouse the rx poll command for DMA.
1265  *
1266  * @param base    ENET peripheral base address.
1267  * @param channel  The rx DMA channel.
1268  * @param rxDescTailAddrAlign  The new rx tail pointer address.
1269  *
1270  */
ENET_QOS_UpdateRxDescriptorTail(ENET_QOS_Type * base,uint8_t channel,uint32_t rxDescTailAddrAlign)1271 static inline void ENET_QOS_UpdateRxDescriptorTail(ENET_QOS_Type *base, uint8_t channel, uint32_t rxDescTailAddrAlign)
1272 {
1273     base->DMA_CH[channel].DMA_CHX_RXDESC_TAIL_PTR = rxDescTailAddrAlign & ~ENET_QOS_ADDR_ALIGNMENT;
1274 }
1275 
1276 /*!
1277  * @brief Gets the context in the ENET rx descriptor.
1278  *  This function is a low level functional API to get the
1279  *  the status flag from a given rx descriptor.
1280  *
1281  * @param rxDesc  The given rx descriptor.
1282  * @retval The RDES3 regions for write-back format rx buffer descriptor.
1283  *
1284  * @note This must be called after all the ENET initialization.
1285  * And should be called when the ENET receive/transmit is required.
1286  */
ENET_QOS_GetRxDescriptor(enet_qos_rx_bd_struct_t * rxDesc)1287 static inline uint32_t ENET_QOS_GetRxDescriptor(enet_qos_rx_bd_struct_t *rxDesc)
1288 {
1289     assert(rxDesc != NULL);
1290 
1291     return rxDesc->control;
1292 }
1293 /*!
1294  * @brief Updates the buffers and the own status for a given rx descriptor.
1295  *  This function is a low level functional API to Updates the
1296  *  buffers and the own status for a given rx descriptor.
1297  *
1298  * @param rxDesc  The given rx descriptor.
1299  * @param buffer1  The first buffer address in the descriptor.
1300  * @param buffer2  The second buffer address in the descriptor.
1301  * @param intEnable Interrupt enable flag.
1302  * @param doubleBuffEnable The double buffer enable flag.
1303  *
1304  * @note This must be called after all the ENET initialization.
1305  * And should be called when the ENET receive/transmit is required.
1306  */
1307 void ENET_QOS_UpdateRxDescriptor(
1308     enet_qos_rx_bd_struct_t *rxDesc, void *buffer1, void *buffer2, bool intEnable, bool doubleBuffEnable);
1309 
1310 /*!
1311  * @brief Configure flexible rx parser.
1312  *
1313  * This function is used to configure the flexible rx parser table.
1314  *
1315  * @param base  ENET peripheral base address..
1316  * @param rxpConfig The rx parser configuration pointer.
1317  * @param entryCount The rx parser entry count.
1318  * @retval kStatus_Success Configure rx parser success.
1319  * @retval kStatus_ENET_QOS_Timeout Poll status flag timeout.
1320  */
1321 status_t ENET_QOS_ConfigureRxParser(ENET_QOS_Type *base, enet_qos_rxp_config_t *rxpConfig, uint16_t entryCount);
1322 
1323 /*!
1324  * @brief Read flexible rx parser configuration at specified index.
1325  *
1326  * This function is used to read flexible rx parser configuration at specified index.
1327  *
1328  * @param base  ENET peripheral base address..
1329  * @param rxpConfig The rx parser configuration pointer.
1330  * @param entryIndex The rx parser entry index to read, start from 0.
1331  * @retval kStatus_Success Configure rx parser success.
1332  * @retval kStatus_ENET_QOS_Timeout Poll status flag timeout.
1333  */
1334 status_t ENET_QOS_ReadRxParser(ENET_QOS_Type *base, enet_qos_rxp_config_t *rxpConfig, uint16_t entryIndex);
1335 
1336 /*!
1337  * @brief Program Gate Control List.
1338  *
1339  * This function is used to program the Enhanced Scheduled Transmisson. (IEEE802.1Qbv)
1340  *
1341  * @param base  ENET peripheral base address..
1342  * @param gcl Pointer to the Gate Control List structure.
1343  * @param ptpClk_Hz frequency of the PTP clock.
1344  */
1345 status_t ENET_QOS_EstProgramGcl(ENET_QOS_Type *base, enet_qos_est_gcl_t *gcl, uint32_t ptpClk_Hz);
1346 
1347 /*!
1348  * @brief Read Gate Control List.
1349  *
1350  * This function is used to read the Enhanced Scheduled Transmisson list. (IEEE802.1Qbv)
1351  *
1352  * @param base  ENET peripheral base address..
1353  * @param gcl Pointer to the Gate Control List structure.
1354  * @param listLen length of the provided opList array in gcl structure.
1355  * @param hwList Boolean if True read HW list, false read SW list.
1356  */
1357 status_t ENET_QOS_EstReadGcl(ENET_QOS_Type *base, enet_qos_est_gcl_t *gcl, uint32_t listLen, bool hwList);
1358 
1359 /*!
1360  * @brief Enable Frame Preemption.
1361  *
1362  * This function is used to enable frame preemption. (IEEE802.1Qbu)
1363  *
1364  * @param base  ENET peripheral base address..
1365  */
ENET_QOS_FpeEnable(ENET_QOS_Type * base)1366 static inline void ENET_QOS_FpeEnable(ENET_QOS_Type *base)
1367 {
1368     base->MAC_FPE_CTRL_STS |= ENET_QOS_MAC_FPE_CTRL_STS_EFPE_MASK;
1369 }
1370 
1371 /*!
1372  * @brief Disable Frame Preemption.
1373  *
1374  * This function is used to disable frame preemption. (IEEE802.1Qbu)
1375  *
1376  * @param base  ENET peripheral base address..
1377  */
ENET_QOS_FpeDisable(ENET_QOS_Type * base)1378 static inline void ENET_QOS_FpeDisable(ENET_QOS_Type *base)
1379 {
1380     base->MAC_FPE_CTRL_STS &= ~ENET_QOS_MAC_FPE_CTRL_STS_EFPE_MASK;
1381 }
1382 
1383 /*!
1384  * @brief Configure preemptable transmit queues.
1385  *
1386  * This function is used to configure the preemptable queues. (IEEE802.1Qbu)
1387  *
1388  * @param base  ENET peripheral base address..
1389  * @param queueMask  bitmask representing queues to set in preemptable mode.
1390  *                   The N-th bit represents the queue N.
1391  */
ENET_QOS_FpeConfigPreemptable(ENET_QOS_Type * base,uint8_t queueMask)1392 static inline void ENET_QOS_FpeConfigPreemptable(ENET_QOS_Type *base, uint8_t queueMask)
1393 {
1394     uint32_t control;
1395 
1396     control = base->MTL_FPE_CTRL_STS & ~ENET_QOS_MTL_FPE_CTRL_STS_PEC_MASK;
1397     control |= ENET_QOS_MTL_FPE_CTRL_STS_PEC(queueMask);
1398     base->MTL_FPE_CTRL_STS = control;
1399 }
1400 
1401 /*!
1402  * @brief Sets the ENET AVB feature.
1403  *
1404  * ENET_QOS AVB feature configuration, set transmit bandwidth.
1405  * This API is called when the AVB feature is required.
1406  *
1407  * @param base ENET_QOS peripheral base address.
1408  * @param config The ENET_QOS AVB feature configuration structure.
1409  * @param queueIndex ENET_QOS queue index.
1410  */
1411 void ENET_QOS_AVBConfigure(ENET_QOS_Type *base, const enet_qos_cbs_config_t *config, uint8_t queueIndex);
1412 
1413 /*!
1414  * @brief Gets statistical data in transfer.
1415  *
1416  * @param base  ENET_QOS peripheral base address.
1417  * @param statistics The statistics structure pointer.
1418  */
1419 void ENET_QOS_GetStatistics(ENET_QOS_Type *base, enet_qos_transfer_stats_t *statistics);
1420 
1421 /* @} */
1422 
1423 /*!
1424  * @name Transactional operation
1425  * @{
1426  */
1427 
1428 /*!
1429  * @brief Create ENET Handler
1430  *
1431  * This is a transactional API and it's provided to store all data which are needed
1432  * during the whole transactional process. This API should not be used when you use
1433  * functional APIs to do data tx/rx. This is function will store many data/flag for
1434  * transactional use, so all configure API such as ENET_QOS_Init(), ENET_QOS_DescriptorInit(),
1435  * ENET_QOS_EnableInterrupts() etc.
1436  *
1437  * @note as our transactional transmit API use the zero-copy transmit buffer.
1438  * so there are two thing we emphasize here:
1439  *  1. tx buffer free/requeue for application should be done in the tx
1440  *  interrupt handler. Please set callback: kENET_QOS_TxIntEvent with tx buffer free/requeue
1441  *  process APIs.
1442  *  2. the tx interrupt is forced to open.
1443  *
1444  * @param base  ENET peripheral base address.
1445  * @param handle ENET handler.
1446  * @param config ENET configuration.
1447  * @param bufferConfig ENET buffer configuration.
1448  * @param callback The callback function.
1449  * @param userData The application data.
1450  */
1451 void ENET_QOS_CreateHandler(ENET_QOS_Type *base,
1452                             enet_qos_handle_t *handle,
1453                             enet_qos_config_t *config,
1454                             enet_qos_buffer_config_t *bufferConfig,
1455                             enet_qos_callback_t callback,
1456                             void *userData);
1457 
1458 /*!
1459  * @brief Gets the size of the read frame.
1460  * This function gets a received frame size from the ENET buffer descriptors.
1461  * @note The FCS of the frame is automatically removed by MAC and the size is the length without the FCS.
1462  * After calling @ref ENET_QOS_GetRxFrameSize, @ref ENET_QOS_ReadFrame() should be called to update the
1463  * receive buffers If the result is not "kStatus_ENET_QOS_RxFrameEmpty".
1464  *
1465  * @param base  ENET peripheral base address.
1466  * @param handle The ENET handler structure. This is the same handler pointer used in the ENET_QOS_Init.
1467  * @param length The length of the valid frame received.
1468  * @param channel The DMAC channel for the rx.
1469  * @retval kStatus_ENET_QOS_RxFrameEmpty No frame received. Should not call ENET_QOS_ReadFrame to read frame.
1470  * @retval kStatus_ENET_QOS_RxFrameError Data error happens. @ref ENET_QOS_ReadFrame should be called with NULL data
1471  *         and NULL length to update the receive buffers.
1472  * @retval kStatus_Success Receive a frame Successfully then the @ref ENET_QOS_ReadFrame
1473  *         should be called with the right data buffer and the captured data length input.
1474  */
1475 status_t ENET_QOS_GetRxFrameSize(ENET_QOS_Type *base, enet_qos_handle_t *handle, uint32_t *length, uint8_t channel);
1476 
1477 /*!
1478  * @brief Reads a frame from the ENET device.
1479  * This function reads a frame from the ENET DMA descriptors.
1480  * The ENET_QOS_GetRxFrameSize should be used to get the size of the prepared data buffer.
1481  * For example use rx dma channel 0:
1482  * @code
1483  *       uint32_t length;
1484  *       enet_qos_handle_t g_handle;
1485  *       status = ENET_QOS_GetRxFrameSize(&g_handle, &length, 0);
1486  *       if (length != 0)
1487  *       {
1488  *           uint8_t *data = memory allocate interface;
1489  *           if (!data)
1490  *           {
1491  *               ENET_QOS_ReadFrame(ENET, &g_handle, NULL, 0, 0);
1492  *           }
1493  *           else
1494  *           {
1495  *              status = ENET_QOS_ReadFrame(ENET, &g_handle, data, length, 0);
1496  *           }
1497  *       }
1498  *       else if (status == kStatus_ENET_QOS_RxFrameError)
1499  *       {
1500  *           ENET_QOS_ReadFrame(ENET, &g_handle, NULL, 0, 0);
1501  *       }
1502  * @endcode
1503  * @param base  ENET peripheral base address.
1504  * @param handle The ENET handler structure. This is the same handler pointer used in the ENET_QOS_Init.
1505  * @param data The data buffer provided by user to store the frame which memory size should be at least "length".
1506  * @param length The size of the data buffer which is still the length of the received frame.
1507  * @param channel The rx DMA channel. shall not be larger than 2.
1508  * @param ts     Pointer to the structure @ref enet_qos_ptp_time_t to save frame timestamp.
1509  * @return The execute status, successful or failure.
1510  */
1511 status_t ENET_QOS_ReadFrame(ENET_QOS_Type *base,
1512                             enet_qos_handle_t *handle,
1513                             uint8_t *data,
1514                             uint32_t length,
1515                             uint8_t channel,
1516                             enet_qos_ptp_time_t *ts);
1517 
1518 /*!
1519  * @brief Transmits an ENET frame.
1520  * @note The CRC is automatically appended to the data. Input the data
1521  * to send without the CRC.
1522  *
1523  * @param base  ENET peripheral base address.
1524  * @param handle The ENET handler pointer. This is the same handler pointer used in the ENET_QOS_Init.
1525  * @param data The data buffer provided by user to be send.
1526  * @param length The length of the data to be send.
1527  * @param channel Channel to send the frame, same with queue index.
1528  * @param isNeedTs True to enable timestamp save for the frame
1529  * @param context pointer to user context to be kept in the tx dirty frame information.
1530  * @retval kStatus_Success  Send frame succeed.
1531  * @retval kStatus_ENET_QOS_TxFrameBusy  Transmit buffer descriptor is busy under transmission.
1532  *         The transmit busy happens when the data send rate is over the MAC capacity.
1533  *         The waiting mechanism is recommended to be added after each call return with
1534  *         kStatus_ENET_QOS_TxFrameBusy.
1535  */
1536 status_t ENET_QOS_SendFrame(ENET_QOS_Type *base,
1537                             enet_qos_handle_t *handle,
1538                             uint8_t *data,
1539                             uint32_t length,
1540                             uint8_t channel,
1541                             bool isNeedTs,
1542                             void *context);
1543 
1544 /*!
1545  * @brief Reclaim tx descriptors.
1546  *  This function is used to update the tx descriptor status and
1547  *  store the tx timestamp when the 1588 feature is enabled.
1548  *  This is called by the transmit interrupt IRQ handler after the
1549  *  complete of a frame transmission.
1550  *
1551  * @param base    ENET peripheral base address.
1552  * @param handle The ENET handler pointer. This is the same handler pointer used in the ENET_QOS_Init.
1553  * @param channel  The tx DMA channel.
1554  *
1555  */
1556 void ENET_QOS_ReclaimTxDescriptor(ENET_QOS_Type *base, enet_qos_handle_t *handle, uint8_t channel);
1557 
1558 /*!
1559  * @brief The ENET IRQ handler.
1560  *
1561  * @param base  ENET peripheral base address.
1562  * @param handle The ENET handler pointer.
1563  */
1564 void ENET_QOS_CommonIRQHandler(ENET_QOS_Type *base, enet_qos_handle_t *handle);
1565 
1566 /*!
1567  * @brief Set the second level IRQ handler, allow user to overwrite the default
1568  * second level weak IRQ handler.
1569  *
1570  * @param base  ENET peripheral base address.
1571  * @param ISRHandler  The handler to install.
1572  */
1573 void ENET_QOS_SetISRHandler(ENET_QOS_Type *base, enet_qos_isr_t ISRHandler);
1574 
1575 /* @} */
1576 /*!
1577  * @name ENET Enhanced function operation
1578  * @{
1579  */
1580 
1581 /*!
1582  * @brief Correct the ENET PTP 1588 timer in coarse method.
1583  *
1584  * @param base  ENET peripheral base address.
1585  * @param operation The system time operation, refer to "enet_qos_systime_op"
1586  * @param second The correction second.
1587  * @param nanosecond The correction nanosecond.
1588  */
1589 status_t ENET_QOS_Ptp1588CorrectTimerInCoarse(ENET_QOS_Type *base,
1590                                               enet_qos_systime_op operation,
1591                                               uint32_t second,
1592                                               uint32_t nanosecond);
1593 
1594 /*!
1595  * @brief Correct the ENET PTP 1588 timer in fine method.
1596  *
1597  *
1598  * @param base  ENET peripheral base address.
1599  * @param addend The addend value to be set in the fine method
1600  * @note Should take refer to the chapter "System time correction" and
1601  * see the description for the "fine correction method".
1602  */
1603 status_t ENET_QOS_Ptp1588CorrectTimerInFine(ENET_QOS_Type *base, uint32_t addend);
1604 
1605 /*!
1606  * @brief Get the ENET Time stamp current addend value.
1607  *
1608  * @param base  ENET peripheral base address.
1609  * @return The addend value.
1610  */
ENET_QOS_Ptp1588GetAddend(ENET_QOS_Type * base)1611 static inline uint32_t ENET_QOS_Ptp1588GetAddend(ENET_QOS_Type *base)
1612 {
1613     return base->MAC_TIMESTAMP_ADDEND;
1614 }
1615 
1616 /*!
1617  * @brief Gets the current ENET time from the PTP 1588 timer without IRQ disable.
1618  *
1619  * @param base  ENET peripheral base address.
1620  * @param second The PTP 1588 system timer second.
1621  * @param nanosecond The PTP 1588 system timer nanosecond.
1622  * For the unit of the nanosecond is 1ns. so the nanosecond is the real nanosecond.
1623  */
1624 void ENET_QOS_Ptp1588GetTimerNoIRQDisable(ENET_QOS_Type *base, uint64_t *second, uint32_t *nanosecond);
1625 
1626 /*!
1627  * @brief Sets the ENET PTP 1588 PPS control.
1628  * All channels operate in flexible PPS output mode.
1629  *
1630  * @param base  ENET peripheral base address.
1631  * @param instance The ENET QOS PTP PPS instance.
1632  * @param trgtMode The target time register mode.
1633  * @param cmd The target flexible PPS output control command.
1634  */
ENET_Ptp1588PpsControl(ENET_QOS_Type * base,enet_qos_ptp_pps_instance_t instance,enet_qos_ptp_pps_trgt_mode_t trgtMode,enet_qos_ptp_pps_cmd_t cmd)1635 static inline status_t ENET_Ptp1588PpsControl(ENET_QOS_Type *base,
1636                                               enet_qos_ptp_pps_instance_t instance,
1637                                               enet_qos_ptp_pps_trgt_mode_t trgtMode,
1638                                               enet_qos_ptp_pps_cmd_t cmd)
1639 {
1640     uint32_t reg        = 0UL;
1641     uint8_t shift       = (uint8_t)instance * 8U;
1642     uint32_t pps_config = ENET_QOS_MAC_PPS_CONTROL_TRGTMODSEL0((uint32_t)trgtMode) |
1643                           ENET_QOS_MAC_PPS_CONTROL_PPSCTRL_PPSCMD((uint32_t)cmd);
1644 
1645     reg = base->MAC_PPS_CONTROL;
1646 
1647     /* Make sure CMD field is all zero */
1648     if ((reg & (0xFUL << shift)) != 0UL)
1649     {
1650         return kStatus_ENET_QOS_PpsBusy;
1651     }
1652 
1653     reg &= ~(0xFFUL << shift);
1654     reg |= (pps_config << shift) | ENET_QOS_MAC_PPS_CONTROL_PPSEN0(1U);
1655 
1656     base->MAC_PPS_CONTROL = reg;
1657 
1658     return kStatus_Success;
1659 }
1660 
1661 /*!
1662  * @brief Sets the ENET OQS PTP 1588 PPS target time registers.
1663  *
1664  * @param base  ENET QOS peripheral base address.
1665  * @param instance The ENET QOS PTP PPS instance.
1666  * @param seconds The target seconds.
1667  * @param nanoseconds The target nanoseconds.
1668  */
1669 status_t ENET_QOS_Ptp1588PpsSetTrgtTime(ENET_QOS_Type *base,
1670                                         enet_qos_ptp_pps_instance_t instance,
1671                                         uint32_t seconds,
1672                                         uint32_t nanoseconds);
1673 
1674 /*!
1675  * @brief Sets the ENET OQS PTP 1588 PPS output signal interval
1676  *
1677  * @param base  ENET QOS peripheral base address.
1678  * @param instance The ENET QOS PTP PPS instance.
1679  * @param width Signal Width. It is stored in terms of number of
1680  * units of sub-second increment value. The width value must be
1681  * lesser than interval value.
1682  */
ENET_QOS_Ptp1588PpsSetWidth(ENET_QOS_Type * base,enet_qos_ptp_pps_instance_t instance,uint32_t width)1683 static inline void ENET_QOS_Ptp1588PpsSetWidth(ENET_QOS_Type *base,
1684                                                enet_qos_ptp_pps_instance_t instance,
1685                                                uint32_t width)
1686 {
1687     uint32_t *mac_pps_width;
1688 
1689     mac_pps_width = (uint32_t *)((uint32_t)&base->MAC_PPS0_WIDTH + 0x10U * (uint32_t)instance);
1690 
1691     *mac_pps_width = ENET_QOS_MAC_PPS0_WIDTH_PPSWIDTH0(width);
1692 }
1693 
1694 /*!
1695  * @brief Sets the ENET OQS PTP 1588 PPS output signal width
1696  *
1697  * @param base  ENET QOS peripheral base address.
1698  * @param instance The ENET QOS PTP PPS instance.
1699  * @param interval Signal Interval. It is stored in terms of number of
1700  * units of sub-second increment value.
1701  */
ENET_QOS_Ptp1588PpsSetInterval(ENET_QOS_Type * base,enet_qos_ptp_pps_instance_t instance,uint32_t interval)1702 static inline void ENET_QOS_Ptp1588PpsSetInterval(ENET_QOS_Type *base,
1703                                                   enet_qos_ptp_pps_instance_t instance,
1704                                                   uint32_t interval)
1705 {
1706     uint32_t *mac_pps_interval;
1707 
1708     mac_pps_interval = (uint32_t *)((uint32_t)&base->MAC_PPS0_INTERVAL + 0x10U * (uint32_t)instance);
1709 
1710     *mac_pps_interval = ENET_QOS_MAC_PPS0_INTERVAL_PPSINT0(interval);
1711 }
1712 
1713 /*!
1714  * @brief Gets the current ENET time from the PTP 1588 timer.
1715  *
1716  * @param base  ENET peripheral base address.
1717  * @param second The PTP 1588 system timer second.
1718  * @param nanosecond The PTP 1588 system timer nanosecond.
1719  * For the unit of the nanosecond is 1ns.so the nanosecond is the real nanosecond.
1720  */
1721 void ENET_QOS_Ptp1588GetTimer(ENET_QOS_Type *base, uint64_t *second, uint32_t *nanosecond);
1722 
1723 /*!
1724  * @brief Gets the time stamp of the transmit frame.
1725  *
1726  * This function is used for PTP stack to get the timestamp captured by the ENET driver.
1727  *
1728  * @param handle The ENET handler pointer.This is the same state pointer used in
1729  *        ENET_QOS_Init.
1730  * @param txFrame Input parameter, pointer to @ref enet_qos_frame_info_t for saving read out frame information.
1731  * @param channel Channel for searching the tx frame.
1732  */
1733 void ENET_QOS_GetTxFrame(enet_qos_handle_t *handle, enet_qos_frame_info_t *txFrame, uint8_t channel);
1734 
1735 /*!
1736  * @brief Receives one frame in specified BD ring with zero copy.
1737  *
1738  * This function will use the user-defined allocate and free callback. Every time application gets one frame through
1739  * this function, driver will allocate new buffers for the BDs whose buffers have been taken by application.
1740  * @note This function will drop current frame and update related BDs as available for DMA if new buffers allocating
1741  * fails. Application must provide a memory pool including at least BD number + 1 buffers(+2 if enable double buffer)
1742  * to make this function work normally. If user calls this function in Rx interrupt handler, be careful that this
1743  * function makes Rx BD ready with allocating new buffer(normal) or updating current BD(out of memory). If there's
1744  * always new Rx frame input, Rx interrupt will be triggered forever. Application need to disable Rx interrupt according
1745  * to specific design in this case.
1746  *
1747  * @param base   ENET peripheral base address.
1748  * @param handle The ENET handler pointer. This is the same handler pointer used in the ENET_Init.
1749  * @param rxFrame The received frame information structure provided by user.
1750  * @param channel Channel for searching the rx frame.
1751  * @retval kStatus_Success  Succeed to get one frame and allocate new memory for Rx buffer.
1752  * @retval kStatus_ENET_QOS_RxFrameEmpty  There's no Rx frame in the BD.
1753  * @retval kStatus_ENET_QOS_RxFrameError  There's issue in this receiving.
1754  * @retval kStatus_ENET_QOS_RxFrameDrop  There's no new buffer memory for BD, drop this frame.
1755  */
1756 status_t ENET_QOS_GetRxFrame(ENET_QOS_Type *base,
1757                              enet_qos_handle_t *handle,
1758                              enet_qos_rx_frame_struct_t *rxFrame,
1759                              uint8_t channel);
1760 /* @} */
1761 
1762 #if defined(__cplusplus)
1763 }
1764 #endif
1765 
1766 /*! @}*/
1767 
1768 #endif /* _FSL_ENET_QOS_H_ */
1769