2 * Copyright (c) 2013-2020 ARM Limited. All rights reserved.
4 * SPDX-License-Identifier: Apache-2.0
6 * Licensed under the Apache License, Version 2.0 (the License); you may
7 * not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an AS IS BASIS, WITHOUT
14 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
18 * $Date: 24. January 2020
21 * Project: Ethernet MAC (Media Access Control) Driver definitions
26 * Removed volatile from ARM_ETH_LINK_INFO
28 * Added ARM_ETH_MAC_SLEEP Control
30 * Changed MAC Address handling:
31 * moved from ARM_ETH_MAC_Initialize
32 * to new functions ARM_ETH_MAC_GetMacAddress and ARM_ETH_MAC_SetMacAddress
33 * Replaced ARM_ETH_MAC_SetMulticastAddr function with ARM_ETH_MAC_SetAddressFilter
34 * Extended ARM_ETH_MAC_SendFrame function with flags
35 * Added ARM_ETH_MAC_Control function:
36 * more control options (Broadcast, Multicast, Checksum offload, VLAN, ...)
37 * replaces ARM_ETH_MAC_SetMode
38 * replaces ARM_ETH_MAC_EnableTx, ARM_ETH_MAC_EnableRx
39 * Added optional event on transmitted frame
40 * Added support for PTP (Precision Time Protocol) through new functions:
41 * ARM_ETH_MAC_ControlTimer
42 * ARM_ETH_MAC_GetRxFrameTime
43 * ARM_ETH_MAC_GetTxFrameTime
44 * Changed prefix ARM_DRV -> ARM_DRIVER
45 * Changed return values of some functions to int32_t
47 * Name space prefix ARM_ added
49 * Renamed capabilities items for checksum offload
54 #ifndef DRIVER_ETH_MAC_H_
55 #define DRIVER_ETH_MAC_H_
62 #include "Driver_ETH.h"
64 #define ARM_ETH_MAC_API_VERSION ARM_DRIVER_VERSION_MAJOR_MINOR(2,2) /* API version */
67 #define _ARM_Driver_ETH_MAC_(n) Driver_ETH_MAC##n
68 #define ARM_Driver_ETH_MAC_(n) _ARM_Driver_ETH_MAC_(n)
71 /****** Ethernet MAC Control Codes *****/
73 #define ARM_ETH_MAC_CONFIGURE (0x01UL) ///< Configure MAC; arg = configuration
74 #define ARM_ETH_MAC_CONTROL_TX (0x02UL) ///< Transmitter; arg: 0=disabled (default), 1=enabled
75 #define ARM_ETH_MAC_CONTROL_RX (0x03UL) ///< Receiver; arg: 0=disabled (default), 1=enabled
76 #define ARM_ETH_MAC_FLUSH (0x04UL) ///< Flush buffer; arg = ARM_ETH_MAC_FLUSH_...
77 #define ARM_ETH_MAC_SLEEP (0x05UL) ///< Sleep mode; arg: 1=enter and wait for Magic packet, 0=exit
78 #define ARM_ETH_MAC_VLAN_FILTER (0x06UL) ///< VLAN Filter for received frames; arg15..0: VLAN Tag; arg16: optional ARM_ETH_MAC_VLAN_FILTER_ID_ONLY; 0=disabled (default)
80 /*----- Ethernet MAC Configuration -----*/
81 #define ARM_ETH_MAC_SPEED_Pos 0
82 #define ARM_ETH_MAC_SPEED_Msk (3UL << ARM_ETH_MAC_SPEED_Pos)
83 #define ARM_ETH_MAC_SPEED_10M (ARM_ETH_SPEED_10M << ARM_ETH_MAC_SPEED_Pos) ///< 10 Mbps link speed
84 #define ARM_ETH_MAC_SPEED_100M (ARM_ETH_SPEED_100M << ARM_ETH_MAC_SPEED_Pos) ///< 100 Mbps link speed
85 #define ARM_ETH_MAC_SPEED_1G (ARM_ETH_SPEED_1G << ARM_ETH_MAC_SPEED_Pos) ///< 1 Gpbs link speed
86 #define ARM_ETH_MAC_DUPLEX_Pos 2
87 #define ARM_ETH_MAC_DUPLEX_Msk (1UL << ARM_ETH_MAC_DUPLEX_Pos)
88 #define ARM_ETH_MAC_DUPLEX_HALF (ARM_ETH_DUPLEX_HALF << ARM_ETH_MAC_DUPLEX_Pos) ///< Half duplex link
89 #define ARM_ETH_MAC_DUPLEX_FULL (ARM_ETH_DUPLEX_FULL << ARM_ETH_MAC_DUPLEX_Pos) ///< Full duplex link
90 #define ARM_ETH_MAC_LOOPBACK (1UL << 4) ///< Loop-back test mode
91 #define ARM_ETH_MAC_CHECKSUM_OFFLOAD_RX (1UL << 5) ///< Receiver Checksum offload
92 #define ARM_ETH_MAC_CHECKSUM_OFFLOAD_TX (1UL << 6) ///< Transmitter Checksum offload
93 #define ARM_ETH_MAC_ADDRESS_BROADCAST (1UL << 7) ///< Accept frames with Broadcast address
94 #define ARM_ETH_MAC_ADDRESS_MULTICAST (1UL << 8) ///< Accept frames with any Multicast address
95 #define ARM_ETH_MAC_ADDRESS_ALL (1UL << 9) ///< Accept frames with any address (Promiscuous Mode)
97 /*----- Ethernet MAC Flush Flags -----*/
98 #define ARM_ETH_MAC_FLUSH_RX (1UL << 0) ///< Flush Receive buffer
99 #define ARM_ETH_MAC_FLUSH_TX (1UL << 1) ///< Flush Transmit buffer
101 /*----- Ethernet MAC VLAN Filter Flag -----*/
102 #define ARM_ETH_MAC_VLAN_FILTER_ID_ONLY (1UL << 16) ///< Compare only the VLAN Identifier (12-bit)
105 /****** Ethernet MAC Frame Transmit Flags *****/
106 #define ARM_ETH_MAC_TX_FRAME_FRAGMENT (1UL << 0) ///< Indicate frame fragment
107 #define ARM_ETH_MAC_TX_FRAME_EVENT (1UL << 1) ///< Generate event when frame is transmitted
108 #define ARM_ETH_MAC_TX_FRAME_TIMESTAMP (1UL << 2) ///< Capture frame time stamp
111 /****** Ethernet MAC Timer Control Codes *****/
112 #define ARM_ETH_MAC_TIMER_GET_TIME (0x01UL) ///< Get current time
113 #define ARM_ETH_MAC_TIMER_SET_TIME (0x02UL) ///< Set new time
114 #define ARM_ETH_MAC_TIMER_INC_TIME (0x03UL) ///< Increment current time
115 #define ARM_ETH_MAC_TIMER_DEC_TIME (0x04UL) ///< Decrement current time
116 #define ARM_ETH_MAC_TIMER_SET_ALARM (0x05UL) ///< Set alarm time
117 #define ARM_ETH_MAC_TIMER_ADJUST_CLOCK (0x06UL) ///< Adjust clock frequency; time->ns: correction factor * 2^31
121 \brief Ethernet MAC Time
123 typedef struct _ARM_ETH_MAC_TIME {
124 uint32_t ns; ///< Nano seconds
125 uint32_t sec; ///< Seconds
129 /****** Ethernet MAC Event *****/
130 #define ARM_ETH_MAC_EVENT_RX_FRAME (1UL << 0) ///< Frame Received
131 #define ARM_ETH_MAC_EVENT_TX_FRAME (1UL << 1) ///< Frame Transmitted
132 #define ARM_ETH_MAC_EVENT_WAKEUP (1UL << 2) ///< Wake-up (on Magic Packet)
133 #define ARM_ETH_MAC_EVENT_TIMER_ALARM (1UL << 3) ///< Timer Alarm
136 // Function documentation
138 \fn ARM_DRIVER_VERSION ARM_ETH_MAC_GetVersion (void)
139 \brief Get driver version.
140 \return \ref ARM_DRIVER_VERSION
143 \fn ARM_ETH_MAC_CAPABILITIES ARM_ETH_MAC_GetCapabilities (void)
144 \brief Get driver capabilities.
145 \return \ref ARM_ETH_MAC_CAPABILITIES
148 \fn int32_t ARM_ETH_MAC_Initialize (ARM_ETH_MAC_SignalEvent_t cb_event)
149 \brief Initialize Ethernet MAC Device.
150 \param[in] cb_event Pointer to \ref ARM_ETH_MAC_SignalEvent
151 \return \ref execution_status
154 \fn int32_t ARM_ETH_MAC_Uninitialize (void)
155 \brief De-initialize Ethernet MAC Device.
156 \return \ref execution_status
159 \fn int32_t ARM_ETH_MAC_PowerControl (ARM_POWER_STATE state)
160 \brief Control Ethernet MAC Device Power.
161 \param[in] state Power state
162 \return \ref execution_status
165 \fn int32_t ARM_ETH_MAC_GetMacAddress (ARM_ETH_MAC_ADDR *ptr_addr)
166 \brief Get Ethernet MAC Address.
167 \param[in] ptr_addr Pointer to address
168 \return \ref execution_status
171 \fn int32_t ARM_ETH_MAC_SetMacAddress (const ARM_ETH_MAC_ADDR *ptr_addr)
172 \brief Set Ethernet MAC Address.
173 \param[in] ptr_addr Pointer to address
174 \return \ref execution_status
177 \fn int32_t ARM_ETH_MAC_SetAddressFilter (const ARM_ETH_MAC_ADDR *ptr_addr,
179 \brief Configure Address Filter.
180 \param[in] ptr_addr Pointer to addresses
181 \param[in] num_addr Number of addresses to configure
182 \return \ref execution_status
185 \fn int32_t ARM_ETH_MAC_SendFrame (const uint8_t *frame, uint32_t len, uint32_t flags)
186 \brief Send Ethernet frame.
187 \param[in] frame Pointer to frame buffer with data to send
188 \param[in] len Frame buffer length in bytes
189 \param[in] flags Frame transmit flags (see ARM_ETH_MAC_TX_FRAME_...)
190 \return \ref execution_status
193 \fn int32_t ARM_ETH_MAC_ReadFrame (uint8_t *frame, uint32_t len)
194 \brief Read data of received Ethernet frame.
195 \param[in] frame Pointer to frame buffer for data to read into
196 \param[in] len Frame buffer length in bytes
197 \return number of data bytes read or execution status
198 - value >= 0: number of data bytes read
199 - value < 0: error occurred, value is execution status as defined with \ref execution_status
202 \fn uint32_t ARM_ETH_MAC_GetRxFrameSize (void)
203 \brief Get size of received Ethernet frame.
204 \return number of bytes in received frame
207 \fn int32_t ARM_ETH_MAC_GetRxFrameTime (ARM_ETH_MAC_TIME *time)
208 \brief Get time of received Ethernet frame.
209 \param[in] time Pointer to time structure for data to read into
210 \return \ref execution_status
213 \fn int32_t ARM_ETH_MAC_GetTxFrameTime (ARM_ETH_MAC_TIME *time)
214 \brief Get time of transmitted Ethernet frame.
215 \param[in] time Pointer to time structure for data to read into
216 \return \ref execution_status
219 \fn int32_t ARM_ETH_MAC_Control (uint32_t control, uint32_t arg)
220 \brief Control Ethernet Interface.
221 \param[in] control Operation
222 \param[in] arg Argument of operation (optional)
223 \return \ref execution_status
226 \fn int32_t ARM_ETH_MAC_ControlTimer (uint32_t control, ARM_ETH_MAC_TIME *time)
227 \brief Control Precision Timer.
228 \param[in] control Operation
229 \param[in] time Pointer to time structure
230 \return \ref execution_status
233 \fn int32_t ARM_ETH_MAC_PHY_Read (uint8_t phy_addr, uint8_t reg_addr, uint16_t *data)
234 \brief Read Ethernet PHY Register through Management Interface.
235 \param[in] phy_addr 5-bit device address
236 \param[in] reg_addr 5-bit register address
237 \param[out] data Pointer where the result is written to
238 \return \ref execution_status
241 \fn int32_t ARM_ETH_MAC_PHY_Write (uint8_t phy_addr, uint8_t reg_addr, uint16_t data)
242 \brief Write Ethernet PHY Register through Management Interface.
243 \param[in] phy_addr 5-bit device address
244 \param[in] reg_addr 5-bit register address
245 \param[in] data 16-bit data to write
246 \return \ref execution_status
250 \fn void ARM_ETH_MAC_SignalEvent (uint32_t event)
251 \brief Callback function that signals a Ethernet Event.
252 \param[in] event event notification mask
256 typedef void (*ARM_ETH_MAC_SignalEvent_t) (uint32_t event); ///< Pointer to \ref ARM_ETH_MAC_SignalEvent : Signal Ethernet Event.
260 \brief Ethernet MAC Capabilities
262 typedef struct _ARM_ETH_MAC_CAPABILITIES {
263 uint32_t checksum_offload_rx_ip4 : 1; ///< 1 = IPv4 header checksum verified on receive
264 uint32_t checksum_offload_rx_ip6 : 1; ///< 1 = IPv6 checksum verification supported on receive
265 uint32_t checksum_offload_rx_udp : 1; ///< 1 = UDP payload checksum verified on receive
266 uint32_t checksum_offload_rx_tcp : 1; ///< 1 = TCP payload checksum verified on receive
267 uint32_t checksum_offload_rx_icmp : 1; ///< 1 = ICMP payload checksum verified on receive
268 uint32_t checksum_offload_tx_ip4 : 1; ///< 1 = IPv4 header checksum generated on transmit
269 uint32_t checksum_offload_tx_ip6 : 1; ///< 1 = IPv6 checksum generation supported on transmit
270 uint32_t checksum_offload_tx_udp : 1; ///< 1 = UDP payload checksum generated on transmit
271 uint32_t checksum_offload_tx_tcp : 1; ///< 1 = TCP payload checksum generated on transmit
272 uint32_t checksum_offload_tx_icmp : 1; ///< 1 = ICMP payload checksum generated on transmit
273 uint32_t media_interface : 2; ///< Ethernet Media Interface type
274 uint32_t mac_address : 1; ///< 1 = driver provides initial valid MAC address
275 uint32_t event_rx_frame : 1; ///< 1 = callback event \ref ARM_ETH_MAC_EVENT_RX_FRAME generated
276 uint32_t event_tx_frame : 1; ///< 1 = callback event \ref ARM_ETH_MAC_EVENT_TX_FRAME generated
277 uint32_t event_wakeup : 1; ///< 1 = wakeup event \ref ARM_ETH_MAC_EVENT_WAKEUP generated
278 uint32_t precision_timer : 1; ///< 1 = Precision Timer supported
279 uint32_t reserved : 15; ///< Reserved (must be zero)
280 } ARM_ETH_MAC_CAPABILITIES;
284 \brief Access structure of the Ethernet MAC Driver
286 typedef struct _ARM_DRIVER_ETH_MAC {
287 ARM_DRIVER_VERSION (*GetVersion) (void); ///< Pointer to \ref ARM_ETH_MAC_GetVersion : Get driver version.
288 ARM_ETH_MAC_CAPABILITIES (*GetCapabilities) (void); ///< Pointer to \ref ARM_ETH_MAC_GetCapabilities : Get driver capabilities.
289 int32_t (*Initialize) (ARM_ETH_MAC_SignalEvent_t cb_event); ///< Pointer to \ref ARM_ETH_MAC_Initialize : Initialize Ethernet MAC Device.
290 int32_t (*Uninitialize) (void); ///< Pointer to \ref ARM_ETH_MAC_Uninitialize : De-initialize Ethernet MAC Device.
291 int32_t (*PowerControl) (ARM_POWER_STATE state); ///< Pointer to \ref ARM_ETH_MAC_PowerControl : Control Ethernet MAC Device Power.
292 int32_t (*GetMacAddress) ( ARM_ETH_MAC_ADDR *ptr_addr); ///< Pointer to \ref ARM_ETH_MAC_GetMacAddress : Get Ethernet MAC Address.
293 int32_t (*SetMacAddress) (const ARM_ETH_MAC_ADDR *ptr_addr); ///< Pointer to \ref ARM_ETH_MAC_SetMacAddress : Set Ethernet MAC Address.
294 int32_t (*SetAddressFilter)(const ARM_ETH_MAC_ADDR *ptr_addr, uint32_t num_addr); ///< Pointer to \ref ARM_ETH_MAC_SetAddressFilter : Configure Address Filter.
295 int32_t (*SendFrame) (const uint8_t *frame, uint32_t len, uint32_t flags); ///< Pointer to \ref ARM_ETH_MAC_SendFrame : Send Ethernet frame.
296 int32_t (*ReadFrame) ( uint8_t *frame, uint32_t len); ///< Pointer to \ref ARM_ETH_MAC_ReadFrame : Read data of received Ethernet frame.
297 uint32_t (*GetRxFrameSize) (void); ///< Pointer to \ref ARM_ETH_MAC_GetRxFrameSize : Get size of received Ethernet frame.
298 int32_t (*GetRxFrameTime) (ARM_ETH_MAC_TIME *time); ///< Pointer to \ref ARM_ETH_MAC_GetRxFrameTime : Get time of received Ethernet frame.
299 int32_t (*GetTxFrameTime) (ARM_ETH_MAC_TIME *time); ///< Pointer to \ref ARM_ETH_MAC_GetTxFrameTime : Get time of transmitted Ethernet frame.
300 int32_t (*ControlTimer) (uint32_t control, ARM_ETH_MAC_TIME *time); ///< Pointer to \ref ARM_ETH_MAC_ControlTimer : Control Precision Timer.
301 int32_t (*Control) (uint32_t control, uint32_t arg); ///< Pointer to \ref ARM_ETH_MAC_Control : Control Ethernet Interface.
302 int32_t (*PHY_Read) (uint8_t phy_addr, uint8_t reg_addr, uint16_t *data); ///< Pointer to \ref ARM_ETH_MAC_PHY_Read : Read Ethernet PHY Register through Management Interface.
303 int32_t (*PHY_Write) (uint8_t phy_addr, uint8_t reg_addr, uint16_t data); ///< Pointer to \ref ARM_ETH_MAC_PHY_Write : Write Ethernet PHY Register through Management Interface.
304 } const ARM_DRIVER_ETH_MAC;
310 #endif /* DRIVER_ETH_MAC_H_ */