|
| 1 | +/* |
| 2 | +* Copyright (c) 2020 - 2024 Renesas Electronics Corporation and/or its affiliates |
| 3 | +* |
| 4 | +* SPDX-License-Identifier: BSD-3-Clause |
| 5 | +*/ |
| 6 | + |
| 7 | +/*******************************************************************************************************************//** |
| 8 | + * @ingroup RENESAS_NETWORKING_INTERFACES |
| 9 | + * @defgroup ETHER_API Ethernet Interface |
| 10 | + * @brief Interface for Ethernet functions. |
| 11 | + * |
| 12 | + * @section ETHER_API_Summary Summary |
| 13 | + * The Ethernet interface provides Ethernet functionality. |
| 14 | + * The Ethernet interface supports the following features: |
| 15 | + * - Transmit/receive processing (Blocking and Non-Blocking) |
| 16 | + * - Callback function with returned event code |
| 17 | + * - Magic packet detection mode support |
| 18 | + * - Auto negotiation support |
| 19 | + * - Flow control support |
| 20 | + * - Multicast filtering support |
| 21 | + * |
| 22 | + * |
| 23 | + * @{ |
| 24 | + **********************************************************************************************************************/ |
| 25 | + |
| 26 | +#ifndef R_ETHER_API_H |
| 27 | +#define R_ETHER_API_H |
| 28 | + |
| 29 | +/*********************************************************************************************************************** |
| 30 | + * Includes |
| 31 | + **********************************************************************************************************************/ |
| 32 | + |
| 33 | +/* Register definitions, common services and error codes. */ |
| 34 | +#include "bsp_api.h" |
| 35 | +#include "r_ether_phy_api.h" |
| 36 | + |
| 37 | +/* Common macro for FSP header files. There is also a corresponding FSP_FOOTER macro at the end of this file. */ |
| 38 | +FSP_HEADER |
| 39 | + |
| 40 | +/********************************************************************************************************************** |
| 41 | + * Macro definitions |
| 42 | + **********************************************************************************************************************/ |
| 43 | + |
| 44 | +/********************************************************************************************************************** |
| 45 | + * Typedef definitions |
| 46 | + **********************************************************************************************************************/ |
| 47 | + |
| 48 | +/** Wake on LAN */ |
| 49 | +typedef enum e_ether_wake_on_lan |
| 50 | +{ |
| 51 | + ETHER_WAKE_ON_LAN_DISABLE = 0, ///< Disable Wake on LAN |
| 52 | + ETHER_WAKE_ON_LAN_ENABLE = 1, ///< Enable Wake on LAN |
| 53 | +} ether_wake_on_lan_t; |
| 54 | + |
| 55 | +/** Flow control functionality */ |
| 56 | +typedef enum e_ether_flow_control |
| 57 | +{ |
| 58 | + ETHER_FLOW_CONTROL_DISABLE = 0, ///< Disable flow control functionality |
| 59 | + ETHER_FLOW_CONTROL_ENABLE = 1, ///< Enable flow control functionality with pause frames |
| 60 | +} ether_flow_control_t; |
| 61 | + |
| 62 | +/** Multicast Filter */ |
| 63 | +typedef enum e_ether_multicast |
| 64 | +{ |
| 65 | + ETHER_MULTICAST_DISABLE = 0, ///< Disable reception of multicast frames |
| 66 | + ETHER_MULTICAST_ENABLE = 1, ///< Enable reception of multicast frames |
| 67 | +} ether_multicast_t; |
| 68 | + |
| 69 | +/** Promiscuous Mode */ |
| 70 | +typedef enum e_ether_promiscuous |
| 71 | +{ |
| 72 | + ETHER_PROMISCUOUS_DISABLE = 0, ///< Only receive packets with current MAC address, multicast, and broadcast |
| 73 | + ETHER_PROMISCUOUS_ENABLE = 1, ///< Receive all packets |
| 74 | +} ether_promiscuous_t; |
| 75 | + |
| 76 | +/** Zero copy */ |
| 77 | +typedef enum e_ether_zerocopy |
| 78 | +{ |
| 79 | + ETHER_ZEROCOPY_DISABLE = 0, ///< Disable zero copy in Read/Write function |
| 80 | + ETHER_ZEROCOPY_ENABLE = 1, ///< Enable zero copy in Read/Write function |
| 81 | +} ether_zerocopy_t; |
| 82 | + |
| 83 | +typedef enum e_ether_padding |
| 84 | +{ |
| 85 | + ETHER_PADDING_DISABLE = 0, |
| 86 | + ETHER_PADDING_1BYTE = 1, |
| 87 | + ETHER_PADDING_2BYTE = 2, |
| 88 | + ETHER_PADDING_3BYTE = 3, |
| 89 | +} ether_padding_t; |
| 90 | + |
| 91 | +#ifndef BSP_OVERRIDE_ETHER_EVENT_T |
| 92 | + |
| 93 | +/** Event code of callback function */ |
| 94 | +typedef enum e_ether_event |
| 95 | +{ |
| 96 | + ETHER_EVENT_WAKEON_LAN, ///< Magic packet detection event |
| 97 | + ETHER_EVENT_LINK_ON, ///< Link up detection event |
| 98 | + ETHER_EVENT_LINK_OFF, ///< Link down detection event |
| 99 | + ETHER_EVENT_INTERRUPT, ///< Interrupt event |
| 100 | +} ether_event_t; |
| 101 | +#endif |
| 102 | + |
| 103 | +#ifndef BSP_OVERRIDE_ETHER_CALLBACK_ARGS_T |
| 104 | + |
| 105 | +/** Callback function parameter data */ |
| 106 | +typedef struct st_ether_callback_args |
| 107 | +{ |
| 108 | + uint32_t channel; ///< Device channel number |
| 109 | + ether_event_t event; ///< Event code |
| 110 | + uint32_t status_ecsr; ///< ETHERC status register for interrupt handler |
| 111 | + uint32_t status_eesr; ///< ETHERC/EDMAC status register for interrupt handler |
| 112 | + |
| 113 | + void const * p_context; ///< Placeholder for user data. Set in @ref ether_api_t::open function in @ref ether_cfg_t. |
| 114 | +} ether_callback_args_t; |
| 115 | +#endif |
| 116 | + |
| 117 | +/** Control block. Allocate an instance specific control block to pass into the API calls. |
| 118 | + */ |
| 119 | +typedef void ether_ctrl_t; |
| 120 | + |
| 121 | +/** Configuration parameters. */ |
| 122 | +typedef struct st_ether_cfg |
| 123 | +{ |
| 124 | + uint8_t channel; ///< Channel |
| 125 | + ether_zerocopy_t zerocopy; ///< Zero copy enable or disable in Read/Write function |
| 126 | + ether_multicast_t multicast; ///< Multicast enable or disable |
| 127 | + ether_promiscuous_t promiscuous; ///< Promiscuous mode enable or disable |
| 128 | + ether_flow_control_t flow_control; ///< Flow control functionally enable or disable |
| 129 | + ether_padding_t padding; ///< Padding length inserted into the received Ethernet frame. |
| 130 | + uint32_t padding_offset; ///< Offset of the padding inserted into the received Ethernet frame. |
| 131 | + uint32_t broadcast_filter; ///< Limit of the number of broadcast frames received continuously |
| 132 | + uint8_t * p_mac_address; ///< Pointer of MAC address |
| 133 | + |
| 134 | + uint8_t num_tx_descriptors; ///< Number of transmission descriptor |
| 135 | + uint8_t num_rx_descriptors; ///< Number of receive descriptor |
| 136 | + |
| 137 | + uint8_t ** pp_ether_buffers; ///< Transmit and receive buffer |
| 138 | + |
| 139 | + uint32_t ether_buffer_size; ///< Size of transmit and receive buffer |
| 140 | + |
| 141 | + IRQn_Type irq; ///< Interrupt number |
| 142 | + uint32_t interrupt_priority; ///< Interrupt priority |
| 143 | + |
| 144 | + void (* p_callback)(ether_callback_args_t * p_args); ///< Callback provided when an ISR occurs. |
| 145 | + |
| 146 | + ether_phy_instance_t const * p_ether_phy_instance; ///< Pointer to ETHER_PHY instance |
| 147 | + |
| 148 | + /** Placeholder for user data. Passed to the user callback in ether_callback_args_t. */ |
| 149 | + void const * p_context; ///< Placeholder for user data. |
| 150 | + void const * p_extend; ///< Placeholder for user extension. |
| 151 | +} ether_cfg_t; |
| 152 | + |
| 153 | +/** Functions implemented at the HAL layer will follow this API. */ |
| 154 | +typedef struct st_ether_api |
| 155 | +{ |
| 156 | + /** Open driver. |
| 157 | + * |
| 158 | + * @param[in] p_ctrl Pointer to control structure. |
| 159 | + * @param[in] p_cfg Pointer to pin configuration structure. |
| 160 | + */ |
| 161 | + fsp_err_t (* open)(ether_ctrl_t * const p_ctrl, ether_cfg_t const * const p_cfg); |
| 162 | + |
| 163 | + /** Close driver. |
| 164 | + * |
| 165 | + * @param[in] p_ctrl Pointer to control structure. |
| 166 | + */ |
| 167 | + fsp_err_t (* close)(ether_ctrl_t * const p_ctrl); |
| 168 | + |
| 169 | + /** Read packet if data is available. |
| 170 | + * |
| 171 | + * @param[in] p_ctrl Pointer to control structure. |
| 172 | + * @param[in] p_buffer Pointer to where to store read data. |
| 173 | + * @param[in] length_bytes Number of bytes in buffer |
| 174 | + */ |
| 175 | + fsp_err_t (* read)(ether_ctrl_t * const p_ctrl, void * const p_buffer, uint32_t * const length_bytes); |
| 176 | + |
| 177 | + /** Release rx buffer from buffer pool process in zero-copy read operation. |
| 178 | + * |
| 179 | + * @param[in] p_ctrl Pointer to control structure. |
| 180 | + */ |
| 181 | + fsp_err_t (* bufferRelease)(ether_ctrl_t * const p_ctrl); |
| 182 | + |
| 183 | + /** Update the buffer pointer in the current receive descriptor. |
| 184 | + * |
| 185 | + * @param[in] p_ctrl Pointer to control structure. |
| 186 | + * @param[in] p_buffer New address to write into the rx buffer descriptor. |
| 187 | + */ |
| 188 | + fsp_err_t (* rxBufferUpdate)(ether_ctrl_t * const p_ctrl, void * const p_buffer); |
| 189 | + |
| 190 | + /** Write packet. |
| 191 | + * |
| 192 | + * @param[in] p_ctrl Pointer to control structure. |
| 193 | + * @param[in] p_buffer Pointer to data to write. |
| 194 | + * @param[in] frame_length Send ethernet frame size (without 4 bytes of CRC data size). |
| 195 | + */ |
| 196 | + fsp_err_t (* write)(ether_ctrl_t * const p_ctrl, void * const p_buffer, uint32_t const frame_length); |
| 197 | + |
| 198 | + /** Process link. |
| 199 | + * |
| 200 | + * @param[in] p_ctrl Pointer to control structure. |
| 201 | + */ |
| 202 | + fsp_err_t (* linkProcess)(ether_ctrl_t * const p_ctrl); |
| 203 | + |
| 204 | + /** Enable magic packet detection. |
| 205 | + * |
| 206 | + * @param[in] p_ctrl Pointer to control structure. |
| 207 | + */ |
| 208 | + fsp_err_t (* wakeOnLANEnable)(ether_ctrl_t * const p_ctrl); |
| 209 | + |
| 210 | + /** Get the address of the most recently sent buffer. |
| 211 | + * |
| 212 | + * @param[in] p_ctrl Pointer to control structure. |
| 213 | + * @param[out] p_buffer_address Pointer to the address of the most recently sent buffer. |
| 214 | + */ |
| 215 | + fsp_err_t (* txStatusGet)(ether_ctrl_t * const p_ctrl, void * const p_buffer_address); |
| 216 | + |
| 217 | + /** |
| 218 | + * Specify callback function and optional context pointer and working memory pointer. |
| 219 | + * |
| 220 | + * @param[in] p_ctrl Pointer to the ETHER control block. |
| 221 | + * @param[in] p_callback Callback function |
| 222 | + * @param[in] p_context Pointer to send to callback function |
| 223 | + * @param[in] p_working_memory Pointer to volatile memory where callback structure can be allocated. |
| 224 | + * Callback arguments allocated here are only valid during the callback. |
| 225 | + */ |
| 226 | + fsp_err_t (* callbackSet)(ether_ctrl_t * const p_ctrl, void (* p_callback)(ether_callback_args_t *), |
| 227 | + void const * const p_context, ether_callback_args_t * const p_callback_memory); |
| 228 | +} ether_api_t; |
| 229 | + |
| 230 | +/** This structure encompasses everything that is needed to use an instance of this interface. */ |
| 231 | +typedef struct st_ether_instance |
| 232 | +{ |
| 233 | + ether_ctrl_t * p_ctrl; ///< Pointer to the control structure for this instance |
| 234 | + ether_cfg_t const * p_cfg; ///< Pointer to the configuration structure for this instance |
| 235 | + ether_api_t const * p_api; ///< Pointer to the API structure for this instance |
| 236 | +} ether_instance_t; |
| 237 | + |
| 238 | +/*******************************************************************************************************************//** |
| 239 | + * @} (end defgroup ETHER_API) |
| 240 | + **********************************************************************************************************************/ |
| 241 | + |
| 242 | +/* Common macro for FSP header files. There is also a corresponding FSP_HEADER macro at the top of this file. */ |
| 243 | +FSP_FOOTER |
| 244 | + |
| 245 | +#endif /* R_ETHERNET_API_H */ |
0 commit comments