/* ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010, 2011 Giovanni Di Sirio. This file is part of ChibiOS/RT. ChibiOS/RT is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. ChibiOS/RT is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ /** * @file STM32/mac_lld.h * @brief STM32 low level MAC driver header. * * @addtogroup MAC * @{ */ #ifndef _MAC_LLD_H_ #define _MAC_LLD_H_ #if HAL_USE_MAC || defined(__DOXYGEN__) /*===========================================================================*/ /* Driver constants. */ /*===========================================================================*/ /** * @name RDES0 constants * @{ */ #define STM32_RDES0_OWN 0x80000000 #define STM32_RDES0_AFM 0x40000000 #define STM32_RDES0_FL_MASK 0x3FFF0000 #define STM32_RDES0_ES 0x00008000 #define STM32_RDES0_DESERR 0x00004000 #define STM32_RDES0_SAF 0x00002000 #define STM32_RDES0_LE 0x00001000 #define STM32_RDES0_OE 0x00000800 #define STM32_RDES0_VLAN 0x00000400 #define STM32_RDES0_FS 0x00000200 #define STM32_RDES0_LS 0x00000100 #define STM32_RDES0_IPHCE 0x00000080 #define STM32_RDES0_LCO 0x00000040 #define STM32_RDES0_FT 0x00000020 #define STM32_RDES0_RWT 0x00000010 #define STM32_RDES0_RE 0x00000008 #define STM32_RDES0_DE 0x00000004 #define STM32_RDES0_CE 0x00000002 #define STM32_RDES0_PCE 0x00000001 /** @} */ /** * @name RDES1 constants * @{ */ #define STM32_RDES1_DIC 0x80000000 #define STM32_RDES1_RBS2_MASK 0x1FFF0000 #define STM32_RDES1_RER 0x00008000 #define STM32_RDES1_RCH 0x00004000 #define STM32_RDES1_RBS1_MASK 0x00001FFF /** @} */ /** * @name TDES0 constants * @{ */ #define STM32_TDES0_OWN 0x80000000 #define STM32_TDES0_IC 0x40000000 #define STM32_TDES0_LS 0x20000000 #define STM32_TDES0_FS 0x10000000 #define STM32_TDES0_DC 0x08000000 #define STM32_TDES0_DP 0x04000000 #define STM32_TDES0_TTSE 0x02000000 #define STM32_TDES0_CIC_MASK 0x00C00000 #define STM32_TDES0_TER 0x00200000 #define STM32_TDES0_TCH 0x00100000 #define STM32_TDES0_TTSS 0x00020000 #define STM32_TDES0_IHE 0x00010000 #define STM32_TDES0_ES 0x00008000 #define STM32_TDES0_JT 0x00004000 #define STM32_TDES0_FF 0x00002000 #define STM32_TDES0_IPE 0x00001000 #define STM32_TDES0_LCA 0x00000800 #define STM32_TDES0_NC 0x00000400 #define STM32_TDES0_LCO 0x00000200 #define STM32_TDES0_EC 0x00000100 #define STM32_TDES0_VF 0x00000080 #define STM32_TDES0_CC_MASK 0x00000078 #define STM32_TDES0_ED 0x00000004 #define STM32_TDES0_UF 0x00000002 #define STM32_TDES0_DB 0x00000001 /** @} */ /** * @name TDES1 constants * @{ */ #define STM32_TDES1_TBS2_MASK 0x1FFF0000 #define STM32_TDES1_TBS1_MASK 0x00001FFF /** @} */ /*===========================================================================*/ /* Driver pre-compile time settings. */ /*===========================================================================*/ /** * @brief Number of available transmit buffers. */ #if !defined(MAC_TRANSMIT_BUFFERS) || defined(__DOXYGEN__) #define MAC_TRANSMIT_BUFFERS 2 #endif /** * @brief Number of available receive buffers. */ #if !defined(MAC_RECEIVE_BUFFERS) || defined(__DOXYGEN__) #define MAC_RECEIVE_BUFFERS 2 #endif /** * @brief Maximum supported frame size. */ #if !defined(MAC_BUFFERS_SIZE) || defined(__DOXYGEN__) #define MAC_BUFFERS_SIZE 1518 #endif /*===========================================================================*/ /* Derived constants and error checks. */ /*===========================================================================*/ /*===========================================================================*/ /* Driver data structures and types. */ /*===========================================================================*/ /** * @brief Type of an STM32 Ethernet receive descriptor. */ typedef struct { volatile uint32_t rdes0; volatile uint32_t rdes1; volatile uint32_t rdes2; volatile uint32_t rdes3; } stm32_eth_rx_descriptor_t; /** * @brief Type of an STM32 Ethernet transmit descriptor. */ typedef struct { volatile uint32_t tdes0; volatile uint32_t tdes1; volatile uint32_t tdes2; volatile uint32_t tdes3; } stm32_eth_tx_descriptor_t; /** * @brief Driver configuration structure. */ typedef struct { /** * @brief MAC address. */ uint8_t *mac_address; /* End of the mandatory fields.*/ } MACConfig; /** * @brief Structure representing a MAC driver. */ struct MACDriver { /** * @brief Driver state. */ macstate_t state; /** * @brief Current configuration data. */ const MACConfig *config; /** * @brief Transmit semaphore. */ Semaphore tdsem; /** * @brief Receive semaphore. */ Semaphore rdsem; #if MAC_USE_EVENTS || defined(__DOXYGEN__) /** * @brief Receive event. */ EventSource rdevent; #endif /* End of the mandatory fields.*/ }; /** * @brief Structure representing a transmit descriptor. */ typedef struct { /** * @brief Current write offset. */ size_t offset; /** * @brief Available space size. */ size_t size; /* End of the mandatory fields.*/ } MACTransmitDescriptor; /** * @brief Structure representing a receive descriptor. */ typedef struct { /** * @brief Current read offset. */ size_t offset; /** * @brief Available data size. */ size_t size; /* End of the mandatory fields.*/ } MACReceiveDescriptor; /*===========================================================================*/ /* Driver macros. */ /*===========================================================================*/ /*===========================================================================*/ /* External declarations. */ /*===========================================================================*/ #if !defined(__DOXYGEN__) extern MACDriver ETH1; #endif #ifdef __cplusplus extern "C" { #endif void mac_lld_init(void); void mac_lld_start(MACDriver *macp); void mac_lld_stop(MACDriver *macp); msg_t max_lld_get_transmit_descriptor(MACDriver *macp, MACTransmitDescriptor *tdp); size_t mac_lld_write_transmit_descriptor(MACTransmitDescriptor *tdp, uint8_t *buf, size_t size); void mac_lld_release_transmit_descriptor(MACTransmitDescriptor *tdp); msg_t max_lld_get_receive_descriptor(MACDriver *macp, MACReceiveDescriptor *rdp); size_t mac_lld_read_receive_descriptor(MACReceiveDescriptor *rdp, uint8_t *buf, size_t size); void mac_lld_release_receive_descriptor(MACReceiveDescriptor *rdp); bool_t mac_lld_poll_link_status(MACDriver *macp); #ifdef __cplusplus } #endif #endif /* HAL_USE_MAC */ #endif /* _MAC_LLD_H_ */ /** @} */