cpu_eth.h

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/*
 * SPDX-FileCopyrightText: 2016 Freie Universität Berlin
 * SPDX-FileCopyrightText: 2017 OTA keys S.A.
 * SPDX-License-Identifier: LGPL-2.1-only
 */
 
#pragma once

 
#include <stdint.h>
 
#include "periph/cpu_gpio.h"
 
#ifdef __cplusplus
extern "C" {
#endif

typedef enum {
    MII  = 18,                  
    RMII = 9,                   
    SMI  = 2,                   
} eth_mode_t;

typedef struct {
    eth_mode_t mode;            
    uint16_t speed;             
    uint8_t dma;                
    uint8_t dma_chan;           
    uint8_t phy_addr;           
    gpio_t pins[];              
} eth_conf_t;

typedef struct eth_dma_desc {
    volatile uint32_t status;                   
    volatile uint32_t control;                  
    char * volatile buffer_addr;                
    struct eth_dma_desc * volatile desc_next;   
    volatile uint32_t reserved1_ext;            
    volatile uint32_t reserved2;                
    volatile uint32_t ts_low;
    volatile uint32_t ts_high;                  
} edma_desc_t;

#define RX_DESC_STAT_LS         (BIT8)  
#define RX_DESC_STAT_FS         (BIT9)  
#define RX_DESC_STAT_FL         (0x3FFF0000) /* bits 16-29 */
#define RX_DESC_STAT_DE         (BIT14) 
#define RX_DESC_STAT_ES         (BIT15) 
#define RX_DESC_STAT_OWN        (BIT31) 
#define RX_DESC_CTRL_RCH        (BIT14)
#define TX_DESC_STAT_UF         (BIT1)  
#define TX_DESC_STAT_EC         (BIT8)  
#define TX_DESC_STAT_NC         (BIT10) 
#define TX_DESC_STAT_ES         (BIT15) 
#define TX_DESC_STAT_TTSS       (BIT17) 
#define TX_DESC_STAT_TCH        (BIT20)
#define TX_DESC_STAT_TER        (BIT21) 
#define TX_DESC_STAT_CIC                    (BIT22 | BIT23)
#define TX_DESC_STAT_CIC_NO_HW_CHECKSUM     (0)             
#define TX_DESC_STAT_CIC_HW_CHECKSUM_IPV4   (BIT22)         
#define TX_DESC_STAT_CIC_HW_CHECKSUM_BOTH   (BIT22 | BIT32) 
 
#define TX_DESC_STAT_TTSE       (BIT25) 
#define TX_DESC_STAT_FS         (BIT28) 
#define TX_DESC_STAT_LS         (BIT29) 
#define TX_DESC_STAT_IC         (BIT30) 
#define TX_DESC_STAT_OWN        (BIT31) 
 
#ifdef MODULE_PERIPH_ETH_COMMON
void stm32_eth_common_init(void);
#endif /* MODULE_PERIPH_ETH_COMMON */
 
#ifdef __cplusplus
}
#endif