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684 lines
20 KiB
684 lines
20 KiB
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/*
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* Copyright (c) 2006-2020, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2020-10-30 bigmagic first version
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*/
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#include <stdint.h>
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#include <string.h>
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#include <rthw.h>
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#include <rtthread.h>
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#include "board.h"
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#include <lwip/sys.h>
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#include <netif/ethernetif.h>
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#include "mbox.h"
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#include "raspi4.h"
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#include "drv_eth.h"
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#define DBG_LEVEL DBG_LOG
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#include <rtdbg.h>
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#define LOG_TAG "drv.eth"
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static int link_speed = 0;
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static int link_flag = 0;
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#define RECV_CACHE_BUF (1024)
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#define SEND_CACHE_BUF (1024)
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#define SEND_DATA_NO_CACHE (0x08200000)
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#define RECV_DATA_NO_CACHE (0x08400000)
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#define DMA_DISC_ADDR_SIZE (4 * 1024 *1024)
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#define RX_DESC_BASE (MAC_REG + GENET_RX_OFF)
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#define TX_DESC_BASE (MAC_REG + GENET_TX_OFF)
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#define MAX_ADDR_LEN (6)
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#define upper_32_bits(n) ((rt_uint32_t)(((n) >> 16) >> 16))
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#define lower_32_bits(n) ((rt_uint32_t)(n))
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#define BIT(nr) (1UL << (nr))
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static rt_thread_t link_thread_tid = RT_NULL;
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#define LINK_THREAD_STACK_SIZE (1024)
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#define LINK_THREAD_PRIORITY (20)
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#define LINK_THREAD_TIMESLICE (10)
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static rt_uint32_t tx_index = 0;
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static rt_uint32_t rx_index = 0;
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static rt_uint32_t index_flag = 0;
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static rt_uint32_t send_cache_pbuf[RECV_CACHE_BUF];
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struct rt_eth_dev
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{
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struct eth_device parent;
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rt_uint8_t dev_addr[MAX_ADDR_LEN];
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char *name;
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void *iobase;
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int state;
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int index;
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struct rt_timer link_timer;
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struct rt_timer rx_poll_timer;
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void *priv;
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};
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static struct rt_eth_dev eth_dev;
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static struct rt_semaphore sem_lock;
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static struct rt_semaphore link_ack;
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static inline rt_uint32_t read32(void *addr)
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{
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return (*((volatile unsigned int *)(addr)));
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}
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static inline void write32(void *addr, rt_uint32_t value)
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{
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(*((volatile unsigned int *)(addr))) = value;
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}
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static void eth_rx_irq(int irq, void *param)
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{
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rt_uint32_t val = 0;
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val = read32(MAC_REG + GENET_INTRL2_CPU_STAT);
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val &= ~read32(MAC_REG + GENET_INTRL2_CPU_STAT_MASK);
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write32(MAC_REG + GENET_INTRL2_CPU_CLEAR, val);
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if (val & GENET_IRQ_RXDMA_DONE)
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{
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eth_device_ready(ð_dev.parent);
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}
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if (val & GENET_IRQ_TXDMA_DONE)
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{
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rt_sem_release(&sem_lock);
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}
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}
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/* We only support RGMII (as used on the RPi4). */
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static int bcmgenet_interface_set(void)
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{
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int phy_mode = PHY_INTERFACE_MODE_RGMII;
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switch (phy_mode)
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{
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case PHY_INTERFACE_MODE_RGMII:
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case PHY_INTERFACE_MODE_RGMII_RXID:
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write32(MAC_REG + SYS_PORT_CTRL, PORT_MODE_EXT_GPHY);
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break;
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default:
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rt_kprintf("unknown phy mode: %d\n", MAC_REG);
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return -1;
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}
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return 0;
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}
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static void bcmgenet_umac_reset(void)
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{
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rt_uint32_t reg;
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reg = read32(MAC_REG + SYS_RBUF_FLUSH_CTRL);
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reg |= BIT(1);
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write32((MAC_REG + SYS_RBUF_FLUSH_CTRL), reg);
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reg &= ~BIT(1);
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write32((MAC_REG + SYS_RBUF_FLUSH_CTRL), reg);
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DELAY_MICROS(10);
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write32((MAC_REG + SYS_RBUF_FLUSH_CTRL), 0);
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DELAY_MICROS(10);
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write32(MAC_REG + UMAC_CMD, 0);
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write32(MAC_REG + UMAC_CMD, (CMD_SW_RESET | CMD_LCL_LOOP_EN));
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DELAY_MICROS(2);
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write32(MAC_REG + UMAC_CMD, 0);
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/* clear tx/rx counter */
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write32(MAC_REG + UMAC_MIB_CTRL, MIB_RESET_RX | MIB_RESET_TX | MIB_RESET_RUNT);
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write32(MAC_REG + UMAC_MIB_CTRL, 0);
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write32(MAC_REG + UMAC_MAX_FRAME_LEN, ENET_MAX_MTU_SIZE);
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/* init rx registers, enable ip header optimization */
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reg = read32(MAC_REG + RBUF_CTRL);
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reg |= RBUF_ALIGN_2B;
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write32(MAC_REG + RBUF_CTRL, reg);
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write32(MAC_REG + RBUF_TBUF_SIZE_CTRL, 1);
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}
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static void bcmgenet_disable_dma(void)
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{
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rt_uint32_t tdma_reg = 0, rdma_reg = 0;
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tdma_reg = read32(MAC_REG + TDMA_REG_BASE + DMA_CTRL);
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tdma_reg &= ~(1UL << DMA_EN);
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write32(MAC_REG + TDMA_REG_BASE + DMA_CTRL, tdma_reg);
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rdma_reg = read32(MAC_REG + RDMA_REG_BASE + DMA_CTRL);
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rdma_reg &= ~(1UL << DMA_EN);
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write32(MAC_REG + RDMA_REG_BASE + DMA_CTRL, rdma_reg);
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write32(MAC_REG + UMAC_TX_FLUSH, 1);
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DELAY_MICROS(100);
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write32(MAC_REG + UMAC_TX_FLUSH, 0);
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}
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static void bcmgenet_enable_dma(void)
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{
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rt_uint32_t reg = 0;
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rt_uint32_t dma_ctrl = 0;
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dma_ctrl = (1 << (DEFAULT_Q + DMA_RING_BUF_EN_SHIFT)) | DMA_EN;
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write32(MAC_REG + TDMA_REG_BASE + DMA_CTRL, dma_ctrl);
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reg = read32(MAC_REG + RDMA_REG_BASE + DMA_CTRL);
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write32(MAC_REG + RDMA_REG_BASE + DMA_CTRL, dma_ctrl | reg);
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}
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static int bcmgenet_mdio_write(rt_uint32_t addr, rt_uint32_t reg, rt_uint32_t value)
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{
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int count = 10000;
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rt_uint32_t val;
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val = MDIO_WR | (addr << MDIO_PMD_SHIFT) | (reg << MDIO_REG_SHIFT) | (0xffff & value);
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write32(MAC_REG + MDIO_CMD, val);
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rt_uint32_t reg_val = read32(MAC_REG + MDIO_CMD);
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reg_val = reg_val | MDIO_START_BUSY;
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write32(MAC_REG + MDIO_CMD, reg_val);
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while ((read32(MAC_REG + MDIO_CMD) & MDIO_START_BUSY) && (--count))
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DELAY_MICROS(1);
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reg_val = read32(MAC_REG + MDIO_CMD);
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return reg_val & 0xffff;
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}
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static int bcmgenet_mdio_read(rt_uint32_t addr, rt_uint32_t reg)
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{
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int count = 10000;
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rt_uint32_t val = 0;
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rt_uint32_t reg_val = 0;
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val = MDIO_RD | (addr << MDIO_PMD_SHIFT) | (reg << MDIO_REG_SHIFT);
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write32(MAC_REG + MDIO_CMD, val);
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reg_val = read32(MAC_REG + MDIO_CMD);
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reg_val = reg_val | MDIO_START_BUSY;
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write32(MAC_REG + MDIO_CMD, reg_val);
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while ((read32(MAC_REG + MDIO_CMD) & MDIO_START_BUSY) && (--count))
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DELAY_MICROS(1);
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reg_val = read32(MAC_REG + MDIO_CMD);
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return reg_val & 0xffff;
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}
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static int bcmgenet_gmac_write_hwaddr(void)
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{
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//{0xdc,0xa6,0x32,0x28,0x22,0x50};
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rt_uint8_t addr[6];
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rt_uint32_t reg;
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bcm271x_mbox_hardware_get_mac_address(&addr[0]);
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reg = addr[0] << 24 | addr[1] << 16 | addr[2] << 8 | addr[3];
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write32(MAC_REG + UMAC_MAC0, reg);
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reg = addr[4] << 8 | addr[5];
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write32(MAC_REG + UMAC_MAC1, reg);
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return 0;
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}
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static int get_ethernet_uid(void)
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{
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rt_uint32_t uid_high = 0;
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rt_uint32_t uid_low = 0;
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rt_uint32_t uid = 0;
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uid_high = bcmgenet_mdio_read(1, BCM54213PE_PHY_IDENTIFIER_HIGH);
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uid_low = bcmgenet_mdio_read(1, BCM54213PE_PHY_IDENTIFIER_LOW);
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uid = (uid_high << 16 | uid_low);
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if (BCM54213PE_VERSION_B1 == uid)
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{
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LOG_I("version is B1\n");
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}
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return uid;
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}
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static void bcmgenet_mdio_init(void)
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{
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rt_uint32_t ret = 0;
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/*get ethernet uid*/
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ret = get_ethernet_uid();
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if (ret == 0)
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{
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return;
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}
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/* reset phy */
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bcmgenet_mdio_write(1, BCM54213PE_MII_CONTROL, MII_CONTROL_PHY_RESET);
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/* read control reg */
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bcmgenet_mdio_read(1, BCM54213PE_MII_CONTROL);
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/* reset phy again */
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bcmgenet_mdio_write(1, BCM54213PE_MII_CONTROL, MII_CONTROL_PHY_RESET);
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/* read control reg */
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bcmgenet_mdio_read(1, BCM54213PE_MII_CONTROL);
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/* read status reg */
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bcmgenet_mdio_read(1, BCM54213PE_MII_STATUS);
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/* read status reg */
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bcmgenet_mdio_read(1, BCM54213PE_IEEE_EXTENDED_STATUS);
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bcmgenet_mdio_read(1, BCM54213PE_AUTO_NEGOTIATION_ADV);
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bcmgenet_mdio_read(1, BCM54213PE_MII_STATUS);
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bcmgenet_mdio_read(1, BCM54213PE_CONTROL);
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/* half full duplex capability */
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bcmgenet_mdio_write(1, BCM54213PE_CONTROL, (CONTROL_HALF_DUPLEX_CAPABILITY | CONTROL_FULL_DUPLEX_CAPABILITY));
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bcmgenet_mdio_read(1, BCM54213PE_MII_CONTROL);
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/* set mii control */
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bcmgenet_mdio_write(1, BCM54213PE_MII_CONTROL, (MII_CONTROL_AUTO_NEGOTIATION_ENABLED | MII_CONTROL_AUTO_NEGOTIATION_RESTART | MII_CONTROL_PHY_FULL_DUPLEX | MII_CONTROL_SPEED_SELECTION));
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}
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static void rx_ring_init(void)
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{
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write32(MAC_REG + RDMA_REG_BASE + DMA_SCB_BURST_SIZE, DMA_MAX_BURST_LENGTH);
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write32(MAC_REG + RDMA_RING_REG_BASE + DMA_START_ADDR, 0x0);
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write32(MAC_REG + RDMA_READ_PTR, 0x0);
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write32(MAC_REG + RDMA_WRITE_PTR, 0x0);
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write32(MAC_REG + RDMA_RING_REG_BASE + DMA_END_ADDR, RX_DESCS * DMA_DESC_SIZE / 4 - 1);
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write32(MAC_REG + RDMA_PROD_INDEX, 0x0);
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write32(MAC_REG + RDMA_CONS_INDEX, 0x0);
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write32(MAC_REG + RDMA_RING_REG_BASE + DMA_RING_BUF_SIZE, (RX_DESCS << DMA_RING_SIZE_SHIFT) | RX_BUF_LENGTH);
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write32(MAC_REG + RDMA_XON_XOFF_THRESH, DMA_FC_THRESH_VALUE);
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write32(MAC_REG + RDMA_REG_BASE + DMA_RING_CFG, 1 << DEFAULT_Q);
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}
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static void tx_ring_init(void)
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{
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write32(MAC_REG + TDMA_REG_BASE + DMA_SCB_BURST_SIZE, DMA_MAX_BURST_LENGTH);
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write32(MAC_REG + TDMA_RING_REG_BASE + DMA_START_ADDR, 0x0);
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write32(MAC_REG + TDMA_READ_PTR, 0x0);
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write32(MAC_REG + TDMA_READ_PTR, 0x0);
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write32(MAC_REG + TDMA_READ_PTR, 0x0);
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write32(MAC_REG + TDMA_WRITE_PTR, 0x0);
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write32(MAC_REG + TDMA_RING_REG_BASE + DMA_END_ADDR, TX_DESCS * DMA_DESC_SIZE / 4 - 1);
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write32(MAC_REG + TDMA_PROD_INDEX, 0x0);
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write32(MAC_REG + TDMA_CONS_INDEX, 0x0);
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write32(MAC_REG + TDMA_RING_REG_BASE + DMA_MBUF_DONE_THRESH, 0x1);
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write32(MAC_REG + TDMA_FLOW_PERIOD, 0x0);
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write32(MAC_REG + TDMA_RING_REG_BASE + DMA_RING_BUF_SIZE, (TX_DESCS << DMA_RING_SIZE_SHIFT) | RX_BUF_LENGTH);
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write32(MAC_REG + TDMA_REG_BASE + DMA_RING_CFG, 1 << DEFAULT_Q);
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}
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static void rx_descs_init(void)
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{
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char *rxbuffs = (char *)RECV_DATA_NO_CACHE;
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rt_uint32_t len_stat, i;
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void *desc_base = (void *)RX_DESC_BASE;
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len_stat = (RX_BUF_LENGTH << DMA_BUFLENGTH_SHIFT) | DMA_OWN;
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for (i = 0; i < RX_DESCS; i++)
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{
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write32((desc_base + i * DMA_DESC_SIZE + DMA_DESC_ADDRESS_LO), lower_32_bits((uintptr_t)&rxbuffs[i * RX_BUF_LENGTH]));
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write32((desc_base + i * DMA_DESC_SIZE + DMA_DESC_ADDRESS_HI), upper_32_bits((uintptr_t)&rxbuffs[i * RX_BUF_LENGTH]));
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write32((desc_base + i * DMA_DESC_SIZE + DMA_DESC_LENGTH_STATUS), len_stat);
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}
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}
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static int bcmgenet_adjust_link(void)
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{
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rt_uint32_t speed;
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rt_uint32_t phy_dev_speed = link_speed;
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switch (phy_dev_speed)
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{
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case SPEED_1000:
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speed = UMAC_SPEED_1000;
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break;
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case SPEED_100:
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speed = UMAC_SPEED_100;
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break;
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case SPEED_10:
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speed = UMAC_SPEED_10;
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break;
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default:
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rt_kprintf("bcmgenet: Unsupported PHY speed: %d\n", phy_dev_speed);
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return -1;
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}
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rt_uint32_t reg1 = read32(MAC_REG + EXT_RGMII_OOB_CTRL);
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//reg1 &= ~(1UL << OOB_DISABLE);
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//rt_kprintf("OOB_DISABLE is %d\n", OOB_DISABLE);
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reg1 |= (RGMII_LINK | RGMII_MODE_EN | ID_MODE_DIS);
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write32(MAC_REG + EXT_RGMII_OOB_CTRL, reg1);
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DELAY_MICROS(1000);
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write32(MAC_REG + UMAC_CMD, speed << CMD_SPEED_SHIFT);
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return 0;
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}
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void link_irq(void *param)
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{
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if ((bcmgenet_mdio_read(1, BCM54213PE_MII_STATUS) & MII_STATUS_LINK_UP) != 0)
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{
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rt_sem_release(&link_ack);
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}
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}
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static int bcmgenet_gmac_eth_start(void)
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{
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rt_uint32_t ret;
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rt_uint32_t count = 10000;
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bcmgenet_umac_reset();
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bcmgenet_gmac_write_hwaddr();
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/* Disable RX/TX DMA and flush TX queues */
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bcmgenet_disable_dma();
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rx_ring_init();
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rx_descs_init();
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tx_ring_init();
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/* Enable RX/TX DMA */
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bcmgenet_enable_dma();
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/* Update MAC registers based on PHY property */
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ret = bcmgenet_adjust_link();
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if (ret)
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{
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rt_kprintf("bcmgenet: adjust PHY link failed: %d\n", ret);
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return ret;
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}
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/* wait tx index clear */
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while ((read32(MAC_REG + TDMA_CONS_INDEX) != 0) && (--count))
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DELAY_MICROS(1);
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tx_index = read32(MAC_REG + TDMA_CONS_INDEX);
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write32(MAC_REG + TDMA_PROD_INDEX, tx_index);
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index_flag = read32(MAC_REG + RDMA_PROD_INDEX);
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rx_index = index_flag % RX_DESCS;
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write32(MAC_REG + RDMA_CONS_INDEX, index_flag);
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write32(MAC_REG + RDMA_PROD_INDEX, index_flag);
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/* Enable Rx/Tx */
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rt_uint32_t rx_tx_en;
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rx_tx_en = read32(MAC_REG + UMAC_CMD);
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rx_tx_en |= (CMD_TX_EN | CMD_RX_EN);
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write32(MAC_REG + UMAC_CMD, rx_tx_en);
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//IRQ
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write32(MAC_REG + GENET_INTRL2_CPU_CLEAR_MASK, GENET_IRQ_TXDMA_DONE | GENET_IRQ_RXDMA_DONE);
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return 0;
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}
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static rt_uint32_t prev_recv_cnt = 0;
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static rt_uint32_t cur_recv_cnt = 0;
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static rt_uint32_t bcmgenet_gmac_eth_recv(rt_uint8_t **packetp)
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{
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void *desc_base;
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rt_uint32_t length = 0, addr = 0;
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rt_uint32_t prod_index = read32(MAC_REG + RDMA_PROD_INDEX);
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if (prod_index == index_flag)
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{
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cur_recv_cnt = index_flag;
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index_flag = 0x7fffffff;
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/* no buff */
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return 0;
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}
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else
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{
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if (prev_recv_cnt == (prod_index & 0xffff))
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{
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return 0;
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}
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desc_base = RX_DESC_BASE + rx_index * DMA_DESC_SIZE;
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length = read32(desc_base + DMA_DESC_LENGTH_STATUS);
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length = (length >> DMA_BUFLENGTH_SHIFT) & DMA_BUFLENGTH_MASK;
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addr = read32(desc_base + DMA_DESC_ADDRESS_LO);
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/* To cater for the IP headepr alignment the hardware does.
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* This would actually not be needed if we don't program
|
|
* RBUF_ALIGN_2B
|
|
*/
|
|
rt_hw_cpu_dcache_ops(RT_HW_CACHE_INVALIDATE, (void *) addr, length);
|
|
*packetp = (rt_uint8_t *)(addr + RX_BUF_OFFSET);
|
|
|
|
rx_index = rx_index + 1;
|
|
if (rx_index >= RX_DESCS)
|
|
{
|
|
rx_index = 0;
|
|
}
|
|
write32(MAC_REG + RDMA_CONS_INDEX, cur_recv_cnt);
|
|
|
|
cur_recv_cnt = cur_recv_cnt + 1;
|
|
|
|
if (cur_recv_cnt > 0xffff)
|
|
{
|
|
cur_recv_cnt = 0;
|
|
}
|
|
prev_recv_cnt = cur_recv_cnt;
|
|
|
|
return length;
|
|
}
|
|
}
|
|
|
|
static int bcmgenet_gmac_eth_send(void *packet, int length)
|
|
{
|
|
void *desc_base = (TX_DESC_BASE + tx_index * DMA_DESC_SIZE);
|
|
rt_uint32_t len_stat = length << DMA_BUFLENGTH_SHIFT;
|
|
|
|
rt_uint32_t prod_index;
|
|
|
|
prod_index = read32(MAC_REG + TDMA_PROD_INDEX);
|
|
|
|
len_stat |= 0x3F << DMA_TX_QTAG_SHIFT;
|
|
len_stat |= DMA_TX_APPEND_CRC | DMA_SOP | DMA_EOP;
|
|
|
|
rt_hw_cpu_dcache_ops(RT_HW_CACHE_FLUSH, (void *)packet, length);
|
|
|
|
write32((desc_base + DMA_DESC_ADDRESS_LO), (rt_uint32_t)packet);
|
|
write32((desc_base + DMA_DESC_ADDRESS_HI), 0);
|
|
write32((desc_base + DMA_DESC_LENGTH_STATUS), len_stat);
|
|
|
|
tx_index = tx_index + 1;
|
|
prod_index = prod_index + 1;
|
|
|
|
if (prod_index == 0xe000)
|
|
{
|
|
write32(MAC_REG + TDMA_PROD_INDEX, 0);
|
|
prod_index = 0;
|
|
}
|
|
|
|
if (tx_index >= TX_DESCS)
|
|
{
|
|
tx_index = 0;
|
|
}
|
|
|
|
/* Start Transmisson */
|
|
write32(MAC_REG + TDMA_PROD_INDEX, prod_index);
|
|
rt_sem_take(&sem_lock, RT_WAITING_FOREVER);
|
|
return 0;
|
|
}
|
|
|
|
static void link_task_entry(void *param)
|
|
{
|
|
struct eth_device *eth_device = (struct eth_device *)param;
|
|
RT_ASSERT(eth_device != RT_NULL);
|
|
struct rt_eth_dev *dev = ð_dev;
|
|
//start mdio
|
|
bcmgenet_mdio_init();
|
|
//start timer link
|
|
rt_timer_init(&dev->link_timer, "link_timer",
|
|
link_irq,
|
|
NULL,
|
|
100,
|
|
RT_TIMER_FLAG_PERIODIC);
|
|
rt_timer_start(&dev->link_timer);
|
|
|
|
//link wait forever
|
|
rt_sem_take(&link_ack, RT_WAITING_FOREVER);
|
|
eth_device_linkchange(ð_dev.parent, RT_TRUE); //link up
|
|
rt_timer_stop(&dev->link_timer);
|
|
|
|
//set mac
|
|
bcmgenet_gmac_write_hwaddr();
|
|
bcmgenet_gmac_write_hwaddr();
|
|
|
|
//check link speed
|
|
if ((bcmgenet_mdio_read(1, BCM54213PE_STATUS) & (1 << 10)) || (bcmgenet_mdio_read(1, BCM54213PE_STATUS) & (1 << 11)))
|
|
{
|
|
link_speed = 1000;
|
|
rt_kprintf("Support link mode Speed 1000M\n");
|
|
}
|
|
else if ((bcmgenet_mdio_read(1, 0x05) & (1 << 7)) || (bcmgenet_mdio_read(1, 0x05) & (1 << 8)) || (bcmgenet_mdio_read(1, 0x05) & (1 << 9)))
|
|
{
|
|
link_speed = 100;
|
|
rt_kprintf("Support link mode Speed 100M\n");
|
|
}
|
|
else
|
|
{
|
|
link_speed = 10;
|
|
rt_kprintf("Support link mode Speed 10M\n");
|
|
}
|
|
|
|
bcmgenet_gmac_eth_start();
|
|
rt_hw_interrupt_install(ETH_IRQ, eth_rx_irq, NULL, "eth_irq");
|
|
rt_hw_interrupt_umask(ETH_IRQ);
|
|
link_flag = 1;
|
|
}
|
|
|
|
static rt_err_t bcmgenet_eth_init(rt_device_t device)
|
|
{
|
|
rt_uint32_t ret = 0;
|
|
rt_uint32_t hw_reg = 0;
|
|
|
|
/* Read GENET HW version */
|
|
rt_uint8_t major = 0;
|
|
hw_reg = read32(MAC_REG + SYS_REV_CTRL);
|
|
major = (hw_reg >> 24) & 0x0f;
|
|
if (major != 6)
|
|
{
|
|
if (major == 5)
|
|
major = 4;
|
|
else if (major == 0)
|
|
major = 1;
|
|
|
|
rt_kprintf("Uns upported GENETv%d.%d\n", major, (hw_reg >> 16) & 0x0f);
|
|
return -RT_ERROR;
|
|
}
|
|
/* set interface */
|
|
ret = bcmgenet_interface_set();
|
|
if (ret)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
/* rbuf clear */
|
|
write32(MAC_REG + SYS_RBUF_FLUSH_CTRL, 0);
|
|
|
|
/* disable MAC while updating its registers */
|
|
write32(MAC_REG + UMAC_CMD, 0);
|
|
/* issue soft reset with (rg)mii loopback to ensure a stable rxclk */
|
|
write32(MAC_REG + UMAC_CMD, CMD_SW_RESET | CMD_LCL_LOOP_EN);
|
|
|
|
link_thread_tid = rt_thread_create("link", link_task_entry, (void *)device,
|
|
LINK_THREAD_STACK_SIZE,
|
|
LINK_THREAD_PRIORITY, LINK_THREAD_TIMESLICE);
|
|
if (link_thread_tid != RT_NULL)
|
|
rt_thread_startup(link_thread_tid);
|
|
|
|
return RT_EOK;
|
|
}
|
|
|
|
static rt_err_t bcmgenet_eth_control(rt_device_t dev, int cmd, void *args)
|
|
{
|
|
switch (cmd)
|
|
{
|
|
case NIOCTL_GADDR:
|
|
if (args)
|
|
rt_memcpy(args, eth_dev.dev_addr, 6);
|
|
else
|
|
return -RT_ERROR;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return RT_EOK;
|
|
}
|
|
|
|
rt_err_t rt_eth_tx(rt_device_t device, struct pbuf *p)
|
|
{
|
|
rt_uint32_t sendbuf = (rt_uint32_t)SEND_DATA_NO_CACHE + (rt_uint32_t)(tx_index * SEND_CACHE_BUF);
|
|
/* lock eth device */
|
|
if (link_flag == 1)
|
|
{
|
|
pbuf_copy_partial(p, (void *)&send_cache_pbuf[0], p->tot_len, 0);
|
|
rt_memcpy((void *)sendbuf, send_cache_pbuf, p->tot_len);
|
|
bcmgenet_gmac_eth_send((void *)sendbuf, p->tot_len);
|
|
}
|
|
return RT_EOK;
|
|
}
|
|
|
|
struct pbuf *rt_eth_rx(rt_device_t device)
|
|
{
|
|
int recv_len = 0;
|
|
rt_uint8_t *addr_point = RT_NULL;
|
|
struct pbuf *pbuf = RT_NULL;
|
|
if (link_flag == 1)
|
|
{
|
|
recv_len = bcmgenet_gmac_eth_recv((rt_uint8_t **)&addr_point);
|
|
if (recv_len > 0)
|
|
{
|
|
pbuf = pbuf_alloc(PBUF_LINK, recv_len, PBUF_RAM);
|
|
if (pbuf)
|
|
{
|
|
rt_memcpy(pbuf->payload, addr_point, recv_len);
|
|
}
|
|
}
|
|
}
|
|
return pbuf;
|
|
}
|
|
|
|
int rt_hw_eth_init(void)
|
|
{
|
|
rt_uint8_t mac_addr[6];
|
|
rt_sem_init(&sem_lock, "eth_send_lock", TX_DESCS, RT_IPC_FLAG_FIFO);
|
|
rt_sem_init(&link_ack, "link_ack", 0, RT_IPC_FLAG_FIFO);
|
|
|
|
memset(ð_dev, 0, sizeof(eth_dev));
|
|
memset((void *)SEND_DATA_NO_CACHE, 0, DMA_DISC_ADDR_SIZE);
|
|
memset((void *)RECV_DATA_NO_CACHE, 0, DMA_DISC_ADDR_SIZE);
|
|
bcm271x_mbox_hardware_get_mac_address(&mac_addr[0]);
|
|
|
|
eth_dev.iobase = MAC_REG;
|
|
eth_dev.name = "e0";
|
|
eth_dev.dev_addr[0] = mac_addr[0];
|
|
eth_dev.dev_addr[1] = mac_addr[1];
|
|
eth_dev.dev_addr[2] = mac_addr[2];
|
|
eth_dev.dev_addr[3] = mac_addr[3];
|
|
eth_dev.dev_addr[4] = mac_addr[4];
|
|
eth_dev.dev_addr[5] = mac_addr[5];
|
|
|
|
eth_dev.parent.parent.type = RT_Device_Class_NetIf;
|
|
eth_dev.parent.parent.init = bcmgenet_eth_init;
|
|
eth_dev.parent.parent.open = RT_NULL;
|
|
eth_dev.parent.parent.close = RT_NULL;
|
|
eth_dev.parent.parent.read = RT_NULL;
|
|
eth_dev.parent.parent.write = RT_NULL;
|
|
eth_dev.parent.parent.control = bcmgenet_eth_control;
|
|
eth_dev.parent.parent.user_data = RT_NULL;
|
|
|
|
eth_dev.parent.eth_tx = rt_eth_tx;
|
|
eth_dev.parent.eth_rx = rt_eth_rx;
|
|
|
|
eth_device_init(&(eth_dev.parent), "e0");
|
|
eth_device_linkchange(ð_dev.parent, RT_FALSE); //link down
|
|
return 0;
|
|
}
|
|
INIT_COMPONENT_EXPORT(rt_hw_eth_init);
|
|
|