ctrl_rtl8019.h

基于康草科技中一款SOPC开发板上的8019的以太网驱动程序

/******************************************************************************
* www.21control.com
******************************************************************************/

#ifndef __CTRL_RTL8019_H__
#define __CTRL_RTL8019_H__

#ifdef LWIP
#include <stdlib.h>
#include <stdio.h>
#include "alt_types.h"
#include "system.h"
#include "lwip/netif.h"
#include "arch/sys_arch.h"
#include "alt_lwip_dev.h"
#include "sys/alt_warning.h"

#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */

err_t ctrl_rtl8019_init(struct netif *netif);
void ctrl_rtl8019_rx();

typedef struct 
{
  alt_lwip_dev_list   lwip_dev_list;
  int                 base_addr;
  int                 irq;
  int                 bus_width;
  sys_sem_t           semaphore;
  sys_sem_t           arp_semaphore;
  alt_u8              tx_packet_no; /* Number of packet allocated for Tx */
}ctrl_rtl8019_if;

#define CTRL_RTL8019_INSTANCE(name, dev) \
ctrl_rtl8019_if dev = \
{\
  {\
    ALT_LLIST_ENTRY,\
    {\
      0,\
      name##_NAME,\
      ctrl_rtl8019_init, \
      ctrl_rtl8019_rx,\
    },\
  },\
  name##_BASE,\
  name##_IRQ,\
  8,\
  0,\
  0\
}

#define CTRL_RTL8019_INIT(name, dev)  alt_lwip_dev_reg(dev)

#ifdef __cplusplus
}
#endif /* __cplusplus */

/*!
 * Realtek packet header.
 */
struct nic_pkt_header {
    u_char ph_status;           /*!< \brief Status, contents of RSR register */
    u_char ph_nextpg;           /*!< \brief Page for next packet */
    u_short ph_size;            /*!< \brief Size of header and packet in octets */
};

/*!
 * Size of a single ring buffer page.
 */
#define NIC_PAGE_SIZE   0x100

/*!
 * First ring buffer page address.
 */
#define NIC_START_PAGE  0x40

/*!
 * Last ring buffer page address plus 1.
 */
#define NIC_STOP_PAGE   0x60

/*!
 * Number of pages in a single transmit buffer.
 *
 * This should be at least the MTU size.
 */
#define NIC_TX_PAGES    6

/*!
 * Number of transmit buffers.
 */
#define NIC_TX_BUFFERS  2

/*!
 * Controller memory layout:
 *
 * 0x4000 - 0x4bff  3k bytes transmit buffer
 * 0x4c00 - 0x5fff  5k bytes receive buffer
 */
#define NIC_FIRST_TX_PAGE   NIC_START_PAGE
#define NIC_FIRST_RX_PAGE   (NIC_FIRST_TX_PAGE + NIC_TX_PAGES * NIC_TX_BUFFERS)

/*!
 * Standard sizing information
 */
#define TX_PAGES 12             /* Allow for 2 back-to-back frames */

#else
#warning excluding drivers for the rtl8019 as you do not have the LWIP software component selected
#define CTRL_RTL8019_INSTANCE(name, dev) extern int alt_no_storage
#define CTRL_RTL8019_INIT(name, dev) while(0)     
#endif /* LWIP */

#endif /* __CTRL_RTL8019_H__ */