Eric Lee / smarc-uboot

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api/api_net.c 1.98 KB
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d41ce506b   Eric Lee   Initial Release, ... 
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  /*
   * (C) Copyright 2007 Semihalf
   *
   * Written by: Rafal Jaworowski <raj@semihalf.com>
   *
   * SPDX-License-Identifier:	GPL-2.0+
   */
  
  #include <config.h>
  #include <common.h>
  #include <net.h>
  #include <linux/types.h>
  #include <api_public.h>
  
  DECLARE_GLOBAL_DATA_PTR;
  
  #define DEBUG
  #undef DEBUG
  
  #ifdef DEBUG
  #define debugf(fmt, args...) do { printf("%s(): ", __func__); printf(fmt, ##args); } while (0)
  #else
  #define debugf(fmt, args...)
  #endif
  
  #define errf(fmt, args...) do { printf("ERROR @ %s(): ", __func__); printf(fmt, ##args); } while (0)
  
  #if defined(CONFIG_CMD_NET) && !defined(CONFIG_DM_ETH)
  
  static int dev_valid_net(void *cookie)
  {
  	return ((void *)eth_get_dev() == cookie) ? 1 : 0;
  }
  
  int dev_open_net(void *cookie)
  {
  	if (!dev_valid_net(cookie))
  		return API_ENODEV;
  
  	if (eth_init() < 0)
  		return API_EIO;
  
  	return 0;
  }
  
  int dev_close_net(void *cookie)
  {
  	if (!dev_valid_net(cookie))
  		return API_ENODEV;
  
  	eth_halt();
  	return 0;
  }
  
  /*
   * There can only be one active eth interface at a time - use what is
   * currently set to eth_current
   */
  int dev_enum_net(struct device_info *di)
  {
  	struct eth_device *eth_current = eth_get_dev();
  
  	di->type = DEV_TYP_NET;
  	di->cookie = (void *)eth_current;
  	if (di->cookie == NULL)
  		return 0;
  
  	memcpy(di->di_net.hwaddr, eth_current->enetaddr, 6);
  
  	debugf("device found, returning cookie 0x%08x
  ",
  		(u_int32_t)di->cookie);
  
  	return 1;
  }
  
  int dev_write_net(void *cookie, void *buf, int len)
  {
  	/* XXX verify that cookie points to a valid net device??? */
  
  	return eth_send(buf, len);
  }
  
  int dev_read_net(void *cookie, void *buf, int len)
  {
  	/* XXX verify that cookie points to a valid net device??? */
  
  	return eth_receive(buf, len);
  }
  
  #else
  
  int dev_open_net(void *cookie)
  {
  	return API_ENODEV;
  }
  
  int dev_close_net(void *cookie)
  {
  	return API_ENODEV;
  }
  
  int dev_enum_net(struct device_info *di)
  {
  	return 0;
  }
  
  int dev_write_net(void *cookie, void *buf, int len)
  {
  	return API_ENODEV;
  }
  
  int dev_read_net(void *cookie, void *buf, int len)
  {
  	return API_ENODEV;
  }
  
  #endif