LXR uboot/api/api

   1/*
   2 * (C) Copyright 2007 Semihalf
   3 *
   4 * Written by: Rafal Jaworowski <raj@semihalf.com>
   5 *
   6 * See file CREDITS for list of people who contributed to this
   7 * project.
   8 *
   9 * This program is free software; you can redistribute it and/or
  10 * modify it under the terms of the GNU General Public License as
  11 * published by the Free Software Foundation; either version 2 of
  12 * the License, or (at your option) any later version.
  13 *
  14 * This program is distributed in the hope that it will be useful,
  15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 * GNU General Public License for more details.
  18 *
  19 * You should have received a copy of the GNU General Public License
  20 * along with this program; if not, write to the Free Software
  21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  22 * MA 02111-1307 USA
  23 *
  24 */
  25
  26#include <config.h>
  27#include <common.h>
  28#include <net.h>
  29#include <linux/types.h>
  30#include <api_public.h>
  31
  32DECLARE_GLOBAL_DATA_PTR;
  33
  34#define DEBUG
  35#undef DEBUG
  36
  37#ifdef DEBUG
  38#define debugf(fmt, args...) do { printf("%s(): ", __func__); printf(fmt, ##args); } while (0)
  39#else
  40#define debugf(fmt, args...)
  41#endif
  42
  43#define errf(fmt, args...) do { printf("ERROR @ %s(): ", __func__); printf(fmt, ##args); } while (0)
  44
  45
  46static int dev_valid_net(void *cookie)
  47{
  48        return ((void *)eth_get_dev() == cookie) ? 1 : 0;
  49}
  50
  51int dev_open_net(void *cookie)
  52{
  53        if (!dev_valid_net(cookie))
  54                return API_ENODEV;
  55
  56        if (eth_init(gd->bd) < 0)
  57                return API_EIO;
  58
  59        return 0;
  60}
  61
  62int dev_close_net(void *cookie)
  63{
  64        if (!dev_valid_net(cookie))
  65                return API_ENODEV;
  66
  67        eth_halt();
  68        return 0;
  69}
  70
  71/*
  72 * There can only be one active eth interface at a time - use what is
  73 * currently set to eth_current
  74 */
  75int dev_enum_net(struct device_info *di)
  76{
  77        struct eth_device *eth_current = eth_get_dev();
  78
  79        di->type = DEV_TYP_NET;
  80        di->cookie = (void *)eth_current;
  81        if (di->cookie == NULL)
  82                return 0;
  83
  84        memcpy(di->di_net.hwaddr, eth_current->enetaddr, 6);
  85
  86        debugf("device found, returning cookie 0x%08x\n",
  87                (u_int32_t)di->cookie);
  88
  89        return 1;
  90}
  91
  92int dev_write_net(void *cookie, void *buf, int len)
  93{
  94        /* XXX verify that cookie points to a valid net device??? */
  95
  96        return eth_send(buf, len);
  97}
  98
  99int dev_read_net(void *cookie, void *buf, int len)
 100{
 101        /* XXX verify that cookie points to a valid net device??? */
 102
 103        return eth_receive(buf, len);
 104}
 105