LXR uboot/api/api

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * (C) Copyright 2007 Semihalf
   4 *
   5 * Written by: Rafal Jaworowski <raj@semihalf.com>
   6 */
   7
   8#include <config.h>
   9#include <common.h>
  10#include <net.h>
  11#include <linux/types.h>
  12#include <api_public.h>
  13
  14#define DEBUG
  15#undef DEBUG
  16
  17#ifdef DEBUG
  18#define debugf(fmt, args...) do { printf("%s(): ", __func__); printf(fmt, ##args); } while (0)
  19#else
  20#define debugf(fmt, args...)
  21#endif
  22
  23#define errf(fmt, args...) do { printf("ERROR @ %s(): ", __func__); printf(fmt, ##args); } while (0)
  24
  25#if defined(CONFIG_CMD_NET) && !defined(CONFIG_DM_ETH)
  26
  27static int dev_valid_net(void *cookie)
  28{
  29        return ((void *)eth_get_dev() == cookie) ? 1 : 0;
  30}
  31
  32int dev_open_net(void *cookie)
  33{
  34        if (!dev_valid_net(cookie))
  35                return API_ENODEV;
  36
  37        if (eth_init() < 0)
  38                return API_EIO;
  39
  40        return 0;
  41}
  42
  43int dev_close_net(void *cookie)
  44{
  45        if (!dev_valid_net(cookie))
  46                return API_ENODEV;
  47
  48        eth_halt();
  49        return 0;
  50}
  51
  52/*
  53 * There can only be one active eth interface at a time - use what is
  54 * currently set to eth_current
  55 */
  56int dev_enum_net(struct device_info *di)
  57{
  58        struct eth_device *eth_current = eth_get_dev();
  59
  60        di->type = DEV_TYP_NET;
  61        di->cookie = (void *)eth_current;
  62        if (di->cookie == NULL)
  63                return 0;
  64
  65        memcpy(di->di_net.hwaddr, eth_current->enetaddr, 6);
  66
  67        debugf("device found, returning cookie 0x%08x\n",
  68                (u_int32_t)di->cookie);
  69
  70        return 1;
  71}
  72
  73int dev_write_net(void *cookie, void *buf, int len)
  74{
  75        /* XXX verify that cookie points to a valid net device??? */
  76
  77        return eth_send(buf, len);
  78}
  79
  80int dev_read_net(void *cookie, void *buf, int len)
  81{
  82        /* XXX verify that cookie points to a valid net device??? */
  83
  84        return eth_receive(buf, len);
  85}
  86
  87#else
  88
  89int dev_open_net(void *cookie)
  90{
  91        return API_ENODEV;
  92}
  93
  94int dev_close_net(void *cookie)
  95{
  96        return API_ENODEV;
  97}
  98
  99int dev_enum_net(struct device_info *di)
 100{
 101        return 0;
 102}
 103
 104int dev_write_net(void *cookie, void *buf, int len)
 105{
 106        return API_ENODEV;
 107}
 108
 109int dev_read_net(void *cookie, void *buf, int len)
 110{
 111        return API_ENODEV;
 112}
 113
 114#endif
 115