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