2 * (C) Copyright 2001-2015
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 * Joe Hershberger, National Instruments
6 * SPDX-License-Identifier: GPL-2.0+
13 #include "eth_internal.h"
15 void eth_parse_enetaddr(const char *addr
, uchar
*enetaddr
)
20 for (i
= 0; i
< 6; ++i
) {
21 enetaddr
[i
] = addr
? simple_strtoul(addr
, &end
, 16) : 0;
23 addr
= (*end
) ? end
+ 1 : end
;
27 int eth_getenv_enetaddr(const char *name
, uchar
*enetaddr
)
29 eth_parse_enetaddr(getenv(name
), enetaddr
);
30 return is_valid_ethaddr(enetaddr
);
33 int eth_setenv_enetaddr(const char *name
, const uchar
*enetaddr
)
35 char buf
[ARP_HLEN_ASCII
+ 1];
37 if (eth_getenv_enetaddr(name
, (uchar
*)buf
))
40 sprintf(buf
, "%pM", enetaddr
);
42 return setenv(name
, buf
);
45 int eth_getenv_enetaddr_by_index(const char *base_name
, int index
,
49 sprintf(enetvar
, index
? "%s%daddr" : "%saddr", base_name
, index
);
50 return eth_getenv_enetaddr(enetvar
, enetaddr
);
53 int eth_setenv_enetaddr_by_index(const char *base_name
, int index
,
57 sprintf(enetvar
, index
? "%s%daddr" : "%saddr", base_name
, index
);
58 return eth_setenv_enetaddr(enetvar
, enetaddr
);
61 void eth_common_init(void)
63 bootstage_mark(BOOTSTAGE_ID_NET_ETH_START
);
64 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) || defined(CONFIG_PHYLIB)
73 int eth_mac_skip(int index
)
78 sprintf(enetvar
, index
? "eth%dmacskip" : "ethmacskip", index
);
79 skip_state
= getenv(enetvar
);
80 return skip_state
!= NULL
;
83 void eth_current_changed(void)
85 char *act
= getenv("ethact");
89 * The call to eth_get_dev() below has a side effect of rotating
90 * ethernet device if uc_priv->current == NULL. This is not what
91 * we want when 'ethrotate' variable is 'no'.
93 ethrotate
= getenv("ethrotate");
94 if ((ethrotate
!= NULL
) && (strcmp(ethrotate
, "no") == 0))
97 /* update current ethernet name */
99 if (act
== NULL
|| strcmp(act
, eth_get_name()) != 0)
100 setenv("ethact", eth_get_name());
103 * remove the variable completely if there is no active
106 else if (act
!= NULL
)
107 setenv("ethact", NULL
);
110 void eth_try_another(int first_restart
)
112 static void *first_failed
;
116 * Do not rotate between network interfaces when
117 * 'ethrotate' variable is set to 'no'.
119 ethrotate
= getenv("ethrotate");
120 if ((ethrotate
!= NULL
) && (strcmp(ethrotate
, "no") == 0))
127 first_failed
= eth_get_dev();
129 eth_set_current_to_next();
131 eth_current_changed();
133 if (first_failed
== eth_get_dev())
134 net_restart_wrap
= 1;
137 void eth_set_current(void)
140 static int env_changed_id
;
143 env_id
= get_env_id();
144 if ((act
== NULL
) || (env_changed_id
!= env_id
)) {
145 act
= getenv("ethact");
146 env_changed_id
= env_id
;
150 char *ethprime
= getenv("ethprime");
154 dev
= eth_get_dev_by_name(ethprime
);
160 eth_set_dev(eth_get_dev_by_name(act
));
163 eth_current_changed();
166 const char *eth_get_name(void)
168 return eth_get_dev() ? eth_get_dev()->name
: "unknown";