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Simon Glass818f91e2016-01-17 14:51:57 -07001/*
2 * (C) Copyright 2001-2015
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 * Joe Hershberger, National Instruments
5 *
6 * SPDX-License-Identifier: GPL-2.0+
7 */
8
9#include <common.h>
Simon Glass8607a6b2016-01-17 14:51:59 -070010#include <dm.h>
Simon Glass818f91e2016-01-17 14:51:57 -070011#include <miiphy.h>
Simon Glass8607a6b2016-01-17 14:51:59 -070012#include <net.h>
Simon Glass818f91e2016-01-17 14:51:57 -070013#include "eth_internal.h"
14
Simon Glass9987ecd2016-01-17 14:51:58 -070015void eth_parse_enetaddr(const char *addr, uchar *enetaddr)
16{
17 char *end;
18 int i;
19
20 for (i = 0; i < 6; ++i) {
21 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
22 if (addr)
23 addr = (*end) ? end + 1 : end;
24 }
25}
26
27int eth_getenv_enetaddr(const char *name, uchar *enetaddr)
28{
29 eth_parse_enetaddr(getenv(name), enetaddr);
30 return is_valid_ethaddr(enetaddr);
31}
32
33int eth_setenv_enetaddr(const char *name, const uchar *enetaddr)
34{
oliver@schinagl.nl9f455bc2016-11-25 16:30:20 +010035 char buf[ARP_HLEN_ASCII + 1];
Simon Glass9987ecd2016-01-17 14:51:58 -070036
37 sprintf(buf, "%pM", enetaddr);
38
39 return setenv(name, buf);
40}
41
42int eth_getenv_enetaddr_by_index(const char *base_name, int index,
43 uchar *enetaddr)
44{
45 char enetvar[32];
46 sprintf(enetvar, index ? "%s%daddr" : "%saddr", base_name, index);
47 return eth_getenv_enetaddr(enetvar, enetaddr);
48}
49
50int eth_setenv_enetaddr_by_index(const char *base_name, int index,
51 uchar *enetaddr)
52{
53 char enetvar[32];
54 sprintf(enetvar, index ? "%s%daddr" : "%saddr", base_name, index);
55 return eth_setenv_enetaddr(enetvar, enetaddr);
56}
57
Simon Glass818f91e2016-01-17 14:51:57 -070058void eth_common_init(void)
59{
60 bootstage_mark(BOOTSTAGE_ID_NET_ETH_START);
61#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) || defined(CONFIG_PHYLIB)
62 miiphy_init();
63#endif
64
65#ifdef CONFIG_PHYLIB
66 phy_init();
67#endif
68}
Simon Glass8607a6b2016-01-17 14:51:59 -070069
70int eth_mac_skip(int index)
71{
72 char enetvar[15];
73 char *skip_state;
74
75 sprintf(enetvar, index ? "eth%dmacskip" : "ethmacskip", index);
76 skip_state = getenv(enetvar);
77 return skip_state != NULL;
78}
79
80void eth_current_changed(void)
81{
82 char *act = getenv("ethact");
83 char *ethrotate;
84
85 /*
86 * The call to eth_get_dev() below has a side effect of rotating
87 * ethernet device if uc_priv->current == NULL. This is not what
88 * we want when 'ethrotate' variable is 'no'.
89 */
90 ethrotate = getenv("ethrotate");
91 if ((ethrotate != NULL) && (strcmp(ethrotate, "no") == 0))
92 return;
93
94 /* update current ethernet name */
95 if (eth_get_dev()) {
96 if (act == NULL || strcmp(act, eth_get_name()) != 0)
97 setenv("ethact", eth_get_name());
98 }
99 /*
100 * remove the variable completely if there is no active
101 * interface
102 */
103 else if (act != NULL)
104 setenv("ethact", NULL);
105}
106
107void eth_try_another(int first_restart)
108{
109 static void *first_failed;
110 char *ethrotate;
111
112 /*
113 * Do not rotate between network interfaces when
114 * 'ethrotate' variable is set to 'no'.
115 */
116 ethrotate = getenv("ethrotate");
117 if ((ethrotate != NULL) && (strcmp(ethrotate, "no") == 0))
118 return;
119
120 if (!eth_get_dev())
121 return;
122
123 if (first_restart)
124 first_failed = eth_get_dev();
125
126 eth_set_current_to_next();
127
128 eth_current_changed();
129
130 if (first_failed == eth_get_dev())
131 net_restart_wrap = 1;
132}
133
134void eth_set_current(void)
135{
136 static char *act;
137 static int env_changed_id;
138 int env_id;
139
140 env_id = get_env_id();
141 if ((act == NULL) || (env_changed_id != env_id)) {
142 act = getenv("ethact");
143 env_changed_id = env_id;
144 }
145
146 if (act == NULL) {
147 char *ethprime = getenv("ethprime");
148 void *dev = NULL;
149
150 if (ethprime)
151 dev = eth_get_dev_by_name(ethprime);
152 if (dev)
153 eth_set_dev(dev);
154 else
155 eth_set_dev(NULL);
156 } else {
157 eth_set_dev(eth_get_dev_by_name(act));
158 }
159
160 eth_current_changed();
161}
162
163const char *eth_get_name(void)
164{
165 return eth_get_dev() ? eth_get_dev()->name : "unknown";
166}