[thirdparty/u-boot.git] / net / eth_common.c

/*
 * (C) Copyright 2001-2015
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 * Joe Hershberger, National Instruments
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <dm.h>
#include <environment.h>
#include <miiphy.h>
#include <net.h>
#include "eth_internal.h"

int eth_env_get_enetaddr_by_index(const char *base_name, int index,
				 uchar *enetaddr)
{
	char enetvar[32];
	sprintf(enetvar, index ? "%s%daddr" : "%saddr", base_name, index);
	return eth_env_get_enetaddr(enetvar, enetaddr);
}

int eth_env_set_enetaddr_by_index(const char *base_name, int index,
				 uchar *enetaddr)
{
	char enetvar[32];
	sprintf(enetvar, index ? "%s%daddr" : "%saddr", base_name, index);
	return eth_env_set_enetaddr(enetvar, enetaddr);
}

void eth_common_init(void)
{
	bootstage_mark(BOOTSTAGE_ID_NET_ETH_START);
#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) || defined(CONFIG_PHYLIB)
	miiphy_init();
#endif

#ifdef CONFIG_PHYLIB
	phy_init();
#endif
}

int eth_mac_skip(int index)
{
	char enetvar[15];
	char *skip_state;

	sprintf(enetvar, index ? "eth%dmacskip" : "ethmacskip", index);
	skip_state = env_get(enetvar);
	return skip_state != NULL;
}

void eth_current_changed(void)
{
	char *act = env_get("ethact");
	char *ethrotate;

	/*
	 * The call to eth_get_dev() below has a side effect of rotating
	 * ethernet device if uc_priv->current == NULL. This is not what
	 * we want when 'ethrotate' variable is 'no'.
	 */
	ethrotate = env_get("ethrotate");
	if ((ethrotate != NULL) && (strcmp(ethrotate, "no") == 0))
		return;

	/* update current ethernet name */
	if (eth_get_dev()) {
		if (act == NULL || strcmp(act, eth_get_name()) != 0)
			env_set("ethact", eth_get_name());
	}
	/*
	 * remove the variable completely if there is no active
	 * interface
	 */
	else if (act != NULL)
		env_set("ethact", NULL);
}

void eth_try_another(int first_restart)
{
	static void *first_failed;
	char *ethrotate;

	/*
	 * Do not rotate between network interfaces when
	 * 'ethrotate' variable is set to 'no'.
	 */
	ethrotate = env_get("ethrotate");
	if ((ethrotate != NULL) && (strcmp(ethrotate, "no") == 0))
		return;

	if (!eth_get_dev())
		return;

	if (first_restart)
		first_failed = eth_get_dev();

	eth_set_current_to_next();

	eth_current_changed();

	if (first_failed == eth_get_dev())
		net_restart_wrap = 1;
}

void eth_set_current(void)
{
	static char *act;
	static int  env_changed_id;
	int	env_id;

	env_id = get_env_id();
	if ((act == NULL) || (env_changed_id != env_id)) {
		act = env_get("ethact");
		env_changed_id = env_id;
	}

	if (act == NULL) {
		char *ethprime = env_get("ethprime");
		void *dev = NULL;

		if (ethprime)
			dev = eth_get_dev_by_name(ethprime);
		if (dev)
			eth_set_dev(dev);
		else
			eth_set_dev(NULL);
	} else {
		eth_set_dev(eth_get_dev_by_name(act));
	}

	eth_current_changed();
}

const char *eth_get_name(void)
{
	return eth_get_dev() ? eth_get_dev()->name : "unknown";
}
Commit	Line	Data
818f91eb SG	1	/*
	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>
8607a6bf	10	#include <dm.h>
9925f1db	11	#include <environment.h>
818f91eb	12	#include <miiphy.h>
8607a6bf	13	#include <net.h>
818f91eb SG	14	#include "eth_internal.h"
818f91eb SG	15
35affd7a	16	int eth_env_get_enetaddr_by_index(const char *base_name, int index,
9987ecdd SG	17	uchar *enetaddr)
	18	{
	19	char enetvar[32];
	20	sprintf(enetvar, index ? "%s%daddr" : "%saddr", base_name, index);
35affd7a	21	return eth_env_get_enetaddr(enetvar, enetaddr);
9987ecdd SG	22	}
9987ecdd SG	23
fd1e959e	24	int eth_env_set_enetaddr_by_index(const char *base_name, int index,
9987ecdd SG	25	uchar *enetaddr)
	26	{
	27	char enetvar[32];
	28	sprintf(enetvar, index ? "%s%daddr" : "%saddr", base_name, index);
fd1e959e	29	return eth_env_set_enetaddr(enetvar, enetaddr);
9987ecdd SG	30	}
9987ecdd SG	31
818f91eb SG	32	void eth_common_init(void)
	33	{
	34	bootstage_mark(BOOTSTAGE_ID_NET_ETH_START);
	35	#if defined(CONFIG_MII) \|\| defined(CONFIG_CMD_MII) \|\| defined(CONFIG_PHYLIB)
	36	miiphy_init();
	37	#endif
	38
	39	#ifdef CONFIG_PHYLIB
	40	phy_init();
	41	#endif
	42	}
8607a6bf SG	43
	44	int eth_mac_skip(int index)
	45	{
	46	char enetvar[15];
	47	char *skip_state;
	48
	49	sprintf(enetvar, index ? "eth%dmacskip" : "ethmacskip", index);
00caae6d	50	skip_state = env_get(enetvar);
8607a6bf SG	51	return skip_state != NULL;
	52	}
	53
	54	void eth_current_changed(void)
	55	{
00caae6d	56	char *act = env_get("ethact");
8607a6bf SG	57	char *ethrotate;
	58
	59	/*
	60	* The call to eth_get_dev() below has a side effect of rotating
	61	* ethernet device if uc_priv->current == NULL. This is not what
	62	* we want when 'ethrotate' variable is 'no'.
	63	*/
00caae6d	64	ethrotate = env_get("ethrotate");
8607a6bf SG	65	if ((ethrotate != NULL) && (strcmp(ethrotate, "no") == 0))
	66	return;
	67
	68	/* update current ethernet name */
	69	if (eth_get_dev()) {
	70	if (act == NULL \|\| strcmp(act, eth_get_name()) != 0)
382bee57	71	env_set("ethact", eth_get_name());
8607a6bf SG	72	}
	73	/*
	74	* remove the variable completely if there is no active
	75	* interface
	76	*/
	77	else if (act != NULL)
382bee57	78	env_set("ethact", NULL);
8607a6bf SG	79	}
	80
	81	void eth_try_another(int first_restart)
	82	{
	83	static void *first_failed;
	84	char *ethrotate;
	85
	86	/*
	87	* Do not rotate between network interfaces when
	88	* 'ethrotate' variable is set to 'no'.
	89	*/
00caae6d	90	ethrotate = env_get("ethrotate");
8607a6bf SG	91	if ((ethrotate != NULL) && (strcmp(ethrotate, "no") == 0))
	92	return;
	93
	94	if (!eth_get_dev())
	95	return;
	96
	97	if (first_restart)
	98	first_failed = eth_get_dev();
	99
	100	eth_set_current_to_next();
	101
	102	eth_current_changed();
	103
	104	if (first_failed == eth_get_dev())
	105	net_restart_wrap = 1;
	106	}
	107
	108	void eth_set_current(void)
	109	{
	110	static char *act;
	111	static int env_changed_id;
	112	int env_id;
	113
	114	env_id = get_env_id();
	115	if ((act == NULL) \|\| (env_changed_id != env_id)) {
00caae6d	116	act = env_get("ethact");
8607a6bf SG	117	env_changed_id = env_id;
	118	}
	119
	120	if (act == NULL) {
00caae6d	121	char *ethprime = env_get("ethprime");
8607a6bf SG	122	void *dev = NULL;
	123
	124	if (ethprime)
	125	dev = eth_get_dev_by_name(ethprime);
	126	if (dev)
	127	eth_set_dev(dev);
	128	else
	129	eth_set_dev(NULL);
	130	} else {
	131	eth_set_dev(eth_get_dev_by_name(act));
	132	}
	133
	134	eth_current_changed();
	135	}
	136
	137	const char *eth_get_name(void)
	138	{
	139	return eth_get_dev() ? eth_get_dev()->name : "unknown";
	140	}