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

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

#include <common.h>
#include <bootstage.h>
#include <dm.h>
#include <env.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 CONFIG_IS_ENABLED(ETH)
#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) || defined(CONFIG_PHYLIB)
	miiphy_init();
#endif
#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 = env_get_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
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
818f91eb SG	2	/*
	3	* (C) Copyright 2001-2015
	4	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	5	* Joe Hershberger, National Instruments
818f91eb SG	6	*/
	7
	8	#include <common.h>
52f24238	9	#include <bootstage.h>
8607a6bf	10	#include <dm.h>
f1f0ae6a	11	#include <env.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);
9f664920	35	#if CONFIG_IS_ENABLED(ETH)
818f91eb SG	36	#if defined(CONFIG_MII) \|\| defined(CONFIG_CMD_MII) \|\| defined(CONFIG_PHYLIB)
	37	miiphy_init();
	38	#endif
9f664920	39	#endif
818f91eb	40	}
8607a6bf SG	41
	42	int eth_mac_skip(int index)
	43	{
	44	char enetvar[15];
	45	char *skip_state;
	46
	47	sprintf(enetvar, index ? "eth%dmacskip" : "ethmacskip", index);
00caae6d	48	skip_state = env_get(enetvar);
8607a6bf SG	49	return skip_state != NULL;
	50	}
	51
	52	void eth_current_changed(void)
	53	{
00caae6d	54	char *act = env_get("ethact");
8607a6bf SG	55	char *ethrotate;
	56
	57	/*
	58	* The call to eth_get_dev() below has a side effect of rotating
	59	* ethernet device if uc_priv->current == NULL. This is not what
	60	* we want when 'ethrotate' variable is 'no'.
	61	*/
00caae6d	62	ethrotate = env_get("ethrotate");
8607a6bf SG	63	if ((ethrotate != NULL) && (strcmp(ethrotate, "no") == 0))
	64	return;
	65
	66	/* update current ethernet name */
	67	if (eth_get_dev()) {
	68	if (act == NULL \|\| strcmp(act, eth_get_name()) != 0)
382bee57	69	env_set("ethact", eth_get_name());
8607a6bf SG	70	}
	71	/*
	72	* remove the variable completely if there is no active
	73	* interface
	74	*/
	75	else if (act != NULL)
382bee57	76	env_set("ethact", NULL);
8607a6bf SG	77	}
	78
	79	void eth_try_another(int first_restart)
	80	{
	81	static void *first_failed;
	82	char *ethrotate;
	83
	84	/*
	85	* Do not rotate between network interfaces when
	86	* 'ethrotate' variable is set to 'no'.
	87	*/
00caae6d	88	ethrotate = env_get("ethrotate");
8607a6bf SG	89	if ((ethrotate != NULL) && (strcmp(ethrotate, "no") == 0))
	90	return;
	91
	92	if (!eth_get_dev())
	93	return;
	94
	95	if (first_restart)
	96	first_failed = eth_get_dev();
	97
	98	eth_set_current_to_next();
	99
	100	eth_current_changed();
	101
	102	if (first_failed == eth_get_dev())
	103	net_restart_wrap = 1;
	104	}
	105
	106	void eth_set_current(void)
	107	{
	108	static char *act;
	109	static int env_changed_id;
	110	int env_id;
	111
f1f0ae6a	112	env_id = env_get_id();
8607a6bf	113	if ((act == NULL) \|\| (env_changed_id != env_id)) {
00caae6d	114	act = env_get("ethact");
8607a6bf SG	115	env_changed_id = env_id;
	116	}
	117
	118	if (act == NULL) {
00caae6d	119	char *ethprime = env_get("ethprime");
8607a6bf SG	120	void *dev = NULL;
	121
	122	if (ethprime)
	123	dev = eth_get_dev_by_name(ethprime);
	124	if (dev)
	125	eth_set_dev(dev);
	126	else
	127	eth_set_dev(NULL);
	128	} else {
	129	eth_set_dev(eth_get_dev_by_name(act));
	130	}
	131
	132	eth_current_changed();
	133	}
	134
	135	const char *eth_get_name(void)
	136	{
	137	return eth_get_dev() ? eth_get_dev()->name : "unknown";
	138	}