[people/ms/u-boot.git] / api / api_net.c

/*
 * (C) Copyright 2007 Semihalf
 *
 * Written by: Rafal Jaworowski <raj@semihalf.com>
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 *
 */

#include <config.h>
#include <common.h>
#include <net.h>
#include <linux/types.h>
#include <api_public.h>

DECLARE_GLOBAL_DATA_PTR;

#define DEBUG
#undef DEBUG

#if !defined(CONFIG_NET_MULTI)
#error "API/net is currently only available for platforms with CONFIG_NET_MULTI"
#endif

#ifdef DEBUG
#define debugf(fmt, args...) do { printf("%s(): ", __func__); printf(fmt, ##args); } while (0)
#else
#define debugf(fmt, args...)
#endif

#define errf(fmt, args...) do { printf("ERROR @ %s(): ", __func__); printf(fmt, ##args); } while (0)


static int dev_valid_net(void *cookie)
{
	return ((void *)eth_get_dev() == cookie) ? 1 : 0;
}

int dev_open_net(void *cookie)
{
	if (!dev_valid_net(cookie))
		return API_ENODEV;

	if (eth_init(gd->bd) < 0)
		return API_EIO;

	return 0;
}

int dev_close_net(void *cookie)
{
	if (!dev_valid_net(cookie))
		return API_ENODEV;

	eth_halt();
	return 0;
}

/*
 * There can only be one active eth interface at a time - use what is
 * currently set to eth_current
 */
int dev_enum_net(struct device_info *di)
{
	struct eth_device *eth_current = eth_get_dev();

	di->type = DEV_TYP_NET;
	di->cookie = (void *)eth_current;
	if (di->cookie == NULL)
		return 0;

	memcpy(di->di_net.hwaddr, eth_current->enetaddr, 6);

	debugf("device found, returning cookie 0x%08x\n",
		(u_int32_t)di->cookie);

	return 1;
}

int dev_write_net(void *cookie, void *buf, int len)
{
	/* XXX verify that cookie points to a valid net device??? */

	return eth_send(buf, len);
}

int dev_read_net(void *cookie, void *buf, int len)
{
	/* XXX verify that cookie points to a valid net device??? */

	return eth_receive(buf, len);
}
Commit	Line	Data
500856eb RJ	1	/*
	2	* (C) Copyright 2007 Semihalf
	3	*
	4	* Written by: Rafal Jaworowski <raj@semihalf.com>
	5	*
	6	* See file CREDITS for list of people who contributed to this
	7	* project.
	8	*
	9	* This program is free software; you can redistribute it and/or
	10	* modify it under the terms of the GNU General Public License as
	11	* published by the Free Software Foundation; either version 2 of
	12	* the License, or (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	22	* MA 02111-1307 USA
	23	*
	24	*/
	25
	26	#include <config.h>
500856eb RJ	27	#include <common.h>
	28	#include <net.h>
	29	#include <linux/types.h>
	30	#include <api_public.h>
	31
	32	DECLARE_GLOBAL_DATA_PTR;
	33
	34	#define DEBUG
	35	#undef DEBUG
	36
	37	#if !defined(CONFIG_NET_MULTI)
	38	#error "API/net is currently only available for platforms with CONFIG_NET_MULTI"
	39	#endif
	40
	41	#ifdef DEBUG
	42	#define debugf(fmt, args...) do { printf("%s(): ", __func__); printf(fmt, ##args); } while (0)
	43	#else
	44	#define debugf(fmt, args...)
	45	#endif
	46
	47	#define errf(fmt, args...) do { printf("ERROR @ %s(): ", __func__); printf(fmt, ##args); } while (0)
	48
	49
	50	static int dev_valid_net(void *cookie)
	51	{
	52	return ((void *)eth_get_dev() == cookie) ? 1 : 0;
	53	}
	54
	55	int dev_open_net(void *cookie)
	56	{
	57	if (!dev_valid_net(cookie))
	58	return API_ENODEV;
	59
	60	if (eth_init(gd->bd) < 0)
	61	return API_EIO;
	62
	63	return 0;
	64	}
	65
	66	int dev_close_net(void *cookie)
	67	{
	68	if (!dev_valid_net(cookie))
	69	return API_ENODEV;
	70
	71	eth_halt();
	72	return 0;
	73	}
	74
d3a6532c	75	/*
500856eb RJ	76	* There can only be one active eth interface at a time - use what is
	77	* currently set to eth_current
	78	*/
	79	int dev_enum_net(struct device_info *di)
	80	{
	81	struct eth_device *eth_current = eth_get_dev();
	82
	83	di->type = DEV_TYP_NET;
	84	di->cookie = (void *)eth_current;
	85	if (di->cookie == NULL)
	86	return 0;
	87
	88	memcpy(di->di_net.hwaddr, eth_current->enetaddr, 6);
	89
	90	debugf("device found, returning cookie 0x%08x\n",
	91	(u_int32_t)di->cookie);
	92
	93	return 1;
	94	}
	95
	96	int dev_write_net(void cookie, void buf, int len)
	97	{
	98	/* XXX verify that cookie points to a valid net device??? */
	99
	100	return eth_send(buf, len);
	101	}
	102
	103	int dev_read_net(void cookie, void buf, int len)
	104	{
	105	/* XXX verify that cookie points to a valid net device??? */
	106
	107	return eth_receive(buf, len);
	108	}