[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

#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
500856eb RJ	37	#ifdef DEBUG
	38	#define debugf(fmt, args...) do { printf("%s(): ", __func__); printf(fmt, ##args); } while (0)
	39	#else
	40	#define debugf(fmt, args...)
	41	#endif
	42
	43	#define errf(fmt, args...) do { printf("ERROR @ %s(): ", __func__); printf(fmt, ##args); } while (0)
	44
	45
	46	static int dev_valid_net(void *cookie)
	47	{
	48	return ((void *)eth_get_dev() == cookie) ? 1 : 0;
	49	}
	50
	51	int dev_open_net(void *cookie)
	52	{
	53	if (!dev_valid_net(cookie))
	54	return API_ENODEV;
	55
	56	if (eth_init(gd->bd) < 0)
	57	return API_EIO;
	58
	59	return 0;
	60	}
	61
	62	int dev_close_net(void *cookie)
	63	{
	64	if (!dev_valid_net(cookie))
	65	return API_ENODEV;
	66
	67	eth_halt();
	68	return 0;
	69	}
	70
d3a6532c	71	/*
500856eb RJ	72	* There can only be one active eth interface at a time - use what is
	73	* currently set to eth_current
	74	*/
	75	int dev_enum_net(struct device_info *di)
	76	{
	77	struct eth_device *eth_current = eth_get_dev();
	78
	79	di->type = DEV_TYP_NET;
	80	di->cookie = (void *)eth_current;
	81	if (di->cookie == NULL)
	82	return 0;
	83
	84	memcpy(di->di_net.hwaddr, eth_current->enetaddr, 6);
	85
	86	debugf("device found, returning cookie 0x%08x\n",
	87	(u_int32_t)di->cookie);
	88
	89	return 1;
	90	}
	91
	92	int dev_write_net(void cookie, void buf, int len)
	93	{
	94	/* XXX verify that cookie points to a valid net device??? */
	95
	96	return eth_send(buf, len);
	97	}
	98
	99	int dev_read_net(void cookie, void buf, int len)
	100	{
	101	/* XXX verify that cookie points to a valid net device??? */
	102
	103	return eth_receive(buf, len);
	104	}