diff options
author | Rafal Jaworowski <raj@semihalf.com> | 2008-01-09 19:39:36 +0100 |
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committer | Rafal Jaworowski <raj@semihalf.com> | 2008-01-09 19:39:36 +0100 |
commit | 500856eb1707ed17d9204baa61dd59948d3b2899 (patch) | |
tree | e29338498cbf1b92ad496271e65934b890115545 /api/api_net.c | |
parent | 26a41790f8eba19ad450e18ae91351daf485b3e2 (diff) |
API for external applications.
This is an API for external (standalone) applications running on top of
U-Boot, and is meant to be more extensible and robust than the existing
jumptable mechanism. It is similar to UNIX syscall approach. See api/README
for more details.
Included is the demo application using this new framework (api_examples).
Please note this is still an experimental feature, and is turned off by
default.
Signed-off-by: Rafal Jaworowski <raj@semihalf.com>
Diffstat (limited to 'api/api_net.c')
-rw-r--r-- | api/api_net.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/api/api_net.c b/api/api_net.c new file mode 100644 index 0000000000..9b20a1740c --- /dev/null +++ b/api/api_net.c @@ -0,0 +1,113 @@ +/* + * (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> + +#if defined(CONFIG_API) + +#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); +} + +#endif /* CONFIG_API */ |