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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> | |
27 | ||
28 | #if defined(CONFIG_API) | |
29 | ||
30 | #include <common.h> | |
31 | #include <net.h> | |
32 | #include <linux/types.h> | |
33 | #include <api_public.h> | |
34 | ||
35 | DECLARE_GLOBAL_DATA_PTR; | |
36 | ||
37 | #define DEBUG | |
38 | #undef DEBUG | |
39 | ||
40 | #if !defined(CONFIG_NET_MULTI) | |
41 | #error "API/net is currently only available for platforms with CONFIG_NET_MULTI" | |
42 | #endif | |
43 | ||
44 | #ifdef DEBUG | |
45 | #define debugf(fmt, args...) do { printf("%s(): ", __func__); printf(fmt, ##args); } while (0) | |
46 | #else | |
47 | #define debugf(fmt, args...) | |
48 | #endif | |
49 | ||
50 | #define errf(fmt, args...) do { printf("ERROR @ %s(): ", __func__); printf(fmt, ##args); } while (0) | |
51 | ||
52 | ||
53 | static int dev_valid_net(void *cookie) | |
54 | { | |
55 | return ((void *)eth_get_dev() == cookie) ? 1 : 0; | |
56 | } | |
57 | ||
58 | int dev_open_net(void *cookie) | |
59 | { | |
60 | if (!dev_valid_net(cookie)) | |
61 | return API_ENODEV; | |
62 | ||
63 | if (eth_init(gd->bd) < 0) | |
64 | return API_EIO; | |
65 | ||
66 | return 0; | |
67 | } | |
68 | ||
69 | int dev_close_net(void *cookie) | |
70 | { | |
71 | if (!dev_valid_net(cookie)) | |
72 | return API_ENODEV; | |
73 | ||
74 | eth_halt(); | |
75 | return 0; | |
76 | } | |
77 | ||
78 | /* | |
79 | * There can only be one active eth interface at a time - use what is | |
80 | * currently set to eth_current | |
81 | */ | |
82 | int dev_enum_net(struct device_info *di) | |
83 | { | |
84 | struct eth_device *eth_current = eth_get_dev(); | |
85 | ||
86 | di->type = DEV_TYP_NET; | |
87 | di->cookie = (void *)eth_current; | |
88 | if (di->cookie == NULL) | |
89 | return 0; | |
90 | ||
91 | memcpy(di->di_net.hwaddr, eth_current->enetaddr, 6); | |
92 | ||
93 | debugf("device found, returning cookie 0x%08x\n", | |
94 | (u_int32_t)di->cookie); | |
95 | ||
96 | return 1; | |
97 | } | |
98 | ||
99 | int dev_write_net(void *cookie, void *buf, int len) | |
100 | { | |
101 | /* XXX verify that cookie points to a valid net device??? */ | |
102 | ||
103 | return eth_send(buf, len); | |
104 | } | |
105 | ||
106 | int dev_read_net(void *cookie, void *buf, int len) | |
107 | { | |
108 | /* XXX verify that cookie points to a valid net device??? */ | |
109 | ||
110 | return eth_receive(buf, len); | |
111 | } | |
112 | ||
113 | #endif /* CONFIG_API */ |