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 */ 114