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 #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 75 /* 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 } 109