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 #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 71 /* 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 } 105