1 /* 2 * (C) Copyright 2007 Semihalf 3 * 4 * Written by: Rafal Jaworowski <raj@semihalf.com> 5 * 6 * SPDX-License-Identifier: GPL-2.0+ 7 */ 8 9 #include <config.h> 10 #include <common.h> 11 #include <net.h> 12 #include <linux/types.h> 13 #include <api_public.h> 14 15 DECLARE_GLOBAL_DATA_PTR; 16 17 #define DEBUG 18 #undef DEBUG 19 20 #ifdef DEBUG 21 #define debugf(fmt, args...) do { printf("%s(): ", __func__); printf(fmt, ##args); } while (0) 22 #else 23 #define debugf(fmt, args...) 24 #endif 25 26 #define errf(fmt, args...) do { printf("ERROR @ %s(): ", __func__); printf(fmt, ##args); } while (0) 27 28 #if defined(CONFIG_CMD_NET) && !defined(CONFIG_DM_ETH) 29 30 static int dev_valid_net(void *cookie) 31 { 32 return ((void *)eth_get_dev() == cookie) ? 1 : 0; 33 } 34 35 int dev_open_net(void *cookie) 36 { 37 if (!dev_valid_net(cookie)) 38 return API_ENODEV; 39 40 if (eth_init() < 0) 41 return API_EIO; 42 43 return 0; 44 } 45 46 int dev_close_net(void *cookie) 47 { 48 if (!dev_valid_net(cookie)) 49 return API_ENODEV; 50 51 eth_halt(); 52 return 0; 53 } 54 55 /* 56 * There can only be one active eth interface at a time - use what is 57 * currently set to eth_current 58 */ 59 int dev_enum_net(struct device_info *di) 60 { 61 struct eth_device *eth_current = eth_get_dev(); 62 63 di->type = DEV_TYP_NET; 64 di->cookie = (void *)eth_current; 65 if (di->cookie == NULL) 66 return 0; 67 68 memcpy(di->di_net.hwaddr, eth_current->enetaddr, 6); 69 70 debugf("device found, returning cookie 0x%08x\n", 71 (u_int32_t)di->cookie); 72 73 return 1; 74 } 75 76 int dev_write_net(void *cookie, void *buf, int len) 77 { 78 /* XXX verify that cookie points to a valid net device??? */ 79 80 return eth_send(buf, len); 81 } 82 83 int dev_read_net(void *cookie, void *buf, int len) 84 { 85 /* XXX verify that cookie points to a valid net device??? */ 86 87 return eth_receive(buf, len); 88 } 89 90 #else 91 92 int dev_open_net(void *cookie) 93 { 94 return API_ENODEV; 95 } 96 97 int dev_close_net(void *cookie) 98 { 99 return API_ENODEV; 100 } 101 102 int dev_enum_net(struct device_info *di) 103 { 104 return 0; 105 } 106 107 int dev_write_net(void *cookie, void *buf, int len) 108 { 109 return API_ENODEV; 110 } 111 112 int dev_read_net(void *cookie, void *buf, int len) 113 { 114 return API_ENODEV; 115 } 116 117 #endif 118