1/* 2 * Convenience functions for bluetooth. 3 * 4 * Copyright (C) 2008 Andrzej Zaborowski <balrog@zabor.org> 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License as 8 * published by the Free Software Foundation; either version 2 or 9 * (at your option) version 3 of the License. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License along 17 * with this program; if not, see <http://www.gnu.org/licenses/>. 18 */ 19 20#include "qemu-common.h" 21#include "net.h" 22#include "bt.h" 23 24/* Slave implementations can ignore this */ 25static void bt_dummy_lmp_mode_change(struct bt_link_s *link) 26{ 27} 28 29/* Slaves should never receive these PDUs */ 30static void bt_dummy_lmp_connection_complete(struct bt_link_s *link) 31{ 32 if (link->slave->reject_reason) 33 fprintf(stderr, "%s: stray LMP_not_accepted received, fixme\n", 34 __FUNCTION__); 35 else 36 fprintf(stderr, "%s: stray LMP_accepted received, fixme\n", 37 __FUNCTION__); 38 exit(-1); 39} 40 41static void bt_dummy_lmp_disconnect_master(struct bt_link_s *link) 42{ 43 fprintf(stderr, "%s: stray LMP_detach received, fixme\n", __FUNCTION__); 44 exit(-1); 45} 46 47static void bt_dummy_lmp_acl_resp(struct bt_link_s *link, 48 const uint8_t *data, int start, int len) 49{ 50 fprintf(stderr, "%s: stray ACL response PDU, fixme\n", __FUNCTION__); 51 exit(-1); 52} 53 54/* Slaves that don't hold any additional per link state can use these */ 55static void bt_dummy_lmp_connection_request(struct bt_link_s *req) 56{ 57 struct bt_link_s *link = qemu_mallocz(sizeof(struct bt_link_s)); 58 59 link->slave = req->slave; 60 link->host = req->host; 61 62 req->host->reject_reason = 0; 63 req->host->lmp_connection_complete(link); 64} 65 66static void bt_dummy_lmp_disconnect_slave(struct bt_link_s *link) 67{ 68 qemu_free(link); 69} 70 71static void bt_dummy_destroy(struct bt_device_s *device) 72{ 73 bt_device_done(device); 74 qemu_free(device); 75} 76 77static int bt_dev_idx = 0; 78 79void bt_device_init(struct bt_device_s *dev, struct bt_scatternet_s *net) 80{ 81 memset(dev, 0, sizeof(*dev)); 82 dev->inquiry_scan = 1; 83 dev->page_scan = 1; 84 85 dev->bd_addr.b[0] = bt_dev_idx & 0xff; 86 dev->bd_addr.b[1] = bt_dev_idx >> 8; 87 dev->bd_addr.b[2] = 0xd0; 88 dev->bd_addr.b[3] = 0xba; 89 dev->bd_addr.b[4] = 0xbe; 90 dev->bd_addr.b[5] = 0xba; 91 bt_dev_idx ++; 92 93 /* Simple slave-only devices need to implement only .lmp_acl_data */ 94 dev->lmp_connection_complete = bt_dummy_lmp_connection_complete; 95 dev->lmp_disconnect_master = bt_dummy_lmp_disconnect_master; 96 dev->lmp_acl_resp = bt_dummy_lmp_acl_resp; 97 dev->lmp_mode_change = bt_dummy_lmp_mode_change; 98 dev->lmp_connection_request = bt_dummy_lmp_connection_request; 99 dev->lmp_disconnect_slave = bt_dummy_lmp_disconnect_slave; 100 101 dev->handle_destroy = bt_dummy_destroy; 102 103 dev->net = net; 104 dev->next = net->slave; 105 net->slave = dev; 106} 107 108void bt_device_done(struct bt_device_s *dev) 109{ 110 struct bt_device_s **p = &dev->net->slave; 111 112 while (*p && *p != dev) 113 p = &(*p)->next; 114 if (*p != dev) { 115 fprintf(stderr, "%s: bad bt device \"%s\"\n", __FUNCTION__, 116 dev->lmp_name ?: "(null)"); 117 exit(-1); 118 } 119 120 *p = dev->next; 121} 122