xref: /illumos-kvm-cmd/hw/bt.c (revision 68396ea9)
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 */
bt_dummy_lmp_mode_change(struct bt_link_s * link)25 static void bt_dummy_lmp_mode_change(struct bt_link_s *link)
26 {
27 }
28 
29 /* Slaves should never receive these PDUs */
bt_dummy_lmp_connection_complete(struct bt_link_s * link)30 static 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 
bt_dummy_lmp_disconnect_master(struct bt_link_s * link)41 static 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 
bt_dummy_lmp_acl_resp(struct bt_link_s * link,const uint8_t * data,int start,int len)47 static 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 */
bt_dummy_lmp_connection_request(struct bt_link_s * req)55 static 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 
bt_dummy_lmp_disconnect_slave(struct bt_link_s * link)66 static void bt_dummy_lmp_disconnect_slave(struct bt_link_s *link)
67 {
68     qemu_free(link);
69 }
70 
bt_dummy_destroy(struct bt_device_s * device)71 static void bt_dummy_destroy(struct bt_device_s *device)
72 {
73     bt_device_done(device);
74     qemu_free(device);
75 }
76 
77 static int bt_dev_idx = 0;
78 
bt_device_init(struct bt_device_s * dev,struct bt_scatternet_s * net)79 void 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 
bt_device_done(struct bt_device_s * dev)108 void 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