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/osdep.h" |
21 | #include "qemu/error-report.h" |
22 | #include "sysemu/bt.h" |
23 | #include "hw/bt.h" |
24 | |
25 | /* Slave implementations can ignore this */ |
26 | static void bt_dummy_lmp_mode_change(struct bt_link_s *link) |
27 | { |
28 | } |
29 | |
30 | /* Slaves should never receive these PDUs */ |
31 | static void bt_dummy_lmp_connection_complete(struct bt_link_s *link) |
32 | { |
33 | if (link->slave->reject_reason) |
34 | error_report("%s: stray LMP_not_accepted received, fixme" , __func__); |
35 | else |
36 | error_report("%s: stray LMP_accepted received, fixme" , __func__); |
37 | exit(-1); |
38 | } |
39 | |
40 | static void bt_dummy_lmp_disconnect_master(struct bt_link_s *link) |
41 | { |
42 | error_report("%s: stray LMP_detach received, fixme" , __func__); |
43 | exit(-1); |
44 | } |
45 | |
46 | static void bt_dummy_lmp_acl_resp(struct bt_link_s *link, |
47 | const uint8_t *data, int start, int len) |
48 | { |
49 | error_report("%s: stray ACL response PDU, fixme" , __func__); |
50 | exit(-1); |
51 | } |
52 | |
53 | /* Slaves that don't hold any additional per link state can use these */ |
54 | static void bt_dummy_lmp_connection_request(struct bt_link_s *req) |
55 | { |
56 | struct bt_link_s *link = g_malloc0(sizeof(struct bt_link_s)); |
57 | |
58 | link->slave = req->slave; |
59 | link->host = req->host; |
60 | |
61 | req->host->reject_reason = 0; |
62 | req->host->lmp_connection_complete(link); |
63 | } |
64 | |
65 | static void bt_dummy_lmp_disconnect_slave(struct bt_link_s *link) |
66 | { |
67 | g_free(link); |
68 | } |
69 | |
70 | static void bt_dummy_destroy(struct bt_device_s *device) |
71 | { |
72 | bt_device_done(device); |
73 | g_free(device); |
74 | } |
75 | |
76 | static int bt_dev_idx = 0; |
77 | |
78 | void bt_device_init(struct bt_device_s *dev, struct bt_scatternet_s *net) |
79 | { |
80 | memset(dev, 0, sizeof(*dev)); |
81 | dev->inquiry_scan = 1; |
82 | dev->page_scan = 1; |
83 | |
84 | dev->bd_addr.b[0] = bt_dev_idx & 0xff; |
85 | dev->bd_addr.b[1] = bt_dev_idx >> 8; |
86 | dev->bd_addr.b[2] = 0xd0; |
87 | dev->bd_addr.b[3] = 0xba; |
88 | dev->bd_addr.b[4] = 0xbe; |
89 | dev->bd_addr.b[5] = 0xba; |
90 | bt_dev_idx ++; |
91 | |
92 | /* Simple slave-only devices need to implement only .lmp_acl_data */ |
93 | dev->lmp_connection_complete = bt_dummy_lmp_connection_complete; |
94 | dev->lmp_disconnect_master = bt_dummy_lmp_disconnect_master; |
95 | dev->lmp_acl_resp = bt_dummy_lmp_acl_resp; |
96 | dev->lmp_mode_change = bt_dummy_lmp_mode_change; |
97 | dev->lmp_connection_request = bt_dummy_lmp_connection_request; |
98 | dev->lmp_disconnect_slave = bt_dummy_lmp_disconnect_slave; |
99 | |
100 | dev->handle_destroy = bt_dummy_destroy; |
101 | |
102 | dev->net = net; |
103 | dev->next = net->slave; |
104 | net->slave = dev; |
105 | } |
106 | |
107 | void bt_device_done(struct bt_device_s *dev) |
108 | { |
109 | struct bt_device_s **p = &dev->net->slave; |
110 | |
111 | while (*p && *p != dev) |
112 | p = &(*p)->next; |
113 | if (*p != dev) { |
114 | error_report("%s: bad bt device \"%s\"" , __func__, |
115 | dev->lmp_name ?: "(null)" ); |
116 | exit(-1); |
117 | } |
118 | |
119 | *p = dev->next; |
120 | } |
121 | |
122 | static struct bt_vlan_s { |
123 | struct bt_scatternet_s net; |
124 | int id; |
125 | struct bt_vlan_s *next; |
126 | } *first_bt_vlan; |
127 | |
128 | /* find or alloc a new bluetooth "VLAN" */ |
129 | struct bt_scatternet_s *qemu_find_bt_vlan(int id) |
130 | { |
131 | struct bt_vlan_s **pvlan, *vlan; |
132 | for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) { |
133 | if (vlan->id == id) |
134 | return &vlan->net; |
135 | } |
136 | vlan = g_malloc0(sizeof(struct bt_vlan_s)); |
137 | vlan->id = id; |
138 | pvlan = &first_bt_vlan; |
139 | while (*pvlan != NULL) |
140 | pvlan = &(*pvlan)->next; |
141 | *pvlan = vlan; |
142 | return &vlan->net; |
143 | } |
144 | |