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48f0ed1b MH |
1 | /* |
2 | * | |
3 | * Bluetooth support for Intel devices | |
4 | * | |
5 | * Copyright (C) 2015 Intel Corporation | |
6 | * | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | * | |
22 | */ | |
23 | ||
24 | #include <linux/module.h> | |
25 | ||
26 | #include <net/bluetooth/bluetooth.h> | |
27 | #include <net/bluetooth/hci_core.h> | |
28 | ||
29 | #include "btintel.h" | |
30 | ||
31 | #define VERSION "0.1" | |
32 | ||
33 | #define BDADDR_INTEL (&(bdaddr_t) {{0x00, 0x8b, 0x9e, 0x19, 0x03, 0x00}}) | |
34 | ||
35 | int btintel_check_bdaddr(struct hci_dev *hdev) | |
36 | { | |
37 | struct hci_rp_read_bd_addr *bda; | |
38 | struct sk_buff *skb; | |
39 | ||
40 | skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL, | |
41 | HCI_INIT_TIMEOUT); | |
42 | if (IS_ERR(skb)) { | |
43 | int err = PTR_ERR(skb); | |
44 | BT_ERR("%s: Reading Intel device address failed (%d)", | |
45 | hdev->name, err); | |
46 | return err; | |
47 | } | |
48 | ||
49 | if (skb->len != sizeof(*bda)) { | |
50 | BT_ERR("%s: Intel device address length mismatch", hdev->name); | |
51 | kfree_skb(skb); | |
52 | return -EIO; | |
53 | } | |
54 | ||
55 | bda = (struct hci_rp_read_bd_addr *)skb->data; | |
48f0ed1b MH |
56 | |
57 | /* For some Intel based controllers, the default Bluetooth device | |
58 | * address 00:03:19:9E:8B:00 can be found. These controllers are | |
59 | * fully operational, but have the danger of duplicate addresses | |
60 | * and that in turn can cause problems with Bluetooth operation. | |
61 | */ | |
62 | if (!bacmp(&bda->bdaddr, BDADDR_INTEL)) { | |
63 | BT_ERR("%s: Found Intel default device address (%pMR)", | |
64 | hdev->name, &bda->bdaddr); | |
65 | set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); | |
66 | } | |
67 | ||
68 | kfree_skb(skb); | |
69 | ||
70 | return 0; | |
71 | } | |
72 | EXPORT_SYMBOL_GPL(btintel_check_bdaddr); | |
73 | ||
74 | int btintel_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr) | |
75 | { | |
76 | struct sk_buff *skb; | |
77 | int err; | |
78 | ||
79 | skb = __hci_cmd_sync(hdev, 0xfc31, 6, bdaddr, HCI_INIT_TIMEOUT); | |
80 | if (IS_ERR(skb)) { | |
81 | err = PTR_ERR(skb); | |
82 | BT_ERR("%s: Changing Intel device address failed (%d)", | |
83 | hdev->name, err); | |
84 | return err; | |
85 | } | |
86 | kfree_skb(skb); | |
87 | ||
88 | return 0; | |
89 | } | |
90 | EXPORT_SYMBOL_GPL(btintel_set_bdaddr); | |
91 | ||
973bb97e MH |
92 | void btintel_hw_error(struct hci_dev *hdev, u8 code) |
93 | { | |
94 | struct sk_buff *skb; | |
95 | u8 type = 0x00; | |
96 | ||
97 | BT_ERR("%s: Hardware error 0x%2.2x", hdev->name, code); | |
98 | ||
99 | skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); | |
100 | if (IS_ERR(skb)) { | |
101 | BT_ERR("%s: Reset after hardware error failed (%ld)", | |
102 | hdev->name, PTR_ERR(skb)); | |
103 | return; | |
104 | } | |
105 | kfree_skb(skb); | |
106 | ||
107 | skb = __hci_cmd_sync(hdev, 0xfc22, 1, &type, HCI_INIT_TIMEOUT); | |
108 | if (IS_ERR(skb)) { | |
109 | BT_ERR("%s: Retrieving Intel exception info failed (%ld)", | |
110 | hdev->name, PTR_ERR(skb)); | |
111 | return; | |
112 | } | |
113 | ||
114 | if (skb->len != 13) { | |
115 | BT_ERR("%s: Exception info size mismatch", hdev->name); | |
116 | kfree_skb(skb); | |
117 | return; | |
118 | } | |
119 | ||
120 | BT_ERR("%s: Exception info %s", hdev->name, (char *)(skb->data + 1)); | |
121 | ||
122 | kfree_skb(skb); | |
123 | } | |
124 | EXPORT_SYMBOL_GPL(btintel_hw_error); | |
125 | ||
7feb99e1 MH |
126 | void btintel_version_info(struct hci_dev *hdev, struct intel_version *ver) |
127 | { | |
128 | const char *variant; | |
129 | ||
130 | switch (ver->fw_variant) { | |
131 | case 0x06: | |
132 | variant = "Bootloader"; | |
133 | break; | |
134 | case 0x23: | |
135 | variant = "Firmware"; | |
136 | break; | |
137 | default: | |
138 | return; | |
139 | } | |
140 | ||
141 | BT_INFO("%s: %s revision %u.%u build %u week %u %u", hdev->name, | |
142 | variant, ver->fw_revision >> 4, ver->fw_revision & 0x0f, | |
143 | ver->fw_build_num, ver->fw_build_ww, 2000 + ver->fw_build_yy); | |
144 | } | |
145 | EXPORT_SYMBOL_GPL(btintel_version_info); | |
146 | ||
09df123d MH |
147 | int btintel_secure_send(struct hci_dev *hdev, u8 fragment_type, u32 plen, |
148 | const void *param) | |
149 | { | |
150 | while (plen > 0) { | |
151 | struct sk_buff *skb; | |
152 | u8 cmd_param[253], fragment_len = (plen > 252) ? 252 : plen; | |
153 | ||
154 | cmd_param[0] = fragment_type; | |
155 | memcpy(cmd_param + 1, param, fragment_len); | |
156 | ||
157 | skb = __hci_cmd_sync(hdev, 0xfc09, fragment_len + 1, | |
158 | cmd_param, HCI_INIT_TIMEOUT); | |
159 | if (IS_ERR(skb)) | |
160 | return PTR_ERR(skb); | |
161 | ||
162 | kfree_skb(skb); | |
163 | ||
164 | plen -= fragment_len; | |
165 | param += fragment_len; | |
166 | } | |
167 | ||
168 | return 0; | |
169 | } | |
170 | EXPORT_SYMBOL_GPL(btintel_secure_send); | |
171 | ||
48f0ed1b MH |
172 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
173 | MODULE_DESCRIPTION("Bluetooth support for Intel devices ver " VERSION); | |
174 | MODULE_VERSION(VERSION); | |
175 | MODULE_LICENSE("GPL"); | |
0ed97e82 MH |
176 | MODULE_FIRMWARE("intel/ibt-11-5.sfi"); |
177 | MODULE_FIRMWARE("intel/ibt-11-5.ddc"); |