3 * Bluetooth support for Intel devices
5 * Copyright (C) 2015 Intel Corporation
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.
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.
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
24 #include <linux/module.h>
26 #include <net/bluetooth/bluetooth.h>
27 #include <net/bluetooth/hci_core.h>
33 #define BDADDR_INTEL (&(bdaddr_t) {{0x00, 0x8b, 0x9e, 0x19, 0x03, 0x00}})
35 int btintel_check_bdaddr(struct hci_dev *hdev)
37 struct hci_rp_read_bd_addr *bda;
40 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
43 int err = PTR_ERR(skb);
44 BT_ERR("%s: Reading Intel device address failed (%d)",
49 if (skb->len != sizeof(*bda)) {
50 BT_ERR("%s: Intel device address length mismatch", hdev->name);
55 bda = (struct hci_rp_read_bd_addr *)skb->data;
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.
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);
72 EXPORT_SYMBOL_GPL(btintel_check_bdaddr);
74 int btintel_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
79 skb = __hci_cmd_sync(hdev, 0xfc31, 6, bdaddr, HCI_INIT_TIMEOUT);
82 BT_ERR("%s: Changing Intel device address failed (%d)",
90 EXPORT_SYMBOL_GPL(btintel_set_bdaddr);
92 void btintel_hw_error(struct hci_dev *hdev, u8 code)
97 BT_ERR("%s: Hardware error 0x%2.2x", hdev->name, code);
99 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
101 BT_ERR("%s: Reset after hardware error failed (%ld)",
102 hdev->name, PTR_ERR(skb));
107 skb = __hci_cmd_sync(hdev, 0xfc22, 1, &type, HCI_INIT_TIMEOUT);
109 BT_ERR("%s: Retrieving Intel exception info failed (%ld)",
110 hdev->name, PTR_ERR(skb));
114 if (skb->len != 13) {
115 BT_ERR("%s: Exception info size mismatch", hdev->name);
120 BT_ERR("%s: Exception info %s", hdev->name, (char *)(skb->data + 1));
124 EXPORT_SYMBOL_GPL(btintel_hw_error);
126 void btintel_version_info(struct hci_dev *hdev, struct intel_version *ver)
130 switch (ver->fw_variant) {
132 variant = "Bootloader";
135 variant = "Firmware";
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);
145 EXPORT_SYMBOL_GPL(btintel_version_info);
147 int btintel_secure_send(struct hci_dev *hdev, u8 fragment_type, u32 plen,
152 u8 cmd_param[253], fragment_len = (plen > 252) ? 252 : plen;
154 cmd_param[0] = fragment_type;
155 memcpy(cmd_param + 1, param, fragment_len);
157 skb = __hci_cmd_sync(hdev, 0xfc09, fragment_len + 1,
158 cmd_param, HCI_INIT_TIMEOUT);
164 plen -= fragment_len;
165 param += fragment_len;
170 EXPORT_SYMBOL_GPL(btintel_secure_send);
173 MODULE_DESCRIPTION("Bluetooth support for Intel devices ver " VERSION);
174 MODULE_VERSION(VERSION);
175 MODULE_LICENSE("GPL");
176 MODULE_FIRMWARE("intel/ibt-11-5.sfi");
177 MODULE_FIRMWARE("intel/ibt-11-5.ddc");