11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds BlueZ - Bluetooth protocol stack for Linux 31da177e4SLinus Torvalds Copyright (C) 2000-2001 Qualcomm Incorporated 41da177e4SLinus Torvalds 51da177e4SLinus Torvalds Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> 61da177e4SLinus Torvalds 71da177e4SLinus Torvalds This program is free software; you can redistribute it and/or modify 81da177e4SLinus Torvalds it under the terms of the GNU General Public License version 2 as 91da177e4SLinus Torvalds published by the Free Software Foundation; 101da177e4SLinus Torvalds 111da177e4SLinus Torvalds THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 121da177e4SLinus Torvalds OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 131da177e4SLinus Torvalds FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. 141da177e4SLinus Torvalds IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY 151da177e4SLinus Torvalds CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 161da177e4SLinus Torvalds WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 171da177e4SLinus Torvalds ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 181da177e4SLinus Torvalds OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 191da177e4SLinus Torvalds 201da177e4SLinus Torvalds ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 211da177e4SLinus Torvalds COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 221da177e4SLinus Torvalds SOFTWARE IS DISCLAIMED. 231da177e4SLinus Torvalds */ 241da177e4SLinus Torvalds 251da177e4SLinus Torvalds #ifndef __HCI_CORE_H 261da177e4SLinus Torvalds #define __HCI_CORE_H 271da177e4SLinus Torvalds 281da177e4SLinus Torvalds #include <net/bluetooth/hci.h> 291da177e4SLinus Torvalds 301da177e4SLinus Torvalds /* HCI upper protocols */ 311da177e4SLinus Torvalds #define HCI_PROTO_L2CAP 0 321da177e4SLinus Torvalds #define HCI_PROTO_SCO 1 331da177e4SLinus Torvalds 341da177e4SLinus Torvalds /* HCI Core structures */ 351da177e4SLinus Torvalds struct inquiry_data { 361da177e4SLinus Torvalds bdaddr_t bdaddr; 371da177e4SLinus Torvalds __u8 pscan_rep_mode; 381da177e4SLinus Torvalds __u8 pscan_period_mode; 391da177e4SLinus Torvalds __u8 pscan_mode; 401da177e4SLinus Torvalds __u8 dev_class[3]; 411ebb9252SMarcel Holtmann __le16 clock_offset; 421da177e4SLinus Torvalds __s8 rssi; 4341a96212SMarcel Holtmann __u8 ssp_mode; 441da177e4SLinus Torvalds }; 451da177e4SLinus Torvalds 461da177e4SLinus Torvalds struct inquiry_entry { 471da177e4SLinus Torvalds struct inquiry_entry *next; 481da177e4SLinus Torvalds __u32 timestamp; 491da177e4SLinus Torvalds struct inquiry_data data; 501da177e4SLinus Torvalds }; 511da177e4SLinus Torvalds 521da177e4SLinus Torvalds struct inquiry_cache { 531da177e4SLinus Torvalds spinlock_t lock; 541da177e4SLinus Torvalds __u32 timestamp; 551da177e4SLinus Torvalds struct inquiry_entry *list; 561da177e4SLinus Torvalds }; 571da177e4SLinus Torvalds 581da177e4SLinus Torvalds struct hci_conn_hash { 591da177e4SLinus Torvalds struct list_head list; 601da177e4SLinus Torvalds spinlock_t lock; 611da177e4SLinus Torvalds unsigned int acl_num; 621da177e4SLinus Torvalds unsigned int sco_num; 631da177e4SLinus Torvalds }; 641da177e4SLinus Torvalds 651da177e4SLinus Torvalds struct hci_dev { 661da177e4SLinus Torvalds struct list_head list; 671da177e4SLinus Torvalds spinlock_t lock; 681da177e4SLinus Torvalds atomic_t refcnt; 691da177e4SLinus Torvalds 701da177e4SLinus Torvalds char name[8]; 711da177e4SLinus Torvalds unsigned long flags; 721da177e4SLinus Torvalds __u16 id; 731da177e4SLinus Torvalds __u8 type; 741da177e4SLinus Torvalds bdaddr_t bdaddr; 75a9de9248SMarcel Holtmann __u8 dev_name[248]; 76a9de9248SMarcel Holtmann __u8 dev_class[3]; 771da177e4SLinus Torvalds __u8 features[8]; 78a9de9248SMarcel Holtmann __u8 commands[64]; 79333140b5SMarcel Holtmann __u8 ssp_mode; 801143e5a6SMarcel Holtmann __u8 hci_ver; 811143e5a6SMarcel Holtmann __u16 hci_rev; 821143e5a6SMarcel Holtmann __u16 manufacturer; 831da177e4SLinus Torvalds __u16 voice_setting; 841da177e4SLinus Torvalds 851da177e4SLinus Torvalds __u16 pkt_type; 865b7f9909SMarcel Holtmann __u16 esco_type; 871da177e4SLinus Torvalds __u16 link_policy; 881da177e4SLinus Torvalds __u16 link_mode; 891da177e4SLinus Torvalds 9004837f64SMarcel Holtmann __u32 idle_timeout; 9104837f64SMarcel Holtmann __u16 sniff_min_interval; 9204837f64SMarcel Holtmann __u16 sniff_max_interval; 9304837f64SMarcel Holtmann 941da177e4SLinus Torvalds unsigned long quirks; 951da177e4SLinus Torvalds 961da177e4SLinus Torvalds atomic_t cmd_cnt; 971da177e4SLinus Torvalds unsigned int acl_cnt; 981da177e4SLinus Torvalds unsigned int sco_cnt; 991da177e4SLinus Torvalds 1001da177e4SLinus Torvalds unsigned int acl_mtu; 1011da177e4SLinus Torvalds unsigned int sco_mtu; 1021da177e4SLinus Torvalds unsigned int acl_pkts; 1031da177e4SLinus Torvalds unsigned int sco_pkts; 1041da177e4SLinus Torvalds 1051da177e4SLinus Torvalds unsigned long cmd_last_tx; 1061da177e4SLinus Torvalds unsigned long acl_last_tx; 1071da177e4SLinus Torvalds unsigned long sco_last_tx; 1081da177e4SLinus Torvalds 1091da177e4SLinus Torvalds struct tasklet_struct cmd_task; 1101da177e4SLinus Torvalds struct tasklet_struct rx_task; 1111da177e4SLinus Torvalds struct tasklet_struct tx_task; 1121da177e4SLinus Torvalds 1131da177e4SLinus Torvalds struct sk_buff_head rx_q; 1141da177e4SLinus Torvalds struct sk_buff_head raw_q; 1151da177e4SLinus Torvalds struct sk_buff_head cmd_q; 1161da177e4SLinus Torvalds 1171da177e4SLinus Torvalds struct sk_buff *sent_cmd; 118ef222013SMarcel Holtmann struct sk_buff *reassembly[3]; 1191da177e4SLinus Torvalds 1201da177e4SLinus Torvalds struct semaphore req_lock; 1211da177e4SLinus Torvalds wait_queue_head_t req_wait_q; 1221da177e4SLinus Torvalds __u32 req_status; 1231da177e4SLinus Torvalds __u32 req_result; 1241da177e4SLinus Torvalds 1251da177e4SLinus Torvalds struct inquiry_cache inq_cache; 1261da177e4SLinus Torvalds struct hci_conn_hash conn_hash; 1271da177e4SLinus Torvalds 1281da177e4SLinus Torvalds struct hci_dev_stats stat; 1291da177e4SLinus Torvalds 1301da177e4SLinus Torvalds struct sk_buff_head driver_init; 1311da177e4SLinus Torvalds 1321da177e4SLinus Torvalds void *driver_data; 1331da177e4SLinus Torvalds void *core_data; 1341da177e4SLinus Torvalds 1351da177e4SLinus Torvalds atomic_t promisc; 1361da177e4SLinus Torvalds 137a91f2e39SMarcel Holtmann struct device *parent; 138a91f2e39SMarcel Holtmann struct device dev; 1391da177e4SLinus Torvalds 1401da177e4SLinus Torvalds struct module *owner; 1411da177e4SLinus Torvalds 1421da177e4SLinus Torvalds int (*open)(struct hci_dev *hdev); 1431da177e4SLinus Torvalds int (*close)(struct hci_dev *hdev); 1441da177e4SLinus Torvalds int (*flush)(struct hci_dev *hdev); 1451da177e4SLinus Torvalds int (*send)(struct sk_buff *skb); 1461da177e4SLinus Torvalds void (*destruct)(struct hci_dev *hdev); 1471da177e4SLinus Torvalds void (*notify)(struct hci_dev *hdev, unsigned int evt); 1481da177e4SLinus Torvalds int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg); 1491da177e4SLinus Torvalds }; 1501da177e4SLinus Torvalds 1511da177e4SLinus Torvalds struct hci_conn { 1521da177e4SLinus Torvalds struct list_head list; 1531da177e4SLinus Torvalds 1541da177e4SLinus Torvalds atomic_t refcnt; 1551da177e4SLinus Torvalds spinlock_t lock; 1561da177e4SLinus Torvalds 1571da177e4SLinus Torvalds bdaddr_t dst; 1581da177e4SLinus Torvalds __u16 handle; 1591da177e4SLinus Torvalds __u16 state; 16004837f64SMarcel Holtmann __u8 mode; 1611da177e4SLinus Torvalds __u8 type; 1621da177e4SLinus Torvalds __u8 out; 1634c67bc74SMarcel Holtmann __u8 attempt; 1641da177e4SLinus Torvalds __u8 dev_class[3]; 16504837f64SMarcel Holtmann __u8 features[8]; 16641a96212SMarcel Holtmann __u8 ssp_mode; 16704837f64SMarcel Holtmann __u16 interval; 168a8746417SMarcel Holtmann __u16 pkt_type; 16904837f64SMarcel Holtmann __u16 link_policy; 1701da177e4SLinus Torvalds __u32 link_mode; 17140be492fSMarcel Holtmann __u8 auth_type; 1728c1b2355SMarcel Holtmann __u8 sec_level; 17304837f64SMarcel Holtmann __u8 power_save; 174052b30b0SMarcel Holtmann __u16 disc_timeout; 1751da177e4SLinus Torvalds unsigned long pend; 1761da177e4SLinus Torvalds 1771da177e4SLinus Torvalds unsigned int sent; 1781da177e4SLinus Torvalds 1791da177e4SLinus Torvalds struct sk_buff_head data_q; 1801da177e4SLinus Torvalds 18104837f64SMarcel Holtmann struct timer_list disc_timer; 18204837f64SMarcel Holtmann struct timer_list idle_timer; 1831da177e4SLinus Torvalds 184f3784d83SRoger Quadros struct work_struct work_add; 185f3784d83SRoger Quadros struct work_struct work_del; 186b219e3acSMarcel Holtmann 187b219e3acSMarcel Holtmann struct device dev; 188b219e3acSMarcel Holtmann 1891da177e4SLinus Torvalds struct hci_dev *hdev; 1901da177e4SLinus Torvalds void *l2cap_data; 1911da177e4SLinus Torvalds void *sco_data; 1921da177e4SLinus Torvalds void *priv; 1931da177e4SLinus Torvalds 1941da177e4SLinus Torvalds struct hci_conn *link; 1951da177e4SLinus Torvalds }; 1961da177e4SLinus Torvalds 1971da177e4SLinus Torvalds extern struct hci_proto *hci_proto[]; 1981da177e4SLinus Torvalds extern struct list_head hci_dev_list; 1991da177e4SLinus Torvalds extern struct list_head hci_cb_list; 2001da177e4SLinus Torvalds extern rwlock_t hci_dev_list_lock; 2011da177e4SLinus Torvalds extern rwlock_t hci_cb_list_lock; 2021da177e4SLinus Torvalds 2031da177e4SLinus Torvalds /* ----- Inquiry cache ----- */ 2041da177e4SLinus Torvalds #define INQUIRY_CACHE_AGE_MAX (HZ*30) // 30 seconds 2051da177e4SLinus Torvalds #define INQUIRY_ENTRY_AGE_MAX (HZ*60) // 60 seconds 2061da177e4SLinus Torvalds 2071da177e4SLinus Torvalds #define inquiry_cache_lock(c) spin_lock(&c->lock) 2081da177e4SLinus Torvalds #define inquiry_cache_unlock(c) spin_unlock(&c->lock) 2091da177e4SLinus Torvalds #define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock) 2101da177e4SLinus Torvalds #define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock) 2111da177e4SLinus Torvalds 2121da177e4SLinus Torvalds static inline void inquiry_cache_init(struct hci_dev *hdev) 2131da177e4SLinus Torvalds { 2141da177e4SLinus Torvalds struct inquiry_cache *c = &hdev->inq_cache; 2151da177e4SLinus Torvalds spin_lock_init(&c->lock); 2161da177e4SLinus Torvalds c->list = NULL; 2171da177e4SLinus Torvalds } 2181da177e4SLinus Torvalds 2191da177e4SLinus Torvalds static inline int inquiry_cache_empty(struct hci_dev *hdev) 2201da177e4SLinus Torvalds { 2211da177e4SLinus Torvalds struct inquiry_cache *c = &hdev->inq_cache; 2221da177e4SLinus Torvalds return (c->list == NULL); 2231da177e4SLinus Torvalds } 2241da177e4SLinus Torvalds 2251da177e4SLinus Torvalds static inline long inquiry_cache_age(struct hci_dev *hdev) 2261da177e4SLinus Torvalds { 2271da177e4SLinus Torvalds struct inquiry_cache *c = &hdev->inq_cache; 2281da177e4SLinus Torvalds return jiffies - c->timestamp; 2291da177e4SLinus Torvalds } 2301da177e4SLinus Torvalds 2311da177e4SLinus Torvalds static inline long inquiry_entry_age(struct inquiry_entry *e) 2321da177e4SLinus Torvalds { 2331da177e4SLinus Torvalds return jiffies - e->timestamp; 2341da177e4SLinus Torvalds } 2351da177e4SLinus Torvalds 2361da177e4SLinus Torvalds struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr); 2371da177e4SLinus Torvalds void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data); 2381da177e4SLinus Torvalds 2391da177e4SLinus Torvalds /* ----- HCI Connections ----- */ 2401da177e4SLinus Torvalds enum { 2411da177e4SLinus Torvalds HCI_CONN_AUTH_PEND, 2421da177e4SLinus Torvalds HCI_CONN_ENCRYPT_PEND, 24304837f64SMarcel Holtmann HCI_CONN_RSWITCH_PEND, 24404837f64SMarcel Holtmann HCI_CONN_MODE_CHANGE_PEND, 2451da177e4SLinus Torvalds }; 2461da177e4SLinus Torvalds 2471da177e4SLinus Torvalds static inline void hci_conn_hash_init(struct hci_dev *hdev) 2481da177e4SLinus Torvalds { 2491da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2501da177e4SLinus Torvalds INIT_LIST_HEAD(&h->list); 2511da177e4SLinus Torvalds spin_lock_init(&h->lock); 2521da177e4SLinus Torvalds h->acl_num = 0; 2531da177e4SLinus Torvalds h->sco_num = 0; 2541da177e4SLinus Torvalds } 2551da177e4SLinus Torvalds 2561da177e4SLinus Torvalds static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 2571da177e4SLinus Torvalds { 2581da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2591da177e4SLinus Torvalds list_add(&c->list, &h->list); 2601da177e4SLinus Torvalds if (c->type == ACL_LINK) 2611da177e4SLinus Torvalds h->acl_num++; 2621da177e4SLinus Torvalds else 2631da177e4SLinus Torvalds h->sco_num++; 2641da177e4SLinus Torvalds } 2651da177e4SLinus Torvalds 2661da177e4SLinus Torvalds static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 2671da177e4SLinus Torvalds { 2681da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2691da177e4SLinus Torvalds list_del(&c->list); 2701da177e4SLinus Torvalds if (c->type == ACL_LINK) 2711da177e4SLinus Torvalds h->acl_num--; 2721da177e4SLinus Torvalds else 2731da177e4SLinus Torvalds h->sco_num--; 2741da177e4SLinus Torvalds } 2751da177e4SLinus Torvalds 2761da177e4SLinus Torvalds static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 2771da177e4SLinus Torvalds __u16 handle) 2781da177e4SLinus Torvalds { 2791da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2801da177e4SLinus Torvalds struct list_head *p; 2811da177e4SLinus Torvalds struct hci_conn *c; 2821da177e4SLinus Torvalds 2831da177e4SLinus Torvalds list_for_each(p, &h->list) { 2841da177e4SLinus Torvalds c = list_entry(p, struct hci_conn, list); 2851da177e4SLinus Torvalds if (c->handle == handle) 2861da177e4SLinus Torvalds return c; 2871da177e4SLinus Torvalds } 2881da177e4SLinus Torvalds return NULL; 2891da177e4SLinus Torvalds } 2901da177e4SLinus Torvalds 2911da177e4SLinus Torvalds static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 2921da177e4SLinus Torvalds __u8 type, bdaddr_t *ba) 2931da177e4SLinus Torvalds { 2941da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2951da177e4SLinus Torvalds struct list_head *p; 2961da177e4SLinus Torvalds struct hci_conn *c; 2971da177e4SLinus Torvalds 2981da177e4SLinus Torvalds list_for_each(p, &h->list) { 2991da177e4SLinus Torvalds c = list_entry(p, struct hci_conn, list); 3001da177e4SLinus Torvalds if (c->type == type && !bacmp(&c->dst, ba)) 3011da177e4SLinus Torvalds return c; 3021da177e4SLinus Torvalds } 3031da177e4SLinus Torvalds return NULL; 3041da177e4SLinus Torvalds } 3051da177e4SLinus Torvalds 3064c67bc74SMarcel Holtmann static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, 3074c67bc74SMarcel Holtmann __u8 type, __u16 state) 3084c67bc74SMarcel Holtmann { 3094c67bc74SMarcel Holtmann struct hci_conn_hash *h = &hdev->conn_hash; 3104c67bc74SMarcel Holtmann struct list_head *p; 3114c67bc74SMarcel Holtmann struct hci_conn *c; 3124c67bc74SMarcel Holtmann 3134c67bc74SMarcel Holtmann list_for_each(p, &h->list) { 3144c67bc74SMarcel Holtmann c = list_entry(p, struct hci_conn, list); 3154c67bc74SMarcel Holtmann if (c->type == type && c->state == state) 3164c67bc74SMarcel Holtmann return c; 3174c67bc74SMarcel Holtmann } 3184c67bc74SMarcel Holtmann return NULL; 3194c67bc74SMarcel Holtmann } 3204c67bc74SMarcel Holtmann 3214c67bc74SMarcel Holtmann void hci_acl_connect(struct hci_conn *conn); 3221da177e4SLinus Torvalds void hci_acl_disconn(struct hci_conn *conn, __u8 reason); 3231da177e4SLinus Torvalds void hci_add_sco(struct hci_conn *conn, __u16 handle); 324b6a0dc82SMarcel Holtmann void hci_setup_sync(struct hci_conn *conn, __u16 handle); 3251da177e4SLinus Torvalds 3261da177e4SLinus Torvalds struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst); 3271da177e4SLinus Torvalds int hci_conn_del(struct hci_conn *conn); 3281da177e4SLinus Torvalds void hci_conn_hash_flush(struct hci_dev *hdev); 329a9de9248SMarcel Holtmann void hci_conn_check_pending(struct hci_dev *hdev); 3301da177e4SLinus Torvalds 3318c1b2355SMarcel Holtmann struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type); 332e7c29cb1SMarcel Holtmann int hci_conn_check_link_mode(struct hci_conn *conn); 3330684e5f9SMarcel Holtmann int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type); 3341da177e4SLinus Torvalds int hci_conn_change_link_key(struct hci_conn *conn); 3358c1b2355SMarcel Holtmann int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 3361da177e4SLinus Torvalds 33704837f64SMarcel Holtmann void hci_conn_enter_active_mode(struct hci_conn *conn); 33804837f64SMarcel Holtmann void hci_conn_enter_sniff_mode(struct hci_conn *conn); 3391da177e4SLinus Torvalds 3401da177e4SLinus Torvalds static inline void hci_conn_hold(struct hci_conn *conn) 3411da177e4SLinus Torvalds { 3421da177e4SLinus Torvalds atomic_inc(&conn->refcnt); 34304837f64SMarcel Holtmann del_timer(&conn->disc_timer); 3441da177e4SLinus Torvalds } 3451da177e4SLinus Torvalds 3461da177e4SLinus Torvalds static inline void hci_conn_put(struct hci_conn *conn) 3471da177e4SLinus Torvalds { 3481da177e4SLinus Torvalds if (atomic_dec_and_test(&conn->refcnt)) { 34904837f64SMarcel Holtmann unsigned long timeo; 3501da177e4SLinus Torvalds if (conn->type == ACL_LINK) { 3516ac59344SMarcel Holtmann del_timer(&conn->idle_timer); 3526ac59344SMarcel Holtmann if (conn->state == BT_CONNECTED) { 353052b30b0SMarcel Holtmann timeo = msecs_to_jiffies(conn->disc_timeout); 35404837f64SMarcel Holtmann if (!conn->out) 355052b30b0SMarcel Holtmann timeo *= 2; 3566ac59344SMarcel Holtmann } else 3576ac59344SMarcel Holtmann timeo = msecs_to_jiffies(10); 3581da177e4SLinus Torvalds } else 35904837f64SMarcel Holtmann timeo = msecs_to_jiffies(10); 36004837f64SMarcel Holtmann mod_timer(&conn->disc_timer, jiffies + timeo); 3611da177e4SLinus Torvalds } 3621da177e4SLinus Torvalds } 3631da177e4SLinus Torvalds 3641da177e4SLinus Torvalds /* ----- HCI tasks ----- */ 3651da177e4SLinus Torvalds static inline void hci_sched_cmd(struct hci_dev *hdev) 3661da177e4SLinus Torvalds { 3671da177e4SLinus Torvalds tasklet_schedule(&hdev->cmd_task); 3681da177e4SLinus Torvalds } 3691da177e4SLinus Torvalds 3701da177e4SLinus Torvalds static inline void hci_sched_rx(struct hci_dev *hdev) 3711da177e4SLinus Torvalds { 3721da177e4SLinus Torvalds tasklet_schedule(&hdev->rx_task); 3731da177e4SLinus Torvalds } 3741da177e4SLinus Torvalds 3751da177e4SLinus Torvalds static inline void hci_sched_tx(struct hci_dev *hdev) 3761da177e4SLinus Torvalds { 3771da177e4SLinus Torvalds tasklet_schedule(&hdev->tx_task); 3781da177e4SLinus Torvalds } 3791da177e4SLinus Torvalds 3801da177e4SLinus Torvalds /* ----- HCI Devices ----- */ 3811da177e4SLinus Torvalds static inline void __hci_dev_put(struct hci_dev *d) 3821da177e4SLinus Torvalds { 3831da177e4SLinus Torvalds if (atomic_dec_and_test(&d->refcnt)) 3841da177e4SLinus Torvalds d->destruct(d); 3851da177e4SLinus Torvalds } 3861da177e4SLinus Torvalds 3871da177e4SLinus Torvalds static inline void hci_dev_put(struct hci_dev *d) 3881da177e4SLinus Torvalds { 3891da177e4SLinus Torvalds __hci_dev_put(d); 3901da177e4SLinus Torvalds module_put(d->owner); 3911da177e4SLinus Torvalds } 3921da177e4SLinus Torvalds 3931da177e4SLinus Torvalds static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d) 3941da177e4SLinus Torvalds { 3951da177e4SLinus Torvalds atomic_inc(&d->refcnt); 3961da177e4SLinus Torvalds return d; 3971da177e4SLinus Torvalds } 3981da177e4SLinus Torvalds 3991da177e4SLinus Torvalds static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 4001da177e4SLinus Torvalds { 4011da177e4SLinus Torvalds if (try_module_get(d->owner)) 4021da177e4SLinus Torvalds return __hci_dev_hold(d); 4031da177e4SLinus Torvalds return NULL; 4041da177e4SLinus Torvalds } 4051da177e4SLinus Torvalds 4061da177e4SLinus Torvalds #define hci_dev_lock(d) spin_lock(&d->lock) 4071da177e4SLinus Torvalds #define hci_dev_unlock(d) spin_unlock(&d->lock) 4081da177e4SLinus Torvalds #define hci_dev_lock_bh(d) spin_lock_bh(&d->lock) 4091da177e4SLinus Torvalds #define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock) 4101da177e4SLinus Torvalds 4111da177e4SLinus Torvalds struct hci_dev *hci_dev_get(int index); 4121da177e4SLinus Torvalds struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst); 4131da177e4SLinus Torvalds 4141da177e4SLinus Torvalds struct hci_dev *hci_alloc_dev(void); 4151da177e4SLinus Torvalds void hci_free_dev(struct hci_dev *hdev); 4161da177e4SLinus Torvalds int hci_register_dev(struct hci_dev *hdev); 4171da177e4SLinus Torvalds int hci_unregister_dev(struct hci_dev *hdev); 4181da177e4SLinus Torvalds int hci_suspend_dev(struct hci_dev *hdev); 4191da177e4SLinus Torvalds int hci_resume_dev(struct hci_dev *hdev); 4201da177e4SLinus Torvalds int hci_dev_open(__u16 dev); 4211da177e4SLinus Torvalds int hci_dev_close(__u16 dev); 4221da177e4SLinus Torvalds int hci_dev_reset(__u16 dev); 4231da177e4SLinus Torvalds int hci_dev_reset_stat(__u16 dev); 4241da177e4SLinus Torvalds int hci_dev_cmd(unsigned int cmd, void __user *arg); 4251da177e4SLinus Torvalds int hci_get_dev_list(void __user *arg); 4261da177e4SLinus Torvalds int hci_get_dev_info(void __user *arg); 4271da177e4SLinus Torvalds int hci_get_conn_list(void __user *arg); 4281da177e4SLinus Torvalds int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 42940be492fSMarcel Holtmann int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 4301da177e4SLinus Torvalds int hci_inquiry(void __user *arg); 4311da177e4SLinus Torvalds 4321da177e4SLinus Torvalds void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 4331da177e4SLinus Torvalds 4341da177e4SLinus Torvalds /* Receive frame from HCI drivers */ 4351da177e4SLinus Torvalds static inline int hci_recv_frame(struct sk_buff *skb) 4361da177e4SLinus Torvalds { 4371da177e4SLinus Torvalds struct hci_dev *hdev = (struct hci_dev *) skb->dev; 4381da177e4SLinus Torvalds if (!hdev || (!test_bit(HCI_UP, &hdev->flags) 4391da177e4SLinus Torvalds && !test_bit(HCI_INIT, &hdev->flags))) { 4401da177e4SLinus Torvalds kfree_skb(skb); 4411da177e4SLinus Torvalds return -ENXIO; 4421da177e4SLinus Torvalds } 4431da177e4SLinus Torvalds 4441da177e4SLinus Torvalds /* Incomming skb */ 4451da177e4SLinus Torvalds bt_cb(skb)->incoming = 1; 4461da177e4SLinus Torvalds 4471da177e4SLinus Torvalds /* Time stamp */ 448a61bbcf2SPatrick McHardy __net_timestamp(skb); 4491da177e4SLinus Torvalds 4501da177e4SLinus Torvalds /* Queue frame for rx task */ 4511da177e4SLinus Torvalds skb_queue_tail(&hdev->rx_q, skb); 4521da177e4SLinus Torvalds hci_sched_rx(hdev); 4531da177e4SLinus Torvalds return 0; 4541da177e4SLinus Torvalds } 4551da177e4SLinus Torvalds 456ef222013SMarcel Holtmann int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count); 457ef222013SMarcel Holtmann 4581da177e4SLinus Torvalds int hci_register_sysfs(struct hci_dev *hdev); 4591da177e4SLinus Torvalds void hci_unregister_sysfs(struct hci_dev *hdev); 460a67e899cSMarcel Holtmann void hci_conn_init_sysfs(struct hci_conn *conn); 461b219e3acSMarcel Holtmann void hci_conn_add_sysfs(struct hci_conn *conn); 462b219e3acSMarcel Holtmann void hci_conn_del_sysfs(struct hci_conn *conn); 4631da177e4SLinus Torvalds 464a91f2e39SMarcel Holtmann #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev)) 4651da177e4SLinus Torvalds 4661da177e4SLinus Torvalds /* ----- LMP capabilities ----- */ 46704837f64SMarcel Holtmann #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH) 46804837f64SMarcel Holtmann #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT) 46904837f64SMarcel Holtmann #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF) 47004837f64SMarcel Holtmann #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR) 4715b7f9909SMarcel Holtmann #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO) 472769be974SMarcel Holtmann #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR) 4731da177e4SLinus Torvalds 4741da177e4SLinus Torvalds /* ----- HCI protocols ----- */ 4751da177e4SLinus Torvalds struct hci_proto { 4761da177e4SLinus Torvalds char *name; 4771da177e4SLinus Torvalds unsigned int id; 4781da177e4SLinus Torvalds unsigned long flags; 4791da177e4SLinus Torvalds 4801da177e4SLinus Torvalds void *priv; 4811da177e4SLinus Torvalds 4821da177e4SLinus Torvalds int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type); 4831da177e4SLinus Torvalds int (*connect_cfm) (struct hci_conn *conn, __u8 status); 4842950f21aSMarcel Holtmann int (*disconn_ind) (struct hci_conn *conn); 4852950f21aSMarcel Holtmann int (*disconn_cfm) (struct hci_conn *conn, __u8 reason); 4861da177e4SLinus Torvalds int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb, __u16 flags); 4871da177e4SLinus Torvalds int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb); 4888c1b2355SMarcel Holtmann int (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt); 4891da177e4SLinus Torvalds }; 4901da177e4SLinus Torvalds 4911da177e4SLinus Torvalds static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type) 4921da177e4SLinus Torvalds { 4931da177e4SLinus Torvalds register struct hci_proto *hp; 4941da177e4SLinus Torvalds int mask = 0; 4951da177e4SLinus Torvalds 4961da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 4971da177e4SLinus Torvalds if (hp && hp->connect_ind) 4981da177e4SLinus Torvalds mask |= hp->connect_ind(hdev, bdaddr, type); 4991da177e4SLinus Torvalds 5001da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 5011da177e4SLinus Torvalds if (hp && hp->connect_ind) 5021da177e4SLinus Torvalds mask |= hp->connect_ind(hdev, bdaddr, type); 5031da177e4SLinus Torvalds 5041da177e4SLinus Torvalds return mask; 5051da177e4SLinus Torvalds } 5061da177e4SLinus Torvalds 5071da177e4SLinus Torvalds static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) 5081da177e4SLinus Torvalds { 5091da177e4SLinus Torvalds register struct hci_proto *hp; 5101da177e4SLinus Torvalds 5111da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 5121da177e4SLinus Torvalds if (hp && hp->connect_cfm) 5131da177e4SLinus Torvalds hp->connect_cfm(conn, status); 5141da177e4SLinus Torvalds 5151da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 5161da177e4SLinus Torvalds if (hp && hp->connect_cfm) 5171da177e4SLinus Torvalds hp->connect_cfm(conn, status); 5181da177e4SLinus Torvalds } 5191da177e4SLinus Torvalds 5202950f21aSMarcel Holtmann static inline int hci_proto_disconn_ind(struct hci_conn *conn) 5212950f21aSMarcel Holtmann { 5222950f21aSMarcel Holtmann register struct hci_proto *hp; 5232950f21aSMarcel Holtmann int reason = 0x13; 5242950f21aSMarcel Holtmann 5252950f21aSMarcel Holtmann hp = hci_proto[HCI_PROTO_L2CAP]; 5262950f21aSMarcel Holtmann if (hp && hp->disconn_ind) 5272950f21aSMarcel Holtmann reason = hp->disconn_ind(conn); 5282950f21aSMarcel Holtmann 5292950f21aSMarcel Holtmann hp = hci_proto[HCI_PROTO_SCO]; 5302950f21aSMarcel Holtmann if (hp && hp->disconn_ind) 5312950f21aSMarcel Holtmann reason = hp->disconn_ind(conn); 5322950f21aSMarcel Holtmann 5332950f21aSMarcel Holtmann return reason; 5342950f21aSMarcel Holtmann } 5352950f21aSMarcel Holtmann 5362950f21aSMarcel Holtmann static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason) 5371da177e4SLinus Torvalds { 5381da177e4SLinus Torvalds register struct hci_proto *hp; 5391da177e4SLinus Torvalds 5401da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 5412950f21aSMarcel Holtmann if (hp && hp->disconn_cfm) 5422950f21aSMarcel Holtmann hp->disconn_cfm(conn, reason); 5431da177e4SLinus Torvalds 5441da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 5452950f21aSMarcel Holtmann if (hp && hp->disconn_cfm) 5462950f21aSMarcel Holtmann hp->disconn_cfm(conn, reason); 5471da177e4SLinus Torvalds } 5481da177e4SLinus Torvalds 5491da177e4SLinus Torvalds static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) 5501da177e4SLinus Torvalds { 5511da177e4SLinus Torvalds register struct hci_proto *hp; 5528c1b2355SMarcel Holtmann __u8 encrypt; 5538c1b2355SMarcel Holtmann 5548c1b2355SMarcel Holtmann if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) 5558c1b2355SMarcel Holtmann return; 5568c1b2355SMarcel Holtmann 5578c1b2355SMarcel Holtmann encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 5581da177e4SLinus Torvalds 5591da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 5608c1b2355SMarcel Holtmann if (hp && hp->security_cfm) 5618c1b2355SMarcel Holtmann hp->security_cfm(conn, status, encrypt); 5621da177e4SLinus Torvalds 5631da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 5648c1b2355SMarcel Holtmann if (hp && hp->security_cfm) 5658c1b2355SMarcel Holtmann hp->security_cfm(conn, status, encrypt); 5661da177e4SLinus Torvalds } 5671da177e4SLinus Torvalds 5689719f8afSMarcel Holtmann static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt) 5691da177e4SLinus Torvalds { 5701da177e4SLinus Torvalds register struct hci_proto *hp; 5711da177e4SLinus Torvalds 5721da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 5738c1b2355SMarcel Holtmann if (hp && hp->security_cfm) 5748c1b2355SMarcel Holtmann hp->security_cfm(conn, status, encrypt); 5751da177e4SLinus Torvalds 5761da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 5778c1b2355SMarcel Holtmann if (hp && hp->security_cfm) 5788c1b2355SMarcel Holtmann hp->security_cfm(conn, status, encrypt); 5791da177e4SLinus Torvalds } 5801da177e4SLinus Torvalds 5811da177e4SLinus Torvalds int hci_register_proto(struct hci_proto *hproto); 5821da177e4SLinus Torvalds int hci_unregister_proto(struct hci_proto *hproto); 5831da177e4SLinus Torvalds 5841da177e4SLinus Torvalds /* ----- HCI callbacks ----- */ 5851da177e4SLinus Torvalds struct hci_cb { 5861da177e4SLinus Torvalds struct list_head list; 5871da177e4SLinus Torvalds 5881da177e4SLinus Torvalds char *name; 5891da177e4SLinus Torvalds 5908c1b2355SMarcel Holtmann void (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt); 5911da177e4SLinus Torvalds void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 5921da177e4SLinus Torvalds void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 5931da177e4SLinus Torvalds }; 5941da177e4SLinus Torvalds 5951da177e4SLinus Torvalds static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 5961da177e4SLinus Torvalds { 5971da177e4SLinus Torvalds struct list_head *p; 5988c1b2355SMarcel Holtmann __u8 encrypt; 5991da177e4SLinus Torvalds 6001da177e4SLinus Torvalds hci_proto_auth_cfm(conn, status); 6011da177e4SLinus Torvalds 6028c1b2355SMarcel Holtmann if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) 6038c1b2355SMarcel Holtmann return; 6048c1b2355SMarcel Holtmann 6058c1b2355SMarcel Holtmann encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 6068c1b2355SMarcel Holtmann 6071da177e4SLinus Torvalds read_lock_bh(&hci_cb_list_lock); 6081da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 6091da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 6108c1b2355SMarcel Holtmann if (cb->security_cfm) 6118c1b2355SMarcel Holtmann cb->security_cfm(conn, status, encrypt); 6121da177e4SLinus Torvalds } 6131da177e4SLinus Torvalds read_unlock_bh(&hci_cb_list_lock); 6141da177e4SLinus Torvalds } 6151da177e4SLinus Torvalds 6161da177e4SLinus Torvalds static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt) 6171da177e4SLinus Torvalds { 6181da177e4SLinus Torvalds struct list_head *p; 6191da177e4SLinus Torvalds 620435fef20SMarcel Holtmann if (conn->sec_level == BT_SECURITY_SDP) 621435fef20SMarcel Holtmann conn->sec_level = BT_SECURITY_LOW; 622435fef20SMarcel Holtmann 6239719f8afSMarcel Holtmann hci_proto_encrypt_cfm(conn, status, encrypt); 6241da177e4SLinus Torvalds 6251da177e4SLinus Torvalds read_lock_bh(&hci_cb_list_lock); 6261da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 6271da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 6288c1b2355SMarcel Holtmann if (cb->security_cfm) 6298c1b2355SMarcel Holtmann cb->security_cfm(conn, status, encrypt); 6301da177e4SLinus Torvalds } 6311da177e4SLinus Torvalds read_unlock_bh(&hci_cb_list_lock); 6321da177e4SLinus Torvalds } 6331da177e4SLinus Torvalds 6341da177e4SLinus Torvalds static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 6351da177e4SLinus Torvalds { 6361da177e4SLinus Torvalds struct list_head *p; 6371da177e4SLinus Torvalds 6381da177e4SLinus Torvalds read_lock_bh(&hci_cb_list_lock); 6391da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 6401da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 6411da177e4SLinus Torvalds if (cb->key_change_cfm) 6421da177e4SLinus Torvalds cb->key_change_cfm(conn, status); 6431da177e4SLinus Torvalds } 6441da177e4SLinus Torvalds read_unlock_bh(&hci_cb_list_lock); 6451da177e4SLinus Torvalds } 6461da177e4SLinus Torvalds 6471da177e4SLinus Torvalds static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role) 6481da177e4SLinus Torvalds { 6491da177e4SLinus Torvalds struct list_head *p; 6501da177e4SLinus Torvalds 6511da177e4SLinus Torvalds read_lock_bh(&hci_cb_list_lock); 6521da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 6531da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 6541da177e4SLinus Torvalds if (cb->role_switch_cfm) 6551da177e4SLinus Torvalds cb->role_switch_cfm(conn, status, role); 6561da177e4SLinus Torvalds } 6571da177e4SLinus Torvalds read_unlock_bh(&hci_cb_list_lock); 6581da177e4SLinus Torvalds } 6591da177e4SLinus Torvalds 6601da177e4SLinus Torvalds int hci_register_cb(struct hci_cb *hcb); 6611da177e4SLinus Torvalds int hci_unregister_cb(struct hci_cb *hcb); 6621da177e4SLinus Torvalds 6631da177e4SLinus Torvalds int hci_register_notifier(struct notifier_block *nb); 6641da177e4SLinus Torvalds int hci_unregister_notifier(struct notifier_block *nb); 6651da177e4SLinus Torvalds 666a9de9248SMarcel Holtmann int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param); 6671da177e4SLinus Torvalds int hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags); 6681da177e4SLinus Torvalds int hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 6691da177e4SLinus Torvalds 670a9de9248SMarcel Holtmann void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 6711da177e4SLinus Torvalds 6721da177e4SLinus Torvalds void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data); 6731da177e4SLinus Torvalds 6741da177e4SLinus Torvalds /* ----- HCI Sockets ----- */ 6751da177e4SLinus Torvalds void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 6761da177e4SLinus Torvalds 6771da177e4SLinus Torvalds /* HCI info for socket */ 6781da177e4SLinus Torvalds #define hci_pi(sk) ((struct hci_pinfo *) sk) 6791da177e4SLinus Torvalds 6801da177e4SLinus Torvalds struct hci_pinfo { 6811da177e4SLinus Torvalds struct bt_sock bt; 6821da177e4SLinus Torvalds struct hci_dev *hdev; 6831da177e4SLinus Torvalds struct hci_filter filter; 6841da177e4SLinus Torvalds __u32 cmsg_mask; 6851da177e4SLinus Torvalds }; 6861da177e4SLinus Torvalds 6871da177e4SLinus Torvalds /* HCI security filter */ 6881da177e4SLinus Torvalds #define HCI_SFLT_MAX_OGF 5 6891da177e4SLinus Torvalds 6901da177e4SLinus Torvalds struct hci_sec_filter { 6911da177e4SLinus Torvalds __u32 type_mask; 6921da177e4SLinus Torvalds __u32 event_mask[2]; 6931da177e4SLinus Torvalds __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; 6941da177e4SLinus Torvalds }; 6951da177e4SLinus Torvalds 6961da177e4SLinus Torvalds /* ----- HCI requests ----- */ 6971da177e4SLinus Torvalds #define HCI_REQ_DONE 0 6981da177e4SLinus Torvalds #define HCI_REQ_PEND 1 6991da177e4SLinus Torvalds #define HCI_REQ_CANCELED 2 7001da177e4SLinus Torvalds 7011da177e4SLinus Torvalds #define hci_req_lock(d) down(&d->req_lock) 7021da177e4SLinus Torvalds #define hci_req_unlock(d) up(&d->req_lock) 7031da177e4SLinus Torvalds 7041da177e4SLinus Torvalds void hci_req_complete(struct hci_dev *hdev, int result); 7051da177e4SLinus Torvalds 7061da177e4SLinus Torvalds #endif /* __HCI_CORE_H */ 707