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; 431da177e4SLinus Torvalds }; 441da177e4SLinus Torvalds 451da177e4SLinus Torvalds struct inquiry_entry { 461da177e4SLinus Torvalds struct inquiry_entry *next; 471da177e4SLinus Torvalds __u32 timestamp; 481da177e4SLinus Torvalds struct inquiry_data data; 491da177e4SLinus Torvalds }; 501da177e4SLinus Torvalds 511da177e4SLinus Torvalds struct inquiry_cache { 521da177e4SLinus Torvalds spinlock_t lock; 531da177e4SLinus Torvalds __u32 timestamp; 541da177e4SLinus Torvalds struct inquiry_entry *list; 551da177e4SLinus Torvalds }; 561da177e4SLinus Torvalds 571da177e4SLinus Torvalds struct hci_conn_hash { 581da177e4SLinus Torvalds struct list_head list; 591da177e4SLinus Torvalds spinlock_t lock; 601da177e4SLinus Torvalds unsigned int acl_num; 611da177e4SLinus Torvalds unsigned int sco_num; 621da177e4SLinus Torvalds }; 631da177e4SLinus Torvalds 641da177e4SLinus Torvalds struct hci_dev { 651da177e4SLinus Torvalds struct list_head list; 661da177e4SLinus Torvalds spinlock_t lock; 671da177e4SLinus Torvalds atomic_t refcnt; 681da177e4SLinus Torvalds 691da177e4SLinus Torvalds char name[8]; 701da177e4SLinus Torvalds unsigned long flags; 711da177e4SLinus Torvalds __u16 id; 721da177e4SLinus Torvalds __u8 type; 731da177e4SLinus Torvalds bdaddr_t bdaddr; 741da177e4SLinus Torvalds __u8 features[8]; 751143e5a6SMarcel Holtmann __u8 hci_ver; 761143e5a6SMarcel Holtmann __u16 hci_rev; 771143e5a6SMarcel Holtmann __u16 manufacturer; 781da177e4SLinus Torvalds __u16 voice_setting; 791da177e4SLinus Torvalds 801da177e4SLinus Torvalds __u16 pkt_type; 811da177e4SLinus Torvalds __u16 link_policy; 821da177e4SLinus Torvalds __u16 link_mode; 831da177e4SLinus Torvalds 8404837f64SMarcel Holtmann __u32 idle_timeout; 8504837f64SMarcel Holtmann __u16 sniff_min_interval; 8604837f64SMarcel Holtmann __u16 sniff_max_interval; 8704837f64SMarcel Holtmann 881da177e4SLinus Torvalds unsigned long quirks; 891da177e4SLinus Torvalds 901da177e4SLinus Torvalds atomic_t cmd_cnt; 911da177e4SLinus Torvalds unsigned int acl_cnt; 921da177e4SLinus Torvalds unsigned int sco_cnt; 931da177e4SLinus Torvalds 941da177e4SLinus Torvalds unsigned int acl_mtu; 951da177e4SLinus Torvalds unsigned int sco_mtu; 961da177e4SLinus Torvalds unsigned int acl_pkts; 971da177e4SLinus Torvalds unsigned int sco_pkts; 981da177e4SLinus Torvalds 991da177e4SLinus Torvalds unsigned long cmd_last_tx; 1001da177e4SLinus Torvalds unsigned long acl_last_tx; 1011da177e4SLinus Torvalds unsigned long sco_last_tx; 1021da177e4SLinus Torvalds 1031da177e4SLinus Torvalds struct tasklet_struct cmd_task; 1041da177e4SLinus Torvalds struct tasklet_struct rx_task; 1051da177e4SLinus Torvalds struct tasklet_struct tx_task; 1061da177e4SLinus Torvalds 1071da177e4SLinus Torvalds struct sk_buff_head rx_q; 1081da177e4SLinus Torvalds struct sk_buff_head raw_q; 1091da177e4SLinus Torvalds struct sk_buff_head cmd_q; 1101da177e4SLinus Torvalds 1111da177e4SLinus Torvalds struct sk_buff *sent_cmd; 1121da177e4SLinus Torvalds 1131da177e4SLinus Torvalds struct semaphore req_lock; 1141da177e4SLinus Torvalds wait_queue_head_t req_wait_q; 1151da177e4SLinus Torvalds __u32 req_status; 1161da177e4SLinus Torvalds __u32 req_result; 1171da177e4SLinus Torvalds 1181da177e4SLinus Torvalds struct inquiry_cache inq_cache; 1191da177e4SLinus Torvalds struct hci_conn_hash conn_hash; 1201da177e4SLinus Torvalds 1211da177e4SLinus Torvalds struct hci_dev_stats stat; 1221da177e4SLinus Torvalds 1231da177e4SLinus Torvalds struct sk_buff_head driver_init; 1241da177e4SLinus Torvalds 1251da177e4SLinus Torvalds void *driver_data; 1261da177e4SLinus Torvalds void *core_data; 1271da177e4SLinus Torvalds 1281da177e4SLinus Torvalds atomic_t promisc; 1291da177e4SLinus Torvalds 130a91f2e39SMarcel Holtmann struct device *parent; 131a91f2e39SMarcel Holtmann struct device dev; 1321da177e4SLinus Torvalds 1331da177e4SLinus Torvalds struct module *owner; 1341da177e4SLinus Torvalds 1351da177e4SLinus Torvalds int (*open)(struct hci_dev *hdev); 1361da177e4SLinus Torvalds int (*close)(struct hci_dev *hdev); 1371da177e4SLinus Torvalds int (*flush)(struct hci_dev *hdev); 1381da177e4SLinus Torvalds int (*send)(struct sk_buff *skb); 1391da177e4SLinus Torvalds void (*destruct)(struct hci_dev *hdev); 1401da177e4SLinus Torvalds void (*notify)(struct hci_dev *hdev, unsigned int evt); 1411da177e4SLinus Torvalds int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg); 1421da177e4SLinus Torvalds }; 1431da177e4SLinus Torvalds 1441da177e4SLinus Torvalds struct hci_conn { 1451da177e4SLinus Torvalds struct list_head list; 1461da177e4SLinus Torvalds 1471da177e4SLinus Torvalds atomic_t refcnt; 1481da177e4SLinus Torvalds spinlock_t lock; 1491da177e4SLinus Torvalds 1501da177e4SLinus Torvalds bdaddr_t dst; 1511da177e4SLinus Torvalds __u16 handle; 1521da177e4SLinus Torvalds __u16 state; 15304837f64SMarcel Holtmann __u8 mode; 1541da177e4SLinus Torvalds __u8 type; 1551da177e4SLinus Torvalds __u8 out; 1561da177e4SLinus Torvalds __u8 dev_class[3]; 15704837f64SMarcel Holtmann __u8 features[8]; 15804837f64SMarcel Holtmann __u16 interval; 15904837f64SMarcel Holtmann __u16 link_policy; 1601da177e4SLinus Torvalds __u32 link_mode; 16104837f64SMarcel Holtmann __u8 power_save; 1621da177e4SLinus Torvalds unsigned long pend; 1631da177e4SLinus Torvalds 1641da177e4SLinus Torvalds unsigned int sent; 1651da177e4SLinus Torvalds 1661da177e4SLinus Torvalds struct sk_buff_head data_q; 1671da177e4SLinus Torvalds 16804837f64SMarcel Holtmann struct timer_list disc_timer; 16904837f64SMarcel Holtmann struct timer_list idle_timer; 1701da177e4SLinus Torvalds 171b219e3acSMarcel Holtmann struct work_struct work; 172b219e3acSMarcel Holtmann 173b219e3acSMarcel Holtmann struct device dev; 174b219e3acSMarcel Holtmann 1751da177e4SLinus Torvalds struct hci_dev *hdev; 1761da177e4SLinus Torvalds void *l2cap_data; 1771da177e4SLinus Torvalds void *sco_data; 1781da177e4SLinus Torvalds void *priv; 1791da177e4SLinus Torvalds 1801da177e4SLinus Torvalds struct hci_conn *link; 1811da177e4SLinus Torvalds }; 1821da177e4SLinus Torvalds 1831da177e4SLinus Torvalds extern struct hci_proto *hci_proto[]; 1841da177e4SLinus Torvalds extern struct list_head hci_dev_list; 1851da177e4SLinus Torvalds extern struct list_head hci_cb_list; 1861da177e4SLinus Torvalds extern rwlock_t hci_dev_list_lock; 1871da177e4SLinus Torvalds extern rwlock_t hci_cb_list_lock; 1881da177e4SLinus Torvalds 1891da177e4SLinus Torvalds /* ----- Inquiry cache ----- */ 1901da177e4SLinus Torvalds #define INQUIRY_CACHE_AGE_MAX (HZ*30) // 30 seconds 1911da177e4SLinus Torvalds #define INQUIRY_ENTRY_AGE_MAX (HZ*60) // 60 seconds 1921da177e4SLinus Torvalds 1931da177e4SLinus Torvalds #define inquiry_cache_lock(c) spin_lock(&c->lock) 1941da177e4SLinus Torvalds #define inquiry_cache_unlock(c) spin_unlock(&c->lock) 1951da177e4SLinus Torvalds #define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock) 1961da177e4SLinus Torvalds #define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock) 1971da177e4SLinus Torvalds 1981da177e4SLinus Torvalds static inline void inquiry_cache_init(struct hci_dev *hdev) 1991da177e4SLinus Torvalds { 2001da177e4SLinus Torvalds struct inquiry_cache *c = &hdev->inq_cache; 2011da177e4SLinus Torvalds spin_lock_init(&c->lock); 2021da177e4SLinus Torvalds c->list = NULL; 2031da177e4SLinus Torvalds } 2041da177e4SLinus Torvalds 2051da177e4SLinus Torvalds static inline int inquiry_cache_empty(struct hci_dev *hdev) 2061da177e4SLinus Torvalds { 2071da177e4SLinus Torvalds struct inquiry_cache *c = &hdev->inq_cache; 2081da177e4SLinus Torvalds return (c->list == NULL); 2091da177e4SLinus Torvalds } 2101da177e4SLinus Torvalds 2111da177e4SLinus Torvalds static inline long inquiry_cache_age(struct hci_dev *hdev) 2121da177e4SLinus Torvalds { 2131da177e4SLinus Torvalds struct inquiry_cache *c = &hdev->inq_cache; 2141da177e4SLinus Torvalds return jiffies - c->timestamp; 2151da177e4SLinus Torvalds } 2161da177e4SLinus Torvalds 2171da177e4SLinus Torvalds static inline long inquiry_entry_age(struct inquiry_entry *e) 2181da177e4SLinus Torvalds { 2191da177e4SLinus Torvalds return jiffies - e->timestamp; 2201da177e4SLinus Torvalds } 2211da177e4SLinus Torvalds 2221da177e4SLinus Torvalds struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr); 2231da177e4SLinus Torvalds void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data); 2241da177e4SLinus Torvalds 2251da177e4SLinus Torvalds /* ----- HCI Connections ----- */ 2261da177e4SLinus Torvalds enum { 2271da177e4SLinus Torvalds HCI_CONN_AUTH_PEND, 2281da177e4SLinus Torvalds HCI_CONN_ENCRYPT_PEND, 22904837f64SMarcel Holtmann HCI_CONN_RSWITCH_PEND, 23004837f64SMarcel Holtmann HCI_CONN_MODE_CHANGE_PEND, 2311da177e4SLinus Torvalds }; 2321da177e4SLinus Torvalds 2331da177e4SLinus Torvalds static inline void hci_conn_hash_init(struct hci_dev *hdev) 2341da177e4SLinus Torvalds { 2351da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2361da177e4SLinus Torvalds INIT_LIST_HEAD(&h->list); 2371da177e4SLinus Torvalds spin_lock_init(&h->lock); 2381da177e4SLinus Torvalds h->acl_num = 0; 2391da177e4SLinus Torvalds h->sco_num = 0; 2401da177e4SLinus Torvalds } 2411da177e4SLinus Torvalds 2421da177e4SLinus Torvalds static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 2431da177e4SLinus Torvalds { 2441da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2451da177e4SLinus Torvalds list_add(&c->list, &h->list); 2461da177e4SLinus Torvalds if (c->type == ACL_LINK) 2471da177e4SLinus Torvalds h->acl_num++; 2481da177e4SLinus Torvalds else 2491da177e4SLinus Torvalds h->sco_num++; 2501da177e4SLinus Torvalds } 2511da177e4SLinus Torvalds 2521da177e4SLinus Torvalds static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 2531da177e4SLinus Torvalds { 2541da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2551da177e4SLinus Torvalds list_del(&c->list); 2561da177e4SLinus Torvalds if (c->type == ACL_LINK) 2571da177e4SLinus Torvalds h->acl_num--; 2581da177e4SLinus Torvalds else 2591da177e4SLinus Torvalds h->sco_num--; 2601da177e4SLinus Torvalds } 2611da177e4SLinus Torvalds 2621da177e4SLinus Torvalds static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 2631da177e4SLinus Torvalds __u16 handle) 2641da177e4SLinus Torvalds { 2651da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2661da177e4SLinus Torvalds struct list_head *p; 2671da177e4SLinus Torvalds struct hci_conn *c; 2681da177e4SLinus Torvalds 2691da177e4SLinus Torvalds list_for_each(p, &h->list) { 2701da177e4SLinus Torvalds c = list_entry(p, struct hci_conn, list); 2711da177e4SLinus Torvalds if (c->handle == handle) 2721da177e4SLinus Torvalds return c; 2731da177e4SLinus Torvalds } 2741da177e4SLinus Torvalds return NULL; 2751da177e4SLinus Torvalds } 2761da177e4SLinus Torvalds 2771da177e4SLinus Torvalds static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 2781da177e4SLinus Torvalds __u8 type, bdaddr_t *ba) 2791da177e4SLinus Torvalds { 2801da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2811da177e4SLinus Torvalds struct list_head *p; 2821da177e4SLinus Torvalds struct hci_conn *c; 2831da177e4SLinus Torvalds 2841da177e4SLinus Torvalds list_for_each(p, &h->list) { 2851da177e4SLinus Torvalds c = list_entry(p, struct hci_conn, list); 2861da177e4SLinus Torvalds if (c->type == type && !bacmp(&c->dst, ba)) 2871da177e4SLinus Torvalds return c; 2881da177e4SLinus Torvalds } 2891da177e4SLinus Torvalds return NULL; 2901da177e4SLinus Torvalds } 2911da177e4SLinus Torvalds 2921da177e4SLinus Torvalds void hci_acl_disconn(struct hci_conn *conn, __u8 reason); 2931da177e4SLinus Torvalds void hci_add_sco(struct hci_conn *conn, __u16 handle); 2941da177e4SLinus Torvalds 2951da177e4SLinus Torvalds struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst); 2961da177e4SLinus Torvalds int hci_conn_del(struct hci_conn *conn); 2971da177e4SLinus Torvalds void hci_conn_hash_flush(struct hci_dev *hdev); 2981da177e4SLinus Torvalds 2991da177e4SLinus Torvalds struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *src); 3001da177e4SLinus Torvalds int hci_conn_auth(struct hci_conn *conn); 3011da177e4SLinus Torvalds int hci_conn_encrypt(struct hci_conn *conn); 3021da177e4SLinus Torvalds int hci_conn_change_link_key(struct hci_conn *conn); 3031da177e4SLinus Torvalds int hci_conn_switch_role(struct hci_conn *conn, uint8_t role); 3041da177e4SLinus Torvalds 30504837f64SMarcel Holtmann void hci_conn_enter_active_mode(struct hci_conn *conn); 30604837f64SMarcel Holtmann void hci_conn_enter_sniff_mode(struct hci_conn *conn); 3071da177e4SLinus Torvalds 3081da177e4SLinus Torvalds static inline void hci_conn_hold(struct hci_conn *conn) 3091da177e4SLinus Torvalds { 3101da177e4SLinus Torvalds atomic_inc(&conn->refcnt); 31104837f64SMarcel Holtmann del_timer(&conn->disc_timer); 3121da177e4SLinus Torvalds } 3131da177e4SLinus Torvalds 3141da177e4SLinus Torvalds static inline void hci_conn_put(struct hci_conn *conn) 3151da177e4SLinus Torvalds { 3161da177e4SLinus Torvalds if (atomic_dec_and_test(&conn->refcnt)) { 31704837f64SMarcel Holtmann unsigned long timeo; 3181da177e4SLinus Torvalds if (conn->type == ACL_LINK) { 31904837f64SMarcel Holtmann timeo = msecs_to_jiffies(HCI_DISCONN_TIMEOUT); 32004837f64SMarcel Holtmann if (!conn->out) 32104837f64SMarcel Holtmann timeo *= 2; 32204837f64SMarcel Holtmann del_timer(&conn->idle_timer); 3231da177e4SLinus Torvalds } else 32404837f64SMarcel Holtmann timeo = msecs_to_jiffies(10); 32504837f64SMarcel Holtmann mod_timer(&conn->disc_timer, jiffies + timeo); 3261da177e4SLinus Torvalds } 3271da177e4SLinus Torvalds } 3281da177e4SLinus Torvalds 3291da177e4SLinus Torvalds /* ----- HCI tasks ----- */ 3301da177e4SLinus Torvalds static inline void hci_sched_cmd(struct hci_dev *hdev) 3311da177e4SLinus Torvalds { 3321da177e4SLinus Torvalds tasklet_schedule(&hdev->cmd_task); 3331da177e4SLinus Torvalds } 3341da177e4SLinus Torvalds 3351da177e4SLinus Torvalds static inline void hci_sched_rx(struct hci_dev *hdev) 3361da177e4SLinus Torvalds { 3371da177e4SLinus Torvalds tasklet_schedule(&hdev->rx_task); 3381da177e4SLinus Torvalds } 3391da177e4SLinus Torvalds 3401da177e4SLinus Torvalds static inline void hci_sched_tx(struct hci_dev *hdev) 3411da177e4SLinus Torvalds { 3421da177e4SLinus Torvalds tasklet_schedule(&hdev->tx_task); 3431da177e4SLinus Torvalds } 3441da177e4SLinus Torvalds 3451da177e4SLinus Torvalds /* ----- HCI Devices ----- */ 3461da177e4SLinus Torvalds static inline void __hci_dev_put(struct hci_dev *d) 3471da177e4SLinus Torvalds { 3481da177e4SLinus Torvalds if (atomic_dec_and_test(&d->refcnt)) 3491da177e4SLinus Torvalds d->destruct(d); 3501da177e4SLinus Torvalds } 3511da177e4SLinus Torvalds 3521da177e4SLinus Torvalds static inline void hci_dev_put(struct hci_dev *d) 3531da177e4SLinus Torvalds { 3541da177e4SLinus Torvalds __hci_dev_put(d); 3551da177e4SLinus Torvalds module_put(d->owner); 3561da177e4SLinus Torvalds } 3571da177e4SLinus Torvalds 3581da177e4SLinus Torvalds static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d) 3591da177e4SLinus Torvalds { 3601da177e4SLinus Torvalds atomic_inc(&d->refcnt); 3611da177e4SLinus Torvalds return d; 3621da177e4SLinus Torvalds } 3631da177e4SLinus Torvalds 3641da177e4SLinus Torvalds static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 3651da177e4SLinus Torvalds { 3661da177e4SLinus Torvalds if (try_module_get(d->owner)) 3671da177e4SLinus Torvalds return __hci_dev_hold(d); 3681da177e4SLinus Torvalds return NULL; 3691da177e4SLinus Torvalds } 3701da177e4SLinus Torvalds 3711da177e4SLinus Torvalds #define hci_dev_lock(d) spin_lock(&d->lock) 3721da177e4SLinus Torvalds #define hci_dev_unlock(d) spin_unlock(&d->lock) 3731da177e4SLinus Torvalds #define hci_dev_lock_bh(d) spin_lock_bh(&d->lock) 3741da177e4SLinus Torvalds #define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock) 3751da177e4SLinus Torvalds 3761da177e4SLinus Torvalds struct hci_dev *hci_dev_get(int index); 3771da177e4SLinus Torvalds struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst); 3781da177e4SLinus Torvalds 3791da177e4SLinus Torvalds struct hci_dev *hci_alloc_dev(void); 3801da177e4SLinus Torvalds void hci_free_dev(struct hci_dev *hdev); 3811da177e4SLinus Torvalds int hci_register_dev(struct hci_dev *hdev); 3821da177e4SLinus Torvalds int hci_unregister_dev(struct hci_dev *hdev); 3831da177e4SLinus Torvalds int hci_suspend_dev(struct hci_dev *hdev); 3841da177e4SLinus Torvalds int hci_resume_dev(struct hci_dev *hdev); 3851da177e4SLinus Torvalds int hci_dev_open(__u16 dev); 3861da177e4SLinus Torvalds int hci_dev_close(__u16 dev); 3871da177e4SLinus Torvalds int hci_dev_reset(__u16 dev); 3881da177e4SLinus Torvalds int hci_dev_reset_stat(__u16 dev); 3891da177e4SLinus Torvalds int hci_dev_cmd(unsigned int cmd, void __user *arg); 3901da177e4SLinus Torvalds int hci_get_dev_list(void __user *arg); 3911da177e4SLinus Torvalds int hci_get_dev_info(void __user *arg); 3921da177e4SLinus Torvalds int hci_get_conn_list(void __user *arg); 3931da177e4SLinus Torvalds int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 3941da177e4SLinus Torvalds int hci_inquiry(void __user *arg); 3951da177e4SLinus Torvalds 3961da177e4SLinus Torvalds void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 3971da177e4SLinus Torvalds 3981da177e4SLinus Torvalds /* Receive frame from HCI drivers */ 3991da177e4SLinus Torvalds static inline int hci_recv_frame(struct sk_buff *skb) 4001da177e4SLinus Torvalds { 4011da177e4SLinus Torvalds struct hci_dev *hdev = (struct hci_dev *) skb->dev; 4021da177e4SLinus Torvalds if (!hdev || (!test_bit(HCI_UP, &hdev->flags) 4031da177e4SLinus Torvalds && !test_bit(HCI_INIT, &hdev->flags))) { 4041da177e4SLinus Torvalds kfree_skb(skb); 4051da177e4SLinus Torvalds return -ENXIO; 4061da177e4SLinus Torvalds } 4071da177e4SLinus Torvalds 4081da177e4SLinus Torvalds /* Incomming skb */ 4091da177e4SLinus Torvalds bt_cb(skb)->incoming = 1; 4101da177e4SLinus Torvalds 4111da177e4SLinus Torvalds /* Time stamp */ 412a61bbcf2SPatrick McHardy __net_timestamp(skb); 4131da177e4SLinus Torvalds 4141da177e4SLinus Torvalds /* Queue frame for rx task */ 4151da177e4SLinus Torvalds skb_queue_tail(&hdev->rx_q, skb); 4161da177e4SLinus Torvalds hci_sched_rx(hdev); 4171da177e4SLinus Torvalds return 0; 4181da177e4SLinus Torvalds } 4191da177e4SLinus Torvalds 4201da177e4SLinus Torvalds int hci_register_sysfs(struct hci_dev *hdev); 4211da177e4SLinus Torvalds void hci_unregister_sysfs(struct hci_dev *hdev); 422b219e3acSMarcel Holtmann void hci_conn_add_sysfs(struct hci_conn *conn); 423b219e3acSMarcel Holtmann void hci_conn_del_sysfs(struct hci_conn *conn); 4241da177e4SLinus Torvalds 425a91f2e39SMarcel Holtmann #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev)) 4261da177e4SLinus Torvalds 4271da177e4SLinus Torvalds /* ----- LMP capabilities ----- */ 42804837f64SMarcel Holtmann #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH) 42904837f64SMarcel Holtmann #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT) 43004837f64SMarcel Holtmann #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF) 43104837f64SMarcel Holtmann #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR) 4321da177e4SLinus Torvalds 4331da177e4SLinus Torvalds /* ----- HCI protocols ----- */ 4341da177e4SLinus Torvalds struct hci_proto { 4351da177e4SLinus Torvalds char *name; 4361da177e4SLinus Torvalds unsigned int id; 4371da177e4SLinus Torvalds unsigned long flags; 4381da177e4SLinus Torvalds 4391da177e4SLinus Torvalds void *priv; 4401da177e4SLinus Torvalds 4411da177e4SLinus Torvalds int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type); 4421da177e4SLinus Torvalds int (*connect_cfm) (struct hci_conn *conn, __u8 status); 4431da177e4SLinus Torvalds int (*disconn_ind) (struct hci_conn *conn, __u8 reason); 4441da177e4SLinus Torvalds int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb, __u16 flags); 4451da177e4SLinus Torvalds int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb); 4461da177e4SLinus Torvalds int (*auth_cfm) (struct hci_conn *conn, __u8 status); 4471da177e4SLinus Torvalds int (*encrypt_cfm) (struct hci_conn *conn, __u8 status); 4481da177e4SLinus Torvalds }; 4491da177e4SLinus Torvalds 4501da177e4SLinus Torvalds static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type) 4511da177e4SLinus Torvalds { 4521da177e4SLinus Torvalds register struct hci_proto *hp; 4531da177e4SLinus Torvalds int mask = 0; 4541da177e4SLinus Torvalds 4551da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 4561da177e4SLinus Torvalds if (hp && hp->connect_ind) 4571da177e4SLinus Torvalds mask |= hp->connect_ind(hdev, bdaddr, type); 4581da177e4SLinus Torvalds 4591da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 4601da177e4SLinus Torvalds if (hp && hp->connect_ind) 4611da177e4SLinus Torvalds mask |= hp->connect_ind(hdev, bdaddr, type); 4621da177e4SLinus Torvalds 4631da177e4SLinus Torvalds return mask; 4641da177e4SLinus Torvalds } 4651da177e4SLinus Torvalds 4661da177e4SLinus Torvalds static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) 4671da177e4SLinus Torvalds { 4681da177e4SLinus Torvalds register struct hci_proto *hp; 4691da177e4SLinus Torvalds 4701da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 4711da177e4SLinus Torvalds if (hp && hp->connect_cfm) 4721da177e4SLinus Torvalds hp->connect_cfm(conn, status); 4731da177e4SLinus Torvalds 4741da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 4751da177e4SLinus Torvalds if (hp && hp->connect_cfm) 4761da177e4SLinus Torvalds hp->connect_cfm(conn, status); 4771da177e4SLinus Torvalds } 4781da177e4SLinus Torvalds 4791da177e4SLinus Torvalds static inline void hci_proto_disconn_ind(struct hci_conn *conn, __u8 reason) 4801da177e4SLinus Torvalds { 4811da177e4SLinus Torvalds register struct hci_proto *hp; 4821da177e4SLinus Torvalds 4831da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 4841da177e4SLinus Torvalds if (hp && hp->disconn_ind) 4851da177e4SLinus Torvalds hp->disconn_ind(conn, reason); 4861da177e4SLinus Torvalds 4871da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 4881da177e4SLinus Torvalds if (hp && hp->disconn_ind) 4891da177e4SLinus Torvalds hp->disconn_ind(conn, reason); 4901da177e4SLinus Torvalds } 4911da177e4SLinus Torvalds 4921da177e4SLinus Torvalds static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) 4931da177e4SLinus Torvalds { 4941da177e4SLinus Torvalds register struct hci_proto *hp; 4951da177e4SLinus Torvalds 4961da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 4971da177e4SLinus Torvalds if (hp && hp->auth_cfm) 4981da177e4SLinus Torvalds hp->auth_cfm(conn, status); 4991da177e4SLinus Torvalds 5001da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 5011da177e4SLinus Torvalds if (hp && hp->auth_cfm) 5021da177e4SLinus Torvalds hp->auth_cfm(conn, status); 5031da177e4SLinus Torvalds } 5041da177e4SLinus Torvalds 5051da177e4SLinus Torvalds static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status) 5061da177e4SLinus Torvalds { 5071da177e4SLinus Torvalds register struct hci_proto *hp; 5081da177e4SLinus Torvalds 5091da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 5101da177e4SLinus Torvalds if (hp && hp->encrypt_cfm) 5111da177e4SLinus Torvalds hp->encrypt_cfm(conn, status); 5121da177e4SLinus Torvalds 5131da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 5141da177e4SLinus Torvalds if (hp && hp->encrypt_cfm) 5151da177e4SLinus Torvalds hp->encrypt_cfm(conn, status); 5161da177e4SLinus Torvalds } 5171da177e4SLinus Torvalds 5181da177e4SLinus Torvalds int hci_register_proto(struct hci_proto *hproto); 5191da177e4SLinus Torvalds int hci_unregister_proto(struct hci_proto *hproto); 5201da177e4SLinus Torvalds 5211da177e4SLinus Torvalds /* ----- HCI callbacks ----- */ 5221da177e4SLinus Torvalds struct hci_cb { 5231da177e4SLinus Torvalds struct list_head list; 5241da177e4SLinus Torvalds 5251da177e4SLinus Torvalds char *name; 5261da177e4SLinus Torvalds 5271da177e4SLinus Torvalds void (*auth_cfm) (struct hci_conn *conn, __u8 status); 5281da177e4SLinus Torvalds void (*encrypt_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt); 5291da177e4SLinus Torvalds void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 5301da177e4SLinus Torvalds void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 5311da177e4SLinus Torvalds }; 5321da177e4SLinus Torvalds 5331da177e4SLinus Torvalds static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 5341da177e4SLinus Torvalds { 5351da177e4SLinus Torvalds struct list_head *p; 5361da177e4SLinus Torvalds 5371da177e4SLinus Torvalds hci_proto_auth_cfm(conn, status); 5381da177e4SLinus Torvalds 5391da177e4SLinus Torvalds read_lock_bh(&hci_cb_list_lock); 5401da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 5411da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 5421da177e4SLinus Torvalds if (cb->auth_cfm) 5431da177e4SLinus Torvalds cb->auth_cfm(conn, status); 5441da177e4SLinus Torvalds } 5451da177e4SLinus Torvalds read_unlock_bh(&hci_cb_list_lock); 5461da177e4SLinus Torvalds } 5471da177e4SLinus Torvalds 5481da177e4SLinus Torvalds static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt) 5491da177e4SLinus Torvalds { 5501da177e4SLinus Torvalds struct list_head *p; 5511da177e4SLinus Torvalds 5521da177e4SLinus Torvalds hci_proto_encrypt_cfm(conn, status); 5531da177e4SLinus Torvalds 5541da177e4SLinus Torvalds read_lock_bh(&hci_cb_list_lock); 5551da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 5561da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 5571da177e4SLinus Torvalds if (cb->encrypt_cfm) 5581da177e4SLinus Torvalds cb->encrypt_cfm(conn, status, encrypt); 5591da177e4SLinus Torvalds } 5601da177e4SLinus Torvalds read_unlock_bh(&hci_cb_list_lock); 5611da177e4SLinus Torvalds } 5621da177e4SLinus Torvalds 5631da177e4SLinus Torvalds static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 5641da177e4SLinus Torvalds { 5651da177e4SLinus Torvalds struct list_head *p; 5661da177e4SLinus Torvalds 5671da177e4SLinus Torvalds read_lock_bh(&hci_cb_list_lock); 5681da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 5691da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 5701da177e4SLinus Torvalds if (cb->key_change_cfm) 5711da177e4SLinus Torvalds cb->key_change_cfm(conn, status); 5721da177e4SLinus Torvalds } 5731da177e4SLinus Torvalds read_unlock_bh(&hci_cb_list_lock); 5741da177e4SLinus Torvalds } 5751da177e4SLinus Torvalds 5761da177e4SLinus Torvalds static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role) 5771da177e4SLinus Torvalds { 5781da177e4SLinus Torvalds struct list_head *p; 5791da177e4SLinus Torvalds 5801da177e4SLinus Torvalds read_lock_bh(&hci_cb_list_lock); 5811da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 5821da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 5831da177e4SLinus Torvalds if (cb->role_switch_cfm) 5841da177e4SLinus Torvalds cb->role_switch_cfm(conn, status, role); 5851da177e4SLinus Torvalds } 5861da177e4SLinus Torvalds read_unlock_bh(&hci_cb_list_lock); 5871da177e4SLinus Torvalds } 5881da177e4SLinus Torvalds 5891da177e4SLinus Torvalds int hci_register_cb(struct hci_cb *hcb); 5901da177e4SLinus Torvalds int hci_unregister_cb(struct hci_cb *hcb); 5911da177e4SLinus Torvalds 5921da177e4SLinus Torvalds int hci_register_notifier(struct notifier_block *nb); 5931da177e4SLinus Torvalds int hci_unregister_notifier(struct notifier_block *nb); 5941da177e4SLinus Torvalds 5951da177e4SLinus Torvalds int hci_send_cmd(struct hci_dev *hdev, __u16 ogf, __u16 ocf, __u32 plen, void *param); 5961da177e4SLinus Torvalds int hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags); 5971da177e4SLinus Torvalds int hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 5981da177e4SLinus Torvalds 5991da177e4SLinus Torvalds void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 ogf, __u16 ocf); 6001da177e4SLinus Torvalds 6011da177e4SLinus Torvalds void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data); 6021da177e4SLinus Torvalds 6031da177e4SLinus Torvalds /* ----- HCI Sockets ----- */ 6041da177e4SLinus Torvalds void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 6051da177e4SLinus Torvalds 6061da177e4SLinus Torvalds /* HCI info for socket */ 6071da177e4SLinus Torvalds #define hci_pi(sk) ((struct hci_pinfo *) sk) 6081da177e4SLinus Torvalds 6091da177e4SLinus Torvalds struct hci_pinfo { 6101da177e4SLinus Torvalds struct bt_sock bt; 6111da177e4SLinus Torvalds struct hci_dev *hdev; 6121da177e4SLinus Torvalds struct hci_filter filter; 6131da177e4SLinus Torvalds __u32 cmsg_mask; 6141da177e4SLinus Torvalds }; 6151da177e4SLinus Torvalds 6161da177e4SLinus Torvalds /* HCI security filter */ 6171da177e4SLinus Torvalds #define HCI_SFLT_MAX_OGF 5 6181da177e4SLinus Torvalds 6191da177e4SLinus Torvalds struct hci_sec_filter { 6201da177e4SLinus Torvalds __u32 type_mask; 6211da177e4SLinus Torvalds __u32 event_mask[2]; 6221da177e4SLinus Torvalds __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; 6231da177e4SLinus Torvalds }; 6241da177e4SLinus Torvalds 6251da177e4SLinus Torvalds /* ----- HCI requests ----- */ 6261da177e4SLinus Torvalds #define HCI_REQ_DONE 0 6271da177e4SLinus Torvalds #define HCI_REQ_PEND 1 6281da177e4SLinus Torvalds #define HCI_REQ_CANCELED 2 6291da177e4SLinus Torvalds 6301da177e4SLinus Torvalds #define hci_req_lock(d) down(&d->req_lock) 6311da177e4SLinus Torvalds #define hci_req_unlock(d) up(&d->req_lock) 6321da177e4SLinus Torvalds 6331da177e4SLinus Torvalds void hci_req_complete(struct hci_dev *hdev, int result); 6341da177e4SLinus Torvalds 6351da177e4SLinus Torvalds #endif /* __HCI_CORE_H */ 636