#include <linux/interrupt.h>
#include <linux/notifier.h>
#include <linux/rfkill.h>
+#include <linux/timer.h>
+#include <linux/crypto.h>
#include <net/sock.h>
#include <asm/system.h>
static void hci_cmd_task(unsigned long arg);
static void hci_rx_task(unsigned long arg);
static void hci_tx_task(unsigned long arg);
-static void hci_notify(struct hci_dev *hdev, int event);
static DEFINE_RWLOCK(hci_task_lock);
/* Execute request and wait for completion. */
static int __hci_request(struct hci_dev *hdev, void (*req)(struct hci_dev *hdev, unsigned long opt),
- unsigned long opt, __u32 timeout)
+ unsigned long opt, __u32 timeout)
{
DECLARE_WAITQUEUE(wait, current);
int err = 0;
switch (hdev->req_status) {
case HCI_REQ_DONE:
- err = -bt_err(hdev->req_result);
+ err = -bt_to_errno(hdev->req_result);
break;
case HCI_REQ_CANCELED:
}
static inline int hci_request(struct hci_dev *hdev, void (*req)(struct hci_dev *hdev, unsigned long opt),
- unsigned long opt, __u32 timeout)
+ unsigned long opt, __u32 timeout)
{
int ret;
BT_DBG("%s %ld", hdev->name, opt);
/* Reset device */
+ set_bit(HCI_RESET, &hdev->flags);
hci_send_cmd(hdev, HCI_OP_RESET, 0, NULL);
}
/* Mandatory initialization */
/* Reset */
- if (!test_bit(HCI_QUIRK_NO_RESET, &hdev->quirks))
+ if (!test_bit(HCI_QUIRK_NO_RESET, &hdev->quirks)) {
+ set_bit(HCI_RESET, &hdev->flags);
hci_send_cmd(hdev, HCI_OP_RESET, 0, NULL);
+ }
/* Read Local Supported Features */
hci_send_cmd(hdev, HCI_OP_READ_LOCAL_FEATURES, 0, NULL);
flt_type = HCI_FLT_CLEAR_ALL;
hci_send_cmd(hdev, HCI_OP_SET_EVENT_FLT, 1, &flt_type);
- /* Page timeout ~20 secs */
- param = cpu_to_le16(0x8000);
- hci_send_cmd(hdev, HCI_OP_WRITE_PG_TIMEOUT, 2, ¶m);
-
/* Connection accept timeout ~20 secs */
param = cpu_to_le16(0x7d00);
hci_send_cmd(hdev, HCI_OP_WRITE_CA_TIMEOUT, 2, ¶m);
hci_send_cmd(hdev, HCI_OP_DELETE_STORED_LINK_KEY, sizeof(cp), &cp);
}
+static void hci_le_init_req(struct hci_dev *hdev, unsigned long opt)
+{
+ BT_DBG("%s", hdev->name);
+
+ /* Read LE buffer size */
+ hci_send_cmd(hdev, HCI_OP_LE_READ_BUFFER_SIZE, 0, NULL);
+}
+
static void hci_scan_req(struct hci_dev *hdev, unsigned long opt)
{
__u8 scan = opt;
if (copy_from_user(&ir, ptr, sizeof(ir)))
return -EFAULT;
- if (!(hdev = hci_dev_get(ir.dev_id)))
+ hdev = hci_dev_get(ir.dev_id);
+ if (!hdev)
return -ENODEV;
hci_dev_lock_bh(hdev);
/* cache_dump can't sleep. Therefore we allocate temp buffer and then
* copy it to the user space.
*/
- buf = kmalloc(sizeof(struct inquiry_info) *max_rsp, GFP_KERNEL);
+ buf = kmalloc(sizeof(struct inquiry_info) * max_rsp, GFP_KERNEL);
if (!buf) {
err = -ENOMEM;
goto done;
struct hci_dev *hdev;
int ret = 0;
- if (!(hdev = hci_dev_get(dev)))
+ hdev = hci_dev_get(dev);
+ if (!hdev)
return -ENODEV;
BT_DBG("%s %p", hdev->name, hdev);
hci_req_lock(hdev);
+ if (test_bit(HCI_UNREGISTER, &hdev->flags)) {
+ ret = -ENODEV;
+ goto done;
+ }
+
if (hdev->rfkill && rfkill_blocked(hdev->rfkill)) {
ret = -ERFKILL;
goto done;
set_bit(HCI_INIT, &hdev->flags);
hdev->init_last_cmd = 0;
- //__hci_request(hdev, hci_reset_req, 0, HZ);
ret = __hci_request(hdev, hci_init_req, 0,
msecs_to_jiffies(HCI_INIT_TIMEOUT));
+ if (lmp_host_le_capable(hdev))
+ ret = __hci_request(hdev, hci_le_init_req, 0,
+ msecs_to_jiffies(HCI_INIT_TIMEOUT));
+
clear_bit(HCI_INIT, &hdev->flags);
}
hci_req_lock(hdev);
if (!test_and_clear_bit(HCI_UP, &hdev->flags)) {
+ del_timer_sync(&hdev->cmd_timer);
hci_req_unlock(hdev);
return 0;
}
/* Drop last sent command */
if (hdev->sent_cmd) {
+ del_timer_sync(&hdev->cmd_timer);
kfree_skb(hdev->sent_cmd);
hdev->sent_cmd = NULL;
}
hdev->flush(hdev);
atomic_set(&hdev->cmd_cnt, 1);
- hdev->acl_cnt = 0; hdev->sco_cnt = 0;
+ hdev->acl_cnt = 0; hdev->sco_cnt = 0; hdev->le_cnt = 0;
if (!test_bit(HCI_RAW, &hdev->flags))
ret = __hci_request(hdev, hci_reset_req, 0,
return 0;
}
+int hci_link_keys_clear(struct hci_dev *hdev)
+{
+ struct list_head *p, *n;
+
+ list_for_each_safe(p, n, &hdev->link_keys) {
+ struct link_key *key;
+
+ key = list_entry(p, struct link_key, list);
+
+ list_del(p);
+ kfree(key);
+ }
+
+ return 0;
+}
+
+struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr)
+{
+ struct list_head *p;
+
+ list_for_each(p, &hdev->link_keys) {
+ struct link_key *k;
+
+ k = list_entry(p, struct link_key, list);
+
+ if (bacmp(bdaddr, &k->bdaddr) == 0)
+ return k;
+ }
+
+ return NULL;
+}
+
+static int hci_persistent_key(struct hci_dev *hdev, struct hci_conn *conn,
+ u8 key_type, u8 old_key_type)
+{
+ /* Legacy key */
+ if (key_type < 0x03)
+ return 1;
+
+ /* Debug keys are insecure so don't store them persistently */
+ if (key_type == HCI_LK_DEBUG_COMBINATION)
+ return 0;
+
+ /* Changed combination key and there's no previous one */
+ if (key_type == HCI_LK_CHANGED_COMBINATION && old_key_type == 0xff)
+ return 0;
+
+ /* Security mode 3 case */
+ if (!conn)
+ return 1;
+
+ /* Neither local nor remote side had no-bonding as requirement */
+ if (conn->auth_type > 0x01 && conn->remote_auth > 0x01)
+ return 1;
+
+ /* Local side had dedicated bonding as requirement */
+ if (conn->auth_type == 0x02 || conn->auth_type == 0x03)
+ return 1;
+
+ /* Remote side had dedicated bonding as requirement */
+ if (conn->remote_auth == 0x02 || conn->remote_auth == 0x03)
+ return 1;
+
+ /* If none of the above criteria match, then don't store the key
+ * persistently */
+ return 0;
+}
+
+struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8])
+{
+ struct link_key *k;
+
+ list_for_each_entry(k, &hdev->link_keys, list) {
+ struct key_master_id *id;
+
+ if (k->type != HCI_LK_SMP_LTK)
+ continue;
+
+ if (k->dlen != sizeof(*id))
+ continue;
+
+ id = (void *) &k->data;
+ if (id->ediv == ediv &&
+ (memcmp(rand, id->rand, sizeof(id->rand)) == 0))
+ return k;
+ }
+
+ return NULL;
+}
+EXPORT_SYMBOL(hci_find_ltk);
+
+struct link_key *hci_find_link_key_type(struct hci_dev *hdev,
+ bdaddr_t *bdaddr, u8 type)
+{
+ struct link_key *k;
+
+ list_for_each_entry(k, &hdev->link_keys, list)
+ if (k->type == type && bacmp(bdaddr, &k->bdaddr) == 0)
+ return k;
+
+ return NULL;
+}
+EXPORT_SYMBOL(hci_find_link_key_type);
+
+int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
+ bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len)
+{
+ struct link_key *key, *old_key;
+ u8 old_key_type, persistent;
+
+ old_key = hci_find_link_key(hdev, bdaddr);
+ if (old_key) {
+ old_key_type = old_key->type;
+ key = old_key;
+ } else {
+ old_key_type = conn ? conn->key_type : 0xff;
+ key = kzalloc(sizeof(*key), GFP_ATOMIC);
+ if (!key)
+ return -ENOMEM;
+ list_add(&key->list, &hdev->link_keys);
+ }
+
+ BT_DBG("%s key for %s type %u", hdev->name, batostr(bdaddr), type);
+
+ /* Some buggy controller combinations generate a changed
+ * combination key for legacy pairing even when there's no
+ * previous key */
+ if (type == HCI_LK_CHANGED_COMBINATION &&
+ (!conn || conn->remote_auth == 0xff) &&
+ old_key_type == 0xff) {
+ type = HCI_LK_COMBINATION;
+ if (conn)
+ conn->key_type = type;
+ }
+
+ bacpy(&key->bdaddr, bdaddr);
+ memcpy(key->val, val, 16);
+ key->pin_len = pin_len;
+
+ if (type == HCI_LK_CHANGED_COMBINATION)
+ key->type = old_key_type;
+ else
+ key->type = type;
+
+ if (!new_key)
+ return 0;
+
+ persistent = hci_persistent_key(hdev, conn, type, old_key_type);
+
+ mgmt_new_key(hdev->id, key, persistent);
+
+ if (!persistent) {
+ list_del(&key->list);
+ kfree(key);
+ }
+
+ return 0;
+}
+
+int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
+ u8 key_size, __le16 ediv, u8 rand[8], u8 ltk[16])
+{
+ struct link_key *key, *old_key;
+ struct key_master_id *id;
+ u8 old_key_type;
+
+ BT_DBG("%s addr %s", hdev->name, batostr(bdaddr));
+
+ old_key = hci_find_link_key_type(hdev, bdaddr, HCI_LK_SMP_LTK);
+ if (old_key) {
+ key = old_key;
+ old_key_type = old_key->type;
+ } else {
+ key = kzalloc(sizeof(*key) + sizeof(*id), GFP_ATOMIC);
+ if (!key)
+ return -ENOMEM;
+ list_add(&key->list, &hdev->link_keys);
+ old_key_type = 0xff;
+ }
+
+ key->dlen = sizeof(*id);
+
+ bacpy(&key->bdaddr, bdaddr);
+ memcpy(key->val, ltk, sizeof(key->val));
+ key->type = HCI_LK_SMP_LTK;
+ key->pin_len = key_size;
+
+ id = (void *) &key->data;
+ id->ediv = ediv;
+ memcpy(id->rand, rand, sizeof(id->rand));
+
+ if (new_key)
+ mgmt_new_key(hdev->id, key, old_key_type);
+
+ return 0;
+}
+
+int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr)
+{
+ struct link_key *key;
+
+ key = hci_find_link_key(hdev, bdaddr);
+ if (!key)
+ return -ENOENT;
+
+ BT_DBG("%s removing %s", hdev->name, batostr(bdaddr));
+
+ list_del(&key->list);
+ kfree(key);
+
+ return 0;
+}
+
+/* HCI command timer function */
+static void hci_cmd_timer(unsigned long arg)
+{
+ struct hci_dev *hdev = (void *) arg;
+
+ BT_ERR("%s command tx timeout", hdev->name);
+ atomic_set(&hdev->cmd_cnt, 1);
+ tasklet_schedule(&hdev->cmd_task);
+}
+
+struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
+ bdaddr_t *bdaddr)
+{
+ struct oob_data *data;
+
+ list_for_each_entry(data, &hdev->remote_oob_data, list)
+ if (bacmp(bdaddr, &data->bdaddr) == 0)
+ return data;
+
+ return NULL;
+}
+
+int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr)
+{
+ struct oob_data *data;
+
+ data = hci_find_remote_oob_data(hdev, bdaddr);
+ if (!data)
+ return -ENOENT;
+
+ BT_DBG("%s removing %s", hdev->name, batostr(bdaddr));
+
+ list_del(&data->list);
+ kfree(data);
+
+ return 0;
+}
+
+int hci_remote_oob_data_clear(struct hci_dev *hdev)
+{
+ struct oob_data *data, *n;
+
+ list_for_each_entry_safe(data, n, &hdev->remote_oob_data, list) {
+ list_del(&data->list);
+ kfree(data);
+ }
+
+ return 0;
+}
+
+int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
+ u8 *randomizer)
+{
+ struct oob_data *data;
+
+ data = hci_find_remote_oob_data(hdev, bdaddr);
+
+ if (!data) {
+ data = kmalloc(sizeof(*data), GFP_ATOMIC);
+ if (!data)
+ return -ENOMEM;
+
+ bacpy(&data->bdaddr, bdaddr);
+ list_add(&data->list, &hdev->remote_oob_data);
+ }
+
+ memcpy(data->hash, hash, sizeof(data->hash));
+ memcpy(data->randomizer, randomizer, sizeof(data->randomizer));
+
+ BT_DBG("%s for %s", hdev->name, batostr(bdaddr));
+
+ return 0;
+}
+
+struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev,
+ bdaddr_t *bdaddr)
+{
+ struct list_head *p;
+
+ list_for_each(p, &hdev->blacklist) {
+ struct bdaddr_list *b;
+
+ b = list_entry(p, struct bdaddr_list, list);
+
+ if (bacmp(bdaddr, &b->bdaddr) == 0)
+ return b;
+ }
+
+ return NULL;
+}
+
+int hci_blacklist_clear(struct hci_dev *hdev)
+{
+ struct list_head *p, *n;
+
+ list_for_each_safe(p, n, &hdev->blacklist) {
+ struct bdaddr_list *b;
+
+ b = list_entry(p, struct bdaddr_list, list);
+
+ list_del(p);
+ kfree(b);
+ }
+
+ return 0;
+}
+
+int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr)
+{
+ struct bdaddr_list *entry;
+
+ if (bacmp(bdaddr, BDADDR_ANY) == 0)
+ return -EBADF;
+
+ if (hci_blacklist_lookup(hdev, bdaddr))
+ return -EEXIST;
+
+ entry = kzalloc(sizeof(struct bdaddr_list), GFP_KERNEL);
+ if (!entry)
+ return -ENOMEM;
+
+ bacpy(&entry->bdaddr, bdaddr);
+
+ list_add(&entry->list, &hdev->blacklist);
+
+ return mgmt_device_blocked(hdev->id, bdaddr);
+}
+
+int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr)
+{
+ struct bdaddr_list *entry;
+
+ if (bacmp(bdaddr, BDADDR_ANY) == 0) {
+ return hci_blacklist_clear(hdev);
+ }
+
+ entry = hci_blacklist_lookup(hdev, bdaddr);
+ if (!entry) {
+ return -ENOENT;
+ }
+
+ list_del(&entry->list);
+ kfree(entry);
+
+ return mgmt_device_unblocked(hdev->id, bdaddr);
+}
+
+static void hci_clear_adv_cache(unsigned long arg)
+{
+ struct hci_dev *hdev = (void *) arg;
+
+ hci_dev_lock(hdev);
+
+ hci_adv_entries_clear(hdev);
+
+ hci_dev_unlock(hdev);
+}
+
+int hci_adv_entries_clear(struct hci_dev *hdev)
+{
+ struct adv_entry *entry, *tmp;
+
+ list_for_each_entry_safe(entry, tmp, &hdev->adv_entries, list) {
+ list_del(&entry->list);
+ kfree(entry);
+ }
+
+ BT_DBG("%s adv cache cleared", hdev->name);
+
+ return 0;
+}
+
+struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr)
+{
+ struct adv_entry *entry;
+
+ list_for_each_entry(entry, &hdev->adv_entries, list)
+ if (bacmp(bdaddr, &entry->bdaddr) == 0)
+ return entry;
+
+ return NULL;
+}
+
+static inline int is_connectable_adv(u8 evt_type)
+{
+ if (evt_type == ADV_IND || evt_type == ADV_DIRECT_IND)
+ return 1;
+
+ return 0;
+}
+
+int hci_add_adv_entry(struct hci_dev *hdev,
+ struct hci_ev_le_advertising_info *ev)
+{
+ struct adv_entry *entry;
+
+ if (!is_connectable_adv(ev->evt_type))
+ return -EINVAL;
+
+ /* Only new entries should be added to adv_entries. So, if
+ * bdaddr was found, don't add it. */
+ if (hci_find_adv_entry(hdev, &ev->bdaddr))
+ return 0;
+
+ entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
+ if (!entry)
+ return -ENOMEM;
+
+ bacpy(&entry->bdaddr, &ev->bdaddr);
+ entry->bdaddr_type = ev->bdaddr_type;
+
+ list_add(&entry->list, &hdev->adv_entries);
+
+ BT_DBG("%s adv entry added: address %s type %u", hdev->name,
+ batostr(&entry->bdaddr), entry->bdaddr_type);
+
+ return 0;
+}
+
/* Register HCI device */
int hci_register_dev(struct hci_dev *hdev)
{
hdev->pkt_type = (HCI_DM1 | HCI_DH1 | HCI_HV1);
hdev->esco_type = (ESCO_HV1);
hdev->link_mode = (HCI_LM_ACCEPT);
+ hdev->io_capability = 0x03; /* No Input No Output */
hdev->idle_timeout = 0;
hdev->sniff_max_interval = 800;
skb_queue_head_init(&hdev->cmd_q);
skb_queue_head_init(&hdev->raw_q);
+ setup_timer(&hdev->cmd_timer, hci_cmd_timer, (unsigned long) hdev);
+
for (i = 0; i < NUM_REASSEMBLY; i++)
hdev->reassembly[i] = NULL;
INIT_LIST_HEAD(&hdev->uuids);
+ INIT_LIST_HEAD(&hdev->link_keys);
+
+ INIT_LIST_HEAD(&hdev->remote_oob_data);
+
+ INIT_LIST_HEAD(&hdev->adv_entries);
+ setup_timer(&hdev->adv_timer, hci_clear_adv_cache,
+ (unsigned long) hdev);
+
INIT_WORK(&hdev->power_on, hci_power_on);
INIT_WORK(&hdev->power_off, hci_power_off);
setup_timer(&hdev->off_timer, hci_auto_off, (unsigned long) hdev);
BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
+ set_bit(HCI_UNREGISTER, &hdev->flags);
+
write_lock_bh(&hci_dev_list_lock);
list_del(&hdev->list);
write_unlock_bh(&hci_dev_list_lock);
hci_unregister_sysfs(hdev);
+ hci_del_off_timer(hdev);
+ del_timer(&hdev->adv_timer);
+
destroy_workqueue(hdev->workqueue);
hci_dev_lock_bh(hdev);
hci_blacklist_clear(hdev);
hci_uuids_clear(hdev);
+ hci_link_keys_clear(hdev);
+ hci_remote_oob_data_clear(hdev);
+ hci_adv_entries_clear(hdev);
hci_dev_unlock_bh(hdev);
__hci_dev_put(hdev);
EXPORT_SYMBOL(hci_recv_frame);
static int hci_reassembly(struct hci_dev *hdev, int type, void *data,
- int count, __u8 index, gfp_t gfp_mask)
+ int count, __u8 index)
{
int len = 0;
int hlen = 0;
break;
}
- skb = bt_skb_alloc(len, gfp_mask);
+ skb = bt_skb_alloc(len, GFP_ATOMIC);
if (!skb)
return -ENOMEM;
return -EILSEQ;
while (count) {
- rem = hci_reassembly(hdev, type, data, count,
- type - 1, GFP_ATOMIC);
+ rem = hci_reassembly(hdev, type, data, count, type - 1);
if (rem < 0)
return rem;
data += (count - rem);
count = rem;
- };
+ }
return rem;
}
} else
type = bt_cb(skb)->pkt_type;
- rem = hci_reassembly(hdev, type, data,
- count, STREAM_REASSEMBLY, GFP_ATOMIC);
+ rem = hci_reassembly(hdev, type, data, count,
+ STREAM_REASSEMBLY);
if (rem < 0)
return rem;
data += (count - rem);
count = rem;
- };
+ }
return rem;
}
min = c->sent;
conn = c;
}
+
+ if (hci_conn_num(hdev, type) == num)
+ break;
}
if (conn) {
- int cnt = (type == ACL_LINK ? hdev->acl_cnt : hdev->sco_cnt);
- int q = cnt / num;
+ int cnt, q;
+
+ switch (conn->type) {
+ case ACL_LINK:
+ cnt = hdev->acl_cnt;
+ break;
+ case SCO_LINK:
+ case ESCO_LINK:
+ cnt = hdev->sco_cnt;
+ break;
+ case LE_LINK:
+ cnt = hdev->le_mtu ? hdev->le_cnt : hdev->acl_cnt;
+ break;
+ default:
+ cnt = 0;
+ BT_ERR("Unknown link type");
+ }
+
+ q = cnt / num;
*quote = q ? q : 1;
} else
*quote = 0;
return conn;
}
-static inline void hci_acl_tx_to(struct hci_dev *hdev)
+static inline void hci_link_tx_to(struct hci_dev *hdev, __u8 type)
{
struct hci_conn_hash *h = &hdev->conn_hash;
struct list_head *p;
struct hci_conn *c;
- BT_ERR("%s ACL tx timeout", hdev->name);
+ BT_ERR("%s link tx timeout", hdev->name);
/* Kill stalled connections */
list_for_each(p, &h->list) {
c = list_entry(p, struct hci_conn, list);
- if (c->type == ACL_LINK && c->sent) {
- BT_ERR("%s killing stalled ACL connection %s",
+ if (c->type == type && c->sent) {
+ BT_ERR("%s killing stalled connection %s",
hdev->name, batostr(&c->dst));
hci_acl_disconn(c, 0x13);
}
BT_DBG("%s", hdev->name);
+ if (!hci_conn_num(hdev, ACL_LINK))
+ return;
+
if (!test_bit(HCI_RAW, &hdev->flags)) {
/* ACL tx timeout must be longer than maximum
* link supervision timeout (40.9 seconds) */
if (!hdev->acl_cnt && time_after(jiffies, hdev->acl_last_tx + HZ * 45))
- hci_acl_tx_to(hdev);
+ hci_link_tx_to(hdev, ACL_LINK);
}
while (hdev->acl_cnt && (conn = hci_low_sent(hdev, ACL_LINK, "e))) {
while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
BT_DBG("skb %p len %d", skb, skb->len);
- hci_conn_enter_active_mode(conn);
+ hci_conn_enter_active_mode(conn, bt_cb(skb)->force_active);
hci_send_frame(skb);
hdev->acl_last_tx = jiffies;
BT_DBG("%s", hdev->name);
+ if (!hci_conn_num(hdev, SCO_LINK))
+ return;
+
while (hdev->sco_cnt && (conn = hci_low_sent(hdev, SCO_LINK, "e))) {
while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
BT_DBG("skb %p len %d", skb, skb->len);
BT_DBG("%s", hdev->name);
+ if (!hci_conn_num(hdev, ESCO_LINK))
+ return;
+
while (hdev->sco_cnt && (conn = hci_low_sent(hdev, ESCO_LINK, "e))) {
while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
BT_DBG("skb %p len %d", skb, skb->len);
}
}
+static inline void hci_sched_le(struct hci_dev *hdev)
+{
+ struct hci_conn *conn;
+ struct sk_buff *skb;
+ int quote, cnt;
+
+ BT_DBG("%s", hdev->name);
+
+ if (!hci_conn_num(hdev, LE_LINK))
+ return;
+
+ if (!test_bit(HCI_RAW, &hdev->flags)) {
+ /* LE tx timeout must be longer than maximum
+ * link supervision timeout (40.9 seconds) */
+ if (!hdev->le_cnt && hdev->le_pkts &&
+ time_after(jiffies, hdev->le_last_tx + HZ * 45))
+ hci_link_tx_to(hdev, LE_LINK);
+ }
+
+ cnt = hdev->le_pkts ? hdev->le_cnt : hdev->acl_cnt;
+ while (cnt && (conn = hci_low_sent(hdev, LE_LINK, "e))) {
+ while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
+ BT_DBG("skb %p len %d", skb, skb->len);
+
+ hci_send_frame(skb);
+ hdev->le_last_tx = jiffies;
+
+ cnt--;
+ conn->sent++;
+ }
+ }
+ if (hdev->le_pkts)
+ hdev->le_cnt = cnt;
+ else
+ hdev->acl_cnt = cnt;
+}
+
static void hci_tx_task(unsigned long arg)
{
struct hci_dev *hdev = (struct hci_dev *) arg;
read_lock(&hci_task_lock);
- BT_DBG("%s acl %d sco %d", hdev->name, hdev->acl_cnt, hdev->sco_cnt);
+ BT_DBG("%s acl %d sco %d le %d", hdev->name, hdev->acl_cnt,
+ hdev->sco_cnt, hdev->le_cnt);
/* Schedule queues and send stuff to HCI driver */
hci_sched_esco(hdev);
+ hci_sched_le(hdev);
+
/* Send next queued raw (unknown type) packet */
while ((skb = skb_dequeue(&hdev->raw_q)))
hci_send_frame(skb);
read_unlock(&hci_task_lock);
}
-/* ----- HCI RX task (incoming data proccessing) ----- */
+/* ----- HCI RX task (incoming data processing) ----- */
/* ACL data packet */
static inline void hci_acldata_packet(struct hci_dev *hdev, struct sk_buff *skb)
if (conn) {
register struct hci_proto *hp;
- hci_conn_enter_active_mode(conn);
+ hci_conn_enter_active_mode(conn, bt_cb(skb)->force_active);
/* Send to upper protocol */
hp = hci_proto[HCI_PROTO_L2CAP];
BT_DBG("%s cmd %d", hdev->name, atomic_read(&hdev->cmd_cnt));
- if (!atomic_read(&hdev->cmd_cnt) && time_after(jiffies, hdev->cmd_last_tx + HZ)) {
- BT_ERR("%s command tx timeout", hdev->name);
- atomic_set(&hdev->cmd_cnt, 1);
- }
-
/* Send queued commands */
- if (atomic_read(&hdev->cmd_cnt) && (skb = skb_dequeue(&hdev->cmd_q))) {
+ if (atomic_read(&hdev->cmd_cnt)) {
+ skb = skb_dequeue(&hdev->cmd_q);
+ if (!skb)
+ return;
+
kfree_skb(hdev->sent_cmd);
hdev->sent_cmd = skb_clone(skb, GFP_ATOMIC);
if (hdev->sent_cmd) {
atomic_dec(&hdev->cmd_cnt);
hci_send_frame(skb);
- hdev->cmd_last_tx = jiffies;
+ if (test_bit(HCI_RESET, &hdev->flags))
+ del_timer(&hdev->cmd_timer);
+ else
+ mod_timer(&hdev->cmd_timer,
+ jiffies + msecs_to_jiffies(HCI_CMD_TIMEOUT));
} else {
skb_queue_head(&hdev->cmd_q, skb);
tasklet_schedule(&hdev->cmd_task);
projects / linux-flexiantxendom0.git / blobdiff