/* Bluetooth HCI connection handling. */
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/kernel.h>
-#include <linux/major.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/poll.h>
#define BT_DBG(D...)
#endif
-void hci_acl_connect(struct hci_conn *conn)
+static void hci_acl_connect(struct hci_conn *conn)
{
struct hci_dev *hdev = conn->hdev;
struct inquiry_entry *ie;
bacpy(&cp.bdaddr, &conn->dst);
cp.pscan_rep_mode = 0x02;
- if ((ie = inquiry_cache_lookup(hdev, &conn->dst)) &&
+ if ((ie = hci_inquiry_cache_lookup(hdev, &conn->dst)) &&
inquiry_entry_age(ie) <= INQUIRY_ENTRY_AGE_MAX) {
- cp.pscan_rep_mode = ie->info.pscan_rep_mode;
- cp.pscan_mode = ie->info.pscan_mode;
- cp.clock_offset = ie->info.clock_offset | __cpu_to_le16(0x8000);
+ cp.pscan_rep_mode = ie->data.pscan_rep_mode;
+ cp.pscan_mode = ie->data.pscan_mode;
+ cp.clock_offset = ie->data.clock_offset | __cpu_to_le16(0x8000);
+ memcpy(conn->dev_class, ie->data.dev_class, 3);
}
cp.pkt_type = __cpu_to_le16(hdev->pkt_type & ACL_PTYPE_MASK);
static void hci_conn_timeout(unsigned long arg)
{
- struct hci_conn *conn = (void *)arg;
- struct hci_dev *hdev = conn->hdev;
+ struct hci_conn *conn = (void *) arg;
+ struct hci_dev *hdev = conn->hdev;
BT_DBG("conn %p state %d", conn, conn->state);
return;
}
-static void hci_conn_init_timer(struct hci_conn *conn)
+static void hci_conn_idle(unsigned long arg)
{
- init_timer(&conn->timer);
- conn->timer.function = hci_conn_timeout;
- conn->timer.data = (unsigned long)conn;
+ struct hci_conn *conn = (void *) arg;
+
+ BT_DBG("conn %p mode %d", conn, conn->mode);
+
+ hci_conn_enter_sniff_mode(conn);
}
struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
BT_DBG("%s dst %s", hdev->name, batostr(dst));
- if (!(conn = kmalloc(sizeof(struct hci_conn), GFP_ATOMIC)))
+ conn = kzalloc(sizeof(struct hci_conn), GFP_ATOMIC);
+ if (!conn)
return NULL;
- memset(conn, 0, sizeof(struct hci_conn));
bacpy(&conn->dst, dst);
- conn->type = type;
conn->hdev = hdev;
+ conn->type = type;
+ conn->mode = HCI_CM_ACTIVE;
conn->state = BT_OPEN;
+ conn->power_save = 1;
+
skb_queue_head_init(&conn->data_q);
- hci_conn_init_timer(conn);
+
+ init_timer(&conn->disc_timer);
+ conn->disc_timer.function = hci_conn_timeout;
+ conn->disc_timer.data = (unsigned long) conn;
+
+ init_timer(&conn->idle_timer);
+ conn->idle_timer.function = hci_conn_idle;
+ conn->idle_timer.data = (unsigned long) conn;
atomic_set(&conn->refcnt, 0);
hci_dev_hold(hdev);
tasklet_disable(&hdev->tx_task);
- hci_conn_hash_add(hdev, conn);
- tasklet_enable(&hdev->tx_task);
+ hci_conn_hash_add(hdev, conn);
if (hdev->notify)
hdev->notify(hdev, HCI_NOTIFY_CONN_ADD);
+ tasklet_enable(&hdev->tx_task);
+
return conn;
}
BT_DBG("%s conn %p handle %d", hdev->name, conn, conn->handle);
- hci_conn_del_timer(conn);
+ del_timer(&conn->idle_timer);
+
+ del_timer(&conn->disc_timer);
if (conn->type == SCO_LINK) {
struct hci_conn *acl = conn->link;
hdev->acl_cnt += conn->sent;
}
+ tasklet_disable(&hdev->tx_task);
+
+ hci_conn_hash_del(hdev, conn);
if (hdev->notify)
hdev->notify(hdev, HCI_NOTIFY_CONN_DEL);
- tasklet_disable(&hdev->tx_task);
- hci_conn_hash_del(hdev, conn);
tasklet_enable(&hdev->tx_task);
skb_queue_purge(&conn->data_q);
list_for_each(p, &hci_dev_list) {
struct hci_dev *d = list_entry(p, struct hci_dev, list);
- if (!test_bit(HCI_UP, &d->flags))
+ if (!test_bit(HCI_UP, &d->flags) || test_bit(HCI_RAW, &d->flags))
continue;
/* Simple routing:
}
EXPORT_SYMBOL(hci_conn_encrypt);
+/* Change link key */
+int hci_conn_change_link_key(struct hci_conn *conn)
+{
+ BT_DBG("conn %p", conn);
+
+ if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) {
+ struct hci_cp_change_conn_link_key cp;
+ cp.handle = __cpu_to_le16(conn->handle);
+ hci_send_cmd(conn->hdev, OGF_LINK_CTL, OCF_CHANGE_CONN_LINK_KEY, sizeof(cp), &cp);
+ }
+ return 0;
+}
+EXPORT_SYMBOL(hci_conn_change_link_key);
+
+/* Switch role */
+int hci_conn_switch_role(struct hci_conn *conn, uint8_t role)
+{
+ BT_DBG("conn %p", conn);
+
+ if (!role && conn->link_mode & HCI_LM_MASTER)
+ return 1;
+
+ if (!test_and_set_bit(HCI_CONN_RSWITCH_PEND, &conn->pend)) {
+ struct hci_cp_switch_role cp;
+ bacpy(&cp.bdaddr, &conn->dst);
+ cp.role = role;
+ hci_send_cmd(conn->hdev, OGF_LINK_POLICY, OCF_SWITCH_ROLE, sizeof(cp), &cp);
+ }
+ return 0;
+}
+EXPORT_SYMBOL(hci_conn_switch_role);
+
+/* Enter active mode */
+void hci_conn_enter_active_mode(struct hci_conn *conn)
+{
+ struct hci_dev *hdev = conn->hdev;
+
+ BT_DBG("conn %p mode %d", conn, conn->mode);
+
+ if (test_bit(HCI_RAW, &hdev->flags))
+ return;
+
+ if (conn->mode != HCI_CM_SNIFF || !conn->power_save)
+ goto timer;
+
+ if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) {
+ struct hci_cp_exit_sniff_mode cp;
+ cp.handle = __cpu_to_le16(conn->handle);
+ hci_send_cmd(hdev, OGF_LINK_POLICY,
+ OCF_EXIT_SNIFF_MODE, sizeof(cp), &cp);
+ }
+
+timer:
+ if (hdev->idle_timeout > 0)
+ mod_timer(&conn->idle_timer,
+ jiffies + msecs_to_jiffies(hdev->idle_timeout));
+}
+
+/* Enter sniff mode */
+void hci_conn_enter_sniff_mode(struct hci_conn *conn)
+{
+ struct hci_dev *hdev = conn->hdev;
+
+ BT_DBG("conn %p mode %d", conn, conn->mode);
+
+ if (test_bit(HCI_RAW, &hdev->flags))
+ return;
+
+ if (!lmp_sniff_capable(hdev) || !lmp_sniff_capable(conn))
+ return;
+
+ if (conn->mode != HCI_CM_ACTIVE || !(conn->link_policy & HCI_LP_SNIFF))
+ return;
+
+ if (lmp_sniffsubr_capable(hdev) && lmp_sniffsubr_capable(conn)) {
+ struct hci_cp_sniff_subrate cp;
+ cp.handle = __cpu_to_le16(conn->handle);
+ cp.max_latency = __constant_cpu_to_le16(0);
+ cp.min_remote_timeout = __constant_cpu_to_le16(0);
+ cp.min_local_timeout = __constant_cpu_to_le16(0);
+ hci_send_cmd(hdev, OGF_LINK_POLICY,
+ OCF_SNIFF_SUBRATE, sizeof(cp), &cp);
+ }
+
+ if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) {
+ struct hci_cp_sniff_mode cp;
+ cp.handle = __cpu_to_le16(conn->handle);
+ cp.max_interval = __cpu_to_le16(hdev->sniff_max_interval);
+ cp.min_interval = __cpu_to_le16(hdev->sniff_min_interval);
+ cp.attempt = __constant_cpu_to_le16(4);
+ cp.timeout = __constant_cpu_to_le16(1);
+ hci_send_cmd(hdev, OGF_LINK_POLICY,
+ OCF_SNIFF_MODE, sizeof(cp), &cp);
+ }
+}
+
/* Drop all connection on the device */
void hci_conn_hash_flush(struct hci_dev *hdev)
{
size = sizeof(req) + req.conn_num * sizeof(*ci);
- if (!(cl = (void *) kmalloc(size, GFP_KERNEL)))
+ if (!(cl = kmalloc(size, GFP_KERNEL)))
return -ENOMEM;
if (!(hdev = hci_dev_get(req.dev_id))) {
git://git.onelab.eu / linux-2.6.git / blobdiff