[Bluetooth] Add automatic sniff mode support
This patch introduces the automatic sniff mode feature. This allows
the host to switch idle connections into sniff mode to safe power.
Signed-off-by: Ulisses Furquim <ulissesf@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 99c53f6..b2bdb1a 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -101,9 +101,10 @@
#define HCIINQUIRY _IOR('H', 240, int)
/* HCI timeouts */
-#define HCI_CONN_TIMEOUT (HZ * 40)
-#define HCI_DISCONN_TIMEOUT (HZ * 2)
-#define HCI_CONN_IDLE_TIMEOUT (HZ * 60)
+#define HCI_CONNECT_TIMEOUT (40000) /* 40 seconds */
+#define HCI_DISCONN_TIMEOUT (2000) /* 2 seconds */
+#define HCI_IDLE_TIMEOUT (6000) /* 6 seconds */
+#define HCI_INIT_TIMEOUT (10000) /* 10 seconds */
/* HCI Packet types */
#define HCI_COMMAND_PKT 0x01
@@ -145,7 +146,7 @@
#define LMP_TACCURACY 0x10
#define LMP_RSWITCH 0x20
#define LMP_HOLD 0x40
-#define LMP_SNIF 0x80
+#define LMP_SNIFF 0x80
#define LMP_PARK 0x01
#define LMP_RSSI 0x02
@@ -160,13 +161,21 @@
#define LMP_PSCHEME 0x02
#define LMP_PCONTROL 0x04
+#define LMP_SNIFF_SUBR 0x02
+
+/* Connection modes */
+#define HCI_CM_ACTIVE 0x0000
+#define HCI_CM_HOLD 0x0001
+#define HCI_CM_SNIFF 0x0002
+#define HCI_CM_PARK 0x0003
+
/* Link policies */
#define HCI_LP_RSWITCH 0x0001
#define HCI_LP_HOLD 0x0002
#define HCI_LP_SNIFF 0x0004
#define HCI_LP_PARK 0x0008
-/* Link mode */
+/* Link modes */
#define HCI_LM_ACCEPT 0x8000
#define HCI_LM_MASTER 0x0001
#define HCI_LM_AUTH 0x0002
@@ -192,7 +201,7 @@
} __attribute__ ((packed));
#define OCF_READ_LOCAL_FEATURES 0x0003
-struct hci_rp_read_loc_features {
+struct hci_rp_read_local_features {
__u8 status;
__u8 features[8];
} __attribute__ ((packed));
@@ -376,17 +385,32 @@
} __attribute__ ((packed));
#define OCF_READ_REMOTE_FEATURES 0x001B
-struct hci_cp_read_rmt_features {
+struct hci_cp_read_remote_features {
__le16 handle;
} __attribute__ ((packed));
#define OCF_READ_REMOTE_VERSION 0x001D
-struct hci_cp_read_rmt_version {
+struct hci_cp_read_remote_version {
__le16 handle;
} __attribute__ ((packed));
/* Link Policy */
-#define OGF_LINK_POLICY 0x02
+#define OGF_LINK_POLICY 0x02
+
+#define OCF_SNIFF_MODE 0x0003
+struct hci_cp_sniff_mode {
+ __le16 handle;
+ __le16 max_interval;
+ __le16 min_interval;
+ __le16 attempt;
+ __le16 timeout;
+} __attribute__ ((packed));
+
+#define OCF_EXIT_SNIFF_MODE 0x0004
+struct hci_cp_exit_sniff_mode {
+ __le16 handle;
+} __attribute__ ((packed));
+
#define OCF_ROLE_DISCOVERY 0x0009
struct hci_cp_role_discovery {
__le16 handle;
@@ -407,7 +431,7 @@
__le16 policy;
} __attribute__ ((packed));
-#define OCF_SWITCH_ROLE 0x000B
+#define OCF_SWITCH_ROLE 0x000B
struct hci_cp_switch_role {
bdaddr_t bdaddr;
__u8 role;
@@ -423,6 +447,14 @@
__le16 handle;
} __attribute__ ((packed));
+#define OCF_SNIFF_SUBRATE 0x0011
+struct hci_cp_sniff_subrate {
+ __le16 handle;
+ __le16 max_latency;
+ __le16 min_remote_timeout;
+ __le16 min_local_timeout;
+} __attribute__ ((packed));
+
/* Status params */
#define OGF_STATUS_PARAM 0x05
@@ -582,15 +614,15 @@
__u8 key_type;
} __attribute__ ((packed));
-#define HCI_EV_RMT_FEATURES 0x0B
-struct hci_ev_rmt_features {
+#define HCI_EV_REMOTE_FEATURES 0x0B
+struct hci_ev_remote_features {
__u8 status;
__le16 handle;
__u8 features[8];
} __attribute__ ((packed));
-#define HCI_EV_RMT_VERSION 0x0C
-struct hci_ev_rmt_version {
+#define HCI_EV_REMOTE_VERSION 0x0C
+struct hci_ev_remote_version {
__u8 status;
__le16 handle;
__u8 lmp_ver;
@@ -611,6 +643,16 @@
__u8 pscan_rep_mode;
} __attribute__ ((packed));
+#define HCI_EV_SNIFF_SUBRATE 0x2E
+struct hci_ev_sniff_subrate {
+ __u8 status;
+ __le16 handle;
+ __le16 max_tx_latency;
+ __le16 max_rx_latency;
+ __le16 max_remote_timeout;
+ __le16 max_local_timeout;
+} __attribute__ ((packed));
+
/* Internal events generated by Bluetooth stack */
#define HCI_EV_STACK_INTERNAL 0xFD
struct hci_ev_stack_internal {
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index bb9f81d..f685270 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -31,10 +31,7 @@
#define HCI_PROTO_L2CAP 0
#define HCI_PROTO_SCO 1
-#define HCI_INIT_TIMEOUT (HZ * 10)
-
/* HCI Core structures */
-
struct inquiry_data {
bdaddr_t bdaddr;
__u8 pscan_rep_mode;
@@ -81,6 +78,10 @@
__u16 link_policy;
__u16 link_mode;
+ __u32 idle_timeout;
+ __u16 sniff_min_interval;
+ __u16 sniff_max_interval;
+
unsigned long quirks;
atomic_t cmd_cnt;
@@ -145,18 +146,24 @@
bdaddr_t dst;
__u16 handle;
__u16 state;
+ __u8 mode;
__u8 type;
__u8 out;
__u8 dev_class[3];
+ __u8 features[8];
+ __u16 interval;
+ __u16 link_policy;
__u32 link_mode;
+ __u8 power_save;
unsigned long pend;
-
+
unsigned int sent;
-
+
struct sk_buff_head data_q;
- struct timer_list timer;
-
+ struct timer_list disc_timer;
+ struct timer_list idle_timer;
+
struct hci_dev *hdev;
void *l2cap_data;
void *sco_data;
@@ -211,7 +218,8 @@
enum {
HCI_CONN_AUTH_PEND,
HCI_CONN_ENCRYPT_PEND,
- HCI_CONN_RSWITCH_PEND
+ HCI_CONN_RSWITCH_PEND,
+ HCI_CONN_MODE_CHANGE_PEND,
};
static inline void hci_conn_hash_init(struct hci_dev *hdev)
@@ -286,31 +294,27 @@
int hci_conn_change_link_key(struct hci_conn *conn);
int hci_conn_switch_role(struct hci_conn *conn, uint8_t role);
-static inline void hci_conn_set_timer(struct hci_conn *conn, unsigned long timeout)
-{
- mod_timer(&conn->timer, jiffies + timeout);
-}
-
-static inline void hci_conn_del_timer(struct hci_conn *conn)
-{
- del_timer(&conn->timer);
-}
+void hci_conn_enter_active_mode(struct hci_conn *conn);
+void hci_conn_enter_sniff_mode(struct hci_conn *conn);
static inline void hci_conn_hold(struct hci_conn *conn)
{
atomic_inc(&conn->refcnt);
- hci_conn_del_timer(conn);
+ del_timer(&conn->disc_timer);
}
static inline void hci_conn_put(struct hci_conn *conn)
{
if (atomic_dec_and_test(&conn->refcnt)) {
+ unsigned long timeo;
if (conn->type == ACL_LINK) {
- unsigned long timeo = (conn->out) ?
- HCI_DISCONN_TIMEOUT : HCI_DISCONN_TIMEOUT * 2;
- hci_conn_set_timer(conn, timeo);
+ timeo = msecs_to_jiffies(HCI_DISCONN_TIMEOUT);
+ if (!conn->out)
+ timeo *= 2;
+ del_timer(&conn->idle_timer);
} else
- hci_conn_set_timer(conn, HZ / 100);
+ timeo = msecs_to_jiffies(10);
+ mod_timer(&conn->disc_timer, jiffies + timeo);
}
}
@@ -411,8 +415,10 @@
#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->class_dev.dev = (pdev))
/* ----- LMP capabilities ----- */
-#define lmp_rswitch_capable(dev) (dev->features[0] & LMP_RSWITCH)
-#define lmp_encrypt_capable(dev) (dev->features[0] & LMP_ENCRYPT)
+#define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
+#define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
+#define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
+#define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
/* ----- HCI protocols ----- */
struct hci_proto {
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 51f8670..729461f 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -48,7 +48,7 @@
#define BT_DBG(D...)
#endif
-#define VERSION "2.8"
+#define VERSION "2.9"
/* Bluetooth sockets */
#define BT_MAX_PROTO 8
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 5c0c2b1..420ed4d 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -115,8 +115,8 @@
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);
@@ -132,11 +132,13 @@
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)
@@ -145,17 +147,27 @@
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);
@@ -178,7 +190,9 @@
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;
@@ -364,6 +378,70 @@
}
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)
{
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index f67240b..3f9f156 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -411,7 +411,7 @@
}
hci_dev_unlock_bh(hdev);
- timeo = ir.length * 2 * HZ;
+ timeo = ir.length * msecs_to_jiffies(2000);
if (do_inquiry && (err = hci_request(hdev, hci_inq_req, (unsigned long)&ir, timeo)) < 0)
goto done;
@@ -479,7 +479,8 @@
set_bit(HCI_INIT, &hdev->flags);
//__hci_request(hdev, hci_reset_req, 0, HZ);
- ret = __hci_request(hdev, hci_init_req, 0, HCI_INIT_TIMEOUT);
+ ret = __hci_request(hdev, hci_init_req, 0,
+ msecs_to_jiffies(HCI_INIT_TIMEOUT));
clear_bit(HCI_INIT, &hdev->flags);
}
@@ -546,7 +547,8 @@
atomic_set(&hdev->cmd_cnt, 1);
if (!test_bit(HCI_RAW, &hdev->flags)) {
set_bit(HCI_INIT, &hdev->flags);
- __hci_request(hdev, hci_reset_req, 0, HZ/4);
+ __hci_request(hdev, hci_reset_req, 0,
+ msecs_to_jiffies(250));
clear_bit(HCI_INIT, &hdev->flags);
}
@@ -619,7 +621,8 @@
hdev->acl_cnt = 0; hdev->sco_cnt = 0;
if (!test_bit(HCI_RAW, &hdev->flags))
- ret = __hci_request(hdev, hci_reset_req, 0, HCI_INIT_TIMEOUT);
+ ret = __hci_request(hdev, hci_reset_req, 0,
+ msecs_to_jiffies(HCI_INIT_TIMEOUT));
done:
tasklet_enable(&hdev->tx_task);
@@ -657,7 +660,8 @@
switch (cmd) {
case HCISETAUTH:
- err = hci_request(hdev, hci_auth_req, dr.dev_opt, HCI_INIT_TIMEOUT);
+ err = hci_request(hdev, hci_auth_req, dr.dev_opt,
+ msecs_to_jiffies(HCI_INIT_TIMEOUT));
break;
case HCISETENCRYPT:
@@ -668,18 +672,19 @@
if (!test_bit(HCI_AUTH, &hdev->flags)) {
/* Auth must be enabled first */
- err = hci_request(hdev, hci_auth_req,
- dr.dev_opt, HCI_INIT_TIMEOUT);
+ err = hci_request(hdev, hci_auth_req, dr.dev_opt,
+ msecs_to_jiffies(HCI_INIT_TIMEOUT));
if (err)
break;
}
- err = hci_request(hdev, hci_encrypt_req,
- dr.dev_opt, HCI_INIT_TIMEOUT);
+ err = hci_request(hdev, hci_encrypt_req, dr.dev_opt,
+ msecs_to_jiffies(HCI_INIT_TIMEOUT));
break;
case HCISETSCAN:
- err = hci_request(hdev, hci_scan_req, dr.dev_opt, HCI_INIT_TIMEOUT);
+ err = hci_request(hdev, hci_scan_req, dr.dev_opt,
+ msecs_to_jiffies(HCI_INIT_TIMEOUT));
break;
case HCISETPTYPE:
@@ -848,6 +853,10 @@
hdev->pkt_type = (HCI_DM1 | HCI_DH1 | HCI_HV1);
hdev->link_mode = (HCI_LM_ACCEPT);
+ hdev->idle_timeout = 0;
+ hdev->sniff_max_interval = 800;
+ hdev->sniff_min_interval = 80;
+
tasklet_init(&hdev->cmd_task, hci_cmd_task,(unsigned long) hdev);
tasklet_init(&hdev->rx_task, hci_rx_task, (unsigned long) hdev);
tasklet_init(&hdev->tx_task, hci_tx_task, (unsigned long) hdev);
@@ -1220,6 +1229,9 @@
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_send_frame(skb);
hdev->acl_last_tx = jiffies;
@@ -1298,6 +1310,8 @@
if (conn) {
register struct hci_proto *hp;
+ hci_conn_enter_active_mode(conn);
+
/* Send to upper protocol */
if ((hp = hci_proto[HCI_PROTO_L2CAP]) && hp->recv_acldata) {
hp->recv_acldata(conn, skb, flags);
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index f41cf1a..3896dab 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -83,6 +83,8 @@
{
struct hci_conn *conn;
struct hci_rp_role_discovery *rd;
+ struct hci_rp_write_link_policy *lp;
+ void *sent;
BT_DBG("%s ocf 0x%x", hdev->name, ocf);
@@ -106,6 +108,27 @@
hci_dev_unlock(hdev);
break;
+ case OCF_WRITE_LINK_POLICY:
+ sent = hci_sent_cmd_data(hdev, OGF_LINK_POLICY, OCF_WRITE_LINK_POLICY);
+ if (!sent)
+ break;
+
+ lp = (struct hci_rp_write_link_policy *) skb->data;
+
+ if (lp->status)
+ break;
+
+ hci_dev_lock(hdev);
+
+ conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(lp->handle));
+ if (conn) {
+ __le16 policy = get_unaligned((__le16 *) (sent + 2));
+ conn->link_policy = __le16_to_cpu(policy);
+ }
+
+ hci_dev_unlock(hdev);
+ break;
+
default:
BT_DBG("%s: Command complete: ogf LINK_POLICY ocf %x",
hdev->name, ocf);
@@ -274,7 +297,7 @@
/* Command Complete OGF INFO_PARAM */
static void hci_cc_info_param(struct hci_dev *hdev, __u16 ocf, struct sk_buff *skb)
{
- struct hci_rp_read_loc_features *lf;
+ struct hci_rp_read_local_features *lf;
struct hci_rp_read_buffer_size *bs;
struct hci_rp_read_bd_addr *ba;
@@ -282,7 +305,7 @@
switch (ocf) {
case OCF_READ_LOCAL_FEATURES:
- lf = (struct hci_rp_read_loc_features *) skb->data;
+ lf = (struct hci_rp_read_local_features *) skb->data;
if (lf->status) {
BT_DBG("%s READ_LOCAL_FEATURES failed %d", hdev->name, lf->status);
@@ -447,8 +470,46 @@
BT_DBG("%s ocf 0x%x", hdev->name, ocf);
switch (ocf) {
+ case OCF_SNIFF_MODE:
+ if (status) {
+ struct hci_conn *conn;
+ struct hci_cp_sniff_mode *cp = hci_sent_cmd_data(hdev, OGF_LINK_POLICY, OCF_SNIFF_MODE);
+
+ if (!cp)
+ break;
+
+ hci_dev_lock(hdev);
+
+ conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
+ if (conn) {
+ clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend);
+ }
+
+ hci_dev_unlock(hdev);
+ }
+ break;
+
+ case OCF_EXIT_SNIFF_MODE:
+ if (status) {
+ struct hci_conn *conn;
+ struct hci_cp_exit_sniff_mode *cp = hci_sent_cmd_data(hdev, OGF_LINK_POLICY, OCF_EXIT_SNIFF_MODE);
+
+ if (!cp)
+ break;
+
+ hci_dev_lock(hdev);
+
+ conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
+ if (conn) {
+ clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend);
+ }
+
+ hci_dev_unlock(hdev);
+ }
+ break;
+
default:
- BT_DBG("%s Command status: ogf HOST_POLICY ocf %x", hdev->name, ocf);
+ BT_DBG("%s Command status: ogf LINK_POLICY ocf %x", hdev->name, ocf);
break;
}
}
@@ -630,14 +691,16 @@
else
cp.role = 0x01; /* Remain slave */
- hci_send_cmd(hdev, OGF_LINK_CTL, OCF_ACCEPT_CONN_REQ, sizeof(cp), &cp);
+ hci_send_cmd(hdev, OGF_LINK_CTL,
+ OCF_ACCEPT_CONN_REQ, sizeof(cp), &cp);
} else {
/* Connection rejected */
struct hci_cp_reject_conn_req cp;
bacpy(&cp.bdaddr, &ev->bdaddr);
cp.reason = 0x0f;
- hci_send_cmd(hdev, OGF_LINK_CTL, OCF_REJECT_CONN_REQ, sizeof(cp), &cp);
+ hci_send_cmd(hdev, OGF_LINK_CTL,
+ OCF_REJECT_CONN_REQ, sizeof(cp), &cp);
}
}
@@ -645,7 +708,7 @@
static inline void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_ev_conn_complete *ev = (struct hci_ev_conn_complete *) skb->data;
- struct hci_conn *conn = NULL;
+ struct hci_conn *conn;
BT_DBG("%s", hdev->name);
@@ -667,12 +730,21 @@
if (test_bit(HCI_ENCRYPT, &hdev->flags))
conn->link_mode |= HCI_LM_ENCRYPT;
+ /* Get remote features */
+ if (conn->type == ACL_LINK) {
+ struct hci_cp_read_remote_features cp;
+ cp.handle = ev->handle;
+ hci_send_cmd(hdev, OGF_LINK_CTL,
+ OCF_READ_REMOTE_FEATURES, sizeof(cp), &cp);
+ }
+
/* Set link policy */
if (conn->type == ACL_LINK && hdev->link_policy) {
struct hci_cp_write_link_policy cp;
cp.handle = ev->handle;
cp.policy = __cpu_to_le16(hdev->link_policy);
- hci_send_cmd(hdev, OGF_LINK_POLICY, OCF_WRITE_LINK_POLICY, sizeof(cp), &cp);
+ hci_send_cmd(hdev, OGF_LINK_POLICY,
+ OCF_WRITE_LINK_POLICY, sizeof(cp), &cp);
}
/* Set packet type for incoming connection */
@@ -683,7 +755,8 @@
__cpu_to_le16(hdev->pkt_type & ACL_PTYPE_MASK):
__cpu_to_le16(hdev->pkt_type & SCO_PTYPE_MASK);
- hci_send_cmd(hdev, OGF_LINK_CTL, OCF_CHANGE_CONN_PTYPE, sizeof(cp), &cp);
+ hci_send_cmd(hdev, OGF_LINK_CTL,
+ OCF_CHANGE_CONN_PTYPE, sizeof(cp), &cp);
}
} else
conn->state = BT_CLOSED;
@@ -711,8 +784,7 @@
static inline void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_ev_disconn_complete *ev = (struct hci_ev_disconn_complete *) skb->data;
- struct hci_conn *conn = NULL;
- __u16 handle = __le16_to_cpu(ev->handle);
+ struct hci_conn *conn;
BT_DBG("%s status %d", hdev->name, ev->status);
@@ -721,7 +793,7 @@
hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, handle);
+ conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
if (conn) {
conn->state = BT_CLOSED;
hci_proto_disconn_ind(conn, ev->reason);
@@ -778,7 +850,7 @@
static inline void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_ev_role_change *ev = (struct hci_ev_role_change *) skb->data;
- struct hci_conn *conn = NULL;
+ struct hci_conn *conn;
BT_DBG("%s status %d", hdev->name, ev->status);
@@ -801,18 +873,43 @@
hci_dev_unlock(hdev);
}
-/* Authentication Complete */
-static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+/* Mode Change */
+static inline void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
{
- struct hci_ev_auth_complete *ev = (struct hci_ev_auth_complete *) skb->data;
- struct hci_conn *conn = NULL;
- __u16 handle = __le16_to_cpu(ev->handle);
+ struct hci_ev_mode_change *ev = (struct hci_ev_mode_change *) skb->data;
+ struct hci_conn *conn;
BT_DBG("%s status %d", hdev->name, ev->status);
hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, handle);
+ conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+ if (conn) {
+ conn->mode = ev->mode;
+ conn->interval = __le16_to_cpu(ev->interval);
+
+ if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) {
+ if (conn->mode == HCI_CM_ACTIVE)
+ conn->power_save = 1;
+ else
+ conn->power_save = 0;
+ }
+ }
+
+ hci_dev_unlock(hdev);
+}
+
+/* Authentication Complete */
+static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct hci_ev_auth_complete *ev = (struct hci_ev_auth_complete *) skb->data;
+ struct hci_conn *conn;
+
+ BT_DBG("%s status %d", hdev->name, ev->status);
+
+ hci_dev_lock(hdev);
+
+ conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
if (conn) {
if (!ev->status)
conn->link_mode |= HCI_LM_AUTH;
@@ -827,8 +924,7 @@
cp.handle = __cpu_to_le16(conn->handle);
cp.encrypt = 1;
hci_send_cmd(conn->hdev, OGF_LINK_CTL,
- OCF_SET_CONN_ENCRYPT,
- sizeof(cp), &cp);
+ OCF_SET_CONN_ENCRYPT, sizeof(cp), &cp);
} else {
clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend);
hci_encrypt_cfm(conn, ev->status, 0x00);
@@ -843,14 +939,13 @@
static inline void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_ev_encrypt_change *ev = (struct hci_ev_encrypt_change *) skb->data;
- struct hci_conn *conn = NULL;
- __u16 handle = __le16_to_cpu(ev->handle);
+ struct hci_conn *conn;
BT_DBG("%s status %d", hdev->name, ev->status);
hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, handle);
+ conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
if (conn) {
if (!ev->status) {
if (ev->encrypt)
@@ -871,14 +966,13 @@
static inline void hci_change_conn_link_key_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_ev_change_conn_link_key_complete *ev = (struct hci_ev_change_conn_link_key_complete *) skb->data;
- struct hci_conn *conn = NULL;
- __u16 handle = __le16_to_cpu(ev->handle);
+ struct hci_conn *conn;
BT_DBG("%s status %d", hdev->name, ev->status);
hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, handle);
+ conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
if (conn) {
if (!ev->status)
conn->link_mode |= HCI_LM_SECURE;
@@ -906,18 +1000,35 @@
{
}
-/* Clock Offset */
-static inline void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
+/* Remote Features */
+static inline void hci_remote_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
{
- struct hci_ev_clock_offset *ev = (struct hci_ev_clock_offset *) skb->data;
- struct hci_conn *conn = NULL;
- __u16 handle = __le16_to_cpu(ev->handle);
+ struct hci_ev_remote_features *ev = (struct hci_ev_remote_features *) skb->data;
+ struct hci_conn *conn;
BT_DBG("%s status %d", hdev->name, ev->status);
hci_dev_lock(hdev);
- conn = hci_conn_hash_lookup_handle(hdev, handle);
+ conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+ if (conn && !ev->status) {
+ memcpy(conn->features, ev->features, sizeof(conn->features));
+ }
+
+ hci_dev_unlock(hdev);
+}
+
+/* Clock Offset */
+static inline void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct hci_ev_clock_offset *ev = (struct hci_ev_clock_offset *) skb->data;
+ struct hci_conn *conn;
+
+ BT_DBG("%s status %d", hdev->name, ev->status);
+
+ hci_dev_lock(hdev);
+
+ conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
if (conn && !ev->status) {
struct inquiry_entry *ie;
@@ -948,6 +1059,23 @@
hci_dev_unlock(hdev);
}
+/* Sniff Subrate */
+static inline void hci_sniff_subrate_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct hci_ev_sniff_subrate *ev = (struct hci_ev_sniff_subrate *) skb->data;
+ struct hci_conn *conn;
+
+ BT_DBG("%s status %d", hdev->name, ev->status);
+
+ hci_dev_lock(hdev);
+
+ conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+ if (conn) {
+ }
+
+ hci_dev_unlock(hdev);
+}
+
void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_event_hdr *hdr = (struct hci_event_hdr *) skb->data;
@@ -996,6 +1124,10 @@
hci_role_change_evt(hdev, skb);
break;
+ case HCI_EV_MODE_CHANGE:
+ hci_mode_change_evt(hdev, skb);
+ break;
+
case HCI_EV_AUTH_COMPLETE:
hci_auth_complete_evt(hdev, skb);
break;
@@ -1020,6 +1152,10 @@
hci_link_key_notify_evt(hdev, skb);
break;
+ case HCI_EV_REMOTE_FEATURES:
+ hci_remote_features_evt(hdev, skb);
+ break;
+
case HCI_EV_CLOCK_OFFSET:
hci_clock_offset_evt(hdev, skb);
break;
@@ -1028,6 +1164,10 @@
hci_pscan_rep_mode_evt(hdev, skb);
break;
+ case HCI_EV_SNIFF_SUBRATE:
+ hci_sniff_subrate_evt(hdev, skb);
+ break;
+
case HCI_EV_CMD_STATUS:
cs = (struct hci_ev_cmd_status *) skb->data;
skb_pull(skb, sizeof(cs));
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 19b234c..89918d2 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -61,18 +61,106 @@
return n;
}
+static ssize_t show_idle_timeout(struct class_device *cdev, char *buf)
+{
+ struct hci_dev *hdev = class_get_devdata(cdev);
+ return sprintf(buf, "%d\n", hdev->idle_timeout);
+}
+
+static ssize_t store_idle_timeout(struct class_device *cdev, const char *buf, size_t count)
+{
+ struct hci_dev *hdev = class_get_devdata(cdev);
+ char *ptr;
+ __u32 val;
+
+ val = simple_strtoul(buf, &ptr, 10);
+ if (ptr == buf)
+ return -EINVAL;
+
+ if (val != 0 && (val < 500 || val > 3600000))
+ return -EINVAL;
+
+ hdev->idle_timeout = val;
+
+ return count;
+}
+
+static ssize_t show_sniff_max_interval(struct class_device *cdev, char *buf)
+{
+ struct hci_dev *hdev = class_get_devdata(cdev);
+ return sprintf(buf, "%d\n", hdev->sniff_max_interval);
+}
+
+static ssize_t store_sniff_max_interval(struct class_device *cdev, const char *buf, size_t count)
+{
+ struct hci_dev *hdev = class_get_devdata(cdev);
+ char *ptr;
+ __u16 val;
+
+ val = simple_strtoul(buf, &ptr, 10);
+ if (ptr == buf)
+ return -EINVAL;
+
+ if (val < 0x0002 || val > 0xFFFE || val % 2)
+ return -EINVAL;
+
+ if (val < hdev->sniff_min_interval)
+ return -EINVAL;
+
+ hdev->sniff_max_interval = val;
+
+ return count;
+}
+
+static ssize_t show_sniff_min_interval(struct class_device *cdev, char *buf)
+{
+ struct hci_dev *hdev = class_get_devdata(cdev);
+ return sprintf(buf, "%d\n", hdev->sniff_min_interval);
+}
+
+static ssize_t store_sniff_min_interval(struct class_device *cdev, const char *buf, size_t count)
+{
+ struct hci_dev *hdev = class_get_devdata(cdev);
+ char *ptr;
+ __u16 val;
+
+ val = simple_strtoul(buf, &ptr, 10);
+ if (ptr == buf)
+ return -EINVAL;
+
+ if (val < 0x0002 || val > 0xFFFE || val % 2)
+ return -EINVAL;
+
+ if (val > hdev->sniff_max_interval)
+ return -EINVAL;
+
+ hdev->sniff_min_interval = val;
+
+ return count;
+}
+
static CLASS_DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
static CLASS_DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
static CLASS_DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
static CLASS_DEVICE_ATTR(flags, S_IRUGO, show_flags, NULL);
static CLASS_DEVICE_ATTR(inquiry_cache, S_IRUGO, show_inquiry_cache, NULL);
+static CLASS_DEVICE_ATTR(idle_timeout, S_IRUGO | S_IWUSR,
+ show_idle_timeout, store_idle_timeout);
+static CLASS_DEVICE_ATTR(sniff_max_interval, S_IRUGO | S_IWUSR,
+ show_sniff_max_interval, store_sniff_max_interval);
+static CLASS_DEVICE_ATTR(sniff_min_interval, S_IRUGO | S_IWUSR,
+ show_sniff_min_interval, store_sniff_min_interval);
+
static struct class_device_attribute *bt_attrs[] = {
&class_device_attr_name,
&class_device_attr_type,
&class_device_attr_address,
&class_device_attr_flags,
&class_device_attr_inquiry_cache,
+ &class_device_attr_idle_timeout,
+ &class_device_attr_sniff_max_interval,
+ &class_device_attr_sniff_min_interval,
NULL
};