-/*
+/*
BlueZ - Bluetooth protocol stack for Linux
Copyright (C) 2000-2001 Qualcomm Incorporated
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
- CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
- COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+ ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+ COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
SOFTWARE IS DISCLAIMED.
*/
/* Bluetooth HCI core. */
+#include <linux/jiffies.h>
#include <linux/module.h>
#include <linux/kmod.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
-#ifndef CONFIG_BT_HCI_CORE_DEBUG
-#undef BT_DBG
-#define BT_DBG(D...)
-#endif
-
static void hci_cmd_task(unsigned long arg);
static void hci_rx_task(unsigned long arg);
static void hci_tx_task(unsigned long arg);
}
/* Execute request and wait for completion. */
-static int __hci_request(struct hci_dev *hdev, void (*req)(struct hci_dev *hdev, unsigned long opt),
+static int __hci_request(struct hci_dev *hdev, void (*req)(struct hci_dev *hdev, unsigned long opt),
unsigned long opt, __u32 timeout)
{
DECLARE_WAITQUEUE(wait, current);
default:
err = -ETIMEDOUT;
break;
- };
+ }
hdev->req_status = hdev->req_result = 0;
{
int ret;
+ if (!test_bit(HCI_UP, &hdev->flags))
+ return -ENETDOWN;
+
/* Serialize all requests */
hci_req_lock(hdev);
ret = __hci_request(hdev, req, opt, timeout);
BT_DBG("%s %ld", hdev->name, opt);
/* Reset device */
- hci_send_cmd(hdev, OGF_HOST_CTL, OCF_RESET, 0, NULL);
+ hci_send_cmd(hdev, HCI_OP_RESET, 0, NULL);
}
static void hci_init_req(struct hci_dev *hdev, unsigned long opt)
{
struct sk_buff *skb;
__le16 param;
+ __u8 flt_type;
BT_DBG("%s %ld", hdev->name, opt);
/* Mandatory initialization */
/* Reset */
- if (test_bit(HCI_QUIRK_RESET_ON_INIT, &hdev->quirks))
- hci_send_cmd(hdev, OGF_HOST_CTL, OCF_RESET, 0, NULL);
+ if (!test_bit(HCI_QUIRK_NO_RESET, &hdev->quirks))
+ hci_send_cmd(hdev, HCI_OP_RESET, 0, NULL);
/* Read Local Supported Features */
- hci_send_cmd(hdev, OGF_INFO_PARAM, OCF_READ_LOCAL_FEATURES, 0, NULL);
+ hci_send_cmd(hdev, HCI_OP_READ_LOCAL_FEATURES, 0, NULL);
+
+ /* Read Local Version */
+ hci_send_cmd(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL);
/* Read Buffer Size (ACL mtu, max pkt, etc.) */
- hci_send_cmd(hdev, OGF_INFO_PARAM, OCF_READ_BUFFER_SIZE, 0, NULL);
+ hci_send_cmd(hdev, HCI_OP_READ_BUFFER_SIZE, 0, NULL);
#if 0
/* Host buffer size */
{
struct hci_cp_host_buffer_size cp;
- cp.acl_mtu = __cpu_to_le16(HCI_MAX_ACL_SIZE);
+ cp.acl_mtu = cpu_to_le16(HCI_MAX_ACL_SIZE);
cp.sco_mtu = HCI_MAX_SCO_SIZE;
- cp.acl_max_pkt = __cpu_to_le16(0xffff);
- cp.sco_max_pkt = __cpu_to_le16(0xffff);
- hci_send_cmd(hdev, OGF_HOST_CTL, OCF_HOST_BUFFER_SIZE, sizeof(cp), &cp);
+ cp.acl_max_pkt = cpu_to_le16(0xffff);
+ cp.sco_max_pkt = cpu_to_le16(0xffff);
+ hci_send_cmd(hdev, HCI_OP_HOST_BUFFER_SIZE, sizeof(cp), &cp);
}
#endif
/* Read BD Address */
- hci_send_cmd(hdev, OGF_INFO_PARAM, OCF_READ_BD_ADDR, 0, NULL);
+ hci_send_cmd(hdev, HCI_OP_READ_BD_ADDR, 0, NULL);
+
+ /* Read Class of Device */
+ hci_send_cmd(hdev, HCI_OP_READ_CLASS_OF_DEV, 0, NULL);
+
+ /* Read Local Name */
+ hci_send_cmd(hdev, HCI_OP_READ_LOCAL_NAME, 0, NULL);
/* Read Voice Setting */
- hci_send_cmd(hdev, OGF_HOST_CTL, OCF_READ_VOICE_SETTING, 0, NULL);
+ hci_send_cmd(hdev, HCI_OP_READ_VOICE_SETTING, 0, NULL);
/* Optional initialization */
/* Clear Event Filters */
- {
- struct hci_cp_set_event_flt cp;
- cp.flt_type = HCI_FLT_CLEAR_ALL;
- hci_send_cmd(hdev, OGF_HOST_CTL, OCF_SET_EVENT_FLT, sizeof(cp), &cp);
- }
+ 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, OGF_HOST_CTL, OCF_WRITE_PG_TIMEOUT, 2, ¶m);
+ 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, OGF_HOST_CTL, OCF_WRITE_CA_TIMEOUT, 2, ¶m);
+ param = cpu_to_le16(0x7d00);
+ hci_send_cmd(hdev, HCI_OP_WRITE_CA_TIMEOUT, 2, ¶m);
}
static void hci_scan_req(struct hci_dev *hdev, unsigned long opt)
BT_DBG("%s %x", hdev->name, scan);
/* Inquiry and Page scans */
- hci_send_cmd(hdev, OGF_HOST_CTL, OCF_WRITE_SCAN_ENABLE, 1, &scan);
+ hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
}
static void hci_auth_req(struct hci_dev *hdev, unsigned long opt)
BT_DBG("%s %x", hdev->name, auth);
/* Authentication */
- hci_send_cmd(hdev, OGF_HOST_CTL, OCF_WRITE_AUTH_ENABLE, 1, &auth);
+ hci_send_cmd(hdev, HCI_OP_WRITE_AUTH_ENABLE, 1, &auth);
}
static void hci_encrypt_req(struct hci_dev *hdev, unsigned long opt)
BT_DBG("%s %x", hdev->name, encrypt);
- /* Authentication */
- hci_send_cmd(hdev, OGF_HOST_CTL, OCF_WRITE_ENCRYPT_MODE, 1, &encrypt);
+ /* Encryption */
+ hci_send_cmd(hdev, HCI_OP_WRITE_ENCRYPT_MODE, 1, &encrypt);
+}
+
+static void hci_linkpol_req(struct hci_dev *hdev, unsigned long opt)
+{
+ __le16 policy = cpu_to_le16(opt);
+
+ BT_DBG("%s %x", hdev->name, policy);
+
+ /* Default link policy */
+ hci_send_cmd(hdev, HCI_OP_WRITE_DEF_LINK_POLICY, 2, &policy);
}
-/* Get HCI device by index.
+/* Get HCI device by index.
* Device is held on return. */
struct hci_dev *hci_dev_get(int index)
{
if (!(e = hci_inquiry_cache_lookup(hdev, &data->bdaddr))) {
/* Entry not in the cache. Add new one. */
- if (!(e = kmalloc(sizeof(struct inquiry_entry), GFP_ATOMIC)))
+ if (!(e = kzalloc(sizeof(struct inquiry_entry), GFP_ATOMIC)))
return;
- memset(e, 0, sizeof(struct inquiry_entry));
e->next = cache->list;
cache->list = e;
}
memcpy(&cp.lap, &ir->lap, 3);
cp.length = ir->length;
cp.num_rsp = ir->num_rsp;
- hci_send_cmd(hdev, OGF_LINK_CTL, OCF_INQUIRY, sizeof(cp), &cp);
+ hci_send_cmd(hdev, HCI_OP_INQUIRY, sizeof(cp), &cp);
}
int hci_inquiry(void __user *arg)
return -ENODEV;
hci_dev_lock_bh(hdev);
- if (inquiry_cache_age(hdev) > INQUIRY_CACHE_AGE_MAX ||
+ if (inquiry_cache_age(hdev) > INQUIRY_CACHE_AGE_MAX ||
inquiry_cache_empty(hdev) ||
ir.flags & IREQ_CACHE_FLUSH) {
inquiry_cache_flush(hdev);
if (copy_to_user(ptr, buf, sizeof(struct inquiry_info) *
ir.num_rsp))
err = -EFAULT;
- } else
+ } else
err = -EFAULT;
kfree(buf);
hci_dev_hold(hdev);
set_bit(HCI_UP, &hdev->flags);
hci_notify(hdev, HCI_DEV_UP);
- } else {
+ } else {
/* Init failed, cleanup */
tasklet_kill(&hdev->rx_task);
tasklet_kill(&hdev->tx_task);
if (hdev->flush)
hdev->flush(hdev);
- atomic_set(&hdev->cmd_cnt, 1);
+ atomic_set(&hdev->cmd_cnt, 1);
hdev->acl_cnt = 0; hdev->sco_cnt = 0;
if (!test_bit(HCI_RAW, &hdev->flags))
msecs_to_jiffies(HCI_INIT_TIMEOUT));
break;
- case HCISETPTYPE:
- hdev->pkt_type = (__u16) dr.dev_opt;
- break;
-
case HCISETLINKPOL:
- hdev->link_policy = (__u16) dr.dev_opt;
+ err = hci_request(hdev, hci_linkpol_req, dr.dev_opt,
+ msecs_to_jiffies(HCI_INIT_TIMEOUT));
break;
case HCISETLINKMODE:
- hdev->link_mode = ((__u16) dr.dev_opt) & (HCI_LM_MASTER | HCI_LM_ACCEPT);
+ hdev->link_mode = ((__u16) dr.dev_opt) &
+ (HCI_LM_MASTER | HCI_LM_ACCEPT);
+ break;
+
+ case HCISETPTYPE:
+ hdev->pkt_type = (__u16) dr.dev_opt;
break;
case HCISETACLMTU:
- hdev->acl_mtu = *((__u16 *)&dr.dev_opt + 1);
- hdev->acl_pkts = *((__u16 *)&dr.dev_opt + 0);
+ hdev->acl_mtu = *((__u16 *) &dr.dev_opt + 1);
+ hdev->acl_pkts = *((__u16 *) &dr.dev_opt + 0);
break;
case HCISETSCOMTU:
- hdev->sco_mtu = *((__u16 *)&dr.dev_opt + 1);
- hdev->sco_pkts = *((__u16 *)&dr.dev_opt + 0);
+ hdev->sco_mtu = *((__u16 *) &dr.dev_opt + 1);
+ hdev->sco_pkts = *((__u16 *) &dr.dev_opt + 0);
break;
default:
err = -EINVAL;
break;
}
+
hci_dev_put(hdev);
return err;
}
size = sizeof(*dl) + dev_num * sizeof(*dr);
- if (!(dl = kmalloc(size, GFP_KERNEL)))
+ if (!(dl = kzalloc(size, GFP_KERNEL)))
return -ENOMEM;
dr = dl->dev_req;
{
struct hci_dev *hdev;
- hdev = kmalloc(sizeof(struct hci_dev), GFP_KERNEL);
+ hdev = kzalloc(sizeof(struct hci_dev), GFP_KERNEL);
if (!hdev)
return NULL;
- memset(hdev, 0, sizeof(struct hci_dev));
-
skb_queue_head_init(&hdev->driver_init);
return hdev;
int hci_register_dev(struct hci_dev *hdev)
{
struct list_head *head = &hci_dev_list, *p;
- int id = 0;
+ int i, id = 0;
BT_DBG("%p name %s type %d owner %p", hdev, hdev->name, hdev->type, hdev->owner);
break;
head = p; id++;
}
-
+
sprintf(hdev->name, "hci%d", id);
hdev->id = id;
list_add(&hdev->list, head);
hdev->flags = 0;
hdev->pkt_type = (HCI_DM1 | HCI_DH1 | HCI_HV1);
+ hdev->esco_type = (ESCO_HV1);
hdev->link_mode = (HCI_LM_ACCEPT);
hdev->idle_timeout = 0;
skb_queue_head_init(&hdev->cmd_q);
skb_queue_head_init(&hdev->raw_q);
+ for (i = 0; i < 3; i++)
+ hdev->reassembly[i] = NULL;
+
init_waitqueue_head(&hdev->req_wait_q);
init_MUTEX(&hdev->req_lock);
/* Unregister HCI device */
int hci_unregister_dev(struct hci_dev *hdev)
{
- BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
+ int i;
- hci_unregister_sysfs(hdev);
+ BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
write_lock_bh(&hci_dev_list_lock);
list_del(&hdev->list);
hci_dev_do_close(hdev);
+ for (i = 0; i < 3; i++)
+ kfree_skb(hdev->reassembly[i]);
+
hci_notify(hdev, HCI_DEV_UNREG);
+ hci_unregister_sysfs(hdev);
+
__hci_dev_put(hdev);
+
return 0;
}
EXPORT_SYMBOL(hci_unregister_dev);
}
EXPORT_SYMBOL(hci_resume_dev);
+/* Receive packet type fragment */
+#define __reassembly(hdev, type) ((hdev)->reassembly[(type) - 2])
+
+int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count)
+{
+ if (type < HCI_ACLDATA_PKT || type > HCI_EVENT_PKT)
+ return -EILSEQ;
+
+ while (count) {
+ struct sk_buff *skb = __reassembly(hdev, type);
+ struct { int expect; } *scb;
+ int len = 0;
+
+ if (!skb) {
+ /* Start of the frame */
+
+ switch (type) {
+ case HCI_EVENT_PKT:
+ if (count >= HCI_EVENT_HDR_SIZE) {
+ struct hci_event_hdr *h = data;
+ len = HCI_EVENT_HDR_SIZE + h->plen;
+ } else
+ return -EILSEQ;
+ break;
+
+ case HCI_ACLDATA_PKT:
+ if (count >= HCI_ACL_HDR_SIZE) {
+ struct hci_acl_hdr *h = data;
+ len = HCI_ACL_HDR_SIZE + __le16_to_cpu(h->dlen);
+ } else
+ return -EILSEQ;
+ break;
+
+ case HCI_SCODATA_PKT:
+ if (count >= HCI_SCO_HDR_SIZE) {
+ struct hci_sco_hdr *h = data;
+ len = HCI_SCO_HDR_SIZE + h->dlen;
+ } else
+ return -EILSEQ;
+ break;
+ }
+
+ skb = bt_skb_alloc(len, GFP_ATOMIC);
+ if (!skb) {
+ BT_ERR("%s no memory for packet", hdev->name);
+ return -ENOMEM;
+ }
+
+ skb->dev = (void *) hdev;
+ bt_cb(skb)->pkt_type = type;
+
+ __reassembly(hdev, type) = skb;
+
+ scb = (void *) skb->cb;
+ scb->expect = len;
+ } else {
+ /* Continuation */
+
+ scb = (void *) skb->cb;
+ len = scb->expect;
+ }
+
+ len = min(len, count);
+
+ memcpy(skb_put(skb, len), data, len);
+
+ scb->expect -= len;
+
+ if (scb->expect == 0) {
+ /* Complete frame */
+
+ __reassembly(hdev, type) = NULL;
+
+ bt_cb(skb)->pkt_type = type;
+ hci_recv_frame(skb);
+ }
+
+ count -= len; data += len;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(hci_recv_fragment);
+
/* ---- Interface to upper protocols ---- */
/* Register/Unregister protocols.
}
/* Send HCI command */
-int hci_send_cmd(struct hci_dev *hdev, __u16 ogf, __u16 ocf, __u32 plen, void *param)
+int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param)
{
int len = HCI_COMMAND_HDR_SIZE + plen;
struct hci_command_hdr *hdr;
struct sk_buff *skb;
- BT_DBG("%s ogf 0x%x ocf 0x%x plen %d", hdev->name, ogf, ocf, plen);
+ BT_DBG("%s opcode 0x%x plen %d", hdev->name, opcode, plen);
skb = bt_skb_alloc(len, GFP_ATOMIC);
if (!skb) {
- BT_ERR("%s Can't allocate memory for HCI command", hdev->name);
+ BT_ERR("%s no memory for command", hdev->name);
return -ENOMEM;
}
hdr = (struct hci_command_hdr *) skb_put(skb, HCI_COMMAND_HDR_SIZE);
- hdr->opcode = __cpu_to_le16(hci_opcode_pack(ogf, ocf));
+ hdr->opcode = cpu_to_le16(opcode);
hdr->plen = plen;
if (plen)
}
/* Get data from the previously sent command */
-void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 ogf, __u16 ocf)
+void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode)
{
struct hci_command_hdr *hdr;
hdr = (void *) hdev->sent_cmd->data;
- if (hdr->opcode != __cpu_to_le16(hci_opcode_pack(ogf, ocf)))
+ if (hdr->opcode != cpu_to_le16(opcode))
return NULL;
- BT_DBG("%s ogf 0x%x ocf 0x%x", hdev->name, ogf, ocf);
+ BT_DBG("%s opcode 0x%x", hdev->name, opcode);
return hdev->sent_cmd->data + HCI_COMMAND_HDR_SIZE;
}
struct hci_acl_hdr *hdr;
int len = skb->len;
- hdr = (struct hci_acl_hdr *) skb_push(skb, HCI_ACL_HDR_SIZE);
- hdr->handle = __cpu_to_le16(hci_handle_pack(handle, flags));
- hdr->dlen = __cpu_to_le16(len);
-
- skb->h.raw = (void *) hdr;
+ skb_push(skb, HCI_ACL_HDR_SIZE);
+ skb_reset_transport_header(skb);
+ hdr = (struct hci_acl_hdr *)skb_transport_header(skb);
+ hdr->handle = cpu_to_le16(hci_handle_pack(handle, flags));
+ hdr->dlen = cpu_to_le16(len);
}
int hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags)
__skb_queue_tail(&conn->data_q, skb);
do {
skb = list; list = list->next;
-
+
skb->dev = (void *) hdev;
bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
hci_add_acl_hdr(skb, conn->handle, flags | ACL_CONT);
return -EINVAL;
}
- hdr.handle = __cpu_to_le16(conn->handle);
+ hdr.handle = cpu_to_le16(conn->handle);
hdr.dlen = skb->len;
- skb->h.raw = skb_push(skb, HCI_SCO_HDR_SIZE);
- memcpy(skb->h.raw, &hdr, HCI_SCO_HDR_SIZE);
+ skb_push(skb, HCI_SCO_HDR_SIZE);
+ skb_reset_transport_header(skb);
+ memcpy(skb_transport_header(skb), &hdr, HCI_SCO_HDR_SIZE);
skb->dev = (void *) hdev;
bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
static inline struct hci_conn *hci_low_sent(struct hci_dev *hdev, __u8 type, int *quote)
{
struct hci_conn_hash *h = &hdev->conn_hash;
- struct hci_conn *conn = NULL;
+ struct hci_conn *conn = NULL;
int num = 0, min = ~0;
struct list_head *p;
- /* We don't have to lock device here. Connections are always
+ /* We don't have to lock device here. Connections are always
* added and removed with TX task disabled. */
list_for_each(p, &h->list) {
struct hci_conn *c;
c = list_entry(p, struct hci_conn, list);
- if (c->type != type || c->state != BT_CONNECTED
- || skb_queue_empty(&c->data_q))
+ if (c->type != type || skb_queue_empty(&c->data_q))
continue;
+
+ if (c->state != BT_CONNECTED && c->state != BT_CONFIG)
+ continue;
+
num++;
if (c->sent < min) {
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 && (jiffies - hdev->acl_last_tx) > (HZ * 45))
+ if (!hdev->acl_cnt && time_after(jiffies, hdev->acl_last_tx + HZ * 45))
hci_acl_tx_to(hdev);
}
}
}
+static inline void hci_sched_esco(struct hci_dev *hdev)
+{
+ struct hci_conn *conn;
+ struct sk_buff *skb;
+ int quote;
+
+ BT_DBG("%s", hdev->name);
+
+ 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);
+ hci_send_frame(skb);
+
+ conn->sent++;
+ if (conn->sent == ~0)
+ conn->sent = 0;
+ }
+ }
+}
+
static void hci_tx_task(unsigned long arg)
{
struct hci_dev *hdev = (struct hci_dev *) arg;
hci_sched_sco(hdev);
+ hci_sched_esco(hdev);
+
/* Send next queued raw (unknown type) packet */
while ((skb = skb_dequeue(&hdev->raw_q)))
hci_send_frame(skb);
hci_dev_lock(hdev);
conn = hci_conn_hash_lookup_handle(hdev, handle);
hci_dev_unlock(hdev);
-
+
if (conn) {
register struct hci_proto *hp;
return;
}
} else {
- BT_ERR("%s ACL packet for unknown connection handle %d",
+ BT_ERR("%s ACL packet for unknown connection handle %d",
hdev->name, handle);
}
return;
}
} else {
- BT_ERR("%s SCO packet for unknown connection handle %d",
+ BT_ERR("%s SCO packet for unknown connection handle %d",
hdev->name, handle);
}
case HCI_SCODATA_PKT:
kfree_skb(skb);
continue;
- };
+ }
}
/* Process frame */
BT_DBG("%s cmd %d", hdev->name, atomic_read(&hdev->cmd_cnt));
- if (!atomic_read(&hdev->cmd_cnt) && (jiffies - hdev->cmd_last_tx) > HZ) {
+ 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);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff