/* Bluetooth HCI core. */
-#include <linux/jiffies.h>
-#include <linux/module.h>
-#include <linux/kmod.h>
-
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/poll.h>
-#include <linux/fcntl.h>
-#include <linux/init.h>
-#include <linux/skbuff.h>
-#include <linux/workqueue.h>
-#include <linux/interrupt.h>
-#include <linux/rfkill.h>
-#include <linux/timer.h>
-#include <linux/crypto.h>
-#include <net/sock.h>
+#include <linux/export.h>
+#include <linux/idr.h>
-#include <linux/uaccess.h>
-#include <asm/unaligned.h>
+#include <linux/rfkill.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
LIST_HEAD(hci_cb_list);
DEFINE_RWLOCK(hci_cb_list_lock);
+/* HCI ID Numbering */
+static DEFINE_IDA(hci_index_ida);
+
/* ---- HCI notifications ---- */
static void hci_notify(struct hci_dev *hdev, int event)
}
/* 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)
+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);
int err = 0;
return err;
}
-static inline int hci_request(struct hci_dev *hdev, void (*req)(struct hci_dev *hdev, unsigned long opt),
- unsigned long opt, __u32 timeout)
+static int hci_request(struct hci_dev *hdev,
+ void (*req)(struct hci_dev *hdev, unsigned long opt),
+ unsigned long opt, __u32 timeout)
{
int ret;
/* Mandatory initialization */
/* Reset */
- if (!test_bit(HCI_QUIRK_NO_RESET, &hdev->quirks)) {
+ if (!test_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks)) {
set_bit(HCI_RESET, &hdev->flags);
hci_send_cmd(hdev, HCI_OP_RESET, 0, NULL);
}
hci_send_cmd(hdev, HCI_OP_SET_EVENT_FLT, 1, &flt_type);
/* Connection accept timeout ~20 secs */
- param = cpu_to_le16(0x7d00);
+ param = __constant_cpu_to_le16(0x7d00);
hci_send_cmd(hdev, HCI_OP_WRITE_CA_TIMEOUT, 2, ¶m);
bacpy(&cp.bdaddr, BDADDR_ANY);
INIT_LIST_HEAD(&cache->resolve);
}
-struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr)
+struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
+ bdaddr_t *bdaddr)
{
struct discovery_state *cache = &hdev->discovery;
struct inquiry_entry *e;
list_for_each_entry(p, &cache->resolve, list) {
if (p->name_state != NAME_PENDING &&
- abs(p->data.rssi) >= abs(ie->data.rssi))
+ abs(p->data.rssi) >= abs(ie->data.rssi))
break;
pos = &p->list;
}
*ssp = true;
if (ie->name_state == NAME_NEEDED &&
- data->rssi != ie->data.rssi) {
+ data->rssi != ie->data.rssi) {
ie->data.rssi = data->rssi;
hci_inquiry_cache_update_resolve(hdev, ie);
}
update:
if (name_known && ie->name_state != NAME_KNOWN &&
- ie->name_state != NAME_PENDING) {
+ ie->name_state != NAME_PENDING) {
ie->name_state = NAME_KNOWN;
list_del(&ie->list);
}
hci_dev_lock(hdev);
if (inquiry_cache_age(hdev) > INQUIRY_CACHE_AGE_MAX ||
- inquiry_cache_empty(hdev) ||
- ir.flags & IREQ_CACHE_FLUSH) {
+ inquiry_cache_empty(hdev) || ir.flags & IREQ_CACHE_FLUSH) {
inquiry_cache_flush(hdev);
do_inquiry = 1;
}
goto done;
}
- /* for unlimited number of responses we will use buffer with 255 entries */
+ /* for unlimited number of responses we will use buffer with
+ * 255 entries
+ */
max_rsp = (ir.num_rsp == 0) ? 255 : ir.num_rsp;
/* cache_dump can't sleep. Therefore we allocate temp buffer and then
if (!copy_to_user(ptr, &ir, sizeof(ir))) {
ptr += sizeof(ir);
if (copy_to_user(ptr, buf, sizeof(struct inquiry_info) *
- ir.num_rsp))
+ ir.num_rsp))
err = -EFAULT;
} else
err = -EFAULT;
hdev->init_last_cmd = 0;
ret = __hci_request(hdev, hci_init_req, 0,
- msecs_to_jiffies(HCI_INIT_TIMEOUT));
+ 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));
+ msecs_to_jiffies(HCI_INIT_TIMEOUT));
clear_bit(HCI_INIT, &hdev->flags);
}
skb_queue_purge(&hdev->cmd_q);
atomic_set(&hdev->cmd_cnt, 1);
if (!test_bit(HCI_RAW, &hdev->flags) &&
- test_bit(HCI_QUIRK_NO_RESET, &hdev->quirks)) {
+ test_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks)) {
set_bit(HCI_INIT, &hdev->flags);
__hci_request(hdev, hci_reset_req, 0,
- msecs_to_jiffies(250));
+ msecs_to_jiffies(250));
clear_bit(HCI_INIT, &hdev->flags);
}
if (!test_bit(HCI_RAW, &hdev->flags))
ret = __hci_request(hdev, hci_reset_req, 0,
- msecs_to_jiffies(HCI_INIT_TIMEOUT));
+ msecs_to_jiffies(HCI_INIT_TIMEOUT));
done:
hci_req_unlock(hdev);
switch (cmd) {
case HCISETAUTH:
err = hci_request(hdev, hci_auth_req, dr.dev_opt,
- msecs_to_jiffies(HCI_INIT_TIMEOUT));
+ msecs_to_jiffies(HCI_INIT_TIMEOUT));
break;
case HCISETENCRYPT:
if (!test_bit(HCI_AUTH, &hdev->flags)) {
/* Auth must be enabled first */
err = hci_request(hdev, hci_auth_req, dr.dev_opt,
- msecs_to_jiffies(HCI_INIT_TIMEOUT));
+ msecs_to_jiffies(HCI_INIT_TIMEOUT));
if (err)
break;
}
err = hci_request(hdev, hci_encrypt_req, dr.dev_opt,
- msecs_to_jiffies(HCI_INIT_TIMEOUT));
+ msecs_to_jiffies(HCI_INIT_TIMEOUT));
break;
case HCISETSCAN:
err = hci_request(hdev, hci_scan_req, dr.dev_opt,
- msecs_to_jiffies(HCI_INIT_TIMEOUT));
+ msecs_to_jiffies(HCI_INIT_TIMEOUT));
break;
case HCISETLINKPOL:
err = hci_request(hdev, hci_linkpol_req, dr.dev_opt,
- msecs_to_jiffies(HCI_INIT_TIMEOUT));
+ msecs_to_jiffies(HCI_INIT_TIMEOUT));
break;
case HCISETLINKMODE:
if (test_bit(HCI_AUTO_OFF, &hdev->dev_flags))
schedule_delayed_work(&hdev->power_off,
- msecs_to_jiffies(AUTO_OFF_TIMEOUT));
+ msecs_to_jiffies(AUTO_OFF_TIMEOUT));
if (test_and_clear_bit(HCI_SETUP, &hdev->dev_flags))
mgmt_index_added(hdev);
static void hci_power_off(struct work_struct *work)
{
struct hci_dev *hdev = container_of(work, struct hci_dev,
- power_off.work);
+ power_off.work);
BT_DBG("%s", hdev->name);
}
static bool hci_persistent_key(struct hci_dev *hdev, struct hci_conn *conn,
- u8 key_type, u8 old_key_type)
+ u8 key_type, u8 old_key_type)
{
/* Legacy key */
if (key_type < 0x03)
list_for_each_entry(k, &hdev->long_term_keys, list) {
if (k->ediv != ediv ||
- memcmp(rand, k->rand, sizeof(k->rand)))
+ memcmp(rand, k->rand, sizeof(k->rand)))
continue;
return k;
return NULL;
}
-EXPORT_SYMBOL(hci_find_ltk);
struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
u8 addr_type)
list_for_each_entry(k, &hdev->long_term_keys, list)
if (addr_type == k->bdaddr_type &&
- bacmp(bdaddr, &k->bdaddr) == 0)
+ bacmp(bdaddr, &k->bdaddr) == 0)
return k;
return NULL;
}
-EXPORT_SYMBOL(hci_find_ltk_by_addr);
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)
* 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) {
+ (!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);
+ memcpy(key->val, val, HCI_LINK_KEY_SIZE);
key->pin_len = pin_len;
if (type == HCI_LK_CHANGED_COMBINATION)
/* Register HCI device */
int hci_register_dev(struct hci_dev *hdev)
{
- struct list_head *head, *p;
int id, error;
if (!hdev->open || !hdev->close)
return -EINVAL;
- write_lock(&hci_dev_list_lock);
-
/* Do not allow HCI_AMP devices to register at index 0,
* so the index can be used as the AMP controller ID.
*/
- id = (hdev->dev_type == HCI_BREDR) ? 0 : 1;
- head = &hci_dev_list;
-
- /* Find first available device id */
- list_for_each(p, &hci_dev_list) {
- int nid = list_entry(p, struct hci_dev, list)->id;
- if (nid > id)
- break;
- if (nid == id)
- id++;
- head = p;
+ switch (hdev->dev_type) {
+ case HCI_BREDR:
+ id = ida_simple_get(&hci_index_ida, 0, 0, GFP_KERNEL);
+ break;
+ case HCI_AMP:
+ id = ida_simple_get(&hci_index_ida, 1, 0, GFP_KERNEL);
+ break;
+ default:
+ return -EINVAL;
}
+ if (id < 0)
+ return id;
+
sprintf(hdev->name, "hci%d", id);
hdev->id = id;
BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
- list_add(&hdev->list, head);
-
+ write_lock(&hci_dev_list_lock);
+ list_add(&hdev->list, &hci_dev_list);
write_unlock(&hci_dev_list_lock);
hdev->workqueue = alloc_workqueue(hdev->name, WQ_HIGHPRI | WQ_UNBOUND |
- WQ_MEM_RECLAIM, 1);
+ WQ_MEM_RECLAIM, 1);
if (!hdev->workqueue) {
error = -ENOMEM;
goto err;
goto err_wqueue;
hdev->rfkill = rfkill_alloc(hdev->name, &hdev->dev,
- RFKILL_TYPE_BLUETOOTH, &hci_rfkill_ops, hdev);
+ RFKILL_TYPE_BLUETOOTH, &hci_rfkill_ops,
+ hdev);
if (hdev->rfkill) {
if (rfkill_register(hdev->rfkill) < 0) {
rfkill_destroy(hdev->rfkill);
err_wqueue:
destroy_workqueue(hdev->workqueue);
err:
+ ida_simple_remove(&hci_index_ida, hdev->id);
write_lock(&hci_dev_list_lock);
list_del(&hdev->list);
write_unlock(&hci_dev_list_lock);
/* Unregister HCI device */
void hci_unregister_dev(struct hci_dev *hdev)
{
- int i;
+ int i, id;
BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
set_bit(HCI_UNREGISTER, &hdev->dev_flags);
+ id = hdev->id;
+
write_lock(&hci_dev_list_lock);
list_del(&hdev->list);
write_unlock(&hci_dev_list_lock);
kfree_skb(hdev->reassembly[i]);
if (!test_bit(HCI_INIT, &hdev->flags) &&
- !test_bit(HCI_SETUP, &hdev->dev_flags)) {
+ !test_bit(HCI_SETUP, &hdev->dev_flags)) {
hci_dev_lock(hdev);
mgmt_index_removed(hdev);
hci_dev_unlock(hdev);
hci_dev_unlock(hdev);
hci_dev_put(hdev);
+
+ ida_simple_remove(&hci_index_ida, id);
}
EXPORT_SYMBOL(hci_unregister_dev);
{
struct hci_dev *hdev = (struct hci_dev *) skb->dev;
if (!hdev || (!test_bit(HCI_UP, &hdev->flags)
- && !test_bit(HCI_INIT, &hdev->flags))) {
+ && !test_bit(HCI_INIT, &hdev->flags))) {
kfree_skb(skb);
return -ENXIO;
}
EXPORT_SYMBOL(hci_recv_frame);
static int hci_reassembly(struct hci_dev *hdev, int type, void *data,
- int count, __u8 index)
+ int count, __u8 index)
{
int len = 0;
int hlen = 0;
struct bt_skb_cb *scb;
if ((type < HCI_ACLDATA_PKT || type > HCI_EVENT_PKT) ||
- index >= NUM_REASSEMBLY)
+ index >= NUM_REASSEMBLY)
return -EILSEQ;
skb = hdev->reassembly[index];
type = bt_cb(skb)->pkt_type;
rem = hci_reassembly(hdev, type, data, count,
- STREAM_REASSEMBLY);
+ STREAM_REASSEMBLY);
if (rem < 0)
return rem;
}
static void hci_queue_acl(struct hci_conn *conn, struct sk_buff_head *queue,
- struct sk_buff *skb, __u16 flags)
+ struct sk_buff *skb, __u16 flags)
{
struct hci_dev *hdev = conn->hdev;
struct sk_buff *list;
queue_work(hdev->workqueue, &hdev->tx_work);
}
-EXPORT_SYMBOL(hci_send_acl);
/* Send SCO data */
void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb)
skb_queue_tail(&conn->data_q, skb);
queue_work(hdev->workqueue, &hdev->tx_work);
}
-EXPORT_SYMBOL(hci_send_sco);
/* ---- HCI TX task (outgoing data) ---- */
/* HCI Connection scheduler */
-static inline struct hci_conn *hci_low_sent(struct hci_dev *hdev, __u8 type, int *quote)
+static 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, *c;
return conn;
}
-static inline void hci_link_tx_to(struct hci_dev *hdev, __u8 type)
+static void hci_link_tx_to(struct hci_dev *hdev, __u8 type)
{
struct hci_conn_hash *h = &hdev->conn_hash;
struct hci_conn *c;
list_for_each_entry_rcu(c, &h->list, list) {
if (c->type == type && c->sent) {
BT_ERR("%s killing stalled connection %s",
- hdev->name, batostr(&c->dst));
+ hdev->name, batostr(&c->dst));
hci_acl_disconn(c, 0x13);
}
}
rcu_read_unlock();
}
-static inline struct hci_chan *hci_chan_sent(struct hci_dev *hdev, __u8 type,
- int *quote)
+static struct hci_chan *hci_chan_sent(struct hci_dev *hdev, __u8 type,
+ int *quote)
{
struct hci_conn_hash *h = &hdev->conn_hash;
struct hci_chan *chan = NULL;
skb->priority = HCI_PRIO_MAX - 1;
BT_DBG("chan %p skb %p promoted to %d", chan, skb,
- skb->priority);
+ skb->priority);
}
if (hci_conn_num(hdev, type) == num)
return DIV_ROUND_UP(skb->len - HCI_ACL_HDR_SIZE, hdev->block_len);
}
-static inline void __check_timeout(struct hci_dev *hdev, unsigned int cnt)
+static void __check_timeout(struct hci_dev *hdev, unsigned int cnt)
{
if (!test_bit(HCI_RAW, &hdev->flags)) {
/* ACL tx timeout must be longer than maximum
* link supervision timeout (40.9 seconds) */
if (!cnt && time_after(jiffies, hdev->acl_last_tx +
- msecs_to_jiffies(HCI_ACL_TX_TIMEOUT)))
+ msecs_to_jiffies(HCI_ACL_TX_TIMEOUT)))
hci_link_tx_to(hdev, ACL_LINK);
}
}
-static inline void hci_sched_acl_pkt(struct hci_dev *hdev)
+static void hci_sched_acl_pkt(struct hci_dev *hdev)
{
unsigned int cnt = hdev->acl_cnt;
struct hci_chan *chan;
__check_timeout(hdev, cnt);
while (hdev->acl_cnt &&
- (chan = hci_chan_sent(hdev, ACL_LINK, "e))) {
+ (chan = hci_chan_sent(hdev, ACL_LINK, "e))) {
u32 priority = (skb_peek(&chan->data_q))->priority;
while (quote-- && (skb = skb_peek(&chan->data_q))) {
BT_DBG("chan %p skb %p len %d priority %u", chan, skb,
- skb->len, skb->priority);
+ skb->len, skb->priority);
/* Stop if priority has changed */
if (skb->priority < priority)
hci_prio_recalculate(hdev, ACL_LINK);
}
-static inline void hci_sched_acl_blk(struct hci_dev *hdev)
+static void hci_sched_acl_blk(struct hci_dev *hdev)
{
unsigned int cnt = hdev->block_cnt;
struct hci_chan *chan;
__check_timeout(hdev, cnt);
while (hdev->block_cnt > 0 &&
- (chan = hci_chan_sent(hdev, ACL_LINK, "e))) {
+ (chan = hci_chan_sent(hdev, ACL_LINK, "e))) {
u32 priority = (skb_peek(&chan->data_q))->priority;
while (quote > 0 && (skb = skb_peek(&chan->data_q))) {
int blocks;
BT_DBG("chan %p skb %p len %d priority %u", chan, skb,
- skb->len, skb->priority);
+ skb->len, skb->priority);
/* Stop if priority has changed */
if (skb->priority < priority)
return;
hci_conn_enter_active_mode(chan->conn,
- bt_cb(skb)->force_active);
+ bt_cb(skb)->force_active);
hci_send_frame(skb);
hdev->acl_last_tx = jiffies;
hci_prio_recalculate(hdev, ACL_LINK);
}
-static inline void hci_sched_acl(struct hci_dev *hdev)
+static void hci_sched_acl(struct hci_dev *hdev)
{
BT_DBG("%s", hdev->name);
}
/* Schedule SCO */
-static inline void hci_sched_sco(struct hci_dev *hdev)
+static void hci_sched_sco(struct hci_dev *hdev)
{
struct hci_conn *conn;
struct sk_buff *skb;
}
}
-static inline void hci_sched_esco(struct hci_dev *hdev)
+static void hci_sched_esco(struct hci_dev *hdev)
{
struct hci_conn *conn;
struct sk_buff *skb;
if (!hci_conn_num(hdev, ESCO_LINK))
return;
- while (hdev->sco_cnt && (conn = hci_low_sent(hdev, ESCO_LINK, "e))) {
+ 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);
}
}
-static inline void hci_sched_le(struct hci_dev *hdev)
+static void hci_sched_le(struct hci_dev *hdev)
{
struct hci_chan *chan;
struct sk_buff *skb;
/* 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))
+ time_after(jiffies, hdev->le_last_tx + HZ * 45))
hci_link_tx_to(hdev, LE_LINK);
}
u32 priority = (skb_peek(&chan->data_q))->priority;
while (quote-- && (skb = skb_peek(&chan->data_q))) {
BT_DBG("chan %p skb %p len %d priority %u", chan, skb,
- skb->len, skb->priority);
+ skb->len, skb->priority);
/* Stop if priority has changed */
if (skb->priority < priority)
struct sk_buff *skb;
BT_DBG("%s acl %d sco %d le %d", hdev->name, hdev->acl_cnt,
- hdev->sco_cnt, hdev->le_cnt);
+ hdev->sco_cnt, hdev->le_cnt);
/* Schedule queues and send stuff to HCI driver */
/* ----- HCI RX task (incoming data processing) ----- */
/* ACL data packet */
-static inline void hci_acldata_packet(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_acldata_packet(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_acl_hdr *hdr = (void *) skb->data;
struct hci_conn *conn;
flags = hci_flags(handle);
handle = hci_handle(handle);
- BT_DBG("%s len %d handle 0x%x flags 0x%x", hdev->name, skb->len, handle, flags);
+ BT_DBG("%s len %d handle 0x%x flags 0x%x", hdev->name, skb->len,
+ handle, flags);
hdev->stat.acl_rx++;
return;
} else {
BT_ERR("%s ACL packet for unknown connection handle %d",
- hdev->name, handle);
+ hdev->name, handle);
}
kfree_skb(skb);
}
/* SCO data packet */
-static inline void hci_scodata_packet(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_scodata_packet(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_sco_hdr *hdr = (void *) skb->data;
struct hci_conn *conn;
return;
} else {
BT_ERR("%s SCO packet for unknown connection handle %d",
- hdev->name, handle);
+ hdev->name, handle);
}
kfree_skb(skb);
projects / platform / adaptation / renesas_rcar / renesas_kernel.git / blobdiff