Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Bluetooth: Unify mode related management messages to a single struct

Browse source 
The powered, connectable and discoverable messages all have the same
format. By using a single struct for all of them a lot of code can be
simplified and reused.

Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Johan Hedberg 2010-12-30 00:38:22 +02:00 committed by Gustavo F. Padovan
parent 9fbcbb455d
commit 72a734ec1a
2 changed files with 33 additions and 145 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

41
include/net/bluetooth/mgmt.h
View file

@ -59,35 +59,16 @@ struct mgmt_rp_read_info {
__u16 hci_rev;
} __packed;
struct mgmt_mode {
__le16 index;
__u8 val;
} __packed;
#define MGMT_OP_SET_POWERED 0x0005
struct mgmt_cp_set_powered {
__le16 index;
__u8 powered;
} __packed;
struct mgmt_rp_set_powered {
__le16 index;
__u8 powered;
} __packed;
#define MGMT_OP_SET_DISCOVERABLE 0x0006
struct mgmt_cp_set_discoverable {
__le16 index;
__u8 discoverable;
} __packed;
struct mgmt_rp_set_discoverable {
__le16 index;
__u8 discoverable;
} __packed;
#define MGMT_OP_SET_CONNECTABLE 0x0007
struct mgmt_cp_set_connectable {
__le16 index;
__u8 connectable;
} __packed;
struct mgmt_rp_set_connectable {
__le16 index;
__u8 connectable;
} __packed;
#define MGMT_EV_CMD_COMPLETE 0x0001
struct mgmt_ev_cmd_complete {
@ -118,19 +99,7 @@ struct mgmt_ev_index_removed {
} __packed;
#define MGMT_EV_POWERED 0x0006
struct mgmt_ev_powered {
__le16 index;
__u8 powered;
} __packed;
#define MGMT_EV_DISCOVERABLE 0x0007
struct mgmt_ev_discoverable {
__le16 index;
__u8 discoverable;
} __packed;
#define MGMT_EV_CONNECTABLE 0x0008
struct mgmt_ev_connectable {
__le16 index;
__u8 connectable;
} __packed;

137
net/bluetooth/mgmt.c
View file

@ -322,7 +322,7 @@ static void mgmt_pending_remove(u16 opcode, int index)
static int set_powered(struct sock *sk, unsigned char *data, u16 len)
{
struct mgmt_cp_set_powered *cp;
struct mgmt_mode *cp;
struct hci_dev *hdev;
u16 dev_id;
int ret, up;
@ -339,7 +339,7 @@ static int set_powered(struct sock *sk, unsigned char *data, u16 len)
hci_dev_lock_bh(hdev);
up = test_bit(HCI_UP, &hdev->flags);
if ((cp->powered && up) || (!cp->powered && !up)) {
if ((cp->val && up) || (!cp->val && !up)) {
ret = cmd_status(sk, MGMT_OP_SET_POWERED, EALREADY);
goto failed;
}
@ -353,7 +353,7 @@ static int set_powered(struct sock *sk, unsigned char *data, u16 len)
if (ret < 0)
goto failed;
if (cp->powered)
if (cp->val)
queue_work(hdev->workqueue, &hdev->power_on);
else
queue_work(hdev->workqueue, &hdev->power_off);
@ -368,7 +368,7 @@ static int set_powered(struct sock *sk, unsigned char *data, u16 len)
static int set_discoverable(struct sock *sk, unsigned char *data, u16 len)
{
struct mgmt_cp_set_discoverable *cp;
struct mgmt_mode *cp;
struct hci_dev *hdev;
u16 dev_id;
u8 scan;
@ -396,7 +396,7 @@ static int set_discoverable(struct sock *sk, unsigned char *data, u16 len)
goto failed;
}
if (cp->discoverable == test_bit(HCI_ISCAN, &hdev->flags) &&
if (cp->val == test_bit(HCI_ISCAN, &hdev->flags) &&
test_bit(HCI_PSCAN, &hdev->flags)) {
err = cmd_status(sk, MGMT_OP_SET_DISCOVERABLE, EALREADY);
goto failed;
@ -408,7 +408,7 @@ static int set_discoverable(struct sock *sk, unsigned char *data, u16 len)
scan = SCAN_PAGE;
if (cp->discoverable)
if (cp->val)
scan |= SCAN_INQUIRY;
err = hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
@ -424,7 +424,7 @@ static int set_discoverable(struct sock *sk, unsigned char *data, u16 len)
static int set_connectable(struct sock *sk, unsigned char *data, u16 len)
{
struct mgmt_cp_set_connectable *cp;
struct mgmt_mode *cp;
struct hci_dev *hdev;
u16 dev_id;
u8 scan;
@ -452,7 +452,7 @@ static int set_connectable(struct sock *sk, unsigned char *data, u16 len)
goto failed;
}
if (cp->connectable == test_bit(HCI_PSCAN, &hdev->flags)) {
if (cp->val == test_bit(HCI_PSCAN, &hdev->flags)) {
err = cmd_status(sk, MGMT_OP_SET_CONNECTABLE, EALREADY);
goto failed;
}
@ -461,7 +461,7 @@ static int set_connectable(struct sock *sk, unsigned char *data, u16 len)
if (err < 0)
goto failed;
if (cp->connectable)
if (cp->val)
scan = SCAN_PAGE;
else
scan = 0;
@ -584,20 +584,20 @@ int mgmt_index_removed(u16 index)
}
struct cmd_lookup {
u8 value;
u8 val;
struct sock *sk;
};
static void power_rsp(struct pending_cmd *cmd, void *data)
static void mode_rsp(struct pending_cmd *cmd, void *data)
{
struct mgmt_hdr *hdr;
struct mgmt_ev_cmd_complete *ev;
struct mgmt_rp_set_powered *rp;
struct mgmt_cp_set_powered *cp = cmd->cmd;
struct mgmt_mode *rp;
struct mgmt_mode *cp = cmd->cmd;
struct sk_buff *skb;
struct cmd_lookup *match = data;
if (cp->powered != match->value)
if (cp->val != match->val)
return;
skb = alloc_skb(sizeof(*hdr) + sizeof(*ev) + sizeof(*rp), GFP_ATOMIC);
@ -613,7 +613,7 @@ static void power_rsp(struct pending_cmd *cmd, void *data)
rp = (void *) skb_put(skb, sizeof(*rp));
put_unaligned_le16(cmd->index, &rp->index);
rp->powered = cp->powered;
rp->val = cp->val;
if (sock_queue_rcv_skb(cmd->sk, skb) < 0)
kfree_skb(skb);
@ -630,14 +630,14 @@ static void power_rsp(struct pending_cmd *cmd, void *data)
int mgmt_powered(u16 index, u8 powered)
{
struct mgmt_ev_powered ev;
struct mgmt_mode ev;
struct cmd_lookup match = { powered, NULL };
int ret;
put_unaligned_le16(index, &ev.index);
ev.powered = powered;
mgmt_pending_foreach(MGMT_OP_SET_POWERED, index, mode_rsp, &match);
mgmt_pending_foreach(MGMT_OP_SET_POWERED, index, power_rsp, &match);
put_unaligned_le16(index, &ev.index);
ev.val = powered;
ret = mgmt_event(MGMT_EV_POWERED, &ev, sizeof(ev), match.sk);
@ -647,57 +647,17 @@ int mgmt_powered(u16 index, u8 powered)
return ret;
}
static void discoverable_rsp(struct pending_cmd *cmd, void *data)
{
struct mgmt_cp_set_discoverable *cp = cmd->cmd;
struct cmd_lookup *match = data;
struct sk_buff *skb;
struct mgmt_hdr *hdr;
struct mgmt_ev_cmd_complete *ev;
struct mgmt_rp_set_discoverable *rp;
if (cp->discoverable != match->value)
return;
skb = alloc_skb(sizeof(*hdr) + sizeof(*ev) + sizeof(*rp), GFP_ATOMIC);
if (!skb)
return;
hdr = (void *) skb_put(skb, sizeof(*hdr));
hdr->opcode = cpu_to_le16(MGMT_EV_CMD_COMPLETE);
hdr->len = cpu_to_le16(sizeof(*ev) + sizeof(*rp));
ev = (void *) skb_put(skb, sizeof(*ev));
put_unaligned_le16(MGMT_OP_SET_DISCOVERABLE, &ev->opcode);
rp = (void *) skb_put(skb, sizeof(*rp));
put_unaligned_le16(cmd->index, &rp->index);
rp->discoverable = cp->discoverable;
if (sock_queue_rcv_skb(cmd->sk, skb) < 0)
kfree_skb(skb);
list_del(&cmd->list);
if (match->sk == NULL) {
match->sk = cmd->sk;
sock_hold(match->sk);
}
mgmt_pending_free(cmd);
}
int mgmt_discoverable(u16 index, u8 discoverable)
{
struct mgmt_ev_discoverable ev;
struct mgmt_mode ev;
struct cmd_lookup match = { discoverable, NULL };
int ret;
put_unaligned_le16(index, &ev.index);
ev.discoverable = discoverable;
mgmt_pending_foreach(MGMT_OP_SET_DISCOVERABLE, index,
discoverable_rsp, &match);
mode_rsp, &match);
put_unaligned_le16(index, &ev.index);
ev.val = discoverable;
ret = mgmt_event(MGMT_EV_DISCOVERABLE, &ev, sizeof(ev), match.sk);
@ -707,57 +667,16 @@ int mgmt_discoverable(u16 index, u8 discoverable)
return ret;
}
static void connectable_rsp(struct pending_cmd *cmd, void *data)
{
struct mgmt_cp_set_connectable *cp = cmd->cmd;
struct cmd_lookup *match = data;
struct sk_buff *skb;
struct mgmt_hdr *hdr;
struct mgmt_ev_cmd_complete *ev;
struct mgmt_rp_set_connectable *rp;
if (cp->connectable != match->value)
return;
skb = alloc_skb(sizeof(*hdr) + sizeof(*ev) + sizeof(*rp), GFP_ATOMIC);
if (!skb)
return;
hdr = (void *) skb_put(skb, sizeof(*hdr));
hdr->opcode = cpu_to_le16(MGMT_EV_CMD_COMPLETE);
hdr->len = cpu_to_le16(sizeof(*ev) + sizeof(*rp));
ev = (void *) skb_put(skb, sizeof(*ev));
put_unaligned_le16(MGMT_OP_SET_CONNECTABLE, &ev->opcode);
rp = (void *) skb_put(skb, sizeof(*rp));
put_unaligned_le16(cmd->index, &rp->index);
rp->connectable = cp->connectable;
if (sock_queue_rcv_skb(cmd->sk, skb) < 0)
kfree_skb(skb);
list_del(&cmd->list);
if (match->sk == NULL) {
match->sk = cmd->sk;
sock_hold(match->sk);
}
mgmt_pending_free(cmd);
}
int mgmt_connectable(u16 index, u8 connectable)
{
struct mgmt_ev_connectable ev;
struct mgmt_mode ev;
struct cmd_lookup match = { connectable, NULL };
int ret;
put_unaligned_le16(index, &ev.index);
ev.connectable = connectable;
mgmt_pending_foreach(MGMT_OP_SET_CONNECTABLE, index, mode_rsp, &match);
mgmt_pending_foreach(MGMT_OP_SET_CONNECTABLE, index,
connectable_rsp, &match);
put_unaligned_le16(index, &ev.index);
ev.val = connectable;
ret = mgmt_event(MGMT_EV_CONNECTABLE, &ev, sizeof(ev), match.sk);