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Commit f97268fc authored by Andrei Emeltchenko's avatar Andrei Emeltchenko Committed by Gustavo Padovan
Browse files

Bluetooth: A2MP: Create amp_mgr global list 



Create amp_mgr_list global list which will be used by different
hci devices to find amp_mgr.

Signed-off-by: default avatarAndrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: default avatarGustavo Padovan <gustavo.padovan@collabora.co.uk>
parent b078b564

include/net/bluetooth/a2mp.h

+10 −0
Original line number Diff line number Diff line
@@ -19,12 +19,18 @@ 


#define A2MP_FEAT_EXT	0x8000



enum amp_mgr_state {

	READ_LOC_AMP_INFO,

};



struct amp_mgr {

	struct list_head	list;

	struct l2cap_conn	*l2cap_conn;

	struct l2cap_chan	*a2mp_chan;

	struct kref		kref;

	__u8			ident;

	__u8			handle;

	enum amp_mgr_state	state;

	unsigned long		flags;

};
@@ -118,9 +124,13 @@ struct a2mp_physlink_rsp { 
#define A2MP_STATUS_PHYS_LINK_EXISTS		0x05

#define A2MP_STATUS_SECURITY_VIOLATION		0x06



extern struct list_head amp_mgr_list;

extern struct mutex amp_mgr_list_lock;



void amp_mgr_get(struct amp_mgr *mgr);

int amp_mgr_put(struct amp_mgr *mgr);

struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn,

				       struct sk_buff *skb);

struct amp_mgr *amp_mgr_lookup_by_state(u8 state);



#endif /* __A2MP_H */

net/bluetooth/a2mp.c

+29 −0
Original line number Diff line number Diff line
@@ -17,6 +17,10 @@ 
#include <net/bluetooth/l2cap.h>

#include <net/bluetooth/a2mp.h>



/* Global AMP Manager list */

LIST_HEAD(amp_mgr_list);

DEFINE_MUTEX(amp_mgr_list_lock);



/* A2MP build & send command helper functions */

static struct a2mp_cmd *__a2mp_build(u8 code, u8 ident, u16 len, void *data)

{
@@ -516,6 +520,10 @@ static void amp_mgr_destroy(struct kref *kref) 


	BT_DBG("mgr %p", mgr);



	mutex_lock(&amp_mgr_list_lock);

	list_del(&mgr->list);

	mutex_unlock(&amp_mgr_list_lock);



	kfree(mgr);

}
@@ -552,6 +560,10 @@ static struct amp_mgr *amp_mgr_create(struct l2cap_conn *conn) 


	kref_init(&mgr->kref);



	mutex_lock(&amp_mgr_list_lock);

	list_add(&mgr->list, &amp_mgr_list);

	mutex_unlock(&amp_mgr_list_lock);



	return mgr;

}
@@ -570,3 +582,20 @@ struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn, 


	return mgr->a2mp_chan;

}



struct amp_mgr *amp_mgr_lookup_by_state(u8 state)

{

	struct amp_mgr *mgr;



	mutex_lock(&amp_mgr_list_lock);

	list_for_each_entry(mgr, &amp_mgr_list, list) {

		if (mgr->state == state) {

			amp_mgr_get(mgr);

			mutex_unlock(&amp_mgr_list_lock);

			return mgr;

		}

	}

	mutex_unlock(&amp_mgr_list_lock);



	return NULL;

}