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ieee802154: add short address helpers 

This patch introduce some short address handling functionality into
ieee802154 headers.

Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Alexander Aring 2016-04-11 11:04:15 +02:00 committed by Marcel Holtmann
parent b7594148c7
commit 118a5cf8ae
2 changed files with 39 additions and 0 deletions
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29
include/linux/ieee802154.h
View File

@ -47,6 +47,7 @@
#define IEEE802154_ADDR_SHORT_UNSPEC 0xfffe
#define IEEE802154_EXTENDED_ADDR_LEN 8
#define IEEE802154_SHORT_ADDR_LEN 2
#define IEEE802154_LIFS_PERIOD 40
#define IEEE802154_SIFS_PERIOD 12
@ -289,6 +290,34 @@ static inline bool ieee802154_is_valid_extended_unicast_addr(__le64 addr)
!(addr & cpu_to_le64(0x0100000000000000ULL)));
}
/**
* ieee802154_is_broadcast_short_addr - check if short addr is broadcast
* @addr: short addr to check
*/
static inline bool ieee802154_is_broadcast_short_addr(__le16 addr)
{
return (addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST));
}
/**
* ieee802154_is_unspec_short_addr - check if short addr is unspecified
* @addr: short addr to check
*/
static inline bool ieee802154_is_unspec_short_addr(__le16 addr)
{
return (addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC));
}
/**
* ieee802154_is_valid_src_short_addr - check if source short address is valid
* @addr: short addr to check
*/
static inline bool ieee802154_is_valid_src_short_addr(__le16 addr)
{
return !(ieee802154_is_broadcast_short_addr(addr) ||
ieee802154_is_unspec_short_addr(addr));
}
/**
* ieee802154_random_extended_addr - generates a random extended address
* @addr: extended addr pointer to place the random address

10
include/net/mac802154.h
View File

@ -287,6 +287,16 @@ static inline void ieee802154_le16_to_be16(void *be16_dst, const void *le16_src)
put_unaligned_be16(get_unaligned_le16(le16_src), be16_dst);
}
/**
* ieee802154_be16_to_le16 - copies and convert be16 to le16
* @le16_dst: le16 destination pointer
* @be16_src: be16 source pointer
*/
static inline void ieee802154_be16_to_le16(void *le16_dst, const void *be16_src)
{
put_unaligned_le16(get_unaligned_be16(be16_src), le16_dst);
}
/**
* ieee802154_alloc_hw - Allocate a new hardware device
*