diff options
| author | Ajitpal.Singh <ajitpal.singh@stericsson.com> | 2011-09-21 16:56:14 +0530 |
|---|---|---|
| committer | Philippe LANGLAIS <philippe.langlais@stericsson.com> | 2011-10-13 10:26:09 +0200 |
| commit | 1cd0b078e3beff5a4c5b6dfe134e38653f4f0483 (patch) | |
| tree | 16b5cdef6eb238a797a77ce8c3b7c1f47817ecf4 /drivers/staging/cw1200/wsm.h | |
| parent | 744a76525819adfe1b1652d465664e5a380ce29c (diff) | |
cw1200: Add 2byte hole in TXreq for unaligned buf
Adds a 2 bytes hole in the WSM Transmit request when skb->data is
aligned at 2 bytes.This will make the transmit request 4byte aligned.
This optmisation is need for DMA.
The firmware is informed about the hole by setting BIT7 in the
WSM Transmit Request flags.
ST-Ericsson ID: 357764
ST-Ericsson FOSS-OUT ID: NA
Change-Id: Idbb60459ca645575c2afc74f2421b0fa86121cf0
Signed-off-by: Ajitpal.Singh <ajitpal.singh@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/33668
Tested-by: Dmitry TARNYAGIN <dmitry.tarnyagin@stericsson.com>
Reviewed-by: Philippe LANGLAIS <philippe.langlais@stericsson.com>
Diffstat (limited to 'drivers/staging/cw1200/wsm.h')
| -rw-r--r-- | drivers/staging/cw1200/wsm.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/staging/cw1200/wsm.h b/drivers/staging/cw1200/wsm.h index f0b07dc08a2..6698d771396 100644 --- a/drivers/staging/cw1200/wsm.h +++ b/drivers/staging/cw1200/wsm.h @@ -284,6 +284,9 @@ struct cw1200_common; /* Macro to fetch encryption key index. */ #define WSM_RX_STATUS_KEY_IDX(status) (((status >> 20)) & 0x0F) +/* Frame Control field starts at Frame offset + 2 */ +#define WSM_TX_2BYTES_SHIFT (BIT(7)) + /* Join mode */ /* IBSS */ #define WSM_JOIN_MODE_IBSS (0) |