diff options
| author | Arend van Spriel <arend@broadcom.com> | 2013-03-03 12:45:27 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2013-03-06 16:28:40 -0500 |
| commit | edee1668bb1b7d977f39c34f63916b82647f024a (patch) | |
| tree | 9e94acf886accbf1eb28c8261232292015de2e4d /drivers | |
| parent | bee1b848877b9e4512bdda480f73cda12b593e2f (diff) | |
brcmutil: add macros for setting bitfields using mask/shift operations
Added inline functions to set bitfields in an unsigned integer variable.
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/brcm80211/include/brcmu_utils.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/net/wireless/brcm80211/include/brcmu_utils.h b/drivers/net/wireless/brcm80211/include/brcmu_utils.h index 477b92ad3d62..82fcfe8c9bc1 100644 --- a/drivers/net/wireless/brcm80211/include/brcmu_utils.h +++ b/drivers/net/wireless/brcm80211/include/brcmu_utils.h @@ -173,6 +173,29 @@ extern void brcmu_pktq_flush(struct pktq *pq, bool dir, /* ip address */ struct ipv4_addr; +/* + * bitfield macros using masking and shift + * + * remark: the mask parameter should be a shifted mask. + */ +static inline void brcmu_maskset32(u32 *var, u32 mask, u8 shift, u32 value) +{ + value = (value << shift) & mask; + *var = (*var & ~mask) | value; +} +static inline u32 brcmu_maskget32(u32 var, u32 mask, u8 shift) +{ + return (var & mask) >> shift; +} +static inline void brcmu_maskset16(u16 *var, u16 mask, u8 shift, u16 value) +{ + value = (value << shift) & mask; + *var = (*var & ~mask) | value; +} +static inline u16 brcmu_maskget16(u16 var, u16 mask, u8 shift) +{ + return (var & mask) >> shift; +} /* externs */ /* format/print */ |