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Commit edee1668 authored by Arend van Spriel's avatar Arend van Spriel Committed by John W. Linville
Browse files

brcmutil: add macros for setting bitfields using mask/shift operations 



Added inline functions to set bitfields in an unsigned integer variable.

Reviewed-by: default avatarHante Meuleman <meuleman@broadcom.com>
Reviewed-by: default avatarPieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: default avatarArend van Spriel <arend@broadcom.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent bee1b848

drivers/net/wireless/brcm80211/include/brcmu_utils.h

+23 −0
Original line number Diff line number Diff line
@@ -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 */