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authorArend van Spriel <arend@broadcom.com>2013-03-03 12:45:27 +0100
committerJohn W. Linville <linville@tuxdriver.com>2013-03-06 16:28:40 -0500
commitedee1668bb1b7d977f39c34f63916b82647f024a (patch)
tree9e94acf886accbf1eb28c8261232292015de2e4d /drivers
parentbee1b848877b9e4512bdda480f73cda12b593e2f (diff)
downloadlinux-edee1668bb1b7d977f39c34f63916b82647f024a.tar.gz
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.h23
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 */