[Sound-open-firmware] [PATCH 08/15] [RFC][v2]DMIC: Add DMIC registers bit fields handling macros

[Seppo Ingalsuo]

Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo at linux.intel.com>
---
 src/include/sof/io.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/include/sof/io.h b/src/include/sof/io.h
index 3181d41..05a34d2 100644
--- a/src/include/sof/io.h
+++ b/src/include/sof/io.h
@@ -33,6 +33,13 @@
 
 #include <stdint.h>
 
+/* Macros for register bits access */
+#define BIT(b)			(1 << (b))
+#define MASK(b_hi, b_lo)	((1 << ((b_hi) - (b_lo) + 1)) - 1)
+#define SET_BIT(b, x)		(((x) & 1) << (b))
+#define SET_BITS(b_hi, b_lo, x)	\
+	(((x) & ((1 << ((b_hi) - (b_lo) + 1)) - 1)) << (b_lo))
+
 static inline uint32_t io_reg_read(uint32_t reg)
 {
 	return *((volatile uint32_t*)reg);
-- 
2.14.1