X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Flinux%2Fmma8452.h;h=ef9e4f607a4c3919062d90674abcdbc6a1aa730f;hb=b84d18b4cf5bb5fe6f0d7169baeb8c29e0a81664;hp=9de60414684ab784ab53d3ff0623a9ea5ee3ecea;hpb=6bc981e2f208e0ac6e10ee86f18c1904633f059d;p=firefly-linux-kernel-4.4.55.git

diff --git a/include/linux/mma8452.h b/include/linux/mma8452.h
index 9de60414684a..ef9e4f607a4c 100755
--- a/include/linux/mma8452.h
+++ b/include/linux/mma8452.h
@@ -85,33 +85,46 @@
 #define MMA8452_ASLP_RATE_1P56        3
 #define MMA8452_ASLP_RATE_SHIFT		  6
 
-#define ACTIVE_MASK				1
-#define FREAD_MASK				2
+/*Auto-adapt mma845x series*/
+/*Modified by Yick @ROCKCHIP 
+  xieyi@rockchips.com*/
+/*
+  Range: unit(ug 1g=1 000 000 ug)
+  		 option(2g,4g,8g)
+		 G would be defined on android HAL
+  Precision: bit wide of valid data
+  Boundary: Max positive count
+  Gravity_step: gravity value indicated by per count
+ */
+#define FREAD_MASK				0 /* enabled(1<<1) only if reading MSB 8bits*/
+#define MMA845X_RANGE			2000000
+/* mma8451 */
+#define MMA8451_PRECISION       14
+#define MMA8451_BOUNDARY        (0x1 << (MMA8451_PRECISION - 1))
+#define MMA8451_GRAVITY_STEP    MMA845X_RANGE / MMA8451_BOUNDARY
+
+/* mma8452 */
+#define MMA8452_PRECISION       12
+#define MMA8452_BOUNDARY        (0x1 << (MMA8452_PRECISION - 1))
+#define MMA8452_GRAVITY_STEP    MMA845X_RANGE / MMA8452_BOUNDARY
+
+/* mma8453 */
+#define MMA8453_PRECISION       10
+#define MMA8453_BOUNDARY        (0x1 << (MMA8453_PRECISION - 1))
+#define MMA8453_GRAVITY_STEP    MMA845X_RANGE / MMA8453_BOUNDARY
 
+/*End of precision adaption*/
+
+#define MMA8452_TOTAL_TIME      10
+
+#define ACTIVE_MASK				1
 
 /*status*/
 #define MMA8452_SUSPEND           2
 #define MMA8452_OPEN           1
 #define MMA8452_CLOSE          0
 
-
-
-//#define MMA8452_IIC_ADDR 	    0x98  
 #define MMA8452_REG_LEN         11
-#define MMA8452_GRAVITY_STEP    156 //2g full scale range
-#define MMA8452_PRECISION       8 //8bit data
-#define MMA8452_BOUNDARY        (0x1 << (MMA8452_PRECISION - 1))
-#define MMA8452_TOTAL_TIME      10
-
-
-/*
-struct mma8452_platform_data {
-	int reset;
-	int clk_on;
-	int intr;
-};
-
-*/
 
 struct mma8452_axis {
 	int x;