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Diffstat (limited to 'drivers/iio/accel/bma400.h')
-rw-r--r--drivers/iio/accel/bma400.h50
1 files changed, 45 insertions, 5 deletions
diff --git a/drivers/iio/accel/bma400.h b/drivers/iio/accel/bma400.h
index c4c8d74155c2..e8f802a82300 100644
--- a/drivers/iio/accel/bma400.h
+++ b/drivers/iio/accel/bma400.h
@@ -39,6 +39,7 @@
#define BMA400_INT_STAT0_REG 0x0e
#define BMA400_INT_STAT1_REG 0x0f
#define BMA400_INT_STAT2_REG 0x10
+#define BMA400_INT12_MAP_REG 0x23
/* Temperature register */
#define BMA400_TEMP_DATA_REG 0x11
@@ -53,6 +54,9 @@
#define BMA400_STEP_CNT1_REG 0x16
#define BMA400_STEP_CNT3_REG 0x17
#define BMA400_STEP_STAT_REG 0x18
+#define BMA400_STEP_INT_MSK BIT(0)
+#define BMA400_STEP_RAW_LEN 0x03
+#define BMA400_STEP_STAT_MASK GENMASK(9, 8)
/*
* Read-write configuration registers
@@ -62,6 +66,13 @@
#define BMA400_ACC_CONFIG2_REG 0x1b
#define BMA400_CMD_REG 0x7e
+/* Interrupt registers */
+#define BMA400_INT_CONFIG0_REG 0x1f
+#define BMA400_INT_CONFIG1_REG 0x20
+#define BMA400_INT1_MAP_REG 0x21
+#define BMA400_INT_IO_CTRL_REG 0x24
+#define BMA400_INT_DRDY_MSK BIT(7)
+
/* Chip ID of BMA 400 devices found in the chip ID register. */
#define BMA400_ID_REG_VAL 0x90
@@ -83,8 +94,38 @@
#define BMA400_ACC_ODR_MIN_WHOLE_HZ 25
#define BMA400_ACC_ODR_MIN_HZ 12
-#define BMA400_SCALE_MIN 38357
-#define BMA400_SCALE_MAX 306864
+/* Generic interrupts register */
+#define BMA400_GEN1INT_CONFIG0 0x3f
+#define BMA400_GEN2INT_CONFIG0 0x4A
+#define BMA400_GEN_CONFIG1_OFF 0x01
+#define BMA400_GEN_CONFIG2_OFF 0x02
+#define BMA400_GEN_CONFIG3_OFF 0x03
+#define BMA400_GEN_CONFIG31_OFF 0x04
+#define BMA400_INT_GEN1_MSK BIT(2)
+#define BMA400_INT_GEN2_MSK BIT(3)
+#define BMA400_GEN_HYST_MSK GENMASK(1, 0)
+
+/*
+ * BMA400_SCALE_MIN macro value represents m/s^2 for 1 LSB before
+ * converting to micro values for +-2g range.
+ *
+ * For +-2g - 1 LSB = 0.976562 milli g = 0.009576 m/s^2
+ * For +-4g - 1 LSB = 1.953125 milli g = 0.019153 m/s^2
+ * For +-16g - 1 LSB = 7.8125 milli g = 0.076614 m/s^2
+ *
+ * The raw value which is used to select the different ranges is determined
+ * by the first bit set position from the scale value, so BMA400_SCALE_MIN
+ * should be odd.
+ *
+ * Scale values for +-2g, +-4g, +-8g and +-16g are populated into bma400_scales
+ * array by left shifting BMA400_SCALE_MIN.
+ * e.g.:
+ * To select +-2g = 9577 << 0 = raw value to write is 0.
+ * To select +-8g = 9577 << 2 = raw value to write is 2.
+ * To select +-16g = 9577 << 3 = raw value to write is 3.
+ */
+#define BMA400_SCALE_MIN 9577
+#define BMA400_SCALE_MAX 76617
#define BMA400_NUM_REGULATORS 2
#define BMA400_VDD_REGULATOR 0
@@ -92,8 +133,7 @@
extern const struct regmap_config bma400_regmap_config;
-int bma400_probe(struct device *dev, struct regmap *regmap, const char *name);
-
-void bma400_remove(struct device *dev);
+int bma400_probe(struct device *dev, struct regmap *regmap, int irq,
+ const char *name);
#endif