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authorMichael Hennerich <michael.hennerich@analog.com>2010-06-25 19:44:10 +0400
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2010-06-25 19:55:15 +0400
commit671386bb23c57e5448f386a41101ed65ad1d488c (patch)
tree24a5292641e6228833ba09ec309838a426a55fee /include/linux/input
parente27c729219ad24c8ac9a4b34cf192e56917565c5 (diff)
downloadlinux-671386bb23c57e5448f386a41101ed65ad1d488c.tar.xz
Input: adxl34x - add support for ADXL346 orientation sensing
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'include/linux/input')
-rw-r--r--include/linux/input/adxl34x.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/include/linux/input/adxl34x.h b/include/linux/input/adxl34x.h
index 712118238038..df00d998a44a 100644
--- a/include/linux/input/adxl34x.h
+++ b/include/linux/input/adxl34x.h
@@ -288,6 +288,62 @@ struct adxl34x_platform_data {
u32 ev_code_ff; /* EV_KEY */
u32 ev_code_act_inactivity; /* EV_KEY */
+ /*
+ * Use ADXL34x INT2 instead of INT1
+ */
u8 use_int2;
+
+ /*
+ * ADXL346 only ORIENTATION SENSING feature
+ * The orientation function of the ADXL346 reports both 2-D and
+ * 3-D orientation concurrently.
+ */
+
+#define ADXL_EN_ORIENTATION_2D 1
+#define ADXL_EN_ORIENTATION_3D 2
+#define ADXL_EN_ORIENTATION_2D_3D 3
+
+ u8 orientation_enable;
+
+ /*
+ * The width of the deadzone region between two or more
+ * orientation positions is determined by setting the Deadzone
+ * value. The deadzone region size can be specified with a
+ * resolution of 3.6deg. The deadzone angle represents the total
+ * angle where the orientation is considered invalid.
+ */
+
+#define ADXL_DEADZONE_ANGLE_0p0 0 /* !!!0.0 [deg] */
+#define ADXL_DEADZONE_ANGLE_3p6 1 /* 3.6 [deg] */
+#define ADXL_DEADZONE_ANGLE_7p2 2 /* 7.2 [deg] */
+#define ADXL_DEADZONE_ANGLE_10p8 3 /* 10.8 [deg] */
+#define ADXL_DEADZONE_ANGLE_14p4 4 /* 14.4 [deg] */
+#define ADXL_DEADZONE_ANGLE_18p0 5 /* 18.0 [deg] */
+#define ADXL_DEADZONE_ANGLE_21p6 6 /* 21.6 [deg] */
+#define ADXL_DEADZONE_ANGLE_25p2 7 /* 25.2 [deg] */
+
+ u8 deadzone_angle;
+
+ /*
+ * To eliminate most human motion such as walking or shaking,
+ * a Divisor value should be selected to effectively limit the
+ * orientation bandwidth. Set the depth of the filter used to
+ * low-pass filter the measured acceleration for stable
+ * orientation sensing
+ */
+
+#define ADXL_LP_FILTER_DIVISOR_2 0
+#define ADXL_LP_FILTER_DIVISOR_4 1
+#define ADXL_LP_FILTER_DIVISOR_8 2
+#define ADXL_LP_FILTER_DIVISOR_16 3
+#define ADXL_LP_FILTER_DIVISOR_32 4
+#define ADXL_LP_FILTER_DIVISOR_64 5
+#define ADXL_LP_FILTER_DIVISOR_128 6
+#define ADXL_LP_FILTER_DIVISOR_256 7
+
+ u8 divisor_length;
+
+ u32 ev_codes_orient_2d[4]; /* EV_KEY {+X, -X, +Y, -Y} */
+ u32 ev_codes_orient_3d[6]; /* EV_KEY {+Z, +Y, +X, -X, -Y, -Z} */
};
#endif