Input: add CMA3000 accelerometer driver

Add support for CMA3000 Tri-axis accelerometer, which supports Motion
detect, Measurement and Free fall modes. CMA3000 supports both I2C/SPI
bus for communication, currently the driver supports I2C based
communication.

Signed-off-by: Hemanth V <hemanthv@ti.com>
Reviewed-by: Jonathan Cameron <jic23@cam.ac.uk>
Reviewed-by: Sergio Aguirre <saaguirre@ti.com>
Reviewed-by: Shubhrajyoti <Shubhrajyoti@ti.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 59 insertions, 0 deletions

diff --git a/include/linux/input/cma3000.h b/include/linux/input/cma3000.h
new file mode 100644
index 000000000000..cbbaac27d311
--- /dev/null
+++ b/include/linux/input/cma3000.h
@@ -0,0 +1,59 @@
+/*
+ * VTI CMA3000_Dxx Accelerometer driver
+ *
+ * Copyright (C) 2010 Texas Instruments
+ * Author: Hemanth V <hemanthv@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _LINUX_CMA3000_H
+#define _LINUX_CMA3000_H
+
+#define CMAMODE_DEFAULT    0
+#define CMAMODE_MEAS100    1
+#define CMAMODE_MEAS400    2
+#define CMAMODE_MEAS40     3
+#define CMAMODE_MOTDET     4
+#define CMAMODE_FF100      5
+#define CMAMODE_FF400      6
+#define CMAMODE_POFF       7
+
+#define CMARANGE_2G   2000
+#define CMARANGE_8G   8000
+
+/**
+ * struct cma3000_i2c_platform_data - CMA3000 Platform data
+ * @fuzz_x: Noise on X Axis
+ * @fuzz_y: Noise on Y Axis
+ * @fuzz_z: Noise on Z Axis
+ * @g_range: G range in milli g i.e 2000 or 8000
+ * @mode: Operating mode
+ * @mdthr: Motion detect threshold value
+ * @mdfftmr: Motion detect and free fall time value
+ * @ffthr: Free fall threshold value
+ */
+
+struct cma3000_platform_data {
+        int fuzz_x;
+        int fuzz_y;
+        int fuzz_z;
+        int g_range;
+        uint8_t mode;
+        uint8_t mdthr;
+        uint8_t mdfftmr;
+        uint8_t ffthr;
+        unsigned long irqflags;
+};
+
+#endif