lis3: add click function
The LIS302DL accelerometer chip has a 'click' feature which can be used to
detect sudden motion on any of the three axis. Configuration data is
passed via spi platform_data and no action is taken if that's not
specified, so it won't harm any existing platform.
To make the configuration effective, the IRQ lines need to be set up
appropriately. This patch also adds a way to do that from board support
code.
The DD_* definitions were factored out to an own enum because they are
specific to LIS3LV02D devices.
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/hwmon/lis3lv02d.h b/drivers/hwmon/lis3lv02d.h
index 5a5a196..e320e2f 100644
--- a/drivers/hwmon/lis3lv02d.h
+++ b/drivers/hwmon/lis3lv02d.h
@@ -29,12 +29,14 @@
* They can also be connected via I²C.
*/
+#include <linux/lis3lv02d.h>
+
/* 2-byte registers */
#define LIS_DOUBLE_ID 0x3A /* LIS3LV02D[LQ] */
/* 1-byte registers */
#define LIS_SINGLE_ID 0x3B /* LIS[32]02DL and others */
-enum lis3lv02d_reg {
+enum lis3_reg {
WHO_AM_I = 0x0F,
OFFSET_X = 0x16,
OFFSET_Y = 0x17,
@@ -62,6 +64,19 @@
FF_WU_THS_L = 0x34,
FF_WU_THS_H = 0x35,
FF_WU_DURATION = 0x36,
+};
+
+enum lis302d_reg {
+ CLICK_CFG = 0x38,
+ CLICK_SRC = 0x39,
+ CLICK_THSY_X = 0x3B,
+ CLICK_THSZ = 0x3C,
+ CLICK_TIMELIMIT = 0x3D,
+ CLICK_LATENCY = 0x3E,
+ CLICK_WINDOW = 0x3F,
+};
+
+enum lis3lv02d_reg {
DD_CFG = 0x38,
DD_SRC = 0x39,
DD_ACK = 0x3A,
@@ -183,6 +198,8 @@
struct fasync_struct *async_queue; /* queue for the misc device */
wait_queue_head_t misc_wait; /* Wait queue for the misc device */
unsigned long misc_opened; /* bit0: whether the device is open */
+
+ struct lis3lv02d_platform_data *pdata; /* for passing board config */
};
int lis3lv02d_init_device(struct lis3lv02d *lis3);