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authorMirko Vogt <mirko@openwrt.org>2008-12-12 11:58:53 +0000
committerMirko Vogt <mirko@openwrt.org>2008-12-12 11:58:53 +0000
commit614683faf8029100802db06a825648d0b6490285 (patch)
tree7401b135dc7ce24ff0175e67e0f2ce7f96296ff0 /target/linux/s3c24xx/patches-2.6.24/1309--lis302dl-open-floodgates-on-zero-threshold.patch.patch
parent4a018d2445c5f249179ff82c8fffb0e3b717f738 (diff)
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changed Makefile and profiles, added patches for kernel 2.6.24 (stable-branch of Openmoko)
SVN-Revision: 13613
Diffstat (limited to 'target/linux/s3c24xx/patches-2.6.24/1309--lis302dl-open-floodgates-on-zero-threshold.patch.patch')
-rw-r--r--target/linux/s3c24xx/patches-2.6.24/1309--lis302dl-open-floodgates-on-zero-threshold.patch.patch138
1 files changed, 138 insertions, 0 deletions
diff --git a/target/linux/s3c24xx/patches-2.6.24/1309--lis302dl-open-floodgates-on-zero-threshold.patch.patch b/target/linux/s3c24xx/patches-2.6.24/1309--lis302dl-open-floodgates-on-zero-threshold.patch.patch
new file mode 100644
index 0000000..bae3a54
--- /dev/null
+++ b/target/linux/s3c24xx/patches-2.6.24/1309--lis302dl-open-floodgates-on-zero-threshold.patch.patch
@@ -0,0 +1,138 @@
+From ca57dbb5effd245e2619f4b730f8247f7279f954 Mon Sep 17 00:00:00 2001
+From: Simon Kagstrom <simon.kagstrom@gmail.com>
+Date: Thu, 16 Oct 2008 01:19:47 +0100
+Subject: [PATCH] : lis302dl-open-floodgates-on-zero-threshold.patch
+
+Generate data ready interrupts if threshold is zero
+
+From: Simon Kagstrom <simon.kagstrom@gmail.com>
+
+If the threshold is set to zero, enable the data ready interrupt
+(generated one interrupt per datum). Otherwise use the freefall
+interrupt as source.
+
+Signed-off-by: Simon Kagstrom <simon.kagstrom@gmail.com>
+---
+ drivers/input/misc/lis302dl.c | 64 +++++++++++++++++++++++++++-------------
+ 1 files changed, 43 insertions(+), 21 deletions(-)
+
+diff --git a/drivers/input/misc/lis302dl.c b/drivers/input/misc/lis302dl.c
+index d738199..e404a45 100644
+--- a/drivers/input/misc/lis302dl.c
++++ b/drivers/input/misc/lis302dl.c
+@@ -44,6 +44,7 @@
+ #include <linux/lis302dl.h>
+
+ /* Utility functions */
++
+ static u8 __reg_read(struct lis302dl_info *lis, u8 reg)
+ {
+ return (lis->pdata->lis302dl_bitbang_reg_read)(lis, reg);
+@@ -132,6 +133,36 @@ static void __lis302dl_int_mode(struct device *dev, int int_pin,
+ }
+ }
+
++static void __enable_data_collection(struct lis302dl_info *lis)
++{
++ u_int8_t ctrl1 = LIS302DL_CTRL1_PD | LIS302DL_CTRL1_Xen |
++ LIS302DL_CTRL1_Yen | LIS302DL_CTRL1_Zen;
++
++ /* make sure we're powered up and generate data ready */
++ __reg_set_bit_mask(lis, LIS302DL_REG_CTRL1, ctrl1, ctrl1);
++
++ /* If the threshold is zero, let the device generated an interrupt
++ * on each datum */
++ if (lis->threshold == 0) {
++ __reg_write(lis, LIS302DL_REG_CTRL2, 0);
++ __lis302dl_int_mode(lis->dev, 1, LIS302DL_INTMODE_DATA_READY);
++ __lis302dl_int_mode(lis->dev, 2, LIS302DL_INTMODE_DATA_READY);
++ } else {
++ __reg_write(lis, LIS302DL_REG_CTRL2,
++ LIS302DL_CTRL2_HPFF1);
++ __reg_write(lis, LIS302DL_REG_FF_WU_THS_1, lis->threshold);
++ __reg_write(lis, LIS302DL_REG_FF_WU_DURATION_1, lis->duration);
++
++ /* Clear the HP filter "starting point" */
++ __reg_read(lis, LIS302DL_REG_HP_FILTER_RESET);
++ __reg_write(lis, LIS302DL_REG_FF_WU_CFG_1,
++ LIS302DL_FFWUCFG_XHIE | LIS302DL_FFWUCFG_YHIE |
++ LIS302DL_FFWUCFG_ZHIE);
++ __lis302dl_int_mode(lis->dev, 1, LIS302DL_INTMODE_FF_WU_12);
++ __lis302dl_int_mode(lis->dev, 2, LIS302DL_INTMODE_FF_WU_12);
++ }
++}
++
+ #if 0
+ static void _report_btn_single(struct input_dev *inp, int btn)
+ {
+@@ -263,7 +294,7 @@ static ssize_t set_scale(struct device *dev, struct device_attribute *attr,
+ /* Adjust the threshold */
+ lis->threshold = __mg_to_threshold(lis, threshold_mg);
+ if (lis->flags & LIS302DL_F_INPUT_OPEN)
+- __reg_write(lis, LIS302DL_REG_FF_WU_THS_1, lis->threshold);
++ __enable_data_collection(lis);
+
+ local_irq_restore(flags);
+
+@@ -294,8 +325,14 @@ static ssize_t set_threshold(struct device *dev, struct device_attribute *attr,
+
+ /* Set the threshold and write it out if the device is used */
+ lis->threshold = __mg_to_threshold(lis, val);
+- if (lis->flags & LIS302DL_F_INPUT_OPEN)
+- __reg_write(lis, LIS302DL_REG_FF_WU_THS_1, lis->threshold);
++
++ if (lis->flags & LIS302DL_F_INPUT_OPEN) {
++ unsigned long flags;
++
++ local_irq_save(flags);
++ __enable_data_collection(lis);
++ local_irq_restore(flags);
++ }
+
+ return count;
+ }
+@@ -562,29 +599,14 @@ static struct attribute_group lis302dl_attr_group = {
+ };
+
+ /* input device handling and driver core interaction */
+-
+ static int lis302dl_input_open(struct input_dev *inp)
+ {
+ struct lis302dl_info *lis = inp->private;
+- u_int8_t ctrl1 = LIS302DL_CTRL1_PD | LIS302DL_CTRL1_Xen |
+- LIS302DL_CTRL1_Yen | LIS302DL_CTRL1_Zen;
+- u_int8_t ctrl2 = LIS302DL_CTRL2_HPFF1;
+ unsigned long flags;
+
+ local_irq_save(flags);
+- /* make sure we're powered up and generate data ready */
+- __reg_set_bit_mask(lis, LIS302DL_REG_CTRL1, ctrl1, ctrl1);
+-
+- __reg_write(lis, LIS302DL_REG_CTRL2,
+- ctrl2);
+- __reg_write(lis, LIS302DL_REG_FF_WU_THS_1, lis->threshold);
+- __reg_write(lis, LIS302DL_REG_FF_WU_DURATION_1, lis->duration);
+-
+- /* Clear the HP filter "starting point" */
+- __reg_read(lis, LIS302DL_REG_HP_FILTER_RESET);
+- __reg_write(lis, LIS302DL_REG_FF_WU_CFG_1, LIS302DL_FFWUCFG_XHIE |
+- LIS302DL_FFWUCFG_YHIE | LIS302DL_FFWUCFG_ZHIE);
+
++ __enable_data_collection(lis);
+ lis->flags |= LIS302DL_F_INPUT_OPEN;
+
+ /* kick it off -- since we are edge triggered, if we missed the edge
+@@ -736,8 +758,8 @@ static int __devinit lis302dl_probe(struct platform_device *pdev)
+ /* push-pull, active-low */
+ __reg_write(lis, LIS302DL_REG_CTRL3, LIS302DL_CTRL3_IHL);
+
+- __lis302dl_int_mode(lis->dev, 1, LIS302DL_INTMODE_FF_WU_12);
+- __lis302dl_int_mode(lis->dev, 2, LIS302DL_INTMODE_FF_WU_12);
++ __lis302dl_int_mode(lis->dev, 1, LIS302DL_INTMODE_GND);
++ __lis302dl_int_mode(lis->dev, 2, LIS302DL_INTMODE_GND);
+
+ __reg_read(lis, LIS302DL_REG_STATUS);
+ __reg_read(lis, LIS302DL_REG_FF_WU_SRC_1);
+--
+1.5.6.5
+