HWMON: ams - convert to use input-polldev
Switch to using input-polldev skeleton instead of implementing polling
loop by itself.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Acked-by: Michael Hanselmann <linux-kernel@hansmi.ch>
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index f0ab2ac..99c82b1 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -131,6 +131,7 @@
config SENSORS_AMS
tristate "Apple Motion Sensor driver"
depends on PPC_PMAC && !PPC64 && INPUT && ((ADB_PMU && I2C = y) || (ADB_PMU && !I2C) || I2C) && EXPERIMENTAL
+ select INPUT_POLLDEV
help
Support for the motion sensor included in PowerBooks. Includes
implementations for PMU and I2C.
diff --git a/drivers/hwmon/ams/ams-input.c b/drivers/hwmon/ams/ams-input.c
index ca7095d..7b81e0c2 100644
--- a/drivers/hwmon/ams/ams-input.c
+++ b/drivers/hwmon/ams/ams-input.c
@@ -27,47 +27,32 @@
module_param(invert, bool, 0644);
MODULE_PARM_DESC(invert, "Invert input data on X and Y axis");
-static int ams_input_kthread(void *data)
+static void ams_idev_poll(struct input_polled_dev *dev)
{
+ struct input_dev *idev = dev->input;
s8 x, y, z;
- while (!kthread_should_stop()) {
- mutex_lock(&ams_info.lock);
+ mutex_lock(&ams_info.lock);
- ams_sensors(&x, &y, &z);
+ ams_sensors(&x, &y, &z);
- x -= ams_info.xcalib;
- y -= ams_info.ycalib;
- z -= ams_info.zcalib;
+ x -= ams_info.xcalib;
+ y -= ams_info.ycalib;
+ z -= ams_info.zcalib;
- input_report_abs(ams_info.idev, ABS_X, invert ? -x : x);
- input_report_abs(ams_info.idev, ABS_Y, invert ? -y : y);
- input_report_abs(ams_info.idev, ABS_Z, z);
+ input_report_abs(idev, ABS_X, invert ? -x : x);
+ input_report_abs(idev, ABS_Y, invert ? -y : y);
+ input_report_abs(idev, ABS_Z, z);
- input_sync(ams_info.idev);
+ input_sync(idev);
- mutex_unlock(&ams_info.lock);
-
- msleep(25);
- }
-
- return 0;
-}
-
-static int ams_input_open(struct input_dev *dev)
-{
- ams_info.kthread = kthread_run(ams_input_kthread, NULL, "kams");
- return IS_ERR(ams_info.kthread) ? PTR_ERR(ams_info.kthread) : 0;
-}
-
-static void ams_input_close(struct input_dev *dev)
-{
- kthread_stop(ams_info.kthread);
+ mutex_unlock(&ams_info.lock);
}
/* Call with ams_info.lock held! */
static void ams_input_enable(void)
{
+ struct input_dev *input;
s8 x, y, z;
if (ams_info.idev)
@@ -78,27 +63,29 @@
ams_info.ycalib = y;
ams_info.zcalib = z;
- ams_info.idev = input_allocate_device();
+ ams_info.idev = input_allocate_polled_device();
if (!ams_info.idev)
return;
- ams_info.idev->name = "Apple Motion Sensor";
- ams_info.idev->id.bustype = ams_info.bustype;
- ams_info.idev->id.vendor = 0;
- ams_info.idev->open = ams_input_open;
- ams_info.idev->close = ams_input_close;
- ams_info.idev->dev.parent = &ams_info.of_dev->dev;
+ ams_info.idev->poll = ams_idev_poll;
+ ams_info.idev->poll_interval = 25;
- input_set_abs_params(ams_info.idev, ABS_X, -50, 50, 3, 0);
- input_set_abs_params(ams_info.idev, ABS_Y, -50, 50, 3, 0);
- input_set_abs_params(ams_info.idev, ABS_Z, -50, 50, 3, 0);
+ input = ams_info.idev->input;
+ input->name = "Apple Motion Sensor";
+ input->id.bustype = ams_info.bustype;
+ input->id.vendor = 0;
+ input->dev.parent = &ams_info.of_dev->dev;
- set_bit(EV_ABS, ams_info.idev->evbit);
- set_bit(EV_KEY, ams_info.idev->evbit);
- set_bit(BTN_TOUCH, ams_info.idev->keybit);
+ input_set_abs_params(input, ABS_X, -50, 50, 3, 0);
+ input_set_abs_params(input, ABS_Y, -50, 50, 3, 0);
+ input_set_abs_params(input, ABS_Z, -50, 50, 3, 0);
- if (input_register_device(ams_info.idev)) {
- input_free_device(ams_info.idev);
+ set_bit(EV_ABS, input->evbit);
+ set_bit(EV_KEY, input->evbit);
+ set_bit(BTN_TOUCH, input->keybit);
+
+ if (input_register_polled_device(ams_info.idev)) {
+ input_free_polled_device(ams_info.idev);
ams_info.idev = NULL;
return;
}
@@ -108,7 +95,8 @@
static void ams_input_disable(void)
{
if (ams_info.idev) {
- input_unregister_device(ams_info.idev);
+ input_unregister_polled_device(ams_info.idev);
+ input_free_polled_device(ams_info.idev);
ams_info.idev = NULL;
}
}
diff --git a/drivers/hwmon/ams/ams.h b/drivers/hwmon/ams/ams.h
index 240730e..a6221e5 100644
--- a/drivers/hwmon/ams/ams.h
+++ b/drivers/hwmon/ams/ams.h
@@ -1,5 +1,5 @@
#include <linux/i2c.h>
-#include <linux/input.h>
+#include <linux/input-polldev.h>
#include <linux/kthread.h>
#include <linux/mutex.h>
#include <linux/spinlock.h>
@@ -52,8 +52,7 @@
#endif
/* Joystick emulation */
- struct task_struct *kthread;
- struct input_dev *idev;
+ struct input_polled_dev *idev;
__u16 bustype;
/* calibrated null values */