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path: root/drivers/hwmon/lis3lv02d.h
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Diffstat (limited to 'drivers/hwmon/lis3lv02d.h')
-rw-r--r--drivers/hwmon/lis3lv02d.h35
1 files changed, 34 insertions, 1 deletions
diff --git a/drivers/hwmon/lis3lv02d.h b/drivers/hwmon/lis3lv02d.h
index 330cfc60e948..223f1c0763bb 100644
--- a/drivers/hwmon/lis3lv02d.h
+++ b/drivers/hwmon/lis3lv02d.h
@@ -23,7 +23,7 @@
* The actual chip is STMicroelectronics LIS3LV02DL or LIS3LV02DQ that seems to
* be connected via SPI. There exists also several similar chips (such as LIS302DL or
* LIS3L02DQ) but not in the HP laptops and they have slightly different registers.
- * They can also be connected via I²C.
+ * They can also be connected via I²C.
*/
#define LIS3LV02DL_ID 0x3A /* Also the LIS3LV02DQ */
@@ -147,3 +147,36 @@ enum lis3lv02d_dd_src {
DD_SRC_IA = 0x40,
};
+struct axis_conversion {
+ s8 x;
+ s8 y;
+ s8 z;
+};
+
+struct acpi_lis3lv02d {
+ struct acpi_device *device; /* The ACPI device */
+ acpi_status (*init) (acpi_handle handle);
+ acpi_status (*write) (acpi_handle handle, int reg, u8 val);
+ acpi_status (*read) (acpi_handle handle, int reg, u8 *ret);
+
+ struct input_dev *idev; /* input device */
+ struct task_struct *kthread; /* kthread for input */
+ struct mutex lock;
+ struct platform_device *pdev; /* platform device */
+ atomic_t count; /* interrupt count after last read */
+ int xcalib; /* calibrated null value for x */
+ int ycalib; /* calibrated null value for y */
+ int zcalib; /* calibrated null value for z */
+ unsigned char is_on; /* whether the device is on or off */
+ unsigned char usage; /* usage counter */
+ struct axis_conversion ac; /* hw -> logical axis */
+};
+
+int lis3lv02d_init_device(struct acpi_lis3lv02d *dev);
+int lis3lv02d_joystick_enable(void);
+void lis3lv02d_joystick_disable(void);
+void lis3lv02d_poweroff(acpi_handle handle);
+void lis3lv02d_poweron(acpi_handle handle);
+int lis3lv02d_remove_fs(void);
+
+extern struct acpi_lis3lv02d adev;