/*
* 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.
+ * LIS3L02DQ) and they have slightly different registers, but we can provide a
+ * common interface for all of them.
* They can also be connected via I²C.
*/
-#define LIS3LV02DL_ID 0x3A /* Also the LIS3LV02DQ */
-#define LIS302DL_ID 0x3B /* Also the LIS202DL! */
+/* 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 {
WHO_AM_I = 0x0F,
STATUS_REG = 0x27,
OUTX_L = 0x28,
OUTX_H = 0x29,
+ OUTX = 0x29,
OUTY_L = 0x2A,
OUTY_H = 0x2B,
+ OUTY = 0x2B,
OUTZ_L = 0x2C,
OUTZ_H = 0x2D,
+ OUTZ = 0x2D,
FF_WU_CFG = 0x30,
FF_WU_SRC = 0x31,
FF_WU_ACK = 0x32,
acpi_status (*write) (acpi_handle handle, int reg, u8 val);
acpi_status (*read) (acpi_handle handle, int reg, u8 *ret);
+ u8 whoami; /* 3Ah: 2-byte registries, 3Bh: 1-byte registries */
+ s16 (*read_data) (acpi_handle handle, int reg);
+ int mdps_max_val;
+
struct input_dev *idev; /* input device */
struct task_struct *kthread; /* kthread for input */
struct mutex lock;
unsigned char is_on; /* whether the device is on or off */
unsigned char usage; /* usage counter */
struct axis_conversion ac; /* hw -> logical axis */
+
+ u32 irq; /* IRQ number */
+ 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 */
};
int lis3lv02d_init_device(struct acpi_lis3lv02d *dev);