95 lines
2.1 KiB
C
95 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Definitions for mma7660 compass chip.
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*/
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#ifndef MMA7660_H
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#define MMA7660_H
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#include <linux/ioctl.h>
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/* Default register settings */
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#define RBUFF_SIZE 12 /* Rx buffer size */
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#define MMA7660_REG_X_OUT 0x0
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#define MMA7660_REG_Y_OUT 0x1
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#define MMA7660_REG_Z_OUT 0x2
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#define MMA7660_REG_TILT 0x3
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#define MMA7660_REG_SRST 0x4
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#define MMA7660_REG_SPCNT 0x5
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#define MMA7660_REG_INTSU 0x6
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#define MMA7660_REG_MODE 0x7
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#define MMA7660_REG_SR 0x8
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#define MMA7660_REG_PDET 0x9
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#define MMA7660_REG_PD 0xa
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#define MMAIO 0xA1
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/* IOCTLs for MMA7660 library */
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#define ECS_IOCTL_INIT _IO(MMAIO, 0x01)
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#define ECS_IOCTL_RESET _IO(MMAIO, 0x04)
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#define ECS_IOCTL_CLOSE _IO(MMAIO, 0x02)
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#define ECS_IOCTL_START _IO(MMAIO, 0x03)
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#define ECS_IOCTL_GETDATA _IOR(MMAIO, 0x08, char[RBUFF_SIZE+1])
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/* IOCTLs for APPs */
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#define ECS_IOCTL_APP_SET_RATE _IOW(MMAIO, 0x10, char)
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/*rate*/
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#define MMA7660_RATE_1 1
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#define MMA7660_RATE_2 2
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#define MMA7660_RATE_4 4
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#define MMA7660_RATE_8 8
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#define MMA7660_RATE_16 16
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#define MMA7660_RATE_32 32
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#define MMA7660_RATE_64 64
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#define MMA7660_RATE_120 128
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/*status*/
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#define MMA7660_OPEN 1
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#define MMA7660_CLOSE 0
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#define MMA7660_IIC_ADDR 0x98
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#define MMA7660_REG_LEN 11
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#define MMA7660_RANGE 2000000
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#define MMA7660_PRECISION 6
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#define MMA7660_BOUNDARY (0x1 << (MMA7660_PRECISION - 1))
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#define MMA7660_GRAVITY_STEP MMA7660_RANGE/MMA7660_BOUNDARY
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#define MMA7660_TOTAL_TIME 10
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struct mma7660_platform_data {
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int reset;
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int clk_on;
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int intr;
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};
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struct mma7660_data {
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char status;
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char curr_tate;
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struct input_dev *input_dev;
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struct i2c_client *client;
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struct work_struct work;
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struct delayed_work delaywork; /*report second event*/
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};
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struct mma7660_axis {
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int x;
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int y;
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int z;
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};
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#define GSENSOR_DEV_PATH "/dev/mma7660_daemon"
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#endif
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