140 lines
4.2 KiB
C
140 lines
4.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Definitions for mma8452 compass chip.
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*/
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#ifndef MMA8452_H
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#define MMA8452_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 MMA8452_REG_STATUS 0x0 //RO
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#define MMA8452_REG_X_OUT_MSB 0x1 //RO
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#define MMA8452_REG_X_OUT_LSB 0x2 //RO
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#define MMA8452_REG_Y_OUT_MSB 0x3 //RO
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#define MMA8452_REG_Y_OUT_LSB 0x4 //RO
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#define MMA8452_REG_Z_OUT_MSB 0x5 //RO
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#define MMA8452_REG_Z_OUT_LSB 0x6 //RO
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#define MMA8452_REG_F_SETUP 0x9 //RW
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#define MMA8452_REG_SYSMOD 0xB //RO
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#define MMA8452_REG_INTSRC 0xC //RO
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#define MMA8452_REG_WHO_AM_I 0xD //RO
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#define MMA8452_REG_XYZ_DATA_CFG 0xE //RW
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#define MMA8452_REG_HP_FILTER_CUTOFF 0xF //RW
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#define MMA8452_REG_PL_STATUS 0x10 //RO
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#define MMA8452_REG_PL_CFG 0x11 //RW
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#define MMA8452_REG_PL_COUNT 0x12 //RW
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#define MMA8452_REG_PL_BF_ZCOMP 0x13 //RW
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#define MMA8452_REG_P_L_THS_REG 0x14 //RW
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#define MMA8452_REG_FF_MT_CFG 0x15 //RW
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#define MMA8452_REG_FF_MT_SRC 0x16 //RO
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#define MMA8452_REG_FF_MT_THS 0x17 //RW
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#define MMA8452_REG_FF_MT_COUNT 0x18 //RW
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#define MMA8452_REG_TRANSIENT_CFG 0x1D //RW
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#define MMA8452_REG_TRANSIENT_SRC 0x1E //RO
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#define MMA8452_REG_TRANSIENT_THS 0x1F //RW
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#define MMA8452_REG_TRANSIENT_COUNT 0x20 //RW
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#define MMA8452_REG_PULSE_CFG 0x21 //RW
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#define MMA8452_REG_PULSE_SRC 0x22 //RO
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#define MMA8452_REG_PULSE_THSX 0x23 //RW
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#define MMA8452_REG_PULSE_THSY 0x24 //RW
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#define MMA8452_REG_PULSE_THSZ 0x25 //RW
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#define MMA8452_REG_PULSE_TMLT 0x26 //RW
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#define MMA8452_REG_PULSE_LTCY 0x27 //RW
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#define MMA8452_REG_PULSE_WIND 0x28 //RW
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#define MMA8452_REG_ASLP_COUNT 0x29 //RW
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#define MMA8452_REG_CTRL_REG1 0x2A //RW
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#define MMA8452_REG_CTRL_REG2 0x2B //RW
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#define MMA8452_REG_CTRL_REG3 0x2C //RW
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#define MMA8452_REG_CTRL_REG4 0x2D //RW
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#define MMA8452_REG_CTRL_REG5 0x2E //RW
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#define MMA8452_REG_OFF_X 0x2F //RW
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#define MMA8452_REG_OFF_Y 0x30 //RW
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#define MMA8452_REG_OFF_Z 0x31 //RW
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#define MMAIO 0xA1
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/* IOCTLs for MMA8452 library */
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#define MMA_IOCTL_INIT _IO(MMAIO, 0x01)
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#define MMA_IOCTL_RESET _IO(MMAIO, 0x04)
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#define MMA_IOCTL_CLOSE _IO(MMAIO, 0x02)
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#define MMA_IOCTL_START _IO(MMAIO, 0x03)
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#define MMA_IOCTL_GETDATA _IOR(MMAIO, 0x08, char[RBUFF_SIZE+1])
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/* IOCTLs for APPs */
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#define MMA_IOCTL_APP_SET_RATE _IOW(MMAIO, 0x10, char)
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/*rate*/
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#define MMA8452_RATE_800 0
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#define MMA8452_RATE_400 1
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#define MMA8452_RATE_200 2
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#define MMA8452_RATE_100 3
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#define MMA8452_RATE_50 4
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#define MMA8452_RATE_12P5 5
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#define MMA8452_RATE_6P25 6
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#define MMA8452_RATE_1P56 7
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#define MMA8452_RATE_SHIFT 3
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#define MMA8452_ASLP_RATE_50 0
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#define MMA8452_ASLP_RATE_12P5 1
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#define MMA8452_ASLP_RATE_6P25 2
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#define MMA8452_ASLP_RATE_1P56 3
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#define MMA8452_ASLP_RATE_SHIFT 6
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/*Auto-adapt mma845x series*/
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/*Modified by Yick @ROCKCHIP
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xieyi@rockchips.com*/
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/*
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Range: unit(ug 1g=1 000 000 ug)
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option(2g,4g,8g)
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G would be defined on android HAL
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Precision: bit wide of valid data
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Boundary: Max positive count
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Gravity_step: gravity value indicated by per count
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*/
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#define FREAD_MASK 0 /* enabled(1<<1) only if reading MSB 8bits*/
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#define MMA845X_RANGE 2000000
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/* mma8451 */
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#define MMA8451_PRECISION 14
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#define MMA8451_BOUNDARY (0x1 << (MMA8451_PRECISION - 1))
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#define MMA8451_GRAVITY_STEP MMA845X_RANGE / MMA8451_BOUNDARY
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/* mma8452 */
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#define MMA8452_PRECISION 12
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#define MMA8452_BOUNDARY (0x1 << (MMA8452_PRECISION - 1))
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#define MMA8452_GRAVITY_STEP MMA845X_RANGE / MMA8452_BOUNDARY
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/* mma8453 */
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#define MMA8453_PRECISION 10
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#define MMA8453_BOUNDARY (0x1 << (MMA8453_PRECISION - 1))
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#define MMA8453_GRAVITY_STEP MMA845X_RANGE / MMA8453_BOUNDARY
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/*End of precision adaption*/
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#define MMA8452_TOTAL_TIME 10
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#define ACTIVE_MASK 1
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/*status*/
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#define MMA8452_SUSPEND 2
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#define MMA8452_OPEN 1
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#define MMA8452_CLOSE 0
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#define MMA8452_REG_LEN 11
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struct mma8452_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/mma8452_daemon"
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#endif
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