1 /* 2 * Definitions for akm8976 compass chip. 3 */ 4 #ifndef AKM8976_H 5 #define AKM8976_H 6 7 #include <linux/ioctl.h> 8 9 /* Compass device dependent definition */ 10 #define AKECS_MODE_MEASURE 0x00 /* Starts measurement. Please use AKECS_MODE_MEASURE_SNG */ 11 /* or AKECS_MODE_MEASURE_SEQ instead of this. */ 12 #define AKECS_MODE_PFFD 0x01 /* Start pedometer and free fall detect. */ 13 #define AKECS_MODE_E2P_READ 0x02 /* E2P access mode (read). */ 14 #define AKECS_MODE_POWERDOWN 0x03 /* Power down mode */ 15 16 #define AKECS_MODE_MEASURE_SNG 0x10 /* Starts single measurement */ 17 #define AKECS_MODE_MEASURE_SEQ 0x11 /* Starts sequential measurement */ 18 19 /* Default register settings */ 20 #define CSPEC_AINT 0x01 /* Amplification for acceleration sensor */ 21 #define CSPEC_SNG_NUM 0x01 /* Single measurement mode */ 22 #define CSPEC_SEQ_NUM 0x02 /* Sequential measurement mode */ 23 #define CSPEC_SFRQ_32 0x00 /* Measurement frequency: 32Hz */ 24 #define CSPEC_SFRQ_64 0x01 /* Measurement frequency: 64Hz */ 25 #define CSPEC_MCS 0x07 /* Clock frequency */ 26 #define CSPEC_MKS 0x01 /* Clock type: CMOS level */ 27 #define CSPEC_INTEN 0x01 /* Interruption pin enable: Enable */ 28 29 #define RBUFF_SIZE 31 /* Rx buffer size */ 30 #define MAX_CALI_SIZE 0x1000U /* calibration buffer size */ 31 32 /* AK8976A register address */ 33 #define AKECS_REG_ST 0xC0 34 #define AKECS_REG_TMPS 0xC1 35 #define AKECS_REG_MS1 0xE0 36 #define AKECS_REG_MS2 0xE1 37 #define AKECS_REG_MS3 0xE2 38 39 #define AKMIO 0xA1 40 41 /* IOCTLs for AKM library */ 42 #define ECS_IOCTL_INIT _IO(AKMIO, 0x01) 43 #define ECS_IOCTL_WRITE _IOW(AKMIO, 0x02, char[5]) 44 #define ECS_IOCTL_READ _IOWR(AKMIO, 0x03, char[5]) 45 #define ECS_IOCTL_RESET _IO(AKMIO, 0x04) 46 #define ECS_IOCTL_INT_STATUS _IO(AKMIO, 0x05) 47 #define ECS_IOCTL_FFD_STATUS _IO(AKMIO, 0x06) 48 #define ECS_IOCTL_SET_MODE _IOW(AKMIO, 0x07, short) 49 #define ECS_IOCTL_GETDATA _IOR(AKMIO, 0x08, char[RBUFF_SIZE+1]) 50 #define ECS_IOCTL_GET_NUMFRQ _IOR(AKMIO, 0x09, char[2]) 51 #define ECS_IOCTL_SET_PERST _IO(AKMIO, 0x0A) 52 #define ECS_IOCTL_SET_G0RST _IO(AKMIO, 0x0B) 53 #define ECS_IOCTL_SET_YPR _IOW(AKMIO, 0x0C, short[12]) 54 #define ECS_IOCTL_GET_OPEN_STATUS _IOR(AKMIO, 0x0D, int) 55 #define ECS_IOCTL_GET_CLOSE_STATUS _IOR(AKMIO, 0x0E, int) 56 #define ECS_IOCTL_GET_CALI_DATA _IOR(AKMIO, 0x0F, char[MAX_CALI_SIZE]) 57 #define ECS_IOCTL_GET_DELAY _IOR(AKMIO, 0x30, short) 58 59 /* IOCTLs for APPs */ 60 #define ECS_IOCTL_APP_SET_MODE _IOW(AKMIO, 0x10, short) 61 #define ECS_IOCTL_APP_SET_MFLAG _IOW(AKMIO, 0x11, short) 62 #define ECS_IOCTL_APP_GET_MFLAG _IOW(AKMIO, 0x12, short) 63 #define ECS_IOCTL_APP_SET_AFLAG _IOW(AKMIO, 0x13, short) 64 #define ECS_IOCTL_APP_GET_AFLAG _IOR(AKMIO, 0x14, short) 65 #define ECS_IOCTL_APP_SET_TFLAG _IOR(AKMIO, 0x15, short) 66 #define ECS_IOCTL_APP_GET_TFLAG _IOR(AKMIO, 0x16, short) 67 #define ECS_IOCTL_APP_RESET_PEDOMETER _IO(AKMIO, 0x17) 68 #define ECS_IOCTL_APP_SET_DELAY _IOW(AKMIO, 0x18, short) 69 #define ECS_IOCTL_APP_GET_DELAY ECS_IOCTL_GET_DELAY 70 #define ECS_IOCTL_APP_SET_MVFLAG _IOW(AKMIO, 0x19, short) /* Set raw magnetic vector flag */ 71 #define ECS_IOCTL_APP_GET_MVFLAG _IOR(AKMIO, 0x1A, short) /* Get raw magnetic vector flag */ 72 73 /* IOCTLs for pedometer */ 74 #define ECS_IOCTL_SET_STEP_CNT _IOW(AKMIO, 0x20, short) 75 76 /* Default GPIO setting */ 77 #define ECS_RST 146 /*MISC4, bit2 */ 78 #define ECS_CLK_ON 155 /*MISC5, bit3 */ 79 #define ECS_INTR 161 /*INT2, bit1 */ 80 81 struct akm8976_platform_data { 82 int reset; 83 int clk_on; 84 int intr; 85 }; 86 extern char *get_akm_cal_ram(void); 87 88 #endif 89 90