1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Copyright (C) 2022 ROHM Semiconductors 4 * 5 * ROHM/KIONIX KX022A accelerometer driver 6 */ 7 8 #ifndef _KX022A_H_ 9 #define _KX022A_H_ 10 11 #include <linux/bits.h> 12 #include <linux/regmap.h> 13 14 #define KX022A_REG_WHO 0x0f 15 #define KX022A_ID 0xc8 16 #define KX132ACR_LBZ_ID 0xd8 17 18 #define KX022A_REG_CNTL2 0x19 19 #define KX022A_MASK_SRST BIT(7) 20 #define KX022A_REG_CNTL 0x18 21 #define KX022A_MASK_PC1 BIT(7) 22 #define KX022A_MASK_RES BIT(6) 23 #define KX022A_MASK_DRDY BIT(5) 24 #define KX022A_MASK_GSEL GENMASK(4, 3) 25 #define KX022A_GSEL_SHIFT 3 26 #define KX022A_GSEL_2 0x0 27 #define KX022A_GSEL_4 BIT(3) 28 #define KX022A_GSEL_8 BIT(4) 29 #define KX022A_GSEL_16 GENMASK(4, 3) 30 31 #define KX022A_REG_INS2 0x13 32 #define KX022A_MASK_INS2_DRDY BIT(4) 33 #define KX122_MASK_INS2_WMI BIT(5) 34 35 #define KX022A_REG_XHP_L 0x0 36 #define KX022A_REG_XOUT_L 0x06 37 #define KX022A_REG_YOUT_L 0x08 38 #define KX022A_REG_ZOUT_L 0x0a 39 #define KX022A_REG_COTR 0x0c 40 #define KX022A_REG_TSCP 0x10 41 #define KX022A_REG_INT_REL 0x17 42 43 #define KX022A_REG_ODCNTL 0x1b 44 45 #define KX022A_REG_BTS_WUF_TH 0x31 46 #define KX022A_REG_MAN_WAKE 0x2c 47 48 #define KX022A_REG_BUF_CNTL1 0x3a 49 #define KX022A_MASK_WM_TH GENMASK(6, 0) 50 #define KX022A_REG_BUF_CNTL2 0x3b 51 #define KX022A_MASK_BUF_EN BIT(7) 52 #define KX022A_MASK_BRES16 BIT(6) 53 #define KX022A_REG_BUF_STATUS_1 0x3c 54 #define KX022A_REG_BUF_STATUS_2 0x3d 55 #define KX022A_REG_BUF_CLEAR 0x3e 56 #define KX022A_REG_BUF_READ 0x3f 57 #define KX022A_MASK_ODR GENMASK(3, 0) 58 #define KX022A_ODR_SHIFT 3 59 #define KX022A_FIFO_MAX_WMI_TH 41 60 61 #define KX022A_REG_INC1 0x1c 62 #define KX022A_REG_INC5 0x20 63 #define KX022A_REG_INC6 0x21 64 #define KX022A_MASK_IEN BIT(5) 65 #define KX022A_MASK_IPOL BIT(4) 66 #define KX022A_IPOL_LOW 0 67 #define KX022A_IPOL_HIGH KX022A_MASK_IPOL1 68 #define KX022A_MASK_ITYP BIT(3) 69 #define KX022A_ITYP_PULSE KX022A_MASK_ITYP 70 #define KX022A_ITYP_LEVEL 0 71 72 #define KX022A_REG_INC4 0x1f 73 #define KX022A_MASK_WMI BIT(5) 74 75 #define KX022A_REG_SELF_TEST 0x60 76 #define KX022A_MAX_REGISTER 0x60 77 78 #define KX132_REG_WHO 0x13 79 #define KX132_ID 0x3d 80 81 #define KX132_FIFO_LENGTH 86 82 83 #define KX132_REG_CNTL 0x1b 84 #define KX132_REG_CNTL2 0x1c 85 #define KX132_REG_CNTL5 0x1f 86 #define KX132_MASK_RES BIT(6) 87 #define KX132_GSEL_2 0x0 88 #define KX132_GSEL_4 BIT(3) 89 #define KX132_GSEL_8 BIT(4) 90 #define KX132_GSEL_16 GENMASK(4, 3) 91 92 #define KX132_REG_INS2 0x17 93 #define KX132_MASK_INS2_WMI BIT(5) 94 95 #define KX132_REG_XADP_L 0x02 96 #define KX132_REG_XOUT_L 0x08 97 #define KX132_REG_YOUT_L 0x0a 98 #define KX132_REG_ZOUT_L 0x0c 99 #define KX132_REG_COTR 0x12 100 #define KX132_REG_TSCP 0x14 101 #define KX132_REG_INT_REL 0x1a 102 103 #define KX132_REG_ODCNTL 0x21 104 105 #define KX132_REG_BTS_WUF_TH 0x4a 106 107 #define KX132_REG_BUF_CNTL1 0x5e 108 #define KX132_REG_BUF_CNTL2 0x5f 109 #define KX132_REG_BUF_STATUS_1 0x60 110 #define KX132_REG_BUF_STATUS_2 0x61 111 #define KX132_MASK_BUF_SMP_LVL GENMASK(9, 0) 112 #define KX132_REG_BUF_CLEAR 0x62 113 #define KX132_REG_BUF_READ 0x63 114 #define KX132_ODR_SHIFT 3 115 #define KX132_FIFO_MAX_WMI_TH 86 116 117 #define KX132_REG_INC1 0x22 118 #define KX132_REG_INC5 0x26 119 #define KX132_REG_INC6 0x27 120 #define KX132_IPOL_LOW 0 121 #define KX132_IPOL_HIGH KX022A_MASK_IPOL 122 #define KX132_ITYP_PULSE KX022A_MASK_ITYP 123 124 #define KX132_REG_INC4 0x25 125 126 #define KX132_REG_SELF_TEST 0x5d 127 #define KX132_MAX_REGISTER 0x76 128 129 struct device; 130 131 struct kx022a_data; 132 133 /** 134 * struct kx022a_chip_info - Kionix accelerometer chip specific information 135 * 136 * @name: name of the device 137 * @regmap_config: pointer to register map configuration 138 * @channels: pointer to iio_chan_spec array 139 * @num_channels: number of iio_chan_spec channels 140 * @fifo_length: number of 16-bit samples in a full buffer 141 * @buf_smp_lvl_mask: buffer sample level mask 142 * @who: WHO_AM_I register 143 * @id: WHO_AM_I register value 144 * @cntl: control register 1 145 * @cntl2: control register 2 146 * @odcntl: output data control register 147 * @buf_cntl1: buffer control register 1 148 * @buf_cntl2: buffer control register 2 149 * @buf_clear: buffer clear register 150 * @buf_status1: buffer status register 1 151 * @buf_read: buffer read register 152 * @inc1: interrupt control register 1 153 * @inc4: interrupt control register 4 154 * @inc5: interrupt control register 5 155 * @inc6: interrupt control register 6 156 * @xout_l: x-axis output least significant byte 157 * @get_fifo_bytes_available: function pointer to get amount of acceleration 158 * data bytes currently stored in the sensor's FIFO 159 * buffer 160 */ 161 struct kx022a_chip_info { 162 const char *name; 163 const struct regmap_config *regmap_config; 164 const struct iio_chan_spec *channels; 165 unsigned int num_channels; 166 unsigned int fifo_length; 167 u16 buf_smp_lvl_mask; 168 u8 who; 169 u8 id; 170 u8 cntl; 171 u8 cntl2; 172 u8 odcntl; 173 u8 buf_cntl1; 174 u8 buf_cntl2; 175 u8 buf_clear; 176 u8 buf_status1; 177 u8 buf_read; 178 u8 inc1; 179 u8 inc4; 180 u8 inc5; 181 u8 inc6; 182 u8 xout_l; 183 int (*get_fifo_bytes_available)(struct kx022a_data *); 184 }; 185 186 int kx022a_probe_internal(struct device *dev, const struct kx022a_chip_info *chip_info); 187 188 extern const struct kx022a_chip_info kx022a_chip_info; 189 extern const struct kx022a_chip_info kx132_chip_info; 190 extern const struct kx022a_chip_info kx132acr_chip_info; 191 192 #endif 193