1 // SPDX-License-Identifier: GPL-2.0 2 #include <linux/device.h> 3 #include <linux/module.h> 4 #include <linux/regmap.h> 5 6 #include "bmp280.h" 7 8 static bool bmp180_is_writeable_reg(struct device *dev, unsigned int reg) 9 { 10 switch (reg) { 11 case BMP280_REG_CTRL_MEAS: 12 case BMP280_REG_RESET: 13 return true; 14 default: 15 return false; 16 } 17 } 18 19 static bool bmp180_is_volatile_reg(struct device *dev, unsigned int reg) 20 { 21 switch (reg) { 22 case BMP180_REG_OUT_XLSB: 23 case BMP180_REG_OUT_LSB: 24 case BMP180_REG_OUT_MSB: 25 case BMP280_REG_CTRL_MEAS: 26 return true; 27 default: 28 return false; 29 } 30 } 31 32 const struct regmap_config bmp180_regmap_config = { 33 .reg_bits = 8, 34 .val_bits = 8, 35 36 .max_register = BMP180_REG_OUT_XLSB, 37 .cache_type = REGCACHE_RBTREE, 38 39 .writeable_reg = bmp180_is_writeable_reg, 40 .volatile_reg = bmp180_is_volatile_reg, 41 }; 42 EXPORT_SYMBOL_NS(bmp180_regmap_config, IIO_BMP280); 43 44 static bool bmp280_is_writeable_reg(struct device *dev, unsigned int reg) 45 { 46 switch (reg) { 47 case BMP280_REG_CONFIG: 48 case BMP280_REG_CTRL_HUMIDITY: 49 case BMP280_REG_CTRL_MEAS: 50 case BMP280_REG_RESET: 51 return true; 52 default: 53 return false; 54 } 55 } 56 57 static bool bmp280_is_volatile_reg(struct device *dev, unsigned int reg) 58 { 59 switch (reg) { 60 case BMP280_REG_HUMIDITY_LSB: 61 case BMP280_REG_HUMIDITY_MSB: 62 case BMP280_REG_TEMP_XLSB: 63 case BMP280_REG_TEMP_LSB: 64 case BMP280_REG_TEMP_MSB: 65 case BMP280_REG_PRESS_XLSB: 66 case BMP280_REG_PRESS_LSB: 67 case BMP280_REG_PRESS_MSB: 68 case BMP280_REG_STATUS: 69 return true; 70 default: 71 return false; 72 } 73 } 74 75 static bool bmp380_is_writeable_reg(struct device *dev, unsigned int reg) 76 { 77 switch (reg) { 78 case BMP380_REG_CMD: 79 case BMP380_REG_CONFIG: 80 case BMP380_REG_FIFO_CONFIG_1: 81 case BMP380_REG_FIFO_CONFIG_2: 82 case BMP380_REG_FIFO_WATERMARK_LSB: 83 case BMP380_REG_FIFO_WATERMARK_MSB: 84 case BMP380_REG_POWER_CONTROL: 85 case BMP380_REG_INT_CONTROL: 86 case BMP380_REG_IF_CONFIG: 87 case BMP380_REG_ODR: 88 case BMP380_REG_OSR: 89 return true; 90 default: 91 return false; 92 } 93 } 94 95 static bool bmp380_is_volatile_reg(struct device *dev, unsigned int reg) 96 { 97 switch (reg) { 98 case BMP380_REG_TEMP_XLSB: 99 case BMP380_REG_TEMP_LSB: 100 case BMP380_REG_TEMP_MSB: 101 case BMP380_REG_PRESS_XLSB: 102 case BMP380_REG_PRESS_LSB: 103 case BMP380_REG_PRESS_MSB: 104 case BMP380_REG_SENSOR_TIME_XLSB: 105 case BMP380_REG_SENSOR_TIME_LSB: 106 case BMP380_REG_SENSOR_TIME_MSB: 107 case BMP380_REG_INT_STATUS: 108 case BMP380_REG_FIFO_DATA: 109 case BMP380_REG_STATUS: 110 case BMP380_REG_ERROR: 111 case BMP380_REG_EVENT: 112 return true; 113 default: 114 return false; 115 } 116 } 117 118 static bool bmp580_is_writeable_reg(struct device *dev, unsigned int reg) 119 { 120 switch (reg) { 121 case BMP580_REG_NVM_DATA_MSB: 122 case BMP580_REG_NVM_DATA_LSB: 123 case BMP580_REG_NVM_ADDR: 124 case BMP580_REG_ODR_CONFIG: 125 case BMP580_REG_OSR_CONFIG: 126 case BMP580_REG_INT_SOURCE: 127 case BMP580_REG_INT_CONFIG: 128 case BMP580_REG_OOR_THR_MSB: 129 case BMP580_REG_OOR_THR_LSB: 130 case BMP580_REG_OOR_CONFIG: 131 case BMP580_REG_OOR_RANGE: 132 case BMP580_REG_IF_CONFIG: 133 case BMP580_REG_FIFO_CONFIG: 134 case BMP580_REG_FIFO_SEL: 135 case BMP580_REG_DSP_CONFIG: 136 case BMP580_REG_DSP_IIR: 137 case BMP580_REG_CMD: 138 return true; 139 default: 140 return false; 141 } 142 } 143 144 static bool bmp580_is_volatile_reg(struct device *dev, unsigned int reg) 145 { 146 switch (reg) { 147 case BMP580_REG_NVM_DATA_MSB: 148 case BMP580_REG_NVM_DATA_LSB: 149 case BMP580_REG_FIFO_COUNT: 150 case BMP580_REG_INT_STATUS: 151 case BMP580_REG_PRESS_XLSB: 152 case BMP580_REG_PRESS_LSB: 153 case BMP580_REG_PRESS_MSB: 154 case BMP580_REG_FIFO_DATA: 155 case BMP580_REG_TEMP_XLSB: 156 case BMP580_REG_TEMP_LSB: 157 case BMP580_REG_TEMP_MSB: 158 case BMP580_REG_EFF_OSR: 159 case BMP580_REG_STATUS: 160 return true; 161 default: 162 return false; 163 } 164 } 165 166 const struct regmap_config bmp280_regmap_config = { 167 .reg_bits = 8, 168 .val_bits = 8, 169 170 .max_register = BMP280_REG_HUMIDITY_LSB, 171 .cache_type = REGCACHE_RBTREE, 172 173 .writeable_reg = bmp280_is_writeable_reg, 174 .volatile_reg = bmp280_is_volatile_reg, 175 }; 176 EXPORT_SYMBOL_NS(bmp280_regmap_config, IIO_BMP280); 177 178 const struct regmap_config bmp380_regmap_config = { 179 .reg_bits = 8, 180 .val_bits = 8, 181 182 .max_register = BMP380_REG_CMD, 183 .cache_type = REGCACHE_RBTREE, 184 185 .writeable_reg = bmp380_is_writeable_reg, 186 .volatile_reg = bmp380_is_volatile_reg, 187 }; 188 EXPORT_SYMBOL_NS(bmp380_regmap_config, IIO_BMP280); 189 190 const struct regmap_config bmp580_regmap_config = { 191 .reg_bits = 8, 192 .val_bits = 8, 193 194 .max_register = BMP580_REG_CMD, 195 .cache_type = REGCACHE_RBTREE, 196 197 .writeable_reg = bmp580_is_writeable_reg, 198 .volatile_reg = bmp580_is_volatile_reg, 199 }; 200 EXPORT_SYMBOL_NS(bmp580_regmap_config, IIO_BMP280); 201