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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/iio/pressure/bmp280-regmap.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/iio/pressure/bmp280-regmap.c')
-rw-r--r--drivers/iio/pressure/bmp280-regmap.c140
1 files changed, 140 insertions, 0 deletions
diff --git a/drivers/iio/pressure/bmp280-regmap.c b/drivers/iio/pressure/bmp280-regmap.c
new file mode 100644
index 000000000..c98c67970
--- /dev/null
+++ b/drivers/iio/pressure/bmp280-regmap.c
@@ -0,0 +1,140 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+
+#include "bmp280.h"
+
+static bool bmp180_is_writeable_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case BMP280_REG_CTRL_MEAS:
+ case BMP280_REG_RESET:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool bmp180_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case BMP180_REG_OUT_XLSB:
+ case BMP180_REG_OUT_LSB:
+ case BMP180_REG_OUT_MSB:
+ case BMP280_REG_CTRL_MEAS:
+ return true;
+ default:
+ return false;
+ }
+}
+
+const struct regmap_config bmp180_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .max_register = BMP180_REG_OUT_XLSB,
+ .cache_type = REGCACHE_RBTREE,
+
+ .writeable_reg = bmp180_is_writeable_reg,
+ .volatile_reg = bmp180_is_volatile_reg,
+};
+EXPORT_SYMBOL_NS(bmp180_regmap_config, IIO_BMP280);
+
+static bool bmp280_is_writeable_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case BMP280_REG_CONFIG:
+ case BMP280_REG_CTRL_HUMIDITY:
+ case BMP280_REG_CTRL_MEAS:
+ case BMP280_REG_RESET:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool bmp280_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case BMP280_REG_HUMIDITY_LSB:
+ case BMP280_REG_HUMIDITY_MSB:
+ case BMP280_REG_TEMP_XLSB:
+ case BMP280_REG_TEMP_LSB:
+ case BMP280_REG_TEMP_MSB:
+ case BMP280_REG_PRESS_XLSB:
+ case BMP280_REG_PRESS_LSB:
+ case BMP280_REG_PRESS_MSB:
+ case BMP280_REG_STATUS:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool bmp380_is_writeable_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case BMP380_REG_CMD:
+ case BMP380_REG_CONFIG:
+ case BMP380_REG_FIFO_CONFIG_1:
+ case BMP380_REG_FIFO_CONFIG_2:
+ case BMP380_REG_FIFO_WATERMARK_LSB:
+ case BMP380_REG_FIFO_WATERMARK_MSB:
+ case BMP380_REG_POWER_CONTROL:
+ case BMP380_REG_INT_CONTROL:
+ case BMP380_REG_IF_CONFIG:
+ case BMP380_REG_ODR:
+ case BMP380_REG_OSR:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool bmp380_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case BMP380_REG_TEMP_XLSB:
+ case BMP380_REG_TEMP_LSB:
+ case BMP380_REG_TEMP_MSB:
+ case BMP380_REG_PRESS_XLSB:
+ case BMP380_REG_PRESS_LSB:
+ case BMP380_REG_PRESS_MSB:
+ case BMP380_REG_SENSOR_TIME_XLSB:
+ case BMP380_REG_SENSOR_TIME_LSB:
+ case BMP380_REG_SENSOR_TIME_MSB:
+ case BMP380_REG_INT_STATUS:
+ case BMP380_REG_FIFO_DATA:
+ case BMP380_REG_STATUS:
+ case BMP380_REG_ERROR:
+ case BMP380_REG_EVENT:
+ return true;
+ default:
+ return false;
+ }
+}
+
+const struct regmap_config bmp280_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .max_register = BMP280_REG_HUMIDITY_LSB,
+ .cache_type = REGCACHE_RBTREE,
+
+ .writeable_reg = bmp280_is_writeable_reg,
+ .volatile_reg = bmp280_is_volatile_reg,
+};
+EXPORT_SYMBOL_NS(bmp280_regmap_config, IIO_BMP280);
+
+const struct regmap_config bmp380_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .max_register = BMP380_REG_CMD,
+ .cache_type = REGCACHE_RBTREE,
+
+ .writeable_reg = bmp380_is_writeable_reg,
+ .volatile_reg = bmp380_is_volatile_reg,
+};
+EXPORT_SYMBOL_NS(bmp380_regmap_config, IIO_BMP280);