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Date: Sun, 29 Jan 2023 02:33:07 +0100
From: Angel Iglesias <ang.iglesiasg@...il.com>
To: linux-iio@...r.kernel.org
Cc: Angel Iglesias <ang.iglesiasg@...il.com>,
Jonathan Cameron <jic23@...nel.org>,
Lars-Peter Clausen <lars@...afoo.de>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Andreas Klinger <ak@...klinger.de>, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v3 5/7] iio: pressure: bmp280: Add support for new sensor BMP580
Adds compatibility with the new sensor generation, the BMP580.
The measurement and initialization codepaths are adapted from
the device datasheet and the repository from manufacturer at
https://github.com/boschsensortec/BMP5-Sensor-API.
Signed-off-by: Angel Iglesias <ang.iglesiasg@...il.com>
diff --git a/drivers/iio/pressure/Kconfig b/drivers/iio/pressure/Kconfig
index cec4b429cd64..02b97e89de50 100644
--- a/drivers/iio/pressure/Kconfig
+++ b/drivers/iio/pressure/Kconfig
@@ -17,14 +17,14 @@ config ABP060MG
will be called abp060mg.
config BMP280
- tristate "Bosch Sensortec BMP180/BMP280/BMP380 pressure sensor driver"
+ tristate "Bosch Sensortec BMP180/BMP280/BMP380/BMP580 pressure sensor driver"
depends on (I2C || SPI_MASTER)
select REGMAP
select BMP280_I2C if (I2C)
select BMP280_SPI if (SPI_MASTER)
help
- Say yes here to build support for Bosch Sensortec BMP180, BMP280 and
- BMP380 pressure and temperature sensors. Also supports the BME280 with
+ Say yes here to build support for Bosch Sensortec BMP180, BMP280, BMP380
+ and BMP580 pressure and temperature sensors. Also supports the BME280 with
an additional humidity sensor channel.
To compile this driver as a module, choose M here: the core module
diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c
index 22addaaa5393..c65fb4025ad9 100644
--- a/drivers/iio/pressure/bmp280-core.c
+++ b/drivers/iio/pressure/bmp280-core.c
@@ -13,6 +13,7 @@
* https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bmp280-ds001.pdf
* https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bme280-ds002.pdf
* https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bmp388-ds001.pdf
+ * https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bmp581-ds004.pdf
*
* Notice:
* The link to the bmp180 datasheet points to an outdated version missing these changes:
@@ -71,6 +72,41 @@ enum bmp380_odr {
BMP380_ODR_0_0015HZ,
};
+enum bmp580_odr {
+ BMP580_ODR_240HZ,
+ BMP580_ODR_218HZ,
+ BMP580_ODR_199HZ,
+ BMP580_ODR_179HZ,
+ BMP580_ODR_160HZ,
+ BMP580_ODR_149HZ,
+ BMP580_ODR_140HZ,
+ BMP580_ODR_129HZ,
+ BMP580_ODR_120HZ,
+ BMP580_ODR_110HZ,
+ BMP580_ODR_100HZ,
+ BMP580_ODR_89HZ,
+ BMP580_ODR_80HZ,
+ BMP580_ODR_70HZ,
+ BMP580_ODR_60HZ,
+ BMP580_ODR_50HZ,
+ BMP580_ODR_45HZ,
+ BMP580_ODR_40HZ,
+ BMP580_ODR_35HZ,
+ BMP580_ODR_30HZ,
+ BMP580_ODR_25HZ,
+ BMP580_ODR_20HZ,
+ BMP580_ODR_15HZ,
+ BMP580_ODR_10HZ,
+ BMP580_ODR_5HZ,
+ BMP580_ODR_4HZ,
+ BMP580_ODR_3HZ,
+ BMP580_ODR_2HZ,
+ BMP580_ODR_1HZ,
+ BMP580_ODR_0_5HZ,
+ BMP580_ODR_0_25HZ,
+ BMP580_ODR_0_125HZ,
+};
+
/*
* These enums are used for indexing into the array of compensation
* parameters for BMP280.
@@ -1216,6 +1252,303 @@ const struct bmp280_chip_info bmp380_chip_info = {
};
EXPORT_SYMBOL_NS(bmp380_chip_info, IIO_BMP280);
+/*
+ * BMP5xx soft reset procedure
+ */
+static int bmp580_soft_reset(struct bmp280_data *data)
+{
+ unsigned int reg;
+ int ret;
+
+ /* Write reset word to CMD register */
+ ret = regmap_write(data->regmap, BMP580_REG_CMD, BMP580_CMD_SOFT_RESET);
+ if (ret) {
+ dev_err(data->dev, "failed to send reset command to device\n");
+ return ret;
+ }
+ /* Wait 2ms for reset completion */
+ usleep_range(2000, 2500);
+
+ /* Dummy read of chip_id */
+ ret = regmap_read(data->regmap, BMP580_REG_CHIP_ID, ®);
+ if (ret) {
+ dev_err(data->dev, "failed to reestablish comms after reset\n");
+ return ret;
+ }
+
+ /* Check if POR bit is set on interrupt reg */
+ ret = regmap_read(data->regmap, BMP580_REG_INT_STATUS, ®);
+ if (ret) {
+ dev_err(data->dev, "error reading interrupt status register\n");
+ return ret;
+ }
+ if (!(reg & BMP580_INT_STATUS_POR_MASK)) {
+ dev_err(data->dev, "error resetting sensor\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/*
+ * Contrary to previous sensors families, compensation algorithm is builtin.
+ * We are only required to read the register raw data and adapt the ranges
+ * for what is expected on IIO ABI.
+ */
+
+static int bmp580_read_temp(struct bmp280_data *data, int *val)
+{
+ s32 raw_temp;
+ int ret;
+
+ ret = regmap_bulk_read(data->regmap, BMP580_REG_TEMP_XLSB, data->buf,
+ sizeof(data->buf));
+ if (ret) {
+ dev_err(data->dev, "failed to read temperature\n");
+ return ret;
+ }
+
+ raw_temp = get_unaligned_le24(data->buf);
+ if (raw_temp == BMP580_TEMP_SKIPPED) {
+ dev_err(data->dev, "reading temperature skipped\n");
+ return -EIO;
+ }
+
+ /*
+ * Temperature is returned in Celsius degrees in fractional
+ * form down 2^16. We reescale by x1000 to return milli Celsius
+ * to respect IIO ABI.
+ */
+ *val = (raw_temp * 1000) >> 16;
+ return IIO_VAL_INT;
+}
+
+static int bmp580_read_press(struct bmp280_data *data, int *val, int *val2)
+{
+ u32 raw_press;
+ int ret;
+
+ ret = regmap_bulk_read(data->regmap, BMP580_REG_PRESS_XLSB, data->buf,
+ sizeof(data->buf));
+ if (ret) {
+ dev_err(data->dev, "failed to read pressure\n");
+ return ret;
+ }
+
+ raw_press = get_unaligned_le24(data->buf);
+ if (raw_press == BMP580_PRESS_SKIPPED) {
+ dev_err(data->dev, "reading pressure skipped\n");
+ return -EIO;
+ }
+ /*
+ * Pressure is returned in Pascals in fractional form down 2^16.
+ * We reescale /1000 to convert to kilopascal to respect IIO ABI.
+ */
+ *val = raw_press;
+ *val2 = 64000; /* 2^6 * 1000 */
+ return IIO_VAL_FRACTIONAL;
+}
+
+static const int bmp580_odr_table[][2] = {
+ [BMP580_ODR_240HZ] = {240, 0},
+ [BMP580_ODR_218HZ] = {218, 0},
+ [BMP580_ODR_199HZ] = {199, 0},
+ [BMP580_ODR_179HZ] = {179, 0},
+ [BMP580_ODR_160HZ] = {160, 0},
+ [BMP580_ODR_149HZ] = {149, 0},
+ [BMP580_ODR_140HZ] = {140, 0},
+ [BMP580_ODR_129HZ] = {129, 0},
+ [BMP580_ODR_120HZ] = {120, 0},
+ [BMP580_ODR_110HZ] = {110, 0},
+ [BMP580_ODR_100HZ] = {100, 0},
+ [BMP580_ODR_89HZ] = {89, 0},
+ [BMP580_ODR_80HZ] = {80, 0},
+ [BMP580_ODR_70HZ] = {70, 0},
+ [BMP580_ODR_60HZ] = {60, 0},
+ [BMP580_ODR_50HZ] = {50, 0},
+ [BMP580_ODR_45HZ] = {45, 0},
+ [BMP580_ODR_40HZ] = {40, 0},
+ [BMP580_ODR_35HZ] = {35, 0},
+ [BMP580_ODR_30HZ] = {30, 0},
+ [BMP580_ODR_25HZ] = {25, 0},
+ [BMP580_ODR_20HZ] = {20, 0},
+ [BMP580_ODR_15HZ] = {15, 0},
+ [BMP580_ODR_10HZ] = {10, 0},
+ [BMP580_ODR_5HZ] = {5, 0},
+ [BMP580_ODR_4HZ] = {4, 0},
+ [BMP580_ODR_3HZ] = {3, 0},
+ [BMP580_ODR_2HZ] = {2, 0},
+ [BMP580_ODR_1HZ] = {1, 0},
+ [BMP580_ODR_0_5HZ] = {0, 500000},
+ [BMP580_ODR_0_25HZ] = {0, 250000},
+ [BMP580_ODR_0_125HZ] = {0, 125000},
+};
+
+static int bmp580_preinit(struct bmp280_data *data)
+{
+ unsigned int reg;
+ int ret;
+
+ /* Issue soft-reset command */
+ ret = bmp580_soft_reset(data);
+ if (ret)
+ return ret;
+
+ /* Post powerup sequence */
+ ret = regmap_read(data->regmap, BMP580_REG_CHIP_ID, ®);
+ if (ret)
+ return ret;
+
+ /* Print warn message if we don't know the chip id */
+ if (reg != BMP580_CHIP_ID && reg != BMP580_CHIP_ID_ALT)
+ dev_warn(data->dev, "preinit: unexpected chip_id\n");
+
+ ret = regmap_read(data->regmap, BMP580_REG_STATUS, ®);
+ if (ret)
+ return ret;
+
+ /* Check nvm status */
+ if (!(reg & BMP580_STATUS_NVM_RDY_MASK) || (reg & BMP580_STATUS_NVM_ERR_MASK)) {
+ dev_err(data->dev, "preinit: nvm error on powerup sequence\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int bmp580_chip_config(struct bmp280_data *data)
+{
+ bool change = false, aux;
+ unsigned int tmp;
+ u8 reg_val;
+ int ret;
+
+ /* Sets sensor in standby mode */
+ ret = regmap_update_bits(data->regmap, BMP580_REG_ODR_CONFIG,
+ BMP580_MODE_MASK | BMP580_ODR_DEEPSLEEP_DIS,
+ BMP580_ODR_DEEPSLEEP_DIS |
+ FIELD_PREP(BMP580_MODE_MASK, BMP580_MODE_SLEEP));
+ if (ret) {
+ dev_err(data->dev, "failed to change sensor to standby mode\n");
+ return ret;
+ }
+ /* From datasheet's table 4: electrical characteristics */
+ usleep_range(2500, 3000);
+
+ /* Set default DSP mode settings */
+ reg_val = FIELD_PREP(BMP580_DSP_COMP_MASK, BMP580_DSP_PRESS_TEMP_COMP_EN) |
+ BMP580_DSP_SHDW_IIR_TEMP_EN | BMP580_DSP_SHDW_IIR_PRESS_EN;
+
+ ret = regmap_update_bits(data->regmap, BMP580_REG_DSP_CONFIG,
+ BMP580_DSP_COMP_MASK |
+ BMP580_DSP_SHDW_IIR_TEMP_EN |
+ BMP580_DSP_SHDW_IIR_PRESS_EN, reg_val);
+
+ /* Configure oversampling */
+ reg_val = FIELD_PREP(BMP580_OSR_TEMP_MASK, data->oversampling_temp) |
+ FIELD_PREP(BMP580_OSR_PRESS_MASK, data->oversampling_press) |
+ BMP580_OSR_PRESS_EN;
+
+ ret = regmap_update_bits_check(data->regmap, BMP580_REG_OSR_CONFIG,
+ BMP580_OSR_TEMP_MASK | BMP580_OSR_PRESS_MASK |
+ BMP580_OSR_PRESS_EN,
+ reg_val, &aux);
+ if (ret) {
+ dev_err(data->dev, "failed to write oversampling register\n");
+ return ret;
+ }
+ change = change || aux;
+
+ /* Configure output data rate */
+ ret = regmap_update_bits_check(data->regmap, BMP580_REG_ODR_CONFIG, BMP580_ODR_MASK,
+ FIELD_PREP(BMP580_ODR_MASK, data->sampling_freq),
+ &aux);
+ if (ret) {
+ dev_err(data->dev, "failed to write ODR configuration register\n");
+ return ret;
+ }
+ change = change || aux;
+
+ /* Set filter data */
+ reg_val = FIELD_PREP(BMP580_DSP_IIR_PRESS_MASK, data->iir_filter_coeff) |
+ FIELD_PREP(BMP580_DSP_IIR_TEMP_MASK, data->iir_filter_coeff);
+
+ ret = regmap_update_bits_check(data->regmap, BMP580_REG_DSP_IIR,
+ BMP580_DSP_IIR_PRESS_MASK |
+ BMP580_DSP_IIR_TEMP_MASK,
+ reg_val, &aux);
+ if (ret) {
+ dev_err(data->dev, "failed to write config register\n");
+ return ret;
+ }
+ change = change || aux;
+
+ /* Restore sensor to normal operation mode */
+ ret = regmap_write_bits(data->regmap, BMP580_REG_ODR_CONFIG,
+ BMP580_MODE_MASK,
+ FIELD_PREP(BMP580_MODE_MASK, BMP580_MODE_NORMAL));
+ if (ret) {
+ dev_err(data->dev, "failed to set normal mode\n");
+ return ret;
+ }
+ /* From datasheet's table 4: electrical characteristics */
+ usleep_range(3000, 3500);
+
+ if (change) {
+ /*
+ * Check if ODR and OSR settings are valid or we are
+ * operating in a degraded mode.
+ */
+ ret = regmap_read(data->regmap, BMP580_REG_EFF_OSR, &tmp);
+ if (ret) {
+ dev_err(data->dev, "error reading effective OSR register\n");
+ return ret;
+ }
+ if (!(tmp & BMP580_EFF_OSR_VALID_ODR)) {
+ dev_warn(data->dev, "OSR and ODR incompatible settings detected\n");
+ /* Set current OSR settings from data on effective OSR */
+ data->oversampling_temp = FIELD_GET(BMP580_EFF_OSR_TEMP_MASK, tmp);
+ data->oversampling_press = FIELD_GET(BMP580_EFF_OSR_PRESS_MASK, tmp);
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static const int bmp580_oversampling_avail[] = { 1, 2, 4, 8, 16, 32, 64, 128 };
+
+const struct bmp280_chip_info bmp580_chip_info = {
+ .id_reg = BMP580_REG_CHIP_ID,
+ .chip_id = BMP580_CHIP_ID,
+ .regmap_config = &bmp580_regmap_config,
+ .start_up_time = 2000,
+ .channels = bmp380_channels,
+ .num_channels = 2,
+
+ .oversampling_temp_avail = bmp580_oversampling_avail,
+ .num_oversampling_temp_avail = ARRAY_SIZE(bmp580_oversampling_avail),
+ .oversampling_temp_default = ilog2(1),
+
+ .oversampling_press_avail = bmp580_oversampling_avail,
+ .num_oversampling_press_avail = ARRAY_SIZE(bmp580_oversampling_avail),
+ .oversampling_press_default = ilog2(4),
+
+ .sampling_freq_avail = bmp580_odr_table,
+ .num_sampling_freq_avail = ARRAY_SIZE(bmp580_odr_table) * 2,
+ .sampling_freq_default = BMP580_ODR_50HZ,
+
+ .iir_filter_coeffs_avail = bmp380_iir_filter_coeffs_avail,
+ .num_iir_filter_coeffs_avail = ARRAY_SIZE(bmp380_iir_filter_coeffs_avail),
+ .iir_filter_coeff_default = 2,
+
+ .chip_config = bmp580_chip_config,
+ .read_temp = bmp580_read_temp,
+ .read_press = bmp580_read_press,
+ .preinit = bmp580_preinit,
+};
+EXPORT_SYMBOL_NS(bmp580_chip_info, IIO_BMP280);
+
static int bmp180_measure(struct bmp280_data *data, u8 ctrl_meas)
{
const int conversion_time_max[] = { 4500, 7500, 13500, 25500 };
diff --git a/drivers/iio/pressure/bmp280-i2c.c b/drivers/iio/pressure/bmp280-i2c.c
index 5f908e2c9826..567b945e6427 100644
--- a/drivers/iio/pressure/bmp280-i2c.c
+++ b/drivers/iio/pressure/bmp280-i2c.c
@@ -34,6 +34,7 @@ static const struct of_device_id bmp280_of_i2c_match[] = {
{ .compatible = "bosch,bmp280", .data = &bmp280_chip_info },
{ .compatible = "bosch,bme280", .data = &bme280_chip_info },
{ .compatible = "bosch,bmp380", .data = &bmp380_chip_info },
+ { .compatible = "bosch,bmp580", .data = &bmp580_chip_info },
{ },
};
MODULE_DEVICE_TABLE(of, bmp280_of_i2c_match);
@@ -44,6 +45,7 @@ static const struct i2c_device_id bmp280_i2c_id[] = {
{"bmp280", (kernel_ulong_t)&bmp280_chip_info },
{"bme280", (kernel_ulong_t)&bme280_chip_info },
{"bmp380", (kernel_ulong_t)&bmp380_chip_info },
+ {"bmp580", (kernel_ulong_t)&bmp580_chip_info },
{ },
};
MODULE_DEVICE_TABLE(i2c, bmp280_i2c_id);
diff --git a/drivers/iio/pressure/bmp280-regmap.c b/drivers/iio/pressure/bmp280-regmap.c
index c98c67970265..3ee56720428c 100644
--- a/drivers/iio/pressure/bmp280-regmap.c
+++ b/drivers/iio/pressure/bmp280-regmap.c
@@ -115,6 +115,54 @@ static bool bmp380_is_volatile_reg(struct device *dev, unsigned int reg)
}
}
+static bool bmp580_is_writeable_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case BMP580_REG_NVM_DATA_MSB:
+ case BMP580_REG_NVM_DATA_LSB:
+ case BMP580_REG_NVM_ADDR:
+ case BMP580_REG_ODR_CONFIG:
+ case BMP580_REG_OSR_CONFIG:
+ case BMP580_REG_INT_SOURCE:
+ case BMP580_REG_INT_CONFIG:
+ case BMP580_REG_OOR_THR_MSB:
+ case BMP580_REG_OOR_THR_LSB:
+ case BMP580_REG_OOR_CONFIG:
+ case BMP580_REG_OOR_RANGE:
+ case BMP580_REG_IF_CONFIG:
+ case BMP580_REG_FIFO_CONFIG:
+ case BMP580_REG_FIFO_SEL:
+ case BMP580_REG_DSP_CONFIG:
+ case BMP580_REG_DSP_IIR:
+ case BMP580_REG_CMD:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool bmp580_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case BMP580_REG_NVM_DATA_MSB:
+ case BMP580_REG_NVM_DATA_LSB:
+ case BMP580_REG_FIFO_COUNT:
+ case BMP580_REG_INT_STATUS:
+ case BMP580_REG_PRESS_XLSB:
+ case BMP580_REG_PRESS_LSB:
+ case BMP580_REG_PRESS_MSB:
+ case BMP580_REG_FIFO_DATA:
+ case BMP580_REG_TEMP_XLSB:
+ case BMP580_REG_TEMP_LSB:
+ case BMP580_REG_TEMP_MSB:
+ case BMP580_REG_EFF_OSR:
+ case BMP580_REG_STATUS:
+ return true;
+ default:
+ return false;
+ }
+}
+
const struct regmap_config bmp280_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
@@ -138,3 +186,15 @@ const struct regmap_config bmp380_regmap_config = {
.volatile_reg = bmp380_is_volatile_reg,
};
EXPORT_SYMBOL_NS(bmp380_regmap_config, IIO_BMP280);
+
+const struct regmap_config bmp580_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .max_register = BMP580_REG_CMD,
+ .cache_type = REGCACHE_RBTREE,
+
+ .writeable_reg = bmp580_is_writeable_reg,
+ .volatile_reg = bmp580_is_volatile_reg,
+};
+EXPORT_SYMBOL_NS(bmp580_regmap_config, IIO_BMP280);
diff --git a/drivers/iio/pressure/bmp280-spi.c b/drivers/iio/pressure/bmp280-spi.c
index d5a224b95185..1dff9bb7c4e9 100644
--- a/drivers/iio/pressure/bmp280-spi.c
+++ b/drivers/iio/pressure/bmp280-spi.c
@@ -85,6 +85,7 @@ static const struct of_device_id bmp280_of_spi_match[] = {
{ .compatible = "bosch,bmp280", .data = &bmp280_chip_info },
{ .compatible = "bosch,bme280", .data = &bmp280_chip_info },
{ .compatible = "bosch,bmp380", .data = &bmp380_chip_info },
+ { .compatible = "bosch,bmp580", .data = &bmp580_chip_info },
{ },
};
MODULE_DEVICE_TABLE(of, bmp280_of_spi_match);
@@ -95,6 +96,7 @@ static const struct spi_device_id bmp280_spi_id[] = {
{ "bmp280", (kernel_ulong_t)&bmp280_chip_info },
{ "bme280", (kernel_ulong_t)&bmp280_chip_info },
{ "bmp380", (kernel_ulong_t)&bmp380_chip_info },
+ { "bmp580", (kernel_ulong_t)&bmp580_chip_info },
{ }
};
MODULE_DEVICE_TABLE(spi, bmp280_spi_id);
diff --git a/drivers/iio/pressure/bmp280.h b/drivers/iio/pressure/bmp280.h
index be17104ef0a2..f29d44b09efc 100644
--- a/drivers/iio/pressure/bmp280.h
+++ b/drivers/iio/pressure/bmp280.h
@@ -6,6 +6,107 @@
#include <linux/regulator/consumer.h>
+/* BMP580 specific registers */
+#define BMP580_REG_CMD 0x7E
+#define BMP580_REG_EFF_OSR 0x38
+#define BMP580_REG_ODR_CONFIG 0x37
+#define BMP580_REG_OSR_CONFIG 0x36
+#define BMP580_REG_IF_CONFIG 0x13
+#define BMP580_REG_REV_ID 0x02
+#define BMP580_REG_CHIP_ID 0x01
+/* OOR allows to configure a pressure alarm */
+#define BMP580_REG_OOR_CONFIG 0x35
+#define BMP580_REG_OOR_RANGE 0x34
+#define BMP580_REG_OOR_THR_MSB 0x33
+#define BMP580_REG_OOR_THR_LSB 0x32
+/* DSP registers (IIR filters) */
+#define BMP580_REG_DSP_IIR 0x31
+#define BMP580_REG_DSP_CONFIG 0x30
+/* NVM access registers */
+#define BMP580_REG_NVM_DATA_MSB 0x2D
+#define BMP580_REG_NVM_DATA_LSB 0x2C
+#define BMP580_REG_NVM_ADDR 0x2B
+/* Status registers */
+#define BMP580_REG_STATUS 0x28
+#define BMP580_REG_INT_STATUS 0x27
+#define BMP580_REG_CHIP_STATUS 0x11
+/* Data registers */
+#define BMP580_REG_FIFO_DATA 0x29
+#define BMP580_REG_PRESS_MSB 0x22
+#define BMP580_REG_PRESS_LSB 0x21
+#define BMP580_REG_PRESS_XLSB 0x20
+#define BMP580_REG_TEMP_MSB 0x1F
+#define BMP580_REG_TEMP_LSB 0x1E
+#define BMP580_REG_TEMP_XLSB 0x1D
+/* FIFO config registers */
+#define BMP580_REG_FIFO_SEL 0x18
+#define BMP580_REG_FIFO_COUNT 0x17
+#define BMP580_REG_FIFO_CONFIG 0x16
+/* Interruptions config registers */
+#define BMP580_REG_INT_SOURCE 0x15
+#define BMP580_REG_INT_CONFIG 0x14
+
+#define BMP580_CMD_NOOP 0x00
+#define BMP580_CMD_EXTMODE_SEQ_0 0x73
+#define BMP580_CMD_EXTMODE_SEQ_1 0xB4
+#define BMP580_CMD_EXTMODE_SEQ_2 0x69
+#define BMP580_CMD_NVM_OP_SEQ_0 0x5D
+#define BMP580_CMD_NVM_READ_SEQ_1 0xA5
+#define BMP580_CMD_NVM_WRITE_SEQ_1 0xA0
+#define BMP580_CMD_SOFT_RESET 0xB6
+
+#define BMP580_INT_STATUS_POR_MASK BIT(4)
+
+#define BMP580_STATUS_CORE_RDY_MASK BIT(0)
+#define BMP580_STATUS_NVM_RDY_MASK BIT(1)
+#define BMP580_STATUS_NVM_ERR_MASK BIT(2)
+#define BMP580_STATUS_NVM_CMD_ERR_MASK BIT(3)
+
+#define BMP580_OSR_PRESS_MASK GENMASK(5, 3)
+#define BMP580_OSR_TEMP_MASK GENMASK(2, 0)
+#define BMP580_OSR_PRESS_EN BIT(6)
+#define BMP580_EFF_OSR_PRESS_MASK GENMASK(5, 3)
+#define BMP580_EFF_OSR_TEMP_MASK GENMASK(2, 0)
+#define BMP580_EFF_OSR_VALID_ODR BIT(7)
+
+#define BMP580_ODR_MASK GENMASK(6, 2)
+#define BMP580_MODE_MASK GENMASK(1, 0)
+#define BMP580_MODE_SLEEP 0
+#define BMP580_MODE_NORMAL 1
+#define BMP580_MODE_FORCED 2
+#define BMP580_MODE_CONTINOUS 3
+#define BMP580_ODR_DEEPSLEEP_DIS BIT(7)
+
+#define BMP580_DSP_COMP_MASK GENMASK(1, 0)
+#define BMP580_DSP_COMP_DIS 0
+#define BMP580_DSP_TEMP_COMP_EN 1
+/*
+ * In section 7.27 of datasheet, modes 2 and 3 are technically the same.
+ * Pressure compensation means also enabling temperature compensation
+ */
+#define BMP580_DSP_PRESS_COMP_EN 2
+#define BMP580_DSP_PRESS_TEMP_COMP_EN 3
+#define BMP580_DSP_IIR_FORCED_FLUSH BIT(2)
+#define BMP580_DSP_SHDW_IIR_TEMP_EN BIT(3)
+#define BMP580_DSP_FIFO_IIR_TEMP_EN BIT(4)
+#define BMP580_DSP_SHDW_IIR_PRESS_EN BIT(5)
+#define BMP580_DSP_FIFO_IIR_PRESS_EN BIT(6)
+#define BMP580_DSP_OOR_IIR_PRESS_EN BIT(7)
+
+#define BMP580_DSP_IIR_PRESS_MASK GENMASK(5, 3)
+#define BMP580_DSP_IIR_TEMP_MASK GENMASK(2, 0)
+#define BMP580_FILTER_OFF 0
+#define BMP580_FILTER_1X 1
+#define BMP580_FILTER_3X 2
+#define BMP580_FILTER_7X 3
+#define BMP580_FILTER_15X 4
+#define BMP580_FILTER_31X 5
+#define BMP580_FILTER_63X 6
+#define BMP580_FILTER_127X 7
+
+#define BMP580_TEMP_SKIPPED 0x7f7f7f
+#define BMP580_PRESS_SKIPPED 0x7f7f7f
+
/* BMP380 specific registers */
#define BMP380_REG_CMD 0x7E
#define BMP380_REG_CONFIG 0x1F
@@ -184,6 +285,8 @@
#define BMP280_REG_ID 0xD0
#define BMP380_CHIP_ID 0x50
+#define BMP580_CHIP_ID 0x50
+#define BMP580_CHIP_ID_ALT 0x51
#define BMP180_CHIP_ID 0x55
#define BMP280_CHIP_ID 0x58
#define BME280_CHIP_ID 0x60
@@ -353,11 +456,13 @@ extern const struct bmp280_chip_info bmp180_chip_info;
extern const struct bmp280_chip_info bmp280_chip_info;
extern const struct bmp280_chip_info bme280_chip_info;
extern const struct bmp280_chip_info bmp380_chip_info;
+extern const struct bmp280_chip_info bmp580_chip_info;
/* Regmap configurations */
extern const struct regmap_config bmp180_regmap_config;
extern const struct regmap_config bmp280_regmap_config;
extern const struct regmap_config bmp380_regmap_config;
+extern const struct regmap_config bmp580_regmap_config;
/* Probe called from different transports */
int bmp280_common_probe(struct device *dev,
--
2.39.1
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