License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-01 22:07:57 +08:00
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/* SPDX-License-Identifier: GPL-2.0 */
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2016-06-30 09:48:49 +08:00
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#include <linux/bitops.h>
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#include <linux/device.h>
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2023-02-20 00:57:59 +08:00
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#include <linux/iio/iio.h>
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2016-06-30 09:48:49 +08:00
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#include <linux/regmap.h>
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2023-02-20 00:57:59 +08:00
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#include <linux/regulator/consumer.h>
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2016-06-30 09:48:49 +08:00
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2023-02-20 01:03:04 +08:00
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/* BMP580 specific registers */
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#define BMP580_REG_CMD 0x7E
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#define BMP580_REG_EFF_OSR 0x38
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#define BMP580_REG_ODR_CONFIG 0x37
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#define BMP580_REG_OSR_CONFIG 0x36
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#define BMP580_REG_IF_CONFIG 0x13
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#define BMP580_REG_REV_ID 0x02
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#define BMP580_REG_CHIP_ID 0x01
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/* OOR allows to configure a pressure alarm */
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#define BMP580_REG_OOR_CONFIG 0x35
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#define BMP580_REG_OOR_RANGE 0x34
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#define BMP580_REG_OOR_THR_MSB 0x33
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#define BMP580_REG_OOR_THR_LSB 0x32
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/* DSP registers (IIR filters) */
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#define BMP580_REG_DSP_IIR 0x31
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#define BMP580_REG_DSP_CONFIG 0x30
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/* NVM access registers */
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#define BMP580_REG_NVM_DATA_MSB 0x2D
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#define BMP580_REG_NVM_DATA_LSB 0x2C
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#define BMP580_REG_NVM_ADDR 0x2B
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/* Status registers */
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#define BMP580_REG_STATUS 0x28
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#define BMP580_REG_INT_STATUS 0x27
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#define BMP580_REG_CHIP_STATUS 0x11
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/* Data registers */
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#define BMP580_REG_FIFO_DATA 0x29
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#define BMP580_REG_PRESS_MSB 0x22
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#define BMP580_REG_PRESS_LSB 0x21
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#define BMP580_REG_PRESS_XLSB 0x20
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#define BMP580_REG_TEMP_MSB 0x1F
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#define BMP580_REG_TEMP_LSB 0x1E
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#define BMP580_REG_TEMP_XLSB 0x1D
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/* FIFO config registers */
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#define BMP580_REG_FIFO_SEL 0x18
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#define BMP580_REG_FIFO_COUNT 0x17
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#define BMP580_REG_FIFO_CONFIG 0x16
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/* Interruptions config registers */
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#define BMP580_REG_INT_SOURCE 0x15
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#define BMP580_REG_INT_CONFIG 0x14
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#define BMP580_CMD_NOOP 0x00
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#define BMP580_CMD_EXTMODE_SEQ_0 0x73
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#define BMP580_CMD_EXTMODE_SEQ_1 0xB4
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#define BMP580_CMD_EXTMODE_SEQ_2 0x69
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#define BMP580_CMD_NVM_OP_SEQ_0 0x5D
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#define BMP580_CMD_NVM_READ_SEQ_1 0xA5
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#define BMP580_CMD_NVM_WRITE_SEQ_1 0xA0
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#define BMP580_CMD_SOFT_RESET 0xB6
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#define BMP580_INT_STATUS_POR_MASK BIT(4)
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#define BMP580_STATUS_CORE_RDY_MASK BIT(0)
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#define BMP580_STATUS_NVM_RDY_MASK BIT(1)
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#define BMP580_STATUS_NVM_ERR_MASK BIT(2)
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#define BMP580_STATUS_NVM_CMD_ERR_MASK BIT(3)
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#define BMP580_OSR_PRESS_MASK GENMASK(5, 3)
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#define BMP580_OSR_TEMP_MASK GENMASK(2, 0)
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#define BMP580_OSR_PRESS_EN BIT(6)
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#define BMP580_EFF_OSR_PRESS_MASK GENMASK(5, 3)
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#define BMP580_EFF_OSR_TEMP_MASK GENMASK(2, 0)
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#define BMP580_EFF_OSR_VALID_ODR BIT(7)
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#define BMP580_ODR_MASK GENMASK(6, 2)
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#define BMP580_MODE_MASK GENMASK(1, 0)
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#define BMP580_MODE_SLEEP 0
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#define BMP580_MODE_NORMAL 1
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#define BMP580_MODE_FORCED 2
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#define BMP580_MODE_CONTINOUS 3
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#define BMP580_ODR_DEEPSLEEP_DIS BIT(7)
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#define BMP580_DSP_COMP_MASK GENMASK(1, 0)
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#define BMP580_DSP_COMP_DIS 0
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#define BMP580_DSP_TEMP_COMP_EN 1
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/*
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* In section 7.27 of datasheet, modes 2 and 3 are technically the same.
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* Pressure compensation means also enabling temperature compensation
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*/
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#define BMP580_DSP_PRESS_COMP_EN 2
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#define BMP580_DSP_PRESS_TEMP_COMP_EN 3
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#define BMP580_DSP_IIR_FORCED_FLUSH BIT(2)
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#define BMP580_DSP_SHDW_IIR_TEMP_EN BIT(3)
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#define BMP580_DSP_FIFO_IIR_TEMP_EN BIT(4)
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#define BMP580_DSP_SHDW_IIR_PRESS_EN BIT(5)
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#define BMP580_DSP_FIFO_IIR_PRESS_EN BIT(6)
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#define BMP580_DSP_OOR_IIR_PRESS_EN BIT(7)
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#define BMP580_DSP_IIR_PRESS_MASK GENMASK(5, 3)
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#define BMP580_DSP_IIR_TEMP_MASK GENMASK(2, 0)
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#define BMP580_FILTER_OFF 0
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#define BMP580_FILTER_1X 1
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#define BMP580_FILTER_3X 2
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#define BMP580_FILTER_7X 3
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#define BMP580_FILTER_15X 4
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#define BMP580_FILTER_31X 5
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#define BMP580_FILTER_63X 6
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#define BMP580_FILTER_127X 7
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2023-02-20 01:03:06 +08:00
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#define BMP580_NVM_ROW_ADDR_MASK GENMASK(5, 0)
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#define BMP580_NVM_PROG_EN BIT(6)
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2023-02-20 01:03:04 +08:00
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#define BMP580_TEMP_SKIPPED 0x7f7f7f
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#define BMP580_PRESS_SKIPPED 0x7f7f7f
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2022-09-13 07:52:13 +08:00
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/* BMP380 specific registers */
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#define BMP380_REG_CMD 0x7E
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#define BMP380_REG_CONFIG 0x1F
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#define BMP380_REG_ODR 0x1D
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#define BMP380_REG_OSR 0x1C
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#define BMP380_REG_POWER_CONTROL 0x1B
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#define BMP380_REG_IF_CONFIG 0x1A
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#define BMP380_REG_INT_CONTROL 0x19
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#define BMP380_REG_INT_STATUS 0x11
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#define BMP380_REG_EVENT 0x10
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#define BMP380_REG_STATUS 0x03
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#define BMP380_REG_ERROR 0x02
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#define BMP380_REG_ID 0x00
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#define BMP380_REG_FIFO_CONFIG_1 0x18
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#define BMP380_REG_FIFO_CONFIG_2 0x17
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#define BMP380_REG_FIFO_WATERMARK_MSB 0x16
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#define BMP380_REG_FIFO_WATERMARK_LSB 0x15
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#define BMP380_REG_FIFO_DATA 0x14
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#define BMP380_REG_FIFO_LENGTH_MSB 0x13
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#define BMP380_REG_FIFO_LENGTH_LSB 0x12
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#define BMP380_REG_SENSOR_TIME_MSB 0x0E
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#define BMP380_REG_SENSOR_TIME_LSB 0x0D
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#define BMP380_REG_SENSOR_TIME_XLSB 0x0C
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#define BMP380_REG_TEMP_MSB 0x09
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#define BMP380_REG_TEMP_LSB 0x08
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#define BMP380_REG_TEMP_XLSB 0x07
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#define BMP380_REG_PRESS_MSB 0x06
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#define BMP380_REG_PRESS_LSB 0x05
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#define BMP380_REG_PRESS_XLSB 0x04
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#define BMP380_REG_CALIB_TEMP_START 0x31
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#define BMP380_CALIB_REG_COUNT 21
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#define BMP380_FILTER_MASK GENMASK(3, 1)
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#define BMP380_FILTER_OFF 0
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#define BMP380_FILTER_1X 1
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#define BMP380_FILTER_3X 2
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#define BMP380_FILTER_7X 3
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#define BMP380_FILTER_15X 4
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#define BMP380_FILTER_31X 5
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#define BMP380_FILTER_63X 6
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#define BMP380_FILTER_127X 7
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#define BMP380_OSRS_TEMP_MASK GENMASK(5, 3)
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#define BMP380_OSRS_PRESS_MASK GENMASK(2, 0)
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#define BMP380_ODRS_MASK GENMASK(4, 0)
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#define BMP380_CTRL_SENSORS_MASK GENMASK(1, 0)
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#define BMP380_CTRL_SENSORS_PRESS_EN BIT(0)
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#define BMP380_CTRL_SENSORS_TEMP_EN BIT(1)
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#define BMP380_MODE_MASK GENMASK(5, 4)
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#define BMP380_MODE_SLEEP 0
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#define BMP380_MODE_FORCED 1
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#define BMP380_MODE_NORMAL 3
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#define BMP380_MIN_TEMP -4000
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#define BMP380_MAX_TEMP 8500
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#define BMP380_MIN_PRES 3000000
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#define BMP380_MAX_PRES 12500000
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#define BMP380_CMD_NOOP 0x00
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#define BMP380_CMD_EXTMODE_EN_MID 0x34
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#define BMP380_CMD_FIFO_FLUSH 0xB0
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#define BMP380_CMD_SOFT_RESET 0xB6
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#define BMP380_STATUS_CMD_RDY_MASK BIT(4)
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#define BMP380_STATUS_DRDY_PRESS_MASK BIT(5)
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#define BMP380_STATUS_DRDY_TEMP_MASK BIT(6)
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#define BMP380_ERR_FATAL_MASK BIT(0)
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#define BMP380_ERR_CMD_MASK BIT(1)
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#define BMP380_ERR_CONF_MASK BIT(2)
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#define BMP380_TEMP_SKIPPED 0x800000
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#define BMP380_PRESS_SKIPPED 0x800000
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2016-06-30 09:48:49 +08:00
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/* BMP280 specific registers */
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#define BMP280_REG_HUMIDITY_LSB 0xFE
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#define BMP280_REG_HUMIDITY_MSB 0xFD
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#define BMP280_REG_TEMP_XLSB 0xFC
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#define BMP280_REG_TEMP_LSB 0xFB
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#define BMP280_REG_TEMP_MSB 0xFA
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#define BMP280_REG_PRESS_XLSB 0xF9
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#define BMP280_REG_PRESS_LSB 0xF8
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#define BMP280_REG_PRESS_MSB 0xF7
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2022-09-13 07:48:21 +08:00
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/* Helper mask to truncate excess 4 bits on pressure and temp readings */
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#define BMP280_MEAS_TRIM_MASK GENMASK(24, 4)
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2022-09-13 07:45:49 +08:00
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2016-06-30 09:48:49 +08:00
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#define BMP280_REG_CONFIG 0xF5
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#define BMP280_REG_CTRL_MEAS 0xF4
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#define BMP280_REG_STATUS 0xF3
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#define BMP280_REG_CTRL_HUMIDITY 0xF2
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/* Due to non linear mapping, and data sizes we can't do a bulk read */
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#define BMP280_REG_COMP_H1 0xA1
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#define BMP280_REG_COMP_H2 0xE1
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#define BMP280_REG_COMP_H3 0xE3
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#define BMP280_REG_COMP_H4 0xE4
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#define BMP280_REG_COMP_H5 0xE5
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#define BMP280_REG_COMP_H6 0xE7
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#define BMP280_REG_COMP_TEMP_START 0x88
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#define BMP280_COMP_TEMP_REG_COUNT 6
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#define BMP280_REG_COMP_PRESS_START 0x8E
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#define BMP280_COMP_PRESS_REG_COUNT 18
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2022-09-13 07:45:49 +08:00
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#define BMP280_COMP_H5_MASK GENMASK(15, 4)
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2022-09-13 07:46:42 +08:00
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#define BMP280_CONTIGUOUS_CALIB_REGS (BMP280_COMP_TEMP_REG_COUNT + \
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BMP280_COMP_PRESS_REG_COUNT)
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2022-09-13 07:45:49 +08:00
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#define BMP280_FILTER_MASK GENMASK(4, 2)
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2016-06-30 09:48:49 +08:00
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#define BMP280_FILTER_OFF 0
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2022-09-13 07:45:49 +08:00
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#define BMP280_FILTER_2X 1
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#define BMP280_FILTER_4X 2
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#define BMP280_FILTER_8X 3
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#define BMP280_FILTER_16X 4
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2016-06-30 09:48:49 +08:00
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2022-09-13 07:45:49 +08:00
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#define BMP280_OSRS_HUMIDITY_MASK GENMASK(2, 0)
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2016-06-30 09:48:49 +08:00
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#define BMP280_OSRS_HUMIDITY_SKIP 0
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2022-09-13 07:45:49 +08:00
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#define BMP280_OSRS_HUMIDITY_1X 1
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#define BMP280_OSRS_HUMIDITY_2X 2
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#define BMP280_OSRS_HUMIDITY_4X 3
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#define BMP280_OSRS_HUMIDITY_8X 4
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#define BMP280_OSRS_HUMIDITY_16X 5
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2016-06-30 09:48:49 +08:00
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2022-09-13 07:45:49 +08:00
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#define BMP280_OSRS_TEMP_MASK GENMASK(7, 5)
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2016-06-30 09:48:49 +08:00
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#define BMP280_OSRS_TEMP_SKIP 0
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2022-09-13 07:45:49 +08:00
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#define BMP280_OSRS_TEMP_1X 1
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#define BMP280_OSRS_TEMP_2X 2
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#define BMP280_OSRS_TEMP_4X 3
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#define BMP280_OSRS_TEMP_8X 4
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#define BMP280_OSRS_TEMP_16X 5
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#define BMP280_OSRS_PRESS_MASK GENMASK(4, 2)
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2016-06-30 09:48:49 +08:00
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#define BMP280_OSRS_PRESS_SKIP 0
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2022-09-13 07:45:49 +08:00
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#define BMP280_OSRS_PRESS_1X 1
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#define BMP280_OSRS_PRESS_2X 2
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#define BMP280_OSRS_PRESS_4X 3
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#define BMP280_OSRS_PRESS_8X 4
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#define BMP280_OSRS_PRESS_16X 5
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#define BMP280_MODE_MASK GENMASK(1, 0)
|
2016-06-30 09:48:49 +08:00
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#define BMP280_MODE_SLEEP 0
|
2022-09-13 07:45:49 +08:00
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#define BMP280_MODE_FORCED 1
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#define BMP280_MODE_NORMAL 3
|
2016-06-30 09:48:49 +08:00
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/* BMP180 specific registers */
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#define BMP180_REG_OUT_XLSB 0xF8
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#define BMP180_REG_OUT_LSB 0xF7
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#define BMP180_REG_OUT_MSB 0xF6
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#define BMP180_REG_CALIB_START 0xAA
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#define BMP180_REG_CALIB_COUNT 22
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|
2022-09-13 07:45:49 +08:00
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#define BMP180_MEAS_CTRL_MASK GENMASK(4, 0)
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#define BMP180_MEAS_TEMP 0x0E
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#define BMP180_MEAS_PRESS 0x14
|
2016-06-30 09:48:49 +08:00
|
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#define BMP180_MEAS_SCO BIT(5)
|
2022-09-13 07:45:49 +08:00
|
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#define BMP180_OSRS_PRESS_MASK GENMASK(7, 6)
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#define BMP180_MEAS_PRESS_1X 0
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#define BMP180_MEAS_PRESS_2X 1
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#define BMP180_MEAS_PRESS_4X 2
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#define BMP180_MEAS_PRESS_8X 3
|
2016-06-30 09:48:49 +08:00
|
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|
|
/* BMP180 and BMP280 common registers */
|
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#define BMP280_REG_CTRL_MEAS 0xF4
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#define BMP280_REG_RESET 0xE0
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#define BMP280_REG_ID 0xD0
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|
2022-09-13 07:52:13 +08:00
|
|
|
#define BMP380_CHIP_ID 0x50
|
2023-02-20 01:03:04 +08:00
|
|
|
#define BMP580_CHIP_ID 0x50
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|
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#define BMP580_CHIP_ID_ALT 0x51
|
2016-06-30 09:48:49 +08:00
|
|
|
#define BMP180_CHIP_ID 0x55
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|
#define BMP280_CHIP_ID 0x58
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#define BME280_CHIP_ID 0x60
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#define BMP280_SOFT_RESET_VAL 0xB6
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|
2017-07-25 17:11:14 +08:00
|
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/* BMP280 register skipped special values */
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#define BMP280_TEMP_SKIPPED 0x80000
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#define BMP280_PRESS_SKIPPED 0x80000
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#define BMP280_HUMIDITY_SKIPPED 0x8000
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|
2023-02-20 00:57:59 +08:00
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|
/* Core exported structs */
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|
|
static const char *const bmp280_supply_names[] = {
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|
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"vddd", "vdda"
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};
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|
#define BMP280_NUM_SUPPLIES ARRAY_SIZE(bmp280_supply_names)
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|
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struct bmp180_calib {
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|
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s16 AC1;
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s16 AC2;
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s16 AC3;
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|
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u16 AC4;
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|
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u16 AC5;
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|
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u16 AC6;
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|
|
s16 B1;
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|
|
s16 B2;
|
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|
|
s16 MB;
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|
|
s16 MC;
|
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|
|
s16 MD;
|
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|
|
|
};
|
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|
|
/* See datasheet Section 4.2.2. */
|
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|
|
|
struct bmp280_calib {
|
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|
|
|
u16 T1;
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|
s16 T2;
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s16 T3;
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|
|
u16 P1;
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|
s16 P2;
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|
s16 P3;
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|
s16 P4;
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|
|
s16 P5;
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|
|
s16 P6;
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|
|
s16 P7;
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|
s16 P8;
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|
|
s16 P9;
|
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|
|
u8 H1;
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|
|
s16 H2;
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|
|
u8 H3;
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|
s16 H4;
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|
|
s16 H5;
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|
|
s8 H6;
|
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|
|
|
};
|
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|
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|
|
|
/* See datasheet Section 3.11.1. */
|
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|
|
|
struct bmp380_calib {
|
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|
|
|
u16 T1;
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|
|
u16 T2;
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|
s8 T3;
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|
|
s16 P1;
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|
|
s16 P2;
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|
|
s8 P3;
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|
s8 P4;
|
|
|
|
|
u16 P5;
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|
|
u16 P6;
|
|
|
|
|
s8 P7;
|
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|
|
s8 P8;
|
|
|
|
|
s16 P9;
|
|
|
|
|
s8 P10;
|
|
|
|
|
s8 P11;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
struct bmp280_data {
|
|
|
|
|
struct device *dev;
|
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|
|
|
struct mutex lock;
|
|
|
|
|
struct regmap *regmap;
|
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|
|
|
struct completion done;
|
|
|
|
|
bool use_eoc;
|
|
|
|
|
const struct bmp280_chip_info *chip_info;
|
|
|
|
|
union {
|
|
|
|
|
struct bmp180_calib bmp180;
|
|
|
|
|
struct bmp280_calib bmp280;
|
|
|
|
|
struct bmp380_calib bmp380;
|
|
|
|
|
} calib;
|
|
|
|
|
struct regulator_bulk_data supplies[BMP280_NUM_SUPPLIES];
|
|
|
|
|
unsigned int start_up_time; /* in microseconds */
|
|
|
|
|
|
|
|
|
|
/* log of base 2 of oversampling rate */
|
|
|
|
|
u8 oversampling_press;
|
|
|
|
|
u8 oversampling_temp;
|
|
|
|
|
u8 oversampling_humid;
|
|
|
|
|
u8 iir_filter_coeff;
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* BMP380 devices introduce sampling frequency configuration. See
|
|
|
|
|
* datasheet sections 3.3.3. and 4.3.19 for more details.
|
|
|
|
|
*
|
|
|
|
|
* BMx280 devices allowed indirect configuration of sampling frequency
|
|
|
|
|
* changing the t_standby duration between measurements, as detailed on
|
|
|
|
|
* section 3.6.3 of the datasheet.
|
|
|
|
|
*/
|
|
|
|
|
int sampling_freq;
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Carryover value from temperature conversion, used in pressure
|
|
|
|
|
* calculation.
|
|
|
|
|
*/
|
|
|
|
|
s32 t_fine;
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* DMA (thus cache coherency maintenance) may require the
|
|
|
|
|
* transfer buffers to live in their own cache lines.
|
|
|
|
|
*/
|
|
|
|
|
union {
|
|
|
|
|
/* Sensor data buffer */
|
|
|
|
|
u8 buf[3];
|
|
|
|
|
/* Calibration data buffers */
|
|
|
|
|
__le16 bmp280_cal_buf[BMP280_CONTIGUOUS_CALIB_REGS / 2];
|
|
|
|
|
__be16 bmp180_cal_buf[BMP180_REG_CALIB_COUNT / 2];
|
|
|
|
|
u8 bmp380_cal_buf[BMP380_CALIB_REG_COUNT];
|
|
|
|
|
/* Miscellaneous, endianess-aware data buffers */
|
|
|
|
|
__le16 le16;
|
|
|
|
|
__be16 be16;
|
|
|
|
|
} __aligned(IIO_DMA_MINALIGN);
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
struct bmp280_chip_info {
|
|
|
|
|
unsigned int id_reg;
|
|
|
|
|
const unsigned int chip_id;
|
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|
|
|
|
|
|
|
|
const struct regmap_config *regmap_config;
|
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|
|
|
|
|
|
|
|
const struct iio_chan_spec *channels;
|
|
|
|
|
int num_channels;
|
|
|
|
|
unsigned int start_up_time;
|
|
|
|
|
|
|
|
|
|
const int *oversampling_temp_avail;
|
|
|
|
|
int num_oversampling_temp_avail;
|
|
|
|
|
int oversampling_temp_default;
|
|
|
|
|
|
|
|
|
|
const int *oversampling_press_avail;
|
|
|
|
|
int num_oversampling_press_avail;
|
|
|
|
|
int oversampling_press_default;
|
|
|
|
|
|
|
|
|
|
const int *oversampling_humid_avail;
|
|
|
|
|
int num_oversampling_humid_avail;
|
|
|
|
|
int oversampling_humid_default;
|
|
|
|
|
|
|
|
|
|
const int *iir_filter_coeffs_avail;
|
|
|
|
|
int num_iir_filter_coeffs_avail;
|
|
|
|
|
int iir_filter_coeff_default;
|
|
|
|
|
|
|
|
|
|
const int (*sampling_freq_avail)[2];
|
|
|
|
|
int num_sampling_freq_avail;
|
|
|
|
|
int sampling_freq_default;
|
|
|
|
|
|
|
|
|
|
int (*chip_config)(struct bmp280_data *);
|
2023-02-20 01:03:04 +08:00
|
|
|
int (*read_temp)(struct bmp280_data *, int *, int *);
|
2023-02-20 00:57:59 +08:00
|
|
|
int (*read_press)(struct bmp280_data *, int *, int *);
|
|
|
|
|
int (*read_humid)(struct bmp280_data *, int *, int *);
|
|
|
|
|
int (*read_calib)(struct bmp280_data *);
|
2023-02-20 00:58:00 +08:00
|
|
|
int (*preinit)(struct bmp280_data *);
|
2023-02-20 00:57:59 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Chip infos for each variant */
|
|
|
|
|
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;
|
2023-02-20 01:03:04 +08:00
|
|
|
extern const struct bmp280_chip_info bmp580_chip_info;
|
2023-02-20 00:57:59 +08:00
|
|
|
|
2016-06-30 09:48:49 +08:00
|
|
|
/* Regmap configurations */
|
|
|
|
|
extern const struct regmap_config bmp180_regmap_config;
|
|
|
|
|
extern const struct regmap_config bmp280_regmap_config;
|
2022-09-13 07:52:13 +08:00
|
|
|
extern const struct regmap_config bmp380_regmap_config;
|
2023-02-20 01:03:04 +08:00
|
|
|
extern const struct regmap_config bmp580_regmap_config;
|
2016-06-30 09:48:49 +08:00
|
|
|
|
|
|
|
|
/* Probe called from different transports */
|
|
|
|
|
int bmp280_common_probe(struct device *dev,
|
|
|
|
|
struct regmap *regmap,
|
2023-02-20 00:57:59 +08:00
|
|
|
const struct bmp280_chip_info *,
|
2016-06-30 09:48:52 +08:00
|
|
|
const char *name,
|
|
|
|
|
int irq);
|
2016-06-30 09:48:53 +08:00
|
|
|
|
|
|
|
|
/* PM ops */
|
|
|
|
|
extern const struct dev_pm_ops bmp280_dev_pm_ops;
|
