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53678df5e2
Adds basic sensor driver support for the Maxim MAX30101 heart rate sensor. This driver does not yet support any sensor triggers such as the data ready trigger, or runtime changing of sensor attributes. Default configuration values were taken from the MikroE Hexiwear driver. https://github.com/MikroElektronika/HEXIWEAR Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX30101.pdf Jira: ZEP-720 Change-Id: Ie8981e124da36a56a214f133bf9a11b9f47d60fa Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
219 lines
4.8 KiB
Plaintext
219 lines
4.8 KiB
Plaintext
# Kconfig - MAX30101 heart rate sensor
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#
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# Copyright (c) 2017, NXP
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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menuconfig MAX30101
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bool
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prompt "MAX30101 Pulse Oximeter and Heart Rate Sensor"
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depends on SENSOR && I2C
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default n
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if MAX30101
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config MAX30101_NAME
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string
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prompt "Driver name"
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default "MAX30101"
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config MAX30101_I2C_NAME
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string
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prompt "I2C device name"
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default "I2C_0"
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config MAX30101_SMP_AVE
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int "Sample averaging"
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range 0 7
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default 0
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help
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To reduce the amount of data throughput, adjacent samples (in each
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individual channel) can be averaged and decimated on the chip by
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setting this register. Set to 0 for no averaging.
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0 = 1 sample (no averaging)
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1 = 2 samples
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2 = 4 samples
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3 = 8 samples
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4 = 16 samples
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5 = 32 samples
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6 = 32 samples
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7 = 32 samples
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config MAX30101_FIFO_ROLLOVER_EN
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bool "FIFO rolls on full"
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default n
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help
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Controls the behavior of the FIFO when the FIFO becomes completely
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filled with data. If set, the FIFO address rolls over to zero and the
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FIFO continues to fill with new data. If not set, then the FIFO is
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not updated until FIFO_DATA is read or the WRITE/READ pointer
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positions are changed.
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config MAX30101_FIFO_A_FULL
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int "FIFO almost full value"
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range 0 15
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default 0
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help
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Set the trigger for the FIFO_A_FULL interrupt
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choice MAX30101_MODE
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prompt "Mode control"
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default MAX30101_MULTI_LED_MODE
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config MAX30101_HEART_RATE_MODE
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bool "Heart rate mode"
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help
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Set to operate in heart rate only mode. The red LED channel is
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active.
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config MAX30101_SPO2_MODE
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bool "SpO2 mode"
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help
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Set to operate in SpO2 mode. The red and IR LED channels are active.
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config MAX30101_MULTI_LED_MODE
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bool "Multi-LED mode"
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help
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Set to operate in multi-LED mode. The green, red, and/or IR LED
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channels are active.
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endchoice
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config MAX30101_ADC_RGE
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int "ADC range control"
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range 0 3
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default 2
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help
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Set the ADC's full-scale range.
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0 = 7.81 pA/LSB
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1 = 15.63 pA/LSB
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2 = 31.25 pA/LSB
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3 = 62.5 pA/LSB
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config MAX30101_SR
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int "ADC sample rate control"
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range 0 7
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default 0
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help
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Set the effective sampling rate with one sample consisting of one
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pulse/conversion per active LED channel. In SpO2 mode, these means
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one IR pulse/conversion and one red pulse/conversion per sample
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period.
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0 = 50 Hz
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1 = 100 Hz
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2 = 200 Hz
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3 = 400 Hz
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4 = 800 Hz
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5 = 1000 Hz
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6 = 1600 Hz
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7 = 3200 Hz
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config MAX30101_LED1_PA
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hex "LED1 (red) pulse amplitude"
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range 0 0xff
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default 0xff
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help
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Set the pulse amplitude to control the LED1 (red) current. The actual
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measured LED current for each part can vary significantly due to the
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trimming methodology.
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0x00 = 0.0 mA
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0x01 = 0.2 mA
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0x02 = 0.4 mA
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0x0f = 3.1 mA
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0xff = 50.0 mA
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config MAX30101_LED2_PA
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hex "LED2 (IR) pulse amplitude"
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range 0 0xff
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default 0x33
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help
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Set the pulse amplitude to control the LED2 (IR) current. The actual
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measured LED current for each part can vary significantly due to the
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trimming methodology.
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0x00 = 0.0 mA
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0x01 = 0.2 mA
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0x02 = 0.4 mA
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0x0f = 3.1 mA
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0xff = 50.0 mA
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config MAX30101_LED3_PA
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hex "LED2 (green) pulse amplitude"
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range 0 0xff
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default 0xff
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help
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Set the pulse amplitude to control the LED3 (green) current. The
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actual measured LED current for each part can vary significantly due
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to the trimming methodology.
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0x00 = 0.0 mA
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0x01 = 0.2 mA
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0x02 = 0.4 mA
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0x0f = 3.1 mA
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0xff = 50.0 mA
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if MAX30101_MULTI_LED_MODE
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config MAX30101_SLOT1
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int "Slot 1"
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range 0 7
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default 3
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help
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Set which LED and pulse amplitude are active in time slot 1.
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0: None (disabled)
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1: LED1 (red), LED1_PA
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2: LED2 (IR), LED2_PA
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3: LED3 (green), LED3_PA
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4: None (disabled)
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5: LED1 (red), PILOT_PA
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6: LED2 (IR), PILOT_PA
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7: LED3 (green), PILOT_PA
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config MAX30101_SLOT2
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int "Slot 2"
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range 0 7
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default 0
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help
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Set which LED and pulse amplitude are active in time slot 2.
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0: None (disabled)
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1: LED1 (red), LED1_PA
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2: LED2 (IR), LED2_PA
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3: LED3 (green), LED3_PA
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4: None (disabled)
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5: LED1 (red), PILOT_PA
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6: LED2 (IR), PILOT_PA
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7: LED3 (green), PILOT_PA
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config MAX30101_SLOT3
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int "Slot 3"
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range 0 7
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default 0
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help
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Set which LED and pulse amplitude are active in time slot 3.
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0: None (disabled)
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1: LED1 (red), LED1_PA
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2: LED2 (IR), LED2_PA
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3: LED3 (green), LED3_PA
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4: None (disabled)
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5: LED1 (red), PILOT_PA
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6: LED2 (IR), PILOT_PA
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7: LED3 (green), PILOT_PA
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config MAX30101_SLOT4
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int "Slot 4"
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range 0 7
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default 0
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help
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Set which LED and pulse amplitude are active in time slot 4.
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0: None (disabled)
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1: LED1 (red), LED1_PA
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2: LED2 (IR), LED2_PA
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3: LED3 (green), LED3_PA
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4: None (disabled)
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5: LED1 (red), PILOT_PA
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6: LED2 (IR), PILOT_PA
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7: LED3 (green), PILOT_PA
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endif # MAX30101_MULTI_LED_MODE
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endif # MAX30101
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