206 lines
4.6 KiB
Plaintext
206 lines
4.6 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 "MAX30101 Pulse Oximeter and Heart Rate Sensor"
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depends on I2C && HAS_DTS_I2C
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if MAX30101
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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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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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