drivers: input: cy8cmbr3xxx: add support for cy8cmbr3xxx input driver
Support for the cy8cmbr3xxx input driver is added. Signed-off-by: Matthias Alleman <matthias.alleman@basalte.be>
This commit is contained in:
Matthias Alleman
Benjamin Cabé
parent
34f7374468
commit
d0e98b2425
6 changed files with 530 additions and 0 deletions
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@ -11,6 +11,7 @@ zephyr_library_sources_ifdef(CONFIG_INPUT_CAP12XX input_cap12xx.c)
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zephyr_library_sources_ifdef(CONFIG_INPUT_CF1133 input_cf1133.c)
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zephyr_library_sources_ifdef(CONFIG_INPUT_CHSC6X input_chsc6x.c)
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zephyr_library_sources_ifdef(CONFIG_INPUT_CST816S input_cst816s.c)
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zephyr_library_sources_ifdef(CONFIG_INPUT_CY8CMBR3XXX input_cy8cmbr3xxx.c)
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zephyr_library_sources_ifdef(CONFIG_INPUT_ESP32_TOUCH_SENSOR input_esp32_touch_sensor.c)
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zephyr_library_sources_ifdef(CONFIG_INPUT_FT5336 input_ft5336.c)
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zephyr_library_sources_ifdef(CONFIG_INPUT_GPIO_KBD_MATRIX input_gpio_kbd_matrix.c)
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@ -12,6 +12,7 @@ source "drivers/input/Kconfig.cap12xx"
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source "drivers/input/Kconfig.cf1133"
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source "drivers/input/Kconfig.chsc6x"
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source "drivers/input/Kconfig.cst816s"
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source "drivers/input/Kconfig.cy8cmbr3xxx"
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source "drivers/input/Kconfig.esp32"
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source "drivers/input/Kconfig.evdev"
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source "drivers/input/Kconfig.ft5336"
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11
drivers/input/Kconfig.cy8cmbr3xxx
Normal file
11
drivers/input/Kconfig.cy8cmbr3xxx
Normal file
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@ -0,0 +1,11 @@
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# Copyright (c) 2025 Basalte bv
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# SPDX-License-Identifier: Apache-2.0
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config INPUT_CY8CMBR3XXX
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bool "CY8CMBR3XXX capacitive touch sensor driver"
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default y
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depends on DT_HAS_CYPRESS_CY8CMBR3XXX_ENABLED
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select I2C
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help
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Enable driver for cypress CY8CMBR3XXX capacitive
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touch sensor.
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445
drivers/input/input_cy8cmbr3xxx.c
Normal file
445
drivers/input/input_cy8cmbr3xxx.c
Normal file
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@ -0,0 +1,445 @@
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/*
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* Copyright (c) 2025 Basalte bv
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#define DT_DRV_COMPAT cypress_cy8cmbr3xxx
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#include <zephyr/drivers/gpio.h>
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#include <zephyr/drivers/i2c.h>
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#include <zephyr/input/cy8cmbr3xxx.h>
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#include <zephyr/input/input.h>
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#include <zephyr/logging/log.h>
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LOG_MODULE_REGISTER(cy8cmbr3xxx, CONFIG_INPUT_LOG_LEVEL);
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#define CY8CMBR3XXX_SENSOR_EN 0x00
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#define CY8CMBR3XXX_FSS_EN 0x02
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#define CY8CMBR3XXX_TOGGLE_EN 0x04
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#define CY8CMBR3XXX_LED_ON_EN 0x06
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#define CY8CMBR3XXX_SENSITIVITY0 0x08
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#define CY8CMBR3XXX_SENSITIVITY1 0x09
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#define CY8CMBR3XXX_SENSITIVITY2 0x0A
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#define CY8CMBR3XXX_SENSITIVITY3 0x0B
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#define CY8CMBR3XXX_BASE_THRESHOLD0 0x0C
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#define CY8CMBR3XXX_BASE_THRESHOLD1 0x0D
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#define CY8CMBR3XXX_FINGER_THRESHOLD2 0x0E
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#define CY8CMBR3XXX_FINGER_THRESHOLD3 0x0F
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#define CY8CMBR3XXX_FINGER_THRESHOLD4 0x10
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#define CY8CMBR3XXX_FINGER_THRESHOLD5 0x11
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#define CY8CMBR3XXX_FINGER_THRESHOLD6 0x12
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#define CY8CMBR3XXX_FINGER_THRESHOLD7 0x13
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#define CY8CMBR3XXX_FINGER_THRESHOLD8 0x14
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#define CY8CMBR3XXX_FINGER_THRESHOLD9 0x15
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#define CY8CMBR3XXX_FINGER_THRESHOLD10 0x16
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#define CY8CMBR3XXX_FINGER_THRESHOLD11 0x17
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#define CY8CMBR3XXX_FINGER_THRESHOLD12 0x18
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#define CY8CMBR3XXX_FINGER_THRESHOLD13 0x19
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#define CY8CMBR3XXX_FINGER_THRESHOLD14 0x1A
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#define CY8CMBR3XXX_FINGER_THRESHOLD15 0x1B
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#define CY8CMBR3XXX_SENSOR_DEBOUNCE 0x1C
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#define CY8CMBR3XXX_BUTTON_HYS 0x1D
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#define CY8CMBR3XXX_BUTTON_LBR 0x1F
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#define CY8CMBR3XXX_BUTTON_NNT 0x20
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#define CY8CMBR3XXX_BUTTON_NT 0x21
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#define CY8CMBR3XXX_PROX_EN 0x26
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#define CY8CMBR3XXX_PROX_CFG 0x27
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#define CY8CMBR3XXX_PROX_CFG2 0x28
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#define CY8CMBR3XXX_PROX_TOUCH_TH0 0x2A
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#define CY8CMBR3XXX_PROX_TOUCH_TH1 0x2C
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#define CY8CMBR3XXX_PROX_RESOLUTION0 0x2E
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#define CY8CMBR3XXX_PROX_RESOLUTION1 0x2F
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#define CY8CMBR3XXX_PROX_HYS 0x30
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#define CY8CMBR3XXX_PROX_LBR 0x32
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#define CY8CMBR3XXX_PROX_NNT 0x33
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#define CY8CMBR3XXX_PROX_NT 0x34
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#define CY8CMBR3XXX_PROX_POSITIVE_TH0 0x35
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#define CY8CMBR3XXX_PROX_POSITIVE_TH1 0x36
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#define CY8CMBR3XXX_PROX_NEGATIVE_TH0 0x39
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#define CY8CMBR3XXX_PROX_NEGATIVE_TH1 0x3A
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#define CY8CMBR3XXX_LED_ON_TIME 0x3D
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#define CY8CMBR3XXX_BUZZER_CFG 0x3E
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#define CY8CMBR3XXX_BUZZER_ON_TIME 0x3F
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#define CY8CMBR3XXX_GPO_CFG 0x40
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#define CY8CMBR3XXX_PWM_DUTYCYCLE_CFG0 0x41
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#define CY8CMBR3XXX_PWM_DUTYCYCLE_CFG1 0x42
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#define CY8CMBR3XXX_PWM_DUTYCYCLE_CFG2 0x43
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#define CY8CMBR3XXX_PWM_DUTYCYCLE_CFG3 0x44
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#define CY8CMBR3XXX_PWM_DUTYCYCLE_CFG4 0x45
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#define CY8CMBR3XXX_PWM_DUTYCYCLE_CFG5 0x46
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#define CY8CMBR3XXX_PWM_DUTYCYCLE_CFG6 0x47
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#define CY8CMBR3XXX_PWM_DUTYCYCLE_CFG7 0x48
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#define CY8CMBR3XXX_SPO_CFG 0x4C
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#define CY8CMBR3XXX_DEVICE_CFG0 0x4D
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#define CY8CMBR3XXX_DEVICE_CFG1 0x4E
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#define CY8CMBR3XXX_DEVICE_CFG2 0x4F
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#define CY8CMBR3XXX_DEVICE_CFG3 0x50
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#define CY8CMBR3XXX_I2C_ADDR 0x51
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#define CY8CMBR3XXX_REFRESH_CTRL 0x52
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#define CY8CMBR3XXX_STATE_TIMEOUT 0x55
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#define CY8CMBR3XXX_SLIDER_CFG 0x5D
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#define CY8CMBR3XXX_SLIDER1_CFG 0x61
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#define CY8CMBR3XXX_SLIDER1_RESOLUTION 0x62
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#define CY8CMBR3XXX_SLIDER1_THRESHOLD 0x63
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#define CY8CMBR3XXX_SLIDER2_CFG 0x67
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#define CY8CMBR3XXX_SLIDER2_RESOLUTION 0x68
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#define CY8CMBR3XXX_SLIDER2_THRESHOLD 0x69
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#define CY8CMBR3XXX_SLIDER_LBR 0x71
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#define CY8CMBR3XXX_SLIDER_NNT 0x72
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#define CY8CMBR3XXX_SLIDER_NT 0x73
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#define CY8CMBR3XXX_SCRATCHPAD0 0x7A
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#define CY8CMBR3XXX_SCRATCHPAD1 0x7B
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#define CY8CMBR3XXX_CONFIG_CRC 0x7E
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#define CY8CMBR3XXX_GPO_OUTPUT_STATE 0x80
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#define CY8CMBR3XXX_SENSOR_ID 0x82
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#define CY8CMBR3XXX_CTRL_CMD 0x86
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#define CY8CMBR3XXX_CTRL_CMD_STATUS 0x88
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#define CY8CMBR3XXX_CTRL_CMD_ERR 0x89
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#define CY8CMBR3XXX_SYSTEM_STATUS 0x8A
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#define CY8CMBR3XXX_PREV_CTRL_CMD_CODE 0x8C
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#define CY8CMBR3XXX_FAMILY_ID 0x8F
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#define CY8CMBR3XXX_DEVICE_ID 0x90
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#define CY8CMBR3XXX_DEVICE_REV 0x92
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#define CY8CMBR3XXX_CALC_CRC 0x94
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#define CY8CMBR3XXX_TOTAL_WORKING_SNS 0x97
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#define CY8CMBR3XXX_SNS_CP_HIGH 0x98
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#define CY8CMBR3XXX_SNS_VDD_SHORT 0x9A
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#define CY8CMBR3XXX_SNS_GND_SHORT 0x9C
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#define CY8CMBR3XXX_SNS_SNS_SHORT 0x9E
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#define CY8CMBR3XXX_CMOD_SHIELD_TEST 0xA0
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#define CY8CMBR3XXX_BUTTON_STAT 0xAA
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#define CY8CMBR3XXX_LATCHED_BUTTON_STAT 0xAC
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#define CY8CMBR3XXX_PROX_STAT 0xAE
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#define CY8CMBR3XXX_LATCHED_PROX_STAT 0xAF
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#define CY8CMBR3XXX_SLIDER1_POSITION 0xB0
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#define CY8CMBR3XXX_LIFTOFF_SLIDER1_POSITION 0xB1
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#define CY8CMBR3XXX_SLIDER2_POSITION 0xB2
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#define CY8CMBR3XXX_LIFTOFF_SLIDER2_POSITION 0xB3
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#define CY8CMBR3XXX_SYNC_COUNTER0 0xB9
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#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR0 0xBA
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#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR1 0xBC
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#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR2 0xBE
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#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR3 0xC0
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#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR4 0xC2
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#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR5 0xC4
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#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR6 0xC6
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#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR7 0xC8
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#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR8 0xCA
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#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR9 0xCC
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#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR10 0xCE
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#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR11 0xD0
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#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR12 0xD2
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#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR13 0xD4
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#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR14 0xD6
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#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR15 0xD8
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#define CY8CMBR3XXX_GPO_DATA 0xDA
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#define CY8CMBR3XXX_SYNC_COUNTER1 0xDB
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#define CY8CMBR3XXX_DEBUG_SENSOR_ID 0xDC
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#define CY8CMBR3XXX_DEBUG_CP 0xDD
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#define CY8CMBR3XXX_DEBUG_DIFFERENCE_COUNT0 0xDE
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#define CY8CMBR3XXX_DEBUG_BASELINE0 0xE0
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#define CY8CMBR3XXX_DEBUG_RAW_COUNT0 0xE2
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#define CY8CMBR3XXX_DEBUG_AVG_RAW_COUNT0 0xE4
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#define CY8CMBR3XXX_SYNC_COUNTER2 0xE7
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#define CY8CMBR3XXX_CTRL_CMD_CALC_CRC 0x02
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#define CY8CMBR3XXX_CTRL_CMD_RESET 0xFF
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/* The controller wakes up from the low-power state on an address match but sends NACK
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* until it transitions into the Active state. When the device NACKs a transaction, the host is
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* expected to retry the transaction until it receives an ACK. Typically, no more than 3 retries are
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* necessary, depending on time between the interrupt and the first i2c transfer or if
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* no interrupt has caused the initiation of the communication.
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*/
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#define CY8CMBR3XXX_I2C_RETRIES 5
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struct cy8cmbr3xxx_config {
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struct i2c_dt_spec i2c;
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struct gpio_dt_spec int_gpio;
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struct gpio_dt_spec rst_gpio;
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const uint16_t *input_codes;
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uint8_t input_codes_count;
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const uint16_t *proximity_codes;
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uint8_t proximity_codes_count;
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};
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struct cy8cmbr3xxx_data {
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const struct device *dev;
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struct k_work work;
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struct gpio_callback int_gpio_cb;
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uint16_t prev_button_state;
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uint8_t prev_proximity_state;
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};
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static int cy8cmbr3xxx_i2c_read(const struct device *dev, uint8_t address, void *buf, size_t len)
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{
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const struct cy8cmbr3xxx_config *config = dev->config;
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int ret;
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for (int i = 0; i < CY8CMBR3XXX_I2C_RETRIES; i++) {
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ret = i2c_write_read_dt(&config->i2c, &address, sizeof(address), buf, len);
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if (ret == 0) {
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break;
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}
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}
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return ret;
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}
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static int cy8cmbr3xxx_i2c_write(const struct device *dev, uint8_t address, const void *buf,
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size_t len)
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{
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const struct cy8cmbr3xxx_config *config = dev->config;
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int ret;
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for (int i = 0; i < CY8CMBR3XXX_I2C_RETRIES; i++) {
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ret = i2c_burst_write_dt(&config->i2c, address, buf, len);
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if (ret == 0) {
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break;
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}
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}
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return ret;
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}
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static int cy8cmbr3xxx_wait_for_command_completion(const struct device *dev, k_timeout_t timeout)
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{
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uint8_t current_command;
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int ret;
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k_timepoint_t end = sys_timepoint_calc(timeout);
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do {
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/* Wait for the completion of the command. After a reset command, it can
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* happen that the device NACKs for some time.
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*/
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ret = cy8cmbr3xxx_i2c_read(dev, CY8CMBR3XXX_CTRL_CMD, ¤t_command,
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sizeof(uint8_t));
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/* As soon as current_command is 0x00, the command is completed */
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if (ret == 0 && current_command == 0x00) {
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return 0;
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}
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k_msleep(1);
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} while (!sys_timepoint_expired(end));
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LOG_ERR("Wait for command completion timed out");
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return -ETIMEDOUT;
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}
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int cy8cmbr3xxx_configure(const struct device *dev, const struct cy8cmbr3xxx_config_data *config)
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{
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int ret;
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uint8_t read_config[CY8CMBR3XXX_EZ_CLICK_CONFIG_SIZE];
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uint8_t command;
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if (config == NULL) {
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return -EINVAL;
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}
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/* Read the complete configuration */
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ret = cy8cmbr3xxx_i2c_read(dev, CY8CMBR3XXX_SENSOR_EN, read_config, sizeof(read_config));
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if (ret < 0) {
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LOG_ERR("Failed to read i2c (%d)", ret);
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return ret;
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}
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if (memcmp(read_config, config->data, sizeof(config->data)) == 0) {
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return 0;
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}
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/* Write the complete configuration of 128 bytes to the CY8CMBR3XXX controller */
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ret = cy8cmbr3xxx_i2c_write(dev, CY8CMBR3XXX_SENSOR_EN, config->data, sizeof(config->data));
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if (ret < 0) {
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LOG_ERR("Failed to write i2c (%d)", ret);
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return ret;
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}
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/* The device calculates a CRC checksum over the configuration data in this
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* register map and compares the result with the content of CONFIG_CRC. If the
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* two values match, the device saves the configuration and the CRC checksum to
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* nonvolatile memory.
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*/
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command = CY8CMBR3XXX_CTRL_CMD_CALC_CRC;
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ret = cy8cmbr3xxx_i2c_write(dev, CY8CMBR3XXX_CTRL_CMD, &command, 1);
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if (ret < 0) {
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LOG_ERR("Failed to write i2c (%d)", ret);
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return ret;
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}
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/* 600ms seems to be sufficient */
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ret = cy8cmbr3xxx_wait_for_command_completion(dev, K_MSEC(600));
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if (ret < 0) {
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LOG_ERR("Failed to wait for command completion (%d)", ret);
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return ret;
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}
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/* The device resets itself */
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command = CY8CMBR3XXX_CTRL_CMD_RESET;
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ret = cy8cmbr3xxx_i2c_write(dev, CY8CMBR3XXX_CTRL_CMD, &command, 1);
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if (ret < 0) {
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LOG_ERR("Failed to write i2c (%d)", ret);
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return ret;
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}
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ret = cy8cmbr3xxx_wait_for_command_completion(dev, K_MSEC(50));
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if (ret < 0) {
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LOG_ERR("Failed to wait for command completion (%d)", ret);
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return ret;
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}
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return 0;
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}
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static int cy8cmbr3xxx_process(const struct device *dev)
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{
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const struct cy8cmbr3xxx_config *config = dev->config;
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struct cy8cmbr3xxx_data *data = dev->data;
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int ret;
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uint16_t button_state, single_button_state;
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uint8_t proximity_state, single_proximity_state;
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/* Request button status */
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ret = cy8cmbr3xxx_i2c_read(dev, CY8CMBR3XXX_BUTTON_STAT, &button_state, sizeof(uint16_t));
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if (ret < 0) {
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LOG_ERR("Failed to read button status (%d)", ret);
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return ret;
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}
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for (uint8_t i = 0; i < config->input_codes_count; i++) {
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single_button_state = button_state & BIT(i);
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if (single_button_state != (data->prev_button_state & BIT(i))) {
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input_report_key(dev, config->input_codes[i], single_button_state, true,
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K_FOREVER);
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}
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}
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data->prev_button_state = button_state;
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/* Request proximity status */
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if (config->proximity_codes_count > 0) {
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ret = cy8cmbr3xxx_i2c_read(dev, CY8CMBR3XXX_PROX_STAT, &proximity_state,
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sizeof(uint8_t));
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if (ret < 0) {
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LOG_ERR("Failed to read proximity status (%d)", ret);
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return ret;
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}
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for (uint8_t i = 0; i < config->proximity_codes_count; i++) {
|
||||
single_proximity_state = proximity_state & BIT(i);
|
||||
if (single_proximity_state != (data->prev_proximity_state & BIT(i))) {
|
||||
input_report_key(dev, config->proximity_codes[i],
|
||||
single_proximity_state, true, K_FOREVER);
|
||||
}
|
||||
}
|
||||
data->prev_proximity_state = proximity_state;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void cy8cmbr3xxx_work_handler(struct k_work *work)
|
||||
{
|
||||
struct cy8cmbr3xxx_data *data = CONTAINER_OF(work, struct cy8cmbr3xxx_data, work);
|
||||
|
||||
cy8cmbr3xxx_process(data->dev);
|
||||
}
|
||||
|
||||
static void cy8cmbr3xxx_isr_handler(const struct device *dev, struct gpio_callback *cb,
|
||||
uint32_t pins)
|
||||
{
|
||||
struct cy8cmbr3xxx_data *data = CONTAINER_OF(cb, struct cy8cmbr3xxx_data, int_gpio_cb);
|
||||
|
||||
k_work_submit(&data->work);
|
||||
}
|
||||
|
||||
static void cy8cmbr3xxx_reset(const struct device *dev)
|
||||
{
|
||||
const struct cy8cmbr3xxx_config *config = dev->config;
|
||||
int ret;
|
||||
|
||||
if (!gpio_is_ready_dt(&config->rst_gpio)) {
|
||||
LOG_ERR("GPIO controller device not ready");
|
||||
return;
|
||||
}
|
||||
|
||||
ret = gpio_pin_configure_dt(&config->rst_gpio, GPIO_OUTPUT_ACTIVE);
|
||||
if (ret < 0) {
|
||||
LOG_ERR("Could not configure reset GPIO pin (%d)", ret);
|
||||
return;
|
||||
}
|
||||
|
||||
k_usleep(5);
|
||||
|
||||
ret = gpio_pin_set_dt(&config->rst_gpio, 0);
|
||||
if (ret < 0) {
|
||||
LOG_ERR("Could not set reset GPIO pin (%d)", ret);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
static int cy8cmbr3xxx_init(const struct device *dev)
|
||||
{
|
||||
const struct cy8cmbr3xxx_config *config = dev->config;
|
||||
struct cy8cmbr3xxx_data *data = dev->data;
|
||||
int ret;
|
||||
|
||||
data->dev = dev;
|
||||
|
||||
k_work_init(&data->work, cy8cmbr3xxx_work_handler);
|
||||
|
||||
if (!i2c_is_ready_dt(&config->i2c)) {
|
||||
LOG_ERR("I2C controller device not ready");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
cy8cmbr3xxx_reset(dev);
|
||||
|
||||
if (!gpio_is_ready_dt(&config->int_gpio)) {
|
||||
LOG_ERR("GPIO controller device not ready");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
ret = gpio_pin_configure_dt(&config->int_gpio, GPIO_INPUT);
|
||||
if (ret < 0) {
|
||||
LOG_ERR("Could not configure interrupt GPIO pin (%d)", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = gpio_pin_interrupt_configure_dt(&config->int_gpio, GPIO_INT_EDGE_TO_ACTIVE);
|
||||
if (ret < 0) {
|
||||
LOG_ERR("Could not configure GPIO interrupt (%d)", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
gpio_init_callback(&data->int_gpio_cb, cy8cmbr3xxx_isr_handler, BIT(config->int_gpio.pin));
|
||||
|
||||
ret = gpio_add_callback(config->int_gpio.port, &data->int_gpio_cb);
|
||||
if (ret < 0) {
|
||||
LOG_ERR("Could not set gpio callback (%d)", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#define CY8CMBR3XXX_INIT(inst) \
|
||||
static const uint16_t cy8cmbr3xxx_input_codes_##inst[] = DT_INST_PROP(inst, input_codes); \
|
||||
static const uint16_t cy8cmbr3xxx_proximity_codes_##inst[] = \
|
||||
DT_INST_PROP_OR(inst, proximity_codes, {}); \
|
||||
static const struct cy8cmbr3xxx_config cy8cmbr3xxx_config_##inst = { \
|
||||
.i2c = I2C_DT_SPEC_INST_GET(inst), \
|
||||
.int_gpio = GPIO_DT_SPEC_INST_GET(inst, int_gpios), \
|
||||
.rst_gpio = GPIO_DT_SPEC_INST_GET(inst, rst_gpios), \
|
||||
.input_codes = cy8cmbr3xxx_input_codes_##inst, \
|
||||
.input_codes_count = DT_INST_PROP_LEN(inst, input_codes), \
|
||||
.proximity_codes = cy8cmbr3xxx_proximity_codes_##inst, \
|
||||
.proximity_codes_count = DT_INST_PROP_LEN_OR(inst, proximity_codes, 0), \
|
||||
}; \
|
||||
static struct cy8cmbr3xxx_data cy8cmbr3xxx_data_##inst; \
|
||||
DEVICE_DT_INST_DEFINE(inst, cy8cmbr3xxx_init, NULL, &cy8cmbr3xxx_data_##inst, \
|
||||
&cy8cmbr3xxx_config_##inst, POST_KERNEL, CONFIG_INPUT_INIT_PRIORITY, \
|
||||
NULL);
|
||||
|
||||
DT_INST_FOREACH_STATUS_OKAY(CY8CMBR3XXX_INIT)
|
||||
35
dts/bindings/input/cypress,cy8cmbr3xxx.yaml
Normal file
35
dts/bindings/input/cypress,cy8cmbr3xxx.yaml
Normal file
|
|
@ -0,0 +1,35 @@
|
|||
# Copyright (c) 2025 Basalte bv
|
||||
# SPDX-License-Identifier: Apache-2.0
|
||||
|
||||
description: |
|
||||
Cypress CY8CMBR3002/3102/3106S/3108/3110/3116 capacitive touch sensor
|
||||
|
||||
compatible: "cypress,cy8cmbr3xxx"
|
||||
|
||||
include: i2c-device.yaml
|
||||
|
||||
properties:
|
||||
int-gpios:
|
||||
type: phandle-array
|
||||
required: true
|
||||
description: |
|
||||
The interrupt pin generates an active low pulse signal on
|
||||
any change in the CapSense sensor's status.
|
||||
|
||||
rst-gpios:
|
||||
type: phandle-array
|
||||
required: true
|
||||
description: |
|
||||
The reset pin resets the capsense controller with an active
|
||||
low reset pulse.
|
||||
|
||||
input-codes:
|
||||
type: array
|
||||
required: true
|
||||
description: |
|
||||
Array of input event key codes (INPUT_KEY_* or INPUT_BTN_*).
|
||||
|
||||
proximity-codes:
|
||||
type: array
|
||||
description: |
|
||||
Array of input event key codes (INPUT_KEY_* or INPUT_BTN_*).
|
||||
37
include/zephyr/input/cy8cmbr3xxx.h
Normal file
37
include/zephyr/input/cy8cmbr3xxx.h
Normal file
|
|
@ -0,0 +1,37 @@
|
|||
/*
|
||||
* Copyright (c) 2025 Basalte bv
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*/
|
||||
|
||||
#ifndef ZEPHYR_INCLUDE_INPUT_CY8CMBR3XXX_H_
|
||||
#define ZEPHYR_INCLUDE_INPUT_CY8CMBR3XXX_H_
|
||||
|
||||
#include <zephyr/types.h>
|
||||
|
||||
#define CY8CMBR3XXX_EZ_CLICK_CONFIG_SIZE 128
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif /* __cplusplus */
|
||||
|
||||
struct cy8cmbr3xxx_config_data {
|
||||
uint8_t data[CY8CMBR3XXX_EZ_CLICK_CONFIG_SIZE];
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief Configure the CY8CMBR3xxx device with an EZ-Click generated configuration.
|
||||
*
|
||||
* @param dev Pointer to the input device instance
|
||||
* @param config_data Pointer to the configuration data for the device
|
||||
*
|
||||
* @retval 0 if successful
|
||||
* @retval <0 if failed
|
||||
*/
|
||||
int cy8cmbr3xxx_configure(const struct device *dev,
|
||||
const struct cy8cmbr3xxx_config_data *config_data);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif /* __cplusplus */
|
||||
|
||||
#endif /* ZEPHYR_INCLUDE_INPUT_CY8CMBR3XXX_H_ */
|
||||
Loading…
Add table
Add a link
Reference in a new issue