diff --git a/drivers/input/CMakeLists.txt b/drivers/input/CMakeLists.txt index 9215060d8ad..ab28b03f03e 100644 --- a/drivers/input/CMakeLists.txt +++ b/drivers/input/CMakeLists.txt @@ -11,6 +11,7 @@ zephyr_library_sources_ifdef(CONFIG_INPUT_CAP12XX input_cap12xx.c) zephyr_library_sources_ifdef(CONFIG_INPUT_CF1133 input_cf1133.c) zephyr_library_sources_ifdef(CONFIG_INPUT_CHSC6X input_chsc6x.c) zephyr_library_sources_ifdef(CONFIG_INPUT_CST816S input_cst816s.c) +zephyr_library_sources_ifdef(CONFIG_INPUT_CY8CMBR3XXX input_cy8cmbr3xxx.c) zephyr_library_sources_ifdef(CONFIG_INPUT_ESP32_TOUCH_SENSOR input_esp32_touch_sensor.c) zephyr_library_sources_ifdef(CONFIG_INPUT_FT5336 input_ft5336.c) zephyr_library_sources_ifdef(CONFIG_INPUT_GPIO_KBD_MATRIX input_gpio_kbd_matrix.c) diff --git a/drivers/input/Kconfig b/drivers/input/Kconfig index 85a316ac12e..726916675b3 100644 --- a/drivers/input/Kconfig +++ b/drivers/input/Kconfig @@ -12,6 +12,7 @@ source "drivers/input/Kconfig.cap12xx" source "drivers/input/Kconfig.cf1133" source "drivers/input/Kconfig.chsc6x" source "drivers/input/Kconfig.cst816s" +source "drivers/input/Kconfig.cy8cmbr3xxx" source "drivers/input/Kconfig.esp32" source "drivers/input/Kconfig.evdev" source "drivers/input/Kconfig.ft5336" diff --git a/drivers/input/Kconfig.cy8cmbr3xxx b/drivers/input/Kconfig.cy8cmbr3xxx new file mode 100644 index 00000000000..d09702109d7 --- /dev/null +++ b/drivers/input/Kconfig.cy8cmbr3xxx @@ -0,0 +1,11 @@ +# Copyright (c) 2025 Basalte bv +# SPDX-License-Identifier: Apache-2.0 + +config INPUT_CY8CMBR3XXX + bool "CY8CMBR3XXX capacitive touch sensor driver" + default y + depends on DT_HAS_CYPRESS_CY8CMBR3XXX_ENABLED + select I2C + help + Enable driver for cypress CY8CMBR3XXX capacitive + touch sensor. diff --git a/drivers/input/input_cy8cmbr3xxx.c b/drivers/input/input_cy8cmbr3xxx.c new file mode 100644 index 00000000000..a724f0652e5 --- /dev/null +++ b/drivers/input/input_cy8cmbr3xxx.c @@ -0,0 +1,445 @@ +/* + * Copyright (c) 2025 Basalte bv + * + * SPDX-License-Identifier: Apache-2.0 + */ + +#define DT_DRV_COMPAT cypress_cy8cmbr3xxx + +#include +#include +#include +#include +#include + +LOG_MODULE_REGISTER(cy8cmbr3xxx, CONFIG_INPUT_LOG_LEVEL); + +#define CY8CMBR3XXX_SENSOR_EN 0x00 +#define CY8CMBR3XXX_FSS_EN 0x02 +#define CY8CMBR3XXX_TOGGLE_EN 0x04 +#define CY8CMBR3XXX_LED_ON_EN 0x06 +#define CY8CMBR3XXX_SENSITIVITY0 0x08 +#define CY8CMBR3XXX_SENSITIVITY1 0x09 +#define CY8CMBR3XXX_SENSITIVITY2 0x0A +#define CY8CMBR3XXX_SENSITIVITY3 0x0B +#define CY8CMBR3XXX_BASE_THRESHOLD0 0x0C +#define CY8CMBR3XXX_BASE_THRESHOLD1 0x0D +#define CY8CMBR3XXX_FINGER_THRESHOLD2 0x0E +#define CY8CMBR3XXX_FINGER_THRESHOLD3 0x0F +#define CY8CMBR3XXX_FINGER_THRESHOLD4 0x10 +#define CY8CMBR3XXX_FINGER_THRESHOLD5 0x11 +#define CY8CMBR3XXX_FINGER_THRESHOLD6 0x12 +#define CY8CMBR3XXX_FINGER_THRESHOLD7 0x13 +#define CY8CMBR3XXX_FINGER_THRESHOLD8 0x14 +#define CY8CMBR3XXX_FINGER_THRESHOLD9 0x15 +#define CY8CMBR3XXX_FINGER_THRESHOLD10 0x16 +#define CY8CMBR3XXX_FINGER_THRESHOLD11 0x17 +#define CY8CMBR3XXX_FINGER_THRESHOLD12 0x18 +#define CY8CMBR3XXX_FINGER_THRESHOLD13 0x19 +#define CY8CMBR3XXX_FINGER_THRESHOLD14 0x1A +#define CY8CMBR3XXX_FINGER_THRESHOLD15 0x1B +#define CY8CMBR3XXX_SENSOR_DEBOUNCE 0x1C +#define CY8CMBR3XXX_BUTTON_HYS 0x1D +#define CY8CMBR3XXX_BUTTON_LBR 0x1F +#define CY8CMBR3XXX_BUTTON_NNT 0x20 +#define CY8CMBR3XXX_BUTTON_NT 0x21 +#define CY8CMBR3XXX_PROX_EN 0x26 +#define CY8CMBR3XXX_PROX_CFG 0x27 +#define CY8CMBR3XXX_PROX_CFG2 0x28 +#define CY8CMBR3XXX_PROX_TOUCH_TH0 0x2A +#define CY8CMBR3XXX_PROX_TOUCH_TH1 0x2C +#define CY8CMBR3XXX_PROX_RESOLUTION0 0x2E +#define CY8CMBR3XXX_PROX_RESOLUTION1 0x2F +#define CY8CMBR3XXX_PROX_HYS 0x30 +#define CY8CMBR3XXX_PROX_LBR 0x32 +#define CY8CMBR3XXX_PROX_NNT 0x33 +#define CY8CMBR3XXX_PROX_NT 0x34 +#define CY8CMBR3XXX_PROX_POSITIVE_TH0 0x35 +#define CY8CMBR3XXX_PROX_POSITIVE_TH1 0x36 +#define CY8CMBR3XXX_PROX_NEGATIVE_TH0 0x39 +#define CY8CMBR3XXX_PROX_NEGATIVE_TH1 0x3A +#define CY8CMBR3XXX_LED_ON_TIME 0x3D +#define CY8CMBR3XXX_BUZZER_CFG 0x3E +#define CY8CMBR3XXX_BUZZER_ON_TIME 0x3F +#define CY8CMBR3XXX_GPO_CFG 0x40 +#define CY8CMBR3XXX_PWM_DUTYCYCLE_CFG0 0x41 +#define CY8CMBR3XXX_PWM_DUTYCYCLE_CFG1 0x42 +#define CY8CMBR3XXX_PWM_DUTYCYCLE_CFG2 0x43 +#define CY8CMBR3XXX_PWM_DUTYCYCLE_CFG3 0x44 +#define CY8CMBR3XXX_PWM_DUTYCYCLE_CFG4 0x45 +#define CY8CMBR3XXX_PWM_DUTYCYCLE_CFG5 0x46 +#define CY8CMBR3XXX_PWM_DUTYCYCLE_CFG6 0x47 +#define CY8CMBR3XXX_PWM_DUTYCYCLE_CFG7 0x48 +#define CY8CMBR3XXX_SPO_CFG 0x4C +#define CY8CMBR3XXX_DEVICE_CFG0 0x4D +#define CY8CMBR3XXX_DEVICE_CFG1 0x4E +#define CY8CMBR3XXX_DEVICE_CFG2 0x4F +#define CY8CMBR3XXX_DEVICE_CFG3 0x50 +#define CY8CMBR3XXX_I2C_ADDR 0x51 +#define CY8CMBR3XXX_REFRESH_CTRL 0x52 +#define CY8CMBR3XXX_STATE_TIMEOUT 0x55 +#define CY8CMBR3XXX_SLIDER_CFG 0x5D +#define CY8CMBR3XXX_SLIDER1_CFG 0x61 +#define CY8CMBR3XXX_SLIDER1_RESOLUTION 0x62 +#define CY8CMBR3XXX_SLIDER1_THRESHOLD 0x63 +#define CY8CMBR3XXX_SLIDER2_CFG 0x67 +#define CY8CMBR3XXX_SLIDER2_RESOLUTION 0x68 +#define CY8CMBR3XXX_SLIDER2_THRESHOLD 0x69 +#define CY8CMBR3XXX_SLIDER_LBR 0x71 +#define CY8CMBR3XXX_SLIDER_NNT 0x72 +#define CY8CMBR3XXX_SLIDER_NT 0x73 +#define CY8CMBR3XXX_SCRATCHPAD0 0x7A +#define CY8CMBR3XXX_SCRATCHPAD1 0x7B +#define CY8CMBR3XXX_CONFIG_CRC 0x7E +#define CY8CMBR3XXX_GPO_OUTPUT_STATE 0x80 +#define CY8CMBR3XXX_SENSOR_ID 0x82 +#define CY8CMBR3XXX_CTRL_CMD 0x86 +#define CY8CMBR3XXX_CTRL_CMD_STATUS 0x88 +#define CY8CMBR3XXX_CTRL_CMD_ERR 0x89 +#define CY8CMBR3XXX_SYSTEM_STATUS 0x8A +#define CY8CMBR3XXX_PREV_CTRL_CMD_CODE 0x8C +#define CY8CMBR3XXX_FAMILY_ID 0x8F +#define CY8CMBR3XXX_DEVICE_ID 0x90 +#define CY8CMBR3XXX_DEVICE_REV 0x92 +#define CY8CMBR3XXX_CALC_CRC 0x94 +#define CY8CMBR3XXX_TOTAL_WORKING_SNS 0x97 +#define CY8CMBR3XXX_SNS_CP_HIGH 0x98 +#define CY8CMBR3XXX_SNS_VDD_SHORT 0x9A +#define CY8CMBR3XXX_SNS_GND_SHORT 0x9C +#define CY8CMBR3XXX_SNS_SNS_SHORT 0x9E +#define CY8CMBR3XXX_CMOD_SHIELD_TEST 0xA0 +#define CY8CMBR3XXX_BUTTON_STAT 0xAA +#define CY8CMBR3XXX_LATCHED_BUTTON_STAT 0xAC +#define CY8CMBR3XXX_PROX_STAT 0xAE +#define CY8CMBR3XXX_LATCHED_PROX_STAT 0xAF +#define CY8CMBR3XXX_SLIDER1_POSITION 0xB0 +#define CY8CMBR3XXX_LIFTOFF_SLIDER1_POSITION 0xB1 +#define CY8CMBR3XXX_SLIDER2_POSITION 0xB2 +#define CY8CMBR3XXX_LIFTOFF_SLIDER2_POSITION 0xB3 +#define CY8CMBR3XXX_SYNC_COUNTER0 0xB9 +#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR0 0xBA +#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR1 0xBC +#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR2 0xBE +#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR3 0xC0 +#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR4 0xC2 +#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR5 0xC4 +#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR6 0xC6 +#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR7 0xC8 +#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR8 0xCA +#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR9 0xCC +#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR10 0xCE +#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR11 0xD0 +#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR12 0xD2 +#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR13 0xD4 +#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR14 0xD6 +#define CY8CMBR3XXX_DIFFERENCE_COUNT_SENSOR15 0xD8 +#define CY8CMBR3XXX_GPO_DATA 0xDA +#define CY8CMBR3XXX_SYNC_COUNTER1 0xDB +#define CY8CMBR3XXX_DEBUG_SENSOR_ID 0xDC +#define CY8CMBR3XXX_DEBUG_CP 0xDD +#define CY8CMBR3XXX_DEBUG_DIFFERENCE_COUNT0 0xDE +#define CY8CMBR3XXX_DEBUG_BASELINE0 0xE0 +#define CY8CMBR3XXX_DEBUG_RAW_COUNT0 0xE2 +#define CY8CMBR3XXX_DEBUG_AVG_RAW_COUNT0 0xE4 +#define CY8CMBR3XXX_SYNC_COUNTER2 0xE7 + +#define CY8CMBR3XXX_CTRL_CMD_CALC_CRC 0x02 +#define CY8CMBR3XXX_CTRL_CMD_RESET 0xFF + +/* The controller wakes up from the low-power state on an address match but sends NACK + * until it transitions into the Active state. When the device NACKs a transaction, the host is + * expected to retry the transaction until it receives an ACK. Typically, no more than 3 retries are + * necessary, depending on time between the interrupt and the first i2c transfer or if + * no interrupt has caused the initiation of the communication. + */ +#define CY8CMBR3XXX_I2C_RETRIES 5 + +struct cy8cmbr3xxx_config { + struct i2c_dt_spec i2c; + struct gpio_dt_spec int_gpio; + struct gpio_dt_spec rst_gpio; + const uint16_t *input_codes; + uint8_t input_codes_count; + const uint16_t *proximity_codes; + uint8_t proximity_codes_count; +}; + +struct cy8cmbr3xxx_data { + const struct device *dev; + struct k_work work; + struct gpio_callback int_gpio_cb; + uint16_t prev_button_state; + uint8_t prev_proximity_state; +}; + +static int cy8cmbr3xxx_i2c_read(const struct device *dev, uint8_t address, void *buf, size_t len) +{ + const struct cy8cmbr3xxx_config *config = dev->config; + int ret; + + for (int i = 0; i < CY8CMBR3XXX_I2C_RETRIES; i++) { + ret = i2c_write_read_dt(&config->i2c, &address, sizeof(address), buf, len); + if (ret == 0) { + break; + } + } + + return ret; +} + +static int cy8cmbr3xxx_i2c_write(const struct device *dev, uint8_t address, const void *buf, + size_t len) +{ + const struct cy8cmbr3xxx_config *config = dev->config; + int ret; + + for (int i = 0; i < CY8CMBR3XXX_I2C_RETRIES; i++) { + ret = i2c_burst_write_dt(&config->i2c, address, buf, len); + if (ret == 0) { + break; + } + } + + return ret; +} + +static int cy8cmbr3xxx_wait_for_command_completion(const struct device *dev, k_timeout_t timeout) +{ + uint8_t current_command; + int ret; + k_timepoint_t end = sys_timepoint_calc(timeout); + + do { + /* Wait for the completion of the command. After a reset command, it can + * happen that the device NACKs for some time. + */ + ret = cy8cmbr3xxx_i2c_read(dev, CY8CMBR3XXX_CTRL_CMD, ¤t_command, + sizeof(uint8_t)); + + /* As soon as current_command is 0x00, the command is completed */ + if (ret == 0 && current_command == 0x00) { + return 0; + } + + k_msleep(1); + } while (!sys_timepoint_expired(end)); + + LOG_ERR("Wait for command completion timed out"); + + return -ETIMEDOUT; +} + +int cy8cmbr3xxx_configure(const struct device *dev, const struct cy8cmbr3xxx_config_data *config) +{ + int ret; + uint8_t read_config[CY8CMBR3XXX_EZ_CLICK_CONFIG_SIZE]; + uint8_t command; + + if (config == NULL) { + return -EINVAL; + } + + /* Read the complete configuration */ + ret = cy8cmbr3xxx_i2c_read(dev, CY8CMBR3XXX_SENSOR_EN, read_config, sizeof(read_config)); + if (ret < 0) { + LOG_ERR("Failed to read i2c (%d)", ret); + return ret; + } + + if (memcmp(read_config, config->data, sizeof(config->data)) == 0) { + return 0; + } + + /* Write the complete configuration of 128 bytes to the CY8CMBR3XXX controller */ + ret = cy8cmbr3xxx_i2c_write(dev, CY8CMBR3XXX_SENSOR_EN, config->data, sizeof(config->data)); + if (ret < 0) { + LOG_ERR("Failed to write i2c (%d)", ret); + return ret; + } + + /* The device calculates a CRC checksum over the configuration data in this + * register map and compares the result with the content of CONFIG_CRC. If the + * two values match, the device saves the configuration and the CRC checksum to + * nonvolatile memory. + */ + command = CY8CMBR3XXX_CTRL_CMD_CALC_CRC; + ret = cy8cmbr3xxx_i2c_write(dev, CY8CMBR3XXX_CTRL_CMD, &command, 1); + if (ret < 0) { + LOG_ERR("Failed to write i2c (%d)", ret); + return ret; + } + + /* 600ms seems to be sufficient */ + ret = cy8cmbr3xxx_wait_for_command_completion(dev, K_MSEC(600)); + if (ret < 0) { + LOG_ERR("Failed to wait for command completion (%d)", ret); + return ret; + } + + /* The device resets itself */ + command = CY8CMBR3XXX_CTRL_CMD_RESET; + ret = cy8cmbr3xxx_i2c_write(dev, CY8CMBR3XXX_CTRL_CMD, &command, 1); + if (ret < 0) { + LOG_ERR("Failed to write i2c (%d)", ret); + return ret; + } + + ret = cy8cmbr3xxx_wait_for_command_completion(dev, K_MSEC(50)); + if (ret < 0) { + LOG_ERR("Failed to wait for command completion (%d)", ret); + return ret; + } + + return 0; +} + +static int cy8cmbr3xxx_process(const struct device *dev) +{ + const struct cy8cmbr3xxx_config *config = dev->config; + struct cy8cmbr3xxx_data *data = dev->data; + int ret; + uint16_t button_state, single_button_state; + uint8_t proximity_state, single_proximity_state; + + /* Request button status */ + ret = cy8cmbr3xxx_i2c_read(dev, CY8CMBR3XXX_BUTTON_STAT, &button_state, sizeof(uint16_t)); + if (ret < 0) { + LOG_ERR("Failed to read button status (%d)", ret); + return ret; + } + + for (uint8_t i = 0; i < config->input_codes_count; i++) { + single_button_state = button_state & BIT(i); + if (single_button_state != (data->prev_button_state & BIT(i))) { + input_report_key(dev, config->input_codes[i], single_button_state, true, + K_FOREVER); + } + } + data->prev_button_state = button_state; + + /* Request proximity status */ + if (config->proximity_codes_count > 0) { + ret = cy8cmbr3xxx_i2c_read(dev, CY8CMBR3XXX_PROX_STAT, &proximity_state, + sizeof(uint8_t)); + if (ret < 0) { + LOG_ERR("Failed to read proximity status (%d)", ret); + return ret; + } + + 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) diff --git a/dts/bindings/input/cypress,cy8cmbr3xxx.yaml b/dts/bindings/input/cypress,cy8cmbr3xxx.yaml new file mode 100644 index 00000000000..3b62b5b043f --- /dev/null +++ b/dts/bindings/input/cypress,cy8cmbr3xxx.yaml @@ -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_*). diff --git a/include/zephyr/input/cy8cmbr3xxx.h b/include/zephyr/input/cy8cmbr3xxx.h new file mode 100644 index 00000000000..a2e3518f166 --- /dev/null +++ b/include/zephyr/input/cy8cmbr3xxx.h @@ -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 + +#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_ */