| /* |
| * Copyright (c) 2024 MASSDRIVER EI (massdriver.space) |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #ifndef ZEPHYR_DRIVERS_SENSOR_XBR818_XBR818_H_ |
| #define ZEPHYR_DRIVERS_SENSOR_XBR818_XBR818_H_ |
| |
| #include <stdint.h> |
| #include <zephyr/drivers/gpio.h> |
| #include <zephyr/drivers/sensor.h> |
| #include <zephyr/kernel.h> |
| |
| /* 32Khz clockrate, most time values are multiple of this */ |
| #define SENSOR_XBR818_CLOCKRATE 32000 |
| |
| struct xbr818_config { |
| struct i2c_dt_spec i2c; |
| struct gpio_dt_spec i2c_en; |
| struct gpio_dt_spec io_val; |
| }; |
| |
| struct xbr818_data { |
| bool value; |
| uint32_t trigger_type; |
| sensor_trigger_handler_t handler; |
| struct gpio_callback gpio_cb; |
| const struct sensor_trigger *trigger; |
| const struct device *dev; |
| struct k_work work; |
| }; |
| |
| /* reference rd-04 module manual for more information */ |
| /* [0-2]: power of PA |
| * [4-6]: mixer trim |
| */ |
| #define XBR818_RF_POWER 0x03 |
| #define XBR818_RF_EN_SEL 0x04 |
| /* minimum value of 2 */ |
| #define XBR818_SAMPLE_RATE_DIVIDER 0x10 |
| /* [0]: enable detection |
| * [1-2]: readable data. 0: det_dc_sum 1: det_ac_sum 2: det_dc_used 3: det_noise |
| * [3]: enable read on 0x28-0x29 |
| * [4]: signal detection threshold. 0: auto by pin 1: register |
| * [7]: enable read on 0x26-0x29 |
| */ |
| #define XBR818_I2C_OUT 0x13 |
| /* Threshold for detection |
| * [0-7] |
| */ |
| #define XBR818_THRESHOLD_1 0x18 |
| /* [8-15] */ |
| #define XBR818_THRESHOLD_2 0x19 |
| /* Threshold for noise |
| * [0-7] |
| */ |
| #define XBR818_THRESHOLD_NOISE_1 0x1A |
| /* [8-15] */ |
| #define XBR818_THRESHOLD_NOISE_2 0x1B |
| /* Delay Time (in 1/32000 seconds) |
| * [0-7] |
| */ |
| #define XBR818_DELAY_TIME_1 0x1D |
| /* [8-15] */ |
| #define XBR818_DELAY_TIME_2 0x1E |
| /* [16-23] */ |
| #define XBR818_DELAY_TIME_3 0x1F |
| /* [0]: enable |
| * [1-2]: light sensor timer. 0: disabled 1: 4 sec 2: 1 minute 3: 1 hour |
| * [3-4]: output timer. 0: 1 sec 1: 1 minute 2: 1 hour 3: 1 day |
| * [5]: delay time. 0: 'configure by pin' 1: configure by register |
| */ |
| #define XBR818_TIMER_CTRL 0x1C |
| /* Lock Time (in 1/32000 seconds) |
| * [0-7] |
| */ |
| #define XBR818_LOCK_TIME_1 0x20 |
| /* [8-15] */ |
| #define XBR818_LOCK_TIME_2 0x21 |
| /* [16-23] */ |
| #define XBR818_LOCK_TIME_3 0x22 |
| /* Pin settings |
| * [0-3]: IO_VAL pin |
| * 0xc: io_value_out, 0xd: io_value_out inverted, 0xf: GPIO |
| * [4-7]: INT_IRQ pin |
| * 0x0: t3_int_irq, 0x9: io_value_out, 0xa: io_value_out inverted, 0xf: GPIO |
| */ |
| #define XBR818_PIN_SETTINGS 0x23 |
| /* [0]: ADC1 is configured for VCO trimming. 0: enable, 1: disable |
| * [1]: Low power mode is pin or register. 0: pin 1: register |
| * [2]: If IO_VAL pin is GPIO, output. 0: no 1: yes |
| * [3]: if INT_IRQ pin is GPIO, output. 0:no 1:yes |
| */ |
| #define XBR818_IO_ACTIVE_VALUE_REG 0x24 |
| |
| #endif /* ZEPHYR_DRIVERS_SENSOR_XBR818_XBR818_H_ */ |
