163 lines
4.9 KiB
C
163 lines
4.9 KiB
C
/* sensor_isl29035.h - header file for ISL29035 light sensor driver */
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/*
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* Copyright (c) 2016 Intel Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _SENSOR_ISL29035_H_
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#define _SENSOR_ISL29035_H_
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#include <device.h>
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#include <nanokernel.h>
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#include <sensor.h>
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#include <gpio.h>
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#include <misc/nano_work.h>
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#define ISL29035_I2C_ADDRESS 0x44
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#define ISL29035_COMMAND_I_REG 0x00
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#define ISL29035_OPMODE_SHIFT 5
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#define ISL29035_OPMODE_MASK (7 << ISL29035_OPMODE_SHIFT)
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#define ISL29035_INT_BIT_SHIFT 2
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#define ISL29035_INT_BIT_MASK (1 << ISL29035_INT_BIT_SHIFT)
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#define ISL29035_INT_PRST_SHIFT 0
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#define ISL29035_INT_PRST_MASK (3 << ISL29035_INT_BIT_SHIFT)
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#define ISL29035_OPMODE_OFF 0
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#define ISL29035_OPMODE_ALS_ONCE 1
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#define ISL29035_OPMODE_IR_ONCE 2
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#define ISL29035_OPMODE_ALS_CONT 5
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#define ISL29035_OPMODE_IR_CONT 6
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#define ISL29035_COMMAND_II_REG 0x01
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#define ISL29035_LUX_RANGE_SHIFT 0
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#define ISL29035_LUX_RANGE_MASK (3 << ISL29035_LUX_RANGE_SHIFT)
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#define ISL29035_ADC_RES_SHIFT 2
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#define ISL29035_ADC_RES_MASK (3 << ISL29035_ADC_RES_SHIFT)
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#define ISL29035_DATA_LSB_REG 0x02
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#define ISL29035_DATA_MSB_REG 0x03
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#define ISL29035_INT_LT_LSB_REG 0x04
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#define ISL29035_INT_LT_MSB_REG 0x05
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#define ISL29035_INT_HT_LSB_REG 0x06
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#define ISL29035_INT_HT_MSB_REG 0x07
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#define ISL29035_ID_REG 0x0F
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#define ISL29035_BOUT_SHIFT 7
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#define ISL29035_BOUT_MASK (1 << ISL29035_BOUT_SHIFT)
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#define ISL29035_ID_SHIFT 3
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#define ISL29035_ID_MASK (3 << ISL29035_ID_SHIFT)
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#if CONFIG_ISL29035_MODE_ALS
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#define ISL29035_ACTIVE_OPMODE ISL29035_OPMODE_ALS_CONT
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#define ISL29035_ACTIVE_CHAN SENSOR_CHAN_LIGHT
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#elif CONFIG_ISL29035_MODE_IR
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#define ISL29035_ACTIVE_OPMODE ISL29035_OPMODE_IR_CONT
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#define ISL29035_ACTIVE_CHAN SENSOR_CHAN_IR
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#endif
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#define ISL29035_ACTIVE_OPMODE_BITS \
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(ISL29035_ACTIVE_OPMODE << ISL29035_OPMODE_SHIFT)
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#if CONFIG_ISL29035_LUX_RANGE_1K
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#define ISL29035_LUX_RANGE_IDX 0
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#define ISL29035_LUX_RANGE 1000
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#elif CONFIG_ISL29035_LUX_RANGE_4
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#define ISL29035_LUX_RANGE_IDX 1
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#define ISL29035_LUX_RANGE 4000
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#elif CONFIG_ISL29035_LUX_RANGE_16K
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#define ISL29035_LUX_RANGE_IDX 2
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#define ISL29035_LUX_RANGE 16000
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#elif CONFIG_ISL29035_LUX_RANGE_64K
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#define ISL29035_LUX_RANGE_IDX 3
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#define ISL29035_LUX_RANGE 64000
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#endif
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#define ISL29035_LUX_RANGE_BITS \
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(ISL29035_LUX_RANGE_IDX << ISL29035_LUX_RANGE_SHIFT)
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#if CONFIG_ISL29035_INTEGRATION_TIME_26
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#define ISL29035_ADC_RES_IDX 3
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#elif CONFIG_ISL29035_INTEGRATION_TIME_410
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#define ISL29035_ADC_RES_IDX 2
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#elif CONFIG_ISL29035_INTEGRATION_TIME_6500
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#define ISL29035_ADC_RES_IDX 1
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#elif CONFIG_ISL29035_INTEGRATION_TIME_105K
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#define ISL29035_ADC_RES_IDX 0
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#endif
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#define ISL29035_ADC_RES_BITS \
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(ISL29035_ADC_RES_IDX << ISL29035_ADC_RES_SHIFT)
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#define ISL29035_ADC_DATA_BITS (16 - 4 * ISL29035_ADC_RES_IDX)
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#define ISL29035_ADC_DATA_MASK (0xFFFF >> (16 - ISL29035_ADC_DATA_BITS))
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#if CONFIG_ISL29035_INT_PERSIST_1
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#define ISL29035_INT_PRST_IDX 0
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#define ISL29035_INT_PRST_CYCLES 1
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#elif CONFIG_ISL29035_INT_PERSIST_4
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#define ISL29035_INT_PRST_IDX 1
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#define ISL29035_INT_PRST_CYCLES 4
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#elif CONFIG_ISL29035_INT_PERSIST_8
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#define ISL29035_INT_PRST_IDX 2
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#define ISL29035_INT_PRST_CYCLES 8
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#elif CONFIG_ISL29035_INT_PERSIST_16
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#define ISL29035_INT_PRST_IDX 3
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#define ISL29035_INT_PRST_CYCLES 16
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#endif
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#define ISL29035_INT_PRST_BITS \
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(ISL29035_INT_PRST_IDX << ISL29035_INT_PRST_SHIFT)
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struct isl29035_driver_data {
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struct device *i2c;
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uint16_t data_sample;
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#if CONFIG_ISL29035_TRIGGER
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struct device *gpio;
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struct gpio_callback gpio_cb;
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struct sensor_trigger th_trigger;
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sensor_trigger_handler_t th_handler;
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#if defined(CONFIG_ISL29035_TRIGGER_OWN_FIBER)
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char __stack fiber_stack[CONFIG_ISL29035_FIBER_STACK_SIZE];
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struct nano_sem gpio_sem;
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#elif defined(CONFIG_ISL29035_TRIGGER_GLOBAL_FIBER)
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struct nano_work work;
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struct device *dev;
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#endif
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#endif /* CONFIG_ISL29035_TRIGGER */
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};
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#ifdef CONFIG_ISL29035_TRIGGER
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int isl29035_attr_set(struct device *dev,
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enum sensor_channel chan,
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enum sensor_attribute attr,
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const struct sensor_value *val);
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int isl29035_trigger_set(struct device *dev,
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const struct sensor_trigger *trig,
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sensor_trigger_handler_t handler);
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int isl29035_init_interrupt(struct device *dev);
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#endif
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#define SYS_LOG_DOMAIN "ISL29035"
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#define SYS_LOG_LEVEL CONFIG_ISL29035_SYS_LOG_LEVEL
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#include <misc/sys_log.h>
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#endif /* _SENSOR_ISL29035_H_ */
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