233 lines
7.2 KiB
C
233 lines
7.2 KiB
C
/**
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* Copyright (c) 2017 - 2020, Nordic Semiconductor ASA
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
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* such product, must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef SX1509B_INTERNAL_H
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#define SX1509B_INTERNAL_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Device and IO banks registers.
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*/
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typedef enum
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{
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SX1509B_REG_INPUT_DISABLE_B,
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SX1509B_REG_INPUT_DISABLE_A,
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SX1509B_REG_LONG_SLEW_B,
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SX1509B_REG_LONG_SLEW_A,
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SX1509B_REG_LOW_DRIVE_B,
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SX1509B_REG_LOW_DRIVE_A,
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SX1509B_REG_PULL_UP_B,
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SX1509B_REG_PULL_UP_A,
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SX1509B_REG_PULL_DOWN_B,
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SX1509B_REG_PULL_DOWN_A,
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SX1509B_REG_OPEN_DRAIN_B,
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SX1509B_REG_OPEN_DRAIN_A,
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SX1509B_REG_POLARITY_B,
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SX1509B_REG_POLARITY_A,
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SX1509B_REG_DIR_B,
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SX1509B_REG_DIR_A,
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SX1509B_REG_DATA_B,
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SX1509B_REG_DATA_A,
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SX1509B_REG_INT_MASK_B,
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SX1509B_REG_INT_MASK_A,
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SX1509B_REG_SENSE_H_B,
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SX1509B_REG_SENSE_L_B,
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SX1509B_REG_SENSE_H_A,
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SX1509B_REG_SENSE_L_A,
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SX1509B_REG_INT_SRC_B,
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SX1509B_REG_INT_SRC_A,
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SX1509B_REG_EVENT_STATUS_B,
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SX1509B_REG_EVENT_STATUS_A,
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SX1509B_REG_LEVEL_SHIFTER_1,
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SX1509B_REG_LEVEL_SHIFTER_2,
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SX1509B_REG_CLOCK,
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SX1509B_REG_MISC,
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SX1509B_REG_LED_DRV_ENABLE_B,
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SX1509B_REG_LED_DRV_ENABLE_A,
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SX1509B_REG_DEBOUNCE_CONFIG,
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SX1509B_REG_DEBOUNCE_EN_B,
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SX1509B_REG_DEBOUNCE_EN_A,
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SX1509B_REG_KEY_CONFIG_1,
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SX1509B_REG_KEY_CONFIG_2,
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SX1509B_REG_KEY_DATA_1,
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SX1509B_REG_KEY_DATA_2,
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SX1509B_REG_COUNT
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} sx1509b_registers_t;
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#define SX1509B_INNER_PIN_COUNT 16
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#define SX1509B_INNER_NEXT_BANK 8
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#define SX1509B_INNER_PORT_COUNT 2
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#define SX1509B_INNER_SENSE_REG_NUM 4
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#define SX1509B_INNER_RESET_BYTE1 0x12
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#define SX1509B_INNER_RESET_BYTE2 0x34
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/**
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* @brief LED Driver registers.
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*/
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#define SX1509B_REG_LED_BANK_A_START 0x29
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#define SX1509B_REG_LED_FADE_A_START 0x35
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#define SX1509B_REG_LED_BANK_B_START 0x49
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#define SX1509B_REG_LED_FADE_B_START 0x55
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#define SX1509B_LED_DRIVER_TIME_REG_LEN 3
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#define SX1509B_LED_DRIVER_FADE_REG_LEN 5
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#define SX1509B_LED_DRIVER_TIME_REG_NUM ((SX1509B_REG_LED_FADE_A_START \
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- SX1509B_REG_LED_BANK_A_START) \
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/ SX1509B_LED_DRIVER_TIME_REG_LEN)
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#define SX1509B_LED_DRIVER_FADE_REG_NUM ((SX1509B_REG_LED_BANK_B_START \
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- SX1509B_REG_LED_FADE_A_START) \
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/ SX1509B_LED_DRIVER_FADE_REG_LEN)
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/**
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* @brief Clock register bitmasks.
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*/
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// Bitmasks for osc src.
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#define SX1509B_OSC_SRC_POS 5
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#define SX1509B_OSC_SRC_MASK (3 << SX1509B_OSC_SRC_POS)
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// Bitmasks for oscio pin.
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#define SX1509B_OSCIO_PIN_POS 4
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#define SX1509B_OSCIO_PIN_MASK (1 << SX1509B_OSCIO_PIN_POS)
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// Bitmasks for oscout freq.
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#define SX1509B_OSCOUT_FREQ_POS 0
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#define SX1509B_OSCOUT_FREQ_MASK (0x0F << SX1509B_OSCOUT_FREQ_POS)
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/**
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* @brief Miscellaneous register bitmasks.
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*/
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// Bitmasks for led mode b.
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#define SX1509B_LED_MODE_B_POS 7
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#define SX1509B_LED_MODE_B_MASK (1 << SX1509B_LED_MODE_B_POS)
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// Bitmasks for led freq.
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#define SX1509B_LED_FREQ_POS 4
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#define SX1509B_LED_FREQ_MASK (7 << SX1509B_LED_FREQ_POS)
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// Bitmasks for led mode a.
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#define SX1509B_LED_MODE_A_POS 3
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#define SX1509B_LED_MODE_A_MASK (1 << SX1509B_LED_MODE_A_POS)
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// Bitmasks for nreset pin.
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#define SX1509B_NRESET_PIN_POS 2
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#define SX1509B_NRESET_PIN_MASK (1 << SX1509B_NRESET_PIN_POS)
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// Bitmasks for auto incr.
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#define SX1509B_AUTO_INCR_POS 1
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#define SX1509B_AUTO_INCR_MASK (1 << SX1509B_AUTO_INCR_POS)
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// Bitmasks for auto clear nint.
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#define SX1509B_AUTO_CLEAR_NINT_POS 0
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#define SX1509B_AUTO_CLEAR_NINT_MASK (1 << SX1509B_AUTO_CLEAR_NINT_POS)
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/**
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* @brief Key config 1 register bitmasks.
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*/
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// Bitmasks for sleep time.
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#define SX1509B_SLEEP_TIME_POS 4
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#define SX1509B_SLEEP_TIME_MASK (7 << SX1509B_SLEEP_TIME_POS)
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// Bitmasks for scan time.
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#define SX1509B_SCAN_TIME_POS 0
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#define SX1509B_SCAN_TIME_MASK (7 << SX1509B_SCAN_TIME_POS)
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/**
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* @brief Key config 2 register bitmasks.
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*/
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// Bitmasks for row num.
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#define SX1509B_ROW_NUM_POS 3
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#define SX1509B_ROW_NUM_MASK (7 << SX1509B_ROW_NUM_POS)
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// Bitmasks for col num.
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#define SX1509B_COL_NUM_POS 0
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#define SX1509B_COL_NUM_MASK (7 << SX1509B_COL_NUM_POS)
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/**
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* @brief Led driver off register bitmasks.
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*/
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// Bitmasks for OFF_TIME.
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#define SX1509B_OFF_TIME_POS 3
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#define SX1509B_OFF_TIME_MASK (0x1F << SX1509B_OFF_TIME_POS)
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// Bitmasks for off intensity.
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#define SX1509B_OFF_INTENSITY_POS 0
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#define SX1509B_OFF_INTENSITY_MASK (7 << SX1509B_OFF_INTENSITY_POS)
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/**
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* @brief Miscellaneous registers.
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*/
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#define SX1509B_REG_HIGH_INPUT_B 0x69
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#define SX1509B_REG_HIGH_INPUT_A 0x6A
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#define SX1509B_REG_SW_RESET 0x7D
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#define SX1509B_REG_TEST_1 0x7E
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#define SX1509B_REG_TEST_2 0x7F
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/**
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* @brief Structure containing expander instance.
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*/
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typedef struct
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{
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nrf_twi_sensor_t * p_sensor_data;
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uint8_t sensor_addr;
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uint8_t start_addr;
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uint8_t registers[SX1509B_REG_COUNT];
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uint8_t high_input[2];
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} sx1509b_instance_t;
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#ifdef __cplusplus
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}
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#endif
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#endif // SX1509B_INTERNAL_H
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