mirror of https://github.com/rusefi/rusefi.git
61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
/*
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* @file gpio_ext.h
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*
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* Abstraction layer definitions for extrenal gpios
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*
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* @date Mar 8, 2019
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* @author Andrey Gusakov, (c) 2019
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*/
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#pragma once
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#if EFI_PROD_CODE
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#include "board.h"
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#endif /* EFI_PROD_CODE */
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#include "rusefi_enums.h"
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/*==========================================================================*/
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/* Checks */
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/*==========================================================================*/
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struct GpioChip {
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virtual int init() = 0;
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// These functions need not be implemented if not supported by the particular chip.
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/* pin argument is pin number within gpio chip, not a global number */
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virtual int setPadMode(size_t /*pin*/, iomode_t /*mode*/) { return -1; }
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virtual int writePad(size_t /*pin*/, int /*value*/) { return -1; }
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virtual int readPad(size_t /*pin*/) { return -1; }
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virtual brain_pin_diag_e getDiag(size_t /*pin*/) { return PIN_OK; }
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virtual int deinit() { return 0; }
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/* chip needs reinitialization due to some critical issue */
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bool need_init;
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int init_cnt;
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int alive_cnt;
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int statusCode;
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};
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int gpiochips_getPinOffset(brain_pin_e pin);
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const char *gpiochips_getChipName(brain_pin_e pin);
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const char *gpiochips_getPinName(brain_pin_e pin);
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/* register/unregister GPIO chip */
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int gpiochip_register(brain_pin_e base, const char *name, GpioChip& chip, size_t size);
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/* Set individual names for pins */
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int gpiochips_setPinNames(brain_pin_e base, const char **names);
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/* gpio extenders subsystem init */
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int gpiochips_init(void);
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int gpiochips_setPadMode(brain_pin_e pin, iomode_t mode);
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int gpiochips_writePad(brain_pin_e pin, int value);
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int gpiochips_readPad(brain_pin_e pin);
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brain_pin_diag_e gpiochips_getDiag(brain_pin_e pin);
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/* return total number of external gpios */
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int gpiochips_get_total_pins(void);
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