48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
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/** esp/iomux_private.h
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*
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* Private implementation parts of iomux registers. In headers to
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* allow compile-time optimisations.
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*
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* Part of esp-open-rtos
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* Copyright (C) 2015 Superhouse Automation Pty Ltd
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* BSD Licensed as described in the file LICENSE
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*/
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/* Mapping from register index to GPIO and from GPIO index to register
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number. DO NOT USE THESE IN YOUR CODE, call gpio_to_iomux(xxx) or
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iomux_to_gpio(xxx) instead.
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*/
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#ifndef _IOMUX_PRIVATE
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#define _IOMUX_PRIVATE
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#include "common_macros.h"
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#define _IOMUX_TO_GPIO { 12, 13, 14, 15, 3, 1, 6, 7, 8, 9, 10, 11, 0, 2, 4, 5 }
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#define _GPIO_TO_IOMUX { 12, 5, 13, 4, 14, 15, 6, 7, 8, 9, 10, 11, 0, 1, 2, 3 }
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extern const IROM uint32_t GPIO_TO_IOMUX_MAP[];
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extern const IROM uint32_t IOMUX_TO_GPIO_MAP[];
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INLINED uint8_t gpio_to_iomux(const uint8_t gpio_number)
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{
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if(__builtin_constant_p(gpio_number)) {
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static const uint8_t _regs[] = _GPIO_TO_IOMUX;
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return _regs[gpio_number];
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} else {
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return GPIO_TO_IOMUX_MAP[gpio_number];
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}
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}
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INLINED uint8_t iomux_to_gpio(const uint8_t iomux_number)
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{
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if(__builtin_constant_p(iomux_number)) {
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static const uint8_t _regs[] = _IOMUX_TO_GPIO;
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return _regs[iomux_number];
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} else {
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return IOMUX_TO_GPIO_MAP[iomux_number];
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}
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}
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#endif
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