mirror of https://github.com/ARMmbed/mbed-os.git
72 lines
2.7 KiB
C
72 lines
2.7 KiB
C
/* mbed Microcontroller Library
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*******************************************************************************
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* Copyright (c) 2015 WIZnet Co.,Ltd. All rights reserved.
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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
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* modification, 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,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of ARM Limited nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*******************************************************************************
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*/
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#include "mbed_assert.h"
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#include "gpio_api.h"
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#include "pinmap.h"
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extern uint32_t Get_GPIO_BaseAddress(uint32_t port_idx);
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uint32_t gpio_set(PinName pin)
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{
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MBED_ASSERT(pin != (PinName)NC);
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pin_function(pin, WIZ_PIN_DATA(WIZ_MODE_INPUT, WIZ_GPIO_NOPULL, Px_AFSR_AF1));
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return (uint32_t)(1 << ((uint32_t)pin & 0xF)); // Return the pin mask
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}
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void gpio_init(gpio_t *obj, PinName pin)
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{
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if (pin == (PinName)NC) {
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return;
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}
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obj->port_num = WIZ_PORT(pin);
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obj->pin_index = WIZ_PIN_INDEX(pin);
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obj->pin = pin;
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GPIO_TypeDef *gpio = (GPIO_TypeDef *)Get_GPIO_BaseAddress(obj->port_num);
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obj->reg_data_in = &gpio->DATA;
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}
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void gpio_mode(gpio_t *obj, PinMode mode)
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{
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pin_mode(obj->pin, mode);
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obj->mode = mode;
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}
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void gpio_dir(gpio_t *obj, PinDirection direction)
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{
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MBED_ASSERT(obj->pin != (PinName)NC);
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obj->direction = direction;
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pin_function(obj->pin, WIZ_PIN_DATA(obj->direction, obj->mode, 1));
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}
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