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targets/TARGET_NUVOTON/TARGET_M480/gpio_api.c@173:7d866c31b3c5, 2017-08-31 (annotated)

Committer:
AnnaBridge
Date:
Thu Aug 31 17:27:04 2017 +0100
Revision:
173:7d866c31b3c5
Child:
182:57724642e740
This updates the lib to the mbed lib v 150

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 173:7d866c31b3c5 1 /* mbed Microcontroller Library
AnnaBridge 173:7d866c31b3c5 2 * Copyright (c) 2015-2016 Nuvoton
AnnaBridge 173:7d866c31b3c5 3 *
AnnaBridge 173:7d866c31b3c5 4 * Licensed under the Apache License, Version 2.0 (the "License");
AnnaBridge 173:7d866c31b3c5 5 * you may not use this file except in compliance with the License.
AnnaBridge 173:7d866c31b3c5 6 * You may obtain a copy of the License at
AnnaBridge 173:7d866c31b3c5 7 *
AnnaBridge 173:7d866c31b3c5 8 * http://www.apache.org/licenses/LICENSE-2.0
AnnaBridge 173:7d866c31b3c5 9 *
AnnaBridge 173:7d866c31b3c5 10 * Unless required by applicable law or agreed to in writing, software
AnnaBridge 173:7d866c31b3c5 11 * distributed under the License is distributed on an "AS IS" BASIS,
AnnaBridge 173:7d866c31b3c5 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
AnnaBridge 173:7d866c31b3c5 13 * See the License for the specific language governing permissions and
AnnaBridge 173:7d866c31b3c5 14 * limitations under the License.
AnnaBridge 173:7d866c31b3c5 15 */
AnnaBridge 173:7d866c31b3c5 16
AnnaBridge 173:7d866c31b3c5 17 #include "gpio_api.h"
AnnaBridge 173:7d866c31b3c5 18 #include "mbed_assert.h"
AnnaBridge 173:7d866c31b3c5 19 #include "pinmap.h"
AnnaBridge 173:7d866c31b3c5 20 #include "mbed_error.h"
AnnaBridge 173:7d866c31b3c5 21 #include "PeripheralPins.h"
AnnaBridge 173:7d866c31b3c5 22
AnnaBridge 173:7d866c31b3c5 23 uint32_t gpio_set(PinName pin)
AnnaBridge 173:7d866c31b3c5 24 {
AnnaBridge 173:7d866c31b3c5 25 if (pin == (PinName) NC) {
AnnaBridge 173:7d866c31b3c5 26 return 0;
AnnaBridge 173:7d866c31b3c5 27 }
AnnaBridge 173:7d866c31b3c5 28
AnnaBridge 173:7d866c31b3c5 29 uint32_t pin_index = NU_PINNAME_TO_PIN(pin);
AnnaBridge 173:7d866c31b3c5 30
AnnaBridge 173:7d866c31b3c5 31 #if 1
AnnaBridge 173:7d866c31b3c5 32 pin_function(pin, 0 << NU_MFP_POS(pin_index));
AnnaBridge 173:7d866c31b3c5 33 #else
AnnaBridge 173:7d866c31b3c5 34 pinmap_pinout(pin, PinMap_GPIO);
AnnaBridge 173:7d866c31b3c5 35 #endif
AnnaBridge 173:7d866c31b3c5 36
AnnaBridge 173:7d866c31b3c5 37 return (uint32_t)(1 << pin_index); // Return the pin mask
AnnaBridge 173:7d866c31b3c5 38 }
AnnaBridge 173:7d866c31b3c5 39
AnnaBridge 173:7d866c31b3c5 40 void gpio_init(gpio_t *obj, PinName pin)
AnnaBridge 173:7d866c31b3c5 41 {
AnnaBridge 173:7d866c31b3c5 42 obj->pin = pin;
AnnaBridge 173:7d866c31b3c5 43
AnnaBridge 173:7d866c31b3c5 44 if (obj->pin == (PinName) NC) {
AnnaBridge 173:7d866c31b3c5 45 return;
AnnaBridge 173:7d866c31b3c5 46 }
AnnaBridge 173:7d866c31b3c5 47
AnnaBridge 173:7d866c31b3c5 48 obj->mask = gpio_set(pin);
AnnaBridge 173:7d866c31b3c5 49 }
AnnaBridge 173:7d866c31b3c5 50
AnnaBridge 173:7d866c31b3c5 51 void gpio_mode(gpio_t *obj, PinMode mode)
AnnaBridge 173:7d866c31b3c5 52 {
AnnaBridge 173:7d866c31b3c5 53 if (obj->pin == (PinName) NC) {
AnnaBridge 173:7d866c31b3c5 54 return;
AnnaBridge 173:7d866c31b3c5 55 }
AnnaBridge 173:7d866c31b3c5 56
AnnaBridge 173:7d866c31b3c5 57 pin_mode(obj->pin, mode);
AnnaBridge 173:7d866c31b3c5 58 }
AnnaBridge 173:7d866c31b3c5 59
AnnaBridge 173:7d866c31b3c5 60 void gpio_dir(gpio_t *obj, PinDirection direction)
AnnaBridge 173:7d866c31b3c5 61 {
AnnaBridge 173:7d866c31b3c5 62 if (obj->pin == (PinName) NC) {
AnnaBridge 173:7d866c31b3c5 63 return;
AnnaBridge 173:7d866c31b3c5 64 }
AnnaBridge 173:7d866c31b3c5 65
AnnaBridge 173:7d866c31b3c5 66 uint32_t pin_index = NU_PINNAME_TO_PIN(obj->pin);
AnnaBridge 173:7d866c31b3c5 67 uint32_t port_index = NU_PINNAME_TO_PORT(obj->pin);
AnnaBridge 173:7d866c31b3c5 68 GPIO_T *gpio_base = NU_PORT_BASE(port_index);
AnnaBridge 173:7d866c31b3c5 69
AnnaBridge 173:7d866c31b3c5 70 uint32_t mode_intern = GPIO_MODE_INPUT;
AnnaBridge 173:7d866c31b3c5 71
AnnaBridge 173:7d866c31b3c5 72 switch (direction) {
AnnaBridge 173:7d866c31b3c5 73 case PIN_INPUT:
AnnaBridge 173:7d866c31b3c5 74 mode_intern = GPIO_MODE_INPUT;
AnnaBridge 173:7d866c31b3c5 75 break;
AnnaBridge 173:7d866c31b3c5 76
AnnaBridge 173:7d866c31b3c5 77 case PIN_OUTPUT:
AnnaBridge 173:7d866c31b3c5 78 mode_intern = GPIO_MODE_OUTPUT;
AnnaBridge 173:7d866c31b3c5 79 break;
AnnaBridge 173:7d866c31b3c5 80
AnnaBridge 173:7d866c31b3c5 81 default:
AnnaBridge 173:7d866c31b3c5 82 return;
AnnaBridge 173:7d866c31b3c5 83 }
AnnaBridge 173:7d866c31b3c5 84
AnnaBridge 173:7d866c31b3c5 85 GPIO_SetMode(gpio_base, 1 << pin_index, mode_intern);
AnnaBridge 173:7d866c31b3c5 86 }