takashi kadono / Mbed OS Nucleo446_SSD1331

Color Oled(SSD1331) connect to STMicroelectronics Nucleo-F466

Dependencies:   ssd1331

mbed-os/targets/TARGET_NUVOTON/TARGET_NANO100/gpio_api.c@0:8fdf9a60065b, 2018-10-10 (annotated)

Committer:
kadonotakashi
Date:
Wed Oct 10 00:33:53 2018 +0000
Revision:
0:8fdf9a60065b
how to make mbed librry

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kadonotakashi 0:8fdf9a60065b 1 /* mbed Microcontroller Library
kadonotakashi 0:8fdf9a60065b 2 * Copyright (c) 2015-2017 Nuvoton
kadonotakashi 0:8fdf9a60065b 3 *
kadonotakashi 0:8fdf9a60065b 4 * Licensed under the Apache License, Version 2.0 (the "License");
kadonotakashi 0:8fdf9a60065b 5 * you may not use this file except in compliance with the License.
kadonotakashi 0:8fdf9a60065b 6 * You may obtain a copy of the License at
kadonotakashi 0:8fdf9a60065b 7 *
kadonotakashi 0:8fdf9a60065b 8 * http://www.apache.org/licenses/LICENSE-2.0
kadonotakashi 0:8fdf9a60065b 9 *
kadonotakashi 0:8fdf9a60065b 10 * Unless required by applicable law or agreed to in writing, software
kadonotakashi 0:8fdf9a60065b 11 * distributed under the License is distributed on an "AS IS" BASIS,
kadonotakashi 0:8fdf9a60065b 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
kadonotakashi 0:8fdf9a60065b 13 * See the License for the specific language governing permissions and
kadonotakashi 0:8fdf9a60065b 14 * limitations under the License.
kadonotakashi 0:8fdf9a60065b 15 */
kadonotakashi 0:8fdf9a60065b 16
kadonotakashi 0:8fdf9a60065b 17 #include "gpio_api.h"
kadonotakashi 0:8fdf9a60065b 18 #include "mbed_assert.h"
kadonotakashi 0:8fdf9a60065b 19 #include "pinmap.h"
kadonotakashi 0:8fdf9a60065b 20 #include "mbed_error.h"
kadonotakashi 0:8fdf9a60065b 21 #include "PeripheralPins.h"
kadonotakashi 0:8fdf9a60065b 22
kadonotakashi 0:8fdf9a60065b 23 uint32_t gpio_set(PinName pin)
kadonotakashi 0:8fdf9a60065b 24 {
kadonotakashi 0:8fdf9a60065b 25 if (pin == (PinName) NC) {
kadonotakashi 0:8fdf9a60065b 26 return 0;
kadonotakashi 0:8fdf9a60065b 27 }
kadonotakashi 0:8fdf9a60065b 28
kadonotakashi 0:8fdf9a60065b 29 uint32_t pin_index = NU_PINNAME_TO_PIN(pin);
kadonotakashi 0:8fdf9a60065b 30
kadonotakashi 0:8fdf9a60065b 31 // GPIO PinMap
kadonotakashi 0:8fdf9a60065b 32 pin_function(pin, 0 << NU_MFP_POS(pin_index));
kadonotakashi 0:8fdf9a60065b 33
kadonotakashi 0:8fdf9a60065b 34 return (uint32_t)(1 << pin_index); // Return the pin mask
kadonotakashi 0:8fdf9a60065b 35 }
kadonotakashi 0:8fdf9a60065b 36
kadonotakashi 0:8fdf9a60065b 37 int gpio_is_connected(const gpio_t *obj)
kadonotakashi 0:8fdf9a60065b 38 {
kadonotakashi 0:8fdf9a60065b 39 return (obj->pin != (PinName) NC);
kadonotakashi 0:8fdf9a60065b 40 }
kadonotakashi 0:8fdf9a60065b 41
kadonotakashi 0:8fdf9a60065b 42 void gpio_init(gpio_t *obj, PinName pin)
kadonotakashi 0:8fdf9a60065b 43 {
kadonotakashi 0:8fdf9a60065b 44 obj->pin = pin;
kadonotakashi 0:8fdf9a60065b 45
kadonotakashi 0:8fdf9a60065b 46 if (obj->pin == (PinName) NC) {
kadonotakashi 0:8fdf9a60065b 47 return;
kadonotakashi 0:8fdf9a60065b 48 }
kadonotakashi 0:8fdf9a60065b 49
kadonotakashi 0:8fdf9a60065b 50 obj->mask = gpio_set(pin);
kadonotakashi 0:8fdf9a60065b 51 /* Default mode/direction */
kadonotakashi 0:8fdf9a60065b 52 obj->mode = PullUp;
kadonotakashi 0:8fdf9a60065b 53 obj->direction = PIN_INPUT;
kadonotakashi 0:8fdf9a60065b 54 }
kadonotakashi 0:8fdf9a60065b 55
kadonotakashi 0:8fdf9a60065b 56 void gpio_mode(gpio_t *obj, PinMode mode)
kadonotakashi 0:8fdf9a60065b 57 {
kadonotakashi 0:8fdf9a60065b 58 if (obj->pin == (PinName) NC) {
kadonotakashi 0:8fdf9a60065b 59 return;
kadonotakashi 0:8fdf9a60065b 60 }
kadonotakashi 0:8fdf9a60065b 61
kadonotakashi 0:8fdf9a60065b 62 switch (mode) {
kadonotakashi 0:8fdf9a60065b 63 case PullNone:
kadonotakashi 0:8fdf9a60065b 64 case PullDown:
kadonotakashi 0:8fdf9a60065b 65 case PullUp:
kadonotakashi 0:8fdf9a60065b 66 /* H/W doesn't support separate configuration for input pull mode/direction.
kadonotakashi 0:8fdf9a60065b 67 * We translate to input-only/push-pull output I/O mode dependent on direction. */
kadonotakashi 0:8fdf9a60065b 68 obj->mode = (obj->direction == PIN_INPUT) ? InputOnly : PushPullOutput;
kadonotakashi 0:8fdf9a60065b 69 break;
kadonotakashi 0:8fdf9a60065b 70
kadonotakashi 0:8fdf9a60065b 71
kadonotakashi 0:8fdf9a60065b 72 case InputOnly:
kadonotakashi 0:8fdf9a60065b 73 case PushPullOutput:
kadonotakashi 0:8fdf9a60065b 74 /* We may meet contradictory I/O mode/direction configuration. Favor I/O mode
kadonotakashi 0:8fdf9a60065b 75 * in the gpio_mode call here. */
kadonotakashi 0:8fdf9a60065b 76 if (mode == InputOnly) {
kadonotakashi 0:8fdf9a60065b 77 obj->direction = PIN_INPUT;
kadonotakashi 0:8fdf9a60065b 78 obj->mode = InputOnly;
kadonotakashi 0:8fdf9a60065b 79 } else {
kadonotakashi 0:8fdf9a60065b 80 obj->direction = PIN_OUTPUT;
kadonotakashi 0:8fdf9a60065b 81 obj->mode = PushPullOutput;
kadonotakashi 0:8fdf9a60065b 82 }
kadonotakashi 0:8fdf9a60065b 83 break;
kadonotakashi 0:8fdf9a60065b 84
kadonotakashi 0:8fdf9a60065b 85 default:
kadonotakashi 0:8fdf9a60065b 86 /* Allow for configuring other I/O modes directly */
kadonotakashi 0:8fdf9a60065b 87 obj->mode = mode;
kadonotakashi 0:8fdf9a60065b 88 break;
kadonotakashi 0:8fdf9a60065b 89 }
kadonotakashi 0:8fdf9a60065b 90
kadonotakashi 0:8fdf9a60065b 91 pin_mode(obj->pin, obj->mode);
kadonotakashi 0:8fdf9a60065b 92 }
kadonotakashi 0:8fdf9a60065b 93
kadonotakashi 0:8fdf9a60065b 94 void gpio_dir(gpio_t *obj, PinDirection direction)
kadonotakashi 0:8fdf9a60065b 95 {
kadonotakashi 0:8fdf9a60065b 96 if (obj->pin == (PinName) NC) {
kadonotakashi 0:8fdf9a60065b 97 return;
kadonotakashi 0:8fdf9a60065b 98 }
kadonotakashi 0:8fdf9a60065b 99
kadonotakashi 0:8fdf9a60065b 100 obj->direction = direction;
kadonotakashi 0:8fdf9a60065b 101
kadonotakashi 0:8fdf9a60065b 102 switch (obj->mode) {
kadonotakashi 0:8fdf9a60065b 103 case PullNone:
kadonotakashi 0:8fdf9a60065b 104 case PullDown:
kadonotakashi 0:8fdf9a60065b 105 case PullUp:
kadonotakashi 0:8fdf9a60065b 106 /* H/W doesn't support separate configuration for input pull mode/direction.
kadonotakashi 0:8fdf9a60065b 107 * We translate to input-only/push-pull output I/O mode dependent on direction. */
kadonotakashi 0:8fdf9a60065b 108 obj->mode = (obj->direction == PIN_INPUT) ? InputOnly : PushPullOutput;
kadonotakashi 0:8fdf9a60065b 109 break;
kadonotakashi 0:8fdf9a60065b 110
kadonotakashi 0:8fdf9a60065b 111 case InputOnly:
kadonotakashi 0:8fdf9a60065b 112 case PushPullOutput:
kadonotakashi 0:8fdf9a60065b 113 /* We may meet contradictory I/O mode/direction configuration. Favor direction
kadonotakashi 0:8fdf9a60065b 114 * in the gpio_dir call here. */
kadonotakashi 0:8fdf9a60065b 115 obj->mode = (obj->direction == PIN_INPUT) ? InputOnly : PushPullOutput;
kadonotakashi 0:8fdf9a60065b 116 break;
kadonotakashi 0:8fdf9a60065b 117
kadonotakashi 0:8fdf9a60065b 118 default:
kadonotakashi 0:8fdf9a60065b 119 break;
kadonotakashi 0:8fdf9a60065b 120 }
kadonotakashi 0:8fdf9a60065b 121
kadonotakashi 0:8fdf9a60065b 122 pin_mode(obj->pin, obj->mode);
kadonotakashi 0:8fdf9a60065b 123 }