Last change
on this file since 374 was 374, checked in by coas-nagasima, 5 years ago |
mbed関連を更新
シリアルドライバをmbedのHALを使うよう変更
ファイルディスクリプタの処理を更新
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1 | /* mbed Microcontroller Library
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2 | * Copyright (c) 2006-2013 ARM Limited
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3 | *
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4 | * Licensed under the Apache License, Version 2.0 (the "License");
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5 | * you may not use this file except in compliance with the License.
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6 | * You may obtain a copy of the License at
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7 | *
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8 | * http://www.apache.org/licenses/LICENSE-2.0
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9 | *
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10 | * Unless required by applicable law or agreed to in writing, software
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11 | * distributed under the License is distributed on an "AS IS" BASIS,
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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13 | * See the License for the specific language governing permissions and
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14 | * limitations under the License.
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15 | */
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16 | #ifndef MBED_GPIO_OBJECT_H
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17 | #define MBED_GPIO_OBJECT_H
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18 |
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19 | #include "platform/mbed_assert.h"
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20 |
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21 | #ifdef __cplusplus
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22 | extern "C" {
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23 | #endif
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24 |
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25 | typedef struct {
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26 | PinName pin;
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27 | uint32_t mask;
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28 |
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29 | __IO uint32_t *reg_dir;
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30 | __IO uint32_t *reg_set;
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31 | __I uint32_t *reg_in;
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32 | __IO uint32_t *reg_buf;
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33 | } gpio_t;
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34 |
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35 | static inline void gpio_write(gpio_t *obj, int value) {
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36 | *obj->reg_set = (obj->mask << 16) | ((value != 0) ? obj->mask : 0);
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37 | }
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38 |
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39 | static inline int gpio_read(gpio_t *obj) {
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40 | return ((*obj->reg_in & obj->mask) ? 1 : 0);
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41 | }
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42 |
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43 | static inline int gpio_is_connected(const gpio_t *obj) {
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44 | return obj->pin != (PinName)NC;
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45 | }
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46 |
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47 | #ifdef __cplusplus
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48 | }
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49 | #endif
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50 |
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51 | #endif
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