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targets/TARGET_NXP/TARGET_LPC2460/gpio_object.h@178:c26431f84b0d, 2017-11-09 (annotated)
- Committer:
- amithy
- Date:
- Thu Nov 09 22:14:37 2017 +0000
- Revision:
- 178:c26431f84b0d
- Parent:
- 149:156823d33999
test export
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
<> | 144:ef7eb2e8f9f7 | 1 | /* mbed Microcontroller Library |
<> | 144:ef7eb2e8f9f7 | 2 | * Copyright (c) 2006-2015 ARM Limited |
<> | 144:ef7eb2e8f9f7 | 3 | * |
<> | 144:ef7eb2e8f9f7 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
<> | 144:ef7eb2e8f9f7 | 5 | * you may not use this file except in compliance with the License. |
<> | 144:ef7eb2e8f9f7 | 6 | * You may obtain a copy of the License at |
<> | 144:ef7eb2e8f9f7 | 7 | * |
<> | 144:ef7eb2e8f9f7 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
<> | 144:ef7eb2e8f9f7 | 9 | * |
<> | 144:ef7eb2e8f9f7 | 10 | * Unless required by applicable law or agreed to in writing, software |
<> | 144:ef7eb2e8f9f7 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
<> | 144:ef7eb2e8f9f7 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
<> | 144:ef7eb2e8f9f7 | 13 | * See the License for the specific language governing permissions and |
<> | 144:ef7eb2e8f9f7 | 14 | * limitations under the License. |
<> | 144:ef7eb2e8f9f7 | 15 | */ |
<> | 144:ef7eb2e8f9f7 | 16 | #ifndef MBED_GPIO_OBJECT_H |
<> | 144:ef7eb2e8f9f7 | 17 | #define MBED_GPIO_OBJECT_H |
<> | 144:ef7eb2e8f9f7 | 18 | |
<> | 144:ef7eb2e8f9f7 | 19 | #include "mbed_assert.h" |
<> | 144:ef7eb2e8f9f7 | 20 | |
<> | 144:ef7eb2e8f9f7 | 21 | #ifdef __cplusplus |
<> | 144:ef7eb2e8f9f7 | 22 | extern "C" { |
<> | 144:ef7eb2e8f9f7 | 23 | #endif |
<> | 144:ef7eb2e8f9f7 | 24 | |
<> | 144:ef7eb2e8f9f7 | 25 | typedef struct { |
<> | 144:ef7eb2e8f9f7 | 26 | PinName pin; |
<> | 144:ef7eb2e8f9f7 | 27 | uint32_t mask; |
<> | 144:ef7eb2e8f9f7 | 28 | |
<> | 144:ef7eb2e8f9f7 | 29 | __IO uint32_t *reg_dir; |
<> | 144:ef7eb2e8f9f7 | 30 | __IO uint32_t *reg_mask; |
<> | 144:ef7eb2e8f9f7 | 31 | __IO uint32_t *reg_set; |
<> | 144:ef7eb2e8f9f7 | 32 | __IO uint32_t *reg_clr; |
<> | 144:ef7eb2e8f9f7 | 33 | __I uint32_t *reg_in; |
<> | 144:ef7eb2e8f9f7 | 34 | } gpio_t; |
<> | 144:ef7eb2e8f9f7 | 35 | |
<> | 144:ef7eb2e8f9f7 | 36 | static inline void gpio_write(gpio_t *obj, int value) { |
<> | 144:ef7eb2e8f9f7 | 37 | MBED_ASSERT(obj->pin != (PinName)NC); |
<> | 144:ef7eb2e8f9f7 | 38 | *obj->reg_mask &= ~obj->mask; |
<> | 144:ef7eb2e8f9f7 | 39 | if (value) |
<> | 144:ef7eb2e8f9f7 | 40 | *obj->reg_set = obj->mask; |
<> | 144:ef7eb2e8f9f7 | 41 | else |
<> | 144:ef7eb2e8f9f7 | 42 | *obj->reg_clr = obj->mask; |
<> | 144:ef7eb2e8f9f7 | 43 | } |
<> | 144:ef7eb2e8f9f7 | 44 | |
<> | 144:ef7eb2e8f9f7 | 45 | static inline int gpio_read(gpio_t *obj) { |
<> | 144:ef7eb2e8f9f7 | 46 | MBED_ASSERT(obj->pin != (PinName)NC); |
<> | 144:ef7eb2e8f9f7 | 47 | *obj->reg_mask &= ~obj->mask; |
<> | 144:ef7eb2e8f9f7 | 48 | return ((*obj->reg_in & obj->mask) ? 1 : 0); |
<> | 144:ef7eb2e8f9f7 | 49 | } |
<> | 144:ef7eb2e8f9f7 | 50 | |
<> | 144:ef7eb2e8f9f7 | 51 | static inline int gpio_is_connected(const gpio_t *obj) { |
<> | 144:ef7eb2e8f9f7 | 52 | return obj->pin != (PinName)NC; |
<> | 144:ef7eb2e8f9f7 | 53 | } |
<> | 144:ef7eb2e8f9f7 | 54 | |
<> | 144:ef7eb2e8f9f7 | 55 | #ifdef __cplusplus |
<> | 144:ef7eb2e8f9f7 | 56 | } |
<> | 144:ef7eb2e8f9f7 | 57 | #endif |
<> | 144:ef7eb2e8f9f7 | 58 | |
<> | 144:ef7eb2e8f9f7 | 59 | #endif |