mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

targets/TARGET_NUVOTON/TARGET_M480/gpio_api.c@181:57724642e740, 2018-02-16 (annotated)

Committer:
AnnaBridge
Date:
Fri Feb 16 16:09:33 2018 +0000
Revision:
181:57724642e740
Parent:
172:7d866c31b3c5
Child:
188:bcfe06ba3d64
mbed-dev library. Release version 159.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 172:7d866c31b3c5 1 /* mbed Microcontroller Library
AnnaBridge 172:7d866c31b3c5 2 * Copyright (c) 2015-2016 Nuvoton
AnnaBridge 172:7d866c31b3c5 3 *
AnnaBridge 172:7d866c31b3c5 4 * Licensed under the Apache License, Version 2.0 (the "License");
AnnaBridge 172:7d866c31b3c5 5 * you may not use this file except in compliance with the License.
AnnaBridge 172:7d866c31b3c5 6 * You may obtain a copy of the License at
AnnaBridge 172:7d866c31b3c5 7 *
AnnaBridge 172:7d866c31b3c5 8 * http://www.apache.org/licenses/LICENSE-2.0
AnnaBridge 172:7d866c31b3c5 9 *
AnnaBridge 172:7d866c31b3c5 10 * Unless required by applicable law or agreed to in writing, software
AnnaBridge 172:7d866c31b3c5 11 * distributed under the License is distributed on an "AS IS" BASIS,
AnnaBridge 172:7d866c31b3c5 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
AnnaBridge 172:7d866c31b3c5 13 * See the License for the specific language governing permissions and
AnnaBridge 172:7d866c31b3c5 14 * limitations under the License.
AnnaBridge 172:7d866c31b3c5 15 */
AnnaBridge 172:7d866c31b3c5 16
AnnaBridge 172:7d866c31b3c5 17 #include "gpio_api.h"
AnnaBridge 172:7d866c31b3c5 18 #include "mbed_assert.h"
AnnaBridge 172:7d866c31b3c5 19 #include "pinmap.h"
AnnaBridge 172:7d866c31b3c5 20 #include "mbed_error.h"
AnnaBridge 172:7d866c31b3c5 21 #include "PeripheralPins.h"
AnnaBridge 172:7d866c31b3c5 22
AnnaBridge 172:7d866c31b3c5 23 uint32_t gpio_set(PinName pin)
AnnaBridge 172:7d866c31b3c5 24 {
AnnaBridge 172:7d866c31b3c5 25 if (pin == (PinName) NC) {
AnnaBridge 172:7d866c31b3c5 26 return 0;
AnnaBridge 172:7d866c31b3c5 27 }
AnnaBridge 172:7d866c31b3c5 28
AnnaBridge 172:7d866c31b3c5 29 uint32_t pin_index = NU_PINNAME_TO_PIN(pin);
AnnaBridge 172:7d866c31b3c5 30
AnnaBridge 172:7d866c31b3c5 31 #if 1
AnnaBridge 172:7d866c31b3c5 32 pin_function(pin, 0 << NU_MFP_POS(pin_index));
AnnaBridge 172:7d866c31b3c5 33 #else
AnnaBridge 172:7d866c31b3c5 34 pinmap_pinout(pin, PinMap_GPIO);
AnnaBridge 172:7d866c31b3c5 35 #endif
AnnaBridge 172:7d866c31b3c5 36
AnnaBridge 172:7d866c31b3c5 37 return (uint32_t)(1 << pin_index); // Return the pin mask
AnnaBridge 172:7d866c31b3c5 38 }
AnnaBridge 172:7d866c31b3c5 39
AnnaBridge 181:57724642e740 40 int gpio_is_connected(const gpio_t *obj)
AnnaBridge 181:57724642e740 41 {
AnnaBridge 181:57724642e740 42 return (obj->pin != (PinName) NC);
AnnaBridge 181:57724642e740 43 }
AnnaBridge 181:57724642e740 44
AnnaBridge 172:7d866c31b3c5 45 void gpio_init(gpio_t *obj, PinName pin)
AnnaBridge 172:7d866c31b3c5 46 {
AnnaBridge 172:7d866c31b3c5 47 obj->pin = pin;
AnnaBridge 172:7d866c31b3c5 48
AnnaBridge 172:7d866c31b3c5 49 if (obj->pin == (PinName) NC) {
AnnaBridge 172:7d866c31b3c5 50 return;
AnnaBridge 172:7d866c31b3c5 51 }
AnnaBridge 172:7d866c31b3c5 52
AnnaBridge 172:7d866c31b3c5 53 obj->mask = gpio_set(pin);
AnnaBridge 172:7d866c31b3c5 54 }
AnnaBridge 172:7d866c31b3c5 55
AnnaBridge 172:7d866c31b3c5 56 void gpio_mode(gpio_t *obj, PinMode mode)
AnnaBridge 172:7d866c31b3c5 57 {
AnnaBridge 172:7d866c31b3c5 58 if (obj->pin == (PinName) NC) {
AnnaBridge 172:7d866c31b3c5 59 return;
AnnaBridge 172:7d866c31b3c5 60 }
AnnaBridge 172:7d866c31b3c5 61
AnnaBridge 172:7d866c31b3c5 62 pin_mode(obj->pin, mode);
AnnaBridge 172:7d866c31b3c5 63 }
AnnaBridge 172:7d866c31b3c5 64
AnnaBridge 172:7d866c31b3c5 65 void gpio_dir(gpio_t *obj, PinDirection direction)
AnnaBridge 172:7d866c31b3c5 66 {
AnnaBridge 172:7d866c31b3c5 67 if (obj->pin == (PinName) NC) {
AnnaBridge 172:7d866c31b3c5 68 return;
AnnaBridge 172:7d866c31b3c5 69 }
AnnaBridge 172:7d866c31b3c5 70
AnnaBridge 172:7d866c31b3c5 71 uint32_t pin_index = NU_PINNAME_TO_PIN(obj->pin);
AnnaBridge 172:7d866c31b3c5 72 uint32_t port_index = NU_PINNAME_TO_PORT(obj->pin);
AnnaBridge 172:7d866c31b3c5 73 GPIO_T *gpio_base = NU_PORT_BASE(port_index);
AnnaBridge 172:7d866c31b3c5 74
AnnaBridge 172:7d866c31b3c5 75 uint32_t mode_intern = GPIO_MODE_INPUT;
AnnaBridge 172:7d866c31b3c5 76
AnnaBridge 172:7d866c31b3c5 77 switch (direction) {
AnnaBridge 172:7d866c31b3c5 78 case PIN_INPUT:
AnnaBridge 172:7d866c31b3c5 79 mode_intern = GPIO_MODE_INPUT;
AnnaBridge 172:7d866c31b3c5 80 break;
AnnaBridge 172:7d866c31b3c5 81
AnnaBridge 172:7d866c31b3c5 82 case PIN_OUTPUT:
AnnaBridge 172:7d866c31b3c5 83 mode_intern = GPIO_MODE_OUTPUT;
AnnaBridge 172:7d866c31b3c5 84 break;
AnnaBridge 172:7d866c31b3c5 85
AnnaBridge 172:7d866c31b3c5 86 default:
AnnaBridge 172:7d866c31b3c5 87 return;
AnnaBridge 172:7d866c31b3c5 88 }
AnnaBridge 172:7d866c31b3c5 89
AnnaBridge 172:7d866c31b3c5 90 GPIO_SetMode(gpio_base, 1 << pin_index, mode_intern);
AnnaBridge 172:7d866c31b3c5 91 }