mbed official / mbed-src

mbed library sources

Dependents:   Encrypted my_mbed lklk CyaSSL_DTLS_Cellular ... more

Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/hal/TARGET_NXP/TARGET_LPC11XX_11CXX/gpio_api.c@440:8a0b45cd594f, 2014-12-16 (annotated)

Committer:
mbed_official
Date:
Tue Dec 16 08:15:08 2014 +0000
Revision:
440:8a0b45cd594f
Parent:
227:7bd0639b8911 
Synchronized with git revision 67fbbf0b635d0c0d93fbe433306c537c2ad206aa



Full URL: https://github.com/mbedmicro/mbed/commit/67fbbf0b635d0c0d93fbe433306c537c2ad206aa/



Targets: nrf51 - updating app_timer.c from Norid'c SDKv7.1.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 30:91c1d09ada54 1 /* mbed Microcontroller Library
mbed_official 30:91c1d09ada54 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 30:91c1d09ada54 3 *
mbed_official 30:91c1d09ada54 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 30:91c1d09ada54 5 * you may not use this file except in compliance with the License.
mbed_official 30:91c1d09ada54 6 * You may obtain a copy of the License at
mbed_official 30:91c1d09ada54 7 *
mbed_official 30:91c1d09ada54 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 30:91c1d09ada54 9 *
mbed_official 30:91c1d09ada54 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 30:91c1d09ada54 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 30:91c1d09ada54 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 30:91c1d09ada54 13 * See the License for the specific language governing permissions and
mbed_official 30:91c1d09ada54 14 * limitations under the License.
mbed_official 30:91c1d09ada54 15 */
mbed_official 227:7bd0639b8911 16 #include "mbed_assert.h"
mbed_official 30:91c1d09ada54 17 #include "gpio_api.h"
mbed_official 30:91c1d09ada54 18 #include "pinmap.h"
mbed_official 30:91c1d09ada54 19 #include "reserved_pins.h"
mbed_official 30:91c1d09ada54 20
mbed_official 30:91c1d09ada54 21 static const PinName reserved_pins[] = TARGET_RESERVED_PINS;
mbed_official 30:91c1d09ada54 22
mbed_official 30:91c1d09ada54 23 uint32_t gpio_set(PinName pin) {
mbed_official 227:7bd0639b8911 24 MBED_ASSERT(pin != (PinName)NC);
mbed_official 30:91c1d09ada54 25 // PIO default value of following ports are not same as others
mbed_official 30:91c1d09ada54 26 unsigned i;
mbed_official 30:91c1d09ada54 27 int f = 0;
mbed_official 30:91c1d09ada54 28
mbed_official 227:7bd0639b8911 29 for (i = 0; i < sizeof(reserved_pins) / sizeof(PinName); i ++) {
mbed_official 30:91c1d09ada54 30 if (pin == reserved_pins[i]) {
mbed_official 30:91c1d09ada54 31 f = 1;
mbed_official 30:91c1d09ada54 32 break;
mbed_official 30:91c1d09ada54 33 }
mbed_official 227:7bd0639b8911 34 }
mbed_official 30:91c1d09ada54 35 pin_function(pin, f);
mbed_official 30:91c1d09ada54 36 return ((pin & 0x0F00) >> 8);
mbed_official 30:91c1d09ada54 37 }
mbed_official 30:91c1d09ada54 38
mbed_official 113:65a335a675de 39 void gpio_init(gpio_t *obj, PinName pin) {
mbed_official 227:7bd0639b8911 40 obj->pin = pin;
mbed_official 227:7bd0639b8911 41 if (pin == (PinName)NC)
mbed_official 227:7bd0639b8911 42 return;
mbed_official 30:91c1d09ada54 43
mbed_official 30:91c1d09ada54 44 LPC_GPIO_TypeDef *port_reg = ((LPC_GPIO_TypeDef *) (LPC_GPIO0_BASE + (((pin & 0xF000) >> PORT_SHIFT) * 0x10000)));
mbed_official 30:91c1d09ada54 45
mbed_official 30:91c1d09ada54 46 obj->reg_mask_read = &port_reg->MASKED_ACCESS[1 << gpio_set(pin)];
mbed_official 30:91c1d09ada54 47 obj->reg_dir = &port_reg->DIR;
mbed_official 30:91c1d09ada54 48 obj->reg_write = &port_reg->DATA;
mbed_official 30:91c1d09ada54 49 }
mbed_official 30:91c1d09ada54 50
mbed_official 30:91c1d09ada54 51 void gpio_mode(gpio_t *obj, PinMode mode) {
mbed_official 30:91c1d09ada54 52 pin_mode(obj->pin, mode);
mbed_official 30:91c1d09ada54 53 }
mbed_official 30:91c1d09ada54 54
mbed_official 30:91c1d09ada54 55 void gpio_dir(gpio_t *obj, PinDirection direction) {
mbed_official 227:7bd0639b8911 56 MBED_ASSERT(obj->pin != (PinName)NC);
mbed_official 30:91c1d09ada54 57 int pin_number = ((obj->pin & 0x0F00) >> 8);
mbed_official 30:91c1d09ada54 58 switch (direction) {
mbed_official 227:7bd0639b8911 59 case PIN_INPUT :
mbed_official 227:7bd0639b8911 60 *obj->reg_dir &= ~(1 << pin_number);
mbed_official 227:7bd0639b8911 61 break;
mbed_official 227:7bd0639b8911 62 case PIN_OUTPUT:
mbed_official 227:7bd0639b8911 63 *obj->reg_dir |= (1 << pin_number);
mbed_official 227:7bd0639b8911 64 break;
mbed_official 30:91c1d09ada54 65 }
mbed_official 30:91c1d09ada54 66 }