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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.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_NORDIC/TARGET_NRF51822/port_api.c@85:e1a8e879a6a9, 2014-02-07 (annotated)

Committer:
mbed_official
Date:
Fri Feb 07 18:00:11 2014 +0000
Revision:
85:e1a8e879a6a9
Child:
104:a6a92e2e5a92
Synchronized with git revision 4b2b368a6a3b1f0fd33d99917981c67436c4aebe



Full URL: https://github.com/mbedmicro/mbed/commit/4b2b368a6a3b1f0fd33d99917981c67436c4aebe/

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 85:e1a8e879a6a9 1 /* mbed Microcontroller Library
mbed_official 85:e1a8e879a6a9 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 85:e1a8e879a6a9 3 *
mbed_official 85:e1a8e879a6a9 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 85:e1a8e879a6a9 5 * you may not use this file except in compliance with the License.
mbed_official 85:e1a8e879a6a9 6 * You may obtain a copy of the License at
mbed_official 85:e1a8e879a6a9 7 *
mbed_official 85:e1a8e879a6a9 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 85:e1a8e879a6a9 9 *
mbed_official 85:e1a8e879a6a9 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 85:e1a8e879a6a9 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 85:e1a8e879a6a9 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 85:e1a8e879a6a9 13 * See the License for the specific language governing permissions and
mbed_official 85:e1a8e879a6a9 14 * limitations under the License.
mbed_official 85:e1a8e879a6a9 15 */
mbed_official 85:e1a8e879a6a9 16 #include "port_api.h"
mbed_official 85:e1a8e879a6a9 17 #include "pinmap.h"
mbed_official 85:e1a8e879a6a9 18 #include "gpio_api.h"
mbed_official 85:e1a8e879a6a9 19
mbed_official 85:e1a8e879a6a9 20 PinName port_pin(PortName port, int pin_n) {
mbed_official 85:e1a8e879a6a9 21 return (PinName)(pin_n);
mbed_official 85:e1a8e879a6a9 22 }
mbed_official 85:e1a8e879a6a9 23
mbed_official 85:e1a8e879a6a9 24 void port_init(port_t *obj, PortName port, int mask, PinDirection dir) {
mbed_official 85:e1a8e879a6a9 25 obj->port = port;
mbed_official 85:e1a8e879a6a9 26 obj->mask = mask;
mbed_official 85:e1a8e879a6a9 27
mbed_official 85:e1a8e879a6a9 28 obj->reg_out = &NRF_GPIO->OUT;
mbed_official 85:e1a8e879a6a9 29 obj->reg_in = &NRF_GPIO->IN;
mbed_official 85:e1a8e879a6a9 30 obj->reg_cnf = NRF_GPIO->PIN_CNF;
mbed_official 85:e1a8e879a6a9 31
mbed_official 85:e1a8e879a6a9 32 port_dir(obj, dir);
mbed_official 85:e1a8e879a6a9 33 }
mbed_official 85:e1a8e879a6a9 34
mbed_official 85:e1a8e879a6a9 35 void port_mode(port_t *obj, PinMode mode) {
mbed_official 85:e1a8e879a6a9 36 uint32_t i;
mbed_official 85:e1a8e879a6a9 37 // The mode is set per pin: reuse pinmap logic
mbed_official 85:e1a8e879a6a9 38 for (i=0; i<31; i++) {
mbed_official 85:e1a8e879a6a9 39 if (obj->mask & (1<<i)) {
mbed_official 85:e1a8e879a6a9 40 pin_mode(port_pin(obj->port, i), mode);
mbed_official 85:e1a8e879a6a9 41 }
mbed_official 85:e1a8e879a6a9 42 }
mbed_official 85:e1a8e879a6a9 43 }
mbed_official 85:e1a8e879a6a9 44
mbed_official 85:e1a8e879a6a9 45 void port_dir(port_t *obj, PinDirection dir) {
mbed_official 85:e1a8e879a6a9 46 int i;
mbed_official 85:e1a8e879a6a9 47 switch (dir) {
mbed_official 85:e1a8e879a6a9 48 case PIN_INPUT :
mbed_official 85:e1a8e879a6a9 49 for (i=0; i<31; i++) {
mbed_official 85:e1a8e879a6a9 50 if (obj->mask & (1<<i)) {
mbed_official 85:e1a8e879a6a9 51 obj->reg_cnf[i] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos)
mbed_official 85:e1a8e879a6a9 52 | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos)
mbed_official 85:e1a8e879a6a9 53 | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos)
mbed_official 85:e1a8e879a6a9 54 | (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos);
mbed_official 85:e1a8e879a6a9 55 }
mbed_official 85:e1a8e879a6a9 56 }
mbed_official 85:e1a8e879a6a9 57 break;
mbed_official 85:e1a8e879a6a9 58 case PIN_OUTPUT:
mbed_official 85:e1a8e879a6a9 59 for (i=0; i<31; i++) {
mbed_official 85:e1a8e879a6a9 60 if (obj->mask & (1<<i)) {
mbed_official 85:e1a8e879a6a9 61 obj->reg_cnf[i] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos)
mbed_official 85:e1a8e879a6a9 62 | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos)
mbed_official 85:e1a8e879a6a9 63 | (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos)
mbed_official 85:e1a8e879a6a9 64 | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos)
mbed_official 85:e1a8e879a6a9 65 | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos);
mbed_official 85:e1a8e879a6a9 66 }
mbed_official 85:e1a8e879a6a9 67 }
mbed_official 85:e1a8e879a6a9 68 break;
mbed_official 85:e1a8e879a6a9 69 }
mbed_official 85:e1a8e879a6a9 70 }
mbed_official 85:e1a8e879a6a9 71
mbed_official 85:e1a8e879a6a9 72 void port_write(port_t *obj, int value) {
mbed_official 85:e1a8e879a6a9 73 *obj->reg_out = value;
mbed_official 85:e1a8e879a6a9 74 }
mbed_official 85:e1a8e879a6a9 75
mbed_official 85:e1a8e879a6a9 76 int port_read(port_t *obj) {
mbed_official 85:e1a8e879a6a9 77 return (*obj->reg_in);
mbed_official 85:e1a8e879a6a9 78 }