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Dependents:   mbed-TFT-example-NCS36510 mbed-Accelerometer-example-NCS36510 mbed-Accelerometer-example-NCS36510

targets/TARGET_NXP/TARGET_LPC13XX/gpio_api.c@0:098463de4c5d, 2017-01-25 (annotated)

Committer:
group-onsemi
Date:
Wed Jan 25 20:34:15 2017 +0000
Revision:
0:098463de4c5d
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
group-onsemi 0:098463de4c5d 1 /* mbed Microcontroller Library
group-onsemi 0:098463de4c5d 2 * Copyright (c) 2006-2013 ARM Limited
group-onsemi 0:098463de4c5d 3 *
group-onsemi 0:098463de4c5d 4 * Licensed under the Apache License, Version 2.0 (the "License");
group-onsemi 0:098463de4c5d 5 * you may not use this file except in compliance with the License.
group-onsemi 0:098463de4c5d 6 * You may obtain a copy of the License at
group-onsemi 0:098463de4c5d 7 *
group-onsemi 0:098463de4c5d 8 * http://www.apache.org/licenses/LICENSE-2.0
group-onsemi 0:098463de4c5d 9 *
group-onsemi 0:098463de4c5d 10 * Unless required by applicable law or agreed to in writing, software
group-onsemi 0:098463de4c5d 11 * distributed under the License is distributed on an "AS IS" BASIS,
group-onsemi 0:098463de4c5d 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
group-onsemi 0:098463de4c5d 13 * See the License for the specific language governing permissions and
group-onsemi 0:098463de4c5d 14 * limitations under the License.
group-onsemi 0:098463de4c5d 15 */
group-onsemi 0:098463de4c5d 16 #include "mbed_assert.h"
group-onsemi 0:098463de4c5d 17 #include "gpio_api.h"
group-onsemi 0:098463de4c5d 18 #include "pinmap.h"
group-onsemi 0:098463de4c5d 19
group-onsemi 0:098463de4c5d 20 uint32_t gpio_set(PinName pin) {
group-onsemi 0:098463de4c5d 21 MBED_ASSERT(pin != (PinName)NC);
group-onsemi 0:098463de4c5d 22 int f = ((pin == P0_11) || (pin == P0_12) ||
group-onsemi 0:098463de4c5d 23 (pin == P0_13) || (pin == P0_14)) ? (1) : (0);
group-onsemi 0:098463de4c5d 24 pin_function(pin, f);
group-onsemi 0:098463de4c5d 25
group-onsemi 0:098463de4c5d 26 return (1 << ((int)pin & 0x1F));
group-onsemi 0:098463de4c5d 27 }
group-onsemi 0:098463de4c5d 28
group-onsemi 0:098463de4c5d 29 void gpio_init(gpio_t *obj, PinName pin) {
group-onsemi 0:098463de4c5d 30 obj->pin = pin;
group-onsemi 0:098463de4c5d 31 if (pin == (PinName)NC)
group-onsemi 0:098463de4c5d 32 return;
group-onsemi 0:098463de4c5d 33
group-onsemi 0:098463de4c5d 34 obj->mask = gpio_set(pin);
group-onsemi 0:098463de4c5d 35
group-onsemi 0:098463de4c5d 36 unsigned int port = (unsigned int)pin >> PORT_SHIFT;
group-onsemi 0:098463de4c5d 37
group-onsemi 0:098463de4c5d 38 obj->reg_set = &LPC_GPIO->SET[port];
group-onsemi 0:098463de4c5d 39 obj->reg_clr = &LPC_GPIO->CLR[port];
group-onsemi 0:098463de4c5d 40 obj->reg_in = &LPC_GPIO->PIN[port];
group-onsemi 0:098463de4c5d 41 obj->reg_dir = &LPC_GPIO->DIR[port];
group-onsemi 0:098463de4c5d 42 }
group-onsemi 0:098463de4c5d 43
group-onsemi 0:098463de4c5d 44 void gpio_mode(gpio_t *obj, PinMode mode) {
group-onsemi 0:098463de4c5d 45 pin_mode(obj->pin, mode);
group-onsemi 0:098463de4c5d 46 }
group-onsemi 0:098463de4c5d 47
group-onsemi 0:098463de4c5d 48 void gpio_dir(gpio_t *obj, PinDirection direction) {
group-onsemi 0:098463de4c5d 49 MBED_ASSERT(obj->pin != (PinName)NC);
group-onsemi 0:098463de4c5d 50 switch (direction) {
group-onsemi 0:098463de4c5d 51 case PIN_INPUT :
group-onsemi 0:098463de4c5d 52 *obj->reg_dir &= ~obj->mask;
group-onsemi 0:098463de4c5d 53 break;
group-onsemi 0:098463de4c5d 54 case PIN_OUTPUT:
group-onsemi 0:098463de4c5d 55 *obj->reg_dir |= obj->mask;
group-onsemi 0:098463de4c5d 56 break;
group-onsemi 0:098463de4c5d 57 }
group-onsemi 0:098463de4c5d 58 }