MacroRat / MouseCode

Mouse code for the MacroRat

Dependencies:   ITG3200 QEI

mbed-dev/targets/TARGET_NXP/TARGET_LPC13XX/gpio_api.c@18:6a4db94011d3, 2017-05-14 (annotated)

Committer:
sahilmgandhi
Date:
Sun May 14 23:18:57 2017 +0000
Revision:
18:6a4db94011d3
Publishing again

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sahilmgandhi 18:6a4db94011d3 1 /* mbed Microcontroller Library
sahilmgandhi 18:6a4db94011d3 2 * Copyright (c) 2006-2013 ARM Limited
sahilmgandhi 18:6a4db94011d3 3 *
sahilmgandhi 18:6a4db94011d3 4 * Licensed under the Apache License, Version 2.0 (the "License");
sahilmgandhi 18:6a4db94011d3 5 * you may not use this file except in compliance with the License.
sahilmgandhi 18:6a4db94011d3 6 * You may obtain a copy of the License at
sahilmgandhi 18:6a4db94011d3 7 *
sahilmgandhi 18:6a4db94011d3 8 * http://www.apache.org/licenses/LICENSE-2.0
sahilmgandhi 18:6a4db94011d3 9 *
sahilmgandhi 18:6a4db94011d3 10 * Unless required by applicable law or agreed to in writing, software
sahilmgandhi 18:6a4db94011d3 11 * distributed under the License is distributed on an "AS IS" BASIS,
sahilmgandhi 18:6a4db94011d3 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
sahilmgandhi 18:6a4db94011d3 13 * See the License for the specific language governing permissions and
sahilmgandhi 18:6a4db94011d3 14 * limitations under the License.
sahilmgandhi 18:6a4db94011d3 15 */
sahilmgandhi 18:6a4db94011d3 16 #include "mbed_assert.h"
sahilmgandhi 18:6a4db94011d3 17 #include "gpio_api.h"
sahilmgandhi 18:6a4db94011d3 18 #include "pinmap.h"
sahilmgandhi 18:6a4db94011d3 19
sahilmgandhi 18:6a4db94011d3 20 uint32_t gpio_set(PinName pin) {
sahilmgandhi 18:6a4db94011d3 21 MBED_ASSERT(pin != (PinName)NC);
sahilmgandhi 18:6a4db94011d3 22 int f = ((pin == P0_11) || (pin == P0_12) ||
sahilmgandhi 18:6a4db94011d3 23 (pin == P0_13) || (pin == P0_14)) ? (1) : (0);
sahilmgandhi 18:6a4db94011d3 24 pin_function(pin, f);
sahilmgandhi 18:6a4db94011d3 25
sahilmgandhi 18:6a4db94011d3 26 return (1 << ((int)pin & 0x1F));
sahilmgandhi 18:6a4db94011d3 27 }
sahilmgandhi 18:6a4db94011d3 28
sahilmgandhi 18:6a4db94011d3 29 void gpio_init(gpio_t *obj, PinName pin) {
sahilmgandhi 18:6a4db94011d3 30 obj->pin = pin;
sahilmgandhi 18:6a4db94011d3 31 if (pin == (PinName)NC)
sahilmgandhi 18:6a4db94011d3 32 return;
sahilmgandhi 18:6a4db94011d3 33
sahilmgandhi 18:6a4db94011d3 34 obj->mask = gpio_set(pin);
sahilmgandhi 18:6a4db94011d3 35
sahilmgandhi 18:6a4db94011d3 36 unsigned int port = (unsigned int)pin >> PORT_SHIFT;
sahilmgandhi 18:6a4db94011d3 37
sahilmgandhi 18:6a4db94011d3 38 obj->reg_set = &LPC_GPIO->SET[port];
sahilmgandhi 18:6a4db94011d3 39 obj->reg_clr = &LPC_GPIO->CLR[port];
sahilmgandhi 18:6a4db94011d3 40 obj->reg_in = &LPC_GPIO->PIN[port];
sahilmgandhi 18:6a4db94011d3 41 obj->reg_dir = &LPC_GPIO->DIR[port];
sahilmgandhi 18:6a4db94011d3 42 }
sahilmgandhi 18:6a4db94011d3 43
sahilmgandhi 18:6a4db94011d3 44 void gpio_mode(gpio_t *obj, PinMode mode) {
sahilmgandhi 18:6a4db94011d3 45 pin_mode(obj->pin, mode);
sahilmgandhi 18:6a4db94011d3 46 }
sahilmgandhi 18:6a4db94011d3 47
sahilmgandhi 18:6a4db94011d3 48 void gpio_dir(gpio_t *obj, PinDirection direction) {
sahilmgandhi 18:6a4db94011d3 49 MBED_ASSERT(obj->pin != (PinName)NC);
sahilmgandhi 18:6a4db94011d3 50 switch (direction) {
sahilmgandhi 18:6a4db94011d3 51 case PIN_INPUT :
sahilmgandhi 18:6a4db94011d3 52 *obj->reg_dir &= ~obj->mask;
sahilmgandhi 18:6a4db94011d3 53 break;
sahilmgandhi 18:6a4db94011d3 54 case PIN_OUTPUT:
sahilmgandhi 18:6a4db94011d3 55 *obj->reg_dir |= obj->mask;
sahilmgandhi 18:6a4db94011d3 56 break;
sahilmgandhi 18:6a4db94011d3 57 }
sahilmgandhi 18:6a4db94011d3 58 }