MacroRat / MouseCode

Mouse code for the MacroRat

Dependencies:   ITG3200 QEI

mbed-dev/targets/TARGET_Atmel/TARGET_SAM_CortexM4/gpio_api.c@46:b156ef445742, 2017-06-03 (annotated)

Committer:
sahilmgandhi
Date:
Sat Jun 03 00:22:44 2017 +0000
Revision:
46:b156ef445742
Parent:
18:6a4db94011d3 
Final code for internal battlebot competition.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sahilmgandhi 18:6a4db94011d3 1 /* mbed Microcontroller Library
sahilmgandhi 18:6a4db94011d3 2 * Copyright (c) 2006-2015 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 "PinNames.h"
sahilmgandhi 18:6a4db94011d3 18 #include "gpio_object.h"
sahilmgandhi 18:6a4db94011d3 19 #include "gpio_api.h"
sahilmgandhi 18:6a4db94011d3 20 #include "compiler.h"
sahilmgandhi 18:6a4db94011d3 21 #include "ioport.h"
sahilmgandhi 18:6a4db94011d3 22
sahilmgandhi 18:6a4db94011d3 23 extern uint8_t g_sys_init;
sahilmgandhi 18:6a4db94011d3 24
sahilmgandhi 18:6a4db94011d3 25 uint32_t gpio_set(PinName pin)
sahilmgandhi 18:6a4db94011d3 26 {
sahilmgandhi 18:6a4db94011d3 27 MBED_ASSERT(pin != (PinName)NC);
sahilmgandhi 18:6a4db94011d3 28 return (1UL << (pin % 32));
sahilmgandhi 18:6a4db94011d3 29 }
sahilmgandhi 18:6a4db94011d3 30
sahilmgandhi 18:6a4db94011d3 31 void gpio_init(gpio_t *obj, PinName pin)
sahilmgandhi 18:6a4db94011d3 32 {
sahilmgandhi 18:6a4db94011d3 33 MBED_ASSERT(pin != (PinName)NC);
sahilmgandhi 18:6a4db94011d3 34 if (g_sys_init == 0) {
sahilmgandhi 18:6a4db94011d3 35 sysclk_init();
sahilmgandhi 18:6a4db94011d3 36 system_board_init();
sahilmgandhi 18:6a4db94011d3 37 g_sys_init = 1;
sahilmgandhi 18:6a4db94011d3 38 }
sahilmgandhi 18:6a4db94011d3 39 obj->pin = pin;
sahilmgandhi 18:6a4db94011d3 40
sahilmgandhi 18:6a4db94011d3 41 ioport_set_pin_dir(pin, IOPORT_DIR_INPUT);
sahilmgandhi 18:6a4db94011d3 42 ioport_set_pin_mode(pin, IOPORT_MODE_PULLUP);
sahilmgandhi 18:6a4db94011d3 43 }
sahilmgandhi 18:6a4db94011d3 44
sahilmgandhi 18:6a4db94011d3 45 void gpio_mode(gpio_t *obj, PinMode mode)
sahilmgandhi 18:6a4db94011d3 46 {
sahilmgandhi 18:6a4db94011d3 47 MBED_ASSERT(obj->pin != (PinName)NC);
sahilmgandhi 18:6a4db94011d3 48 obj->mode = mode;
sahilmgandhi 18:6a4db94011d3 49 switch (mode) {
sahilmgandhi 18:6a4db94011d3 50 case PullNone :
sahilmgandhi 18:6a4db94011d3 51 ioport_set_pin_mode(obj->pin, IOPORT_MODE_OPEN_DRAIN);
sahilmgandhi 18:6a4db94011d3 52 break;
sahilmgandhi 18:6a4db94011d3 53 case PullUp:
sahilmgandhi 18:6a4db94011d3 54 ioport_set_pin_mode(obj->pin, IOPORT_MODE_PULLUP);
sahilmgandhi 18:6a4db94011d3 55 break;
sahilmgandhi 18:6a4db94011d3 56 case PullDown:
sahilmgandhi 18:6a4db94011d3 57 ioport_set_pin_mode(obj->pin, IOPORT_MODE_PULLDOWN);
sahilmgandhi 18:6a4db94011d3 58 break;
sahilmgandhi 18:6a4db94011d3 59 }
sahilmgandhi 18:6a4db94011d3 60 }
sahilmgandhi 18:6a4db94011d3 61
sahilmgandhi 18:6a4db94011d3 62 void gpio_dir(gpio_t *obj, PinDirection direction)
sahilmgandhi 18:6a4db94011d3 63 {
sahilmgandhi 18:6a4db94011d3 64 MBED_ASSERT(obj->pin != (PinName)NC);
sahilmgandhi 18:6a4db94011d3 65 obj->direction = direction;
sahilmgandhi 18:6a4db94011d3 66 switch (direction) {
sahilmgandhi 18:6a4db94011d3 67 case PIN_INPUT :
sahilmgandhi 18:6a4db94011d3 68 ioport_set_pin_dir(obj->pin, IOPORT_DIR_INPUT);
sahilmgandhi 18:6a4db94011d3 69 break;
sahilmgandhi 18:6a4db94011d3 70 case PIN_OUTPUT:
sahilmgandhi 18:6a4db94011d3 71 ioport_set_pin_dir(obj->pin, IOPORT_DIR_OUTPUT);
sahilmgandhi 18:6a4db94011d3 72 break;
sahilmgandhi 18:6a4db94011d3 73 case PIN_INPUT_OUTPUT:
sahilmgandhi 18:6a4db94011d3 74 ioport_set_pin_dir(obj->pin, IOPORT_DIR_OUTPUT);
sahilmgandhi 18:6a4db94011d3 75 break;
sahilmgandhi 18:6a4db94011d3 76 }
sahilmgandhi 18:6a4db94011d3 77 }