Mouse code for the MacroRat
mbed-dev/targets/TARGET_NXP/TARGET_LPC176X/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?
User | Revision | Line number | New 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 | pin_function(pin, 0); |
sahilmgandhi | 18:6a4db94011d3 | 23 | return (1 << ((int)pin & 0x1F)); |
sahilmgandhi | 18:6a4db94011d3 | 24 | } |
sahilmgandhi | 18:6a4db94011d3 | 25 | |
sahilmgandhi | 18:6a4db94011d3 | 26 | void gpio_init(gpio_t *obj, PinName pin) { |
sahilmgandhi | 18:6a4db94011d3 | 27 | obj->pin = pin; |
sahilmgandhi | 18:6a4db94011d3 | 28 | if (pin == (PinName)NC) |
sahilmgandhi | 18:6a4db94011d3 | 29 | return; |
sahilmgandhi | 18:6a4db94011d3 | 30 | |
sahilmgandhi | 18:6a4db94011d3 | 31 | obj->mask = gpio_set(pin); |
sahilmgandhi | 18:6a4db94011d3 | 32 | LPC_GPIO_TypeDef *port_reg = (LPC_GPIO_TypeDef *)((int)pin & ~0x1F); |
sahilmgandhi | 18:6a4db94011d3 | 33 | obj->reg_set = &port_reg->FIOSET; |
sahilmgandhi | 18:6a4db94011d3 | 34 | obj->reg_clr = &port_reg->FIOCLR; |
sahilmgandhi | 18:6a4db94011d3 | 35 | obj->reg_in = &port_reg->FIOPIN; |
sahilmgandhi | 18:6a4db94011d3 | 36 | obj->reg_dir = &port_reg->FIODIR; |
sahilmgandhi | 18:6a4db94011d3 | 37 | } |
sahilmgandhi | 18:6a4db94011d3 | 38 | |
sahilmgandhi | 18:6a4db94011d3 | 39 | void gpio_mode(gpio_t *obj, PinMode mode) { |
sahilmgandhi | 18:6a4db94011d3 | 40 | pin_mode(obj->pin, mode); |
sahilmgandhi | 18:6a4db94011d3 | 41 | } |
sahilmgandhi | 18:6a4db94011d3 | 42 | |
sahilmgandhi | 18:6a4db94011d3 | 43 | void gpio_dir(gpio_t *obj, PinDirection direction) { |
sahilmgandhi | 18:6a4db94011d3 | 44 | MBED_ASSERT(obj->pin != (PinName)NC); |
sahilmgandhi | 18:6a4db94011d3 | 45 | switch (direction) { |
sahilmgandhi | 18:6a4db94011d3 | 46 | case PIN_INPUT : |
sahilmgandhi | 18:6a4db94011d3 | 47 | *obj->reg_dir &= ~obj->mask; |
sahilmgandhi | 18:6a4db94011d3 | 48 | break; |
sahilmgandhi | 18:6a4db94011d3 | 49 | case PIN_OUTPUT: |
sahilmgandhi | 18:6a4db94011d3 | 50 | *obj->reg_dir |= obj->mask; |
sahilmgandhi | 18:6a4db94011d3 | 51 | break; |
sahilmgandhi | 18:6a4db94011d3 | 52 | } |
sahilmgandhi | 18:6a4db94011d3 | 53 | } |