mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/gpio_api.c@323:9e901b0a5aa1, 2014-09-13 (annotated)
- Committer:
- shaoziyang
- Date:
- Sat Sep 13 14:25:46 2014 +0000
- Revision:
- 323:9e901b0a5aa1
- Parent:
- 300:55638feb26a4
test with CLOCK_SETUP = 0
Who changed what in which revision?
User | Revision | Line number | New 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 | 227:7bd0639b8911 | 16 | #include "mbed_assert.h" |
mbed_official | 85:e1a8e879a6a9 | 17 | #include "gpio_api.h" |
mbed_official | 85:e1a8e879a6a9 | 18 | #include "pinmap.h" |
mbed_official | 85:e1a8e879a6a9 | 19 | |
mbed_official | 300:55638feb26a4 | 20 | void gpio_init(gpio_t *obj, PinName pin) |
mbed_official | 300:55638feb26a4 | 21 | { |
mbed_official | 227:7bd0639b8911 | 22 | obj->pin = pin; |
mbed_official | 300:55638feb26a4 | 23 | if (pin == (PinName)NC) { |
mbed_official | 227:7bd0639b8911 | 24 | return; |
mbed_official | 300:55638feb26a4 | 25 | } |
mbed_official | 85:e1a8e879a6a9 | 26 | |
mbed_official | 227:7bd0639b8911 | 27 | obj->mask = (1ul << pin); |
mbed_official | 85:e1a8e879a6a9 | 28 | |
mbed_official | 85:e1a8e879a6a9 | 29 | obj->reg_set = &NRF_GPIO->OUTSET; |
mbed_official | 85:e1a8e879a6a9 | 30 | obj->reg_clr = &NRF_GPIO->OUTCLR; |
mbed_official | 85:e1a8e879a6a9 | 31 | obj->reg_in = &NRF_GPIO->IN; |
mbed_official | 85:e1a8e879a6a9 | 32 | obj->reg_dir = &NRF_GPIO->DIR; |
mbed_official | 85:e1a8e879a6a9 | 33 | } |
mbed_official | 85:e1a8e879a6a9 | 34 | |
mbed_official | 300:55638feb26a4 | 35 | void gpio_mode(gpio_t *obj, PinMode mode) |
mbed_official | 300:55638feb26a4 | 36 | { |
mbed_official | 85:e1a8e879a6a9 | 37 | pin_mode(obj->pin, mode); |
mbed_official | 85:e1a8e879a6a9 | 38 | } |
mbed_official | 85:e1a8e879a6a9 | 39 | |
mbed_official | 300:55638feb26a4 | 40 | void gpio_dir(gpio_t *obj, PinDirection direction) |
mbed_official | 300:55638feb26a4 | 41 | { |
mbed_official | 227:7bd0639b8911 | 42 | MBED_ASSERT(obj->pin != (PinName)NC); |
mbed_official | 85:e1a8e879a6a9 | 43 | switch (direction) { |
mbed_official | 300:55638feb26a4 | 44 | case PIN_INPUT: |
mbed_official | 227:7bd0639b8911 | 45 | NRF_GPIO->PIN_CNF[obj->pin] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) |
mbed_official | 85:e1a8e879a6a9 | 46 | | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) |
mbed_official | 85:e1a8e879a6a9 | 47 | | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) |
mbed_official | 85:e1a8e879a6a9 | 48 | | (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos); |
mbed_official | 227:7bd0639b8911 | 49 | break; |
mbed_official | 227:7bd0639b8911 | 50 | case PIN_OUTPUT: |
mbed_official | 227:7bd0639b8911 | 51 | NRF_GPIO->PIN_CNF[obj->pin] = (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_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos) |
mbed_official | 85:e1a8e879a6a9 | 54 | | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) |
mbed_official | 85:e1a8e879a6a9 | 55 | | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos); |
mbed_official | 227:7bd0639b8911 | 56 | break; |
mbed_official | 85:e1a8e879a6a9 | 57 | } |
mbed_official | 85:e1a8e879a6a9 | 58 | } |