mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
targets/hal/TARGET_NXP/TARGET_LPC11UXX/gpio_api.c@323:9e901b0a5aa1, 2014-09-13 (annotated)
- Committer:
- shaoziyang
- Date:
- Sat Sep 13 14:25:46 2014 +0000
- Revision:
- 323:9e901b0a5aa1
- Parent:
- 227:7bd0639b8911
test with CLOCK_SETUP = 0
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
emilmont | 10:3bc89ef62ce7 | 1 | /* mbed Microcontroller Library |
emilmont | 10:3bc89ef62ce7 | 2 | * Copyright (c) 2006-2013 ARM Limited |
emilmont | 10:3bc89ef62ce7 | 3 | * |
emilmont | 10:3bc89ef62ce7 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
emilmont | 10:3bc89ef62ce7 | 5 | * you may not use this file except in compliance with the License. |
emilmont | 10:3bc89ef62ce7 | 6 | * You may obtain a copy of the License at |
emilmont | 10:3bc89ef62ce7 | 7 | * |
emilmont | 10:3bc89ef62ce7 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
emilmont | 10:3bc89ef62ce7 | 9 | * |
emilmont | 10:3bc89ef62ce7 | 10 | * Unless required by applicable law or agreed to in writing, software |
emilmont | 10:3bc89ef62ce7 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
emilmont | 10:3bc89ef62ce7 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
emilmont | 10:3bc89ef62ce7 | 13 | * See the License for the specific language governing permissions and |
emilmont | 10:3bc89ef62ce7 | 14 | * limitations under the License. |
emilmont | 10:3bc89ef62ce7 | 15 | */ |
mbed_official | 227:7bd0639b8911 | 16 | #include "mbed_assert.h" |
emilmont | 10:3bc89ef62ce7 | 17 | #include "gpio_api.h" |
emilmont | 10:3bc89ef62ce7 | 18 | #include "pinmap.h" |
emilmont | 10:3bc89ef62ce7 | 19 | |
emilmont | 10:3bc89ef62ce7 | 20 | uint32_t gpio_set(PinName pin) { |
mbed_official | 227:7bd0639b8911 | 21 | MBED_ASSERT(pin != (PinName)NC); |
mbed_official | 207:05668db47a72 | 22 | int f = ((pin == P0_0) || |
mbed_official | 207:05668db47a72 | 23 | (pin == P0_10) || |
mbed_official | 207:05668db47a72 | 24 | (pin == P0_11) || |
emilmont | 10:3bc89ef62ce7 | 25 | (pin == P0_12) || |
emilmont | 10:3bc89ef62ce7 | 26 | (pin == P0_13) || |
mbed_official | 207:05668db47a72 | 27 | (pin == P0_14) || |
mbed_official | 207:05668db47a72 | 28 | (pin == P0_15)) ? (1) : (0); |
emilmont | 10:3bc89ef62ce7 | 29 | |
emilmont | 10:3bc89ef62ce7 | 30 | pin_function(pin, f); |
emilmont | 10:3bc89ef62ce7 | 31 | |
emilmont | 10:3bc89ef62ce7 | 32 | return (1 << ((int)pin & 0x1F)); |
emilmont | 10:3bc89ef62ce7 | 33 | } |
emilmont | 10:3bc89ef62ce7 | 34 | |
mbed_official | 113:65a335a675de | 35 | void gpio_init(gpio_t *obj, PinName pin) { |
mbed_official | 227:7bd0639b8911 | 36 | obj->pin = pin; |
mbed_official | 227:7bd0639b8911 | 37 | if (pin == (PinName)NC) |
mbed_official | 227:7bd0639b8911 | 38 | return; |
emilmont | 10:3bc89ef62ce7 | 39 | |
emilmont | 10:3bc89ef62ce7 | 40 | obj->mask = gpio_set(pin); |
emilmont | 10:3bc89ef62ce7 | 41 | |
emilmont | 10:3bc89ef62ce7 | 42 | unsigned int port = (unsigned int)pin >> PORT_SHIFT; |
emilmont | 10:3bc89ef62ce7 | 43 | |
emilmont | 10:3bc89ef62ce7 | 44 | obj->reg_set = &LPC_GPIO->SET[port]; |
emilmont | 10:3bc89ef62ce7 | 45 | obj->reg_clr = &LPC_GPIO->CLR[port]; |
emilmont | 10:3bc89ef62ce7 | 46 | obj->reg_in = &LPC_GPIO->PIN[port]; |
emilmont | 10:3bc89ef62ce7 | 47 | obj->reg_dir = &LPC_GPIO->DIR[port]; |
emilmont | 10:3bc89ef62ce7 | 48 | } |
emilmont | 10:3bc89ef62ce7 | 49 | |
emilmont | 10:3bc89ef62ce7 | 50 | void gpio_mode(gpio_t *obj, PinMode mode) { |
emilmont | 10:3bc89ef62ce7 | 51 | pin_mode(obj->pin, mode); |
emilmont | 10:3bc89ef62ce7 | 52 | } |
emilmont | 10:3bc89ef62ce7 | 53 | |
emilmont | 10:3bc89ef62ce7 | 54 | void gpio_dir(gpio_t *obj, PinDirection direction) { |
mbed_official | 227:7bd0639b8911 | 55 | MBED_ASSERT(obj->pin != (PinName)NC); |
emilmont | 10:3bc89ef62ce7 | 56 | switch (direction) { |
mbed_official | 227:7bd0639b8911 | 57 | case PIN_INPUT : |
mbed_official | 227:7bd0639b8911 | 58 | *obj->reg_dir &= ~obj->mask; |
mbed_official | 227:7bd0639b8911 | 59 | break; |
mbed_official | 227:7bd0639b8911 | 60 | case PIN_OUTPUT: |
mbed_official | 227:7bd0639b8911 | 61 | *obj->reg_dir |= obj->mask; |
mbed_official | 227:7bd0639b8911 | 62 | break; |
emilmont | 10:3bc89ef62ce7 | 63 | } |
emilmont | 10:3bc89ef62ce7 | 64 | } |