mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
targets/hal/TARGET_NXP/TARGET_LPC11UXX/gpio_api.c@13:0645d8841f51, 2013-08-05 (annotated)
- Committer:
- bogdanm
- Date:
- Mon Aug 05 14:12:34 2013 +0300
- Revision:
- 13:0645d8841f51
- Parent:
- vendor/NXP/LPC11U24/hal/gpio_api.c@10:3bc89ef62ce7
- Child:
- 113:65a335a675de
Update mbed sources to revision 64
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 | */ |
emilmont | 10:3bc89ef62ce7 | 16 | #include "gpio_api.h" |
emilmont | 10:3bc89ef62ce7 | 17 | #include "pinmap.h" |
emilmont | 10:3bc89ef62ce7 | 18 | |
emilmont | 10:3bc89ef62ce7 | 19 | uint32_t gpio_set(PinName pin) { |
emilmont | 10:3bc89ef62ce7 | 20 | int f = ((pin == P0_11) || |
emilmont | 10:3bc89ef62ce7 | 21 | (pin == P0_12) || |
emilmont | 10:3bc89ef62ce7 | 22 | (pin == P0_13) || |
emilmont | 10:3bc89ef62ce7 | 23 | (pin == P0_14)) ? (1) : (0); |
emilmont | 10:3bc89ef62ce7 | 24 | |
emilmont | 10:3bc89ef62ce7 | 25 | pin_function(pin, f); |
emilmont | 10:3bc89ef62ce7 | 26 | |
emilmont | 10:3bc89ef62ce7 | 27 | return (1 << ((int)pin & 0x1F)); |
emilmont | 10:3bc89ef62ce7 | 28 | } |
emilmont | 10:3bc89ef62ce7 | 29 | |
emilmont | 10:3bc89ef62ce7 | 30 | void gpio_init(gpio_t *obj, PinName pin, PinDirection direction) { |
emilmont | 10:3bc89ef62ce7 | 31 | if(pin == NC) return; |
emilmont | 10:3bc89ef62ce7 | 32 | |
emilmont | 10:3bc89ef62ce7 | 33 | obj->pin = pin; |
emilmont | 10:3bc89ef62ce7 | 34 | obj->mask = gpio_set(pin); |
emilmont | 10:3bc89ef62ce7 | 35 | |
emilmont | 10:3bc89ef62ce7 | 36 | unsigned int port = (unsigned int)pin >> PORT_SHIFT; |
emilmont | 10:3bc89ef62ce7 | 37 | |
emilmont | 10:3bc89ef62ce7 | 38 | obj->reg_set = &LPC_GPIO->SET[port]; |
emilmont | 10:3bc89ef62ce7 | 39 | obj->reg_clr = &LPC_GPIO->CLR[port]; |
emilmont | 10:3bc89ef62ce7 | 40 | obj->reg_in = &LPC_GPIO->PIN[port]; |
emilmont | 10:3bc89ef62ce7 | 41 | obj->reg_dir = &LPC_GPIO->DIR[port]; |
emilmont | 10:3bc89ef62ce7 | 42 | |
emilmont | 10:3bc89ef62ce7 | 43 | gpio_dir(obj, direction); |
emilmont | 10:3bc89ef62ce7 | 44 | switch (direction) { |
emilmont | 10:3bc89ef62ce7 | 45 | case PIN_OUTPUT: pin_mode(pin, PullNone); break; |
emilmont | 10:3bc89ef62ce7 | 46 | case PIN_INPUT : pin_mode(pin, PullDown); break; |
emilmont | 10:3bc89ef62ce7 | 47 | } |
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) { |
emilmont | 10:3bc89ef62ce7 | 55 | switch (direction) { |
emilmont | 10:3bc89ef62ce7 | 56 | case PIN_INPUT : *obj->reg_dir &= ~obj->mask; break; |
emilmont | 10:3bc89ef62ce7 | 57 | case PIN_OUTPUT: *obj->reg_dir |= obj->mask; break; |
emilmont | 10:3bc89ef62ce7 | 58 | } |
emilmont | 10:3bc89ef62ce7 | 59 | } |