mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
targets/hal/TARGET_NXP/TARGET_LPC11UXX/gpio_api.c
- Committer:
- bogdanm
- Date:
- 2013-08-05
- Revision:
- 13:0645d8841f51
- Parent:
- vendor/NXP/LPC11U24/hal/gpio_api.c@ 10:3bc89ef62ce7
- Child:
- 113:65a335a675de
File content as of revision 13:0645d8841f51:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "gpio_api.h" #include "pinmap.h" uint32_t gpio_set(PinName pin) { int f = ((pin == P0_11) || (pin == P0_12) || (pin == P0_13) || (pin == P0_14)) ? (1) : (0); pin_function(pin, f); return (1 << ((int)pin & 0x1F)); } void gpio_init(gpio_t *obj, PinName pin, PinDirection direction) { if(pin == NC) return; obj->pin = pin; obj->mask = gpio_set(pin); unsigned int port = (unsigned int)pin >> PORT_SHIFT; obj->reg_set = &LPC_GPIO->SET[port]; obj->reg_clr = &LPC_GPIO->CLR[port]; obj->reg_in = &LPC_GPIO->PIN[port]; obj->reg_dir = &LPC_GPIO->DIR[port]; gpio_dir(obj, direction); switch (direction) { case PIN_OUTPUT: pin_mode(pin, PullNone); break; case PIN_INPUT : pin_mode(pin, PullDown); break; } } void gpio_mode(gpio_t *obj, PinMode mode) { pin_mode(obj->pin, mode); } void gpio_dir(gpio_t *obj, PinDirection direction) { switch (direction) { case PIN_INPUT : *obj->reg_dir &= ~obj->mask; break; case PIN_OUTPUT: *obj->reg_dir |= obj->mask; break; } }