mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/TARGET_MCU_K64F/port_api.c
- Committer:
- shaoziyang
- Date:
- 2014-09-13
- Revision:
- 323:9e901b0a5aa1
- Parent:
- 320:be04b2b1e3f2
File content as of revision 323:9e901b0a5aa1:
/* 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 "port_api.h" #if DEVICE_PORTIN || DEVICE_PORTOUT #include "pinmap.h" #include "gpio_api.h" PinName port_pin(PortName port, int pin_n) { return (PinName)((port << GPIO_PORT_SHIFT) | pin_n); } void port_init(port_t *obj, PortName port, int mask, PinDirection dir) { obj->port = port; obj->mask = mask; // The function is set per pin: reuse gpio logic for (uint32_t i = 0; i < 32; i++) { if (obj->mask & (1 << i)) { gpio_set(port_pin(obj->port, i)); } } port_dir(obj, dir); } void port_mode(port_t *obj, PinMode mode) { // The mode is set per pin: reuse pinmap logic for (uint32_t i = 0; i < 32; i++) { if (obj->mask & (1 << i)) { pin_mode(port_pin(obj->port, i), mode); } } } void port_dir(port_t *obj, PinDirection dir) { uint32_t direction = gpio_hal_get_port_direction((uint32_t)obj->port); switch (dir) { case PIN_INPUT : direction &= ~obj->mask; gpio_hal_set_port_direction((uint32_t)obj->port, direction); break; case PIN_OUTPUT: direction |= obj->mask; gpio_hal_set_port_direction((uint32_t)obj->port, direction); break; } } void port_write(port_t *obj, int value) { uint32_t input = gpio_hal_read_port_input((uint32_t)obj->port) & ~obj->mask; gpio_hal_write_port_output((uint32_t)obj->port, input | (uint32_t)(value & obj->mask)); } int port_read(port_t *obj) { return (int)(gpio_hal_read_port_input((uint32_t)obj->port) & obj->mask); } #endif