Ermanno Brusadin / mbed

mbed library sources

Dependents:   FRDM-KL46Z_LCD_Test FRDM-KL46Z_LCD_Test FRDM-KL46Z_Plantilla FRDM-KL46Z_Plantilla ... more

targets/hal/TARGET_Freescale/TARGET_KLXX/port_api.c@0:6bc4ac881c8e, 2016-07-28 (annotated)

Committer:
ebrus
Date:
Thu Jul 28 15:56:34 2016 +0000
Revision:
0:6bc4ac881c8e
1;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ebrus 0:6bc4ac881c8e 1 /* mbed Microcontroller Library
ebrus 0:6bc4ac881c8e 2 * Copyright (c) 2006-2013 ARM Limited
ebrus 0:6bc4ac881c8e 3 *
ebrus 0:6bc4ac881c8e 4 * Licensed under the Apache License, Version 2.0 (the "License");
ebrus 0:6bc4ac881c8e 5 * you may not use this file except in compliance with the License.
ebrus 0:6bc4ac881c8e 6 * You may obtain a copy of the License at
ebrus 0:6bc4ac881c8e 7 *
ebrus 0:6bc4ac881c8e 8 * http://www.apache.org/licenses/LICENSE-2.0
ebrus 0:6bc4ac881c8e 9 *
ebrus 0:6bc4ac881c8e 10 * Unless required by applicable law or agreed to in writing, software
ebrus 0:6bc4ac881c8e 11 * distributed under the License is distributed on an "AS IS" BASIS,
ebrus 0:6bc4ac881c8e 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ebrus 0:6bc4ac881c8e 13 * See the License for the specific language governing permissions and
ebrus 0:6bc4ac881c8e 14 * limitations under the License.
ebrus 0:6bc4ac881c8e 15 */
ebrus 0:6bc4ac881c8e 16 #include "port_api.h"
ebrus 0:6bc4ac881c8e 17 #include "pinmap.h"
ebrus 0:6bc4ac881c8e 18 #include "gpio_api.h"
ebrus 0:6bc4ac881c8e 19
ebrus 0:6bc4ac881c8e 20 PinName port_pin(PortName port, int pin_n) {
ebrus 0:6bc4ac881c8e 21 return (PinName)((port << PORT_SHIFT) | (pin_n << 2));
ebrus 0:6bc4ac881c8e 22 }
ebrus 0:6bc4ac881c8e 23
ebrus 0:6bc4ac881c8e 24 void port_init(port_t *obj, PortName port, int mask, PinDirection dir) {
ebrus 0:6bc4ac881c8e 25 obj->port = port;
ebrus 0:6bc4ac881c8e 26 obj->mask = mask;
ebrus 0:6bc4ac881c8e 27
ebrus 0:6bc4ac881c8e 28 FGPIO_Type *reg = (FGPIO_Type *)(FPTA_BASE + port * 0x40);
ebrus 0:6bc4ac881c8e 29
ebrus 0:6bc4ac881c8e 30 obj->reg_out = &reg->PDOR;
ebrus 0:6bc4ac881c8e 31 obj->reg_in = &reg->PDIR;
ebrus 0:6bc4ac881c8e 32 obj->reg_dir = &reg->PDDR;
ebrus 0:6bc4ac881c8e 33
ebrus 0:6bc4ac881c8e 34 uint32_t i;
ebrus 0:6bc4ac881c8e 35 // The function is set per pin: reuse gpio logic
ebrus 0:6bc4ac881c8e 36 for (i=0; i<32; i++) {
ebrus 0:6bc4ac881c8e 37 if (obj->mask & (1<<i)) {
ebrus 0:6bc4ac881c8e 38 gpio_set(port_pin(obj->port, i));
ebrus 0:6bc4ac881c8e 39 }
ebrus 0:6bc4ac881c8e 40 }
ebrus 0:6bc4ac881c8e 41
ebrus 0:6bc4ac881c8e 42 port_dir(obj, dir);
ebrus 0:6bc4ac881c8e 43 }
ebrus 0:6bc4ac881c8e 44
ebrus 0:6bc4ac881c8e 45 void port_mode(port_t *obj, PinMode mode) {
ebrus 0:6bc4ac881c8e 46 uint32_t i;
ebrus 0:6bc4ac881c8e 47 // The mode is set per pin: reuse pinmap logic
ebrus 0:6bc4ac881c8e 48 for (i=0; i<32; i++) {
ebrus 0:6bc4ac881c8e 49 if (obj->mask & (1<<i)) {
ebrus 0:6bc4ac881c8e 50 pin_mode(port_pin(obj->port, i), mode);
ebrus 0:6bc4ac881c8e 51 }
ebrus 0:6bc4ac881c8e 52 }
ebrus 0:6bc4ac881c8e 53 }
ebrus 0:6bc4ac881c8e 54
ebrus 0:6bc4ac881c8e 55 void port_dir(port_t *obj, PinDirection dir) {
ebrus 0:6bc4ac881c8e 56 switch (dir) {
ebrus 0:6bc4ac881c8e 57 case PIN_INPUT : *obj->reg_dir &= ~obj->mask; break;
ebrus 0:6bc4ac881c8e 58 case PIN_OUTPUT: *obj->reg_dir |= obj->mask; break;
ebrus 0:6bc4ac881c8e 59 }
ebrus 0:6bc4ac881c8e 60 }
ebrus 0:6bc4ac881c8e 61
ebrus 0:6bc4ac881c8e 62 void port_write(port_t *obj, int value) {
ebrus 0:6bc4ac881c8e 63 *obj->reg_out = (*obj->reg_in & ~obj->mask) | (value & obj->mask);
ebrus 0:6bc4ac881c8e 64 }
ebrus 0:6bc4ac881c8e 65
ebrus 0:6bc4ac881c8e 66 int port_read(port_t *obj) {
ebrus 0:6bc4ac881c8e 67 return (*obj->reg_in & obj->mask);
ebrus 0:6bc4ac881c8e 68 }