Ermanno Brusadin / mbed

mbed library sources

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

common/pinmap_common.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 "pinmap.h"
ebrus 0:6bc4ac881c8e 17 #include "mbed_error.h"
ebrus 0:6bc4ac881c8e 18
ebrus 0:6bc4ac881c8e 19 void pinmap_pinout(PinName pin, const PinMap *map) {
ebrus 0:6bc4ac881c8e 20 if (pin == NC)
ebrus 0:6bc4ac881c8e 21 return;
ebrus 0:6bc4ac881c8e 22
ebrus 0:6bc4ac881c8e 23 while (map->pin != NC) {
ebrus 0:6bc4ac881c8e 24 if (map->pin == pin) {
ebrus 0:6bc4ac881c8e 25 pin_function(pin, map->function);
ebrus 0:6bc4ac881c8e 26
ebrus 0:6bc4ac881c8e 27 pin_mode(pin, PullNone);
ebrus 0:6bc4ac881c8e 28 return;
ebrus 0:6bc4ac881c8e 29 }
ebrus 0:6bc4ac881c8e 30 map++;
ebrus 0:6bc4ac881c8e 31 }
ebrus 0:6bc4ac881c8e 32 error("could not pinout");
ebrus 0:6bc4ac881c8e 33 }
ebrus 0:6bc4ac881c8e 34
ebrus 0:6bc4ac881c8e 35 uint32_t pinmap_merge(uint32_t a, uint32_t b) {
ebrus 0:6bc4ac881c8e 36 // both are the same (inc both NC)
ebrus 0:6bc4ac881c8e 37 if (a == b)
ebrus 0:6bc4ac881c8e 38 return a;
ebrus 0:6bc4ac881c8e 39
ebrus 0:6bc4ac881c8e 40 // one (or both) is not connected
ebrus 0:6bc4ac881c8e 41 if (a == (uint32_t)NC)
ebrus 0:6bc4ac881c8e 42 return b;
ebrus 0:6bc4ac881c8e 43 if (b == (uint32_t)NC)
ebrus 0:6bc4ac881c8e 44 return a;
ebrus 0:6bc4ac881c8e 45
ebrus 0:6bc4ac881c8e 46 // mis-match error case
ebrus 0:6bc4ac881c8e 47 error("pinmap mis-match");
ebrus 0:6bc4ac881c8e 48 return (uint32_t)NC;
ebrus 0:6bc4ac881c8e 49 }
ebrus 0:6bc4ac881c8e 50
ebrus 0:6bc4ac881c8e 51 uint32_t pinmap_find_peripheral(PinName pin, const PinMap* map) {
ebrus 0:6bc4ac881c8e 52 while (map->pin != NC) {
ebrus 0:6bc4ac881c8e 53 if (map->pin == pin)
ebrus 0:6bc4ac881c8e 54 return map->peripheral;
ebrus 0:6bc4ac881c8e 55 map++;
ebrus 0:6bc4ac881c8e 56 }
ebrus 0:6bc4ac881c8e 57 return (uint32_t)NC;
ebrus 0:6bc4ac881c8e 58 }
ebrus 0:6bc4ac881c8e 59
ebrus 0:6bc4ac881c8e 60 uint32_t pinmap_peripheral(PinName pin, const PinMap* map) {
ebrus 0:6bc4ac881c8e 61 uint32_t peripheral = (uint32_t)NC;
ebrus 0:6bc4ac881c8e 62
ebrus 0:6bc4ac881c8e 63 if (pin == (PinName)NC)
ebrus 0:6bc4ac881c8e 64 return (uint32_t)NC;
ebrus 0:6bc4ac881c8e 65 peripheral = pinmap_find_peripheral(pin, map);
ebrus 0:6bc4ac881c8e 66 if ((uint32_t)NC == peripheral) // no mapping available
ebrus 0:6bc4ac881c8e 67 error("pinmap not found for peripheral");
ebrus 0:6bc4ac881c8e 68 return peripheral;
ebrus 0:6bc4ac881c8e 69 }