Marco Zecchini / Mbed OS Example_RTOS

Rtos API example

mbed-os/hal/mbed_pinmap_common.c@0:9fca2b23d0ba, 2019-02-23 (annotated)

Committer:
marcozecchini
Date:
Sat Feb 23 12:13:36 2019 +0000
Revision:
0:9fca2b23d0ba
final commit

Who changed what in which revision?

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marcozecchini 0:9fca2b23d0ba 1 /* mbed Microcontroller Library
marcozecchini 0:9fca2b23d0ba 2 * Copyright (c) 2006-2013 ARM Limited
marcozecchini 0:9fca2b23d0ba 3 *
marcozecchini 0:9fca2b23d0ba 4 * Licensed under the Apache License, Version 2.0 (the "License");
marcozecchini 0:9fca2b23d0ba 5 * you may not use this file except in compliance with the License.
marcozecchini 0:9fca2b23d0ba 6 * You may obtain a copy of the License at
marcozecchini 0:9fca2b23d0ba 7 *
marcozecchini 0:9fca2b23d0ba 8 * http://www.apache.org/licenses/LICENSE-2.0
marcozecchini 0:9fca2b23d0ba 9 *
marcozecchini 0:9fca2b23d0ba 10 * Unless required by applicable law or agreed to in writing, software
marcozecchini 0:9fca2b23d0ba 11 * distributed under the License is distributed on an "AS IS" BASIS,
marcozecchini 0:9fca2b23d0ba 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
marcozecchini 0:9fca2b23d0ba 13 * See the License for the specific language governing permissions and
marcozecchini 0:9fca2b23d0ba 14 * limitations under the License.
marcozecchini 0:9fca2b23d0ba 15 */
marcozecchini 0:9fca2b23d0ba 16 #include "hal/pinmap.h"
marcozecchini 0:9fca2b23d0ba 17 #include "platform/mbed_error.h"
marcozecchini 0:9fca2b23d0ba 18
marcozecchini 0:9fca2b23d0ba 19 void pinmap_pinout(PinName pin, const PinMap *map) {
marcozecchini 0:9fca2b23d0ba 20 if (pin == NC)
marcozecchini 0:9fca2b23d0ba 21 return;
marcozecchini 0:9fca2b23d0ba 22
marcozecchini 0:9fca2b23d0ba 23 while (map->pin != NC) {
marcozecchini 0:9fca2b23d0ba 24 if (map->pin == pin) {
marcozecchini 0:9fca2b23d0ba 25 pin_function(pin, map->function);
marcozecchini 0:9fca2b23d0ba 26
marcozecchini 0:9fca2b23d0ba 27 pin_mode(pin, PullNone);
marcozecchini 0:9fca2b23d0ba 28 return;
marcozecchini 0:9fca2b23d0ba 29 }
marcozecchini 0:9fca2b23d0ba 30 map++;
marcozecchini 0:9fca2b23d0ba 31 }
marcozecchini 0:9fca2b23d0ba 32 error("could not pinout");
marcozecchini 0:9fca2b23d0ba 33 }
marcozecchini 0:9fca2b23d0ba 34
marcozecchini 0:9fca2b23d0ba 35 uint32_t pinmap_merge(uint32_t a, uint32_t b) {
marcozecchini 0:9fca2b23d0ba 36 // both are the same (inc both NC)
marcozecchini 0:9fca2b23d0ba 37 if (a == b)
marcozecchini 0:9fca2b23d0ba 38 return a;
marcozecchini 0:9fca2b23d0ba 39
marcozecchini 0:9fca2b23d0ba 40 // one (or both) is not connected
marcozecchini 0:9fca2b23d0ba 41 if (a == (uint32_t)NC)
marcozecchini 0:9fca2b23d0ba 42 return b;
marcozecchini 0:9fca2b23d0ba 43 if (b == (uint32_t)NC)
marcozecchini 0:9fca2b23d0ba 44 return a;
marcozecchini 0:9fca2b23d0ba 45
marcozecchini 0:9fca2b23d0ba 46 // mis-match error case
marcozecchini 0:9fca2b23d0ba 47 error("pinmap mis-match");
marcozecchini 0:9fca2b23d0ba 48 return (uint32_t)NC;
marcozecchini 0:9fca2b23d0ba 49 }
marcozecchini 0:9fca2b23d0ba 50
marcozecchini 0:9fca2b23d0ba 51 uint32_t pinmap_find_peripheral(PinName pin, const PinMap* map) {
marcozecchini 0:9fca2b23d0ba 52 while (map->pin != NC) {
marcozecchini 0:9fca2b23d0ba 53 if (map->pin == pin)
marcozecchini 0:9fca2b23d0ba 54 return map->peripheral;
marcozecchini 0:9fca2b23d0ba 55 map++;
marcozecchini 0:9fca2b23d0ba 56 }
marcozecchini 0:9fca2b23d0ba 57 return (uint32_t)NC;
marcozecchini 0:9fca2b23d0ba 58 }
marcozecchini 0:9fca2b23d0ba 59
marcozecchini 0:9fca2b23d0ba 60 uint32_t pinmap_peripheral(PinName pin, const PinMap* map) {
marcozecchini 0:9fca2b23d0ba 61 uint32_t peripheral = (uint32_t)NC;
marcozecchini 0:9fca2b23d0ba 62
marcozecchini 0:9fca2b23d0ba 63 if (pin == (PinName)NC)
marcozecchini 0:9fca2b23d0ba 64 return (uint32_t)NC;
marcozecchini 0:9fca2b23d0ba 65 peripheral = pinmap_find_peripheral(pin, map);
marcozecchini 0:9fca2b23d0ba 66 if ((uint32_t)NC == peripheral) // no mapping available
marcozecchini 0:9fca2b23d0ba 67 error("pinmap not found for peripheral");
marcozecchini 0:9fca2b23d0ba 68 return peripheral;
marcozecchini 0:9fca2b23d0ba 69 }
marcozecchini 0:9fca2b23d0ba 70
marcozecchini 0:9fca2b23d0ba 71 uint32_t pinmap_find_function(PinName pin, const PinMap* map) {
marcozecchini 0:9fca2b23d0ba 72 while (map->pin != NC) {
marcozecchini 0:9fca2b23d0ba 73 if (map->pin == pin)
marcozecchini 0:9fca2b23d0ba 74 return map->function;
marcozecchini 0:9fca2b23d0ba 75 map++;
marcozecchini 0:9fca2b23d0ba 76 }
marcozecchini 0:9fca2b23d0ba 77 return (uint32_t)NC;
marcozecchini 0:9fca2b23d0ba 78 }
marcozecchini 0:9fca2b23d0ba 79
marcozecchini 0:9fca2b23d0ba 80 uint32_t pinmap_function(PinName pin, const PinMap* map) {
marcozecchini 0:9fca2b23d0ba 81 uint32_t function = (uint32_t)NC;
marcozecchini 0:9fca2b23d0ba 82
marcozecchini 0:9fca2b23d0ba 83 if (pin == (PinName)NC)
marcozecchini 0:9fca2b23d0ba 84 return (uint32_t)NC;
marcozecchini 0:9fca2b23d0ba 85 function = pinmap_find_function(pin, map);
marcozecchini 0:9fca2b23d0ba 86 if ((uint32_t)NC == function) // no mapping available
marcozecchini 0:9fca2b23d0ba 87 error("pinmap not found for function");
marcozecchini 0:9fca2b23d0ba 88 return function;
marcozecchini 0:9fca2b23d0ba 89 }