PHung Tung / DISCO-F746_WAV_PLAYER

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Dependencies:   F746_GUI SD_PlayerSkeleton F746_SAI_IO

SRC_STM32F7/common/pinmap_common.c@0:8ede47d38d10, 2019-06-04 (annotated)

Committer:
phungductung
Date:
Tue Jun 04 21:37:21 2019 +0000
Revision:
0:8ede47d38d10
SPKT

Who changed what in which revision?

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phungductung 0:8ede47d38d10 1 /* mbed Microcontroller Library
phungductung 0:8ede47d38d10 2 * Copyright (c) 2006-2013 ARM Limited
phungductung 0:8ede47d38d10 3 *
phungductung 0:8ede47d38d10 4 * Licensed under the Apache License, Version 2.0 (the "License");
phungductung 0:8ede47d38d10 5 * you may not use this file except in compliance with the License.
phungductung 0:8ede47d38d10 6 * You may obtain a copy of the License at
phungductung 0:8ede47d38d10 7 *
phungductung 0:8ede47d38d10 8 * http://www.apache.org/licenses/LICENSE-2.0
phungductung 0:8ede47d38d10 9 *
phungductung 0:8ede47d38d10 10 * Unless required by applicable law or agreed to in writing, software
phungductung 0:8ede47d38d10 11 * distributed under the License is distributed on an "AS IS" BASIS,
phungductung 0:8ede47d38d10 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
phungductung 0:8ede47d38d10 13 * See the License for the specific language governing permissions and
phungductung 0:8ede47d38d10 14 * limitations under the License.
phungductung 0:8ede47d38d10 15 */
phungductung 0:8ede47d38d10 16 #include "pinmap.h"
phungductung 0:8ede47d38d10 17 #include "mbed_error.h"
phungductung 0:8ede47d38d10 18
phungductung 0:8ede47d38d10 19 void pinmap_pinout(PinName pin, const PinMap *map) {
phungductung 0:8ede47d38d10 20 if (pin == NC)
phungductung 0:8ede47d38d10 21 return;
phungductung 0:8ede47d38d10 22
phungductung 0:8ede47d38d10 23 while (map->pin != NC) {
phungductung 0:8ede47d38d10 24 if (map->pin == pin) {
phungductung 0:8ede47d38d10 25 pin_function(pin, map->function);
phungductung 0:8ede47d38d10 26
phungductung 0:8ede47d38d10 27 pin_mode(pin, PullNone);
phungductung 0:8ede47d38d10 28 return;
phungductung 0:8ede47d38d10 29 }
phungductung 0:8ede47d38d10 30 map++;
phungductung 0:8ede47d38d10 31 }
phungductung 0:8ede47d38d10 32 error("could not pinout");
phungductung 0:8ede47d38d10 33 }
phungductung 0:8ede47d38d10 34
phungductung 0:8ede47d38d10 35 uint32_t pinmap_merge(uint32_t a, uint32_t b) {
phungductung 0:8ede47d38d10 36 // both are the same (inc both NC)
phungductung 0:8ede47d38d10 37 if (a == b)
phungductung 0:8ede47d38d10 38 return a;
phungductung 0:8ede47d38d10 39
phungductung 0:8ede47d38d10 40 // one (or both) is not connected
phungductung 0:8ede47d38d10 41 if (a == (uint32_t)NC)
phungductung 0:8ede47d38d10 42 return b;
phungductung 0:8ede47d38d10 43 if (b == (uint32_t)NC)
phungductung 0:8ede47d38d10 44 return a;
phungductung 0:8ede47d38d10 45
phungductung 0:8ede47d38d10 46 // mis-match error case
phungductung 0:8ede47d38d10 47 error("pinmap mis-match");
phungductung 0:8ede47d38d10 48 return (uint32_t)NC;
phungductung 0:8ede47d38d10 49 }
phungductung 0:8ede47d38d10 50
phungductung 0:8ede47d38d10 51 uint32_t pinmap_find_peripheral(PinName pin, const PinMap* map) {
phungductung 0:8ede47d38d10 52 while (map->pin != NC) {
phungductung 0:8ede47d38d10 53 if (map->pin == pin)
phungductung 0:8ede47d38d10 54 return map->peripheral;
phungductung 0:8ede47d38d10 55 map++;
phungductung 0:8ede47d38d10 56 }
phungductung 0:8ede47d38d10 57 return (uint32_t)NC;
phungductung 0:8ede47d38d10 58 }
phungductung 0:8ede47d38d10 59
phungductung 0:8ede47d38d10 60 uint32_t pinmap_peripheral(PinName pin, const PinMap* map) {
phungductung 0:8ede47d38d10 61 uint32_t peripheral = (uint32_t)NC;
phungductung 0:8ede47d38d10 62
phungductung 0:8ede47d38d10 63 if (pin == (PinName)NC)
phungductung 0:8ede47d38d10 64 return (uint32_t)NC;
phungductung 0:8ede47d38d10 65 peripheral = pinmap_find_peripheral(pin, map);
phungductung 0:8ede47d38d10 66 if ((uint32_t)NC == peripheral) // no mapping available
phungductung 0:8ede47d38d10 67 error("pinmap not found for peripheral");
phungductung 0:8ede47d38d10 68 return peripheral;
phungductung 0:8ede47d38d10 69 }
phungductung 0:8ede47d38d10 70
phungductung 0:8ede47d38d10 71 uint32_t pinmap_find_function(PinName pin, const PinMap* map) {
phungductung 0:8ede47d38d10 72 while (map->pin != NC) {
phungductung 0:8ede47d38d10 73 if (map->pin == pin)
phungductung 0:8ede47d38d10 74 return map->function;
phungductung 0:8ede47d38d10 75 map++;
phungductung 0:8ede47d38d10 76 }
phungductung 0:8ede47d38d10 77 return (uint32_t)NC;
phungductung 0:8ede47d38d10 78 }
phungductung 0:8ede47d38d10 79
phungductung 0:8ede47d38d10 80 uint32_t pinmap_function(PinName pin, const PinMap* map) {
phungductung 0:8ede47d38d10 81 uint32_t function = (uint32_t)NC;
phungductung 0:8ede47d38d10 82
phungductung 0:8ede47d38d10 83 if (pin == (PinName)NC)
phungductung 0:8ede47d38d10 84 return (uint32_t)NC;
phungductung 0:8ede47d38d10 85 function = pinmap_find_function(pin, map);
phungductung 0:8ede47d38d10 86 if ((uint32_t)NC == function) // no mapping available
phungductung 0:8ede47d38d10 87 error("pinmap not found for function");
phungductung 0:8ede47d38d10 88 return function;
phungductung 0:8ede47d38d10 89 }