mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

hal/mbed_pinmap_common.c@189:f392fc9709a3, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 22:31:08 2019 +0000
Revision:
189:f392fc9709a3
Parent:
187:0387e8f68319 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 149:156823d33999 1 /* mbed Microcontroller Library
<> 149:156823d33999 2 * Copyright (c) 2006-2013 ARM Limited
AnnaBridge 189:f392fc9709a3 3 * SPDX-License-Identifier: Apache-2.0
<> 149:156823d33999 4 *
<> 149:156823d33999 5 * Licensed under the Apache License, Version 2.0 (the "License");
<> 149:156823d33999 6 * you may not use this file except in compliance with the License.
<> 149:156823d33999 7 * You may obtain a copy of the License at
<> 149:156823d33999 8 *
<> 149:156823d33999 9 * http://www.apache.org/licenses/LICENSE-2.0
<> 149:156823d33999 10 *
<> 149:156823d33999 11 * Unless required by applicable law or agreed to in writing, software
<> 149:156823d33999 12 * distributed under the License is distributed on an "AS IS" BASIS,
<> 149:156823d33999 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 149:156823d33999 14 * See the License for the specific language governing permissions and
<> 149:156823d33999 15 * limitations under the License.
<> 149:156823d33999 16 */
<> 149:156823d33999 17 #include "hal/pinmap.h"
<> 149:156823d33999 18 #include "platform/mbed_error.h"
<> 149:156823d33999 19
AnnaBridge 187:0387e8f68319 20 void pinmap_pinout(PinName pin, const PinMap *map)
AnnaBridge 187:0387e8f68319 21 {
AnnaBridge 187:0387e8f68319 22 if (pin == NC) {
<> 149:156823d33999 23 return;
AnnaBridge 187:0387e8f68319 24 }
<> 149:156823d33999 25
<> 149:156823d33999 26 while (map->pin != NC) {
<> 149:156823d33999 27 if (map->pin == pin) {
<> 149:156823d33999 28 pin_function(pin, map->function);
<> 149:156823d33999 29
<> 149:156823d33999 30 pin_mode(pin, PullNone);
<> 149:156823d33999 31 return;
<> 149:156823d33999 32 }
<> 149:156823d33999 33 map++;
<> 149:156823d33999 34 }
Anna Bridge 186:707f6e361f3e 35 MBED_ERROR1(MBED_MAKE_ERROR(MBED_MODULE_PLATFORM, MBED_ERROR_CODE_PINMAP_INVALID), "could not pinout", pin);
<> 149:156823d33999 36 }
<> 149:156823d33999 37
AnnaBridge 187:0387e8f68319 38 uint32_t pinmap_merge(uint32_t a, uint32_t b)
AnnaBridge 187:0387e8f68319 39 {
<> 149:156823d33999 40 // both are the same (inc both NC)
AnnaBridge 187:0387e8f68319 41 if (a == b) {
<> 149:156823d33999 42 return a;
AnnaBridge 187:0387e8f68319 43 }
<> 149:156823d33999 44
<> 149:156823d33999 45 // one (or both) is not connected
AnnaBridge 187:0387e8f68319 46 if (a == (uint32_t)NC) {
<> 149:156823d33999 47 return b;
AnnaBridge 187:0387e8f68319 48 }
AnnaBridge 187:0387e8f68319 49 if (b == (uint32_t)NC) {
<> 149:156823d33999 50 return a;
AnnaBridge 187:0387e8f68319 51 }
<> 149:156823d33999 52
<> 149:156823d33999 53 // mis-match error case
Anna Bridge 186:707f6e361f3e 54 MBED_ERROR1(MBED_MAKE_ERROR(MBED_MODULE_PLATFORM, MBED_ERROR_CODE_PINMAP_INVALID), "pinmap mis-match", a);
<> 149:156823d33999 55 return (uint32_t)NC;
<> 149:156823d33999 56 }
<> 149:156823d33999 57
AnnaBridge 187:0387e8f68319 58 uint32_t pinmap_find_peripheral(PinName pin, const PinMap *map)
AnnaBridge 187:0387e8f68319 59 {
<> 149:156823d33999 60 while (map->pin != NC) {
AnnaBridge 187:0387e8f68319 61 if (map->pin == pin) {
<> 149:156823d33999 62 return map->peripheral;
AnnaBridge 187:0387e8f68319 63 }
<> 149:156823d33999 64 map++;
<> 149:156823d33999 65 }
<> 149:156823d33999 66 return (uint32_t)NC;
<> 149:156823d33999 67 }
<> 149:156823d33999 68
AnnaBridge 187:0387e8f68319 69 uint32_t pinmap_peripheral(PinName pin, const PinMap *map)
AnnaBridge 187:0387e8f68319 70 {
<> 149:156823d33999 71 uint32_t peripheral = (uint32_t)NC;
<> 149:156823d33999 72
AnnaBridge 187:0387e8f68319 73 if (pin == (PinName)NC) {
<> 149:156823d33999 74 return (uint32_t)NC;
AnnaBridge 187:0387e8f68319 75 }
<> 149:156823d33999 76 peripheral = pinmap_find_peripheral(pin, map);
AnnaBridge 187:0387e8f68319 77 if ((uint32_t)NC == peripheral) { // no mapping available
Anna Bridge 186:707f6e361f3e 78 MBED_ERROR1(MBED_MAKE_ERROR(MBED_MODULE_PLATFORM, MBED_ERROR_CODE_PINMAP_INVALID), "pinmap not found for peripheral", peripheral);
AnnaBridge 187:0387e8f68319 79 }
<> 149:156823d33999 80 return peripheral;
<> 149:156823d33999 81 }
<> 149:156823d33999 82
AnnaBridge 187:0387e8f68319 83 uint32_t pinmap_find_function(PinName pin, const PinMap *map)
AnnaBridge 187:0387e8f68319 84 {
<> 149:156823d33999 85 while (map->pin != NC) {
AnnaBridge 187:0387e8f68319 86 if (map->pin == pin) {
<> 149:156823d33999 87 return map->function;
AnnaBridge 187:0387e8f68319 88 }
<> 149:156823d33999 89 map++;
<> 149:156823d33999 90 }
<> 149:156823d33999 91 return (uint32_t)NC;
<> 149:156823d33999 92 }
<> 149:156823d33999 93
AnnaBridge 187:0387e8f68319 94 uint32_t pinmap_function(PinName pin, const PinMap *map)
AnnaBridge 187:0387e8f68319 95 {
<> 149:156823d33999 96 uint32_t function = (uint32_t)NC;
<> 149:156823d33999 97
AnnaBridge 187:0387e8f68319 98 if (pin == (PinName)NC) {
<> 149:156823d33999 99 return (uint32_t)NC;
AnnaBridge 187:0387e8f68319 100 }
<> 149:156823d33999 101 function = pinmap_find_function(pin, map);
AnnaBridge 187:0387e8f68319 102 if ((uint32_t)NC == function) { // no mapping available
Anna Bridge 186:707f6e361f3e 103 MBED_ERROR1(MBED_MAKE_ERROR(MBED_MODULE_PLATFORM, MBED_ERROR_CODE_PINMAP_INVALID), "pinmap not found for function", function);
AnnaBridge 187:0387e8f68319 104 }
<> 149:156823d33999 105 return function;
<> 149:156823d33999 106 }