EL4121 Embedded System / mbed-os

mbed-os

Dependents:   cobaLCDJoyMotor_Thread odometry_omni_3roda_v3 odometry_omni_3roda_v1 odometry_omni_3roda_v2 ... more

hal/mbed_pinmap_common.c@0:b74591d5ab33, 2017-12-11 (annotated)

Committer:
be_bryan
Date:
Mon Dec 11 17:54:04 2017 +0000
Revision:
0:b74591d5ab33
motor ++

Who changed what in which revision?

UserRevisionLine numberNew contents of line
be_bryan 0:b74591d5ab33 1 /* mbed Microcontroller Library
be_bryan 0:b74591d5ab33 2 * Copyright (c) 2006-2013 ARM Limited
be_bryan 0:b74591d5ab33 3 *
be_bryan 0:b74591d5ab33 4 * Licensed under the Apache License, Version 2.0 (the "License");
be_bryan 0:b74591d5ab33 5 * you may not use this file except in compliance with the License.
be_bryan 0:b74591d5ab33 6 * You may obtain a copy of the License at
be_bryan 0:b74591d5ab33 7 *
be_bryan 0:b74591d5ab33 8 * http://www.apache.org/licenses/LICENSE-2.0
be_bryan 0:b74591d5ab33 9 *
be_bryan 0:b74591d5ab33 10 * Unless required by applicable law or agreed to in writing, software
be_bryan 0:b74591d5ab33 11 * distributed under the License is distributed on an "AS IS" BASIS,
be_bryan 0:b74591d5ab33 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
be_bryan 0:b74591d5ab33 13 * See the License for the specific language governing permissions and
be_bryan 0:b74591d5ab33 14 * limitations under the License.
be_bryan 0:b74591d5ab33 15 */
be_bryan 0:b74591d5ab33 16 #include "hal/pinmap.h"
be_bryan 0:b74591d5ab33 17 #include "platform/mbed_error.h"
be_bryan 0:b74591d5ab33 18
be_bryan 0:b74591d5ab33 19 void pinmap_pinout(PinName pin, const PinMap *map) {
be_bryan 0:b74591d5ab33 20 if (pin == NC)
be_bryan 0:b74591d5ab33 21 return;
be_bryan 0:b74591d5ab33 22
be_bryan 0:b74591d5ab33 23 while (map->pin != NC) {
be_bryan 0:b74591d5ab33 24 if (map->pin == pin) {
be_bryan 0:b74591d5ab33 25 pin_function(pin, map->function);
be_bryan 0:b74591d5ab33 26
be_bryan 0:b74591d5ab33 27 pin_mode(pin, PullNone);
be_bryan 0:b74591d5ab33 28 return;
be_bryan 0:b74591d5ab33 29 }
be_bryan 0:b74591d5ab33 30 map++;
be_bryan 0:b74591d5ab33 31 }
be_bryan 0:b74591d5ab33 32 error("could not pinout");
be_bryan 0:b74591d5ab33 33 }
be_bryan 0:b74591d5ab33 34
be_bryan 0:b74591d5ab33 35 uint32_t pinmap_merge(uint32_t a, uint32_t b) {
be_bryan 0:b74591d5ab33 36 // both are the same (inc both NC)
be_bryan 0:b74591d5ab33 37 if (a == b)
be_bryan 0:b74591d5ab33 38 return a;
be_bryan 0:b74591d5ab33 39
be_bryan 0:b74591d5ab33 40 // one (or both) is not connected
be_bryan 0:b74591d5ab33 41 if (a == (uint32_t)NC)
be_bryan 0:b74591d5ab33 42 return b;
be_bryan 0:b74591d5ab33 43 if (b == (uint32_t)NC)
be_bryan 0:b74591d5ab33 44 return a;
be_bryan 0:b74591d5ab33 45
be_bryan 0:b74591d5ab33 46 // mis-match error case
be_bryan 0:b74591d5ab33 47 error("pinmap mis-match");
be_bryan 0:b74591d5ab33 48 return (uint32_t)NC;
be_bryan 0:b74591d5ab33 49 }
be_bryan 0:b74591d5ab33 50
be_bryan 0:b74591d5ab33 51 uint32_t pinmap_find_peripheral(PinName pin, const PinMap* map) {
be_bryan 0:b74591d5ab33 52 while (map->pin != NC) {
be_bryan 0:b74591d5ab33 53 if (map->pin == pin)
be_bryan 0:b74591d5ab33 54 return map->peripheral;
be_bryan 0:b74591d5ab33 55 map++;
be_bryan 0:b74591d5ab33 56 }
be_bryan 0:b74591d5ab33 57 return (uint32_t)NC;
be_bryan 0:b74591d5ab33 58 }
be_bryan 0:b74591d5ab33 59
be_bryan 0:b74591d5ab33 60 uint32_t pinmap_peripheral(PinName pin, const PinMap* map) {
be_bryan 0:b74591d5ab33 61 uint32_t peripheral = (uint32_t)NC;
be_bryan 0:b74591d5ab33 62
be_bryan 0:b74591d5ab33 63 if (pin == (PinName)NC)
be_bryan 0:b74591d5ab33 64 return (uint32_t)NC;
be_bryan 0:b74591d5ab33 65 peripheral = pinmap_find_peripheral(pin, map);
be_bryan 0:b74591d5ab33 66 if ((uint32_t)NC == peripheral) // no mapping available
be_bryan 0:b74591d5ab33 67 error("pinmap not found for peripheral");
be_bryan 0:b74591d5ab33 68 return peripheral;
be_bryan 0:b74591d5ab33 69 }
be_bryan 0:b74591d5ab33 70
be_bryan 0:b74591d5ab33 71 uint32_t pinmap_find_function(PinName pin, const PinMap* map) {
be_bryan 0:b74591d5ab33 72 while (map->pin != NC) {
be_bryan 0:b74591d5ab33 73 if (map->pin == pin)
be_bryan 0:b74591d5ab33 74 return map->function;
be_bryan 0:b74591d5ab33 75 map++;
be_bryan 0:b74591d5ab33 76 }
be_bryan 0:b74591d5ab33 77 return (uint32_t)NC;
be_bryan 0:b74591d5ab33 78 }
be_bryan 0:b74591d5ab33 79
be_bryan 0:b74591d5ab33 80 uint32_t pinmap_function(PinName pin, const PinMap* map) {
be_bryan 0:b74591d5ab33 81 uint32_t function = (uint32_t)NC;
be_bryan 0:b74591d5ab33 82
be_bryan 0:b74591d5ab33 83 if (pin == (PinName)NC)
be_bryan 0:b74591d5ab33 84 return (uint32_t)NC;
be_bryan 0:b74591d5ab33 85 function = pinmap_find_function(pin, map);
be_bryan 0:b74591d5ab33 86 if ((uint32_t)NC == function) // no mapping available
be_bryan 0:b74591d5ab33 87 error("pinmap not found for function");
be_bryan 0:b74591d5ab33 88 return function;
be_bryan 0:b74591d5ab33 89 }