Greg Steiert / maxim_dev

Dependents:   sensomed

hal/mbed_pinmap_common.c@0:0e018d759a2a, 2016-11-08 (annotated)

Committer:
switches
Date:
Tue Nov 08 18:27:11 2016 +0000
Revision:
0:0e018d759a2a
Initial commit

Who changed what in which revision?

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switches 0:0e018d759a2a 1 /* mbed Microcontroller Library
switches 0:0e018d759a2a 2 * Copyright (c) 2006-2013 ARM Limited
switches 0:0e018d759a2a 3 *
switches 0:0e018d759a2a 4 * Licensed under the Apache License, Version 2.0 (the "License");
switches 0:0e018d759a2a 5 * you may not use this file except in compliance with the License.
switches 0:0e018d759a2a 6 * You may obtain a copy of the License at
switches 0:0e018d759a2a 7 *
switches 0:0e018d759a2a 8 * http://www.apache.org/licenses/LICENSE-2.0
switches 0:0e018d759a2a 9 *
switches 0:0e018d759a2a 10 * Unless required by applicable law or agreed to in writing, software
switches 0:0e018d759a2a 11 * distributed under the License is distributed on an "AS IS" BASIS,
switches 0:0e018d759a2a 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
switches 0:0e018d759a2a 13 * See the License for the specific language governing permissions and
switches 0:0e018d759a2a 14 * limitations under the License.
switches 0:0e018d759a2a 15 */
switches 0:0e018d759a2a 16 #include "hal/pinmap.h"
switches 0:0e018d759a2a 17 #include "platform/mbed_error.h"
switches 0:0e018d759a2a 18
switches 0:0e018d759a2a 19 void pinmap_pinout(PinName pin, const PinMap *map) {
switches 0:0e018d759a2a 20 if (pin == NC)
switches 0:0e018d759a2a 21 return;
switches 0:0e018d759a2a 22
switches 0:0e018d759a2a 23 while (map->pin != NC) {
switches 0:0e018d759a2a 24 if (map->pin == pin) {
switches 0:0e018d759a2a 25 pin_function(pin, map->function);
switches 0:0e018d759a2a 26
switches 0:0e018d759a2a 27 pin_mode(pin, PullNone);
switches 0:0e018d759a2a 28 return;
switches 0:0e018d759a2a 29 }
switches 0:0e018d759a2a 30 map++;
switches 0:0e018d759a2a 31 }
switches 0:0e018d759a2a 32 error("could not pinout");
switches 0:0e018d759a2a 33 }
switches 0:0e018d759a2a 34
switches 0:0e018d759a2a 35 uint32_t pinmap_merge(uint32_t a, uint32_t b) {
switches 0:0e018d759a2a 36 // both are the same (inc both NC)
switches 0:0e018d759a2a 37 if (a == b)
switches 0:0e018d759a2a 38 return a;
switches 0:0e018d759a2a 39
switches 0:0e018d759a2a 40 // one (or both) is not connected
switches 0:0e018d759a2a 41 if (a == (uint32_t)NC)
switches 0:0e018d759a2a 42 return b;
switches 0:0e018d759a2a 43 if (b == (uint32_t)NC)
switches 0:0e018d759a2a 44 return a;
switches 0:0e018d759a2a 45
switches 0:0e018d759a2a 46 // mis-match error case
switches 0:0e018d759a2a 47 error("pinmap mis-match");
switches 0:0e018d759a2a 48 return (uint32_t)NC;
switches 0:0e018d759a2a 49 }
switches 0:0e018d759a2a 50
switches 0:0e018d759a2a 51 uint32_t pinmap_find_peripheral(PinName pin, const PinMap* map) {
switches 0:0e018d759a2a 52 while (map->pin != NC) {
switches 0:0e018d759a2a 53 if (map->pin == pin)
switches 0:0e018d759a2a 54 return map->peripheral;
switches 0:0e018d759a2a 55 map++;
switches 0:0e018d759a2a 56 }
switches 0:0e018d759a2a 57 return (uint32_t)NC;
switches 0:0e018d759a2a 58 }
switches 0:0e018d759a2a 59
switches 0:0e018d759a2a 60 uint32_t pinmap_peripheral(PinName pin, const PinMap* map) {
switches 0:0e018d759a2a 61 uint32_t peripheral = (uint32_t)NC;
switches 0:0e018d759a2a 62
switches 0:0e018d759a2a 63 if (pin == (PinName)NC)
switches 0:0e018d759a2a 64 return (uint32_t)NC;
switches 0:0e018d759a2a 65 peripheral = pinmap_find_peripheral(pin, map);
switches 0:0e018d759a2a 66 if ((uint32_t)NC == peripheral) // no mapping available
switches 0:0e018d759a2a 67 error("pinmap not found for peripheral");
switches 0:0e018d759a2a 68 return peripheral;
switches 0:0e018d759a2a 69 }
switches 0:0e018d759a2a 70
switches 0:0e018d759a2a 71 uint32_t pinmap_find_function(PinName pin, const PinMap* map) {
switches 0:0e018d759a2a 72 while (map->pin != NC) {
switches 0:0e018d759a2a 73 if (map->pin == pin)
switches 0:0e018d759a2a 74 return map->function;
switches 0:0e018d759a2a 75 map++;
switches 0:0e018d759a2a 76 }
switches 0:0e018d759a2a 77 return (uint32_t)NC;
switches 0:0e018d759a2a 78 }
switches 0:0e018d759a2a 79
switches 0:0e018d759a2a 80 uint32_t pinmap_function(PinName pin, const PinMap* map) {
switches 0:0e018d759a2a 81 uint32_t function = (uint32_t)NC;
switches 0:0e018d759a2a 82
switches 0:0e018d759a2a 83 if (pin == (PinName)NC)
switches 0:0e018d759a2a 84 return (uint32_t)NC;
switches 0:0e018d759a2a 85 function = pinmap_find_function(pin, map);
switches 0:0e018d759a2a 86 if ((uint32_t)NC == function) // no mapping available
switches 0:0e018d759a2a 87 error("pinmap not found for function");
switches 0:0e018d759a2a 88 return function;
switches 0:0e018d759a2a 89 }