Morpheus / mbed-hal

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Dependencies:   target-freescale

common/pinmap_common.c@0:9c59db1fbc9e, 2016-03-23 (annotated)

Committer:
screamer
Date:
Wed Mar 23 21:36:09 2016 +0000
Revision:
0:9c59db1fbc9e
Initial revision

Who changed what in which revision?

UserRevisionLine numberNew contents of line
screamer 0:9c59db1fbc9e 1 /* mbed Microcontroller Library
screamer 0:9c59db1fbc9e 2 * Copyright (c) 2006-2013 ARM Limited
screamer 0:9c59db1fbc9e 3 *
screamer 0:9c59db1fbc9e 4 * Licensed under the Apache License, Version 2.0 (the "License");
screamer 0:9c59db1fbc9e 5 * you may not use this file except in compliance with the License.
screamer 0:9c59db1fbc9e 6 * You may obtain a copy of the License at
screamer 0:9c59db1fbc9e 7 *
screamer 0:9c59db1fbc9e 8 * http://www.apache.org/licenses/LICENSE-2.0
screamer 0:9c59db1fbc9e 9 *
screamer 0:9c59db1fbc9e 10 * Unless required by applicable law or agreed to in writing, software
screamer 0:9c59db1fbc9e 11 * distributed under the License is distributed on an "AS IS" BASIS,
screamer 0:9c59db1fbc9e 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
screamer 0:9c59db1fbc9e 13 * See the License for the specific language governing permissions and
screamer 0:9c59db1fbc9e 14 * limitations under the License.
screamer 0:9c59db1fbc9e 15 */
screamer 0:9c59db1fbc9e 16 #include "pinmap.h"
screamer 0:9c59db1fbc9e 17 #include "mbed_error.h"
screamer 0:9c59db1fbc9e 18
screamer 0:9c59db1fbc9e 19 void pinmap_pinout(PinName pin, const PinMap *map) {
screamer 0:9c59db1fbc9e 20 if (pin == NC)
screamer 0:9c59db1fbc9e 21 return;
screamer 0:9c59db1fbc9e 22
screamer 0:9c59db1fbc9e 23 while (map->pin != NC) {
screamer 0:9c59db1fbc9e 24 if (map->pin == pin) {
screamer 0:9c59db1fbc9e 25 pin_function(pin, map->function);
screamer 0:9c59db1fbc9e 26
screamer 0:9c59db1fbc9e 27 pin_mode(pin, PullNone);
screamer 0:9c59db1fbc9e 28 return;
screamer 0:9c59db1fbc9e 29 }
screamer 0:9c59db1fbc9e 30 map++;
screamer 0:9c59db1fbc9e 31 }
screamer 0:9c59db1fbc9e 32 error("could not pinout");
screamer 0:9c59db1fbc9e 33 }
screamer 0:9c59db1fbc9e 34
screamer 0:9c59db1fbc9e 35 uint32_t pinmap_merge(uint32_t a, uint32_t b) {
screamer 0:9c59db1fbc9e 36 // both are the same (inc both NC)
screamer 0:9c59db1fbc9e 37 if (a == b)
screamer 0:9c59db1fbc9e 38 return a;
screamer 0:9c59db1fbc9e 39
screamer 0:9c59db1fbc9e 40 // one (or both) is not connected
screamer 0:9c59db1fbc9e 41 if (a == (uint32_t)NC)
screamer 0:9c59db1fbc9e 42 return b;
screamer 0:9c59db1fbc9e 43 if (b == (uint32_t)NC)
screamer 0:9c59db1fbc9e 44 return a;
screamer 0:9c59db1fbc9e 45
screamer 0:9c59db1fbc9e 46 // mis-match error case
screamer 0:9c59db1fbc9e 47 error("pinmap mis-match");
screamer 0:9c59db1fbc9e 48 return (uint32_t)NC;
screamer 0:9c59db1fbc9e 49 }
screamer 0:9c59db1fbc9e 50
screamer 0:9c59db1fbc9e 51 uint32_t pinmap_find_peripheral(PinName pin, const PinMap* map) {
screamer 0:9c59db1fbc9e 52 while (map->pin != NC) {
screamer 0:9c59db1fbc9e 53 if (map->pin == pin)
screamer 0:9c59db1fbc9e 54 return map->peripheral;
screamer 0:9c59db1fbc9e 55 map++;
screamer 0:9c59db1fbc9e 56 }
screamer 0:9c59db1fbc9e 57 return (uint32_t)NC;
screamer 0:9c59db1fbc9e 58 }
screamer 0:9c59db1fbc9e 59
screamer 0:9c59db1fbc9e 60 uint32_t pinmap_peripheral(PinName pin, const PinMap* map) {
screamer 0:9c59db1fbc9e 61 uint32_t peripheral = (uint32_t)NC;
screamer 0:9c59db1fbc9e 62
screamer 0:9c59db1fbc9e 63 if (pin == (PinName)NC)
screamer 0:9c59db1fbc9e 64 return (uint32_t)NC;
screamer 0:9c59db1fbc9e 65 peripheral = pinmap_find_peripheral(pin, map);
screamer 0:9c59db1fbc9e 66 if ((uint32_t)NC == peripheral) // no mapping available
screamer 0:9c59db1fbc9e 67 error("pinmap not found for peripheral");
screamer 0:9c59db1fbc9e 68 return peripheral;
screamer 0:9c59db1fbc9e 69 }
screamer 0:9c59db1fbc9e 70
screamer 0:9c59db1fbc9e 71 uint32_t pinmap_find_function(PinName pin, const PinMap* map) {
screamer 0:9c59db1fbc9e 72 while (map->pin != NC) {
screamer 0:9c59db1fbc9e 73 if (map->pin == pin)
screamer 0:9c59db1fbc9e 74 return map->function;
screamer 0:9c59db1fbc9e 75 map++;
screamer 0:9c59db1fbc9e 76 }
screamer 0:9c59db1fbc9e 77 return (uint32_t)NC;
screamer 0:9c59db1fbc9e 78 }
screamer 0:9c59db1fbc9e 79
screamer 0:9c59db1fbc9e 80 uint32_t pinmap_function(PinName pin, const PinMap* map) {
screamer 0:9c59db1fbc9e 81 uint32_t function = (uint32_t)NC;
screamer 0:9c59db1fbc9e 82
screamer 0:9c59db1fbc9e 83 if (pin == (PinName)NC)
screamer 0:9c59db1fbc9e 84 return (uint32_t)NC;
screamer 0:9c59db1fbc9e 85 function = pinmap_find_function(pin, map);
screamer 0:9c59db1fbc9e 86 if ((uint32_t)NC == function) // no mapping available
screamer 0:9c59db1fbc9e 87 error("pinmap not found for function");
screamer 0:9c59db1fbc9e 88 return function;
screamer 0:9c59db1fbc9e 89 }
screamer 0:9c59db1fbc9e 90