Aravind Vadali / mbed-src-AV

mbed.h library with any bug fixes AV finds.

Dependents:   micromouse4_encoder_testing PID_Test Lab1_Test WorkingPID ... more

common/pinmap_common.c@0:ba7650f404af, 2015-11-02 (annotated)

Committer:
aravindsv
Date:
Mon Nov 02 02:26:59 2015 +0000
Revision:
0:ba7650f404af
Reduced HSE_STARTUP_TIMEOUT to 500 ms, fixed some compiler warnings

Who changed what in which revision?

UserRevisionLine numberNew contents of line
aravindsv 0:ba7650f404af 1 /* mbed Microcontroller Library
aravindsv 0:ba7650f404af 2 * Copyright (c) 2006-2013 ARM Limited
aravindsv 0:ba7650f404af 3 *
aravindsv 0:ba7650f404af 4 * Licensed under the Apache License, Version 2.0 (the "License");
aravindsv 0:ba7650f404af 5 * you may not use this file except in compliance with the License.
aravindsv 0:ba7650f404af 6 * You may obtain a copy of the License at
aravindsv 0:ba7650f404af 7 *
aravindsv 0:ba7650f404af 8 * http://www.apache.org/licenses/LICENSE-2.0
aravindsv 0:ba7650f404af 9 *
aravindsv 0:ba7650f404af 10 * Unless required by applicable law or agreed to in writing, software
aravindsv 0:ba7650f404af 11 * distributed under the License is distributed on an "AS IS" BASIS,
aravindsv 0:ba7650f404af 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
aravindsv 0:ba7650f404af 13 * See the License for the specific language governing permissions and
aravindsv 0:ba7650f404af 14 * limitations under the License.
aravindsv 0:ba7650f404af 15 */
aravindsv 0:ba7650f404af 16 #include "pinmap.h"
aravindsv 0:ba7650f404af 17 #include "mbed_error.h"
aravindsv 0:ba7650f404af 18
aravindsv 0:ba7650f404af 19 void pinmap_pinout(PinName pin, const PinMap *map) {
aravindsv 0:ba7650f404af 20 if (pin == NC)
aravindsv 0:ba7650f404af 21 return;
aravindsv 0:ba7650f404af 22
aravindsv 0:ba7650f404af 23 while (map->pin != NC) {
aravindsv 0:ba7650f404af 24 if (map->pin == pin) {
aravindsv 0:ba7650f404af 25 pin_function(pin, map->function);
aravindsv 0:ba7650f404af 26
aravindsv 0:ba7650f404af 27 pin_mode(pin, PullNone);
aravindsv 0:ba7650f404af 28 return;
aravindsv 0:ba7650f404af 29 }
aravindsv 0:ba7650f404af 30 map++;
aravindsv 0:ba7650f404af 31 }
aravindsv 0:ba7650f404af 32 error("could not pinout");
aravindsv 0:ba7650f404af 33 }
aravindsv 0:ba7650f404af 34
aravindsv 0:ba7650f404af 35 uint32_t pinmap_merge(uint32_t a, uint32_t b) {
aravindsv 0:ba7650f404af 36 // both are the same (inc both NC)
aravindsv 0:ba7650f404af 37 if (a == b)
aravindsv 0:ba7650f404af 38 return a;
aravindsv 0:ba7650f404af 39
aravindsv 0:ba7650f404af 40 // one (or both) is not connected
aravindsv 0:ba7650f404af 41 if (a == (uint32_t)NC)
aravindsv 0:ba7650f404af 42 return b;
aravindsv 0:ba7650f404af 43 if (b == (uint32_t)NC)
aravindsv 0:ba7650f404af 44 return a;
aravindsv 0:ba7650f404af 45
aravindsv 0:ba7650f404af 46 // mis-match error case
aravindsv 0:ba7650f404af 47 error("pinmap mis-match");
aravindsv 0:ba7650f404af 48 return (uint32_t)NC;
aravindsv 0:ba7650f404af 49 }
aravindsv 0:ba7650f404af 50
aravindsv 0:ba7650f404af 51 uint32_t pinmap_find_peripheral(PinName pin, const PinMap* map) {
aravindsv 0:ba7650f404af 52 while (map->pin != NC) {
aravindsv 0:ba7650f404af 53 if (map->pin == pin)
aravindsv 0:ba7650f404af 54 return map->peripheral;
aravindsv 0:ba7650f404af 55 map++;
aravindsv 0:ba7650f404af 56 }
aravindsv 0:ba7650f404af 57 return (uint32_t)NC;
aravindsv 0:ba7650f404af 58 }
aravindsv 0:ba7650f404af 59
aravindsv 0:ba7650f404af 60 uint32_t pinmap_peripheral(PinName pin, const PinMap* map) {
aravindsv 0:ba7650f404af 61 uint32_t peripheral = (uint32_t)NC;
aravindsv 0:ba7650f404af 62
aravindsv 0:ba7650f404af 63 if (pin == (PinName)NC)
aravindsv 0:ba7650f404af 64 return (uint32_t)NC;
aravindsv 0:ba7650f404af 65 peripheral = pinmap_find_peripheral(pin, map);
aravindsv 0:ba7650f404af 66 if ((uint32_t)NC == peripheral) // no mapping available
aravindsv 0:ba7650f404af 67 error("pinmap not found for peripheral");
aravindsv 0:ba7650f404af 68 return peripheral;
aravindsv 0:ba7650f404af 69 }
aravindsv 0:ba7650f404af 70
aravindsv 0:ba7650f404af 71 uint32_t pinmap_find_function(PinName pin, const PinMap* map) {
aravindsv 0:ba7650f404af 72 while (map->pin != NC) {
aravindsv 0:ba7650f404af 73 if (map->pin == pin)
aravindsv 0:ba7650f404af 74 return map->function;
aravindsv 0:ba7650f404af 75 map++;
aravindsv 0:ba7650f404af 76 }
aravindsv 0:ba7650f404af 77 return (uint32_t)NC;
aravindsv 0:ba7650f404af 78 }
aravindsv 0:ba7650f404af 79
aravindsv 0:ba7650f404af 80 uint32_t pinmap_function(PinName pin, const PinMap* map) {
aravindsv 0:ba7650f404af 81 uint32_t function = (uint32_t)NC;
aravindsv 0:ba7650f404af 82
aravindsv 0:ba7650f404af 83 if (pin == (PinName)NC)
aravindsv 0:ba7650f404af 84 return (uint32_t)NC;
aravindsv 0:ba7650f404af 85 function = pinmap_find_function(pin, map);
aravindsv 0:ba7650f404af 86 if ((uint32_t)NC == function) // no mapping available
aravindsv 0:ba7650f404af 87 error("pinmap not found for function");
aravindsv 0:ba7650f404af 88 return function;
aravindsv 0:ba7650f404af 89 }