Yihui Xiong / mbed-src-nrf51822

customized mbed library sources for nrf51822

Dependents:   Grove_Node Potentiometer BLE_Beacon I2C_Scanner

common/pinmap_common.c@0:700cadd8b708, 2014-11-04 (annotated)

Committer:
yihui
Date:
Tue Nov 04 07:38:53 2014 +0000
Revision:
0:700cadd8b708
customized mbed-src library for nrf51822

Who changed what in which revision?

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yihui 0:700cadd8b708 1 /* mbed Microcontroller Library
yihui 0:700cadd8b708 2 * Copyright (c) 2006-2013 ARM Limited
yihui 0:700cadd8b708 3 *
yihui 0:700cadd8b708 4 * Licensed under the Apache License, Version 2.0 (the "License");
yihui 0:700cadd8b708 5 * you may not use this file except in compliance with the License.
yihui 0:700cadd8b708 6 * You may obtain a copy of the License at
yihui 0:700cadd8b708 7 *
yihui 0:700cadd8b708 8 * http://www.apache.org/licenses/LICENSE-2.0
yihui 0:700cadd8b708 9 *
yihui 0:700cadd8b708 10 * Unless required by applicable law or agreed to in writing, software
yihui 0:700cadd8b708 11 * distributed under the License is distributed on an "AS IS" BASIS,
yihui 0:700cadd8b708 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
yihui 0:700cadd8b708 13 * See the License for the specific language governing permissions and
yihui 0:700cadd8b708 14 * limitations under the License.
yihui 0:700cadd8b708 15 */
yihui 0:700cadd8b708 16 #include "pinmap.h"
yihui 0:700cadd8b708 17 #include "mbed_error.h"
yihui 0:700cadd8b708 18
yihui 0:700cadd8b708 19 void pinmap_pinout(PinName pin, const PinMap *map) {
yihui 0:700cadd8b708 20 if (pin == NC)
yihui 0:700cadd8b708 21 return;
yihui 0:700cadd8b708 22
yihui 0:700cadd8b708 23 while (map->pin != NC) {
yihui 0:700cadd8b708 24 if (map->pin == pin) {
yihui 0:700cadd8b708 25 pin_function(pin, map->function);
yihui 0:700cadd8b708 26
yihui 0:700cadd8b708 27 pin_mode(pin, PullNone);
yihui 0:700cadd8b708 28 return;
yihui 0:700cadd8b708 29 }
yihui 0:700cadd8b708 30 map++;
yihui 0:700cadd8b708 31 }
yihui 0:700cadd8b708 32 error("could not pinout");
yihui 0:700cadd8b708 33 }
yihui 0:700cadd8b708 34
yihui 0:700cadd8b708 35 uint32_t pinmap_merge(uint32_t a, uint32_t b) {
yihui 0:700cadd8b708 36 // both are the same (inc both NC)
yihui 0:700cadd8b708 37 if (a == b)
yihui 0:700cadd8b708 38 return a;
yihui 0:700cadd8b708 39
yihui 0:700cadd8b708 40 // one (or both) is not connected
yihui 0:700cadd8b708 41 if (a == (uint32_t)NC)
yihui 0:700cadd8b708 42 return b;
yihui 0:700cadd8b708 43 if (b == (uint32_t)NC)
yihui 0:700cadd8b708 44 return a;
yihui 0:700cadd8b708 45
yihui 0:700cadd8b708 46 // mis-match error case
yihui 0:700cadd8b708 47 error("pinmap mis-match");
yihui 0:700cadd8b708 48 return (uint32_t)NC;
yihui 0:700cadd8b708 49 }
yihui 0:700cadd8b708 50
yihui 0:700cadd8b708 51 uint32_t pinmap_find_peripheral(PinName pin, const PinMap* map) {
yihui 0:700cadd8b708 52 while (map->pin != NC) {
yihui 0:700cadd8b708 53 if (map->pin == pin)
yihui 0:700cadd8b708 54 return map->peripheral;
yihui 0:700cadd8b708 55 map++;
yihui 0:700cadd8b708 56 }
yihui 0:700cadd8b708 57 return (uint32_t)NC;
yihui 0:700cadd8b708 58 }
yihui 0:700cadd8b708 59
yihui 0:700cadd8b708 60 uint32_t pinmap_peripheral(PinName pin, const PinMap* map) {
yihui 0:700cadd8b708 61 uint32_t peripheral = (uint32_t)NC;
yihui 0:700cadd8b708 62
yihui 0:700cadd8b708 63 if (pin == (PinName)NC)
yihui 0:700cadd8b708 64 return (uint32_t)NC;
yihui 0:700cadd8b708 65 peripheral = pinmap_find_peripheral(pin, map);
yihui 0:700cadd8b708 66 if ((uint32_t)NC == peripheral) // no mapping available
yihui 0:700cadd8b708 67 error("pinmap not found for peripheral");
yihui 0:700cadd8b708 68 return peripheral;
yihui 0:700cadd8b708 69 }