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?
User | Revision | Line number | New contents of line |
---|---|---|---|
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 | } |