mbed library sources modified for open wear
Dependents: openwear-lifelogger-example
Fork of mbed-src by
Diff: capi/pinmap_common.c
- Revision:
- 0:fd0d7bdfcdc2
- Child:
- 2:143cac498751
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/capi/pinmap_common.c Tue Nov 20 17:24:08 2012 +0000 @@ -0,0 +1,65 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2012 ARM Limited + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include "pinmap.h" +#include "error.h" + +void pinmap_pinout(PinName pin, const PinMap *map) { + if (pin == NC) return; + + while (map->pin != NC) { + if (map->pin == pin) { + pin_function(pin, map->function); + pin_mode(pin, PullNone); + return; + } + map++; + } + error("could not pinout"); +} + +uint32_t pinmap_merge(uint32_t a, uint32_t b) { + // both are the same (inc both NC) + if (a == b) return a; + + // one (or both) is not connected + if (a == (uint32_t)NC) return b; + if (b == (uint32_t)NC) return a; + + // mis-match error case + error("pinmap mis-match"); + return (uint32_t)NC; +} + +uint32_t pinmap_peripheral(PinName pin, const PinMap* map) { + if (pin == (uint32_t)NC) + return (uint32_t)NC; + + while (map->pin != NC) { + if (map->pin == pin) + return map->peripheral; + map++; + } + + // no mapping available + error("pinmap not found for peripheral"); + return (uint32_t)NC; +}