mbed library sources for GR-PEACH rev.B.
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Diff: common/pinmap_common.c
- Revision:
- 9:0ce32e54c9a7
- Parent:
- 2:143cac498751
- Child:
- 10:3bc89ef62ce7
diff -r 4e25b8576136 -r 0ce32e54c9a7 common/pinmap_common.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/common/pinmap_common.c Mon Jun 10 16:03:00 2013 +0100 @@ -0,0 +1,59 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2013 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#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; +}