mbed library sources
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Diff: targets/hal/TARGET_NXP/TARGET_LPC176X/pinmap.c
- Revision:
- 223:d98d59aec21a
- Parent:
- 222:96162ccfbf43
--- a/targets/hal/TARGET_NXP/TARGET_LPC176X/pinmap.c Fri Jun 06 11:00:08 2014 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,48 +0,0 @@ -/* 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 pin_function(PinName pin, int function) { - if (pin == (PinName)NC) return; - - uint32_t pin_number = (uint32_t)pin - (uint32_t)P0_0; - int index = pin_number >> 4; - int offset = (pin_number & 0xF) << 1; - - PINCONARRAY->PINSEL[index] &= ~(0x3 << offset); - PINCONARRAY->PINSEL[index] |= function << offset; -} - -void pin_mode(PinName pin, PinMode mode) { - if (pin == (PinName)NC) { return; } - - uint32_t pin_number = (uint32_t)pin - (uint32_t)P0_0; - int index = pin_number >> 5; - int offset = pin_number & 0x1F; - uint32_t drain = ((uint32_t) mode & (uint32_t) OpenDrain) >> 2; - - PINCONARRAY->PINMODE_OD[index] &= ~(drain << offset); - PINCONARRAY->PINMODE_OD[index] |= drain << offset; - - if (!drain) { - index = pin_number >> 4; - offset = (pin_number & 0xF) << 1; - - PINCONARRAY->PINMODE[index] &= ~(0x3 << offset); - PINCONARRAY->PINMODE[index] |= (uint32_t)mode << offset; - } -}