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/* 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 "mbed_assert.h"
#include "pinmap.h"
#include "mbed_error.h"
void pin_function(PinName pin, int function) {
MBED_ASSERT(pin != (PinName)NC);
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) {
MBED_ASSERT(pin != (PinName)NC);
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;
}
}
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