mirror of https://github.com/ARMmbed/mbed-os.git
84 lines
2.6 KiB
C
84 lines
2.6 KiB
C
/* mbed Microcontroller Library
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* Copyright (c) 2006-2013 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* Orion specific header files */
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#include "pad.h"
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/* MBED header files */
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#include "pinmap.h"
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void pin_function(PinName pin, int function)
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{
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/** - Enable the clock for PAD peripheral device */
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CLOCK_ENABLE(CLOCK_CROSSB);
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/* Note: GPIO 0,1,2,3 are used for UART 1, GPIO 8,9 are used for UART 2 */
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CrossbReg_pt crossBar = (CrossbReg_t *)(CROSSBREG_BASE + (pin * CROSS_REG_ADRS_BYTE_SIZE));
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crossBar->DIOCTRL0 = function;
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/** - Disable the clock for PAD peripheral device */
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CLOCK_DISABLE(CLOCK_CROSSB);
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}
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void pin_mode(PinName pin, PinMode mode)
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{
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/** - Get PAD IO register address for the PAD number */
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PadReg_t *padRegOffset = (PadReg_t*)(PADREG_BASE + (pin * PAD_REG_ADRS_BYTE_SIZE));
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/** - Enable the clock for PAD peripheral device */
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CLOCK_ENABLE(CLOCK_PAD);
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switch (mode) {
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case PushPullPullDown:
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padRegOffset->PADIO0.BITS.TYPE = PAD_OUTCFG_PUSHPULL;
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padRegOffset->PADIO0.BITS.PULL = PAD_PULL_DOWN;
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break;
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case PushPullNoPull:
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padRegOffset->PADIO0.BITS.TYPE = PAD_OUTCFG_PUSHPULL;
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padRegOffset->PADIO0.BITS.PULL = PAD_PULL_NONE;
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break;
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case PushPullPullUp:
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padRegOffset->PADIO0.BITS.TYPE = PAD_OUTCFG_PUSHPULL;
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padRegOffset->PADIO0.BITS.PULL = PAD_PULL_UP;
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break;
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case OpenDrainPullDown:
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padRegOffset->PADIO0.BITS.TYPE = PAD_OOUTCFG_OPENDRAIN;
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padRegOffset->PADIO0.BITS.PULL = PAD_PULL_DOWN;
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break;
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case OpenDrainNoPull:
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padRegOffset->PADIO0.BITS.TYPE = PAD_OOUTCFG_OPENDRAIN;
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padRegOffset->PADIO0.BITS.PULL = PAD_PULL_NONE;
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break;
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case OpenDrainPullUp:
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padRegOffset->PADIO0.BITS.TYPE = PAD_OOUTCFG_OPENDRAIN;
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padRegOffset->PADIO0.BITS.PULL = PAD_PULL_UP;
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break;
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default:
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break;
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}
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/** - Disable the clock for PAD peripheral device */
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CLOCK_DISABLE(CLOCK_PAD);
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}
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