+++ /dev/null
-/* 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"
-
-#define LPC_IOCON0_BASE (LPC_IOCON_BASE)
-#define LPC_IOCON1_BASE (LPC_IOCON_BASE + 0x60)
-
-void pin_function(PinName pin, int function) {
- MBED_ASSERT(pin != (PinName)NC);
- if (pin == (PinName)NC) return;
-
- uint32_t pin_number = (uint32_t)pin;
-
- __IO uint32_t *reg = (pin_number < 32) ?
- (__IO uint32_t*)(LPC_IOCON0_BASE + 4 * pin_number) :
- (__IO uint32_t*)(LPC_IOCON1_BASE + 4 * (pin_number - 32));
-
- // pin function bits: [2:0] -> 111 = (0x7)
- *reg = (*reg & ~0x7) | (function & 0x7);
-}
-
-void pin_mode(PinName pin, PinMode mode) {
- MBED_ASSERT(pin != (PinName)NC);
- uint32_t pin_number = (uint32_t)pin;
- uint32_t drain = ((uint32_t) mode & (uint32_t) OpenDrain) >> 2;
-
- __IO uint32_t *reg = (pin_number < 32) ?
- (__IO uint32_t*)(LPC_IOCON0_BASE + 4 * pin_number) :
- (__IO uint32_t*)(LPC_IOCON1_BASE + 4 * (pin_number - 32));
- uint32_t tmp = *reg;
-
- // pin mode bits: [4:3] -> 11000 = (0x3 << 3)
- tmp &= ~(0x3 << 3);
- tmp |= (mode & 0x3) << 3;
-
- // drain
- tmp &= ~(0x1 << 10);
- tmp |= drain << 10;
-
- *reg = tmp;
-}