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polyfractal 2016-12-30 18:23:32 -05:00
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component/common/mbed/targets/hal/rtl8195a/pinmap_common.c Normal file
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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 "basic_types.h"
#include "diag.h"
#include "pinmap.h"
//#include "error.h"
__weak void pinmap_pinout(PinName pin, const PinMap *map) {
#if 0
if (pin == NC)
return;
while (map->pin != NC) {
if (map->pin == pin) {
pin_function(pin, map->function);
pin_mode(pin, PullNone);
return;
}
map++;
}
DBG_GPIO_ERR("%s: could not pinout\n", __FUNCTION__);
#endif
}
__weak 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
DBG_GPIO_ERR("%s: pinmap mis-match\n", __FUNCTION__);
return (uint32_t)NC;
}
__weak uint32_t pinmap_find_peripheral(PinName pin, const PinMap* map) {
while (map->pin != NC) {
if (map->pin == pin)
return map->peripheral;
map++;
}
return (uint32_t)NC;
}
__weak uint32_t pinmap_peripheral(PinName pin, const PinMap* map) {
uint32_t peripheral = (uint32_t)NC;
if (pin == (PinName)NC)
return (uint32_t)NC;
peripheral = pinmap_find_peripheral(pin, map);
if ((uint32_t)NC == peripheral) // no mapping available
DBG_GPIO_ERR("%s: pinmap not found for peripheral\n", __FUNCTION__);
return peripheral;
}