sdk-ameba-v4.0c_180328/component/common/mbed/targets/hal/rtl8711b/pinmap_common.c
2019-04-02 16:34:25 +08:00

78 lines
1.8 KiB
C
Executable file

/* 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"
void pinmap_pinout(PinName pin, const PinMap *map)
{
if (pin == NC)
return;
while (map->pin != NC) {
if (map->pin == pin) {
pin_mode(pin, PullNone);
pin_function(pin, map->function);
return;
}
map++;
}
}
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_8195A("%s: pinmap mis-match\n", __FUNCTION__);
return (uint32_t)NC;
}
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;
}
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_8195A("%s: pinmap not found for peripheral\n", __FUNCTION__);
}
return peripheral;
}