tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/pinmap.c

   1 /* mbed Microcontroller Library
   2  * Copyright (c) 2006-2013 ARM Limited
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 #include "mbed_assert.h"
  17 #include "pinmap.h"
  18 #include "mbed_error.h"
  19 #include "fsl_clock_manager.h"
  20 #include "fsl_port_hal.h"
  21
  22 void pin_function(PinName pin, int function) {
  23     MBED_ASSERT(pin != (PinName)NC);
  24     CLOCK_SYS_EnablePortClock(pin >> GPIO_PORT_SHIFT);
  25     uint32_t port_addrs[] = PORT_BASE_ADDRS;
  26     PORT_HAL_SetMuxMode(port_addrs[pin >> GPIO_PORT_SHIFT], pin & 0xFF, (port_mux_t)function);
  27 }
  28
  29 void pin_mode(PinName pin, PinMode mode) {
  30     MBED_ASSERT(pin != (PinName)NC);
  31     uint32_t instance = pin >> GPIO_PORT_SHIFT;
  32     uint32_t port_addrs[] = PORT_BASE_ADDRS;
  33     uint32_t pinName = pin & 0xFF;
  34
  35     switch (mode) {
  36         case PullNone:
  37             PORT_HAL_SetPullCmd(port_addrs[instance], pinName, false);
  38             PORT_HAL_SetPullMode(port_addrs[instance], pinName, kPortPullDown);
  39             break;
  40         case PullDown:
  41             PORT_HAL_SetPullCmd(port_addrs[instance], pinName, true);
  42             PORT_HAL_SetPullMode(port_addrs[instance], pinName, kPortPullDown);
  43             break;
  44         case PullUp:
  45             PORT_HAL_SetPullCmd(port_addrs[instance], pinName, true);
  46             PORT_HAL_SetPullMode(port_addrs[instance], pinName, kPortPullUp);
  47             break;
  48         default:
  49             break;
  50     }
  51 }