david dicarlo / mbed-src-FLL48

mbed library sources: Modified to operate FRDM-KL25Z at 48MHz from internal 32kHz oscillator (nothing else changed).

Fork of mbed-src by mbed official

The only file that changed is: mbed-src-FLL48/targets/cmsis/TARGET_Freescale/TARGET_KL25Z/system_MKL25Z4.h

targets/hal/TARGET_Freescale/TARGET_KL05Z/gpio_api.c@20:4263a77256ae, 2013-09-10 (annotated)

Committer:
bogdanm
Date:
Tue Sep 10 15:14:19 2013 +0300
Revision:
20:4263a77256ae
Sync with git revision 171dda705c947bf910926a0b73d6a4797802554d

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 20:4263a77256ae 1 /* mbed Microcontroller Library
bogdanm 20:4263a77256ae 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 20:4263a77256ae 3 *
bogdanm 20:4263a77256ae 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 20:4263a77256ae 5 * you may not use this file except in compliance with the License.
bogdanm 20:4263a77256ae 6 * You may obtain a copy of the License at
bogdanm 20:4263a77256ae 7 *
bogdanm 20:4263a77256ae 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 20:4263a77256ae 9 *
bogdanm 20:4263a77256ae 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 20:4263a77256ae 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 20:4263a77256ae 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 20:4263a77256ae 13 * See the License for the specific language governing permissions and
bogdanm 20:4263a77256ae 14 * limitations under the License.
bogdanm 20:4263a77256ae 15 */
bogdanm 20:4263a77256ae 16 #include "gpio_api.h"
bogdanm 20:4263a77256ae 17 #include "pinmap.h"
bogdanm 20:4263a77256ae 18
bogdanm 20:4263a77256ae 19 uint32_t gpio_set(PinName pin) {
bogdanm 20:4263a77256ae 20 pin_function(pin, 1);
bogdanm 20:4263a77256ae 21 return 1 << ((pin & 0x7F) >> 2); // 1 << pin number
bogdanm 20:4263a77256ae 22 }
bogdanm 20:4263a77256ae 23
bogdanm 20:4263a77256ae 24 void gpio_init(gpio_t *obj, PinName pin, PinDirection direction) {
bogdanm 20:4263a77256ae 25 if (pin == (uint32_t)NC) {
bogdanm 20:4263a77256ae 26 return;
bogdanm 20:4263a77256ae 27 }
bogdanm 20:4263a77256ae 28
bogdanm 20:4263a77256ae 29 obj->pin = pin;
bogdanm 20:4263a77256ae 30 obj->mask = gpio_set(pin);
bogdanm 20:4263a77256ae 31
bogdanm 20:4263a77256ae 32 uint32_t port = (uint32_t)pin >> PORT_SHIFT;
bogdanm 20:4263a77256ae 33
bogdanm 20:4263a77256ae 34 FGPIO_Type *reg = (FGPIO_Type *)(FPTA_BASE + port * 0x40);
bogdanm 20:4263a77256ae 35 obj->reg_set = &reg->PSOR;
bogdanm 20:4263a77256ae 36 obj->reg_clr = &reg->PCOR;
bogdanm 20:4263a77256ae 37 obj->reg_in = &reg->PDIR;
bogdanm 20:4263a77256ae 38 obj->reg_dir = &reg->PDDR;
bogdanm 20:4263a77256ae 39
bogdanm 20:4263a77256ae 40 gpio_dir(obj, direction);
bogdanm 20:4263a77256ae 41 switch (direction) {
bogdanm 20:4263a77256ae 42 case PIN_OUTPUT:
bogdanm 20:4263a77256ae 43 pin_mode(pin, PullNone);
bogdanm 20:4263a77256ae 44 break;
bogdanm 20:4263a77256ae 45 case PIN_INPUT :
bogdanm 20:4263a77256ae 46 pin_mode(pin, PullUp); //down not avail
bogdanm 20:4263a77256ae 47 break;
bogdanm 20:4263a77256ae 48 }
bogdanm 20:4263a77256ae 49 }
bogdanm 20:4263a77256ae 50
bogdanm 20:4263a77256ae 51 void gpio_mode(gpio_t *obj, PinMode mode) {
bogdanm 20:4263a77256ae 52 pin_mode(obj->pin, mode);
bogdanm 20:4263a77256ae 53 }
bogdanm 20:4263a77256ae 54
bogdanm 20:4263a77256ae 55 void gpio_dir(gpio_t *obj, PinDirection direction) {
bogdanm 20:4263a77256ae 56 switch (direction) {
bogdanm 20:4263a77256ae 57 case PIN_INPUT :
bogdanm 20:4263a77256ae 58 *obj->reg_dir &= ~obj->mask;
bogdanm 20:4263a77256ae 59 break;
bogdanm 20:4263a77256ae 60 case PIN_OUTPUT:
bogdanm 20:4263a77256ae 61 *obj->reg_dir |= obj->mask;
bogdanm 20:4263a77256ae 62 break;
bogdanm 20:4263a77256ae 63 }
bogdanm 20:4263a77256ae 64 }