lzbp li / mbed-src

mbed library sources

Fork of mbed-src by mbed official

targets/hal/TARGET_RENESAS/TARGET_RZ_A1H/gpio_api.c@390:35c2c1cf29cd, 2014-11-06 (annotated)

Committer:
mbed_official
Date:
Thu Nov 06 11:00:10 2014 +0000
Revision:
390:35c2c1cf29cd
Child:
460:3bcf9be0332c
Synchronized with git revision 8724eb616b6e07a3bd111d3022652eb5bbefe9b7



Full URL: https://github.com/mbedmicro/mbed/commit/8724eb616b6e07a3bd111d3022652eb5bbefe9b7/



[RZ/A1H] mbed-RZ first release

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 390:35c2c1cf29cd 1 /* mbed Microcontroller Library
mbed_official 390:35c2c1cf29cd 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 390:35c2c1cf29cd 3 *
mbed_official 390:35c2c1cf29cd 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 390:35c2c1cf29cd 5 * you may not use this file except in compliance with the License.
mbed_official 390:35c2c1cf29cd 6 * You may obtain a copy of the License at
mbed_official 390:35c2c1cf29cd 7 *
mbed_official 390:35c2c1cf29cd 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 390:35c2c1cf29cd 9 *
mbed_official 390:35c2c1cf29cd 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 390:35c2c1cf29cd 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 390:35c2c1cf29cd 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 390:35c2c1cf29cd 13 * See the License for the specific language governing permissions and
mbed_official 390:35c2c1cf29cd 14 * limitations under the License.
mbed_official 390:35c2c1cf29cd 15 */
mbed_official 390:35c2c1cf29cd 16 #include "gpio_api.h"
mbed_official 390:35c2c1cf29cd 17 #include "pinmap.h"
mbed_official 390:35c2c1cf29cd 18 #include "gpio_addrdefine.h"
mbed_official 390:35c2c1cf29cd 19
mbed_official 390:35c2c1cf29cd 20
mbed_official 390:35c2c1cf29cd 21 uint32_t gpio_set(PinName pin) {
mbed_official 390:35c2c1cf29cd 22 pin_function(pin, 0);
mbed_official 390:35c2c1cf29cd 23 return (1 << PINNO(pin));
mbed_official 390:35c2c1cf29cd 24 }
mbed_official 390:35c2c1cf29cd 25
mbed_official 390:35c2c1cf29cd 26 void gpio_init(gpio_t *obj, PinName pin) {
mbed_official 390:35c2c1cf29cd 27 int group ;
mbed_official 390:35c2c1cf29cd 28 if(pin == NC) return;
mbed_official 390:35c2c1cf29cd 29
mbed_official 390:35c2c1cf29cd 30 obj->pin = pin;
mbed_official 390:35c2c1cf29cd 31 obj->mask = gpio_set(pin);
mbed_official 390:35c2c1cf29cd 32
mbed_official 390:35c2c1cf29cd 33 group = PINGROUP(pin);
mbed_official 390:35c2c1cf29cd 34 if (group > 11) return;
mbed_official 390:35c2c1cf29cd 35
mbed_official 390:35c2c1cf29cd 36 obj->reg_set = (volatile uint32_t *)PORT(group);
mbed_official 390:35c2c1cf29cd 37 obj->reg_in = (volatile uint32_t *) PPR(group);
mbed_official 390:35c2c1cf29cd 38 obj->reg_dir = (volatile uint32_t *) PM(group);
mbed_official 390:35c2c1cf29cd 39 obj->reg_buf = (volatile uint32_t *)PIBC(group);
mbed_official 390:35c2c1cf29cd 40 }
mbed_official 390:35c2c1cf29cd 41
mbed_official 390:35c2c1cf29cd 42 void gpio_mode(gpio_t *obj, PinMode mode) {
mbed_official 390:35c2c1cf29cd 43 // pullup, pulldown, open...etc
mbed_official 390:35c2c1cf29cd 44 }
mbed_official 390:35c2c1cf29cd 45
mbed_official 390:35c2c1cf29cd 46 void gpio_dir(gpio_t *obj, PinDirection direction) {
mbed_official 390:35c2c1cf29cd 47 switch (direction) {
mbed_official 390:35c2c1cf29cd 48 case PIN_INPUT : *obj->reg_dir |= obj->mask;
mbed_official 390:35c2c1cf29cd 49 *obj->reg_buf |= obj->mask; break;
mbed_official 390:35c2c1cf29cd 50 case PIN_OUTPUT: *obj->reg_dir &= ~obj->mask;
mbed_official 390:35c2c1cf29cd 51 *obj->reg_buf &= ~obj->mask; break;
mbed_official 390:35c2c1cf29cd 52 }
mbed_official 390:35c2c1cf29cd 53 }