Steve Kim / mbed-src

mbed library sources(for async_print)

Dependents:   AsyncPrint

Fork of mbed-src by mbed official

targets/hal/TARGET_ARM_SSG/TARGET_MPS2/port_api.c@580:3c14cb9b87c5, 2015-07-02 (annotated)

Committer:
mbed_official
Date:
Thu Jul 02 16:15:09 2015 +0100
Revision:
580:3c14cb9b87c5
Synchronized with git revision 213caf296f26963a7bea129b8ec4f33bbd1e6588



Full URL: https://github.com/mbedmicro/mbed/commit/213caf296f26963a7bea129b8ec4f33bbd1e6588/



commit of mps2

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 580:3c14cb9b87c5 1 /* mbed Microcontroller Library
mbed_official 580:3c14cb9b87c5 2 * Copyright (c) 2006-2015 ARM Limited
mbed_official 580:3c14cb9b87c5 3 *
mbed_official 580:3c14cb9b87c5 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 580:3c14cb9b87c5 5 * you may not use this file except in compliance with the License.
mbed_official 580:3c14cb9b87c5 6 * You may obtain a copy of the License at
mbed_official 580:3c14cb9b87c5 7 *
mbed_official 580:3c14cb9b87c5 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 580:3c14cb9b87c5 9 *
mbed_official 580:3c14cb9b87c5 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 580:3c14cb9b87c5 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 580:3c14cb9b87c5 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 580:3c14cb9b87c5 13 * See the License for the specific language governing permissions and
mbed_official 580:3c14cb9b87c5 14 * limitations under the License.
mbed_official 580:3c14cb9b87c5 15 */
mbed_official 580:3c14cb9b87c5 16 #include "port_api.h"
mbed_official 580:3c14cb9b87c5 17 #include "pinmap.h"
mbed_official 580:3c14cb9b87c5 18 #include "gpio_api.h"
mbed_official 580:3c14cb9b87c5 19
mbed_official 580:3c14cb9b87c5 20 PinName port_pin(PortName port, int pin_n) {
mbed_official 580:3c14cb9b87c5 21 return (PinName)((port << PORT_SHIFT) | pin_n);
mbed_official 580:3c14cb9b87c5 22 }
mbed_official 580:3c14cb9b87c5 23
mbed_official 580:3c14cb9b87c5 24 void port_init(port_t *obj, PortName port, int mask, PinDirection dir) {
mbed_official 580:3c14cb9b87c5 25 obj->port = port;
mbed_official 580:3c14cb9b87c5 26 obj->mask = mask;
mbed_official 580:3c14cb9b87c5 27
mbed_official 580:3c14cb9b87c5 28 CMSDK_GPIO_TypeDef *port_reg = (CMSDK_GPIO_TypeDef *)(CMSDK_GPIO0_BASE + ((int)port * 0x10));
mbed_official 580:3c14cb9b87c5 29
mbed_official 580:3c14cb9b87c5 30 obj->reg_in = &port_reg->DATAOUT;
mbed_official 580:3c14cb9b87c5 31 obj->reg_dir = &port_reg->OUTENABLESET;
mbed_official 580:3c14cb9b87c5 32 obj->reg_dirclr = &port_reg->OUTENABLECLR;
mbed_official 580:3c14cb9b87c5 33
mbed_official 580:3c14cb9b87c5 34 uint32_t i;
mbed_official 580:3c14cb9b87c5 35 // The function is set per pin: reuse gpio logic
mbed_official 580:3c14cb9b87c5 36 for (i=0; i<16; i++) {
mbed_official 580:3c14cb9b87c5 37 if (obj->mask & (1<<i)) {
mbed_official 580:3c14cb9b87c5 38 gpio_set(port_pin(obj->port, i));
mbed_official 580:3c14cb9b87c5 39 }
mbed_official 580:3c14cb9b87c5 40 }
mbed_official 580:3c14cb9b87c5 41
mbed_official 580:3c14cb9b87c5 42 port_dir(obj, dir);
mbed_official 580:3c14cb9b87c5 43 }
mbed_official 580:3c14cb9b87c5 44
mbed_official 580:3c14cb9b87c5 45 void port_mode(port_t *obj, PinMode mode) {
mbed_official 580:3c14cb9b87c5 46 uint32_t i;
mbed_official 580:3c14cb9b87c5 47 // The mode is set per pin: reuse pinmap logic
mbed_official 580:3c14cb9b87c5 48 for (i=0; i<32; i++) {
mbed_official 580:3c14cb9b87c5 49 if (obj->mask & (1<<i)) {
mbed_official 580:3c14cb9b87c5 50 pin_mode(port_pin(obj->port, i), mode);
mbed_official 580:3c14cb9b87c5 51 }
mbed_official 580:3c14cb9b87c5 52 }
mbed_official 580:3c14cb9b87c5 53 }
mbed_official 580:3c14cb9b87c5 54
mbed_official 580:3c14cb9b87c5 55 void port_dir(port_t *obj, PinDirection dir) {
mbed_official 580:3c14cb9b87c5 56 switch (dir) {
mbed_official 580:3c14cb9b87c5 57 case PIN_INPUT : *obj->reg_dir &= ~obj->mask; break;
mbed_official 580:3c14cb9b87c5 58 case PIN_OUTPUT: *obj->reg_dir |= obj->mask; break;
mbed_official 580:3c14cb9b87c5 59 }
mbed_official 580:3c14cb9b87c5 60 }
mbed_official 580:3c14cb9b87c5 61
mbed_official 580:3c14cb9b87c5 62 void port_write(port_t *obj, int value) {
mbed_official 580:3c14cb9b87c5 63 *obj->reg_in = value;
mbed_official 580:3c14cb9b87c5 64 }
mbed_official 580:3c14cb9b87c5 65
mbed_official 580:3c14cb9b87c5 66 int port_read(port_t *obj) {
mbed_official 580:3c14cb9b87c5 67 return (*obj->reg_in);
mbed_official 580:3c14cb9b87c5 68 }