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mbed library sources

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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 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 }