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mbed SDK library sources

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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_NXP/TARGET_LPC11XX_11CXX/port_api.c@30:91c1d09ada54, 2013-09-25 (annotated)

Committer:
mbed_official
Date:
Wed Sep 25 10:30:04 2013 +0100
Revision:
30:91c1d09ada54
Synchronized with git revision 8f57c1e84759991fa81ede0da2b4aabe8530fa09

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 30:91c1d09ada54 1 /* mbed Microcontroller Library
mbed_official 30:91c1d09ada54 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 30:91c1d09ada54 3 *
mbed_official 30:91c1d09ada54 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 30:91c1d09ada54 5 * you may not use this file except in compliance with the License.
mbed_official 30:91c1d09ada54 6 * You may obtain a copy of the License at
mbed_official 30:91c1d09ada54 7 *
mbed_official 30:91c1d09ada54 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 30:91c1d09ada54 9 *
mbed_official 30:91c1d09ada54 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 30:91c1d09ada54 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 30:91c1d09ada54 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 30:91c1d09ada54 13 * See the License for the specific language governing permissions and
mbed_official 30:91c1d09ada54 14 * limitations under the License.
mbed_official 30:91c1d09ada54 15 */
mbed_official 30:91c1d09ada54 16
mbed_official 30:91c1d09ada54 17 #include "port_api.h"
mbed_official 30:91c1d09ada54 18 #include "pinmap.h"
mbed_official 30:91c1d09ada54 19 #include "gpio_api.h"
mbed_official 30:91c1d09ada54 20
mbed_official 30:91c1d09ada54 21 // LPC114 IOCON offset table [port][pin]
mbed_official 30:91c1d09ada54 22
mbed_official 30:91c1d09ada54 23 static uint8_t iocon_offset[4][12] = {
mbed_official 30:91c1d09ada54 24 {0x0c,0x10,0x1c,0x2c,0x30,0x34,0x4c,0x50,0x60,0x64,0x68,0x74}, // PORT 0
mbed_official 30:91c1d09ada54 25 {0x78,0x7c,0x80,0x90,0x94,0xa0,0xa4,0xa8,0x14,0x38,0x6c,0x98}, // PORT 1
mbed_official 30:91c1d09ada54 26 {0x08,0x28,0x5c,0x8c,0x40,0x44,0x00,0x20,0x24,0x54,0x58,0x70}, // PORT 2
mbed_official 30:91c1d09ada54 27 {0x84,0x88,0x9c,0xac,0x3c,0x48} // PORT 3
mbed_official 30:91c1d09ada54 28 };
mbed_official 30:91c1d09ada54 29
mbed_official 30:91c1d09ada54 30 PinName port_pin(PortName port, int pin) {
mbed_official 30:91c1d09ada54 31 return (PinName)((port << PORT_SHIFT) | (pin << PIN_SHIFT) | (uint32_t)iocon_offset[port][pin]);
mbed_official 30:91c1d09ada54 32 }
mbed_official 30:91c1d09ada54 33
mbed_official 30:91c1d09ada54 34 void port_init(port_t *obj, PortName port, int mask, PinDirection dir) {
mbed_official 30:91c1d09ada54 35 obj->port = port;
mbed_official 30:91c1d09ada54 36 obj->mask = mask;
mbed_official 30:91c1d09ada54 37
mbed_official 30:91c1d09ada54 38 LPC_GPIO_TypeDef *port_reg = ((LPC_GPIO_TypeDef *) (LPC_GPIO0_BASE + (port * 0x10000)));
mbed_official 30:91c1d09ada54 39
mbed_official 30:91c1d09ada54 40 obj->reg_data = &port_reg->DATA;
mbed_official 30:91c1d09ada54 41 obj->reg_dir = &port_reg->DIR;
mbed_official 30:91c1d09ada54 42
mbed_official 30:91c1d09ada54 43 uint32_t i;
mbed_official 30:91c1d09ada54 44 // The function is set per pin: reuse gpio logic
mbed_official 30:91c1d09ada54 45 for (i=0; i<12; i++) {
mbed_official 30:91c1d09ada54 46 if (obj->mask & (1<<i)) {
mbed_official 30:91c1d09ada54 47 gpio_set(port_pin(obj->port, i));
mbed_official 30:91c1d09ada54 48 }
mbed_official 30:91c1d09ada54 49 }
mbed_official 30:91c1d09ada54 50
mbed_official 30:91c1d09ada54 51 port_dir(obj, dir);
mbed_official 30:91c1d09ada54 52 }
mbed_official 30:91c1d09ada54 53
mbed_official 30:91c1d09ada54 54 void port_mode(port_t *obj, PinMode mode) {
mbed_official 30:91c1d09ada54 55 uint32_t i;
mbed_official 30:91c1d09ada54 56 // The mode is set per pin: reuse pinmap logic
mbed_official 30:91c1d09ada54 57 for (i=0; i<12; i++) {
mbed_official 30:91c1d09ada54 58 if (obj->mask & (1<<i)) {
mbed_official 30:91c1d09ada54 59 pin_mode(port_pin(obj->port, i), mode);
mbed_official 30:91c1d09ada54 60 }
mbed_official 30:91c1d09ada54 61 }
mbed_official 30:91c1d09ada54 62 }
mbed_official 30:91c1d09ada54 63
mbed_official 30:91c1d09ada54 64 void port_dir(port_t *obj, PinDirection dir) {
mbed_official 30:91c1d09ada54 65 switch (dir) {
mbed_official 30:91c1d09ada54 66 case PIN_INPUT : *obj->reg_dir &= ~obj->mask; break;
mbed_official 30:91c1d09ada54 67 case PIN_OUTPUT: *obj->reg_dir |= obj->mask; break;
mbed_official 30:91c1d09ada54 68 }
mbed_official 30:91c1d09ada54 69 }
mbed_official 30:91c1d09ada54 70
mbed_official 30:91c1d09ada54 71 void port_write(port_t *obj, int value) {
mbed_official 30:91c1d09ada54 72 *obj->reg_data = (value & obj->mask);
mbed_official 30:91c1d09ada54 73 }
mbed_official 30:91c1d09ada54 74
mbed_official 30:91c1d09ada54 75 int port_read(port_t *obj) {
mbed_official 30:91c1d09ada54 76 return (*obj->reg_data & obj->mask);
mbed_official 30:91c1d09ada54 77 }
mbed_official 30:91c1d09ada54 78