mbed official / mbed-src

mbed library sources

Dependents:   Encrypted my_mbed lklk CyaSSL_DTLS_Cellular ... more

Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.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_STM/TARGET_DISCO_F051R8/port_api.c@268:402bcc0c870b, 2014-07-29 (annotated)

Committer:
mbed_official
Date:
Tue Jul 29 19:00:07 2014 +0100
Revision:
268:402bcc0c870b
Parent:
251:de9a1e4ffd79
Child:
285:31249416b6f9
Synchronized with git revision 490d1a6606b3138f165c5edf2f2370ca616587c0



Full URL: https://github.com/mbedmicro/mbed/commit/490d1a6606b3138f165c5edf2f2370ca616587c0/



[LPC1114] Sleep fix + some device.h settings

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 130:1dec54e4aec3 1 /* mbed Microcontroller Library
mbed_official 130:1dec54e4aec3 2 *******************************************************************************
mbed_official 130:1dec54e4aec3 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 130:1dec54e4aec3 4 * All rights reserved.
mbed_official 130:1dec54e4aec3 5 *
mbed_official 130:1dec54e4aec3 6 * Redistribution and use in source and binary forms, with or without
mbed_official 130:1dec54e4aec3 7 * modification, are permitted provided that the following conditions are met:
mbed_official 130:1dec54e4aec3 8 *
mbed_official 130:1dec54e4aec3 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 130:1dec54e4aec3 10 * this list of conditions and the following disclaimer.
mbed_official 130:1dec54e4aec3 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 130:1dec54e4aec3 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 130:1dec54e4aec3 13 * and/or other materials provided with the distribution.
mbed_official 130:1dec54e4aec3 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 130:1dec54e4aec3 15 * may be used to endorse or promote products derived from this software
mbed_official 130:1dec54e4aec3 16 * without specific prior written permission.
mbed_official 130:1dec54e4aec3 17 *
mbed_official 130:1dec54e4aec3 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 130:1dec54e4aec3 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 130:1dec54e4aec3 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 130:1dec54e4aec3 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 130:1dec54e4aec3 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 130:1dec54e4aec3 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 130:1dec54e4aec3 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 130:1dec54e4aec3 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 130:1dec54e4aec3 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 130:1dec54e4aec3 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 130:1dec54e4aec3 28 *******************************************************************************
mbed_official 130:1dec54e4aec3 29 */
mbed_official 130:1dec54e4aec3 30 #include "port_api.h"
mbed_official 240:9a7c54113eaf 31
mbed_official 240:9a7c54113eaf 32 #if DEVICE_PORTIN || DEVICE_PORTOUT
mbed_official 240:9a7c54113eaf 33
mbed_official 130:1dec54e4aec3 34 #include "pinmap.h"
mbed_official 130:1dec54e4aec3 35 #include "gpio_api.h"
mbed_official 251:de9a1e4ffd79 36 #include "error.h"
mbed_official 130:1dec54e4aec3 37
mbed_official 130:1dec54e4aec3 38 extern uint32_t Set_GPIO_Clock(uint32_t port_idx);
mbed_official 130:1dec54e4aec3 39
mbed_official 130:1dec54e4aec3 40 // high nibble = port number (0=A, 1=B, 2=C, 3=D, 4=E, 5=F, ...)
mbed_official 130:1dec54e4aec3 41 // low nibble = pin number
mbed_official 130:1dec54e4aec3 42 PinName port_pin(PortName port, int pin_n) {
mbed_official 130:1dec54e4aec3 43 return (PinName)(pin_n + (port << 4));
mbed_official 130:1dec54e4aec3 44 }
mbed_official 130:1dec54e4aec3 45
mbed_official 130:1dec54e4aec3 46 void port_init(port_t *obj, PortName port, int mask, PinDirection dir) {
mbed_official 130:1dec54e4aec3 47 uint32_t port_index = (uint32_t)port;
mbed_official 130:1dec54e4aec3 48
mbed_official 130:1dec54e4aec3 49 // Enable GPIO clock
mbed_official 130:1dec54e4aec3 50 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 130:1dec54e4aec3 51 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 130:1dec54e4aec3 52
mbed_official 130:1dec54e4aec3 53 // Fill PORT object structure for future use
mbed_official 130:1dec54e4aec3 54 obj->port = port;
mbed_official 130:1dec54e4aec3 55 obj->mask = mask;
mbed_official 130:1dec54e4aec3 56 obj->direction = dir;
mbed_official 130:1dec54e4aec3 57 obj->reg_in = &gpio->IDR;
mbed_official 130:1dec54e4aec3 58 obj->reg_out = &gpio->ODR;
mbed_official 130:1dec54e4aec3 59
mbed_official 130:1dec54e4aec3 60 port_dir(obj, dir);
mbed_official 130:1dec54e4aec3 61 }
mbed_official 130:1dec54e4aec3 62
mbed_official 130:1dec54e4aec3 63 void port_dir(port_t *obj, PinDirection dir) {
mbed_official 130:1dec54e4aec3 64 uint32_t i;
mbed_official 130:1dec54e4aec3 65 obj->direction = dir;
mbed_official 130:1dec54e4aec3 66 for (i = 0; i < 16; i++) { // Process all pins
mbed_official 130:1dec54e4aec3 67 if (obj->mask & (1 << i)) { // If the pin is used
mbed_official 130:1dec54e4aec3 68 if (dir == PIN_OUTPUT) {
mbed_official 130:1dec54e4aec3 69 pin_function(port_pin(obj->port, i), STM_PIN_DATA(GPIO_Mode_OUT, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF));
mbed_official 240:9a7c54113eaf 70 } else { // PIN_INPUT
mbed_official 130:1dec54e4aec3 71 pin_function(port_pin(obj->port, i), STM_PIN_DATA(GPIO_Mode_IN, 0, GPIO_PuPd_NOPULL, 0xFF));
mbed_official 130:1dec54e4aec3 72 }
mbed_official 130:1dec54e4aec3 73 }
mbed_official 130:1dec54e4aec3 74 }
mbed_official 130:1dec54e4aec3 75 }
mbed_official 130:1dec54e4aec3 76
mbed_official 130:1dec54e4aec3 77 void port_mode(port_t *obj, PinMode mode) {
mbed_official 130:1dec54e4aec3 78 uint32_t i;
mbed_official 130:1dec54e4aec3 79 for (i = 0; i < 16; i++) { // Process all pins
mbed_official 130:1dec54e4aec3 80 if (obj->mask & (1 << i)) { // If the pin is used
mbed_official 130:1dec54e4aec3 81 pin_mode(port_pin(obj->port, i), mode);
mbed_official 130:1dec54e4aec3 82 }
mbed_official 130:1dec54e4aec3 83 }
mbed_official 130:1dec54e4aec3 84 }
mbed_official 130:1dec54e4aec3 85
mbed_official 130:1dec54e4aec3 86 void port_write(port_t *obj, int value) {
mbed_official 130:1dec54e4aec3 87 *obj->reg_out = (*obj->reg_out & ~obj->mask) | (value & obj->mask);
mbed_official 130:1dec54e4aec3 88 }
mbed_official 130:1dec54e4aec3 89
mbed_official 130:1dec54e4aec3 90 int port_read(port_t *obj) {
mbed_official 130:1dec54e4aec3 91 if (obj->direction == PIN_OUTPUT) {
mbed_official 130:1dec54e4aec3 92 return (*obj->reg_out & obj->mask);
mbed_official 240:9a7c54113eaf 93 } else { // PIN_INPUT
mbed_official 130:1dec54e4aec3 94 return (*obj->reg_in & obj->mask);
mbed_official 130:1dec54e4aec3 95 }
mbed_official 130:1dec54e4aec3 96 }
mbed_official 130:1dec54e4aec3 97
mbed_official 130:1dec54e4aec3 98 #endif