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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.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_NUCLEO_F334R8/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 237:f3da66175598 1 /* mbed Microcontroller Library
mbed_official 237:f3da66175598 2 *******************************************************************************
mbed_official 237:f3da66175598 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 237:f3da66175598 4 * All rights reserved.
mbed_official 237:f3da66175598 5 *
mbed_official 237:f3da66175598 6 * Redistribution and use in source and binary forms, with or without
mbed_official 237:f3da66175598 7 * modification, are permitted provided that the following conditions are met:
mbed_official 237:f3da66175598 8 *
mbed_official 237:f3da66175598 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 237:f3da66175598 10 * this list of conditions and the following disclaimer.
mbed_official 237:f3da66175598 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 237:f3da66175598 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 237:f3da66175598 13 * and/or other materials provided with the distribution.
mbed_official 237:f3da66175598 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 237:f3da66175598 15 * may be used to endorse or promote products derived from this software
mbed_official 237:f3da66175598 16 * without specific prior written permission.
mbed_official 237:f3da66175598 17 *
mbed_official 237:f3da66175598 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 237:f3da66175598 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 237:f3da66175598 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 237:f3da66175598 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 237:f3da66175598 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 237:f3da66175598 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 237:f3da66175598 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 237:f3da66175598 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 237:f3da66175598 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 237:f3da66175598 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 237:f3da66175598 28 *******************************************************************************
mbed_official 237:f3da66175598 29 */
mbed_official 237:f3da66175598 30 #include "port_api.h"
mbed_official 237:f3da66175598 31 #include "pinmap.h"
mbed_official 237:f3da66175598 32 #include "gpio_api.h"
mbed_official 251:de9a1e4ffd79 33 #include "error.h"
mbed_official 237:f3da66175598 34
mbed_official 237:f3da66175598 35 #if DEVICE_PORTIN || DEVICE_PORTOUT
mbed_official 237:f3da66175598 36
mbed_official 237:f3da66175598 37 extern uint32_t Set_GPIO_Clock(uint32_t port_idx);
mbed_official 237:f3da66175598 38
mbed_official 237:f3da66175598 39 // high nibble = port number (0=A, 1=B, 2=C, 3=D, 4=E, 5=F, ...)
mbed_official 237:f3da66175598 40 // low nibble = pin number
mbed_official 237:f3da66175598 41 PinName port_pin(PortName port, int pin_n)
mbed_official 237:f3da66175598 42 {
mbed_official 237:f3da66175598 43 return (PinName)(pin_n + (port << 4));
mbed_official 237:f3da66175598 44 }
mbed_official 237:f3da66175598 45
mbed_official 237:f3da66175598 46 void port_init(port_t *obj, PortName port, int mask, PinDirection dir)
mbed_official 237:f3da66175598 47 {
mbed_official 237:f3da66175598 48 uint32_t port_index = (uint32_t)port;
mbed_official 237:f3da66175598 49
mbed_official 237:f3da66175598 50 // Enable GPIO clock
mbed_official 237:f3da66175598 51 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 237:f3da66175598 52 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 237:f3da66175598 53
mbed_official 237:f3da66175598 54 // Fill PORT object structure for future use
mbed_official 237:f3da66175598 55 obj->port = port;
mbed_official 237:f3da66175598 56 obj->mask = mask;
mbed_official 237:f3da66175598 57 obj->direction = dir;
mbed_official 237:f3da66175598 58 obj->reg_in = &gpio->IDR;
mbed_official 237:f3da66175598 59 obj->reg_out = &gpio->ODR;
mbed_official 237:f3da66175598 60
mbed_official 237:f3da66175598 61 port_dir(obj, dir);
mbed_official 237:f3da66175598 62 }
mbed_official 237:f3da66175598 63
mbed_official 237:f3da66175598 64 void port_dir(port_t *obj, PinDirection dir)
mbed_official 237:f3da66175598 65 {
mbed_official 237:f3da66175598 66 uint32_t i;
mbed_official 237:f3da66175598 67 obj->direction = dir;
mbed_official 237:f3da66175598 68 for (i = 0; i < 16; i++) { // Process all pins
mbed_official 237:f3da66175598 69 if (obj->mask & (1 << i)) { // If the pin is used
mbed_official 237:f3da66175598 70 if (dir == PIN_OUTPUT) {
mbed_official 237:f3da66175598 71 pin_function(port_pin(obj->port, i), STM_PIN_DATA(STM_MODE_OUTPUT_PP, GPIO_NOPULL, 0));
mbed_official 237:f3da66175598 72 } else { // PIN_INPUT
mbed_official 237:f3da66175598 73 pin_function(port_pin(obj->port, i), STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 237:f3da66175598 74 }
mbed_official 237:f3da66175598 75 }
mbed_official 237:f3da66175598 76 }
mbed_official 237:f3da66175598 77 }
mbed_official 237:f3da66175598 78
mbed_official 237:f3da66175598 79 void port_mode(port_t *obj, PinMode mode)
mbed_official 237:f3da66175598 80 {
mbed_official 237:f3da66175598 81 uint32_t i;
mbed_official 237:f3da66175598 82 for (i = 0; i < 16; i++) { // Process all pins
mbed_official 237:f3da66175598 83 if (obj->mask & (1 << i)) { // If the pin is used
mbed_official 237:f3da66175598 84 pin_mode(port_pin(obj->port, i), mode);
mbed_official 237:f3da66175598 85 }
mbed_official 237:f3da66175598 86 }
mbed_official 237:f3da66175598 87 }
mbed_official 237:f3da66175598 88
mbed_official 237:f3da66175598 89 void port_write(port_t *obj, int value)
mbed_official 237:f3da66175598 90 {
mbed_official 237:f3da66175598 91 *obj->reg_out = (*obj->reg_out & ~obj->mask) | (value & obj->mask);
mbed_official 237:f3da66175598 92 }
mbed_official 237:f3da66175598 93
mbed_official 237:f3da66175598 94 int port_read(port_t *obj)
mbed_official 237:f3da66175598 95 {
mbed_official 237:f3da66175598 96 if (obj->direction == PIN_OUTPUT) {
mbed_official 237:f3da66175598 97 return (*obj->reg_out & obj->mask);
mbed_official 237:f3da66175598 98 } else { // PIN_INPUT
mbed_official 237:f3da66175598 99 return (*obj->reg_in & obj->mask);
mbed_official 237:f3da66175598 100 }
mbed_official 237:f3da66175598 101 }
mbed_official 237:f3da66175598 102
mbed_official 237:f3da66175598 103 #endif