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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.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_F100RB/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 126:549ba18ddd81 1 /* mbed Microcontroller Library
mbed_official 126:549ba18ddd81 2 *******************************************************************************
mbed_official 126:549ba18ddd81 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 126:549ba18ddd81 4 * All rights reserved.
mbed_official 126:549ba18ddd81 5 *
mbed_official 126:549ba18ddd81 6 * Redistribution and use in source and binary forms, with or without
mbed_official 126:549ba18ddd81 7 * modification, are permitted provided that the following conditions are met:
mbed_official 126:549ba18ddd81 8 *
mbed_official 126:549ba18ddd81 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 126:549ba18ddd81 10 * this list of conditions and the following disclaimer.
mbed_official 126:549ba18ddd81 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 126:549ba18ddd81 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 126:549ba18ddd81 13 * and/or other materials provided with the distribution.
mbed_official 126:549ba18ddd81 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 126:549ba18ddd81 15 * may be used to endorse or promote products derived from this software
mbed_official 126:549ba18ddd81 16 * without specific prior written permission.
mbed_official 126:549ba18ddd81 17 *
mbed_official 126:549ba18ddd81 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 126:549ba18ddd81 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 126:549ba18ddd81 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 126:549ba18ddd81 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 126:549ba18ddd81 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 126:549ba18ddd81 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 126:549ba18ddd81 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 126:549ba18ddd81 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 126:549ba18ddd81 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 126:549ba18ddd81 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 126:549ba18ddd81 28 *******************************************************************************
mbed_official 126:549ba18ddd81 29 */
mbed_official 126:549ba18ddd81 30 #include "port_api.h"
mbed_official 126:549ba18ddd81 31 #include "pinmap.h"
mbed_official 126:549ba18ddd81 32 #include "gpio_api.h"
mbed_official 251:de9a1e4ffd79 33 #include "error.h"
mbed_official 126:549ba18ddd81 34
mbed_official 126:549ba18ddd81 35 #if DEVICE_PORTIN || DEVICE_PORTOUT
mbed_official 126:549ba18ddd81 36
mbed_official 126:549ba18ddd81 37 extern uint32_t Set_GPIO_Clock(uint32_t port_idx);
mbed_official 126:549ba18ddd81 38
mbed_official 126:549ba18ddd81 39 // high nibble = port number (0=A, 1=B, 2=C, 3=D, 4=E, 5=F, ...)
mbed_official 126:549ba18ddd81 40 // low nibble = pin number
mbed_official 126:549ba18ddd81 41 PinName port_pin(PortName port, int pin_n) {
mbed_official 126:549ba18ddd81 42 return (PinName)(pin_n + (port << 4));
mbed_official 126:549ba18ddd81 43 }
mbed_official 126:549ba18ddd81 44
mbed_official 126:549ba18ddd81 45 void port_init(port_t *obj, PortName port, int mask, PinDirection dir) {
mbed_official 126:549ba18ddd81 46 uint32_t port_index = (uint32_t)port;
mbed_official 126:549ba18ddd81 47
mbed_official 126:549ba18ddd81 48 // Enable GPIO clock
mbed_official 126:549ba18ddd81 49 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 126:549ba18ddd81 50 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 126:549ba18ddd81 51
mbed_official 126:549ba18ddd81 52 // Fill PORT object structure for future use
mbed_official 126:549ba18ddd81 53 obj->port = port;
mbed_official 126:549ba18ddd81 54 obj->mask = mask;
mbed_official 126:549ba18ddd81 55 obj->direction = dir;
mbed_official 126:549ba18ddd81 56 obj->reg_in = &gpio->IDR;
mbed_official 126:549ba18ddd81 57 obj->reg_out = &gpio->ODR;
mbed_official 126:549ba18ddd81 58
mbed_official 126:549ba18ddd81 59 port_dir(obj, dir);
mbed_official 126:549ba18ddd81 60 }
mbed_official 126:549ba18ddd81 61
mbed_official 126:549ba18ddd81 62 void port_dir(port_t *obj, PinDirection dir) {
mbed_official 126:549ba18ddd81 63 uint32_t i;
mbed_official 126:549ba18ddd81 64 obj->direction = dir;
mbed_official 126:549ba18ddd81 65 for (i = 0; i < 16; i++) { // Process all pins
mbed_official 126:549ba18ddd81 66 if (obj->mask & (1 << i)) { // If the pin is used
mbed_official 126:549ba18ddd81 67 if (dir == PIN_OUTPUT) {
mbed_official 126:549ba18ddd81 68 pin_function(port_pin(obj->port, i), STM_PIN_DATA(GPIO_Mode_Out_PP, 0));
mbed_official 126:549ba18ddd81 69 }
mbed_official 126:549ba18ddd81 70 else { // PIN_INPUT
mbed_official 126:549ba18ddd81 71 pin_function(port_pin(obj->port, i), STM_PIN_DATA(GPIO_Mode_IN_FLOATING, 0));
mbed_official 126:549ba18ddd81 72 }
mbed_official 126:549ba18ddd81 73 }
mbed_official 126:549ba18ddd81 74 }
mbed_official 126:549ba18ddd81 75 }
mbed_official 126:549ba18ddd81 76
mbed_official 126:549ba18ddd81 77 void port_mode(port_t *obj, PinMode mode) {
mbed_official 126:549ba18ddd81 78 uint32_t i;
mbed_official 126:549ba18ddd81 79 for (i = 0; i < 16; i++) { // Process all pins
mbed_official 126:549ba18ddd81 80 if (obj->mask & (1 << i)) { // If the pin is used
mbed_official 126:549ba18ddd81 81 pin_mode(port_pin(obj->port, i), mode);
mbed_official 126:549ba18ddd81 82 }
mbed_official 126:549ba18ddd81 83 }
mbed_official 126:549ba18ddd81 84 }
mbed_official 126:549ba18ddd81 85
mbed_official 126:549ba18ddd81 86 void port_write(port_t *obj, int value) {
mbed_official 126:549ba18ddd81 87 *obj->reg_out = (*obj->reg_out & ~obj->mask) | (value & obj->mask);
mbed_official 126:549ba18ddd81 88 }
mbed_official 126:549ba18ddd81 89
mbed_official 126:549ba18ddd81 90 int port_read(port_t *obj) {
mbed_official 126:549ba18ddd81 91 if (obj->direction == PIN_OUTPUT) {
mbed_official 126:549ba18ddd81 92 return (*obj->reg_out & obj->mask);
mbed_official 126:549ba18ddd81 93 }
mbed_official 126:549ba18ddd81 94 else { // PIN_INPUT
mbed_official 126:549ba18ddd81 95 return (*obj->reg_in & obj->mask);
mbed_official 126:549ba18ddd81 96 }
mbed_official 126:549ba18ddd81 97 }
mbed_official 126:549ba18ddd81 98
mbed_official 126:549ba18ddd81 99 #endif