Geremia G / mbed-src

- fix F411 F334 systeminit when HSI used - portinout always read IDR regardless of port direction

Fork of mbed-src by mbed official

targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/port_api.c@250:a49055e7a707, 2014-07-08 (annotated)

Committer:
mbed_official
Date:
Tue Jul 08 11:15:08 2014 +0100
Revision:
250:a49055e7a707
Parent:
170:bfbcaf535cca
Child:
251:de9a1e4ffd79
Synchronized with git revision 3197042b65f8d28e856e1a7812d45e2fbe80e3f1



Full URL: https://github.com/mbedmicro/mbed/commit/3197042b65f8d28e856e1a7812d45e2fbe80e3f1/



error.h -> mbed_error.h

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 125:23cc3068a9e4 1 /* mbed Microcontroller Library
mbed_official 125:23cc3068a9e4 2 *******************************************************************************
mbed_official 125:23cc3068a9e4 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 125:23cc3068a9e4 4 * All rights reserved.
mbed_official 125:23cc3068a9e4 5 *
mbed_official 125:23cc3068a9e4 6 * Redistribution and use in source and binary forms, with or without
mbed_official 125:23cc3068a9e4 7 * modification, are permitted provided that the following conditions are met:
mbed_official 125:23cc3068a9e4 8 *
mbed_official 125:23cc3068a9e4 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 125:23cc3068a9e4 10 * this list of conditions and the following disclaimer.
mbed_official 125:23cc3068a9e4 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 125:23cc3068a9e4 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 125:23cc3068a9e4 13 * and/or other materials provided with the distribution.
mbed_official 125:23cc3068a9e4 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 125:23cc3068a9e4 15 * may be used to endorse or promote products derived from this software
mbed_official 125:23cc3068a9e4 16 * without specific prior written permission.
mbed_official 125:23cc3068a9e4 17 *
mbed_official 125:23cc3068a9e4 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 125:23cc3068a9e4 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 125:23cc3068a9e4 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 125:23cc3068a9e4 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 125:23cc3068a9e4 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 125:23cc3068a9e4 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 125:23cc3068a9e4 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 125:23cc3068a9e4 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 125:23cc3068a9e4 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 125:23cc3068a9e4 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 125:23cc3068a9e4 28 *******************************************************************************
mbed_official 125:23cc3068a9e4 29 */
mbed_official 125:23cc3068a9e4 30 #include "port_api.h"
mbed_official 170:bfbcaf535cca 31
mbed_official 170:bfbcaf535cca 32 #if DEVICE_PORTIN || DEVICE_PORTOUT
mbed_official 170:bfbcaf535cca 33
mbed_official 125:23cc3068a9e4 34 #include "pinmap.h"
mbed_official 125:23cc3068a9e4 35 #include "gpio_api.h"
mbed_official 250:a49055e7a707 36 #include "mbed_error.h"
mbed_official 125:23cc3068a9e4 37
mbed_official 125:23cc3068a9e4 38 extern uint32_t Set_GPIO_Clock(uint32_t port_idx);
mbed_official 125:23cc3068a9e4 39
mbed_official 125:23cc3068a9e4 40 // high nibble = port number (0=A, 1=B, 2=C, 3=D, 4=E, 5=F, ...)
mbed_official 125:23cc3068a9e4 41 // low nibble = pin number
mbed_official 125:23cc3068a9e4 42 PinName port_pin(PortName port, int pin_n) {
mbed_official 135:067cc8ba23da 43 return (PinName)(pin_n + (port << 4));
mbed_official 125:23cc3068a9e4 44 }
mbed_official 125:23cc3068a9e4 45
mbed_official 125:23cc3068a9e4 46 void port_init(port_t *obj, PortName port, int mask, PinDirection dir) {
mbed_official 125:23cc3068a9e4 47 uint32_t port_index = (uint32_t)port;
mbed_official 125:23cc3068a9e4 48
mbed_official 125:23cc3068a9e4 49 // Enable GPIO clock
mbed_official 125:23cc3068a9e4 50 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 125:23cc3068a9e4 51 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 125:23cc3068a9e4 52
mbed_official 125:23cc3068a9e4 53 // Fill PORT object structure for future use
mbed_official 125:23cc3068a9e4 54 obj->port = port;
mbed_official 125:23cc3068a9e4 55 obj->mask = mask;
mbed_official 135:067cc8ba23da 56 obj->direction = dir;
mbed_official 125:23cc3068a9e4 57 obj->reg_in = &gpio->IDR;
mbed_official 135:067cc8ba23da 58 obj->reg_out = &gpio->ODR;
mbed_official 125:23cc3068a9e4 59
mbed_official 125:23cc3068a9e4 60 port_dir(obj, dir);
mbed_official 125:23cc3068a9e4 61 }
mbed_official 125:23cc3068a9e4 62
mbed_official 125:23cc3068a9e4 63 void port_dir(port_t *obj, PinDirection dir) {
mbed_official 125:23cc3068a9e4 64 uint32_t i;
mbed_official 125:23cc3068a9e4 65 obj->direction = dir;
mbed_official 125:23cc3068a9e4 66 for (i = 0; i < 16; i++) { // Process all pins
mbed_official 125:23cc3068a9e4 67 if (obj->mask & (1 << i)) { // If the pin is used
mbed_official 125:23cc3068a9e4 68 if (dir == PIN_OUTPUT) {
mbed_official 125:23cc3068a9e4 69 pin_function(port_pin(obj->port, i), STM_PIN_DATA(GPIO_Mode_OUT, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF));
mbed_official 135:067cc8ba23da 70 } else { // PIN_INPUT
mbed_official 125:23cc3068a9e4 71 pin_function(port_pin(obj->port, i), STM_PIN_DATA(GPIO_Mode_IN, 0, GPIO_PuPd_NOPULL, 0xFF));
mbed_official 125:23cc3068a9e4 72 }
mbed_official 125:23cc3068a9e4 73 }
mbed_official 135:067cc8ba23da 74 }
mbed_official 125:23cc3068a9e4 75 }
mbed_official 125:23cc3068a9e4 76
mbed_official 125:23cc3068a9e4 77 void port_mode(port_t *obj, PinMode mode) {
mbed_official 135:067cc8ba23da 78 uint32_t i;
mbed_official 125:23cc3068a9e4 79 for (i = 0; i < 16; i++) { // Process all pins
mbed_official 125:23cc3068a9e4 80 if (obj->mask & (1 << i)) { // If the pin is used
mbed_official 125:23cc3068a9e4 81 pin_mode(port_pin(obj->port, i), mode);
mbed_official 125:23cc3068a9e4 82 }
mbed_official 125:23cc3068a9e4 83 }
mbed_official 125:23cc3068a9e4 84 }
mbed_official 125:23cc3068a9e4 85
mbed_official 125:23cc3068a9e4 86 void port_write(port_t *obj, int value) {
mbed_official 125:23cc3068a9e4 87 *obj->reg_out = (*obj->reg_out & ~obj->mask) | (value & obj->mask);
mbed_official 125:23cc3068a9e4 88 }
mbed_official 125:23cc3068a9e4 89
mbed_official 125:23cc3068a9e4 90 int port_read(port_t *obj) {
mbed_official 125:23cc3068a9e4 91 if (obj->direction == PIN_OUTPUT) {
mbed_official 125:23cc3068a9e4 92 return (*obj->reg_out & obj->mask);
mbed_official 135:067cc8ba23da 93 } else { // PIN_INPUT
mbed_official 125:23cc3068a9e4 94 return (*obj->reg_in & obj->mask);
mbed_official 125:23cc3068a9e4 95 }
mbed_official 125:23cc3068a9e4 96 }
mbed_official 125:23cc3068a9e4 97
mbed_official 125:23cc3068a9e4 98 #endif