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_F103RB/port_api.c@70:c1fbde68b492, 2014-01-07 (annotated)

Committer:
mbed_official
Date:
Tue Jan 07 11:00:05 2014 +0000
Revision:
70:c1fbde68b492
Parent:
52:a51c77007319
Child:
76:aeb1df146756
Synchronized with git revision 3f438a307904431f2782db3c8fa49946b9fc1d85



Full URL: https://github.com/mbedmicro/mbed/commit/3f438a307904431f2782db3c8fa49946b9fc1d85/



[NUCLEO_F103RB] license text changed + sleep hal updated

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 52:a51c77007319 1 /* mbed Microcontroller Library
mbed_official 70:c1fbde68b492 2 *******************************************************************************
mbed_official 70:c1fbde68b492 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 70:c1fbde68b492 4 * All rights reserved.
mbed_official 52:a51c77007319 5 *
mbed_official 70:c1fbde68b492 6 * Redistribution and use in source and binary forms, with or without
mbed_official 70:c1fbde68b492 7 * modification, are permitted provided that the following conditions are met:
mbed_official 52:a51c77007319 8 *
mbed_official 70:c1fbde68b492 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 70:c1fbde68b492 10 * this list of conditions and the following disclaimer.
mbed_official 70:c1fbde68b492 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 70:c1fbde68b492 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 70:c1fbde68b492 13 * and/or other materials provided with the distribution.
mbed_official 70:c1fbde68b492 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 70:c1fbde68b492 15 * may be used to endorse or promote products derived from this software
mbed_official 70:c1fbde68b492 16 * without specific prior written permission.
mbed_official 52:a51c77007319 17 *
mbed_official 70:c1fbde68b492 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 70:c1fbde68b492 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 70:c1fbde68b492 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 70:c1fbde68b492 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 70:c1fbde68b492 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 70:c1fbde68b492 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 70:c1fbde68b492 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 70:c1fbde68b492 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 70:c1fbde68b492 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 70:c1fbde68b492 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 70:c1fbde68b492 28 *******************************************************************************
mbed_official 52:a51c77007319 29 */
mbed_official 52:a51c77007319 30 #include "port_api.h"
mbed_official 52:a51c77007319 31 #include "pinmap.h"
mbed_official 52:a51c77007319 32 #include "gpio_api.h"
mbed_official 52:a51c77007319 33
mbed_official 52:a51c77007319 34 #if DEVICE_PORTIN || DEVICE_PORTOUT
mbed_official 52:a51c77007319 35
mbed_official 52:a51c77007319 36 // high nibble = port number (0=A, 1=B, 2=C, 3=D, 4=E, 5=F, ...)
mbed_official 52:a51c77007319 37 // low nibble = pin number
mbed_official 52:a51c77007319 38 PinName port_pin(PortName port, int pin_n) {
mbed_official 52:a51c77007319 39 return (PinName)(pin_n + (port << 4));
mbed_official 52:a51c77007319 40 }
mbed_official 52:a51c77007319 41
mbed_official 52:a51c77007319 42 void port_init(port_t *obj, PortName port, int mask, PinDirection dir) {
mbed_official 52:a51c77007319 43
mbed_official 52:a51c77007319 44 uint32_t port_index = (uint32_t)port; // (0=A, 1=B, 2=C, 3=D, 4=E, 5=F, ...)
mbed_official 52:a51c77007319 45
mbed_official 52:a51c77007319 46 // Enable GPIO clock
mbed_official 52:a51c77007319 47 RCC_APB2PeriphClockCmd((RCC_APB2Periph_GPIOA << port_index), ENABLE);
mbed_official 52:a51c77007319 48
mbed_official 52:a51c77007319 49 // Get GPIO structure base address
mbed_official 52:a51c77007319 50 GPIO_TypeDef *gpio = (GPIO_TypeDef *)(GPIOA_BASE + (port_index << 10));
mbed_official 52:a51c77007319 51
mbed_official 52:a51c77007319 52 // Fill PORT object structure for future use
mbed_official 52:a51c77007319 53 obj->port = port;
mbed_official 52:a51c77007319 54 obj->mask = mask;
mbed_official 52:a51c77007319 55 obj->direction = dir;
mbed_official 52:a51c77007319 56 obj->reg_in = &gpio->IDR;
mbed_official 52:a51c77007319 57 obj->reg_out = &gpio->ODR;
mbed_official 52:a51c77007319 58
mbed_official 52:a51c77007319 59 port_dir(obj, dir);
mbed_official 52:a51c77007319 60 }
mbed_official 52:a51c77007319 61
mbed_official 52:a51c77007319 62 void port_dir(port_t *obj, PinDirection dir) {
mbed_official 52:a51c77007319 63 uint32_t i;
mbed_official 52:a51c77007319 64 obj->direction = dir;
mbed_official 52:a51c77007319 65 for (i = 0; i < 16; i++) { // Process all pins
mbed_official 52:a51c77007319 66 if (obj->mask & (1 << i)) { // If the pin is used
mbed_official 52:a51c77007319 67 if (dir == PIN_OUTPUT) {
mbed_official 52:a51c77007319 68 pin_function(port_pin(obj->port, i), STM_PIN_DATA(GPIO_Mode_Out_PP, 0));
mbed_official 52:a51c77007319 69 }
mbed_official 52:a51c77007319 70 else { // PIN_INPUT
mbed_official 52:a51c77007319 71 pin_function(port_pin(obj->port, i), STM_PIN_DATA(GPIO_Mode_IN_FLOATING, 0));
mbed_official 52:a51c77007319 72 }
mbed_official 52:a51c77007319 73 }
mbed_official 52:a51c77007319 74 }
mbed_official 52:a51c77007319 75 }
mbed_official 52:a51c77007319 76
mbed_official 52:a51c77007319 77 void port_mode(port_t *obj, PinMode mode) {
mbed_official 52:a51c77007319 78 uint32_t i;
mbed_official 52:a51c77007319 79 for (i = 0; i < 16; i++) { // Process all pins
mbed_official 52:a51c77007319 80 if (obj->mask & (1 << i)) { // If the pin is used
mbed_official 52:a51c77007319 81 pin_mode(port_pin(obj->port, i), mode);
mbed_official 52:a51c77007319 82 }
mbed_official 52:a51c77007319 83 }
mbed_official 52:a51c77007319 84 }
mbed_official 52:a51c77007319 85
mbed_official 52:a51c77007319 86 void port_write(port_t *obj, int value) {
mbed_official 52:a51c77007319 87 *obj->reg_out = (*obj->reg_out & ~obj->mask) | (value & obj->mask);
mbed_official 52:a51c77007319 88 }
mbed_official 52:a51c77007319 89
mbed_official 52:a51c77007319 90 int port_read(port_t *obj) {
mbed_official 52:a51c77007319 91 if (obj->direction == PIN_OUTPUT) {
mbed_official 52:a51c77007319 92 return (*obj->reg_out & obj->mask);
mbed_official 52:a51c77007319 93 }
mbed_official 52:a51c77007319 94 else { // PIN_INPUT
mbed_official 52:a51c77007319 95 return (*obj->reg_in & obj->mask);
mbed_official 52:a51c77007319 96 }
mbed_official 52:a51c77007319 97 }
mbed_official 52:a51c77007319 98
mbed_official 52:a51c77007319 99 #endif