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If you are looking for a stable and tested release, please import one of the official mbed library releases:
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Last commit 20 Feb 2019 by 
mbed official
targets/hal/TARGET_STM/TARGET_NUCLEO_F072RB/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:
- 219:993c9b0acbcc
- 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?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| mbed_official | 219:993c9b0acbcc | 1 | /* mbed Microcontroller Library |
| mbed_official | 219:993c9b0acbcc | 2 | ******************************************************************************* |
| mbed_official | 219:993c9b0acbcc | 3 | * Copyright (c) 2014, STMicroelectronics |
| mbed_official | 219:993c9b0acbcc | 4 | * All rights reserved. |
| mbed_official | 219:993c9b0acbcc | 5 | * |
| mbed_official | 219:993c9b0acbcc | 6 | * Redistribution and use in source and binary forms, with or without |
| mbed_official | 219:993c9b0acbcc | 7 | * modification, are permitted provided that the following conditions are met: |
| mbed_official | 219:993c9b0acbcc | 8 | * |
| mbed_official | 219:993c9b0acbcc | 9 | * 1. Redistributions of source code must retain the above copyright notice, |
| mbed_official | 219:993c9b0acbcc | 10 | * this list of conditions and the following disclaimer. |
| mbed_official | 219:993c9b0acbcc | 11 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| mbed_official | 219:993c9b0acbcc | 12 | * this list of conditions and the following disclaimer in the documentation |
| mbed_official | 219:993c9b0acbcc | 13 | * and/or other materials provided with the distribution. |
| mbed_official | 219:993c9b0acbcc | 14 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
| mbed_official | 219:993c9b0acbcc | 15 | * may be used to endorse or promote products derived from this software |
| mbed_official | 219:993c9b0acbcc | 16 | * without specific prior written permission. |
| mbed_official | 219:993c9b0acbcc | 17 | * |
| mbed_official | 219:993c9b0acbcc | 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| mbed_official | 219:993c9b0acbcc | 19 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| mbed_official | 219:993c9b0acbcc | 20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| mbed_official | 219:993c9b0acbcc | 21 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| mbed_official | 219:993c9b0acbcc | 22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| mbed_official | 219:993c9b0acbcc | 23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| mbed_official | 219:993c9b0acbcc | 24 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| mbed_official | 219:993c9b0acbcc | 25 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| mbed_official | 219:993c9b0acbcc | 26 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| mbed_official | 219:993c9b0acbcc | 27 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| mbed_official | 219:993c9b0acbcc | 28 | ******************************************************************************* |
| mbed_official | 219:993c9b0acbcc | 29 | */ |
| mbed_official | 219:993c9b0acbcc | 30 | #include "port_api.h" |
| mbed_official | 219:993c9b0acbcc | 31 | #include "pinmap.h" |
| mbed_official | 219:993c9b0acbcc | 32 | #include "gpio_api.h" |
| mbed_official | 250:a49055e7a707 | 33 | #include "mbed_error.h" |
| mbed_official | 219:993c9b0acbcc | 34 | |
| mbed_official | 219:993c9b0acbcc | 35 | #if DEVICE_PORTIN || DEVICE_PORTOUT |
| mbed_official | 219:993c9b0acbcc | 36 | |
| mbed_official | 219:993c9b0acbcc | 37 | extern uint32_t Set_GPIO_Clock(uint32_t port_idx); |
| mbed_official | 219:993c9b0acbcc | 38 | |
| mbed_official | 219:993c9b0acbcc | 39 | // high nibble = port number (0=A, 1=B, 2=C, 3=D, 4=E, 5=F, ...) |
| mbed_official | 219:993c9b0acbcc | 40 | // low nibble = pin number |
| mbed_official | 219:993c9b0acbcc | 41 | PinName port_pin(PortName port, int pin_n) { |
| mbed_official | 219:993c9b0acbcc | 42 | return (PinName)(pin_n + (port << 4)); |
| mbed_official | 219:993c9b0acbcc | 43 | } |
| mbed_official | 219:993c9b0acbcc | 44 | |
| mbed_official | 219:993c9b0acbcc | 45 | void port_init(port_t *obj, PortName port, int mask, PinDirection dir) { |
| mbed_official | 219:993c9b0acbcc | 46 | uint32_t port_index = (uint32_t)port; |
| mbed_official | 219:993c9b0acbcc | 47 | |
| mbed_official | 219:993c9b0acbcc | 48 | // Enable GPIO clock |
| mbed_official | 219:993c9b0acbcc | 49 | uint32_t gpio_add = Set_GPIO_Clock(port_index); |
| mbed_official | 219:993c9b0acbcc | 50 | GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add; |
| mbed_official | 219:993c9b0acbcc | 51 | |
| mbed_official | 219:993c9b0acbcc | 52 | // Fill PORT object structure for future use |
| mbed_official | 219:993c9b0acbcc | 53 | obj->port = port; |
| mbed_official | 219:993c9b0acbcc | 54 | obj->mask = mask; |
| mbed_official | 219:993c9b0acbcc | 55 | obj->direction = dir; |
| mbed_official | 219:993c9b0acbcc | 56 | obj->reg_in = &gpio->IDR; |
| mbed_official | 219:993c9b0acbcc | 57 | obj->reg_out = &gpio->ODR; |
| mbed_official | 219:993c9b0acbcc | 58 | |
| mbed_official | 219:993c9b0acbcc | 59 | port_dir(obj, dir); |
| mbed_official | 219:993c9b0acbcc | 60 | } |
| mbed_official | 219:993c9b0acbcc | 61 | |
| mbed_official | 219:993c9b0acbcc | 62 | void port_dir(port_t *obj, PinDirection dir) { |
| mbed_official | 219:993c9b0acbcc | 63 | uint32_t i; |
| mbed_official | 219:993c9b0acbcc | 64 | obj->direction = dir; |
| mbed_official | 219:993c9b0acbcc | 65 | for (i = 0; i < 16; i++) { // Process all pins |
| mbed_official | 219:993c9b0acbcc | 66 | if (obj->mask & (1 << i)) { // If the pin is used |
| mbed_official | 219:993c9b0acbcc | 67 | if (dir == PIN_OUTPUT) { |
| mbed_official | 219:993c9b0acbcc | 68 | pin_function(port_pin(obj->port, i), STM_PIN_DATA(STM_MODE_OUTPUT_PP, GPIO_NOPULL, 0)); |
| mbed_official | 219:993c9b0acbcc | 69 | } else { // PIN_INPUT |
| mbed_official | 219:993c9b0acbcc | 70 | pin_function(port_pin(obj->port, i), STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); |
| mbed_official | 219:993c9b0acbcc | 71 | } |
| mbed_official | 219:993c9b0acbcc | 72 | } |
| mbed_official | 219:993c9b0acbcc | 73 | } |
| mbed_official | 219:993c9b0acbcc | 74 | } |
| mbed_official | 219:993c9b0acbcc | 75 | |
| mbed_official | 219:993c9b0acbcc | 76 | void port_mode(port_t *obj, PinMode mode) { |
| mbed_official | 219:993c9b0acbcc | 77 | uint32_t i; |
| mbed_official | 219:993c9b0acbcc | 78 | for (i = 0; i < 16; i++) { // Process all pins |
| mbed_official | 219:993c9b0acbcc | 79 | if (obj->mask & (1 << i)) { // If the pin is used |
| mbed_official | 219:993c9b0acbcc | 80 | pin_mode(port_pin(obj->port, i), mode); |
| mbed_official | 219:993c9b0acbcc | 81 | } |
| mbed_official | 219:993c9b0acbcc | 82 | } |
| mbed_official | 219:993c9b0acbcc | 83 | } |
| mbed_official | 219:993c9b0acbcc | 84 | |
| mbed_official | 219:993c9b0acbcc | 85 | void port_write(port_t *obj, int value) { |
| mbed_official | 219:993c9b0acbcc | 86 | *obj->reg_out = (*obj->reg_out & ~obj->mask) | (value & obj->mask); |
| mbed_official | 219:993c9b0acbcc | 87 | } |
| mbed_official | 219:993c9b0acbcc | 88 | |
| mbed_official | 219:993c9b0acbcc | 89 | int port_read(port_t *obj) { |
| mbed_official | 219:993c9b0acbcc | 90 | if (obj->direction == PIN_OUTPUT) { |
| mbed_official | 219:993c9b0acbcc | 91 | return (*obj->reg_out & obj->mask); |
| mbed_official | 219:993c9b0acbcc | 92 | } else { // PIN_INPUT |
| mbed_official | 219:993c9b0acbcc | 93 | return (*obj->reg_in & obj->mask); |
| mbed_official | 219:993c9b0acbcc | 94 | } |
| mbed_official | 219:993c9b0acbcc | 95 | } |
| mbed_official | 219:993c9b0acbcc | 96 | |
| mbed_official | 219:993c9b0acbcc | 97 | #endif |
