Paparazzi UAS  v5.15_devel-81-gd13dafb
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gpio_arch.c
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1 /*
2  * Copyright (C) 2013 AggieAir, A Remote Sensing Unmanned Aerial System for Scientific Applications
3  * Utah State University, http://aggieair.usu.edu/
4  *
5  * Michal Podhradsky (michal.podhradsky@aggiemail.usu.edu)
6  * Calvin Coopmans (c.r.coopmans@ieee.org)
7  *
8  *
9  * This file is part of paparazzi.
10  *
11  * paparazzi is free software; you can redistribute it and/or modify
12  * it under the terms of the GNU General Public License as published by
13  * the Free Software Foundation; either version 2, or (at your option)
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15  *
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19  * GNU General Public License for more details.
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25  */
30 #include "mcu_periph/gpio.h"
31 #include "hal.h"
32 
33 void gpio_setup_output(ioportid_t port, uint16_t gpios)
34 {
35  chSysLock();
36  palSetPadMode(port, gpios, PAL_MODE_OUTPUT_PUSHPULL);
37  chSysUnlock();
38 }
39 
40 void gpio_setup_input(ioportid_t port, uint16_t gpios)
41 {
42  chSysLock();
43  palSetPadMode(port, gpios, PAL_MODE_INPUT);
44  chSysUnlock();
45 }
46 
47 void gpio_setup_input_pullup(ioportid_t port, uint16_t gpios)
48 {
49  chSysLock();
50  palSetPadMode(port, gpios, PAL_MODE_INPUT_PULLUP);
51  chSysUnlock();
52 }
53 
54 void gpio_setup_input_pulldown(ioportid_t port, uint16_t gpios)
55 {
56  chSysLock();
57  palSetPadMode(port, gpios, PAL_MODE_INPUT_PULLDOWN);
58  chSysUnlock();
59 }
60 
61 void gpio_setup_pin_af(ioportid_t port, uint16_t pin, uint8_t af, bool is_output)
62 {
63  chSysLock();
64 // architecture dependent settings
65 #if defined(STM32F1)
66 // FIXME: STM32F1xx doesn't support several alternate modes, is it needed for drivers?
67  (void)port;
68  (void)pin;
69  (void)af;
70  (void)is_output;
71 #elif defined(STM32F4) || defined(STM32F3) || defined(STM32F7)
72 // STM32F4xx, STM32F3xx and STM32F7xx
73  if (af) {
74  palSetPadMode(port, pin, PAL_MODE_ALTERNATE(af));
75  } else {
76  if (is_output) {
77  palSetPadMode(port, pin, PAL_MODE_OUTPUT_PUSHPULL);
78  } else {
79  palSetPadMode(port, pin, PAL_MODE_INPUT);
80  }
81  }
82 #endif
83  chSysUnlock();
84 }
85 
86 void gpio_setup_pin_analog(ioportid_t port, uint16_t pin)
87 {
88  chSysLock();
89  palSetPadMode(port, pin, PAL_MODE_INPUT_ANALOG);
90  chSysUnlock();
91 }
92 
void gpio_setup_pin_af(ioportid_t port, uint16_t pin, uint8_t af, bool is_output)
Setup a gpio for input or output with alternate function.
Definition: gpio_arch.c:61
unsigned short uint16_t
Definition: types.h:16
Some architecture independent helper functions for GPIOs.
void gpio_setup_output(ioportid_t port, uint16_t gpios)
Setup one or more pins of the given GPIO port as outputs.
Definition: gpio_arch.c:33
void gpio_setup_input_pullup(ioportid_t port, uint16_t gpios)
Setup one or more pins of the given GPIO port as inputs with pull up resistor enabled.
Definition: gpio_arch.c:47
void gpio_setup_pin_analog(ioportid_t port, uint16_t pin)
Setup a gpio for analog use.
Definition: gpio_arch.c:86
unsigned char uint8_t
Definition: types.h:14
void gpio_setup_input_pulldown(ioportid_t port, uint16_t gpios)
Setup one or more pins of the given GPIO port as inputs with pull down resistors enabled.
Definition: gpio_arch.c:54
void gpio_setup_input(ioportid_t port, uint16_t gpios)
Setup one or more pins of the given GPIO port as inputs.
Definition: gpio_arch.c:40