|
|
/*------------------------------------------------------------------------------
|
|
|
-- This file is a part of the libuc, microcontroler library
|
|
|
-- Copyright (C) 2012, Alexis Jeandet
|
|
|
--
|
|
|
-- This program is free software; you can redistribute it and/or modify
|
|
|
-- it under the terms of the GNU General Public License as published by
|
|
|
-- the Free Software Foundation; either version 3 of the License, or
|
|
|
-- (at your option) any later version.
|
|
|
--
|
|
|
-- This program is distributed in the hope that it will be useful,
|
|
|
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
-- GNU General Public License for more details.
|
|
|
--
|
|
|
-- You should have received a copy of the GNU General Public License
|
|
|
-- along with this program; if not, write to the Free Software
|
|
|
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
-------------------------------------------------------------------------------
|
|
|
-- Author : Alexis Jeandet
|
|
|
-- Mail : alexis.jeandet@member.fsf.org
|
|
|
-------------------------------------------------------------------------------*/
|
|
|
#include <gpio.h>
|
|
|
#include <stm32f4xx_gpio.h>
|
|
|
#include <stm32f4xx_rcc.h>
|
|
|
|
|
|
#define GPIOGETPORT(gpio) ((GPIO_TypeDef*)(((((uint32_t)gpio) & (uint32_t)0x0000FF00)*(uint32_t)4) + (uint32_t)GPIOA))
|
|
|
#define GPIOPORTNUM(gpio) (((uint32_t)(gpio) & (uint32_t)0x0000FF00)>>(uint32_t)8)
|
|
|
|
|
|
|
|
|
gpio_t gpioopen(uint32_t gpio)
|
|
|
{
|
|
|
gpiosetconfig(gpio,gpioindir,gpiolowspeed,gpiopulluptype,gpionopulltype);
|
|
|
RCC_AHB1PeriphClockCmd(((uint32_t)0x00000001<<GPIOPORTNUM(gpio)), ENABLE);
|
|
|
return gpio;
|
|
|
}
|
|
|
|
|
|
gpio_t gpioopenandconfig(uint32_t gpio, gpioconfig_str *config)
|
|
|
{
|
|
|
gpiosetconfig(gpio, config->direction, config->speed, config->outType, config->pullType);
|
|
|
RCC_AHB1PeriphClockCmd(((uint32_t)0x00000001<<GPIOPORTNUM(gpio)), ENABLE);
|
|
|
return gpio;
|
|
|
}
|
|
|
|
|
|
void gpioclose(gpio_t gpio)
|
|
|
{
|
|
|
}
|
|
|
|
|
|
void gpiosetconfig(gpio_t gpio, gpiodir_t direction, gpiospeed_t speed, gpioouttype_t outType, gpiopulltype_t pullType)
|
|
|
{
|
|
|
gpiosetdir(gpio, direction);
|
|
|
gpiosetspeed(gpio, speed);
|
|
|
gpiosetouttype(gpio, outType);
|
|
|
gpiosetpulltype(gpio, pullType);
|
|
|
}
|
|
|
|
|
|
void gpiosetconfigstr(gpio_t gpio, gpioconfig_str* config)
|
|
|
{
|
|
|
gpiosetconfig(gpio, config->direction, config->speed, config->outType, config->pullType);
|
|
|
}
|
|
|
|
|
|
extern void gpiosetspeed(gpio_t gpio,gpiospeed_t speed)
|
|
|
{
|
|
|
GPIO_TypeDef* GPIOx = GPIOGETPORT((gpio));
|
|
|
uint32_t speedMask = GPIO_Speed_2MHz;
|
|
|
switch(speed)
|
|
|
{
|
|
|
case gpiolowspeed :
|
|
|
speedMask = GPIO_Speed_2MHz;
|
|
|
break;
|
|
|
case gpiomediumspeed :
|
|
|
speedMask = GPIO_Speed_25MHz;
|
|
|
break;
|
|
|
case gpiofastspeed :
|
|
|
speedMask = GPIO_Speed_50MHz;
|
|
|
break;
|
|
|
case gpiohighspeed :
|
|
|
speedMask = GPIO_Speed_100MHz;
|
|
|
break;
|
|
|
}
|
|
|
if((gpio & 0xFF)==0xFF)
|
|
|
{
|
|
|
for(int i=0;i<16;i++)
|
|
|
{
|
|
|
GPIOx->OSPEEDR &= ~(GPIO_OSPEEDER_OSPEEDR0 << (i * 2));
|
|
|
GPIOx->OSPEEDR |= ((speedMask) << (i * 2));
|
|
|
}
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
GPIOx->OSPEEDR &= ~(GPIO_OSPEEDER_OSPEEDR0 << ((gpio & 0xFF) * 2));
|
|
|
GPIOx->OSPEEDR |= ((speedMask) << ((gpio & 0xFF) * 2));
|
|
|
}
|
|
|
}
|
|
|
|
|
|
|
|
|
void gpiosetdir(gpio_t gpio, gpiodir_t dir)
|
|
|
{
|
|
|
GPIO_TypeDef* GPIOx = GPIOGETPORT((gpio));
|
|
|
uint32_t directionMask = GPIO_Mode_IN;
|
|
|
switch(dir)
|
|
|
{
|
|
|
case gpiooutdir:
|
|
|
directionMask = GPIO_Mode_OUT;
|
|
|
break;
|
|
|
case gpioaf:
|
|
|
directionMask = GPIO_Mode_AF;
|
|
|
break;
|
|
|
case gpioan:
|
|
|
directionMask = GPIO_Mode_AN;
|
|
|
break;
|
|
|
}
|
|
|
if((gpio & 0xFF)==0xFF)
|
|
|
{
|
|
|
for(int i=0;i<16;i++)
|
|
|
{
|
|
|
GPIOx->MODER &= ~(GPIO_MODER_MODER0 << (i * 2));
|
|
|
GPIOx->MODER |= (directionMask << (i * 2));
|
|
|
}
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
GPIOx->MODER &= ~(GPIO_MODER_MODER0 << ((gpio & 0xFF) * 2));
|
|
|
GPIOx->MODER |= (directionMask << ((gpio & 0xFF) * 2));
|
|
|
}
|
|
|
}
|
|
|
|
|
|
|
|
|
void gpiosetouttype(gpio_t gpio, gpioouttype_t outtype)
|
|
|
{
|
|
|
GPIO_TypeDef* GPIOx = GPIOGETPORT((gpio));
|
|
|
uint16_t outTypeMask = GPIO_OType_PP;
|
|
|
if(outtype == gpioopendraintype)
|
|
|
outTypeMask = GPIO_OType_OD;
|
|
|
else
|
|
|
outTypeMask = GPIO_OType_PP;
|
|
|
|
|
|
if((gpio & 0xFF)==0xFF)
|
|
|
{
|
|
|
for(int i=0;i<16;i++)
|
|
|
{
|
|
|
GPIOx->OTYPER &= ~((GPIO_OTYPER_OT_0) << ((uint16_t)i));
|
|
|
GPIOx->OTYPER |= (uint16_t)(outTypeMask<<((uint16_t)i));
|
|
|
}
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
GPIOx->OTYPER &= ~((GPIO_OTYPER_OT_0) << ((uint16_t)(gpio & 0xFF)));
|
|
|
GPIOx->OTYPER |= (uint16_t)(outTypeMask<<((uint16_t)(gpio & 0xFF)));
|
|
|
}
|
|
|
}
|
|
|
|
|
|
|
|
|
void gpiosetpulltype(gpio_t gpio,gpiopulltype_t pulltype)
|
|
|
{
|
|
|
GPIO_TypeDef* GPIOx = GPIOGETPORT(gpio);
|
|
|
uint32_t pullTypeMask=GPIO_PuPd_NOPULL;
|
|
|
switch(pulltype)
|
|
|
{
|
|
|
case gpiopulluptype:
|
|
|
pullTypeMask=GPIO_PuPd_UP;
|
|
|
break;
|
|
|
case gpiopulldowntype:
|
|
|
pullTypeMask=GPIO_PuPd_DOWN;
|
|
|
break;
|
|
|
default :
|
|
|
pullTypeMask=GPIO_PuPd_NOPULL;
|
|
|
break;
|
|
|
}
|
|
|
if((gpio & 0xFF)==0xFF)
|
|
|
{
|
|
|
for(int i=0;i<16;i++)
|
|
|
{
|
|
|
GPIOx->PUPDR &= ~(GPIO_PUPDR_PUPDR0 << ((uint16_t)i * 2));
|
|
|
GPIOx->PUPDR |= (pullTypeMask << (i * 2));
|
|
|
}
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
GPIOx->PUPDR &= ~(GPIO_PUPDR_PUPDR0 << ((uint16_t)(gpio & 0xFF) * 2));
|
|
|
GPIOx->PUPDR |= (pullTypeMask << ((gpio & 0xFF) * 2));
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void gpioset(gpio_t gpio)
|
|
|
{
|
|
|
GPIO_TypeDef* GPIOx = GPIOGETPORT(gpio);
|
|
|
if((gpio & 0xFF)==0xFF)
|
|
|
{
|
|
|
GPIOx->BSRRL = -1;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
GPIOx->BSRRL = 1<<(gpio & 0xFF);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
|
|
|
void gpioclr(gpio_t gpio)
|
|
|
{
|
|
|
GPIO_TypeDef* GPIOx = GPIOGETPORT(gpio);
|
|
|
if((gpio & 0xFF)==0xFF)
|
|
|
{
|
|
|
GPIOx->BSRRH = -1;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
GPIOx->BSRRH = 1<<(gpio & 0xFF);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void gpiosetval(gpio_t gpio,int val)
|
|
|
{
|
|
|
GPIO_TypeDef* GPIOx = GPIOGETPORT(gpio);
|
|
|
if((gpio & 0xFF)==0xFF)
|
|
|
{
|
|
|
GPIOx->ODR = val;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
if(val)
|
|
|
GPIOx->BSRRL = 1<<(gpio & 0xFF);
|
|
|
else
|
|
|
GPIOx->BSRRH = 1<<(gpio & 0xFF);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
int gpiogetval(gpio_t gpio)
|
|
|
{
|
|
|
GPIO_TypeDef* GPIOx = GPIOGETPORT(gpio);
|
|
|
if((gpio & 0xFF)==0xFF)
|
|
|
{
|
|
|
return GPIOx->IDR;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
return ((GPIOx->IDR>>(gpio & 0xFF)) & 1);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
