libs/rt-thread-official
libs
/
rt-thread-official
mirror of https://github.com/RT-Thread/rt-thread.git
4
0
Fork 0
Code Issues Releases Wiki Activity

Merge remote-tracking branch 'upstream/master'

This commit is contained in:
Bernard Xiong 2015-01-20 15:56:52 +08:00
parent 2b7600bdf3 9261c37e0e
commit 080c8912ea
2 changed files with 232 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

213
bsp/stm32f40x/drivers/gpio.c Normal file
View File

@ -0,0 +1,213 @@
/*
* File : gpio.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2015, RT-Thread Development Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2015-01-05 Bernard the first version
*/
#include <rthw.h>
#include <rtdevice.h>
#include <board.h>
#ifdef RT_USING_PIN
/* STM32 GPIO driver */
struct pin_index
{
int index;
uint32_t rcc;
GPIO_TypeDef *gpio;
uint32_t pin;
};
static const struct pin_index pins[] =
{
{ 0, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_7},
{ 1, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_6},
{ 2, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_8},
{ 3, RCC_AHB1Periph_GPIOB, GPIOB, GPIO_Pin_11},
{ 4, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_14},
{ 5, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_13},
{ 6, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_11},
{ 7, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_9},
{ 8, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_12},
{ 9, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_13},
{10, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_14},
{11, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_15},
{12, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_6},
{13, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_5},
{14, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_8},
{15, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_9},
{16, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_5},
{17, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_6},
{18, RCC_AHB1Periph_GPIOB, GPIOB, GPIO_Pin_6},
{19, RCC_AHB1Periph_GPIOB, GPIOB, GPIO_Pin_7},
{20, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_9},
{21, RCC_AHB1Periph_GPIOA, GPIOA, GPIO_Pin_8},
{22, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_12},
{23, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_2},
{24, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_1},
{25, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_0},
{26, RCC_AHB1Periph_GPIOA, GPIOA, GPIO_Pin_9},
{27, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_13},
{28, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_15},
{29, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_12},
{30, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_10},
{31, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_8},
{32, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_7},
{33, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_4},
{34, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_3},
{35, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_2},
{36, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_1},
{37, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_0},
{38, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_11},
{39, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_10},
{40, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_7},
{41, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_3},
{42, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_4},
{43, RCC_AHB1Periph_GPIOB, GPIOB, GPIO_Pin_8},
{44, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_15},
{45, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_14},
{46, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_11},
{47, RCC_AHB1Periph_GPIOB, GPIOB, GPIO_Pin_5},
{48, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_10},
{49, RCC_AHB1Periph_GPIOA, GPIOA, GPIO_Pin_15},
{50, RCC_AHB1Periph_GPIOB, GPIOB, GPIO_Pin_4},
{51, RCC_AHB1Periph_GPIOA, GPIOA, GPIO_Pin_7},
{52, RCC_AHB1Periph_GPIOB, GPIOB, GPIO_Pin_3},
{53, RCC_AHB1Periph_GPIOA, GPIOA, GPIO_Pin_4},
};
#define ITEM_NUM(items) sizeof(items)/sizeof(items[0])
const struct pin_index * get_pin(uint8_t pin)
{
const struct pin_index* index;
if(pin < ITEM_NUM(pins))
{
index = &pins[pin];
}
else
{
index = RT_NULL;
}
return index;
};
void stm32_pin_write(rt_device_t dev, rt_base_t pin, rt_base_t value)
{
const struct pin_index *index;
index = get_pin(pin);
if(index == RT_NULL)
{
return;
}
if(value == PIN_LOW)
{
GPIO_ResetBits(index->gpio, index->pin);
}
else
{
GPIO_SetBits(index->gpio, index->pin);
}
}
int stm32_pin_read(rt_device_t dev, rt_base_t pin)
{
int value;
const struct pin_index *index;
value = PIN_LOW;
index = get_pin(pin);
if(index == RT_NULL)
{
return value;
}
if(GPIO_ReadInputDataBit(index->gpio, index->pin) == Bit_RESET)
{
value = PIN_LOW;
}
else
{
value = PIN_HIGH;
}
return value;
}
void stm32_pin_mode(rt_device_t dev, rt_base_t pin, rt_base_t mode)
{
const struct pin_index *index;
GPIO_InitTypeDef GPIO_InitStructure;
index = get_pin(pin);
if(index == RT_NULL)
{
return;
}
/* GPIO Periph clock enable */
RCC_AHB1PeriphClockCmd(index->rcc, ENABLE);
/* Configure GPIO_InitStructure */
GPIO_InitStructure.GPIO_Pin = index->pin;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
if(mode == PIN_MODE_OUTPUT)
{
/* output setting */
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
}
else if(mode == PIN_MODE_INPUT)
{
/* input setting: not pull. */
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
}
else if(mode == PIN_MODE_INPUT_PULLUP)
{
/* input setting: pull up. */
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
}
else
{
/* input setting:default. */
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN;
}
GPIO_Init(index->gpio, &GPIO_InitStructure);
}
const static struct rt_pin_ops _stm32_pin_ops =
{
stm32_pin_mode,
stm32_pin_write,
stm32_pin_read,
};
int stm32_hw_pin_init(void)
{
rt_device_pin_register("pin", &_stm32_pin_ops, RT_NULL);
return 0;
}
INIT_BOARD_EXPORT(stm32_hw_pin_init);
#endif

19
bsp/stm32f40x/drivers/gpio.h Normal file
View File

@ -0,0 +1,19 @@
/*
* File : gpio.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2015, RT-Thread Development Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2015-01-05 Bernard the first version
*/
#ifndef GPIO_H__
#define GPIO_H__
int stm32_hw_pin_init(void);
#endif