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提交 6acf4a45 编写于 作者: B Bernard Xiong
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[BSP] Update UART and GPIO driver with framework in STM32F4

上级 1bb425e8
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Showing with 308 addition and 909 deletion
bsp/stm32f40x/drivers/board.c
浏览文件 @ 6acf4a45
......@@ -17,6 +17,8 @@
#include "stm32f4xx.h"
#include "board.h"
#include "usart.h"
#include "gpio.h"
/**
* @addtogroup STM32
......@@ -92,6 +94,8 @@ void rt_hw_board_init()
SysTick_Configuration();
rt_hw_usart_init();
stm32_hw_pin_init();
#ifdef RT_USING_CONSOLE
rt_console_set_device(CONSOLE_DEVICE);
#endif
......
bsp/stm32f40x/drivers/board.h
浏览文件 @ 6acf4a45
......@@ -40,11 +40,6 @@
#define STM32_SRAM_SIZE 128
#define STM32_SRAM_END (0x20000000 + STM32_SRAM_SIZE * 1024)
//#define RT_USING_UART1
#define RT_USING_UART2
//#define RT_USING_UART3
//#define RT_USING_UART6
// <o> Console on USART: <0=> no console <1=>USART 1 <2=>USART 2 <3=> USART 3
// <i>Default: 1
#define STM32_CONSOLE_USART 2
......@@ -63,11 +58,6 @@ void rt_hw_board_init(void);
#define FINSH_DEVICE_NAME CONSOLE_DEVICE
void rt_hw_usart_init(void);
/* SD Card init function */
void rt_hw_msd_init(void);
#endif
// <<< Use Configuration Wizard in Context Menu >>>
bsp/stm32f40x/drivers/serial.c 已删除 100644 → 0
浏览文件 @ 1bb425e8
/*
* File : serial.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2009, 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
* 2009-02-05 Bernard first version
* 2009-10-25 Bernard fix rt_serial_read bug when there is no data
* in the buffer.
* 2010-03-29 Bernard cleanup code.
*/
#include "serial.h"
#include <stm32f4xx_dma.h>
#include <stm32f4xx_usart.h>
static void rt_serial_enable_dma(DMA_Stream_TypeDef* dma_channel,
rt_uint32_t address, rt_uint32_t size);
/**
* @addtogroup STM32
*/
/*@{*/
/* RT-Thread Device Interface */
static rt_err_t rt_serial_init (rt_device_t dev)
{
struct stm32_serial_device* uart = (struct stm32_serial_device*) dev->user_data;
if (!(dev->flag & RT_DEVICE_FLAG_ACTIVATED))
{
if (dev->flag & RT_DEVICE_FLAG_INT_RX)
{
rt_memset(uart->int_rx->rx_buffer, 0,
sizeof(uart->int_rx->rx_buffer));
uart->int_rx->read_index = 0;
uart->int_rx->save_index = 0;
}
if (dev->flag & RT_DEVICE_FLAG_DMA_TX)
{
RT_ASSERT(uart->dma_tx->dma_channel != RT_NULL);
uart->dma_tx->list_head = uart->dma_tx->list_tail = RT_NULL;
/* init data node memory pool */
rt_mp_init(&(uart->dma_tx->data_node_mp), "dn",
uart->dma_tx->data_node_mem_pool,
sizeof(uart->dma_tx->data_node_mem_pool),
sizeof(struct stm32_serial_data_node));
}
/* Enable USART */
USART_Cmd(uart->uart_device, ENABLE);
dev->flag |= RT_DEVICE_FLAG_ACTIVATED;
}
return RT_EOK;
}
static rt_err_t rt_serial_open(rt_device_t dev, rt_uint16_t oflag)
{
return RT_EOK;
}
static rt_err_t rt_serial_close(rt_device_t dev)
{
return RT_EOK;
}
static rt_size_t rt_serial_read (rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size)
{
rt_uint8_t* ptr;
rt_err_t err_code;
struct stm32_serial_device* uart;
ptr = buffer;
err_code = RT_EOK;
uart = (struct stm32_serial_device*)dev->user_data;
if (dev->flag & RT_DEVICE_FLAG_INT_RX)
{
/* interrupt mode Rx */
while (size)
{
rt_base_t level;
/* disable interrupt */
level = rt_hw_interrupt_disable();
if (uart->int_rx->read_index != uart->int_rx->save_index)
{
/* read a character */
*ptr++ = uart->int_rx->rx_buffer[uart->int_rx->read_index];
size--;
/* move to next position */
uart->int_rx->read_index ++;
if (uart->int_rx->read_index >= UART_RX_BUFFER_SIZE)
uart->int_rx->read_index = 0;
}
else
{
/* set error code */
err_code = -RT_EEMPTY;
/* enable interrupt */
rt_hw_interrupt_enable(level);
break;
}
/* enable interrupt */
rt_hw_interrupt_enable(level);
}
}
else
{
/* polling mode */
while ((rt_uint32_t)ptr - (rt_uint32_t)buffer < size)
{
while (uart->uart_device->SR & USART_FLAG_RXNE)
{
*ptr = uart->uart_device->DR & 0xff;
ptr ++;
}
}
}
/* set error code */
rt_set_errno(err_code);
return (rt_uint32_t)ptr - (rt_uint32_t)buffer;
}
static void rt_serial_enable_dma(DMA_Stream_TypeDef* dma_channel,
rt_uint32_t address, rt_uint32_t size)
{
RT_ASSERT(dma_channel != RT_NULL);
/* disable DMA */
DMA_Cmd(dma_channel, DISABLE);
/* set buffer address */
dma_channel->M0AR = address;
/* set size */
dma_channel->NDTR = size;
/* enable DMA */
DMA_Cmd(dma_channel, ENABLE);
}
static rt_size_t rt_serial_write (rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size)
{
rt_uint8_t* ptr;
rt_err_t err_code;
struct stm32_serial_device* uart;
err_code = RT_EOK;
ptr = (rt_uint8_t*)buffer;
uart = (struct stm32_serial_device*)dev->user_data;
if (dev->flag & RT_DEVICE_FLAG_INT_TX)
{
/* interrupt mode Tx, does not support */
RT_ASSERT(0);
}
else if (dev->flag & RT_DEVICE_FLAG_DMA_TX)
{
/* DMA mode Tx */
/* allocate a data node */
struct stm32_serial_data_node* data_node = (struct stm32_serial_data_node*)
rt_mp_alloc (&(uart->dma_tx->data_node_mp), RT_WAITING_FOREVER);
if (data_node == RT_NULL)
{
/* set error code */
err_code = -RT_ENOMEM;
}
else
{
rt_uint32_t level;
/* fill data node */
data_node->data_ptr = ptr;
data_node->data_size = size;
/* insert to data link */
data_node->next = RT_NULL;
/* disable interrupt */
level = rt_hw_interrupt_disable();
data_node->prev = uart->dma_tx->list_tail;
if (uart->dma_tx->list_tail != RT_NULL)
uart->dma_tx->list_tail->next = data_node;
uart->dma_tx->list_tail = data_node;
if (uart->dma_tx->list_head == RT_NULL)
{
/* start DMA to transmit data */
uart->dma_tx->list_head = data_node;
/* Enable DMA Channel */
rt_serial_enable_dma(uart->dma_tx->dma_channel,
(rt_uint32_t)uart->dma_tx->list_head->data_ptr,
uart->dma_tx->list_head->data_size);
}
/* enable interrupt */
rt_hw_interrupt_enable(level);
}
}
else
{
/* polling mode */
if (dev->flag & RT_DEVICE_FLAG_STREAM)
{
/* stream mode */
while (size)
{
if (*ptr == '\n')
{
while (!(uart->uart_device->SR & USART_FLAG_TXE));
uart->uart_device->DR = '\r';
}
while (!(uart->uart_device->SR & USART_FLAG_TXE));
uart->uart_device->DR = (*ptr & 0x1FF);
++ptr; --size;
}
}
else
{
/* write data directly */
while (size)
{
while (!(uart->uart_device->SR & USART_FLAG_TXE));
uart->uart_device->DR = (*ptr & 0x1FF);
++ptr; --size;
}
}
}
/* set error code */
rt_set_errno(err_code);
return (rt_uint32_t)ptr - (rt_uint32_t)buffer;
}
static rt_err_t rt_serial_control (rt_device_t dev, rt_uint8_t cmd, void *args)
{
struct stm32_serial_device* uart;
RT_ASSERT(dev != RT_NULL);
uart = (struct stm32_serial_device*)dev->user_data;
switch (cmd)
{
case RT_DEVICE_CTRL_SUSPEND:
/* suspend device */
dev->flag |= RT_DEVICE_FLAG_SUSPENDED;
USART_Cmd(uart->uart_device, DISABLE);
break;
case RT_DEVICE_CTRL_RESUME:
/* resume device */
dev->flag &= ~RT_DEVICE_FLAG_SUSPENDED;
USART_Cmd(uart->uart_device, ENABLE);
break;
}
return RT_EOK;
}
/*
* serial register for STM32
* support STM32F103VB and STM32F103ZE
*/
rt_err_t rt_hw_serial_register(rt_device_t device, const char* name, rt_uint32_t flag, struct stm32_serial_device *serial)
{
RT_ASSERT(device != RT_NULL);
if ((flag & RT_DEVICE_FLAG_DMA_RX) ||
(flag & RT_DEVICE_FLAG_INT_TX))
{
RT_ASSERT(0);
}
device->type = RT_Device_Class_Char;
device->rx_indicate = RT_NULL;
device->tx_complete = RT_NULL;
device->init = rt_serial_init;
device->open = rt_serial_open;
device->close = rt_serial_close;
device->read = rt_serial_read;
device->write = rt_serial_write;
device->control = rt_serial_control;
device->user_data = serial;
/* register a character device */
return rt_device_register(device, name, RT_DEVICE_FLAG_RDWR | flag);
}
/* ISR for serial interrupt */
void rt_hw_serial_isr(rt_device_t device)
{
struct stm32_serial_device* uart = (struct stm32_serial_device*) device->user_data;
if(USART_GetITStatus(uart->uart_device, USART_IT_RXNE) != RESET)
{
/* interrupt mode receive */
RT_ASSERT(device->flag & RT_DEVICE_FLAG_INT_RX);
/* save on rx buffer */
while (uart->uart_device->SR & USART_FLAG_RXNE)
{
rt_base_t level;
/* disable interrupt */
level = rt_hw_interrupt_disable();
/* save character */
uart->int_rx->rx_buffer[uart->int_rx->save_index] = uart->uart_device->DR & 0xff;
uart->int_rx->save_index ++;
if (uart->int_rx->save_index >= UART_RX_BUFFER_SIZE)
uart->int_rx->save_index = 0;
/* if the next position is read index, discard this 'read char' */
if (uart->int_rx->save_index == uart->int_rx->read_index)
{
uart->int_rx->read_index ++;
if (uart->int_rx->read_index >= UART_RX_BUFFER_SIZE)
uart->int_rx->read_index = 0;
}
/* enable interrupt */
rt_hw_interrupt_enable(level);
}
/* clear interrupt */
USART_ClearITPendingBit(uart->uart_device, USART_IT_RXNE);
/* invoke callback */
if (device->rx_indicate != RT_NULL)
{
rt_size_t rx_length;
/* get rx length */
rx_length = uart->int_rx->read_index > uart->int_rx->save_index ?
UART_RX_BUFFER_SIZE - uart->int_rx->read_index + uart->int_rx->save_index :
uart->int_rx->save_index - uart->int_rx->read_index;
device->rx_indicate(device, rx_length);
}
}
if (USART_GetITStatus(uart->uart_device, USART_IT_TC) != RESET)
{
/* clear interrupt */
USART_ClearITPendingBit(uart->uart_device, USART_IT_TC);
}
}
/*
* ISR for DMA mode Tx
*/
void rt_hw_serial_dma_tx_isr(rt_device_t device)
{
rt_uint32_t level;
struct stm32_serial_data_node* data_node;
struct stm32_serial_device* uart = (struct stm32_serial_device*) device->user_data;
/* DMA mode receive */
RT_ASSERT(device->flag & RT_DEVICE_FLAG_DMA_TX);
/* get the first data node */
data_node = uart->dma_tx->list_head;
RT_ASSERT(data_node != RT_NULL);
/* invoke call to notify tx complete */
if (device->tx_complete != RT_NULL)
device->tx_complete(device, data_node->data_ptr);
/* disable interrupt */
level = rt_hw_interrupt_disable();
/* remove list head */
uart->dma_tx->list_head = data_node->next;
if (uart->dma_tx->list_head == RT_NULL) /* data link empty */
uart->dma_tx->list_tail = RT_NULL;
/* enable interrupt */
rt_hw_interrupt_enable(level);
/* release data node memory */
rt_mp_free(data_node);
if (uart->dma_tx->list_head != RT_NULL)
{
/* transmit next data node */
rt_serial_enable_dma(uart->dma_tx->dma_channel,
(rt_uint32_t)uart->dma_tx->list_head->data_ptr,
uart->dma_tx->list_head->data_size);
}
else
{
/* no data to be transmitted, disable DMA */
DMA_Cmd(uart->dma_tx->dma_channel, DISABLE);
}
}
/*@}*/
bsp/stm32f40x/drivers/serial.h 已删除 100644 → 0
浏览文件 @ 1bb425e8
/*
* File : serial.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2009 - 2010, 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
* 2009-01-05 Bernard first version
* 2010-03-29 Bernard remove interrupt tx and DMA rx mode.
*/
#ifndef __RT_HW_SERIAL_H__
#define __RT_HW_SERIAL_H__
#include <rthw.h>
#include <rtthread.h>
/* STM32F40x library definitions */
#include <stm32f4xx.h>
#define UART_RX_BUFFER_SIZE 64
#define UART_TX_DMA_NODE_SIZE 4
/* data node for Tx Mode */
struct stm32_serial_data_node
{
rt_uint8_t *data_ptr;
rt_size_t data_size;
struct stm32_serial_data_node *next, *prev;
};
struct stm32_serial_dma_tx
{
/* DMA Channel */
DMA_Stream_TypeDef* dma_channel;
/* data list head and tail */
struct stm32_serial_data_node *list_head, *list_tail;
/* data node memory pool */
struct rt_mempool data_node_mp;
rt_uint8_t data_node_mem_pool[UART_TX_DMA_NODE_SIZE *
(sizeof(struct stm32_serial_data_node) + sizeof(void*))];
};
struct stm32_serial_int_rx
{
rt_uint8_t rx_buffer[UART_RX_BUFFER_SIZE];
rt_uint32_t read_index, save_index;
};
struct stm32_serial_device
{
USART_TypeDef* uart_device;
/* rx structure */
struct stm32_serial_int_rx* int_rx;
/* tx structure */
struct stm32_serial_dma_tx* dma_tx;
};
rt_err_t rt_hw_serial_register(rt_device_t device, const char* name, rt_uint32_t flag, struct stm32_serial_device *serial);
void rt_hw_serial_isr(rt_device_t device);
void rt_hw_serial_dma_tx_isr(rt_device_t device);
#endif
bsp/stm32f40x/drivers/stm32f4xx_it.c
浏览文件 @ 6acf4a45
......@@ -54,16 +54,6 @@ void NMI_Handler(void)
{
}
/**
* @brief This function handles Hard Fault exception.
* @param None
* @retval None
*/
//void HardFault_Handler(void)
//{
// // definition in libcpu/arm/cortex-m4/context_*.S
//}
/**
* @brief This function handles Memory Manage exception.
* @param None
......@@ -112,100 +102,6 @@ void SVC_Handler(void)
{
}
/**
* @brief This function handles Debug Monitor exception.
* @param None
* @retval None
*/
//void DebugMon_Handler(void)
//{
// defined in gdb/libcpu/cortexm/gdb_gcc.S
//}
/**
* @brief This function handles PendSVC exception.
* @param None
* @retval None
*/
//void PendSV_Handler(void)
//{
// // defined in libcpu/arm/cortex-m4/context_*.S
//}
/**
* @brief This function handles SysTick Handler.
* @param None
* @retval None
*/
//void SysTick_Handler(void)
//{
// // defined in boarc.c
//}
/******************************************************************************/
/* STM32F4xx Peripherals Interrupt Handlers */
/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */
/* available peripheral interrupt handler's name please refer to the startup */
/* file (startup_stm32f4xx.s). */
/******************************************************************************/
/**
* @brief This function handles PPP interrupt request.
* @param None
* @retval None
*/
/*void PPP_IRQHandler(void)
{
}*/
void USART1_IRQHandler(void)
{
#ifdef RT_USING_UART1
extern struct rt_device uart1_device;
extern void rt_hw_serial_isr(struct rt_device *device);
/* enter interrupt */
rt_interrupt_enter();
rt_hw_serial_isr(&uart1_device);
/* leave interrupt */
rt_interrupt_leave();
#endif
}
void USART2_IRQHandler(void)
{
#ifdef RT_USING_UART2
extern struct rt_device uart2_device;
extern void rt_hw_serial_isr(struct rt_device *device);
/* enter interrupt */
rt_interrupt_enter();
rt_hw_serial_isr(&uart2_device);
/* leave interrupt */
rt_interrupt_leave();
#endif
}
void USART3_IRQHandler(void)
{
#ifdef RT_USING_UART3
extern struct rt_device uart3_device;
extern void rt_hw_serial_isr(struct rt_device *device);
/* enter interrupt */
rt_interrupt_enter();
rt_hw_serial_isr(&uart3_device);
/* leave interrupt */
rt_interrupt_leave();
#endif
}
/**
* @}
*/
......
bsp/stm32f40x/drivers/usart.c
浏览文件 @ 6acf4a45
此差异已折叠。
bsp/stm32f40x/drivers/usart.h
浏览文件 @ 6acf4a45
......@@ -18,6 +18,9 @@
#include <rthw.h>
#include <rtthread.h>
void rt_hw_usart_init(void);
#define UART_ENABLE_IRQ(n) NVIC_EnableIRQ((n))
#define UART_DISABLE_IRQ(n) NVIC_DisableIRQ((n))
int stm32_hw_usart_init(void);
#endif
bsp/stm32f40x/rtconfig.h
浏览文件 @ 6acf4a45
......@@ -2,14 +2,11 @@
#ifndef __RTTHREAD_CFG_H__
#define __RTTHREAD_CFG_H__
/* RT_GDB_STUB */
//#define RT_USING_GDB
/* RT_NAME_MAX*/
#define RT_NAME_MAX 8
/* RT_ALIGN_SIZE*/
#define RT_ALIGN_SIZE 8
#define RT_ALIGN_SIZE 4
/* PRIORITY_MAX */
#define RT_THREAD_PRIORITY_MAX 32
......@@ -20,7 +17,6 @@
/* SECTION: RT_DEBUG */
/* Thread Debug */
#define RT_DEBUG
#define RT_USING_OVERFLOW_CHECK
/* Using Hook */
......@@ -62,6 +58,16 @@
/* SECTION: Device System */
/* Using Device System */
#define RT_USING_DEVICE
#define RT_USING_DEVICE_IPC
/* Using serial framework */
#define RT_USING_SERIAL
#define RT_USING_UART1
#define RT_USING_UART2
#define RT_USING_UART3
/* Using GPIO pin framework */
#define RT_USING_PIN
/* SECTION: Console options */
#define RT_USING_CONSOLE
......@@ -75,7 +81,14 @@
#define FINSH_USING_DESCRIPTION
/* SECTION: device filesystem */
/* Using Device file system */
/* #define RT_USING_DFS */
/* the max number of mounted filesystem */
#define DFS_FILESYSTEMS_MAX 2
/* the max number of opened files */
#define DFS_FD_MAX 4
/* Using ELM FATFS */
//#define RT_USING_DFS_ELMFAT
#define RT_DFS_ELM_WORD_ACCESS
/* Reentrancy (thread safe) of the FatFs module. */
......@@ -87,12 +100,8 @@
/* Maximum sector size to be handled. */
#define RT_DFS_ELM_MAX_SECTOR_SIZE 512
#define RT_USING_DFS_ROMFS
/* the max number of mounted filesystem */
#define DFS_FILESYSTEMS_MAX 2
/* the max number of opened files */
#define DFS_FD_MAX 4
/* Using ROM file system */
// #define RT_USING_DFS_ROMFS
/* SECTION: lwip, a lighwight TCP/IP protocol stack */
/* #define RT_USING_LWIP */
......@@ -151,4 +160,7 @@
#define CHECKSUM_GEN_IP 0
#define CHECKSUM_GEN_UDP 0
/* RT_GDB_STUB */
//#define RT_USING_GDB
#endif
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