mirror of
https://github.com/RT-Thread/rt-thread.git
synced 2026-09-22 11:30:01 +08:00
add license and copyright info
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@226 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
@@ -1,7 +1,7 @@
|
||||
/*
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||||
* File : context_gcc.S
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||||
* This file is part of RT-Thread RTOS
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||||
* COPYRIGHT (C) 2006 - 2009, RT-Thread Development Team
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||||
* 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
|
||||
@@ -151,9 +151,9 @@ rt_hw_context_switch_to:
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||||
LDR r0, =NVIC_INT_CTRL /* trigger the PendSV exception (causes context switch) */
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LDR r1, =NVIC_PENDSVSET
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STR r1, [r0]
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CPSIE I /* enable interrupts at processor level */
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/* never reach here! */
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/* compatible with old version */
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@@ -1,7 +1,7 @@
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;/*
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; * File : context.S
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; * File : context_iar.S
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||||
; * This file is part of RT-Thread RTOS
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||||
; * COPYRIGHT (C) 2006, RT-Thread Development Team
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||||
; * COPYRIGHT (C) 2009, RT-Thread Development Team
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||||
; *
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||||
; * The license and distribution terms for this file may be
|
||||
; * found in the file LICENSE in this distribution or at
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||||
@@ -109,7 +109,7 @@ rt_hw_pend_sv:
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swtich_to_thread
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LDR r1, =rt_interrupt_to_thread
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LDR r1, [r1]
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LDR r1, [r1] ; load thread stack pointer
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LDR r1, [r1] ; load thread stack pointer
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LDMFD r1!, {r4 - r11} ; pop r4 - r11 register
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MSR psp, r1 ; update stack pointer
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@@ -148,9 +148,9 @@ rt_hw_context_switch_to:
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LDR r0, =NVIC_INT_CTRL ; trigger the PendSV exception (causes context switch)
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LDR r1, =NVIC_PENDSVSET
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STR r1, [r0]
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CPSIE I ; enable interrupts at processor level
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; never reach here!
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; compatible with old version
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@@ -1,7 +1,7 @@
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;/*
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; * File : context.S
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; * File : context_rvds.S
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||||
; * This file is part of RT-Thread RTOS
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||||
; * COPYRIGHT (C) 2006, RT-Thread Development Team
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||||
; * COPYRIGHT (C) 2009, RT-Thread Development Team
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||||
; *
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||||
; * The license and distribution terms for this file may be
|
||||
; * found in the file LICENSE in this distribution or at
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||||
@@ -112,7 +112,7 @@ rt_hw_pend_sv PROC
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swtich_to_thread
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LDR r1, =rt_interrupt_to_thread
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LDR r1, [r1]
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LDR r1, [r1] ; load thread stack pointer
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LDR r1, [r1] ; load thread stack pointer
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LDMFD r1!, {r4 - r11} ; pop r4 - r11 register
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MSR psp, r1 ; update stack pointer
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@@ -155,10 +155,10 @@ rt_hw_context_switch_to PROC
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LDR r0, =NVIC_INT_CTRL
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LDR r1, =NVIC_PENDSVSET
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STR r1, [r0]
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; enable interrupts at processor level
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CPSIE I
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; never reach here!
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ENDP
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@@ -1,15 +1,15 @@
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/*
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* File : cpu.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2006, RT-Thread Develop Team
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||||
* 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://openlab.rt-thread.com/license/LICENSE
|
||||
* http://www.rt-thread.org/license/LICENSE
|
||||
*
|
||||
* Change Logs:
|
||||
* Date Author Notes
|
||||
* 2006-03-13 Bernard first version
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* 2009-01-05 Bernard first version
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*/
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#include <rtthread.h>
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@@ -1,3 +1,16 @@
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/*
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* File : fault.c
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||||
* This file is part of RT-Thread RTOS
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||||
* 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
|
||||
* 2009-01-05 Bernard first version
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||||
*/
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#include <rtthread.h>
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struct stack_contex
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@@ -1,7 +1,7 @@
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/*
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* File : fault_gcc.S
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* This file is part of RT-Thread RTOS
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||||
* COPYRIGHT (C) 2006 - 2009, RT-Thread Development Team
|
||||
* 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
|
||||
|
||||
@@ -1,7 +1,7 @@
|
||||
;/*
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||||
; * File : context.S
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||||
; * File : fault_iar.S
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||||
; * This file is part of RT-Thread RTOS
|
||||
; * COPYRIGHT (C) 2006, RT-Thread Development Team
|
||||
; * 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
|
||||
|
||||
@@ -1,5 +1,5 @@
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||||
;/*
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||||
; * File : context.S
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||||
; * File : fault_rvds.S
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||||
; * This file is part of RT-Thread RTOS
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||||
; * COPYRIGHT (C) 2006, RT-Thread Development Team
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||||
; *
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@@ -1,15 +1,15 @@
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/*
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* File : trap.c
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* File : interrupt.c
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* This file is part of RT-Thread RTOS
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||||
* COPYRIGHT (C) 2006, RT-Thread Development Team
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||||
* 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://openlab.rt-thread.com/license/LICENSE
|
||||
* http://www.rt-thread.org/license/LICENSE
|
||||
*
|
||||
* Change Logs:
|
||||
* Date Author Notes
|
||||
* 2006-03-13 Bernard first version
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||||
* 2009-01-05 Bernard first version
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||||
*/
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#include <rtthread.h>
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+69
-69
@@ -1,11 +1,11 @@
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/*
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* File : serial.c
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* This file is part of RT-Thread RTOS
|
||||
* COPYRIGHT (C) 2006, RT-Thread Development Team
|
||||
* 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://openlab.rt-thread.com/license/LICENSE
|
||||
* http://www.rt-thread.org/license/LICENSE
|
||||
*
|
||||
* Change Logs:
|
||||
* Date Author Notes
|
||||
@@ -17,7 +17,7 @@
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||||
#include "serial.h"
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#include <stm32f10x_dma.h>
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static void rt_serial_enable_dma(DMA_Channel_TypeDef* dma_channel,
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static void rt_serial_enable_dma(DMA_Channel_TypeDef* dma_channel,
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rt_uint32_t address, rt_uint32_t size);
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/**
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@@ -34,10 +34,10 @@ int rt_serial_getc(struct stm32_serial_device* uart)
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{
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rt_base_t level;
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int ch = -1;
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/* disable interrupt */
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level = rt_hw_interrupt_disable();
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if (uart->int_rx->read_index != uart->int_rx->save_index)
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{
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ch = uart->int_rx->rx_buffer[uart->int_rx->read_index];
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@@ -46,10 +46,10 @@ int rt_serial_getc(struct stm32_serial_device* uart)
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if (uart->int_rx->read_index >= UART_RX_BUFFER_SIZE)
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uart->int_rx->read_index = 0;
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}
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/* enable interrupt */
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rt_hw_interrupt_enable(level);
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return ch;
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}
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@@ -57,7 +57,7 @@ int rt_serial_getc(struct stm32_serial_device* uart)
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void rt_serial_savechar(struct stm32_serial_device* uart, char ch)
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{
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rt_base_t level;
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/* disable interrupt */
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level = rt_hw_interrupt_disable();
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@@ -65,7 +65,7 @@ void rt_serial_savechar(struct stm32_serial_device* uart, char ch)
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uart->int_rx->save_index ++;
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if (uart->int_rx->save_index >= UART_RX_BUFFER_SIZE)
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uart->int_rx->save_index = 0;
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/* if the next position is read index, discard this 'read char' */
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if (uart->int_rx->save_index == uart->int_rx->read_index)
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{
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@@ -107,26 +107,26 @@ static rt_err_t rt_serial_init (rt_device_t dev)
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{
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if (dev->flag & RT_DEVICE_FLAG_INT_RX)
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{
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rt_memset(uart->int_rx->rx_buffer, 0,
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rt_memset(uart->int_rx->rx_buffer, 0,
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sizeof(uart->int_rx->rx_buffer));
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uart->int_rx->read_index = 0;
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uart->int_rx->save_index = 0;
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}
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if (dev->flag & RT_DEVICE_FLAG_DMA_RX)
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{
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RT_ASSERT(uart->dma_rx->dma_channel != RT_NULL);
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uart->dma_rx->read_index = uart->dma_rx->read_descriptor = 0;
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uart->dma_rx->is_full = RT_FALSE;
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}
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if (dev->flag & RT_DEVICE_FLAG_INT_TX)
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{
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rt_memset(uart->int_tx->tx_buffer, 0,
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rt_memset(uart->int_tx->tx_buffer, 0,
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sizeof(uart->int_tx->tx_buffer));
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uart->int_tx->write_index = uart->int_tx->save_index = 0;
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}
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if (dev->flag & RT_DEVICE_FLAG_DMA_TX)
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{
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RT_ASSERT(uart->dma_rx->dma_channel != RT_NULL);
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@@ -145,28 +145,28 @@ static rt_err_t rt_serial_init (rt_device_t dev)
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static rt_err_t rt_serial_open(rt_device_t dev, rt_uint16_t oflag)
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{
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struct stm32_serial_device* uart;
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RT_ASSERT(dev != RT_NULL);
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uart = (struct stm32_serial_device*)dev->private;
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if (dev->flag & RT_DEVICE_FLAG_DMA_RX)
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{
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/* enable Rx DMA */
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rt_serial_enable_dma(uart->dma_rx->dma_channel,
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rt_serial_enable_dma(uart->dma_rx->dma_channel,
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(rt_uint32_t)&(uart->dma_rx->rx_buffer[uart->dma_rx->save_descriptor][0]),
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UART_DMA_RX_BUFFER_SIZE);
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}
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return RT_EOK;
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}
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static rt_err_t rt_serial_close(rt_device_t dev)
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{
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struct stm32_serial_device* uart;
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RT_ASSERT(dev != RT_NULL);
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uart = (struct stm32_serial_device*)dev->private;
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if (dev->flag & RT_DEVICE_FLAG_DMA_RX)
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@@ -182,7 +182,7 @@ static rt_size_t rt_serial_read (rt_device_t dev, rt_off_t pos, void* buffer, rt
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rt_uint8_t* ptr;
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rt_err_t err_code;
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struct stm32_serial_device* uart;
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ptr = buffer;
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err_code = RT_EOK;
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uart = (struct stm32_serial_device*)dev->private;
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@@ -217,7 +217,7 @@ static rt_size_t rt_serial_read (rt_device_t dev, rt_off_t pos, void* buffer, rt
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||||
/* set error code */
|
||||
err_code = -RT_EEMPTY;
|
||||
}
|
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else
|
||||
else
|
||||
{
|
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/* read data */
|
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while ((rt_uint32_t)ptr - (rt_uint32_t)buffer < size)
|
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@@ -225,16 +225,16 @@ static rt_size_t rt_serial_read (rt_device_t dev, rt_off_t pos, void* buffer, rt
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/* read buffer */
|
||||
*ptr ++ = uart->dma_rx->
|
||||
rx_buffer[uart->dma_rx->read_descriptor][uart->dma_rx->read_index];
|
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|
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/* move to next position */
|
||||
uart->dma_rx->read_index ++;
|
||||
|
||||
|
||||
/* wrap read index */
|
||||
if (uart->dma_rx->read_index >= UART_DMA_RX_BUFFER_SIZE)
|
||||
{
|
||||
/* wrap read index */
|
||||
uart->dma_rx->read_index = 0;
|
||||
|
||||
|
||||
/* move to next read descriptor */
|
||||
uart->dma_rx->read_descriptor ++;
|
||||
/* wrap read descriptor */
|
||||
@@ -252,7 +252,7 @@ static rt_size_t rt_serial_read (rt_device_t dev, rt_off_t pos, void* buffer, rt
|
||||
rt_hw_interrupt_enable(level);
|
||||
|
||||
/* re-enable DMA to receive */
|
||||
rt_serial_enable_dma(uart->dma_rx->dma_channel,
|
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rt_serial_enable_dma(uart->dma_rx->dma_channel,
|
||||
(rt_uint32_t)&(uart->dma_rx->rx_buffer[uart->dma_rx->save_descriptor][0]),
|
||||
UART_DMA_RX_BUFFER_SIZE);
|
||||
}
|
||||
@@ -286,11 +286,11 @@ static rt_size_t rt_serial_read (rt_device_t dev, rt_off_t pos, void* buffer, rt
|
||||
return (rt_uint32_t)ptr - (rt_uint32_t)buffer;
|
||||
}
|
||||
|
||||
static void rt_serial_enable_dma(DMA_Channel_TypeDef* dma_channel,
|
||||
static void rt_serial_enable_dma(DMA_Channel_TypeDef* dma_channel,
|
||||
rt_uint32_t address, rt_uint32_t size)
|
||||
{
|
||||
RT_ASSERT(dma_channel != RT_NULL);
|
||||
|
||||
|
||||
/* disable DMA */
|
||||
DMA_Cmd(dma_channel, DISABLE);
|
||||
|
||||
@@ -298,7 +298,7 @@ static void rt_serial_enable_dma(DMA_Channel_TypeDef* dma_channel,
|
||||
dma_channel->CMAR = address;
|
||||
/* set size */
|
||||
dma_channel->CNDTR = size;
|
||||
|
||||
|
||||
/* enable DMA */
|
||||
DMA_Cmd(dma_channel, ENABLE);
|
||||
}
|
||||
@@ -308,7 +308,7 @@ static rt_size_t rt_serial_write (rt_device_t dev, rt_off_t pos, const void* buf
|
||||
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->private;
|
||||
@@ -320,17 +320,17 @@ static rt_size_t rt_serial_write (rt_device_t dev, rt_off_t pos, const void* buf
|
||||
{
|
||||
/* save on tx buffer */
|
||||
uart->int_tx->tx_buffer[uart->int_tx->save_index] = *ptr++;
|
||||
|
||||
|
||||
-- size;
|
||||
|
||||
/* move to next position */
|
||||
uart->int_tx->save_index ++;
|
||||
|
||||
|
||||
/* wrap save index */
|
||||
if (uart->int_tx->save_index >= UART_TX_BUFFER_SIZE)
|
||||
uart->int_tx->save_index = 0;
|
||||
}
|
||||
|
||||
|
||||
/* set error code */
|
||||
if (size > 0)
|
||||
err_code = -RT_EFULL;
|
||||
@@ -338,9 +338,9 @@ static rt_size_t rt_serial_write (rt_device_t dev, rt_off_t pos, const void* buf
|
||||
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* data_node =
|
||||
(struct stm32_serial_data_node*) rt_malloc (sizeof(struct stm32_serial_data_node));
|
||||
if (data_node == RT_NULL)
|
||||
{
|
||||
@@ -350,14 +350,14 @@ static rt_size_t rt_serial_write (rt_device_t dev, rt_off_t pos, const void* buf
|
||||
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();
|
||||
|
||||
@@ -365,15 +365,15 @@ static rt_size_t rt_serial_write (rt_device_t dev, rt_off_t pos, const void* buf
|
||||
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,
|
||||
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);
|
||||
}
|
||||
|
||||
@@ -389,18 +389,18 @@ static rt_size_t rt_serial_write (rt_device_t dev, rt_off_t pos, const void* buf
|
||||
rt_serial_putc(dev, *ptr);
|
||||
++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->private;
|
||||
@@ -411,19 +411,19 @@ static rt_err_t rt_serial_control (rt_device_t dev, rt_uint8_t cmd, void *args)
|
||||
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
|
||||
* 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)
|
||||
@@ -449,10 +449,10 @@ rt_err_t rt_hw_serial_register(rt_device_t device, const char* name, rt_uint32_t
|
||||
void rt_hw_serial_isr(rt_device_t device)
|
||||
{
|
||||
struct stm32_serial_device* uart = (struct stm32_serial_device*) device->private;
|
||||
|
||||
|
||||
if(USART_GetITStatus(uart->uart_device, USART_IT_RXNE) != RESET)
|
||||
{
|
||||
/* interrupt mode receive */
|
||||
/* interrupt mode receive */
|
||||
RT_ASSERT(device->flag & RT_DEVICE_FLAG_INT_RX);
|
||||
|
||||
/* save on rx buffer */
|
||||
@@ -460,7 +460,7 @@ void rt_hw_serial_isr(rt_device_t device)
|
||||
{
|
||||
rt_serial_savechar(uart, uart->uart_device->DR & 0xff);
|
||||
}
|
||||
|
||||
|
||||
/* clear interrupt */
|
||||
USART_ClearITPendingBit(uart->uart_device, USART_IT_RXNE);
|
||||
|
||||
@@ -468,7 +468,7 @@ void rt_hw_serial_isr(rt_device_t device)
|
||||
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 :
|
||||
@@ -477,12 +477,12 @@ void rt_hw_serial_isr(rt_device_t device)
|
||||
device->rx_indicate(device, rx_length);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
if (USART_GetITStatus(uart->uart_device, USART_IT_TC) != RESET)
|
||||
{
|
||||
/* interrupt mode transmission */
|
||||
RT_ASSERT(device->flag & RT_DEVICE_FLAG_INT_TX);
|
||||
|
||||
|
||||
/* transmission completed */
|
||||
uart->int_tx->write_index ++;
|
||||
if (uart->int_tx->write_index >= UART_TX_BUFFER_SIZE)
|
||||
@@ -490,7 +490,7 @@ void rt_hw_serial_isr(rt_device_t device)
|
||||
|
||||
/* clear interrupt */
|
||||
USART_ClearITPendingBit(uart->uart_device, USART_IT_TC);
|
||||
|
||||
|
||||
/* start next transmission */
|
||||
if (uart->int_tx->write_index <
|
||||
uart->int_tx->save_index)
|
||||
@@ -501,33 +501,33 @@ void rt_hw_serial_isr(rt_device_t device)
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
/*
|
||||
* ISR for DMA mode Rx
|
||||
*/
|
||||
void rt_hw_serial_dma_rx_isr(rt_device_t device)
|
||||
{
|
||||
rt_uint32_t next_descriptor;
|
||||
struct stm32_serial_device* uart = (struct stm32_serial_device*) device->private;
|
||||
|
||||
/* DMA mode receive */
|
||||
|
||||
/* DMA mode receive */
|
||||
RT_ASSERT(device->flag & RT_DEVICE_FLAG_DMA_RX);
|
||||
|
||||
|
||||
/* invoke callback */
|
||||
if (device->rx_indicate != RT_NULL)
|
||||
device->rx_indicate(device, UART_DMA_RX_BUFFER_SIZE);
|
||||
|
||||
next_descriptor = uart->dma_rx->save_descriptor;
|
||||
|
||||
|
||||
/* move to next descriptor */
|
||||
next_descriptor ++;
|
||||
if (next_descriptor >= UART_DMA_RX_DESCRIPTOR)
|
||||
next_descriptor = 0;
|
||||
|
||||
|
||||
if (next_descriptor != uart->dma_rx->read_descriptor)
|
||||
{
|
||||
uart->dma_rx->save_descriptor = next_descriptor;
|
||||
/* enable next DMA */
|
||||
rt_serial_enable_dma(uart->dma_rx->dma_channel,
|
||||
rt_serial_enable_dma(uart->dma_rx->dma_channel,
|
||||
(rt_uint32_t)&(uart->dma_rx->rx_buffer[uart->dma_rx->save_descriptor][0]),
|
||||
UART_DMA_RX_BUFFER_SIZE);
|
||||
}
|
||||
@@ -539,7 +539,7 @@ void rt_hw_serial_dma_rx_isr(rt_device_t device)
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
/*
|
||||
* ISR for DMA mode Tx
|
||||
*/
|
||||
void rt_hw_serial_dma_tx_isr(rt_device_t device)
|
||||
@@ -548,20 +548,20 @@ void rt_hw_serial_dma_tx_isr(rt_device_t device)
|
||||
struct stm32_serial_data_node* data_node;
|
||||
struct stm32_serial_device* uart = (struct stm32_serial_device*) device->private;
|
||||
|
||||
/* DMA mode receive */
|
||||
/* 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 tail */
|
||||
uart->dma_tx->list_tail = data_node->prev;
|
||||
if (uart->dma_tx->list_tail == RT_NULL)
|
||||
@@ -569,10 +569,10 @@ void rt_hw_serial_dma_tx_isr(rt_device_t device)
|
||||
|
||||
/* enable interrupt */
|
||||
rt_hw_interrupt_enable(level);
|
||||
|
||||
|
||||
/* free data node memory */
|
||||
rt_free(data_node);
|
||||
|
||||
|
||||
if (uart->dma_tx->list_tail != RT_NULL)
|
||||
{
|
||||
/* transmit next data node */
|
||||
|
||||
@@ -1,3 +1,16 @@
|
||||
/*
|
||||
* File : serial.h
|
||||
* 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
|
||||
* 2009-01-05 Bernard first version
|
||||
*/
|
||||
#ifndef __RT_HW_SERIAL_H__
|
||||
#define __RT_HW_SERIAL_H__
|
||||
|
||||
|
||||
@@ -1,11 +1,11 @@
|
||||
/*
|
||||
* File : stack.c
|
||||
* This file is part of RT-Thread RTOS
|
||||
* COPYRIGHT (C) 2006, RT-Thread Development Team
|
||||
* 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://openlab.rt-thread.com/license/LICENSE
|
||||
* http://www.rt-thread.org/license/LICENSE
|
||||
*
|
||||
* Change Logs:
|
||||
* Date Author Notes
|
||||
|
||||
Reference in New Issue
Block a user