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usart_handler: DMA based memory copy

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Attila Body 2019-10-01 14:49:10 +02:00
parent e8ab90c2b3
commit ecd6c1d5d6
13 changed files with 367 additions and 408 deletions
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@ -1,394 +1,200 @@
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<entry flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name="Startup"/>
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</storageModule>
</cproject>

1
Inc/stm32f4xx_it.h
View file

@ -69,6 +69,7 @@ void USART3_IRQHandler(void);
void DMA1_Stream7_IRQHandler(void);
void UART4_IRQHandler(void);
void UART5_IRQHandler(void);
void DMA2_Stream0_IRQHandler(void);
void DMA2_Stream1_IRQHandler(void);
void DMA2_Stream2_IRQHandler(void);
void DMA2_Stream4_IRQHandler(void);

47
Src/dma.c
View file

@ -61,13 +61,13 @@ void MX_DMA_Init(void)
LL_DMA_SetPeriphIncMode(DMA2, LL_DMA_STREAM_4, LL_DMA_PERIPH_INCREMENT);
/* Set memory increment mode */
LL_DMA_SetMemoryIncMode(DMA2, LL_DMA_STREAM_4, LL_DMA_MEMORY_INCREMENT);
LL_DMA_SetMemoryIncMode(DMA2, LL_DMA_STREAM_4, LL_DMA_MEMORY_NOINCREMENT);
/* Set peripheral data width */
LL_DMA_SetPeriphSize(DMA2, LL_DMA_STREAM_4, LL_DMA_PDATAALIGN_BYTE);
LL_DMA_SetPeriphSize(DMA2, LL_DMA_STREAM_4, LL_DMA_PDATAALIGN_WORD);
/* Set memory data width */
LL_DMA_SetMemorySize(DMA2, LL_DMA_STREAM_4, LL_DMA_MDATAALIGN_BYTE);
LL_DMA_SetMemorySize(DMA2, LL_DMA_STREAM_4, LL_DMA_MDATAALIGN_WORD);
/* Enable FIFO mode */
LL_DMA_EnableFifoMode(DMA2, LL_DMA_STREAM_4);
@ -81,6 +81,44 @@ void MX_DMA_Init(void)
/* Set peripheral burst size */
LL_DMA_SetPeriphBurstxfer(DMA2, LL_DMA_STREAM_4, LL_DMA_PBURST_SINGLE);
/* Configure DMA request MEMTOMEM_DMA2_Stream0 */
/* Select channel */
LL_DMA_SetChannelSelection(DMA2, LL_DMA_STREAM_0, LL_DMA_CHANNEL_0);
/* Set transfer direction */
LL_DMA_SetDataTransferDirection(DMA2, LL_DMA_STREAM_0, LL_DMA_DIRECTION_MEMORY_TO_MEMORY);
/* Set priority level */
LL_DMA_SetStreamPriorityLevel(DMA2, LL_DMA_STREAM_0, LL_DMA_PRIORITY_LOW);
/* Set DMA mode */
LL_DMA_SetMode(DMA2, LL_DMA_STREAM_0, LL_DMA_MODE_NORMAL);
/* Set peripheral increment mode */
LL_DMA_SetPeriphIncMode(DMA2, LL_DMA_STREAM_0, LL_DMA_PERIPH_INCREMENT);
/* Set memory increment mode */
LL_DMA_SetMemoryIncMode(DMA2, LL_DMA_STREAM_0, LL_DMA_MEMORY_INCREMENT);
/* Set peripheral data width */
LL_DMA_SetPeriphSize(DMA2, LL_DMA_STREAM_0, LL_DMA_PDATAALIGN_WORD);
/* Set memory data width */
LL_DMA_SetMemorySize(DMA2, LL_DMA_STREAM_0, LL_DMA_MDATAALIGN_WORD);
/* Enable FIFO mode */
LL_DMA_EnableFifoMode(DMA2, LL_DMA_STREAM_0);
/* Set FIFO threshold */
LL_DMA_SetFIFOThreshold(DMA2, LL_DMA_STREAM_0, LL_DMA_FIFOTHRESHOLD_FULL);
/* Set memory burst size */
LL_DMA_SetMemoryBurstxfer(DMA2, LL_DMA_STREAM_0, LL_DMA_MBURST_SINGLE);
/* Set peripheral burst size */
LL_DMA_SetPeriphBurstxfer(DMA2, LL_DMA_STREAM_0, LL_DMA_PBURST_SINGLE);
/* DMA interrupt init */
/* DMA1_Stream0_IRQn interrupt configuration */
NVIC_SetPriority(DMA1_Stream0_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
@ -106,6 +144,9 @@ void MX_DMA_Init(void)
/* DMA1_Stream7_IRQn interrupt configuration */
NVIC_SetPriority(DMA1_Stream7_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
NVIC_EnableIRQ(DMA1_Stream7_IRQn);
/* DMA2_Stream0_IRQn interrupt configuration */
NVIC_SetPriority(DMA2_Stream0_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
NVIC_EnableIRQ(DMA2_Stream0_IRQn);
/* DMA2_Stream1_IRQn interrupt configuration */
NVIC_SetPriority(DMA2_Stream1_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
NVIC_EnableIRQ(DMA2_Stream1_IRQn);

15
Src/stm32f4xx_it.c
View file

@ -26,6 +26,7 @@
#include "usart_handler.h"
#include "crc_handler.h"
#include "console_handler.h"
#include "memcpy_dma.h"
#include "globals.h"
#include "diag.h"
@ -380,6 +381,20 @@ void UART5_IRQHandler(void)
/* USER CODE END UART5_IRQn 1 */
}
/**
* @brief This function handles DMA2 stream0 global interrupt.
*/
void DMA2_Stream0_IRQHandler(void)
{
/* USER CODE BEGIN DMA2_Stream0_IRQn 0 */
HandleMemcpyDmaIrq();
/* USER CODE END DMA2_Stream0_IRQn 0 */
/* USER CODE BEGIN DMA2_Stream0_IRQn 1 */
/* USER CODE END DMA2_Stream0_IRQn 1 */
}
/**
* @brief This function handles DMA2 stream1 global interrupt.
*/

21
app/application.c
View file

@ -1,4 +1,5 @@
#include <string.h>
#include <stdlib.h>
#include "application.h"
#include "globals.h"
#include "strutil.h"
@ -6,6 +7,7 @@
#include "usart_handler.h"
#include "crc_handler.h"
#include "console_handler.h"
#include "memcpy_dma.h"
#define PACKAGE_DELAY_MS 0
#define STATS_DELAY_MS 1000
@ -21,7 +23,9 @@
void MainLoop()
{
static uint8_t const text2Send[] = "------------------------------------------------\r\n| Megszentsegtelenithetetlensegeskedeseitekert |\r\n------------------------------------------------\r\n";
uint8_t const text2Send[] __attribute__((aligned(4))) =
"Megszentsegtelenithetetlensegeskedeseitekert\r\n"
"--------------------------------------------\r\n\0\0\0";
struct initdata_t {
USART_TypeDef* uart;
@ -40,6 +44,14 @@ void MainLoop()
uint32_t prevSentTick = 0;
uint8_t statId = 0;
uint32_t tmp = sizeof(text2Send) - 1;
uint32_t randmask = 0x80000000;
do
if(randmask & tmp)
break;
while((randmask = randmask >> 1));
randmask -= 1;
for(uint16_t idx = 0; idx < sizeof(g_uartStatuses) / sizeof(g_uartStatuses[0]); ++idx) {
struct initdata_t const *id = &initdata[idx];
InitUartStatus(&g_uartStatuses[idx], id->uart, id->dma, id->stream_rx, id->stream_tx,
@ -49,9 +61,10 @@ void MainLoop()
InitCrcStatus(&g_crcStatus, DMA2, LL_DMA_STREAM_4);
InitDmaInfo(&g_ConsoleTxDmaInfo, DMA1, LL_DMA_STREAM_4);
InitDmaInfo(&g_ConsoleTxDmaInfo, CONSOLE_DMA_ENGINE, CONSOLE_TX_DMA_STREAM);
LL_DMA_EnableIT_TC(g_ConsoleTxDmaInfo.dma, g_ConsoleTxDmaInfo.stream);
LL_DMA_EnableIT_TE(g_ConsoleTxDmaInfo.dma, g_ConsoleTxDmaInfo.stream);
InitMemcpyDma(MEMCPY_DMA_ENGINE, MEMCPY_DMA_STREAM);
lastStatsTick = HAL_GetTick();
@ -66,7 +79,7 @@ void MainLoop()
for(uint16_t idx = 0; idx < sizeof(g_uartStatuses) / sizeof(g_uartStatuses[0]); ++idx) {
if(!g_uartStatuses[idx].txBuffer.busy && send) {
PostPacket(&g_uartStatuses[idx], NULL, sizeof(text2Send) -1, &g_crcStatus);
PostPacket(&g_uartStatuses[idx], text2Send, sizeof(text2Send) - 1 - (rand() & randmask), &g_crcStatus);
}
for(uint16_t rIdx = 0; rIdx < 2; ++rIdx)
if(g_uartStatuses[idx].rxBuffers[rIdx].busy || g_uartStatuses[idx].rxBuffers[rIdx].error)

9
app/config.h
View file

@ -16,4 +16,13 @@
#define USART5_OFFSET 3
#define USART6_OFFSET 4
#define CONSOLE_DMA_ENGINE DMA1
#define CONSOLE_TX_DMA_STREAM LL_DMA_STREAM_4
#define CRC_DMA_ENGINE DMA2
#define CRC_DMA_STREAM LL_DMA_STREAM_4
#define MEMCPY_DMA_ENGINE DMA2
#define MEMCPY_DMA_STREAM LL_DMA_STREAM_0
#endif /* CONFIG_H_ */

1
app/diag.h
View file

@ -21,6 +21,7 @@ if(x) { \
#define DIAG_CRC_CALC_END() LL_GPIO_ResetOutputPin(DIAG0_GPIO_Port, DIAG0_Pin)//; LL_GPIO_TogglePin(DIAG3_GPIO_Port, DIAG3_Pin)
#define DIAG_INTERRUPT_IN() LL_GPIO_SetOutputPin(DIAG1_GPIO_Port, DIAG1_Pin)
#define DIAG_INTERRUPT_OUT() LL_GPIO_ResetOutputPin(DIAG1_GPIO_Port, DIAG1_Pin)
#define DIAG_ERROR_EVENT() LL_GPIO_TogglePin(DIAG2_GPIO_Port, DIAG2_Pin)
#else // _ENABLE_DIAG

2
app/stats.h
View file

@ -7,6 +7,7 @@
#ifndef STATS_H_
#define STATS_H_
#include "diag.h"
#ifndef DIAG_ERROR_EVENT
# define DIAG_ERROR_EVENT()
@ -41,6 +42,7 @@ static inline void StatsIncPayloadError(STATS *s, uint32_t pep1, uint32_t pep2)
s->pep2 = pep2;
}
static inline void StatsIncDmaError(STATS *s) {
DIAG_ERROR_EVENT();
++s->dmaError;
}
static inline void StatsIncRcvd(STATS *s) {

23
f407ve_hs_uart.ioc
View file

@ -4,19 +4,33 @@ Dma.MEMTOMEM.12.FIFOMode=DMA_FIFOMODE_ENABLE
Dma.MEMTOMEM.12.FIFOThreshold=DMA_FIFO_THRESHOLD_FULL
Dma.MEMTOMEM.12.Instance=DMA2_Stream4
Dma.MEMTOMEM.12.MemBurst=DMA_MBURST_SINGLE
Dma.MEMTOMEM.12.MemDataAlignment=DMA_MDATAALIGN_BYTE
Dma.MEMTOMEM.12.MemInc=DMA_MINC_ENABLE
Dma.MEMTOMEM.12.MemDataAlignment=DMA_MDATAALIGN_WORD
Dma.MEMTOMEM.12.MemInc=DMA_MINC_DISABLE
Dma.MEMTOMEM.12.Mode=DMA_NORMAL
Dma.MEMTOMEM.12.PeriphBurst=DMA_PBURST_SINGLE
Dma.MEMTOMEM.12.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
Dma.MEMTOMEM.12.PeriphDataAlignment=DMA_PDATAALIGN_WORD
Dma.MEMTOMEM.12.PeriphInc=DMA_PINC_ENABLE
Dma.MEMTOMEM.12.Priority=DMA_PRIORITY_LOW
Dma.MEMTOMEM.12.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode,FIFOThreshold,MemBurst,PeriphBurst
Dma.MEMTOMEM.13.Direction=DMA_MEMORY_TO_MEMORY
Dma.MEMTOMEM.13.FIFOMode=DMA_FIFOMODE_ENABLE
Dma.MEMTOMEM.13.FIFOThreshold=DMA_FIFO_THRESHOLD_FULL
Dma.MEMTOMEM.13.Instance=DMA2_Stream0
Dma.MEMTOMEM.13.MemBurst=DMA_MBURST_SINGLE
Dma.MEMTOMEM.13.MemDataAlignment=DMA_MDATAALIGN_WORD
Dma.MEMTOMEM.13.MemInc=DMA_MINC_ENABLE
Dma.MEMTOMEM.13.Mode=DMA_NORMAL
Dma.MEMTOMEM.13.PeriphBurst=DMA_PBURST_SINGLE
Dma.MEMTOMEM.13.PeriphDataAlignment=DMA_PDATAALIGN_WORD
Dma.MEMTOMEM.13.PeriphInc=DMA_PINC_ENABLE
Dma.MEMTOMEM.13.Priority=DMA_PRIORITY_LOW
Dma.MEMTOMEM.13.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode,FIFOThreshold,MemBurst,PeriphBurst
Dma.Request0=UART4_RX
Dma.Request1=UART4_TX
Dma.Request10=USART6_RX
Dma.Request11=USART6_TX
Dma.Request12=MEMTOMEM
Dma.Request13=MEMTOMEM
Dma.Request2=USART3_RX
Dma.Request3=USART3_TX
Dma.Request4=UART5_RX
@ -25,7 +39,7 @@ Dma.Request6=USART2_RX
Dma.Request7=USART2_TX
Dma.Request8=USART1_RX
Dma.Request9=USART1_TX
Dma.RequestsNb=13
Dma.RequestsNb=14
Dma.UART4_RX.0.Direction=DMA_PERIPH_TO_MEMORY
Dma.UART4_RX.0.FIFOMode=DMA_FIFOMODE_DISABLE
Dma.UART4_RX.0.Instance=DMA1_Stream2
@ -209,6 +223,7 @@ NVIC.DMA1_Stream4_IRQn=true\:0\:0\:false\:false\:true\:false\:true
NVIC.DMA1_Stream5_IRQn=true\:0\:0\:false\:false\:true\:false\:true
NVIC.DMA1_Stream6_IRQn=true\:0\:0\:false\:false\:true\:false\:true
NVIC.DMA1_Stream7_IRQn=true\:0\:0\:false\:false\:true\:false\:true
NVIC.DMA2_Stream0_IRQn=true\:0\:0\:false\:false\:true\:true\:true
NVIC.DMA2_Stream1_IRQn=true\:0\:0\:false\:false\:true\:false\:true
NVIC.DMA2_Stream2_IRQn=true\:0\:0\:false\:false\:true\:false\:true
NVIC.DMA2_Stream4_IRQn=true\:0\:0\:false\:false\:true\:true\:true

4
lib/console_handler.c
View file

@ -16,10 +16,6 @@ void HandleConsoleUsartTxDmaIrq(DMAINFO *info, USART_TypeDef *usart) // debug us
LL_USART_EnableIT_TC(usart);
LL_DMA_DisableStream(info->dma, info->stream);
}
else if(*info->isReg & info->htMask)
*info->ifcReg = info->htMask;
else if(*info->isReg & info->teMask)
*info->ifcReg = info->teMask;
}
void HandleConsoleUsartIrq(USART_TypeDef *usart)

39
lib/memcpy_dma.c Normal file
View file

@ -0,0 +1,39 @@
/*
* memcpy_dma.c
*
* Created on: Oct 1, 2019
* Author: abody
*/
#include "memcpy_dma.h"
#include "dma_helper.h"
volatile uint8_t g_memcpyDmaBusy = 0;
static DMAINFO g_memcpyDmaInfo;
void InitMemcpyDma(DMA_TypeDef *dma, uint32_t stream)
{
InitDmaInfo(&g_memcpyDmaInfo, dma, stream);
LL_DMA_EnableIT_TC(dma, stream);
}
void * MemcpyDma(void *dst, void const *src, size_t length)
{
LL_DMA_SetM2MSrcAddress(g_memcpyDmaInfo.dma, g_memcpyDmaInfo.stream, (uint32_t)src);
LL_DMA_SetM2MDstAddress(g_memcpyDmaInfo.dma, g_memcpyDmaInfo.stream, (uint32_t)dst);
LL_DMA_SetDataLength(g_memcpyDmaInfo.dma, g_memcpyDmaInfo.stream, (length+3)/4 );
g_memcpyDmaBusy = 1;
//DIAG_CRC_CALC_START();
LL_DMA_EnableStream(g_memcpyDmaInfo.dma, g_memcpyDmaInfo.stream);
while(g_memcpyDmaBusy);
return dst;
}
void HandleMemcpyDmaIrq()
{
if(*g_memcpyDmaInfo.isReg & g_memcpyDmaInfo.tcMask) { // DMA transfer complete
*g_memcpyDmaInfo.ifcReg = g_memcpyDmaInfo.tcMask;
LL_DMA_DisableStream(g_memcpyDmaInfo.dma, g_memcpyDmaInfo.stream);
g_memcpyDmaBusy = 0;
}
}

20
lib/memcpy_dma.h Normal file
View file

@ -0,0 +1,20 @@
/*
* memcpy_dma.h
*
* Created on: Oct 1, 2019
* Author: abody
*/
#ifndef MEMCPY_DMA_H_
#define MEMCPY_DMA_H_
#include <inttypes.h>
#include "dma.h"
//#include "dma_helper.h"
//extern DMAINFO g_memcpyDmaInfo;
void InitMemcpyDma(DMA_TypeDef *dma, uint32_t stream);
void * MemcpyDma(void *dst, void const *src, size_t length);
void HandleMemcpyDmaIrq();
#endif /* MEMCPY_DMA_H_ */

5
lib/usart_handler.c
View file

@ -11,6 +11,7 @@
#include "usart_handler.h"
#include "dma_helper.h"
#include "crc_handler.h"
#include "memcpy_dma.h"
#ifndef DIAG_RX_BUFFER_SWITCH
# define DIAG_RX_BUFFER_SWITCH(x)
@ -73,7 +74,7 @@ uint8_t PostPacket(UARTSTATUS *status, uint8_t const *payload, uint16_t length,
BuildHeader(&status->txBuffer, status->txSerial++, length);
uint16_t payloadLength = (length+3) & 0xfffc; // round up to 4
if(payload)
memcpy(status->txBuffer.packet.payload, payload, length);
MemcpyDma(status->txBuffer.packet.payload, payload, length);
status->txBuffer.requestedLength = sizeof(UARTPACKETHEADER) + payloadLength + sizeof(uint32_t); // +4 for the hash
status->txBuffer.busy = 1;
status->txBuffer.error = 0;
@ -118,7 +119,7 @@ void ConsumePacket(UARTSTATUS *status, uint8_t packetIndex, struct crcstatus_t *
void SetupTransmit(USART_TypeDef *uart, DMA_TypeDef* dma, uint32_t stream, void *buffer, uint32_t length)
{
LL_DMA_ConfigAddresses(dma, stream, (uint32_t)buffer, LL_USART_DMA_GetRegAddr(uart),LL_DMA_DIRECTION_MEMORY_TO_PERIPH);
LL_DMA_ConfigAddresses(dma, stream, (uint32_t)buffer, LL_USART_DMA_GetRegAddr(uart), LL_DMA_DIRECTION_MEMORY_TO_PERIPH);
LL_DMA_SetDataLength(dma, stream, length);
LL_USART_EnableDMAReq_TX(uart);
LL_DMA_EnableStream(dma, stream);