Mirror/betaflight
1
0
Fork 0
mirror of https://github.com/betaflight/betaflight.git synced 2025-07-24 08:45:36 +03:00
Code Issues Wiki Activity

Adding DMA ownership for ADC, LED STRIP, USART and MOTOR

Browse source
This commit is contained in:
blckmn 2016-11-08 13:47:37 +11:00
parent 9ec798a6f5
commit 8dc3bee80d
23 changed files with 212 additions and 90 deletions
Download patch file Download diff file Expand all files Collapse all files

49
src/main/drivers/dma_stm32f7xx.c
View file

@ -23,11 +23,12 @@
#include "drivers/nvic.h"
#include "drivers/dma.h"
#include "resource.h"
/*
* DMA descriptors.
*/
static dmaChannelDescriptor_t dmaDescriptors[] = {
static dmaChannelDescriptor_t dmaDescriptors[DMA_MAX_DESCRIPTORS] = {
DEFINE_DMA_CHANNEL(DMA1, DMA1_Stream0, 0, DMA1_Stream0_IRQn, RCC_AHB1ENR_DMA1EN),
DEFINE_DMA_CHANNEL(DMA1, DMA1_Stream1, 6, DMA1_Stream1_IRQn, RCC_AHB1ENR_DMA1EN),
DEFINE_DMA_CHANNEL(DMA1, DMA1_Stream2, 16, DMA1_Stream2_IRQn, RCC_AHB1ENR_DMA1EN),
@ -68,30 +69,50 @@ DEFINE_DMA_IRQ_HANDLER(2, 5, DMA2_ST5_HANDLER)
DEFINE_DMA_IRQ_HANDLER(2, 6, DMA2_ST6_HANDLER)
DEFINE_DMA_IRQ_HANDLER(2, 7, DMA2_ST7_HANDLER)
void dmaInit(void)
static void enableDmaClock(uint32_t rcc)
{
// TODO: Do we need this?
}
void dmaSetHandler(dmaHandlerIdentifier_e identifier, dmaCallbackHandlerFuncPtr callback, uint32_t priority, uint32_t userParam)
{
//clock
//RCC_AHB1PeriphClockCmd(dmaDescriptors[identifier].rcc, ENABLE);
do {
__IO uint32_t tmpreg;
SET_BIT(RCC->AHB1ENR, dmaDescriptors[identifier].rcc);
SET_BIT(RCC->AHB1ENR, rcc);
/* Delay after an RCC peripheral clock enabling */
tmpreg = READ_BIT(RCC->AHB1ENR, dmaDescriptors[identifier].rcc);
tmpreg = READ_BIT(RCC->AHB1ENR, rcc);
UNUSED(tmpreg);
} while(0);
}
void dmaInit(dmaIdentifier_e identifier, resourceOwner_e owner, uint8_t resourceIndex)
{
enableDmaClock(dmaDescriptors[identifier].rcc);
dmaDescriptors[identifier].owner = owner;
dmaDescriptors[identifier].resourceIndex = resourceIndex;
}
void dmaSetHandler(dmaIdentifier_e identifier, dmaCallbackHandlerFuncPtr callback, uint32_t priority, uint32_t userParam)
{
enableDmaClock(dmaDescriptors[identifier].rcc);
dmaDescriptors[identifier].irqHandlerCallback = callback;
dmaDescriptors[identifier].userParam = userParam;
HAL_NVIC_SetPriority(dmaDescriptors[identifier].irqN, NVIC_PRIORITY_BASE(priority), NVIC_PRIORITY_SUB(priority));
HAL_NVIC_EnableIRQ(dmaDescriptors[identifier].irqN);
}
resourceOwner_e dmaGetOwner(dmaIdentifier_e identifier)
{
return dmaDescriptors[identifier].owner;
}
uint8_t dmaGetResourceIndex(dmaIdentifier_e identifier)
{
return dmaDescriptors[identifier].resourceIndex;
}
dmaIdentifier_e dmaGetIdentifier(const DMA_Stream_TypeDef* stream)
{
for (int i = 0; i < DMA_MAX_DESCRIPTORS; i++) {
if (dmaDescriptors[i].stream == stream) {
return i;
}
}
return 0;
}