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Made WS28xxStrip hardware (DMA & SPI instance) independent

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This commit is contained in:
Attila Body 2020-12-06 00:30:53 +01:00
parent 7672e157a0
commit cf41cd6af0
2 changed files with 31 additions and 25 deletions
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4
App/App.cpp
View file

@ -23,7 +23,7 @@
#include "WS28xxStrip.h"
#include "Sparkle.h"
WS28xxStrip<NUMPIXELS, SPIBUFFER_PIXELS> g_strip( { DEFAULT_COLOR } );
WS28xxStrip<NUMPIXELS, SPIBUFFER_PIXELS> g_strip( SPI1, DMA1, LL_DMA_CHANNEL_3, { DEFAULT_COLOR } );
Sparkle g_sparkles[NUMSPARKLES];
/* Definitions for StripFeeder */
@ -68,7 +68,7 @@ void StartSparkle( Sparkle &s )
extern "C" void DMA1_Channel3_IRQHandler(void)
{
LL_GPIO_TogglePin(GPIOA, LL_GPIO_PIN_0);
g_strip.SpiDmaIsr();
g_strip.HandleSpiDmaIrq();
LL_GPIO_TogglePin(GPIOA, LL_GPIO_PIN_0);
}

52
App/WS28xxStrip.h
View file

@ -17,31 +17,35 @@
#include <task.h>
#include <semphr.h>
#include <f1ll/dmahelper.h>
struct pixel_t {
uint8_t g;
uint8_t r;
uint8_t b;
};
extern "C" void DMA1_Channel3_IRQHandler(void);
template <uint16_t pixels, uint8_t spi_pixels> class WS28xxStrip {
public:
WS28xxStrip(pixel_t defcolor);
WS28xxStrip(SPI_TypeDef *spi, DMA_TypeDef *dma, uint32_t channel, pixel_t defcolor);
pixel_t& operator[](int16_t index);
friend void DMA1_Channel3_IRQHandler(void);
void Update();
static void RefillTaskEntry(void *param) { reinterpret_cast<WS28xxStrip<pixels, spi_pixels>*>(param)->RefillTask(); }
void HandleSpiDmaIrq();
private:
void SpiDmaIsr();
void RefillTask();
void Convert(uint8_t *src, uint8_t *dst, uint16_t src_size);
template<typename T> T Min(T a, T b) { return a < b ? a : b; }
SPI_TypeDef *m_spi;
f1ll::DmaHelper m_dma;
TaskHandle_t m_task_handle = nullptr;
static constexpr const unsigned int SPI_PIXEL_SIZE = sizeof(pixel_t) * 4;
@ -62,8 +66,10 @@ private:
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
template <uint16_t pixels, uint8_t spi_pixels> WS28xxStrip<pixels, spi_pixels>::WS28xxStrip(pixel_t defcolor)
: m_main_mutex(xSemaphoreCreateBinaryStatic(&m_main_mutex_buffer))
template <uint16_t pixels, uint8_t spi_pixels> WS28xxStrip<pixels, spi_pixels>::WS28xxStrip(SPI_TypeDef *spi, DMA_TypeDef *dma, uint32_t channel, pixel_t defcolor)
: m_spi(spi)
, m_dma(dma, channel)
, m_main_mutex(xSemaphoreCreateBinaryStatic(&m_main_mutex_buffer))
{
for(uint16_t p=0; p < pixels; ++p)
m_pixels[p] = defcolor;
@ -78,31 +84,31 @@ template <uint16_t pixels, uint8_t spi_pixels> pixel_t& WS28xxStrip<pixels, spi_
}
//////////////////////////////////////////////////////////////////////////////
template <uint16_t pixels, uint8_t spi_pixels> void WS28xxStrip<pixels, spi_pixels>::SpiDmaIsr()
template <uint16_t pixels, uint8_t spi_pixels> void WS28xxStrip<pixels, spi_pixels>::HandleSpiDmaIrq()
{
LL_GPIO_TogglePin(GPIOA, LL_GPIO_PIN_0);
BaseType_t woken;
if(LL_DMA_IsActiveFlag_TE3(DMA1)) {
LL_DMA_ClearFlag_TE3(DMA1);
if(*m_dma.GetIsReg() & m_dma.GetTeMask()) {
*m_dma.GetIfcReg() = m_dma.GetTeMask();
}
else if(LL_DMA_IsActiveFlag_HT3(DMA1) || LL_DMA_IsActiveFlag_TC3(DMA1))
else if(*m_dma.GetIsReg() & m_dma.GetHtMask() || *m_dma.GetIsReg() & m_dma.GetTcMask())
{
if(LL_DMA_IsActiveFlag_HT3(DMA1))
if(*m_dma.GetIsReg() & m_dma.GetHtMask())
{
LL_DMA_ClearFlag_HT3(DMA1);
*m_dma.GetIfcReg() = m_dma.GetHtMask();
m_buffer_in_transmit = 1;
if(m_endframe)
LL_DMA_SetMode(DMA1, LL_DMA_CHANNEL_3, LL_DMA_MODE_NORMAL);
LL_DMA_SetMode(m_dma.GetDma(), m_dma.GetChannel(), LL_DMA_MODE_NORMAL);
}
else if(LL_DMA_IsActiveFlag_TC3(DMA1))
else if(*m_dma.GetIsReg() & m_dma.GetTcMask())
{
LL_DMA_ClearFlag_TC3(DMA1);
*m_dma.GetIfcReg() = m_dma.GetTcMask();
m_buffer_in_transmit = 0;
if(m_endframe && m_endprev) {
LL_DMA_DisableChannel(DMA1, LL_DMA_CHANNEL_3);
LL_DMA_SetMode(DMA1, LL_DMA_CHANNEL_3, LL_DMA_MODE_CIRCULAR);
LL_DMA_DisableChannel(m_dma.GetDma(), m_dma.GetChannel());
LL_DMA_SetMode(m_dma.GetDma(), m_dma.GetChannel(), LL_DMA_MODE_CIRCULAR);
woken = pdFALSE;
xSemaphoreGiveFromISR(m_main_mutex, &woken);
portYIELD_FROM_ISR(woken);
@ -167,12 +173,12 @@ template <uint16_t pixels, uint8_t spi_pixels> void WS28xxStrip<pixels, spi_pixe
m_buffer_in_transmit = 0;
LL_DMA_ConfigAddresses(DMA1, LL_DMA_CHANNEL_3, (uint32_t)m_spi_buffer, LL_SPI_DMA_GetRegAddr(SPI1), LL_DMA_DIRECTION_MEMORY_TO_PERIPH);
LL_DMA_SetDataLength(DMA1, LL_DMA_CHANNEL_3, sizeof(m_spi_buffer));
LL_DMA_EnableChannel(DMA1, LL_DMA_CHANNEL_3);
LL_DMA_EnableIT_HT(DMA1, LL_DMA_CHANNEL_3);
LL_DMA_EnableIT_TC(DMA1, LL_DMA_CHANNEL_3);
LL_DMA_EnableIT_TE(DMA1, LL_DMA_CHANNEL_3);
LL_DMA_ConfigAddresses(m_dma.GetDma(), m_dma.GetChannel(), (uint32_t)m_spi_buffer, LL_SPI_DMA_GetRegAddr(m_spi), LL_DMA_DIRECTION_MEMORY_TO_PERIPH);
LL_DMA_SetDataLength(m_dma.GetDma(), m_dma.GetChannel(), sizeof(m_spi_buffer));
LL_DMA_EnableChannel(m_dma.GetDma(), m_dma.GetChannel());
LL_DMA_EnableIT_HT(m_dma.GetDma(), m_dma.GetChannel());
LL_DMA_EnableIT_TC(m_dma.GetDma(), m_dma.GetChannel());
LL_DMA_EnableIT_TE(m_dma.GetDma(), m_dma.GetChannel());
}
//////////////////////////////////////////////////////////////////////////////