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Code Issues Wiki Activity

Update to LED STRIP to use new IO

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This commit is contained in:
blckmn 2016-07-02 14:38:04 +10:00
parent 830e839aa2
commit 924c891bf1
40 changed files with 277 additions and 296 deletions
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150
src/main/drivers/light_ws2811strip_stm32f4xx.c
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@ -22,64 +22,122 @@
#include "common/color.h"
#include "light_ws2811strip.h"
#include "dma.h"
#include "nvic.h"
#include "io.h"
#include "system.h"
#include "rcc.h"
#include "timer.h"
#ifdef LED_STRIP
#if !defined(WS2811_PIN)
#define WS2811_PIN PA0
#define WS2811_TIMER TIM5
#define WS2811_DMA_HANDLER_IDENTIFER DMA1_ST2_HANDLER
#define WS2811_DMA_STREAM DMA1_Stream2
#define WS2811_DMA_FLAG DMA_FLAG_TCIF2
#define WS2811_DMA_IT DMA_IT_TCIF2
#define WS2811_DMA_CHANNEL DMA_Channel_6
#define WS2811_DMA_IRQ DMA1_Stream2_IRQn
#define WS2811_TIMER_CHANNEL TIM_Channel_1
#endif
static IO_t ws2811IO = IO_NONE;
static uint16_t timDMASource = 0;
bool ws2811Initialised = false;
void ws2811DMAHandler(DMA_Stream_TypeDef *stream)
{
if (DMA_GetFlagStatus(stream, WS2811_DMA_FLAG)) {
ws2811LedDataTransferInProgress = 0;
DMA_ClearITPendingBit(stream, WS2811_DMA_IT);
DMA_Cmd(stream, DISABLE);
TIM_DMACmd(WS2811_TIMER, timDMASource, DISABLE);
}
}
void ws2811LedStripHardwareInit(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
uint16_t prescalerValue;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM5, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA1, ENABLE);
RCC_ClockCmd(timerRCC(WS2811_TIMER), ENABLE);
ws2811IO = IOGetByTag(IO_TAG(WS2811_PIN));
/* GPIOA Configuration: TIM5 Channel 1 as alternate function push-pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource0, GPIO_AF_TIM5);
IOInit(ws2811IO, OWNER_SYSTEM, RESOURCE_OUTPUT);
IOConfigGPIOAF(ws2811IO, IO_CONFIG(GPIO_Mode_AF, GPIO_Speed_50MHz, GPIO_OType_PP, GPIO_PuPd_UP), timerGPIOAF(WS2811_TIMER));
// Stop timer
TIM_Cmd(TIM5, DISABLE);
TIM_Cmd(WS2811_TIMER, DISABLE);
/* Compute the prescaler value */
prescalerValue = (uint16_t) (SystemCoreClock / 2 / 84000000) - 1;
prescalerValue = (uint16_t)(SystemCoreClock / 2 / 84000000) - 1;
/* Time base configuration */
TIM_TimeBaseStructure.TIM_Period = 104; // 800kHz
TIM_TimeBaseStructure.TIM_Prescaler = prescalerValue;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM5, &TIM_TimeBaseStructure);
TIM_TimeBaseInit(WS2811_TIMER, &TIM_TimeBaseStructure);
/* PWM1 Mode configuration: Channel1 */
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset;
TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Set;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCNPolarity_High;
TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Disable;
TIM_OCInitStructure.TIM_Pulse = 0;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OC1Init(TIM5, &TIM_OCInitStructure);
TIM_OC1PreloadConfig(TIM5, TIM_OCPreload_Enable);
uint32_t channelAddress = 0;
switch (WS2811_TIMER_CHANNEL)
{
case TIM_Channel_1:
TIM_OC1Init(WS2811_TIMER, &TIM_OCInitStructure);
timDMASource = TIM_DMA_CC1;
channelAddress = (uint32_t)(&WS2811_TIMER->CCR1);
TIM_OC1PreloadConfig(WS2811_TIMER, TIM_OCPreload_Enable);
break;
case TIM_Channel_2:
TIM_OC2Init(WS2811_TIMER, &TIM_OCInitStructure);
timDMASource = TIM_DMA_CC2;
channelAddress = (uint32_t)(&WS2811_TIMER->CCR2);
TIM_OC2PreloadConfig(WS2811_TIMER, TIM_OCPreload_Enable);
break;
case TIM_Channel_3:
TIM_OC3Init(WS2811_TIMER, &TIM_OCInitStructure);
timDMASource = TIM_DMA_CC3;
channelAddress = (uint32_t)(&WS2811_TIMER->CCR3);
TIM_OC3PreloadConfig(WS2811_TIMER, TIM_OCPreload_Enable);
break;
case TIM_Channel_4:
TIM_OC4Init(WS2811_TIMER, &TIM_OCInitStructure);
timDMASource = TIM_DMA_CC4;
channelAddress = (uint32_t)(&WS2811_TIMER->CCR4);
TIM_OC4PreloadConfig(WS2811_TIMER, TIM_OCPreload_Enable);
break;
}
TIM_CtrlPWMOutputs(WS2811_TIMER, ENABLE);
TIM_ARRPreloadConfig(WS2811_TIMER, ENABLE);
TIM_Cmd(TIM5, ENABLE);
TIM_CCxCmd(WS2811_TIMER, WS2811_TIMER_CHANNEL, TIM_CCx_Enable);
TIM_Cmd(WS2811_TIMER, ENABLE);
dmaSetHandler(WS2811_DMA_HANDLER_IDENTIFER, ws2811DMAHandler);
/* configure DMA */
/* DMA1 Channel Config */
DMA_Cmd(DMA1_Stream2, DISABLE); // disable DMA channel 6
DMA_DeInit(DMA1_Stream2);
DMA_Cmd(WS2811_DMA_STREAM, DISABLE);
DMA_DeInit(WS2811_DMA_STREAM);
DMA_StructInit(&DMA_InitStructure);
DMA_InitStructure.DMA_Channel = DMA_Channel_6;
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)&(TIM5->CCR1);
DMA_InitStructure.DMA_Channel = WS2811_DMA_CHANNEL;
DMA_InitStructure.DMA_PeripheralBaseAddr = channelAddress;
DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)ledStripDMABuffer;
DMA_InitStructure.DMA_DIR = DMA_DIR_MemoryToPeripheral;
DMA_InitStructure.DMA_BufferSize = WS2811_DMA_BUFFER_SIZE;
@ -93,38 +151,36 @@ void ws2811LedStripHardwareInit(void)
DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_1QuarterFull;
DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
DMA_Init(DMA1_Stream2, &DMA_InitStructure);
DMA_ITConfig(DMA1_Stream2, DMA_IT_TC, ENABLE);
DMA_ClearITPendingBit(DMA1_Stream2, DMA_IT_TCIF2); // clear DMA1 Channel 6 transfer complete flag
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA1, ENABLE);
DMA_Init(WS2811_DMA_STREAM, &DMA_InitStructure);
DMA_ITConfig(WS2811_DMA_STREAM, DMA_IT_TC, ENABLE);
DMA_ClearITPendingBit(WS2811_DMA_STREAM, WS2811_DMA_IT);
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_InitStructure.NVIC_IRQChannel = DMA1_Stream2_IRQn;
NVIC_InitStructure.NVIC_IRQChannel = WS2811_DMA_IRQ;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = NVIC_PRIORITY_BASE(NVIC_PRIO_WS2811_DMA);
NVIC_InitStructure.NVIC_IRQChannelSubPriority = NVIC_PRIORITY_SUB(NVIC_PRIO_WS2811_DMA);
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
ws2811Initialised = true;
setStripColor(&hsv_white);
ws2811UpdateStrip();
}
void DMA1_Stream2_IRQHandler(void)
{
if (DMA_GetFlagStatus(DMA1_Stream2, DMA_FLAG_TCIF2)) {
ws2811LedDataTransferInProgress = 0;
DMA_Cmd(DMA1_Stream2, DISABLE);
TIM_DMACmd(TIM5, TIM_DMA_CC1, DISABLE);
DMA_ClearITPendingBit(DMA1_Stream2, DMA_IT_TCIF2);
}
}
void ws2811LedStripDMAEnable(void)
{
DMA_SetCurrDataCounter(DMA1_Stream2, WS2811_DMA_BUFFER_SIZE); // load number of bytes to be transferred
TIM_SetCounter(TIM5, 0);
DMA_Cmd(DMA1_Stream2, ENABLE);
TIM_DMACmd(TIM5, TIM_DMA_CC1, ENABLE);
if (!ws2811Initialised)
return;
DMA_SetCurrDataCounter(WS2811_DMA_STREAM, WS2811_DMA_BUFFER_SIZE); // load number of bytes to be transferred
TIM_SetCounter(WS2811_TIMER, 0);
DMA_Cmd(WS2811_DMA_STREAM, ENABLE);
TIM_DMACmd(WS2811_TIMER, timDMASource, ENABLE);
}
#endif
#endif