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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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61
src/main/drivers/light_ws2811strip_stm32f30x.c
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@ -20,51 +20,54 @@
#include <platform.h>
#include "gpio.h"
#include "io.h"
#include "nvic.h"
#include "common/color.h"
#include "drivers/light_ws2811strip.h"
#include "dma.h"
#include "rcc.h"
#include "timer.h"
#ifndef WS2811_GPIO
#define WS2811_GPIO GPIOB
#define WS2811_GPIO_AHB_PERIPHERAL RCC_AHBPeriph_GPIOB
#define WS2811_GPIO_AF GPIO_AF_1
#define WS2811_PIN GPIO_Pin_8 // TIM16_CH1
#define WS2811_PIN_SOURCE GPIO_PinSource8
#ifdef LED_STRIP
#ifndef WS2811_PIN
#define WS2811_PIN PB8 // TIM16_CH1
#define WS2811_TIMER TIM16
#define WS2811_TIMER_APB2_PERIPHERAL RCC_APB2Periph_TIM16
#define WS2811_DMA_CHANNEL DMA1_Channel3
#define WS2811_IRQ DMA1_Channel3_IRQn
#define WS2811_DMA_TC_FLAG DMA1_FLAG_TC3
#define WS2811_DMA_HANDLER_IDENTIFER DMA1_CH3_HANDLER
#endif
static IO_t ws2811IO = IO_NONE;
bool ws2811Initialised = false;
void ws2811DMAHandler(DMA_Channel_TypeDef *channel)
{
if (DMA_GetFlagStatus(WS2811_DMA_TC_FLAG)) {
ws2811LedDataTransferInProgress = 0;
DMA_Cmd(channel, DISABLE);
DMA_ClearFlag(WS2811_DMA_TC_FLAG);
}
}
void ws2811LedStripHardwareInit(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
uint16_t prescalerValue;
RCC_AHBPeriphClockCmd(WS2811_GPIO_AHB_PERIPHERAL, ENABLE);
GPIO_PinAFConfig(WS2811_GPIO, WS2811_PIN_SOURCE, WS2811_GPIO_AF);
/* Configuration alternate function push-pull */
GPIO_StructInit(&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = WS2811_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(WS2811_GPIO, &GPIO_InitStructure);
RCC_APB2PeriphClockCmd(WS2811_TIMER_APB2_PERIPHERAL, ENABLE);
dmaSetHandler(WS2811_DMA_HANDLER_IDENTIFER, ws2811DMAHandler);
ws2811IO = IOGetByTag(IO_TAG(WS2811_PIN));
/* GPIOA Configuration: TIM5 Channel 1 as alternate function push-pull */
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));
RCC_ClockCmd(timerRCC(WS2811_TIMER), ENABLE);
/* Compute the prescaler value */
prescalerValue = (uint16_t) (SystemCoreClock / 24000000) - 1;
@ -122,16 +125,20 @@ void ws2811LedStripHardwareInit(void)
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
ws2811Initialised = true;
setStripColor(&hsv_white);
ws2811UpdateStrip();
}
void ws2811LedStripDMAEnable(void)
{
if (!ws2811Initialised)
return;
DMA_SetCurrDataCounter(WS2811_DMA_CHANNEL, WS2811_DMA_BUFFER_SIZE); // load number of bytes to be transferred
TIM_SetCounter(WS2811_TIMER, 0);
TIM_Cmd(WS2811_TIMER, ENABLE);
DMA_Cmd(WS2811_DMA_CHANNEL, ENABLE);
}
#endif