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Initial preparation for cleaning up multiple files per MCU (#2500)
* Initial preparation for cleaning up multiple files per MCU * Combined DSHOT for F3 and F4 (F7 todo) * Build fixes (mixed some adjustments needed in transponder_ir.c) * Fix F7 warnings/bugs * Updated timer periods for transponder. Fixed FURY including old pwm_output files. * Added method to calculate prescaler and period on the fly for varying clock speeds. This can be used for overclocking :) * Consolidated led_strip * Moved led strip to use system clock for timing (allowing overclocking) * Fixed incorrect channel, and removed comparison warning. * More cleanup * Fix KIWIF4 target * Cleaned up target.mk files
This commit is contained in:
J Blackman
Martin Budden
parent
67ac6dfefa
commit
792941606f
30 changed files with 204 additions and 653 deletions
175
src/main/drivers/light_ws2811strip_stdperiph.c
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175
src/main/drivers/light_ws2811strip_stdperiph.c
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/*
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* This file is part of Cleanflight.
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*
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* Cleanflight is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Cleanflight is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Cleanflight. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdbool.h>
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#include <stdint.h>
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#include "platform.h"
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#ifdef LED_STRIP
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#include "io.h"
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#include "nvic.h"
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#include "common/color.h"
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#include "light_ws2811strip.h"
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#include "dma.h"
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#include "system.h"
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#include "rcc.h"
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#include "timer.h"
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static IO_t ws2811IO = IO_NONE;
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bool ws2811Initialised = false;
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#if defined(STM32F4)
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static DMA_Stream_TypeDef *dmaRef = NULL;
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#elif defined(STM32F3) || defined(STM32F1)
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static DMA_Channel_TypeDef *dmaRef = NULL;
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#else
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#error "No MCU definition in light_ws2811strip_stdperiph.c"
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#endif
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static TIM_TypeDef *timer = NULL;
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static void WS2811_DMA_IRQHandler(dmaChannelDescriptor_t *descriptor)
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{
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if (DMA_GET_FLAG_STATUS(descriptor, DMA_IT_TCIF)) {
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ws2811LedDataTransferInProgress = 0;
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DMA_Cmd(descriptor->ref, DISABLE);
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DMA_CLEAR_FLAG(descriptor, DMA_IT_TCIF);
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}
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}
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void ws2811LedStripHardwareInit(ioTag_t ioTag)
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{
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if (!ioTag) {
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return;
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}
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TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
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TIM_OCInitTypeDef TIM_OCInitStructure;
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DMA_InitTypeDef DMA_InitStructure;
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const timerHardware_t *timerHardware = timerGetByTag(ioTag, TIM_USE_ANY);
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timer = timerHardware->tim;
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if (timerHardware->dmaRef == NULL) {
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return;
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}
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ws2811IO = IOGetByTag(ioTag);
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IOInit(ws2811IO, OWNER_LED_STRIP, 0);
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#ifdef STM32F1
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IOConfigGPIO(ws2811IO, IO_CONFIG(GPIO_Speed_50MHz, GPIO_Mode_AF_PP));
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#else
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IOConfigGPIOAF(ws2811IO, IO_CONFIG(GPIO_Mode_AF, GPIO_Speed_50MHz, GPIO_OType_PP, GPIO_PuPd_UP), timerHardware->alternateFunction);
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#endif
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RCC_ClockCmd(timerRCC(timer), ENABLE);
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// Stop timer
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TIM_Cmd(timer, DISABLE);
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/* Compute the prescaler value */
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uint16_t prescaler = timerGetPrescalerByDesiredMhz(timer, WS2811_TIMER_MHZ);
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uint16_t period = timerGetPeriodByPrescaler(timer, prescaler, WS2811_CARRIER_HZ);
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BIT_COMPARE_1 = period / 3 * 2;
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BIT_COMPARE_0 = period / 3;
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/* Time base configuration */
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TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
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TIM_TimeBaseStructure.TIM_Period = period; // 800kHz
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TIM_TimeBaseStructure.TIM_Prescaler = prescaler;
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TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
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TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
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TIM_TimeBaseInit(timer, &TIM_TimeBaseStructure);
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/* PWM1 Mode configuration */
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TIM_OCStructInit(&TIM_OCInitStructure);
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TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
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if (timerHardware->output & TIMER_OUTPUT_N_CHANNEL) {
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TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
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TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Reset;
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} else {
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TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
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TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;
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}
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TIM_OCInitStructure.TIM_OCPolarity = (timerHardware->output & TIMER_OUTPUT_INVERTED) ? TIM_OCPolarity_Low : TIM_OCPolarity_High;
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TIM_OCInitStructure.TIM_Pulse = 0;
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timerOCInit(timer, timerHardware->channel, &TIM_OCInitStructure);
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timerOCPreloadConfig(timer, timerHardware->channel, TIM_OCPreload_Enable);
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TIM_CtrlPWMOutputs(timer, ENABLE);
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TIM_ARRPreloadConfig(timer, ENABLE);
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TIM_CCxCmd(timer, timerHardware->channel, TIM_CCx_Enable);
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TIM_Cmd(timer, ENABLE);
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dmaInit(timerHardware->dmaIrqHandler, OWNER_LED_STRIP, 0);
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dmaSetHandler(timerHardware->dmaIrqHandler, WS2811_DMA_IRQHandler, NVIC_PRIO_WS2811_DMA, 0);
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dmaRef = timerHardware->dmaRef;
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DMA_DeInit(dmaRef);
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/* configure DMA */
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DMA_Cmd(dmaRef, DISABLE);
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DMA_DeInit(dmaRef);
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DMA_StructInit(&DMA_InitStructure);
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DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)timerCCR(timer, timerHardware->channel);
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DMA_InitStructure.DMA_BufferSize = WS2811_DMA_BUFFER_SIZE;
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DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
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DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
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#if defined(STM32F4)
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DMA_InitStructure.DMA_Channel = timerHardware->dmaChannel;
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DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)ledStripDMABuffer;
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DMA_InitStructure.DMA_DIR = DMA_DIR_MemoryToPeripheral;
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DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
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DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
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DMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh;
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#elif defined(STM32F3) || defined(STM32F1)
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DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)ledStripDMABuffer;
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DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
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DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
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DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
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DMA_InitStructure.DMA_Priority = DMA_Priority_High;
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DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
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#endif
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DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
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DMA_Init(dmaRef, &DMA_InitStructure);
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TIM_DMACmd(timer, timerDmaSource(timerHardware->channel), ENABLE);
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DMA_ITConfig(dmaRef, DMA_IT_TC, ENABLE);
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#ifdef STM32F4
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DMA_ClearITPendingBit(dmaRef, dmaFlag_IT_TCIF(dmaRef));
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#endif
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ws2811Initialised = true;
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}
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void ws2811LedStripDMAEnable(void)
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{
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if (!ws2811Initialised)
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return;
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DMA_SetCurrDataCounter(dmaRef, WS2811_DMA_BUFFER_SIZE); // load number of bytes to be transferred
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TIM_SetCounter(timer, 0);
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TIM_Cmd(timer, ENABLE);
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DMA_Cmd(dmaRef, ENABLE);
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}
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#endif
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