diff options
Diffstat (limited to 'Marlin/src/HAL/STM32/tft/tft_spi.cpp')
| -rw-r--r-- | Marlin/src/HAL/STM32/tft/tft_spi.cpp | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/Marlin/src/HAL/STM32/tft/tft_spi.cpp b/Marlin/src/HAL/STM32/tft/tft_spi.cpp new file mode 100644 index 0000000..3cb797d --- /dev/null +++ b/Marlin/src/HAL/STM32/tft/tft_spi.cpp @@ -0,0 +1,235 @@ +/** + * Marlin 3D Printer Firmware + * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin] + * + * Based on Sprinter and grbl. + * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + * + */ +#if defined(ARDUINO_ARCH_STM32) && !defined(STM32GENERIC) + +#include "../../../inc/MarlinConfig.h" + +#if HAS_SPI_TFT + +#include "tft_spi.h" +#include "pinconfig.h" + +SPI_HandleTypeDef TFT_SPI::SPIx; +DMA_HandleTypeDef TFT_SPI::DMAtx; + +void TFT_SPI::Init() { + SPI_TypeDef *spiInstance; + + OUT_WRITE(TFT_A0_PIN, HIGH); + OUT_WRITE(TFT_CS_PIN, HIGH); + + if ((spiInstance = (SPI_TypeDef *)pinmap_peripheral(digitalPinToPinName(TFT_SCK_PIN), PinMap_SPI_SCLK)) == NP) return; + if (spiInstance != (SPI_TypeDef *)pinmap_peripheral(digitalPinToPinName(TFT_MOSI_PIN), PinMap_SPI_MOSI)) return; + + #if PIN_EXISTS(TFT_MISO) && TFT_MISO_PIN != TFT_MOSI_PIN + if (spiInstance != (SPI_TypeDef *)pinmap_peripheral(digitalPinToPinName(TFT_MISO_PIN), PinMap_SPI_MISO)) return; + #endif + + SPIx.Instance = spiInstance; + SPIx.State = HAL_SPI_STATE_RESET; + SPIx.Init.NSS = SPI_NSS_SOFT; + SPIx.Init.Mode = SPI_MODE_MASTER; + SPIx.Init.Direction = (TFT_MISO_PIN == TFT_MOSI_PIN) ? SPI_DIRECTION_1LINE : SPI_DIRECTION_2LINES; + SPIx.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2; + SPIx.Init.CLKPhase = SPI_PHASE_1EDGE; + SPIx.Init.CLKPolarity = SPI_POLARITY_LOW; + SPIx.Init.DataSize = SPI_DATASIZE_8BIT; + SPIx.Init.FirstBit = SPI_FIRSTBIT_MSB; + SPIx.Init.TIMode = SPI_TIMODE_DISABLE; + SPIx.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE; + SPIx.Init.CRCPolynomial = 10; + + pinmap_pinout(digitalPinToPinName(TFT_SCK_PIN), PinMap_SPI_SCLK); + pinmap_pinout(digitalPinToPinName(TFT_MOSI_PIN), PinMap_SPI_MOSI); + #if PIN_EXISTS(TFT_MISO) && TFT_MISO_PIN != TFT_MOSI_PIN + pinmap_pinout(digitalPinToPinName(TFT_MISO_PIN), PinMap_SPI_MISO); + #endif + pin_PullConfig(get_GPIO_Port(STM_PORT(digitalPinToPinName(TFT_SCK_PIN))), STM_LL_GPIO_PIN(digitalPinToPinName(TFT_SCK_PIN)), GPIO_PULLDOWN); + + #ifdef SPI1_BASE + if (SPIx.Instance == SPI1) { + __HAL_RCC_SPI1_CLK_ENABLE(); + #ifdef STM32F1xx + __HAL_RCC_DMA1_CLK_ENABLE(); + DMAtx.Instance = DMA1_Channel3; + #elif defined(STM32F4xx) + __HAL_RCC_DMA2_CLK_ENABLE(); + DMAtx.Instance = DMA2_Stream3; + DMAtx.Init.Channel = DMA_CHANNEL_3; + #endif + SPIx.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_4; + } + #endif + #ifdef SPI2_BASE + if (SPIx.Instance == SPI2) { + __HAL_RCC_SPI2_CLK_ENABLE(); + #ifdef STM32F1xx + __HAL_RCC_DMA1_CLK_ENABLE(); + DMAtx.Instance = DMA1_Channel5; + #elif defined(STM32F4xx) + __HAL_RCC_DMA1_CLK_ENABLE(); + DMAtx.Instance = DMA1_Stream4; + DMAtx.Init.Channel = DMA_CHANNEL_0; + #endif + } + #endif + #ifdef SPI3_BASE + if (SPIx.Instance == SPI3) { + __HAL_RCC_SPI3_CLK_ENABLE(); + #ifdef STM32F1xx + __HAL_RCC_DMA2_CLK_ENABLE(); + DMAtx.Instance = DMA2_Channel2; + #elif defined(STM32F4xx) + __HAL_RCC_DMA1_CLK_ENABLE(); + DMAtx.Instance = DMA1_Stream5; + DMAtx.Init.Channel = DMA_CHANNEL_0; + #endif + } + #endif + + HAL_SPI_Init(&SPIx); + + DMAtx.Init.Direction = DMA_MEMORY_TO_PERIPH; + DMAtx.Init.PeriphInc = DMA_PINC_DISABLE; + DMAtx.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD; + DMAtx.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD; + DMAtx.Init.Mode = DMA_NORMAL; + DMAtx.Init.Priority = DMA_PRIORITY_LOW; + #ifdef STM32F4xx + DMAtx.Init.FIFOMode = DMA_FIFOMODE_DISABLE; + #endif +} + +void TFT_SPI::DataTransferBegin(uint16_t DataSize) { + SPIx.Init.DataSize = DataSize == DATASIZE_8BIT ? SPI_DATASIZE_8BIT : SPI_DATASIZE_16BIT; + HAL_SPI_Init(&SPIx); + WRITE(TFT_CS_PIN, LOW); +} + +uint32_t TFT_SPI::GetID() { + uint32_t id; + id = ReadID(LCD_READ_ID); + + if ((id & 0xFFFF) == 0 || (id & 0xFFFF) == 0xFFFF) + id = ReadID(LCD_READ_ID4); + return id; +} + +uint32_t TFT_SPI::ReadID(uint16_t Reg) { + uint32_t Data = 0; + #if PIN_EXISTS(TFT_MISO) + uint32_t BaudRatePrescaler = SPIx.Init.BaudRatePrescaler; + uint32_t i; + + SPIx.Init.BaudRatePrescaler = SPIx.Instance == SPI1 ? SPI_BAUDRATEPRESCALER_8 : SPI_BAUDRATEPRESCALER_4; + DataTransferBegin(DATASIZE_8BIT); + WriteReg(Reg); + + if (SPIx.Init.Direction == SPI_DIRECTION_1LINE) SPI_1LINE_RX(&SPIx); + __HAL_SPI_ENABLE(&SPIx); + + for (i = 0; i < 4; i++) { + #if TFT_MISO_PIN != TFT_MOSI_PIN + //if (hspi->Init.Direction == SPI_DIRECTION_2LINES) { + while ((SPIx.Instance->SR & SPI_FLAG_TXE) != SPI_FLAG_TXE) {} + SPIx.Instance->DR = 0; + //} + #endif + while ((SPIx.Instance->SR & SPI_FLAG_RXNE) != SPI_FLAG_RXNE) {} + Data = (Data << 8) | SPIx.Instance->DR; + } + + __HAL_SPI_DISABLE(&SPIx); + DataTransferEnd(); + + SPIx.Init.BaudRatePrescaler = BaudRatePrescaler; + #endif + + return Data >> 7; +} + +bool TFT_SPI::isBusy() { + #if defined(STM32F1xx) + volatile bool dmaEnabled = (DMAtx.Instance->CCR & DMA_CCR_EN) != RESET; + #elif defined(STM32F4xx) + volatile bool dmaEnabled = DMAtx.Instance->CR & DMA_SxCR_EN; + #endif + if (dmaEnabled) { + if (__HAL_DMA_GET_FLAG(&DMAtx, __HAL_DMA_GET_TC_FLAG_INDEX(&DMAtx)) != 0 || __HAL_DMA_GET_FLAG(&DMAtx, __HAL_DMA_GET_TE_FLAG_INDEX(&DMAtx)) != 0) + Abort(); + } + else + Abort(); + return dmaEnabled; +} + +void TFT_SPI::Abort() { + // Wait for any running spi + while ((SPIx.Instance->SR & SPI_FLAG_TXE) != SPI_FLAG_TXE) {} + while ((SPIx.Instance->SR & SPI_FLAG_BSY) == SPI_FLAG_BSY) {} + // First, abort any running dma + HAL_DMA_Abort(&DMAtx); + // DeInit objects + HAL_DMA_DeInit(&DMAtx); + HAL_SPI_DeInit(&SPIx); + // Deselect CS + DataTransferEnd(); +} + +void TFT_SPI::Transmit(uint16_t Data) { + if (TFT_MISO_PIN == TFT_MOSI_PIN) + SPI_1LINE_TX(&SPIx); + + __HAL_SPI_ENABLE(&SPIx); + + SPIx.Instance->DR = Data; + + while ((SPIx.Instance->SR & SPI_FLAG_TXE) != SPI_FLAG_TXE) {} + while ((SPIx.Instance->SR & SPI_FLAG_BSY) == SPI_FLAG_BSY) {} + + if (TFT_MISO_PIN != TFT_MOSI_PIN) + __HAL_SPI_CLEAR_OVRFLAG(&SPIx); /* Clear overrun flag in 2 Lines communication mode because received is not read */ +} + +void TFT_SPI::TransmitDMA(uint32_t MemoryIncrease, uint16_t *Data, uint16_t Count) { + // Wait last dma finish, to start another + while(isBusy()) { } + + DMAtx.Init.MemInc = MemoryIncrease; + HAL_DMA_Init(&DMAtx); + + if (TFT_MISO_PIN == TFT_MOSI_PIN) + SPI_1LINE_TX(&SPIx); + + DataTransferBegin(); + + HAL_DMA_Start(&DMAtx, (uint32_t)Data, (uint32_t)&(SPIx.Instance->DR), Count); + __HAL_SPI_ENABLE(&SPIx); + + SET_BIT(SPIx.Instance->CR2, SPI_CR2_TXDMAEN); /* Enable Tx DMA Request */ + + HAL_DMA_PollForTransfer(&DMAtx, HAL_DMA_FULL_TRANSFER, HAL_MAX_DELAY); + Abort(); +} + +#endif // HAS_SPI_TFT +#endif // ARDUINO_ARCH_STM32 && !STM32GENERIC |