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- /**
- * 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/>.
- *
- */
-
- #include "../../platforms.h"
-
- #ifdef HAL_STM32
-
- #include "../../../inc/MarlinConfig.h"
-
- #if HAS_FSMC_TFT
-
- #include "tft_fsmc.h"
- #include "pinconfig.h"
-
- SRAM_HandleTypeDef TFT_FSMC::SRAMx;
- DMA_HandleTypeDef TFT_FSMC::DMAtx;
- LCD_CONTROLLER_TypeDef *TFT_FSMC::LCD;
-
- void TFT_FSMC::Init() {
- uint32_t controllerAddress;
- FSMC_NORSRAM_TimingTypeDef Timing, ExtTiming;
-
- uint32_t NSBank = (uint32_t)pinmap_peripheral(digitalPinToPinName(TFT_CS_PIN), PinMap_FSMC_CS);
-
- // Perform the SRAM1 memory initialization sequence
- SRAMx.Instance = FSMC_NORSRAM_DEVICE;
- SRAMx.Extended = FSMC_NORSRAM_EXTENDED_DEVICE;
- // SRAMx.Init
- SRAMx.Init.NSBank = NSBank;
- SRAMx.Init.DataAddressMux = FSMC_DATA_ADDRESS_MUX_DISABLE;
- SRAMx.Init.MemoryType = FSMC_MEMORY_TYPE_SRAM;
- SRAMx.Init.MemoryDataWidth = TERN(TFT_INTERFACE_FSMC_8BIT, FSMC_NORSRAM_MEM_BUS_WIDTH_8, FSMC_NORSRAM_MEM_BUS_WIDTH_16);
- SRAMx.Init.BurstAccessMode = FSMC_BURST_ACCESS_MODE_DISABLE;
- SRAMx.Init.WaitSignalPolarity = FSMC_WAIT_SIGNAL_POLARITY_LOW;
- SRAMx.Init.WrapMode = FSMC_WRAP_MODE_DISABLE;
- SRAMx.Init.WaitSignalActive = FSMC_WAIT_TIMING_BEFORE_WS;
- SRAMx.Init.WriteOperation = FSMC_WRITE_OPERATION_ENABLE;
- SRAMx.Init.WaitSignal = FSMC_WAIT_SIGNAL_DISABLE;
- SRAMx.Init.ExtendedMode = FSMC_EXTENDED_MODE_ENABLE;
- SRAMx.Init.AsynchronousWait = FSMC_ASYNCHRONOUS_WAIT_DISABLE;
- SRAMx.Init.WriteBurst = FSMC_WRITE_BURST_DISABLE;
- #ifdef STM32F4xx
- SRAMx.Init.PageSize = FSMC_PAGE_SIZE_NONE;
- #endif
- // Read Timing - relatively slow to ensure ID information is correctly read from TFT controller
- // Can be decreases from 15-15-24 to 4-4-8 with risk of stability loss
- Timing.AddressSetupTime = 15;
- Timing.AddressHoldTime = 15;
- Timing.DataSetupTime = 24;
- Timing.BusTurnAroundDuration = 0;
- Timing.CLKDivision = 16;
- Timing.DataLatency = 17;
- Timing.AccessMode = FSMC_ACCESS_MODE_A;
- // Write Timing
- // Can be decreases from 8-15-8 to 0-0-1 with risk of stability loss
- ExtTiming.AddressSetupTime = 8;
- ExtTiming.AddressHoldTime = 15;
- ExtTiming.DataSetupTime = 8;
- ExtTiming.BusTurnAroundDuration = 0;
- ExtTiming.CLKDivision = 16;
- ExtTiming.DataLatency = 17;
- ExtTiming.AccessMode = FSMC_ACCESS_MODE_A;
-
- __HAL_RCC_FSMC_CLK_ENABLE();
-
- for (uint16_t i = 0; PinMap_FSMC[i].pin != NC; i++)
- pinmap_pinout(PinMap_FSMC[i].pin, PinMap_FSMC);
- pinmap_pinout(digitalPinToPinName(TFT_CS_PIN), PinMap_FSMC_CS);
- pinmap_pinout(digitalPinToPinName(TFT_RS_PIN), PinMap_FSMC_RS);
-
- controllerAddress = FSMC_BANK1_1;
- #ifdef PF0
- switch (NSBank) {
- case FSMC_NORSRAM_BANK2: controllerAddress = FSMC_BANK1_2 ; break;
- case FSMC_NORSRAM_BANK3: controllerAddress = FSMC_BANK1_3 ; break;
- case FSMC_NORSRAM_BANK4: controllerAddress = FSMC_BANK1_4 ; break;
- }
- #endif
-
- controllerAddress |= (uint32_t)pinmap_peripheral(digitalPinToPinName(TFT_RS_PIN), PinMap_FSMC_RS);
-
- HAL_SRAM_Init(&SRAMx, &Timing, &ExtTiming);
-
- __HAL_RCC_DMA2_CLK_ENABLE();
-
- #ifdef STM32F1xx
- DMAtx.Instance = DMA2_Channel1;
- #elif defined(STM32F4xx)
- DMAtx.Instance = DMA2_Stream0;
- DMAtx.Init.Channel = DMA_CHANNEL_0;
- DMAtx.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
- DMAtx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
- DMAtx.Init.MemBurst = DMA_MBURST_SINGLE;
- DMAtx.Init.PeriphBurst = DMA_PBURST_SINGLE;
- #endif
-
- DMAtx.Init.Direction = DMA_MEMORY_TO_MEMORY;
- DMAtx.Init.MemInc = DMA_MINC_DISABLE;
- DMAtx.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
- DMAtx.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
- DMAtx.Init.Mode = DMA_NORMAL;
- DMAtx.Init.Priority = DMA_PRIORITY_HIGH;
-
- LCD = (LCD_CONTROLLER_TypeDef *)controllerAddress;
- }
-
- uint32_t TFT_FSMC::GetID() {
- uint32_t id;
- WriteReg(0);
- id = LCD->RAM;
-
- if (id == 0)
- id = ReadID(LCD_READ_ID);
- if ((id & 0xFFFF) == 0 || (id & 0xFFFF) == 0xFFFF)
- id = ReadID(LCD_READ_ID4);
- return id;
- }
-
- uint32_t TFT_FSMC::ReadID(tft_data_t Reg) {
- uint32_t id;
- WriteReg(Reg);
- id = LCD->RAM; // dummy read
- id = Reg << 24;
- id |= (LCD->RAM & 0x00FF) << 16;
- id |= (LCD->RAM & 0x00FF) << 8;
- id |= LCD->RAM & 0x00FF;
- return id;
- }
-
- bool TFT_FSMC::isBusy() {
- #ifdef 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_FSMC::TransmitDMA(uint32_t MemoryIncrease, uint16_t *Data, uint16_t Count) {
- DMAtx.Init.PeriphInc = MemoryIncrease;
- HAL_DMA_Init(&DMAtx);
- DataTransferBegin();
- HAL_DMA_Start(&DMAtx, (uint32_t)Data, (uint32_t)&(LCD->RAM), Count);
- HAL_DMA_PollForTransfer(&DMAtx, HAL_DMA_FULL_TRANSFER, HAL_MAX_DELAY);
- Abort();
- }
-
- #endif // HAS_FSMC_TFT
- #endif // HAL_STM32
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