diff options
Diffstat (limited to 'Marlin/src/HAL/STM32F1/sdio.cpp')
| -rw-r--r-- | Marlin/src/HAL/STM32F1/sdio.cpp | 303 |
1 files changed, 303 insertions, 0 deletions
diff --git a/Marlin/src/HAL/STM32F1/sdio.cpp b/Marlin/src/HAL/STM32F1/sdio.cpp new file mode 100644 index 0000000..ffa6db1 --- /dev/null +++ b/Marlin/src/HAL/STM32F1/sdio.cpp @@ -0,0 +1,303 @@ +/** + * 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 + * Copyright (c) 2017 Victor Perez + * + * 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/>. + * + */ +#ifdef ARDUINO_ARCH_STM32F1 + +#include <libmaple/stm32.h> + +#include "../../inc/MarlinConfig.h" // Allow pins/pins.h to set density + +#if EITHER(STM32_HIGH_DENSITY, STM32_XL_DENSITY) + +#include "sdio.h" + +SDIO_CardInfoTypeDef SdCard; + +bool SDIO_Init() { + uint32_t count = 0U; + SdCard.CardType = SdCard.CardVersion = SdCard.Class = SdCard.RelCardAdd = SdCard.BlockNbr = SdCard.BlockSize = SdCard.LogBlockNbr = SdCard.LogBlockSize = 0; + + sdio_begin(); + sdio_set_dbus_width(SDIO_CLKCR_WIDBUS_1BIT); + + dma_init(SDIO_DMA_DEV); + dma_disable(SDIO_DMA_DEV, SDIO_DMA_CHANNEL); + dma_set_priority(SDIO_DMA_DEV, SDIO_DMA_CHANNEL, DMA_PRIORITY_MEDIUM); + + if (!SDIO_CmdGoIdleState()) return false; + if (!SDIO_CmdGoIdleState()) return false; /* Hotplugged cards tends to miss first CMD0, so give them a second chance. */ + + SdCard.CardVersion = SDIO_CmdOperCond() ? CARD_V2_X : CARD_V1_X; + + do { + if (count++ == SDMMC_MAX_VOLT_TRIAL) return false; + SDIO_CmdAppOperCommand(SdCard.CardVersion == CARD_V2_X ? SDMMC_HIGH_CAPACITY : SDMMC_STD_CAPACITY); + } while ((SDIO_GetResponse(SDIO_RESP1) & 0x80000000) == 0); + + SdCard.CardType = (SDIO_GetResponse(SDIO_RESP1) & SDMMC_HIGH_CAPACITY) ? CARD_SDHC_SDXC : CARD_SDSC; + + if (!SDIO_CmdSendCID()) return false; + if (!SDIO_CmdSetRelAdd(&SdCard.RelCardAdd)) return false; /* Send CMD3 SET_REL_ADDR with argument 0. SD Card publishes its RCA. */ + if (!SDIO_CmdSendCSD(SdCard.RelCardAdd << 16U)) return false; + + SdCard.Class = (SDIO_GetResponse(SDIO_RESP2) >> 20U); + + if (SdCard.CardType == CARD_SDHC_SDXC) { + SdCard.LogBlockNbr = SdCard.BlockNbr = (((SDIO_GetResponse(SDIO_RESP2) & 0x0000003FU) << 26U) | ((SDIO_GetResponse(SDIO_RESP3) & 0xFFFF0000U) >> 6U)) + 1024; + SdCard.LogBlockSize = SdCard.BlockSize = 512U; + } + else { + SdCard.BlockNbr = ((((SDIO_GetResponse(SDIO_RESP2) & 0x000003FFU) << 2U ) | ((SDIO_GetResponse(SDIO_RESP3) & 0xC0000000U) >> 30U)) + 1U) * (4U << ((SDIO_GetResponse(SDIO_RESP3) & 0x00038000U) >> 15U)); + SdCard.BlockSize = 1U << ((SDIO_GetResponse(SDIO_RESP2) >> 16) & 0x0FU); + SdCard.LogBlockNbr = (SdCard.BlockNbr) * ((SdCard.BlockSize) / 512U); + SdCard.LogBlockSize = 512U; + } + + if (!SDIO_CmdSelDesel(SdCard.RelCardAdd << 16U)) return false; + if (!SDIO_CmdAppSetClearCardDetect(SdCard.RelCardAdd << 16U)) return false; + if (!SDIO_CmdAppSetBusWidth(SdCard.RelCardAdd << 16U, 2)) return false; + + sdio_set_dbus_width(SDIO_CLKCR_WIDBUS_4BIT); + sdio_set_clock(SDIO_CLOCK); + return true; +} + +bool SDIO_ReadBlock_DMA(uint32_t blockAddress, uint8_t *data) { + if (SDIO_GetCardState() != SDIO_CARD_TRANSFER) return false; + if (blockAddress >= SdCard.LogBlockNbr) return false; + if ((0x03 & (uint32_t)data)) return false; // misaligned data + + if (SdCard.CardType != CARD_SDHC_SDXC) { blockAddress *= 512U; } + + dma_setup_transfer(SDIO_DMA_DEV, SDIO_DMA_CHANNEL, &SDIO->FIFO, DMA_SIZE_32BITS, data, DMA_SIZE_32BITS, DMA_MINC_MODE); + dma_set_num_transfers(SDIO_DMA_DEV, SDIO_DMA_CHANNEL, 128); + dma_clear_isr_bits(SDIO_DMA_DEV, SDIO_DMA_CHANNEL); + dma_enable(SDIO_DMA_DEV, SDIO_DMA_CHANNEL); + + sdio_setup_transfer(SDIO_DATA_TIMEOUT * (F_CPU / 1000U), 512, SDIO_BLOCKSIZE_512 | SDIO_DCTRL_DMAEN | SDIO_DCTRL_DTEN | SDIO_DIR_RX); + + if (!SDIO_CmdReadSingleBlock(blockAddress)) { + SDIO_CLEAR_FLAG(SDIO_ICR_CMD_FLAGS); + dma_disable(SDIO_DMA_DEV, SDIO_DMA_CHANNEL); + return false; + } + + while (!SDIO_GET_FLAG(SDIO_STA_DATAEND | SDIO_STA_TRX_ERROR_FLAGS)) { /* wait */ } + + //If there were SDIO errors, do not wait DMA. + if (SDIO->STA & SDIO_STA_TRX_ERROR_FLAGS) { + SDIO_CLEAR_FLAG(SDIO_ICR_CMD_FLAGS | SDIO_ICR_DATA_FLAGS); + dma_disable(SDIO_DMA_DEV, SDIO_DMA_CHANNEL); + return false; + } + + //Wait for DMA transaction to complete + while ((DMA2_BASE->ISR & (DMA_ISR_TEIF4|DMA_ISR_TCIF4)) == 0 ) { /* wait */ } + + if (DMA2_BASE->ISR & DMA_ISR_TEIF4) { + dma_disable(SDIO_DMA_DEV, SDIO_DMA_CHANNEL); + SDIO_CLEAR_FLAG(SDIO_ICR_CMD_FLAGS | SDIO_ICR_DATA_FLAGS); + return false; + } + + dma_disable(SDIO_DMA_DEV, SDIO_DMA_CHANNEL); + + if (SDIO->STA & SDIO_STA_RXDAVL) { + while (SDIO->STA & SDIO_STA_RXDAVL) (void)SDIO->FIFO; + SDIO_CLEAR_FLAG(SDIO_ICR_CMD_FLAGS | SDIO_ICR_DATA_FLAGS); + return false; + } + + if (SDIO_GET_FLAG(SDIO_STA_TRX_ERROR_FLAGS)) { + SDIO_CLEAR_FLAG(SDIO_ICR_CMD_FLAGS | SDIO_ICR_DATA_FLAGS); + return false; + } + SDIO_CLEAR_FLAG(SDIO_ICR_CMD_FLAGS | SDIO_ICR_DATA_FLAGS); + return true; +} + +bool SDIO_ReadBlock(uint32_t blockAddress, uint8_t *data) { + uint32_t retries = SDIO_READ_RETRIES; + while (retries--) if (SDIO_ReadBlock_DMA(blockAddress, data)) return true; + return false; +} + +uint32_t millis(); + +bool SDIO_WriteBlock(uint32_t blockAddress, const uint8_t *data) { + if (SDIO_GetCardState() != SDIO_CARD_TRANSFER) return false; + if (blockAddress >= SdCard.LogBlockNbr) return false; + if ((0x03 & (uint32_t)data)) return false; // misaligned data + + if (SdCard.CardType != CARD_SDHC_SDXC) { blockAddress *= 512U; } + + dma_setup_transfer(SDIO_DMA_DEV, SDIO_DMA_CHANNEL, &SDIO->FIFO, DMA_SIZE_32BITS, (volatile void *) data, DMA_SIZE_32BITS, DMA_MINC_MODE | DMA_FROM_MEM); + dma_set_num_transfers(SDIO_DMA_DEV, SDIO_DMA_CHANNEL, 128); + dma_clear_isr_bits(SDIO_DMA_DEV, SDIO_DMA_CHANNEL); + dma_enable(SDIO_DMA_DEV, SDIO_DMA_CHANNEL); + + if (!SDIO_CmdWriteSingleBlock(blockAddress)) { + dma_disable(SDIO_DMA_DEV, SDIO_DMA_CHANNEL); + return false; + } + + sdio_setup_transfer(SDIO_DATA_TIMEOUT * (F_CPU / 1000U), 512U, SDIO_BLOCKSIZE_512 | SDIO_DCTRL_DMAEN | SDIO_DCTRL_DTEN); + + while (!SDIO_GET_FLAG(SDIO_STA_DATAEND | SDIO_STA_TRX_ERROR_FLAGS)) { /* wait */ } + + dma_disable(SDIO_DMA_DEV, SDIO_DMA_CHANNEL); + + if (SDIO_GET_FLAG(SDIO_STA_TRX_ERROR_FLAGS)) { + SDIO_CLEAR_FLAG(SDIO_ICR_CMD_FLAGS | SDIO_ICR_DATA_FLAGS); + return false; + } + + SDIO_CLEAR_FLAG(SDIO_ICR_CMD_FLAGS | SDIO_ICR_DATA_FLAGS); + + uint32_t timeout = millis() + SDIO_WRITE_TIMEOUT; + while (timeout > millis()) { + if (SDIO_GetCardState() == SDIO_CARD_TRANSFER) { + return true; + } + } + return false; +} + +inline uint32_t SDIO_GetCardState() { return SDIO_CmdSendStatus(SdCard.RelCardAdd << 16U) ? (SDIO_GetResponse(SDIO_RESP1) >> 9U) & 0x0FU : SDIO_CARD_ERROR; } + +// ------------------------ +// SD Commands and Responses +// ------------------------ + +void SDIO_SendCommand(uint16_t command, uint32_t argument) { SDIO->ARG = argument; SDIO->CMD = (uint32_t)(SDIO_CMD_CPSMEN | command); } +uint8_t SDIO_GetCommandResponse() { return (uint8_t)(SDIO->RESPCMD); } +uint32_t SDIO_GetResponse(uint32_t response) { return SDIO->RESP[response]; } + +bool SDIO_CmdGoIdleState() { SDIO_SendCommand(CMD0_GO_IDLE_STATE, 0); return SDIO_GetCmdError(); } +bool SDIO_CmdSendCID() { SDIO_SendCommand(CMD2_ALL_SEND_CID, 0); return SDIO_GetCmdResp2(); } +bool SDIO_CmdSetRelAdd(uint32_t *rca) { SDIO_SendCommand(CMD3_SET_REL_ADDR, 0); return SDIO_GetCmdResp6(SDMMC_CMD_SET_REL_ADDR, rca); } +bool SDIO_CmdSelDesel(uint32_t address) { SDIO_SendCommand(CMD7_SEL_DESEL_CARD, address); return SDIO_GetCmdResp1(SDMMC_CMD_SEL_DESEL_CARD); } +bool SDIO_CmdOperCond() { SDIO_SendCommand(CMD8_HS_SEND_EXT_CSD, SDMMC_CHECK_PATTERN); return SDIO_GetCmdResp7(); } +bool SDIO_CmdSendCSD(uint32_t argument) { SDIO_SendCommand(CMD9_SEND_CSD, argument); return SDIO_GetCmdResp2(); } +bool SDIO_CmdSendStatus(uint32_t argument) { SDIO_SendCommand(CMD13_SEND_STATUS, argument); return SDIO_GetCmdResp1(SDMMC_CMD_SEND_STATUS); } +bool SDIO_CmdReadSingleBlock(uint32_t address) { SDIO_SendCommand(CMD17_READ_SINGLE_BLOCK, address); return SDIO_GetCmdResp1(SDMMC_CMD_READ_SINGLE_BLOCK); } +bool SDIO_CmdWriteSingleBlock(uint32_t address) { SDIO_SendCommand(CMD24_WRITE_SINGLE_BLOCK, address); return SDIO_GetCmdResp1(SDMMC_CMD_WRITE_SINGLE_BLOCK); } +bool SDIO_CmdAppCommand(uint32_t rsa) { SDIO_SendCommand(CMD55_APP_CMD, rsa); return SDIO_GetCmdResp1(SDMMC_CMD_APP_CMD); } + +bool SDIO_CmdAppSetBusWidth(uint32_t rsa, uint32_t argument) { + if (!SDIO_CmdAppCommand(rsa)) return false; + SDIO_SendCommand(ACMD6_APP_SD_SET_BUSWIDTH, argument); + return SDIO_GetCmdResp2(); +} + +bool SDIO_CmdAppOperCommand(uint32_t sdType) { + if (!SDIO_CmdAppCommand(0)) return false; + SDIO_SendCommand(ACMD41_SD_APP_OP_COND , SDMMC_VOLTAGE_WINDOW_SD | sdType); + return SDIO_GetCmdResp3(); +} + +bool SDIO_CmdAppSetClearCardDetect(uint32_t rsa) { + if (!SDIO_CmdAppCommand(rsa)) return false; + SDIO_SendCommand(ACMD42_SD_APP_SET_CLR_CARD_DETECT, 0); + return SDIO_GetCmdResp2(); +} + +// Wait until given flags are unset or till timeout +#define SDIO_WAIT(FLAGS) do{ \ + uint32_t count = 1 + (SDIO_CMDTIMEOUT) * ((F_CPU) / 8U / 1000U); \ + do { if (!--count) return false; } while (!SDIO_GET_FLAG(FLAGS)); \ +}while(0) + +bool SDIO_GetCmdError() { + SDIO_WAIT(SDIO_STA_CMDSENT); + + SDIO_CLEAR_FLAG(SDIO_ICR_CMD_FLAGS); + return true; +} + +bool SDIO_GetCmdResp1(uint8_t command) { + SDIO_WAIT(SDIO_STA_CCRCFAIL | SDIO_STA_CMDREND | SDIO_STA_CTIMEOUT); + + if (SDIO_GET_FLAG(SDIO_STA_CCRCFAIL | SDIO_STA_CTIMEOUT)) { + SDIO_CLEAR_FLAG(SDIO_STA_CCRCFAIL | SDIO_STA_CTIMEOUT); + return false; + } + if (SDIO_GetCommandResponse() != command) return false; + + SDIO_CLEAR_FLAG(SDIO_ICR_CMD_FLAGS); + return (SDIO_GetResponse(SDIO_RESP1) & SDMMC_OCR_ERRORBITS) == SDMMC_ALLZERO; +} + +bool SDIO_GetCmdResp2() { + SDIO_WAIT(SDIO_STA_CCRCFAIL | SDIO_STA_CMDREND | SDIO_STA_CTIMEOUT); + + if (SDIO_GET_FLAG(SDIO_STA_CCRCFAIL | SDIO_STA_CTIMEOUT)) { + SDIO_CLEAR_FLAG(SDIO_STA_CCRCFAIL | SDIO_STA_CTIMEOUT); + return false; + } + + SDIO_CLEAR_FLAG(SDIO_ICR_CMD_FLAGS); + return true; +} + +bool SDIO_GetCmdResp3() { + SDIO_WAIT(SDIO_STA_CCRCFAIL | SDIO_STA_CMDREND | SDIO_STA_CTIMEOUT); + + if (SDIO_GET_FLAG(SDIO_STA_CTIMEOUT)) { + SDIO_CLEAR_FLAG(SDIO_STA_CTIMEOUT); + return false; + } + + SDIO_CLEAR_FLAG(SDIO_ICR_CMD_FLAGS); + return true; +} + +bool SDIO_GetCmdResp6(uint8_t command, uint32_t *rca) { + SDIO_WAIT(SDIO_STA_CCRCFAIL | SDIO_STA_CMDREND | SDIO_STA_CTIMEOUT); + + if (SDIO_GET_FLAG(SDIO_STA_CCRCFAIL | SDIO_STA_CTIMEOUT)) { + SDIO_CLEAR_FLAG(SDIO_STA_CCRCFAIL | SDIO_STA_CTIMEOUT); + return false; + } + if (SDIO_GetCommandResponse() != command) return false; + + SDIO_CLEAR_FLAG(SDIO_ICR_CMD_FLAGS); + if (SDIO_GetResponse(SDIO_RESP1) & (SDMMC_R6_GENERAL_UNKNOWN_ERROR | SDMMC_R6_ILLEGAL_CMD | SDMMC_R6_COM_CRC_FAILED)) return false; + + *rca = SDIO_GetResponse(SDIO_RESP1) >> 16; + return true; +} + +bool SDIO_GetCmdResp7() { + SDIO_WAIT(SDIO_STA_CCRCFAIL | SDIO_STA_CMDREND | SDIO_STA_CTIMEOUT); + + if (SDIO_GET_FLAG(SDIO_STA_CTIMEOUT)) { + SDIO_CLEAR_FLAG(SDIO_STA_CTIMEOUT); + return false; + } + + if (SDIO_GET_FLAG(SDIO_STA_CMDREND)) { SDIO_CLEAR_FLAG(SDIO_STA_CMDREND); } + return true; +} + +#endif // STM32_HIGH_DENSITY || STM32_XL_DENSITY +#endif // ARDUINO_ARCH_STM32F1 |