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Diffstat (limited to 'Marlin/src/sd/Sd2Card.cpp')
| -rw-r--r-- | Marlin/src/sd/Sd2Card.cpp | 669 |
1 files changed, 669 insertions, 0 deletions
diff --git a/Marlin/src/sd/Sd2Card.cpp b/Marlin/src/sd/Sd2Card.cpp new file mode 100644 index 0000000..491c069 --- /dev/null +++ b/Marlin/src/sd/Sd2Card.cpp @@ -0,0 +1,669 @@ +/** + * 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/>. + * + */ + +/** + * Arduino Sd2Card Library + * Copyright (c) 2009 by William Greiman + * Updated with backports of the latest SdFat library from the same author + * + * This file is part of the Arduino Sd2Card Library + */ + +#include "../inc/MarlinConfig.h" + +#if ENABLED(SDSUPPORT) && NONE(USB_FLASH_DRIVE_SUPPORT, SDIO_SUPPORT) + +/* Enable FAST CRC computations - You can trade speed for FLASH space if + * needed by disabling the following define */ +#define FAST_CRC 1 + +#include "Sd2Card.h" + +#include "../MarlinCore.h" + +#if ENABLED(SD_CHECK_AND_RETRY) + static bool crcSupported = true; + + #ifdef FAST_CRC + static const uint8_t crctab7[] PROGMEM = { + 0x00,0x09,0x12,0x1B,0x24,0x2D,0x36,0x3F,0x48,0x41,0x5A,0x53,0x6C,0x65,0x7E,0x77, + 0x19,0x10,0x0B,0x02,0x3D,0x34,0x2F,0x26,0x51,0x58,0x43,0x4A,0x75,0x7C,0x67,0x6E, + 0x32,0x3B,0x20,0x29,0x16,0x1F,0x04,0x0D,0x7A,0x73,0x68,0x61,0x5E,0x57,0x4C,0x45, + 0x2B,0x22,0x39,0x30,0x0F,0x06,0x1D,0x14,0x63,0x6A,0x71,0x78,0x47,0x4E,0x55,0x5C, + 0x64,0x6D,0x76,0x7F,0x40,0x49,0x52,0x5B,0x2C,0x25,0x3E,0x37,0x08,0x01,0x1A,0x13, + 0x7D,0x74,0x6F,0x66,0x59,0x50,0x4B,0x42,0x35,0x3C,0x27,0x2E,0x11,0x18,0x03,0x0A, + 0x56,0x5F,0x44,0x4D,0x72,0x7B,0x60,0x69,0x1E,0x17,0x0C,0x05,0x3A,0x33,0x28,0x21, + 0x4F,0x46,0x5D,0x54,0x6B,0x62,0x79,0x70,0x07,0x0E,0x15,0x1C,0x23,0x2A,0x31,0x38, + 0x41,0x48,0x53,0x5A,0x65,0x6C,0x77,0x7E,0x09,0x00,0x1B,0x12,0x2D,0x24,0x3F,0x36, + 0x58,0x51,0x4A,0x43,0x7C,0x75,0x6E,0x67,0x10,0x19,0x02,0x0B,0x34,0x3D,0x26,0x2F, + 0x73,0x7A,0x61,0x68,0x57,0x5E,0x45,0x4C,0x3B,0x32,0x29,0x20,0x1F,0x16,0x0D,0x04, + 0x6A,0x63,0x78,0x71,0x4E,0x47,0x5C,0x55,0x22,0x2B,0x30,0x39,0x06,0x0F,0x14,0x1D, + 0x25,0x2C,0x37,0x3E,0x01,0x08,0x13,0x1A,0x6D,0x64,0x7F,0x76,0x49,0x40,0x5B,0x52, + 0x3C,0x35,0x2E,0x27,0x18,0x11,0x0A,0x03,0x74,0x7D,0x66,0x6F,0x50,0x59,0x42,0x4B, + 0x17,0x1E,0x05,0x0C,0x33,0x3A,0x21,0x28,0x5F,0x56,0x4D,0x44,0x7B,0x72,0x69,0x60, + 0x0E,0x07,0x1C,0x15,0x2A,0x23,0x38,0x31,0x46,0x4F,0x54,0x5D,0x62,0x6B,0x70,0x79 + }; + + static uint8_t CRC7(const uint8_t* data, uint8_t n) { + uint8_t crc = 0; + while (n > 0) { + crc = pgm_read_byte(&crctab7[ (crc << 1) ^ *data++ ]); + n--; + } + return (crc << 1) | 1; + } + #else + static uint8_t CRC7(const uint8_t* data, uint8_t n) { + uint8_t crc = 0; + LOOP_L_N(i, n) { + uint8_t d = data[i]; + d ^= crc << 1; + if (d & 0x80) d ^= 9; + crc = d ^ (crc & 0x78) ^ (crc << 4) ^ ((crc >> 3) & 15); + crc &= 0x7F; + } + crc = (crc << 1) ^ (crc << 4) ^ (crc & 0x70) ^ ((crc >> 3) & 0x0F); + return crc | 1; + } + #endif +#endif + +// Send command and return error code. Return zero for OK +uint8_t Sd2Card::cardCommand(const uint8_t cmd, const uint32_t arg) { + // Select card + chipSelect(); + + // Wait up to 300 ms if busy + waitNotBusy(SD_WRITE_TIMEOUT); + + uint8_t *pa = (uint8_t *)(&arg); + + #if ENABLED(SD_CHECK_AND_RETRY) + + // Form message + uint8_t d[6] = {(uint8_t) (cmd | 0x40), pa[3], pa[2], pa[1], pa[0] }; + + // Add crc + d[5] = CRC7(d, 5); + + // Send message + LOOP_L_N(k, 6) spiSend(d[k]); + + #else + // Send command + spiSend(cmd | 0x40); + + // Send argument + for (int8_t i = 3; i >= 0; i--) spiSend(pa[i]); + + // Send CRC - correct for CMD0 with arg zero or CMD8 with arg 0X1AA + spiSend(cmd == CMD0 ? 0X95 : 0X87); + #endif + + // Skip stuff byte for stop read + if (cmd == CMD12) spiRec(); + + // Wait for response + for (uint8_t i = 0; ((status_ = spiRec()) & 0x80) && i != 0xFF; i++) { /* Intentionally left empty */ } + return status_; +} + +/** + * Determine the size of an SD flash memory card. + * + * \return The number of 512 byte data blocks in the card + * or zero if an error occurs. + */ +uint32_t Sd2Card::cardSize() { + csd_t csd; + if (!readCSD(&csd)) return 0; + if (csd.v1.csd_ver == 0) { + uint8_t read_bl_len = csd.v1.read_bl_len; + uint16_t c_size = (csd.v1.c_size_high << 10) + | (csd.v1.c_size_mid << 2) | csd.v1.c_size_low; + uint8_t c_size_mult = (csd.v1.c_size_mult_high << 1) + | csd.v1.c_size_mult_low; + return (uint32_t)(c_size + 1) << (c_size_mult + read_bl_len - 7); + } + else if (csd.v2.csd_ver == 1) { + uint32_t c_size = ((uint32_t)csd.v2.c_size_high << 16) + | (csd.v2.c_size_mid << 8) | csd.v2.c_size_low; + return (c_size + 1) << 10; + } + else { + error(SD_CARD_ERROR_BAD_CSD); + return 0; + } +} + +void Sd2Card::chipDeselect() { + extDigitalWrite(chipSelectPin_, HIGH); + spiSend(0xFF); // Ensure MISO goes high impedance +} + +void Sd2Card::chipSelect() { + spiInit(spiRate_); + extDigitalWrite(chipSelectPin_, LOW); +} + +/** + * Erase a range of blocks. + * + * \param[in] firstBlock The address of the first block in the range. + * \param[in] lastBlock The address of the last block in the range. + * + * \note This function requests the SD card to do a flash erase for a + * range of blocks. The data on the card after an erase operation is + * either 0 or 1, depends on the card vendor. The card must support + * single block erase. + * + * \return true for success, false for failure. + */ +bool Sd2Card::erase(uint32_t firstBlock, uint32_t lastBlock) { + if (ENABLED(SDCARD_READONLY)) return false; + + csd_t csd; + if (!readCSD(&csd)) goto FAIL; + + // check for single block erase + if (!csd.v1.erase_blk_en) { + // erase size mask + uint8_t m = (csd.v1.sector_size_high << 1) | csd.v1.sector_size_low; + if ((firstBlock & m) != 0 || ((lastBlock + 1) & m) != 0) { + // error card can't erase specified area + error(SD_CARD_ERROR_ERASE_SINGLE_BLOCK); + goto FAIL; + } + } + if (type_ != SD_CARD_TYPE_SDHC) { firstBlock <<= 9; lastBlock <<= 9; } + if (cardCommand(CMD32, firstBlock) || cardCommand(CMD33, lastBlock) || cardCommand(CMD38, 0)) { + error(SD_CARD_ERROR_ERASE); + goto FAIL; + } + if (!waitNotBusy(SD_ERASE_TIMEOUT)) { + error(SD_CARD_ERROR_ERASE_TIMEOUT); + goto FAIL; + } + chipDeselect(); + return true; + FAIL: + chipDeselect(); + return false; +} + +/** + * Determine if card supports single block erase. + * + * \return true if single block erase is supported. + * false if single block erase is not supported. + */ +bool Sd2Card::eraseSingleBlockEnable() { + csd_t csd; + return readCSD(&csd) ? csd.v1.erase_blk_en : false; +} + +/** + * Initialize an SD flash memory card. + * + * \param[in] sckRateID SPI clock rate selector. See setSckRate(). + * \param[in] chipSelectPin SD chip select pin number. + * + * \return true for success, false for failure. + * The reason for failure can be determined by calling errorCode() and errorData(). + */ +bool Sd2Card::init(const uint8_t sckRateID, const pin_t chipSelectPin) { + #if IS_TEENSY_35_36 || IS_TEENSY_40_41 + chipSelectPin_ = BUILTIN_SDCARD; + const uint8_t ret = SDHC_CardInit(); + type_ = SDHC_CardGetType(); + return (ret == 0); + #endif + + errorCode_ = type_ = 0; + chipSelectPin_ = chipSelectPin; + // 16-bit init start time allows over a minute + const millis_t init_timeout = millis() + SD_INIT_TIMEOUT; + uint32_t arg; + + watchdog_refresh(); // In case init takes too long + + // Set pin modes + #if ENABLED(ZONESTAR_12864OLED) + if (chipSelectPin_ != DOGLCD_CS) { + SET_OUTPUT(DOGLCD_CS); + WRITE(DOGLCD_CS, HIGH); + } + #else + extDigitalWrite(chipSelectPin_, HIGH); // For some CPUs pinMode can write the wrong data so init desired data value first + pinMode(chipSelectPin_, OUTPUT); // Solution for #8746 by @benlye + #endif + spiBegin(); + + // Set SCK rate for initialization commands + spiRate_ = SPI_SD_INIT_RATE; + spiInit(spiRate_); + + // Must supply min of 74 clock cycles with CS high. + LOOP_L_N(i, 10) spiSend(0xFF); + + watchdog_refresh(); // In case init takes too long + + // Command to go idle in SPI mode + while ((status_ = cardCommand(CMD0, 0)) != R1_IDLE_STATE) { + if (ELAPSED(millis(), init_timeout)) { + error(SD_CARD_ERROR_CMD0); + goto FAIL; + } + } + + #if ENABLED(SD_CHECK_AND_RETRY) + crcSupported = (cardCommand(CMD59, 1) == R1_IDLE_STATE); + #endif + + watchdog_refresh(); // In case init takes too long + + // check SD version + for (;;) { + if (cardCommand(CMD8, 0x1AA) == (R1_ILLEGAL_COMMAND | R1_IDLE_STATE)) { + type(SD_CARD_TYPE_SD1); + break; + } + + // Get the last byte of r7 response + LOOP_L_N(i, 4) status_ = spiRec(); + if (status_ == 0xAA) { + type(SD_CARD_TYPE_SD2); + break; + } + + if (ELAPSED(millis(), init_timeout)) { + error(SD_CARD_ERROR_CMD8); + goto FAIL; + } + } + + watchdog_refresh(); // In case init takes too long + + // Initialize card and send host supports SDHC if SD2 + arg = type() == SD_CARD_TYPE_SD2 ? 0x40000000 : 0; + while ((status_ = cardAcmd(ACMD41, arg)) != R1_READY_STATE) { + // Check for timeout + if (ELAPSED(millis(), init_timeout)) { + error(SD_CARD_ERROR_ACMD41); + goto FAIL; + } + } + // If SD2 read OCR register to check for SDHC card + if (type() == SD_CARD_TYPE_SD2) { + if (cardCommand(CMD58, 0)) { + error(SD_CARD_ERROR_CMD58); + goto FAIL; + } + if ((spiRec() & 0xC0) == 0xC0) type(SD_CARD_TYPE_SDHC); + // Discard rest of ocr - contains allowed voltage range + LOOP_L_N(i, 3) spiRec(); + } + chipDeselect(); + + return setSckRate(sckRateID); + + FAIL: + chipDeselect(); + return false; +} + +/** + * Read a 512 byte block from an SD card. + * + * \param[in] blockNumber Logical block to be read. + * \param[out] dst Pointer to the location that will receive the data. + * \return true for success, false for failure. + */ +bool Sd2Card::readBlock(uint32_t blockNumber, uint8_t* dst) { + #if IS_TEENSY_35_36 || IS_TEENSY_40_41 + return 0 == SDHC_CardReadBlock(dst, blockNumber); + #endif + + if (type() != SD_CARD_TYPE_SDHC) blockNumber <<= 9; // Use address if not SDHC card + + #if ENABLED(SD_CHECK_AND_RETRY) + uint8_t retryCnt = 3; + for (;;) { + if (cardCommand(CMD17, blockNumber)) + error(SD_CARD_ERROR_CMD17); + else if (readData(dst, 512)) + return true; + + chipDeselect(); + if (!--retryCnt) break; + + cardCommand(CMD12, 0); // Try sending a stop command, ignore the result. + errorCode_ = 0; + } + return false; + #else + if (cardCommand(CMD17, blockNumber)) { + error(SD_CARD_ERROR_CMD17); + chipDeselect(); + return false; + } + else + return readData(dst, 512); + #endif +} + +/** + * Read one data block in a multiple block read sequence + * + * \param[in] dst Pointer to the location for the data to be read. + * + * \return true for success, false for failure. + */ +bool Sd2Card::readData(uint8_t* dst) { + chipSelect(); + return readData(dst, 512); +} + +#if ENABLED(SD_CHECK_AND_RETRY) + #ifdef FAST_CRC + static const uint16_t crctab16[] PROGMEM = { + 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7, + 0x8108, 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF, + 0x1231, 0x0210, 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6, + 0x9339, 0x8318, 0xB37B, 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE, + 0x2462, 0x3443, 0x0420, 0x1401, 0x64E6, 0x74C7, 0x44A4, 0x5485, + 0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, 0xF5CF, 0xC5AC, 0xD58D, + 0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, 0x5695, 0x46B4, + 0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, 0xC7BC, + 0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823, + 0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B, + 0x5AF5, 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12, + 0xDBFD, 0xCBDC, 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A, + 0x6CA6, 0x7C87, 0x4CE4, 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41, + 0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, 0xAD2A, 0xBD0B, 0x8D68, 0x9D49, + 0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, 0x2E32, 0x1E51, 0x0E70, + 0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, 0x9F59, 0x8F78, + 0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, 0xE16F, + 0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067, + 0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E, + 0x02B1, 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256, + 0xB5EA, 0xA5CB, 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D, + 0x34E2, 0x24C3, 0x14A0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, + 0xA7DB, 0xB7FA, 0x8799, 0x97B8, 0xE75F, 0xF77E, 0xC71D, 0xD73C, + 0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, 0x7676, 0x4615, 0x5634, + 0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, 0xB98A, 0xA9AB, + 0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, 0x28A3, + 0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A, + 0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92, + 0xFD2E, 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9, + 0x7C26, 0x6C07, 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1, + 0xEF1F, 0xFF3E, 0xCF5D, 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8, + 0x6E17, 0x7E36, 0x4E55, 0x5E74, 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0 + }; + // faster CRC-CCITT + // uses the x^16,x^12,x^5,x^1 polynomial. + static uint16_t CRC_CCITT(const uint8_t* data, size_t n) { + uint16_t crc = 0; + for (size_t i = 0; i < n; i++) { + crc = pgm_read_word(&crctab16[(crc >> 8 ^ data[i]) & 0xFF]) ^ (crc << 8); + } + return crc; + } + #else + // slower CRC-CCITT + // uses the x^16,x^12,x^5,x^1 polynomial. + static uint16_t CRC_CCITT(const uint8_t* data, size_t n) { + uint16_t crc = 0; + for (size_t i = 0; i < n; i++) { + crc = (uint8_t)(crc >> 8) | (crc << 8); + crc ^= data[i]; + crc ^= (uint8_t)(crc & 0xFF) >> 4; + crc ^= crc << 12; + crc ^= (crc & 0xFF) << 5; + } + return crc; + } + #endif +#endif // SD_CHECK_AND_RETRY + +bool Sd2Card::readData(uint8_t* dst, const uint16_t count) { + bool success = false; + + const millis_t read_timeout = millis() + SD_READ_TIMEOUT; + while ((status_ = spiRec()) == 0xFF) { // Wait for start block token + if (ELAPSED(millis(), read_timeout)) { + error(SD_CARD_ERROR_READ_TIMEOUT); + goto FAIL; + } + } + + if (status_ == DATA_START_BLOCK) { + spiRead(dst, count); // Transfer data + + const uint16_t recvCrc = (spiRec() << 8) | spiRec(); + #if ENABLED(SD_CHECK_AND_RETRY) + success = !crcSupported || recvCrc == CRC_CCITT(dst, count); + if (!success) error(SD_CARD_ERROR_READ_CRC); + #else + success = true; + UNUSED(recvCrc); + #endif + } + else + error(SD_CARD_ERROR_READ); + + FAIL: + chipDeselect(); + return success; +} + +/** read CID or CSR register */ +bool Sd2Card::readRegister(const uint8_t cmd, void* buf) { + uint8_t* dst = reinterpret_cast<uint8_t*>(buf); + if (cardCommand(cmd, 0)) { + error(SD_CARD_ERROR_READ_REG); + chipDeselect(); + return false; + } + return readData(dst, 16); +} + +/** + * Start a read multiple blocks sequence. + * + * \param[in] blockNumber Address of first block in sequence. + * + * \note This function is used with readData() and readStop() for optimized + * multiple block reads. SPI chipSelect must be low for the entire sequence. + * + * \return true for success, false for failure. + */ +bool Sd2Card::readStart(uint32_t blockNumber) { + if (type() != SD_CARD_TYPE_SDHC) blockNumber <<= 9; + + const bool success = !cardCommand(CMD18, blockNumber); + if (!success) error(SD_CARD_ERROR_CMD18); + chipDeselect(); + return success; +} + +/** + * End a read multiple blocks sequence. + * + * \return true for success, false for failure. + */ +bool Sd2Card::readStop() { + chipSelect(); + const bool success = !cardCommand(CMD12, 0); + if (!success) error(SD_CARD_ERROR_CMD12); + chipDeselect(); + return success; +} + +/** + * Set the SPI clock rate. + * + * \param[in] sckRateID A value in the range [0, 6]. + * + * The SPI clock will be set to F_CPU/pow(2, 1 + sckRateID). The maximum + * SPI rate is F_CPU/2 for \a sckRateID = 0 and the minimum rate is F_CPU/128 + * for \a scsRateID = 6. + * + * \return The value one, true, is returned for success and the value zero, + * false, is returned for an invalid value of \a sckRateID. + */ +bool Sd2Card::setSckRate(const uint8_t sckRateID) { + const bool success = (sckRateID <= 6); + if (success) spiRate_ = sckRateID; else error(SD_CARD_ERROR_SCK_RATE); + return success; +} + +/** + * Wait for card to become not-busy + * \param[in] timeout_ms Timeout to abort. + * \return true for success, false for timeout. + */ +bool Sd2Card::waitNotBusy(const millis_t timeout_ms) { + const millis_t wait_timeout = millis() + timeout_ms; + while (spiRec() != 0xFF) if (ELAPSED(millis(), wait_timeout)) return false; + return true; +} + +/** + * Write a 512 byte block to an SD card. + * + * \param[in] blockNumber Logical block to be written. + * \param[in] src Pointer to the location of the data to be written. + * \return true for success, false for failure. + */ +bool Sd2Card::writeBlock(uint32_t blockNumber, const uint8_t* src) { + if (ENABLED(SDCARD_READONLY)) return false; + + #if IS_TEENSY_35_36 || IS_TEENSY_40_41 + return 0 == SDHC_CardWriteBlock(src, blockNumber); + #endif + + bool success = false; + if (type() != SD_CARD_TYPE_SDHC) blockNumber <<= 9; // Use address if not SDHC card + if (!cardCommand(CMD24, blockNumber)) { + if (writeData(DATA_START_BLOCK, src)) { + if (waitNotBusy(SD_WRITE_TIMEOUT)) { // Wait for flashing to complete + success = !(cardCommand(CMD13, 0) || spiRec()); // Response is r2 so get and check two bytes for nonzero + if (!success) error(SD_CARD_ERROR_WRITE_PROGRAMMING); + } + else + error(SD_CARD_ERROR_WRITE_TIMEOUT); + } + } + else + error(SD_CARD_ERROR_CMD24); + + chipDeselect(); + return success; +} + +/** + * Write one data block in a multiple block write sequence + * \param[in] src Pointer to the location of the data to be written. + * \return true for success, false for failure. + */ +bool Sd2Card::writeData(const uint8_t* src) { + if (ENABLED(SDCARD_READONLY)) return false; + + bool success = true; + chipSelect(); + // Wait for previous write to finish + if (!waitNotBusy(SD_WRITE_TIMEOUT) || !writeData(WRITE_MULTIPLE_TOKEN, src)) { + error(SD_CARD_ERROR_WRITE_MULTIPLE); + success = false; + } + chipDeselect(); + return success; +} + +// Send one block of data for write block or write multiple blocks +bool Sd2Card::writeData(const uint8_t token, const uint8_t* src) { + if (ENABLED(SDCARD_READONLY)) return false; + + const uint16_t crc = TERN(SD_CHECK_AND_RETRY, CRC_CCITT(src, 512), 0xFFFF); + spiSendBlock(token, src); + spiSend(crc >> 8); + spiSend(crc & 0xFF); + + status_ = spiRec(); + if ((status_ & DATA_RES_MASK) != DATA_RES_ACCEPTED) { + error(SD_CARD_ERROR_WRITE); + chipDeselect(); + return false; + } + return true; +} + +/** + * Start a write multiple blocks sequence. + * + * \param[in] blockNumber Address of first block in sequence. + * \param[in] eraseCount The number of blocks to be pre-erased. + * + * \note This function is used with writeData() and writeStop() + * for optimized multiple block writes. + * + * \return true for success, false for failure. + */ +bool Sd2Card::writeStart(uint32_t blockNumber, const uint32_t eraseCount) { + if (ENABLED(SDCARD_READONLY)) return false; + + bool success = false; + if (!cardAcmd(ACMD23, eraseCount)) { // Send pre-erase count + if (type() != SD_CARD_TYPE_SDHC) blockNumber <<= 9; // Use address if not SDHC card + success = !cardCommand(CMD25, blockNumber); + if (!success) error(SD_CARD_ERROR_CMD25); + } + else + error(SD_CARD_ERROR_ACMD23); + + chipDeselect(); + return success; +} + +/** + * End a write multiple blocks sequence. + * + * \return true for success, false for failure. + */ +bool Sd2Card::writeStop() { + if (ENABLED(SDCARD_READONLY)) return false; + + bool success = false; + chipSelect(); + if (waitNotBusy(SD_WRITE_TIMEOUT)) { + spiSend(STOP_TRAN_TOKEN); + success = waitNotBusy(SD_WRITE_TIMEOUT); + } + else + error(SD_CARD_ERROR_STOP_TRAN); + + chipDeselect(); + return success; +} + +#endif // SDSUPPORT |