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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 <http://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) {
- 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) {
- 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
- 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
- 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 (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 (type() != SD_CARD_TYPE_SDHC) blockNumber <<= 9; // Use address if not SDHC card
-
- bool success = false;
- 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) {
- 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) {
-
- uint16_t crc =
- #if ENABLED(SD_CHECK_AND_RETRY)
- CRC_CCITT(src, 512)
- #else
- 0xFFFF
- #endif
- ;
- 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) {
- 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() {
- 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
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