You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
571 lines
21 KiB
571 lines
21 KiB
/**
|
|
* STM32F1: MMCv3/SDv1/SDv2 (SPI mode) control module
|
|
*
|
|
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
|
|
* Copyright (c) 2019 BigTreeTech [https://github.com/bigtreetech]
|
|
* Copyright (C) 2015, ChaN, all right reserved.
|
|
*
|
|
* This software is a free software and there is NO WARRANTY.
|
|
* No restriction on use. You can use, modify and redistribute it for
|
|
* personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
|
|
* Redistributions of source code must retain the above copyright notice.
|
|
*/
|
|
|
|
#ifdef __STM32F1__
|
|
|
|
#if DISABLED(MKS_WIFI)
|
|
|
|
#include "../../inc/MarlinConfig.h"
|
|
|
|
#if SD_CONNECTION_IS(ONBOARD)
|
|
|
|
#include "onboard_sd.h"
|
|
#include "SPI.h"
|
|
#include "fastio.h"
|
|
|
|
#ifndef ONBOARD_SPI_DEVICE
|
|
#define ONBOARD_SPI_DEVICE SPI_DEVICE
|
|
#endif
|
|
|
|
#if HAS_SD_HOST_DRIVE
|
|
#define ONBOARD_SD_SPI SPI
|
|
#else
|
|
SPIClass OnboardSPI(ONBOARD_SPI_DEVICE);
|
|
#define ONBOARD_SD_SPI OnboardSPI
|
|
#endif
|
|
|
|
#if ONBOARD_SPI_DEVICE == 1
|
|
#define SPI_CLOCK_MAX SPI_BAUD_PCLK_DIV_4
|
|
#else
|
|
#define SPI_CLOCK_MAX SPI_BAUD_PCLK_DIV_2
|
|
#endif
|
|
|
|
#define CS_LOW() WRITE(ONBOARD_SD_CS_PIN, LOW) // Set OnboardSPI cs low
|
|
#define CS_HIGH() WRITE(ONBOARD_SD_CS_PIN, HIGH) // Set OnboardSPI cs high
|
|
|
|
#define FCLK_FAST() ONBOARD_SD_SPI.setClockDivider(SPI_CLOCK_MAX)
|
|
#define FCLK_SLOW() ONBOARD_SD_SPI.setClockDivider(SPI_BAUD_PCLK_DIV_256)
|
|
|
|
/*--------------------------------------------------------------------------
|
|
Module Private Functions
|
|
---------------------------------------------------------------------------*/
|
|
|
|
/* MMC/SD command */
|
|
#define CMD0 (0) // GO_IDLE_STATE
|
|
#define CMD1 (1) // SEND_OP_COND (MMC)
|
|
#define ACMD41 (0x80+41) // SEND_OP_COND (SDC)
|
|
#define CMD8 (8) // SEND_IF_COND
|
|
#define CMD9 (9) // SEND_CSD
|
|
#define CMD10 (10) // SEND_CID
|
|
#define CMD12 (12) // STOP_TRANSMISSION
|
|
#define ACMD13 (0x80+13) // SD_STATUS (SDC)
|
|
#define CMD16 (16) // SET_BLOCKLEN
|
|
#define CMD17 (17) // READ_SINGLE_BLOCK
|
|
#define CMD18 (18) // READ_MULTIPLE_BLOCK
|
|
#define CMD23 (23) // SET_BLOCK_COUNT (MMC)
|
|
#define ACMD23 (0x80+23) // SET_WR_BLK_ERASE_COUNT (SDC)
|
|
#define CMD24 (24) // WRITE_BLOCK
|
|
#define CMD25 (25) // WRITE_MULTIPLE_BLOCK
|
|
#define CMD32 (32) // ERASE_ER_BLK_START
|
|
#define CMD33 (33) // ERASE_ER_BLK_END
|
|
#define CMD38 (38) // ERASE
|
|
#define CMD48 (48) // READ_EXTR_SINGLE
|
|
#define CMD49 (49) // WRITE_EXTR_SINGLE
|
|
#define CMD55 (55) // APP_CMD
|
|
#define CMD58 (58) // READ_OCR
|
|
|
|
static volatile DSTATUS Stat = STA_NOINIT; // Physical drive status
|
|
static volatile UINT timeout;
|
|
static BYTE CardType; // Card type flags
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Send/Receive data to the MMC (Platform dependent) */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
/* Exchange a byte */
|
|
static BYTE xchg_spi (
|
|
BYTE dat // Data to send
|
|
) {
|
|
BYTE returnByte = ONBOARD_SD_SPI.transfer(dat);
|
|
return returnByte;
|
|
}
|
|
|
|
/* Receive multiple byte */
|
|
static void rcvr_spi_multi (
|
|
BYTE *buff, // Pointer to data buffer
|
|
UINT btr // Number of bytes to receive (16, 64 or 512)
|
|
) {
|
|
ONBOARD_SD_SPI.dmaTransfer(0, const_cast<uint8_t*>(buff), btr);
|
|
}
|
|
|
|
#if _DISKIO_WRITE
|
|
|
|
// Send multiple bytes
|
|
static void xmit_spi_multi (
|
|
const BYTE *buff, // Pointer to the data
|
|
UINT btx // Number of bytes to send (multiple of 16)
|
|
) {
|
|
ONBOARD_SD_SPI.dmaSend(const_cast<uint8_t*>(buff), btx);
|
|
}
|
|
|
|
#endif // _DISKIO_WRITE
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Wait for card ready */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
static int wait_ready ( // 1:Ready, 0:Timeout
|
|
UINT wt // Timeout [ms]
|
|
) {
|
|
BYTE d;
|
|
timeout = millis() + wt;
|
|
do {
|
|
d = xchg_spi(0xFF);
|
|
// This loop takes a while. Insert rot_rdq() here for multitask environment.
|
|
} while (d != 0xFF && (timeout > millis())); // Wait for card goes ready or timeout
|
|
|
|
return (d == 0xFF) ? 1 : 0;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Deselect card and release SPI */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
static void deselect() {
|
|
CS_HIGH(); // CS = H
|
|
xchg_spi(0xFF); // Dummy clock (force DO hi-z for multiple slave SPI)
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Select card and wait for ready */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
static int select() { // 1:OK, 0:Timeout
|
|
CS_LOW(); // CS = L
|
|
xchg_spi(0xFF); // Dummy clock (force DO enabled)
|
|
|
|
if (wait_ready(500)) return 1; // Leading busy check: Wait for card ready
|
|
|
|
deselect(); // Timeout
|
|
return 0;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Control SPI module (Platform dependent) */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
// Enable SSP module and attach it to I/O pads
|
|
static void sd_power_on() {
|
|
ONBOARD_SD_SPI.setModule(ONBOARD_SPI_DEVICE);
|
|
ONBOARD_SD_SPI.begin();
|
|
ONBOARD_SD_SPI.setBitOrder(MSBFIRST);
|
|
ONBOARD_SD_SPI.setDataMode(SPI_MODE0);
|
|
CS_HIGH();
|
|
}
|
|
|
|
// Disable SPI function
|
|
static void sd_power_off() {
|
|
select(); // Wait for card ready
|
|
deselect();
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Receive a data packet from the MMC */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
static int rcvr_datablock ( // 1:OK, 0:Error
|
|
BYTE *buff, // Data buffer
|
|
UINT btr // Data block length (byte)
|
|
) {
|
|
BYTE token;
|
|
|
|
timeout = millis() + 200;
|
|
do { // Wait for DataStart token in timeout of 200ms
|
|
token = xchg_spi(0xFF);
|
|
// This loop will take a while. Insert rot_rdq() here for multitask environment.
|
|
} while ((token == 0xFF) && (timeout > millis()));
|
|
if (token != 0xFE) return 0; // Function fails if invalid DataStart token or timeout
|
|
|
|
rcvr_spi_multi(buff, btr); // Store trailing data to the buffer
|
|
xchg_spi(0xFF); xchg_spi(0xFF); // Discard CRC
|
|
|
|
return 1; // Function succeeded
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Send a data packet to the MMC */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
#if _DISKIO_WRITE
|
|
|
|
static int xmit_datablock( // 1:OK, 0:Failed
|
|
const BYTE *buff, // Pointer to 512 byte data to be sent
|
|
BYTE token // Token
|
|
) {
|
|
BYTE resp;
|
|
|
|
if (!wait_ready(500)) return 0; // Leading busy check: Wait for card ready to accept data block
|
|
|
|
xchg_spi(token); // Send token
|
|
if (token == 0xFD) return 1; // Do not send data if token is StopTran
|
|
|
|
xmit_spi_multi(buff, 512); // Data
|
|
xchg_spi(0xFF); xchg_spi(0xFF); // Dummy CRC
|
|
|
|
resp = xchg_spi(0xFF); // Receive data resp
|
|
|
|
return (resp & 0x1F) == 0x05 ? 1 : 0; // Data was accepted or not
|
|
|
|
// Busy check is done at next transmission
|
|
}
|
|
|
|
#endif // _DISKIO_WRITE
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Send a command packet to the MMC */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
static BYTE send_cmd( // Return value: R1 resp (bit7==1:Failed to send)
|
|
BYTE cmd, // Command index
|
|
DWORD arg // Argument
|
|
) {
|
|
BYTE n, res;
|
|
|
|
if (cmd & 0x80) { // Send a CMD55 prior to ACMD<n>
|
|
cmd &= 0x7F;
|
|
res = send_cmd(CMD55, 0);
|
|
if (res > 1) return res;
|
|
}
|
|
|
|
// Select the card and wait for ready except to stop multiple block read
|
|
if (cmd != CMD12) {
|
|
deselect();
|
|
if (!select()) return 0xFF;
|
|
}
|
|
|
|
// Send command packet
|
|
xchg_spi(0x40 | cmd); // Start + command index
|
|
xchg_spi((BYTE)(arg >> 24)); // Argument[31..24]
|
|
xchg_spi((BYTE)(arg >> 16)); // Argument[23..16]
|
|
xchg_spi((BYTE)(arg >> 8)); // Argument[15..8]
|
|
xchg_spi((BYTE)arg); // Argument[7..0]
|
|
n = 0x01; // Dummy CRC + Stop
|
|
if (cmd == CMD0) n = 0x95; // Valid CRC for CMD0(0)
|
|
if (cmd == CMD8) n = 0x87; // Valid CRC for CMD8(0x1AA)
|
|
xchg_spi(n);
|
|
|
|
// Receive command response
|
|
if (cmd == CMD12) xchg_spi(0xFF); // Discard the following byte when CMD12
|
|
n = 10; // Wait for response (10 bytes max)
|
|
do
|
|
res = xchg_spi(0xFF);
|
|
while ((res & 0x80) && --n);
|
|
|
|
return res; // Return received response
|
|
}
|
|
|
|
/*--------------------------------------------------------------------------
|
|
Public Functions
|
|
---------------------------------------------------------------------------*/
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Initialize disk drive */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
DSTATUS disk_initialize (
|
|
BYTE drv // Physical drive number (0)
|
|
) {
|
|
BYTE n, cmd, ty, ocr[4];
|
|
|
|
if (drv) return STA_NOINIT; // Supports only drive 0
|
|
sd_power_on(); // Initialize SPI
|
|
|
|
if (Stat & STA_NODISK) return Stat; // Is a card existing in the socket?
|
|
|
|
FCLK_SLOW();
|
|
for (n = 10; n; n--) xchg_spi(0xFF); // Send 80 dummy clocks
|
|
|
|
ty = 0;
|
|
if (send_cmd(CMD0, 0) == 1) { // Put the card SPI state
|
|
timeout = millis() + 1000; // Initialization timeout = 1 sec
|
|
if (send_cmd(CMD8, 0x1AA) == 1) { // Is the catd SDv2?
|
|
for (n = 0; n < 4; n++) ocr[n] = xchg_spi(0xFF); // Get 32 bit return value of R7 resp
|
|
if (ocr[2] == 0x01 && ocr[3] == 0xAA) { // Does the card support 2.7-3.6V?
|
|
while ((timeout > millis()) && send_cmd(ACMD41, 1UL << 30)); // Wait for end of initialization with ACMD41(HCS)
|
|
if ((timeout > millis()) && send_cmd(CMD58, 0) == 0) { // Check CCS bit in the OCR
|
|
for (n = 0; n < 4; n++) ocr[n] = xchg_spi(0xFF);
|
|
ty = (ocr[0] & 0x40) ? CT_SD2 | CT_BLOCK : CT_SD2; // Check if the card is SDv2
|
|
}
|
|
}
|
|
}
|
|
else { // Not an SDv2 card
|
|
if (send_cmd(ACMD41, 0) <= 1) { // SDv1 or MMCv3?
|
|
ty = CT_SD1; cmd = ACMD41; // SDv1 (ACMD41(0))
|
|
}
|
|
else {
|
|
ty = CT_MMC; cmd = CMD1; // MMCv3 (CMD1(0))
|
|
}
|
|
while ((timeout > millis()) && send_cmd(cmd, 0)); // Wait for the card leaves idle state
|
|
if (!(timeout > millis()) || send_cmd(CMD16, 512) != 0) // Set block length: 512
|
|
ty = 0;
|
|
}
|
|
}
|
|
CardType = ty; // Card type
|
|
deselect();
|
|
|
|
if (ty) { // OK
|
|
FCLK_FAST(); // Set fast clock
|
|
Stat &= ~STA_NOINIT; // Clear STA_NOINIT flag
|
|
}
|
|
else { // Failed
|
|
sd_power_off();
|
|
Stat = STA_NOINIT;
|
|
}
|
|
|
|
return Stat;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Get disk status */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
DSTATUS disk_status (
|
|
BYTE drv // Physical drive number (0)
|
|
) {
|
|
if (drv) return STA_NOINIT; // Supports only drive 0
|
|
return Stat; // Return disk status
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Read sector(s) */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
DRESULT disk_read (
|
|
BYTE drv, // Physical drive number (0)
|
|
BYTE *buff, // Pointer to the data buffer to store read data
|
|
DWORD sector, // Start sector number (LBA)
|
|
UINT count // Number of sectors to read (1..128)
|
|
) {
|
|
BYTE cmd;
|
|
|
|
if (drv || !count) return RES_PARERR; // Check parameter
|
|
if (Stat & STA_NOINIT) return RES_NOTRDY; // Check if drive is ready
|
|
if (!(CardType & CT_BLOCK)) sector *= 512; // LBA ot BA conversion (byte addressing cards)
|
|
FCLK_FAST();
|
|
cmd = count > 1 ? CMD18 : CMD17; // READ_MULTIPLE_BLOCK : READ_SINGLE_BLOCK
|
|
if (send_cmd(cmd, sector) == 0) {
|
|
do {
|
|
if (!rcvr_datablock(buff, 512)) break;
|
|
buff += 512;
|
|
} while (--count);
|
|
if (cmd == CMD18) send_cmd(CMD12, 0); // STOP_TRANSMISSION
|
|
}
|
|
deselect();
|
|
|
|
return count ? RES_ERROR : RES_OK; // Return result
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Write sector(s) */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
#if _DISKIO_WRITE
|
|
|
|
DRESULT disk_write(
|
|
BYTE drv, // Physical drive number (0)
|
|
const BYTE *buff, // Pointer to the data to write
|
|
DWORD sector, // Start sector number (LBA)
|
|
UINT count // Number of sectors to write (1..128)
|
|
) {
|
|
if (drv || !count) return RES_PARERR; // Check parameter
|
|
if (Stat & STA_NOINIT) return RES_NOTRDY; // Check drive status
|
|
if (Stat & STA_PROTECT) return RES_WRPRT; // Check write protect
|
|
FCLK_FAST();
|
|
if (!(CardType & CT_BLOCK)) sector *= 512; // LBA ==> BA conversion (byte addressing cards)
|
|
|
|
if (count == 1) { // Single sector write
|
|
if ((send_cmd(CMD24, sector) == 0) // WRITE_BLOCK
|
|
&& xmit_datablock(buff, 0xFE)) {
|
|
count = 0;
|
|
}
|
|
}
|
|
else { // Multiple sector write
|
|
if (CardType & CT_SDC) send_cmd(ACMD23, count); // Predefine number of sectors
|
|
if (send_cmd(CMD25, sector) == 0) { // WRITE_MULTIPLE_BLOCK
|
|
do {
|
|
if (!xmit_datablock(buff, 0xFC)) break;
|
|
buff += 512;
|
|
} while (--count);
|
|
if (!xmit_datablock(0, 0xFD)) count = 1; // STOP_TRAN token
|
|
}
|
|
}
|
|
deselect();
|
|
|
|
return count ? RES_ERROR : RES_OK; // Return result
|
|
}
|
|
|
|
#endif // _DISKIO_WRITE
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Miscellaneous drive controls other than data read/write */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
#if _DISKIO_IOCTL
|
|
|
|
DRESULT disk_ioctl (
|
|
BYTE drv, // Physical drive number (0)
|
|
BYTE cmd, // Control command code
|
|
void *buff // Pointer to the conrtol data
|
|
) {
|
|
DRESULT res;
|
|
BYTE n, csd[16], *ptr = (BYTE *)buff;
|
|
DWORD *dp, st, ed, csize;
|
|
#if _DISKIO_ISDIO
|
|
SDIO_CMD *sdio = buff;
|
|
BYTE rc, *buf;
|
|
UINT dc;
|
|
#endif
|
|
|
|
if (drv) return RES_PARERR; // Check parameter
|
|
if (Stat & STA_NOINIT) return RES_NOTRDY; // Check if drive is ready
|
|
|
|
res = RES_ERROR;
|
|
FCLK_FAST();
|
|
switch (cmd) {
|
|
case CTRL_SYNC: // Wait for end of internal write process of the drive
|
|
if (select()) res = RES_OK;
|
|
break;
|
|
|
|
case GET_SECTOR_COUNT: // Get drive capacity in unit of sector (DWORD)
|
|
if ((send_cmd(CMD9, 0) == 0) && rcvr_datablock(csd, 16)) {
|
|
if ((csd[0] >> 6) == 1) { // SDC ver 2.00
|
|
csize = csd[9] + ((WORD)csd[8] << 8) + ((DWORD)(csd[7] & 63) << 16) + 1;
|
|
*(DWORD*)buff = csize << 10;
|
|
}
|
|
else { // SDC ver 1.XX or MMC ver 3
|
|
n = (csd[5] & 15) + ((csd[10] & 128) >> 7) + ((csd[9] & 3) << 1) + 2;
|
|
csize = (csd[8] >> 6) + ((WORD)csd[7] << 2) + ((WORD)(csd[6] & 3) << 10) + 1;
|
|
*(DWORD*)buff = csize << (n - 9);
|
|
}
|
|
res = RES_OK;
|
|
}
|
|
break;
|
|
|
|
case GET_BLOCK_SIZE: // Get erase block size in unit of sector (DWORD)
|
|
if (CardType & CT_SD2) { // SDC ver 2.00
|
|
if (send_cmd(ACMD13, 0) == 0) { // Read SD status
|
|
xchg_spi(0xFF);
|
|
if (rcvr_datablock(csd, 16)) { // Read partial block
|
|
for (n = 64 - 16; n; n--) xchg_spi(0xFF); // Purge trailing data
|
|
*(DWORD*)buff = 16UL << (csd[10] >> 4);
|
|
res = RES_OK;
|
|
}
|
|
}
|
|
}
|
|
else { // SDC ver 1.XX or MMC
|
|
if ((send_cmd(CMD9, 0) == 0) && rcvr_datablock(csd, 16)) { // Read CSD
|
|
if (CardType & CT_SD1) { // SDC ver 1.XX
|
|
*(DWORD*)buff = (((csd[10] & 63) << 1) + ((WORD)(csd[11] & 128) >> 7) + 1) << ((csd[13] >> 6) - 1);
|
|
}
|
|
else { // MMC
|
|
*(DWORD*)buff = ((WORD)((csd[10] & 124) >> 2) + 1) * (((csd[11] & 3) << 3) + ((csd[11] & 224) >> 5) + 1);
|
|
}
|
|
res = RES_OK;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case CTRL_TRIM: // Erase a block of sectors (used when _USE_TRIM in ffconf.h is 1)
|
|
if (!(CardType & CT_SDC)) break; // Check if the card is SDC
|
|
if (disk_ioctl(drv, MMC_GET_CSD, csd)) break; // Get CSD
|
|
if (!(csd[0] >> 6) && !(csd[10] & 0x40)) break; // Check if sector erase can be applied to the card
|
|
dp = (DWORD *)buff; st = dp[0]; ed = dp[1]; // Load sector block
|
|
if (!(CardType & CT_BLOCK)) {
|
|
st *= 512; ed *= 512;
|
|
}
|
|
if (send_cmd(CMD32, st) == 0 && send_cmd(CMD33, ed) == 0 && send_cmd(CMD38, 0) == 0 && wait_ready(30000)) { // Erase sector block
|
|
res = RES_OK; // FatFs does not check result of this command
|
|
}
|
|
break;
|
|
|
|
// The following commands are never used by FatFs module
|
|
|
|
case MMC_GET_TYPE: // Get MMC/SDC type (BYTE)
|
|
*ptr = CardType;
|
|
res = RES_OK;
|
|
break;
|
|
|
|
case MMC_GET_CSD: // Read CSD (16 bytes)
|
|
if (send_cmd(CMD9, 0) == 0 && rcvr_datablock(ptr, 16)) {
|
|
res = RES_OK;
|
|
}
|
|
break;
|
|
|
|
case MMC_GET_CID: // Read CID (16 bytes)
|
|
if (send_cmd(CMD10, 0) == 0 && rcvr_datablock(ptr, 16)) {
|
|
res = RES_OK;
|
|
}
|
|
break;
|
|
|
|
case MMC_GET_OCR: // Read OCR (4 bytes)
|
|
if (send_cmd(CMD58, 0) == 0) {
|
|
for (n = 4; n; n--) *ptr++ = xchg_spi(0xFF);
|
|
res = RES_OK;
|
|
}
|
|
break;
|
|
|
|
case MMC_GET_SDSTAT: // Read SD status (64 bytes)
|
|
if (send_cmd(ACMD13, 0) == 0) {
|
|
xchg_spi(0xFF);
|
|
if (rcvr_datablock(ptr, 64)) res = RES_OK;
|
|
}
|
|
break;
|
|
|
|
#if _DISKIO_ISDIO
|
|
|
|
case ISDIO_READ:
|
|
sdio = buff;
|
|
if (send_cmd(CMD48, 0x80000000 | sdio->func << 28 | sdio->addr << 9 | ((sdio->ndata - 1) & 0x1FF)) == 0) {
|
|
for (Timer1 = 1000; (rc = xchg_spi(0xFF)) == 0xFF && Timer1; ) ;
|
|
if (rc == 0xFE) {
|
|
for (buf = sdio->data, dc = sdio->ndata; dc; dc--) *buf++ = xchg_spi(0xFF);
|
|
for (dc = 514 - sdio->ndata; dc; dc--) xchg_spi(0xFF);
|
|
res = RES_OK;
|
|
}
|
|
}
|
|
break;
|
|
case ISDIO_WRITE:
|
|
sdio = buff;
|
|
if (send_cmd(CMD49, 0x80000000 | sdio->func << 28 | sdio->addr << 9 | ((sdio->ndata - 1) & 0x1FF)) == 0) {
|
|
xchg_spi(0xFF); xchg_spi(0xFE);
|
|
for (buf = sdio->data, dc = sdio->ndata; dc; dc--) xchg_spi(*buf++);
|
|
for (dc = 514 - sdio->ndata; dc; dc--) xchg_spi(0xFF);
|
|
if ((xchg_spi(0xFF) & 0x1F) == 0x05) res = RES_OK;
|
|
}
|
|
break;
|
|
case ISDIO_MRITE:
|
|
sdio = buff;
|
|
if (send_cmd(CMD49, 0x84000000 | sdio->func << 28 | sdio->addr << 9 | sdio->ndata >> 8) == 0) {
|
|
xchg_spi(0xFF); xchg_spi(0xFE);
|
|
xchg_spi(sdio->ndata);
|
|
for (dc = 513; dc; dc--) xchg_spi(0xFF);
|
|
if ((xchg_spi(0xFF) & 0x1F) == 0x05) res = RES_OK;
|
|
}
|
|
break;
|
|
|
|
#endif // _DISKIO_ISDIO
|
|
|
|
default: res = RES_PARERR;
|
|
}
|
|
|
|
deselect();
|
|
return res;
|
|
}
|
|
|
|
#endif // _DISKIO_IOCTL
|
|
|
|
#endif // SD_CONNECTION_IS(ONBOARD)
|
|
|
|
#endif
|
|
|
|
#endif // __STM32F1__
|
|
|