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[X9D] Massstorage is working, WOW!

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bsongis
2013-03-12 22:00:16 +00:00
parent f9b9a5497c 74eb65117d
commit d92f6d4978
68 changed files with 21300 additions and 11 deletions
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src/x9d/diskio.cpp
+43
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@@ -645,6 +645,28 @@ DSTATUS disk_status (
/* Read Sector(s) */
/*-----------------------------------------------------------------------*/
extern "C" {
// TODO quick & dirty
int8_t SD_ReadSectors(uint8_t *buff, uint32_t sector, uint32_t count)
{
if (!(CardType & CT_BLOCK)) sector *= 512; /* Convert to byte address if needed */
if (send_cmd(CMD18, sector) == 0) { /* READ_MULTIPLE_BLOCK */
do {
if (!rcvr_datablock(buff, 512)) {
break;
}
buff += 512;
} while (--count);
send_cmd(CMD12, 0); /* STOP_TRANSMISSION */
}
release_spi();
return 0;
}
}
DRESULT disk_read (
BYTE drv, /* Physical drive number (0) */
BYTE *buff, /* Pointer to the data buffer to store read data */
@@ -688,6 +710,27 @@ DRESULT disk_read (
#if _FS_READONLY == 0
extern "C" {
// TODO quick & dirty
int8_t SD_WriteSectors(uint8_t *buff, uint32_t sector, uint32_t count)
{
if (!(CardType & CT_BLOCK)) sector *= 512; /* Convert to byte address if needed */
if (CardType & CT_SDC) send_cmd(ACMD23, count);
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)) /* STOP_TRAN token */
count = 1;
}
release_spi();
return 0;
}
}
DRESULT disk_write (
BYTE drv, /* Physical drive number (0) */
const BYTE *buff, /* Pointer to the data to be written */