ossc/software/sys_controller/memory/sdcard.c

107 lines
3.0 KiB
C

//
// Copyright (C) 2015-2016 Markus Hiienkari <mhiienka@niksula.hut.fi>
//
// This file is part of Open Source Scan Converter project.
//
// 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/>.
//
#include <io.h>
#include <string.h>
#include "sdcard.h"
#include "flash.h"
#include "utils.h"
extern alt_flash_dev *epcq_dev;
SD_DEV sdcard_dev;
int check_sdcard(alt_u8 *databuf)
{
SDRESULTS res;
res = SD_Init(&sdcard_dev);
printf("SD det status: %u\n", res);
if (res == SD_OK)
res = SD_Read(&sdcard_dev, databuf, 0, 0, 512);
return -res;
}
int copy_sd_to_flash(alt_u32 sd_blknum, alt_u32 flash_pagenum, alt_u32 length, alt_u8 *tmpbuf)
{
SDRESULTS res;
int retval, i;
alt_u32 bytes_to_rw;
while (length > 0) {
bytes_to_rw = (length < SD_BLK_SIZE) ? length : SD_BLK_SIZE;
res = SD_Read(&sdcard_dev, tmpbuf, sd_blknum, 0, bytes_to_rw);
if (res != SD_OK) {
printf("Failed to read SD card\n");
return -res;
}
if ((flash_pagenum % PAGES_PER_SECTOR) == 0) {
retval = alt_epcq_controller2_erase_block(epcq_dev, flash_pagenum*PAGESIZE);
if (retval != 0)
return retval;
}
for (i=0; i<bytes_to_rw; i++)
tmpbuf[i] = bitswap8(tmpbuf[i]);
retval = alt_epcq_controller2_write_block(epcq_dev, ((flash_pagenum/PAGES_PER_SECTOR)*SECTORSIZE), flash_pagenum*PAGESIZE, tmpbuf, bytes_to_rw);
if (retval != 0)
return retval;
++sd_blknum;
flash_pagenum += bytes_to_rw/PAGESIZE;
length -= bytes_to_rw;
}
return 0;
}
int copy_flash_to_sd(alt_u32 flash_pagenum, alt_u32 sd_blknum, alt_u32 length, alt_u8 *tmpbuf)
{
SDRESULTS res;
int retval, i;
alt_u32 bytes_to_rw;
while (length > 0) {
bytes_to_rw = (length < SD_BLK_SIZE) ? length : SD_BLK_SIZE;
retval = alt_epcq_controller2_read(epcq_dev, flash_pagenum*PAGESIZE, tmpbuf, bytes_to_rw);
for (i=0; i<bytes_to_rw; i++)
tmpbuf[i] = bitswap8(tmpbuf[i]);
if (retval != 0)
return retval;
if (bytes_to_rw < SD_BLK_SIZE)
memset(tmpbuf+bytes_to_rw, 0, SD_BLK_SIZE-bytes_to_rw);
res = SD_Write(&sdcard_dev, tmpbuf, sd_blknum);
if (res != SD_OK) {
printf("Failed to write to SD card\n");
return -res;
}
++sd_blknum;
flash_pagenum += bytes_to_rw/PAGESIZE;
length -= bytes_to_rw;
}
return 0;
}