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ossc/software/sys_controller/memory/sdcard.c

65 lines
1.8 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 "sdcard.h"
#include "flash.h"
#include "lcd.h"
extern char menu_row1[LCD_ROW_LEN+1], menu_row2[LCD_ROW_LEN+1];
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)
return res;
return SD_Read(&sdcard_dev, databuf, 0, 0, 512);
}
int copy_sd_to_flash(alt_u32 sd_blknum, alt_u32 flash_pagenum, alt_u32 length, alt_u8 *tmpbuf)
{
int retval;
alt_u32 bytes_to_rw;
while (length > 0) {
bytes_to_rw = (length < SD_BLK_SIZE) ? length : SD_BLK_SIZE;
retval = SD_Read(&sdcard_dev, tmpbuf, sd_blknum, 0, bytes_to_rw);
if (retval != 0) {
printf("Failed to read SD card\n");
return -retval;
}
retval = write_flash(tmpbuf, bytes_to_rw, flash_pagenum);
if (retval != 0)
return retval;
++sd_blknum;
flash_pagenum += bytes_to_rw/PAGESIZE;
length -= bytes_to_rw;
}
return 0;
}