mirror of https://github.com/marqs85/ossc.git
68 lines
1.8 KiB
C
68 lines
1.8 KiB
C
//
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// Copyright (C) 2015-2016 Markus Hiienkari <mhiienka@niksula.hut.fi>
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//
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// This file is part of Open Source Scan Converter project.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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#include <unistd.h>
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#include <string.h>
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#include "system.h"
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#include "flash.h"
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#include "utils.h"
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// save some code space
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#define SINGLE_FLASH_INSTANCE
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alt_flash_dev *epcq_dev;
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int init_flash()
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{
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#ifdef SINGLE_FLASH_INSTANCE
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extern alt_llist alt_flash_dev_list;
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epcq_dev = (alt_flash_dev*)alt_flash_dev_list.next;
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#else
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epcq_dev = alt_flash_open_dev(EPCQ_CONTROLLER_0_AVL_MEM_NAME);
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#endif
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if (epcq_dev == NULL)
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return -1;
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return 0;
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}
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int verify_flash(alt_u32 offset, alt_u32 length, alt_u32 golden_crc, alt_u8 *tmpbuf)
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{
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alt_u32 crcval=0, i, bytes_to_read;
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int retval;
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for (i=0; i<length; i=i+PAGESIZE) {
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bytes_to_read = ((length-i < PAGESIZE) ? (length-i) : PAGESIZE);
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//retval = read_flash(i, bytes_to_read, tmpbuf);
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retval = alt_epcq_controller_read(epcq_dev, offset+i, tmpbuf, bytes_to_read);
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if (retval != 0)
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return retval;
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crcval = crc32(tmpbuf, bytes_to_read, (i==0));
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}
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if (crcval != golden_crc)
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return -FLASH_VERIFY_ERROR;
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return 0;
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}
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