111 lines
2.8 KiB
C
111 lines
2.8 KiB
C
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/***************************************************************
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*
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* OpenBeacon.org - virtual FAT16 file system support
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*
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* Copyright 2010 Milosch Meriac <meriac@openbeacon.de>
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*
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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; version 2.
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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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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <openbeacon.h>
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#include "vfs.h"
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#include "storage.h"
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#if DISK_SIZE>0
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#include "spi.h"
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#define LOGFILE_STORAGE_SIZE (4*1024*1024)
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void
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storage_status (void)
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{
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static const uint8_t cmd_jedec_read_id = 0x9F;
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uint8_t rx[3];
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spi_txrx (SPI_CS_FLASH, &cmd_jedec_read_id, sizeof (cmd_jedec_read_id), rx,
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sizeof (rx));
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/* Show FLASH ID */
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debug_printf (" * FLASH: ID:%02X-%02X-%02X\n", rx[0], rx[1], rx[2]);
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}
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static void
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storage_logfile_read_raw (uint32_t offset, uint32_t length, const void *src,
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uint8_t * dst)
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{
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(void) src;
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uint8_t tx[5];
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tx[0]=0x03; /* 25MHz Read */
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tx[1]=(uint8_t)(offset>>16);
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tx[2]=(uint8_t)(offset>> 8);
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tx[3]=(uint8_t)(offset);
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tx[4]=0x00;
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spi_txrx (SPI_CS_FLASH, tx, sizeof(tx), dst, length);
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}
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void
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storage_init (void)
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{
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/* last entry in file chain is volume label */
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static const TDiskFile f_volume_label = {
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.name = DiskBPB.BS_VolLab,
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};
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static const TDiskFile f_logfile = {
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.length = LOGFILE_STORAGE_SIZE,
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.handler = storage_logfile_read_raw,
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.data = &f_logfile,
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.name = "LOGFILE BIN",
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.next = &f_volume_label,
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};
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/* read-me.htm file that redirects to project page */
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static const char readme[] =
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"<html><head><meta HTTP-EQUIV=\"REFRESH\" content=\"0; "
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"url=http://openbeacon.org/OpenBeacon_USB_2\"></head></html>";
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static const TDiskFile f_readme = {
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.length = sizeof (readme) - 1,
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.handler = NULL,
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.data = &readme,
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.name = "READ-ME HTM",
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.next = &f_logfile,
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};
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/* autorun.inf file that redirects to READ-ME.HTM */
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static const char autorun_inf[] =
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"[AutoRun]\n"
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"shellexecute=READ-ME.HTM\n";
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static const TDiskFile f_autorun = {
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.length = sizeof (autorun_inf) - 1,
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.handler = NULL,
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.data = &autorun_inf,
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.name = "AUTORUN INF",
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.next = &f_readme,
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};
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/* init virtual file system */
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vfs_init (&f_autorun);
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/* setup SPI chipselect pin */
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spi_init_pin (SPI_CS_FLASH);
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}
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#endif /* DISK_SIZE>0 */
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