112 lines
2.9 KiB
C
Executable File
112 lines
2.9 KiB
C
Executable File
// Copyright (C) 2014 Michael McMaster <michael@codesrc.com>
|
|
//
|
|
// This file is part of SCSI2SD.
|
|
//
|
|
// SCSI2SD 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.
|
|
//
|
|
// SCSI2SD 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 SCSI2SD. If not, see <http://www.gnu.org/licenses/>.
|
|
#include "device.h"
|
|
#include "scsi.h"
|
|
#include "scsiPhy.h"
|
|
#include "config.h"
|
|
#include "debug.h"
|
|
#include "disk.h"
|
|
#include "led.h"
|
|
#include "time.h"
|
|
#include "trace.h"
|
|
|
|
const char* Notice = "Copyright (C) 2015-2021 Michael McMaster <michael@codesrc.com>";
|
|
|
|
int main()
|
|
{
|
|
timeInit();
|
|
ledInit();
|
|
s2s_deviceEarlyInit();
|
|
traceInit();
|
|
|
|
// Enable global interrupts.
|
|
// Needed for RST and ATN interrupt handlers.
|
|
CyGlobalIntEnable;
|
|
|
|
// Set interrupt handlers.
|
|
scsiPhyInit();
|
|
|
|
configInit(&scsiDev.boardCfg);
|
|
debugInit();
|
|
|
|
scsiPhyConfig();
|
|
|
|
scsiInit();
|
|
scsiDiskInit();
|
|
|
|
// Optional bootup delay
|
|
int delaySeconds = 0;
|
|
while (delaySeconds < scsiDev.boardCfg.startupDelay) {
|
|
// Keep the USB connection working, otherwise it's very hard to revert
|
|
// silly extra-long startup delay settings.
|
|
int i;
|
|
for (i = 0; i < 200; i++) {
|
|
CyDelay(5);
|
|
scsiDev.watchdogTick++;
|
|
configPoll();
|
|
}
|
|
++delaySeconds;
|
|
}
|
|
|
|
s2s_deviceInit();
|
|
|
|
while (1)
|
|
{
|
|
scsiDev.watchdogTick++;
|
|
|
|
scsiPoll();
|
|
scsiDiskPoll();
|
|
configPoll();
|
|
sdPoll();
|
|
|
|
if (unlikely(scsiDev.phase == BUS_FREE))
|
|
{
|
|
if (s2s_pollMediaChange())
|
|
{
|
|
scsiPhyConfig();
|
|
scsiInit();
|
|
}
|
|
|
|
// If USB is connected we could be busy transferring data
|
|
// Note: The same flag is used for the config USB interface and
|
|
// therefore SPI flash writes
|
|
else if (!isDebugEnabled())
|
|
{
|
|
// Wait for our 1ms timer to save some power.
|
|
// There's an interrupt on the SEL signal to ensure we respond
|
|
// quickly to any SCSI commands. The selection abort time is
|
|
// only 250us, and new SCSI-3 controllers time-out very
|
|
// not long after that, so we need to ensure we wake up quickly.
|
|
uint8_t interruptState = CyEnterCriticalSection();
|
|
if (!SCSI_ReadFilt(SCSI_Filt_SEL))
|
|
{
|
|
__WFI(); // Will wake on interrupt, regardless of mask
|
|
}
|
|
CyExitCriticalSection(interruptState);
|
|
}
|
|
}
|
|
else if ((scsiDev.phase >= 0) &&
|
|
scsiDev.target &&
|
|
(scsiDev.target->device->mediaState & MEDIA_PRESENT))
|
|
{
|
|
scsiDev.target->device->pollMediaBusy(scsiDev.target->device);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|