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Adjust bus settle delay to match SCSI standard (#544)

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* Move the GCC v10 compiler flags into makefile instead of easyinstall.sh

* #504 - Update the bus settle time to match the SCSI standard

Co-authored-by: RaSCSI User <user@rascsi.com>
This commit is contained in:
akuker 2021-12-20 12:50:14 -06:00 committed by GitHub
parent 200bc7251f
commit 958fb95908
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4 changed files with 15 additions and 13 deletions
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9
easyinstall.sh
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@ -83,15 +83,8 @@ function installPackages() {
function compileRaScsi() {
cd "$BASE/src/raspberrypi" || exit 1
# Compiler flags needed for gcc v10 and up
if [[ `gcc --version | awk '/gcc/' | awk -F ' ' '{print $3}' | awk -F '.' '{print $1}'` -ge 10 ]]; then
echo -n "gcc 10 or later detected. Will compile with the following flags: "
COMPILER_FLAGS="-DFMT_HEADER_ONLY"
echo $COMPILER_FLAGS
fi
echo "Compiling with ${CORES:-1} simultaneous cores..."
( make clean && EXTRA_FLAGS="$COMPILER_FLAGS" make -j "${CORES:-1}" all CONNECT_TYPE="${CONNECT_TYPE:-FULLSPEC}" ) </dev/null
( make clean && make -j "${CORES:-1}" all CONNECT_TYPE="${CONNECT_TYPE:-FULLSPEC}" ) </dev/null
}
# install the RaSCSI binaries and modify the service configuration

10
src/raspberrypi/Makefile
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@ -31,6 +31,16 @@ CXXFLAGS += -std=c++17 -Wno-psabi -iquote . -D_FILE_OFFSET_BITS=64 -MD -MP
CFLAGS += $(EXTRA_FLAGS)
CXXFLAGS += $(EXTRA_FLAGS)
# If we're using GCC version 10 or later, we need to add the FMT_HEADER_ONLY definition
GCCVERSION10 := $(shell expr `gcc -dumpversion` \>= 10)
ifeq "$(GCCVERSION10)" "1"
CFLAGS += -DFMT_HEADER_ONLY
CXXFLAGS += -DFMT_HEADER_ONLY
endif
## CONNECT_TYPE=FULLSPEC : Specify the type of RaSCSI board type
## that you are using. The typical options are
## STANDARD or FULLSPEC. The default is FULLSPEC

8
src/raspberrypi/gpiobus.cpp
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@ -840,7 +840,7 @@ int GPIOBUS::CommandHandShake(BYTE *buf)
BOOL ret = WaitSignal(PIN_ACK, TRUE);
// Wait until the signal line stabilizes
SysTimer::SleepNsec(GPIO_DATA_SETTLING);
SysTimer::SleepNsec(SCSI_DELAY_BUS_SETTLE_DELAY_NS);
// Get data
*buf = GetDAT();
@ -874,7 +874,7 @@ int GPIOBUS::CommandHandShake(BYTE *buf)
ret = WaitSignal(PIN_ACK, TRUE);
// Wait until the signal line stabilizes
SysTimer::SleepNsec(GPIO_DATA_SETTLING);
SysTimer::SleepNsec(SCSI_DELAY_BUS_SETTLE_DELAY_NS);
// Get data
*buf = GetDAT();
@ -930,7 +930,7 @@ int GPIOBUS::ReceiveHandShake(BYTE *buf, int count)
ret = WaitSignal(PIN_ACK, TRUE);
// Wait until the signal line stabilizes
SysTimer::SleepNsec(GPIO_DATA_SETTLING);
SysTimer::SleepNsec(SCSI_DELAY_BUS_SETTLE_DELAY_NS);
// Get data
*buf = GetDAT();
@ -973,7 +973,7 @@ int GPIOBUS::ReceiveHandShake(BYTE *buf, int count)
}
// Wait until the signal line stabilizes
SysTimer::SleepNsec(GPIO_DATA_SETTLING);
SysTimer::SleepNsec(SCSI_DELAY_BUS_SETTLE_DELAY_NS);
// Get data
*buf = GetDAT();

1
src/raspberrypi/gpiobus.h
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@ -433,7 +433,6 @@
// Constant declarations (bus control timing)
//
//---------------------------------------------------------------------------
#define GPIO_DATA_SETTLING 100 // Data bus stabilization time (ns)
// SCSI Bus timings taken from:
// https://www.staff.uni-mainz.de/tacke/scsi/SCSI2-05.html
#define SCSI_DELAY_ARBITRATION_DELAY_NS 2400