#
# Grand Unified Makefile for Xen.
#
# Default target must appear before any include lines
.PHONY: all
all: dist
-include config/Toplevel.mk
SUBSYSTEMS?=xen kernels tools stubdom docs
TARGS_DIST=$(patsubst %, dist-%, $(SUBSYSTEMS))
TARGS_INSTALL=$(patsubst %, install-%, $(SUBSYSTEMS))
export XEN_ROOT=$(CURDIR)
include Config.mk
SUBARCH := $(subst x86_32,i386,$(XEN_TARGET_ARCH))
export XEN_TARGET_ARCH SUBARCH XEN_SYSTYPE
include buildconfigs/Rules.mk
# build and install everything into the standard system directories
.PHONY: install
install: $(TARGS_INSTALL)
.PHONY: build
build: kernels
$(MAKE) -C xen build
$(MAKE) -C tools build
$(MAKE) -C stubdom build
ifeq (x86_64,$(XEN_TARGET_ARCH))
XEN_TARGET_ARCH=x86_32 $(MAKE) -C stubdom pv-grub
endif
$(MAKE) -C docs build
# The test target is for unit tests that can run without an installation. Of
# course, many tests require a machine running Xen itself, and these are
# handled elsewhere.
.PHONY: test
test:
$(MAKE) -C tools/python test
# build and install everything into local dist directory
.PHONY: dist
dist: DESTDIR=$(DISTDIR)/install
dist: $(TARGS_DIST) dist-misc
dist-misc:
$(INSTALL_DIR) $(DISTDIR)/
$(INSTALL_DATA) ./COPYING $(DISTDIR)
$(INSTALL_DATA) ./README $(DISTDIR)
$(INSTALL_PROG) ./install.sh $(DISTDIR)
dist-%: DESTDIR=$(DISTDIR)/install
dist-%: install-%
@: # do nothing
# Legacy dist targets
.PHONY: xen tools stubdom kernels docs
xen: dist-xen
tools: dist-tools
kernels: dist-kernels
stubdom: dist-stubdom
docs: dist-docs
.PHONY: prep-kernels
prep-kernels:
for i in $(XKERNELS) ; do $(MAKE) $$i-prep || exit 1; done
.PHONY: install-xen
install-xen:
$(MAKE) -C xen install
ifeq ($(CONFIG_QEMU_TRAD),y)
QEMU_TRAD_DIR_TGT := tools/qemu-xen-traditional-dir
tools/qemu-xen-traditional-dir:
$(MAKE) -C tools qemu-xen-traditional-dir-find
.PHONY: tools/qemu-xen-traditional-dir-force-update
tools/qemu-xen-traditional-dir-force-update:
$(MAKE) -C tools qemu-xen-traditional-dir-force-update
endif
ifeq ($(CONFIG_QEMU_XEN),y)
QEMU_XEN_DIR_TGT := tools/qemu-xen-dir
tools/qemu-xen-dir:
$(MAKE) -C tools qemu-xen-dir-find
.PHONY: tools/qemu-xen-dir-force-update
tools/qemu-xen-dir-force-update:
$(MAKE) -C tools qemu-xen-dir-force-update
endif
.PHONY: install-tools
install-tools: $(QEMU_TRAD_DIR_TARGET) $(QEMU_XEN_DIR_TARGET)
$(MAKE) -C tools install
.PHONY: install-kernels
install-kernels:
for i in $(XKERNELS) ; do $(MAKE) $$i-install || exit 1; done
.PHONY: install-stubdom
install-stubdom: $(QEMU_TRAD_DIR_TARGET) install-tools
$(MAKE) -C stubdom install
ifeq (x86_64,$(XEN_TARGET_ARCH))
XEN_TARGET_ARCH=x86_32 $(MAKE) -C stubdom install-grub
endif
.PHONY: tools/firmware/seabios-dir-force-update
tools/firmware/seabios-dir-force-update:
$(MAKE) -C tools/firmware seabios-dir-force-update
.PHONY: install-docs
install-docs:
$(MAKE) -C docs install
.PHONY: dev-docs
dev-docs:
$(MAKE) -C docs dev-docs
# Build all the various kernels and modules
.PHONY: kbuild
kbuild: kernels
# Delete the kernel build trees entirely
.PHONY: kdelete
kdelete:
for i in $(XKERNELS) ; do $(MAKE) $$i-delete ; done
# Clean the kernel build trees
.PHONY: kclean
kclean:
for i in $(XKERNELS) ; do $(MAKE) $$i-clean ; done
# build xen, the tools, and a domain 0 plus unprivileged linux-xen images,
# and place them in the install directory. 'make install' should then
# copy them to the normal system directories
.PHONY: world
world:
$(MAKE) clean
$(MAKE) kdelete
$(MAKE) dist
# Package a build in a debball file, that is inside a .deb format
# container to allow for easy and clean removal. This is not intended
# to be a full featured policy compliant .deb package.
.PHONY: debball
debball: dist
fakeroot sh ./tools/misc/mkdeb $(XEN_ROOT) $$($(MAKE) -C xen xenversion | grep -v :)
# clean doesn't do a kclean
.PHONY: clean
clean::
$(MAKE) -C xen clean
$(MAKE) -C tools clean
$(MAKE) -C stubdom crossclean
ifeq (x86_64,$(XEN_TARGET_ARCH))
XEN_TARGET_ARCH=x86_32 $(MAKE) -C stubdom crossclean
endif
$(MAKE) -C docs clean
# clean, but blow away kernel build tree plus tarballs
.PHONY: distclean
distclean:
rm -f config/Toplevel.mk
$(MAKE) -C xen distclean
$(MAKE) -C tools distclean
$(MAKE) -C stubdom distclean
ifeq (x86_64,$(XEN_TARGET_ARCH))
XEN_TARGET_ARCH=x86_32 $(MAKE) -C stubdom distclean
endif
$(MAKE) -C docs distclean
rm -rf dist patches/tmp
for i in $(ALLKERNELS) ; do $(MAKE) $$i-delete ; done
rm -rf patches/*/.makedep
rm -rf config.log config.status config.cache autom4te.cache
# Linux name for GNU distclean
.PHONY: mrproper
mrproper: distclean
# Prepare for source tarball
.PHONY: src-tarball
src-tarball: distclean
$(MAKE) -C xen .banner
rm -rf xen/tools/figlet .[a-z]*
$(MAKE) -C xen distclean
.PHONY: help
help:
@echo 'Installation targets:'
@echo ' install - build and install everything'
@echo ' install-xen - build and install the Xen hypervisor'
@echo ' install-tools - build and install the control tools'
@echo ' install-kernels - build and install guest kernels'
@echo ' install-stubdom - build and install the stubdomain images'
@echo ' install-docs - build and install user documentation'
@echo ''
@echo 'Building targets:'
@echo ' dist - build and install everything into local dist directory'
@echo ' world - clean everything, delete guest kernel build'
@echo ' trees then make dist'
@echo ' xen - build and install Xen hypervisor'
@echo ' tools - build and install tools'
@echo ' stubdom - build and install the stubdomain images'
@echo ' kernels - build and install guest kernels'
@echo ' kbuild - synonym for make kernels'
@echo ' docs - build and install user documentation'
@echo ' dev-docs - build developer-only documentation'
@echo ''
@echo 'Cleaning targets:'
@echo ' clean - clean the Xen, tools and docs (but not guest kernel trees)'
@echo ' distclean - clean plus delete kernel build trees and'
@echo ' local downloaded files'
@echo ' kdelete - delete guest kernel build trees'
@echo ' kclean - clean guest kernel build trees'
@echo ''
@echo 'Miscellaneous targets:'
@echo ' prep-kernels - prepares kernel directories, does not build'
@echo ' uninstall - attempt to remove installed Xen tools'
@echo ' (use with extreme care!)'
@echo
@echo 'Trusted Boot (tboot) targets:'
@echo ' build-tboot - download and build the tboot module'
@echo ' install-tboot - download, build, and install the tboot module'
@echo ' clean-tboot - clean the tboot module if it exists'
@echo
@echo 'Environment:'
@echo ' [ this documentation is sadly not complete ]'
# Use this target with extreme care!
.PHONY: uninstall
uninstall: D=$(DESTDIR)
uninstall:
[ -d $(D)$(XEN_CONFIG_DIR) ] && mv -f $(D)$(XEN_CONFIG_DIR) $(D)$(XEN_CONFIG_DIR).old-`date +%s` || true
$(MAKE) -C xen uninstall
rm -rf $(D)$(CONFIG_DIR)/init.d/xendomains $(D)$(CONFIG_DIR)/init.d/xend
rm -rf $(D)$(CONFIG_DIR)/init.d/xencommons $(D)$(CONFIG_DIR)/init.d/xen-watchdog
rm -f $(D)$(CONFIG_DIR)/udev/rules.d/xen-backend.rules
rm -f $(D)$(CONFIG_DIR)/udev/rules.d/xend.rules
rm -f $(D)$(SYSCONFIG_DIR)/xendomains
rm -f $(D)$(SYSCONFIG_DIR)/xencommons
rm -rf $(D)/var/run/xen* $(D)/var/lib/xen*
make -C tools uninstall
rm -rf $(D)/boot/tboot*
# Legacy targets for compatibility
.PHONY: linux26
linux26:
$(MAKE) 'KERNELS=linux-2.6*' kernels
.PHONY: xenversion
xenversion:
@$(MAKE) --no-print-directory -C xen xenversion
#
# tboot targets
#
TBOOT_TARFILE = tboot-20090330.tar.gz
#TBOOT_BASE_URL = http://downloads.sourceforge.net/tboot
TBOOT_BASE_URL = $(XEN_EXTFILES_URL)
.PHONY: build-tboot
build-tboot: download_tboot
$(MAKE) -C tboot build
.PHONY: install-tboot
install-tboot: download_tboot
$(MAKE) -C tboot install
.PHONY: dist-tboot
dist-tboot: download_tboot
$(MAKE) DESTDIR=$(DISTDIR)/install -C tboot dist
.PHONY: clean-tboot
clean-tboot:
[ ! -d tboot ] || $(MAKE) -C tboot clean
.PHONY: distclean-tboot
distclean-tboot:
[ ! -d tboot ] || $(MAKE) -C tboot distclean
.PHONY: download_tboot
download_tboot: tboot/Makefile
tboot/Makefile: tboot/$(TBOOT_TARFILE)
[ -e tboot/Makefile ] || tar -xzf tboot/$(TBOOT_TARFILE) -C tboot/ --strip-components 1
tboot/$(TBOOT_TARFILE):
mkdir -p tboot
wget -O tboot/$(TBOOT_TARFILE) $(TBOOT_BASE_URL)/$(TBOOT_TARFILE)
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/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT 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.
ChibiOS/RT 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/>.
*/
/**
* @file can.c
* @brief CAN Driver code.
*
* @addtogroup CAN
* @{
*/
#include "ch.h"
#include "hal.h"
#if HAL_USE_CAN || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/**
* @brief CAN Driver initialization.
* @note This function is implicitly invoked by @p halInit(), there is
* no need to explicitly initialize the driver.
*
* @init
*/
void canInit(void) {
can_lld_init();
}
/**
* @brief Initializes the standard part of a @p CANDriver structure.
*
* @param[out] canp pointer to the @p CANDriver object
*
* @init
*/
void canObjectInit(CANDriver *canp) {
canp->state = CAN_STOP;
canp->config = NULL;
chSemInit(&canp->txsem, 0);
chSemInit(&canp->rxsem, 0);
chEvtInit(&canp->rxfull_event);
chEvtInit(&canp->txempty_event);
chEvtInit(&canp->error_event);
#if CAN_USE_SLEEP_MODE
chEvtInit(&canp->sleep_event);
chEvtInit(&canp->wakeup_event);
#endif /* CAN_USE_SLEEP_MODE */
}
/**
* @brief Configures and activates the CAN peripheral.
* @note Activating the CAN bus can be a slow operation this this function
* is not atomic, it waits internally for the initialization to
* complete.
*
* @param[in] canp pointer to the @p CANDriver object
* @param[in] config pointer to the @p CANConfig object. Depending on
* the implementation the value can be @p NULL.
*
* @api
*/
void canStart(CANDriver *canp, const CANConfig *config) {
chDbgCheck(canp != NULL, "canStart");
chSysLock();
chDbgAssert((canp->state == CAN_STOP) ||
(canp->state == CAN_STARTING) ||
(canp->state == CAN_READY),
"canStart(), #1", "invalid state");
while (canp->state == CAN_STARTING)
chThdSleepS(1);
if (canp->state == CAN_STOP) {
canp->config = config;
can_lld_start(canp);
canp->state = CAN_READY;
}
chSysUnlock();
}
/**
* @brief Deactivates the CAN peripheral.
*
* @param[in] canp pointer to the @p CANDriver object
*
* @api
*/
void canStop(CANDriver *canp) {
chDbgCheck(canp != NULL, "canStop");
chSysLock();
chDbgAssert((canp->state == CAN_STOP) || (canp->state == CAN_READY),
"canStop(), #1", "invalid state");
can_lld_stop(canp);
chSemResetI(&canp->rxsem, 0);
chSemResetI(&canp->txsem, 0);
chSchRescheduleS();
canp->state = CAN_STOP;
chSysUnlock();
}
/**
* @brief Can frame transmission.
* @details The specified frame is queued for transmission, if the hardware
* queue is full then the invoking thread is queued.
* @note Trying to transmit while in sleep mode simply enqueues the thread.
*
* @param[in] canp pointer to the @p CANDriver object
* @param[in] ctfp pointer to the CAN frame to be transmitted
* @param[in] timeout the number of ticks before the operation timeouts,
* the following special values are allowed:
* - @a TIME_IMMEDIATE immediate timeout.
* - @a TIME_INFINITE no timeout.
* .
* @return The operation result.
* @retval RDY_OK the frame has been queued for transmission.
* @retval RDY_TIMEOUT The operation has timed out.
* @retval RDY_RESET The driver has been stopped while waiting.
*
* @api
*/
msg_t canTransmit(CANDriver *canp, const CANTxFrame *ctfp, systime_t timeout) {
chDbgCheck((canp != NULL) && (ctfp != NULL), "canTransmit");
chSysLock();
chDbgAssert((canp->state == CAN_READY) || (canp->state == CAN_SLEEP),
"canTransmit(), #1", "invalid state");
while ((canp->state == CAN_SLEEP) || !can_lld_can_transmit(canp)) {
msg_t msg = chSemWaitTimeoutS(&canp->txsem, timeout);
if (msg != RDY_OK) {
chSysUnlock();
return msg;
}
}
can_lld_transmit(canp, ctfp);
chSysUnlock();
return RDY_OK;
}
/**
* @brief Can frame receive.
* @details The function waits until a frame is received.
* @note Trying to receive while in sleep mode simply enqueues the thread.
*
* @param[in] canp pointer to the @p CANDriver object
* @param[out] crfp pointer to the buffer where the CAN frame is copied
* @param[in] timeout the number of ticks before the operation timeouts,
* the following special values are allowed:
* - @a TIME_IMMEDIATE immediate timeout (useful in an
* event driven scenario where a thread never blocks
* for I/O).
* - @a TIME_INFINITE no timeout.
* .
* @return The operation result.
* @retval RDY_OK a frame has been received and placed in the buffer.
* @retval RDY_TIMEOUT The operation has timed out.
* @retval RDY_RESET The driver has been stopped while waiting.
*
* @api
*/
msg_t canReceive(CANDriver *canp, CANRxFrame *crfp, systime_t timeout) {
chDbgCheck((canp != NULL) && (crfp != NULL), "canReceive");
chSysLock();
chDbgAssert((canp->state == CAN_READY) || (canp->state == CAN_SLEEP),
"canReceive(), #1", "invalid state");
while ((canp->state == CAN_SLEEP) || !can_lld_can_receive(canp)) {
msg_t msg = chSemWaitTimeoutS(&canp->rxsem, timeout);
if (msg != RDY_OK) {
chSysUnlock();
return msg;
}
}
can_lld_receive(canp, crfp);
chSysUnlock();
return RDY_OK;
}
#if CAN_USE_SLEEP_MODE || defined(__DOXYGEN__)
/**
* @brief Enters the sleep mode.
* @details This function puts the CAN driver in sleep mode and broadcasts
* the @p sleep_event event source.
* @pre In order to use this function the option @p CAN_USE_SLEEP_MODE must
* be enabled and the @p CAN_SUPPORTS_SLEEP mode must be supported
* by the low level driver.
*
* @param[in] canp pointer to the @p CANDriver object
*
* @api
*/
void canSleep(CANDriver *canp) {
chDbgCheck(canp != NULL, "canSleep");
chSysLock();
chDbgAssert((canp->state == CAN_READY) || (canp->state == CAN_SLEEP),
"canSleep(), #1", "invalid state");
if (canp->state == CAN_READY) {
can_lld_sleep(canp);
canp->state = CAN_SLEEP;
chEvtBroadcastI(&canp->sleep_event);
chSchRescheduleS();
}
chSysUnlock();
}
/**
* @brief Enforces leaving the sleep mode.
* @note The sleep mode is supposed to be usually exited automatically by
* an hardware event.
*
* @param[in] canp pointer to the @p CANDriver object
*/
void canWakeup(CANDriver *canp) {
chDbgCheck(canp != NULL, "canWakeup");
chSysLock();
chDbgAssert((canp->state == CAN_READY) || (canp->state == CAN_SLEEP),
"canWakeup(), #1", "invalid state");
if (canp->state == CAN_SLEEP) {
can_lld_wakeup(canp);
canp->state = CAN_READY;
chEvtBroadcastI(&canp->wakeup_event);
chSchRescheduleS();
}
chSysUnlock();
}
#endif /* CAN_USE_SLEEP_MODE */
#endif /* HAL_USE_CAN */
/** @} */
|