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path: root/hw/mc146818rtc.c
AgeCommit message (Collapse)Author
2009-11-22BCD cleanupPaul Brook
Combine multiple BCD implementations. Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-10-27mc146818rtc: remove rtc_mm_init()Juan Quintela
It was used for Acer Pica 61 emulation, removed in 2008 Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27mc146818rtc: fix indentationJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27mc146818rtc: port rtc to vmstateJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27mc145818rtc: fix saving of rtc-td hack properly upgrading the version numberJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-12TARGET_I386 is always defined if TARGET_X86_64 is definedJuan Quintela
Patchworks-ID: 35378 Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-07New qdev_init_nofail()Markus Armbruster
Like qdev_init(), but terminate program via hw_error() instead of returning an error value. Use it instead of qdev_init() where terminating the program on failure is okay, either because it's during machine construction, or because we know that failure can't happen. Because relying in the latter is somewhat unclean, and the former is not always obvious, it would be nice to go back to qdev_init() in the not-so-obvious cases, only with proper error handling. I'm leaving that for another day, because it involves making sure that error values are properly checked by all callers. Patchworks-ID: 35168 Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05Enable host-clock-based RTCJan Kiszka
Switch RTC emulations to the new host_clock instead of vm_clock by default. This has the advantage that the emulated RTC will follow automatically the host time while it might be tuned via NTP. vm_clock can still be selected by passing '-rtc clock=vm' on the command line. Note that some RTC emulations (at least M48T59) already use the host time unconditionally while others (namely MC146818) do not. This patch introduces the required infrastructure for selecting the base clock but only converts MC146818 for now. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-01Revert "Get rid of _t suffix"Anthony Liguori
In the very least, a change like this requires discussion on the list. The naming convention is goofy and it causes a massive merge problem. Something like this _must_ be presented on the list first so people can provide input and cope with it. This reverts commit 99a0949b720a0936da2052cb9a46db04ffc6db29. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-01Get rid of _t suffixmalc
Some not so obvious bits, slirp and Xen were left alone for the time being. Signed-off-by: malc <av1474@comtv.ru>
2009-09-11Unexport ticks_per_sec variable. Create get_ticks_per_sec() functionJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-10qdev/isa: convert real time clockGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2009-09-09RTC polling mode brokenBernhard Kauer
The RTC emulation does not set the IRQ flags independent of the IRQ enable bits. The original MC146818A datasheet from 1984 notes: "flag bits in Register C [...] are set independent of the state of the corresponding enable bits in Register B" Similar sections can be found in newer documentation e.g. in rtc82885. Qemu and Bochs set the IRQ flags only if they are enabled, which breaks drivers polling on them. The following patch corrects this for the update-ended-flag in Qemu only. It does not fix the handling of the other flags. Signed-off-by: Bernhard Kauer <kauer@tudos.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-25Make CPURead/WriteFunc structure 'const'Blue Swirl
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-06-29Revert "Introduce reset notifier order"Jan Kiszka
This reverts commit 8217606e6edb49591b4a6fd5a0d1229cebe470a9 (and updates later added users of qemu_register_reset), we solved the problem it originally addressed less invasively. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-16Remove io_index argument from cpu_register_io_memory()Avi Kivity
The parameter is always zero except when registering the three internal io regions (ROM, unassigned, notdirty). Remove the parameter to reduce the API's power, thus facilitating future change. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-15Incorporate changes from v2 of Gleb's RTC reset patchAnthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-14Add rtc reset function.Gleb Natapov
On reset: Periodic Interrupt Enable (PIE) bit is cleared to zero Alarm Interrupt Enable (AIE) bit is cleared to zero Update ended Interrupt Flag (UF) bit is cleared to zero Interrupt Request status Flag (IRQF) bit is cleared to zero Periodic Interrupt Flag (PF) bit is cleared to zero Alarm Interrupt Flag (AF) bit is cleared to zero Square Wave output Enable (SQWE) zero Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-04-22Change RTC time drift IRQ re-injection (Gleb Natapov)aliguori
Currently IRQ are reinjected as soon as they are acknowledged to the RTC, but Windows sometimes do acknowledgement in a loop with global interrupt disabled waiting for interrupt to be cleared and it does not mask RTC vector in PIC/APIC while doing this. In such situation interrupt injection always fails and RTC interrupt is never cleared. Instead of reinjecting coalesced IRQs on acknowledgement the patch below reinjects them by accelerating RTC clock a bit. This way RTC interrupt is not constantly raced after coalesced interrupt. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7231 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-10Fix RTC breakage from r7031.pbrook
Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7062 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-07mc146818: add square wave output supportaurel32
This is necessary for es40 as the sqw output is directly connected to the core chipset. Signed-off-by: Tristan Gingold <gingold@adacore.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7031 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-05hw: remove error handling from qemu_malloc() callers (Avi Kivity)aliguori
Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6529 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-24Support epoch of 1980 in RTC emulation for MIPS Magnumaurel32
On the MIPS Magnum, the time that is held in the RTC's NVRAM should be relative to midnight on 1980-01-01. This patch adds an extra parameter to rtc_init(), allowing different epochs to be used. For the Magnum, 1980 is specified, and for all other machines, 2000 is specified. I've not modified the handling of the century byte, as with an epoch of 1980 and a year of 2009, one could argue that it should hold either 0, 1, 19 or 20. NT 3.50 on MIPS does not read the century byte. Signed-off-by: Stuart Brady <stuart.brady@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6429 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-15Add -rtc-td-hack option to fix time drift with RTC on Windows (Gleb Natapov)aliguori
After my last patch to fix interrupt coalescing was rejected on the basis that it is too intrusive we decided to make the fix much more localized and only fix the problem for RTC time source. Unfortunately it is impossible to fix the problem entirely inside RTC code like Andrzej proposed since Windows reads RTC register C more then once on each time interrupt so it is impossible to count reliably how many interrupt windows actually handled. Proposed solution is localized to I386 target and is disabled by default. To enable it "-rtc-td-hack" flag should be used. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6320 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-14Fix day of week in mc146818aurel32
According to mc146818 specification, Day of Week register (#6) is between 1 and 7, 1 representing Sunday. According C specification, tm_wday field in struct tm is between 0 and 6, 0 representing Sunday. Bit 2 of register B (#11) is named DM (data mode) and specifies if RTC stores values in BCD or in binary form. Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6310 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-18Remove trailing spaces introduced by commit 6081aurel32
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6085 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-17Add HPET emulation to qemu (Beth Kon)aliguori
This patch adds HPET emulation. It can be disabled with -disable-hpet. An hpet provides a more finely granular clocksource than otherwise available on PC. This means that latency-dependent applications (e.g. multimedia) will generally be smoother when using the HPET. Signed-off-by: Beth Kon <eak@us.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6081 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-01Change MMIO callbacks to use offsets, not absolute addresses.pbrook
Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5849 c046a42c-6fe2-441c-8c8c-71466251a162
2008-02-17Unify RTCs that use host time, fix M48t59 alarm.balrog
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3984 c046a42c-6fe2-441c-8c8c-71466251a162
2007-12-16qemu_put signedness fixes, by Andre Przywara.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3824 c046a42c-6fe2-441c-8c8c-71466251a162
2007-11-18Add statics and missing #includes for prototypes.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3683 c046a42c-6fe2-441c-8c8c-71466251a162
2007-11-17Break up vl.h.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3674 c046a42c-6fe2-441c-8c8c-71466251a162
2007-11-07added -startdate optionbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3540 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-17find -type f | xargs sed -i 's/[\t ]*$//g' # Yes, again. Note the star in ↵ths
the regex. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3177 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-16find -type f | xargs sed -i 's/[\t ]$//g' # on most filesths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3173 c046a42c-6fe2-441c-8c8c-71466251a162
2007-04-17Fix mmapped register alignment and endianness handling.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2694 c046a42c-6fe2-441c-8c8c-71466251a162
2007-04-16Memory-mapped interface for RTC, by Herve Poussineau.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2686 c046a42c-6fe2-441c-8c8c-71466251a162
2007-04-07Unify IRQ handling.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2635 c046a42c-6fe2-441c-8c8c-71466251a162
2006-12-07Move date/time init to the RTC implementation.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2229 c046a42c-6fe2-441c-8c8c-71466251a162
2004-06-03more accurate emulation (do not depend on localtime() or gmtime()bellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@872 c046a42c-6fe2-441c-8c8c-71466251a162
2004-04-03UIP update fixbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@699 c046a42c-6fe2-441c-8c8c-71466251a162
2004-03-31win32 port (initial patch by kazu)bellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@692 c046a42c-6fe2-441c-8c8c-71466251a162
2004-03-31more precise RTC emulation (periodic timers + time updates)bellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@688 c046a42c-6fe2-441c-8c8c-71466251a162
2004-03-14io port API changebellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@664 c046a42c-6fe2-441c-8c8c-71466251a162
2004-03-14separated more devices from emulatorbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@656 c046a42c-6fe2-441c-8c8c-71466251a162
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