FRET-qemu/hw/timer/digic-timer.c
Romain Malmain 7c3c7877d8 Update to QEMU 9.0.0 (#67)
* Update to QEMU v9.0.0

---------

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Ido Plat <ido.plat@ibm.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Signed-off-by: Gregory Price <gregory.price@memverge.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Lorenz Brun <lorenz@brun.one>
Signed-off-by: Yao Xingtao <yaoxt.fnst@fujitsu.com>
Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr>
Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Joonas Kankaala <joonas.a.kankaala@gmail.com>
Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Glenn Miles <milesg@linux.ibm.com>
Signed-off-by: Oleg Sviridov <oleg.sviridov@red-soft.ru>
Signed-off-by: Artem Chernyshev <artem.chernyshev@red-soft.ru>
Signed-off-by: Yajun Wu <yajunw@nvidia.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Pierre-Clément Tosi <ptosi@google.com>
Signed-off-by: Lei Wang <lei4.wang@intel.com>
Signed-off-by: Wei Wang <wei.w.wang@intel.com>
Signed-off-by: Martin Hundebøll <martin@geanix.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Signed-off-by: Wafer <wafer@jaguarmicro.com>
Signed-off-by: Yuxue Liu <yuxue.liu@jaguarmicro.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Nguyen Dinh Phi <phind.uet@gmail.com>
Signed-off-by: Zack Buhman <zack@buhman.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Yuquan Wang wangyuquan1236@phytium.com.cn
Signed-off-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
Signed-off-by: Cindy Lu <lulu@redhat.com>
Co-authored-by: Peter Maydell <peter.maydell@linaro.org>
Co-authored-by: Fabiano Rosas <farosas@suse.de>
Co-authored-by: Peter Xu <peterx@redhat.com>
Co-authored-by: Thomas Huth <thuth@redhat.com>
Co-authored-by: Cédric Le Goater <clg@redhat.com>
Co-authored-by: Zheyu Ma <zheyuma97@gmail.com>
Co-authored-by: Ido Plat <ido.plat@ibm.com>
Co-authored-by: Ilya Leoshkevich <iii@linux.ibm.com>
Co-authored-by: Markus Armbruster <armbru@redhat.com>
Co-authored-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Co-authored-by: Paolo Bonzini <pbonzini@redhat.com>
Co-authored-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Co-authored-by: David Hildenbrand <david@redhat.com>
Co-authored-by: Kevin Wolf <kwolf@redhat.com>
Co-authored-by: Stefan Reiter <s.reiter@proxmox.com>
Co-authored-by: Fiona Ebner <f.ebner@proxmox.com>
Co-authored-by: Gregory Price <gregory.price@memverge.com>
Co-authored-by: Lorenz Brun <lorenz@brun.one>
Co-authored-by: Yao Xingtao <yaoxt.fnst@fujitsu.com>
Co-authored-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Co-authored-by: Arnaud Minier <arnaud.minier@telecom-paris.fr>
Co-authored-by: BALATON Zoltan <balaton@eik.bme.hu>
Co-authored-by: Igor Mammedov <imammedo@redhat.com>
Co-authored-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Co-authored-by: Richard Henderson <richard.henderson@linaro.org>
Co-authored-by: Sven Schnelle <svens@stackframe.org>
Co-authored-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Co-authored-by: Helge Deller <deller@kernel.org>
Co-authored-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Co-authored-by: Benjamin Gray <bgray@linux.ibm.com>
Co-authored-by: Nicholas Piggin <npiggin@gmail.com>
Co-authored-by: Avihai Horon <avihaih@nvidia.com>
Co-authored-by: Michael Tokarev <mjt@tls.msk.ru>
Co-authored-by: Joonas Kankaala <joonas.a.kankaala@gmail.com>
Co-authored-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Co-authored-by: Stefan Weil <sw@weilnetz.de>
Co-authored-by: Dayu Liu <liu.dayu@zte.com.cn>
Co-authored-by: Zhao Liu <zhao1.liu@intel.com>
Co-authored-by: Glenn Miles <milesg@linux.vnet.ibm.com>
Co-authored-by: Artem Chernyshev <artem.chernyshev@red-soft.ru>
Co-authored-by: Yajun Wu <yajunw@nvidia.com>
Co-authored-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Co-authored-by: Pierre-Clément Tosi <ptosi@google.com>
Co-authored-by: Wei Wang <wei.w.wang@intel.com>
Co-authored-by: Martin Hundebøll <martin@geanix.com>
Co-authored-by: Michael S. Tsirkin <mst@redhat.com>
Co-authored-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Co-authored-by: Wafer <wafer@jaguarmicro.com>
Co-authored-by: lyx634449800 <yuxue.liu@jaguarmicro.com>
Co-authored-by: Gerd Hoffmann <kraxel@redhat.com>
Co-authored-by: Nguyen Dinh Phi <phind.uet@gmail.com>
Co-authored-by: Zack Buhman <zack@buhman.org>
Co-authored-by: Keith Packard <keithp@keithp.com>
Co-authored-by: Yuquan Wang <wangyuquan1236@phytium.com.cn>
Co-authored-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
Co-authored-by: Cindy Lu <lulu@redhat.com>
2024-05-01 16:10:20 +02:00

187 lines
4.9 KiB
C

/*
* QEMU model of the Canon DIGIC timer block.
*
* Copyright (C) 2013 Antony Pavlov <antonynpavlov@gmail.com>
*
* This model is based on reverse engineering efforts
* made by CHDK (http://chdk.wikia.com) and
* Magic Lantern (http://www.magiclantern.fm) projects
* contributors.
*
* See "Timer/Clock Module" docs here:
* http://magiclantern.wikia.com/wiki/Register_Map
*
* The QEMU model of the OSTimer in PKUnity SoC by Guan Xuetao
* is used as a template.
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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.
*
*/
#include "qemu/osdep.h"
#include "hw/sysbus.h"
#include "hw/ptimer.h"
#include "qemu/module.h"
#include "qemu/log.h"
#include "hw/timer/digic-timer.h"
#include "migration/vmstate.h"
static const VMStateDescription vmstate_digic_timer = {
.name = "digic.timer",
.version_id = 1,
.minimum_version_id = 1,
.fields = (const VMStateField[]) {
VMSTATE_PTIMER(ptimer, DigicTimerState),
VMSTATE_UINT32(control, DigicTimerState),
VMSTATE_UINT32(relvalue, DigicTimerState),
VMSTATE_END_OF_LIST()
}
};
static void digic_timer_reset(DeviceState *dev)
{
DigicTimerState *s = DIGIC_TIMER(dev);
ptimer_transaction_begin(s->ptimer);
ptimer_stop(s->ptimer);
ptimer_transaction_commit(s->ptimer);
s->control = 0;
s->relvalue = 0;
}
static uint64_t digic_timer_read(void *opaque, hwaddr offset, unsigned size)
{
DigicTimerState *s = opaque;
uint64_t ret = 0;
switch (offset) {
case DIGIC_TIMER_CONTROL:
ret = s->control;
break;
case DIGIC_TIMER_RELVALUE:
ret = s->relvalue;
break;
case DIGIC_TIMER_VALUE:
ret = ptimer_get_count(s->ptimer) & 0xffff;
break;
default:
qemu_log_mask(LOG_UNIMP,
"digic-timer: read access to unknown register 0x"
HWADDR_FMT_plx "\n", offset);
}
return ret;
}
static void digic_timer_write(void *opaque, hwaddr offset,
uint64_t value, unsigned size)
{
DigicTimerState *s = opaque;
switch (offset) {
case DIGIC_TIMER_CONTROL:
if (value & DIGIC_TIMER_CONTROL_RST) {
digic_timer_reset((DeviceState *)s);
break;
}
ptimer_transaction_begin(s->ptimer);
if (value & DIGIC_TIMER_CONTROL_EN) {
ptimer_run(s->ptimer, 0);
}
s->control = (uint32_t)value;
ptimer_transaction_commit(s->ptimer);
break;
case DIGIC_TIMER_RELVALUE:
s->relvalue = extract32(value, 0, 16);
ptimer_transaction_begin(s->ptimer);
ptimer_set_limit(s->ptimer, s->relvalue, 1);
ptimer_transaction_commit(s->ptimer);
break;
case DIGIC_TIMER_VALUE:
break;
default:
qemu_log_mask(LOG_UNIMP,
"digic-timer: read access to unknown register 0x"
HWADDR_FMT_plx "\n", offset);
}
}
static const MemoryRegionOps digic_timer_ops = {
.read = digic_timer_read,
.write = digic_timer_write,
.impl = {
.min_access_size = 4,
.max_access_size = 4,
},
.endianness = DEVICE_NATIVE_ENDIAN,
};
static void digic_timer_tick(void *opaque)
{
/* Nothing to do on timer rollover */
}
static void digic_timer_init(Object *obj)
{
DigicTimerState *s = DIGIC_TIMER(obj);
s->ptimer = ptimer_init(digic_timer_tick, NULL, PTIMER_POLICY_LEGACY);
/*
* FIXME: there is no documentation on Digic timer
* frequency setup so let it always run at 1 MHz
*/
ptimer_transaction_begin(s->ptimer);
ptimer_set_freq(s->ptimer, 1 * 1000 * 1000);
ptimer_transaction_commit(s->ptimer);
memory_region_init_io(&s->iomem, OBJECT(s), &digic_timer_ops, s,
TYPE_DIGIC_TIMER, 0x100);
sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->iomem);
}
static void digic_timer_finalize(Object *obj)
{
DigicTimerState *s = DIGIC_TIMER(obj);
ptimer_free(s->ptimer);
}
static void digic_timer_class_init(ObjectClass *klass, void *class_data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->reset = digic_timer_reset;
dc->vmsd = &vmstate_digic_timer;
}
static const TypeInfo digic_timer_info = {
.name = TYPE_DIGIC_TIMER,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(DigicTimerState),
.instance_init = digic_timer_init,
.instance_finalize = digic_timer_finalize,
.class_init = digic_timer_class_init,
};
static void digic_timer_register_type(void)
{
type_register_static(&digic_timer_info);
}
type_init(digic_timer_register_type)