OpenE2K/qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

hw/block/fdc: Extract SysBus floppy controllers to fdc-sysbus.c

Browse Source 
Some machines use floppy controllers via the SysBus interface,
and don't need to pull in all the SysBus code.
Extract the SysBus specific code to a new unit: fdc-sysbus.c,
and add a new Kconfig symbol: "FDC_SYSBUS".

Reviewed-by: John Snow <jsnow@redhat.com>
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20210614193220.2007159-6-philmd@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé 2021-06-14 21:32:19 +02:00 committed by John Snow
parent 72ea60e411
commit 1430759ec3
8 changed files with 259 additions and 222 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
MAINTAINERS
View File

@ -1673,6 +1673,7 @@ S: Supported
F: hw/block/fdc.c
F: hw/block/fdc-internal.h
F: hw/block/fdc-isa.c
F: hw/block/fdc-sysbus.c
F: include/hw/block/fdc.h
F: tests/qtest/fdc-test.c
T: git https://gitlab.com/jsnow/qemu.git ide

4
hw/block/Kconfig
View File

@ -6,6 +6,10 @@ config FDC_ISA
depends on ISA_BUS
select FDC
config FDC_SYSBUS
bool
select FDC
config SSI_M25P80
bool

249
hw/block/fdc-sysbus.c Normal file
View File

@ -0,0 +1,249 @@
/*
* QEMU Floppy disk emulator (Intel 82078)
*
* Copyright (c) 2003, 2007 Jocelyn Mayer
* Copyright (c) 2008 Hervé Poussineau
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "qom/object.h"
#include "hw/sysbus.h"
#include "hw/block/fdc.h"
#include "migration/vmstate.h"
#include "fdc-internal.h"
#include "trace.h"
#define TYPE_SYSBUS_FDC "base-sysbus-fdc"
typedef struct FDCtrlSysBusClass FDCtrlSysBusClass;
typedef struct FDCtrlSysBus FDCtrlSysBus;
DECLARE_OBJ_CHECKERS(FDCtrlSysBus, FDCtrlSysBusClass,
SYSBUS_FDC, TYPE_SYSBUS_FDC)
struct FDCtrlSysBusClass {
/*< private >*/
SysBusDeviceClass parent_class;
/*< public >*/
bool use_strict_io;
};
struct FDCtrlSysBus {
/*< private >*/
SysBusDevice parent_obj;
/*< public >*/
struct FDCtrl state;
};
static uint64_t fdctrl_read_mem(void *opaque, hwaddr reg, unsigned ize)
{
return fdctrl_read(opaque, (uint32_t)reg);
}
static void fdctrl_write_mem(void *opaque, hwaddr reg,
uint64_t value, unsigned size)
{
fdctrl_write(opaque, (uint32_t)reg, value);
}
static const MemoryRegionOps fdctrl_mem_ops = {
.read = fdctrl_read_mem,
.write = fdctrl_write_mem,
.endianness = DEVICE_NATIVE_ENDIAN,
};
static const MemoryRegionOps fdctrl_mem_strict_ops = {
.read = fdctrl_read_mem,
.write = fdctrl_write_mem,
.endianness = DEVICE_NATIVE_ENDIAN,
.valid = {
.min_access_size = 1,
.max_access_size = 1,
},
};
static void fdctrl_external_reset_sysbus(DeviceState *d)
{
FDCtrlSysBus *sys = SYSBUS_FDC(d);
FDCtrl *s = &sys->state;
fdctrl_reset(s, 0);
}
static void fdctrl_handle_tc(void *opaque, int irq, int level)
{
trace_fdctrl_tc_pulse(level);
}
void fdctrl_init_sysbus(qemu_irq irq, int dma_chann,
hwaddr mmio_base, DriveInfo **fds)
{
FDCtrl *fdctrl;
DeviceState *dev;
SysBusDevice *sbd;
FDCtrlSysBus *sys;
dev = qdev_new("sysbus-fdc");
sys = SYSBUS_FDC(dev);
fdctrl = &sys->state;
fdctrl->dma_chann = dma_chann; /* FIXME */
sbd = SYS_BUS_DEVICE(dev);
sysbus_realize_and_unref(sbd, &error_fatal);
sysbus_connect_irq(sbd, 0, irq);
sysbus_mmio_map(sbd, 0, mmio_base);
fdctrl_init_drives(&sys->state.bus, fds);
}
void sun4m_fdctrl_init(qemu_irq irq, hwaddr io_base,
DriveInfo **fds, qemu_irq *fdc_tc)
{
DeviceState *dev;
FDCtrlSysBus *sys;
dev = qdev_new("sun-fdtwo");
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
sys = SYSBUS_FDC(dev);
sysbus_connect_irq(SYS_BUS_DEVICE(sys), 0, irq);
sysbus_mmio_map(SYS_BUS_DEVICE(sys), 0, io_base);
*fdc_tc = qdev_get_gpio_in(dev, 0);
fdctrl_init_drives(&sys->state.bus, fds);
}
static void sysbus_fdc_common_instance_init(Object *obj)
{
DeviceState *dev = DEVICE(obj);
FDCtrlSysBusClass *sbdc = SYSBUS_FDC_GET_CLASS(obj);
SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
FDCtrlSysBus *sys = SYSBUS_FDC(obj);
FDCtrl *fdctrl = &sys->state;
qdev_set_legacy_instance_id(dev, 0 /* io */, 2); /* FIXME */
memory_region_init_io(&fdctrl->iomem, obj,
sbdc->use_strict_io ? &fdctrl_mem_strict_ops
: &fdctrl_mem_ops,
fdctrl, "fdc", 0x08);
sysbus_init_mmio(sbd, &fdctrl->iomem);
sysbus_init_irq(sbd, &fdctrl->irq);
qdev_init_gpio_in(dev, fdctrl_handle_tc, 1);
}
static void sysbus_fdc_realize(DeviceState *dev, Error **errp)
{
FDCtrlSysBus *sys = SYSBUS_FDC(dev);
FDCtrl *fdctrl = &sys->state;
fdctrl_realize_common(dev, fdctrl, errp);
}
static const VMStateDescription vmstate_sysbus_fdc = {
.name = "fdc",
.version_id = 2,
.minimum_version_id = 2,
.fields = (VMStateField[]) {
VMSTATE_STRUCT(state, FDCtrlSysBus, 0, vmstate_fdc, FDCtrl),
VMSTATE_END_OF_LIST()
}
};
static void sysbus_fdc_common_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->realize = sysbus_fdc_realize;
dc->reset = fdctrl_external_reset_sysbus;
dc->vmsd = &vmstate_sysbus_fdc;
set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
}
static const TypeInfo sysbus_fdc_common_typeinfo = {
.name = TYPE_SYSBUS_FDC,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(FDCtrlSysBus),
.instance_init = sysbus_fdc_common_instance_init,
.abstract = true,
.class_init = sysbus_fdc_common_class_init,
.class_size = sizeof(FDCtrlSysBusClass),
};
static Property sysbus_fdc_properties[] = {
DEFINE_PROP_SIGNED("fdtypeA", FDCtrlSysBus, state.qdev_for_drives[0].type,
FLOPPY_DRIVE_TYPE_AUTO, qdev_prop_fdc_drive_type,
FloppyDriveType),
DEFINE_PROP_SIGNED("fdtypeB", FDCtrlSysBus, state.qdev_for_drives[1].type,
FLOPPY_DRIVE_TYPE_AUTO, qdev_prop_fdc_drive_type,
FloppyDriveType),
DEFINE_PROP_SIGNED("fallback", FDCtrlSysBus, state.fallback,
FLOPPY_DRIVE_TYPE_144, qdev_prop_fdc_drive_type,
FloppyDriveType),
DEFINE_PROP_END_OF_LIST(),
};
static void sysbus_fdc_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
device_class_set_props(dc, sysbus_fdc_properties);
}
static const TypeInfo sysbus_fdc_typeinfo = {
.name = "sysbus-fdc",
.parent = TYPE_SYSBUS_FDC,
.class_init = sysbus_fdc_class_init,
};
static Property sun4m_fdc_properties[] = {
DEFINE_PROP_SIGNED("fdtype", FDCtrlSysBus, state.qdev_for_drives[0].type,
FLOPPY_DRIVE_TYPE_AUTO, qdev_prop_fdc_drive_type,
FloppyDriveType),
DEFINE_PROP_SIGNED("fallback", FDCtrlSysBus, state.fallback,
FLOPPY_DRIVE_TYPE_144, qdev_prop_fdc_drive_type,
FloppyDriveType),
DEFINE_PROP_END_OF_LIST(),
};
static void sun4m_fdc_class_init(ObjectClass *klass, void *data)
{
FDCtrlSysBusClass *sbdc = SYSBUS_FDC_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
sbdc->use_strict_io = true;
device_class_set_props(dc, sun4m_fdc_properties);
}
static const TypeInfo sun4m_fdc_typeinfo = {
.name = "sun-fdtwo",
.parent = TYPE_SYSBUS_FDC,
.class_init = sun4m_fdc_class_init,
};
static void sysbus_fdc_register_types(void)
{
type_register_static(&sysbus_fdc_common_typeinfo);
type_register_static(&sysbus_fdc_typeinfo);
type_register_static(&sun4m_fdc_typeinfo);
}
type_init(sysbus_fdc_register_types)

220
hw/block/fdc.c
View File

@ -36,7 +36,6 @@
#include "hw/isa/isa.h"
#include "hw/qdev-properties.h"
#include "hw/qdev-properties-system.h"
#include "hw/sysbus.h"
#include "migration/vmstate.h"
#include "hw/block/block.h"
#include "sysemu/block-backend.h"
@ -773,17 +772,6 @@ static FloppyDriveType get_fallback_drive_type(FDrive *drv)
return drv->fdctrl->fallback;
}
#define TYPE_SYSBUS_FDC "base-sysbus-fdc"
OBJECT_DECLARE_SIMPLE_TYPE(FDCtrlSysBus, SYSBUS_FDC)
struct FDCtrlSysBus {
/*< private >*/
SysBusDevice parent_obj;
/*< public >*/
struct FDCtrl state;
};
uint32_t fdctrl_read(void *opaque, uint32_t reg)
{
FDCtrl *fdctrl = opaque;
@ -848,34 +836,6 @@ void fdctrl_write(void *opaque, uint32_t reg, uint32_t value)
}
}
static uint64_t fdctrl_read_mem (void *opaque, hwaddr reg,
unsigned ize)
{
return fdctrl_read(opaque, (uint32_t)reg);
}
static void fdctrl_write_mem (void *opaque, hwaddr reg,
uint64_t value, unsigned size)
{
fdctrl_write(opaque, (uint32_t)reg, value);
}
static const MemoryRegionOps fdctrl_mem_ops = {
.read = fdctrl_read_mem,
.write = fdctrl_write_mem,
.endianness = DEVICE_NATIVE_ENDIAN,
};
static const MemoryRegionOps fdctrl_mem_strict_ops = {
.read = fdctrl_read_mem,
.write = fdctrl_write_mem,
.endianness = DEVICE_NATIVE_ENDIAN,
.valid = {
.min_access_size = 1,
.max_access_size = 1,
},
};
static bool fdrive_media_changed_needed(void *opaque)
{
FDrive *drive = opaque;
@ -1099,19 +1059,6 @@ const VMStateDescription vmstate_fdc = {
}
};
static void fdctrl_external_reset_sysbus(DeviceState *d)
{
FDCtrlSysBus *sys = SYSBUS_FDC(d);
FDCtrl *s = &sys->state;
fdctrl_reset(s, 0);
}
static void fdctrl_handle_tc(void *opaque, int irq, int level)
{
trace_fdctrl_tc_pulse(level);
}
/* Change IRQ state */
static void fdctrl_reset_irq(FDCtrl *fdctrl)
{
@ -2367,42 +2314,6 @@ void fdctrl_init_drives(FloppyBus *bus, DriveInfo **fds)
}
}
void fdctrl_init_sysbus(qemu_irq irq, int dma_chann,
hwaddr mmio_base, DriveInfo **fds)
{
FDCtrl *fdctrl;
DeviceState *dev;
SysBusDevice *sbd;
FDCtrlSysBus *sys;
dev = qdev_new("sysbus-fdc");
sys = SYSBUS_FDC(dev);
fdctrl = &sys->state;
fdctrl->dma_chann = dma_chann; /* FIXME */
sbd = SYS_BUS_DEVICE(dev);
sysbus_realize_and_unref(sbd, &error_fatal);
sysbus_connect_irq(sbd, 0, irq);
sysbus_mmio_map(sbd, 0, mmio_base);
fdctrl_init_drives(&sys->state.bus, fds);
}
void sun4m_fdctrl_init(qemu_irq irq, hwaddr io_base,
DriveInfo **fds, qemu_irq *fdc_tc)
{
DeviceState *dev;
FDCtrlSysBus *sys;
dev = qdev_new("sun-fdtwo");
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
sys = SYSBUS_FDC(dev);
sysbus_connect_irq(SYS_BUS_DEVICE(sys), 0, irq);
sysbus_mmio_map(SYS_BUS_DEVICE(sys), 0, io_base);
*fdc_tc = qdev_get_gpio_in(dev, 0);
fdctrl_init_drives(&sys->state.bus, fds);
}
void fdctrl_realize_common(DeviceState *dev, FDCtrl *fdctrl, Error **errp)
{
int i, j;
@ -2447,139 +2358,8 @@ void fdctrl_realize_common(DeviceState *dev, FDCtrl *fdctrl, Error **errp)
}
}
static void sysbus_fdc_initfn(Object *obj)
{
SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
FDCtrlSysBus *sys = SYSBUS_FDC(obj);
FDCtrl *fdctrl = &sys->state;
fdctrl->dma_chann = -1;
memory_region_init_io(&fdctrl->iomem, obj, &fdctrl_mem_ops, fdctrl,
"fdc", 0x08);
sysbus_init_mmio(sbd, &fdctrl->iomem);
}
static void sun4m_fdc_initfn(Object *obj)
{
SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
FDCtrlSysBus *sys = SYSBUS_FDC(obj);
FDCtrl *fdctrl = &sys->state;
fdctrl->dma_chann = -1;
memory_region_init_io(&fdctrl->iomem, obj, &fdctrl_mem_strict_ops,
fdctrl, "fdctrl", 0x08);
sysbus_init_mmio(sbd, &fdctrl->iomem);
}
static void sysbus_fdc_common_initfn(Object *obj)
{
DeviceState *dev = DEVICE(obj);
SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
FDCtrlSysBus *sys = SYSBUS_FDC(obj);
FDCtrl *fdctrl = &sys->state;
qdev_set_legacy_instance_id(dev, 0 /* io */, 2); /* FIXME */
sysbus_init_irq(sbd, &fdctrl->irq);
qdev_init_gpio_in(dev, fdctrl_handle_tc, 1);
}
static void sysbus_fdc_common_realize(DeviceState *dev, Error **errp)
{
FDCtrlSysBus *sys = SYSBUS_FDC(dev);
FDCtrl *fdctrl = &sys->state;
fdctrl_realize_common(dev, fdctrl, errp);
}
static const VMStateDescription vmstate_sysbus_fdc ={
.name = "fdc",
.version_id = 2,
.minimum_version_id = 2,
.fields = (VMStateField[]) {
VMSTATE_STRUCT(state, FDCtrlSysBus, 0, vmstate_fdc, FDCtrl),
VMSTATE_END_OF_LIST()
}
};
static Property sysbus_fdc_properties[] = {
DEFINE_PROP_SIGNED("fdtypeA", FDCtrlSysBus, state.qdev_for_drives[0].type,
FLOPPY_DRIVE_TYPE_AUTO, qdev_prop_fdc_drive_type,
FloppyDriveType),
DEFINE_PROP_SIGNED("fdtypeB", FDCtrlSysBus, state.qdev_for_drives[1].type,
FLOPPY_DRIVE_TYPE_AUTO, qdev_prop_fdc_drive_type,
FloppyDriveType),
DEFINE_PROP_SIGNED("fallback", FDCtrlSysBus, state.fallback,
FLOPPY_DRIVE_TYPE_144, qdev_prop_fdc_drive_type,
FloppyDriveType),
DEFINE_PROP_END_OF_LIST(),
};
static void sysbus_fdc_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
device_class_set_props(dc, sysbus_fdc_properties);
set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
}
static const TypeInfo sysbus_fdc_info = {
.name = "sysbus-fdc",
.parent = TYPE_SYSBUS_FDC,
.instance_init = sysbus_fdc_initfn,
.class_init = sysbus_fdc_class_init,
};
static Property sun4m_fdc_properties[] = {
DEFINE_PROP_SIGNED("fdtype", FDCtrlSysBus, state.qdev_for_drives[0].type,
FLOPPY_DRIVE_TYPE_AUTO, qdev_prop_fdc_drive_type,
FloppyDriveType),
DEFINE_PROP_SIGNED("fallback", FDCtrlSysBus, state.fallback,
FLOPPY_DRIVE_TYPE_144, qdev_prop_fdc_drive_type,
FloppyDriveType),
DEFINE_PROP_END_OF_LIST(),
};
static void sun4m_fdc_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
device_class_set_props(dc, sun4m_fdc_properties);
set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
}
static const TypeInfo sun4m_fdc_info = {
.name = "sun-fdtwo",
.parent = TYPE_SYSBUS_FDC,
.instance_init = sun4m_fdc_initfn,
.class_init = sun4m_fdc_class_init,
};
static void sysbus_fdc_common_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->realize = sysbus_fdc_common_realize;
dc->reset = fdctrl_external_reset_sysbus;
dc->vmsd = &vmstate_sysbus_fdc;
}
static const TypeInfo sysbus_fdc_type_info = {
.name = TYPE_SYSBUS_FDC,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(FDCtrlSysBus),
.instance_init = sysbus_fdc_common_initfn,
.abstract = true,
.class_init = sysbus_fdc_common_class_init,
};
static void fdc_register_types(void)
{
type_register_static(&sysbus_fdc_type_info);
type_register_static(&sysbus_fdc_info);
type_register_static(&sun4m_fdc_info);
type_register_static(&floppy_bus_info);
type_register_static(&floppy_drive_info);
}

1
hw/block/meson.build
View File

@ -6,6 +6,7 @@ softmmu_ss.add(files(
softmmu_ss.add(when: 'CONFIG_ECC', if_true: files('ecc.c'))
softmmu_ss.add(when: 'CONFIG_FDC', if_true: files('fdc.c'))
softmmu_ss.add(when: 'CONFIG_FDC_ISA', if_true: files('fdc-isa.c'))
softmmu_ss.add(when: 'CONFIG_FDC_SYSBUS', if_true: files('fdc-sysbus.c'))
softmmu_ss.add(when: 'CONFIG_NAND', if_true: files('nand.c'))
softmmu_ss.add(when: 'CONFIG_ONENAND', if_true: files('onenand.c'))
softmmu_ss.add(when: 'CONFIG_PFLASH_CFI01', if_true: files('pflash_cfi01.c'))

2
hw/block/trace-events
View File

@ -3,6 +3,8 @@
# fdc.c
fdc_ioport_read(uint8_t reg, uint8_t value) "read reg 0x%02x val 0x%02x"
fdc_ioport_write(uint8_t reg, uint8_t value) "write reg 0x%02x val 0x%02x"
# fdc-sysbus.c
fdctrl_tc_pulse(int level) "TC pulse: %u"
# pflash_cfi01.c

2
hw/mips/Kconfig
View File

@ -20,7 +20,7 @@ config JAZZ
select G364FB
select DP8393X
select ESP
select FDC
select FDC_SYSBUS
select MC146818RTC
select PCKBD
select SERIAL

2
hw/sparc/Kconfig
View File

@ -8,7 +8,7 @@ config SUN4M
select UNIMP
select ESCC
select ESP
select FDC
select FDC_SYSBUS
select SLAVIO
select LANCE
select M48T59