diff options
author | Philippe Mathieu-Daudé <philmd@redhat.com> | 2021-06-14 21:32:19 +0200 |
---|---|---|
committer | John Snow <jsnow@redhat.com> | 2021-06-25 08:53:28 -0400 |
commit | 1430759ec3e4cb92da224d739c914a0e8d78d786 (patch) | |
tree | 0d8028029dbc23a250cf0789b7c55b0320d6c7c6 /hw/block | |
parent | 72ea60e4114272f3030455c214e86bcf1c8a1a9e (diff) |
hw/block/fdc: Extract SysBus floppy controllers to fdc-sysbus.c
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>
Diffstat (limited to 'hw/block')
-rw-r--r-- | hw/block/Kconfig | 4 | ||||
-rw-r--r-- | hw/block/fdc-sysbus.c | 249 | ||||
-rw-r--r-- | hw/block/fdc.c | 220 | ||||
-rw-r--r-- | hw/block/meson.build | 1 | ||||
-rw-r--r-- | hw/block/trace-events | 2 |
5 files changed, 256 insertions, 220 deletions
diff --git a/hw/block/Kconfig b/hw/block/Kconfig index 8c3be60a19..9e8f28f982 100644 --- a/hw/block/Kconfig +++ b/hw/block/Kconfig @@ -6,6 +6,10 @@ config FDC_ISA depends on ISA_BUS select FDC +config FDC_SYSBUS + bool + select FDC + config SSI_M25P80 bool diff --git a/hw/block/fdc-sysbus.c b/hw/block/fdc-sysbus.c new file mode 100644 index 0000000000..c6308f5300 --- /dev/null +++ b/hw/block/fdc-sysbus.c @@ -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) diff --git a/hw/block/fdc.c b/hw/block/fdc.c index aa70eb97c6..9014cd30b3 100644 --- a/hw/block/fdc.c +++ b/hw/block/fdc.c @@ -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); } diff --git a/hw/block/meson.build b/hw/block/meson.build index 8cc79b5fcb..2389326112 100644 --- a/hw/block/meson.build +++ b/hw/block/meson.build @@ -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')) diff --git a/hw/block/trace-events b/hw/block/trace-events index 6a0d973805..d86b53520c 100644 --- a/hw/block/trace-events +++ b/hw/block/trace-events @@ -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 |