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hw/isa/superio: Factor out the floppy disc controller code from pc87312.c

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Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180308223946.26784-13-f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé 2018-03-08 23:39:33 +01:00 committed by Paolo Bonzini
parent cd9526ab7c
commit 6f6695b136
5 changed files with 58 additions and 32 deletions
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36
hw/isa/isa-superio.c
View File

@ -11,7 +11,10 @@
*/
#include "qemu/osdep.h"
#include "qemu/error-report.h"
#include "qapi/error.h"
#include "sysemu/sysemu.h"
#include "sysemu/block-backend.h"
#include "sysemu/blockdev.h"
#include "chardev/char.h"
#include "hw/isa/superio.h"
#include "hw/char/serial.h"
@ -25,6 +28,7 @@ static void isa_superio_realize(DeviceState *dev, Error **errp)
ISADevice *isa;
DeviceState *d;
Chardev *chr;
DriveInfo *drive;
char *name;
int i;
@ -107,6 +111,38 @@ static void isa_superio_realize(DeviceState *dev, Error **errp)
g_free(name);
}
}
/* Floppy disc */
if (!k->floppy.is_enabled || k->floppy.is_enabled(sio, 0)) {
isa = isa_create(bus, "isa-fdc");
d = DEVICE(isa);
if (k->floppy.get_iobase) {
qdev_prop_set_uint32(d, "iobase", k->floppy.get_iobase(sio, 0));
}
if (k->floppy.get_irq) {
qdev_prop_set_uint32(d, "irq", k->floppy.get_irq(sio, 0));
}
/* FIXME use a qdev drive property instead of drive_get() */
drive = drive_get(IF_FLOPPY, 0, 0);
if (drive != NULL) {
qdev_prop_set_drive(d, "driveA", blk_by_legacy_dinfo(drive),
&error_fatal);
}
/* FIXME use a qdev drive property instead of drive_get() */
drive = drive_get(IF_FLOPPY, 0, 1);
if (drive != NULL) {
qdev_prop_set_drive(d, "driveB", blk_by_legacy_dinfo(drive),
&error_fatal);
}
qdev_init_nofail(d);
sio->floppy = isa;
trace_superio_create_floppy(0,
k->floppy.get_iobase ?
k->floppy.get_iobase(sio, 0) : -1,
k->floppy.get_irq ?
k->floppy.get_irq(sio, 0) : -1);
}
}
static void isa_superio_class_init(ObjectClass *oc, void *data)

46
hw/isa/pc87312.c
View File

@ -27,8 +27,6 @@
#include "hw/isa/pc87312.h"
#include "qapi/error.h"
#include "qemu/error-report.h"
#include "sysemu/block-backend.h"
#include "sysemu/blockdev.h"
#include "trace.h"
@ -129,16 +127,26 @@ static bool is_uart_enabled(ISASuperIODevice *sio, uint8_t i)
/* Floppy controller */
static inline bool is_fdc_enabled(PC87312State *s)
static bool is_fdc_enabled(ISASuperIODevice *sio, uint8_t index)
{
PC87312State *s = PC87312(sio);
assert(!index);
return s->regs[REG_FER] & FER_FDC_EN;
}
static inline uint16_t get_fdc_iobase(PC87312State *s)
static uint16_t get_fdc_iobase(ISASuperIODevice *sio, uint8_t index)
{
PC87312State *s = PC87312(sio);
assert(!index);
return (s->regs[REG_FER] & FER_FDC_ADDR) ? 0x370 : 0x3f0;
}
static unsigned int get_fdc_irq(ISASuperIODevice *sio, uint8_t index)
{
assert(!index);
return 6;
}
/* IDE controller */
@ -272,7 +280,6 @@ static void pc87312_realize(DeviceState *dev, Error **errp)
DeviceState *d;
ISADevice *isa;
ISABus *bus;
DriveInfo *drive;
Error *local_err = NULL;
s = PC87312(dev);
@ -287,28 +294,6 @@ static void pc87312_realize(DeviceState *dev, Error **errp)
return;
}
if (is_fdc_enabled(s)) {
isa = isa_create(bus, "isa-fdc");
d = DEVICE(isa);
qdev_prop_set_uint32(d, "iobase", get_fdc_iobase(s));
qdev_prop_set_uint32(d, "irq", 6);
/* FIXME use a qdev drive property instead of drive_get() */
drive = drive_get(IF_FLOPPY, 0, 0);
if (drive != NULL) {
qdev_prop_set_drive(d, "driveA", blk_by_legacy_dinfo(drive),
&error_fatal);
}
/* FIXME use a qdev drive property instead of drive_get() */
drive = drive_get(IF_FLOPPY, 0, 1);
if (drive != NULL) {
qdev_prop_set_drive(d, "driveB", blk_by_legacy_dinfo(drive),
&error_fatal);
}
qdev_init_nofail(d);
s->fdc.dev = isa;
trace_pc87312_info_floppy(get_fdc_iobase(s));
}
if (is_ide_enabled(s)) {
isa = isa_create(bus, "isa-ide");
d = DEVICE(isa);
@ -370,6 +355,12 @@ static void pc87312_class_init(ObjectClass *klass, void *data)
.get_iobase = get_uart_iobase,
.get_irq = get_uart_irq,
};
sc->floppy = (ISASuperIOFuncs){
.count = 1,
.is_enabled = is_fdc_enabled,
.get_iobase = get_fdc_iobase,
.get_irq = get_fdc_irq,
};
}
static const TypeInfo pc87312_type_info = {
@ -378,6 +369,7 @@ static const TypeInfo pc87312_type_info = {
.instance_size = sizeof(PC87312State),
.instance_init = pc87312_initfn,
.class_init = pc87312_class_init,
/* FIXME use a qdev drive property instead of drive_get() */
};
static void pc87312_register_types(void)

2
hw/isa/trace-events
View File

@ -3,9 +3,9 @@
# hw/isa/isa-superio.c
superio_create_parallel(int id, uint16_t base, unsigned int irq) "id=%d, base 0x%03x, irq %u"
superio_create_serial(int id, uint16_t base, unsigned int irq) "id=%d, base 0x%03x, irq %u"
superio_create_floppy(int id, uint16_t base, unsigned int irq) "id=%d, base 0x%03x, irq %u"
# hw/isa/pc87312.c
pc87312_io_read(uint32_t addr, uint32_t val) "read addr=0x%x val=0x%x"
pc87312_io_write(uint32_t addr, uint32_t val) "write addr=0x%x val=0x%x"
pc87312_info_floppy(uint32_t base) "base 0x%x"
pc87312_info_ide(uint32_t base) "base 0x%x"

4
include/hw/isa/pc87312.h
View File

@ -39,10 +39,6 @@ typedef struct PC87312State {
uint16_t iobase;
uint8_t config; /* initial configuration */
struct {
ISADevice *dev;
} fdc;
struct {
ISADevice *dev;
} ide;

2
include/hw/isa/superio.h
View File

@ -29,6 +29,7 @@ typedef struct ISASuperIODevice {
ISADevice *parallel[MAX_PARALLEL_PORTS];
ISADevice *serial[MAX_SERIAL_PORTS];
ISADevice *floppy;
} ISASuperIODevice;
typedef struct ISASuperIOFuncs {
@ -47,6 +48,7 @@ typedef struct ISASuperIOClass {
ISASuperIOFuncs parallel;
ISASuperIOFuncs serial;
ISASuperIOFuncs floppy;
} ISASuperIOClass;
#endif /* HW_ISA_SUPERIO_H */