new file mode 100644
@@ -0,0 +1,158 @@
+/*
+ * 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.
+ */
+#ifndef HW_BLOCK_FDC_INTERNAL_H
+#define HW_BLOCK_FDC_INTERNAL_H
+
+#include "exec/memory.h"
+#include "exec/ioport.h"
+#include "hw/block/block.h"
+#include "hw/block/fdc.h"
+#include "qapi/qapi-types-block.h"
+
+typedef struct FDCtrl FDCtrl;
+
+/* Floppy bus emulation */
+
+typedef struct FloppyBus {
+ BusState bus;
+ FDCtrl *fdc;
+} FloppyBus;
+
+/* Floppy disk drive emulation */
+
+typedef enum FDriveRate {
+ FDRIVE_RATE_500K = 0x00, /* 500 Kbps */
+ FDRIVE_RATE_300K = 0x01, /* 300 Kbps */
+ FDRIVE_RATE_250K = 0x02, /* 250 Kbps */
+ FDRIVE_RATE_1M = 0x03, /* 1 Mbps */
+} FDriveRate;
+
+typedef enum FDriveSize {
+ FDRIVE_SIZE_UNKNOWN,
+ FDRIVE_SIZE_350,
+ FDRIVE_SIZE_525,
+} FDriveSize;
+
+typedef struct FDFormat {
+ FloppyDriveType drive;
+ uint8_t last_sect;
+ uint8_t max_track;
+ uint8_t max_head;
+ FDriveRate rate;
+} FDFormat;
+
+typedef enum FDiskFlags {
+ FDISK_DBL_SIDES = 0x01,
+} FDiskFlags;
+
+typedef struct FDrive {
+ FDCtrl *fdctrl;
+ BlockBackend *blk;
+ BlockConf *conf;
+ /* Drive status */
+ FloppyDriveType drive; /* CMOS drive type */
+ uint8_t perpendicular; /* 2.88 MB access mode */
+ /* Position */
+ uint8_t head;
+ uint8_t track;
+ uint8_t sect;
+ /* Media */
+ FloppyDriveType disk; /* Current disk type */
+ FDiskFlags flags;
+ uint8_t last_sect; /* Nb sector per track */
+ uint8_t max_track; /* Nb of tracks */
+ uint16_t bps; /* Bytes per sector */
+ uint8_t ro; /* Is read-only */
+ uint8_t media_changed; /* Is media changed */
+ uint8_t media_rate; /* Data rate of medium */
+
+ bool media_validated; /* Have we validated the media? */
+} FDrive;
+
+struct FDCtrl {
+ MemoryRegion iomem;
+ qemu_irq irq;
+ /* Controller state */
+ QEMUTimer *result_timer;
+ int dma_chann;
+ uint8_t phase;
+ IsaDma *dma;
+ /* Controller's identification */
+ uint8_t version;
+ /* HW */
+ uint8_t sra;
+ uint8_t srb;
+ uint8_t dor;
+ uint8_t dor_vmstate; /* only used as temp during vmstate */
+ uint8_t tdr;
+ uint8_t dsr;
+ uint8_t msr;
+ uint8_t cur_drv;
+ uint8_t status0;
+ uint8_t status1;
+ uint8_t status2;
+ /* Command FIFO */
+ uint8_t *fifo;
+ int32_t fifo_size;
+ uint32_t data_pos;
+ uint32_t data_len;
+ uint8_t data_state;
+ uint8_t data_dir;
+ uint8_t eot; /* last wanted sector */
+ /* States kept only to be returned back */
+ /* precompensation */
+ uint8_t precomp_trk;
+ uint8_t config;
+ uint8_t lock;
+ /* Power down config (also with status regB access mode */
+ uint8_t pwrd;
+ /* Floppy drives */
+ FloppyBus bus;
+ uint8_t num_floppies;
+ FDrive drives[MAX_FD];
+ struct {
+ FloppyDriveType type;
+ } qdev_for_drives[MAX_FD];
+ int reset_sensei;
+ FloppyDriveType fallback; /* type=auto failure fallback */
+ /* Timers state */
+ uint8_t timer0;
+ uint8_t timer1;
+ PortioList portio_list;
+};
+
+extern const FDFormat fd_formats[];
+extern const VMStateDescription vmstate_fdc;
+
+uint32_t fdctrl_read(void *opaque, uint32_t reg);
+void fdctrl_write(void *opaque, uint32_t reg, uint32_t value);
+void fdctrl_reset(FDCtrl *fdctrl, int do_irq);
+void fdctrl_realize_common(DeviceState *dev, FDCtrl *fdctrl, Error **errp);
+
+int fdctrl_transfer_handler(void *opaque, int nchan, int dma_pos, int dma_len);
+
+void fdctrl_init_drives(FloppyBus *bus, DriveInfo **fds);
+
+#endif
@@ -48,6 +48,7 @@
#include "qemu/module.h"
#include "trace.h"
#include "qom/object.h"
+#include "fdc-internal.h"
/********************************************************/
/* debug Floppy devices */
@@ -68,15 +69,8 @@
#define TYPE_FLOPPY_BUS "floppy-bus"
OBJECT_DECLARE_SIMPLE_TYPE(FloppyBus, FLOPPY_BUS)
-typedef struct FDCtrl FDCtrl;
-typedef struct FDrive FDrive;
static FDrive *get_drv(FDCtrl *fdctrl, int unit);
-struct FloppyBus {
- BusState bus;
- FDCtrl *fdc;
-};
-
static const TypeInfo floppy_bus_info = {
.name = TYPE_FLOPPY_BUS,
.parent = TYPE_BUS,
@@ -93,32 +87,11 @@ static void floppy_bus_create(FDCtrl *fdc, FloppyBus *bus, DeviceState *dev)
/********************************************************/
/* Floppy drive emulation */
-typedef enum FDriveRate {
- FDRIVE_RATE_500K = 0x00, /* 500 Kbps */
- FDRIVE_RATE_300K = 0x01, /* 300 Kbps */
- FDRIVE_RATE_250K = 0x02, /* 250 Kbps */
- FDRIVE_RATE_1M = 0x03, /* 1 Mbps */
-} FDriveRate;
-
-typedef enum FDriveSize {
- FDRIVE_SIZE_UNKNOWN,
- FDRIVE_SIZE_350,
- FDRIVE_SIZE_525,
-} FDriveSize;
-
-typedef struct FDFormat {
- FloppyDriveType drive;
- uint8_t last_sect;
- uint8_t max_track;
- uint8_t max_head;
- FDriveRate rate;
-} FDFormat;
-
/* In many cases, the total sector size of a format is enough to uniquely
* identify it. However, there are some total sector collisions between
* formats of different physical size, and these are noted below by
* highlighting the total sector size for entries with collisions. */
-static const FDFormat fd_formats[] = {
+const FDFormat fd_formats[] = {
/* First entry is default format */
/* 1.44 MB 3"1/2 floppy disks */
{ FLOPPY_DRIVE_TYPE_144, 18, 80, 1, FDRIVE_RATE_500K, }, /* 3.5" 2880 */
@@ -186,35 +159,6 @@ static FDriveSize drive_size(FloppyDriveType drive)
#define FD_SECTOR_SC 2 /* Sector size code */
#define FD_RESET_SENSEI_COUNT 4 /* Number of sense interrupts on RESET */
-/* Floppy disk drive emulation */
-typedef enum FDiskFlags {
- FDISK_DBL_SIDES = 0x01,
-} FDiskFlags;
-
-struct FDrive {
- FDCtrl *fdctrl;
- BlockBackend *blk;
- BlockConf *conf;
- /* Drive status */
- FloppyDriveType drive; /* CMOS drive type */
- uint8_t perpendicular; /* 2.88 MB access mode */
- /* Position */
- uint8_t head;
- uint8_t track;
- uint8_t sect;
- /* Media */
- FloppyDriveType disk; /* Current disk type */
- FDiskFlags flags;
- uint8_t last_sect; /* Nb sector per track */
- uint8_t max_track; /* Nb of tracks */
- uint16_t bps; /* Bytes per sector */
- uint8_t ro; /* Is read-only */
- uint8_t media_changed; /* Is media changed */
- uint8_t media_rate; /* Data rate of medium */
-
- bool media_validated; /* Have we validated the media? */
-};
-
static FloppyDriveType get_fallback_drive_type(FDrive *drv);
@@ -626,10 +570,7 @@ static const TypeInfo floppy_drive_info = {
/********************************************************/
/* Intel 82078 floppy disk controller emulation */
-static void fdctrl_reset(FDCtrl *fdctrl, int do_irq);
static void fdctrl_to_command_phase(FDCtrl *fdctrl);
-static int fdctrl_transfer_handler (void *opaque, int nchan,
- int dma_pos, int dma_len);
static void fdctrl_raise_irq(FDCtrl *fdctrl);
static FDrive *get_cur_drv(FDCtrl *fdctrl);
@@ -828,58 +769,6 @@ enum {
#define FD_MULTI_TRACK(state) ((state) & FD_STATE_MULTI)
#define FD_FORMAT_CMD(state) ((state) & FD_STATE_FORMAT)
-struct FDCtrl {
- MemoryRegion iomem;
- qemu_irq irq;
- /* Controller state */
- QEMUTimer *result_timer;
- int dma_chann;
- uint8_t phase;
- IsaDma *dma;
- /* Controller's identification */
- uint8_t version;
- /* HW */
- uint8_t sra;
- uint8_t srb;
- uint8_t dor;
- uint8_t dor_vmstate; /* only used as temp during vmstate */
- uint8_t tdr;
- uint8_t dsr;
- uint8_t msr;
- uint8_t cur_drv;
- uint8_t status0;
- uint8_t status1;
- uint8_t status2;
- /* Command FIFO */
- uint8_t *fifo;
- int32_t fifo_size;
- uint32_t data_pos;
- uint32_t data_len;
- uint8_t data_state;
- uint8_t data_dir;
- uint8_t eot; /* last wanted sector */
- /* States kept only to be returned back */
- /* precompensation */
- uint8_t precomp_trk;
- uint8_t config;
- uint8_t lock;
- /* Power down config (also with status regB access mode */
- uint8_t pwrd;
- /* Floppy drives */
- FloppyBus bus;
- uint8_t num_floppies;
- FDrive drives[MAX_FD];
- struct {
- FloppyDriveType type;
- } qdev_for_drives[MAX_FD];
- int reset_sensei;
- FloppyDriveType fallback; /* type=auto failure fallback */
- /* Timers state */
- uint8_t timer0;
- uint8_t timer1;
- PortioList portio_list;
-};
-
static FloppyDriveType get_fallback_drive_type(FDrive *drv)
{
return drv->fdctrl->fallback;
@@ -909,7 +798,7 @@ struct FDCtrlISABus {
int32_t bootindexB;
};
-static uint32_t fdctrl_read (void *opaque, uint32_t reg)
+uint32_t fdctrl_read(void *opaque, uint32_t reg)
{
FDCtrl *fdctrl = opaque;
uint32_t retval;
@@ -946,7 +835,7 @@ static uint32_t fdctrl_read (void *opaque, uint32_t reg)
return retval;
}
-static void fdctrl_write (void *opaque, uint32_t reg, uint32_t value)
+void fdctrl_write(void *opaque, uint32_t reg, uint32_t value)
{
FDCtrl *fdctrl = opaque;
@@ -1178,7 +1067,7 @@ static const VMStateDescription vmstate_fdc_phase = {
}
};
-static const VMStateDescription vmstate_fdc = {
+const VMStateDescription vmstate_fdc = {
.name = "fdc",
.version_id = 2,
.minimum_version_id = 2,
@@ -1268,7 +1157,7 @@ static void fdctrl_raise_irq(FDCtrl *fdctrl)
}
/* Reset controller */
-static void fdctrl_reset(FDCtrl *fdctrl, int do_irq)
+void fdctrl_reset(FDCtrl *fdctrl, int do_irq)
{
int i;
@@ -1747,8 +1636,7 @@ static void fdctrl_start_transfer_del(FDCtrl *fdctrl, int direction)
}
/* handlers for DMA transfers */
-static int fdctrl_transfer_handler (void *opaque, int nchan,
- int dma_pos, int dma_len)
+int fdctrl_transfer_handler(void *opaque, int nchan, int dma_pos, int dma_len)
{
FDCtrl *fdctrl;
FDrive *cur_drv;
@@ -2484,7 +2372,7 @@ static void fdctrl_result_timer(void *opaque)
/* Init functions */
-static void fdctrl_init_drives(FloppyBus *bus, DriveInfo **fds)
+void fdctrl_init_drives(FloppyBus *bus, DriveInfo **fds)
{
DeviceState *dev;
int i;
@@ -2542,8 +2430,7 @@ void sun4m_fdctrl_init(qemu_irq irq, hwaddr io_base,
fdctrl_init_drives(&sys->state.bus, fds);
}
-static void fdctrl_realize_common(DeviceState *dev, FDCtrl *fdctrl,
- Error **errp)
+void fdctrl_realize_common(DeviceState *dev, FDCtrl *fdctrl, Error **errp)
{
int i, j;
FDrive *drive;
@@ -1671,6 +1671,7 @@ M: John Snow <jsnow@redhat.com>
L: qemu-block@nongnu.org
S: Supported
F: hw/block/fdc.c
+F: hw/block/fdc-internal.h
F: include/hw/block/fdc.h
F: tests/qtest/fdc-test.c
T: git https://gitlab.com/jsnow/qemu.git ide