/*
- * QEMU Floppy disk emulator
- *
- * Copyright (c) 2003 Jocelyn Mayer
- *
+ * QEMU Floppy disk emulator (Intel 82078)
+ *
+ * Copyright (c) 2003, 2007 Jocelyn Mayer
+ *
* 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
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <inttypes.h>
-
+/*
+ * The controller is used in Sun4m systems in a slightly different
+ * way. There are changes in DOR register and DMA is not available.
+ */
#include "vl.h"
/********************************************************/
FDRIVE_DISK_288 = 0x01, /* 2.88 MB disk */
FDRIVE_DISK_144 = 0x02, /* 1.44 MB disk */
FDRIVE_DISK_720 = 0x03, /* 720 kB disk */
- FDRIVE_DISK_NONE = 0x04, /* No disk */
+ FDRIVE_DISK_USER = 0x04, /* User defined geometry */
+ FDRIVE_DISK_NONE = 0x05, /* No disk */
} fdisk_type_t;
typedef enum fdrive_type_t {
FDRIVE_DRV_NONE = 0x03, /* No drive connected */
} fdrive_type_t;
+typedef enum fdrive_flags_t {
+ FDRIVE_MOTOR_ON = 0x01, /* motor on/off */
+} fdrive_flags_t;
+
+typedef enum fdisk_flags_t {
+ FDISK_DBL_SIDES = 0x01,
+} fdisk_flags_t;
+
typedef struct fdrive_t {
BlockDriverState *bs;
/* Drive status */
fdrive_type_t drive;
- uint8_t motor; /* on/off */
+ fdrive_flags_t drflags;
uint8_t perpendicular; /* 2.88 MB access mode */
- uint8_t rv; /* Revalidated */
/* Position */
uint8_t head;
uint8_t track;
uint8_t dir; /* Direction */
uint8_t rw; /* Read/write */
/* Media */
- fdisk_type_t disk; /* Disk type */
+ fdisk_flags_t 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 */
} fdrive_t;
-static void fd_init (fdrive_t *drv)
+static void fd_init (fdrive_t *drv, BlockDriverState *bs)
{
/* Drive */
- drv->bs = NULL;
-// drv->drive = FDRIVE_DRV_288;
- drv->drive = FDRIVE_DRV_144;
- drv->motor = 0;
+ drv->bs = bs;
+ drv->drive = FDRIVE_DRV_NONE;
+ drv->drflags = 0;
drv->perpendicular = 0;
- drv->rv = 0;
/* Disk */
- drv->disk = FDRIVE_DISK_NONE;
- drv->last_sect = 1;
+ drv->last_sect = 0;
drv->max_track = 0;
}
int enable_seek)
{
uint32_t sector;
-
- if (track > drv->max_track) {
- FLOPPY_ERROR("try to read %d %02x %02x (max=%d %02x %02x)\n",
- head, track, sect, 1, drv->max_track, drv->last_sect);
+ int ret;
+
+ if (track > drv->max_track ||
+ (head != 0 && (drv->flags & FDISK_DBL_SIDES) == 0)) {
+ FLOPPY_DPRINTF("try to read %d %02x %02x (max=%d %d %02x %02x)\n",
+ head, track, sect, 1,
+ (drv->flags & FDISK_DBL_SIDES) == 0 ? 0 : 1,
+ drv->max_track, drv->last_sect);
return 2;
}
if (sect > drv->last_sect) {
- FLOPPY_ERROR("try to read %d %02x %02x (max=%d %02x %02x)\n",
- head, track, sect, 1, drv->max_track, drv->last_sect);
+ FLOPPY_DPRINTF("try to read %d %02x %02x (max=%d %d %02x %02x)\n",
+ head, track, sect, 1,
+ (drv->flags & FDISK_DBL_SIDES) == 0 ? 0 : 1,
+ drv->max_track, drv->last_sect);
return 3;
}
sector = _fd_sector(head, track, sect, drv->last_sect);
+ ret = 0;
if (sector != fd_sector(drv)) {
#if 0
if (!enable_seek) {
}
#endif
drv->head = head;
+ if (drv->track != track)
+ ret = 1;
drv->track = track;
drv->sect = sect;
- return 1;
}
- return 0;
+ return ret;
}
/* Set drive back to track 0 */
drv->rw = 0;
}
+/* Recognize floppy formats */
+typedef struct fd_format_t {
+ fdrive_type_t drive;
+ fdisk_type_t disk;
+ uint8_t last_sect;
+ uint8_t max_track;
+ uint8_t max_head;
+ const unsigned char *str;
+} fd_format_t;
+
+static fd_format_t fd_formats[] = {
+ /* First entry is default format */
+ /* 1.44 MB 3"1/2 floppy disks */
+ { FDRIVE_DRV_144, FDRIVE_DISK_144, 18, 80, 1, "1.44 MB 3\"1/2", },
+ { FDRIVE_DRV_144, FDRIVE_DISK_144, 20, 80, 1, "1.6 MB 3\"1/2", },
+ { FDRIVE_DRV_144, FDRIVE_DISK_144, 21, 80, 1, "1.68 MB 3\"1/2", },
+ { FDRIVE_DRV_144, FDRIVE_DISK_144, 21, 82, 1, "1.72 MB 3\"1/2", },
+ { FDRIVE_DRV_144, FDRIVE_DISK_144, 21, 83, 1, "1.74 MB 3\"1/2", },
+ { FDRIVE_DRV_144, FDRIVE_DISK_144, 22, 80, 1, "1.76 MB 3\"1/2", },
+ { FDRIVE_DRV_144, FDRIVE_DISK_144, 23, 80, 1, "1.84 MB 3\"1/2", },
+ { FDRIVE_DRV_144, FDRIVE_DISK_144, 24, 80, 1, "1.92 MB 3\"1/2", },
+ /* 2.88 MB 3"1/2 floppy disks */
+ { FDRIVE_DRV_288, FDRIVE_DISK_288, 36, 80, 1, "2.88 MB 3\"1/2", },
+ { FDRIVE_DRV_288, FDRIVE_DISK_288, 39, 80, 1, "3.12 MB 3\"1/2", },
+ { FDRIVE_DRV_288, FDRIVE_DISK_288, 40, 80, 1, "3.2 MB 3\"1/2", },
+ { FDRIVE_DRV_288, FDRIVE_DISK_288, 44, 80, 1, "3.52 MB 3\"1/2", },
+ { FDRIVE_DRV_288, FDRIVE_DISK_288, 48, 80, 1, "3.84 MB 3\"1/2", },
+ /* 720 kB 3"1/2 floppy disks */
+ { FDRIVE_DRV_144, FDRIVE_DISK_720, 9, 80, 1, "720 kB 3\"1/2", },
+ { FDRIVE_DRV_144, FDRIVE_DISK_720, 10, 80, 1, "800 kB 3\"1/2", },
+ { FDRIVE_DRV_144, FDRIVE_DISK_720, 10, 82, 1, "820 kB 3\"1/2", },
+ { FDRIVE_DRV_144, FDRIVE_DISK_720, 10, 83, 1, "830 kB 3\"1/2", },
+ { FDRIVE_DRV_144, FDRIVE_DISK_720, 13, 80, 1, "1.04 MB 3\"1/2", },
+ { FDRIVE_DRV_144, FDRIVE_DISK_720, 14, 80, 1, "1.12 MB 3\"1/2", },
+ /* 1.2 MB 5"1/4 floppy disks */
+ { FDRIVE_DRV_120, FDRIVE_DISK_288, 15, 80, 1, "1.2 kB 5\"1/4", },
+ { FDRIVE_DRV_120, FDRIVE_DISK_288, 18, 80, 1, "1.44 MB 5\"1/4", },
+ { FDRIVE_DRV_120, FDRIVE_DISK_288, 18, 82, 1, "1.48 MB 5\"1/4", },
+ { FDRIVE_DRV_120, FDRIVE_DISK_288, 18, 83, 1, "1.49 MB 5\"1/4", },
+ { FDRIVE_DRV_120, FDRIVE_DISK_288, 20, 80, 1, "1.6 MB 5\"1/4", },
+ /* 720 kB 5"1/4 floppy disks */
+ { FDRIVE_DRV_120, FDRIVE_DISK_288, 9, 80, 1, "720 kB 5\"1/4", },
+ { FDRIVE_DRV_120, FDRIVE_DISK_288, 11, 80, 1, "880 kB 5\"1/4", },
+ /* 360 kB 5"1/4 floppy disks */
+ { FDRIVE_DRV_120, FDRIVE_DISK_288, 9, 40, 1, "360 kB 5\"1/4", },
+ { FDRIVE_DRV_120, FDRIVE_DISK_288, 9, 40, 0, "180 kB 5\"1/4", },
+ { FDRIVE_DRV_120, FDRIVE_DISK_288, 10, 41, 1, "410 kB 5\"1/4", },
+ { FDRIVE_DRV_120, FDRIVE_DISK_288, 10, 42, 1, "420 kB 5\"1/4", },
+ /* 320 kB 5"1/4 floppy disks */
+ { FDRIVE_DRV_120, FDRIVE_DISK_288, 8, 40, 1, "320 kB 5\"1/4", },
+ { FDRIVE_DRV_120, FDRIVE_DISK_288, 8, 40, 0, "160 kB 5\"1/4", },
+ /* 360 kB must match 5"1/4 better than 3"1/2... */
+ { FDRIVE_DRV_144, FDRIVE_DISK_720, 9, 80, 0, "360 kB 3\"1/2", },
+ /* end */
+ { FDRIVE_DRV_NONE, FDRIVE_DISK_NONE, -1, -1, 0, NULL, },
+};
+
/* Revalidate a disk drive after a disk change */
-static void fd_revalidate (fdrive_t *drv, int ro)
+static void fd_revalidate (fdrive_t *drv)
{
- int64_t nb_sectors;
+ fd_format_t *parse;
+ int64_t nb_sectors, size;
+ int i, first_match, match;
+ int nb_heads, max_track, last_sect, ro;
FLOPPY_DPRINTF("revalidate\n");
- drv->rv = 0;
- if (drv->bs != NULL) {
- bdrv_get_geometry(drv->bs, &nb_sectors);
-#if 1
- if (nb_sectors > 2880)
-#endif
- {
- /* Pretend we have a 2.88 MB disk */
- drv->disk = FDRIVE_DISK_288;
- drv->last_sect = 36;
- drv->max_track = 80;
-#if 1
- } else if (nb_sectors > 1440) {
- /* Pretend we have a 1.44 MB disk */
- drv->disk = FDRIVE_DISK_144;
- drv->last_sect = 18;
- drv->max_track = 80;
- } else {
- /* Pretend we have a 720 kB disk */
- drv->disk = FDRIVE_DISK_720;
- drv->last_sect = 9;
- drv->max_track = 80;
-#endif
- }
+ if (drv->bs != NULL && bdrv_is_inserted(drv->bs)) {
+ ro = bdrv_is_read_only(drv->bs);
+ bdrv_get_geometry_hint(drv->bs, &nb_heads, &max_track, &last_sect);
+ if (nb_heads != 0 && max_track != 0 && last_sect != 0) {
+ FLOPPY_DPRINTF("User defined disk (%d %d %d)",
+ nb_heads - 1, max_track, last_sect);
+ } else {
+ bdrv_get_geometry(drv->bs, &nb_sectors);
+ match = -1;
+ first_match = -1;
+ for (i = 0;; i++) {
+ parse = &fd_formats[i];
+ if (parse->drive == FDRIVE_DRV_NONE)
+ break;
+ if (drv->drive == parse->drive ||
+ drv->drive == FDRIVE_DRV_NONE) {
+ size = (parse->max_head + 1) * parse->max_track *
+ parse->last_sect;
+ if (nb_sectors == size) {
+ match = i;
+ break;
+ }
+ if (first_match == -1)
+ first_match = i;
+ }
+ }
+ if (match == -1) {
+ if (first_match == -1)
+ match = 1;
+ else
+ match = first_match;
+ parse = &fd_formats[match];
+ }
+ nb_heads = parse->max_head + 1;
+ max_track = parse->max_track;
+ last_sect = parse->last_sect;
+ drv->drive = parse->drive;
+ FLOPPY_DPRINTF("%s floppy disk (%d h %d t %d s) %s\n", parse->str,
+ nb_heads, max_track, last_sect, ro ? "ro" : "rw");
+ }
+ if (nb_heads == 1) {
+ drv->flags &= ~FDISK_DBL_SIDES;
+ } else {
+ drv->flags |= FDISK_DBL_SIDES;
+ }
+ drv->max_track = max_track;
+ drv->last_sect = last_sect;
+ drv->ro = ro;
} else {
- drv->disk = FDRIVE_DISK_NONE;
- drv->last_sect = 1; /* Avoid eventual divide by 0 bugs */
+ FLOPPY_DPRINTF("No disk in drive\n");
+ drv->last_sect = 0;
+ drv->max_track = 0;
+ drv->flags &= ~FDISK_DBL_SIDES;
}
- drv->ro = ro;
- drv->rv = 1;
}
/* Motor control */
static void fd_start (fdrive_t *drv)
{
- drv->motor = 1;
+ drv->drflags |= FDRIVE_MOTOR_ON;
}
static void fd_stop (fdrive_t *drv)
{
- drv->motor = 0;
+ drv->drflags &= ~FDRIVE_MOTOR_ON;
}
/* Re-initialise a drives (motor off, repositioned) */
}
/********************************************************/
-/* Intel 82078 floppy disk controler emulation */
-
-static void fdctrl_reset (int do_irq);
-static void fdctrl_reset_fifo (void);
-static int fdctrl_transfer_handler (void *opaque, target_ulong addr, int size);
-static void fdctrl_raise_irq (uint8_t status);
-
-static uint32_t fdctrl_read_statusB (CPUState *env, uint32_t reg);
-static uint32_t fdctrl_read_dor (CPUState *env, uint32_t reg);
-static void fdctrl_write_dor (CPUState *env, uint32_t reg, uint32_t value);
-static uint32_t fdctrl_read_tape (CPUState *env, uint32_t reg);
-static void fdctrl_write_tape (CPUState *env, uint32_t reg, uint32_t value);
-static uint32_t fdctrl_read_main_status (CPUState *env, uint32_t reg);
-static void fdctrl_write_rate (CPUState *env, uint32_t reg, uint32_t value);
-static uint32_t fdctrl_read_data (CPUState *env, uint32_t reg);
-static void fdctrl_write_data (CPUState *env, uint32_t reg, uint32_t value);
-static uint32_t fdctrl_read_dir (CPUState *env, uint32_t reg);
+/* Intel 82078 floppy disk controller emulation */
+
+static void fdctrl_reset (fdctrl_t *fdctrl, int do_irq);
+static void fdctrl_reset_fifo (fdctrl_t *fdctrl);
+static int fdctrl_transfer_handler (void *opaque, int nchan,
+ int dma_pos, int dma_len);
+static void fdctrl_raise_irq (fdctrl_t *fdctrl, uint8_t status);
+static void fdctrl_result_timer(void *opaque);
+
+static uint32_t fdctrl_read_statusB (fdctrl_t *fdctrl);
+static uint32_t fdctrl_read_dor (fdctrl_t *fdctrl);
+static void fdctrl_write_dor (fdctrl_t *fdctrl, uint32_t value);
+static uint32_t fdctrl_read_tape (fdctrl_t *fdctrl);
+static void fdctrl_write_tape (fdctrl_t *fdctrl, uint32_t value);
+static uint32_t fdctrl_read_main_status (fdctrl_t *fdctrl);
+static void fdctrl_write_rate (fdctrl_t *fdctrl, uint32_t value);
+static uint32_t fdctrl_read_data (fdctrl_t *fdctrl);
+static void fdctrl_write_data (fdctrl_t *fdctrl, uint32_t value);
+static uint32_t fdctrl_read_dir (fdctrl_t *fdctrl);
enum {
- FD_CTRL_ACTIVE = 0x01,
+ FD_CTRL_ACTIVE = 0x01, /* XXX: suppress that */
FD_CTRL_RESET = 0x02,
- FD_CTRL_SLEEP = 0x04,
- FD_CTRL_BUSY = 0x08,
+ FD_CTRL_SLEEP = 0x04, /* XXX: suppress that */
+ FD_CTRL_BUSY = 0x08, /* dma transfer in progress */
FD_CTRL_INTR = 0x10,
};
FD_STATE_STATE = 0x03,
FD_STATE_MULTI = 0x10,
FD_STATE_SEEK = 0x20,
+ FD_STATE_FORMAT = 0x40,
};
#define FD_STATE(state) ((state) & FD_STATE_STATE)
+#define FD_SET_STATE(state, new_state) \
+do { (state) = ((state) & ~FD_STATE_STATE) | (new_state); } while (0)
#define FD_MULTI_TRACK(state) ((state) & FD_STATE_MULTI)
#define FD_DID_SEEK(state) ((state) & FD_STATE_SEEK)
+#define FD_FORMAT_CMD(state) ((state) & FD_STATE_FORMAT)
-typedef struct fdctrl_t {
- /* Controler's identification */
+struct fdctrl_t {
+ fdctrl_t *fdctrl;
+ /* Controller's identification */
uint8_t version;
/* HW */
- int irq_lvl;
+ qemu_irq irq;
int dma_chann;
- /* Controler state */
+ target_phys_addr_t io_base;
+ /* Controller state */
+ QEMUTimer *result_timer;
uint8_t state;
uint8_t dma_en;
uint8_t cur_drv;
uint8_t data_state;
uint8_t data_dir;
uint8_t int_status;
+ uint8_t eot; /* last wanted sector */
/* States kept only to be returned back */
/* Timers state */
uint8_t timer0;
uint8_t pwrd;
/* Floppy drives */
fdrive_t drives[2];
-} fdctrl_t;
+};
-static fdctrl_t fdctrl;
+static uint32_t fdctrl_read (void *opaque, uint32_t reg)
+{
+ fdctrl_t *fdctrl = opaque;
+ uint32_t retval;
+
+ switch (reg & 0x07) {
+#ifdef TARGET_SPARC
+ case 0x00:
+ // Identify to Linux as S82078B
+ retval = fdctrl_read_statusB(fdctrl);
+ break;
+#endif
+ case 0x01:
+ retval = fdctrl_read_statusB(fdctrl);
+ break;
+ case 0x02:
+ retval = fdctrl_read_dor(fdctrl);
+ break;
+ case 0x03:
+ retval = fdctrl_read_tape(fdctrl);
+ break;
+ case 0x04:
+ retval = fdctrl_read_main_status(fdctrl);
+ break;
+ case 0x05:
+ retval = fdctrl_read_data(fdctrl);
+ break;
+ case 0x07:
+ retval = fdctrl_read_dir(fdctrl);
+ break;
+ default:
+ retval = (uint32_t)(-1);
+ break;
+ }
+ FLOPPY_DPRINTF("read reg%d: 0x%02x\n", reg & 7, retval);
+
+ return retval;
+}
+
+static void fdctrl_write (void *opaque, uint32_t reg, uint32_t value)
+{
+ fdctrl_t *fdctrl = opaque;
+
+ FLOPPY_DPRINTF("write reg%d: 0x%02x\n", reg & 7, value);
+
+ switch (reg & 0x07) {
+ case 0x02:
+ fdctrl_write_dor(fdctrl, value);
+ break;
+ case 0x03:
+ fdctrl_write_tape(fdctrl, value);
+ break;
+ case 0x04:
+ fdctrl_write_rate(fdctrl, value);
+ break;
+ case 0x05:
+ fdctrl_write_data(fdctrl, value);
+ break;
+ default:
+ break;
+ }
+}
+
+static uint32_t fdctrl_read_mem (void *opaque, target_phys_addr_t reg)
+{
+ return fdctrl_read(opaque, (uint32_t)reg);
+}
+
+static void fdctrl_write_mem (void *opaque,
+ target_phys_addr_t reg, uint32_t value)
+{
+ fdctrl_write(opaque, (uint32_t)reg, value);
+}
+
+static CPUReadMemoryFunc *fdctrl_mem_read[3] = {
+ fdctrl_read_mem,
+ fdctrl_read_mem,
+ fdctrl_read_mem,
+};
+
+static CPUWriteMemoryFunc *fdctrl_mem_write[3] = {
+ fdctrl_write_mem,
+ fdctrl_write_mem,
+ fdctrl_write_mem,
+};
+
+static void fd_save (QEMUFile *f, fdrive_t *fd)
+{
+ uint8_t tmp;
+
+ tmp = fd->drflags;
+ qemu_put_8s(f, &tmp);
+ qemu_put_8s(f, &fd->head);
+ qemu_put_8s(f, &fd->track);
+ qemu_put_8s(f, &fd->sect);
+ qemu_put_8s(f, &fd->dir);
+ qemu_put_8s(f, &fd->rw);
+}
-void fdctrl_init (int irq_lvl, int dma_chann, int mem_mapped, uint32_t base,
- char boot_device)
+static void fdc_save (QEMUFile *f, void *opaque)
{
-// int io_mem;
+ fdctrl_t *s = opaque;
+
+ qemu_put_8s(f, &s->state);
+ qemu_put_8s(f, &s->dma_en);
+ qemu_put_8s(f, &s->cur_drv);
+ qemu_put_8s(f, &s->bootsel);
+ qemu_put_buffer(f, s->fifo, FD_SECTOR_LEN);
+ qemu_put_be32s(f, &s->data_pos);
+ qemu_put_be32s(f, &s->data_len);
+ qemu_put_8s(f, &s->data_state);
+ qemu_put_8s(f, &s->data_dir);
+ qemu_put_8s(f, &s->int_status);
+ qemu_put_8s(f, &s->eot);
+ qemu_put_8s(f, &s->timer0);
+ qemu_put_8s(f, &s->timer1);
+ qemu_put_8s(f, &s->precomp_trk);
+ qemu_put_8s(f, &s->config);
+ qemu_put_8s(f, &s->lock);
+ qemu_put_8s(f, &s->pwrd);
+ fd_save(f, &s->drives[0]);
+ fd_save(f, &s->drives[1]);
+}
+
+static int fd_load (QEMUFile *f, fdrive_t *fd)
+{
+ uint8_t tmp;
+
+ qemu_get_8s(f, &tmp);
+ fd->drflags = tmp;
+ qemu_get_8s(f, &fd->head);
+ qemu_get_8s(f, &fd->track);
+ qemu_get_8s(f, &fd->sect);
+ qemu_get_8s(f, &fd->dir);
+ qemu_get_8s(f, &fd->rw);
+
+ return 0;
+}
+
+static int fdc_load (QEMUFile *f, void *opaque, int version_id)
+{
+ fdctrl_t *s = opaque;
+ int ret;
+
+ if (version_id != 1)
+ return -EINVAL;
+
+ qemu_get_8s(f, &s->state);
+ qemu_get_8s(f, &s->dma_en);
+ qemu_get_8s(f, &s->cur_drv);
+ qemu_get_8s(f, &s->bootsel);
+ qemu_get_buffer(f, s->fifo, FD_SECTOR_LEN);
+ qemu_get_be32s(f, &s->data_pos);
+ qemu_get_be32s(f, &s->data_len);
+ qemu_get_8s(f, &s->data_state);
+ qemu_get_8s(f, &s->data_dir);
+ qemu_get_8s(f, &s->int_status);
+ qemu_get_8s(f, &s->eot);
+ qemu_get_8s(f, &s->timer0);
+ qemu_get_8s(f, &s->timer1);
+ qemu_get_8s(f, &s->precomp_trk);
+ qemu_get_8s(f, &s->config);
+ qemu_get_8s(f, &s->lock);
+ qemu_get_8s(f, &s->pwrd);
+
+ ret = fd_load(f, &s->drives[0]);
+ if (ret == 0)
+ ret = fd_load(f, &s->drives[1]);
+
+ return ret;
+}
+
+static void fdctrl_external_reset(void *opaque)
+{
+ fdctrl_t *s = opaque;
+
+ fdctrl_reset(s, 0);
+}
+
+fdctrl_t *fdctrl_init (qemu_irq irq, int dma_chann, int mem_mapped,
+ target_phys_addr_t io_base,
+ BlockDriverState **fds)
+{
+ fdctrl_t *fdctrl;
+ int io_mem;
int i;
- FLOPPY_DPRINTF("init controler\n");
- memset(&fdctrl, 0, sizeof(fdctrl));
- fdctrl.version = 0x90; /* Intel 82078 controler */
- fdctrl.irq_lvl = irq_lvl;
- fdctrl.dma_chann = dma_chann;
- fdctrl.config = 0x40; /* Implicit seek, polling & FIFO enabled */
- if (fdctrl.dma_chann != -1) {
- fdctrl.dma_en = 1;
- DMA_register_channel(dma_chann, fdctrl_transfer_handler, &fdctrl);
+ FLOPPY_DPRINTF("init controller\n");
+ fdctrl = qemu_mallocz(sizeof(fdctrl_t));
+ if (!fdctrl)
+ return NULL;
+ fdctrl->result_timer = qemu_new_timer(vm_clock,
+ fdctrl_result_timer, fdctrl);
+
+ fdctrl->version = 0x90; /* Intel 82078 controller */
+ fdctrl->irq = irq;
+ fdctrl->dma_chann = dma_chann;
+ fdctrl->io_base = io_base;
+ fdctrl->config = 0x60; /* Implicit seek, polling & FIFO enabled */
+ if (fdctrl->dma_chann != -1) {
+ fdctrl->dma_en = 1;
+ DMA_register_channel(dma_chann, &fdctrl_transfer_handler, fdctrl);
} else {
- fdctrl.dma_en = 0;
+ fdctrl->dma_en = 0;
}
- for (i = 0; i < MAX_FD; i++)
- fd_init(&fdctrl.drives[i]);
- fdctrl_reset(0);
- fdctrl.state = FD_CTRL_ACTIVE;
+ for (i = 0; i < 2; i++) {
+ fd_init(&fdctrl->drives[i], fds[i]);
+ }
+ fdctrl_reset(fdctrl, 0);
+ fdctrl->state = FD_CTRL_ACTIVE;
if (mem_mapped) {
- FLOPPY_ERROR("memory mapped floppy not supported by now !\n");
-#if 0
- io_mem = cpu_register_io_memory(0, fdctrl_mem_read, fdctrl_mem_write);
- cpu_register_physical_memory(base, 0x08, io_mem);
-#endif
+ io_mem = cpu_register_io_memory(0, fdctrl_mem_read, fdctrl_mem_write, fdctrl);
+ cpu_register_physical_memory(io_base, 0x08, io_mem);
} else {
- register_ioport_read(base + 0x01, 1, fdctrl_read_statusB, 1);
- register_ioport_read(base + 0x02, 1, fdctrl_read_dor, 1);
- register_ioport_write(base + 0x02, 1, fdctrl_write_dor, 1);
- register_ioport_read(base + 0x03, 1, fdctrl_read_tape, 1);
- register_ioport_write(base + 0x03, 1, fdctrl_write_tape, 1);
- register_ioport_read(base + 0x04, 1, fdctrl_read_main_status, 1);
- register_ioport_write(base + 0x04, 1, fdctrl_write_rate, 1);
- register_ioport_read(base + 0x05, 1, fdctrl_read_data, 1);
- register_ioport_write(base + 0x05, 1, fdctrl_write_data, 1);
- register_ioport_read(base + 0x07, 1, fdctrl_read_dir, 1);
+ register_ioport_read((uint32_t)io_base + 0x01, 5, 1, &fdctrl_read,
+ fdctrl);
+ register_ioport_read((uint32_t)io_base + 0x07, 1, 1, &fdctrl_read,
+ fdctrl);
+ register_ioport_write((uint32_t)io_base + 0x01, 5, 1, &fdctrl_write,
+ fdctrl);
+ register_ioport_write((uint32_t)io_base + 0x07, 1, 1, &fdctrl_write,
+ fdctrl);
}
- if (boot_device == 'b')
- fdctrl.bootsel = 1;
- else
- fdctrl.bootsel = 0;
-#if defined (TARGET_I386)
- cmos_register_fd(fdctrl.drives[0].drive, fdctrl.drives[1].drive);
-#endif
+ register_savevm("fdc", io_base, 1, fdc_save, fdc_load, fdctrl);
+ qemu_register_reset(fdctrl_external_reset, fdctrl);
+ for (i = 0; i < 2; i++) {
+ fd_revalidate(&fdctrl->drives[i]);
+ }
+
+ return fdctrl;
}
-int fdctrl_disk_change (int idx, const unsigned char *filename, int ro)
+/* XXX: may change if moved to bdrv */
+int fdctrl_get_drive_type(fdctrl_t *fdctrl, int drive_num)
{
- fdrive_t *drv;
-
- if (idx < 0 || idx > 1)
- return -1;
- FLOPPY_DPRINTF("disk %d change: %s (%s)\n", idx, filename,
- ro == 0 ? "rw" : "ro");
- drv = &fdctrl.drives[idx];
- if (fd_table[idx] != NULL) {
- bdrv_close(fd_table[idx]);
- fd_table[idx] = NULL;
- }
- fd_table[idx] = bdrv_open(filename, ro);
- drv->bs = fd_table[idx];
- if (fd_table[idx] == NULL)
- return -1;
- fd_revalidate(drv, ro);
-#if 0
- fd_recalibrate(drv);
- fdctrl_reset_fifo();
- fdctrl_raise_irq(0x20);
-#endif
-
- return 0;
+ return fdctrl->drives[drive_num].drive;
}
/* Change IRQ state */
-static void fdctrl_reset_irq (void)
+static void fdctrl_reset_irq (fdctrl_t *fdctrl)
{
- if (fdctrl.state & FD_CTRL_INTR) {
- pic_set_irq(fdctrl.irq_lvl, 0);
- fdctrl.state &= ~(FD_CTRL_INTR | FD_CTRL_SLEEP | FD_CTRL_BUSY);
- }
+ FLOPPY_DPRINTF("Reset interrupt\n");
+ qemu_set_irq(fdctrl->irq, 0);
+ fdctrl->state &= ~FD_CTRL_INTR;
}
-static void fdctrl_raise_irq (uint8_t status)
+static void fdctrl_raise_irq (fdctrl_t *fdctrl, uint8_t status)
{
- if (~(fdctrl.state & FD_CTRL_INTR)) {
- pic_set_irq(fdctrl.irq_lvl, 1);
- fdctrl.state |= FD_CTRL_INTR;
+#ifdef TARGET_SPARC
+ // Sparc mutation
+ if (!fdctrl->dma_en) {
+ fdctrl->state &= ~FD_CTRL_BUSY;
+ fdctrl->int_status = status;
+ return;
+ }
+#endif
+ if (~(fdctrl->state & FD_CTRL_INTR)) {
+ qemu_set_irq(fdctrl->irq, 1);
+ fdctrl->state |= FD_CTRL_INTR;
}
FLOPPY_DPRINTF("Set interrupt status to 0x%02x\n", status);
- fdctrl.int_status = status;
+ fdctrl->int_status = status;
}
-/* Reset controler */
-static void fdctrl_reset (int do_irq)
+/* Reset controller */
+static void fdctrl_reset (fdctrl_t *fdctrl, int do_irq)
{
int i;
- FLOPPY_DPRINTF("reset controler\n");
- fdctrl_reset_irq();
- /* Initialise controler */
- fdctrl.cur_drv = 0;
+ FLOPPY_DPRINTF("reset controller\n");
+ fdctrl_reset_irq(fdctrl);
+ /* Initialise controller */
+ fdctrl->cur_drv = 0;
/* FIFO state */
- fdctrl.data_pos = 0;
- fdctrl.data_len = 0;
- fdctrl.data_state = FD_STATE_CMD;
- fdctrl.data_dir = FD_DIR_WRITE;
+ fdctrl->data_pos = 0;
+ fdctrl->data_len = 0;
+ fdctrl->data_state = FD_STATE_CMD;
+ fdctrl->data_dir = FD_DIR_WRITE;
for (i = 0; i < MAX_FD; i++)
- fd_reset(&fdctrl.drives[i]);
- fdctrl_reset_fifo();
+ fd_reset(&fdctrl->drives[i]);
+ fdctrl_reset_fifo(fdctrl);
if (do_irq)
- fdctrl_raise_irq(0x20);
+ fdctrl_raise_irq(fdctrl, 0xc0);
+}
+
+static inline fdrive_t *drv0 (fdctrl_t *fdctrl)
+{
+ return &fdctrl->drives[fdctrl->bootsel];
+}
+
+static inline fdrive_t *drv1 (fdctrl_t *fdctrl)
+{
+ return &fdctrl->drives[1 - fdctrl->bootsel];
+}
+
+static fdrive_t *get_cur_drv (fdctrl_t *fdctrl)
+{
+ return fdctrl->cur_drv == 0 ? drv0(fdctrl) : drv1(fdctrl);
}
/* Status B register : 0x01 (read-only) */
-static uint32_t fdctrl_read_statusB (CPUState *env, uint32_t reg)
+static uint32_t fdctrl_read_statusB (fdctrl_t *fdctrl)
{
- fdctrl_reset_irq();
FLOPPY_DPRINTF("status register: 0x00\n");
-
return 0;
}
/* Digital output register : 0x02 */
-static uint32_t fdctrl_read_dor (CPUState *env, uint32_t reg)
+static uint32_t fdctrl_read_dor (fdctrl_t *fdctrl)
{
- fdrive_t *cur_drv, *drv0, *drv1;
uint32_t retval = 0;
- drv0 = &fdctrl.drives[fdctrl.bootsel];
- drv1 = &fdctrl.drives[1 - fdctrl.bootsel];
- cur_drv = fdctrl.cur_drv == 0 ? drv0 : drv1;
/* Drive motors state indicators */
- retval |= drv1->motor << 5;
- retval |= drv0->motor << 4;
+ if (drv0(fdctrl)->drflags & FDRIVE_MOTOR_ON)
+ retval |= 1 << 5;
+ if (drv1(fdctrl)->drflags & FDRIVE_MOTOR_ON)
+ retval |= 1 << 4;
/* DMA enable */
- retval |= fdctrl.dma_en << 3;
+ retval |= fdctrl->dma_en << 3;
/* Reset indicator */
- retval |= (fdctrl.state & FD_CTRL_RESET) == 0 ? 0x04 : 0;
+ retval |= (fdctrl->state & FD_CTRL_RESET) == 0 ? 0x04 : 0;
/* Selected drive */
- retval |= fdctrl.cur_drv;
+ retval |= fdctrl->cur_drv;
FLOPPY_DPRINTF("digital output register: 0x%02x\n", retval);
return retval;
}
-static void fdctrl_write_dor (CPUState *env, uint32_t reg, uint32_t value)
+static void fdctrl_write_dor (fdctrl_t *fdctrl, uint32_t value)
{
- fdrive_t *drv0, *drv1;
-
- fdctrl_reset_irq();
- drv0 = &fdctrl.drives[fdctrl.bootsel];
- drv1 = &fdctrl.drives[1 - fdctrl.bootsel];
/* Reset mode */
- if (fdctrl.state & FD_CTRL_RESET) {
+ if (fdctrl->state & FD_CTRL_RESET) {
if (!(value & 0x04)) {
- FLOPPY_DPRINTF("Floppy controler in RESET state !\n");
+ FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
return;
}
}
FLOPPY_DPRINTF("digital output register set to 0x%02x\n", value);
/* Drive motors state indicators */
if (value & 0x20)
- fd_start(drv1);
+ fd_start(drv1(fdctrl));
else
- fd_stop(drv1);
+ fd_stop(drv1(fdctrl));
if (value & 0x10)
- fd_start(drv0);
+ fd_start(drv0(fdctrl));
else
- fd_stop(drv0);
+ fd_stop(drv0(fdctrl));
/* DMA enable */
#if 0
- if (fdctrl.dma_chann != -1)
- fdctrl.dma_en = 1 - ((value >> 3) & 1);
+ if (fdctrl->dma_chann != -1)
+ fdctrl->dma_en = 1 - ((value >> 3) & 1);
#endif
/* Reset */
if (!(value & 0x04)) {
- if (!(fdctrl.state & FD_CTRL_RESET)) {
- FLOPPY_DPRINTF("controler enter RESET state\n");
- fdctrl.state |= FD_CTRL_RESET;
- fdctrl_reset(1);
+ if (!(fdctrl->state & FD_CTRL_RESET)) {
+ FLOPPY_DPRINTF("controller enter RESET state\n");
+ fdctrl->state |= FD_CTRL_RESET;
}
} else {
- if (fdctrl.state & FD_CTRL_RESET) {
- FLOPPY_DPRINTF("controler out of RESET state\n");
- fdctrl.state &= ~(FD_CTRL_RESET | FD_CTRL_SLEEP);
+ if (fdctrl->state & FD_CTRL_RESET) {
+ FLOPPY_DPRINTF("controller out of RESET state\n");
+ fdctrl_reset(fdctrl, 1);
+ fdctrl->state &= ~(FD_CTRL_RESET | FD_CTRL_SLEEP);
}
}
/* Selected drive */
- fdctrl.cur_drv = value & 1;
+ fdctrl->cur_drv = value & 1;
}
/* Tape drive register : 0x03 */
-static uint32_t fdctrl_read_tape (CPUState *env, uint32_t reg)
+static uint32_t fdctrl_read_tape (fdctrl_t *fdctrl)
{
uint32_t retval = 0;
- fdctrl_reset_irq();
/* Disk boot selection indicator */
- retval |= fdctrl.bootsel << 2;
+ retval |= fdctrl->bootsel << 2;
/* Tape indicators: never allowed */
FLOPPY_DPRINTF("tape drive register: 0x%02x\n", retval);
return retval;
}
-static void fdctrl_write_tape (CPUState *env, uint32_t reg, uint32_t value)
+static void fdctrl_write_tape (fdctrl_t *fdctrl, uint32_t value)
{
- fdctrl_reset_irq();
/* Reset mode */
- if (fdctrl.state & FD_CTRL_RESET) {
- FLOPPY_DPRINTF("Floppy controler in RESET state !\n");
+ if (fdctrl->state & FD_CTRL_RESET) {
+ FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
return;
}
FLOPPY_DPRINTF("tape drive register set to 0x%02x\n", value);
/* Disk boot selection indicator */
- fdctrl.bootsel = (value >> 2) & 1;
+ fdctrl->bootsel = (value >> 2) & 1;
/* Tape indicators: never allow */
}
/* Main status register : 0x04 (read) */
-static uint32_t fdctrl_read_main_status (CPUState *env, uint32_t reg)
+static uint32_t fdctrl_read_main_status (fdctrl_t *fdctrl)
{
uint32_t retval = 0;
- fdctrl_reset_irq();
- fdctrl.state &= ~(FD_CTRL_SLEEP | FD_CTRL_RESET);
- if (!(fdctrl.state & FD_CTRL_BUSY)) {
+ fdctrl->state &= ~(FD_CTRL_SLEEP | FD_CTRL_RESET);
+ if (!(fdctrl->state & FD_CTRL_BUSY)) {
/* Data transfer allowed */
retval |= 0x80;
/* Data transfer direction indicator */
- if (fdctrl.data_dir == FD_DIR_READ)
+ if (fdctrl->data_dir == FD_DIR_READ)
retval |= 0x40;
}
/* Should handle 0x20 for SPECIFY command */
/* Command busy indicator */
- if (FD_STATE(fdctrl.data_state) == FD_STATE_DATA ||
- FD_STATE(fdctrl.data_state) == FD_STATE_STATUS)
+ if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA ||
+ FD_STATE(fdctrl->data_state) == FD_STATE_STATUS)
retval |= 0x10;
FLOPPY_DPRINTF("main status register: 0x%02x\n", retval);
}
/* Data select rate register : 0x04 (write) */
-static void fdctrl_write_rate (CPUState *env, uint32_t reg, uint32_t value)
+static void fdctrl_write_rate (fdctrl_t *fdctrl, uint32_t value)
{
- fdctrl_reset_irq();
/* Reset mode */
- if (fdctrl.state & FD_CTRL_RESET) {
- if (reg != 0x2 || !(value & 0x04)) {
- FLOPPY_DPRINTF("Floppy controler in RESET state !\n");
+ if (fdctrl->state & FD_CTRL_RESET) {
+ FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
return;
}
- }
FLOPPY_DPRINTF("select rate register set to 0x%02x\n", value);
/* Reset: autoclear */
if (value & 0x80) {
- fdctrl.state |= FD_CTRL_RESET;
- fdctrl_reset(1);
- fdctrl.state &= ~FD_CTRL_RESET;
+ fdctrl->state |= FD_CTRL_RESET;
+ fdctrl_reset(fdctrl, 1);
+ fdctrl->state &= ~FD_CTRL_RESET;
}
if (value & 0x40) {
- fdctrl.state |= FD_CTRL_SLEEP;
- fdctrl_reset(1);
+ fdctrl->state |= FD_CTRL_SLEEP;
+ fdctrl_reset(fdctrl, 1);
}
// fdctrl.precomp = (value >> 2) & 0x07;
}
+static int fdctrl_media_changed(fdrive_t *drv)
+{
+ int ret;
+ if (!drv->bs)
+ return 0;
+ ret = bdrv_media_changed(drv->bs);
+ if (ret) {
+ fd_revalidate(drv);
+ }
+ return ret;
+}
+
/* Digital input register : 0x07 (read-only) */
-static uint32_t fdctrl_read_dir (CPUState *env, uint32_t reg)
+static uint32_t fdctrl_read_dir (fdctrl_t *fdctrl)
{
- fdrive_t *drv0, *drv1;
uint32_t retval = 0;
- fdctrl_reset_irq();
- drv0 = &fdctrl.drives[fdctrl.bootsel];
- drv1 = &fdctrl.drives[1 - fdctrl.bootsel];
- if (drv0->rv || drv1->rv)
+ if (fdctrl_media_changed(drv0(fdctrl)) ||
+ fdctrl_media_changed(drv1(fdctrl)))
retval |= 0x80;
if (retval != 0)
- FLOPPY_ERROR("Floppy digital input register: 0x%02x\n", retval);
- drv0->rv = 0;
- drv1->rv = 0;
+ FLOPPY_DPRINTF("Floppy digital input register: 0x%02x\n", retval);
return retval;
}
/* FIFO state control */
-static void fdctrl_reset_fifo (void)
+static void fdctrl_reset_fifo (fdctrl_t *fdctrl)
{
- fdctrl.data_dir = FD_DIR_WRITE;
- fdctrl.data_pos = 0;
- fdctrl.data_state = FD_STATE_CMD;
+ fdctrl->data_dir = FD_DIR_WRITE;
+ fdctrl->data_pos = 0;
+ FD_SET_STATE(fdctrl->data_state, FD_STATE_CMD);
}
/* Set FIFO status for the host to read */
-static void fdctrl_set_fifo (int fifo_len, int do_irq)
+static void fdctrl_set_fifo (fdctrl_t *fdctrl, int fifo_len, int do_irq)
{
- fdctrl.data_dir = FD_DIR_READ;
- fdctrl.data_len = fifo_len;
- fdctrl.data_pos = 0;
- fdctrl.data_state = FD_STATE_STATUS;
+ fdctrl->data_dir = FD_DIR_READ;
+ fdctrl->data_len = fifo_len;
+ fdctrl->data_pos = 0;
+ FD_SET_STATE(fdctrl->data_state, FD_STATE_STATUS);
if (do_irq)
- fdctrl_raise_irq(0x00);
+ fdctrl_raise_irq(fdctrl, 0x00);
}
/* Set an error: unimplemented/unknown command */
-static void fdctrl_unimplemented (void)
+static void fdctrl_unimplemented (fdctrl_t *fdctrl)
{
#if 0
- fdrive_t *cur_drv, *drv0, *drv1;
-
- drv0 = &fdctrl.drives[fdctrl.bootsel];
- drv1 = &fdctrl.drives[1 - fdctrl.bootsel];
- cur_drv = fdctrl.cur_drv == 0 ? drv0 : drv1;
- fdctrl.fifo[0] = 0x60 | (cur_drv->head << 1) | fdctrl.cur_drv;
- fdctrl.fifo[1] = 0x00;
- fdctrl.fifo[2] = 0x00;
- fdctrl_set_fifo(3, 1);
+ fdrive_t *cur_drv;
+
+ cur_drv = get_cur_drv(fdctrl);
+ fdctrl->fifo[0] = 0x60 | (cur_drv->head << 2) | fdctrl->cur_drv;
+ fdctrl->fifo[1] = 0x00;
+ fdctrl->fifo[2] = 0x00;
+ fdctrl_set_fifo(fdctrl, 3, 1);
#else
- fdctrl_reset_fifo();
+ // fdctrl_reset_fifo(fdctrl);
+ fdctrl->fifo[0] = 0x80;
+ fdctrl_set_fifo(fdctrl, 1, 0);
#endif
}
/* Callback for transfer end (stop or abort) */
-static void fdctrl_stop_transfer (uint8_t status0, uint8_t status1,
- uint8_t status2)
+static void fdctrl_stop_transfer (fdctrl_t *fdctrl, uint8_t status0,
+ uint8_t status1, uint8_t status2)
{
- fdrive_t *cur_drv, *drv0, *drv1;
+ fdrive_t *cur_drv;
- drv0 = &fdctrl.drives[fdctrl.bootsel];
- drv1 = &fdctrl.drives[1 - fdctrl.bootsel];
- cur_drv = fdctrl.cur_drv == 0 ? drv0 : drv1;
+ cur_drv = get_cur_drv(fdctrl);
FLOPPY_DPRINTF("transfer status: %02x %02x %02x (%02x)\n",
status0, status1, status2,
- status0 | (cur_drv->head << 1) | fdctrl.cur_drv);
- fdctrl.fifo[0] = status0 | (cur_drv->head << 1) | fdctrl.cur_drv;
- fdctrl.fifo[1] = status1;
- fdctrl.fifo[2] = status2;
- fdctrl.fifo[3] = cur_drv->track;
- fdctrl.fifo[4] = cur_drv->head;
- fdctrl.fifo[5] = cur_drv->sect;
- fdctrl.fifo[6] = FD_SECTOR_SC;
- fdctrl.data_dir = FD_DIR_READ;
- if (fdctrl.state & FD_CTRL_BUSY)
- DMA_release_DREQ(fdctrl.dma_chann);
- fdctrl_set_fifo(7, 1);
+ status0 | (cur_drv->head << 2) | fdctrl->cur_drv);
+ fdctrl->fifo[0] = status0 | (cur_drv->head << 2) | fdctrl->cur_drv;
+ fdctrl->fifo[1] = status1;
+ fdctrl->fifo[2] = status2;
+ fdctrl->fifo[3] = cur_drv->track;
+ fdctrl->fifo[4] = cur_drv->head;
+ fdctrl->fifo[5] = cur_drv->sect;
+ fdctrl->fifo[6] = FD_SECTOR_SC;
+ fdctrl->data_dir = FD_DIR_READ;
+ if (fdctrl->state & FD_CTRL_BUSY) {
+ DMA_release_DREQ(fdctrl->dma_chann);
+ fdctrl->state &= ~FD_CTRL_BUSY;
+ }
+ fdctrl_set_fifo(fdctrl, 7, 1);
}
/* Prepare a data transfer (either DMA or FIFO) */
-static void fdctrl_start_transfer (int direction)
+static void fdctrl_start_transfer (fdctrl_t *fdctrl, int direction)
{
- fdrive_t *cur_drv, *drv0, *drv1;
+ fdrive_t *cur_drv;
uint8_t kh, kt, ks;
int did_seek;
- drv0 = &fdctrl.drives[fdctrl.bootsel];
- drv1 = &fdctrl.drives[1 - fdctrl.bootsel];
- fdctrl.cur_drv = fdctrl.fifo[1] & 1;
- cur_drv = fdctrl.cur_drv == 0 ? drv0 : drv1;
- kt = fdctrl.fifo[2];
- kh = fdctrl.fifo[3];
- ks = fdctrl.fifo[4];
- FLOPPY_DPRINTF("Start tranfert at %d %d %02x %02x (%d)\n",
- fdctrl.cur_drv, kh, kt, ks,
+ fdctrl->cur_drv = fdctrl->fifo[1] & 1;
+ cur_drv = get_cur_drv(fdctrl);
+ kt = fdctrl->fifo[2];
+ kh = fdctrl->fifo[3];
+ ks = fdctrl->fifo[4];
+ FLOPPY_DPRINTF("Start transfer at %d %d %02x %02x (%d)\n",
+ fdctrl->cur_drv, kh, kt, ks,
_fd_sector(kh, kt, ks, cur_drv->last_sect));
did_seek = 0;
- switch (fd_seek(cur_drv, kh, kt, ks, fdctrl.config & 0x40)) {
+ switch (fd_seek(cur_drv, kh, kt, ks, fdctrl->config & 0x40)) {
case 2:
/* sect too big */
- fdctrl_stop_transfer(0x40, 0x00, 0x00);
- fdctrl.fifo[3] = kt;
- fdctrl.fifo[4] = kh;
- fdctrl.fifo[5] = ks;
+ fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
+ fdctrl->fifo[3] = kt;
+ fdctrl->fifo[4] = kh;
+ fdctrl->fifo[5] = ks;
return;
case 3:
/* track too big */
- fdctrl_stop_transfer(0x40, 0x80, 0x00);
- fdctrl.fifo[3] = kt;
- fdctrl.fifo[4] = kh;
- fdctrl.fifo[5] = ks;
+ fdctrl_stop_transfer(fdctrl, 0x40, 0x80, 0x00);
+ fdctrl->fifo[3] = kt;
+ fdctrl->fifo[4] = kh;
+ fdctrl->fifo[5] = ks;
return;
case 4:
/* No seek enabled */
- fdctrl_stop_transfer(0x40, 0x00, 0x00);
- fdctrl.fifo[3] = kt;
- fdctrl.fifo[4] = kh;
- fdctrl.fifo[5] = ks;
+ fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
+ fdctrl->fifo[3] = kt;
+ fdctrl->fifo[4] = kh;
+ fdctrl->fifo[5] = ks;
return;
case 1:
did_seek = 1;
break;
}
/* Set the FIFO state */
- fdctrl.data_dir = direction;
- fdctrl.data_pos = 0;
- fdctrl.data_state = FD_STATE_DATA; /* FIFO ready for data */
- if (fdctrl.fifo[0] & 0x80)
- fdctrl.data_state |= FD_STATE_MULTI;
+ fdctrl->data_dir = direction;
+ fdctrl->data_pos = 0;
+ FD_SET_STATE(fdctrl->data_state, FD_STATE_DATA); /* FIFO ready for data */
+ if (fdctrl->fifo[0] & 0x80)
+ fdctrl->data_state |= FD_STATE_MULTI;
+ else
+ fdctrl->data_state &= ~FD_STATE_MULTI;
if (did_seek)
- fdctrl.data_state |= FD_STATE_SEEK;
- if (fdctrl.dma_en) {
+ fdctrl->data_state |= FD_STATE_SEEK;
+ else
+ fdctrl->data_state &= ~FD_STATE_SEEK;
+ if (fdctrl->fifo[5] == 00) {
+ fdctrl->data_len = fdctrl->fifo[8];
+ } else {
+ int tmp;
+ fdctrl->data_len = 128 << (fdctrl->fifo[5] > 7 ? 7 : fdctrl->fifo[5]);
+ tmp = (cur_drv->last_sect - ks + 1);
+ if (fdctrl->fifo[0] & 0x80)
+ tmp += cur_drv->last_sect;
+ fdctrl->data_len *= tmp;
+ }
+ fdctrl->eot = fdctrl->fifo[6];
+ if (fdctrl->dma_en) {
int dma_mode;
/* DMA transfer are enabled. Check if DMA channel is well programmed */
- dma_mode = DMA_get_channel_mode(fdctrl.dma_chann);
+ dma_mode = DMA_get_channel_mode(fdctrl->dma_chann);
dma_mode = (dma_mode >> 2) & 3;
- FLOPPY_DPRINTF("dma_mode=%d direction=%d (%d)\n", dma_mode, direction,
- (128 << fdctrl.fifo[5]) *
- (cur_drv->last_sect - ks + 1));
+ FLOPPY_DPRINTF("dma_mode=%d direction=%d (%d - %d)\n",
+ dma_mode, direction,
+ (128 << fdctrl->fifo[5]) *
+ (cur_drv->last_sect - ks + 1), fdctrl->data_len);
if (((direction == FD_DIR_SCANE || direction == FD_DIR_SCANL ||
direction == FD_DIR_SCANH) && dma_mode == 0) ||
(direction == FD_DIR_WRITE && dma_mode == 2) ||
(direction == FD_DIR_READ && dma_mode == 1)) {
/* No access is allowed until DMA transfer has completed */
- fdctrl.state |= FD_CTRL_BUSY;
- /* Now, we just have to wait for the DMA controler to
+ fdctrl->state |= FD_CTRL_BUSY;
+ /* Now, we just have to wait for the DMA controller to
* recall us...
*/
- DMA_hold_DREQ(fdctrl.dma_chann);
- DMA_schedule(fdctrl.dma_chann);
+ DMA_hold_DREQ(fdctrl->dma_chann);
+ DMA_schedule(fdctrl->dma_chann);
return;
+ } else {
+ FLOPPY_ERROR("dma_mode=%d direction=%d\n", dma_mode, direction);
}
}
FLOPPY_DPRINTF("start non-DMA transfer\n");
/* IO based transfer: calculate len */
- if (fdctrl.fifo[5] == 00) {
- fdctrl.data_len = fdctrl.fifo[8];
- } else {
- fdctrl.data_len = 128 << fdctrl.fifo[5];
- fdctrl.data_len *= (cur_drv->last_sect - ks + 1);
- if (fdctrl.fifo[0] & 0x80)
- fdctrl.data_len *= 2;
- }
- fdctrl_raise_irq(0x00);
+ fdctrl_raise_irq(fdctrl, 0x00);
return;
}
/* Prepare a transfer of deleted data */
-static void fdctrl_start_transfer_del (int direction)
+static void fdctrl_start_transfer_del (fdctrl_t *fdctrl, int direction)
{
/* We don't handle deleted data,
* so we don't return *ANYTHING*
*/
- fdctrl_stop_transfer(0x60, 0x00, 0x00);
+ fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
}
/* handlers for DMA transfers */
-/* XXX: the partial transfer logic seems to be broken */
-static int fdctrl_transfer_handler (void *opaque, target_ulong addr, int size)
+static int fdctrl_transfer_handler (void *opaque, int nchan,
+ int dma_pos, int dma_len)
{
- fdrive_t *cur_drv, *drv0, *drv1;
- int len;
+ fdctrl_t *fdctrl;
+ fdrive_t *cur_drv;
+ int len, start_pos, rel_pos;
uint8_t status0 = 0x00, status1 = 0x00, status2 = 0x00;
- uint8_t tmpbuf[FD_SECTOR_LEN];
- fdctrl_reset_irq();
- if (!(fdctrl.state & FD_CTRL_BUSY)) {
+ fdctrl = opaque;
+ if (!(fdctrl->state & FD_CTRL_BUSY)) {
FLOPPY_DPRINTF("Not in DMA transfer mode !\n");
return 0;
}
- drv0 = &fdctrl.drives[fdctrl.bootsel];
- drv1 = &fdctrl.drives[1 - fdctrl.bootsel];
- cur_drv = fdctrl.cur_drv == 0 ? drv0 : drv1;
- if (fdctrl.data_dir == FD_DIR_SCANE || fdctrl.data_dir == FD_DIR_SCANL ||
- fdctrl.data_dir == FD_DIR_SCANH)
+ cur_drv = get_cur_drv(fdctrl);
+ if (fdctrl->data_dir == FD_DIR_SCANE || fdctrl->data_dir == FD_DIR_SCANL ||
+ fdctrl->data_dir == FD_DIR_SCANH)
status2 = 0x04;
- for (fdctrl.data_len = size; fdctrl.data_pos < fdctrl.data_len;
- fdctrl.data_pos += len) {
- len = size - fdctrl.data_pos;
- if (len > FD_SECTOR_LEN)
- len = FD_SECTOR_LEN;
- FLOPPY_DPRINTF("copy %d bytes (%d %d %d) %d pos %d %02x %02x "
- "(%d-0x%08x)\n", len, size, fdctrl.data_pos,
- fdctrl.data_len, fdctrl.cur_drv, cur_drv->head,
+ if (dma_len > fdctrl->data_len)
+ dma_len = fdctrl->data_len;
+ if (cur_drv->bs == NULL) {
+ if (fdctrl->data_dir == FD_DIR_WRITE)
+ fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
+ else
+ fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
+ len = 0;
+ goto transfer_error;
+ }
+ rel_pos = fdctrl->data_pos % FD_SECTOR_LEN;
+ for (start_pos = fdctrl->data_pos; fdctrl->data_pos < dma_len;) {
+ len = dma_len - fdctrl->data_pos;
+ if (len + rel_pos > FD_SECTOR_LEN)
+ len = FD_SECTOR_LEN - rel_pos;
+ FLOPPY_DPRINTF("copy %d bytes (%d %d %d) %d pos %d %02x "
+ "(%d-0x%08x 0x%08x)\n", len, dma_len, fdctrl->data_pos,
+ fdctrl->data_len, fdctrl->cur_drv, cur_drv->head,
cur_drv->track, cur_drv->sect, fd_sector(cur_drv),
fd_sector(cur_drv) * 512);
- if (fdctrl.data_dir != FD_DIR_WRITE) {
- /* READ & SCAN commands */
- if (cur_drv->bs == NULL) {
- fdctrl_stop_transfer(0x40, 0x00, 0x00);
- goto transfer_error;
- }
- if (bdrv_read(cur_drv->bs, fd_sector(cur_drv), tmpbuf, 1) < 0) {
+ if (fdctrl->data_dir != FD_DIR_WRITE ||
+ len < FD_SECTOR_LEN || rel_pos != 0) {
+ /* READ & SCAN commands and realign to a sector for WRITE */
+ if (bdrv_read(cur_drv->bs, fd_sector(cur_drv),
+ fdctrl->fifo, 1) < 0) {
FLOPPY_DPRINTF("Floppy: error getting sector %d\n",
fd_sector(cur_drv));
/* Sure, image size is too small... */
- memset(tmpbuf, 0, FD_SECTOR_LEN);
+ memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
}
- if (fdctrl.data_dir == FD_DIR_READ) {
- cpu_physical_memory_write(addr + fdctrl.data_pos,
- tmpbuf, len);
- if (len < FD_SECTOR_LEN) {
- memcpy(&fdctrl.fifo[0], tmpbuf + len, FD_SECTOR_LEN - len);
- memset(&fdctrl.fifo[FD_SECTOR_LEN - len], 0, len);
- }
- } else {
+ }
+ switch (fdctrl->data_dir) {
+ case FD_DIR_READ:
+ /* READ commands */
+ DMA_write_memory (nchan, fdctrl->fifo + rel_pos,
+ fdctrl->data_pos, len);
+/* cpu_physical_memory_write(addr + fdctrl->data_pos, */
+/* fdctrl->fifo + rel_pos, len); */
+ break;
+ case FD_DIR_WRITE:
+ /* WRITE commands */
+ DMA_read_memory (nchan, fdctrl->fifo + rel_pos,
+ fdctrl->data_pos, len);
+/* cpu_physical_memory_read(addr + fdctrl->data_pos, */
+/* fdctrl->fifo + rel_pos, len); */
+ if (bdrv_write(cur_drv->bs, fd_sector(cur_drv),
+ fdctrl->fifo, 1) < 0) {
+ FLOPPY_ERROR("writting sector %d\n", fd_sector(cur_drv));
+ fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
+ goto transfer_error;
+ }
+ break;
+ default:
+ /* SCAN commands */
+ {
+ uint8_t tmpbuf[FD_SECTOR_LEN];
int ret;
- /* XXX: what to do if not enough data ? */
- cpu_physical_memory_read(addr + fdctrl.data_pos,
- fdctrl.fifo, len);
- if (len < FD_SECTOR_LEN) {
- memset(&fdctrl.fifo[len], 0, FD_SECTOR_LEN - len);
- }
- ret = memcmp(tmpbuf, fdctrl.fifo, FD_SECTOR_LEN);
+ DMA_read_memory (nchan, tmpbuf, fdctrl->data_pos, len);
+/* cpu_physical_memory_read(addr + fdctrl->data_pos, */
+/* tmpbuf, len); */
+ ret = memcmp(tmpbuf, fdctrl->fifo + rel_pos, len);
if (ret == 0) {
status2 = 0x08;
goto end_transfer;
}
- if ((ret < 0 && fdctrl.data_dir == FD_DIR_SCANL) ||
- (ret > 0 && fdctrl.data_dir == FD_DIR_SCANH)) {
+ if ((ret < 0 && fdctrl->data_dir == FD_DIR_SCANL) ||
+ (ret > 0 && fdctrl->data_dir == FD_DIR_SCANH)) {
status2 = 0x00;
goto end_transfer;
}
}
- } else {
- /* WRITE commands */
- cpu_physical_memory_read(addr + fdctrl.data_pos, tmpbuf, len);
- if (len < FD_SECTOR_LEN) {
- memset(tmpbuf + len, 0, FD_SECTOR_LEN - len);
- }
- if (cur_drv->bs == NULL ||
- bdrv_write(cur_drv->bs, fd_sector(cur_drv), tmpbuf, 1) < 0) {
- FLOPPY_ERROR("writting sector %d\n", fd_sector(cur_drv));
- fdctrl_stop_transfer(0x60, 0x00, 0x00);
- goto transfer_error;
- }
+ break;
}
- if (len == FD_SECTOR_LEN) {
+ fdctrl->data_pos += len;
+ rel_pos = fdctrl->data_pos % FD_SECTOR_LEN;
+ if (rel_pos == 0) {
/* Seek to next sector */
- if (cur_drv->sect == cur_drv->last_sect) {
- if (cur_drv->head == 0) {
- cur_drv->head = 1;
+ FLOPPY_DPRINTF("seek to next sector (%d %02x %02x => %d) (%d)\n",
+ cur_drv->head, cur_drv->track, cur_drv->sect,
+ fd_sector(cur_drv),
+ fdctrl->data_pos - len);
+ /* XXX: cur_drv->sect >= cur_drv->last_sect should be an
+ error in fact */
+ if (cur_drv->sect >= cur_drv->last_sect ||
+ cur_drv->sect == fdctrl->eot) {
+ cur_drv->sect = 1;
+ if (FD_MULTI_TRACK(fdctrl->data_state)) {
+ if (cur_drv->head == 0 &&
+ (cur_drv->flags & FDISK_DBL_SIDES) != 0) {
+ cur_drv->head = 1;
+ } else {
+ cur_drv->head = 0;
+ cur_drv->track++;
+ if ((cur_drv->flags & FDISK_DBL_SIDES) == 0)
+ break;
+ }
} else {
cur_drv->track++;
- cur_drv->head = 0;
- }
- cur_drv->sect = 1;
- FLOPPY_DPRINTF("seek to next sector (%d %02x %02x => %d)\n",
- cur_drv->head, cur_drv->track, cur_drv->sect,
- fd_sector(cur_drv));
- if (cur_drv->head == 0) {
- FLOPPY_DPRINTF("end transfer\n");
- goto end_transfer;
- }
- if (!FD_MULTI_TRACK(fdctrl.data_state)) {
- /* Single track read */
- FLOPPY_DPRINTF("single track transfert: end transfer\n");
-// status1 |= 0x80;
- goto end_transfer;
+ break;
}
+ FLOPPY_DPRINTF("seek to next track (%d %02x %02x => %d)\n",
+ cur_drv->head, cur_drv->track,
+ cur_drv->sect, fd_sector(cur_drv));
} else {
cur_drv->sect++;
- FLOPPY_DPRINTF("seek to next sector (%d %02x %02x => %d)\n",
- cur_drv->head, cur_drv->track, cur_drv->sect,
- fd_sector(cur_drv));
}
}
}
end_transfer:
- if (fdctrl.data_dir == FD_DIR_SCANE ||
- fdctrl.data_dir == FD_DIR_SCANL ||
- fdctrl.data_dir == FD_DIR_SCANH)
+ len = fdctrl->data_pos - start_pos;
+ FLOPPY_DPRINTF("end transfer %d %d %d\n",
+ fdctrl->data_pos, len, fdctrl->data_len);
+ if (fdctrl->data_dir == FD_DIR_SCANE ||
+ fdctrl->data_dir == FD_DIR_SCANL ||
+ fdctrl->data_dir == FD_DIR_SCANH)
status2 = 0x08;
- if (FD_DID_SEEK(fdctrl.data_state))
+ if (FD_DID_SEEK(fdctrl->data_state))
status0 |= 0x20;
- fdctrl_stop_transfer(status0, status1, status2);
+ fdctrl->data_len -= len;
+ // if (fdctrl->data_len == 0)
+ fdctrl_stop_transfer(fdctrl, status0, status1, status2);
transfer_error:
- return fdctrl.data_pos;
+ return len;
}
/* Data register : 0x05 */
-static uint32_t fdctrl_read_data (CPUState *env, uint32_t reg)
+static uint32_t fdctrl_read_data (fdctrl_t *fdctrl)
{
- fdrive_t *cur_drv, *drv0, *drv1;
+ fdrive_t *cur_drv;
uint32_t retval = 0;
int pos, len;
- fdctrl_reset_irq();
- drv0 = &fdctrl.drives[fdctrl.bootsel];
- drv1 = &fdctrl.drives[1 - fdctrl.bootsel];
- cur_drv = fdctrl.cur_drv == 0 ? drv0 : drv1;
- fdctrl.state &= ~FD_CTRL_SLEEP;
- if (FD_STATE(fdctrl.data_state) == FD_STATE_CMD) {
+ cur_drv = get_cur_drv(fdctrl);
+ fdctrl->state &= ~FD_CTRL_SLEEP;
+ if (FD_STATE(fdctrl->data_state) == FD_STATE_CMD) {
FLOPPY_ERROR("can't read data in CMD state\n");
return 0;
}
- pos = fdctrl.data_pos;
- if (FD_STATE(fdctrl.data_state) == FD_STATE_DATA) {
+ pos = fdctrl->data_pos;
+ if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA) {
pos %= FD_SECTOR_LEN;
if (pos == 0) {
- len = fdctrl.data_len - fdctrl.data_pos;
+ len = fdctrl->data_len - fdctrl->data_pos;
if (len > FD_SECTOR_LEN)
len = FD_SECTOR_LEN;
bdrv_read(cur_drv->bs, fd_sector(cur_drv),
- fdctrl.fifo, len);
+ fdctrl->fifo, len);
}
}
- retval = fdctrl.fifo[pos];
- if (++fdctrl.data_pos == fdctrl.data_len) {
- fdctrl.data_pos = 0;
- /* Switch from transfert mode to status mode
+ retval = fdctrl->fifo[pos];
+ if (++fdctrl->data_pos == fdctrl->data_len) {
+ fdctrl->data_pos = 0;
+ /* Switch from transfer mode to status mode
* then from status mode to command mode
*/
- if (FD_STATE(fdctrl.data_state) == FD_STATE_DATA)
- fdctrl_stop_transfer(0x20, 0x00, 0x00);
- else
- fdctrl_reset_fifo();
+ if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA) {
+ fdctrl_stop_transfer(fdctrl, 0x20, 0x00, 0x00);
+ } else {
+ fdctrl_reset_fifo(fdctrl);
+ fdctrl_reset_irq(fdctrl);
+ }
}
FLOPPY_DPRINTF("data register: 0x%02x\n", retval);
return retval;
}
-static void fdctrl_write_data (CPUState *env, uint32_t reg, uint32_t value)
+static void fdctrl_format_sector (fdctrl_t *fdctrl)
+{
+ fdrive_t *cur_drv;
+ uint8_t kh, kt, ks;
+ int did_seek;
+
+ fdctrl->cur_drv = fdctrl->fifo[1] & 1;
+ cur_drv = get_cur_drv(fdctrl);
+ kt = fdctrl->fifo[6];
+ kh = fdctrl->fifo[7];
+ ks = fdctrl->fifo[8];
+ FLOPPY_DPRINTF("format sector at %d %d %02x %02x (%d)\n",
+ fdctrl->cur_drv, kh, kt, ks,
+ _fd_sector(kh, kt, ks, cur_drv->last_sect));
+ did_seek = 0;
+ switch (fd_seek(cur_drv, kh, kt, ks, fdctrl->config & 0x40)) {
+ case 2:
+ /* sect too big */
+ fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
+ fdctrl->fifo[3] = kt;
+ fdctrl->fifo[4] = kh;
+ fdctrl->fifo[5] = ks;
+ return;
+ case 3:
+ /* track too big */
+ fdctrl_stop_transfer(fdctrl, 0x40, 0x80, 0x00);
+ fdctrl->fifo[3] = kt;
+ fdctrl->fifo[4] = kh;
+ fdctrl->fifo[5] = ks;
+ return;
+ case 4:
+ /* No seek enabled */
+ fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
+ fdctrl->fifo[3] = kt;
+ fdctrl->fifo[4] = kh;
+ fdctrl->fifo[5] = ks;
+ return;
+ case 1:
+ did_seek = 1;
+ fdctrl->data_state |= FD_STATE_SEEK;
+ break;
+ default:
+ break;
+ }
+ memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
+ if (cur_drv->bs == NULL ||
+ bdrv_write(cur_drv->bs, fd_sector(cur_drv), fdctrl->fifo, 1) < 0) {
+ FLOPPY_ERROR("formatting sector %d\n", fd_sector(cur_drv));
+ fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
+ } else {
+ if (cur_drv->sect == cur_drv->last_sect) {
+ fdctrl->data_state &= ~FD_STATE_FORMAT;
+ /* Last sector done */
+ if (FD_DID_SEEK(fdctrl->data_state))
+ fdctrl_stop_transfer(fdctrl, 0x20, 0x00, 0x00);
+ else
+ fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00);
+ } else {
+ /* More to do */
+ fdctrl->data_pos = 0;
+ fdctrl->data_len = 4;
+ }
+ }
+}
+
+static void fdctrl_write_data (fdctrl_t *fdctrl, uint32_t value)
{
- fdrive_t *cur_drv, *drv0, *drv1;
+ fdrive_t *cur_drv;
- fdctrl_reset_irq();
- drv0 = &fdctrl.drives[fdctrl.bootsel];
- drv1 = &fdctrl.drives[1 - fdctrl.bootsel];
- cur_drv = fdctrl.cur_drv == 0 ? drv0 : drv1;
+ cur_drv = get_cur_drv(fdctrl);
/* Reset mode */
- if (fdctrl.state & FD_CTRL_RESET) {
- FLOPPY_DPRINTF("Floppy controler in RESET state !\n");
+ if (fdctrl->state & FD_CTRL_RESET) {
+ FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
return;
}
- fdctrl.state &= ~FD_CTRL_SLEEP;
- if ((fdctrl.data_state & FD_STATE_STATE) == FD_STATE_STATUS) {
+ fdctrl->state &= ~FD_CTRL_SLEEP;
+ if (FD_STATE(fdctrl->data_state) == FD_STATE_STATUS) {
FLOPPY_ERROR("can't write data in status mode\n");
return;
}
/* Is it write command time ? */
- if (FD_STATE(fdctrl.data_state) == FD_STATE_DATA) {
+ if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA) {
/* FIFO data write */
- fdctrl.fifo[fdctrl.data_pos++] = value;
- if (fdctrl.data_pos % FD_SECTOR_LEN == (FD_SECTOR_LEN - 1) ||
- fdctrl.data_pos == fdctrl.data_len) {
+ fdctrl->fifo[fdctrl->data_pos++] = value;
+ if (fdctrl->data_pos % FD_SECTOR_LEN == (FD_SECTOR_LEN - 1) ||
+ fdctrl->data_pos == fdctrl->data_len) {
bdrv_write(cur_drv->bs, fd_sector(cur_drv),
- fdctrl.fifo, FD_SECTOR_LEN);
+ fdctrl->fifo, FD_SECTOR_LEN);
}
- /* Switch from transfert mode to status mode
+ /* Switch from transfer mode to status mode
* then from status mode to command mode
*/
- if (FD_STATE(fdctrl.data_state) == FD_STATE_DATA)
- fdctrl_stop_transfer(0x20, 0x00, 0x00);
+ if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA)
+ fdctrl_stop_transfer(fdctrl, 0x20, 0x00, 0x00);
return;
}
- if (fdctrl.data_pos == 0) {
+ if (fdctrl->data_pos == 0) {
/* Command */
switch (value & 0x5F) {
case 0x46:
/* READ variants */
FLOPPY_DPRINTF("READ command\n");
/* 8 parameters cmd */
- fdctrl.data_len = 9;
+ fdctrl->data_len = 9;
goto enqueue;
case 0x4C:
/* READ_DELETED variants */
FLOPPY_DPRINTF("READ_DELETED command\n");
/* 8 parameters cmd */
- fdctrl.data_len = 9;
+ fdctrl->data_len = 9;
goto enqueue;
case 0x50:
/* SCAN_EQUAL variants */
FLOPPY_DPRINTF("SCAN_EQUAL command\n");
/* 8 parameters cmd */
- fdctrl.data_len = 9;
+ fdctrl->data_len = 9;
goto enqueue;
case 0x56:
/* VERIFY variants */
FLOPPY_DPRINTF("VERIFY command\n");
/* 8 parameters cmd */
- fdctrl.data_len = 9;
+ fdctrl->data_len = 9;
goto enqueue;
case 0x59:
/* SCAN_LOW_OR_EQUAL variants */
FLOPPY_DPRINTF("SCAN_LOW_OR_EQUAL command\n");
/* 8 parameters cmd */
- fdctrl.data_len = 9;
+ fdctrl->data_len = 9;
goto enqueue;
case 0x5D:
/* SCAN_HIGH_OR_EQUAL variants */
FLOPPY_DPRINTF("SCAN_HIGH_OR_EQUAL command\n");
/* 8 parameters cmd */
- fdctrl.data_len = 9;
+ fdctrl->data_len = 9;
goto enqueue;
default:
break;
/* WRITE variants */
FLOPPY_DPRINTF("WRITE command\n");
/* 8 parameters cmd */
- fdctrl.data_len = 9;
+ fdctrl->data_len = 9;
goto enqueue;
case 0x49:
/* WRITE_DELETED variants */
FLOPPY_DPRINTF("WRITE_DELETED command\n");
/* 8 parameters cmd */
- fdctrl.data_len = 9;
+ fdctrl->data_len = 9;
goto enqueue;
default:
break;
/* SPECIFY */
FLOPPY_DPRINTF("SPECIFY command\n");
/* 1 parameter cmd */
- fdctrl.data_len = 3;
+ fdctrl->data_len = 3;
goto enqueue;
case 0x04:
/* SENSE_DRIVE_STATUS */
FLOPPY_DPRINTF("SENSE_DRIVE_STATUS command\n");
/* 1 parameter cmd */
- fdctrl.data_len = 2;
+ fdctrl->data_len = 2;
goto enqueue;
case 0x07:
/* RECALIBRATE */
FLOPPY_DPRINTF("RECALIBRATE command\n");
/* 1 parameter cmd */
- fdctrl.data_len = 2;
+ fdctrl->data_len = 2;
goto enqueue;
case 0x08:
/* SENSE_INTERRUPT_STATUS */
FLOPPY_DPRINTF("SENSE_INTERRUPT_STATUS command (%02x)\n",
- fdctrl.int_status);
+ fdctrl->int_status);
/* No parameters cmd: returns status if no interrupt */
- fdctrl.fifo[0] =
- fdctrl.int_status | (cur_drv->head << 2) | fdctrl.cur_drv;
- fdctrl.fifo[1] = cur_drv->track;
- fdctrl_set_fifo(2, 0);
+#if 0
+ fdctrl->fifo[0] =
+ fdctrl->int_status | (cur_drv->head << 2) | fdctrl->cur_drv;
+#else
+ /* XXX: int_status handling is broken for read/write
+ commands, so we do this hack. It should be suppressed
+ ASAP */
+ fdctrl->fifo[0] =
+ 0x20 | (cur_drv->head << 2) | fdctrl->cur_drv;
+#endif
+ fdctrl->fifo[1] = cur_drv->track;
+ fdctrl_set_fifo(fdctrl, 2, 0);
+ fdctrl_reset_irq(fdctrl);
+ fdctrl->int_status = 0xC0;
return;
case 0x0E:
/* DUMPREG */
FLOPPY_DPRINTF("DUMPREG command\n");
/* Drives position */
- fdctrl.fifo[0] = drv0->track;
- fdctrl.fifo[1] = drv1->track;
- fdctrl.fifo[2] = 0;
- fdctrl.fifo[3] = 0;
+ fdctrl->fifo[0] = drv0(fdctrl)->track;
+ fdctrl->fifo[1] = drv1(fdctrl)->track;
+ fdctrl->fifo[2] = 0;
+ fdctrl->fifo[3] = 0;
/* timers */
- fdctrl.fifo[4] = fdctrl.timer0;
- fdctrl.fifo[5] = (fdctrl.timer1 << 1) | fdctrl.dma_en;
- fdctrl.fifo[6] = cur_drv->last_sect;
- fdctrl.fifo[7] = (fdctrl.lock << 7) |
+ fdctrl->fifo[4] = fdctrl->timer0;
+ fdctrl->fifo[5] = (fdctrl->timer1 << 1) | fdctrl->dma_en;
+ fdctrl->fifo[6] = cur_drv->last_sect;
+ fdctrl->fifo[7] = (fdctrl->lock << 7) |
(cur_drv->perpendicular << 2);
- fdctrl.fifo[8] = fdctrl.config;
- fdctrl.fifo[9] = fdctrl.precomp_trk;
- fdctrl_set_fifo(10, 0);
+ fdctrl->fifo[8] = fdctrl->config;
+ fdctrl->fifo[9] = fdctrl->precomp_trk;
+ fdctrl_set_fifo(fdctrl, 10, 0);
return;
case 0x0F:
/* SEEK */
FLOPPY_DPRINTF("SEEK command\n");
/* 2 parameters cmd */
- fdctrl.data_len = 3;
+ fdctrl->data_len = 3;
goto enqueue;
case 0x10:
/* VERSION */
FLOPPY_DPRINTF("VERSION command\n");
/* No parameters cmd */
- /* Controler's version */
- fdctrl.fifo[0] = fdctrl.version;
- fdctrl_set_fifo(1, 1);
+ /* Controller's version */
+ fdctrl->fifo[0] = fdctrl->version;
+ fdctrl_set_fifo(fdctrl, 1, 1);
return;
case 0x12:
/* PERPENDICULAR_MODE */
FLOPPY_DPRINTF("PERPENDICULAR_MODE command\n");
/* 1 parameter cmd */
- fdctrl.data_len = 2;
+ fdctrl->data_len = 2;
goto enqueue;
case 0x13:
/* CONFIGURE */
FLOPPY_DPRINTF("CONFIGURE command\n");
/* 3 parameters cmd */
- fdctrl.data_len = 4;
+ fdctrl->data_len = 4;
goto enqueue;
case 0x14:
/* UNLOCK */
FLOPPY_DPRINTF("UNLOCK command\n");
/* No parameters cmd */
- fdctrl.lock = 0;
- fdctrl.fifo[0] = 0;
- fdctrl_set_fifo(1, 0);
+ fdctrl->lock = 0;
+ fdctrl->fifo[0] = 0;
+ fdctrl_set_fifo(fdctrl, 1, 0);
return;
case 0x17:
/* POWERDOWN_MODE */
FLOPPY_DPRINTF("POWERDOWN_MODE command\n");
/* 2 parameters cmd */
- fdctrl.data_len = 3;
+ fdctrl->data_len = 3;
goto enqueue;
case 0x18:
/* PART_ID */
FLOPPY_DPRINTF("PART_ID command\n");
/* No parameters cmd */
- fdctrl.fifo[0] = 0x41; /* Stepping 1 */
- fdctrl_set_fifo(1, 0);
+ fdctrl->fifo[0] = 0x41; /* Stepping 1 */
+ fdctrl_set_fifo(fdctrl, 1, 0);
return;
case 0x2C:
/* SAVE */
FLOPPY_DPRINTF("SAVE command\n");
/* No parameters cmd */
- fdctrl.fifo[0] = 0;
- fdctrl.fifo[1] = 0;
+ fdctrl->fifo[0] = 0;
+ fdctrl->fifo[1] = 0;
/* Drives position */
- fdctrl.fifo[2] = drv0->track;
- fdctrl.fifo[3] = drv1->track;
- fdctrl.fifo[4] = 0;
- fdctrl.fifo[5] = 0;
+ fdctrl->fifo[2] = drv0(fdctrl)->track;
+ fdctrl->fifo[3] = drv1(fdctrl)->track;
+ fdctrl->fifo[4] = 0;
+ fdctrl->fifo[5] = 0;
/* timers */
- fdctrl.fifo[6] = fdctrl.timer0;
- fdctrl.fifo[7] = fdctrl.timer1;
- fdctrl.fifo[8] = cur_drv->last_sect;
- fdctrl.fifo[9] = (fdctrl.lock << 7) |
+ fdctrl->fifo[6] = fdctrl->timer0;
+ fdctrl->fifo[7] = fdctrl->timer1;
+ fdctrl->fifo[8] = cur_drv->last_sect;
+ fdctrl->fifo[9] = (fdctrl->lock << 7) |
(cur_drv->perpendicular << 2);
- fdctrl.fifo[10] = fdctrl.config;
- fdctrl.fifo[11] = fdctrl.precomp_trk;
- fdctrl.fifo[12] = fdctrl.pwrd;
- fdctrl.fifo[13] = 0;
- fdctrl.fifo[14] = 0;
- fdctrl_set_fifo(15, 1);
+ fdctrl->fifo[10] = fdctrl->config;
+ fdctrl->fifo[11] = fdctrl->precomp_trk;
+ fdctrl->fifo[12] = fdctrl->pwrd;
+ fdctrl->fifo[13] = 0;
+ fdctrl->fifo[14] = 0;
+ fdctrl_set_fifo(fdctrl, 15, 1);
return;
case 0x33:
/* OPTION */
FLOPPY_DPRINTF("OPTION command\n");
/* 1 parameter cmd */
- fdctrl.data_len = 2;
+ fdctrl->data_len = 2;
goto enqueue;
case 0x42:
/* READ_TRACK */
FLOPPY_DPRINTF("READ_TRACK command\n");
/* 8 parameters cmd */
- fdctrl.data_len = 9;
+ fdctrl->data_len = 9;
goto enqueue;
case 0x4A:
/* READ_ID */
FLOPPY_DPRINTF("READ_ID command\n");
/* 1 parameter cmd */
- fdctrl.data_len = 2;
+ fdctrl->data_len = 2;
goto enqueue;
case 0x4C:
/* RESTORE */
FLOPPY_DPRINTF("RESTORE command\n");
/* 17 parameters cmd */
- fdctrl.data_len = 18;
+ fdctrl->data_len = 18;
goto enqueue;
case 0x4D:
/* FORMAT_TRACK */
FLOPPY_DPRINTF("FORMAT_TRACK command\n");
/* 5 parameters cmd */
- fdctrl.data_len = 9;
+ fdctrl->data_len = 6;
goto enqueue;
case 0x8E:
/* DRIVE_SPECIFICATION_COMMAND */
FLOPPY_DPRINTF("DRIVE_SPECIFICATION_COMMAND command\n");
/* 5 parameters cmd */
- fdctrl.data_len = 6;
+ fdctrl->data_len = 6;
goto enqueue;
case 0x8F:
/* RELATIVE_SEEK_OUT */
FLOPPY_DPRINTF("RELATIVE_SEEK_OUT command\n");
/* 2 parameters cmd */
- fdctrl.data_len = 3;
+ fdctrl->data_len = 3;
goto enqueue;
case 0x94:
/* LOCK */
FLOPPY_DPRINTF("LOCK command\n");
/* No parameters cmd */
- fdctrl.lock = 1;
- fdctrl.fifo[0] = 0x10;
- fdctrl_set_fifo(1, 1);
+ fdctrl->lock = 1;
+ fdctrl->fifo[0] = 0x10;
+ fdctrl_set_fifo(fdctrl, 1, 1);
return;
case 0xCD:
/* FORMAT_AND_WRITE */
FLOPPY_DPRINTF("FORMAT_AND_WRITE command\n");
/* 10 parameters cmd */
- fdctrl.data_len = 11;
+ fdctrl->data_len = 11;
goto enqueue;
case 0xCF:
/* RELATIVE_SEEK_IN */
FLOPPY_DPRINTF("RELATIVE_SEEK_IN command\n");
/* 2 parameters cmd */
- fdctrl.data_len = 3;
+ fdctrl->data_len = 3;
goto enqueue;
default:
/* Unknown command */
FLOPPY_ERROR("unknown command: 0x%02x\n", value);
- fdctrl_unimplemented();
+ fdctrl_unimplemented(fdctrl);
return;
}
}
enqueue:
- fdctrl.fifo[fdctrl.data_pos] = value;
- if (++fdctrl.data_pos == fdctrl.data_len) {
+ FLOPPY_DPRINTF("%s: %02x\n", __func__, value);
+ fdctrl->fifo[fdctrl->data_pos] = value;
+ if (++fdctrl->data_pos == fdctrl->data_len) {
/* We now have all parameters
* and will be able to treat the command
*/
- switch (fdctrl.fifo[0] & 0x1F) {
+ if (fdctrl->data_state & FD_STATE_FORMAT) {
+ fdctrl_format_sector(fdctrl);
+ return;
+ }
+ switch (fdctrl->fifo[0] & 0x1F) {
case 0x06:
{
/* READ variants */
FLOPPY_DPRINTF("treat READ command\n");
- fdctrl_start_transfer(FD_DIR_READ);
+ fdctrl_start_transfer(fdctrl, FD_DIR_READ);
return;
}
case 0x0C:
/* READ_DELETED variants */
// FLOPPY_DPRINTF("treat READ_DELETED command\n");
FLOPPY_ERROR("treat READ_DELETED command\n");
- fdctrl_start_transfer_del(1);
+ fdctrl_start_transfer_del(fdctrl, FD_DIR_READ);
return;
case 0x16:
/* VERIFY variants */
// FLOPPY_DPRINTF("treat VERIFY command\n");
FLOPPY_ERROR("treat VERIFY command\n");
- fdctrl_stop_transfer(0x20, 0x00, 0x00);
+ fdctrl_stop_transfer(fdctrl, 0x20, 0x00, 0x00);
return;
case 0x10:
/* SCAN_EQUAL variants */
// FLOPPY_DPRINTF("treat SCAN_EQUAL command\n");
FLOPPY_ERROR("treat SCAN_EQUAL command\n");
- fdctrl_start_transfer(FD_DIR_SCANE);
+ fdctrl_start_transfer(fdctrl, FD_DIR_SCANE);
return;
case 0x19:
/* SCAN_LOW_OR_EQUAL variants */
// FLOPPY_DPRINTF("treat SCAN_LOW_OR_EQUAL command\n");
FLOPPY_ERROR("treat SCAN_LOW_OR_EQUAL command\n");
- fdctrl_start_transfer(FD_DIR_SCANL);
+ fdctrl_start_transfer(fdctrl, FD_DIR_SCANL);
return;
case 0x1D:
/* SCAN_HIGH_OR_EQUAL variants */
// FLOPPY_DPRINTF("treat SCAN_HIGH_OR_EQUAL command\n");
FLOPPY_ERROR("treat SCAN_HIGH_OR_EQUAL command\n");
- fdctrl_start_transfer(FD_DIR_SCANH);
+ fdctrl_start_transfer(fdctrl, FD_DIR_SCANH);
return;
default:
break;
}
- switch (fdctrl.fifo[0] & 0x3F) {
+ switch (fdctrl->fifo[0] & 0x3F) {
case 0x05:
/* WRITE variants */
- FLOPPY_DPRINTF("treat WRITE command (%02x)\n", fdctrl.fifo[0]);
- fdctrl_start_transfer(FD_DIR_WRITE);
+ FLOPPY_DPRINTF("treat WRITE command (%02x)\n", fdctrl->fifo[0]);
+ fdctrl_start_transfer(fdctrl, FD_DIR_WRITE);
return;
case 0x09:
/* WRITE_DELETED variants */
// FLOPPY_DPRINTF("treat WRITE_DELETED command\n");
FLOPPY_ERROR("treat WRITE_DELETED command\n");
- fdctrl_start_transfer_del(FD_DIR_WRITE);
+ fdctrl_start_transfer_del(fdctrl, FD_DIR_WRITE);
return;
default:
break;
}
- switch (fdctrl.fifo[0]) {
+ switch (fdctrl->fifo[0]) {
case 0x03:
/* SPECIFY */
FLOPPY_DPRINTF("treat SPECIFY command\n");
- fdctrl.timer0 = (fdctrl.fifo[1] >> 4) & 0xF;
- fdctrl.timer1 = fdctrl.fifo[1] >> 1;
+ fdctrl->timer0 = (fdctrl->fifo[1] >> 4) & 0xF;
+ fdctrl->timer1 = fdctrl->fifo[2] >> 1;
+ fdctrl->dma_en = 1 - (fdctrl->fifo[2] & 1) ;
/* No result back */
- fdctrl_reset_fifo();
+ fdctrl_reset_fifo(fdctrl);
break;
case 0x04:
/* SENSE_DRIVE_STATUS */
FLOPPY_DPRINTF("treat SENSE_DRIVE_STATUS command\n");
- fdctrl.cur_drv = fdctrl.fifo[1] & 1;
- cur_drv = fdctrl.cur_drv == 0 ? drv0 : drv1;
- cur_drv->head = (fdctrl.fifo[1] >> 2) & 1;
+ fdctrl->cur_drv = fdctrl->fifo[1] & 1;
+ cur_drv = get_cur_drv(fdctrl);
+ cur_drv->head = (fdctrl->fifo[1] >> 2) & 1;
/* 1 Byte status back */
- fdctrl.fifo[0] = (cur_drv->ro << 6) |
+ fdctrl->fifo[0] = (cur_drv->ro << 6) |
(cur_drv->track == 0 ? 0x10 : 0x00) |
- fdctrl.cur_drv;
- fdctrl_set_fifo(1, 0);
+ (cur_drv->head << 2) |
+ fdctrl->cur_drv |
+ 0x28;
+ fdctrl_set_fifo(fdctrl, 1, 0);
break;
case 0x07:
/* RECALIBRATE */
FLOPPY_DPRINTF("treat RECALIBRATE command\n");
- fdctrl.cur_drv = fdctrl.fifo[1] & 1;
- cur_drv = fdctrl.cur_drv == 0 ? drv0 : drv1;
+ fdctrl->cur_drv = fdctrl->fifo[1] & 1;
+ cur_drv = get_cur_drv(fdctrl);
fd_recalibrate(cur_drv);
- fdctrl_reset_fifo();
+ fdctrl_reset_fifo(fdctrl);
/* Raise Interrupt */
- fdctrl_raise_irq(0x20);
+ fdctrl_raise_irq(fdctrl, 0x20);
break;
case 0x0F:
/* SEEK */
FLOPPY_DPRINTF("treat SEEK command\n");
- fdctrl.cur_drv = fdctrl.fifo[1] & 1;
- cur_drv = fdctrl.cur_drv == 0 ? drv0 : drv1;
- if (fdctrl.fifo[2] <= cur_drv->track)
+ fdctrl->cur_drv = fdctrl->fifo[1] & 1;
+ cur_drv = get_cur_drv(fdctrl);
+ fd_start(cur_drv);
+ if (fdctrl->fifo[2] <= cur_drv->track)
cur_drv->dir = 1;
else
cur_drv->dir = 0;
- cur_drv->head = (fdctrl.fifo[1] >> 2) & 1;
- if (fdctrl.fifo[2] > cur_drv->max_track) {
- fdctrl_raise_irq(0x60);
+ fdctrl_reset_fifo(fdctrl);
+ if (fdctrl->fifo[2] > cur_drv->max_track) {
+ fdctrl_raise_irq(fdctrl, 0x60);
} else {
- cur_drv->track = fdctrl.fifo[2];
- fdctrl_reset_fifo();
+ cur_drv->track = fdctrl->fifo[2];
/* Raise Interrupt */
- fdctrl_raise_irq(0x20);
+ fdctrl_raise_irq(fdctrl, 0x20);
}
break;
case 0x12:
/* PERPENDICULAR_MODE */
FLOPPY_DPRINTF("treat PERPENDICULAR_MODE command\n");
- if (fdctrl.fifo[1] & 0x80)
- cur_drv->perpendicular = fdctrl.fifo[1] & 0x7;
+ if (fdctrl->fifo[1] & 0x80)
+ cur_drv->perpendicular = fdctrl->fifo[1] & 0x7;
/* No result back */
- fdctrl_reset_fifo();
+ fdctrl_reset_fifo(fdctrl);
break;
case 0x13:
/* CONFIGURE */
FLOPPY_DPRINTF("treat CONFIGURE command\n");
- fdctrl.config = fdctrl.fifo[2];
- fdctrl.precomp_trk = fdctrl.fifo[3];
+ fdctrl->config = fdctrl->fifo[2];
+ fdctrl->precomp_trk = fdctrl->fifo[3];
/* No result back */
- fdctrl_reset_fifo();
+ fdctrl_reset_fifo(fdctrl);
break;
case 0x17:
/* POWERDOWN_MODE */
FLOPPY_DPRINTF("treat POWERDOWN_MODE command\n");
- fdctrl.pwrd = fdctrl.fifo[1];
- fdctrl.fifo[0] = fdctrl.fifo[1];
- fdctrl_set_fifo(1, 1);
+ fdctrl->pwrd = fdctrl->fifo[1];
+ fdctrl->fifo[0] = fdctrl->fifo[1];
+ fdctrl_set_fifo(fdctrl, 1, 1);
break;
case 0x33:
/* OPTION */
FLOPPY_DPRINTF("treat OPTION command\n");
/* No result back */
- fdctrl_reset_fifo();
+ fdctrl_reset_fifo(fdctrl);
break;
case 0x42:
/* READ_TRACK */
// FLOPPY_DPRINTF("treat READ_TRACK command\n");
FLOPPY_ERROR("treat READ_TRACK command\n");
- fdctrl_unimplemented();
+ fdctrl_start_transfer(fdctrl, FD_DIR_READ);
break;
case 0x4A:
/* READ_ID */
-// FLOPPY_DPRINTF("treat READ_ID command\n");
- FLOPPY_ERROR("treat READ_ID command\n");
- fdctrl_stop_transfer(0x00, 0x00, 0x00);
+ FLOPPY_DPRINTF("treat READ_ID command\n");
+ /* XXX: should set main status register to busy */
+ cur_drv->head = (fdctrl->fifo[1] >> 2) & 1;
+ qemu_mod_timer(fdctrl->result_timer,
+ qemu_get_clock(vm_clock) + (ticks_per_sec / 50));
break;
case 0x4C:
/* RESTORE */
FLOPPY_DPRINTF("treat RESTORE command\n");
/* Drives position */
- drv0->track = fdctrl.fifo[3];
- drv1->track = fdctrl.fifo[4];
+ drv0(fdctrl)->track = fdctrl->fifo[3];
+ drv1(fdctrl)->track = fdctrl->fifo[4];
/* timers */
- fdctrl.timer0 = fdctrl.fifo[7];
- fdctrl.timer1 = fdctrl.fifo[8];
- cur_drv->last_sect = fdctrl.fifo[9];
- fdctrl.lock = fdctrl.fifo[10] >> 7;
- cur_drv->perpendicular = (fdctrl.fifo[10] >> 2) & 0xF;
- fdctrl.config = fdctrl.fifo[11];
- fdctrl.precomp_trk = fdctrl.fifo[12];
- fdctrl.pwrd = fdctrl.fifo[13];
- fdctrl_reset_fifo();
+ fdctrl->timer0 = fdctrl->fifo[7];
+ fdctrl->timer1 = fdctrl->fifo[8];
+ cur_drv->last_sect = fdctrl->fifo[9];
+ fdctrl->lock = fdctrl->fifo[10] >> 7;
+ cur_drv->perpendicular = (fdctrl->fifo[10] >> 2) & 0xF;
+ fdctrl->config = fdctrl->fifo[11];
+ fdctrl->precomp_trk = fdctrl->fifo[12];
+ fdctrl->pwrd = fdctrl->fifo[13];
+ fdctrl_reset_fifo(fdctrl);
break;
case 0x4D:
/* FORMAT_TRACK */
-// FLOPPY_DPRINTF("treat FORMAT_TRACK command\n");
- FLOPPY_ERROR("treat FORMAT_TRACK command\n");
- fdctrl_unimplemented();
+ FLOPPY_DPRINTF("treat FORMAT_TRACK command\n");
+ fdctrl->cur_drv = fdctrl->fifo[1] & 1;
+ cur_drv = get_cur_drv(fdctrl);
+ fdctrl->data_state |= FD_STATE_FORMAT;
+ if (fdctrl->fifo[0] & 0x80)
+ fdctrl->data_state |= FD_STATE_MULTI;
+ else
+ fdctrl->data_state &= ~FD_STATE_MULTI;
+ fdctrl->data_state &= ~FD_STATE_SEEK;
+ cur_drv->bps =
+ fdctrl->fifo[2] > 7 ? 16384 : 128 << fdctrl->fifo[2];
+#if 0
+ cur_drv->last_sect =
+ cur_drv->flags & FDISK_DBL_SIDES ? fdctrl->fifo[3] :
+ fdctrl->fifo[3] / 2;
+#else
+ cur_drv->last_sect = fdctrl->fifo[3];
+#endif
+ /* TODO: implement format using DMA expected by the Bochs BIOS
+ * and Linux fdformat (read 3 bytes per sector via DMA and fill
+ * the sector with the specified fill byte
+ */
+ fdctrl->data_state &= ~FD_STATE_FORMAT;
+ fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00);
break;
case 0x8E:
/* DRIVE_SPECIFICATION_COMMAND */
FLOPPY_DPRINTF("treat DRIVE_SPECIFICATION_COMMAND command\n");
- if (fdctrl.fifo[fdctrl.data_pos - 1] & 0x80) {
+ if (fdctrl->fifo[fdctrl->data_pos - 1] & 0x80) {
/* Command parameters done */
- if (fdctrl.fifo[fdctrl.data_pos - 1] & 0x40) {
- fdctrl.fifo[0] = fdctrl.fifo[1];
- fdctrl.fifo[2] = 0;
- fdctrl.fifo[3] = 0;
- fdctrl_set_fifo(4, 1);
+ if (fdctrl->fifo[fdctrl->data_pos - 1] & 0x40) {
+ fdctrl->fifo[0] = fdctrl->fifo[1];
+ fdctrl->fifo[2] = 0;
+ fdctrl->fifo[3] = 0;
+ fdctrl_set_fifo(fdctrl, 4, 1);
} else {
- fdctrl_reset_fifo();
+ fdctrl_reset_fifo(fdctrl);
}
- } else if (fdctrl.data_len > 7) {
+ } else if (fdctrl->data_len > 7) {
/* ERROR */
- fdctrl.fifo[0] = 0x80 |
- (cur_drv->head << 2) | fdctrl.cur_drv;
- fdctrl_set_fifo(1, 1);
+ fdctrl->fifo[0] = 0x80 |
+ (cur_drv->head << 2) | fdctrl->cur_drv;
+ fdctrl_set_fifo(fdctrl, 1, 1);
}
break;
case 0x8F:
/* RELATIVE_SEEK_OUT */
FLOPPY_DPRINTF("treat RELATIVE_SEEK_OUT command\n");
- fdctrl.cur_drv = fdctrl.fifo[1] & 1;
- cur_drv = fdctrl.cur_drv == 0 ? drv0 : drv1;
- cur_drv->head = (fdctrl.fifo[1] >> 2) & 1;
- if (fdctrl.fifo[2] + cur_drv->track > cur_drv->max_track) {
- /* ERROR */
- fdctrl_raise_irq(0x70);
- } else {
- cur_drv->track += fdctrl.fifo[2];
+ fdctrl->cur_drv = fdctrl->fifo[1] & 1;
+ cur_drv = get_cur_drv(fdctrl);
+ fd_start(cur_drv);
cur_drv->dir = 0;
- fdctrl_reset_fifo();
- fdctrl_raise_irq(0x20);
+ if (fdctrl->fifo[2] + cur_drv->track >= cur_drv->max_track) {
+ cur_drv->track = cur_drv->max_track - 1;
+ } else {
+ cur_drv->track += fdctrl->fifo[2];
}
+ fdctrl_reset_fifo(fdctrl);
+ fdctrl_raise_irq(fdctrl, 0x20);
break;
case 0xCD:
/* FORMAT_AND_WRITE */
// FLOPPY_DPRINTF("treat FORMAT_AND_WRITE command\n");
FLOPPY_ERROR("treat FORMAT_AND_WRITE command\n");
- fdctrl_unimplemented();
+ fdctrl_unimplemented(fdctrl);
break;
case 0xCF:
/* RELATIVE_SEEK_IN */
FLOPPY_DPRINTF("treat RELATIVE_SEEK_IN command\n");
- fdctrl.cur_drv = fdctrl.fifo[1] & 1;
- cur_drv = fdctrl.cur_drv == 0 ? drv0 : drv1;
- cur_drv->head = (fdctrl.fifo[1] >> 2) & 1;
- if (fdctrl.fifo[2] > cur_drv->track) {
- /* ERROR */
- fdctrl_raise_irq(0x60);
- } else {
- fdctrl_reset_fifo();
- cur_drv->track -= fdctrl.fifo[2];
+ fdctrl->cur_drv = fdctrl->fifo[1] & 1;
+ cur_drv = get_cur_drv(fdctrl);
+ fd_start(cur_drv);
cur_drv->dir = 1;
- /* Raise Interrupt */
- fdctrl_raise_irq(0x20);
+ if (fdctrl->fifo[2] > cur_drv->track) {
+ cur_drv->track = 0;
+ } else {
+ cur_drv->track -= fdctrl->fifo[2];
}
+ fdctrl_reset_fifo(fdctrl);
+ /* Raise Interrupt */
+ fdctrl_raise_irq(fdctrl, 0x20);
break;
}
}
}
+
+static void fdctrl_result_timer(void *opaque)
+{
+ fdctrl_t *fdctrl = opaque;
+ fdrive_t *cur_drv = get_cur_drv(fdctrl);
+ /* Pretend we are spinning.
+ * This is needed for Coherent, which uses READ ID to check for
+ * sector interleaving.
+ */
+ if (cur_drv->last_sect != 0) {
+ cur_drv->sect = (cur_drv->sect % cur_drv->last_sect) + 1;
+ }
+ fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00);
+}
projects / qemu / blobdiff