mirror of https://github.com/xemu-project/xemu.git
No functional changes: remove dead code and fix indentation & wrapping lines.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3535 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
j_mayer
parent
d8f699cb32
commit
4f43196097
395
hw/fdc.c
395
hw/fdc.c
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@ -106,7 +106,7 @@ static void fd_init (fdrive_t *drv, BlockDriverState *bs)
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}
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static int _fd_sector (uint8_t head, uint8_t track,
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uint8_t sect, uint8_t last_sect)
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uint8_t sect, uint8_t last_sect)
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{
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return (((track * 2) + head) * last_sect) + sect - 1;
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}
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@ -124,7 +124,7 @@ static int fd_seek (fdrive_t *drv, uint8_t head, uint8_t track, uint8_t sect,
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int ret;
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if (track > drv->max_track ||
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(head != 0 && (drv->flags & FDISK_DBL_SIDES) == 0)) {
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(head != 0 && (drv->flags & FDISK_DBL_SIDES) == 0)) {
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FLOPPY_DPRINTF("try to read %d %02x %02x (max=%d %d %02x %02x)\n",
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head, track, sect, 1,
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(drv->flags & FDISK_DBL_SIDES) == 0 ? 0 : 1,
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@ -149,8 +149,8 @@ static int fd_seek (fdrive_t *drv, uint8_t head, uint8_t track, uint8_t sect,
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}
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#endif
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drv->head = head;
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if (drv->track != track)
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ret = 1;
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if (drv->track != track)
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ret = 1;
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drv->track = track;
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drv->sect = sect;
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}
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@ -236,58 +236,58 @@ static void fd_revalidate (fdrive_t *drv)
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FLOPPY_DPRINTF("revalidate\n");
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if (drv->bs != NULL && bdrv_is_inserted(drv->bs)) {
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ro = bdrv_is_read_only(drv->bs);
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bdrv_get_geometry_hint(drv->bs, &nb_heads, &max_track, &last_sect);
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if (nb_heads != 0 && max_track != 0 && last_sect != 0) {
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FLOPPY_DPRINTF("User defined disk (%d %d %d)",
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ro = bdrv_is_read_only(drv->bs);
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bdrv_get_geometry_hint(drv->bs, &nb_heads, &max_track, &last_sect);
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if (nb_heads != 0 && max_track != 0 && last_sect != 0) {
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FLOPPY_DPRINTF("User defined disk (%d %d %d)",
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nb_heads - 1, max_track, last_sect);
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} else {
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bdrv_get_geometry(drv->bs, &nb_sectors);
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match = -1;
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first_match = -1;
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for (i = 0;; i++) {
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parse = &fd_formats[i];
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if (parse->drive == FDRIVE_DRV_NONE)
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break;
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if (drv->drive == parse->drive ||
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drv->drive == FDRIVE_DRV_NONE) {
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size = (parse->max_head + 1) * parse->max_track *
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parse->last_sect;
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if (nb_sectors == size) {
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match = i;
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break;
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}
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if (first_match == -1)
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first_match = i;
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}
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}
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if (match == -1) {
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if (first_match == -1)
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match = 1;
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else
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match = first_match;
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parse = &fd_formats[match];
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}
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nb_heads = parse->max_head + 1;
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max_track = parse->max_track;
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last_sect = parse->last_sect;
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drv->drive = parse->drive;
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FLOPPY_DPRINTF("%s floppy disk (%d h %d t %d s) %s\n", parse->str,
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} else {
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bdrv_get_geometry(drv->bs, &nb_sectors);
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match = -1;
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first_match = -1;
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for (i = 0;; i++) {
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parse = &fd_formats[i];
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if (parse->drive == FDRIVE_DRV_NONE)
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break;
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if (drv->drive == parse->drive ||
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drv->drive == FDRIVE_DRV_NONE) {
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size = (parse->max_head + 1) * parse->max_track *
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parse->last_sect;
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if (nb_sectors == size) {
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match = i;
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break;
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}
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if (first_match == -1)
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first_match = i;
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}
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}
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if (match == -1) {
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if (first_match == -1)
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match = 1;
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else
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match = first_match;
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parse = &fd_formats[match];
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}
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nb_heads = parse->max_head + 1;
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max_track = parse->max_track;
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last_sect = parse->last_sect;
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drv->drive = parse->drive;
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FLOPPY_DPRINTF("%s floppy disk (%d h %d t %d s) %s\n", parse->str,
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nb_heads, max_track, last_sect, ro ? "ro" : "rw");
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}
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if (nb_heads == 1) {
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drv->flags &= ~FDISK_DBL_SIDES;
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} else {
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drv->flags |= FDISK_DBL_SIDES;
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}
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drv->max_track = max_track;
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drv->last_sect = last_sect;
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drv->ro = ro;
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}
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if (nb_heads == 1) {
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drv->flags &= ~FDISK_DBL_SIDES;
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} else {
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drv->flags |= FDISK_DBL_SIDES;
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}
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drv->max_track = max_track;
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drv->last_sect = last_sect;
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drv->ro = ro;
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} else {
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FLOPPY_DPRINTF("No disk in drive\n");
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FLOPPY_DPRINTF("No disk in drive\n");
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drv->last_sect = 0;
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drv->max_track = 0;
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drv->flags &= ~FDISK_DBL_SIDES;
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drv->max_track = 0;
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drv->flags &= ~FDISK_DBL_SIDES;
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}
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}
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@ -414,28 +414,28 @@ static uint32_t fdctrl_read (void *opaque, uint32_t reg)
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} else {
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retval = (uint32_t)(-1);
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}
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break;
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break;
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case 0x01:
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retval = fdctrl_read_statusB(fdctrl);
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break;
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retval = fdctrl_read_statusB(fdctrl);
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break;
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case 0x02:
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retval = fdctrl_read_dor(fdctrl);
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break;
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retval = fdctrl_read_dor(fdctrl);
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break;
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case 0x03:
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retval = fdctrl_read_tape(fdctrl);
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break;
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break;
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case 0x04:
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retval = fdctrl_read_main_status(fdctrl);
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break;
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break;
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case 0x05:
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retval = fdctrl_read_data(fdctrl);
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break;
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break;
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case 0x07:
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retval = fdctrl_read_dir(fdctrl);
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break;
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break;
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default:
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retval = (uint32_t)(-1);
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break;
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retval = (uint32_t)(-1);
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break;
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}
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FLOPPY_DPRINTF("read reg%d: 0x%02x\n", reg & 7, retval);
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@ -450,19 +450,19 @@ static void fdctrl_write (void *opaque, uint32_t reg, uint32_t value)
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switch (reg & 0x07) {
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case 0x02:
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fdctrl_write_dor(fdctrl, value);
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break;
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fdctrl_write_dor(fdctrl, value);
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break;
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case 0x03:
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fdctrl_write_tape(fdctrl, value);
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break;
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break;
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case 0x04:
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fdctrl_write_rate(fdctrl, value);
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break;
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break;
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case 0x05:
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fdctrl_write_data(fdctrl, value);
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break;
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break;
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default:
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break;
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break;
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}
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}
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@ -615,7 +615,8 @@ fdctrl_t *fdctrl_init (qemu_irq irq, int dma_chann, int mem_mapped,
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fdctrl_reset(fdctrl, 0);
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fdctrl->state = FD_CTRL_ACTIVE;
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if (mem_mapped) {
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io_mem = cpu_register_io_memory(0, fdctrl_mem_read, fdctrl_mem_write, fdctrl);
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io_mem = cpu_register_io_memory(0, fdctrl_mem_read, fdctrl_mem_write,
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fdctrl);
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cpu_register_physical_memory(io_base, 0x08, io_mem);
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} else {
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register_ioport_read((uint32_t)io_base + 0x01, 5, 1, &fdctrl_read,
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@ -665,9 +666,9 @@ static void fdctrl_raise_irq (fdctrl_t *fdctrl, uint8_t status)
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{
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// Sparc mutation
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if (fdctrl->sun4m && !fdctrl->dma_en) {
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fdctrl->state &= ~FD_CTRL_BUSY;
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fdctrl->int_status = status;
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return;
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fdctrl->state &= ~FD_CTRL_BUSY;
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fdctrl->int_status = status;
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return;
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}
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if (~(fdctrl->state & FD_CTRL_INTR)) {
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qemu_set_irq(fdctrl->irq, 1);
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@ -727,9 +728,9 @@ static uint32_t fdctrl_read_dor (fdctrl_t *fdctrl)
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/* Drive motors state indicators */
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if (drv0(fdctrl)->drflags & FDRIVE_MOTOR_ON)
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retval |= 1 << 5;
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retval |= 1 << 5;
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if (drv1(fdctrl)->drflags & FDRIVE_MOTOR_ON)
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retval |= 1 << 4;
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retval |= 1 << 4;
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/* DMA enable */
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retval |= fdctrl->dma_en << 3;
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/* Reset indicator */
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@ -836,9 +837,9 @@ static void fdctrl_write_rate (fdctrl_t *fdctrl, uint32_t value)
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{
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/* Reset mode */
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if (fdctrl->state & FD_CTRL_RESET) {
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FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
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return;
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}
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FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
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return;
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}
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FLOPPY_DPRINTF("select rate register set to 0x%02x\n", value);
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/* Reset: autoclear */
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if (value & 0x80) {
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@ -856,6 +857,7 @@ static void fdctrl_write_rate (fdctrl_t *fdctrl, uint32_t value)
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static int fdctrl_media_changed(fdrive_t *drv)
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{
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int ret;
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if (!drv->bs)
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return 0;
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ret = bdrv_media_changed(drv->bs);
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@ -871,7 +873,7 @@ static uint32_t fdctrl_read_dir (fdctrl_t *fdctrl)
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uint32_t retval = 0;
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if (fdctrl_media_changed(drv0(fdctrl)) ||
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fdctrl_media_changed(drv1(fdctrl)))
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fdctrl_media_changed(drv1(fdctrl)))
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retval |= 0x80;
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if (retval != 0)
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FLOPPY_DPRINTF("Floppy digital input register: 0x%02x\n", retval);
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@ -918,7 +920,7 @@ static void fdctrl_unimplemented (fdctrl_t *fdctrl)
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/* Callback for transfer end (stop or abort) */
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static void fdctrl_stop_transfer (fdctrl_t *fdctrl, uint8_t status0,
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uint8_t status1, uint8_t status2)
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uint8_t status1, uint8_t status2)
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{
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fdrive_t *cur_drv;
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@ -1000,12 +1002,12 @@ static void fdctrl_start_transfer (fdctrl_t *fdctrl, int direction)
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if (fdctrl->fifo[5] == 00) {
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fdctrl->data_len = fdctrl->fifo[8];
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} else {
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int tmp;
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int tmp;
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fdctrl->data_len = 128 << (fdctrl->fifo[5] > 7 ? 7 : fdctrl->fifo[5]);
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tmp = (cur_drv->last_sect - ks + 1);
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if (fdctrl->fifo[0] & 0x80)
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tmp += cur_drv->last_sect;
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fdctrl->data_len *= tmp;
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fdctrl->data_len *= tmp;
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}
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fdctrl->eot = fdctrl->fifo[6];
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if (fdctrl->dma_en) {
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@ -1014,9 +1016,9 @@ static void fdctrl_start_transfer (fdctrl_t *fdctrl, int direction)
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dma_mode = DMA_get_channel_mode(fdctrl->dma_chann);
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dma_mode = (dma_mode >> 2) & 3;
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FLOPPY_DPRINTF("dma_mode=%d direction=%d (%d - %d)\n",
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dma_mode, direction,
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dma_mode, direction,
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(128 << fdctrl->fifo[5]) *
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(cur_drv->last_sect - ks + 1), fdctrl->data_len);
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(cur_drv->last_sect - ks + 1), fdctrl->data_len);
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if (((direction == FD_DIR_SCANE || direction == FD_DIR_SCANL ||
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direction == FD_DIR_SCANH) && dma_mode == 0) ||
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(direction == FD_DIR_WRITE && dma_mode == 2) ||
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@ -1030,7 +1032,7 @@ static void fdctrl_start_transfer (fdctrl_t *fdctrl, int direction)
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DMA_schedule(fdctrl->dma_chann);
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return;
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} else {
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FLOPPY_ERROR("dma_mode=%d direction=%d\n", dma_mode, direction);
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FLOPPY_ERROR("dma_mode=%d direction=%d\n", dma_mode, direction);
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}
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}
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FLOPPY_DPRINTF("start non-DMA transfer\n");
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@ -1070,11 +1072,11 @@ static int fdctrl_transfer_handler (void *opaque, int nchan,
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if (dma_len > fdctrl->data_len)
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dma_len = fdctrl->data_len;
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if (cur_drv->bs == NULL) {
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if (fdctrl->data_dir == FD_DIR_WRITE)
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fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
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else
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fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
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len = 0;
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if (fdctrl->data_dir == FD_DIR_WRITE)
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fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
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else
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fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
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len = 0;
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goto transfer_error;
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}
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rel_pos = fdctrl->data_pos % FD_SECTOR_LEN;
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@ -1088,45 +1090,39 @@ static int fdctrl_transfer_handler (void *opaque, int nchan,
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cur_drv->track, cur_drv->sect, fd_sector(cur_drv),
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fd_sector(cur_drv) * 512);
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if (fdctrl->data_dir != FD_DIR_WRITE ||
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len < FD_SECTOR_LEN || rel_pos != 0) {
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len < FD_SECTOR_LEN || rel_pos != 0) {
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/* READ & SCAN commands and realign to a sector for WRITE */
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if (bdrv_read(cur_drv->bs, fd_sector(cur_drv),
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fdctrl->fifo, 1) < 0) {
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fdctrl->fifo, 1) < 0) {
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FLOPPY_DPRINTF("Floppy: error getting sector %d\n",
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fd_sector(cur_drv));
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/* Sure, image size is too small... */
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memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
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}
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}
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switch (fdctrl->data_dir) {
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case FD_DIR_READ:
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/* READ commands */
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switch (fdctrl->data_dir) {
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case FD_DIR_READ:
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/* READ commands */
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DMA_write_memory (nchan, fdctrl->fifo + rel_pos,
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fdctrl->data_pos, len);
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/* cpu_physical_memory_write(addr + fdctrl->data_pos, */
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/* fdctrl->fifo + rel_pos, len); */
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break;
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case FD_DIR_WRITE:
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break;
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case FD_DIR_WRITE:
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/* WRITE commands */
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DMA_read_memory (nchan, fdctrl->fifo + rel_pos,
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fdctrl->data_pos, len);
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/* cpu_physical_memory_read(addr + fdctrl->data_pos, */
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/* fdctrl->fifo + rel_pos, len); */
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if (bdrv_write(cur_drv->bs, fd_sector(cur_drv),
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fdctrl->fifo, 1) < 0) {
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fdctrl->fifo, 1) < 0) {
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FLOPPY_ERROR("writting sector %d\n", fd_sector(cur_drv));
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fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
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goto transfer_error;
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}
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break;
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default:
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/* SCAN commands */
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break;
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default:
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/* SCAN commands */
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{
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uint8_t tmpbuf[FD_SECTOR_LEN];
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uint8_t tmpbuf[FD_SECTOR_LEN];
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int ret;
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DMA_read_memory (nchan, tmpbuf, fdctrl->data_pos, len);
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/* cpu_physical_memory_read(addr + fdctrl->data_pos, */
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/* tmpbuf, len); */
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ret = memcmp(tmpbuf, fdctrl->fifo + rel_pos, len);
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if (ret == 0) {
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status2 = 0x08;
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|
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@ -1138,47 +1134,47 @@ static int fdctrl_transfer_handler (void *opaque, int nchan,
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goto end_transfer;
|
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}
|
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}
|
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break;
|
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break;
|
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}
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fdctrl->data_pos += len;
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rel_pos = fdctrl->data_pos % FD_SECTOR_LEN;
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fdctrl->data_pos += len;
|
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rel_pos = fdctrl->data_pos % FD_SECTOR_LEN;
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if (rel_pos == 0) {
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/* Seek to next sector */
|
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FLOPPY_DPRINTF("seek to next sector (%d %02x %02x => %d) (%d)\n",
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cur_drv->head, cur_drv->track, cur_drv->sect,
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fd_sector(cur_drv),
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fdctrl->data_pos - len);
|
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FLOPPY_DPRINTF("seek to next sector (%d %02x %02x => %d) (%d)\n",
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cur_drv->head, cur_drv->track, cur_drv->sect,
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fd_sector(cur_drv),
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fdctrl->data_pos - len);
|
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/* XXX: cur_drv->sect >= cur_drv->last_sect should be an
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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->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;
|
||||
cur_drv->track++;
|
||||
if ((cur_drv->flags & FDISK_DBL_SIDES) == 0)
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
cur_drv->track++;
|
||||
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));
|
||||
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++;
|
||||
}
|
||||
}
|
||||
}
|
||||
end_transfer:
|
||||
end_transfer:
|
||||
len = fdctrl->data_pos - start_pos;
|
||||
FLOPPY_DPRINTF("end transfer %d %d %d\n",
|
||||
fdctrl->data_pos, len, fdctrl->data_len);
|
||||
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)
|
||||
|
|
@ -1188,7 +1184,7 @@ end_transfer:
|
|||
fdctrl->data_len -= len;
|
||||
// if (fdctrl->data_len == 0)
|
||||
fdctrl_stop_transfer(fdctrl, status0, status1, status2);
|
||||
transfer_error:
|
||||
transfer_error:
|
||||
|
||||
return len;
|
||||
}
|
||||
|
|
@ -1284,18 +1280,18 @@ static void fdctrl_format_sector (fdctrl_t *fdctrl)
|
|||
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;
|
||||
}
|
||||
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;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -1423,8 +1419,8 @@ static void fdctrl_write_data (fdctrl_t *fdctrl, uint32_t value)
|
|||
#endif
|
||||
fdctrl->fifo[1] = cur_drv->track;
|
||||
fdctrl_set_fifo(fdctrl, 2, 0);
|
||||
fdctrl_reset_irq(fdctrl);
|
||||
fdctrl->int_status = 0xC0;
|
||||
fdctrl_reset_irq(fdctrl);
|
||||
fdctrl->int_status = 0xC0;
|
||||
return;
|
||||
case 0x0E:
|
||||
/* DUMPREG */
|
||||
|
|
@ -1439,7 +1435,7 @@ static void fdctrl_write_data (fdctrl_t *fdctrl, uint32_t value)
|
|||
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);
|
||||
(cur_drv->perpendicular << 2);
|
||||
fdctrl->fifo[8] = fdctrl->config;
|
||||
fdctrl->fifo[9] = fdctrl->precomp_trk;
|
||||
fdctrl_set_fifo(fdctrl, 10, 0);
|
||||
|
|
@ -1507,7 +1503,7 @@ static void fdctrl_write_data (fdctrl_t *fdctrl, uint32_t value)
|
|||
fdctrl->fifo[7] = fdctrl->timer1;
|
||||
fdctrl->fifo[8] = cur_drv->last_sect;
|
||||
fdctrl->fifo[9] = (fdctrl->lock << 7) |
|
||||
(cur_drv->perpendicular << 2);
|
||||
(cur_drv->perpendicular << 2);
|
||||
fdctrl->fifo[10] = fdctrl->config;
|
||||
fdctrl->fifo[11] = fdctrl->precomp_trk;
|
||||
fdctrl->fifo[12] = fdctrl->pwrd;
|
||||
|
|
@ -1584,25 +1580,25 @@ static void fdctrl_write_data (fdctrl_t *fdctrl, uint32_t value)
|
|||
return;
|
||||
}
|
||||
}
|
||||
enqueue:
|
||||
enqueue:
|
||||
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
|
||||
*/
|
||||
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(fdctrl, FD_DIR_READ);
|
||||
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(fdctrl, FD_DIR_READ);
|
||||
return;
|
||||
}
|
||||
case 0x0C:
|
||||
/* READ_DELETED variants */
|
||||
// FLOPPY_DPRINTF("treat READ_DELETED command\n");
|
||||
|
|
@ -1657,7 +1653,7 @@ enqueue:
|
|||
FLOPPY_DPRINTF("treat SPECIFY command\n");
|
||||
fdctrl->timer0 = (fdctrl->fifo[1] >> 4) & 0xF;
|
||||
fdctrl->timer1 = fdctrl->fifo[2] >> 1;
|
||||
fdctrl->dma_en = 1 - (fdctrl->fifo[2] & 1) ;
|
||||
fdctrl->dma_en = 1 - (fdctrl->fifo[2] & 1) ;
|
||||
/* No result back */
|
||||
fdctrl_reset_fifo(fdctrl);
|
||||
break;
|
||||
|
|
@ -1665,7 +1661,7 @@ enqueue:
|
|||
/* SENSE_DRIVE_STATUS */
|
||||
FLOPPY_DPRINTF("treat SENSE_DRIVE_STATUS command\n");
|
||||
fdctrl->cur_drv = fdctrl->fifo[1] & 1;
|
||||
cur_drv = get_cur_drv(fdctrl);
|
||||
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) |
|
||||
|
|
@ -1679,23 +1675,23 @@ enqueue:
|
|||
/* RECALIBRATE */
|
||||
FLOPPY_DPRINTF("treat RECALIBRATE command\n");
|
||||
fdctrl->cur_drv = fdctrl->fifo[1] & 1;
|
||||
cur_drv = get_cur_drv(fdctrl);
|
||||
cur_drv = get_cur_drv(fdctrl);
|
||||
fd_recalibrate(cur_drv);
|
||||
fdctrl_reset_fifo(fdctrl);
|
||||
fdctrl_reset_fifo(fdctrl);
|
||||
/* Raise Interrupt */
|
||||
fdctrl_raise_irq(fdctrl, 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 = get_cur_drv(fdctrl);
|
||||
fd_start(cur_drv);
|
||||
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;
|
||||
fdctrl_reset_fifo(fdctrl);
|
||||
fdctrl_reset_fifo(fdctrl);
|
||||
if (fdctrl->fifo[2] > cur_drv->max_track) {
|
||||
fdctrl_raise_irq(fdctrl, 0x60);
|
||||
} else {
|
||||
|
|
@ -1740,7 +1736,7 @@ enqueue:
|
|||
fdctrl_start_transfer(fdctrl, FD_DIR_READ);
|
||||
break;
|
||||
case 0x4A:
|
||||
/* READ_ID */
|
||||
/* READ_ID */
|
||||
FLOPPY_DPRINTF("treat READ_ID command\n");
|
||||
/* XXX: should set main status register to busy */
|
||||
cur_drv->head = (fdctrl->fifo[1] >> 2) & 1;
|
||||
|
|
@ -1766,30 +1762,30 @@ enqueue:
|
|||
break;
|
||||
case 0x4D:
|
||||
/* FORMAT_TRACK */
|
||||
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];
|
||||
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;
|
||||
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];
|
||||
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);
|
||||
/* 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 */
|
||||
|
|
@ -1815,16 +1811,16 @@ enqueue:
|
|||
/* RELATIVE_SEEK_OUT */
|
||||
FLOPPY_DPRINTF("treat RELATIVE_SEEK_OUT command\n");
|
||||
fdctrl->cur_drv = fdctrl->fifo[1] & 1;
|
||||
cur_drv = get_cur_drv(fdctrl);
|
||||
fd_start(cur_drv);
|
||||
cur_drv->dir = 0;
|
||||
cur_drv = get_cur_drv(fdctrl);
|
||||
fd_start(cur_drv);
|
||||
cur_drv->dir = 0;
|
||||
if (fdctrl->fifo[2] + cur_drv->track >= cur_drv->max_track) {
|
||||
cur_drv->track = cur_drv->max_track - 1;
|
||||
cur_drv->track = cur_drv->max_track - 1;
|
||||
} else {
|
||||
cur_drv->track += fdctrl->fifo[2];
|
||||
}
|
||||
fdctrl_reset_fifo(fdctrl);
|
||||
fdctrl_raise_irq(fdctrl, 0x20);
|
||||
fdctrl_reset_fifo(fdctrl);
|
||||
fdctrl_raise_irq(fdctrl, 0x20);
|
||||
break;
|
||||
case 0xCD:
|
||||
/* FORMAT_AND_WRITE */
|
||||
|
|
@ -1833,20 +1829,20 @@ enqueue:
|
|||
fdctrl_unimplemented(fdctrl);
|
||||
break;
|
||||
case 0xCF:
|
||||
/* RELATIVE_SEEK_IN */
|
||||
/* RELATIVE_SEEK_IN */
|
||||
FLOPPY_DPRINTF("treat RELATIVE_SEEK_IN command\n");
|
||||
fdctrl->cur_drv = fdctrl->fifo[1] & 1;
|
||||
cur_drv = get_cur_drv(fdctrl);
|
||||
fd_start(cur_drv);
|
||||
cur_drv->dir = 1;
|
||||
cur_drv = get_cur_drv(fdctrl);
|
||||
fd_start(cur_drv);
|
||||
cur_drv->dir = 1;
|
||||
if (fdctrl->fifo[2] > cur_drv->track) {
|
||||
cur_drv->track = 0;
|
||||
cur_drv->track = 0;
|
||||
} else {
|
||||
cur_drv->track -= fdctrl->fifo[2];
|
||||
}
|
||||
fdctrl_reset_fifo(fdctrl);
|
||||
/* Raise Interrupt */
|
||||
fdctrl_raise_irq(fdctrl, 0x20);
|
||||
fdctrl_reset_fifo(fdctrl);
|
||||
/* Raise Interrupt */
|
||||
fdctrl_raise_irq(fdctrl, 0x20);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
|
@ -1856,6 +1852,7 @@ 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.
|
||||
|
|
|
|||
Loading…
Reference in New Issue