Commit b7264cd3 authored by Alexander Viro's avatar Alexander Viro Committed by Linus Torvalds

[PATCH] gendisk for amiflop

amiflop.c switched to use of gendisks
parent 8e273c4e
......@@ -142,10 +142,6 @@ static struct fd_drive_type drive_types[] = {
};
static int num_dr_types = sizeof(drive_types) / sizeof(drive_types[0]);
/* defaults for 3 1/2" HD-Disks */
static int floppy_sizes[256]={880,880,880,880,720,720,720,720,};
/* hardsector size assumed to be 512 */
static int amiga_read(int), dos_read(int);
static void amiga_write(int), dos_write(int);
static struct fd_data_type data_types[] = {
......@@ -155,6 +151,7 @@ static struct fd_data_type data_types[] = {
/* current info on each unit */
static struct amiga_floppy_struct unit[FD_MAX_UNITS];
static char names[FD_MAX_UNITS][4];
static struct timer_list flush_track_timer[FD_MAX_UNITS];
static struct timer_list post_write_timer;
......@@ -1539,12 +1536,6 @@ static int fd_ioctl(struct inode *inode, struct file *filp,
sizeof(struct floppy_struct)))
return -EFAULT;
break;
case BLKGETSIZE:
return put_user(unit[drive].blocks,(unsigned long *)param);
break;
case BLKGETSIZE64:
return put_user((u64)unit[drive].blocks << 9, (u64 *)param);
break;
case FDSETPRM:
case FDDEFPRM:
return -EINVAL;
......@@ -1653,7 +1644,7 @@ static int floppy_open(struct inode *inode, struct file *filp)
unit[drive].dtype=&data_types[system];
unit[drive].blocks=unit[drive].type->heads*unit[drive].type->tracks*
data_types[system].sects*unit[drive].type->sect_mult;
floppy_sizes[minor(inode->i_rdev)] = unit[drive].blocks >> 1;
set_capacity(&unit[drive].disk, unit[drive].blocks);
printk(KERN_INFO "fd%d: accessing %s-disk with %s-layout\n",drive,
unit[drive].type->name, data_types[system].name);
......@@ -1720,11 +1711,11 @@ static int amiga_floppy_change(kdev_t dev)
}
static struct block_device_operations floppy_fops = {
owner: THIS_MODULE,
open: floppy_open,
release: floppy_release,
ioctl: fd_ioctl,
check_media_change: amiga_floppy_change,
.owner = THIS_MODULE,
.open = floppy_open,
.release = floppy_release,
.ioctl = fd_ioctl,
.check_media_change = amiga_floppy_change,
};
void __init amiga_floppy_setup (char *str, int *ints)
......@@ -1743,6 +1734,7 @@ static int __init fd_probe_drives(void)
for(drive=0;drive<FD_MAX_UNITS;drive++) {
fd_probe(drive);
if (unit[drive].type->code != FD_NODRIVE) {
struct gendisk *disk = &unit[drive].disk;
drives++;
if ((unit[drive].trackbuf = kmalloc(FLOPPY_MAX_SECTORS * 512, GFP_KERNEL)) == NULL) {
printk("no mem for ");
......@@ -1751,6 +1743,14 @@ static int __init fd_probe_drives(void)
nomem = 1;
}
printk("fd%d ",drive);
disk->major = MAJOR_NR;
disk->first_minor = drive;
disk->minor_shift = 0;
disk->fops = &floppy_fops;
sprintf(names[drive], "fd%d");
disk->name = names[drive];
set_capacity(disk, 880*2);
add_disk(disk);
}
}
if ((drives > 0) || (nomem == 0)) {
......@@ -1763,6 +1763,14 @@ static int __init fd_probe_drives(void)
return -ENOMEM;
}
static struct gendisk *floppy_find(int minor)
{
int drive = minor & 3;
if (unit[drive].type->code == FD_NODRIVE)
return NULL;
return &unit[drive].disk;
}
int __init amiga_floppy_init(void)
{
int i;
......@@ -1805,7 +1813,9 @@ int __init amiga_floppy_init(void)
unregister_blkdev(MAJOR_NR,"fd");
return -EBUSY;
}
blk_set_probe(MAJOR_NR, floppy_find);
if (fd_probe_drives() < 1) { /* No usable drives */
blk_set_probe(MAJOR_NR, NULL);
free_irq(IRQ_AMIGA_CIAA_TB, NULL);
free_irq(IRQ_AMIGA_DSKBLK, NULL);
amiga_chip_free(raw_buf);
......@@ -1838,8 +1848,6 @@ int __init amiga_floppy_init(void)
post_write_timer.function = post_write;
blk_init_queue(BLK_DEFAULT_QUEUE(MAJOR_NR), do_fd_request, &amiflop_lock);
blk_size[MAJOR_NR] = floppy_sizes;
for (i = 0; i < 128; i++)
mfmdecode[i]=255;
for (i = 0; i < 16; i++)
......@@ -1867,9 +1875,13 @@ void cleanup_module(void)
{
int i;
for( i = 0; i < FD_MAX_UNITS; i++)
if (unit[i].type->code != FD_NODRIVE)
for( i = 0; i < FD_MAX_UNITS; i++) {
if (unit[i].type->code != FD_NODRIVE) {
del_gendisk(&unit[i].disk);
kfree(unit[i].trackbuf);
}
}
blk_set_probe(MAJOR_NR, NULL);
free_irq(IRQ_AMIGA_CIAA_TB, NULL);
free_irq(IRQ_AMIGA_DSKBLK, NULL);
custom.dmacon = DMAF_DISK; /* disable DMA */
......
......@@ -55,6 +55,7 @@ struct amiga_floppy_struct {
int busy; /* true when drive is active */
int dirty; /* true when trackbuf is not on disk */
int status; /* current error code for unit */
struct gendisk disk;
};
#endif
......
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