*/
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/fd.h>
#include <linux/hdreg.h>
#include <linux/blkdev.h>
#include <linux/elevator.h>
#include <linux/interrupt.h>
+#include <linux/platform_device.h>
#include <asm/setup.h>
#include <asm/uaccess.h>
MODULE_LICENSE("GPL");
static struct request_queue *floppy_queue;
-#define QUEUE (floppy_queue)
-#define CURRENT elv_next_request(floppy_queue)
/*
* Macros
static void redo_fd_request(void)
{
+ struct request *rq;
unsigned int cnt, block, track, sector;
int drive;
struct amiga_floppy_struct *floppy;
char *data;
unsigned long flags;
+ int err;
- repeat:
- if (!CURRENT) {
+next_req:
+ rq = blk_fetch_request(floppy_queue);
+ if (!rq) {
/* Nothing left to do */
return;
}
- floppy = CURRENT->rq_disk->private_data;
+ floppy = rq->rq_disk->private_data;
drive = floppy - unit;
+next_segment:
/* Here someone could investigate to be more efficient */
- for (cnt = 0; cnt < CURRENT->current_nr_sectors; cnt++) {
+ for (cnt = 0, err = 0; cnt < blk_rq_cur_sectors(rq); cnt++) {
#ifdef DEBUG
printk("fd: sector %ld + %d requested for %s\n",
- CURRENT->sector,cnt,
- (rq_data_dir(CURRENT) == READ) ? "read" : "write");
+ blk_rq_pos(rq), cnt,
+ (rq_data_dir(rq) == READ) ? "read" : "write");
#endif
- block = CURRENT->sector + cnt;
+ block = blk_rq_pos(rq) + cnt;
if ((int)block > floppy->blocks) {
- __blk_end_request_cur(CURRENT, -EIO);
- goto repeat;
+ err = -EIO;
+ break;
}
track = block / (floppy->dtype->sects * floppy->type->sect_mult);
sector = block % (floppy->dtype->sects * floppy->type->sect_mult);
- data = CURRENT->buffer + 512 * cnt;
+ data = rq->buffer + 512 * cnt;
#ifdef DEBUG
printk("access to track %d, sector %d, with buffer at "
"0x%08lx\n", track, sector, data);
#endif
if (get_track(drive, track) == -1) {
- __blk_end_request_cur(CURRENT, -EIO);
- goto repeat;
+ err = -EIO;
+ break;
}
- switch (rq_data_dir(CURRENT)) {
- case READ:
+ if (rq_data_dir(rq) == READ) {
memcpy(data, floppy->trackbuf + sector * 512, 512);
- break;
-
- case WRITE:
+ } else {
memcpy(floppy->trackbuf + sector * 512, data, 512);
/* keep the drive spinning while writes are scheduled */
if (!fd_motor_on(drive)) {
- __blk_end_request_cur(CURRENT, -EIO);
- goto repeat;
+ err = -EIO;
+ break;
}
/*
* setup a callback to write the track buffer
/* reset the timer */
mod_timer (flush_track_timer + drive, jiffies + 1);
local_irq_restore(flags);
- break;
}
}
- __blk_end_request_cur(CURRENT, 0);
- goto repeat;
+ if (__blk_end_request_cur(rq, err))
+ goto next_segment;
+ goto next_req;
}
static void do_fd_request(struct request_queue * q)
return 0;
}
-static struct block_device_operations floppy_fops = {
+static const struct block_device_operations floppy_fops = {
.owner = THIS_MODULE,
.open = floppy_open,
.release = floppy_release,
{
int drive,drives,nomem;
- printk(KERN_INFO "FD: probing units\n" KERN_INFO "found ");
+ printk(KERN_INFO "FD: probing units\nfound ");
drives=0;
nomem=0;
for(drive=0;drive<FD_MAX_UNITS;drive++) {
return get_disk(unit[drive].gendisk);
}
-static int __init amiga_floppy_init(void)
+static int __init amiga_floppy_probe(struct platform_device *pdev)
{
int i, ret;
- if (!MACH_IS_AMIGA)
- return -ENODEV;
-
- if (!AMIGAHW_PRESENT(AMI_FLOPPY))
- return -ENODEV;
-
if (register_blkdev(FLOPPY_MAJOR,"fd"))
return -EBUSY;
- /*
- * We request DSKPTR, DSKLEN and DSKDATA only, because the other
- * floppy registers are too spreaded over the custom register space
- */
- ret = -EBUSY;
- if (!request_mem_region(CUSTOM_PHYSADDR+0x20, 8, "amiflop [Paula]")) {
- printk("fd: cannot get floppy registers\n");
- goto out_blkdev;
- }
-
ret = -ENOMEM;
if ((raw_buf = (char *)amiga_chip_alloc (RAW_BUF_SIZE, "Floppy")) ==
NULL) {
printk("fd: cannot get chip mem buffer\n");
- goto out_memregion;
+ goto out_blkdev;
}
ret = -EBUSY;
free_irq(IRQ_AMIGA_DSKBLK, NULL);
out_irq:
amiga_chip_free(raw_buf);
-out_memregion:
- release_mem_region(CUSTOM_PHYSADDR+0x20, 8);
out_blkdev:
unregister_blkdev(FLOPPY_MAJOR,"fd");
return ret;
}
-module_init(amiga_floppy_init);
-#ifdef MODULE
-
#if 0 /* not safe to unload */
-void cleanup_module(void)
+static int __exit amiga_floppy_remove(struct platform_device *pdev)
{
int i;
custom.dmacon = DMAF_DISK; /* disable DMA */
amiga_chip_free(raw_buf);
blk_cleanup_queue(floppy_queue);
- release_mem_region(CUSTOM_PHYSADDR+0x20, 8);
unregister_blkdev(FLOPPY_MAJOR, "fd");
}
#endif
-#else
+static struct platform_driver amiga_floppy_driver = {
+ .driver = {
+ .name = "amiga-floppy",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init amiga_floppy_init(void)
+{
+ return platform_driver_probe(&amiga_floppy_driver, amiga_floppy_probe);
+}
+
+module_init(amiga_floppy_init);
+
+#ifndef MODULE
static int __init amiga_floppy_setup (char *str)
{
int n;
__setup("floppy=", amiga_floppy_setup);
#endif
+
+MODULE_ALIAS("platform:amiga-floppy");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff