* Better audit of register_blkdev.
*/
-#define FLOPPY_SANITY_CHECK
#undef FLOPPY_SILENT_DCL_CLEAR
#define REALLY_SLOW_IO
#define DEBUGT 2
-#define DCL_DEBUG /* debug disk change line */
+#define DPRINT(format, args...) \
+ pr_info("floppy%d: " format, current_drive, ##args)
+
+#define DCL_DEBUG /* debug disk change line */
#ifdef DCL_DEBUG
#define debug_dcl(test, fmt, args...) \
do { if ((test) & FD_DEBUG) DPRINT(fmt, ##args); } while (0)
do { if (0) DPRINT(fmt, ##args); } while (0)
#endif
-
/* do print messages for unexpected interrupts */
static int print_unex = 1;
#include <linux/module.h>
#define UDRWE (&write_errors[drive])
#define UFDCS (&fdc_state[FDC(drive)])
-#define DPRINT(format, args...) \
- pr_info("floppy%d: " format, current_drive, ##args)
-
#define PH_HEAD(floppy, head) (((((floppy)->stretch & 2) >> 1) ^ head) << 2)
#define STRETCH(floppy) ((floppy)->stretch & FD_STRETCH)
*/
#define MAX_REPLIES 16
static unsigned char reply_buffer[MAX_REPLIES];
-static int inr; /* size of reply buffer, when called from interrupt */
+static int inr; /* size of reply buffer, when called from interrupt */
#define ST0 (reply_buffer[0])
#define ST1 (reply_buffer[1])
#define ST2 (reply_buffer[2])
debugtimer = jiffies;
}
-static inline void debugt(const char *message)
+static inline void debugt(const char *func, const char *msg)
{
if (DP->flags & DEBUGT)
- pr_info("%s dtime=%lu\n", message, jiffies - debugtimer);
+ pr_info("%s:%s dtime=%lu\n", func, msg, jiffies - debugtimer);
}
#else
static inline void set_debugt(void) { }
-static inline void debugt(const char *message) { }
+static inline void debugt(const char *func, const char *msg) { }
#endif /* DEBUGT */
typedef void (*timeout_fn)(unsigned long);
static const char *timeout_message;
-#ifdef FLOPPY_SANITY_CHECK
-static void is_alive(const char *message)
+static void is_alive(const char *func, const char *message)
{
/* this routine checks whether the floppy driver is "alive" */
if (test_bit(0, &fdc_busy) && command_status < 2 &&
!timer_pending(&fd_timeout)) {
- DPRINT("timeout handler died: %s\n", message);
+ DPRINT("%s: timeout handler died. %s\n", func, message);
}
}
-#endif
static void (*do_floppy)(void) = NULL;
-#ifdef FLOPPY_SANITY_CHECK
-
#define OLOGSIZE 20
static void (*lasthandler)(void);
} output_log[OLOGSIZE];
static int output_log_pos;
-#endif
#define current_reqD -1
#define MAXTIMEOUT -2
-static void __reschedule_timeout(int drive, const char *message, int marg)
+static void __reschedule_timeout(int drive, const char *message)
{
if (drive == current_reqD)
drive = current_drive;
fd_timeout.expires = jiffies + UDP->timeout;
add_timer(&fd_timeout);
if (UDP->flags & FD_DEBUG)
- DPRINT("reschedule timeout %s %d\n", message, marg);
+ DPRINT("reschedule timeout %s\n", message);
timeout_message = message;
}
-static void reschedule_timeout(int drive, const char *message, int marg)
+static void reschedule_timeout(int drive, const char *message)
{
unsigned long flags;
spin_lock_irqsave(&floppy_lock, flags);
- __reschedule_timeout(drive, message, marg);
+ __reschedule_timeout(drive, message);
spin_unlock_irqrestore(&floppy_lock, flags);
}
{
int fdc = FDC(drive);
-#ifdef FLOPPY_SANITY_CHECK
if (time_before(jiffies, UDRS->select_date + UDP->select_delay))
DPRINT("WARNING disk change called early\n");
if (!(FDCS->dor & (0x10 << UNIT(drive))) ||
DPRINT("drive=%d fdc=%d dor=%x\n", drive, FDC(drive),
(unsigned int)FDCS->dor);
}
-#endif
debug_dcl(UDP->flags,
"checking disk change line for drive %d\n", drive);
if (UDRS->keep_data >= 0) {
if ((UDP->flags & FTD_MSG) &&
current_type[drive] != NULL)
- DPRINT("Disk type is undefined after "
- "disk change\n");
+ DPRINT("Disk type is undefined after disk change\n");
current_type[drive] = NULL;
floppy_sizes[TOMINOR(drive)] = MAX_DISK_SIZE << 1;
}
return ((dor & (0x10 << unit)) && (dor & 3) == unit);
}
+static bool is_ready_state(int status)
+{
+ int state = status & (STATUS_READY | STATUS_DIR | STATUS_DMA);
+ return state == STATUS_READY;
+}
+
static int set_dor(int fdc, char mask, char data)
{
unsigned char unit;
DRS->select_date = jiffies;
}
-/* reset all driver information about the current fdc. This is needed after
- * a reset, and after a raw command. */
+/*
+ * Reset all driver information about the current fdc.
+ * This is needed after a reset, and after a raw command.
+ */
static void reset_fdc_info(int mode)
{
int drive;
}
command_status = FD_COMMAND_NONE;
- __reschedule_timeout(drive, "lock fdc", 0);
+ __reschedule_timeout(drive, "lock fdc");
set_fdc(drive);
return 0;
}
DPRINT("FDC access conflict!\n");
if (do_floppy)
- DPRINT("device interrupt still active at FDC release: %p!\n",
+ DPRINT("device interrupt still active at FDC release: %pf!\n",
do_floppy);
command_status = FD_COMMAND_NONE;
spin_lock_irqsave(&floppy_lock, flags);
{
unsigned long f;
-#ifdef FLOPPY_SANITY_CHECK
if (raw_cmd->length == 0) {
int i;
FDCS->reset = 1;
return;
}
-#endif
f = claim_dma_lock();
fd_disable_dma();
#ifdef fd_dma_setup
if (status < 0)
return -1;
- if ((status & (STATUS_READY | STATUS_DIR | STATUS_DMA)) == STATUS_READY) {
+
+ if (is_ready_state(status)) {
fd_outb(byte, FD_DATA);
-#ifdef FLOPPY_SANITY_CHECK
output_log[output_log_pos].data = byte;
output_log[output_log_pos].status = status;
output_log[output_log_pos].jiffies = jiffies;
output_log_pos = (output_log_pos + 1) % OLOGSIZE;
-#endif
return 0;
}
FDCS->reset = 1;
break;
status &= STATUS_DIR | STATUS_READY | STATUS_BUSY | STATUS_DMA;
if ((status & ~STATUS_BUSY) == STATUS_READY) {
-#ifdef FLOPPY_SANITY_CHECK
resultjiffies = jiffies;
resultsize = i;
-#endif
return i;
}
if (status == (STATUS_DIR | STATUS_READY | STATUS_BUSY))
if (status < 0)
return -1;
- if ((status & (STATUS_READY | STATUS_DIR | STATUS_DMA)) == STATUS_READY)
+
+ if (is_ready_state(status))
return MORE_OUTPUT;
+
return result();
}
char bad;
if (inr != 7) {
- DPRINT("-- FDC reply error");
+ DPRINT("-- FDC reply error\n");
FDCS->reset = 1;
return 1;
}
for (i = 0; i < raw_cmd->cmd_count; i++)
r |= output_byte(raw_cmd->cmd[i]);
- debugt("rw_command: ");
+ debugt(__func__, "rw_command");
if (r) {
cont->error();
*/
static void seek_interrupt(void)
{
- debugt("seek interrupt:");
+ debugt(__func__, "");
if (inr != 2 || (ST0 & 0xF8) != 0x20) {
DPRINT("seek failed\n");
DRS->track = NEED_2_RECAL;
blind_seek = 0;
- debug_dcl(DP->flags, "calling disk change from seek\n");
+ debug_dcl(DP->flags, "calling disk change from %s\n", __func__);
if (!test_bit(FD_DISK_NEWCHANGE_BIT, &DRS->flags) &&
disk_change(current_drive) && (raw_cmd->flags & FD_RAW_NEED_DISK)) {
reset_fdc();
return;
}
- debugt("seek command:");
+ debugt(__func__, "");
}
static void recal_interrupt(void)
{
- debugt("recal interrupt:");
+ debugt(__func__, "");
if (inr != 2)
FDCS->reset = 1;
else if (ST0 & ST0_ECE) {
switch (DRS->track) {
case NEED_1_RECAL:
- debugt("recal interrupt need 1 recal:");
+ debugt(__func__, "need 1 recal");
/* after a second recalibrate, we still haven't
* reached track 0. Probably no drive. Raise an
* error, as failing immediately might upset
cont->redo();
return;
case NEED_2_RECAL:
- debugt("recal interrupt need 2 recal:");
+ debugt(__func__, "need 2 recal");
/* If we already did a recalibrate,
* and we are not at track 0, this
* means we have moved. (The only way
DRS->select_date = jiffies;
/* fall through */
default:
- debugt("recal interrupt default:");
+ debugt(__func__, "default");
/* Recalibrate moves the head by at
* most 80 steps. If after one
* recalibrate we don't have reached
/* we don't even know which FDC is the culprit */
pr_info("DOR0=%x\n", fdc_state[0].dor);
pr_info("floppy interrupt on bizarre fdc %d\n", fdc);
- pr_info("handler=%p\n", handler);
- is_alive("bizarre fdc");
+ pr_info("handler=%pf\n", handler);
+ is_alive(__func__, "bizarre fdc");
return IRQ_NONE;
}
return IRQ_NONE;
}
schedule_bh(handler);
- is_alive("normal interrupt end");
+ is_alive(__func__, "normal interrupt end");
/* FIXME! Was it really for us? */
return IRQ_HANDLED;
static void recalibrate_floppy(void)
{
- debugt("recalibrate floppy:");
+ debugt(__func__, "");
do_floppy = recal_interrupt;
output_byte(FD_RECALIBRATE);
- if (output_byte(UNIT(current_drive)) < 0) {
+ if (output_byte(UNIT(current_drive)) < 0)
reset_fdc();
- return;
- }
}
/*
*/
static void reset_interrupt(void)
{
- debugt("reset interrupt:");
+ debugt(__func__, "");
result(); /* get the status ready for set_fdc */
if (FDCS->reset) {
- pr_info("reset set in interrupt, calling %p\n", cont->error);
+ pr_info("reset set in interrupt, calling %pf\n", cont->error);
cont->error(); /* a reset just after a reset. BAD! */
}
cont->redo();
pr_info("\n");
pr_info("floppy driver state\n");
pr_info("-------------------\n");
- pr_info("now=%lu last interrupt=%lu diff=%lu last called handler=%p\n",
+ pr_info("now=%lu last interrupt=%lu diff=%lu last called handler=%pf\n",
jiffies, interruptjiffies, jiffies - interruptjiffies,
lasthandler);
-#ifdef FLOPPY_SANITY_CHECK
pr_info("timeout_message=%s\n", timeout_message);
pr_info("last output bytes:\n");
for (i = 0; i < OLOGSIZE; i++)
pr_info("last redo_fd_request at %lu\n", lastredo);
print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 1,
reply_buffer, resultsize, true);
-#endif
pr_info("status=%x\n", fd_inb(FD_STATUS));
pr_info("fdc_busy=%lu\n", fdc_busy);
if (do_floppy)
- pr_info("do_floppy=%p\n", do_floppy);
+ pr_info("do_floppy=%pf\n", do_floppy);
if (work_pending(&floppy_work))
- pr_info("floppy_work.func=%p\n", floppy_work.func);
+ pr_info("floppy_work.func=%pf\n", floppy_work.func);
if (timer_pending(&fd_timer))
- pr_info("fd_timer.function=%p\n", fd_timer.function);
+ pr_info("fd_timer.function=%pf\n", fd_timer.function);
if (timer_pending(&fd_timeout)) {
- pr_info("timer_function=%p\n", fd_timeout.function);
+ pr_info("timer_function=%pf\n", fd_timeout.function);
pr_info("expires=%lu\n", fd_timeout.expires - jiffies);
pr_info("now=%lu\n", jiffies);
}
pr_info("no cont in shutdown!\n");
process_fd_request();
}
- is_alive("floppy shutdown");
+ is_alive(__func__, "");
}
/* start motor, check media-changed condition and write protection */
static void floppy_start(void)
{
- reschedule_timeout(current_reqD, "floppy start", 0);
+ reschedule_timeout(current_reqD, "floppy start");
scandrives();
debug_dcl(DP->flags, "setting NEWCHANGE in floppy_start\n");
static void do_wakeup(void)
{
- reschedule_timeout(MAXTIMEOUT, "do wakeup", 0);
+ reschedule_timeout(MAXTIMEOUT, "do wakeup");
cont = NULL;
command_status += 2;
wake_up(&command_done);
if (command_status >= 2 || !NO_SIGNAL)
break;
- is_alive("wait_til_done");
+ is_alive(__func__, "");
schedule();
}
cont->redo();
}
-#define CODE2SIZE (ssize = ((1 << SIZECODE) + 3) >> 2)
#define FM_MODE(x, y) ((y) & ~(((x)->rate & 0x80) >> 1))
#define CT(x) ((x) | 0xc0)
buffer_track = -1;
setup_format_params(format_req.track << STRETCH(_floppy));
floppy_start();
- debugt("queue format request");
+ debugt(__func__, "queue format request");
}
static struct cont_t format_cont = {
struct request *req = current_req;
unsigned long flags;
int block;
+ char msg[sizeof("request done ") + sizeof(int) * 3];
probing = 0;
- reschedule_timeout(MAXTIMEOUT, "request done", uptodate);
+ snprintf(msg, sizeof(msg), "request done %d", uptodate);
+ reschedule_timeout(MAXTIMEOUT, msg);
if (!req) {
pr_info("floppy.c: no request in request_done\n");
DRS->first_read_date = jiffies;
nr_sectors = 0;
- CODE2SIZE;
+ ssize = DIV_ROUND_UP(1 << SIZECODE, 4);
if (ST1 & ST1_EOC)
eoc = 1;
R_HEAD - HEAD) * SECT_PER_TRACK +
R_SECTOR - SECTOR + eoc) << SIZECODE >> 2;
-#ifdef FLOPPY_SANITY_CHECK
if (nr_sectors / ssize >
DIV_ROUND_UP(in_sector_offset + current_count_sectors, ssize)) {
DPRINT("long rw: %x instead of %lx\n",
SECT_PER_TRACK, fsector_t, ssize);
pr_info("in_sector_offset=%d\n", in_sector_offset);
}
-#endif
nr_sectors -= in_sector_offset;
INFBOUND(nr_sectors, 0);
blk_rq_sectors(current_req));
remaining = current_count_sectors << 9;
-#ifdef FLOPPY_SANITY_CHECK
if (remaining > blk_rq_bytes(current_req) && CT(COMMAND) == FD_WRITE) {
DPRINT("in copy buffer\n");
pr_info("current_count_sectors=%ld\n", current_count_sectors);
pr_info("max_sector=%d\n", max_sector);
pr_info("ssize=%d\n", ssize);
}
-#endif
buffer_max = max(max_sector, buffer_max);
SUPBOUND(size, remaining);
buffer = page_address(bv->bv_page) + bv->bv_offset;
-#ifdef FLOPPY_SANITY_CHECK
if (dma_buffer + size >
floppy_track_buffer + (max_buffer_sectors << 10) ||
dma_buffer < floppy_track_buffer) {
}
if (((unsigned long)buffer) % 512)
DPRINT("%p buffer not aligned\n", buffer);
-#endif
+
if (CT(COMMAND) == FD_READ)
memcpy(buffer, dma_buffer, size);
else
remaining -= size;
dma_buffer += size;
}
-#ifdef FLOPPY_SANITY_CHECK
if (remaining) {
if (remaining > 0)
max_sector -= remaining >> 9;
DPRINT("weirdness: remaining %d\n", remaining >> 9);
}
-#endif
}
/* work around a bug in pseudo DMA
hard_sectors = raw_cmd->length >> (7 + SIZECODE);
end_sector = SECTOR + hard_sectors - 1;
-#ifdef FLOPPY_SANITY_CHECK
if (end_sector > SECT_PER_TRACK) {
pr_info("too many sectors %d > %d\n",
end_sector, SECT_PER_TRACK);
return;
}
-#endif
SECT_PER_TRACK = end_sector;
/* make sure SECT_PER_TRACK
* points to end of transfer */
raw_cmd->flags |= FD_RAW_WRITE;
COMMAND = FM_MODE(_floppy, FD_WRITE);
} else {
- DPRINT("make_raw_rw_request: unknown command\n");
+ DPRINT("%s: unknown command\n", __func__);
return 0;
}
raw_cmd->track = TRACK << STRETCH(_floppy);
DR_SELECT = UNIT(current_drive) + PH_HEAD(_floppy, HEAD);
GAP = _floppy->gap;
- CODE2SIZE;
+ ssize = DIV_ROUND_UP(1 << SIZECODE, 4);
SECT_PER_TRACK = _floppy->sect << 2 >> SIZECODE;
SECTOR = ((fsector_t % _floppy->sect) << 2 >> SIZECODE) +
FD_SECTBASE(_floppy);
raw_cmd->kernel_data = current_req->buffer;
raw_cmd->length = current_count_sectors << 9;
if (raw_cmd->length == 0) {
- DPRINT("zero dma transfer attempted from make_raw_request\n");
+ DPRINT("%s: zero dma transfer attempted\n", __func__);
DPRINT("indirect=%d direct=%d fsector_t=%d\n",
indirect, direct, fsector_t);
return 0;
* if we get here, we know that the write
* is either aligned or the data already in the buffer
* (buffer will be overwritten) */
-#ifdef FLOPPY_SANITY_CHECK
if (in_sector_offset && buffer_track == -1)
DPRINT("internal error offset !=0 on write\n");
-#endif
buffer_track = raw_cmd->track;
buffer_drive = current_drive;
copy_buffer(ssize, max_sector,
raw_cmd->length = in_sector_offset + current_count_sectors;
raw_cmd->length = ((raw_cmd->length - 1) | (ssize - 1)) + 1;
raw_cmd->length <<= 9;
-#ifdef FLOPPY_SANITY_CHECK
if ((raw_cmd->length < current_count_sectors << 9) ||
(raw_cmd->kernel_data != current_req->buffer &&
CT(COMMAND) == FD_WRITE &&
DPRINT("zero dma transfer attempted from make_raw_request\n");
return 0;
}
-#endif
virtualdmabug_workaround();
return 2;
static void redo_fd_request(void)
{
-#define REPEAT {request_done(0); continue; }
int drive;
int tmp;
if (current_drive < N_DRIVE)
floppy_off(current_drive);
- for (;;) {
- if (!current_req) {
- struct request *req;
-
- spin_lock_irq(floppy_queue->queue_lock);
- req = blk_fetch_request(floppy_queue);
- spin_unlock_irq(floppy_queue->queue_lock);
- if (!req) {
- do_floppy = NULL;
- unlock_fdc();
- return;
- }
- current_req = req;
- }
- drive = (long)current_req->rq_disk->private_data;
- set_fdc(drive);
- reschedule_timeout(current_reqD, "redo fd request", 0);
+do_request:
+ if (!current_req) {
+ struct request *req;
- set_floppy(drive);
- raw_cmd = &default_raw_cmd;
- raw_cmd->flags = 0;
- if (start_motor(redo_fd_request))
+ spin_lock_irq(floppy_queue->queue_lock);
+ req = blk_fetch_request(floppy_queue);
+ spin_unlock_irq(floppy_queue->queue_lock);
+ if (!req) {
+ do_floppy = NULL;
+ unlock_fdc();
return;
- disk_change(current_drive);
- if (test_bit(current_drive, &fake_change) ||
- test_bit(FD_DISK_CHANGED_BIT, &DRS->flags)) {
- DPRINT("disk absent or changed during operation\n");
- REPEAT;
- }
- if (!_floppy) { /* Autodetection */
- if (!probing) {
- DRS->probed_format = 0;
- if (next_valid_format()) {
- DPRINT("no autodetectable formats\n");
- _floppy = NULL;
- REPEAT;
- }
- }
- probing = 1;
- _floppy =
- floppy_type + DP->autodetect[DRS->probed_format];
- } else
- probing = 0;
- errors = &(current_req->errors);
- tmp = make_raw_rw_request();
- if (tmp < 2) {
- request_done(tmp);
- continue;
}
+ current_req = req;
+ }
+ drive = (long)current_req->rq_disk->private_data;
+ set_fdc(drive);
+ reschedule_timeout(current_reqD, "redo fd request");
- if (test_bit(FD_NEED_TWADDLE_BIT, &DRS->flags))
- twaddle();
- schedule_bh(floppy_start);
- debugt("queue fd request");
+ set_floppy(drive);
+ raw_cmd = &default_raw_cmd;
+ raw_cmd->flags = 0;
+ if (start_motor(redo_fd_request))
return;
+
+ disk_change(current_drive);
+ if (test_bit(current_drive, &fake_change) ||
+ test_bit(FD_DISK_CHANGED_BIT, &DRS->flags)) {
+ DPRINT("disk absent or changed during operation\n");
+ request_done(0);
+ goto do_request;
}
-#undef REPEAT
+ if (!_floppy) { /* Autodetection */
+ if (!probing) {
+ DRS->probed_format = 0;
+ if (next_valid_format()) {
+ DPRINT("no autodetectable formats\n");
+ _floppy = NULL;
+ request_done(0);
+ goto do_request;
+ }
+ }
+ probing = 1;
+ _floppy = floppy_type + DP->autodetect[DRS->probed_format];
+ } else
+ probing = 0;
+ errors = &(current_req->errors);
+ tmp = make_raw_rw_request();
+ if (tmp < 2) {
+ request_done(tmp);
+ goto do_request;
+ }
+
+ if (test_bit(FD_NEED_TWADDLE_BIT, &DRS->flags))
+ twaddle();
+ schedule_bh(floppy_start);
+ debugt(__func__, "queue fd request");
+ return;
}
static struct cont_t rw_cont = {
static void do_fd_request(struct request_queue *q)
{
if (max_buffer_sectors == 0) {
- pr_info("VFS: do_fd_request called on non-open device\n");
+ pr_info("VFS: %s called on non-open device\n", __func__);
return;
}
if (test_bit(0, &fdc_busy)) {
/* fdc busy, this new request will be treated when the
current one is done */
- is_alive("do fd request, old request running");
+ is_alive(__func__, "old request running");
return;
}
lock_fdc(MAXTIMEOUT, false);
process_fd_request();
- is_alive("do fd request");
+ is_alive(__func__, "");
}
static struct cont_t poll_cont = {
.done = raw_cmd_done
};
-static inline int raw_cmd_copyout(int cmd, char __user *param,
+static inline int raw_cmd_copyout(int cmd, void __user *param,
struct floppy_raw_cmd *ptr)
{
int ret;
while (ptr) {
- ret = copy_to_user((void __user *)param, ptr, sizeof(*ptr));
+ ret = copy_to_user(param, ptr, sizeof(*ptr));
if (ret)
return -EFAULT;
param += sizeof(struct floppy_raw_cmd);
}
ptr = ptr->next;
}
+
return 0;
}
}
}
-static inline int raw_cmd_copyin(int cmd, char __user *param,
+static inline int raw_cmd_copyin(int cmd, void __user *param,
struct floppy_raw_cmd **rcmd)
{
struct floppy_raw_cmd *ptr;
int i;
*rcmd = NULL;
- while (1) {
- ptr = (struct floppy_raw_cmd *)
- kmalloc(sizeof(struct floppy_raw_cmd), GFP_USER);
- if (!ptr)
- return -ENOMEM;
- *rcmd = ptr;
- ret = copy_from_user(ptr, (void __user *)param, sizeof(*ptr));
- if (ret)
- return -EFAULT;
- ptr->next = NULL;
- ptr->buffer_length = 0;
- param += sizeof(struct floppy_raw_cmd);
- if (ptr->cmd_count > 33)
+
+loop:
+ ptr = kmalloc(sizeof(struct floppy_raw_cmd), GFP_USER);
+ if (!ptr)
+ return -ENOMEM;
+ *rcmd = ptr;
+ ret = copy_from_user(ptr, param, sizeof(*ptr));
+ if (ret)
+ return -EFAULT;
+ ptr->next = NULL;
+ ptr->buffer_length = 0;
+ param += sizeof(struct floppy_raw_cmd);
+ if (ptr->cmd_count > 33)
/* the command may now also take up the space
* initially intended for the reply & the
* reply count. Needed for long 82078 commands
* 16 bytes for a structure, you'll one day
* discover that you really need 17...
*/
+ return -EINVAL;
+
+ for (i = 0; i < 16; i++)
+ ptr->reply[i] = 0;
+ ptr->resultcode = 0;
+ ptr->kernel_data = NULL;
+
+ if (ptr->flags & (FD_RAW_READ | FD_RAW_WRITE)) {
+ if (ptr->length <= 0)
return -EINVAL;
+ ptr->kernel_data = (char *)fd_dma_mem_alloc(ptr->length);
+ fallback_on_nodma_alloc(&ptr->kernel_data, ptr->length);
+ if (!ptr->kernel_data)
+ return -ENOMEM;
+ ptr->buffer_length = ptr->length;
+ }
+ if (ptr->flags & FD_RAW_WRITE) {
+ ret = fd_copyin(ptr->data, ptr->kernel_data, ptr->length);
+ if (ret)
+ return ret;
+ }
- for (i = 0; i < 16; i++)
- ptr->reply[i] = 0;
- ptr->resultcode = 0;
- ptr->kernel_data = NULL;
-
- if (ptr->flags & (FD_RAW_READ | FD_RAW_WRITE)) {
- if (ptr->length <= 0)
- return -EINVAL;
- ptr->kernel_data =
- (char *)fd_dma_mem_alloc(ptr->length);
- fallback_on_nodma_alloc(&ptr->kernel_data, ptr->length);
- if (!ptr->kernel_data)
- return -ENOMEM;
- ptr->buffer_length = ptr->length;
- }
- if (ptr->flags & FD_RAW_WRITE) {
- ret = fd_copyin(ptr->data, ptr->kernel_data,
- ptr->length);
- if (ret)
- return ret;
- }
+ if (ptr->flags & FD_RAW_MORE) {
rcmd = &(ptr->next);
- if (!(ptr->flags & FD_RAW_MORE))
- return 0;
ptr->rate &= 0x43;
+ goto loop;
}
+
+ return 0;
}
static int raw_cmd_ioctl(int cmd, void __user *param)
static int fd_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd,
unsigned long param)
{
-#define FD_IOCTL_ALLOWED (mode & (FMODE_WRITE|FMODE_WRITE_IOCTL))
-
int drive = (long)bdev->bd_disk->private_data;
int type = ITYPE(UDRS->fd_device);
int i;
struct floppy_max_errors max_errors;
struct floppy_drive_params dp;
} inparam; /* parameters coming from user space */
- const char *outparam; /* parameters passed back to user space */
+ const void *outparam; /* parameters passed back to user space */
/* convert compatibility eject ioctls into floppy eject ioctl.
* We do this in order to provide a means to eject floppy disks before
return ret;
/* permission checks */
- if (((cmd & 0x40) && !FD_IOCTL_ALLOWED) ||
+ if (((cmd & 0x40) && !(mode & (FMODE_WRITE | FMODE_WRITE_IOCTL))) ||
((cmd & 0x80) && !capable(CAP_SYS_ADMIN)))
return -EPERM;
return set_geometry(cmd, &inparam.g, drive, type, bdev);
case FDGETPRM:
ret = get_floppy_geometry(drive, type,
- (struct floppy_struct **)
- &outparam);
+ (struct floppy_struct **)&outparam);
if (ret)
return ret;
break;
UDP->max_errors.reporting = (unsigned short)(param & 0x0f);
return 0;
case FDGETMAXERRS:
- outparam = (const char *)&UDP->max_errors;
+ outparam = &UDP->max_errors;
break;
case FDSETMAXERRS:
UDP->max_errors = inparam.max_errors;
break;
case FDGETDRVTYP:
outparam = drive_name(type, drive);
- SUPBOUND(size, strlen(outparam) + 1);
+ SUPBOUND(size, strlen((const char *)outparam) + 1);
break;
case FDSETDRVPRM:
*UDP = inparam.dp;
break;
case FDGETDRVPRM:
- outparam = (const char *)UDP;
+ outparam = UDP;
break;
case FDPOLLDRVSTAT:
if (lock_fdc(drive, true))
process_fd_request();
/* fall through */
case FDGETDRVSTAT:
- outparam = (const char *)UDRS;
+ outparam = UDRS;
break;
case FDRESET:
return user_reset_fdc(drive, (int)param, true);
case FDGETFDCSTAT:
- outparam = (const char *)UFDCS;
+ outparam = UFDCS;
break;
case FDWERRORCLR:
memset(UDRWE, 0, sizeof(*UDRWE));
return 0;
case FDWERRORGET:
- outparam = (const char *)UDRWE;
+ outparam = UDRWE;
break;
case FDRAWCMD:
if (type)
else
floppy_sizes[i] = MAX_DISK_SIZE << 1;
- reschedule_timeout(MAXTIMEOUT, "floppy init", MAXTIMEOUT);
+ reschedule_timeout(MAXTIMEOUT, "floppy init");
config_types();
for (i = 0; i < N_FDC; i++) {
static void floppy_release_irq_and_dma(void)
{
int old_fdc;
-#ifdef FLOPPY_SANITY_CHECK
#ifndef __sparc__
int drive;
#endif
-#endif
long tmpsize;
unsigned long tmpaddr;
unsigned long flags;
buffer_min = buffer_max = -1;
fd_dma_mem_free(tmpaddr, tmpsize);
}
-#ifdef FLOPPY_SANITY_CHECK
#ifndef __sparc__
for (drive = 0; drive < N_FDC * 4; drive++)
if (timer_pending(motor_off_timer + drive))
pr_info("auxiliary floppy timer still active\n");
if (work_pending(&floppy_work))
pr_info("work still pending\n");
-#endif
old_fdc = fdc;
for (fdc = 0; fdc < N_FDC; fdc++)
if (FDCS->address != -1)
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff