static int ioctl_internal_command(struct scsi_device *sdev, char *cmd,
int timeout, int retries)
{
struct scsi_request *sreq;
int result;
SCSI_LOG_IOCTL(1, printk("Trying ioctl with scsi command %d\n", *cmd));
sreq = scsi_allocate_request(sdev, GFP_KERNEL);
if (!sreq) {
printk("SCSI internal ioctl failed, no memory\n");
return -ENOMEM;
}
sreq->sr_data_direction = DMA_NONE;
scsi_wait_req(sreq, cmd, NULL, 0, timeout, retries);
SCSI_LOG_IOCTL(2, printk("Ioctl returned 0x%x\n", sreq->sr_result));
if (driver_byte(sreq->sr_result)) {
switch (sreq->sr_sense_buffer[2] & 0xf) {
case ILLEGAL_REQUEST:
if (cmd[0] == ALLOW_MEDIUM_REMOVAL)
sdev->lockable = 0;
else
printk("SCSI device (ioctl) reports ILLEGAL REQUEST.\n");
break;
case NOT_READY: /* This happens if there is no disc in drive */
if (sdev->removable && (cmd[0] != TEST_UNIT_READY)) {
printk(KERN_INFO "Device not ready. Make sure there is a disc in the drive.\n");
break;
}
case UNIT_ATTENTION:
if (sdev->removable) {
sdev->changed = 1;
sreq->sr_result = 0; /* This is no longer considered an error */
break;
}
default: /* Fall through for non-removable media */
printk("SCSI error: host %d id %d lun %d return code = %x\n",
sdev->host->host_no,
sdev->id,
sdev->lun,
sreq->sr_result);
printk("\tSense class %x, sense error %x, extended sense %x\n",
sense_class(sreq->sr_sense_buffer[0]),
sense_error(sreq->sr_sense_buffer[0]),
sreq->sr_sense_buffer[2] & 0xf);
}
}
result = sreq->sr_result;
SCSI_LOG_IOCTL(2, printk("IOCTL Releasing command\n"));
scsi_release_request(sreq);
return result;
}
static int ioctl_internal_command(Scsi_Device *dev, char * cmd,
int timeout, int retries)
{
int result;
Scsi_Cmnd * SCpnt;
SCpnt = allocate_device(NULL, dev, 1);
{
struct semaphore sem = MUTEX_LOCKED;
SCpnt->request.sem = &sem;
scsi_do_cmd(SCpnt, cmd, NULL, 0, scsi_ioctl_done, timeout, retries);
down(&sem);
}
if(driver_byte(SCpnt->result) != 0)
switch(SCpnt->sense_buffer[2] & 0xf) {
case ILLEGAL_REQUEST:
if(cmd[0] == ALLOW_MEDIUM_REMOVAL) dev->lockable = 0;
else printk("SCSI device (ioctl) reports ILLEGAL REQUEST.\n");
break;
case NOT_READY: /* This happens if there is no disc in drive */
if(dev->removable){
printk(KERN_INFO "Device not ready. Make sure there is a disc in the drive.\n");
break;
};
case UNIT_ATTENTION:
if (dev->removable){
dev->changed = 1;
SCpnt->result = 0; /* This is no longer considered an error */
printk(KERN_INFO "Disc change detected.\n");
break;
};
default: /* Fall through for non-removable media */
printk("SCSI error: host %d id %d lun %d return code = %x\n",
dev->host->host_no,
dev->id,
dev->lun,
SCpnt->result);
printk("\tSense class %x, sense error %x, extended sense %x\n",
sense_class(SCpnt->sense_buffer[0]),
sense_error(SCpnt->sense_buffer[0]),
SCpnt->sense_buffer[2] & 0xf);
};
result = SCpnt->result;
SCpnt->request.rq_status = RQ_INACTIVE;
if (!SCpnt->device->was_reset && SCpnt->device->scsi_request_fn)
(*SCpnt->device->scsi_request_fn)();
wake_up(&SCpnt->device->device_wait);
return result;
}
static int ioctl_internal_command(Scsi_Device *dev, char * cmd)
{
int host, result;
Scsi_Cmnd * SCpnt;
host = dev->host_no;
SCpnt = allocate_device(NULL, dev->index, 1);
scsi_do_cmd(SCpnt, cmd, NULL, 0,
scsi_ioctl_done, MAX_TIMEOUT,
MAX_RETRIES);
if (SCpnt->request.dev != 0xfffe){
SCpnt->request.waiting = current;
current->state = TASK_UNINTERRUPTIBLE;
while (SCpnt->request.dev != 0xfffe) schedule();
};
if(driver_byte(SCpnt->result) != 0)
switch(SCpnt->sense_buffer[2] & 0xf) {
case ILLEGAL_REQUEST:
if(cmd[0] == ALLOW_MEDIUM_REMOVAL) dev->lockable = 0;
else printk("SCSI device (ioctl) reports ILLEGAL REQUEST.\n");
break;
case NOT_READY: /* This happens if there is no disc in drive */
if(dev->removable){
printk("Device not ready. Make sure there is a disc in the drive.\n");
break;
};
case UNIT_ATTENTION:
if (dev->removable){
dev->changed = 1;
SCpnt->result = 0; /* This is no longer considered an error */
printk("Disc change detected.\n");
break;
};
default: /* Fall through for non-removable media */
printk("SCSI CD error: host %d id %d lun %d return code = %x\n",
dev->host_no,
dev->id,
dev->lun,
SCpnt->result);
printk("\tSense class %x, sense error %x, extended sense %x\n",
sense_class(SCpnt->sense_buffer[0]),
sense_error(SCpnt->sense_buffer[0]),
SCpnt->sense_buffer[2] & 0xf);
};
result = SCpnt->result;
SCpnt->request.dev = -1; /* Mark as not busy */
wake_up(&scsi_devices[SCpnt->index].device_wait);
return result;
}
static int do_ioctl( void )
{
int retries = IOCTL_RETRIES;
retry:
the_result = -1;
scsi_do_cmd(scsi_CDs[target].device->host_no, scsi_CDs[target].device->id,
(void *) sr_cmd, (void *) data_buffer, 255, sr_ioctl_done,
IOCTL_TIMEOUT, (void *) sense_buffer, 0);
while (the_result < 0) sleep_on(&sr_cmd_wait);
if(driver_byte(the_result) != 0 &&
(sense_buffer[2] & 0xf) == UNIT_ATTENTION) {
scsi_CDs[target].changed = 1;
printk("Disc change detected.\n");
};
if (the_result && retries)
{
retries--;
goto retry;
}
/* Minimal error checking. Ignore cases we know about, and report the rest. */
if(driver_byte(the_result) != 0)
switch(sense_buffer[2] & 0xf) {
case UNIT_ATTENTION:
scsi_CDs[target].changed = 1;
printk("Disc change detected.\n");
break;
case NOT_READY: /* This happens if there is no disc in drive */
printk("CDROM not ready. Make sure there is a disc in the drive.\n");
break;
case ILLEGAL_REQUEST:
printk("CDROM (ioctl) reports ILLEGAL REQUEST.\n");
break;
default:
printk("SCSI CD error: host %d id %d lun %d return code = %03x\n",
scsi_CDs[target].device->host_no,
scsi_CDs[target].device->id,
scsi_CDs[target].device->lun,
the_result);
printk("\tSense class %x, sense error %x, extended sense %x\n",
sense_class(sense_buffer[0]),
sense_error(sense_buffer[0]),
sense_buffer[2] & 0xf);
};
return the_result;
}
static int do_ioctl(int target, unsigned char * sr_cmd, void * buffer, unsigned buflength)
{
Scsi_Cmnd * SCpnt;
int result;
SCpnt = allocate_device(NULL, scsi_CDs[target].device->index, 1);
scsi_do_cmd(SCpnt,
(void *) sr_cmd, buffer, buflength, sr_ioctl_done,
IOCTL_TIMEOUT, IOCTL_RETRIES);
if (SCpnt->request.dev != 0xfffe) {
SCpnt->request.waiting = current;
current->state = TASK_UNINTERRUPTIBLE;
while (SCpnt->request.dev != 0xfffe) schedule();
};
result = SCpnt->result;
/* Minimal error checking. Ignore cases we know about, and report the rest. */
if(driver_byte(result) != 0)
switch(SCpnt->sense_buffer[2] & 0xf) {
case UNIT_ATTENTION:
scsi_CDs[target].device->changed = 1;
printk("Disc change detected.\n");
break;
case NOT_READY: /* This happens if there is no disc in drive */
printk("CDROM not ready. Make sure there is a disc in the drive.\n");
break;
case ILLEGAL_REQUEST:
printk("CDROM (ioctl) reports ILLEGAL REQUEST.\n");
break;
default:
printk("SCSI CD error: host %d id %d lun %d return code = %03x\n",
scsi_CDs[target].device->host_no,
scsi_CDs[target].device->id,
scsi_CDs[target].device->lun,
result);
printk("\tSense class %x, sense error %x, extended sense %x\n",
sense_class(SCpnt->sense_buffer[0]),
sense_error(SCpnt->sense_buffer[0]),
SCpnt->sense_buffer[2] & 0xf);
};
result = SCpnt->result;
SCpnt->request.dev = -1; /* Deallocate */
wake_up(&scsi_devices[SCpnt->index].device_wait);
/* Wake up a process waiting for device*/
return result;
}
static int ioctl_internal_command(Scsi_Device * dev, char *cmd,
int timeout, int retries)
{
int result;
Scsi_Request *SRpnt;
Scsi_Device *SDpnt;
SCSI_LOG_IOCTL(1, printk("Trying ioctl with scsi command %d\n", cmd[0]));
if (NULL == (SRpnt = scsi_allocate_request(dev))) {
printk("SCSI internal ioctl failed, no memory\n");
return -ENOMEM;
}
SRpnt->sr_data_direction = SCSI_DATA_NONE;
scsi_wait_req(SRpnt, cmd, NULL, 0, timeout, retries);
SCSI_LOG_IOCTL(2, printk("Ioctl returned 0x%x\n", SRpnt->sr_result));
if (driver_byte(SRpnt->sr_result) != 0)
switch (SRpnt->sr_sense_buffer[2] & 0xf) {
case ILLEGAL_REQUEST:
if (cmd[0] == ALLOW_MEDIUM_REMOVAL)
dev->lockable = 0;
else
printk("SCSI device (ioctl) reports ILLEGAL REQUEST.\n");
break;
case NOT_READY: /* This happens if there is no disc in drive */
if (dev->removable && (cmd[0] != TEST_UNIT_READY)) {
printk(KERN_INFO "Device not ready. Make sure there is a disc in the drive.\n");
break;
}
case UNIT_ATTENTION:
if (dev->removable) {
dev->changed = 1;
SRpnt->sr_result = 0; /* This is no longer considered an error */
/* gag this error, VFS will log it anyway /axboe */
/* printk(KERN_INFO "Disc change detected.\n"); */
break;
};
default: /* Fall through for non-removable media */
printk("SCSI error: host %d id %d lun %d return code = %x\n",
dev->host->host_no,
dev->id,
dev->lun,
SRpnt->sr_result);
printk("\tSense class %x, sense error %x, extended sense %x\n",
sense_class(SRpnt->sr_sense_buffer[0]),
sense_error(SRpnt->sr_sense_buffer[0]),
SRpnt->sr_sense_buffer[2] & 0xf);
};
result = SRpnt->sr_result;
SCSI_LOG_IOCTL(2, printk("IOCTL Releasing command\n"));
SDpnt = SRpnt->sr_device;
scsi_release_request(SRpnt);
SRpnt = NULL;
return result;
}
static int ioctl_internal_command(Scsi_Device *dev, char * cmd,
int timeout, int retries)
{
unsigned long flags;
int result;
Scsi_Cmnd * SCpnt;
Scsi_Device * SDpnt;
spin_lock_irqsave(&io_request_lock, flags);
SCSI_LOG_IOCTL(1, printk("Trying ioctl with scsi command %d\n", cmd[0]));
SCpnt = scsi_allocate_device(NULL, dev, 1);
{
struct semaphore sem = MUTEX_LOCKED;
SCpnt->request.sem = &sem;
scsi_do_cmd(SCpnt, cmd, NULL, 0, scsi_ioctl_done, timeout, retries);
spin_unlock_irqrestore(&io_request_lock, flags);
down(&sem);
spin_lock_irqsave(&io_request_lock, flags);
SCpnt->request.sem = NULL;
}
SCSI_LOG_IOCTL(2, printk("Ioctl returned 0x%x\n", SCpnt->result));
if(driver_byte(SCpnt->result) != 0)
switch(SCpnt->sense_buffer[2] & 0xf) {
case ILLEGAL_REQUEST:
if(cmd[0] == ALLOW_MEDIUM_REMOVAL) dev->lockable = 0;
else printk("SCSI device (ioctl) reports ILLEGAL REQUEST.\n");
break;
case NOT_READY: /* This happens if there is no disc in drive */
if(dev->removable && (cmd[0] != TEST_UNIT_READY)){
printk(KERN_INFO "Device not ready. Make sure there is a disc in the drive.\n");
break;
}
case UNIT_ATTENTION:
if (dev->removable){
dev->changed = 1;
SCpnt->result = 0; /* This is no longer considered an error */
/* gag this error, VFS will log it anyway /axboe */
/* printk(KERN_INFO "Disc change detected.\n"); */
break;
};
default: /* Fall through for non-removable media */
printk("SCSI error: host %d id %d lun %d return code = %x\n",
dev->host->host_no,
dev->id,
dev->lun,
SCpnt->result);
printk("\tSense class %x, sense error %x, extended sense %x\n",
sense_class(SCpnt->sense_buffer[0]),
sense_error(SCpnt->sense_buffer[0]),
SCpnt->sense_buffer[2] & 0xf);
};
result = SCpnt->result;
SCSI_LOG_IOCTL(2, printk("IOCTL Releasing command\n"));
SDpnt = SCpnt->device;
scsi_release_command(SCpnt);
SCpnt = NULL;
if (!SDpnt->was_reset && SDpnt->scsi_request_fn)
(*SDpnt->scsi_request_fn)();
wake_up(&SDpnt->device_wait);
spin_unlock_irqrestore(&io_request_lock, flags);
return result;
}
