/*
* Medium sense for 34xx tapes. There is no 'real' medium sense call.
* So we just do a normal sense.
*/
static void __tape_34xx_medium_sense(struct tape_request *request)
{
struct tape_device *device = request->device;
unsigned char *sense;
if (request->rc == 0) {
sense = request->cpdata;
/*
* This isn't quite correct. But since INTERVENTION_REQUIRED
* means that the drive is 'neither ready nor on-line' it is
* only slightly inaccurate to say there is no tape loaded if
* the drive isn't online...
*/
if (sense[0] & SENSE_INTERVENTION_REQUIRED)
tape_med_state_set(device, MS_UNLOADED);
else
tape_med_state_set(device, MS_LOADED);
if (sense[1] & SENSE_WRITE_PROTECT)
device->tape_generic_status |= GMT_WR_PROT(~0);
else
device->tape_generic_status &= ~GMT_WR_PROT(~0);
} else
DBF_EVENT(4, "tape_34xx: medium sense failed with rc=%d\n",
request->rc);
tape_free_request(request);
}
/*
* Medium sense for 34xx tapes. There is no 'real' medium sense call.
* So we just do a normal sense.
*/
static int
tape_34xx_medium_sense(struct tape_device *device)
{
struct tape_request *request;
unsigned char *sense;
int rc;
request = tape_alloc_request(1, 32);
if (IS_ERR(request)) {
DBF_EXCEPTION(6, "MSEN fail\n");
return PTR_ERR(request);
}
request->op = TO_MSEN;
tape_ccw_end(request->cpaddr, SENSE, 32, request->cpdata);
rc = tape_do_io_interruptible(device, request);
if (request->rc == 0) {
sense = request->cpdata;
/*
* This isn't quite correct. But since INTERVENTION_REQUIRED
* means that the drive is 'neither ready nor on-line' it is
* only slightly inaccurate to say there is no tape loaded if
* the drive isn't online...
*/
if (sense[0] & SENSE_INTERVENTION_REQUIRED)
tape_med_state_set(device, MS_UNLOADED);
else
tape_med_state_set(device, MS_LOADED);
if (sense[1] & SENSE_WRITE_PROTECT)
device->tape_generic_status |= GMT_WR_PROT(~0);
else
device->tape_generic_status &= ~GMT_WR_PROT(~0);
} else {
DBF_EVENT(4, "tape_34xx: medium sense failed with rc=%d\n",
request->rc);
}
tape_free_request(request);
return rc;
}
/*
* Query KEKLs
*/
static int tape_3592_kekl_query(struct tape_device *device,
struct tape390_kekl_pair *ext_kekls)
{
struct tape_request *request;
struct tape3592_kekl_query_order *order;
struct tape3592_kekl_query_data *int_kekls;
int rc;
DBF_EVENT(6, "tape3592_kekl_query\n");
int_kekls = kmalloc(sizeof(*int_kekls), GFP_KERNEL|GFP_DMA);
if (!int_kekls)
return -ENOMEM;
request = tape_alloc_request(2, sizeof(*order));
if (IS_ERR(request)) {
rc = PTR_ERR(request);
goto fail_malloc;
}
order = request->cpdata;
memset(order,0,sizeof(*order));
order->code = 0xe2;
order->max_count = 2;
request->op = TO_KEKL_QUERY;
tape_ccw_cc(request->cpaddr, PERF_SUBSYS_FUNC, sizeof(*order), order);
tape_ccw_end(request->cpaddr + 1, READ_SS_DATA, sizeof(*int_kekls),
int_kekls);
rc = tape_do_io(device, request);
if (rc)
goto fail_request;
int_to_ext_kekl_pair(&int_kekls->kekls, ext_kekls);
rc = 0;
fail_request:
tape_free_request(request);
fail_malloc:
kfree(int_kekls);
return rc;
}