diff options
Diffstat (limited to 'drivers/ide/ide-tape.c')
| -rw-r--r-- | drivers/ide/ide-tape.c | 624 |
1 files changed, 183 insertions, 441 deletions
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index 3833189144e..b2b2e5e8d38 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -15,6 +15,8 @@ * Documentation/ide/ChangeLog.ide-tape.1995-2002 */ +#define DRV_NAME "ide-tape" + #define IDETAPE_VERSION "1.20" #include <linux/module.h> @@ -54,8 +56,6 @@ enum { DBG_CHRDEV = (1 << 2), /* all remaining procedures */ DBG_PROCS = (1 << 3), - /* buffer alloc info (pc_stack & rq_stack) */ - DBG_PCRQ_STACK = (1 << 4), }; /* define to see debug info */ @@ -81,26 +81,6 @@ enum { #define IDETAPE_MAX_PC_RETRIES 3 /* - * With each packet command, we allocate a buffer of IDETAPE_PC_BUFFER_SIZE - * bytes. This is used for several packet commands (Not for READ/WRITE commands) - */ -#define IDETAPE_PC_BUFFER_SIZE 256 - -/* - * In various places in the driver, we need to allocate storage - * for packet commands and requests, which will remain valid while - * we leave the driver to wait for an interrupt or a timeout event. - */ -#define IDETAPE_PC_STACK (10 + IDETAPE_MAX_PC_RETRIES) - -/* - * Some drives (for example, Seagate STT3401A Travan) require a very long - * timeout, because they don't return an interrupt or clear their busy bit - * until after the command completes (even retension commands). - */ -#define IDETAPE_WAIT_CMD (900*HZ) - -/* * The following parameter is used to select the point in the internal tape fifo * in which we will start to refill the buffer. Decreasing the following * parameter will improve the system's latency and interactive response, while @@ -172,20 +152,6 @@ struct idetape_bh { #define IDETAPE_LU_RETENSION_MASK 2 #define IDETAPE_LU_EOT_MASK 4 -/* - * Special requests for our block device strategy routine. - * - * In order to service a character device command, we add special requests to - * the tail of our block device request queue and wait for their completion. - */ - -enum { - REQ_IDETAPE_PC1 = (1 << 0), /* packet command (first stage) */ - REQ_IDETAPE_PC2 = (1 << 1), /* packet command (second stage) */ - REQ_IDETAPE_READ = (1 << 2), - REQ_IDETAPE_WRITE = (1 << 3), -}; - /* Error codes returned in rq->errors to the higher part of the driver. */ #define IDETAPE_ERROR_GENERAL 101 #define IDETAPE_ERROR_FILEMARK 102 @@ -206,31 +172,15 @@ typedef struct ide_tape_obj { struct kref kref; /* - * Since a typical character device operation requires more - * than one packet command, we provide here enough memory - * for the maximum of interconnected packet commands. - * The packet commands are stored in the circular array pc_stack. - * pc_stack_index points to the last used entry, and warps around - * to the start when we get to the last array entry. - * - * pc points to the current processed packet command. - * * failed_pc points to the last failed packet command, or contains * NULL if we do not need to retry any packet command. This is * required since an additional packet command is needed before the * retry, to get detailed information on what went wrong. */ - /* Current packet command */ - struct ide_atapi_pc *pc; /* Last failed packet command */ struct ide_atapi_pc *failed_pc; - /* Packet command stack */ - struct ide_atapi_pc pc_stack[IDETAPE_PC_STACK]; - /* Next free packet command storage space */ - int pc_stack_index; - struct request rq_stack[IDETAPE_PC_STACK]; - /* We implement a circular array */ - int rq_stack_index; + /* used by REQ_IDETAPE_{READ,WRITE} requests */ + struct ide_atapi_pc queued_pc; /* * DSC polling variables. @@ -317,11 +267,6 @@ static DEFINE_MUTEX(idetape_ref_mutex); static struct class *idetape_sysfs_class; -#define to_ide_tape(obj) container_of(obj, struct ide_tape_obj, kref) - -#define ide_tape_g(disk) \ - container_of((disk)->private_data, struct ide_tape_obj, driver) - static void ide_tape_release(struct kref *); static struct ide_tape_obj *ide_tape_get(struct gendisk *disk) @@ -329,7 +274,7 @@ static struct ide_tape_obj *ide_tape_get(struct gendisk *disk) struct ide_tape_obj *tape = NULL; mutex_lock(&idetape_ref_mutex); - tape = ide_tape_g(disk); + tape = ide_drv_g(disk, ide_tape_obj); if (tape) { if (ide_device_get(tape->drive)) tape = NULL; @@ -356,8 +301,6 @@ static void ide_tape_put(struct ide_tape_obj *tape) */ static struct ide_tape_obj *idetape_devs[MAX_HWIFS * MAX_DRIVES]; -#define ide_tape_f(file) ((file)->private_data) - static struct ide_tape_obj *ide_tape_chrdev_get(unsigned int i) { struct ide_tape_obj *tape = NULL; @@ -451,47 +394,6 @@ static void idetape_update_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc) } /* - * idetape_next_pc_storage returns a pointer to a place in which we can - * safely store a packet command, even though we intend to leave the - * driver. A storage space for a maximum of IDETAPE_PC_STACK packet - * commands is allocated at initialization time. - */ -static struct ide_atapi_pc *idetape_next_pc_storage(ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - - debug_log(DBG_PCRQ_STACK, "pc_stack_index=%d\n", tape->pc_stack_index); - - if (tape->pc_stack_index == IDETAPE_PC_STACK) - tape->pc_stack_index = 0; - return (&tape->pc_stack[tape->pc_stack_index++]); -} - -/* - * idetape_next_rq_storage is used along with idetape_next_pc_storage. - * Since we queue packet commands in the request queue, we need to - * allocate a request, along with the allocation of a packet command. - */ - -/************************************************************** - * * - * This should get fixed to use kmalloc(.., GFP_ATOMIC) * - * followed later on by kfree(). -ml * - * * - **************************************************************/ - -static struct request *idetape_next_rq_storage(ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - - debug_log(DBG_PCRQ_STACK, "rq_stack_index=%d\n", tape->rq_stack_index); - - if (tape->rq_stack_index == IDETAPE_PC_STACK) - tape->rq_stack_index = 0; - return (&tape->rq_stack[tape->rq_stack_index++]); -} - -/* * called on each failed packet command retry to analyze the request sense. We * currently do not utilize this information. */ @@ -606,14 +508,19 @@ static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects) return 0; } -static void ide_tape_callback(ide_drive_t *drive) +static void ide_tape_handle_dsc(ide_drive_t *); + +static void ide_tape_callback(ide_drive_t *drive, int dsc) { idetape_tape_t *tape = drive->driver_data; - struct ide_atapi_pc *pc = tape->pc; + struct ide_atapi_pc *pc = drive->pc; int uptodate = pc->error ? 0 : 1; debug_log(DBG_PROCS, "Enter %s\n", __func__); + if (dsc) + ide_tape_handle_dsc(drive); + if (tape->failed_pc == pc) tape->failed_pc = NULL; @@ -642,7 +549,7 @@ static void ide_tape_callback(ide_drive_t *drive) if (pc->error) uptodate = pc->error; } else if (pc->c[0] == READ_POSITION && uptodate) { - u8 *readpos = tape->pc->buf; + u8 *readpos = pc->buf; debug_log(DBG_SENSE, "BOP - %s\n", (readpos[0] & 0x80) ? "Yes" : "No"); @@ -667,79 +574,6 @@ static void ide_tape_callback(ide_drive_t *drive) idetape_end_request(drive, uptodate, 0); } -static void idetape_init_pc(struct ide_atapi_pc *pc) -{ - memset(pc->c, 0, 12); - pc->retries = 0; - pc->flags = 0; - pc->req_xfer = 0; - pc->buf = pc->pc_buf; - pc->buf_size = IDETAPE_PC_BUFFER_SIZE; - pc->bh = NULL; - pc->b_data = NULL; -} - -static void idetape_create_request_sense_cmd(struct ide_atapi_pc *pc) -{ - idetape_init_pc(pc); - pc->c[0] = REQUEST_SENSE; - pc->c[4] = 20; - pc->req_xfer = 20; -} - -static void idetape_init_rq(struct request *rq, u8 cmd) -{ - blk_rq_init(NULL, rq); - rq->cmd_type = REQ_TYPE_SPECIAL; - rq->cmd[13] = cmd; -} - -/* - * Generate a new packet command request in front of the request queue, before - * the current request, so that it will be processed immediately, on the next - * pass through the driver. The function below is called from the request - * handling part of the driver (the "bottom" part). Safe storage for the request - * should be allocated with ide_tape_next_{pc,rq}_storage() prior to that. - * - * Memory for those requests is pre-allocated at initialization time, and is - * limited to IDETAPE_PC_STACK requests. We assume that we have enough space for - * the maximum possible number of inter-dependent packet commands. - * - * The higher level of the driver - The ioctl handler and the character device - * handling functions should queue request to the lower level part and wait for - * their completion using idetape_queue_pc_tail or idetape_queue_rw_tail. - */ -static void idetape_queue_pc_head(ide_drive_t *drive, struct ide_atapi_pc *pc, - struct request *rq) -{ - struct ide_tape_obj *tape = drive->driver_data; - - idetape_init_rq(rq, REQ_IDETAPE_PC1); - rq->cmd_flags |= REQ_PREEMPT; - rq->buffer = (char *) pc; - rq->rq_disk = tape->disk; - memcpy(rq->cmd, pc->c, 12); - ide_do_drive_cmd(drive, rq); -} - -/* - * idetape_retry_pc is called when an error was detected during the - * last packet command. We queue a request sense packet command in - * the head of the request list. - */ -static void idetape_retry_pc(ide_drive_t *drive) -{ - struct ide_atapi_pc *pc; - struct request *rq; - - (void)ide_read_error(drive); - pc = idetape_next_pc_storage(drive); - rq = idetape_next_rq_storage(drive); - idetape_create_request_sense_cmd(pc); - set_bit(IDE_AFLAG_IGNORE_DSC, &drive->atapi_flags); - idetape_queue_pc_head(drive, pc, rq); -} - /* * Postpone the current request so that ide.c will be able to service requests * from another device on the same hwgroup while we are polling for DSC. @@ -766,44 +600,30 @@ static void ide_tape_handle_dsc(ide_drive_t *drive) idetape_postpone_request(drive); } -static void ide_tape_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, +static int ide_tape_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, unsigned int bcount, int write) { if (write) idetape_output_buffers(drive, pc, bcount); else idetape_input_buffers(drive, pc, bcount); -} - -/* - * This is the usual interrupt handler which will be called during a packet - * command. We will transfer some of the data (as requested by the drive) and - * will re-point interrupt handler to us. When data transfer is finished, we - * will act according to the algorithm described before - * idetape_issue_pc. - */ -static ide_startstop_t idetape_pc_intr(ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - return ide_pc_intr(drive, tape->pc, idetape_pc_intr, IDETAPE_WAIT_CMD, - NULL, idetape_update_buffers, idetape_retry_pc, - ide_tape_handle_dsc, ide_tape_io_buffers); + return bcount; } /* * Packet Command Interface * - * The current Packet Command is available in tape->pc, and will not change + * The current Packet Command is available in drive->pc, and will not change * until we finish handling it. Each packet command is associated with a * callback function that will be called when the command is finished. * * The handling will be done in three stages: * * 1. idetape_issue_pc will send the packet command to the drive, and will set - * the interrupt handler to idetape_pc_intr. + * the interrupt handler to ide_pc_intr. * - * 2. On each interrupt, idetape_pc_intr will be called. This step will be + * 2. On each interrupt, ide_pc_intr will be called. This step will be * repeated until the device signals us that no more interrupts will be issued. * * 3. ATAPI Tape media access commands have immediate status with a delayed @@ -827,20 +647,13 @@ static ide_startstop_t idetape_pc_intr(ide_drive_t *drive) * again, the callback function will be called and then we will handle the next * request. */ -static ide_startstop_t idetape_transfer_pc(ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - - return ide_transfer_pc(drive, tape->pc, idetape_pc_intr, - IDETAPE_WAIT_CMD, NULL); -} static ide_startstop_t idetape_issue_pc(ide_drive_t *drive, struct ide_atapi_pc *pc) { idetape_tape_t *tape = drive->driver_data; - if (tape->pc->c[0] == REQUEST_SENSE && + if (drive->pc->c[0] == REQUEST_SENSE && pc->c[0] == REQUEST_SENSE) { printk(KERN_ERR "ide-tape: possible ide-tape.c bug - " "Two request sense in serial were issued\n"); @@ -848,8 +661,9 @@ static ide_startstop_t idetape_issue_pc(ide_drive_t *drive, if (tape->failed_pc == NULL && pc->c[0] != REQUEST_SENSE) tape->failed_pc = pc; + /* Set the current packet command */ - tape->pc = pc; + drive->pc = pc; if (pc->retries > IDETAPE_MAX_PC_RETRIES || (pc->flags & PC_FLAG_ABORT)) { @@ -873,21 +687,20 @@ static ide_startstop_t idetape_issue_pc(ide_drive_t *drive, pc->error = IDETAPE_ERROR_GENERAL; } tape->failed_pc = NULL; - drive->pc_callback(drive); + drive->pc_callback(drive, 0); return ide_stopped; } debug_log(DBG_SENSE, "Retry #%d, cmd = %02X\n", pc->retries, pc->c[0]); pc->retries++; - return ide_issue_pc(drive, pc, idetape_transfer_pc, - IDETAPE_WAIT_CMD, NULL); + return ide_issue_pc(drive, WAIT_TAPE_CMD, NULL); } /* A mode sense command is used to "sense" tape parameters. */ static void idetape_create_mode_sense_cmd(struct ide_atapi_pc *pc, u8 page_code) { - idetape_init_pc(pc); + ide_init_pc(pc); pc->c[0] = MODE_SENSE; if (page_code != IDETAPE_BLOCK_DESCRIPTOR) /* DBD = 1 - Don't return block descriptors */ @@ -915,19 +728,19 @@ static ide_startstop_t idetape_media_access_finished(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; idetape_tape_t *tape = drive->driver_data; - struct ide_atapi_pc *pc = tape->pc; + struct ide_atapi_pc *pc = drive->pc; u8 stat; stat = hwif->tp_ops->read_status(hwif); - if (stat & SEEK_STAT) { - if (stat & ERR_STAT) { + if (stat & ATA_DSC) { + if (stat & ATA_ERR) { /* Error detected */ if (pc->c[0] != TEST_UNIT_READY) printk(KERN_ERR "ide-tape: %s: I/O error, ", tape->name); /* Retry operation */ - idetape_retry_pc(drive); + ide_retry_pc(drive, tape->disk); return ide_stopped; } pc->error = 0; @@ -935,7 +748,7 @@ static ide_startstop_t idetape_media_access_finished(ide_drive_t *drive) pc->error = IDETAPE_ERROR_GENERAL; tape->failed_pc = NULL; } - drive->pc_callback(drive); + drive->pc_callback(drive, 0); return ide_stopped; } @@ -946,7 +759,7 @@ static void ide_tape_create_rw_cmd(idetape_tape_t *tape, struct idetape_bh *bh = (struct idetape_bh *)rq->special; unsigned int length = rq->current_nr_sectors; - idetape_init_pc(pc); + ide_init_pc(pc); put_unaligned(cpu_to_be32(length), (unsigned int *) &pc->c[1]); pc->c[1] = 1; pc->bh = bh; @@ -978,9 +791,10 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, struct request *postponed_rq = tape->postponed_rq; u8 stat; - debug_log(DBG_SENSE, "sector: %ld, nr_sectors: %ld," - " current_nr_sectors: %d\n", - rq->sector, rq->nr_sectors, rq->current_nr_sectors); + debug_log(DBG_SENSE, "sector: %llu, nr_sectors: %lu," + " current_nr_sectors: %u\n", + (unsigned long long)rq->sector, rq->nr_sectors, + rq->current_nr_sectors); if (!blk_special_request(rq)) { /* We do not support buffer cache originated requests. */ @@ -991,7 +805,7 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, } /* Retry a failed packet command */ - if (tape->failed_pc && tape->pc->c[0] == REQUEST_SENSE) { + if (tape->failed_pc && drive->pc->c[0] == REQUEST_SENSE) { pc = tape->failed_pc; goto out; } @@ -1012,16 +826,17 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, */ stat = hwif->tp_ops->read_status(hwif); - if (!drive->dsc_overlap && !(rq->cmd[13] & REQ_IDETAPE_PC2)) + if ((drive->dev_flags & IDE_DFLAG_DSC_OVERLAP) == 0 && + (rq->cmd[13] & REQ_IDETAPE_PC2) == 0) set_bit(IDE_AFLAG_IGNORE_DSC, &drive->atapi_flags); - if (drive->post_reset == 1) { + if (drive->dev_flags & IDE_DFLAG_POST_RESET) { set_bit(IDE_AFLAG_IGNORE_DSC, &drive->atapi_flags); - drive->post_reset = 0; + drive->dev_flags &= ~IDE_DFLAG_POST_RESET; } if (!test_and_clear_bit(IDE_AFLAG_IGNORE_DSC, &drive->atapi_flags) && - (stat & SEEK_STAT) == 0) { + (stat & ATA_DSC) == 0) { if (postponed_rq == NULL) { tape->dsc_polling_start = jiffies; tape->dsc_poll_freq = tape->best_dsc_rw_freq; @@ -1043,12 +858,12 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, return ide_stopped; } if (rq->cmd[13] & REQ_IDETAPE_READ) { - pc = idetape_next_pc_storage(drive); + pc = &tape->queued_pc; ide_tape_create_rw_cmd(tape, pc, rq, READ_6); goto out; } if (rq->cmd[13] & REQ_IDETAPE_WRITE) { - pc = idetape_next_pc_storage(drive); + pc = &tape->queued_pc; ide_tape_create_rw_cmd(tape, pc, rq, WRITE_6); goto out; } @@ -1235,77 +1050,30 @@ static void idetape_init_merge_buffer(idetape_tape_t *tape) static void idetape_create_write_filemark_cmd(ide_drive_t *drive, struct ide_atapi_pc *pc, int write_filemark) { - idetape_init_pc(pc); + ide_init_pc(pc); pc->c[0] = WRITE_FILEMARKS; pc->c[4] = write_filemark; pc->flags |= PC_FLAG_WAIT_FOR_DSC; } -static void idetape_create_test_unit_ready_cmd(struct ide_atapi_pc *pc) -{ - idetape_init_pc(pc); - pc->c[0] = TEST_UNIT_READY; -} - -/* - * We add a special packet command request to the tail of the request queue, and - * wait for it to be serviced. This is not to be called from within the request - * handling part of the driver! We allocate here data on the stack and it is - * valid until the request is finished. This is not the case for the bottom part - * of the driver, where we are always leaving the functions to wait for an - * interrupt or a timer event. - * - * From the bottom part of the driver, we should allocate safe memory using - * idetape_next_pc_storage() and ide_tape_next_rq_storage(), and add the request - * to the request list without waiting for it to be serviced! In that case, we - * usually use idetape_queue_pc_head(). - */ -static int idetape_queue_pc_tail(ide_drive_t *drive, struct ide_atapi_pc *pc) -{ - struct ide_tape_obj *tape = drive->driver_data; - struct request *rq; - int error; - - rq = blk_get_request(drive->queue, READ, __GFP_WAIT); - rq->cmd_type = REQ_TYPE_SPECIAL; - rq->cmd[13] = REQ_IDETAPE_PC1; - rq->buffer = (char *)pc; - memcpy(rq->cmd, pc->c, 12); - error = blk_execute_rq(drive->queue, tape->disk, rq, 0); - blk_put_request(rq); - return error; -} - -static void idetape_create_load_unload_cmd(ide_drive_t *drive, - struct ide_atapi_pc *pc, int cmd) -{ - idetape_init_pc(pc); - pc->c[0] = START_STOP; - pc->c[4] = cmd; - pc->flags |= PC_FLAG_WAIT_FOR_DSC; -} - static int idetape_wait_ready(ide_drive_t *drive, unsigned long timeout) { idetape_tape_t *tape = drive->driver_data; - struct ide_atapi_pc pc; + struct gendisk *disk = tape->disk; int load_attempted = 0; /* Wait for the tape to become ready */ set_bit(IDE_AFLAG_MEDIUM_PRESENT, &drive->atapi_flags); timeout += jiffies; while (time_before(jiffies, timeout)) { - idetape_create_test_unit_ready_cmd(&pc); - if (!idetape_queue_pc_tail(drive, &pc)) + if (ide_do_test_unit_ready(drive, disk) == 0) return 0; if ((tape->sense_key == 2 && tape->asc == 4 && tape->ascq == 2) || (tape->asc == 0x3A)) { /* no media */ if (load_attempted) return -ENOMEDIUM; - idetape_create_load_unload_cmd(drive, &pc, - IDETAPE_LU_LOAD_MASK); - idetape_queue_pc_tail(drive, &pc); + ide_do_start_stop(drive, disk, IDETAPE_LU_LOAD_MASK); load_attempted = 1; /* not about to be ready */ } else if (!(tape->sense_key == 2 && tape->asc == 4 && @@ -1318,11 +1086,12 @@ static int idetape_wait_ready(ide_drive_t *drive, unsigned long timeout) static int idetape_flush_tape_buffers(ide_drive_t *drive) { + struct ide_tape_obj *tape = drive->driver_data; struct ide_atapi_pc pc; int rc; idetape_create_write_filemark_cmd(drive, &pc, 0); - rc = idetape_queue_pc_tail(drive, &pc); + rc = ide_queue_pc_tail(drive, tape->disk, &pc); if (rc) return rc; idetape_wait_ready(drive, 60 * 5 * HZ); @@ -1331,7 +1100,7 @@ static int idetape_flush_tape_buffers(ide_drive_t *drive) static void idetape_create_read_position_cmd(struct ide_atapi_pc *pc) { - idetape_init_pc(pc); + ide_init_pc(pc); pc->c[0] = READ_POSITION; pc->req_xfer = 20; } @@ -1345,7 +1114,7 @@ static int idetape_read_position(ide_drive_t *drive) debug_log(DBG_PROCS, "Enter %s\n", __func__); idetape_create_read_position_cmd(&pc); - if (idetape_queue_pc_tail(drive, &pc)) + if (ide_queue_pc_tail(drive, tape->disk, &pc)) return -1; position = tape->first_frame; return position; @@ -1355,7 +1124,7 @@ static void idetape_create_locate_cmd(ide_drive_t *drive, struct ide_atapi_pc *pc, unsigned int block, u8 partition, int skip) { - idetape_init_pc(pc); + ide_init_pc(pc); pc->c[0] = POSITION_TO_ELEMENT; pc->c[1] = 2; put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[3]); @@ -1363,21 +1132,6 @@ static void idetape_create_locate_cmd(ide_drive_t *drive, pc->flags |= PC_FLAG_WAIT_FOR_DSC; } -static int idetape_create_prevent_cmd(ide_drive_t *drive, - struct ide_atapi_pc *pc, int prevent) -{ - idetape_tape_t *tape = drive->driver_data; - - /* device supports locking according to capabilities page */ - if (!(tape->caps[6] & 0x01)) - return 0; - - idetape_init_pc(pc); - pc->c[0] = ALLOW_MEDIUM_REMOVAL; - pc->c[4] = prevent; - return 1; -} - static void __ide_tape_discard_merge_buffer(ide_drive_t *drive) { idetape_tape_t *tape = drive->driver_data; @@ -1405,6 +1159,7 @@ static int idetape_position_tape(ide_drive_t *drive, unsigned int block, u8 partition, int skip) { idetape_tape_t *tape = drive->driver_data; + struct gendisk *disk = tape->disk; int retval; struct ide_atapi_pc pc; @@ -1412,12 +1167,12 @@ static int idetape_position_tape(ide_drive_t *drive, unsigned int block, __ide_tape_discard_merge_buffer(drive); idetape_wait_ready(drive, 60 * 5 * HZ); idetape_create_locate_cmd(drive, &pc, block, partition, skip); - retval = idetape_queue_pc_tail(drive, &pc); + retval = ide_queue_pc_tail(drive, disk, &pc); if (retval) return (retval); idetape_create_read_position_cmd(&pc); - return (idetape_queue_pc_tail(drive, &pc)); + return ide_queue_pc_tail(drive, disk, &pc); } static void ide_tape_discard_merge_buffer(ide_drive_t *drive, @@ -1477,7 +1232,7 @@ static int idetape_queue_rw_tail(ide_drive_t *drive, int cmd, int blocks, static void idetape_create_inquiry_cmd(struct ide_atapi_pc *pc) { - idetape_init_pc(pc); + ide_init_pc(pc); pc->c[0] = INQUIRY; pc->c[4] = 254; pc->req_xfer = 254; @@ -1486,14 +1241,14 @@ static void idetape_create_inquiry_cmd(struct ide_atapi_pc *pc) static void idetape_create_rewind_cmd(ide_drive_t *drive, struct ide_atapi_pc *pc) { - idetape_init_pc(pc); + ide_init_pc(pc); pc->c[0] = REZERO_UNIT; pc->flags |= PC_FLAG_WAIT_FOR_DSC; } static void idetape_create_erase_cmd(struct ide_atapi_pc *pc) { - idetape_init_pc(pc); + ide_init_pc(pc); pc->c[0] = ERASE; pc->c[1] = 1; pc->flags |= PC_FLAG_WAIT_FOR_DSC; @@ -1501,7 +1256,7 @@ static void idetape_create_erase_cmd(struct ide_atapi_pc *pc) static void idetape_create_space_cmd(struct ide_atapi_pc *pc, int count, u8 cmd) { - idetape_init_pc(pc); + ide_init_pc(pc); pc->c[0] = SPACE; put_unaligned(cpu_to_be32(count), (unsigned int *) &pc->c[1]); pc->c[1] = cmd; @@ -1600,7 +1355,7 @@ static int idetape_init_read(ide_drive_t *drive) * No point in issuing this if DSC overlap isn't supported, some * drives (Seagate STT3401A) will return an error. */ - if (drive->dsc_overlap) { + if (drive->dev_flags & IDE_DFLAG_DSC_OVERLAP) { bytes_read = idetape_queue_rw_tail(drive, REQ_IDETAPE_READ, 0, tape->merge_bh); @@ -1664,20 +1419,20 @@ static void idetape_pad_zeros(ide_drive_t *drive, int bcount) */ static int idetape_rewind_tape(ide_drive_t *drive) { + struct ide_tape_obj *tape = drive->driver_data; + struct gendisk *disk = tape->disk; int retval; struct ide_atapi_pc pc; - idetape_tape_t *tape; - tape = drive->driver_data; debug_log(DBG_SENSE, "Enter %s\n", __func__); idetape_create_rewind_cmd(drive, &pc); - retval = idetape_queue_pc_tail(drive, &pc); + retval = ide_queue_pc_tail(drive, disk, &pc); if (retval) return retval; idetape_create_read_position_cmd(&pc); - retval = idetape_queue_pc_tail(drive, &pc); + retval = ide_queue_pc_tail(drive, disk, &pc); if (retval) return retval; return 0; @@ -1720,6 +1475,7 @@ static int idetape_space_over_filemarks(ide_drive_t *drive, short mt_op, int mt_count) { idetape_tape_t *tape = drive->driver_data; + struct gendisk *disk = tape->disk; struct ide_atapi_pc pc; int retval, count = 0; int sprev = !!(tape->caps[4] & 0x20); @@ -1744,7 +1500,7 @@ static int idetape_space_over_filemarks(ide_drive_t *drive, short mt_op, case MTBSF: idetape_create_space_cmd(&pc, mt_count - count, IDETAPE_SPACE_OVER_FILEMARK); - return idetape_queue_pc_tail(drive, &pc); + return ide_queue_pc_tail(drive, disk, &pc); case MTFSFM: case MTBSFM: if (!sprev) @@ -1780,7 +1536,7 @@ static int idetape_space_over_filemarks(ide_drive_t *drive, short mt_op, static ssize_t idetape_chrdev_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { - struct ide_tape_obj *tape = ide_tape_f(file); + struct ide_tape_obj *tape = file->private_data; ide_drive_t *drive = tape->drive; ssize_t bytes_read, temp, actually_read = 0, rc; ssize_t ret = 0; @@ -1842,7 +1598,7 @@ finish: static ssize_t idetape_chrdev_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { - struct ide_tape_obj *tape = ide_tape_f(file); + struct ide_tape_obj *tape = file->private_data; ide_drive_t *drive = tape->drive; ssize_t actually_written = 0; ssize_t ret = 0; @@ -1875,7 +1631,7 @@ static ssize_t idetape_chrdev_write(struct file *file, const char __user *buf, * point in issuing this if DSC overlap isn't supported, some * drives (Seagate STT3401A) will return an error. */ - if (drive->dsc_overlap) { + if (drive->dev_flags & IDE_DFLAG_DSC_OVERLAP) { ssize_t retval = idetape_queue_rw_tail(drive, REQ_IDETAPE_WRITE, 0, tape->merge_bh); @@ -1933,11 +1689,12 @@ static ssize_t idetape_chrdev_write(struct file *file, const char __user *buf, static int idetape_write_filemark(ide_drive_t *drive) { + struct ide_tape_obj *tape = drive->driver_data; struct ide_atapi_pc pc; /* Write a filemark */ idetape_create_write_filemark_cmd(drive, &pc, 1); - if (idetape_queue_pc_tail(drive, &pc)) { + if (ide_queue_pc_tail(drive, tape->disk, &pc)) { printk(KERN_ERR "ide-tape: Couldn't write a filemark\n"); return -EIO; } @@ -1960,6 +1717,7 @@ static int idetape_write_filemark(ide_drive_t *drive) static int idetape_mtioctop(ide_drive_t *drive, short mt_op, int mt_count) { idetape_tape_t *tape = drive->driver_data; + struct gendisk *disk = tape->disk; struct ide_atapi_pc pc; int i, retval; @@ -1996,9 +1754,7 @@ static int idetape_mtioctop(ide_drive_t *drive, short mt_op, int mt_count) return 0; case MTLOAD: ide_tape_discard_merge_buffer(drive, 0); - idetape_create_load_unload_cmd(drive, &pc, - IDETAPE_LU_LOAD_MASK); - return idetape_queue_pc_tail(drive, &pc); + return ide_do_start_stop(drive, disk, IDETAPE_LU_LOAD_MASK); case MTUNLOAD: case MTOFFL: /* @@ -2006,14 +1762,11 @@ static int idetape_mtioctop(ide_drive_t *drive, short mt_op, int mt_count) * attempting to eject. */ if (tape->door_locked) { - if (idetape_create_prevent_cmd(drive, &pc, 0)) - if (!idetape_queue_pc_tail(drive, &pc)) - tape->door_locked = DOOR_UNLOCKED; + if (!ide_set_media_lock(drive, disk, 0)) + tape->door_locked = DOOR_UNLOCKED; } ide_tape_discard_merge_buffer(drive, 0); - idetape_create_load_unload_cmd(drive, &pc, - !IDETAPE_LU_LOAD_MASK); - retval = idetape_queue_pc_tail(drive, &pc); + retval = ide_do_start_stop(drive, disk, !IDETAPE_LU_LOAD_MASK); if (!retval) clear_bit(IDE_AFLAG_MEDIUM_PRESENT, &drive->atapi_flags); return retval; @@ -2022,16 +1775,15 @@ static int idetape_mtioctop(ide_drive_t *drive, short mt_op, int mt_count) return idetape_flush_tape_buffers(drive); case MTRETEN: ide_tape_discard_merge_buffer(drive, 0); - idetape_create_load_unload_cmd(drive, &pc, + return ide_do_start_stop(drive, disk, IDETAPE_LU_RETENSION_MASK | IDETAPE_LU_LOAD_MASK); - return idetape_queue_pc_tail(drive, &pc); case MTEOM: idetape_create_space_cmd(&pc, 0, IDETAPE_SPACE_TO_EOD); - return idetape_queue_pc_tail(drive, &pc); + return ide_queue_pc_tail(drive, disk, &pc); case MTERASE: (void)idetape_rewind_tape(drive); idetape_create_erase_cmd(&pc); - return idetape_queue_pc_tail(drive, &pc); + return ide_queue_pc_tail(drive, disk, &pc); case MTSETBLK: if (mt_count) { if (mt_count < tape->blk_size || @@ -2052,17 +1804,13 @@ static int idetape_mtioctop(ide_drive_t *drive, short mt_op, int mt_count) case MTFSR: case MTBSR: case MTLOCK: - if (!idetape_create_prevent_cmd(drive, &pc, 1)) - return 0; - retval = idetape_queue_pc_tail(drive, &pc); + retval = ide_set_media_lock(drive, disk, 1); if (retval) return retval; tape->door_locked = DOOR_EXPLICITLY_LOCKED; return 0; case MTUNLOCK: - if (!idetape_create_prevent_cmd(drive, &pc, 0)) - return 0; - retval = idetape_queue_pc_tail(drive, &pc); + retval = ide_set_media_lock(drive, disk, 0); if (retval) return retval; tape->door_locked = DOOR_UNLOCKED; @@ -2082,7 +1830,7 @@ static int idetape_mtioctop(ide_drive_t *drive, short mt_op, int mt_count) static int idetape_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { - struct ide_tape_obj *tape = ide_tape_f(file); + struct ide_tape_obj *tape = file->private_data; ide_drive_t *drive = tape->drive; struct mtop mtop; struct mtget mtget; @@ -2144,7 +1892,7 @@ static void ide_tape_get_bsize_from_bdesc(ide_drive_t *drive) struct ide_atapi_pc pc; idetape_create_mode_sense_cmd(&pc, IDETAPE_BLOCK_DESCRIPTOR); - if (idetape_queue_pc_tail(drive, &pc)) { + if (ide_queue_pc_tail(drive, tape->disk, &pc)) { printk(KERN_ERR "ide-tape: Can't get block descriptor\n"); if (tape->blk_size == 0) { printk(KERN_WARNING "ide-tape: Cannot deal with zero " @@ -2164,7 +1912,6 @@ static int idetape_chrdev_open(struct inode *inode, struct file *filp) unsigned int minor = iminor(inode), i = minor & ~0xc0; ide_drive_t *drive; idetape_tape_t *tape; - struct ide_atapi_pc pc; int retval; if (i >= MAX_HWIFS * MAX_DRIVES) @@ -2227,11 +1974,9 @@ static int idetape_chrdev_open(struct inode *inode, struct file *filp) /* Lock the tape drive door so user can't eject. */ if (tape->chrdev_dir == IDETAPE_DIR_NONE) { - if (idetape_create_prevent_cmd(drive, &pc, 1)) { - if (!idetape_queue_pc_tail(drive, &pc)) { - if (tape->door_locked != DOOR_EXPLICITLY_LOCKED) - tape->door_locked = DOOR_LOCKED; - } + if (!ide_set_media_lock(drive, tape->disk, 1)) { + if (tape->door_locked != DOOR_EXPLICITLY_LOCKED) + tape->door_locked = DOOR_LOCKED; } } unlock_kernel(); @@ -2262,9 +2007,8 @@ static void idetape_write_release(ide_drive_t *drive, unsigned int minor) static int idetape_chrdev_release(struct inode *inode, struct file *filp) { - struct ide_tape_obj *tape = ide_tape_f(filp); + struct ide_tape_obj *tape = filp->private_data; ide_drive_t *drive = tape->drive; - struct ide_atapi_pc pc; unsigned int minor = iminor(inode); lock_kernel(); @@ -2283,10 +2027,8 @@ static int idetape_chrdev_release(struct inode *inode, struct file *filp) (void) idetape_rewind_tape(drive); if (tape->chrdev_dir == IDETAPE_DIR_NONE) { if (tape->door_locked == DOOR_LOCKED) { - if (idetape_create_prevent_cmd(drive, &pc, 0)) { - if (!idetape_queue_pc_tail(drive, &pc)) - tape->door_locked = DOOR_UNLOCKED; - } + if (!ide_set_media_lock(drive, tape->disk, 0)) + tape->door_locked = DOOR_UNLOCKED; } } clear_bit(IDE_AFLAG_BUSY, &drive->atapi_flags); @@ -2295,45 +2037,6 @@ static int idetape_chrdev_release(struct inode *inode, struct file *filp) return 0; } -/* - * check the contents of the ATAPI IDENTIFY command results. We return: - * - * 1 - If the tape can be supported by us, based on the information we have so - * far. - * - * 0 - If this tape driver is not currently supported by us. - */ -static int idetape_identify_device(ide_drive_t *drive) -{ - u8 gcw[2], protocol, device_type, removable, packet_size; - - if (drive->id_read == 0) - return 1; - - *((unsigned short *) &gcw) = drive->id->config; - - protocol = (gcw[1] & 0xC0) >> 6; - device_type = gcw[1] & 0x1F; - removable = !!(gcw[0] & 0x80); - packet_size = gcw[0] & 0x3; - - /* Check that we can support this device */ - if (protocol != 2) - printk(KERN_ERR "ide-tape: Protocol (0x%02x) is not ATAPI\n", - protocol); - else if (device_type != 1) - printk(KERN_ERR "ide-tape: Device type (0x%02x) is not set " - "to tape\n", device_type); - else if (!removable) - printk(KERN_ERR "ide-tape: The removable flag is not set\n"); - else if (packet_size != 0) { - printk(KERN_ERR "ide-tape: Packet size (0x%02x) is not 12" - " bytes\n", packet_size); - } else - return 1; - return 0; -} - static void idetape_get_inquiry_results(ide_drive_t *drive) { idetape_tape_t *tape = drive->driver_data; @@ -2341,7 +2044,7 @@ static void idetape_get_inquiry_results(ide_drive_t *drive) char fw_rev[4], vendor_id[8], product_id[16]; idetape_create_inquiry_cmd(&pc); - if (idetape_queue_pc_tail(drive, &pc)) { + if (ide_queue_pc_tail(drive, tape->disk, &pc)) { printk(KERN_ERR "ide-tape: %s: can't get INQUIRY results\n", tape->name); return; @@ -2370,7 +2073,7 @@ static void idetape_get_mode_sense_results(ide_drive_t *drive) u8 speed, max_speed; idetape_create_mode_sense_cmd(&pc, IDETAPE_CAPABILITIES_PAGE); - if (idetape_queue_pc_tail(drive, &pc)) { + if (ide_queue_pc_tail(drive, tape->disk, &pc)) { printk(KERN_ERR "ide-tape: Can't get tape parameters - assuming" " some default values\n"); tape->blk_size = 512; @@ -2402,6 +2105,11 @@ static void idetape_get_mode_sense_results(ide_drive_t *drive) } memcpy(&tape->caps, caps, 20); + + /* device lacks locking support according to capabilities page */ + if ((caps[6] & 1) == 0) + drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING; + if (caps[7] & 0x02) tape->blk_size = 512; else if (caps[7] & 0x04) @@ -2409,28 +2117,56 @@ static void idetape_get_mode_sense_results(ide_drive_t *drive) } #ifdef CONFIG_IDE_PROC_FS -static void idetape_add_settings(ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - - ide_add_setting(drive, "buffer", SETTING_READ, TYPE_SHORT, 0, 0xffff, - 1, 2, (u16 *)&tape->caps[16], NULL); - ide_add_setting(drive, "speed", SETTING_READ, TYPE_SHORT, 0, 0xffff, - 1, 1, (u16 *)&tape->caps[14], NULL); - ide_add_setting(drive, "buffer_size", SETTING_READ, TYPE_INT, 0, 0xffff, - 1, 1024, &tape->buffer_size, NULL); - ide_add_setting(drive, "tdsc", SETTING_RW, TYPE_INT, IDETAPE_DSC_RW_MIN, - IDETAPE_DSC_RW_MAX, 1000, HZ, &tape->best_dsc_rw_freq, - NULL); - ide_add_setting(drive, "dsc_overlap", SETTING_RW, TYPE_BYTE, 0, 1, 1, - 1, &drive->dsc_overlap, NULL); - ide_add_setting(drive, "avg_speed", SETTING_READ, TYPE_INT, 0, 0xffff, - 1, 1, &tape->avg_speed, NULL); - ide_add_setting(drive, "debug_mask", SETTING_RW, TYPE_INT, 0, 0xffff, 1, - 1, &tape->debug_mask, NULL); -} -#else -static inline void idetape_add_settings(ide_drive_t *drive) { ; } +#define ide_tape_devset_get(name, field) \ +static int get_##name(ide_drive_t *drive) \ +{ \ + idetape_tape_t *tape = drive->driver_data; \ + return tape->field; \ +} + +#define ide_tape_devset_set(name, field) \ +static int set_##name(ide_drive_t *drive, int arg) \ +{ \ + idetape_tape_t *tape = drive->driver_data; \ + tape->field = arg; \ + return 0; \ +} + +#define ide_tape_devset_rw_field(_name, _field) \ +ide_tape_devset_get(_name, _field) \ +ide_tape_devset_set(_name, _field) \ +IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name) + +#define ide_tape_devset_r_field(_name, _field) \ +ide_tape_devset_get(_name, _field) \ +IDE_DEVSET(_name, 0, get_##_name, NULL) + +static int mulf_tdsc(ide_drive_t *drive) { return 1000; } +static int divf_tdsc(ide_drive_t *drive) { return HZ; } +static int divf_buffer(ide_drive_t *drive) { return 2; } +static int divf_buffer_size(ide_drive_t *drive) { return 1024; } + +ide_devset_rw_flag(dsc_overlap, IDE_DFLAG_DSC_OVERLAP); + +ide_tape_devset_rw_field(debug_mask, debug_mask); +ide_tape_devset_rw_field(tdsc, best_dsc_rw_freq); + +ide_tape_devset_r_field(avg_speed, avg_speed); +ide_tape_devset_r_field(speed, caps[14]); +ide_tape_devset_r_field(buffer, caps[16]); +ide_tape_devset_r_field(buffer_size, buffer_size); + +static const struct ide_proc_devset idetape_settings[] = { + __IDE_PROC_DEVSET(avg_speed, 0, 0xffff, NULL, NULL), + __IDE_PROC_DEVSET(buffer, 0, 0xffff, NULL, divf_buffer), + __IDE_PROC_DEVSET(buffer_size, 0, 0xffff, NULL, divf_buffer_size), + __IDE_PROC_DEVSET(debug_mask, 0, 0xffff, NULL, NULL), + __IDE_PROC_DEVSET(dsc_overlap, 0, 1, NULL, NULL), + __IDE_PROC_DEVSET(speed, 0, 0xffff, NULL, NULL), + __IDE_PROC_DEVSET(tdsc, IDETAPE_DSC_RW_MIN, IDETAPE_DSC_RW_MAX, + mulf_tdsc, divf_tdsc), + { 0 }, +}; #endif /* @@ -2449,32 +2185,31 @@ static void idetape_setup(ide_drive_t *drive, idetape_tape_t *tape, int minor) unsigned long t; int speed; int buffer_size; - u8 gcw[2]; u16 *ctl = (u16 *)&tape->caps[12]; - drive->pc_callback = ide_tape_callback; + drive->pc_callback = ide_tape_callback; + drive->pc_update_buffers = idetape_update_buffers; + drive->pc_io_buffers = ide_tape_io_buffers; spin_lock_init(&tape->lock); - drive->dsc_overlap = 1; + + drive->dev_flags |= IDE_DFLAG_DSC_OVERLAP; + if (drive->hwif->host_flags & IDE_HFLAG_NO_DSC) { printk(KERN_INFO "ide-tape: %s: disabling DSC overlap\n", tape->name); - drive->dsc_overlap = 0; + drive->dev_flags &= ~IDE_DFLAG_DSC_OVERLAP; } + /* Seagate Travan drives do not support DSC overlap. */ - if (strstr(drive->id->model, "Seagate STT3401")) - drive->dsc_overlap = 0; + if (strstr((char *)&drive->id[ATA_ID_PROD], "Seagate STT3401")) + drive->dev_flags &= ~IDE_DFLAG_DSC_OVERLAP; + tape->minor = minor; tape->name[0] = 'h'; tape->name[1] = 't'; tape->name[2] = '0' + minor; tape->chrdev_dir = IDETAPE_DIR_NONE; - tape->pc = tape->pc_stack; - *((unsigned short *) &gcw) = drive->id->config; - - /* Command packet DRQ type */ - if (((gcw[0] & 0x60) >> 5) == 1) - set_bit(IDE_AFLAG_DRQ_INTERRUPT, &drive->atapi_flags); idetape_get_inquiry_results(drive); idetape_get_mode_sense_results(drive); @@ -2510,9 +2245,9 @@ static void idetape_setup(ide_drive_t *drive, idetape_tape_t *tape, int minor) (*(u16 *)&tape->caps[16] * 512) / tape->buffer_size, tape->buffer_size / 1024, tape->best_dsc_rw_freq * 1000 / HZ, - drive->using_dma ? ", DMA":""); + (drive->dev_flags & IDE_DFLAG_USING_DMA) ? ", DMA" : ""); - idetape_add_settings(drive); + ide_proc_register_driver(drive, tape->driver); } static void ide_tape_remove(ide_drive_t *drive) @@ -2528,13 +2263,13 @@ static void ide_tape_remove(ide_drive_t *drive) static void ide_tape_release(struct kref *kref) { - struct ide_tape_obj *tape = to_ide_tape(kref); + struct ide_tape_obj *tape = to_ide_drv(kref, ide_tape_obj); ide_drive_t *drive = tape->drive; struct gendisk *g = tape->disk; BUG_ON(tape->merge_bh_size); - drive->dsc_overlap = 0; + drive->dev_flags &= ~IDE_DFLAG_DSC_OVERLAP; drive->driver_data = NULL; device_destroy(idetape_sysfs_class, MKDEV(IDETAPE_MAJOR, tape->minor)); device_destroy(idetape_sysfs_class, @@ -2563,6 +2298,16 @@ static ide_proc_entry_t idetape_proc[] = { { "name", S_IFREG|S_IRUGO, proc_idetape_read_name, NULL }, { NULL, 0, NULL, NULL } }; + +static ide_proc_entry_t *ide_tape_proc_entries(ide_drive_t *drive) +{ + return idetape_proc; +} + +static const struct ide_proc_devset *ide_tape_proc_devsets(ide_drive_t *drive) +{ + return idetape_settings; +} #endif static int ide_tape_probe(ide_drive_t *); @@ -2576,13 +2321,12 @@ static ide_driver_t idetape_driver = { .probe = ide_tape_probe, .remove = ide_tape_remove, .version = IDETAPE_VERSION, - .media = ide_tape, - .supports_dsc_overlap = 1, .do_request = idetape_do_request, .end_request = idetape_end_request, .error = __ide_error, #ifdef CONFIG_IDE_PROC_FS - .proc = idetape_proc, + .proc_entries = ide_tape_proc_entries, + .proc_devsets = ide_tape_proc_devsets, #endif }; @@ -2611,7 +2355,7 @@ static int idetape_open(struct inode *inode, struct file *filp) static int idetape_release(struct inode *inode, struct file *filp) { struct gendisk *disk = inode->i_bdev->bd_disk; - struct ide_tape_obj *tape = ide_tape_g(disk); + struct ide_tape_obj *tape = ide_drv_g(disk, ide_tape_obj); ide_tape_put(tape); @@ -2622,7 +2366,7 @@ static int idetape_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { struct block_device *bdev = inode->i_bdev; - struct ide_tape_obj *tape = ide_tape_g(bdev->bd_disk); + struct ide_tape_obj *tape = ide_drv_g(bdev->bd_disk, ide_tape_obj); ide_drive_t *drive = tape->drive; int err = generic_ide_ioctl(drive, file, bdev, cmd, arg); if (err == -EINVAL) @@ -2645,11 +2389,12 @@ static int ide_tape_probe(ide_drive_t *drive) if (!strstr("ide-tape", drive->driver_req)) goto failed; - if (!drive->present) - goto failed; + if (drive->media != ide_tape) goto failed; - if (!idetape_identify_device(drive)) { + + if ((drive->dev_flags & IDE_DFLAG_ID_READ) && + ide_check_atapi_device(drive, DRV_NAME) == 0) { printk(KERN_ERR "ide-tape: %s: not supported by this version of" " the driver\n", drive->name); goto failed; @@ -2667,8 +2412,6 @@ static int ide_tape_probe(ide_drive_t *drive) ide_init_disk(g, drive); - ide_proc_register_driver(drive, &idetape_driver); - kref_init(&tape->kref); tape->drive = drive; @@ -2687,12 +2430,11 @@ static int ide_tape_probe(ide_drive_t *drive) idetape_setup(drive, tape, minor); - device_create_drvdata(idetape_sysfs_class, &drive->gendev, - MKDEV(IDETAPE_MAJOR, minor), NULL, - "%s", tape->name); - device_create_drvdata(idetape_sysfs_class, &drive->gendev, - MKDEV(IDETAPE_MAJOR, minor + 128), NULL, - "n%s", tape->name); + device_create(idetape_sysfs_class, &drive->gendev, + MKDEV(IDETAPE_MAJOR, minor), NULL, "%s", tape->name); + device_create(idetape_sysfs_class, &drive->gendev, + MKDEV(IDETAPE_MAJOR, minor + 128), NULL, + "n%s", tape->name); g->fops = &idetape_block_ops; ide_register_region(g); |