[PATCH 3/4] ide-tape: convert driver to using generic ide_atapi_pc

From: Borislav Petkov
Date: Mon Feb 11 2008 - 03:36:39 EST

Signed-off-by: Borislav Petkov <petkovbb@xxxxxxxxx>
---
drivers/ide/ide-tape.c | 251 ++++++++++++++++++++++--------------------------
1 files changed, 114 insertions(+), 137 deletions(-)

diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 09ff9b0..aefbb47 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -181,34 +181,6 @@ struct idetape_bh {
char *b_data;
};

-typedef struct idetape_packet_command_s {
- /* Actual packet bytes */
- u8 c[12];
- /* On each retry, we increment retries */
- int retries;
- /* Error code */
- int error;
- /* Bytes to transfer */
- int request_transfer;
- /* Bytes actually transferred */
- int actually_transferred;
- /* Size of our data buffer */
- int buffer_size;
- struct idetape_bh *bh;
- char *b_data;
- int b_count;
- /* Data buffer */
- u8 *buffer;
- /* Pointer into the above buffer */
- u8 *current_position;
- /* Called when this packet command is completed */
- ide_startstop_t (*callback) (ide_drive_t *);
- /* Temporary buffer */
- u8 pc_buffer[IDETAPE_PC_BUFFER_SIZE];
- /* Status/Action bit flags: long for set_bit */
- unsigned long flags;
-} idetape_pc_t;
-
/* Packet command flag bits. */
enum {
/* Set when an error is considered normal - We won't retry */
@@ -316,11 +288,11 @@ typedef struct ide_tape_obj {
* retry, to get detailed information on what went wrong.
*/
/* Current packet command */
- idetape_pc_t *pc;
+ struct ide_atapi_pc *pc;
/* Last failed packet command */
- idetape_pc_t *failed_pc;
+ struct ide_atapi_pc *failed_pc;
/* Packet command stack */
- idetape_pc_t pc_stack[IDETAPE_PC_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];
@@ -524,7 +496,7 @@ static struct ide_tape_obj *ide_tape_chrdev_get(unsigned int i)
return tape;
}

-static void idetape_input_buffers(ide_drive_t *drive, idetape_pc_t *pc,
+static void idetape_input_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc,
unsigned int bcount)
{
struct idetape_bh *bh = pc->bh;
@@ -553,7 +525,7 @@ static void idetape_input_buffers(ide_drive_t *drive, idetape_pc_t *pc,
pc->bh = bh;
}

-static void idetape_output_buffers(ide_drive_t *drive, idetape_pc_t *pc,
+static void idetape_output_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc,
unsigned int bcount)
{
struct idetape_bh *bh = pc->bh;
@@ -581,11 +553,11 @@ static void idetape_output_buffers(ide_drive_t *drive, idetape_pc_t *pc,
}
}

-static void idetape_update_buffers(idetape_pc_t *pc)
+static void idetape_update_buffers(struct ide_atapi_pc *pc)
{
struct idetape_bh *bh = pc->bh;
int count;
- unsigned int bcount = pc->actually_transferred;
+ unsigned int bcount = pc->xferred;

if (pc->flags & PC_FLAG_WRITING)
return;
@@ -610,7 +582,7 @@ static void idetape_update_buffers(idetape_pc_t *pc)
* driver. A storage space for a maximum of IDETAPE_PC_STACK packet
* commands is allocated at initialization time.
*/
-static idetape_pc_t *idetape_next_pc_storage(ide_drive_t *drive)
+static struct ide_atapi_pc *idetape_next_pc_storage(ide_drive_t *drive)
{
idetape_tape_t *tape = drive->driver_data;

@@ -645,14 +617,14 @@ static struct request *idetape_next_rq_storage(ide_drive_t *drive)
return (&tape->rq_stack[tape->rq_stack_index++]);
}

-static void idetape_init_pc(idetape_pc_t *pc)
+static void idetape_init_pc(struct ide_atapi_pc *pc)
{
memset(pc->c, 0, 12);
pc->retries = 0;
pc->flags = 0;
- pc->request_transfer = 0;
- pc->buffer = pc->pc_buffer;
- pc->buffer_size = IDETAPE_PC_BUFFER_SIZE;
+ pc->req_xfer = 0;
+ pc->buf = pc->pc_buf;
+ pc->buf_size = IDETAPE_PC_BUFFER_SIZE;
pc->bh = NULL;
pc->b_data = NULL;
}
@@ -664,7 +636,7 @@ static void idetape_init_pc(idetape_pc_t *pc)
static void idetape_analyze_error(ide_drive_t *drive, u8 *sense)
{
idetape_tape_t *tape = drive->driver_data;
- idetape_pc_t *pc = tape->failed_pc;
+ struct ide_atapi_pc *pc = tape->failed_pc;

tape->sense_key = sense[2] & 0xF;
tape->asc = sense[12];
@@ -673,9 +645,9 @@ static void idetape_analyze_error(ide_drive_t *drive, u8 *sense)
debug_log(DBG_ERR, "pc = %x, sense key = %x, asc = %x, ascq = %x\n",
pc->c[0], tape->sense_key, tape->asc, tape->ascq);

- /* Correct pc->actually_transferred by asking the tape. */
+ /* Correct pc->xferred by asking the tape. */
if (pc->flags & PC_FLAG_DMA_ERROR) {
- pc->actually_transferred = pc->request_transfer -
+ pc->xferred = pc->req_xfer -
tape->blk_size *
be32_to_cpu(get_unaligned((u32 *)&sense[3]));
idetape_update_buffers(pc);
@@ -713,7 +685,7 @@ static void idetape_analyze_error(ide_drive_t *drive, u8 *sense)
pc->flags |= PC_FLAG_ABORT;
}
if (!(pc->flags & PC_FLAG_ABORT) &&
- pc->actually_transferred)
+ pc->xferred)
pc->retries = IDETAPE_MAX_PC_RETRIES + 1;
}
}
@@ -922,7 +894,7 @@ static ide_startstop_t idetape_request_sense_callback(ide_drive_t *drive)
debug_log(DBG_PROCS, "Enter %s\n", __func__);

if (!tape->pc->error) {
- idetape_analyze_error(drive, tape->pc->buffer);
+ idetape_analyze_error(drive, tape->pc->buf);
idetape_end_request(drive, 1, 0);
} else {
printk(KERN_ERR "ide-tape: Error in REQUEST SENSE itself - "
@@ -932,13 +904,13 @@ static ide_startstop_t idetape_request_sense_callback(ide_drive_t *drive)
return ide_stopped;
}

-static void idetape_create_request_sense_cmd(idetape_pc_t *pc)
+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->request_transfer = 20;
- pc->callback = &idetape_request_sense_callback;
+ pc->req_xfer = 20;
+ pc->idetape_callback = &idetape_request_sense_callback;
}

static void idetape_init_rq(struct request *rq, u8 cmd)
@@ -963,7 +935,7 @@ static void idetape_init_rq(struct request *rq, u8 cmd)
* 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, idetape_pc_t *pc,
+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;
@@ -982,7 +954,7 @@ static void idetape_queue_pc_head(ide_drive_t *drive, idetape_pc_t *pc,
static ide_startstop_t idetape_retry_pc (ide_drive_t *drive)
{
idetape_tape_t *tape = drive->driver_data;
- idetape_pc_t *pc;
+ struct ide_atapi_pc *pc;
struct request *rq;

(void)ide_read_error(drive);
@@ -1008,7 +980,7 @@ static void idetape_postpone_request(ide_drive_t *drive)
ide_stall_queue(drive, tape->dsc_poll_freq);
}

-typedef void idetape_io_buf(ide_drive_t *, idetape_pc_t *, unsigned int);
+typedef void idetape_io_buf(ide_drive_t *, struct ide_atapi_pc *, unsigned int);

/*
* This is the usual interrupt handler which will be called during a packet
@@ -1021,7 +993,7 @@ static ide_startstop_t idetape_pc_intr(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
idetape_tape_t *tape = drive->driver_data;
- idetape_pc_t *pc = tape->pc;
+ struct ide_atapi_pc *pc = tape->pc;
xfer_func_t *xferfunc;
idetape_io_buf *iobuf;
unsigned int temp;
@@ -1061,7 +1033,7 @@ static ide_startstop_t idetape_pc_intr(ide_drive_t *drive)
*/
pc->flags |= PC_FLAG_DMA_ERROR;
} else {
- pc->actually_transferred = pc->request_transfer;
+ pc->xferred = pc->req_xfer;
idetape_update_buffers(pc);
}
debug_log(DBG_PROCS, "DMA finished\n");
@@ -1071,7 +1043,7 @@ static ide_startstop_t idetape_pc_intr(ide_drive_t *drive)
/* No more interrupts */
if ((stat & DRQ_STAT) == 0) {
debug_log(DBG_SENSE, "Packet command completed, %d bytes"
- " transferred\n", pc->actually_transferred);
+ " transferred\n", pc->xferred);

pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS;
local_irq_enable();
@@ -1115,7 +1087,7 @@ static ide_startstop_t idetape_pc_intr(ide_drive_t *drive)
if (tape->failed_pc == pc)
tape->failed_pc = NULL;
/* Command finished - Call the callback function */
- return pc->callback(drive);
+ return pc->idetape_callback(drive);
}

if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) {
@@ -1146,9 +1118,9 @@ static ide_startstop_t idetape_pc_intr(ide_drive_t *drive)
}
if (!(pc->flags & PC_FLAG_WRITING)) {
/* Reading - Check that we have enough space */
- temp = pc->actually_transferred + bcount;
- if (temp > pc->request_transfer) {
- if (temp > pc->buffer_size) {
+ temp = pc->xferred + bcount;
+ if (temp > pc->req_xfer) {
+ if (temp > pc->buf_size) {
printk(KERN_ERR "ide-tape: The tape wants to "
"send us more data than expected "
"- discarding data\n");
@@ -1170,11 +1142,11 @@ static ide_startstop_t idetape_pc_intr(ide_drive_t *drive)
if (pc->bh)
iobuf(drive, pc, bcount);
else
- xferfunc(drive, pc->current_position, bcount);
+ xferfunc(drive, pc->cur_pos, bcount);

/* Update the current position */
- pc->actually_transferred += bcount;
- pc->current_position += bcount;
+ pc->xferred += bcount;
+ pc->cur_pos += bcount;

debug_log(DBG_SENSE, "[cmd %x] transferred %d bytes on that intr.\n",
pc->c[0], bcount);
@@ -1224,7 +1196,7 @@ static ide_startstop_t idetape_transfer_pc(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
idetape_tape_t *tape = drive->driver_data;
- idetape_pc_t *pc = tape->pc;
+ struct ide_atapi_pc *pc = tape->pc;
int retries = 100;
ide_startstop_t startstop;
u8 ireason;
@@ -1264,7 +1236,8 @@ static ide_startstop_t idetape_transfer_pc(ide_drive_t *drive)
return ide_started;
}

-static ide_startstop_t idetape_issue_pc(ide_drive_t *drive, idetape_pc_t *pc)
+static ide_startstop_t idetape_issue_pc(ide_drive_t *drive,
+ struct ide_atapi_pc *pc)
{
ide_hwif_t *hwif = drive->hwif;
idetape_tape_t *tape = drive->driver_data;
@@ -1304,16 +1277,16 @@ static ide_startstop_t idetape_issue_pc(ide_drive_t *drive, idetape_pc_t *pc)
pc->error = IDETAPE_ERROR_GENERAL;
}
tape->failed_pc = NULL;
- return pc->callback(drive);
+ return pc->idetape_callback(drive);
}
debug_log(DBG_SENSE, "Retry #%d, cmd = %02X\n", pc->retries, pc->c[0]);

pc->retries++;
/* We haven't transferred any data yet */
- pc->actually_transferred = 0;
- pc->current_position = pc->buffer;
+ pc->xferred = 0;
+ pc->cur_pos = pc->buf;
/* Request to transfer the entire buffer at once */
- bcount = pc->request_transfer;
+ bcount = pc->req_xfer;

if (pc->flags & PC_FLAG_DMA_ERROR) {
pc->flags &= ~PC_FLAG_DMA_ERROR;
@@ -1351,7 +1324,7 @@ static ide_startstop_t idetape_pc_callback(ide_drive_t *drive)
}

/* A mode sense command is used to "sense" tape parameters. */
-static void idetape_create_mode_sense_cmd(idetape_pc_t *pc, u8 page_code)
+static void idetape_create_mode_sense_cmd(struct ide_atapi_pc *pc, u8 page_code)
{
idetape_init_pc(pc);
pc->c[0] = MODE_SENSE;
@@ -1370,12 +1343,12 @@ static void idetape_create_mode_sense_cmd(idetape_pc_t *pc, u8 page_code)
/* We will just discard data in that case */
pc->c[4] = 255;
if (page_code == IDETAPE_BLOCK_DESCRIPTOR)
- pc->request_transfer = 12;
+ pc->req_xfer = 12;
else if (page_code == IDETAPE_CAPABILITIES_PAGE)
- pc->request_transfer = 24;
+ pc->req_xfer = 24;
else
- pc->request_transfer = 50;
- pc->callback = &idetape_pc_callback;
+ pc->req_xfer = 50;
+ pc->idetape_callback = &idetape_pc_callback;
}

static void idetape_calculate_speeds(ide_drive_t *drive)
@@ -1444,7 +1417,7 @@ static void idetape_calculate_speeds(ide_drive_t *drive)
static ide_startstop_t idetape_media_access_finished(ide_drive_t *drive)
{
idetape_tape_t *tape = drive->driver_data;
- idetape_pc_t *pc = tape->pc;
+ struct ide_atapi_pc *pc = tape->pc;
u8 stat;

stat = ide_read_status(drive);
@@ -1465,14 +1438,14 @@ static ide_startstop_t idetape_media_access_finished(ide_drive_t *drive)
pc->error = IDETAPE_ERROR_GENERAL;
tape->failed_pc = NULL;
}
- return pc->callback(drive);
+ return pc->idetape_callback(drive);
}

static ide_startstop_t idetape_rw_callback(ide_drive_t *drive)
{
idetape_tape_t *tape = drive->driver_data;
struct request *rq = HWGROUP(drive)->rq;
- int blocks = tape->pc->actually_transferred / tape->blk_size;
+ int blocks = tape->pc->xferred / tape->blk_size;

tape->avg_size += blocks * tape->blk_size;
tape->insert_size += blocks * tape->blk_size;
@@ -1504,39 +1477,41 @@ static ide_startstop_t idetape_rw_callback(ide_drive_t *drive)
return ide_stopped;
}

-static void idetape_create_read_cmd(idetape_tape_t *tape, idetape_pc_t *pc,
+static void idetape_create_read_cmd(idetape_tape_t *tape,
+ struct ide_atapi_pc *pc,
unsigned int length, struct idetape_bh *bh)
{
idetape_init_pc(pc);
pc->c[0] = READ_6;
put_unaligned(cpu_to_be32(length), (unsigned int *) &pc->c[1]);
pc->c[1] = 1;
- pc->callback = &idetape_rw_callback;
+ pc->idetape_callback = &idetape_rw_callback;
pc->bh = bh;
atomic_set(&bh->b_count, 0);
- pc->buffer = NULL;
- pc->buffer_size = length * tape->blk_size;
- pc->request_transfer = pc->buffer_size;
- if (pc->request_transfer == tape->stage_size)
+ pc->buf = NULL;
+ pc->buf_size = length * tape->blk_size;
+ pc->req_xfer = pc->buf_size;
+ if (pc->req_xfer == tape->stage_size)
pc->flags |= PC_FLAG_DMA_RECOMMENDED;
}

-static void idetape_create_write_cmd(idetape_tape_t *tape, idetape_pc_t *pc,
+static void idetape_create_write_cmd(idetape_tape_t *tape,
+ struct ide_atapi_pc *pc,
unsigned int length, struct idetape_bh *bh)
{
idetape_init_pc(pc);
pc->c[0] = WRITE_6;
put_unaligned(cpu_to_be32(length), (unsigned int *) &pc->c[1]);
pc->c[1] = 1;
- pc->callback = &idetape_rw_callback;
+ pc->idetape_callback = &idetape_rw_callback;
pc->flags |= PC_FLAG_WRITING;
pc->bh = bh;
pc->b_data = bh->b_data;
pc->b_count = atomic_read(&bh->b_count);
- pc->buffer = NULL;
- pc->buffer_size = length * tape->blk_size;
- pc->request_transfer = pc->buffer_size;
- if (pc->request_transfer == tape->stage_size)
+ pc->buf = NULL;
+ pc->buf_size = length * tape->blk_size;
+ pc->req_xfer = pc->buf_size;
+ if (pc->req_xfer == tape->stage_size)
pc->flags |= PC_FLAG_DMA_RECOMMENDED;
}

@@ -1544,7 +1519,7 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
struct request *rq, sector_t block)
{
idetape_tape_t *tape = drive->driver_data;
- idetape_pc_t *pc = NULL;
+ struct ide_atapi_pc *pc = NULL;
struct request *postponed_rq = tape->postponed_rq;
u8 stat;

@@ -1631,7 +1606,7 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
goto out;
}
if (rq->cmd[0] & REQ_IDETAPE_PC1) {
- pc = (idetape_pc_t *) rq->buffer;
+ pc = (struct ide_atapi_pc *) rq->buffer;
rq->cmd[0] &= ~(REQ_IDETAPE_PC1);
rq->cmd[0] |= REQ_IDETAPE_PC2;
goto out;
@@ -1883,7 +1858,7 @@ static void idetape_wait_for_request(ide_drive_t *drive, struct request *rq)
static ide_startstop_t idetape_read_position_callback(ide_drive_t *drive)
{
idetape_tape_t *tape = drive->driver_data;
- u8 *readpos = tape->pc->buffer;
+ u8 *readpos = tape->pc->buf;

debug_log(DBG_PROCS, "Enter %s\n", __func__);

@@ -1919,20 +1894,20 @@ static ide_startstop_t idetape_read_position_callback(ide_drive_t *drive)
* writing a filemark otherwise.
*/
static void idetape_create_write_filemark_cmd(ide_drive_t *drive,
- idetape_pc_t *pc, int write_filemark)
+ struct ide_atapi_pc *pc, int write_filemark)
{
idetape_init_pc(pc);
pc->c[0] = WRITE_FILEMARKS;
pc->c[4] = write_filemark;
pc->flags |= PC_FLAG_WAIT_FOR_DSC;
- pc->callback = &idetape_pc_callback;
+ pc->idetape_callback = &idetape_pc_callback;
}

-static void idetape_create_test_unit_ready_cmd(idetape_pc_t *pc)
+static void idetape_create_test_unit_ready_cmd(struct ide_atapi_pc *pc)
{
idetape_init_pc(pc);
pc->c[0] = TEST_UNIT_READY;
- pc->callback = &idetape_pc_callback;
+ pc->idetape_callback = &idetape_pc_callback;
}

/*
@@ -1948,7 +1923,7 @@ static void idetape_create_test_unit_ready_cmd(idetape_pc_t *pc)
* 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, idetape_pc_t *pc)
+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;
@@ -1959,20 +1934,20 @@ static int __idetape_queue_pc_tail(ide_drive_t *drive, idetape_pc_t *pc)
return ide_do_drive_cmd(drive, &rq, ide_wait);
}

-static void idetape_create_load_unload_cmd(ide_drive_t *drive, idetape_pc_t *pc,
- int cmd)
+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;
- pc->callback = &idetape_pc_callback;
+ pc->idetape_callback = &idetape_pc_callback;
}

static int idetape_wait_ready(ide_drive_t *drive, unsigned long timeout)
{
idetape_tape_t *tape = drive->driver_data;
- idetape_pc_t pc;
+ struct ide_atapi_pc pc;
int load_attempted = 0;

/* Wait for the tape to become ready */
@@ -2000,14 +1975,14 @@ static int idetape_wait_ready(ide_drive_t *drive, unsigned long timeout)
return -EIO;
}

-static int idetape_queue_pc_tail(ide_drive_t *drive, idetape_pc_t *pc)
+static int idetape_queue_pc_tail(ide_drive_t *drive, struct ide_atapi_pc *pc)
{
return __idetape_queue_pc_tail(drive, pc);
}

static int idetape_flush_tape_buffers(ide_drive_t *drive)
{
- idetape_pc_t pc;
+ struct ide_atapi_pc pc;
int rc;

idetape_create_write_filemark_cmd(drive, &pc, 0);
@@ -2018,18 +1993,18 @@ static int idetape_flush_tape_buffers(ide_drive_t *drive)
return 0;
}

-static void idetape_create_read_position_cmd(idetape_pc_t *pc)
+static void idetape_create_read_position_cmd(struct ide_atapi_pc *pc)
{
idetape_init_pc(pc);
pc->c[0] = READ_POSITION;
- pc->request_transfer = 20;
- pc->callback = &idetape_read_position_callback;
+ pc->req_xfer = 20;
+ pc->idetape_callback = &idetape_read_position_callback;
}

static int idetape_read_position(ide_drive_t *drive)
{
idetape_tape_t *tape = drive->driver_data;
- idetape_pc_t pc;
+ struct ide_atapi_pc pc;
int position;

debug_log(DBG_PROCS, "Enter %s\n", __func__);
@@ -2041,7 +2016,8 @@ static int idetape_read_position(ide_drive_t *drive)
return position;
}

-static void idetape_create_locate_cmd(ide_drive_t *drive, idetape_pc_t *pc,
+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);
@@ -2050,11 +2026,11 @@ static void idetape_create_locate_cmd(ide_drive_t *drive, idetape_pc_t *pc,
put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[3]);
pc->c[8] = partition;
pc->flags |= PC_FLAG_WAIT_FOR_DSC;
- pc->callback = &idetape_pc_callback;
+ pc->idetape_callback = &idetape_pc_callback;
}

-static int idetape_create_prevent_cmd(ide_drive_t *drive, idetape_pc_t *pc,
- int prevent)
+static int idetape_create_prevent_cmd(ide_drive_t *drive,
+ struct ide_atapi_pc *pc, int prevent)
{
idetape_tape_t *tape = drive->driver_data;

@@ -2065,7 +2041,7 @@ static int idetape_create_prevent_cmd(ide_drive_t *drive, idetape_pc_t *pc,
idetape_init_pc(pc);
pc->c[0] = ALLOW_MEDIUM_REMOVAL;
pc->c[4] = prevent;
- pc->callback = &idetape_pc_callback;
+ pc->idetape_callback = &idetape_pc_callback;
return 1;
}

@@ -2126,7 +2102,7 @@ static int idetape_position_tape(ide_drive_t *drive, unsigned int block,
{
idetape_tape_t *tape = drive->driver_data;
int retval;
- idetape_pc_t pc;
+ struct ide_atapi_pc pc;

if (tape->chrdev_dir == IDETAPE_DIR_READ)
__idetape_discard_read_pipeline(drive);
@@ -2209,40 +2185,41 @@ static void idetape_plug_pipeline(ide_drive_t *drive)
}
}

-static void idetape_create_inquiry_cmd(idetape_pc_t *pc)
+static void idetape_create_inquiry_cmd(struct ide_atapi_pc *pc)
{
idetape_init_pc(pc);
pc->c[0] = INQUIRY;
pc->c[4] = 254;
- pc->request_transfer = 254;
- pc->callback = &idetape_pc_callback;
+ pc->req_xfer = 254;
+ pc->idetape_callback = &idetape_pc_callback;
}

-static void idetape_create_rewind_cmd(ide_drive_t *drive, idetape_pc_t *pc)
+static void idetape_create_rewind_cmd(ide_drive_t *drive,
+ struct ide_atapi_pc *pc)
{
idetape_init_pc(pc);
pc->c[0] = REZERO_UNIT;
pc->flags |= PC_FLAG_WAIT_FOR_DSC;
- pc->callback = &idetape_pc_callback;
+ pc->idetape_callback = &idetape_pc_callback;
}

-static void idetape_create_erase_cmd(idetape_pc_t *pc)
+static void idetape_create_erase_cmd(struct ide_atapi_pc *pc)
{
idetape_init_pc(pc);
pc->c[0] = ERASE;
pc->c[1] = 1;
pc->flags |= PC_FLAG_WAIT_FOR_DSC;
- pc->callback = &idetape_pc_callback;
+ pc->idetape_callback = &idetape_pc_callback;
}

-static void idetape_create_space_cmd(idetape_pc_t *pc, int count, u8 cmd)
+static void idetape_create_space_cmd(struct ide_atapi_pc *pc, int count, u8 cmd)
{
idetape_init_pc(pc);
pc->c[0] = SPACE;
put_unaligned(cpu_to_be32(count), (unsigned int *) &pc->c[1]);
pc->c[1] = cmd;
pc->flags |= PC_FLAG_WAIT_FOR_DSC;
- pc->callback = &idetape_pc_callback;
+ pc->idetape_callback = &idetape_pc_callback;
}

static void idetape_wait_first_stage(ide_drive_t *drive)
@@ -2620,7 +2597,7 @@ static int idetape_pipeline_size(ide_drive_t *drive)
static int idetape_rewind_tape(ide_drive_t *drive)
{
int retval;
- idetape_pc_t pc;
+ struct ide_atapi_pc pc;
idetape_tape_t *tape;
tape = drive->driver_data;

@@ -2683,7 +2660,7 @@ static int idetape_space_over_filemarks(ide_drive_t *drive, short mt_op,
int mt_count)
{
idetape_tape_t *tape = drive->driver_data;
- idetape_pc_t pc;
+ struct ide_atapi_pc pc;
unsigned long flags;
int retval, count = 0;
int sprev = !!(tape->caps[4] & 0x20);
@@ -2941,7 +2918,7 @@ static ssize_t idetape_chrdev_write(struct file *file, const char __user *buf,

static int idetape_write_filemark(ide_drive_t *drive)
{
- idetape_pc_t pc;
+ struct ide_atapi_pc pc;

/* Write a filemark */
idetape_create_write_filemark_cmd(drive, &pc, 1);
@@ -2969,7 +2946,7 @@ 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;
- idetape_pc_t pc;
+ struct ide_atapi_pc pc;
int i, retval;

debug_log(DBG_ERR, "Handling MTIOCTOP ioctl: mt_op=%d, mt_count=%d\n",
@@ -3152,7 +3129,7 @@ static int idetape_chrdev_ioctl(struct inode *inode, struct file *file,
static void ide_tape_get_bsize_from_bdesc(ide_drive_t *drive)
{
idetape_tape_t *tape = drive->driver_data;
- idetape_pc_t pc;
+ struct ide_atapi_pc pc;

idetape_create_mode_sense_cmd(&pc, IDETAPE_BLOCK_DESCRIPTOR);
if (idetape_queue_pc_tail(drive, &pc)) {
@@ -3164,10 +3141,10 @@ static void ide_tape_get_bsize_from_bdesc(ide_drive_t *drive)
}
return;
}
- tape->blk_size = (pc.buffer[4 + 5] << 16) +
- (pc.buffer[4 + 6] << 8) +
- pc.buffer[4 + 7];
- tape->drv_write_prot = (pc.buffer[2] & 0x80) >> 7;
+ tape->blk_size = (pc.buf[4 + 5] << 16) +
+ (pc.buf[4 + 6] << 8) +
+ pc.buf[4 + 7];
+ tape->drv_write_prot = (pc.buf[2] & 0x80) >> 7;
}

static int idetape_chrdev_open(struct inode *inode, struct file *filp)
@@ -3175,7 +3152,7 @@ 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;
- idetape_pc_t pc;
+ struct ide_atapi_pc pc;
int retval;

if (i >= MAX_HWIFS * MAX_DRIVES)
@@ -3275,7 +3252,7 @@ static int idetape_chrdev_release(struct inode *inode, struct file *filp)
{
struct ide_tape_obj *tape = ide_tape_f(filp);
ide_drive_t *drive = tape->drive;
- idetape_pc_t pc;
+ struct ide_atapi_pc pc;
unsigned int minor = iminor(inode);

lock_kernel();
@@ -3353,7 +3330,7 @@ static int idetape_identify_device(ide_drive_t *drive)
static void idetape_get_inquiry_results(ide_drive_t *drive)
{
idetape_tape_t *tape = drive->driver_data;
- idetape_pc_t pc;
+ struct ide_atapi_pc pc;
char fw_rev[6], vendor_id[10], product_id[18];

idetape_create_inquiry_cmd(&pc);
@@ -3362,9 +3339,9 @@ static void idetape_get_inquiry_results(ide_drive_t *drive)
tape->name);
return;
}
- memcpy(vendor_id, &pc.buffer[8], 8);
- memcpy(product_id, &pc.buffer[16], 16);
- memcpy(fw_rev, &pc.buffer[32], 4);
+ memcpy(vendor_id, &pc.buf[8], 8);
+ memcpy(product_id, &pc.buf[16], 16);
+ memcpy(fw_rev, &pc.buf[32], 4);

ide_fixstring(vendor_id, 10, 0);
ide_fixstring(product_id, 18, 0);
@@ -3381,7 +3358,7 @@ static void idetape_get_inquiry_results(ide_drive_t *drive)
static void idetape_get_mode_sense_results(ide_drive_t *drive)
{
idetape_tape_t *tape = drive->driver_data;
- idetape_pc_t pc;
+ struct ide_atapi_pc pc;
u8 *caps;
u8 speed, max_speed;

@@ -3395,7 +3372,7 @@ static void idetape_get_mode_sense_results(ide_drive_t *drive)
put_unaligned(6*52, (u16 *)&tape->caps[16]);
return;
}
- caps = pc.buffer + 4 + pc.buffer[3];
+ caps = pc.buf + 4 + pc.buf[3];

/* convert to host order and save for later use */
speed = be16_to_cpu(*(u16 *)&caps[14]);
--
1.5.3.7

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