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raspberrypi-kernel
提交 90699ce2 编写于 作者: B Borislav Petkov 提交者： Bartlomiej Zolnierkiewicz
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ide-tape: use generic scsi commands 

Also, remove those which weren't used.
Signed-off-by: NBorislav Petkov <bbpetkov@yahoo.de>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
上级 f011889d
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Showing with 29 addition and 50 deletion
drivers/ide/ide-tape.c
浏览文件 @ 90699ce2
......@@ -36,6 +36,7 @@
#include <linux/completion.h>
#include <linux/bitops.h>
#include <linux/mutex.h>
#include <scsi/scsi.h>
#include <asm/byteorder.h>
#include <asm/irq.h>
......@@ -516,27 +517,6 @@ static void ide_tape_put(struct ide_tape_obj *tape)
/* 0 = no tape is loaded, so we don't rewind after ejecting */
#define IDETAPE_MEDIUM_PRESENT 9
/*
* Supported ATAPI tape drives packet commands
*/
#define IDETAPE_TEST_UNIT_READY_CMD 0x00
#define IDETAPE_REWIND_CMD 0x01
#define IDETAPE_REQUEST_SENSE_CMD 0x03
#define IDETAPE_READ_CMD 0x08
#define IDETAPE_WRITE_CMD 0x0a
#define IDETAPE_WRITE_FILEMARK_CMD 0x10
#define IDETAPE_SPACE_CMD 0x11
#define IDETAPE_INQUIRY_CMD 0x12
#define IDETAPE_ERASE_CMD 0x19
#define IDETAPE_MODE_SENSE_CMD 0x1a
#define IDETAPE_MODE_SELECT_CMD 0x15
#define IDETAPE_LOAD_UNLOAD_CMD 0x1b
#define IDETAPE_PREVENT_CMD 0x1e
#define IDETAPE_LOCATE_CMD 0x2b
#define IDETAPE_READ_POSITION_CMD 0x34
#define IDETAPE_READ_BUFFER_CMD 0x3c
#define IDETAPE_SET_SPEED_CMD 0xbb
/*
* Some defines for the READ BUFFER command
*/
......@@ -841,7 +821,7 @@ static void idetape_analyze_error(ide_drive_t *drive, u8 *sense)
* with sense key=5, asc=0x22, ascq=0, let it slide. Some drives
* (i.e. Seagate STT3401A Travan) don't support 0-length read/writes.
*/
if ((pc->c[0] == IDETAPE_READ_CMD || pc->c[0] == IDETAPE_WRITE_CMD)
if ((pc->c[0] == READ_6 || pc->c[0] == WRITE_6)
/* length == 0 */
&& pc->c[4] == 0 && pc->c[3] == 0 && pc->c[2] == 0) {
if (tape->sense_key == 5) {
......@@ -851,18 +831,18 @@ static void idetape_analyze_error(ide_drive_t *drive, u8 *sense)
set_bit(PC_ABORT, &pc->flags);
}
}
if (pc->c[0] == IDETAPE_READ_CMD && (sense[2] & 0x80)) {
if (pc->c[0] == READ_6 && (sense[2] & 0x80)) {
pc->error = IDETAPE_ERROR_FILEMARK;
set_bit(PC_ABORT, &pc->flags);
}
if (pc->c[0] == IDETAPE_WRITE_CMD) {
if (pc->c[0] == WRITE_6) {
if ((sense[2] & 0x40) || (tape->sense_key == 0xd
&& tape->asc == 0x0 && tape->ascq == 0x2)) {
pc->error = IDETAPE_ERROR_EOD;
set_bit(PC_ABORT, &pc->flags);
}
}
if (pc->c[0] == IDETAPE_READ_CMD || pc->c[0] == IDETAPE_WRITE_CMD) {
if (pc->c[0] == READ_6 || pc->c[0] == WRITE_6) {
if (tape->sense_key == 8) {
pc->error = IDETAPE_ERROR_EOD;
set_bit(PC_ABORT, &pc->flags);
......@@ -1111,7 +1091,7 @@ static ide_startstop_t idetape_request_sense_callback (ide_drive_t *drive)
static void idetape_create_request_sense_cmd (idetape_pc_t *pc)
{
idetape_init_pc(pc);
pc->c[0] = IDETAPE_REQUEST_SENSE_CMD;
pc->c[0] = REQUEST_SENSE;
pc->c[4] = 20;
pc->request_transfer = 20;
pc->callback = &idetape_request_sense_callback;
......@@ -1264,15 +1244,14 @@ static ide_startstop_t idetape_pc_intr (ide_drive_t *drive)
local_irq_enable();
#if SIMULATE_ERRORS
if ((pc->c[0] == IDETAPE_WRITE_CMD ||
pc->c[0] == IDETAPE_READ_CMD) &&
if ((pc->c[0] == WRITE_6 || pc->c[0] == READ_6) &&
(++error_sim_count % 100) == 0) {
printk(KERN_INFO "ide-tape: %s: simulating error\n",
tape->name);
stat |= ERR_STAT;
}
#endif
if ((stat & ERR_STAT) && pc->c[0] == IDETAPE_REQUEST_SENSE_CMD)
if ((stat & ERR_STAT) && pc->c[0] == REQUEST_SENSE)
stat &= ~ERR_STAT;
if ((stat & ERR_STAT) || test_bit(PC_DMA_ERROR, &pc->flags)) {
/* Error detected */
......@@ -1281,7 +1260,7 @@ static ide_startstop_t idetape_pc_intr (ide_drive_t *drive)
printk(KERN_INFO "ide-tape: %s: I/O error\n",
tape->name);
#endif /* IDETAPE_DEBUG_LOG */
if (pc->c[0] == IDETAPE_REQUEST_SENSE_CMD) {
if (pc->c[0] == REQUEST_SENSE) {
printk(KERN_ERR "ide-tape: I/O error in request sense command\n");
return ide_do_reset(drive);
}
......@@ -1469,13 +1448,13 @@ static ide_startstop_t idetape_issue_packet_command (ide_drive_t *drive, idetape
int dma_ok = 0;
u16 bcount;
if (tape->pc->c[0] == IDETAPE_REQUEST_SENSE_CMD &&
pc->c[0] == IDETAPE_REQUEST_SENSE_CMD) {
if (tape->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");
}
if (tape->failed_pc == NULL && pc->c[0] != IDETAPE_REQUEST_SENSE_CMD)
if (tape->failed_pc == NULL && pc->c[0] != REQUEST_SENSE)
tape->failed_pc = pc;
/* Set the current packet command */
tape->pc = pc;
......@@ -1488,7 +1467,7 @@ static ide_startstop_t idetape_issue_packet_command (ide_drive_t *drive, idetape
* filemark, or end of the media, for example).
*/
if (!test_bit(PC_ABORT, &pc->flags)) {
if (!(pc->c[0] == IDETAPE_TEST_UNIT_READY_CMD &&
if (!(pc->c[0] == TEST_UNIT_READY &&
tape->sense_key == 2 && tape->asc == 4 &&
(tape->ascq == 1 || tape->ascq == 8))) {
printk(KERN_ERR "ide-tape: %s: I/O error, "
......@@ -1561,7 +1540,7 @@ static ide_startstop_t idetape_pc_callback (ide_drive_t *drive)
static void idetape_create_mode_sense_cmd (idetape_pc_t *pc, u8 page_code)
{
idetape_init_pc(pc);
pc->c[0] = IDETAPE_MODE_SENSE_CMD;
pc->c[0] = MODE_SENSE;
if (page_code != IDETAPE_BLOCK_DESCRIPTOR)
pc->c[1] = 8; /* DBD = 1 - Don't return block descriptors */
pc->c[2] = page_code;
......@@ -1642,7 +1621,7 @@ static ide_startstop_t idetape_media_access_finished (ide_drive_t *drive)
if (stat & SEEK_STAT) {
if (stat & ERR_STAT) {
/* Error detected */
if (pc->c[0] != IDETAPE_TEST_UNIT_READY_CMD)
if (pc->c[0] != TEST_UNIT_READY)
printk(KERN_ERR "ide-tape: %s: I/O error, ",
tape->name);
/* Retry operation */
......@@ -1699,7 +1678,7 @@ static ide_startstop_t idetape_rw_callback (ide_drive_t *drive)
static void idetape_create_read_cmd(idetape_tape_t *tape, idetape_pc_t *pc, unsigned int length, struct idetape_bh *bh)
{
idetape_init_pc(pc);
pc->c[0] = IDETAPE_READ_CMD;
pc->c[0] = READ_6;
put_unaligned(htonl(length), (unsigned int *) &pc->c[1]);
pc->c[1] = 1;
pc->callback = &idetape_rw_callback;
......@@ -1717,7 +1696,7 @@ static void idetape_create_read_buffer_cmd(idetape_tape_t *tape, idetape_pc_t *p
struct idetape_bh *p = bh;
idetape_init_pc(pc);
pc->c[0] = IDETAPE_READ_BUFFER_CMD;
pc->c[0] = READ_BUFFER;
pc->c[1] = IDETAPE_RETRIEVE_FAULTY_BLOCK;
pc->c[7] = size >> 8;
pc->c[8] = size & 0xff;
......@@ -1735,7 +1714,7 @@ static void idetape_create_read_buffer_cmd(idetape_tape_t *tape, idetape_pc_t *p
static void idetape_create_write_cmd(idetape_tape_t *tape, idetape_pc_t *pc, unsigned int length, struct idetape_bh *bh)
{
idetape_init_pc(pc);
pc->c[0] = IDETAPE_WRITE_CMD;
pc->c[0] = WRITE_6;
put_unaligned(htonl(length), (unsigned int *) &pc->c[1]);
pc->c[1] = 1;
pc->callback = &idetape_rw_callback;
......@@ -1781,7 +1760,7 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
* Retry a failed packet command
*/
if (tape->failed_pc != NULL &&
tape->pc->c[0] == IDETAPE_REQUEST_SENSE_CMD) {
tape->pc->c[0] == REQUEST_SENSE) {
return idetape_issue_packet_command(drive, tape->failed_pc);
}
if (postponed_rq != NULL)
......@@ -2152,7 +2131,7 @@ static ide_startstop_t idetape_read_position_callback (ide_drive_t *drive)
static void idetape_create_write_filemark_cmd (ide_drive_t *drive, idetape_pc_t *pc,int write_filemark)
{
idetape_init_pc(pc);
pc->c[0] = IDETAPE_WRITE_FILEMARK_CMD;
pc->c[0] = WRITE_FILEMARKS;
pc->c[4] = write_filemark;
set_bit(PC_WAIT_FOR_DSC, &pc->flags);
pc->callback = &idetape_pc_callback;
......@@ -2161,7 +2140,7 @@ static void idetape_create_write_filemark_cmd (ide_drive_t *drive, idetape_pc_t
static void idetape_create_test_unit_ready_cmd(idetape_pc_t *pc)
{
idetape_init_pc(pc);
pc->c[0] = IDETAPE_TEST_UNIT_READY_CMD;
pc->c[0] = TEST_UNIT_READY;
pc->callback = &idetape_pc_callback;
}
......@@ -2199,7 +2178,7 @@ static int __idetape_queue_pc_tail (ide_drive_t *drive, idetape_pc_t *pc)
static void idetape_create_load_unload_cmd (ide_drive_t *drive, idetape_pc_t *pc,int cmd)
{
idetape_init_pc(pc);
pc->c[0] = IDETAPE_LOAD_UNLOAD_CMD;
pc->c[0] = START_STOP;
pc->c[4] = cmd;
set_bit(PC_WAIT_FOR_DSC, &pc->flags);
pc->callback = &idetape_pc_callback;
......@@ -2256,7 +2235,7 @@ static int idetape_flush_tape_buffers (ide_drive_t *drive)
static void idetape_create_read_position_cmd (idetape_pc_t *pc)
{
idetape_init_pc(pc);
pc->c[0] = IDETAPE_READ_POSITION_CMD;
pc->c[0] = READ_POSITION;
pc->request_transfer = 20;
pc->callback = &idetape_read_position_callback;
}
......@@ -2282,7 +2261,7 @@ static int idetape_read_position (ide_drive_t *drive)
static void idetape_create_locate_cmd (ide_drive_t *drive, idetape_pc_t *pc, unsigned int block, u8 partition, int skip)
{
idetape_init_pc(pc);
pc->c[0] = IDETAPE_LOCATE_CMD;
pc->c[0] = POSITION_TO_ELEMENT;
pc->c[1] = 2;
put_unaligned(htonl(block), (unsigned int *) &pc->c[3]);
pc->c[8] = partition;
......@@ -2299,7 +2278,7 @@ static int idetape_create_prevent_cmd (ide_drive_t *drive, idetape_pc_t *pc, int
return 0;
idetape_init_pc(pc);
pc->c[0] = IDETAPE_PREVENT_CMD;
pc->c[0] = ALLOW_MEDIUM_REMOVAL;
pc->c[4] = prevent;
pc->callback = &idetape_pc_callback;
return 1;
......@@ -2450,7 +2429,7 @@ static void idetape_insert_pipeline_into_queue (ide_drive_t *drive)
static void idetape_create_inquiry_cmd (idetape_pc_t *pc)
{
idetape_init_pc(pc);
pc->c[0] = IDETAPE_INQUIRY_CMD;
pc->c[0] = INQUIRY;
pc->c[4] = pc->request_transfer = 254;
pc->callback = &idetape_pc_callback;
}
......@@ -2458,7 +2437,7 @@ static void idetape_create_inquiry_cmd (idetape_pc_t *pc)
static void idetape_create_rewind_cmd (ide_drive_t *drive, idetape_pc_t *pc)
{
idetape_init_pc(pc);
pc->c[0] = IDETAPE_REWIND_CMD;
pc->c[0] = REZERO_UNIT;
set_bit(PC_WAIT_FOR_DSC, &pc->flags);
pc->callback = &idetape_pc_callback;
}
......@@ -2466,7 +2445,7 @@ static void idetape_create_rewind_cmd (ide_drive_t *drive, idetape_pc_t *pc)
static void idetape_create_erase_cmd (idetape_pc_t *pc)
{
idetape_init_pc(pc);
pc->c[0] = IDETAPE_ERASE_CMD;
pc->c[0] = ERASE;
pc->c[1] = 1;
set_bit(PC_WAIT_FOR_DSC, &pc->flags);
pc->callback = &idetape_pc_callback;
......@@ -2475,7 +2454,7 @@ static void idetape_create_erase_cmd (idetape_pc_t *pc)
static void idetape_create_space_cmd (idetape_pc_t *pc,int count, u8 cmd)
{
idetape_init_pc(pc);
pc->c[0] = IDETAPE_SPACE_CMD;
pc->c[0] = SPACE;
put_unaligned(htonl(count), (unsigned int *) &pc->c[1]);
pc->c[1] = cmd;
set_bit(PC_WAIT_FOR_DSC, &pc->flags);
......
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