Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

Conflicts:

	drivers/usb/input/hid.h

1 files changed, 0 insertions, 336 deletions

diff --git a/drivers/char/ftape/lowlevel/ftape-write.c b/drivers/char/ftape/lowlevel/ftape-write.c
deleted file mode 100644
index 45601ec801ee..000000000000
--- a/drivers/char/ftape/lowlevel/ftape-write.c
+++ /dev/null
@@ -1,336 +0,0 @@
-/*
- *      Copyright (C) 1993-1995 Bas Laarhoven,
- *                (C) 1996-1997 Claus-Justus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING.  If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-write.c,v $
- * $Revision: 1.3.4.1 $
- * $Date: 1997/11/14 18:07:04 $
- *
- *      This file contains the writing code
- *      for the QIC-117 floppy-tape driver for Linux.
- */
-
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/mm.h>
-
-#include <linux/ftape.h>
-#include <linux/qic117.h>
-#include "../lowlevel/ftape-tracing.h"
-#include "../lowlevel/ftape-write.h"
-#include "../lowlevel/ftape-read.h"
-#include "../lowlevel/ftape-io.h"
-#include "../lowlevel/ftape-ctl.h"
-#include "../lowlevel/ftape-rw.h"
-#include "../lowlevel/ftape-ecc.h"
-#include "../lowlevel/ftape-bsm.h"
-#include "../lowlevel/fdc-isr.h"
-
-/*      Global vars.
- */
-
-/*      Local vars.
- */
-static int last_write_failed;
-
-void ftape_zap_write_buffers(void)
-{
-	int i;
-
-	for (i = 0; i < ft_nr_buffers; ++i) {
-		ft_buffer[i]->status = done;
-	}
-	ftape_reset_buffer();
-}
-
-static int copy_and_gen_ecc(void *destination, 
-			    const void *source,
-			    const SectorMap bad_sector_map)
-{
-	int result;
-	struct memory_segment mseg;
-	int bads = count_ones(bad_sector_map);
-	TRACE_FUN(ft_t_any);
-
-	if (bads > 0) {
-		TRACE(ft_t_noise, "bad sectors in map: %d", bads);
-	}
-	if (bads + 3 >= FT_SECTORS_PER_SEGMENT) {
-		TRACE(ft_t_noise, "empty segment");
-		mseg.blocks = 0; /* skip entire segment */
-		result = 0;      /* nothing written */
-	} else {
-		mseg.blocks = FT_SECTORS_PER_SEGMENT - bads;
-		mseg.data = destination;
-		memcpy(mseg.data, source, (mseg.blocks - 3) * FT_SECTOR_SIZE);
-		result = ftape_ecc_set_segment_parity(&mseg);
-		if (result < 0) {
-			TRACE(ft_t_err, "ecc_set_segment_parity failed");
-		} else {
-			result = (mseg.blocks - 3) * FT_SECTOR_SIZE;
-		}
-	}
-	TRACE_EXIT result;
-}
-
-
-int ftape_start_writing(const ft_write_mode_t mode)
-{
-	buffer_struct *head = ftape_get_buffer(ft_queue_head);
-	int segment_id = head->segment_id;
-	int result;
-	buffer_state_enum wanted_state = (mode == FT_WR_DELETE
-					  ? deleting
-					  : writing);
-	TRACE_FUN(ft_t_flow);
-
-	if ((ft_driver_state != wanted_state) || head->status != waiting) {
-		TRACE_EXIT 0;
-	}
-	ftape_setup_new_segment(head, segment_id, 1);
-	if (mode == FT_WR_SINGLE) {
-		/* stop tape instead of pause */
-		head->next_segment = 0;
-	}
-	ftape_calc_next_cluster(head); /* prepare */
-	head->status = ft_driver_state; /* either writing or deleting */
-	if (ft_runner_status == idle) {
-		TRACE(ft_t_noise,
-		      "starting runner for segment %d", segment_id);
-		TRACE_CATCH(ftape_start_tape(segment_id,head->sector_offset),);
-	} else {
-		TRACE(ft_t_noise, "runner not idle, not starting tape");
-	}
-	/* go */
-	result = fdc_setup_read_write(head, (mode == FT_WR_DELETE
-					     ? FDC_WRITE_DELETED : FDC_WRITE));
-	ftape_set_state(wanted_state); /* should not be necessary */
-	TRACE_EXIT result;
-}
-
-/*  Wait until all data is actually written to tape.
- *  
- *  There is a problem: when the tape runs into logical EOT, then this
- *  failes. We need to restart the runner in this case.
- */
-int ftape_loop_until_writes_done(void)
-{
-	buffer_struct *head;
-	TRACE_FUN(ft_t_flow);
-
-	while ((ft_driver_state == writing || ft_driver_state == deleting) && 
-	       ftape_get_buffer(ft_queue_head)->status != done) {
-		/* set the runner status to idle if at lEOT */
-		TRACE_CATCH(ftape_handle_logical_eot(),	last_write_failed = 1);
-		/* restart the tape if necessary */
-		if (ft_runner_status == idle) {
-			TRACE(ft_t_noise, "runner is idle, restarting");
-			if (ft_driver_state == deleting) {
-				TRACE_CATCH(ftape_start_writing(FT_WR_DELETE),
-					    last_write_failed = 1);
-			} else {
-				TRACE_CATCH(ftape_start_writing(FT_WR_MULTI),
-					    last_write_failed = 1);
-			}
-		}
-		TRACE(ft_t_noise, "tail: %d, head: %d", 
-		      ftape_buffer_id(ft_queue_tail),
-		      ftape_buffer_id(ft_queue_head));
-		TRACE_CATCH(fdc_interrupt_wait(5 * FT_SECOND),
-			    last_write_failed = 1);
-		head = ftape_get_buffer(ft_queue_head);
-		if (head->status == error) {
-			/* Allow escape from loop when signaled !
-			 */
-			FT_SIGNAL_EXIT(_DONT_BLOCK);
-			if (head->hard_error_map != 0) {
-				/*  Implement hard write error recovery here
-				 */
-			}
-			/* retry this one */
-			head->status = waiting;
-			if (ft_runner_status == aborting) {
-				ftape_dumb_stop();
-			}
-			if (ft_runner_status != idle) {
-				TRACE_ABORT(-EIO, ft_t_err,
-					    "unexpected state: "
-					    "ft_runner_status != idle");
-			}
-			ftape_start_writing(ft_driver_state == deleting
-					    ? FT_WR_MULTI : FT_WR_DELETE);
-		}
-		TRACE(ft_t_noise, "looping until writes done");
-	}
-	ftape_set_state(idle);
-	TRACE_EXIT 0;
-}
-
-/*      Write given segment from buffer at address to tape.
- */
-static int write_segment(const int segment_id,
-			 const void *address, 
-			 const ft_write_mode_t write_mode)
-{
-	int bytes_written = 0;
-	buffer_struct *tail;
-	buffer_state_enum wanted_state = (write_mode == FT_WR_DELETE
-					  ? deleting : writing);
-	TRACE_FUN(ft_t_flow);
-
-	TRACE(ft_t_noise, "segment_id = %d", segment_id);
-	if (ft_driver_state != wanted_state) {
-		if (ft_driver_state == deleting ||
-		    wanted_state == deleting) {
-			TRACE_CATCH(ftape_loop_until_writes_done(),);
-		}
-		TRACE(ft_t_noise, "calling ftape_abort_operation");
-		TRACE_CATCH(ftape_abort_operation(),);
-		ftape_zap_write_buffers();
-		ftape_set_state(wanted_state);
-	}
-	/*    if all buffers full we'll have to wait...
-	 */
-	ftape_wait_segment(wanted_state);
-	tail = ftape_get_buffer(ft_queue_tail);
-	switch(tail->status) {
-	case done:
-		ft_history.defects += count_ones(tail->hard_error_map);
-		break;
-	case waiting:
-		/* this could happen with multiple EMPTY_SEGMENTs, but
-		 * shouldn't happen any more as we re-start the runner even
-		 * with an empty segment.
-		 */
-		bytes_written = -EAGAIN;
-		break;
-	case error:
-		/*  setup for a retry
-		 */
-		tail->status = waiting;
-		bytes_written = -EAGAIN; /* force retry */
-		if (tail->hard_error_map != 0) {
-			TRACE(ft_t_warn, 
-			      "warning: %d hard error(s) in written segment",
-			      count_ones(tail->hard_error_map));
-			TRACE(ft_t_noise, "hard_error_map = 0x%08lx", 
-			      (long)tail->hard_error_map);
-			/*  Implement hard write error recovery here
-			 */
-		}
-		break;
-	default:
-		TRACE_ABORT(-EIO, ft_t_err,
-			    "wait for empty segment failed, tail status: %d",
-			    tail->status);
-	}
-	/*    should runner stop ?
-	 */
-	if (ft_runner_status == aborting) {
-		buffer_struct *head = ftape_get_buffer(ft_queue_head);
-		if (head->status == wanted_state) {
-			head->status = done; /* ???? */
-		}
-		/*  don't call abort_operation(), we don't want to zap
-		 *  the dma buffers
-		 */
-		TRACE_CATCH(ftape_dumb_stop(),);
-	} else {
-		/*  If just passed last segment on tape: wait for BOT
-		 *  or EOT mark. Sets ft_runner_status to idle if at lEOT
-		 *  and successful 
-		 */
-		TRACE_CATCH(ftape_handle_logical_eot(),);
-	}
-	if (tail->status == done) {
-		/* now at least one buffer is empty, fill it with our
-		 * data.  skip bad sectors and generate ecc.
-		 * copy_and_gen_ecc return nr of bytes written, range
-		 * 0..29 Kb inclusive!  
-		 *
-		 * Empty segments are handled inside coyp_and_gen_ecc()
-		 */
-		if (write_mode != FT_WR_DELETE) {
-			TRACE_CATCH(bytes_written = copy_and_gen_ecc(
-				tail->address, address,
-				ftape_get_bad_sector_entry(segment_id)),);
-		}
-		tail->segment_id = segment_id;
-		tail->status = waiting;
-		tail = ftape_next_buffer(ft_queue_tail);
-	}
-	/*  Start tape only if all buffers full or flush mode.
-	 *  This will give higher probability of streaming.
-	 */
-	if (ft_runner_status != running && 
-	    ((tail->status == waiting &&
-	      ftape_get_buffer(ft_queue_head) == tail) ||
-	     write_mode != FT_WR_ASYNC)) {
-		TRACE_CATCH(ftape_start_writing(write_mode),);
-	}
-	TRACE_EXIT bytes_written;
-}
-
-/*  Write as much as fits from buffer to the given segment on tape
- *  and handle retries.
- *  Return the number of bytes written (>= 0), or:
- *      -EIO          write failed
- *      -EINTR        interrupted by signal
- *      -ENOSPC       device full
- */
-int ftape_write_segment(const int segment_id,
-			const void *buffer, 
-			const ft_write_mode_t flush)
-{
-	int retry = 0;
-	int result;
-	TRACE_FUN(ft_t_flow);
-
-	ft_history.used |= 2;
-	if (segment_id >= ft_tracks_per_tape*ft_segments_per_track) {
-		/* tape full */
-		TRACE_ABORT(-ENOSPC, ft_t_err,
-			    "invalid segment id: %d (max %d)", 
-			    segment_id, 
-			    ft_tracks_per_tape * ft_segments_per_track -1);
-	}
-	for (;;) {
-		if ((result = write_segment(segment_id, buffer, flush)) >= 0) {
-			if (result == 0) { /* empty segment */
-				TRACE(ft_t_noise,
-				      "empty segment, nothing written");
-			}
-			TRACE_EXIT result;
-		}
-		if (result == -EAGAIN) {
-			if (++retry > 100) { /* give up */
-				TRACE_ABORT(-EIO, ft_t_err,
-				      "write failed, >100 retries in segment");
-			}
-			TRACE(ft_t_warn, "write error, retry %d (%d)",
-			      retry,
-			      ftape_get_buffer(ft_queue_tail)->segment_id);
-		} else {
-			TRACE_ABORT(result, ft_t_err,
-				    "write_segment failed, error: %d", result);
-		}
-		/* Allow escape from loop when signaled !
-		 */
-		FT_SIGNAL_EXIT(_DONT_BLOCK);
-	}
-}