m68k: Atari SCSI revival

SCSI should be working on a TT (but someone should really try!) but causes
trouble on a Falcon (as in: it ate a filesystem of mine) at least when
used concurrently with IDE. I have the notion it's because locking of the
ST-DMA interrupt by IDE is broken in 2.6 (the IDE driver always complains
about trying to release an already-released ST-DMA). Needs more work, but
that's on the IDE or m68k interrupt side rather than SCSI.

Signed-off-by: Michael Schmitz <schmitz@debian.org>
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 26 insertions, 4 deletions

diff --git a/drivers/scsi/atari_scsi.h b/drivers/scsi/atari_scsi.h
index f917bdd09b41..75b549b2dfc1 100644
--- a/drivers/scsi/atari_scsi.h
+++ b/drivers/scsi/atari_scsi.h
@@ -21,11 +21,7 @@
 int atari_scsi_detect (struct scsi_host_template *);
 const char *atari_scsi_info (struct Scsi_Host *);
 int atari_scsi_reset (Scsi_Cmnd *, unsigned int);
-#ifdef MODULE
 int atari_scsi_release (struct Scsi_Host *);
-#else
-#define atari_scsi_release NULL
-#endif
 
 /* The values for CMD_PER_LUN and CAN_QUEUE are somehow arbitrary. Higher
  * values should work, too; try it! (but cmd_per_lun costs memory!) */
@@ -63,6 +59,32 @@ int atari_scsi_release (struct Scsi_Host *);
 #define NCR5380_dma_xfer_len(i,cmd,phase) \
         atari_dma_xfer_len(cmd->SCp.this_residual,cmd,((phase) & SR_IO) ? 0 : 1)
 
+/* former generic SCSI error handling stuff */
+
+#define SCSI_ABORT_SNOOZE 0
+#define SCSI_ABORT_SUCCESS 1
+#define SCSI_ABORT_PENDING 2
+#define SCSI_ABORT_BUSY 3
+#define SCSI_ABORT_NOT_RUNNING 4
+#define SCSI_ABORT_ERROR 5
+
+#define SCSI_RESET_SNOOZE 0
+#define SCSI_RESET_PUNT 1
+#define SCSI_RESET_SUCCESS 2
+#define SCSI_RESET_PENDING 3
+#define SCSI_RESET_WAKEUP 4
+#define SCSI_RESET_NOT_RUNNING 5
+#define SCSI_RESET_ERROR 6
+
+#define SCSI_RESET_SYNCHRONOUS          0x01
+#define SCSI_RESET_ASYNCHRONOUS         0x02
+#define SCSI_RESET_SUGGEST_BUS_RESET    0x04
+#define SCSI_RESET_SUGGEST_HOST_RESET   0x08
+
+#define SCSI_RESET_BUS_RESET 0x100
+#define SCSI_RESET_HOST_RESET 0x200
+#define SCSI_RESET_ACTION   0xff
+
 /* Debugging printk definitions:
  *
  *  ARB  -> arbitration