Added missing tegra files.HEADmaster

9 files changed, 4549 insertions, 0 deletions

diff --git a/drivers/scsi/fd_mcs.c b/drivers/scsi/fd_mcs.c
new file mode 100644
index 00000000000..a2c6135d337
--- /dev/null
+++ b/drivers/scsi/fd_mcs.c
@@ -0,0 +1,1355 @@
+/* fd_mcs.c -- Future Domain MCS 600/700 (or IBM OEM) driver
+ *
+ * FutureDomain MCS-600/700 v0.2 03/11/1998 by ZP Gu (zpg@castle.net)
+ *
+ * This driver is cloned from fdomain.* to specifically support
+ * the Future Domain MCS 600/700 MCA SCSI adapters. Some PS/2s
+ * also equipped with IBM Fast SCSI Adapter/A which is an OEM
+ * of MCS 700.
+ *
+ * This driver also supports Reply SB16/SCSI card (the SCSI part).
+ *
+ * What makes this driver different is that this driver is MCA only
+ * and it supports multiple adapters in the same system, IRQ 
+ * sharing, some driver statistics, and maps highest SCSI id to sda.
+ * All cards are auto-detected.
+ *
+ * Assumptions: TMC-1800/18C50/18C30, BIOS >= 3.4
+ *
+ * LILO command-line options:
+ *   fd_mcs=<FIFO_COUNT>[,<FIFO_SIZE>]
+ *
+ * ********************************************************
+ * Please see Copyrights/Comments in fdomain.* for credits.
+ * Following is from fdomain.c for acknowledgement:
+ *
+ * Created: Sun May  3 18:53:19 1992 by faith@cs.unc.edu
+ * Revised: Wed Oct  2 11:10:55 1996 by r.faith@ieee.org
+ * Author: Rickard E. Faith, faith@cs.unc.edu
+ * Copyright 1992, 1993, 1994, 1995, 1996 Rickard E. Faith
+ *
+ * $Id: fdomain.c,v 5.45 1996/10/02 15:13:06 root Exp $
+
+ * 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; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ **************************************************************************
+
+ NOTES ON USER DEFINABLE OPTIONS:
+
+ DEBUG: This turns on the printing of various debug information.
+
+ ENABLE_PARITY: This turns on SCSI parity checking.  With the current
+ driver, all attached devices must support SCSI parity.  If none of your
+ devices support parity, then you can probably get the driver to work by
+ turning this option off.  I have no way of testing this, however, and it
+ would appear that no one ever uses this option.
+
+ FIFO_COUNT: The host adapter has an 8K cache (host adapters based on the
+ 18C30 chip have a 2k cache).  When this many 512 byte blocks are filled by
+ the SCSI device, an interrupt will be raised.  Therefore, this could be as
+ low as 0, or as high as 16.  Note, however, that values which are too high
+ or too low seem to prevent any interrupts from occurring, and thereby lock
+ up the machine.  I have found that 2 is a good number, but throughput may
+ be increased by changing this value to values which are close to 2.
+ Please let me know if you try any different values.
+ [*****Now a runtime option*****]
+
+ RESELECTION: This is no longer an option, since I gave up trying to
+ implement it in version 4.x of this driver.  It did not improve
+ performance at all and made the driver unstable (because I never found one
+ of the two race conditions which were introduced by the multiple
+ outstanding command code).  The instability seems a very high price to pay
+ just so that you don't have to wait for the tape to rewind.  If you want
+ this feature implemented, send me patches.  I'll be happy to send a copy
+ of my (broken) driver to anyone who would like to see a copy.
+
+ **************************************************************************/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/blkdev.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/ioport.h>
+#include <linux/proc_fs.h>
+#include <linux/delay.h>
+#include <linux/mca.h>
+#include <linux/spinlock.h>
+#include <linux/slab.h>
+#include <scsi/scsicam.h>
+#include <linux/mca-legacy.h>
+
+#include <asm/io.h>
+#include <asm/system.h>
+
+#include "scsi.h"
+#include <scsi/scsi_host.h>
+
+#define DRIVER_VERSION "v0.2 by ZP Gu<zpg@castle.net>"
+
+/* START OF USER DEFINABLE OPTIONS */
+
+#define DEBUG            0      /* Enable debugging output */
+#define ENABLE_PARITY    1      /* Enable SCSI Parity */
+
+/* END OF USER DEFINABLE OPTIONS */
+
+#if DEBUG
+#define EVERY_ACCESS     0      /* Write a line on every scsi access */
+#define ERRORS_ONLY      1      /* Only write a line if there is an error */
+#define DEBUG_MESSAGES   1      /* Debug MESSAGE IN phase */
+#define DEBUG_ABORT      1      /* Debug abort() routine */
+#define DEBUG_RESET      1      /* Debug reset() routine */
+#define DEBUG_RACE       1      /* Debug interrupt-driven race condition */
+#else
+#define EVERY_ACCESS     0      /* LEAVE THESE ALONE--CHANGE THE ONES ABOVE */
+#define ERRORS_ONLY      0
+#define DEBUG_MESSAGES   0
+#define DEBUG_ABORT      0
+#define DEBUG_RESET      0
+#define DEBUG_RACE       0
+#endif
+
+/* Errors are reported on the line, so we don't need to report them again */
+#if EVERY_ACCESS
+#undef ERRORS_ONLY
+#define ERRORS_ONLY      0
+#endif
+
+#if ENABLE_PARITY
+#define PARITY_MASK      0x08
+#else
+#define PARITY_MASK      0x00
+#endif
+
+enum chip_type {
+        unknown = 0x00,
+        tmc1800 = 0x01,
+        tmc18c50 = 0x02,
+        tmc18c30 = 0x03,
+};
+
+enum {
+        in_arbitration = 0x02,
+        in_selection = 0x04,
+        in_other = 0x08,
+        disconnect = 0x10,
+        aborted = 0x20,
+        sent_ident = 0x40,
+};
+
+enum in_port_type {
+        Read_SCSI_Data = 0,
+        SCSI_Status = 1,
+        TMC_Status = 2,
+        FIFO_Status = 3,        /* tmc18c50/tmc18c30 only */
+        Interrupt_Cond = 4,     /* tmc18c50/tmc18c30 only */
+        LSB_ID_Code = 5,
+        MSB_ID_Code = 6,
+        Read_Loopback = 7,
+        SCSI_Data_NoACK = 8,
+        Interrupt_Status = 9,
+        Configuration1 = 10,
+        Configuration2 = 11,    /* tmc18c50/tmc18c30 only */
+        Read_FIFO = 12,
+        FIFO_Data_Count = 14
+};
+
+enum out_port_type {
+        Write_SCSI_Data = 0,
+        SCSI_Cntl = 1,
+        Interrupt_Cntl = 2,
+        SCSI_Mode_Cntl = 3,
+        TMC_Cntl = 4,
+        Memory_Cntl = 5,        /* tmc18c50/tmc18c30 only */
+        Write_Loopback = 7,
+        IO_Control = 11,        /* tmc18c30 only */
+        Write_FIFO = 12
+};
+
+struct fd_hostdata {
+        unsigned long _bios_base;
+        int _bios_major;
+        int _bios_minor;
+        volatile int _in_command;
+        Scsi_Cmnd *_current_SC;
+        enum chip_type _chip;
+        int _adapter_mask;
+        int _fifo_count;        /* Number of 512 byte blocks before INTR */
+
+        char _adapter_name[64];
+#if DEBUG_RACE
+        volatile int _in_interrupt_flag;
+#endif
+
+        int _SCSI_Mode_Cntl_port;
+        int _FIFO_Data_Count_port;
+        int _Interrupt_Cntl_port;
+        int _Interrupt_Status_port;
+        int _Interrupt_Cond_port;
+        int _Read_FIFO_port;
+        int _Read_SCSI_Data_port;
+        int _SCSI_Cntl_port;
+        int _SCSI_Data_NoACK_port;
+        int _SCSI_Status_port;</