Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 179 insertions, 0 deletions

diff --git a/drivers/scsi/pas16.h b/drivers/scsi/pas16.h
new file mode 100644
index 00000000000..58d4d67aed2
--- /dev/null
+++ b/drivers/scsi/pas16.h
@@ -0,0 +1,179 @@
+/*
+ * This driver adapted from Drew Eckhardt's Trantor T128 driver
+ *
+ * Copyright 1993, Drew Eckhardt
+ *      Visionary Computing
+ *      (Unix and Linux consulting and custom programming)
+ *      drew@colorado.edu
+ *      +1 (303) 666-5836
+ *
+ *  ( Based on T128 - DISTRIBUTION RELEASE 3. ) 
+ *
+ * Modified to work with the Pro Audio Spectrum/Studio 16
+ * by John Weidman.
+ *
+ *
+ * For more information, please consult 
+ *
+ * Media Vision
+ * (510) 770-8600
+ * (800) 348-7116
+ * 
+ * and 
+ *
+ * NCR 5380 Family
+ * SCSI Protocol Controller
+ * Databook
+ *
+ * NCR Microelectronics
+ * 1635 Aeroplaza Drive
+ * Colorado Springs, CO 80916
+ * 1+ (719) 578-3400
+ * 1+ (800) 334-5454
+ */
+
+
+#ifndef PAS16_H
+#define PAS16_H
+
+#define PAS16_PUBLIC_RELEASE 3
+
+#define PDEBUG_INIT     0x1
+#define PDEBUG_TRANSFER 0x2
+
+#define PAS16_DEFAULT_BASE_1  0x388
+#define PAS16_DEFAULT_BASE_2  0x384
+#define PAS16_DEFAULT_BASE_3  0x38c
+#define PAS16_DEFAULT_BASE_4  0x288
+
+#define PAS16_DEFAULT_BOARD_1_IRQ 10
+#define PAS16_DEFAULT_BOARD_2_IRQ 12
+#define PAS16_DEFAULT_BOARD_3_IRQ 14
+#define PAS16_DEFAULT_BOARD_4_IRQ 15
+
+
+/*
+ * The Pro Audio Spectrum boards are I/O mapped. They use a Zilog 5380
+ * SCSI controller, which is the equivalent of NCR's 5380.  "Pseudo-DMA"
+ * architecture is used, where a PAL drives the DMA signals on the 5380
+ * allowing fast, blind transfers with proper handshaking. 
+ */
+
+
+/* The Time-out Counter register is used to safe-guard against a stuck
+ * bus (in the case of RDY driven handshake) or a stuck byte (if 16-Bit
+ * DMA conversion is used).  The counter uses a 28.224MHz clock
+ * divided by 14 as its clock source.  In the case of a stuck byte in
+ * the holding register, an interrupt is generated (and mixed with the
+ * one with the drive) using the CD-ROM interrupt pointer.
+ */
+ 
+#define P_TIMEOUT_COUNTER_REG   0x4000
+#define P_TC_DISABLE    0x80    /* Set to 0 to enable timeout int. */
+                                /* Bits D6-D0 contain timeout count */
+
+
+#define P_TIMEOUT_STATUS_REG_OFFSET     0x4001
+#define P_TS_TIM                0x80    /* check timeout status */
+                                        /* Bits D6-D4 N/U */
+#define P_TS_ARM_DRQ_INT        0x08    /* Arm DRQ Int.  When set high,
+                                         * the next rising edge will
+                                         * cause a CD-ROM interrupt.
+                                         * When set low, the interrupt
+                                         * will be cleared.  There is
+                                         * no status available for
+                                         * this interrupt.
+                                         */
+#define P_TS_ENABLE_TO_ERR_INTERRUPT    /* Enable timeout error int. */
+#define P_TS_ENABLE_WAIT                /* Enable Wait */
+
+#define P_TS_CT                 0x01    /* clear timeout. Note: writing
+                                         * to this register clears the
+                                         * timeout error int. or status
+                                         */
+
+
+/*
+ * The data register reads/writes to/from the 5380 in pseudo-DMA mode
+ */ 
+
+#define P_DATA_REG_OFFSET       0x5c00  /* rw */
+
+#define P_STATUS_REG_OFFSET     0x5c01  /* ro */
+#define P_ST_RDY                0x80    /* 5380 DDRQ Status */
+
+#define P_IRQ_STATUS            0x5c03
+#define P_IS_IRQ                0x80    /* DIRQ status */
+
+#define PCB_CONFIG 0x803
+#define MASTER_ADDRESS_PTR 0x9a01  /* Fixed position - no relo */
+#define SYS_CONFIG_4 0x8003
+#define WAIT_STATE 0xbc00
+#define OPERATION_MODE_1 0xec03
+#define IO_CONFIG_3 0xf002
+
+
+#ifndef ASM
+static int pas16_abort(Scsi_Cmnd *);
+static int pas16_biosparam(struct scsi_device *, struct block_device *,
+                           sector_t, int*);
+static int pas16_detect(Scsi_Host_Template *);
+static int pas16_queue_command(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
+static int pas16_bus_reset(Scsi_Cmnd *);
+static int pas16_host_reset(Scsi_Cmnd *);
+static int pas16_device_reset(Scsi_Cmnd *);
+
+#ifndef CMD_PER_LUN
+#define CMD_PER_LUN 2
+#endif
+
+#ifndef CAN_QUEUE
+#define CAN_QUEUE 32 
+#endif
+
+#ifndef HOSTS_C
+
+#define NCR5380_implementation_fields \
+    volatile unsigned short io_port
+
+#define NCR5380_local_declare() \
+    volatile unsigned short io_port
+
+#define NCR5380_setup(instance) \
+    io_port = (instance)->io_port
+
+#define PAS16_io_port(reg) ( io_port + pas16_offset[(reg)] )
+
+#if !(PDEBUG & PDEBUG_TRANSFER) 
+#define NCR5380_read(reg) ( inb(PAS16_io_port(reg)) )
+#define NCR5380_write(reg, value) ( outb((value),PAS16_io_port(reg)) )
+#else
+#define NCR5380_read(reg)                                               \
+    (((unsigned char) printk("scsi%d : read register %d at io_port %04x\n"\
+    , instance->hostno, (reg), PAS16_io_port(reg))), inb( PAS16_io_port(reg)) )
+
+#define NCR5380_write(reg, value)                                       \
+    (printk("scsi%d : write %02x to register %d at io_port %04x\n",     \
+            instance->hostno, (value), (reg), PAS16_io_port(reg)),      \
+    outb( (value),PAS16_io_port(reg) ) )
+
+#endif
+
+
+#define NCR5380_intr pas16_intr
+#define do_NCR5380_intr do_pas16_intr
+#define NCR5380_queue_command pas16_queue_command
+#define NCR5380_abort pas16_abort
+#define NCR5380_device_reset pas16_device_reset
+#define NCR5380_bus_reset pas16_bus_reset
+#define NCR5380_host_reset pas16_host_reset
+#define NCR5380_proc_info pas16_proc_info
+
+/* 15 14 12 10 7 5 3 
+   1101 0100 1010 1000 */
+   
+#define PAS16_IRQS 0xd4a8 
+
+#endif /* else def HOSTS_C */
+#endif /* ndef ASM */
+#endif /* PAS16_H */