Linux-2.6.12-rc2v2.6.12-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, 155 insertions, 0 deletions

diff --git a/drivers/scsi/t128.h b/drivers/scsi/t128.h
new file mode 100644
index 000000000000..161ba53d982b
--- /dev/null
+++ b/drivers/scsi/t128.h
@@ -0,0 +1,155 @@
+/*
+ * Trantor T128/T128F/T228 defines
+ *      Note : architecturally, the T100 and T128 are different and won't work
+ *
+ * Copyright 1993, Drew Eckhardt
+ *      Visionary Computing
+ *      (Unix and Linux consulting and custom programming)
+ *      drew@colorado.edu
+ *      +1 (303) 440-4894
+ *
+ * DISTRIBUTION RELEASE 3. 
+ *
+ * For more information, please consult 
+ *
+ * Trantor Systems, Ltd.
+ * T128/T128F/T228 SCSI Host Adapter
+ * Hardware Specifications
+ * 
+ * Trantor Systems, Ltd. 
+ * 5415 Randall Place
+ * Fremont, CA 94538
+ * 1+ (415) 770-1400, FAX 1+ (415) 770-9910
+ * 
+ * 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
+ */
+
+/*
+ * $Log: t128.h,v $
+ */
+
+#ifndef T128_H
+#define T128_H
+
+#define T128_PUBLIC_RELEASE 3
+
+#define TDEBUG_INIT     0x1
+#define TDEBUG_TRANSFER 0x2
+
+/*
+ * The trantor boards are memory mapped. They use an NCR5380 or 
+ * equivalent (my sample board had part second sourced from ZILOG).
+ * NCR's recommended "Pseudo-DMA" architecture is used, where 
+ * a PAL drives the DMA signals on the 5380 allowing fast, blind
+ * transfers with proper handshaking. 
+ */
+
+/*
+ * Note : a boot switch is provided for the purpose of informing the 
+ * firmware to boot or not boot from attached SCSI devices.  So, I imagine
+ * there are fewer people who've yanked the ROM like they do on the Seagate
+ * to make bootup faster, and I'll probably use this for autodetection.
+ */
+#define T_ROM_OFFSET            0
+
+/*
+ * Note : my sample board *WAS NOT* populated with the SRAM, so this
+ * can't be used for autodetection without a ROM present.
+ */
+#define T_RAM_OFFSET            0x1800
+
+/*
+ * All of the registers are allocated 32 bytes of address space, except
+ * for the data register (read/write to/from the 5380 in pseudo-DMA mode)
+ */ 
+#define T_CONTROL_REG_OFFSET    0x1c00  /* rw */
+#define T_CR_INT                0x10    /* Enable interrupts */
+#define T_CR_CT                 0x02    /* Reset watchdog timer */
+
+#define T_STATUS_REG_OFFSET     0x1c20  /* ro */
+#define T_ST_BOOT               0x80    /* Boot switch */
+#define T_ST_S3                 0x40    /* User settable switches, */
+#define T_ST_S2                 0x20    /* read 0 when switch is on, 1 off */
+#define T_ST_S1                 0x10
+#define T_ST_PS2                0x08    /* Set for Microchannel 228 */
+#define T_ST_RDY                0x04    /* 5380 DRQ */
+#define T_ST_TIM                0x02    /* indicates 40us watchdog timer fired */
+#define T_ST_ZERO               0x01    /* Always zero */
+
+#define T_5380_OFFSET           0x1d00  /* 8 registers here, see NCR5380.h */
+
+#define T_DATA_REG_OFFSET       0x1e00  /* rw 512 bytes long */
+
+#ifndef ASM
+static int t128_abort(Scsi_Cmnd *);
+static int t128_biosparam(struct scsi_device *, struct block_device *,
+                          sector_t, int*);
+static int t128_detect(Scsi_Host_Template *);
+static int t128_queue_command(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
+static int t128_host_reset(Scsi_Cmnd *);
+static int t128_bus_reset(Scsi_Cmnd *);
+static int t128_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 \
+    void __iomem *base
+
+#define NCR5380_local_declare() \
+    void __iomem *base
+
+#define NCR5380_setup(instance) \
+    base = ((struct NCR5380_hostdata *)(instance->hostdata))->base
+
+#define T128_address(reg) (base + T_5380_OFFSET + ((reg) * 0x20))
+
+#if !(TDEBUG & TDEBUG_TRANSFER) 
+#define NCR5380_read(reg) readb(T128_address(reg))
+#define NCR5380_write(reg, value) writeb((value),(T128_address(reg)))
+#else
+#define NCR5380_read(reg)                                               \
+    (((unsigned char) printk("scsi%d : read register %d at address %08x\n"\
+    , instance->hostno, (reg), T128_address(reg))), readb(T128_address(reg)))
+
+#define NCR5380_write(reg, value) {                                     \
+    printk("scsi%d : write %02x to register %d at address %08x\n",      \
+            instance->hostno, (value), (reg), T128_address(reg));       \
+    writeb((value), (T128_address(reg)));                               \
+}
+#endif
+
+#define NCR5380_intr t128_intr
+#define do_NCR5380_intr do_t128_intr
+#define NCR5380_queue_command t128_queue_command
+#define NCR5380_abort t128_abort
+#define NCR5380_host_reset t128_host_reset
+#define NCR5380_device_reset t128_device_reset
+#define NCR5380_bus_reset t128_bus_reset
+#define NCR5380_proc_info t128_proc_info
+
+/* 15 14 12 10 7 5 3 
+   1101 0100 1010 1000 */
+   
+#define T128_IRQS 0xc4a8 
+
+#endif /* else def HOSTS_C */
+#endif /* ndef ASM */
+#endif /* T128_H */