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, 947 insertions, 0 deletions

diff --git a/drivers/scsi/g_NCR5380.c b/drivers/scsi/g_NCR5380.c
new file mode 100644
index 000000000000..ca9d5bd26ca3
--- /dev/null
+++ b/drivers/scsi/g_NCR5380.c
@@ -0,0 +1,947 @@
+/*
+ * Generic Generic NCR5380 driver
+ *      
+ * Copyright 1993, Drew Eckhardt
+ *      Visionary Computing
+ *      (Unix and Linux consulting and custom programming)
+ *      drew@colorado.edu
+ *      +1 (303) 440-4894
+ *
+ * NCR53C400 extensions (c) 1994,1995,1996, Kevin Lentin
+ *    K.Lentin@cs.monash.edu.au
+ *
+ * NCR53C400A extensions (c) 1996, Ingmar Baumgart
+ *    ingmar@gonzo.schwaben.de
+ *
+ * DTC3181E extensions (c) 1997, Ronald van Cuijlenborg
+ * ronald.van.cuijlenborg@tip.nl or nutty@dds.nl
+ *
+ * Added ISAPNP support for DTC436 adapters,
+ * Thomas Sailer, sailer@ife.ee.ethz.ch
+ *
+ * ALPHA RELEASE 1. 
+ *
+ * For more information, please consult 
+ *
+ * NCR 5380 Family
+ * SCSI Protocol Controller
+ * Databook
+ *
+ * NCR Microelectronics
+ * 1635 Aeroplaza Drive
+ * Colorado Springs, CO 80916
+ * 1+ (719) 578-3400
+ * 1+ (800) 334-5454
+ */
+
+/* 
+ * TODO : flesh out DMA support, find some one actually using this (I have
+ *      a memory mapped Trantor board that works fine)
+ */
+
+/*
+ * Options :
+ *
+ * PARITY - enable parity checking.  Not supported.
+ *
+ * SCSI2 - enable support for SCSI-II tagged queueing.  Untested.
+ *
+ * USLEEP - enable support for devices that don't disconnect.  Untested.
+ *
+ * The card is detected and initialized in one of several ways : 
+ * 1.  With command line overrides - NCR5380=port,irq may be 
+ *     used on the LILO command line to override the defaults.
+ *
+ * 2.  With the GENERIC_NCR5380_OVERRIDE compile time define.  This is 
+ *     specified as an array of address, irq, dma, board tuples.  Ie, for
+ *     one board at 0x350, IRQ5, no dma, I could say  
+ *     -DGENERIC_NCR5380_OVERRIDE={{0xcc000, 5, DMA_NONE, BOARD_NCR5380}}
+ * 
+ * -1 should be specified for no or DMA interrupt, -2 to autoprobe for an 
+ *      IRQ line if overridden on the command line.
+ *
+ * 3.  When included as a module, with arguments passed on the command line:
+ *         ncr_irq=xx   the interrupt
+ *         ncr_addr=xx  the port or base address (for port or memory
+ *                      mapped, resp.)
+ *         ncr_dma=xx   the DMA
+ *         ncr_5380=1   to set up for a NCR5380 board
+ *         ncr_53c400=1 to set up for a NCR53C400 board
+ *     e.g.
+ *     modprobe g_NCR5380 ncr_irq=5 ncr_addr=0x350 ncr_5380=1
+ *       for a port mapped NCR5380 board or
+ *     modprobe g_NCR5380 ncr_irq=255 ncr_addr=0xc8000 ncr_53c400=1
+ *       for a memory mapped NCR53C400 board with interrupts disabled.
+ * 
+ * 255 should be specified for no or DMA interrupt, 254 to autoprobe for an 
+ *      IRQ line if overridden on the command line.
+ *     
+ */
+
+/*
+ * $Log: generic_NCR5380.c,v $
+ */
+
+/* settings for DTC3181E card with only Mustek scanner attached */
+#define USLEEP
+#define USLEEP_POLL     1
+#define USLEEP_SLEEP    20
+#define USLEEP_WAITLONG 500
+
+#define AUTOPROBE_IRQ
+#define AUTOSENSE
+
+#include <linux/config.h>
+
+#ifdef CONFIG_SCSI_GENERIC_NCR53C400
+#define NCR53C400_PSEUDO_DMA 1
+#define PSEUDO_DMA
+#define NCR53C400
+#define NCR5380_STATS
+#undef NCR5380_STAT_LIMIT
+#endif
+
+#include <asm/system.h>
+#include <asm/io.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/blkdev.h>
+#include "scsi.h"
+#include <scsi/scsi_host.h>
+#include "g_NCR5380.h"
+#include "NCR5380.h"
+#include <linux/stat.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/isapnp.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+
+#define NCR_NOT_SET 0
+static int ncr_irq = NCR_NOT_SET;
+static int ncr_dma = NCR_NOT_SET;
+static int ncr_addr = NCR_NOT_SET;
+static int ncr_5380 = NCR_NOT_SET;
+static int ncr_53c400 = NCR_NOT_SET;
+static int ncr_53c400a = NCR_NOT_SET;
+static int dtc_3181e = NCR_NOT_SET;
+
+static struct override {
+        NCR5380_implementation_fields;
+        int irq;
+        int dma;
+        int board;              /* Use NCR53c400, Ricoh, etc. extensions ? */
+} overrides
+#ifdef GENERIC_NCR5380_OVERRIDE
+[] __initdata = GENERIC_NCR5380_OVERRIDE;
+#else
+[1] __initdata = { { 0,},};
+#endif
+
+
+#define NO_OVERRIDES (sizeof(overrides) / sizeof(struct override))
+
+#ifndef MODULE 
+
+/**
+ *      internal_setup          -       handle lilo command string override
+ *      @board: BOARD_* identifier for the board
+ *      @str: unused
+ *      @ints: numeric parameters
+ *
+ *      Do LILO command line initialization of the overrides array. Display
+ *      errors when needed
+ *
+ *      Locks: none
+ */
+
+static void __init internal_setup(int board, char *str, int *ints)
+{
+        static int commandline_current = 0;
+        switch (board) {
+        case BOARD_NCR5380:
+                if (ints[0] != 2 && ints[0] != 3) {
+                        printk(KERN_ERR "generic_NCR5380_setup : usage ncr5380=" STRVAL(NCR5380_map_name) ",irq,dma\n");
+                        return;
+                }
+                break;
+        case BOARD_NCR53C400:
+                if (ints[0] != 2) {
+                        printk(KERN_ERR "generic_NCR53C400_setup : usage ncr53c400=" STRVAL(NCR5380_map_name) ",irq\n");
+                        return;
+                }
+                break;
+        case BOARD_NCR53C400A:
+                if (ints[0] != 2) {
+                        printk(KERN_ERR "generic_NCR53C400A_setup : usage ncr53c400a=" STRVAL(NCR5380_map_name) ",irq\n");
+                        return;
+                }
+                break;
+        case BOARD_DTC3181E:
+                if (ints[0] != 2) {
+                        printk("generic_DTC3181E_setup : usage dtc3181e=" STRVAL(NCR5380_map_name) ",irq\n");
+                        return;
+                }
+                break;
+        }
+
+        if (commandline_current < NO_OVERRIDES) {
+                overrides[commandline_current].NCR5380_map_name = (NCR5380_map_type) ints[1];
+                overrides[commandline_current].irq = ints[2];
+                if (ints[0] == 3)
+                        overrides[commandline_current].dma = ints[3];
+                else
+                        overrides[commandline_current].dma = DMA_NONE;
+                overrides[commandline_current].board = board;
+                ++commandline_current;
+        }
+}
+
+
+/**
+ *      do_NCR53C80_setup               -       set up entry point
+ *      @str: unused
+ *
+ *      Setup function invoked at boot to parse the ncr5380= command
+ *      line.
+ */
+
+static int __init do_NCR5380_setup(char *str)
+{
+        int ints[10];
+
+        get_options(str, sizeof(ints) / sizeof(int), ints);
+        internal_setup(BOARD_NCR5380, str, ints);
+        return 1;
+}
+
+/**
+ *      do_NCR53C400_setup              -       set up entry point
+ *      @str: unused
+ *      @ints: integer parameters from kernel setup code 
+ *
+ *      Setup function invoked at boot to parse the ncr53c400= command
+ *      line.
+ */
+
+static int __init do_NCR53C400_setup(char *str)
+{
+        int ints[10];
+
+        get_options(str, sizeof(ints) / sizeof(int), ints);
+        internal_setup(BOARD_NCR53C400, str, ints);
+        return 1;
+}
+
+/**
+ *      do_NCR53C400A_setup     -       set up entry point
+ *      @str: unused
+ *      @ints: integer parameters from kernel setup code 
+ *
+ *      Setup function invoked at boot to parse the ncr53c400a= command
+ *      line.
+ */
+
+static int __init do_NCR53C400A_setup(char *str)
+{
+        int ints[10];
+
+        get_options(str, sizeof(ints) / sizeof(int), ints);
+        internal_setup(BOARD_NCR53C400A, str, ints);
+        return 1;
+}
+
+/**
+ *      do_DTC3181E_setup       -       set up entry point
+ *      @str: unused
+ *      @ints: integer parameters from kernel setup code 
+ *
+ *      Setup function invoked at boot to parse the dtc3181e= command
+ *      line.
+ */
+
+static int __init do_DTC3181E_setup(char *str)
+{
+        int ints[10];
+
+        get_options(str, sizeof(ints) / sizeof(int), ints);
+        internal_setup(BOARD_DTC3181E, str, ints);
+        return 1;
+}
+
+#endif
+
+/**
+ *      generic_NCR5380_detect  -       look for NCR5380 controllers
+ *      @tpnt: the scsi template
+ *
+ *      Scan for the present of NCR5380, NCR53C400, NCR53C400A, DTC3181E
+ *      and DTC436(ISAPnP) controllers. If overrides have been set we use
+ *      them.
+ *
+ *      The caller supplied NCR5380_init function is invoked from here, before
+ *      the interrupt line is taken.
+ *
+ *      Locks: none
+ */
+
+int __init generic_NCR5380_detect(Scsi_Host_Template * tpnt)
+{
+        static int current_override = 0;
+        int count, i;
+        unsigned int *ports;
+        unsigned long region_size = 16;
+        static unsigned int __initdata ncr_53c400a_ports[] = {
+                0x280, 0x290, 0x300, 0x310, 0x330, 0x340, 0x348, 0x350, 0
+        };
+        static unsigned int __initdata dtc_3181e_ports[] = {
+                0x220, 0x240, 0x280, 0x2a0, 0x2c0, 0x300, 0x320, 0x340, 0
+        };
+        int flags = 0;
+        struct Scsi_Host *instance;
+
+        if (ncr_irq != NCR_NOT_SET)
+                overrides[0].irq = ncr_irq;
+        if (ncr_dma != NCR_NOT_SET)
+                overrides[0].dma = ncr_dma;
+        if (ncr_addr != NCR_NOT_SET)
+                overrides[0].NCR5380_map_name = (NCR5380_map_type) ncr_addr;
+        if (ncr_5380 != NCR_NOT_SET)
+                overrides[0].board = BOARD_NCR5380;
+        else if (ncr_53c400 != NCR_NOT_SET)
+                overrides[0].board = BOARD_NCR53C400;
+        else if (ncr_53c400a != NCR_NOT_SET)
+                overrides[0].board = BOARD_NCR53C400A;
+        else if (dtc_3181e != NCR_NOT_SET)
+                overrides[0].board = BOARD_DTC3181E;
+
+        if (!current_override && isapnp_present()) {
+                struct pnp_dev *dev = NULL;
+                count = 0;
+                while ((dev = pnp_find_dev(NULL, ISAPNP_VENDOR('D', 'T', 'C'), ISAPNP_FUNCTION(0x436e), dev))) {
+                        if (count >= NO_OVERRIDES)
+                                break;
+                        if (pnp_device_attach(dev) < 0) {
+                                printk(KERN_ERR "dtc436e probe: attach failed\n");
+                                continue;
+                        }
+                        if (pnp_activate_dev(dev) < 0) {
+                                printk(KERN_ERR "dtc436e probe: activate failed\n");
+                                pnp_device_detach(dev);
+                                continue;
+                        }
+                        if (!pnp_port_valid(dev, 0)) {
+                                printk(KERN_ERR "dtc436e probe: no valid port\n");
+                                pnp_device_detach(dev);
+                                continue;
+                        }
+                        if (pnp_irq_valid(dev, 0))
+                                overrides[count].irq = pnp_irq(dev, 0);
+                        else
+                                overrides[count].irq = SCSI_IRQ_NONE;
+                        if (pnp_dma_valid(dev, 0))
+                                overrides[count].dma = pnp_dma(dev, 0);
+                        else
+                                overrides[count].dma = DMA_NONE;
+                        overrides[count].NCR5380_map_name = (NCR5380_map_type) pnp_port_start(dev, 0);
+                        overrides[count].board = BOARD_DTC3181E;
+                        count++;
+                }
+        }
+
+        tpnt->proc_name = "g_NCR5380";
+
+        for (count = 0; current_override < NO_OVERRIDES; ++current_override) {
+                if (!(overrides[current_override].NCR5380_map_name))
+                        continue;
+
+                ports = NULL;
+                switch (overrides[current_override].board) {
+                case BOARD_NCR5380:
+                        flags = FLAG_NO_PSEUDO_DMA;
+                        break;
+                case BOARD_NCR53C400:
+                        flags = FLAG_NCR53C400;
+                        break;
+                case BOARD_NCR53C400A:
+                        flags = FLAG_NO_PSEUDO_DMA;
+                        ports = ncr_53c400a_ports;
+                        break;
+                case BOARD_DTC3181E:
+                        flags = FLAG_NO_PSEUDO_DMA | FLAG_DTC3181E;
+                        ports = dtc_3181e_ports;
+                        break;
+                }
+
+#ifndef CONFIG_SCSI_G_NCR5380_MEM
+                if (ports) {
+                        /* wakeup sequence for the NCR53C400A and DTC3181E */
+
+                        /* Disable the adapter and look for a free io port */
+                        outb(0x59, 0x779);
+                        outb(0xb9, 0x379);
+                        outb(0xc5, 0x379);
+                        outb(0xae, 0x379);
+                        outb(0xa6, 0x379);
+                        outb(0x00, 0x379);
+
+                        if (overrides[current_override].NCR5380_map_name != PORT_AUTO)
+                                for (i = 0; ports[i]; i++) {
+                                        if (!request_region(ports[i],  16, "ncr53c80"))
+                                                continue;
+                                        if (overrides[current_override].NCR5380_map_name == ports[i])
+                                                break;
+                                        release_region(ports[i], 16);
+                        } else
+                                for (i = 0; ports[i]; i++) {
+                                        if (!request_region(ports[i],  16, "ncr53c80"))
+                                                continue;
+                                        if (inb(ports[i]) == 0xff)
+                                                break;
+                                        release_region(ports[i], 16);
+                                }
+                        if (ports[i]) {
+                                /* At this point we have our region reserved */
+                                outb(0x59, 0x779);
+                                outb(0xb9, 0x379);
+                                outb(0xc5, 0x379);
+                                outb(0xae, 0x379);
+                                outb(0xa6, 0x379);
+                                outb(0x80 | i, 0x379);  /* set io port to be used */
+                                outb(0xc0, ports[i] + 9);
+                                if (inb(ports[i] + 9) != 0x80)
+                                        continue;
+                                else
+                                        overrides[current_override].NCR5380_map_name = ports[i];
+                        } else
+                                continue;
+                }
+                else
+                {
+                        /* Not a 53C400A style setup - just grab */
+                        if(!(request_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size, "ncr5380")))
+                                continue;
+                        region_size = NCR5380_region_size;
+                }
+#else
+                if(!request_mem_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size, "ncr5380"))
+                        continue;
+#endif
+                instance = scsi_register(tpnt, sizeof(struct NCR5380_hostdata));
+                if (instance == NULL) {
+#ifndef CONFIG_SCSI_G_NCR5380_MEM
+                        release_region(overrides[current_override].NCR5380_map_name, region_size);
+#else
+                        release_mem_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size);
+#endif
+                        continue;
+                }
+
+                instance->NCR5380_instance_name = overrides[current_override].NCR5380_map_name;
+#ifndef CONFIG_SCSI_G_NCR5380_MEM
+                instance->n_io_port = region_size;
+#endif
+
+                NCR5380_init(instance, flags);
+
+                if (overrides[current_override].irq != IRQ_AUTO)
+                        instance->irq = overrides[current_override].irq;
+                else
+                        instance->irq = NCR5380_probe_irq(instance, 0xffff);
+
+                if (instance->irq != SCSI_IRQ_NONE)
+                        if (request_irq(instance->irq, generic_NCR5380_intr, SA_INTERRUPT, "NCR5380", instance)) {
+                                printk(KERN_WARNING "scsi%d : IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq);
+                                instance->irq = SCSI_IRQ_NONE;
+                        }
+
+                if (instance->irq == SCSI_IRQ_NONE) {
+                        printk(KERN_INFO "scsi%d : interrupts not enabled. for better interactive performance,\n", instance->host_no);
+                        printk(KERN_INFO "scsi%d : please jumper the board for a free IRQ.\n", instance->host_no);
+                }
+
+                printk(KERN_INFO "scsi%d : at " STRVAL(NCR5380_map_name) " 0x%x", instance->host_no, (unsigned int) instance->NCR5380_instance_name);
+                if (instance->irq == SCSI_IRQ_NONE)
+                        printk(" interrupts disabled");
+                else
+                        printk(" irq %d", instance->irq);
+                printk(" options CAN_QUEUE=%d  CMD_PER_LUN=%d release=%d", CAN_QUEUE, CMD_PER_LUN, GENERIC_NCR5380_PUBLIC_RELEASE);
+                NCR5380_print_options(instance);
+                printk("\n");
+
+                ++current_override;
+                ++count;
+        }
+        return count;
+}
+
+/**
+ *      generic_NCR5380_info    -       reporting string
+ *      @host: NCR5380 to report on
+ *
+ *      Report driver information for the NCR5380
+ */
+        
+const char *generic_NCR5380_info(struct Scsi_Host *host)
+{
+        static const char string[] = "Generic NCR5380/53C400 Driver";
+        return string;
+}
+
+/**
+ *      generic_NCR5380_release_resources       -       free resources
+ *      @instance: host adapter to clean up 
+ *
+ *      Free the generic interface resources from this adapter.
+ *
+ *      Locks: none
+ */
+ 
+int generic_NCR5380_release_resources(struct Scsi_Host *instance)
+{
+        NCR5380_local_declare();
+        NCR5380_setup(instance);
+        
+        if (instance->irq != SCSI_IRQ_NONE)
+                free_irq(instance->irq, NULL);
+        NCR5380_exit(instance);
+
+#ifndef CONFIG_SCSI_G_NCR5380_MEM
+        release_region(instance->NCR5380_instance_name, instance->n_io_port);
+#else
+        release_mem_region(instance->NCR5380_instance_name, NCR5380_region_size);
+#endif
+
+
+        return 0;
+}
+
+#ifdef BIOSPARAM
+/**
+ *      generic_NCR5380_biosparam
+ *      @disk: disk to compute geometry for
+ *      @dev: device identifier for this disk
+ *      @ip: sizes to fill in
+ *
+ *      Generates a BIOS / DOS compatible H-C-S mapping for the specified 
+ *      device / size.
+ * 
+ *      XXX Most SCSI boards use this mapping, I could be incorrect.  Someone
+ *      using hard disks on a trantor should verify that this mapping
+ *      corresponds to that used by the BIOS / ASPI driver by running the linux
+ *      fdisk program and matching the H_C_S coordinates to what DOS uses.
+ *
+ *      Locks: none
+ */
+
+static int
+generic_NCR5380_biosparam(struct scsi_device *sdev, struct block_device *bdev,
+                          sector_t capacity, int *ip)
+{
+        ip[0] = 64;
+        ip[1] = 32;
+        ip[2] = capacity >> 11;
+        return 0;
+}
+#endif
+
+#if NCR53C400_PSEUDO_DMA
+
+/**
+ *      NCR5380_pread           -       pseudo DMA read
+ *      @instance: adapter to read from
+ *      @dst: buffer to read into
+ *      @len: buffer length
+ *
+ *      Perform a psuedo DMA mode read from an NCR53C400 or equivalent
+ *      controller
+ */
+ 
+static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *dst, int len)
+{
+        int blocks = len / 128;
+        int start = 0;
+        int bl;
+
+        NCR5380_local_declare();
+        NCR5380_setup(instance);
+
+        NCR5380_write(C400_CONTROL_STATUS_REG, CSR_BASE | CSR_TRANS_DIR);
+        NCR5380_write(C400_BLOCK_COUNTER_REG, blocks);
+        while (1) {
+                if ((bl = NCR5380_read(C400_BLOCK_COUNTER_REG)) == 0) {
+                        break;
+                }
+                if (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ) {
+                        printk(KERN_ERR "53C400r: Got 53C80_IRQ start=%d, blocks=%d\n", start, blocks);
+                        return -1;
+                }
+                while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY);
+
+#ifndef CONFIG_SCSI_G_NCR5380_MEM
+                {
+                        int i;
+                        for (i = 0; i < 128; i++)
+                                dst[start + i] = NCR5380_read(C400_HOST_BUFFER);
+                }
+#else
+                /* implies CONFIG_SCSI_G_NCR5380_MEM */
+                isa_memcpy_fromio(dst + start, NCR53C400_host_buffer + NCR5380_map_name, 128);
+#endif
+                start += 128;
+                blocks--;
+        }
+
+        if (blocks) {
+                while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
+                {
+                        // FIXME - no timeout
+                }
+
+#ifndef CONFIG_SCSI_G_NCR5380_MEM
+                {
+                        int i;  
+                        for (i = 0; i < 128; i++)
+                                dst[start + i] = NCR5380_read(C400_HOST_BUFFER);
+                }
+#else
+                /* implies CONFIG_SCSI_G_NCR5380_MEM */
+                isa_memcpy_fromio(dst + start, NCR53C400_host_buffer + NCR5380_map_name, 128);
+#endif
+                start += 128;
+                blocks--;
+        }
+
+        if (!(NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ))
+                printk("53C400r: no 53C80 gated irq after transfer");
+
+#if 0
+        /*
+         *      DON'T DO THIS - THEY NEVER ARRIVE!
+         */
+        printk("53C400r: Waiting for 53C80 registers\n");
+        while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_53C80_REG)
+                ;
+#endif
+        if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_END_DMA_TRANSFER))
+                printk(KERN_ERR "53C400r: no end dma signal\n");
+                
+        NCR5380_write(MODE_REG, MR_BASE);
+        NCR5380_read(RESET_PARITY_INTERRUPT_REG);
+        return 0;
+}
+
+/**
+ *      NCR5380_write           -       pseudo DMA write
+ *      @instance: adapter to read from
+ *      @dst: buffer to read into
+ *      @len: buffer length
+ *
+ *      Perform a psuedo DMA mode read from an NCR53C400 or equivalent
+ *      controller
+ */
+
+static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *src, int len)
+{
+        int blocks = len / 128;
+        int start = 0;
+        int bl;
+        int i;
+
+        NCR5380_local_declare();
+        NCR5380_setup(instance);
+
+        NCR5380_write(C400_CONTROL_STATUS_REG, CSR_BASE);
+        NCR5380_write(C400_BLOCK_COUNTER_REG, blocks);
+        while (1) {
+                if (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ) {
+                        printk(KERN_ERR "53C400w: Got 53C80_IRQ start=%d, blocks=%d\n", start, blocks);
+                        return -1;
+                }
+
+                if ((bl = NCR5380_read(C400_BLOCK_COUNTER_REG)) == 0) {
+                        break;
+                }
+                while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
+                        ; // FIXME - timeout
+#ifndef CONFIG_SCSI_G_NCR5380_MEM
+                {
+                        for (i = 0; i < 128; i++)
+                                NCR5380_write(C400_HOST_BUFFER, src[start + i]);
+                }
+#else
+                /* implies CONFIG_SCSI_G_NCR5380_MEM */
+                isa_memcpy_toio(NCR53C400_host_buffer + NCR5380_map_name, src + start, 128);
+#endif
+                start += 128;
+                blocks--;
+        }
+        if (blocks) {
+                while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
+                        ; // FIXME - no timeout
+
+#ifndef CONFIG_SCSI_G_NCR5380_MEM
+                {
+                        for (i = 0; i < 128; i++)
+                                NCR5380_write(C400_HOST_BUFFER, src[start + i]);
+                }
+#else
+                /* implies CONFIG_SCSI_G_NCR5380_MEM */
+                isa_memcpy_toio(NCR53C400_host_buffer + NCR5380_map_name, src + start, 128);
+#endif
+                start += 128;
+                blocks--;
+        }
+
+#if 0
+        printk("53C400w: waiting for registers to be available\n");
+        THEY NEVER DO ! while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_53C80_REG);
+        printk("53C400w: Got em\n");
+#endif
+
+        /* Let's wait for this instead - could be ugly */
+        /* All documentation says to check for this. Maybe my hardware is too
+         * fast. Waiting for it seems to work fine! KLL
+         */
+        while (!(i = NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ))
+                ;       // FIXME - no timeout
+
+        /*
+         * I know. i is certainly != 0 here but the loop is new. See previous
+         * comment.
+         */
+        if (i) {
+                if (!((i = NCR5380_read(BUS_AND_STATUS_REG)) & BASR_END_DMA_TRANSFER))
+                        printk(KERN_ERR "53C400w: No END OF DMA bit - WHOOPS! BASR=%0x\n", i);
+        } else
+                printk(KERN_ERR "53C400w: no 53C80 gated irq after transfer (last block)\n");
+
+#if 0
+        if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_END_DMA_TRANSFER)) {
+                printk(KERN_ERR "53C400w: no end dma signal\n");
+        }
+#endif
+        while (!(NCR5380_read(TARGET_COMMAND_REG) & TCR_LAST_BYTE_SENT))
+                ;       // TIMEOUT
+        return 0;
+}
+#endif                          /* PSEUDO_DMA */
+
+/*
+ *      Include the NCR5380 core code that we build our driver around   
+ */
+ 
+#include "NCR5380.c"
+
+#define PRINTP(x) len += sprintf(buffer+len, x)
+#define ANDP ,
+
+static int sprint_opcode(char *buffer, int len, int opcode)
+{
+        int start = len;
+        PRINTP("0x%02x " ANDP opcode);
+        return len - start;
+}
+
+static int sprint_command(char *buffer, int len, unsigned char *command)
+{
+        int i, s, start = len;
+        len += sprint_opcode(buffer, len, command[0]);
+        for (i = 1, s = COMMAND_SIZE(command[0]); i < s; ++i)
+                PRINTP("%02x " ANDP command[i]);
+        PRINTP("\n");
+        return len - start;
+}
+
+/**
+ *      sprintf_Scsi_Cmnd       -       print a scsi command
+ *      @buffer: buffr to print into
+ *      @len: buffer length
+ *      @cmd: SCSI command block
+ *      
+ *      Print out the target and command data in hex
+ */
+
+static int sprint_Scsi_Cmnd(char *buffer, int len, Scsi_Cmnd * cmd)
+{
+        int start = len;
+        PRINTP("host number %d destination target %d, lun %d\n" ANDP cmd->device->host->host_no ANDP cmd->device->id ANDP cmd->device->lun);
+        PRINTP("        command = ");
+        len += sprint_command(buffer, len, cmd->cmnd);
+        return len - start;
+}
+
+/**
+ *      generic_NCR5380_proc_info       -       /proc for NCR5380 driver
+ *      @buffer: buffer to print into
+ *      @start: start position
+ *      @offset: offset into buffer
+ *      @len: length
+ *      @hostno: instance to affect
+ *      @inout: read/write
+ *
+ *      Provide the procfs information for the 5380 controller. We fill
+ *      this with useful debugging information including the commands
+ *      being executed, disconnected command queue and the statistical
+ *      data
+ *
+ *      Locks: global cli/lock for queue walk
+ */
+ 
+static int generic_NCR5380_proc_info(struct Scsi_Host *scsi_ptr, char *buffer, char **start, off_t offset, int length, int inout)
+{
+        int len = 0;
+        NCR5380_local_declare();
+        unsigned long flags;
+        unsigned char status;
+        int i;
+        Scsi_Cmnd *ptr;
+        struct NCR5380_hostdata *hostdata;
+#ifdef NCR5380_STATS
+        Scsi_Device *dev;
+        extern const char *const scsi_device_types[MAX_SCSI_DEVICE_CODE];
+#endif
+
+        NCR5380_setup(scsi_ptr);
+        hostdata = (struct NCR5380_hostdata *) scsi_ptr->hostdata;
+
+        spin_lock_irqsave(scsi_ptr->host_lock, flags);
+        PRINTP("SCSI host number %d : %s\n" ANDP scsi_ptr->host_no ANDP scsi_ptr->hostt->name);
+        PRINTP("Generic NCR5380 driver version %d\n" ANDP GENERIC_NCR5380_PUBLIC_RELEASE);
+        PRINTP("NCR5380 core version %d\n" ANDP NCR5380_PUBLIC_RELEASE);
+#ifdef NCR53C400
+        PRINTP("NCR53C400 extension version %d\n" ANDP NCR53C400_PUBLIC_RELEASE);
+        PRINTP("NCR53C400 card%s detected\n" ANDP(((struct NCR5380_hostdata *) scsi_ptr->hostdata)->flags & FLAG_NCR53C400) ? "" : " not");
+# if NCR53C400_PSEUDO_DMA
+        PRINTP("NCR53C400 pseudo DMA used\n");
+# endif
+#else
+        PRINTP("NO NCR53C400 driver extensions\n");
+#endif
+        PRINTP("Using %s mapping at %s 0x%lx, " ANDP STRVAL(NCR5380_map_config) ANDP STRVAL(NCR5380_map_name) ANDP scsi_ptr->NCR5380_instance_name);
+        if (scsi_ptr->irq == SCSI_IRQ_NONE)
+                PRINTP("no interrupt\n");
+        else
+                PRINTP("on interrupt %d\n" ANDP scsi_ptr->irq);
+
+#ifdef NCR5380_STATS
+        if (hostdata->connected || hostdata->issue_queue || hostdata->disconnected_queue)
+                PRINTP("There are commands pending, transfer rates may be crud\n");
+        if (hostdata->pendingr)
+                PRINTP("  %d pending reads" ANDP hostdata->pendingr);
+        if (hostdata->pendingw)
+                PRINTP("  %d pending writes" ANDP hostdata->pendingw);
+        if (hostdata->pendingr || hostdata->pendingw)
+                PRINTP("\n");
+        shost_for_each_device(dev, scsi_ptr) {
+                unsigned long br = hostdata->bytes_read[dev->id];
+                unsigned long bw = hostdata->bytes_write[dev->id];
+                long tr = hostdata->time_read[dev->id] / HZ;
+                long tw = hostdata->time_write[dev->id] / HZ;
+
+                PRINTP("  T:%d %s " ANDP dev->id ANDP(dev->type < MAX_SCSI_DEVICE_CODE) ? scsi_device_types[(int) dev->type] : "Unknown");
+                for (i = 0; i < 8; i++)
+                        if (dev->vendor[i] >= 0x20)
+                                *(buffer + (len++)) = dev->vendor[i];
+                *(buffer + (len++)) = ' ';
+                for (i = 0; i < 16; i++)
+                        if (dev->model[i] >= 0x20)
+                                *(buffer + (len++)) = dev->model[i];
+                *(buffer + (len++)) = ' ';
+                for (i = 0; i < 4; i++)
+                        if (dev->rev[i] >= 0x20)
+                                *(buffer + (len++)) = dev->rev[i];
+                *(buffer + (len++)) = ' ';
+
+                PRINTP("\n%10ld kb read    in %5ld secs" ANDP br / 1024 ANDP tr);
+                if (tr)
+                        PRINTP(" @ %5ld bps" ANDP br / tr);
+
+                PRINTP("\n%10ld kb written in %5ld secs" ANDP bw / 1024 ANDP tw);
+                if (tw)
+                        PRINTP(" @ %5ld bps" ANDP bw / tw);
+                PRINTP("\n");
+        }
+#endif
+
+        status = NCR5380_read(STATUS_REG);
+        if (!(status & SR_REQ))
+                PRINTP("REQ not asserted, phase unknown.\n");
+        else {
+                for (i = 0; (phases[i].value != PHASE_UNKNOWN) && (phases[i].value != (status & PHASE_MASK)); ++i);
+                PRINTP("Phase %s\n" ANDP phases[i].name);
+        }
+
+        if (!hostdata->connected) {
+                PRINTP("No currently connected command\n");
+        } else {
+                len += sprint_Scsi_Cmnd(buffer, len, (Scsi_Cmnd *) hostdata->connected);
+        }
+
+        PRINTP("issue_queue\n");
+
+        for (ptr = (Scsi_Cmnd *) hostdata->issue_queue; ptr; ptr = (Scsi_Cmnd *) ptr->host_scribble)
+                len += sprint_Scsi_Cmnd(buffer, len, ptr);
+
+        PRINTP("disconnected_queue\n");
+
+        for (ptr = (Scsi_Cmnd *) hostdata->disconnected_queue; ptr; ptr = (Scsi_Cmnd *) ptr->host_scribble)
+                len += sprint_Scsi_Cmnd(buffer, len, ptr);
+
+        *start = buffer + offset;
+        len -= offset;
+        if (len > length)
+                len = length;
+        spin_unlock_irqrestore(scsi_ptr->host_lock, flags);
+        return len;
+}
+
+#undef PRINTP
+#undef ANDP
+
+static Scsi_Host_Template driver_template = {
+        .proc_info              = generic_NCR5380_proc_info,
+        .name                   = "Generic NCR5380/NCR53C400 Scsi Driver",
+        .detect                 = generic_NCR5380_detect,
+        .release                = generic_NCR5380_release_resources,
+        .info                   = generic_NCR5380_info,
+        .queuecommand           = generic_NCR5380_queue_command,
+        .eh_abort_handler       = generic_NCR5380_abort,
+        .eh_bus_reset_handler   = generic_NCR5380_bus_reset,
+        .eh_device_reset_handler = generic_NCR5380_device_reset,
+        .eh_host_reset_handler  = generic_NCR5380_host_reset,
+        .bios_param             = NCR5380_BIOSPARAM,
+        .can_queue              = CAN_QUEUE,
+        .this_id                = 7,
+        .sg_tablesize           = SG_ALL,
+        .cmd_per_lun            = CMD_PER_LUN,
+        .use_clustering         = DISABLE_CLUSTERING,
+};
+#include <linux/module.h>
+#include "scsi_module.c"
+
+module_param(ncr_irq, int, 0);
+module_param(ncr_dma, int, 0);
+module_param(ncr_addr, int, 0);
+module_param(ncr_5380, int, 0);
+module_param(ncr_53c400, int, 0);
+module_param(ncr_53c400a, int, 0);
+module_param(dtc_3181e, int, 0);
+MODULE_LICENSE("GPL");
+
+
+static struct isapnp_device_id id_table[] __devinitdata = {
+        {
+         ISAPNP_ANY_ID, ISAPNP_ANY_ID,
+         ISAPNP_VENDOR('D', 'T', 'C'), ISAPNP_FUNCTION(0x436e),
+         0},
+        {0}
+};
+
+MODULE_DEVICE_TABLE(isapnp, id_table);
+
+
+__setup("ncr5380=", do_NCR5380_setup);
+__setup("ncr53c400=", do_NCR53C400_setup);
+__setup("ncr53c400a=", do_NCR53C400A_setup);
+__setup("dtc3181e=", do_DTC3181E_setup);