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!
diff --git a/drivers/scsi/arm/ecoscsi.c b/drivers/scsi/arm/ecoscsi.c
new file mode 100644
index 0000000..303648a
--- /dev/null
+++ b/drivers/scsi/arm/ecoscsi.c
@@ -0,0 +1,239 @@
+#define AUTOSENSE
+/* #define PSEUDO_DMA */
+
+/*
+ * EcoSCSI Generic NCR5380 driver
+ *
+ * Copyright 1995, Russell King
+ *
+ * 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
+ */
+
+#include <linux/module.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+
+#include <asm/io.h>
+#include <asm/system.h>
+
+#include "../scsi.h"
+#include <scsi/scsi_host.h>
+
+#define NCR5380_implementation_fields int port, ctrl
+#define NCR5380_local_declare() struct Scsi_Host *_instance
+#define NCR5380_setup(instance) _instance = instance
+
+#define NCR5380_read(reg) ecoscsi_read(_instance, reg)
+#define NCR5380_write(reg, value) ecoscsi_write(_instance, reg, value)
+
+#define NCR5380_intr ecoscsi_intr
+#define NCR5380_queue_command ecoscsi_queue_command
+#define NCR5380_proc_info ecoscsi_proc_info
+
+#include "../NCR5380.h"
+
+#define ECOSCSI_PUBLIC_RELEASE 1
+
+static char ecoscsi_read(struct Scsi_Host *instance, int reg)
+{
+ int iobase = instance->io_port;
+ outb(reg | 8, iobase);
+ return inb(iobase + 1);
+}
+
+static void ecoscsi_write(struct Scsi_Host *instance, int reg, int value)
+{
+ int iobase = instance->io_port;
+ outb(reg | 8, iobase);
+ outb(value, iobase + 1);
+}
+
+/*
+ * Function : ecoscsi_setup(char *str, int *ints)
+ *
+ * Purpose : LILO command line initialization of the overrides array,
+ *
+ * Inputs : str - unused, ints - array of integer parameters with ints[0]
+ * equal to the number of ints.
+ *
+ */
+
+void ecoscsi_setup(char *str, int *ints)
+{
+}
+
+const char * ecoscsi_info (struct Scsi_Host *spnt)
+{
+ return "";
+}
+
+#if 0
+#define STAT(p) inw(p + 144)
+
+static inline int NCR5380_pwrite(struct Scsi_Host *host, unsigned char *addr,
+ int len)
+{
+ int iobase = host->io_port;
+printk("writing %p len %d\n",addr, len);
+ if(!len) return -1;
+
+ while(1)
+ {
+ int status;
+ while(((status = STAT(iobase)) & 0x100)==0);
+ }
+}
+
+static inline int NCR5380_pread(struct Scsi_Host *host, unsigned char *addr,
+ int len)
+{
+ int iobase = host->io_port;
+ int iobase2= host->io_port + 0x100;
+ unsigned char *start = addr;
+ int s;
+printk("reading %p len %d\n",addr, len);
+ outb(inb(iobase + 128), iobase + 135);
+ while(len > 0)
+ {
+ int status,b,i, timeout;
+ timeout = 0x07FFFFFF;
+ while(((status = STAT(iobase)) & 0x100)==0)
+ {
+ timeout--;
+ if(status & 0x200 || !timeout)
+ {
+ printk("status = %p\n",status);
+ outb(0, iobase + 135);
+ return 1;
+ }
+ }
+ if(len >= 128)
+ {
+ for(i=0; i<64; i++)
+ {
+ b = inw(iobase + 136);
+ *addr++ = b;
+ *addr++ = b>>8;
+ }
+ len -= 128;
+ }
+ else
+ {
+ b = inw(iobase + 136);
+ *addr ++ = b;
+ len -= 1;
+ if(len)
+ *addr ++ = b>>8;
+ len -= 1;
+ }
+ }
+ outb(0, iobase + 135);
+ printk("first bytes = %02X %02X %02X %20X %02X %02X %02X\n",*start, start[1], start[2], start[3], start[4], start[5], start[6]);
+ return 1;
+}
+#endif
+#undef STAT
+
+#define BOARD_NORMAL 0
+#define BOARD_NCR53C400 1
+
+#include "../NCR5380.c"
+
+static Scsi_Host_Template ecoscsi_template = {
+ .module = THIS_MODULE,
+ .name = "Serial Port EcoSCSI NCR5380",
+ .proc_name = "ecoscsi",
+ .info = ecoscsi_info,
+ .queuecommand = ecoscsi_queue_command,
+ .eh_abort_handler = NCR5380_abort,
+ .eh_device_reset_handler= NCR5380_device_reset,
+ .eh_bus_reset_handler = NCR5380_bus_reset,
+ .eh_host_reset_handler = NCR5380_host_reset,
+ .can_queue = 16,
+ .this_id = 7,
+ .sg_tablesize = SG_ALL,
+ .cmd_per_lun = 2,
+ .use_clustering = DISABLE_CLUSTERING
+};
+
+static struct Scsi_Host *host;
+
+static int __init ecoscsi_init(void)
+{
+
+ host = scsi_host_alloc(tpnt, sizeof(struct NCR5380_hostdata));
+ if (!host)
+ return 0;
+
+ host->io_port = 0x80ce8000;
+ host->n_io_port = 144;
+ host->irq = IRQ_NONE;
+
+ if (!(request_region(host->io_port, host->n_io_port, "ecoscsi")) )
+ goto unregister_scsi;
+
+ ecoscsi_write(host, MODE_REG, 0x20); /* Is it really SCSI? */
+ if (ecoscsi_read(host, MODE_REG) != 0x20) /* Write to a reg. */
+ goto release_reg;
+
+ ecoscsi_write(host, MODE_REG, 0x00 ); /* it back. */
+ if (ecoscsi_read(host, MODE_REG) != 0x00)
+ goto release_reg;
+
+ NCR5380_init(host, 0);
+
+ printk("scsi%d: at port 0x%08lx irqs disabled", host->host_no, host->io_port);
+ printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d",
+ host->can_queue, host->cmd_per_lun, ECOSCSI_PUBLIC_RELEASE);
+ printk("\nscsi%d:", host->host_no);
+ NCR5380_print_options(host);
+ printk("\n");
+
+ scsi_add_host(host, NULL); /* XXX handle failure */
+ scsi_scan_host(host);
+ return 0;
+
+release_reg:
+ release_region(host->io_port, host->n_io_port);
+unregister_scsi:
+ scsi_host_put(host);
+ return -ENODEV;
+}
+
+static void __exit ecoscsi_exit(void)
+{
+ scsi_remove_host(host);
+
+ if (shpnt->irq != IRQ_NONE)
+ free_irq(shpnt->irq, NULL);
+ NCR5380_exit(host);
+ if (shpnt->io_port)
+ release_region(shpnt->io_port, shpnt->n_io_port);
+
+ scsi_host_put(host);
+ return 0;
+}
+
+module_init(ecoscsi_init);
+module_exit(ecoscsi_exit);
+
+MODULE_AUTHOR("Russell King");
+MODULE_DESCRIPTION("Econet-SCSI driver for Acorn machines");
+MODULE_LICENSE("GPL");
+