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, 230 insertions, 0 deletions

diff --git a/drivers/scsi/qlogicfas.c b/drivers/scsi/qlogicfas.c
new file mode 100644
index 000000000000..a1adb38f69bb
--- /dev/null
+++ b/drivers/scsi/qlogicfas.c
@@ -0,0 +1,230 @@
+/*
+ * Qlogic FAS408 ISA card driver
+ *
+ * Copyright 1994, Tom Zerucha.   
+ * tz@execpc.com
+ * 
+ * Redistributable under terms of the GNU General Public License
+ *
+ * For the avoidance of doubt the "preferred form" of this code is one which
+ * is in an open non patent encumbered format. Where cryptographic key signing
+ * forms part of the process of creating an executable the information
+ * including keys needed to generate an equivalently functional executable
+ * are deemed to be part of the source code.
+ *
+ * Check qlogicfas408.c for more credits and info.
+ */
+
+#include <linux/module.h>
+#include <linux/blkdev.h>               /* to get disk capacity */
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/proc_fs.h>
+#include <linux/unistd.h>
+#include <linux/spinlock.h>
+#include <linux/stat.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/dma.h>
+
+#include "scsi.h"
+#include <scsi/scsi_host.h>
+#include "qlogicfas408.h"
+
+/* Set the following to 2 to use normal interrupt (active high/totempole-
+ * tristate), otherwise use 0 (REQUIRED FOR PCMCIA) for active low, open
+ * drain
+ */
+#define INT_TYPE        2
+
+static char qlogicfas_name[] = "qlogicfas";
+
+/*
+ *      Look for qlogic card and init if found 
+ */
+ 
+static struct Scsi_Host *__qlogicfas_detect(Scsi_Host_Template *host,
+                                                                int qbase,
+                                                                int qlirq)
+{
+        int qltyp;              /* type of chip */
+        int qinitid;
+        struct Scsi_Host *hreg; /* registered host structure */
+        struct qlogicfas408_priv *priv;
+
+        /*      Qlogic Cards only exist at 0x230 or 0x330 (the chip itself
+         *      decodes the address - I check 230 first since MIDI cards are
+         *      typically at 0x330
+         *
+         *      Theoretically, two Qlogic cards can coexist in the same system.
+         *      This should work by simply using this as a loadable module for
+         *      the second card, but I haven't tested this.
+         */
+
+        if (!qbase || qlirq == -1)
+                goto err;
+
+        if (!request_region(qbase, 0x10, qlogicfas_name)) {
+                printk(KERN_INFO "%s: address %#x is busy\n", qlogicfas_name,
+                                                              qbase);
+                goto err;
+        }
+
+        if (!qlogicfas408_detect(qbase, INT_TYPE)) {
+                printk(KERN_WARNING "%s: probe failed for %#x\n",
+                                                                qlogicfas_name,
+                                                                qbase);
+                goto err_release_mem;
+        }
+
+        printk(KERN_INFO "%s: Using preset base address of %03x,"
+                         " IRQ %d\n", qlogicfas_name, qbase, qlirq);
+
+        qltyp = qlogicfas408_get_chip_type(qbase, INT_TYPE);
+        qinitid = host->this_id;
+        if (qinitid < 0)
+                qinitid = 7;    /* if no ID, use 7 */
+
+        qlogicfas408_setup(qbase, qinitid, INT_TYPE);
+
+        hreg = scsi_host_alloc(host, sizeof(struct qlogicfas408_priv));
+        if (!hreg)
+                goto err_release_mem;
+        priv = get_priv_by_host(hreg);
+        hreg->io_port = qbase;
+        hreg->n_io_port = 16;
+        hreg->dma_channel = -1;
+        if (qlirq != -1)
+                hreg->irq = qlirq;
+        priv->qbase = qbase;
+        priv->qlirq = qlirq;
+        priv->qinitid = qinitid;
+        priv->shost = hreg;
+        priv->int_type = INT_TYPE;
+
+        sprintf(priv->qinfo,
+                "Qlogicfas Driver version 0.46, chip %02X at %03X, IRQ %d, TPdma:%d",
+                qltyp, qbase, qlirq, QL_TURBO_PDMA);
+        host->name = qlogicfas_name;
+
+        if (request_irq(qlirq, qlogicfas408_ihandl, 0, qlogicfas_name, hreg))
+                goto free_scsi_host;
+
+        if (scsi_add_host(hreg, NULL))
+                goto free_interrupt;
+
+        scsi_scan_host(hreg);
+
+        return hreg;
+
+free_interrupt:
+        free_irq(qlirq, hreg);
+
+free_scsi_host:
+        scsi_host_put(hreg);
+
+err_release_mem:
+        release_region(qbase, 0x10);
+err:
+        return NULL;
+}
+
+#define MAX_QLOGICFAS   8
+static struct qlogicfas408_priv *cards;
+static int iobase[MAX_QLOGICFAS];
+static int irq[MAX_QLOGICFAS] = { [0 ... MAX_QLOGICFAS-1] = -1 };
+module_param_array(iobase, int, NULL, 0);
+module_param_array(irq, int, NULL, 0);
+MODULE_PARM_DESC(iobase, "I/O address");
+MODULE_PARM_DESC(irq, "IRQ");
+
+static int __devinit qlogicfas_detect(Scsi_Host_Template *sht)
+{
+        struct Scsi_Host *shost;
+        struct qlogicfas408_priv *priv;
+        int num;
+
+        for (num = 0; num < MAX_QLOGICFAS; num++) {
+                shost = __qlogicfas_detect(sht, iobase[num], irq[num]);
+                if (shost == NULL) {
+                        /* no more devices */
+                        break;
+                }
+                priv = get_priv_by_host(shost);
+                priv->next = cards;
+                cards = priv;
+        }
+
+        return num;
+}
+
+static int qlogicfas_release(struct Scsi_Host *shost)
+{
+        struct qlogicfas408_priv *priv = get_priv_by_host(shost);
+
+        if (shost->irq) {
+                qlogicfas408_disable_ints(priv);        
+                free_irq(shost->irq, shost);
+        }
+        if (shost->dma_channel != 0xff)
+                free_dma(shost->dma_channel);
+        if (shost->io_port && shost->n_io_port)
+                release_region(shost->io_port, shost->n_io_port);
+        scsi_remove_host(shost);
+        scsi_host_put(shost);
+
+        return 0;
+}
+
+/*
+ *      The driver template is also needed for PCMCIA
+ */
+static Scsi_Host_Template qlogicfas_driver_template = {
+        .module                 = THIS_MODULE,
+        .name                   = qlogicfas_name,
+        .proc_name              = qlogicfas_name,
+        .info                   = qlogicfas408_info,
+        .queuecommand           = qlogicfas408_queuecommand,
+        .eh_abort_handler       = qlogicfas408_abort,
+        .eh_bus_reset_handler   = qlogicfas408_bus_reset,
+        .eh_device_reset_handler= qlogicfas408_device_reset,
+        .eh_host_reset_handler  = qlogicfas408_host_reset,
+        .bios_param             = qlogicfas408_biosparam,
+        .can_queue              = 1,
+        .this_id                = -1,
+        .sg_tablesize           = SG_ALL,
+        .cmd_per_lun            = 1,
+        .use_clustering         = DISABLE_CLUSTERING,
+};
+
+static __init int qlogicfas_init(void)
+{
+        if (!qlogicfas_detect(&qlogicfas_driver_template)) {
+                /* no cards found */
+                printk(KERN_INFO "%s: no cards were found, please specify "
+                                 "I/O address and IRQ using iobase= and irq= "
+                                 "options", qlogicfas_name);
+                return -ENODEV;
+        }
+
+        return 0;
+}
+
+static __exit void qlogicfas_exit(void)
+{
+        struct qlogicfas408_priv *priv;
+
+        for (priv = cards; priv != NULL; priv = priv->next)
+                qlogicfas_release(priv->shost);
+}
+
+MODULE_AUTHOR("Tom Zerucha, Michael Griffith");
+MODULE_DESCRIPTION("Driver for the Qlogic FAS408 based ISA card");
+MODULE_LICENSE("GPL");
+module_init(qlogicfas_init);
+module_exit(qlogicfas_exit);
+