[SCSI] qlogicpti: Convert to new SBUS device framework.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 186 insertions, 175 deletions

diff --git a/drivers/scsi/qlogicpti.c b/drivers/scsi/qlogicpti.c
index 2203103adced..329ead263714 100644
--- a/drivers/scsi/qlogicpti.c
+++ b/drivers/scsi/qlogicpti.c
@@ -1,6 +1,6 @@
 /* qlogicpti.c: Performance Technologies QlogicISP sbus card driver.
  *
- * Copyright (C) 1996 David S. Miller (davem@caipfs.rutgers.edu)
+ * Copyright (C) 1996, 2006 David S. Miller (davem@davemloft.net)
  *
  * A lot of this driver was directly stolen from Erik H. Moe's PCI
  * Qlogic ISP driver.  Mucho kudos to him for this code.
@@ -46,8 +46,6 @@
 #include <scsi/scsi_tcq.h>
 #include <scsi/scsi_host.h>
 
-
-
 #define MAX_TARGETS     16
 #define MAX_LUNS        8       /* 32 for 1.31 F/W */
 
@@ -57,7 +55,6 @@
 
 static struct qlogicpti *qptichain = NULL;
 static DEFINE_SPINLOCK(qptichain_lock);
-static int qptis_running = 0;
 
 #define PACKB(a, b)                     (((a)<<4)|(b))
 
@@ -815,173 +812,6 @@ static int __init qpti_map_queues(struct qlogicpti *qpti)
         return 0;
 }
 
-/* Detect all PTI Qlogic ISP's in the machine. */
-static int __init qlogicpti_detect(struct scsi_host_template *tpnt)
-{
-        struct qlogicpti *qpti;
-        struct Scsi_Host *qpti_host;
-        struct sbus_bus *sbus;
-        struct sbus_dev *sdev;
-        int nqptis = 0, nqptis_in_use = 0;
-
-        tpnt->proc_name = "qlogicpti";
-        for_each_sbus(sbus) {
-                for_each_sbusdev(sdev, sbus) {
-                        /* Is this a red snapper? */
-                        if (strcmp(sdev->prom_name, "ptisp") &&
-                            strcmp(sdev->prom_name, "PTI,ptisp") &&
-                            strcmp(sdev->prom_name, "QLGC,isp") &&
-                            strcmp(sdev->prom_name, "SUNW,isp"))
-                                continue;
-
-                        /* Sometimes Antares cards come up not completely
-                         * setup, and we get a report of a zero IRQ.
-                         * Skip over them in such cases so we survive.
-                         */
-                        if (sdev->irqs[0] == 0) {
-                                printk("qpti%d: Adapter reports no interrupt, "
-                                       "skipping over this card.", nqptis);
-                                continue;
-                        }
-
-                        /* Yep, register and allocate software state. */
-                        qpti_host = scsi_register(tpnt, sizeof(struct qlogicpti));
-                        if (!qpti_host) {
-                                printk("QPTI: Cannot register PTI Qlogic ISP SCSI host");
-                                continue;
-                        }
-                        qpti = (struct qlogicpti *) qpti_host->hostdata;
-
-                        /* We are wide capable, 16 targets. */
-                        qpti_host->max_id = MAX_TARGETS;
-
-                        /* Setup back pointers and misc. state. */
-                        qpti->qhost = qpti_host;
-                        qpti->sdev = sdev;
-                        qpti->qpti_id = nqptis++;
-                        qpti->prom_node = sdev->prom_node;
-                        prom_getstring(qpti->prom_node, "name",
-                                       qpti->prom_name,
-                                       sizeof(qpti->prom_name));
-
-                        /* This is not correct, actually. There's a switch
-                         * on the PTI cards that put them into "emulation"
-                         * mode- i.e., report themselves as QLGC,isp
-                         * instead of PTI,ptisp. The only real substantive
-                         * difference between non-pti and pti cards is
-                         * the tmon register. Which is possibly even
-                         * there for Qlogic cards, but non-functional.
-                         */
-                        qpti->is_pti = (strcmp (qpti->prom_name, "QLGC,isp") != 0);
-
-                        qpti_chain_add(qpti);
-                        if (qpti_map_regs(qpti) < 0)
-                                goto fail_unlink;
-
-                        if (qpti_register_irq(qpti) < 0)
-                                goto fail_unmap_regs;
-
-                        qpti_get_scsi_id(qpti);
-                        qpti_get_bursts(qpti);
-                        qpti_get_clock(qpti);
-
-                        /* Clear out scsi_cmnd array. */
-                        memset(qpti->cmd_slots, 0, sizeof(qpti->cmd_slots));
-
-                        if (qpti_map_queues(qpti) < 0)
-                                goto fail_free_irq;
-
-                        /* Load the firmware. */
-                        if (qlogicpti_load_firmware(qpti))
-                                goto fail_unmap_queues;
-                        if (qpti->is_pti) {
-                                /* Check the PTI status reg. */
-                                if (qlogicpti_verify_tmon(qpti))
-                                        goto fail_unmap_queues;
-                        }
-
-                        /* Reset the ISP and init res/req queues. */
-                        if (qlogicpti_reset_hardware(qpti_host))
-                                goto fail_unmap_queues;
-
-                        printk("(Firmware v%d.%d.%d)", qpti->fware_majrev,
-                            qpti->fware_minrev, qpti->fware_micrev);
-                        {
-                                char buffer[60];
-                                
-                                prom_getstring (qpti->prom_node,
-                                                "isp-fcode", buffer, 60);
-                                if (buffer[0])
-                                        printk("(Firmware %s)", buffer);
-                                if (prom_getbool(qpti->prom_node, "differential"))
-                                        qpti->differential = 1;
-                        }
-                        
-                        printk (" [%s Wide, using %s interface]\n",
-                               (qpti->ultra ? "Ultra" : "Fast"),
-                               (qpti->differential ? "differential" : "single ended"));
-
-                        nqptis_in_use++;
-                        continue;
-
-                fail_unmap_queues:
-#define QSIZE(entries)  (((entries) + 1) * QUEUE_ENTRY_LEN)
-                        sbus_free_consistent(qpti->sdev,
-                                             QSIZE(RES_QUEUE_LEN),
-                                             qpti->res_cpu, qpti->res_dvma);
-                        sbus_free_consistent(qpti->sdev,
-                                             QSIZE(QLOGICPTI_REQ_QUEUE_LEN),
-                                             qpti->req_cpu, qpti->req_dvma);
-#undef QSIZE
-                fail_free_irq:
-                        free_irq(qpti->irq, qpti);
-
-                fail_unmap_regs:
-                        sbus_iounmap(qpti->qregs,
-                                     qpti->sdev->reg_addrs[0].reg_size);
-                        if (qpti->is_pti)
-                                sbus_iounmap(qpti->sreg, sizeof(unsigned char));
-                fail_unlink:
-                        qpti_chain_del(qpti);
-                        scsi_unregister(qpti->qhost);
-                }
-        }
-        if (nqptis)
-                printk("QPTI: Total of %d PTI Qlogic/ISP hosts found, %d actually in use.\n",
-                       nqptis, nqptis_in_use);
-        qptis_running = nqptis_in_use;
-        return nqptis;
-}
-
-static int qlogicpti_release(struct Scsi_Host *host)
-{
-        struct qlogicpti *qpti = (struct qlogicpti *) host->hostdata;
-
-        /* Remove visibility from IRQ handlers. */
-        qpti_chain_del(qpti);
-
-        /* Shut up the card. */
-        sbus_writew(0, qpti->qregs + SBUS_CTRL);
-
-        /* Free IRQ handler and unmap Qlogic,ISP and PTI status regs. */
-        free_irq(qpti->irq, qpti);
-
-#define QSIZE(entries)  (((entries) + 1) * QUEUE_ENTRY_LEN)
-        sbus_free_consistent(qpti->sdev,
-                             QSIZE(RES_QUEUE_LEN),
-                             qpti->res_cpu, qpti->res_dvma);
-        sbus_free_consistent(qpti->sdev,
-                             QSIZE(QLOGICPTI_REQ_QUEUE_LEN),
-                             qpti->req_cpu, qpti->req_dvma);
-#undef QSIZE
-
-        sbus_iounmap(qpti->qregs, qpti->sdev->reg_addrs[0].reg_size);
-        if (qpti->is_pti)
-                sbus_iounmap(qpti->sreg, sizeof(unsigned char));
-
-        return 0;
-}
-
 const char *qlogicpti_info(struct Scsi_Host *host)
 {
         static char buf[80];
@@ -1551,9 +1381,9 @@ static int qlogicpti_reset(struct scsi_cmnd *Cmnd)
         return return_status;
 }
 
-static struct scsi_host_template driver_template = {
-        .detect                 = qlogicpti_detect,
-        .release                = qlogicpti_release,
+static struct scsi_host_template qpti_template = {
+        .module                 = THIS_MODULE,
+        .name                   = "qlogicpti",
         .info                   = qlogicpti_info,
         .queuecommand           = qlogicpti_queuecommand_slow,
         .eh_abort_handler       = qlogicpti_abort,
@@ -1565,8 +1395,189 @@ static struct scsi_host_template driver_template = {
         .use_clustering         = ENABLE_CLUSTERING,
 };
 
+static int __devinit qpti_sbus_probe(struct of_device *dev, const struct of_device_id *match)
+{
+        static int nqptis;
+        struct sbus_dev *sdev = to_sbus_device(&dev->dev);
+        struct device_node *dp = dev->node;
+        struct scsi_host_template *tpnt = match->data;
+        struct Scsi_Host *host;
+        struct qlogicpti *qpti;
+        char *fcode;
+
+        /* Sometimes Antares cards come up not completely
+         * setup, and we get a report of a zero IRQ.
+         */
+        if (sdev->irqs[0] == 0)
+                return -ENODEV;
+
+        host = scsi_host_alloc(tpnt, sizeof(struct qlogicpti));
+        if (!host)
+                return -ENOMEM;
+
+        qpti = (struct qlogicpti *) host->hostdata;
+
+        host->max_id = MAX_TARGETS;
+        qpti->qhost = host;
+        qpti->sdev = sdev;
+        qpti->qpti_id = nqptis;
+        qpti->prom_node = sdev->prom_node;
+        strcpy(qpti->prom_name, sdev->ofdev.node->name);
+        qpti->is_pti = strcmp(qpti->prom_name, "QLGC,isp");
+
+        if (qpti_map_regs(qpti) < 0)
+                goto fail_unlink;
+
+        if (qpti_register_irq(qpti) < 0)
+                goto fail_unmap_regs;
+
+        qpti_get_scsi_id(qpti);
+        qpti_get_bursts(qpti);
+        qpti_get_clock(qpti);
+
+        /* Clear out scsi_cmnd array. */
+        memset(qpti->cmd_slots, 0, sizeof(qpti->cmd_slots));
+
+        if (qpti_map_queues(qpti) < 0)
+                goto fail_free_irq;
+
+        /* Load the firmware. */
+        if (qlogicpti_load_firmware(qpti))
+                goto fail_unmap_queues;
+        if (qpti->is_pti) {
+                /* Check the PTI status reg. */
+                if (qlogicpti_verify_tmon(qpti))
+                        goto fail_unmap_queues;
+        }
+
+        /* Reset the ISP and init res/req queues. */
+        if (qlogicpti_reset_hardware(host))
+                goto fail_unmap_queues;
+
+        if (scsi_add_host(host, &dev->dev))
+                goto fail_unmap_queues;
+
+        printk("(Firmware v%d.%d.%d)", qpti->fware_majrev,
+               qpti->fware_minrev, qpti->fware_micrev);
+
+        fcode = of_get_property(dp, "isp-fcode", NULL);
+        if (fcode && fcode[0])
+                printk("(Firmware %s)", fcode);
+        if (of_find_property(dp, "differential", NULL) != NULL)
+                qpti->differential = 1;
+                        
+        printk (" [%s Wide, using %s interface]\n",
+                (qpti->ultra ? "Ultra" : "Fast"),
+                (qpti->differential ? "differential" : "single ended"));
+
+        dev_set_drvdata(&sdev->ofdev.dev, qpti);
+
+        qpti_chain_add(qpti);
+
+        scsi_scan_host(host);
+        nqptis++;
+
+        return 0;
+
+fail_unmap_queues:
+#define QSIZE(entries)  (((entries) + 1) * QUEUE_ENTRY_LEN)
+        sbus_free_consistent(qpti->sdev,
+                             QSIZE(RES_QUEUE_LEN),
+                             qpti->res_cpu, qpti->res_dvma);
+        sbus_free_consistent(qpti->sdev,
+                             QSIZE(QLOGICPTI_REQ_QUEUE_LEN),
+                             qpti->req_cpu, qpti->req_dvma);
+#undef QSIZE
+
+fail_unmap_regs:
+        sbus_iounmap(qpti->qregs,
+                     qpti->sdev->reg_addrs[0].reg_size);
+        if (qpti->is_pti)
+                sbus_iounmap(qpti->sreg, sizeof(unsigned char));
+
+fail_free_irq:
+        free_irq(qpti->irq, qpti);
+
+fail_unlink:
+        scsi_host_put(host);
+
+        return -ENODEV;
+}
+
+static int __devexit qpti_sbus_remove(struct of_device *dev)
+{
+        struct qlogicpti *qpti = dev_get_drvdata(&dev->dev);
+
+        qpti_chain_del(qpti);
+
+        scsi_remove_host(qpti->qhost);
+
+        /* Shut up the card. */
+        sbus_writew(0, qpti->qregs + SBUS_CTRL);
+
+        /* Free IRQ handler and unmap Qlogic,ISP and PTI status regs. */
+        free_irq(qpti->irq, qpti);
+
+#define QSIZE(entries)  (((entries) + 1) * QUEUE_ENTRY_LEN)
+        sbus_free_consistent(qpti->sdev,
+                             QSIZE(RES_QUEUE_LEN),
+                             qpti->res_cpu, qpti->res_dvma);
+        sbus_free_consistent(qpti->sdev,
+                             QSIZE(QLOGICPTI_REQ_QUEUE_LEN),
+                             qpti->req_cpu, qpti->req_dvma);
+#undef QSIZE
+
+        sbus_iounmap(qpti->qregs, qpti->sdev->reg_addrs[0].reg_size);
+        if (qpti->is_pti)
+                sbus_iounmap(qpti->sreg, sizeof(unsigned char));
+
+        scsi_host_put(qpti->qhost);
+
+        return 0;
+}
+
+static struct of_device_id qpti_match[] = {
+        {
+                .name = "ptisp",
+                .data = &qpti_template,
+        },
+        {
+                .name = "PTI,ptisp",
+                .data = &qpti_template,
+        },
+        {
+                .name = "QLGC,isp",
+                .data = &qpti_template,
+        },
+        {
+                .name = "SUNW,isp",
+                .data = &qpti_template,
+        },
+        {},
+};
+MODULE_DEVICE_TABLE(of, qpti_match);
+
+static struct of_platform_driver qpti_sbus_driver = {
+        .name           = "qpti",
+        .match_table    = qpti_match,
+        .probe          = qpti_sbus_probe,
+        .remove         = __devexit_p(qpti_sbus_remove),
+};
 
-#include "scsi_module.c"
+static int __init qpti_init(void)
+{
+        return of_register_driver(&qpti_sbus_driver, &sbus_bus_type);
+}
+
+static void __exit qpti_exit(void)
+{
+        of_unregister_driver(&qpti_sbus_driver);
+}
 
+MODULE_DESCRIPTION("QlogicISP SBUS driver");
+MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
 MODULE_LICENSE("GPL");
+MODULE_VERSION("2.0");
 
+module_init(qpti_init);
+module_exit(qpti_exit);