[PATCH 21/21] m68k: amiga - GVP Series II SCSI zorro_driver conversion

Geert Uytterhoeven
2010-04-04T09:00:51Z

drivers/scsi/gvp11.c | 296 ++++++++++++++++++++++++++------------------------
drivers/scsi/gvp11.h | 7 -
2 files changed, 155 insertions(+), 148 deletions(-)

diff --git a/drivers/scsi/gvp11.c b/drivers/scsi/gvp11.c
index 8167b79..6a89afc 100644
--- a/drivers/scsi/gvp11.c
+++ b/drivers/scsi/gvp11.c
@@ -1,25 +1,19 @@
#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/blkdev.h>
#include <linux/init.h>
#include <linux/interrupt.h>
+#include <linux/mm.h>
+#include <linux/spinlock.h>
+#include <linux/zorro.h>

-#include <asm/setup.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/amigaints.h>
#include <asm/amigahw.h>
-#include <linux/zorro.h>
-#include <asm/irq.h>
-#include <linux/spinlock.h>

#include "scsi.h"
-#include <scsi/scsi_host.h>
#include "wd33c93.h"
#include "gvp11.h"

-#include <linux/stat.h>
-

#define CHECK_WD33C93

@@ -168,7 +162,40 @@ static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
}
}

-static int __init check_wd33c93(struct gvp11_scsiregs *regs)
+static int gvp11_bus_reset(struct scsi_cmnd *cmd)
+{
+ struct Scsi_Host *instance = cmd->device->host;
+
+ /* FIXME perform bus-specific reset */
+
+ /* FIXME 2: shouldn't we no-op this function (return
+ FAILED), and fall back to host reset function,
+ wd33c93_host_reset ? */
+
+ spin_lock_irq(instance->host_lock);
+ wd33c93_host_reset(cmd);
+ spin_unlock_irq(instance->host_lock);
+
+ return SUCCESS;
+}
+
+static struct scsi_host_template gvp11_scsi_template = {
+ .module = THIS_MODULE,
+ .name = "GVP Series II SCSI",
+ .proc_info = wd33c93_proc_info,
+ .proc_name = "GVP11",
+ .queuecommand = wd33c93_queuecommand,
+ .eh_abort_handler = wd33c93_abort,
+ .eh_bus_reset_handler = gvp11_bus_reset,
+ .eh_host_reset_handler = wd33c93_host_reset,
+ .can_queue = CAN_QUEUE,
+ .this_id = 7,
+ .sg_tablesize = SG_ALL,
+ .cmd_per_lun = CMD_PER_LUN,
+ .use_clustering = DISABLE_CLUSTERING
+};
+
+static int __devinit check_wd33c93(struct gvp11_scsiregs *regs)
{
#ifdef CHECK_WD33C93
volatile unsigned char *sasr_3393, *scmd_3393;
@@ -248,163 +275,150 @@ static int __init check_wd33c93(struct gvp11_scsiregs *regs)
return 0;
}

-int __init gvp11_detect(struct scsi_host_template *tpnt)
+static int __devinit gvp11_probe(struct zorro_dev *z,
+ const struct zorro_device_id *ent)
{
- static unsigned char called = 0;
struct Scsi_Host *instance;
unsigned long address;
+ int error;
unsigned int epc;
- struct zorro_dev *z = NULL;
unsigned int default_dma_xfer_mask;
struct WD33C93_hostdata *hdata;
struct gvp11_scsiregs *regs;
wd33c93_regs wdregs;
- int num_gvp11 = 0;
-
- if (!MACH_IS_AMIGA || called)
- return 0;
- called = 1;
-
- tpnt->proc_name = "GVP11";
- tpnt->proc_info = &wd33c93_proc_info;
-
- while ((z = zorro_find_device(ZORRO_WILDCARD, z))) {
- /*
- * This should (hopefully) be the correct way to identify
- * all the different GVP SCSI controllers (except for the
- * SERIES I though).
- */
-
- if (z->id == ZORRO_PROD_GVP_COMBO_030_R3_SCSI ||
- z->id == ZORRO_PROD_GVP_SERIES_II)
- default_dma_xfer_mask = ~0x00ffffff;
- else if (z->id == ZORRO_PROD_GVP_GFORCE_030_SCSI ||
- z->id == ZORRO_PROD_GVP_A530_SCSI ||
- z->id == ZORRO_PROD_GVP_COMBO_030_R4_SCSI)
- default_dma_xfer_mask = ~0x01ffffff;
- else if (z->id == ZORRO_PROD_GVP_A1291 ||
- z->id == ZORRO_PROD_GVP_GFORCE_040_SCSI_1)
- default_dma_xfer_mask = ~0x07ffffff;
- else
- continue;
-
- /*
- * Rumors state that some GVP ram boards use the same product
- * code as the SCSI controllers. Therefore if the board-size
- * is not 64KB we asume it is a ram board and bail out.
- */
- if (z->resource.end - z->resource.start != 0xffff)
- continue;
-
- address = z->resource.start;
- if (!request_mem_region(address, 256, "wd33c93"))
- continue;
-
- regs = (struct gvp11_scsiregs *)(ZTWO_VADDR(address));
- if (check_wd33c93(regs))
- goto release;
-
- instance = scsi_register(tpnt, sizeof(struct WD33C93_hostdata));
- if (instance == NULL)
- goto release;
- instance->base = ZTWO_VADDR(address);
- instance->irq = IRQ_AMIGA_PORTS;
- instance->unique_id = z->slotaddr;
-
- hdata = shost_priv(instance);
- if (gvp11_xfer_mask)
- hdata->dma_xfer_mask = gvp11_xfer_mask;
- else
- hdata->dma_xfer_mask = default_dma_xfer_mask;
-
- regs->secret2 = 1;
- regs->secret1 = 0;
- regs->secret3 = 15;
- while (regs->CNTR & GVP11_DMAC_BUSY)
- ;
- regs->CNTR = 0;
-
- regs->BANK = 0;
-
- epc = *(unsigned short *)(ZTWO_VADDR(address) + 0x8000);
-
- /*
- * Check for 14MHz SCSI clock
- */
- wdregs.SASR = &regs->SASR;
- wdregs.SCMD = &regs->SCMD;
- hdata->no_sync = 0xff;
- hdata->fast = 0;
- hdata->dma_mode = CTRL_DMA;
- wd33c93_init(instance, wdregs, dma_setup, dma_stop,
- (epc & GVP_SCSICLKMASK) ? WD33C93_FS_8_10
- : WD33C93_FS_12_15);
-
- if (request_irq(IRQ_AMIGA_PORTS, gvp11_intr, IRQF_SHARED,
- "GVP11 SCSI", instance))
- goto unregister;
- regs->CNTR = GVP11_DMAC_INT_ENABLE;
- num_gvp11++;
- continue;
-
-unregister:
- scsi_unregister(instance);
-release:
- release_mem_region(address, 256);
+
+ default_dma_xfer_mask = ent->driver_data;
+
+ /*
+ * Rumors state that some GVP ram boards use the same product
+ * code as the SCSI controllers. Therefore if the board-size
+ * is not 64KB we asume it is a ram board and bail out.
+ */
+ if (zorro_resource_len(z) != 0x10000)
+ return -ENODEV;
+
+ address = z->resource.start;
+ if (!request_mem_region(address, 256, "wd33c93"))
+ return -EBUSY;
+
+ regs = (struct gvp11_scsiregs *)(ZTWO_VADDR(address));
+
+ error = check_wd33c93(regs);
+ if (error)
+ goto fail_check_or_alloc;
+
+ instance = scsi_host_alloc(&gvp11_scsi_template,
+ sizeof(struct WD33C93_hostdata));
+ if (!instance) {
+ error = -ENOMEM;
+ goto fail_check_or_alloc;
}

- return num_gvp11;
-}
+ instance->base = (unsigned long)regs;
+ instance->irq = IRQ_AMIGA_PORTS;
+ instance->unique_id = z->slotaddr;

-static int gvp11_bus_reset(struct scsi_cmnd *cmd)
-{
- /* FIXME perform bus-specific reset */
+ regs->secret2 = 1;
+ regs->secret1 = 0;
+ regs->secret3 = 15;
+ while (regs->CNTR & GVP11_DMAC_BUSY)
+ ;
+ regs->CNTR = 0;
+ regs->BANK = 0;

- /* FIXME 2: shouldn't we no-op this function (return
- FAILED), and fall back to host reset function,
- wd33c93_host_reset ? */
+ wdregs.SASR = &regs->SASR;
+ wdregs.SCMD = &regs->SCMD;

- spin_lock_irq(cmd->device->host->host_lock);
- wd33c93_host_reset(cmd);
- spin_unlock_irq(cmd->device->host->host_lock);
+ hdata = shost_priv(instance);
+ if (gvp11_xfer_mask)
+ hdata->dma_xfer_mask = gvp11_xfer_mask;
+ else
+ hdata->dma_xfer_mask = default_dma_xfer_mask;

- return SUCCESS;
-}
+ hdata->no_sync = 0xff;
+ hdata->fast = 0;
+ hdata->dma_mode = CTRL_DMA;

+ /*
+ * Check for 14MHz SCSI clock
+ */
+ epc = *(unsigned short *)(ZTWO_VADDR(address) + 0x8000);
+ wd33c93_init(instance, wdregs, dma_setup, dma_stop,
+ (epc & GVP_SCSICLKMASK) ? WD33C93_FS_8_10
+ : WD33C93_FS_12_15);

-#define HOSTS_C
+ error = request_irq(IRQ_AMIGA_PORTS, gvp11_intr, IRQF_SHARED,
+ "GVP11 SCSI", instance);
+ if (error)
+ goto fail_irq;

-#include "gvp11.h"
+ regs->CNTR = GVP11_DMAC_INT_ENABLE;

-static struct scsi_host_template driver_template = {
- .proc_name = "GVP11",
- .name = "GVP Series II SCSI",
- .detect = gvp11_detect,
- .release = gvp11_release,
- .queuecommand = wd33c93_queuecommand,
- .eh_abort_handler = wd33c93_abort,
- .eh_bus_reset_handler = gvp11_bus_reset,
- .eh_host_reset_handler = wd33c93_host_reset,
- .can_queue = CAN_QUEUE,
- .this_id = 7,
- .sg_tablesize = SG_ALL,
- .cmd_per_lun = CMD_PER_LUN,
- .use_clustering = DISABLE_CLUSTERING
-};
+ error = scsi_add_host(instance, NULL);
+ if (error)
+ goto fail_host;

+ zorro_set_drvdata(z, instance);
+ scsi_scan_host(instance);
+ return 0;

-#include "scsi_module.c"
+fail_host:
+ free_irq(IRQ_AMIGA_PORTS, instance);
+fail_irq:
+ scsi_host_put(instance);
+fail_check_or_alloc:
+ release_mem_region(address, 256);
+ return error;
+}

-int gvp11_release(struct Scsi_Host *instance)
+static void __devexit gvp11_remove(struct zorro_dev *z)
{
-#ifdef MODULE
+ struct Scsi_Host *instance = zorro_get_drvdata(z);
struct gvp11_scsiregs *regs = (struct gvp11_scsiregs *)(instance->base);

regs->CNTR = 0;
- release_mem_region(ZTWO_PADDR(instance->base), 256);
+ scsi_remove_host(instance);
free_irq(IRQ_AMIGA_PORTS, instance);
-#endif
- return 1;
+ scsi_host_put(instance);
+ release_mem_region(z->resource.start, 256);
+}
+
+ /*
+ * This should (hopefully) be the correct way to identify
+ * all the different GVP SCSI controllers (except for the
+ * SERIES I though).
+ */
+
+static struct zorro_device_id gvp11_zorro_tbl[] __devinitdata = {
+ { ZORRO_PROD_GVP_COMBO_030_R3_SCSI, ~0x00ffffff },
+ { ZORRO_PROD_GVP_SERIES_II, ~0x00ffffff },
+ { ZORRO_PROD_GVP_GFORCE_030_SCSI, ~0x01ffffff },
+ { ZORRO_PROD_GVP_A530_SCSI, ~0x01ffffff },
+ { ZORRO_PROD_GVP_COMBO_030_R4_SCSI, ~0x01ffffff },
+ { ZORRO_PROD_GVP_A1291, ~0x07ffffff },
+ { ZORRO_PROD_GVP_GFORCE_040_SCSI_1, ~0x07ffffff },
+ { 0 }
+};
+MODULE_DEVICE_TABLE(zorro, gvp11_zorro_tbl);
+
+static struct zorro_driver gvp11_driver = {
+ .name = "gvp11",
+ .id_table = gvp11_zorro_tbl,
+ .probe = gvp11_probe,
+ .remove = __devexit_p(gvp11_remove),
+};
+
+static int __init gvp11_init(void)
+{
+ return zorro_register_driver(&gvp11_driver);
+}
+module_init(gvp11_init);
+
+static void __exit gvp11_exit(void)
+{
+ zorro_unregister_driver(&gvp11_driver);
}
+module_exit(gvp11_exit);

+MODULE_DESCRIPTION("GVP Series II SCSI");
MODULE_LICENSE("GPL");
diff --git a/drivers/scsi/gvp11.h b/drivers/scsi/gvp11.h
index b27a3ee..852913c 100644
--- a/drivers/scsi/gvp11.h
+++ b/drivers/scsi/gvp11.h
@@ -11,9 +11,6 @@

#include <linux/types.h>

-int gvp11_detect(struct scsi_host_template *);
-int gvp11_release(struct Scsi_Host *);
-
#ifndef CMD_PER_LUN
#define CMD_PER_LUN 2
#endif
@@ -22,8 +19,6 @@ int gvp11_release(struct Scsi_Host *);
#define CAN_QUEUE 16
#endif

-#ifndef HOSTS_C
-
/*
* if the transfer address ANDed with this results in a non-zero
* result, then we can't use DMA.
@@ -54,6 +49,4 @@ struct gvp11_scsiregs {
#define GVP11_DMAC_INT_ENABLE (1<<3)
#define GVP11_DMAC_DIR_WRITE (1<<4)

-#endif /* else def HOSTS_C */
-
#endif /* GVP11_H */
--
1.6.0.4