m68k/scsi: a2091 - Do not use legacy Scsi_Host.base

Acked-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

diff --git a/drivers/scsi/a2091.c b/drivers/scsi/a2091.c
index fc4fce99528e7b773eeac1fc6c465e3b16bdd7c3..1bb5d3f0e260f1a94a74b15deb47301212784d19 100644 (file)
--- a/drivers/scsi/a2091.c
+++ b/drivers/scsi/a2091.c
@@ -16,11 +16,16 @@
 #include "a2091.h"
 
 
+struct a2091_hostdata {
+       struct WD33C93_hostdata wh;
+       struct a2091_scsiregs *regs;
+};
+
 static irqreturn_t a2091_intr(int irq, void *data)
 {
        struct Scsi_Host *instance = data;
-       struct a2091_scsiregs *regs = (struct a2091_scsiregs *)(instance->base);
-       unsigned int status = regs->ISTR;
+       struct a2091_hostdata *hdata = shost_priv(instance);
+       unsigned int status = hdata->regs->ISTR;
        unsigned long flags;
 
        if (!(status & (ISTR_INT_F | ISTR_INT_P)) || !(status & ISTR_INTS))
@@ -35,38 +40,39 @@ static irqreturn_t a2091_intr(int irq, void *data)
 static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
 {
        struct Scsi_Host *instance = cmd->device->host;
-       struct WD33C93_hostdata *hdata = shost_priv(instance);
-       struct a2091_scsiregs *regs = (struct a2091_scsiregs *)(instance->base);
+       struct a2091_hostdata *hdata = shost_priv(instance);
+       struct WD33C93_hostdata *wh = &hdata->wh;
+       struct a2091_scsiregs *regs = hdata->regs;
        unsigned short cntr = CNTR_PDMD | CNTR_INTEN;
        unsigned long addr = virt_to_bus(cmd->SCp.ptr);
 
        /* don't allow DMA if the physical address is bad */
        if (addr & A2091_XFER_MASK) {
-               hdata->dma_bounce_len = (cmd->SCp.this_residual + 511) & ~0x1ff;
-               hdata->dma_bounce_buffer = kmalloc(hdata->dma_bounce_len,
-                                                  GFP_KERNEL);
+               wh->dma_bounce_len = (cmd->SCp.this_residual + 511) & ~0x1ff;
+               wh->dma_bounce_buffer = kmalloc(wh->dma_bounce_len,
+                                               GFP_KERNEL);
 
                /* can't allocate memory; use PIO */
-               if (!hdata->dma_bounce_buffer) {
-                       hdata->dma_bounce_len = 0;
+               if (!wh->dma_bounce_buffer) {
+                       wh->dma_bounce_len = 0;
                        return 1;
                }
 
                /* get the physical address of the bounce buffer */
-               addr = virt_to_bus(hdata->dma_bounce_buffer);
+               addr = virt_to_bus(wh->dma_bounce_buffer);
 
                /* the bounce buffer may not be in the first 16M of physmem */
                if (addr & A2091_XFER_MASK) {
                        /* we could use chipmem... maybe later */
-                       kfree(hdata->dma_bounce_buffer);
-                       hdata->dma_bounce_buffer = NULL;
-                       hdata->dma_bounce_len = 0;
+                       kfree(wh->dma_bounce_buffer);
+                       wh->dma_bounce_buffer = NULL;
+                       wh->dma_bounce_len = 0;
                        return 1;
                }
 
                if (!dir_in) {
                        /* copy to bounce buffer for a write */
-                       memcpy(hdata->dma_bounce_buffer, cmd->SCp.ptr,
+                       memcpy(wh->dma_bounce_buffer, cmd->SCp.ptr,
                               cmd->SCp.this_residual);
                }
        }
@@ -76,7 +82,7 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
                cntr |= CNTR_DDIR;
 
        /* remember direction */
-       hdata->dma_dir = dir_in;
+       wh->dma_dir = dir_in;
 
        regs->CNTR = cntr;
 
@@ -100,20 +106,21 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
 static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
                     int status)
 {
-       struct WD33C93_hostdata *hdata = shost_priv(instance);
-       struct a2091_scsiregs *regs = (struct a2091_scsiregs *)(instance->base);
+       struct a2091_hostdata *hdata = shost_priv(instance);
+       struct WD33C93_hostdata *wh = &hdata->wh;
+       struct a2091_scsiregs *regs = hdata->regs;
 
        /* disable SCSI interrupts */
        unsigned short cntr = CNTR_PDMD;
 
-       if (!hdata->dma_dir)
+       if (!wh->dma_dir)
                cntr |= CNTR_DDIR;
 
        /* disable SCSI interrupts */
        regs->CNTR = cntr;
 
        /* flush if we were reading */
-       if (hdata->dma_dir) {
+       if (wh->dma_dir) {
                regs->FLUSH = 1;
                while (!(regs->ISTR & ISTR_FE_FLG))
                        ;
@@ -129,13 +136,13 @@ static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
        regs->CNTR = CNTR_PDMD | CNTR_INTEN;
 
        /* copy from a bounce buffer, if necessary */
-       if (status && hdata->dma_bounce_buffer) {
-               if (hdata->dma_dir)
-                       memcpy(SCpnt->SCp.ptr, hdata->dma_bounce_buffer,
+       if (status && wh->dma_bounce_buffer) {
+               if (wh->dma_dir)
+                       memcpy(SCpnt->SCp.ptr, wh->dma_bounce_buffer,
                               SCpnt->SCp.this_residual);
-               kfree(hdata->dma_bounce_buffer);
-               hdata->dma_bounce_buffer = NULL;
-               hdata->dma_bounce_len = 0;
+               kfree(wh->dma_bounce_buffer);
+               wh->dma_bounce_buffer = NULL;
+               wh->dma_bounce_len = 0;
        }
 }
 
@@ -178,32 +185,32 @@ static int __devinit a2091_probe(struct zorro_dev *z,
        int error;
        struct a2091_scsiregs *regs;
        wd33c93_regs wdregs;
-       struct WD33C93_hostdata *hdata;
+       struct a2091_hostdata *hdata;
 
        if (!request_mem_region(z->resource.start, 256, "wd33c93"))
                return -EBUSY;
 
        instance = scsi_host_alloc(&a2091_scsi_template,
-                                  sizeof(struct WD33C93_hostdata));
+                                  sizeof(struct a2091_hostdata));
        if (!instance) {
                error = -ENOMEM;
                goto fail_alloc;
        }
 
-       instance->base = ZTWO_VADDR(z->resource.start);
        instance->irq = IRQ_AMIGA_PORTS;
        instance->unique_id = z->slotaddr;
 
-       regs = (struct a2091_scsiregs *)(instance->base);
+       regs = (struct a2091_scsiregs *)ZTWO_VADDR(z->resource.start);
        regs->DAWR = DAWR_A2091;
 
        wdregs.SASR = &regs->SASR;
        wdregs.SCMD = &regs->SCMD;
 
        hdata = shost_priv(instance);
-       hdata->no_sync = 0xff;
-       hdata->fast = 0;
-       hdata->dma_mode = CTRL_DMA;
+       hdata->wh.no_sync = 0xff;
+       hdata->wh.fast = 0;
+       hdata->wh.dma_mode = CTRL_DMA;
+       hdata->regs = regs;
 
        wd33c93_init(instance, wdregs, dma_setup, dma_stop, WD33C93_FS_8_10);
        error = request_irq(IRQ_AMIGA_PORTS, a2091_intr, IRQF_SHARED,
@@ -234,9 +241,9 @@ fail_alloc:
 static void __devexit a2091_remove(struct zorro_dev *z)
 {
        struct Scsi_Host *instance = zorro_get_drvdata(z);
-       struct a2091_scsiregs *regs = (struct a2091_scsiregs *)(instance->base);
+       struct a2091_hostdata *hdata = shost_priv(instance);
 
-       regs->CNTR = 0;
+       hdata->regs->CNTR = 0;
        scsi_remove_host(instance);
        free_irq(IRQ_AMIGA_PORTS, instance);
        scsi_host_put(instance);