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-rw-r--r--drivers/scsi/gvp11.c105
1 files changed, 56 insertions, 49 deletions
diff --git a/drivers/scsi/gvp11.c b/drivers/scsi/gvp11.c
index 4507a16ee1c6..2ce26eb7a1ec 100644
--- a/drivers/scsi/gvp11.c
+++ b/drivers/scsi/gvp11.c
@@ -18,11 +18,16 @@
#define CHECK_WD33C93
+struct gvp11_hostdata {
+ struct WD33C93_hostdata wh;
+ struct gvp11_scsiregs *regs;
+};
+
static irqreturn_t gvp11_intr(int irq, void *data)
{
struct Scsi_Host *instance = data;
- struct gvp11_scsiregs *regs = (struct gvp11_scsiregs *)(instance->base);
- unsigned int status = regs->CNTR;
+ struct gvp11_hostdata *hdata = shost_priv(instance);
+ unsigned int status = hdata->regs->CNTR;
unsigned long flags;
if (!(status & GVP11_DMAC_INT_PENDING))
@@ -44,65 +49,66 @@ void gvp11_setup(char *str, int *ints)
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 gvp11_scsiregs *regs = (struct gvp11_scsiregs *)(instance->base);
+ struct gvp11_hostdata *hdata = shost_priv(instance);
+ struct WD33C93_hostdata *wh = &hdata->wh;
+ struct gvp11_scsiregs *regs = hdata->regs;
unsigned short cntr = GVP11_DMAC_INT_ENABLE;
unsigned long addr = virt_to_bus(cmd->SCp.ptr);
int bank_mask;
static int scsi_alloc_out_of_range = 0;
/* use bounce buffer if the physical address is bad */
- if (addr & hdata->dma_xfer_mask) {
- hdata->dma_bounce_len = (cmd->SCp.this_residual + 511) & ~0x1ff;
+ if (addr & wh->dma_xfer_mask) {
+ wh->dma_bounce_len = (cmd->SCp.this_residual + 511) & ~0x1ff;
if (!scsi_alloc_out_of_range) {
- hdata->dma_bounce_buffer =
- kmalloc(hdata->dma_bounce_len, GFP_KERNEL);
- hdata->dma_buffer_pool = BUF_SCSI_ALLOCED;
+ wh->dma_bounce_buffer =
+ kmalloc(wh->dma_bounce_len, GFP_KERNEL);
+ wh->dma_buffer_pool = BUF_SCSI_ALLOCED;
}
if (scsi_alloc_out_of_range ||
- !hdata->dma_bounce_buffer) {
- hdata->dma_bounce_buffer =
- amiga_chip_alloc(hdata->dma_bounce_len,
+ !wh->dma_bounce_buffer) {
+ wh->dma_bounce_buffer =
+ amiga_chip_alloc(wh->dma_bounce_len,
"GVP II SCSI Bounce Buffer");
- if (!hdata->dma_bounce_buffer) {
- hdata->dma_bounce_len = 0;
+ if (!wh->dma_bounce_buffer) {
+ wh->dma_bounce_len = 0;
return 1;
}
- hdata->dma_buffer_pool = BUF_CHIP_ALLOCED;
+ wh->dma_buffer_pool = BUF_CHIP_ALLOCED;
}
/* check if the address of the bounce buffer is OK */
- addr = virt_to_bus(hdata->dma_bounce_buffer);
+ addr = virt_to_bus(wh->dma_bounce_buffer);
- if (addr & hdata->dma_xfer_mask) {
+ if (addr & wh->dma_xfer_mask) {
/* fall back to Chip RAM if address out of range */
- if (hdata->dma_buffer_pool == BUF_SCSI_ALLOCED) {
- kfree(hdata->dma_bounce_buffer);
+ if (wh->dma_buffer_pool == BUF_SCSI_ALLOCED) {
+ kfree(wh->dma_bounce_buffer);
scsi_alloc_out_of_range = 1;
} else {
- amiga_chip_free(hdata->dma_bounce_buffer);
+ amiga_chip_free(wh->dma_bounce_buffer);
}
- hdata->dma_bounce_buffer =
- amiga_chip_alloc(hdata->dma_bounce_len,
+ wh->dma_bounce_buffer =
+ amiga_chip_alloc(wh->dma_bounce_len,
"GVP II SCSI Bounce Buffer");
- if (!hdata->dma_bounce_buffer) {
- hdata->dma_bounce_len = 0;
+ if (!wh->dma_bounce_buffer) {
+ wh->dma_bounce_len = 0;
return 1;
}
- addr = virt_to_bus(hdata->dma_bounce_buffer);
- hdata->dma_buffer_pool = BUF_CHIP_ALLOCED;
+ addr = virt_to_bus(wh->dma_bounce_buffer);
+ wh->dma_buffer_pool = BUF_CHIP_ALLOCED;
}
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);
}
}
@@ -111,7 +117,7 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
if (!dir_in)
cntr |= GVP11_DMAC_DIR_WRITE;
- hdata->dma_dir = dir_in;
+ wh->dma_dir = dir_in;
regs->CNTR = cntr;
/* setup DMA *physical* address */
@@ -125,7 +131,7 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
cache_push(addr, cmd->SCp.this_residual);
}
- bank_mask = (~hdata->dma_xfer_mask >> 18) & 0x01c0;
+ bank_mask = (~wh->dma_xfer_mask >> 18) & 0x01c0;
if (bank_mask)
regs->BANK = bank_mask & (addr >> 18);
@@ -139,8 +145,9 @@ 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 gvp11_scsiregs *regs = (struct gvp11_scsiregs *)(instance->base);
- struct WD33C93_hostdata *hdata = shost_priv(instance);
+ struct gvp11_hostdata *hdata = shost_priv(instance);
+ struct WD33C93_hostdata *wh = &hdata->wh;
+ struct gvp11_scsiregs *regs = hdata->regs;
/* stop DMA */
regs->SP_DMA = 1;
@@ -148,18 +155,18 @@ static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
regs->CNTR = GVP11_DMAC_INT_ENABLE;
/* copy from a bounce buffer, if necessary */
- if (status && hdata->dma_bounce_buffer) {
- if (hdata->dma_dir && SCpnt)
- memcpy(SCpnt->SCp.ptr, hdata->dma_bounce_buffer,
+ if (status && wh->dma_bounce_buffer) {
+ if (wh->dma_dir && SCpnt)
+ memcpy(SCpnt->SCp.ptr, wh->dma_bounce_buffer,
SCpnt->SCp.this_residual);
- if (hdata->dma_buffer_pool == BUF_SCSI_ALLOCED)
- kfree(hdata->dma_bounce_buffer);
+ if (wh->dma_buffer_pool == BUF_SCSI_ALLOCED)
+ kfree(wh->dma_bounce_buffer);
else
- amiga_chip_free(hdata->dma_bounce_buffer);
+ amiga_chip_free(wh->dma_bounce_buffer);
- hdata->dma_bounce_buffer = NULL;
- hdata->dma_bounce_len = 0;
+ wh->dma_bounce_buffer = NULL;
+ wh->dma_bounce_len = 0;
}
}
@@ -284,7 +291,7 @@ static int __devinit gvp11_probe(struct zorro_dev *z,
int error;
unsigned int epc;
unsigned int default_dma_xfer_mask;
- struct WD33C93_hostdata *hdata;
+ struct gvp11_hostdata *hdata;
struct gvp11_scsiregs *regs;
wd33c93_regs wdregs;
@@ -309,13 +316,12 @@ static int __devinit gvp11_probe(struct zorro_dev *z,
goto fail_check_or_alloc;
instance = scsi_host_alloc(&gvp11_scsi_template,
- sizeof(struct WD33C93_hostdata));
+ sizeof(struct gvp11_hostdata));
if (!instance) {
error = -ENOMEM;
goto fail_check_or_alloc;
}
- instance->base = (unsigned long)regs;
instance->irq = IRQ_AMIGA_PORTS;
instance->unique_id = z->slotaddr;
@@ -332,13 +338,14 @@ static int __devinit gvp11_probe(struct zorro_dev *z,
hdata = shost_priv(instance);
if (gvp11_xfer_mask)
- hdata->dma_xfer_mask = gvp11_xfer_mask;
+ hdata->wh.dma_xfer_mask = gvp11_xfer_mask;
else
- hdata->dma_xfer_mask = default_dma_xfer_mask;
+ hdata->wh.dma_xfer_mask = default_dma_xfer_mask;
- 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;
/*
* Check for 14MHz SCSI clock
@@ -375,9 +382,9 @@ fail_check_or_alloc:
static void __devexit gvp11_remove(struct zorro_dev *z)
{
struct Scsi_Host *instance = zorro_get_drvdata(z);
- struct gvp11_scsiregs *regs = (struct gvp11_scsiregs *)(instance->base);
+ struct gvp11_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);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 05:24:49 +0100