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path: root/drivers/scsi/gvp11.c
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Diffstat (limited to 'drivers/scsi/gvp11.c')
-rw-r--r--drivers/scsi/gvp11.c93
1 files changed, 46 insertions, 47 deletions
diff --git a/drivers/scsi/gvp11.c b/drivers/scsi/gvp11.c
index bd5d90328ee..18b7102bb80 100644
--- a/drivers/scsi/gvp11.c
+++ b/drivers/scsi/gvp11.c
@@ -23,7 +23,6 @@
#define DMA(ptr) ((gvp11_scsiregs *)((ptr)->base))
-#define HDATA(ptr) ((struct WD33C93_hostdata *)((ptr)->hostdata))
static irqreturn_t gvp11_intr(int irq, void *_instance)
{
@@ -50,70 +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);
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(cmd->device->host)->dma_xfer_mask) {
- HDATA(cmd->device->host)->dma_bounce_len =
- (cmd->SCp.this_residual + 511) & ~0x1ff;
+ if (addr & hdata->dma_xfer_mask) {
+ hdata->dma_bounce_len = (cmd->SCp.this_residual + 511) & ~0x1ff;
if (!scsi_alloc_out_of_range) {
- HDATA(cmd->device->host)->dma_bounce_buffer =
- kmalloc(HDATA(cmd->device->host)->dma_bounce_len,
- GFP_KERNEL);
- HDATA(cmd->device->host)->dma_buffer_pool =
- BUF_SCSI_ALLOCED;
+ hdata->dma_bounce_buffer =
+ kmalloc(hdata->dma_bounce_len, GFP_KERNEL);
+ hdata->dma_buffer_pool = BUF_SCSI_ALLOCED;
}
if (scsi_alloc_out_of_range ||
- !HDATA(cmd->device->host)->dma_bounce_buffer) {
- HDATA(cmd->device->host)->dma_bounce_buffer =
- amiga_chip_alloc(HDATA(cmd->device->host)->dma_bounce_len,
+ !hdata->dma_bounce_buffer) {
+ hdata->dma_bounce_buffer =
+ amiga_chip_alloc(hdata->dma_bounce_len,
"GVP II SCSI Bounce Buffer");
- if (!HDATA(cmd->device->host)->dma_bounce_buffer) {
- HDATA(cmd->device->host)->dma_bounce_len = 0;
+ if (!hdata->dma_bounce_buffer) {
+ hdata->dma_bounce_len = 0;
return 1;
}
- HDATA(cmd->device->host)->dma_buffer_pool =
- BUF_CHIP_ALLOCED;
+ hdata->dma_buffer_pool = BUF_CHIP_ALLOCED;
}
/* check if the address of the bounce buffer is OK */
- addr = virt_to_bus(HDATA(cmd->device->host)->dma_bounce_buffer);
+ addr = virt_to_bus(hdata->dma_bounce_buffer);
- if (addr & HDATA(cmd->device->host)->dma_xfer_mask) {
+ if (addr & hdata->dma_xfer_mask) {
/* fall back to Chip RAM if address out of range */
- if (HDATA(cmd->device->host)->dma_buffer_pool ==
- BUF_SCSI_ALLOCED) {
- kfree(HDATA(cmd->device->host)->dma_bounce_buffer);
+ if (hdata->dma_buffer_pool == BUF_SCSI_ALLOCED) {
+ kfree(hdata->dma_bounce_buffer);
scsi_alloc_out_of_range = 1;
} else {
- amiga_chip_free(HDATA(cmd->device->host)->dma_bounce_buffer);
+ amiga_chip_free(hdata->dma_bounce_buffer);
}
- HDATA(cmd->device->host)->dma_bounce_buffer =
- amiga_chip_alloc(HDATA(cmd->device->host)->dma_bounce_len,
+ hdata->dma_bounce_buffer =
+ amiga_chip_alloc(hdata->dma_bounce_len,
"GVP II SCSI Bounce Buffer");
- if (!HDATA(cmd->device->host)->dma_bounce_buffer) {
- HDATA(cmd->device->host)->dma_bounce_len = 0;
+ if (!hdata->dma_bounce_buffer) {
+ hdata->dma_bounce_len = 0;
return 1;
}
- addr = virt_to_bus(HDATA(cmd->device->host)->dma_bounce_buffer);
- HDATA(cmd->device->host)->dma_buffer_pool =
- BUF_CHIP_ALLOCED;
+ addr = virt_to_bus(hdata->dma_bounce_buffer);
+ hdata->dma_buffer_pool = BUF_CHIP_ALLOCED;
}
if (!dir_in) {
/* copy to bounce buffer for a write */
- memcpy(HDATA(cmd->device->host)->dma_bounce_buffer,
- cmd->SCp.ptr, cmd->SCp.this_residual);
+ memcpy(hdata->dma_bounce_buffer, cmd->SCp.ptr,
+ cmd->SCp.this_residual);
}
}
@@ -121,7 +116,7 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
if (!dir_in)
cntr |= GVP11_DMAC_DIR_WRITE;
- HDATA(cmd->device->host)->dma_dir = dir_in;
+ hdata->dma_dir = dir_in;
DMA(cmd->device->host)->CNTR = cntr;
/* setup DMA *physical* address */
@@ -135,7 +130,8 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
cache_push(addr, cmd->SCp.this_residual);
}
- if ((bank_mask = (~HDATA(cmd->device->host)->dma_xfer_mask >> 18) & 0x01c0))
+ bank_mask = (~hdata->dma_xfer_mask >> 18) & 0x01c0;
+ if (bank_mask)
DMA(cmd->device->host)->BANK = bank_mask & (addr >> 18);
/* start DMA */
@@ -148,25 +144,26 @@ 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);
+
/* stop DMA */
DMA(instance)->SP_DMA = 1;
/* remove write bit from CONTROL bits */
DMA(instance)->CNTR = GVP11_DMAC_INT_ENABLE;
/* copy from a bounce buffer, if necessary */
- if (status && HDATA(instance)->dma_bounce_buffer) {
- if (HDATA(instance)->dma_dir && SCpnt)
- memcpy(SCpnt->SCp.ptr,
- HDATA(instance)->dma_bounce_buffer,
+ if (status && hdata->dma_bounce_buffer) {
+ if (hdata->dma_dir && SCpnt)
+ memcpy(SCpnt->SCp.ptr, hdata->dma_bounce_buffer,
SCpnt->SCp.this_residual);
- if (HDATA(instance)->dma_buffer_pool == BUF_SCSI_ALLOCED)
- kfree(HDATA(instance)->dma_bounce_buffer);
+ if (hdata->dma_buffer_pool == BUF_SCSI_ALLOCED)
+ kfree(hdata->dma_bounce_buffer);
else
- amiga_chip_free(HDATA(instance)->dma_bounce_buffer);
+ amiga_chip_free(hdata->dma_bounce_buffer);
- HDATA(instance)->dma_bounce_buffer = NULL;
- HDATA(instance)->dma_bounce_len = 0;
+ hdata->dma_bounce_buffer = NULL;
+ hdata->dma_bounce_len = 0;
}
}
@@ -180,6 +177,7 @@ int __init gvp11_detect(struct scsi_host_template *tpnt)
unsigned int epc;
struct zorro_dev *z = NULL;
unsigned int default_dma_xfer_mask;
+ struct WD33C93_hostdata *hdata;
wd33c93_regs regs;
int num_gvp11 = 0;
#ifdef CHECK_WD33C93
@@ -306,10 +304,11 @@ int __init gvp11_detect(struct scsi_host_template *tpnt)
instance->irq = IRQ_AMIGA_PORTS;
instance->unique_id = z->slotaddr;
+ hdata = shost_priv(instance);
if (gvp11_xfer_mask)
- HDATA(instance)->dma_xfer_mask = gvp11_xfer_mask;
+ hdata->dma_xfer_mask = gvp11_xfer_mask;
else
- HDATA(instance)->dma_xfer_mask = default_dma_xfer_mask;
+ hdata->dma_xfer_mask = default_dma_xfer_mask;
DMA(instance)->secret2 = 1;
DMA(instance)->secret1 = 0;
@@ -327,9 +326,9 @@ int __init gvp11_detect(struct scsi_host_template *tpnt)
*/
regs.SASR = &(DMA(instance)->SASR);
regs.SCMD = &(DMA(instance)->SCMD);
- HDATA(instance)->no_sync = 0xff;
- HDATA(instance)->fast = 0;
- HDATA(instance)->dma_mode = CTRL_DMA;
+ hdata->no_sync = 0xff;
+ hdata->fast = 0;
+ hdata->dma_mode = CTRL_DMA;
wd33c93_init(instance, regs, dma_setup, dma_stop,
(epc & GVP_SCSICLKMASK) ? WD33C93_FS_8_10
: WD33C93_FS_12_15);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-10 15:50:12 +0000