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yaml
---
r: 198888
b: refs/heads/master
c: 6869b15
h: refs/heads/master
v: v3
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Geert Uytterhoeven committed May 26, 2010
1 parent d50ea10 commit 9ca9d83
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Showing 2 changed files with 29 additions and 25 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: dd6c26a66bdc629a500174ffe73b010b070b9f1b
refs/heads/master: 6869b15efccce954a28d14c84b25350d125e2f93
52 changes: 28 additions & 24 deletions trunk/drivers/scsi/gvp11.c
Original file line number Diff line number Diff line change
Expand Up @@ -22,15 +22,13 @@
#include <linux/stat.h>


#define DMA(ptr) ((gvp11_scsiregs *)((ptr)->base))

static irqreturn_t gvp11_intr(int irq, void *_instance)
static irqreturn_t gvp11_intr(int irq, void *data)
{
struct Scsi_Host *instance = data;
gvp11_scsiregs *regs = (gvp11_scsiregs *)(instance->base);
unsigned int status = regs->CNTR;
unsigned long flags;
unsigned int status;
struct Scsi_Host *instance = (struct Scsi_Host *)_instance;

status = DMA(instance)->CNTR;
if (!(status & GVP11_DMAC_INT_PENDING))
return IRQ_NONE;

Expand All @@ -51,6 +49,7 @@ 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);
gvp11_scsiregs *regs = (gvp11_scsiregs *)(instance->base);
unsigned short cntr = GVP11_DMAC_INT_ENABLE;
unsigned long addr = virt_to_bus(cmd->SCp.ptr);
int bank_mask;
Expand Down Expand Up @@ -117,10 +116,10 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
cntr |= GVP11_DMAC_DIR_WRITE;

hdata->dma_dir = dir_in;
DMA(cmd->device->host)->CNTR = cntr;
regs->CNTR = cntr;

/* setup DMA *physical* address */
DMA(cmd->device->host)->ACR = addr;
regs->ACR = addr;

if (dir_in) {
/* invalidate any cache */
Expand All @@ -132,10 +131,10 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)

bank_mask = (~hdata->dma_xfer_mask >> 18) & 0x01c0;
if (bank_mask)
DMA(cmd->device->host)->BANK = bank_mask & (addr >> 18);
regs->BANK = bank_mask & (addr >> 18);

/* start DMA */
DMA(cmd->device->host)->ST_DMA = 1;
regs->ST_DMA = 1;

/* return success */
return 0;
Expand All @@ -144,12 +143,13 @@ 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)
{
gvp11_scsiregs *regs = (gvp11_scsiregs *)(instance->base);
struct WD33C93_hostdata *hdata = shost_priv(instance);

/* stop DMA */
DMA(instance)->SP_DMA = 1;
regs->SP_DMA = 1;
/* remove write bit from CONTROL bits */
DMA(instance)->CNTR = GVP11_DMAC_INT_ENABLE;
regs->CNTR = GVP11_DMAC_INT_ENABLE;

/* copy from a bounce buffer, if necessary */
if (status && hdata->dma_bounce_buffer) {
Expand Down Expand Up @@ -178,7 +178,8 @@ int __init gvp11_detect(struct scsi_host_template *tpnt)
struct zorro_dev *z = NULL;
unsigned int default_dma_xfer_mask;
struct WD33C93_hostdata *hdata;
wd33c93_regs regs;
gvp11_scsiregs *regs;
wd33c93_regs wdregs;
int num_gvp11 = 0;
#ifdef CHECK_WD33C93
volatile unsigned char *sasr_3393, *scmd_3393;
Expand Down Expand Up @@ -310,33 +311,34 @@ int __init gvp11_detect(struct scsi_host_template *tpnt)
else
hdata->dma_xfer_mask = default_dma_xfer_mask;

DMA(instance)->secret2 = 1;
DMA(instance)->secret1 = 0;
DMA(instance)->secret3 = 15;
while (DMA(instance)->CNTR & GVP11_DMAC_BUSY)
regs = (gvp11_scsiregs *)(instance->base);
regs->secret2 = 1;
regs->secret1 = 0;
regs->secret3 = 15;
while (regs->CNTR & GVP11_DMAC_BUSY)
;
DMA(instance)->CNTR = 0;
regs->CNTR = 0;

DMA(instance)->BANK = 0;
regs->BANK = 0;

epc = *(unsigned short *)(ZTWO_VADDR(address) + 0x8000);

/*
* Check for 14MHz SCSI clock
*/
regs.SASR = &(DMA(instance)->SASR);
regs.SCMD = &(DMA(instance)->SCMD);
wdregs.SASR = &regs->SASR;
wdregs.SCMD = &regs->SCMD;
hdata->no_sync = 0xff;
hdata->fast = 0;
hdata->dma_mode = CTRL_DMA;
wd33c93_init(instance, regs, dma_setup, dma_stop,
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;
DMA(instance)->CNTR = GVP11_DMAC_INT_ENABLE;
regs->CNTR = GVP11_DMAC_INT_ENABLE;
num_gvp11++;
continue;

Expand Down Expand Up @@ -391,7 +393,9 @@ static struct scsi_host_template driver_template = {
int gvp11_release(struct Scsi_Host *instance)
{
#ifdef MODULE
DMA(instance)->CNTR = 0;
gvp11_scsiregs *regs = (gvp11_scsiregs *)(instance->base);

regs->CNTR = 0;
release_mem_region(ZTWO_PADDR(instance->base), 256);
free_irq(IRQ_AMIGA_PORTS, instance);
#endif
Expand Down

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