diff options
| -rw-r--r-- | drivers/scsi/gvp11.c | 52 |
1 files changed, 28 insertions, 24 deletions
diff --git a/drivers/scsi/gvp11.c b/drivers/scsi/gvp11.c index 18b7102bb80e..777972e6bbf3 100644 --- a/drivers/scsi/gvp11.c +++ b/drivers/scsi/gvp11.c @@ -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; @@ -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; @@ -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 */ @@ -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; @@ -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) { @@ -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; @@ -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 = ®s->SASR; + wdregs.SCMD = ®s->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; @@ -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 |