-static int __init a2091_detect(struct scsi_host_template *tpnt)
-{
- static unsigned char called = 0;
- struct Scsi_Host *instance;
- unsigned long address;
- struct zorro_dev *z = NULL;
- wd33c93_regs regs;
- int num_a2091 = 0;
-
- if (!MACH_IS_AMIGA || called)
- return 0;
- called = 1;
-
- tpnt->proc_name = "A2091";
- tpnt->proc_info = &wd33c93_proc_info;
-
- while ((z = zorro_find_device(ZORRO_WILDCARD, z))) {
- if (z->id != ZORRO_PROD_CBM_A590_A2091_1 &&
- z->id != ZORRO_PROD_CBM_A590_A2091_2)
- continue;
- address = z->resource.start;
- if (!request_mem_region(address, 256, "wd33c93"))
- continue;
-
- instance = scsi_register (tpnt, sizeof (struct WD33C93_hostdata));
- if (instance == NULL)
- goto release;
- instance->base = ZTWO_VADDR(address);
- instance->irq = IRQ_AMIGA_PORTS;
- instance->unique_id = z->slotaddr;
- DMA(instance)->DAWR = DAWR_A2091;
- 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;
- wd33c93_init(instance, regs, dma_setup, dma_stop, WD33C93_FS_8_10);
- if (request_irq(IRQ_AMIGA_PORTS, a2091_intr, IRQF_SHARED, "A2091 SCSI",
- instance))
- goto unregister;
- DMA(instance)->CNTR = CNTR_PDMD | CNTR_INTEN;
- num_a2091++;
- continue;
-
-unregister:
- scsi_unregister(instance);
- wd33c93_release();
-release:
- release_mem_region(address, 256);
- }
-
- return num_a2091;
+ /* disable SCSI interrupts */
+ unsigned short cntr = CNTR_PDMD;
+
+ if (!wh->dma_dir)
+ cntr |= CNTR_DDIR;
+
+ /* disable SCSI interrupts */
+ regs->CNTR = cntr;
+
+ /* flush if we were reading */
+ if (wh->dma_dir) {
+ regs->FLUSH = 1;
+ while (!(regs->ISTR & ISTR_FE_FLG))
+ ;
+ }
+
+ /* clear a possible interrupt */
+ regs->CINT = 1;
+
+ /* stop DMA */
+ regs->SP_DMA = 1;
+
+ /* restore the CONTROL bits (minus the direction flag) */
+ regs->CNTR = CNTR_PDMD | CNTR_INTEN;
+
+ /* copy from a bounce buffer, if necessary */
+ if (status && wh->dma_bounce_buffer) {
+ if (wh->dma_dir)
+ memcpy(SCpnt->SCp.ptr, wh->dma_bounce_buffer,
+ SCpnt->SCp.this_residual);
+ kfree(wh->dma_bounce_buffer);
+ wh->dma_bounce_buffer = NULL;
+ wh->dma_bounce_len = 0;
+ }