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@@ -13,111 +13,115 @@
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#include "wd33c93.h"
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#include "mvme147.h"
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-#include<linux/stat.h>
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+#include <linux/stat.h>
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-#define HDATA(ptr) ((struct WD33C93_hostdata *)((ptr)->hostdata))
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+
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+#define HDATA(ptr) ((struct WD33C93_hostdata *)((ptr)->hostdata))
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static struct Scsi_Host *mvme147_host = NULL;
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-static irqreturn_t mvme147_intr (int irq, void *dummy)
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+static irqreturn_t mvme147_intr(int irq, void *dummy)
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{
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- if (irq == MVME147_IRQ_SCSI_PORT)
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- wd33c93_intr (mvme147_host);
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- else
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- m147_pcc->dma_intr = 0x89; /* Ack and enable ints */
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- return IRQ_HANDLED;
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+ if (irq == MVME147_IRQ_SCSI_PORT)
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+ wd33c93_intr(mvme147_host);
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+ else
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+ m147_pcc->dma_intr = 0x89; /* Ack and enable ints */
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+ return IRQ_HANDLED;
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}
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static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
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{
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- unsigned char flags = 0x01;
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- unsigned long addr = virt_to_bus(cmd->SCp.ptr);
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-
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- /* setup dma direction */
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- if (!dir_in)
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- flags |= 0x04;
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-
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- /* remember direction */
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- HDATA(mvme147_host)->dma_dir = dir_in;
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-
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- if (dir_in)
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- /* invalidate any cache */
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- cache_clear (addr, cmd->SCp.this_residual);
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- else
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- /* push any dirty cache */
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- cache_push (addr, cmd->SCp.this_residual);
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-
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- /* start DMA */
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- m147_pcc->dma_bcr = cmd->SCp.this_residual | (1<<24);
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- m147_pcc->dma_dadr = addr;
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- m147_pcc->dma_cntrl = flags;
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-
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- /* return success */
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- return 0;
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+ unsigned char flags = 0x01;
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+ unsigned long addr = virt_to_bus(cmd->SCp.ptr);
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+
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+ /* setup dma direction */
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+ if (!dir_in)
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+ flags |= 0x04;
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+
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+ /* remember direction */
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+ HDATA(mvme147_host)->dma_dir = dir_in;
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+
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+ if (dir_in) {
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+ /* invalidate any cache */
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+ cache_clear(addr, cmd->SCp.this_residual);
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+ } else {
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+ /* push any dirty cache */
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+ cache_push(addr, cmd->SCp.this_residual);
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+ }
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+
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+ /* start DMA */
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+ m147_pcc->dma_bcr = cmd->SCp.this_residual | (1 << 24);
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+ m147_pcc->dma_dadr = addr;
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+ m147_pcc->dma_cntrl = flags;
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+
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+ /* return success */
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+ return 0;
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}
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static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
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- int status)
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+ int status)
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{
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- m147_pcc->dma_cntrl = 0;
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+ m147_pcc->dma_cntrl = 0;
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}
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int mvme147_detect(struct scsi_host_template *tpnt)
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{
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- static unsigned char called = 0;
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- wd33c93_regs regs;
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-
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- if (!MACH_IS_MVME147 || called)
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- return 0;
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- called++;
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-
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- tpnt->proc_name = "MVME147";
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- tpnt->proc_info = &wd33c93_proc_info;
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-
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- mvme147_host = scsi_register (tpnt, sizeof(struct WD33C93_hostdata));
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- if (!mvme147_host)
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- goto err_out;
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-
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- mvme147_host->base = 0xfffe4000;
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- mvme147_host->irq = MVME147_IRQ_SCSI_PORT;
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- regs.SASR = (volatile unsigned char *)0xfffe4000;
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- regs.SCMD = (volatile unsigned char *)0xfffe4001;
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- HDATA(mvme147_host)->no_sync = 0xff;
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- HDATA(mvme147_host)->fast = 0;
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- HDATA(mvme147_host)->dma_mode = CTRL_DMA;
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- wd33c93_init(mvme147_host, regs, dma_setup, dma_stop, WD33C93_FS_8_10);
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-
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- if (request_irq(MVME147_IRQ_SCSI_PORT, mvme147_intr, 0, "MVME147 SCSI PORT", mvme147_intr))
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- goto err_unregister;
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- if (request_irq(MVME147_IRQ_SCSI_DMA, mvme147_intr, 0, "MVME147 SCSI DMA", mvme147_intr))
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- goto err_free_irq;
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+ static unsigned char called = 0;
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+ wd33c93_regs regs;
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+
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+ if (!MACH_IS_MVME147 || called)
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+ return 0;
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+ called++;
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+
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+ tpnt->proc_name = "MVME147";
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+ tpnt->proc_info = &wd33c93_proc_info;
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+
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+ mvme147_host = scsi_register(tpnt, sizeof(struct WD33C93_hostdata));
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+ if (!mvme147_host)
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+ goto err_out;
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+
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+ mvme147_host->base = 0xfffe4000;
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+ mvme147_host->irq = MVME147_IRQ_SCSI_PORT;
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+ regs.SASR = (volatile unsigned char *)0xfffe4000;
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+ regs.SCMD = (volatile unsigned char *)0xfffe4001;
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+ HDATA(mvme147_host)->no_sync = 0xff;
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+ HDATA(mvme147_host)->fast = 0;
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+ HDATA(mvme147_host)->dma_mode = CTRL_DMA;
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+ wd33c93_init(mvme147_host, regs, dma_setup, dma_stop, WD33C93_FS_8_10);
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+
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+ if (request_irq(MVME147_IRQ_SCSI_PORT, mvme147_intr, 0,
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+ "MVME147 SCSI PORT", mvme147_intr))
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+ goto err_unregister;
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+ if (request_irq(MVME147_IRQ_SCSI_DMA, mvme147_intr, 0,
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+ "MVME147 SCSI DMA", mvme147_intr))
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+ goto err_free_irq;
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#if 0 /* Disabled; causes problems booting */
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- m147_pcc->scsi_interrupt = 0x10; /* Assert SCSI bus reset */
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- udelay(100);
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- m147_pcc->scsi_interrupt = 0x00; /* Negate SCSI bus reset */
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- udelay(2000);
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- m147_pcc->scsi_interrupt = 0x40; /* Clear bus reset interrupt */
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+ m147_pcc->scsi_interrupt = 0x10; /* Assert SCSI bus reset */
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+ udelay(100);
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+ m147_pcc->scsi_interrupt = 0x00; /* Negate SCSI bus reset */
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+ udelay(2000);
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+ m147_pcc->scsi_interrupt = 0x40; /* Clear bus reset interrupt */
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#endif
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- m147_pcc->scsi_interrupt = 0x09; /* Enable interrupt */
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+ m147_pcc->scsi_interrupt = 0x09; /* Enable interrupt */
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- m147_pcc->dma_cntrl = 0x00; /* ensure DMA is stopped */
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- m147_pcc->dma_intr = 0x89; /* Ack and enable ints */
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+ m147_pcc->dma_cntrl = 0x00; /* ensure DMA is stopped */
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+ m147_pcc->dma_intr = 0x89; /* Ack and enable ints */
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- return 1;
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+ return 1;
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- err_free_irq:
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- free_irq(MVME147_IRQ_SCSI_PORT, mvme147_intr);
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- err_unregister:
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- scsi_unregister(mvme147_host);
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- err_out:
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- return 0;
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+err_free_irq:
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+ free_irq(MVME147_IRQ_SCSI_PORT, mvme147_intr);
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+err_unregister:
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+ scsi_unregister(mvme147_host);
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+err_out:
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+ return 0;
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}
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static int mvme147_bus_reset(struct scsi_cmnd *cmd)
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{
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/* FIXME perform bus-specific reset */
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- /* FIXME 2: kill this function, and let midlayer fallback to
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+ /* FIXME 2: kill this function, and let midlayer fallback to
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the same result, calling wd33c93_host_reset() */
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spin_lock_irq(cmd->device->host->host_lock);
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@@ -153,9 +157,9 @@ static struct scsi_host_template driver_template = {
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int mvme147_release(struct Scsi_Host *instance)
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{
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#ifdef MODULE
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- /* XXX Make sure DMA is stopped! */
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- free_irq(MVME147_IRQ_SCSI_PORT, mvme147_intr);
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- free_irq(MVME147_IRQ_SCSI_DMA, mvme147_intr);
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+ /* XXX Make sure DMA is stopped! */
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+ free_irq(MVME147_IRQ_SCSI_PORT, mvme147_intr);
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+ free_irq(MVME147_IRQ_SCSI_DMA, mvme147_intr);
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#endif
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- return 1;
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+ return 1;
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}
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