diff options
Diffstat (limited to 'drivers/scsi/sun3_scsi.c')
| -rw-r--r-- | drivers/scsi/sun3_scsi.c | 80 |
1 files changed, 44 insertions, 36 deletions
diff --git a/drivers/scsi/sun3_scsi.c b/drivers/scsi/sun3_scsi.c index 3c4c07038948..88db6992420e 100644 --- a/drivers/scsi/sun3_scsi.c +++ b/drivers/scsi/sun3_scsi.c @@ -43,20 +43,18 @@ #define NCR5380_implementation_fields /* none */ -#define NCR5380_read(reg) sun3scsi_read(reg) -#define NCR5380_write(reg, value) sun3scsi_write(reg, value) +#define NCR5380_read(reg) in_8(hostdata->io + (reg)) +#define NCR5380_write(reg, value) out_8(hostdata->io + (reg), value) #define NCR5380_queue_command sun3scsi_queue_command #define NCR5380_bus_reset sun3scsi_bus_reset #define NCR5380_abort sun3scsi_abort #define NCR5380_info sun3scsi_info -#define NCR5380_dma_recv_setup(instance, data, count) (count) -#define NCR5380_dma_send_setup(instance, data, count) (count) -#define NCR5380_dma_residual(instance) \ - sun3scsi_dma_residual(instance) -#define NCR5380_dma_xfer_len(instance, cmd, phase) \ - sun3scsi_dma_xfer_len(cmd->SCp.this_residual, cmd) +#define NCR5380_dma_xfer_len sun3scsi_dma_xfer_len +#define NCR5380_dma_recv_setup sun3scsi_dma_count +#define NCR5380_dma_send_setup sun3scsi_dma_count +#define NCR5380_dma_residual sun3scsi_dma_residual #define NCR5380_acquire_dma_irq(instance) (1) #define NCR5380_release_dma_irq(instance) @@ -82,7 +80,6 @@ module_param(setup_hostid, int, 0); #define SUN3_DVMA_BUFSIZE 0xe000 static struct scsi_cmnd *sun3_dma_setup_done; -static unsigned char *sun3_scsi_regp; static volatile struct sun3_dma_regs *dregs; static struct sun3_udc_regs *udc_regs; static unsigned char *sun3_dma_orig_addr; @@ -90,20 +87,6 @@ static unsigned long sun3_dma_orig_count; static int sun3_dma_active; static unsigned long last_residual; -/* - * NCR 5380 register access functions - */ - -static inline unsigned char sun3scsi_read(int reg) -{ - return in_8(sun3_scsi_regp + reg); -} - -static inline void sun3scsi_write(int reg, int value) -{ - out_8(sun3_scsi_regp + reg, value); -} - #ifndef SUN3_SCSI_VME /* dma controller register access functions */ @@ -158,8 +141,8 @@ static irqreturn_t scsi_sun3_intr(int irq, void *dev) } /* sun3scsi_dma_setup() -- initialize the dma controller for a read/write */ -static unsigned long sun3scsi_dma_setup(struct Scsi_Host *instance, - void *data, unsigned long count, int write_flag) +static int sun3scsi_dma_setup(struct NCR5380_hostdata *hostdata, + unsigned char *data, int count, int write_flag) { void *addr; @@ -211,9 +194,10 @@ static unsigned long sun3scsi_dma_setup(struct Scsi_Host *instance, dregs->csr |= CSR_FIFO; if(dregs->fifo_count != count) { - shost_printk(KERN_ERR, instance, "FIFO mismatch %04x not %04x\n", + shost_printk(KERN_ERR, hostdata->host, + "FIFO mismatch %04x not %04x\n", dregs->fifo_count, (unsigned int) count); - NCR5380_dprint(NDEBUG_DMA, instance); + NCR5380_dprint(NDEBUG_DMA, hostdata->host); } /* setup udc */ @@ -248,14 +232,34 @@ static unsigned long sun3scsi_dma_setup(struct Scsi_Host *instance, } -static inline unsigned long sun3scsi_dma_residual(struct Scsi_Host *instance) +static int sun3scsi_dma_count(struct NCR5380_hostdata *hostdata, + unsigned char *data, int count) +{ + return count; +} + +static inline int sun3scsi_dma_recv_setup(struct NCR5380_hostdata *hostdata, + unsigned char *data, int count) +{ + return sun3scsi_dma_setup(hostdata, data, count, 0); +} + +static inline int sun3scsi_dma_send_setup(struct NCR5380_hostdata *hostdata, + unsigned char *data, int count) +{ + return sun3scsi_dma_setup(hostdata, data, count, 1); +} + +static int sun3scsi_dma_residual(struct NCR5380_hostdata *hostdata) { return last_residual; } -static inline unsigned long sun3scsi_dma_xfer_len(unsigned long wanted_len, - struct scsi_cmnd *cmd) +static int sun3scsi_dma_xfer_len(struct NCR5380_hostdata *hostdata, + struct scsi_cmnd *cmd) { + int wanted_len = cmd->SCp.this_residual; + if (wanted_len < DMA_MIN_SIZE || cmd->request->cmd_type != REQ_TYPE_FS) return 0; @@ -428,9 +432,10 @@ static struct scsi_host_template sun3_scsi_template = { static int __init sun3_scsi_probe(struct platform_device *pdev) { struct Scsi_Host *instance; + struct NCR5380_hostdata *hostdata; int error; struct resource *irq, *mem; - unsigned char *ioaddr; + void __iomem *ioaddr; int host_flags = 0; #ifdef SUN3_SCSI_VME int i; @@ -493,8 +498,6 @@ static int __init sun3_scsi_probe(struct platform_device *pdev) } #endif - sun3_scsi_regp = ioaddr; - instance = scsi_host_alloc(&sun3_scsi_template, sizeof(struct NCR5380_hostdata)); if (!instance) { @@ -502,9 +505,12 @@ static int __init sun3_scsi_probe(struct platform_device *pdev) goto fail_alloc; } - instance->io_port = (unsigned long)ioaddr; instance->irq = irq->start; + hostdata = shost_priv(instance); + hostdata->base = mem->start; + hostdata->io = ioaddr; + error = NCR5380_init(instance, host_flags); if (error) goto fail_init; @@ -552,13 +558,15 @@ fail_init: fail_alloc: if (udc_regs) dvma_free(udc_regs); - iounmap(sun3_scsi_regp); + iounmap(ioaddr); return error; } static int __exit sun3_scsi_remove(struct platform_device *pdev) { struct Scsi_Host *instance = platform_get_drvdata(pdev); + struct NCR5380_hostdata *hostdata = shost_priv(instance); + void __iomem *ioaddr = hostdata->io; scsi_remove_host(instance); free_irq(instance->irq, instance); @@ -566,7 +574,7 @@ static int __exit sun3_scsi_remove(struct platform_device *pdev) scsi_host_put(instance); if (udc_regs) dvma_free(udc_regs); - iounmap(sun3_scsi_regp); + iounmap(ioaddr); return 0; } |