diff options
| -rw-r--r-- | drivers/scsi/gvp11.c | 93 |
1 files changed, 46 insertions, 47 deletions
diff --git a/drivers/scsi/gvp11.c b/drivers/scsi/gvp11.c index bd5d90328ee0..18b7102bb80e 100644 --- a/drivers/scsi/gvp11.c +++ b/drivers/scsi/gvp11.c @@ -23,7 +23,6 @@ #define DMA(ptr) ((gvp11_scsiregs *)((ptr)->base)) -#define HDATA(ptr) ((struct WD33C93_hostdata *)((ptr)->hostdata)) static irqreturn_t gvp11_intr(int irq, void *_instance) { @@ -50,70 +49,66 @@ void gvp11_setup(char *str, int *ints) 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); unsigned short cntr = GVP11_DMAC_INT_ENABLE; unsigned long addr = virt_to_bus(cmd->SCp.ptr); int bank_mask; static int scsi_alloc_out_of_range = 0; /* use bounce buffer if the physical address is bad */ - if (addr & HDATA(cmd->device->host)->dma_xfer_mask) { - HDATA(cmd->device->host)->dma_bounce_len = - (cmd->SCp.this_residual + 511) & ~0x1ff; + if (addr & hdata->dma_xfer_mask) { + hdata->dma_bounce_len = (cmd->SCp.this_residual + 511) & ~0x1ff; if (!scsi_alloc_out_of_range) { - HDATA(cmd->device->host)->dma_bounce_buffer = - kmalloc(HDATA(cmd->device->host)->dma_bounce_len, - GFP_KERNEL); - HDATA(cmd->device->host)->dma_buffer_pool = - BUF_SCSI_ALLOCED; + hdata->dma_bounce_buffer = + kmalloc(hdata->dma_bounce_len, GFP_KERNEL); + hdata->dma_buffer_pool = BUF_SCSI_ALLOCED; } if (scsi_alloc_out_of_range || - !HDATA(cmd->device->host)->dma_bounce_buffer) { - HDATA(cmd->device->host)->dma_bounce_buffer = - amiga_chip_alloc(HDATA(cmd->device->host)->dma_bounce_len, + !hdata->dma_bounce_buffer) { + hdata->dma_bounce_buffer = + amiga_chip_alloc(hdata->dma_bounce_len, "GVP II SCSI Bounce Buffer"); - if (!HDATA(cmd->device->host)->dma_bounce_buffer) { - HDATA(cmd->device->host)->dma_bounce_len = 0; + if (!hdata->dma_bounce_buffer) { + hdata->dma_bounce_len = 0; return 1; } - HDATA(cmd->device->host)->dma_buffer_pool = - BUF_CHIP_ALLOCED; + hdata->dma_buffer_pool = BUF_CHIP_ALLOCED; } /* check if the address of the bounce buffer is OK */ - addr = virt_to_bus(HDATA(cmd->device->host)->dma_bounce_buffer); + addr = virt_to_bus(hdata->dma_bounce_buffer); - if (addr & HDATA(cmd->device->host)->dma_xfer_mask) { + if (addr & hdata->dma_xfer_mask) { /* fall back to Chip RAM if address out of range */ - if (HDATA(cmd->device->host)->dma_buffer_pool == - BUF_SCSI_ALLOCED) { - kfree(HDATA(cmd->device->host)->dma_bounce_buffer); + if (hdata->dma_buffer_pool == BUF_SCSI_ALLOCED) { + kfree(hdata->dma_bounce_buffer); scsi_alloc_out_of_range = 1; } else { - amiga_chip_free(HDATA(cmd->device->host)->dma_bounce_buffer); + amiga_chip_free(hdata->dma_bounce_buffer); } - HDATA(cmd->device->host)->dma_bounce_buffer = - amiga_chip_alloc(HDATA(cmd->device->host)->dma_bounce_len, + hdata->dma_bounce_buffer = + amiga_chip_alloc(hdata->dma_bounce_len, "GVP II SCSI Bounce Buffer"); - if (!HDATA(cmd->device->host)->dma_bounce_buffer) { - HDATA(cmd->device->host)->dma_bounce_len = 0; + if (!hdata->dma_bounce_buffer) { + hdata->dma_bounce_len = 0; return 1; } - addr = virt_to_bus(HDATA(cmd->device->host)->dma_bounce_buffer); - HDATA(cmd->device->host)->dma_buffer_pool = - BUF_CHIP_ALLOCED; + addr = virt_to_bus(hdata->dma_bounce_buffer); + hdata->dma_buffer_pool = BUF_CHIP_ALLOCED; } if (!dir_in) { /* copy to bounce buffer for a write */ - memcpy(HDATA(cmd->device->host)->dma_bounce_buffer, - cmd->SCp.ptr, cmd->SCp.this_residual); + memcpy(hdata->dma_bounce_buffer, cmd->SCp.ptr, + cmd->SCp.this_residual); } } @@ -121,7 +116,7 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in) if (!dir_in) cntr |= GVP11_DMAC_DIR_WRITE; - HDATA(cmd->device->host)->dma_dir = dir_in; + hdata->dma_dir = dir_in; DMA(cmd->device->host)->CNTR = cntr; /* setup DMA *physical* address */ @@ -135,7 +130,8 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in) cache_push(addr, cmd->SCp.this_residual); } - if ((bank_mask = (~HDATA(cmd->device->host)->dma_xfer_mask >> 18) & 0x01c0)) + bank_mask = (~hdata->dma_xfer_mask >> 18) & 0x01c0; + if (bank_mask) DMA(cmd->device->host)->BANK = bank_mask & (addr >> 18); /* start DMA */ @@ -148,25 +144,26 @@ 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) { + struct WD33C93_hostdata *hdata = shost_priv(instance); + /* stop DMA */ DMA(instance)->SP_DMA = 1; /* remove write bit from CONTROL bits */ DMA(instance)->CNTR = GVP11_DMAC_INT_ENABLE; /* copy from a bounce buffer, if necessary */ - if (status && HDATA(instance)->dma_bounce_buffer) { - if (HDATA(instance)->dma_dir && SCpnt) - memcpy(SCpnt->SCp.ptr, - HDATA(instance)->dma_bounce_buffer, + if (status && hdata->dma_bounce_buffer) { + if (hdata->dma_dir && SCpnt) + memcpy(SCpnt->SCp.ptr, hdata->dma_bounce_buffer, SCpnt->SCp.this_residual); - if (HDATA(instance)->dma_buffer_pool == BUF_SCSI_ALLOCED) - kfree(HDATA(instance)->dma_bounce_buffer); + if (hdata->dma_buffer_pool == BUF_SCSI_ALLOCED) + kfree(hdata->dma_bounce_buffer); else - amiga_chip_free(HDATA(instance)->dma_bounce_buffer); + amiga_chip_free(hdata->dma_bounce_buffer); - HDATA(instance)->dma_bounce_buffer = NULL; - HDATA(instance)->dma_bounce_len = 0; + hdata->dma_bounce_buffer = NULL; + hdata->dma_bounce_len = 0; } } @@ -180,6 +177,7 @@ int __init gvp11_detect(struct scsi_host_template *tpnt) unsigned int epc; struct zorro_dev *z = NULL; unsigned int default_dma_xfer_mask; + struct WD33C93_hostdata *hdata; wd33c93_regs regs; int num_gvp11 = 0; #ifdef CHECK_WD33C93 @@ -306,10 +304,11 @@ int __init gvp11_detect(struct scsi_host_template *tpnt) instance->irq = IRQ_AMIGA_PORTS; instance->unique_id = z->slotaddr; + hdata = shost_priv(instance); if (gvp11_xfer_mask) - HDATA(instance)->dma_xfer_mask = gvp11_xfer_mask; + hdata->dma_xfer_mask = gvp11_xfer_mask; else - HDATA(instance)->dma_xfer_mask = default_dma_xfer_mask; + hdata->dma_xfer_mask = default_dma_xfer_mask; DMA(instance)->secret2 = 1; DMA(instance)->secret1 = 0; @@ -327,9 +326,9 @@ int __init gvp11_detect(struct scsi_host_template *tpnt) */ 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; + hdata->no_sync = 0xff; + hdata->fast = 0; + hdata->dma_mode = CTRL_DMA; wd33c93_init(instance, regs, dma_setup, dma_stop, (epc & GVP_SCSICLKMASK) ? WD33C93_FS_8_10 : WD33C93_FS_12_15); |
