diff options
Diffstat (limited to 'drivers/scsi/NCR5380.h')
| -rw-r--r-- | drivers/scsi/NCR5380.h | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/drivers/scsi/NCR5380.h b/drivers/scsi/NCR5380.h index a79288682a74..0b03ba25bd66 100644 --- a/drivers/scsi/NCR5380.h +++ b/drivers/scsi/NCR5380.h @@ -239,9 +239,7 @@ struct NCR5380_hostdata { struct Scsi_Host *host; /* Host backpointer */ unsigned char id_mask, id_higher_mask; /* 1 << id, all bits greater */ unsigned char busy[8]; /* index = target, bit = lun */ -#if defined(REAL_DMA) || defined(REAL_DMA_POLL) int dma_len; /* requested length of DMA */ -#endif unsigned char last_message; /* last message OUT */ struct scsi_cmnd *connected; /* currently connected cmnd */ struct scsi_cmnd *selecting; /* cmnd to be connected */ @@ -319,118 +317,8 @@ static void NCR5380_main(struct work_struct *work); static const char *NCR5380_info(struct Scsi_Host *instance); static void NCR5380_reselect(struct Scsi_Host *instance); static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *, struct scsi_cmnd *); -#if defined(PSEUDO_DMA) || defined(REAL_DMA) || defined(REAL_DMA_POLL) static int NCR5380_transfer_dma(struct Scsi_Host *instance, unsigned char *phase, int *count, unsigned char **data); -#endif static int NCR5380_transfer_pio(struct Scsi_Host *instance, unsigned char *phase, int *count, unsigned char **data); -#if (defined(REAL_DMA) || defined(REAL_DMA_POLL)) - -#if defined(i386) || defined(__alpha__) - -/** - * NCR5380_pc_dma_setup - setup ISA DMA - * @instance: adapter to set up - * @ptr: block to transfer (virtual address) - * @count: number of bytes to transfer - * @mode: DMA controller mode to use - * - * Program the DMA controller ready to perform an ISA DMA transfer - * on this chip. - * - * Locks: takes and releases the ISA DMA lock. - */ - -static __inline__ int NCR5380_pc_dma_setup(struct Scsi_Host *instance, unsigned char *ptr, unsigned int count, unsigned char mode) -{ - unsigned limit; - unsigned long bus_addr = virt_to_bus(ptr); - unsigned long flags; - - if (instance->dma_channel <= 3) { - if (count > 65536) - count = 65536; - limit = 65536 - (bus_addr & 0xFFFF); - } else { - if (count > 65536 * 2) - count = 65536 * 2; - limit = 65536 * 2 - (bus_addr & 0x1FFFF); - } - - if (count > limit) - count = limit; - - if ((count & 1) || (bus_addr & 1)) - panic("scsi%d : attempted unaligned DMA transfer\n", instance->host_no); - - flags=claim_dma_lock(); - disable_dma(instance->dma_channel); - clear_dma_ff(instance->dma_channel); - set_dma_addr(instance->dma_channel, bus_addr); - set_dma_count(instance->dma_channel, count); - set_dma_mode(instance->dma_channel, mode); - enable_dma(instance->dma_channel); - release_dma_lock(flags); - - return count; -} - -/** - * NCR5380_pc_dma_write_setup - setup ISA DMA write - * @instance: adapter to set up - * @ptr: block to transfer (virtual address) - * @count: number of bytes to transfer - * - * Program the DMA controller ready to perform an ISA DMA write to the - * SCSI controller. - * - * Locks: called routines take and release the ISA DMA lock. - */ - -static __inline__ int NCR5380_pc_dma_write_setup(struct Scsi_Host *instance, unsigned char *src, unsigned int count) -{ - return NCR5380_pc_dma_setup(instance, src, count, DMA_MODE_WRITE); -} - -/** - * NCR5380_pc_dma_read_setup - setup ISA DMA read - * @instance: adapter to set up - * @ptr: block to transfer (virtual address) - * @count: number of bytes to transfer - * - * Program the DMA controller ready to perform an ISA DMA read from the - * SCSI controller. - * - * Locks: called routines take and release the ISA DMA lock. - */ - -static __inline__ int NCR5380_pc_dma_read_setup(struct Scsi_Host *instance, unsigned char *src, unsigned int count) -{ - return NCR5380_pc_dma_setup(instance, src, count, DMA_MODE_READ); -} - -/** - * NCR5380_pc_dma_residual - return bytes left - * @instance: adapter - * - * Reports the number of bytes left over after the DMA was terminated. - * - * Locks: takes and releases the ISA DMA lock. - */ - -static __inline__ int NCR5380_pc_dma_residual(struct Scsi_Host *instance) -{ - unsigned long flags; - int tmp; - - flags = claim_dma_lock(); - clear_dma_ff(instance->dma_channel); - tmp = get_dma_residue(instance->dma_channel); - release_dma_lock(flags); - - return tmp; -} -#endif /* defined(i386) || defined(__alpha__) */ -#endif /* defined(REAL_DMA) */ #endif /* __KERNEL__ */ #endif /* NCR5380_H */ |