4a98f896bf
Apply prototypes to get consistent function signatures for the DMA functions implemented in the board-specific drivers. To avoid using macros to alter actual parameters, some of those functions are reworked slightly. This is a step toward the goal of passing the board-specific routines to the core driver using an ops struct (as in a platform driver or library module). This also helps fix some inconsistent types: where the core driver uses ints (cmd->SCp.this_residual and hostdata->dma_len) for keeping track of transfers, certain board-specific routines used unsigned long. While we are fixing these function signatures, pass the hostdata pointer to DMA routines instead of a Scsi_Host pointer, for shorter and faster code. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Reviewed-by: Hannes Reinecke <hare@suse.com> Tested-by: Ondrej Zary <linux@rainbow-software.org> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Acked-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
/*
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* Generic Generic NCR5380 driver defines
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*
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* Copyright 1993, Drew Eckhardt
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* Visionary Computing
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* (Unix and Linux consulting and custom programming)
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* drew@colorado.edu
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* +1 (303) 440-4894
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*
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* NCR53C400 extensions (c) 1994,1995,1996, Kevin Lentin
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* K.Lentin@cs.monash.edu.au
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*/
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#ifndef GENERIC_NCR5380_H
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#define GENERIC_NCR5380_H
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#define DRV_MODULE_NAME "g_NCR5380"
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#define NCR5380_read(reg) \
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ioread8(hostdata->io + hostdata->offset + (reg))
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#define NCR5380_write(reg, value) \
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iowrite8(value, hostdata->io + hostdata->offset + (reg))
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#define NCR5380_implementation_fields \
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int offset; \
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int c400_ctl_status; \
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int c400_blk_cnt; \
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int c400_host_buf; \
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int io_width;
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#define NCR53C400_mem_base 0x3880
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#define NCR53C400_host_buffer 0x3900
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#define NCR53C400_region_size 0x3a00
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#define NCR5380_dma_xfer_len generic_NCR5380_dma_xfer_len
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#define NCR5380_dma_recv_setup generic_NCR5380_pread
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#define NCR5380_dma_send_setup generic_NCR5380_pwrite
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#define NCR5380_dma_residual NCR5380_dma_residual_none
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#define NCR5380_intr generic_NCR5380_intr
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#define NCR5380_queue_command generic_NCR5380_queue_command
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#define NCR5380_abort generic_NCR5380_abort
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#define NCR5380_bus_reset generic_NCR5380_bus_reset
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#define NCR5380_info generic_NCR5380_info
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#define NCR5380_io_delay(x) udelay(x)
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#define BOARD_NCR5380 0
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#define BOARD_NCR53C400 1
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#define BOARD_NCR53C400A 2
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#define BOARD_DTC3181E 3
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#define BOARD_HP_C2502 4
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#endif /* GENERIC_NCR5380_H */
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