diff options
| author | Finn Thain | 2016-10-10 00:46:53 -0400 |
|---|---|---|
| committer | Martin K. Petersen | 2016-11-08 17:29:48 -0500 |
| commit | 4a98f896bf2c66a69517fc5e10dc67288cb8da93 (patch) | |
| tree | c543e4ab8a0039eeedffaedf03cbc444a5efa775 /drivers/scsi/arm/oak.c | |
| parent | 7c60663143c29ea64f51e692f950f8619e0e4c77 (diff) | |
scsi: ncr5380: Use correct types for DMA routines
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>
Diffstat (limited to 'drivers/scsi/arm/oak.c')
| -rw-r--r-- | drivers/scsi/arm/oak.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/scsi/arm/oak.c b/drivers/scsi/arm/oak.c index d320f88c32c4..6be6666534d4 100644 --- a/drivers/scsi/arm/oak.c +++ b/drivers/scsi/arm/oak.c @@ -19,10 +19,10 @@ #define NCR5380_read(reg) readb(hostdata->io + ((reg) << 2)) #define NCR5380_write(reg, value) writeb(value, hostdata->io + ((reg) << 2)) -#define NCR5380_dma_xfer_len(instance, cmd, phase) (0) +#define NCR5380_dma_xfer_len NCR5380_dma_xfer_none #define NCR5380_dma_recv_setup oakscsi_pread #define NCR5380_dma_send_setup oakscsi_pwrite -#define NCR5380_dma_residual(instance) (0) +#define NCR5380_dma_residual NCR5380_dma_residual_none #define NCR5380_queue_command oakscsi_queue_command #define NCR5380_info oakscsi_info @@ -37,10 +37,10 @@ #define STAT ((128 + 16) << 2) #define DATA ((128 + 8) << 2) -static inline int oakscsi_pwrite(struct Scsi_Host *instance, +static inline int oakscsi_pwrite(struct NCR5380_hostdata *hostdata, unsigned char *addr, int len) { - u8 __iomem *base = priv(instance)->io; + u8 __iomem *base = hostdata->io; printk("writing %p len %d\n",addr, len); @@ -52,10 +52,11 @@ printk("writing %p len %d\n",addr, len); return 0; } -static inline int oakscsi_pread(struct Scsi_Host *instance, +static inline int oakscsi_pread(struct NCR5380_hostdata *hostdata, unsigned char *addr, int len) { - u8 __iomem *base = priv(instance)->io; + u8 __iomem *base = hostdata->io; + printk("reading %p len %d\n", addr, len); while(len > 0) { |