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authorMatthew Wilcox <matthew@wil.cx>2006-02-07 07:54:46 -0700
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2006-02-27 22:55:09 -0600
commit6ea3c0b2dac0d6a857d6bc010e544f4c901fff78 (patch)
tree0650d6e8b5be747eb192e558dd90e875ca7a13fb /drivers/scsi/53c700.c
parentb0dc1db15225d5801bf3105966c9ce12c5142013 (diff)
downloadop-kernel-dev-6ea3c0b2dac0d6a857d6bc010e544f4c901fff78.zip
op-kernel-dev-6ea3c0b2dac0d6a857d6bc010e544f4c901fff78.tar.gz
[SCSI] Add spi_populate_*_msg functions
Introduce new helpers: - spi_populate_width_msg() - spi_populate_sync_msg() - spi_populate_ppr_msg() and use them in drivers which already enable the SPI transport. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/53c700.c')
-rw-r--r--drivers/scsi/53c700.c18
1 files changed, 4 insertions, 14 deletions
diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index 4ce7438..6a0f950 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -238,14 +238,6 @@ static char *NCR_700_SBCL_to_phase[] = {
"MSG IN",
};
-static __u8 NCR_700_SDTR_msg[] = {
- 0x01, /* Extended message */
- 0x03, /* Extended message Length */
- 0x01, /* SDTR Extended message */
- NCR_700_MIN_PERIOD,
- NCR_700_MAX_OFFSET
-};
-
/* This translates the SDTR message offset and period to a value
* which can be loaded into the SXFER_REG.
*
@@ -266,7 +258,7 @@ NCR_700_offset_period_to_sxfer(struct NCR_700_Host_Parameters *hostdata,
return 0;
if(period < hostdata->min_period) {
- printk(KERN_WARNING "53c700: Period %dns is less than this chip's minimum, setting to %d\n", period*4, NCR_700_SDTR_msg[3]*4);
+ printk(KERN_WARNING "53c700: Period %dns is less than this chip's minimum, setting to %d\n", period*4, NCR_700_MIN_PERIOD*4);
period = hostdata->min_period;
}
XFERP = (period*4 * hostdata->sync_clock)/1000 - 4;
@@ -1434,11 +1426,9 @@ NCR_700_start_command(struct scsi_cmnd *SCp)
if(hostdata->fast &&
NCR_700_is_flag_clear(SCp->device, NCR_700_DEV_NEGOTIATED_SYNC)) {
- memcpy(&hostdata->msgout[count], NCR_700_SDTR_msg,
- sizeof(NCR_700_SDTR_msg));
- hostdata->msgout[count+3] = spi_period(SCp->device->sdev_target);
- hostdata->msgout[count+4] = spi_offset(SCp->device->sdev_target);
- count += sizeof(NCR_700_SDTR_msg);
+ count += spi_populate_sync_msg(&hostdata->msgout[count],
+ spi_period(SCp->device->sdev_target),
+ spi_offset(SCp->device->sdev_target));
NCR_700_set_flag(SCp->device, NCR_700_DEV_BEGIN_SYNC_NEGOTIATION);
}
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