diff options
| author | gibbs <gibbs@FreeBSD.org> | 1996-05-21 18:32:23 +0000 |
|---|---|---|
| committer | gibbs <gibbs@FreeBSD.org> | 1996-05-21 18:32:23 +0000 |
| commit | 142e4effbe9ff909cc9cd894c64d9530cf37dc55 (patch) | |
| tree | 28613edb9a508474a4198c91e770398d801cfe1a /sys/dev/aic7xxx | |
| parent | bbabd3ea4b33f65a20a1387c096175a018526a50 (diff) | |
| download | FreeBSD-src-142e4effbe9ff909cc9cd894c64d9530cf37dc55.zip FreeBSD-src-142e4effbe9ff909cc9cd894c64d9530cf37dc55.tar.gz | |
Enable/Disable Ultra mode on a per target basis. This allows the driver
to use the full range of settings from 3.6-20MHz on any target.
Diffstat (limited to 'sys/dev/aic7xxx')
| -rw-r--r-- | sys/dev/aic7xxx/aic7xxx.seq | 20 | ||||
| -rw-r--r-- | sys/dev/aic7xxx/aic7xxx_reg.h | 4 |
2 files changed, 21 insertions, 3 deletions
diff --git a/sys/dev/aic7xxx/aic7xxx.seq b/sys/dev/aic7xxx/aic7xxx.seq index 5a92ca2..4b0c96f 100644 --- a/sys/dev/aic7xxx/aic7xxx.seq +++ b/sys/dev/aic7xxx/aic7xxx.seq @@ -39,7 +39,7 @@ * *-M************************************************************************/ -VERSION AIC7XXX_SEQ_VER "$Id: aic7xxx.seq,v 1.33 1996/04/20 21:20:29 gibbs Exp $" +VERSION AIC7XXX_SEQ_VER "$Id: aic7xxx.seq,v 1.34 1996/05/10 16:11:01 gibbs Exp $" #include "../../dev/aic7xxx/aic7xxx_reg.h" @@ -253,13 +253,28 @@ select2: call ndx_dtr mov SCSIRATE,SINDIR +/* + * Initialize Ultra mode setting. ndx_dtr has left our target mask + * in A. + */ + and SINDEX,0xdf,SXFRCTL0 /* default to Ultra disabled */ + test SCSIID, 0x80 jnz ultra_b /* Target ID > 7 */ + test SBLKCTL, SELBUSB jnz ultra_b /* Second channel device */ + test ULTRA_ENB,A jz set_sxfrctl0 + or SINDEX, ULTRAEN jmp set_sxfrctl0 +ultra_b: + test ULTRA_ENB_B,A jz set_sxfrctl0 + or SINDEX, ULTRAEN + +set_sxfrctl0: + mov SXFRCTL0,SINDEX + mvi SCSISEQ,ENAUTOATNP /* * ATN on parity errors * for "in" phases */ mvi CLRSINT1,CLRBUSFREE mvi CLRSINT0,0x60 /* CLRSELDI|CLRSELDO */ - /* * Main loop for information transfer phases. If BSY is false, then * we have a bus free condition, expected or not. Otherwise, wait @@ -283,6 +298,7 @@ ITloop: cmp A,P_MESGIN je p_mesgin mvi INTSTAT,BAD_PHASE /* unknown phase - signal driver */ + jmp ITloop /* Try reading the bus again. */ p_dataout: mvi DMAPARAMS,0x7d /* diff --git a/sys/dev/aic7xxx/aic7xxx_reg.h b/sys/dev/aic7xxx/aic7xxx_reg.h index 4354f6f..5226dbb 100644 --- a/sys/dev/aic7xxx/aic7xxx_reg.h +++ b/sys/dev/aic7xxx/aic7xxx_reg.h @@ -28,7 +28,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $Id: aic7xxx_reg.h,v 1.9 1996/05/10 16:11:03 gibbs Exp $ + * $Id: aic7xxx_reg.h,v 1.10 1996/05/10 16:28:00 gibbs Exp $ */ /* @@ -739,6 +739,8 @@ #define SAVED_LINKPTR 0x050 #define SAVED_SCBPTR 0x051 +#define ULTRA_ENB 0x052 +#define ULTRA_ENB_B 0x053 #define SCSICONF 0x05a #define RESET_SCSI 0x40 |
