diff options
| author | Hannes Reinecke <hare@suse.de> | 2006-10-23 15:26:37 +0200 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-10-25 15:14:50 -0700 |
| commit | d6b9ccbbeb625674891f797119f06512d27fc905 (patch) | |
| tree | 61452231eab8d60f30df1a1ae02045eb43a44378 /drivers/scsi/aic7xxx/aic79xx_osm.c | |
| parent | 9080063f523b09af63234a21816c825133d48c44 (diff) | |
[SCSI] aic79xx: Print out signalling
This is a cross-port of a similar patch for aic7xxx;
only it's a bit simpler here as we don't support HVD
and all controller actually implement this register.
I hope.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/aic7xxx/aic79xx_osm.c')
| -rw-r--r-- | drivers/scsi/aic7xxx/aic79xx_osm.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index e7a32f8e1a5..9bfcca5ede0 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -2694,7 +2694,25 @@ static void ahd_linux_set_hold_mcs(struct scsi_target *starget, int hold) ahd_unlock(ahd, &flags); } +static void ahd_linux_get_signalling(struct Scsi_Host *shost) +{ + struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata; + unsigned long flags; + u8 mode; + ahd_lock(ahd, &flags); + ahd_pause(ahd); + mode = ahd_inb(ahd, SBLKCTL); + ahd_unpause(ahd); + ahd_unlock(ahd, &flags); + + if (mode & ENAB40) + spi_signalling(shost) = SPI_SIGNAL_LVD; + else if (mode & ENAB20) + spi_signalling(shost) = SPI_SIGNAL_SE; + else + spi_signalling(shost) = SPI_SIGNAL_UNKNOWN; +} static struct spi_function_template ahd_linux_transport_functions = { .set_offset = ahd_linux_set_offset, @@ -2719,6 +2737,7 @@ static struct spi_function_template ahd_linux_transport_functions = { .show_pcomp_en = 1, .set_hold_mcs = ahd_linux_set_hold_mcs, .show_hold_mcs = 1, + .get_signalling = ahd_linux_get_signalling, }; static int __init |