Commit d6b9ccbb authored by Hannes Reinecke's avatar Hannes Reinecke Committed by James Bottomley
Browse files

[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: default avatarHannes Reinecke <hare@suse.de>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent 9080063f
...@@ -2694,7 +2694,25 @@ static void ahd_linux_set_hold_mcs(struct scsi_target *starget, int hold) ...@@ -2694,7 +2694,25 @@ static void ahd_linux_set_hold_mcs(struct scsi_target *starget, int hold)
ahd_unlock(ahd, &flags); 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 = { static struct spi_function_template ahd_linux_transport_functions = {
.set_offset = ahd_linux_set_offset, .set_offset = ahd_linux_set_offset,
...@@ -2719,6 +2737,7 @@ static struct spi_function_template ahd_linux_transport_functions = { ...@@ -2719,6 +2737,7 @@ static struct spi_function_template ahd_linux_transport_functions = {
.show_pcomp_en = 1, .show_pcomp_en = 1,
.set_hold_mcs = ahd_linux_set_hold_mcs, .set_hold_mcs = ahd_linux_set_hold_mcs,
.show_hold_mcs = 1, .show_hold_mcs = 1,
.get_signalling = ahd_linux_get_signalling,
}; };
static int __init static int __init
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment