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

drivers/scsi/aic7xxx/aic79xx_osm.c

+19 −0
Original line number Diff line number Diff line
@@ -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