diff options
Diffstat (limited to 'drivers/scsi/aic7xxx/aic7xxx_osm.c')
| -rw-r--r-- | drivers/scsi/aic7xxx/aic7xxx_osm.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index eadfefdd8d7..debf3e2a079 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -2537,6 +2537,22 @@ static void ahc_linux_set_iu(struct scsi_target *starget, int iu) } #endif +static void ahc_linux_get_signalling(struct Scsi_Host *shost) +{ + struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata; + u8 mode = ahc_inb(ahc, SBLKCTL); + + if (mode & ENAB40) + spi_signalling(shost) = SPI_SIGNAL_LVD; + else if (mode & ENAB20) + spi_signalling(shost) = + ahc->features & AHC_HVD ? + SPI_SIGNAL_HVD : + SPI_SIGNAL_SE; + else + spi_signalling(shost) = SPI_SIGNAL_UNKNOWN; +} + static struct spi_function_template ahc_linux_transport_functions = { .set_offset = ahc_linux_set_offset, .show_offset = 1, @@ -2552,6 +2568,7 @@ static struct spi_function_template ahc_linux_transport_functions = { .set_qas = ahc_linux_set_qas, .show_qas = 1, #endif + .get_signalling = ahc_linux_get_signalling, }; |