diff options
author | imp <imp@FreeBSD.org> | 1998-10-10 00:44:12 +0000 |
---|---|---|
committer | imp <imp@FreeBSD.org> | 1998-10-10 00:44:12 +0000 |
commit | 13f2ddfc616e06287947cc9ce1552192ec1cf779 (patch) | |
tree | 35f0ad87905fdcd19e8e7809c680b3a7ad67977f /sys/isa/bt_isa.c | |
parent | 3e75936c6c42230ab8fefae122340215c88acb84 (diff) | |
download | FreeBSD-src-13f2ddfc616e06287947cc9ce1552192ec1cf779.zip FreeBSD-src-13f2ddfc616e06287947cc9ce1552192ec1cf779.tar.gz |
Fix conficts in probe:
o For bt and aha only probe the one I/O range if a specific I/O is specified
in the config file.
o Don't even try to probe I/O ranges that have been seen already.
o If we conflict with an IRQ or DRQ, then fail the probe.
Requested by: bde, gibbs
Approved by: jkh
Diffstat (limited to 'sys/isa/bt_isa.c')
-rw-r--r-- | sys/isa/bt_isa.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/sys/isa/bt_isa.c b/sys/isa/bt_isa.c index b74752a..5473bf2 100644 --- a/sys/isa/bt_isa.c +++ b/sys/isa/bt_isa.c @@ -26,7 +26,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $Id: bt_isa.c,v 1.1 1998/09/15 07:32:54 gibbs Exp $ + * $Id: bt_isa.c,v 1.2 1998/09/24 10:43:42 bde Exp $ */ #include <sys/param.h> @@ -102,6 +102,7 @@ bt_isa_probe: Failing probe.\n", : bt_isa_ports[max_port_index].addr); return 0; } + max_port_index = port_index; } /* Attempt to find an adapter */ @@ -119,6 +120,13 @@ bt_isa_probe: Failing probe.\n", if (bt_check_probed_iop(ioport) != 0) continue; + /* + * Make sure that we do not conflict with another device's + * I/O address. + */ + if (haveseen_isadev(dev, CC_IOADDR)) + continue; + /* Allocate a softc for use during probing */ bt = bt_alloc(dev->id_unit, I386_BUS_SPACE_IO, ioport); @@ -173,6 +181,25 @@ bt_isa_probe: Failing probe.\n", dev->id_iobase = bt_isa_ports[port_index].addr; dev->id_irq = (config_data.irq << 9); dev->id_intr = bt_isa_intr; + + /* + * OK, check to make sure that we're not stepping on + * someone else's IRQ or DRQ + */ + if (haveseen_isadev(dev, CC_DRQ)) { + printf("bt_isa_probe: Bt card at I/O 0x%x's drq %d " + "conflicts, ignoring card.\n", dev->id_iobase, + dev->id_drq); + bt_free(bt); + return 0; + } + if (haveseen_isadev(dev, CC_IRQ)) { + printf("bt_isa_probe: Bt card at I/O 0x%x's irq %d " + "conflicts, ignoring card.\n", dev->id_iobase, + config_data.irq + 9); + bt_free(bt); + return 0; + } bt_unit++; return (BT_NREGS); } |