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path: root/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c
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Diffstat (limited to 'drivers/scsi/aic7xxx/aic7xxx_osm_pci.c')
-rw-r--r--drivers/scsi/aic7xxx/aic7xxx_osm_pci.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c
index 3d3eaef..bd422a8 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c
@@ -269,6 +269,57 @@ ahc_linux_pci_dev_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
return (0);
}
+/******************************* PCI Routines *********************************/
+uint32_t
+ahc_pci_read_config(ahc_dev_softc_t pci, int reg, int width)
+{
+ switch (width) {
+ case 1:
+ {
+ uint8_t retval;
+
+ pci_read_config_byte(pci, reg, &retval);
+ return (retval);
+ }
+ case 2:
+ {
+ uint16_t retval;
+ pci_read_config_word(pci, reg, &retval);
+ return (retval);
+ }
+ case 4:
+ {
+ uint32_t retval;
+ pci_read_config_dword(pci, reg, &retval);
+ return (retval);
+ }
+ default:
+ panic("ahc_pci_read_config: Read size too big");
+ /* NOTREACHED */
+ return (0);
+ }
+}
+
+void
+ahc_pci_write_config(ahc_dev_softc_t pci, int reg, uint32_t value, int width)
+{
+ switch (width) {
+ case 1:
+ pci_write_config_byte(pci, reg, value);
+ break;
+ case 2:
+ pci_write_config_word(pci, reg, value);
+ break;
+ case 4:
+ pci_write_config_dword(pci, reg, value);
+ break;
+ default:
+ panic("ahc_pci_write_config: Write size too big");
+ /* NOTREACHED */
+ }
+}
+
+
static struct pci_driver aic7xxx_pci_driver = {
.name = "aic7xxx",
.probe = ahc_linux_pci_dev_probe,