diff options
Diffstat (limited to 'drivers/staging/vme/bridges/vme_ca91cx42.c')
| -rw-r--r-- | drivers/staging/vme/bridges/vme_ca91cx42.c | 46 |
1 files changed, 29 insertions, 17 deletions
diff --git a/drivers/staging/vme/bridges/vme_ca91cx42.c b/drivers/staging/vme/bridges/vme_ca91cx42.c index 1cf3e91db59d..470479856054 100644 --- a/drivers/staging/vme/bridges/vme_ca91cx42.c +++ b/drivers/staging/vme/bridges/vme_ca91cx42.c @@ -38,21 +38,26 @@ static int ca91cx42_probe(struct pci_dev *, const struct pci_device_id *); static void ca91cx42_remove(struct pci_dev *); static void __exit ca91cx42_exit(void); -struct vme_bridge *ca91cx42_bridge; -wait_queue_head_t dma_queue; -wait_queue_head_t iack_queue; -wait_queue_head_t lm_queue; -wait_queue_head_t mbox_queue; - -void (*lm_callback[4])(int); /* Called in interrupt handler, be careful! */ -void *crcsr_kernel; -dma_addr_t crcsr_bus; - -struct mutex vme_rmw; /* Only one RMW cycle at a time */ -struct mutex vme_int; /* - * Only one VME interrupt can be - * generated at a time, provide locking - */ +/* Module parameters */ +static int geoid; + +static struct vme_bridge *ca91cx42_bridge; +static wait_queue_head_t dma_queue; +static wait_queue_head_t iack_queue; +#if 0 +static wait_queue_head_t lm_queue; +#endif +static wait_queue_head_t mbox_queue; + +static void (*lm_callback[4])(int); /* Called in interrupt handler */ +static void *crcsr_kernel; +static dma_addr_t crcsr_bus; + +static struct mutex vme_rmw; /* Only one RMW cycle at a time */ +static struct mutex vme_int; /* + * Only one VME interrupt can be + * generated at a time, provide locking + */ static char driver_name[] = "vme_ca91cx42"; @@ -881,8 +886,12 @@ int ca91cx42_slot_get(void) { u32 slot = 0; - slot = ioread32(ca91cx42_bridge->base + VCSR_BS); - slot = ((slot & CA91CX42_VCSR_BS_SLOT_M) >> 27); + if (!geoid) { + slot = ioread32(ca91cx42_bridge->base + VCSR_BS); + slot = ((slot & CA91CX42_VCSR_BS_SLOT_M) >> 27); + } else + slot = geoid; + return (int)slot; } @@ -1299,6 +1308,9 @@ static void __exit ca91cx42_exit(void) pci_unregister_driver(&ca91cx42_driver); } +MODULE_PARM_DESC(geoid, "Override geographical addressing"); +module_param(geoid, int, 0); + MODULE_DESCRIPTION("VME driver for the Tundra Universe II VME bridge"); MODULE_LICENSE("GPL"); |