diff options
Diffstat (limited to 'sys/kern/subr_bus.c')
| -rw-r--r-- | sys/kern/subr_bus.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/sys/kern/subr_bus.c b/sys/kern/subr_bus.c index a865586..c947735 100644 --- a/sys/kern/subr_bus.c +++ b/sys/kern/subr_bus.c @@ -3646,6 +3646,23 @@ bus_generic_teardown_intr(device_t dev, device_t child, struct resource *irq, } /** + * @brief Helper function for implementing BUS_ADJUST_RESOURCE(). + * + * This simple implementation of BUS_ADJUST_RESOURCE() simply calls the + * BUS_ADJUST_RESOURCE() method of the parent of @p dev. + */ +int +bus_generic_adjust_resource(device_t dev, device_t child, int type, + struct resource *r, u_long start, u_long end) +{ + /* Propagate up the bus hierarchy until someone handles it. */ + if (dev->parent) + return (BUS_ADJUST_RESOURCE(dev->parent, child, type, r, start, + end)); + return (EINVAL); +} + +/** * @brief Helper function for implementing BUS_ALLOC_RESOURCE(). * * This simple implementation of BUS_ALLOC_RESOURCE() simply calls the @@ -3976,6 +3993,21 @@ bus_alloc_resource(device_t dev, int type, int *rid, u_long start, u_long end, } /** + * @brief Wrapper function for BUS_ADJUST_RESOURCE(). + * + * This function simply calls the BUS_ADJUST_RESOURCE() method of the + * parent of @p dev. + */ +int +bus_adjust_resource(device_t dev, int type, struct resource *r, u_long start, + u_long end) +{ + if (dev->parent == NULL) + return (EINVAL); + return (BUS_ADJUST_RESOURCE(dev->parent, dev, type, r, start, end)); +} + +/** * @brief Wrapper function for BUS_ACTIVATE_RESOURCE(). * * This function simply calls the BUS_ACTIVATE_RESOURCE() method of the |
