| 39,6 → 39,7 |
|---|
| #include <arch/memstr.h> |
| #include <func.h> |
| #include <panic.h> |
| #include <debug.h> |
| #include <macros.h> |
| |
| bool ofw_ebus_apply_ranges(ofw_tree_node_t *node, ofw_ebus_reg_t *reg, uintptr_t *pa) |
| 73,5 → 74,51 |
|---|
| return false; |
| } |
| |
| bool ofw_ebus_map_interrupts(ofw_tree_node_t *node, ofw_ebus_reg_t *reg, uint32_t interrupt, int *ino) |
| { |
| ofw_tree_property_t *prop; |
| ofw_tree_node_t *controller; |
| |
| prop = ofw_tree_getprop(node, "interrupt-map"); |
| if (!prop || !prop->value) |
| return false; |
| |
| ofw_ebus_intr_map_t *intr_map = prop->value; |
| count_t count = prop->size / sizeof(ofw_ebus_intr_map_t); |
| |
| ASSERT(count); |
| |
| prop = ofw_tree_getprop(node, "interrupt-map-mask"); |
| if (!prop || !prop->value) |
| return false; |
| |
| ofw_ebus_intr_mask_t *intr_mask = prop->value; |
| |
| ASSERT(prop->size == sizeof(ofw_ebus_intr_mask_t)); |
| |
| uint32_t space = reg->space & intr_mask->space_mask; |
| uint32_t addr = reg->addr & intr_mask->addr_mask; |
| uint32_t intr = interrupt & intr_mask->intr_mask; |
| |
| int i; |
| for (i = 0; i < count; i++) { |
| if ((intr_map[i].space == space) && (intr_map[i].addr == addr) |
| && (intr_map[i].intr == intr)) |
| goto found; |
| } |
| return false; |
| |
| found: |
| /* |
| * We found the device that functions as an interrupt controller |
| * for the interrupt. We also found mapping from interrupt to INO. |
| */ |
| |
| controller = ofw_tree_find_node_by_handle(ofw_tree_lookup("/"), intr_map[i].controller_handle); |
| |
| *ino = intr_map[i].controller_ino; |
| return true; |
| } |
| |
| /** @} |
| */ |