Changeset 33b1903 in mainline for kernel/genarch/src/ofw/pci.c

Timestamp:

2006-10-07T11:24:19Z (18 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

8d4a577

Parents:

e2cc9a0

Message:

Separate mapping of EBUS interrupts into two parts: EBUS and PCI.

File:

• kernel/genarch/src/ofw/pci.c (modified) (3 diffs)

kernel/genarch/src/ofw/pci.c

@@ -37 +37 @@
 
 #include <genarch/ofw/ofw_tree.h>
+#include <arch/drivers/pci.h>
+#include <arch/trap/interrupt.h>
 #include <arch/memstr.h>
 #include <func.h>
@@ -45 +47 @@
 #define PCI_ABS_MASK            0x80000000      
 #define PCI_REG_MASK            0x000000ff
+
+#define PCI_IGN                 0x1f
 
 bool ofw_pci_apply_ranges(ofw_tree_node_t *node, ofw_pci_reg_t *reg, uintptr_t *pa)
@@ -111 +115 @@
 }
 
+/** Map PCI interrupt.
+ *
+ * So far, we only know how to map interrupts of non-PCI devices connected
+ * to a PCI bridge.
+ */
+bool ofw_pci_map_interrupt(ofw_tree_node_t *node, ofw_pci_reg_t *reg, int ino, int *inr)
+{
+        pci_t *pci = node->device;
+        if (!pci) {
+                pci = pci_init(node);
+                if (!pci)
+                        return false;
+                node->device = pci;
+        }
+
+        pci_enable_interrupt(pci, ino);
+
+        *inr = (PCI_IGN << IGN_SHIFT) | ino;
+
+        return true;
+}
+
 /** @}
  */