- Major update of the dynamic device tree so it can handle

  * subtractive resources
  * merging with the static device tree
  * more device types than just pci
- The piece to watch out for is the new enable_resources method that was needed in all of the drivers


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1096 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 85 insertions, 0 deletions

diff --git a/src/devices/chip.c b/src/devices/chip.c
index 0074f2bede..b7eace38f0 100644
--- a/src/devices/chip.c
+++ b/src/devices/chip.c
@@ -5,7 +5,9 @@
  * path, etc. 
  */
 
+#include <console/console.h>
 #include <device/chip.h>
+#include <device/pci.h>
 
 void
 chip_configure(struct chip *root, enum chip_pass pass)
@@ -22,3 +24,86 @@ chip_configure(struct chip *root, enum chip_pass pass)
 			chip_configure(c->children, pass);
 	}
 }
+
+/** Convert a static struct chip structure to a set of dynamic device structures.
+ * @param chip Static chip structure to start with.
+ */
+
+void chip_enumerate(struct chip *chip)
+{
+	struct chip *child;
+	device_t dev;
+	int link;
+	int i;
+	dev = 0;
+	link = 0;
+#if 1
+	if (chip->control && chip->control->name) {
+		printk_debug("Enumerating: %s\n", chip->control->name);
+	}
+#endif
+	for(i = 0; i < MAX_CHIP_PATHS; i++) {
+		int identical_paths;
+		identical_paths = 
+			(i > 0) &&
+			(path_eq(&chip->path[i - 1].path, &chip->path[i].path)) &&
+			(chip->path[i - 1].channel == chip->path[i].channel);
+		if (!identical_paths) {
+			link = 0;
+			dev = 0;
+			switch(chip->path[i].path.type) {
+			case DEVICE_PATH_NONE:
+				break;
+			default:
+				dev = alloc_dev(chip->bus, &chip->path[i].path);
+				break;
+			}
+		}
+		else {
+			link += 1;
+		}
+		if (dev) {
+			printk_spew("path %s %s\n", dev_path(dev), identical_paths?"identical":"");
+			dev->enable = chip->path[i].enable;
+			dev->links = link + 1;
+			for(child = chip->children; child; child = child->next) {
+				if (!child->bus &&
+					child->path[0].channel == i) {
+					child->bus = &dev->link[link];
+				}
+			}
+		}
+		if (dev && !chip->dev) {
+			chip->dev = dev;
+		}
+	}
+	for(child = chip->children; child; child = child->next) {
+		if (!child->bus) {
+			child->bus = &chip->dev->link[0];
+		}
+	}
+}
+
+static void enumerate_static_device_chain(struct chip *root)
+{
+	struct chip *chip;
+	for(chip = root; chip; chip = chip->next) {
+		void (*enumerate)(struct chip *chip);
+		enumerate = chip_enumerate;
+		if (chip->control && chip->control->enumerate) {
+			enumerate = chip->control->enumerate;
+		}
+		enumerate(chip);
+	}
+
+	for(chip = root; chip; chip = chip->next) {
+		if (chip->children) {
+			enumerate_static_device_chain(chip->children);
+		}
+	}
+}
+
+void enumerate_static_devices(void)
+{
+	enumerate_static_device_chain(&static_root);
+}