[S] Change in coreboot[main]: sconfig: Provide simple constants for aliased devices

[Nico Huber (Code Review)]

Attention is currently required from: Martin L Roth.

Nico Huber has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/82764?usp=email )

Change subject: sconfig: Provide simple constants for aliased devices
......................................................................

sconfig: Provide simple constants for aliased devices

Expose aliased PCI and PNP devices as `pci_/pnp_devfn_t` constants
in <static_devices.h>. They will be named `_sdev_<alias>` to have
a underscore prefix for consistency and to not collide with the
`struct device` objects (with `_dev_` prefix).

Change-Id: I2d1cfe12b1e7309f8235c84dd220bd090ebfe1b5
Signed-off-by: Nico Huber 
---
M util/sconfig/main.c
1 file changed, 10 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/64/82764/1

diff --git a/util/sconfig/main.c b/util/sconfig/main.c
index 04f78a4..741859f 100644
--- a/util/sconfig/main.c
+++ b/util/sconfig/main.c
@@ -1288,6 +1288,10 @@

/* Only devices on root bus here. */
    if (ptr->bustype == PCI && ptr->parent->dev->bustype == DOMAIN) {
+		if (ptr->alias) {
+			fprintf(head, "static const pci_devfn_t _sdev_%s = PCI_DEV(%d, %d, %d);\n",
+				ptr->alias, ptr->parent->dev->path_a, ptr->path_a, ptr->path_b);
+		}
    	fprintf(head, "extern DEVTREE_CONST struct device *const __pci_%d_%02x_%d;\n",
    		ptr->parent->dev->path_a, ptr->path_a, ptr->path_b);
    	fprintf(fil, "DEVTREE_CONST struct device *const __pci_%d_%02x_%d = &%s;\n",
@@ -1303,6 +1307,10 @@
    }

if (ptr->bustype == PNP) {
+		if (ptr->alias) {
+			fprintf(head, "static const pnp_devfn_t _sdev_%s = PNP_DEV(0x%02x, 0x%04x);\n",
+				ptr->alias, ptr->path_a, ptr->path_b);
+		}
    	fprintf(head, "extern DEVTREE_CONST struct device *const __pnp_%04x_%02x;\n",
    		ptr->path_a, ptr->path_b);
    	fprintf(fil, "DEVTREE_CONST struct device *const __pnp_%04x_%02x = &%s;\n",
@@ -1917,6 +1925,8 @@
 {
    fprintf(dev, "#ifndef __STATIC_DEVICES_H\n");
    fprintf(dev, "#define __STATIC_DEVICES_H\n\n");
+	fprintf(dev, "#include <device/pci_type.h>\n");
+	fprintf(dev, "#include <device/pnp_type.h>\n");
    fprintf(dev, "#include <device/device.h>\n\n");
    fprintf(dev, "/* expose_device_names */\n");
    walk_device_tree(gen, dev, &base_root_dev, expose_device_names);