Attachment 11152 Details for Bug 22078 – file.diff

[patch] file.diff

file.diff (text/plain), 2.51 KB, created by nms on 2000-10-18 12:10:01 UTC

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Creator: nms

Created: 2000-10-18 12:10:01 UTC

Size: 2.51 KB

patch

obsolete

>--- src/sys/isa/isa_common.c.orig	Tue Oct 10 13:49:04 2000
>+++ src/sys/isa/isa_common.c	Thu Oct 12 18:24:16 2000
>@@ -1047,3 +1047,95 @@
> DRIVER_MODULE(isa, nexus, isa_driver, isa_devclass, 0, 0);
> #endif
> 
>+/*
>+ * Pseudo driver to take care of holes in ISA iomem occupied
>+ * by option rom(s)
>+ */
>+
>+#define	ORM_ID	0x00004d3e
>+
>+static struct isa_pnp_id orm_ids[] = {
>+	{ ORM_ID,	NULL },		/* ORM0000 */
>+	{ 0,		NULL },
>+};
>+
>+static int
>+orm_probe(device_t dev) {
>+	return ISA_PNP_PROBE(device_get_parent(dev), dev, orm_ids);
>+}
>+
>+static int
>+orm_attach(device_t dev) {
>+	return 0;
>+}
>+
>+#define	IOMEM_START	0x0a0000
>+#define	IOMEM_STEP	0x000800
>+#define	IOMEM_END	0x100000
>+
>+static void
>+orm_identify(driver_t* driver, device_t parent) {
>+	device_t	child;
>+	u_int32_t	chunk;
>+	int		rnum = 0;
>+
>+	child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "orm", -1);
>+	device_set_driver(child, driver);
>+	device_set_desc(child, "Option ROM(s)");
>+	isa_set_logicalid(child, ORM_ID);
>+	isa_set_vendorid(child, ORM_ID);
>+	for (chunk = IOMEM_START; chunk < IOMEM_END; chunk += IOMEM_STEP) {
>+		struct resource*	res;
>+		int			rid;
>+		bus_space_tag_t		bt;
>+		bus_space_handle_t	bh;
>+		u_int32_t		rom_size;
>+		u_int8_t		buf[3];
>+
>+		bus_set_resource(child, SYS_RES_MEMORY, rnum, chunk, IOMEM_STEP);
>+		rid = rnum;
>+		res = bus_alloc_resource(child, SYS_RES_MEMORY, &rid, 0ul, ~0ul, IOMEM_STEP, RF_ACTIVE);
>+		if (res == NULL) {
>+			bus_delete_resource(child, SYS_RES_MEMORY, rnum);
>+			continue;
>+		}
>+		bt = rman_get_bustag(res);
>+		bh = rman_get_bushandle(res);
>+		bus_space_read_region_1(bt, bh, 0, buf, sizeof(buf));
>+		bus_release_resource(child, SYS_RES_MEMORY, rid, res);
>+		bus_delete_resource(child, SYS_RES_MEMORY, rnum);
>+		if (buf[0] != 0x55 || buf[1] != 0xAA || (buf[2] & 0x03) != 0) {
>+			continue;
>+		}
>+		rom_size = buf[2] << 9;
>+		bus_set_resource(child, SYS_RES_MEMORY, rnum, chunk, rom_size);
>+		rid = rnum;
>+		res = bus_alloc_resource(child, SYS_RES_MEMORY, &rid, 0ul, ~0ul, rom_size, 0);
>+		if (res == NULL) {
>+			bus_delete_resource(child, SYS_RES_MEMORY, rnum);
>+			continue;
>+		}
>+		chunk += rom_size - IOMEM_STEP;
>+		rnum++;
>+	}
>+	if(rnum == 0)
>+		device_delete_child(parent, child);
>+}
>+
>+static device_method_t orm_methods[] = {
>+	/* Device interface */
>+	DEVMETHOD(device_identify,	orm_identify),
>+	DEVMETHOD(device_probe,		orm_probe),
>+	DEVMETHOD(device_attach,	orm_attach),
>+	{ 0, 0 }
>+};
>+
>+static driver_t orm_driver = {
>+	"orm",
>+	orm_methods,
>+	0
>+};
>+
>+static devclass_t orm_devclass;
>+
>+DRIVER_MODULE(orm, isa, orm_driver, orm_devclass, 0, 0);

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