[2280] 2009-06-08 Oliver Henshaw <[email protected]>

Revision: 2280
          http://svn.sv.gnu.org/viewvc/?view=rev&root=grub&revision=2280
Author:   proski
Date:     2009-06-08 20:23:09 +0000 (Mon, 08 Jun 2009)
Log Message:
-----------
2009-06-08  Oliver Henshaw <[email protected]>

	* bus/usb/ohci.c (grub_ohci_pci_iter): Define the Class,
	Subclass and Programming Interface fields in terms of the 3 byte
	Class Code register.
	* bus/usb/uhci.c (grub_uhci_pci_iter): Likewise.

Modified Paths:
--------------
    trunk/grub2/ChangeLog
    trunk/grub2/bus/usb/ohci.c
    trunk/grub2/bus/usb/uhci.c

Modified: trunk/grub2/ChangeLog
===================================================================
--- trunk/grub2/ChangeLog	2009-06-08 20:20:13 UTC (rev 2279)
+++ trunk/grub2/ChangeLog	2009-06-08 20:23:09 UTC (rev 2280)
@@ -1,5 +1,10 @@
 2009-06-08  Oliver Henshaw <[email protected]>
 
+	* bus/usb/ohci.c (grub_ohci_pci_iter): Define the Class,
+	Subclass and Programming Interface fields in terms of the 3 byte
+	Class Code register.
+	* bus/usb/uhci.c (grub_uhci_pci_iter): Likewise.
+
 	* bus/usb/ohci.c (grub_ohci_pci_iter): Check that programming
 	interface is OHCI.  Add grub_dprintf for symmetry with
 	bus/usb/uhci.c.

Modified: trunk/grub2/bus/usb/ohci.c
===================================================================
--- trunk/grub2/bus/usb/ohci.c	2009-06-08 20:20:13 UTC (rev 2279)
+++ trunk/grub2/bus/usb/ohci.c	2009-06-08 20:23:09 UTC (rev 2280)
@@ -116,6 +116,7 @@
 grub_ohci_pci_iter (int bus, int device, int func,
 		    grub_pci_id_t pciid __attribute__((unused)))
 {
+  grub_uint32_t class_code;
   grub_uint32_t class;
   grub_uint32_t subclass;
   grub_uint32_t interf;
@@ -126,11 +127,11 @@
   grub_uint32_t frame_interval;
 
   addr = grub_pci_make_address (bus, device, func, 2);
-  class = grub_pci_read (addr);
+  class_code = grub_pci_read (addr) >> 8;
 
-  interf = (class >> 8) & 0xFF;
-  subclass = (class >> 16) & 0xFF;
-  class >>= 24;
+  interf = class_code & 0xFF;
+  subclass = (class_code >> 8) & 0xFF;
+  class = class_code >> 16;
 
   /* If this is not an OHCI controller, just return.  */
   if (class != 0x0c || subclass != 0x03 || interf != 0x10)

Modified: trunk/grub2/bus/usb/uhci.c
===================================================================
--- trunk/grub2/bus/usb/uhci.c	2009-06-08 20:20:13 UTC (rev 2279)
+++ trunk/grub2/bus/usb/uhci.c	2009-06-08 20:23:09 UTC (rev 2280)
@@ -141,6 +141,7 @@
 grub_uhci_pci_iter (int bus, int device, int func,
 		    grub_pci_id_t pciid __attribute__((unused)))
 {
+  grub_uint32_t class_code;
   grub_uint32_t class;
   grub_uint32_t subclass;
   grub_uint32_t interf;
@@ -151,11 +152,11 @@
   int i;
 
   addr = grub_pci_make_address (bus, device, func, 2);
-  class = grub_pci_read (addr);
+  class_code = grub_pci_read (addr) >> 8;
 
-  interf = (class >> 8) & 0xFF;
-  subclass = (class >> 16) & 0xFF;
-  class >>= 24;
+  interf = class_code & 0xFF;
+  subclass = (class_code >> 8) & 0xFF;
+  class = class_code >> 16;
 
   /* If this is not an UHCI controller, just return.  */
   if (class != 0x0c || subclass != 0x03 || interf != 0x00)