Re: [PATCH] term/serial: Add support for PCI serial devices

[Peter Zijlstra <peterz@infradead.org>]

On Wed, Aug 24, 2022 at 03:13:55PM -0500, Glenn Washburn wrote:
> > Index: grub2-2.06/include/grub/pci.h
> > ===================================================================
> > --- grub2-2.06.orig/include/grub/pci.h
> > +++ grub2-2.06/include/grub/pci.h
> > @@ -83,6 +83,9 @@
> >  #define  GRUB_PCI_CLASS_SUBCLASS_VGA  0x0300
> >  #define  GRUB_PCI_CLASS_SUBCLASS_USB  0x0c03
> 
> These are inconsistent with the naming of the added macros below, but I
> prefer the more informative naming style below. Would you be
> interested in creating a second following patch in your v2 which
> changes these above to GRUB_PCI_CLASS_DISPLAY_VGA and
> GRUB_PCI_CLASS_SERIAL_USB?

Like, so eh? :-)

quilt new grub-rename-pci-class.patch;
git grep -l -e GRUB_PCI_CLASS_SUBCLASS_USB -e GRUB_PCI_CLASS_SUBCLASS_VGA | while read file;
do
	quilt add $file;
	sed -i -e 's/GRUB_PCI_CLASS_SUBCLASS_USB/GRUB_PCI_CLASS_SERIAL_USB/g' -e 's/GRUB_PCI_CLASS_SUBCLASS_VGA/GRUB_PCI_CLASS_DISPLAY_VGA/g' $file;
done

---
Index: grub/grub-core/kern/i386/qemu/init.c
===================================================================
--- grub.orig/grub-core/kern/i386/qemu/init.c
+++ grub/grub-core/kern/i386/qemu/init.c
@@ -168,11 +168,11 @@ enable_cards (grub_pci_device_t dev,
 
   class = (grub_pci_read (addr) >> 16) & 0xffff;
 
-  if (class == GRUB_PCI_CLASS_SUBCLASS_VGA)
+  if (class == GRUB_PCI_CLASS_DISPLAY_VGA)
     cmd |= GRUB_PCI_COMMAND_IO_ENABLED
       | GRUB_PCI_COMMAND_MEM_ENABLED;
 
-  if (class == GRUB_PCI_CLASS_SUBCLASS_USB)
+  if (class == GRUB_PCI_CLASS_SERIAL_USB)
     return 0;
 
   addr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND);
Index: grub/grub-core/video/efi_uga.c
===================================================================
--- grub.orig/grub-core/video/efi_uga.c
+++ grub/grub-core/video/efi_uga.c
@@ -100,7 +100,7 @@ find_card (grub_pci_device_t dev, grub_p
   addr = grub_pci_make_address (dev, GRUB_PCI_REG_CLASS);
   subclass = (grub_pci_read (addr) >> 16) & 0xffff;
 
-  if (subclass != GRUB_PCI_CLASS_SUBCLASS_VGA)
+  if (subclass != GRUB_PCI_CLASS_DISPLAY_VGA)
     return 0;
 
   /* Enable MEM address spaces */
Index: grub/grub-core/video/radeon_fuloong2e.c
===================================================================
--- grub.orig/grub-core/video/radeon_fuloong2e.c
+++ grub/grub-core/video/radeon_fuloong2e.c
@@ -72,7 +72,7 @@ find_card (grub_pci_device_t dev, grub_p
   addr = grub_pci_make_address (dev, GRUB_PCI_REG_CLASS);
   class = grub_pci_read (addr);
 
-  if (((class >> 16) & 0xffff) != GRUB_PCI_CLASS_SUBCLASS_VGA
+  if (((class >> 16) & 0xffff) != GRUB_PCI_CLASS_DISPLAY_VGA
       || pciid != 0x515a1002)
     return 0;
 
Index: grub/grub-core/video/radeon_yeeloong3a.c
===================================================================
--- grub.orig/grub-core/video/radeon_yeeloong3a.c
+++ grub/grub-core/video/radeon_yeeloong3a.c
@@ -71,7 +71,7 @@ find_card (grub_pci_device_t dev, grub_p
   addr = grub_pci_make_address (dev, GRUB_PCI_REG_CLASS);
   class = grub_pci_read (addr);
 
-  if (((class >> 16) & 0xffff) != GRUB_PCI_CLASS_SUBCLASS_VGA
+  if (((class >> 16) & 0xffff) != GRUB_PCI_CLASS_DISPLAY_VGA
       || pciid != 0x96151002)
     return 0;
 
Index: grub/grub-core/video/sis315pro.c
===================================================================
--- grub.orig/grub-core/video/sis315pro.c
+++ grub/grub-core/video/sis315pro.c
@@ -100,7 +100,7 @@ find_card (grub_pci_device_t dev, grub_p
   addr = grub_pci_make_address (dev, GRUB_PCI_REG_CLASS);
   class = grub_pci_read (addr);
 
-  if (((class >> 16) & 0xffff) != GRUB_PCI_CLASS_SUBCLASS_VGA
+  if (((class >> 16) & 0xffff) != GRUB_PCI_CLASS_DISPLAY_VGA
       || pciid != GRUB_SIS315PRO_PCIID)
     return 0;
 
Index: grub/grub-core/video/sm712.c
===================================================================
--- grub.orig/grub-core/video/sm712.c
+++ grub/grub-core/video/sm712.c
@@ -372,7 +372,7 @@ find_card (grub_pci_device_t dev, grub_p
   addr = grub_pci_make_address (dev, GRUB_PCI_REG_CLASS);
   class = grub_pci_read (addr);
 
-  if (((class >> 16) & 0xffff) != GRUB_PCI_CLASS_SUBCLASS_VGA
+  if (((class >> 16) & 0xffff) != GRUB_PCI_CLASS_DISPLAY_VGA
       || pciid != GRUB_SM712_PCIID)
     return 0;
 
Index: grub/include/grub/pci.h
===================================================================
--- grub.orig/include/grub/pci.h
+++ grub/include/grub/pci.h
@@ -81,8 +81,8 @@
 #define  GRUB_PCI_STATUS_DEVSEL_TIMING_SHIFT 9
 #define  GRUB_PCI_STATUS_DEVSEL_TIMING_MASK 0x0600
 
-#define  GRUB_PCI_CLASS_SUBCLASS_VGA  0x0300
-#define  GRUB_PCI_CLASS_SUBCLASS_USB  0x0c03
+#define  GRUB_PCI_CLASS_DISPLAY_VGA           0x0300
+#define  GRUB_PCI_CLASS_SERIAL_USB            0x0c03
 #define  GRUB_PCI_CLASS_COMMUNICATION_SERIAL  0x0700
 #define  GRUB_PCI_CLASS_COMMUNICATION_MODEM   0x0703