grub-core/commands/lspci.c - chromiumos/third_party/grub2 - Git at Google

 /* lspci.c - List PCI devices.  */
 /*
  *  GRUB  --  GRand Unified Bootloader
  *  Copyright (C) 2008, 2009  Free Software Foundation, Inc.
  *
  *  GRUB is free software: you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation, either version 3 of the License, or
  *  (at your option) any later version.
  *
  *  GRUB is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  */

 #include <grub/pci.h>
 #include <grub/dl.h>
 #include <grub/misc.h>
 #include <grub/extcmd.h>
 #include <grub/i18n.h>

 GRUB_MOD_LICENSE ("GPLv3+");

 struct grub_pci_classname
 {
   int class;
   int subclass;
   const char *desc;
 };

 static const struct grub_pci_classname grub_pci_classes[] =
   {
     { 0, 0, "" },
     { 1, 0, "SCSI Controller" },
     { 1, 1, "IDE Controller" },
     { 1, 2, "Floppy Controller" },
     { 1, 3, "IPI Controller" },
     { 1, 4, "RAID Controller" },
     { 1, 6, "SATA Controller" },
     { 1, 0x80, "Mass storage Controller" },
     { 2, 0, "Ethernet Controller" },
     { 2, 1, "Token Ring Controller" },
     { 2, 2, "FDDI Controller" },
     { 2, 3, "ATM Controller" },
     { 2, 4, "ISDN Controller" },
     { 2, 0x80, "Network controller" },
     { 3, 0, "VGA Controller" },
     { 3, 1, "XGA Controller" },
     { 3, 2, "3D Controller" },
     { 3, 0x80, "Display Controller" },
     { 4, 0, "Multimedia Video Device" },
     { 4, 1, "Multimedia Audio Device" },
     { 4, 2, "Multimedia Telephony Device" },
     { 4, 0x80, "Multimedia device" },
     { 5, 0, "RAM Controller" },
     { 5, 1, "Flash Memory Controller" },
     { 5, 0x80, "Memory Controller" },
     { 6, 0, "Host Bridge" },
     { 6, 1, "ISA Bridge" },
     { 6, 2, "EISA Bride" },
     { 6, 3, "MCA Bridge" },
     { 6, 4, "PCI-PCI Bridge" },
     { 6, 5, "PCMCIA Bridge" },
     { 6, 6, "NuBus Bridge" },
     { 6, 7, "CardBus Bridge" },
     { 6, 8, "Raceway Bridge" },
     { 6, 0x80, "Unknown Bridge" },
     { 7, 0x80, "Communication controller" },
     { 8, 0x80, "System hardware" },
     { 9, 0, "Keyboard Controller" },
     { 9, 1, "Digitizer" },
     { 9, 2, "Mouse Controller" },
     { 9, 3, "Scanner Controller" },
     { 9, 4, "Gameport Controller" },
     { 9, 0x80, "Unknown Input Device" },
     { 10, 0, "Generic Docking Station" },
     { 10, 0x80, "Unknown Docking Station" },
     { 11, 0, "80386 Processor" },
     { 11, 1, "80486 Processor" },
     { 11, 2, "Pentium Processor" },
     { 11, 0x10, "Alpha Processor" },
     { 11, 0x20, "PowerPC Processor" },
     { 11, 0x30, "MIPS Processor" },
     { 11, 0x40, "Co-Processor" },
     { 11, 0x80, "Unknown Processor" },
     { 12, 3, "USB Controller" },
     { 12, 0x80, "Serial Bus Controller" },
     { 13, 0x80, "Wireless Controller" },
     { 14, 0, "I2O" },
     { 15, 0, "IrDA Controller" },
     { 15, 1, "Consumer IR" },
     { 15, 0x10, "RF-Controller" },
     { 15, 0x80, "Satellite Communication Controller" },
     { 16, 0, "Network Decryption" },
     { 16, 1, "Entertainment Decryption" },
     { 16, 0x80, "Unknown Decryption Controller" },
     { 17, 0, "Digital IO Module" },
     { 17, 0x80, "Unknown Data Input System" },
     { 0, 0, 0 },
   };

 static const char *
 grub_pci_get_class (int class, int subclass)
 {
   const struct grub_pci_classname *curr = grub_pci_classes;

   while (curr->desc)
     {
       if (curr->class == class && curr->subclass == subclass)
 	return curr->desc;
       curr++;
     }

   return 0;
 }

 static const struct grub_arg_option options[] =
   {
     {"iospace", 'i', 0, "show I/O spaces", 0, 0},
     {0, 0, 0, 0, 0, 0}
   };

 static int iospace;

 static int NESTED_FUNC_ATTR
 grub_lspci_iter (grub_pci_device_t dev, grub_pci_id_t pciid)
 {
   grub_uint32_t class;
   const char *sclass;
   grub_pci_address_t addr;
   int reg;

   grub_printf ("%02x:%02x.%x %04x:%04x", grub_pci_get_bus (dev),
 	       grub_pci_get_device (dev), grub_pci_get_function (dev),
 	       pciid & 0xFFFF, pciid >> 16);
   addr = grub_pci_make_address (dev, GRUB_PCI_REG_CLASS);
   class = grub_pci_read (addr);

   /* Lookup the class name, if there isn't a specific one,
      retry with 0x80 to get the generic class name.  */
   sclass = grub_pci_get_class (class >> 24, (class >> 16) & 0xFF);
   if (! sclass)
     sclass = grub_pci_get_class (class >> 24, 0x80);
   if (! sclass)
     sclass = "";

   grub_printf (" [%04x] %s", (class >> 16) & 0xffff, sclass);

   grub_uint8_t pi = (class >> 8) & 0xff;
   if (pi)
     grub_printf (" [PI %02x]", pi);

   grub_printf ("\n");

   if (iospace)
     {
       reg = GRUB_PCI_REG_ADDRESSES;
       while (reg < GRUB_PCI_REG_CIS_POINTER)
 	{
 	  grub_uint64_t space;
 	  addr = grub_pci_make_address (dev, reg);
 	  space = grub_pci_read (addr);

 	  reg += sizeof (grub_uint32_t);

 	  if (space == 0)
 	    continue;

 	  switch (space & GRUB_PCI_ADDR_SPACE_MASK)
 	    {
 	    case GRUB_PCI_ADDR_SPACE_IO:
 	      grub_printf ("\tIO space %d at 0x%llx\n",
 			   (unsigned) ((reg - GRUB_PCI_REG_ADDRESSES)
 			    / sizeof (grub_uint32_t)) - 1,
 			   (unsigned long long)
 			   (space & GRUB_PCI_ADDR_IO_MASK));
 	      break;
 	    case GRUB_PCI_ADDR_SPACE_MEMORY:
 	      if ((space & GRUB_PCI_ADDR_MEM_TYPE_MASK)
 		  == GRUB_PCI_ADDR_MEM_TYPE_64)
 		{
 		  addr = grub_pci_make_address (dev, reg);
 		  space |= ((grub_uint64_t) grub_pci_read (addr)) << 32;
 		  reg += sizeof (grub_uint32_t);
 		  grub_printf ("\t64-bit memory space %d at 0x%016llx [%s]\n",
 			       (unsigned) ((reg - GRUB_PCI_REG_ADDRESSES)
 				/ sizeof (grub_uint32_t)) - 2,
 			       (unsigned long long)
 			       (space & GRUB_PCI_ADDR_MEM_MASK),
 			       space & GRUB_PCI_ADDR_MEM_PREFETCH
 			       ? "prefetchable" : "non-prefetchable");

 		}
 	      else
 		grub_printf ("\t32-bit memory space %d at 0x%016llx [%s]\n",
 			     (unsigned) ((reg - GRUB_PCI_REG_ADDRESSES)
 			      / sizeof (grub_uint32_t)) - 1,
 			     (unsigned long long)
 			     (space & GRUB_PCI_ADDR_MEM_MASK),
 			     space & GRUB_PCI_ADDR_MEM_PREFETCH
 			     ? "prefetchable" : "non-prefetchable");
 	      break;
 	    }
 	}
     }


   return 0;
 }

 static grub_err_t
 grub_cmd_lspci (grub_extcmd_context_t ctxt,
 		int argc __attribute__ ((unused)),
 		char **args __attribute__ ((unused)))
 {
   iospace = ctxt->state[0].set;
   grub_pci_iterate (grub_lspci_iter);
   return GRUB_ERR_NONE;
 }

 static grub_extcmd_t cmd;

 GRUB_MOD_INIT(lspci)
 {
   cmd = grub_register_extcmd ("lspci", grub_cmd_lspci, 0, "[-i]",
 			      N_("List PCI devices."), options);
 }

 GRUB_MOD_FINI(lspci)
 {
   grub_unregister_extcmd (cmd);
 }
	/* lspci.c - List PCI devices. */
	/*
	* GRUB -- GRand Unified Bootloader
	* Copyright (C) 2008, 2009 Free Software Foundation, Inc.
	*
	* GRUB is free software: you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation, either version 3 of the License, or
	* (at your option) any later version.
	*
	* GRUB is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
	*/

	#include <grub/pci.h>
	#include <grub/dl.h>
	#include <grub/misc.h>
	#include <grub/extcmd.h>
	#include <grub/i18n.h>

	GRUB_MOD_LICENSE ("GPLv3+");

	struct grub_pci_classname
	{
	int class;
	int subclass;
	const char *desc;
	};

	static const struct grub_pci_classname grub_pci_classes[] =
	{
	{ 0, 0, "" },
	{ 1, 0, "SCSI Controller" },
	{ 1, 1, "IDE Controller" },
	{ 1, 2, "Floppy Controller" },
	{ 1, 3, "IPI Controller" },
	{ 1, 4, "RAID Controller" },
	{ 1, 6, "SATA Controller" },
	{ 1, 0x80, "Mass storage Controller" },
	{ 2, 0, "Ethernet Controller" },
	{ 2, 1, "Token Ring Controller" },
	{ 2, 2, "FDDI Controller" },
	{ 2, 3, "ATM Controller" },
	{ 2, 4, "ISDN Controller" },
	{ 2, 0x80, "Network controller" },
	{ 3, 0, "VGA Controller" },
	{ 3, 1, "XGA Controller" },
	{ 3, 2, "3D Controller" },
	{ 3, 0x80, "Display Controller" },
	{ 4, 0, "Multimedia Video Device" },
	{ 4, 1, "Multimedia Audio Device" },
	{ 4, 2, "Multimedia Telephony Device" },
	{ 4, 0x80, "Multimedia device" },
	{ 5, 0, "RAM Controller" },
	{ 5, 1, "Flash Memory Controller" },
	{ 5, 0x80, "Memory Controller" },
	{ 6, 0, "Host Bridge" },
	{ 6, 1, "ISA Bridge" },
	{ 6, 2, "EISA Bride" },
	{ 6, 3, "MCA Bridge" },
	{ 6, 4, "PCI-PCI Bridge" },
	{ 6, 5, "PCMCIA Bridge" },
	{ 6, 6, "NuBus Bridge" },
	{ 6, 7, "CardBus Bridge" },
	{ 6, 8, "Raceway Bridge" },
	{ 6, 0x80, "Unknown Bridge" },
	{ 7, 0x80, "Communication controller" },
	{ 8, 0x80, "System hardware" },
	{ 9, 0, "Keyboard Controller" },
	{ 9, 1, "Digitizer" },
	{ 9, 2, "Mouse Controller" },
	{ 9, 3, "Scanner Controller" },
	{ 9, 4, "Gameport Controller" },
	{ 9, 0x80, "Unknown Input Device" },
	{ 10, 0, "Generic Docking Station" },
	{ 10, 0x80, "Unknown Docking Station" },
	{ 11, 0, "80386 Processor" },
	{ 11, 1, "80486 Processor" },
	{ 11, 2, "Pentium Processor" },
	{ 11, 0x10, "Alpha Processor" },
	{ 11, 0x20, "PowerPC Processor" },
	{ 11, 0x30, "MIPS Processor" },
	{ 11, 0x40, "Co-Processor" },
	{ 11, 0x80, "Unknown Processor" },
	{ 12, 3, "USB Controller" },
	{ 12, 0x80, "Serial Bus Controller" },
	{ 13, 0x80, "Wireless Controller" },
	{ 14, 0, "I2O" },
	{ 15, 0, "IrDA Controller" },
	{ 15, 1, "Consumer IR" },
	{ 15, 0x10, "RF-Controller" },
	{ 15, 0x80, "Satellite Communication Controller" },
	{ 16, 0, "Network Decryption" },
	{ 16, 1, "Entertainment Decryption" },
	{ 16, 0x80, "Unknown Decryption Controller" },
	{ 17, 0, "Digital IO Module" },
	{ 17, 0x80, "Unknown Data Input System" },
	{ 0, 0, 0 },
	};

	static const char *
	grub_pci_get_class (int class, int subclass)
	{
	const struct grub_pci_classname *curr = grub_pci_classes;

	while (curr->desc)
	{
	if (curr->class == class && curr->subclass == subclass)
	return curr->desc;
	curr++;
	}

	return 0;
	}

	static const struct grub_arg_option options[] =
	{
	{"iospace", 'i', 0, "show I/O spaces", 0, 0},
	{0, 0, 0, 0, 0, 0}
	};

	static int iospace;

	static int NESTED_FUNC_ATTR
	grub_lspci_iter (grub_pci_device_t dev, grub_pci_id_t pciid)
	{
	grub_uint32_t class;
	const char *sclass;
	grub_pci_address_t addr;
	int reg;

	grub_printf ("%02x:%02x.%x %04x:%04x", grub_pci_get_bus (dev),
	grub_pci_get_device (dev), grub_pci_get_function (dev),
	pciid & 0xFFFF, pciid >> 16);
	addr = grub_pci_make_address (dev, GRUB_PCI_REG_CLASS);
	class = grub_pci_read (addr);

	/* Lookup the class name, if there isn't a specific one,
	retry with 0x80 to get the generic class name. */
	sclass = grub_pci_get_class (class >> 24, (class >> 16) & 0xFF);
	if (! sclass)
	sclass = grub_pci_get_class (class >> 24, 0x80);
	if (! sclass)
	sclass = "";

	grub_printf (" [%04x] %s", (class >> 16) & 0xffff, sclass);

	grub_uint8_t pi = (class >> 8) & 0xff;
	if (pi)
	grub_printf (" [PI %02x]", pi);

	grub_printf ("\n");

	if (iospace)
	{
	reg = GRUB_PCI_REG_ADDRESSES;
	while (reg < GRUB_PCI_REG_CIS_POINTER)
	{
	grub_uint64_t space;
	addr = grub_pci_make_address (dev, reg);
	space = grub_pci_read (addr);

	reg += sizeof (grub_uint32_t);

	if (space == 0)
	continue;

	switch (space & GRUB_PCI_ADDR_SPACE_MASK)
	{
	case GRUB_PCI_ADDR_SPACE_IO:
	grub_printf ("\tIO space %d at 0x%llx\n",
	(unsigned) ((reg - GRUB_PCI_REG_ADDRESSES)
	/ sizeof (grub_uint32_t)) - 1,
	(unsigned long long)
	(space & GRUB_PCI_ADDR_IO_MASK));
	break;
	case GRUB_PCI_ADDR_SPACE_MEMORY:
	if ((space & GRUB_PCI_ADDR_MEM_TYPE_MASK)
	== GRUB_PCI_ADDR_MEM_TYPE_64)
	{
	addr = grub_pci_make_address (dev, reg);
	space \|= ((grub_uint64_t) grub_pci_read (addr)) << 32;
	reg += sizeof (grub_uint32_t);
	grub_printf ("\t64-bit memory space %d at 0x%016llx [%s]\n",
	(unsigned) ((reg - GRUB_PCI_REG_ADDRESSES)
	/ sizeof (grub_uint32_t)) - 2,
	(unsigned long long)
	(space & GRUB_PCI_ADDR_MEM_MASK),
	space & GRUB_PCI_ADDR_MEM_PREFETCH
	? "prefetchable" : "non-prefetchable");

	}
	else
	grub_printf ("\t32-bit memory space %d at 0x%016llx [%s]\n",
	(unsigned) ((reg - GRUB_PCI_REG_ADDRESSES)
	/ sizeof (grub_uint32_t)) - 1,
	(unsigned long long)
	(space & GRUB_PCI_ADDR_MEM_MASK),
	space & GRUB_PCI_ADDR_MEM_PREFETCH
	? "prefetchable" : "non-prefetchable");
	break;
	}
	}
	}


	return 0;
	}

	static grub_err_t
	grub_cmd_lspci (grub_extcmd_context_t ctxt,
	int argc __attribute__ ((unused)),
	char **args __attribute__ ((unused)))
	{
	iospace = ctxt->state[0].set;
	grub_pci_iterate (grub_lspci_iter);
	return GRUB_ERR_NONE;
	}

	static grub_extcmd_t cmd;

	GRUB_MOD_INIT(lspci)
	{
	cmd = grub_register_extcmd ("lspci", grub_cmd_lspci, 0, "[-i]",
	N_("List PCI devices."), options);
	}

	GRUB_MOD_FINI(lspci)
	{
	grub_unregister_extcmd (cmd);
	}