Add testpci command

1/1

| if testpci 8086:1237; then
|   set default="2"
| fi
@@ -837,6 +837,12 @@
 };
 
 module = {
+  name = testpci;
+  common = commands/testpci.c;
+  enable = pci;
+};
+
+module = {
   name = true;
   common = commands/true.c;
 };

I'm out of bed and dressed.  What more do you want?
| if testpci 8086:1237; then
|   set default="2"
| fi
@@ -837,6 +837,12 @@
 };
 
 module = {
+  name = testpci;
+  common = commands/testpci.c;
+  enable = pci;
+};
+
+module = {
  name = true;
  common = commands/true.c;
 };

@@ -0,0 +1,75 @@
+/* testpci.c - Test for PCI device existence.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2012  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/extcmd.h>
+#include <grub/misc.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static int pcifound;
+static grub_pci_id_t pcisearch;
+
+static int NESTED_FUNC_ATTR
+grub_testpci_iter (grub_pci_device_t dev __attribute__ ((unused)),
+                   grub_pci_id_t pciid)
+{
+  if (pciid == pcisearch) {
+    pcifound = 1;
+    return 1;
+  }
+
+  return 0;
+}
+
+static grub_err_t
+grub_cmd_testpci (grub_command_t ctxt __attribute__ ((unused)),
+		  int argc,
+		  char **args)
+{
+  pcifound = 0;
+
+  if (argc != 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "Device to search for required");
+
+  if ((grub_strlen(args[0]) != 9) || args[0][4] != ':')
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "Device ID must be xxxx:yyyy");
+
+  pcisearch = grub_strtoul(args[0], 0, 16) +
+    (grub_strtoul(&args[0][5], 0, 16) << 16);
+
+  grub_pci_iterate (grub_testpci_iter);
+
+  return pcifound ? GRUB_ERR_NONE : grub_error (GRUB_ERR_TEST_FAILURE, "false");
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(testpci)
+{
+  cmd = grub_register_command ("testpci", grub_cmd_testpci, "xxxx:yyyy",
+			       N_("Test for PCI device existence."));
+}
+
+GRUB_MOD_FINI(testpci)
+{
+  grub_unregister_command (cmd);
+}
-----

I'm out of bed and dressed.  What more do you want?

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| if testpci 8086:1237; then
|   set default="2"
| fi
@@ -837,6 +837,12 @@
 };
 
 module = {
+  name = testpci;
+  common = commands/testpci.c;
+  enable = pci;
+};
+
+module = {
  name = true;
  common = commands/true.c;
 };

@@ -0,0 +1,75 @@
+/* testpci.c - Test for PCI device existence.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2012  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/extcmd.h>
+#include <grub/misc.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static int pcifound;
+static grub_pci_id_t pcisearch;
+
+static int NESTED_FUNC_ATTR
+grub_testpci_iter (grub_pci_device_t dev __attribute__ ((unused)),
+                   grub_pci_id_t pciid)
+{
+  if (pciid == pcisearch) {
+    pcifound = 1;
+    return 1;
+  }
+
+  return 0;
+}
+
+static grub_err_t
+grub_cmd_testpci (grub_command_t ctxt __attribute__ ((unused)),
+		  int argc,
+		  char **args)
+{
+  pcifound = 0;
+
+  if (argc != 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "Device to search for 

+
+  if ((grub_strlen(args[0]) != 9) || args[0][4] != ':')
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "Device ID must be 

+
+  pcisearch = grub_strtoul(args[0], 0, 16) +
+    (grub_strtoul(&args[0][5], 0, 16) << 16);
+
+  grub_pci_iterate (grub_testpci_iter);
+
+  return pcifound ? GRUB_ERR_NONE : grub_error (GRUB_ERR_TEST_FAILURE, 

+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(testpci)
+{
+  cmd = grub_register_command ("testpci", grub_cmd_testpci, "xxxx:yyyy",
+			       N_("Test for PCI device existence."));
+}
+
+GRUB_MOD_FINI(testpci)
+{
+  grub_unregister_command (cmd);
+}
-----

I'm out of bed and dressed.  What more do you want?

_______________________________________________
Grub-devel mailing list
[email protected]
https://lists.gnu.org/mailman/listinfo/grub-devel
Regards
Vladimir 'φ-coder/phcoder' Serbinenko
| if testpci 8086:1237; then
|   set default="2"
| fi
@@ -0,0 +1,75 @@
+/* testpci.c - Test for PCI device existence.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2012  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/extcmd.h>
+#include <grub/misc.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static int pcifound;
+static grub_pci_id_t pcisearch;
+
+static int NESTED_FUNC_ATTR
+grub_testpci_iter (grub_pci_device_t dev __attribute__ ((unused)),
+                   grub_pci_id_t pciid)
+{
+  if (pciid == pcisearch) {
+    pcifound = 1;
+    return 1;
+  }
+
+  return 0;
+}

+
+static grub_err_t
+grub_cmd_testpci (grub_command_t ctxt __attribute__ ((unused)),
+		  int argc,
+		  char **args)
+{
+  pcifound = 0;
+
+  if (argc != 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "Device to search for required");

+
+  if ((grub_strlen(args[0]) != 9) || args[0][4] != ':')
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "Device ID must be xxxx:yyyy");
+
+  pcisearch = grub_strtoul(args[0], 0, 16) +
+    (grub_strtoul(&args[0][5], 0, 16) << 16);
+

+  grub_pci_iterate (grub_testpci_iter);
+
+  return pcifound ? GRUB_ERR_NONE : grub_error (GRUB_ERR_TEST_FAILURE, "false");
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(testpci)
+{
+  cmd = grub_register_command ("testpci", grub_cmd_testpci, "xxxx:yyyy",

Regards
Vladimir 'φ-coder/phcoder' Serbinenko
| if testpci 8086:1237; then
|   set default="2"
| fi
| if testpci --vendor=0x8086 --subvendor=0x1af4 --subproduct=0x1100; then
|   set default="2"
| fi
@@ -837,6 +837,12 @@
 };
 
 module = {
+  name = testpci;
+  common = commands/testpci.c;
+  enable = pci;
+};
+
+module = {
   name = true;
   common = commands/true.c;
 };

Web [   "Don't pull the trigger. That would kinda give away the    ]
site: http:// [                  game."                  ]       Made by
www.earth.li/~noodles/  [                      ]         HuggieTag 0.0.24
| if testpci 8086:1237; then
|   set default="2"
| fi
| if testpci --vendor=0x8086 --subvendor=0x1af4 --subproduct=0x1100; then
|   set default="2"
| fi
| if testpci 8086:1237; then
|   set default="2"
| fi
| if testpci --vendor=0x8086 --subvendor=0x1af4 --subproduct=0x1100; then
|   set default="2"
| fi
@@ -3302,6 +3302,7 @@
 * search::                      Search devices by file, label, or UUID
 * sendkey::                     Emulate keystrokes
 * set::                         Set an environment variable
+* testpci::                     Test for the existence of a PCI device
 * true::                        Do nothing, successfully
 * unset::                       Unset an environment variable
 * uppermem::                    Set the upper memory size

@@ -4068,6 +4069,18 @@
 @end deffn
 
 
+@node testpci
+@subsection testpci
+
+@deffn Command testpci [@option{--vendor=VENDORID}] @
+  [@option{--product=PRODUCTID}] [@option{--subvendor VENDORID}] @
+  [@option{--subproduct PRODUCTID}]
+Test for the existence of a given PCI device. Returns true if a device
+matching the specified vendor/product and/or subvendor/subproduct information
+is found.
+@end deffn
+
+
 @node true
 @subsection true
 

@@ -837,6 +837,12 @@
 };
 
 module = {
+  name = testpci;
+  common = commands/testpci.c;
+  enable = pci;
+};
+
+module = {
   name = true;
   common = commands/true.c;
 };

You drive a hard bargain for a seagull.
@@ -3302,6 +3302,7 @@
 * search::                      Search devices by file, label, or UUID
 * sendkey::                     Emulate keystrokes
 * set::                         Set an environment variable
+* testpci::                     Test for the existence of a PCI device
 * true::                        Do nothing, successfully
 * unset::                       Unset an environment variable
 * uppermem::                    Set the upper memory size

@@ -4068,6 +4069,18 @@
 @end deffn
 
 
+@node testpci
+@subsection testpci
+
+@deffn Command testpci [@option{--vendor=VENDORID}] @
+  [@option{--product=PRODUCTID}] [@option{--subvendor VENDORID}] @
+  [@option{--subproduct PRODUCTID}]
+Test for the existence of a given PCI device. Returns true if a device
+matching the specified vendor/product and/or subvendor/subproduct information
+is found.
+@end deffn
+
+
 @node true
 @subsection true
 

@@ -837,6 +837,12 @@
 };
 
 module = {
+  name = testpci;
+  common = commands/testpci.c;
+  enable = pci;
+};
+
+module = {
   name = true;
   common = commands/true.c;
 };

@@ -0,0 +1,114 @@
+/* testpci.c - Test for PCI device existence.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2012  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/extcmd.h>
+#include <grub/misc.h>
+#include <grub/i18n.h>
+

+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const struct grub_arg_option options[] =
+  {
+    {"vendor", 'v' , 0, N_("PCI vendor ID to look for"), 0, ARG_TYPE_INT},
+    {"product", 'p' , 0, N_("PCI product ID to look for"), 0, ARG_TYPE_INT},
+    {"subvendor", 's' , 0, N_("PCI subsystem vendor ID to look for"), 0, ARG_TYPE_INT},
+    {"subproduct", 't' , 0, N_("PCI subsystem product ID to look for"), 0, ARG_TYPE_INT},
+    {0, 0, 0, 0, 0, 0}
+  };

+
+static int pcifound;
+static grub_uint32_t pcimask, pcisubmask;
+static grub_pci_id_t pcisearch;
+static grub_pci_id_t pcisubsearch;
+
+static int NESTED_FUNC_ATTR
+grub_testpci_iter (grub_pci_device_t dev __attribute__ ((unused)),
+                   grub_pci_id_t pciid)
+{
+  grub_pci_address_t addr;
+  grub_uint32_t subsystem;
+
+  if ((pciid & pcimask) != pcisearch) {
+    return 0;

+  }
+
+  if (pcisubmask != 0) {
+    addr = grub_pci_make_address (dev, GRUB_PCI_REG_SUBVENDOR);
+    subsystem = grub_pci_read (addr);
+    if ((subsystem & pcisubmask) != pcisubsearch) {
+      return 0;
+    }
+  }
+

+  pcifound = 1;
+  return 1;
+}
+
+static grub_err_t
+grub_cmd_testpci (grub_extcmd_context_t ctxt,
+		  int argc __attribute__ ((unused)),
+		  char **args __attribute__ ((unused)))
+{
+  struct grub_arg_list *state = ctxt->state;
+
+  pcifound = pcimask = pcisubmask = pcisearch = pcisubsearch = 0;
+
+  if (state[0].set) {
+    pcisearch |= grub_strtoull (state[0].arg, 0, 16);
+    pcimask |= 0xFFFF;
+  }
+
+  if (state[1].set) {
+    pcisearch |= (grub_strtoull (state[1].arg, 0, 16) << 16);
+    pcimask |= 0xFFFF0000;
+  }
+

+  if (state[2].set) {
+    pcisubsearch |= grub_strtoull (state[2].arg, 0, 16);
+    pcisubmask |= 0xFFFF;
+  }
+
+  if (state[3].set) {
+    pcisubsearch |= (grub_strtoull (state[3].arg, 0, 16) << 16);
+    pcisubmask |= 0xFFFF0000;
+  }
+

Regards
Vladimir 'φ-coder/phcoder' Serbinenko
@@ -3366,6 +3366,7 @@
 * sendkey::                     Emulate keystrokes
 * set::                         Set an environment variable
 * source::                      Read a configuration file in same context
+* testpci::                     Test for the existence of a PCI device
 * true::                        Do nothing, successfully
 * unset::                       Unset an environment variable
 * uppermem::                    Set the upper memory size

@@ -4147,6 +4148,18 @@
 @end deffn
 
 
+@node testpci
+@subsection testpci
+
+@deffn Command testpci [@option{--vendor=VENDORID}] @
+  [@option{--product=PRODUCTID}] [@option{--subvendor VENDORID}] @
+  [@option{--subproduct PRODUCTID}]
+Test for the existence of a given PCI device. Returns true if a device
+matching the specified vendor/product and/or subvendor/subproduct information
+is found.
+@end deffn
+
+
 @node true
 @subsection true
 

@@ -862,6 +862,12 @@
 };
 
 module = {
+  name = testpci;
+  common = commands/testpci.c;
+  enable = pci;
+};
+
+module = {
   name = true;
   common = commands/true.c;
 };

"Basically, if you're allowed to own it, you're probably allowed to
burn it." -- Stephen Gower, ox.general
@@ -3366,6 +3366,7 @@
 * sendkey::                     Emulate keystrokes
 * set::                         Set an environment variable
 * source::                      Read a configuration file in same context
+* testpci::                     Test for the existence of a PCI device
 * true::                        Do nothing, successfully
 * unset::                       Unset an environment variable
 * uppermem::                    Set the upper memory size

@@ -4147,6 +4148,18 @@
 @end deffn
 
 
+@node testpci
+@subsection testpci
+
+@deffn Command testpci [@option{--vendor=VENDORID}] @
+  [@option{--product=PRODUCTID}] [@option{--subvendor VENDORID}] @
+  [@option{--subproduct PRODUCTID}]
+Test for the existence of a given PCI device. Returns true if a device
+matching the specified vendor/product and/or subvendor/subproduct information
+is found.
+@end deffn
+
+
 @node true
 @subsection true
 

@@ -862,6 +862,12 @@
 };
 
 module = {
+  name = testpci;
+  common = commands/testpci.c;
+  enable = pci;
+};
+
+module = {
   name = true;
   common = commands/true.c;
 };

@@ -0,0 +1,128 @@
+/* testpci.c - Test for PCI device existence.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013 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/extcmd.h>
+#include <grub/misc.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const struct grub_arg_option options[] =
+  {
+    {"vendor", 'v' , 0, N_("PCI vendor ID to look for"), 0, ARG_TYPE_STRING},
+    {"product", 'p' , 0, N_("PCI product ID to look for"), 0, ARG_TYPE_STRING},
+    {"subvendor", 's' , 0, N_("PCI subsystem vendor ID to look for"), 0, ARG_TYPE_STRING},
+    {"subproduct", 't' , 0, N_("PCI subsystem product ID to look for"), 0, ARG_TYPE_STRING},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+static grub_uint32_t pcimask, pcisubmask;
+static grub_pci_id_t pcisearch;
+static grub_pci_id_t pcisubsearch;
+
+static int
+grub_testpci_iter (grub_pci_device_t dev __attribute__ ((unused)),
+                  grub_pci_id_t pciid,
+                  void *data)
+{
+  grub_pci_address_t addr;
+  grub_uint32_t subsystem;
+  int *found = data;
+
+  if ((pciid & pcimask) != pcisearch) {
+    return 0;
+  }
+
+  if (pcisubmask != 0) {
+    addr = grub_pci_make_address (dev, GRUB_PCI_REG_SUBVENDOR);
+    subsystem = grub_pci_read (addr);
+    if ((subsystem & pcisubmask) != pcisubsearch) {
+      return 0;
+    }
+  }
+
+  *found = 1;
+  return 1;
+}
+
+static grub_err_t
+grub_cmd_testpci (grub_extcmd_context_t ctxt,
+                 int argc __attribute__ ((unused)),
+                 char **args __attribute__ ((unused)))
+{
+  struct grub_arg_list *state = ctxt->state;
+  int found = 0;
+
+  pcimask = pcisubmask = pcisearch = pcisubsearch = 0;
+
+  if (state[0].set) {
+    pcisearch |= grub_strtoull (state[0].arg, 0, 16);
+    if (grub_errno != GRUB_ERR_NONE) {
+      return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("Couldn't parse PCI vendor ID"));
+    }
+    pcimask |= 0xFFFF;
+  }
+
+  if (state[1].set) {
+    pcisearch |= (grub_strtoull (state[1].arg, 0, 16) << 16);
+    if (grub_errno != GRUB_ERR_NONE) {
+      return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("Couldn't parse PCI product ID"));
+    }
+    pcimask |= 0xFFFF0000;
+  }
+
+  if (state[2].set) {
+    pcisubsearch |= grub_strtoull (state[2].arg, 0, 16);
+    if (grub_errno != GRUB_ERR_NONE) {
+      return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("Couldn't parse PCI subsystem vendor ID"));
+    }
+    pcisubmask |= 0xFFFF;
+  }
+
+  if (state[3].set) {
+    pcisubsearch |= (grub_strtoull (state[3].arg, 0, 16) << 16);
+    if (grub_errno != GRUB_ERR_NONE) {
+      return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("Couldn't parse PCI subsystem product ID"));
+    }
+    pcisubmask |= 0xFFFF0000;
+  }
+
+  grub_pci_iterate (grub_testpci_iter, &found);
+
+  return found ? GRUB_ERR_NONE : grub_error (GRUB_ERR_TEST_FAILURE, "false");
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(testpci)
+{
+  cmd = grub_register_extcmd ("testpci", grub_cmd_testpci, 0,
+                             N_("[--vendor=VENDORID] [--product=PRODUCTID] "
+                                "[--subvendor=VENDORID] "
+                                "[--subproduct=PRODUCTID]"),
+                             N_("Test for PCI device existence."),
+                             options);
+}
+
+GRUB_MOD_FINI(testpci)
+{
+  grub_unregister_extcmd (cmd);
+}
 
-----

Regards
Vladimir 'φ-coder/phcoder' Serbinenko
@@ -3366,6 +3366,7 @@
 * sendkey::                     Emulate keystrokes
 * set::                         Set an environment variable
 * source::                      Read a configuration file in same context
+* testpci::                     Test for the existence of a PCI device
 * true::                        Do nothing, successfully
 * unset::                       Unset an environment variable
 * uppermem::                    Set the upper memory size

@@ -4147,6 +4148,18 @@
 @end deffn
 
 
+@node testpci
+@subsection testpci
+
+@deffn Command testpci [@option{--vendor=VENDORID}] @
+  [@option{--product=PRODUCTID}] [@option{--subvendor VENDORID}] @
+  [@option{--subproduct PRODUCTID}]
+Test for the existence of a given PCI device. Returns true if a device
+matching the specified vendor/product and/or subvendor/subproduct information
+is found. If no options are specified returns true if any PCI device is found.
+@end deffn
+
+
 @node true
 @subsection true
 

@@ -862,6 +862,12 @@
 };
 
 module = {
+  name = testpci;
+  common = commands/testpci.c;
+  enable = pci;
+};
+
+module = {
   name = true;
   common = commands/true.c;
 };

Web [      The less time planning, the more time programming.      ]
site: http:// [                                          ]       Made by
www.earth.li/~noodles/  [                      ]         HuggieTag 0.0.24
@@ -3366,6 +3366,7 @@
 * sendkey::                     Emulate keystrokes
 * set::                         Set an environment variable
 * source::                      Read a configuration file in same context
+* testpci::                     Test for the existence of a PCI device
 * true::                        Do nothing, successfully
 * unset::                       Unset an environment variable
 * uppermem::                    Set the upper memory size

@@ -4147,6 +4148,18 @@
 @end deffn
 
 
+@node testpci
+@subsection testpci
+
+@deffn Command testpci [@option{--vendor=VENDORID}] @
+  [@option{--product=PRODUCTID}] [@option{--subvendor VENDORID}] @
+  [@option{--subproduct PRODUCTID}]
+Test for the existence of a given PCI device. Returns true if a device
+matching the specified vendor/product and/or subvendor/subproduct information
+is found.
+@end deffn
+
+
 @node true
 @subsection true
 

@@ -862,6 +862,12 @@
 };
 
 module = {
+  name = testpci;
+  common = commands/testpci.c;
+  enable = pci;
+};
+
+module = {
   name = true;
   common = commands/true.c;
 };

@@ -0,0 +1,128 @@
+/* testpci.c - Test for PCI device existence.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013 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/extcmd.h>
+#include <grub/misc.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const struct grub_arg_option options[] =
+  {
+    {"vendor", 'v' , 0, N_("PCI vendor ID to look for"), 0, ARG_TYPE_STRING},

+    {"product", 'p' , 0, N_("PCI product ID to look for"), 0, ARG_TYPE_STRING},
+    {"subvendor", 's' , 0, N_("PCI subsystem vendor ID to look for"), 0, ARG_TYPE_STRING},
+    {"subproduct", 't' , 0, N_("PCI subsystem product ID to look for"), 0, ARG_TYPE_STRING},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+static grub_uint32_t pcimask, pcisubmask;
+static grub_pci_id_t pcisearch;
+static grub_pci_id_t pcisubsearch;
+

+static int
+grub_testpci_iter (grub_pci_device_t dev __attribute__ ((unused)),
+		   grub_pci_id_t pciid,
+		   void *data)
+{
+  grub_pci_address_t addr;
+  grub_uint32_t subsystem;
+  int *found = data;
+
+  if ((pciid & pcimask) != pcisearch) {
+    return 0;
+  }
+
+  if (pcisubmask != 0) {
+    addr = grub_pci_make_address (dev, GRUB_PCI_REG_SUBVENDOR);
+    subsystem = grub_pci_read (addr);
+    if ((subsystem & pcisubmask) != pcisubsearch) {
+      return 0;
+    }
+  }
+
+  *found = 1;
+  return 1;
+}
+
+static grub_err_t
+grub_cmd_testpci (grub_extcmd_context_t ctxt,
+		  int argc __attribute__ ((unused)),
+		  char **args __attribute__ ((unused)))

+{
+  struct grub_arg_list *state = ctxt->state;
+  int found = 0;
+
+  pcimask = pcisubmask = pcisearch = pcisubsearch = 0;
+
+  if (state[0].set) {
+    pcisearch |= grub_strtoull (state[0].arg, 0, 16);
+    if (grub_errno != GRUB_ERR_NONE) {
+      return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("Couldn't parse PCI vendor ID"));

+    }
+    pcimask |= 0xFFFF;
+  }
+
+  if (state[1].set) {
+    pcisearch |= (grub_strtoull (state[1].arg, 0, 16) << 16);
+    if (grub_errno != GRUB_ERR_NONE) {
+      return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("Couldn't parse PCI product ID"));

+    }
+    pcimask |= 0xFFFF0000;
+  }
+
+  if (state[2].set) {
+    pcisubsearch |= grub_strtoull (state[2].arg, 0, 16);
+    if (grub_errno != GRUB_ERR_NONE) {
+      return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("Couldn't parse PCI subsystem vendor ID"));

+    }
+    pcisubmask |= 0xFFFF;
+  }
+
+  if (state[3].set) {
+    pcisubsearch |= (grub_strtoull (state[3].arg, 0, 16) << 16);
+    if (grub_errno != GRUB_ERR_NONE) {
+      return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("Couldn't parse PCI subsystem product ID"));

+    }
+    pcisubmask |= 0xFFFF0000;
+  }
+
+  grub_pci_iterate (grub_testpci_iter, &found);
+
+  return found ? GRUB_ERR_NONE : grub_error (GRUB_ERR_TEST_FAILURE, "false");
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(testpci)
+{
+  cmd = grub_register_extcmd ("testpci", grub_cmd_testpci, 0,
+			      N_("[--vendor=VENDORID] [--product=PRODUCTID] "
+				 "[--subvendor=VENDORID] "
+				 "[--subproduct=PRODUCTID]"),
+			      N_("Test for PCI device existence."),
+			      options);
+}
+
+GRUB_MOD_FINI(testpci)
+{
+  grub_unregister_extcmd (cmd);
+}
 
-----


Add testpci command

Jonathan McDowell

Seth Goldberg

Seth Goldberg

Andrey Borzenkov

Vladimir 'φ-coder/phcoder' Serbinenko

Vladimir 'φ-coder/phcoder' Serbinenko

Jonathan McDowell

Andrey Borzenkov

Jonathan McDowell

Vladimir 'φ-coder/phcoder' Serbinenko

Jonathan McDowell

Andrey Borzenkov

Vladimir 'φ-coder/phcoder' Serbinenko

Andrey Borzenkov

Jonathan McDowell

Vladimir 'φ-coder/phcoder' Serbinenko