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libpci initial stuff

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This commit is contained in:
phcoder 2009-10-14 10:11:59 +02:00
parent bf7f7a18f4
commit 3affd0ece8
11 changed files with 147 additions and 37 deletions
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2
Makefile.in
View file

@ -100,12 +100,14 @@ endif
AWK = @AWK@
LIBCURSES = @LIBCURSES@
LIBUSB = @LIBUSB@
LIBPCI = @LIBPCI@
YACC = @YACC@
UNIFONT_BDF = @UNIFONT_BDF@
# Options.
enable_grub_emu = @enable_grub_emu@
enable_grub_emu_usb = @enable_grub_emu_usb@
enable_grub_emu_pci = @enable_grub_emu_pci@
enable_grub_fstest = @enable_grub_fstest@
enable_grub_pe2elf = @enable_grub_pe2elf@
enable_grub_mkfont = @enable_grub_mkfont@

23
bus/pci.c
View file

@ -21,41 +21,40 @@
#include <grub/pci.h>
grub_pci_address_t
grub_pci_make_address (int bus, int device, int function, int reg)
grub_pci_make_address (grub_pci_device_t dev, int reg)
{
return (1 << 31) | (bus << 16) | (device << 11) | (function << 8) | (reg << 2);
return (1 << 31) | (dev.bus << 16) | (dev.device << 11)
| (dev.function << 8) | (reg << 2);
}
void
grub_pci_iterate (grub_pci_iteratefunc_t hook)
{
int bus;
int dev;
int func;
grub_pci_device_t dev;
grub_pci_address_t addr;
grub_pci_id_t id;
grub_uint32_t hdr;
for (bus = 0; bus < 256; bus++)
for (dev.bus = 0; dev.bus < 256; dev.bus++)
{
for (dev = 0; dev < 32; dev++)
for (dev.device = 0; dev.device < 32; dev.device++)
{
for (func = 0; func < 8; func++)
for (dev.function = 0; dev.function < 8; dev.function++)
{
addr = grub_pci_make_address (bus, dev, func, 0);
addr = grub_pci_make_address (dev, 0);
id = grub_pci_read (addr);
/* Check if there is a device present. */
if (id >> 16 == 0xFFFF)
continue;
if (hook (bus, dev, func, id))
if (hook (dev, id))
return;
/* Probe only func = 0 if the device if not multifunction */
if (func == 0)
if (dev.function == 0)
{
addr = grub_pci_make_address (bus, dev, func, 3);
addr = grub_pci_make_address (dev, 3);
hdr = grub_pci_read (addr);
if (!(hdr & 0x800000))
break;

6
bus/usb/ohci.c
View file

@ -113,7 +113,7 @@ grub_ohci_writereg32 (struct grub_ohci *o,
/* Iterate over all PCI devices. Determine if a device is an OHCI
controller. If this is the case, initialize it. */
static int NESTED_FUNC_ATTR
grub_ohci_pci_iter (int bus, int device, int func,
grub_ohci_pci_iter (grub_pci_device_t dev,
grub_pci_id_t pciid __attribute__((unused)))
{
grub_uint32_t class_code;
@ -126,7 +126,7 @@ grub_ohci_pci_iter (int bus, int device, int func,
grub_uint32_t revision;
grub_uint32_t frame_interval;
addr = grub_pci_make_address (bus, device, func, 2);
addr = grub_pci_make_address (dev, 2);
class_code = grub_pci_read (addr) >> 8;
interf = class_code & 0xFF;
@ -138,7 +138,7 @@ grub_ohci_pci_iter (int bus, int device, int func,
return 0;
/* Determine IO base address. */
addr = grub_pci_make_address (bus, device, func, 4);
addr = grub_pci_make_address (dev, 4);
base = grub_pci_read (addr);
#if 0

6
bus/usb/uhci.c
View file

@ -138,7 +138,7 @@ grub_uhci_portstatus (grub_usb_controller_t dev,
/* Iterate over all PCI devices. Determine if a device is an UHCI
controller. If this is the case, initialize it. */
static int NESTED_FUNC_ATTR
grub_uhci_pci_iter (int bus, int device, int func,
grub_uhci_pci_iter (grub_pci_device_t dev,
grub_pci_id_t pciid __attribute__((unused)))
{
grub_uint32_t class_code;
@ -151,7 +151,7 @@ grub_uhci_pci_iter (int bus, int device, int func,
struct grub_uhci *u;
int i;
addr = grub_pci_make_address (bus, device, func, 2);
addr = grub_pci_make_address (dev, 2);
class_code = grub_pci_read (addr) >> 8;
interf = class_code & 0xFF;
@ -163,7 +163,7 @@ grub_uhci_pci_iter (int bus, int device, int func,
return 0;
/* Determine IO base address. */
addr = grub_pci_make_address (bus, device, func, 8);
addr = grub_pci_make_address (dev, 8);
base = grub_pci_read (addr);
/* Stop if there is no IO space base address defined. */
if (! (base & 1))

11
commands/lspci.c
View file

@ -115,15 +115,16 @@ grub_pci_get_class (int class, int subclass)
}
static int NESTED_FUNC_ATTR
grub_lspci_iter (int bus, int dev, int func, grub_pci_id_t pciid)
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;
grub_printf ("%02x:%02x.%x %04x:%04x", bus, dev, func, pciid & 0xFFFF,
pciid >> 16);
addr = grub_pci_make_address (bus, dev, func, 2);
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, 2);
class = grub_pci_read (addr);
/* Lookup the class name, if there isn't a specific one,
@ -142,6 +143,8 @@ grub_lspci_iter (int bus, int dev, int func, grub_pci_id_t pciid)
grub_printf ("\n");
grub_pci_close (dev);
return 0;
}

7
conf/i386-pc.rmk
View file

@ -165,7 +165,12 @@ grub_emu_LDFLAGS = $(LIBCURSES)
ifeq ($(enable_grub_emu_usb), yes)
grub_emu_SOURCES += disk/usbms.c util/usb.c bus/usb/usb.c \
commands/usbtest.c
grub_emu_LDFLAGS += $(LIBCURSES) $(LIBUSB)
grub_emu_LDFLAGS += $(LIBUSB)
endif
ifeq ($(enable_grub_emu_pci), yes)
grub_emu_SOURCES += util/pci.c commands/lspci.c
grub_emu_LDFLAGS += $(LIBPCI)
endif
# Scripts.

11
configure.ac
View file

@ -499,6 +499,10 @@ AC_ARG_ENABLE([grub-emu],
AC_ARG_ENABLE([grub-emu-usb],
[AS_HELP_STRING([--enable-grub-emu-usb],
[build and install the `grub-emu' debugging utility with USB support (default=guessed)])])
AC_ARG_ENABLE([grub-emu-pci],
[AS_HELP_STRING([--enable-grub-emu-pci],
[build and install the `grub-emu' debugging utility with PCI support (potentially dangerous) (default=no)])])
if test x"$enable_grub_emu" = xno ; then
grub_emu_excuse="explicitly disabled"
fi
@ -541,7 +545,7 @@ AC_CHECK_LIB([usb], [usb_claim_interface], [LIBUSB="-lusb"],
AC_CHECK_HEADERS([usb.h], [],
[grub_emu_usb_excuse=["need libusb headers"]])
[fi]
if test x"enable_grub_emu_usb" = xyes && test x"$grub_emu_usb_excuse" != x ; then
if test x"$enable_grub_emu_usb" = xyes && test x"$grub_emu_usb_excuse" != x ; then
AC_MSG_ERROR([USB support for grub-emu was explicitly requested but can't be compiled])
fi
if test x"$grub_emu_usb_excuse" = x ; then
@ -550,8 +554,13 @@ else
enable_grub_emu_usb=no
fi
if test x"$enable_grub_emu_pci" != xyes ; then
enable_grub_emu_pci = no
fi
AC_SUBST([enable_grub_emu])
AC_SUBST([enable_grub_emu_usb])
AC_SUBST([enable_grub_emu_pci])
AC_ARG_ENABLE([grub-fstest],
[AS_HELP_STRING([--enable-grub-fstest],

11
disk/ata.c
View file

@ -388,7 +388,7 @@ grub_ata_device_initialize (int port, int device, int addr, int addr2)
}
static int NESTED_FUNC_ATTR
grub_ata_pciinit (int bus, int device, int func,
grub_ata_pciinit (grub_pci_device_t dev,
grub_pci_id_t pciid __attribute__((unused)))
{
static int compat_use[2] = { 0 };
@ -402,7 +402,7 @@ grub_ata_pciinit (int bus, int device, int func,
static int controller = 0;
/* Read class. */
addr = grub_pci_make_address (bus, device, func, 2);
addr = grub_pci_make_address (dev, 2);
class = grub_pci_read (addr);
/* Check if this class ID matches that of a PCI IDE Controller. */
@ -429,9 +429,9 @@ grub_ata_pciinit (int bus, int device, int func,
{
/* Read the BARs, which either contain a mmapped IO address
or the IO port address. */
addr = grub_pci_make_address (bus, device, func, 4 + 2 * i);
addr = grub_pci_make_address (dev, 4 + 2 * i);
bar1 = grub_pci_read (addr);
addr = grub_pci_make_address (bus, device, func, 5 + 2 * i);
addr = grub_pci_make_address (dev, 5 + 2 * i);
bar2 = grub_pci_read (addr);
/* Check if the BARs describe an IO region. */
@ -444,7 +444,8 @@ grub_ata_pciinit (int bus, int device, int func,
grub_dprintf ("ata",
"PCI dev (%d,%d,%d) compat=%d rega=0x%x regb=0x%x\n",
bus, device, func, compat, rega, regb);
grub_pci_get_bus (dev), grub_pci_get_device (dev),
grub_pci_get_function (dev), compat, rega, regb);
if (rega && regb)
{

5
include/grub/i386/pci.h
View file

@ -67,4 +67,9 @@ grub_pci_write_byte (grub_pci_address_t addr, grub_uint8_t data)
grub_outb (data, GRUB_PCI_DATA_REG + (addr & 3));
}
static inline void
grub_pci_close (grub_pci_device_t dev __attribute__ ((unused)))
{
}
#endif /* GRUB_CPU_PCI_H */

45
include/grub/pci.h
View file

@ -1,6 +1,6 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2008 Free Software Foundation, Inc.
* 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
@ -36,15 +36,44 @@
#define GRUB_PCI_ADDR_IO_MASK ~0x03
typedef grub_uint32_t grub_pci_id_t;
typedef int NESTED_FUNC_ATTR (*grub_pci_iteratefunc_t)
(int bus, int device, int func, grub_pci_id_t pciid);
typedef grub_uint32_t grub_pci_address_t;
grub_pci_address_t EXPORT_FUNC(grub_pci_make_address) (int bus, int device,
int function, int reg);
#ifdef GRUB_UTIL
#include <grub/pciutils.h>
#else
typedef grub_uint32_t grub_pci_address_t;
struct grub_pci_device
{
int bus;
int device;
int function;
};
typedef struct grub_pci_device grub_pci_device_t;
static inline int
grub_pci_get_bus (grub_pci_device_t dev)
{
return dev.bus;
}
static inline int
grub_pci_get_device (grub_pci_device_t dev)
{
return dev.device;
}
static inline int
grub_pci_get_function (grub_pci_device_t dev)
{
return dev.function;
}
#include <grub/cpu/pci.h>
#endif
typedef int NESTED_FUNC_ATTR (*grub_pci_iteratefunc_t)
(grub_pci_device_t dev, grub_pci_id_t pciid);
grub_pci_address_t EXPORT_FUNC(grub_pci_make_address) (grub_pci_device_t dev,
int reg);
void EXPORT_FUNC(grub_pci_iterate) (grub_pci_iteratefunc_t hook);
#include <grub/cpu/pci.h>
#endif /* GRUB_PCI_H */

57
util/pci.c Normal file
View file

@ -0,0 +1,57 @@
/* pci.c - Generic PCI interfaces. */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2007,2009 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>
struct pci_access *acc = 0;
grub_pci_address_t
grub_pci_make_address (grub_pci_device_t dev, int reg)
{
grub_pci_address_t ret;
ret.dev = dev;
ret.pos = reg << 2;
return ret;
}
void
grub_pci_close (grub_pci_device_t dev)
{
pci_free_dev (dev);
}
void
grub_pci_iterate (grub_pci_iteratefunc_t hook)
{
grub_pci_device_t cur;
for (cur = acc->devices; cur; cur = cur->next)
hook (cur, cur->vendor_id|(cur->device_id << 16));
}
GRUB_MOD_INIT (pci)
{
acc = pci_alloc ();
pci_init (acc);
}
GRUB_MOD_FINI (pci)
{
pci_cleanup (acc);
}