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authorJustus Winter <4winter@informatik.uni-hamburg.de>2014-05-03 01:33:14 +0200
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2014-07-06 15:46:04 +0200
commitc031b41b783cc99c0bd5aac7d14c1d6e34520397 (patch)
treed05065f96429bfc620ff39a536cc57b01e082c0e /i386/grub/cpu
parent3bb2b68bc84b9cb11aae7b46eeec3c5eb3363f54 (diff)
i386: use ACPI to power off the machine
This is a mostly verbatim copy of acpihalt.c from GRUB2 with a little bit of glue code. * i386/Makefrag.am (libkernel_a_SOURCES): Add the new files. * i386/grub/acpi.h: Verbatim copy from GRUB2. * i386/grub/compiler.h: Likewise. * i386/grub/cpu/io.h: Likewise. * i386/grub/cpu/time.h: Likewise. * i386/grub/cpu/types.h: Likewise. * i386/grub/err.h: Likewise. * i386/grub/misc.h: Likewise. * i386/grub/mm.h: Likewise. * i386/grub/symbol.h: Likewise. * i386/grub/time.h: Likewise. * i386/grub/types.h: Likewise. * i386/i386at/acpi.c: Likewise. * i386/i386at/acpihalt.c: Likewise. (grub_acpi_halt): Map physical addresses. * i386/i386at/acpihalt.h: New file. * i386/grub/glue.h: Some glue macros. * i386/grub/i18n.h: Stub out i18n. * i386/i386at/grub_glue.c: Some glue code. * i386/i386at/model_dep.c (halt_all_cpus): Use grub_acpi_halt.
Diffstat (limited to 'i386/grub/cpu')
-rw-r--r--i386/grub/cpu/io.h72
-rw-r--r--i386/grub/cpu/time.h29
-rw-r--r--i386/grub/cpu/types.h33
3 files changed, 134 insertions, 0 deletions
diff --git a/i386/grub/cpu/io.h b/i386/grub/cpu/io.h
new file mode 100644
index 0000000..ae12a3e
--- /dev/null
+++ b/i386/grub/cpu/io.h
@@ -0,0 +1,72 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 1996,2000,2002,2007 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/>.
+ */
+
+/* Based on sys/io.h from GNU libc. */
+
+#ifndef GRUB_IO_H
+#define GRUB_IO_H 1
+
+typedef unsigned short int grub_port_t;
+
+static __inline unsigned char
+grub_inb (unsigned short int port)
+{
+ unsigned char _v;
+
+ __asm__ __volatile__ ("inb %w1,%0":"=a" (_v):"Nd" (port));
+ return _v;
+}
+
+static __inline unsigned short int
+grub_inw (unsigned short int port)
+{
+ unsigned short _v;
+
+ __asm__ __volatile__ ("inw %w1,%0":"=a" (_v):"Nd" (port));
+ return _v;
+}
+
+static __inline unsigned int
+grub_inl (unsigned short int port)
+{
+ unsigned int _v;
+
+ __asm__ __volatile__ ("inl %w1,%0":"=a" (_v):"Nd" (port));
+ return _v;
+}
+
+static __inline void
+grub_outb (unsigned char value, unsigned short int port)
+{
+ __asm__ __volatile__ ("outb %b0,%w1": :"a" (value), "Nd" (port));
+}
+
+static __inline void
+grub_outw (unsigned short int value, unsigned short int port)
+{
+ __asm__ __volatile__ ("outw %w0,%w1": :"a" (value), "Nd" (port));
+
+}
+
+static __inline void
+grub_outl (unsigned int value, unsigned short int port)
+{
+ __asm__ __volatile__ ("outl %0,%w1": :"a" (value), "Nd" (port));
+}
+
+#endif /* _SYS_IO_H */
diff --git a/i386/grub/cpu/time.h b/i386/grub/cpu/time.h
new file mode 100644
index 0000000..842882c
--- /dev/null
+++ b/i386/grub/cpu/time.h
@@ -0,0 +1,29 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2007 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/>.
+ */
+
+#ifndef KERNEL_CPU_TIME_HEADER
+#define KERNEL_CPU_TIME_HEADER 1
+
+static __inline void
+grub_cpu_idle (void)
+{
+ /* FIXME: this can't work until we handle interrupts. */
+/* __asm__ __volatile__ ("hlt"); */
+}
+
+#endif /* ! KERNEL_CPU_TIME_HEADER */
diff --git a/i386/grub/cpu/types.h b/i386/grub/cpu/types.h
new file mode 100644
index 0000000..c20063f
--- /dev/null
+++ b/i386/grub/cpu/types.h
@@ -0,0 +1,33 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2002,2006,2007 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/>.
+ */
+
+#ifndef GRUB_TYPES_CPU_HEADER
+#define GRUB_TYPES_CPU_HEADER 1
+
+/* The size of void *. */
+#define GRUB_TARGET_SIZEOF_VOID_P 4
+
+/* The size of long. */
+#define GRUB_TARGET_SIZEOF_LONG 4
+
+/* i386 is little-endian. */
+#undef GRUB_TARGET_WORDS_BIGENDIAN
+
+#define GRUB_HAVE_UNALIGNED_ACCESS 1
+
+#endif /* ! GRUB_TYPES_CPU_HEADER */