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authorH. Peter Anvin <hpa@zytor.com>2009-02-03 21:41:21 -0800
committerH. Peter Anvin <hpa@zytor.com>2009-02-03 21:41:21 -0800
commitfd3b1f970c6385d178762fb5cfe922a2930d0cad (patch)
treee33ac5715b258a799e35bc821725947e57aee721 /com32/lib
parentdbc9c2da4332a308fd70a1fe055528204e0bb789 (diff)
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Add comboot interface to access the keyboard remapping table
Add a comboot interface to access the keyboard remapping table, which can be used for either querying or changing the keyboard map.
Diffstat (limited to 'com32/lib')
-rw-r--r--com32/lib/Makefile1
-rw-r--r--com32/lib/syslinux/keyboard.c44
2 files changed, 45 insertions, 0 deletions
diff --git a/com32/lib/Makefile b/com32/lib/Makefile
index 02799040..91405a06 100644
--- a/com32/lib/Makefile
+++ b/com32/lib/Makefile
@@ -74,6 +74,7 @@ LIBOBJS = \
syslinux/idle.o syslinux/reboot.o \
syslinux/features.o syslinux/config.o syslinux/serial.o \
syslinux/ipappend.o syslinux/dsinfo.o syslinux/version.o \
+ syslinux/keyboard.o \
\
syslinux/addlist.o syslinux/freelist.o syslinux/memmap.o \
syslinux/movebits.o syslinux/shuffle.o syslinux/shuffle_pm.o \
diff --git a/com32/lib/syslinux/keyboard.c b/com32/lib/syslinux/keyboard.c
new file mode 100644
index 00000000..2635dfb9
--- /dev/null
+++ b/com32/lib/syslinux/keyboard.c
@@ -0,0 +1,44 @@
+/* ----------------------------------------------------------------------- *
+ *
+ * Copyright 2009 H. Peter Anvin - All Rights Reserved
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall
+ * be included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------- */
+
+#include <syslinux/keyboard.h>
+#include <com32.h>
+
+struct syslinux_keyboard_map __syslinux_keyboard_map;
+
+void __constructor __syslinux_get_keyboard_map(void)
+{
+ static com32sys_t reg;
+
+ reg.eax.w[0] = 0x001e;
+ __intcall(0x22, &reg, &reg);
+ if (!(reg.eflags.l & EFLAGS_CF)) {
+ __syslinux_keyboard_map.version = reg.eax.w[0];
+ __syslinux_keyboard_map.length = reg.edx.w[0];
+ __syslinux_keyboard_map.map = MK_PTR(reg.es, reg.ebx.w[0]);
+ }
+}