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path: root/i/pc104/initrd/conf/busybox/console-tools/loadkmap.c
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Diffstat (limited to 'i/pc104/initrd/conf/busybox/console-tools/loadkmap.c')
-rw-r--r--i/pc104/initrd/conf/busybox/console-tools/loadkmap.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/i/pc104/initrd/conf/busybox/console-tools/loadkmap.c b/i/pc104/initrd/conf/busybox/console-tools/loadkmap.c
new file mode 100644
index 0000000..a141435
--- /dev/null
+++ b/i/pc104/initrd/conf/busybox/console-tools/loadkmap.c
@@ -0,0 +1,62 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini loadkmap implementation for busybox
+ *
+ * Copyright (C) 1998 Enrique Zanardi <ezanardi@ull.es>
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ *
+ */
+
+#include "busybox.h"
+
+#define BINARY_KEYMAP_MAGIC "bkeymap"
+
+/* From <linux/kd.h> */
+struct kbentry {
+ unsigned char kb_table;
+ unsigned char kb_index;
+ unsigned short kb_value;
+};
+/* sets one entry in translation table */
+#define KDSKBENT 0x4B47
+
+/* From <linux/keyboard.h> */
+#define NR_KEYS 128
+#define MAX_NR_KEYMAPS 256
+
+int loadkmap_main(int argc, char **argv);
+int loadkmap_main(int argc, char **argv)
+{
+ struct kbentry ke;
+ int i, j, fd;
+ uint16_t ibuff[NR_KEYS];
+ char flags[MAX_NR_KEYMAPS];
+ char buff[7];
+
+ if (argc != 1)
+ bb_show_usage();
+
+ fd = xopen(CURRENT_VC, O_RDWR);
+
+ xread(0, buff, 7);
+ if (strncmp(buff, BINARY_KEYMAP_MAGIC, 7))
+ bb_error_msg_and_die("this is not a valid binary keymap");
+
+ xread(0, flags, MAX_NR_KEYMAPS);
+
+ for (i = 0; i < MAX_NR_KEYMAPS; i++) {
+ if (flags[i] == 1) {
+ xread(0, ibuff, NR_KEYS * sizeof(uint16_t));
+ for (j = 0; j < NR_KEYS; j++) {
+ ke.kb_index = j;
+ ke.kb_table = i;
+ ke.kb_value = ibuff[j];
+ ioctl(fd, KDSKBENT, &ke);
+ }
+ }
+ }
+
+ if (ENABLE_FEATURE_CLEAN_UP) close(fd);
+ return 0;
+}