+2010-09-19 Vladimir Serbinenko <phcoder@gmail.com>
+
+ * grub-core/commands/i386/cmostest.c (+parse_args): New function.
+ (grub_cmd_cmosclean): Likewise.
+ (GRUB_MOD_INIT): Register command cmosclean.
+ * util/grub-mkconfig.in: Export GRUB_BUTTON_CMOS_CLEAN.
+ * util/grub.d/00_header.in: Handle GRUB_BUTTON_CMOS_CLEAN.
+
2010-09-18 Carles Pina i Estany <carles@pina.cat>
2010-09-18 Aleš Nesrsta <starous@volny.cz>
2010-09-18 Vladimir Serbinenko <phcoder@gmail.com>
#include <grub/cmos.h>
static grub_err_t
-grub_cmd_cmostest (struct grub_command *cmd __attribute__ ((unused)),
- int argc, char *argv[])
+parse_args (int argc, char *argv[], int *byte, int *bit)
{
- int byte, bit;
char *rest;
if (argc != 1)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "Address required.");
- byte = grub_strtoul (argv[0], &rest, 0);
+ *byte = grub_strtoul (argv[0], &rest, 0);
if (*rest != ':')
return grub_error (GRUB_ERR_BAD_ARGUMENT, "Address required.");
- bit = grub_strtoul (rest + 1, 0, 0);
+ *bit = grub_strtoul (rest + 1, 0, 0);
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cmd_cmostest (struct grub_command *cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+{
+ int byte, bit;
+ grub_err_t err;
+
+ err = parse_args (argc, argv, &byte, &bit);
+ if (err)
+ return err;
if (grub_cmos_read (byte) & (1 << bit))
return GRUB_ERR_NONE;
return grub_error (GRUB_ERR_TEST_FAILURE, "false");
}
-static grub_command_t cmd;
+static grub_err_t
+grub_cmd_cmosclean (struct grub_command *cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+{
+ int byte, bit;
+ grub_err_t err;
+
+ err = parse_args (argc, argv, &byte, &bit);
+ if (err)
+ return err;
+
+ grub_cmos_write (byte, grub_cmos_read (byte) & (~(1 << bit)));
+ return GRUB_ERR_NONE;
+}
+
+static grub_command_t cmd, cmd_clean;
\f
GRUB_MOD_INIT(cmostest)
cmd = grub_register_command ("cmostest", grub_cmd_cmostest,
"cmostest BYTE:BIT",
"Test bit at BYTE:BIT in CMOS.");
+ cmd_clean = grub_register_command ("cmosclean", grub_cmd_cmosclean,
+ "cmosclean BYTE:BIT",
+ "Clean bit at BYTE:BIT in CMOS.");
}
GRUB_MOD_FINI(cmostest)
{
grub_unregister_command (cmd);
+ grub_unregister_command (cmd_clean);
}