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tpm: Cleanup tpm_continue_selftest

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Cleanup the tpm_continue_selftest function.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
This commit is contained in:
Stefan Berger 2011-11-11 12:57:03 -05:00 committed by Rajiv Andrade
parent 2b30a90f6c
commit d97c6ade59
2 changed files with 25 additions and 9 deletions
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32
drivers/char/tpm/tpm.c
View File

@ -611,15 +611,31 @@ int tpm_get_timeouts(struct tpm_chip *chip)
}
EXPORT_SYMBOL_GPL(tpm_get_timeouts);
void tpm_continue_selftest(struct tpm_chip *chip)
{
u8 data[] = {
0, 193, /* TPM_TAG_RQU_COMMAND */
0, 0, 0, 10, /* length */
0, 0, 0, 83, /* TPM_ORD_ContinueSelfTest */
};
#define TPM_ORD_CONTINUE_SELFTEST 83
#define CONTINUE_SELFTEST_RESULT_SIZE 10
tpm_transmit(chip, data, sizeof(data));
static struct tpm_input_header continue_selftest_header = {
.tag = TPM_TAG_RQU_COMMAND,
.length = cpu_to_be32(10),
.ordinal = cpu_to_be32(TPM_ORD_CONTINUE_SELFTEST),
};
/**
* tpm_continue_selftest -- run TPM's selftest
* @chip: TPM chip to use
*
* Returns 0 on success, < 0 in case of fatal error or a value > 0 representing
* a TPM error code.
*/
int tpm_continue_selftest(struct tpm_chip *chip)
{
int rc;
struct tpm_cmd_t cmd;
cmd.header.in = continue_selftest_header;
rc = transmit_cmd(chip, &cmd, CONTINUE_SELFTEST_RESULT_SIZE,
"continue selftest");
return rc;
}
EXPORT_SYMBOL_GPL(tpm_continue_selftest);

2
drivers/char/tpm/tpm.h
View File

@ -281,7 +281,7 @@ ssize_t tpm_getcap(struct device *, __be32, cap_t *, const char *);
extern int tpm_get_timeouts(struct tpm_chip *);
extern void tpm_gen_interrupt(struct tpm_chip *);
extern void tpm_continue_selftest(struct tpm_chip *);
extern int tpm_continue_selftest(struct tpm_chip *);
extern unsigned long tpm_calc_ordinal_duration(struct tpm_chip *, u32);
extern struct tpm_chip* tpm_register_hardware(struct device *,
const struct tpm_vendor_specific *);