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tpm_tis: Introduce durations sysfs entry

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Display the TPM's command timeouts in a 'durations' sysfs entry. Display
the entries as having been adjusted when they were scaled due to their values
being reported in milliseconds rather than microseconds.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Tested-by: Guillaume Chazarain <guichaz@gmail.com>
Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
This commit is contained in:
Stefan Berger
2011-03-30 12:13:25 -04:00
committed by Rajiv Andrade
parent e934acca1e
commit 04ab2293bb
3 changed files with 21 additions and 1 deletions
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3
drivers/char/tpm/tpm.h
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@@ -56,6 +56,8 @@ extern ssize_t tpm_show_owned(struct device *, struct device_attribute *attr,
char *);
extern ssize_t tpm_show_temp_deactivated(struct device *,
struct device_attribute *attr, char *);
extern ssize_t tpm_show_durations(struct device *,
struct device_attribute *attr, char *);
struct tpm_chip;
@@ -82,6 +84,7 @@ struct tpm_vendor_specific {
int locality;
unsigned long timeout_a, timeout_b, timeout_c, timeout_d; /* jiffies */
unsigned long duration[3]; /* jiffies */
bool duration_adjusted;
wait_queue_head_t read_queue;
wait_queue_head_t int_queue;