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Diffstat (limited to 'drivers/char/tpm/tpm.h')
-rw-r--r--drivers/char/tpm/tpm.h35
1 files changed, 28 insertions, 7 deletions
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index 917f727e6740..02c266aa2bf7 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -28,6 +28,12 @@
#include <linux/io.h>
#include <linux/tpm.h>
+enum tpm_const {
+ TPM_MINOR = 224, /* officially assigned */
+ TPM_BUFSIZE = 4096,
+ TPM_NUM_DEVICES = 256,
+};
+
enum tpm_timeout {
TPM_TIMEOUT = 5, /* msecs */
};
@@ -94,6 +100,7 @@ struct tpm_vendor_specific {
bool timeout_adjusted;
unsigned long duration[3]; /* jiffies */
bool duration_adjusted;
+ void *data;
wait_queue_head_t read_queue;
wait_queue_head_t int_queue;
@@ -269,6 +276,21 @@ struct tpm_pcrextend_in {
u8 hash[TPM_DIGEST_SIZE];
}__attribute__((packed));
+/* 128 bytes is an arbitrary cap. This could be as large as TPM_BUFSIZE - 18
+ * bytes, but 128 is still a relatively large number of random bytes and
+ * anything much bigger causes users of struct tpm_cmd_t to start getting
+ * compiler warnings about stack frame size. */
+#define TPM_MAX_RNG_DATA 128
+
+struct tpm_getrandom_out {
+ __be32 rng_data_len;
+ u8 rng_data[TPM_MAX_RNG_DATA];
+}__attribute__((packed));
+
+struct tpm_getrandom_in {
+ __be32 num_bytes;
+}__attribute__((packed));
+
typedef union {
struct tpm_getcap_params_out getcap_out;
struct tpm_readpubek_params_out readpubek_out;
@@ -277,6 +299,8 @@ typedef union {
struct tpm_pcrread_in pcrread_in;
struct tpm_pcrread_out pcrread_out;
struct tpm_pcrextend_in pcrextend_in;
+ struct tpm_getrandom_in getrandom_in;
+ struct tpm_getrandom_out getrandom_out;
} tpm_cmd_params;
struct tpm_cmd_t {
@@ -303,15 +327,12 @@ extern int tpm_pm_suspend(struct device *);
extern int tpm_pm_resume(struct device *);
extern int wait_for_tpm_stat(struct tpm_chip *, u8, unsigned long,
wait_queue_head_t *);
+
#ifdef CONFIG_ACPI
-extern struct dentry ** tpm_bios_log_setup(char *);
-extern void tpm_bios_log_teardown(struct dentry **);
+extern ssize_t sys_add_ppi(struct kobject *parent);
#else
-static inline struct dentry ** tpm_bios_log_setup(char *name)
-{
- return NULL;
-}
-static inline void tpm_bios_log_teardown(struct dentry **dir)
+static inline ssize_t sys_add_ppi(struct kobject *parent)
{
+ return 0;
}
#endif