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Diffstat (limited to 'drivers/char/tpm/tpm-dev.h')
-rw-r--r--drivers/char/tpm/tpm-dev.h27
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm-dev.h b/drivers/char/tpm/tpm-dev.h
new file mode 100644
index 000000000000..ff15cf719bad
--- /dev/null
+++ b/drivers/char/tpm/tpm-dev.h
@@ -0,0 +1,27 @@
+#ifndef _TPM_DEV_H
+#define _TPM_DEV_H
+
+#include "tpm.h"
+
+struct file_priv {
+ struct tpm_chip *chip;
+
+ /* Data passed to and from the tpm via the read/write calls */
+ atomic_t data_pending;
+ struct mutex buffer_mutex;
+
+ struct timer_list user_read_timer; /* user needs to claim result */
+ struct work_struct work;
+
+ u8 data_buffer[TPM_BUFSIZE];
+};
+
+void tpm_common_open(struct file *file, struct tpm_chip *chip,
+ struct file_priv *priv);
+ssize_t tpm_common_read(struct file *file, char __user *buf,
+ size_t size, loff_t *off);
+ssize_t tpm_common_write(struct file *file, const char __user *buf,
+ size_t size, loff_t *off, struct tpm_space *space);
+void tpm_common_release(struct file *file, struct file_priv *priv);
+
+#endif