diff options
Diffstat (limited to 'drivers/char/tpm/tpm-dev.h')
| -rw-r--r-- | drivers/char/tpm/tpm-dev.h | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/char/tpm/tpm-dev.h b/drivers/char/tpm/tpm-dev.h index b24cfb4d3ee1..a126b575cb8c 100644 --- a/drivers/char/tpm/tpm-dev.h +++ b/drivers/char/tpm/tpm-dev.h @@ -2,27 +2,33 @@ #ifndef _TPM_DEV_H #define _TPM_DEV_H +#include <linux/poll.h> #include "tpm.h" struct file_priv { struct tpm_chip *chip; + struct tpm_space *space; - /* Data passed to and from the tpm via the read/write calls */ - size_t data_pending; + /* Holds the amount of data passed or an error code from async op */ + ssize_t data_pending; struct mutex buffer_mutex; struct timer_list user_read_timer; /* user needs to claim result */ - struct work_struct work; + struct work_struct timeout_work; + struct work_struct async_work; + wait_queue_head_t async_wait; + bool command_enqueued; u8 data_buffer[TPM_BUFSIZE]; }; void tpm_common_open(struct file *file, struct tpm_chip *chip, - struct file_priv *priv); + struct file_priv *priv, struct tpm_space *space); 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); + size_t size, loff_t *off); +__poll_t tpm_common_poll(struct file *file, poll_table *wait); +void tpm_common_release(struct file *file, struct file_priv *priv); #endif |