diff options
Diffstat (limited to 'drivers/platform/cznic/turris-omnia-mcu.h')
| -rw-r--r-- | drivers/platform/cznic/turris-omnia-mcu.h | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/drivers/platform/cznic/turris-omnia-mcu.h b/drivers/platform/cznic/turris-omnia-mcu.h index 088541be3f4c..8473a3031917 100644 --- a/drivers/platform/cznic/turris-omnia-mcu.h +++ b/drivers/platform/cznic/turris-omnia-mcu.h @@ -12,11 +12,17 @@ #include <linux/gpio/driver.h> #include <linux/hw_random.h> #include <linux/if_ether.h> +#include <linux/interrupt.h> #include <linux/mutex.h> #include <linux/types.h> #include <linux/watchdog.h> #include <linux/workqueue.h> +enum { + OMNIA_MCU_CRYPTO_PUBLIC_KEY_LEN = 1 + 32, + OMNIA_MCU_CRYPTO_SIGNATURE_LEN = 64, +}; + struct i2c_client; struct rtc_device; @@ -55,6 +61,12 @@ struct rtc_device; * @wdt: watchdog driver structure * @trng: RNG driver structure * @trng_entropy_ready: RNG entropy ready completion + * @msg_signed: message signed completion + * @sign_lock: mutex to protect message signing state + * @sign_requested: flag indicating that message signing was requested but not completed + * @sign_err: message signing error number, filled in interrupt handler + * @signature: message signing signature, filled in interrupt handler + * @board_public_key: board public key, if stored in MCU */ struct omnia_mcu { struct i2c_client *client; @@ -88,12 +100,22 @@ struct omnia_mcu { struct hwrng trng; struct completion trng_entropy_ready; #endif + +#ifdef CONFIG_TURRIS_OMNIA_MCU_KEYCTL + struct completion msg_signed; + struct mutex sign_lock; + bool sign_requested; + int sign_err; + u8 signature[OMNIA_MCU_CRYPTO_SIGNATURE_LEN]; + u8 board_public_key[OMNIA_MCU_CRYPTO_PUBLIC_KEY_LEN]; +#endif }; #ifdef CONFIG_TURRIS_OMNIA_MCU_GPIO -extern const u8 omnia_int_to_gpio_idx[32]; extern const struct attribute_group omnia_mcu_gpio_group; int omnia_mcu_register_gpiochip(struct omnia_mcu *mcu); +int omnia_mcu_request_irq(struct omnia_mcu *mcu, u32 spec, + irq_handler_t thread_fn, const char *devname); #else static inline int omnia_mcu_register_gpiochip(struct omnia_mcu *mcu) { @@ -101,6 +123,15 @@ static inline int omnia_mcu_register_gpiochip(struct omnia_mcu *mcu) } #endif +#ifdef CONFIG_TURRIS_OMNIA_MCU_KEYCTL +int omnia_mcu_register_keyctl(struct omnia_mcu *mcu); +#else +static inline int omnia_mcu_register_keyctl(struct omnia_mcu *mcu) +{ + return 0; +} +#endif + #ifdef CONFIG_TURRIS_OMNIA_MCU_SYSOFF_WAKEUP extern const struct attribute_group omnia_mcu_poweroff_group; int omnia_mcu_register_sys_off_and_wakeup(struct omnia_mcu *mcu); |