diff options
Diffstat (limited to 'include/linux/rfkill.h')
| -rw-r--r-- | include/linux/rfkill.h | 46 |
1 files changed, 43 insertions, 3 deletions
diff --git a/include/linux/rfkill.h b/include/linux/rfkill.h index e3ab21d7fc7f..c5f6e54ec6ae 100644 --- a/include/linux/rfkill.h +++ b/include/linux/rfkill.h @@ -34,26 +34,37 @@ * RFKILL_TYPE_BLUETOOTH: switch is on a bluetooth device. * RFKILL_TYPE_UWB: switch is on a ultra wideband device. * RFKILL_TYPE_WIMAX: switch is on a WiMAX device. + * RFKILL_TYPE_WWAN: switch is on a wireless WAN device. */ enum rfkill_type { RFKILL_TYPE_WLAN , RFKILL_TYPE_BLUETOOTH, RFKILL_TYPE_UWB, RFKILL_TYPE_WIMAX, + RFKILL_TYPE_WWAN, RFKILL_TYPE_MAX, }; enum rfkill_state { - RFKILL_STATE_OFF = 0, - RFKILL_STATE_ON = 1, + RFKILL_STATE_SOFT_BLOCKED = 0, /* Radio output blocked */ + RFKILL_STATE_UNBLOCKED = 1, /* Radio output allowed */ + RFKILL_STATE_HARD_BLOCKED = 2, /* Output blocked, non-overrideable */ }; +/* + * These are DEPRECATED, drivers using them should be verified to + * comply with the rfkill usage guidelines in Documentation/rfkill.txt + * and then converted to use the new names for rfkill_state + */ +#define RFKILL_STATE_OFF RFKILL_STATE_SOFT_BLOCKED +#define RFKILL_STATE_ON RFKILL_STATE_UNBLOCKED + /** * struct rfkill - rfkill control structure. * @name: Name of the switch. * @type: Radio type which the button controls, the value stored * here should be a value from enum rfkill_type. - * @state: State of the switch (on/off). + * @state: State of the switch, "UNBLOCKED" means radio can operate. * @user_claim_unsupported: Whether the hardware supports exclusive * RF-kill control by userspace. Set this before registering. * @user_claim: Set when the switch is controlled exlusively by userspace. @@ -61,6 +72,12 @@ enum rfkill_state { * @data: Pointer to the RF button drivers private data which will be * passed along when toggling radio state. * @toggle_radio(): Mandatory handler to control state of the radio. + * only RFKILL_STATE_SOFT_BLOCKED and RFKILL_STATE_UNBLOCKED are + * valid parameters. + * @get_state(): handler to read current radio state from hardware, + * may be called from atomic context, should return 0 on success. + * Either this handler OR judicious use of rfkill_force_state() is + * MANDATORY for any driver capable of RFKILL_STATE_HARD_BLOCKED. * @led_trigger: A LED trigger for this button's LED. * @dev: Device structure integrating the switch into device tree. * @node: Used to place switch into list of all switches known to the @@ -80,6 +97,7 @@ struct rfkill { void *data; int (*toggle_radio)(void *data, enum rfkill_state state); + int (*get_state)(void *data, enum rfkill_state *state); #ifdef CONFIG_RFKILL_LEDS struct led_trigger led_trigger; @@ -95,6 +113,21 @@ void rfkill_free(struct rfkill *rfkill); int rfkill_register(struct rfkill *rfkill); void rfkill_unregister(struct rfkill *rfkill); +int rfkill_force_state(struct rfkill *rfkill, enum rfkill_state state); + +/** + * rfkill_state_complement - return complementar state + * @state: state to return the complement of + * + * Returns RFKILL_STATE_SOFT_BLOCKED if @state is RFKILL_STATE_UNBLOCKED, + * returns RFKILL_STATE_UNBLOCKED otherwise. + */ +static inline enum rfkill_state rfkill_state_complement(enum rfkill_state state) +{ + return (state == RFKILL_STATE_UNBLOCKED) ? + RFKILL_STATE_SOFT_BLOCKED : RFKILL_STATE_UNBLOCKED; +} + /** * rfkill_get_led_name - Get the LED trigger name for the button's LED. * This function might return a NULL pointer if registering of the @@ -110,4 +143,11 @@ static inline char *rfkill_get_led_name(struct rfkill *rfkill) #endif } +/* rfkill notification chain */ +#define RFKILL_STATE_CHANGED 0x0001 /* state of a normal rfkill + switch has changed */ + +int register_rfkill_notifier(struct notifier_block *nb); +int unregister_rfkill_notifier(struct notifier_block *nb); + #endif /* RFKILL_H */ |