include/linux/counter.h

1 /* SPDX-License-Identifier: GPL-2.0 */
39  * struct counter_comp - Counter component node
41  * @name:		device-specific component name
42  * @priv:		component-relevant data
43  * @action_read:	Synapse action mode read callback. The read value of the
46  * @device_u8_read:	Device u8 component read callback. The read value of the
49  * @count_u8_read:	Count u8 component read callback. The read value of the
52  * @signal_u8_read:	Signal u8 component read callback. The read value of the
55  * @device_u32_read:	Device u32 component read callback. The read value of
58  * @count_u32_read:	Count u32 component read callback. The read value of the
61  * @signal_u32_read:	Signal u32 component read callback. The read value of
64  * @device_u64_read:	Device u64 component read callback. The read value of
67  * @count_u64_read:	Count u64 component read callback. The read value of the
70  * @signal_u64_read:	Signal u64 component read callback. The read value of
73  * @signal_array_u32_read:	Signal u32 array component read callback. The
76  *				parameter. The read value of the respective
79  * @device_array_u64_read:	Device u64 array component read callback. The
82  *				parameter. The read value of the respective
85  * @count_array_u64_read:	Count u64 array component read callback. The
88  *				parameter. The read value of the respective
91  * @signal_array_u64_read:	Signal u64 array component read callback. The
94  *				parameter. The read value of the respective
97  * @action_write:	Synapse action mode write callback. The write value of
100  * @device_u8_write:	Device u8 component write callback. The write value of
103  * @count_u8_write:	Count u8 component write callback. The write value of
106  * @signal_u8_write:	Signal u8 component write callback. The write value of
109  * @device_u32_write:	Device u32 component write callback. The write value of
112  * @count_u32_write:	Count u32 component write callback. The write value of
115  * @signal_u32_write:	Signal u32 component write callback. The write value of
118  * @device_u64_write:	Device u64 component write callback. The write value of
121  * @count_u64_write:	Count u64 component write callback. The write value of
124  * @signal_u64_write:	Signal u64 component write callback. The write value of
127  * @signal_array_u32_write:	Signal u32 array component write callback. The
130  *				parameter. The write value of the respective
133  * @device_array_u64_write:	Device u64 array component write callback. The
136  *				parameter. The write value of the respective
139  * @count_array_u64_write:	Count u64 array component write callback. The
142  *				parameter. The write value of the respective
145  * @signal_array_u64_write:	Signal u64 array component write callback. The
148  *				parameter. The write value of the respective
227  * struct counter_signal - Counter Signal node
228  * @id:		unique ID used to identify the Signal
229  * @name:	device-specific Signal name
242  * struct counter_synapse - Counter Synapse node
245  * @signal:		pointer to the associated Signal
255  * struct counter_count - Counter Count node
256  * @id:			unique ID used to identify the Count
257  * @name:		device-specific Count name
280  * struct counter_event_node - Counter Event node
284  * @comp_list:	list of components to watch when event triggers
294  * struct counter_ops - Callbacks from driver
295  * @signal_read:	optional read callback for Signals. The read level of
298  * @count_read:		read callback for Counts. The read value of the
301  * @count_write:	optional write callback for Counts. The write value for
304  * @function_read:	read callback the Count function modes. The read
307  * @function_write:	optional write callback for Count function modes. The
308  *			function mode to write for the respective Count is
310  * @action_read:	optional read callback the Synapse action modes. The
311  *			read action mode of the respective Synapse should be
313  * @action_write:	optional write callback for Synapse action modes. The
314  *			action mode to write for the respective Synapse is
316  * @events_configure:	optional write callback to configure events. The list of
319  * @watch_validate:	optional callback to validate a watch. The Counter
352  * struct counter_device - Counter data structure
366  * @events_list_lock:	lock to protect Counter events list operations
368  * @n_events_list_lock:	lock to protect Counter next events list operations
370  * @events_wait:	wait queue to allow blocking reads of Counter events
371  * @events_in_lock:	lock to protect Counter events queue in operations
372  * @events_out_lock:	lock to protect Counter events queue out operations
373  * @ops_exist_lock:	lock to prevent use during removal