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56 #ifndef _SCI_BASE_STATE_MACHINE_H_
57 #define _SCI_BASE_STATE_MACHINE_H_
59 #include <linux/string.h>
62 * This file contains all structures, constants, or method declarations common
63 * to all state machines defined in SCI.
69 #include "sci_base_state.h"
73 * SET_STATE_HANDLER() -
75 * This macro simply provides simplified retrieval of an objects state handler.
77 #define SET_STATE_HANDLER(object, table, state) \
78 (object)->state_handlers = &(table)[(state)]
81 * struct sci_base_state_machine - This structure defines the fields common to
86 struct sci_base_state_machine
{
88 * This field points to the start of the state machine's state table.
90 const struct sci_base_state
*state_table
;
93 * This field points to the object to which this state machine is
94 * associated. It serves as a cookie to be provided to the state
97 void *state_machine_owner
;
100 * This field simply indicates the state value for the state machine's
103 u32 initial_state_id
;
106 * This field indicates the current state of the state machine.
108 u32 current_state_id
;
111 * This field indicates the previous state of the state machine.
113 u32 previous_state_id
;
118 * ******************************************************************************
119 * * P R O T E C T E D M E T H O D S
120 * ****************************************************************************** */
122 void sci_base_state_machine_construct(
123 struct sci_base_state_machine
*this_state_machine
,
124 void *state_machine_owner
,
125 const struct sci_base_state
*state_table
,
128 void sci_base_state_machine_start(
129 struct sci_base_state_machine
*this_state_machine
);
131 void sci_base_state_machine_stop(
132 struct sci_base_state_machine
*this_state_machine
);
134 void sci_base_state_machine_change_state(
135 struct sci_base_state_machine
*this_state_machine
,
138 u32
sci_base_state_machine_get_state(
139 struct sci_base_state_machine
*this_state_machine
);
141 #endif /* _SCI_BASE_STATE_MACHINE_H_ */