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component: draw the state machine flow chart #131

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Merged
lgirdwood merged 1 commit into from Jul 20, 2018
Merged

component: draw the state machine flow chart #131

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31 changes: 23 additions & 8 deletions src/include/sof/audio/component.h
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Original file line number Diff line number Diff line change
Expand Up @@ -49,16 +49,31 @@
*
* States may transform as below:-
*
* 1) i.e. Initialisation to playback and pause/release
* init --> setup --> prepare --> active <-> paused --+
* ^ |
* +-----------------------------+
*
* 2) i.e. Suspend
* -------------
* pause | | stop/xrun
* +-------------| ACTIVITY |---------------+
* | | | | prepare
* | ------------- | +-----------+
* | ^ ^ | | |
* | | | | | |
* v | | v | |
* ------------- | | ------------- |
* | | release | | start | | |
* | PAUSED |-----------+ +-------------| PREPARE |<-------+
* | | | |
* ------------- -------------
* | ^ ^
* | stop/xrun | |
* +--------------------------------------+ |
* | prepare
* ------------- |
* | | |
* ----------->| READY |------------------+
* reset | |
* -------------
*
*
* setup --> suspend --> setup OR
* prepare --> suspend -> prepare OR
* paused --> suspend --> paused
*/

#define COMP_STATE_INIT 0 /* component being initialised */
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