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Allow execution of sub-SSMs

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A subssm will be executed, and upon completion the parent state machine
will either be advanced to the next state or aborted with error, depending
on the outcome of the subssm.

Also add some debug messages.
This commit is contained in:
Daniel Drake
2008-02-18 17:54:15 +00:00
parent b8dc77b56e
commit 754e56aec1
2 changed files with 25 additions and 0 deletions
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libfprint/fp_internal.h
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@@ -338,6 +338,7 @@ typedef void (*ssm_handler_fn)(struct fpi_ssm *ssm);
* abortion error conditions. */
struct fpi_ssm {
struct fp_dev *dev;
struct fpi_ssm *parentsm;
void *priv;
int nr_states;
int cur_state;
@@ -353,6 +354,7 @@ struct fpi_ssm *fpi_ssm_new(struct fp_dev *dev, ssm_handler_fn handler,
int nr_states);
void fpi_ssm_free(struct fpi_ssm *machine);
void fpi_ssm_start(struct fpi_ssm *machine, ssm_completed_fn callback);
void fpi_ssm_start_subsm(struct fpi_ssm *parent, struct fpi_ssm *child);
int fpi_ssm_has_completed(struct fpi_ssm *machine);
/* for drivers */