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lib: Split off fpi_ssm functions

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Rename drv.c to something more fitting to its contents, and move state
machine code to its own header.
This commit is contained in:
Bastien Nocera
2018-09-05 12:39:16 +02:00
parent cafa05dab5
commit 5ae2ef5407
5 changed files with 79 additions and 64 deletions
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34
libfprint/fp_internal.h
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@@ -348,40 +348,6 @@ void fpi_poll_exit(void);
typedef void (*fpi_timeout_fn)(void *data);
/* async drv <--> lib comms */
struct fpi_ssm;
typedef void (*ssm_completed_fn)(struct fpi_ssm *ssm);
typedef void (*ssm_handler_fn)(struct fpi_ssm *ssm);
/* sequential state machine: state machine that iterates sequentially over
* a predefined series of states. can be aborted by either completion or
* abortion error conditions. */
struct fpi_ssm {
struct fp_dev *dev;
struct fpi_ssm *parentsm;
void *priv;
int nr_states;
int cur_state;
gboolean completed;
int error;
ssm_completed_fn callback;
ssm_handler_fn handler;
};
/* for library and drivers */
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);
/* for drivers */
void fpi_ssm_next_state(struct fpi_ssm *machine);
void fpi_ssm_jump_to_state(struct fpi_ssm *machine, int state);
void fpi_ssm_mark_completed(struct fpi_ssm *machine);
void fpi_ssm_mark_aborted(struct fpi_ssm *machine, int error);
void fpi_drvcb_open_complete(struct fp_dev *dev, int status);
void fpi_drvcb_close_complete(struct fp_dev *dev);