Commit 5ae2ef54 authored by Bastien Nocera's avatar Bastien Nocera

lib: Split off fpi_ssm functions

Rename drv.c to something more fitting to its contents, and move state
machine code to its own header.
parent cafa05da
......@@ -36,6 +36,7 @@
#include <libusb.h>
#include "fprint.h"
#include "fpi-ssm.h"
#include "assembling.h"
#include "drivers/driver_ids.h"
......@@ -211,35 +212,6 @@ struct fpi_timeout *fpi_timeout_add(unsigned int msec, fpi_timeout_fn callback,
void *data);
void fpi_timeout_cancel(struct fpi_timeout *timeout);
/* 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. */
/* 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);
void fpi_ssm_start_subsm(struct fpi_ssm *parent, struct fpi_ssm *child);
/* 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);
struct fp_dev *fpi_ssm_get_dev(struct fpi_ssm *machine);
void fpi_ssm_set_user_data(struct fpi_ssm *machine,
void *user_data);
void *fpi_ssm_get_user_data(struct fpi_ssm *machine);
int fpi_ssm_get_error(struct fpi_ssm *machine);
int fpi_ssm_get_cur_state(struct fpi_ssm *machine);
void fpi_drvcb_open_complete(struct fp_dev *dev, int status);
void fpi_drvcb_close_complete(struct fp_dev *dev);
......
......@@ -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);
......
......@@ -20,6 +20,7 @@
#define FP_COMPONENT "drv"
#include "fp_internal.h"
#include "fpi-ssm.h"
#include <config.h>
#include <errno.h>
......@@ -68,6 +69,21 @@
* successful completion.
*/
/* 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;
};
/* Allocate a new ssm */
struct fpi_ssm *fpi_ssm_new(struct fp_dev *dev, ssm_handler_fn handler,
int nr_states)
......
/*
* Driver API definitions
* Copyright (C) 2007-2008 Daniel Drake <dsd@gentoo.org>
* Copyright (C) 2018 Bastien Nocera <hadess@hadess.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef __FPI_SSM_H__
#define __FPI_SSM_H__
#include <stdint.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <glib.h>
#include <libusb.h>
/* 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. */
/* 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);
void fpi_ssm_start_subsm(struct fpi_ssm *parent, struct fpi_ssm *child);
/* 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);
struct fp_dev *fpi_ssm_get_dev(struct fpi_ssm *machine);
void fpi_ssm_set_user_data(struct fpi_ssm *machine,
void *user_data);
void *fpi_ssm_get_user_data(struct fpi_ssm *machine);
int fpi_ssm_get_error(struct fpi_ssm *machine);
int fpi_ssm_get_cur_state(struct fpi_ssm *machine);
#endif
......@@ -4,7 +4,8 @@ libfprint_sources = [
'async.c',
'core.c',
'data.c',
'drv.c',
'fpi-ssm.c',
'fpi-ssm.h',
'img.c',
'imgdev.c',
'poll.c',
......
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