ea3e542450
Create parallel helper functions that use libmtp to walk the file tree on the device and to then read a specific file from the device into our dc_buffer. MTP is not a file system, it's an object storage, that just happens to allow object names and parent/child relationships between objects. As a result we need to remember those file ids for MTP downloads. The mtp_get_file_list function is rather complex as it includes both the initial communication with the device and the code to walk the object tree and then create the list of file. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
/*
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* Garmin Descent Mk1
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*
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* Copyright (C) 2018 Linus Torvalds
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#ifndef GARMIN_H
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#define GARMIN_H
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#include <libdivecomputer/context.h>
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#include <libdivecomputer/iostream.h>
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#include <libdivecomputer/device.h>
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#include <libdivecomputer/parser.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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dc_status_t
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garmin_device_open (dc_device_t **device, dc_context_t *context, dc_iostream_t *iostream, unsigned int model);
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dc_status_t
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garmin_parser_create (dc_parser_t **parser, dc_context_t *context);
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// we need to be able to call into the parser to check if the
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// files that we find are actual dives
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int
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garmin_parser_is_dive (dc_parser_t *abstract, const unsigned char *data, unsigned int size, dc_event_devinfo_t *devinfo_p);
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// The dive names are of the form "2018-08-20-10-23-30.fit"
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// With the terminating zero, that's 24 bytes.
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//
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// We use this as the fingerprint, but it ends up being a
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// special fixed header in the parser data too.
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#define FIT_NAME_SIZE 24
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struct fit_file {
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char name[FIT_NAME_SIZE + 1];
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unsigned int mtp_id;
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};
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* GARMIN_H */
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