vfs: check userland buffers before reading them.
[haiku.git] / src / add-ons / media / media-add-ons / dvb / DVBCard.h
blob0af3d0a253e9d510d40239767564de6636d95ea0
1 /*
2 * Copyright (c) 2004-2007 Marcus Overhagen <marcus@overhagen.de>
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without restriction,
7 * including without limitation the rights to use, copy, modify,
8 * merge, publish, distribute, sublicense, and/or sell copies of
9 * the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
17 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
25 #ifndef __DVB_CARD_H
26 #define __DVB_CARD_H
28 #include "dvb.h"
30 class DVBCard
32 public:
33 DVBCard(const char *path);
34 ~DVBCard();
36 status_t InitCheck();
38 status_t GetCardType(dvb_type_t *type);
39 status_t GetCardInfo(char *name, int max_name_len, char *info, int max_info_len);
40 status_t GetSignalInfo(uint32 *ss, uint32 *ber, uint32 *snr);
42 status_t SetTuningParameter(const dvb_tuning_parameters_t& param);
43 status_t GetTuningParameter(dvb_tuning_parameters_t *param);
45 status_t CaptureStart();
46 status_t CaptureStop();
47 status_t Capture(void **data, size_t *size, bigtime_t *end_time);
49 private:
51 int do_ioctl(int fDev, ulong op, void *arg);
53 status_t fInitStatus;
54 int fDev;
56 int64 fFreqMin;
57 int64 fFreqMax;
58 int64 fFreqStep;
60 bool fCaptureActive;
62 dvb_tuning_parameters_t params; // XXX temporary cache
66 #endif