projects / libsigrok.git / blame
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|---|---|---|
| 9cd9f6b7 AG |
1 | /* |
| 2 | * This file is part of the libsigrok project. | |
| 3 | * | |
| 4 | * Copyright (C) 2011 Daniel Ribeiro <drwyrm@gmail.com> | |
| 5 | * Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de> | |
| 6 | * Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.com> | |
| 7 | * | |
| 8 | * This program is free software; you can redistribute it and/or modify | |
| 9 | * it under the terms of the GNU General Public License as published by | |
| 10 | * the Free Software Foundation; either version 2 of the License, or | |
| 11 | * (at your option) any later version. | |
| 12 | * | |
| 13 | * This program is distributed in the hope that it will be useful, | |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 | * GNU General Public License for more details. | |
| 17 | * | |
| 18 | * You should have received a copy of the GNU General Public License | |
| 19 | * along with this program; if not, write to the Free Software | |
| 20 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
| 21 | */ | |
| 22 | ||
| 23 | #ifndef LIBSIGROK_HARDWARE_ALSA_PROTOCOL_H | |
| 24 | #define LIBSIGROK_HARDWARE_ALSA_PROTOCOL_H | |
| 25 | ||
| 26 | #include "libsigrok.h" | |
| 27 | #include "libsigrok-internal.h" | |
| 28 | ||
| 29 | #include <alsa/asoundlib.h> | |
| 30 | #include <stdint.h> | |
| 31 | ||
| 32 | /* Message logging helpers with driver-specific prefix string. */ | |
| 33 | #define DRIVER_LOG_DOMAIN "alsa: " | |
| 34 | #define sr_log(l, s, args...) sr_log(l, DRIVER_LOG_DOMAIN s, ## args) | |
| 35 | #define sr_spew(s, args...) sr_spew(DRIVER_LOG_DOMAIN s, ## args) | |
| 36 | #define sr_dbg(s, args...) sr_dbg(DRIVER_LOG_DOMAIN s, ## args) | |
| 37 | #define sr_info(s, args...) sr_info(DRIVER_LOG_DOMAIN s, ## args) | |
| 38 | #define sr_warn(s, args...) sr_warn(DRIVER_LOG_DOMAIN s, ## args) | |
| 39 | #define sr_err(s, args...) sr_err(DRIVER_LOG_DOMAIN s, ## args) | |
| 40 | ||
| 41 | /** Private, per-device-instance driver context. */ | |
| 42 | struct dev_context { | |
| 43 | uint64_t cur_samplerate; | |
| 44 | uint64_t limit_samples; | |
| 45 | uint64_t num_samples; | |
| 46 | uint8_t num_probes; | |
| 47 | snd_pcm_t *capture_handle; | |
| 48 | snd_pcm_hw_params_t *hw_params; | |
| 49 | struct pollfd *ufds; | |
| 50 | void *cb_data; | |
| 51 | }; | |
| 52 | ||
| 53 | SR_PRIV int alsa_receive_data(int fd, int revents, void *cb_data); | |
| 54 | ||
| 55 | #endif /* LIBSIGROK_HARDWARE_ALSA_PROTOCOL_H */ |