63 lines
2.2 KiB
C
63 lines
2.2 KiB
C
/*
|
|
* This file is part of the libsigrok project.
|
|
*
|
|
* Copyright (C) 2011 Daniel Ribeiro <drwyrm@gmail.com>
|
|
* Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de>
|
|
* Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef LIBSIGROK_HARDWARE_ALSA_PROTOCOL_H
|
|
#define LIBSIGROK_HARDWARE_ALSA_PROTOCOL_H
|
|
|
|
#include <stdint.h>
|
|
#include <alsa/asoundlib.h>
|
|
#include "libsigrok.h"
|
|
#include "libsigrok-internal.h"
|
|
|
|
/* Message logging helpers with driver-specific prefix string. */
|
|
#define DRIVER_LOG_DOMAIN "alsa: "
|
|
#define sr_log(l, s, args...) sr_log(l, DRIVER_LOG_DOMAIN s, ## args)
|
|
#define sr_spew(s, args...) sr_spew(DRIVER_LOG_DOMAIN s, ## args)
|
|
#define sr_dbg(s, args...) sr_dbg(DRIVER_LOG_DOMAIN s, ## args)
|
|
#define sr_info(s, args...) sr_info(DRIVER_LOG_DOMAIN s, ## args)
|
|
#define sr_warn(s, args...) sr_warn(DRIVER_LOG_DOMAIN s, ## args)
|
|
#define sr_err(s, args...) sr_err(DRIVER_LOG_DOMAIN s, ## args)
|
|
|
|
/** Private, per-device-instance driver context. */
|
|
struct dev_context {
|
|
uint64_t cur_samplerate;
|
|
uint64_t limit_samples;
|
|
uint64_t num_samples;
|
|
uint8_t num_probes;
|
|
struct sr_samplerates supp_rates;
|
|
char *hwdev;
|
|
snd_pcm_t *capture_handle;
|
|
snd_pcm_hw_params_t *hw_params;
|
|
struct pollfd *ufds;
|
|
void *cb_data;
|
|
};
|
|
|
|
SR_PRIV GSList *alsa_scan(GSList *options, struct sr_dev_driver *di);
|
|
SR_PRIV void alsa_dev_inst_clear(struct sr_dev_inst *sdi);
|
|
|
|
SR_PRIV int alsa_set_samplerate(const struct sr_dev_inst *sdi,
|
|
uint64_t newrate);
|
|
|
|
SR_PRIV int alsa_receive_data(int fd, int revents, void *cb_data);
|
|
|
|
#endif
|