115 lines
3.2 KiB
C
115 lines
3.2 KiB
C
|
/* -*- linux-c -*- *
|
||
|
|
*
|
||
|
|
* ALSA driver for the digigram lx6464es interface
|
||
|
|
*
|
||
|
|
* Copyright (c) 2009 Tim Blechmann <tim@klingt.org>
|
||
|
|
*
|
||
|
|
*
|
||
|
|
* 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; see the file COPYING. If not, write to
|
||
|
|
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||
|
|
* Boston, MA 02111-1307, USA.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef LX6464ES_H
|
||
|
|
#define LX6464ES_H
|
||
|
|
|
||
|
|
#include <linux/spinlock.h>
|
||
|
|
#include <asm/atomic.h>
|
||
|
|
|
||
|
|
#include <sound/core.h>
|
||
|
|
#include <sound/pcm.h>
|
||
|
|
|
||
|
|
#include "lx_core.h"
|
||
|
|
|
||
|
|
#define LXP "LX6464ES: "
|
||
|
|
|
||
|
|
enum {
|
||
|
|
ES_cmd_free = 0, /* no command executing */
|
||
|
|
ES_cmd_processing = 1, /* execution of a read/write command */
|
||
|
|
ES_read_pending = 2, /* a asynchron read command is pending */
|
||
|
|
ES_read_finishing = 3, /* a read command has finished waiting (set by
|
||
|
|
* Interrupt or CancelIrp) */
|
||
|
|
};
|
||
|
|
|
||
|
|
enum lx_stream_status {
|
||
|
|
LX_STREAM_STATUS_FREE,
|
||
|
|
/* LX_STREAM_STATUS_OPEN, */
|
||
|
|
LX_STREAM_STATUS_SCHEDULE_RUN,
|
||
|
|
/* LX_STREAM_STATUS_STARTED, */
|
||
|
|
LX_STREAM_STATUS_RUNNING,
|
||
|
|
LX_STREAM_STATUS_SCHEDULE_STOP,
|
||
|
|
/* LX_STREAM_STATUS_STOPPED, */
|
||
|
|
/* LX_STREAM_STATUS_PAUSED */
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
struct lx_stream {
|
||
|
|
struct snd_pcm_substream *stream;
|
||
|
|
snd_pcm_uframes_t frame_pos;
|
||
|
|
enum lx_stream_status status; /* free, open, running, draining
|
||
|
|
* pause */
|
||
|
|
int is_capture:1;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
struct lx6464es {
|
||
|
|
struct snd_card *card;
|
||
|
|
struct pci_dev *pci;
|
||
|
|
int irq;
|
||
|
|
|
||
|
|
spinlock_t lock; /* interrupt spinlock */
|
||
|
|
struct mutex setup_mutex; /* mutex used in hw_params, open
|
||
|
|
* and close */
|
||
|
|
|
||
|
|
struct tasklet_struct trigger_tasklet; /* trigger tasklet */
|
||
|
|
struct tasklet_struct tasklet_capture;
|
||
|
|
struct tasklet_struct tasklet_playback;
|
||
|
|
|
||
|
|
/* ports */
|
||
|
|
unsigned long port_plx; /* io port (size=256) */
|
||
|
|
void __iomem *port_plx_remapped; /* remapped plx port */
|
||
|
|
void __iomem *port_dsp_bar; /* memory port (32-bit,
|
||
|
|
* non-prefetchable,
|
||
|
|
* size=8K) */
|
||
|
|
|
||
|
|
/* messaging */
|
||
|
|
spinlock_t msg_lock; /* message spinlock */
|
||
|
|
atomic_t send_message_locked;
|
||
|
|
struct lx_rmh rmh;
|
||
|
|
|
||
|
|
/* configuration */
|
||
|
|
uint freq_ratio : 2;
|
||
|
|
uint playback_mute : 1;
|
||
|
|
uint hardware_running[2];
|
||
|
|
u32 board_sample_rate; /* sample rate read from
|
||
|
|
* board */
|
||
|
|
u32 sample_rate; /* our sample rate */
|
||
|
|
u16 pcm_granularity; /* board blocksize */
|
||
|
|
|
||
|
|
/* dma */
|
||
|
|
struct snd_dma_buffer capture_dma_buf;
|
||
|
|
struct snd_dma_buffer playback_dma_buf;
|
||
|
|
|
||
|
|
/* pcm */
|
||
|
|
struct snd_pcm *pcm;
|
||
|
|
|
||
|
|
/* streams */
|
||
|
|
struct lx_stream capture_stream;
|
||
|
|
struct lx_stream playback_stream;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
#endif /* LX6464ES_H */
|