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/*
* Driver for Digigram pcxhr soundcards
*
* main header file
*
* Copyright (c) 2004 by Digigram <alsa@digigram.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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __SOUND_PCXHR_H
#define __SOUND_PCXHR_H
#include <linux/interrupt.h>
#include <linux/mutex.h>
#include <sound/pcm.h>
#define PCXHR_DRIVER_VERSION 0x000804 /* 0.8.4 */
#define PCXHR_DRIVER_VERSION_STRING "0.8.4" /* 0.8.4 */
#define PCXHR_MAX_CARDS 6
#define PCXHR_PLAYBACK_STREAMS 4
#define PCXHR_GRANULARITY 96 /* transfer granularity (should be min 96 and multiple of 48) */
#define PCXHR_GRANULARITY_MIN 96 /* transfer granularity of pipes and the dsp time (MBOX4) */
struct snd_pcxhr;
struct pcxhr_mgr;
struct pcxhr_stream;
struct pcxhr_pipe;
enum pcxhr_clock_type {
PCXHR_CLOCK_TYPE_INTERNAL = 0,
PCXHR_CLOCK_TYPE_WORD_CLOCK,
PCXHR_CLOCK_TYPE_AES_SYNC,
PCXHR_CLOCK_TYPE_AES_1,
PCXHR_CLOCK_TYPE_AES_2,
PCXHR_CLOCK_TYPE_AES_3,
PCXHR_CLOCK_TYPE_AES_4,
};
struct pcxhr_mgr {
unsigned int num_cards;
struct snd_pcxhr *chip[PCXHR_MAX_CARDS];
struct pci_dev *pci;
int irq;
/* card access with 1 mem bar and 2 io bar's */
unsigned long port[3];
/* share the name */
char shortname[32]; /* short name of this soundcard */
char longname[96]; /* name of this soundcard */
/* message tasklet */
struct tasklet_struct msg_taskq;
struct pcxhr_rmh *prmh;
/* trigger tasklet */
struct tasklet_struct trigger_taskq;
spinlock_t lock; /* interrupt spinlock */
spinlock_t msg_lock; /* message spinlock */
struct mutex setup_mutex; /* mutex used in hw_params, open and close */
struct mutex mixer_mutex; /* mutex for mixer */
/* hardware interface */
unsigned int dsp_loaded; /* bit flags of loaded dsp indices */
unsigned int dsp_version; /* read from embedded once firmware is loaded */
int board_has_analog; /* if 0 the board is digital only */
int mono_capture; /* if 1 the board does mono capture */
int playback_chips; /* 4 or 6 */
int capture_chips; /* 4 or 1 */
int firmware_num; /* 41 or 42 */
struct snd_dma_buffer hostport;
enum pcxhr_clock_type use_clock_type; /* clock type selected by mixer */
enum pcxhr_clock_type cur_clock_type; /* current clock type synced */
int sample_rate;
int ref_count_rate;
int timer_toggle; /* timer interrupt toggles between the two values 0x200 and 0x300 */
int dsp_time_last; /* the last dsp time (read by interrupt) */
int dsp_time_err; /* dsp time errors */
unsigned int src_it_dsp; /* dsp interrupt source */
unsigned int io_num_reg_cont; /* backup of IO_NUM_REG_CONT */
unsigned int codec_speed; /* speed mode of the codecs */
unsigned int sample_rate_real; /* current real sample rate */
int last_reg_stat;
int async_err_stream_xrun;
int async_err_pipe_xrun;
int async_err_other_last;
};
enum pcxhr_stream_status {
PCXHR_STREAM_STATUS_FREE,
PCXHR_STREAM_STATUS_OPEN,
PCXHR_STREAM_STATUS_SCHEDULE_RUN,
PCXHR_STREAM_STATUS_STARTED,
PCXHR_STREAM_STATUS_RUNNING,
PCXHR_STREAM_STATUS_SCHEDULE_STOP,
PCXHR_STREAM_STATUS_STOPPED,
PCXHR_STREAM_STATUS_PAUSED
};
struct pcxhr_stream {
struct snd_pcm_substream *substream;
snd_pcm_format_t format;
struct pcxhr_pipe *pipe;
enum pcxhr_stream_status status; /* free, open, running, draining, pause */
u_int64_t timer_abs_periods; /* timer: samples elapsed since TRIGGER_START (multiple of period_size) */
u_int32_t timer_period_frag; /* timer: samples elapsed since last call to snd_pcm_period_elapsed (0..period_size) */
u_int32_t timer_buf_periods; /* nb of periods in the buffer that have already elapsed */
int timer_is_synced; /* if(0) : timer needs to be resynced with real hardware pointer */
int channels;
};
enum pcxhr_pipe_status {
PCXHR_PIPE_UNDEFINED,
PCXHR_PIPE_DEFINED
};
struct pcxhr_pipe {
enum pcxhr_pipe_status status;
int is_capture; /* this is a capture pipe */
int first_audio; /* first audio num */
};
struct snd_pcxhr {
struct snd_card *card;
struct pcxhr_mgr *mgr;
int chip_idx; /* zero based */
struct snd_pcm *pcm; /* PCM */
struct pcxhr_pipe playback_pipe; /* 1 stereo pipe only */
struct pcxhr_pipe capture_pipe[2]; /* 1 stereo pipe or 2 mono pipes */
struct pcxhr_stream playback_stream[PCXHR_PLAYBACK_STREAMS];
struct pcxhr_stream capture_stream[2]; /* 1 stereo stream or 2 mono streams */
int nb_streams_play;
int nb_streams_capt;
int analog_playback_active[2]; /* Mixer : Master Playback active (!mute) */
int analog_playback_volume[2]; /* Mixer : Master Playback Volume */
int analog_capture_volume[2]; /* Mixer : Master Capture Volume */
int digital_playback_active[PCXHR_PLAYBACK_STREAMS][2]; /* Mixer : Digital Playback Active [streams][stereo]*/
int digital_playback_volume[PCXHR_PLAYBACK_STREAMS][2]; /* Mixer : Digital Playback Volume [streams][stereo]*/
int digital_capture_volume[2]; /* Mixer : Digital Capture Volume [stereo] */
int monitoring_active[2]; /* Mixer : Monitoring Active */
int monitoring_volume[2]; /* Mixer : Monitoring Volume */
int audio_capture_source; /* Mixer : Audio Capture Source */
unsigned char aes_bits[5]; /* Mixer : IEC958_AES bits */
};
struct pcxhr_hostport
{
char purgebuffer[6];
char reserved[2];
};
/* exported */
int pcxhr_create_pcm(struct snd_pcxhr *chip);
int pcxhr_set_clock(struct pcxhr_mgr *mgr, unsigned int rate);
int pcxhr_get_external_clock(struct pcxhr_mgr *mgr, enum pcxhr_clock_type clock_type, int *sample_rate);
#endif /* __SOUND_PCXHR_H */