diff options
Diffstat (limited to 'sound/pci/pcxhr/pcxhr.h')
| -rw-r--r-- | sound/pci/pcxhr/pcxhr.h | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/sound/pci/pcxhr/pcxhr.h b/sound/pci/pcxhr/pcxhr.h new file mode 100644 index 0000000..049f2b3 --- /dev/null +++ b/sound/pci/pcxhr/pcxhr.h @@ -0,0 +1,188 @@ +/* + * 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 <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 semaphore setup_mutex; /* mutex used in hw_params, open and close */ + struct semaphore 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 */ |
