diff options
Diffstat (limited to 'sound/usb/usx2y/usbusx2y.h')
-rw-r--r-- | sound/usb/usx2y/usbusx2y.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/sound/usb/usx2y/usbusx2y.h b/sound/usb/usx2y/usbusx2y.h new file mode 100644 index 000000000..8d82f5cc2 --- /dev/null +++ b/sound/usb/usx2y/usbusx2y.h @@ -0,0 +1,88 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef USBUSX2Y_H +#define USBUSX2Y_H +#include "../usbaudio.h" +#include "../midi.h" +#include "usbus428ctldefs.h" + +#define NRURBS 2 + + +#define URBS_ASYNC_SEQ 10 +#define URB_DATA_LEN_ASYNC_SEQ 32 +struct snd_usx2y_async_seq { + struct urb *urb[URBS_ASYNC_SEQ]; + char *buffer; +}; + +struct snd_usx2y_urb_seq { + int submitted; + int len; + struct urb *urb[]; +}; + +#include "usx2yhwdeppcm.h" + +struct usx2ydev { + struct usb_device *dev; + int card_index; + int stride; + struct urb *in04_urb; + void *in04_buf; + char in04_last[24]; + unsigned int in04_int_calls; + struct snd_usx2y_urb_seq *us04; + wait_queue_head_t in04_wait_queue; + struct snd_usx2y_async_seq as04; + unsigned int rate, + format; + int chip_status; + struct mutex pcm_mutex; + struct us428ctls_sharedmem *us428ctls_sharedmem; + int wait_iso_frame; + wait_queue_head_t us428ctls_wait_queue_head; + struct snd_usx2y_hwdep_pcm_shm *hwdep_pcm_shm; + struct snd_usx2y_substream *subs[4]; + struct snd_usx2y_substream * volatile prepare_subs; + wait_queue_head_t prepare_wait_queue; + struct list_head midi_list; + int pcm_devs; +}; + + +struct snd_usx2y_substream { + struct usx2ydev *usx2y; + struct snd_pcm_substream *pcm_substream; + + int endpoint; + unsigned int maxpacksize; /* max packet size in bytes */ + + atomic_t state; +#define STATE_STOPPED 0 +#define STATE_STARTING1 1 +#define STATE_STARTING2 2 +#define STATE_STARTING3 3 +#define STATE_PREPARED 4 +#define STATE_PRERUNNING 6 +#define STATE_RUNNING 8 + + int hwptr; /* free frame position in the buffer (only for playback) */ + int hwptr_done; /* processed frame position in the buffer */ + int transfer_done; /* processed frames since last period update */ + + struct urb *urb[NRURBS]; /* data urb table */ + struct urb *completed_urb; + char *tmpbuf; /* temporary buffer for playback */ +}; + + +#define usx2y(c) ((struct usx2ydev *)(c)->private_data) + +int usx2y_audio_create(struct snd_card *card); + +int usx2y_async_seq04_init(struct usx2ydev *usx2y); +int usx2y_in04_init(struct usx2ydev *usx2y); + +#define NAME_ALLCAPS "US-X2Y" + +#endif |