| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | #ifndef __USBAUDIO_ENDPOINT_H |
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| 3 | #define __USBAUDIO_ENDPOINT_H |
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| 4 | |
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| 5 | #define SND_USB_ENDPOINT_TYPE_DATA 0 |
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| 6 | #define SND_USB_ENDPOINT_TYPE_SYNC 1 |
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| 7 | |
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| 8 | struct snd_usb_endpoint *snd_usb_get_endpoint(struct snd_usb_audio *chip, |
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| 9 | int ep_num); |
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| 10 | |
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| 11 | int snd_usb_add_endpoint(struct snd_usb_audio *chip, int ep_num, int type); |
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| 12 | |
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| 13 | struct snd_usb_endpoint * |
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| 14 | snd_usb_endpoint_open(struct snd_usb_audio *chip, |
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| 15 | const struct audioformat *fp, |
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| 16 | const struct snd_pcm_hw_params *params, |
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| 17 | bool is_sync_ep, |
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| 18 | bool fixed_rate); |
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| 19 | void snd_usb_endpoint_close(struct snd_usb_audio *chip, |
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| 20 | struct snd_usb_endpoint *ep); |
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| 21 | int snd_usb_endpoint_set_params(struct snd_usb_audio *chip, |
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| 22 | struct snd_usb_endpoint *ep); |
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| 23 | int snd_usb_endpoint_prepare(struct snd_usb_audio *chip, |
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| 24 | struct snd_usb_endpoint *ep); |
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| 25 | int snd_usb_endpoint_get_clock_rate(struct snd_usb_audio *chip, int clock); |
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| 26 | |
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| 27 | bool snd_usb_endpoint_compatible(struct snd_usb_audio *chip, |
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| 28 | struct snd_usb_endpoint *ep, |
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| 29 | const struct audioformat *fp, |
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| 30 | const struct snd_pcm_hw_params *params); |
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| 31 | |
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| 32 | void snd_usb_endpoint_set_sync(struct snd_usb_audio *chip, |
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| 33 | struct snd_usb_endpoint *data_ep, |
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| 34 | struct snd_usb_endpoint *sync_ep); |
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| 35 | void snd_usb_endpoint_set_callback(struct snd_usb_endpoint *ep, |
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| 36 | int (*prepare)(struct snd_usb_substream *subs, |
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| 37 | struct urb *urb, |
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| 38 | bool in_stream_lock), |
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| 39 | void (*retire)(struct snd_usb_substream *subs, |
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| 40 | struct urb *urb), |
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| 41 | struct snd_usb_substream *data_subs); |
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| 42 | |
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| 43 | int snd_usb_endpoint_start(struct snd_usb_endpoint *ep); |
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| 44 | void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep, bool keep_pending); |
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| 45 | void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep); |
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| 46 | void snd_usb_endpoint_suspend(struct snd_usb_endpoint *ep); |
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| 47 | void snd_usb_endpoint_release(struct snd_usb_endpoint *ep); |
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| 48 | void snd_usb_endpoint_free_all(struct snd_usb_audio *chip); |
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| 49 | |
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| 50 | int snd_usb_endpoint_implicit_feedback_sink(struct snd_usb_endpoint *ep); |
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| 51 | int snd_usb_endpoint_next_packet_size(struct snd_usb_endpoint *ep, |
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| 52 | struct snd_urb_ctx *ctx, int idx, |
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| 53 | unsigned int avail); |
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| 54 | int snd_usb_queue_pending_output_urbs(struct snd_usb_endpoint *ep, |
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| 55 | bool in_stream_lock); |
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| 56 | |
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| 57 | #endif /* __USBAUDIO_ENDPOINT_H */ |
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| 58 | |
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