add audio

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2023-12-11 1f93a7dfd1f8d5ff7a5c53246c7534fe2332d6f4

 kernel/sound/usb/card.h
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@@ -16,6 +16,7 @@
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 	u64 formats;			/* ALSA format bits */
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 	unsigned int channels;		/* # channels */
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 	unsigned int fmt_type;		/* USB audio format type (1-3) */
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+	unsigned int fmt_bits;		/* number of significant bits */
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 	unsigned int frame_size;	/* samples per frame for non-audio */
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 	int iface;			/* interface number */
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 	unsigned char altsetting;	/* corresponding alternate setting */
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@@ -85,6 +86,10 @@
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 	dma_addr_t sync_dma;		/* DMA address of syncbuf */
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 	unsigned int pipe;		/* the data i/o pipe */
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+	unsigned int packsize[2];	/* small/large packet sizes in samples */
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+	unsigned int sample_rem;	/* remainder from division fs/pps */
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+	unsigned int sample_accum;	/* sample accumulator */
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+	unsigned int pps;		/* packets per second */
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 	unsigned int freqn;		/* nominal sampling rate in fs/fps in Q16.16 format */
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 	unsigned int freqm;		/* momentary sampling rate in fs/fps in Q16.16 format */
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 	int	   freqshift;		/* how much to shift the feedback value to get Q16.16 */
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@@ -105,6 +110,7 @@
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 	int iface, altsetting;
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 	int skip_packets;		/* quirks for devices to ignore the first n packets
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 					   in a stream */
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+	bool is_implicit_feedback;      /* This endpoint is used as implicit feedback */
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 	spinlock_t lock;
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 	struct list_head list;
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@@ -114,6 +120,8 @@
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 	ANDROID_KABI_RESERVE(3);
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 	ANDROID_KABI_RESERVE(4);
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 };
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+
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+struct media_ctl;
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 struct snd_usb_substream {
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 	struct snd_usb_stream *stream;
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@@ -136,6 +144,7 @@
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 	unsigned int tx_length_quirk:1;	/* add length specifier to transfers */
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 	unsigned int fmt_type;		/* USB audio format type (1-3) */
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 	unsigned int pkt_offset_adj;	/* Bytes to drop from beginning of packets (for non-compliant devices) */
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+	unsigned int stream_offset_adj;	/* Bytes to drop from beginning of stream (for non-compliant devices) */
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 	unsigned int running: 1;	/* running status */
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@@ -168,6 +177,9 @@
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 	} dsd_dop;
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 	bool trigger_tstamp_pending_update; /* trigger timestamp being updated from initial estimate */
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+	struct media_ctl *media_ctl;
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+
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+	ANDROID_KABI_RESERVE(1);
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 };
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 struct snd_usb_stream {
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@@ -183,4 +195,21 @@
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 	unsigned int pcm_idx, unsigned int direction, struct snd_usb_audio
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 	**uchip, void (*disconnect_cb)(struct snd_usb_audio *chip));
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+int snd_vendor_set_ops(struct snd_usb_audio_vendor_ops *vendor_ops);
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+struct snd_usb_audio_vendor_ops *snd_vendor_get_ops(void);
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+int snd_vendor_set_interface(struct usb_device *udev,
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+			     struct usb_host_interface *alts,
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+			     int iface, int alt);
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+int snd_vendor_set_rate(struct usb_interface *intf, int iface, int rate,
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+			int alt);
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+int snd_vendor_set_pcm_buf(struct usb_device *udev, int iface);
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+int snd_vendor_set_pcm_intf(struct usb_interface *intf, int iface, int alt,
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+			    int direction);
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+int snd_vendor_set_pcm_connection(struct usb_device *udev,
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+				  enum snd_vendor_pcm_open_close onoff,
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+				  int direction);
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+int snd_vendor_set_pcm_binterval(struct audioformat *fp,
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+				 struct audioformat *found,
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+				 int *cur_attr, int *attr);
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+
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 #endif /* __USBAUDIO_CARD_H */