add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/drivers/usb/gadget/function/u_audio.h
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@@ -1,4 +1,4 @@
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-// SPDX-License-Identifier: GPL-2.0+
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+/* SPDX-License-Identifier: GPL-2.0+ */
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 /*
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  * u_audio.h -- interface to USB gadget "ALSA sound card" utilities
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  *
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@@ -10,33 +10,53 @@
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 #define __U_AUDIO_H
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 #include <linux/usb/composite.h>
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+#include "uac_common.h"
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-#define UAC_VOLUME_CUR			0x0000
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-#define UAC_VOLUME_RES			0x0080 /* 0.5 dB */
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-#define UAC_VOLUME_MAX			0x1900 /* 25 dB */
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-#define UAC_VOLUME_MIN			0xE700 /* -25 dB */
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-#define UAC_VOLUME_NEGATIVE_INFINITY	0x8000
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-#define UAC_MAX_RATES 10
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+/*
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+ * Same maximum frequency deviation on the slower side as in
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+ * sound/usb/endpoint.c. Value is expressed in per-mil deviation.
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+ */
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+#define FBACK_SLOW_MAX	250
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+
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+/*
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+ * Maximum frequency deviation on the faster side, default value for UAC1/2.
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+ * Value is expressed in per-mil deviation.
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+ * UAC2 provides the value as a parameter as it impacts the endpoint required
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+ * bandwidth.
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+ */
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+#define FBACK_FAST_MAX 5
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+
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+/* Feature Unit parameters */
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+struct uac_fu_params {
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+	int id;			/* Feature Unit ID */
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+
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+	bool mute_present;	/* mute control enable */
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+
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+	bool volume_present;	/* volume control enable */
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+	s16 volume_min;		/* min volume in 1/256 dB */
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+	s16 volume_max;		/* max volume in 1/256 dB */
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+	s16 volume_res;		/* volume resolution in 1/256 dB */
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+};
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+
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 struct uac_params {
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 	/* playback */
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-	int p_volume;
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-	int p_mute;
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 	int p_chmask;	/* channel mask */
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-	int p_srate[UAC_MAX_RATES];	/* rate in Hz */
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-	int p_srate_active;		/* selected rate in Hz */
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+	int p_srates[UAC_MAX_RATES];	/* available rates in Hz (0 terminated list) */
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 	int p_ssize;	/* sample size */
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+	struct uac_fu_params p_fu;	/* Feature Unit parameters */
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 	/* capture */
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-	int c_volume;
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-	int c_mute;
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 	int c_chmask;	/* channel mask */
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-	int c_srate[UAC_MAX_RATES];	/* rate in Hz */
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-	int c_srate_active;		/* selected rate in Hz */
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+	int c_srates[UAC_MAX_RATES];	/* available rates in Hz (0 terminated list) */
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 	int c_ssize;	/* sample size */
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+	struct uac_fu_params c_fu;	/* Feature Unit parameters */
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+
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+	/* rates are dynamic, in uac_rtd_params */
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 	int ppm;	/* difference between audio clk and usb clk */
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 	int req_number; /* number of preallocated requests */
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+	int fb_max;	/* upper frequency drift feedback limit per-mil */
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 };
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 enum usb_state_index {
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@@ -79,12 +99,18 @@
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 	struct usb_gadget *gadget;
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 	struct usb_ep *in_ep;
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+
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 	struct usb_ep *out_ep;
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+	/* feedback IN endpoint corresponding to out_ep */
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+	struct usb_ep *in_ep_fback;
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 	/* Max packet size for all in_ep possible speeds */
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 	unsigned int in_ep_maxpsize;
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 	/* Max packet size for all out_ep possible speeds */
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 	unsigned int out_ep_maxpsize;
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+
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+	/* Notify UAC driver about control change */
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+	int (*notify)(struct g_audio *g_audio, int unit_id, int cs);
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 	/* The ALSA Sound Card it represents on the USB-Client side */
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 	struct snd_uac_chip *uac;
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@@ -130,9 +156,17 @@
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 void u_audio_stop_capture(struct g_audio *g_audio);
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 int u_audio_start_playback(struct g_audio *g_audio);
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 void u_audio_stop_playback(struct g_audio *g_audio);
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+
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+int u_audio_get_capture_srate(struct g_audio *audio_dev, u32 *val);
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 int u_audio_set_capture_srate(struct g_audio *audio_dev, int srate);
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+int u_audio_get_playback_srate(struct g_audio *audio_dev, u32 *val);
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 int u_audio_set_playback_srate(struct g_audio *audio_dev, int srate);
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-int u_audio_fu_set_cmd(struct usb_audio_control *con, u8 cmd, int value);
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-int u_audio_fu_get_cmd(struct usb_audio_control *con, u8 cmd);
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+
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+int u_audio_get_volume(struct g_audio *g_audio, int playback, s16 *val);
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+int u_audio_set_volume(struct g_audio *g_audio, int playback, s16 val);
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+int u_audio_get_mute(struct g_audio *g_audio, int playback, int *val);
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+int u_audio_set_mute(struct g_audio *g_audio, int playback, int val);
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+
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+void u_audio_suspend(struct g_audio *g_audio);
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 #endif /* __U_AUDIO_H */