debug lk

hc

2024-02-20 e636c8d336489bf3eed5878299e6cc045bbad077

 kernel/include/sound/timer.h
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@@ -1,3 +1,4 @@
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+/* SPDX-License-Identifier: GPL-2.0-or-later */
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 #ifndef __SOUND_TIMER_H
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 #define __SOUND_TIMER_H
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@@ -5,26 +6,11 @@
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  *  Timer abstract layer
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  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>,
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  *		     Abramo Bagnara <abramo@alsa-project.org>
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- *
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- *
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- *   This program is free software; you can redistribute it and/or modify
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- *   it under the terms of the GNU General Public License as published by
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- *   the Free Software Foundation; either version 2 of the License, or
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- *   (at your option) any later version.
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- *
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- *   This program is distributed in the hope that it will be useful,
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- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
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- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- *   GNU General Public License for more details.
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- *
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- *   You should have received a copy of the GNU General Public License
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- *   along with this program; if not, write to the Free Software
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- *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
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- *
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  */
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 #include <sound/asound.h>
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 #include <linux/interrupt.h>
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+#include <linux/android_kabi.h>
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 #define snd_timer_chip(timer) ((timer)->private_data)
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@@ -36,13 +22,13 @@
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 #define SNDRV_TIMER_HW_STOP	0x00000002	/* call stop before start */
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 #define SNDRV_TIMER_HW_SLAVE	0x00000004	/* only slave timer (variable resolution) */
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 #define SNDRV_TIMER_HW_FIRST	0x00000008	/* first tick can be incomplete */
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-#define SNDRV_TIMER_HW_TASKLET	0x00000010	/* timer is called from tasklet */
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+#define SNDRV_TIMER_HW_WORK	0x00000010	/* timer is called from work */
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 #define SNDRV_TIMER_IFLG_SLAVE	  0x00000001
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 #define SNDRV_TIMER_IFLG_RUNNING  0x00000002
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 #define SNDRV_TIMER_IFLG_START	  0x00000004
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 #define SNDRV_TIMER_IFLG_AUTO	  0x00000008	/* auto restart */
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-#define SNDRV_TIMER_IFLG_FAST	  0x00000010	/* fast callback (do not use tasklet) */
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+#define SNDRV_TIMER_IFLG_FAST	  0x00000010	/* fast callback (do not use work) */
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 #define SNDRV_TIMER_IFLG_CALLBACK 0x00000020	/* timer callback is active */
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 #define SNDRV_TIMER_IFLG_EXCLUSIVE 0x00000040	/* exclusive owner - no more instances */
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 #define SNDRV_TIMER_IFLG_EARLY_EVENT 0x00000080	/* write early event to the poll queue */
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@@ -67,6 +53,8 @@
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 	int (*stop) (struct snd_timer * timer);
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 	int (*set_period) (struct snd_timer * timer, unsigned long period_num, unsigned long period_den);
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 	int (*precise_resolution) (struct snd_timer * timer, unsigned long *num, unsigned long *den);
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+
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+	ANDROID_KABI_RESERVE(1);
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 };
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 struct snd_timer {
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@@ -89,9 +77,11 @@
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 	struct list_head active_list_head;
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 	struct list_head ack_list_head;
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 	struct list_head sack_list_head; /* slow ack list head */
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-	struct tasklet_struct task_queue;
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+	struct work_struct task_work;
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 	int max_instances;	/* upper limit of timer instances */
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 	int num_instances;	/* current number of timer instances */
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+
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+	ANDROID_KABI_RESERVE(1);
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 };
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 struct snd_timer_instance {
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@@ -104,14 +94,14 @@
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 			  unsigned long ticks, unsigned long resolution);
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 	void (*ccallback) (struct snd_timer_instance * timeri,
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 			   int event,
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-			   struct timespec * tstamp,
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+			   struct timespec64 * tstamp,
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 			   unsigned long resolution);
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 	void (*disconnect)(struct snd_timer_instance *timeri);
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 	void *callback_data;
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 	unsigned long ticks;		/* auto-load ticks when expired */
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 	unsigned long cticks;		/* current ticks */
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 	unsigned long pticks;		/* accumulated ticks for callback */
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-	unsigned long resolution;	/* current resolution for tasklet */
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+	unsigned long resolution;	/* current resolution for work */
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 	unsigned long lost;		/* lost ticks */
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 	int slave_class;
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 	unsigned int slave_id;
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@@ -121,6 +111,8 @@
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 	struct list_head slave_list_head;
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 	struct list_head slave_active_head;
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 	struct snd_timer_instance *master;
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+
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+	ANDROID_KABI_RESERVE(1);
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 };
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 /*
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@@ -128,13 +120,15 @@
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  */
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 int snd_timer_new(struct snd_card *card, char *id, struct snd_timer_id *tid, struct snd_timer **rtimer);
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-void snd_timer_notify(struct snd_timer *timer, int event, struct timespec *tstamp);
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+void snd_timer_notify(struct snd_timer *timer, int event, struct timespec64 *tstamp);
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 int snd_timer_global_new(char *id, int device, struct snd_timer **rtimer);
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 int snd_timer_global_free(struct snd_timer *timer);
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 int snd_timer_global_register(struct snd_timer *timer);
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-int snd_timer_open(struct snd_timer_instance **ti, char *owner, struct snd_timer_id *tid, unsigned int slave_id);
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-int snd_timer_close(struct snd_timer_instance *timeri);
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+struct snd_timer_instance *snd_timer_instance_new(const char *owner);
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+void snd_timer_instance_free(struct snd_timer_instance *timeri);
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+int snd_timer_open(struct snd_timer_instance *timeri, struct snd_timer_id *tid, unsigned int slave_id);
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+void snd_timer_close(struct snd_timer_instance *timeri);
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 unsigned long snd_timer_resolution(struct snd_timer_instance *timeri);
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 int snd_timer_start(struct snd_timer_instance *timeri, unsigned int ticks);
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 int snd_timer_stop(struct snd_timer_instance *timeri);