X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=sound%2Fcore%2Frtctimer.c;h=97b30fb4c361193b1ef65821a46dea9f67736d9b;hb=52cd5750e81ec8d213949fa7c0d2e08907bf498b;hp=84704ccb1829385416f28d7dbcc0a3ad2a5d5e9e;hpb=ea9b395fe20ac74be788f415af2622ac8f0c35c7;p=linux-2.6-omap-h63xx.git

diff --git a/sound/core/rtctimer.c b/sound/core/rtctimer.c
index 84704ccb182..97b30fb4c36 100644
--- a/sound/core/rtctimer.c
+++ b/sound/core/rtctimer.c
@@ -20,15 +20,12 @@
  *
  */
 
-#include <sound/driver.h>
 #include <linux/init.h>
-#include <linux/time.h>
-#include <linux/threads.h>
 #include <linux/interrupt.h>
 #include <linux/moduleparam.h>
+#include <linux/log2.h>
 #include <sound/core.h>
 #include <sound/timer.h>
-#include <sound/info.h>
 
 #if defined(CONFIG_RTC) || defined(CONFIG_RTC_MODULE)
 
@@ -50,7 +47,9 @@ static int rtctimer_stop(struct snd_timer *t);
  * The hardware dependent description for this timer.
  */
 static struct snd_timer_hardware rtc_hw = {
-	.flags =	SNDRV_TIMER_HW_FIRST|SNDRV_TIMER_HW_AUTO,
+	.flags =	SNDRV_TIMER_HW_AUTO |
+			SNDRV_TIMER_HW_FIRST |
+			SNDRV_TIMER_HW_TASKLET,
 	.ticks =	100000000L,		/* FIXME: XXX */
 	.open =		rtctimer_open,
 	.close =	rtctimer_close,
@@ -60,6 +59,7 @@ static struct snd_timer_hardware rtc_hw = {
 
 static int rtctimer_freq = RTC_FREQ;		/* frequency */
 static struct snd_timer *rtctimer;
+static struct tasklet_struct rtc_tasklet;
 static rtc_task_t rtc_task;
 
 
@@ -81,6 +81,7 @@ rtctimer_close(struct snd_timer *t)
 	rtc_task_t *rtc = t->private_data;
 	if (rtc) {
 		rtc_unregister(rtc);
+		tasklet_kill(&rtc_tasklet);
 		t->private_data = NULL;
 	}
 	return 0;
@@ -105,12 +106,17 @@ rtctimer_stop(struct snd_timer *timer)
 	return 0;
 }
 
+static void rtctimer_tasklet(unsigned long data)
+{
+	snd_timer_interrupt((struct snd_timer *)data, 1);
+}
+
 /*
  * interrupt
  */
 static void rtctimer_interrupt(void *private_data)
 {
-	snd_timer_interrupt(private_data, 1);
+	tasklet_hi_schedule(private_data);
 }
 
 
@@ -123,7 +129,7 @@ static int __init rtctimer_init(void)
 	struct snd_timer *timer;
 
 	if (rtctimer_freq < 2 || rtctimer_freq > 8192 ||
-	    (rtctimer_freq & (rtctimer_freq - 1)) != 0) {
+	    !is_power_of_2(rtctimer_freq)) {
 		snd_printk(KERN_ERR "rtctimer: invalid frequency %d\n",
 			   rtctimer_freq);
 		return -EINVAL;
@@ -139,9 +145,11 @@ static int __init rtctimer_init(void)
 	timer->hw = rtc_hw;
 	timer->hw.resolution = NANO_SEC / rtctimer_freq;
 
+	tasklet_init(&rtc_tasklet, rtctimer_tasklet, (unsigned long)timer);
+
 	/* set up RTC callback */
 	rtc_task.func = rtctimer_interrupt;
-	rtc_task.private_data = timer;
+	rtc_task.private_data = &rtc_tasklet;
 
 	err = snd_timer_global_register(timer);
 	if (err < 0) {
@@ -156,7 +164,7 @@ static int __init rtctimer_init(void)
 static void __exit rtctimer_exit(void)
 {
 	if (rtctimer) {
-		snd_timer_global_unregister(rtctimer);
+		snd_timer_global_free(rtctimer);
 		rtctimer = NULL;
 	}
 }