3 files changed, 47 insertions, 20 deletions

diff --git a/sound/drivers/pcsp/pcsp.c b/sound/drivers/pcsp/pcsp.c
index b60cef257b58..f165c77d6273 100644
--- a/sound/drivers/pcsp/pcsp.c
+++ b/sound/drivers/pcsp/pcsp.c
@@ -26,6 +26,7 @@ MODULE_ALIAS("platform:pcspkr");
 static int index = SNDRV_DEFAULT_IDX1;	/* Index 0-MAX */
 static char *id = SNDRV_DEFAULT_STR1;	/* ID for this card */
 static int enable = SNDRV_DEFAULT_ENABLE1;	/* Enable this card */
+static int nopcm;	/* Disable PCM capability of the driver */
 
 module_param(index, int, 0444);
 MODULE_PARM_DESC(index, "Index value for pcsp soundcard.");
@@ -33,6 +34,8 @@ module_param(id, charp, 0444);
 MODULE_PARM_DESC(id, "ID string for pcsp soundcard.");
 module_param(enable, bool, 0444);
 MODULE_PARM_DESC(enable, "Enable PC-Speaker sound.");
+module_param(nopcm, bool, 0444);
+MODULE_PARM_DESC(nopcm, "Disable PC-Speaker PCM sound. Only beeps remain.");
 
 struct snd_pcsp pcsp_chip;
 
@@ -43,13 +46,16 @@ static int __devinit snd_pcsp_create(struct snd_card *card)
 	int err;
 	int div, min_div, order;
 
-	hrtimer_get_res(CLOCK_MONOTONIC, &tp);
-	if (tp.tv_sec || tp.tv_nsec > PCSP_MAX_PERIOD_NS) {
-		printk(KERN_ERR "PCSP: Timer resolution is not sufficient "
-		       "(%linS)\n", tp.tv_nsec);
-		printk(KERN_ERR "PCSP: Make sure you have HPET and ACPI "
-		       "enabled.\n");
-		return -EIO;
+	if (!nopcm) {
+		hrtimer_get_res(CLOCK_MONOTONIC, &tp);
+		if (tp.tv_sec || tp.tv_nsec > PCSP_MAX_PERIOD_NS) {
+			printk(KERN_ERR "PCSP: Timer resolution is not sufficient "
+				"(%linS)\n", tp.tv_nsec);
+			printk(KERN_ERR "PCSP: Make sure you have HPET and ACPI "
+				"enabled.\n");
+			printk(KERN_ERR "PCSP: Turned into nopcm mode.\n");
+			nopcm = 1;
+		}
 	}
 
 	if (loops_per_jiffy >= PCSP_MIN_LPJ && tp.tv_nsec <= PCSP_MIN_PERIOD_NS)
@@ -107,12 +113,14 @@ static int __devinit snd_card_pcsp_probe(int devnum, struct device *dev)
 		snd_card_free(card);
 		return err;
 	}
-	err = snd_pcsp_new_pcm(&pcsp_chip);
-	if (err < 0) {
-		snd_card_free(card);
-		return err;
+	if (!nopcm) {
+		err = snd_pcsp_new_pcm(&pcsp_chip);
+		if (err < 0) {
+			snd_card_free(card);
+			return err;
+		}
 	}
-	err = snd_pcsp_new_mixer(&pcsp_chip);
+	err = snd_pcsp_new_mixer(&pcsp_chip, nopcm);
 	if (err < 0) {
 		snd_card_free(card);
 		return err;
diff --git a/sound/drivers/pcsp/pcsp.h b/sound/drivers/pcsp/pcsp.h
index 174dd2ff0f22..1e123077923d 100644
--- a/sound/drivers/pcsp/pcsp.h
+++ b/sound/drivers/pcsp/pcsp.h
@@ -83,6 +83,6 @@ extern enum hrtimer_restart pcsp_do_timer(struct hrtimer *handle);
 extern void pcsp_sync_stop(struct snd_pcsp *chip);
 
 extern int snd_pcsp_new_pcm(struct snd_pcsp *chip);
-extern int snd_pcsp_new_mixer(struct snd_pcsp *chip);
+extern int snd_pcsp_new_mixer(struct snd_pcsp *chip, int nopcm);
 
 #endif
diff --git a/sound/drivers/pcsp/pcsp_mixer.c b/sound/drivers/pcsp/pcsp_mixer.c
index 903bc846763f..02e05552632b 100644
--- a/sound/drivers/pcsp/pcsp_mixer.c
+++ b/sound/drivers/pcsp/pcsp_mixer.c
@@ -119,24 +119,43 @@ static int pcsp_pcspkr_put(struct snd_kcontrol *kcontrol,
 	.put =		pcsp_##ctl_type##_put, \
 }
 
-static struct snd_kcontrol_new __devinitdata snd_pcsp_controls[] = {
+static struct snd_kcontrol_new __devinitdata snd_pcsp_controls_pcm[] = {
 	PCSP_MIXER_CONTROL(enable, "Master Playback Switch"),
 	PCSP_MIXER_CONTROL(treble, "BaseFRQ Playback Volume"),
+};
+
+static struct snd_kcontrol_new __devinitdata snd_pcsp_controls_spkr[] = {
 	PCSP_MIXER_CONTROL(pcspkr, "PC Speaker Playback Switch"),
 };
 
-int __devinit snd_pcsp_new_mixer(struct snd_pcsp *chip)
+static int __devinit snd_pcsp_ctls_add(struct snd_pcsp *chip,
+	struct snd_kcontrol_new *ctls, int num)
 {
-	struct snd_card *card = chip->card;
 	int i, err;
+	struct snd_card *card = chip->card;
+	for (i = 0; i < num; i++) {
+		err = snd_ctl_add(card, snd_ctl_new1(ctls + i, chip));
+		if (err < 0)
+			return err;
+	}
+	return 0;
+}
+
+int __devinit snd_pcsp_new_mixer(struct snd_pcsp *chip, int nopcm)
+{
+	int err;
+	struct snd_card *card = chip->card;
 
-	for (i = 0; i < ARRAY_SIZE(snd_pcsp_controls); i++) {
-		err = snd_ctl_add(card,
-				 snd_ctl_new1(snd_pcsp_controls + i,
-					      chip));
+	if (!nopcm) {
+		err = snd_pcsp_ctls_add(chip, snd_pcsp_controls_pcm,
+			ARRAY_SIZE(snd_pcsp_controls_pcm));
 		if (err < 0)
 			return err;
 	}
+	err = snd_pcsp_ctls_add(chip, snd_pcsp_controls_spkr,
+		ARRAY_SIZE(snd_pcsp_controls_spkr));
+	if (err < 0)
+		return err;
 
 	strcpy(card->mixername, "PC-Speaker");