]> git.ipfire.org Git - thirdparty/freeswitch.git/commitdiff
skypiax: new snd-dummy.c don't care no more about HZ in kernel
authorGiovanni Maruzzelli <gmaruzz@gmail.com>
Fri, 26 Feb 2010 10:44:41 +0000 (10:44 +0000)
committerGiovanni Maruzzelli <gmaruzz@gmail.com>
Fri, 26 Feb 2010 10:44:41 +0000 (10:44 +0000)
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@16834 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/endpoints/mod_skypiax/alsa/dummy.c

index df36e1141ea54a75695afacafcc5607a96a560ef..9df10793f7d6e038117ddd61cf53a9e3ad62df8c 100644 (file)
@@ -44,72 +44,6 @@ MODULE_SUPPORTED_DEVICE("{{ALSA,Dummy soundcard}}");
 #define MAX_PCM_SUBSTREAMS     128
 #define MAX_MIDI_DEVICES       2
 
-#if 0                                                  /* emu10k1 emulation */
-#define MAX_BUFFER_SIZE                (128 * 1024)
-static int emu10k1_playback_constraints(struct snd_pcm_runtime *runtime)
-{
-       int err;
-       err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
-       if (err < 0)
-               return err;
-       err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 256, UINT_MAX);
-       if (err < 0)
-               return err;
-       return 0;
-}
-
-#define add_playback_constraints emu10k1_playback_constraints
-#endif
-
-#if 0                                                  /* RME9652 emulation */
-#define MAX_BUFFER_SIZE                (26 * 64 * 1024)
-#define USE_FORMATS            SNDRV_PCM_FMTBIT_S32_LE
-#define USE_CHANNELS_MIN       26
-#define USE_CHANNELS_MAX       26
-#define USE_PERIODS_MIN                2
-#define USE_PERIODS_MAX                2
-#endif
-
-#if 0                                                  /* ICE1712 emulation */
-#define MAX_BUFFER_SIZE                (256 * 1024)
-#define USE_FORMATS            SNDRV_PCM_FMTBIT_S32_LE
-#define USE_CHANNELS_MIN       10
-#define USE_CHANNELS_MAX       10
-#define USE_PERIODS_MIN                1
-#define USE_PERIODS_MAX                1024
-#endif
-
-#if 0                                                  /* UDA1341 emulation */
-#define MAX_BUFFER_SIZE                (16380)
-#define USE_FORMATS            SNDRV_PCM_FMTBIT_S16_LE
-#define USE_CHANNELS_MIN       2
-#define USE_CHANNELS_MAX       2
-#define USE_PERIODS_MIN                2
-#define USE_PERIODS_MAX                255
-#endif
-
-#if 0                                                  /* simple AC97 bridge (intel8x0) with 48kHz AC97 only codec */
-#define USE_FORMATS            SNDRV_PCM_FMTBIT_S16_LE
-#define USE_CHANNELS_MIN       2
-#define USE_CHANNELS_MAX       2
-#define USE_RATE               SNDRV_PCM_RATE_48000
-#define USE_RATE_MIN           48000
-#define USE_RATE_MAX           48000
-#endif
-
-#if 0                                                  /* CA0106 */
-#define USE_FORMATS            SNDRV_PCM_FMTBIT_S16_LE
-#define USE_CHANNELS_MIN       2
-#define USE_CHANNELS_MAX       2
-#define USE_RATE               (SNDRV_PCM_RATE_48000|SNDRV_PCM_RATE_96000|SNDRV_PCM_RATE_192000)
-#define USE_RATE_MIN           48000
-#define USE_RATE_MAX           192000
-#define MAX_BUFFER_SIZE                ((65536-64)*8)
-#define MAX_PERIOD_SIZE                (65536-64)
-#define USE_PERIODS_MIN                2
-#define USE_PERIODS_MAX                8
-#endif
-
 
 /* defaults */
 #ifndef MAX_BUFFER_SIZE
@@ -151,7 +85,6 @@ static int enable[SNDRV_CARDS] = { 1,[1 ... (SNDRV_CARDS - 1)] = 0 };
 static int pcm_devs[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1 };
 static int pcm_substreams[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 128 };
 
-//static int midi_devs[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
 
 module_param_array(index, int, NULL, 0444);
 MODULE_PARM_DESC(index, "Index value for dummy soundcard.");
@@ -163,11 +96,9 @@ module_param_array(pcm_devs, int, NULL, 0444);
 MODULE_PARM_DESC(pcm_devs, "PCM devices # (0-4) for dummy driver.");
 module_param_array(pcm_substreams, int, NULL, 0444);
 MODULE_PARM_DESC(pcm_substreams, "PCM substreams # (1-64) for dummy driver.");
-//module_param_array(midi_devs, int, NULL, 0444);
-//MODULE_PARM_DESC(midi_devs, "MIDI devices # (0-2) for dummy driver.");
 
 static struct platform_device *devices[SNDRV_CARDS];
-static struct timer_list giovatimer;   //giova
+static struct timer_list giovatimer;
 static int giovastarted = 0;
 static int giovaindex = 0;
 static spinlock_t giovalock;
@@ -213,8 +144,6 @@ static inline void snd_card_dummy_pcm_timer_start(struct snd_dummy_pcm *dpcm)
        int i;
        int found = 0;
 
-
-//printk("giova: 1 timer_start %d %p\n", __LINE__, dpcm);
        for (i = 0; i < giovaindex + 1; i++) {
                if (i > MAX_PCM_SUBSTREAMS || giovaindex > MAX_PCM_SUBSTREAMS) {
                        printk("giova, %s:%d, i=%d, giovaindex=%d dpcm=%p\n", __FILE__, __LINE__, i, giovaindex, dpcm);
@@ -228,17 +157,13 @@ static inline void snd_card_dummy_pcm_timer_start(struct snd_dummy_pcm *dpcm)
        if (!found) {
                printk("skypiax: start, NOT found?\n");
        }
-
-//printk("giova: 2 timer_start %d %p\n", __LINE__, dpcm);
 }
 
 static inline void snd_card_dummy_pcm_timer_stop(struct snd_dummy_pcm *dpcm)
 {
-       //del_timer(&dpcm->timer);
        int i;
        int found = 0;
 
-//printk("giova: 1 timer_stop %d %p\n", __LINE__, dpcm);
        for (i = 0; i < giovaindex + 1; i++) {
 
                if (i > MAX_PCM_SUBSTREAMS || giovaindex > MAX_PCM_SUBSTREAMS) {
@@ -250,14 +175,8 @@ static inline void snd_card_dummy_pcm_timer_stop(struct snd_dummy_pcm *dpcm)
                }
        }
        if (!found) {
-               //printk("skypiax: stop, NOT found?\n");
        } else {
-               //printk("skypiax: stop, YES found!\n"); 
        }
-
-
-
-//printk("giova: 2 timer_stop %d %p\n", __LINE__, dpcm);
 }
 
 static int snd_card_dummy_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
@@ -266,24 +185,20 @@ static int snd_card_dummy_pcm_trigger(struct snd_pcm_substream *substream, int c
        struct snd_dummy_pcm *dpcm = runtime->private_data;
        int err = 0;
 
-       //spin_lock(&dpcm->lock, flags);
        spin_lock_bh(&giovalock);
        switch (cmd) {
        case SNDRV_PCM_TRIGGER_START:
        case SNDRV_PCM_TRIGGER_RESUME:
-//printk("giova: trigger timer_start %d %p\n", __LINE__, dpcm);
                snd_card_dummy_pcm_timer_start(dpcm);
                break;
        case SNDRV_PCM_TRIGGER_STOP:
        case SNDRV_PCM_TRIGGER_SUSPEND:
-//printk("giova: trigger timer_stop %d %p\n", __LINE__, dpcm);
                snd_card_dummy_pcm_timer_stop(dpcm);
                break;
        default:
                err = -EINVAL;
                break;
        }
-       //spin_unlock(&dpcm->lock, flags);
        spin_unlock_bh(&giovalock);
        return 0;
 }
@@ -307,19 +222,16 @@ static int snd_card_dummy_pcm_prepare(struct snd_pcm_substream *substream)
        dpcm->pcm_buf_pos = 0;
        snd_pcm_format_set_silence(runtime->format, runtime->dma_area, bytes_to_samples(runtime, runtime->dma_bytes));
 
-//printk("giova: prepare %d %p\n", __LINE__, dpcm);
        return 0;
 }
 
 static void snd_card_dummy_pcm_timer_function(unsigned long data)
 {
-       //struct snd_dummy_pcm *dpcm = (struct snd_dummy_pcm *)data;
        struct snd_dummy_pcm *dpcm = NULL;
-       //unsigned long flags;
        int i;
 
 
-       giovatimer.expires = (HZ / 100) + jiffies;
+       giovatimer.expires = 1 + jiffies;
        add_timer(&giovatimer);
 
        for (i = 0; i < giovaindex + 1; i++) {
@@ -327,8 +239,6 @@ static void snd_card_dummy_pcm_timer_function(unsigned long data)
                if (i > MAX_PCM_SUBSTREAMS || giovaindex > MAX_PCM_SUBSTREAMS) {
                        printk("giova, %s:%d, i=%d, giovaindex=%d dpcm=%p\n", __FILE__, __LINE__, i, giovaindex, dpcm);
                }
-//printk("giova: timer_func %d i=%d\n", __LINE__, i);
-
                if (giovadpcms[i].started != 1)
                        continue;
                dpcm = giovadpcms[i].dpcm;
@@ -336,23 +246,15 @@ static void snd_card_dummy_pcm_timer_function(unsigned long data)
                        printk("giova: timer_func %d %d NULL: continue\n", __LINE__, i);
                        continue;
                }
-               //if (in_irq())
-                       //printk("giova: timer_func %d %d we are in HARDWARE IRQ\n", __LINE__, i);
-               //if(in_softirq())
-               //printk("giova: timer_func %d %d we are in SOFT IRQ\n", __LINE__, i);
-//printk("giova: timer_func %d %d\n", __LINE__, i);
-               //spin_lock_irqsave(&dpcm->lock, flags);
                spin_lock_bh(&dpcm->lock);
-               dpcm->pcm_irq_pos += dpcm->pcm_bps * (HZ / 100);
-               dpcm->pcm_buf_pos += dpcm->pcm_bps * (HZ / 100);
+               dpcm->pcm_irq_pos += dpcm->pcm_bps;
+               dpcm->pcm_buf_pos += dpcm->pcm_bps;
                dpcm->pcm_buf_pos %= dpcm->pcm_buffer_size * dpcm->pcm_hz;
                if (dpcm->pcm_irq_pos >= dpcm->pcm_period_size * dpcm->pcm_hz) {
                        dpcm->pcm_irq_pos %= dpcm->pcm_period_size * dpcm->pcm_hz;
-                       //spin_unlock_irqrestore(&dpcm->lock, flags);
                        spin_unlock_bh(&dpcm->lock);
                        snd_pcm_period_elapsed(dpcm->substream);
                } else {
-                       //spin_unlock_irqrestore(&dpcm->lock, flags);
                        spin_unlock_bh(&dpcm->lock);
                }
        }
@@ -363,9 +265,7 @@ static snd_pcm_uframes_t snd_card_dummy_pcm_pointer(struct snd_pcm_substream *su
        struct snd_pcm_runtime *runtime = substream->runtime;
        struct snd_dummy_pcm *dpcm = runtime->private_data;
 
-//printk("giova: pointer %d %p\n", __LINE__, dpcm);
        return bytes_to_frames(runtime, dpcm->pcm_buf_pos / dpcm->pcm_hz);
-       //return (dpcm->pcm_buf_pos / dpcm->pcm_hz) / 2;
 }
 
 static struct snd_pcm_hardware snd_card_dummy_playback = {
@@ -403,9 +303,7 @@ static struct snd_pcm_hardware snd_card_dummy_capture = {
 static void snd_card_dummy_runtime_free(struct snd_pcm_runtime *runtime)
 {
        int i;
-//int found=0;
 
-//printk("snd_card_dummy_runtime_free giova 1 giovaindex=%d dpcm=%p runtime=%p\n", giovaindex, runtime->private_data, runtime);
        spin_lock_bh(&giovalock);
 
        for (i = 0; i < giovaindex; i++) {
@@ -413,15 +311,9 @@ static void snd_card_dummy_runtime_free(struct snd_pcm_runtime *runtime)
                if (i > MAX_PCM_SUBSTREAMS || giovaindex > MAX_PCM_SUBSTREAMS) {
                        printk("giova, %s:%d, i=%d, giovaindex=%d \n", __FILE__, __LINE__, i, giovaindex);
                }
-               //if((giovadpcms[i].substream == substream)  && (giovadpcms[i].dpcm == dpcm)){
                if ((giovadpcms[i].dpcm == runtime->private_data)) {
-                       //printk("giova, %s:%d, i=%d, giovaindex=%d %p==%p YES I AM!!!!\n", __FILE__, __LINE__, i, giovaindex, giovadpcms[i].dpcm , runtime->private_data);
-                       //giovadpcms[i].dpcm = NULL;
-                       //giovadpcms[i].substream = NULL;
                        giovadpcms[i].started = 0;
-                       //break;
                } else {
-                       //printk("giova, %s:%d, i=%d, giovaindex=%d %p!=%p NOT ME\n", __FILE__, __LINE__, i, giovaindex, giovadpcms[i].dpcm , runtime->private_data);
                }
        }
 
@@ -445,30 +337,21 @@ static struct snd_dummy_pcm *new_pcm_stream(struct snd_pcm_substream *substream)
        int i;
        int found = 0;
 
-       //printk("giova, %s:%d, i=%d, giovaindex=%d %p==%p YES I AM!!!!\n", __FILE__, __LINE__, i, giovaindex, giovadpcms[i].dpcm , runtime->private_data);
-       //printk("giova, %s:%d, giovaindex=%d\n", __FILE__, __LINE__, giovaindex);
        dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL);
-       //printk("giova, %s:%d, giovaindex=%d\n", __FILE__, __LINE__, giovaindex);
        if (!dpcm) {
-               //spin_unlock_bh(&giovalock);
                printk("giova, %s:%d, giovaindex=%d NO MEMORY!!!!\n", __FILE__, __LINE__, giovaindex);
                return dpcm;
        }
-       //printk("giova, %s:%d, giovaindex=%d dpcm=%p\n", __FILE__, __LINE__, giovaindex, dpcm);
        init_timer(&dpcm->timer);
-       //dpcm->timer.data = (unsigned long) dpcm;
-       //dpcm->timer.function = snd_card_dummy_pcm_timer_function;
        spin_lock_init(&dpcm->lock);
        dpcm->substream = substream;
 
        spin_lock_bh(&giovalock);
-       //printk("giova 1 giovaindex=%d dpcm=%p substream=%p sizeof=%lu\n", giovaindex, dpcm, substream, sizeof(*dpcm));
        for (i = 0; i < giovaindex; i++) {
 
                if (i > MAX_PCM_SUBSTREAMS || giovaindex > MAX_PCM_SUBSTREAMS) {
                        printk("giova, %s:%d, i=%d, giovaindex=%d dpcm=%p\n", __FILE__, __LINE__, i, giovaindex, dpcm);
                }
-               //if((giovadpcms[i].substream == substream)  && (giovadpcms[i].dpcm == dpcm))
                if ((giovadpcms[i].substream == substream)) {
                        found = 1;
                        break;
@@ -480,7 +363,6 @@ static struct snd_dummy_pcm *new_pcm_stream(struct snd_pcm_substream *substream)
 
                giovadpcms[giovaindex].substream = substream;
                giovaindex++;
-               //printk("giova 2 giovaindex=%d dpcm=%p substream=%p\n", giovaindex, dpcm, substream);
        }
 
 
@@ -495,7 +377,6 @@ static struct snd_dummy_pcm *new_pcm_stream(struct snd_pcm_substream *substream)
                        giovadpcms[i].dpcm = dpcm;
                        giovadpcms[i].started = 0;
                        found = 1;
-                       //printk("giova 3 giovaindex=%d dpcm=%p substream=%p\n", giovaindex, dpcm, substream);
                        break;
                }
 
@@ -505,7 +386,6 @@ static struct snd_dummy_pcm *new_pcm_stream(struct snd_pcm_substream *substream)
        if (!found) {
                printk("skypiax giovaindex=%d NOT found????\n", giovaindex);
        }
-       //printk("giova, %s:%d, giovaindex=%d\n", __FILE__, __LINE__, giovaindex);
        return dpcm;
 }
 
@@ -517,7 +397,6 @@ static int snd_card_dummy_playback_open(struct snd_pcm_substream *substream)
 
        if ((dpcm = new_pcm_stream(substream)) == NULL)
                return -ENOMEM;
-       //printk("giova, %s:%d, giovaindex=%d dpcm=%p\n", __FILE__, __LINE__, giovaindex, dpcm);
        runtime->private_data = dpcm;
        /* makes the infrastructure responsible for freeing dpcm */
        runtime->private_free = snd_card_dummy_runtime_free;
@@ -543,7 +422,6 @@ static int snd_card_dummy_capture_open(struct snd_pcm_substream *substream)
 
        if ((dpcm = new_pcm_stream(substream)) == NULL)
                return -ENOMEM;
-       //printk("giova, %s:%d, giovaindex=%d dpcm=%p\n", __FILE__, __LINE__, giovaindex, dpcm);
        runtime->private_data = dpcm;
        /* makes the infrastructure responsible for freeing dpcm */
        runtime->private_free = snd_card_dummy_runtime_free;
@@ -563,14 +441,12 @@ static int snd_card_dummy_capture_open(struct snd_pcm_substream *substream)
 
 static int snd_card_dummy_playback_close(struct snd_pcm_substream *substream)
 {
-//printk("play giova 1 giovaindex=%d dpcm=%p substream=%p\n", giovaindex, substream->private_data, substream);
        snd_card_dummy_pcm_timer_stop(substream->private_data);
        return 0;
 }
 
 static int snd_card_dummy_capture_close(struct snd_pcm_substream *substream)
 {
-//printk("capt giova 2 giovaindex=%d dpcm=%p substream=%p\n", giovaindex, substream->private_data, substream);
        snd_card_dummy_pcm_timer_stop(substream->private_data);
        return 0;
 }
@@ -638,17 +514,12 @@ static int snd_dummy_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_el
 {
        struct snd_dummy *dummy = snd_kcontrol_chip(kcontrol);
        int addr = kcontrol->private_value;
-       //unsigned long flags;
 
        if (in_irq())
                printk("giova: line %d we are in HARDWARE IRQ\n", __LINE__);
-//printk("giova: volume get %d %d\n", __LINE__, addr);
-       //spin_lock_irq(&dummy->mixer_lock);
-       //spin_lock_irqsave(&dummy->mixer_lock, flags);
        spin_lock_bh(&dummy->mixer_lock);
        ucontrol->value.integer.value[0] = dummy->mixer_volume[addr][0];
        ucontrol->value.integer.value[1] = dummy->mixer_volume[addr][1];
-       //spin_unlock_irqrestore(&dummy->mixer_lock, flags);
        spin_unlock_bh(&dummy->mixer_lock);
        return 0;
 }
@@ -658,7 +529,6 @@ static int snd_dummy_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_el
        struct snd_dummy *dummy = snd_kcontrol_chip(kcontrol);
        int change, addr = kcontrol->private_value;
        int left, right;
-       //unsigned long flags;
 
        if (in_irq())
                printk("giova: line %d we are in HARDWARE IRQ\n", __LINE__);
@@ -672,15 +542,10 @@ static int snd_dummy_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_el
                right = -50;
        if (right > 100)
                right = 100;
-//printk("giova: volume put %d %d\n", __LINE__, addr);
-       //spin_lock_irq(&dummy->mixer_lock);
-       //spin_lock_irqsave(&dummy->mixer_lock, flags);
        spin_lock_bh(&dummy->mixer_lock);
        change = dummy->mixer_volume[addr][0] != left || dummy->mixer_volume[addr][1] != right;
        dummy->mixer_volume[addr][0] = left;
        dummy->mixer_volume[addr][1] = right;
-       //spin_unlock_irq(&dummy->mixer_lock);
-       //spin_unlock_irqrestore(&dummy->mixer_lock, flags);
        spin_unlock_bh(&dummy->mixer_lock);
        return change;
 }
@@ -699,19 +564,13 @@ static int snd_dummy_capsrc_get(struct snd_kcontrol *kcontrol, struct snd_ctl_el
 {
        struct snd_dummy *dummy = snd_kcontrol_chip(kcontrol);
        int addr = kcontrol->private_value;
-       //unsigned long flags;
 
        if (in_irq())
                printk("giova: line %d we are in HARDWARE IRQ\n", __LINE__);
-       //spin_lock_irq(&dummy->mixer_lock);
-       //spin_lock_irqsave(&dummy->mixer_lock, flags);
        spin_lock_bh(&dummy->mixer_lock);
        ucontrol->value.integer.value[0] = dummy->capture_source[addr][0];
        ucontrol->value.integer.value[1] = dummy->capture_source[addr][1];
-       //spin_unlock_irq(&dummy->mixer_lock);
-       //spin_unlock_irqrestore(&dummy->mixer_lock, flags);
        spin_unlock_bh(&dummy->mixer_lock);
-//printk("giova: capsrc_get %d %d\n", __LINE__, addr);
        return 0;
 }
 
@@ -720,22 +579,16 @@ static int snd_dummy_capsrc_put(struct snd_kcontrol *kcontrol, struct snd_ctl_el
        struct snd_dummy *dummy = snd_kcontrol_chip(kcontrol);
        int change, addr = kcontrol->private_value;
        int left, right;
-       //unsigned long flags;
 
        if (in_irq())
                printk("giova: line %d we are in HARDWARE IRQ\n", __LINE__);
        left = ucontrol->value.integer.value[0] & 1;
        right = ucontrol->value.integer.value[1] & 1;
-       //spin_lock_irq(&dummy->mixer_lock);
-       //spin_lock_irqsave(&dummy->mixer_lock, flags);
        spin_lock_bh(&dummy->mixer_lock);
        change = dummy->capture_source[addr][0] != left && dummy->capture_source[addr][1] != right;
        dummy->capture_source[addr][0] = left;
        dummy->capture_source[addr][1] = right;
-       //spin_unlock_irq(&dummy->mixer_lock);
-       //spin_unlock_irqrestore(&dummy->mixer_lock, flags);
        spin_unlock_bh(&dummy->mixer_lock);
-//printk("giova: capsrc_put %d %d\n", __LINE__, addr);
        return change;
 }
 
@@ -758,11 +611,8 @@ static int __devinit snd_card_dummy_new_mixer(struct snd_dummy *dummy)
        unsigned int idx;
        int err;
 
-       //giova if (snd_BUG_ON(!dummy))
-       //giova return -EINVAL;
        spin_lock_init(&dummy->mixer_lock);
        strcpy(card->mixername, "Dummy Mixer");
-//printk("giova: new_mixer %d\n", __LINE__);
        return 0;                                       //giova no mixer
 
        for (idx = 0; idx < ARRAY_SIZE(snd_dummy_controls); idx++) {
@@ -784,10 +634,6 @@ static int __devinit snd_dummy_probe(struct platform_device *devptr)
        if (card == NULL)
                return -ENOMEM;
 
-       //giova err = snd_card_create(index[dev], id[dev], THIS_MODULE,
-       //giova sizeof(struct snd_dummy), &card);
-       //giova if (err < 0)
-       //giova return err;
        dummy = card->private_data;
        dummy->card = card;
        for (idx = 0; idx < MAX_PCM_DEVICES && idx < pcm_devs[dev]; idx++) {
@@ -892,12 +738,11 @@ static int __init alsa_card_dummy_init(void)
                        giovadpcms[i].started = 0;
                }
                init_timer(&giovatimer);
-               //giovatimer.data = (unsigned long) dpcm;
                giovatimer.data = (unsigned long) &giovadpcms;
                giovatimer.function = snd_card_dummy_pcm_timer_function;
-               giovatimer.expires = (HZ / 100) + jiffies;
+               giovatimer.expires = 1 + jiffies;
                add_timer(&giovatimer);
-               printk("snd-dummy skypiax driver, %s:%d working on a machine with %dHZ kernel\n", __FILE__, __LINE__, HZ);
+               printk("snd-dummy skypiax driver version: 3, %s:%d working on a machine with %dHZ kernel\n", __FILE__, __LINE__, HZ);
                spin_unlock_bh(&giovalock);
        }