ALSA: asihpi - Remove unused subsys pointer from all HPI functions.

asihpi.c don't link playback and capture streams, there is too much
offset between them.

Signed-off-by: Eliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

5 files changed, 1270 insertions, 1502 deletions

diff --git a/sound/pci/asihpi/asihpi.c b/sound/pci/asihpi/asihpi.c
index 31d7295f5c71..8dda81aac433 100644
--- a/sound/pci/asihpi/asihpi.c
+++ b/sound/pci/asihpi/asihpi.c
@@ -97,13 +97,14 @@ static const int mixer_dump;
 #define DEFAULT_SAMPLERATE 44100
 static int adapter_fs = DEFAULT_SAMPLERATE;
 
-static struct hpi_hsubsys *ss;  /* handle to HPI audio subsystem */
-
 /* defaults */
 #define PERIODS_MIN 2
 #define PERIOD_BYTES_MIN  2048
 #define BUFFER_BYTES_MAX (512 * 1024)
 
+/* convert stream to character */
+#define SCHR(s) ((s == SNDRV_PCM_STREAM_PLAYBACK) ? 'P' : 'C')
+
 /*#define TIMER_MILLISECONDS 20
 #define FORCE_TIMER_JIFFIES ((TIMER_MILLISECONDS * HZ + 999)/1000)
 */
@@ -149,8 +150,8 @@ struct snd_card_asihpi_pcm {
         struct timer_list timer;
         unsigned int respawn_timer;
         unsigned int hpi_buffer_attached;
-        unsigned int pcm_size;
-        unsigned int pcm_count;
+        unsigned int buffer_bytes;
+        unsigned int period_bytes;
         unsigned int bytes_per_sec;
         unsigned int pcm_buf_host_rw_ofs; /* Host R/W pos */
         unsigned int pcm_buf_dma_ofs;   /* DMA R/W offset in buffer */
@@ -165,7 +166,6 @@ struct snd_card_asihpi_pcm {
 /* Functions to allow driver to give a buffer to HPI for busmastering */
 
 static u16 hpi_stream_host_buffer_attach(
-        struct hpi_hsubsys *hS,
         u32 h_stream,   /* handle to outstream. */
         u32 size_in_bytes, /* size in bytes of bus mastering buffer */
         u32 pci_address
@@ -192,10 +192,7 @@ static u16 hpi_stream_host_buffer_attach(
         return hr.error;
 }
 
-static u16 hpi_stream_host_buffer_detach(
-        struct hpi_hsubsys *hS,
-        u32  h_stream
-)
+static u16 hpi_stream_host_buffer_detach(u32  h_stream)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -216,24 +213,23 @@ static u16 hpi_stream_host_buffer_detach(
         return hr.error;
 }
 
-static inline u16 hpi_stream_start(struct hpi_hsubsys *hS, u32 h_stream)
+static inline u16 hpi_stream_start(u32 h_stream)
 {
         if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
-                return hpi_outstream_start(hS, h_stream);
+                return hpi_outstream_start(h_stream);
         else
-                return hpi_instream_start(hS, h_stream);
+                return hpi_instream_start(h_stream);
 }
 
-static inline u16 hpi_stream_stop(struct hpi_hsubsys *hS, u32 h_stream)
+static inline u16 hpi_stream_stop(u32 h_stream)
 {
         if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
-                return hpi_outstream_stop(hS, h_stream);
+                return hpi_outstream_stop(h_stream);
         else
-                return hpi_instream_stop(hS, h_stream);
+                return hpi_instream_stop(h_stream);
 }
 
 static inline u16 hpi_stream_get_info_ex(
-    struct hpi_hsubsys *hS,
     u32 h_stream,
     u16        *pw_state,
     u32        *pbuffer_size,
@@ -244,42 +240,41 @@ static inline u16 hpi_stream_get_info_ex(
 {
         u16 e;
         if (hpi_handle_object(h_stream)  ==  HPI_OBJ_OSTREAM)
-                e = hpi_outstream_get_info_ex(hS, h_stream, pw_state,
+                e = hpi_outstream_get_info_ex(h_stream, pw_state,
                                         pbuffer_size, pdata_in_buffer,
                                         psample_count, pauxiliary_data);
         else
-                e = hpi_instream_get_info_ex(hS, h_stream, pw_state,
+                e = hpi_instream_get_info_ex(h_stream, pw_state,
                                         pbuffer_size, pdata_in_buffer,
                                         psample_count, pauxiliary_data);
         return e;
 }
 
-static inline u16 hpi_stream_group_add(struct hpi_hsubsys *hS,
+static inline u16 hpi_stream_group_add(
                                         u32 h_master,
                                         u32 h_stream)
 {
         if (hpi_handle_object(h_master) ==  HPI_OBJ_OSTREAM)
-                return hpi_outstream_group_add(hS, h_master, h_stream);
+                return hpi_outstream_group_add(h_master, h_stream);
         else
-                return hpi_instream_group_add(hS, h_master, h_stream);
+                return hpi_instream_group_add(h_master, h_stream);
 }
 
-static inline u16 hpi_stream_group_reset(struct hpi_hsubsys *hS,
-                                                u32 h_stream)
+static inline u16 hpi_stream_group_reset(u32 h_stream)
 {
         if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
-                return hpi_outstream_group_reset(hS, h_stream);
+                return hpi_outstream_group_reset(h_stream);
         else
-                return hpi_instream_group_reset(hS, h_stream);
+                return hpi_instream_group_reset(h_stream);
 }
 
-static inline u16 hpi_stream_group_get_map(struct hpi_hsubsys *hS,
+static inline u16 hpi_stream_group_get_map(
                                 u32 h_stream, u32 *mo, u32 *mi)
 {
         if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
-                return hpi_outstream_group_get_map(hS, h_stream, mo, mi);
+                return hpi_outstream_group_get_map(h_stream, mo, mi);
         else
-                return hpi_instream_group_get_map(hS, h_stream, mo, mi);
+                return hpi_instream_group_get_map(h_stream, mo, mi);
 }
 
 static u16 handle_error(u16 err, int line, char *filename)
@@ -335,7 +330,7 @@ static snd_pcm_format_t hpi_to_alsa_formats[] = {
          */
         -1
 #else
-        /* SNDRV_PCM_FORMAT_S24_3LE */  /* { HPI_FORMAT_PCM24_SIGNED        15 */
+        /* SNDRV_PCM_FORMAT_S24_3LE */ /* HPI_FORMAT_PCM24_SIGNED 15 */
 #endif
 };
 
@@ -378,7 +373,7 @@ static void snd_card_asihpi_pcm_samplerates(struct snd_card_asihpi *asihpi,
         } else {
                 /* on cards without SRC,
                    valid rates are determined by sampleclock */
-                err = hpi_mixer_get_control(ss, asihpi->h_mixer,
+                err = hpi_mixer_get_control(asihpi->h_mixer,
                                           HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
                                           HPI_CONTROL_SAMPLECLOCK, &h_control);
                 if (err) {
@@ -387,7 +382,7 @@ static void snd_card_asihpi_pcm_samplerates(struct snd_card_asihpi *asihpi,
                 }
 
                 for (idx = 0; idx < 100; idx++) {
-                        if (hpi_sample_clock_query_local_rate(ss,
+                        if (hpi_sample_clock_query_local_rate(
                                 h_control, idx, &sample_rate)) {
                                 if (!idx)
                                         snd_printk(KERN_ERR
@@ -480,10 +475,10 @@ static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream,
                         format, params_rate(params), 0, 0));
 
         if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
-                if (hpi_instream_reset(ss, dpcm->h_stream) != 0)
+                if (hpi_instream_reset(dpcm->h_stream) != 0)
                         return -EINVAL;
 
-                if (hpi_instream_set_format(ss,
+                if (hpi_instream_set_format(
                         dpcm->h_stream, &dpcm->format) != 0)
                         return -EINVAL;
         }
@@ -491,10 +486,10 @@ static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream,
         dpcm->hpi_buffer_attached = 0;
         if (card->support_mmap) {
 
-                err = hpi_stream_host_buffer_attach(ss, dpcm->h_stream,
+                err = hpi_stream_host_buffer_attach(dpcm->h_stream,
                         params_buffer_bytes(params),  runtime->dma_addr);
                 if (err == 0) {
-                        snd_printd(KERN_INFO
+                        VPRINTK1(KERN_INFO
                                 "stream_host_buffer_attach succeeded %u %lu\n",
                                 params_buffer_bytes(params),
                                 (unsigned long)runtime->dma_addr);
@@ -505,11 +500,11 @@ static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream,
                         return -ENOMEM;
                 }
 
-                err = hpi_stream_get_info_ex(ss, dpcm->h_stream, NULL,
+                err = hpi_stream_get_info_ex(dpcm->h_stream, NULL,
                                                 &dpcm->hpi_buffer_attached,
                                                 NULL, NULL, NULL);
 
-                snd_printd(KERN_INFO "stream_host_buffer_attach status 0x%x\n",
+                VPRINTK1(KERN_INFO "stream_host_buffer_attach status 0x%x\n",
                                 dpcm->hpi_buffer_attached);
         }
         bytes_per_sec = params_rate(params) * params_channels(params);
@@ -520,10 +515,10 @@ static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream,
                 return -EINVAL;
 
         dpcm->bytes_per_sec = bytes_per_sec;
-        dpcm->pcm_size = params_buffer_bytes(params);
-        dpcm->pcm_count = params_period_bytes(params);
-        snd_printd(KERN_INFO "pcm_size=%d, pcm_count=%d, bps=%d\n",
-                        dpcm->pcm_size, dpcm->pcm_count, bytes_per_sec);
+        dpcm->buffer_bytes = params_buffer_bytes(params);
+        dpcm->period_bytes = params_period_bytes(params);
+        VPRINTK1(KERN_INFO "buffer_bytes=%d, period_bytes=%d, bps=%d\n",
+                        dpcm->buffer_bytes, dpcm->period_bytes, bytes_per_sec);
 
         return 0;
 }
@@ -534,7 +529,7 @@ snd_card_asihpi_hw_free(struct snd_pcm_substream *substream)
         struct snd_pcm_runtime *runtime = substream->runtime;
         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
         if (dpcm->hpi_buffer_attached)
-                hpi_stream_host_buffer_detach(ss, dpcm->h_stream);
+                hpi_stream_host_buffer_detach(dpcm->h_stream);
 
         snd_pcm_lib_free_pages(substream);
         return 0;
@@ -553,7 +548,8 @@ static void snd_card_asihpi_pcm_timer_start(struct snd_pcm_substream *
         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
         int expiry;
 
-        expiry = HZ / 100;; //? (dpcm->pcm_count * HZ / dpcm->bytes_per_sec);
+        expiry = HZ / 200;
+        /*? (dpcm->period_bytes * HZ / dpcm->bytes_per_sec); */
         expiry = max(expiry, 1); /* don't let it be zero! */
         dpcm->timer.expires = jiffies + expiry;
         dpcm->respawn_timer = 1;
@@ -577,8 +573,8 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
         struct snd_pcm_substream *s;
         u16 e;
 
-        snd_printd("Trigger %dstream %d\n",
-                        substream->stream, substream->number);
+        VPRINTK1(KERN_INFO "%c%d trigger\n",
+                        SCHR(substream->stream), substream->number);
         switch (cmd) {
         case SNDRV_PCM_TRIGGER_START:
                 snd_pcm_group_for_each_entry(s, substream) {
@@ -588,6 +584,10 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
                         if (snd_pcm_substream_chip(s) != card)
                                 continue;
 
+                        /* don't link Cap and Play */
+                        if (substream->stream != s->stream)
+                                continue;
+
                         if ((s->stream == SNDRV_PCM_STREAM_PLAYBACK) &&
                                 (card->support_mmap)) {
                                 /* How do I know how much valid data is present
@@ -596,10 +596,10 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
                                 * buffer is bigger it may contain even more
                                 * data??
                                 */
-                                unsigned int preload = ds->pcm_count * 1;
-                                VPRINTK2("Preload x%x\n", preload);
+                                unsigned int preload = ds->period_bytes * 1;
+                                VPRINTK2(KERN_INFO "%d preload x%x\n", s->number, preload);
                                 hpi_handle_error(hpi_outstream_write_buf(
-                                                ss, ds->h_stream,
+                                                ds->h_stream,
                                                 &runtime->dma_area[0],
                                                 preload,
                                                 &ds->format));
@@ -607,9 +607,10 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
                         }
 
                         if (card->support_grouping) {
-                                VPRINTK1("\t_group %dstream %d\n", s->stream,
+                                VPRINTK1(KERN_INFO "\t%c%d group\n",
+                                                SCHR(s->stream),
                                                 s->number);
-                                e = hpi_stream_group_add(ss,
+                                e = hpi_stream_group_add(
                                         dpcm->h_stream,
                                         ds->h_stream);
                                 if (!e) {
@@ -621,10 +622,11 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
                         } else
                                 break;
                 }
-                snd_printd("Start\n");
+                VPRINTK1(KERN_INFO "start\n");
                 /* start the master stream */
                 snd_card_asihpi_pcm_timer_start(substream);
-                hpi_handle_error(hpi_stream_start(ss, dpcm->h_stream));
+                if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+                        hpi_handle_error(hpi_stream_start(dpcm->h_stream));
                 break;
 
         case SNDRV_PCM_TRIGGER_STOP:
@@ -632,43 +634,46 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
                 snd_pcm_group_for_each_entry(s, substream) {
                         if (snd_pcm_substream_chip(s) != card)
                                 continue;
+                        /* don't link Cap and Play */
+                        if (substream->stream != s->stream)
+                                continue;
 
                         /*? workaround linked streams don't
                         transition to SETUP 20070706*/
                         s->runtime->status->state = SNDRV_PCM_STATE_SETUP;
 
                         if (card->support_grouping) {
-                                VPRINTK1("\t_group %dstream %d\n", s->stream,
+                                VPRINTK1(KERN_INFO "\t%c%d group\n",
+                                SCHR(s->stream),
                                         s->number);
                                 snd_pcm_trigger_done(s, substream);
                         } else
                                 break;
                 }
-                snd_printd("Stop\n");
+                VPRINTK1(KERN_INFO "stop\n");
 
                 /* _prepare and _hwparams reset the stream */
-                hpi_handle_error(hpi_stream_stop(ss, dpcm->h_stream));
+                hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
                         hpi_handle_error(
-                                hpi_outstream_reset(ss, dpcm->h_stream));
+                                hpi_outstream_reset(dpcm->h_stream));
 
                 if (card->support_grouping)
-                        hpi_handle_error(hpi_stream_group_reset(ss,
-                                                dpcm->h_stream));
+                        hpi_handle_error(hpi_stream_group_reset(dpcm->h_stream));
                 break;
 
         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-                snd_printd("Pause release\n");
-                hpi_handle_error(hpi_stream_start(ss, dpcm->h_stream));
+                VPRINTK1(KERN_INFO "pause release\n");
+                hpi_handle_error(hpi_stream_start(dpcm->h_stream));
                 snd_card_asihpi_pcm_timer_start(substream);
                 break;
         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-                snd_printd("Pause\n");
+                VPRINTK1(KERN_INFO "pause\n");
                 snd_card_asihpi_pcm_timer_stop(substream);
-                hpi_handle_error(hpi_stream_stop(ss, dpcm->h_stream));
+                hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
                 break;
         default:
-                snd_printd("\tINVALID\n");
+                snd_printd(KERN_ERR "\tINVALID\n");
                 return -EINVAL;
         }
 
@@ -683,19 +688,19 @@ static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
 pcm_buf_dma_ofs=get_buf_pos(s);
 for_each_linked_stream(s) {
         pcm_buf_dma_ofs=get_buf_pos(s);
-        min_buf_pos = modulo_min(min_buf_pos, pcm_buf_dma_ofs, pcm_size)
+        min_buf_pos = modulo_min(min_buf_pos, pcm_buf_dma_ofs, buffer_bytes)
         new_data = min(new_data, calc_new_data(pcm_buf_dma_ofs,irq_pos)
 }
 timer.expires = jiffies + predict_next_period_ready(min_buf_pos);
 for_each_linked_stream(s) {
         s->pcm_buf_dma_ofs = min_buf_pos;
-        if (new_data > pcm_count) {
+        if (new_data > period_bytes) {
                 if (mmap) {
-                        irq_pos = (irq_pos + pcm_count) % pcm_size;
+                        irq_pos = (irq_pos + period_bytes) % buffer_bytes;
                         if (playback) {
-                                write(pcm_count);
+                                write(period_bytes);
                         } else {
-                                read(pcm_count);
+                                read(period_bytes);
                         }
                 }
                 snd_pcm_period_elapsed(s);
@@ -723,25 +728,34 @@ static inline unsigned int modulo_min(unsigned int a, unsigned int b,
 static void snd_card_asihpi_timer_function(unsigned long data)
 {
         struct snd_card_asihpi_pcm *dpcm = (struct snd_card_asihpi_pcm *)data;
-        struct snd_card_asihpi *card = snd_pcm_substream_chip(dpcm->substream);
+        struct snd_pcm_substream *substream = dpcm->substream;
+        struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
         struct snd_pcm_runtime *runtime;
         struct snd_pcm_substream *s;
         unsigned int newdata = 0;
         unsigned int pcm_buf_dma_ofs, min_buf_pos = 0;
         unsigned int remdata, xfercount, next_jiffies;
         int first = 1;
+        int loops = 0;
         u16 state;
         u32 buffer_size, bytes_avail, samples_played, on_card_bytes;
 
+        VPRINTK1(KERN_INFO "%c%d snd_card_asihpi_timer_function\n",
+                                SCHR(substream->stream), substream->number);
+
         /* find minimum newdata and buffer pos in group */
-        snd_pcm_group_for_each_entry(s, dpcm->substream) {
+        snd_pcm_group_for_each_entry(s, substream) {
                 struct snd_card_asihpi_pcm *ds = s->runtime->private_data;
                 runtime = s->runtime;
 
                 if (snd_pcm_substream_chip(s) != card)
                         continue;
 
-                hpi_handle_error(hpi_stream_get_info_ex(ss,
+                /* don't link Cap and Play */
+                if (substream->stream != s->stream)
+                        continue;
+
+                hpi_handle_error(hpi_stream_get_info_ex(
                                         ds->h_stream, &state,
                                         &buffer_size, &bytes_avail,
                                         &samples_played, &on_card_bytes));
@@ -749,86 +763,96 @@ static void snd_card_asihpi_timer_function(unsigned long data)
                 /* number of bytes in on-card buffer */
                 runtime->delay = on_card_bytes;
 
-                if (state == HPI_STATE_DRAINED) {
-                        snd_printd(KERN_WARNING  "outstream %d drained\n",
-                                        s->number);
-                        //snd_pcm_stop(s, SNDRV_PCM_STATE_XRUN);
-                        //return;
-                }
-
-                if (s->stream == SNDRV_PCM_STREAM_PLAYBACK)
+                if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
                         pcm_buf_dma_ofs = ds->pcm_buf_host_rw_ofs - bytes_avail;
-                else
+                        if (state == HPI_STATE_STOPPED) {
+                                if ((bytes_avail == 0) &&
+                                    (on_card_bytes < ds->pcm_buf_host_rw_ofs)) {
+                                        hpi_handle_error(hpi_stream_start(ds->h_stream));
+                                        VPRINTK1(KERN_INFO "P%d start\n", s->number);
+                                }
+                        } else if (state == HPI_STATE_DRAINED) {
+                                VPRINTK1(KERN_WARNING "P%d drained\n",
+                                                s->number);
+                                /*snd_pcm_stop(s, SNDRV_PCM_STATE_XRUN);
+                                continue; */
+                        }
+                } else
                         pcm_buf_dma_ofs = bytes_avail + ds->pcm_buf_host_rw_ofs;
 
                 if (first) {
                         /* can't statically init min when wrap is involved */
                         min_buf_pos = pcm_buf_dma_ofs;
-                        newdata = (pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->pcm_size;
+                        newdata = (pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->buffer_bytes;
                         first = 0;
                 } else {
                         min_buf_pos =
                                 modulo_min(min_buf_pos, pcm_buf_dma_ofs, UINT_MAX+1L);
                         newdata = min(
-                                (pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->pcm_size,
+                                (pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->buffer_bytes,
                                 newdata);
                 }
 
-                VPRINTK1("PB timer hw_ptr x%04lX, appl_ptr x%04lX\n",
+                VPRINTK1(KERN_INFO "PB timer hw_ptr x%04lX, appl_ptr x%04lX\n",
                         (unsigned long)frames_to_bytes(runtime,
                                                 runtime->status->hw_ptr),
                         (unsigned long)frames_to_bytes(runtime,
                                                 runtime->control->appl_ptr));
 
-                VPRINTK1("%d S=%d, irq=%04X, pos=x%04X, left=x%04X,"
-                        " aux=x%04X space=x%04X\n", s->number,
+                VPRINTK1(KERN_INFO "%d %c%d S=%d, rw=%04X, dma=x%04X, left=x%04X,"
+                        " aux=x%04X space=x%04X\n",
+                        loops, SCHR(s->stream), s->number,
                         state,  ds->pcm_buf_host_rw_ofs, pcm_buf_dma_ofs, (int)bytes_avail,
                         (int)on_card_bytes, buffer_size-bytes_avail);
+                loops++;
         }
         pcm_buf_dma_ofs = min_buf_pos;
 
-        remdata = newdata % dpcm->pcm_count;
-        xfercount = newdata - remdata; /* a multiple of pcm_count */
+        remdata = newdata % dpcm->period_bytes;
+        xfercount = newdata - remdata; /* a multiple of period_bytes */
         /* come back when on_card_bytes has decreased enough to allow
            write to happen, or when data has been consumed to make another
            period
         */
-        if (xfercount && (on_card_bytes  > dpcm->pcm_count))
-                next_jiffies = ((on_card_bytes - dpcm->pcm_count) * HZ / dpcm->bytes_per_sec);
+        if (xfercount && (on_card_bytes  > dpcm->period_bytes))
+                next_jiffies = ((on_card_bytes - dpcm->period_bytes) * HZ / dpcm->bytes_per_sec);
         else
-                next_jiffies = ((dpcm->pcm_count - remdata) * HZ / dpcm->bytes_per_sec);
+                next_jiffies = ((dpcm->period_bytes - remdata) * HZ / dpcm->bytes_per_sec);
 
         next_jiffies = max(next_jiffies, 1U);
         dpcm->timer.expires = jiffies + next_jiffies;
-        VPRINTK1("jif %d buf pos x%04X newdata x%04X xfer x%04X\n",
+        VPRINTK1(KERN_INFO "jif %d buf pos x%04X newdata x%04X xfer x%04X\n",
                         next_jiffies, pcm_buf_dma_ofs, newdata, xfercount);
 
-
-        snd_pcm_group_for_each_entry(s, dpcm->substream) {
+        snd_pcm_group_for_each_entry(s, substream) {
                 struct snd_card_asihpi_pcm *ds = s->runtime->private_data;
 
+                /* don't link Cap and Play */
+                if (substream->stream != s->stream)
+                        continue;
+
                 ds->pcm_buf_dma_ofs = pcm_buf_dma_ofs;
 
-                if (xfercount && (on_card_bytes <= ds->pcm_count)) {
+                if (xfercount && (on_card_bytes <= ds->period_bytes)) {
                         if (card->support_mmap) {
                                 if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-                                        VPRINTK2("Write OS%d x%04x\n",
+                                        VPRINTK2(KERN_INFO "P%d write x%04x\n",
                                                         s->number,
-                                                        ds->pcm_count);
+                                                        ds->period_bytes);
                                         hpi_handle_error(
                                                 hpi_outstream_write_buf(
-                                                        ss, ds->h_stream,
+                                                        ds->h_stream,
                                                         &s->runtime->
                                                                 dma_area[0],
                                                         xfercount,
                                                         &ds->format));
                                 } else {
-                                        VPRINTK2("Read IS%d x%04x\n",
+                                        VPRINTK2(KERN_INFO "C%d read x%04x\n",
                                                 s->number,
                                                 xfercount);
                                         hpi_handle_error(
                                                 hpi_instream_read_buf(
-                                                        ss, ds->h_stream,
+                                                        ds->h_stream,
                                                         NULL, xfercount));
                                 }
                                 ds->pcm_buf_host_rw_ofs = ds->pcm_buf_host_rw_ofs + xfercount;
@@ -856,9 +880,9 @@ static int snd_card_asihpi_playback_prepare(struct snd_pcm_substream *
         struct snd_pcm_runtime *runtime = substream->runtime;
         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 
-        snd_printd(KERN_INFO "playback prepare %d\n", substream->number);
+        VPRINTK1(KERN_INFO "playback prepare %d\n", substream->number);
 
-        hpi_handle_error(hpi_outstream_reset(ss, dpcm->h_stream));
+        hpi_handle_error(hpi_outstream_reset(dpcm->h_stream));
         dpcm->pcm_buf_host_rw_ofs = 0;
         dpcm->pcm_buf_dma_ofs = 0;
         dpcm->pcm_buf_elapsed_dma_ofs = 0;
@@ -872,8 +896,8 @@ snd_card_asihpi_playback_pointer(struct snd_pcm_substream *substream)
         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
         snd_pcm_uframes_t ptr;
 
-        ptr = bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs  % dpcm->pcm_size);
-        //VPRINTK2("playback_pointer=x%04lx\n", (unsigned long)ptr);
+        ptr = bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs  % dpcm->buffer_bytes);
+        /* VPRINTK2(KERN_INFO "playback_pointer=x%04lx\n", (unsigned long)ptr); */
         return ptr;
 }
 
@@ -890,12 +914,12 @@ static void snd_card_asihpi_playback_format(struct snd_card_asihpi *asihpi,
         /* on cards without SRC, must query at valid rate,
         * maybe set by external sync
         */
-        err = hpi_mixer_get_control(ss, asihpi->h_mixer,
+        err = hpi_mixer_get_control(asihpi->h_mixer,
                                   HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
                                   HPI_CONTROL_SAMPLECLOCK, &h_control);
 
         if (!err)
-                err = hpi_sample_clock_get_sample_rate(ss, h_control,
+                err = hpi_sample_clock_get_sample_rate(h_control,
                                 &sample_rate);
 
         for (format = HPI_FORMAT_PCM8_UNSIGNED;
@@ -903,7 +927,7 @@ static void snd_card_asihpi_playback_format(struct snd_card_asihpi *asihpi,
                 err = hpi_format_create(&hpi_format,
                                         2, format, sample_rate, 128000, 0);
                 if (!err)
-                        err = hpi_outstream_query_format(ss, h_stream,
+                        err = hpi_outstream_query_format(h_stream,
                                                         &hpi_format);
                 if (!err && (hpi_to_alsa_formats[format] != -1))
                         pcmhw->formats |=
@@ -934,7 +958,7 @@ static int snd_card_asihpi_playback_open(struct snd_pcm_substream *substream)
                 return -ENOMEM;
 
         err =
-            hpi_outstream_open(ss, card->adapter_index,
+            hpi_outstream_open(card->adapter_index,
                               substream->number, &dpcm->h_stream);
         hpi_handle_error(err);
         if (err)
@@ -994,7 +1018,7 @@ static int snd_card_asihpi_playback_open(struct snd_pcm_substream *substream)
 
         snd_pcm_set_sync(substream);
 
-        snd_printd(KERN_INFO "playback open\n");
+        VPRINTK1(KERN_INFO "playback open\n");
 
         return 0;
 }
@@ -1004,8 +1028,8 @@ static int snd_card_asihpi_playback_close(struct snd_pcm_substream *substream)
         struct snd_pcm_runtime *runtime = substream->runtime;
         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 
-        hpi_handle_error(hpi_outstream_close(ss, dpcm->h_stream));
-        snd_printd(KERN_INFO "playback close\n");
+        hpi_handle_error(hpi_outstream_close(dpcm->h_stream));
+        VPRINTK1(KERN_INFO "playback close\n");
 
         return 0;
 }
@@ -1028,7 +1052,7 @@ static int snd_card_asihpi_playback_copy(struct snd_pcm_substream *substream,
         VPRINTK2(KERN_DEBUG "playback copy%d %u bytes\n",
                         substream->number, len);
 
-        hpi_handle_error(hpi_outstream_write_buf(ss, dpcm->h_stream,
+        hpi_handle_error(hpi_outstream_write_buf(dpcm->h_stream,
                                 runtime->dma_area, len, &dpcm->format));
 
         dpcm->pcm_buf_host_rw_ofs = dpcm->pcm_buf_host_rw_ofs + len;
@@ -1046,10 +1070,10 @@ static int snd_card_asihpi_playback_silence(struct snd_pcm_substream *
         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 
         len = frames_to_bytes(runtime, count);
-        snd_printd(KERN_INFO "playback silence  %u bytes\n", len);
+        VPRINTK1(KERN_INFO "playback silence  %u bytes\n", len);
 
         memset(runtime->dma_area, 0, len);
-        hpi_handle_error(hpi_outstream_write_buf(ss, dpcm->h_stream,
+        hpi_handle_error(hpi_outstream_write_buf(dpcm->h_stream,
                                 runtime->dma_area, len, &dpcm->format));
         return 0;
 }
@@ -1085,13 +1109,13 @@ snd_card_asihpi_capture_pointer(struct snd_pcm_substream *substream)
         struct snd_pcm_runtime *runtime = substream->runtime;
         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 
-        VPRINTK2("Capture pointer %d=%d\n",
+        VPRINTK2(KERN_INFO "capture pointer %d=%d\n",
                         substream->number, dpcm->pcm_buf_dma_ofs);
         /* NOTE Unlike playback can't use actual samples_played
                 for the capture position, because those samples aren't yet in
                 the local buffer available for reading.
         */
-        return bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs % dpcm->pcm_size);
+        return bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs % dpcm->buffer_bytes);
 }
 
 static int snd_card_asihpi_capture_ioctl(struct snd_pcm_substream *substream,
@@ -1105,12 +1129,12 @@ static int snd_card_asihpi_capture_prepare(struct snd_pcm_substream *substream)
         struct snd_pcm_runtime *runtime = substream->runtime;
         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 
-        hpi_handle_error(hpi_instream_reset(ss, dpcm->h_stream));
+        hpi_handle_error(hpi_instream_reset(dpcm->h_stream));
         dpcm->pcm_buf_host_rw_ofs = 0;
         dpcm->pcm_buf_dma_ofs = 0;
         dpcm->pcm_buf_elapsed_dma_ofs = 0;
 
-        snd_printd("Capture Prepare %d\n", substream->number);
+        VPRINTK1("Capture Prepare %d\n", substream->number);
         return 0;
 }
 
@@ -1128,12 +1152,12 @@ static void snd_card_asihpi_capture_format(struct snd_card_asihpi *asihpi,
 
         /* on cards without SRC, must query at valid rate,
                 maybe set by external sync */
-        err = hpi_mixer_get_control(ss, asihpi->h_mixer,
+        err = hpi_mixer_get_control(asihpi->h_mixer,
                                   HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
                                   HPI_CONTROL_SAMPLECLOCK, &h_control);
 
         if (!err)
-                err = hpi_sample_clock_get_sample_rate(ss, h_control,
+                err = hpi_sample_clock_get_sample_rate(h_control,
                         &sample_rate);
 
         for (format = HPI_FORMAT_PCM8_UNSIGNED;
@@ -1142,7 +1166,7 @@ static void snd_card_asihpi_capture_format(struct snd_card_asihpi *asihpi,
                 err = hpi_format_create(&hpi_format, 2, format,
                                 sample_rate, 128000, 0);
                 if (!err)
-                        err = hpi_instream_query_format(ss, h_stream,
+                        err = hpi_instream_query_format(h_stream,
                                             &hpi_format);
                 if (!err)
                         pcmhw->formats |=
@@ -1173,11 +1197,11 @@ static int snd_card_asihpi_capture_open(struct snd_pcm_substream *substream)
         if (dpcm == NULL)
                 return -ENOMEM;
 
-        snd_printd("hpi_instream_open adapter %d stream %d\n",
+        VPRINTK1("hpi_instream_open adapter %d stream %d\n",
                    card->adapter_index, substream->number);
 
         err = hpi_handle_error(
-            hpi_instream_open(ss, card->adapter_index,
+            hpi_instream_open(card->adapter_index,
                              substream->number, &dpcm->h_stream));
         if (err)
                 kfree(dpcm);
@@ -1229,7 +1253,7 @@ static int snd_card_asihpi_capture_close(struct snd_pcm_substream *substream)
 {
         struct snd_card_asihpi_pcm *dpcm = substream->runtime->private_data;
 
-        hpi_handle_error(hpi_instream_close(ss, dpcm->h_stream));
+        hpi_handle_error(hpi_instream_close(dpcm->h_stream));
         return 0;
 }
 
@@ -1243,8 +1267,8 @@ static int snd_card_asihpi_capture_copy(struct snd_pcm_substream *substream,
 
         len = frames_to_bytes(runtime, count);
 
-        VPRINTK2("Capture copy%d %d bytes\n", substream->number, len);
-        hpi_handle_error(hpi_instream_read_buf(ss, dpcm->h_stream,
+        VPRINTK2(KERN_INFO "capture copy%d %d bytes\n", substream->number, len);
+        hpi_handle_error(hpi_instream_read_buf(dpcm->h_stream,
                                 runtime->dma_area, len));
 
         dpcm->pcm_buf_host_rw_ofs = dpcm->pcm_buf_host_rw_ofs + len;
@@ -1327,8 +1351,7 @@ struct hpi_control {
         char name[44]; /* copied to snd_ctl_elem_id.name[44]; */
 };
 
-static const char * const asihpi_tuner_band_names[] =
-{
+static const char * const asihpi_tuner_band_names[] = {
         "invalid",
         "AM",
         "FM mono",
@@ -1346,8 +1369,7 @@ compile_time_assert(
                 (HPI_TUNER_BAND_LAST+1)),
         assert_tuner_band_names_size);
 
-static const char * const asihpi_src_names[] =
-{
+static const char * const asihpi_src_names[] = {
         "no source",
         "PCM",
         "Line",
@@ -1367,8 +1389,7 @@ compile_time_assert(
                 (HPI_SOURCENODE_LAST_INDEX-HPI_SOURCENODE_NONE+1)),
         assert_src_names_size);
 
-static const char * const asihpi_dst_names[] =
-{
+static const char * const asihpi_dst_names[] = {
         "no destination",
         "PCM",
         "Line",
@@ -1415,7 +1436,8 @@ static void asihpi_ctl_init(struct snd_kcontrol_new *snd_control,
         else if ((hpi_ctl->src_node_type + HPI_SOURCENODE_NONE != HPI_SOURCENODE_OSTREAM) &&
                 (!hpi_ctl->dst_node_type))
                 dir = "Capture "; /* On a source node that is not PCM playback */
-        else if ((hpi_ctl->src_node_type + HPI_SOURCENODE_NONE != HPI_SOURCENODE_OSTREAM) &&
+        else if (hpi_ctl->src_node_type &&
+                (hpi_ctl->src_node_type + HPI_SOURCENODE_NONE != HPI_SOURCENODE_OSTREAM) &&
                 (hpi_ctl->dst_node_type))
                 dir = "Monitor Playback "; /* Between an input and an output */
         else
@@ -1439,7 +1461,8 @@ static void asihpi_ctl_init(struct snd_kcontrol_new *snd_control,
                 hpi_ctl->src_node_index,
                 dir, name);
         }
-        // printk(KERN_INFO "adding %s %d to %d ",  hpi_ctl->name, hpi_ctl->src_node_type, hpi_ctl->dst_node_type);
+        /* printk(KERN_INFO "Adding %s %d to %d ",  hpi_ctl->name,
+                hpi_ctl->wSrcNodeType, hpi_ctl->wDstNodeType); */
 }
 
 /*------------------------------------------------------------
@@ -1456,7 +1479,7 @@ static int snd_asihpi_volume_info(struct snd_kcontrol *kcontrol,
         short max_gain_mB;
         short step_gain_mB;
 
-        err = hpi_volume_query_range(ss, h_control,
+        err = hpi_volume_query_range(h_control,
                         &min_gain_mB, &max_gain_mB, &step_gain_mB);
         if (err) {
                 max_gain_mB = 0;
@@ -1478,7 +1501,7 @@ static int snd_asihpi_volume_get(struct snd_kcontrol *kcontrol,
         u32 h_control = kcontrol->private_value;
         short an_gain_mB[HPI_MAX_CHANNELS];
 
-        hpi_handle_error(hpi_volume_get_gain(ss, h_control, an_gain_mB));
+        hpi_handle_error(hpi_volume_get_gain(h_control, an_gain_mB));
         ucontrol->value.integer.value[0] = an_gain_mB[0] / VOL_STEP_mB;
         ucontrol->value.integer.value[1] = an_gain_mB[1] / VOL_STEP_mB;
 
@@ -1500,7 +1523,7 @@ static int snd_asihpi_volume_put(struct snd_kcontrol *kcontrol,
            asihpi->mixer_volume[addr][1] != right;
          */
         change = 1;
-        hpi_handle_error(hpi_volume_set_gain(ss, h_control, an_gain_mB));
+        hpi_handle_error(hpi_volume_set_gain(h_control, an_gain_mB));
         return change;
 }
 
@@ -1536,7 +1559,7 @@ static int snd_asihpi_level_info(struct snd_kcontrol *kcontrol,
         short step_gain_mB;
 
         err =
-            hpi_level_query_range(ss, h_control, &min_gain_mB,
+            hpi_level_query_range(h_control, &min_gain_mB,
                                &max_gain_mB, &step_gain_mB);
         if (err) {
                 max_gain_mB = 2400;
@@ -1558,7 +1581,7 @@ static int snd_asihpi_level_get(struct snd_kcontrol *kcontrol,
         u32 h_control = kcontrol->private_value;
         short an_gain_mB[HPI_MAX_CHANNELS];
 
-        hpi_handle_error(hpi_level_get_gain(ss, h_control, an_gain_mB));
+        hpi_handle_error(hpi_level_get_gain(h_control, an_gain_mB));
         ucontrol->value.integer.value[0] =
             an_gain_mB[0] / HPI_UNITS_PER_dB;
         ucontrol->value.integer.value[1] =
@@ -1582,7 +1605,7 @@ static int snd_asihpi_level_put(struct snd_kcontrol *kcontrol,
            asihpi->mixer_level[addr][1] != right;
          */
         change = 1;
-        hpi_handle_error(hpi_level_set_gain(ss, h_control, an_gain_mB));
+        hpi_handle_error(hpi_level_set_gain(h_control, an_gain_mB));
         return change;
 }
 
@@ -1611,12 +1634,8 @@ static int __devinit snd_asihpi_level_add(struct snd_card_asihpi *asihpi,
  ------------------------------------------------------------*/
 
 /* AESEBU format */
-static const char * const asihpi_aesebu_format_names[] =
-{
-        "N/A",
-        "S/PDIF",
-        "AES/EBU",
-};
+static const char * const asihpi_aesebu_format_names[] = {
+        "N/A", "S/PDIF", "AES/EBU" };
 
 static int snd_asihpi_aesebu_format_info(struct snd_kcontrol *kcontrol,
                                   struct snd_ctl_elem_info *uinfo)
@@ -1637,12 +1656,12 @@ static int snd_asihpi_aesebu_format_info(struct snd_kcontrol *kcontrol,
 
 static int snd_asihpi_aesebu_format_get(struct snd_kcontrol *kcontrol,
                         struct snd_ctl_elem_value *ucontrol,
-                        u16 (*func)(const struct hpi_hsubsys *, u32, u16 *))
+                        u16 (*func)(u32, u16 *))
 {
         u32 h_control = kcontrol->private_value;
         u16 source, err;
 
-        err = func(ss, h_control, &source);
+        err = func(h_control, &source);
 
         /* default to N/A */
         ucontrol->value.enumerated.item[0] = 0;
@@ -1659,7 +1678,7 @@ static int snd_asihpi_aesebu_format_get(struct snd_kcontrol *kcontrol,
 
 static int snd_asihpi_aesebu_format_put(struct snd_kcontrol *kcontrol,
                         struct snd_ctl_elem_value *ucontrol,
-                         u16 (*func)(const struct hpi_hsubsys *, u32, u16))
+                         u16 (*func)(u32, u16))
 {
         u32 h_control = kcontrol->private_value;
 
@@ -1671,7 +1690,7 @@ static int snd_asihpi_aesebu_format_put(struct snd_kcontrol *kcontrol,
         if (ucontrol->value.enumerated.item[0] == 2)
                 source = HPI_AESEBU_FORMAT_AESEBU;
 
-        if (func(ss, h_control, source) != 0)
+        if (func(h_control, source) != 0)
                 return -EINVAL;
 
         return 1;
@@ -1680,13 +1699,13 @@ static int snd_asihpi_aesebu_format_put(struct snd_kcontrol *kcontrol,
 static int snd_asihpi_aesebu_rx_format_get(struct snd_kcontrol *kcontrol,
                                  struct snd_ctl_elem_value *ucontrol) {
         return snd_asihpi_aesebu_format_get(kcontrol, ucontrol,
-                                        HPI_AESEBU__receiver_get_format);
+                                        hpi_aesebu_receiver_get_format);
 }
 
 static int snd_asihpi_aesebu_rx_format_put(struct snd_kcontrol *kcontrol,
                                  struct snd_ctl_elem_value *ucontrol) {
         return snd_asihpi_aesebu_format_put(kcontrol, ucontrol,
-                                        HPI_AESEBU__receiver_set_format);
+                                        hpi_aesebu_receiver_set_format);
 }
 
 static int snd_asihpi_aesebu_rxstatus_info(struct snd_kcontrol *kcontrol,
@@ -1708,8 +1727,8 @@ static int snd_asihpi_aesebu_rxstatus_get(struct snd_kcontrol *kcontrol,
         u32 h_control = kcontrol->private_value;
         u16 status;
 
-        hpi_handle_error(HPI_AESEBU__receiver_get_error_status(
-                                ss, h_control, &status));
+        hpi_handle_error(hpi_aesebu_receiver_get_error_status(
+                                         h_control, &status));
         ucontrol->value.integer.value[0] = status;
         return 0;
 }
@@ -1742,13 +1761,13 @@ static int __devinit snd_asihpi_aesebu_rx_add(struct snd_card_asihpi *asihpi,
 static int snd_asihpi_aesebu_tx_format_get(struct snd_kcontrol *kcontrol,
                                  struct snd_ctl_elem_value *ucontrol) {
         return snd_asihpi_aesebu_format_get(kcontrol, ucontrol,
-                                        HPI_AESEBU__transmitter_get_format);
+                                        hpi_aesebu_transmitter_get_format);
 }
 
 static int snd_asihpi_aesebu_tx_format_put(struct snd_kcontrol *kcontrol,
                                  struct snd_ctl_elem_value *ucontrol) {
         return snd_asihpi_aesebu_format_put(kcontrol, ucontrol,
-                                        HPI_AESEBU__transmitter_set_format);
+                                        hpi_aesebu_transmitter_set_format);
 }
 
 
@@ -1782,7 +1801,7 @@ static int snd_asihpi_tuner_gain_info(struct snd_kcontrol *kcontrol,
         u16 gain_range[3];
 
         for (idx = 0; idx < 3; idx++) {
-                err = hpi_tuner_query_gain(ss, h_control,
+                err = hpi_tuner_query_gain(h_control,
                                           idx, &gain_range[idx]);
                 if (err != 0)
                         return err;
@@ -1805,7 +1824,7 @@ static int snd_asihpi_tuner_gain_get(struct snd_kcontrol *kcontrol,
         u32 h_control = kcontrol->private_value;
         short gain;
 
-        hpi_handle_error(hpi_tuner_get_gain(ss, h_control, &gain));
+        hpi_handle_error(hpi_tuner_get_gain(h_control, &gain));
         ucontrol->value.integer.value[0] = gain / HPI_UNITS_PER_dB;
 
         return 0;
@@ -1821,7 +1840,7 @@ static int snd_asihpi_tuner_gain_put(struct snd_kcontrol *kcontrol,
         short gain;
 
         gain = (ucontrol->value.integer.value[0]) * HPI_UNITS_PER_dB;
-        hpi_handle_error(hpi_tuner_set_gain(ss, h_control, gain));
+        hpi_handle_error(hpi_tuner_set_gain(h_control, gain));
 
         return 1;
 }
@@ -1835,7 +1854,7 @@ static int asihpi_tuner_band_query(struct snd_kcontrol *kcontrol,
         u32 i;
 
         for (i = 0; i < len; i++) {
-                err = hpi_tuner_query_band(ss,
+                err = hpi_tuner_query_band(
                                 h_control, i, &band_list[i]);
                 if (err != 0)
                         break;
@@ -1891,7 +1910,7 @@ static int snd_asihpi_tuner_band_get(struct snd_kcontrol *kcontrol,
         num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
                                 HPI_TUNER_BAND_LAST);
 
-        hpi_handle_error(hpi_tuner_get_band(ss, h_control, &band));
+        hpi_handle_error(hpi_tuner_get_band(h_control, &band));
 
         ucontrol->value.enumerated.item[0] = -1;
         for (idx = 0; idx < HPI_TUNER_BAND_LAST; idx++)
@@ -1918,7 +1937,7 @@ static int snd_asihpi_tuner_band_put(struct snd_kcontrol *kcontrol,
                         HPI_TUNER_BAND_LAST);
 
         band = tuner_bands[ucontrol->value.enumerated.item[0]];
-        hpi_handle_error(hpi_tuner_set_band(ss, h_control, band));
+        hpi_handle_error(hpi_tuner_set_band(h_control, band));
 
         return 1;
 }
@@ -1943,7 +1962,7 @@ static int snd_asihpi_tuner_freq_info(struct snd_kcontrol *kcontrol,
 
         for (band_iter = 0; band_iter < num_bands; band_iter++) {
                 for (idx = 0; idx < 3; idx++) {
-                        err = hpi_tuner_query_frequency(ss, h_control,
+                        err = hpi_tuner_query_frequency(h_control,
                                 idx, tuner_bands[band_iter],
                                 &temp_freq_range[idx]);
                         if (err != 0)
@@ -1976,7 +1995,7 @@ static int snd_asihpi_tuner_freq_get(struct snd_kcontrol *kcontrol,
         u32 h_control = kcontrol->private_value;
         u32 freq;
 
-        hpi_handle_error(hpi_tuner_get_frequency(ss, h_control, &freq));
+        hpi_handle_error(hpi_tuner_get_frequency(h_control, &freq));
         ucontrol->value.integer.value[0] = freq;
 
         return 0;
@@ -1989,7 +2008,7 @@ static int snd_asihpi_tuner_freq_put(struct snd_kcontrol *kcontrol,
         u32 freq;
 
         freq = ucontrol->value.integer.value[0];
-        hpi_handle_error(hpi_tuner_set_frequency(ss, h_control, freq));
+        hpi_handle_error(hpi_tuner_set_frequency(h_control, freq));
 
         return 1;
 }
@@ -2004,7 +2023,7 @@ static int __devinit snd_asihpi_tuner_add(struct snd_card_asihpi *asihpi,
         snd_control.private_value = hpi_ctl->h_control;
         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
 
-        if (!hpi_tuner_get_gain(ss, hpi_ctl->h_control, NULL)) {
+        if (!hpi_tuner_get_gain(hpi_ctl->h_control, NULL)) {
                 asihpi_ctl_init(&snd_control, hpi_ctl, "Gain");
                 snd_control.info = snd_asihpi_tuner_gain_info;
                 snd_control.get = snd_asihpi_tuner_gain_get;
@@ -2073,7 +2092,7 @@ static int snd_asihpi_meter_get(struct snd_kcontrol *kcontrol,
         short an_gain_mB[HPI_MAX_CHANNELS], i;
         u16 err;
 
-        err = hpi_meter_get_peak(ss, h_control, an_gain_mB);
+        err = hpi_meter_get_peak(h_control, an_gain_mB);
 
         for (i = 0; i < HPI_MAX_CHANNELS; i++) {
                 if (err) {
@@ -2118,7 +2137,7 @@ static int snd_card_asihpi_mux_count_sources(struct snd_kcontrol *snd_control)
         struct hpi_control hpi_ctl;
         int s, err;
         for (s = 0; s < 32; s++) {
-                err = hpi_multiplexer_query_source(ss, h_control, s,
+                err = hpi_multiplexer_query_source(h_control, s,
                                                   &hpi_ctl.
                                                   src_node_type,
                                                   &hpi_ctl.
@@ -2146,7 +2165,7 @@ static int snd_asihpi_mux_info(struct snd_kcontrol *kcontrol,
                     uinfo->value.enumerated.items - 1;
 
         err =
-            hpi_multiplexer_query_source(ss, h_control,
+            hpi_multiplexer_query_source(h_control,
                                         uinfo->value.enumerated.item,
                                         &src_node_type, &src_node_index);
 
@@ -2164,11 +2183,11 @@ static int snd_asihpi_mux_get(struct snd_kcontrol *kcontrol,
         u16 src_node_type, src_node_index;
         int s;
 
-        hpi_handle_error(hpi_multiplexer_get_source(ss, h_control,
+        hpi_handle_error(hpi_multiplexer_get_source(h_control,
                                 &source_type, &source_index));
         /* Should cache this search result! */
         for (s = 0; s < 256; s++) {
-                if (hpi_multiplexer_query_source(ss, h_control, s,
+                if (hpi_multiplexer_query_source(h_control, s,
                                             &src_node_type, &src_node_index))
                         break;
 
@@ -2195,12 +2214,12 @@ static int snd_asihpi_mux_put(struct snd_kcontrol *kcontrol,
 
         change = 1;
 
-        e = hpi_multiplexer_query_source(ss, h_control,
+        e = hpi_multiplexer_query_source(h_control,
                                     ucontrol->value.enumerated.item[0],
                                     &source_type, &source_index);
         if (!e)
                 hpi_handle_error(
-                        hpi_multiplexer_set_source(ss, h_control,
+                        hpi_multiplexer_set_source(h_control,
                                                 source_type, source_index));
         return change;
 }
@@ -2246,7 +2265,7 @@ static int snd_asihpi_cmode_info(struct snd_kcontrol *kcontrol,
         */
         for (i = 0; i < HPI_CHANNEL_MODE_LAST; i++)
                 if (!hpi_channel_mode_query_mode(
-                        ss,  h_control, i, &mode)) {
+                        h_control, i, &mode)) {
                         mode_map[valid_modes] = mode;
                         valid_modes++;
                         }
@@ -2270,7 +2289,7 @@ static int snd_asihpi_cmode_get(struct snd_kcontrol *kcontrol,
         u32 h_control = kcontrol->private_value;
         u16 mode;
 
-        if (hpi_channel_mode_get(ss, h_control, &mode))
+        if (hpi_channel_mode_get(h_control, &mode))
                 mode = 1;
 
         ucontrol->value.enumerated.item[0] = mode - 1;
@@ -2286,7 +2305,7 @@ static int snd_asihpi_cmode_put(struct snd_kcontrol *kcontrol,
 
         change = 1;
 
-        hpi_handle_error(hpi_channel_mode_set(ss, h_control,
+        hpi_handle_error(hpi_channel_mode_set(h_control,
                            ucontrol->value.enumerated.item[0] + 1));
         return change;
 }
@@ -2310,12 +2329,12 @@ static int __devinit snd_asihpi_cmode_add(struct snd_card_asihpi *asihpi,
 /*------------------------------------------------------------
    Sampleclock source  controls
  ------------------------------------------------------------*/
-static char *sampleclock_sources[MAX_CLOCKSOURCES] =
-{ "N/A", "Local PLL", "Digital Sync", "Word External", "Word Header",
-          "SMPTE", "Digital1", "Auto", "Network", "Invalid",
-          "Prev Module",
-          "Digital2", "Digital3", "Digital4", "Digital5",
-          "Digital6", "Digital7", "Digital8"};
+static char *sampleclock_sources[MAX_CLOCKSOURCES] = {
+        "N/A", "Local PLL", "Digital Sync", "Word External", "Word Header",
+        "SMPTE", "Digital1", "Auto", "Network", "Invalid",
+        "Prev Module",
+        "Digital2", "Digital3", "Digital4", "Digital5",
+        "Digital6", "Digital7", "Digital8"};
 
 static int snd_asihpi_clksrc_info(struct snd_kcontrol *kcontrol,
                                   struct snd_ctl_elem_info *uinfo)
@@ -2347,11 +2366,11 @@ static int snd_asihpi_clksrc_get(struct snd_kcontrol *kcontrol,
         int i;
 
         ucontrol->value.enumerated.item[0] = 0;
-        if (hpi_sample_clock_get_source(ss, h_control, &source))
+        if (hpi_sample_clock_get_source(h_control, &source))
                 source = 0;
 
         if (source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
-                if (hpi_sample_clock_get_source_index(ss, h_control, &srcindex))
+                if (hpi_sample_clock_get_source_index(h_control, &srcindex))
                         srcindex = 0;
 
         for (i = 0; i < clkcache->count; i++)
@@ -2378,11 +2397,11 @@ static int snd_asihpi_clksrc_put(struct snd_kcontrol *kcontrol,
         if (item >= clkcache->count)
                 item = clkcache->count-1;
 
-        hpi_handle_error(hpi_sample_clock_set_source(ss,
+        hpi_handle_error(hpi_sample_clock_set_source(
                                 h_control, clkcache->s[item].source));
 
         if (clkcache->s[item].source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
-                hpi_handle_error(hpi_sample_clock_set_source_index(ss,
+                hpi_handle_error(hpi_sample_clock_set_source_index(
                                 h_control, clkcache->s[item].index));
         return change;
 }
@@ -2410,7 +2429,7 @@ static int snd_asihpi_clklocal_get(struct snd_kcontrol *kcontrol,
         u32 rate;
         u16 e;
 
-        e = hpi_sample_clock_get_local_rate(ss, h_control, &rate);
+        e = hpi_sample_clock_get_local_rate(h_control, &rate);
         if (!e)
                 ucontrol->value.integer.value[0] = rate;
         else
@@ -2428,7 +2447,7 @@ static int snd_asihpi_clklocal_put(struct snd_kcontrol *kcontrol,
            asihpi->mixer_clkrate[addr][1] != right;
          */
         change = 1;
-        hpi_handle_error(hpi_sample_clock_set_local_rate(ss, h_control,
+        hpi_handle_error(hpi_sample_clock_set_local_rate(h_control,
                                       ucontrol->value.integer.value[0]));
         return change;
 }
@@ -2452,7 +2471,7 @@ static int snd_asihpi_clkrate_get(struct snd_kcontrol *kcontrol,
         u32 rate;
         u16 e;
 
-        e = hpi_sample_clock_get_sample_rate(ss, h_control, &rate);
+        e = hpi_sample_clock_get_sample_rate(h_control, &rate);
         if (!e)
                 ucontrol->value.integer.value[0] = rate;
         else
@@ -2477,7 +2496,7 @@ static int __devinit snd_asihpi_sampleclock_add(struct snd_card_asihpi *asihpi,
         clkcache->has_local = 0;
 
         for (i = 0; i <= HPI_SAMPLECLOCK_SOURCE_LAST; i++) {
-                if  (hpi_sample_clock_query_source(ss, hSC,
+                if  (hpi_sample_clock_query_source(hSC,
                                 i, &source))
                         break;
                 clkcache->s[i].source = source;
@@ -2491,7 +2510,7 @@ static int __devinit snd_asihpi_sampleclock_add(struct snd_card_asihpi *asihpi,
         if (has_aes_in)
                 /* already will have picked up index 0 above */
                 for (j = 1; j < 8; j++) {
-                        if (hpi_sample_clock_query_source_index(ss, hSC,
+                        if (hpi_sample_clock_query_source_index(hSC,
                                 j, HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT,
                                 &source))
                                 break;
@@ -2550,7 +2569,7 @@ static int __devinit snd_card_asihpi_mixer_new(struct snd_card_asihpi *asihpi)
         strcpy(card->mixername, "Asihpi Mixer");
 
         err =
-            hpi_mixer_open(ss, asihpi->adapter_index,
+            hpi_mixer_open(asihpi->adapter_index,
                           &asihpi->h_mixer);
         hpi_handle_error(err);
         if (err)
@@ -2561,7 +2580,7 @@ static int __devinit snd_card_asihpi_mixer_new(struct snd_card_asihpi *asihpi)
 
         for (idx = 0; idx < 2000; idx++) {
                 err = hpi_mixer_get_control_by_index(
-                                ss, asihpi->h_mixer,
+                                asihpi->h_mixer,
                                 idx,
                                 &hpi_ctl.src_node_type,
                                 &hpi_ctl.src_node_index,
@@ -2688,14 +2707,14 @@ snd_asihpi_proc_read(struct snd_info_entry *entry,
                 version & 0x7,
                 ((version >> 13) * 100) + ((version >> 7) & 0x3f));
 
-        err = hpi_mixer_get_control(ss, asihpi->h_mixer,
+        err = hpi_mixer_get_control(asihpi->h_mixer,
                                   HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
                                   HPI_CONTROL_SAMPLECLOCK, &h_control);
 
         if (!err) {
-                err = hpi_sample_clock_get_sample_rate(ss,
+                err = hpi_sample_clock_get_sample_rate(
                                         h_control, &rate);
-                err += hpi_sample_clock_get_source(ss, h_control, &source);
+                err += hpi_sample_clock_get_source(h_control, &source);
 
                 if (!err)
                         snd_iprintf(buffer, "sample_clock=%d_hz, source %s\n",
@@ -2825,7 +2844,7 @@ static int __devinit snd_asihpi_probe(struct pci_dev *pci_dev,
         asihpi->card = card;
         asihpi->pci = hpi_card->pci;
         asihpi->adapter_index = hpi_card->index;
-        hpi_handle_error(hpi_adapter_get_info(ss,
+        hpi_handle_error(hpi_adapter_get_info(
                                  asihpi->adapter_index,
                                  &asihpi->num_outstreams,
                                  &asihpi->num_instreams,
@@ -2847,33 +2866,33 @@ static int __devinit snd_asihpi_probe(struct pci_dev *pci_dev,
         if (pcm_substreams < asihpi->num_instreams)
                 pcm_substreams = asihpi->num_instreams;
 
-        err = hpi_adapter_get_property(ss, asihpi->adapter_index,
+        err = hpi_adapter_get_property(asihpi->adapter_index,
                 HPI_ADAPTER_PROPERTY_CAPS1,
                 NULL, &asihpi->support_grouping);
         if (err)
                 asihpi->support_grouping = 0;
 
-        err = hpi_adapter_get_property(ss, asihpi->adapter_index,
+        err = hpi_adapter_get_property(asihpi->adapter_index,
                 HPI_ADAPTER_PROPERTY_CAPS2,
                 &asihpi->support_mrx, NULL);
         if (err)
                 asihpi->support_mrx = 0;
 
-        err = hpi_adapter_get_property(ss, asihpi->adapter_index,
+        err = hpi_adapter_get_property(asihpi->adapter_index,
                 HPI_ADAPTER_PROPERTY_INTERVAL,
                 NULL, &asihpi->update_interval_frames);
         if (err)
                 asihpi->update_interval_frames = 512;
 
-        hpi_handle_error(hpi_instream_open(ss, asihpi->adapter_index,
+        hpi_handle_error(hpi_instream_open(asihpi->adapter_index,
                              0, &h_stream));
 
-        err = hpi_instream_host_buffer_free(ss, h_stream);
+        err = hpi_instream_host_buffer_free(h_stream);
         asihpi->support_mmap = (!err);
 
-        hpi_handle_error(hpi_instream_close(ss, h_stream));
+        hpi_handle_error(hpi_instream_close(h_stream));
 
-        err = hpi_adapter_get_property(ss, asihpi->adapter_index,
+        err = hpi_adapter_get_property(asihpi->adapter_index,
                 HPI_ADAPTER_PROPERTY_CURCHANNELS,
                 &asihpi->in_max_chans, &asihpi->out_max_chans);
         if (err) {
@@ -2899,13 +2918,13 @@ static int __devinit snd_asihpi_probe(struct pci_dev *pci_dev,
                 goto __nodev;
         }
 
-        err = hpi_mixer_get_control(ss, asihpi->h_mixer,
+        err = hpi_mixer_get_control(asihpi->h_mixer,
                                   HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
                                   HPI_CONTROL_SAMPLECLOCK, &h_control);
 
         if (!err)
                 err = hpi_sample_clock_set_local_rate(
-                        ss, h_control, adapter_fs);
+                        h_control, adapter_fs);
 
         snd_asihpi_proc_init(asihpi);
 
diff --git a/sound/pci/asihpi/hpi.h b/sound/pci/asihpi/hpi.h
index 4fb42c6b42e3..efed0c166bf3 100644
--- a/sound/pci/asihpi/hpi.h
+++ b/sound/pci/asihpi/hpi.h
@@ -24,17 +24,10 @@
 
  The HPI is a low-level hardware abstraction layer to all
  AudioScience digital audio adapters
-*/
-/*
- You must define one operating system that the HPI is to be compiled under
- HPI_OS_WIN32_USER   32bit Windows
- HPI_OS_DSP_C6000    DSP TI C6000  (automatically set)
- HPI_OS_WDM          Windows WDM kernel driver
- HPI_OS_LINUX        Linux userspace
- HPI_OS_LINUX_KERNEL Linux kernel (automatically set)
 
 (C) Copyright AudioScience Inc. 1998-2010
-******************************************************************************/
+*/
+
 #ifndef _HPI_H_
 #define _HPI_H_
 /* HPI Version
@@ -50,8 +43,8 @@ i.e 3.05.02 is a development version
 #define HPI_VER_RELEASE(v) ((int)(v & 0xFF))
 
 /* Use single digits for versions less that 10 to avoid octal. */
-#define HPI_VER HPI_VERSION_CONSTRUCTOR(4L, 5, 14)
-#define HPI_VER_STRING "4.05.14"
+#define HPI_VER HPI_VERSION_CONSTRUCTOR(4L, 5, 17)
+#define HPI_VER_STRING "4.05.17"
 
 /* Library version as documented in hpi-api-versions.txt */
 #define HPI_LIB_VER  HPI_VERSION_CONSTRUCTOR(9, 0, 0)
@@ -60,10 +53,8 @@ i.e 3.05.02 is a development version
 #define HPI_EXCLUDE_DEPRECATED
 
 /******************************************************************************/
-/******************************************************************************/
 /********       HPI API DEFINITIONS                                       *****/
 /******************************************************************************/
-/******************************************************************************/
 
 /*******************************************/
 /**  Audio format types
@@ -175,7 +166,6 @@ The range is +1.0 to -1.0, which corresponds to digital fullscale.
         HPI_FORMAT_UNDEFINED = 0xffff
 };
 
-/******************************************* in/out Stream states */
 /*******************************************/
 /** Stream States
 \ingroup stream
@@ -195,7 +185,7 @@ enum HPI_STREAM_STATES {
                 cards to be ready. */
         HPI_STATE_WAIT = 6
 };
-/******************************************* mixer source node types */
+/*******************************************/
 /** Source node types
 \ingroup mixer
 */
@@ -225,7 +215,7 @@ enum HPI_SOURCENODES {
                 /* AX6 max sourcenode types = 15 */
 };
 
-/******************************************* mixer dest node types */
+/*******************************************/
 /** Destination node types
 \ingroup mixer
 */
@@ -263,7 +253,7 @@ enum HPI_CONTROLS {
         HPI_CONTROL_MUTE = 4,   /*mute control - not used at present. */
         HPI_CONTROL_MULTIPLEXER = 5,    /**< multiplexer control. */
 
-        HPI_CONTROL_AESEBU_TRANSMITTER = 6,     /**< AES/EBU transmitter control. */
+        HPI_CONTROL_AESEBU_TRANSMITTER = 6, /**< AES/EBU transmitter control */
         HPI_CONTROL_AESEBUTX = 6,       /* HPI_CONTROL_AESEBU_TRANSMITTER */
 
         HPI_CONTROL_AESEBU_RECEIVER = 7, /**< AES/EBU receiver control. */
@@ -297,10 +287,7 @@ enum HPI_CONTROLS {
 /* WARNING types 256 or greater impact bit packing in all AX6 DSP code */
 };
 
-/* Shorthand names that match attribute names */
-
-/******************************************* ADAPTER ATTRIBUTES ****/
-
+/*******************************************/
 /** Adapter properties
 These are used in HPI_AdapterSetProperty() and HPI_AdapterGetProperty()
 \ingroup adapter
@@ -331,9 +318,9 @@ by the driver and is not passed on to the DSP at all.
 Indicates the state of the adapter's SSX2 setting. This setting is stored in
 non-volatile memory on the adapter. A typical call sequence would be to use
 HPI_ADAPTER_PROPERTY_SSX2_SETTING to set SSX2 on the adapter and then to reload
-the driver. The driver would query HPI_ADAPTER_PROPERTY_SSX2_SETTING during startup
-and if SSX2 is set, it would then call HPI_ADAPTER_PROPERTY_ENABLE_SSX2 to enable
-SSX2 stream mapping within the kernel level of the driver.
+the driver. The driver would query HPI_ADAPTER_PROPERTY_SSX2_SETTING during
+startup and if SSX2 is set, it would then call HPI_ADAPTER_PROPERTY_ENABLE_SSX2
+to enable SSX2 stream mapping within the kernel level of the driver.
 */
         HPI_ADAPTER_PROPERTY_SSX2_SETTING = 4,
 
@@ -455,7 +442,7 @@ enum HPI_ADAPTER_MODE_CMDS {
 };
 
 /** Adapter Modes
-        These are used by HPI_AdapterSetModeEx()
+ These are used by HPI_AdapterSetModeEx()
 
 \warning - more than 16 possible modes breaks
 a bitmask in the Windows WAVE DLL
@@ -630,10 +617,13 @@ enum HPI_MIXER_STORE_COMMAND {
         HPI_MIXER_STORE_SAVE_SINGLE = 6
 };
 
-/************************************* CONTROL ATTRIBUTE VALUES ****/
+/****************************/
+/* CONTROL ATTRIBUTE VALUES */
+/****************************/
+
 /** Used by mixer plugin enable functions
 
-E.g. HPI_ParametricEQ_SetState()
+E.g. HPI_ParametricEq_SetState()
 \ingroup mixer
 */
 enum HPI_SWITCH_STATES {
@@ -642,6 +632,7 @@ enum HPI_SWITCH_STATES {
 };
 
 /* Volume control special gain values */
+
 /** volumes units are 100ths of a dB
 \ingroup volume
 */
@@ -668,7 +659,7 @@ enum HPI_VOLUME_AUTOFADES {
 
 /** The physical encoding format of the AESEBU I/O.
 
-Used in HPI_AESEBU_Transmitter_SetFormat(), HPI_AESEBU_Receiver_SetFormat()
+Used in HPI_Aesebu_Transmitter_SetFormat(), HPI_Aesebu_Receiver_SetFormat()
 along with related Get and Query functions
 \ingroup aestx
 */
@@ -681,7 +672,7 @@ enum HPI_AESEBU_FORMATS {
 
 /** AES/EBU error status bits
 
-Returned by HPI_AESEBU_Receiver_GetErrorStatus()
+Returned by HPI_Aesebu_Receiver_GetErrorStatus()
 \ingroup aesrx
 */
 enum HPI_AESEBU_ERRORS {
@@ -832,7 +823,7 @@ enum HPI_SAMPLECLOCK_SOURCES {
         HPI_SAMPLECLOCK_SOURCE_LAST = 10
 };
 
-/** Equalizer filter types. Used by HPI_ParametricEQ_SetBand()
+/** Equalizer filter types. Used by HPI_ParametricEq_SetBand()
 \ingroup parmeq
 */
 enum HPI_FILTER_TYPE {
@@ -875,7 +866,7 @@ enum HPI_ERROR_CODES {
         HPI_ERROR_INVALID_OBJ = 101,
         /** Function does not exist. */
         HPI_ERROR_INVALID_FUNC = 102,
-        /** The specified object (adapter/Stream) does not exist. */
+        /** The specified object does not exist. */
         HPI_ERROR_INVALID_OBJ_INDEX = 103,
         /** Trying to access an object that has not been opened yet. */
         HPI_ERROR_OBJ_NOT_OPEN = 104,
@@ -883,8 +874,8 @@ enum HPI_ERROR_CODES {
         HPI_ERROR_OBJ_ALREADY_OPEN = 105,
         /** PCI, ISA resource not valid. */
         HPI_ERROR_INVALID_RESOURCE = 106,
-        /** GetInfo call from SubSysFindAdapters failed. */
-        HPI_ERROR_SUBSYSFINDADAPTERS_GETINFO = 107,
+        /* GetInfo call from SubSysFindAdapters failed. */
+        /*HPI_ERROR_SUBSYSFINDADAPTERS_GETINFO= 107, */
         /** Default response was never updated with actual error code. */
         HPI_ERROR_INVALID_RESPONSE = 108,
         /** wSize field of response was not updated,
@@ -892,40 +883,47 @@ enum HPI_ERROR_CODES {
         HPI_ERROR_PROCESSING_MESSAGE = 109,
         /** The network did not respond in a timely manner. */
         HPI_ERROR_NETWORK_TIMEOUT = 110,
-        /** An HPI handle is invalid (uninitialised?). */
+        /* An HPI handle is invalid (uninitialised?). */
         HPI_ERROR_INVALID_HANDLE = 111,
         /** A function or attribute has not been implemented yet. */
         HPI_ERROR_UNIMPLEMENTED = 112,
-        /** There are too many clients attempting to access a network resource. */
+        /** There are too many clients attempting
+            to access a network resource. */
         HPI_ERROR_NETWORK_TOO_MANY_CLIENTS = 113,
-        /** Response buffer passed to HPI_Message was smaller than returned response */
+        /** Response buffer passed to HPI_Message
+            was smaller than returned response.
+            wSpecificError field of hpi response contains the required size.
+        */
         HPI_ERROR_RESPONSE_BUFFER_TOO_SMALL = 114,
         /** The returned response did not match the sent message */
         HPI_ERROR_RESPONSE_MISMATCH = 115,
         /** A control setting that should have been cached was not. */
         HPI_ERROR_CONTROL_CACHING = 116,
+        /** A message buffer in the path to the adapter was smaller
+            than the message size.
+            wSpecificError field of hpi response contains the actual size.
+        */
+        HPI_ERROR_MESSAGE_BUFFER_TOO_SMALL = 117,
 
-        /** Too many adapters.*/
-        HPI_ERROR_TOO_MANY_ADAPTERS = 200,
+        /* Too many adapters. */
+        /* HPI_ERROR_TOO_MANY_ADAPTERS= 200, */
         /** Bad adpater. */
         HPI_ERROR_BAD_ADAPTER = 201,
         /** Adapter number out of range or not set properly. */
         HPI_ERROR_BAD_ADAPTER_NUMBER = 202,
         /** 2 adapters with the same adapter number. */
         HPI_DUPLICATE_ADAPTER_NUMBER = 203,
-        /** DSP code failed to bootload. */
+        /** DSP code failed to bootload. (unused?) */
         HPI_ERROR_DSP_BOOTLOAD = 204,
-        /** Adapter failed DSP code self test. */
+        /** Adapter failed DSP code self test. (unused?) */
         HPI_ERROR_DSP_SELFTEST = 205,
         /** Couldn't find or open the DSP code file. */
         HPI_ERROR_DSP_FILE_NOT_FOUND = 206,
         /** Internal DSP hardware error. */
         HPI_ERROR_DSP_HARDWARE = 207,
-        /** Could not allocate memory in DOS. */
-        HPI_ERROR_DOS_MEMORY_ALLOC = 208,
         /** Could not allocate memory */
         HPI_ERROR_MEMORY_ALLOC = 208,
-        /** Failed to correctly load/config PLD .*/
+        /** Failed to correctly load/config PLD. (unused?) */
         HPI_ERROR_PLD_LOAD = 209,
         /** Unexpected end of file, block length too big etc. */
         HPI_ERROR_DSP_FILE_FORMAT = 210,
@@ -934,8 +932,8 @@ enum HPI_ERROR_CODES {
         HPI_ERROR_DSP_FILE_ACCESS_DENIED = 211,
         /** First DSP code section header not found in DSP file. */
         HPI_ERROR_DSP_FILE_NO_HEADER = 212,
-        /** File read operation on DSP code file failed. */
-        HPI_ERROR_DSP_FILE_READ_ERROR = 213,
+        /* File read operation on DSP code file failed. */
+        /*HPI_ERROR_DSP_FILE_READ_ERROR= 213, */
         /** DSP code for adapter family not found. */
         HPI_ERROR_DSP_SECTION_NOT_FOUND = 214,
         /** Other OS specific error opening DSP file. */
@@ -945,8 +943,8 @@ enum HPI_ERROR_CODES {
         /** DSP code section header had size == 0. */
         HPI_ERROR_DSP_FILE_NULL_HEADER = 217,
 
-        /** Base number for flash errors. */
-        HPI_ERROR_FLASH = 220,
+        /* Base number for flash errors. */
+        /* HPI_ERROR_FLASH              = 220, */
 
         /** Flash has bad checksum */
         HPI_ERROR_BAD_CHECKSUM = 221,
@@ -960,8 +958,8 @@ enum HPI_ERROR_CODES {
         /** Reserved for OEMs. */
         HPI_ERROR_RESERVED_1 = 290,
 
-        /** Stream does not exist. */
-        HPI_ERROR_INVALID_STREAM = 300,
+        /* Stream does not exist. */
+        /*HPI_ERROR_INVALID_STREAM= 300, // use HPI_ERROR_INVALID_OBJ_INDEX */
         /** Invalid compression format. */
         HPI_ERROR_INVALID_FORMAT = 301,
         /** Invalid format samplerate */
@@ -972,21 +970,21 @@ enum HPI_ERROR_CODES {
         HPI_ERROR_INVALID_BITRATE = 304,
         /** Invalid datasize used for stream read/write. */
         HPI_ERROR_INVALID_DATASIZE = 305,
-        /** Stream buffer is full during stream write. */
-        HPI_ERROR_BUFFER_FULL = 306,
-        /** Stream buffer is empty during stream read. */
-        HPI_ERROR_BUFFER_EMPTY = 307,
-        /** Invalid datasize used for stream read/write. */
-        HPI_ERROR_INVALID_DATA_TRANSFER = 308,
+        /* Stream buffer is full during stream write. */
+        /*HPI_ERROR_BUFFER_FULL = 306, // USE HPI_ERROR_INVALID_DATASIZE */
+        /* Stream buffer is empty during stream read. */
+        /*HPI_ERROR_BUFFER_EMPTY = 307, // USE HPI_ERROR_INVALID_DATASIZE */
+        /** Null data pointer used for stream read/write. */
+        HPI_ERROR_INVALID_DATA_POINTER = 308,
         /** Packet ordering error for stream read/write. */
         HPI_ERROR_INVALID_PACKET_ORDER = 309,
 
         /** Object can't do requested operation in its current
-        state, eg set format, change rec mux state while recording.*/
+            state, eg set format, change rec mux state while recording.*/
         HPI_ERROR_INVALID_OPERATION = 310,
 
-        /** Where an SRG is shared amongst streams, an incompatible samplerate is one
-        that is different to any currently playing or recording stream. */
+        /** Where a SRG is shared amongst streams, an incompatible samplerate
+            is one that is different to any currently active stream. */
         HPI_ERROR_INCOMPATIBLE_SAMPLERATE = 311,
         /** Adapter mode is illegal.*/
         HPI_ERROR_BAD_ADAPTER_MODE = 312,
@@ -1068,7 +1066,7 @@ enum HPI_ERROR_CODES {
 
 /**\}*/
 
-/* ////////////////////////////////////////////////////////////////////// */
+/**************/
 /* STRUCTURES */
 #ifndef DISABLE_PRAGMA_PACK1
 #pragma pack(push, 1)
@@ -1116,724 +1114,573 @@ struct hpi_async_event {
 /* skip host side function declarations for
    DSP compile and documentation extraction */
 
-struct hpi_hsubsys {
-        int not_really_used;
-};
-
 #ifndef DISABLE_PRAGMA_PACK1
 #pragma pack(pop)
 #endif
 
-/*////////////////////////////////////////////////////////////////////////// */
+/*****************/
 /* HPI FUNCTIONS */
+/*****************/
 
-/*/////////////////////////// */
-/* DATA and FORMAT and STREAM */
-
+/* Stream */
 u16 hpi_stream_estimate_buffer_size(struct hpi_format *pF,
         u32 host_polling_rate_in_milli_seconds, u32 *recommended_buffer_size);
 
-/*/////////// */
-/* SUB SYSTEM */
-struct hpi_hsubsys *hpi_subsys_create(void);
+/*************/
+/* SubSystem */
+/*************/
 
-void hpi_subsys_free(const struct hpi_hsubsys *ph_subsys);
+u16 hpi_subsys_get_version_ex(u32 *pversion_ex);
 
-u16 hpi_subsys_get_version_ex(const struct hpi_hsubsys *ph_subsys,
-        u32 *pversion_ex);
+u16 hpi_subsys_get_num_adapters(int *pn_num_adapters);
 
-u16 hpi_subsys_get_num_adapters(const struct hpi_hsubsys *ph_subsys,
-        int *pn_num_adapters);
+u16 hpi_subsys_get_adapter(int iterator, u32 *padapter_index,
+        u16 *pw_adapter_type);
 
-u16 hpi_subsys_get_adapter(const struct hpi_hsubsys *ph_subsys, int iterator,
-        u32 *padapter_index, u16 *pw_adapter_type);
+/***********/
+/* Adapter */
+/***********/
 
-/*///////// */
-/* ADAPTER */
+u16 hpi_adapter_open(u16 adapter_index);
 
-u16 hpi_adapter_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index);
+u16 hpi_adapter_close(u16 adapter_index);
 
-u16 hpi_adapter_close(const struct hpi_hsubsys *ph_subsys, u16 adapter_index);
+u16 hpi_adapter_get_info(u16 adapter_index, u16 *pw_num_outstreams,
+        u16 *pw_num_instreams, u16 *pw_version, u32 *pserial_number,
+        u16 *pw_adapter_type);
 
-u16 hpi_adapter_get_info(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u16 *pw_num_outstreams, u16 *pw_num_instreams,
-        u16 *pw_version, u32 *pserial_number, u16 *pw_adapter_type);
+u16 hpi_adapter_get_module_by_index(u16 adapter_index, u16 module_index,
+        u16 *pw_num_outputs, u16 *pw_num_inputs, u16 *pw_version,
+        u32 *pserial_number, u16 *pw_module_type, u32 *ph_module);
 
-u16 hpi_adapter_get_module_by_index(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u16 module_index, u16 *pw_num_outputs,
-        u16 *pw_num_inputs, u16 *pw_version, u32 *pserial_number,
-        u16 *pw_module_type, u32 *ph_module);
+u16 hpi_adapter_set_mode(u16 adapter_index, u32 adapter_mode);
 
-u16 hpi_adapter_set_mode(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u32 adapter_mode);
+u16 hpi_adapter_set_mode_ex(u16 adapter_index, u32 adapter_mode,
+        u16 query_or_set);
 
-u16 hpi_adapter_set_mode_ex(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u32 adapter_mode, u16 query_or_set);
+u16 hpi_adapter_get_mode(u16 adapter_index, u32 *padapter_mode);
 
-u16 hpi_adapter_get_mode(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u32 *padapter_mode);
+u16 hpi_adapter_get_assert2(u16 adapter_index, u16 *p_assert_count,
+        char *psz_assert, u32 *p_param1, u32 *p_param2,
+        u32 *p_dsp_string_addr, u16 *p_processor_id);
 
-u16 hpi_adapter_get_assert2(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u16 *p_assert_count, char *psz_assert,
-        u32 *p_param1, u32 *p_param2, u32 *p_dsp_string_addr,
-        u16 *p_processor_id);
+u16 hpi_adapter_test_assert(u16 adapter_index, u16 assert_id);
 
-u16 hpi_adapter_test_assert(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u16 assert_id);
+u16 hpi_adapter_enable_capability(u16 adapter_index, u16 capability, u32 key);
 
-u16 hpi_adapter_enable_capability(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u16 capability, u32 key);
+u16 hpi_adapter_self_test(u16 adapter_index);
 
-u16 hpi_adapter_self_test(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index);
+u16 hpi_adapter_debug_read(u16 adapter_index, u32 dsp_address, char *p_bytes,
+        int *count_bytes);
 
-u16 hpi_adapter_debug_read(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u32 dsp_address, char *p_bytes, int *count_bytes);
+u16 hpi_adapter_set_property(u16 adapter_index, u16 property, u16 paramter1,
+        u16 paramter2);
 
-u16 hpi_adapter_set_property(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u16 property, u16 paramter1, u16 paramter2);
+u16 hpi_adapter_get_property(u16 adapter_index, u16 property,
+        u16 *pw_paramter1, u16 *pw_paramter2);
 
-u16 hpi_adapter_get_property(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u16 property, u16 *pw_paramter1,
-        u16 *pw_paramter2);
+u16 hpi_adapter_enumerate_property(u16 adapter_index, u16 index,
+        u16 what_to_enumerate, u16 property_index, u32 *psetting);
+/*************/
+/* OutStream */
+/*************/
+u16 hpi_outstream_open(u16 adapter_index, u16 outstream_index,
+        u32 *ph_outstream);
 
-u16 hpi_adapter_enumerate_property(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u16 index, u16 what_to_enumerate,
-        u16 property_index, u32 *psetting);
-/**************/
-/* OUT STREAM */
-/**************/
-u16 hpi_outstream_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index,
-        u16 outstream_index, u32 *ph_outstream);
+u16 hpi_outstream_close(u32 h_outstream);
 
-u16 hpi_outstream_close(const struct hpi_hsubsys *ph_subsys, u32 h_outstream);
+u16 hpi_outstream_get_info_ex(u32 h_outstream, u16 *pw_state,
+        u32 *pbuffer_size, u32 *pdata_to_play, u32 *psamples_played,
+        u32 *pauxiliary_data_to_play);
 
-u16 hpi_outstream_get_info_ex(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, u16 *pw_state, u32 *pbuffer_size, u32 *pdata_to_play,
-        u32 *psamples_played, u32 *pauxiliary_data_to_play);
+u16 hpi_outstream_write_buf(u32 h_outstream, const u8 *pb_write_buf,
+        u32 bytes_to_write, const struct hpi_format *p_format);
 
-u16 hpi_outstream_write_buf(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, const u8 *pb_write_buf, u32 bytes_to_write,
-        const struct hpi_format *p_format);
-
-u16 hpi_outstream_start(const struct hpi_hsubsys *ph_subsys, u32 h_outstream);
+u16 hpi_outstream_start(u32 h_outstream);
 
-u16 hpi_outstream_wait_start(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream);
+u16 hpi_outstream_wait_start(u32 h_outstream);
 
-u16 hpi_outstream_stop(const struct hpi_hsubsys *ph_subsys, u32 h_outstream);
+u16 hpi_outstream_stop(u32 h_outstream);
 
-u16 hpi_outstream_sinegen(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream);
+u16 hpi_outstream_sinegen(u32 h_outstream);
 
-u16 hpi_outstream_reset(const struct hpi_hsubsys *ph_subsys, u32 h_outstream);
+u16 hpi_outstream_reset(u32 h_outstream);
 
-u16 hpi_outstream_query_format(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, struct hpi_format *p_format);
+u16 hpi_outstream_query_format(u32 h_outstream, struct hpi_format *p_format);
 
-u16 hpi_outstream_set_format(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, struct hpi_format *p_format);
+u16 hpi_outstream_set_format(u32 h_outstream, struct hpi_format *p_format);
 
-u16 hpi_outstream_set_punch_in_out(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, u32 punch_in_sample, u32 punch_out_sample);
+u16 hpi_outstream_set_punch_in_out(u32 h_outstream, u32 punch_in_sample,
+        u32 punch_out_sample);
 
-u16 hpi_outstream_set_velocity(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, short velocity);
+u16 hpi_outstream_set_velocity(u32 h_outstream, short velocity);
 
-u16 hpi_outstream_ancillary_reset(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, u16 mode);
+u16 hpi_outstream_ancillary_reset(u32 h_outstream, u16 mode);
 
-u16 hpi_outstream_ancillary_get_info(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, u32 *pframes_available);
+u16 hpi_outstream_ancillary_get_info(u32 h_outstream, u32 *pframes_available);
 
-u16 hpi_outstream_ancillary_read(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, struct hpi_anc_frame *p_anc_frame_buffer,
+u16 hpi_outstream_ancillary_read(u32 h_outstream,
+        struct hpi_anc_frame *p_anc_frame_buffer,
         u32 anc_frame_buffer_size_in_bytes,
         u32 number_of_ancillary_frames_to_read);
 
-u16 hpi_outstream_set_time_scale(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, u32 time_scaleX10000);
+u16 hpi_outstream_set_time_scale(u32 h_outstream, u32 time_scaleX10000);
 
-u16 hpi_outstream_host_buffer_allocate(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, u32 size_in_bytes);
+u16 hpi_outstream_host_buffer_allocate(u32 h_outstream, u32 size_in_bytes);
 
-u16 hpi_outstream_host_buffer_free(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream);
+u16 hpi_outstream_host_buffer_free(u32 h_outstream);
 
-u16 hpi_outstream_group_add(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, u32 h_stream);
+u16 hpi_outstream_group_add(u32 h_outstream, u32 h_stream);
 
-u16 hpi_outstream_group_get_map(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, u32 *poutstream_map, u32 *pinstream_map);
+u16 hpi_outstream_group_get_map(u32 h_outstream, u32 *poutstream_map,
+        u32 *pinstream_map);
 
-u16 hpi_outstream_group_reset(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream);
+u16 hpi_outstream_group_reset(u32 h_outstream);
 
-/*////////// */
-/* IN_STREAM */
-u16 hpi_instream_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index,
-        u16 instream_index, u32 *ph_instream);
+/************/
+/* InStream */
+/************/
+u16 hpi_instream_open(u16 adapter_index, u16 instream_index,
+        u32 *ph_instream);
 
-u16 hpi_instream_close(const struct hpi_hsubsys *ph_subsys, u32 h_instream);
+u16 hpi_instream_close(u32 h_instream);
 
-u16 hpi_instream_query_format(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream, const struct hpi_format *p_format);
+u16 hpi_instream_query_format(u32 h_instream,
+        const struct hpi_format *p_format);
 
-u16 hpi_instream_set_format(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream, const struct hpi_format *p_format);
+u16 hpi_instream_set_format(u32 h_instream,
+        const struct hpi_format *p_format);
 
-u16 hpi_instream_read_buf(const struct hpi_hsubsys *ph_subsys, u32 h_instream,
-        u8 *pb_read_buf, u32 bytes_to_read);
+u16 hpi_instream_read_buf(u32 h_instream, u8 *pb_read_buf, u32 bytes_to_read);
 
-u16 hpi_instream_start(const struct hpi_hsubsys *ph_subsys, u32 h_instream);
+u16 hpi_instream_start(u32 h_instream);
 
-u16 hpi_instream_wait_start(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream);
+u16 hpi_instream_wait_start(u32 h_instream);
 
-u16 hpi_instream_stop(const struct hpi_hsubsys *ph_subsys, u32 h_instream);
+u16 hpi_instream_stop(u32 h_instream);
 
-u16 hpi_instream_reset(const struct hpi_hsubsys *ph_subsys, u32 h_instream);
+u16 hpi_instream_reset(u32 h_instream);
 
-u16 hpi_instream_get_info_ex(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream, u16 *pw_state, u32 *pbuffer_size, u32 *pdata_recorded,
-        u32 *psamples_recorded, u32 *pauxiliary_data_recorded);
+u16 hpi_instream_get_info_ex(u32 h_instream, u16 *pw_state, u32 *pbuffer_size,
+        u32 *pdata_recorded, u32 *psamples_recorded,
+        u32 *pauxiliary_data_recorded);
 
-u16 hpi_instream_ancillary_reset(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream, u16 bytes_per_frame, u16 mode, u16 alignment,
-        u16 idle_bit);
+u16 hpi_instream_ancillary_reset(u32 h_instream, u16 bytes_per_frame,
+        u16 mode, u16 alignment, u16 idle_bit);
 
-u16 hpi_instream_ancillary_get_info(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream, u32 *pframe_space);
+u16 hpi_instream_ancillary_get_info(u32 h_instream, u32 *pframe_space);
 
-u16 hpi_instream_ancillary_write(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream, const struct hpi_anc_frame *p_anc_frame_buffer,
+u16 hpi_instream_ancillary_write(u32 h_instream,
+        const struct hpi_anc_frame *p_anc_frame_buffer,
         u32 anc_frame_buffer_size_in_bytes,
         u32 number_of_ancillary_frames_to_write);
 
-u16 hpi_instream_host_buffer_allocate(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream, u32 size_in_bytes);
+u16 hpi_instream_host_buffer_allocate(u32 h_instream, u32 size_in_bytes);
 
-u16 hpi_instream_host_buffer_free(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream);
+u16 hpi_instream_host_buffer_free(u32 h_instream);
 
-u16 hpi_instream_group_add(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream, u32 h_stream);
+u16 hpi_instream_group_add(u32 h_instream, u32 h_stream);
 
-u16 hpi_instream_group_get_map(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream, u32 *poutstream_map, u32 *pinstream_map);
+u16 hpi_instream_group_get_map(u32 h_instream, u32 *poutstream_map,
+        u32 *pinstream_map);
 
-u16 hpi_instream_group_reset(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream);
+u16 hpi_instream_group_reset(u32 h_instream);
 
 /*********/
-/* MIXER */
+/* Mixer */
 /*********/
-u16 hpi_mixer_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index,
-        u32 *ph_mixer);
-
-u16 hpi_mixer_close(const struct hpi_hsubsys *ph_subsys, u32 h_mixer);
-
-u16 hpi_mixer_get_control(const struct hpi_hsubsys *ph_subsys, u32 h_mixer,
-        u16 src_node_type, u16 src_node_type_index, u16 dst_node_type,
-        u16 dst_node_type_index, u16 control_type, u32 *ph_control);
-
-u16 hpi_mixer_get_control_by_index(const struct hpi_hsubsys *ph_subsys,
-        u32 h_mixer, u16 control_index, u16 *pw_src_node_type,
-        u16 *pw_src_node_index, u16 *pw_dst_node_type, u16 *pw_dst_node_index,
-        u16 *pw_control_type, u32 *ph_control);
-
-u16 hpi_mixer_store(const struct hpi_hsubsys *ph_subsys, u32 h_mixer,
-        enum HPI_MIXER_STORE_COMMAND command, u16 index);
-/*************************/
-/* mixer CONTROLS                */
-/*************************/
-/*************************/
-/* volume control                */
-/*************************/
-u16 hpi_volume_set_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short an_gain0_01dB[HPI_MAX_CHANNELS]
+u16 hpi_mixer_open(u16 adapter_index, u32 *ph_mixer);
+
+u16 hpi_mixer_close(u32 h_mixer);
+
+u16 hpi_mixer_get_control(u32 h_mixer, u16 src_node_type,
+        u16 src_node_type_index, u16 dst_node_type, u16 dst_node_type_index,
+        u16 control_type, u32 *ph_control);
+
+u16 hpi_mixer_get_control_by_index(u32 h_mixer, u16 control_index,
+        u16 *pw_src_node_type, u16 *pw_src_node_index, u16 *pw_dst_node_type,
+        u16 *pw_dst_node_index, u16 *pw_control_type, u32 *ph_control);
+
+u16 hpi_mixer_store(u32 h_mixer, enum HPI_MIXER_STORE_COMMAND command,
+        u16 index);
+/************/
+/* Controls */
+/************/
+/******************/
+/* Volume control */
+/******************/
+u16 hpi_volume_set_gain(u32 h_control, short an_gain0_01dB[HPI_MAX_CHANNELS]
         );
 
-u16 hpi_volume_get_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control,
+u16 hpi_volume_get_gain(u32 h_control,
         short an_gain0_01dB_out[HPI_MAX_CHANNELS]
         );
 
 #define hpi_volume_get_range hpi_volume_query_range
-u16 hpi_volume_query_range(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short *min_gain_01dB, short *max_gain_01dB, short *step_gain_01dB);
+u16 hpi_volume_query_range(u32 h_control, short *min_gain_01dB,
+        short *max_gain_01dB, short *step_gain_01dB);
 
-u16 hpi_volume_query_channels(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_volume, u32 *p_channels);
+u16 hpi_volume_query_channels(const u32 h_volume, u32 *p_channels);
 
-u16 hpi_volume_auto_fade(const struct hpi_hsubsys *ph_subsys, u32 h_control,
+u16 hpi_volume_auto_fade(u32 h_control,
         short an_stop_gain0_01dB[HPI_MAX_CHANNELS], u32 duration_ms);
 
-u16 hpi_volume_auto_fade_profile(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, short an_stop_gain0_01dB[HPI_MAX_CHANNELS],
-        u32 duration_ms, u16 profile);
+u16 hpi_volume_auto_fade_profile(u32 h_control,
+        short an_stop_gain0_01dB[HPI_MAX_CHANNELS], u32 duration_ms,
+        u16 profile);
 
-/*************************/
-/* level control         */
-/*************************/
-u16 hpi_level_query_range(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short *min_gain_01dB, short *max_gain_01dB, short *step_gain_01dB);
+/*****************/
+/* Level control */
+/*****************/
+u16 hpi_level_query_range(u32 h_control, short *min_gain_01dB,
+        short *max_gain_01dB, short *step_gain_01dB);
 
-u16 hpi_level_set_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short an_gain0_01dB[HPI_MAX_CHANNELS]
+u16 hpi_level_set_gain(u32 h_control, short an_gain0_01dB[HPI_MAX_CHANNELS]
         );
 
-u16 hpi_level_get_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control,
+u16 hpi_level_get_gain(u32 h_control,
         short an_gain0_01dB_out[HPI_MAX_CHANNELS]
         );
 
-/*************************/
-/* meter control                 */
-/*************************/
-u16 hpi_meter_query_channels(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_meter, u32 *p_channels);
+/*****************/
+/* Meter control */
+/*****************/
+u16 hpi_meter_query_channels(const u32 h_meter, u32 *p_channels);
 
-u16 hpi_meter_get_peak(const struct hpi_hsubsys *ph_subsys, u32 h_control,
+u16 hpi_meter_get_peak(u32 h_control,
         short an_peak0_01dB_out[HPI_MAX_CHANNELS]
         );
 
-u16 hpi_meter_get_rms(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short an_peak0_01dB_out[HPI_MAX_CHANNELS]
+u16 hpi_meter_get_rms(u32 h_control, short an_peak0_01dB_out[HPI_MAX_CHANNELS]
         );
 
-u16 hpi_meter_set_peak_ballistics(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 attack, u16 decay);
+u16 hpi_meter_set_peak_ballistics(u32 h_control, u16 attack, u16 decay);
 
-u16 hpi_meter_set_rms_ballistics(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 attack, u16 decay);
+u16 hpi_meter_set_rms_ballistics(u32 h_control, u16 attack, u16 decay);
 
-u16 hpi_meter_get_peak_ballistics(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *attack, u16 *decay);
+u16 hpi_meter_get_peak_ballistics(u32 h_control, u16 *attack, u16 *decay);
 
-u16 hpi_meter_get_rms_ballistics(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *attack, u16 *decay);
+u16 hpi_meter_get_rms_ballistics(u32 h_control, u16 *attack, u16 *decay);
 
-/*************************/
-/* channel mode control  */
-/*************************/
-u16 hpi_channel_mode_query_mode(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_mode, const u32 index, u16 *pw_mode);
+/************************/
+/* ChannelMode control */
+/************************/
+u16 hpi_channel_mode_query_mode(const u32 h_mode, const u32 index,
+        u16 *pw_mode);
 
-u16 hpi_channel_mode_set(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u16 mode);
+u16 hpi_channel_mode_set(u32 h_control, u16 mode);
 
-u16 hpi_channel_mode_get(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u16 *mode);
+u16 hpi_channel_mode_get(u32 h_control, u16 *mode);
 
-/*************************/
-/* Tuner control                 */
-/*************************/
-u16 hpi_tuner_query_band(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_tuner, const u32 index, u16 *pw_band);
+/*****************/
+/* Tuner control */
+/*****************/
+u16 hpi_tuner_query_band(const u32 h_tuner, const u32 index, u16 *pw_band);
 
-u16 hpi_tuner_set_band(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u16 band);
+u16 hpi_tuner_set_band(u32 h_control, u16 band);
 
-u16 hpi_tuner_get_band(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u16 *pw_band);
+u16 hpi_tuner_get_band(u32 h_control, u16 *pw_band);
 
-u16 hpi_tuner_query_frequency(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_tuner, const u32 index, const u16 band, u32 *pfreq);
+u16 hpi_tuner_query_frequency(const u32 h_tuner, const u32 index,
+        const u16 band, u32 *pfreq);
 
-u16 hpi_tuner_set_frequency(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 freq_ink_hz);
+u16 hpi_tuner_set_frequency(u32 h_control, u32 freq_ink_hz);
 
-u16 hpi_tuner_get_frequency(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *pw_freq_ink_hz);
+u16 hpi_tuner_get_frequency(u32 h_control, u32 *pw_freq_ink_hz);
 
-u16 hpi_tuner_getRF_level(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short *pw_level);
+u16 hpi_tuner_get_rf_level(u32 h_control, short *pw_level);
 
-u16 hpi_tuner_get_rawRF_level(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, short *pw_level);
+u16 hpi_tuner_get_raw_rf_level(u32 h_control, short *pw_level);
 
-u16 hpi_tuner_query_gain(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_tuner, const u32 index, u16 *pw_gain);
+u16 hpi_tuner_query_gain(const u32 h_tuner, const u32 index, u16 *pw_gain);
 
-u16 hpi_tuner_set_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short gain);
+u16 hpi_tuner_set_gain(u32 h_control, short gain);
 
-u16 hpi_tuner_get_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short *pn_gain);
+u16 hpi_tuner_get_gain(u32 h_control, short *pn_gain);
 
-u16 hpi_tuner_get_status(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u16 *pw_status_mask, u16 *pw_status);
+u16 hpi_tuner_get_status(u32 h_control, u16 *pw_status_mask, u16 *pw_status);
 
-u16 hpi_tuner_set_mode(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u32 mode, u32 value);
+u16 hpi_tuner_set_mode(u32 h_control, u32 mode, u32 value);
 
-u16 hpi_tuner_get_mode(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u32 mode, u32 *pn_value);
+u16 hpi_tuner_get_mode(u32 h_control, u32 mode, u32 *pn_value);
 
-u16 hpi_tuner_getRDS(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        char *p_rds_data);
+u16 hpi_tuner_get_rds(u32 h_control, char *p_rds_data);
 
-u16 hpi_tuner_query_deemphasis(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_tuner, const u32 index, const u16 band, u32 *pdeemphasis);
+u16 hpi_tuner_query_deemphasis(const u32 h_tuner, const u32 index,
+        const u16 band, u32 *pdeemphasis);
 
-u16 hpi_tuner_set_deemphasis(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 deemphasis);
-u16 hpi_tuner_get_deemphasis(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *pdeemphasis);
+u16 hpi_tuner_set_deemphasis(u32 h_control, u32 deemphasis);
+u16 hpi_tuner_get_deemphasis(u32 h_control, u32 *pdeemphasis);
 
-u16 hpi_tuner_query_program(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_tuner, u32 *pbitmap_program);
+u16 hpi_tuner_query_program(const u32 h_tuner, u32 *pbitmap_program);
 
-u16 hpi_tuner_set_program(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u32 program);
+u16 hpi_tuner_set_program(u32 h_control, u32 program);
 
-u16 hpi_tuner_get_program(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u32 *pprogram);
+u16 hpi_tuner_get_program(u32 h_control, u32 *pprogram);
 
-u16 hpi_tuner_get_hd_radio_dsp_version(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, char *psz_dsp_version, const u32 string_size);
+u16 hpi_tuner_get_hd_radio_dsp_version(u32 h_control, char *psz_dsp_version,
+        const u32 string_size);
 
-u16 hpi_tuner_get_hd_radio_sdk_version(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, char *psz_sdk_version, const u32 string_size);
+u16 hpi_tuner_get_hd_radio_sdk_version(u32 h_control, char *psz_sdk_version,
+        const u32 string_size);
 
-u16 hpi_tuner_get_hd_radio_signal_quality(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *pquality);
+u16 hpi_tuner_get_hd_radio_signal_quality(u32 h_control, u32 *pquality);
 
-u16 hpi_tuner_get_hd_radio_signal_blend(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *pblend);
+u16 hpi_tuner_get_hd_radio_signal_blend(u32 h_control, u32 *pblend);
 
-u16 hpi_tuner_set_hd_radio_signal_blend(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, const u32 blend);
+u16 hpi_tuner_set_hd_radio_signal_blend(u32 h_control, const u32 blend);
 
-/****************************/
-/* PADs control             */
-/****************************/
+/***************/
+/* PAD control */
+/***************/
 
-u16 HPI_PAD__get_channel_name(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, char *psz_string, const u32 string_length);
+u16 hpi_pad_get_channel_name(u32 h_control, char *psz_string,
+        const u32 string_length);
 
-u16 HPI_PAD__get_artist(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        char *psz_string, const u32 string_length);
+u16 hpi_pad_get_artist(u32 h_control, char *psz_string,
+        const u32 string_length);
 
-u16 HPI_PAD__get_title(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        char *psz_string, const u32 string_length);
+u16 hpi_pad_get_title(u32 h_control, char *psz_string,
+        const u32 string_length);
 
-u16 HPI_PAD__get_comment(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        char *psz_string, const u32 string_length);
+u16 hpi_pad_get_comment(u32 h_control, char *psz_string,
+        const u32 string_length);
 
-u16 HPI_PAD__get_program_type(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *ppTY);
+u16 hpi_pad_get_program_type(u32 h_control, u32 *ppTY);
 
-u16 HPI_PAD__get_rdsPI(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u32 *ppI);
+u16 hpi_pad_get_rdsPI(u32 h_control, u32 *ppI);
 
-u16 HPI_PAD__get_program_type_string(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, const u32 data_type, const u32 pTY, char *psz_string,
-        const u32 string_length);
+u16 hpi_pad_get_program_type_string(u32 h_control, const u32 data_type,
+        const u32 pTY, char *psz_string, const u32 string_length);
 
 /****************************/
 /* AES/EBU Receiver control */
 /****************************/
-u16 HPI_AESEBU__receiver_query_format(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_aes_rx, const u32 index, u16 *pw_format);
+u16 hpi_aesebu_receiver_query_format(const u32 h_aes_rx, const u32 index,
+        u16 *pw_format);
 
-u16 HPI_AESEBU__receiver_set_format(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 source);
+u16 hpi_aesebu_receiver_set_format(u32 h_control, u16 source);
 
-u16 HPI_AESEBU__receiver_get_format(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *pw_source);
+u16 hpi_aesebu_receiver_get_format(u32 h_control, u16 *pw_source);
 
-u16 HPI_AESEBU__receiver_get_sample_rate(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *psample_rate);
+u16 hpi_aesebu_receiver_get_sample_rate(u32 h_control, u32 *psample_rate);
 
-u16 HPI_AESEBU__receiver_get_user_data(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 index, u16 *pw_data);
+u16 hpi_aesebu_receiver_get_user_data(u32 h_control, u16 index, u16 *pw_data);
 
-u16 HPI_AESEBU__receiver_get_channel_status(const struct hpi_hsubsys
-        *ph_subsys, u32 h_control, u16 index, u16 *pw_data);
+u16 hpi_aesebu_receiver_get_channel_status(u32 h_control, u16 index,
+        u16 *pw_data);
 
-u16 HPI_AESEBU__receiver_get_error_status(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *pw_error_data);
+u16 hpi_aesebu_receiver_get_error_status(u32 h_control, u16 *pw_error_data);
 
 /*******************************/
 /* AES/EBU Transmitter control */
 /*******************************/
-u16 HPI_AESEBU__transmitter_set_sample_rate(const struct hpi_hsubsys
-        *ph_subsys, u32 h_control, u32 sample_rate);
+u16 hpi_aesebu_transmitter_set_sample_rate(u32 h_control, u32 sample_rate);
 
-u16 HPI_AESEBU__transmitter_set_user_data(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 index, u16 data);
+u16 hpi_aesebu_transmitter_set_user_data(u32 h_control, u16 index, u16 data);
 
-u16 HPI_AESEBU__transmitter_set_channel_status(const struct hpi_hsubsys
-        *ph_subsys, u32 h_control, u16 index, u16 data);
+u16 hpi_aesebu_transmitter_set_channel_status(u32 h_control, u16 index,
+        u16 data);
 
-u16 HPI_AESEBU__transmitter_get_channel_status(const struct hpi_hsubsys
-        *ph_subsys, u32 h_control, u16 index, u16 *pw_data);
+u16 hpi_aesebu_transmitter_get_channel_status(u32 h_control, u16 index,
+        u16 *pw_data);
 
-u16 HPI_AESEBU__transmitter_query_format(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_aes_tx, const u32 index, u16 *pw_format);
+u16 hpi_aesebu_transmitter_query_format(const u32 h_aes_tx, const u32 index,
+        u16 *pw_format);
 
-u16 HPI_AESEBU__transmitter_set_format(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 output_format);
+u16 hpi_aesebu_transmitter_set_format(u32 h_control, u16 output_format);
 
-u16 HPI_AESEBU__transmitter_get_format(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *pw_output_format);
+u16 hpi_aesebu_transmitter_get_format(u32 h_control, u16 *pw_output_format);
 
 /***********************/
-/* multiplexer control */
+/* Multiplexer control */
 /***********************/
-u16 hpi_multiplexer_set_source(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 source_node_type, u16 source_node_index);
+u16 hpi_multiplexer_set_source(u32 h_control, u16 source_node_type,
+        u16 source_node_index);
 
-u16 hpi_multiplexer_get_source(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *source_node_type, u16 *source_node_index);
-
-u16 hpi_multiplexer_query_source(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 index, u16 *source_node_type,
+u16 hpi_multiplexer_get_source(u32 h_control, u16 *source_node_type,
         u16 *source_node_index);
 
+u16 hpi_multiplexer_query_source(u32 h_control, u16 index,
+        u16 *source_node_type, u16 *source_node_index);
+
 /***************/
-/* VOX control */
+/* Vox control */
 /***************/
-u16 hpi_vox_set_threshold(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short an_gain0_01dB);
+u16 hpi_vox_set_threshold(u32 h_control, short an_gain0_01dB);
 
-u16 hpi_vox_get_threshold(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short *an_gain0_01dB);
+u16 hpi_vox_get_threshold(u32 h_control, short *an_gain0_01dB);
 
 /*********************/
 /* Bitstream control */
 /*********************/
-u16 hpi_bitstream_set_clock_edge(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 edge_type);
+u16 hpi_bitstream_set_clock_edge(u32 h_control, u16 edge_type);
 
-u16 hpi_bitstream_set_data_polarity(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 polarity);
+u16 hpi_bitstream_set_data_polarity(u32 h_control, u16 polarity);
 
-u16 hpi_bitstream_get_activity(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *pw_clk_activity, u16 *pw_data_activity);
+u16 hpi_bitstream_get_activity(u32 h_control, u16 *pw_clk_activity,
+        u16 *pw_data_activity);
 
 /***********************/
 /* SampleClock control */
 /***********************/
 
-u16 hpi_sample_clock_query_source(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_clock, const u32 index, u16 *pw_source);
+u16 hpi_sample_clock_query_source(const u32 h_clock, const u32 index,
+        u16 *pw_source);
 
-u16 hpi_sample_clock_set_source(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 source);
+u16 hpi_sample_clock_set_source(u32 h_control, u16 source);
 
-u16 hpi_sample_clock_get_source(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *pw_source);
+u16 hpi_sample_clock_get_source(u32 h_control, u16 *pw_source);
 
-u16 hpi_sample_clock_query_source_index(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_clock, const u32 index, const u32 source,
-        u16 *pw_source_index);
+u16 hpi_sample_clock_query_source_index(const u32 h_clock, const u32 index,
+        const u32 source, u16 *pw_source_index);
 
-u16 hpi_sample_clock_set_source_index(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 source_index);
+u16 hpi_sample_clock_set_source_index(u32 h_control, u16 source_index);
 
-u16 hpi_sample_clock_get_source_index(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *pw_source_index);
+u16 hpi_sample_clock_get_source_index(u32 h_control, u16 *pw_source_index);
 
-u16 hpi_sample_clock_get_sample_rate(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *psample_rate);
+u16 hpi_sample_clock_get_sample_rate(u32 h_control, u32 *psample_rate);
 
-u16 hpi_sample_clock_query_local_rate(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_clock, const u32 index, u32 *psource);
+u16 hpi_sample_clock_query_local_rate(const u32 h_clock, const u32 index,
+        u32 *psource);
 
-u16 hpi_sample_clock_set_local_rate(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 sample_rate);
+u16 hpi_sample_clock_set_local_rate(u32 h_control, u32 sample_rate);
 
-u16 hpi_sample_clock_get_local_rate(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *psample_rate);
+u16 hpi_sample_clock_get_local_rate(u32 h_control, u32 *psample_rate);
 
-u16 hpi_sample_clock_set_auto(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 enable);
+u16 hpi_sample_clock_set_auto(u32 h_control, u32 enable);
 
-u16 hpi_sample_clock_get_auto(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *penable);
+u16 hpi_sample_clock_get_auto(u32 h_control, u32 *penable);
 
-u16 hpi_sample_clock_set_local_rate_lock(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 lock);
+u16 hpi_sample_clock_set_local_rate_lock(u32 h_control, u32 lock);
 
-u16 hpi_sample_clock_get_local_rate_lock(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *plock);
+u16 hpi_sample_clock_get_local_rate_lock(u32 h_control, u32 *plock);
 
 /***********************/
 /* Microphone control */
 /***********************/
-u16 hpi_microphone_set_phantom_power(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 on_off);
+u16 hpi_microphone_set_phantom_power(u32 h_control, u16 on_off);
 
-u16 hpi_microphone_get_phantom_power(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *pw_on_off);
+u16 hpi_microphone_get_phantom_power(u32 h_control, u16 *pw_on_off);
 
-/*******************************
-  Parametric Equalizer control
-*******************************/
-u16 hpi_parametricEQ__get_info(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *pw_number_of_bands, u16 *pw_enabled);
+/********************************/
+/* Parametric Equalizer control */
+/********************************/
+u16 hpi_parametric_eq_get_info(u32 h_control, u16 *pw_number_of_bands,
+        u16 *pw_enabled);
 
-u16 hpi_parametricEQ__set_state(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 on_off);
+u16 hpi_parametric_eq_set_state(u32 h_control, u16 on_off);
 
-u16 hpi_parametricEQ__set_band(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 index, u16 type, u32 frequency_hz, short q100,
-        short gain0_01dB);
+u16 hpi_parametric_eq_set_band(u32 h_control, u16 index, u16 type,
+        u32 frequency_hz, short q100, short gain0_01dB);
 
-u16 hpi_parametricEQ__get_band(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 index, u16 *pn_type, u32 *pfrequency_hz,
-        short *pnQ100, short *pn_gain0_01dB);
+u16 hpi_parametric_eq_get_band(u32 h_control, u16 index, u16 *pn_type,
+        u32 *pfrequency_hz, short *pnQ100, short *pn_gain0_01dB);
 
-u16 hpi_parametricEQ__get_coeffs(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 index, short coeffs[5]
+u16 hpi_parametric_eq_get_coeffs(u32 h_control, u16 index, short coeffs[5]
         );
 
-/*******************************
-  Compressor Expander control
-*******************************/
+/*******************************/
+/* Compressor Expander control */
+/*******************************/
 
-u16 hpi_compander_set_enable(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 on);
+u16 hpi_compander_set_enable(u32 h_control, u32 on);
 
-u16 hpi_compander_get_enable(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *pon);
+u16 hpi_compander_get_enable(u32 h_control, u32 *pon);
 
-u16 hpi_compander_set_makeup_gain(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, short makeup_gain0_01dB);
+u16 hpi_compander_set_makeup_gain(u32 h_control, short makeup_gain0_01dB);
 
-u16 hpi_compander_get_makeup_gain(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, short *pn_makeup_gain0_01dB);
+u16 hpi_compander_get_makeup_gain(u32 h_control, short *pn_makeup_gain0_01dB);
 
-u16 hpi_compander_set_attack_time_constant(const struct hpi_hsubsys
-        *ph_subsys, u32 h_control, u32 index, u32 attack);
+u16 hpi_compander_set_attack_time_constant(u32 h_control, u32 index,
+        u32 attack);
 
-u16 hpi_compander_get_attack_time_constant(const struct hpi_hsubsys
-        *ph_subsys, u32 h_control, u32 index, u32 *pw_attack);
+u16 hpi_compander_get_attack_time_constant(u32 h_control, u32 index,
+        u32 *pw_attack);
 
-u16 hpi_compander_set_decay_time_constant(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 index, u32 decay);
+u16 hpi_compander_set_decay_time_constant(u32 h_control, u32 index,
+        u32 decay);
 
-u16 hpi_compander_get_decay_time_constant(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 index, u32 *pw_decay);
+u16 hpi_compander_get_decay_time_constant(u32 h_control, u32 index,
+        u32 *pw_decay);
 
-u16 hpi_compander_set_threshold(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 index, short threshold0_01dB);
+u16 hpi_compander_set_threshold(u32 h_control, u32 index,
+        short threshold0_01dB);
 
-u16 hpi_compander_get_threshold(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 index, short *pn_threshold0_01dB);
+u16 hpi_compander_get_threshold(u32 h_control, u32 index,
+        short *pn_threshold0_01dB);
 
-u16 hpi_compander_set_ratio(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 index, u32 ratio100);
+u16 hpi_compander_set_ratio(u32 h_control, u32 index, u32 ratio100);
 
-u16 hpi_compander_get_ratio(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 index, u32 *pw_ratio100);
+u16 hpi_compander_get_ratio(u32 h_control, u32 index, u32 *pw_ratio100);
 
-/*******************************
-  Cobranet HMI control
-*******************************/
-u16 hpi_cobranet_hmi_write(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u32 hmi_address, u32 byte_count, u8 *pb_data);
+/********************/
+/* Cobranet control */
+/********************/
+u16 hpi_cobranet_hmi_write(u32 h_control, u32 hmi_address, u32 byte_count,
+        u8 *pb_data);
 
-u16 hpi_cobranet_hmi_read(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u32 hmi_address, u32 max_byte_count, u32 *pbyte_count, u8 *pb_data);
+u16 hpi_cobranet_hmi_read(u32 h_control, u32 hmi_address, u32 max_byte_count,
+        u32 *pbyte_count, u8 *pb_data);
 
-u16 hpi_cobranet_hmi_get_status(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *pstatus, u32 *preadable_size,
-        u32 *pwriteable_size);
+u16 hpi_cobranet_hmi_get_status(u32 h_control, u32 *pstatus,
+        u32 *preadable_size, u32 *pwriteable_size);
 
-/*Read the current IP address
-*/
-u16 hpi_cobranet_getI_paddress(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *pi_paddress);
+u16 hpi_cobranet_get_ip_address(u32 h_control, u32 *pdw_ip_address);
 
-/* Write the current IP address
-*/
-u16 hpi_cobranet_setI_paddress(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 i_paddress);
+u16 hpi_cobranet_set_ip_address(u32 h_control, u32 dw_ip_address);
 
-/* Read the static IP address
-*/
-u16 hpi_cobranet_get_staticI_paddress(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *pi_paddress);
+u16 hpi_cobranet_get_static_ip_address(u32 h_control, u32 *pdw_ip_address);
 
-/* Write the static IP address
-*/
-u16 hpi_cobranet_set_staticI_paddress(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 i_paddress);
+u16 hpi_cobranet_set_static_ip_address(u32 h_control, u32 dw_ip_address);
 
-/* Read the MAC address
-*/
-u16 hpi_cobranet_getMA_caddress(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *pmAC_MS_bs, u32 *pmAC_LS_bs);
+u16 hpi_cobranet_get_macaddress(u32 h_control, u32 *pmAC_MS_bs,
+        u32 *pmAC_LS_bs);
 
-/*******************************
-  Tone Detector control
-*******************************/
-u16 hpi_tone_detector_get_state(const struct hpi_hsubsys *ph_subsys, u32 hC,
-        u32 *state);
+/*************************/
+/* Tone Detector control */
+/*************************/
+u16 hpi_tone_detector_get_state(u32 hC, u32 *state);
 
-u16 hpi_tone_detector_set_enable(const struct hpi_hsubsys *ph_subsys, u32 hC,
-        u32 enable);
+u16 hpi_tone_detector_set_enable(u32 hC, u32 enable);
 
-u16 hpi_tone_detector_get_enable(const struct hpi_hsubsys *ph_subsys, u32 hC,
-        u32 *enable);
+u16 hpi_tone_detector_get_enable(u32 hC, u32 *enable);
 
-u16 hpi_tone_detector_set_event_enable(const struct hpi_hsubsys *ph_subsys,
-        u32 hC, u32 event_enable);
+u16 hpi_tone_detector_set_event_enable(u32 hC, u32 event_enable);
 
-u16 hpi_tone_detector_get_event_enable(const struct hpi_hsubsys *ph_subsys,
-        u32 hC, u32 *event_enable);
+u16 hpi_tone_detector_get_event_enable(u32 hC, u32 *event_enable);
 
-u16 hpi_tone_detector_set_threshold(const struct hpi_hsubsys *ph_subsys,
-        u32 hC, int threshold);
+u16 hpi_tone_detector_set_threshold(u32 hC, int threshold);
 
-u16 hpi_tone_detector_get_threshold(const struct hpi_hsubsys *ph_subsys,
-        u32 hC, int *threshold);
+u16 hpi_tone_detector_get_threshold(u32 hC, int *threshold);
 
-u16 hpi_tone_detector_get_frequency(const struct hpi_hsubsys *ph_subsys,
-        u32 hC, u32 index, u32 *frequency);
+u16 hpi_tone_detector_get_frequency(u32 hC, u32 index, u32 *frequency);
 
-/*******************************
-  Silence Detector control
-*******************************/
-u16 hpi_silence_detector_get_state(const struct hpi_hsubsys *ph_subsys,
-        u32 hC, u32 *state);
+/****************************/
+/* Silence Detector control */
+/****************************/
+u16 hpi_silence_detector_get_state(u32 hC, u32 *state);
 
-u16 hpi_silence_detector_set_enable(const struct hpi_hsubsys *ph_subsys,
-        u32 hC, u32 enable);
+u16 hpi_silence_detector_set_enable(u32 hC, u32 enable);
 
-u16 hpi_silence_detector_get_enable(const struct hpi_hsubsys *ph_subsys,
-        u32 hC, u32 *enable);
+u16 hpi_silence_detector_get_enable(u32 hC, u32 *enable);
 
-u16 hpi_silence_detector_set_event_enable(const struct hpi_hsubsys *ph_subsys,
-        u32 hC, u32 event_enable);
+u16 hpi_silence_detector_set_event_enable(u32 hC, u32 event_enable);
 
-u16 hpi_silence_detector_get_event_enable(const struct hpi_hsubsys *ph_subsys,
-        u32 hC, u32 *event_enable);
+u16 hpi_silence_detector_get_event_enable(u32 hC, u32 *event_enable);
 
-u16 hpi_silence_detector_set_delay(const struct hpi_hsubsys *ph_subsys,
-        u32 hC, u32 delay);
+u16 hpi_silence_detector_set_delay(u32 hC, u32 delay);
 
-u16 hpi_silence_detector_get_delay(const struct hpi_hsubsys *ph_subsys,
-        u32 hC, u32 *delay);
+u16 hpi_silence_detector_get_delay(u32 hC, u32 *delay);
 
-u16 hpi_silence_detector_set_threshold(const struct hpi_hsubsys *ph_subsys,
-        u32 hC, int threshold);
+u16 hpi_silence_detector_set_threshold(u32 hC, int threshold);
 
-u16 hpi_silence_detector_get_threshold(const struct hpi_hsubsys *ph_subsys,
-        u32 hC, int *threshold);
-/*//////////////////// */
-/* UTILITY functions */
+u16 hpi_silence_detector_get_threshold(u32 hC, int *threshold);
+/*********************/
+/* Utility functions */
+/*********************/
 
 u16 hpi_format_create(struct hpi_format *p_format, u16 channels, u16 format,
         u32 sample_rate, u32 bit_rate, u32 attributes);
 
-/* Until it's verified, this function is for Windows OSs only */
-
-#endif   /*_H_HPI_ */
-/*
-///////////////////////////////////////////////////////////////////////////////
-// See CVS for history.  Last complete set in rev 1.146
-////////////////////////////////////////////////////////////////////////////////
-*/
+#endif   /*_HPI_H_ */
diff --git a/sound/pci/asihpi/hpi_internal.h b/sound/pci/asihpi/hpi_internal.h
index 0d500841f1a5..a99aa9abe3da 100644
--- a/sound/pci/asihpi/hpi_internal.h
+++ b/sound/pci/asihpi/hpi_internal.h
@@ -104,6 +104,16 @@ enum HPI_BUSES {
         HPI_BUS_NET = 4
 };
 
+enum HPI_SUBSYS_OPTIONS {
+        /* 0, 256 are invalid, 1..255 reserved for global options */
+        HPI_SUBSYS_OPT_NET_ENABLE = 257,
+        HPI_SUBSYS_OPT_NET_BROADCAST = 258,
+        HPI_SUBSYS_OPT_NET_UNICAST = 259,
+        HPI_SUBSYS_OPT_NET_ADDR = 260,
+        HPI_SUBSYS_OPT_NET_MASK = 261,
+        HPI_SUBSYS_OPT_NET_ADAPTER_ADDRESS_ADD = 262
+};
+
 /******************************************* CONTROL ATTRIBUTES ****/
 /* (in order of control type ID */
 
@@ -365,7 +375,8 @@ enum HPI_OBJECT_TYPES {
 };
 
 #define HPI_OBJ_FUNCTION_SPACING 0x100
-#define HPI_FUNC_ID(obj, index) (HPI_OBJ_##obj * HPI_OBJ_FUNCTION_SPACING + index)
+#define HPI_FUNC_ID(obj, index) \
+        (HPI_OBJ_##obj * HPI_OBJ_FUNCTION_SPACING + index)
 
 #define HPI_EXTRACT_INDEX(fn) (fn & 0xff)
 
@@ -1171,7 +1182,7 @@ struct hpi_response {
         sizeof(struct hpi_response_header) + sizeof(struct hpi_async_res) \
 }
 
-/*********************** version 1 message/response *****************************/
+/*********************** version 1 message/response **************************/
 #define HPINET_ETHERNET_DATA_SIZE (1500)
 #define HPINET_IP_HDR_SIZE (20)
 #define HPINET_IP_DATA_SIZE (HPINET_ETHERNET_DATA_SIZE - HPINET_IP_HDR_SIZE)
@@ -1484,8 +1495,7 @@ struct hpi_control_cache_pad {
         u32 traffic_anouncement;
 };
 
-/*/////////////////////////////////////////////////////////////////////////// */
-/* declarations for 2^N sized FIFO buffer (internal to HPI<->DSP interaction) */
+/* 2^N sized FIFO buffer (internal to HPI<->DSP interaction) */
 struct hpi_fifo_buffer {
         u32 size;
         u32 dSP_index;
@@ -1510,25 +1520,22 @@ u32 hpi_indexes_to_handle(const char c_object, const u16 adapter_index,
 /*////////////////////////////////////////////////////////////////////////// */
 
 /* main HPI entry point */
-hpi_handler_func hpi_send_recv;
+void hpi_send_recv(struct hpi_message *phm, struct hpi_response *phr);
 
 /* UDP message */
 void hpi_send_recvUDP(struct hpi_message *phm, struct hpi_response *phr,
         const unsigned int timeout);
 
 /* used in PnP OS/driver */
-u16 hpi_subsys_create_adapter(const struct hpi_hsubsys *ph_subsys,
-        const struct hpi_resource *p_resource, u16 *pw_adapter_index);
+u16 hpi_subsys_create_adapter(const struct hpi_resource *p_resource,
+        u16 *pw_adapter_index);
 
-u16 hpi_subsys_delete_adapter(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index);
+u16 hpi_subsys_delete_adapter(u16 adapter_index);
 
-u16 hpi_outstream_host_buffer_get_info(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, u8 **pp_buffer,
+u16 hpi_outstream_host_buffer_get_info(u32 h_outstream, u8 **pp_buffer,
         struct hpi_hostbuffer_status **pp_status);
 
-u16 hpi_instream_host_buffer_get_info(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream, u8 **pp_buffer,
+u16 hpi_instream_host_buffer_get_info(u32 h_instream, u8 **pp_buffer,
         struct hpi_hostbuffer_status **pp_status);
 
 u16 hpi_adapter_restart(u16 adapter_index);
diff --git a/sound/pci/asihpi/hpifunc.c b/sound/pci/asihpi/hpifunc.c
index aafb76955f69..28e98dd9249b 100644
--- a/sound/pci/asihpi/hpifunc.c
+++ b/sound/pci/asihpi/hpifunc.c
@@ -30,16 +30,25 @@ u32 hpi_indexes_to_handle(const char c_object, const u16 adapter_index,
         return handle.w;
 }
 
-void hpi_handle_to_indexes(const u32 handle, u16 *pw_adapter_index,
-        u16 *pw_object_index)
+static u16 hpi_handle_indexes(const u32 h, u16 *p1, u16 *p2)
 {
         union handle_word uhandle;
-        uhandle.w = handle;
+        if (!h)
+                return HPI_ERROR_INVALID_HANDLE;
 
-        if (pw_adapter_index)
-                *pw_adapter_index = (u16)uhandle.h.adapter_index;
-        if (pw_object_index)
-                *pw_object_index = (u16)uhandle.h.obj_index;
+        uhandle.w = h;
+
+        *p1 = (u16)uhandle.h.adapter_index;
+        if (p2)
+                *p2 = (u16)uhandle.h.obj_index;
+
+        return 0;
+}
+
+void hpi_handle_to_indexes(const u32 handle, u16 *pw_adapter_index,
+        u16 *pw_object_index)
+{
+        hpi_handle_indexes(handle, pw_adapter_index, pw_object_index);
 }
 
 char hpi_handle_object(const u32 handle)
@@ -49,22 +58,6 @@ char hpi_handle_object(const u32 handle)
         return (char)uhandle.h.obj_type;
 }
 
-#define u32TOINDEX(h, i1) \
-do {\
-        if (h == 0) \
-                return HPI_ERROR_INVALID_OBJ; \
-        else \
-                hpi_handle_to_indexes(h, i1, NULL); \
-} while (0)
-
-#define u32TOINDEXES(h, i1, i2) \
-do {\
-        if (h == 0) \
-                return HPI_ERROR_INVALID_OBJ; \
-        else \
-                hpi_handle_to_indexes(h, i1, i2);\
-} while (0)
-
 void hpi_format_to_msg(struct hpi_msg_format *pMF,
         const struct hpi_format *pF)
 {
@@ -94,26 +87,13 @@ void hpi_stream_response_to_legacy(struct hpi_stream_res *pSR)
         pSR->u.legacy_stream_info.state = pSR->u.stream_info.state;
 }
 
-static struct hpi_hsubsys gh_subsys;
-
-struct hpi_hsubsys *hpi_subsys_create(void)
-{
-        return &gh_subsys;
-}
-
-void hpi_subsys_free(const struct hpi_hsubsys *ph_subsys)
+static inline void hpi_send_recvV1(struct hpi_message_header *m,
+        struct hpi_response_header *r)
 {
-        struct hpi_message hm;
-        struct hpi_response hr;
-
-        hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM,
-                HPI_SUBSYS_CLOSE);
-        hpi_send_recv(&hm, &hr);
-
+        hpi_send_recv((struct hpi_message *)m, (struct hpi_response *)r);
 }
 
-u16 hpi_subsys_get_version_ex(const struct hpi_hsubsys *ph_subsys,
-        u32 *pversion_ex)
+u16 hpi_subsys_get_version_ex(u32 *pversion_ex)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -125,8 +105,8 @@ u16 hpi_subsys_get_version_ex(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_subsys_create_adapter(const struct hpi_hsubsys *ph_subsys,
-        const struct hpi_resource *p_resource, u16 *pw_adapter_index)
+u16 hpi_subsys_create_adapter(const struct hpi_resource *p_resource,
+        u16 *pw_adapter_index)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -141,8 +121,7 @@ u16 hpi_subsys_create_adapter(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_subsys_delete_adapter(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index)
+u16 hpi_subsys_delete_adapter(u16 adapter_index)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -153,8 +132,7 @@ u16 hpi_subsys_delete_adapter(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_subsys_get_num_adapters(const struct hpi_hsubsys *ph_subsys,
-        int *pn_num_adapters)
+u16 hpi_subsys_get_num_adapters(int *pn_num_adapters)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -165,8 +143,8 @@ u16 hpi_subsys_get_num_adapters(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_subsys_get_adapter(const struct hpi_hsubsys *ph_subsys, int iterator,
-        u32 *padapter_index, u16 *pw_adapter_type)
+u16 hpi_subsys_get_adapter(int iterator, u32 *padapter_index,
+        u16 *pw_adapter_type)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -179,7 +157,7 @@ u16 hpi_subsys_get_adapter(const struct hpi_hsubsys *ph_subsys, int iterator,
         return hr.error;
 }
 
-u16 hpi_adapter_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index)
+u16 hpi_adapter_open(u16 adapter_index)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -193,7 +171,7 @@ u16 hpi_adapter_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index)
 
 }
 
-u16 hpi_adapter_close(const struct hpi_hsubsys *ph_subsys, u16 adapter_index)
+u16 hpi_adapter_close(u16 adapter_index)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -206,15 +184,14 @@ u16 hpi_adapter_close(const struct hpi_hsubsys *ph_subsys, u16 adapter_index)
         return hr.error;
 }
 
-u16 hpi_adapter_set_mode(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u32 adapter_mode)
+u16 hpi_adapter_set_mode(u16 adapter_index, u32 adapter_mode)
 {
-        return hpi_adapter_set_mode_ex(ph_subsys, adapter_index, adapter_mode,
+        return hpi_adapter_set_mode_ex(adapter_index, adapter_mode,
                 HPI_ADAPTER_MODE_SET);
 }
 
-u16 hpi_adapter_set_mode_ex(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u32 adapter_mode, u16 query_or_set)
+u16 hpi_adapter_set_mode_ex(u16 adapter_index, u32 adapter_mode,
+        u16 query_or_set)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -228,8 +205,7 @@ u16 hpi_adapter_set_mode_ex(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_adapter_get_mode(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u32 *padapter_mode)
+u16 hpi_adapter_get_mode(u16 adapter_index, u32 *padapter_mode)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -242,9 +218,9 @@ u16 hpi_adapter_get_mode(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_adapter_get_info(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u16 *pw_num_outstreams, u16 *pw_num_instreams,
-        u16 *pw_version, u32 *pserial_number, u16 *pw_adapter_type)
+u16 hpi_adapter_get_info(u16 adapter_index, u16 *pw_num_outstreams,
+        u16 *pw_num_instreams, u16 *pw_version, u32 *pserial_number,
+        u16 *pw_adapter_type)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -262,10 +238,9 @@ u16 hpi_adapter_get_info(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_adapter_get_module_by_index(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u16 module_index, u16 *pw_num_outputs,
-        u16 *pw_num_inputs, u16 *pw_version, u32 *pserial_number,
-        u16 *pw_module_type, u32 *ph_module)
+u16 hpi_adapter_get_module_by_index(u16 adapter_index, u16 module_index,
+        u16 *pw_num_outputs, u16 *pw_num_inputs, u16 *pw_version,
+        u32 *pserial_number, u16 *pw_module_type, u32 *ph_module)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -287,10 +262,9 @@ u16 hpi_adapter_get_module_by_index(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_adapter_get_assert2(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u16 *p_assert_count, char *psz_assert,
-        u32 *p_param1, u32 *p_param2, u32 *p_dsp_string_addr,
-        u16 *p_processor_id)
+u16 hpi_adapter_get_assert2(u16 adapter_index, u16 *p_assert_count,
+        char *psz_assert, u32 *p_param1, u32 *p_param2,
+        u32 *p_dsp_string_addr, u16 *p_processor_id)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -319,8 +293,7 @@ u16 hpi_adapter_get_assert2(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_adapter_test_assert(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u16 assert_id)
+u16 hpi_adapter_test_assert(u16 adapter_index, u16 assert_id)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -334,8 +307,7 @@ u16 hpi_adapter_test_assert(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_adapter_enable_capability(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u16 capability, u32 key)
+u16 hpi_adapter_enable_capability(u16 adapter_index, u16 capability, u32 key)
 {
 #if 1
         return HPI_ERROR_UNIMPLEMENTED;
@@ -354,8 +326,7 @@ u16 hpi_adapter_enable_capability(const struct hpi_hsubsys *ph_subsys,
 #endif
 }
 
-u16 hpi_adapter_self_test(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index)
+u16 hpi_adapter_self_test(u16 adapter_index)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -366,8 +337,8 @@ u16 hpi_adapter_self_test(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_adapter_debug_read(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u32 dsp_address, char *p_buffer, int *count_bytes)
+u16 hpi_adapter_debug_read(u16 adapter_index, u32 dsp_address, char *p_buffer,
+        int *count_bytes)
 {
         struct hpi_msg_adapter_debug_read hm;
         struct hpi_res_adapter_debug_read hr;
@@ -383,7 +354,7 @@ u16 hpi_adapter_debug_read(const struct hpi_hsubsys *ph_subsys,
 
         hm.count_bytes = *count_bytes;
 
-        hpi_send_recv((struct hpi_message *)&hm, (struct hpi_response *)&hr);
+        hpi_send_recvV1(&hm.h, &hr.h);
 
         if (!hr.h.error) {
                 int res_bytes = hr.h.size - sizeof(hr.h);
@@ -397,8 +368,8 @@ u16 hpi_adapter_debug_read(const struct hpi_hsubsys *ph_subsys,
         return hr.h.error;
 }
 
-u16 hpi_adapter_set_property(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u16 property, u16 parameter1, u16 parameter2)
+u16 hpi_adapter_set_property(u16 adapter_index, u16 property, u16 parameter1,
+        u16 parameter2)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -414,9 +385,8 @@ u16 hpi_adapter_set_property(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_adapter_get_property(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u16 property, u16 *pw_parameter1,
-        u16 *pw_parameter2)
+u16 hpi_adapter_get_property(u16 adapter_index, u16 property,
+        u16 *pw_parameter1, u16 *pw_parameter2)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -436,9 +406,8 @@ u16 hpi_adapter_get_property(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_adapter_enumerate_property(const struct hpi_hsubsys *ph_subsys,
-        u16 adapter_index, u16 index, u16 what_to_enumerate,
-        u16 property_index, u32 *psetting)
+u16 hpi_adapter_enumerate_property(u16 adapter_index, u16 index,
+        u16 what_to_enumerate, u16 property_index, u32 *psetting)
 {
         return 0;
 }
@@ -584,8 +553,8 @@ u16 hpi_stream_estimate_buffer_size(struct hpi_format *p_format,
         return 0;
 }
 
-u16 hpi_outstream_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index,
-        u16 outstream_index, u32 *ph_outstream)
+u16 hpi_outstream_open(u16 adapter_index, u16 outstream_index,
+        u32 *ph_outstream)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -605,38 +574,41 @@ u16 hpi_outstream_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index,
         return hr.error;
 }
 
-u16 hpi_outstream_close(const struct hpi_hsubsys *ph_subsys, u32 h_outstream)
+u16 hpi_outstream_close(u32 h_outstream)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_HOSTBUFFER_FREE);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
+
         hpi_send_recv(&hm, &hr);
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_GROUP_RESET);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index);
         hpi_send_recv(&hm, &hr);
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_CLOSE);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index);
         hpi_send_recv(&hm, &hr);
 
         return hr.error;
 }
 
-u16 hpi_outstream_get_info_ex(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, u16 *pw_state, u32 *pbuffer_size, u32 *pdata_to_play,
-        u32 *psamples_played, u32 *pauxiliary_data_to_play)
+u16 hpi_outstream_get_info_ex(u32 h_outstream, u16 *pw_state,
+        u32 *pbuffer_size, u32 *pdata_to_play, u32 *psamples_played,
+        u32 *pauxiliary_data_to_play)
 {
         struct hpi_message hm;
         struct hpi_response hr;
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_GET_INFO);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
 
         hpi_send_recv(&hm, &hr);
 
@@ -654,15 +626,15 @@ u16 hpi_outstream_get_info_ex(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_outstream_write_buf(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, const u8 *pb_data, u32 bytes_to_write,
-        const struct hpi_format *p_format)
+u16 hpi_outstream_write_buf(u32 h_outstream, const u8 *pb_data,
+        u32 bytes_to_write, const struct hpi_format *p_format)
 {
         struct hpi_message hm;
         struct hpi_response hr;
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_WRITE);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.d.u.data.pb_data = (u8 *)pb_data;
         hm.u.d.u.data.data_size = bytes_to_write;
 
@@ -673,82 +645,85 @@ u16 hpi_outstream_write_buf(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_outstream_start(const struct hpi_hsubsys *ph_subsys, u32 h_outstream)
+u16 hpi_outstream_start(u32 h_outstream)
 {
         struct hpi_message hm;
         struct hpi_response hr;
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_START);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
 
         hpi_send_recv(&hm, &hr);
 
         return hr.error;
 }
 
-u16 hpi_outstream_wait_start(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream)
+u16 hpi_outstream_wait_start(u32 h_outstream)
 {
         struct hpi_message hm;
         struct hpi_response hr;
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_WAIT_START);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
 
         hpi_send_recv(&hm, &hr);
 
         return hr.error;
 }
 
-u16 hpi_outstream_stop(const struct hpi_hsubsys *ph_subsys, u32 h_outstream)
+u16 hpi_outstream_stop(u32 h_outstream)
 {
         struct hpi_message hm;
         struct hpi_response hr;
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_STOP);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
 
         hpi_send_recv(&hm, &hr);
 
         return hr.error;
 }
 
-u16 hpi_outstream_sinegen(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream)
+u16 hpi_outstream_sinegen(u32 h_outstream)
 {
         struct hpi_message hm;
         struct hpi_response hr;
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_SINEGEN);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
 
         hpi_send_recv(&hm, &hr);
 
         return hr.error;
 }
 
-u16 hpi_outstream_reset(const struct hpi_hsubsys *ph_subsys, u32 h_outstream)
+u16 hpi_outstream_reset(u32 h_outstream)
 {
         struct hpi_message hm;
         struct hpi_response hr;
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_RESET);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
 
         hpi_send_recv(&hm, &hr);
 
         return hr.error;
 }
 
-u16 hpi_outstream_query_format(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, struct hpi_format *p_format)
+u16 hpi_outstream_query_format(u32 h_outstream, struct hpi_format *p_format)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_QUERY_FORMAT);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
 
         hpi_format_to_msg(&hm.u.d.u.data.format, p_format);
 
@@ -757,15 +732,15 @@ u16 hpi_outstream_query_format(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_outstream_set_format(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, struct hpi_format *p_format)
+u16 hpi_outstream_set_format(u32 h_outstream, struct hpi_format *p_format)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_SET_FORMAT);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
 
         hpi_format_to_msg(&hm.u.d.u.data.format, p_format);
 
@@ -774,15 +749,15 @@ u16 hpi_outstream_set_format(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_outstream_set_velocity(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, short velocity)
+u16 hpi_outstream_set_velocity(u32 h_outstream, short velocity)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_SET_VELOCITY);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.d.u.velocity = velocity;
 
         hpi_send_recv(&hm, &hr);
@@ -790,15 +765,16 @@ u16 hpi_outstream_set_velocity(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_outstream_set_punch_in_out(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, u32 punch_in_sample, u32 punch_out_sample)
+u16 hpi_outstream_set_punch_in_out(u32 h_outstream, u32 punch_in_sample,
+        u32 punch_out_sample)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_SET_PUNCHINOUT);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
 
         hm.u.d.u.pio.punch_in_sample = punch_in_sample;
         hm.u.d.u.pio.punch_out_sample = punch_out_sample;
@@ -808,29 +784,29 @@ u16 hpi_outstream_set_punch_in_out(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_outstream_ancillary_reset(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, u16 mode)
+u16 hpi_outstream_ancillary_reset(u32 h_outstream, u16 mode)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_ANC_RESET);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.d.u.data.format.channels = mode;
         hpi_send_recv(&hm, &hr);
         return hr.error;
 }
 
-u16 hpi_outstream_ancillary_get_info(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, u32 *pframes_available)
+u16 hpi_outstream_ancillary_get_info(u32 h_outstream, u32 *pframes_available)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_ANC_GET_INFO);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hpi_send_recv(&hm, &hr);
         if (hr.error == 0) {
                 if (pframes_available)
@@ -841,8 +817,8 @@ u16 hpi_outstream_ancillary_get_info(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_outstream_ancillary_read(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, struct hpi_anc_frame *p_anc_frame_buffer,
+u16 hpi_outstream_ancillary_read(u32 h_outstream,
+        struct hpi_anc_frame *p_anc_frame_buffer,
         u32 anc_frame_buffer_size_in_bytes,
         u32 number_of_ancillary_frames_to_read)
 {
@@ -851,7 +827,8 @@ u16 hpi_outstream_ancillary_read(const struct hpi_hsubsys *ph_subsys,
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_ANC_READ);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.d.u.data.pb_data = (u8 *)p_anc_frame_buffer;
         hm.u.d.u.data.data_size =
                 number_of_ancillary_frames_to_read *
@@ -859,19 +836,19 @@ u16 hpi_outstream_ancillary_read(const struct hpi_hsubsys *ph_subsys,
         if (hm.u.d.u.data.data_size <= anc_frame_buffer_size_in_bytes)
                 hpi_send_recv(&hm, &hr);
         else
-                hr.error = HPI_ERROR_INVALID_DATA_TRANSFER;
+                hr.error = HPI_ERROR_INVALID_DATASIZE;
         return hr.error;
 }
 
-u16 hpi_outstream_set_time_scale(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, u32 time_scale)
+u16 hpi_outstream_set_time_scale(u32 h_outstream, u32 time_scale)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_SET_TIMESCALE);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
 
         hm.u.d.u.time_scale = time_scale;
 
@@ -880,22 +857,21 @@ u16 hpi_outstream_set_time_scale(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_outstream_host_buffer_allocate(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, u32 size_in_bytes)
+u16 hpi_outstream_host_buffer_allocate(u32 h_outstream, u32 size_in_bytes)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_HOSTBUFFER_ALLOC);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.d.u.data.data_size = size_in_bytes;
         hpi_send_recv(&hm, &hr);
         return hr.error;
 }
 
-u16 hpi_outstream_host_buffer_get_info(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, u8 **pp_buffer,
+u16 hpi_outstream_host_buffer_get_info(u32 h_outstream, u8 **pp_buffer,
         struct hpi_hostbuffer_status **pp_status)
 {
         struct hpi_message hm;
@@ -903,7 +879,8 @@ u16 hpi_outstream_host_buffer_get_info(const struct hpi_hsubsys *ph_subsys,
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_HOSTBUFFER_GET_INFO);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hpi_send_recv(&hm, &hr);
 
         if (hr.error == 0) {
@@ -915,21 +892,20 @@ u16 hpi_outstream_host_buffer_get_info(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_outstream_host_buffer_free(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream)
+u16 hpi_outstream_host_buffer_free(u32 h_outstream)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_HOSTBUFFER_FREE);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hpi_send_recv(&hm, &hr);
         return hr.error;
 }
 
-u16 hpi_outstream_group_add(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, u32 h_stream)
+u16 hpi_outstream_group_add(u32 h_outstream, u32 h_stream)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -938,22 +914,22 @@ u16 hpi_outstream_group_add(const struct hpi_hsubsys *ph_subsys,
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_GROUP_ADD);
-        hr.error = 0;
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
+
+        if (hpi_handle_indexes(h_stream, &adapter,
+                        &hm.u.d.u.stream.stream_index))
+                return HPI_ERROR_INVALID_HANDLE;
+
         c_obj_type = hpi_handle_object(h_stream);
         switch (c_obj_type) {
         case HPI_OBJ_OSTREAM:
-                hm.u.d.u.stream.object_type = HPI_OBJ_OSTREAM;
-                u32TOINDEXES(h_stream, &adapter,
-                        &hm.u.d.u.stream.stream_index);
-                break;
         case HPI_OBJ_ISTREAM:
-                hm.u.d.u.stream.object_type = HPI_OBJ_ISTREAM;
-                u32TOINDEXES(h_stream, &adapter,
-                        &hm.u.d.u.stream.stream_index);
+                hm.u.d.u.stream.object_type = c_obj_type;
                 break;
         default:
-                return HPI_ERROR_INVALID_STREAM;
+                return HPI_ERROR_INVALID_OBJ;
         }
         if (adapter != hm.adapter_index)
                 return HPI_ERROR_NO_INTERADAPTER_GROUPS;
@@ -962,15 +938,16 @@ u16 hpi_outstream_group_add(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_outstream_group_get_map(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream, u32 *poutstream_map, u32 *pinstream_map)
+u16 hpi_outstream_group_get_map(u32 h_outstream, u32 *poutstream_map,
+        u32 *pinstream_map)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_GROUP_GETMAP);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hpi_send_recv(&hm, &hr);
 
         if (poutstream_map)
@@ -981,21 +958,20 @@ u16 hpi_outstream_group_get_map(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_outstream_group_reset(const struct hpi_hsubsys *ph_subsys,
-        u32 h_outstream)
+u16 hpi_outstream_group_reset(u32 h_outstream)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
                 HPI_OSTREAM_GROUP_RESET);
-        u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_outstream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hpi_send_recv(&hm, &hr);
         return hr.error;
 }
 
-u16 hpi_instream_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index,
-        u16 instream_index, u32 *ph_instream)
+u16 hpi_instream_open(u16 adapter_index, u16 instream_index, u32 *ph_instream)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -1017,38 +993,40 @@ u16 hpi_instream_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index,
         return hr.error;
 }
 
-u16 hpi_instream_close(const struct hpi_hsubsys *ph_subsys, u32 h_instream)
+u16 hpi_instream_close(u32 h_instream)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
                 HPI_ISTREAM_HOSTBUFFER_FREE);
-        u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_instream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hpi_send_recv(&hm, &hr);
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
                 HPI_ISTREAM_GROUP_RESET);
-        u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index);
+        hpi_handle_indexes(h_instream, &hm.adapter_index, &hm.obj_index);
         hpi_send_recv(&hm, &hr);
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
                 HPI_ISTREAM_CLOSE);
-        u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index);
+        hpi_handle_indexes(h_instream, &hm.adapter_index, &hm.obj_index);
         hpi_send_recv(&hm, &hr);
 
         return hr.error;
 }
 
-u16 hpi_instream_query_format(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream, const struct hpi_format *p_format)
+u16 hpi_instream_query_format(u32 h_instream,
+        const struct hpi_format *p_format)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
                 HPI_ISTREAM_QUERY_FORMAT);
-        u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_instream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hpi_format_to_msg(&hm.u.d.u.data.format, p_format);
 
         hpi_send_recv(&hm, &hr);
@@ -1056,15 +1034,15 @@ u16 hpi_instream_query_format(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_instream_set_format(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream, const struct hpi_format *p_format)
+u16 hpi_instream_set_format(u32 h_instream, const struct hpi_format *p_format)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
                 HPI_ISTREAM_SET_FORMAT);
-        u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_instream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hpi_format_to_msg(&hm.u.d.u.data.format, p_format);
 
         hpi_send_recv(&hm, &hr);
@@ -1072,15 +1050,15 @@ u16 hpi_instream_set_format(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_instream_read_buf(const struct hpi_hsubsys *ph_subsys, u32 h_instream,
-        u8 *pb_data, u32 bytes_to_read)
+u16 hpi_instream_read_buf(u32 h_instream, u8 *pb_data, u32 bytes_to_read)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
                 HPI_ISTREAM_READ);
-        u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_instream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.d.u.data.data_size = bytes_to_read;
         hm.u.d.u.data.pb_data = pb_data;
 
@@ -1089,72 +1067,76 @@ u16 hpi_instream_read_buf(const struct hpi_hsubsys *ph_subsys, u32 h_instream,
         return hr.error;
 }
 
-u16 hpi_instream_start(const struct hpi_hsubsys *ph_subsys, u32 h_instream)
+u16 hpi_instream_start(u32 h_instream)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
                 HPI_ISTREAM_START);
-        u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_instream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
 
         hpi_send_recv(&hm, &hr);
 
         return hr.error;
 }
 
-u16 hpi_instream_wait_start(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream)
+u16 hpi_instream_wait_start(u32 h_instream)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
                 HPI_ISTREAM_WAIT_START);
-        u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_instream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
 
         hpi_send_recv(&hm, &hr);
 
         return hr.error;
 }
 
-u16 hpi_instream_stop(const struct hpi_hsubsys *ph_subsys, u32 h_instream)
+u16 hpi_instream_stop(u32 h_instream)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
                 HPI_ISTREAM_STOP);
-        u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_instream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
 
         hpi_send_recv(&hm, &hr);
 
         return hr.error;
 }
 
-u16 hpi_instream_reset(const struct hpi_hsubsys *ph_subsys, u32 h_instream)
+u16 hpi_instream_reset(u32 h_instream)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
                 HPI_ISTREAM_RESET);
-        u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_instream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
 
         hpi_send_recv(&hm, &hr);
 
         return hr.error;
 }
 
-u16 hpi_instream_get_info_ex(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream, u16 *pw_state, u32 *pbuffer_size, u32 *pdata_recorded,
-        u32 *psamples_recorded, u32 *pauxiliary_data_recorded)
+u16 hpi_instream_get_info_ex(u32 h_instream, u16 *pw_state, u32 *pbuffer_size,
+        u32 *pdata_recorded, u32 *psamples_recorded,
+        u32 *pauxiliary_data_recorded)
 {
         struct hpi_message hm;
         struct hpi_response hr;
         hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
                 HPI_ISTREAM_GET_INFO);
-        u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_instream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
 
         hpi_send_recv(&hm, &hr);
 
@@ -1172,15 +1154,15 @@ u16 hpi_instream_get_info_ex(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_instream_ancillary_reset(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream, u16 bytes_per_frame, u16 mode, u16 alignment,
-        u16 idle_bit)
+u16 hpi_instream_ancillary_reset(u32 h_instream, u16 bytes_per_frame,
+        u16 mode, u16 alignment, u16 idle_bit)
 {
         struct hpi_message hm;
         struct hpi_response hr;
         hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
                 HPI_ISTREAM_ANC_RESET);
-        u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_instream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.d.u.data.format.attributes = bytes_per_frame;
         hm.u.d.u.data.format.format = (mode << 8) | (alignment & 0xff);
         hm.u.d.u.data.format.channels = idle_bit;
@@ -1188,14 +1170,14 @@ u16 hpi_instream_ancillary_reset(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_instream_ancillary_get_info(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream, u32 *pframe_space)
+u16 hpi_instream_ancillary_get_info(u32 h_instream, u32 *pframe_space)
 {
         struct hpi_message hm;
         struct hpi_response hr;
         hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
                 HPI_ISTREAM_ANC_GET_INFO);
-        u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_instream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hpi_send_recv(&hm, &hr);
         if (pframe_space)
                 *pframe_space =
@@ -1205,8 +1187,8 @@ u16 hpi_instream_ancillary_get_info(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_instream_ancillary_write(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream, const struct hpi_anc_frame *p_anc_frame_buffer,
+u16 hpi_instream_ancillary_write(u32 h_instream,
+        const struct hpi_anc_frame *p_anc_frame_buffer,
         u32 anc_frame_buffer_size_in_bytes,
         u32 number_of_ancillary_frames_to_write)
 {
@@ -1215,7 +1197,8 @@ u16 hpi_instream_ancillary_write(const struct hpi_hsubsys *ph_subsys,
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
                 HPI_ISTREAM_ANC_WRITE);
-        u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_instream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.d.u.data.pb_data = (u8 *)p_anc_frame_buffer;
         hm.u.d.u.data.data_size =
                 number_of_ancillary_frames_to_write *
@@ -1223,12 +1206,11 @@ u16 hpi_instream_ancillary_write(const struct hpi_hsubsys *ph_subsys,
         if (hm.u.d.u.data.data_size <= anc_frame_buffer_size_in_bytes)
                 hpi_send_recv(&hm, &hr);
         else
-                hr.error = HPI_ERROR_INVALID_DATA_TRANSFER;
+                hr.error = HPI_ERROR_INVALID_DATASIZE;
         return hr.error;
 }
 
-u16 hpi_instream_host_buffer_allocate(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream, u32 size_in_bytes)
+u16 hpi_instream_host_buffer_allocate(u32 h_instream, u32 size_in_bytes)
 {
 
         struct hpi_message hm;
@@ -1236,14 +1218,14 @@ u16 hpi_instream_host_buffer_allocate(const struct hpi_hsubsys *ph_subsys,
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
                 HPI_ISTREAM_HOSTBUFFER_ALLOC);
-        u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_instream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.d.u.data.data_size = size_in_bytes;
         hpi_send_recv(&hm, &hr);
         return hr.error;
 }
 
-u16 hpi_instream_host_buffer_get_info(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream, u8 **pp_buffer,
+u16 hpi_instream_host_buffer_get_info(u32 h_instream, u8 **pp_buffer,
         struct hpi_hostbuffer_status **pp_status)
 {
         struct hpi_message hm;
@@ -1251,7 +1233,8 @@ u16 hpi_instream_host_buffer_get_info(const struct hpi_hsubsys *ph_subsys,
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
                 HPI_ISTREAM_HOSTBUFFER_GET_INFO);
-        u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_instream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hpi_send_recv(&hm, &hr);
 
         if (hr.error == 0) {
@@ -1263,8 +1246,7 @@ u16 hpi_instream_host_buffer_get_info(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_instream_host_buffer_free(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream)
+u16 hpi_instream_host_buffer_free(u32 h_instream)
 {
 
         struct hpi_message hm;
@@ -1272,13 +1254,13 @@ u16 hpi_instream_host_buffer_free(const struct hpi_hsubsys *ph_subsys,
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
                 HPI_ISTREAM_HOSTBUFFER_FREE);
-        u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_instream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hpi_send_recv(&hm, &hr);
         return hr.error;
 }
 
-u16 hpi_instream_group_add(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream, u32 h_stream)
+u16 hpi_instream_group_add(u32 h_instream, u32 h_stream)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -1288,22 +1270,23 @@ u16 hpi_instream_group_add(const struct hpi_hsubsys *ph_subsys,
         hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
                 HPI_ISTREAM_GROUP_ADD);
         hr.error = 0;
-        u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index);
+
+        if (hpi_handle_indexes(h_instream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
+
+        if (hpi_handle_indexes(h_stream, &adapter,
+                        &hm.u.d.u.stream.stream_index))
+                return HPI_ERROR_INVALID_HANDLE;
+
         c_obj_type = hpi_handle_object(h_stream);
 
         switch (c_obj_type) {
         case HPI_OBJ_OSTREAM:
-                hm.u.d.u.stream.object_type = HPI_OBJ_OSTREAM;
-                u32TOINDEXES(h_stream, &adapter,
-                        &hm.u.d.u.stream.stream_index);
-                break;
         case HPI_OBJ_ISTREAM:
-                hm.u.d.u.stream.object_type = HPI_OBJ_ISTREAM;
-                u32TOINDEXES(h_stream, &adapter,
-                        &hm.u.d.u.stream.stream_index);
+                hm.u.d.u.stream.object_type = c_obj_type;
                 break;
         default:
-                return HPI_ERROR_INVALID_STREAM;
+                return HPI_ERROR_INVALID_OBJ;
         }
 
         if (adapter != hm.adapter_index)
@@ -1313,15 +1296,16 @@ u16 hpi_instream_group_add(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_instream_group_get_map(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream, u32 *poutstream_map, u32 *pinstream_map)
+u16 hpi_instream_group_get_map(u32 h_instream, u32 *poutstream_map,
+        u32 *pinstream_map)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
                 HPI_ISTREAM_HOSTBUFFER_FREE);
-        u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_instream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hpi_send_recv(&hm, &hr);
 
         if (poutstream_map)
@@ -1332,21 +1316,20 @@ u16 hpi_instream_group_get_map(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_instream_group_reset(const struct hpi_hsubsys *ph_subsys,
-        u32 h_instream)
+u16 hpi_instream_group_reset(u32 h_instream)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
                 HPI_ISTREAM_GROUP_RESET);
-        u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_instream, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hpi_send_recv(&hm, &hr);
         return hr.error;
 }
 
-u16 hpi_mixer_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index,
-        u32 *ph_mixer)
+u16 hpi_mixer_open(u16 adapter_index, u32 *ph_mixer)
 {
         struct hpi_message hm;
         struct hpi_response hr;
@@ -1364,25 +1347,29 @@ u16 hpi_mixer_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index,
         return hr.error;
 }
 
-u16 hpi_mixer_close(const struct hpi_hsubsys *ph_subsys, u32 h_mixer)
+u16 hpi_mixer_close(u32 h_mixer)
 {
         struct hpi_message hm;
         struct hpi_response hr;
+
         hpi_init_message_response(&hm, &hr, HPI_OBJ_MIXER, HPI_MIXER_CLOSE);
-        u32TOINDEX(h_mixer, &hm.adapter_index);
+        if (hpi_handle_indexes(h_mixer, &hm.adapter_index, NULL))
+                return HPI_ERROR_INVALID_HANDLE;
+
         hpi_send_recv(&hm, &hr);
         return hr.error;
 }
 
-u16 hpi_mixer_get_control(const struct hpi_hsubsys *ph_subsys, u32 h_mixer,
-        u16 src_node_type, u16 src_node_type_index, u16 dst_node_type,
-        u16 dst_node_type_index, u16 control_type, u32 *ph_control)
+u16 hpi_mixer_get_control(u32 h_mixer, u16 src_node_type,
+        u16 src_node_type_index, u16 dst_node_type, u16 dst_node_type_index,
+        u16 control_type, u32 *ph_control)
 {
         struct hpi_message hm;
         struct hpi_response hr;
         hpi_init_message_response(&hm, &hr, HPI_OBJ_MIXER,
                 HPI_MIXER_GET_CONTROL);
-        u32TOINDEX(h_mixer, &hm.adapter_index);
+        if (hpi_handle_indexes(h_mixer, &hm.adapter_index, NULL))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.m.node_type1 = src_node_type;
         hm.u.m.node_index1 = src_node_type_index;
         hm.u.m.node_type2 = dst_node_type;
@@ -1400,16 +1387,16 @@ u16 hpi_mixer_get_control(const struct hpi_hsubsys *ph_subsys, u32 h_mixer,
         return hr.error;
 }
 
-u16 hpi_mixer_get_control_by_index(const struct hpi_hsubsys *ph_subsys,
-        u32 h_mixer, u16 control_index, u16 *pw_src_node_type,
-        u16 *pw_src_node_index, u16 *pw_dst_node_type, u16 *pw_dst_node_index,
-        u16 *pw_control_type, u32 *ph_control)
+u16 hpi_mixer_get_control_by_index(u32 h_mixer, u16 control_index,
+        u16 *pw_src_node_type, u16 *pw_src_node_index, u16 *pw_dst_node_type,
+        u16 *pw_dst_node_index, u16 *pw_control_type, u32 *ph_control)
 {
         struct hpi_message hm;
         struct hpi_response hr;
         hpi_init_message_response(&hm, &hr, HPI_OBJ_MIXER,
                 HPI_MIXER_GET_CONTROL_BY_INDEX);
-        u32TOINDEX(h_mixer, &hm.adapter_index);
+        if (hpi_handle_indexes(h_mixer, &hm.adapter_index, NULL))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.m.control_index = control_index;
         hpi_send_recv(&hm, &hr);
 
@@ -1434,13 +1421,14 @@ u16 hpi_mixer_get_control_by_index(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_mixer_store(const struct hpi_hsubsys *ph_subsys, u32 h_mixer,
-        enum HPI_MIXER_STORE_COMMAND command, u16 index)
+u16 hpi_mixer_store(u32 h_mixer, enum HPI_MIXER_STORE_COMMAND command,
+        u16 index)
 {
         struct hpi_message hm;
         struct hpi_response hr;
         hpi_init_message_response(&hm, &hr, HPI_OBJ_MIXER, HPI_MIXER_STORE);
-        u32TOINDEX(h_mixer, &hm.adapter_index);
+        if (hpi_handle_indexes(h_mixer, &hm.adapter_index, NULL))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.mx.store.command = command;
         hm.u.mx.store.index = index;
         hpi_send_recv(&hm, &hr);
@@ -1448,16 +1436,16 @@ u16 hpi_mixer_store(const struct hpi_hsubsys *ph_subsys, u32 h_mixer,
 }
 
 static
-u16 hpi_control_param_set(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_control, const u16 attrib, const u32 param1,
-        const u32 param2)
+u16 hpi_control_param_set(const u32 h_control, const u16 attrib,
+        const u32 param1, const u32 param2)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_SET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.c.attribute = attrib;
         hm.u.c.param1 = param1;
         hm.u.c.param2 = param2;
@@ -1473,7 +1461,8 @@ static u16 hpi_control_log_set2(u32 h_control, u16 attrib, short sv0,
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_SET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.c.attribute = attrib;
         hm.u.c.an_log_value[0] = sv0;
         hm.u.c.an_log_value[1] = sv1;
@@ -1482,16 +1471,16 @@ static u16 hpi_control_log_set2(u32 h_control, u16 attrib, short sv0,
 }
 
 static
-u16 hpi_control_param_get(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_control, const u16 attrib, u32 param1, u32 param2,
-        u32 *pparam1, u32 *pparam2)
+u16 hpi_control_param_get(const u32 h_control, const u16 attrib, u32 param1,
+        u32 param2, u32 *pparam1, u32 *pparam2)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_GET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.c.attribute = attrib;
         hm.u.c.param1 = param1;
         hm.u.c.param2 = param2;
@@ -1504,19 +1493,20 @@ u16 hpi_control_param_get(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-#define hpi_control_param1_get(s, h, a, p1) \
-                hpi_control_param_get(s, h, a, 0, 0, p1, NULL)
-#define hpi_control_param2_get(s, h, a, p1, p2) \
-                hpi_control_param_get(s, h, a, 0, 0, p1, p2)
+#define hpi_control_param1_get(h, a, p1) \
+                hpi_control_param_get(h, a, 0, 0, p1, NULL)
+#define hpi_control_param2_get(h, a, p1, p2) \
+                hpi_control_param_get(h, a, 0, 0, p1, p2)
 
-static u16 hpi_control_log_get2(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 attrib, short *sv0, short *sv1)
+static u16 hpi_control_log_get2(u32 h_control, u16 attrib, short *sv0,
+        short *sv1)
 {
         struct hpi_message hm;
         struct hpi_response hr;
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_GET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.c.attribute = attrib;
 
         hpi_send_recv(&hm, &hr);
@@ -1527,8 +1517,7 @@ static u16 hpi_control_log_get2(const struct hpi_hsubsys *ph_subsys,
 }
 
 static
-u16 hpi_control_query(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_control, const u16 attrib, const u32 index,
+u16 hpi_control_query(const u32 h_control, const u16 attrib, const u32 index,
         const u32 param, u32 *psetting)
 {
         struct hpi_message hm;
@@ -1536,7 +1525,8 @@ u16 hpi_control_query(const struct hpi_hsubsys *ph_subsys,
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_GET_INFO);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
 
         hm.u.c.attribute = attrib;
         hm.u.c.param1 = index;
@@ -1565,7 +1555,9 @@ static u16 hpi_control_get_string(const u32 h_control, const u16 attribute,
 
                 hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                         HPI_CONTROL_GET_STATE);
-                u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+                if (hpi_handle_indexes(h_control, &hm.adapter_index,
+                                &hm.obj_index))
+                        return HPI_ERROR_INVALID_HANDLE;
                 hm.u.c.attribute = attribute;
                 hm.u.c.param1 = sub_string_index;
                 hm.u.c.param2 = 0;
@@ -1605,54 +1597,49 @@ static u16 hpi_control_get_string(const u32 h_control, const u16 attribute,
         return err;
 }
 
-u16 HPI_AESEBU__receiver_query_format(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_aes_rx, const u32 index, u16 *pw_format)
+u16 hpi_aesebu_receiver_query_format(const u32 h_aes_rx, const u32 index,
+        u16 *pw_format)
 {
         u32 qr;
         u16 err;
 
-        err = hpi_control_query(ph_subsys, h_aes_rx, HPI_AESEBURX_FORMAT,
-                index, 0, &qr);
+        err = hpi_control_query(h_aes_rx, HPI_AESEBURX_FORMAT, index, 0, &qr);
         *pw_format = (u16)qr;
         return err;
 }
 
-u16 HPI_AESEBU__receiver_set_format(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 format)
+u16 hpi_aesebu_receiver_set_format(u32 h_control, u16 format)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_AESEBURX_FORMAT, format, 0);
+        return hpi_control_param_set(h_control, HPI_AESEBURX_FORMAT, format,
+                0);
 }
 
-u16 HPI_AESEBU__receiver_get_format(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *pw_format)
+u16 hpi_aesebu_receiver_get_format(u32 h_control, u16 *pw_format)
 {
         u16 err;
         u32 param;
 
-        err = hpi_control_param1_get(ph_subsys, h_control,
-                HPI_AESEBURX_FORMAT, &param);
+        err = hpi_control_param1_get(h_control, HPI_AESEBURX_FORMAT, &param);
         if (!err && pw_format)
                 *pw_format = (u16)param;
 
         return err;
 }
 
-u16 HPI_AESEBU__receiver_get_sample_rate(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *psample_rate)
+u16 hpi_aesebu_receiver_get_sample_rate(u32 h_control, u32 *psample_rate)
 {
-        return hpi_control_param1_get(ph_subsys, h_control,
-                HPI_AESEBURX_SAMPLERATE, psample_rate);
+        return hpi_control_param1_get(h_control, HPI_AESEBURX_SAMPLERATE,
+                psample_rate);
 }
 
-u16 HPI_AESEBU__receiver_get_user_data(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 index, u16 *pw_data)
+u16 hpi_aesebu_receiver_get_user_data(u32 h_control, u16 index, u16 *pw_data)
 {
         struct hpi_message hm;
         struct hpi_response hr;
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_GET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.c.attribute = HPI_AESEBURX_USERDATA;
         hm.u.c.param1 = index;
 
@@ -1663,14 +1650,15 @@ u16 HPI_AESEBU__receiver_get_user_data(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 HPI_AESEBU__receiver_get_channel_status(const struct hpi_hsubsys
-        *ph_subsys, u32 h_control, u16 index, u16 *pw_data)
+u16 hpi_aesebu_receiver_get_channel_status(u32 h_control, u16 index,
+        u16 *pw_data)
 {
         struct hpi_message hm;
         struct hpi_response hr;
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_GET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.c.attribute = HPI_AESEBURX_CHANNELSTATUS;
         hm.u.c.param1 = index;
 
@@ -1681,101 +1669,93 @@ u16 HPI_AESEBU__receiver_get_channel_status(const struct hpi_hsubsys
         return hr.error;
 }
 
-u16 HPI_AESEBU__receiver_get_error_status(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *pw_error_data)
+u16 hpi_aesebu_receiver_get_error_status(u32 h_control, u16 *pw_error_data)
 {
         u32 error_data = 0;
         u16 error = 0;
 
-        error = hpi_control_param1_get(ph_subsys, h_control,
-                HPI_AESEBURX_ERRORSTATUS, &error_data);
+        error = hpi_control_param1_get(h_control, HPI_AESEBURX_ERRORSTATUS,
+                &error_data);
         if (pw_error_data)
                 *pw_error_data = (u16)error_data;
         return error;
 }
 
-u16 HPI_AESEBU__transmitter_set_sample_rate(const struct hpi_hsubsys
-        *ph_subsys, u32 h_control, u32 sample_rate)
+u16 hpi_aesebu_transmitter_set_sample_rate(u32 h_control, u32 sample_rate)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_AESEBUTX_SAMPLERATE, sample_rate, 0);
+        return hpi_control_param_set(h_control, HPI_AESEBUTX_SAMPLERATE,
+                sample_rate, 0);
 }
 
-u16 HPI_AESEBU__transmitter_set_user_data(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 index, u16 data)
+u16 hpi_aesebu_transmitter_set_user_data(u32 h_control, u16 index, u16 data)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_AESEBUTX_USERDATA, index, data);
+        return hpi_control_param_set(h_control, HPI_AESEBUTX_USERDATA, index,
+                data);
 }
 
-u16 HPI_AESEBU__transmitter_set_channel_status(const struct hpi_hsubsys
-        *ph_subsys, u32 h_control, u16 index, u16 data)
+u16 hpi_aesebu_transmitter_set_channel_status(u32 h_control, u16 index,
+        u16 data)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_AESEBUTX_CHANNELSTATUS, index, data);
+        return hpi_control_param_set(h_control, HPI_AESEBUTX_CHANNELSTATUS,
+                index, data);
 }
 
-u16 HPI_AESEBU__transmitter_get_channel_status(const struct hpi_hsubsys
-        *ph_subsys, u32 h_control, u16 index, u16 *pw_data)
+u16 hpi_aesebu_transmitter_get_channel_status(u32 h_control, u16 index,
+        u16 *pw_data)
 {
         return HPI_ERROR_INVALID_OPERATION;
 }
 
-u16 HPI_AESEBU__transmitter_query_format(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_aes_tx, const u32 index, u16 *pw_format)
+u16 hpi_aesebu_transmitter_query_format(const u32 h_aes_tx, const u32 index,
+        u16 *pw_format)
 {
         u32 qr;
         u16 err;
 
-        err = hpi_control_query(ph_subsys, h_aes_tx, HPI_AESEBUTX_FORMAT,
-                index, 0, &qr);
+        err = hpi_control_query(h_aes_tx, HPI_AESEBUTX_FORMAT, index, 0, &qr);
         *pw_format = (u16)qr;
         return err;
 }
 
-u16 HPI_AESEBU__transmitter_set_format(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 output_format)
+u16 hpi_aesebu_transmitter_set_format(u32 h_control, u16 output_format)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_AESEBUTX_FORMAT, output_format, 0);
+        return hpi_control_param_set(h_control, HPI_AESEBUTX_FORMAT,
+                output_format, 0);
 }
 
-u16 HPI_AESEBU__transmitter_get_format(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *pw_output_format)
+u16 hpi_aesebu_transmitter_get_format(u32 h_control, u16 *pw_output_format)
 {
         u16 err;
         u32 param;
 
-        err = hpi_control_param1_get(ph_subsys, h_control,
-                HPI_AESEBUTX_FORMAT, &param);
+        err = hpi_control_param1_get(h_control, HPI_AESEBUTX_FORMAT, &param);
         if (!err && pw_output_format)
                 *pw_output_format = (u16)param;
 
         return err;
 }
 
-u16 hpi_bitstream_set_clock_edge(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 edge_type)
+u16 hpi_bitstream_set_clock_edge(u32 h_control, u16 edge_type)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_BITSTREAM_CLOCK_EDGE, edge_type, 0);
+        return hpi_control_param_set(h_control, HPI_BITSTREAM_CLOCK_EDGE,
+                edge_type, 0);
 }
 
-u16 hpi_bitstream_set_data_polarity(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 polarity)
+u16 hpi_bitstream_set_data_polarity(u32 h_control, u16 polarity)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_BITSTREAM_DATA_POLARITY, polarity, 0);
+        return hpi_control_param_set(h_control, HPI_BITSTREAM_DATA_POLARITY,
+                polarity, 0);
 }
 
-u16 hpi_bitstream_get_activity(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *pw_clk_activity, u16 *pw_data_activity)
+u16 hpi_bitstream_get_activity(u32 h_control, u16 *pw_clk_activity,
+        u16 *pw_data_activity)
 {
         struct hpi_message hm;
         struct hpi_response hr;
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_GET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.c.attribute = HPI_BITSTREAM_ACTIVITY;
         hpi_send_recv(&hm, &hr);
         if (pw_clk_activity)
@@ -1785,45 +1765,43 @@ u16 hpi_bitstream_get_activity(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_channel_mode_query_mode(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_mode, const u32 index, u16 *pw_mode)
+u16 hpi_channel_mode_query_mode(const u32 h_mode, const u32 index,
+        u16 *pw_mode)
 {
         u32 qr;
         u16 err;
 
-        err = hpi_control_query(ph_subsys, h_mode, HPI_CHANNEL_MODE_MODE,
-                index, 0, &qr);
+        err = hpi_control_query(h_mode, HPI_CHANNEL_MODE_MODE, index, 0, &qr);
         *pw_mode = (u16)qr;
         return err;
 }
 
-u16 hpi_channel_mode_set(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u16 mode)
+u16 hpi_channel_mode_set(u32 h_control, u16 mode)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_CHANNEL_MODE_MODE, mode, 0);
+        return hpi_control_param_set(h_control, HPI_CHANNEL_MODE_MODE, mode,
+                0);
 }
 
-u16 hpi_channel_mode_get(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u16 *mode)
+u16 hpi_channel_mode_get(u32 h_control, u16 *mode)
 {
         u32 mode32 = 0;
-        u16 error = hpi_control_param1_get(ph_subsys, h_control,
+        u16 error = hpi_control_param1_get(h_control,
                 HPI_CHANNEL_MODE_MODE, &mode32);
         if (mode)
                 *mode = (u16)mode32;
         return error;
 }
 
-u16 hpi_cobranet_hmi_write(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u32 hmi_address, u32 byte_count, u8 *pb_data)
+u16 hpi_cobranet_hmi_write(u32 h_control, u32 hmi_address, u32 byte_count,
+        u8 *pb_data)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROLEX,
                 HPI_CONTROL_SET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
 
         hm.u.cx.u.cobranet_data.byte_count = byte_count;
         hm.u.cx.u.cobranet_data.hmi_address = hmi_address;
@@ -1841,15 +1819,16 @@ u16 hpi_cobranet_hmi_write(const struct hpi_hsubsys *ph_subsys, u32 h_control,
         return hr.error;
 }
 
-u16 hpi_cobranet_hmi_read(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u32 hmi_address, u32 max_byte_count, u32 *pbyte_count, u8 *pb_data)
+u16 hpi_cobranet_hmi_read(u32 h_control, u32 hmi_address, u32 max_byte_count,
+        u32 *pbyte_count, u8 *pb_data)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROLEX,
                 HPI_CONTROL_GET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
 
         hm.u.cx.u.cobranet_data.byte_count = max_byte_count;
         hm.u.cx.u.cobranet_data.hmi_address = hmi_address;
@@ -1880,16 +1859,16 @@ u16 hpi_cobranet_hmi_read(const struct hpi_hsubsys *ph_subsys, u32 h_control,
         return hr.error;
 }
 
-u16 hpi_cobranet_hmi_get_status(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *pstatus, u32 *preadable_size,
-        u32 *pwriteable_size)
+u16 hpi_cobranet_hmi_get_status(u32 h_control, u32 *pstatus,
+        u32 *preadable_size, u32 *pwriteable_size)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROLEX,
                 HPI_CONTROL_GET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
 
         hm.u.cx.attribute = HPI_COBRANET_GET_STATUS;
 
@@ -1907,97 +1886,93 @@ u16 hpi_cobranet_hmi_get_status(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_cobranet_getI_paddress(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *pi_paddress)
+u16 hpi_cobranet_get_ip_address(u32 h_control, u32 *pdw_ip_address)
 {
         u32 byte_count;
         u32 iP;
         u16 error;
 
-        error = hpi_cobranet_hmi_read(ph_subsys, h_control,
+        error = hpi_cobranet_hmi_read(h_control,
                 HPI_COBRANET_HMI_cobra_ip_mon_currentIP, 4, &byte_count,
                 (u8 *)&iP);
 
-        *pi_paddress =
+        *pdw_ip_address =
                 ((iP & 0xff000000) >> 8) | ((iP & 0x00ff0000) << 8) | ((iP &
                         0x0000ff00) >> 8) | ((iP & 0x000000ff) << 8);
 
         if (error)
-                *pi_paddress = 0;
+                *pdw_ip_address = 0;
 
         return error;
 
 }
 
-u16 hpi_cobranet_setI_paddress(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 i_paddress)
+u16 hpi_cobranet_set_ip_address(u32 h_control, u32 dw_ip_address)
 {
         u32 iP;
         u16 error;
 
-        iP = ((i_paddress & 0xff000000) >> 8) | ((i_paddress & 0x00ff0000) <<
-                8) | ((i_paddress & 0x0000ff00) >> 8) | ((i_paddress &
-                        0x000000ff) << 8);
+        iP = ((dw_ip_address & 0xff000000) >> 8) | ((dw_ip_address &
+                        0x00ff0000) << 8) | ((dw_ip_address & 0x0000ff00) >>
+                8) | ((dw_ip_address & 0x000000ff) << 8);
 
-        error = hpi_cobranet_hmi_write(ph_subsys, h_control,
+        error = hpi_cobranet_hmi_write(h_control,
                 HPI_COBRANET_HMI_cobra_ip_mon_currentIP, 4, (u8 *)&iP);
 
         return error;
 
 }
 
-u16 hpi_cobranet_get_staticI_paddress(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *pi_paddress)
+u16 hpi_cobranet_get_static_ip_address(u32 h_control, u32 *pdw_ip_address)
 {
         u32 byte_count;
         u32 iP;
         u16 error;
-        error = hpi_cobranet_hmi_read(ph_subsys, h_control,
+        error = hpi_cobranet_hmi_read(h_control,
                 HPI_COBRANET_HMI_cobra_ip_mon_staticIP, 4, &byte_count,
                 (u8 *)&iP);
 
-        *pi_paddress =
+        *pdw_ip_address =
                 ((iP & 0xff000000) >> 8) | ((iP & 0x00ff0000) << 8) | ((iP &
                         0x0000ff00) >> 8) | ((iP & 0x000000ff) << 8);
 
         if (error)
-                *pi_paddress = 0;
+                *pdw_ip_address = 0;
 
         return error;
 
 }
 
-u16 hpi_cobranet_set_staticI_paddress(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 i_paddress)
+u16 hpi_cobranet_set_static_ip_address(u32 h_control, u32 dw_ip_address)
 {
         u32 iP;
         u16 error;
 
-        iP = ((i_paddress & 0xff000000) >> 8) | ((i_paddress & 0x00ff0000) <<
-                8) | ((i_paddress & 0x0000ff00) >> 8) | ((i_paddress &
-                        0x000000ff) << 8);
+        iP = ((dw_ip_address & 0xff000000) >> 8) | ((dw_ip_address &
+                        0x00ff0000) << 8) | ((dw_ip_address & 0x0000ff00) >>
+                8) | ((dw_ip_address & 0x000000ff) << 8);
 
-        error = hpi_cobranet_hmi_write(ph_subsys, h_control,
+        error = hpi_cobranet_hmi_write(h_control,
                 HPI_COBRANET_HMI_cobra_ip_mon_staticIP, 4, (u8 *)&iP);
 
         return error;
 
 }
 
-u16 hpi_cobranet_getMA_caddress(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *pmAC_MS_bs, u32 *pmAC_LS_bs)
+u16 hpi_cobranet_get_macaddress(u32 h_control, u32 *pmAC_MS_bs,
+        u32 *pmAC_LS_bs)
 {
         u32 byte_count;
         u16 error;
         u32 mAC;
 
-        error = hpi_cobranet_hmi_read(ph_subsys, h_control,
+        error = hpi_cobranet_hmi_read(h_control,
                 HPI_COBRANET_HMI_cobra_if_phy_address, 4, &byte_count,
                 (u8 *)&mAC);
         *pmAC_MS_bs =
                 ((mAC & 0xff000000) >> 8) | ((mAC & 0x00ff0000) << 8) | ((mAC
                         & 0x0000ff00) >> 8) | ((mAC & 0x000000ff) << 8);
-        error += hpi_cobranet_hmi_read(ph_subsys, h_control,
+        error += hpi_cobranet_hmi_read(h_control,
                 HPI_COBRANET_HMI_cobra_if_phy_address + 1, 4, &byte_count,
                 (u8 *)&mAC);
         *pmAC_LS_bs =
@@ -2012,72 +1987,68 @@ u16 hpi_cobranet_getMA_caddress(const struct hpi_hsubsys *ph_subsys,
         return error;
 }
 
-u16 hpi_compander_set_enable(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 enable)
+u16 hpi_compander_set_enable(u32 h_control, u32 enable)
 {
-        return hpi_control_param_set(ph_subsys, h_control, HPI_GENERIC_ENABLE,
-                enable, 0);
+        return hpi_control_param_set(h_control, HPI_GENERIC_ENABLE, enable,
+                0);
 }
 
-u16 hpi_compander_get_enable(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *enable)
+u16 hpi_compander_get_enable(u32 h_control, u32 *enable)
 {
-        return hpi_control_param1_get(ph_subsys, h_control,
-                HPI_GENERIC_ENABLE, enable);
+        return hpi_control_param1_get(h_control, HPI_GENERIC_ENABLE, enable);
 }
 
-u16 hpi_compander_set_makeup_gain(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, short makeup_gain0_01dB)
+u16 hpi_compander_set_makeup_gain(u32 h_control, short makeup_gain0_01dB)
 {
         return hpi_control_log_set2(h_control, HPI_COMPANDER_MAKEUPGAIN,
                 makeup_gain0_01dB, 0);
 }
 
-u16 hpi_compander_get_makeup_gain(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, short *makeup_gain0_01dB)
+u16 hpi_compander_get_makeup_gain(u32 h_control, short *makeup_gain0_01dB)
 {
-        return hpi_control_log_get2(ph_subsys, h_control,
-                HPI_COMPANDER_MAKEUPGAIN, makeup_gain0_01dB, NULL);
+        return hpi_control_log_get2(h_control, HPI_COMPANDER_MAKEUPGAIN,
+                makeup_gain0_01dB, NULL);
 }
 
-u16 hpi_compander_set_attack_time_constant(const struct hpi_hsubsys
-        *ph_subsys, u32 h_control, unsigned int index, u32 attack)
+u16 hpi_compander_set_attack_time_constant(u32 h_control, unsigned int index,
+        u32 attack)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_COMPANDER_ATTACK, attack, index);
+        return hpi_control_param_set(h_control, HPI_COMPANDER_ATTACK, attack,
+                index);
 }
 
-u16 hpi_compander_get_attack_time_constant(const struct hpi_hsubsys
-        *ph_subsys, u32 h_control, unsigned int index, u32 *attack)
+u16 hpi_compander_get_attack_time_constant(u32 h_control, unsigned int index,
+        u32 *attack)
 {
-        return hpi_control_param_get(ph_subsys, h_control,
-                HPI_COMPANDER_ATTACK, 0, index, attack, NULL);
+        return hpi_control_param_get(h_control, HPI_COMPANDER_ATTACK, 0,
+                index, attack, NULL);
 }
 
-u16 hpi_compander_set_decay_time_constant(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, unsigned int index, u32 decay)
+u16 hpi_compander_set_decay_time_constant(u32 h_control, unsigned int index,
+        u32 decay)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_COMPANDER_DECAY, decay, index);
+        return hpi_control_param_set(h_control, HPI_COMPANDER_DECAY, decay,
+                index);
 }
 
-u16 hpi_compander_get_decay_time_constant(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, unsigned int index, u32 *decay)
+u16 hpi_compander_get_decay_time_constant(u32 h_control, unsigned int index,
+        u32 *decay)
 {
-        return hpi_control_param_get(ph_subsys, h_control,
-                HPI_COMPANDER_DECAY, 0, index, decay, NULL);
+        return hpi_control_param_get(h_control, HPI_COMPANDER_DECAY, 0, index,
+                decay, NULL);
 
 }
 
-u16 hpi_compander_set_threshold(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, unsigned int index, short threshold0_01dB)
+u16 hpi_compander_set_threshold(u32 h_control, unsigned int index,
+        short threshold0_01dB)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_SET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.c.attribute = HPI_COMPANDER_THRESHOLD;
         hm.u.c.param2 = index;
         hm.u.c.an_log_value[0] = threshold0_01dB;
@@ -2087,15 +2058,16 @@ u16 hpi_compander_set_threshold(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_compander_get_threshold(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, unsigned int index, short *threshold0_01dB)
+u16 hpi_compander_get_threshold(u32 h_control, unsigned int index,
+        short *threshold0_01dB)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_GET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.c.attribute = HPI_COMPANDER_THRESHOLD;
         hm.u.c.param2 = index;
 
@@ -2105,29 +2077,28 @@ u16 hpi_compander_get_threshold(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_compander_set_ratio(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 index, u32 ratio100)
+u16 hpi_compander_set_ratio(u32 h_control, u32 index, u32 ratio100)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_COMPANDER_RATIO, ratio100, index);
+        return hpi_control_param_set(h_control, HPI_COMPANDER_RATIO, ratio100,
+                index);
 }
 
-u16 hpi_compander_get_ratio(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 index, u32 *ratio100)
+u16 hpi_compander_get_ratio(u32 h_control, u32 index, u32 *ratio100)
 {
-        return hpi_control_param_get(ph_subsys, h_control,
-                HPI_COMPANDER_RATIO, 0, index, ratio100, NULL);
+        return hpi_control_param_get(h_control, HPI_COMPANDER_RATIO, 0, index,
+                ratio100, NULL);
 }
 
-u16 hpi_level_query_range(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short *min_gain_01dB, short *max_gain_01dB, short *step_gain_01dB)
+u16 hpi_level_query_range(u32 h_control, short *min_gain_01dB,
+        short *max_gain_01dB, short *step_gain_01dB)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_GET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.c.attribute = HPI_LEVEL_RANGE;
 
         hpi_send_recv(&hm, &hr);
@@ -2145,31 +2116,27 @@ u16 hpi_level_query_range(const struct hpi_hsubsys *ph_subsys, u32 h_control,
         return hr.error;
 }
 
-u16 hpi_level_set_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short an_gain0_01dB[HPI_MAX_CHANNELS]
+u16 hpi_level_set_gain(u32 h_control, short an_gain0_01dB[HPI_MAX_CHANNELS]
         )
 {
         return hpi_control_log_set2(h_control, HPI_LEVEL_GAIN,
                 an_gain0_01dB[0], an_gain0_01dB[1]);
 }
 
-u16 hpi_level_get_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short an_gain0_01dB[HPI_MAX_CHANNELS]
+u16 hpi_level_get_gain(u32 h_control, short an_gain0_01dB[HPI_MAX_CHANNELS]
         )
 {
-        return hpi_control_log_get2(ph_subsys, h_control, HPI_LEVEL_GAIN,
+        return hpi_control_log_get2(h_control, HPI_LEVEL_GAIN,
                 &an_gain0_01dB[0], &an_gain0_01dB[1]);
 }
 
-u16 hpi_meter_query_channels(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_meter, u32 *p_channels)
+u16 hpi_meter_query_channels(const u32 h_meter, u32 *p_channels)
 {
-        return hpi_control_query(ph_subsys, h_meter, HPI_METER_NUM_CHANNELS,
-                0, 0, p_channels);
+        return hpi_control_query(h_meter, HPI_METER_NUM_CHANNELS, 0, 0,
+                p_channels);
 }
 
-u16 hpi_meter_get_peak(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short an_peakdB[HPI_MAX_CHANNELS]
+u16 hpi_meter_get_peak(u32 h_control, short an_peakdB[HPI_MAX_CHANNELS]
         )
 {
         short i = 0;
@@ -2179,7 +2146,8 @@ u16 hpi_meter_get_peak(const struct hpi_hsubsys *ph_subsys, u32 h_control,
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_GET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.obj_index = hm.obj_index;
         hm.u.c.attribute = HPI_METER_PEAK;
 
@@ -2194,8 +2162,7 @@ u16 hpi_meter_get_peak(const struct hpi_hsubsys *ph_subsys, u32 h_control,
         return hr.error;
 }
 
-u16 hpi_meter_get_rms(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short an_rmsdB[HPI_MAX_CHANNELS]
+u16 hpi_meter_get_rms(u32 h_control, short an_rmsdB[HPI_MAX_CHANNELS]
         )
 {
         short i = 0;
@@ -2205,7 +2172,8 @@ u16 hpi_meter_get_rms(const struct hpi_hsubsys *ph_subsys, u32 h_control,
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_GET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.c.attribute = HPI_METER_RMS;
 
         hpi_send_recv(&hm, &hr);
@@ -2220,22 +2188,20 @@ u16 hpi_meter_get_rms(const struct hpi_hsubsys *ph_subsys, u32 h_control,
         return hr.error;
 }
 
-u16 hpi_meter_set_rms_ballistics(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 attack, u16 decay)
+u16 hpi_meter_set_rms_ballistics(u32 h_control, u16 attack, u16 decay)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_METER_RMS_BALLISTICS, attack, decay);
+        return hpi_control_param_set(h_control, HPI_METER_RMS_BALLISTICS,
+                attack, decay);
 }
 
-u16 hpi_meter_get_rms_ballistics(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *pn_attack, u16 *pn_decay)
+u16 hpi_meter_get_rms_ballistics(u32 h_control, u16 *pn_attack, u16 *pn_decay)
 {
         u32 attack;
         u32 decay;
         u16 error;
 
-        error = hpi_control_param2_get(ph_subsys, h_control,
-                HPI_METER_RMS_BALLISTICS, &attack, &decay);
+        error = hpi_control_param2_get(h_control, HPI_METER_RMS_BALLISTICS,
+                &attack, &decay);
 
         if (pn_attack)
                 *pn_attack = (unsigned short)attack;
@@ -2245,22 +2211,21 @@ u16 hpi_meter_get_rms_ballistics(const struct hpi_hsubsys *ph_subsys,
         return error;
 }
 
-u16 hpi_meter_set_peak_ballistics(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 attack, u16 decay)
+u16 hpi_meter_set_peak_ballistics(u32 h_control, u16 attack, u16 decay)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_METER_PEAK_BALLISTICS, attack, decay);
+        return hpi_control_param_set(h_control, HPI_METER_PEAK_BALLISTICS,
+                attack, decay);
 }
 
-u16 hpi_meter_get_peak_ballistics(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *pn_attack, u16 *pn_decay)
+u16 hpi_meter_get_peak_ballistics(u32 h_control, u16 *pn_attack,
+        u16 *pn_decay)
 {
         u32 attack;
         u32 decay;
         u16 error;
 
-        error = hpi_control_param2_get(ph_subsys, h_control,
-                HPI_METER_PEAK_BALLISTICS, &attack, &decay);
+        error = hpi_control_param2_get(h_control, HPI_METER_PEAK_BALLISTICS,
+                &attack, &decay);
 
         if (pn_attack)
                 *pn_attack = (short)attack;
@@ -2270,37 +2235,35 @@ u16 hpi_meter_get_peak_ballistics(const struct hpi_hsubsys *ph_subsys,
         return error;
 }
 
-u16 hpi_microphone_set_phantom_power(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 on_off)
+u16 hpi_microphone_set_phantom_power(u32 h_control, u16 on_off)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_MICROPHONE_PHANTOM_POWER, (u32)on_off, 0);
+        return hpi_control_param_set(h_control, HPI_MICROPHONE_PHANTOM_POWER,
+                (u32)on_off, 0);
 }
 
-u16 hpi_microphone_get_phantom_power(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *pw_on_off)
+u16 hpi_microphone_get_phantom_power(u32 h_control, u16 *pw_on_off)
 {
         u16 error = 0;
         u32 on_off = 0;
-        error = hpi_control_param1_get(ph_subsys, h_control,
+        error = hpi_control_param1_get(h_control,
                 HPI_MICROPHONE_PHANTOM_POWER, &on_off);
         if (pw_on_off)
                 *pw_on_off = (u16)on_off;
         return error;
 }
 
-u16 hpi_multiplexer_set_source(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 source_node_type, u16 source_node_index)
+u16 hpi_multiplexer_set_source(u32 h_control, u16 source_node_type,
+        u16 source_node_index)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_MULTIPLEXER_SOURCE, source_node_type, source_node_index);
+        return hpi_control_param_set(h_control, HPI_MULTIPLEXER_SOURCE,
+                source_node_type, source_node_index);
 }
 
-u16 hpi_multiplexer_get_source(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *source_node_type, u16 *source_node_index)
+u16 hpi_multiplexer_get_source(u32 h_control, u16 *source_node_type,
+        u16 *source_node_index)
 {
         u32 node, index;
-        u16 error = hpi_control_param2_get(ph_subsys, h_control,
+        u16 error = hpi_control_param2_get(h_control,
                 HPI_MULTIPLEXER_SOURCE, &node,
                 &index);
         if (source_node_type)
@@ -2310,15 +2273,15 @@ u16 hpi_multiplexer_get_source(const struct hpi_hsubsys *ph_subsys,
         return error;
 }
 
-u16 hpi_multiplexer_query_source(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 index, u16 *source_node_type,
-        u16 *source_node_index)
+u16 hpi_multiplexer_query_source(u32 h_control, u16 index,
+        u16 *source_node_type, u16 *source_node_index)
 {
         struct hpi_message hm;
         struct hpi_response hr;
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_GET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.c.attribute = HPI_MULTIPLEXER_QUERYSOURCE;
         hm.u.c.param1 = index;
 
@@ -2331,15 +2294,15 @@ u16 hpi_multiplexer_query_source(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_parametricEQ__get_info(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *pw_number_of_bands, u16 *pw_on_off)
+u16 hpi_parametric_eq_get_info(u32 h_control, u16 *pw_number_of_bands,
+        u16 *pw_on_off)
 {
         u32 oB = 0;
         u32 oO = 0;
         u16 error = 0;
 
-        error = hpi_control_param2_get(ph_subsys, h_control,
-                HPI_EQUALIZER_NUM_FILTERS, &oO, &oB);
+        error = hpi_control_param2_get(h_control, HPI_EQUALIZER_NUM_FILTERS,
+                &oO, &oB);
         if (pw_number_of_bands)
                 *pw_number_of_bands = (u16)oB;
         if (pw_on_off)
@@ -2347,23 +2310,22 @@ u16 hpi_parametricEQ__get_info(const struct hpi_hsubsys *ph_subsys,
         return error;
 }
 
-u16 hpi_parametricEQ__set_state(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 on_off)
+u16 hpi_parametric_eq_set_state(u32 h_control, u16 on_off)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_EQUALIZER_NUM_FILTERS, on_off, 0);
+        return hpi_control_param_set(h_control, HPI_EQUALIZER_NUM_FILTERS,
+                on_off, 0);
 }
 
-u16 hpi_parametricEQ__get_band(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 index, u16 *pn_type, u32 *pfrequency_hz,
-        short *pnQ100, short *pn_gain0_01dB)
+u16 hpi_parametric_eq_get_band(u32 h_control, u16 index, u16 *pn_type,
+        u32 *pfrequency_hz, short *pnQ100, short *pn_gain0_01dB)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_GET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.c.attribute = HPI_EQUALIZER_FILTER;
         hm.u.c.param2 = index;
 
@@ -2381,16 +2343,16 @@ u16 hpi_parametricEQ__get_band(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_parametricEQ__set_band(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 index, u16 type, u32 frequency_hz, short q100,
-        short gain0_01dB)
+u16 hpi_parametric_eq_set_band(u32 h_control, u16 index, u16 type,
+        u32 frequency_hz, short q100, short gain0_01dB)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_SET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
 
         hm.u.c.param1 = frequency_hz;
         hm.u.c.param2 = (index & 0xFFFFL) + ((u32)type << 16);
@@ -2403,8 +2365,7 @@ u16 hpi_parametricEQ__set_band(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_parametricEQ__get_coeffs(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 index, short coeffs[5]
+u16 hpi_parametric_eq_get_coeffs(u32 h_control, u16 index, short coeffs[5]
         )
 {
         struct hpi_message hm;
@@ -2412,7 +2373,8 @@ u16 hpi_parametricEQ__get_coeffs(const struct hpi_hsubsys *ph_subsys,
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_GET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.c.attribute = HPI_EQUALIZER_COEFFICIENTS;
         hm.u.c.param2 = index;
 
@@ -2427,64 +2389,59 @@ u16 hpi_parametricEQ__get_coeffs(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_sample_clock_query_source(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_clock, const u32 index, u16 *pw_source)
+u16 hpi_sample_clock_query_source(const u32 h_clock, const u32 index,
+        u16 *pw_source)
 {
         u32 qr;
         u16 err;
 
-        err = hpi_control_query(ph_subsys, h_clock, HPI_SAMPLECLOCK_SOURCE,
-                index, 0, &qr);
+        err = hpi_control_query(h_clock, HPI_SAMPLECLOCK_SOURCE, index, 0,
+                &qr);
         *pw_source = (u16)qr;
         return err;
 }
 
-u16 hpi_sample_clock_set_source(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 source)
+u16 hpi_sample_clock_set_source(u32 h_control, u16 source)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_SAMPLECLOCK_SOURCE, source, 0);
+        return hpi_control_param_set(h_control, HPI_SAMPLECLOCK_SOURCE,
+                source, 0);
 }
 
-u16 hpi_sample_clock_get_source(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *pw_source)
+u16 hpi_sample_clock_get_source(u32 h_control, u16 *pw_source)
 {
         u16 error = 0;
         u32 source = 0;
-        error = hpi_control_param1_get(ph_subsys, h_control,
-                HPI_SAMPLECLOCK_SOURCE, &source);
+        error = hpi_control_param1_get(h_control, HPI_SAMPLECLOCK_SOURCE,
+                &source);
         if (!error)
                 if (pw_source)
                         *pw_source = (u16)source;
         return error;
 }
 
-u16 hpi_sample_clock_query_source_index(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_clock, const u32 index, const u32 source,
-        u16 *pw_source_index)
+u16 hpi_sample_clock_query_source_index(const u32 h_clock, const u32 index,
+        const u32 source, u16 *pw_source_index)
 {
         u32 qr;
         u16 err;
 
-        err = hpi_control_query(ph_subsys, h_clock,
-                HPI_SAMPLECLOCK_SOURCE_INDEX, index, source, &qr);
+        err = hpi_control_query(h_clock, HPI_SAMPLECLOCK_SOURCE_INDEX, index,
+                source, &qr);
         *pw_source_index = (u16)qr;
         return err;
 }
 
-u16 hpi_sample_clock_set_source_index(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 source_index)
+u16 hpi_sample_clock_set_source_index(u32 h_control, u16 source_index)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_SAMPLECLOCK_SOURCE_INDEX, source_index, 0);
+        return hpi_control_param_set(h_control, HPI_SAMPLECLOCK_SOURCE_INDEX,
+                source_index, 0);
 }
 
-u16 hpi_sample_clock_get_source_index(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u16 *pw_source_index)
+u16 hpi_sample_clock_get_source_index(u32 h_control, u16 *pw_source_index)
 {
         u16 error = 0;
         u32 source_index = 0;
-        error = hpi_control_param1_get(ph_subsys, h_control,
+        error = hpi_control_param1_get(h_control,
                 HPI_SAMPLECLOCK_SOURCE_INDEX, &source_index);
         if (!error)
                 if (pw_source_index)
@@ -2492,29 +2449,27 @@ u16 hpi_sample_clock_get_source_index(const struct hpi_hsubsys *ph_subsys,
         return error;
 }
 
-u16 hpi_sample_clock_query_local_rate(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_clock, const u32 index, u32 *prate)
+u16 hpi_sample_clock_query_local_rate(const u32 h_clock, const u32 index,
+        u32 *prate)
 {
         u16 err;
-        err = hpi_control_query(ph_subsys, h_clock,
-                HPI_SAMPLECLOCK_LOCAL_SAMPLERATE, index, 0, prate);
+        err = hpi_control_query(h_clock, HPI_SAMPLECLOCK_LOCAL_SAMPLERATE,
+                index, 0, prate);
 
         return err;
 }
 
-u16 hpi_sample_clock_set_local_rate(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 sample_rate)
+u16 hpi_sample_clock_set_local_rate(u32 h_control, u32 sample_rate)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
+        return hpi_control_param_set(h_control,
                 HPI_SAMPLECLOCK_LOCAL_SAMPLERATE, sample_rate, 0);
 }
 
-u16 hpi_sample_clock_get_local_rate(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *psample_rate)
+u16 hpi_sample_clock_get_local_rate(u32 h_control, u32 *psample_rate)
 {
         u16 error = 0;
         u32 sample_rate = 0;
-        error = hpi_control_param1_get(ph_subsys, h_control,
+        error = hpi_control_param1_get(h_control,
                 HPI_SAMPLECLOCK_LOCAL_SAMPLERATE, &sample_rate);
         if (!error)
                 if (psample_rate)
@@ -2522,260 +2477,221 @@ u16 hpi_sample_clock_get_local_rate(const struct hpi_hsubsys *ph_subsys,
         return error;
 }
 
-u16 hpi_sample_clock_get_sample_rate(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *psample_rate)
+u16 hpi_sample_clock_get_sample_rate(u32 h_control, u32 *psample_rate)
 {
         u16 error = 0;
         u32 sample_rate = 0;
-        error = hpi_control_param1_get(ph_subsys, h_control,
-                HPI_SAMPLECLOCK_SAMPLERATE, &sample_rate);
+        error = hpi_control_param1_get(h_control, HPI_SAMPLECLOCK_SAMPLERATE,
+                &sample_rate);
         if (!error)
                 if (psample_rate)
                         *psample_rate = sample_rate;
         return error;
 }
 
-u16 hpi_sample_clock_set_auto(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 enable)
+u16 hpi_sample_clock_set_auto(u32 h_control, u32 enable)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_SAMPLECLOCK_AUTO, enable, 0);
+        return hpi_control_param_set(h_control, HPI_SAMPLECLOCK_AUTO, enable,
+                0);
 }
 
-u16 hpi_sample_clock_get_auto(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *penable)
+u16 hpi_sample_clock_get_auto(u32 h_control, u32 *penable)
 {
-        return hpi_control_param1_get(ph_subsys, h_control,
-                HPI_SAMPLECLOCK_AUTO, penable);
+        return hpi_control_param1_get(h_control, HPI_SAMPLECLOCK_AUTO,
+                penable);
 }
 
-u16 hpi_sample_clock_set_local_rate_lock(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 lock)
+u16 hpi_sample_clock_set_local_rate_lock(u32 h_control, u32 lock)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_SAMPLECLOCK_LOCAL_LOCK, lock, 0);
+        return hpi_control_param_set(h_control, HPI_SAMPLECLOCK_LOCAL_LOCK,
+                lock, 0);
 }
 
-u16 hpi_sample_clock_get_local_rate_lock(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *plock)
+u16 hpi_sample_clock_get_local_rate_lock(u32 h_control, u32 *plock)
 {
-        return hpi_control_param1_get(ph_subsys, h_control,
-                HPI_SAMPLECLOCK_LOCAL_LOCK, plock);
+        return hpi_control_param1_get(h_control, HPI_SAMPLECLOCK_LOCAL_LOCK,
+                plock);
 }
 
-u16 hpi_tone_detector_get_frequency(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 index, u32 *frequency)
+u16 hpi_tone_detector_get_frequency(u32 h_control, u32 index, u32 *frequency)
 {
-        return hpi_control_param_get(ph_subsys, h_control,
-                HPI_TONEDETECTOR_FREQUENCY, index, 0, frequency, NULL);
+        return hpi_control_param_get(h_control, HPI_TONEDETECTOR_FREQUENCY,
+                index, 0, frequency, NULL);
 }
 
-u16 hpi_tone_detector_get_state(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *state)
+u16 hpi_tone_detector_get_state(u32 h_control, u32 *state)
 {
-        return hpi_control_param1_get(ph_subsys, h_control,
-                HPI_TONEDETECTOR_STATE, state);
+        return hpi_control_param1_get(h_control, HPI_TONEDETECTOR_STATE,
+                state);
 }
 
-u16 hpi_tone_detector_set_enable(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 enable)
+u16 hpi_tone_detector_set_enable(u32 h_control, u32 enable)
 {
-        return hpi_control_param_set(ph_subsys, h_control, HPI_GENERIC_ENABLE,
-                enable, 0);
+        return hpi_control_param_set(h_control, HPI_GENERIC_ENABLE, enable,
+                0);
 }
 
-u16 hpi_tone_detector_get_enable(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *enable)
+u16 hpi_tone_detector_get_enable(u32 h_control, u32 *enable)
 {
-        return hpi_control_param1_get(ph_subsys, h_control,
-                HPI_GENERIC_ENABLE, enable);
+        return hpi_control_param1_get(h_control, HPI_GENERIC_ENABLE, enable);
 }
 
-u16 hpi_tone_detector_set_event_enable(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 event_enable)
+u16 hpi_tone_detector_set_event_enable(u32 h_control, u32 event_enable)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_GENERIC_EVENT_ENABLE, (u32)event_enable, 0);
+        return hpi_control_param_set(h_control, HPI_GENERIC_EVENT_ENABLE,
+                (u32)event_enable, 0);
 }
 
-u16 hpi_tone_detector_get_event_enable(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *event_enable)
+u16 hpi_tone_detector_get_event_enable(u32 h_control, u32 *event_enable)
 {
-        return hpi_control_param1_get(ph_subsys, h_control,
-                HPI_GENERIC_EVENT_ENABLE, event_enable);
+        return hpi_control_param1_get(h_control, HPI_GENERIC_EVENT_ENABLE,
+                event_enable);
 }
 
-u16 hpi_tone_detector_set_threshold(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, int threshold)
+u16 hpi_tone_detector_set_threshold(u32 h_control, int threshold)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_TONEDETECTOR_THRESHOLD, (u32)threshold, 0);
+        return hpi_control_param_set(h_control, HPI_TONEDETECTOR_THRESHOLD,
+                (u32)threshold, 0);
 }
 
-u16 hpi_tone_detector_get_threshold(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, int *threshold)
+u16 hpi_tone_detector_get_threshold(u32 h_control, int *threshold)
 {
-        return hpi_control_param1_get(ph_subsys, h_control,
-                HPI_TONEDETECTOR_THRESHOLD, (u32 *)threshold);
+        return hpi_control_param1_get(h_control, HPI_TONEDETECTOR_THRESHOLD,
+                (u32 *)threshold);
 }
 
-u16 hpi_silence_detector_get_state(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *state)
+u16 hpi_silence_detector_get_state(u32 h_control, u32 *state)
 {
-        return hpi_control_param1_get(ph_subsys, h_control,
-                HPI_SILENCEDETECTOR_STATE, state);
+        return hpi_control_param1_get(h_control, HPI_SILENCEDETECTOR_STATE,
+                state);
 }
 
-u16 hpi_silence_detector_set_enable(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 enable)
+u16 hpi_silence_detector_set_enable(u32 h_control, u32 enable)
 {
-        return hpi_control_param_set(ph_subsys, h_control, HPI_GENERIC_ENABLE,
-                enable, 0);
+        return hpi_control_param_set(h_control, HPI_GENERIC_ENABLE, enable,
+                0);
 }
 
-u16 hpi_silence_detector_get_enable(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *enable)
+u16 hpi_silence_detector_get_enable(u32 h_control, u32 *enable)
 {
-        return hpi_control_param1_get(ph_subsys, h_control,
-                HPI_GENERIC_ENABLE, enable);
+        return hpi_control_param1_get(h_control, HPI_GENERIC_ENABLE, enable);
 }
 
-u16 hpi_silence_detector_set_event_enable(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 event_enable)
+u16 hpi_silence_detector_set_event_enable(u32 h_control, u32 event_enable)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_GENERIC_EVENT_ENABLE, event_enable, 0);
+        return hpi_control_param_set(h_control, HPI_GENERIC_EVENT_ENABLE,
+                event_enable, 0);
 }
 
-u16 hpi_silence_detector_get_event_enable(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *event_enable)
+u16 hpi_silence_detector_get_event_enable(u32 h_control, u32 *event_enable)
 {
-        return hpi_control_param1_get(ph_subsys, h_control,
-                HPI_GENERIC_EVENT_ENABLE, event_enable);
+        return hpi_control_param1_get(h_control, HPI_GENERIC_EVENT_ENABLE,
+                event_enable);
 }
 
-u16 hpi_silence_detector_set_delay(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 delay)
+u16 hpi_silence_detector_set_delay(u32 h_control, u32 delay)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_SILENCEDETECTOR_DELAY, delay, 0);
+        return hpi_control_param_set(h_control, HPI_SILENCEDETECTOR_DELAY,
+                delay, 0);
 }
 
-u16 hpi_silence_detector_get_delay(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *delay)
+u16 hpi_silence_detector_get_delay(u32 h_control, u32 *delay)
 {
-        return hpi_control_param1_get(ph_subsys, h_control,
-                HPI_SILENCEDETECTOR_DELAY, delay);
+        return hpi_control_param1_get(h_control, HPI_SILENCEDETECTOR_DELAY,
+                delay);
 }
 
-u16 hpi_silence_detector_set_threshold(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, int threshold)
+u16 hpi_silence_detector_set_threshold(u32 h_control, int threshold)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_SILENCEDETECTOR_THRESHOLD, threshold, 0);
+        return hpi_control_param_set(h_control, HPI_SILENCEDETECTOR_THRESHOLD,
+                threshold, 0);
 }
 
-u16 hpi_silence_detector_get_threshold(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, int *threshold)
+u16 hpi_silence_detector_get_threshold(u32 h_control, int *threshold)
 {
-        return hpi_control_param1_get(ph_subsys, h_control,
+        return hpi_control_param1_get(h_control,
                 HPI_SILENCEDETECTOR_THRESHOLD, (u32 *)threshold);
 }
 
-u16 hpi_tuner_query_band(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_tuner, const u32 index, u16 *pw_band)
+u16 hpi_tuner_query_band(const u32 h_tuner, const u32 index, u16 *pw_band)
 {
         u32 qr;
         u16 err;
 
-        err = hpi_control_query(ph_subsys, h_tuner, HPI_TUNER_BAND, index, 0,
-                &qr);
+        err = hpi_control_query(h_tuner, HPI_TUNER_BAND, index, 0, &qr);
         *pw_band = (u16)qr;
         return err;
 }
 
-u16 hpi_tuner_set_band(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u16 band)
+u16 hpi_tuner_set_band(u32 h_control, u16 band)
 {
-        return hpi_control_param_set(ph_subsys, h_control, HPI_TUNER_BAND,
-                band, 0);
+        return hpi_control_param_set(h_control, HPI_TUNER_BAND, band, 0);
 }
 
-u16 hpi_tuner_get_band(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u16 *pw_band)
+u16 hpi_tuner_get_band(u32 h_control, u16 *pw_band)
 {
         u32 band = 0;
         u16 error = 0;
 
-        error = hpi_control_param1_get(ph_subsys, h_control, HPI_TUNER_BAND,
-                &band);
+        error = hpi_control_param1_get(h_control, HPI_TUNER_BAND, &band);
         if (pw_band)
                 *pw_band = (u16)band;
         return error;
 }
 
-u16 hpi_tuner_query_frequency(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_tuner, const u32 index, const u16 band, u32 *pfreq)
+u16 hpi_tuner_query_frequency(const u32 h_tuner, const u32 index,
+        const u16 band, u32 *pfreq)
 {
-        return hpi_control_query(ph_subsys, h_tuner, HPI_TUNER_FREQ, index,
-                band, pfreq);
+        return hpi_control_query(h_tuner, HPI_TUNER_FREQ, index, band, pfreq);
 }
 
-u16 hpi_tuner_set_frequency(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 freq_ink_hz)
+u16 hpi_tuner_set_frequency(u32 h_control, u32 freq_ink_hz)
 {
-        return hpi_control_param_set(ph_subsys, h_control, HPI_TUNER_FREQ,
-                freq_ink_hz, 0);
+        return hpi_control_param_set(h_control, HPI_TUNER_FREQ, freq_ink_hz,
+                0);
 }
 
-u16 hpi_tuner_get_frequency(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *pw_freq_ink_hz)
+u16 hpi_tuner_get_frequency(u32 h_control, u32 *pw_freq_ink_hz)
 {
-        return hpi_control_param1_get(ph_subsys, h_control, HPI_TUNER_FREQ,
+        return hpi_control_param1_get(h_control, HPI_TUNER_FREQ,
                 pw_freq_ink_hz);
 }
 
-u16 hpi_tuner_query_gain(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_tuner, const u32 index, u16 *pw_gain)
+u16 hpi_tuner_query_gain(const u32 h_tuner, const u32 index, u16 *pw_gain)
 {
         u32 qr;
         u16 err;
 
-        err = hpi_control_query(ph_subsys, h_tuner, HPI_TUNER_BAND, index, 0,
-                &qr);
+        err = hpi_control_query(h_tuner, HPI_TUNER_BAND, index, 0, &qr);
         *pw_gain = (u16)qr;
         return err;
 }
 
-u16 hpi_tuner_set_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short gain)
+u16 hpi_tuner_set_gain(u32 h_control, short gain)
 {
-        return hpi_control_param_set(ph_subsys, h_control, HPI_TUNER_GAIN,
-                gain, 0);
+        return hpi_control_param_set(h_control, HPI_TUNER_GAIN, gain, 0);
 }
 
-u16 hpi_tuner_get_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short *pn_gain)
+u16 hpi_tuner_get_gain(u32 h_control, short *pn_gain)
 {
         u32 gain = 0;
         u16 error = 0;
 
-        error = hpi_control_param1_get(ph_subsys, h_control, HPI_TUNER_GAIN,
-                &gain);
+        error = hpi_control_param1_get(h_control, HPI_TUNER_GAIN, &gain);
         if (pn_gain)
                 *pn_gain = (u16)gain;
         return error;
 }
 
-u16 hpi_tuner_getRF_level(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short *pw_level)
+u16 hpi_tuner_get_rf_level(u32 h_control, short *pw_level)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_GET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.cu.attribute = HPI_TUNER_LEVEL_AVG;
         hpi_send_recv(&hm, &hr);
         if (pw_level)
@@ -2783,15 +2699,15 @@ u16 hpi_tuner_getRF_level(const struct hpi_hsubsys *ph_subsys, u32 h_control,
         return hr.error;
 }
 
-u16 hpi_tuner_get_rawRF_level(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, short *pw_level)
+u16 hpi_tuner_get_raw_rf_level(u32 h_control, short *pw_level)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_GET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.cu.attribute = HPI_TUNER_LEVEL_RAW;
         hpi_send_recv(&hm, &hr);
         if (pw_level)
@@ -2799,70 +2715,62 @@ u16 hpi_tuner_get_rawRF_level(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_tuner_query_deemphasis(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_tuner, const u32 index, const u16 band, u32 *pdeemphasis)
+u16 hpi_tuner_query_deemphasis(const u32 h_tuner, const u32 index,
+        const u16 band, u32 *pdeemphasis)
 {
-        return hpi_control_query(ph_subsys, h_tuner, HPI_TUNER_DEEMPHASIS,
-                index, band, pdeemphasis);
+        return hpi_control_query(h_tuner, HPI_TUNER_DEEMPHASIS, index, band,
+                pdeemphasis);
 }
 
-u16 hpi_tuner_set_deemphasis(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 deemphasis)
+u16 hpi_tuner_set_deemphasis(u32 h_control, u32 deemphasis)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_TUNER_DEEMPHASIS, deemphasis, 0);
+        return hpi_control_param_set(h_control, HPI_TUNER_DEEMPHASIS,
+                deemphasis, 0);
 }
 
-u16 hpi_tuner_get_deemphasis(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *pdeemphasis)
+u16 hpi_tuner_get_deemphasis(u32 h_control, u32 *pdeemphasis)
 {
-        return hpi_control_param1_get(ph_subsys, h_control,
-                HPI_TUNER_DEEMPHASIS, pdeemphasis);
+        return hpi_control_param1_get(h_control, HPI_TUNER_DEEMPHASIS,
+                pdeemphasis);
 }
 
-u16 hpi_tuner_query_program(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_tuner, u32 *pbitmap_program)
+u16 hpi_tuner_query_program(const u32 h_tuner, u32 *pbitmap_program)
 {
-        return hpi_control_query(ph_subsys, h_tuner, HPI_TUNER_PROGRAM, 0, 0,
+        return hpi_control_query(h_tuner, HPI_TUNER_PROGRAM, 0, 0,
                 pbitmap_program);
 }
 
-u16 hpi_tuner_set_program(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u32 program)
+u16 hpi_tuner_set_program(u32 h_control, u32 program)
 {
-        return hpi_control_param_set(ph_subsys, h_control, HPI_TUNER_PROGRAM,
-                program, 0);
+        return hpi_control_param_set(h_control, HPI_TUNER_PROGRAM, program,
+                0);
 }
 
-u16 hpi_tuner_get_program(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u32 *pprogram)
+u16 hpi_tuner_get_program(u32 h_control, u32 *pprogram)
 {
-        return hpi_control_param1_get(ph_subsys, h_control, HPI_TUNER_PROGRAM,
-                pprogram);
+        return hpi_control_param1_get(h_control, HPI_TUNER_PROGRAM, pprogram);
 }
 
-u16 hpi_tuner_get_hd_radio_dsp_version(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, char *psz_dsp_version, const u32 string_size)
+u16 hpi_tuner_get_hd_radio_dsp_version(u32 h_control, char *psz_dsp_version,
+        const u32 string_size)
 {
         return hpi_control_get_string(h_control,
                 HPI_TUNER_HDRADIO_DSP_VERSION, psz_dsp_version, string_size);
 }
 
-u16 hpi_tuner_get_hd_radio_sdk_version(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, char *psz_sdk_version, const u32 string_size)
+u16 hpi_tuner_get_hd_radio_sdk_version(u32 h_control, char *psz_sdk_version,
+        const u32 string_size)
 {
         return hpi_control_get_string(h_control,
                 HPI_TUNER_HDRADIO_SDK_VERSION, psz_sdk_version, string_size);
 }
 
-u16 hpi_tuner_get_status(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u16 *pw_status_mask, u16 *pw_status)
+u16 hpi_tuner_get_status(u32 h_control, u16 *pw_status_mask, u16 *pw_status)
 {
         u32 status = 0;
         u16 error = 0;
 
-        error = hpi_control_param1_get(ph_subsys, h_control, HPI_TUNER_STATUS,
-                &status);
+        error = hpi_control_param1_get(h_control, HPI_TUNER_STATUS, &status);
         if (pw_status) {
                 if (!error) {
                         *pw_status_mask = (u16)(status >> 16);
@@ -2875,50 +2783,44 @@ u16 hpi_tuner_get_status(const struct hpi_hsubsys *ph_subsys, u32 h_control,
         return error;
 }
 
-u16 hpi_tuner_set_mode(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u32 mode, u32 value)
+u16 hpi_tuner_set_mode(u32 h_control, u32 mode, u32 value)
 {
-        return hpi_control_param_set(ph_subsys, h_control, HPI_TUNER_MODE,
-                mode, value);
+        return hpi_control_param_set(h_control, HPI_TUNER_MODE, mode, value);
 }
 
-u16 hpi_tuner_get_mode(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u32 mode, u32 *pn_value)
+u16 hpi_tuner_get_mode(u32 h_control, u32 mode, u32 *pn_value)
 {
-        return hpi_control_param_get(ph_subsys, h_control, HPI_TUNER_MODE,
-                mode, 0, pn_value, NULL);
+        return hpi_control_param_get(h_control, HPI_TUNER_MODE, mode, 0,
+                pn_value, NULL);
 }
 
-u16 hpi_tuner_get_hd_radio_signal_quality(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *pquality)
+u16 hpi_tuner_get_hd_radio_signal_quality(u32 h_control, u32 *pquality)
 {
-        return hpi_control_param1_get(ph_subsys, h_control,
+        return hpi_control_param1_get(h_control,
                 HPI_TUNER_HDRADIO_SIGNAL_QUALITY, pquality);
 }
 
-u16 hpi_tuner_get_hd_radio_signal_blend(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *pblend)
+u16 hpi_tuner_get_hd_radio_signal_blend(u32 h_control, u32 *pblend)
 {
-        return hpi_control_param1_get(ph_subsys, h_control,
-                HPI_TUNER_HDRADIO_BLEND, pblend);
+        return hpi_control_param1_get(h_control, HPI_TUNER_HDRADIO_BLEND,
+                pblend);
 }
 
-u16 hpi_tuner_set_hd_radio_signal_blend(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, const u32 blend)
+u16 hpi_tuner_set_hd_radio_signal_blend(u32 h_control, const u32 blend)
 {
-        return hpi_control_param_set(ph_subsys, h_control,
-                HPI_TUNER_HDRADIO_BLEND, blend, 0);
+        return hpi_control_param_set(h_control, HPI_TUNER_HDRADIO_BLEND,
+                blend, 0);
 }
 
-u16 hpi_tuner_getRDS(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        char *p_data)
+u16 hpi_tuner_get_rds(u32 h_control, char *p_data)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_GET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.c.attribute = HPI_TUNER_RDS;
         hpi_send_recv(&hm, &hr);
         if (p_data) {
@@ -2929,80 +2831,72 @@ u16 hpi_tuner_getRDS(const struct hpi_hsubsys *ph_subsys, u32 h_control,
         return hr.error;
 }
 
-u16 HPI_PAD__get_channel_name(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, char *psz_string, const u32 data_length)
+u16 hpi_pad_get_channel_name(u32 h_control, char *psz_string,
+        const u32 data_length)
 {
         return hpi_control_get_string(h_control, HPI_PAD_CHANNEL_NAME,
                 psz_string, data_length);
 }
 
-u16 HPI_PAD__get_artist(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        char *psz_string, const u32 data_length)
+u16 hpi_pad_get_artist(u32 h_control, char *psz_string, const u32 data_length)
 {
         return hpi_control_get_string(h_control, HPI_PAD_ARTIST, psz_string,
                 data_length);
 }
 
-u16 HPI_PAD__get_title(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        char *psz_string, const u32 data_length)
+u16 hpi_pad_get_title(u32 h_control, char *psz_string, const u32 data_length)
 {
         return hpi_control_get_string(h_control, HPI_PAD_TITLE, psz_string,
                 data_length);
 }
 
-u16 HPI_PAD__get_comment(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        char *psz_string, const u32 data_length)
+u16 hpi_pad_get_comment(u32 h_control, char *psz_string,
+        const u32 data_length)
 {
         return hpi_control_get_string(h_control, HPI_PAD_COMMENT, psz_string,
                 data_length);
 }
 
-u16 HPI_PAD__get_program_type(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, u32 *ppTY)
+u16 hpi_pad_get_program_type(u32 h_control, u32 *ppTY)
 {
-        return hpi_control_param1_get(ph_subsys, h_control,
-                HPI_PAD_PROGRAM_TYPE, ppTY);
+        return hpi_control_param1_get(h_control, HPI_PAD_PROGRAM_TYPE, ppTY);
 }
 
-u16 HPI_PAD__get_rdsPI(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        u32 *ppI)
+u16 hpi_pad_get_rdsPI(u32 h_control, u32 *ppI)
 {
-        return hpi_control_param1_get(ph_subsys, h_control,
-                HPI_PAD_PROGRAM_ID, ppI);
+        return hpi_control_param1_get(h_control, HPI_PAD_PROGRAM_ID, ppI);
 }
 
-u16 hpi_volume_query_channels(const struct hpi_hsubsys *ph_subsys,
-        const u32 h_volume, u32 *p_channels)
+u16 hpi_volume_query_channels(const u32 h_volume, u32 *p_channels)
 {
-        return hpi_control_query(ph_subsys, h_volume, HPI_VOLUME_NUM_CHANNELS,
-                0, 0, p_channels);
+        return hpi_control_query(h_volume, HPI_VOLUME_NUM_CHANNELS, 0, 0,
+                p_channels);
 }
 
-u16 hpi_volume_set_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short an_log_gain[HPI_MAX_CHANNELS]
+u16 hpi_volume_set_gain(u32 h_control, short an_log_gain[HPI_MAX_CHANNELS]
         )
 {
         return hpi_control_log_set2(h_control, HPI_VOLUME_GAIN,
                 an_log_gain[0], an_log_gain[1]);
 }
 
-u16 hpi_volume_get_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short an_log_gain[HPI_MAX_CHANNELS]
+u16 hpi_volume_get_gain(u32 h_control, short an_log_gain[HPI_MAX_CHANNELS]
         )
 {
-        return hpi_control_log_get2(ph_subsys, h_control, HPI_VOLUME_GAIN,
+        return hpi_control_log_get2(h_control, HPI_VOLUME_GAIN,
                 &an_log_gain[0], &an_log_gain[1]);
 }
 
-u16 hpi_volume_query_range(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short *min_gain_01dB, short *max_gain_01dB, short *step_gain_01dB)
+u16 hpi_volume_query_range(u32 h_control, short *min_gain_01dB,
+        short *max_gain_01dB, short *step_gain_01dB)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_GET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.c.attribute = HPI_VOLUME_RANGE;
 
         hpi_send_recv(&hm, &hr);
@@ -3020,16 +2914,17 @@ u16 hpi_volume_query_range(const struct hpi_hsubsys *ph_subsys, u32 h_control,
         return hr.error;
 }
 
-u16 hpi_volume_auto_fade_profile(const struct hpi_hsubsys *ph_subsys,
-        u32 h_control, short an_stop_gain0_01dB[HPI_MAX_CHANNELS],
-        u32 duration_ms, u16 profile)
+u16 hpi_volume_auto_fade_profile(u32 h_control,
+        short an_stop_gain0_01dB[HPI_MAX_CHANNELS], u32 duration_ms,
+        u16 profile)
 {
         struct hpi_message hm;
         struct hpi_response hr;
 
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_SET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
 
         memcpy(hm.u.c.an_log_value, an_stop_gain0_01dB,
                 sizeof(short) * HPI_MAX_CHANNELS);
@@ -3043,21 +2938,21 @@ u16 hpi_volume_auto_fade_profile(const struct hpi_hsubsys *ph_subsys,
         return hr.error;
 }
 
-u16 hpi_volume_auto_fade(const struct hpi_hsubsys *ph_subsys, u32 h_control,
+u16 hpi_volume_auto_fade(u32 h_control,
         short an_stop_gain0_01dB[HPI_MAX_CHANNELS], u32 duration_ms)
 {
-        return hpi_volume_auto_fade_profile(ph_subsys, h_control,
-                an_stop_gain0_01dB, duration_ms, HPI_VOLUME_AUTOFADE_LOG);
+        return hpi_volume_auto_fade_profile(h_control, an_stop_gain0_01dB,
+                duration_ms, HPI_VOLUME_AUTOFADE_LOG);
 }
 
-u16 hpi_vox_set_threshold(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short an_gain0_01dB)
+u16 hpi_vox_set_threshold(u32 h_control, short an_gain0_01dB)
 {
         struct hpi_message hm;
         struct hpi_response hr;
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_SET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.c.attribute = HPI_VOX_THRESHOLD;
 
         hm.u.c.an_log_value[0] = an_gain0_01dB;
@@ -3067,14 +2962,14 @@ u16 hpi_vox_set_threshold(const struct hpi_hsubsys *ph_subsys, u32 h_control,
         return hr.error;
 }
 
-u16 hpi_vox_get_threshold(const struct hpi_hsubsys *ph_subsys, u32 h_control,
-        short *an_gain0_01dB)
+u16 hpi_vox_get_threshold(u32 h_control, short *an_gain0_01dB)
 {
         struct hpi_message hm;
         struct hpi_response hr;
         hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL,
                 HPI_CONTROL_GET_STATE);
-        u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index);
+        if (hpi_handle_indexes(h_control, &hm.adapter_index, &hm.obj_index))
+                return HPI_ERROR_INVALID_HANDLE;
         hm.u.c.attribute = HPI_VOX_THRESHOLD;
 
         hpi_send_recv(&hm, &hr);
diff --git a/sound/pci/asihpi/hpioctl.c b/sound/pci/asihpi/hpioctl.c
index dd8cadf1e686..4bd32782ad9d 100644
--- a/sound/pci/asihpi/hpioctl.c
+++ b/sound/pci/asihpi/hpioctl.c
@@ -392,7 +392,7 @@ int __devinit asihpi_adapter_probe(struct pci_dev *pci_dev,
         adapter.type = hr.u.s.aw_adapter_list[adapter.index];
         hm.adapter_index = adapter.index;
 
-        err = hpi_adapter_open(NULL, adapter.index);
+        err = hpi_adapter_open(adapter.index);
         if (err)
                 goto err;