[ALSA] Remove bogus check of mmap_count in snd_pcm_release()
[pandora-kernel.git] / sound / core / pcm_lib.c
index 3dbf9bf..0bb142a 100644 (file)
@@ -39,9 +39,9 @@
  *
  * when runtime->silence_size >= runtime->boundary - fill processed area with silence immediately
  */
-void snd_pcm_playback_silence(snd_pcm_substream_t *substream, snd_pcm_uframes_t new_hw_ptr)
+void snd_pcm_playback_silence(struct snd_pcm_substream *substream, snd_pcm_uframes_t new_hw_ptr)
 {
-       snd_pcm_runtime_t *runtime = substream->runtime;
+       struct snd_pcm_runtime *runtime = substream->runtime;
        snd_pcm_uframes_t frames, ofs, transfer;
 
        if (runtime->silence_size < runtime->boundary) {
@@ -56,9 +56,8 @@ void snd_pcm_playback_silence(snd_pcm_substream_t *substream, snd_pcm_uframes_t
                                runtime->silence_filled = 0;
                        runtime->silence_start = runtime->control->appl_ptr;
                }
-               if (runtime->silence_filled == runtime->buffer_size)
+               if (runtime->silence_filled >= runtime->buffer_size)
                        return;
-               snd_assert(runtime->silence_filled <= runtime->buffer_size, return);
                noise_dist = snd_pcm_playback_hw_avail(runtime) + runtime->silence_filled;
                if (noise_dist >= (snd_pcm_sframes_t) runtime->silence_threshold)
                        return;
@@ -128,10 +127,10 @@ void snd_pcm_playback_silence(snd_pcm_substream_t *substream, snd_pcm_uframes_t
        }
 }
 
-static void xrun(snd_pcm_substream_t *substream)
+static void xrun(struct snd_pcm_substream *substream)
 {
        snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
-#ifdef CONFIG_SND_DEBUG
+#ifdef CONFIG_SND_PCM_XRUN_DEBUG
        if (substream->pstr->xrun_debug) {
                snd_printd(KERN_DEBUG "XRUN: pcmC%dD%d%c\n",
                           substream->pcm->card->number,
@@ -143,8 +142,8 @@ static void xrun(snd_pcm_substream_t *substream)
 #endif
 }
 
-static inline snd_pcm_uframes_t snd_pcm_update_hw_ptr_pos(snd_pcm_substream_t *substream,
-                                                         snd_pcm_runtime_t *runtime)
+static inline snd_pcm_uframes_t snd_pcm_update_hw_ptr_pos(struct snd_pcm_substream *substream,
+                                                         struct snd_pcm_runtime *runtime)
 {
        snd_pcm_uframes_t pos;
 
@@ -162,8 +161,8 @@ static inline snd_pcm_uframes_t snd_pcm_update_hw_ptr_pos(snd_pcm_substream_t *s
        return pos;
 }
 
-static inline int snd_pcm_update_hw_ptr_post(snd_pcm_substream_t *substream,
-                                            snd_pcm_runtime_t *runtime)
+static inline int snd_pcm_update_hw_ptr_post(struct snd_pcm_substream *substream,
+                                            struct snd_pcm_runtime *runtime)
 {
        snd_pcm_uframes_t avail;
 
@@ -185,9 +184,9 @@ static inline int snd_pcm_update_hw_ptr_post(snd_pcm_substream_t *substream,
        return 0;
 }
 
-static inline int snd_pcm_update_hw_ptr_interrupt(snd_pcm_substream_t *substream)
+static inline int snd_pcm_update_hw_ptr_interrupt(struct snd_pcm_substream *substream)
 {
-       snd_pcm_runtime_t *runtime = substream->runtime;
+       struct snd_pcm_runtime *runtime = substream->runtime;
        snd_pcm_uframes_t pos;
        snd_pcm_uframes_t new_hw_ptr, hw_ptr_interrupt;
        snd_pcm_sframes_t delta;
@@ -205,7 +204,7 @@ static inline int snd_pcm_update_hw_ptr_interrupt(snd_pcm_substream_t *substream
        delta = hw_ptr_interrupt - new_hw_ptr;
        if (delta > 0) {
                if ((snd_pcm_uframes_t)delta < runtime->buffer_size / 2) {
-#ifdef CONFIG_SND_DEBUG
+#ifdef CONFIG_SND_PCM_XRUN_DEBUG
                        if (runtime->periods > 1 && substream->pstr->xrun_debug) {
                                snd_printd(KERN_ERR "Unexpected hw_pointer value [1] (stream = %i, delta: -%ld, max jitter = %ld): wrong interrupt acknowledge?\n", substream->stream, (long) delta, runtime->buffer_size / 2);
                                if (substream->pstr->xrun_debug > 1)
@@ -232,9 +231,9 @@ static inline int snd_pcm_update_hw_ptr_interrupt(snd_pcm_substream_t *substream
 }
 
 /* CAUTION: call it with irq disabled */
-int snd_pcm_update_hw_ptr(snd_pcm_substream_t *substream)
+int snd_pcm_update_hw_ptr(struct snd_pcm_substream *substream)
 {
-       snd_pcm_runtime_t *runtime = substream->runtime;
+       struct snd_pcm_runtime *runtime = substream->runtime;
        snd_pcm_uframes_t pos;
        snd_pcm_uframes_t old_hw_ptr, new_hw_ptr;
        snd_pcm_sframes_t delta;
@@ -250,7 +249,7 @@ int snd_pcm_update_hw_ptr(snd_pcm_substream_t *substream)
        delta = old_hw_ptr - new_hw_ptr;
        if (delta > 0) {
                if ((snd_pcm_uframes_t)delta < runtime->buffer_size / 2) {
-#ifdef CONFIG_SND_DEBUG
+#ifdef CONFIG_SND_PCM_XRUN_DEBUG
                        if (runtime->periods > 2 && substream->pstr->xrun_debug) {
                                snd_printd(KERN_ERR "Unexpected hw_pointer value [2] (stream = %i, delta: -%ld, max jitter = %ld): wrong interrupt acknowledge?\n", substream->stream, (long) delta, runtime->buffer_size / 2);
                                if (substream->pstr->xrun_debug > 1)
@@ -281,15 +280,16 @@ int snd_pcm_update_hw_ptr(snd_pcm_substream_t *substream)
  *
  * Sets the given PCM operators to the pcm instance.
  */
-void snd_pcm_set_ops(snd_pcm_t *pcm, int direction, snd_pcm_ops_t *ops)
+void snd_pcm_set_ops(struct snd_pcm *pcm, int direction, struct snd_pcm_ops *ops)
 {
-       snd_pcm_str_t *stream = &pcm->streams[direction];
-       snd_pcm_substream_t *substream;
+       struct snd_pcm_str *stream = &pcm->streams[direction];
+       struct snd_pcm_substream *substream;
        
        for (substream = stream->substream; substream != NULL; substream = substream->next)
                substream->ops = ops;
 }
 
+EXPORT_SYMBOL(snd_pcm_set_ops);
 
 /**
  * snd_pcm_sync - set the PCM sync id
@@ -297,9 +297,9 @@ void snd_pcm_set_ops(snd_pcm_t *pcm, int direction, snd_pcm_ops_t *ops)
  *
  * Sets the PCM sync identifier for the card.
  */
-void snd_pcm_set_sync(snd_pcm_substream_t * substream)
+void snd_pcm_set_sync(struct snd_pcm_substream *substream)
 {
-       snd_pcm_runtime_t *runtime = substream->runtime;
+       struct snd_pcm_runtime *runtime = substream->runtime;
        
        runtime->sync.id32[0] = substream->pcm->card->number;
        runtime->sync.id32[1] = -1;
@@ -307,13 +307,12 @@ void snd_pcm_set_sync(snd_pcm_substream_t * substream)
        runtime->sync.id32[3] = -1;
 }
 
+EXPORT_SYMBOL(snd_pcm_set_sync);
+
 /*
  *  Standard ioctl routine
  */
 
-/* Code taken from alsa-lib */
-#define assert(a) snd_assert((a), return -EINVAL)
-
 static inline unsigned int div32(unsigned int a, unsigned int b, 
                                 unsigned int *r)
 {
@@ -370,56 +369,6 @@ static inline unsigned int muldiv32(unsigned int a, unsigned int b,
        return n;
 }
 
-static int snd_interval_refine_min(snd_interval_t *i, unsigned int min, int openmin)
-{
-       int changed = 0;
-       assert(!snd_interval_empty(i));
-       if (i->min < min) {
-               i->min = min;
-               i->openmin = openmin;
-               changed = 1;
-       } else if (i->min == min && !i->openmin && openmin) {
-               i->openmin = 1;
-               changed = 1;
-       }
-       if (i->integer) {
-               if (i->openmin) {
-                       i->min++;
-                       i->openmin = 0;
-               }
-       }
-       if (snd_interval_checkempty(i)) {
-               snd_interval_none(i);
-               return -EINVAL;
-       }
-       return changed;
-}
-
-static int snd_interval_refine_max(snd_interval_t *i, unsigned int max, int openmax)
-{
-       int changed = 0;
-       assert(!snd_interval_empty(i));
-       if (i->max > max) {
-               i->max = max;
-               i->openmax = openmax;
-               changed = 1;
-       } else if (i->max == max && !i->openmax && openmax) {
-               i->openmax = 1;
-               changed = 1;
-       }
-       if (i->integer) {
-               if (i->openmax) {
-                       i->max--;
-                       i->openmax = 0;
-               }
-       }
-       if (snd_interval_checkempty(i)) {
-               snd_interval_none(i);
-               return -EINVAL;
-       }
-       return changed;
-}
-
 /**
  * snd_interval_refine - refine the interval value of configurator
  * @i: the interval value to refine
@@ -431,10 +380,10 @@ static int snd_interval_refine_max(snd_interval_t *i, unsigned int max, int open
  *
  * Returns non-zero if the value is changed, zero if not changed.
  */
-int snd_interval_refine(snd_interval_t *i, const snd_interval_t *v)
+int snd_interval_refine(struct snd_interval *i, const struct snd_interval *v)
 {
        int changed = 0;
-       assert(!snd_interval_empty(i));
+       snd_assert(!snd_interval_empty(i), return -EINVAL);
        if (i->min < v->min) {
                i->min = v->min;
                i->openmin = v->openmin;
@@ -473,9 +422,11 @@ int snd_interval_refine(snd_interval_t *i, const snd_interval_t *v)
        return changed;
 }
 
-static int snd_interval_refine_first(snd_interval_t *i)
+EXPORT_SYMBOL(snd_interval_refine);
+
+static int snd_interval_refine_first(struct snd_interval *i)
 {
-       assert(!snd_interval_empty(i));
+       snd_assert(!snd_interval_empty(i), return -EINVAL);
        if (snd_interval_single(i))
                return 0;
        i->max = i->min;
@@ -485,9 +436,9 @@ static int snd_interval_refine_first(snd_interval_t *i)
        return 1;
 }
 
-static int snd_interval_refine_last(snd_interval_t *i)
+static int snd_interval_refine_last(struct snd_interval *i)
 {
-       assert(!snd_interval_empty(i));
+       snd_assert(!snd_interval_empty(i), return -EINVAL);
        if (snd_interval_single(i))
                return 0;
        i->min = i->max;
@@ -497,17 +448,7 @@ static int snd_interval_refine_last(snd_interval_t *i)
        return 1;
 }
 
-static int snd_interval_refine_set(snd_interval_t *i, unsigned int val)
-{
-       snd_interval_t t;
-       t.empty = 0;
-       t.min = t.max = val;
-       t.openmin = t.openmax = 0;
-       t.integer = 1;
-       return snd_interval_refine(i, &t);
-}
-
-void snd_interval_mul(const snd_interval_t *a, const snd_interval_t *b, snd_interval_t *c)
+void snd_interval_mul(const struct snd_interval *a, const struct snd_interval *b, struct snd_interval *c)
 {
        if (a->empty || b->empty) {
                snd_interval_none(c);
@@ -531,7 +472,7 @@ void snd_interval_mul(const snd_interval_t *a, const snd_interval_t *b, snd_inte
  *
  * Returns non-zero if the value is changed, zero if not changed.
  */
-void snd_interval_div(const snd_interval_t *a, const snd_interval_t *b, snd_interval_t *c)
+void snd_interval_div(const struct snd_interval *a, const struct snd_interval *b, struct snd_interval *c)
 {
        unsigned int r;
        if (a->empty || b->empty) {
@@ -566,8 +507,8 @@ void snd_interval_div(const snd_interval_t *a, const snd_interval_t *b, snd_inte
  *
  * Returns non-zero if the value is changed, zero if not changed.
  */
-void snd_interval_muldivk(const snd_interval_t *a, const snd_interval_t *b,
-                     unsigned int k, snd_interval_t *c)
+void snd_interval_muldivk(const struct snd_interval *a, const struct snd_interval *b,
+                     unsigned int k, struct snd_interval *c)
 {
        unsigned int r;
        if (a->empty || b->empty) {
@@ -597,8 +538,8 @@ void snd_interval_muldivk(const snd_interval_t *a, const snd_interval_t *b,
  *
  * Returns non-zero if the value is changed, zero if not changed.
  */
-void snd_interval_mulkdiv(const snd_interval_t *a, unsigned int k,
-                     const snd_interval_t *b, snd_interval_t *c)
+void snd_interval_mulkdiv(const struct snd_interval *a, unsigned int k,
+                     const struct snd_interval *b, struct snd_interval *c)
 {
        unsigned int r;
        if (a->empty || b->empty) {
@@ -622,7 +563,6 @@ void snd_interval_mulkdiv(const snd_interval_t *a, unsigned int k,
        c->integer = 0;
 }
 
-#undef assert
 /* ---- */
 
 
@@ -636,13 +576,13 @@ void snd_interval_mulkdiv(const snd_interval_t *a, unsigned int k,
  *
  * Returns non-zero if the value is changed, zero if not changed.
  */
-int snd_interval_ratnum(snd_interval_t *i,
-                   unsigned int rats_count, ratnum_t *rats,
-                   unsigned int *nump, unsigned int *denp)
+int snd_interval_ratnum(struct snd_interval *i,
+                       unsigned int rats_count, struct snd_ratnum *rats,
+                       unsigned int *nump, unsigned int *denp)
 {
        unsigned int best_num, best_diff, best_den;
        unsigned int k;
-       snd_interval_t t;
+       struct snd_interval t;
        int err;
 
        best_num = best_den = best_diff = 0;
@@ -728,23 +668,25 @@ int snd_interval_ratnum(snd_interval_t *i,
        return err;
 }
 
+EXPORT_SYMBOL(snd_interval_ratnum);
+
 /**
  * snd_interval_ratden - refine the interval value
  * @i: interval to refine
- * @rats_count: number of ratden_t
- * @rats: ratden_t array
+ * @rats_count: number of struct ratden
+ * @rats: struct ratden array
  * @nump: pointer to store the resultant numerator
  * @denp: pointer to store the resultant denominator
  *
  * Returns non-zero if the value is changed, zero if not changed.
  */
-static int snd_interval_ratden(snd_interval_t *i,
-                              unsigned int rats_count, ratden_t *rats,
+static int snd_interval_ratden(struct snd_interval *i,
+                              unsigned int rats_count, struct snd_ratden *rats,
                               unsigned int *nump, unsigned int *denp)
 {
        unsigned int best_num, best_diff, best_den;
        unsigned int k;
-       snd_interval_t t;
+       struct snd_interval t;
        int err;
 
        best_num = best_den = best_diff = 0;
@@ -837,7 +779,7 @@ static int snd_interval_ratden(snd_interval_t *i,
  *
  * Returns non-zero if the value is changed, zero if not changed.
  */
-int snd_interval_list(snd_interval_t *i, unsigned int count, unsigned int *list, unsigned int mask)
+int snd_interval_list(struct snd_interval *i, unsigned int count, unsigned int *list, unsigned int mask)
 {
         unsigned int k;
        int changed = 0;
@@ -878,7 +820,9 @@ int snd_interval_list(snd_interval_t *i, unsigned int count, unsigned int *list,
         return changed;
 }
 
-static int snd_interval_step(snd_interval_t *i, unsigned int min, unsigned int step)
+EXPORT_SYMBOL(snd_interval_list);
+
+static int snd_interval_step(struct snd_interval *i, unsigned int min, unsigned int step)
 {
        unsigned int n;
        int changed = 0;
@@ -912,18 +856,18 @@ static int snd_interval_step(snd_interval_t *i, unsigned int min, unsigned int s
  *
  * Returns zero if successful, or a negative error code on failure.
  */
-int snd_pcm_hw_rule_add(snd_pcm_runtime_t *runtime, unsigned int cond,
+int snd_pcm_hw_rule_add(struct snd_pcm_runtime *runtime, unsigned int cond,
                        int var,
                        snd_pcm_hw_rule_func_t func, void *private,
                        int dep, ...)
 {
-       snd_pcm_hw_constraints_t *constrs = &runtime->hw_constraints;
-       snd_pcm_hw_rule_t *c;
+       struct snd_pcm_hw_constraints *constrs = &runtime->hw_constraints;
+       struct snd_pcm_hw_rule *c;
        unsigned int k;
        va_list args;
        va_start(args, dep);
        if (constrs->rules_num >= constrs->rules_all) {
-               snd_pcm_hw_rule_t *new;
+               struct snd_pcm_hw_rule *new;
                unsigned int new_rules = constrs->rules_all + 16;
                new = kcalloc(new_rules, sizeof(*c), GFP_KERNEL);
                if (!new)
@@ -954,6 +898,8 @@ int snd_pcm_hw_rule_add(snd_pcm_runtime_t *runtime, unsigned int cond,
        return 0;
 }                                  
 
+EXPORT_SYMBOL(snd_pcm_hw_rule_add);
+
 /**
  * snd_pcm_hw_constraint_mask
  * @runtime: PCM runtime instance
@@ -962,11 +908,11 @@ int snd_pcm_hw_rule_add(snd_pcm_runtime_t *runtime, unsigned int cond,
  *
  * Apply the constraint of the given bitmap mask to a mask parameter.
  */
-int snd_pcm_hw_constraint_mask(snd_pcm_runtime_t *runtime, snd_pcm_hw_param_t var,
+int snd_pcm_hw_constraint_mask(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var,
                               u_int32_t mask)
 {
-       snd_pcm_hw_constraints_t *constrs = &runtime->hw_constraints;
-       snd_mask_t *maskp = constrs_mask(constrs, var);
+       struct snd_pcm_hw_constraints *constrs = &runtime->hw_constraints;
+       struct snd_mask *maskp = constrs_mask(constrs, var);
        *maskp->bits &= mask;
        memset(maskp->bits + 1, 0, (SNDRV_MASK_MAX-32) / 8); /* clear rest */
        if (*maskp->bits == 0)
@@ -982,11 +928,11 @@ int snd_pcm_hw_constraint_mask(snd_pcm_runtime_t *runtime, snd_pcm_hw_param_t va
  *
  * Apply the constraint of the given bitmap mask to a mask parameter.
  */
-int snd_pcm_hw_constraint_mask64(snd_pcm_runtime_t *runtime, snd_pcm_hw_param_t var,
+int snd_pcm_hw_constraint_mask64(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var,
                                 u_int64_t mask)
 {
-       snd_pcm_hw_constraints_t *constrs = &runtime->hw_constraints;
-       snd_mask_t *maskp = constrs_mask(constrs, var);
+       struct snd_pcm_hw_constraints *constrs = &runtime->hw_constraints;
+       struct snd_mask *maskp = constrs_mask(constrs, var);
        maskp->bits[0] &= (u_int32_t)mask;
        maskp->bits[1] &= (u_int32_t)(mask >> 32);
        memset(maskp->bits + 2, 0, (SNDRV_MASK_MAX-64) / 8); /* clear rest */
@@ -1002,12 +948,14 @@ int snd_pcm_hw_constraint_mask64(snd_pcm_runtime_t *runtime, snd_pcm_hw_param_t
  *
  * Apply the constraint of integer to an interval parameter.
  */
-int snd_pcm_hw_constraint_integer(snd_pcm_runtime_t *runtime, snd_pcm_hw_param_t var)
+int snd_pcm_hw_constraint_integer(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var)
 {
-       snd_pcm_hw_constraints_t *constrs = &runtime->hw_constraints;
+       struct snd_pcm_hw_constraints *constrs = &runtime->hw_constraints;
        return snd_interval_setinteger(constrs_interval(constrs, var));
 }
 
+EXPORT_SYMBOL(snd_pcm_hw_constraint_integer);
+
 /**
  * snd_pcm_hw_constraint_minmax
  * @runtime: PCM runtime instance
@@ -1017,11 +965,11 @@ int snd_pcm_hw_constraint_integer(snd_pcm_runtime_t *runtime, snd_pcm_hw_param_t
  * 
  * Apply the min/max range constraint to an interval parameter.
  */
-int snd_pcm_hw_constraint_minmax(snd_pcm_runtime_t *runtime, snd_pcm_hw_param_t var,
+int snd_pcm_hw_constraint_minmax(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var,
                                 unsigned int min, unsigned int max)
 {
-       snd_pcm_hw_constraints_t *constrs = &runtime->hw_constraints;
-       snd_interval_t t;
+       struct snd_pcm_hw_constraints *constrs = &runtime->hw_constraints;
+       struct snd_interval t;
        t.min = min;
        t.max = max;
        t.openmin = t.openmax = 0;
@@ -1029,10 +977,12 @@ int snd_pcm_hw_constraint_minmax(snd_pcm_runtime_t *runtime, snd_pcm_hw_param_t
        return snd_interval_refine(constrs_interval(constrs, var), &t);
 }
 
-static int snd_pcm_hw_rule_list(snd_pcm_hw_params_t *params,
-                               snd_pcm_hw_rule_t *rule)
+EXPORT_SYMBOL(snd_pcm_hw_constraint_minmax);
+
+static int snd_pcm_hw_rule_list(struct snd_pcm_hw_params *params,
+                               struct snd_pcm_hw_rule *rule)
 {
-       snd_pcm_hw_constraint_list_t *list = rule->private;
+       struct snd_pcm_hw_constraint_list *list = rule->private;
        return snd_interval_list(hw_param_interval(params, rule->var), list->count, list->list, list->mask);
 }              
 
@@ -1046,20 +996,22 @@ static int snd_pcm_hw_rule_list(snd_pcm_hw_params_t *params,
  * 
  * Apply the list of constraints to an interval parameter.
  */
-int snd_pcm_hw_constraint_list(snd_pcm_runtime_t *runtime,
+int snd_pcm_hw_constraint_list(struct snd_pcm_runtime *runtime,
                               unsigned int cond,
                               snd_pcm_hw_param_t var,
-                              snd_pcm_hw_constraint_list_t *l)
+                              struct snd_pcm_hw_constraint_list *l)
 {
        return snd_pcm_hw_rule_add(runtime, cond, var,
                                   snd_pcm_hw_rule_list, l,
                                   var, -1);
 }
 
-static int snd_pcm_hw_rule_ratnums(snd_pcm_hw_params_t *params,
-                                  snd_pcm_hw_rule_t *rule)
+EXPORT_SYMBOL(snd_pcm_hw_constraint_list);
+
+static int snd_pcm_hw_rule_ratnums(struct snd_pcm_hw_params *params,
+                                  struct snd_pcm_hw_rule *rule)
 {
-       snd_pcm_hw_constraint_ratnums_t *r = rule->private;
+       struct snd_pcm_hw_constraint_ratnums *r = rule->private;
        unsigned int num = 0, den = 0;
        int err;
        err = snd_interval_ratnum(hw_param_interval(params, rule->var),
@@ -1076,22 +1028,24 @@ static int snd_pcm_hw_rule_ratnums(snd_pcm_hw_params_t *params,
  * @runtime: PCM runtime instance
  * @cond: condition bits
  * @var: hw_params variable to apply the ratnums constraint
- * @r: ratnums_t constriants
+ * @r: struct snd_ratnums constriants
  */
-int snd_pcm_hw_constraint_ratnums(snd_pcm_runtime_t *runtime, 
+int snd_pcm_hw_constraint_ratnums(struct snd_pcm_runtime *runtime, 
                                  unsigned int cond,
                                  snd_pcm_hw_param_t var,
-                                 snd_pcm_hw_constraint_ratnums_t *r)
+                                 struct snd_pcm_hw_constraint_ratnums *r)
 {
        return snd_pcm_hw_rule_add(runtime, cond, var,
                                   snd_pcm_hw_rule_ratnums, r,
                                   var, -1);
 }
 
-static int snd_pcm_hw_rule_ratdens(snd_pcm_hw_params_t *params,
-                                  snd_pcm_hw_rule_t *rule)
+EXPORT_SYMBOL(snd_pcm_hw_constraint_ratnums);
+
+static int snd_pcm_hw_rule_ratdens(struct snd_pcm_hw_params *params,
+                                  struct snd_pcm_hw_rule *rule)
 {
-       snd_pcm_hw_constraint_ratdens_t *r = rule->private;
+       struct snd_pcm_hw_constraint_ratdens *r = rule->private;
        unsigned int num = 0, den = 0;
        int err = snd_interval_ratden(hw_param_interval(params, rule->var),
                                  r->nrats, r->rats, &num, &den);
@@ -1107,25 +1061,27 @@ static int snd_pcm_hw_rule_ratdens(snd_pcm_hw_params_t *params,
  * @runtime: PCM runtime instance
  * @cond: condition bits
  * @var: hw_params variable to apply the ratdens constraint
- * @r: ratdens_t constriants
+ * @r: struct snd_ratdens constriants
  */
-int snd_pcm_hw_constraint_ratdens(snd_pcm_runtime_t *runtime, 
+int snd_pcm_hw_constraint_ratdens(struct snd_pcm_runtime *runtime, 
                                  unsigned int cond,
                                  snd_pcm_hw_param_t var,
-                                 snd_pcm_hw_constraint_ratdens_t *r)
+                                 struct snd_pcm_hw_constraint_ratdens *r)
 {
        return snd_pcm_hw_rule_add(runtime, cond, var,
                                   snd_pcm_hw_rule_ratdens, r,
                                   var, -1);
 }
 
-static int snd_pcm_hw_rule_msbits(snd_pcm_hw_params_t *params,
-                                 snd_pcm_hw_rule_t *rule)
+EXPORT_SYMBOL(snd_pcm_hw_constraint_ratdens);
+
+static int snd_pcm_hw_rule_msbits(struct snd_pcm_hw_params *params,
+                                 struct snd_pcm_hw_rule *rule)
 {
        unsigned int l = (unsigned long) rule->private;
        int width = l & 0xffff;
        unsigned int msbits = l >> 16;
-       snd_interval_t *i = hw_param_interval(params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS);
+       struct snd_interval *i = hw_param_interval(params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS);
        if (snd_interval_single(i) && snd_interval_value(i) == width)
                params->msbits = msbits;
        return 0;
@@ -1138,7 +1094,7 @@ static int snd_pcm_hw_rule_msbits(snd_pcm_hw_params_t *params,
  * @width: sample bits width
  * @msbits: msbits width
  */
-int snd_pcm_hw_constraint_msbits(snd_pcm_runtime_t *runtime, 
+int snd_pcm_hw_constraint_msbits(struct snd_pcm_runtime *runtime, 
                                 unsigned int cond,
                                 unsigned int width,
                                 unsigned int msbits)
@@ -1150,8 +1106,10 @@ int snd_pcm_hw_constraint_msbits(snd_pcm_runtime_t *runtime,
                                    SNDRV_PCM_HW_PARAM_SAMPLE_BITS, -1);
 }
 
-static int snd_pcm_hw_rule_step(snd_pcm_hw_params_t *params,
-                               snd_pcm_hw_rule_t *rule)
+EXPORT_SYMBOL(snd_pcm_hw_constraint_msbits);
+
+static int snd_pcm_hw_rule_step(struct snd_pcm_hw_params *params,
+                               struct snd_pcm_hw_rule *rule)
 {
        unsigned long step = (unsigned long) rule->private;
        return snd_interval_step(hw_param_interval(params, rule->var), 0, step);
@@ -1164,7 +1122,7 @@ static int snd_pcm_hw_rule_step(snd_pcm_hw_params_t *params,
  * @var: hw_params variable to apply the step constraint
  * @step: step size
  */
-int snd_pcm_hw_constraint_step(snd_pcm_runtime_t *runtime,
+int snd_pcm_hw_constraint_step(struct snd_pcm_runtime *runtime,
                               unsigned int cond,
                               snd_pcm_hw_param_t var,
                               unsigned long step)
@@ -1174,7 +1132,9 @@ int snd_pcm_hw_constraint_step(snd_pcm_runtime_t *runtime,
                                   var, -1);
 }
 
-static int snd_pcm_hw_rule_pow2(snd_pcm_hw_params_t *params, snd_pcm_hw_rule_t *rule)
+EXPORT_SYMBOL(snd_pcm_hw_constraint_step);
+
+static int snd_pcm_hw_rule_pow2(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule)
 {
        static int pow2_sizes[] = {
                1<<0, 1<<1, 1<<2, 1<<3, 1<<4, 1<<5, 1<<6, 1<<7,
@@ -1192,7 +1152,7 @@ static int snd_pcm_hw_rule_pow2(snd_pcm_hw_params_t *params, snd_pcm_hw_rule_t *
  * @cond: condition bits
  * @var: hw_params variable to apply the power-of-2 constraint
  */
-int snd_pcm_hw_constraint_pow2(snd_pcm_runtime_t *runtime,
+int snd_pcm_hw_constraint_pow2(struct snd_pcm_runtime *runtime,
                               unsigned int cond,
                               snd_pcm_hw_param_t var)
 {
@@ -1201,14 +1161,9 @@ int snd_pcm_hw_constraint_pow2(snd_pcm_runtime_t *runtime,
                                   var, -1);
 }
 
-/* To use the same code we have in alsa-lib */
-#define snd_pcm_t snd_pcm_substream_t
-#define assert(i) snd_assert((i), return -EINVAL)
-#ifndef INT_MIN
-#define INT_MIN ((int)((unsigned int)INT_MAX+1))
-#endif
+EXPORT_SYMBOL(snd_pcm_hw_constraint_pow2);
 
-static void _snd_pcm_hw_param_any(snd_pcm_hw_params_t *params,
+static void _snd_pcm_hw_param_any(struct snd_pcm_hw_params *params,
                                  snd_pcm_hw_param_t var)
 {
        if (hw_is_mask(var)) {
@@ -1226,19 +1181,7 @@ static void _snd_pcm_hw_param_any(snd_pcm_hw_params_t *params,
        snd_BUG();
 }
 
-#if 0
-/*
- * snd_pcm_hw_param_any
- */
-int snd_pcm_hw_param_any(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
-                        snd_pcm_hw_param_t var)
-{
-       _snd_pcm_hw_param_any(params, var);
-       return snd_pcm_hw_refine(pcm, params);
-}
-#endif  /*  0  */
-
-void _snd_pcm_hw_params_any(snd_pcm_hw_params_t *params)
+void _snd_pcm_hw_params_any(struct snd_pcm_hw_params *params)
 {
        unsigned int k;
        memset(params, 0, sizeof(*params));
@@ -1249,18 +1192,7 @@ void _snd_pcm_hw_params_any(snd_pcm_hw_params_t *params)
        params->info = ~0U;
 }
 
-#if 0
-/*
- * snd_pcm_hw_params_any
- *
- * Fill PARAMS with full configuration space boundaries
- */
-int snd_pcm_hw_params_any(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
-{
-       _snd_pcm_hw_params_any(params);
-       return snd_pcm_hw_refine(pcm, params);
-}
-#endif  /*  0  */
+EXPORT_SYMBOL(_snd_pcm_hw_params_any);
 
 /**
  * snd_pcm_hw_param_value
@@ -1271,11 +1203,11 @@ int snd_pcm_hw_params_any(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
  * Return the value for field PAR if it's fixed in configuration space 
  *  defined by PARAMS. Return -EINVAL otherwise
  */
-static int snd_pcm_hw_param_value(const snd_pcm_hw_params_t *params,
-                                 snd_pcm_hw_param_t var, int *dir)
+int snd_pcm_hw_param_value(const struct snd_pcm_hw_params *params,
+                          snd_pcm_hw_param_t var, int *dir)
 {
        if (hw_is_mask(var)) {
-               const snd_mask_t *mask = hw_param_mask_c(params, var);
+               const struct snd_mask *mask = hw_param_mask_c(params, var);
                if (!snd_mask_single(mask))
                        return -EINVAL;
                if (dir)
@@ -1283,70 +1215,19 @@ static int snd_pcm_hw_param_value(const snd_pcm_hw_params_t *params,
                return snd_mask_value(mask);
        }
        if (hw_is_interval(var)) {
-               const snd_interval_t *i = hw_param_interval_c(params, var);
+               const struct snd_interval *i = hw_param_interval_c(params, var);
                if (!snd_interval_single(i))
                        return -EINVAL;
                if (dir)
                        *dir = i->openmin;
                return snd_interval_value(i);
        }
-       assert(0);
        return -EINVAL;
 }
 
-/**
- * snd_pcm_hw_param_value_min
- * @params: the hw_params instance
- * @var: parameter to retrieve
- * @dir: pointer to the direction (-1,0,1) or NULL
- *
- * Return the minimum value for field PAR.
- */
-unsigned int snd_pcm_hw_param_value_min(const snd_pcm_hw_params_t *params,
-                                       snd_pcm_hw_param_t var, int *dir)
-{
-       if (hw_is_mask(var)) {
-               if (dir)
-                       *dir = 0;
-               return snd_mask_min(hw_param_mask_c(params, var));
-       }
-       if (hw_is_interval(var)) {
-               const snd_interval_t *i = hw_param_interval_c(params, var);
-               if (dir)
-                       *dir = i->openmin;
-               return snd_interval_min(i);
-       }
-       assert(0);
-       return -EINVAL;
-}
-
-/**
- * snd_pcm_hw_param_value_max
- * @params: the hw_params instance
- * @var: parameter to retrieve
- * @dir: pointer to the direction (-1,0,1) or NULL
- *
- * Return the maximum value for field PAR.
- */
-unsigned int snd_pcm_hw_param_value_max(const snd_pcm_hw_params_t *params,
-                                       snd_pcm_hw_param_t var, int *dir)
-{
-       if (hw_is_mask(var)) {
-               if (dir)
-                       *dir = 0;
-               return snd_mask_max(hw_param_mask_c(params, var));
-       }
-       if (hw_is_interval(var)) {
-               const snd_interval_t *i = hw_param_interval_c(params, var);
-               if (dir)
-                       *dir = - (int) i->openmax;
-               return snd_interval_max(i);
-       }
-       assert(0);
-       return -EINVAL;
-}
+EXPORT_SYMBOL(snd_pcm_hw_param_value);
 
-void _snd_pcm_hw_param_setempty(snd_pcm_hw_params_t *params,
+void _snd_pcm_hw_param_setempty(struct snd_pcm_hw_params *params,
                                snd_pcm_hw_param_t var)
 {
        if (hw_is_mask(var)) {
@@ -1362,44 +1243,9 @@ void _snd_pcm_hw_param_setempty(snd_pcm_hw_params_t *params,
        }
 }
 
-int _snd_pcm_hw_param_setinteger(snd_pcm_hw_params_t *params,
-                                snd_pcm_hw_param_t var)
-{
-       int changed;
-       assert(hw_is_interval(var));
-       changed = snd_interval_setinteger(hw_param_interval(params, var));
-       if (changed) {
-               params->cmask |= 1 << var;
-               params->rmask |= 1 << var;
-       }
-       return changed;
-}
-       
-#if 0
-/*
- * snd_pcm_hw_param_setinteger
- *
- * Inside configuration space defined by PARAMS remove from PAR all 
- * non integer values. Reduce configuration space accordingly.
- * Return -EINVAL if the configuration space is empty
- */
-int snd_pcm_hw_param_setinteger(snd_pcm_t *pcm, 
-                               snd_pcm_hw_params_t *params,
-                               snd_pcm_hw_param_t var)
-{
-       int changed = _snd_pcm_hw_param_setinteger(params, var);
-       if (changed < 0)
-               return changed;
-       if (params->rmask) {
-               int err = snd_pcm_hw_refine(pcm, params);
-               if (err < 0)
-                       return err;
-       }
-       return 0;
-}
-#endif  /*  0  */
+EXPORT_SYMBOL(_snd_pcm_hw_param_setempty);
 
-static int _snd_pcm_hw_param_first(snd_pcm_hw_params_t *params,
+static int _snd_pcm_hw_param_first(struct snd_pcm_hw_params *params,
                                   snd_pcm_hw_param_t var)
 {
        int changed;
@@ -1407,10 +1253,8 @@ static int _snd_pcm_hw_param_first(snd_pcm_hw_params_t *params,
                changed = snd_mask_refine_first(hw_param_mask(params, var));
        else if (hw_is_interval(var))
                changed = snd_interval_refine_first(hw_param_interval(params, var));
-       else {
-               assert(0);
+       else
                return -EINVAL;
-       }
        if (changed) {
                params->cmask |= 1 << var;
                params->rmask |= 1 << var;
@@ -1430,21 +1274,23 @@ static int _snd_pcm_hw_param_first(snd_pcm_hw_params_t *params,
  * values > minimum. Reduce configuration space accordingly.
  * Return the minimum.
  */
-static int snd_pcm_hw_param_first(snd_pcm_t *pcm, 
-                                 snd_pcm_hw_params_t *params, 
-                                 snd_pcm_hw_param_t var, int *dir)
+int snd_pcm_hw_param_first(struct snd_pcm_substream *pcm, 
+                          struct snd_pcm_hw_params *params, 
+                          snd_pcm_hw_param_t var, int *dir)
 {
        int changed = _snd_pcm_hw_param_first(params, var);
        if (changed < 0)
                return changed;
        if (params->rmask) {
                int err = snd_pcm_hw_refine(pcm, params);
-               assert(err >= 0);
+               snd_assert(err >= 0, return err);
        }
        return snd_pcm_hw_param_value(params, var, dir);
 }
 
-static int _snd_pcm_hw_param_last(snd_pcm_hw_params_t *params,
+EXPORT_SYMBOL(snd_pcm_hw_param_first);
+
+static int _snd_pcm_hw_param_last(struct snd_pcm_hw_params *params,
                                  snd_pcm_hw_param_t var)
 {
        int changed;
@@ -1452,10 +1298,8 @@ static int _snd_pcm_hw_param_last(snd_pcm_hw_params_t *params,
                changed = snd_mask_refine_last(hw_param_mask(params, var));
        else if (hw_is_interval(var))
                changed = snd_interval_refine_last(hw_param_interval(params, var));
-       else {
-               assert(0);
+       else
                return -EINVAL;
-       }
        if (changed) {
                params->cmask |= 1 << var;
                params->rmask |= 1 << var;
@@ -1475,381 +1319,21 @@ static int _snd_pcm_hw_param_last(snd_pcm_hw_params_t *params,
  * values < maximum. Reduce configuration space accordingly.
  * Return the maximum.
  */
-static int snd_pcm_hw_param_last(snd_pcm_t *pcm, 
-                                snd_pcm_hw_params_t *params,
-                                snd_pcm_hw_param_t var, int *dir)
+int snd_pcm_hw_param_last(struct snd_pcm_substream *pcm, 
+                         struct snd_pcm_hw_params *params,
+                         snd_pcm_hw_param_t var, int *dir)
 {
        int changed = _snd_pcm_hw_param_last(params, var);
        if (changed < 0)
                return changed;
        if (params->rmask) {
                int err = snd_pcm_hw_refine(pcm, params);
-               assert(err >= 0);
+               snd_assert(err >= 0, return err);
        }
        return snd_pcm_hw_param_value(params, var, dir);
 }
 
-int _snd_pcm_hw_param_min(snd_pcm_hw_params_t *params,
-                         snd_pcm_hw_param_t var, unsigned int val, int dir)
-{
-       int changed;
-       int open = 0;
-       if (dir) {
-               if (dir > 0) {
-                       open = 1;
-               } else if (dir < 0) {
-                       if (val > 0) {
-                               open = 1;
-                               val--;
-                       }
-               }
-       }
-       if (hw_is_mask(var))
-               changed = snd_mask_refine_min(hw_param_mask(params, var), val + !!open);
-       else if (hw_is_interval(var))
-               changed = snd_interval_refine_min(hw_param_interval(params, var), val, open);
-       else {
-               assert(0);
-               return -EINVAL;
-       }
-       if (changed) {
-               params->cmask |= 1 << var;
-               params->rmask |= 1 << var;
-       }
-       return changed;
-}
-
-/**
- * snd_pcm_hw_param_min
- * @pcm: PCM instance
- * @params: the hw_params instance
- * @var: parameter to retrieve
- * @val: minimal value
- * @dir: pointer to the direction (-1,0,1) or NULL
- *
- * Inside configuration space defined by PARAMS remove from PAR all 
- * values < VAL. Reduce configuration space accordingly.
- * Return new minimum or -EINVAL if the configuration space is empty
- */
-static int snd_pcm_hw_param_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
-                               snd_pcm_hw_param_t var, unsigned int val,
-                               int *dir)
-{
-       int changed = _snd_pcm_hw_param_min(params, var, val, dir ? *dir : 0);
-       if (changed < 0)
-               return changed;
-       if (params->rmask) {
-               int err = snd_pcm_hw_refine(pcm, params);
-               if (err < 0)
-                       return err;
-       }
-       return snd_pcm_hw_param_value_min(params, var, dir);
-}
-
-static int _snd_pcm_hw_param_max(snd_pcm_hw_params_t *params,
-                                snd_pcm_hw_param_t var, unsigned int val,
-                                int dir)
-{
-       int changed;
-       int open = 0;
-       if (dir) {
-               if (dir < 0) {
-                       open = 1;
-               } else if (dir > 0) {
-                       open = 1;
-                       val++;
-               }
-       }
-       if (hw_is_mask(var)) {
-               if (val == 0 && open) {
-                       snd_mask_none(hw_param_mask(params, var));
-                       changed = -EINVAL;
-               } else
-                       changed = snd_mask_refine_max(hw_param_mask(params, var), val - !!open);
-       } else if (hw_is_interval(var))
-               changed = snd_interval_refine_max(hw_param_interval(params, var), val, open);
-       else {
-               assert(0);
-               return -EINVAL;
-       }
-       if (changed) {
-               params->cmask |= 1 << var;
-               params->rmask |= 1 << var;
-       }
-       return changed;
-}
-
-/**
- * snd_pcm_hw_param_max
- * @pcm: PCM instance
- * @params: the hw_params instance
- * @var: parameter to retrieve
- * @val: maximal value
- * @dir: pointer to the direction (-1,0,1) or NULL
- *
- * Inside configuration space defined by PARAMS remove from PAR all 
- *  values >= VAL + 1. Reduce configuration space accordingly.
- *  Return new maximum or -EINVAL if the configuration space is empty
- */
-static int snd_pcm_hw_param_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
-                               snd_pcm_hw_param_t var, unsigned int val,
-                               int *dir)
-{
-       int changed = _snd_pcm_hw_param_max(params, var, val, dir ? *dir : 0);
-       if (changed < 0)
-               return changed;
-       if (params->rmask) {
-               int err = snd_pcm_hw_refine(pcm, params);
-               if (err < 0)
-                       return err;
-       }
-       return snd_pcm_hw_param_value_max(params, var, dir);
-}
-
-int _snd_pcm_hw_param_set(snd_pcm_hw_params_t *params,
-                         snd_pcm_hw_param_t var, unsigned int val, int dir)
-{
-       int changed;
-       if (hw_is_mask(var)) {
-               snd_mask_t *m = hw_param_mask(params, var);
-               if (val == 0 && dir < 0) {
-                       changed = -EINVAL;
-                       snd_mask_none(m);
-               } else {
-                       if (dir > 0)
-                               val++;
-                       else if (dir < 0)
-                               val--;
-                       changed = snd_mask_refine_set(hw_param_mask(params, var), val);
-               }
-       } else if (hw_is_interval(var)) {
-               snd_interval_t *i = hw_param_interval(params, var);
-               if (val == 0 && dir < 0) {
-                       changed = -EINVAL;
-                       snd_interval_none(i);
-               } else if (dir == 0)
-                       changed = snd_interval_refine_set(i, val);
-               else {
-                       snd_interval_t t;
-                       t.openmin = 1;
-                       t.openmax = 1;
-                       t.empty = 0;
-                       t.integer = 0;
-                       if (dir < 0) {
-                               t.min = val - 1;
-                               t.max = val;
-                       } else {
-                               t.min = val;
-                               t.max = val+1;
-                       }
-                       changed = snd_interval_refine(i, &t);
-               }
-       } else {
-               assert(0);
-               return -EINVAL;
-       }
-       if (changed) {
-               params->cmask |= 1 << var;
-               params->rmask |= 1 << var;
-       }
-       return changed;
-}
-
-/**
- * snd_pcm_hw_param_set
- * @pcm: PCM instance
- * @params: the hw_params instance
- * @var: parameter to retrieve
- * @val: value to set
- * @dir: pointer to the direction (-1,0,1) or NULL
- *
- * Inside configuration space defined by PARAMS remove from PAR all 
- * values != VAL. Reduce configuration space accordingly.
- *  Return VAL or -EINVAL if the configuration space is empty
- */
-int snd_pcm_hw_param_set(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
-                        snd_pcm_hw_param_t var, unsigned int val, int dir)
-{
-       int changed = _snd_pcm_hw_param_set(params, var, val, dir);
-       if (changed < 0)
-               return changed;
-       if (params->rmask) {
-               int err = snd_pcm_hw_refine(pcm, params);
-               if (err < 0)
-                       return err;
-       }
-       return snd_pcm_hw_param_value(params, var, NULL);
-}
-
-static int _snd_pcm_hw_param_mask(snd_pcm_hw_params_t *params,
-                                 snd_pcm_hw_param_t var, const snd_mask_t *val)
-{
-       int changed;
-       assert(hw_is_mask(var));
-       changed = snd_mask_refine(hw_param_mask(params, var), val);
-       if (changed) {
-               params->cmask |= 1 << var;
-               params->rmask |= 1 << var;
-       }
-       return changed;
-}
-
-/**
- * snd_pcm_hw_param_mask
- * @pcm: PCM instance
- * @params: the hw_params instance
- * @var: parameter to retrieve
- * @val: mask to apply
- *
- * Inside configuration space defined by PARAMS remove from PAR all values
- * not contained in MASK. Reduce configuration space accordingly.
- * This function can be called only for SNDRV_PCM_HW_PARAM_ACCESS,
- * SNDRV_PCM_HW_PARAM_FORMAT, SNDRV_PCM_HW_PARAM_SUBFORMAT.
- * Return 0 on success or -EINVAL
- * if the configuration space is empty
- */
-int snd_pcm_hw_param_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
-                         snd_pcm_hw_param_t var, const snd_mask_t *val)
-{
-       int changed = _snd_pcm_hw_param_mask(params, var, val);
-       if (changed < 0)
-               return changed;
-       if (params->rmask) {
-               int err = snd_pcm_hw_refine(pcm, params);
-               if (err < 0)
-                       return err;
-       }
-       return 0;
-}
-
-static int boundary_sub(int a, int adir,
-                       int b, int bdir,
-                       int *c, int *cdir)
-{
-       adir = adir < 0 ? -1 : (adir > 0 ? 1 : 0);
-       bdir = bdir < 0 ? -1 : (bdir > 0 ? 1 : 0);
-       *c = a - b;
-       *cdir = adir - bdir;
-       if (*cdir == -2) {
-               assert(*c > INT_MIN);
-               (*c)--;
-       } else if (*cdir == 2) {
-               assert(*c < INT_MAX);
-               (*c)++;
-       }
-       return 0;
-}
-
-static int boundary_lt(unsigned int a, int adir,
-                      unsigned int b, int bdir)
-{
-       assert(a > 0 || adir >= 0);
-       assert(b > 0 || bdir >= 0);
-       if (adir < 0) {
-               a--;
-               adir = 1;
-       } else if (adir > 0)
-               adir = 1;
-       if (bdir < 0) {
-               b--;
-               bdir = 1;
-       } else if (bdir > 0)
-               bdir = 1;
-       return a < b || (a == b && adir < bdir);
-}
-
-/* Return 1 if min is nearer to best than max */
-static int boundary_nearer(int min, int mindir,
-                          int best, int bestdir,
-                          int max, int maxdir)
-{
-       int dmin, dmindir;
-       int dmax, dmaxdir;
-       boundary_sub(best, bestdir, min, mindir, &dmin, &dmindir);
-       boundary_sub(max, maxdir, best, bestdir, &dmax, &dmaxdir);
-       return boundary_lt(dmin, dmindir, dmax, dmaxdir);
-}
-
-/**
- * snd_pcm_hw_param_near
- * @pcm: PCM instance
- * @params: the hw_params instance
- * @var: parameter to retrieve
- * @best: value to set
- * @dir: pointer to the direction (-1,0,1) or NULL
- *
- * Inside configuration space defined by PARAMS set PAR to the available value
- * nearest to VAL. Reduce configuration space accordingly.
- * This function cannot be called for SNDRV_PCM_HW_PARAM_ACCESS,
- * SNDRV_PCM_HW_PARAM_FORMAT, SNDRV_PCM_HW_PARAM_SUBFORMAT.
- * Return the value found.
-  */
-int snd_pcm_hw_param_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
-                         snd_pcm_hw_param_t var, unsigned int best, int *dir)
-{
-       snd_pcm_hw_params_t *save = NULL;
-       int v;
-       unsigned int saved_min;
-       int last = 0;
-       int min, max;
-       int mindir, maxdir;
-       int valdir = dir ? *dir : 0;
-       /* FIXME */
-       if (best > INT_MAX)
-               best = INT_MAX;
-       min = max = best;
-       mindir = maxdir = valdir;
-       if (maxdir > 0)
-               maxdir = 0;
-       else if (maxdir == 0)
-               maxdir = -1;
-       else {
-               maxdir = 1;
-               max--;
-       }
-       save = kmalloc(sizeof(*save), GFP_KERNEL);
-       if (save == NULL)
-               return -ENOMEM;
-       *save = *params;
-       saved_min = min;
-       min = snd_pcm_hw_param_min(pcm, params, var, min, &mindir);
-       if (min >= 0) {
-               snd_pcm_hw_params_t *params1;
-               if (max < 0)
-                       goto _end;
-               if ((unsigned int)min == saved_min && mindir == valdir)
-                       goto _end;
-               params1 = kmalloc(sizeof(*params1), GFP_KERNEL);
-               if (params1 == NULL) {
-                       kfree(save);
-                       return -ENOMEM;
-               }
-               *params1 = *save;
-               max = snd_pcm_hw_param_max(pcm, params1, var, max, &maxdir);
-               if (max < 0) {
-                       kfree(params1);
-                       goto _end;
-               }
-               if (boundary_nearer(max, maxdir, best, valdir, min, mindir)) {
-                       *params = *params1;
-                       last = 1;
-               }
-               kfree(params1);
-       } else {
-               *params = *save;
-               max = snd_pcm_hw_param_max(pcm, params, var, max, &maxdir);
-               assert(max >= 0);
-               last = 1;
-       }
- _end:
-       kfree(save);
-       if (last)
-               v = snd_pcm_hw_param_last(pcm, params, var, dir);
-       else
-               v = snd_pcm_hw_param_first(pcm, params, var, dir);
-       assert(v >= 0);
-       return v;
-}
+EXPORT_SYMBOL(snd_pcm_hw_param_last);
 
 /**
  * snd_pcm_hw_param_choose
@@ -1861,44 +1345,36 @@ int snd_pcm_hw_param_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
  * first access, first format, first subformat, min channels,
  * min rate, min period time, max buffer size, min tick time
  */
-int snd_pcm_hw_params_choose(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
-{
-       int err;
-
-       err = snd_pcm_hw_param_first(pcm, params, SNDRV_PCM_HW_PARAM_ACCESS, NULL);
-       assert(err >= 0);
-
-       err = snd_pcm_hw_param_first(pcm, params, SNDRV_PCM_HW_PARAM_FORMAT, NULL);
-       assert(err >= 0);
-
-       err = snd_pcm_hw_param_first(pcm, params, SNDRV_PCM_HW_PARAM_SUBFORMAT, NULL);
-       assert(err >= 0);
-
-       err = snd_pcm_hw_param_first(pcm, params, SNDRV_PCM_HW_PARAM_CHANNELS, NULL);
-       assert(err >= 0);
-
-       err = snd_pcm_hw_param_first(pcm, params, SNDRV_PCM_HW_PARAM_RATE, NULL);
-       assert(err >= 0);
-
-       err = snd_pcm_hw_param_first(pcm, params, SNDRV_PCM_HW_PARAM_PERIOD_TIME, NULL);
-       assert(err >= 0);
-
-       err = snd_pcm_hw_param_last(pcm, params, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, NULL);
-       assert(err >= 0);
-
-       err = snd_pcm_hw_param_first(pcm, params, SNDRV_PCM_HW_PARAM_TICK_TIME, NULL);
-       assert(err >= 0);
+int snd_pcm_hw_params_choose(struct snd_pcm_substream *pcm,
+                            struct snd_pcm_hw_params *params)
+{
+       static int vars[] = {
+               SNDRV_PCM_HW_PARAM_ACCESS,
+               SNDRV_PCM_HW_PARAM_FORMAT,
+               SNDRV_PCM_HW_PARAM_SUBFORMAT,
+               SNDRV_PCM_HW_PARAM_CHANNELS,
+               SNDRV_PCM_HW_PARAM_RATE,
+               SNDRV_PCM_HW_PARAM_PERIOD_TIME,
+               SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
+               SNDRV_PCM_HW_PARAM_TICK_TIME,
+               -1
+       };
+       int err, *v;
 
+       for (v = vars; *v != -1; v++) {
+               if (*v != SNDRV_PCM_HW_PARAM_BUFFER_SIZE)
+                       err = snd_pcm_hw_param_first(pcm, params, *v, NULL);
+               else
+                       err = snd_pcm_hw_param_last(pcm, params, *v, NULL);
+               snd_assert(err >= 0, return err);
+       }
        return 0;
 }
 
-#undef snd_pcm_t
-#undef assert
-
-static int snd_pcm_lib_ioctl_reset(snd_pcm_substream_t *substream,
+static int snd_pcm_lib_ioctl_reset(struct snd_pcm_substream *substream,
                                   void *arg)
 {
-       snd_pcm_runtime_t *runtime = substream->runtime;
+       struct snd_pcm_runtime *runtime = substream->runtime;
        unsigned long flags;
        snd_pcm_stream_lock_irqsave(substream, flags);
        if (snd_pcm_running(substream) &&
@@ -1910,11 +1386,11 @@ static int snd_pcm_lib_ioctl_reset(snd_pcm_substream_t *substream,
        return 0;
 }
 
-static int snd_pcm_lib_ioctl_channel_info(snd_pcm_substream_t *substream,
+static int snd_pcm_lib_ioctl_channel_info(struct snd_pcm_substream *substream,
                                          void *arg)
 {
-       snd_pcm_channel_info_t *info = arg;
-       snd_pcm_runtime_t *runtime = substream->runtime;
+       struct snd_pcm_channel_info *info = arg;
+       struct snd_pcm_runtime *runtime = substream->runtime;
        int width;
        if (!(runtime->info & SNDRV_PCM_INFO_MMAP)) {
                info->offset = -1;
@@ -1956,7 +1432,7 @@ static int snd_pcm_lib_ioctl_channel_info(snd_pcm_substream_t *substream,
  *
  * Returns zero if successful, or a negative error code on failure.
  */
-int snd_pcm_lib_ioctl(snd_pcm_substream_t *substream,
+int snd_pcm_lib_ioctl(struct snd_pcm_substream *substream,
                      unsigned int cmd, void *arg)
 {
        switch (cmd) {
@@ -1970,14 +1446,16 @@ int snd_pcm_lib_ioctl(snd_pcm_substream_t *substream,
        return -ENXIO;
 }
 
+EXPORT_SYMBOL(snd_pcm_lib_ioctl);
+
 /*
  *  Conditions
  */
 
-static void snd_pcm_system_tick_set(snd_pcm_substream_t *substream, 
+static void snd_pcm_system_tick_set(struct snd_pcm_substream *substream, 
                                    unsigned long ticks)
 {
-       snd_pcm_runtime_t *runtime = substream->runtime;
+       struct snd_pcm_runtime *runtime = substream->runtime;
        if (ticks == 0)
                del_timer(&runtime->tick_timer);
        else {
@@ -1988,14 +1466,14 @@ static void snd_pcm_system_tick_set(snd_pcm_substream_t *substream,
 }
 
 /* Temporary alias */
-void snd_pcm_tick_set(snd_pcm_substream_t *substream, unsigned long ticks)
+void snd_pcm_tick_set(struct snd_pcm_substream *substream, unsigned long ticks)
 {
        snd_pcm_system_tick_set(substream, ticks);
 }
 
-void snd_pcm_tick_prepare(snd_pcm_substream_t *substream)
+void snd_pcm_tick_prepare(struct snd_pcm_substream *substream)
 {
-       snd_pcm_runtime_t *runtime = substream->runtime;
+       struct snd_pcm_runtime *runtime = substream->runtime;
        snd_pcm_uframes_t frames = ULONG_MAX;
        snd_pcm_uframes_t avail, dist;
        unsigned int ticks;
@@ -2008,8 +1486,8 @@ void snd_pcm_tick_prepare(snd_pcm_substream_t *substream)
                           runtime->silence_filled < runtime->buffer_size) {
                        snd_pcm_sframes_t noise_dist;
                        noise_dist = snd_pcm_playback_hw_avail(runtime) + runtime->silence_filled;
-                       snd_assert(noise_dist <= (snd_pcm_sframes_t)runtime->silence_threshold, );
-                       frames = noise_dist - runtime->silence_threshold;
+                       if (noise_dist > (snd_pcm_sframes_t)runtime->silence_threshold)
+                               frames = noise_dist - runtime->silence_threshold;
                }
                avail = snd_pcm_playback_avail(runtime);
        } else {
@@ -2046,9 +1524,9 @@ void snd_pcm_tick_prepare(snd_pcm_substream_t *substream)
        snd_pcm_tick_set(substream, (unsigned long) ticks);
 }
 
-void snd_pcm_tick_elapsed(snd_pcm_substream_t *substream)
+void snd_pcm_tick_elapsed(struct snd_pcm_substream *substream)
 {
-       snd_pcm_runtime_t *runtime;
+       struct snd_pcm_runtime *runtime;
        unsigned long flags;
        
        snd_assert(substream != NULL, return);
@@ -2076,9 +1554,9 @@ void snd_pcm_tick_elapsed(snd_pcm_substream_t *substream)
  * Even if more than one periods have elapsed since the last call, you
  * have to call this only once.
  */
-void snd_pcm_period_elapsed(snd_pcm_substream_t *substream)
+void snd_pcm_period_elapsed(struct snd_pcm_substream *substream)
 {
-       snd_pcm_runtime_t *runtime;
+       struct snd_pcm_runtime *runtime;
        unsigned long flags;
 
        snd_assert(substream != NULL, return);
@@ -2104,12 +1582,14 @@ void snd_pcm_period_elapsed(snd_pcm_substream_t *substream)
        kill_fasync(&runtime->fasync, SIGIO, POLL_IN);
 }
 
-static int snd_pcm_lib_write_transfer(snd_pcm_substream_t *substream,
+EXPORT_SYMBOL(snd_pcm_period_elapsed);
+
+static int snd_pcm_lib_write_transfer(struct snd_pcm_substream *substream,
                                      unsigned int hwoff,
                                      unsigned long data, unsigned int off,
                                      snd_pcm_uframes_t frames)
 {
-       snd_pcm_runtime_t *runtime = substream->runtime;
+       struct snd_pcm_runtime *runtime = substream->runtime;
        int err;
        char __user *buf = (char __user *) data + frames_to_bytes(runtime, off);
        if (substream->ops->copy) {
@@ -2124,17 +1604,17 @@ static int snd_pcm_lib_write_transfer(snd_pcm_substream_t *substream,
        return 0;
 }
  
-typedef int (*transfer_f)(snd_pcm_substream_t *substream, unsigned int hwoff,
+typedef int (*transfer_f)(struct snd_pcm_substream *substream, unsigned int hwoff,
                          unsigned long data, unsigned int off,
                          snd_pcm_uframes_t size);
 
-static snd_pcm_sframes_t snd_pcm_lib_write1(snd_pcm_substream_t *substream, 
+static snd_pcm_sframes_t snd_pcm_lib_write1(struct snd_pcm_substream *substream, 
                                            unsigned long data,
                                            snd_pcm_uframes_t size,
                                            int nonblock,
                                            transfer_f transfer)
 {
-       snd_pcm_runtime_t *runtime = substream->runtime;
+       struct snd_pcm_runtime *runtime = substream->runtime;
        snd_pcm_uframes_t xfer = 0;
        snd_pcm_uframes_t offset = 0;
        int err = 0;
@@ -2290,9 +1770,9 @@ static snd_pcm_sframes_t snd_pcm_lib_write1(snd_pcm_substream_t *substream,
        return xfer > 0 ? (snd_pcm_sframes_t)xfer : err;
 }
 
-snd_pcm_sframes_t snd_pcm_lib_write(snd_pcm_substream_t *substream, const void __user *buf, snd_pcm_uframes_t size)
+snd_pcm_sframes_t snd_pcm_lib_write(struct snd_pcm_substream *substream, const void __user *buf, snd_pcm_uframes_t size)
 {
-       snd_pcm_runtime_t *runtime;
+       struct snd_pcm_runtime *runtime;
        int nonblock;
 
        snd_assert(substream != NULL, return -ENXIO);
@@ -2302,19 +1782,7 @@ snd_pcm_sframes_t snd_pcm_lib_write(snd_pcm_substream_t *substream, const void _
        if (runtime->status->state == SNDRV_PCM_STATE_OPEN)
                return -EBADFD;
 
-       snd_assert(substream->ffile != NULL, return -ENXIO);
-       nonblock = !!(substream->ffile->f_flags & O_NONBLOCK);
-#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
-       if (substream->oss.oss) {
-               snd_pcm_oss_setup_t *setup = substream->oss.setup;
-               if (setup != NULL) {
-                       if (setup->nonblock)
-                               nonblock = 1;
-                       else if (setup->block)
-                               nonblock = 0;
-               }
-       }
-#endif
+       nonblock = !!(substream->f_flags & O_NONBLOCK);
 
        if (runtime->access != SNDRV_PCM_ACCESS_RW_INTERLEAVED &&
            runtime->channels > 1)
@@ -2323,12 +1791,14 @@ snd_pcm_sframes_t snd_pcm_lib_write(snd_pcm_substream_t *substream, const void _
                                  snd_pcm_lib_write_transfer);
 }
 
-static int snd_pcm_lib_writev_transfer(snd_pcm_substream_t *substream,
+EXPORT_SYMBOL(snd_pcm_lib_write);
+
+static int snd_pcm_lib_writev_transfer(struct snd_pcm_substream *substream,
                                       unsigned int hwoff,
                                       unsigned long data, unsigned int off,
                                       snd_pcm_uframes_t frames)
 {
-       snd_pcm_runtime_t *runtime = substream->runtime;
+       struct snd_pcm_runtime *runtime = substream->runtime;
        int err;
        void __user **bufs = (void __user **)data;
        int channels = runtime->channels;
@@ -2363,11 +1833,11 @@ static int snd_pcm_lib_writev_transfer(snd_pcm_substream_t *substream,
        return 0;
 }
  
-snd_pcm_sframes_t snd_pcm_lib_writev(snd_pcm_substream_t *substream,
+snd_pcm_sframes_t snd_pcm_lib_writev(struct snd_pcm_substream *substream,
                                     void __user **bufs,
                                     snd_pcm_uframes_t frames)
 {
-       snd_pcm_runtime_t *runtime;
+       struct snd_pcm_runtime *runtime;
        int nonblock;
 
        snd_assert(substream != NULL, return -ENXIO);
@@ -2377,19 +1847,7 @@ snd_pcm_sframes_t snd_pcm_lib_writev(snd_pcm_substream_t *substream,
        if (runtime->status->state == SNDRV_PCM_STATE_OPEN)
                return -EBADFD;
 
-       snd_assert(substream->ffile != NULL, return -ENXIO);
-       nonblock = !!(substream->ffile->f_flags & O_NONBLOCK);
-#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
-       if (substream->oss.oss) {
-               snd_pcm_oss_setup_t *setup = substream->oss.setup;
-               if (setup != NULL) {
-                       if (setup->nonblock)
-                               nonblock = 1;
-                       else if (setup->block)
-                               nonblock = 0;
-               }
-       }
-#endif
+       nonblock = !!(substream->f_flags & O_NONBLOCK);
 
        if (runtime->access != SNDRV_PCM_ACCESS_RW_NONINTERLEAVED)
                return -EINVAL;
@@ -2397,12 +1855,14 @@ snd_pcm_sframes_t snd_pcm_lib_writev(snd_pcm_substream_t *substream,
                                  nonblock, snd_pcm_lib_writev_transfer);
 }
 
-static int snd_pcm_lib_read_transfer(snd_pcm_substream_t *substream, 
+EXPORT_SYMBOL(snd_pcm_lib_writev);
+
+static int snd_pcm_lib_read_transfer(struct snd_pcm_substream *substream, 
                                     unsigned int hwoff,
                                     unsigned long data, unsigned int off,
                                     snd_pcm_uframes_t frames)
 {
-       snd_pcm_runtime_t *runtime = substream->runtime;
+       struct snd_pcm_runtime *runtime = substream->runtime;
        int err;
        char __user *buf = (char __user *) data + frames_to_bytes(runtime, off);
        if (substream->ops->copy) {
@@ -2417,13 +1877,13 @@ static int snd_pcm_lib_read_transfer(snd_pcm_substream_t *substream,
        return 0;
 }
 
-static snd_pcm_sframes_t snd_pcm_lib_read1(snd_pcm_substream_t *substream,
+static snd_pcm_sframes_t snd_pcm_lib_read1(struct snd_pcm_substream *substream,
                                           unsigned long data,
                                           snd_pcm_uframes_t size,
                                           int nonblock,
                                           transfer_f transfer)
 {
-       snd_pcm_runtime_t *runtime = substream->runtime;
+       struct snd_pcm_runtime *runtime = substream->runtime;
        snd_pcm_uframes_t xfer = 0;
        snd_pcm_uframes_t offset = 0;
        int err = 0;
@@ -2587,9 +2047,9 @@ static snd_pcm_sframes_t snd_pcm_lib_read1(snd_pcm_substream_t *substream,
        return xfer > 0 ? (snd_pcm_sframes_t)xfer : err;
 }
 
-snd_pcm_sframes_t snd_pcm_lib_read(snd_pcm_substream_t *substream, void __user *buf, snd_pcm_uframes_t size)
+snd_pcm_sframes_t snd_pcm_lib_read(struct snd_pcm_substream *substream, void __user *buf, snd_pcm_uframes_t size)
 {
-       snd_pcm_runtime_t *runtime;
+       struct snd_pcm_runtime *runtime;
        int nonblock;
        
        snd_assert(substream != NULL, return -ENXIO);
@@ -2599,30 +2059,20 @@ snd_pcm_sframes_t snd_pcm_lib_read(snd_pcm_substream_t *substream, void __user *
        if (runtime->status->state == SNDRV_PCM_STATE_OPEN)
                return -EBADFD;
 
-       snd_assert(substream->ffile != NULL, return -ENXIO);
-       nonblock = !!(substream->ffile->f_flags & O_NONBLOCK);
-#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
-       if (substream->oss.oss) {
-               snd_pcm_oss_setup_t *setup = substream->oss.setup;
-               if (setup != NULL) {
-                       if (setup->nonblock)
-                               nonblock = 1;
-                       else if (setup->block)
-                               nonblock = 0;
-               }
-       }
-#endif
+       nonblock = !!(substream->f_flags & O_NONBLOCK);
        if (runtime->access != SNDRV_PCM_ACCESS_RW_INTERLEAVED)
                return -EINVAL;
        return snd_pcm_lib_read1(substream, (unsigned long)buf, size, nonblock, snd_pcm_lib_read_transfer);
 }
 
-static int snd_pcm_lib_readv_transfer(snd_pcm_substream_t *substream,
+EXPORT_SYMBOL(snd_pcm_lib_read);
+
+static int snd_pcm_lib_readv_transfer(struct snd_pcm_substream *substream,
                                      unsigned int hwoff,
                                      unsigned long data, unsigned int off,
                                      snd_pcm_uframes_t frames)
 {
-       snd_pcm_runtime_t *runtime = substream->runtime;
+       struct snd_pcm_runtime *runtime = substream->runtime;
        int err;
        void __user **bufs = (void __user **)data;
        int channels = runtime->channels;
@@ -2654,11 +2104,11 @@ static int snd_pcm_lib_readv_transfer(snd_pcm_substream_t *substream,
        return 0;
 }
  
-snd_pcm_sframes_t snd_pcm_lib_readv(snd_pcm_substream_t *substream,
+snd_pcm_sframes_t snd_pcm_lib_readv(struct snd_pcm_substream *substream,
                                    void __user **bufs,
                                    snd_pcm_uframes_t frames)
 {
-       snd_pcm_runtime_t *runtime;
+       struct snd_pcm_runtime *runtime;
        int nonblock;
 
        snd_assert(substream != NULL, return -ENXIO);
@@ -2668,71 +2118,10 @@ snd_pcm_sframes_t snd_pcm_lib_readv(snd_pcm_substream_t *substream,
        if (runtime->status->state == SNDRV_PCM_STATE_OPEN)
                return -EBADFD;
 
-       snd_assert(substream->ffile != NULL, return -ENXIO);
-       nonblock = !!(substream->ffile->f_flags & O_NONBLOCK);
-#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
-       if (substream->oss.oss) {
-               snd_pcm_oss_setup_t *setup = substream->oss.setup;
-               if (setup != NULL) {
-                       if (setup->nonblock)
-                               nonblock = 1;
-                       else if (setup->block)
-                               nonblock = 0;
-               }
-       }
-#endif
-
+       nonblock = !!(substream->f_flags & O_NONBLOCK);
        if (runtime->access != SNDRV_PCM_ACCESS_RW_NONINTERLEAVED)
                return -EINVAL;
        return snd_pcm_lib_read1(substream, (unsigned long)bufs, frames, nonblock, snd_pcm_lib_readv_transfer);
 }
 
-/*
- *  Exported symbols
- */
-
-EXPORT_SYMBOL(snd_interval_refine);
-EXPORT_SYMBOL(snd_interval_list);
-EXPORT_SYMBOL(snd_interval_ratnum);
-EXPORT_SYMBOL(_snd_pcm_hw_params_any);
-EXPORT_SYMBOL(_snd_pcm_hw_param_min);
-EXPORT_SYMBOL(_snd_pcm_hw_param_set);
-EXPORT_SYMBOL(_snd_pcm_hw_param_setempty);
-EXPORT_SYMBOL(_snd_pcm_hw_param_setinteger);
-EXPORT_SYMBOL(snd_pcm_hw_param_value_min);
-EXPORT_SYMBOL(snd_pcm_hw_param_value_max);
-EXPORT_SYMBOL(snd_pcm_hw_param_mask);
-EXPORT_SYMBOL(snd_pcm_hw_param_first);
-EXPORT_SYMBOL(snd_pcm_hw_param_last);
-EXPORT_SYMBOL(snd_pcm_hw_param_near);
-EXPORT_SYMBOL(snd_pcm_hw_param_set);
-EXPORT_SYMBOL(snd_pcm_hw_refine);
-EXPORT_SYMBOL(snd_pcm_hw_constraints_init);
-EXPORT_SYMBOL(snd_pcm_hw_constraints_complete);
-EXPORT_SYMBOL(snd_pcm_hw_constraint_list);
-EXPORT_SYMBOL(snd_pcm_hw_constraint_step);
-EXPORT_SYMBOL(snd_pcm_hw_constraint_ratnums);
-EXPORT_SYMBOL(snd_pcm_hw_constraint_ratdens);
-EXPORT_SYMBOL(snd_pcm_hw_constraint_msbits);
-EXPORT_SYMBOL(snd_pcm_hw_constraint_minmax);
-EXPORT_SYMBOL(snd_pcm_hw_constraint_integer);
-EXPORT_SYMBOL(snd_pcm_hw_constraint_pow2);
-EXPORT_SYMBOL(snd_pcm_hw_rule_add);
-EXPORT_SYMBOL(snd_pcm_set_ops);
-EXPORT_SYMBOL(snd_pcm_set_sync);
-EXPORT_SYMBOL(snd_pcm_lib_ioctl);
-EXPORT_SYMBOL(snd_pcm_stop);
-EXPORT_SYMBOL(snd_pcm_period_elapsed);
-EXPORT_SYMBOL(snd_pcm_lib_write);
-EXPORT_SYMBOL(snd_pcm_lib_read);
-EXPORT_SYMBOL(snd_pcm_lib_writev);
 EXPORT_SYMBOL(snd_pcm_lib_readv);
-EXPORT_SYMBOL(snd_pcm_lib_buffer_bytes);
-EXPORT_SYMBOL(snd_pcm_lib_period_bytes);
-/* pcm_memory.c */
-EXPORT_SYMBOL(snd_pcm_lib_preallocate_free_for_all);
-EXPORT_SYMBOL(snd_pcm_lib_preallocate_pages);
-EXPORT_SYMBOL(snd_pcm_lib_preallocate_pages_for_all);
-EXPORT_SYMBOL(snd_pcm_sgbuf_ops_page);
-EXPORT_SYMBOL(snd_pcm_lib_malloc_pages);
-EXPORT_SYMBOL(snd_pcm_lib_free_pages);