Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 366 insertions, 0 deletions

diff --git a/include/sound/pcm_params.h b/include/sound/pcm_params.h
new file mode 100644
index 00000000000..60b0e92e26f
--- /dev/null
+++ b/include/sound/pcm_params.h
@@ -0,0 +1,366 @@
+#ifndef __SOUND_PCM_PARAMS_H
+#define __SOUND_PCM_PARAMS_H
+
+/*
+ *  PCM params helpers
+ *  Copyright (c) by Abramo Bagnara <abramo@alsa-project.org>
+ *
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+
+extern int snd_pcm_hw_param_mask(snd_pcm_substream_t *pcm, snd_pcm_hw_params_t *params,
+				 snd_pcm_hw_param_t var, const snd_mask_t *val);
+extern unsigned int snd_pcm_hw_param_value_min(const snd_pcm_hw_params_t *params,
+					       snd_pcm_hw_param_t var, int *dir);
+extern unsigned int snd_pcm_hw_param_value_max(const snd_pcm_hw_params_t *params,
+					       snd_pcm_hw_param_t var, int *dir);
+extern int _snd_pcm_hw_param_min(snd_pcm_hw_params_t *params,
+				 snd_pcm_hw_param_t var, unsigned int val, int dir);
+extern int _snd_pcm_hw_param_setinteger(snd_pcm_hw_params_t *params,
+					snd_pcm_hw_param_t var);
+extern int _snd_pcm_hw_param_set(snd_pcm_hw_params_t *params,
+				 snd_pcm_hw_param_t var, unsigned int val, int dir);
+
+/* To share the same code we have  alsa-lib */
+#define INLINE static inline
+#define assert(a) (void)(a)
+
+#define SNDRV_MASK_BITS	64	/* we use so far 64bits only */
+#define SNDRV_MASK_SIZE	(SNDRV_MASK_BITS / 32)
+#define MASK_OFS(i)	((i) >> 5)
+#define MASK_BIT(i)	(1U << ((i) & 31))
+
+INLINE unsigned int ld2(u_int32_t v)
+{
+        unsigned r = 0;
+
+        if (v >= 0x10000) {
+                v >>= 16;
+                r += 16;
+        }
+        if (v >= 0x100) {
+                v >>= 8;
+                r += 8;
+        }
+        if (v >= 0x10) {
+                v >>= 4;
+                r += 4;
+        }
+        if (v >= 4) {
+                v >>= 2;
+                r += 2;
+        }
+        if (v >= 2)
+                r++;
+        return r;
+}
+
+INLINE size_t snd_mask_sizeof(void)
+{
+	return sizeof(snd_mask_t);
+}
+
+INLINE void snd_mask_none(snd_mask_t *mask)
+{
+	memset(mask, 0, sizeof(*mask));
+}
+
+INLINE void snd_mask_any(snd_mask_t *mask)
+{
+	memset(mask, 0xff, SNDRV_MASK_SIZE * sizeof(u_int32_t));
+}
+
+INLINE int snd_mask_empty(const snd_mask_t *mask)
+{
+	int i;
+	for (i = 0; i < SNDRV_MASK_SIZE; i++)
+		if (mask->bits[i])
+			return 0;
+	return 1;
+}
+
+INLINE unsigned int snd_mask_min(const snd_mask_t *mask)
+{
+	int i;
+	assert(!snd_mask_empty(mask));
+	for (i = 0; i < SNDRV_MASK_SIZE; i++) {
+		if (mask->bits[i])
+			return ffs(mask->bits[i]) - 1 + (i << 5);
+	}
+	return 0;
+}
+
+INLINE unsigned int snd_mask_max(const snd_mask_t *mask)
+{
+	int i;
+	assert(!snd_mask_empty(mask));
+	for (i = SNDRV_MASK_SIZE - 1; i >= 0; i--) {
+		if (mask->bits[i])
+			return ld2(mask->bits[i]) + (i << 5);
+	}
+	return 0;
+}
+
+INLINE void snd_mask_set(snd_mask_t *mask, unsigned int val)
+{
+	assert(val <= SNDRV_MASK_BITS);
+	mask->bits[MASK_OFS(val)] |= MASK_BIT(val);
+}
+
+INLINE void snd_mask_reset(snd_mask_t *mask, unsigned int val)
+{
+	assert(val <= SNDRV_MASK_BITS);
+	mask->bits[MASK_OFS(val)] &= ~MASK_BIT(val);
+}
+
+INLINE void snd_mask_set_range(snd_mask_t *mask, unsigned int from, unsigned int to)
+{
+	unsigned int i;
+	assert(to <= SNDRV_MASK_BITS && from <= to);
+	for (i = from; i <= to; i++)
+		mask->bits[MASK_OFS(i)] |= MASK_BIT(i);
+}
+
+INLINE void snd_mask_reset_range(snd_mask_t *mask, unsigned int from, unsigned int to)
+{
+	unsigned int i;
+	assert(to <= SNDRV_MASK_BITS && from <= to);
+	for (i = from; i <= to; i++)
+		mask->bits[MASK_OFS(i)] &= ~MASK_BIT(i);
+}
+
+INLINE void snd_mask_leave(snd_mask_t *mask, unsigned int val)
+{
+	unsigned int v;
+	assert(val <= SNDRV_MASK_BITS);
+	v = mask->bits[MASK_OFS(val)] & MASK_BIT(val);
+	snd_mask_none(mask);
+	mask->bits[MASK_OFS(val)] = v;
+}
+
+INLINE void snd_mask_intersect(snd_mask_t *mask, const snd_mask_t *v)
+{
+	int i;
+	for (i = 0; i < SNDRV_MASK_SIZE; i++)
+		mask->bits[i] &= v->bits[i];
+}
+
+INLINE int snd_mask_eq(const snd_mask_t *mask, const snd_mask_t *v)
+{
+	return ! memcmp(mask, v, SNDRV_MASK_SIZE * sizeof(u_int32_t));
+}
+
+INLINE void snd_mask_copy(snd_mask_t *mask, const snd_mask_t *v)
+{
+	*mask = *v;
+}
+
+INLINE int snd_mask_test(const snd_mask_t *mask, unsigned int val)
+{
+	assert(val <= SNDRV_MASK_BITS);
+	return mask->bits[MASK_OFS(val)] & MASK_BIT(val);
+}
+
+INLINE int snd_mask_single(const snd_mask_t *mask)
+{
+	int i, c = 0;
+	assert(!snd_mask_empty(mask));
+	for (i = 0; i < SNDRV_MASK_SIZE; i++) {
+		if (! mask->bits[i])
+			continue;
+		if (mask->bits[i] & (mask->bits[i] - 1))
+			return 0;
+		if (c)
+			return 0;
+		c++;
+	}
+	return 1;
+}
+
+INLINE int snd_mask_refine(snd_mask_t *mask, const snd_mask_t *v)
+{
+	snd_mask_t old;
+	assert(!snd_mask_empty(mask));
+	snd_mask_copy(&old, mask);
+	snd_mask_intersect(mask, v);
+	if (snd_mask_empty(mask))
+		return -EINVAL;
+	return !snd_mask_eq(mask, &old);
+}
+
+INLINE int snd_mask_refine_first(snd_mask_t *mask)
+{
+	assert(!snd_mask_empty(mask));
+	if (snd_mask_single(mask))
+		return 0;
+	snd_mask_leave(mask, snd_mask_min(mask));
+	return 1;
+}
+
+INLINE int snd_mask_refine_last(snd_mask_t *mask)
+{
+	assert(!snd_mask_empty(mask));
+	if (snd_mask_single(mask))
+		return 0;
+	snd_mask_leave(mask, snd_mask_max(mask));
+	return 1;
+}
+
+INLINE int snd_mask_refine_min(snd_mask_t *mask, unsigned int val)
+{
+	assert(!snd_mask_empty(mask));
+	if (snd_mask_min(mask) >= val)
+		return 0;
+	snd_mask_reset_range(mask, 0, val - 1);
+	if (snd_mask_empty(mask))
+		return -EINVAL;
+	return 1;
+}
+
+INLINE int snd_mask_refine_max(snd_mask_t *mask, unsigned int val)
+{
+	assert(!snd_mask_empty(mask));
+	if (snd_mask_max(mask) <= val)
+		return 0;
+	snd_mask_reset_range(mask, val + 1, SNDRV_MASK_BITS);
+	if (snd_mask_empty(mask))
+		return -EINVAL;
+	return 1;
+}
+
+INLINE int snd_mask_refine_set(snd_mask_t *mask, unsigned int val)
+{
+	int changed;
+	assert(!snd_mask_empty(mask));
+	changed = !snd_mask_single(mask);
+	snd_mask_leave(mask, val);
+	if (snd_mask_empty(mask))
+		return -EINVAL;
+	return changed;
+}
+
+INLINE int snd_mask_value(const snd_mask_t *mask)
+{
+	assert(!snd_mask_empty(mask));
+	return snd_mask_min(mask);
+}
+
+INLINE void snd_interval_any(snd_interval_t *i)
+{
+	i->min = 0;
+	i->openmin = 0;
+	i->max = UINT_MAX;
+	i->openmax = 0;
+	i->integer = 0;
+	i->empty = 0;
+}
+
+INLINE void snd_interval_none(snd_interval_t *i)
+{
+	i->empty = 1;
+}
+
+INLINE int snd_interval_checkempty(const snd_interval_t *i)
+{
+	return (i->min > i->max ||
+		(i->min == i->max && (i->openmin || i->openmax)));
+}
+
+INLINE int snd_interval_empty(const snd_interval_t *i)
+{
+	return i->empty;
+}
+
+INLINE int snd_interval_single(const snd_interval_t *i)
+{
+	assert(!snd_interval_empty(i));
+	return (i->min == i->max || 
+		(i->min + 1 == i->max && i->openmax));
+}
+
+INLINE int snd_interval_value(const snd_interval_t *i)
+{
+	assert(snd_interval_single(i));
+	return i->min;
+}
+
+INLINE int snd_interval_min(const snd_interval_t *i)
+{
+	assert(!snd_interval_empty(i));
+	return i->min;
+}
+
+INLINE int snd_interval_max(const snd_interval_t *i)
+{
+	unsigned int v;
+	assert(!snd_interval_empty(i));
+	v = i->max;
+	if (i->openmax)
+		v--;
+	return v;
+}
+
+INLINE int snd_interval_test(const snd_interval_t *i, unsigned int val)
+{
+	return !((i->min > val || (i->min == val && i->openmin) ||
+		  i->max < val || (i->max == val && i->openmax)));
+}
+
+INLINE void snd_interval_copy(snd_interval_t *d, const snd_interval_t *s)
+{
+	*d = *s;
+}
+
+INLINE int snd_interval_setinteger(snd_interval_t *i)
+{
+	if (i->integer)
+		return 0;
+	if (i->openmin && i->openmax && i->min == i->max)
+		return -EINVAL;
+	i->integer = 1;
+	return 1;
+}
+
+INLINE int snd_interval_eq(const snd_interval_t *i1, const snd_interval_t *i2)
+{
+	if (i1->empty)
+		return i2->empty;
+	if (i2->empty)
+		return i1->empty;
+	return i1->min == i2->min && i1->openmin == i2->openmin &&
+		i1->max == i2->max && i1->openmax == i2->openmax;
+}
+
+static inline unsigned int add(unsigned int a, unsigned int b)
+{
+	if (a >= UINT_MAX - b)
+		return UINT_MAX;
+	return a + b;
+}
+
+static inline unsigned int sub(unsigned int a, unsigned int b)
+{
+	if (a > b)
+		return a - b;
+	return 0;
+}
+
+#undef INLINE
+#undef assert
+
+#endif /* __SOUND_PCM_PARAMS_H */
+