X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;ds=sidebyside;f=sound%2Fcore%2Fpcm_memory.c;h=428f8c169ee15406a7ad6c3d2bd8b90cba5b75f6;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=f1d5f7a6ee0c69b4e6131af5c10060a7d68e8590;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git

diff --git a/sound/core/pcm_memory.c b/sound/core/pcm_memory.c
index f1d5f7a6e..428f8c169 100644
--- a/sound/core/pcm_memory.c
+++ b/sound/core/pcm_memory.c
@@ -46,7 +46,7 @@ static const size_t snd_minimum_buffer = 16384;
  *
  * the minimum size is snd_minimum_buffer.  it should be power of 2.
  */
-static int preallocate_pcm_pages(snd_pcm_substream_t *substream, size_t size)
+static int preallocate_pcm_pages(struct snd_pcm_substream *substream, size_t size)
 {
 	struct snd_dma_buffer *dmab = &substream->dma_buffer;
 	int err;
@@ -78,7 +78,7 @@ static int preallocate_pcm_pages(snd_pcm_substream_t *substream, size_t size)
 /*
  * release the preallocated buffer if not yet done.
  */
-static void snd_pcm_lib_preallocate_dma_free(snd_pcm_substream_t *substream)
+static void snd_pcm_lib_preallocate_dma_free(struct snd_pcm_substream *substream)
 {
 	if (substream->dma_buffer.area == NULL)
 		return;
@@ -97,13 +97,13 @@ static void snd_pcm_lib_preallocate_dma_free(snd_pcm_substream_t *substream)
  *
  * Returns zero if successful, or a negative error code on failure.
  */
-int snd_pcm_lib_preallocate_free(snd_pcm_substream_t *substream)
+int snd_pcm_lib_preallocate_free(struct snd_pcm_substream *substream)
 {
 	snd_pcm_lib_preallocate_dma_free(substream);
-	if (substream->proc_prealloc_entry) {
-		snd_info_unregister(substream->proc_prealloc_entry);
-		substream->proc_prealloc_entry = NULL;
-	}
+#ifdef CONFIG_SND_VERBOSE_PROCFS
+	snd_info_unregister(substream->proc_prealloc_entry);
+	substream->proc_prealloc_entry = NULL;
+#endif
 	return 0;
 }
 
@@ -115,9 +115,9 @@ int snd_pcm_lib_preallocate_free(snd_pcm_substream_t *substream)
  *
  * Returns zero if successful, or a negative error code on failure.
  */
-int snd_pcm_lib_preallocate_free_for_all(snd_pcm_t *pcm)
+int snd_pcm_lib_preallocate_free_for_all(struct snd_pcm *pcm)
 {
-	snd_pcm_substream_t *substream;
+	struct snd_pcm_substream *substream;
 	int stream;
 
 	for (stream = 0; stream < 2; stream++)
@@ -126,15 +126,16 @@ int snd_pcm_lib_preallocate_free_for_all(snd_pcm_t *pcm)
 	return 0;
 }
 
+#ifdef CONFIG_SND_VERBOSE_PROCFS
 /*
  * read callback for prealloc proc file
  *
  * prints the current allocated size in kB.
  */
-static void snd_pcm_lib_preallocate_proc_read(snd_info_entry_t *entry,
-					      snd_info_buffer_t *buffer)
+static void snd_pcm_lib_preallocate_proc_read(struct snd_info_entry *entry,
+					      struct snd_info_buffer *buffer)
 {
-	snd_pcm_substream_t *substream = (snd_pcm_substream_t *)entry->private_data;
+	struct snd_pcm_substream *substream = entry->private_data;
 	snd_iprintf(buffer, "%lu\n", (unsigned long) substream->dma_buffer.bytes / 1024);
 }
 
@@ -143,10 +144,10 @@ static void snd_pcm_lib_preallocate_proc_read(snd_info_entry_t *entry,
  *
  * accepts the preallocation size in kB.
  */
-static void snd_pcm_lib_preallocate_proc_write(snd_info_entry_t *entry,
-					       snd_info_buffer_t *buffer)
+static void snd_pcm_lib_preallocate_proc_write(struct snd_info_entry *entry,
+					       struct snd_info_buffer *buffer)
 {
-	snd_pcm_substream_t *substream = (snd_pcm_substream_t *)entry->private_data;
+	struct snd_pcm_substream *substream = entry->private_data;
 	char line[64], str[64];
 	size_t size;
 	struct snd_dma_buffer new_dmab;
@@ -185,25 +186,16 @@ static void snd_pcm_lib_preallocate_proc_write(snd_info_entry_t *entry,
 	}
 }
 
-/*
- * pre-allocate the buffer and create a proc file for the substream
- */
-static int snd_pcm_lib_preallocate_pages1(snd_pcm_substream_t *substream,
-					  size_t size, size_t max)
+static inline void preallocate_info_init(struct snd_pcm_substream *substream)
 {
-	snd_info_entry_t *entry;
-
-	if (size > 0 && preallocate_dma && substream->number < maximum_substreams)
-		preallocate_pcm_pages(substream, size);
+	struct snd_info_entry *entry;
 
-	if (substream->dma_buffer.bytes > 0)
-		substream->buffer_bytes_max = substream->dma_buffer.bytes;
-	substream->dma_max = max;
 	if ((entry = snd_info_create_card_entry(substream->pcm->card, "prealloc", substream->proc_root)) != NULL) {
 		entry->c.text.read_size = 64;
 		entry->c.text.read = snd_pcm_lib_preallocate_proc_read;
 		entry->c.text.write_size = 64;
 		entry->c.text.write = snd_pcm_lib_preallocate_proc_write;
+		entry->mode |= S_IWUSR;
 		entry->private_data = substream;
 		if (snd_info_register(entry) < 0) {
 			snd_info_free_entry(entry);
@@ -211,6 +203,26 @@ static int snd_pcm_lib_preallocate_pages1(snd_pcm_substream_t *substream,
 		}
 	}
 	substream->proc_prealloc_entry = entry;
+}
+
+#else /* !CONFIG_SND_VERBOSE_PROCFS */
+#define preallocate_info_init(s)
+#endif /* CONFIG_SND_VERBOSE_PROCFS */
+
+/*
+ * pre-allocate the buffer and create a proc file for the substream
+ */
+static int snd_pcm_lib_preallocate_pages1(struct snd_pcm_substream *substream,
+					  size_t size, size_t max)
+{
+
+	if (size > 0 && preallocate_dma && substream->number < maximum_substreams)
+		preallocate_pcm_pages(substream, size);
+
+	if (substream->dma_buffer.bytes > 0)
+		substream->buffer_bytes_max = substream->dma_buffer.bytes;
+	substream->dma_max = max;
+	preallocate_info_init(substream);
 	return 0;
 }
 
@@ -232,7 +244,7 @@ static int snd_pcm_lib_preallocate_pages1(snd_pcm_substream_t *substream,
  *
  * Returns zero if successful, or a negative error code on failure.
  */
-int snd_pcm_lib_preallocate_pages(snd_pcm_substream_t *substream,
+int snd_pcm_lib_preallocate_pages(struct snd_pcm_substream *substream,
 				  int type, struct device *data,
 				  size_t size, size_t max)
 {
@@ -243,7 +255,7 @@ int snd_pcm_lib_preallocate_pages(snd_pcm_substream_t *substream,
 
 /**
  * snd_pcm_lib_preallocate_pages_for_all - pre-allocation for continous memory type (all substreams)
- * @substream: the pcm substream instance
+ * @pcm: the pcm instance
  * @type: DMA type (SNDRV_DMA_TYPE_*)
  * @data: DMA type dependant data
  * @size: the requested pre-allocation size in bytes
@@ -254,11 +266,11 @@ int snd_pcm_lib_preallocate_pages(snd_pcm_substream_t *substream,
  *
  * Returns zero if successful, or a negative error code on failure.
  */
-int snd_pcm_lib_preallocate_pages_for_all(snd_pcm_t *pcm,
+int snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm *pcm,
 					  int type, void *data,
 					  size_t size, size_t max)
 {
-	snd_pcm_substream_t *substream;
+	struct snd_pcm_substream *substream;
 	int stream, err;
 
 	for (stream = 0; stream < 2; stream++)
@@ -276,7 +288,7 @@ int snd_pcm_lib_preallocate_pages_for_all(snd_pcm_t *pcm,
  * Returns the page struct at the given buffer offset.
  * Used as the page callback of PCM ops.
  */
-struct page *snd_pcm_sgbuf_ops_page(snd_pcm_substream_t *substream, unsigned long offset)
+struct page *snd_pcm_sgbuf_ops_page(struct snd_pcm_substream *substream, unsigned long offset)
 {
 	struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
 
@@ -297,9 +309,9 @@ struct page *snd_pcm_sgbuf_ops_page(snd_pcm_substream_t *substream, unsigned lon
  * Returns 1 if the buffer is changed, 0 if not changed, or a negative
  * code on failure.
  */
-int snd_pcm_lib_malloc_pages(snd_pcm_substream_t *substream, size_t size)
+int snd_pcm_lib_malloc_pages(struct snd_pcm_substream *substream, size_t size)
 {
-	snd_pcm_runtime_t *runtime;
+	struct snd_pcm_runtime *runtime;
 	struct snd_dma_buffer *dmab = NULL;
 
 	snd_assert(substream->dma_buffer.dev.type != SNDRV_DMA_TYPE_UNKNOWN, return -EINVAL);
@@ -317,10 +329,11 @@ int snd_pcm_lib_malloc_pages(snd_pcm_substream_t *substream, size_t size)
 		}
 		snd_pcm_lib_free_pages(substream);
 	}
-	if (substream->dma_buffer.area != NULL && substream->dma_buffer.bytes >= size) {
+	if (substream->dma_buffer.area != NULL &&
+	    substream->dma_buffer.bytes >= size) {
 		dmab = &substream->dma_buffer; /* use the pre-allocated buffer */
 	} else {
-		dmab = kcalloc(1, sizeof(*dmab), GFP_KERNEL);
+		dmab = kzalloc(sizeof(*dmab), GFP_KERNEL);
 		if (! dmab)
 			return -ENOMEM;
 		dmab->dev = substream->dma_buffer.dev;
@@ -344,9 +357,9 @@ int snd_pcm_lib_malloc_pages(snd_pcm_substream_t *substream, size_t size)
  *
  * Returns zero if successful, or a negative error code on failure.
  */
-int snd_pcm_lib_free_pages(snd_pcm_substream_t *substream)
+int snd_pcm_lib_free_pages(struct snd_pcm_substream *substream)
 {
-	snd_pcm_runtime_t *runtime;
+	struct snd_pcm_runtime *runtime;
 
 	snd_assert(substream != NULL, return -EINVAL);
 	runtime = substream->runtime;