[ALSA] Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz
[linux-2.6.git] / sound / core / pcm_memory.c
index 428f8c1..a13e38c 100644 (file)
@@ -1,6 +1,6 @@
 /*
  *  Digital Audio (PCM) abstract layer
- *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
  *
  *
  *   This program is free software; you can redistribute it and/or modify
@@ -101,7 +101,9 @@ int snd_pcm_lib_preallocate_free(struct snd_pcm_substream *substream)
 {
        snd_pcm_lib_preallocate_dma_free(substream);
 #ifdef CONFIG_SND_VERBOSE_PROCFS
-       snd_info_unregister(substream->proc_prealloc_entry);
+       snd_info_free_entry(substream->proc_prealloc_max_entry);
+       substream->proc_prealloc_max_entry = NULL;
+       snd_info_free_entry(substream->proc_prealloc_entry);
        substream->proc_prealloc_entry = NULL;
 #endif
        return 0;
@@ -126,6 +128,8 @@ int snd_pcm_lib_preallocate_free_for_all(struct snd_pcm *pcm)
        return 0;
 }
 
+EXPORT_SYMBOL(snd_pcm_lib_preallocate_free_for_all);
+
 #ifdef CONFIG_SND_VERBOSE_PROCFS
 /*
  * read callback for prealloc proc file
@@ -140,6 +144,18 @@ static void snd_pcm_lib_preallocate_proc_read(struct snd_info_entry *entry,
 }
 
 /*
+ * read callback for prealloc_max proc file
+ *
+ * prints the maximum allowed size in kB.
+ */
+static void snd_pcm_lib_preallocate_max_proc_read(struct snd_info_entry *entry,
+                                                 struct snd_info_buffer *buffer)
+{
+       struct snd_pcm_substream *substream = entry->private_data;
+       snd_iprintf(buffer, "%lu\n", (unsigned long) substream->dma_max / 1024);
+}
+
+/*
  * write callback for prealloc proc file
  *
  * accepts the preallocation size in kB.
@@ -191,9 +207,7 @@ static inline void preallocate_info_init(struct snd_pcm_substream *substream)
        struct snd_info_entry *entry;
 
        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;
@@ -203,6 +217,15 @@ static inline void preallocate_info_init(struct snd_pcm_substream *substream)
                }
        }
        substream->proc_prealloc_entry = entry;
+       if ((entry = snd_info_create_card_entry(substream->pcm->card, "prealloc_max", substream->proc_root)) != NULL) {
+               entry->c.text.read = snd_pcm_lib_preallocate_max_proc_read;
+               entry->private_data = substream;
+               if (snd_info_register(entry) < 0) {
+                       snd_info_free_entry(entry);
+                       entry = NULL;
+               }
+       }
+       substream->proc_prealloc_max_entry = entry;
 }
 
 #else /* !CONFIG_SND_VERBOSE_PROCFS */
@@ -253,6 +276,8 @@ int snd_pcm_lib_preallocate_pages(struct snd_pcm_substream *substream,
        return snd_pcm_lib_preallocate_pages1(substream, size, max);
 }
 
+EXPORT_SYMBOL(snd_pcm_lib_preallocate_pages);
+
 /**
  * snd_pcm_lib_preallocate_pages_for_all - pre-allocation for continous memory type (all substreams)
  * @pcm: the pcm instance
@@ -280,6 +305,8 @@ int snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm *pcm,
        return 0;
 }
 
+EXPORT_SYMBOL(snd_pcm_lib_preallocate_pages_for_all);
+
 /**
  * snd_pcm_sgbuf_ops_page - get the page struct at the given offset
  * @substream: the pcm substream instance
@@ -298,6 +325,8 @@ struct page *snd_pcm_sgbuf_ops_page(struct snd_pcm_substream *substream, unsigne
        return sgbuf->page_table[idx];
 }
 
+EXPORT_SYMBOL(snd_pcm_sgbuf_ops_page);
+
 /**
  * snd_pcm_lib_malloc_pages - allocate the DMA buffer
  * @substream: the substream to allocate the DMA buffer to
@@ -349,6 +378,8 @@ int snd_pcm_lib_malloc_pages(struct snd_pcm_substream *substream, size_t size)
        return 1;                       /* area was changed */
 }
 
+EXPORT_SYMBOL(snd_pcm_lib_malloc_pages);
+
 /**
  * snd_pcm_lib_free_pages - release the allocated DMA buffer.
  * @substream: the substream to release the DMA buffer
@@ -374,3 +405,5 @@ int snd_pcm_lib_free_pages(struct snd_pcm_substream *substream)
        snd_pcm_set_runtime_buffer(substream, NULL);
        return 0;
 }
+
+EXPORT_SYMBOL(snd_pcm_lib_free_pages);