#include <sound/asound.h>
#include <sound/memalloc.h>
#include <linux/poll.h>
+#include <linux/mm.h>
#include <linux/bitops.h>
#define snd_pcm_substream_chip(substream) ((substream)->private_data)
size_t fifo_size; /* fifo size in bytes */
};
+struct snd_pcm_substream;
+
struct snd_pcm_ops {
int (*open)(struct snd_pcm_substream *substream);
int (*close)(struct snd_pcm_substream *substream);
struct snd_pcm_file {
struct snd_pcm_substream *substream;
- struct snd_pcm_file *next;
+ int no_compat_mmap;
};
struct snd_pcm_hw_rule;
/* -- mmap -- */
volatile struct snd_pcm_mmap_status *status;
volatile struct snd_pcm_mmap_control *control;
- atomic_t mmap_count;
/* -- locking / scheduling -- */
wait_queue_head_t sleep;
int number;
char name[32]; /* substream name */
int stream; /* stream (direction) */
+ char latency_id[20]; /* latency identifier */
size_t buffer_bytes_max; /* limit ring buffer size */
struct snd_dma_buffer dma_buffer;
unsigned int dma_buf_id;
/* -- assigned files -- */
void *file;
int ref_count;
+ atomic_t mmap_count;
unsigned int f_flags;
void (*pcm_release)(struct snd_pcm_substream *);
#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
struct snd_info_entry *proc_sw_params_entry;
struct snd_info_entry *proc_status_entry;
struct snd_info_entry *proc_prealloc_entry;
+ struct snd_info_entry *proc_prealloc_max_entry;
#endif
/* misc flags */
- unsigned int no_mmap_ctrl: 1;
unsigned int hw_opened: 1;
};
/* -- OSS things -- */
struct snd_pcm_oss_stream oss;
#endif
- struct snd_pcm_file *files;
#ifdef CONFIG_SND_VERBOSE_PROCFS
struct snd_info_entry *proc_root;
struct snd_info_entry *proc_info_entry;
wait_queue_head_t open_wait;
void *private_data;
void (*private_free) (struct snd_pcm *pcm);
+ struct device *dev; /* actual hw device this belongs to */
#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
struct snd_pcm_oss oss;
#endif
static inline void snd_pcm_mmap_data_open(struct vm_area_struct *area)
{
struct snd_pcm_substream *substream = (struct snd_pcm_substream *)area->vm_private_data;
- atomic_inc(&substream->runtime->mmap_count);
+ atomic_inc(&substream->mmap_count);
}
static inline void snd_pcm_mmap_data_close(struct vm_area_struct *area)
{
struct snd_pcm_substream *substream = (struct snd_pcm_substream *)area->vm_private_data;
- atomic_dec(&substream->runtime->mmap_count);
+ atomic_dec(&substream->mmap_count);
}
/* mmap for io-memory area */