#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;
struct snd_pcm_group self_group; /* fake group for non linked substream (with substream lock inside) */
struct snd_pcm_group *group; /* pointer to current group */
/* -- assigned files -- */
- struct snd_pcm_file *file;
- struct file *ffile;
+ 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)
/* -- OSS things -- */
struct snd_pcm_oss_substream oss;
#endif
+#ifdef CONFIG_SND_VERBOSE_PROCFS
struct snd_info_entry *proc_root;
struct snd_info_entry *proc_info_entry;
struct snd_info_entry *proc_hw_params_entry;
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;
};
-#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
-#define SUBSTREAM_BUSY(substream) ((substream)->file != NULL || ((substream)->oss.file != NULL))
-#else
-#define SUBSTREAM_BUSY(substream) ((substream)->file != NULL)
-#endif
+#define SUBSTREAM_BUSY(substream) ((substream)->ref_count > 0)
struct snd_pcm_str {
/* -- OSS things -- */
struct snd_pcm_oss_stream oss;
#endif
- struct snd_pcm_file *files;
- struct snd_minor *reg;
+#ifdef CONFIG_SND_VERBOSE_PROCFS
struct snd_info_entry *proc_root;
struct snd_info_entry *proc_info_entry;
-#ifdef CONFIG_SND_DEBUG
+#ifdef CONFIG_SND_PCM_XRUN_DEBUG
unsigned int xrun_debug; /* 0 = disabled, 1 = verbose, 2 = stacktrace */
struct snd_info_entry *proc_xrun_debug_entry;
#endif
+#endif
};
struct snd_pcm {
struct snd_card *card;
+ struct list_head list;
unsigned int device; /* device number */
unsigned int info_flags;
unsigned short dev_class;
char id[64];
char name[80];
struct snd_pcm_str streams[2];
- struct semaphore open_mutex;
+ struct mutex open_mutex;
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
* Registering
*/
-extern struct snd_pcm *snd_pcm_devices[];
-extern struct snd_minor snd_pcm_reg[2];
+extern const struct file_operations snd_pcm_f_ops[2];
int snd_pcm_new(struct snd_card *card, char *id, int device,
int playback_count, int capture_count,
struct snd_pcm_info __user *info);
int snd_pcm_status(struct snd_pcm_substream *substream,
struct snd_pcm_status *status);
-int snd_pcm_prepare(struct snd_pcm_substream *substream);
int snd_pcm_start(struct snd_pcm_substream *substream);
int snd_pcm_stop(struct snd_pcm_substream *substream, int status);
int snd_pcm_drain_done(struct snd_pcm_substream *substream);
int snd_pcm_suspend(struct snd_pcm_substream *substream);
int snd_pcm_suspend_all(struct snd_pcm *pcm);
#endif
-int snd_pcm_kernel_playback_ioctl(struct snd_pcm_substream *substream, unsigned int cmd, void *arg);
-int snd_pcm_kernel_capture_ioctl(struct snd_pcm_substream *substream, unsigned int cmd, void *arg);
int snd_pcm_kernel_ioctl(struct snd_pcm_substream *substream, unsigned int cmd, void *arg);
-int snd_pcm_open_substream(struct snd_pcm *pcm, int stream, struct snd_pcm_substream **rsubstream);
+int snd_pcm_open_substream(struct snd_pcm *pcm, int stream, struct file *file,
+ struct snd_pcm_substream **rsubstream);
void snd_pcm_release_substream(struct snd_pcm_substream *substream);
+int snd_pcm_attach_substream(struct snd_pcm *pcm, int stream, struct file *file,
+ struct snd_pcm_substream **rsubstream);
+void snd_pcm_detach_substream(struct snd_pcm_substream *substream);
void snd_pcm_vma_notify_data(void *client, void *data);
int snd_pcm_mmap_data(struct snd_pcm_substream *substream, struct file *file, struct vm_area_struct *area);
read_unlock_irqrestore(&snd_pcm_link_rwlock, (flags)); \
} while (0)
-#define snd_pcm_group_for_each(pos, substream) \
- list_for_each(pos, &substream->group->substreams)
-
-#define snd_pcm_group_substream_entry(pos) \
- list_entry(pos, struct snd_pcm_substream, link_list)
+#define snd_pcm_group_for_each_entry(s, substream) \
+ list_for_each_entry(s, &substream->group->substreams, link_list)
static inline int snd_pcm_running(struct snd_pcm_substream *substream)
{
void _snd_pcm_hw_params_any(struct snd_pcm_hw_params *params);
void _snd_pcm_hw_param_setempty(struct snd_pcm_hw_params *params, snd_pcm_hw_param_t var);
-int snd_pcm_hw_param_near(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- snd_pcm_hw_param_t var,
- unsigned int val, int *dir);
-int snd_pcm_hw_param_set(struct snd_pcm_substream *pcm,
- struct snd_pcm_hw_params *params,
- snd_pcm_hw_param_t var,
- unsigned int val, int dir);
int snd_pcm_hw_params_choose(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params);
int snd_pcm_hw_refine(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params);
const unsigned char *snd_pcm_format_silence_64(snd_pcm_format_t format);
int snd_pcm_format_set_silence(snd_pcm_format_t format, void *buf, unsigned int frames);
snd_pcm_format_t snd_pcm_build_linear_format(int width, int unsignd, int big_endian);
-const char *snd_pcm_format_name(snd_pcm_format_t format);
void snd_pcm_set_ops(struct snd_pcm * pcm, int direction, struct snd_pcm_ops *ops);
void snd_pcm_set_sync(struct snd_pcm_substream *substream);
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 */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff