UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

[ALSA] Optimize for config without PROC_FS 

Modules: HWDEP Midlevel,ALSA Core,PCM Midlevel,Timer Midlevel

Optimize the code when compiled without CONFIG_PROC_FS.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2005-12-01 10:42:42 +01:00 committed by Jaroslav Kysela
parent 7cd01dd840
commit e28563cceb
9 changed files with 193 additions and 124 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
include/sound/info.h
View File

@ -87,8 +87,6 @@ struct snd_info_entry {
struct semaphore access;
};
int snd_info_check_reserved_words(const char *str);
#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS)
int snd_info_minor_register(void);
int snd_info_minor_unregister(void);
@ -142,6 +140,7 @@ static inline void snd_info_set_text_ops(struct snd_info_entry *entry,
entry->c.text.read = read;
}
int snd_info_check_reserved_words(const char *str);
#else
@ -164,8 +163,14 @@ static inline int snd_info_card_free(struct snd_card * card) { return 0; }
static inline int snd_info_register(struct snd_info_entry * entry) { return 0; }
static inline int snd_info_unregister(struct snd_info_entry * entry) { return 0; }
#define snd_card_proc_new(card,name,entryp) 0 /* always success */
#define snd_info_set_text_ops(entry,private_data,read_size,read) /*NOP*/
static inline int snd_card_proc_new(struct snd_card *card, const char *name,
struct snd_info_entry **entryp) { return -EINVAL; }
static inline void snd_info_set_text_ops(struct snd_info_entry *entry __attribute__((unused)),
void *private_data,
long read_size,
void (*read)(struct snd_info_entry *, struct snd_info_buffer *)) {}
static inline int snd_info_check_reserved_words(const char *str) { return 1; }
#endif

33
sound/core/hwdep.c
View File

@ -458,6 +458,7 @@ static int snd_hwdep_dev_unregister(struct snd_device *device)
return snd_hwdep_free(hwdep);
}
#ifdef CONFIG_PROC_FS
/*
* Info interface
*/
@ -477,13 +478,9 @@ static void snd_hwdep_proc_read(struct snd_info_entry *entry,
up(&register_mutex);
}
/*
* ENTRY functions
*/
static struct snd_info_entry *snd_hwdep_proc_entry;
static struct snd_info_entry *snd_hwdep_proc_entry = NULL;
static int __init alsa_hwdep_init(void)
static void __init snd_hwdep_proc_init(void)
{
struct snd_info_entry *entry;
@ -496,6 +493,25 @@ static int __init alsa_hwdep_init(void)
}
}
snd_hwdep_proc_entry = entry;
}
static void __exit snd_hwdep_proc_done(void)
{
snd_info_unregister(snd_hwdep_proc_entry);
}
#else /* !CONFIG_PROC_FS */
#define snd_hwdep_proc_init()
#define snd_hwdep_proc_done()
#endif /* CONFIG_PROC_FS */
/*
* ENTRY functions
*/
static int __init alsa_hwdep_init(void)
{
snd_hwdep_proc_init();
snd_ctl_register_ioctl(snd_hwdep_control_ioctl);
snd_ctl_register_ioctl_compat(snd_hwdep_control_ioctl);
return 0;
@ -505,10 +521,7 @@ static void __exit alsa_hwdep_exit(void)
{
snd_ctl_unregister_ioctl(snd_hwdep_control_ioctl);
snd_ctl_unregister_ioctl_compat(snd_hwdep_control_ioctl);
if (snd_hwdep_proc_entry) {
snd_info_unregister(snd_hwdep_proc_entry);
snd_hwdep_proc_entry = NULL;
}
snd_hwdep_proc_done();
}
module_init(alsa_hwdep_init)

13
sound/core/info.c
View File

@ -37,6 +37,8 @@
*
*/
#ifdef CONFIG_PROC_FS
int snd_info_check_reserved_words(const char *str)
{
static char *reserved[] =
@ -66,8 +68,6 @@ int snd_info_check_reserved_words(const char *str)
return 1;
}
#ifdef CONFIG_PROC_FS
static DECLARE_MUTEX(info_mutex);
struct snd_info_private_data {
@ -580,12 +580,10 @@ int __exit snd_info_done(void)
snd_info_version_done();
if (snd_proc_root) {
#if defined(CONFIG_SND_SEQUENCER) || defined(CONFIG_SND_SEQUENCER_MODULE)
if (snd_seq_root)
snd_info_unregister(snd_seq_root);
snd_info_unregister(snd_seq_root);
#endif
#ifdef CONFIG_SND_OSSEMUL
if (snd_oss_root)
snd_info_unregister(snd_oss_root);
snd_info_unregister(snd_oss_root);
#endif
snd_remove_proc_entry(&proc_root, snd_proc_root);
}
@ -937,7 +935,8 @@ int snd_info_unregister(struct snd_info_entry * entry)
{
struct proc_dir_entry *root;
snd_assert(entry != NULL, return -ENXIO);
if (! entry)
return 0;
snd_assert(entry->p != NULL, return -ENXIO);
root = entry->parent == NULL ? snd_proc_root : entry->parent->p;
snd_assert(root, return -ENXIO);

59
sound/core/init.c
View File

@ -46,12 +46,39 @@ DEFINE_RWLOCK(snd_card_rwlock);
int (*snd_mixer_oss_notify_callback)(struct snd_card *card, int free_flag);
#endif
#ifdef CONFIG_PROC_FS
static void snd_card_id_read(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
snd_iprintf(buffer, "%s\n", entry->card->id);
}
static inline int init_info_for_card(struct snd_card *card)
{
int err;
struct snd_info_entry *entry;
if ((err = snd_info_card_register(card)) < 0) {
snd_printd("unable to create card info\n");
return err;
}
if ((entry = snd_info_create_card_entry(card, "id", card->proc_root)) == NULL) {
snd_printd("unable to create card entry\n");
return err;
}
entry->c.text.read_size = PAGE_SIZE;
entry->c.text.read = snd_card_id_read;
if (snd_info_register(entry) < 0) {
snd_info_free_entry(entry);
entry = NULL;
}
card->proc_id = entry;
return 0;
}
#else /* !CONFIG_PROC_FS */
#define init_info_for_card(card)
#endif
static void snd_card_free_thread(void * __card);
/**
@ -273,8 +300,7 @@ int snd_card_free(struct snd_card *card)
}
if (card->private_free)
card->private_free(card);
if (card->proc_id)
snd_info_unregister(card->proc_id);
snd_info_unregister(card->proc_id);
if (snd_info_card_free(card) < 0) {
snd_printk(KERN_WARNING "unable to free card info\n");
/* Not fatal error */
@ -414,7 +440,6 @@ static void choose_default_id(struct snd_card *card)
int snd_card_register(struct snd_card *card)
{
int err;
struct snd_info_entry *entry;
snd_assert(card != NULL, return -EINVAL);
if ((err = snd_device_register_all(card)) < 0)
@ -429,22 +454,7 @@ int snd_card_register(struct snd_card *card)
choose_default_id(card);
snd_cards[card->number] = card;
write_unlock(&snd_card_rwlock);
if ((err = snd_info_card_register(card)) < 0) {
snd_printd("unable to create card info\n");
goto __skip_info;
}
if ((entry = snd_info_create_card_entry(card, "id", card->proc_root)) == NULL) {
snd_printd("unable to create card entry\n");
goto __skip_info;
}
entry->c.text.read_size = PAGE_SIZE;
entry->c.text.read = snd_card_id_read;
if (snd_info_register(entry) < 0) {
snd_info_free_entry(entry);
entry = NULL;
}
card->proc_id = entry;
__skip_info:
init_info_for_card(card);
#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE)
if (snd_mixer_oss_notify_callback)
snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_REGISTER);
@ -452,6 +462,7 @@ int snd_card_register(struct snd_card *card)
return 0;
}
#ifdef CONFIG_PROC_FS
static struct snd_info_entry *snd_card_info_entry = NULL;
static void snd_card_info_read(struct snd_info_entry *entry,
@ -478,7 +489,7 @@ static void snd_card_info_read(struct snd_info_entry *entry,
snd_iprintf(buffer, "--- no soundcards ---\n");
}
#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS)
#ifdef CONFIG_SND_OSSEMUL
void snd_card_info_read_oss(struct snd_info_buffer *buffer)
{
@ -550,15 +561,15 @@ int __init snd_card_info_init(void)
int __exit snd_card_info_done(void)
{
if (snd_card_info_entry)
snd_info_unregister(snd_card_info_entry);
snd_info_unregister(snd_card_info_entry);
#ifdef MODULE
if (snd_card_module_info_entry)
snd_info_unregister(snd_card_module_info_entry);
snd_info_unregister(snd_card_module_info_entry);
#endif
return 0;
}
#endif /* CONFIG_PROC_FS */
/**
* snd_component_add - add a component string
* @card: soundcard structure

104
sound/core/pcm.c
View File

@ -151,30 +151,6 @@ static int snd_pcm_control_ioctl(struct snd_card *card,
#define FORMAT(v) [SNDRV_PCM_FORMAT_##v] = #v
#define SUBFORMAT(v) [SNDRV_PCM_SUBFORMAT_##v] = #v
static char *snd_pcm_stream_names[] = {
STREAM(PLAYBACK),
STREAM(CAPTURE),
};
static char *snd_pcm_state_names[] = {
STATE(OPEN),
STATE(SETUP),
STATE(PREPARED),
STATE(RUNNING),
STATE(XRUN),
STATE(DRAINING),
STATE(PAUSED),
STATE(SUSPENDED),
};
static char *snd_pcm_access_names[] = {
ACCESS(MMAP_INTERLEAVED),
ACCESS(MMAP_NONINTERLEAVED),
ACCESS(MMAP_COMPLEX),
ACCESS(RW_INTERLEAVED),
ACCESS(RW_NONINTERLEAVED),
};
static char *snd_pcm_format_names[] = {
FORMAT(S8),
FORMAT(U8),
@ -216,6 +192,36 @@ static char *snd_pcm_format_names[] = {
FORMAT(U18_3BE),
};
const char *snd_pcm_format_name(snd_pcm_format_t format)
{
return snd_pcm_format_names[format];
}
#ifdef CONFIG_PROC_FS
static char *snd_pcm_stream_names[] = {
STREAM(PLAYBACK),
STREAM(CAPTURE),
};
static char *snd_pcm_state_names[] = {
STATE(OPEN),
STATE(SETUP),
STATE(PREPARED),
STATE(RUNNING),
STATE(XRUN),
STATE(DRAINING),
STATE(PAUSED),
STATE(SUSPENDED),
};
static char *snd_pcm_access_names[] = {
ACCESS(MMAP_INTERLEAVED),
ACCESS(MMAP_NONINTERLEAVED),
ACCESS(MMAP_COMPLEX),
ACCESS(RW_INTERLEAVED),
ACCESS(RW_NONINTERLEAVED),
};
static char *snd_pcm_subformat_names[] = {
SUBFORMAT(STD),
};
@ -236,11 +242,6 @@ static const char *snd_pcm_access_name(snd_pcm_access_t access)
return snd_pcm_access_names[access];
}
const char *snd_pcm_format_name(snd_pcm_format_t format)
{
return snd_pcm_format_names[format];
}
static const char *snd_pcm_subformat_name(snd_pcm_subformat_t subformat)
{
return snd_pcm_subformat_names[subformat];
@ -288,7 +289,6 @@ static const char *snd_pcm_oss_format_name(int format)
}
#endif
#ifdef CONFIG_PROC_FS
static void snd_pcm_proc_info_read(struct snd_pcm_substream *substream,
struct snd_info_buffer *buffer)
{
@ -431,7 +431,6 @@ static void snd_pcm_substream_proc_status_read(struct snd_info_entry *entry,
snd_iprintf(buffer, "hw_ptr : %ld\n", runtime->status->hw_ptr);
snd_iprintf(buffer, "appl_ptr : %ld\n", runtime->control->appl_ptr);
}
#endif
#ifdef CONFIG_SND_DEBUG
static void snd_pcm_xrun_debug_read(struct snd_info_entry *entry,
@ -596,6 +595,12 @@ static int snd_pcm_substream_proc_done(struct snd_pcm_substream *substream)
}
return 0;
}
#else /* !CONFIG_PROC_FS */
static inline int snd_pcm_stream_proc_init(struct snd_pcm_str *pstr) { return 0; }
static inline int snd_pcm_stream_proc_done(struct snd_pcm_str *pstr) { return 0; }
static inline int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream) { return 0; }
static inline int snd_pcm_substream_proc_done(struct snd_pcm_substream *substream) { return 0; }
#endif /* CONFIG_PROC_FS */
/**
* snd_pcm_new_stream - create a new PCM stream
@ -1013,6 +1018,7 @@ int snd_pcm_notify(struct snd_pcm_notify *notify, int nfree)
return 0;
}
#ifdef CONFIG_PROC_FS
/*
* Info interface
*/
@ -1039,18 +1045,12 @@ static void snd_pcm_proc_read(struct snd_info_entry *entry,
up(&register_mutex);
}
/*
* ENTRY functions
*/
static struct snd_info_entry *snd_pcm_proc_entry = NULL;
static int __init alsa_pcm_init(void)
static void snd_pcm_proc_init(void)
{
struct snd_info_entry *entry;
snd_ctl_register_ioctl(snd_pcm_control_ioctl);
snd_ctl_register_ioctl_compat(snd_pcm_control_ioctl);
if ((entry = snd_info_create_module_entry(THIS_MODULE, "pcm", NULL)) != NULL) {
snd_info_set_text_ops(entry, NULL, SNDRV_CARDS * SNDRV_PCM_DEVICES * 128,
snd_pcm_proc_read);
@ -1060,6 +1060,29 @@ static int __init alsa_pcm_init(void)
}
}
snd_pcm_proc_entry = entry;
}
static void snd_pcm_proc_done(void)
{
if (snd_pcm_proc_entry)
snd_info_unregister(snd_pcm_proc_entry);
}
#else /* !CONFIG_PROC_FS */
#define snd_pcm_proc_init()
#define snd_pcm_proc_done()
#endif /* CONFIG_PROC_FS */
/*
* ENTRY functions
*/
static int __init alsa_pcm_init(void)
{
snd_ctl_register_ioctl(snd_pcm_control_ioctl);
snd_ctl_register_ioctl_compat(snd_pcm_control_ioctl);
snd_pcm_proc_init();
return 0;
}
@ -1067,10 +1090,7 @@ static void __exit alsa_pcm_exit(void)
{
snd_ctl_unregister_ioctl(snd_pcm_control_ioctl);
snd_ctl_unregister_ioctl_compat(snd_pcm_control_ioctl);
if (snd_pcm_proc_entry) {
snd_info_unregister(snd_pcm_proc_entry);
snd_pcm_proc_entry = NULL;
}
snd_pcm_proc_done();
}
module_init(alsa_pcm_init)

39
sound/core/pcm_memory.c
View File

@ -100,10 +100,8 @@ static void snd_pcm_lib_preallocate_dma_free(struct snd_pcm_substream *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;
}
snd_info_unregister(substream->proc_prealloc_entry);
substream->proc_prealloc_entry = NULL;
return 0;
}
@ -126,6 +124,7 @@ int snd_pcm_lib_preallocate_free_for_all(struct snd_pcm *pcm)
return 0;
}
#ifdef CONFIG_PROC_FS
/*
* read callback for prealloc proc file
*
@ -185,20 +184,10 @@ static void snd_pcm_lib_preallocate_proc_write(struct snd_info_entry *entry,
}
}
/*
* 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)
static inline void preallocate_info_init(struct snd_pcm_substream *substream)
{
struct snd_info_entry *entry;
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;
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;
@ -212,6 +201,26 @@ static int snd_pcm_lib_preallocate_pages1(struct snd_pcm_substream *substream,
}
}
substream->proc_prealloc_entry = entry;
}
#else /* !CONFIG_PROC_FS */
#define preallocate_info_init(s)
#endif
/*
* 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;
}

2
sound/core/sound.c
View File

@ -320,6 +320,7 @@ int snd_unregister_device(int type, struct snd_card *card, int dev)
return 0;
}
#ifdef CONFIG_PROC_FS
/*
* INFO PART
*/
@ -396,6 +397,7 @@ int __exit snd_minor_info_done(void)
snd_info_unregister(snd_minor_info_entry);
return 0;
}
#endif /* CONFIG_PROC_FS */
/*
* INIT PART

6
sound/core/sound_oss.c
View File

@ -244,11 +244,9 @@ static void snd_minor_info_oss_read(struct snd_info_entry *entry,
up(&sound_oss_mutex);
}
#endif /* CONFIG_PROC_FS */
int __init snd_minor_info_oss_init(void)
{
#ifdef CONFIG_PROC_FS
struct snd_info_entry *entry;
entry = snd_info_create_module_entry(THIS_MODULE, "devices", snd_oss_root);
@ -261,17 +259,15 @@ int __init snd_minor_info_oss_init(void)
}
}
snd_minor_info_oss_entry = entry;
#endif
return 0;
}
int __exit snd_minor_info_oss_done(void)
{
#ifdef CONFIG_PROC_FS
if (snd_minor_info_oss_entry)
snd_info_unregister(snd_minor_info_oss_entry);
#endif
return 0;
}
#endif /* CONFIG_PROC_FS */
#endif /* CONFIG_SND_OSSEMUL */

48
sound/core/timer.c
View File

@ -1052,6 +1052,7 @@ static int snd_timer_register_system(void)
return snd_timer_global_register(timer);
}
#ifdef CONFIG_PROC_FS
/*
* Info interface
*/
@ -1107,6 +1108,33 @@ static void snd_timer_proc_read(struct snd_info_entry *entry,
up(&register_mutex);
}
static struct snd_info_entry *snd_timer_proc_entry = NULL;
static void __init snd_timer_proc_init(void)
{
struct snd_info_entry *entry;
entry = snd_info_create_module_entry(THIS_MODULE, "timers", NULL);
if (entry != NULL) {
entry->c.text.read_size = SNDRV_TIMER_DEVICES * 128;
entry->c.text.read = snd_timer_proc_read;
if (snd_info_register(entry) < 0) {
snd_info_free_entry(entry);
entry = NULL;
}
}
snd_timer_proc_entry = entry;
}
static void __exit snd_timer_proc_done(void)
{
snd_info_unregister(snd_timer_proc_entry);
}
#else /* !CONFIG_PROC_FS */
#define snd_timer_proc_init()
#define snd_timer_proc_done()
#endif
/*
* USER SPACE interface
*/
@ -1928,27 +1956,15 @@ static struct file_operations snd_timer_f_ops =
* ENTRY functions
*/
static struct snd_info_entry *snd_timer_proc_entry = NULL;
static int __init alsa_timer_init(void)
{
int err;
struct snd_info_entry *entry;
#ifdef SNDRV_OSS_INFO_DEV_TIMERS
snd_oss_info_register(SNDRV_OSS_INFO_DEV_TIMERS, SNDRV_CARDS - 1,
"system timer");
#endif
entry = snd_info_create_module_entry(THIS_MODULE, "timers", NULL);
if (entry != NULL) {
entry->c.text.read_size = SNDRV_TIMER_DEVICES * 128;
entry->c.text.read = snd_timer_proc_read;
if (snd_info_register(entry) < 0) {
snd_info_free_entry(entry);
entry = NULL;
}
}
snd_timer_proc_entry = entry;
if ((err = snd_timer_register_system()) < 0)
snd_printk(KERN_ERR "unable to register system timer (%i)\n",
err);
@ -1956,6 +1972,7 @@ static int __init alsa_timer_init(void)
&snd_timer_f_ops, NULL, "timer")) < 0)
snd_printk(KERN_ERR "unable to register timer device (%i)\n",
err);
snd_timer_proc_init();
return 0;
}
@ -1969,10 +1986,7 @@ static void __exit alsa_timer_exit(void)
struct snd_timer *timer = list_entry(p, struct snd_timer, device_list);
snd_timer_unregister(timer);
}
if (snd_timer_proc_entry) {
snd_info_unregister(snd_timer_proc_entry);
snd_timer_proc_entry = NULL;
}
snd_timer_proc_done();
#ifdef SNDRV_OSS_INFO_DEV_TIMERS
snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_TIMERS, SNDRV_CARDS - 1);
#endif