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The highlevel control layer was rewritten and updated.

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Various fixes in mixer simple layer.
Added include/list.h (from the kernel tree).
This commit is contained in:
Jaroslav Kysela 2000-08-11 19:28:43 +00:00
parent b99128d8de
commit 82102903fe
7 changed files with 382 additions and 189 deletions
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38
include/control.h
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@ -54,10 +54,25 @@ int snd_ctl_read(snd_ctl_t *handle, snd_ctl_callbacks_t * callbacks);
* Highlevel API for controls
*/
#define LIST_HEAD_IS_DEFINED
struct list_head {
struct list_head *next, *prev;
};
typedef struct snd_hcontrol_list_stru snd_hcontrol_list_t;
typedef struct snd_hcontrol_stru snd_hcontrol_t;
struct snd_hcontrol_list_stru {
unsigned int controls_offset; /* W: first control ID to get */
unsigned int controls_request; /* W: count of control IDs to get */
unsigned int controls_count; /* R: count of available (set) controls */
unsigned int controls; /* R: count of all available controls */
snd_control_id_t *pids; /* W: IDs */
};
struct snd_hcontrol_stru {
snd_control_id_t id; /* must be always on top */
struct list_head list; /* links for list of all hcontrols */
int change: 1, /* structure change */
value: 1; /* value change */
/* event callbacks */
@ -71,18 +86,19 @@ struct snd_hcontrol_stru {
snd_ctl_t *handle; /* associated handle */
};
typedef int (snd_ctl_csort_t)(const snd_hcontrol_t *c1, const snd_hcontrol_t *c2);
typedef int (snd_ctl_ccallback_rebuild_t)(snd_ctl_t *handle, void *private_data);
typedef int (snd_ctl_ccallback_add_t)(snd_ctl_t *handle, void *private_data, snd_hcontrol_t *hcontrol);
typedef int (snd_ctl_hsort_t)(const snd_hcontrol_t *c1, const snd_hcontrol_t *c2);
typedef int (snd_ctl_hcallback_rebuild_t)(snd_ctl_t *handle, void *private_data);
typedef int (snd_ctl_hcallback_add_t)(snd_ctl_t *handle, void *private_data, snd_hcontrol_t *hcontrol);
int snd_ctl_cbuild(snd_ctl_t *handle, snd_ctl_csort_t *csort);
int snd_ctl_cfree(snd_ctl_t *handle);
snd_hcontrol_t *snd_ctl_cfind(snd_ctl_t *handle, snd_control_id_t *id);
int snd_ctl_csort(const snd_hcontrol_t *c1, const snd_hcontrol_t *c2);
int snd_ctl_cresort(snd_ctl_t *handle, snd_ctl_csort_t *csort);
int snd_ctl_ccallback_rebuild(snd_ctl_t *handle, snd_ctl_ccallback_rebuild_t *callback, void *private_data);
int snd_ctl_ccallback_add(snd_ctl_t *handle, snd_ctl_ccallback_add_t *callback, void *private_data);
int snd_ctl_cevent(snd_ctl_t *handle);
int snd_ctl_hbuild(snd_ctl_t *handle, snd_ctl_hsort_t *csort);
int snd_ctl_hfree(snd_ctl_t *handle);
snd_hcontrol_t *snd_ctl_hfind(snd_ctl_t *handle, snd_control_id_t *id);
int snd_ctl_hlist(snd_ctl_t *handle, snd_hcontrol_list_t *hlist);
int snd_ctl_hsort(const snd_hcontrol_t *c1, const snd_hcontrol_t *c2);
int snd_ctl_hresort(snd_ctl_t *handle, snd_ctl_hsort_t *csort);
int snd_ctl_hcallback_rebuild(snd_ctl_t *handle, snd_ctl_hcallback_rebuild_t *callback, void *private_data);
int snd_ctl_hcallback_add(snd_ctl_t *handle, snd_ctl_hcallback_add_t *callback, void *private_data);
int snd_ctl_hevent(snd_ctl_t *handle);
#ifdef __cplusplus
}