[linux-2.6-block.git] / sound / usb / mixer.h

#ifndef __USBMIXER_H
#define __USBMIXER_H

#include <sound/info.h>

struct usb_mixer_interface {
	struct snd_usb_audio *chip;
	struct usb_host_interface *hostif;
	struct list_head list;
	unsigned int ignore_ctl_error;
	struct urb *urb;
	/* array[MAX_ID_ELEMS], indexed by unit id */
	struct usb_mixer_elem_list **id_elems;

	/* the usb audio specification version this interface complies to */
	int protocol;

	/* Sound Blaster remote control stuff */
	const struct rc_config *rc_cfg;
	u32 rc_code;
	wait_queue_head_t rc_waitq;
	struct urb *rc_urb;
	struct usb_ctrlrequest *rc_setup_packet;
	u8 rc_buffer[6];
};

#define MAX_CHANNELS	16	/* max logical channels */

enum {
	USB_MIXER_BOOLEAN,
	USB_MIXER_INV_BOOLEAN,
	USB_MIXER_S8,
	USB_MIXER_U8,
	USB_MIXER_S16,
	USB_MIXER_U16,
	USB_MIXER_S32,
	USB_MIXER_U32,
};

typedef void (*usb_mixer_elem_dump_func_t)(struct snd_info_buffer *buffer,
					 struct usb_mixer_elem_list *list);
typedef int (*usb_mixer_elem_resume_func_t)(struct usb_mixer_elem_list *elem);

struct usb_mixer_elem_list {
	struct usb_mixer_interface *mixer;
	struct usb_mixer_elem_list *next_id_elem; /* list of controls with same id */
	struct snd_kcontrol *kctl;
	unsigned int id;
	usb_mixer_elem_dump_func_t dump;
	usb_mixer_elem_resume_func_t resume;
};

struct usb_mixer_elem_info {
	struct usb_mixer_elem_list head;
	unsigned int control;	/* CS or ICN (high byte) */
	unsigned int cmask; /* channel mask bitmap: 0 = master */
	unsigned int idx_off; /* Control index offset */
	unsigned int ch_readonly;
	unsigned int master_readonly;
	int channels;
	int val_type;
	int min, max, res;
	int dBmin, dBmax;
	int cached;
	int cache_val[MAX_CHANNELS];
	u8 initialized;
	void *private_data;
};

int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
			 int ignore_error);
void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer);

void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid);

int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval,
				int request, int validx, int value_set);

int snd_usb_mixer_add_control(struct usb_mixer_elem_list *list,
			      struct snd_kcontrol *kctl);

void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list,
				 struct usb_mixer_interface *mixer,
				 int unitid);

int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag,
			  unsigned int size, unsigned int __user *_tlv);

#ifdef CONFIG_PM
int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer);
int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume);
#endif

int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel,
                             int index, int value);

int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval,
                             int channel, int index, int *value);

extern void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl);

#endif /* __USBMIXER_H */
Commit	Line	Data
3e1aebef DM	1	#ifndef __USBMIXER_H
	2	#define __USBMIXER_H
	3
3360b84b TI	4	#include <sound/info.h>
3360b84b TI	5
7b1eda22 DM	6	struct usb_mixer_interface {
7b1eda22 DM	7	struct snd_usb_audio *chip;
1faa5d07	8	struct usb_host_interface *hostif;
7b1eda22 DM	9	struct list_head list;
	10	unsigned int ignore_ctl_error;
	11	struct urb *urb;
	12	/* array[MAX_ID_ELEMS], indexed by unit id */
3360b84b	13	struct usb_mixer_elem_list **id_elems;
7b1eda22	14
23caaf19 DM	15	/* the usb audio specification version this interface complies to */
	16	int protocol;
	17
7b1eda22 DM	18	/* Sound Blaster remote control stuff */
	19	const struct rc_config *rc_cfg;
	20	u32 rc_code;
	21	wait_queue_head_t rc_waitq;
	22	struct urb *rc_urb;
	23	struct usb_ctrlrequest *rc_setup_packet;
	24	u8 rc_buffer[6];
7b1eda22 DM	25	};
7b1eda22 DM	26
9e38658f DM	27	#define MAX_CHANNELS 16 /* max logical channels */
	28
	29	enum {
	30	USB_MIXER_BOOLEAN,
	31	USB_MIXER_INV_BOOLEAN,
	32	USB_MIXER_S8,
	33	USB_MIXER_U8,
	34	USB_MIXER_S16,
	35	USB_MIXER_U16,
bc18e31c JS	36	USB_MIXER_S32,
bc18e31c JS	37	USB_MIXER_U32,
9e38658f	38	};
7b1eda22	39
3360b84b TI	40	typedef void (usb_mixer_elem_dump_func_t)(struct snd_info_buffer buffer,
	41	struct usb_mixer_elem_list *list);
	42	typedef int (usb_mixer_elem_resume_func_t)(struct usb_mixer_elem_list elem);
	43
	44	struct usb_mixer_elem_list {
7b1eda22	45	struct usb_mixer_interface *mixer;
3360b84b TI	46	struct usb_mixer_elem_list next_id_elem; / list of controls with same id */
3360b84b TI	47	struct snd_kcontrol *kctl;
7b1eda22	48	unsigned int id;
3360b84b TI	49	usb_mixer_elem_dump_func_t dump;
	50	usb_mixer_elem_resume_func_t resume;
	51	};
	52
	53	struct usb_mixer_elem_info {
	54	struct usb_mixer_elem_list head;
7b1eda22 DM	55	unsigned int control; /* CS or ICN (high byte) */
7b1eda22 DM	56	unsigned int cmask; /* channel mask bitmap: 0 = master */
9f814105	57	unsigned int idx_off; /* Control index offset */
a6a33259 DM	58	unsigned int ch_readonly;
a6a33259 DM	59	unsigned int master_readonly;
7b1eda22 DM	60	int channels;
	61	int val_type;
	62	int min, max, res;
	63	int dBmin, dBmax;
	64	int cached;
	65	int cache_val[MAX_CHANNELS];
	66	u8 initialized;
f41d6049	67	void *private_data;
7b1eda22 DM	68	};
7b1eda22 DM	69
3e1aebef DM	70	int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
3e1aebef DM	71	int ignore_error);
a6cece9d	72	void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer);
3e1aebef	73
7b1eda22 DM	74	void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid);
	75
	76	int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval,
	77	int request, int validx, int value_set);
3e1aebef	78
3360b84b	79	int snd_usb_mixer_add_control(struct usb_mixer_elem_list *list,
ef9d5970 DM	80	struct snd_kcontrol *kctl);
ef9d5970 DM	81
3360b84b TI	82	void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list,
	83	struct usb_mixer_interface *mixer,
	84	int unitid);
	85
285de9c0 FH	86	int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag,
	87	unsigned int size, unsigned int __user *_tlv);
	88
400362f1 TI	89	#ifdef CONFIG_PM
	90	int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer);
	91	int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume);
	92	#endif
	93
eef90451 CA	94	int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel,
	95	int index, int value);
	96
	97	int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval,
	98	int channel, int index, int *value);
	99
	100	extern void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl);
	101
3e1aebef	102	#endif /* __USBMIXER_H */