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

#ifndef __USBMIXER_H
#define __USBMIXER_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_info **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];

	u8 audigy2nx_leds[3];
	u8 xonar_u1_status;
};

#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,
};

struct usb_mixer_elem_info {
	struct usb_mixer_interface *mixer;
	struct usb_mixer_elem_info *next_id_elem; /* list of controls with same id */
	struct snd_ctl_elem_id *elem_id;
	unsigned int id;
	unsigned int control;	/* CS or ICN (high byte) */
	unsigned int cmask; /* channel mask bitmap: 0 = master */
	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;
};

int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
			 int ignore_error);
void snd_usb_mixer_disconnect(struct list_head *p);

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);
void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer);
int snd_usb_mixer_activate(struct usb_mixer_interface *mixer);

int snd_usb_mixer_add_control(struct usb_mixer_interface *mixer,
			      struct snd_kcontrol *kctl);

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

#endif /* __USBMIXER_H */
Commit	Line	Data
3e1aebef DM	1	#ifndef __USBMIXER_H
	2	#define __USBMIXER_H
	3
7b1eda22 DM	4	struct usb_mixer_interface {
7b1eda22 DM	5	struct snd_usb_audio *chip;
1faa5d07	6	struct usb_host_interface *hostif;
7b1eda22 DM	7	struct list_head list;
	8	unsigned int ignore_ctl_error;
	9	struct urb *urb;
	10	/* array[MAX_ID_ELEMS], indexed by unit id */
	11	struct usb_mixer_elem_info **id_elems;
	12
23caaf19 DM	13	/* the usb audio specification version this interface complies to */
	14	int protocol;
	15
7b1eda22 DM	16	/* Sound Blaster remote control stuff */
	17	const struct rc_config *rc_cfg;
	18	u32 rc_code;
	19	wait_queue_head_t rc_waitq;
	20	struct urb *rc_urb;
	21	struct usb_ctrlrequest *rc_setup_packet;
	22	u8 rc_buffer[6];
	23
	24	u8 audigy2nx_leds[3];
	25	u8 xonar_u1_status;
	26	};
	27
9e38658f DM	28	#define MAX_CHANNELS 16 /* max logical channels */
	29
	30	enum {
	31	USB_MIXER_BOOLEAN,
	32	USB_MIXER_INV_BOOLEAN,
	33	USB_MIXER_S8,
	34	USB_MIXER_U8,
	35	USB_MIXER_S16,
	36	USB_MIXER_U16,
	37	};
7b1eda22 DM	38
	39	struct usb_mixer_elem_info {
	40	struct usb_mixer_interface *mixer;
	41	struct usb_mixer_elem_info next_id_elem; / list of controls with same id */
	42	struct snd_ctl_elem_id *elem_id;
	43	unsigned int id;
	44	unsigned int control; /* CS or ICN (high byte) */
	45	unsigned int cmask; /* channel mask bitmap: 0 = master */
a6a33259 DM	46	unsigned int ch_readonly;
a6a33259 DM	47	unsigned int master_readonly;
7b1eda22 DM	48	int channels;
	49	int val_type;
	50	int min, max, res;
	51	int dBmin, dBmax;
	52	int cached;
	53	int cache_val[MAX_CHANNELS];
	54	u8 initialized;
	55	};
	56
3e1aebef DM	57	int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
	58	int ignore_error);
	59	void snd_usb_mixer_disconnect(struct list_head *p);
	60
7b1eda22 DM	61	void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid);
	62
	63	int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval,
	64	int request, int validx, int value_set);
edf7de31 ON	65	void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer);
edf7de31 ON	66	int snd_usb_mixer_activate(struct usb_mixer_interface *mixer);
3e1aebef	67
ef9d5970 DM	68	int snd_usb_mixer_add_control(struct usb_mixer_interface *mixer,
	69	struct snd_kcontrol *kctl);
	70
285de9c0 FH	71	int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag,
	72	unsigned int size, unsigned int __user *_tlv);
	73
3e1aebef	74	#endif /* __USBMIXER_H */