[linux-block.git] / sound / usb / usbaudio.h

#ifndef __USBAUDIO_H
#define __USBAUDIO_H
/*
 *   (Tentative) USB Audio Driver for ALSA
 *
 *   Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
 *
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */


/*
 */

#define USB_SUBCLASS_AUDIO_CONTROL	0x01
#define USB_SUBCLASS_AUDIO_STREAMING	0x02
#define USB_SUBCLASS_MIDI_STREAMING	0x03
#define USB_SUBCLASS_VENDOR_SPEC	0xff

#define HEADER				0x01
#define INPUT_TERMINAL			0x02
#define OUTPUT_TERMINAL			0x03
#define MIXER_UNIT			0x04
#define SELECTOR_UNIT			0x05
#define FEATURE_UNIT			0x06
#define PROCESSING_UNIT			0x07
#define EXTENSION_UNIT			0x08

#define AS_GENERAL			0x01
#define FORMAT_TYPE			0x02
#define FORMAT_SPECIFIC			0x03

#define EP_GENERAL			0x01

#define MS_GENERAL			0x01
#define MIDI_IN_JACK			0x02
#define MIDI_OUT_JACK			0x03

/* endpoint attributes */
#define EP_ATTR_MASK			0x0c
#define EP_ATTR_ASYNC			0x04
#define EP_ATTR_ADAPTIVE		0x08
#define EP_ATTR_SYNC			0x0c

/* cs endpoint attributes */
#define EP_CS_ATTR_SAMPLE_RATE		0x01
#define EP_CS_ATTR_PITCH_CONTROL	0x02
#define EP_CS_ATTR_FILL_MAX		0x80

/* Audio Class specific Request Codes */

#define SET_CUR    0x01
#define GET_CUR    0x81
#define SET_MIN    0x02
#define GET_MIN    0x82
#define SET_MAX    0x03
#define GET_MAX    0x83
#define SET_RES    0x04
#define GET_RES    0x84
#define SET_MEM    0x05
#define GET_MEM    0x85
#define GET_STAT   0xff

/* Terminal Control Selectors */

#define COPY_PROTECT_CONTROL       0x01

/* Endpoint Control Selectors */

#define SAMPLING_FREQ_CONTROL      0x01
#define PITCH_CONTROL              0x02

/* Format Types */
#define USB_FORMAT_TYPE_I	0x01
#define USB_FORMAT_TYPE_II	0x02
#define USB_FORMAT_TYPE_III	0x03

/* type I */
#define USB_AUDIO_FORMAT_PCM	0x01
#define USB_AUDIO_FORMAT_PCM8	0x02
#define USB_AUDIO_FORMAT_IEEE_FLOAT	0x03
#define USB_AUDIO_FORMAT_ALAW	0x04
#define USB_AUDIO_FORMAT_MU_LAW	0x05

/* type II */
#define USB_AUDIO_FORMAT_MPEG	0x1001
#define USB_AUDIO_FORMAT_AC3	0x1002

/* type III */
#define USB_AUDIO_FORMAT_IEC1937_AC3	0x2001
#define USB_AUDIO_FORMAT_IEC1937_MPEG1_LAYER1	0x2002
#define USB_AUDIO_FORMAT_IEC1937_MPEG2_NOEXT	0x2003
#define USB_AUDIO_FORMAT_IEC1937_MPEG2_EXT	0x2004
#define USB_AUDIO_FORMAT_IEC1937_MPEG2_LAYER1_LS	0x2005
#define USB_AUDIO_FORMAT_IEC1937_MPEG2_LAYER23_LS	0x2006


/* maximum number of endpoints per interface */
#define MIDI_MAX_ENDPOINTS 2

/* handling of USB vendor/product ID pairs as 32-bit numbers */
#define USB_ID(vendor, product) (((vendor) << 16) | (product))
#define USB_ID_VENDOR(id) ((id) >> 16)
#define USB_ID_PRODUCT(id) ((u16)(id))

/*
 */

struct snd_usb_audio {
	int index;
	struct usb_device *dev;
	struct snd_card *card;
	u32 usb_id;
	int shutdown;
	int num_interfaces;
	int num_suspended_intf;

	struct list_head pcm_list;	/* list of pcm streams */
	int pcm_devs;

	struct list_head midi_list;	/* list of midi interfaces */
	int next_midi_device;

	struct list_head mixer_list;	/* list of mixer interfaces */
};

/*
 * Information about devices with broken descriptors
 */

/* special values for .ifnum */
#define QUIRK_NO_INTERFACE		-2
#define QUIRK_ANY_INTERFACE		-1

enum quirk_type {
	QUIRK_IGNORE_INTERFACE,
	QUIRK_COMPOSITE,
	QUIRK_MIDI_STANDARD_INTERFACE,
	QUIRK_MIDI_FIXED_ENDPOINT,
	QUIRK_MIDI_YAMAHA,
	QUIRK_MIDI_MIDIMAN,
	QUIRK_MIDI_NOVATION,
	QUIRK_MIDI_RAW,
	QUIRK_MIDI_EMAGIC,
	QUIRK_MIDI_CME,
	QUIRK_MIDI_US122L,
	QUIRK_AUDIO_STANDARD_INTERFACE,
	QUIRK_AUDIO_FIXED_ENDPOINT,
	QUIRK_AUDIO_EDIROL_UA1000,
	QUIRK_AUDIO_EDIROL_UA101,
	QUIRK_AUDIO_EDIROL_UAXX,

	QUIRK_TYPE_COUNT
};

struct snd_usb_audio_quirk {
	const char *vendor_name;
	const char *product_name;
	int16_t ifnum;
	uint16_t type;
	const void *data;
};

/* data for QUIRK_MIDI_FIXED_ENDPOINT */
struct snd_usb_midi_endpoint_info {
	int8_t   out_ep;	/* ep number, 0 autodetect */
	uint8_t  out_interval;	/* interval for interrupt endpoints */
	int8_t   in_ep;	
	uint8_t  in_interval;
	uint16_t out_cables;	/* bitmask */
	uint16_t in_cables;	/* bitmask */
};

/* for QUIRK_MIDI_YAMAHA, data is NULL */

/* for QUIRK_MIDI_MIDIMAN, data points to a snd_usb_midi_endpoint_info
 * structure (out_cables and in_cables only) */

/* for QUIRK_COMPOSITE, data points to an array of snd_usb_audio_quirk
 * structures, terminated with .ifnum = -1 */

/* for QUIRK_AUDIO_FIXED_ENDPOINT, data points to an audioformat structure */

/* for QUIRK_AUDIO/MIDI_STANDARD_INTERFACE, data is NULL */

/* for QUIRK_AUDIO_EDIROL_UA700_UA25/UA1000, data is NULL */

/* for QUIRK_IGNORE_INTERFACE, data is NULL */

/* for QUIRK_MIDI_NOVATION and _RAW, data is NULL */

/* for QUIRK_MIDI_EMAGIC, data points to a snd_usb_midi_endpoint_info
 * structure (out_cables and in_cables only) */

/* for QUIRK_MIDI_CME, data is NULL */

/*
 */

#define combine_word(s)    ((*s) | ((unsigned int)(s)[1] << 8))
#define combine_triple(s)  (combine_word(s) | ((unsigned int)(s)[2] << 16))
#define combine_quad(s)    (combine_triple(s) | ((unsigned int)(s)[3] << 24))

unsigned int snd_usb_combine_bytes(unsigned char *bytes, int size);

void *snd_usb_find_desc(void *descstart, int desclen, void *after, u8 dtype);
void *snd_usb_find_csint_desc(void *descstart, int desclen, void *after, u8 dsubtype);

int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe,
		    __u8 request, __u8 requesttype, __u16 value, __u16 index,
		    void *data, __u16 size, int timeout);

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

int snd_usb_create_midi_interface(struct snd_usb_audio *chip, struct usb_interface *iface,
				  const struct snd_usb_audio_quirk *quirk);
void snd_usbmidi_input_stop(struct list_head* p);
void snd_usbmidi_input_start(struct list_head* p);
void snd_usbmidi_disconnect(struct list_head *p);

/*
 * retrieve usb_interface descriptor from the host interface
 * (conditional for compatibility with the older API)
 */
#ifndef get_iface_desc
#define get_iface_desc(iface)	(&(iface)->desc)
#define get_endpoint(alt,ep)	(&(alt)->endpoint[ep].desc)
#define get_ep_desc(ep)		(&(ep)->desc)
#define get_cfg_desc(cfg)	(&(cfg)->desc)
#endif

#ifndef snd_usb_get_speed
#define snd_usb_get_speed(dev) ((dev)->speed)
#endif

#endif /* __USBAUDIO_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef __USBAUDIO_H
	2	#define __USBAUDIO_H
	3	/*
	4	* (Tentative) USB Audio Driver for ALSA
	5	*
	6	* Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
	7	*
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License as published by
	11	* the Free Software Foundation; either version 2 of the License, or
	12	* (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	22	*/
	23
	24
	25	/*
	26	*/
	27
	28	#define USB_SUBCLASS_AUDIO_CONTROL 0x01
	29	#define USB_SUBCLASS_AUDIO_STREAMING 0x02
	30	#define USB_SUBCLASS_MIDI_STREAMING 0x03
	31	#define USB_SUBCLASS_VENDOR_SPEC 0xff
	32
1da177e4 LT	33	#define HEADER 0x01
	34	#define INPUT_TERMINAL 0x02
	35	#define OUTPUT_TERMINAL 0x03
	36	#define MIXER_UNIT 0x04
	37	#define SELECTOR_UNIT 0x05
	38	#define FEATURE_UNIT 0x06
	39	#define PROCESSING_UNIT 0x07
	40	#define EXTENSION_UNIT 0x08
	41
	42	#define AS_GENERAL 0x01
	43	#define FORMAT_TYPE 0x02
	44	#define FORMAT_SPECIFIC 0x03
	45
	46	#define EP_GENERAL 0x01
	47
	48	#define MS_GENERAL 0x01
	49	#define MIDI_IN_JACK 0x02
	50	#define MIDI_OUT_JACK 0x03
	51
	52	/* endpoint attributes */
	53	#define EP_ATTR_MASK 0x0c
	54	#define EP_ATTR_ASYNC 0x04
	55	#define EP_ATTR_ADAPTIVE 0x08
	56	#define EP_ATTR_SYNC 0x0c
	57
	58	/* cs endpoint attributes */
	59	#define EP_CS_ATTR_SAMPLE_RATE 0x01
	60	#define EP_CS_ATTR_PITCH_CONTROL 0x02
	61	#define EP_CS_ATTR_FILL_MAX 0x80
	62
	63	/* Audio Class specific Request Codes */
	64
	65	#define SET_CUR 0x01
	66	#define GET_CUR 0x81
	67	#define SET_MIN 0x02
	68	#define GET_MIN 0x82
	69	#define SET_MAX 0x03
	70	#define GET_MAX 0x83
	71	#define SET_RES 0x04
	72	#define GET_RES 0x84
	73	#define SET_MEM 0x05
	74	#define GET_MEM 0x85
	75	#define GET_STAT 0xff
	76
	77	/* Terminal Control Selectors */
	78
	79	#define COPY_PROTECT_CONTROL 0x01
	80
	81	/* Endpoint Control Selectors */
	82
	83	#define SAMPLING_FREQ_CONTROL 0x01
	84	#define PITCH_CONTROL 0x02
	85
	86	/* Format Types */
	87	#define USB_FORMAT_TYPE_I 0x01
	88	#define USB_FORMAT_TYPE_II 0x02
	89	#define USB_FORMAT_TYPE_III 0x03
	90
	91	/* type I */
	92	#define USB_AUDIO_FORMAT_PCM 0x01
	93	#define USB_AUDIO_FORMAT_PCM8 0x02
	94	#define USB_AUDIO_FORMAT_IEEE_FLOAT 0x03
	95	#define USB_AUDIO_FORMAT_ALAW 0x04
	96	#define USB_AUDIO_FORMAT_MU_LAW 0x05
97
98	/* type II */
99	#define USB_AUDIO_FORMAT_MPEG 0x1001
100	#define USB_AUDIO_FORMAT_AC3 0x1002
101
102	/* type III */
103	#define USB_AUDIO_FORMAT_IEC1937_AC3 0x2001
104	#define USB_AUDIO_FORMAT_IEC1937_MPEG1_LAYER1 0x2002
105	#define USB_AUDIO_FORMAT_IEC1937_MPEG2_NOEXT 0x2003
106	#define USB_AUDIO_FORMAT_IEC1937_MPEG2_EXT 0x2004
107	#define USB_AUDIO_FORMAT_IEC1937_MPEG2_LAYER1_LS 0x2005
108	#define USB_AUDIO_FORMAT_IEC1937_MPEG2_LAYER23_LS 0x2006
109
110
111	/* maximum number of endpoints per interface */
112	#define MIDI_MAX_ENDPOINTS 2
113
27d10f56 CL	114	/* handling of USB vendor/product ID pairs as 32-bit numbers */
	115	#define USB_ID(vendor, product) (((vendor) << 16) \| (product))
	116	#define USB_ID_VENDOR(id) ((id) >> 16)
	117	#define USB_ID_PRODUCT(id) ((u16)(id))
	118
1da177e4 LT	119	/*
	120	*/
	121
1da177e4 LT	122	struct snd_usb_audio {
	123	int index;
	124	struct usb_device *dev;
86e07d34	125	struct snd_card *card;
27d10f56	126	u32 usb_id;
1da177e4 LT	127	int shutdown;
1da177e4 LT	128	int num_interfaces;
f85bf29c	129	int num_suspended_intf;
1da177e4 LT	130
	131	struct list_head pcm_list; /* list of pcm streams */
	132	int pcm_devs;
	133
	134	struct list_head midi_list; /* list of midi interfaces */
	135	int next_midi_device;
	136
84957a8a	137	struct list_head mixer_list; /* list of mixer interfaces */
1da177e4 LT	138	};
	139
	140	/*
	141	* Information about devices with broken descriptors
	142	*/
	143
	144	/* special values for .ifnum */
	145	#define QUIRK_NO_INTERFACE -2
	146	#define QUIRK_ANY_INTERFACE -1
	147
854af957 CL	148	enum quirk_type {
	149	QUIRK_IGNORE_INTERFACE,
	150	QUIRK_COMPOSITE,
	151	QUIRK_MIDI_STANDARD_INTERFACE,
	152	QUIRK_MIDI_FIXED_ENDPOINT,
	153	QUIRK_MIDI_YAMAHA,
	154	QUIRK_MIDI_MIDIMAN,
	155	QUIRK_MIDI_NOVATION,
	156	QUIRK_MIDI_RAW,
	157	QUIRK_MIDI_EMAGIC,
cc7a59bd	158	QUIRK_MIDI_CME,
030a07e4	159	QUIRK_MIDI_US122L,
854af957 CL	160	QUIRK_AUDIO_STANDARD_INTERFACE,
854af957 CL	161	QUIRK_AUDIO_FIXED_ENDPOINT,
854af957	162	QUIRK_AUDIO_EDIROL_UA1000,
d0b0fac1	163	QUIRK_AUDIO_EDIROL_UA101,
310e0dc0	164	QUIRK_AUDIO_EDIROL_UAXX,
854af957 CL	165
	166	QUIRK_TYPE_COUNT
	167	};
1da177e4	168
1da177e4 LT	169	struct snd_usb_audio_quirk {
	170	const char *vendor_name;
	171	const char *product_name;
	172	int16_t ifnum;
854af957	173	uint16_t type;
1da177e4 LT	174	const void *data;
	175	};
	176
	177	/* data for QUIRK_MIDI_FIXED_ENDPOINT */
	178	struct snd_usb_midi_endpoint_info {
	179	int8_t out_ep; /* ep number, 0 autodetect */
	180	uint8_t out_interval; /* interval for interrupt endpoints */
	181	int8_t in_ep;
	182	uint8_t in_interval;
	183	uint16_t out_cables; /* bitmask */
	184	uint16_t in_cables; /* bitmask */
	185	};
	186
	187	/* for QUIRK_MIDI_YAMAHA, data is NULL */
	188
	189	/* for QUIRK_MIDI_MIDIMAN, data points to a snd_usb_midi_endpoint_info
	190	* structure (out_cables and in_cables only) */
	191
	192	/* for QUIRK_COMPOSITE, data points to an array of snd_usb_audio_quirk
	193	* structures, terminated with .ifnum = -1 */
	194
	195	/* for QUIRK_AUDIO_FIXED_ENDPOINT, data points to an audioformat structure */
	196
	197	/* for QUIRK_AUDIO/MIDI_STANDARD_INTERFACE, data is NULL */
	198
	199	/* for QUIRK_AUDIO_EDIROL_UA700_UA25/UA1000, data is NULL */
	200
	201	/* for QUIRK_IGNORE_INTERFACE, data is NULL */
	202
6155aff8	203	/* for QUIRK_MIDI_NOVATION and _RAW, data is NULL */
1da177e4 LT	204
	205	/* for QUIRK_MIDI_EMAGIC, data points to a snd_usb_midi_endpoint_info
	206	* structure (out_cables and in_cables only) */
	207
cc7a59bd	208	/* for QUIRK_MIDI_CME, data is NULL */
f38275fe	209
1da177e4 LT	210	/*
	211	*/
	212
	213	#define combine_word(s) ((*s) \| ((unsigned int)(s)[1] << 8))
	214	#define combine_triple(s) (combine_word(s) \| ((unsigned int)(s)[2] << 16))
	215	#define combine_quad(s) (combine_triple(s) \| ((unsigned int)(s)[3] << 24))
	216
	217	unsigned int snd_usb_combine_bytes(unsigned char *bytes, int size);
	218
	219	void snd_usb_find_desc(void descstart, int desclen, void *after, u8 dtype);
	220	void snd_usb_find_csint_desc(void descstart, int desclen, void *after, u8 dsubtype);
	221
86e07d34 TI	222	int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe,
	223	__u8 request, __u8 requesttype, __u16 value, __u16 index,
	224	void *data, __u16 size, int timeout);
1da177e4	225
7a9b8063 TI	226	int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
7a9b8063 TI	227	int ignore_error);
84957a8a	228	void snd_usb_mixer_disconnect(struct list_head *p);
1da177e4	229
86e07d34 TI	230	int snd_usb_create_midi_interface(struct snd_usb_audio chip, struct usb_interface iface,
86e07d34 TI	231	const struct snd_usb_audio_quirk *quirk);
1da177e4 LT	232	void snd_usbmidi_input_stop(struct list_head* p);
1da177e4 LT	233	void snd_usbmidi_input_start(struct list_head* p);
ee733397	234	void snd_usbmidi_disconnect(struct list_head *p);
1da177e4 LT	235
	236	/*
	237	* retrieve usb_interface descriptor from the host interface
	238	* (conditional for compatibility with the older API)
	239	*/
	240	#ifndef get_iface_desc
	241	#define get_iface_desc(iface) (&(iface)->desc)
	242	#define get_endpoint(alt,ep) (&(alt)->endpoint[ep].desc)
	243	#define get_ep_desc(ep) (&(ep)->desc)
	244	#define get_cfg_desc(cfg) (&(cfg)->desc)
	245	#endif
	246
1da177e4 LT	247	#ifndef snd_usb_get_speed
	248	#define snd_usb_get_speed(dev) ((dev)->speed)
	249	#endif
	250
	251	#endif /* __USBAUDIO_H */