patch-2.3.20 linux/drivers/usb/audio.h

• Lines: 117
• Date: Thu Oct 7 10:17:09 1999
• Orig file: v2.3.19/linux/drivers/usb/audio.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.19/linux/drivers/usb/audio.h linux/drivers/usb/audio.h
@@ -0,0 +1,116 @@
+#define USB_DT_CS_DEVICE                0x21
+#define USB_DT_CS_CONFIG                0x22
+#define USB_DT_CS_STRING                0x23
+#define USB_DT_CS_INTERFACE             0x24
+#define USB_DT_CS_ENDPOINT              0x25
+
+#define CS_AUDIO_UNDEFINED		0x20
+#define CS_AUDIO_DEVICE			0x21
+#define CS_AUDIO_CONFIGURATION		0x22
+#define CS_AUDIO_STRING			0x23
+#define CS_AUDIO_INTERFACE		0x24
+#define CS_AUDIO_ENDPOINT		0x25
+
+#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 MAX_CHAN			9
+#define MAX_FREQ			16
+#define MAX_IFACE			8
+#define MAX_FORMAT			8
+#define MAX_ALT				8
+
+struct usb_audio_terminal
+{	
+	u8	flags;
+	u8	assoc;
+	u16	type;			/* Mic etc */
+	u8	channels;
+	u8	source;
+	u16	chancfg;
+};
+
+struct usb_audio_format
+{
+	u8	type;
+	u8	channels;
+	u8	num_freq;
+	u8	sfz;
+	u8	bits;
+	u16	freq[MAX_FREQ];
+};
+
+struct usb_audio_interface
+{
+	u8	terminal;
+	u8	delay;
+	u16	num_formats;
+	u16	format_type;
+	u8	flags;
+	u8	idleconf;	/* Idle config */
+#define AU_IFACE_FOUND	1
+	struct  usb_audio_format format[MAX_FORMAT];
+};
+
+struct usb_audio_device
+{
+	struct list_head list;
+	u8	mixer;
+	u8	selector;
+	void	*irq_handle;
+	u8	num_channels;
+	u8	num_dsp_iface;
+	u8	channel_map[MAX_CHAN];
+	struct usb_audio_terminal terminal[MAX_CHAN];
+	struct usb_audio_interface interface[MAX_IFACE][MAX_ALT];
+};
+
+
+
+/* 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
+
+/* Feature Unit Control Selectors */
+
+#define MUTE_CONTROL               0x01
+#define VOLUME_CONTROL             0x02
+#define BASS_CONTROL               0x03
+#define MID_CONTROL                0x04
+#define TREBLE_CONTROL             0x05
+#define GRAPHIC_EQUALIZER_CONTROL  0x06
+#define AUTOMATIC_GAIN_CONTROL     0x07
+#define DELAY_CONTROL              0x08
+#define BASS_BOOST_CONTROL         0x09
+#define LOUDNESS_CONTROL           0x0a
+
+/* Endpoint Control Selectors */
+
+#define SAMPLING_FREQ_CONTROL      0x01
+#define PITCH_CONTROL              0x02