[ALSA] Add Native Instrument usb audio device support

Add snd-usb-caiaq driver to support caiaq usb-audio devices from
Native Instrument:
	* Native Instruments RigKontrol2
	* Native Instruments Kore Controller
	* Native Instruments Audio Kontrol 1
	* Native Instruments Audio 8 DJ

Signed-off-by: Daniel Mack <daniel@caiaq.org>
Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 116 insertions, 0 deletions

diff --git a/sound/usb/caiaq/caiaq-device.h b/sound/usb/caiaq/caiaq-device.h
new file mode 100644
index 00000000000..088d5ec241f
--- /dev/null
+++ b/sound/usb/caiaq/caiaq-device.h
@@ -0,0 +1,116 @@
+#ifndef CAIAQ_DEVICE_H
+#define CAIAQ_DEVICE_H
+
+#include "../usbaudio.h"
+
+#define USB_VID_NATIVEINSTRUMENTS 0x17cc
+
+#define USB_PID_RIGKONTROL2	0x1969
+#define USB_PID_KORECONTROLLER 	0x4711
+#define USB_PID_AK1		0x0815
+#define USB_PID_AUDIO8DJ	0x1978
+
+#define EP1_BUFSIZE 64
+#define CAIAQ_USB_STR_LEN 0xff
+#define MAX_STREAMS 32
+
+//#define	SND_USB_CAIAQ_DEBUG
+
+#define MODNAME "snd-usb-caiaq"
+#define log(x...) snd_printk(KERN_WARNING MODNAME" log: " x)
+
+#ifdef SND_USB_CAIAQ_DEBUG
+#define debug(x...) snd_printk(KERN_WARNING MODNAME " debug: " x)
+#else
+#define debug(x...) do { } while(0)
+#endif
+
+#define EP1_CMD_GET_DEVICE_INFO	0x1
+#define EP1_CMD_READ_ERP	0x2
+#define EP1_CMD_READ_ANALOG	0x3
+#define EP1_CMD_READ_IO		0x4
+#define EP1_CMD_WRITE_IO	0x5
+#define EP1_CMD_MIDI_READ	0x6
+#define EP1_CMD_MIDI_WRITE	0x7
+#define EP1_CMD_AUDIO_PARAMS	0x9
+#define EP1_CMD_AUTO_MSG	0xb
+
+struct caiaq_device_spec {
+	unsigned short fw_version;
+	unsigned char hw_subtype;
+	unsigned char num_erp;
+	unsigned char num_analog_in;
+	unsigned char num_digital_in;
+	unsigned char num_digital_out;
+	unsigned char num_analog_audio_out;
+	unsigned char num_analog_audio_in;
+	unsigned char num_digital_audio_out;
+	unsigned char num_digital_audio_in;
+	unsigned char num_midi_out;
+	unsigned char num_midi_in;
+	unsigned char data_alignment;
+} __attribute__ ((packed));
+
+struct snd_usb_caiaq_cb_info;
+
+struct snd_usb_caiaqdev {
+	struct snd_usb_audio chip;
+
+	struct urb ep1_in_urb;
+	struct urb midi_out_urb;
+	struct urb **data_urbs_in;
+	struct urb **data_urbs_out;
+	struct snd_usb_caiaq_cb_info *data_cb_info;
+	
+	unsigned char ep1_in_buf[EP1_BUFSIZE];
+	unsigned char ep1_out_buf[EP1_BUFSIZE];
+	unsigned char midi_out_buf[EP1_BUFSIZE];
+
+	struct caiaq_device_spec spec;
+	spinlock_t spinlock;
+	wait_queue_head_t ep1_wait_queue;
+	wait_queue_head_t prepare_wait_queue;
+	int spec_received, audio_parm_answer;
+	
+	char vendor_name[CAIAQ_USB_STR_LEN];
+	char product_name[CAIAQ_USB_STR_LEN];
+	char serial[CAIAQ_USB_STR_LEN];
+
+	int n_streams, n_audio_in, n_audio_out;
+	int streaming, first_packet, output_running;
+	int audio_in_buf_pos[MAX_STREAMS];
+	int audio_out_buf_pos[MAX_STREAMS];
+	int period_in_count[MAX_STREAMS];
+	int period_out_count[MAX_STREAMS];
+	int input_panic, output_panic;
+	char *audio_in_buf, *audio_out_buf;
+	unsigned int samplerates;
+
+	struct snd_pcm_substream *sub_playback[MAX_STREAMS];
+	struct snd_pcm_substream *sub_capture[MAX_STREAMS];
+
+	/* Linux input */
+#ifdef CONFIG_SND_USB_CAIAQ_INPUT
+	struct input_dev *input_dev;
+#endif
+	
+	/* ALSA */
+	struct snd_pcm *pcm;
+	struct snd_pcm_hardware pcm_info;
+	struct snd_rawmidi *rmidi;
+	struct snd_rawmidi_substream *midi_receive_substream;
+	struct snd_rawmidi_substream *midi_out_substream;
+};
+
+struct snd_usb_caiaq_cb_info {
+	struct snd_usb_caiaqdev *dev;
+	int index;
+};
+
+#define caiaqdev(c) ((struct snd_usb_caiaqdev*)(c)->private_data)
+
+int snd_usb_caiaq_set_audio_params (struct snd_usb_caiaqdev *dev, int rate, int depth, int bbp);
+int snd_usb_caiaq_set_auto_msg (struct snd_usb_caiaqdev *dev, int digital, int analog, int erp);
+
+
+#endif /* CAIAQ_DEVICE_H */