[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 000000000000..088d5ec241f3
--- /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 */