[ALSA] caiaq - add control API and more input features

 - added support for all input controllers on Native Instrument's 'Kore
   controller'.
 - added ALSA controls to switch LEDs on 'RigKontrol 2', 'RigKontrol3',
   'Audio Kontrol 1' and 'Kore controller'.
 - added ALSA controls to switch input mode, software lock and ground
   lift features on 'Audio 8 DJ'.

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

1 files changed, 9 insertions, 2 deletions

diff --git a/sound/usb/caiaq/caiaq-device.h b/sound/usb/caiaq/caiaq-device.h
index 685761279f1a..310b10ebb605 100644
--- a/sound/usb/caiaq/caiaq-device.h
+++ b/sound/usb/caiaq/caiaq-device.h
@@ -35,6 +35,7 @@
 #define EP1_CMD_MIDI_WRITE      0x7
 #define EP1_CMD_AUDIO_PARAMS    0x9
 #define EP1_CMD_AUTO_MSG        0xb
+#define EP1_CMD_DIMM_LEDS       0xc
 
 struct caiaq_device_spec {
         unsigned short fw_version;
@@ -90,11 +91,14 @@ struct snd_usb_caiaqdev {
         struct snd_pcm_substream *sub_playback[MAX_STREAMS];
         struct snd_pcm_substream *sub_capture[MAX_STREAMS];
 
+        /* Controls */
+        unsigned char control_state[64];
+
         /* Linux input */
 #ifdef CONFIG_SND_USB_CAIAQ_INPUT
         struct input_dev *input_dev;
         char phys[64];                  /* physical device path */
-        unsigned short keycode[10];
+        unsigned short keycode[64];
 #endif
 
         /* ALSA */
@@ -114,6 +118,9 @@ struct snd_usb_caiaq_cb_info {
 
 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);
-
+int snd_usb_caiaq_send_command(struct snd_usb_caiaqdev *dev,
+                               unsigned char command,
+                               const unsigned char *buffer,
+                               int len);
 
 #endif /* CAIAQ_DEVICE_H */