Commit 8e3cd08e authored by Daniel Mack's avatar Daniel Mack Committed by Jaroslav Kysela
Browse files

[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: default avatarDaniel Mack <daniel@caiaq.de>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarJaroslav Kysela <perex@perex.cz>
parent e5f73e2a
......@@ -58,6 +58,7 @@ config SND_USB_CAIAQ_INPUT
* Native Instruments RigKontrol2
* Native Instruments RigKontrol3
* Native Instruments Kore Controller
* Native Instruments Audio Kontrol 1
endmenu
......
snd-usb-caiaq-objs := caiaq-device.o caiaq-audio.o caiaq-midi.o caiaq-input.o
snd-usb-caiaq-objs := caiaq-device.o caiaq-audio.o caiaq-midi.o caiaq-input.o caiaq-control.o
obj-$(CONFIG_SND_USB_CAIAQ) += snd-usb-caiaq.o
......@@ -27,9 +27,7 @@
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/rawmidi.h>
#ifdef CONFIG_SND_USB_CAIAQ_INPUT
#include <linux/input.h>
#endif
#include "caiaq-device.h"
#include "caiaq-audio.h"
......
/*
* Copyright (c) 2007 Daniel Mack
* friendly supported by NI.
*
* 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
*/
#include <sound/driver.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/usb.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/rawmidi.h>
#include <sound/control.h>
#include <linux/input.h>
#include "caiaq-device.h"
#include "caiaq-control.h"
#define CNT_INTVAL 0x10000
static int control_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
struct snd_usb_audio *chip = snd_kcontrol_chip(kcontrol);
struct snd_usb_caiaqdev *dev = caiaqdev(chip->card);
int pos = kcontrol->private_value;
int is_intval = pos & CNT_INTVAL;
uinfo->count = 1;
pos &= ~CNT_INTVAL;
if (dev->chip.usb_id ==
USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ)
&& (pos == 0)) {
/* current input mode of A8DJ */
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 2;
return 0;
}
if (is_intval) {
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 64;
} else {
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 1;
}
return 0;
}
static int control_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_usb_audio *chip = snd_kcontrol_chip(kcontrol);
struct snd_usb_caiaqdev *dev = caiaqdev(chip->card);
int pos = kcontrol->private_value;
if (pos & CNT_INTVAL)
ucontrol->value.integer.value[0]
= dev->control_state[pos & ~CNT_INTVAL];
else
ucontrol->value.integer.value[0]
= !!(dev->control_state[pos / 8] & (1 << pos % 8));
return 0;
}
static int control_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_usb_audio *chip = snd_kcontrol_chip(kcontrol);
struct snd_usb_caiaqdev *dev = caiaqdev(chip->card);
int pos = kcontrol->private_value;
if (pos & CNT_INTVAL) {
dev->control_state[pos & ~CNT_INTVAL]
= ucontrol->value.integer.value[0];
snd_usb_caiaq_send_command(dev, EP1_CMD_DIMM_LEDS,
dev->control_state, sizeof(dev->control_state));
} else {
if (ucontrol->value.integer.value[0])
dev->control_state[pos / 8] |= 1 << (pos % 8);
else
dev->control_state[pos / 8] &= ~(1 << (pos % 8));
snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO,
dev->control_state, sizeof(dev->control_state));
}
return 1;
}
static struct snd_kcontrol_new kcontrol_template __devinitdata = {
.iface = SNDRV_CTL_ELEM_IFACE_HWDEP,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.index = 0,
.info = control_info,
.get = control_get,
.put = control_put,
/* name and private_value filled later */
};
struct caiaq_controller {
char *name;
int index;
};
static struct caiaq_controller ak1_controller[] = {
{ "LED left", 2 },
{ "LED middle", 1 },
{ "LED right", 0 },
{ "LED ring", 3 }
};
static struct caiaq_controller rk2_controller[] = {
{ "LED 1", 5 },
{ "LED 2", 4 },
{ "LED 3", 3 },
{ "LED 4", 2 },
{ "LED 5", 1 },
{ "LED 6", 0 },
{ "LED pedal", 6 },
{ "LED 7seg_1b", 8 },
{ "LED 7seg_1c", 9 },
{ "LED 7seg_2a", 10 },
{ "LED 7seg_2b", 11 },
{ "LED 7seg_2c", 12 },
{ "LED 7seg_2d", 13 },
{ "LED 7seg_2e", 14 },
{ "LED 7seg_2f", 15 },
{ "LED 7seg_2g", 16 },
{ "LED 7seg_3a", 17 },
{ "LED 7seg_3b", 18 },
{ "LED 7seg_3c", 19 },
{ "LED 7seg_3d", 20 },
{ "LED 7seg_3e", 21 },
{ "LED 7seg_3f", 22 },
{ "LED 7seg_3g", 23 }
};
static struct caiaq_controller rk3_controller[] = {
{ "LED 7seg_1a", 0 + 0 },
{ "LED 7seg_1b", 0 + 1 },
{ "LED 7seg_1c", 0 + 2 },
{ "LED 7seg_1d", 0 + 3 },
{ "LED 7seg_1e", 0 + 4 },
{ "LED 7seg_1f", 0 + 5 },
{ "LED 7seg_1g", 0 + 6 },
{ "LED 7seg_1p", 0 + 7 },
{ "LED 7seg_2a", 8 + 0 },
{ "LED 7seg_2b", 8 + 1 },
{ "LED 7seg_2c", 8 + 2 },
{ "LED 7seg_2d", 8 + 3 },
{ "LED 7seg_2e", 8 + 4 },
{ "LED 7seg_2f", 8 + 5 },
{ "LED 7seg_2g", 8 + 6 },
{ "LED 7seg_2p", 8 + 7 },
{ "LED 7seg_3a", 16 + 0 },
{ "LED 7seg_3b", 16 + 1 },
{ "LED 7seg_3c", 16 + 2 },
{ "LED 7seg_3d", 16 + 3 },
{ "LED 7seg_3e", 16 + 4 },
{ "LED 7seg_3f", 16 + 5 },
{ "LED 7seg_3g", 16 + 6 },
{ "LED 7seg_3p", 16 + 7 },
{ "LED 7seg_4a", 24 + 0 },
{ "LED 7seg_4b", 24 + 1 },
{ "LED 7seg_4c", 24 + 2 },
{ "LED 7seg_4d", 24 + 3 },
{ "LED 7seg_4e", 24 + 4 },
{ "LED 7seg_4f", 24 + 5 },
{ "LED 7seg_4g", 24 + 6 },
{ "LED 7seg_4p", 24 + 7 },
{ "LED 1", 32 + 0 },
{ "LED 2", 32 + 1 },
{ "LED 3", 32 + 2 },
{ "LED 4", 32 + 3 },
{ "LED 5", 32 + 4 },
{ "LED 6", 32 + 5 },
{ "LED 7", 32 + 6 },
{ "LED 8", 32 + 7 },
{ "LED pedal", 32 + 8 }
};
static struct caiaq_controller kore_controller[] = {
{ "LED F1", 8 | CNT_INTVAL },
{ "LED F2", 12 | CNT_INTVAL },
{ "LED F3", 0 | CNT_INTVAL },
{ "LED F4", 4 | CNT_INTVAL },
{ "LED F5", 11 | CNT_INTVAL },
{ "LED F6", 15 | CNT_INTVAL },
{ "LED F7", 3 | CNT_INTVAL },
{ "LED F8", 7 | CNT_INTVAL },
{ "LED touch1", 10 | CNT_INTVAL },
{ "LED touch2", 14 | CNT_INTVAL },
{ "LED touch3", 2 | CNT_INTVAL },
{ "LED touch4", 6 | CNT_INTVAL },
{ "LED touch5", 9 | CNT_INTVAL },
{ "LED touch6", 13 | CNT_INTVAL },
{ "LED touch7", 1 | CNT_INTVAL },
{ "LED touch8", 5 | CNT_INTVAL },
{ "LED left", 18 | CNT_INTVAL },
{ "LED right", 22 | CNT_INTVAL },
{ "LED up", 16 | CNT_INTVAL },
{ "LED down", 20 | CNT_INTVAL },
{ "LED stop", 23 | CNT_INTVAL },
{ "LED play", 21 | CNT_INTVAL },
{ "LED record", 19 | CNT_INTVAL },
{ "LED listen", 17 | CNT_INTVAL },
{ "LED lcd", 30 | CNT_INTVAL },
{ "LED menu", 28 | CNT_INTVAL },
{ "LED sound", 31 | CNT_INTVAL },
{ "LED esc", 29 | CNT_INTVAL },
{ "LED view", 27 | CNT_INTVAL },
{ "LED enter", 24 | CNT_INTVAL },
{ "LED control", 26 | CNT_INTVAL }
};
static struct caiaq_controller a8dj_controller[] = {
{ "Current input mode", 0 | CNT_INTVAL },
{ "GND lift for TC Vinyl mode", 24 + 0 },
{ "GND lift for TC CD/Line mode", 24 + 1 },
{ "GND lift for phono mode", 24 + 2 },
{ "GND lift for TC Vinyl mode", 24 + 3 },
{ "Software lock", 40 }
};
int __devinit snd_usb_caiaq_control_init(struct snd_usb_caiaqdev *dev)
{
int i;
struct snd_kcontrol *kc;
switch (dev->chip.usb_id) {
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
for (i = 0; i < ARRAY_SIZE(ak1_controller); i++) {
struct caiaq_controller *c = ak1_controller + i;
kcontrol_template.name = c->name;
kcontrol_template.private_value = c->index;
kc = snd_ctl_new1(&kcontrol_template, dev);
snd_ctl_add(dev->chip.card, kc);
}
break;
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
for (i = 0; i < ARRAY_SIZE(rk2_controller); i++) {
struct caiaq_controller *c = rk2_controller + i;
kcontrol_template.name = c->name;
kcontrol_template.private_value = c->index;
kc = snd_ctl_new1(&kcontrol_template, dev);
snd_ctl_add(dev->chip.card, kc);
}
break;
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
for (i = 0; i < ARRAY_SIZE(rk3_controller); i++) {
struct caiaq_controller *c = rk3_controller + i;
kcontrol_template.name = c->name;
kcontrol_template.private_value = c->index;
kc = snd_ctl_new1(&kcontrol_template, dev);
snd_ctl_add(dev->chip.card, kc);
}
break;
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
for (i = 0; i < ARRAY_SIZE(kore_controller); i++) {
struct caiaq_controller *c = kore_controller + i;
kcontrol_template.name = c->name;
kcontrol_template.private_value = c->index;
kc = snd_ctl_new1(&kcontrol_template, dev);
snd_ctl_add(dev->chip.card, kc);
}
break;
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ):
for (i = 0; i < ARRAY_SIZE(a8dj_controller); i++) {
struct caiaq_controller *c = a8dj_controller + i;
kcontrol_template.name = c->name;
kcontrol_template.private_value = c->index;
kc = snd_ctl_new1(&kcontrol_template, dev);
snd_ctl_add(dev->chip.card, kc);
}
break;
}
return 0;
}
#ifndef CAIAQ_CONTROL_H
#define CAIAQ_CONTROL_H
int snd_usb_caiaq_control_init(struct snd_usb_caiaqdev *dev);
#endif /* CAIAQ_CONTROL_H */
......@@ -31,17 +31,19 @@
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/rawmidi.h>
#include <sound/control.h>
#include "caiaq-device.h"
#include "caiaq-audio.h"
#include "caiaq-midi.h"
#include "caiaq-control.h"
#ifdef CONFIG_SND_USB_CAIAQ_INPUT
#include "caiaq-input.h"
#endif
MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
MODULE_DESCRIPTION("caiaq USB audio, version 1.2.0");
MODULE_DESCRIPTION("caiaq USB audio, version 1.3.0");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Native Instruments, RigKontrol2},"
"{Native Instruments, RigKontrol3},"
......@@ -140,14 +142,21 @@ static void usb_ep1_command_reply_dispatch (struct urb* urb)
case EP1_CMD_MIDI_READ:
snd_usb_caiaq_midi_handle_input(dev, buf[1], buf + 3, buf[2]);
break;
case EP1_CMD_READ_IO:
if (dev->chip.usb_id ==
USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ)) {
if (urb->actual_length > sizeof(dev->control_state))
urb->actual_length = sizeof(dev->control_state);
memcpy(dev->control_state, buf + 1, urb->actual_length);
wake_up(&dev->ep1_wait_queue);
break;
}
#ifdef CONFIG_SND_USB_CAIAQ_INPUT
case EP1_CMD_READ_ERP:
case EP1_CMD_READ_ANALOG:
case EP1_CMD_READ_IO:
snd_usb_caiaq_input_dispatch(dev, buf, urb->actual_length);
break;
#endif
break;
}
dev->ep1_in_urb.actual_length = 0;
......@@ -156,10 +165,10 @@ static void usb_ep1_command_reply_dispatch (struct urb* urb)
log("unable to submit urb. OOM!?\n");
}
static int send_command (struct snd_usb_caiaqdev *dev,
unsigned char command,
const unsigned char *buffer,
int len)
int snd_usb_caiaq_send_command(struct snd_usb_caiaqdev *dev,
unsigned char command,
const unsigned char *buffer,
int len)
{
int actual_len;
struct usb_device *usb_dev = dev->chip.dev;
......@@ -207,7 +216,8 @@ int snd_usb_caiaq_set_audio_params (struct snd_usb_caiaqdev *dev,
rate, depth, bpp);
dev->audio_parm_answer = -1;
ret = send_command(dev, EP1_CMD_AUDIO_PARAMS, tmp, sizeof(tmp));
ret = snd_usb_caiaq_send_command(dev, EP1_CMD_AUDIO_PARAMS,
tmp, sizeof(tmp));
if (ret)
return ret;
......@@ -226,7 +236,8 @@ int snd_usb_caiaq_set_auto_msg (struct snd_usb_caiaqdev *dev,
int digital, int analog, int erp)
{
char tmp[3] = { digital, analog, erp };
return send_command(dev, EP1_CMD_AUTO_MSG, tmp, sizeof(tmp));
return snd_usb_caiaq_send_command(dev, EP1_CMD_AUTO_MSG,
tmp, sizeof(tmp));
}
static void setup_card(struct snd_usb_caiaqdev *dev)
......@@ -241,7 +252,7 @@ static void setup_card(struct snd_usb_caiaqdev *dev)
val[0] = 0x00;
val[1] = 0x00;
val[2] = 0x01;
send_command(dev, EP1_CMD_WRITE_IO, val, 3);
snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 3);
break;
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
/* RigKontrol2 - display two centered dashes ('--') */
......@@ -249,12 +260,34 @@ static void setup_card(struct snd_usb_caiaqdev *dev)
val[1] = 0x40;
val[2] = 0x40;
val[3] = 0x00;
send_command(dev, EP1_CMD_WRITE_IO, val, 4);
snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 4);
break;
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
/* Audio Kontrol 1 - make USB-LED stop blinking */
val[0] = 0x00;
send_command(dev, EP1_CMD_WRITE_IO, val, 1);
snd_usb_caiaq_send_command(dev, EP1_CMD_WRITE_IO, val, 1);
break;
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ):
/* Audio 8 DJ - trigger read of current settings */
dev->control_state[0] = 0xff;
snd_usb_caiaq_set_auto_msg(dev, 1, 0, 0);
snd_usb_caiaq_send_command(dev, EP1_CMD_READ_IO, NULL, 0);
if (!wait_event_timeout(dev->ep1_wait_queue,
dev->control_state[0] != 0xff, HZ))
return;
/* fix up some defaults */
if ((dev->control_state[1] != 2) ||
(dev->control_state[2] != 3) ||
(dev->control_state[4] != 2)) {
dev->control_state[1] = 2;
dev->control_state[2] = 3;
dev->control_state[4] = 2;
snd_usb_caiaq_send_command(dev,
EP1_CMD_WRITE_IO, dev->control_state, 6);
}
break;
}
......@@ -278,6 +311,10 @@ static void setup_card(struct snd_usb_caiaqdev *dev)
log("snd_card_register() returned %d\n", ret);
snd_card_free(dev->chip.card);
}
ret = snd_usb_caiaq_control_init(dev);
if (ret < 0)
log("Unable to set up control system (ret=%d)\n", ret);
}
static struct snd_card* create_card(struct usb_device* usb_dev)
......@@ -340,7 +377,7 @@ static int init_card(struct snd_usb_caiaqdev *dev)
if (usb_submit_urb(&dev->ep1_in_urb, GFP_KERNEL) != 0)
return -EIO;
err = send_command(dev, EP1_CMD_GET_DEVICE_INFO, NULL, 0);
err = snd_usb_caiaq_send_command(dev, EP1_CMD_GET_DEVICE_INFO, NULL, 0);
if (err)
return err;
......
......@@ -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 */
......@@ -38,6 +38,41 @@ static unsigned short keycode_rk2[] = { KEY_1, KEY_2, KEY_3, KEY_4,
static unsigned short keycode_rk3[] = { KEY_1, KEY_2, KEY_3, KEY_4,
KEY_5, KEY_6, KEY_7, KEY_5, KEY_6 };
static unsigned short keycode_kore[] = {
KEY_FN_F1, /* "menu" */
KEY_FN_F7, /* "lcd backlight */
KEY_FN_F2, /* "control" */
KEY_FN_F3, /* "enter" */
KEY_FN_F4, /* "view" */
KEY_FN_F5, /* "esc" */
KEY_FN_F6, /* "sound" */
KEY_FN_F8, /* array spacer, never triggered. */
KEY_RIGHT,
KEY_DOWN,
KEY_UP,
KEY_LEFT,
KEY_SOUND, /* "listen" */
KEY_RECORD,
KEY_PLAYPAUSE,
KEY_STOP,
BTN_4, /* 8 softkeys */
BTN_3,
BTN_2,
BTN_1,
BTN_8,
BTN_7,
BTN_6,
BTN_5,
KEY_BRL_DOT4, /* touch sensitive knobs */
KEY_BRL_DOT3,
KEY_BRL_DOT2,
KEY_BRL_DOT1,
KEY_BRL_DOT8,
KEY_BRL_DOT7,
KEY_BRL_DOT6,
KEY_BRL_DOT5
};
#define DEG90 (range / 2)
#define DEG180 (range)
#define DEG270 (DEG90 + DEG180)
......@@ -115,14 +150,20 @@ static void snd_caiaq_input_read_analog(struct snd_usb_caiaqdev *dev,
{
struct input_dev *input_dev = dev->input_dev;
switch (input_dev->id.product) {
case USB_PID_RIGKONTROL2:
switch (dev->chip.usb_id) {
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
input_report_abs(input_dev, ABS_X, (buf[4] << 8) | buf[5]);
input_report_abs(input_dev, ABS_Y, (buf[0] << 8) | buf[1]);
input_report_abs(input_dev, ABS_Z, (buf[2] << 8) | buf[3]);
input_sync(input_dev);
break;
case USB_PID_RIGKONTROL3:
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
input_report_abs(input_dev, ABS_X, (buf[0] << 8) | buf[1]);
input_report_abs(input_dev, ABS_Y, (buf[2] << 8) | buf[3]);
input_report_abs(input_dev, ABS_Z, (buf[4] << 8) | buf[5]);
input_sync(input_dev);
break;
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
input_report_abs(input_dev, ABS_X, (buf[0] << 8) | buf[1]);
input_report_abs(input_dev, ABS_Y, (buf[2] << 8) | buf[3]);
input_report_abs(input_dev, ABS_Z, (buf[4] << 8) | buf[5]);
......@@ -137,12 +178,31 @@ static void snd_caiaq_input_read_erp(struct snd_usb_caiaqdev *dev,
struct input_dev *input_dev = dev->input_dev;
int i;
switch (input_dev->id.product) {
case USB_PID_AK1:
switch (dev->chip.usb_id) {
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
i = decode_erp(buf[0], buf[1]);
input_report_abs(input_dev, ABS_X, i);
input_sync(input_dev);
break;
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
i = decode_erp(buf[7], buf[5]);
input_report_abs(input_dev, ABS_HAT0X, i);
i = decode_erp(buf[12], buf[14]);
input_report_abs(input_dev, ABS_HAT0Y, i);
i = decode_erp(buf[15], buf[13]);