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[ALSA] Add Native Instrument usb audio device support

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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>
This commit is contained in:
Daniel Mack
2007-03-26 19:11:24 +02:00
committed by Jaroslav Kysela
parent e24a121aa1
commit 523f1dce37
12 changed files with 1747 additions and 1 deletions
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11
Documentation/sound/alsa/ALSA-Configuration.txt
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@@ -1697,6 +1697,17 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
This module supports multiple devices, autoprobe and hotplugging.
Module snd-usb-caiaq
--------------------
Module for caiaq UB audio interfaces,
* Native Instruments RigKontrol2
* Native Instruments Kore Controller
* Native Instruments Audio Kontrol 1
* Native Instruments Audio 8 DJ
This module supports multiple devices, autoprobe and hotplugging.
Module snd-usb-usx2y
--------------------

28
sound/usb/Kconfig
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@@ -29,5 +29,33 @@ config SND_USB_USX2Y
To compile this driver as a module, choose M here: the module
will be called snd-usb-usx2y.
config SND_USB_CAIAQ
tristate "Native Instruments USB audio devices"
depends on SND && USB
select SND_HWDEP
select SND_RAWMIDI
select SND_PCM
help
Say Y here to include support for caiaq USB audio interfaces,
namely:
* Native Instruments RigKontrol2
* Native Instruments Kore Controller
* Native Instruments Audio Kontrol 1
* Native Instruments Audio 8 DJ
To compile this driver as a module, choose M here: the module
will be called snd-usb-caiaq.
config SND_USB_CAIAQ_INPUT
bool "enable input device for controllers"
depends on SND_USB_CAIAQ
help
Say Y here to support input controllers like buttons, knobs,
alpha dials and analog pedals on the following products:
* Native Instruments RigKontrol2
* Native Instruments Audio Kontrol 1
endmenu

2
sound/usb/Makefile
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@@ -9,4 +9,4 @@ snd-usb-lib-objs := usbmidi.o
obj-$(CONFIG_SND_USB_AUDIO) += snd-usb-audio.o snd-usb-lib.o
obj-$(CONFIG_SND_USB_USX2Y) += snd-usb-lib.o
obj-$(CONFIG_SND) += usx2y/
obj-$(CONFIG_SND) += usx2y/ caiaq/

3
sound/usb/caiaq/Makefile Normal file
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@@ -0,0 +1,3 @@
snd-usb-caiaq-objs := caiaq-device.o caiaq-audio.o caiaq-midi.o caiaq-input.o
obj-$(CONFIG_SND_USB_CAIAQ) += snd-usb-caiaq.o

706
sound/usb/caiaq/caiaq-audio.c Normal file
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File diff suppressed because it is too large Load Diff

7
sound/usb/caiaq/caiaq-audio.h Normal file
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@@ -0,0 +1,7 @@
#ifndef CAIAQ_AUDIO_H
#define CAIAQ_AUDIO_H
int snd_usb_caiaq_audio_init(struct snd_usb_caiaqdev *dev);
void snd_usb_caiaq_audio_free(struct snd_usb_caiaqdev *dev);
#endif /* CAIAQ_AUDIO_H */

436
sound/usb/caiaq/caiaq-device.c Normal file
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@@ -0,0 +1,436 @@
/*
* caiaq.c: ALSA driver for caiaq/NativeInstruments devices
*
* Copyright (c) 2007 Daniel Mack <daniel@caiaq.de>
* Karsten Wiese <fzu@wemgehoertderstaat.de>
*
* 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 <linux/init.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/interrupt.h>
#include <linux/usb.h>
#include <linux/input.h>
#include <linux/spinlock.h>
#include <sound/driver.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/rawmidi.h>
#include "caiaq-device.h"
#include "caiaq-audio.h"
#include "caiaq-midi.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 1.1.0");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Native Instruments, RigKontrol2},"
"{Native Instruments, Kore Controller},"
"{Native Instruments, Audio Kontrol 1}"
"{Native Instruments, Audio 8 DJ}}");
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
static int snd_card_used[SNDRV_CARDS];
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for the caiaq sound device");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for the caiaq soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable the caiaq soundcard.");
enum {
SAMPLERATE_44100 = 0,
SAMPLERATE_48000 = 1,
SAMPLERATE_96000 = 2,
SAMPLERATE_192000 = 3,
SAMPLERATE_88200 = 4,
SAMPLERATE_INVALID = 0xff
};
enum {
DEPTH_NONE = 0,
DEPTH_16 = 1,
DEPTH_24 = 2,
DEPTH_32 = 3
};
static struct usb_device_id snd_usb_id_table[] = {
{
.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
.idVendor = USB_VID_NATIVEINSTRUMENTS,
.idProduct = USB_PID_RIGKONTROL2
},
{
.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
.idVendor = USB_VID_NATIVEINSTRUMENTS,
.idProduct = USB_PID_KORECONTROLLER
},
{
.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
.idVendor = USB_VID_NATIVEINSTRUMENTS,
.idProduct = USB_PID_AK1
},
{
.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
.idVendor = USB_VID_NATIVEINSTRUMENTS,
.idProduct = USB_PID_AUDIO8DJ
},
{ /* terminator */ }
};
static void usb_ep1_command_reply_dispatch (struct urb* urb)
{
int ret;
struct snd_usb_caiaqdev *dev = urb->context;
unsigned char *buf = urb->transfer_buffer;
if (urb->status || !dev) {
log("received EP1 urb->status = %i\n", urb->status);
return;
}
switch(buf[0]) {
case EP1_CMD_GET_DEVICE_INFO:
memcpy(&dev->spec, buf+1, sizeof(struct caiaq_device_spec));
dev->spec.fw_version = le16_to_cpu(dev->spec.fw_version);
debug("device spec (firmware %d): audio: %d in, %d out, "
"MIDI: %d in, %d out, data alignment %d\n",
dev->spec.fw_version,
dev->spec.num_analog_audio_in,
dev->spec.num_analog_audio_out,
dev->spec.num_midi_in,
dev->spec.num_midi_out,
dev->spec.data_alignment);
dev->spec_received++;
wake_up(&dev->ep1_wait_queue);
break;
case EP1_CMD_AUDIO_PARAMS:
dev->audio_parm_answer = buf[1];
wake_up(&dev->ep1_wait_queue);
break;
case EP1_CMD_MIDI_READ:
snd_usb_caiaq_midi_handle_input(dev, buf[1], buf + 3, buf[2]);
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
}
dev->ep1_in_urb.actual_length = 0;
ret = usb_submit_urb(&dev->ep1_in_urb, GFP_ATOMIC);
if (ret < 0)
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 actual_len;
struct usb_device *usb_dev = dev->chip.dev;
if (!usb_dev)
return -EIO;
if (len > EP1_BUFSIZE - 1)
len = EP1_BUFSIZE - 1;
if (buffer && len > 0)
memcpy(dev->ep1_out_buf+1, buffer, len);
dev->ep1_out_buf[0] = command;
return usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, 1),
dev->ep1_out_buf, len+1, &actual_len, 200);
}
int snd_usb_caiaq_set_audio_params (struct snd_usb_caiaqdev *dev,
int rate, int depth, int bpp)
{
int ret;
char tmp[5];
switch (rate) {
case 44100: tmp[0] = SAMPLERATE_44100; break;
case 48000: tmp[0] = SAMPLERATE_48000; break;
case 88200: tmp[0] = SAMPLERATE_88200; break;
case 96000: tmp[0] = SAMPLERATE_96000; break;
case 192000: tmp[0] = SAMPLERATE_192000; break;
default: return -EINVAL;
}
switch (depth) {
case 16: tmp[1] = DEPTH_16; break;
case 24: tmp[1] = DEPTH_24; break;
default: return -EINVAL;
}
tmp[2] = bpp & 0xff;
tmp[3] = bpp >> 8;
tmp[4] = 1; /* packets per microframe */
debug("setting audio params: %d Hz, %d bits, %d bpp\n",
rate, depth, bpp);
dev->audio_parm_answer = -1;
ret = send_command(dev, EP1_CMD_AUDIO_PARAMS, tmp, sizeof(tmp));
if (ret)
return ret;
if (!wait_event_timeout(dev->ep1_wait_queue,
dev->audio_parm_answer >= 0, HZ))
return -EPIPE;
if (dev->audio_parm_answer != 1)
debug("unable to set the device's audio params\n");
return dev->audio_parm_answer == 1 ? 0 : -EINVAL;
}
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));
}
static void setup_card(struct snd_usb_caiaqdev *dev)
{
int ret;
char val[3];
/* device-specific startup specials */
switch (dev->chip.usb_id) {
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
/* RigKontrol2 - display centered dash ('-') */
val[0] = 0x00;
val[1] = 0x00;
val[2] = 0x01;
send_command(dev, EP1_CMD_WRITE_IO, val, 3);
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);
break;
}
ret = snd_usb_caiaq_audio_init(dev);
if (ret < 0)
log("Unable to set up audio system (ret=%d)\n", ret);
ret = snd_usb_caiaq_midi_init(dev);
if (ret < 0)
log("Unable to set up MIDI system (ret=%d)\n", ret);
#ifdef CONFIG_SND_USB_CAIAQ_INPUT
ret = snd_usb_caiaq_input_init(dev);
if (ret < 0)
log("Unable to set up input system (ret=%d)\n", ret);
#endif
/* finally, register the card and all its sub-instances */
ret = snd_card_register(dev->chip.card);
if (ret < 0) {
log("snd_card_register() returned %d\n", ret);
snd_card_free(dev->chip.card);
}
}
static struct snd_card* create_card(struct usb_device* usb_dev)
{
int devnum;
struct snd_card *card;
struct snd_usb_caiaqdev *dev;
for (devnum = 0; devnum < SNDRV_CARDS; devnum++)
if (enable[devnum] && !snd_card_used[devnum])
break;
if (devnum >= SNDRV_CARDS)
return NULL;
card = snd_card_new(index[devnum], id[devnum], THIS_MODULE,
sizeof(struct snd_usb_caiaqdev));
if (!card)
return NULL;
dev = caiaqdev(card);
dev->chip.dev = usb_dev;
dev->chip.card = card;
dev->chip.usb_id = USB_ID(usb_dev->descriptor.idVendor,
usb_dev->descriptor.idProduct);
spin_lock_init(&dev->spinlock);
snd_card_set_dev(card, &usb_dev->dev);
return card;
}
static int init_card(struct snd_usb_caiaqdev *dev)
{
char *c;
struct usb_device *usb_dev = dev->chip.dev;
struct snd_card *card = dev->chip.card;
int err, len;
if (usb_set_interface(usb_dev, 0, 1) != 0) {
log("can't set alt interface.\n");
return -EIO;
}
usb_init_urb(&dev->ep1_in_urb);
usb_init_urb(&dev->midi_out_urb);
usb_fill_bulk_urb(&dev->ep1_in_urb, usb_dev,
usb_rcvbulkpipe(usb_dev, 0x1),
dev->ep1_in_buf, EP1_BUFSIZE,
usb_ep1_command_reply_dispatch, dev);
usb_fill_bulk_urb(&dev->midi_out_urb, usb_dev,
usb_sndbulkpipe(usb_dev, 0x1),
dev->midi_out_buf, EP1_BUFSIZE,
snd_usb_caiaq_midi_output_done, dev);
init_waitqueue_head(&dev->ep1_wait_queue);
init_waitqueue_head(&dev->prepare_wait_queue);
if (usb_submit_urb(&dev->ep1_in_urb, GFP_KERNEL) != 0)
return -EIO;
err = send_command(dev, EP1_CMD_GET_DEVICE_INFO, NULL, 0);
if (err)
return err;
if (!wait_event_timeout(dev->ep1_wait_queue, dev->spec_received, HZ))
return -ENODEV;
usb_string(usb_dev, usb_dev->descriptor.iManufacturer,
dev->vendor_name, CAIAQ_USB_STR_LEN);
usb_string(usb_dev, usb_dev->descriptor.iProduct,
dev->product_name, CAIAQ_USB_STR_LEN);
usb_string(usb_dev, usb_dev->descriptor.iSerialNumber,
dev->serial, CAIAQ_USB_STR_LEN);
/* terminate serial string at first white space occurence */
c = strchr(dev->serial, ' ');
if (c)
*c = '\0';
strcpy(card->driver, MODNAME);
strcpy(card->shortname, dev->product_name);
len = snprintf(card->longname, sizeof(card->longname),
"%s %s (serial %s, ",
dev->vendor_name, dev->product_name, dev->serial);
if (len < sizeof(card->longname) - 2)
len += usb_make_path(usb_dev, card->longname + len,
sizeof(card->longname) - len);
card->longname[len++] = ')';
card->longname[len] = '\0';
setup_card(dev);
return 0;
}
static int snd_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
int ret;
struct snd_card *card;
struct usb_device *device = interface_to_usbdev(intf);
card = create_card(device);
if (!card)
return -ENOMEM;
dev_set_drvdata(&intf->dev, card);
ret = init_card(caiaqdev(card));
if (ret < 0) {
log("unable to init card! (ret=%d)\n", ret);
snd_card_free(card);
return ret;
}
return 0;
}
static void snd_disconnect(struct usb_interface *intf)
{
struct snd_usb_caiaqdev *dev;
struct snd_card *card = dev_get_drvdata(&intf->dev);
debug("snd_disconnect(%p)\n", intf);
if (!card)
return;
dev = caiaqdev(card);
snd_card_disconnect(card);
#ifdef CONFIG_SND_USB_CAIAQ_INPUT
snd_usb_caiaq_input_free(dev);
#endif
snd_usb_caiaq_audio_free(dev);
usb_kill_urb(&dev->ep1_in_urb);
usb_kill_urb(&dev->midi_out_urb);
snd_card_free(card);
usb_reset_device(interface_to_usbdev(intf));
}
MODULE_DEVICE_TABLE(usb, snd_usb_id_table);
static struct usb_driver snd_usb_driver = {
.name = MODNAME,
.probe = snd_probe,
.disconnect = snd_disconnect,
.id_table = snd_usb_id_table,
};
static int __init snd_module_init(void)
{
return usb_register(&snd_usb_driver);
}
static void __exit snd_module_exit(void)
{
usb_deregister(&snd_usb_driver);
}
module_init(snd_module_init)
module_exit(snd_module_exit)

116
sound/usb/caiaq/caiaq-device.h Normal file
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@@ -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 */

246
sound/usb/caiaq/caiaq-input.c Normal file
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@@ -0,0 +1,246 @@
/*
* Copyright (c) 2006,2007 Daniel Mack, Tim Ruetz
*
* 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 <linux/init.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/input.h>
#include <linux/usb.h>
#include <linux/spinlock.h>
#include <sound/driver.h>
#include <sound/core.h>
#include <sound/rawmidi.h>
#include <sound/pcm.h>
#include "caiaq-device.h"
#include "caiaq-input.h"
#ifdef CONFIG_SND_USB_CAIAQ_INPUT
static unsigned char keycode_ak1[] = { KEY_C, KEY_B, KEY_A };
static unsigned char keycode_rk2[] = { KEY_1, KEY_2, KEY_3, KEY_4,
KEY_5, KEY_6, KEY_7 };
#define DEG90 (range/2)
#define DEG180 (range)
#define DEG270 (DEG90 + DEG180)
#define DEG360 (DEG180 * 2)
#define HIGH_PEAK (268)
#define LOW_PEAK (-7)
/* some of these devices have endless rotation potentiometers
* built in which use two tapers, 90 degrees phase shifted.
* this algorithm decodes them to one single value, ranging
* from 0 to 999 */
static unsigned int decode_erp(unsigned char a, unsigned char b)
{
int weight_a, weight_b;
int pos_a, pos_b;
int ret;
int range = HIGH_PEAK - LOW_PEAK;
int mid_value = (HIGH_PEAK + LOW_PEAK) / 2;
weight_b = abs(mid_value-a) - (range/2 - 100)/2;
if (weight_b < 0)
weight_b = 0;
if (weight_b > 100)
weight_b = 100;
weight_a = 100 - weight_b;
if (a < mid_value) {
/* 0..90 and 270..360 degrees */
pos_b = b - LOW_PEAK + DEG270;
if (pos_b >= DEG360)
pos_b -= DEG360;
} else
/* 90..270 degrees */
pos_b = HIGH_PEAK - b + DEG90;
if (b > mid_value)
/* 0..180 degrees */
pos_a = a - LOW_PEAK;
else
/* 180..360 degrees */
pos_a = HIGH_PEAK - a + DEG180;
/* interpolate both slider values, depending on weight factors */
/* 0..99 x DEG360 */
ret = pos_a * weight_a + pos_b * weight_b;
/* normalize to 0..999 */
ret *= 10;
ret /= DEG360;
if (ret < 0)
ret += 1000;
if (ret >= 1000)
ret -= 1000;
return ret;
}
#undef DEG90
#undef DEG180
#undef DEG270
#undef DEG360
#undef HIGH_PEAK
#undef LOW_PEAK
static void snd_caiaq_input_read_analog(struct snd_usb_caiaqdev *dev,
const char *buf, unsigned int len)
{
switch(dev->input_dev->id.product) {
case USB_PID_RIGKONTROL2:
input_report_abs(dev->input_dev, ABS_X, (buf[4] << 8) |buf[5]);
input_report_abs(dev->input_dev, ABS_Y, (buf[0] << 8) |buf[1]);
input_report_abs(dev->input_dev, ABS_Z, (buf[2] << 8) |buf[3]);
input_sync(dev->input_dev);
break;
}
}
static void snd_caiaq_input_read_erp(struct snd_usb_caiaqdev *dev,
const char *buf, unsigned int len)
{
int i;
switch(dev->input_dev->id.product) {
case USB_PID_AK1:
i = decode_erp(buf[0], buf[1]);
input_report_abs(dev->input_dev, ABS_X, i);
input_sync(dev->input_dev);
break;
}
}
static void snd_caiaq_input_read_io(struct snd_usb_caiaqdev *dev,
char *buf, unsigned int len)
{
int i;
unsigned char *keycode = dev->input_dev->keycode;
if (!keycode)
return;
if (dev->input_dev->id.product == USB_PID_RIGKONTROL2)
for (i=0; i<len; i++)
buf[i] = ~buf[i];
for (i=0; (i<dev->input_dev->keycodemax) && (i < len); i++)
input_report_key(dev->input_dev, keycode[i],
buf[i/8] & (1 << (i%8)));
input_sync(dev->input_dev);
}
void snd_usb_caiaq_input_dispatch(struct snd_usb_caiaqdev *dev,
char *buf,
unsigned int len)
{
if (!dev->input_dev || (len < 1))
return;
switch (buf[0]) {
case EP1_CMD_READ_ANALOG:
snd_caiaq_input_read_analog(dev, buf+1, len-1);
break;
case EP1_CMD_READ_ERP:
snd_caiaq_input_read_erp(dev, buf+1, len-1);
break;
case EP1_CMD_READ_IO:
snd_caiaq_input_read_io(dev, buf+1, len-1);
break;
}
}
int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *dev)
{
struct usb_device *usb_dev = dev->chip.dev;
struct input_dev *input;
int i, ret;
input = input_allocate_device();
if (!input)
return -ENOMEM;
input->name = dev->product_name;
input->id.bustype = BUS_USB;
input->id.vendor = usb_dev->descriptor.idVendor;
input->id.product = usb_dev->descriptor.idProduct;
input->id.version = usb_dev->descriptor.bcdDevice;
switch (dev->chip.usb_id) {
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
input->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
input->absbit[0] = BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_Z);
input->keycode = keycode_rk2;
input->keycodesize = sizeof(char);
input->keycodemax = ARRAY_SIZE(keycode_rk2);
for (i=0; i<ARRAY_SIZE(keycode_rk2); i++)
set_bit(keycode_rk2[i], input->keybit);
input_set_abs_params(input, ABS_X, 0, 4096, 0, 10);
input_set_abs_params(input, ABS_Y, 0, 4096, 0, 10);
input_set_abs_params(input, ABS_Z, 0, 4096, 0, 10);
snd_usb_caiaq_set_auto_msg(dev, 1, 10, 0);
break;
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
input->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
input->absbit[0] = BIT(ABS_X);
input->keycode = keycode_ak1;
input->keycodesize = sizeof(char);
input->keycodemax = ARRAY_SIZE(keycode_ak1);
for (i=0; i<ARRAY_SIZE(keycode_ak1); i++)
set_bit(keycode_ak1[i], input->keybit);
input_set_abs_params(input, ABS_X, 0, 999, 0, 10);
snd_usb_caiaq_set_auto_msg(dev, 1, 0, 5);
break;
default:
/* no input methods supported on this device */
input_free_device(input);
return 0;
}
ret = input_register_device(input);
if (ret < 0) {
input_free_device(input);
return ret;
}
dev->input_dev = input;
return 0;
}
void snd_usb_caiaq_input_free(struct snd_usb_caiaqdev *dev)
{
if (!dev || !dev->input_dev)
return;
input_unregister_device(dev->input_dev);
input_free_device(dev->input_dev);
dev->input_dev = NULL;
}
#endif /* CONFIG_SND_USB_CAIAQ_INPUT */

8
sound/usb/caiaq/caiaq-input.h Normal file
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@@ -0,0 +1,8 @@
#ifndef CAIAQ_INPUT_H
#define CAIAQ_INPUT_H
void snd_usb_caiaq_input_dispatch(struct snd_usb_caiaqdev *dev, char *buf, unsigned int len);
int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *dev);
void snd_usb_caiaq_input_free(struct snd_usb_caiaqdev *dev);
#endif

177
sound/usb/caiaq/caiaq-midi.c Normal file
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/*
* Copyright (c) 2006,2007 Daniel Mack
*
* 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 <linux/init.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/interrupt.h>
#include <linux/usb.h>
#include <linux/input.h>
#include <linux/spinlock.h>
#include <sound/driver.h>
#include <sound/core.h>
#include <sound/rawmidi.h>
#include <sound/pcm.h>
#include "caiaq-device.h"
#include "caiaq-midi.h"
static int snd_usb_caiaq_midi_input_open(struct snd_rawmidi_substream *substream)
{
return 0;
}
static int snd_usb_caiaq_midi_input_close(struct snd_rawmidi_substream *substream)
{
return 0;
}
static void snd_usb_caiaq_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
{
struct snd_usb_caiaqdev *dev = substream->rmidi->private_data;
if (!dev)
return;
dev->midi_receive_substream = up ? substream : NULL;
}
static int snd_usb_caiaq_midi_output_open(struct snd_rawmidi_substream *substream)
{
return 0;
}
static int snd_usb_caiaq_midi_output_close(struct snd_rawmidi_substream *substream)
{
return 0;
}
static void snd_usb_caiaq_midi_send(struct snd_usb_caiaqdev *dev,
struct snd_rawmidi_substream *substream)
{
int len, ret;
dev->midi_out_buf[0] = EP1_CMD_MIDI_WRITE;
dev->midi_out_buf[1] = 0; /* port */
len = snd_rawmidi_transmit_peek(substream, dev->midi_out_buf+3, EP1_BUFSIZE-3);
if (len <= 0)
return;
dev->midi_out_buf[2] = len;
dev->midi_out_urb.transfer_buffer_length = len+3;
ret = usb_submit_urb(&dev->midi_out_urb, GFP_ATOMIC);
if (ret < 0)
log("snd_usb_caiaq_midi_send(%p): usb_submit_urb() failed, %d\n",
substream, ret);
}
static void snd_usb_caiaq_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
{
struct snd_usb_caiaqdev *dev = substream->rmidi->private_data;
if (dev->midi_out_substream != NULL)
return;
if (!up) {
dev->midi_out_substream = NULL;
return;
}
dev->midi_out_substream = substream;
snd_usb_caiaq_midi_send(dev, substream);
}
static struct snd_rawmidi_ops snd_usb_caiaq_midi_output =
{
.open = snd_usb_caiaq_midi_output_open,
.close = snd_usb_caiaq_midi_output_close,
.trigger = snd_usb_caiaq_midi_output_trigger,
};
static struct snd_rawmidi_ops snd_usb_caiaq_midi_input =
{
.open = snd_usb_caiaq_midi_input_open,
.close = snd_usb_caiaq_midi_input_close,
.trigger = snd_usb_caiaq_midi_input_trigger,
};
void snd_usb_caiaq_midi_handle_input(struct snd_usb_caiaqdev *dev,
int port, const char *buf, int len)
{
if (!dev->midi_receive_substream)
return;
snd_rawmidi_receive(dev->midi_receive_substream, buf, len);
}
int __devinit snd_usb_caiaq_midi_init(struct snd_usb_caiaqdev *device)
{
int ret;
struct snd_rawmidi *rmidi;
ret = snd_rawmidi_new(device->chip.card, device->product_name, 0,
device->spec.num_midi_out,
device->spec.num_midi_in,
&rmidi);
if (ret < 0)
return ret;
strcpy(rmidi->name, device->product_name);
rmidi->info_flags = SNDRV_RAWMIDI_INFO_DUPLEX;
rmidi->private_data = device;
if (device->spec.num_midi_out > 0) {
rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT;
snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT,
&snd_usb_caiaq_midi_output);
}
if (device->spec.num_midi_in > 0) {
rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT;
snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT,
&snd_usb_caiaq_midi_input);
}
device->rmidi = rmidi;
return 0;
}
void snd_usb_caiaq_midi_output_done(struct urb* urb)
{
struct snd_usb_caiaqdev *dev = urb->context;
char *buf = urb->transfer_buffer;
if (urb->status != 0)
return;
if (!dev->midi_out_substream)
return;
snd_rawmidi_transmit_ack(dev->midi_out_substream, buf[2]);
dev->midi_out_substream = NULL;
snd_usb_caiaq_midi_send(dev, dev->midi_out_substream);
}

8
sound/usb/caiaq/caiaq-midi.h Normal file
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#ifndef CAIAQ_MIDI_H
#define CAIAQ_MIDI_H
int snd_usb_caiaq_midi_init(struct snd_usb_caiaqdev *dev);
void snd_usb_caiaq_midi_handle_input(struct snd_usb_caiaqdev *dev, int port, const char *buf, int len);
void snd_usb_caiaq_midi_output_done(struct urb* urb);
#endif /* CAIAQ_MIDI_H */