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DEFINITIONS
This source file includes following definitions.
- usb_ep1_command_reply_dispatch
- snd_usb_caiaq_send_command
- snd_usb_caiaq_set_audio_params
- snd_usb_caiaq_set_auto_msg
- setup_card
- create_card
- init_card
- snd_probe
- snd_disconnect
- snd_module_init
- snd_module_exit
/*
* 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/core.h>
#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 1.3.8");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Native Instruments, RigKontrol2},"
"{Native Instruments, RigKontrol3},"
"{Native Instruments, Kore Controller},"
"{Native Instruments, Kore Controller 2},"
"{Native Instruments, Audio Kontrol 1},"
"{Native Instruments, Audio 8 DJ},"
"{Native Instruments, Session I/O}}");
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_RIGKONTROL3
},
{
.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_KORECONTROLLER2
},
{
.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
},
{
.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
.idVendor = USB_VID_NATIVEINSTRUMENTS,
.idProduct = USB_PID_SESSIONIO
},
{ /* 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;
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:
snd_usb_caiaq_input_dispatch(dev, buf, urb->actual_length);
#endif
break;
}
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");
}
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;
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 = snd_usb_caiaq_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 snd_usb_caiaq_send_command(dev, EP1_CMD_AUTO_MSG,
tmp, sizeof(tmp));
}
static void __devinit setup_card(struct snd_usb_caiaqdev *dev)
{
int ret;
char val[4];
/* 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;
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 ('--') */
val[0] = 0x00;
val[1] = 0x40;
val[2] = 0x40;
val[3] = 0x00;
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;
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;
}
if (dev->spec.num_analog_audio_out +
dev->spec.num_analog_audio_in +
dev->spec.num_digital_audio_out +
dev->spec.num_digital_audio_in > 0) {
ret = snd_usb_caiaq_audio_init(dev);
if (ret < 0)
log("Unable to set up audio system (ret=%d)\n", ret);
}
if (dev->spec.num_midi_in +
dev->spec.num_midi_out > 0) {
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);
}
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)
{
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(le16_to_cpu(usb_dev->descriptor.idVendor),
le16_to_cpu(usb_dev->descriptor.idProduct));
spin_lock_init(&dev->spinlock);
snd_card_set_dev(card, &usb_dev->dev);
return card;
}
static int __devinit 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 = snd_usb_caiaq_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 __devinit 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("%s(%p)\n", __func__, 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)