Hello,
it's my first try in Kernel development. With copy, paste and modify I
have written a quirk for the Edirol UA-101 from the quirk for the
UA-1000. So far I can use the UA-101, but neither I can access it
through XMMS and the ALSA-plugin, nor do I have a mixer for it. Perhaps
that's just some little change elsewhere, but I don't have the time and
knowledge to do further research. For me it is enough to access the
UA-101 through jackd, which works: 12 capture channels (I don't know
what the last 2 are) and 10 playback channels. And MIDI also works.
I worked with the 2.6.18 Kernel under Debian etch and modified the three
files: usbaudio.c usbaudio.h usbquirks.h
Why there are "!" in the last diffs (at the end) I don't know.
I attach the files to the mail, if that it possible and also copy &
paste it at the end.
If there are any questions or things I should do like sending the files
to someone or so, just say so. As I said I have no experience in writing
kernel driver or anything like this.
I hope the code will be inserted or at least leads to support of the
UA-101 under Linux.
Thanks and kind regards
Bjoern
PS: I'm not in the mailinglist.
*** /usr/src/linux-source-2.6.18/sound/usb/usbaudio.c 2006-09-20
05:42:06.000000000 +0200
--- usbaudio.c 2006-12-28 22:35:26.000000000 +0100
***************
*** 3007,3012 ****
--- 3007,3065 ----
return 0;
}
+ /*
+ * Create a stream for an Edirol UA-101 interface.
+ * Copy, paste and modify from Edirol UA-1000
+ */
+ static int create_ua101_quirk(struct snd_usb_audio *chip,
+ struct usb_interface *iface,
+ const struct snd_usb_audio_quirk *quirk)
+ {
+ static const struct audioformat ua101_format = {
+ .format = SNDRV_PCM_FORMAT_S32_LE,
+ .fmt_type = USB_FORMAT_TYPE_I,
+ .altsetting = 1,
+ .altset_idx = 1,
+ .attributes = 0,
+ .rates = SNDRV_PCM_RATE_CONTINUOUS,
+ };
+ struct usb_host_interface *alts;
+ struct usb_interface_descriptor *altsd;
+ struct audioformat *fp;
+ int stream, err;
+
+ if (iface->num_altsetting != 2)
+ return -ENXIO;
+ alts = &iface->altsetting[1];
+ altsd = get_iface_desc(alts);
+ if (alts->extralen != 18 || alts->extra[1] != USB_DT_CS_INTERFACE ||
+ altsd->bNumEndpoints != 1)
+ return -ENXIO;
+
+ fp = kmalloc(sizeof(*fp), GFP_KERNEL);
+ if (!fp)
+ return -ENOMEM;
+ memcpy(fp, &ua101_format, sizeof(*fp));
+
+ fp->channels = alts->extra[11];
+ fp->iface = altsd->bInterfaceNumber;
+ fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
+ fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
+ fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
+ fp->rate_max = fp->rate_min = combine_triple(&alts->extra[15]);
+
+ stream = (fp->endpoint & USB_DIR_IN)
+ ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
+ err = add_audio_endpoint(chip, stream, fp);
+ if (err < 0) {
+ kfree(fp);
+ return err;
+ }
+ /* FIXME: playback must be synchronized to capture */
+ usb_set_interface(chip->dev, fp->iface, 0);
+ return 0;
+ }
+
static int snd_usb_create_quirk(struct snd_usb_audio *chip,
struct usb_interface *iface,
const struct snd_usb_audio_quirk *quirk);
***************
*** 3188,3193 ****
--- 3241,3247 ----
[QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk,
[QUIRK_AUDIO_EDIROL_UA700_UA25] = create_ua700_ua25_quirk,
[QUIRK_AUDIO_EDIROL_UA1000] = create_ua1000_quirk,
+ [QUIRK_AUDIO_EDIROL_UA101] = create_ua101_quirk,
};
if (quirk->type < QUIRK_TYPE_COUNT) {
*** /usr/src/linux-source-2.6.18/sound/usb/usbaudio.h 2006-09-20
05:42:06.000000000 +0200
--- usbaudio.h 2006-12-28 17:01:50.000000000 +0100
***************
*** 159,164 ****
--- 159,165 ----
QUIRK_AUDIO_FIXED_ENDPOINT,
QUIRK_AUDIO_EDIROL_UA700_UA25,
QUIRK_AUDIO_EDIROL_UA1000,
+ QUIRK_AUDIO_EDIROL_UA101,
QUIRK_TYPE_COUNT
};
*** /usr/src/linux-source-2.6.18/sound/usb/usbquirks.h 2006-09-20
05:42:06.000000000 +0200
--- usbquirks.h 2006-12-28 22:32:56.000000000 +0100
***************
*** 1093,1099 ****
}
}
},
! /* TODO: add Edirol UA-101 support */
{
/* has ID 0x0081 when not in "Advanced Driver" mode */
USB_DEVICE(0x0582, 0x0080),
--- 1093,1129 ----
}
}
},
! /* Roland UA-101 in High-Speed Mode only */
! {
! USB_DEVICE(0x0582, 0x007d),
! .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
! .vendor_name = "Roland",
! .product_name = "UA-101",
! .ifnum = QUIRK_ANY_INTERFACE,
! .type = QUIRK_COMPOSITE,
! .data = (const struct snd_usb_audio_quirk[]) {
! {
! .ifnum = 0,
! .type = QUIRK_AUDIO_EDIROL_UA101
! },
! {
! .ifnum = 1,
! .type = QUIRK_AUDIO_EDIROL_UA101
! },
! {
! .ifnum = 2,
! .type = QUIRK_MIDI_FIXED_ENDPOINT,
! .data = & (const struct snd_usb_midi_endpoint_info) {
! .out_cables = 0x0001,
! .in_cables = 0x0001
! }
! },
! {
! .ifnum = -1
! }
! }
! }
! },
{
/* has ID 0x0081 when not in "Advanced Driver" mode */
USB_DEVICE(0x0582, 0x0080),
*** /usr/src/linux-source-2.6.18/sound/usb/usbaudio.c 2006-09-20 05:42:06.000000000 +0200
--- usbaudio.c 2006-12-28 22:35:26.000000000 +0100
***************
*** 3007,3012 ****
--- 3007,3065 ----
return 0;
}
+ /*
+ * Create a stream for an Edirol UA-101 interface.
+ * Copy, paste and modify from Edirol UA-1000
+ */
+ static int create_ua101_quirk(struct snd_usb_audio *chip,
+ struct usb_interface *iface,
+ const struct snd_usb_audio_quirk *quirk)
+ {
+ static const struct audioformat ua101_format = {
+ .format = SNDRV_PCM_FORMAT_S32_LE,
+ .fmt_type = USB_FORMAT_TYPE_I,
+ .altsetting = 1,
+ .altset_idx = 1,
+ .attributes = 0,
+ .rates = SNDRV_PCM_RATE_CONTINUOUS,
+ };
+ struct usb_host_interface *alts;
+ struct usb_interface_descriptor *altsd;
+ struct audioformat *fp;
+ int stream, err;
+
+ if (iface->num_altsetting != 2)
+ return -ENXIO;
+ alts = &iface->altsetting[1];
+ altsd = get_iface_desc(alts);
+ if (alts->extralen != 18 || alts->extra[1] != USB_DT_CS_INTERFACE ||
+ altsd->bNumEndpoints != 1)
+ return -ENXIO;
+
+ fp = kmalloc(sizeof(*fp), GFP_KERNEL);
+ if (!fp)
+ return -ENOMEM;
+ memcpy(fp, &ua101_format, sizeof(*fp));
+
+ fp->channels = alts->extra[11];
+ fp->iface = altsd->bInterfaceNumber;
+ fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
+ fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
+ fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
+ fp->rate_max = fp->rate_min = combine_triple(&alts->extra[15]);
+
+ stream = (fp->endpoint & USB_DIR_IN)
+ ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
+ err = add_audio_endpoint(chip, stream, fp);
+ if (err < 0) {
+ kfree(fp);
+ return err;
+ }
+ /* FIXME: playback must be synchronized to capture */
+ usb_set_interface(chip->dev, fp->iface, 0);
+ return 0;
+ }
+
static int snd_usb_create_quirk(struct snd_usb_audio *chip,
struct usb_interface *iface,
const struct snd_usb_audio_quirk *quirk);
***************
*** 3188,3193 ****
--- 3241,3247 ----
[QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk,
[QUIRK_AUDIO_EDIROL_UA700_UA25] = create_ua700_ua25_quirk,
[QUIRK_AUDIO_EDIROL_UA1000] = create_ua1000_quirk,
+ [QUIRK_AUDIO_EDIROL_UA101] = create_ua101_quirk,
};
if (quirk->type < QUIRK_TYPE_COUNT) {
*** /usr/src/linux-source-2.6.18/sound/usb/usbaudio.h 2006-09-20 05:42:06.000000000 +0200
--- usbaudio.h 2006-12-28 17:01:50.000000000 +0100
***************
*** 159,164 ****
--- 159,165 ----
QUIRK_AUDIO_FIXED_ENDPOINT,
QUIRK_AUDIO_EDIROL_UA700_UA25,
QUIRK_AUDIO_EDIROL_UA1000,
+ QUIRK_AUDIO_EDIROL_UA101,
QUIRK_TYPE_COUNT
};
*** /usr/src/linux-source-2.6.18/sound/usb/usbquirks.h 2006-09-20 05:42:06.000000000 +0200
--- usbquirks.h 2006-12-28 22:32:56.000000000 +0100
***************
*** 1093,1099 ****
}
}
},
! /* TODO: add Edirol UA-101 support */
{
/* has ID 0x0081 when not in "Advanced Driver" mode */
USB_DEVICE(0x0582, 0x0080),
--- 1093,1129 ----
}
}
},
! /* Roland UA-101 in High-Speed Mode only */
! {
! USB_DEVICE(0x0582, 0x007d),
! .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
! .vendor_name = "Roland",
! .product_name = "UA-101",
! .ifnum = QUIRK_ANY_INTERFACE,
! .type = QUIRK_COMPOSITE,
! .data = (const struct snd_usb_audio_quirk[]) {
! {
! .ifnum = 0,
! .type = QUIRK_AUDIO_EDIROL_UA101
! },
! {
! .ifnum = 1,
! .type = QUIRK_AUDIO_EDIROL_UA101
! },
! {
! .ifnum = 2,
! .type = QUIRK_MIDI_FIXED_ENDPOINT,
! .data = & (const struct snd_usb_midi_endpoint_info) {
! .out_cables = 0x0001,
! .in_cables = 0x0001
! }
! },
! {
! .ifnum = -1
! }
! }
! }
! },
{
/* has ID 0x0081 when not in "Advanced Driver" mode */
USB_DEVICE(0x0582, 0x0080),
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