[PATCH] ALSA: usb-audio: Apply implicit feedback mode for BOSS devices
Takashi Iwai
tiwai at suse.de
Wed Apr 21 10:59:43 CEST 2021
On Wed, 21 Apr 2021 06:59:51 +0200,
Lucas wrote:
>
> First, thanks very much for trying to cover all devices through detection! I
> had hoped something like this could be done, but sadly, it has created a mixed
> result:
>
> Roland VG-99 Perfect!:
> arecord -D hw:VG99 -f S24_3LE -r 44100 -c 2 ./file.wav
> Recording WAVE './file.wav' : Signed 24 bit Little Endian in 3bytes, Rate
> 44100 Hz, Stereo
> ^CAborted by signal Interrupt...
>
> aplay -D hw:VG99 -f S24_3LE -r 44100 -c 2 ./file.wav
> Playing WAVE './file.wav' : Signed 24 bit Little Endian in 3bytes, Rate 44100
> Hz, Stereo
>
> Roland INTEGRA-7 doesn't capture, but plays perfectly (only 96 kHz mode
> tested):
> arecord -D hw:INTEGRA7 -f S32_LE -r 96000 -c 2 ./file.wav
> Recording WAVE './file.wav' : Signed 32 bit Little Endian, Rate 96000 Hz,
> Stereo
> arecord: pcm_read:2153: read error: Input/output error
>
> aplay -D hw:INTEGRA7 -f S32_LE -r 96000 -c 2 ./other-file.wav
> Playing WAVE './other-file.wav' : Signed 32 bit Little Endian, Rate 96000 Hz,
> Stereo
Hm, that's bad. And INTEGRA7 did work before the patching?
I saw that this has the right EP numbers (0x0d and 0x8e), so the
static quirk entry was correct.
>
> Roland R-26 doesn't capture, but plays perfectly (only 96 kHz mode tested):
R-26 seems also to be the one with both ASYNC and EP 0x0d/0x8e, so the
same reason as INTEGRA7.
> arecord -D hw:R26AUDIO -f S32_LE -r 96000 -c 2 ./file.wav
> Recording WAVE './file.wav' : Signed 32 bit Little Endian, Rate 96000 Hz,
> Stereo
> arecord: pcm_read:2153: read error: Input/output error
>
> aplay -D hw:R26AUDIO -f S32_LE -r 96000 -c 2 ./other-file.wav
> Playing WAVE './other-file.wav' : Signed 32 bit Little Endian, Rate 96000 Hz,
> Stereo
>
> Roland Boutique D-05 doesn't capture, but plays perfectly:
OK, this one looks slightly different.
D-05 has two EPs in each interface, both are ASYNC and 0x0d/0x8e.
So another adjustment might be needed here.
> EDIROL UA-101 full-speed (USB 1.1) and high-speed (USB 2.0) not detected for
> capture or playback (only 48 kHz mode tested):
This is a different driver, so we can forget for now.
> I'm guessing another look at "lsusb -v" would help, but don't know what to
> look for and have run out of time tonight.
Could you post the archive of your lsusb -v outputs? Put in a tarball
and post with attachment.
Below is a revised patch. Let me know if this works better.
thanks,
Takashi
--- a/sound/usb/implicit.c
+++ b/sound/usb/implicit.c
@@ -79,6 +79,7 @@ static const struct snd_usb_implicit_fb_match playback_implicit_fb_quirks[] = {
/* Implicit feedback quirk table for capture: only FIXED type */
static const struct snd_usb_implicit_fb_match capture_implicit_fb_quirks[] = {
+#if 0
IMPLICIT_FB_FIXED_DEV(0x0582, 0x00a6, 0x0d, 0x01), /* Roland JUNO-G */
IMPLICIT_FB_FIXED_DEV(0x0582, 0x00a9, 0x0d, 0x01), /* Roland MC-808 */
IMPLICIT_FB_FIXED_DEV(0x0582, 0x00ad, 0x0d, 0x01), /* Roland SH-201 */
@@ -146,6 +147,7 @@ static const struct snd_usb_implicit_fb_match capture_implicit_fb_quirks[] = {
IMPLICIT_FB_BOTH_DEV(0x0582, 0x01fd, 0x0d, 0x01), /* Roland Boutique SH-01A */
IMPLICIT_FB_BOTH_DEV(0x0582, 0x01ff, 0x0d, 0x01), /* Roland Boutique D-05 */
IMPLICIT_FB_BOTH_DEV(0x0582, 0x0203, 0x0d, 0x01), /* BOSS AD-10 */
+#endif
{} /* terminator */
};
@@ -204,30 +206,70 @@ static int add_generic_uac2_implicit_fb(struct snd_usb_audio *chip,
ifnum, alts);
}
-/* Like the function above, but specific to Roland with vendor class and hack */
+static bool roland_sanity_check_iface(struct usb_host_interface *alts)
+{
+ if (alts->desc.bInterfaceClass != USB_CLASS_VENDOR_SPEC ||
+ (alts->desc.bInterfaceSubClass != 2 &&
+ alts->desc.bInterfaceProtocol != 2) ||
+ alts->desc.bNumEndpoints < 1)
+ return false;
+ return true;
+}
+
+/* Like the UAC2 case above, but specific to Roland with vendor class and hack */
static int add_roland_implicit_fb(struct snd_usb_audio *chip,
struct audioformat *fmt,
- unsigned int ifnum,
- unsigned int altsetting)
+ struct usb_host_interface *alts)
{
- struct usb_host_interface *alts;
struct usb_endpoint_descriptor *epd;
- alts = snd_usb_get_host_interface(chip, ifnum, altsetting);
- if (!alts)
+ if (!roland_sanity_check_iface(alts))
return 0;
- if (alts->desc.bInterfaceClass != USB_CLASS_VENDOR_SPEC ||
- (alts->desc.bInterfaceSubClass != 2 &&
- alts->desc.bInterfaceProtocol != 2) ||
- alts->desc.bNumEndpoints < 1)
+ /* only when both streams are with ASYNC type */
+ epd = get_endpoint(alts, 0);
+ if (!usb_endpoint_is_isoc_out(epd) ||
+ (epd->bmAttributes & USB_ENDPOINT_SYNCTYPE) != USB_ENDPOINT_SYNC_ASYNC)
+ return 0;
+
+ /* check capture EP */
+ alts = snd_usb_get_host_interface(chip,
+ alts->desc.bInterfaceNumber + 1,
+ alts->desc.bAlternateSetting);
+ if (!alts || !roland_sanity_check_iface(alts))
return 0;
epd = get_endpoint(alts, 0);
if (!usb_endpoint_is_isoc_in(epd) ||
- (epd->bmAttributes & USB_ENDPOINT_USAGE_MASK) !=
- USB_ENDPOINT_USAGE_IMPLICIT_FB)
+ (epd->bmAttributes & USB_ENDPOINT_SYNCTYPE) != USB_ENDPOINT_SYNC_ASYNC)
return 0;
+ chip->playback_first = 1;
return add_implicit_fb_sync_ep(chip, fmt, epd->bEndpointAddress, 0,
- ifnum, alts);
+ alts->desc.bInterfaceNumber, alts);
+}
+
+/* capture quirk for Roland device; always full-duplex */
+static int add_roland_capture_quirk(struct snd_usb_audio *chip,
+ struct audioformat *fmt,
+ struct usb_host_interface *alts)
+{
+ struct usb_endpoint_descriptor *epd;
+
+ if (!roland_sanity_check_iface(alts))
+ return 0;
+ epd = get_endpoint(alts, 0);
+ if (!usb_endpoint_is_isoc_in(epd) ||
+ (epd->bmAttributes & USB_ENDPOINT_SYNCTYPE) != USB_ENDPOINT_SYNC_ASYNC)
+ return 0;
+
+ alts = snd_usb_get_host_interface(chip,
+ alts->desc.bInterfaceNumber - 1,
+ alts->desc.bAlternateSetting);
+ if (!alts || !roland_sanity_check_iface(alts))
+ return 0;
+ epd = get_endpoint(alts, 0);
+ if (!usb_endpoint_is_isoc_out(epd))
+ return 0;
+ return add_implicit_fb_sync_ep(chip, fmt, epd->bEndpointAddress, 0,
+ alts->desc.bInterfaceNumber, alts);
}
/* Playback and capture EPs on Pioneer devices share the same iface/altset
@@ -365,14 +407,8 @@ static int audioformat_implicit_fb_quirk(struct snd_usb_audio *chip,
}
/* Roland/BOSS implicit feedback with vendor spec class */
- if (attr == USB_ENDPOINT_SYNC_ASYNC &&
- alts->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC &&
- alts->desc.bInterfaceProtocol == 2 &&
- alts->desc.bNumEndpoints == 1 &&
- USB_ID_VENDOR(chip->usb_id) == 0x0582 /* Roland */) {
- if (add_roland_implicit_fb(chip, fmt,
- alts->desc.bInterfaceNumber + 1,
- alts->desc.bAlternateSetting))
+ if (USB_ID_VENDOR(chip->usb_id) == 0x0582) {
+ if (add_roland_implicit_fb(chip, fmt, alts) > 0)
return 1;
}
@@ -404,6 +440,13 @@ static int audioformat_capture_quirk(struct snd_usb_audio *chip,
if (p && (p->type == IMPLICIT_FB_FIXED || p->type == IMPLICIT_FB_BOTH))
return add_implicit_fb_sync_ep(chip, fmt, p->ep_num, 0,
p->iface, NULL);
+
+ /* Roland/BOSS need full-duplex streams */
+ if (USB_ID_VENDOR(chip->usb_id) == 0x0582) {
+ if (add_roland_capture_quirk(chip, fmt, alts) > 0)
+ return 1;
+ }
+
if (is_pioneer_implicit_fb(chip, alts))
return 1; /* skip the quirk, also don't handle generic sync EP */
return 0;
More information about the Alsa-devel
mailing list