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Subject[PATCH 5.4 040/168] ALSA: usb-audio: Add Pioneer DJ DJM-250MK2 quirk
Date
From: František Kučera <franta-linux@frantovo.cz>

[ Upstream commit 73d8c94084341e2895169a0462dbc18167f01683 ]

Pioneer DJ DJM-250MK2 is a mixer that acts like a USB sound card.
The MIDI controller part is standard but the PCM part is "vendor specific".
Output is enabled by this quirk: 8 channels, 48 000 Hz, S24_3LE.
Input is not working.

Signed-off-by: František Kučera <franta-linux@frantovo.cz>
Link: https://lore.kernel.org/r/20200401095907.3387-1-konference@frantovo.cz
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/usb/quirks-table.h | 42 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)

diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index d187aa6d50db0..dcaf9eed9a415 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -3592,5 +3592,47 @@ AU0828_DEVICE(0x2040, 0x7270, "Hauppauge", "HVR-950Q"),
}
}
},
+{
+ /*
+ * Pioneer DJ DJM-250MK2
+ * PCM is 8 channels out @ 48 fixed (endpoints 0x01).
+ * The output from computer to the mixer is usable.
+ *
+ * The input (phono or line to computer) is not working.
+ * It should be at endpoint 0x82 and probably also 8 channels,
+ * but it seems that it works only with Pioneer proprietary software.
+ * Even on officially supported OS, the Audacity was unable to record
+ * and Mixxx to recognize the control vinyls.
+ */
+ USB_DEVICE_VENDOR_SPEC(0x2b73, 0x0017),
+ .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
+ .ifnum = QUIRK_ANY_INTERFACE,
+ .type = QUIRK_COMPOSITE,
+ .data = (const struct snd_usb_audio_quirk[]) {
+ {
+ .ifnum = 0,
+ .type = QUIRK_AUDIO_FIXED_ENDPOINT,
+ .data = &(const struct audioformat) {
+ .formats = SNDRV_PCM_FMTBIT_S24_3LE,
+ .channels = 8, // outputs
+ .iface = 0,
+ .altsetting = 1,
+ .altset_idx = 1,
+ .endpoint = 0x01,
+ .ep_attr = USB_ENDPOINT_XFER_ISOC|
+ USB_ENDPOINT_SYNC_ASYNC,
+ .rates = SNDRV_PCM_RATE_48000,
+ .rate_min = 48000,
+ .rate_max = 48000,
+ .nr_rates = 1,
+ .rate_table = (unsigned int[]) { 48000 }
+ }
+ },
+ {
+ .ifnum = -1
+ }
+ }
+ }
+},

#undef USB_DEVICE_VENDOR_SPEC
--
2.20.1


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