@@ -1470,6 +1470,23 @@ static void set_format_emu_quirk(struct snd_usb_substream *subs,
subs->pkt_offset_adj = (emu_samplerate_id >= EMU_QUIRK_SR_176400HZ) ? 4 : 0;
}
+static int pioneer_djm_set_format_quirk(struct snd_usb_substream *subs,
+ u16 windex)
+{
+ unsigned int cur_rate = subs->data_endpoint->cur_rate;
+ u8 sr[3];
+ // Convert to little endian
+ sr[0] = cur_rate & 0xff;
+ sr[1] = (cur_rate >> 8) & 0xff;
+ sr[2] = (cur_rate >> 16) & 0xff;
+ usb_set_interface(subs->dev, 0, 1);
+ // we should derive windex from fmt-sync_ep but it's not set
+ snd_usb_ctl_msg(subs->stream->chip->dev,
+ usb_rcvctrlpipe(subs->stream->chip->dev, 0),
+ 0x01, 0x22, 0x0100, windex, &sr, 0x0003);
+ return 0;
+}
+
void snd_usb_set_format_quirk(struct snd_usb_substream *subs,
const struct audioformat *fmt)
{
@@ -1483,6 +1500,9 @@ void snd_usb_set_format_quirk(struct snd_usb_substream *subs,
case USB_ID(0x534d, 0x2109): /* MacroSilicon MS2109 */
subs->stream_offset_adj = 2;
break;
+ case USB_ID(0x2b73, 0x0013): /* Pioneer DJM-450 */
+ pioneer_djm_set_format_quirk(subs, 0x0082);
+ break;
}
}
Like the DJM-750, ensure that the format control message is passed to the device when opening a stream. It seems as though fmt->sync_ep is not always set when this function is called hence the passing of the value at the call site. If this can be fixed, fmt->sync_up should be used as the wvalue. There doesn't seem to be a "cpu_to_le24" type function defined hence for the open code but I did see a similar thing done in Bluez lib. Perhaps we can get these definitions defined in byteorder.h. See hci_cpu_to_le24 in include/net/bluetooth/hci.h:2543 for similar usage. Signed-off-by: Olivia Mackintosh <livvy@base.nu> --- sound/usb/quirks.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)