Commit 16bafa79 authored by Alberto Aguirre's avatar Alberto Aguirre Committed by Takashi Iwai
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ALSA: usb-audio: add boot quirk for Axe-Fx III 



Wait for Axe-Fx III to fully bootup before initializing card.

Signed-off-by: default avatarAlberto Aguirre <albaguirre@gmail.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 08f9f448

sound/usb/quirks.c

+32 −0
Original line number Diff line number Diff line
@@ -851,6 +851,36 @@ static int snd_usb_mbox2_boot_quirk(struct usb_device *dev) 
	return 0; /* Successful boot */

}



static int snd_usb_axefx3_boot_quirk(struct usb_device *dev)

{

	int err;



	dev_dbg(&dev->dev, "Waiting for Axe-Fx III to boot up...\n");



	/* If the Axe-Fx III has not fully booted, it will timeout when trying

	 * to enable the audio streaming interface. A more generous timeout is

	 * used here to detect when the Axe-Fx III has finished booting as the

	 * set interface message will be acked once it has

	 */

	err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),

				USB_REQ_SET_INTERFACE, USB_RECIP_INTERFACE,

				1, 1, NULL, 0, 120000);

	if (err < 0) {

		dev_err(&dev->dev,

			"failed waiting for Axe-Fx III to boot: %d\n", err);

		return err;

	}



	dev_dbg(&dev->dev, "Axe-Fx III is now ready\n");



	err = usb_set_interface(dev, 1, 0);

	if (err < 0)

		dev_dbg(&dev->dev,

			"error stopping Axe-Fx III interface: %d\n", err);



	return 0;

}



/*

 * Setup quirks

 */
@@ -1026,6 +1056,8 @@ int snd_usb_apply_boot_quirk(struct usb_device *dev, 
		return snd_usb_fasttrackpro_boot_quirk(dev);

	case USB_ID(0x047f, 0xc010): /* Plantronics Gamecom 780 */

		return snd_usb_gamecon780_boot_quirk(dev);

	case USB_ID(0x2466, 0x8010): /* Fractal Audio Axe-Fx 3 */

		return snd_usb_axefx3_boot_quirk(dev);

	}



	return 0;