From 54a8c500d5b80c83e0f14cbcfcfd4a84abff8a80 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Fri, 11 Feb 2011 11:08:06 +0000 Subject: ALSA: usb-audio: add support for Native Instruments MK2 devices The MK2 generation of Native Instruments' sound cards are in fact compliant to the USB audio standard of version 2 and other approved USB standards. However, they come up as vendor-specific device when first connected but can be told to come up with a new set of descriptors upon their next enumeration. The interfaces announced by the new descriptors will be handled by the kernel's class drivers. This is done by issuing a vendor specific device request and sending the device to reset. There are also some vendor-specific USB requests for some mixer elements that can't be exported in a standard compliant way. The driver now supports them with quirks handling mechanisms. Signed-off-by: Daniel Mack Signed-off-by: Takashi Iwai --- sound/usb/mixer_quirks.c | 153 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 153 insertions(+) (limited to 'sound/usb/mixer_quirks.c') diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c index 782f741cd00a..3fe612a369a7 100644 --- a/sound/usb/mixer_quirks.c +++ b/sound/usb/mixer_quirks.c @@ -346,6 +346,141 @@ static int snd_xonar_u1_controls_create(struct usb_mixer_interface *mixer) return 0; } +/* Native Instruments device quirks */ + +#define _MAKE_NI_CONTROL(bRequest,wIndex) ((bRequest) << 16 | (wIndex)) + +static int snd_nativeinstruments_control_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol); + struct usb_device *dev = mixer->chip->dev; + u8 bRequest = (kcontrol->private_value >> 16) & 0xff; + u16 wIndex = kcontrol->private_value & 0xffff; + u8 tmp; + + int ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), bRequest, + USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, + 0, cpu_to_le16(wIndex), + &tmp, sizeof(tmp), 1000); + + if (ret < 0) { + snd_printk(KERN_ERR + "unable to issue vendor read request (ret = %d)", ret); + return ret; + } + + ucontrol->value.integer.value[0] = tmp; + + return 0; +} + +static int snd_nativeinstruments_control_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol); + struct usb_device *dev = mixer->chip->dev; + u8 bRequest = (kcontrol->private_value >> 16) & 0xff; + u16 wIndex = kcontrol->private_value & 0xffff; + u16 wValue = ucontrol->value.integer.value[0]; + + int ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), bRequest, + USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, + cpu_to_le16(wValue), cpu_to_le16(wIndex), + NULL, 0, 1000); + + if (ret < 0) { + snd_printk(KERN_ERR + "unable to issue vendor write request (ret = %d)", ret); + return ret; + } + + return 0; +} + +static struct snd_kcontrol_new snd_nativeinstruments_ta6_mixers[] = { + { + .name = "Direct Thru Channel A", + .private_value = _MAKE_NI_CONTROL(0x01, 0x03), + }, + { + .name = "Direct Thru Channel B", + .private_value = _MAKE_NI_CONTROL(0x01, 0x05), + }, + { + .name = "Phono Input Channel A", + .private_value = _MAKE_NI_CONTROL(0x02, 0x03), + }, + { + .name = "Phono Input Channel B", + .private_value = _MAKE_NI_CONTROL(0x02, 0x05), + }, +}; + +static struct snd_kcontrol_new snd_nativeinstruments_ta10_mixers[] = { + { + .name = "Direct Thru Channel A", + .private_value = _MAKE_NI_CONTROL(0x01, 0x03), + }, + { + .name = "Direct Thru Channel B", + .private_value = _MAKE_NI_CONTROL(0x01, 0x05), + }, + { + .name = "Direct Thru Channel C", + .private_value = _MAKE_NI_CONTROL(0x01, 0x07), + }, + { + .name = "Direct Thru Channel D", + .private_value = _MAKE_NI_CONTROL(0x01, 0x09), + }, + { + .name = "Phono Input Channel A", + .private_value = _MAKE_NI_CONTROL(0x02, 0x03), + }, + { + .name = "Phono Input Channel B", + .private_value = _MAKE_NI_CONTROL(0x02, 0x05), + }, + { + .name = "Phono Input Channel C", + .private_value = _MAKE_NI_CONTROL(0x02, 0x07), + }, + { + .name = "Phono Input Channel D", + .private_value = _MAKE_NI_CONTROL(0x02, 0x09), + }, +}; + +static int snd_nativeinstruments_create_mixer(struct usb_mixer_interface *mixer, + const struct snd_kcontrol_new *kc, + unsigned int count) +{ + int i, err = 0; + struct snd_kcontrol_new template = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .get = snd_nativeinstruments_control_get, + .put = snd_nativeinstruments_control_put, + .info = snd_ctl_boolean_mono_info, + }; + + for (i = 0; i < count; i++) { + struct snd_kcontrol *c; + + template.name = kc[i].name; + template.private_value = kc[i].private_value; + + c = snd_ctl_new1(&template, mixer); + err = snd_ctl_add(mixer->chip->card, c); + + if (err < 0) + break; + } + + return err; +} + void snd_emuusb_set_samplerate(struct snd_usb_audio *chip, unsigned char samplerate_id) { @@ -391,6 +526,24 @@ int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer) return err; } + /* Traktor Audio 6 */ + if (mixer->chip->usb_id == USB_ID(0x17cc, 0x1011)) { + err = snd_nativeinstruments_create_mixer(mixer, + snd_nativeinstruments_ta6_mixers, + ARRAY_SIZE(snd_nativeinstruments_ta6_mixers)); + if (err < 0) + return err; + } + + /* Traktor Audio 10 */ + if (mixer->chip->usb_id == USB_ID(0x17cc, 0x1021)) { + err = snd_nativeinstruments_create_mixer(mixer, + snd_nativeinstruments_ta10_mixers, + ARRAY_SIZE(snd_nativeinstruments_ta10_mixers)); + if (err < 0) + return err; + } + return 0; } -- cgit v1.2.2