From: Daniel Mack Date: Fri, 11 Feb 2011 11:08:06 +0000 (+0000) Subject: ALSA: usb-audio: add support for Native Instruments MK2 devices X-Git-Tag: v2.6.39-rc1~424^2^2~43 X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=54a8c500d5b80c83e0f14cbcfcfd4a84abff8a80;p=pandora-kernel.git 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 --- 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; } diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h index 35999874d301..e1e245d0e5ec 100644 --- a/sound/usb/quirks-table.h +++ b/sound/usb/quirks-table.h @@ -2283,6 +2283,20 @@ YAMAHA_DEVICE(0x7010, "UB99"), } }, +/* Native Instruments MK2 series */ +{ + /* Traktor Audio 6 */ + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x17cc, + .idProduct = 0x1010, +}, +{ + /* Traktor Audio 10 */ + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x17cc, + .idProduct = 0x1020, +}, + /* Miditech devices */ { USB_DEVICE(0x4752, 0x0011), diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index cf8bf088394b..e55bd1cac77d 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -424,6 +424,34 @@ static int snd_usb_accessmusic_boot_quirk(struct usb_device *dev) return 0; } +/* + * Some sound cards from Native Instruments are in fact compliant to the USB + * audio standard of version 2 and other approved USB standards, even though + * they come up as vendor-specific device when first connected. + * + * However, they can be told to come up with a new set of descriptors + * upon their next enumeration, and the interfaces announced by the new + * descriptors will then be handled by the kernel's class drivers. As the + * product ID will also change, no further checks are required. + */ + +static int snd_usb_nativeinstruments_boot_quirk(struct usb_device *dev) +{ + int ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), + 0xaf, USB_TYPE_VENDOR | USB_RECIP_DEVICE, + cpu_to_le16(1), 0, NULL, 0, 1000); + + if (ret < 0) + return ret; + + usb_reset_device(dev); + + /* return -EAGAIN, so the creation of an audio interface for this + * temporary device is aborted. The device will reconnect with a + * new product ID */ + return -EAGAIN; +} + /* * Setup quirks */ @@ -510,6 +538,11 @@ int snd_usb_apply_boot_quirk(struct usb_device *dev, if (id == USB_ID(0x133e, 0x0815)) return snd_usb_accessmusic_boot_quirk(dev); + /* Native Instruments Devices */ + if (id == USB_ID(0x17cc, 0x1010) || /* Traktor Audio 6 */ + id == USB_ID(0x17cc, 0x1020)) /* Traktor Audio 10 */ + return snd_usb_nativeinstruments_boot_quirk(dev); + return 0; }