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ALSA: usb-audio: Add duplex mode for Digidesign Mbox 1 and enable mixer 

This patch provides duplex support for the Digidesign Mbox 1 sound
card and has been a work in progress for about a year.
Users have confirmed on my website that previous versions of this patch
have worked on the hardware and I have been testing extensively.

It also enables the mixer control for providing clock source
selector based on the previous patch.
The sample rate has been hardcoded to 48kHz because it works better with
the S/PDIF sync mode when the sample rate is locked.  This is the
highest rate that the device supports and no loss of functionality
is observed by restricting the sample rate apart from the inability to selec
a lower rate.

Signed-off-by: Damien Zammit <damien@zamaudio.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Damien Zammit 2014-11-12 01:09:55 +11:00 committed by Takashi Iwai
parent d497a82fb1
commit c63fcb9b67
1 changed files with 32 additions and 9 deletions
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41
sound/usb/quirks-table.h
View File

@ -2944,7 +2944,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
.data = (const struct snd_usb_audio_quirk[]){
{
.ifnum = 0,
.type = QUIRK_IGNORE_INTERFACE,
.type = QUIRK_AUDIO_STANDARD_MIXER,
},
{
.ifnum = 1,
@ -2955,16 +2955,40 @@ YAMAHA_DEVICE(0x7010, "UB99"),
.iface = 1,
.altsetting = 1,
.altset_idx = 1,
.attributes = UAC_EP_CS_ATTR_SAMPLE_RATE,
.attributes = 0x4,
.endpoint = 0x02,
.ep_attr = 0x01,
.rates = SNDRV_PCM_RATE_44100 |
SNDRV_PCM_RATE_48000,
.rate_min = 44100,
.ep_attr = USB_ENDPOINT_XFER_ISOC |
USB_ENDPOINT_SYNC_SYNC,
.maxpacksize = 0x130,
.rates = SNDRV_PCM_RATE_48000,
.rate_min = 48000,
.rate_max = 48000,
.nr_rates = 2,
.nr_rates = 1,
.rate_table = (unsigned int[]) {
44100, 48000
48000
}
}
},
{
.ifnum = 1,
.type = QUIRK_AUDIO_FIXED_ENDPOINT,
.data = &(const struct audioformat) {
.formats = SNDRV_PCM_FMTBIT_S24_3BE,
.channels = 2,
.iface = 1,
.altsetting = 1,
.altset_idx = 1,
.attributes = 0x4,
.endpoint = 0x81,
.ep_attr = USB_ENDPOINT_XFER_ISOC |
USB_ENDPOINT_SYNC_ASYNC,
.maxpacksize = 0x130,
.rates = SNDRV_PCM_RATE_48000,
.rate_min = 48000,
.rate_max = 48000,
.nr_rates = 1,
.rate_table = (unsigned int[]) {
48000
}
}
},
@ -2972,7 +2996,6 @@ YAMAHA_DEVICE(0x7010, "UB99"),
.ifnum = -1
}
}
}
},