ALSA: usb-audio: automatically detect feedback format

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / sound / usb / card.h

diff --git a/sound/usb/card.h b/sound/usb/card.h
index 1febf2f23754afc63eb5469450ac8da6a97f23b3..ae4251d5abf7bc9a1b9c15dc9d5d8e947627337a 100644 (file)
--- a/sound/usb/card.h
+++ b/sound/usb/card.h
@@ -62,12 +62,14 @@ struct snd_usb_substream {
        unsigned int syncinterval;  /* P for adaptive mode, 0 otherwise */
        unsigned int freqn;      /* nominal sampling rate in fs/fps in Q16.16 format */
        unsigned int freqm;      /* momentary sampling rate in fs/fps in Q16.16 format */
+       int          freqshift;  /* how much to shift the feedback value to get Q16.16 */
        unsigned int freqmax;    /* maximum sampling rate, used for buffer management */
        unsigned int phase;      /* phase accumulator */
        unsigned int maxpacksize;       /* max packet size in bytes */
        unsigned int maxframesize;      /* max packet size in frames */
        unsigned int curpacksize;       /* current packet size in bytes (for capture) */
        unsigned int curframesize;      /* current packet size in frames (for capture) */
+       unsigned int syncmaxsize;       /* sync endpoint packet size */
        unsigned int fill_max: 1;       /* fill max packet size always */
        unsigned int txfr_quirk:1;      /* allow sub-frame alignment */
        unsigned int fmt_type;          /* USB audio format type (1-3) */