ALSA: usb-audio: automatically detect feedback format

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / sound / usb / proc.c

diff --git a/sound/usb/proc.c b/sound/usb/proc.c
index f5e3f356b95ff4277e98ad5ad60518f2cac15aa7..961c9a2506865b9a84cb337606e80b21705f2b04 100644 (file)
--- a/sound/usb/proc.c
+++ b/sound/usb/proc.c
@@ -107,7 +107,7 @@ static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct s
                        }
                        snd_iprintf(buffer, "\n");
                }
-               if (snd_usb_get_speed(subs->dev) == USB_SPEED_HIGH)
+               if (snd_usb_get_speed(subs->dev) != USB_SPEED_FULL)
                        snd_iprintf(buffer, "    Data packet interval: %d us\n",
                                    125 * (1 << fp->datainterval));
                // snd_iprintf(buffer, "    Max Packet Size = %d\n", fp->maxpacksize);
@@ -132,6 +132,11 @@ static void proc_dump_substream_status(struct snd_usb_substream *subs, struct sn
                            ? get_full_speed_hz(subs->freqm)
                            : get_high_speed_hz(subs->freqm),
                            subs->freqm >> 16, subs->freqm & 0xffff);
+               if (subs->freqshift != INT_MIN)
+                       snd_iprintf(buffer, "    Feedback Format = %d.%d\n",
+                                   (subs->syncmaxsize > 3 ? 32 : 24)
+                                               - (16 - subs->freqshift),
+                                   16 - subs->freqshift);
        } else {
                snd_iprintf(buffer, "  Status: Stop\n");
        }