ALSA: dice: add proc node for stream formation

Products with DICE interface in market can support variable stream
formats for three levels of sampling transmission frequencies. To
record these formats, a proxy structure got several fields in former
commit.

This commit adds a proc node to output the stream formats for debugging
purpose.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/firewire/dice/dice-proc.c b/sound/firewire/dice/dice-proc.c
index 43b130b..faf8c85 100644 (file)
--- a/sound/firewire/dice/dice-proc.c
+++ b/sound/firewire/dice/dice-proc.c
@@ -243,6 +243,40 @@ static void dice_proc_read(struct snd_info_entry *entry,
        }
 }
 
+static void dice_proc_read_formation(struct snd_info_entry *entry,
+                                    struct snd_info_buffer *buffer)
+{
+       static const char *const rate_labels[] = {
+               [SND_DICE_RATE_MODE_LOW]        = "low",
+               [SND_DICE_RATE_MODE_MIDDLE]     = "middle",
+               [SND_DICE_RATE_MODE_HIGH]       = "high",
+       };
+       struct snd_dice *dice = entry->private_data;
+       int i, j;
+
+       snd_iprintf(buffer, "Output stream from unit:\n");
+       for (i = 0; i < SND_DICE_RATE_MODE_COUNT; ++i)
+               snd_iprintf(buffer, "\t%s", rate_labels[i]);
+       snd_iprintf(buffer, "\tMIDI\n");
+       for (i = 0; i < MAX_STREAMS; ++i) {
+               snd_iprintf(buffer, "Tx %u:", i);
+               for (j = 0; j < SND_DICE_RATE_MODE_COUNT; ++j)
+                       snd_iprintf(buffer, "\t%u", dice->tx_pcm_chs[i][j]);
+               snd_iprintf(buffer, "\t%u\n", dice->tx_midi_ports[i]);
+       }
+
+       snd_iprintf(buffer, "Input stream to unit:\n");
+       for (i = 0; i < SND_DICE_RATE_MODE_COUNT; ++i)
+               snd_iprintf(buffer, "\t%s", rate_labels[i]);
+       snd_iprintf(buffer, "\n");
+       for (i = 0; i < MAX_STREAMS; ++i) {
+               snd_iprintf(buffer, "Rx %u:", i);
+               for (j = 0; j < SND_DICE_RATE_MODE_COUNT; ++j)
+                       snd_iprintf(buffer, "\t%u", dice->rx_pcm_chs[i][j]);
+               snd_iprintf(buffer, "\t%u\n", dice->rx_midi_ports[i]);
+       }
+}
+
 static void add_node(struct snd_dice *dice, struct snd_info_entry *root,
                     const char *name,
                     void (*op)(struct snd_info_entry *entry,
@@ -278,4 +312,5 @@ void snd_dice_create_proc(struct snd_dice *dice)
        }
 
        add_node(dice, root, "dice", dice_proc_read);
+       add_node(dice, root, "formation", dice_proc_read_formation);
 }