Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / sound / firewire / oxfw / oxfw-proc.c

diff --git a/kernel/sound/firewire/oxfw/oxfw-proc.c b/kernel/sound/firewire/oxfw/oxfw-proc.c
new file mode 100644 (file)
index 0000000..8ba4f9f
--- /dev/null
+++ b/kernel/sound/firewire/oxfw/oxfw-proc.c
@@ -0,0 +1,113 @@
+/*
+ * oxfw_proc.c - a part of driver for OXFW970/971 based devices
+ *
+ * Copyright (c) 2014 Takashi Sakamoto
+ *
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#include "./oxfw.h"
+
+static void proc_read_formation(struct snd_info_entry *entry,
+                               struct snd_info_buffer *buffer)
+{
+       struct snd_oxfw *oxfw = entry->private_data;
+       struct snd_oxfw_stream_formation formation, curr;
+       u8 *format;
+       char flag;
+       int i, err;
+
+       /* Show input. */
+       err = snd_oxfw_stream_get_current_formation(oxfw,
+                                                   AVC_GENERAL_PLUG_DIR_IN,
+                                                   &curr);
+       if (err < 0)
+               return;
+
+       snd_iprintf(buffer, "Input Stream to device:\n");
+       snd_iprintf(buffer, "\tRate\tPCM\tMIDI\n");
+       for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) {
+               format = oxfw->rx_stream_formats[i];
+               if (format == NULL)
+                       continue;
+
+               err = snd_oxfw_stream_parse_format(format, &formation);
+               if (err < 0)
+                       continue;
+
+               if (memcmp(&formation, &curr, sizeof(curr)) == 0)
+                       flag = '*';
+               else
+                       flag = ' ';
+
+               snd_iprintf(buffer, "%c\t%d\t%d\t%d\n", flag,
+                           formation.rate, formation.pcm, formation.midi);
+       }
+
+       if (!oxfw->has_output)
+               return;
+
+       /* Show output. */
+       err = snd_oxfw_stream_get_current_formation(oxfw,
+                                                   AVC_GENERAL_PLUG_DIR_OUT,
+                                                   &curr);
+       if (err < 0)
+               return;
+
+       snd_iprintf(buffer, "Output Stream from device:\n");
+       snd_iprintf(buffer, "\tRate\tPCM\tMIDI\n");
+       for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) {
+               format = oxfw->tx_stream_formats[i];
+               if (format == NULL)
+                       continue;
+
+               err = snd_oxfw_stream_parse_format(format, &formation);
+               if (err < 0)
+                       continue;
+
+               if (memcmp(&formation, &curr, sizeof(curr)) == 0)
+                       flag = '*';
+               else
+                       flag = ' ';
+
+               snd_iprintf(buffer, "%c\t%d\t%d\t%d\n", flag,
+                           formation.rate, formation.pcm, formation.midi);
+       }
+}
+
+static void add_node(struct snd_oxfw *oxfw, struct snd_info_entry *root,
+                    const char *name,
+                    void (*op)(struct snd_info_entry *e,
+                               struct snd_info_buffer *b))
+{
+       struct snd_info_entry *entry;
+
+       entry = snd_info_create_card_entry(oxfw->card, name, root);
+       if (entry == NULL)
+               return;
+
+       snd_info_set_text_ops(entry, oxfw, op);
+       if (snd_info_register(entry) < 0)
+               snd_info_free_entry(entry);
+}
+
+void snd_oxfw_proc_init(struct snd_oxfw *oxfw)
+{
+       struct snd_info_entry *root;
+
+       /*
+        * All nodes are automatically removed at snd_card_disconnect(),
+        * by following to link list.
+        */
+       root = snd_info_create_card_entry(oxfw->card, "firewire",
+                                         oxfw->card->proc_root);
+       if (root == NULL)
+               return;
+       root->mode = S_IFDIR | S_IRUGO | S_IXUGO;
+       if (snd_info_register(root) < 0) {
+               snd_info_free_entry(root);
+               return;
+       }
+
+       add_node(oxfw, root, "formation", proc_read_formation);
+}