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-rw-r--r--sound/firewire/oxfw/oxfw-proc.c104
1 files changed, 104 insertions, 0 deletions
diff --git a/sound/firewire/oxfw/oxfw-proc.c b/sound/firewire/oxfw/oxfw-proc.c
new file mode 100644
index 000000000..260c60364
--- /dev/null
+++ b/sound/firewire/oxfw/oxfw-proc.c
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * oxfw_proc.c - a part of driver for OXFW970/971 based devices
+ *
+ * Copyright (c) 2014 Takashi Sakamoto
+ */
+
+#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)
+ snd_info_set_text_ops(entry, oxfw, op);
+}
+
+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 | 0555;
+
+ add_node(oxfw, root, "formation", proc_read_formation);
+}