This commit adds a proc node for debugging purpose.
Signed-off-by: Takashi Sakamoto o-takashi@sakamocchi.jp --- sound/firewire/motu/Makefile | 3 +- sound/firewire/motu/motu-proc.c | 73 +++++++++++++++++++++++++++++++++++++++++ sound/firewire/motu/motu.c | 2 ++ sound/firewire/motu/motu.h | 3 ++ 4 files changed, 80 insertions(+), 1 deletion(-) create mode 100644 sound/firewire/motu/motu-proc.c
diff --git a/sound/firewire/motu/Makefile b/sound/firewire/motu/Makefile index e41c693..de6ca3b 100644 --- a/sound/firewire/motu/Makefile +++ b/sound/firewire/motu/Makefile @@ -1,2 +1,3 @@ -snd-firewire-motu-objs := amdtp-motu.o motu-stream.o motu-transaction.o motu.o +snd-firewire-motu-objs := amdtp-motu.o motu-stream.o motu-transaction.o \ + motu-proc.o motu.o obj-m += snd-firewire-motu.o diff --git a/sound/firewire/motu/motu-proc.c b/sound/firewire/motu/motu-proc.c new file mode 100644 index 0000000..bc84537 --- /dev/null +++ b/sound/firewire/motu/motu-proc.c @@ -0,0 +1,73 @@ +/* + * motu-proc.c - a part of driver for MOTU FireWire series + * + * Copyright (c) 2015 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "./motu.h" + +static const char *const clock_names[] = { + [SND_MOTU_CLOCK_INTERNAL] = "internal", + [SND_MOTU_CLOCK_OPT] = "optical interface with ADAT or S/PDIF", + [SND_MOTU_CLOCK_SPDIF_COAX] = "coaxial interface with S/PDIF", + [SND_MOTU_CLOCK_SPH] = "SMPTE in SPH", + [SND_MOTU_CLOCK_ADAT_DSUB] = "D-Sub interface with ADAT", + [SND_MOTU_CLOCK_AESEBU_XLR] = "XLR interface with AES/EBU", + [SND_MOTU_CLOCK_WORD_BNC] = "BNC interface with Word", +}; + +static void proc_read_clock(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + + struct snd_motu *motu = entry->private_data; + unsigned int rate; + enum snd_motu_clock src; + + if (snd_motu_stream_get_rate(motu, &rate) < 0) + return; + if (snd_motu_stream_get_clock(motu, &src) < 0) + return; + + snd_iprintf(buffer, "Rate:\t%d\n", rate); + snd_iprintf(buffer, "Source:\t%s\n", clock_names[src]); +} + +static void add_node(struct snd_motu *motu, 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(motu->card, name, root); + if (entry == NULL) + return; + + snd_info_set_text_ops(entry, motu, op); + if (snd_info_register(entry) < 0) + snd_info_free_entry(entry); +} + +void snd_motu_proc_init(struct snd_motu *motu) +{ + 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(motu->card, "firewire", + motu->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(motu, root, "clock", proc_read_clock); +} diff --git a/sound/firewire/motu/motu.c b/sound/firewire/motu/motu.c index 3c7a51f..5717854 100644 --- a/sound/firewire/motu/motu.c +++ b/sound/firewire/motu/motu.c @@ -76,6 +76,8 @@ static int motu_probe(struct fw_unit *unit, const struct ieee1394_device_id *id) if (err < 0) goto error;
+ snd_motu_proc_init(motu); + err = snd_card_register(card); if (err < 0) goto error; diff --git a/sound/firewire/motu/motu.h b/sound/firewire/motu/motu.h index 1597e99..8486dd8 100644 --- a/sound/firewire/motu/motu.h +++ b/sound/firewire/motu/motu.h @@ -23,6 +23,7 @@ #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/rawmidi.h> +#include <sound/info.h>
#include "../amdtp-stream.h" #include "../iso-resources.h" @@ -105,4 +106,6 @@ int snd_motu_transaction_register(struct snd_motu *motu); int snd_motu_transaction_reregister(struct snd_motu *motu); void snd_motu_transaction_unregister(struct snd_motu *motu);
+void snd_motu_proc_init(struct snd_motu *motu); + #endif