This commit adds proc node to check current clock status for debugging.
Signed-off-by: Takashi Sakamoto o-takashi@sakamocchi.jp --- sound/firewire/digi00x/Makefile | 2 +- sound/firewire/digi00x/digi00x-proc.c | 71 +++++++++++++++++++++++++++++++++++ sound/firewire/digi00x/digi00x.c | 2 + sound/firewire/digi00x/digi00x.h | 2 + 4 files changed, 76 insertions(+), 1 deletion(-) create mode 100644 sound/firewire/digi00x/digi00x-proc.c
diff --git a/sound/firewire/digi00x/Makefile b/sound/firewire/digi00x/Makefile index fe8fceb..aaec823 100644 --- a/sound/firewire/digi00x/Makefile +++ b/sound/firewire/digi00x/Makefile @@ -1,2 +1,2 @@ -snd-digi00x-objs := digi00x.o digi00x-stream.o +snd-digi00x-objs := digi00x.o digi00x-stream.o digi00x-proc.o obj-m += snd-digi00x.o diff --git a/sound/firewire/digi00x/digi00x-proc.c b/sound/firewire/digi00x/digi00x-proc.c new file mode 100644 index 0000000..29b7efe --- /dev/null +++ b/sound/firewire/digi00x/digi00x-proc.c @@ -0,0 +1,71 @@ +/* + * digi00x-proc.c - a part of driver for Digidesign Digi 002/003 family + * + * Copyright (c) 2014-2015 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "./digi00x.h" + +static void proc_read_clock(struct snd_info_entry *entry, + struct snd_info_buffer *buf) +{ + static const char *const source_name[] = { + [SND_DG00X_CLOCK_INTERNAL] = "internal", + [SND_DG00X_CLOCK_SPDIF] = "s/pdif", + [SND_DG00X_CLOCK_ADAT] = "adat", + [SND_DG00X_CLOCK_WORD] = "word clock", + }; + static const char *const optical_name[] = { + [SND_DG00X_OPTICAL_MODE_ADAT] = "adat", + [SND_DG00X_OPTICAL_MODE_SPDIF] = "s/pdif", + }; + struct snd_dg00x *dg00x = entry->private_data; + unsigned int rate; + enum snd_dg00x_clock clock; + enum snd_dg00x_optical_mode mode; + + if (snd_dg00x_stream_get_rate(dg00x, &rate) < 0) + return; + if (snd_dg00x_stream_get_clock(dg00x, &clock) < 0) + return; + if (snd_dg00x_stream_get_optical_mode(dg00x, &mode) < 0) + return; + + snd_iprintf(buf, "Sampling Rate: %d\n", rate); + snd_iprintf(buf, "Clock Source: %s\n", source_name[clock]); + snd_iprintf(buf, "Optical mode: %s\n", optical_name[mode]); +} + +void snd_dg00x_proc_init(struct snd_dg00x *dg00x) +{ + struct snd_info_entry *root, *entry; + + /* + * All nodes are automatically removed at snd_card_disconnect(), + * by following to link list. + */ + root = snd_info_create_card_entry(dg00x->card, "firewire", + dg00x->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; + } + + entry = snd_info_create_card_entry(dg00x->card, "clock", root); + if (entry == NULL) { + snd_info_free_entry(root); + return; + } + + snd_info_set_text_ops(entry, dg00x, proc_read_clock); + if (snd_info_register(entry) < 0) { + snd_info_free_entry(entry); + snd_info_free_entry(root); + } +} diff --git a/sound/firewire/digi00x/digi00x.c b/sound/firewire/digi00x/digi00x.c index b82bce7..d9c9e14 100644 --- a/sound/firewire/digi00x/digi00x.c +++ b/sound/firewire/digi00x/digi00x.c @@ -84,6 +84,8 @@ static int snd_dg00x_probe(struct fw_unit *unit, if (err < 0) goto error;
+ snd_dg00x_proc_init(dg00x); + err = snd_card_register(card); if (err < 0) goto error; diff --git a/sound/firewire/digi00x/digi00x.h b/sound/firewire/digi00x/digi00x.h index 61cfd6e..dde039f 100644 --- a/sound/firewire/digi00x/digi00x.h +++ b/sound/firewire/digi00x/digi00x.h @@ -20,6 +20,7 @@
#include <sound/core.h> #include <sound/initval.h> +#include <sound/info.h>
#include "../lib.h" #include "../packets-buffer.h" @@ -82,4 +83,5 @@ void snd_dg00x_stream_stop_duplex(struct snd_dg00x *dg00x); void snd_dg00x_stream_update_duplex(struct snd_dg00x *dg00x); void snd_dg00x_stream_destroy_duplex(struct snd_dg00x *dg00x);
+void snd_dg00x_proc_init(struct snd_dg00x *dg00x); #endif