mirror of https://gitee.com/openkylin/linux.git
119 lines
3.5 KiB
C
119 lines
3.5 KiB
C
/*
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* motu-proc.c - a part of driver for MOTU FireWire series
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*
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* Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
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*
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* Licensed under the terms of the GNU General Public License, version 2.
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*/
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#include "./motu.h"
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static const char *const clock_names[] = {
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[SND_MOTU_CLOCK_SOURCE_INTERNAL] = "Internal",
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[SND_MOTU_CLOCK_SOURCE_ADAT_ON_DSUB] = "ADAT on Dsub-9pin interface",
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[SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT] = "ADAT on optical interface",
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[SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT_A] = "ADAT on optical interface A",
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[SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT_B] = "ADAT on optical interface B",
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[SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT] = "S/PDIF on optical interface",
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[SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT_A] = "S/PDIF on optical interface A",
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[SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT_B] = "S/PDIF on optical interface B",
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[SND_MOTU_CLOCK_SOURCE_SPDIF_ON_COAX] = "S/PCIF on coaxial interface",
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[SND_MOTU_CLOCK_SOURCE_AESEBU_ON_XLR] = "AESEBU on XLR interface",
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[SND_MOTU_CLOCK_SOURCE_WORD_ON_BNC] = "Word clock on BNC interface",
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};
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static void proc_read_clock(struct snd_info_entry *entry,
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struct snd_info_buffer *buffer)
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{
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struct snd_motu *motu = entry->private_data;
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const struct snd_motu_protocol *const protocol = motu->spec->protocol;
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unsigned int rate;
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enum snd_motu_clock_source source;
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if (protocol->get_clock_rate(motu, &rate) < 0)
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return;
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if (protocol->get_clock_source(motu, &source) < 0)
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return;
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snd_iprintf(buffer, "Rate:\t%d\n", rate);
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snd_iprintf(buffer, "Source:\t%s\n", clock_names[source]);
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}
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static void proc_read_format(struct snd_info_entry *entry,
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struct snd_info_buffer *buffer)
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{
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struct snd_motu *motu = entry->private_data;
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const struct snd_motu_protocol *const protocol = motu->spec->protocol;
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unsigned int mode;
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struct snd_motu_packet_format *formats;
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int i;
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if (protocol->cache_packet_formats(motu) < 0)
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return;
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snd_iprintf(buffer, "tx:\tmsg\tfixed\tdiffered\n");
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for (i = 0; i < SND_MOTU_CLOCK_RATE_COUNT; ++i) {
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mode = i >> 1;
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formats = &motu->tx_packet_formats;
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snd_iprintf(buffer,
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"%u:\t%u\t%u\t%u\n",
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snd_motu_clock_rates[i],
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formats->msg_chunks,
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formats->fixed_part_pcm_chunks[mode],
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formats->differed_part_pcm_chunks[mode]);
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}
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snd_iprintf(buffer, "rx:\tmsg\tfixed\tdiffered\n");
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for (i = 0; i < SND_MOTU_CLOCK_RATE_COUNT; ++i) {
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mode = i >> 1;
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formats = &motu->rx_packet_formats;
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snd_iprintf(buffer,
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"%u:\t%u\t%u\t%u\n",
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snd_motu_clock_rates[i],
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formats->msg_chunks,
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formats->fixed_part_pcm_chunks[mode],
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formats->differed_part_pcm_chunks[mode]);
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}
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}
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static void add_node(struct snd_motu *motu, struct snd_info_entry *root,
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const char *name,
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void (*op)(struct snd_info_entry *e,
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struct snd_info_buffer *b))
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{
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struct snd_info_entry *entry;
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entry = snd_info_create_card_entry(motu->card, name, root);
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if (entry == NULL)
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return;
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snd_info_set_text_ops(entry, motu, op);
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if (snd_info_register(entry) < 0)
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snd_info_free_entry(entry);
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}
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void snd_motu_proc_init(struct snd_motu *motu)
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{
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struct snd_info_entry *root;
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/*
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* All nodes are automatically removed at snd_card_disconnect(),
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* by following to link list.
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*/
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root = snd_info_create_card_entry(motu->card, "firewire",
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motu->card->proc_root);
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if (root == NULL)
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return;
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root->mode = S_IFDIR | 0555;
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if (snd_info_register(root) < 0) {
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snd_info_free_entry(root);
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return;
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}
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add_node(motu, root, "clock", proc_read_clock);
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add_node(motu, root, "format", proc_read_format);
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}
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