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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * motu-proc.c - a part of driver for MOTU FireWire series4 *5 * Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>6 */7 8#include "./motu.h"9 10static const char *const clock_names[] = {11 [SND_MOTU_CLOCK_SOURCE_INTERNAL] = "Internal",12 [SND_MOTU_CLOCK_SOURCE_ADAT_ON_DSUB] = "ADAT on Dsub-9pin interface",13 [SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT] = "ADAT on optical interface",14 [SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT_A] = "ADAT on optical interface A",15 [SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT_B] = "ADAT on optical interface B",16 [SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT] = "S/PDIF on optical interface",17 [SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT_A] = "S/PDIF on optical interface A",18 [SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT_B] = "S/PDIF on optical interface B",19 [SND_MOTU_CLOCK_SOURCE_SPDIF_ON_COAX] = "S/PDIF on coaxial interface",20 [SND_MOTU_CLOCK_SOURCE_AESEBU_ON_XLR] = "AESEBU on XLR interface",21 [SND_MOTU_CLOCK_SOURCE_WORD_ON_BNC] = "Word clock on BNC interface",22 [SND_MOTU_CLOCK_SOURCE_SPH] = "Source packet header",23 [SND_MOTU_CLOCK_SOURCE_UNKNOWN] = "Unknown",24};25 26static void proc_read_clock(struct snd_info_entry *entry,27 struct snd_info_buffer *buffer)28{29 30 struct snd_motu *motu = entry->private_data;31 unsigned int rate;32 enum snd_motu_clock_source source;33 34 if (snd_motu_protocol_get_clock_rate(motu, &rate) < 0)35 return;36 if (snd_motu_protocol_get_clock_source(motu, &source) < 0)37 return;38 39 snd_iprintf(buffer, "Rate:\t%d\n", rate);40 snd_iprintf(buffer, "Source:\t%s\n", clock_names[source]);41}42 43static void proc_read_format(struct snd_info_entry *entry,44 struct snd_info_buffer *buffer)45{46 struct snd_motu *motu = entry->private_data;47 unsigned int mode;48 struct snd_motu_packet_format *formats;49 int i;50 51 if (snd_motu_protocol_cache_packet_formats(motu) < 0)52 return;53 54 snd_iprintf(buffer, "tx:\tmsg\tfixed\ttotal\n");55 for (i = 0; i < SND_MOTU_CLOCK_RATE_COUNT; ++i) {56 mode = i >> 1;57 58 formats = &motu->tx_packet_formats;59 snd_iprintf(buffer,60 "%u:\t%u\t%u\t%u\n",61 snd_motu_clock_rates[i],62 formats->msg_chunks,63 motu->spec->tx_fixed_pcm_chunks[mode],64 formats->pcm_chunks[mode]);65 }66 67 snd_iprintf(buffer, "rx:\tmsg\tfixed\ttotal\n");68 for (i = 0; i < SND_MOTU_CLOCK_RATE_COUNT; ++i) {69 mode = i >> 1;70 71 formats = &motu->rx_packet_formats;72 snd_iprintf(buffer,73 "%u:\t%u\t%u\t%u\n",74 snd_motu_clock_rates[i],75 formats->msg_chunks,76 motu->spec->rx_fixed_pcm_chunks[mode],77 formats->pcm_chunks[mode]);78 }79}80 81static void add_node(struct snd_motu *motu, struct snd_info_entry *root,82 const char *name,83 void (*op)(struct snd_info_entry *e,84 struct snd_info_buffer *b))85{86 struct snd_info_entry *entry;87 88 entry = snd_info_create_card_entry(motu->card, name, root);89 if (entry)90 snd_info_set_text_ops(entry, motu, op);91}92 93void snd_motu_proc_init(struct snd_motu *motu)94{95 struct snd_info_entry *root;96 97 /*98 * All nodes are automatically removed at snd_card_disconnect(),99 * by following to link list.100 */101 root = snd_info_create_card_entry(motu->card, "firewire",102 motu->card->proc_root);103 if (root == NULL)104 return;105 root->mode = S_IFDIR | 0555;106 107 add_node(motu, root, "clock", proc_read_clock);108 add_node(motu, root, "format", proc_read_format);109}110