1 /* 2 * motu-proc.c - a part of driver for MOTU FireWire series 3 * 4 * Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp> 5 * 6 * Licensed under the terms of the GNU General Public License, version 2. 7 */ 8 9 #include "./motu.h" 10 11 static const char *const clock_names[] = { 12 [SND_MOTU_CLOCK_SOURCE_INTERNAL] = "Internal", 13 [SND_MOTU_CLOCK_SOURCE_ADAT_ON_DSUB] = "ADAT on Dsub-9pin interface", 14 [SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT] = "ADAT on optical interface", 15 [SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT_A] = "ADAT on optical interface A", 16 [SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT_B] = "ADAT on optical interface B", 17 [SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT] = "S/PDIF on optical interface", 18 [SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT_A] = "S/PDIF on optical interface A", 19 [SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT_B] = "S/PDIF on optical interface B", 20 [SND_MOTU_CLOCK_SOURCE_SPDIF_ON_COAX] = "S/PCIF on coaxial interface", 21 [SND_MOTU_CLOCK_SOURCE_AESEBU_ON_XLR] = "AESEBU on XLR interface", 22 [SND_MOTU_CLOCK_SOURCE_WORD_ON_BNC] = "Word clock on BNC interface", 23 }; 24 25 static void proc_read_clock(struct snd_info_entry *entry, 26 struct snd_info_buffer *buffer) 27 { 28 29 struct snd_motu *motu = entry->private_data; 30 const struct snd_motu_protocol *const protocol = motu->spec->protocol; 31 unsigned int rate; 32 enum snd_motu_clock_source source; 33 34 if (protocol->get_clock_rate(motu, &rate) < 0) 35 return; 36 if (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 43 static 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 const struct snd_motu_protocol *const protocol = motu->spec->protocol; 48 unsigned int mode; 49 struct snd_motu_packet_format *formats; 50 int i; 51 52 if (protocol->cache_packet_formats(motu) < 0) 53 return; 54 55 snd_iprintf(buffer, "tx:\tmsg\tfixed\tdiffered\n"); 56 for (i = 0; i < SND_MOTU_CLOCK_RATE_COUNT; ++i) { 57 mode = i >> 1; 58 59 formats = &motu->tx_packet_formats; 60 snd_iprintf(buffer, 61 "%u:\t%u\t%u\t%u\n", 62 snd_motu_clock_rates[i], 63 formats->msg_chunks, 64 formats->fixed_part_pcm_chunks[mode], 65 formats->differed_part_pcm_chunks[mode]); 66 } 67 68 snd_iprintf(buffer, "rx:\tmsg\tfixed\tdiffered\n"); 69 for (i = 0; i < SND_MOTU_CLOCK_RATE_COUNT; ++i) { 70 mode = i >> 1; 71 72 formats = &motu->rx_packet_formats; 73 snd_iprintf(buffer, 74 "%u:\t%u\t%u\t%u\n", 75 snd_motu_clock_rates[i], 76 formats->msg_chunks, 77 formats->fixed_part_pcm_chunks[mode], 78 formats->differed_part_pcm_chunks[mode]); 79 } 80 } 81 82 static void add_node(struct snd_motu *motu, struct snd_info_entry *root, 83 const char *name, 84 void (*op)(struct snd_info_entry *e, 85 struct snd_info_buffer *b)) 86 { 87 struct snd_info_entry *entry; 88 89 entry = snd_info_create_card_entry(motu->card, name, root); 90 if (entry == NULL) 91 return; 92 93 snd_info_set_text_ops(entry, motu, op); 94 if (snd_info_register(entry) < 0) 95 snd_info_free_entry(entry); 96 } 97 98 void snd_motu_proc_init(struct snd_motu *motu) 99 { 100 struct snd_info_entry *root; 101 102 /* 103 * All nodes are automatically removed at snd_card_disconnect(), 104 * by following to link list. 105 */ 106 root = snd_info_create_card_entry(motu->card, "firewire", 107 motu->card->proc_root); 108 if (root == NULL) 109 return; 110 root->mode = S_IFDIR | 0555; 111 if (snd_info_register(root) < 0) { 112 snd_info_free_entry(root); 113 return; 114 } 115 116 add_node(motu, root, "clock", proc_read_clock); 117 add_node(motu, root, "format", proc_read_format); 118 } 119