1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * motu-proc.c - a part of driver for MOTU FireWire series 4 * 5 * Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp> 6 */ 7 8 #include "./motu.h" 9 10 static 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/PCIF 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 }; 23 24 static void proc_read_clock(struct snd_info_entry *entry, 25 struct snd_info_buffer *buffer) 26 { 27 28 struct snd_motu *motu = entry->private_data; 29 const struct snd_motu_protocol *const protocol = motu->spec->protocol; 30 unsigned int rate; 31 enum snd_motu_clock_source source; 32 33 if (protocol->get_clock_rate(motu, &rate) < 0) 34 return; 35 if (protocol->get_clock_source(motu, &source) < 0) 36 return; 37 38 snd_iprintf(buffer, "Rate:\t%d\n", rate); 39 snd_iprintf(buffer, "Source:\t%s\n", clock_names[source]); 40 } 41 42 static void proc_read_format(struct snd_info_entry *entry, 43 struct snd_info_buffer *buffer) 44 { 45 struct snd_motu *motu = entry->private_data; 46 const struct snd_motu_protocol *const protocol = motu->spec->protocol; 47 unsigned int mode; 48 struct snd_motu_packet_format *formats; 49 int i; 50 51 if (protocol->cache_packet_formats(motu) < 0) 52 return; 53 54 snd_iprintf(buffer, "tx:\tmsg\tfixed\tdiffered\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 formats->fixed_part_pcm_chunks[mode], 64 formats->differed_part_pcm_chunks[mode]); 65 } 66 67 snd_iprintf(buffer, "rx:\tmsg\tfixed\tdiffered\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 formats->fixed_part_pcm_chunks[mode], 77 formats->differed_part_pcm_chunks[mode]); 78 } 79 } 80 81 static 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 93 void 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