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/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 26 static 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 const struct snd_motu_protocol *const protocol = motu->spec->protocol; 32 unsigned int rate; 33 enum snd_motu_clock_source source; 34 35 if (protocol->get_clock_rate(motu, &rate) < 0) 36 return; 37 if (protocol->get_clock_source(motu, &source) < 0) 38 return; 39 40 snd_iprintf(buffer, "Rate:\t%d\n", rate); 41 snd_iprintf(buffer, "Source:\t%s\n", clock_names[source]); 42 } 43 44 static void proc_read_format(struct snd_info_entry *entry, 45 struct snd_info_buffer *buffer) 46 { 47 struct snd_motu *motu = entry->private_data; 48 const struct snd_motu_protocol *const protocol = motu->spec->protocol; 49 unsigned int mode; 50 struct snd_motu_packet_format *formats; 51 int i; 52 53 if (protocol->cache_packet_formats(motu) < 0) 54 return; 55 56 snd_iprintf(buffer, "tx:\tmsg\tfixed\tdiffered\n"); 57 for (i = 0; i < SND_MOTU_CLOCK_RATE_COUNT; ++i) { 58 mode = i >> 1; 59 60 formats = &motu->tx_packet_formats; 61 snd_iprintf(buffer, 62 "%u:\t%u\t%u\t%u\n", 63 snd_motu_clock_rates[i], 64 formats->msg_chunks, 65 formats->fixed_part_pcm_chunks[mode], 66 formats->differed_part_pcm_chunks[mode]); 67 } 68 69 snd_iprintf(buffer, "rx:\tmsg\tfixed\tdiffered\n"); 70 for (i = 0; i < SND_MOTU_CLOCK_RATE_COUNT; ++i) { 71 mode = i >> 1; 72 73 formats = &motu->rx_packet_formats; 74 snd_iprintf(buffer, 75 "%u:\t%u\t%u\t%u\n", 76 snd_motu_clock_rates[i], 77 formats->msg_chunks, 78 formats->fixed_part_pcm_chunks[mode], 79 formats->differed_part_pcm_chunks[mode]); 80 } 81 } 82 83 static void add_node(struct snd_motu *motu, struct snd_info_entry *root, 84 const char *name, 85 void (*op)(struct snd_info_entry *e, 86 struct snd_info_buffer *b)) 87 { 88 struct snd_info_entry *entry; 89 90 entry = snd_info_create_card_entry(motu->card, name, root); 91 if (entry) 92 snd_info_set_text_ops(entry, motu, op); 93 } 94 95 void snd_motu_proc_init(struct snd_motu *motu) 96 { 97 struct snd_info_entry *root; 98 99 /* 100 * All nodes are automatically removed at snd_card_disconnect(), 101 * by following to link list. 102 */ 103 root = snd_info_create_card_entry(motu->card, "firewire", 104 motu->card->proc_root); 105 if (root == NULL) 106 return; 107 root->mode = S_IFDIR | 0555; 108 109 add_node(motu, root, "clock", proc_read_clock); 110 add_node(motu, root, "format", proc_read_format); 111 } 112