1 /* 2 * digi00x-proc.c - a part of driver for Digidesign Digi 002/003 family 3 * 4 * Copyright (c) 2014-2015 Takashi Sakamoto 5 * 6 * Licensed under the terms of the GNU General Public License, version 2. 7 */ 8 9 #include "digi00x.h" 10 11 static int get_optical_iface_mode(struct snd_dg00x *dg00x, 12 enum snd_dg00x_optical_mode *mode) 13 { 14 __be32 data; 15 int err; 16 17 err = snd_fw_transaction(dg00x->unit, TCODE_READ_QUADLET_REQUEST, 18 DG00X_ADDR_BASE + DG00X_OFFSET_OPT_IFACE_MODE, 19 &data, sizeof(data), 0); 20 if (err >= 0) 21 *mode = be32_to_cpu(data) & 0x01; 22 23 return err; 24 } 25 26 static void proc_read_clock(struct snd_info_entry *entry, 27 struct snd_info_buffer *buf) 28 { 29 static const char *const source_name[] = { 30 [SND_DG00X_CLOCK_INTERNAL] = "internal", 31 [SND_DG00X_CLOCK_SPDIF] = "s/pdif", 32 [SND_DG00X_CLOCK_ADAT] = "adat", 33 [SND_DG00X_CLOCK_WORD] = "word clock", 34 }; 35 static const char *const optical_name[] = { 36 [SND_DG00X_OPT_IFACE_MODE_ADAT] = "adat", 37 [SND_DG00X_OPT_IFACE_MODE_SPDIF] = "s/pdif", 38 }; 39 struct snd_dg00x *dg00x = entry->private_data; 40 enum snd_dg00x_optical_mode mode; 41 unsigned int rate; 42 enum snd_dg00x_clock clock; 43 bool detect; 44 45 if (get_optical_iface_mode(dg00x, &mode) < 0) 46 return; 47 if (snd_dg00x_stream_get_local_rate(dg00x, &rate) < 0) 48 return; 49 if (snd_dg00x_stream_get_clock(dg00x, &clock) < 0) 50 return; 51 52 snd_iprintf(buf, "Optical mode: %s\n", optical_name[mode]); 53 snd_iprintf(buf, "Sampling Rate: %d\n", rate); 54 snd_iprintf(buf, "Clock Source: %s\n", source_name[clock]); 55 56 if (clock == SND_DG00X_CLOCK_INTERNAL) 57 return; 58 59 if (snd_dg00x_stream_check_external_clock(dg00x, &detect) < 0) 60 return; 61 snd_iprintf(buf, "External source: %s\n", detect ? "detected" : "not"); 62 if (!detect) 63 return; 64 65 if (snd_dg00x_stream_get_external_rate(dg00x, &rate) >= 0) 66 snd_iprintf(buf, "External sampling rate: %d\n", rate); 67 } 68 69 void snd_dg00x_proc_init(struct snd_dg00x *dg00x) 70 { 71 struct snd_info_entry *root, *entry; 72 73 /* 74 * All nodes are automatically removed at snd_card_disconnect(), 75 * by following to link list. 76 */ 77 root = snd_info_create_card_entry(dg00x->card, "firewire", 78 dg00x->card->proc_root); 79 if (root == NULL) 80 return; 81 82 root->mode = S_IFDIR | 0555; 83 84 entry = snd_info_create_card_entry(dg00x->card, "clock", root); 85 if (entry) 86 snd_info_set_text_ops(entry, dg00x, proc_read_clock); 87 } 88