1 /* 2 * oxfw_proc.c - a part of driver for OXFW970/971 based devices 3 * 4 * Copyright (c) 2014 Takashi Sakamoto 5 * 6 * Licensed under the terms of the GNU General Public License, version 2. 7 */ 8 9 #include "./oxfw.h" 10 11 static void proc_read_formation(struct snd_info_entry *entry, 12 struct snd_info_buffer *buffer) 13 { 14 struct snd_oxfw *oxfw = entry->private_data; 15 struct snd_oxfw_stream_formation formation, curr; 16 u8 *format; 17 char flag; 18 int i, err; 19 20 /* Show input. */ 21 err = snd_oxfw_stream_get_current_formation(oxfw, 22 AVC_GENERAL_PLUG_DIR_IN, 23 &curr); 24 if (err < 0) 25 return; 26 27 snd_iprintf(buffer, "Input Stream to device:\n"); 28 snd_iprintf(buffer, "\tRate\tPCM\tMIDI\n"); 29 for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { 30 format = oxfw->rx_stream_formats[i]; 31 if (format == NULL) 32 continue; 33 34 err = snd_oxfw_stream_parse_format(format, &formation); 35 if (err < 0) 36 continue; 37 38 if (memcmp(&formation, &curr, sizeof(curr)) == 0) 39 flag = '*'; 40 else 41 flag = ' '; 42 43 snd_iprintf(buffer, "%c\t%d\t%d\t%d\n", flag, 44 formation.rate, formation.pcm, formation.midi); 45 } 46 47 if (!oxfw->has_output) 48 return; 49 50 /* Show output. */ 51 err = snd_oxfw_stream_get_current_formation(oxfw, 52 AVC_GENERAL_PLUG_DIR_OUT, 53 &curr); 54 if (err < 0) 55 return; 56 57 snd_iprintf(buffer, "Output Stream from device:\n"); 58 snd_iprintf(buffer, "\tRate\tPCM\tMIDI\n"); 59 for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { 60 format = oxfw->tx_stream_formats[i]; 61 if (format == NULL) 62 continue; 63 64 err = snd_oxfw_stream_parse_format(format, &formation); 65 if (err < 0) 66 continue; 67 68 if (memcmp(&formation, &curr, sizeof(curr)) == 0) 69 flag = '*'; 70 else 71 flag = ' '; 72 73 snd_iprintf(buffer, "%c\t%d\t%d\t%d\n", flag, 74 formation.rate, formation.pcm, formation.midi); 75 } 76 } 77 78 static void add_node(struct snd_oxfw *oxfw, struct snd_info_entry *root, 79 const char *name, 80 void (*op)(struct snd_info_entry *e, 81 struct snd_info_buffer *b)) 82 { 83 struct snd_info_entry *entry; 84 85 entry = snd_info_create_card_entry(oxfw->card, name, root); 86 if (entry == NULL) 87 return; 88 89 snd_info_set_text_ops(entry, oxfw, op); 90 if (snd_info_register(entry) < 0) 91 snd_info_free_entry(entry); 92 } 93 94 void snd_oxfw_proc_init(struct snd_oxfw *oxfw) 95 { 96 struct snd_info_entry *root; 97 98 /* 99 * All nodes are automatically removed at snd_card_disconnect(), 100 * by following to link list. 101 */ 102 root = snd_info_create_card_entry(oxfw->card, "firewire", 103 oxfw->card->proc_root); 104 if (root == NULL) 105 return; 106 root->mode = S_IFDIR | S_IRUGO | S_IXUGO; 107 if (snd_info_register(root) < 0) { 108 snd_info_free_entry(root); 109 return; 110 } 111 112 add_node(oxfw, root, "formation", proc_read_formation); 113 } 114