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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * oxfw_proc.c - a part of driver for OXFW970/971 based devices4 *5 * Copyright (c) 2014 Takashi Sakamoto6 */7 8#include "./oxfw.h"9 10static void proc_read_formation(struct snd_info_entry *entry,11 struct snd_info_buffer *buffer)12{13 struct snd_oxfw *oxfw = entry->private_data;14 struct snd_oxfw_stream_formation formation, curr;15 u8 *format;16 char flag;17 int i, err;18 19 /* Show input. */20 err = snd_oxfw_stream_get_current_formation(oxfw,21 AVC_GENERAL_PLUG_DIR_IN,22 &curr);23 if (err < 0)24 return;25 26 snd_iprintf(buffer, "Input Stream to device:\n");27 snd_iprintf(buffer, "\tRate\tPCM\tMIDI\n");28 for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) {29 format = oxfw->rx_stream_formats[i];30 if (format == NULL)31 continue;32 33 err = snd_oxfw_stream_parse_format(format, &formation);34 if (err < 0)35 continue;36 37 if (memcmp(&formation, &curr, sizeof(curr)) == 0)38 flag = '*';39 else40 flag = ' ';41 42 snd_iprintf(buffer, "%c\t%d\t%d\t%d\n", flag,43 formation.rate, formation.pcm, formation.midi);44 }45 46 if (!oxfw->has_output)47 return;48 49 /* Show output. */50 err = snd_oxfw_stream_get_current_formation(oxfw,51 AVC_GENERAL_PLUG_DIR_OUT,52 &curr);53 if (err < 0)54 return;55 56 snd_iprintf(buffer, "Output Stream from device:\n");57 snd_iprintf(buffer, "\tRate\tPCM\tMIDI\n");58 for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) {59 format = oxfw->tx_stream_formats[i];60 if (format == NULL)61 continue;62 63 err = snd_oxfw_stream_parse_format(format, &formation);64 if (err < 0)65 continue;66 67 if (memcmp(&formation, &curr, sizeof(curr)) == 0)68 flag = '*';69 else70 flag = ' ';71 72 snd_iprintf(buffer, "%c\t%d\t%d\t%d\n", flag,73 formation.rate, formation.pcm, formation.midi);74 }75}76 77static void add_node(struct snd_oxfw *oxfw, struct snd_info_entry *root,78 const char *name,79 void (*op)(struct snd_info_entry *e,80 struct snd_info_buffer *b))81{82 struct snd_info_entry *entry;83 84 entry = snd_info_create_card_entry(oxfw->card, name, root);85 if (entry)86 snd_info_set_text_ops(entry, oxfw, op);87}88 89void snd_oxfw_proc_init(struct snd_oxfw *oxfw)90{91 struct snd_info_entry *root;92 93 /*94 * All nodes are automatically removed at snd_card_disconnect(),95 * by following to link list.96 */97 root = snd_info_create_card_entry(oxfw->card, "firewire",98 oxfw->card->proc_root);99 if (root == NULL)100 return;101 root->mode = S_IFDIR | 0555;102 103 add_node(oxfw, root, "formation", proc_read_formation);104}105