190 lines · c
1// SPDX-License-Identifier: GPL-2.0-only2/*3 * bebob_proc.c - a part of driver for BeBoB based devices4 *5 * Copyright (c) 2013-2014 Takashi Sakamoto6 */7 8#include "./bebob.h"9 10/* contents of information register */11struct hw_info {12 u64 manufacturer;13 u32 protocol_ver;14 u32 bld_ver;15 u32 guid[2];16 u32 model_id;17 u32 model_rev;18 u64 fw_date;19 u64 fw_time;20 u32 fw_id;21 u32 fw_ver;22 u32 base_addr;23 u32 max_size;24 u64 bld_date;25 u64 bld_time;26/* may not used in product27 u64 dbg_date;28 u64 dbg_time;29 u32 dbg_id;30 u32 dbg_version;31*/32} __packed;33 34static void35proc_read_hw_info(struct snd_info_entry *entry,36 struct snd_info_buffer *buffer)37{38 struct snd_bebob *bebob = entry->private_data;39 struct hw_info *info;40 41 info = kzalloc(sizeof(struct hw_info), GFP_KERNEL);42 if (info == NULL)43 return;44 45 if (snd_bebob_read_block(bebob->unit, 0,46 info, sizeof(struct hw_info)) < 0)47 goto end;48 49 snd_iprintf(buffer, "Manufacturer:\t%.8s\n",50 (char *)&info->manufacturer);51 snd_iprintf(buffer, "Protocol Ver:\t%d\n", info->protocol_ver);52 snd_iprintf(buffer, "Build Ver:\t%d\n", info->bld_ver);53 snd_iprintf(buffer, "GUID:\t\t0x%.8X%.8X\n",54 info->guid[0], info->guid[1]);55 snd_iprintf(buffer, "Model ID:\t0x%02X\n", info->model_id);56 snd_iprintf(buffer, "Model Rev:\t%d\n", info->model_rev);57 snd_iprintf(buffer, "Firmware Date:\t%.8s\n", (char *)&info->fw_date);58 snd_iprintf(buffer, "Firmware Time:\t%.8s\n", (char *)&info->fw_time);59 snd_iprintf(buffer, "Firmware ID:\t0x%X\n", info->fw_id);60 snd_iprintf(buffer, "Firmware Ver:\t%d\n", info->fw_ver);61 snd_iprintf(buffer, "Base Addr:\t0x%X\n", info->base_addr);62 snd_iprintf(buffer, "Max Size:\t%d\n", info->max_size);63 snd_iprintf(buffer, "Loader Date:\t%.8s\n", (char *)&info->bld_date);64 snd_iprintf(buffer, "Loader Time:\t%.8s\n", (char *)&info->bld_time);65 66end:67 kfree(info);68}69 70static void71proc_read_meters(struct snd_info_entry *entry,72 struct snd_info_buffer *buffer)73{74 struct snd_bebob *bebob = entry->private_data;75 const struct snd_bebob_meter_spec *spec = bebob->spec->meter;76 u32 *buf;77 unsigned int i, c, channels, size;78 79 if (spec == NULL)80 return;81 82 channels = spec->num * 2;83 size = channels * sizeof(u32);84 buf = kmalloc(size, GFP_KERNEL);85 if (buf == NULL)86 return;87 88 if (spec->get(bebob, buf, size) < 0)89 goto end;90 91 for (i = 0, c = 1; i < channels; i++) {92 snd_iprintf(buffer, "%s %d:\t%d\n",93 spec->labels[i / 2], c++, buf[i]);94 if ((i + 1 < channels - 1) &&95 (strcmp(spec->labels[i / 2],96 spec->labels[(i + 1) / 2]) != 0))97 c = 1;98 }99end:100 kfree(buf);101}102 103static void104proc_read_formation(struct snd_info_entry *entry,105 struct snd_info_buffer *buffer)106{107 struct snd_bebob *bebob = entry->private_data;108 struct snd_bebob_stream_formation *formation;109 unsigned int i;110 111 snd_iprintf(buffer, "Output Stream from device:\n");112 snd_iprintf(buffer, "\tRate\tPCM\tMIDI\n");113 formation = bebob->tx_stream_formations;114 for (i = 0; i < SND_BEBOB_STRM_FMT_ENTRIES; i++) {115 snd_iprintf(buffer,116 "\t%d\t%d\t%d\n", snd_bebob_rate_table[i],117 formation[i].pcm, formation[i].midi);118 }119 120 snd_iprintf(buffer, "Input Stream to device:\n");121 snd_iprintf(buffer, "\tRate\tPCM\tMIDI\n");122 formation = bebob->rx_stream_formations;123 for (i = 0; i < SND_BEBOB_STRM_FMT_ENTRIES; i++) {124 snd_iprintf(buffer,125 "\t%d\t%d\t%d\n", snd_bebob_rate_table[i],126 formation[i].pcm, formation[i].midi);127 }128}129 130static void131proc_read_clock(struct snd_info_entry *entry,132 struct snd_info_buffer *buffer)133{134 static const char *const clk_labels[] = {135 "Internal",136 "External",137 "SYT-Match",138 };139 struct snd_bebob *bebob = entry->private_data;140 const struct snd_bebob_rate_spec *rate_spec = bebob->spec->rate;141 const struct snd_bebob_clock_spec *clk_spec = bebob->spec->clock;142 enum snd_bebob_clock_type src;143 unsigned int rate;144 145 if (rate_spec->get(bebob, &rate) >= 0)146 snd_iprintf(buffer, "Sampling rate: %d\n", rate);147 148 if (snd_bebob_stream_get_clock_src(bebob, &src) >= 0) {149 if (clk_spec)150 snd_iprintf(buffer, "Clock Source: %s\n",151 clk_labels[src]);152 else153 snd_iprintf(buffer, "Clock Source: %s (MSU-dest: %d)\n",154 clk_labels[src], bebob->sync_input_plug);155 }156}157 158static void159add_node(struct snd_bebob *bebob, struct snd_info_entry *root, const char *name,160 void (*op)(struct snd_info_entry *e, struct snd_info_buffer *b))161{162 struct snd_info_entry *entry;163 164 entry = snd_info_create_card_entry(bebob->card, name, root);165 if (entry)166 snd_info_set_text_ops(entry, bebob, op);167}168 169void snd_bebob_proc_init(struct snd_bebob *bebob)170{171 struct snd_info_entry *root;172 173 /*174 * All nodes are automatically removed at snd_card_disconnect(),175 * by following to link list.176 */177 root = snd_info_create_card_entry(bebob->card, "firewire",178 bebob->card->proc_root);179 if (root == NULL)180 return;181 root->mode = S_IFDIR | 0555;182 183 add_node(bebob, root, "clock", proc_read_clock);184 add_node(bebob, root, "firmware", proc_read_hw_info);185 add_node(bebob, root, "formation", proc_read_formation);186 187 if (bebob->spec->meter != NULL)188 add_node(bebob, root, "meter", proc_read_meters);189}190