1 /* 2 * bebob_proc.c - a part of driver for BeBoB based devices 3 * 4 * Copyright (c) 2013-2014 Takashi Sakamoto 5 * 6 * Licensed under the terms of the GNU General Public License, version 2. 7 */ 8 9 #include "./bebob.h" 10 11 /* contents of information register */ 12 struct hw_info { 13 u64 manufacturer; 14 u32 protocol_ver; 15 u32 bld_ver; 16 u32 guid[2]; 17 u32 model_id; 18 u32 model_rev; 19 u64 fw_date; 20 u64 fw_time; 21 u32 fw_id; 22 u32 fw_ver; 23 u32 base_addr; 24 u32 max_size; 25 u64 bld_date; 26 u64 bld_time; 27 /* may not used in product 28 u64 dbg_date; 29 u64 dbg_time; 30 u32 dbg_id; 31 u32 dbg_version; 32 */ 33 } __packed; 34 35 static void 36 proc_read_hw_info(struct snd_info_entry *entry, 37 struct snd_info_buffer *buffer) 38 { 39 struct snd_bebob *bebob = entry->private_data; 40 struct hw_info *info; 41 42 info = kzalloc(sizeof(struct hw_info), GFP_KERNEL); 43 if (info == NULL) 44 return; 45 46 if (snd_bebob_read_block(bebob->unit, 0, 47 info, sizeof(struct hw_info)) < 0) 48 goto end; 49 50 snd_iprintf(buffer, "Manufacturer:\t%.8s\n", 51 (char *)&info->manufacturer); 52 snd_iprintf(buffer, "Protocol Ver:\t%d\n", info->protocol_ver); 53 snd_iprintf(buffer, "Build Ver:\t%d\n", info->bld_ver); 54 snd_iprintf(buffer, "GUID:\t\t0x%.8X%.8X\n", 55 info->guid[0], info->guid[1]); 56 snd_iprintf(buffer, "Model ID:\t0x%02X\n", info->model_id); 57 snd_iprintf(buffer, "Model Rev:\t%d\n", info->model_rev); 58 snd_iprintf(buffer, "Firmware Date:\t%.8s\n", (char *)&info->fw_date); 59 snd_iprintf(buffer, "Firmware Time:\t%.8s\n", (char *)&info->fw_time); 60 snd_iprintf(buffer, "Firmware ID:\t0x%X\n", info->fw_id); 61 snd_iprintf(buffer, "Firmware Ver:\t%d\n", info->fw_ver); 62 snd_iprintf(buffer, "Base Addr:\t0x%X\n", info->base_addr); 63 snd_iprintf(buffer, "Max Size:\t%d\n", info->max_size); 64 snd_iprintf(buffer, "Loader Date:\t%.8s\n", (char *)&info->bld_date); 65 snd_iprintf(buffer, "Loader Time:\t%.8s\n", (char *)&info->bld_time); 66 67 end: 68 kfree(info); 69 } 70 71 static void 72 proc_read_meters(struct snd_info_entry *entry, 73 struct snd_info_buffer *buffer) 74 { 75 struct snd_bebob *bebob = entry->private_data; 76 const struct snd_bebob_meter_spec *spec = bebob->spec->meter; 77 u32 *buf; 78 unsigned int i, c, channels, size; 79 80 if (spec == NULL) 81 return; 82 83 channels = spec->num * 2; 84 size = channels * sizeof(u32); 85 buf = kmalloc(size, GFP_KERNEL); 86 if (buf == NULL) 87 return; 88 89 if (spec->get(bebob, buf, size) < 0) 90 goto end; 91 92 for (i = 0, c = 1; i < channels; i++) { 93 snd_iprintf(buffer, "%s %d:\t%d\n", 94 spec->labels[i / 2], c++, buf[i]); 95 if ((i + 1 < channels - 1) && 96 (strcmp(spec->labels[i / 2], 97 spec->labels[(i + 1) / 2]) != 0)) 98 c = 1; 99 } 100 end: 101 kfree(buf); 102 } 103 104 static void 105 proc_read_formation(struct snd_info_entry *entry, 106 struct snd_info_buffer *buffer) 107 { 108 struct snd_bebob *bebob = entry->private_data; 109 struct snd_bebob_stream_formation *formation; 110 unsigned int i; 111 112 snd_iprintf(buffer, "Output Stream from device:\n"); 113 snd_iprintf(buffer, "\tRate\tPCM\tMIDI\n"); 114 formation = bebob->tx_stream_formations; 115 for (i = 0; i < SND_BEBOB_STRM_FMT_ENTRIES; i++) { 116 snd_iprintf(buffer, 117 "\t%d\t%d\t%d\n", snd_bebob_rate_table[i], 118 formation[i].pcm, formation[i].midi); 119 } 120 121 snd_iprintf(buffer, "Input Stream to device:\n"); 122 snd_iprintf(buffer, "\tRate\tPCM\tMIDI\n"); 123 formation = bebob->rx_stream_formations; 124 for (i = 0; i < SND_BEBOB_STRM_FMT_ENTRIES; i++) { 125 snd_iprintf(buffer, 126 "\t%d\t%d\t%d\n", snd_bebob_rate_table[i], 127 formation[i].pcm, formation[i].midi); 128 } 129 } 130 131 static void 132 proc_read_clock(struct snd_info_entry *entry, 133 struct snd_info_buffer *buffer) 134 { 135 static const char *const clk_labels[] = { 136 "Internal", 137 "External", 138 "SYT-Match", 139 }; 140 struct snd_bebob *bebob = entry->private_data; 141 const struct snd_bebob_rate_spec *rate_spec = bebob->spec->rate; 142 const struct snd_bebob_clock_spec *clk_spec = bebob->spec->clock; 143 enum snd_bebob_clock_type src; 144 unsigned int rate; 145 146 if (rate_spec->get(bebob, &rate) >= 0) 147 snd_iprintf(buffer, "Sampling rate: %d\n", rate); 148 149 if (snd_bebob_stream_get_clock_src(bebob, &src) >= 0) { 150 if (clk_spec) 151 snd_iprintf(buffer, "Clock Source: %s\n", 152 clk_labels[src]); 153 else 154 snd_iprintf(buffer, "Clock Source: %s (MSU-dest: %d)\n", 155 clk_labels[src], bebob->sync_input_plug); 156 } 157 } 158 159 static void 160 add_node(struct snd_bebob *bebob, struct snd_info_entry *root, const char *name, 161 void (*op)(struct snd_info_entry *e, struct snd_info_buffer *b)) 162 { 163 struct snd_info_entry *entry; 164 165 entry = snd_info_create_card_entry(bebob->card, name, root); 166 if (entry == NULL) 167 return; 168 169 snd_info_set_text_ops(entry, bebob, op); 170 if (snd_info_register(entry) < 0) 171 snd_info_free_entry(entry); 172 } 173 174 void snd_bebob_proc_init(struct snd_bebob *bebob) 175 { 176 struct snd_info_entry *root; 177 178 /* 179 * All nodes are automatically removed at snd_card_disconnect(), 180 * by following to link list. 181 */ 182 root = snd_info_create_card_entry(bebob->card, "firewire", 183 bebob->card->proc_root); 184 if (root == NULL) 185 return; 186 root->mode = S_IFDIR | 0555; 187 if (snd_info_register(root) < 0) { 188 snd_info_free_entry(root); 189 return; 190 } 191 192 add_node(bebob, root, "clock", proc_read_clock); 193 add_node(bebob, root, "firmware", proc_read_hw_info); 194 add_node(bebob, root, "formation", proc_read_formation); 195 196 if (bebob->spec->meter != NULL) 197 add_node(bebob, root, "meter", proc_read_meters); 198 } 199