1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * bebob_proc.c - a part of driver for BeBoB based devices
4 *
5 * Copyright (c) 2013-2014 Takashi Sakamoto
6 */
7
8 #include "./bebob.h"
9
10 /* contents of information register */
11 struct 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 product
27 u64 dbg_date;
28 u64 dbg_time;
29 u32 dbg_id;
30 u32 dbg_version;
31 */
32 } __packed;
33
34 static void
proc_read_hw_info(struct snd_info_entry * entry,struct snd_info_buffer * buffer)35 proc_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
66 end:
67 kfree(info);
68 }
69
70 static void
proc_read_meters(struct snd_info_entry * entry,struct snd_info_buffer * buffer)71 proc_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 }
99 end:
100 kfree(buf);
101 }
102
103 static void
proc_read_formation(struct snd_info_entry * entry,struct snd_info_buffer * buffer)104 proc_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
130 static void
proc_read_clock(struct snd_info_entry * entry,struct snd_info_buffer * buffer)131 proc_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 else
153 snd_iprintf(buffer, "Clock Source: %s (MSU-dest: %d)\n",
154 clk_labels[src], bebob->sync_input_plug);
155 }
156 }
157
158 static void
add_node(struct snd_bebob * bebob,struct snd_info_entry * root,const char * name,void (* op)(struct snd_info_entry * e,struct snd_info_buffer * b))159 add_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
snd_bebob_proc_init(struct snd_bebob * bebob)169 void 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