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 */
12struct 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
35static void
36proc_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
67end:
68	kfree(info);
69}
70
71static void
72proc_read_meters(struct snd_info_entry *entry,
73		 struct snd_info_buffer *buffer)
74{
75	struct snd_bebob *bebob = entry->private_data;
76	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	}
100end:
101	kfree(buf);
102}
103
104static void
105proc_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
131static void
132proc_read_clock(struct snd_info_entry *entry,
133		struct snd_info_buffer *buffer)
134{
135	struct snd_bebob *bebob = entry->private_data;
136	struct snd_bebob_rate_spec *rate_spec = bebob->spec->rate;
137	struct snd_bebob_clock_spec *clk_spec = bebob->spec->clock;
138	unsigned int rate, id;
139	bool internal;
140
141	if (rate_spec->get(bebob, &rate) >= 0)
142		snd_iprintf(buffer, "Sampling rate: %d\n", rate);
143
144	if (clk_spec) {
145		if (clk_spec->get(bebob, &id) >= 0)
146			snd_iprintf(buffer, "Clock Source: %s\n",
147				    clk_spec->labels[id]);
148	} else {
149		if (snd_bebob_stream_check_internal_clock(bebob,
150							  &internal) >= 0)
151			snd_iprintf(buffer, "Clock Source: %s (MSU-dest: %d)\n",
152				    (internal) ? "Internal" : "External",
153				    bebob->sync_input_plug);
154	}
155}
156
157static void
158add_node(struct snd_bebob *bebob, struct snd_info_entry *root, const char *name,
159	 void (*op)(struct snd_info_entry *e, struct snd_info_buffer *b))
160{
161	struct snd_info_entry *entry;
162
163	entry = snd_info_create_card_entry(bebob->card, name, root);
164	if (entry == NULL)
165		return;
166
167	snd_info_set_text_ops(entry, bebob, op);
168	if (snd_info_register(entry) < 0)
169		snd_info_free_entry(entry);
170}
171
172void snd_bebob_proc_init(struct snd_bebob *bebob)
173{
174	struct snd_info_entry *root;
175
176	/*
177	 * All nodes are automatically removed at snd_card_disconnect(),
178	 * by following to link list.
179	 */
180	root = snd_info_create_card_entry(bebob->card, "firewire",
181					  bebob->card->proc_root);
182	if (root == NULL)
183		return;
184	root->mode = S_IFDIR | S_IRUGO | S_IXUGO;
185	if (snd_info_register(root) < 0) {
186		snd_info_free_entry(root);
187		return;
188	}
189
190	add_node(bebob, root, "clock", proc_read_clock);
191	add_node(bebob, root, "firmware", proc_read_hw_info);
192	add_node(bebob, root, "formation", proc_read_formation);
193
194	if (bebob->spec->meter != NULL)
195		add_node(bebob, root, "meter", proc_read_meters);
196}
197