bebob_proc.c

  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 */
 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 product
 27	u64 dbg_date;
 28	u64 dbg_time;
 29	u32 dbg_id;
 30	u32 dbg_version;
 31*/
 32} __packed;
 33
 34static void
 35proc_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 void
 71proc_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 void
104proc_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 void
131proc_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
158static void
159add_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}