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1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
e5779998 | 2 | /* |
e5779998 DM |
3 | */ |
4 | ||
5 | #include <linux/init.h> | |
6 | #include <linux/usb.h> | |
7 | ||
8 | #include <sound/core.h> | |
9 | #include <sound/info.h> | |
10 | #include <sound/pcm.h> | |
11 | ||
12 | #include "usbaudio.h" | |
13 | #include "helper.h" | |
14 | #include "card.h" | |
c89a5d9c | 15 | #include "endpoint.h" |
e5779998 DM |
16 | #include "proc.h" |
17 | ||
18 | /* convert our full speed USB rate into sampling rate in Hz */ | |
19 | static inline unsigned get_full_speed_hz(unsigned int usb_rate) | |
20 | { | |
21 | return (usb_rate * 125 + (1 << 12)) >> 13; | |
22 | } | |
23 | ||
24 | /* convert our high speed USB rate into sampling rate in Hz */ | |
25 | static inline unsigned get_high_speed_hz(unsigned int usb_rate) | |
26 | { | |
27 | return (usb_rate * 125 + (1 << 9)) >> 10; | |
28 | } | |
29 | ||
30 | /* | |
31 | * common proc files to show the usb device info | |
32 | */ | |
33 | static void proc_audio_usbbus_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) | |
34 | { | |
35 | struct snd_usb_audio *chip = entry->private_data; | |
47ab1545 | 36 | if (!atomic_read(&chip->shutdown)) |
e5779998 DM |
37 | snd_iprintf(buffer, "%03d/%03d\n", chip->dev->bus->busnum, chip->dev->devnum); |
38 | } | |
39 | ||
40 | static void proc_audio_usbid_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) | |
41 | { | |
42 | struct snd_usb_audio *chip = entry->private_data; | |
47ab1545 | 43 | if (!atomic_read(&chip->shutdown)) |
e5779998 DM |
44 | snd_iprintf(buffer, "%04x:%04x\n", |
45 | USB_ID_VENDOR(chip->usb_id), | |
46 | USB_ID_PRODUCT(chip->usb_id)); | |
47 | } | |
48 | ||
49 | void snd_usb_audio_create_proc(struct snd_usb_audio *chip) | |
50 | { | |
7449054a TI |
51 | snd_card_ro_proc_new(chip->card, "usbbus", chip, |
52 | proc_audio_usbbus_read); | |
53 | snd_card_ro_proc_new(chip->card, "usbid", chip, | |
54 | proc_audio_usbid_read); | |
e5779998 DM |
55 | } |
56 | ||
093b8494 TI |
57 | static const char * const channel_labels[] = { |
58 | [SNDRV_CHMAP_NA] = "N/A", | |
59 | [SNDRV_CHMAP_MONO] = "MONO", | |
60 | [SNDRV_CHMAP_FL] = "FL", | |
61 | [SNDRV_CHMAP_FR] = "FR", | |
62 | [SNDRV_CHMAP_FC] = "FC", | |
63 | [SNDRV_CHMAP_LFE] = "LFE", | |
64 | [SNDRV_CHMAP_RL] = "RL", | |
65 | [SNDRV_CHMAP_RR] = "RR", | |
66 | [SNDRV_CHMAP_FLC] = "FLC", | |
67 | [SNDRV_CHMAP_FRC] = "FRC", | |
68 | [SNDRV_CHMAP_RC] = "RC", | |
69 | [SNDRV_CHMAP_SL] = "SL", | |
70 | [SNDRV_CHMAP_SR] = "SR", | |
71 | [SNDRV_CHMAP_TC] = "TC", | |
72 | [SNDRV_CHMAP_TFL] = "TFL", | |
73 | [SNDRV_CHMAP_TFC] = "TFC", | |
74 | [SNDRV_CHMAP_TFR] = "TFR", | |
75 | [SNDRV_CHMAP_TRL] = "TRL", | |
76 | [SNDRV_CHMAP_TRC] = "TRC", | |
77 | [SNDRV_CHMAP_TRR] = "TRR", | |
78 | [SNDRV_CHMAP_TFLC] = "TFLC", | |
79 | [SNDRV_CHMAP_TFRC] = "TFRC", | |
80 | [SNDRV_CHMAP_LLFE] = "LLFE", | |
81 | [SNDRV_CHMAP_RLFE] = "RLFE", | |
82 | [SNDRV_CHMAP_TSL] = "TSL", | |
83 | [SNDRV_CHMAP_TSR] = "TSR", | |
84 | [SNDRV_CHMAP_BC] = "BC", | |
85 | [SNDRV_CHMAP_RLC] = "RLC", | |
86 | [SNDRV_CHMAP_RRC] = "RRC", | |
87 | }; | |
88 | ||
e5779998 DM |
89 | /* |
90 | * proc interface for list the supported pcm formats | |
91 | */ | |
92 | static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct snd_info_buffer *buffer) | |
93 | { | |
88766f04 | 94 | struct audioformat *fp; |
a01df925 | 95 | static const char * const sync_types[4] = { |
e5779998 DM |
96 | "NONE", "ASYNC", "ADAPTIVE", "SYNC" |
97 | }; | |
98 | ||
88766f04 | 99 | list_for_each_entry(fp, &subs->fmt_list, list) { |
015eb0b0 | 100 | snd_pcm_format_t fmt; |
88766f04 | 101 | |
e5779998 DM |
102 | snd_iprintf(buffer, " Interface %d\n", fp->iface); |
103 | snd_iprintf(buffer, " Altset %d\n", fp->altsetting); | |
015eb0b0 | 104 | snd_iprintf(buffer, " Format:"); |
5b29f053 | 105 | pcm_for_each_format(fmt) |
74c34ca1 | 106 | if (fp->formats & pcm_format_to_bits(fmt)) |
015eb0b0 CL |
107 | snd_iprintf(buffer, " %s", |
108 | snd_pcm_format_name(fmt)); | |
109 | snd_iprintf(buffer, "\n"); | |
e5779998 | 110 | snd_iprintf(buffer, " Channels: %d\n", fp->channels); |
8ec08b1a TI |
111 | snd_iprintf(buffer, " Endpoint: 0x%02x (%d %s) (%s)\n", |
112 | fp->endpoint, | |
e5779998 DM |
113 | fp->endpoint & USB_ENDPOINT_NUMBER_MASK, |
114 | fp->endpoint & USB_DIR_IN ? "IN" : "OUT", | |
115 | sync_types[(fp->ep_attr & USB_ENDPOINT_SYNCTYPE) >> 2]); | |
116 | if (fp->rates & SNDRV_PCM_RATE_CONTINUOUS) { | |
117 | snd_iprintf(buffer, " Rates: %d - %d (continuous)\n", | |
118 | fp->rate_min, fp->rate_max); | |
119 | } else { | |
120 | unsigned int i; | |
121 | snd_iprintf(buffer, " Rates: "); | |
122 | for (i = 0; i < fp->nr_rates; i++) { | |
123 | if (i > 0) | |
124 | snd_iprintf(buffer, ", "); | |
125 | snd_iprintf(buffer, "%d", fp->rate_table[i]); | |
126 | } | |
127 | snd_iprintf(buffer, "\n"); | |
128 | } | |
978520b7 | 129 | if (subs->speed != USB_SPEED_FULL) |
e5779998 DM |
130 | snd_iprintf(buffer, " Data packet interval: %d us\n", |
131 | 125 * (1 << fp->datainterval)); | |
c7a13264 | 132 | snd_iprintf(buffer, " Bits: %d\n", fp->fmt_bits); |
093b8494 TI |
133 | |
134 | if (fp->dsd_raw) | |
135 | snd_iprintf(buffer, " DSD raw: DOP=%d, bitrev=%d\n", | |
136 | fp->dsd_dop, fp->dsd_bitrev); | |
137 | ||
138 | if (fp->chmap) { | |
139 | const struct snd_pcm_chmap_elem *map = fp->chmap; | |
140 | int c; | |
141 | ||
142 | snd_iprintf(buffer, " Channel map:"); | |
143 | for (c = 0; c < map->channels; c++) { | |
8137d276 | 144 | if (map->map[c] >= ARRAY_SIZE(channel_labels) || |
093b8494 TI |
145 | !channel_labels[map->map[c]]) |
146 | snd_iprintf(buffer, " --"); | |
147 | else | |
148 | snd_iprintf(buffer, " %s", | |
149 | channel_labels[map->map[c]]); | |
150 | } | |
151 | snd_iprintf(buffer, "\n"); | |
152 | } | |
153 | ||
8ec08b1a TI |
154 | if (fp->sync_ep) { |
155 | snd_iprintf(buffer, " Sync Endpoint: 0x%02x (%d %s)\n", | |
156 | fp->sync_ep, | |
157 | fp->sync_ep & USB_ENDPOINT_NUMBER_MASK, | |
158 | fp->sync_ep & USB_DIR_IN ? "IN" : "OUT"); | |
159 | snd_iprintf(buffer, " Sync EP Interface: %d\n", | |
160 | fp->sync_iface); | |
161 | snd_iprintf(buffer, " Sync EP Altset: %d\n", | |
162 | fp->sync_altsetting); | |
163 | snd_iprintf(buffer, " Implicit Feedback Mode: %s\n", | |
164 | fp->implicit_fb ? "Yes" : "No"); | |
165 | } | |
166 | ||
e5779998 DM |
167 | // snd_iprintf(buffer, " Max Packet Size = %d\n", fp->maxpacksize); |
168 | // snd_iprintf(buffer, " EP Attribute = %#x\n", fp->attributes); | |
169 | } | |
170 | } | |
171 | ||
22026c1a | 172 | static void proc_dump_ep_status(struct snd_usb_substream *subs, |
e6135fe9 TH |
173 | struct snd_usb_endpoint *data_ep, |
174 | struct snd_usb_endpoint *sync_ep, | |
22026c1a TI |
175 | struct snd_info_buffer *buffer) |
176 | { | |
e6135fe9 | 177 | if (!data_ep) |
22026c1a | 178 | return; |
e6135fe9 | 179 | snd_iprintf(buffer, " Packet Size = %d\n", data_ep->curpacksize); |
22026c1a | 180 | snd_iprintf(buffer, " Momentary freq = %u Hz (%#x.%04x)\n", |
978520b7 | 181 | subs->speed == USB_SPEED_FULL |
e6135fe9 TH |
182 | ? get_full_speed_hz(data_ep->freqm) |
183 | : get_high_speed_hz(data_ep->freqm), | |
184 | data_ep->freqm >> 16, data_ep->freqm & 0xffff); | |
185 | if (sync_ep && data_ep->freqshift != INT_MIN) { | |
186 | int res = 16 - data_ep->freqshift; | |
22026c1a | 187 | snd_iprintf(buffer, " Feedback Format = %d.%d\n", |
e6135fe9 | 188 | (sync_ep->syncmaxsize > 3 ? 32 : 24) - res, res); |
22026c1a TI |
189 | } |
190 | } | |
191 | ||
6aa719d1 TI |
192 | static void proc_dump_substream_status(struct snd_usb_audio *chip, |
193 | struct snd_usb_substream *subs, | |
194 | struct snd_info_buffer *buffer) | |
e5779998 | 195 | { |
6aa719d1 | 196 | mutex_lock(&chip->mutex); |
e5779998 | 197 | if (subs->running) { |
e5779998 | 198 | snd_iprintf(buffer, " Status: Running\n"); |
6aa719d1 TI |
199 | if (subs->cur_audiofmt) { |
200 | snd_iprintf(buffer, " Interface = %d\n", subs->cur_audiofmt->iface); | |
201 | snd_iprintf(buffer, " Altset = %d\n", subs->cur_audiofmt->altsetting); | |
202 | } | |
e6135fe9 | 203 | proc_dump_ep_status(subs, subs->data_endpoint, subs->sync_endpoint, buffer); |
e5779998 DM |
204 | } else { |
205 | snd_iprintf(buffer, " Status: Stop\n"); | |
206 | } | |
6aa719d1 | 207 | mutex_unlock(&chip->mutex); |
e5779998 DM |
208 | } |
209 | ||
210 | static void proc_pcm_format_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) | |
211 | { | |
212 | struct snd_usb_stream *stream = entry->private_data; | |
6aa719d1 | 213 | struct snd_usb_audio *chip = stream->chip; |
e5779998 | 214 | |
6aa719d1 | 215 | snd_iprintf(buffer, "%s : %s\n", chip->card->longname, stream->pcm->name); |
e5779998 DM |
216 | |
217 | if (stream->substream[SNDRV_PCM_STREAM_PLAYBACK].num_formats) { | |
218 | snd_iprintf(buffer, "\nPlayback:\n"); | |
6aa719d1 | 219 | proc_dump_substream_status(chip, &stream->substream[SNDRV_PCM_STREAM_PLAYBACK], buffer); |
e5779998 DM |
220 | proc_dump_substream_formats(&stream->substream[SNDRV_PCM_STREAM_PLAYBACK], buffer); |
221 | } | |
222 | if (stream->substream[SNDRV_PCM_STREAM_CAPTURE].num_formats) { | |
223 | snd_iprintf(buffer, "\nCapture:\n"); | |
6aa719d1 | 224 | proc_dump_substream_status(chip, &stream->substream[SNDRV_PCM_STREAM_CAPTURE], buffer); |
e5779998 DM |
225 | proc_dump_substream_formats(&stream->substream[SNDRV_PCM_STREAM_CAPTURE], buffer); |
226 | } | |
227 | } | |
228 | ||
229 | void snd_usb_proc_pcm_format_add(struct snd_usb_stream *stream) | |
230 | { | |
e5779998 DM |
231 | char name[32]; |
232 | struct snd_card *card = stream->chip->card; | |
233 | ||
234 | sprintf(name, "stream%d", stream->pcm_index); | |
7449054a | 235 | snd_card_ro_proc_new(card, name, stream, proc_pcm_format_read); |
e5779998 DM |
236 | } |
237 |