Commit | Line | Data |
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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 | ||
57 | /* | |
58 | * proc interface for list the supported pcm formats | |
59 | */ | |
60 | static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct snd_info_buffer *buffer) | |
61 | { | |
88766f04 | 62 | struct audioformat *fp; |
a01df925 | 63 | static const char * const sync_types[4] = { |
e5779998 DM |
64 | "NONE", "ASYNC", "ADAPTIVE", "SYNC" |
65 | }; | |
66 | ||
88766f04 | 67 | list_for_each_entry(fp, &subs->fmt_list, list) { |
015eb0b0 | 68 | snd_pcm_format_t fmt; |
88766f04 | 69 | |
e5779998 DM |
70 | snd_iprintf(buffer, " Interface %d\n", fp->iface); |
71 | snd_iprintf(buffer, " Altset %d\n", fp->altsetting); | |
015eb0b0 CL |
72 | snd_iprintf(buffer, " Format:"); |
73 | for (fmt = 0; fmt <= SNDRV_PCM_FORMAT_LAST; ++fmt) | |
74c34ca1 | 74 | if (fp->formats & pcm_format_to_bits(fmt)) |
015eb0b0 CL |
75 | snd_iprintf(buffer, " %s", |
76 | snd_pcm_format_name(fmt)); | |
77 | snd_iprintf(buffer, "\n"); | |
e5779998 DM |
78 | snd_iprintf(buffer, " Channels: %d\n", fp->channels); |
79 | snd_iprintf(buffer, " Endpoint: %d %s (%s)\n", | |
80 | fp->endpoint & USB_ENDPOINT_NUMBER_MASK, | |
81 | fp->endpoint & USB_DIR_IN ? "IN" : "OUT", | |
82 | sync_types[(fp->ep_attr & USB_ENDPOINT_SYNCTYPE) >> 2]); | |
83 | if (fp->rates & SNDRV_PCM_RATE_CONTINUOUS) { | |
84 | snd_iprintf(buffer, " Rates: %d - %d (continuous)\n", | |
85 | fp->rate_min, fp->rate_max); | |
86 | } else { | |
87 | unsigned int i; | |
88 | snd_iprintf(buffer, " Rates: "); | |
89 | for (i = 0; i < fp->nr_rates; i++) { | |
90 | if (i > 0) | |
91 | snd_iprintf(buffer, ", "); | |
92 | snd_iprintf(buffer, "%d", fp->rate_table[i]); | |
93 | } | |
94 | snd_iprintf(buffer, "\n"); | |
95 | } | |
978520b7 | 96 | if (subs->speed != USB_SPEED_FULL) |
e5779998 DM |
97 | snd_iprintf(buffer, " Data packet interval: %d us\n", |
98 | 125 * (1 << fp->datainterval)); | |
c7a13264 | 99 | snd_iprintf(buffer, " Bits: %d\n", fp->fmt_bits); |
e5779998 DM |
100 | // snd_iprintf(buffer, " Max Packet Size = %d\n", fp->maxpacksize); |
101 | // snd_iprintf(buffer, " EP Attribute = %#x\n", fp->attributes); | |
102 | } | |
103 | } | |
104 | ||
22026c1a | 105 | static void proc_dump_ep_status(struct snd_usb_substream *subs, |
e6135fe9 TH |
106 | struct snd_usb_endpoint *data_ep, |
107 | struct snd_usb_endpoint *sync_ep, | |
22026c1a TI |
108 | struct snd_info_buffer *buffer) |
109 | { | |
e6135fe9 | 110 | if (!data_ep) |
22026c1a | 111 | return; |
e6135fe9 | 112 | snd_iprintf(buffer, " Packet Size = %d\n", data_ep->curpacksize); |
22026c1a | 113 | snd_iprintf(buffer, " Momentary freq = %u Hz (%#x.%04x)\n", |
978520b7 | 114 | subs->speed == USB_SPEED_FULL |
e6135fe9 TH |
115 | ? get_full_speed_hz(data_ep->freqm) |
116 | : get_high_speed_hz(data_ep->freqm), | |
117 | data_ep->freqm >> 16, data_ep->freqm & 0xffff); | |
118 | if (sync_ep && data_ep->freqshift != INT_MIN) { | |
119 | int res = 16 - data_ep->freqshift; | |
22026c1a | 120 | snd_iprintf(buffer, " Feedback Format = %d.%d\n", |
e6135fe9 | 121 | (sync_ep->syncmaxsize > 3 ? 32 : 24) - res, res); |
22026c1a TI |
122 | } |
123 | } | |
124 | ||
e5779998 DM |
125 | static void proc_dump_substream_status(struct snd_usb_substream *subs, struct snd_info_buffer *buffer) |
126 | { | |
127 | if (subs->running) { | |
e5779998 DM |
128 | snd_iprintf(buffer, " Status: Running\n"); |
129 | snd_iprintf(buffer, " Interface = %d\n", subs->interface); | |
e11b4e0e | 130 | snd_iprintf(buffer, " Altset = %d\n", subs->altset_idx); |
e6135fe9 | 131 | proc_dump_ep_status(subs, subs->data_endpoint, subs->sync_endpoint, buffer); |
e5779998 DM |
132 | } else { |
133 | snd_iprintf(buffer, " Status: Stop\n"); | |
134 | } | |
135 | } | |
136 | ||
137 | static void proc_pcm_format_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) | |
138 | { | |
139 | struct snd_usb_stream *stream = entry->private_data; | |
140 | ||
141 | snd_iprintf(buffer, "%s : %s\n", stream->chip->card->longname, stream->pcm->name); | |
142 | ||
143 | if (stream->substream[SNDRV_PCM_STREAM_PLAYBACK].num_formats) { | |
144 | snd_iprintf(buffer, "\nPlayback:\n"); | |
145 | proc_dump_substream_status(&stream->substream[SNDRV_PCM_STREAM_PLAYBACK], buffer); | |
146 | proc_dump_substream_formats(&stream->substream[SNDRV_PCM_STREAM_PLAYBACK], buffer); | |
147 | } | |
148 | if (stream->substream[SNDRV_PCM_STREAM_CAPTURE].num_formats) { | |
149 | snd_iprintf(buffer, "\nCapture:\n"); | |
150 | proc_dump_substream_status(&stream->substream[SNDRV_PCM_STREAM_CAPTURE], buffer); | |
151 | proc_dump_substream_formats(&stream->substream[SNDRV_PCM_STREAM_CAPTURE], buffer); | |
152 | } | |
153 | } | |
154 | ||
155 | void snd_usb_proc_pcm_format_add(struct snd_usb_stream *stream) | |
156 | { | |
e5779998 DM |
157 | char name[32]; |
158 | struct snd_card *card = stream->chip->card; | |
159 | ||
160 | sprintf(name, "stream%d", stream->pcm_index); | |
7449054a | 161 | snd_card_ro_proc_new(card, name, stream, proc_pcm_format_read); |
e5779998 DM |
162 | } |
163 |