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18#include <linux/init.h>
19#include <linux/usb.h>
20
21#include <sound/core.h>
22#include <sound/info.h>
23#include <sound/pcm.h>
24
25#include "usbaudio.h"
26#include "helper.h"
27#include "card.h"
28#include "endpoint.h"
29#include "proc.h"
30
31
32static inline unsigned get_full_speed_hz(unsigned int usb_rate)
33{
34 return (usb_rate * 125 + (1 << 12)) >> 13;
35}
36
37
38static inline unsigned get_high_speed_hz(unsigned int usb_rate)
39{
40 return (usb_rate * 125 + (1 << 9)) >> 10;
41}
42
43
44
45
46static void proc_audio_usbbus_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
47{
48 struct snd_usb_audio *chip = entry->private_data;
49 if (!atomic_read(&chip->shutdown))
50 snd_iprintf(buffer, "%03d/%03d\n", chip->dev->bus->busnum, chip->dev->devnum);
51}
52
53static void proc_audio_usbid_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
54{
55 struct snd_usb_audio *chip = entry->private_data;
56 if (!atomic_read(&chip->shutdown))
57 snd_iprintf(buffer, "%04x:%04x\n",
58 USB_ID_VENDOR(chip->usb_id),
59 USB_ID_PRODUCT(chip->usb_id));
60}
61
62void snd_usb_audio_create_proc(struct snd_usb_audio *chip)
63{
64 struct snd_info_entry *entry;
65 if (!snd_card_proc_new(chip->card, "usbbus", &entry))
66 snd_info_set_text_ops(entry, chip, proc_audio_usbbus_read);
67 if (!snd_card_proc_new(chip->card, "usbid", &entry))
68 snd_info_set_text_ops(entry, chip, proc_audio_usbid_read);
69}
70
71
72
73
74static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct snd_info_buffer *buffer)
75{
76 struct audioformat *fp;
77 static char *sync_types[4] = {
78 "NONE", "ASYNC", "ADAPTIVE", "SYNC"
79 };
80
81 list_for_each_entry(fp, &subs->fmt_list, list) {
82 snd_pcm_format_t fmt;
83
84 snd_iprintf(buffer, " Interface %d\n", fp->iface);
85 snd_iprintf(buffer, " Altset %d\n", fp->altsetting);
86 snd_iprintf(buffer, " Format:");
87 for (fmt = 0; fmt <= SNDRV_PCM_FORMAT_LAST; ++fmt)
88 if (fp->formats & pcm_format_to_bits(fmt))
89 snd_iprintf(buffer, " %s",
90 snd_pcm_format_name(fmt));
91 snd_iprintf(buffer, "\n");
92 snd_iprintf(buffer, " Channels: %d\n", fp->channels);
93 snd_iprintf(buffer, " Endpoint: %d %s (%s)\n",
94 fp->endpoint & USB_ENDPOINT_NUMBER_MASK,
95 fp->endpoint & USB_DIR_IN ? "IN" : "OUT",
96 sync_types[(fp->ep_attr & USB_ENDPOINT_SYNCTYPE) >> 2]);
97 if (fp->rates & SNDRV_PCM_RATE_CONTINUOUS) {
98 snd_iprintf(buffer, " Rates: %d - %d (continuous)\n",
99 fp->rate_min, fp->rate_max);
100 } else {
101 unsigned int i;
102 snd_iprintf(buffer, " Rates: ");
103 for (i = 0; i < fp->nr_rates; i++) {
104 if (i > 0)
105 snd_iprintf(buffer, ", ");
106 snd_iprintf(buffer, "%d", fp->rate_table[i]);
107 }
108 snd_iprintf(buffer, "\n");
109 }
110 if (subs->speed != USB_SPEED_FULL)
111 snd_iprintf(buffer, " Data packet interval: %d us\n",
112 125 * (1 << fp->datainterval));
113
114
115 }
116}
117
118static void proc_dump_ep_status(struct snd_usb_substream *subs,
119 struct snd_usb_endpoint *data_ep,
120 struct snd_usb_endpoint *sync_ep,
121 struct snd_info_buffer *buffer)
122{
123 if (!data_ep)
124 return;
125 snd_iprintf(buffer, " Packet Size = %d\n", data_ep->curpacksize);
126 snd_iprintf(buffer, " Momentary freq = %u Hz (%#x.%04x)\n",
127 subs->speed == USB_SPEED_FULL
128 ? get_full_speed_hz(data_ep->freqm)
129 : get_high_speed_hz(data_ep->freqm),
130 data_ep->freqm >> 16, data_ep->freqm & 0xffff);
131 if (sync_ep && data_ep->freqshift != INT_MIN) {
132 int res = 16 - data_ep->freqshift;
133 snd_iprintf(buffer, " Feedback Format = %d.%d\n",
134 (sync_ep->syncmaxsize > 3 ? 32 : 24) - res, res);
135 }
136}
137
138static void proc_dump_substream_status(struct snd_usb_substream *subs, struct snd_info_buffer *buffer)
139{
140 if (subs->running) {
141 snd_iprintf(buffer, " Status: Running\n");
142 snd_iprintf(buffer, " Interface = %d\n", subs->interface);
143 snd_iprintf(buffer, " Altset = %d\n", subs->altset_idx);
144 proc_dump_ep_status(subs, subs->data_endpoint, subs->sync_endpoint, buffer);
145 } else {
146 snd_iprintf(buffer, " Status: Stop\n");
147 }
148}
149
150static void proc_pcm_format_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
151{
152 struct snd_usb_stream *stream = entry->private_data;
153
154 snd_iprintf(buffer, "%s : %s\n", stream->chip->card->longname, stream->pcm->name);
155
156 if (stream->substream[SNDRV_PCM_STREAM_PLAYBACK].num_formats) {
157 snd_iprintf(buffer, "\nPlayback:\n");
158 proc_dump_substream_status(&stream->substream[SNDRV_PCM_STREAM_PLAYBACK], buffer);
159 proc_dump_substream_formats(&stream->substream[SNDRV_PCM_STREAM_PLAYBACK], buffer);
160 }
161 if (stream->substream[SNDRV_PCM_STREAM_CAPTURE].num_formats) {
162 snd_iprintf(buffer, "\nCapture:\n");
163 proc_dump_substream_status(&stream->substream[SNDRV_PCM_STREAM_CAPTURE], buffer);
164 proc_dump_substream_formats(&stream->substream[SNDRV_PCM_STREAM_CAPTURE], buffer);
165 }
166}
167
168void snd_usb_proc_pcm_format_add(struct snd_usb_stream *stream)
169{
170 struct snd_info_entry *entry;
171 char name[32];
172 struct snd_card *card = stream->chip->card;
173
174 sprintf(name, "stream%d", stream->pcm_index);
175 if (!snd_card_proc_new(card, name, &entry))
176 snd_info_set_text_ops(entry, stream, proc_pcm_format_read);
177}
178
179
