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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 (!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 (!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 list_head *p;
77 static char *sync_types[4] = {
78 "NONE", "ASYNC", "ADAPTIVE", "SYNC"
79 };
80
81 list_for_each(p, &subs->fmt_list) {
82 struct audioformat *fp;
83 snd_pcm_format_t fmt;
84 fp = list_entry(p, struct audioformat, list);
85 snd_iprintf(buffer, " Interface %d\n", fp->iface);
86 snd_iprintf(buffer, " Altset %d\n", fp->altsetting);
87 snd_iprintf(buffer, " Format:");
88 for (fmt = 0; fmt <= SNDRV_PCM_FORMAT_LAST; ++fmt)
89 if (fp->formats & (1uLL << fmt))
90 snd_iprintf(buffer, " %s",
91 snd_pcm_format_name(fmt));
92 snd_iprintf(buffer, "\n");
93 snd_iprintf(buffer, " Channels: %d\n", fp->channels);
94 snd_iprintf(buffer, " Endpoint: %d %s (%s)\n",
95 fp->endpoint & USB_ENDPOINT_NUMBER_MASK,
96 fp->endpoint & USB_DIR_IN ? "IN" : "OUT",
97 sync_types[(fp->ep_attr & USB_ENDPOINT_SYNCTYPE) >> 2]);
98 if (fp->rates & SNDRV_PCM_RATE_CONTINUOUS) {
99 snd_iprintf(buffer, " Rates: %d - %d (continuous)\n",
100 fp->rate_min, fp->rate_max);
101 } else {
102 unsigned int i;
103 snd_iprintf(buffer, " Rates: ");
104 for (i = 0; i < fp->nr_rates; i++) {
105 if (i > 0)
106 snd_iprintf(buffer, ", ");
107 snd_iprintf(buffer, "%d", fp->rate_table[i]);
108 }
109 snd_iprintf(buffer, "\n");
110 }
111 if (snd_usb_get_speed(subs->dev) != USB_SPEED_FULL)
112 snd_iprintf(buffer, " Data packet interval: %d us\n",
113 125 * (1 << fp->datainterval));
114
115
116 }
117}
118
119static void proc_dump_ep_status(struct snd_usb_substream *subs,
120 struct snd_usb_endpoint *ep,
121 struct snd_info_buffer *buffer)
122{
123 if (!ep)
124 return;
125 snd_iprintf(buffer, " Packet Size = %d\n", ep->curpacksize);
126 snd_iprintf(buffer, " Momentary freq = %u Hz (%#x.%04x)\n",
127 snd_usb_get_speed(subs->dev) == USB_SPEED_FULL
128 ? get_full_speed_hz(ep->freqm)
129 : get_high_speed_hz(ep->freqm),
130 ep->freqm >> 16, ep->freqm & 0xffff);
131 if (ep->freqshift != INT_MIN) {
132 int res = 16 - ep->freqshift;
133 snd_iprintf(buffer, " Feedback Format = %d.%d\n",
134 (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, buffer);
145 proc_dump_ep_status(subs, subs->sync_endpoint, buffer);
146 } else {
147 snd_iprintf(buffer, " Status: Stop\n");
148 }
149}
150
151static void proc_pcm_format_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
152{
153 struct snd_usb_stream *stream = entry->private_data;
154
155 snd_iprintf(buffer, "%s : %s\n", stream->chip->card->longname, stream->pcm->name);
156
157 if (stream->substream[SNDRV_PCM_STREAM_PLAYBACK].num_formats) {
158 snd_iprintf(buffer, "\nPlayback:\n");
159 proc_dump_substream_status(&stream->substream[SNDRV_PCM_STREAM_PLAYBACK], buffer);
160 proc_dump_substream_formats(&stream->substream[SNDRV_PCM_STREAM_PLAYBACK], buffer);
161 }
162 if (stream->substream[SNDRV_PCM_STREAM_CAPTURE].num_formats) {
163 snd_iprintf(buffer, "\nCapture:\n");
164 proc_dump_substream_status(&stream->substream[SNDRV_PCM_STREAM_CAPTURE], buffer);
165 proc_dump_substream_formats(&stream->substream[SNDRV_PCM_STREAM_CAPTURE], buffer);
166 }
167}
168
169void snd_usb_proc_pcm_format_add(struct snd_usb_stream *stream)
170{
171 struct snd_info_entry *entry;
172 char name[32];
173 struct snd_card *card = stream->chip->card;
174
175 sprintf(name, "stream%d", stream->pcm_index);
176 if (!snd_card_proc_new(card, name, &entry))
177 snd_info_set_text_ops(entry, stream, proc_pcm_format_read);
178}
179
180
