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e5779998 DM |
1 | /* |
2 | * This program is free software; you can redistribute it and/or modify | |
3 | * it under the terms of the GNU General Public License as published by | |
4 | * the Free Software Foundation; either version 2 of the License, or | |
5 | * (at your option) any later version. | |
6 | * | |
7 | * This program is distributed in the hope that it will be useful, | |
8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
10 | * GNU General Public License for more details. | |
11 | * | |
12 | * You should have received a copy of the GNU General Public License | |
13 | * along with this program; if not, write to the Free Software | |
14 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
15 | * | |
16 | */ | |
17 | ||
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" | |
c89a5d9c | 28 | #include "endpoint.h" |
e5779998 DM |
29 | #include "proc.h" |
30 | ||
31 | /* convert our full speed USB rate into sampling rate in Hz */ | |
32 | static inline unsigned get_full_speed_hz(unsigned int usb_rate) | |
33 | { | |
34 | return (usb_rate * 125 + (1 << 12)) >> 13; | |
35 | } | |
36 | ||
37 | /* convert our high speed USB rate into sampling rate in Hz */ | |
38 | static inline unsigned get_high_speed_hz(unsigned int usb_rate) | |
39 | { | |
40 | return (usb_rate * 125 + (1 << 9)) >> 10; | |
41 | } | |
42 | ||
43 | /* | |
44 | * common proc files to show the usb device info | |
45 | */ | |
46 | static 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 | ||
53 | static 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 | ||
62 | void 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 | * proc interface for list the supported pcm formats | |
73 | */ | |
74 | static 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; | |
015eb0b0 | 83 | snd_pcm_format_t fmt; |
e5779998 DM |
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); | |
015eb0b0 CL |
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"); | |
e5779998 DM |
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 | } | |
4f4e8f69 | 111 | if (snd_usb_get_speed(subs->dev) != USB_SPEED_FULL) |
e5779998 DM |
112 | snd_iprintf(buffer, " Data packet interval: %d us\n", |
113 | 125 * (1 << fp->datainterval)); | |
114 | // snd_iprintf(buffer, " Max Packet Size = %d\n", fp->maxpacksize); | |
115 | // snd_iprintf(buffer, " EP Attribute = %#x\n", fp->attributes); | |
116 | } | |
117 | } | |
118 | ||
22026c1a TI |
119 | static 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 | ||
e5779998 DM |
138 | static void proc_dump_substream_status(struct snd_usb_substream *subs, struct snd_info_buffer *buffer) |
139 | { | |
140 | if (subs->running) { | |
e5779998 DM |
141 | snd_iprintf(buffer, " Status: Running\n"); |
142 | snd_iprintf(buffer, " Interface = %d\n", subs->interface); | |
e11b4e0e | 143 | snd_iprintf(buffer, " Altset = %d\n", subs->altset_idx); |
22026c1a TI |
144 | proc_dump_ep_status(subs, subs->data_endpoint, buffer); |
145 | proc_dump_ep_status(subs, subs->sync_endpoint, buffer); | |
e5779998 DM |
146 | } else { |
147 | snd_iprintf(buffer, " Status: Stop\n"); | |
148 | } | |
149 | } | |
150 | ||
151 | static 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 | ||
169 | void 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 |