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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" | |
28 | #include "proc.h" | |
29 | ||
30 | /* convert our full speed USB rate into sampling rate in Hz */ | |
31 | static inline unsigned get_full_speed_hz(unsigned int usb_rate) | |
32 | { | |
33 | return (usb_rate * 125 + (1 << 12)) >> 13; | |
34 | } | |
35 | ||
36 | /* convert our high speed USB rate into sampling rate in Hz */ | |
37 | static inline unsigned get_high_speed_hz(unsigned int usb_rate) | |
38 | { | |
39 | return (usb_rate * 125 + (1 << 9)) >> 10; | |
40 | } | |
41 | ||
42 | /* | |
43 | * common proc files to show the usb device info | |
44 | */ | |
45 | static void proc_audio_usbbus_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) | |
46 | { | |
47 | struct snd_usb_audio *chip = entry->private_data; | |
48 | if (!chip->shutdown) | |
49 | snd_iprintf(buffer, "%03d/%03d\n", chip->dev->bus->busnum, chip->dev->devnum); | |
50 | } | |
51 | ||
52 | static void proc_audio_usbid_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) | |
53 | { | |
54 | struct snd_usb_audio *chip = entry->private_data; | |
55 | if (!chip->shutdown) | |
56 | snd_iprintf(buffer, "%04x:%04x\n", | |
57 | USB_ID_VENDOR(chip->usb_id), | |
58 | USB_ID_PRODUCT(chip->usb_id)); | |
59 | } | |
60 | ||
61 | void snd_usb_audio_create_proc(struct snd_usb_audio *chip) | |
62 | { | |
63 | struct snd_info_entry *entry; | |
64 | if (!snd_card_proc_new(chip->card, "usbbus", &entry)) | |
65 | snd_info_set_text_ops(entry, chip, proc_audio_usbbus_read); | |
66 | if (!snd_card_proc_new(chip->card, "usbid", &entry)) | |
67 | snd_info_set_text_ops(entry, chip, proc_audio_usbid_read); | |
68 | } | |
69 | ||
70 | /* | |
71 | * proc interface for list the supported pcm formats | |
72 | */ | |
73 | static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct snd_info_buffer *buffer) | |
74 | { | |
75 | struct list_head *p; | |
76 | static char *sync_types[4] = { | |
77 | "NONE", "ASYNC", "ADAPTIVE", "SYNC" | |
78 | }; | |
79 | ||
80 | list_for_each(p, &subs->fmt_list) { | |
81 | struct audioformat *fp; | |
82 | fp = list_entry(p, struct audioformat, list); | |
83 | snd_iprintf(buffer, " Interface %d\n", fp->iface); | |
84 | snd_iprintf(buffer, " Altset %d\n", fp->altsetting); | |
85 | snd_iprintf(buffer, " Format: %s\n", | |
86 | snd_pcm_format_name(fp->format)); | |
87 | snd_iprintf(buffer, " Channels: %d\n", fp->channels); | |
88 | snd_iprintf(buffer, " Endpoint: %d %s (%s)\n", | |
89 | fp->endpoint & USB_ENDPOINT_NUMBER_MASK, | |
90 | fp->endpoint & USB_DIR_IN ? "IN" : "OUT", | |
91 | sync_types[(fp->ep_attr & USB_ENDPOINT_SYNCTYPE) >> 2]); | |
92 | if (fp->rates & SNDRV_PCM_RATE_CONTINUOUS) { | |
93 | snd_iprintf(buffer, " Rates: %d - %d (continuous)\n", | |
94 | fp->rate_min, fp->rate_max); | |
95 | } else { | |
96 | unsigned int i; | |
97 | snd_iprintf(buffer, " Rates: "); | |
98 | for (i = 0; i < fp->nr_rates; i++) { | |
99 | if (i > 0) | |
100 | snd_iprintf(buffer, ", "); | |
101 | snd_iprintf(buffer, "%d", fp->rate_table[i]); | |
102 | } | |
103 | snd_iprintf(buffer, "\n"); | |
104 | } | |
105 | if (snd_usb_get_speed(subs->dev) == USB_SPEED_HIGH) | |
106 | snd_iprintf(buffer, " Data packet interval: %d us\n", | |
107 | 125 * (1 << fp->datainterval)); | |
108 | // snd_iprintf(buffer, " Max Packet Size = %d\n", fp->maxpacksize); | |
109 | // snd_iprintf(buffer, " EP Attribute = %#x\n", fp->attributes); | |
110 | } | |
111 | } | |
112 | ||
113 | static void proc_dump_substream_status(struct snd_usb_substream *subs, struct snd_info_buffer *buffer) | |
114 | { | |
115 | if (subs->running) { | |
116 | unsigned int i; | |
117 | snd_iprintf(buffer, " Status: Running\n"); | |
118 | snd_iprintf(buffer, " Interface = %d\n", subs->interface); | |
e11b4e0e | 119 | snd_iprintf(buffer, " Altset = %d\n", subs->altset_idx); |
e5779998 DM |
120 | snd_iprintf(buffer, " URBs = %d [ ", subs->nurbs); |
121 | for (i = 0; i < subs->nurbs; i++) | |
122 | snd_iprintf(buffer, "%d ", subs->dataurb[i].packets); | |
123 | snd_iprintf(buffer, "]\n"); | |
124 | snd_iprintf(buffer, " Packet Size = %d\n", subs->curpacksize); | |
125 | snd_iprintf(buffer, " Momentary freq = %u Hz (%#x.%04x)\n", | |
126 | snd_usb_get_speed(subs->dev) == USB_SPEED_FULL | |
127 | ? get_full_speed_hz(subs->freqm) | |
128 | : get_high_speed_hz(subs->freqm), | |
129 | subs->freqm >> 16, subs->freqm & 0xffff); | |
130 | } else { | |
131 | snd_iprintf(buffer, " Status: Stop\n"); | |
132 | } | |
133 | } | |
134 | ||
135 | static void proc_pcm_format_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) | |
136 | { | |
137 | struct snd_usb_stream *stream = entry->private_data; | |
138 | ||
139 | snd_iprintf(buffer, "%s : %s\n", stream->chip->card->longname, stream->pcm->name); | |
140 | ||
141 | if (stream->substream[SNDRV_PCM_STREAM_PLAYBACK].num_formats) { | |
142 | snd_iprintf(buffer, "\nPlayback:\n"); | |
143 | proc_dump_substream_status(&stream->substream[SNDRV_PCM_STREAM_PLAYBACK], buffer); | |
144 | proc_dump_substream_formats(&stream->substream[SNDRV_PCM_STREAM_PLAYBACK], buffer); | |
145 | } | |
146 | if (stream->substream[SNDRV_PCM_STREAM_CAPTURE].num_formats) { | |
147 | snd_iprintf(buffer, "\nCapture:\n"); | |
148 | proc_dump_substream_status(&stream->substream[SNDRV_PCM_STREAM_CAPTURE], buffer); | |
149 | proc_dump_substream_formats(&stream->substream[SNDRV_PCM_STREAM_CAPTURE], buffer); | |
150 | } | |
151 | } | |
152 | ||
153 | void snd_usb_proc_pcm_format_add(struct snd_usb_stream *stream) | |
154 | { | |
155 | struct snd_info_entry *entry; | |
156 | char name[32]; | |
157 | struct snd_card *card = stream->chip->card; | |
158 | ||
159 | sprintf(name, "stream%d", stream->pcm_index); | |
160 | if (!snd_card_proc_new(card, name, &entry)) | |
161 | snd_info_set_text_ops(entry, stream, proc_pcm_format_read); | |
162 | } | |
163 |