ASoC: sglt5000: Fix the default value of CHIP_SSS_CTRL
[linux-3.10.git] / sound / usb / proc.c
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 "endpoint.h"
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 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                 // snd_iprintf(buffer, "    Max Packet Size = %d\n", fp->maxpacksize);
114                 // snd_iprintf(buffer, "    EP Attribute = %#x\n", fp->attributes);
115         }
116 }
117
118 static 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
138 static 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
150 static 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
168 void 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