1 # SPDX-License-Identifier: GPL-2.0-only 1 # SPDX-License-Identifier: GPL-2.0-only
2 config SND_MPU401_UART 2 config SND_MPU401_UART
3 tristate 3 tristate
4 select SND_RAWMIDI 4 select SND_RAWMIDI
5 5
6 config SND_OPL3_LIB 6 config SND_OPL3_LIB
7 tristate 7 tristate
8 select SND_TIMER 8 select SND_TIMER
9 select SND_HWDEP 9 select SND_HWDEP
10 select SND_SEQ_DEVICE if SND_SEQUENCER 10 select SND_SEQ_DEVICE if SND_SEQUENCER != n
11 11
12 config SND_OPL4_LIB 12 config SND_OPL4_LIB
13 tristate 13 tristate
14 select SND_TIMER 14 select SND_TIMER
15 select SND_HWDEP 15 select SND_HWDEP
16 select SND_SEQ_DEVICE if SND_SEQUENCER 16 select SND_SEQ_DEVICE if SND_SEQUENCER != n
17 17
18 # select SEQ stuff to min(SND_SEQUENCER,SND_XX 18 # select SEQ stuff to min(SND_SEQUENCER,SND_XXX)
19 config SND_OPL3_LIB_SEQ 19 config SND_OPL3_LIB_SEQ
20 def_tristate SND_SEQUENCER && SND_OPL3 20 def_tristate SND_SEQUENCER && SND_OPL3_LIB
21 select SND_SEQ_MIDI_EMUL 21 select SND_SEQ_MIDI_EMUL
22 select SND_SEQ_MIDI_EVENT 22 select SND_SEQ_MIDI_EVENT
23 23
24 config SND_OPL4_LIB_SEQ 24 config SND_OPL4_LIB_SEQ
25 def_tristate SND_SEQUENCER && SND_OPL4 25 def_tristate SND_SEQUENCER && SND_OPL4_LIB
26 select SND_SEQ_MIDI_EMUL 26 select SND_SEQ_MIDI_EMUL
27 select SND_SEQ_MIDI_EVENT 27 select SND_SEQ_MIDI_EVENT
28 28
29 config SND_VX_LIB 29 config SND_VX_LIB
30 tristate 30 tristate
31 select FW_LOADER 31 select FW_LOADER
32 select SND_HWDEP 32 select SND_HWDEP
33 select SND_PCM 33 select SND_PCM
34 34
35 config SND_AC97_CODEC 35 config SND_AC97_CODEC
36 tristate 36 tristate
37 select SND_PCM 37 select SND_PCM
38 select AC97_BUS 38 select AC97_BUS
39 select SND_VMASTER 39 select SND_VMASTER
40 40
41 menuconfig SND_DRIVERS 41 menuconfig SND_DRIVERS
42 bool "Generic sound devices" 42 bool "Generic sound devices"
43 default y 43 default y
44 help 44 help
45 Support for generic sound devices. 45 Support for generic sound devices.
46 46
47 if SND_DRIVERS 47 if SND_DRIVERS
48 48
49 config SND_PCSP 49 config SND_PCSP
50 tristate "PC-Speaker support (READ HEL 50 tristate "PC-Speaker support (READ HELP!)"
51 depends on PCSPKR_PLATFORM && X86 && H 51 depends on PCSPKR_PLATFORM && X86 && HIGH_RES_TIMERS
52 depends on INPUT 52 depends on INPUT
53 select SND_PCM 53 select SND_PCM
54 help 54 help
55 If you don't have a sound card in yo 55 If you don't have a sound card in your computer, you can include a
56 driver for the PC speaker which allo 56 driver for the PC speaker which allows it to act like a primitive
57 sound card. 57 sound card.
58 This driver also replaces the pcspkr 58 This driver also replaces the pcspkr driver for beeps.
59 59
60 You can compile this as a module whi 60 You can compile this as a module which will be called snd-pcsp.
61 61
62 WARNING: if you already have a sound 62 WARNING: if you already have a soundcard, enabling this
63 driver may lead to a problem. Namely 63 driver may lead to a problem. Namely, it may get loaded
64 before the other sound driver of you 64 before the other sound driver of yours, making the
65 pc-speaker a default sound device. W 65 pc-speaker a default sound device. Which is likely not
66 what you want. To make this driver p 66 what you want. To make this driver play nicely with other
67 sound driver, you can add this in a 67 sound driver, you can add this in a configuration file under
68 /etc/modprobe.d/ directory: 68 /etc/modprobe.d/ directory:
69 options snd-pcsp index=2 69 options snd-pcsp index=2
70 70
71 You don't need this driver if you on 71 You don't need this driver if you only want your pc-speaker to beep.
72 You don't need this driver if you ha 72 You don't need this driver if you have a tablet piezo beeper
73 in your PC instead of the real speak 73 in your PC instead of the real speaker.
74 74
75 Say N if you have a sound card. 75 Say N if you have a sound card.
76 Say M if you don't. 76 Say M if you don't.
77 Say Y only if you really know what y 77 Say Y only if you really know what you do.
78 78
79 config SND_DUMMY 79 config SND_DUMMY
80 tristate "Dummy (/dev/null) soundcard" 80 tristate "Dummy (/dev/null) soundcard"
81 select SND_PCM 81 select SND_PCM
82 help 82 help
83 Say Y here to include the dummy driv 83 Say Y here to include the dummy driver. This driver does
84 nothing, but emulates various mixer 84 nothing, but emulates various mixer controls and PCM devices.
85 85
86 You don't need this unless you're te 86 You don't need this unless you're testing the hardware support
87 of programs using the ALSA API. 87 of programs using the ALSA API.
88 88
89 To compile this driver as a module, 89 To compile this driver as a module, choose M here: the module
90 will be called snd-dummy. 90 will be called snd-dummy.
91 91
92 config SND_ALOOP 92 config SND_ALOOP
93 tristate "Generic loopback driver (PCM 93 tristate "Generic loopback driver (PCM)"
94 select SND_PCM 94 select SND_PCM
95 select SND_TIMER 95 select SND_TIMER
96 help 96 help
97 Say 'Y' or 'M' to include support fo 97 Say 'Y' or 'M' to include support for the PCM loopback device.
98 This module returns played samples b 98 This module returns played samples back to the user space using
99 the standard ALSA PCM device. The de 99 the standard ALSA PCM device. The devices are routed 0->1 and
100 1->0, where first number is the play 100 1->0, where first number is the playback PCM device and second
101 number is the capture device. Module 101 number is the capture device. Module creates two PCM devices and
102 configured number of substreams (see 102 configured number of substreams (see the pcm_substreams module
103 parameter). 103 parameter).
104 104
105 The loopback device allows time sync 105 The loopback device allows time synchronization with an external
106 timing source using the time shift u 106 timing source using the time shift universal control (+-20%
107 of system time). 107 of system time).
108 108
109 To compile this driver as a module, 109 To compile this driver as a module, choose M here: the module
110 will be called snd-aloop. 110 will be called snd-aloop.
111 111
112 config SND_PCMTEST <<
113 tristate "Virtual PCM test driver" <<
114 depends on DEBUG_FS <<
115 select SND_PCM <<
116 help <<
117 Say 'Y' or 'M' to include support fo <<
118 This driver is aimed at extended tes <<
119 which use the ALSA API, as well as t <<
120 <<
121 It can generate random or pattern-ba <<
122 check the playback stream for contai <<
123 time delays during capture/playback, <<
124 to perform the PCM middle layer test <<
125 PCM callbacks. It supports both inte <<
126 modes. You can find the correspondin <<
127 selftests folder. <<
128 <<
129 config SND_VIRMIDI 112 config SND_VIRMIDI
130 tristate "Virtual MIDI soundcard" 113 tristate "Virtual MIDI soundcard"
131 depends on SND_SEQUENCER 114 depends on SND_SEQUENCER
132 select SND_TIMER 115 select SND_TIMER
133 select SND_RAWMIDI 116 select SND_RAWMIDI
134 select SND_SEQ_VIRMIDI 117 select SND_SEQ_VIRMIDI
135 select SND_SEQ_MIDI_EVENT 118 select SND_SEQ_MIDI_EVENT
136 help 119 help
137 Say Y here to include the virtual MI 120 Say Y here to include the virtual MIDI driver. This driver
138 allows to connect applications using 121 allows to connect applications using raw MIDI devices to
139 sequencer clients. 122 sequencer clients.
140 123
141 If you don't know what MIDI is, say 124 If you don't know what MIDI is, say N here.
142 125
143 To compile this driver as a module, 126 To compile this driver as a module, choose M here: the module
144 will be called snd-virmidi. 127 will be called snd-virmidi.
145 128
146 config SND_MTPAV 129 config SND_MTPAV
147 tristate "MOTU MidiTimePiece AV multip 130 tristate "MOTU MidiTimePiece AV multiport MIDI"
148 depends on HAS_IOPORT <<
149 select SND_RAWMIDI 131 select SND_RAWMIDI
150 help 132 help
151 To use a MOTU MidiTimePiece AV multi 133 To use a MOTU MidiTimePiece AV multiport MIDI adapter
152 connected to the parallel port, say 134 connected to the parallel port, say Y here and make sure that
153 the standard parallel port driver is 135 the standard parallel port driver isn't used for the port.
154 136
155 To compile this driver as a module, 137 To compile this driver as a module, choose M here: the module
156 will be called snd-mtpav. 138 will be called snd-mtpav.
157 139
158 config SND_MTS64 140 config SND_MTS64
159 tristate "ESI Miditerminal 4140 driver 141 tristate "ESI Miditerminal 4140 driver"
160 depends on PARPORT 142 depends on PARPORT
161 select SND_RAWMIDI 143 select SND_RAWMIDI
162 help 144 help
163 The ESI Miditerminal 4140 is a 4 In 145 The ESI Miditerminal 4140 is a 4 In 4 Out MIDI Interface with
164 additional SMPTE Timecode capabiliti 146 additional SMPTE Timecode capabilities for the parallel port.
165 147
166 Say 'Y' to include support for this 148 Say 'Y' to include support for this device.
167 149
168 To compile this driver as a module, 150 To compile this driver as a module, chose 'M' here: the module
169 will be called snd-mts64. 151 will be called snd-mts64.
170 152
171 config SND_SERIAL_U16550 153 config SND_SERIAL_U16550
172 tristate "UART16550 serial MIDI driver 154 tristate "UART16550 serial MIDI driver"
173 depends on HAS_IOPORT <<
174 select SND_RAWMIDI 155 select SND_RAWMIDI
175 help 156 help
176 To include support for MIDI serial p 157 To include support for MIDI serial port interfaces, say Y here
177 and read <file:Documentation/sound/c 158 and read <file:Documentation/sound/cards/serial-u16550.rst>.
178 This driver works with serial UARTs 159 This driver works with serial UARTs 16550 and better.
179 160
180 This driver accesses the serial port 161 This driver accesses the serial port hardware directly, so
181 make sure that the standard serial d 162 make sure that the standard serial driver isn't used or
182 deactivated with setserial before lo 163 deactivated with setserial before loading this driver.
183 164
184 To compile this driver as a module, 165 To compile this driver as a module, choose M here: the module
185 will be called snd-serial-u16550. 166 will be called snd-serial-u16550.
186 167
187 config SND_SERIAL_GENERIC 168 config SND_SERIAL_GENERIC
188 tristate "Generic serial MIDI driver" 169 tristate "Generic serial MIDI driver"
189 depends on SERIAL_DEV_BUS 170 depends on SERIAL_DEV_BUS
190 depends on OF 171 depends on OF
191 select SND_RAWMIDI 172 select SND_RAWMIDI
192 help 173 help
193 To include support for mapping gener 174 To include support for mapping generic serial devices as raw
194 ALSA MIDI devices, say Y here. The d 175 ALSA MIDI devices, say Y here. The driver only supports setting
195 the serial port to standard baudrate 176 the serial port to standard baudrates. To attain the standard MIDI
196 baudrate of 31.25 kBaud, configure t 177 baudrate of 31.25 kBaud, configure the clock of the underlying serial
197 device so that a requested 38.4 kBau 178 device so that a requested 38.4 kBaud will result in the standard speed.
198 179
199 Use this devicetree binding to confi 180 Use this devicetree binding to configure serial port mapping
200 <file:Documentation/devicetree/bindi 181 <file:Documentation/devicetree/bindings/sound/serial-midi.yaml>
201 182
202 To compile this driver as a module, 183 To compile this driver as a module, choose M here: the module
203 will be called snd-serial-generic. 184 will be called snd-serial-generic.
204 185
205 config SND_MPU401 186 config SND_MPU401
206 tristate "Generic MPU-401 UART driver" 187 tristate "Generic MPU-401 UART driver"
207 depends on HAS_IOPORT <<
208 select SND_MPU401_UART 188 select SND_MPU401_UART
209 help 189 help
210 Say Y here to include support for MI 190 Say Y here to include support for MIDI ports compatible with
211 the Roland MPU-401 interface in UART 191 the Roland MPU-401 interface in UART mode.
212 192
213 To compile this driver as a module, 193 To compile this driver as a module, choose M here: the module
214 will be called snd-mpu401. 194 will be called snd-mpu401.
215 195
216 config SND_PORTMAN2X4 196 config SND_PORTMAN2X4
217 tristate "Portman 2x4 driver" 197 tristate "Portman 2x4 driver"
218 depends on PARPORT 198 depends on PARPORT
219 select SND_RAWMIDI 199 select SND_RAWMIDI
220 help 200 help
221 Say Y here to include support for Mi 201 Say Y here to include support for Midiman Portman 2x4 parallel
222 port MIDI device. 202 port MIDI device.
223 203
224 To compile this driver as a module, 204 To compile this driver as a module, choose M here: the module
225 will be called snd-portman2x4. 205 will be called snd-portman2x4.
226 206
227 config SND_AC97_POWER_SAVE 207 config SND_AC97_POWER_SAVE
228 bool "AC97 Power-Saving Mode" 208 bool "AC97 Power-Saving Mode"
229 depends on SND_AC97_CODEC 209 depends on SND_AC97_CODEC
230 default n 210 default n
231 help 211 help
232 Say Y here to enable the aggressive 212 Say Y here to enable the aggressive power-saving support of
233 AC97 codecs. In this mode, the powe 213 AC97 codecs. In this mode, the power-mode is dynamically
234 controlled at each open/close. 214 controlled at each open/close.
235 215
236 The mode is activated by passing 'po 216 The mode is activated by passing 'power_save=X' to the
237 snd-ac97-codec driver module, where 217 snd-ac97-codec driver module, where 'X' is the time-out
238 value, a nonnegative integer that sp 218 value, a nonnegative integer that specifies how many
239 seconds of idle time the driver must 219 seconds of idle time the driver must count before it may
240 put the AC97 into power-save mode; 220 put the AC97 into power-save mode; a value of 0 (zero)
241 disables the use of this power-save 221 disables the use of this power-save mode.
242 222
243 After the snd-ac97-codec driver modu 223 After the snd-ac97-codec driver module has been loaded,
244 the 'power_save' parameter can be se 224 the 'power_save' parameter can be set via sysfs as follows:
245 225
246 echo 10 > /sys/module/snd_ac97_cod 226 echo 10 > /sys/module/snd_ac97_codec/parameters/power_save
247 227
248 In this case, the time-out is set to 228 In this case, the time-out is set to 10 seconds; setting
249 the time-out to 1 second (the minimu 229 the time-out to 1 second (the minimum activation value)
250 isn't recommended because many appli 230 isn't recommended because many applications try to reopen
251 the device frequently. A value of 1 231 the device frequently. A value of 10 seconds would be a
252 good choice for normal operations. 232 good choice for normal operations.
253 233
254 See Documentation/sound/designs/powe 234 See Documentation/sound/designs/powersave.rst for more details.
255 235
256 config SND_AC97_POWER_SAVE_DEFAULT 236 config SND_AC97_POWER_SAVE_DEFAULT
257 int "Default time-out for AC97 power-s 237 int "Default time-out for AC97 power-save mode"
258 depends on SND_AC97_POWER_SAVE 238 depends on SND_AC97_POWER_SAVE
259 default 0 239 default 0
260 help 240 help
261 The default time-out value in second 241 The default time-out value in seconds for AC97 automatic
262 power-save mode. 0 means to disable 242 power-save mode. 0 means to disable the power-save mode.
263 243
264 See SND_AC97_POWER_SAVE for more det 244 See SND_AC97_POWER_SAVE for more details.
265 245
266 endif # SND_DRIVERS 246 endif # SND_DRIVERS
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