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