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_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 for the Virtual PCM test driver. 118 This driver is aimed at extended testing of the userspace applications 119 which use the ALSA API, as well as the PCM middle layer testing. 120 121 It can generate random or pattern-based data into the capture stream, 122 check the playback stream for containing the selected pattern, inject 123 time delays during capture/playback, redefine the RESET ioctl operation 124 to perform the PCM middle layer testing and inject errors during the 125 PCM callbacks. It supports both interleaved and non-interleaved access 126 modes. You can find the corresponding selftest in the 'alsa' 127 selftests folder. 128 129config SND_VIRMIDI 130 tristate "Virtual MIDI soundcard" 131 depends on SND_SEQUENCER 132 select SND_TIMER 133 select SND_RAWMIDI 134 select SND_SEQ_VIRMIDI 135 select SND_SEQ_MIDI_EVENT 136 help 137 Say Y here to include the virtual MIDI driver. This driver 138 allows to connect applications using raw MIDI devices to 139 sequencer clients. 140 141 If you don't know what MIDI is, say N here. 142 143 To compile this driver as a module, choose M here: the module 144 will be called snd-virmidi. 145 146config SND_MTPAV 147 tristate "MOTU MidiTimePiece AV multiport MIDI" 148 depends on HAS_IOPORT 149 select SND_RAWMIDI 150 help 151 To use a MOTU MidiTimePiece AV multiport MIDI adapter 152 connected to the parallel port, say Y here and make sure that 153 the standard parallel port driver isn't used for the port. 154 155 To compile this driver as a module, choose M here: the module 156 will be called snd-mtpav. 157 158config SND_MTS64 159 tristate "ESI Miditerminal 4140 driver" 160 depends on PARPORT 161 select SND_RAWMIDI 162 help 163 The ESI Miditerminal 4140 is a 4 In 4 Out MIDI Interface with 164 additional SMPTE Timecode capabilities for the parallel port. 165 166 Say 'Y' to include support for this device. 167 168 To compile this driver as a module, chose 'M' here: the module 169 will be called snd-mts64. 170 171config SND_SERIAL_U16550 172 tristate "UART16550 serial MIDI driver" 173 depends on HAS_IOPORT 174 select SND_RAWMIDI 175 help 176 To include support for MIDI serial port interfaces, say Y here 177 and read <file:Documentation/sound/cards/serial-u16550.rst>. 178 This driver works with serial UARTs 16550 and better. 179 180 This driver accesses the serial port hardware directly, so 181 make sure that the standard serial driver isn't used or 182 deactivated with setserial before loading this driver. 183 184 To compile this driver as a module, choose M here: the module 185 will be called snd-serial-u16550. 186 187config SND_SERIAL_GENERIC 188 tristate "Generic serial MIDI driver" 189 depends on SERIAL_DEV_BUS 190 depends on OF 191 select SND_RAWMIDI 192 help 193 To include support for mapping generic serial devices as raw 194 ALSA MIDI devices, say Y here. The driver only supports setting 195 the serial port to standard baudrates. To attain the standard MIDI 196 baudrate of 31.25 kBaud, configure the clock of the underlying serial 197 device so that a requested 38.4 kBaud will result in the standard speed. 198 199 Use this devicetree binding to configure serial port mapping 200 <file:Documentation/devicetree/bindings/sound/serial-midi.yaml> 201 202 To compile this driver as a module, choose M here: the module 203 will be called snd-serial-generic. 204 205config SND_MPU401 206 tristate "Generic MPU-401 UART driver" 207 depends on HAS_IOPORT 208 select SND_MPU401_UART 209 help 210 Say Y here to include support for MIDI ports compatible with 211 the Roland MPU-401 interface in UART mode. 212 213 To compile this driver as a module, choose M here: the module 214 will be called snd-mpu401. 215 216config SND_PORTMAN2X4 217 tristate "Portman 2x4 driver" 218 depends on PARPORT 219 select SND_RAWMIDI 220 help 221 Say Y here to include support for Midiman Portman 2x4 parallel 222 port MIDI device. 223 224 To compile this driver as a module, choose M here: the module 225 will be called snd-portman2x4. 226 227config SND_AC97_POWER_SAVE 228 bool "AC97 Power-Saving Mode" 229 depends on SND_AC97_CODEC 230 default n 231 help 232 Say Y here to enable the aggressive power-saving support of 233 AC97 codecs. In this mode, the power-mode is dynamically 234 controlled at each open/close. 235 236 The mode is activated by passing 'power_save=X' to the 237 snd-ac97-codec driver module, where 'X' is the time-out 238 value, a nonnegative integer that specifies how many 239 seconds of idle time the driver must count before it may 240 put the AC97 into power-save mode; a value of 0 (zero) 241 disables the use of this power-save mode. 242 243 After the snd-ac97-codec driver module has been loaded, 244 the 'power_save' parameter can be set via sysfs as follows: 245 246 echo 10 > /sys/module/snd_ac97_codec/parameters/power_save 247 248 In this case, the time-out is set to 10 seconds; setting 249 the time-out to 1 second (the minimum activation value) 250 isn't recommended because many applications try to reopen 251 the device frequently. A value of 10 seconds would be a 252 good choice for normal operations. 253 254 See Documentation/sound/designs/powersave.rst for more details. 255 256config SND_AC97_POWER_SAVE_DEFAULT 257 int "Default time-out for AC97 power-save mode" 258 depends on SND_AC97_POWER_SAVE 259 default 0 260 help 261 The default time-out value in seconds for AC97 automatic 262 power-save mode. 0 means to disable the power-save mode. 263 264 See SND_AC97_POWER_SAVE for more details. 265 266endif # SND_DRIVERS 267