linux/sound/isa/sb
Takashi Iwai 111b0cdb97 ALSA: seq: Allow the modular sequencer registration
Many drivers bind the sequencer stuff in off-load by another driver
module, so that it's loaded only on demand.  In the current code, this
mechanism doesn't work when the driver is built-in while the sequencer
is module.  We check with IS_REACHABLE() and enable only when the
sequencer is in the same level of build.

However, this is basically a overshoot.  The binder code
(snd-seq-device) is an individual module from the sequencer core
(snd-seq), and we just have to make the former a built-in while
keeping the latter a module for allowing the scenario like the above.

This patch achieves that by rewriting Kconfig slightly.  Now, a driver
that provides the manual sequencer device binding should select
CONFIG_SND_SEQ_DEVICE in a way as
	select SND_SEQ_DEVICE if SND_SEQUENCER != n

Note that the "!=n" is needed here to avoid the influence of the
sequencer core is module while the driver is built-in.

Also, since rawmidi.o may be linked with snd_seq_device.o when
built-in, we have to shuffle the code to make the linker happy.
(the kernel linker isn't smart enough yet to handle such a case.)
That is, snd_seq_device.c is moved to sound/core from sound/core/seq,
as well as Makefile.

Last but not least, the patch replaces the code using IS_REACHABLE()
with IS_ENABLED(), since now the condition meets always when enabled.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-06-12 08:43:33 +02:00
..
emu8000_callback.c ALSA: seq: Allow the tristate build of OSS emulation 2017-06-09 22:09:45 +02:00
emu8000_local.h [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
emu8000_patch.c sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
emu8000_pcm.c ALSA: sb: Convert to the new PCM ops 2017-06-02 19:38:02 +02:00
emu8000_synth.c ALSA: seq: Define driver object in each driver 2015-02-12 14:15:54 +01:00
emu8000.c ALSA: seq: Allow the modular sequencer registration 2017-06-12 08:43:33 +02:00
jazz16.c Annotate hardware config module parameters in sound/isa/ 2017-04-20 12:02:32 +01:00
Makefile ALSA: Merge es1688 and es968 drivers 2010-05-10 09:49:30 +02:00
sb8_main.c ALSA: sb: Constify hw_constraints 2017-06-09 10:42:48 +02:00
sb8_midi.c ALSA: isa: Constify snd_rawmidi_ops 2017-01-12 12:50:16 +01:00
sb8.c Annotate hardware config module parameters in sound/isa/ 2017-04-20 12:02:32 +01:00
sb16_csp.c ALSA: sound/isa: constify snd_kcontrol_new structures 2017-05-21 09:07:56 +02:00
sb16_main.c ALSA: sound/isa: constify snd_kcontrol_new structures 2017-05-21 09:07:56 +02:00
sb16.c ALSA: seq: Allow the modular sequencer registration 2017-06-12 08:43:33 +02:00
sb_common.c ALSA: Include linux/io.h instead of asm/io.h 2015-01-28 16:49:33 +01:00
sb_mixer.c ALSA: Include linux/io.h instead of asm/io.h 2015-01-28 16:49:33 +01:00
sbawe.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00