linux/sound/pci/emu10k1
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
..
Makefile ALSA: emu10k1: Fix/cleanup ifdef CONFIG_PROC_FS 2015-05-29 07:56:42 +02:00
emu10k1.c ALSA: seq: Allow the modular sequencer registration 2017-06-12 08:43:33 +02:00
emu10k1_callback.c ALSA: emu10k1: constify snd_emux_operators structure 2017-02-19 22:07:29 +01:00
emu10k1_main.c ALSA: emu10k1: Use workqueue instead of kthread for emu1010 fw polling 2016-11-15 08:21:19 +01:00
emu10k1_patch.c ALSA: emu10k1: Use standard printk helpers 2014-02-26 16:45:27 +01:00
emu10k1_synth.c ALSA: seq: Define driver object in each driver 2015-02-12 14:15:54 +01:00
emu10k1_synth_local.h [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
emu10k1x.c ALSA: pci: constify snd_kcontrol_new structures 2017-02-21 22:01:21 +01:00
emufx.c ALSA: emu10k1: Get rid of set_fs() usage 2017-05-17 07:13:13 +02:00
emumixer.c ALSA: pci: constify snd_kcontrol_new structures 2017-02-21 22:01:21 +01:00
emumpu401.c ALSA: pci: Constify snd_rawmidi_ops 2017-01-12 12:50:26 +01:00
emupcm.c ALSA: emu10k1: Constify hw_constraints 2017-06-09 10:42:51 +02:00
emuproc.c ALSA: emu10k1: Fix/cleanup ifdef CONFIG_PROC_FS 2015-05-29 07:56:42 +02:00
io.c ALSA: emu10k1: Fix possible NULL dereference 2014-03-05 12:15:56 +01:00
irq.c ALSA: emu10k1: Use standard printk helpers 2014-02-26 16:45:27 +01:00
memory.c ALSA: emu10k1: Emu10k2 32 bit DMA mode 2015-04-29 07:27:30 +02:00
p16v.c ALSA: squash lines for simple wrapper functions 2016-09-07 20:35:29 +02:00
p16v.h Fix common misspellings 2011-03-31 11:26:23 -03:00
p17v.h [ALSA] emu10k1: Add Audio capture support for Audigy 2 ZS Notebook. 2007-02-09 09:02:17 +01:00
timer.c ALSA: pci: remove __dev* attributes 2012-12-07 07:20:55 +01:00
tina2.h [ALSA] emu10k1: Add support for Audigy4 (not Pro) 2006-06-22 21:32:37 +02:00
voice.c ALSA: emu10k1: Use standard printk helpers 2014-02-26 16:45:27 +01:00