ALSA: clean up the logic for building sequencer modules

Instead of mangling the CONFIG_* variables in the makefiles over and
over, set a few helper variables in Kconfig.
Signed-off-by: Michal Marek <mmarek@suse.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/core/Kconfig

@@ -205,3 +205,5 @@ config SND_PCM_XRUN_DEBUG
 
 config SND_VMASTER
 	bool
+
+source "sound/core/seq/Kconfig"

sound/core/seq/Kconfig

+# define SND_XXX_SEQ to min(SND_SEQUENCER,SND_XXX)
+
+config SND_RAWMIDI_SEQ
+	def_tristate SND_SEQUENCER && SND_RAWMIDI
+
+config SND_OPL3_LIB_SEQ
+	def_tristate SND_SEQUENCER && SND_OPL3_LIB
+
+config SND_OPL4_LIB_SEQ
+	def_tristate SND_SEQUENCER && SND_OPL4_LIB
+
+config SND_SBAWE_SEQ
+	def_tristate SND_SEQUENCER && SND_SBAWE
+
+config SND_EMU10K1_SEQ
+	def_tristate SND_SEQUENCER && SND_EMU10K1

sound/core/seq/Makefile

@@ -17,14 +17,6 @@ snd-seq-midi-event-objs := seq_midi_event.o
 snd-seq-dummy-objs := seq_dummy.o
 snd-seq-virmidi-objs := seq_virmidi.o
 
-#
-# this function returns:
-#   "m" - CONFIG_SND_SEQUENCER is m
-#   <empty string> - CONFIG_SND_SEQUENCER is undefined
-#   otherwise parameter #1 value
-#
-sequencer = $(if $(subst y,,$(CONFIG_SND_SEQUENCER)),$(if $(1),m),$(if $(CONFIG_SND_SEQUENCER),$(1)))
-
 obj-$(CONFIG_SND_SEQUENCER) += snd-seq.o snd-seq-device.o
 ifeq ($(CONFIG_SND_SEQUENCER_OSS),y)
 obj-$(CONFIG_SND_SEQUENCER) += snd-seq-midi-event.o
@@ -33,8 +25,8 @@ obj-$(CONFIG_SND_SEQ_DUMMY) += snd-seq-dummy.o
 
 # Toplevel Module Dependency
 obj-$(CONFIG_SND_VIRMIDI) += snd-seq-virmidi.o snd-seq-midi-event.o
-obj-$(call sequencer,$(CONFIG_SND_RAWMIDI)) += snd-seq-midi.o snd-seq-midi-event.o
-obj-$(call sequencer,$(CONFIG_SND_OPL3_LIB)) += snd-seq-midi-event.o snd-seq-midi-emul.o
-obj-$(call sequencer,$(CONFIG_SND_OPL4_LIB)) += snd-seq-midi-event.o snd-seq-midi-emul.o
-obj-$(call sequencer,$(CONFIG_SND_SBAWE)) += snd-seq-midi-emul.o snd-seq-virmidi.o
-obj-$(call sequencer,$(CONFIG_SND_EMU10K1)) += snd-seq-midi-emul.o snd-seq-virmidi.o
+obj-$(CONFIG_SND_RAWMIDI_SEQ) += snd-seq-midi.o snd-seq-midi-event.o
+obj-$(CONFIG_SND_OPL3_LIB_SEQ) += snd-seq-midi-event.o snd-seq-midi-emul.o
+obj-$(CONFIG_SND_OPL4_LIB_SEQ) += snd-seq-midi-event.o snd-seq-midi-emul.o
+obj-$(CONFIG_SND_SBAWE_SEQ) += snd-seq-midi-emul.o snd-seq-virmidi.o
+obj-$(CONFIG_SND_EMU10K1_SEQ) += snd-seq-midi-emul.o snd-seq-virmidi.o

sound/drivers/opl3/Makefile

@@ -7,14 +7,6 @@ snd-opl3-lib-objs := opl3_lib.o opl3_synth.o
 snd-opl3-synth-y := opl3_seq.o opl3_midi.o opl3_drums.o
 snd-opl3-synth-$(CONFIG_SND_SEQUENCER_OSS) += opl3_oss.o
 
-#
-# this function returns:
-#   "m" - CONFIG_SND_SEQUENCER is m
-#   <empty string> - CONFIG_SND_SEQUENCER is undefined
-#   otherwise parameter #1 value
-#
-sequencer = $(if $(subst y,,$(CONFIG_SND_SEQUENCER)),$(if $(1),m),$(if $(CONFIG_SND_SEQUENCER),$(1)))
-
 obj-$(CONFIG_SND_OPL3_LIB) += snd-opl3-lib.o
 obj-$(CONFIG_SND_OPL4_LIB) += snd-opl3-lib.o
-obj-$(call sequencer,$(CONFIG_SND_OPL3_LIB)) += snd-opl3-synth.o
+obj-$(CONFIG_SND_OPL3_LIB_SEQ) += snd-opl3-synth.o

sound/drivers/opl4/Makefile

@@ -6,13 +6,5 @@
 snd-opl4-lib-objs := opl4_lib.o opl4_mixer.o opl4_proc.o
 snd-opl4-synth-objs := opl4_seq.o opl4_synth.o yrw801.o
 
-#
-# this function returns:
-#   "m" - CONFIG_SND_SEQUENCER is m
-#   <empty string> - CONFIG_SND_SEQUENCER is undefined
-#   otherwise parameter #1 value
-#
-sequencer = $(if $(subst y,,$(CONFIG_SND_SEQUENCER)),$(if $(1),m),$(if $(CONFIG_SND_SEQUENCER),$(1)))
-
 obj-$(CONFIG_SND_OPL4_LIB) += snd-opl4-lib.o
-obj-$(call sequencer,$(CONFIG_SND_OPL4_LIB)) += snd-opl4-synth.o
+obj-$(CONFIG_SND_OPL4_LIB_SEQ) += snd-opl4-synth.o

sound/isa/sb/Makefile

@@ -13,14 +13,6 @@ snd-sbawe-objs := sbawe.o emu8000.o
 snd-emu8000-synth-objs := emu8000_synth.o emu8000_callback.o emu8000_patch.o emu8000_pcm.o
 snd-es968-objs := es968.o
 
-#
-# this function returns:
-#   "m" - CONFIG_SND_SEQUENCER is m
-#   <empty string> - CONFIG_SND_SEQUENCER is undefined
-#   otherwise parameter #1 value
-#
-sequencer = $(if $(subst y,,$(CONFIG_SND_SEQUENCER)),$(if $(1),m),$(if $(CONFIG_SND_SEQUENCER),$(1)))
-
 # Toplevel Module Dependency
 obj-$(CONFIG_SND_SB_COMMON) += snd-sb-common.o
 obj-$(CONFIG_SND_SB16_DSP) += snd-sb16-dsp.o
@@ -33,4 +25,4 @@ ifeq ($(CONFIG_SND_SB16_CSP),y)
   obj-$(CONFIG_SND_SB16) += snd-sb16-csp.o
   obj-$(CONFIG_SND_SBAWE) += snd-sb16-csp.o
 endif
-obj-$(call sequencer,$(CONFIG_SND_SBAWE)) += snd-emu8000-synth.o
+obj-$(CONFIG_SND_SBAWE_SEQ) += snd-emu8000-synth.o

sound/pci/emu10k1/Makefile

@@ -9,15 +9,7 @@ snd-emu10k1-objs := emu10k1.o emu10k1_main.o \
 snd-emu10k1-synth-objs := emu10k1_synth.o emu10k1_callback.o emu10k1_patch.o
 snd-emu10k1x-objs := emu10k1x.o
 
-#
-# this function returns:
-#   "m" - CONFIG_SND_SEQUENCER is m
-#   <empty string> - CONFIG_SND_SEQUENCER is undefined
-#   otherwise parameter #1 value
-#
-sequencer = $(if $(subst y,,$(CONFIG_SND_SEQUENCER)),$(if $(1),m),$(if $(CONFIG_SND_SEQUENCER),$(1)))
-
 # Toplevel Module Dependency
 obj-$(CONFIG_SND_EMU10K1) += snd-emu10k1.o
-obj-$(call sequencer,$(CONFIG_SND_EMU10K1)) += snd-emu10k1-synth.o
+obj-$(CONFIG_SND_EMU10K1_SEQ) += snd-emu10k1-synth.o
 obj-$(CONFIG_SND_EMU10K1X) += snd-emu10k1x.o

sound/synth/Makefile

@@ -5,16 +5,8 @@
 
 snd-util-mem-objs := util_mem.o
 
-#
-# this function returns:
-#   "m" - CONFIG_SND_SEQUENCER is m
-#   <empty string> - CONFIG_SND_SEQUENCER is undefined
-#   otherwise parameter #1 value
-#
-sequencer = $(if $(subst y,,$(CONFIG_SND_SEQUENCER)),$(if $(1),m),$(if $(CONFIG_SND_SEQUENCER),$(1)))
-
 # Toplevel Module Dependency
 obj-$(CONFIG_SND_EMU10K1) += snd-util-mem.o
 obj-$(CONFIG_SND_TRIDENT) += snd-util-mem.o
-obj-$(call sequencer,$(CONFIG_SND_SBAWE)) += snd-util-mem.o
-obj-$(call sequencer,$(CONFIG_SND)) += emux/
+obj-$(CONFIG_SND_SBAWE_SEQ) += snd-util-mem.o
+obj-$(CONFIG_SND_SEQUENCER) += emux/

sound/synth/emux/Makefile

@@ -7,14 +7,6 @@ snd-emux-synth-objs := emux.o emux_synth.o emux_seq.o emux_nrpn.o \
 		       emux_effect.o emux_proc.o emux_hwdep.o soundfont.o \
 		       $(if $(CONFIG_SND_SEQUENCER_OSS),emux_oss.o)
 
-#
-# this function returns:
-#   "m" - CONFIG_SND_SEQUENCER is m
-#   <empty string> - CONFIG_SND_SEQUENCER is undefined
-#   otherwise parameter #1 value
-#
-sequencer = $(if $(subst y,,$(CONFIG_SND_SEQUENCER)),$(if $(1),m),$(if $(CONFIG_SND_SEQUENCER),$(1)))
-
 # Toplevel Module Dependencies
-obj-$(call sequencer,$(CONFIG_SND_SBAWE)) += snd-emux-synth.o
-obj-$(call sequencer,$(CONFIG_SND_EMU10K1)) += snd-emux-synth.o
+obj-$(CONFIG_SND_SBAWE_SEQ) += snd-emux-synth.o
+obj-$(CONFIG_SND_EMU10K1_SEQ) += snd-emux-synth.o