genode/repos/dde_bsd/lib/mk/dde_bsd_audio.inc
Josef Söntgen 47990f37d7 dde_bsd: update audio driver to OpenBSD 5.9
In addition to updating the contrib sources the driver now uses the
new Component API and will report the internal mixer state.

Reporting of the mixer state is enabled by adding the 'report_mixer'
attribute to the drivers configuration and setting its value to 'yes'.

The following snippets illustrates the format of the report:

!<mixer_state>
!  <mixer field="inputs.beep" value="108"/>
!  <mixer field="outputs.hp_sense" value="plugged"/>
!  <mixer field="outputs.master" value="128,128"/>
!  <mixer field="outputs.mic_sense" value="unplugged"/>
!  <mixer field="outputs.spkr_muters" value="hp,mic"/>
!</mixer_state>

The mixer state may expose other mixer fields as well, depending on the
used sound card. The naming scheme of the attributes intentionally
matches the naming scheme of OpenBSD's mixerctl(1) program.

Each 'mixer' node can be used to configure the audio driver by using it
in its configuration, e.g.:

!<config report_mixer="yes">
!  <mixer field="outputs.master" value="255,255"/>
!</config>

This configuration will set the output volume to the highest possible
value. Although it is now also possible to update the configuration
at run-time it should not be done while the driver is currently playing
or recording because it may provoke the generation of artefacts.

Fixes #1973.
2016-05-23 15:52:51 +02:00

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1.2 KiB
Makefile

LIB_DIR = $(REP_DIR)/src/lib/audio
LIB_INC_DIR = $(LIB_DIR)/include
AUDIO_CONTRIB_DIR := $(call select_from_ports,dde_bsd)/src/lib/audio
#
# Set include paths up before adding the dde_bsd_audio_include library
# because it will use INC_DIR += and must be at the end
#
INC_DIR += $(LIB_DIR)
INC_DIR += $(LIB_INC_DIR)
INC_DIR += $(AUDIO_CONTRIB_DIR)
LIBS += dde_bsd_audio_include
SRC_CC += bus.cc dummies.cc driver.cc irq.cc mem.cc misc.cc scheduler.cc timer.cc
SRC_C += bsd_emul.c
SRC_S += setjmp.S
CC_OPT += -Wno-unused-but-set-variable
# disable builtins
CC_OPT += -fno-builtin-printf -fno-builtin-snprintf -fno-builtin-vsnprintf \
-fno-builtin-malloc -fno-builtin-free -fno-builtin-log -fno-builtin-log2
CC_OPT += -D_KERNEL
# disable false warning in audio.c:786
CC_C_OPT += -Wno-maybe-uninitialized
# enable when debugging
# CC_OPT += -DAUDIO_DEBUG
# CC_OPT += -DAZALIA_DEBUG
# CC_OPT += -DDIAGNOSTIC
# audio interface
SRC_C += dev/audio.c
# AC97 codec
SRC_C += dev/ic/ac97.c
# HDA driver
SRC_C += dev/pci/azalia.c dev/pci/azalia_codec.c
# ES1370
SRC_C += dev/pci/eap.c
SRC_C += dev/mulaw.c
vpath %.c $(AUDIO_CONTRIB_DIR)
vpath %.c $(LIB_DIR)
vpath %.cc $(LIB_DIR)
# vi: set ft=make :