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alistair23-linux/sound/x86/Makefile

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ALSA: add Intel HDMI LPE audio driver for BYT/CHT-T On Baytrail and Cherrytrail, HDaudio may be fused out or disabled by the BIOS. This driver enables an alternate path to the i915 display registers and DMA. Although there is no hardware path between i915 display and LPE/SST audio clusters, this HDMI capability is referred to in the documentation as "HDMI LPE Audio" so we keep the name for consistency. There is no hardware path or control dependencies with the LPE/SST DSP functionality. The hdmi-lpe-audio driver will be probed when the i915 driver creates a child platform device. Since this driver is neither SoC nor PCI, a new x86 folder is added Additional indirections in the code will be cleaned up in the next series to aid smoother DP integration Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Jerome Anand <jerome.anand@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-24 15:57:51 -07:00
snd-hdmi-lpe-audio-objs += \
ALSA: x86: hdmi: Add audio support for BYT and CHT Hdmi audio driver based on the child platform device created by gfx driver is implemented. This audio driver is derived from legacy intel hdmi audio driver. The interfaces for interaction between gfx and audio are updated and the driver implementation updated to derive interrupts in its own address space based on irq chip framework The changes to calculate sub-period positions was triggered by David Henningsson <david.henningsson@canonical.com> and is accomodated in this patch Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Jerome Anand <jerome.anand@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-24 15:57:52 -07:00
intel_hdmi_audio.o \
ALSA: x86: Flatten two abstraction layers This is the final stage for a big clean-up series. Here we flatten the two layers into one. Formerly, the implementation was split to HDMI "shell" that talks with the platform device, and HDMI audio part that communicates via caps and other event handlers. All these would be good if there were multiple instantiations or if there were data protection. But neither are true in our case. That said, it'll be easier to have a flat driver structure in the end. In this patch, the former struct hdmi_lpe_audio_ctx is forged into the existing struct snd_intelhad. The latter has already a few members that are basically the copy from the former. Only a few new members for the lowlevel I/O are added by this change. Then, the had_get_caps() and had_set_caps() are simply replaced with the direct calls to copy the data in the struct fields. Also, the had_event_handler() calls are replaced with the direct call for each event as well. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-31 05:52:22 -07:00
intel_hdmi_audio_if.o
ALSA: add Intel HDMI LPE audio driver for BYT/CHT-T On Baytrail and Cherrytrail, HDaudio may be fused out or disabled by the BIOS. This driver enables an alternate path to the i915 display registers and DMA. Although there is no hardware path between i915 display and LPE/SST audio clusters, this HDMI capability is referred to in the documentation as "HDMI LPE Audio" so we keep the name for consistency. There is no hardware path or control dependencies with the LPE/SST DSP functionality. The hdmi-lpe-audio driver will be probed when the i915 driver creates a child platform device. Since this driver is neither SoC nor PCI, a new x86 folder is added Additional indirections in the code will be cleaned up in the next series to aid smoother DP integration Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Jerome Anand <jerome.anand@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-01-24 15:57:51 -07:00
obj-$(CONFIG_HDMI_LPE_AUDIO) += snd-hdmi-lpe-audio.o