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path: root/sound/hda/ext/hdac_ext_controller.c
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2018-10-02ALSA: hda: Fix mismatch for register mask and value in ext controller.Keyon Jie
E.g. for snd_hdac_ext_bus_link_power_up(), we should set mask to be AZX_MLCTL_SPA(it was 0), and AZX_MLCTL_SPA as value to power up it, here correct it and several similar mismatches. Signed-off-by: Keyon Jie <yang.jie@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-06-28ALSA: hdac: ext: add wait for codec to respond after link resetRakesh Ughreja
As per HDA spec section 4.3 - Codec Discovery, the software shall wait for atleast 521usec for codec to respond after link reset. With the multi-link capability each link is turned ON/OFF individually. Link controller drives reset signal when it is turned ON. Signed-off-by: Rakesh Ughreja <rakesh.a.ughreja@intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-06-28ALSA: hdac: Remove usage of struct hdac_ext_bus and use hdac_bus insteadRakesh Ughreja
This patch removes the hdac_ext_bus structure. The legacy and enhanced HDaudio capabilities can be handled in a backward-compatible way without separate definitions. Follow-up patches in this series handle the driver definition. Signed-off-by: Rakesh Ughreja <rakesh.a.ughreja@intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-04-07ALSA: hda - add more ML register definitionsLibin Yang
This patch refines the definition of AZX_MLCTL_SPA and AZX_MLCTL_CPA and add more definitions of ML registers Signed-off-by: Libin Yang <libin.yang@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-08-09ALSA - Ext hda: remove bus_parse_capabilitiesVinod Koul
Remove the unused one as we have moved it up to hdac core. Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-08-09ALSA: convert users to core bus_parse_capabilitiesVinod Koul
Now that we have the bus parse capabilities moved to core, we need to convert users. The SKL driver and HDA extended lib needs to converted in single patch, otherwise we regress on the functionality. Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-05-13ALSA: hdac: add link pm and ref countingVinod Koul
The HDA links can be switched off when not is use, similarly command DMA can be stopped as well. This calls for a reference counting mechanism on the link by it's users to manage the link power. The DMA can be turned off when all links are off For this we add two APIs snd_hdac_ext_bus_link_get snd_hdac_ext_bus_link_put They help users to turn up/down link and manage the DMA as well Signed-off-by: Jeeja KP <jeeja.kp@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Acked-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10ALSA: hdac: add snd_hdac_ext_bus_link_power_up_allVinod Koul
We have an API for powering down all links, we need a similar one for powering up links, so add for power up as well Signed-off-by: Jayachandran B <jayachandran.b@intel.com> Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10ALSA: hdac: Increase timeout value for link power checkJayachandran B
HW recommends 180us for worst case values for link power up delay, so change the current delay value from 50 (150us) to 150 (450us) Signed-off-by: Jayachandran B <jayachandran.b@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10ALSA: hdac: Add support for hda DMA Resume capabilityJeeja KP
Skylake sports new capability of DMA resume, DRSM where we can resume the DMA. This capability is defined by presence of AZX_DRSM_CAP_ID. If this capability is present, we use this capability. So we add: snd_hdac_ext_stream_drsm_enable() - DMA resume caps snd_hdac_ext_stream_set_dpibr() - set the DMA position snd_hdac_ext_stream_set_lpib() - set the lpib Signed-off-by: Jeeja KP <jeeja.kp@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-08-21ALSA: hdac: Add snd_hdac_ext_bus_link_power_down_all()Jeeja KP
New HDA controllers like Skylake sport multiple HDA links, so we need a helper to turn off all the links in one go while suspending the device so add snd_hdac_ext_bus_link_power_down_all() API Signed-off-by: Jeeja KP <jeeja.kp@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-08-21ALSA: hdac: Fix to read the correct offset of spcap/link registerJeeja KP
SPCAP and Mutilink register offset were incorrect as offset needs to be based on capability offset. So correct the offset for read/write of spcap/link register. Signed-off-by: Jeeja KP <jeeja.kp@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-08-04ALSA: HDA: Dont check return for snd_hdac_chip_readlJeeja KP
The snd_hdac_chip_readl return can never be less than zeros, so no point in checking for the return value This fixes following static checker warnings in snd_hdac_ext_bus_parse_capabilities sound/hda/ext/hdac_ext_controller.c:47 snd_hdac_ext_bus_parse_capabilities() warn: unsigned 'offset' is never less than zero. sound/hda/ext/hdac_ext_controller.c:54 snd_hdac_ext_bus_parse_capabilities() warn: unsigned 'cur_cap' is never less than zero. Signed-off-by: Jeeja KP <jeeja.kp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-06-17ALSA: hda: add hda link cleanup routineVinod Koul
In HDA extended bus the HDA link objects are created when multilink capabilities are parsed. We need a routine which free up these link objects for a bus. So add snd_hdac_link_free_all routine Signed-off-by: Jeeja KP <jeeja.kp@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-06-11ALSA: hdac_ext: add hdac extended controllerJeeja KP
The controller needs to support the new capabilities and allow reading, parsing and initializing of these capabilities, so this patch does it Signed-off-by: Jeeja KP <jeeja.kp@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>