linux/sound/pci/hda/hda_intel.h
Mengdong Lin 98d8fc6c5d ALSA: hda - Move hda_i915.c from sound/pci/hda to sound/hda
The file is moved to hda core and renamed to hdac_i915.c, so can be used
by both legacy HDA driver and new Skylake audio driver.

- Add snd_hdac_ prefix to the public APIs.
- The i915 audio component is moved to core bus and dynamically allocated.
- A static pointer hdac_acomp is used to help bind/unbind callbacks to get
  this component, because the sound card's private_data is used by the azx
  chip pointer, which is a legacy structure. It could be removed if private
  _data changes to some core structure which can be extended to find the
  bus.
- snd_hdac_get_display_clk() is added to get the display core clock for
  HSW/BDW.
- haswell_set_bclk() is moved to hda_intel.c because it needs to write the
  controller registers EM4/EM5, and only legacy HD-A needs it for HSW/BDW.
- Move definition of HSW/BDW-specific registers EM4/EM5 to hda_register.h
  and rename them to HSW_EM4/HSW_EM5, because other HD-A controllers have
  different layout for the extended mode registers.

Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-05-20 06:16:36 +02:00

50 lines
1.5 KiB
C

/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc., 59
* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __SOUND_HDA_INTEL_H
#define __SOUND_HDA_INTEL_H
#include "hda_controller.h"
struct hda_intel {
struct azx chip;
/* for pending irqs */
struct work_struct irq_pending_work;
/* sync probing */
struct completion probe_wait;
struct work_struct probe_work;
/* card list (for power_save trigger) */
struct list_head list;
/* extra flags */
unsigned int irq_pending_warned:1;
unsigned int probe_continued:1;
/* VGA-switcheroo setup */
unsigned int use_vga_switcheroo:1;
unsigned int vga_switcheroo_registered:1;
unsigned int init_failed:1; /* delayed init failed */
/* secondary power domain for hdmi audio under vga device */
struct dev_pm_domain hdmi_pm_domain;
bool need_i915_power:1; /* the hda controller needs i915 power */
};
#endif