xref: /openbmc/linux/include/drm/i915_component.h (revision 3f4c90bd)
158fddc28SImre Deak /*
258fddc28SImre Deak  * Copyright © 2014 Intel Corporation
358fddc28SImre Deak  *
458fddc28SImre Deak  * Permission is hereby granted, free of charge, to any person obtaining a
558fddc28SImre Deak  * copy of this software and associated documentation files (the "Software"),
658fddc28SImre Deak  * to deal in the Software without restriction, including without limitation
758fddc28SImre Deak  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
858fddc28SImre Deak  * and/or sell copies of the Software, and to permit persons to whom the
958fddc28SImre Deak  * Software is furnished to do so, subject to the following conditions:
1058fddc28SImre Deak  *
1158fddc28SImre Deak  * The above copyright notice and this permission notice (including the next
1258fddc28SImre Deak  * paragraph) shall be included in all copies or substantial portions of the
1358fddc28SImre Deak  * Software.
1458fddc28SImre Deak  *
1558fddc28SImre Deak  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
1658fddc28SImre Deak  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
1758fddc28SImre Deak  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
1858fddc28SImre Deak  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
1958fddc28SImre Deak  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
2058fddc28SImre Deak  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
2158fddc28SImre Deak  * IN THE SOFTWARE.
2258fddc28SImre Deak  */
2358fddc28SImre Deak 
2458fddc28SImre Deak #ifndef _I915_COMPONENT_H_
2558fddc28SImre Deak #define _I915_COMPONENT_H_
2658fddc28SImre Deak 
277e8275c2SLibin Yang /* MAX_PORT is the number of port
287e8275c2SLibin Yang  * It must be sync with I915_MAX_PORTS defined i915_drv.h
297e8275c2SLibin Yang  * 5 should be enough as only HSW, BDW, SKL need such fix.
307e8275c2SLibin Yang  */
317e8275c2SLibin Yang #define MAX_PORTS 5
327e8275c2SLibin Yang 
337e8275c2SLibin Yang /**
343f4c90bdSLibin Yang  * struct i915_audio_component_ops - callbacks defined in gfx driver
353f4c90bdSLibin Yang  * @owner: the module owner
363f4c90bdSLibin Yang  * @get_power: get the POWER_DOMAIN_AUDIO power well
373f4c90bdSLibin Yang  * @put_power: put the POWER_DOMAIN_AUDIO power well
383f4c90bdSLibin Yang  * @codec_wake_override: Enable/Disable generating the codec wake signal
393f4c90bdSLibin Yang  * @get_cdclk_freq: get the Core Display Clock in KHz
403f4c90bdSLibin Yang  * @sync_audio_rate: set n/cts based on the sample rate
417e8275c2SLibin Yang  */
423f4c90bdSLibin Yang struct i915_audio_component_ops {
4358fddc28SImre Deak 	struct module *owner;
4458fddc28SImre Deak 	void (*get_power)(struct device *);
4558fddc28SImre Deak 	void (*put_power)(struct device *);
46632f3ab9SLu, Han 	void (*codec_wake_override)(struct device *, bool enable);
4758fddc28SImre Deak 	int (*get_cdclk_freq)(struct device *);
485334240cSLibin Yang 	int (*sync_audio_rate)(struct device *, int port, int rate);
493f4c90bdSLibin Yang };
502a8ceedfSDavid Henningsson 
513f4c90bdSLibin Yang struct i915_audio_component_audio_ops {
522a8ceedfSDavid Henningsson 	void *audio_ptr;
532a8ceedfSDavid Henningsson 	/**
542a8ceedfSDavid Henningsson 	 * Call from i915 driver, notifying the HDA driver that
552a8ceedfSDavid Henningsson 	 * pin sense and/or ELD information has changed.
562a8ceedfSDavid Henningsson 	 * @audio_ptr:		HDA driver object
572a8ceedfSDavid Henningsson 	 * @port:	Which port has changed (PORTA / PORTB / PORTC etc)
582a8ceedfSDavid Henningsson 	 */
59f0675d4aSDavid Henningsson 	void (*pin_eld_notify)(void *audio_ptr, int port);
603f4c90bdSLibin Yang };
613f4c90bdSLibin Yang 
623f4c90bdSLibin Yang /**
633f4c90bdSLibin Yang  * struct i915_audio_component - used for audio video interaction
643f4c90bdSLibin Yang  * @dev: the device from gfx driver
653f4c90bdSLibin Yang  * @aud_sample_rate: the array of audio sample rate per port
663f4c90bdSLibin Yang  * @ops: callback for audio driver calling
673f4c90bdSLibin Yang  * @audio_ops: Call from i915 driver
683f4c90bdSLibin Yang  */
693f4c90bdSLibin Yang struct i915_audio_component {
703f4c90bdSLibin Yang 	struct device *dev;
713f4c90bdSLibin Yang 	int aud_sample_rate[MAX_PORTS];
723f4c90bdSLibin Yang 
733f4c90bdSLibin Yang 	const struct i915_audio_component_ops *ops;
743f4c90bdSLibin Yang 
753f4c90bdSLibin Yang 	const struct i915_audio_component_audio_ops *audio_ops;
7658fddc28SImre Deak };
7758fddc28SImre Deak 
7858fddc28SImre Deak #endif /* _I915_COMPONENT_H_ */
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