79 lines
2.8 KiB
C
79 lines
2.8 KiB
C
/*
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* Copyright © 2014 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#ifndef _I915_COMPONENT_H_
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#define _I915_COMPONENT_H_
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/* MAX_PORT is the number of port
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* It must be sync with I915_MAX_PORTS defined i915_drv.h
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* 5 should be enough as only HSW, BDW, SKL need such fix.
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*/
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#define MAX_PORTS 5
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/**
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* struct i915_audio_component_ops - callbacks defined in gfx driver
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* @owner: the module owner
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* @get_power: get the POWER_DOMAIN_AUDIO power well
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* @put_power: put the POWER_DOMAIN_AUDIO power well
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* @codec_wake_override: Enable/Disable generating the codec wake signal
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* @get_cdclk_freq: get the Core Display Clock in KHz
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* @sync_audio_rate: set n/cts based on the sample rate
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*/
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struct i915_audio_component_ops {
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struct module *owner;
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void (*get_power)(struct device *);
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void (*put_power)(struct device *);
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void (*codec_wake_override)(struct device *, bool enable);
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int (*get_cdclk_freq)(struct device *);
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int (*sync_audio_rate)(struct device *, int port, int rate);
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};
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struct i915_audio_component_audio_ops {
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void *audio_ptr;
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/**
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* Call from i915 driver, notifying the HDA driver that
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* pin sense and/or ELD information has changed.
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* @audio_ptr: HDA driver object
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* @port: Which port has changed (PORTA / PORTB / PORTC etc)
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*/
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void (*pin_eld_notify)(void *audio_ptr, int port);
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};
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/**
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* struct i915_audio_component - used for audio video interaction
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* @dev: the device from gfx driver
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* @aud_sample_rate: the array of audio sample rate per port
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* @ops: callback for audio driver calling
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* @audio_ops: Call from i915 driver
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*/
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struct i915_audio_component {
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struct device *dev;
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int aud_sample_rate[MAX_PORTS];
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const struct i915_audio_component_ops *ops;
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const struct i915_audio_component_audio_ops *audio_ops;
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};
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#endif /* _I915_COMPONENT_H_ */
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