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