126 lines
4.1 KiB
C
126 lines
4.1 KiB
C
/*
|
|
* 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 - Ops implemented by i915 driver, called by hda driver
|
|
*/
|
|
struct i915_audio_component_ops {
|
|
/**
|
|
* @owner: i915 module
|
|
*/
|
|
struct module *owner;
|
|
/**
|
|
* @get_power: get the POWER_DOMAIN_AUDIO power well
|
|
*
|
|
* Request the power well to be turned on.
|
|
*/
|
|
void (*get_power)(struct device *);
|
|
/**
|
|
* @put_power: put the POWER_DOMAIN_AUDIO power well
|
|
*
|
|
* Allow the power well to be turned off.
|
|
*/
|
|
void (*put_power)(struct device *);
|
|
/**
|
|
* @codec_wake_override: Enable/disable codec wake signal
|
|
*/
|
|
void (*codec_wake_override)(struct device *, bool enable);
|
|
/**
|
|
* @get_cdclk_freq: Get the Core Display Clock in kHz
|
|
*/
|
|
int (*get_cdclk_freq)(struct device *);
|
|
/**
|
|
* @sync_audio_rate: set n/cts based on the sample rate
|
|
*
|
|
* Called from audio driver. After audio driver sets the
|
|
* sample rate, it will call this function to set n/cts
|
|
*/
|
|
int (*sync_audio_rate)(struct device *, int port, int rate);
|
|
/**
|
|
* @get_eld: fill the audio state and ELD bytes for the given port
|
|
*
|
|
* Called from audio driver to get the HDMI/DP audio state of the given
|
|
* digital port, and also fetch ELD bytes to the given pointer.
|
|
*
|
|
* It returns the byte size of the original ELD (not the actually
|
|
* copied size), zero for an invalid ELD, or a negative error code.
|
|
*
|
|
* Note that the returned size may be over @max_bytes. Then it
|
|
* implies that only a part of ELD has been copied to the buffer.
|
|
*/
|
|
int (*get_eld)(struct device *, int port, bool *enabled,
|
|
unsigned char *buf, int max_bytes);
|
|
};
|
|
|
|
/**
|
|
* struct i915_audio_component_audio_ops - Ops implemented by hda driver, called by i915 driver
|
|
*/
|
|
struct i915_audio_component_audio_ops {
|
|
/**
|
|
* @audio_ptr: Pointer to be used in call to pin_eld_notify
|
|
*/
|
|
void *audio_ptr;
|
|
/**
|
|
* @pin_eld_notify: Notify the HDA driver that pin sense and/or ELD information has changed
|
|
*
|
|
* Called when the i915 driver has set up audio pipeline or has just
|
|
* begun to tear it down. This allows the HDA driver to update its
|
|
* status accordingly (even when the HDA controller is in power save
|
|
* mode).
|
|
*/
|
|
void (*pin_eld_notify)(void *audio_ptr, int port);
|
|
};
|
|
|
|
/**
|
|
* struct i915_audio_component - Used for direct communication between i915 and hda drivers
|
|
*/
|
|
struct i915_audio_component {
|
|
/**
|
|
* @dev: i915 device, used as parameter for ops
|
|
*/
|
|
struct device *dev;
|
|
/**
|
|
* @aud_sample_rate: the array of audio sample rate per port
|
|
*/
|
|
int aud_sample_rate[MAX_PORTS];
|
|
/**
|
|
* @ops: Ops implemented by i915 driver, called by hda driver
|
|
*/
|
|
const struct i915_audio_component_ops *ops;
|
|
/**
|
|
* @audio_ops: Ops implemented by hda driver, called by i915 driver
|
|
*/
|
|
const struct i915_audio_component_audio_ops *audio_ops;
|
|
};
|
|
|
|
#endif /* _I915_COMPONENT_H_ */
|