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