Rev 6082 | Details | Compare with Previous | Last modification | View Log | RSS feed
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| 6082 | serge | 1 | /* |
| 2 | * Copyright © 2014 Intel Corporation |
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| 3 | * |
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| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 5 | * copy of this software and associated documentation files (the "Software"), |
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| 6 | * to deal in the Software without restriction, including without limitation |
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| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 9 | * Software is furnished to do so, subject to the following conditions: |
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| 10 | * |
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| 11 | * The above copyright notice and this permission notice (including the next |
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| 12 | * paragraph) shall be included in all copies or substantial portions of the |
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| 13 | * Software. |
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| 14 | * |
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| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
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| 21 | * IN THE SOFTWARE. |
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| 22 | */ |
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| 23 | |||
| 24 | #ifndef _I915_COMPONENT_H_ |
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| 25 | #define _I915_COMPONENT_H_ |
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| 26 | |||
| 27 | /* MAX_PORT is the number of port |
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| 28 | * It must be sync with I915_MAX_PORTS defined i915_drv.h |
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| 29 | * 5 should be enough as only HSW, BDW, SKL need such fix. |
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| 30 | */ |
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| 31 | #define MAX_PORTS 5 |
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| 32 | |||
| 33 | /** |
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| 6936 | serge | 34 | * struct i915_audio_component_ops - Ops implemented by i915 driver, called by hda driver |
| 6082 | serge | 35 | */ |
| 36 | struct i915_audio_component_ops { |
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| 6936 | serge | 37 | /** |
| 38 | * @owner: i915 module |
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| 39 | */ |
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| 6082 | serge | 40 | struct module *owner; |
| 6936 | serge | 41 | /** |
| 42 | * @get_power: get the POWER_DOMAIN_AUDIO power well |
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| 43 | * |
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| 44 | * Request the power well to be turned on. |
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| 45 | */ |
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| 6082 | serge | 46 | void (*get_power)(struct device *); |
| 6936 | serge | 47 | /** |
| 48 | * @put_power: put the POWER_DOMAIN_AUDIO power well |
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| 49 | * |
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| 50 | * Allow the power well to be turned off. |
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| 51 | */ |
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| 6082 | serge | 52 | void (*put_power)(struct device *); |
| 6936 | serge | 53 | /** |
| 54 | * @codec_wake_override: Enable/disable codec wake signal |
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| 55 | */ |
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| 6082 | serge | 56 | void (*codec_wake_override)(struct device *, bool enable); |
| 6936 | serge | 57 | /** |
| 58 | * @get_cdclk_freq: Get the Core Display Clock in kHz |
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| 59 | */ |
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| 6082 | serge | 60 | int (*get_cdclk_freq)(struct device *); |
| 6936 | serge | 61 | /** |
| 62 | * @sync_audio_rate: set n/cts based on the sample rate |
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| 63 | * |
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| 64 | * Called from audio driver. After audio driver sets the |
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| 65 | * sample rate, it will call this function to set n/cts |
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| 66 | */ |
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| 6082 | serge | 67 | int (*sync_audio_rate)(struct device *, int port, int rate); |
| 6936 | serge | 68 | /** |
| 69 | * @get_eld: fill the audio state and ELD bytes for the given port |
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| 70 | * |
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| 71 | * Called from audio driver to get the HDMI/DP audio state of the given |
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| 72 | * digital port, and also fetch ELD bytes to the given pointer. |
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| 73 | * |
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| 74 | * It returns the byte size of the original ELD (not the actually |
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| 75 | * copied size), zero for an invalid ELD, or a negative error code. |
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| 76 | * |
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| 77 | * Note that the returned size may be over @max_bytes. Then it |
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| 78 | * implies that only a part of ELD has been copied to the buffer. |
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| 79 | */ |
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| 80 | int (*get_eld)(struct device *, int port, bool *enabled, |
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| 81 | unsigned char *buf, int max_bytes); |
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| 6082 | serge | 82 | }; |
| 83 | |||
| 6936 | serge | 84 | /** |
| 85 | * struct i915_audio_component_audio_ops - Ops implemented by hda driver, called by i915 driver |
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| 86 | */ |
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| 6082 | serge | 87 | struct i915_audio_component_audio_ops { |
| 6936 | serge | 88 | /** |
| 89 | * @audio_ptr: Pointer to be used in call to pin_eld_notify |
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| 90 | */ |
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| 6082 | serge | 91 | void *audio_ptr; |
| 92 | /** |
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| 6936 | serge | 93 | * @pin_eld_notify: Notify the HDA driver that pin sense and/or ELD information has changed |
| 94 | * |
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| 95 | * Called when the i915 driver has set up audio pipeline or has just |
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| 96 | * begun to tear it down. This allows the HDA driver to update its |
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| 97 | * status accordingly (even when the HDA controller is in power save |
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| 98 | * mode). |
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| 6082 | serge | 99 | */ |
| 100 | void (*pin_eld_notify)(void *audio_ptr, int port); |
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| 101 | }; |
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| 102 | |||
| 103 | /** |
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| 6936 | serge | 104 | * struct i915_audio_component - Used for direct communication between i915 and hda drivers |
| 6082 | serge | 105 | */ |
| 106 | struct i915_audio_component { |
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| 6936 | serge | 107 | /** |
| 108 | * @dev: i915 device, used as parameter for ops |
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| 109 | */ |
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| 6082 | serge | 110 | struct device *dev; |
| 6936 | serge | 111 | /** |
| 112 | * @aud_sample_rate: the array of audio sample rate per port |
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| 113 | */ |
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| 6082 | serge | 114 | int aud_sample_rate[MAX_PORTS]; |
| 6936 | serge | 115 | /** |
| 116 | * @ops: Ops implemented by i915 driver, called by hda driver |
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| 117 | */ |
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| 6082 | serge | 118 | const struct i915_audio_component_ops *ops; |
| 6936 | serge | 119 | /** |
| 120 | * @audio_ops: Ops implemented by hda driver, called by i915 driver |
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| 121 | */ |
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| 6082 | serge | 122 | const struct i915_audio_component_audio_ops *audio_ops; |
| 123 | }; |
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| 124 | |||
| 125 | #endif /* _I915_COMPONENT_H_ */ |