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58fddc28 ID |
1 | /* |
2 | * Copyright © 2014 Intel Corporation | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice (including the next | |
12 | * paragraph) shall be included in all copies or substantial portions of the | |
13 | * Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS | |
21 | * IN THE SOFTWARE. | |
22 | */ | |
23 | ||
24 | #ifndef _I915_COMPONENT_H_ | |
25 | #define _I915_COMPONENT_H_ | |
26 | ||
7e8275c2 LY |
27 | /* MAX_PORT is the number of port |
28 | * It must be sync with I915_MAX_PORTS defined i915_drv.h | |
29 | * 5 should be enough as only HSW, BDW, SKL need such fix. | |
30 | */ | |
31 | #define MAX_PORTS 5 | |
32 | ||
3f4c90bd | 33 | /** |
be15aad6 | 34 | * struct i915_audio_component_ops - Ops implemented by i915 driver, called by hda driver |
3f4c90bd LY |
35 | */ |
36 | struct i915_audio_component_ops { | |
be15aad6 DH |
37 | /** |
38 | * @owner: i915 module | |
39 | */ | |
3f4c90bd | 40 | struct module *owner; |
be15aad6 DH |
41 | /** |
42 | * @get_power: get the POWER_DOMAIN_AUDIO power well | |
43 | * | |
44 | * Request the power well to be turned on. | |
45 | */ | |
3f4c90bd | 46 | void (*get_power)(struct device *); |
be15aad6 DH |
47 | /** |
48 | * @put_power: put the POWER_DOMAIN_AUDIO power well | |
49 | * | |
50 | * Allow the power well to be turned off. | |
51 | */ | |
3f4c90bd | 52 | void (*put_power)(struct device *); |
be15aad6 DH |
53 | /** |
54 | * @codec_wake_override: Enable/disable codec wake signal | |
55 | */ | |
3f4c90bd | 56 | void (*codec_wake_override)(struct device *, bool enable); |
be15aad6 DH |
57 | /** |
58 | * @get_cdclk_freq: Get the Core Display Clock in kHz | |
59 | */ | |
3f4c90bd | 60 | int (*get_cdclk_freq)(struct device *); |
be15aad6 DH |
61 | /** |
62 | * @sync_audio_rate: set n/cts based on the sample rate | |
63 | * | |
64 | * Called from audio driver. After audio driver sets the | |
65 | * sample rate, it will call this function to set n/cts | |
66 | */ | |
f9318941 | 67 | int (*sync_audio_rate)(struct device *, int port, int pipe, int rate); |
cae666ce TI |
68 | /** |
69 | * @get_eld: fill the audio state and ELD bytes for the given port | |
70 | * | |
71 | * Called from audio driver to get the HDMI/DP audio state of the given | |
72 | * digital port, and also fetch ELD bytes to the given pointer. | |
73 | * | |
74 | * It returns the byte size of the original ELD (not the actually | |
75 | * copied size), zero for an invalid ELD, or a negative error code. | |
76 | * | |
77 | * Note that the returned size may be over @max_bytes. Then it | |
78 | * implies that only a part of ELD has been copied to the buffer. | |
79 | */ | |
f9318941 | 80 | int (*get_eld)(struct device *, int port, int pipe, bool *enabled, |
cae666ce | 81 | unsigned char *buf, int max_bytes); |
3f4c90bd LY |
82 | }; |
83 | ||
be15aad6 DH |
84 | /** |
85 | * struct i915_audio_component_audio_ops - Ops implemented by hda driver, called by i915 driver | |
86 | */ | |
3f4c90bd | 87 | struct i915_audio_component_audio_ops { |
be15aad6 DH |
88 | /** |
89 | * @audio_ptr: Pointer to be used in call to pin_eld_notify | |
90 | */ | |
3f4c90bd | 91 | void *audio_ptr; |
7e8275c2 | 92 | /** |
be15aad6 DH |
93 | * @pin_eld_notify: Notify the HDA driver that pin sense and/or ELD information has changed |
94 | * | |
95 | * Called when the i915 driver has set up audio pipeline or has just | |
96 | * begun to tear it down. This allows the HDA driver to update its | |
97 | * status accordingly (even when the HDA controller is in power save | |
98 | * mode). | |
7e8275c2 | 99 | */ |
f9318941 | 100 | void (*pin_eld_notify)(void *audio_ptr, int port, int pipe); |
3f4c90bd LY |
101 | }; |
102 | ||
103 | /** | |
be15aad6 | 104 | * struct i915_audio_component - Used for direct communication between i915 and hda drivers |
3f4c90bd LY |
105 | */ |
106 | struct i915_audio_component { | |
be15aad6 DH |
107 | /** |
108 | * @dev: i915 device, used as parameter for ops | |
109 | */ | |
3f4c90bd | 110 | struct device *dev; |
be15aad6 DH |
111 | /** |
112 | * @aud_sample_rate: the array of audio sample rate per port | |
113 | */ | |
7e8275c2 | 114 | int aud_sample_rate[MAX_PORTS]; |
be15aad6 DH |
115 | /** |
116 | * @ops: Ops implemented by i915 driver, called by hda driver | |
117 | */ | |
3f4c90bd | 118 | const struct i915_audio_component_ops *ops; |
be15aad6 DH |
119 | /** |
120 | * @audio_ops: Ops implemented by hda driver, called by i915 driver | |
121 | */ | |
3f4c90bd | 122 | const struct i915_audio_component_audio_ops *audio_ops; |
58fddc28 ID |
123 | }; |
124 | ||
125 | #endif /* _I915_COMPONENT_H_ */ |