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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 | |
7e8275c2 | 29 | */ |
841b5ed7 | 30 | #define MAX_PORTS 6 |
7e8275c2 | 31 | |
3f4c90bd | 32 | /** |
be15aad6 | 33 | * struct i915_audio_component_ops - Ops implemented by i915 driver, called by hda driver |
3f4c90bd LY |
34 | */ |
35 | struct i915_audio_component_ops { | |
be15aad6 DH |
36 | /** |
37 | * @owner: i915 module | |
38 | */ | |
3f4c90bd | 39 | struct module *owner; |
be15aad6 DH |
40 | /** |
41 | * @get_power: get the POWER_DOMAIN_AUDIO power well | |
42 | * | |
43 | * Request the power well to be turned on. | |
44 | */ | |
3f4c90bd | 45 | void (*get_power)(struct device *); |
be15aad6 DH |
46 | /** |
47 | * @put_power: put the POWER_DOMAIN_AUDIO power well | |
48 | * | |
49 | * Allow the power well to be turned off. | |
50 | */ | |
3f4c90bd | 51 | void (*put_power)(struct device *); |
be15aad6 DH |
52 | /** |
53 | * @codec_wake_override: Enable/disable codec wake signal | |
54 | */ | |
3f4c90bd | 55 | void (*codec_wake_override)(struct device *, bool enable); |
be15aad6 DH |
56 | /** |
57 | * @get_cdclk_freq: Get the Core Display Clock in kHz | |
58 | */ | |
3f4c90bd | 59 | int (*get_cdclk_freq)(struct device *); |
be15aad6 DH |
60 | /** |
61 | * @sync_audio_rate: set n/cts based on the sample rate | |
62 | * | |
63 | * Called from audio driver. After audio driver sets the | |
64 | * sample rate, it will call this function to set n/cts | |
65 | */ | |
f9318941 | 66 | int (*sync_audio_rate)(struct device *, int port, int pipe, int rate); |
cae666ce TI |
67 | /** |
68 | * @get_eld: fill the audio state and ELD bytes for the given port | |
69 | * | |
70 | * Called from audio driver to get the HDMI/DP audio state of the given | |
71 | * digital port, and also fetch ELD bytes to the given pointer. | |
72 | * | |
73 | * It returns the byte size of the original ELD (not the actually | |
74 | * copied size), zero for an invalid ELD, or a negative error code. | |
75 | * | |
76 | * Note that the returned size may be over @max_bytes. Then it | |
77 | * implies that only a part of ELD has been copied to the buffer. | |
78 | */ | |
f9318941 | 79 | int (*get_eld)(struct device *, int port, int pipe, bool *enabled, |
cae666ce | 80 | unsigned char *buf, int max_bytes); |
3f4c90bd LY |
81 | }; |
82 | ||
be15aad6 DH |
83 | /** |
84 | * struct i915_audio_component_audio_ops - Ops implemented by hda driver, called by i915 driver | |
85 | */ | |
3f4c90bd | 86 | struct i915_audio_component_audio_ops { |
be15aad6 DH |
87 | /** |
88 | * @audio_ptr: Pointer to be used in call to pin_eld_notify | |
89 | */ | |
3f4c90bd | 90 | void *audio_ptr; |
7e8275c2 | 91 | /** |
be15aad6 DH |
92 | * @pin_eld_notify: Notify the HDA driver that pin sense and/or ELD information has changed |
93 | * | |
94 | * Called when the i915 driver has set up audio pipeline or has just | |
95 | * begun to tear it down. This allows the HDA driver to update its | |
96 | * status accordingly (even when the HDA controller is in power save | |
97 | * mode). | |
7e8275c2 | 98 | */ |
f9318941 | 99 | void (*pin_eld_notify)(void *audio_ptr, int port, int pipe); |
3f4c90bd LY |
100 | }; |
101 | ||
102 | /** | |
be15aad6 | 103 | * struct i915_audio_component - Used for direct communication between i915 and hda drivers |
3f4c90bd LY |
104 | */ |
105 | struct i915_audio_component { | |
be15aad6 DH |
106 | /** |
107 | * @dev: i915 device, used as parameter for ops | |
108 | */ | |
3f4c90bd | 109 | struct device *dev; |
be15aad6 DH |
110 | /** |
111 | * @aud_sample_rate: the array of audio sample rate per port | |
112 | */ | |
7e8275c2 | 113 | int aud_sample_rate[MAX_PORTS]; |
be15aad6 DH |
114 | /** |
115 | * @ops: Ops implemented by i915 driver, called by hda driver | |
116 | */ | |
3f4c90bd | 117 | const struct i915_audio_component_ops *ops; |
be15aad6 DH |
118 | /** |
119 | * @audio_ops: Ops implemented by hda driver, called by i915 driver | |
120 | */ | |
3f4c90bd | 121 | const struct i915_audio_component_audio_ops *audio_ops; |
58fddc28 ID |
122 | }; |
123 | ||
124 | #endif /* _I915_COMPONENT_H_ */ |