1 /* $NetBSD: i915_component.h,v 1.2 2018/08/27 04:58:38 riastradh Exp $ */ 2 3 /* 4 * Copyright © 2014 Intel Corporation 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the next 14 * paragraph) shall be included in all copies or substantial portions of the 15 * Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 23 * IN THE SOFTWARE. 24 */ 25 26 #ifndef _I915_COMPONENT_H_ 27 #define _I915_COMPONENT_H_ 28 29 /* MAX_PORT is the number of port 30 * It must be sync with I915_MAX_PORTS defined i915_drv.h 31 * 5 should be enough as only HSW, BDW, SKL need such fix. 32 */ 33 #define MAX_PORTS 5 34 35 /** 36 * struct i915_audio_component_ops - callbacks defined in gfx driver 37 * @owner: the module owner 38 * @get_power: get the POWER_DOMAIN_AUDIO power well 39 * @put_power: put the POWER_DOMAIN_AUDIO power well 40 * @codec_wake_override: Enable/Disable generating the codec wake signal 41 * @get_cdclk_freq: get the Core Display Clock in KHz 42 * @sync_audio_rate: set n/cts based on the sample rate 43 */ 44 struct i915_audio_component_ops { 45 struct module *owner; 46 void (*get_power)(struct device *); 47 void (*put_power)(struct device *); 48 void (*codec_wake_override)(struct device *, bool enable); 49 int (*get_cdclk_freq)(struct device *); 50 int (*sync_audio_rate)(struct device *, int port, int rate); 51 }; 52 53 struct i915_audio_component_audio_ops { 54 void *audio_ptr; 55 /** 56 * Call from i915 driver, notifying the HDA driver that 57 * pin sense and/or ELD information has changed. 58 * @audio_ptr: HDA driver object 59 * @port: Which port has changed (PORTA / PORTB / PORTC etc) 60 */ 61 void (*pin_eld_notify)(void *audio_ptr, int port); 62 }; 63 64 /** 65 * struct i915_audio_component - used for audio video interaction 66 * @dev: the device from gfx driver 67 * @aud_sample_rate: the array of audio sample rate per port 68 * @ops: callback for audio driver calling 69 * @audio_ops: Call from i915 driver 70 */ 71 struct i915_audio_component { 72 struct device *dev; 73 int aud_sample_rate[MAX_PORTS]; 74 75 const struct i915_audio_component_ops *ops; 76 77 const struct i915_audio_component_audio_ops *audio_ops; 78 }; 79 80 #endif /* _I915_COMPONENT_H_ */ 81