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 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 33 /** 34 * struct i915_audio_component_ops - callbacks defined in gfx driver 35 * @owner: the module owner 36 * @get_power: get the POWER_DOMAIN_AUDIO power well 37 * @put_power: put the POWER_DOMAIN_AUDIO power well 38 * @codec_wake_override: Enable/Disable generating the codec wake signal 39 * @get_cdclk_freq: get the Core Display Clock in KHz 40 * @sync_audio_rate: set n/cts based on the sample rate 41 */ 42 struct i915_audio_component_ops { 43 struct module *owner; 44 void (*get_power)(struct device *); 45 void (*put_power)(struct device *); 46 void (*codec_wake_override)(struct device *, bool enable); 47 int (*get_cdclk_freq)(struct device *); 48 int (*sync_audio_rate)(struct device *, int port, int rate); 49 }; 50 51 struct i915_audio_component_audio_ops { 52 void *audio_ptr; 53 /** 54 * Call from i915 driver, notifying the HDA driver that 55 * pin sense and/or ELD information has changed. 56 * @audio_ptr: HDA driver object 57 * @port: Which port has changed (PORTA / PORTB / PORTC etc) 58 */ 59 void (*pin_eld_notify)(void *audio_ptr, int port); 60 }; 61 62 /** 63 * struct i915_audio_component - used for audio video interaction 64 * @dev: the device from gfx driver 65 * @aud_sample_rate: the array of audio sample rate per port 66 * @ops: callback for audio driver calling 67 * @audio_ops: Call from i915 driver 68 */ 69 struct i915_audio_component { 70 struct device *dev; 71 int aud_sample_rate[MAX_PORTS]; 72 73 const struct i915_audio_component_ops *ops; 74 75 const struct i915_audio_component_audio_ops *audio_ops; 76 }; 77 78 #endif /* _I915_COMPONENT_H_ */ 79