linux/include/drm/intel_lpe_audio.h
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   1/*
   2 * Copyright © 2016 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 _INTEL_LPE_AUDIO_H_
  25#define _INTEL_LPE_AUDIO_H_
  26
  27#include <linux/types.h>
  28#include <linux/spinlock_types.h>
  29
  30struct platform_device;
  31
  32#define HDMI_MAX_ELD_BYTES      128
  33
  34struct intel_hdmi_lpe_audio_port_pdata {
  35        u8 eld[HDMI_MAX_ELD_BYTES];
  36        int port;
  37        int pipe;
  38        int ls_clock;
  39        bool dp_output;
  40};
  41
  42struct intel_hdmi_lpe_audio_pdata {
  43        struct intel_hdmi_lpe_audio_port_pdata port[3]; /* for ports B,C,D */
  44        int num_ports;
  45        int num_pipes;
  46
  47        void (*notify_audio_lpe)(struct platform_device *pdev, int port); /* port: 0==B,1==C,2==D */
  48        spinlock_t lpe_audio_slock;
  49};
  50
  51#endif /* _I915_LPE_AUDIO_H_ */
  52