include/drm/intel/intel_lpe_audio.h

   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
  30 struct platform_device;
  31
  32 #define HDMI_MAX_ELD_BYTES      128
  33
  34 struct 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
  42 struct 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_ */