drivers/gpu/drm/radeon/radeon_audio.h

   1 /*
   2  * Copyright 2014 Advanced Micro Devices, Inc.
   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 shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Authors: Slava Grigorev <slava.grigorev@amd.com>
  23  */
  24
  25 #ifndef __RADEON_AUDIO_H__
  26 #define __RADEON_AUDIO_H__
  27
  28 #include <linux/types.h>
  29
  30 #define RREG32_ENDPOINT(block, reg)             \
  31         radeon_audio_endpoint_rreg(rdev, (block), (reg))
  32 #define WREG32_ENDPOINT(block, reg, v)  \
  33         radeon_audio_endpoint_wreg(rdev, (block), (reg), (v))
  34
  35 struct radeon_audio_basic_funcs
  36 {
  37         u32  (*endpoint_rreg)(struct radeon_device *rdev, u32 offset, u32 reg);
  38         void (*endpoint_wreg)(struct radeon_device *rdev,
  39                 u32 offset, u32 reg, u32 v);
  40         void (*enable)(struct radeon_device *rdev,
  41                 struct r600_audio_pin *pin, u8 enable_mask);
  42         void (*update_avi_infoframe)(struct radeon_device *rdev, u32 offset,
  43                 unsigned char *buffer, size_t size);
  44 };
  45
  46 struct radeon_audio_funcs
  47 {
  48         void (*select_pin)(struct drm_encoder *encoder);
  49         struct r600_audio_pin* (*get_pin)(struct radeon_device *rdev);
  50         void (*write_latency_fields)(struct drm_encoder *encoder,
  51                 struct drm_connector *connector, struct drm_display_mode *mode);
  52         void (*write_sad_regs)(struct drm_encoder *encoder,
  53                 struct cea_sad *sads, int sad_count);
  54         void (*write_speaker_allocation)(struct drm_encoder *encoder,
  55                 u8 *sadb, int sad_count);
  56         void (*set_dto)(struct radeon_device *rdev,
  57                 struct radeon_crtc *crtc, unsigned int clock);
  58 };
  59
  60 int radeon_audio_init(struct radeon_device *rdev);
  61 void radeon_audio_detect(struct drm_connector *connector,
  62         enum drm_connector_status status);
  63 u32 radeon_audio_endpoint_rreg(struct radeon_device *rdev,
  64         u32 offset, u32 reg);
  65 void radeon_audio_endpoint_wreg(struct radeon_device *rdev,
  66         u32 offset,     u32 reg, u32 v);
  67 void radeon_audio_write_sad_regs(struct drm_encoder *encoder);
  68 void radeon_audio_write_speaker_allocation(struct drm_encoder *encoder);
  69 void radeon_audio_write_latency_fields(struct drm_encoder *encoder,
  70         struct drm_display_mode *mode);
  71 struct r600_audio_pin *radeon_audio_get_pin(struct drm_encoder *encoder);
  72 void radeon_audio_select_pin(struct drm_encoder *encoder);
  73 void radeon_audio_enable(struct radeon_device *rdev,
  74         struct r600_audio_pin *pin, u8 enable_mask);
  75 void radeon_audio_fini(struct radeon_device *rdev);
  76 void radeon_audio_set_dto(struct drm_encoder *encoder, unsigned int clock);
  77 void radeon_update_avi_infoframe(struct drm_encoder *encoder, void *buffer,
  78         size_t size);
  79
  80 #endif