drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h

   1 /*
   2  * Copyright 2019 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: AMD
  23  *
  24  */
  25
  26 #ifndef AMD_DAL_DEV_AMDGPU_DM_AMDGPU_DM_CRC_H_
  27 #define AMD_DAL_DEV_AMDGPU_DM_AMDGPU_DM_CRC_H_
  28
  29 struct drm_crtc;
  30 struct dm_crtc_state;
  31
  32 enum amdgpu_dm_pipe_crc_source {
  33         AMDGPU_DM_PIPE_CRC_SOURCE_NONE = 0,
  34         AMDGPU_DM_PIPE_CRC_SOURCE_CRTC,
  35         AMDGPU_DM_PIPE_CRC_SOURCE_CRTC_DITHER,
  36         AMDGPU_DM_PIPE_CRC_SOURCE_DPRX,
  37         AMDGPU_DM_PIPE_CRC_SOURCE_DPRX_DITHER,
  38         AMDGPU_DM_PIPE_CRC_SOURCE_MAX,
  39         AMDGPU_DM_PIPE_CRC_SOURCE_INVALID = -1,
  40 };
  41
  42 static inline bool amdgpu_dm_is_valid_crc_source(enum amdgpu_dm_pipe_crc_source source)
  43 {
  44         return (source > AMDGPU_DM_PIPE_CRC_SOURCE_NONE) &&
  45                (source < AMDGPU_DM_PIPE_CRC_SOURCE_MAX);
  46 }
  47
  48 /* amdgpu_dm_crc.c */
  49 #ifdef CONFIG_DEBUG_FS
  50 int amdgpu_dm_crtc_configure_crc_source(struct drm_crtc *crtc,
  51                                         struct dm_crtc_state *dm_crtc_state,
  52                                         enum amdgpu_dm_pipe_crc_source source);
  53 int amdgpu_dm_crtc_set_crc_source(struct drm_crtc *crtc, const char *src_name);
  54 int amdgpu_dm_crtc_verify_crc_source(struct drm_crtc *crtc,
  55                                      const char *src_name,
  56                                      size_t *values_cnt);
  57 const char *const *amdgpu_dm_crtc_get_crc_sources(struct drm_crtc *crtc,
  58                                                   size_t *count);
  59 void amdgpu_dm_crtc_handle_crc_irq(struct drm_crtc *crtc);
  60 #else
  61 #define amdgpu_dm_crtc_set_crc_source NULL
  62 #define amdgpu_dm_crtc_verify_crc_source NULL
  63 #define amdgpu_dm_crtc_get_crc_sources NULL
  64 #define amdgpu_dm_crtc_handle_crc_irq(x)
  65 #endif
  66
  67 #endif /* AMD_DAL_DEV_AMDGPU_DM_AMDGPU_DM_CRC_H_ */