drivers/gpu/drm/amd/display/dc/i2caux/dce100/i2caux_dce100.c

   1 /*
   2  * Copyright 2012-15 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 #include "dm_services.h"
  27
  28 #include "include/i2caux_interface.h"
  29 #include "../i2caux.h"
  30 #include "../engine.h"
  31 #include "../i2c_engine.h"
  32 #include "../i2c_sw_engine.h"
  33 #include "../i2c_hw_engine.h"
  34
  35 #include "../dce110/aux_engine_dce110.h"
  36 #include "../dce110/i2c_hw_engine_dce110.h"
  37 #include "../dce110/i2caux_dce110.h"
  38
  39 #include "dce/dce_10_0_d.h"
  40 #include "dce/dce_10_0_sh_mask.h"
  41
  42 /* set register offset */
  43 #define SR(reg_name)\
  44         .reg_name = mm ## reg_name
  45
  46 /* set register offset with instance */
  47 #define SRI(reg_name, block, id)\
  48         .reg_name = mm ## block ## id ## _ ## reg_name
  49
  50 #define aux_regs(id)\
  51 [id] = {\
  52         AUX_COMMON_REG_LIST(id), \
  53         .AUX_RESET_MASK = 0 \
  54 }
  55
  56 #define hw_engine_regs(id)\
  57 {\
  58                 I2C_HW_ENGINE_COMMON_REG_LIST(id) \
  59 }
  60
  61 static const struct dce110_aux_registers dce100_aux_regs[] = {
  62                 aux_regs(0),
  63                 aux_regs(1),
  64                 aux_regs(2),
  65                 aux_regs(3),
  66                 aux_regs(4),
  67                 aux_regs(5),
  68 };
  69
  70 static const struct dce110_i2c_hw_engine_registers dce100_hw_engine_regs[] = {
  71                 hw_engine_regs(1),
  72                 hw_engine_regs(2),
  73                 hw_engine_regs(3),
  74                 hw_engine_regs(4),
  75                 hw_engine_regs(5),
  76                 hw_engine_regs(6)
  77 };
  78
  79 static const struct dce110_i2c_hw_engine_shift i2c_shift = {
  80                 I2C_COMMON_MASK_SH_LIST_DCE100(__SHIFT)
  81 };
  82
  83 static const struct dce110_i2c_hw_engine_mask i2c_mask = {
  84                 I2C_COMMON_MASK_SH_LIST_DCE100(_MASK)
  85 };
  86
  87 struct i2caux *dal_i2caux_dce100_create(
  88         struct dc_context *ctx)
  89 {
  90         struct i2caux_dce110 *i2caux_dce110 =
  91                 dm_alloc(sizeof(struct i2caux_dce110));
  92
  93         if (!i2caux_dce110) {
  94                 ASSERT_CRITICAL(false);
  95                 return NULL;
  96         }
  97
  98         if (dal_i2caux_dce110_construct(
  99                         i2caux_dce110,
 100                         ctx,
 101                         dce100_aux_regs,
 102                         dce100_hw_engine_regs,
 103                         &i2c_shift,
 104                         &i2c_mask))
 105                 return &i2caux_dce110->base;
 106
 107         ASSERT_CRITICAL(false);
 108
 109         dm_free(i2caux_dce110);
 110
 111         return NULL;
 112 }