LXR linux/drivers/gpu/drm/amd/display/dc/gpio/hpd

   1/*
   2 * Copyright 2012-16 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 DRIVERS_GPU_DRM_AMD_DC_DEV_DC_GPIO_HPD_REGS_H_
  27#define DRIVERS_GPU_DRM_AMD_DC_DEV_DC_GPIO_HPD_REGS_H_
  28
  29#include "gpio_regs.h"
  30
  31#define ONE_MORE_0 1
  32#define ONE_MORE_1 2
  33#define ONE_MORE_2 3
  34#define ONE_MORE_3 4
  35#define ONE_MORE_4 5
  36#define ONE_MORE_5 6
  37
  38
  39#define HPD_GPIO_REG_LIST_ENTRY(type,cd,id) \
  40        .type ## _reg =  REG(DC_GPIO_HPD_## type),\
  41        .type ## _mask =  DC_GPIO_HPD_ ## type ## __DC_GPIO_HPD ## id ## _ ## type ## _MASK,\
  42        .type ## _shift = DC_GPIO_HPD_ ## type ## __DC_GPIO_HPD ## id ## _ ## type ## __SHIFT
  43
  44#define HPD_GPIO_REG_LIST(id) \
  45        {\
  46        HPD_GPIO_REG_LIST_ENTRY(MASK,cd,id),\
  47        HPD_GPIO_REG_LIST_ENTRY(A,cd,id),\
  48        HPD_GPIO_REG_LIST_ENTRY(EN,cd,id),\
  49        HPD_GPIO_REG_LIST_ENTRY(Y,cd,id)\
  50        }
  51
  52#define HPD_REG_LIST(id) \
  53        HPD_GPIO_REG_LIST(ONE_MORE_ ## id), \
  54        .int_status = REGI(DC_HPD_INT_STATUS, HPD, id),\
  55        .toggle_filt_cntl = REGI(DC_HPD_TOGGLE_FILT_CNTL, HPD, id)
  56
  57 #define HPD_MASK_SH_LIST(mask_sh) \
  58                SF_HPD(DC_HPD_INT_STATUS, DC_HPD_SENSE_DELAYED, mask_sh),\
  59                SF_HPD(DC_HPD_INT_STATUS, DC_HPD_SENSE, mask_sh),\
  60                SF_HPD(DC_HPD_TOGGLE_FILT_CNTL, DC_HPD_CONNECT_INT_DELAY, mask_sh),\
  61                SF_HPD(DC_HPD_TOGGLE_FILT_CNTL, DC_HPD_DISCONNECT_INT_DELAY, mask_sh)
  62
  63struct hpd_registers {
  64        struct gpio_registers gpio;
  65        uint32_t int_status;
  66        uint32_t toggle_filt_cntl;
  67};
  68
  69struct hpd_sh_mask {
  70        /* int_status */
  71        uint32_t DC_HPD_SENSE_DELAYED;
  72        uint32_t DC_HPD_SENSE;
  73        /* toggle_filt_cntl */
  74        uint32_t DC_HPD_CONNECT_INT_DELAY;
  75        uint32_t DC_HPD_DISCONNECT_INT_DELAY;
  76};
  77
  78
  79#endif /* DRIVERS_GPU_DRM_AMD_DC_DEV_DC_GPIO_HPD_REGS_H_ */
  80