linux/drivers/gpu/drm/amd/display/dc/gpio/dce120/hw_factory_dce120.c
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   1/*
   2 * Copyright 2013-15 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#include "include/gpio_types.h"
  28#include "../hw_factory.h"
  29
  30#include "../hw_gpio.h"
  31#include "../hw_ddc.h"
  32#include "../hw_hpd.h"
  33#include "../hw_generic.h"
  34
  35#include "hw_factory_dce120.h"
  36
  37#include "dce/dce_12_0_offset.h"
  38#include "dce/dce_12_0_sh_mask.h"
  39#include "soc15_hw_ip.h"
  40#include "vega10_ip_offset.h"
  41
  42#define block HPD
  43#define reg_num 0
  44
  45/* set field name */
  46#define SF_HPD(reg_name, field_name, post_fix)\
  47        .field_name = HPD0_ ## reg_name ## __ ## field_name ## post_fix
  48
  49/* set field name */
  50#define SF_HPD(reg_name, field_name, post_fix)\
  51        .field_name = HPD0_ ## reg_name ## __ ## field_name ## post_fix
  52
  53#define BASE_INNER(seg) \
  54        DCE_BASE__INST0_SEG ## seg
  55
  56/* compile time expand base address. */
  57#define BASE(seg) \
  58        BASE_INNER(seg)
  59
  60#define REG(reg_name)\
  61                BASE(mm ## reg_name ## _BASE_IDX) + mm ## reg_name
  62
  63#define REGI(reg_name, block, id)\
  64        BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
  65                                mm ## block ## id ## _ ## reg_name
  66
  67
  68#include "reg_helper.h"
  69#include "../hpd_regs.h"
  70
  71#define hpd_regs(id) \
  72{\
  73        HPD_REG_LIST(id)\
  74}
  75
  76static const struct hpd_registers hpd_regs[] = {
  77        hpd_regs(0),
  78        hpd_regs(1),
  79        hpd_regs(2),
  80        hpd_regs(3),
  81        hpd_regs(4),
  82        hpd_regs(5)
  83};
  84
  85static const struct hpd_sh_mask hpd_shift = {
  86                HPD_MASK_SH_LIST(__SHIFT)
  87};
  88
  89static const struct hpd_sh_mask hpd_mask = {
  90                HPD_MASK_SH_LIST(_MASK)
  91};
  92
  93#include "../ddc_regs.h"
  94
  95 /* set field name */
  96#define SF_DDC(reg_name, field_name, post_fix)\
  97        .field_name = reg_name ## __ ## field_name ## post_fix
  98
  99static const struct ddc_registers ddc_data_regs[] = {
 100        ddc_data_regs(1),
 101        ddc_data_regs(2),
 102        ddc_data_regs(3),
 103        ddc_data_regs(4),
 104        ddc_data_regs(5),
 105        ddc_data_regs(6),
 106        ddc_vga_data_regs,
 107        ddc_i2c_data_regs
 108};
 109
 110static const struct ddc_registers ddc_clk_regs[] = {
 111        ddc_clk_regs(1),
 112        ddc_clk_regs(2),
 113        ddc_clk_regs(3),
 114        ddc_clk_regs(4),
 115        ddc_clk_regs(5),
 116        ddc_clk_regs(6),
 117        ddc_vga_clk_regs,
 118        ddc_i2c_clk_regs
 119};
 120
 121static const struct ddc_sh_mask ddc_shift = {
 122                DDC_MASK_SH_LIST(__SHIFT)
 123};
 124
 125static const struct ddc_sh_mask ddc_mask = {
 126                DDC_MASK_SH_LIST(_MASK)
 127};
 128
 129static void define_ddc_registers(
 130                struct hw_gpio_pin *pin,
 131                uint32_t en)
 132{
 133        struct hw_ddc *ddc = HW_DDC_FROM_BASE(pin);
 134
 135        switch (pin->id) {
 136        case GPIO_ID_DDC_DATA:
 137                ddc->regs = &ddc_data_regs[en];
 138                ddc->base.regs = &ddc_data_regs[en].gpio;
 139                break;
 140        case GPIO_ID_DDC_CLOCK:
 141                ddc->regs = &ddc_clk_regs[en];
 142                ddc->base.regs = &ddc_clk_regs[en].gpio;
 143                break;
 144        default:
 145                ASSERT_CRITICAL(false);
 146                return;
 147        }
 148
 149        ddc->shifts = &ddc_shift;
 150        ddc->masks = &ddc_mask;
 151
 152}
 153
 154static void define_hpd_registers(struct hw_gpio_pin *pin, uint32_t en)
 155{
 156        struct hw_hpd *hpd = HW_HPD_FROM_BASE(pin);
 157
 158        hpd->regs = &hpd_regs[en];
 159        hpd->shifts = &hpd_shift;
 160        hpd->masks = &hpd_mask;
 161        hpd->base.regs = &hpd_regs[en].gpio;
 162}
 163
 164
 165/* function table */
 166static const struct hw_factory_funcs funcs = {
 167        .init_ddc_data = dal_hw_ddc_init,
 168        .init_generic = NULL,
 169        .init_hpd = dal_hw_hpd_init,
 170        .get_ddc_pin = dal_hw_ddc_get_pin,
 171        .get_hpd_pin = dal_hw_hpd_get_pin,
 172        .get_generic_pin = NULL,
 173        .define_hpd_registers = define_hpd_registers,
 174        .define_ddc_registers = define_ddc_registers
 175};
 176/*
 177 * dal_hw_factory_dce120_init
 178 *
 179 * @brief
 180 * Initialize HW factory function pointers and pin info
 181 *
 182 * @param
 183 * struct hw_factory *factory - [out] struct of function pointers
 184 */
 185void dal_hw_factory_dce120_init(struct hw_factory *factory)
 186{
 187        /*TODO check ASIC CAPs*/
 188        factory->number_of_pins[GPIO_ID_DDC_DATA] = 8;
 189        factory->number_of_pins[GPIO_ID_DDC_CLOCK] = 8;
 190        factory->number_of_pins[GPIO_ID_GENERIC] = 7;
 191        factory->number_of_pins[GPIO_ID_HPD] = 6;
 192        factory->number_of_pins[GPIO_ID_GPIO_PAD] = 31;
 193        factory->number_of_pins[GPIO_ID_VIP_PAD] = 0;
 194        factory->number_of_pins[GPIO_ID_SYNC] = 2;
 195        factory->number_of_pins[GPIO_ID_GSL] = 4;
 196
 197        factory->funcs = &funcs;
 198}
 199