/*
 * Copyright 2012-17 Advanced Micro Devices, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: AMD
 *
 */

#include "reg_helper.h"
#include "resource.h"
#include "dwb.h"
#include "dcn10_dwb.h"


#define REG(reg)\
        dwbc10->dwbc_regs->reg

#define CTX \
        dwbc10->base.ctx

#undef FN
#define FN(reg_name, field_name) \
        dwbc10->dwbc_shift->field_name, dwbc10->dwbc_mask->field_name

#define TO_DCN10_DWBC(dwbc_base) \
        container_of(dwbc_base, struct dcn10_dwbc, base)

static bool dwb1_get_caps(struct dwbc *dwbc, struct dwb_caps *caps)
{
        if (caps) {
                caps->adapter_id = 0;   /* we only support 1 adapter currently */
                caps->hw_version = DCN_VERSION_1_0;
                caps->num_pipes = 2;
                memset(&caps->reserved, 0, sizeof(caps->reserved));
                memset(&caps->reserved2, 0, sizeof(caps->reserved2));
                caps->sw_version = dwb_ver_1_0;
                caps->caps.support_dwb = true;
                caps->caps.support_ogam = false;
                caps->caps.support_wbscl = true;
                caps->caps.support_ocsc = false;
                return true;
        } else {
                return false;
        }
}

static bool dwb1_enable(struct dwbc *dwbc, struct dc_dwb_params *params)
{
        struct dcn10_dwbc *dwbc10 = TO_DCN10_DWBC(dwbc);

        /* disable first. */
        dwbc->funcs->disable(dwbc);

        /* disable power gating */
        REG_UPDATE_5(WB_EC_CONFIG, DISPCLK_R_WB_GATE_DIS, 1,
                 DISPCLK_G_WB_GATE_DIS, 1, DISPCLK_G_WBSCL_GATE_DIS, 1,
                 WB_LB_LS_DIS, 1, WB_LUT_LS_DIS, 1);

        REG_UPDATE(WB_ENABLE, WB_ENABLE, 1);

        return true;
}

static bool dwb1_disable(struct dwbc *dwbc)
{
        struct dcn10_dwbc *dwbc10 = TO_DCN10_DWBC(dwbc);

        /* disable CNV */
        REG_UPDATE(CNV_MODE, CNV_FRAME_CAPTURE_EN, 0);

        /* disable WB */
        REG_UPDATE(WB_ENABLE, WB_ENABLE, 0);

        /* soft reset */
        REG_UPDATE(WB_SOFT_RESET, WB_SOFT_RESET, 1);
        REG_UPDATE(WB_SOFT_RESET, WB_SOFT_RESET, 0);

        /* enable power gating */
        REG_UPDATE_5(WB_EC_CONFIG, DISPCLK_R_WB_GATE_DIS, 0,
                 DISPCLK_G_WB_GATE_DIS, 0, DISPCLK_G_WBSCL_GATE_DIS, 0,
                 WB_LB_LS_DIS, 0, WB_LUT_LS_DIS, 0);

        return true;
}

const struct dwbc_funcs dcn10_dwbc_funcs = {
        .get_caps                       = dwb1_get_caps,
        .enable                         = dwb1_enable,
        .disable                        = dwb1_disable,
        .update                         = NULL,
        .set_stereo                     = NULL,
        .set_new_content                = NULL,
        .set_warmup                     = NULL,
        .dwb_set_scaler                 = NULL,
};

void dcn10_dwbc_construct(struct dcn10_dwbc *dwbc10,
                struct dc_context *ctx,
                const struct dcn10_dwbc_registers *dwbc_regs,
                const struct dcn10_dwbc_shift *dwbc_shift,
                const struct dcn10_dwbc_mask *dwbc_mask,
                int inst)
{
        dwbc10->base.ctx = ctx;

        dwbc10->base.inst = inst;
        dwbc10->base.funcs = &dcn10_dwbc_funcs;

        dwbc10->dwbc_regs = dwbc_regs;
        dwbc10->dwbc_shift = dwbc_shift;
        dwbc10->dwbc_mask = dwbc_mask;
}