/*
 * Copyright 2012-15 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 "dce110_transform_v.h"
#include "dm_services.h"
#include "dc.h"
#include "dce/dce_11_0_d.h"
#include "dce/dce_11_0_sh_mask.h"

#define SCLV_PHASES 64
#define DC_LOGGER \
        xfm->ctx->logger

struct sclv_ratios_inits {
        uint32_t h_int_scale_ratio_luma;
        uint32_t h_int_scale_ratio_chroma;
        uint32_t v_int_scale_ratio_luma;
        uint32_t v_int_scale_ratio_chroma;
        struct init_int_and_frac h_init_luma;
        struct init_int_and_frac h_init_chroma;
        struct init_int_and_frac v_init_luma;
        struct init_int_and_frac v_init_chroma;
};

static void calculate_viewport(
                const struct scaler_data *scl_data,
                struct rect *luma_viewport,
                struct rect *chroma_viewport)
{
        /*Do not set chroma vp for rgb444 pixel format*/
        luma_viewport->x = scl_data->viewport.x - scl_data->viewport.x % 2;
        luma_viewport->y = scl_data->viewport.y - scl_data->viewport.y % 2;
        luma_viewport->width =
                scl_data->viewport.width - scl_data->viewport.width % 2;
        luma_viewport->height =
                scl_data->viewport.height - scl_data->viewport.height % 2;
        chroma_viewport->x = luma_viewport->x;
        chroma_viewport->y = luma_viewport->y;
        chroma_viewport->height = luma_viewport->height;
        chroma_viewport->width = luma_viewport->width;

        if (scl_data->format == PIXEL_FORMAT_420BPP8) {
                luma_viewport->height += luma_viewport->height % 2;
                luma_viewport->width += luma_viewport->width % 2;
                /*for 420 video chroma is 1/4 the area of luma, scaled
                 *vertically and horizontally
                 */
                chroma_viewport->x = luma_viewport->x / 2;
                chroma_viewport->y = luma_viewport->y / 2;
                chroma_viewport->height = luma_viewport->height / 2;
                chroma_viewport->width = luma_viewport->width / 2;
        }
}

static void program_viewport(
        struct dce_transform *xfm_dce,
        struct rect *luma_view_port,
        struct rect *chroma_view_port)
{
        struct dc_context *ctx = xfm_dce->base.ctx;
        uint32_t value = 0;
        uint32_t addr = 0;

        if (luma_view_port->width != 0 && luma_view_port->height != 0) {
                addr = mmSCLV_VIEWPORT_START;
                value = 0;
                set_reg_field_value(
                        value,
                        luma_view_port->x,
                        SCLV_VIEWPORT_START,
                        VIEWPORT_X_START);
                set_reg_field_value(
                        value,
                        luma_view_port->y,
                        SCLV_VIEWPORT_START,
                        VIEWPORT_Y_START);
                dm_write_reg(ctx, addr, value);

                addr = mmSCLV_VIEWPORT_SIZE;
                value = 0;
                set_reg_field_value(
                        value,
                        luma_view_port->height,
                        SCLV_VIEWPORT_SIZE,
                        VIEWPORT_HEIGHT);
                set_reg_field_value(
                        value,
                        luma_view_port->width,
                        SCLV_VIEWPORT_SIZE,
                        VIEWPORT_WIDTH);
                dm_write_reg(ctx, addr, value);
        }

        if (chroma_view_port->width != 0 && chroma_view_port->height != 0) {
                addr = mmSCLV_VIEWPORT_START_C;
                value = 0;
                set_reg_field_value(
                        value,
                        chroma_view_port->x,
                        SCLV_VIEWPORT_START_C,
                        VIEWPORT_X_START_C);
                set_reg_field_value(
                        value,
                        chroma_view_port->y,
                        SCLV_VIEWPORT_START_C,
                        VIEWPORT_Y_START_C);
                dm_write_reg(ctx, addr, value);

                addr = mmSCLV_VIEWPORT_SIZE_C;
                value = 0;
                set_reg_field_value(
                        value,
                        chroma_view_port->height,
                        SCLV_VIEWPORT_SIZE_C,
                        VIEWPORT_HEIGHT_C);
                set_reg_field_value(
                        value,
                        chroma_view_port->width,
                        SCLV_VIEWPORT_SIZE_C,
                        VIEWPORT_WIDTH_C);
                dm_write_reg(ctx, addr, value);
        }
}

/*
 * Function:
 * void setup_scaling_configuration
 *
 * Purpose: setup scaling mode : bypass, RGb, YCbCr and nummber of taps
 * Input:   data
 *
 * Output:
 *  void
 */
static bool setup_scaling_configuration(
        struct dce_transform *xfm_dce,
        const struct scaler_data *data)
{
        bool is_scaling_needed = false;
        struct dc_context *ctx = xfm_dce->base.ctx;
        uint32_t value = 0;

        set_reg_field_value(value, data->taps.h_taps - 1,
                        SCLV_TAP_CONTROL, SCL_H_NUM_OF_TAPS);
        set_reg_field_value(value, data->taps.v_taps - 1,
                        SCLV_TAP_CONTROL, SCL_V_NUM_OF_TAPS);
        set_reg_field_value(value, data->taps.h_taps_c - 1,
                        SCLV_TAP_CONTROL, SCL_H_NUM_OF_TAPS_C);
        set_reg_field_value(value, data->taps.v_taps_c - 1,
                        SCLV_TAP_CONTROL, SCL_V_NUM_OF_TAPS_C);
        dm_write_reg(ctx, mmSCLV_TAP_CONTROL, value);

        value = 0;
        if (data->taps.h_taps + data->taps.v_taps > 2) {
                set_reg_field_value(value, 1, SCLV_MODE, SCL_MODE);
                set_reg_field_value(value, 1, SCLV_MODE, SCL_PSCL_EN);
                is_scaling_needed = true;
        } else {
                set_reg_field_value(value, 0, SCLV_MODE, SCL_MODE);
                set_reg_field_value(value, 0, SCLV_MODE, SCL_PSCL_EN);
        }

        if (data->taps.h_taps_c + data->taps.v_taps_c > 2) {
                set_reg_field_value(value, 1, SCLV_MODE, SCL_MODE_C);
                set_reg_field_value(value, 1, SCLV_MODE, SCL_PSCL_EN_C);
                is_scaling_needed = true;
        } else if (data->format != PIXEL_FORMAT_420BPP8) {
                set_reg_field_value(
                        value,
                        get_reg_field_value(value, SCLV_MODE, SCL_MODE),
                        SCLV_MODE,
                        SCL_MODE_C);
                set_reg_field_value(
                        value,
                        get_reg_field_value(value, SCLV_MODE, SCL_PSCL_EN),
                        SCLV_MODE,
                        SCL_PSCL_EN_C);
        } else {
                set_reg_field_value(value, 0, SCLV_MODE, SCL_MODE_C);
                set_reg_field_value(value, 0, SCLV_MODE, SCL_PSCL_EN_C);
        }
        dm_write_reg(ctx, mmSCLV_MODE, value);

        value = 0;
        /*
         * 0 - Replaced out of bound pixels with black pixel
         * (or any other required color)
         * 1 - Replaced out of bound pixels with the edge pixel
         */
        set_reg_field_value(value, 1, SCLV_CONTROL, SCL_BOUNDARY_MODE);
        dm_write_reg(ctx, mmSCLV_CONTROL, value);

        return is_scaling_needed;
}

/*
 * Function:
 * void program_overscan
 *
 * Purpose: Programs overscan border
 * Input:   overscan
 *
 * Output: void
 */
static void program_overscan(
                struct dce_transform *xfm_dce,
                const struct scaler_data *data)
{
        uint32_t overscan_left_right = 0;
        uint32_t overscan_top_bottom = 0;

        int overscan_right = data->h_active - data->recout.x - data->recout.width;
        int overscan_bottom = data->v_active - data->recout.y - data->recout.height;

        if (xfm_dce->base.ctx->dc->debug.visual_confirm != VISUAL_CONFIRM_DISABLE) {
                overscan_bottom += 2;
                overscan_right += 2;
        }

        if (overscan_right < 0) {
                BREAK_TO_DEBUGGER();
                overscan_right = 0;
        }
        if (overscan_bottom < 0) {
                BREAK_TO_DEBUGGER();
                overscan_bottom = 0;
        }

        set_reg_field_value(overscan_left_right, data->recout.x,
                        EXT_OVERSCAN_LEFT_RIGHT, EXT_OVERSCAN_LEFT);

        set_reg_field_value(overscan_left_right, overscan_right,
                        EXT_OVERSCAN_LEFT_RIGHT, EXT_OVERSCAN_RIGHT);

        set_reg_field_value(overscan_top_bottom, data->recout.y,
                        EXT_OVERSCAN_TOP_BOTTOM, EXT_OVERSCAN_TOP);

        set_reg_field_value(overscan_top_bottom, overscan_bottom,
                        EXT_OVERSCAN_TOP_BOTTOM, EXT_OVERSCAN_BOTTOM);

        dm_write_reg(xfm_dce->base.ctx,
                        mmSCLV_EXT_OVERSCAN_LEFT_RIGHT,
                        overscan_left_right);

        dm_write_reg(xfm_dce->base.ctx,
                        mmSCLV_EXT_OVERSCAN_TOP_BOTTOM,
                        overscan_top_bottom);
}

static void set_coeff_update_complete(
                struct dce_transform *xfm_dce)
{
        uint32_t value;

        value = dm_read_reg(xfm_dce->base.ctx, mmSCLV_UPDATE);
        set_reg_field_value(value, 1, SCLV_UPDATE, SCL_COEF_UPDATE_COMPLETE);
        dm_write_reg(xfm_dce->base.ctx, mmSCLV_UPDATE, value);
}

static void program_multi_taps_filter(
        struct dce_transform *xfm_dce,
        int taps,
        const uint16_t *coeffs,
        enum ram_filter_type filter_type)
{
        struct dc_context *ctx = xfm_dce->base.ctx;
        int i, phase, pair;
        int array_idx = 0;
        int taps_pairs = (taps + 1) / 2;
        int phases_to_program = SCLV_PHASES / 2 + 1;

        uint32_t select = 0;
        uint32_t power_ctl, power_ctl_off;

        if (!coeffs)
                return;

        /*We need to disable power gating on coeff memory to do programming*/
        power_ctl = dm_read_reg(ctx, mmDCFEV_MEM_PWR_CTRL);
        power_ctl_off = power_ctl;
        set_reg_field_value(power_ctl_off, 1, DCFEV_MEM_PWR_CTRL, SCLV_COEFF_MEM_PWR_DIS);
        dm_write_reg(ctx, mmDCFEV_MEM_PWR_CTRL, power_ctl_off);

        /*Wait to disable gating:*/
        for (i = 0; i < 10; i++) {
                if (get_reg_field_value(
                                dm_read_reg(ctx, mmDCFEV_MEM_PWR_STATUS),
                                DCFEV_MEM_PWR_STATUS,
                                SCLV_COEFF_MEM_PWR_STATE) == 0)
                        break;

                udelay(1);
        }

        set_reg_field_value(select, filter_type, SCLV_COEF_RAM_SELECT, SCL_C_RAM_FILTER_TYPE);

        for (phase = 0; phase < phases_to_program; phase++) {
                /*we always program N/2 + 1 phases, total phases N, but N/2-1 are just mirror
                phase 0 is unique and phase N/2 is unique if N is even*/
                set_reg_field_value(select, phase, SCLV_COEF_RAM_SELECT, SCL_C_RAM_PHASE);
                for (pair = 0; pair < taps_pairs; pair++) {
                        uint32_t data = 0;

                        set_reg_field_value(select, pair,
                                        SCLV_COEF_RAM_SELECT, SCL_C_RAM_TAP_PAIR_IDX);

                        dm_write_reg(ctx, mmSCLV_COEF_RAM_SELECT, select);

                        set_reg_field_value(
                                        data, 1,
                                        SCLV_COEF_RAM_TAP_DATA,
                                        SCL_C_RAM_EVEN_TAP_COEF_EN);
                        set_reg_field_value(
                                        data, coeffs[array_idx],
                                        SCLV_COEF_RAM_TAP_DATA,
                                        SCL_C_RAM_EVEN_TAP_COEF);

                        if (taps % 2 && pair == taps_pairs - 1) {
                                set_reg_field_value(
                                                data, 0,
                                                SCLV_COEF_RAM_TAP_DATA,
                                                SCL_C_RAM_ODD_TAP_COEF_EN);
                                array_idx++;
                        } else {
                                set_reg_field_value(
                                                data, 1,
                                                SCLV_COEF_RAM_TAP_DATA,
                                                SCL_C_RAM_ODD_TAP_COEF_EN);
                                set_reg_field_value(
                                                data, coeffs[array_idx + 1],
                                                SCLV_COEF_RAM_TAP_DATA,
                                                SCL_C_RAM_ODD_TAP_COEF);

                                array_idx += 2;
                        }

                        dm_write_reg(ctx, mmSCLV_COEF_RAM_TAP_DATA, data);
                }
        }

        /*We need to restore power gating on coeff memory to initial state*/
        dm_write_reg(ctx, mmDCFEV_MEM_PWR_CTRL, power_ctl);
}

static void calculate_inits(
        struct dce_transform *xfm_dce,
        const struct scaler_data *data,
        struct sclv_ratios_inits *inits,
        struct rect *luma_viewport,
        struct rect *chroma_viewport)
{
        inits->h_int_scale_ratio_luma =
                dc_fixpt_u2d19(data->ratios.horz) << 5;
        inits->v_int_scale_ratio_luma =
                dc_fixpt_u2d19(data->ratios.vert) << 5;
        inits->h_int_scale_ratio_chroma =
                dc_fixpt_u2d19(data->ratios.horz_c) << 5;
        inits->v_int_scale_ratio_chroma =
                dc_fixpt_u2d19(data->ratios.vert_c) << 5;

        inits->h_init_luma.integer = 1;
        inits->v_init_luma.integer = 1;
        inits->h_init_chroma.integer = 1;
        inits->v_init_chroma.integer = 1;
}

static void program_scl_ratios_inits(
        struct dce_transform *xfm_dce,
        struct sclv_ratios_inits *inits)
{
        struct dc_context *ctx = xfm_dce->base.ctx;
        uint32_t addr = mmSCLV_HORZ_FILTER_SCALE_RATIO;
        uint32_t value = 0;

        set_reg_field_value(
                value,
                inits->h_int_scale_ratio_luma,
                SCLV_HORZ_FILTER_SCALE_RATIO,
                SCL_H_SCALE_RATIO);
        dm_write_reg(ctx, addr, value);

        addr = mmSCLV_VERT_FILTER_SCALE_RATIO;
        value = 0;
        set_reg_field_value(
                value,
                inits->v_int_scale_ratio_luma,
                SCLV_VERT_FILTER_SCALE_RATIO,
                SCL_V_SCALE_RATIO);
        dm_write_reg(ctx, addr, value);

        addr = mmSCLV_HORZ_FILTER_SCALE_RATIO_C;
        value = 0;
        set_reg_field_value(
                value,
                inits->h_int_scale_ratio_chroma,
                SCLV_HORZ_FILTER_SCALE_RATIO_C,
                SCL_H_SCALE_RATIO_C);
        dm_write_reg(ctx, addr, value);

        addr = mmSCLV_VERT_FILTER_SCALE_RATIO_C;
        value = 0;
        set_reg_field_value(
                value,
                inits->v_int_scale_ratio_chroma,
                SCLV_VERT_FILTER_SCALE_RATIO_C,
                SCL_V_SCALE_RATIO_C);
        dm_write_reg(ctx, addr, value);

        addr = mmSCLV_HORZ_FILTER_INIT;
        value = 0;
        set_reg_field_value(
                value,
                inits->h_init_luma.fraction,
                SCLV_HORZ_FILTER_INIT,
                SCL_H_INIT_FRAC);
        set_reg_field_value(
                value,
                inits->h_init_luma.integer,
                SCLV_HORZ_FILTER_INIT,
                SCL_H_INIT_INT);
        dm_write_reg(ctx, addr, value);

        addr = mmSCLV_VERT_FILTER_INIT;
        value = 0;
        set_reg_field_value(
                value,
                inits->v_init_luma.fraction,
                SCLV_VERT_FILTER_INIT,
                SCL_V_INIT_FRAC);
        set_reg_field_value(
                value,
                inits->v_init_luma.integer,
                SCLV_VERT_FILTER_INIT,
                SCL_V_INIT_INT);
        dm_write_reg(ctx, addr, value);

        addr = mmSCLV_HORZ_FILTER_INIT_C;
        value = 0;
        set_reg_field_value(
                value,
                inits->h_init_chroma.fraction,
                SCLV_HORZ_FILTER_INIT_C,
                SCL_H_INIT_FRAC_C);
        set_reg_field_value(
                value,
                inits->h_init_chroma.integer,
                SCLV_HORZ_FILTER_INIT_C,
                SCL_H_INIT_INT_C);
        dm_write_reg(ctx, addr, value);

        addr = mmSCLV_VERT_FILTER_INIT_C;
        value = 0;
        set_reg_field_value(
                value,
                inits->v_init_chroma.fraction,
                SCLV_VERT_FILTER_INIT_C,
                SCL_V_INIT_FRAC_C);
        set_reg_field_value(
                value,
                inits->v_init_chroma.integer,
                SCLV_VERT_FILTER_INIT_C,
                SCL_V_INIT_INT_C);
        dm_write_reg(ctx, addr, value);
}

static const uint16_t *get_filter_coeffs_64p(int taps, struct fixed31_32 ratio)
{
        if (taps == 4)
                return get_filter_4tap_64p(ratio);
        else if (taps == 2)
                return get_filter_2tap_64p();
        else if (taps == 1)
                return NULL;
        else {
                /* should never happen, bug */
                BREAK_TO_DEBUGGER();
                return NULL;
        }
}

static bool dce110_xfmv_power_up_line_buffer(struct transform *xfm)
{
        struct dce_transform *xfm_dce = TO_DCE_TRANSFORM(xfm);
        uint32_t value;

        value = dm_read_reg(xfm_dce->base.ctx, mmLBV_MEMORY_CTRL);

        /*Use all three pieces of memory always*/
        set_reg_field_value(value, 0, LBV_MEMORY_CTRL, LB_MEMORY_CONFIG);
        /*hard coded number DCE11 1712(0x6B0) Partitions: 720/960/1712*/
        set_reg_field_value(value, xfm_dce->lb_memory_size, LBV_MEMORY_CTRL,
                        LB_MEMORY_SIZE);

        dm_write_reg(xfm_dce->base.ctx, mmLBV_MEMORY_CTRL, value);

        return true;
}

static void dce110_xfmv_set_scaler(
        struct transform *xfm,
        const struct scaler_data *data)
{
        struct dce_transform *xfm_dce = TO_DCE_TRANSFORM(xfm);
        bool is_scaling_required = false;
        bool filter_updated = false;
        const uint16_t *coeffs_v, *coeffs_h, *coeffs_h_c, *coeffs_v_c;
        struct rect luma_viewport = {0};
        struct rect chroma_viewport = {0};

        dce110_xfmv_power_up_line_buffer(xfm);
        /* 1. Calculate viewport, viewport programming should happen after init
         * calculations as they may require an adjustment in the viewport.
         */

        calculate_viewport(data, &luma_viewport, &chroma_viewport);

        /* 2. Program overscan */
        program_overscan(xfm_dce, data);

        /* 3. Program taps and configuration */
        is_scaling_required = setup_scaling_configuration(xfm_dce, data);

        if (is_scaling_required) {
                /* 4. Calculate and program ratio, filter initialization */

                struct sclv_ratios_inits inits = { 0 };

                calculate_inits(
                        xfm_dce,
                        data,
                        &inits,
                        &luma_viewport,
                        &chroma_viewport);

                program_scl_ratios_inits(xfm_dce, &inits);

                coeffs_v = get_filter_coeffs_64p(data->taps.v_taps, data->ratios.vert);
                coeffs_h = get_filter_coeffs_64p(data->taps.h_taps, data->ratios.horz);
                coeffs_v_c = get_filter_coeffs_64p(data->taps.v_taps_c, data->ratios.vert_c);
                coeffs_h_c = get_filter_coeffs_64p(data->taps.h_taps_c, data->ratios.horz_c);

                if (coeffs_v != xfm_dce->filter_v
                                || coeffs_v_c != xfm_dce->filter_v_c
                                || coeffs_h != xfm_dce->filter_h
                                || coeffs_h_c != xfm_dce->filter_h_c) {
                /* 5. Program vertical filters */
                        program_multi_taps_filter(
                                        xfm_dce,
                                        data->taps.v_taps,
                                        coeffs_v,
                                        FILTER_TYPE_RGB_Y_VERTICAL);
                        program_multi_taps_filter(
                                        xfm_dce,
                                        data->taps.v_taps_c,
                                        coeffs_v_c,
                                        FILTER_TYPE_CBCR_VERTICAL);

                /* 6. Program horizontal filters */
                        program_multi_taps_filter(
                                        xfm_dce,
                                        data->taps.h_taps,
                                        coeffs_h,
                                        FILTER_TYPE_RGB_Y_HORIZONTAL);
                        program_multi_taps_filter(
                                        xfm_dce,
                                        data->taps.h_taps_c,
                                        coeffs_h_c,
                                        FILTER_TYPE_CBCR_HORIZONTAL);

                        xfm_dce->filter_v = coeffs_v;
                        xfm_dce->filter_v_c = coeffs_v_c;
                        xfm_dce->filter_h = coeffs_h;
                        xfm_dce->filter_h_c = coeffs_h_c;
                        filter_updated = true;
                }
        }

        /* 7. Program the viewport */
        program_viewport(xfm_dce, &luma_viewport, &chroma_viewport);

        /* 8. Set bit to flip to new coefficient memory */
        if (filter_updated)
                set_coeff_update_complete(xfm_dce);
}

static void dce110_xfmv_reset(struct transform *xfm)
{
        struct dce_transform *xfm_dce = TO_DCE_TRANSFORM(xfm);

        xfm_dce->filter_h = NULL;
        xfm_dce->filter_v = NULL;
        xfm_dce->filter_h_c = NULL;
        xfm_dce->filter_v_c = NULL;
}

static void dce110_xfmv_set_gamut_remap(
        struct transform *xfm,
        const struct xfm_grph_csc_adjustment *adjust)
{
        /* DO NOTHING*/
}

static void dce110_xfmv_set_pixel_storage_depth(
        struct transform *xfm,
        enum lb_pixel_depth depth,
        const struct bit_depth_reduction_params *bit_depth_params)
{
        struct dce_transform *xfm_dce = TO_DCE_TRANSFORM(xfm);
        int pixel_depth = 0;
        int expan_mode = 0;
        uint32_t reg_data = 0;

        switch (depth) {
        case LB_PIXEL_DEPTH_18BPP:
                pixel_depth = 2;
                expan_mode  = 1;
                break;
        case LB_PIXEL_DEPTH_24BPP:
                pixel_depth = 1;
                expan_mode  = 1;
                break;
        case LB_PIXEL_DEPTH_30BPP:
                pixel_depth = 0;
                expan_mode  = 1;
                break;
        case LB_PIXEL_DEPTH_36BPP:
                pixel_depth = 3;
                expan_mode  = 0;
                break;
        default:
                BREAK_TO_DEBUGGER();
                break;
        }

        set_reg_field_value(
                reg_data,
                expan_mode,
                LBV_DATA_FORMAT,
                PIXEL_EXPAN_MODE);

        set_reg_field_value(
                reg_data,
                pixel_depth,
                LBV_DATA_FORMAT,
                PIXEL_DEPTH);

        dm_write_reg(xfm->ctx, mmLBV_DATA_FORMAT, reg_data);

        if (!(xfm_dce->lb_pixel_depth_supported & depth)) {
                /*we should use unsupported capabilities
                 *  unless it is required by w/a*/
                DC_LOG_WARNING("%s: Capability not supported",
                        __func__);
        }
}

static const struct transform_funcs dce110_xfmv_funcs = {
        .transform_reset = dce110_xfmv_reset,
        .transform_set_scaler = dce110_xfmv_set_scaler,
        .transform_set_gamut_remap =
                dce110_xfmv_set_gamut_remap,
        .opp_set_csc_default = dce110_opp_v_set_csc_default,
        .opp_set_csc_adjustment = dce110_opp_v_set_csc_adjustment,
        .opp_power_on_regamma_lut = dce110_opp_power_on_regamma_lut_v,
        .opp_program_regamma_pwl = dce110_opp_program_regamma_pwl_v,
        .opp_set_regamma_mode = dce110_opp_set_regamma_mode_v,
        .transform_set_pixel_storage_depth =
                        dce110_xfmv_set_pixel_storage_depth,
        .transform_get_optimal_number_of_taps =
                dce_transform_get_optimal_number_of_taps
};
/*****************************************/
/* Constructor, Destructor               */
/*****************************************/

bool dce110_transform_v_construct(
        struct dce_transform *xfm_dce,
        struct dc_context *ctx)
{
        xfm_dce->base.ctx = ctx;

        xfm_dce->base.funcs = &dce110_xfmv_funcs;

        xfm_dce->lb_pixel_depth_supported =
                        LB_PIXEL_DEPTH_18BPP |
                        LB_PIXEL_DEPTH_24BPP |
                        LB_PIXEL_DEPTH_30BPP |
                        LB_PIXEL_DEPTH_36BPP;

        xfm_dce->prescaler_on = true;
        xfm_dce->lb_bits_per_entry = LB_BITS_PER_ENTRY;
        xfm_dce->lb_memory_size = LB_TOTAL_NUMBER_OF_ENTRIES; /*0x6B0*/

        return true;
}