/*
 * Copyright 2018 Red Hat 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.
 */
#include "head.h"
#include "core.h"

#include "nvif/push.h"
#include <nvif/push507c.h>

#include <nvhw/class/cl917d.h>

static int
head917d_dither(struct nv50_head *head, struct nv50_head_atom *asyh)
{
        struct nvif_push *push = &nv50_disp(head->base.base.dev)->core->chan.push;
        const int i = head->base.index;
        int ret;

        if ((ret = PUSH_WAIT(push, 2)))
                return ret;

        PUSH_MTHD(push, NV917D, HEAD_SET_DITHER_CONTROL(i),
                  NVVAL(NV917D, HEAD_SET_DITHER_CONTROL, ENABLE, asyh->dither.enable) |
                  NVVAL(NV917D, HEAD_SET_DITHER_CONTROL, BITS, asyh->dither.bits) |
                  NVVAL(NV917D, HEAD_SET_DITHER_CONTROL, MODE, asyh->dither.mode) |
                  NVVAL(NV917D, HEAD_SET_DITHER_CONTROL, PHASE, 0));
        return 0;
}

static int
head917d_base(struct nv50_head *head, struct nv50_head_atom *asyh)
{
        struct nvif_push *push = &nv50_disp(head->base.base.dev)->core->chan.push;
        const int i = head->base.index;
        u32 bounds = 0;
        int ret;

        if (asyh->base.cpp) {
                switch (asyh->base.cpp) {
                case 8: bounds |= NVDEF(NV917D, HEAD_SET_BASE_CHANNEL_USAGE_BOUNDS, PIXEL_DEPTH, BPP_64); break;
                case 4: bounds |= NVDEF(NV917D, HEAD_SET_BASE_CHANNEL_USAGE_BOUNDS, PIXEL_DEPTH, BPP_32); break;
                case 2: bounds |= NVDEF(NV917D, HEAD_SET_BASE_CHANNEL_USAGE_BOUNDS, PIXEL_DEPTH, BPP_16); break;
                case 1: bounds |= NVDEF(NV917D, HEAD_SET_BASE_CHANNEL_USAGE_BOUNDS, PIXEL_DEPTH, BPP_8); break;
                default:
                        WARN_ON(1);
                        break;
                }
                bounds |= NVDEF(NV917D, HEAD_SET_BASE_CHANNEL_USAGE_BOUNDS, USABLE, TRUE);
                bounds |= NVDEF(NV917D, HEAD_SET_BASE_CHANNEL_USAGE_BOUNDS, BASE_LUT, USAGE_1025);
        }

        if ((ret = PUSH_WAIT(push, 2)))
                return ret;

        PUSH_MTHD(push, NV917D, HEAD_SET_BASE_CHANNEL_USAGE_BOUNDS(i), bounds);
        return 0;
}

static int
head917d_curs_set(struct nv50_head *head, struct nv50_head_atom *asyh)
{
        struct nvif_push *push = &nv50_disp(head->base.base.dev)->core->chan.push;
        const int i = head->base.index;
        int ret;

        ret = PUSH_WAIT(push, 5);
        if (ret)
                return ret;

        PUSH_MTHD(push, NV917D, HEAD_SET_CONTROL_CURSOR(i),
                  NVDEF(NV917D, HEAD_SET_CONTROL_CURSOR, ENABLE, ENABLE) |
                  NVVAL(NV917D, HEAD_SET_CONTROL_CURSOR, FORMAT, asyh->curs.format) |
                  NVVAL(NV917D, HEAD_SET_CONTROL_CURSOR, SIZE, asyh->curs.layout) |
                  NVVAL(NV917D, HEAD_SET_CONTROL_CURSOR, HOT_SPOT_X, 0) |
                  NVVAL(NV917D, HEAD_SET_CONTROL_CURSOR, HOT_SPOT_Y, 0) |
                  NVDEF(NV917D, HEAD_SET_CONTROL_CURSOR, COMPOSITION, ALPHA_BLEND),

                                HEAD_SET_OFFSET_CURSOR(i), asyh->curs.offset >> 8);

        PUSH_MTHD(push, NV917D, HEAD_SET_CONTEXT_DMA_CURSOR(i), asyh->curs.handle);
        return 0;
}

int
head917d_curs_layout(struct nv50_head *head, struct nv50_wndw_atom *asyw,
                     struct nv50_head_atom *asyh)
{
        switch (asyw->state.fb->width) {
        case  32: asyh->curs.layout = NV917D_HEAD_SET_CONTROL_CURSOR_SIZE_W32_H32; break;
        case  64: asyh->curs.layout = NV917D_HEAD_SET_CONTROL_CURSOR_SIZE_W64_H64; break;
        case 128: asyh->curs.layout = NV917D_HEAD_SET_CONTROL_CURSOR_SIZE_W128_H128; break;
        case 256: asyh->curs.layout = NV917D_HEAD_SET_CONTROL_CURSOR_SIZE_W256_H256; break;
        default:
                return -EINVAL;
        }
        return 0;
}

const struct nv50_head_func
head917d = {
        .view = head907d_view,
        .mode = head907d_mode,
        .olut = head907d_olut,
        .ilut_check = head907d_ilut_check,
        .olut_size = 1024,
        .olut_set = head907d_olut_set,
        .olut_clr = head907d_olut_clr,
        .core_calc = head507d_core_calc,
        .core_set = head907d_core_set,
        .core_clr = head907d_core_clr,
        .curs_layout = head917d_curs_layout,
        .curs_format = head507d_curs_format,
        .curs_set = head917d_curs_set,
        .curs_clr = head907d_curs_clr,
        .base = head917d_base,
        .ovly = head907d_ovly,
        .dither = head917d_dither,
        .procamp = head907d_procamp,
        .or = head907d_or,
};