// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (c) 2015-2019, 2021, The Linux Foundation. All rights reserved.
 */

#include <drm/msm_drm_pp.h>
#include "sde_hw_mdss.h"
#include "sde_hwio.h"
#include "sde_hw_catalog.h"
#include "sde_hw_dspp.h"
#include "sde_hw_color_processing.h"
#include "sde_dbg.h"
#include "sde_ad4.h"
#include "sde_hw_rc.h"
#include "sde_kms.h"

static struct sde_dspp_cfg *_dspp_offset(enum sde_dspp dspp,
		struct sde_mdss_cfg *m,
		void __iomem *addr,
		struct sde_hw_blk_reg_map *b)
{
	int i;

	if (!m || !addr || !b)
		return ERR_PTR(-EINVAL);

	for (i = 0; i < m->dspp_count; i++) {
		if (dspp == m->dspp[i].id) {
			b->base_off = addr;
			b->blk_off = m->dspp[i].base;
			b->length = m->dspp[i].len;
			b->hwversion = m->hwversion;
			b->log_mask = SDE_DBG_MASK_DSPP;
			return &m->dspp[i];
		}
	}

	return ERR_PTR(-EINVAL);
}

static void dspp_igc(struct sde_hw_dspp *c)
{
	int ret = 0;

	if (c->cap->sblk->igc.version == SDE_COLOR_PROCESS_VER(0x3, 0x1)) {
		ret = reg_dmav1_init_dspp_op_v4(SDE_DSPP_IGC, c->idx);
		if (!ret)
			c->ops.setup_igc = reg_dmav1_setup_dspp_igcv31;
		else
			c->ops.setup_igc = sde_setup_dspp_igcv3;
	}
}

static void dspp_pcc(struct sde_hw_dspp *c)
{
	int ret = 0;

	if (c->cap->sblk->pcc.version == (SDE_COLOR_PROCESS_VER(0x1, 0x7)))
		c->ops.setup_pcc = sde_setup_dspp_pcc_v1_7;
	else if (c->cap->sblk->pcc.version ==
			(SDE_COLOR_PROCESS_VER(0x4, 0x0))) {
		ret = reg_dmav1_init_dspp_op_v4(SDE_DSPP_PCC, c->idx);
		if (!ret)
			c->ops.setup_pcc = reg_dmav1_setup_dspp_pccv4;
		else
			c->ops.setup_pcc = sde_setup_dspp_pccv4;
	}
}

static void dspp_gc(struct sde_hw_dspp *c)
{
	int ret = 0;

	if (c->cap->sblk->gc.version == SDE_COLOR_PROCESS_VER(0x1, 8)) {
		ret = reg_dmav1_init_dspp_op_v4(SDE_DSPP_GC, c->idx);
		if (!ret)
			c->ops.setup_gc = reg_dmav1_setup_dspp_gcv18;
		/**
		 * programming for v18 through ahb is same as v17,
		 * hence assign v17 function
		 */
		else
			c->ops.setup_gc = sde_setup_dspp_gc_v1_7;
	}
}

static void dspp_hsic(struct sde_hw_dspp *c)
{
	int ret = 0;

	if (c->cap->sblk->hsic.version == SDE_COLOR_PROCESS_VER(0x1, 0x7)) {
		ret = reg_dmav1_init_dspp_op_v4(SDE_DSPP_HSIC, c->idx);
		if (!ret)
			c->ops.setup_pa_hsic = reg_dmav1_setup_dspp_pa_hsicv17;
		else
			c->ops.setup_pa_hsic = sde_setup_dspp_pa_hsic_v17;
	}
}

static void dspp_memcolor(struct sde_hw_dspp *c)
{
	int ret = 0;

	if (c->cap->sblk->memcolor.version == SDE_COLOR_PROCESS_VER(0x1, 0x7)) {
		ret = reg_dmav1_init_dspp_op_v4(SDE_DSPP_MEMCOLOR, c->idx);
		if (!ret) {
			c->ops.setup_pa_memcol_skin =
				reg_dmav1_setup_dspp_memcol_skinv17;
			c->ops.setup_pa_memcol_sky =
				reg_dmav1_setup_dspp_memcol_skyv17;
			c->ops.setup_pa_memcol_foliage =
				reg_dmav1_setup_dspp_memcol_folv17;
			c->ops.setup_pa_memcol_prot =
				reg_dmav1_setup_dspp_memcol_protv17;
		} else {
			c->ops.setup_pa_memcol_skin =
				sde_setup_dspp_memcol_skin_v17;
			c->ops.setup_pa_memcol_sky =
				sde_setup_dspp_memcol_sky_v17;
			c->ops.setup_pa_memcol_foliage =
				sde_setup_dspp_memcol_foliage_v17;
			c->ops.setup_pa_memcol_prot =
				sde_setup_dspp_memcol_prot_v17;
		}
	}
}

static void dspp_sixzone(struct sde_hw_dspp *c)
{
	int ret = 0;

	if (c->cap->sblk->sixzone.version == SDE_COLOR_PROCESS_VER(0x1, 0x7)) {
		ret = reg_dmav1_init_dspp_op_v4(SDE_DSPP_SIXZONE, c->idx);
		if (!ret)
			c->ops.setup_sixzone = reg_dmav1_setup_dspp_sixzonev17;
		else
			c->ops.setup_sixzone = sde_setup_dspp_sixzone_v17;
	}
}

static void dspp_gamut(struct sde_hw_dspp *c)
{
	int ret = 0;

	if (c->cap->sblk->gamut.version == SDE_COLOR_PROCESS_VER(0x4, 0)) {
		ret = reg_dmav1_init_dspp_op_v4(SDE_DSPP_GAMUT, c->idx);
		if (!ret)
			c->ops.setup_gamut = reg_dmav1_setup_dspp_3d_gamutv4;
		else
			c->ops.setup_gamut = sde_setup_dspp_3d_gamutv4;
	} else if (c->cap->sblk->gamut.version ==
			SDE_COLOR_PROCESS_VER(0x4, 1)) {
		ret = reg_dmav1_init_dspp_op_v4(SDE_DSPP_GAMUT, c->idx);
		if (!ret)
			c->ops.setup_gamut = reg_dmav1_setup_dspp_3d_gamutv41;
		else
			c->ops.setup_gamut = sde_setup_dspp_3d_gamutv41;
	} else if (c->cap->sblk->gamut.version ==
			SDE_COLOR_PROCESS_VER(0x4, 2)) {
		ret = reg_dmav1_init_dspp_op_v4(SDE_DSPP_GAMUT, c->idx);
		c->ops.setup_gamut = NULL;
		if (!ret)
			c->ops.setup_gamut = reg_dmav1_setup_dspp_3d_gamutv42;
	}
}

static void dspp_dither(struct sde_hw_dspp *c)
{
	if (c->cap->sblk->dither.version == SDE_COLOR_PROCESS_VER(0x1, 0x7))
		c->ops.setup_pa_dither = sde_setup_dspp_dither_v1_7;
}

static void dspp_hist(struct sde_hw_dspp *c)
{
	if (c->cap->sblk->hist.version == (SDE_COLOR_PROCESS_VER(0x1, 0x7))) {
		c->ops.setup_histogram = sde_setup_dspp_hist_v1_7;
		c->ops.read_histogram = sde_read_dspp_hist_v1_7;
		c->ops.lock_histogram = sde_lock_dspp_hist_v1_7;
	}
}

static void dspp_vlut(struct sde_hw_dspp *c)
{
	int ret = 0;

	if (c->cap->sblk->vlut.version == (SDE_COLOR_PROCESS_VER(0x1, 0x7))) {
		c->ops.setup_vlut = sde_setup_dspp_pa_vlut_v1_7;
	} else if (c->cap->sblk->vlut.version ==
			(SDE_COLOR_PROCESS_VER(0x1, 0x8))) {
		ret = reg_dmav1_init_dspp_op_v4(SDE_DSPP_VLUT, c->idx);
		if (!ret)
			c->ops.setup_vlut = reg_dmav1_setup_dspp_vlutv18;
		else
			c->ops.setup_vlut = sde_setup_dspp_pa_vlut_v1_8;
	}
}

static void dspp_ad(struct sde_hw_dspp *c)
{
	if (c->cap->sblk->ad.version == SDE_COLOR_PROCESS_VER(4, 0)) {
		c->ops.setup_ad = sde_setup_dspp_ad4;
		c->ops.ad_read_intr_resp = sde_read_intr_resp_ad4;
		c->ops.validate_ad = sde_validate_dspp_ad4;
	}
}

static void dspp_ltm(struct sde_hw_dspp *c)
{
	int ret = 0;

	if (c->cap->sblk->ltm.version == SDE_COLOR_PROCESS_VER(0x1, 0x0)) {
		ret = reg_dmav1_init_ltm_op_v6(SDE_LTM_INIT, c->idx);
		if (!ret)
			ret = reg_dmav1_init_ltm_op_v6(SDE_LTM_ROI, c->idx);
		if (!ret)
			ret = reg_dmav1_init_ltm_op_v6(SDE_LTM_VLUT, c->idx);

		if (!ret) {
			c->ops.setup_ltm_init = reg_dmav1_setup_ltm_initv1;
			c->ops.setup_ltm_roi = reg_dmav1_setup_ltm_roiv1;
			c->ops.setup_ltm_vlut = reg_dmav1_setup_ltm_vlutv1;
		} else {
			c->ops.setup_ltm_init = NULL;
			c->ops.setup_ltm_roi = NULL;
			c->ops.setup_ltm_vlut = NULL;
		}
		c->ops.setup_ltm_thresh = sde_setup_dspp_ltm_threshv1;
		c->ops.setup_ltm_hist_ctrl = sde_setup_dspp_ltm_hist_ctrlv1;
		c->ops.setup_ltm_hist_buffer = sde_setup_dspp_ltm_hist_bufferv1;
		c->ops.ltm_read_intr_status = sde_ltm_read_intr_status;
	}
}

static void dspp_rc(struct sde_hw_dspp *c)
{
	int ret = 0;

	if (!c) {
		SDE_ERROR("invalid arguments\n");
		return;
	}

	if (c->cap->sblk->rc.version == SDE_COLOR_PROCESS_VER(0x1, 0x0)) {
		ret = sde_hw_rc_init(c);
		if (ret) {
			SDE_ERROR("rc init failed, ret %d\n", ret);
			return;
		}

		ret = reg_dmav1_init_dspp_op_v4(SDE_DSPP_RC, c->idx);
		if (!ret)
			c->ops.setup_rc_data =
					sde_hw_rc_setup_data_dma;
		else
			c->ops.setup_rc_data =
					sde_hw_rc_setup_data_ahb;

		c->ops.validate_rc_mask = sde_hw_rc_check_mask;
		c->ops.setup_rc_mask = sde_hw_rc_setup_mask;
		c->ops.validate_rc_pu_roi = sde_hw_rc_check_pu_roi;
		c->ops.setup_rc_pu_roi = sde_hw_rc_setup_pu_roi;
	}
}

static void (*dspp_blocks[SDE_DSPP_MAX])(struct sde_hw_dspp *c);

static void _init_dspp_ops(void)
{
	dspp_blocks[SDE_DSPP_IGC] = dspp_igc;
	dspp_blocks[SDE_DSPP_PCC] = dspp_pcc;
	dspp_blocks[SDE_DSPP_GC] = dspp_gc;
	dspp_blocks[SDE_DSPP_HSIC] = dspp_hsic;
	dspp_blocks[SDE_DSPP_MEMCOLOR] = dspp_memcolor;
	dspp_blocks[SDE_DSPP_SIXZONE] = dspp_sixzone;
	dspp_blocks[SDE_DSPP_GAMUT] = dspp_gamut;
	dspp_blocks[SDE_DSPP_DITHER] = dspp_dither;
	dspp_blocks[SDE_DSPP_HIST] = dspp_hist;
	dspp_blocks[SDE_DSPP_VLUT] = dspp_vlut;
	dspp_blocks[SDE_DSPP_AD] = dspp_ad;
	dspp_blocks[SDE_DSPP_LTM] = dspp_ltm;
	dspp_blocks[SDE_DSPP_RC] = dspp_rc;
}

static void _setup_dspp_ops(struct sde_hw_dspp *c, unsigned long features)
{
	int i = 0;

	if (!c->cap->sblk)
		return;

	for (i = 0; i < SDE_DSPP_MAX; i++) {
		if (!test_bit(i, &features))
			continue;
		if (dspp_blocks[i])
			dspp_blocks[i](c);
	}
}

static struct sde_hw_blk_ops sde_hw_ops = {
	.start = NULL,
	.stop = NULL,
};

struct sde_hw_dspp *sde_hw_dspp_init(enum sde_dspp idx,
			void __iomem *addr,
			struct sde_mdss_cfg *m)
{
	struct sde_hw_dspp *c;
	struct sde_dspp_cfg *cfg;
	int rc;
	char buf[256];

	if (!addr || !m)
		return ERR_PTR(-EINVAL);

	c = kzalloc(sizeof(*c), GFP_KERNEL);
	if (!c)
		return ERR_PTR(-ENOMEM);

	cfg = _dspp_offset(idx, m, addr, &c->hw);
	if (IS_ERR_OR_NULL(cfg)) {
		kfree(c);
		return ERR_PTR(-EINVAL);
	}

	/* Populate DSPP Top HW block */
	c->hw_top.base_off = addr;
	c->hw_top.blk_off = m->dspp_top.base;
	c->hw_top.length = m->dspp_top.len;
	c->hw_top.hwversion = m->hwversion;
	c->hw_top.log_mask = SDE_DBG_MASK_DSPP;

	/* Assign ops */
	c->idx = idx;
	c->cap = cfg;
	_init_dspp_ops();
	_setup_dspp_ops(c, c->cap->features);

	rc = sde_hw_blk_init(&c->base, SDE_HW_BLK_DSPP, idx, &sde_hw_ops);
	if (rc) {
		SDE_ERROR("failed to init hw blk %d\n", rc);
		goto blk_init_error;
	}

	sde_dbg_reg_register_dump_range(SDE_DBG_NAME, cfg->name, c->hw.blk_off,
			c->hw.blk_off + c->hw.length, c->hw.xin_id);

	if ((cfg->sblk->ltm.id == SDE_DSPP_LTM) && cfg->sblk->ltm.base) {
		sde_dbg_reg_register_dump_range(SDE_DBG_NAME, "LTM",
				c->hw.blk_off + cfg->sblk->ltm.base,
				c->hw.blk_off + cfg->sblk->ltm.base + 0xC4,
				c->hw.xin_id);
	}

	if ((cfg->sblk->rc.id == SDE_DSPP_RC) && cfg->sblk->rc.base) {
		snprintf(buf, ARRAY_SIZE(buf), "%s_%d", "rc", c->idx - DSPP_0);
		sde_dbg_reg_register_dump_range(SDE_DBG_NAME, buf,
				c->hw.blk_off + cfg->sblk->rc.base,
				c->hw.blk_off + cfg->sblk->rc.base +
				cfg->sblk->rc.len, c->hw.xin_id);
	}
	return c;

blk_init_error:
	kzfree(c);

	return ERR_PTR(rc);
}

void sde_hw_dspp_destroy(struct sde_hw_dspp *dspp)
{
	if (dspp) {
		reg_dmav1_deinit_dspp_ops(dspp->idx);
		reg_dmav1_deinit_ltm_ops(dspp->idx);
		sde_hw_blk_destroy(&dspp->base);
	}
	kfree(dspp);
}