/* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *   * Neither the name of The Linux Foundation nor
 *     the names of its contributors may be used to endorse or promote
 *     products derived from this software without specific prior written
 *     permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <mdp5.h>
#include <debug.h>
#include <reg.h>
#include <target/display.h>
#include <platform/timer.h>
#include <platform/iomap.h>
#include <dev/lcdc.h>
#include <dev/fbcon.h>
#include <bits.h>
#include <msm_panel.h>
#include <mipi_dsi.h>
#include <err.h>
#include <clock.h>
#include <mdp5.h>
#include <scm.h>

int restore_secure_cfg(uint32_t id);

static int mdp_rev;

void mdp_set_revision(int rev)
{
	mdp_rev = rev;
}

int mdp_get_revision()
{
	return mdp_rev;
}

void mdp_clk_gating_ctrl(void)
{
	writel(0x40000000, MDP_CLK_CTRL0);
	udelay(20);
	writel(0x40000040, MDP_CLK_CTRL0);
	writel(0x40000000, MDP_CLK_CTRL1);
	writel(0x00400000, MDP_CLK_CTRL3);
	udelay(20);
	writel(0x00404000, MDP_CLK_CTRL3);
	writel(0x40000000, MDP_CLK_CTRL4);
}

int mdp_dsi_video_config(struct msm_panel_info *pinfo,
		struct fbcon_config *fb)
{
	int ret = NO_ERROR;
	uint32_t hsync_period, vsync_period;
	uint32_t hsync_start_x, hsync_end_x;
	uint32_t display_hctl, active_hctl, hsync_ctl, display_vstart, display_vend;
	struct lcdc_panel_info *lcdc = NULL;
	unsigned mdp_rgb_size;
	int access_secure = 0;

	if (pinfo == NULL)
		return ERR_INVALID_ARGS;

	lcdc =  &(pinfo->lcdc);
	if (lcdc == NULL)
		return ERR_INVALID_ARGS;

	hsync_period = lcdc->h_pulse_width +
		lcdc->h_back_porch +
		pinfo->xres + lcdc->xres_pad + lcdc->h_front_porch;
	vsync_period = (lcdc->v_pulse_width +
			lcdc->v_back_porch +
			pinfo->yres + lcdc->yres_pad +
			lcdc->v_front_porch);

	hsync_start_x =
		lcdc->h_pulse_width +
		lcdc->h_back_porch;
	hsync_end_x =
		hsync_period - lcdc->h_front_porch - 1;

	display_vstart = (lcdc->v_pulse_width +
			lcdc->v_back_porch)
		* hsync_period + lcdc->hsync_skew;
	display_vend = ((vsync_period - lcdc->v_front_porch) * hsync_period)
		+lcdc->hsync_skew - 1;

	hsync_ctl = (hsync_period << 16) | lcdc->h_pulse_width;
	display_hctl = (hsync_end_x << 16) | hsync_start_x;

	/* write active region size*/
	mdp_rgb_size = (fb->height << 16) + fb->width;

	access_secure = restore_secure_cfg(SECURE_DEVICE_MDSS);

	mdp_clk_gating_ctrl();

	if (!access_secure) {
		/* Force VBIF Clocks on  */
		writel(0x1, VBIF_VBIF_DDR_FORCE_CLK_ON);
		/* Configure DDR burst length */
		writel(0x00000707, VBIF_VBIF_DDR_OUT_MAX_BURST);
	}

	/* Allocate SMP blocks */
	writel(0x00101010, MMSS_MDP_SMP_ALLOC_W_0);
	writel(0x00000010, MMSS_MDP_SMP_ALLOC_W_1);
	writel(0x00101010, MMSS_MDP_SMP_ALLOC_R_0);
	writel(0x00000010, MMSS_MDP_SMP_ALLOC_R_1);

	writel(hsync_ctl, MDP_INTF_1_HSYNC_CTL);
	writel(vsync_period*hsync_period, MDP_INTF_1_VSYNC_PERIOD_F0);
	writel(0x00, MDP_INTF_1_VSYNC_PERIOD_F1);
	writel(lcdc->v_pulse_width*hsync_period, MDP_INTF_1_VSYNC_PULSE_WIDTH_F0);
	writel(0x00, MDP_INTF_1_VSYNC_PULSE_WIDTH_F1);
	writel(display_hctl, MDP_INTF_1_DISPLAY_HCTL);
	writel(display_vstart, MDP_INTF_1_DISPLAY_V_START_F0);
	writel(0x00, MDP_INTF_1_DISPLAY_V_START_F1);
	writel(display_vend, MDP_INTF_1_DISPLAY_V_END_F0);
	writel(0x00, MDP_INTF_1_DISPLAY_V_END_F1);
	writel(0x00, MDP_INTF_1_ACTIVE_HCTL);
	writel(0x00, MDP_INTF_1_ACTIVE_V_START_F0);
	writel(0x00, MDP_INTF_1_ACTIVE_V_START_F1);
	writel(0x00, MDP_INTF_1_ACTIVE_V_END_F0);
	writel(0x00, MDP_INTF_1_ACTIVE_V_END_F1);
	writel(0xFF, MDP_INTF_1_UNDERFFLOW_COLOR);

	writel(fb->base, MDP_VP_0_RGB_0_SSPP_SRC0_ADDR);
	writel((fb->stride * fb->bpp/8),MDP_VP_0_RGB_0_SSPP_SRC_YSTRIDE);
	writel(mdp_rgb_size, MDP_VP_0_RGB_0_SSPP_SRC_IMG_SIZE);
	writel(mdp_rgb_size, MDP_VP_0_RGB_0_SSPP_SRC_SIZE);
	writel(mdp_rgb_size, MDP_VP_0_RGB_0_SSPP_SRC_OUT_SIZE);
	writel(0x00, MDP_VP_0_RGB_0_SSPP_SRC_XY);
	writel(0x00, MDP_VP_0_RGB_0_SSPP_OUT_XY);
	/* Tight Packing 3bpp 0-Alpha 8-bit R B G */
	writel(0x0002243F, MDP_VP_0_RGB_0_SSPP_SRC_FORMAT);
	writel(0x00020001, MDP_VP_0_RGB_0_SSPP_SRC_UNPACK_PATTERN);
	writel(0x00, MDP_VP_0_RGB_0_SSPP_SRC_OP_MODE);

	writel(mdp_rgb_size,MDP_VP_0_LAYER_0_OUT_SIZE);
	writel(0x00, MDP_VP_0_LAYER_0_OP_MODE);
	writel(0x100, MDP_VP_0_LAYER_0_BLEND_OP);
	writel(0xFF, MDP_VP_0_LAYER_0_BLEND0_FG_ALPHA);
	writel(0x100, MDP_VP_0_LAYER_1_BLEND_OP);
	writel(0xFF, MDP_VP_0_LAYER_1_BLEND0_FG_ALPHA);
	writel(0x100, MDP_VP_0_LAYER_2_BLEND_OP);
	writel(0xFF, MDP_VP_0_LAYER_2_BLEND0_FG_ALPHA);
	writel(0x100, MDP_VP_0_LAYER_3_BLEND_OP);
	writel(0xFF, MDP_VP_0_LAYER_3_BLEND0_FG_ALPHA);

	/* Baselayer for layer mixer 0 */
	writel(0x010000200, MDP_CTL_0_LAYER_0);

	writel(0x1F20, MDP_CTL_0_TOP);
	writel(0x213F, MDP_INTF_1_PANEL_FORMAT);

	writel(0x0100, MDP_DISP_INTF_SEL);
	writel(0x1111, MDP_VIDEO_INTF_UNDERFLOW_CTL);
	writel(0x01, MDP_UPPER_NEW_ROI_PRIOR_RO_START);
	writel(0x01, MDP_LOWER_NEW_ROI_PRIOR_TO_START);

	return 0;
}

int mdp_dsi_cmd_config(struct msm_panel_info *pinfo,
                struct fbcon_config *fb)
{

	int ret = 0;
	return ret;
}

int mdp_dsi_video_on(void)
{
	int ret = NO_ERROR;
	writel(0x32048, MDP_CTL_0_FLUSH);
	writel(0x01, MDP_INTF_1_TIMING_ENGINE_EN);
	return ret;
}

int mdp_dsi_video_off()
{
	if(!target_cont_splash_screen())
	{
		writel(0x00000000, MDP_INTF_1_TIMING_ENGINE_EN);
		mdelay(60);
		/* Ping-Pong done Tear Check Read/Write  */
		/* Underrun(Interface 0/1/2/3) VSYNC Interrupt Enable  */
		writel(0xFF777713, MDP_INTR_CLEAR);
	}

	writel(0x00000000, MDP_INTR_EN);

	return NO_ERROR;
}

int mdp_dsi_cmd_off()
{
	return NO_ERROR;
}

int mdp_dma_on(void)
{
	return NO_ERROR;
}

void mdp_disable(void)
{

}