/* Copyright (c) 2012, The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */

#include "msm_fb.h"
#include "mipi_dsi.h"
#include "mipi_orise.h"
#include "mdp4.h"


static struct mipi_dsi_panel_platform_data *mipi_orise_pdata;

static struct dsi_buf orise_tx_buf;
static struct dsi_buf orise_rx_buf;

static char enter_sleep[2] = {0x10, 0x00}; /* DTYPE_DCS_WRITE */
static char exit_sleep[2] = {0x11, 0x00}; /* DTYPE_DCS_WRITE */
static char display_off[2] = {0x28, 0x00}; /* DTYPE_DCS_WRITE */
static char display_on[2] = {0x29, 0x00}; /* DTYPE_DCS_WRITE */

static struct dsi_cmd_desc orise_video_on_cmds[] = {
	{DTYPE_DCS_WRITE, 1, 0, 0, 10,
		sizeof(exit_sleep), exit_sleep},
	{DTYPE_DCS_WRITE, 1, 0, 0, 10,
		sizeof(display_on), display_on},
};

static struct dsi_cmd_desc orise_cmd_on_cmds[] = {
	{DTYPE_DCS_WRITE, 1, 0, 0, 10,
		sizeof(exit_sleep), exit_sleep},
	{DTYPE_DCS_WRITE, 1, 0, 0, 10,
		sizeof(display_on), display_on},
};

static struct dsi_cmd_desc orise_display_off_cmds[] = {
	{DTYPE_DCS_WRITE, 1, 0, 0, 10,
		sizeof(display_off), display_off},
	{DTYPE_DCS_WRITE, 1, 0, 0, 120,
		sizeof(enter_sleep), enter_sleep}
};

static int mipi_orise_lcd_on(struct platform_device *pdev)
{
	struct msm_fb_data_type *mfd;
	struct mipi_panel_info *mipi;
	struct msm_panel_info *pinfo;
	struct dcs_cmd_req cmdreq;

	mfd = platform_get_drvdata(pdev);
	if (!mfd)
		return -ENODEV;
	if (mfd->key != MFD_KEY)
		return -EINVAL;

	pinfo = &mfd->panel_info;
	mipi  = &mfd->panel_info.mipi;

	memset(&cmdreq, 0, sizeof(cmdreq));
	if (mipi->mode == DSI_VIDEO_MODE) {
		cmdreq.cmds = orise_video_on_cmds;
		cmdreq.cmds_cnt = ARRAY_SIZE(orise_video_on_cmds);
		cmdreq.flags = CMD_REQ_COMMIT;
		cmdreq.rlen = 0;
		cmdreq.cb = NULL;
		mipi_dsi_cmdlist_put(&cmdreq);
	} else {
		cmdreq.cmds = orise_cmd_on_cmds;
		cmdreq.cmds_cnt = ARRAY_SIZE(orise_cmd_on_cmds);
		cmdreq.flags = CMD_REQ_COMMIT;
		cmdreq.rlen = 0;
		cmdreq.cb = NULL;
		mipi_dsi_cmdlist_put(&cmdreq);

		mipi_dsi_cmd_bta_sw_trigger(); /* clean up ack_err_status */
	}

	return 0;
}

static int mipi_orise_lcd_off(struct platform_device *pdev)
{
	struct msm_fb_data_type *mfd;
	struct dcs_cmd_req cmdreq;

	mfd = platform_get_drvdata(pdev);

	if (!mfd)
		return -ENODEV;
	if (mfd->key != MFD_KEY)
		return -EINVAL;

	memset(&cmdreq, 0, sizeof(cmdreq));
	cmdreq.cmds = orise_display_off_cmds;
	cmdreq.cmds_cnt = ARRAY_SIZE(orise_display_off_cmds);
	cmdreq.flags = CMD_REQ_COMMIT;
	cmdreq.rlen = 0;
	cmdreq.cb = NULL;
	mipi_dsi_cmdlist_put(&cmdreq);

	return 0;
}



static int __devinit mipi_orise_lcd_probe(struct platform_device *pdev)
{
	struct msm_fb_data_type *mfd;
	struct mipi_panel_info *mipi;
	struct platform_device *current_pdev;
	static struct mipi_dsi_phy_ctrl *phy_settings;

	if (pdev->id == 0) {
		mipi_orise_pdata = pdev->dev.platform_data;

		if (mipi_orise_pdata
			&& mipi_orise_pdata->phy_ctrl_settings) {
			phy_settings = (mipi_orise_pdata->phy_ctrl_settings);
		}

		return 0;
	}

	current_pdev = msm_fb_add_device(pdev);

	if (current_pdev) {
		mfd = platform_get_drvdata(current_pdev);
		if (!mfd)
			return -ENODEV;
		if (mfd->key != MFD_KEY)
			return -EINVAL;

		mipi  = &mfd->panel_info.mipi;

		if (phy_settings != NULL)
			mipi->dsi_phy_db = phy_settings;
	}
	return 0;
}

static struct platform_driver this_driver = {
	.probe  = mipi_orise_lcd_probe,
	.driver = {
		.name   = "mipi_orise",
	},
};

static struct msm_fb_panel_data orise_panel_data = {
	.on		= mipi_orise_lcd_on,
	.off		= mipi_orise_lcd_off,
};

static int ch_used[3];

int mipi_orise_device_register(struct msm_panel_info *pinfo,
					u32 channel, u32 panel)
{
	struct platform_device *pdev = NULL;
	int ret;

	if ((channel >= 3) || ch_used[channel])
		return -ENODEV;

	ch_used[channel] = TRUE;

	pdev = platform_device_alloc("mipi_orise", (panel << 8)|channel);
	if (!pdev)
		return -ENOMEM;

	orise_panel_data.panel_info = *pinfo;

	ret = platform_device_add_data(pdev, &orise_panel_data,
		sizeof(orise_panel_data));
	if (ret) {
		printk(KERN_ERR
		  "%s: platform_device_add_data failed!\n", __func__);
		goto err_device_put;
	}

	ret = platform_device_add(pdev);
	if (ret) {
		printk(KERN_ERR
		  "%s: platform_device_register failed!\n", __func__);
		goto err_device_put;
	}

	return 0;

err_device_put:
	platform_device_put(pdev);
	return ret;
}

static int __init mipi_orise_lcd_init(void)
{
	mipi_dsi_buf_alloc(&orise_tx_buf, DSI_BUF_SIZE);
	mipi_dsi_buf_alloc(&orise_rx_buf, DSI_BUF_SIZE);

	return platform_driver_register(&this_driver);
}

module_init(mipi_orise_lcd_init);