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/*
* Copyright (C) 2012 Spreadtrum Communications Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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 <linux/kernel.h>
#include "sprdfb.h"
#include "sprdfb_panel.h"
#include "sprdfb_dispc_reg.h"
extern struct ops_mipi sprdfb_mipi_ops;
extern int32_t sprdfb_dsi_init(struct sprdfb_device *dev);
extern int32_t sprdfb_dsi_uninit(struct sprdfb_device *dev);
extern int32_t sprdfb_dsi_ready(struct sprdfb_device *dev);
extern int32_t sprdfb_dsi_suspend(struct sprdfb_device *dev);
extern int32_t sprdfb_dsi_resume(struct sprdfb_device *dev);
extern int32_t sprdfb_dsi_before_panel_reset(struct sprdfb_device *dev);
extern uint32_t sprdfb_dsi_get_status(struct sprdfb_device *dev);
extern int32_t sprdfb_dsi_enter_ulps(struct sprdfb_device *dev);
extern uint32_t rgb_calc_h_timing(struct timing_rgb *timing);
extern uint32_t rgb_calc_v_timing(struct timing_rgb *timing);
static uint32_t mipi_readid(struct panel_spec *self)
{
uint32_t id = 0;
return id;
}
static void mipi_dispc_init_config(struct panel_spec *panel)
{
uint32_t reg_val = dispc_read(DISPC_DPI_CTRL);
pr_debug("sprdfb: [%s]\n", __FUNCTION__);
if(NULL == panel){
printk(KERN_ERR "sprdfb: [%s] fail.(Invalid Param)\n", __FUNCTION__);
return;
}
if(SPRDFB_PANEL_TYPE_MIPI != panel->type){
printk(KERN_ERR "sprdfb: [%s] fail.(not mcu panel)\n", __FUNCTION__);
return;
}
if(SPRDFB_MIPI_MODE_CMD == panel->info.mipi->work_mode){
/*use edpi as interface*/
dispc_set_bits((1<<1), DISPC_CTRL);
}else{
/*use dpi as interface*/
dispc_clear_bits((3<<1), DISPC_CTRL);
}
/*h sync pol*/
if(SPRDFB_POLARITY_NEG == panel->info.mipi->h_sync_pol){
reg_val |= (1<<0);
}
/*v sync pol*/
if(SPRDFB_POLARITY_NEG == panel->info.mipi->v_sync_pol){
reg_val |= (1<<1);
}
/*de sync pol*/
if(SPRDFB_POLARITY_NEG == panel->info.mipi->de_pol){
reg_val |= (1<<2);
}
if(SPRDFB_MIPI_MODE_VIDEO == panel->info.mipi->work_mode){
#ifdef CONFIG_DPI_SINGLE_RUN
/*single run mode*/
reg_val |= (1<<3);
#endif
}else{
if(!(panel->cap & PANEL_CAP_NOT_TEAR_SYNC)){
printk("sprdfb: mipi_dispc_init_config not support TE\n");
/*enable te*/
reg_val |= (1<<8);
}
/*te pol*/
if(SPRDFB_POLARITY_NEG == panel->info.mipi->te_pol){
reg_val |= (1<<9);
}
/*use external te*/
reg_val |= (1<<10);
}
/*dpi bits*/
switch(panel->info.rgb->video_bus_width){
case 16:
break;
case 18:
reg_val |= (1 << 6);
break;
case 24:
reg_val |= (2 << 6);
break;
default:
break;
}
dispc_write(reg_val, DISPC_DPI_CTRL);
pr_debug("sprdfb: [%s] DISPC_DPI_CTRL = %d\n", __FUNCTION__, dispc_read(DISPC_DPI_CTRL));
}
static void mipi_dispc_set_timing(struct sprdfb_device *dev)
{
pr_debug("sprdfb: [%s]\n", __FUNCTION__);
dispc_write(dev->panel_timing.rgb_timing[RGB_LCD_H_TIMING], DISPC_DPI_H_TIMING);
dispc_write(dev->panel_timing.rgb_timing[RGB_LCD_V_TIMING], DISPC_DPI_V_TIMING);
}
static int32_t sprdfb_mipi_panel_check(struct panel_spec *panel)
{
if(NULL == panel){
printk("sprdfb: [%s] fail. (Invalid param)\n", __FUNCTION__);
return false;
}
if(SPRDFB_PANEL_TYPE_MIPI != panel->type){
printk("sprdfb: [%s] fail. (not mipi param)\n", __FUNCTION__);
return false;
}
pr_debug("sprdfb: [%s]\n",__FUNCTION__);
return true;
}
static void sprdfb_mipi_panel_mount(struct sprdfb_device *dev)
{
if((NULL == dev) || (NULL == dev->panel)){
printk(KERN_ERR "sprdfb: [%s]: Invalid Param\n", __FUNCTION__);
return;
}
pr_debug(KERN_INFO "sprdfb: [%s], dev_id = %d\n",__FUNCTION__, dev->dev_id);
if(SPRDFB_MIPI_MODE_CMD == dev->panel->info.mipi->work_mode){
dev->panel_if_type = SPRDFB_PANEL_IF_EDPI;
}else{
dev->panel_if_type = SPRDFB_PANEL_IF_DPI;
}
dev->panel->info.mipi->ops = &sprdfb_mipi_ops;
if(NULL == dev->panel->ops->panel_readid){
dev->panel->ops->panel_readid = mipi_readid;
}
dev->panel_timing.rgb_timing[RGB_LCD_H_TIMING] = rgb_calc_h_timing(dev->panel->info.mipi->timing);
dev->panel_timing.rgb_timing[RGB_LCD_V_TIMING] = rgb_calc_v_timing(dev->panel->info.mipi->timing);
}
static bool sprdfb_mipi_panel_init(struct sprdfb_device *dev)
{
sprdfb_dsi_init(dev);
mipi_dispc_init_config(dev->panel);
mipi_dispc_set_timing(dev);
return true;
}
static void sprdfb_mipi_panel_uninit(struct sprdfb_device *dev)
{
sprdfb_dsi_uninit(dev);
}
static void sprdfb_mipi_panel_ready(struct sprdfb_device *dev)
{
sprdfb_dsi_ready(dev);
}
static void sprdfb_mipi_panel_before_reset(struct sprdfb_device *dev)
{
sprdfb_dsi_before_panel_reset(dev);
}
static void sprdfb_mipi_panel_enter_ulps(struct sprdfb_device *dev)
{
sprdfb_dsi_enter_ulps(dev);
}
static void sprdfb_mipi_panel_suspend(struct sprdfb_device *dev)
{
printk(KERN_INFO "sprdfb: [%s], dev_id = %d\n",__FUNCTION__, dev->dev_id);
sprdfb_dsi_uninit(dev);
//sprdfb_dsi_suspend(dev);
}
static void sprdfb_mipi_panel_resume(struct sprdfb_device *dev)
{
printk(KERN_INFO "sprdfb: [%s], dev_id = %d\n",__FUNCTION__, dev->dev_id);
sprdfb_dsi_init(dev);
//sprdfb_dsi_resume(dev);
}
static uint32_t sprdfb_mipi_get_status(struct sprdfb_device *dev)
{
return sprdfb_dsi_get_status(dev);
}
struct panel_if_ctrl sprdfb_mipi_ctrl = {
.if_name = "mipi",
.panel_if_check = sprdfb_mipi_panel_check,
.panel_if_mount = sprdfb_mipi_panel_mount,
.panel_if_init = sprdfb_mipi_panel_init,
.panel_if_uninit = sprdfb_mipi_panel_uninit,
.panel_if_ready =sprdfb_mipi_panel_ready,
.panel_if_before_refresh = NULL,
.panel_if_after_refresh = NULL,
.panel_if_before_panel_reset = sprdfb_mipi_panel_before_reset,
.panel_if_enter_ulps = sprdfb_mipi_panel_enter_ulps,
.panel_if_suspend = sprdfb_mipi_panel_suspend,
.panel_if_resume = sprdfb_mipi_panel_resume,
.panel_if_get_status = sprdfb_mipi_get_status,
};
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