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/* Copyright (c) 2013-2014, 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 AND FITNESS
* FOR A PARTICULAR PURPOSE 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 <debug.h>
#include <err.h>
#include <smem.h>
#include <msm_panel.h>
#include <string.h>
#include <stdlib.h>
#include <board.h>
#include <mdp5.h>
#include <platform/gpio.h>
#include <mipi_dsi.h>
#include "include/display_resource.h"
#include "include/panel.h"
#include "panel_display.h"
#include "gcdb_display.h"
#include "target/display.h"
#include "gcdb_autopll.h"
/*---------------------------------------------------------------------------*/
/* static */
/*---------------------------------------------------------------------------*/
static struct msm_fb_panel_data panel;
struct panel_struct panelstruct;
static uint8_t display_enable;
static struct mdss_dsi_phy_ctrl dsi_video_mode_phy_db;
/*---------------------------------------------------------------------------*/
/* Extern */
/*---------------------------------------------------------------------------*/
extern int msm_display_init(struct msm_fb_panel_data *pdata);
extern int msm_display_off();
static uint32_t panel_backlight_ctrl(uint8_t enable)
{
return target_backlight_ctrl(panelstruct.backlightinfo, enable);
}
static uint32_t mdss_dsi_panel_reset(uint8_t enable)
{
uint32_t ret = NO_ERROR;
ret = target_panel_reset(enable, panelstruct.panelresetseq,
&panel.panel_info);
return ret;
}
static uint32_t mdss_dsi_panel_clock(uint8_t enable,
struct msm_panel_info *pinfo)
{
uint32_t ret = NO_ERROR;
ret = calculate_clock_config(pinfo);
if (ret) {
dprintf(CRITICAL, "Clock calculation failed \n");
/* should it stop here ? check with display team */
}
ret = target_panel_clock(enable, pinfo);
return ret;
}
static int mdss_dsi_panel_power(uint8_t enable)
{
int ret = NO_ERROR;
if (enable) {
ret = target_ldo_ctrl(enable);
if (ret) {
dprintf(CRITICAL, "LDO control enable failed \n");
return ret;
}
mdelay(10);
/* Panel Reset */
ret = mdss_dsi_panel_reset(enable);
if (ret) {
dprintf(CRITICAL, "panel reset failed \n");
return ret;
}
dprintf(SPEW, "Panel power on done\n");
} else {
/* Disable panel and ldo */
ret = mdss_dsi_panel_reset(enable);
if (ret) {
dprintf(CRITICAL, "panel reset disable failed \n");
return ret;
}
ret = target_ldo_ctrl(enable);
if (ret) {
dprintf(CRITICAL, "ldo control disable failed \n");
return ret;
}
dprintf(SPEW, "Panel power off done\n");
}
return ret;
}
static int mdss_dsi_panel_pre_init(void)
{
int ret = NO_ERROR;
if (panelstruct.paneldata->panel_lp11_init) {
ret = mdss_dsi_panel_reset(1);
if (ret) {
dprintf(CRITICAL, "panel reset failed\n");
return ret;
}
}
if(panelstruct.paneldata->panel_init_delay)
udelay(panelstruct.paneldata->panel_init_delay);
dprintf(SPEW, "Panel pre init done\n");
return ret;
}
static int mdss_dsi_bl_enable(uint8_t enable)
{
int ret = NO_ERROR;
ret = panel_backlight_ctrl(enable);
if (ret)
dprintf(CRITICAL, "Backlight %s failed\n", enable ? "enable" :
"disable");
return ret;
}
bool target_display_panel_node(char *pbuf, uint16_t buf_size)
{
char *dsi_id = NULL;
char *panel_node = NULL;
char *slave_panel_node = NULL;
uint16_t dsi_id_len = 0, panel_node_len = 0, slave_panel_node_len = 0;
uint32_t arg_size = 0;
bool ret = true;
char *default_str;
int panel_mode = SPLIT_DISPLAY_FLAG | DUAL_PIPE_FLAG;
if(panelstruct.paneldata && target_cont_splash_screen())
{
dsi_id = panelstruct.paneldata->panel_controller;
panel_node = panelstruct.paneldata->panel_node_id;
panel_mode = panelstruct.paneldata->panel_operating_mode &
panel_mode;
slave_panel_node = panelstruct.paneldata->slave_panel_node_id;
}
else
{
if (target_is_edp())
{
default_str = "1:edp:";
}
else
{
default_str = "0:dsi:0:";
}
strlcpy(pbuf, default_str, buf_size);
return true;
}
if (dsi_id == NULL || panel_node == NULL) {
dprintf(CRITICAL, "panel node or dsi ctrl not present\n");
return false;
}
if (panel_mode && slave_panel_node == NULL) {
dprintf(CRITICAL, "slave node not present in dual dsi case\n");
return false;
}
dsi_id_len = strlen(dsi_id);
panel_node_len = strlen(panel_node);
slave_panel_node_len = strlen(slave_panel_node);
arg_size = dsi_id_len + panel_node_len + LK_OVERRIDE_PANEL_LEN + 1;
/* For dual pipe or split display */
if (panel_mode)
arg_size += DSI_1_STRING_LEN + slave_panel_node_len;
if (buf_size < arg_size)
{
dprintf(CRITICAL, "display command line buffer is small\n");
ret = false;
}
else
{
strlcpy(pbuf, LK_OVERRIDE_PANEL, buf_size);
pbuf += LK_OVERRIDE_PANEL_LEN;
buf_size -= LK_OVERRIDE_PANEL_LEN;
strlcpy(pbuf, dsi_id, buf_size);
pbuf += dsi_id_len;
buf_size -= dsi_id_len;
strlcpy(pbuf, panel_node, buf_size);
/* Return string for single dsi */
if (!panel_mode)
goto end;
pbuf += panel_node_len;
buf_size -= panel_node_len;
strlcpy(pbuf, DSI_1_STRING, buf_size);
pbuf += DSI_1_STRING_LEN;
buf_size -= DSI_1_STRING_LEN;
strlcpy(pbuf, slave_panel_node, buf_size);
}
end:
return ret;
}
static void init_platform_data()
{
memcpy(dsi_video_mode_phy_db.regulator, panel_regulator_settings,
REGULATOR_SIZE);
memcpy(dsi_video_mode_phy_db.ctrl, panel_physical_ctrl,
PHYSICAL_SIZE);
memcpy(dsi_video_mode_phy_db.strength, panel_strength_ctrl,
STRENGTH_SIZE);
memcpy(dsi_video_mode_phy_db.bistCtrl, panel_bist_ctrl, BIST_SIZE);
memcpy(dsi_video_mode_phy_db.laneCfg, panel_lane_config, LANE_SIZE);
}
int gcdb_display_init(const char *panel_name, uint32_t rev, void *base)
{
int ret = NO_ERROR;
if (!oem_panel_select(panel_name, &panelstruct, &(panel.panel_info),
&dsi_video_mode_phy_db)) {
dprintf(CRITICAL, "Target panel init not found!\n");
ret = ERR_NOT_SUPPORTED;
goto error_gcdb_display_init;
}
init_platform_data();
if (dsi_panel_init(&(panel.panel_info), &panelstruct)) {
dprintf(CRITICAL, "DSI panel init failed!\n");
ret = ERROR;
goto error_gcdb_display_init;
}
panel.panel_info.mipi.mdss_dsi_phy_db = &dsi_video_mode_phy_db;
panel.pll_clk_func = mdss_dsi_panel_clock;
panel.power_func = mdss_dsi_panel_power;
panel.pre_init_func = mdss_dsi_panel_pre_init;
panel.bl_func = mdss_dsi_bl_enable;
panel.fb.base = base;
panel.fb.width = panel.panel_info.xres;
panel.fb.height = panel.panel_info.yres;
panel.fb.stride = panel.panel_info.xres;
panel.fb.bpp = panel.panel_info.bpp;
panel.fb.format = panel.panel_info.mipi.dst_format;
panel.mdp_rev = rev;
ret = msm_display_init(&panel);
error_gcdb_display_init:
display_enable = ret ? 0 : 1;
return ret;
}
void gcdb_display_shutdown(void)
{
if (display_enable)
msm_display_off();
}