/*
* drivers/video/rockchip/chips/rk2928_lcdc.c
*
* Copyright (C) 2012 ROCKCHIP, Inc.
*Author:yzq<yzq@rock-chips.com>
* yxj<yxj@rock-chips.com>
*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/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/device.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/earlysuspend.h>
#include <asm/div64.h>
#include <asm/uaccess.h>
#include <mach/iomux.h>
#include <mach/gpio.h>
#include "rk2928_lcdc.h"
#include "../transmitter/rk2928_lvds.h"
static int dbg_thresd = 0;
module_param(dbg_thresd, int, S_IRUGO|S_IWUSR);
#define DBG(level,x...) do { if(unlikely(dbg_thresd >= level)) printk(KERN_INFO x); } while (0)
//rk2928 lcdc iomux,mode:0,gpio,1 lcdc io
static int rk2928_lcdc_iomux(rk_screen *screen,int mode)
{
int ret = 0;
int i=0;
if((screen->type == SCREEN_RGB)&&(mode)) //iomux for RGB screen
{
for(i=0;i<8;i++)
{
gpio_free(RK2928_PIN2_PB0 + i);
}
for(i=0;i<4;i++)
{
gpio_free(RK2928_PIN2_PC0 + i);
}
if(screen->lcdc_id == 0)
{
rk30_mux_api_set(GPIO2B0_LCDC0_DCLK_LCDC1_DCLK_NAME, GPIO2B_LCDC0_DCLK);
rk30_mux_api_set(GPIO2B1_LCDC0_HSYNC_LCDC1_HSYNC_NAME, GPIO2B_LCDC0_HSYNC);
rk30_mux_api_set(GPIO2B2_LCDC0_VSYNC_LCDC1_VSYNC_NAME, GPIO2B_LCDC0_VSYNC);
rk30_mux_api_set(GPIO2B3_LCDC0_DEN_LCDC1_DEN_NAME, GPIO2B_LCDC0_DEN);
rk30_mux_api_set(GPIO2B4_LCDC0_D10_LCDC1_D10_NAME, GPIO2B_LCDC0_D10);
rk30_mux_api_set(GPIO2B5_LCDC0_D11_LCDC1_D11_NAME, GPIO2B_LCDC0_D11);
rk30_mux_api_set(GPIO2B6_LCDC0_D12_LCDC1_D12_NAME, GPIO2B_LCDC0_D12);
rk30_mux_api_set(GPIO2B7_LCDC0_D13_LCDC1_D13_NAME, GPIO2B_LCDC0_D13);
rk30_mux_api_set(GPIO2C0_LCDC0_D14_LCDC1_D14_NAME, GPIO2C_LCDC0_D14);
rk30_mux_api_set(GPIO2C1_LCDC0_D15_LCDC1_D15_NAME, GPIO2C_LCDC0_D15);
rk30_mux_api_set(GPIO2C2_LCDC0_D16_LCDC1_D16_NAME, GPIO2C_LCDC0_D16);
rk30_mux_api_set(GPIO2C3_LCDC0_D17_LCDC1_D17_NAME, GPIO2C_LCDC0_D17);
}
else if(screen->lcdc_id == 1)
{
rk30_mux_api_set(GPIO2B0_LCDC0_DCLK_LCDC1_DCLK_NAME, GPIO2B_LCDC1_DCLK);
rk30_mux_api_set(GPIO2B1_LCDC0_HSYNC_LCDC1_HSYNC_NAME, GPIO2B_LCDC1_HSYNC);
rk30_mux_api_set(GPIO2B2_LCDC0_VSYNC_LCDC1_VSYNC_NAME, GPIO2B_LCDC1_VSYNC);
rk30_mux_api_set(GPIO2B3_LCDC0_DEN_LCDC1_DEN_NAME, GPIO2B_LCDC1_DEN);
rk30_mux_api_set(GPIO2B4_LCDC0_D10_LCDC1_D10_NAME, GPIO2B_LCDC1_D10);
rk30_mux_api_set(GPIO2B5_LCDC0_D11_LCDC1_D11_NAME, GPIO2B_LCDC1_D11);
rk30_mux_api_set(GPIO2B6_LCDC0_D12_LCDC1_D12_NAME, GPIO2B_LCDC1_D12);
rk30_mux_api_set(GPIO2B7_LCDC0_D13_LCDC1_D13_NAME, GPIO2B_LCDC1_D13);
rk30_mux_api_set(GPIO2C0_LCDC0_D14_LCDC1_D14_NAME, GPIO2C_LCDC1_D14);
rk30_mux_api_set(GPIO2C1_LCDC0_D15_LCDC1_D15_NAME, GPIO2C_LCDC1_D15);
rk30_mux_api_set(GPIO2C2_LCDC0_D16_LCDC1_D16_NAME, GPIO2C_LCDC1_D16);
rk30_mux_api_set(GPIO2C3_LCDC0_D17_LCDC1_D17_NAME, GPIO2C_LCDC1_D17);
}
else
{
printk(KERN_WARNING "%s>>>no such interface:%d\n",__func__,screen->lcdc_id);
return -1;
}
}
else if((screen->type == SCREEN_RGB)&&(!mode))
{
rk30_mux_api_set(GPIO2B0_LCDC0_DCLK_LCDC1_DCLK_NAME, GPIO2B_GPIO2B0 );
rk30_mux_api_set(GPIO2B1_LCDC0_HSYNC_LCDC1_HSYNC_NAME,GPIO2B_GPIO2B1);
rk30_mux_api_set(GPIO2B2_LCDC0_VSYNC_LCDC1_VSYNC_NAME, GPIO2B_GPIO2B2);
rk30_mux_api_set(GPIO2B3_LCDC0_DEN_LCDC1_DEN_NAME, GPIO2B_GPIO2B3);
rk30_mux_api_set(GPIO2B4_LCDC0_D10_LCDC1_D10_NAME, GPIO2B_GPIO2B4 );
rk30_mux_api_set(GPIO2B5_LCDC0_D11_LCDC1_D11_NAME, GPIO2B_GPIO2B5 );
rk30_mux_api_set(GPIO2B6_LCDC0_D12_LCDC1_D12_NAME, GPIO2B_GPIO2B6 );
rk30_mux_api_set(GPIO2B7_LCDC0_D13_LCDC1_D13_NAME, GPIO2B_GPIO2B7 );
rk30_mux_api_set(GPIO2C0_LCDC0_D14_LCDC1_D14_NAME, GPIO2C_GPIO2C0);
rk30_mux_api_set(GPIO2C1_LCDC0_D15_LCDC1_D15_NAME, GPIO2C_GPIO2C1);
rk30_mux_api_set(GPIO2C2_LCDC0_D16_LCDC1_D16_NAME, GPIO2C_GPIO2C2);
rk30_mux_api_set(GPIO2C3_LCDC0_D17_LCDC1_D17_NAME, GPIO2C_GPIO2C3);
for(i=0;i<8;i++)
{
ret += gpio_request(RK2928_PIN2_PB0 + i, NULL);
gpio_direction_output(RK2928_PIN2_PB0 + i, 0);
}
for(i=0;i<4;i++)
{
ret += gpio_request(RK2928_PIN2_PC0 + i, NULL);
gpio_direction_output(RK2928_PIN2_PC0 + i, 0);
}
if(ret < 0)
{
printk("%s:some gpio request fail\n",__func__);
}
}
return 0;
}
static int init_rk2928_lcdc(struct rk_lcdc_device_driver *dev_drv)
{
struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
if(lcdc_dev->id == 0) //lcdc0
{
lcdc_dev->hclk = clk_get(NULL,"hclk_lcdc0");
lcdc_dev->aclk = clk_get(NULL,"aclk_lcdc0");
lcdc_dev->dclk = clk_get(NULL,"dclk_lcdc0");
lcdc_dev->sclk = clk_get(NULL,"sclk_lcdc0");
}
else
{
printk(KERN_ERR "invalid lcdc device!\n");
return -EINVAL;
}
if (IS_ERR(lcdc_dev->sclk) || (IS_ERR(lcdc_dev->aclk)) ||(IS_ERR(lcdc_dev->dclk)) || (IS_ERR(lcdc_dev->hclk)))
{
printk(KERN_ERR "failed to get lcdc%d clk source\n",lcdc_dev->id);
}
clk_enable(lcdc_dev->pd);
clk_enable(lcdc_dev->hclk); //enable aclk and hclk for register config
clk_enable(lcdc_dev->aclk);
lcdc_dev->clk_on = 1;
LcdSetBit(lcdc_dev,SYS_CFG, m_LCDC_AXICLK_AUTO_ENABLE);//eanble axi-clk auto gating for low power
LcdMskReg(lcdc_dev,INT_STATUS,m_FRM_START_INT_CLEAR | m_BUS_ERR_INT_CLEAR | m_LINE_FLAG_INT_EN |
m_FRM_START_INT_EN | m_HOR_START_INT_EN,v_FRM_START_INT_CLEAR(1) | v_BUS_ERR_INT_CLEAR(0) |
v_LINE_FLAG_INT_EN(0) | v_FRM_START_INT_EN(0) | v_HOR_START_INT_EN(0)); //enable frame start interrupt for sync
//LCDC_REG_CFG_DONE(); // write any value to REG_CFG_DONE let config become effective
return 0;
}
static int rk2928_lcdc_deinit(struct rk2928_lcdc_device *lcdc_dev)
{
spin_lock(&lcdc_dev->reg_lock);
if(likely(lcdc_dev->clk_on))
{
lcdc_dev->clk_on = 0;
LcdMskReg(lcdc_dev, INT_STATUS, m_FRM_START_INT_CLEAR, v_FRM_START_INT_CLEAR(1));
LcdMskReg(lcdc_dev, INT_STATUS, m_HOR_START_INT_EN | m_FRM_START_INT_EN |
m_LINE_FLAG_INT_EN | m_BUS_ERR_INT_EN,v_HOR_START_INT_EN(0) | v_FRM_START_INT_EN(0) |
v_LINE_FLAG_INT_EN(0) | v_BUS_ERR_INT_EN(0)); //disable all lcdc interrupt
LcdSetBit(lcdc_dev,SYS_CFG,m_LCDC_STANDBY);
LCDC_REG_CFG_DONE();
spin_unlock(&lcdc_dev->reg_lock);
}
else //clk already disabled
{
spin_unlock(&lcdc_dev->reg_lock);
return 0;
}
mdelay(1);
return 0;
}
static int rk2928_load_screen(struct rk_lcdc_device_driver *dev_drv, bool initscreen)
{
int ret = -EINVAL;
struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
rk_screen *screen = dev_drv->cur_screen;
rk_screen *screen0 = dev_drv->screen0;
u64 ft;
int fps;
u16 face;
u16 right_margin = screen->right_margin;
u16 lower_margin = screen->lower_margin;
u16 x_res = screen->x_res, y_res = screen->y_res;
DBG(1,"left_margin:%d>>hsync_len:%d>>xres:%d>>right_margin:%d>>upper_margin:%d>>vsync_len:%d>>yres:%d>>lower_margin:%d\n",
screen->left_margin,screen->hsync_len,screen->x_res,screen->right_margin,screen->upper_margin,screen->vsync_len,screen->y_res,
screen->lower_margin);
// set the rgb or mcu
spin_lock(&lcdc_dev->reg_lock);
if(likely(lcdc_dev->clk_on))
{
if(screen->type==SCREEN_MCU)
{
printk(KERN_ERR "MCU Screen is not supported by RK2928\n");
}
switch (screen->face)
{
case OUT_P565:
face = OUT_P565;
LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(0));
break;
case OUT_P666:
face = OUT_P666;
LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(1));
break;
case OUT_D888_P565:
face = OUT_P888;
LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(0));
break;
case OUT_D888_P666:
face = OUT_P888;
LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(1));
break;
case OUT_P888:
face = OUT_P888;
LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_UP_EN, v_DITHER_UP_EN(0));
LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(0) | v_DITHER_DOWN_MODE(0));
break;
default:
LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_UP_EN, v_DITHER_UP_EN(0));
LcdMskReg(lcdc_dev, DSP_CTRL, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(0) | v_DITHER_DOWN_MODE(0));
face = screen->face;
break;
}
//use default overlay,set vsyn hsync den dclk polarity
LcdMskReg(lcdc_dev, DSP_CTRL,m_DISPLAY_FORMAT | m_HSYNC_POLARITY | m_VSYNC_POLARITY |
m_DEN_POLARITY |m_DCLK_POLARITY | m_OUTPUT_RB_SWAP | m_OUTPUT_RG_SWAP | m_BLACK_MODE,
v_DISPLAY_FORMAT(face) | v_HSYNC_POLARITY(screen->pin_hsync) |
v_VSYNC_POLARITY(screen->pin_vsync) | v_DEN_POLARITY(screen->pin_den) |
v_DCLK_POLARITY(screen->pin_dclk) | v_OUTPUT_RB_SWAP(screen->swap_rb) |
v_OUTPUT_RG_SWAP(screen->swap_rg) |v_BLACK_MODE(0));
//set background color to black,set swap according to the screen panel,disable blank mode
LcdMskReg(lcdc_dev, BG_COLOR, m_BG_COLOR ,v_BG_COLOR(0x000000));
LcdWrReg(lcdc_dev, DSP_HTOTAL_HS_END,v_HSYNC(screen->hsync_len) |
v_HORPRD(screen->hsync_len + screen->left_margin + x_res + right_margin));
LcdWrReg(lcdc_dev, DSP_HACT_ST_END, v_HAEP(screen->hsync_len + screen->left_margin + x_res) |
v_HASP(screen->hsync_len + screen->left_margin));
LcdWrReg(lcdc_dev, DSP_VTOTAL_VS_END, v_VSYNC(screen->vsync_len) |
v_VERPRD(screen->vsync_len + screen->upper_margin + y_res + lower_margin));
LcdWrReg(lcdc_dev, DSP_VACT_ST_END, v_VAEP(screen->vsync_len + screen->upper_margin+y_res)|
v_VASP(screen->vsync_len + screen->upper_margin));
#if defined(CONFIG_ONE_LCDC_DUAL_OUTPUT_INF)
if(dev_drv->screen0->lcdc_id == 1)
{
//set register for scaller
LcdMskReg(lcdc_dev,SCL_REG0,m_SCL_DSP_ZERO | m_SCL_DEN_INVERT |
m_SCL_SYNC_INVERT | m_SCL_DCLK_INVERT | m_SCL_EN,v_SCL_DSP_ZERO(0) |
v_SCL_DEN_INVERT(screen0->s_den_inv) | v_SCL_SYNC_INVERT(screen0->s_hv_sync_inv) |
v_SCL_DCLK_INVERT(screen0->s_clk_inv) | v_SCL_EN(1));
LcdWrReg(lcdc_dev,SCL_REG2,v_HASP(screen0->s_vsync_st) | v_HAEP(screen0->s_hsync_st));
LcdWrReg(lcdc_dev,SCL_REG3,v_HASP(screen0->s_hsync_len) |
v_HAEP(screen0->s_hsync_len + screen0->s_left_margin +
screen0->x_res + screen0->s_right_margin));
LcdWrReg(lcdc_dev,SCL_REG4,v_HASP(screen0->s_hsync_len + screen0->s_left_margin) |
v_HAEP(screen0->s_hsync_len + screen0->s_left_margin + screen0->x_res));
LcdWrReg(lcdc_dev,SCL_REG5,v_VASP(screen0->s_vsync_len) |
v_VAEP(screen0->s_vsync_len + screen0->s_upper_margin +
screen0->y_res + screen0->s_lower_margin));
LcdWrReg(lcdc_dev,SCL_REG6,v_VASP(screen0->s_vsync_len +
screen0->s_upper_margin) | v_VAEP(screen0->s_vsync_len +
screen0->s_upper_margin + screen0->y_res ));
LcdWrReg(lcdc_dev,SCL_REG8,v_VASP(screen0->s_vsync_len + screen0->s_upper_margin) |
v_VAEP(screen0->s_vsync_len + screen0->s_upper_margin + screen0->y_res));
LcdWrReg(lcdc_dev,SCL_REG7,v_HASP(screen0->s_hsync_len + screen0->s_left_margin) |
v_HAEP(screen0->s_hsync_len + screen0->s_left_margin + screen0->x_res ));
LcdWrReg(lcdc_dev,SCL_REG1,v_SCL_V_FACTOR(0x1000)|v_SCL_H_FACTOR(0x1000));
}
#endif
// let above to take effect
//LCDC_REG_CFG_DONE();
}
spin_unlock(&lcdc_dev->reg_lock);
#ifdef CONFIG_RK2928_LVDS
rk_lvds_register(dev_drv->screen0);
#endif
if(dev_drv->screen0->type == SCREEN_RGB) //iomux for RGB screen
{
if(dev_drv->screen0->lcdc_id == 0)
{
rk30_mux_api_set(GPIO2B0_LCDC0_DCLK_LCDC1_DCLK_NAME, GPIO2B_LCDC0_DCLK);
rk30_mux_api_set(GPIO2B1_LCDC0_HSYNC_LCDC1_HSYNC_NAME, GPIO2B_LCDC0_HSYNC);
rk30_mux_api_set(GPIO2B2_LCDC0_VSYNC_LCDC1_VSYNC_NAME, GPIO2B_LCDC0_VSYNC);
rk30_mux_api_set(GPIO2B3_LCDC0_DEN_LCDC1_DEN_NAME, GPIO2B_LCDC0_DEN);
rk30_mux_api_set(GPIO2B4_LCDC0_D10_LCDC1_D10_NAME, GPIO2B_LCDC0_D10);
rk30_mux_api_set(GPIO2B5_LCDC0_D11_LCDC1_D11_NAME, GPIO2B_LCDC0_D11);
rk30_mux_api_set(GPIO2B6_LCDC0_D12_LCDC1_D12_NAME, GPIO2B_LCDC0_D12);
rk30_mux_api_set(GPIO2B7_LCDC0_D13_LCDC1_D13_NAME, GPIO2B_LCDC0_D13);
rk30_mux_api_set(GPIO2C0_LCDC0_D14_LCDC1_D14_NAME, GPIO2C_LCDC0_D14);
rk30_mux_api_set(GPIO2C1_LCDC0_D15_LCDC1_D15_NAME, GPIO2C_LCDC0_D15);
rk30_mux_api_set(GPIO2C2_LCDC0_D16_LCDC1_D16_NAME, GPIO2C_LCDC0_D16);
rk30_mux_api_set(GPIO2C3_LCDC0_D17_LCDC1_D17_NAME, GPIO2C_LCDC0_D17);
}
else if(dev_drv->screen0->lcdc_id == 1)
{
rk30_mux_api_set(GPIO2B0_LCDC0_DCLK_LCDC1_DCLK_NAME, GPIO2B_LCDC1_DCLK);
rk30_mux_api_set(GPIO2B1_LCDC0_HSYNC_LCDC1_HSYNC_NAME, GPIO2B_LCDC1_HSYNC);
rk30_mux_api_set(GPIO2B2_LCDC0_VSYNC_LCDC1_VSYNC_NAME, GPIO2B_LCDC1_VSYNC);
rk30_mux_api_set(GPIO2B3_LCDC0_DEN_LCDC1_DEN_NAME, GPIO2B_LCDC1_DEN);
rk30_mux_api_set(GPIO2B4_LCDC0_D10_LCDC1_D10_NAME, GPIO2B_LCDC1_D10);
rk30_mux_api_set(GPIO2B5_LCDC0_D11_LCDC1_D11_NAME, GPIO2B_LCDC1_D11);
rk30_mux_api_set(GPIO2B6_LCDC0_D12_LCDC1_D12_NAME, GPIO2B_LCDC1_D12);
rk30_mux_api_set(GPIO2B7_LCDC0_D13_LCDC1_D13_NAME, GPIO2B_LCDC1_D13);
rk30_mux_api_set(GPIO2C0_LCDC0_D14_LCDC1_D14_NAME, GPIO2C_LCDC1_D14);
rk30_mux_api_set(GPIO2C1_LCDC0_D15_LCDC1_D15_NAME, GPIO2C_LCDC1_D15);
rk30_mux_api_set(GPIO2C2_LCDC0_D16_LCDC1_D16_NAME, GPIO2C_LCDC1_D16);
rk30_mux_api_set(GPIO2C3_LCDC0_D17_LCDC1_D17_NAME, GPIO2C_LCDC1_D17);
}
else
{
printk(KERN_WARNING "%s>>>no such interface:%d\n",__func__,dev_drv->cur_screen->lcdc_id);
return -1;
}
//rk30_mux_api_set(GPIO2C4_LCDC0_D18_LCDC1_D18_I2C2_SDA_NAME, GPIO2C_LCDC1_D18);
//rk30_mux_api_set(GPIO2C5_LCDC0_D19_LCDC1_D19_I2C2_SCL_NAME, GPIO2C_LCDC1_D19);
//rk30_mux_api_set(GPIO2C6_LCDC0_D20_LCDC1_D20_UART2_SIN_NAME, GPIO2C_LCDC1_D20);
//rk30_mux_api_set(GPIO2C7_LCDC0_D21_LCDC1_D21_UART2_SOUT_NAME, GPIO2C_LCDC1_D21);
//rk30_mux_api_set(GPIO2D0_LCDC0_D22_LCDC1_D22_NAME, GPIO2D_LCDC1_D22);
//rk30_mux_api_set(GPIO2D1_LCDC0_D23_LCDC1_D23_NAME, GPIO2D_LCDC1_D23);
printk("RGB screen connect to rk2928 lcdc interface%d\n",dev_drv->screen0->lcdc_id);
}
ret = clk_set_rate(lcdc_dev->dclk, screen->pixclock);
if(ret)
{
printk(KERN_ERR ">>>>>> set lcdc%d dclk failed\n",lcdc_dev->id);
}
lcdc_dev->driver.pixclock = lcdc_dev->pixclock = div_u64(1000000000000llu, clk_get_rate(lcdc_dev->dclk));
clk_enable(lcdc_dev->dclk);
#if defined(CONFIG_ONE_LCDC_DUAL_OUTPUT_INF)
if(dev_drv->screen0->lcdc_id == 1) //if connect to output interface 1,need scale
{
ret = clk_set_rate(lcdc_dev->sclk, screen0->s_pixclock);
if(ret)
{
printk(KERN_ERR ">>>>>> set lcdc%d sclk failed\n",lcdc_dev->id);
}
//lcdc_dev->driver.pixclock = lcdc_dev->pixclock = div_u64(1000000000000llu, clk_get_rate(lcdc_dev->sclk));
//printk("%s: sclk:%lu>>need:%d",lcdc_dev->driver.name,,screen0->s_pixclock);
clk_enable(lcdc_dev->sclk);
}
#endif
ft = (u64)(screen->upper_margin + screen->lower_margin + screen->y_res +screen->vsync_len)*
(screen->left_margin + screen->right_margin + screen->x_res + screen->hsync_len)*
(dev_drv->pixclock); // one frame time ,(pico seconds)
fps = div64_u64(1000000000000llu,ft);
screen->ft = 1000/fps;
printk("%s: dclk:%lu>>fps:%d ",lcdc_dev->driver.name,clk_get_rate(lcdc_dev->dclk),
fps);
if(screen->init)
{
screen->init();
}
printk("%s for lcdc%d ok!\n",__func__,lcdc_dev->id);
return 0;
}
//enable layer,open:1,enable;0 disable
static int win0_open(struct rk2928_lcdc_device *lcdc_dev,bool open)
{
spin_lock(&lcdc_dev->reg_lock);
if(likely(lcdc_dev->clk_on))
{
if(open)
{
if(!lcdc_dev->atv_layer_cnt)
{
LcdClrBit(lcdc_dev, SYS_CFG,m_LCDC_STANDBY);
}
lcdc_dev->atv_layer_cnt++;
}
else
{
lcdc_dev->atv_layer_cnt--;
}
lcdc_dev->driver.layer_par[0]->state = open;
LcdMskReg(lcdc_dev, SYS_CFG, m_W0_EN, v_W0_EN(open));
if(!lcdc_dev->atv_layer_cnt) //if no layer used,disable lcdc
{
LcdSetBit(lcdc_dev, SYS_CFG,m_LCDC_STANDBY);
}
//LCDC_REG_CFG_DONE();
}
spin_unlock(&lcdc_dev->reg_lock);
printk(KERN_INFO "lcdc%d win0 %s\n",lcdc_dev->id,open?"open":"closed");
return 0;
}
static int win1_open(struct rk2928_lcdc_device *lcdc_dev,bool open)
{
spin_lock(&lcdc_dev->reg_lock);
if(likely(lcdc_dev->clk_on))
{
if(open)
{
if(!lcdc_dev->atv_layer_cnt)
{
printk("lcdc%d wakeup from stanby\n",lcdc_dev->id);
LcdClrBit(lcdc_dev, SYS_CFG,m_LCDC_STANDBY);
}
lcdc_dev->atv_layer_cnt++;
}
else
{
lcdc_dev->atv_layer_cnt--;
}
lcdc_dev->driver.layer_par[1]->state = open;
LcdMskReg(lcdc_dev, SYS_CFG, m_W1_EN, v_W1_EN(open));
if(!lcdc_dev->atv_layer_cnt) //if no layer used,disable lcdc
{
printk(KERN_INFO "no layer of lcdc%d is used,go to standby!",lcdc_dev->id);
LcdSetBit(lcdc_dev, SYS_CFG,m_LCDC_STANDBY);
}
//LCDC_REG_CFG_DONE();
}
spin_unlock(&lcdc_dev->reg_lock);
printk(KERN_INFO "lcdc%d win1 %s\n",lcdc_dev->id,open?"open":"closed");
return 0;
}
static int rk2928_lcdc_blank(struct rk_lcdc_device_driver*lcdc_drv,int layer_id,int blank_mode)
{
struct rk2928_lcdc_device * lcdc_dev = container_of(lcdc_drv,struct rk2928_lcdc_device ,driver);
printk(KERN_INFO "%s>>>>>%d\n",__func__, blank_mode);
spin_lock(&lcdc_dev->reg_lock);
if(likely(lcdc_dev->clk_on))
{
switch(blank_mode)
{
case FB_BLANK_UNBLANK:
LcdMskReg(lcdc_dev,DSP_CTRL,m_BLANK_MODE ,v_BLANK_MODE(0));
break;
case FB_BLANK_NORMAL:
LcdMskReg(lcdc_dev,DSP_CTRL,m_BLANK_MODE ,v_BLANK_MODE(1));
break;
default:
LcdMskReg(lcdc_dev,DSP_CTRL,m_BLANK_MODE ,v_BLANK_MODE(1));
break;
}
LCDC_REG_CFG_DONE();
}
spin_unlock(&lcdc_dev->reg_lock);
return 0;
}
static int win0_display(struct rk2928_lcdc_device *lcdc_dev,struct layer_par *par )
{
u32 y_addr;
u32 uv_addr;
y_addr = par->smem_start + par->y_offset;
uv_addr = par->cbr_start + par->c_offset;
DBG(2,KERN_INFO "lcdc%d>>%s:y_addr:0x%x>>uv_addr:0x%x\n",lcdc_dev->id,__func__,y_addr,uv_addr);
spin_lock(&lcdc_dev->reg_lock);
if(likely(lcdc_dev->clk_on))
{
LcdWrReg(lcdc_dev, WIN0_YRGB_MST,y_addr);
LcdWrReg(lcdc_dev, WIN0_CBR_MST,uv_addr);
LCDC_REG_CFG_DONE();
}
spin_unlock(&lcdc_dev->reg_lock);
return 0;
}
static int win1_display(struct rk2928_lcdc_device *lcdc_dev,struct layer_par *par )
{
u32 y_addr;
u32 uv_addr;
y_addr = par->smem_start + par->y_offset;
uv_addr = par->cbr_start + par->c_offset;
DBG(2,KERN_INFO "lcdc%d>>%s>>y_addr:0x%x>>uv_addr:0x%x\n",lcdc_dev->id,__func__,y_addr,uv_addr);
spin_lock(&lcdc_dev->reg_lock);
if(likely(lcdc_dev->clk_on))
{
LcdWrReg(lcdc_dev, WIN1_RGB_MST, y_addr);
LCDC_REG_CFG_DONE();
}
spin_unlock(&lcdc_dev->reg_lock);
return 0;
}
static int win0_set_par(struct rk2928_lcdc_device *lcdc_dev,rk_screen *screen,
struct layer_par *par )
{
u32 xact, yact, xvir, yvir, xpos, ypos;
u32 ScaleYrgbX = 0x1000;
u32 ScaleYrgbY = 0x1000;
u32 ScaleCbrX = 0x1000;
u32 ScaleCbrY = 0x1000;
u8 fmt_cfg = 0;
xact = par->xact; //active (origin) picture window width/height
yact = par->yact;
xvir = par->xvir; // virtual resolution
yvir = par->yvir;
xpos = par->xpos+screen->left_margin + screen->hsync_len;
ypos = par->ypos+screen->upper_margin + screen->vsync_len;
ScaleYrgbX = CalScale(xact, par->xsize); //both RGB and yuv need this two factor
ScaleYrgbY = CalScale(yact, par->ysize);
DBG(1,"%s for lcdc%d>>format:%d>>>xact:%d>>yact:%d>>xsize:%d>>ysize:%d>>xvir:%d>>yvir:%d>>xpos:%d>>ypos:%d>>\n",
__func__,lcdc_dev->id,par->format,xact,yact,par->xsize,par->ysize,xvir,yvir,xpos,ypos);
switch (par->format)
{
case XBGR888:
case ABGR888:
case ARGB888:
fmt_cfg = 0;
break;
case RGB888:
fmt_cfg = 1;
break;
case RGB565:
fmt_cfg = 2;
break;
case YUV422:// yuv422
fmt_cfg = 5;
ScaleCbrX = CalScale((xact/2), par->xsize);
ScaleCbrY = CalScale(yact, par->ysize);
break;
case YUV420: // yuv420
fmt_cfg = 4;
ScaleCbrX = CalScale(xact/2, par->xsize);
ScaleCbrY = CalScale(yact/2, par->ysize);
break;
case YUV444:// yuv444
fmt_cfg = 6;
ScaleCbrX = CalScale(xact, par->xsize);
ScaleCbrY = CalScale(yact, par->ysize);
break;
default:
printk("%s:un supported format\n",__func__);
break;
}
spin_lock(&lcdc_dev->reg_lock);
if(likely(lcdc_dev->clk_on))
{
LcdWrReg(lcdc_dev, WIN0_SCL_FACTOR_YRGB, v_X_SCL_FACTOR(ScaleYrgbX) | v_Y_SCL_FACTOR(ScaleYrgbY));
LcdWrReg(lcdc_dev, WIN0_SCL_FACTOR_CBR,v_X_SCL_FACTOR(ScaleCbrX)| v_Y_SCL_FACTOR(ScaleCbrY));
LcdMskReg(lcdc_dev, SYS_CFG, m_W0_FORMAT, v_W0_FORMAT(fmt_cfg)); //(inf->video_mode==0)
LcdWrReg(lcdc_dev, WIN0_ACT_INFO,v_ACT_WIDTH(xact) | v_ACT_HEIGHT(yact));
LcdWrReg(lcdc_dev, WIN0_DSP_ST, v_DSP_STX(xpos) | v_DSP_STY(ypos));
LcdWrReg(lcdc_dev, WIN0_DSP_INFO, v_DSP_WIDTH(par->xsize)| v_DSP_HEIGHT(par->ysize));
LcdMskReg(lcdc_dev,WIN0_COLOR_KEY_CTRL, m_COLORKEY_EN | m_KEYCOLOR,
v_COLORKEY_EN(1) | v_KEYCOLOR(0));
switch(par->format)
{
case XBGR888:
LcdMskReg(lcdc_dev, WIN_VIR,m_WIN0_VIR,v_WIN0_ARGB888_VIRWIDTH(xvir));
LcdMskReg(lcdc_dev,SYS_CFG,m_W0_RGB_RB_SWAP,v_W1_RGB_RB_SWAP(1));
break;
case ARGB888:
LcdMskReg(lcdc_dev,WIN_VIR,m_WIN0_VIR,v_WIN0_ARGB888_VIRWIDTH(xvir));
LcdMskReg(lcdc_dev,SYS_CFG,m_W0_RGB_RB_SWAP,v_W1_RGB_RB_SWAP(0));
break;
case ABGR888:
LcdMskReg(lcdc_dev,WIN_VIR,m_WIN0_VIR,v_WIN0_ARGB888_VIRWIDTH(xvir));
LcdMskReg(lcdc_dev,SYS_CFG,m_W0_RGB_RB_SWAP,v_W1_RGB_RB_SWAP(1));
break;
case RGB888: //rgb888
LcdMskReg(lcdc_dev,WIN_VIR,m_WIN0_VIR,v_WIN0_RGB888_VIRWIDTH(xvir));
LcdMskReg(lcdc_dev,SYS_CFG,m_W0_RGB_RB_SWAP,v_W0_RGB_RB_SWAP(0));
break;
case RGB565: //rgb565
LcdMskReg(lcdc_dev,WIN_VIR,m_WIN0_VIR,v_WIN0_RGB565_VIRWIDTH(xvir));
LcdMskReg(lcdc_dev,DSP_CTRL,m_W0_RGB_RB_SWAP,v_W0_RGB_RB_SWAP(0));
break;
case YUV422:
case YUV420:
LcdMskReg(lcdc_dev,WIN_VIR,m_WIN0_VIR,v_WIN0_YUV_VIRWIDTH(xvir));
LcdMskReg(lcdc_dev,SYS_CFG,m_W0_RGB_RB_SWAP,v_W0_RGB_RB_SWAP(0));
break;
default:
printk("%s:un supported format\n",__func__);
break;
}
LCDC_REG_CFG_DONE();
}
spin_unlock(&lcdc_dev->reg_lock);
return 0;
}
static int win1_set_par(struct rk2928_lcdc_device *lcdc_dev,rk_screen *screen,
struct layer_par *par )
{
u32 xact, yact, xvir, yvir, xpos, ypos;
u32 ScaleYrgbX = 0x1000;
u32 ScaleYrgbY = 0x1000;
u32 ScaleCbrX = 0x1000;
u32 ScaleCbrY = 0x1000;
u8 fmt_cfg = 0;
xact = par->xact;
yact = par->yact;
xvir = par->xvir;
yvir = par->yvir;
xpos = par->xpos+screen->left_margin + screen->hsync_len;
ypos = par->ypos+screen->upper_margin + screen->vsync_len;
DBG(1,"%s for lcdc%d>>format:%d>>>xact:%d>>yact:%d>>xsize:%d>>ysize:%d>>xvir:%d>>yvir:%d>>xpos:%d>>ypos:%d>>\n",
__func__,lcdc_dev->id,par->format,xact,yact,par->xsize,par->ysize,xvir,yvir,xpos,ypos);
spin_lock(&lcdc_dev->reg_lock);
if(likely(lcdc_dev->clk_on))
{
LcdWrReg(lcdc_dev, WIN1_DSP_ST,v_DSP_STX(xpos) | v_DSP_STY(ypos));
LcdWrReg(lcdc_dev, WIN1_DSP_INFO,v_DSP_WIDTH(par->xsize) | v_DSP_HEIGHT(par->ysize));
// enable win1 color key and set the color to black(rgb=0)
LcdMskReg(lcdc_dev, WIN1_COLOR_KEY_CTRL, m_COLORKEY_EN | m_KEYCOLOR,v_COLORKEY_EN(1) | v_KEYCOLOR(0));
switch(par->format)
{
case XBGR888:
fmt_cfg = 0;
LcdMskReg(lcdc_dev,WIN_VIR,m_WIN1_VIR,v_WIN1_ARGB888_VIRWIDTH(xvir));
LcdMskReg(lcdc_dev,SYS_CFG,m_W1_RGB_RB_SWAP,v_W1_RGB_RB_SWAP(1));
break;
case ABGR888:
fmt_cfg = 0;
LcdMskReg(lcdc_dev,WIN_VIR,m_WIN1_VIR,v_WIN1_ARGB888_VIRWIDTH(xvir));
LcdMskReg(lcdc_dev,SYS_CFG,m_W1_RGB_RB_SWAP,v_W1_RGB_RB_SWAP(1));
break;
case ARGB888:
fmt_cfg = 0;
LcdMskReg(lcdc_dev,WIN_VIR,m_WIN1_VIR,v_WIN1_ARGB888_VIRWIDTH(xvir));
LcdMskReg(lcdc_dev,SYS_CFG,m_W1_RGB_RB_SWAP,v_W1_RGB_RB_SWAP(0));
break;
case RGB888: //rgb888
fmt_cfg = 1;
LcdMskReg(lcdc_dev,WIN_VIR,m_WIN1_VIR,v_WIN1_RGB888_VIRWIDTH(xvir));
LcdMskReg(lcdc_dev,DSP_CTRL,m_W1_RGB_RB_SWAP,v_W1_RGB_RB_SWAP(0));
break;
case RGB565: //rgb565
fmt_cfg = 2;
LcdMskReg(lcdc_dev,WIN_VIR,m_WIN1_VIR,v_WIN1_RGB565_VIRWIDTH(xvir));
LcdMskReg(lcdc_dev,SYS_CFG,m_W1_RGB_RB_SWAP,v_W1_RGB_RB_SWAP(0));
break;
default:
printk("%s:un supported format\n",__func__);
break;
}
LcdMskReg(lcdc_dev,SYS_CFG, m_W1_FORMAT, v_W1_FORMAT(fmt_cfg));
//LCDC_REG_CFG_DONE();
}
spin_unlock(&lcdc_dev->reg_lock);
return 0;
}
static int rk2928_lcdc_open(struct rk_lcdc_device_driver *dev_drv,int layer_id,bool open)
{
struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
if(open)
{
rk2928_load_screen(dev_drv,1);
}
if(layer_id == 0)
{
win0_open(lcdc_dev,open);
}
else if(layer_id == 1)
{
win1_open(lcdc_dev,open);
}
return 0;
}
static int rk2928_lcdc_set_par(struct rk_lcdc_device_driver *dev_drv,int layer_id)
{
struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
struct layer_par *par = NULL;
rk_screen *screen = dev_drv->cur_screen;
rk_screen *screen0 = dev_drv->screen0;
u32 Scl_X = 0x1000;
u32 Scl_Y = 0x1000;
if(!screen)
{
printk(KERN_ERR "screen is null!\n");
return -ENOENT;
}
if(layer_id==0)
{
par = dev_drv->layer_par[0];
win0_set_par(lcdc_dev,screen,par);
}
else if(layer_id==1)
{
par = dev_drv->layer_par[1];
win1_set_par(lcdc_dev,screen,par);
}
Scl_X = CalScale(screen->x_res - 1,screen0->x_res - 1);
if((screen->y_res-1)/(screen0->x_res -1) < 2)
{
Scl_Y = CalScale(screen->y_res - 1 ,screen0->y_res - 1);
}
else
{
Scl_Y = CalScale(screen->y_res - 2 ,screen0->y_res - 1);
}
LcdWrReg(lcdc_dev,SCL_REG1,v_SCL_V_FACTOR(Scl_Y)|v_SCL_H_FACTOR(Scl_X));
return 0;
}
int rk2928_lcdc_pan_display(struct rk_lcdc_device_driver * dev_drv,int layer_id)
{
struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
struct layer_par *par = NULL;
rk_screen *screen = dev_drv->cur_screen;
unsigned long flags;
int timeout;
if(!screen)
{
printk(KERN_ERR "screen is null!\n");
return -ENOENT;
}
if(layer_id==0)
{
par = dev_drv->layer_par[0];
win0_display(lcdc_dev,par);
}
else if(layer_id==1)
{
par = dev_drv->layer_par[1];
win1_display(lcdc_dev,par);
}
if((dev_drv->first_frame)) //this is the first frame of the system ,enable frame start interrupt
{
dev_drv->first_frame = 0;
LcdMskReg(lcdc_dev,INT_STATUS,m_FRM_START_INT_CLEAR |m_FRM_START_INT_EN ,
v_FRM_START_INT_CLEAR(1) | v_FRM_START_INT_EN(1));
LCDC_REG_CFG_DONE(); // write any value to REG_CFG_DONE let config become effective
}
if(dev_drv->num_buf < 3) //3buffer ,no need to wait for sysn
{
spin_lock_irqsave(&dev_drv->cpl_lock,flags);
init_completion(&dev_drv->frame_done);
spin_unlock_irqrestore(&dev_drv->cpl_lock,flags);
timeout = wait_for_completion_timeout(&dev_drv->frame_done,msecs_to_jiffies(dev_drv->cur_screen->ft+5));
if(!timeout&&(!dev_drv->frame_done.done))
{
//printk(KERN_ERR "wait for new frame start time out!\n");
return -ETIMEDOUT;
}
}
return 0;
}
int rk2928_lcdc_ioctl(struct rk_lcdc_device_driver * dev_drv,unsigned int cmd, unsigned long arg,int layer_id)
{
struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
u32 panel_size[2];
void __user *argp = (void __user *)arg;
int ret = 0;
switch(cmd)
{
case RK_FBIOGET_PANEL_SIZE: //get panel size
panel_size[0] = dev_drv->screen0->x_res;
panel_size[1] = dev_drv->screen0->y_res;
if(copy_to_user(argp, panel_size, 8))
return -EFAULT;
break;
default:
break;
}
return ret;
}
static int rk2928_lcdc_get_layer_state(struct rk_lcdc_device_driver *dev_drv,int layer_id)
{
struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
struct layer_par *par = dev_drv->layer_par[layer_id];
spin_lock(&lcdc_dev->reg_lock);
if(lcdc_dev->clk_on)
{
if(layer_id == 0)
{
par->state = LcdReadBit(lcdc_dev,SYS_CFG,m_W0_EN);
}
else if( layer_id == 1)
{
par->state = LcdReadBit(lcdc_dev,SYS_CFG,m_W1_EN);
}
}
spin_unlock(&lcdc_dev->reg_lock);
return par->state;
}
/***********************************
overlay manager
swap:1 win0 on the top of win1
0 win1 on the top of win0
set : 1 set overlay
0 get overlay state
************************************/
static int rk2928_lcdc_ovl_mgr(struct rk_lcdc_device_driver *dev_drv,int swap,bool set)
{
struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
int ovl;
spin_lock(&lcdc_dev->reg_lock);
if(lcdc_dev->clk_on)
{
if(set) //set overlay
{
LcdMskReg(lcdc_dev,DSP_CTRL,m_W0W1_POSITION_SWAP,v_W0W1_POSITION_SWAP(swap));
LCDC_REG_CFG_DONE();
ovl = swap;
}
else //get overlay
{
ovl = LcdReadBit(lcdc_dev,DSP_CTRL,m_W0W1_POSITION_SWAP);
}
}
else
{
ovl = -EPERM;
}
spin_unlock(&lcdc_dev->reg_lock);
return ovl;
}
static ssize_t dump_win0_disp_info(struct rk2928_lcdc_device *lcdc_dev,char *buf)
{
char format[9] = "NULL";
u32 fmt_id = LcdRdReg(lcdc_dev,SYS_CFG);
u32 xvir,act_info,dsp_info,dsp_st,factor;
u16 x_act,y_act,x_dsp,y_dsp,x_factor,y_factor;
u16 x_scale,y_scale;
switch((fmt_id&m_W0_FORMAT)>>3)
{
case 0:
strcpy(format,"ARGB888");
break;
case 1:
strcpy(format,"RGB888");
break;
case 2:
strcpy(format,"RGB565");
break;
case 4:
strcpy(format,"YCbCr422");
break;
case 5:
strcpy(format,"YCbCr420");
break;
case 6:
strcpy(format,"YCbCr444");
break;
default:
strcpy(format,"inval\n");
break;
}
xvir = LcdRdReg(lcdc_dev,WIN_VIR)&0xffff;
act_info = LcdRdReg(lcdc_dev,WIN0_ACT_INFO);
dsp_info = LcdRdReg(lcdc_dev,WIN0_DSP_INFO);
dsp_st = LcdRdReg(lcdc_dev,WIN0_DSP_ST);
factor = LcdRdReg(lcdc_dev,WIN0_SCL_FACTOR_YRGB);
x_act = (act_info&0xffff) + 1;
y_act = (act_info>>16) + 1;
x_dsp = (dsp_info&0xffff) + 1;
y_dsp = (dsp_info>>16) + 1;
x_factor = factor&0xffff;
y_factor = factor>>16;
x_scale = 4096*100/x_factor;
y_scale = 4096*100/y_factor;
return snprintf(buf,PAGE_SIZE,"xvir:%d\nxact:%d\nyact:%d\nxdsp:%d\nydsp:%d\nx_st:%d\ny_st:%d\nx_scale:%d.%d\ny_scale:%d.%d\nformat:%s\n",
xvir,x_act,y_act,x_dsp,y_dsp,dsp_st&0xffff,dsp_st>>16,x_scale/100,x_scale%100,y_scale/100,y_scale%100,format);
}
static ssize_t dump_win1_disp_info(struct rk2928_lcdc_device *lcdc_dev,char *buf)
{
char format[9] = "NULL";
u32 fmt_id = LcdRdReg(lcdc_dev,SYS_CFG);
u32 xvir,act_info,dsp_info,dsp_st,factor;
u16 x_act,y_act,x_dsp,y_dsp,x_factor,y_factor;
u16 x_scale,y_scale;
switch((fmt_id&m_W1_FORMAT)>>6)
{
case 0:
strcpy(format,"ARGB888");
break;
case 1:
strcpy(format,"RGB888");
break;
case 2:
strcpy(format,"RGB565");
break;
default:
strcpy(format,"inval\n");
break;
}
xvir = (LcdRdReg(lcdc_dev,WIN_VIR)>>16)&0xfff;
dsp_info = LcdRdReg(lcdc_dev,WIN1_DSP_INFO);
dsp_st = LcdRdReg(lcdc_dev,WIN1_DSP_ST);
x_dsp = dsp_info&0xffff;
y_dsp = dsp_info>>16;
return snprintf(buf,PAGE_SIZE,"xvir:%d\nxdsp:%d\nydsp:%d\nx_st:%d\ny_st:%d\nformat:%s\n",
xvir,x_dsp,y_dsp,dsp_st&0xffff,dsp_st>>16,format);
}
static ssize_t rk2928_lcdc_get_disp_info(struct rk_lcdc_device_driver *dev_drv,char *buf,int layer_id)
{
struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
if(layer_id == 0)
{
return dump_win0_disp_info(lcdc_dev,buf);
}
else if(layer_id == 1)
{
return dump_win1_disp_info(lcdc_dev,buf);
}
return 0;
}
/*******************************************
lcdc fps manager,set or get lcdc fps
set:0 get
1 set
********************************************/
static int rk2928_lcdc_fps_mgr(struct rk_lcdc_device_driver *dev_drv,int fps,bool set)
{
struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
rk_screen * screen = dev_drv->cur_screen;
u64 ft = 0;
u32 dotclk;
int ret;
if(set)
{
ft = div_u64(1000000000000llu,fps);
dev_drv->pixclock = div_u64(ft,(screen->upper_margin + screen->lower_margin + screen->y_res +screen->vsync_len)*
(screen->left_margin + screen->right_margin + screen->x_res + screen->hsync_len));
dotclk = div_u64(1000000000000llu,dev_drv->pixclock);
ret = clk_set_rate(lcdc_dev->dclk, dotclk);
if(ret)
{
printk(KERN_ERR ">>>>>> set lcdc%d dclk failed\n",lcdc_dev->id);
}
dev_drv->pixclock = lcdc_dev->pixclock = div_u64(1000000000000llu, clk_get_rate(lcdc_dev->dclk));
}
ft = (u64)(screen->upper_margin + screen->lower_margin + screen->y_res +screen->vsync_len)*
(screen->left_margin + screen->right_margin + screen->x_res + screen->hsync_len)*
(dev_drv->pixclock); // one frame time ,(pico seconds)
fps = div64_u64(1000000000000llu,ft);
screen->ft = 1000/fps ; //one frame time in ms
return fps;
}
static int rk2928_fb_layer_remap(struct rk_lcdc_device_driver *dev_drv,
enum fb_win_map_order order)
{
mutex_lock(&dev_drv->fb_win_id_mutex);
if(order == FB_DEFAULT_ORDER)
{
order = FB0_WIN0_FB1_WIN1_FB2_WIN2;
}
dev_drv->fb2_win_id = order/100;
dev_drv->fb1_win_id = (order/10)%10;
dev_drv->fb0_win_id = order%10;
mutex_unlock(&dev_drv->fb_win_id_mutex);
printk("fb0:win%d\nfb1:win%d\nfb2:win%d\n",dev_drv->fb0_win_id,dev_drv->fb1_win_id,
dev_drv->fb2_win_id);
return 0;
}
static int rk2928_fb_get_layer(struct rk_lcdc_device_driver *dev_drv,const char *id)
{
int layer_id = 0;
mutex_lock(&dev_drv->fb_win_id_mutex);
if(!strcmp(id,"fb0"))
{
layer_id = dev_drv->fb0_win_id;
}
else if(!strcmp(id,"fb1"))
{
layer_id = dev_drv->fb1_win_id;
}
else if(!strcmp(id,"fb2"))
{
layer_id = dev_drv->fb2_win_id;
}
else
{
printk(KERN_ERR "%s>>un supported %s\n",__func__,id);
layer_id = -1;
}
mutex_unlock(&dev_drv->fb_win_id_mutex);
//printk("%s %s win%d\n",__func__,id,layer_id);
return layer_id;
}
static int rk2928_lcdc_hdmi_process(struct rk_lcdc_device_driver *dev_drv,int mode)
{
#if !defined(CONFIG_ONE_LCDC_DUAL_OUTPUT_INF)
printk("%s>>>>>>>>mode:%d\n",__func__,mode);
if(mode)
{
rk2928_lcdc_iomux(dev_drv->screen0,0); //switch to gpio mode,to avoid current leakage
if(dev_drv->screen_ctr_info->io_disable)
dev_drv->screen_ctr_info->io_disable();
}
else
{
rk2928_lcdc_iomux(dev_drv->screen0,1); //switch to gpio mode,to avoid current leakage
if(dev_drv->screen_ctr_info->io_enable)
dev_drv->screen_ctr_info->io_enable();
}
#endif
return 0;
}
int rk2928_lcdc_early_suspend(struct rk_lcdc_device_driver *dev_drv)
{
struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
if(dev_drv->screen0->standby)
dev_drv->screen0->standby(1);
if(dev_drv->screen_ctr_info->io_disable)
dev_drv->screen_ctr_info->io_disable();
if(dev_drv->cur_screen->sscreen_set)
dev_drv->cur_screen->sscreen_set(dev_drv->cur_screen , 0);
spin_lock(&lcdc_dev->reg_lock);
if(likely(lcdc_dev->clk_on))
{
lcdc_dev->clk_on = 0;
LcdMskReg(lcdc_dev, INT_STATUS, m_FRM_START_INT_CLEAR, v_FRM_START_INT_CLEAR(1));
LcdSetBit(lcdc_dev,DSP_CTRL,m_BLACK_MODE);
LcdMskReg(lcdc_dev, SYS_CFG,m_DSP_OUT_ZERO | m_LCDC_STANDBY,
v_DSP_OUT_ZERO(1) | v_LCDC_STANDBY(1));
LCDC_REG_CFG_DONE();
spin_unlock(&lcdc_dev->reg_lock);
}
else //clk already disabled
{
spin_unlock(&lcdc_dev->reg_lock);
return 0;
}
mdelay(10);
rk2928_lcdc_iomux(dev_drv->screen0,0); //switch to gpio mode,to avoid current leakage
clk_disable(lcdc_dev->dclk);
clk_disable(lcdc_dev->hclk);
clk_disable(lcdc_dev->aclk);
clk_disable(lcdc_dev->pd);
return 0;
}
int rk2928_lcdc_early_resume(struct rk_lcdc_device_driver *dev_drv)
{
struct rk2928_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk2928_lcdc_device,driver);
if(dev_drv->screen_ctr_info->io_enable) //power on
dev_drv->screen_ctr_info->io_enable();
if(!lcdc_dev->clk_on)
{
clk_enable(lcdc_dev->pd);
clk_enable(lcdc_dev->hclk);
clk_enable(lcdc_dev->dclk);
clk_enable(lcdc_dev->aclk);
}
rk2928_lcdc_iomux(dev_drv->screen0,1); //switch to lcdc io
memcpy((u8*)lcdc_dev->preg, (u8*)&lcdc_dev->regbak, 0xc4); //resume reg
spin_lock(&lcdc_dev->reg_lock);
if(lcdc_dev->atv_layer_cnt)
{
LcdMskReg(lcdc_dev, SYS_CFG,m_DSP_OUT_ZERO | m_LCDC_STANDBY,
v_DSP_OUT_ZERO(0) | v_LCDC_STANDBY(0));
LcdClrBit(lcdc_dev,DSP_CTRL,m_BLACK_MODE);
LCDC_REG_CFG_DONE();
}
lcdc_dev->clk_on = 1;
spin_unlock(&lcdc_dev->reg_lock);
if(dev_drv->cur_screen->sscreen_set)
dev_drv->cur_screen->sscreen_set(dev_drv->cur_screen , 1);
if(dev_drv->screen0->standby)
dev_drv->screen0->standby(0); //screen wake up
return 0;
}
static irqreturn_t rk2928_lcdc_isr(int irq, void *dev_id)
{
struct rk2928_lcdc_device *lcdc_dev = (struct rk2928_lcdc_device *)dev_id;
ktime_t timestamp = ktime_get();
LcdMskReg(lcdc_dev, INT_STATUS, m_FRM_START_INT_CLEAR, v_FRM_START_INT_CLEAR(1));
//LCDC_REG_CFG_DONE();
//LcdMskReg(lcdc_dev, INT_STATUS, m_LINE_FLAG_INT_CLEAR, v_LINE_FLAG_INT_CLEAR(1));
if(lcdc_dev->driver.num_buf < 3) //three buffer ,no need to wait for sync
{
spin_lock(&(lcdc_dev->driver.cpl_lock));
complete(&(lcdc_dev->driver.frame_done));
spin_unlock(&(lcdc_dev->driver.cpl_lock));
}
lcdc_dev->driver.vsync_info.timestamp = timestamp;
wake_up_interruptible_all(&lcdc_dev->driver.vsync_info.wait);
return IRQ_HANDLED;
}
static struct layer_par lcdc_layer[] = {
[0] = {
.name = "win0",
.id = 0,
.support_3d = true,
},
[1] = {
.name = "win1",
.id = 1,
.support_3d = false,
},
};
static struct rk_lcdc_device_driver lcdc_driver = {
.name = "lcdc",
.def_layer_par = lcdc_layer,
.num_layer = ARRAY_SIZE(lcdc_layer),
.open = rk2928_lcdc_open,
.init_lcdc = init_rk2928_lcdc,
.ioctl = rk2928_lcdc_ioctl,
.suspend = rk2928_lcdc_early_suspend,
.resume = rk2928_lcdc_early_resume,
.set_par = rk2928_lcdc_set_par,
.blank = rk2928_lcdc_blank,
.pan_display = rk2928_lcdc_pan_display,
.load_screen = rk2928_load_screen,
.get_layer_state = rk2928_lcdc_get_layer_state,
.ovl_mgr = rk2928_lcdc_ovl_mgr,
.get_disp_info = rk2928_lcdc_get_disp_info,
.fps_mgr = rk2928_lcdc_fps_mgr,
.fb_get_layer = rk2928_fb_get_layer,
.fb_layer_remap = rk2928_fb_layer_remap,
.lcdc_hdmi_process = rk2928_lcdc_hdmi_process,
};
#ifdef CONFIG_PM
static int rk2928_lcdc_suspend(struct platform_device *pdev, pm_message_t state)
{
return 0;
}
static int rk2928_lcdc_resume(struct platform_device *pdev)
{
return 0;
}
#else
#define rk2928_lcdc_suspend NULL
#define rk2928_lcdc_resume NULL
#endif
static int __devinit rk2928_lcdc_probe (struct platform_device *pdev)
{
struct rk2928_lcdc_device *lcdc_dev=NULL;
rk_screen *screen0;
rk_screen *screen1;
struct rk29fb_info *screen_ctr_info;
struct resource *res = NULL;
struct resource *mem;
int ret = 0;
/*************Malloc rk2928lcdc_inf and set it to pdev for drvdata**********/
lcdc_dev = kzalloc(sizeof(struct rk2928_lcdc_device), GFP_KERNEL);
if(!lcdc_dev)
{
dev_err(&pdev->dev, ">>rk2928 lcdc device kmalloc fail!");
return -ENOMEM;
}
platform_set_drvdata(pdev, lcdc_dev);
lcdc_dev->id = pdev->id;
screen_ctr_info = (struct rk29fb_info * )pdev->dev.platform_data;
screen0 = kzalloc(sizeof(rk_screen), GFP_KERNEL); //rk2928 has one lcdc but two outputs
if(!screen0)
{
dev_err(&pdev->dev, ">>rk2928 lcdc screen1 kmalloc fail!");
ret = -ENOMEM;
goto err0;
}
screen0->lcdc_id = 0; //this id can be changed dynamic
screen0->screen_id = 0; //this id is fixed
screen1 = kzalloc(sizeof(rk_screen), GFP_KERNEL);
if(!screen1)
{
dev_err(&pdev->dev, ">>rk2928 lcdc screen1 kmalloc fail!");
ret = -ENOMEM;
goto err0;
}
screen1->lcdc_id = 1;
screen1->screen_id = 1;
/****************get lcdc0 reg *************************/
res = platform_get_resource(pdev, IORESOURCE_MEM,0);
if (res == NULL)
{
dev_err(&pdev->dev, "failed to get io resource for lcdc%d \n",lcdc_dev->id);
ret = -ENOENT;
goto err1;
}
lcdc_dev->reg_phy_base = res->start;
lcdc_dev->len = resource_size(res);
mem = request_mem_region(lcdc_dev->reg_phy_base, resource_size(res), pdev->name);
if (mem == NULL)
{
dev_err(&pdev->dev, "failed to request mem region for lcdc%d\n",lcdc_dev->id);
ret = -ENOENT;
goto err1;
}
lcdc_dev->reg_vir_base = ioremap(lcdc_dev->reg_phy_base, resource_size(res));
if (lcdc_dev->reg_vir_base == NULL)
{
dev_err(&pdev->dev, "cannot map IO\n");
ret = -ENXIO;
goto err2;
}
lcdc_dev->preg = (LCDC_REG*)lcdc_dev->reg_vir_base;
printk("lcdc%d:reg_phy_base = 0x%08x,reg_vir_base:0x%p\n",pdev->id,lcdc_dev->reg_phy_base, lcdc_dev->preg);
lcdc_dev->driver.dev=&pdev->dev;
lcdc_dev->driver.screen0 = screen0; //direct out put
lcdc_dev->driver.screen1 = screen1; //out put from scale
lcdc_dev->driver.cur_screen = screen0;
lcdc_dev->driver.screen_ctr_info = screen_ctr_info;
spin_lock_init(&lcdc_dev->reg_lock);
lcdc_dev->irq = platform_get_irq(pdev, 0);
if(lcdc_dev->irq < 0)
{
dev_err(&pdev->dev, "cannot find IRQ\n");
goto err3;
}
ret = request_irq(lcdc_dev->irq, rk2928_lcdc_isr, IRQF_DISABLED,dev_name(&pdev->dev),lcdc_dev);
if (ret)
{
dev_err(&pdev->dev, "cannot requeset irq %d - err %d\n", lcdc_dev->irq, ret);
ret = -EBUSY;
goto err3;
}
if(screen_ctr_info->set_screen_info)
{
screen_ctr_info->set_screen_info(screen0,screen_ctr_info->lcd_info);
if(SCREEN_NULL==screen0->type)
{
printk(KERN_WARNING "no display device on lcdc%d!?\n",lcdc_dev->id);
ret = -ENODEV;
}
if(screen_ctr_info->io_init)
screen_ctr_info->io_init(NULL);
}
else
{
printk(KERN_WARNING "no display device on lcdc%d!?\n",lcdc_dev->id);
ret = -ENODEV;
goto err4;
}
ret = rk_fb_register(&(lcdc_dev->driver),&lcdc_driver,lcdc_dev->id);
if(ret < 0)
{
printk(KERN_ERR "register fb for lcdc%d failed!\n",lcdc_dev->id);
goto err4;
}
printk("rk2928 lcdc%d probe ok!\n",lcdc_dev->id);
return 0;
err4:
free_irq(lcdc_dev->irq,lcdc_dev);
err3:
iounmap(lcdc_dev->reg_vir_base);
err2:
release_mem_region(lcdc_dev->reg_phy_base,resource_size(res));
err1:
kfree(screen0);
err0:
platform_set_drvdata(pdev, NULL);
kfree(lcdc_dev);
return ret;
}
static int __devexit rk2928_lcdc_remove(struct platform_device *pdev)
{
struct rk2928_lcdc_device *lcdc_dev = platform_get_drvdata(pdev);
rk_fb_unregister(&(lcdc_dev->driver));
rk2928_lcdc_deinit(lcdc_dev);
iounmap(lcdc_dev->reg_vir_base);
release_mem_region(lcdc_dev->reg_phy_base,lcdc_dev->len);
kfree(lcdc_dev->screen);
kfree(lcdc_dev);
return 0;
}
static void rk2928_lcdc_shutdown(struct platform_device *pdev)
{
struct rk2928_lcdc_device *lcdc_dev = platform_get_drvdata(pdev);
if(lcdc_dev->driver.cur_screen->standby) //standby the screen if necessary
lcdc_dev->driver.cur_screen->standby(1);
if(lcdc_dev->driver.screen_ctr_info->io_disable) //power off the screen if necessary
lcdc_dev->driver.screen_ctr_info->io_disable();
if(lcdc_dev->driver.cur_screen->sscreen_set) //turn off lvds
lcdc_dev->driver.cur_screen->sscreen_set(lcdc_dev->driver.cur_screen , 0);
//rk_fb_unregister(&(lcdc_dev->driver));
rk2928_lcdc_deinit(lcdc_dev);
/*iounmap(lcdc_dev->reg_vir_base);
release_mem_region(lcdc_dev->reg_phy_base,lcdc_dev->len);
kfree(lcdc_dev->screen);
kfree(lcdc_dev);*/
}
static struct platform_driver rk2928lcdc_driver = {
.probe = rk2928_lcdc_probe,
.remove = __devexit_p(rk2928_lcdc_remove),
.driver = {
.name = "rk2928-lcdc",
.owner = THIS_MODULE,
},
.suspend = rk2928_lcdc_suspend,
.resume = rk2928_lcdc_resume,
.shutdown = rk2928_lcdc_shutdown,
};
static int __init rk2928_lcdc_init(void)
{
return platform_driver_register(&rk2928lcdc_driver);
}
static void __exit rk2928_lcdc_exit(void)
{
platform_driver_unregister(&rk2928lcdc_driver);
}
fs_initcall(rk2928_lcdc_init);
module_exit(rk2928_lcdc_exit);