//set lcdc according the screen info
static int rk3188_load_screen(struct rk_lcdc_device_driver *dev_drv, bool initscreen)
{
int ret = -EINVAL;
int fps;
u16 face = 0;
struct rk3188_lcdc_device *lcdc_dev =
container_of(dev_drv,struct rk3188_lcdc_device,driver);
rk_screen *screen = dev_drv->cur_screen;
u16 right_margin = screen->right_margin;
u16 left_margin = screen->left_margin;
u16 lower_margin = screen->lower_margin;
u16 upper_margin = screen->upper_margin;
u16 x_res = screen->x_res;
u16 y_res = screen->y_res;
spin_lock(&lcdc_dev->reg_lock);
if(likely(lcdc_dev->clk_on))
{
if(screen->type==SCREEN_MCU)
{
printk("MUC¡¡screen not supported now!\n");
return -EINVAL;
}
switch (screen->face)
{
case OUT_P565:
face = OUT_P565; //dither down to rgb565
lcdc_msk_reg(lcdc_dev, DSP_CTRL0, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE |
m_DITHER_DOWN_SEL,v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(0) |
v_DITHER_DOWN_SEL(1));
break;
case OUT_P666:
face = OUT_P666; //dither down to rgb666
lcdc_msk_reg(lcdc_dev, DSP_CTRL0, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE |
m_DITHER_DOWN_SEL, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(1) |
v_DITHER_DOWN_SEL(1));
break;
case OUT_D888_P565:
face = OUT_P888;
lcdc_msk_reg(lcdc_dev, DSP_CTRL0, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE |
m_DITHER_DOWN_SEL, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(0) |
v_DITHER_DOWN_SEL(1));
break;
case OUT_D888_P666:
face = OUT_P888;
lcdc_msk_reg(lcdc_dev, DSP_CTRL0, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE |
m_DITHER_DOWN_SEL, v_DITHER_DOWN_EN(1) | v_DITHER_DOWN_MODE(1) |
v_DITHER_DOWN_SEL(1));
break;
case OUT_P888:
face = OUT_P888;
break;
default:
printk("unsupported display output interface!\n");
break;
}
//use default overlay,set vsyn hsync den dclk polarity
lcdc_msk_reg(lcdc_dev, DSP_CTRL0,m_DSP_OUT_FORMAT | m_HSYNC_POL | m_VSYNC_POL |
m_DEN_POL |m_DCLK_POL,v_DSP_OUT_FORMAT(face) | v_HSYNC_POL(screen->pin_hsync) |
v_VSYNC_POL(screen->pin_vsync) | v_DEN_POL(screen->pin_den) | v_DCLK_POL(screen->pin_dclk));
//set background color to black,set swap according to the screen panel,disable blank mode
lcdc_msk_reg(lcdc_dev, DSP_CTRL1, m_BG_COLOR| m_DSP_BG_SWAP | m_DSP_RB_SWAP |
m_DSP_RG_SWAP | m_DSP_DELTA_SWAP | m_DSP_DUMMY_SWAP | m_BLANK_EN,
v_BG_COLOR(0x000000) | v_DSP_BG_SWAP(screen->swap_gb) |
v_DSP_RB_SWAP(screen->swap_rb) | v_DSP_RG_SWAP(screen->swap_rg) |
v_DSP_DELTA_SWAP(screen->swap_delta) | v_DSP_DUMMY_SWAP(screen->swap_dumy) |
v_BLANK_EN(0) | v_BLACK_EN(0));
lcdc_writel(lcdc_dev,DSP_HTOTAL_HS_END,v_HSYNC(screen->hsync_len) |
v_HORPRD(screen->hsync_len + left_margin + x_res + right_margin));
lcdc_writel(lcdc_dev,DSP_HACT_ST_END,v_HAEP(screen->hsync_len + left_margin + x_res) |
v_HASP(screen->hsync_len + left_margin));
lcdc_writel(lcdc_dev,DSP_VTOTAL_VS_END, v_VSYNC(screen->vsync_len) |
v_VERPRD(screen->vsync_len + upper_margin + y_res + lower_margin));
lcdc_writel(lcdc_dev,DSP_VACT_ST_END,v_VAEP(screen->vsync_len + upper_margin+y_res)|
v_VASP(screen->vsync_len + screen->upper_margin));
}
spin_unlock(&lcdc_dev->reg_lock);
ret = clk_set_rate(lcdc_dev->dclk, screen->pixclock);
if(ret)
{
dev_err(dev_drv->dev,"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));
fps = rk_fb_calc_fps(screen,lcdc_dev->pixclock);
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();
}
if(screen->sscreen_set)
{
screen->sscreen_set(screen,!initscreen);
}
dev_info(dev_drv->dev,"%s for lcdc%d ok!\n",__func__,lcdc_dev->id);
return 0;
}
static int rk30_load_screen(struct rk_lcdc_device_driver *dev_drv, bool initscreen)
{
int ret = -EINVAL;
struct rk30_lcdc_device *lcdc_dev = container_of(dev_drv,struct rk30_lcdc_device,driver);
rk_screen *screen = dev_drv->cur_screen;
u64 ft;
int fps;
u16 face;
u16 mcu_total, mcu_rwstart, mcu_csstart, mcu_rwend, mcu_csend;
u16 right_margin = screen->right_margin;
u16 lower_margin = screen->lower_margin;
u16 x_res = screen->x_res, y_res = screen->y_res;
// set the rgb or mcu
spin_lock(&lcdc_dev->reg_lock);
if(likely(lcdc_dev->clk_on))
{
if(screen->type==SCREEN_MCU)
{
lcdc_msk_reg(lcdc_dev, MCU_CTRL, m_MCU_OUTPUT_SELECT,v_MCU_OUTPUT_SELECT(1));
// set out format and mcu timing
mcu_total = (screen->mcu_wrperiod*150*1000)/1000000;
if(mcu_total>31)
mcu_total = 31;
if(mcu_total<3)
mcu_total = 3;
mcu_rwstart = (mcu_total+1)/4 - 1;
mcu_rwend = ((mcu_total+1)*3)/4 - 1;
mcu_csstart = (mcu_rwstart>2) ? (mcu_rwstart-3) : (0);
mcu_csend = (mcu_rwend>15) ? (mcu_rwend-1) : (mcu_rwend);
//DBG(1,">> mcu_total=%d, mcu_rwstart=%d, mcu_csstart=%d, mcu_rwend=%d, mcu_csend=%d \n",
// mcu_total, mcu_rwstart, mcu_csstart, mcu_rwend, mcu_csend);
// set horizontal & vertical out timing
right_margin = x_res/6;
screen->pixclock = 150000000; //mcu fix to 150 MHz
lcdc_msk_reg(lcdc_dev, MCU_CTRL,m_MCU_CS_ST | m_MCU_CS_END| m_MCU_RW_ST | m_MCU_RW_END |
m_MCU_WRITE_PERIOD | m_MCU_HOLDMODE_SELECT | m_MCU_HOLDMODE_FRAME_ST,
v_MCU_CS_ST(mcu_csstart) | v_MCU_CS_END(mcu_csend) | v_MCU_RW_ST(mcu_rwstart) |
v_MCU_RW_END(mcu_rwend) | v_MCU_WRITE_PERIOD(mcu_total) |
v_MCU_HOLDMODE_SELECT((SCREEN_MCU==screen->type)?(1):(0)) | v_MCU_HOLDMODE_FRAME_ST(0));
}
switch (screen->face)
{
case OUT_P565:
face = OUT_P565;
lcdc_msk_reg(lcdc_dev, DSP_CTRL0, 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;
lcdc_msk_reg(lcdc_dev, DSP_CTRL0, 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;
lcdc_msk_reg(lcdc_dev, DSP_CTRL0, 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;
lcdc_msk_reg(lcdc_dev, DSP_CTRL0, 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;
lcdc_msk_reg(lcdc_dev, DSP_CTRL0, m_DITHER_UP_EN, v_DITHER_UP_EN(1));
lcdc_msk_reg(lcdc_dev, DSP_CTRL0, m_DITHER_DOWN_EN | m_DITHER_DOWN_MODE, v_DITHER_DOWN_EN(0) | v_DITHER_DOWN_MODE(0));
break;
default:
lcdc_msk_reg(lcdc_dev, DSP_CTRL0, m_DITHER_UP_EN, v_DITHER_UP_EN(0));
lcdc_msk_reg(lcdc_dev, DSP_CTRL0, 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
lcdc_msk_reg(lcdc_dev, DSP_CTRL0,m_DISPLAY_FORMAT | m_HSYNC_POLARITY | m_VSYNC_POLARITY |
m_DEN_POLARITY |m_DCLK_POLARITY,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));
//set background color to black,set swap according to the screen panel,disable blank mode
lcdc_msk_reg(lcdc_dev, DSP_CTRL1, m_BG_COLOR | m_OUTPUT_RB_SWAP | m_OUTPUT_RG_SWAP | m_DELTA_SWAP |
m_DUMMY_SWAP | m_BLANK_MODE,v_BG_COLOR(0x000000) | v_OUTPUT_RB_SWAP(screen->swap_rb) |
v_OUTPUT_RG_SWAP(screen->swap_rg) | v_DELTA_SWAP(screen->swap_delta) | v_DUMMY_SWAP(screen->swap_dumy) |
v_BLACK_MODE(0));
lcdc_writel(lcdc_dev, DSP_HTOTAL_HS_END,v_HSYNC(screen->hsync_len) |
v_HORPRD(screen->hsync_len + screen->left_margin + x_res + right_margin));
lcdc_writel(lcdc_dev, DSP_HACT_ST_END, v_HAEP(screen->hsync_len + screen->left_margin + x_res) |
v_HASP(screen->hsync_len + screen->left_margin));
lcdc_writel(lcdc_dev, DSP_VTOTAL_VS_END, v_VSYNC(screen->vsync_len) |
v_VERPRD(screen->vsync_len + screen->upper_margin + y_res + lower_margin));
lcdc_writel(lcdc_dev, DSP_VACT_ST_END, v_VAEP(screen->vsync_len + screen->upper_margin+y_res)|
v_VASP(screen->vsync_len + screen->upper_margin));
// let above to take effect
lcdc_cfg_done(lcdc_dev);
}
spin_unlock(&lcdc_dev->reg_lock);
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));
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;
}
