BootLogo
bootlogo用于在uboot启动时显示图片，能够在板子上电2秒内完成图片的显示。下面介绍SSD20X平台下bootlogo的实现过程，这里默认已经了解过第四章rootfs的生成部分内容。
- 假设我们的屏幕是CC0702I50R_1024X600，logo图片名字为logo.jpg，则修改DISP_OUT_NAME和BOOTLOGO_FILE的值：
# vi project/configs/nvr/i2m/8.2.1/spinand.glibc.011a.64（201）
# vi project/configs/nvr/i2m/8.2.1/spinand.glibc.011a.128（202）
将 logo.jpg 拷贝到 project/board/ini/misc/ 目录下：
- 根据第十章，调好屏参，获得屏参头文件CC0702I50R_1024x600.h，但该屏参适用于MI架构，而bootlogo使用的是MHAL架构，因此需要将MI架构改为MHAL架构：
详细代码如下：
MhalPnlParamConfig_t stPanel_CC0702I50R =
{
"CC0702I50R_1024X600", // const char *m_pPanelName; ///< PanelName
#if !defined (__aarch64__)
0,
#endif
0, //MS_U8 m_bPanelDither :1; ///< PANEL_DITHER, keep the setting
E_MHAL_PNL_LINK_TTL, //MHAL_DISP_ApiPnlLinkType_e m_ePanelLinkType :4; ///< PANEL_LINK
///////////////////////////////////////////////
// Board related setting
///////////////////////////////////////////////
1, //MS_U8 m_bPanelDualPort :1; ///< VOP_21[8], MOD_4A[1], PANEL_DUAL_PORT, refer to m_bPanelDoubleClk
0, //MS_U8 m_bPanelSwapPort :1; ///< MOD_4A[0], PANEL_SWAP_PORT, refer to "LVDS output app note" A/B channel swap
0, //MS_U8 m_bPanelSwapOdd_ML :1; ///< PANEL_SWAP_ODD_ML
0, //MS_U8 m_bPanelSwapEven_ML :1; ///< PANEL_SWAP_EVEN_ML
0, //MS_U8 m_bPanelSwapOdd_RB :1; ///< PANEL_SWAP_ODD_RB
0, //MS_U8 m_bPanelSwapEven_RB :1; ///< PANEL_SWAP_EVEN_RB
0, //MS_U8 m_bPanelSwapLVDS_POL :1; ///< MOD_40[5], PANEL_SWAP_LVDS_POL, for differential P/N swap
0, //MS_U8 m_bPanelSwapLVDS_CH :1; ///< MOD_40[6], PANEL_SWAP_LVDS_CH, for pair swap
0, //MS_U8 m_bPanelPDP10BIT :1; ///< MOD_40[3], PANEL_PDP_10BIT ,for pair swap
1, //MS_U8 m_bPanelLVDS_TI_MODE :1; ///< MOD_40[2], PANEL_LVDS_TI_MODE, refer to "LVDS output app note"
///////////////////////////////////////////////
// For TTL Only
///////////////////////////////////////////////
0, //MS_U8 m_ucPanelDCLKDelay; ///< PANEL_DCLK_DELAY
0, //MS_U8 m_bPanelInvDCLK :1; ///< MOD_4A[4], PANEL_INV_DCLK
0, //MS_U8 m_bPanelInvDE :1; ///< MOD_4A[2], PANEL_INV_DE
0, //MS_U8 m_bPanelInvHSync :1; ///< MOD_4A[12], PANEL_INV_HSYNC
0, //MS_U8 m_bPanelInvVSync :1; ///< MOD_4A[3], PANEL_INV_VSYNC
///////////////////////////////////////////////
// Output driving current setting
///////////////////////////////////////////////
// driving current setting (0x00=4mA, 0x01=6mA, 0x02=8mA, 0x03=12mA)
1, //MS_U8 m_ucPanelDCKLCurrent; ///< define PANEL_DCLK_CURRENT
1, //MS_U8 m_ucPanelDECurrent; ///< define PANEL_DE_CURRENT
1, //MS_U8 m_ucPanelODDDataCurrent; ///< define PANEL_ODD_DATA_CURRENT
1, //MS_U8 m_ucPanelEvenDataCurrent; ///< define PANEL_EVEN_DATA_CURRENT
///////////////////////////////////////////////
// panel on/off timing
///////////////////////////////////////////////
30, //MS_U16 m_wPanelOnTiming1; ///< time between panel & data while turn on power
400, //MS_U16 m_wPanelOnTiming2; ///< time between data & back light while turn on power
80, //MS_U16 m_wPanelOffTiming1; ///< time between back light & data while turn off power
30, //MS_U16 m_wPanelOffTiming2; ///< time between data & panel while turn off power
///////////////////////////////////////////////
// panel timing spec.
///////////////////////////////////////////////
// sync related
70, //MS_U8 m_ucPanelHSyncWidth; ///< VOP_01[7:0], PANEL_HSYNC_WIDTH
160, //MS_U8 m_ucPanelHSyncBackPorch; ///< PANEL_HSYNC_BACK_PORCH, no register setting, provide value for query only
///< not support Manuel VSync Start/End now
///< VOP_02[10:0] VSync start = Vtt - VBackPorch - VSyncWidth
///< VOP_03[10:0] VSync end = Vtt - VBackPorch
10, //MS_U8 m_ucPanelVSyncWidth; ///< define PANEL_VSYNC_WIDTH
23, //MS_U8 m_ucPanelVBackPorch; ///< define PANEL_VSYNC_BACK_PORCH
// DE related
230, //MS_U16 m_wPanelHStart; ///< VOP_04[11:0], PANEL_HSTART, DE H Start (PANEL_HSYNC_WIDTH + PANEL_HSYNC_BACK_PORCH)
33, //MS_U16 m_wPanelVStart; ///< VOP_06[11:0], PANEL_VSTART, DE V Start
1024, //MS_U16 m_wPanelWidth; ///< PANEL_WIDTH, DE width (VOP_05[11:0] = HEnd = HStart + Width - 1)
600, //MS_U16 m_wPanelHeight; ///< PANEL_HEIGHT, DE height (VOP_07[11:0], = Vend = VStart + Height - 1)
// DClk related
1344, //MS_U16 m_wPanelMaxHTotal; ///< PANEL_MAX_HTOTAL. Reserved for future using.
1344, //MS_U16 m_wPanelHTotal; ///< VOP_0C[11:0], PANEL_HTOTAL
1344, //MS_U16 m_wPanelMinHTotal; ///< PANEL_MIN_HTOTAL. Reserved for future using.
635, //MS_U16 m_wPanelMaxVTotal; ///< PANEL_MAX_VTOTAL. Reserved for future using.
635, //MS_U16 m_wPanelVTotal; ///< VOP_0D[11:0], PANEL_VTOTAL
635, //MS_U16 m_wPanelMinVTotal; ///< PANEL_MIN_VTOTAL. Reserved for future using.
51, //MS_U8 m_dwPanelMaxDCLK; ///< PANEL_MAX_DCLK. Reserved for future using.
51, //MS_U8 m_dwPanelDCLK; ///< LPLL_0F[23:0], PANEL_DCLK ,{0x3100_10[7:0], 0x3100_0F[15:0]}
51, //MS_U8 m_dwPanelMinDCLK; ///< PANEL_MIN_DCLK. Reserved for future using.
///< spread spectrum
25, //MS_U16 m_wSpreadSpectrumStep; ///< move to board define, no use now.
192, //MS_U16 m_wSpreadSpectrumSpan; ///< move to board define, no use now.
160, //MS_U8 m_ucDimmingCtl; ///< Initial Dimming Value
255, //MS_U8 m_ucMaxPWMVal; ///< Max Dimming Value
80, //MS_U8 m_ucMinPWMVal; ///< Min Dimming Value
0, //MS_U8 m_bPanelDeinterMode :1; ///< define PANEL_DEINTER_MODE, no use now
E_MHAL_PNL_ASPECT_RATIO_WIDE, //MHAL_DISP_PnlAspectRatio_e m_ucPanelAspectRatio; ///< Panel Aspect Ratio, provide information to upper layer application for aspect ratio setting.
/*
*
* Board related params
*
* If a board ( like BD_MST064C_D01A_S ) swap LVDS TX polarity
* : This polarity swap value =
* (LVDS_PN_SWAP_H<<8) | LVDS_PN_SWAP_L from board define,
* Otherwise
* : The value shall set to 0.
*/
0, //MS_U16 m_u16LVDSTxSwapValue;
E_MHAL_PNL_TI_8BIT_MODE, //MHAL_DISP_ApiPnlTiBitMode_e m_ucTiBitMode; ///< MOD_4B[1:0], refer to "LVDS output app note"
E_MHAL_PNL_OUTPUT_8BIT_MODE, //MHAL_DISP_ApiPnlOutPutFormatBitMode_e m_ucOutputFormatBitMode;
3, //MS_U8 m_bPanelSwapOdd_RG :1; ///< define PANEL_SWAP_ODD_RG
2, //MS_U8 m_bPanelSwapEven_RG :1; ///< define PANEL_SWAP_EVEN_RG
1, //MS_U8 m_bPanelSwapOdd_GB :1; ///< define PANEL_SWAP_ODD_GB
0, //MS_U8 m_bPanelSwapEven_GB :1; ///< define PANEL_SWAP_EVEN_GB
/**
* Others
*/
1, //MS_U8 m_bPanelDoubleClk :1; ///< LPLL_03[7], define Double Clock ,LVDS dual mode
0x001c848e, //MS_U32 m_dwPanelMaxSET; ///< define PANEL_MAX_SET
0x0018eb59, //MS_U32 m_dwPanelMinSET; ///< define PANEL_MIN_SET
E_MHAL_PNL_CHG_VTOTAL, //MHAL_DISP_ApiPnlOutTimingMode_e m_ucOutTimingMode; ///<Define which panel output timing change mode is used to change VFreq for same panel
0, //MS_U8 m_bPanelNoiseDith :1; ///< PAFRC mixed with noise dither disable
E_MHAL_PNL_CH_SWAP_0,
E_MHAL_PNL_CH_SWAP_1,
E_MHAL_PNL_CH_SWAP_2,
E_MHAL_PNL_CH_SWAP_3,
E_MHAL_PNL_CH_SWAP_4,
};
MhalPnlMipiDsiConfig_t stMipiDsiConfig_stPanel_CC0702I50R =
{
};
- 将屏参头文件CC0702I50R_1024x600.h拷贝到project/image/makefiletools/src/rawgenerator/pnl目录下：
- 修改disp_data_main.c：
# vi project/image/makefiletools/src/rawgenerator/disp_data_main.c将屏参头文件包含其中：
添加屏参到stTable[]：
- 修改屏幕分辨率配置
# vi project/board/i2m/SSC011A-S01A/config/fbdev.ini
配置如下：
[FB_DEVICE]
FB_HWLAYER_ID = 1
FB_HWWIN_ID = 0
FB_HWLAYER_DST = 3
FB_HWWIN_FORMAT = 5
FB_HWLAYER_OUTPUTCOLOR = 1
FB_WIDTH = 1024
FB_HEIGHT = 600
FB_TIMMING_WIDTH = 1920
FB_TIMMING_HEIGHT = 1080
FB_MMAP_NAME = E_MMAP_ID_FB
FB_BUFFER_LEN = 4096
#unit:Kbyte,4096=4M, fbdev.ko alloc size = FB_BUFFER_LEN*1024- 修改完成后，重新编译系统镜像，并更新到板子上观察效果：
# cd project/image/makefiletools/src/rawgenerator
# make
# cd -
# ./Release_to_customer.sh -f nand -p ssd201
文档更新时间: 2021-03-15 16:16 作者：Aeeditor
