MTK手机设备驱动编写介绍.ppt

MTKDriverIntroduction,首先需要注意两个宏定义1._CUST_NEW_程序中有多处用该宏将代码隔开Make文件中若如下定义：DRV_CUSTOM_TOOL_SUPPORT=TRUEOption.mak文件中ifdefDRV_CUSTOM_TOOL_SUPPORTifeq($(strip$(DRV_CUSTOM_TOOL_SUPPORT),TRUE)COM_DEFS+=_CUST_NEW_endifendif,2.WIN32#ifndefWIN32#endif用该宏将真机与模拟器的代码分隔开,一.GPIO口的初使化与使用,GPIO口的初始化方法：两种：1.工具customdrvDrv_ToolDrvGen.exe修改：customdrvmisc_drvIWIT23_NEP_07A_PMJ_BBcodegencodegen.dws2.程序中修改：Gpio_drv.cvoidGPIO_init(void)操作1.写状态a.模式修改GPIO_ModeSetup(kal_uint16pin,kal_uint16conf_dada)b.方向修改voidGPIO_InitIO(chardirection,charport)c.置高与置低GPIO_WriteIO(chardata,charport),d.上拉与下拉的使能voidGPIO_PullenSetup(kal_uint16pin,kal_boolenable)2.读取状态a.返回模式charGPIO_ReturnMode(charport);b.返回方向charGPIO_ReturnDir(charport);c.返回电平值charGPIO_ReturnDout(charport);3.GPIO使用中需注意的问题,二.中断的配置与使用,.中断个数8个EINT0,EINT1为专用中断,EINT2-7与GPIO等功能复用.设置中断模式通过DRV_TOOL或Gpio_init(void)来初始化，也可在程序中通过GPIO_ModeSetup(kal_uint16pin,kal_uint16conf_dada)随时修改.中断注册函数在某个TASK中注册中断，建议注册在AUX_TASK中，便于管理EINT_Registration(FLICK_EINT_NO,KAL_TRUE,flick_state,FLICK_EINT_HISR,KAL_TRUE);.中断处理函数以FLICK及BATTERY两个中断为例：,voidFLICK_EINT_HISR(void)/addedbyJeffJi071024ilm_struct*flick_ilm;aux_id_struct*aux_id_data;if(flick_state=LEVEL_HIGH)aux_id_data=(aux_id_struct*)construct_local_para(sizeof(aux_id_struct),TD_CTRL);aux_id_data-aux_id=AUX_ID_FLICK_OFF;DRV_BuildPrimitive(flick_ilm,MOD_EINT_HISR,MOD_UEM,MSG_ID_AUX_ID,aux_id_data);,elseaux_id_data=(aux_id_struct*)construct_local_para(sizeof(aux_id_struct),TD_CTRL);aux_id_data-aux_id=AUX_ID_FLICK_ON;DRV_BuildPrimitive(flick_ilm,MOD_EINT_HISR,MOD_UEM,MSG_ID_AUX_ID,aux_id_data);msg_send_ext_queue(flick_ilm);flick_state=!flick_state;EINT_Set_Polarity(FLICK_EINT_NO,flick_state);,voidBATTERY_EINT_HISR(void)iwit_battery_state=!iwit_battery_state;EINT_Set_Polarity(BAT_EINT_NO,iwit_battery_state);iwit_fakeChargerAct=KAL_TRUE;if(iwit_battery_state=LEVEL_HIGH)/plugoutbmt_set_chr_status(bmt_chr_out);bmt_charger_action(KAL_FALSE);else/pluginif(iwit_charger_present)bmt_set_chr_status(bmt_chr_in);bmt_charger_action(KAL_TRUE);,三.键盘配置,5X6键盘Powerkey单独，第6列DEVICE_KEY_ENDKeypad_def.c配置行列矩阵Kbd_table.h定义DRIVERKEYCODEKeyBrd.c定义KeyPadMapGlobalConstants.h定义MMIKEYCODE,四.LCD驱动Lcd_sw.h1.定义写命令及写数据的函数#defineLCD_CtrlWrite_HX8306A(_data)*(volatilekal_uint32*)LCD_HX8306A_CTRL_ADDR=(_data2.定义是否使用DMA方式#defineLCD_CMD_DMA_MODE3.若是并口屏，要定义LCD接口的位数#defineLCD_18BIT_MODE,Lcd.cvoidLCD_FunConfig(void)MainLCD=voidLCD_Init_ST7549T(kal_uint32bkground,void*buf_addr)voidLCD_BlockWrite_ST7549T(kal_uint16startx,kal_uint16starty,kal_uint16endx,kal_uint16endy)voidLCD_EnterSleep_ST7549T(void)voidLCD_ExitSleep_ST7549T(void)voidLCD_SetContrast_ST7549T(kal_uint8level),串口屏voidinit_lcd_interface(void)SPI_Initialize();/modifiedbyjeffji071024/*init_lcd_interface()*voidlcdSendSerialData(kal_uint8SerialData,kal_boolrs)#definelcdSendCmd(cmd)lcdSendSerialData(cmd,0)#definelcdSendData(data)lcdSendSerialData(data,1),并口屏：voidinit_lcd_interface(void)kal_uint32i;REG_LCD_ROI_CTRL=0;CLEAR_LCD_CTRL_RESET_PIN;#if(defined(MT6219)|defined(MT6226)|defined(MT6226M)|defined(MT6227)|defined(MT6223)|defined(MT6223P)SET_LCD_PARALLEL_CE2WR_SETUP_TIME(kal_uint32)2);SET_LCD_PARALLEL_CE2WR_HOLD_TIME(2);SET_LCD_PARALLEL_CE2RD_SETUP_TIME(2);SET_LCD_PARALLEL_WRITE_WAIT_STATE(3);SET_LCD_PARALLEL_READ_LATENCY_TIME(31);SET_LCD_ROI_CTRL_CMD_LATENCY(3,#if(defined(MT6226)|defined(MT6226M)|defined(MT6227)|defined(MT6223)|defined(MT6223P)#if(defined(LCD_16BIT_MODE)SET_LCD_PARALLEL_16BIT_DATA_BUS;/ywm+20060518#elif(defined(LCD_18BIT_MODE)GPIO_ModeSetup(55,1);*(volatileunsignedshort*)0 x801201B0)|=0 x4000;*(volatileunsignedshort*)0 x801201D0)|=0 x0001;SET_LCD_PARALLEL_18BIT_DATA_BUS;#elif(defined(LCD_8BIT_MODE)SET_LCD_PARALLEL_8BIT_DATA_BUS;#endif#endif#if(defined(MT6219)DISABLE_LCD_PARALLEL_SYNC;#endif#endifSET_LCD_CTRL_RESET_PIN;Delayms(100);/*init_lcd_interface()*/,五.音效优化,SpeakerReceiverMicphone模式：normal;handfree;headsetNvram_default_audio.c值的范围0-255Audcoeff.cFIR需使用音频测试仪器测出的参数，一般都是normal模式下的参数;handfree模式下的参数要依靠经验和尝试来确定。constunsignedshortDG_DL_Speech=0 x1000;constunsignedshortDG_Microphone=0 x1400;以上两个变量为Receiver及Microphone的数字增益，值可以在0 x1000至0 x2000之间调整，但一般情况下不需调整。使用默认值，而只调整Nvram_default_audio.c当中的模拟增益值的大小即可,audcoeff_default.h#defineDEFAULT_SPEECH_LOUDSPK_MODE_PARA128,224,5128,0,374,0,400,0第一个参数范围值0至1024,值越大，回声抑制越弱;值越小，回声抑制越强。该值可以用于改善音频的回声及断续。其它值不建议修改.,_Apply_Mic_Setting对MIC的设置，注意MIC的单端及差分设置void_apply_mic_setting_c63216(kal_int16a_lowest)if(afe.mic_src=L1SP_LNA_1)/*HeadsetMode*/*AFE_VAC_CON0|=0 x0480;/*Switchinputsourcetoheadsetmicrophone*/*AFE_VAC_CON1|=0 x0040;/*Switchonresisterstring*/else/*NormalMode*/*AFE_VAC_CON0/*Switchoffresisterstring*/,六.ADC使用,1.工具配置2.系数设置Chr_parameter.cconstkal_uint16adc_volt_factorADC_MAX_CHANNEL100,100,50,250,50,50,/*NC*/50/*NC*/,50为一倍,3.ADC测量Auxmain.c,七.Touchpanel1.MAKE文件中如下配置TOUCH_PANEL_SUPPORT=MT63012.Touch_panel_spi.h#defineSPI_DIN_PINgpio_tp_spi_din_pin/*GPO*/#defineSPI_CLK_PINgpio_tp_spi_clk_pin/*GPO*/#defineSPI_DOUT_PINgpio_tp_spi_dout_pin/*GPI*/#defineSPI_CS_PINgpio_tp_spi_cs_pin/*GPO*/#defineSPI_BUSY_PINgpio_tp_spi_busy_pin/*GPI*/3.Touch_panel_custom.h#defineTOUCH_PANEL_COORD_X_START0#defineTOUCH_PANEL_COORD_X_END239#defineTOUCH_PANEL_COORD_Y_START0#defineTOUCH_PANEL_COORD_Y_END319,八.USB1.MAKE文件中_CHARGER_USB_DETECT_WIHT_ONE_EINT_USB_ENABLE_USB_IN_NORMAL_MODE_SUPPORT=TRUE2.ADC配置，工具配置ADC_CHR_USB3.Chr_parameter.cconstkal_uint16adc_volt_factorADC_MAX_CHANNEL100,100,50,250,50,50,/*NC*/50/*NC*/,九.UART串口初始化Uart.c中，voidUART_HWInit(UART_PORTport)UARTDCBStructUART_DefaultConfig=UART_BAUD_115200,/*baud;*/len_8,/*dataBits;*/sb_1,/*stopBits;*/pa_none,/*parity;*/fc_none,/*noflowcontrol*/0 x11,/*xonChar;*/0 x13,/*xoffChar;*/KAL_FALSE;,关于AT模式串口及Trace模式串口的设置（NVRAM)Nvram_common_config.cstatickal_uint8constNVRAM_EF_PORT_SETTING_DEFAULT=#ifdefined(_ONLY_ONE_UART_)0 x63,0 x00,/*TSTusesuart_port2(valueis1)*/0 x00,0 x00,/*APPusesuart_port1*/#else0 x01,0 x00,/*TSTusesuart_port2(valueis1)*/0 x00,0 x00,/*APPusesuart_port1*/#endif,#ifdefined(EMPTY_MMI)0 x00,0 x10,0 x0E,0 x00,/*tstdefaultbaudratebase=921600=0 x000E1000*/#else0 x00,0 xC2,0 x01,0 x00,/*tstdefaultbaudratebase=115200=0 x0001C200*/#endif#ifdefined(_GPRS_MODE_)0 x00,0 xC2,0 x01,0 x00,/*psdefaultbaudratebase=115200=0 x0001C200*/#else0 x00,0 xC2,0 x01,0 x00,/*psdefaultbaudratebase=57600=0 x0000E100*/#endif0 x00,/*HighSpeedSIM*/0 x00,/*SWDBG*/0 x03,0 x63,/*uartpowersetting,plus1-bytepadd