SC7731 客户驱动配置介绍

1、T-Shark 客户配置文档2014-09-08Tonny.chen . 211/09/11MCP/eMCP配置客制化驱动配置Keypad配置I2c配置LCD配置TP配置Camera配置L&P-Sensor配置性能排查性能排查apkapk检测检测MCP/eMCP配置如何确认是NAND工程还是eMMC工程？1. 在u-boot/include/configs/ sp7731gea.h和chipram/include/configs/ sp7731gea.h#ifndef CONFIG_EMMC_BOOTNAND#ifdef CONFIG_EMMC_BOOTEMMC2. 在客置化配置的时候

2、就需要重点关注NAND/EMMC相关的宏定义，这些宏定义会控具体其他配置参加编译。 . 3NAND/eMMC配置 . 4eMCP如何修改配置以配置成16Gb+2Gb为例说明1. chipram/include/configs/sp7731gea.h (1). DDR类型配置 /-these three macro below,only one can be open /#define DDR_LPDDR1 #define DDR_LPDDR2 /#define DDR_DDR3 (2). #define DDR_TYPE DRAM_LPDDR2_1CS_4G_X32 - #define DDR

3、_TYPE DRAM_LPDDR2_1CS_2G_X32 . 5eMCP如何修改配置2. u-boot/include/configs/sp7731gea.h(1). 定义内存大小#define CONFIG_RAM512M - #define CONFIG_RAM256M (2). #ifdef CONFIG_RAM512M#define MEM_INIT_PARA mem=512M#elif defined(CONFIG_RAM256M)#define MEM_INIT_PARA mem=256M“ .#endif#define CONFIG_BOOTARGS MEM_INIT_PARA

4、loglevel=1 console=ttyS1,115200n8 init=/init MTDPARTS_DEFAULT . 6eMCP如何修改配置(3). #define SPRD_SYSDUMP_MAGIC (PHYS_OFFSET_ADDR & (SZ_512M - 1) + SZ_512M - SZ_1M) - #define SPRD_SYSDUMP_MAGIC (PHYS_OFFSET_ADDR & (SZ_256M - 1) + SZ_256M - SZ_1M) . 7eMCP如何修改配置3. 在kernel/arch/arm/mash-sc/include/m

5、ach/board.h修改，在下面#if中增加宏定义 使其走256M的定义：#if defined(CONFIG_MACH_SP7731GEA_LC) | defined(CONFIG_MACH_SP7731GGA_LC) | defined(CONFIG_MACH_SP7730GGA_LC)/* Nand 4+2 */#define SPRD_ION_MEM_BASE (CONFIG_PHYS_OFFSET & (SZ_256M - 1) + SZ_256M - SPRD_ION_MEM_SIZE)#else#define SPRD_ION_MEM_BASE (CONFIG_PHYS

6、_OFFSET & (SZ_512M - 1) + SZ_512M - SPRD_ION_MEM_SIZE)#endif . 8eMCP如何修改配置4. 在device/sprd/ scx35_sp7731gea/p修改,ro.board_ram_size=mid - ro.board_ram_size=low . 9eMCP如何修改配置5. emmc 大小调整 (1). emmc大小变化不需关心, 由硬件emmc自动计算出来,如emmc大小减到16G bit，一般影响的就是userdata分区, 即data分区减少，分区表物理分区是自适应的，编译镜像需要缩小； (

7、2). 在device/sprd/scx35_sp7731gea/BoardConfig.mk修改定义USERDATA镜像大小 BOARD_USERDATAIMAGE_PARTITION_SIZE 的值减去 2,000,000,000（比如原来是4GB，现在是2GB，因为EMMC容量少了将近2GB，全部要从data分区裁掉） . 10Memory验证处理流程1. 先确认该flash我们平台是否已验证过？2. 验证认证过，出patch；3. 未验证，提供物料申请验证后出patch。 . 11Memory 验证patch . 12Memory 验证patch . 13Shark4.4已验证的Mem

8、ory . 14在文件kernel/arch/arm/mach-sc/board-sp7731gea.c中按照如下步骤配置Keypad 1. 用如下两个宏来定义Keypad的行列值 2. 用宏KEY 在board_keymap添加配置项 static const unsigned int board_keymap = KEY(0, 0, KEY_VOLUMEDOWN), KEY(1, 0, KEY_VOLUMEUP), KEY(0, 1, KEY_HOME), ;Keypad 配置3. 将board_keymap加到customize_keymap添加配置项4. 将customize_keym

9、ap在sci_keypad_data添加配置项 Keypad 配置5.按键值与硬件配对的地方u-boot/board/spreadtrum/sp7731gea/key_map.h static unsigned char board_key_map=#if 0 0 x27, KEY_HOME, 0 x42, KEY_BACK, 0 x41, KEY_VOLUMEUP,#else /0 x00, KEY_BACK,/DOWN /0 x01, KEY_HOME,/CAM /0 x10, KEY_MENU,/UP 0 x10, KEY_VOLUMEUP, / 此处是与硬件配置有关的 0 x01, K

10、EY_HOME, 0 x00, KEY_VOLUMEDOWN,#endif; Keypad 配置6. 最后还需注意最后还需注意Key的layout如何处理。device/sprd/scx35/sci-keypad.kl key键值 key_name权限key 116 POWER WAKEkey 114 VOLUME_DOWN WAKEkey 115 VOLUME_UP WAKEkey 9 CAMERAkey 102 HOME WAKEKeypad 配置T-shark芯片 提供了六组 i2c 口,如下：I2c 配置配置1. 在文件kernel/arch/arm/mach-sc/board-sp7

11、731gea.c中按照如下步骤配置确定设备使用那组i2c并添加配置，例如： static struct i2c_board_info i2c2_boardinfo = #if(defined(CONFIG_INPUT_LIS3DH_I2C)|defined(CONFIG_INPUT_LIS3DH_I2C_MODULE) I2C_BOARD_INFO(LIS3DH_ACC_I2C_NAME, LIS3DH_ACC_I2C_ADDR), .platform_data = &lis3dh_plat_data, #endif#if(defined(CONFIG_SENSORS_AK8975)|

12、defined(CONFIG_SENSORS_AK8975_MODULE) I2C_BOARD_INFO(AKM8975_I2C_NAME, AKM8975_I2C_ADDR), .platform_data = &akm8975_platform_d,#endif I2c 配置配置 . 21 static struct i2c_board_info i2c1_boardinfo = I2C_BOARD_INFO(sensor_main,0 x3C),I2C_BOARD_INFO(sensor_sub,0 x21),;static struct i2c_board_info i2c0_

13、boardinfo = #if(defined(CONFIG_TOUCHSCREEN_FOCALTECH)|defined(CONFIG_TOUCHSCREEN_FOCALTECH_MODULE)I2C_BOARD_INFO(FOCALTECH_TS_NAME, FOCALTECH_TS_ADDR),.platform_data = &ft5x0 x_ts_info,#endif,; I2c 配置配置2. 添加I2C资源 kernel/arch/arm/mach-sc/devices-sc8830.c static struct resource sprd_i2c_resources0

14、 = 0 = .start = SPRD_I2C0_BASE, .end = SPRD_I2C0_BASE + SPRD_I2C0_SIZE -1, .name = i2c0_res, .flags = IORESOURCE_MEM, , 1 = .start = IRQ_I2C0_INT, .end = IRQ_I2C0_INT, .flags = IORESOURCE_IRQ, ; I2c 配置配置 struct platform_device sprd_i2c_device0 = .name = sprd-i2c, .id = 0, .num_resources = ARRAY_SIZE

15、(sprd_i2c_resources0), .resource = sprd_i2c_resources0,; I2c 配置配置LCD配置配置(u-boot)1. 增加驱动文件./u-boot/drivers/video/sprdfb/lcd/lcd_nt35516_mipi.c2. 增加编译规则./u-boot/drivers/video/sprdfb/lcd/MakefileCOBJS-$(CONFIG_FB_LCD_NT35516_MIPI) += lcd_nt35516_mipi.o3. 配置LCD编译选项及LCD尺寸./u-boot/include/configs/sp7731ge

16、a.h#ifdef CONFIG_LCD/#define CONFIG_LCD_HVGA 1/#define CONFIG_LCD_WVGA 1#define CONFIG_LCD_QHD 1#define CONFIG_FB_LCD_NT35516_MIPI#endif / CONFIG_LCDLCDLCD配置配置LCD配置配置(u-boot)4. 关联到内核 在./u-boot/drivers/video/sprdfb/sprdfb_panel.c文件中extern struct panel_spec lcd_nt35516_mipi_spec;static struct panel_cf

17、g panel_cfg = #ifdef CONFIG_FB_LCD_NT35516_MIPI.lcd_id = 0 x16,.panel = &lcd_nt35516_mipi_spec,#endif.;static struct panel_spec *adapt_panel_from_readid(struct sprdfb_device *dev)LCDLCD配置配置 . 26LCD配置配置(u-boot)5. /u-boot/drivers/video/sprdfb/lcd/lcd_nt35516_mipi.c中定义lcd_nt35516_mipi_specstruct pa

18、nel_spec lcd_nt35516_mipi_spec = /.cap = PANEL_CAP_NOT_TEAR_SYNC,#ifdef CONFIG_FB_LOW_RES_SIMU.display_width = 480,.display_height= 854,#endif.width = 540,.height = 960,.fps = 60,.type = LCD_MODE_DSI,.direction = LCD_DIRECT_NORMAL,.info = .mipi = &lcd_nt35516_mipi_info,.ops = &lcd_nt35516_mi

19、pi_operations,;LCDLCD配置配置LCD配置配置(kernel)1. 添加menuconfig配置项./kernel/drivers/video/sprdfb/Kconfigconfig FB_LCD_NT35516_MIPI boolean support NT35516 mipi panel depends on FB_SC8825 | FB_SCX35 default n2. 添加driver./kernel/drivers/video/sprdfb/lcd/lcd_nt35516_mipi.c3. 添加编译规则在./kernel/drivers/video/sprdfb

20、/lcd/Makefile文件中增加obj-$(CONFIG_FB_LCD_NT35516_MIPI) += lcd_nt35516_mipi.oLCDLCD配置配置LCD配置配置(kernel)4. 配置kernel默认LCD在./kernel/arch/arm/configs/sp7731gea-native_defconfig中添加CONFIG_FB_LCD_NT35516=yLCDLCD配置配置LCD配置配置(kernel)5. LCD panel注册相对u-boot下的LCD driver, kernel下的代码需要增加以下部分，来完成LCD panel注册：./kernel/dri

21、vers/video/sprdfb/lcd/lcd_nt35516_mipi.cstruct panel_cfg lcd_nt35516_mipi = /* this panel can only be main lcd */.dev_id = SPRDFB_MAINLCD_ID,.lcd_id = 0 x16, /用于与uboot传过来的LCD ID比较，来判断LCD是否已经初始化.lcd_name = lcd_nt35516_mipi,.panel = &lcd_nt35516_mipi_spec,;static int _init lcd_nt35516_mipi_init(vo

22、id) return sprdfb_panel_register(&lcd_nt35516_mipi); subsys_initcall(lcd_nt35516_mipi_init);LCDLCD配置配置TPTP配置配置TP配置配置1. 作为input设备，相应驱动文件均放在kernel/drivers/input/目录下kernel/drivers/input/touchscreen/focaltech/focaltech.c2. 设备是否启用由Makefile，Kconfig，board对应的defconfig控制。 (1). kernel/drivers/input/touchs

23、creen/focaltech/Makefileobj-$(CONFIG_TOUCHSCREEN_FOCALTECH) += focaltech_ts.o (2). kernel/drivers/input/touchscreen/Kconfigconfig TOUCHSCREEN_FOCALTECH tristate touchscreen_focaltech driver depends on I2C help Say Y here if you have a FOCALTECH based touchscreen controller. If unsure, say N. To comp

24、ile this driver as a module, choose M here: the module will be called focaltech_ts.oTP配置配置(3). Defconfig文件放在了configs目录，如sp7731gea工程：kernel/arch/arm/configs/sp7731gea-native_defconfig 定义了该设备是否被开启及其编译的模式CONFIG_TOUCHSCREEN_FOCALTECH=mTP配置配置3. 配置i2c注册信息，如sp7731gea工程：(1). kernel/arch/arm/mach-sc/board-sp

25、7731gea.c static struct i2c_board_info i2c0_boardinfo = I2C_BOARD_INFO(FOCALTECH_TS_NAME, FOCALTECH_TS_ADDR), .platform_data = &ft5x0 x_ts_info, ,;TP配置配置 (2) .详细定义：#include static struct ft5x0 x_ts_platform_data ft5x0 x_ts_info = .irq_gpio_number = GPIO_TOUCH_IRQ,.reset_gpio_number = GPIO_TOUCH_

26、RESET,.vdd_name = vdd28,.virtualkeys = 100,1020,80,65, 280,1020,80,65, 470,1020,80,65 ,#ifdef CONFIG_FB_LOW_RES_SIMU .TP_MAX_X = 640, .TP_MAX_Y = 1138,#else .TP_MAX_X = 720, .TP_MAX_Y = 1280,#endif;TP配置配置4. tpsensor还需要其他辅助引脚，如中断等。在sp7731gea工程中： kernel/arch/arm/mach-sc/include/mach/_board-sp7731gea.h

27、 #define GPIO_TOUCH_RESET 81 #define GPIO_TOUCH_IRQ 82 5. Pinmap用于配置gpio的初始功能，如GPIO_TOUCH_RESET ,配置如下： u-boot/board/spreadtrum/sp7731gea/pinmap-sp8830.c REG_PIN_SIMCLK2, BIT_PIN_SLP_AP|BIT_PIN_NULL|BITS_PIN_DS(1)|BITS_PIN_AF(3)|BIT_PIN_NUL|BIT_PIN_SLP_NUL|BIT_PIN_SLP_OE,/CTP_RSTvendor/sprd/open-sour

28、ce/libs/libcamera目录按照如下步骤配置,以配置sensor ov5640为例可以通过在两个文件夹中增加sensor的配置，实现自动匹配sensor。主要修改以下几个地方：1. 将驱动代码文件放到vendor/sprd/open-source/libs/libcamera/sensor目录下, 主要有：sensor_ov5640.c sensor_ov5640_mipi.c sensor_ov5640_mipi_raw.c sensor_ov5640_raw.c sensor_ov5640_raw_param.c CameraCamera配置配置2. 修改文件vendor/spr

29、d/open-source/libs/libcamera/sc8830/src/sensor_cfg.c在const SENSOR_INFO_T* main_sensor_infor_tab或 sub_sensor_infor_tab中 增加对应驱动代码中的结构体变量如： g_ov5640_mipi_yuv_info, 并且增加声明：extern SENSOR_INFO_T g_ov5640_mipi_yuv_info;注意：放在main_sensor_infor_tab中最前面的sensor会最先匹配，所以我们一般把当前使用的sensor放在第一，这样可以节省sensor初始化的时间。 Ca

30、meraCamera配置配置3. 在vendor/sprd/open-source/libs/libcamera/Camera.mk和Camera_Utest.mk文件中，在对应的工程中增加要编译的驱动代码 ifeq ($(strip $(TARGET_BOARD_PLATFORM),sc8830)LOCAL_C_INCLUDES := $(LOCAL_PATH)/ispvideo$(LOCAL_PATH)/vsp/sc8830/inc .LOCAL_SRC_FILES:= sc8830/src/SprdOEMCamera.c .sensor/sensor_ov5640.c sensor/se

31、nsor_ov5640_mipi.c /将此驱动代码名称添加到编译目录CameraCamera配置配置4. I2C配置 路径kernel/arch/arm/mach-sc/board-sp7731gea.c确定设备使用哪组i2c并添加配置，例如：static struct i2c_board_info i2c0_boardinfo = I2C_BOARD_INFO(sensor_main,0 x3C), I2C_BOARD_INFO(sensor_sub,0 x21),; CameraCamera配置配置 . 40Camera 相关配置相关配置5. 在文件device/sprd/scx35_s

32、p7731gea/BoardConfig.mk中 (1) #snesor interfaceTARGET_BOARD_BACK_CAMERA_INTERFACE := mipiTARGET_BOARD_FRONT_CAMERA_INTERFACE := mipi(2) # select camera 2M,3M,5M,8MCAMERA_SUPPORT_SIZE := 8MFRONT_CAMERA_SUPPORT_SIZE := 3M(3) 相关功能开关配置有/无前摄TARGET_BOARD_NO_FRONT_SENSOR := falseZSL开/关 #select camera zsl ca

33、p modeTARGET_BOARD_CAMERA_CAPTURE_MODE := false开/关Capture Rotation #rotation captureTARGET_BOARD_CAMERA_ROTATION_CAPTURE := falseCameraCamera配置配置 . 416. Camera视频录制size配置参考路径：device/sprd/scx35_sp7731gea/media_profiles.xmlAndroid原生配置格式如下： /主camera配置 /编码属性，最小size /录制视频码率 /编码属性，最大size CameraCamera配置配置Ca

34、meraCamera配置视频录制size配置方法以配置里面的参数为例，即主camera的配置。其中分别在前两项用quality=low和quality=high表示支持的最大和最小尺寸的录像，最大尺寸根据我们实际情况配置对应的尺寸，可以配置如下几个标准的尺寸： /176144 /352X288 /720480 /1280720 /19201080如我们默认配置最小录像size为176144，最大录像size是1080P， minBitRate=16000 maxBitRate=32000000 /比特率范围，和宽高尺寸对应 minFrameWidth=“176” maxFrameWidth=“

35、1920” /宽度范围，和前面的配置对应 minFrameHeight=“144” maxFrameHeight=“1080” /高度范围 minFrameRate=15 maxFrameRate=60 / /帧率范围修改好.xml文件后，将修改后的media_profiles.xml文件push到手机的/etc目录下，再重启手机就可以了，或者编译system.img烧进去也可以。保证文件SprdCameraHardwareConfig.h (vendor/sprd/open-source/ibs/libcamera/sc8830/inc)中sprd_back_camera_hardware_

36、config 里面preview-size-values配置参数和xml里面对应。即xml里面配置的最大size必须在preview-size-values的参数列表里面。 . 42 . 43CameraCamera配置配置CameraCamera配置 . 44L&Psensor客户化配置原理图L&Psensor客户化配置客户化配置1. 作为input设备，相应驱动文件均放在kernel/drivers/input/misc/目录下kernel/drivers/input/misc/ltr_558als.c2. 相应的头文件路径：kernel/include/linux/i2c

37、/ltr_558als.h3. 设备是否启用由Makefile，Kconfig，board对应的defconfig控制。(1). Makefileobj-$(CONFIG_INPUT_LTR558_I2C)+= ltr_558als.o(2). Kconfigconfig INPUT_LTR558_I2Ctristate LTR558 proximity and light sensor device with I2C busdepends on I2Cdefault nhelp Say Y here if you have a LTR558 device on the board and use I2C communication, else say N.L&Psensor客户化配置客户化配置(3). kernel/arch/arm/configs/sp7731gea-native_defconfig sp7731gea-native_defconfig中定义了设备及编译的模式：# CONFIG_INPUT_AL3006_I2C is not setCONFIG_INPUT_LTR558_I2C=y4. 配置i2c注册信息，如sp7731gea工程： (1). kernel/arch/arm/mach