2010年07月1日 | Wizzer | 评论 魅族官方提供了M8的Android内核源码，包含了完整的驱动以及说明，由于MEIZU M8的物理硬件和iPhone一样平时操作的只有1个Home键无法模拟，Android的Back、Menu以及其他因素魅族放弃了M8跑Android的计划。由于M8使用的是Samsung ARM11内核的S3C6410工作频率为667MHz，山寨厂商有一定的借鉴价值。 有关魅族M8的ADB驱动 http://m8-android-kernel.googlecode.com/files/M8_6410_adb_driver.rar M8的Android编译好固件下载，刷机方法和Wince的一致，下载后直接解压放到USB Storage的根目录 http://code.google.com/p/m8-android-kernel/source/browse/bin/m8_android.rar M8 for Android源码托管在Google Code上面，使用SVN工具直接提取 浏览地址 http://code.google.com/p/m8-android-kernel/source/browse/#svn/trunk 需要注意的是Android开发网发现有关Modem这块代码没有，涉及到了英飞凌的机密，不过可以看到编译好的库，直接挂上即可。 SVN Checkout地址 http://m8-android-kernel.googlecode.com/svn/trunk 最后是Android123找到的有关M8的移植文章网上整理的word文档，有兴趣的网友可以DIY下，不过Android开发网表示Android和M8原始的Wince比较差距较大，个人还是建议使用完善的WinCE系统，毕竟可以直播RMVB、WinCE对于M8更适合些。 1. make menuconfig A. 串口改成串口3输出打印信息。 (一) (root=/dev/nfs init=/init nfsroot=192.168.1.10:/nfs ip=192.168.1.100 console=ttySAC2,115200 console=ttySAC2,串口2输出，必须与下面同时修改 (二) System Type —>S3C UART to use for low-level messages—>2 值设成2，即串口2输出，必须与上面同时修改。 B. Onenand驱动支持 (一) Device Drivers —>Memory Technology Device (MTD) support —>OneNAND Device Support —> [*] Verify OneNAND page writes <*> OneNAND Flash device via platform device driver (二) onenand的支持 从贺超提供的linux2.6.27包drivers\mtd\onenand目录复制s3c6410.h，s3c_onenand.c，s3c_onenand.h提供对三星onenand的支持 (三) Makefile修改 drivers\mtd\onenand\Makefile文件最后添加一行：onenand-objs = s3c_onenand.o，编译s3c_onenand.o,连接进内核。 (四) 在arch\arm\mach-s3c6410\mach-smdk6410.c中 static struct platform_device pmem_gpu1_device = { .name = “android_pmem”, .id = 1, .dev = { .platform_data = &pmem_gpu1_pdata }, }; #endif 的后面添加代码： /*add by liuyihui 2009-08-21*/ /* *添加onenand驱动支持 */ /* OneNAND Controller */ /* OneNAND flash controller */ #define S3C64XX_PA_ONENAND (0x70100000) #define S3C64XX_SZ_ONENAND SZ_1M static struct resource s3c_onenand_resource[] = { [0] = { .start = S3C64XX_PA_ONENAND, .end = S3C64XX_PA_ONENAND + S3C64XX_SZ_ONENAND – 1, .flags = IORESOURCE_MEM, } }; 或者替换新的代码： arch\arm\plat-s3c64xx\devs.c， linux/arch/arm/mach-s3c6400/include/mach/map.h struct platform_device s3c_device_onenand = { .name = “onenand”, .id = -1, .num_resources = ARRAY_SIZE(s3c_onenand_resource), .resource = s3c_onenand_resource, .dev.platform_data = &s3c_nand_mtd_part_info }; /*add end*/ 在数组static struct platform_device *smdk6410_devices[] __initdata = {的最后添加： &s3c_device_onenand /*add by liuyihui 2009-08-21*/ (五) 分区表修改：使userdata从0x0a000000开始 文件linux/arch/arm/plat-s3c/include/plat/partition.h中： { .name = “cache”, .offset = MTDPART_OFS_APPEND, .size = (67*SZ_1M)+0x1000000,//orig:(67*SZ_1M)/*modified by cefanty 2009-08-21*/ }, (六) 修改drivers\mtd\onenand\generic.c 复制drivers\mtd\onenand\generic.c替换掉。 C. Device Drivers —>Input device support —> [] Keyboards —> (一) 暂时去掉键盘支持，因为键盘占用了GPK14口，GPK14口在M8是USB供电开关的GPIO，拉高才能用USB D. Device Drivers —> [*] USB support —> <*> USB Gadget Support —> (一) <*> USB Gadget Drivers (Ethernet Gadget (with CDC Ethernet supp (二) Ethernet Gadget (with CDC Ethernet support) (三) [ ] RNDIS support (四) d.1)选择Ethernet Gadget (with CDC Ethernet supp，用于把M8模拟成网卡，实现nfs挂载系统。同时去掉RNDIS support支持，因为ubuntu下没有驱动支持。 (五) drivers\usb\gadget\s3c-udc-otg-hs.c修改为USB使用外部晶振 //writel(0x20, S3C_USBOTG_PHYCLK); /*commented by liuyihui 2009-08-24*/ writel(0x00, S3C_USBOTG_PHYCLK); /*00:USB使用外部晶振。modified by liuyihui 2009-08-24*/ 2. 驱动移植和修改 A. LCD驱动移植 i. drivers\video\Kconfig，搜索config FB_S3C_LTS222QV，在后面添加如下选项 config FB_S3C_LMS340KC01 bool “LMS340KC01” —help— TBA ii. 添加驱动：drivers\video\samsung\s3cfb_lms340kc01.c a) 复制刘奕辉开发的s3cfb_lms340kc01.c驱动到目录drivers\video\samsung\ b) 在drivers\video\samsung\Makefile文件最后添加内容： obj-$(CONFIG_FB_S3C_LMS340KC01) += s3cfb_lms340kc01.o iii. 修改drivers\video\samsung\s3cfb_fimd4x.c，在函数s3cfb_set_gpio最后注释代码，添加： #if 0/*commented by liuyihui 2009-08-24*/ /* module reset */ if (gpio_is_valid(S3C64XX_GPN(5))) { err = gpio_request(S3C64XX_GPN(5), “GPN”); if (err) { printk(KERN_ERR “failed to request GPN for ” “lcd reset control\n”); return err; } gpio_direction_output(S3C64XX_GPN(5), 1); } mdelay(100); gpio_set_value(S3C64XX_GPN(5), 0); mdelay(10); gpio_set_value(S3C64XX_GPN(5), 1); mdelay(10); gpio_free(S3C64XX_GPF(15)); gpio_free(S3C64XX_GPN(5)); #endif /*add by liuyihui 2009-08-24*/ /* *打开M8 LCD需要用到的GPIO口 */ #if 1 //M8 GPIO set hight /* module reset *///LCD_nRESET_SHIFT/*4*/ if (gpio_is_valid(S3C64XX_GPQ(4))) { err = gpio_request(S3C64XX_GPQ(4), “GPQ”); if (err) { printk(KERN_ERR “failed to request GPQ for ” “lcd reset control\n”); return err; } gpio_direction_output(S3C64XX_GPQ(4), 1); } mdelay(100); gpio_free(S3C64XX_GPQ(4)); /* module reset *///LCD_nSS_SHIFT/*5*/ if (gpio_is_valid(S3C64XX_GPQ(5))) { err = gpio_request(S3C64XX_GPQ(5), “GPQ”); if (err) { printk(KERN_ERR “failed to request GPQ for ” “lcd reset control\n”); return err; } gpio_direction_output(S3C64XX_GPQ(5), 0); } mdelay(100); gpio_free(S3C64XX_GPQ(5)); /* module reset *///LCD_MOSI_SHIFT/*7*/ if (gpio_is_valid(S3C64XX_GPQ(6))) { err = gpio_request(S3C64XX_GPQ(6), “GPQ”); if (err) { printk(KERN_ERR “failed to request GPQ for ” “lcd reset control\n”); return err; } gpio_direction_output(S3C64XX_GPQ(6), 1); } mdelay(100); gpio_free(S3C64XX_GPQ(6)); /* module reset *///LCD_MOSI_SHIFT/*7*/ if (gpio_is_valid(S3C64XX_GPQ(7))) { err = gpio_request(S3C64XX_GPQ(7), “GPQ”); if (err) { printk(KERN_ERR “failed to request GPQ for ” “lcd reset control\n”); return err; } gpio_direction_output(S3C64XX_GPQ(7), 1); } mdelay(100); gpio_free(S3C64XX_GPQ(7)); /* module reset *///LCD_CLK_SHIFT/*8*/ if (gpio_is_valid(S3C64XX_GPQ(8))) { err = gpio_request(S3C64XX_GPQ(8), “GPQ”); if (err) { printk(KERN_ERR “failed to request GPQ for ” “lcd reset control\n”); return err; } gpio_direction_output(S3C64XX_GPQ(8), 1); } mdelay(100); gpio_free(S3C64XX_GPQ(8)); #endif return 0; } /*add end*/ c) iv. 修改drivers\video\samsung\s3cfb_spi.c，在函数s3cfb_set_gpio最后注释代码，添加： 在代码#elif defined(CONFIG_PLAT_S3C64XX)后面添加： #define MEIZU_M8 #ifdef MEIZU_M8 #define S3C_FB_SPI_CLK(x) (S3C64XX_GPQ(8 + ( 4))) #define S3C_FB_SPI_MOSI(x) (S3C64XX_GPQ(7 + (4))) #define S3C_FB_SPI_CS(x) (S3C64XX_GPQ(6 + (4))) #else #define S3C_FB_SPI_CLK(x) (S3C64XX_GPC(1 + (ch * 4))) #define S3C_FB_SPI_MOSI(x) (S3C64XX_GPC(2 + (ch * 4))) #define S3C_FB_SPI_CS(x) (S3C64XX_GPC(3 + (ch * 4))) #endif B. 触摸屏移植 drivers\input\touchscreen：synaptics510_i2c.c，synaptics510_i2c.h，Makefile，Kconfig C. 按键移植 覆盖如下文件：目录drivers\input\keyboard\下的：gpio_keys.c 3. Busybox在Android上的使用 To build busybox • Download the latest version of busybox from the following website. At the time of writing the latest version was v.1.13.3. http://www.busybox.net • Extract the busybox source: tar jxf busybox-1.13.3.tar.bz2 • Configure busybox by running menuconfig cd busybox-1.13.3/ make menuconfig • In menuconfig set the following options Busybox Settings –> Build Options –> Build Busybox as a static binary (no shared libs) – Enable this option by pressing “Y” Busybox Settings –> Build Options –> Cross compiler prefix – Set this option equal to “arm-none-linux-gnueabi-” Busybox Settings –> Installation Options –> Don’t use /usr – Enable this option by pressing “Y” Linux Module Utilities —> [ ] Simplified modutils 这项不能选，否则insmod 驱动模块加载会提示找不到*.ko驱动文件的路径 • Export path to where the cross-compiler is located on the host, for example: export PATH=/opt/arm/arm-2007q3/bin:$PATH • Build busybox make Installing Busybox ________________________________________ To install busybox in the target file-system • Create a /bin directory in the target file-system. For example: mkdir /<path-to-android-fs>/bin • Copy the busybox binary to the /bin directory in the target file-system cp busybox /<path-to-android-fs>/bin • Install the busybox command line tools on the target by executing the following commands: cd /bin ./busybox –install Make the Busybox shell the default shell ________________________________________ To make the busybox shell the default shell, edit the file “init.rc” in the target file-system as follows: • Edit the console service so that it runs the busybox shell and not the default shell by replacing: service console /system/bin/sh With: service console /bin/sh • Add the path of the busybox command line tools to the system path variable by replacing: export PATH /sbin:/system/sbin:/system/bin:/system/xbin With export PATH /bin:/sbin:/system/sbin:/system/bin:/system/xbin Android cupcake 1.5版移植 1. 在Android挂载SD移植 cupcake 1.5版需要改写下列文件。 A. 编译mountd，并在文件系统中启动这一服务。 修改 system/core/mountd/Android.mk文件，开放最后一行 # disabled – we are using vold now instead ＃ include $(BUILD_EXECUTABLE) 为： # disabled – we are using vold now instead include $(BUILD_EXECUTABLE) B. 增加 安装mountd.conf 文件 修改 system/core/rootdir/init.rc文件 释放下两行： service mountd /system/bin/mountd socket mountd stream 0660 root mount C. 修改 system/core/rootdir/Android.mk 文件， 增加 etc/mountd.conf \，如下： copy_from := \ etc/dbus.conf \ etc/init.goldfish.sh \ etc/mountd.conf \ etc/hosts D. 修改根文件系统的system\etc \mountd.conf文件： block_device /dev/block/mmcblk0 1,095 total views, 4 views today