WhyCan Forum(哇酷开发者社区)

Device Drivers  --->
	Graphics support  --->
		 Frame buffer Devices  --->
		 	<*> Samsung S3C framebuffer support  //在配置上还是有这个，那样只要把设备端配置好就行
 [*] Bootup logo  --->	

exynosdrm-$(CONFIG_DRM_EXYNOS_FIMD)	+= exynos_drm_fimd.o
exynosdrm-$(CONFIG_DRM_EXYNOS_DPI)	+= exynos_drm_dpi.o

Device Drivers  ---> 
	Graphics support  --->
		Direct Rendering Manager  ---> 
			<*> Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)  ---> 
				[*]     Exynos DRM FIMD
 				[*]     EXYNOS DRM parallel output support

fimd: fimd@11c00000 {
		compatible = "samsung,exynos4210-fimd";
		interrupt-parent = <&combiner>;
		reg = <0x11c00000 0x20000>;
		interrupt-names = "fifo", "vsync", "lcd_sys";
		interrupts = <11 0>, <11 1>, <11 2>;
		clocks = <&clock CLK_SCLK_FIMD0>, <&clock CLK_FIMD0>;
		clock-names = "sclk_fimd", "fimd";
		power-domains = <&pd_lcd0>;
		iommus = <&sysmmu_fimd0>;
		samsung,sysreg = <&sys_reg>;
		status = "disabled"; 
	};

&fimd {
		pinctrl-0 = <&lcd_clk &lcd_data24 &pwm1_out>;
		pinctrl-names = "default";
		samsung,invert-vclk;     //vclk翻转
		status = "okay";
	};

display-timings {
		native-mode = <&timing0>;
		timing0: timing {
		  pixelclk-active = <1>;
			clock-frequency = <33000000>;
			hactive = <800>;
			vactive = <480>;
			hfront-porch = <80>;
			hback-porch = <36>;
			hsync-len = <10>;
			vback-porch = <15>;
			vfront-porch = <1>;
			vsync-len = <8>;
		};
	};

[    1.475756] [drm] Initialized drm 1.1.0 20060810
[    1.481573] exynos-drm exynos-drm: bound 11c00000.fimd (ops fimd_component_ops)
[    1.486849] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    1.493444] [drm] No driver support for vblank timestamp query.
[    1.499351] [drm] Initialized exynos 1.0.0 20110530 on minor 0

&fimd {
		pinctrl-0 = <&lcd_clk &lcd_data24 &pwm1_out>;
		pinctrl-names = "default";
		samsung,invert-vclk;
		status = "okay";
		display-timings {
		native-mode = <&timing0>;
		timing0: timing {
		  pixelclk-active = <1>;
			clock-frequency = <33000000>;
			hactive = <800>;
			vactive = <480>;
			hfront-porch = <80>;
			hback-porch = <36>;
			hsync-len = <10>;
			vback-porch = <15>;
			vfront-porch = <1>;
			vsync-len = <8>;
		};
	};
};

[    1.469053] [drm] Initialized drm 1.1.0 20060810
[    1.473455] drivers/gpu/drm/exynos/exynos_drm_fimd.c fimd_probe 999
[    1.479165] lcd_clk = 1500000  添加的打印信息
[    1.561894] exynos-drm exynos-drm: bound 11c00000.fimd (ops fimd_component_ops)
[    1.569049] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    1.575641] [drm] No driver support for vblank timestamp query.
[    1.591038] Console: switching to colour frame buffer device 114x34
[    1.595286] exynos-drm exynos-drm: fb0:  frame buffer device  （看到这一句就表示创建出fb0了）
[    1.595342] exynos-drm exynos-drm: registered panic notifier
[    1.614515] [drm] Initialized exynos 1.0.0 20110530 on minor 0
....  //中间省略

Myroot /# cat /sys/class/graphics/fb0/virtual_size
800,480  //打印出来的信息对应hactive = <800>;vactive = <480>;也就是说设置成功了。

	
static void __init exynos4_clk_init(struct device_node *np,enum exynos4_soc soc)
    {
    struct clk *mout_mpll_user_t 	= NULL;
	struct clk *mount_fimd0 	= NULL;
	struct clk *sclk_fimd0  	= NULL;    
    .....
    /* Frequency up to 800Mhz */
	/* code start... */
    	pr_info("%s %s %d\n",__FILE__,__FUNCTION__,__LINE__);
	mout_mpll_user_t = __clk_lookup("mout_mpll_user_t");
	if (IS_ERR(mout_mpll_user_t)) {
		pr_info("failed to get mout_mpll_user_t clock\n");
		return;
	}
	pr_info("%s %s %d\n",__FILE__,__FUNCTION__,__LINE__);
	mount_fimd0 = __clk_lookup("mout_fimd0");
	if (IS_ERR(mount_fimd0)) {
		pr_info("failed to get mout_fimd0 clock\n");
		return ;
	}
	pr_info("%s %s %d\n",__FILE__,__FUNCTION__,__LINE__);
	sclk_fimd0 = __clk_lookup("sclk_fimd0");
	if (IS_ERR(sclk_fimd0)) {
		pr_info("failed to get sclk_fimd0 clock\n");
		return ;
	}
	clk_set_parent(mount_fimd0,mout_mpll_user_t);
	
	ret = clk_set_rate(mount_fimd0,800000000);
	if(ret){
		pr_info("failed to clock set rate\n");	
		return ;
	}
	pr_info("%s %s %d\n",__FILE__,__FUNCTION__,__LINE__);
	ret = clk_set_rate(sclk_fimd0,800000000);
	if(ret){
		pr_info("failed to clock set rate\n");	
		return ;
	}

	pr_info("mout_mpll_user_t = %ld mount_fimd0 = %ld sclk_fimd0 = %ld\n",clk_get_rate(mout_mpll_user_t),clk_get_rate(mount_fimd0),clk_get_rate(sclk_fimd0));
	 /* code end... */
}

[    1.605811] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    1.612402] [drm] No driver support for vblank timestamp query.
[    1.622973] lcd_clk = 800000000     //成功升频到800Mhz
[    1.627903] Console: switching to colour frame buffer device 114x34
[    1.659366] exynos-drm exynos-drm: fb0:  frame buffer device
[    1.665007] exynos-drm exynos-drm: registered panic notifier
[    1.684532] [drm] Initialized exynos 1.0.0 20110530 on minor 0

&fimd {
	pinctrl-0 = <&lcd_clk &lcd_data24>;
	pinctrl-names = "default";
	status = "okay";
	samsung,invert-vclk;   //翻转
	display-timings {
		native-mode = <&timing0>;
		timing0: timing {
			hsync-active = <1>;   //行同步信号开始位高
			vsync-active = <1>;
			de-active = <0>;									
			clock-frequency = <33000000>;
			hactive = <800>;
			vactive = <480>;
			hfront-porch = <80>;
			hback-porch = <36>;
			hsync-len = <10>;
			vback-porch = <15>;
			vfront-porch = <1>;
			vsync-len = <8>;
		};
	};
};

root@book-virtual-machine:~# cp /etc/apt/sources.list /etc/apt/sources.list.back
root@book-virtual-machine:~# vim /etc/apt/sources.list
    # 默认注释了源码镜像以提高apt update速度，如有需要可自行取消注释
    deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ precise main restricted universe multiverse
    # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ precise main restricted universe multiverse
    deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ precise-updates main restricted universe multiverse
    # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ precise-updates main restricted universe multiverse
    deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ precise-backports main restricted universe multiverse
    # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ precise-backports main restricted universe multiverse
    deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ precise-security main restricted universe multiverse
    # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ precise-security main restricted universe multiverse

    # 预发布软件源，不建议启用
    # deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ precise-proposed main restricted universe multiverse
    # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ precise-proposed main restricted universe multiverse

root@book-virtual-machine:~# vim /etc/resolv.conf
nameserver 127.0.0.1
nameserver 101.6.6.6 #清华大学开源软件镜像站 DNS地址
root@book-virtual-machine:~# apt-get clean
root@book-virtual-machine:~# apt-get update

book@book-virtual-machine:~$ sudo apt-get install git-core python-setuptools

cd ~/src
git clone https://github.com/tv42/gitosis.git
cd gitosis
python setup.py install

root@book-virtual-machine:/home/book# adduser git
Adding user `git' ...
Adding new group `git' (1001) ...
Adding new user `git' (1001) with group `git' ...
Creating home directory `/home/git' ...
Copying files from `/etc/skel' ...
Enter new UNIX password: 
Retype new UNIX password: 
Sorry, passwords do not match
passwd: Authentication token manipulation error
passwd: password unchanged
Try again? [y/N] y
Enter new UNIX password: 
Retype new UNIX password: 
passwd: password updated successfully
Changing the user information for git
Enter the new value, or press ENTER for the default
    Full Name []: 
    Room Number []: 
    Work Phone []: 
    Home Phone []: 
    Other []: 
Is the information correct? [Y/n]

book@book-virtual-machine:~$ sudo apt-get install openssh-server openssh-client

book@book-virtual-machine:/$ sudo vim /etc/ssh/sshd_config
/***加大key的位数***/
ServerKeyBits 768    --->  ServerKeyBits 1024
/***禁止root用户登录***/
PermitRootLogin yes  ---> PermitRootLogin no
/***打开AuthorizedKeysFile ***/
AuthorizedKeysFile      %h/.ssh/authorized_keys

git@book-virtual-machine:~$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/git/.ssh/id_rsa): 
Created directory '/home/git/.ssh'.
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /home/git/.ssh/id_rsa.
Your public key has been saved in /home/git/.ssh/id_rsa.pub.
The key fingerprint is:
c5:36:b1:87:04:ff:97:6a:de:08:f6:5f:05:20:a8:0b git@book-virtual-machine
The key's randomart image is:
+--[ RSA 2048]----+
|        .o+ .    |
|        .+ = .   |
|       .  O . .  |
|    E .  o +   o |
|     . .S   . o .|
|      .      o  .|
|          o o   .|
|         . = o . |
|            +.o  |
+-----------------+

git config --global user.name "git"
git config --global user.email "xxx@xxx.com"

git@book-virtual-machine:~$ gitosis-init < ~/.ssh/id_rsa.pub 
Initialized empty Git repository in /home/git/repositories/gitosis-admin.git/
Reinitialized existing Git repository in /home/git/repositories/gitosis-admin.git/

git@book-virtual-machine:~$ ls
gitosis  repositories

git@book-virtual-machine:~$ chmod 755 ~/repositories/gitosis-admin.git/hooks/post-update

git@book-virtual-machine:~$ ssh git@192.168.1.123
The authenticity of host '192.168.1.123 (192.168.1.123)' can't be established.
ECDSA key fingerprint is df:20:21:5c:73:76:b8:32:13:31:47:19:1f:ef:fc:fb.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.1.123' (ECDSA) to the list of known hosts.
PTY allocation request failed on channel 0
ERROR:gitosis.serve.main:Need SSH_ORIGINAL_COMMAND in environment.
Connection to 192.168.1.123 closed.

git@book-virtual-machine:/work/management$ git clone git@192.168.1.123:gitosis-admin.git
Cloning into 'gitosis-admin'...
remote: Counting objects: 5, done.
remote: Compressing objects: 100% (5/5), done.
remote: Total 5 (delta 0), reused 5 (delta 0)
Receiving objects: 100% (5/5), done.
git@book-virtual-machine:/work/management$ ls
gitosis-admin

git@book-virtual-machine:~/repositories$ mkdir test.git
git@book-virtual-machine:~/repositories$ ls
gitosis-admin.git  test.git

git@book-virtual-machine:~/repositories$ cd test.git/
git@book-virtual-machine:~/repositories/test.git$ git init --bare
Initialized empty Git repository in /home/git/repositories/test.git/

git@book-virtual-machine:/work/management/gitosis-admin$ ls
gitosis.conf  keydir
git@book-virtual-machine:/work/management/gitosis-admin$ vim gitosis.conf
[gitosis]

[group gitosis-admin]
members = git@book-virtual-machine
writable = gitosis-admin
/*- 添加test仓库和book用户，格式仿上面即可，更溜玩法请百度 -*/
[group test]
members = book@book-virtual-machine
writable = test

book@book-virtual-machine:~$ cd ~
book@book-virtual-machine:~$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/book/.ssh/id_rsa): 
Created directory '/home/book/.ssh'.
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /home/book/.ssh/id_rsa.
Your public key has been saved in /home/book/.ssh/id_rsa.pub.
The key fingerprint is:
86:a8:42:1e:a2:77:4f:92:7f:00:eb:c4:7f:5a:9d:8c book@book-virtual-machine
The key's randomart image is:
+--[ RSA 2048]----+
|                 |
|                 |
|                 |
|    .. .         |
|.o ..o. S        |
|= ..+... + .     |
|o.oo+...E +      |
| o ..=..o        |
|      ++         |
+-----------------+

book@book-virtual-machine:~$ sudo cp .ssh/id_rsa.pub /work/management/gitosis-admin/keydir/book@book-virtual-machine.pub

git@book-virtual-machine:/work/management/gitosis-admin$ git status
# On branch master
# Changes not staged for commit:
#   (use "git add <file>..." to update what will be committed)
#   (use "git checkout -- <file>..." to discard changes in working directory)
#
#   modified:   gitosis.conf
#
# Untracked files:
#   (use "git add <file>..." to include in what will be committed)
#
#   keydir/book@book-virtual-machine.pub
no changes added to commit (use "git add" and/or "git commit -a")
git@book-virtual-machine:/work/management/gitosis-admin$ git add .
git@book-virtual-machine:/work/management/gitosis-admin$ git commit -m "add test"
git@book-virtual-machine:/work/management/gitosis-admin$ git pushCounting objects: 8, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (5/5), done.
Writing objects: 100% (5/5), 796 bytes, done.
Total 5 (delta 0), reused 0 (delta 0)
To git@192.168.1.123:gitosis-admin.git
   756407b..0a43978  master -> master

book@book-virtual-machine:/work$ git clone git@192.168.1.123:test.git
Cloning into 'test'...
The authenticity of host '192.168.1.123 (192.168.1.123)' can't be established.
ECDSA key fingerprint is df:20:21:5c:73:76:b8:32:13:31:47:19:1f:ef:fc:fb.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.1.123' (ECDSA) to the list of known hosts.
warning: You appear to have cloned an empty repository.
book@book-virtual-machine:/work$ ls
management  test