skyeye下成功运行lcd程序
2010-03-02 19:37
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呵呵，往往在经过很复杂的过程之后，回头却发现原来确实如此的简单，为了直观的看到skyeye的仿真效果（呵呵，主要
还是经济原因啊，开发板买不起啊），于是就心血来潮的想要作s3c2410的lcd实验，说起来容易，首先是一直linux内核，
现在的linux内核中已经支持了s3c2410的板子，所以只要作少量的修改即可，然后编写lcd_show.c，最后编译该程序，加
在到linux中，skyeye仿真，但是实际的过程确实相当的困难啊
最初的尝试就是按照上面的思路来的，在网上找了许多的资料
http://www.linuxfans.org/bbs/thread-182101-1-1.html linux内核在skyeye上移植 http://www.linuxfans.org/bbs/thread-182082-1-1.html skyeye上lcd移植 http://www.diybl.com/course/6_system/linux/Linuxjs/200896/139481.html linux上lcd去的驱动
第一次配置内核
make menuconfig
make
最终得到的vmlinux竟然５Ｍ还多，于是打算放弃，重新编译linux内核，在第二次编译内核时，删减了大量的无用的driver，
make时，出现一大堆错误，无奈，又经过了几次的尝试还是没有成功，于是放弃了自己现在编译内核的做法，打算使用
skyeye-testuites中的编译好的内核，最终终于找到了一个包含了lcd驱动的linux内核，下载之，编写lcd_show.c
#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
#include <linux/fb.h>
#include <sys/mman.h>
#define RED_COLOR332 0xE0
#define GREEN_COLOR332 0x1C
#define BLUE_COLOR332 0x03
#define RED_COLOR565 0x0F100
#define GREEN_COLOR565 0x007E0
#define BLUE_COLOR565 0x0001F
int main(int argc, char **argv)
{
int fbfd = 0;
struct fb_var_screeninfo vinfo;
struct fb_fix_screeninfo finfo;
long int screensize = 0;
short *fbp565 = 0;
char *fbp332 = 0;
int x = 0, y = 0;
long int location = 0;
// open the file for reading and writing
fbfd = open("/dev/fb0", O_RDWR);
if (!fbfd) {
printf("Error: cannot open framebuffer device./n");
exit(1);
}
printf("The framebuffer device was opened successfully./n");
// get fixed screen information
if (ioctl(fbfd, FBIOGET_FSCREENINFO, &finfo)) {
printf("Error reading fixed information./n");
exit(2);
}
// get variable screen information
if (ioctl(fbfd, FBIOGET_VSCREENINFO, &vinfo)) {
printf("Error reading variable information./n");
exit(3);
}
// figure out the size of the screen in bytes
screensize = vinfo.xres * vinfo.yres * vinfo.bits_per_pixel / 8;
printf("%dx%d, %dbpp, screensize = %d/n", vinfo.xres, vinfo.yres, vinfo.bits_per_pixel, screensize );
// map the device to memory
fbp332 = (char *)mmap(0, screensize, PROT_READ | PROT_WRITE, MAP_SHARED,
fbfd, 0);
fbp565 = (short*)fbp332;
if ((int)fbp332 == -1) {
printf("Error: failed to map framebuffer device to memory./n");
exit(4);
}
printf("The framebuffer device was mapped to memory successfully./n");
x = 100; y = 100; // Where we are going to put the pixel
if(vinfo.bits_per_pixel == 16) // 8bpp only
{
// 8bpp framebuffer test
printf("16 bpp framebuffer test/n");
printf("a byte in fbp is a pixel of LCD, just set the value of fbp to put color to LCD/n");
printf("byte format:/n");
printf(" bit:| 7 6 5 | 4 3 2 | 1 0 |/n");
printf(" | red | green | blue |/n");
// red Screen
printf("Red Screen/n");
for(y = 0; y < vinfo.yres/3; y++)
{
for(x = 0; x < vinfo.xres ; x++)
{
*(fbp565 + y * vinfo.xres + x) = 0;
}
}
// green Screen
printf("Green Screen/n");
for(y = vinfo.yres/3; y < (vinfo.yres*2)/3; y++)
{
for(x = 0; x < vinfo.xres/2 - 59; x++)
{
*(fbp565 + y * vinfo.xres + x) =GREEN_COLOR565/2;
}
}
// blue Screen
printf("Blue Screen/n");
for(y = (vinfo.yres*2)/3; y < vinfo.yres; y++)
{
for(x = 0; x < vinfo.xres; x++)
{
*(fbp565 + y * vinfo.xres + x) = BLUE_COLOR565;
}
}
}
else if(vinfo.bits_per_pixel == 8)
{
// 8bpp framebuffer test
printf("8bpp framebuffer test/n");
printf("a byte in fbp is a pixel of LCD, just set the value of fbp to put color to LCD/n");
printf("byte format:/n");
printf(" bit:| 7 6 5 | 4 3 2 | 1 0 |/n");
printf(" | red | green | blue |/n");
// red Screen
printf("Red Screen/n");
for(y = 0; y < vinfo.yres/3; y++)
{
for(x = 0; x < vinfo.xres/2-100; x++)
{
*(fbp332 + y * vinfo.xres + x) = RED_COLOR332;
}
}
// green Screen
printf("Green Screen/n");
for(y = vinfo.yres/3; y < (vinfo.yres*2)/3; y++)
{
for(x = 0; x < vinfo.xres/2-50; x++)
{
*(fbp332 + y * vinfo.xres + x) = GREEN_COLOR332;
}
}
// blue Screen
printf("Blue Screen/n");
for(y = (vinfo.yres*2)/3; y < vinfo.yres; y++)
{
for(x = 0; x < vinfo.xres-10; x++)
{
*(fbp332 + y * vinfo.xres + x) = BLUE_COLOR332;
}
}
}
else
printf("8/16 bits only!/n");
munmap(fbp332, screensize);
close(fbfd);
return 0;
}
arm-linux-gcc -static -o lcd_show lcd_show.c
sudo mount -o loop initrd.img XXX (XXX -- your mount directory)
sudo cp lcd_show XXX/bin/
sudo umount XXX
skyeye -e vmlinux
xuqiang@ubuntu:~/Embedded/s3c2410x-2.6.14$ skyeye -e vmlinux
big_endian is false.
arch: arm
cpu info: armv4, arm920t, 41009200, ff00fff0, 2
mach info: name s3c2410x, mach_init addr 0x805f030
ethmod num=1, mac addr=0:4:3:2:1:f, hostip=10.0.0.1
failed to setup_module (name:net, type:cs8900a)
tapif_init: icotl TUNSETIFF errorlcd_mod:1
uart_mod:0, desc_in:, desc_out:, converter:
SKYEYE: use arm920t mmu ops
Loaded RAM ./initrd.img
start addr is set to 0xc0008000 by exec file.
Linux version 2.6.14 (root@lee) (gcc version 3.4.6) #48 Sat Feb 10 06:29:17 CST 2007
CPU: ARM920Tid(wb) [41009200] revision 0 (ARMvundefined/unknown)
Machine: SMDK2410
Warning: bad configuration page, trying to continue
Memory policy: ECC disabled, Data cache writeback
CPU S3C2410 (id 0x32410000)
S3C2410: core 62.400 MHz, memory 62.400 MHz, peripheral 62.400 MHz
S3C2410 Clocks, (c) 2004 Simtec Electronics
CLOCK: Slow mode (1.500 MHz), fast, MPLL on, UPLL on
CPU0: D VIVT write-back cache
CPU0: I cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets
CPU0: D cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets
Built 1 zonelists
Kernel command line: mem=32M console=ttySAC0 root=/dev/ram initrd=0xc0800000,0x00800000 ramdisk_size=2048 rw
PID hash table entries: 256 (order: 8, 4096 bytes)
timer tcon=00000000, tcnt cb1f, tcfg 00000200,00000000, usec 0000189e
Console: colour dummy device 80x30
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 32MB = 32MB total
Memory: 22168KB available (1510K code, 373K data, 100K init)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
checking if image is initramfs...it isn't (bad gzip magic numbers); looks like an initrd
softlockup thread 0 started up.
Freeing initrd memory: 8192K
NET: Registered protocol family 16
S3C2410: Initialising architecture
S3C2410 DMA Driver, (c) 2003-2004 Simtec Electronics
DMA channel 0 at c2800000, irq 33
DMA channel 1 at c2800040, irq 34
DMA channel 2 at c2800080, irq 35
DMA channel 3 at c28000c0, irq 36
NetWinder Floating Point Emulator V0.97 (double precision)
ERROR: s3c2410x_io_write_word(0x4d000060) = 0x00000000
ERROR: s3c2410x_io_write_word(0x4d000050) = 0x00000000
[GTK_LCD]: Can't find LCD DMA from address 0x0
ERROR: s3c2410x_io_write_word(0x4d000060) = 0x00000000
ERROR: s3c2410x_io_write_word(0x4d000050) = 0x00000000
Console: switching to colour frame buffer device 40x29
fb0: s3c2410fb frame buffer device
S3C2410 RTC, (c) 2004 Simtec Electronics
Software Watchdog Timer: 0.07 initialized. soft_noboot=0 soft_margin=60 sec (nowayout= 0)
ttySAC0 at MMIO 0x50000000 (irq = 70) is a S3C2410
ttySAC1 at MMIO 0x50004000 (irq = 73) is a S3C2410
ttySAC2 at MMIO 0x50008000 (irq = 76) is a S3C2410
io scheduler noop registered
io scheduler deadline registered
RAMDISK driver initialized: 16 RAM disks of 2048K size 1024 blocksize
cs89x0:cs89x0_probe(0x0)
ERROR: s3c2410x_io_write_word(0x1900030a) = 0x00000000
cs89x0: no cs8900 or cs8920 detected. Be sure to disable PnP with SETUP
mice: PS/2 mouse device common for all mice
NET: Registered protocol family 2
IP route cache hash table entries: 512 (order: -1, 2048 bytes)
TCP established hash table entries: 2048 (order: 1, 8192 bytes)
TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 2048 bind 2048)
TCP reno registered
TCP bic registered
NET: Registered protocol family 1
RAMDISK: ext2 filesystem found at block 0
RAMDISK: Loading 2048KiB [1 disk] into ram disk... done.
VFS: Mounted root (ext2 filesystem).
Freeing init memory: 100K
init started: BusyBox v1.4.1 (2007-02-10 01:19:06 CST) multi-call binary
Starting pid 19, console /dev/console: '/etc/init.d/rcS'
ifconfig: SIOCSIFADDR: No such device
Welcome to
_ _____ __ __ _ _
/ / / __ / / /_/ / | | |_|
/ _ / | | | | / // // / | | _ ____ _ _ _ _
/ /_/ / | |__| | / / /_/ / /| | | | _ /| | | |/ // /
/ /___/ / | |__/ / | | | || |___ | | |_| | |_| |/ /
/_/ /_/| | /_/|_| |_||_____||_|_| |_|/____|/_//_/
ARMLinux for Skyeye
For further information please check:
http://www.skyeye.org/
BusyBox v1.4.1 (2007-02-10 01:19:06 CST) Built-in shell (ash)
Enter 'help' for a list of built-in commands.
/bin/ash: can't access tty; job control turned off
/ $ cd bin
/bin $ ./lcd_show
The framebuffer device was opened successfully.
240x320, 16bpp, screensize = 153600
The framebuffer device was mapped to memory successfully.
16 bpp framebuffer test
a byte in fbp is a pixel of LCD, just set the value of fbp to put color to LCD
byte format:
bit:| 7 6 5 | 4 3 2 | 1 0 |
| red | green | blue |
Red Screen
Green Screen
Blue Screen
上面的整个工程可以在下面下载：
http://hi.csdn.net/link.php?url=http://xuqianghit.download.csdn.net
还有就是注意在编译lcd_show.c时，如果没有使用-static的话，即便在mount之后，拷贝到/bin下，skyeye模拟是存在
该文件，但是无法运行的，一般出现的错误是XXX : not found
最后就是需要说明的是最后使用ctrl + ｃ来结束仿真。
还是经济原因啊，开发板买不起啊），于是就心血来潮的想要作s3c2410的lcd实验，说起来容易，首先是一直linux内核，
现在的linux内核中已经支持了s3c2410的板子，所以只要作少量的修改即可，然后编写lcd_show.c，最后编译该程序，加
在到linux中，skyeye仿真，但是实际的过程确实相当的困难啊
最初的尝试就是按照上面的思路来的，在网上找了许多的资料
http://www.linuxfans.org/bbs/thread-182101-1-1.html linux内核在skyeye上移植 http://www.linuxfans.org/bbs/thread-182082-1-1.html skyeye上lcd移植 http://www.diybl.com/course/6_system/linux/Linuxjs/200896/139481.html linux上lcd去的驱动
第一次配置内核
make menuconfig
make
最终得到的vmlinux竟然５Ｍ还多，于是打算放弃，重新编译linux内核，在第二次编译内核时，删减了大量的无用的driver，
make时，出现一大堆错误，无奈，又经过了几次的尝试还是没有成功，于是放弃了自己现在编译内核的做法，打算使用
skyeye-testuites中的编译好的内核，最终终于找到了一个包含了lcd驱动的linux内核，下载之，编写lcd_show.c
#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
#include <linux/fb.h>
#include <sys/mman.h>
#define RED_COLOR332 0xE0
#define GREEN_COLOR332 0x1C
#define BLUE_COLOR332 0x03
#define RED_COLOR565 0x0F100
#define GREEN_COLOR565 0x007E0
#define BLUE_COLOR565 0x0001F
int main(int argc, char **argv)
{
int fbfd = 0;
struct fb_var_screeninfo vinfo;
struct fb_fix_screeninfo finfo;
long int screensize = 0;
short *fbp565 = 0;
char *fbp332 = 0;
int x = 0, y = 0;
long int location = 0;
// open the file for reading and writing
fbfd = open("/dev/fb0", O_RDWR);
if (!fbfd) {
printf("Error: cannot open framebuffer device./n");
exit(1);
}
printf("The framebuffer device was opened successfully./n");
// get fixed screen information
if (ioctl(fbfd, FBIOGET_FSCREENINFO, &finfo)) {
printf("Error reading fixed information./n");
exit(2);
}
// get variable screen information
if (ioctl(fbfd, FBIOGET_VSCREENINFO, &vinfo)) {
printf("Error reading variable information./n");
exit(3);
}
// figure out the size of the screen in bytes
screensize = vinfo.xres * vinfo.yres * vinfo.bits_per_pixel / 8;
printf("%dx%d, %dbpp, screensize = %d/n", vinfo.xres, vinfo.yres, vinfo.bits_per_pixel, screensize );
// map the device to memory
fbp332 = (char *)mmap(0, screensize, PROT_READ | PROT_WRITE, MAP_SHARED,
fbfd, 0);
fbp565 = (short*)fbp332;
if ((int)fbp332 == -1) {
printf("Error: failed to map framebuffer device to memory./n");
exit(4);
}
printf("The framebuffer device was mapped to memory successfully./n");
x = 100; y = 100; // Where we are going to put the pixel
if(vinfo.bits_per_pixel == 16) // 8bpp only
{
// 8bpp framebuffer test
printf("16 bpp framebuffer test/n");
printf("a byte in fbp is a pixel of LCD, just set the value of fbp to put color to LCD/n");
printf("byte format:/n");
printf(" bit:| 7 6 5 | 4 3 2 | 1 0 |/n");
printf(" | red | green | blue |/n");
// red Screen
printf("Red Screen/n");
for(y = 0; y < vinfo.yres/3; y++)
{
for(x = 0; x < vinfo.xres ; x++)
{
*(fbp565 + y * vinfo.xres + x) = 0;
}
}
// green Screen
printf("Green Screen/n");
for(y = vinfo.yres/3; y < (vinfo.yres*2)/3; y++)
{
for(x = 0; x < vinfo.xres/2 - 59; x++)
{
*(fbp565 + y * vinfo.xres + x) =GREEN_COLOR565/2;
}
}
// blue Screen
printf("Blue Screen/n");
for(y = (vinfo.yres*2)/3; y < vinfo.yres; y++)
{
for(x = 0; x < vinfo.xres; x++)
{
*(fbp565 + y * vinfo.xres + x) = BLUE_COLOR565;
}
}
}
else if(vinfo.bits_per_pixel == 8)
{
// 8bpp framebuffer test
printf("8bpp framebuffer test/n");
printf("a byte in fbp is a pixel of LCD, just set the value of fbp to put color to LCD/n");
printf("byte format:/n");
printf(" bit:| 7 6 5 | 4 3 2 | 1 0 |/n");
printf(" | red | green | blue |/n");
// red Screen
printf("Red Screen/n");
for(y = 0; y < vinfo.yres/3; y++)
{
for(x = 0; x < vinfo.xres/2-100; x++)
{
*(fbp332 + y * vinfo.xres + x) = RED_COLOR332;
}
}
// green Screen
printf("Green Screen/n");
for(y = vinfo.yres/3; y < (vinfo.yres*2)/3; y++)
{
for(x = 0; x < vinfo.xres/2-50; x++)
{
*(fbp332 + y * vinfo.xres + x) = GREEN_COLOR332;
}
}
// blue Screen
printf("Blue Screen/n");
for(y = (vinfo.yres*2)/3; y < vinfo.yres; y++)
{
for(x = 0; x < vinfo.xres-10; x++)
{
*(fbp332 + y * vinfo.xres + x) = BLUE_COLOR332;
}
}
}
else
printf("8/16 bits only!/n");
munmap(fbp332, screensize);
close(fbfd);
return 0;
}
arm-linux-gcc -static -o lcd_show lcd_show.c
sudo mount -o loop initrd.img XXX (XXX -- your mount directory)
sudo cp lcd_show XXX/bin/
sudo umount XXX
skyeye -e vmlinux
xuqiang@ubuntu:~/Embedded/s3c2410x-2.6.14$ skyeye -e vmlinux
big_endian is false.
arch: arm
cpu info: armv4, arm920t, 41009200, ff00fff0, 2
mach info: name s3c2410x, mach_init addr 0x805f030
ethmod num=1, mac addr=0:4:3:2:1:f, hostip=10.0.0.1
failed to setup_module (name:net, type:cs8900a)
tapif_init: icotl TUNSETIFF errorlcd_mod:1
uart_mod:0, desc_in:, desc_out:, converter:
SKYEYE: use arm920t mmu ops
Loaded RAM ./initrd.img
start addr is set to 0xc0008000 by exec file.
Linux version 2.6.14 (root@lee) (gcc version 3.4.6) #48 Sat Feb 10 06:29:17 CST 2007
CPU: ARM920Tid(wb) [41009200] revision 0 (ARMvundefined/unknown)
Machine: SMDK2410
Warning: bad configuration page, trying to continue
Memory policy: ECC disabled, Data cache writeback
CPU S3C2410 (id 0x32410000)
S3C2410: core 62.400 MHz, memory 62.400 MHz, peripheral 62.400 MHz
S3C2410 Clocks, (c) 2004 Simtec Electronics
CLOCK: Slow mode (1.500 MHz), fast, MPLL on, UPLL on
CPU0: D VIVT write-back cache
CPU0: I cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets
CPU0: D cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets
Built 1 zonelists
Kernel command line: mem=32M console=ttySAC0 root=/dev/ram initrd=0xc0800000,0x00800000 ramdisk_size=2048 rw
PID hash table entries: 256 (order: 8, 4096 bytes)
timer tcon=00000000, tcnt cb1f, tcfg 00000200,00000000, usec 0000189e
Console: colour dummy device 80x30
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 32MB = 32MB total
Memory: 22168KB available (1510K code, 373K data, 100K init)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
checking if image is initramfs...it isn't (bad gzip magic numbers); looks like an initrd
softlockup thread 0 started up.
Freeing initrd memory: 8192K
NET: Registered protocol family 16
S3C2410: Initialising architecture
S3C2410 DMA Driver, (c) 2003-2004 Simtec Electronics
DMA channel 0 at c2800000, irq 33
DMA channel 1 at c2800040, irq 34
DMA channel 2 at c2800080, irq 35
DMA channel 3 at c28000c0, irq 36
NetWinder Floating Point Emulator V0.97 (double precision)
ERROR: s3c2410x_io_write_word(0x4d000060) = 0x00000000
ERROR: s3c2410x_io_write_word(0x4d000050) = 0x00000000
[GTK_LCD]: Can't find LCD DMA from address 0x0
ERROR: s3c2410x_io_write_word(0x4d000060) = 0x00000000
ERROR: s3c2410x_io_write_word(0x4d000050) = 0x00000000
Console: switching to colour frame buffer device 40x29
fb0: s3c2410fb frame buffer device
S3C2410 RTC, (c) 2004 Simtec Electronics
Software Watchdog Timer: 0.07 initialized. soft_noboot=0 soft_margin=60 sec (nowayout= 0)
ttySAC0 at MMIO 0x50000000 (irq = 70) is a S3C2410
ttySAC1 at MMIO 0x50004000 (irq = 73) is a S3C2410
ttySAC2 at MMIO 0x50008000 (irq = 76) is a S3C2410
io scheduler noop registered
io scheduler deadline registered
RAMDISK driver initialized: 16 RAM disks of 2048K size 1024 blocksize
cs89x0:cs89x0_probe(0x0)
ERROR: s3c2410x_io_write_word(0x1900030a) = 0x00000000
cs89x0: no cs8900 or cs8920 detected. Be sure to disable PnP with SETUP
mice: PS/2 mouse device common for all mice
NET: Registered protocol family 2
IP route cache hash table entries: 512 (order: -1, 2048 bytes)
TCP established hash table entries: 2048 (order: 1, 8192 bytes)
TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 2048 bind 2048)
TCP reno registered
TCP bic registered
NET: Registered protocol family 1
RAMDISK: ext2 filesystem found at block 0
RAMDISK: Loading 2048KiB [1 disk] into ram disk... done.
VFS: Mounted root (ext2 filesystem).
Freeing init memory: 100K
init started: BusyBox v1.4.1 (2007-02-10 01:19:06 CST) multi-call binary
Starting pid 19, console /dev/console: '/etc/init.d/rcS'
ifconfig: SIOCSIFADDR: No such device
Welcome to
_ _____ __ __ _ _
/ / / __ / / /_/ / | | |_|
/ _ / | | | | / // // / | | _ ____ _ _ _ _
/ /_/ / | |__| | / / /_/ / /| | | | _ /| | | |/ // /
/ /___/ / | |__/ / | | | || |___ | | |_| | |_| |/ /
/_/ /_/| | /_/|_| |_||_____||_|_| |_|/____|/_//_/
ARMLinux for Skyeye
For further information please check:
http://www.skyeye.org/
BusyBox v1.4.1 (2007-02-10 01:19:06 CST) Built-in shell (ash)
Enter 'help' for a list of built-in commands.
/bin/ash: can't access tty; job control turned off
/ $ cd bin
/bin $ ./lcd_show
The framebuffer device was opened successfully.
240x320, 16bpp, screensize = 153600
The framebuffer device was mapped to memory successfully.
16 bpp framebuffer test
a byte in fbp is a pixel of LCD, just set the value of fbp to put color to LCD
byte format:
bit:| 7 6 5 | 4 3 2 | 1 0 |
| red | green | blue |
Red Screen
Green Screen
Blue Screen
上面的整个工程可以在下面下载：
http://hi.csdn.net/link.php?url=http://xuqianghit.download.csdn.net
还有就是注意在编译lcd_show.c时，如果没有使用-static的话，即便在mount之后，拷贝到/bin下，skyeye模拟是存在
该文件，但是无法运行的，一般出现的错误是XXX : not found
最后就是需要说明的是最后使用ctrl + ｃ来结束仿真。
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