* regarding pci vga card output with powerpc @ 2006-08-07 9:35 urwithsudheer 2006-08-09 23:06 ` Andrey Volkov 0 siblings, 1 reply; 5+ messages in thread From: urwithsudheer @ 2006-08-07 9:35 UTC (permalink / raw) To: linuxppc-embedded [-- Attachment #1: Type: text/plain, Size: 1098 bytes --] Hello All, I am working with a pci based vga card. I have connected the vga card next to the pci slot of my target processor on the baseboard. I have connected a monitor to the vga card. When i boot linux from minicom, i could see all the kernel log messages on both the minicom and vga card monitor. But on the vga monitor, i could not see any messages after asking for login as below: . . Mounting filesystems Running depmod Setting up networking on loopback device: Setting up networking on eth0: eth0: PHY is Marvell 88E11x1 (1410cc2) Adding static route for default gateway to 192.168.3.1: Setting nameserver to 192.168.0.1 in /etc/resolv.conf: Starting inetd: login: Though i am entering my login and passwd at the minicom, nothing comes on to the vga monitor. But i am able to write to vga monitor using the following commands from minicom: # echo "Hello" > /dev/tty1 # echo "Hi " > /dev/tty1 My requirement is to get on the vga monitor whatever i am typing on the minicom after logging into the linux like . ls or pwd commands. Anyone pl help me. Thanks & Regards Sudheer [-- Attachment #2: Type: text/html, Size: 1606 bytes --] ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: regarding pci vga card output with powerpc 2006-08-07 9:35 regarding pci vga card output with powerpc urwithsudheer @ 2006-08-09 23:06 ` Andrey Volkov 2006-08-10 5:08 ` sudheer 0 siblings, 1 reply; 5+ messages in thread From: Andrey Volkov @ 2006-08-09 23:06 UTC (permalink / raw) To: urwithsudheer; +Cc: linuxppc-embedded urwithsudheer wrote: > Hello All, > I am working with a pci based vga card. I have connected the vga card > next to the pci slot of my target processor on the baseboard. > I have connected a monitor to the vga card. > When i boot linux from minicom, i could see all the kernel log messages > on both the minicom and vga card monitor. But on the vga monitor, i > could not see any messages after asking for login as below: > . > . > > Mounting filesystems > Running depmod > Setting up networking on loopback device: > Setting up networking on eth0: > eth0: PHY is Marvell 88E11x1 (1410cc2) > Adding static route for default gateway to 192.168.3.1: > Setting nameserver to 192.168.0.1 in /etc/resolv.conf: > Starting inetd: > > login: > > > Though i am entering my login and passwd at the minicom, nothing comes > on to the vga monitor. But i am able to write to vga monitor using the > following commands from minicom: > > # echo "Hello" > /dev/tty1 > # echo "Hi " > /dev/tty1 > My requirement is to get on the vga monitor whatever i am typing on the > minicom after logging into the linux like . > ls or pwd commands. > > Anyone pl help me. > > Thanks & Regards > Sudheer > See Documentation/kernel-parameters.txt. If be short, add: console=/dev/ttySxx console=/dev/tty1 (both) to a kernel parameters string. -- Regards Andrey ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: regarding pci vga card output with powerpc 2006-08-09 23:06 ` Andrey Volkov @ 2006-08-10 5:08 ` sudheer 2006-08-10 6:11 ` Andrey Volkov 0 siblings, 1 reply; 5+ messages in thread From: sudheer @ 2006-08-10 5:08 UTC (permalink / raw) To: Andrey Volkov; +Cc: linuxppc-embedded [-- Attachment #1: Type: text/plain, Size: 2862 bytes --] Andrey Volkov wrote: > urwithsudheer wrote: >> Hello All, >> I am working with a pci based vga card. I have connected the vga card >> next to the pci slot of my target processor on the baseboard. >> I have connected a monitor to the vga card. >> When i boot linux from minicom, i could see all the kernel log >> messages on both the minicom and vga card monitor. But on the vga >> monitor, i could not see any messages after asking for login as below: >> . >> . >> >> Mounting filesystems >> Running depmod >> Setting up networking on loopback device: >> Setting up networking on eth0: >> eth0: PHY is Marvell 88E11x1 (1410cc2) >> Adding static route for default gateway to 192.168.3.1: >> Setting nameserver to 192.168.0.1 in /etc/resolv.conf: >> Starting inetd: >> >> login: >> >> >> Though i am entering my login and passwd at the minicom, nothing >> comes on to the vga monitor. But i am able to write to vga monitor >> using the following commands from minicom: >> >> # echo "Hello" > /dev/tty1 >> # echo "Hi " > /dev/tty1 >> My requirement is to get on the vga monitor whatever i am typing on >> the minicom after logging into the linux like . >> ls or pwd commands. >> >> Anyone pl help me. >> >> Thanks & Regards >> Sudheer >> > > See Documentation/kernel-parameters.txt. > > If be short, add: > > console=/dev/ttySxx console=/dev/tty1 > > (both) to a kernel parameters string. > I got upto login prompt on the vga monitor only after giving the above parameters in my u-boot bootargs. u-boot=> set bootargs console=tty1 console=ttyS0,115200. I have added in the serial driver linux/drivers/serial/serial_core.c in the function uart_write(struct tty_struct *tty, const unsigned char * buf, int count) The lines in the if directive. if (c <= 0) break; memcpy(circ->buf + circ->head, buf, c); /* added to test vga */ #if 1 memcpy(tempbuf, circ->buf + circ->head, c); for(i=0;i<c;i++) printk("%c", tempbuf[i]); #endif circ->head = (circ->head + c) & (UART_XMIT_SIZE - 1); buf += c; Then as i expected, all the letters i enter in the minicom came twice on the minicom. login:rroooott Password: Password: login on `ttyS0'ogin on `ttyS0'login[83]: root ~ # ~ # llss ~ # ~ # iiffccoonnffiigg And whatever i enter on the minicom also gets print on the vga monitor but only once. When i comment the if directive, On the vga monitor i could see only upto login prompt. I don't know why the printk statement i added in the serial driver prints on the vga monitor. As said by shkatikannan, i am going through the vga driver to copy to the frambuffer. But yet couldn't get it exactly in the code where to copy. Please tell me if i am in the wrong path. Thanks & Regards Sudheer > -- > Regards > Andrey > > [-- Attachment #2: Type: text/html, Size: 4464 bytes --] ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: regarding pci vga card output with powerpc 2006-08-10 5:08 ` sudheer @ 2006-08-10 6:11 ` Andrey Volkov 2006-08-10 7:10 ` sudheer 0 siblings, 1 reply; 5+ messages in thread From: Andrey Volkov @ 2006-08-10 6:11 UTC (permalink / raw) To: sudheer; +Cc: linuxppc-embedded sudheer wrote: > Andrey Volkov wrote: >> urwithsudheer wrote: >>> Hello All, >>> I am working with a pci based vga card. I have connected the vga card >>> next to the pci slot of my target processor on the baseboard. >>> I have connected a monitor to the vga card. >>> When i boot linux from minicom, i could see all the kernel log >>> messages on both the minicom and vga card monitor. But on the vga >>> monitor, i could not see any messages after asking for login as below: >>> . >>> . >>> >>> Mounting filesystems >>> Running depmod >>> Setting up networking on loopback device: >>> Setting up networking on eth0: >>> eth0: PHY is Marvell 88E11x1 (1410cc2) >>> Adding static route for default gateway to 192.168.3.1: >>> Setting nameserver to 192.168.0.1 in /etc/resolv.conf: >>> Starting inetd: >>> >>> login: >>> >>> >>> Though i am entering my login and passwd at the minicom, nothing >>> comes on to the vga monitor. But i am able to write to vga monitor >>> using the following commands from minicom: >>> >>> # echo "Hello" > /dev/tty1 >>> # echo "Hi " > /dev/tty1 >>> My requirement is to get on the vga monitor whatever i am typing on >>> the minicom after logging into the linux like . >>> ls or pwd commands. >>> >>> Anyone pl help me. >>> >>> Thanks & Regards >>> Sudheer >>> >> >> See Documentation/kernel-parameters.txt. >> >> If be short, add: >> >> console=/dev/ttySxx console=/dev/tty1 >> >> (both) to a kernel parameters string. >> > I got upto login prompt on the vga monitor only after giving the above > parameters in my u-boot bootargs. > u-boot=> set bootargs console=tty1 console=ttyS0,115200. > > > I have added in the serial driver linux/drivers/serial/serial_core.c > in the function uart_write(struct tty_struct *tty, const unsigned > char * buf, int count) > The lines in the if directive. > > if (c <= 0) > break; > memcpy(circ->buf + circ->head, buf, c); > /* added to test vga */ > #if 1 > memcpy(tempbuf, circ->buf + circ->head, c); > for(i=0;i<c;i++) > printk("%c", tempbuf[i]); > #endif > > circ->head = (circ->head + c) & (UART_XMIT_SIZE - 1); > buf += c; > > Then as i expected, all the letters i enter in the minicom came twice on > the minicom. Because printk didn't print to an dedicated device, but to a klog stream. So check your /etc/inittab and /etc/securetty, its similar that something wrong in this files. > > login:rroooott > Password: Password: > login on `ttyS0'ogin on `ttyS0'login[83]: root > > ~ # ~ # llss > ~ # ~ # iiffccoonnffiigg > > And whatever i enter on the minicom also gets print on the vga monitor > but only once. > When i comment the if directive, On the vga monitor i could see only > upto login prompt. > > I don't know why the printk statement i added in the serial driver > prints on the vga monitor. > > As said by shkatikannan, i am going through the vga driver to copy to > the frambuffer. But yet couldn't get it exactly in the code where to copy. > > Please tell me if i am in the wrong path. > > Thanks & Regards > Sudheer > -- Regards Andrey ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: regarding pci vga card output with powerpc 2006-08-10 6:11 ` Andrey Volkov @ 2006-08-10 7:10 ` sudheer 0 siblings, 0 replies; 5+ messages in thread From: sudheer @ 2006-08-10 7:10 UTC (permalink / raw) To: Andrey Volkov; +Cc: linuxppc-embedded [-- Attachment #1: Type: text/plain, Size: 3839 bytes --] Andrey Volkov wrote: > sudheer wrote: > >> Andrey Volkov wrote: >> >>> urwithsudheer wrote: >>> >>>> Hello All, >>>> I am working with a pci based vga card. I have connected the vga card >>>> next to the pci slot of my target processor on the baseboard. >>>> I have connected a monitor to the vga card. >>>> When i boot linux from minicom, i could see all the kernel log >>>> messages on both the minicom and vga card monitor. But on the vga >>>> monitor, i could not see any messages after asking for login as below: >>>> . >>>> . >>>> >>>> Mounting filesystems >>>> Running depmod >>>> Setting up networking on loopback device: >>>> Setting up networking on eth0: >>>> eth0: PHY is Marvell 88E11x1 (1410cc2) >>>> Adding static route for default gateway to 192.168.3.1: >>>> Setting nameserver to 192.168.0.1 in /etc/resolv.conf: >>>> Starting inetd: >>>> >>>> login: >>>> >>>> >>>> Though i am entering my login and passwd at the minicom, nothing >>>> comes on to the vga monitor. But i am able to write to vga monitor >>>> using the following commands from minicom: >>>> >>>> # echo "Hello" > /dev/tty1 >>>> # echo "Hi " > /dev/tty1 >>>> My requirement is to get on the vga monitor whatever i am typing on >>>> the minicom after logging into the linux like . >>>> ls or pwd commands. >>>> >>>> Anyone pl help me. >>>> >>>> Thanks & Regards >>>> Sudheer >>>> >>>> >>> See Documentation/kernel-parameters.txt. >>> >>> If be short, add: >>> >>> console=/dev/ttySxx console=/dev/tty1 >>> >>> (both) to a kernel parameters string. >>> >>> >> I got upto login prompt on the vga monitor only after giving the above >> parameters in my u-boot bootargs. >> u-boot=> set bootargs console=tty1 console=ttyS0,115200. >> >> >> I have added in the serial driver linux/drivers/serial/serial_core.c >> in the function uart_write(struct tty_struct *tty, const unsigned >> char * buf, int count) >> The lines in the if directive. >> >> if (c <= 0) >> break; >> memcpy(circ->buf + circ->head, buf, c); >> /* added to test vga */ >> #if 1 >> memcpy(tempbuf, circ->buf + circ->head, c); >> for(i=0;i<c;i++) >> printk("%c", tempbuf[i]); >> #endif >> >> circ->head = (circ->head + c) & (UART_XMIT_SIZE - 1); >> buf += c; >> >> Then as i expected, all the letters i enter in the minicom came twice on >> the minicom. >> > > Because printk didn't print to an dedicated device, but to a klog > stream. So check your /etc/inittab and /etc/securetty, its similar > that something wrong in this files. > oh..sorry, i forgot to tell you about the other two modifications done in the kernel config and ramdisk. In the kernel config-- I have selected the virtual terminal option. In the ramdisk- etc/inittab - i added the following line: ::respawn:/sbin/getty tty1 115200 vt100. The etc/securetty contains the following: console fb0 tty1 tty2 tty3 tty4 tty5 tty6 tty7 tty8 ttyS0 ttyS1 ttyS2 ttyS3 ttyp0 ttyp1 ttyp2 ttyp3 ttyAM0 ttyAM1 tts/0 tts/1 Do i need to use fb0, to send the serial data to frame buffer ? > >> login:rroooott >> Password: Password: >> login on `ttyS0'ogin on `ttyS0'login[83]: root >> >> ~ # ~ # llss >> ~ # ~ # iiffccoonnffiigg >> >> And whatever i enter on the minicom also gets print on the vga monitor >> but only once. >> When i comment the if directive, On the vga monitor i could see only >> upto login prompt. >> >> I don't know why the printk statement i added in the serial driver >> prints on the vga monitor. >> >> As said by shkatikannan, i am going through the vga driver to copy to >> the frambuffer. But yet couldn't get it exactly in the code where to copy. >> >> Please tell me if i am in the wrong path. >> >> Thanks & Regards >> Sudheer >> >> [-- Attachment #2: Type: text/html, Size: 4405 bytes --] ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2006-08-10 7:10 UTC | newest] Thread overview: 5+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2006-08-07 9:35 regarding pci vga card output with powerpc urwithsudheer 2006-08-09 23:06 ` Andrey Volkov 2006-08-10 5:08 ` sudheer 2006-08-10 6:11 ` Andrey Volkov 2006-08-10 7:10 ` sudheer
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