T3270(7)T3270(7)NAMEt3270 - Silicon Graphics 3270 interface card
DESCRIPTION
This is the driver for the Silicon Graphics 3270 interface card. The
card is a communication adapter for the connection of a Silicon Graphics
4D system to a IBM 3270 Cluster Controller using the 3270 Coax Type A
protocol.
For Control Unit Terminal (CUT) operations, the coax emulation code is
soft-loaded by the driver onto the card to maintain the session, and to
manage the contents of the display buffer.
For Distributed Function Terminal (DFT) operations, the coax emulation
code is to maintain the communication session, while the driver is
responsible for the decoding and execution of the SNA data stream.
The interface between the coax emulation code and the driver is
maintained as a dual-ported communication memory area, while the
interface between the driver and the application level emulator
(t3270(1)) is through ioctl.
#include <sys/t3270reg.h>
di_info_t diaginfo;
ioctl(fd,UCODE_DLOAD,addr);/* microcode download */
ioctl(fd,START_8344,0);/* start the DP8344 */
ioctl(fd,EM_CTRL,ctrl_word);/* set emulation control */
ioctl(fd,SET_DID,id);/* set device id */
ioctl(fd,START_COMM,0);/* start communication */
ioctl(fd,STOP_COMM,0);/* stop communication */
ioctl(fd,CUR_UD,cursor);/* get cursor */
ioctl(fd,SCR_UD,scr);/* update screen */
ioctl(fd,SEND_KEY,key);/* send key code */
ioctl(fd,BEGIN_MSG,0);/* begin messaging mode */
ioctl(fd,STOP_MSG,0);/* stop messaging mode */
ioctl(fd,SEND_MSG,msg_count);/* send message */
ioctl(fd,RECV_MSG,addr);/* receive message */
ioctl(fd,SET_TIME,t);/* set timeout */
ioctl(fd,SELF_TST,&diaginfo);/* self test */
ioctl(fd,REG_TST,&diaginfo);/* register test */
ioctl(fd,DP_MEM_TST,&diaginfo);/* data memory test */
ioctl(fd,IT_MEM_TST,&diaginfo);/* instruction memory test */
typedef struct {
u_int pattn_w;/* pattern written */
u_int pattn_r;/* pattern read */
u_short err_addr;/* where error occur */
u_char err_flag;/* type of error */
u_char cycles;/* # of test cycle */
} di_info_t; /* diag info */
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T3270(7)T3270(7)
Only one device file may be opened at a time.
FILES
/dev/t3270
SEE ALSOt3270(1)
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