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Merge pull request #145 from antonblanchard/sim_console-fix

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sim_console: Use cfmakeraw() and add option for ctrl-c to exit sim
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Anton Blanchard 2020-01-22 14:48:07 +11:00 committed by GitHub
commit 6a9bc46fcb
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1 changed files with 11 additions and 12 deletions
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23
sim_console_c.c
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@ -7,6 +7,8 @@
#include <unistd.h>
#include <poll.h>
/* Should we exit simulation on ctrl-c or pass it through? */
#define EXIT_ON_CTRL_C
#define vhpi0 2 /* forcing 0 */
#define vhpi1 3 /* forcing 1 */
@ -59,12 +61,12 @@ static void to_std_logic_vector(unsigned long val, unsigned char *p,
static struct termios oldt;
static void restore_termios(void)
static void disable_raw_mode(void)
{
tcsetattr(STDIN_FILENO, TCSANOW, &oldt);
}
static void nonblocking(void)
static void enable_raw_mode(void)
{
static bool initialized = false;
@ -73,16 +75,13 @@ static void nonblocking(void)
tcgetattr(STDIN_FILENO, &oldt);
newt = oldt;
newt.c_lflag &= ~(ICANON|ECHO);
newt.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON);
newt.c_oflag &= ~(OPOST);
newt.c_cflag |= (CS8);
newt.c_lflag &= ~(ECHO | ICANON | IEXTEN | ISIG);
cfmakeraw(&newt);
#ifdef EXIT_ON_CTRL_C
newt.c_lflag |= ISIG;
#endif
tcsetattr(STDIN_FILENO, TCSANOW, &newt);
initialized = true;
atexit(restore_termios);
atexit(disable_raw_mode);
}
}
@ -91,7 +90,7 @@ void sim_console_read(unsigned char *__rt)
int ret;
unsigned long val = 0;
nonblocking();
enable_raw_mode();
ret = read(STDIN_FILENO, &val, 1);
if (ret != 1) {
@ -110,7 +109,7 @@ void sim_console_poll(unsigned char *__rt)
struct pollfd fdset[1];
uint8_t val = 0;
nonblocking();
enable_raw_mode();
memset(fdset, 0, sizeof(fdset));