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svn_rev_407 

implement tstc with select()
This commit is contained in:
Sascha Hauer 2007-07-05 18:01:51 +02:00 committed by Sascha Hauer
parent 014678f7a0
commit 8dcf04a2c6
1 changed files with 29 additions and 13 deletions
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42
arch/linux/lib/common.c
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@ -15,6 +15,8 @@
#include <asm/arch/linux.h>
#include <asm/arch/hostfile.h>
#include <errno.h>
#include <signal.h>
#include <sys/select.h>
static struct termios term_orig, term_vi;
static char erase_char; // the users erase character
@ -23,7 +25,7 @@ static void rawmode(void)
{
tcgetattr(0, &term_orig);
term_vi = term_orig;
term_vi.c_lflag &= (~ICANON & ~ECHO); // leave ISIG ON- allow intr's
term_vi.c_lflag &= (~ICANON & ~ECHO & ~ISIG); // leave ISIG ON- allow intr's
term_vi.c_iflag &= (~IXON & ~ICRNL);
term_vi.c_oflag &= (~ONLCR);
term_vi.c_cc[VMIN] = 1;
@ -38,25 +40,44 @@ static void cookmode(void)
tcsetattr(0, TCSANOW, &term_orig);
}
void serial_putc (const char c)
void linux_putc (const char c)
{
fputc(c, stdout);
/* If \n, also do \r */
if (c == '\n')
serial_putc ('\r');
linux_putc ('\r');
fflush(stdout);
}
int serial_tstc (void)
int linux_tstc (void)
{
fd_set rfds;
struct timeval tv;
int ret;
FD_ZERO(&rfds);
FD_SET(0, &rfds);
tv.tv_sec = 0;
tv.tv_usec = 100;
ret = select(1, &rfds, NULL, NULL, &tv);
if (ret)
return 1;
return 0;
}
void serial_puts (const char *s)
int linux_getc (void)
{
while (*s) {
serial_putc (*s++);
}
char ret;
read(0, &ret, 1);
return ret;
}
uint64_t linux_get_time(void)
@ -85,11 +106,6 @@ void disable_interrupt (void)
{
}
int serial_getc (void)
{
return fgetc(stdin);
}
int linux_read(int fd, void *buf, size_t count)
{
return read(fd, buf, count);